CN116928818B - A dehumidification device - Google Patents
A dehumidification deviceInfo
- Publication number
- CN116928818B CN116928818B CN202210346708.7A CN202210346708A CN116928818B CN 116928818 B CN116928818 B CN 116928818B CN 202210346708 A CN202210346708 A CN 202210346708A CN 116928818 B CN116928818 B CN 116928818B
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- Prior art keywords
- air
- reversing device
- outdoor
- heat exchange
- exchange cavity
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
- F24F11/67—Switching between heating and cooling modes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
- F24F7/08—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Drying Of Gases (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a dehumidifying device, which comprises a shell, heat exchangers, a compressor, a reversing device, an outdoor temperature detection module and a control module, wherein the heat exchangers comprise a first heat exchanger and a second heat exchanger, the compressor is respectively connected with the two heat exchangers through a four-way valve to form a refrigerant circulation flow path, the reversing device comprises a first reversing device and a second reversing device, the first reversing device is provided with four connectors, the second reversing device is provided with four connectors, the outdoor temperature detection module is used for detecting outdoor temperature, the outdoor humidity detection module is used for detecting outdoor relative humidity, and the control module is configured to control the communication state among the four connectors of each reversing device and/or control a refrigerant circulation system to operate for dehumidifying when the outdoor temperature and the outdoor relative humidity meet opening conditions. According to the dehumidifying device, through controlling the communication state among the four connectors of each reversing device, the dehumidifying and heating functions of indoor air can be achieved, the cold air feeling is reduced, and the user experience is improved.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to a dehumidifying device.
Background
With the improvement of living standard, people pay more attention to the quality of indoor environment, and air needs to be regulated. Air conditioning, including temperature and humidity conditioning, and air quality and comfort are increasingly being appreciated by every household and business, office setting of all types.
In some areas, the phenomenon of returning to the south occurs in the alternate seasons of winter and spring, the outdoor temperature is between 0 and 15 ℃ and the relative humidity is more than 80%, if the traditional cooling dehumidification method is adopted, the temperature of the treated fresh air is very low and even lower than 10 ℃, strong cold air feel exists, on the other hand, the air temperature is low, the moisture in the air can be condensed and treated only by the low evaporation temperature, and in order to solve the problem, the problem of energy waste caused by cold and hot offset can be caused by adopting a reheating mode, such as electric heating, a heating coil pipe and the like.
Disclosure of Invention
In order to solve the technical problems that the dehumidifying device in the prior art can cause low indoor air supply temperature and has cold air feeling, a dehumidifying device is provided, and the problems can be solved.
In order to achieve the above purpose, the dehumidifying device of the present invention adopts the following technical scheme:
the present invention provides a dehumidifying apparatus, comprising:
An outer shell body, wherein an outdoor air inlet, an outdoor air outlet, an indoor air supply outlet and an indoor air return outlet are formed on the outer shell body, and a first heat exchange cavity and a second heat exchange cavity are formed in the outer shell body;
the heat exchanger comprises a first heat exchanger arranged in the first heat exchange cavity and a second heat exchanger arranged in the second heat exchange cavity;
the compressors are respectively connected with the two heat exchangers through four-way valves to form a refrigerant circulation flow path;
the reversing device comprises a first reversing device and a second reversing device, the first reversing device is provided with four connecting ports which are respectively and correspondingly connected with the outdoor air outlet, the indoor air supply port, the first heat exchange cavity and the second heat exchange cavity, and the second reversing device is provided with four connecting ports which are respectively and correspondingly connected with the outdoor air inlet, the indoor air return port, the first heat exchange cavity and the second heat exchange cavity;
an outdoor temperature detection module for detecting an outdoor temperature;
An outdoor humidity detection module for detecting an outdoor relative humidity;
and the control module is configured to control the communication state among the four ports of each reversing device and/or control the operation of the refrigerant circulation system to dehumidify when the outdoor temperature and the outdoor relative humidity meet the opening conditions.
In some embodiments of the invention, the dehumidifying apparatus further comprises:
the absorption parts are arranged in the first heat exchange cavity and the second heat exchange cavity and are used for absorbing or releasing moisture;
The exhaust fan is arranged at the outdoor exhaust port;
a blower provided at the indoor air supply port;
when the control module controls dehumidification, four connectors of the first reversing device are controlled to be communicated with each other, the second reversing device is controlled to respectively connect the outdoor air inlet and the indoor air return with the first heat exchange cavity and the second heat exchange cavity in a one-to-one correspondence manner, and the operation of the refrigerant circulation system is controlled;
The evaporator is located in the heat exchange cavity communicated with the outdoor air inlet, and the heat exchanger in the heat exchange cavity communicated with the indoor air return inlet is a condenser.
The dehumidifying apparatus further includes:
the two water receiving discs are respectively arranged below the first heat exchanger and the second heat exchanger;
The water receiving disc is provided with a water level detection module, the control obtains the water level of the water receiving disc corresponding to the evaporator, and when the water level reaches a set value, the second reversing device is controlled to perform reversing, and the refrigerant flow direction of the refrigerant circulation system is controlled to be reversed.
The dehumidifying apparatus further includes:
and the method further comprises the steps of detecting whether the adsorption piece corresponding to the evaporator is saturated, and controlling the second reversing device to reverse when the adsorption piece corresponding to the evaporator is saturated and the water level of the water receiving disc corresponding to the evaporator reaches a set value, and controlling the refrigerant flow direction of the refrigerant circulating system to reverse.
