JP2001263857A - Cooling/heating water heater and its control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a cooling/heating water heater utilizing refrigeration cycle in which pressure loss of a heat exchanger for hot water supply, and lowering of efficiency or reliability due to variation in the optimal filling quantity caused by variation of hot water supply conditions are improved and controllability of air conditioning and hot water supply capacity is enhanced. SOLUTION: A heat exchanger for hot water supply is coupled with a bypass pipe 1 provided with a flow regulation valve 2 and, since the heat exchanger for hot water supply is bypassed, pressure loss is reduced and the efficiency is improved. Since the influence of a hot water supply cycle exhibiting a significant variation is reduced by regulating the quantity of bypass, a cooling/heating and hot water supplying apparatus in which the capacity can be distributed between hot water supply and air conditioning while ensuring operation of stabilized cycle is obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heating and cooling water heater using a refrigeration cycle.

[0002]

2. Description of the Related Art Conventionally, as this kind of cooling / heating hot water supply apparatus, one described in Japanese Patent Application Laid-Open No. 5-288427 is known.

[0003] The cooling and heating water heater will be described below with reference to FIG.
This will be described with reference to FIG.

As shown in FIG. 20, a compressor 101, a hot water supply heat exchanger 102, an outdoor heat exchanger 103, an air conditioning heat exchanger 104, an expansion mechanism 105, a four-way valve 106, an outdoor heat exchanger blower 107, The well-known refrigeration cycle is constituted by connecting with piping by providing the hot water supply pump 108.

During cooling, the high-pressure refrigerant gas compressed by the compressor 101 passes through the hot-water supply heat exchanger 102, passes through the outdoor heat exchanger 103 by the four-way valve 106, and radiates heat in each of the heat exchangers. And becomes a high-pressure liquid refrigerant. The high-pressure liquid refrigerant is decompressed by the expansion mechanism 105 and becomes a low-pressure two-phase refrigerant. The heat is absorbed from a medium such as water or air by the air-conditioning heat exchanger 104 to become a low-pressure gas refrigerant. 101
To form a well-known refrigeration cycle. As a result, the room is cooled by a medium such as water or air, and the exhaust heat can be used for hot water supply to enable efficient operation.

During heating, high-pressure refrigerant gas compressed by the compressor 101 passes through the hot water supply heat exchanger 102 and passes through the four-way valve 1.
At 06, the refrigerant passes through the air-conditioning heat exchanger 104, radiates heat in each of the heat exchangers, and becomes high-pressure liquid refrigerant. The high-pressure liquid refrigerant is decompressed by the expansion mechanism 105, becomes a low-pressure two-phase refrigerant, absorbs heat in the outdoor heat exchanger 103, becomes a low-pressure gas refrigerant, is sucked into the compressor 101 by the four-way valve 106, and Form a cycle. Thereby, the operation which can perform heating and hot water supply simultaneously is enabled.

In the simultaneous operation of cooling and hot water supply, the air volume of the outdoor heat exchanger blower 107 is generally proportionally controlled by the discharge pressure of the compressor 101, and the outdoor heat exchanger blower 107 is set. Triggered when pressure exceeds

[0008]

In such a conventional cooling and heating hot water supply system, firstly, high pressure refrigerant gas always passes through the hot water supply heat exchanger even when the hot water supply operation is not required, so that the efficiency is reduced due to the pressure loss. There is a problem that is reduced.

Secondly, since the refrigerant at the outlet of the heat exchanger for hot water supply is in a liquid state or a gas state depending on the hot water supply condition, the optimum filling amount in the cycle varies, and the efficiency decreases and the cycle becomes unstable. There is a problem that reliability is reduced. Further, when the hot water supply load is large when cooling and hot water supply are simultaneously operated, there is a problem that the condensing pressure is reduced and the evaporation pressure is reduced, and the reliability of the air conditioning heat exchanger is reduced due to freezing.

[0010] Thirdly, there is a problem that comfort is improved by hot water supply and air conditioning capacity distribution.

Fourth, a sudden change in the capacity of the outdoor heat exchanger that occurs when the blower for the outdoor heat exchanger is started during cooling, and the outdoor heat exchanger that should be a condenser depending on the outside air temperature acts as an evaporator. And there is a problem that reliability is reduced due to instability of the cycle.

The present invention has been made to solve the above-mentioned conventional problems, and it is possible to suppress a decrease in efficiency due to a pressure loss in a heat exchanger for hot water supply, and to suppress a change in an optimum filling amount in a cycle. It is possible to suppress a decrease in reliability due to a decrease in efficiency, instability of the cycle and freezing of the air-conditioning heat exchanger, and to improve comfort by hot water supply and air-conditioning capacity distribution. Provided is a cooling and heating water heater that suppresses a sudden change in outdoor heat exchanger capacity that occurs when a heat exchanger blower is started, and prevents an outdoor heat exchanger that should be a condenser depending on the outside air temperature from acting as an evaporator. It is intended to be.

[0013]

SUMMARY OF THE INVENTION In order to achieve the above object, a cooling and heating hot water supply apparatus of the present invention is provided with a pipe for bypassing a hot water supply heat exchanger.

According to the present invention, a decrease in efficiency due to a pressure loss in the hot water supply heat exchanger can be suppressed, and a decrease in efficiency due to fluctuations in the optimum filling amount within a cycle and reliability due to instability of the cycle. Thus, it is possible to obtain a cooling and heating hot water supply device that can suppress the decrease in the temperature and can improve the comfort by distributing the hot water supply and the air conditioning capacity.

Another means is to provide a flow control valve in a pipe bypassing the hot water supply heat exchanger.

According to the present invention, it is possible to suppress a decrease in efficiency due to a pressure loss in the heat exchanger for hot water supply, and a decrease in efficiency due to a variation in an optimum filling amount in a cycle and a reliability due to unstable cycle. Thus, it is possible to obtain a cooling and heating hot water supply apparatus capable of suppressing a decrease in the cooling performance and improving the comfort by distributing the hot water supply and the air conditioning capacity.

Further, another means is to provide a temperature detecting means at the refrigerant inlet / outlet of the hot water supply heat exchanger, and to control the operation of the flow regulating valve according to this value.

According to the present invention, a decrease in efficiency due to a pressure loss in the heat exchanger for hot water supply can be suppressed, and a decrease in efficiency due to a fluctuation in an optimum filling amount within a cycle and a decrease in reliability due to instability of the cycle. Thus, it is possible to obtain a cooling and heating hot water supply apparatus capable of suppressing a decrease in the cooling performance and improving the comfort by distributing the hot water supply and the air conditioning capacity.

Still another means is to provide a temperature detecting means at both or either of the hot water inlet and outlet of the hot water supply heat exchanger, and to control the operation of the flow regulating valve according to this value.

According to the present invention, a decrease in efficiency due to a pressure loss in the heat exchanger for hot water supply can be suppressed, and a decrease in efficiency due to a fluctuation in an optimum filling amount in a cycle and a reliability due to instability of the cycle. Thus, it is possible to obtain a cooling and heating hot water supply apparatus capable of suppressing a decrease in the cooling performance and improving the comfort by distributing the hot water supply and the air conditioning capacity.

Still another means is to control the operation of the flow regulating valve according to the rank for requesting hot water supply capacity and the rank for requesting air conditioning capacity.

According to the present invention, it is possible to suppress a decrease in efficiency due to a pressure loss in the heat exchanger for hot water supply, and a decrease in efficiency due to a fluctuation in an optimum filling amount in a cycle and a reliability due to an unstable cycle. Thus, it is possible to obtain a cooling and heating hot water supply apparatus capable of suppressing a decrease in the cooling performance and improving the comfort by distributing the hot water supply and the air conditioning capacity.

The other means may be provided with time and / or outside air temperature detecting means, and adjust the flow rate according to the value of the time and / or the outside air temperature, the hot water supply capacity required rank and the air conditioning capacity required rank. It controls the operation of the valve.

According to the present invention, it is possible to suppress a decrease in efficiency due to a pressure loss in the hot water supply heat exchanger, and to reduce a decrease in efficiency due to a change in an optimum filling amount in a cycle and a reliability due to an unstable cycle. Thus, it is possible to obtain a cooling and heating hot water supply apparatus capable of suppressing a decrease in the cooling performance and improving the comfort by distributing the hot water supply and the air conditioning capacity.

