JP2011127880A - Air conditioning system - Google Patents

Abstract

An air conditioning system in which a user can confirm in advance the effects of energy saving and power saving before lowering the set temperature.
In an air conditioning system that air-conditions a room 4 using hot water, a hot water heating means 111 that heats hot water, a radiator 2 that air-conditions the room using hot water, and hot water that heats the hot water 111 And a hot water circulation means 112 that circulates between the radiator 2 and the power consumption measuring means 114 that measures the power consumption of the heat source unit 1 provided with the hot water heating means 111 and the hot water circulation means 112; A controller 3 provided in the room 4 having room temperature setting means for setting the room 4 to a desired set temperature, and a controller 120 capable of controlling the operation of the heat source unit 1 depending on the set temperature. When the set temperature is changed, the power consumption at the changed set temperature is predicted by comparing the set temperature before the change with the set temperature after the change. 3 To display.
[Selection] Figure 1

Description

  The present invention relates to an air conditioning system including a heat source device, a radiator, and a controller.

  An air conditioning system represented by floor heating is a device that consumes a large amount of power among devices used in the home. In addition, the power consumption greatly increases and decreases depending on the operation time and the set temperature. In such devices, the power consumption and electricity charges are displayed on the controller, etc., and when the power consumption is large or the electricity charges are high, the user can change the operation time or set temperature to change the power consumption. The amount can be reduced and energy can be saved.

  Conventionally, a technology that shows the current power consumption and the history of past power consumption on the display of the remote control, allows the user to grasp the history of the past electricity charges together with the current electricity charges, and predicts the electricity charges for the current month. (For example, refer to Patent Document 1).

JP 2001-99465 A

  However, in the above conventional power consumption display method, when the user lowers the set temperature to save energy, the power saving effect due to the lowered set temperature is compared with the past electricity charges after using for a certain period. It was something that could be confirmed for the first time. For this reason, there is a problem that the usability is very bad from the viewpoint of energy saving.

  The present invention has been made in view of the above, and an object of the present invention is to provide an air conditioning system in which a user can confirm in advance the effects of energy saving and power saving when the set temperature is changed.

  In order to solve the above-described problems and achieve the object, the present invention provides an air conditioning system that air-conditions a room using hot water, hot water heating means for heating the hot water, and the room using the hot water. Measures the power consumption of a heat source unit including a heat radiating unit for air conditioning, a hot water circulating unit for circulating the hot water between the hot water heating unit and the heat radiating unit, and the hot water heating unit and the hot water circulating unit. A controller provided in the room, having power consumption measuring means, room temperature setting means for setting the room to a desired set temperature, and control capable of controlling the operation of the heat source device depending on the set temperature Means for predicting the power consumption at the changed set temperature by comparing the set temperature before the change with the set temperature after the change when the set temperature is changed. Characterized in that it displays in La.

  According to the present invention, it becomes possible for the user to confirm in advance the effect of lowering the set temperature of the air conditioning system, and it becomes possible to use it while being more conscious of energy saving and power saving than the conventional air conditioning system. There is an effect.

FIG. 1 is a diagram showing a configuration of an air conditioning system according to Embodiments 1 and 2 of the present invention. FIG. 2 is a diagram illustrating a configuration of a controller and a controller of the heat source unit of the air conditioning system according to the first embodiment of the present invention. FIG. 3 is a diagram showing the relationship between the temperature difference between the set temperature and the outside air temperature and the heating load of the air conditioning system according to the first embodiment of the present invention. FIG. 4: is a figure which shows the structure of the control part and controller of the heat source machine of the air conditioning system concerning Embodiment 2 of this invention. FIG. 5 is a diagram showing the relationship between the set hot water temperature and the coefficient of performance of the air conditioning system according to the second embodiment of the present invention.

  Embodiments of an air conditioning system according to the present invention will be described below in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.

Embodiment 1 FIG.
FIG. 1 is a diagram showing a configuration of an air conditioning system 100 according to a first embodiment of an air conditioning system according to the present invention.

  The air conditioning system 100 includes a heat source unit 1, a radiator 2 that is a heat radiating unit that air-conditions the room 4 using hot water, a controller 3 that is a control unit of the heat source unit 1 that is paired with the radiator 2, and a heat source unit. 1 is connected to the water pipe 51 for sending the hot water generated in the heat source 2 to the radiator 2, the return water pipe 52 for circulating the heat water radiated in the room 4 by the radiator 2 to the heat source unit 1, and the heat source unit 1 and the controller 3. Wiring group 6 to be provided.