The dehumidifying apparatus further includes:
the air supply temperature detection module is used for detecting the air supply temperature of the indoor air supply opening;
After dehumidification is started, the method for judging whether the evaporator is positioned in the heat exchange cavity communicated with the outdoor air inlet comprises the following steps:
After the compressor is started, comparing the air supply temperature with the outdoor temperature, and judging that the evaporator is positioned in the heat exchange cavity communicated with the outdoor air inlet when the air supply temperature is lower than the outdoor temperature, otherwise, judging that the evaporator is not positioned in the heat exchange cavity communicated with the outdoor air inlet, and regulating the second reversing device to perform reversing or controlling the four-way valve to switch on.
The dehumidifying apparatus further includes:
an air valve provided in the outdoor air outlet;
The air supply temperature detection module is used for detecting the air supply temperature of the indoor air supply port;
The control module further comprises a dehumidification mode determining module, and the communication state among the four ports of each reversing device and/or the operation of a refrigerant circulation system are controlled according to the dehumidification mode;
the dehumidification mode includes:
a no-exhaust reheating dehumidification mode, wherein the air valve is controlled not to be opened in the mode;
there is a reheat dehumidification mode of exhaust air, which controls the opening of the damper.
The dehumidifying apparatus further includes:
When the dehumidification mode is a reheat dehumidification mode without exhaust air, the control module further comprises a control fan for controlling the opening of the fan and adjusting the air quantity of the fan according to the air supply temperature.
The dehumidifying apparatus further includes:
the control module further comprises a step of acquiring set fresh air quantity and determining a dehumidification mode according to the set fresh air quantity;
When the set fresh air quantity is in a low grade, executing the reheating dehumidifying die without exhaust air;
and executing the exhaust reheating dehumidification mode when the set fresh air quantity is in a high grade.
The dehumidifying apparatus further includes:
when the dehumidification mode is an exhaust reheating dehumidification mode, the method further comprises the step of controlling the exhaust fan to be started, and the air quantity of the exhaust fan and the air quantity of the blower are adjusted according to the air supply temperature.
The dehumidifying apparatus further includes:
When the dehumidification mode is an exhaust reheating dehumidification mode, the method for adjusting the air quantity Qea of the exhaust fan and the air quantity Qsa of the blower comprises the following steps:
Qsa= Qoa +β* Qra;
Qea=(1-β)* Qra;
Qra is the return air quantity, beta is the regulating factor, and beta is increased when the air supply temperature is lower than the set temperature.
Compared with the prior art, the technical scheme of the invention has the following technical effects:
According to the dehumidifying device, the two reversing devices are arranged, and through controlling the communication state among the four connectors of each reversing device, the dehumidifying and heating functions of the indoor air can be realized, the cold air feeling is reduced, and the user experience is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a dehumidifying apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating a connection of a refrigerant circulation system in an embodiment of a dehumidifying apparatus according to the present invention;
FIG. 3 is a schematic view of a second reversing device in an embodiment of the dehumidifying device according to the present invention;
FIG. 4 is a schematic view of the back structure of FIG. 3;
FIG. 5 is a schematic view of another construction of a second reversing device of the dehumidifying device according to the present invention;
fig. 6 is a schematic view of the internal structure of fig. 5 in two states, respectively;
FIG. 7 is a schematic view of the internal structure of FIG. 5 in another state;
FIG. 8 is a control logic diagram of the dehumidification device of the present invention in a reheat dehumidification mode without exhaust air;
FIG. 9 is a schematic view of the air duct path of state 1 in the reheat dehumidification mode without exhaust air of the dehumidification device of the present disclosure;
FIG. 10 is a schematic view of the air duct path of state 2 in the reheat dehumidification mode without exhaust air of the dehumidification device of the present disclosure;
FIG. 11 is a control logic diagram of the dehumidification device of the present invention in reheat dehumidification mode with exhaust air;
FIG. 12 is a schematic view of the path of the air duct in state 1 of the dehumidification device with the reheat dehumidification mode of exhaust air;
Fig. 13 is a schematic view of the air duct path in state 2 of the dehumidifying apparatus according to the present invention in the reheat dehumidification mode with exhaust air.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that the terms "mounted," "connected," and "coupled" are to be construed broadly, as well as, for example, fixedly coupled, detachably coupled, or integrally coupled, unless otherwise specifically indicated and defined. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art. In the description of the above embodiments, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
Example 1
The embodiment provides a dehumidifying device, as shown in fig. 1, comprising an outer housing 10, on which an outdoor air inlet OA, an outdoor air outlet EA, an indoor air supply SA and an indoor air return RA are formed, wherein a first heat exchange cavity 11 and a second heat exchange cavity 12 are formed in the outer housing 10.
The air dehumidifying apparatus further comprises at least two heat exchangers, including a first heat exchanger 13 disposed in the first heat exchange chamber 11 and a second heat exchanger 14 disposed in the second heat exchange chamber 12.
As shown in fig. 2, the heat exchanger is sequentially connected through a refrigerant pipe compressor 40, a four-way valve 50 and an electronic expansion valve 60 to form a closed refrigerant circulation flow path, so as to realize the delivery of the refrigerant.