Another means is to provide a pressure detecting means at either the compressor suction or the refrigerant inlet / outlet of the air-conditioning heat exchanger, and to control the operation of the flow regulating valve according to this value.

According to the present invention, it is possible to suppress a decrease in efficiency due to a pressure loss in the heat exchanger for hot water supply, and to reduce a decrease in efficiency due to a variation in an optimum filling amount in a cycle and a reliability due to unstable cycle. Thus, it is possible to obtain a cooling and heating hot water supply apparatus capable of suppressing a decrease in the cooling performance and improving the comfort by distributing the hot water supply and the air conditioning capacity.

Another means is to provide a temperature detecting means for both or one of the refrigerant and the water temperature of the air-conditioning heat exchanger, and to control the operation of the flow regulating valve according to this value.

According to the present invention, it is possible to suppress a decrease in efficiency due to a pressure loss in the heat exchanger for hot water supply, and to reduce a decrease in efficiency due to a fluctuation of an optimum filling amount in a cycle and a reliability due to instability of a cycle. Thus, it is possible to obtain a cooling and heating hot water supply apparatus capable of suppressing a decrease in the cooling performance and improving the comfort by distributing the hot water supply and the air conditioning capacity.

Another means is provided with means for detecting the degree of supercooling of the outdoor unit heat exchanger, and controls the operation of the flow regulating valve according to this value.

According to the present invention, a decrease in efficiency due to a pressure loss in the heat exchanger for hot water supply can be suppressed, and a decrease in efficiency due to a change in the optimum filling amount in the cycle and a reliability due to instability of the cycle. Thus, it is possible to obtain a cooling and heating hot water supply apparatus capable of suppressing a decrease in the cooling performance and improving the comfort by distributing the hot water supply and the air conditioning capacity.

Another means is to provide a pipe for bypassing the hot water supply heat exchanger, and to provide a three-way valve at a bypass branch portion on the refrigerant inlet side of the hot water supply heat exchanger.

According to the present invention, there is provided a cooling and heating hot water supply apparatus capable of suppressing a decrease in efficiency due to a pressure loss in the hot water supply heat exchanger.

Another means is to provide a pipe for bypassing the heat exchanger for hot water supply, and to provide a three-way valve at a bypass junction on the refrigerant outlet side of the heat exchanger for hot water supply.

According to the present invention, there is provided a cooling and heating hot water supply apparatus capable of suppressing a decrease in efficiency due to a pressure loss in the hot water supply heat exchanger.

Still another means is to provide a temperature detecting means at the refrigerant inlet / outlet of the hot water supply heat exchanger, and to control the amount of hot water in the hot water supply heat exchanger based on this value.

According to the present invention, it is possible to suppress a decrease in efficiency due to a pressure loss in the heat exchanger for hot water supply, a decrease in efficiency due to a variation in an optimum filling amount within a cycle, and a reliability due to an unstable cycle. Thus, it is possible to obtain a cooling and heating hot water supply apparatus capable of suppressing a decrease in the cooling performance and improving the comfort by distributing the hot water supply and the air conditioning capacity.

Still another means is to provide a temperature detecting means at both or either of the hot water inlet and outlet of the hot water supply heat exchanger, and to control the amount of hot water in the hot water supply heat exchanger based on this value.

According to the present invention, it is possible to suppress the decrease in efficiency due to the pressure loss in the heat exchanger for hot water supply, and to reduce the efficiency due to the fluctuation of the optimum filling amount in the cycle and the reliability due to the instability of the cycle. Thus, it is possible to obtain a cooling and heating hot water supply apparatus capable of suppressing a decrease in the cooling performance and improving the comfort by distributing the hot water supply and the air conditioning capacity.

Another means is to provide a pressure detecting means at either the compressor suction or the refrigerant inlet / outlet of the air-conditioning heat exchanger, and control the amount of hot water in the hot-water supply heat exchanger according to this value.

According to the present invention, it is possible to suppress a decrease in efficiency due to a pressure loss in the heat exchanger for hot water supply, a decrease in efficiency due to a fluctuation in an optimum filling amount in a cycle, and a reduction in reliability due to an unstable cycle. Thus, it is possible to obtain a cooling and heating hot water supply apparatus capable of suppressing a decrease in the cooling performance and improving the comfort by distributing the hot water supply and the air conditioning capacity.

Another means is to provide a temperature detecting means for either or both of the refrigerant and the water temperature of the air-conditioning heat exchanger, and to control the amount of hot water and water for the hot-water supply heat exchanger based on this value.

According to the present invention, a decrease in efficiency due to a pressure loss in the heat exchanger for hot water supply can be suppressed, and a decrease in efficiency due to a fluctuation in the optimum filling amount in the cycle and a reliability due to instability of the cycle. Thus, it is possible to obtain a cooling and heating hot water supply apparatus capable of suppressing a decrease in the cooling performance and improving the comfort by distributing the hot water supply and the air conditioning capacity.

Another means is provided with means for detecting the degree of supercooling of the outdoor unit heat exchanger, and controls the amount of hot water in the hot water supply heat exchanger based on this value.

According to the present invention, a decrease in efficiency due to a pressure loss in the heat exchanger for hot water supply can be suppressed, and a decrease in efficiency due to a variation in the optimum filling amount in the cycle and a decrease in reliability due to instability of the cycle. Thus, it is possible to obtain a cooling and heating hot water supply apparatus capable of suppressing a decrease in the cooling performance and improving the comfort by distributing the hot water supply and the air conditioning capacity.

Another means is to provide a temperature detecting means for the hot water and the outside air of the heat exchanger for hot water supply, and to control the blower for the outdoor heat exchanger based on this value.

According to the present invention, a sudden change in the capacity of the outdoor heat exchanger that occurs when the blower for the outdoor heat exchanger is started during cooling is suppressed, and the outdoor heat exchanger that should be a condenser is evaporated depending on the outside air temperature. An air-conditioning and hot-water supply device that does not act as a heater can be obtained.

Another means is to provide a temperature detecting means for the refrigerant and the outside air of the heat exchanger for hot water supply, and to control the blower for the outdoor heat exchanger according to this value.

According to the present invention, a sudden change in the capacity of the outdoor heat exchanger, which occurs when the blower for the outdoor heat exchanger is started during cooling, is suppressed, and the outdoor heat exchanger, which should be a condenser, evaporates depending on the outside air temperature. An air-conditioning and hot-water supply device that does not act as a heater can be obtained.

Further, another means is to provide a temperature detecting means for the refrigerant and the outside air of the outdoor heat exchanger, and to control the blower for the outdoor heat exchanger according to this value.

According to the present invention, a sudden change in the capacity of the outdoor heat exchanger, which occurs when the blower for the outdoor heat exchanger is started during cooling, is suppressed, and the outdoor heat exchanger, which should be a condenser, evaporates depending on the outside air temperature. An air-conditioning and hot-water supply device that does not act as a heater can be obtained.

[0051]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention provides a pipe for bypassing a heat exchanger for hot water supply. Since the pipe bypasses the heat exchanger for hot water supply, pressure loss is reduced and high pressure is reduced. Efficiency is improved by reducing the workload. Also, when the temperature of the hot water drops, the refrigerant in the heat exchanger for hot water is easily condensed, so that the pressure loss is reduced and the refrigerant flows more. There is an effect that the comfort by the ability distribution is improved.