  The heat source unit 1 includes a hot water heating unit 111 that heats hot water circulating between the heat source unit 1 and the radiator 2, a hot water circulation unit 112 that circulates hot water between the heat source unit 1 and the radiator 2, and “ By switching to “open” or “closed”, the hot water circuit opening / closing means 113 that can start or stop the supply of hot water from the hot water circulation means 112 to the radiator 2 via the outgoing water pipe 51 and the power consumption of the heat source unit 1 A power consumption measuring unit 114 that measures the amount, and a controller 120 that controls each operation of the heat source device 1 by communicating with each other via the controller 3 and the wiring group 6 are provided. The hot water circuit opening / closing means 113 may be in the return water pipe 52 instead of the outgoing water pipe 51.

  As the hot water heating means 111, methods such as an electric heater type, a heat pump type, a gas type, and an oil boiler type are conceivable, but are not limited to these types.

  The wiring group 6 includes wirings 61, 62, and 63 via the control unit 120, and further includes wirings 64, 65, and 69 (not shown in FIG. 1). The wiring 61 connects the control unit 120 and the hot water heating means 111, the wiring 62 connects the control unit 120 and the hot water circulation means 112, and the wiring 63 connects the control unit 120 and the hot water circuit opening / closing means 113, respectively. Thereby, the controller 3 can control the hot water heating means 111, the hot water circulation means 112, and the hot water circuit opening / closing means 113 via the control unit 120.

  The radiator 2 may be a floor heating panel, a panel radiator, a fan convector, or the like, but a plurality of radiators can be connected to one heat source unit 1. The radiator 2 may be integrated with the controller 3.

  Further, as the hot water pipe 5 composed of the outgoing water pipe 51 and the return water pipe 52, a copper pipe or a resin pipe is used, but it is not limited to these materials.

  FIG. 2 is a diagram illustrating a configuration of the control unit 120 and the controller 3 of the heat source device 1 according to the first embodiment of the air conditioning system according to the present invention.

  The control unit 120 of the heat source unit 1 includes a power consumption storage unit 121 that stores the power consumption of the heat source unit 1 measured by the power consumption measurement unit 114, and an outside air temperature measurement unit 122 that measures the outside air temperature outside the room 4. And a calculation means 129 for calculating a power consumption predicted value when the temperature setting is changed based on various data of the air conditioning system.

  Note that the power consumption storage unit 121, the outside air temperature measurement unit 122, and the calculation unit 129 are not necessarily provided in the control unit 120, and may be provided outside the control unit 120.

  The controller 3 sets the operation on / off setting means 301 that can switch the operation of the heat source unit 1 and the radiator 2 to “on” or “off” and the temperature of the room 4 in which the controller 3 is installed to a desired set temperature. An indoor temperature setting unit 311 for setting, an indoor temperature storage unit 312 for storing the indoor temperature set by the indoor temperature setting unit 311, and an indoor temperature display unit for checking the indoor temperature set by the indoor temperature setting unit 311 313, a power consumption storage unit 332 that stores the power consumption consumed by the heat source unit 1 transmitted from the power consumption storage unit 121, and a power consumption stored in the power consumption storage unit 332 for confirming Electricity consumption display unit 333, electric energy consumption reset unit 341 for erasing accumulated electric power consumption data stored in electric power consumption storage unit 332, air conditioning system 100 is set by an electricity charge unit price setting unit 351 that sets the unit price of an electricity charge used by 100, an electricity charge unit price storage unit 352 that stores an electricity charge unit price set by the electricity charge unit price setting means 351, and an electricity charge unit price setting unit 351. The electricity price unit display unit 353 for confirming the electricity price unit price, the power consumption consumed for the radiator 2 stored in the power consumption amount storage unit 332 and the electricity rate unit price storage unit 352 are stored. Electricity charge calculation means 361 for calculating the electricity charge used for the radiator 2 based on the electricity charge unit price, electricity charge storage unit 362 for storing the electricity charge calculated by the electricity charge calculation means 361, and electricity charge calculation means 361 The electricity rate display part 363 which can confirm the electricity rate calculated by is provided.

