CN108168045A - Air conditioner temperature controlling method, device and liquid chilling air conditioning system - Google Patents
Air conditioner temperature controlling method, device and liquid chilling air conditioning system Download PDFInfo
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Abstract
The embodiment of the invention discloses a kind of air conditioner temperature controlling method, device and liquid chilling air conditioning systems.This method includes：The air-conditioning duct of timing acquiring liquid chilling air conditioning system currently returns liquid temperature；According to current Positive-Negative Action parameter, the set temperature value of liquid chilling air conditioning system and the current output frequency for returning liquid temperature, controlling frequency converter with the corresponding frequency converter of the non-frequency of liquid chilling air conditioning system pump, to control the temperature of liquid in air-conditioning duct.Air conditioner temperature controlling method, device and the liquid chilling air conditioning system of the embodiment of the present invention, the discontinuous output frequency for adjusting frequency converter, the working power frequency of the i.e. discontinuous non-frequency motor for adjusting non-frequency pump, the working power frequency of the non-frequency motor of non-frequency pump is not continuously adjusted, the service life of non-frequency pump can be improved, and without additionally installing cooling system additional, cost can be reduced.
Description
Technical field
The present invention relates to a kind of air conditioner controlling technology field more particularly to air conditioner temperature controlling method, device and liquid to store
Cold air conditioning system.
Background technology
Current water cool-storage technology system mostly controls the flow velocity of the water in air-conditioning duct using frequency converter and non-frequency pump,
And then come the temperature that controls water in air-conditioning duct.
Since the motor of non-frequency pump installation is non-frequency motor, when the work that non-frequency motor is frequently adjusted using frequency converter
It when making supply frequency, easily increases non-frequency motor temperature, influences the service life of non-frequency motor, and then influence non-frequency
The service life of pump.
In order to improve the service life of non-frequency pump, usually install the motor that cooling system pumps non-frequency additional and cool down.
But cost can additionally be increased by installing cooling system additional.
Invention content
The embodiment of the present invention provides a kind of air conditioner temperature controlling method, device and liquid chilling air conditioning system, can improve
The service life of non-frequency pump, and cost can be reduced.
On the one hand, an embodiment of the present invention provides a kind of air conditioner temperature controlling method, applied to the liquid pumped including non-frequency
Body chilling air conditioning system, method include：
The air-conditioning duct of timing acquiring liquid chilling air conditioning system currently returns liquid temperature, wherein, currently returning liquid temperature is
Current time enters the temperature of the liquid of the heat exchanger of liquid chilling air conditioning system；
According to current Positive-Negative Action parameter, the setting temperature of liquid chilling air conditioning system with the corresponding frequency converter of non-frequency pump
Angle value and currently time liquid temperature control the output frequency of frequency converter, to control the temperature of liquid in air-conditioning duct.
On the other hand, an embodiment of the present invention provides a kind of control device for temperature of air conditioner, applied to what is pumped including non-frequency
Liquid chilling air conditioning system, device include：
Acquisition module, for the currently time liquid temperature of the air-conditioning duct of timing acquiring liquid chilling air conditioning system, wherein, when
Preceding time liquid temperature enters the temperature of the liquid of the heat exchanger of liquid chilling air conditioning system for current time；
Control module, for current Positive-Negative Action parameter of the basis with the corresponding frequency converter of non-frequency pump, liquid cold-storage sky
The set temperature value of adjusting system and currently time liquid temperature control the output frequency of frequency converter, to control liquid in air-conditioning duct
Temperature.
In another aspect, an embodiment of the present invention provides a kind of liquid chilling air conditioning system, including：Non-frequency pump, frequency converter,
The control device for temperature of air conditioner of heat exchanger and the embodiment of the present invention.
Air conditioner temperature controlling method, device and the liquid chilling air conditioning system of the embodiment of the present invention, discrete intermittence are (i.e. non-
Continuously) adjust the output frequency of frequency converter, i.e., the discrete intermittent working power frequency for adjusting the non-frequency motor that non-frequency pumps,
The working power frequency of the non-frequency motor of non-frequency pump is not continuously adjusted, the service life of non-frequency pump can be improved, and
And without additionally installing cooling system additional, cost can be reduced.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, it will make below to required in the embodiment of the present invention
Attached drawing is briefly described, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to these attached drawings.
Fig. 1 shows the flow diagram of air conditioner temperature controlling method provided in an embodiment of the present invention；
Fig. 2 shows the structure diagrams of control device for temperature of air conditioner provided in an embodiment of the present invention；
Fig. 3 shows the first structure diagram of liquid chilling air conditioning system provided in an embodiment of the present invention；
Fig. 4 shows second of structure diagram of liquid chilling air conditioning system provided in an embodiment of the present invention.
Specific embodiment
The feature and exemplary embodiment of various aspects of the invention is described more fully below, in order to make the mesh of the present invention
, technical solution and advantage be more clearly understood, with reference to the accompanying drawings and embodiments, the present invention is further retouched in detail
It states.It should be understood that specific embodiment described herein is only configured to explain the present invention, it is not configured as limiting the present invention.
To those skilled in the art, the present invention can be real in the case of some details in not needing to these details
It applies.The description of embodiment is used for the purpose of by showing that the example of the present invention is better understood from the present invention to provide below.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any this practical relationship or sequence.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Non-exclusive inclusion, so that process, method, article or equipment including a series of elements not only will including those
Element, but also including other elements that are not explicitly listed or further include as this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence " including ... ", it is not excluded that including
Also there are other identical elements in the process of the element, method, article or equipment.
In order to solve prior art problem, an embodiment of the present invention provides a kind of air conditioner temperature controlling method, device and liquid
Body chilling air conditioning system is first below described in detail air conditioner temperature controlling method provided in an embodiment of the present invention.
Need what is illustrated, the air conditioner temperature controlling method of the embodiment of the present invention is preferably applied to the liquid for including non-frequency pump
Body chilling air conditioning system.
As shown in Figure 1, Fig. 1 shows the flow diagram of air conditioner temperature controlling method provided in an embodiment of the present invention.Its
It can include：
S101：The air-conditioning duct of timing acquiring liquid chilling air conditioning system currently returns liquid temperature.