Further, a flow control valve is provided in a pipe that bypasses the hot water supply heat exchanger. In the case of air-conditioning alone operation, the high pressure compressed by the compressor is opened by fully opening the flow control valve. The refrigerant gas is diverted to the bypass pipe and the hot water supply heat exchanger, and has the effect that the pressure loss is reduced and the high pressure is reduced, whereby the work efficiency of the compressor is reduced and the efficiency is improved. In addition, in the case of the hot water supply alone operation, the same operation as in the related art can be performed by fully closing the flow control valve. When heating and hot water supply are operated at the same time, the air conditioning capacity increases and the hot water supply capacity decreases when the flow control valve is opened, and the air conditioning capacity decreases when the flow control valve is closed. It has the effect of increasing. In the case of simultaneous operation of cooling and hot water supply,
As in the case of heating, the hot water supply capacity decreases when the flow control valve is opened, and the hot water supply capacity increases when the flow control valve is closed.However, by preventing the flow control valve from closing below a certain level, The two-phase refrigerant always flows in the outdoor heat exchanger, and suppresses the fluctuation of the optimal filling amount in the cycle. further,
By always having a condensing load in the outdoor heat exchanger, it is possible to maintain a certain condensing pressure even when the hot water supply load is high, and to improve the freezing of the air conditioning heat exchanger due to an unnecessary decrease in the evaporating pressure. Having.

A three-way valve is provided in the bypass branch on the refrigerant inlet side of the hot water supply heat exchanger. By bypassing the air-conditioning alone, the high-pressure refrigerant gas compressed by the compressor is removed. The flow is diverted to the bypass pipe and the hot water supply heat exchanger, and the pressure loss is reduced and the high pressure is reduced, so that the efficiency of the operation is improved by reducing the work of the compressor. In addition, when the hot water supply operation is performed, the same operation as the conventional operation can be performed by not bypassing the hot water supply operation.

Further, a three-way valve is provided at a bypass branch on the refrigerant outlet side of the hot water supply heat exchanger. When air-conditioning is operated alone, the high-pressure refrigerant gas compressed by the compressor is bypassed. The flow is diverted to the bypass pipe and the hot water supply heat exchanger, and the pressure loss is reduced and the high pressure is reduced, so that the efficiency of the operation is improved by reducing the work of the compressor. In addition, in the case of hot water supply operation, by not bypassing, it has the effect of being able to perform the same operation as before, and
The pressure loss of the three-way valve does not affect the performance of the heat exchanger for hot water supply, and the liquid refrigerant or the two-phase refrigerant condensed in the three-way valve flows. It has the action of:

A three-way valve is provided at the bypass branch on the refrigerant outlet side of the hot water supply heat exchanger, and means for adjusting the amount of hot water is provided for the hot water supply heat exchanger. By doing so, the high-pressure refrigerant gas compressed by the compressor is diverted to the bypass pipe and the heat exchanger for hot water supply, and the pressure loss is reduced and the high pressure is reduced, so that the efficiency is improved by reducing the work of the compressor. Having. In addition, when the hot water supply alone operation is performed, the operation similar to the conventional operation can be performed by maximizing the amount of hot water by not bypassing the hot water supply. Also, when heating and hot water supply are operated at the same time, the air conditioning capacity increases and the hot water supply capacity decreases when control is performed in a direction to reduce the amount of hot water, and the air conditioning capacity decreases and the hot water supply capacity decreases when control is performed in a direction that increases the amount of hot water. It has the effect of increasing. In addition, when cooling and hot water supply are operated simultaneously, hot water supply capacity decreases when control is performed in a direction to decrease the amount of hot water as in heating, and hot water supply capacity increases when control is performed in a direction that increases the amount of hot water, but a certain level or more. By controlling the amount of hot water so as not to provide the hot water supply capacity, the two-phase refrigerant always flows in the outdoor heat exchanger, and the fluctuation of the optimal filling amount in the cycle is suppressed. Furthermore, by always having a condensation load in the outdoor heat exchanger, a certain degree of condensation pressure can be maintained even when the hot water supply load is high, and the freezing of the air conditioning heat exchanger due to an unnecessary decrease in the evaporation pressure is improved. It has the action of:

Further, a temperature detecting means is provided for the hot water or the refrigerant of the hot water supply heat exchanger or the refrigerant of the outdoor heat exchanger and the outside air,
This value controls the start of the outdoor heat exchanger blower, and when simultaneously operating cooling and hot water supply,
By starting the blower for the outdoor heat exchanger when the temperature of the outdoor heat exchanger becomes almost equal to the outside air temperature, the rapid change of the outdoor heat exchanger capacity caused by the start of the blower for the outdoor heat exchanger is suppressed, and the condensation is performed. It has the effect of suppressing the fluctuation of the cycle due to the change in the balance between the capacity and the evaporation capacity.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0058]

(Embodiment 1) FIG. 1 shows a cycle configuration diagram of a cooling and heating water heater according to the present invention. Compressor 101, hot water supply heat exchanger 102, outdoor heat exchanger 103, and air conditioning heat exchanger 104
A cooling / heating water heater including an expansion mechanism 105, a four-way valve 106, an outdoor heat exchanger blower 107, and a hot water pump 108 is provided with a bypass pipe 1 for bypassing the hot water heat exchanger 102.

In the above configuration, the high-pressure refrigerant gas compressed by the compressor 101 is supplied to the bypass pipe 1 and the hot water supply heat exchanger 10.
2, the pressure loss is reduced and the high pressure is reduced, so that the efficiency is improved by reducing the work of the compressor. Also, when the temperature of the hot water drops, the refrigerant in the heat exchanger for hot water is easily condensed, so that the pressure loss is reduced and the refrigerant flows more. The comfort by the ability distribution is improved.

(Embodiment 2) FIG. 2 shows a cycle configuration diagram of a cooling and heating water heater according to the present invention. Compressor 101, hot water supply heat exchanger 102, outdoor heat exchanger 103, and air conditioning heat exchanger 10
4, an expansion mechanism 105, a four-way valve 106, an outdoor heat exchanger blower 107 and a hot water supply pump 108, a bypass pipe 1 for bypassing the hot water supply heat exchanger 102, and a flow control valve 2 for the bypass pipe 1. And a hot water supply heat exchanger refrigerant inlet temperature sensor 3 and a hot water supply heat exchanger refrigerant outlet temperature sensor 4 are provided as temperature detecting means at the refrigerant inlet / outlet of the hot water supply heat exchanger 102.
Is provided with a flow control valve controller 5 for controlling the operation of.

In the above configuration, in the case of the air-conditioning independent operation, the compressor 1 is opened by fully opening the flow control valve 2.
The high-pressure refrigerant gas compressed in 01 is diverted to the bypass pipe 1 and the hot water supply heat exchanger 102, and the pressure loss is reduced and the high pressure is reduced, so that the efficiency of the compressor is reduced due to a reduction in the workload of the compressor.

In the case of the hot water supply alone operation, the operation similar to the conventional operation can be performed by fully closing the flow control valve 2.

When the heating and hot water supply are operated simultaneously, a set value is given to the hot water supply heat exchanger refrigerant outlet temperature corresponding to the value of the hot water supply heat exchanger refrigerant inlet temperature sensor 3, and the hot water supply heat exchanger When the value of the refrigerant outlet temperature sensor 4 is higher than the set value, the flow control valve controller 5 controls the flow control valve 2 so that the flow control valve 2 is opened, and when the value of the hot water supply heat exchanger refrigerant outlet temperature sensor 4 is lower than the set value, the flow rate is lower. By controlling the flow control valve 2 in the closing direction by the control valve controller 5,
The capacity distribution of hot water supply and air conditioning can be performed.

When cooling and hot water supply are operated at the same time, the flow control valve 2 is controlled in the same manner as in the simultaneous operation of heating and hot water supply, and the flow control valve 2 is not closed below a certain value. In addition, since the two-phase refrigerant always flows through the outdoor heat exchanger 103, the fluctuation of the optimal charge in the cycle is suppressed. Further, by always having the outdoor heat exchanger 103 have a condensing load, it is possible to maintain a certain condensing pressure even at a high load of hot water supply, and to improve the freezing of the air conditioning heat exchanger due to an unnecessary decrease in the evaporating pressure. You can do it.

(Embodiment 3) FIG. 3 shows a cycle configuration diagram of a cooling and heating water heater according to the present invention. Compressor 101, hot water supply heat exchanger 102, outdoor heat exchanger 103, and air conditioning heat exchanger 10
4, an expansion mechanism 105, a four-way valve 106, an outdoor heat exchanger blower 107 and a hot water supply pump 108, a bypass pipe 1 for bypassing the hot water supply heat exchanger 102, and a flow control valve 2 for the bypass pipe 1. And a hot water supply heat exchanger water inlet temperature sensor 6 and a hot water supply heat exchanger water outlet temperature sensor 7 are provided at the hot water inlet and outlet of the hot water supply heat exchanger 102 as temperature detecting means. Is provided with a flow control valve controller 5 for controlling the pressure.