  As shown in FIG. 2, the wiring 61 is connected to the operation on / off setting means 301 and the hot water heating means 111 via the control unit 120, and the wiring 62 is connected to the operation on / off setting means 301 via the control unit 120. And the hot water circulation means 112, the wiring 63 via the control unit 120, the operation on / off setting means 301 and the hot water circuit opening / closing means 113, and the wiring 64 as the power consumption storage unit 121 and the power consumption storage unit 332. The wiring 65 connects the indoor temperature storage unit 312 and the calculation unit 129, and the wiring 69 connects the calculation unit 129 and the power consumption storage unit 332, respectively.

In the present embodiment, the connection between the heat source device 1 and the controller 3 is a wired connection by the wiring group 6, but may be a wireless connection as long as an equivalent function can be realized.
Furthermore, the operation on / off setting means 301 and the hot water heating means 111, the hot water circulation means 112, and the hot water circuit opening / closing means 113 need not be connected via the control unit 120.

  At the time of factory shipment, a predetermined value is input to the room temperature setting means 311, and the value is stored in the room temperature storage unit 312. Further, before starting the operation of the air conditioning system 100 at the time of construction or the like, the electricity bill unit price is input in advance into the electricity bill unit price setting means 351, and the value is stored in the electricity bill unit price storage unit 352.

  Hereinafter, the operation | movement at the time of the driving | operation of the air conditioning system 100 concerning this Embodiment is demonstrated.

  When the operation “ON” is performed by the operation ON / OFF setting means 301 of the controller 3, the heat source unit 1 sets the hot water circuit opening / closing means 113 to “open” via the control unit 120 according to the control signal from the wiring 63. To do. At the same time, the hot water heating means 111 and the hot water circulation means 112 are operated according to control signals from the wiring 61 and the wiring 62, respectively. Thereby, it becomes possible to circulate hot water to the radiator 2 through the outgoing water pipe 51 and the return water pipe 52, and the room 4 is heated.

  When an operation “OFF” operation is performed by the operation ON / OFF setting means 301, or the room temperature of the room 4 is determined based on a measurement result of a temperature sensor (not shown) provided in the controller 3, for example. When the set temperature stored in 312 is reached, the controller 3 sends an operation stop control signal to the heat source unit 1.

  Specifically, the heat source device 1 sets the hot water circuit opening / closing means 113 to “closed” in accordance with a control signal or the like via the wiring 63 from the controller 3. Alternatively, a control signal from a comparison control circuit (not shown) provided in the controller 3 that compares the measurement result of the temperature sensor (not shown) and the set temperature stored in the room temperature storage unit 312 passes through the wiring 63. The hot water circuit opening / closing means 113 is set to “closed”. Thereby, the circulation of warm water through the outgoing water pipe 51 and the return water pipe 52 is stopped.

  The means for stopping the operation of the heat source device 1 is not limited to the above, and the hot water heating means 111 may be stopped, or the hot water circulation means 112 may be stopped. In any case, depending on the set temperature, there may be provided a control means capable of controlling the hot water heating means or the hot water circulation system including either or both of the hot water circulation means 112 and the hot water circuit opening / closing means 113. Absent.

  Regardless of whether or not there is an operation request from the controller 3, the heat source unit 1 always measures the power consumption by the power consumption measuring means 114, the entire period from turning on the air conditioning system, the latest one hour, one day, Accumulate for each period of one week, one month, and one year. The accumulated data is held in the power consumption storage unit 121.

  Further, the power consumption data accumulated and held in the power consumption storage unit 121 is transmitted and stored to the power consumption storage unit 332 of the controller 3 through the wiring 64 periodically, for example, every hour. .

  Further, the heat source unit 1 has the outside temperature measured by the outside temperature measuring means 122 for the entire period from the power-on of the air conditioning system, the latest one hour, one day, one week, one month, one year. The average value is calculated by the calculation means 129, and the result is stored in a predetermined storage device (not shown) connected to the calculation means 129.

  Further, the heat source device 1 is set by the indoor temperature setting means 311 and the set temperature stored in the indoor temperature storage unit 312 is sent to the calculation means 129 via the wiring 65, and the outside air temperature measured by the outside air temperature measuring means 122 The temperature difference is compared and the calculation means 129 calculates the temperature difference.