Wherein, it is the temperature of the liquid of heat exchanger for entering liquid chilling air conditioning system at current time currently to return liquid temperature.
S102：According to the corresponding frequency converter of non-frequency pump current Positive-Negative Action parameter, liquid chilling air conditioning system
Set temperature value and currently time liquid temperature control the output frequency of frequency converter, to control the temperature of liquid in air-conditioning duct.
Wherein, the Positive-Negative Action parameter of frequency converter includes positive interaction parameter and reaction parameter.When set temperature value is constant,
When currently returning liquid temperature increase, the input of frequency converter increases, and the output of frequency converter at this time also increases, at this time frequency converter positive interaction,
Or ought currently to return liquid temperature-resistant, when set temperature value reduces, the input of frequency converter increases, and the output of frequency converter at this time also increases
Add, frequency converter is also positive interaction at this time., whereas if when currently returning the increase of liquid temperature or set temperature value reduction, frequency converter
Output reduce frequency converter reaction at this time.Wherein, the Positive-Negative Action parameter of frequency converter is preset.
In one embodiment of the invention, timing acquiring can preset acquisition time, such as：During setting acquisition
Between point for 1:00,8:00,10:30,12:00,14:00,18:00,22:00,23:00:, 0:00 etc..It is set in advance when the time reaches
Liquid temperature is acquired back during fixed acquisition time.In one embodiment of the invention, timing acquiring can preset the time
Section, such as two hours.Then since setting or starting the acquisition moment, liquid temperature was acquired back every two hours.
In one embodiment of the invention, S102 can include：Obtain current Positive-Negative Action parameter, the frequency conversion of frequency converter
The current output frequency of device, the maximum output frequency of frequency converter, the minimum output frequency of frequency converter, set temperature value, default frequency
Rate adjusted value, the first preset temperature threshold and the second preset temperature threshold, wherein, it is pre- that the first preset temperature threshold is more than second
If temperature threshold；According to current Positive-Negative Action parameter, currently return liquid temperature, set temperature value, current output frequency, maximum output
Frequency, minimum output frequency, predeterminated frequency adjusted value, the first preset temperature threshold and the second preset temperature threshold, control become
The output frequency of frequency device.
In one embodiment of the invention, according to current Positive-Negative Action parameter, currently return liquid temperature, set temperature value,
Current output frequency, maximum output frequency, minimum output frequency, predeterminated frequency adjusted value, the first preset temperature threshold and the
Two preset temperature thresholds control the output frequency of frequency converter, can include：If currently Positive-Negative Action parameter is reaction parameter,
And it is big currently to return liquid temperature not less than the first preset temperature threshold for the absolute value of the current difference for returning liquid temperature and set temperature value
In set temperature value, the output frequency for adjusting frequency converter is the maximum output frequency of frequency converter；It currently returns liquid temperature and is less than setting
Temperature value, the output frequency for adjusting frequency converter is the minimum output frequency of frequency converter.
Illustratively, the current Positive-Negative Action parameter of the frequency converter of acquisition is reaction parameter, set temperature value is 25 DEG C,
First preset temperature threshold is 5 DEG C, and the maximum output frequency of frequency converter is the minimum output frequency 10Hz of 50Hz, frequency converter.
Assuming that collected liquid temperature of currently returning is 31 DEG C, the current difference for returning 25 DEG C of 31 DEG C of liquid temperature and set temperature value
6 DEG C of absolute value, which is more than 5 DEG C of the first preset temperature threshold and currently returns 31 DEG C of liquid temperature, is more than 25 DEG C of set temperature value, and adjustment becomes
The output frequency of frequency device is maximum output frequency 50Hz.
Assuming that collected liquid temperature of currently returning is 19 DEG C, the current difference for returning 25 DEG C of 19 DEG C of liquid temperature and set temperature value
The absolute value of -6 DEG C of value, which is more than 5 DEG C of the first preset temperature threshold and currently returns 19 DEG C of liquid temperature, is less than 25 DEG C of set temperature value, adjusts
The output frequency of whole frequency converter is minimum output frequency 10Hz.
In one embodiment of the invention, according to current Positive-Negative Action parameter, currently return liquid temperature, set temperature value,
Current output frequency, maximum output frequency, minimum output frequency, predeterminated frequency adjusted value, the first preset temperature threshold and the
Two preset temperature thresholds control the output frequency of frequency converter, can include：If currently Positive-Negative Action parameter is reaction parameter,
And the absolute value of the current difference for returning liquid temperature and set temperature value keeps the defeated of frequency converter no more than the second preset temperature threshold
It is constant to go out frequency, wherein, the first preset temperature threshold is more than the second preset temperature threshold.
Illustratively, the current Positive-Negative Action parameter of the frequency converter of acquisition is reaction parameter, set temperature value is 25 DEG C,
Second preset temperature threshold is 2 DEG C, and the current output frequency of frequency converter is 24Hz.
Assuming that collected liquid temperature of currently returning is 26 DEG C, the current difference for returning 25 DEG C of 26 DEG C of liquid temperature and set temperature value
1 DEG C of absolute value is less than 2 DEG C of the second preset temperature threshold, then the output frequency for keeping frequency converter is constant, is also 24Hz.
Assuming that collected liquid temperature of currently returning is 24 DEG C, the current difference for returning 25 DEG C of 24 DEG C of liquid temperature and set temperature value
The absolute value of -1 DEG C of value is less than 2 DEG C of the second preset temperature threshold, then the output frequency for keeping frequency converter is constant, is also 24Hz.
In one embodiment of the invention, according to current Positive-Negative Action parameter, currently return liquid temperature, set temperature value,
Current output frequency, maximum output frequency, minimum output frequency, predeterminated frequency adjusted value, the first preset temperature threshold and the
Two preset temperature thresholds control the output frequency of frequency converter, can include：If currently Positive-Negative Action parameter is reaction parameter,
And the absolute value of the current difference for returning liquid temperature and set temperature value is less than the first preset temperature threshold and absolute value is more than second
Preset temperature threshold and currently time liquid temperature are more than set temperature value, and current output frequency and the predeterminated frequency of frequency converter adjust
The sum of value no more than maximum output frequency, adjust the output frequency of frequency converter for current output frequency and predeterminated frequency adjusted value it
With；The sum of current output frequency and predeterminated frequency adjusted value are more than maximum output frequency, adjust the output frequency of frequency converter as most
Big output frequency.