In the above configuration, in the case of the air-conditioning independent operation, the compressor 1 is opened by fully opening the flow control valve 2.
The high-pressure refrigerant gas compressed in 01 is diverted to the bypass pipe 1 and the hot water supply heat exchanger 102, and the pressure loss is reduced and the high pressure is reduced, so that the efficiency of the compressor is reduced due to a reduction in the workload of the compressor.

In the case of the hot water supply alone operation, the operation similar to the conventional operation can be performed by fully closing the flow control valve 2.

When the heating and hot water supply are operated simultaneously, a set value is given to the hot water supply heat exchanger water outlet temperature in accordance with the value of the hot water supply heat exchanger water inlet temperature sensor 6, and the hot water supply heat exchanger When the value of the water outlet temperature sensor 7 is higher than the set value, the flow control valve controller 5 controls the flow control valve 2 to open, and when the value of the hot water supply heat exchanger water outlet temperature sensor 7 is lower than the set value, the flow rate By controlling the flow control valve 2 in the closing direction by the control valve controller 5, the capacity distribution of hot water supply and air conditioning can be performed.

When the cooling and hot water supply are operated simultaneously, the flow control valve 2 is controlled in the same manner as in the simultaneous operation of heating and hot water supply, and the flow control valve 2 is not closed below a certain value. In addition, since the two-phase refrigerant always flows through the outdoor heat exchanger 103, the fluctuation of the optimal charge in the cycle is suppressed. Further, by always having the outdoor heat exchanger 103 have a condensing load, it is possible to maintain a certain condensing pressure even at a high load of hot water supply, and to improve the freezing of the air conditioning heat exchanger due to an unnecessary decrease in the evaporating pressure. You can do it.

(Embodiment 4) FIG. 4 shows a cycle configuration diagram of a cooling and heating water heater according to the present invention. Compressor 101, hot water supply heat exchanger 102, outdoor heat exchanger 103, and air conditioning heat exchanger 10
4, an expansion mechanism 105, a four-way valve 106, an outdoor heat exchanger blower 107 and a hot water supply pump 108, a bypass pipe 1 for bypassing the hot water supply heat exchanger 102, and a flow control valve 2 for the bypass pipe 1. And an air-conditioning capacity required rank setting device 8 and a hot water supply capacity required rank setting device 9 are provided, and a flow control valve controller 5 for controlling the operation of the flow control valve 2 based on the values is provided.

In the above configuration, in the case of the air-conditioning independent operation, the compressor 1 is opened by fully opening the flow control valve 2.
The high-pressure refrigerant gas compressed in 01 is diverted to the bypass pipe 1 and the hot water supply heat exchanger 102, and the pressure loss is reduced and the high pressure is reduced, so that the efficiency of the compressor is reduced due to a reduction in the workload of the compressor.

In the case of the hot water supply alone operation, the same operation as the conventional operation can be performed by fully closing the flow control valve 2.

When the heating and hot water supply are operated simultaneously, the flow control valve 2 is controlled by the flow control valve controller 5 by a calculation formula using the air conditioning capacity request rank setting device 8 and the hot water supply capacity request rank setting device 9 as parameters. Control. Basically, when the value of the air conditioning capacity request rank setting device 8 is larger than the value of the hot water supply capacity request rank setting device 9,
Air conditioning capacity required rank setting device 8
Is smaller than the value of the hot water supply capacity request rank setting device 9, by controlling the flow control valve 2 in the closing direction, it is possible to distribute the capacity of hot water supply and air conditioning according to the request.

When cooling and hot water supply are operated simultaneously, the value of the air conditioning capacity required rank setting device 8 is set to a constant opening regardless of the value of the hot water capacity required rank setting device 9.
Is fixed, the two-phase refrigerant always flows through the outdoor heat exchanger 103, thereby suppressing the fluctuation of the optimal charging amount in the cycle. Further, by always having the outdoor heat exchanger 103 have a condensing load, it is possible to maintain a certain condensing pressure even at a high load of hot water supply, and to improve the freezing of the air conditioning heat exchanger due to an unnecessary decrease in the evaporating pressure. You can do it.

(Embodiment 5) FIG. 5 shows a cycle configuration diagram of a cooling and heating water heater according to the present invention. Compressor 101, hot water supply heat exchanger 102, outdoor heat exchanger 103, and air conditioning heat exchanger 10
4, an expansion mechanism 105, a four-way valve 106, an outdoor heat exchanger blower 107 and a hot water supply pump 108, a bypass pipe 1 for bypassing the hot water supply heat exchanger 102, and a flow control valve 2 for the bypass pipe 1. And an air-conditioning capacity required rank setting device 8, a hot water supply capacity required rank setting device 9, a clock 10, and an outside air temperature sensor 11, and a flow control valve controller 5 that controls the operation of the flow control valve 2 based on these values. And

In the above configuration, in the case of the air-conditioning independent operation, the compressor 1 is opened by fully opening the flow control valve 2.
The high-pressure refrigerant gas compressed in 01 is diverted to the bypass pipe 1 and the hot water supply heat exchanger 102, and the pressure loss is reduced and the high pressure is reduced, so that the efficiency of the compressor is reduced due to a reduction in the workload of the compressor.

In the case of the hot water supply alone operation, the operation similar to the conventional operation can be performed by fully closing the flow control valve 2.

When the heating and hot water supply are operated simultaneously, the air conditioning capacity requirement rank setting device 8 and the hot water supply capacity requirement rank setting device 9 according to the time by the clock 10 and the outside air temperature by the outside air temperature sensor 11 are used as parameters. The flow control valve 2 is controlled by the flow control valve controller 5 according to a calculation formula. Basically, when the value of the air-conditioning capacity required rank setting device 8 is larger than the value of the hot-water capacity required rank setting device 9, the control is performed in the direction in which the flow control valve 2 is opened. When the value is smaller than the value of the required rank setting device 9, the flow control valve 2 is controlled to be closed. However, when the outside air temperature is low, the air-conditioning capacity is prioritized, and from 0:00 to 6:00 and from 11:00 to 3:00 By giving priority to the hot water supply capacity, it is possible to distribute the capacity of hot water supply and air conditioning as required and necessary.

When cooling and hot water supply are operated simultaneously, the value of the air conditioning capacity required rank setting device 8 is set to a constant opening regardless of the value of the hot water capacity required rank setting device 9.
Is fixed, the two-phase refrigerant always flows through the outdoor heat exchanger 103, thereby suppressing the fluctuation of the optimal charging amount in the cycle. Further, by always having the outdoor heat exchanger 103 have a condensing load, it is possible to maintain a certain condensing pressure even at a high load of hot water supply, and to improve the freezing of the air conditioning heat exchanger due to an unnecessary decrease in the evaporating pressure. You can do it.

(Embodiment 6) FIG. 6 shows a cycle configuration diagram of a cooling and heating water heater according to the present invention. Compressor 101, hot water supply heat exchanger 102, outdoor heat exchanger 103, and air conditioning heat exchanger 10
4, an expansion mechanism 105, a four-way valve 106, an outdoor heat exchanger blower 107 and a hot water supply pump 108, a bypass pipe 1 for bypassing the hot water supply heat exchanger 102, and a flow control valve 2 for the bypass pipe 1. Is provided, and a compressor suction pressure sensor 12 is provided.
Is provided with a flow control valve controller 5 for controlling the operation of.

In the above configuration, in the case of the air-conditioning independent operation, the compressor 1 is opened by fully opening the flow control valve 2.
The high-pressure refrigerant gas compressed in 01 is diverted to the bypass pipe 1 and the hot water supply heat exchanger 102, and the pressure loss is reduced and the high pressure is reduced, so that the efficiency of the compressor is reduced due to a reduction in the workload of the compressor.

In the case of the hot water supply alone operation, the same operation as the conventional operation can be performed by fully closing the flow control valve 2.