  The calculated temperature difference is calculated by the calculation means 129 for the entire period from the power-on of the air conditioning system, the latest one hour, one day, one week, one month, and one year. The result is stored in a predetermined storage device (not shown) connected to the calculation means 129 together with the calculated latest temperature difference.

  When the reset operation is performed by the power consumption reset means 341, the controller 3 instructs the heat source unit 1 to reset the power consumption, and the heat source unit 1 resets the power consumption data stored in the power consumption storage unit 121. Then, the integration of the power consumption is started again. At this time, the power consumption data stored in the power consumption storage unit 332 of the controller 3 is also reset.

  When the set temperature is changed by the room temperature setting means 311 of the controller 3, the power consumption before the set temperature is changed and the power consumption when the set temperature is changed are displayed. A specific method for calculating the power consumption before and after the set temperature is changed will be described later.

  The integration period of the power consumption can be arbitrarily selected from the entire period from the power-on of the air conditioning system, the latest one hour, one day, one week, one month, and one year.

  The change of the set temperature is automatically confirmed when the room temperature setting means 311 confirms the room temperature setting or when no operation is performed for a certain time such as 10 seconds.

  FIG. 3 is a diagram showing an example of the relationship between the temperature difference between the set temperature and the outside air temperature and the heating load in the first embodiment of the air conditioning system according to the present invention. As can be seen from FIG. 3, there is a proportional relationship between the temperature difference between the set temperature and the outside air temperature and the heating load, and the larger the temperature difference between the set temperature and the outside air temperature, the greater the heating load of the air conditioning system. The smaller the temperature difference is, the less the heating load of the air conditioning system.

  In addition, the heating load of the air conditioning system and the power consumption are in a proportional relationship, that is, the power consumption increases when the set temperature is increased, and the power consumption decreases when the set temperature is decreased.

  Therefore, when the set temperature is changed, the power consumption is compared with the temperature difference between the past set temperature and the outside air temperature and the temperature difference between the set temperature after the change and the outside air temperature. Can be calculated accordingly.

  A specific method for calculating the power consumption before and after the set temperature is changed is as follows.

  First, the relationship between the temperature difference between the set temperature and the outside air temperature and the heating load is preset as a function. Here, the set temperature is Ts, the outside air temperature is Ta, the heating load is H, the change rate of the heating load due to the temperature difference is Ra, and the power consumption is W.

For example, when the set temperature Ts stored in the room temperature storage unit 312 is 20 ° C., the set temperature Ts is sent to the computing means 129 via the wiring 65. An average value obtained by averaging the temperature difference between the set temperature Ts (= 20 ° C.) and the outside air temperature Ta measured by the outside air temperature measuring unit 122 as described above is defined as (20−Ta) _average . As described above, this value is calculated by the calculation means 129 and stored in a predetermined storage device (not shown).

Here, in the calculation means 129 of the heat source device 1, the heating load H ₀ = 1500W before the set temperature is changed is calculated using the relationship between the temperature difference between the set temperature and the outside air temperature and the heating load shown in FIG. Calculated. Here, as the outside air temperature, the temperature difference from the set temperature may be calculated using the latest measured outside air temperature.

Next, a case where the set temperature is changed by the room temperature setting means 311 and the set temperature Ts is changed from 20 ° C. to 18 ° C. will be considered. Here, the average value of the outside air temperature measured by the outside air temperature measuring means 122 of the heat source device 1 is defined as Ta _average . As described above, this value is also calculated by the calculation means 129 and stored in a predetermined storage device (not shown).

Then, the temperature difference between the changed set temperature 18 ° C. and the average value Ta _average of the outside air temperature becomes (18−Ta _average ), and the temperature between the set temperature and the outside air temperature shown in FIG. Using the relationship between the difference and the heating load, the heating load H ₁ = 1200 W when the set temperature is changed is calculated. Also here, the temperature difference from the set temperature changed using the latest outside air temperature as the outside air temperature may be calculated.

Then, the arithmetic unit 129 of the heat source device 1, the heating load H ₁ when the set temperature is changed, divided by the heating load H ₀ before the set temperature is changed, a change in heating load due to the temperature difference The ratio Ra = H ₁ / H ₀ = 1200/1500 = 0.8 is calculated.