Illustratively, the current Positive-Negative Action parameter of the frequency converter of acquisition is reaction parameter, the maximum output of frequency converter
Frequency is 50Hz, predeterminated frequency adjusted value is 3Hz, the first preset temperature threshold is 5 DEG C, the second preset temperature threshold is 2 DEG C, sets
Constant temperature angle value is 25 DEG C.
Assuming that the current output frequency of frequency converter is 22Hz, collected liquid temperature of currently returning is 29 DEG C, liquid temperature is currently returned
29 DEG C of degree and the absolute value of 4 DEG C of the difference of 25 DEG C of set temperature value are less than 5 DEG C of the first preset temperature threshold, default more than second warm
29 DEG C of 2 DEG C of threshold value of degree and currently time liquid temperature is more than 25 DEG C of set temperature value, and the current output frequency 22Hz of frequency converter is with presetting
The sum of frequency adjusted value 3Hz 25Hz are less than maximum output frequency 50Hz, and the output frequency for adjusting frequency converter is 25Hz.
Assuming that the current output frequency of frequency converter is 48Hz, collected liquid temperature of currently returning is 29 DEG C, liquid temperature is currently returned
29 DEG C of degree and the absolute value of 4 DEG C of the difference of 25 DEG C of set temperature value are less than 5 DEG C of the first preset temperature threshold, default more than second warm
29 DEG C of 2 DEG C of threshold value of degree and currently time liquid temperature is more than 25 DEG C of set temperature value, and the current output frequency 48Hz of frequency converter is with presetting
The sum of frequency adjusted value 3Hz 51Hz are more than maximum output frequency 50Hz, and the output frequency for adjusting frequency converter is 50Hz.
In one embodiment of the invention, according to current Positive-Negative Action parameter, currently return liquid temperature, set temperature value,
Current output frequency, maximum output frequency, minimum output frequency, predeterminated frequency adjusted value, the first preset temperature threshold and the
Two preset temperature thresholds control the output frequency of frequency converter, can include：If currently Positive-Negative Action parameter is reaction parameter,
And the absolute value of the current difference for returning liquid temperature and set temperature value is less than the first preset temperature threshold and absolute value is more than second
Preset temperature threshold and currently time liquid temperature are less than set temperature value, and current output frequency and the predeterminated frequency of frequency converter adjust
The difference of value is less than minimum output frequency, and the output frequency for adjusting frequency converter is minimum output frequency；Current output frequency is with presetting
The difference of frequency adjusted value is not less than minimum output frequency, and the output frequency for adjusting frequency converter is current output frequency and predeterminated frequency
The difference of adjusted value.
Illustratively, the current Positive-Negative Action parameter of the frequency converter of acquisition is reaction parameter, the minimum of frequency converter exports
Frequency 10Hz, predeterminated frequency adjusted value are 3Hz, the first preset temperature threshold is 5 DEG C, the second preset temperature threshold is 2 DEG C, setting
Temperature value is 25 DEG C.
Assuming that the current output frequency of frequency converter is 22Hz, collected liquid temperature of currently returning is 21 DEG C, liquid temperature is currently returned
21 DEG C of degree and the absolute value of -4 DEG C of the difference of 25 DEG C of set temperature value are less than 5 DEG C of the first preset temperature threshold, are preset more than second
2 DEG C of temperature threshold and currently return 21 DEG C of liquid temperature and be less than 25 DEG C of set temperature value, the current output frequency 22Hz of frequency converter with it is pre-
If the difference 19Hz of frequency adjusted value 3Hz is more than minimum output frequency 10Hz, the output frequency for adjusting frequency converter is 19Hz.
Assuming that the current output frequency of frequency converter is 12Hz, collected liquid temperature of currently returning is 21 DEG C, liquid temperature is currently returned
21 DEG C of degree and the absolute value of -4 DEG C of the difference of 25 DEG C of set temperature value are less than 5 DEG C of the first preset temperature threshold, are preset more than second
2 DEG C of temperature threshold and currently return 21 DEG C of liquid temperature and be less than 25 DEG C of set temperature value, the current output frequency 12Hz of frequency converter with it is pre-
If the difference 9Hz of frequency adjusted value 3Hz is less than minimum output frequency 10Hz, the output frequency for adjusting frequency converter is 10Hz.
In one embodiment of the invention, according to current Positive-Negative Action parameter, currently return liquid temperature, set temperature value,
Current output frequency, maximum output frequency, minimum output frequency, predeterminated frequency adjusted value, the first preset temperature threshold and the
Two preset temperature thresholds control the output frequency of frequency converter, can include：If currently Positive-Negative Action parameter is positive interaction parameter,
And it is big currently to return liquid temperature not less than the first preset temperature threshold for the absolute value of the current difference for returning liquid temperature and set temperature value
In set temperature value, the output frequency for adjusting frequency converter is the minimum output frequency of frequency converter；It currently returns liquid temperature and is less than setting
Temperature value, the output frequency for adjusting frequency converter is the maximum output frequency of frequency converter.
Illustratively, the current Positive-Negative Action parameter of the frequency converter of acquisition is positive interaction parameter, set temperature value is 25 DEG C,
First preset temperature threshold is 5 DEG C, and the maximum output frequency of frequency converter is the minimum output frequency 10Hz of 50Hz, frequency converter.
Assuming that collected liquid temperature of currently returning is 31 DEG C, the current difference for returning 25 DEG C of 31 DEG C of liquid temperature and set temperature value
6 DEG C of absolute value, which is more than 5 DEG C of the first preset temperature threshold and currently returns 31 DEG C of liquid temperature, is more than 25 DEG C of set temperature value, and adjustment becomes
The output frequency of frequency device is minimum output frequency 10Hz.