The air dehumidifying device of the embodiment further comprises two reversing devices, namely a first reversing device 20 and a second reversing device 30, wherein the first reversing device 20 is provided with four connectors, and the four connectors are respectively connected with the outdoor air outlet EA, the indoor air supply outlet SA, the first heat exchange cavity 11 and the second heat exchange cavity 12 correspondingly. The communication state among the four connection ports of the first reversing device 20 can be controlled and regulated according to the requirements.
The second reversing device 30 also has four connection ports, which are respectively connected with the outdoor air inlet OA, the indoor air return RA, the first heat exchange cavity 11 and the second heat exchange cavity 12 correspondingly. The communication state among the four connection ports of the second reversing device 30 can be controlled and regulated according to the requirements.
The first heat exchange chamber 11 and the second heat exchange chamber 12 may communicate with two tuyeres respectively connected thereto.
The dehumidifying device further comprises an outdoor temperature detection module and an outdoor humidity detection module (not shown in the figure), wherein the outdoor temperature detection module is used for detecting the outdoor temperature and sending the outdoor temperature to the control module. The outdoor humidity detection module is used for detecting outdoor relative humidity.
The control module of the dehumidifying device is configured to control the communication state among the four connectors of each reversing device and/or control the operation of the refrigerant circulating system to dehumidify when the outdoor temperature and the outdoor relative humidity meet the opening conditions.
In some embodiments of the present invention, determining whether conditions for entering dehumidification are satisfied is:
① The outdoor temperature is less than or equal to T1, and when the temperature is not more than T1, the higher the relative humidity is, the lower the temperature of the body is. T1 has a value ranging from 10 ℃ to 18 ℃.
② The outdoor relative humidity is more than or equal to M1, and the value range of M1 is 50% -80%.
And simultaneously, the two conditions are met, and then a reheating and dehumidifying mode in winter is entered.
The dehumidifying device of this embodiment sets up two reversing devices, through the communication state between four connectors of each reversing device of control, can realize simultaneously carrying out dehumidification and heating function for sending into indoor wind, reduces cold wind and feels, promotes user's use experience.
In some embodiments of the present invention, the dehumidifying device further includes an absorbing member, and the absorbing member is disposed in each of the first heat exchange chamber 11 and the second heat exchange chamber 12, so as to absorb moisture when the corresponding heat exchanger in the heat exchange chamber is an evaporator, thereby achieving the dehumidifying effect.
An exhaust fan 70 is provided at the outdoor exhaust port EA for drawing the air flow outside the indoor return air port RA into the heat exchange chamber communicated therewith.
An air blower 80 is provided at the indoor air supply port SA for driving an air flow in an air flow passage communicating with the indoor air supply port SA to be discharged from the indoor air supply port SA.
In some embodiments of the present invention, the indoor air supply port SA and the indoor air return port RA are respectively communicated with the indoor, and the outdoor air intake OA and the outdoor air discharge port EA are respectively communicated with the outdoor.
The refrigerant circulation system can realize the exchange of the refrigerating and heating functions of the two heat exchange cavities by changing the flow direction of the refrigerant, and simultaneously, the communication state between the respective connectors is controlled by matching the first reversing device 20 and the second reversing device 30 so as to realize that the air fed into the room through the indoor air supply port SA meets the dehumidification requirement.
The control module can control the four-way valve to change direction, wherein the first heat exchanger 13 is used as an evaporator, the second heat exchanger 14 is used as a condenser, or the first heat exchanger 13 is used as a condenser, and the second heat exchanger 14 is used as an evaporator.
The control module can also realize the switching of different air flow channels by controlling the connection states of the four connection ports of the first reversing device 20 and the second reversing device 30.
When the control module controls dehumidification, four connectors of the first reversing device are controlled to be communicated with each other, the second reversing device is controlled to be respectively connected with the outdoor air inlet OA and the indoor air return RA in one-to-one correspondence with the first heat exchange cavity 11 and the second heat exchange cavity 12, the operation of the refrigerant circulation system is controlled, the condition that the evaporator is located in the heat exchange cavity communicated with the outdoor air inlet is met, and the condition that the condenser is located in the heat exchange cavity communicated with the indoor air return is met.
The dehumidification principle of the dehumidification device is that outdoor fresh air enters a heat exchange cavity where an evaporator is located through an outdoor air inlet OA, when the fresh air passes through the evaporator, moisture in the fresh air is absorbed by a refrigerant in the evaporator, condensed water is absorbed by an adsorption piece in the heat exchange cavity, the purpose of removing the moisture in the fresh air is achieved, and the fresh air is fed into a room through an indoor air supply opening SA.
At this time, the indoor return air enters the heat exchange cavity where the condenser is located through the indoor return air inlet RA, when the return air passes through the condenser, the condenser heats the adsorption piece close to the condenser, part or all of hot air is mixed with the fresh air dehumidified outdoors in the first reversing device, the air supply temperature is increased, and the air is sent indoors through the indoor air supply inlet SA.
The dehumidification device further comprises two water receiving trays (not shown in the figures) arranged below the first heat exchanger 13 and the second heat exchanger 14, respectively.