Finally, when the set temperature is changed by multiplying the actual power consumption W ₀ accumulated and held in the power consumption storage unit 121 by the heating load change rate Ra = 0.8 due to the temperature difference. Power consumption W ₁ = _0.8 W ₀ is calculated by the calculation means 129 and predicted.

  This prediction result is transmitted to the power consumption storage unit 332 of the controller 3 via the wiring 69, and can be further displayed as a predicted value on the power consumption display unit 333. Further, the controller 3 can perform the above arithmetic processing by providing the function of the arithmetic means 129 in the controller 3.

  The above description shows one embodiment of the present invention, and the relationship between the temperature difference between the set temperature and the outside air temperature and the heating load depends on the air conditioning system according to the embodiment of the present invention. Become. Therefore, the relationship is not limited to that shown in FIG. 3, and an appropriate relationship is set for each air conditioning system. Moreover, it is good also as what can adjust the relationship between the temperature difference of setting temperature and external temperature, and a heating load according to the utilization load of an air conditioning system.

  In the above description, the method for calculating the power consumption when the outside air temperature measurement unit 122 is provided in the heat source unit 1 and the set temperature is changed has been described. However, in order to simplify the configuration of the heat source unit 1 and data processing, the outside air temperature measuring means 122 is not provided, the outside air temperature is set as a fixed value, and a method for calculating the power consumption is selected. It doesn't matter. In this case, it becomes possible to predict the power consumption after changing the set temperature based on the set temperature before the change and the set temperature after the change.

  In the air conditioning system having the control unit shown in FIG. 2, the electricity bill unit price is stored in the electricity bill unit price storage unit 352 by the electricity bill unit setting means 351 for setting the unit price of the electricity bill used by the air conditioning system. It is possible to make it.

  Therefore, the electricity bill unit price stored in the electricity bill unit price storage unit 352 is stored in the electricity consumption amount before the set temperature is changed by the electricity bill calculation unit 361 and the power consumption amount when the set temperature is changed. It can also be multiplied.

  As a result, the power consumption display unit 333 displays the power consumption before and after the change of the set temperature, or instead, the electricity rate display unit 363 changes the electricity rate and the set temperature before the set temperature is changed. It is also possible to display the electricity rate that is predicted in the event of a failure.

  As described above, when the set temperature of the air-conditioned room is changed according to this embodiment, by displaying and comparing the power consumption of the air conditioning system before and after changing the set temperature of the room, It becomes possible to predict a change in power consumption.

  As a result, for example, when the user changes the set temperature of the air conditioning system, the increase or decrease in power consumption or electricity charges can be predicted in advance, and the energy saving and power saving are more effective than conventional air conditioning systems. It can be used.

Embodiment 2. FIG.
The configuration of the air conditioning system 100 according to the second embodiment of the present invention is the same as that of the first embodiment with respect to the portion shown in FIG.

  However, this embodiment differs from the first embodiment in the following points.

  FIG. 4 is a diagram illustrating a configuration of the control unit 120 and the controller 3 of the heat source device 1 according to the second embodiment of the air conditioning system according to the present invention.

  The controller 3 of the second embodiment shown in FIG. 4 has a desired temperature of hot water flowing through the hot water pipes 51 and 52 instead of the room temperature setting means 311 shown in FIG. 2 showing the configuration of the controller according to the first embodiment. A hot water temperature setting means 321 for setting the set hot water temperature is provided. Similarly, a hot water temperature storage unit 322 that stores the set hot water temperature set by the hot water temperature setting unit 321 instead of the indoor temperature storage unit 312, and a hot water temperature display unit that displays the set hot water temperature instead of the indoor temperature display unit 313. 323 respectively. Moreover, the outside temperature measuring means 122 which was in FIG. 2 is not in FIG. The wiring group 6 includes a wiring 66 instead of the wiring 65, and the wiring 66 connects the hot water temperature storage unit 322 and the calculation means 129. The structure of FIG. 4 other than the above is the same as that of FIG.

  Also in this embodiment, the connection between the heat source device 1 and the controller 3 is a wired connection by the wiring group 6, but a wireless connection may be used as long as an equivalent function can be realized.

