JP2005221194A - Air conditioning, refrigerating and freezing facility - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air conditioning, refrigerating and freezing facility which shares only one outdoor machine. <P>SOLUTION: An air conditioning outdoor heat exchanger 15, a refrigerating outdoor heat exchanger 25 and a freezing outdoor heat exchanger 35 provided in respective refrigerant circuits 12, 22 and 32 of an air conditioner 2, a refrigerator 3 and a freezer 4 of the air conditioning, refrigerating and freezing facility 1 are provided in one outdoor machine 42. One supercooling device 41 is provided which supercools refrigerants having passed through the respective outdoor heat exchangers in the refrigerant circuits 12, 22 and 32. An air blower 51 is provided in an outdoor machine 42, which takes in outside air to bring the air into contact with the air conditioning outdoor heat exchanger 15, refrigerating outdoor heat exchanger 25 and freezing outdoor heat exchanger 35. The refrigerating outdoor heat exchanger 25 and freezing outdoor heat exchanger 35 are disposed adjacently to the air conditioning outdoor heat exchanger 15 on the upstream side of air stream generated by the air blower 51. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to air conditioning / refrigeration / refrigeration equipment.

For example, in large stores and convenience stores, in addition to air conditioning devices that heat or cool the stores, refrigeration devices that store or display drinking water, food, etc. in a refrigerated state, ice, ice cream, frozen food And the like are stored or displayed in a frozen state.
Thus, for example, a combined air conditioning system described in Patent Document 1 described later is used in a store including an air conditioning apparatus, a refrigeration apparatus, and a refrigeration apparatus.
This combined air conditioning system is configured to connect an air conditioner side indoor unit and a refrigerator side indoor unit to the same outdoor unit (outdoor unit) and operate with the same refrigerant circuit.

Japanese Patent Laid-Open No. 10-2629 (paragraph [0010] and FIG. 1)

However, while the refrigeration apparatus and the refrigeration apparatus use only the refrigeration cycle, the air conditioning apparatus needs to perform not only the cooling operation using the refrigeration cycle but also the heating operation using the heating cycle.
In the combined air conditioning system described in the cited document 1, only the cooling cycle of the air conditioner can be formed due to its configuration. Therefore, in order to form the heating cycle, a refrigerant circuit and a cooling circuit are separately provided for the heating cycle. It was necessary to provide an outdoor unit.

  This invention is made | formed in view of such a situation, Comprising: It aims at providing the highly efficient air-conditioning / refrigeration / refrigeration equipment which can use only one outdoor unit.

In order to solve the above problems, the air-conditioning / refrigeration / refrigeration facility of the present invention employs the following means.
That is, the air conditioning, refrigeration and refrigeration equipment according to the present invention includes an air conditioner, a refrigeration apparatus, and a refrigeration apparatus provided with independent refrigerant circuits including an outdoor heat exchanger and other components. A refrigeration / refrigeration facility, a supercooling device that supercools the refrigerant that has passed through the outdoor heat exchanger in each refrigerant circuit, and a unit in which the outdoor heat exchanger of each refrigerant circuit is housed. An outdoor unit, and an air blower that takes outside air into the outdoor unit and contacts the outdoor heat exchanger. In the outdoor unit, the outdoor heat exchanger of the refrigeration unit and the outdoor heat of the refrigeration unit At least one of the exchangers is disposed close to the upstream side of the airflow generated by the blower with respect to the outdoor heat exchanger of the air conditioner.

In the air conditioning / refrigeration / refrigeration equipment configured as described above, the refrigerant circulated in the refrigeration cycle formed by each refrigerant circuit is condensed and liquefied by each outdoor heat exchanger, and then further cooled by the supercooling device. It will be in a supercooled state.
Then, the difference in the enthalpy of refrigerant (the amount of change in enthalpy) increases by the amount of this supercooling between the inlet side and the outlet side of the indoor heat exchanger constituting these refrigeration cycles.
That is, in the air conditioning, refrigeration and refrigeration equipment according to the present invention, the amount of heat absorbed by the refrigerant in the indoor heat exchanger is increased as compared to the case where no supercooling device is provided, so the circulation flow rate of the refrigerant can be reduced. The COP (Coefficient of Performance) of the refrigeration cycle is higher than before.

Here, since the temperature of the ambient atmosphere of the indoor heat exchanger (evaporator) is low, the refrigeration apparatus and the refrigeration apparatus have a low evaporation temperature, a low pressure and a large pressure difference, and thus are more efficient than the air conditioner. bad. For this reason, COP of the whole installation is influenced by the efficiency of a refrigeration apparatus and a freezing apparatus.
In the air conditioning / refrigeration / refrigeration facility according to the present invention, the refrigerant is supercooled by the highly efficient supercooling device as described above, and in particular, the efficiency of the refrigeration device and the freezing device is improved. The overall COP is high.