The adsorption capacity of the adsorption piece is limited, when the adsorption capacity of the adsorption piece adjacent to the evaporator in the mode is reduced, namely the dehumidification capacity of the adsorption piece is reduced, the exchange of the adsorption piece through which fresh air and return air pass is realized by controlling the reversing device to exchange the heat exchange cavity communicated with the outdoor air outlet EA, and meanwhile, the refrigerant reversing is controlled, and the dehumidification device after the exchange still operates in the dehumidification mode, so that the dehumidification device continuously maintains the efficient dehumidification capacity.
The water receiving disc is provided with a water level detection module, the water level of the water receiving disc corresponding to the evaporator is controlled to be obtained, the second reversing device is controlled to perform reversing when the water level reaches a set value, and the refrigerant flow direction of the refrigerant circulation system is controlled to be reversed.
Because the absorbing part has certain capability of absorbing moisture, in order to avoid frequent reversing, the dehumidifying device also comprises a device for detecting whether the absorbing part corresponding to the evaporator is saturated or not, and when the saturation of the absorbing part corresponding to the evaporator and the water level of the water receiving disc corresponding to the evaporator reach set values, the second reversing device is controlled to perform reversing, and the refrigerant flow direction of the refrigerant circulating system is controlled to be reversed. That is, when the saturation of the absorption member and the water level of the water receiving tray corresponding to the evaporator reach the set value, the water absorption capacity and the water storage capacity in the heat exchange cavity where the evaporator is located reach the upper limit, and the reversing is controlled.
In some embodiments of the present invention, the dehumidifying apparatus further includes an air supply temperature detecting module for detecting an air supply temperature of the indoor air supply port.
After dehumidification is started, the method for judging whether the evaporator is positioned in the heat exchange cavity communicated with the outdoor air inlet comprises the following steps:
After the compressor is started, the air supply temperature is compared with the outdoor temperature, when the air supply temperature is lower than the outdoor temperature, the evaporator is judged to be positioned in the heat exchange cavity communicated with the outdoor air inlet, otherwise, the evaporator is judged to be not positioned in the heat exchange cavity communicated with the outdoor air inlet, and the second reversing device is regulated to perform reversing, or the four-way valve is controlled to switch on.
In some embodiments of the present invention, the dehumidifying apparatus further includes an air valve 90 and an air supply temperature detection module (not shown in the drawings), wherein the air valve 90 is disposed in the outdoor air outlet EA, and the air supply temperature detection module is used for detecting an air supply temperature of the indoor air supply outlet SA.
The control module further comprises a dehumidification mode determining module and is used for controlling the communication state among the four ports of each reversing device and/or controlling the operation of the refrigerant circulation system according to the dehumidification mode.
The dehumidification mode includes:
There is no exhaust reheat dehumidification mode in which the control damper 90 is not open.
There is a reheat dehumidification mode of exhaust air in which the damper 90 is controlled to open.
When the air exhaust reheating dehumidification mode is not adopted, the control air valve 90 is not opened, and the dehumidification principle of the dehumidification device is that outdoor fresh air enters a heat exchange cavity where the evaporator is located through an outdoor air inlet OA, when the fresh air passes through the evaporator, moisture in the fresh air is absorbed by a refrigerant in the evaporator, condensed into water is absorbed by an adsorption piece in the heat exchange cavity, the purpose of removing the moisture in the fresh air is achieved, and the fresh air is sent into a room through an indoor air supply opening SA.
At this time, the indoor return air enters the heat exchange cavity where the condenser is located through the indoor return air inlet RA, when the return air passes through the condenser, the condenser heats the adsorption piece close to the condenser, all hot air and the fresh air dehumidified outdoors are mixed in the first reversing device, and the mixture is sent to the room through the indoor air inlet SA.
When there is an exhaust reheating dehumidifying mode, the control air valve 90 is opened, part of hot air and the fresh air dehumidified outdoors are mixed in the first reversing device, and the mixture is sent to the room through the indoor air supply opening SA.
When the dehumidification mode is the reheating dehumidification mode without exhaust, the control module further comprises a control fan for controlling the opening of the fan and adjusting the air quantity of the fan according to the air supply temperature.
The method for adjusting the air quantity of the exhaust fan in the exhaust reheating and dehumidifying mode comprises the following steps:
starting an exhaust fan;
The exhaust fan runs at 50-100% of rated low-grade air quantity, and the air quantity of the exhaust fan is regulated according to the air supply temperature.
If the air supply temperature is lower, the exhaust fan is operated with a larger percentage of air quantity, and if the air supply temperature meets the requirement (for example, the air supply temperature is more than or equal to 18 ℃), the exhaust fan is operated with a lower percentage of air quantity.
In some embodiments of the present invention, the control module further includes obtaining a set fresh air volume, and determining a dehumidification mode according to the set fresh air volume.
When the set fresh air quantity is in a low gear, the reheat dehumidification mode without exhaust air is executed because the introduced fresh air quantity is smaller. No exhaust air can save energy.
When the set fresh air quantity is high-grade, the exhaust reheating dehumidification mode is executed because the introduced fresh air quantity is large. At this time, the air valve 90 is opened to prevent excessive indoor positive pressure, and to increase the air volume on the condenser side, thereby improving the dehumidification capability of the system.
In some embodiments of the present invention, when the dehumidification mode is an exhaust reheat dehumidification mode, the method further includes controlling the exhaust fan to be turned on, and adjusting the air volume of the exhaust fan and the air volume of the blower according to the air supply temperature.