Assuming that collected liquid temperature of currently returning is 19 DEG C, the current difference for returning 25 DEG C of 19 DEG C of liquid temperature and set temperature value
The absolute value of -6 DEG C of value, which is more than 5 DEG C of the first preset temperature threshold and currently returns 19 DEG C of liquid temperature, is less than 25 DEG C of set temperature value, adjusts
The output frequency of whole frequency converter is maximum output frequency 50Hz.
In one embodiment of the invention, according to current Positive-Negative Action parameter, currently return liquid temperature, set temperature value,
Current output frequency, maximum output frequency, minimum output frequency, predeterminated frequency adjusted value, the first preset temperature threshold and the
Two preset temperature thresholds control the output frequency of frequency converter, can include：If currently Positive-Negative Action parameter is positive interaction parameter,
And the absolute value of the current difference for returning liquid temperature and set temperature value keeps the defeated of frequency converter no more than the second preset temperature threshold
It is constant to go out frequency, wherein, the first preset temperature threshold is more than the second preset temperature threshold.
Illustratively, the current Positive-Negative Action parameter of the frequency converter of acquisition is positive interaction parameter, set temperature value is 25 DEG C,
Second preset temperature threshold is 2 DEG C, and the current output frequency of frequency converter is 24Hz.
Assuming that collected liquid temperature of currently returning is 26 DEG C, the current difference for returning 25 DEG C of 26 DEG C of liquid temperature and set temperature value
1 DEG C of absolute value is less than 2 DEG C of the second preset temperature threshold, then the output frequency for keeping frequency converter is constant, is also 24Hz.
Assuming that collected liquid temperature of currently returning is 24 DEG C, the current difference for returning 25 DEG C of 24 DEG C of liquid temperature and set temperature value
The absolute value of -1 DEG C of value is less than 2 DEG C of the second preset temperature threshold, then the output frequency for keeping frequency converter is constant, is also 24Hz.
In one embodiment of the invention, according to current Positive-Negative Action parameter, currently return liquid temperature, set temperature value,
Current output frequency, maximum output frequency, minimum output frequency, predeterminated frequency adjusted value, the first preset temperature threshold and the
Two preset temperature thresholds control the output frequency of frequency converter, can include：If currently Positive-Negative Action parameter is positive interaction parameter,
And the absolute value of the current difference for returning liquid temperature and set temperature value is less than the first preset temperature threshold and absolute value is more than second
Preset temperature threshold and currently time liquid temperature are more than set temperature value, and current output frequency and the predeterminated frequency of frequency converter adjust
The difference of value is less than minimum output frequency, and the output frequency for adjusting frequency converter is minimum output frequency；Current output frequency is with presetting
The difference of frequency adjusted value is not less than minimum output frequency, and the output frequency for adjusting frequency converter is current output frequency and predeterminated frequency
The difference of adjusted value.
Illustratively, the current Positive-Negative Action parameter of the frequency converter of acquisition is positive interaction parameter, the maximum output of frequency converter
Frequency is 50Hz, predeterminated frequency adjusted value is 3Hz, the first preset temperature threshold is 5 DEG C, the second preset temperature threshold is 2 DEG C, sets
Constant temperature angle value is 25 DEG C.
Assuming that the current output frequency of frequency converter is 22Hz, collected liquid temperature of currently returning is 29 DEG C, liquid temperature is currently returned
29 DEG C of degree and the absolute value of 4 DEG C of the difference of 25 DEG C of set temperature value are less than 5 DEG C of the first preset temperature threshold, default more than second warm
29 DEG C of 2 DEG C of threshold value of degree and currently time liquid temperature is more than 25 DEG C of set temperature value, and the current output frequency 22Hz of frequency converter is with presetting
The difference 19Hz of frequency adjusted value 3Hz is more than minimum output frequency 10Hz, and the output frequency for adjusting frequency converter is 19Hz.
Assuming that the current output frequency of frequency converter is 12Hz, collected liquid temperature of currently returning is 29 DEG C, liquid temperature is currently returned
29 DEG C of degree and the absolute value of 4 DEG C of the difference of 25 DEG C of set temperature value are less than 5 DEG C of the first preset temperature threshold, default more than second warm
29 DEG C of 2 DEG C of threshold value of degree and currently time liquid temperature is more than 25 DEG C of set temperature value, and the current output frequency 12Hz of frequency converter is with presetting
The difference 9Hz of frequency adjusted value 3Hz is less than minimum output frequency 10Hz, and the output frequency for adjusting frequency converter is 10Hz.
In one embodiment of the invention, according to current Positive-Negative Action parameter, currently return liquid temperature, set temperature value,
Current output frequency, maximum output frequency, minimum output frequency, predeterminated frequency adjusted value, the first preset temperature threshold and the
Two preset temperature thresholds control the output frequency of frequency converter, can include：If currently Positive-Negative Action parameter is positive interaction parameter,
And the absolute value of the current difference for returning liquid temperature and set temperature value is less than the first preset temperature threshold and absolute value is more than second
Preset temperature threshold and currently time liquid temperature are less than set temperature value, and current output frequency and the predeterminated frequency of frequency converter adjust
The sum of value is more than maximum output frequency, and the output frequency for adjusting frequency converter is maximum output frequency；Current output frequency is with presetting
The sum of frequency adjusted value is not more than maximum output frequency, and the output frequency for adjusting frequency converter is current output frequency and predeterminated frequency
The sum of adjusted value.
Illustratively, the current Positive-Negative Action parameter of the frequency converter of acquisition is positive interaction parameter, the maximum output of frequency converter
Frequency is 50Hz, predeterminated frequency adjusted value is 3Hz, the first preset temperature threshold is 5 DEG C, the second preset temperature threshold is 2 DEG C, sets
Constant temperature angle value is 25 DEG C.
Assuming that the current output frequency of frequency converter is 22Hz, collected liquid temperature of currently returning is 21 DEG C, liquid temperature is currently returned
21 DEG C of degree and the absolute value of -4 DEG C of the difference of 25 DEG C of set temperature value are less than 5 DEG C of the first preset temperature threshold, are preset more than second
2 DEG C of temperature threshold and currently return 21 DEG C of liquid temperature and be less than 25 DEG C of set temperature value, the current output frequency 22Hz of frequency converter with it is pre-
If the sum of frequency adjusted value 3Hz 25Hz are less than maximum output frequency 50Hz, the output frequency for adjusting frequency converter is 25Hz.