  Further, the connection between the operation on / off setting means 301, the hot water heating means 111, the hot water circulation means 112, and the hot water circuit opening / closing means 113 does not necessarily have to be via the control unit 120, as in the first embodiment. is there.

  Hereinafter, the operation at the time of operation of the air conditioning system according to the present embodiment will be described.

  When the operation “ON” is performed by the operation ON / OFF setting means 301 of the controller 3, the control unit 120 in the heat source unit 1 sets the hot water circuit opening / closing means 113 to “open” in accordance with the control signal from the wiring 63. . At the same time, the hot water heating means 111 and the hot water circulation means 112 are operated according to control signals from the wiring 61 and the wiring 62, respectively.

  Thereby, it becomes possible to circulate hot water to the radiator 2 through the outgoing water pipe 51 and the return water pipe 52, and the room 4 is heated.

  When the operation ON / OFF setting means 301 performs an operation “OFF” operation, or the temperature of the hot water in the outgoing water pipe 51 or the return water pipe 52 is, for example, a temperature sensor (not shown) provided in the heat source unit 1. When the set hot water temperature stored in the hot water temperature storage unit 322 is reached from the measurement result, the heat source device 1 stops operation.

  Specifically, when an operation “off” operation is performed by the operation on / off setting means 301, the heat source device 1 opens the hot water circuit opening / closing means 113 in accordance with a control signal or the like via the wiring 63 from the controller 3. “Closed”. When the hot water temperature reaches the set hot water temperature, the measurement result of the temperature sensor (not shown) and the hot water temperature storage unit 322 sent to the heat source unit 1 side, for example, via the wiring 66 or the like are stored. A control signal from a comparison control circuit (not shown) provided in the heat source unit 1 that compares the set hot water temperature sets the hot water circuit opening / closing means 113 to “closed”. Thereby, the circulation of warm water through the outgoing water pipe 51 and the return water pipe 52 is stopped.

  The means for stopping the operation of the heat source device 1 is not limited to the above, and the hot water heating means 111 may be stopped, or the hot water circulation means 112 may be stopped. In any case, depending on the set hot water temperature, there is provided a control means capable of controlling the hot water heating means or the hot water circulation system including either or both of the hot water circulation means 112 and the hot water circuit opening / closing means 113. I do not care.

  Regardless of whether or not there is an operation request from the controller 3, the heat source unit 1 always measures the power consumption by the power consumption measuring means 114, the entire period from turning on the air conditioning system, the latest one hour, one day, Accumulate for each period of one week, one month, and one year. The accumulated data is held in the power consumption storage unit 121.

  In addition, the power consumption data accumulated and held in the power consumption storage unit 121 is periodically transmitted to the power consumption storage unit 332 of the controller 3 via the wiring 64 periodically, for example, every hour, for example. It is stored in the storage unit 332.

  When the reset operation is performed by the power consumption reset means 341, the controller 3 instructs the heat source unit 1 to reset the power consumption, and the heat source unit 1 resets the power consumption data stored in the power consumption storage unit 121. Then, the integration of the power consumption is started again. At this time, the power consumption data stored in the power consumption storage unit 332 of the controller 3 is also reset.

  When the set hot water temperature is changed by the hot water temperature setting means 321 of the controller 3, the power consumption before the set hot water temperature is changed and the power consumption when the set hot water temperature is changed are displayed. A specific method for calculating the power consumption before and after the set hot water temperature is changed will be described later.

  The integration period of the power consumption can be arbitrarily selected from the entire period from the power-on of the air conditioning system, the latest one hour, one day, one week, one month, and one year. The change of the set warm water temperature is automatically confirmed when the set warm water temperature is confirmed by the warm water temperature setting means 321 or when no operation is performed for a certain time such as 10 seconds, for example.

  FIG. 5 is a diagram showing an example of the relationship between the set hot water temperature and the coefficient of performance of the air conditioning system in the second embodiment of the air conditioning system according to the present invention. As can be seen from FIG. 5, the set hot water temperature and the coefficient of performance of the air conditioning system have an inversely proportional relationship. The higher the set hot water temperature, the worse the coefficient of performance of the air conditioning system, and the lower the set hot water temperature, the lower the coefficient of performance of the air conditioning system. Get better.