  In this air conditioning / refrigeration / refrigeration facility, the air conditioning apparatus, the refrigeration apparatus, the refrigeration apparatus, and the air conditioning apparatus, the refrigeration apparatus, and the highly efficient supercooling apparatus using a heat source independent of the refrigeration apparatus are used. Appropriate supercooling can be performed in accordance with the performance of the apparatus and the refrigeration apparatus to further improve the COP of the entire facility. An example of such a supercooling device is a refrigerant circuit used in an air conditioner.

Moreover, in this air conditioning / refrigeration / refrigeration facility, the outdoor heat exchangers of the air conditioner, the refrigeration device, and the refrigeration device are installed in one outdoor unit, and circulate in these outdoor heat exchangers. Heat exchange is performed between the refrigerant and the outside air taken into the outdoor unit by the blower.
That is, in this air conditioning / refrigeration / refrigeration facility, each outdoor heat exchanger shares the facilities of the outdoor unit such as a blower, so that the cost of the unit is low and the installation space of the outdoor unit is small.

  Here, the outdoor heat exchanger for refrigeration equipment and the outdoor heat exchanger for refrigeration equipment (hereinafter referred to as “refrigeration outdoor heat exchanger” and “refrigeration outdoor heat exchanger” respectively) are condensed in the refrigeration equipment and the refrigeration equipment, respectively. Therefore, a refrigerant having a temperature higher than the outside temperature is supplied. For this reason, the outdoor air which contacted the outdoor heat exchanger for refrigeration and the outdoor heat exchanger for freezing becomes higher temperature than before heat exchange.

In the air conditioning / refrigeration / refrigeration facility according to the present invention, at least one of the refrigeration outdoor heat exchanger and the refrigeration outdoor heat exchanger is an air conditioner outdoor heat exchanger (hereinafter referred to as “air conditioning outdoor heat”). It is located close to the upstream side of the airflow generated by the blower with respect to the “exchanger”.
For this reason, the high temperature outside air that has passed through at least one of the refrigeration outdoor heat exchanger and the freezing outdoor heat exchanger is fed into the air conditioning outdoor heat exchanger. Heat exchange is performed between the outside air and the refrigerant flowing in the outdoor heat exchanger for air conditioning.
In addition, the outdoor heat exchanger for air conditioning includes a radiant heat transfer from an outdoor heat exchanger disposed close to the upstream side of the outdoor heat exchanger for air conditioning among the outdoor heat exchanger for refrigeration and the outdoor heat exchanger for freezing. The heat is transferred by.

That is, in the air conditioning, refrigeration, and refrigeration equipment according to the present invention, the exhaust heat of at least one of the refrigeration outdoor heat exchanger and the refrigeration outdoor heat exchanger is used, and the inside of the air conditioning outdoor heat exchanger The refrigerant is heated to accelerate the evaporation of the refrigerant.
As a result, in this air conditioning / refrigeration / refrigeration facility, the performance of the air conditioner outdoor heat exchanger as an evaporator is improved, so that the air conditioner is in the heating operation (that is, the air conditioner outdoor heat exchanger is used as an evaporator). The efficiency).

  Furthermore, since the air-conditioning / refrigeration / refrigeration facility is provided with the supercooling device as described above and is highly efficient, the circulating flow rate of the refrigerant in the refrigerant circuit can be reduced as compared with the conventional case.

  Here, since the outdoor heat exchanger for air conditioning is used as an evaporator during the heating operation of the air conditioner, a refrigerant having a temperature lower than the outside air temperature is supplied. For this reason, the moisture contained in the outside air is cooled and condensed by the outdoor heat exchanger for air conditioning to be drained, and frost is generated by further cooling the drain. Thus, when frost adheres to the air-conditioning outdoor heat exchanger, heat exchange is hindered between the refrigerant and the outside air by the air-conditioning outdoor heat exchanger, and the performance of the air conditioner deteriorates. In addition, the outdoor heat exchanger for air conditioning is usually provided with a drain pan that receives drain and appropriately discharges it outside the outdoor heat exchanger for air conditioning. There is a possibility that the drain in this drain pan freezes and does not function sufficiently.

  In the air conditioning / refrigeration / refrigeration facility according to the present invention, as described above, the air-conditioning outdoor heat exchanger (including the drain pan) is at least one of the refrigeration outdoor heat exchanger and the freezing outdoor heat exchanger. Heated by one exhaust heat. That is, since at least one of the refrigeration outdoor heat exchanger and the refrigeration outdoor heat exchanger is used as a drain heater, frost is hardly generated on the air conditioning outdoor heat exchanger during the heating operation of the air conditioner. .