Assuming that the current output frequency of frequency converter is 48Hz, collected liquid temperature of currently returning is 21 DEG C, liquid temperature is currently returned
21 DEG C of degree and the absolute value of -4 DEG C of the difference of 25 DEG C of set temperature value are less than 5 DEG C of the first preset temperature threshold, are preset more than second
2 DEG C of temperature threshold and currently return 21 DEG C of liquid temperature and be less than 25 DEG C of set temperature value, the current output frequency 48Hz of frequency converter with it is pre-
If the sum of frequency adjusted value 3Hz 51Hz are more than maximum output frequency 50Hz, the output frequency for adjusting frequency converter is 50Hz.
The air conditioner temperature controlling method of the embodiment of the present invention, the discontinuous output frequency for adjusting frequency converter, i.e., discontinuous tune
The working power frequency of the non-frequency motor of non-frequency pump is saved, the working power frequency of the non-frequency motor of non-frequency pump is not connected
It is continuous to adjust, the service life of non-frequency pump can be improved, and without additionally installing cooling system additional, cost can be reduced.
Corresponding with above-mentioned embodiment of the method, the embodiment of the present invention also provides a kind of control device for temperature of air conditioner.It needs
Illustrate, the control device for temperature of air conditioner of the embodiment of the present invention, be preferably applied to the liquid cold accumulation air-conditioner system for including non-frequency pump
System.
As shown in Fig. 2, the structure diagram Fig. 2 shows control device for temperature of air conditioner provided in an embodiment of the present invention.Its
It can include：
Acquisition module 201 currently returns liquid temperature for timing acquiring air-conditioning duct, wherein, liquid temperature is currently returned to work as
The preceding moment enters the temperature of the liquid of the heat exchanger of liquid chilling air conditioning system.
Control module 202, for current Positive-Negative Action parameter of the basis with the corresponding frequency converter of non-frequency pump, liquid cold-storage
The set temperature value of air-conditioning system and currently time liquid temperature control the output frequency of frequency converter, to control liquid in air-conditioning duct
The temperature of body.
In one embodiment of the invention, control module 202 can include：
Obtaining unit, for obtaining the current Positive-Negative Action parameter of frequency converter, the current output frequency of frequency converter, frequency converter
Maximum output frequency, frequency converter minimum output frequency, set temperature value, predeterminated frequency adjusted value, the first preset temperature threshold
Value and the second preset temperature threshold, wherein, the first preset temperature threshold is more than the second preset temperature threshold；
Control unit, for according to current Positive-Negative Action parameter, currently time liquid temperature, set temperature value, current output frequency
Rate, maximum output frequency, minimum output frequency, predeterminated frequency adjusted value, the first preset temperature threshold and the second preset temperature
Threshold value controls the output frequency of frequency converter.
In one embodiment of the invention, control unit specifically can be used for：
If the difference that current Positive-Negative Action parameter is reaction parameter and currently returns liquid temperature and set temperature value is absolute
Value is not less than the first preset temperature threshold,
It currently returns liquid temperature and is more than set temperature value, adjust maximum output frequency of the output frequency for frequency converter of frequency converter
Rate；
It currently returns liquid temperature and is less than set temperature value, adjust minimum output frequency of the output frequency for frequency converter of frequency converter
Rate.
In one embodiment of the invention, control unit specifically can be used for：
If the difference that current Positive-Negative Action parameter is reaction parameter and currently returns liquid temperature and set temperature value is absolute
For value no more than the second preset temperature threshold, the output frequency for keeping frequency converter is constant.
In one embodiment of the invention, control unit specifically can be used for：
If the difference that current Positive-Negative Action parameter is reaction parameter and currently returns liquid temperature and set temperature value is absolute
Value is less than the first preset temperature threshold and absolute value is more than the second preset temperature threshold and currently time liquid temperature is more than setting temperature
Angle value,
The sum of current output frequency and predeterminated frequency adjusted value of frequency converter are not more than maximum output frequency, adjust frequency converter
Output frequency be the sum of current output frequency and predeterminated frequency adjusted value；
The sum of current output frequency and predeterminated frequency adjusted value are more than maximum output frequency, adjust the output frequency of frequency converter
For maximum output frequency.
In one embodiment of the invention, control unit specifically can be used for：
If the difference that current Positive-Negative Action parameter is reaction parameter and currently returns liquid temperature and set temperature value is absolute
Value is less than the first preset temperature threshold and absolute value is more than the second preset temperature threshold and currently time liquid temperature is less than setting temperature
Angle value,
The current output frequency of frequency converter and the difference of predeterminated frequency adjusted value are less than minimum output frequency, adjust frequency converter
Output frequency is minimum output frequency；
The difference of current output frequency and predeterminated frequency adjusted value is not less than minimum output frequency, adjusts the output frequency of frequency converter
Difference of the rate for current output frequency and predeterminated frequency adjusted value.
In one embodiment of the invention, control unit specifically can be used for：
If the difference that current Positive-Negative Action parameter is positive interaction parameter and currently returns liquid temperature and set temperature value is absolute
Value is not less than the first preset temperature threshold,
It currently returns liquid temperature and is more than set temperature value, adjust minimum output frequency of the output frequency for frequency converter of frequency converter
Rate；
It currently returns liquid temperature and is less than set temperature value, adjust maximum output frequency of the output frequency for frequency converter of frequency converter
Rate.
In one embodiment of the invention, control unit specifically can be used for：
If the difference that current Positive-Negative Action parameter is positive interaction parameter and currently returns liquid temperature and set temperature value is absolute
For value no more than the second preset temperature threshold, the output frequency for keeping frequency converter is constant.