  In addition, the coefficient of performance of the air conditioning system and the power consumption are inversely proportional, that is, the power consumption increases when the setting hot water temperature is increased, and the power consumption decreases when the setting hot water temperature is decreased. Become.

  Therefore, the power consumption when the set hot water temperature is changed should be calculated according to the rate of change in the coefficient of performance of the air conditioning system due to the hot water temperature difference by comparing the past set hot water temperature with the changed set hot water temperature. Can do.

  A specific method of calculating the power consumption before and after the set hot water temperature is changed is as follows.

  First, the relationship between the set hot water temperature and the coefficient of performance of the air conditioning system is preset as a function. Here, the set hot water temperature is Tw, the coefficient of performance of the air conditioning system is E, the rate of change of the air conditioning system coefficient of performance due to the temperature difference is Rw, and the power consumption is W.

For example, when the set hot water temperature Tw stored in the hot water temperature storage unit 322 is 50 ° C., the set hot water temperature Tw is sent to the computing means 129 via the wiring 66. In the calculation means 129, the coefficient of performance E ₀ = 3.0 of the air conditioning system before the set hot water temperature is changed is calculated using the relationship between the set hot water temperature and the coefficient of performance of the air conditioning system shown in FIG. The

  Next, consider a case where the set hot water temperature Ts is changed from 50 ° C. to 45 ° C. by the hot water temperature setting means 321.

Here, in the calculation means 129 of the heat source device 1, the coefficient of performance E ₁ of the air conditioning system when the set hot water temperature is changed using the relationship between the set hot water temperature and the coefficient of performance of the air conditioning system shown in FIG. 3.6 is calculated.

Then, the arithmetic unit 129 of the heat source device 1, the coefficient of performance E ₁ of the air conditioning system when the set hot water temperature is changed, divided by the coefficient of performance E ₀ of the air conditioning system prior to setting the hot water temperature is changed Then, change ratio Rw = E ₁ / E ₀ = 3.6 / 3.0 = 1.2 of the coefficient of performance of the air conditioning system due to the difference in hot water temperature is calculated.

Finally, by multiplying the actual power consumption W ₀ accumulated and held in the power consumption storage unit 121 in the same manner as in the first embodiment by the change rate Rw = 1.2 of the air conditioning system due to the hot water temperature difference. The power consumption W ₁ = W ₀ /1.2 when the set hot water temperature is changed is calculated and predicted by the calculation means 129.

  This prediction result is transmitted to the power consumption storage unit 332 of the controller 3 via the wiring 69, and can be further displayed as a predicted value on the power consumption display unit 333. Further, the controller 3 can perform the above arithmetic processing by providing the function of the arithmetic means 129 in the controller 3.

  The above description shows one embodiment of the present invention, and the relationship between the set hot water temperature and the coefficient of performance of the air conditioning system depends on the air conditioning system according to the embodiment of the present invention. Therefore, the relationship is not limited to that shown in FIG. 5, and an appropriate relationship is set for each air conditioning system. Further, the relationship between the set hot water temperature and the coefficient of performance of the air conditioning system may be adjusted according to the use load of the air conditioning system.

  The power consumption calculation method when the set hot water temperature is changed has been described above, but the power consumption before the set hot water temperature is changed and the set hot water temperature are changed as in the first embodiment. In this case, the electricity consumption unit price stored in the electricity charge unit price storage unit 352 can be multiplied by the power consumption amount in the case of the above.

  As a result, the power consumption display unit 333 displays the power consumption before and after the change of the set temperature, or alternatively, the electricity rate display unit 363 displays the electric charge and the set hot water temperature before the set hot water temperature is changed. It is also possible to display the electricity bill that is expected when it is changed.

  As described above, according to the present embodiment, when the set hot water temperature of the air conditioning system is changed, by displaying and comparing the power consumption of the air conditioning system before and after changing the set hot water temperature of the hot water, It becomes possible to predict a change in power consumption.

  As a result, for example, when the user changes the set hot water temperature of the air conditioning system, changes in power consumption and electricity charges can be predicted in advance, effectively conscious of energy saving and power saving compared to conventional air conditioning systems. Can be used.