Here, since the refrigerant circuits of the air conditioning apparatus, the refrigeration apparatus, and the refrigeration apparatus are independent of each other, even if trouble occurs in any one of the refrigerant circuits, it is difficult to adversely affect the other refrigerant circuits.
In addition, this air conditioning / refrigeration / refrigeration facility is provided with a supercooling device in the refrigerant circuit of the air conditioning device, the refrigeration device, and the refrigeration device, and it is only necessary to change the arrangement of the outdoor heat exchangers of these devices. The air conditioning, refrigeration, and refrigeration equipment according to the present invention can be constructed using the air conditioning apparatus, the refrigeration apparatus, and the refrigeration apparatus almost as they are.

  In this air conditioning, refrigeration and refrigeration facility, at least one of the outdoor heat exchanger of the refrigeration device and the outdoor heat exchanger of the refrigeration device is disposed close to the outdoor heat exchanger of the air conditioner May be.

In the air conditioning / refrigeration / refrigeration equipment configured as described above, at least one of the refrigeration outdoor heat exchanger and the refrigeration outdoor heat exchanger is disposed close to the lower side of the air conditioning outdoor heat exchanger. Yes.
For this reason, in the outdoor heat exchanger for air conditioning, the outside air heated by at least one of the outdoor heat exchanger for refrigeration and the outdoor heat exchanger for freezing that is arranged below the refrigeration outdoor heat exchanger and raised by heat convection It is sent.
In addition, the outdoor heat exchanger for air conditioning includes a radiant heat transfer from an outdoor heat exchanger disposed close to the lower side of the outdoor heat exchanger for air conditioning among the outdoor heat exchanger for refrigeration and the outdoor heat exchanger for freezing. Heat is transferred.

That is, in the air conditioning / refrigeration / refrigeration facility according to the present invention, since at least one of the refrigeration outdoor heat exchanger and the refrigeration outdoor heat exchanger is used as a drain heater, air conditioning is performed during heating operation of the air conditioner. Frost is unlikely to form on the outdoor heat exchanger.
In particular, in this configuration, since the liquid refrigerant stays in the outdoor heat exchanger for air conditioning, the lower part where frost is likely to be generated is heated, so that frost can be effectively eliminated.

  In addition, the amount of exhaust heat of each of the outdoor heat exchanger for refrigeration and the outdoor heat exchanger for freezing differs depending on the capacity. As a drain heater, a large amount of exhaust heat is not required, so, for example, between the outdoor heat exchanger for refrigeration and the outdoor heat exchanger for refrigeration, the one with the smaller exhaust heat is placed close to the lower side of the indoor heat exchanger for air conditioning Therefore, it is preferable to use the drain heater as a heat source for heating the outside air in the upstream stage of the air-conditioning outdoor heat exchanger by disposing it closer to the upstream side of the air-conditioning outdoor heat exchanger.

  In this air conditioning / refrigeration / refrigeration facility, a part of the outdoor heat exchanger of the air conditioner may be exposed upstream of the airflow.

In the air conditioning / refrigeration / refrigeration equipment configured as described above, a part of the air conditioning outdoor heat exchanger is exposed on the upstream side of the air flow. Direct heat exchange is performed with the outside air not heated by the outdoor heat exchanger.
For this reason, during the cooling operation of the air conditioner (that is, when the outdoor heat exchanger is used as a condenser), the refrigerant can be condensed more effectively than when no exposed portion is provided. High efficiency during cooling operation.

  In this air conditioning / refrigeration / refrigeration facility, at least one of the outdoor heat exchanger of the refrigeration apparatus and each outdoor heat exchanger of the refrigeration apparatus is divided into a plurality of heat exchanger units, At least a part of the heat exchanger unit is disposed close to the upstream side of the airflow with respect to the outdoor heat exchanger of the air conditioner, and is spaced apart in a direction intersecting the airflow. A part of the outdoor heat exchanger of the air conditioner may be disposed between the heat exchanger units.

  In the air conditioning / refrigeration / refrigeration equipment configured as described above, at least a part of the heat exchanger unit constituting at least one of the refrigeration outdoor heat exchanger and the refrigeration outdoor heat exchanger is: On the upstream side of the airflow of the outdoor heat exchanger for air conditioning, the airflow is spaced apart in the direction intersecting the airflow in the outdoor unit. And between these heat exchanger units, a part of outdoor heat exchanger of an air harmony device is arranged.

  In the air conditioning, refrigeration, and refrigeration equipment configured as described above, a part of the outdoor heat exchanger of the air conditioner is reliably in contact with the outside air that is not heated by the refrigeration outdoor heat exchanger or the refrigeration outdoor heat exchanger. Thus, heat exchange can be performed, so that the refrigerant can be more effectively condensed, and the efficiency during cooling operation is high.