When the heating and hot water supply are operated simultaneously, when the value of the compressor suction pressure sensor 12 is higher than the set value, the flow control valve controller 5 controls the flow control valve 2 so that the flow control valve 2 is closed. When the value of the suction pressure sensor 12 is lower than the set value, the flow control valve controller 5 controls the flow control valve 2 to open so that the capacity distribution of hot water supply and air conditioning can be performed.

When cooling and hot water supply are operated simultaneously, the flow control valve 2 is controlled in the same manner as in simultaneous operation of heating and hot water supply, and the flow control valve 2 is not closed below a certain level. In addition, since the two-phase refrigerant always flows through the outdoor heat exchanger 103, the fluctuation of the optimal charge in the cycle is suppressed. Further, by always having the outdoor heat exchanger 103 have a condensing load, it is possible to maintain a certain condensing pressure even at a high load of hot water supply, and to improve the freezing of the air conditioning heat exchanger due to an unnecessary decrease in the evaporating pressure. You can do it.

(Embodiment 7) FIG. 7 shows a cycle configuration diagram of a cooling and heating water heater of the present invention. Compressor 101, hot water supply heat exchanger 102, outdoor heat exchanger 103, and air conditioning heat exchanger 10
4, an expansion mechanism 105, a four-way valve 106, an outdoor heat exchanger blower 107 and a hot water supply pump 108, a bypass pipe 1 for bypassing the hot water supply heat exchanger 102, and a flow control valve 2 for the bypass pipe 1. The air conditioner heat exchanger water temperature sensor 13 and the air conditioner heat exchanger refrigerant temperature sensor 14 are provided, and a flow control valve controller 5 that controls the operation of the flow control valve 2 based on the values is provided.

In the above configuration, in the case of the air-conditioning independent operation, the compressor 1 is opened by fully opening the flow control valve 2.
The high-pressure refrigerant gas compressed in 01 is diverted to the bypass pipe 1 and the hot water supply heat exchanger 102, and the pressure loss is reduced and the high pressure is reduced, so that the efficiency of the compressor is reduced due to a reduction in the workload of the compressor.

In the case of the hot water supply alone operation, the same operation as the conventional operation can be performed by fully closing the flow control valve 2.

When the heating and hot water supply are operated simultaneously, the flow rate adjustment is performed when the value of the air conditioner heat exchanger water temperature sensor 13 is higher than the set value regardless of the value of the air conditioner heat exchanger refrigerant temperature sensor 14. The flow control valve 2 is controlled by the valve controller 5 so as to close, and when the air-conditioning heat exchanger water temperature sensor 13 is lower than the set value, the flow control valve controller 5 controls the flow control valve 2 to open. Therefore, the capacity distribution of hot water supply and air conditioning can be performed.

When cooling and hot water supply are operated simultaneously, the air conditioner heat exchanger refrigerant temperature is set according to the value of the air conditioner heat exchanger water temperature sensor 13 and the air conditioner heat exchanger refrigerant temperature sensor 14 is set. When the value is higher than the set value, the flow control valve controller 5 controls the flow control valve 2 in the closing direction, and when the value of the air conditioner heat exchanger refrigerant temperature sensor 14 is lower than the set value, the flow control valve controller 5 performs control. By controlling the flow control valve 2 to open and preventing the flow control valve 2 from closing below a certain level, the outdoor heat exchanger 103
The fluctuation of the optimal charge in the cycle is suppressed by always flowing the two-phase refrigerant. Further, by always having the outdoor heat exchanger 103 have a condensing load, it is possible to maintain a certain condensing pressure even at a high load of hot water supply, and to improve the freezing of the air conditioning heat exchanger due to an unnecessary decrease in the evaporating pressure. You can do it.

(Eighth Embodiment) FIG. 8 shows a cycle configuration diagram of a cooling and heating water heater according to the present invention. Compressor 101, hot water supply heat exchanger 102, outdoor heat exchanger 103, and air conditioning heat exchanger 10
4, an expansion mechanism 105, a four-way valve 106, an outdoor heat exchanger blower 107 and a hot water supply pump 108, a bypass pipe 1 for bypassing the hot water supply heat exchanger 102, and a flow control valve 2 for the bypass pipe 1. The outdoor heat exchanger refrigerant temperature sensor 15 and the outdoor heat exchanger refrigerant pressure sensor 16 are provided as means for detecting the degree of supercooling of the outdoor unit heat exchanger 103 during the cooling operation, and the operation of the flow regulating valve 2 is controlled by these values. The flow control valve controller 5 is provided.

In the above configuration, in the case of the air-conditioning independent operation, the compressor 1 is opened by fully opening the flow control valve 2.
The high-pressure refrigerant gas compressed in 01 is diverted to the bypass pipe 1 and the hot water supply heat exchanger 102, and the pressure loss is reduced and the high pressure is reduced, so that the efficiency of the compressor is reduced due to a reduction in the workload of the compressor.

In the case of the hot water supply alone operation, the operation similar to the conventional operation can be performed by fully closing the flow control valve 2.

When the heating and hot water supply are simultaneously operated, the compressor 1 is opened by opening the flow control valve 2 fully.
The high-pressure refrigerant gas compressed in 01 is diverted to the bypass pipe 1 and the hot water supply heat exchanger 102, and the pressure loss is reduced and the high pressure is reduced, so that the efficiency of the compressor is reduced due to the reduced work load.
Also, when the temperature of the hot water drops, the refrigerant in the heat exchanger for hot water is easily condensed, so that the pressure loss is reduced and the refrigerant flows more. The comfort by the ability distribution is improved.

When cooling and hot water supply are operated simultaneously, the outdoor heat exchanger refrigerant temperature is set in accordance with the value of the outdoor heat exchanger refrigerant pressure sensor 16, and the value of the outdoor heat exchanger refrigerant temperature sensor 15 is set. When the flow rate is higher than the set value (when the degree of supercooling is not lower than the set value), the flow rate control valve controller 5 controls the flow rate control valve 2 to close, and the value of the outdoor heat exchanger refrigerant temperature sensor 15 is lower than the set value. At the time (when the degree of supercooling is higher than the setting), the flow rate control valve 2 is controlled by the flow rate control valve controller 5 so that the flow rate control valve 2 is opened, and the flow rate control valve 2 is not closed below a certain level, thereby preventing the outdoor heat. Since the two-phase refrigerant always flows through the exchanger 103, the fluctuation of the optimal charging amount in the cycle is suppressed. Further, by always having the outdoor heat exchanger 103 have a condensing load, it is possible to maintain a certain condensing pressure even at a high load of hot water supply, and to improve the freezing of the air conditioning heat exchanger due to an unnecessary decrease in the evaporating pressure. You can do it.

(Embodiment 9) FIG. 9 shows a cycle configuration diagram of a cooling and heating water heater according to the present invention. Compressor 101, hot water supply heat exchanger 102, outdoor heat exchanger 103, and air conditioning heat exchanger 10
4, the expansion mechanism 105, the four-way valve 106, the outdoor heat exchanger blower 107, and the hot water supply pump 108, the cooling / heating hot water supply apparatus, the bypass pipe 1 that bypasses the hot water supply heat exchanger 102, and the refrigerant of the hot water supply heat exchanger 102 A three-way valve 17 is provided at the bypass branch on the inlet side, and a hot water supply heat exchanger refrigerant inlet temperature sensor 3 and a hot water supply heat exchanger refrigerant outlet temperature sensor 4 are provided as temperature detecting means at the refrigerant inlet and outlet of the hot water supply heat exchanger 102.
The hot water supply pump controller 1 is used as a means for controlling the amount of hot water in the hot water supply heat exchanger 102 based on this value.
8 is provided.

In the above configuration, when the air conditioner is operated alone, the high-pressure refrigerant gas compressed by the compressor 101 is supplied to the three-way valve 1.
By flowing into the bypass pipe 1 at 7 and bypassing the hot water supply heat exchanger 102, the pressure loss is reduced and the high pressure is reduced, so that the efficiency is improved due to a reduction in the work amount of the compressor.