In some embodiments of the present invention, when the dehumidification mode is the exhaust reheat dehumidification mode, the method for adjusting the air volume Qea of the exhaust fan and the air volume Qsa of the blower is as follows:
Qsa= Qoa +β* Qra;
Qea=(1-β)* Qra;
Qra is the return air quantity, beta is the regulating factor, and beta is increased when the air supply temperature is lower than the set temperature.
Example two
There are various implementations of the reversing device, and the first reversing device 20 is taken as an example in this embodiment.
As shown in fig. 3 and 4, the four connection ports of the first reversing device 20 are a first connection port 201, a second connection port 202, a third connection port 203, and a fourth connection port 204, respectively, which are respectively communicated with the valve chamber of the first reversing device 20. The four connectors are respectively connected with an outdoor air outlet EA, an indoor air supply outlet SA, a first heat exchange cavity 11 and a second heat exchange cavity 12 correspondingly.
The blocking part can be realized by a valve plate 205, and the driving device 206 is controlled by the control module and is used for driving the valve plate 205 to rotate.
When the valve plate 205 rotates to different positions, the four connecting ports can be correspondingly communicated.
The four connection ports of the second reversing device 30 are a first connection port 301, a second connection port 302, a third connection port 303 and a fourth connection port 304, respectively, and the four connection ports are respectively communicated with the valve cavity of the second reversing device 30. The four connectors are respectively and correspondingly connected with the outdoor air inlet OA, the indoor air return RA, the first heat exchange cavity 11 and the second heat exchange cavity 12.
In the present embodiment, a specific connection method is provided, but is not limited to one in the present embodiment.
The first connection port 201 of the first reversing device is connected with the indoor air supply port SA, the fourth connection port 204 of the first reversing device is connected with the outdoor air outlet EA, the second connection port 202 of the first reversing device is communicated with the second heat exchange cavity 12, and the third connection port 203 of the first reversing device is communicated with the first heat exchange cavity 11.
As shown in fig. 5, the first reversing device 20 includes two opposite side panels 207 and 208 and a front panel 209, wherein two connection ports are formed on the opposite side panels 207 and 208, respectively, a first connection port 201 and a fourth connection port 204, and the other two connection ports are formed on the front panel 209, respectively, a second connection port 202 and a third connection port 203, and the rotation axis of the valve plate 205 is located between the second connection port 202 and the third connection port 203, so that the first connection port 201 can be communicated with the second connection port 202, the third connection port 203 can be communicated with the fourth connection port 204, or the first connection port 201 can be communicated with the third connection port 203, and the second connection port 202 can be communicated with the fourth connection port 204.
In some embodiments, the two side panels 207, 208 disposed opposite each other are cambered surfaces, and are perpendicular to the front panel 209 with respect to the axial direction of the cambered surfaces. The third connection port 203 is located above the second connection port 202. Of course, the third connection port 203 may also be located below the second connection port 202.
The rotation axis of the valve plate 205 is located at the center of the valve plate 205 and is coaxially disposed with the two cambered surfaces. As shown in fig. 6, the valve plate 205 rotates along the arc surface, and when the valve plate rotates to the position I, the first connection port 201 communicates with the third connection port 203, and the second connection port 202 communicates with the fourth connection port 204. When the valve plate 205 rotates to the position II, the first connection port 201 is communicated with the second connection port 202, and the third connection port 203 is communicated with the fourth connection port 204. As shown in fig. 7, when the valve plate 205 is rotated to the horizontal position, the first connection port 201, the third connection port 203, the second connection port 202, and the fourth connection port 204 communicate with each other.
The first connection port 301 of the second reversing device 30 is connected with the indoor return air inlet RA, the fourth connection port 304 of the second reversing device is connected with the outdoor air inlet OA, the second connection port 302 of the second reversing device is communicated with the second heat exchange cavity 12, and the third connection port 303 of the second reversing device is communicated with the first heat exchange cavity 11.
The second reversing device 30 is similar to the first reversing device 20 in structure, and will not be described here.
Example III
The second connection port 302 of the second reversing device 30 may communicate with either one of the first heat exchange chamber 11 and the second heat exchange chamber 12, and the third connection port 303 of the second reversing device 30 may communicate with the other one of the first heat exchange chamber 11 and the second heat exchange chamber 12.
In this embodiment, the second connection port 302 is in communication with the second heat exchange chamber 12, and the third connection port 303 is in communication with the first heat exchange chamber 11.
In an embodiment of the present invention, shown in fig. 8, there is provided an exhaust-less reheat dehumidification mode, including:
In the first step, EA damper 90 is closed.
In the second step, the valve plate of the first reversing device 20 is adjusted to be in a horizontal state, the second reversing device 30 is reversed normally, as shown in fig. 9, a fourth connecting port 304 of the second reversing device is communicated with a third connecting port 303, and a first connecting port 301 of the second reversing device is communicated with a second connecting port 302. At this time, the outdoor air inlet OA is communicated with the fourth connection port 304 of the second reversing device, and the indoor air return RA is communicated with the first connection port 301 of the second reversing device.
At this point the first heat exchange chamber 11 and the second heat exchange chamber 12 are in communication at the first reversing device 20.