In one embodiment of the invention, control unit specifically can be used for：
If the difference that current Positive-Negative Action parameter is positive interaction parameter and currently returns liquid temperature and set temperature value is absolute
Value is less than the first preset temperature threshold and absolute value is more than the second preset temperature threshold and currently time liquid temperature is more than setting temperature
Angle value,
The current output frequency of frequency converter and the difference of predeterminated frequency adjusted value are less than minimum output frequency, adjust frequency converter
Output frequency is minimum output frequency；
The difference of current output frequency and predeterminated frequency adjusted value is not less than minimum output frequency, adjusts the output frequency of frequency converter
Difference of the rate for current output frequency and predeterminated frequency adjusted value.
In one embodiment of the invention, control unit specifically can be used for：
If the difference that current Positive-Negative Action parameter is positive interaction parameter and currently returns liquid temperature and set temperature value is absolute
Value is less than the first preset temperature threshold and absolute value is more than the second preset temperature threshold and currently time liquid temperature is less than setting temperature
Angle value,
The sum of current output frequency and predeterminated frequency adjusted value of frequency converter are more than maximum output frequency, adjust frequency converter
Output frequency is maximum output frequency；
The sum of current output frequency and predeterminated frequency adjusted value are not more than maximum output frequency, adjust the output frequency of frequency converter
Rate is the sum of current output frequency and predeterminated frequency adjusted value.
Control device for temperature of air conditioner according to embodiments of the present invention, the discontinuous output frequency for adjusting frequency converter, i.e., non-company
The working power frequency of the continuous non-frequency motor for adjusting non-frequency pump, not to the working power frequency of the non-frequency motor of non-frequency pump
Rate continuously adjusts, and can improve the service life of non-frequency pump, and without additionally installing cooling system additional, can reduce cost.
In addition, the embodiment of the present invention also provides a kind of liquid chilling air conditioning system, including：Non-frequency pump, frequency converter, heat exchange
Device and control device for temperature of air conditioner provided in an embodiment of the present invention.As shown in figure 3, Fig. 3 shows carrying for the embodiment of the present invention
The first structure diagram of the liquid chilling air conditioning system of confession.
Control device for temperature of air conditioner 301, timing acquiring current time enter the heat exchanger 302 of liquid chilling air conditioning system
The temperature of liquid；According to current Positive-Negative Action parameter, the liquid cold accumulation air-conditioner system that 303 corresponding frequency converters 304 are pumped with non-frequency
The set temperature value of system and collected temperature control the output frequency of frequency converter 304, to control liquid in air-conditioning duct
Temperature.
Liquid chilling air conditioning system according to embodiments of the present invention, the discontinuous output frequency for adjusting frequency converter, i.e., non-company
The working power frequency of the continuous non-frequency motor for adjusting non-frequency pump, not to the working power frequency of the non-frequency motor of non-frequency pump
Rate continuously adjusts, and can improve the service life of non-frequency pump, and without additionally installing cooling system additional, can reduce cost.
It is understood that the liquid in the embodiment of the present invention can be water, can also be other fluids in addition to water.
Fig. 4 shows second of structure diagram of liquid chilling air conditioning system provided in an embodiment of the present invention.The present invention
On the basis of embodiment illustrated in fig. 4 embodiment shown in Fig. 3, increase：First controller 305, second controller 306, source master
Machine 307, source host 307 ground source valve 308 and air-conditioning side valve door 309, source circulating pump 310, air-conditioning side circulating pump
311st, single-pole single-throw switch (SPST) 312, single-pole double-throw switch (SPDT) 313 and emergency cut-off button 314, wherein,
First controller 305 respectively with ground source valve 308, air-conditioning side valve door 309, source circulating pump 310 and air-conditioning
Side circulating pump 311 connects；
One end of single-pole single-throw switch (SPST) 312 is connect with second controller 306, the other end respectively with ground source valve 308, empty
Adjust side valve door 309, source circulating pump 310 and air-conditioning side circulating pump 311 connect；
The first moved end and the second moved end of single-pole double-throw switch (SPDT) 313 respectively with the first controller 305 and second controller 306
Connection, the non-moving end of single-pole double-throw switch (SPDT) 313 are connect with ground source host 307；
Emergency cut-off button 314 is connect respectively with single-pole single-throw switch (SPST) 312 and single-pole double-throw switch (SPDT) 313.
It should be noted that single-pole single-throw switch (SPST) 312 is normally closed, the first moved end of single-pole double-throw switch (SPDT) 313 is normally opened, second dynamic
It holds normally closed.
When not pressing emergency cut-off button 314, ground source valve 308, air-conditioning side valve door 309, source circulating pump 310
It had not only been controlled with air-conditioning side circulating pump 311 by the first controller 305, but also controlled by second controller 306.Ground source host 307 only by
Second controller 306 controls.
When pressing emergency cut-off button 314, single-pole single-throw switch (SPST) 312 disconnects, and the first moved end of single-pole double-throw switch (SPDT) 313 is closed
Close, the second moved end disconnect, at this point, ground source valve 308, air-conditioning side valve door 309, source circulating pump 310, air-conditioning side circulating pump
311 are only controlled with ground source host 307 by the first controller 305.
In one embodiment of the invention, the first controller 305 of shielding and second controller 306 be may be provided for
It is sent to the shielding button of the control signal of ground source circulating pump 310 and air-conditioning side circulating pump 311.When pressing the shielding button
Afterwards, ground source circulating pump 310 and air-conditioning side circulating pump 311 cannot receive the control of the first controller 305 and second controller 306
Signal processed.
In one embodiment of the invention, non-frequency pump 303 in air-conditioning side valve door 309 for ground source host 307 with entering
The valve of water is connected by air-conditioning duct；Heat exchanger passes through with being used for the valve that ground source host 307 is discharged in air-conditioning side valve door 309
Air-conditioning duct connects；The water outlet of air-conditioning side circulating pump 311 and the valve for entering water in air-conditioning side valve door 309 for ground source host 307
Door is connected by air-conditioning duct；The water inlet of air-conditioning side circulating pump 311 is connect with air-conditioning side circulation by air-conditioning duct；
The water outlet of ground source circulating pump 310 passes through air-conditioning duct with entering the valve of water in ground source valve 308 for ground source host 307
Connection；The water inlet of ground source circulating pump 310 is connect with ground source circulation by air-conditioning duct.