In the case of operation requiring hot water supply,
The hot water supply operation can be performed by flowing the high-pressure refrigerant gas compressed by the compressor 101 to the hot water supply heat exchanger 102 by the three-way valve 17.

[0098] In the case of the hot water supply alone operation, the same operation as the conventional one can be performed by maximizing the output of the hot water supply pump 108 by the hot water supply pump controller 18.

When the heating and hot water supply are operated at the same time, a set value is given to the hot water supply heat exchanger refrigerant outlet temperature corresponding to the value of the hot water supply heat exchanger refrigerant inlet temperature sensor 3, and the hot water supply heat exchanger When the value of the refrigerant outlet temperature sensor 4 is higher than the set value, the hot water supply pump controller 18 controls the output of the hot water supply pump 108 to increase, and the value of the hot water supply heat exchanger refrigerant outlet temperature sensor 4 is lower than the set value. When the hot water supply pump controller 18 controls the output of the hot water supply pump 108 to decrease, the capacity distribution between the hot water supply and the air conditioning can be performed.

When the cooling operation and the hot water supply are simultaneously operated, the pump 10 for hot water supply is operated similarly to the simultaneous operation of the heating and the hot water supply.
8, the hot water supply capacity is suppressed, and the outdoor heat exchanger 103 is always provided with a condensing load, so that a certain level of condensing pressure can be maintained and the evaporating pressure is reduced by an unnecessary amount. The freezing of the heat exchanger can be improved.

(Embodiment 10) FIG. 10 shows a cycle configuration diagram of a cooling and heating water heater according to the present invention. A cooling and heating water heater including a compressor 101, a heat exchanger for hot water supply 102, an outdoor heat exchanger 103, a heat exchanger for air conditioning 104, an expansion mechanism 105, a four-way valve 106, a blower 107 for the outdoor heat exchanger, and a hot water pump 108. A three-way valve 17 is provided at a bypass pipe 1 for bypassing the hot water supply heat exchanger 102 and a bypass junction on the refrigerant outlet side of the hot water supply heat exchanger 102, and a hot water supply as a temperature detecting means is provided at a hot water inlet / outlet of the hot water supply heat exchanger 102. Heat exchanger water inlet temperature sensor 6 and hot water supply heat exchanger water outlet temperature sensor 7
The hot water supply pump controller 1 is used as a means for controlling the amount of hot water in the hot water supply heat exchanger 102 based on this value.
8 is provided.

In the above configuration, when the air conditioner is operated alone, the high-pressure refrigerant gas compressed by the compressor 101 is supplied to the three-way valve 1.
By flowing into the bypass pipe 1 at 7 and bypassing the hot water supply heat exchanger 102, the pressure loss is reduced and the high pressure is reduced, so that the efficiency is improved due to a reduction in the work amount of the compressor.

In the case of operation requiring hot water supply,
By flowing the high-pressure refrigerant gas compressed by the compressor 101 to the hot water supply heat exchanger 102 by the three-way valve 17, the same operation as the conventional operation can be performed. At this time, the three-way valve 17
Is located on the outlet side of the heat exchanger 102 for hot water supply,
Pressure loss does not affect the performance deterioration of the hot water supply heat exchanger 102 and the liquid refrigerant or the two-phase refrigerant condensed in the three-way valve 17 flows, so the pressure loss of the three-way valve 17 is reduced, thereby improving the efficiency reduction. Will be done.

In the case of the hot water supply independent operation, the same operation as the conventional operation can be performed by maximizing the output of the hot water supply pump 108 by the hot water supply pump controller 18.

When the heating and hot water supply are operated simultaneously, a set value is given to the hot water supply heat exchanger water outlet temperature in accordance with the value of the hot water supply heat exchanger water inlet temperature sensor 6, and the hot water supply heat exchanger When the value of the water outlet temperature sensor 7 is higher than the set value, the hot water supply pump
Of the hot water supply heat exchanger water outlet temperature sensor 7 is lower than the set value, the hot water supply pump controller 18 controls the output of the hot water supply pump 108 to decrease. And air conditioning capacity distribution.

When cooling and hot water supply are operated simultaneously, hot water supply pump 10 is operated in the same manner as in simultaneous operation of heating and hot water supply.
8, the hot water supply capacity is suppressed, and the outdoor heat exchanger 103 is always provided with a condensing load, so that a certain level of condensing pressure can be maintained and the evaporating pressure is reduced by an unnecessary amount. The freezing of the heat exchanger can be improved.

(Embodiment 11) FIG. 11 shows a cycle configuration diagram of a cooling and heating water heater according to the present invention. A cooling and heating water heater including a compressor 101, a heat exchanger for hot water supply 102, an outdoor heat exchanger 103, a heat exchanger for air conditioning 104, an expansion mechanism 105, a four-way valve 106, a blower 107 for the outdoor heat exchanger, and a hot water pump 108. A bypass pipe 1 for bypassing the hot water supply heat exchanger 102; a flow rate regulating valve 2 provided in the bypass pipe 1; a compressor suction pressure sensor 12; a means for controlling the amount of hot water in the hot water supply heat exchanger 102 based on this value. And a configuration in which a hot water supply pump controller 18 is provided.

In the above configuration, in the case of the hot water supply alone operation, the same operation as the conventional operation can be performed by maximizing the output of the hot water supply pump 108 by the hot water supply pump controller 18.

When the heating and hot water supply are operated simultaneously, when the value of the compressor suction pressure sensor 12 is higher than the set value, the hot water supply pump controller 18 controls the output of the hot water supply pump 108 to increase. When the value of the compressor suction pressure sensor 12 is lower than the set value, the hot water supply pump controller 18 controls the output of the hot water supply pump 108 so as to decrease, so that the capacity distribution of hot water supply and air conditioning can be performed.

When the cooling and hot water supply are operated simultaneously, the hot water supply pump 10 is operated in the same manner as in the simultaneous operation of heating and hot water supply.
8, the hot water supply capacity is suppressed, and the outdoor heat exchanger 103 is always provided with a condensing load, so that a certain level of condensing pressure can be maintained and the evaporating pressure is reduced by an unnecessary amount. The freezing of the heat exchanger can be improved.

(Embodiment 12) FIG. 12 shows a cycle configuration diagram of a heating and cooling water heater of the present invention. A cooling and heating water heater including a compressor 101, a heat exchanger for hot water supply 102, an outdoor heat exchanger 103, a heat exchanger for air conditioning 104, an expansion mechanism 105, a four-way valve 106, a blower 107 for the outdoor heat exchanger, and a hot water pump 108. A bypass pipe 1 for bypassing the hot water supply heat exchanger 102, a flow control valve 2 is provided on the bypass pipe 1, an air conditioner heat exchanger water temperature sensor 13 and an air conditioner heat exchanger refrigerant temperature sensor 14 are provided. Heat exchanger 1 for hot water supply
02 is provided with a hot water supply pump controller 18 as a means for controlling the amount of hot water.

In the above configuration, in the case of the hot water supply alone operation, the operation similar to the conventional operation can be performed by maximizing the output of the hot water supply pump 108 by the hot water supply pump controller 18.

When the heating and hot water supply are operated at the same time, regardless of the value of the air conditioner heat exchanger refrigerant temperature sensor 14, the value of the air conditioner heat exchanger water temperature sensor 13 is higher than the set value. The pump controller 18 controls the output of the hot water pump 108 to increase, and when the air conditioner heat exchanger water temperature sensor 13 is lower than the set value, the hot water pump controller 18 decreases the output of the hot water pump 108. By performing the control, the capacity distribution of hot water supply and air conditioning can be performed.

When the cooling and hot water supply are operated simultaneously, the air-conditioning heat exchanger refrigerant temperature is set according to the value of the air-conditioning heat exchanger water temperature sensor 13, and the air-conditioning heat exchanger refrigerant temperature sensor 14 is set. Is higher than the set value, the hot water supply pump controller 18 controls the output of the hot water supply pump 108 to increase, and the air conditioner heat exchanger refrigerant temperature sensor 1
When the value of “4” is lower than the set value, the hot water supply pump controller 18 controls the output of the hot water supply pump 108 so as to reduce the output, thereby suppressing the hot water supply capacity and the outdoor heat exchanger 103.
By always having a condensing load, it is possible to maintain a certain condensing pressure and improve the freezing of the air-conditioning heat exchanger due to an unnecessary decrease in the evaporating pressure.