And thirdly, judging whether the evaporator is in a heat exchange cavity communicated with the outdoor air inlet OA, starting the air blower 80 and the compressor 40 firstly, wherein the air blower 80 operates at rated low-grade air quantity, and when the air supply temperature is lower than the outdoor temperature, indicating that the evaporator is in the heat exchange cavity communicated with the outdoor air inlet OA, otherwise, the evaporator is not in the heat exchange cavity communicated with the outdoor air inlet OA and needs to be adjusted through reversing of a four-way valve, or adjusting through a rotary valve plate of the second reversing device 30, and taking the air duct path of the state 1 without the air exhaust reheating dehumidification mode as an example shown in fig. 9.
At this time, the air duct path is as follows:
Outdoor fresh air, namely an outdoor air inlet OA, a fourth connecting port 304 of a second reversing device, a third connecting port 303 of the second reversing device, a first heat exchange cavity 11 (a heat exchanger in the first reversing device is an evaporator), a first reversing device 20, a first connecting port 201 of the first reversing device 20, an indoor air supply port SA, and the fresh air is cooled and dehumidified.
Indoor return air, namely an indoor return air port RA, a first connecting port 301 of a second reversing device, a second connecting port 302 of the second reversing device, a second heat exchange cavity 12 (a condenser is used as a heat exchanger in the second reversing device), a first reversing device 20, a first connecting port 201 of the first reversing device 20, an indoor air supply port SA and the return air is heated.
After the fresh air and the indoor return air are mixed at the first reversing device 20, the supply air temperature is raised.
Fourth, the exhaust fan 70 is started.
The exhaust fan 70 is operated at 50-100% of rated low-grade air quantity, and the air quantity of the exhaust fan 70 is regulated according to the air supply temperature.
And fifthly, judging whether an adsorption piece close to the evaporator is saturated, if so, continuously running condensate water flows into the water receiving disc, judging that the water level of the water receiving disc corresponding to the evaporator reaches a set value, and when the water level of the water receiving disc corresponding to the evaporator reaches the set value, receiving a signal by the control module, and indicating that reversing is needed.
The bit detection module may be implemented using, but is not limited to, a float switch.
In the sixth step, the four-way valve 50 is reversed, the second reversing device 30 is reversed, the second heat exchanger 14 is used as an evaporator after the reversing, and the first heat exchanger 13 is used as a condenser, as shown in fig. 10. The fourth connection port 304 of the second reversing device is in communication with the second connection port 302, and the first connection port 301 of the second reversing device is in communication with the third connection port 303.
As shown in fig. 10, the duct path in state 2 is the no-exhaust reheat dehumidification mode:
outdoor fresh air, namely an outdoor air inlet OA, a fourth connecting port 304 of a second reversing device, a second connecting port 302 of the second reversing device, a second heat exchange cavity 12 (a heat exchanger in the second reversing device is an evaporator), a first reversing device 20, a first connecting port 201 of the first reversing device 20, an indoor air supply port SA, and the fresh air is cooled and dehumidified.
The indoor return air is heated from an indoor return air inlet RA, a first connecting port 301 of a second reversing device, a third connecting port 303 of the second reversing device, a first heat exchange cavity 11 (a heat exchanger in the first reversing device is a condenser), a first reversing device 20, a first connecting port 201 of the first reversing device 20, an indoor air supply inlet SA.
After the fresh air and the indoor return air are mixed by the first reversing device, the air supply temperature is increased.
And the water discharge is delayed, namely condensed water is remained in the water receiving disc when the first heat exchanger is an evaporator in the previous period, the first heat exchanger is used as a condenser in the period, and after the exhaust fan is started, the first heat exchange cavity 11 is in a positive pressure state, and water in the water receiving disc can be smoothly discharged. (without the need for a drain pump, delayed drainage is achieved).
Example IV
In this embodiment, the second connection port 302 is in communication with the second heat exchange chamber 12, and the third connection port 303 is in communication with the first heat exchange chamber 11.
In the embodiment with the exhaust reheating dehumidification mode, when the fresh air quantity is set to be high grade, the exhaust reheating dehumidification mode is entered, and at the moment, the introduced fresh air quantity is large, and the air valve 90 is opened to prevent the excessive indoor positive pressure on one hand and increase the air quantity at the condenser side on the other hand, so that the dehumidification capability of the system is improved.
As shown in fig. 11, includes:
in the first step, the damper 90 is opened.
And in the second step, the air valve blade of the first reversing device 20 is adjusted to be in a horizontal state, as shown in fig. 12, the second reversing device 30 reverses normally, and at the moment, the first heat exchange cavity 11 and the second heat exchange cavity 12 are communicated at the first reversing device 20. The fourth connection port 304 of the second reversing device communicates with the third connection port 303, and the first connection port 301 of the second reversing device communicates with the second connection port 302. At this time, the outdoor air inlet OA is communicated with the fourth connection port 304 of the second reversing device, and the indoor air return RA is communicated with the first connection port 301 of the second reversing device.
And thirdly, judging whether the evaporator is in a fresh air channel, firstly starting the air blower 80 and the compressor 40, wherein the air blower 80 runs at 1.25-1.5 times of rated high-grade air quantity, when the air blowing temperature is lower than the outdoor temperature, the evaporator is in a heat exchange cavity communicated with the outdoor air inlet OA, otherwise, the four-way valve is required to be changed for adjustment, or the rotary valve plate of the second reversing device 30 is used for adjustment.