  Further, the refrigeration apparatus and the outdoor heat exchanger of the refrigeration apparatus of the air conditioning / refrigeration / refrigeration equipment are divided into a plurality of heat exchanger units, and the outdoor heat exchanger of the refrigeration apparatus and the cooling apparatus An outdoor heat exchanger means that at least a part of each of the heat exchanger units is arranged close to the upstream side of the airflow with respect to the outdoor heat exchanger of the air conditioner, and the heat of the refrigeration apparatus. The exchanger unit and the heat exchanger unit of the refrigeration apparatus may be alternately arranged in a direction crossing the airflow.

  In the air conditioning / refrigeration / refrigeration equipment configured as described above, at least a part of the heat exchanger unit of the refrigeration outdoor heat exchanger and at least a part of the heat exchanger unit of the refrigeration outdoor heat exchanger are The air conditioner outdoor heat exchanger is alternately arranged on the upstream side of the air flow in a direction crossing the air flow in the outdoor unit. That is, the outdoor heat exchanger for air conditioning has a region facing the heat exchanger unit of the outdoor heat exchanger for refrigeration and a region facing the heat exchanger unit of the outdoor heat exchanger for refrigeration in a direction crossing the air flow. And are located alternately.

As a result, even if one of the outdoor heat exchanger for refrigeration and the outdoor heat exchanger for freezing stops and the exhaust heat of this outdoor heat exchanger cannot be used, the other outdoor heat exchanger Since exhaust heat is supplied to each part of the outdoor heat exchanger for air conditioning by the heat exchanger unit, the performance of the air conditioner is hardly affected.
Here, each heat exchanger unit of the refrigeration apparatus and the refrigeration apparatus may be connected in series to each refrigerant circuit, or may be connected in parallel.

  A part of the outdoor heat exchanger of the air conditioner of the air conditioning / refrigeration / refrigeration facility may be disposed between the heat exchanger unit of the refrigeration apparatus and the heat exchanger unit of the refrigeration apparatus.

  In the air conditioning, refrigeration, and refrigeration equipment configured as described above, a part of the outdoor heat exchanger of the air conditioner is reliably in contact with the outside air that is not heated by the refrigeration outdoor heat exchanger or the refrigeration outdoor heat exchanger. Thus, heat exchange can be performed, so that the refrigerant can be more effectively condensed, and the efficiency during cooling operation is high.

  In addition, the air conditioning / refrigeration / refrigeration facility according to the present invention includes an air conditioner, a refrigerator, and a refrigeration apparatus provided with independent refrigerant circuits including an outdoor heat exchanger and other components. A refrigeration / refrigeration facility, a supercooling device that supercools the refrigerant that has passed through the outdoor heat exchanger in each refrigerant circuit, and a unit in which the outdoor heat exchanger of each refrigerant circuit is housed. An outdoor unit, and in the outdoor unit, at least one of the outdoor heat exchanger of the refrigeration apparatus and the outdoor heat exchanger of the refrigeration apparatus is an outdoor heat exchanger of the air conditioner. It is characterized by being closely arranged below.

In the air-conditioning / refrigeration / refrigeration equipment configured as described above, a supercooling device is provided and the amount of heat absorbed by the refrigerant in the indoor heat exchanger increases, so the COP of the refrigeration cycle is higher than before.
Moreover, in the air-conditioning / refrigeration / refrigeration facility according to the present invention, the efficiency of the refrigeration apparatus and the refrigeration apparatus is improved by performing the supercooling of the refrigerant as described above, so that the COP of the entire facility is high.

  In this air conditioning / refrigeration / refrigeration facility, an air conditioner, a refrigerator, and an air conditioner, a refrigerator, and a highly efficient supercooler using a heat source independent of the refrigerator are used as a supercooler. And it is possible to further improve the efficiency by performing appropriate supercooling according to the performance of the refrigeration apparatus. As such a supercooling device, for example, there is a refrigerant circuit constituting an air conditioner.

Moreover, in this air conditioning / refrigeration / refrigeration facility, the outdoor heat exchangers of the air conditioner, the refrigeration device, and the refrigeration device are installed in one outdoor unit, and circulate in these outdoor heat exchangers. Heat exchange is performed between the refrigerant and the outside air taken into the outdoor unit by a blower or the like.
That is, in this air conditioning / refrigeration / refrigeration facility, each outdoor heat exchanger shares the facilities of the outdoor unit such as a blower, so that the cost of the unit is low and the installation space of the outdoor unit is small.