  Furthermore, the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention in the implementation stage. Further, the above embodiments include inventions at various stages, and various inventions can be extracted by appropriately combining a plurality of disclosed constituent requirements. For example, even if some constituent requirements are deleted from all the constituent requirements shown in the embodiment, the problem described in the column of the problem to be solved by the invention can be solved, and is described in the column of the effect of the invention. When an effect is obtained, a configuration from which this configuration requirement is deleted can be extracted as an invention. Furthermore, the constituent elements over different embodiments may be appropriately combined.

  As described above, the air conditioning system according to the present invention is useful for heating equipment represented by floor heating and the like, and is particularly suitable for a home air conditioning system in which reduction of power consumption and energy saving are desired.

DESCRIPTION OF SYMBOLS 1 Heat source machine 2 Radiator 3 Controller 4 Room 5 Hot water piping 51 Outbound water pipe 52 Return water pipe 6 Wiring group 61, 62, 63, 64, 65, 66, 69 Wiring 100 Air conditioning system 111 Hot water heating means 112 Hot water circulation means 113 Hot water circuit Opening / closing means 114 Power consumption measuring means 120 Control part 121 Power consumption storage part 122 Outside air temperature measuring means 129 Calculation means 301 Operation on / off setting means 311 Indoor temperature setting means 312 Indoor temperature storage part 313 Indoor temperature display part 321 Hot water temperature Setting unit 322 Hot water temperature storage unit 323 Hot water temperature display unit 332 Electricity consumption storage unit 333 Electricity consumption display unit 341 Electricity consumption reset unit 351 Electricity unit price setting unit 352 Electricity unit price storage unit 353 Electricity unit price display unit 361 Electricity Charge calculation means 362 Electricity charge憶部 363 electricity rate display unit

Claims (5)

In an air conditioning system that uses hot water to air-condition the room,
Hot water heating means for heating the hot water;
Heat radiating means for air-conditioning the room using the hot water;
Hot water circulation means for circulating the warm water between the warm water heating means and the heat dissipation means;
A power consumption measuring means for measuring a power consumption of a heat source machine comprising the hot water heating means and the hot water circulation means;
A controller provided in the room, having room temperature setting means for setting the room to a desired set temperature;
Control means capable of controlling the operation of the heat source machine depending on the set temperature;
When the set temperature is changed, the power consumption at the set temperature after the change is predicted and displayed on the controller by comparing the set temperature before the change with the set temperature after the change. Air conditioning system. In an air conditioning system that uses hot water to air-condition the room,
Hot water heating means for heating the hot water;
Heat radiating means for air-conditioning the room using the hot water;
Hot water circulation means for circulating the warm water between the warm water heating means and the heat dissipation means;
A power consumption measuring means for measuring a power consumption of a heat source machine comprising the hot water heating means and the hot water circulation means;
A controller provided in the room, having room temperature setting means for setting the room to a desired set temperature;
Control means capable of controlling the operation of the heat source machine depending on the set temperature;
An outside temperature measuring means for measuring the outside temperature outside the room,
When the set temperature is changed, the temperature difference between the set temperature before the change and the outside air temperature measured by the outside air temperature measuring means is compared with the temperature difference between the set temperature after the change and the measured outside air temperature. Thus, the power consumption at the changed set temperature is predicted and displayed on the controller.   Instead of the measured outside temperature, the average over the entire period from the power-on of the air conditioning system of the measured outside temperature, the latest one hour, one day, one week, one month, one year The air conditioning system according to claim 2, wherein any one of the values is used. In an air conditioning system that uses hot water to air-condition the room,
Hot water heating means for heating the hot water;
Heat radiating means for air-conditioning the room using the hot water;
Hot water circulation means for circulating the warm water between the warm water heating means and the heat dissipation means;
A power consumption measuring means for measuring a power consumption of a heat source machine comprising the hot water heating means and the hot water circulation means;
A controller provided in the room, having hot water temperature setting means for setting the hot water to a desired set hot water temperature;
Control means capable of controlling the operation of the heat source machine depending on the set hot water temperature;
When the set hot water temperature is changed, the power consumption at the set hot water temperature after the change is predicted and displayed on the controller by comparing the set hot water temperature before the change with the set hot water temperature after the change. An air conditioning system characterized by An electricity bill calculating means for calculating a predicted electricity bill based on the predicted power consumption and the electricity bill unit price;
The air conditioning system according to any one of claims 1 to 4, wherein the electricity price is displayed on the controller.

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