Taking fig. 12 as an example, a schematic view of the air duct path in state 1 with exhaust reheat dehumidification mode is shown, and the air duct path is:
Outdoor fresh air, namely an outdoor air inlet OA, a fourth connecting port 304 of a second reversing device, a third connecting port 303 of the second reversing device, a first heat exchange cavity 11 (a heat exchanger in the first reversing device is an evaporator), a first reversing device 20, a first connecting port 201 of the first reversing device 20, an indoor air supply port SA, and the fresh air is cooled and dehumidified.
Indoor return air, namely an indoor return air port RA, a first connecting port 301 of a second reversing device, a second connecting port 302 of the second reversing device, a second heat exchange cavity 12 (a condenser is used as a heat exchanger in the second heat exchange cavity), and a first reversing device 20 and ①②.
① A part of the air enters the first connecting port 201 to the indoor air supply port SA.
② The other part of the air enters the fourth connection port 204 and the outdoor air outlet EA, and is discharged outside.
After the fresh air and a portion of the indoor return air are mixed in the first reversing device 20, the supply air temperature is increased.
The fourth step, the exhaust fan 70 operates at rated high-grade air quantity, and the method for adjusting the air quantity Qea of the exhaust fan and the air quantity Qsa of the blower is as follows:
Qsa= Qoa +β* Qra;
Qea=(1-β)* Qra;
Qra is the return air quantity, beta is the regulating factor, and beta is increased when the air supply temperature is lower than the set temperature.
And fifthly, judging whether an adsorption piece close to the evaporator is saturated, if so, continuously running condensate water flows into the water receiving disc, judging that the water level of the water receiving disc corresponding to the evaporator reaches a set value, and when the water level of the water receiving disc corresponding to the evaporator reaches the set value, receiving a signal by the control module, and indicating that reversing is needed.
The water level detection module may be implemented using, but is not limited to, a float switch.
In the sixth step, the four-way valve 50 is reversed, the second reversing device 30 is reversed, the second heat exchanger 14 is used as a condenser after the reversing, the first heat exchanger 13 is used as an evaporator, and as shown in fig. 13, the air duct path schematic diagram in the state 2 with the exhaust air reheating and dehumidifying mode is shown.
At this time, the air duct path is as follows:
outdoor fresh air, namely an outdoor air inlet OA, a fourth connecting port 304 of a second reversing device, a second connecting port 302 of the second reversing device, a second heat exchange cavity 12 (a heat exchanger in the second reversing device is an evaporator), a first reversing device 20, a first connecting port 201 of the first reversing device 20, an indoor air supply port SA, and the fresh air is cooled and dehumidified.
Indoor return air, namely an indoor return air port RA, a first connecting port 301 of a second reversing device, a third connecting port 303 of the second reversing device, a first heat exchange cavity 11 (a condenser is used as a heat exchanger in the first heat exchange cavity), and a first reversing device 20 and ①②.
① A part of the air enters the first connecting port 201 to the indoor air supply port SA.
② The other part of the air enters the fourth connection port 204 and the outdoor air outlet EA, and is discharged outside.
When the signal sent by the water level detection module is received again, the reversing is controlled, and the circulation is repeated in this way, so that the dehumidification effect is achieved.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present invention should be included in the scope of the present invention. Therefore, the protection scope of the invention is subject to the protection scope of the claims.
Claims (7)
1. A dehumidifying apparatus, comprising:
An outer shell body, wherein an outdoor air inlet, an outdoor air outlet, an indoor air supply outlet and an indoor air return outlet are formed on the outer shell body, and a first heat exchange cavity and a second heat exchange cavity are formed in the outer shell body;
the heat exchanger comprises a first heat exchanger arranged in the first heat exchange cavity and a second heat exchanger arranged in the second heat exchange cavity;
the compressors are respectively connected with the two heat exchangers through four-way valves to form a refrigerant circulation flow path;
the reversing device comprises a first reversing device and a second reversing device, the first reversing device is provided with four connecting ports which are respectively and correspondingly connected with the outdoor air outlet, the indoor air supply port, the first heat exchange cavity and the second heat exchange cavity, and the second reversing device is provided with four connecting ports which are respectively and correspondingly connected with the outdoor air inlet, the indoor air return port, the first heat exchange cavity and the second heat exchange cavity;
an outdoor temperature detection module for detecting an outdoor temperature;
An outdoor humidity detection module for detecting an outdoor relative humidity;
the control module is configured to control the communication state among the four connectors of each reversing device and control the operation of the refrigerant circulation system to dehumidify when the outdoor temperature and the outdoor relative humidity meet the opening conditions;
the dehumidifying apparatus further includes:
an air valve provided in the outdoor air outlet;
The air supply temperature detection module is used for detecting the air supply temperature of the indoor air supply port;
The control module further comprises a dehumidification mode determining module, and is used for controlling the communication state among the four ports of each reversing device and controlling the operation of a refrigerant circulation system according to the dehumidification mode;
the dehumidification mode includes:
a no-exhaust reheating dehumidification mode, wherein the air valve is controlled not to be opened in the mode;
An exhaust reheating dehumidification mode is provided, and the air valve is controlled to be opened in the mode;
When the dehumidification mode is an exhaust reheating dehumidification mode, the method for adjusting the air quantity Qea of the exhaust fan and the air quantity Qsa of the blower comprises the following steps:
Qsa= Qoa +β* Qra;
Qea=(1-β)* Qra;
Qra is the return air volume, qoa is the air inlet volume, beta is the regulating factor, and beta is increased when the air supply temperature is lower than the set temperature.