Here, since the outdoor heat exchanger for air conditioning is used as an evaporator during the heating operation of the air conditioner, a refrigerant having a temperature lower than the outside air temperature is supplied. For this reason, the moisture contained in the outside air is cooled and condensed by the outdoor heat exchanger for air conditioning to be drained, and frost is generated by further cooling the drain. Thus, when frost adheres to the air-conditioning outdoor heat exchanger, heat exchange is hindered between the refrigerant and the outside air by the air-conditioning outdoor heat exchanger, and the performance of the air conditioner deteriorates. In the outdoor heat exchanger for air conditioning, since the refrigerant in the liquid state stays in the lower part, drainage and frost are particularly likely to occur in the lower part.
In addition, the outdoor heat exchanger for air conditioning is usually provided with a drain pan that receives drain and appropriately discharges it outside the outdoor heat exchanger for air conditioning. There is a possibility that the drain in this drain pan freezes and does not function sufficiently.

  On the other hand, since the refrigeration outdoor heat exchanger and the freezing outdoor heat exchanger are used as condensers in the refrigeration apparatus and the refrigeration apparatus, respectively, a refrigerant having a temperature higher than the outside air temperature is supplied. For this reason, the outdoor air which contacted the outdoor heat exchanger for refrigeration and the outdoor heat exchanger for freezing becomes higher temperature than before heat exchange.

In the air conditioning / refrigeration / refrigeration facility according to the present invention, at least one of the refrigeration outdoor heat exchanger and the refrigeration outdoor heat exchanger is disposed close to the lower side of the air conditioning outdoor heat exchanger.
For this reason, the outdoor air which is heated and raised by at least one of the refrigeration outdoor heat exchanger and the refrigeration outdoor heat exchanger which is disposed below the air conditioning outdoor heat exchanger is fed into the air conditioning outdoor heat exchanger.
In addition, the outdoor heat exchanger for air conditioning includes a radiant heat transfer from an outdoor heat exchanger disposed close to the lower side of the outdoor heat exchanger for air conditioning among the outdoor heat exchanger for refrigeration and the outdoor heat exchanger for freezing. Heat is transferred.

That is, in the air conditioning / refrigeration / refrigeration facility according to the present invention, since at least one of the refrigeration outdoor heat exchanger and the refrigeration outdoor heat exchanger is used as a drain heater, air conditioning is performed during heating operation of the air conditioner. Frost is unlikely to form on the outdoor heat exchanger.
In particular, in this configuration, since the liquid refrigerant stays in the outdoor heat exchanger for air conditioning, the lower part where frost is likely to be generated is heated, so that frost can be effectively eliminated.

  In addition, the amount of exhaust heat of each of the outdoor heat exchanger for refrigeration and the outdoor heat exchanger for freezing differs depending on the capacity. As a drain heater, a large amount of exhaust heat is not required, so, for example, between the outdoor heat exchanger for refrigeration and the outdoor heat exchanger for refrigeration, the one with the smaller exhaust heat is placed close to the lower side of the indoor heat exchanger for air conditioning Therefore, it is preferable to use the drain heater as a heat source for heating the outside air in the upstream stage of the air-conditioning outdoor heat exchanger by disposing it closer to the upstream side of the air-conditioning outdoor heat exchanger.

Here, since the refrigerant circuits of the air conditioning apparatus, the refrigeration apparatus, and the refrigeration apparatus are independent of each other, even if trouble occurs in any of the refrigerant circuits, it is difficult to adversely affect the other refrigerant circuits.
In addition, this air conditioning / refrigeration / refrigeration facility is provided with a supercooling device in the refrigerant circuit of the air conditioner, the refrigeration device, and the refrigeration device, and it is only necessary to change the arrangement of the outdoor heat exchangers of these devices. The air conditioning, refrigeration, and refrigeration equipment according to the present invention can be constructed using the air conditioner, the refrigeration equipment, and the refrigeration equipment of the air conditioning, refrigeration, and refrigeration equipment almost as they are.

According to the air conditioning, refrigeration, and refrigeration equipment according to the present invention, the refrigerant circulated in the refrigeration cycle formed by the refrigerant circuits of the air conditioner, the refrigeration apparatus, and the refrigeration apparatus is supercooled by the highly efficient supercooling device. Therefore, the COP of the refrigeration cycle is high.
In this air conditioning / refrigeration / refrigeration facility, the outdoor heat exchangers of the air conditioner, the refrigeration device, and the refrigeration device are installed in one outdoor unit, and each outdoor heat exchanger has a blowing device. Since the equipment of the outdoor unit is shared, the apparatus cost is low and the installation space of the outdoor unit is small.