In one embodiment of the invention, can there is no single-pole single-throw switch (SPST) 312 and single-pole double-throw switch (SPDT) 313.First
Controller 305 and second controller 306 can respectively with ground source host 307, source valve 308, air-conditioning side valve door 309,
Source circulating pump 310, air-conditioning side circulating pump 311 and connection.Emergency cut-off button 314 is connect with second controller 306, and urgent
Split key 314 (is connect for the object of process control with embedded, Object Linking with second controller 306 by OPC
And Embedding (OLE) for Process Control) technology communicated.
Second controller 306 for control ground source valve 308, air-conditioning side valve door 309,310 and of source circulating pump
The control signal of air-conditioning side circulating pump 311 is connected, then the use with the 305 of the first controller with the signal of emergency cut-off button 314
In control ground source valve 308, air-conditioning side valve door 309, source circulating pump 310 and air-conditioning side circulating pump 311 control signal
Parallel connection, wherein, emergency cut-off button is normally closed signal.
The control signal of for controlling the source host 307 of second controller 306 and the signal of emergency cut-off button 314 are simultaneously
Connection, then with the 305 of the first controller for the control signal of ground source host 307 to be controlled to connect, wherein, emergency cut-off button
It is opened point signal.
When not pressing emergency cut-off button 314, ground source valve 308, air-conditioning side valve door 309, source circulating pump 310
It had not only been controlled with air-conditioning side circulating pump 311 by the first controller 305, but also controlled by second controller 306.Ground source host 307 only by
Second controller 306 controls.
When pressing emergency cut-off button 314, ground source valve 308, air-conditioning side valve door 309, source circulating pump 310,
Air-conditioning side circulating pump 311 and ground source host 307 are only controlled by the first controller 305.
It is understood that the ground source host of the embodiment of the present invention, source valve, air-conditioning side valve door, source cycle
Pump and air-conditioning side circulating pump all can be multiple.
It should be clear that the invention is not limited in specific configuration described above and shown in figure and processing.
For brevity, it is omitted here the detailed description to known method.In the above-described embodiments, several tools have been described and illustrated
The step of body, is as example.But procedure of the invention is not limited to described and illustrated specific steps, this field
Technical staff can be variously modified, modification and addition or suitable between changing the step after the spirit for understanding the present invention
Sequence.
Structures described above frame functional block shown in figure can be implemented as hardware, software, firmware or their group
It closes.When realizing in hardware, it may, for example, be electronic circuit, application-specific integrated circuit (ASIC), appropriate firmware, insert
Part, function card etc..When being realized with software mode, element of the invention is used to perform program or the generation of required task
Code section.Either code segment can be stored in machine readable media program or the data-signal by being carried in carrier wave is passing
Defeated medium or communication links are sent." machine readable media " can include being capable of any medium of storage or transmission information.
The example of machine readable media includes electronic circuit, semiconductor memory devices, ROM, flash memory, erasable ROM (EROM), soft
Disk, CD-ROM, CD, hard disk, fiber medium, radio frequency (RF) link, etc..Code segment can be via such as internet, inline
The computer network of net etc. is downloaded.
It should also be noted that, the exemplary embodiment referred in the present invention, is retouched based on a series of step or device
State certain methods or system.But the present invention is not limited to the sequence of above-mentioned steps, that is to say, that can be according in embodiment
The sequence referred to performs step, may also be distinct from that the sequence in embodiment or several steps are performed simultaneously.
The above description is merely a specific embodiment, it is apparent to those skilled in the art that,
For convenience of description and succinctly, the specific work process of the system of foregoing description, module and unit can refer to preceding method
Corresponding process in embodiment, details are not described herein.It should be understood that protection scope of the present invention is not limited thereto, it is any to be familiar with
Those skilled in the art in the technical scope disclosed by the present invention, can readily occur in various equivalent modifications or substitutions,
These modifications or substitutions should be covered by the protection scope of the present invention.
Claims (14)
1. a kind of control device for temperature of air conditioner, which is characterized in that applied to the liquid chilling air conditioning system pumped including non-frequency, institute
Device is stated to include：
Acquisition module currently returns liquid temperature for the air-conditioning duct of liquid chilling air conditioning system described in timing acquiring, wherein, institute
State the current temperature for returning liquid temperature as liquid of the current time into the heat exchanger of the liquid chilling air conditioning system；
Control module, for current Positive-Negative Action parameter of the basis with the corresponding frequency converter of non-frequency pump, liquid storage
The set temperature value of cold air conditioning system and the output frequency for currently returning liquid temperature, controlling the frequency converter, to control
State the temperature of liquid in air-conditioning duct.
2. the apparatus according to claim 1, which is characterized in that the control module, including：
Obtaining unit, for obtaining the current Positive-Negative Action parameter of the frequency converter, the current output frequency of the frequency converter, institute
State the maximum output frequency of frequency converter, the minimum output frequency of the frequency converter, the set temperature value, predeterminated frequency adjustment
Value, the first preset temperature threshold and the second preset temperature threshold, wherein, first preset temperature threshold is more than described second
Preset temperature threshold；
Control unit, for according to the current Positive-Negative Action parameter, currently time liquid temperature, the set temperature value, the institute
State current output frequency, the maximum output frequency, the minimum output frequency, the predeterminated frequency adjusted value, described first
Preset temperature threshold and second preset temperature threshold control the output frequency of the frequency converter.
3. the apparatus of claim 2, which is characterized in that described control unit is specifically used for：
If the current Positive-Negative Action parameter is reaction parameter and the current difference for returning liquid temperature and the set temperature value
The absolute value of value is not less than first preset temperature threshold,
The liquid temperature of currently returning is more than the set temperature value, and the output frequency for adjusting the frequency converter is the maximum output
Frequency；
The liquid temperature of currently returning is less than the set temperature value, and the output frequency for adjusting the frequency converter is exported for the minimum
Frequency.
4. the apparatus of claim 2, which is characterized in that described control unit is specifically used for：
If the current Positive-Negative Action parameter is reaction parameter and the current difference for returning liquid temperature and the set temperature value
The absolute value of value is not more than second preset temperature threshold, and the output frequency for keeping the frequency converter is constant.