(Embodiment 13) FIG. 13 shows a cycle configuration diagram of a cooling and heating water heater of the present invention. A cooling and heating water heater including a compressor 101, a heat exchanger for hot water supply 102, an outdoor heat exchanger 103, a heat exchanger for air conditioning 104, an expansion mechanism 105, a four-way valve 106, a blower 107 for the outdoor heat exchanger, and a hot water pump 108. A bypass pipe 1 for bypassing the hot water supply heat exchanger 102, and a flow rate regulating valve 2 provided on the bypass pipe 1; and an outdoor heat exchanger refrigerant temperature sensor 15 as a means for detecting the degree of supercooling of the outdoor unit heat exchanger 103 during cooling operation. An outdoor heat exchanger refrigerant pressure sensor 16 is provided, and a hot water supply pump controller 18 is provided as means for controlling the amount of hot water in the hot water supply heat exchanger 102 based on this value.

In the above configuration, in the case of hot water supply alone operation or simultaneous operation of heating and hot water supply, operation similar to the conventional operation is performed by maximizing the output of hot water supply pump 108 by hot water supply pump controller 18. I can do it.

When the cooling operation and the hot water supply operation are performed simultaneously, the outdoor heat exchanger refrigerant temperature is set according to the value of the outdoor heat exchanger refrigerant pressure sensor 16, and the value of the outdoor heat exchanger refrigerant temperature sensor 15 is adjusted. Hot water supply pump controller 1 when higher than set value (when supercooling degree is not higher than set value)
At 8, the output of the hot water supply pump 108 is controlled to increase, and when the value of the outdoor heat exchanger refrigerant temperature sensor 15 is lower than the set value (when the degree of supercooling is higher than the set value), the hot water supply pump controller 18 is controlled. By controlling the output of the hot water supply pump 108 to decrease, the hot water supply capacity is suppressed, and the refrigerant state of the outdoor heat exchanger 103 is stabilized, thereby suppressing the fluctuation of the optimal filling amount in the cycle. As a result, it is possible to improve a decrease in efficiency and a decrease in reliability due to unstable cycle.

(Embodiment 14) FIG. 14 shows a cycle configuration diagram of a cooling and heating water heater according to the present invention. A cooling and heating water heater including a compressor 101, a heat exchanger for hot water supply 102, an outdoor heat exchanger 103, a heat exchanger for air conditioning 104, an expansion mechanism 105, a four-way valve 106, a blower 107 for the outdoor heat exchanger, and a hot water pump 108. A bypass pipe 1 for bypassing the hot water supply heat exchanger 102, and a flow regulating valve 2 provided on the bypass pipe 1, and a hot water supply heat exchanger water inlet temperature sensor 6 and an outside air temperature as hot water temperature detection means of the hot water supply heat exchanger 102; An outside air temperature sensor 11 is provided as a detecting means, and a blower controller 19 for an outdoor heat exchanger is provided as a flow rate controlling means of the blower 107 for an outdoor heat exchanger based on this value.

In the above configuration, when cooling and hot water supply are operated simultaneously, when the value of the hot water supply heat exchanger water inlet temperature sensor 6 exceeds the value of the outside air temperature sensor 11, the outdoor heat exchanger blower controller 19 is operated. By starting the blower 107 for the outdoor heat exchanger, the difference between the temperature of the outdoor heat exchanger 103 and the outside air temperature is small, and the outside air temperature is predicted to be smaller. The rapid change in capacity of the outdoor heat exchanger 103 due to the start of the fan blower 107 can be suppressed, and the outdoor heat exchanger 103 can be operated as a condenser, so that reliability is improved due to cycle stabilization and the evaporation pressure is reduced more than necessary. Refrigeration of the air-conditioning heat exchanger can be improved.

(Embodiment 15) FIG. 15 is a cycle configuration diagram of a cooling and heating water heater according to the present invention. A cooling and heating water heater including a compressor 101, a heat exchanger for hot water supply 102, an outdoor heat exchanger 103, a heat exchanger for air conditioning 104, an expansion mechanism 105, a four-way valve 106, a blower 107 for the outdoor heat exchanger, and a hot water pump 108. A bypass pipe 1 for bypassing the hot water supply heat exchanger 102 and a flow rate regulating valve 2 provided on the bypass pipe 1, and a hot water supply heat exchanger refrigerant outlet temperature sensor 4 and an outside air temperature as a refrigerant temperature detecting means of the hot water supply heat exchanger 102. An outside air temperature sensor 11 is provided as a detecting means, and a blower controller 19 for an outdoor heat exchanger is provided as a flow rate controlling means of the blower 107 for an outdoor heat exchanger based on this value.

In the above configuration, when cooling and hot water supply are operated simultaneously, the hot water supply heat exchanger refrigerant outlet temperature sensor 4
When the value exceeds the value of the outdoor air temperature sensor 11, the outdoor heat exchanger blower 107 is activated by the outdoor heat exchanger blower controller 19, so that the temperature of the outdoor heat exchanger 103 and the outdoor air temperature are different. Since the difference is small and the outside air temperature is predicted to be smaller, the outdoor heat exchanger 103 is activated by the activation of the outdoor heat exchanger blower 107.
Can suppress the rapid change in capacity and allow the outdoor heat exchanger 103 to act as a condenser, thereby improving the reliability by stabilizing the cycle and improving the freezing of the air-conditioning heat exchanger due to an unnecessary decrease in the evaporation pressure. Becomes

(Embodiment 16) FIG. 16 shows a cycle configuration diagram of a cooling and heating water heater according to the present invention. A cooling and heating water heater including a compressor 101, a heat exchanger for hot water supply 102, an outdoor heat exchanger 103, a heat exchanger for air conditioning 104, an expansion mechanism 105, a four-way valve 106, a blower 107 for the outdoor heat exchanger, and a hot water pump 108. A bypass pipe 1 for bypassing the hot water supply heat exchanger 102; and a flow regulating valve 2 provided in the bypass pipe 1, and as an outdoor heat exchanger refrigerant temperature sensor 15 as an outdoor heat exchanger 103 refrigerant temperature detecting means and as an outdoor air temperature detecting means. An outside air temperature sensor 11 is provided, and a blower controller 19 for an outdoor heat exchanger is provided as an air volume control means of the blower 107 for an outdoor heat exchanger based on the value.

In the above configuration, when cooling and hot water are simultaneously operated, when the value of the outdoor heat exchanger refrigerant temperature sensor 15 exceeds the value of the outdoor air temperature sensor 11, the outdoor heat exchanger blower controller 19 controls the outdoor heat exchanger. By activating the heat exchanger blower 107, the difference between the temperature of the outdoor heat exchanger 103 and the outside air temperature is small, and the outside air temperature is smaller.
07 suppresses a sudden change in the capacity of the outdoor heat exchanger 103 and allows the outdoor heat exchanger 103 to act as a condenser, thereby improving reliability by stabilizing the cycle and air conditioning by lowering the evaporation pressure more than necessary. This can improve the freezing of the heat exchanger.

[0124]

As is apparent from the above embodiments, according to the present invention, it is possible to provide a cooling and heating hot water supply apparatus having an effect of suppressing a decrease in efficiency due to a pressure loss in a hot water supply heat exchanger.

Further, it is possible to provide a cooling and heating hot water supply apparatus having an effect of suppressing a decrease in efficiency due to a change in the optimum filling amount in the cycle, an unstable cycle, and a decrease in reliability due to freezing of the air-conditioning heat exchanger.

Further, it is possible to provide a cooling and heating hot water supply apparatus having an effect of improving comfort by distributing hot water and air conditioning capacity.

Further, it is possible to suppress a sudden change in the capacity of the outdoor heat exchanger which occurs when the blower for the outdoor heat exchanger is started during cooling.
It is possible to provide a cooling and heating water heater that has an effect that an outdoor heat exchanger that should be a condenser does not act as an evaporator depending on the outside air temperature.