Furthermore, the refrigerant in the outdoor heat exchanger for air conditioning is heated using the exhaust heat of at least one of the outdoor heat exchanger for refrigeration and the outdoor heat exchanger for freezing, Since the performance of the heat exchanger as an evaporator is enhanced, the efficiency of the air conditioner during heating operation is high.
Also, during the heating operation of the air conditioner, the refrigerant in the air conditioning outdoor heat exchanger is heated using the exhaust heat of at least one of the refrigeration outdoor heat exchanger and the refrigeration outdoor heat exchanger. Since the evaporation temperature of the air conditioner rises, the outdoor heat exchanger for air conditioning becomes difficult to frost.
In addition, the refrigerant in the air-conditioning outdoor heat exchanger is heated using the exhaust heat of at least one of the refrigeration outdoor heat exchanger and the freezing outdoor heat exchanger. When the heat exchanger frosts and defrosts, the defrosting is performed quickly by the exhaust heat.
In addition, since at least one of the refrigeration outdoor heat exchanger and the refrigeration outdoor heat exchanger is used as a drain heater, it is difficult for frost to adhere to the air conditioning outdoor heat exchanger during heating operation of the air conditioner. This saves a lot of maintenance work in winter.

And since the refrigerant circuit of an air conditioning apparatus, a refrigeration apparatus, and a freezing apparatus is each independent, even if trouble arises in one of refrigerant circuits, it is hard to have an adverse effect on another refrigerant circuit.
In addition, a supercooling device is provided in the refrigerant circuit of the air conditioning device, the refrigeration device, and the refrigeration device, and it is only necessary to change the arrangement of the outdoor heat exchangers of these devices. By using the refrigeration apparatus almost as it is, the air conditioning, refrigeration and refrigeration equipment according to the present invention can be constructed easily and at low cost.

Embodiments according to the present invention will be described below with reference to the drawings.
[First embodiment]
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. 1 to 4.
As shown in FIG. 1, an air conditioning / refrigeration / refrigeration facility 1 according to the present embodiment is applied to a store such as a large store or a convenience store, and is an air conditioner 2 that performs heating or cooling in the store. And a refrigeration apparatus 3 for storing or displaying drinking water or food in a refrigerated state, and a refrigeration apparatus 4 for storing or displaying ice, ice cream, frozen food, or the like in a frozen state.
Each of the air conditioner 2, the refrigeration apparatus 3, and the refrigeration apparatus 4 is independently provided with a refrigerant circuit including an outdoor heat exchanger and other components.

The air conditioner 2 has an indoor air conditioning unit 11 provided in the store. A refrigerant circuit 12 shown in FIG. 2 is connected to the indoor air conditioning unit 11.
The refrigerant circuit 12 selectively forms one of a heating cycle and a cooling cycle.
The refrigerant circuit 12 includes an indoor heat exchanger 13 provided in the indoor air conditioning unit 11 on the refrigerant flow path through which the refrigerant is circulated to exchange heat between the refrigerant and the store atmosphere, and a compressor that pressurizes the refrigerant. 14, an air conditioning outdoor heat exchanger 15 that performs heat exchange between the refrigerant and the outdoor atmosphere, and an electronic expansion valve (throttle resistor) 16 that expands the refrigerant to reduce the pressure are provided in this order. It is said that.

In the refrigerant circuit 12, the compressor 14 is connected to the indoor heat exchanger 13 and the air conditioning outdoor heat exchanger 15 via a four-way valve 17.
The four-way valve 17 controls the refrigerant discharge direction from the compressor 14 in the refrigerant flow path and the refrigerant supply direction to the compressor 14 in the refrigerant flow path, controls the flow of the refrigerant in the refrigerant flow path, and performs heating. One of the cycle and the cooling cycle is selectively formed.
As the electronic expansion valve 16, a cooling expansion valve 16a and a heating expansion valve 16b are provided, and the air conditioner 2 is configured to use these electronic expansion valves 16 in accordance with the operation mode.

As shown in FIG. 1, the refrigeration apparatus 3 includes a refrigerated showcase 21 that is provided in a store and stores and displays refrigerated objects. A refrigerant circuit 22 shown in FIG. 2 is connected to the refrigerated showcase 21.
The refrigerant circuit 22 forms a refrigeration cycle for cooling the atmosphere in the refrigerated showcase 21.
The refrigerant circuit 22 includes an indoor heat exchanger 23 that is provided in the refrigerated showcase 21 and exchanges heat between the refrigerant and the atmosphere in the refrigerated showcase 21 on a refrigerant flow path through which the refrigerant is circulated, and a refrigerant A compressor 24 that pressurizes the refrigerant, an outdoor heat exchanger 25 that performs heat exchange between the refrigerant and the outdoor atmosphere, and an expansion valve (throttle resistor) 26 that expands and cools the refrigerant. It is set as the structure.

As shown in FIG. 1, the refrigeration apparatus 4 includes a refrigeration showcase 31 that is provided in a store and stores and displays objects to be frozen. A refrigerant circuit 32 shown in FIG. 2 is connected to the refrigeration showcase 31.
The refrigerant circuit 32 forms a refrigeration cycle for cooling the atmosphere in the refrigeration showcase 31.
The refrigerant circuit 32 includes an indoor heat exchanger 33 that is provided in the refrigeration showcase 31 and exchanges heat between the refrigerant and the atmosphere in the refrigerated showcase 31 on the refrigerant flow path through which the refrigerant circulates, A compressor 34 that pressurizes the refrigerant, an outdoor heat exchanger 35 that performs heat exchange between the refrigerant and the outdoor atmosphere, and an expansion valve (throttle resistor) 36 that expands and cools the refrigerant. It is set as the structure.