2. The dehumidifying apparatus according to claim 1, the dehumidifying device is characterized by further comprising:
the absorption parts are arranged in the first heat exchange cavity and the second heat exchange cavity and are used for absorbing or releasing moisture;
The exhaust fan is arranged at the outdoor exhaust port;
a blower provided at the indoor air supply port;
when the control module controls dehumidification, four connectors of the first reversing device are controlled to be communicated with each other, the second reversing device is controlled to respectively connect the outdoor air inlet and the indoor air return with the first heat exchange cavity and the second heat exchange cavity in a one-to-one correspondence manner, and the operation of the refrigerant circulation system is controlled;
The evaporator is located in the heat exchange cavity communicated with the outdoor air inlet.
3. The dehumidifying apparatus according to claim 2, the dehumidifying device is characterized by further comprising:
the two water receiving discs are respectively arranged below the first heat exchanger and the second heat exchanger;
The water receiving disc is provided with a water level detection module, the water level of the water receiving disc corresponding to the evaporator is controlled to be obtained, the second reversing device is controlled to perform reversing when the water level reaches a set value, and the refrigerant flow direction of the refrigerant circulation system is controlled to be reversed.
4. The dehumidifier of claim 3, further comprising detecting whether the adsorption member corresponding to the evaporator is saturated, and controlling the second reversing device to reverse when the adsorption member corresponding to the evaporator is saturated and the water level of the water pan corresponding to the evaporator reaches a set value, and controlling the refrigerant flow direction of the refrigerant circulation system to reverse.
5. The dehumidifying apparatus according to claim 2, the dehumidifying device is characterized by further comprising:
the air supply temperature detection module is used for detecting the air supply temperature of the indoor air supply opening;
After dehumidification is started, the method for judging whether the evaporator is positioned in the heat exchange cavity communicated with the outdoor air inlet comprises the following steps:
After the compressor is started, comparing the air supply temperature with the outdoor temperature, and judging that the evaporator is positioned in the heat exchange cavity communicated with the outdoor air inlet when the air supply temperature is lower than the outdoor temperature, otherwise, judging that the evaporator is not positioned in the heat exchange cavity communicated with the outdoor air inlet, and regulating the second reversing device to perform reversing or controlling the four-way valve to switch on.
6. The dehumidifying apparatus according to claim 1, the dehumidifying device is characterized by further comprising:
When the dehumidification mode is a reheat dehumidification mode without exhaust air, the control module further comprises a control fan for controlling the opening of the fan and adjusting the air quantity of the fan according to the air supply temperature.
7. The dehumidification device of claim 1, wherein the control module further comprises means for obtaining a set fresh air volume and determining a dehumidification mode based on the set fresh air volume;
When the set fresh air quantity is in a low grade, executing the reheating dehumidifying die without exhaust air;
and executing the exhaust reheating dehumidification mode when the set fresh air quantity is in a high grade.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210346708.7A CN116928818B (en) | 2022-03-31 | 2022-03-31 | A dehumidification device |
| PCT/CN2022/123314 WO2023142512A1 (en) | 2022-01-27 | 2022-09-30 | Air conditioner |
| CN202280063779.4A CN118043595A (en) | 2022-01-27 | 2022-09-30 | Air Conditioner |
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| CN202210346708.7A CN116928818B (en) | 2022-03-31 | 2022-03-31 | A dehumidification device |
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| CN116928818A CN116928818A (en) | 2023-10-24 |
| CN116928818B true CN116928818B (en) | 2025-12-30 |
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Citations (2)
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| CN1768236A (en) * | 2003-03-10 | 2006-05-03 | 大金工业株式会社 | humidity control device |
| CN206739522U (en) * | 2017-05-19 | 2017-12-12 | 珠海格力电器股份有限公司 | Fresh air system |
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| JP2004353908A (en) * | 2003-05-28 | 2004-12-16 | Seibu Giken Co Ltd | Dehumidifying air conditioner |
| CN109000312B (en) * | 2018-06-08 | 2020-07-28 | 同济大学 | Integral heat pump heat recovery type fresh air dehumidifier with internal circulation mode |
| CN211820853U (en) * | 2019-12-31 | 2020-10-30 | 湖南佳一电力科技开发有限公司 | Novel four-way quick reversing valve |
| CN112325420A (en) * | 2020-10-15 | 2021-02-05 | 同济大学 | Heat pump heat recovery fresh air fan with multiple working modes |
| CN215062650U (en) * | 2020-12-14 | 2021-12-07 | 青岛海信日立空调系统有限公司 | Full heat exchanger |
| CN114017940B (en) * | 2021-10-22 | 2022-09-09 | 同济大学 | Integral heat pump heat recovery type fresh air dehumidifier and control method thereof |
| CN113932330B (en) * | 2021-10-22 | 2023-02-10 | 同济大学 | Integrated fresh air dehumidifier with precooling water tray and control method thereof |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1768236A (en) * | 2003-03-10 | 2006-05-03 | 大金工业株式会社 | humidity control device |
| CN206739522U (en) * | 2017-05-19 | 2017-12-12 | 珠海格力电器股份有限公司 | Fresh air system |
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