5. the apparatus of claim 2, which is characterized in that described control unit is specifically used for：
If the current Positive-Negative Action parameter is reaction parameter and the current difference for returning liquid temperature and the set temperature value
The absolute value of value is less than first preset temperature threshold and the absolute value is more than second preset temperature threshold and institute
It states currently time liquid temperature and is more than the set temperature value,
The sum of the current output frequency and predeterminated frequency adjusted value are not more than the maximum output frequency, adjust the frequency converter
Output frequency be the sum of the current output frequency and the predeterminated frequency adjusted value；
The sum of the current output frequency and the predeterminated frequency adjusted value are more than the maximum output frequency, adjust the frequency conversion
The output frequency of device is the maximum output frequency.
6. the apparatus of claim 2, which is characterized in that described control unit is specifically used for：
If the current Positive-Negative Action parameter is reaction parameter and the current difference for returning liquid temperature and the set temperature value
The absolute value of value is less than first preset temperature threshold and the absolute value is more than second preset temperature threshold and institute
It states currently time liquid temperature and is less than the set temperature value,
The difference of the current output frequency and predeterminated frequency adjusted value is less than the minimum output frequency, adjusts the frequency converter
Output frequency is the minimum output frequency；
The difference of the current output frequency and the predeterminated frequency adjusted value adjusts the change not less than the minimum output frequency
Difference of the output frequency of frequency device for the current output frequency and the predeterminated frequency adjusted value.
7. the apparatus of claim 2, which is characterized in that described control unit is specifically used for：
If the current Positive-Negative Action parameter is positive interaction parameter and the current difference for returning liquid temperature and the set temperature value
The absolute value of value is not less than first preset temperature threshold,
The liquid temperature of currently returning is more than the set temperature value, and the output frequency for adjusting the frequency converter is exported for the minimum
Frequency；
The liquid temperature of currently returning is less than the set temperature value, and the output frequency for adjusting the frequency converter is the maximum output
Frequency.
8. the apparatus of claim 2, which is characterized in that described control unit is specifically used for：
If the current Positive-Negative Action parameter is positive interaction parameter and the current difference for returning liquid temperature and the set temperature value
The absolute value of value is not more than second preset temperature threshold, and the output frequency for keeping the frequency converter is constant.
9. the apparatus of claim 2, which is characterized in that described control unit is specifically used for：
If the current Positive-Negative Action parameter is positive interaction parameter and the current difference for returning liquid temperature and the set temperature value
The absolute value of value is less than first preset temperature threshold and the absolute value is more than second preset temperature threshold and institute
It states currently time liquid temperature and is more than the set temperature value,
The difference of the current output frequency and predeterminated frequency adjusted value is less than the minimum output frequency, adjusts the frequency converter
Output frequency is the minimum output frequency；
The difference of the current output frequency and the predeterminated frequency adjusted value adjusts the change not less than the minimum output frequency
Difference of the output frequency of frequency device for the current output frequency and the predeterminated frequency adjusted value.
10. the apparatus of claim 2, which is characterized in that described control unit is specifically used for：
If the current Positive-Negative Action parameter is positive interaction parameter and the current difference for returning liquid temperature and the set temperature value
The absolute value of value is less than first preset temperature threshold and the absolute value is more than second preset temperature threshold and institute
It states currently time liquid temperature and is less than the set temperature value,
The sum of the current output frequency and the predeterminated frequency adjusted value are more than the maximum output frequency, adjust the frequency conversion
The output frequency of device is the maximum output frequency；
The sum of the current output frequency and the predeterminated frequency adjusted value are not more than the maximum output frequency, adjust the change
The output frequency of frequency device is the sum of the current output frequency and the predeterminated frequency adjusted value.
11. a kind of liquid chilling air conditioning system, which is characterized in that the system comprises：Non-frequency pump, frequency converter, heat exchanger with
And claim 1-10 any one of them control device for temperature of air conditioner.
12. system according to claim 11, which is characterized in that the system also includes：
First controller, second controller, source host, the ground source valve of described ground source host and air-conditioning side valve door, source
Side circulating pump, air-conditioning side circulating pump, single-pole single-throw switch (SPST), single-pole double-throw switch (SPDT) and emergency cut-off button, wherein,
First controller respectively with described ground source valve, the air-conditioning side valve door, described ground source circulating pump and described
The circulating pump connection of air-conditioning side；
One end of the single-pole single-throw switch (SPST) is connect with the second controller, the other end respectively with described ground source valve, institute
State air-conditioning side valve door, described ground source circulating pump is connected with air-conditioning side circulating pump；
The first moved end and the second moved end of the single-pole double-throw switch (SPDT) respectively with first controller and the second controller
Connection, the non-moving end of the single-pole double-throw switch (SPDT) is connect with described ground source host；
The emergency cut-off button is connect respectively with the single-pole single-throw switch (SPST) and the single-pole double-throw switch (SPDT).
13. system according to claim 11, which is characterized in that the system also includes：
First controller, second controller, source host, the ground source valve of described ground source host and air-conditioning side valve door, source
Side circulating pump, air-conditioning side circulating pump and emergency cut-off button, wherein,
First controller and the second controller respectively with described ground source host, described ground source valve, the air-conditioning
Side valve door, described ground source circulating pump are connected with air-conditioning side circulating pump；
The emergency cut-off button and the second controller are connected and embedded OPC communications skill by being used for the object of process control
Art communication connection.
14. a kind of air conditioner temperature controlling method, which is characterized in that applied to the liquid chilling air conditioning system pumped including non-frequency,
The method includes：
The air-conditioning duct of liquid chilling air conditioning system described in timing acquiring currently returns liquid temperature, wherein, it is described currently to return liquid temperature
Spend the temperature of the liquid for the heat exchanger for entering the liquid chilling air conditioning system for current time；
According to the corresponding frequency converter of non-frequency pump current Positive-Negative Action parameter, the liquid chilling air conditioning system sets
Constant temperature angle value and the output frequency for currently returning liquid temperature, controlling the frequency converter, to control liquid in the air-conditioning duct
The temperature of body.
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