As shown in FIGS. 1 and 2, the air conditioning / refrigeration / refrigeration facility 1 includes an air conditioning outdoor heat exchanger 15, a refrigeration outdoor heat exchanger 25, and a refrigeration unit in each of the refrigerant circuits 12, 22, and 32. One supercooling device 41 is provided for supercooling the refrigerant that has passed through the outdoor heat exchanger 35.
The air-conditioning / refrigeration / refrigeration facility 1 houses the air-conditioning outdoor heat exchanger 15, the refrigeration outdoor heat exchanger 25, and the freezing outdoor heat exchanger 35 of the refrigerant circuits 12, 22, and 32. One outdoor unit 42 is provided.

The supercooling device 41 is provided outside the store independently of the outdoor unit 42 as shown in FIG. 1, and is independent of the refrigerant circuits 12, 22, 32 as shown in FIG. A refrigerant circuit 46 is provided.
The refrigerant circuit 46 forms a refrigeration cycle for cooling the refrigerant flowing through the refrigerant circuits 12, 22, and 32.
The refrigerant circuit 46 includes a compressor 47, an outdoor heat exchanger (condenser) 48, an electronic expansion valve (throttle resistor) 49, and the refrigerant circuits 12, 22, 32 on the refrigerant flow path through which the refrigerant is circulated. A refrigerant that circulates inside and a supercooling heat exchanger (evaporator) 50 that performs heat exchange are provided in this order. That is, in the present embodiment, as the supercooling device 41, a highly efficient refrigerant circuit used in an air conditioner is used.

As shown in FIG. 3, the outdoor unit 42 has a box shape in which an outside air inlet 42 a is formed on a side surface and an exhaust port 42 b is formed on an upper surface. The exhaust port 42 b has an outside air in the outdoor unit 42. The air blower 51 is provided so as to be brought into contact with the outdoor heat exchanger 15 for air conditioning, the outdoor heat exchanger 25 for refrigeration, and the outdoor heat exchanger 35 for freezing.
That is, in the outdoor unit 42, by operating the blower 51, an air flow is generated from the side outside air inlet 42a toward the top exhaust port 42b.

  In the outdoor unit 42, the refrigeration outdoor heat exchanger 25 and the refrigeration outdoor heat exchanger 35 are upstream of the airflow generated by the blower 51 with respect to the air conditioning outdoor heat exchanger 15 (that is, the side surface side). Is placed close to.

Here, the refrigeration outdoor heat exchanger 25 is divided into a plurality of heat exchanger units 25a. These heat exchanger units 25a may be connected in series to the refrigerant circuit 22 or may be connected in parallel.
These heat exchanger units 25a are arranged apart from each other in the direction intersecting with the airflow (that is, the vertical direction). A part of the outdoor heat exchanger 15 for air conditioning is arranged between the heat exchanger units 25a.

A freezing outdoor heat exchanger 35 of the refrigeration apparatus 4 is installed below the row of the heat exchanger units 25a.
A part of the air-conditioning outdoor heat exchanger 15 is disposed between the lowermost heat exchanger unit 25a and the freezing outdoor heat exchanger 35.
That is, the refrigeration outdoor heat exchanger 35 is disposed close to the lower side of the air conditioning outdoor heat exchanger 15.

Hereinafter, the operation of the air conditioning / refrigeration / refrigeration equipment configured as described above will be described.
First, each operation | movement of the air conditioning apparatus 2, the refrigeration apparatus 3, and the freezing apparatus 4 is demonstrated.
In the air conditioner 2, during the heating operation, the refrigerant outlet of the compressor 14 is connected to the indoor heat exchanger 13 side of the refrigerant flow path by the four-way valve 17, and the refrigerant inlet of the compressor 14 is used for air conditioning of the refrigerant flow path. It is connected to the outdoor heat exchanger 15 side.
Thereby, the gaseous refrigerant pressurized to high temperature and high pressure by the compressor 14 is sent into the indoor heat exchanger 13, and heat exchange is performed between the high temperature and high pressure refrigerant and the indoor atmosphere.
As the refrigerant passes through the indoor heat exchanger 13, the indoor atmosphere is deprived of heat and condensed and liquefied, whereby the indoor atmosphere is heated. That is, the indoor heat exchanger 13 functions as a condenser that condenses and liquefies the gaseous refrigerant.