[Brief description of the drawings]

FIG. 1 is a cycle configuration diagram of a cooling and heating water heater according to a first embodiment of the present invention.

FIG. 2 is a cycle configuration diagram of a cooling and heating water heater according to a second embodiment of the present invention.

FIG. 3 is a cycle configuration diagram of a cooling and heating water heater according to a third embodiment of the present invention.

FIG. 4 is a cycle configuration diagram of a cooling and heating water heater according to a fourth embodiment of the present invention.

FIG. 5 is a cycle configuration diagram of a cooling and heating water heater according to a fifth embodiment of the present invention.

FIG. 6 is a cycle configuration diagram of a cooling and heating water heater according to a sixth embodiment of the present invention.

FIG. 7 is a cycle configuration diagram of a heating and cooling water heater according to a seventh embodiment of the present invention.

FIG. 8 is a cycle configuration diagram of a cooling and heating water heater according to an eighth embodiment of the present invention.

FIG. 9 is a cycle configuration diagram of a cooling and heating water heater according to a ninth embodiment of the present invention.

FIG. 10 is a cycle configuration diagram of a cooling and heating water heater according to a tenth embodiment of the present invention.

FIG. 11 is a cycle configuration diagram of a cooling and heating water heater according to an eleventh embodiment of the present invention.

FIG. 12 is a cycle configuration diagram of a cooling and heating water heater according to a twelfth embodiment of the present invention.

FIG. 13 is a cycle configuration diagram of a cooling and heating water heater according to a thirteenth embodiment of the present invention.

FIG. 14 is a cycle configuration diagram of a cooling and heating water heater according to a fourteenth embodiment of the present invention.

FIG. 15 is a cycle configuration diagram of a cooling and heating hot water supply apparatus according to Embodiment 15 of the present invention.

FIG. 16 is a cycle configuration diagram of a cooling and heating water heater according to a sixteenth embodiment of the present invention.

FIG. 17 is a cycle configuration diagram of a conventional cooling and heating water heater.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bypass pipe 2 Flow control valve 3 Heat exchanger refrigerant inlet temperature sensor for hot water supply 4 Heat exchanger refrigerant outlet temperature sensor for hot water supply 5 Flow control valve controller 6 Heat exchanger water inlet temperature sensor for hot water supply 7 Heat exchanger water outlet for hot water supply Temperature sensor 8 Air-conditioning capacity required rank setting device 9 Hot water supply capacity required rank setting device 10 Clock 11 Outside air temperature sensor 12 Compressor suction pressure sensor 13 Air-conditioning heat exchanger water temperature sensor 14 Air-conditioning heat exchanger refrigerant temperature sensor 15 Outdoor heat exchange Refrigerant temperature sensor 16 Outdoor heat exchanger refrigerant pressure sensor 17 Three-way valve 18 Pump controller for hot water supply 19 Blower controller for outdoor heat exchanger

Claims (19)

[Claims] 1. A heating and cooling water heater comprising a compressor, a heat exchanger for hot water supply, an outdoor heat exchanger, a heat exchanger for air conditioning, an expansion mechanism, a four-way valve, and a blower for an outdoor heat exchanger. A cooling and heating hot water supply device characterized by providing a pipe for bypassing the water. 2. A heating and cooling water heater comprising a compressor, a heat exchanger for hot water supply, an outdoor heat exchanger, a heat exchanger for air conditioning, an expansion mechanism, a four-way valve, and a blower for an outdoor heat exchanger. 2. The cooling and heating water heater according to claim 1, wherein a flow rate adjusting valve is provided in a pipe that bypasses the air conditioner. 3. A method according to claim 2, wherein a temperature detecting means is provided at a refrigerant inlet / outlet of the heat exchanger for hot water supply, and the operation of the flow control valve is controlled by the value. 4. A heating and cooling water heater according to claim 2, wherein a temperature detecting means is provided at at least one of the hot water inlet and outlet of the hot water supply heat exchanger, and the operation of the flow control valve is controlled by this value. Control method. 5. The method for controlling a cooling / heating hot water supply apparatus according to claim 2, wherein the operation of the flow control valve is controlled according to the hot water supply capacity request rank and the air conditioning capacity request rank. 6. The cooling and heating hot water supply apparatus according to claim 2, further comprising: a time and / or outside air temperature detecting means, and a value of the time and / or the outside air temperature and a hot water supply capacity required rank. A method for controlling a cooling and heating water heater that controls the operation of a flow control valve according to the air conditioning capacity requirement rank. 7. A heating and cooling water heater according to claim 2, wherein a pressure detecting means is provided at one of the compressor suction or the refrigerant inlet and outlet of the air conditioning heat exchanger, and the operation of the flow control valve is controlled by this value. A method for controlling a water heater. 8. A heating and cooling hot water supply apparatus according to claim 2, wherein a temperature detecting means is provided for at least one of the refrigerant and the water temperature of the air conditioner heat exchanger, and the operation of the flow control valve is controlled by this value. How to control the device. 9. A method for controlling a heating and cooling water heater according to claim 2, further comprising means for detecting the degree of supercooling of the outdoor unit heat exchanger, and controlling the operation of the flow regulating valve based on the value. 10. A heating and cooling water heater comprising a compressor, a heat exchanger for hot water supply, an outdoor heat exchanger, a heat exchanger for air conditioning, an expansion mechanism, a four-way valve, and a blower for an outdoor heat exchanger, wherein the heat exchanger for hot water supply is provided. The cooling and heating hot water supply apparatus according to claim 1, wherein a pipe for bypassing the hot water supply is provided, and a three-way valve is provided at a bypass branch part on a refrigerant inlet side of the hot water supply heat exchanger. 11. A heating and cooling water heater comprising a compressor, a heat exchanger for hot water supply, an outdoor heat exchanger, a heat exchanger for air conditioning, an expansion mechanism, a four-way valve, and a blower for an outdoor heat exchanger. The cooling and heating hot water supply apparatus according to claim 1, wherein a pipe for bypassing the hot water supply is provided, and a three-way valve is provided at a bypass junction on a refrigerant outlet side of the hot water supply heat exchanger. 12. A cooling and heating hot water supply apparatus according to claim 1, wherein a temperature detecting means is provided at a refrigerant inlet / outlet of the hot water supply heat exchanger, and the amount of hot water in the hot water supply heat exchanger is controlled based on this value. A method for controlling a heating and cooling water heater. 13. The hot / cold hot water supply apparatus according to claim 1, wherein at least one of the hot water inlet and outlet of the hot water supply heat exchanger is provided with a temperature detecting means, and the value of the temperature detecting means is determined based on the value. A method for controlling a cooling / heating water heater that controls the amount of hot water. 14. A heating and cooling water heater according to claim 1, wherein a pressure detecting means is provided at one of a compressor suction or a refrigerant inlet / outlet of an air conditioning heat exchanger, and the value of the pressure detecting means is determined by the value. A method for controlling a cooling and heating water heater that controls the amount of hot water in an exchanger. 15. A heating and cooling water heater according to claim 1, wherein temperature and / or temperature detecting means are provided for at least one of the refrigerant and the water temperature of the air conditioner heat exchanger. A method for controlling a cooling and heating water heater that controls the amount of hot water in a water heater. 16. The cooling / heating hot water supply apparatus according to claim 1, further comprising means for detecting a degree of supercooling of the outdoor unit heat exchanger, and using this value to determine a hot water amount of the hot water supply heat exchanger. A method for controlling a cooling and heating water heater. 17. The cooling and heating hot water supply apparatus according to claim 1, wherein a temperature detecting means is provided for the hot water and the outside air of the hot water supply heat exchanger, and the air conditioner controls the blower for the outdoor heat exchanger based on this value. How to control the device. 18. The cooling and heating hot water supply apparatus according to claim 1, wherein a temperature detecting means is provided for the refrigerant of the heat exchanger for hot water supply and the outside air, and the blower for the outdoor heat exchanger is controlled by this value. How to control the device. 19. The cooling and heating hot water supply apparatus according to claim 1, wherein a temperature detecting means is provided for the refrigerant of the outdoor heat exchanger and the outside air, and the value of the temperature control means controls the blower for the outdoor heat exchanger. How to control the device.