The refrigerant condensed and liquefied by the indoor heat exchanger 13 in this manner is decompressed by the heating expansion valve 16b provided on the downstream side of the indoor heat exchanger 13, and becomes a low-temperature and low-pressure two-phase refrigerant. This two-phase refrigerant is sent to the air conditioning outdoor heat exchanger 15 provided downstream of the heating expansion valve 16b, and heat exchange is performed with the outside air taken into the outdoor unit 42.
By passing through the outdoor heat exchanger 15 for air conditioning, the refrigerant takes heat from the outside air taken into the outdoor unit 42 and evaporates to become a low-temperature and low-pressure gaseous refrigerant. That is, the air conditioning outdoor heat exchanger 15 functions as an evaporator that heats and evaporates the liquid refrigerant.
This gaseous refrigerant is sent to the refrigerant inlet of the compressor 14 through the four-way valve 17, is again pressurized by the compressor 14, is sent to the indoor heat exchanger 13, and the above process is repeated.

On the other hand, during the cooling operation, the air conditioner 2 has the refrigerant outlet of the compressor 14 connected to the air conditioning outdoor heat exchanger 15 side of the refrigerant flow path by the four-way valve 17 and the refrigerant inlet of the compressor 14 is connected to the refrigerant flow path. To the indoor heat exchanger 13 side.
As a result, the gaseous refrigerant that has been pressurized by the compressor 14 to become high temperature and pressure is sent to the outdoor heat exchanger 15 for air conditioning, and heat exchange is performed with the outside air taken into the outdoor unit 42. .
By passing through the outdoor heat exchanger 15 for air conditioning, the refrigerant is condensed and liquefied by taking heat away from the outside air taken into the outdoor unit 42. That is, the outdoor heat exchanger 15 for air conditioning functions as a condenser.

This liquid refrigerant is depressurized by the cooling expansion valve 16a provided on the downstream side of the air-conditioning outdoor heat exchanger 15 to become a low-temperature and low-pressure two-phase refrigerant, and then sent to the indoor heat exchanger 13. Heat exchange is performed with the room atmosphere.
When the refrigerant passes through the indoor heat exchanger 13, it takes heat from the indoor atmosphere and evaporates, thereby cooling the indoor atmosphere. That is, the indoor heat exchanger 13 functions as an evaporator.
The gaseous refrigerant that has passed through the indoor heat exchanger 13 is sent to the refrigerant inlet of the compressor 14 through the four-way valve 17, is again pressurized by the compressor 14, and sent to the outdoor heat exchanger 15 for air conditioning, The above process is repeated.

In the refrigeration apparatus 3, the gaseous refrigerant pressurized to high temperature and high pressure by the compressor 24 is sent to the outdoor heat exchanger 25 for refrigeration and exchanges heat with the outside air taken into the outdoor unit 42. Done. That is, the refrigeration outdoor heat exchanger 25 functions as a condenser.
The liquid refrigerant condensed and liquefied by the refrigeration outdoor heat exchanger 25 in this manner is depressurized by the expansion valve 26 provided on the downstream side of the refrigeration outdoor heat exchanger 25, and a low-temperature low-pressure two-phase refrigerant and Become.
This low-temperature and low-pressure two-phase refrigerant is sent to the indoor heat exchanger 23 to exchange heat with the atmosphere in the refrigerated showcase 21.
By passing through the indoor heat exchanger 23, the refrigerant takes heat from the atmosphere in the refrigerated showcase 21 and evaporates, whereby the atmosphere in the refrigerated showcase 21 is cooled. That is, the indoor heat exchanger 23 functions as an evaporator.
The gaseous refrigerant that has passed through the indoor heat exchanger 23 is sent to the refrigerant inlet of the compressor 24, is again pressurized by the compressor 24, and sent to the outdoor heat exchanger 25 for refrigeration, and the above process is repeated. It is.

In the refrigeration apparatus 4, the gaseous refrigerant that has been pressurized by the compressor 34 to a high temperature and high pressure is sent to the refrigeration outdoor heat exchanger 35, and heat exchange is performed between the high temperature and high pressure refrigerant and the outdoor atmosphere. . That is, the freezing outdoor heat exchanger 35 functions as a condenser.
The liquid refrigerant condensed and liquefied by the refrigeration outdoor heat exchanger 35 in this manner is decompressed by the expansion valve 36 provided on the downstream side of the refrigeration outdoor heat exchanger 35, and the low-temperature and low-pressure two-phase refrigerant and Become.
The low-temperature and low-pressure two-phase refrigerant is sent to the indoor heat exchanger 33 and heat exchange is performed with the atmosphere in the refrigeration showcase 31.
By passing through the indoor heat exchanger 33, the refrigerant takes heat from the atmosphere in the refrigerated showcase 31 and evaporates, whereby the atmosphere in the refrigerated showcase 31 is cooled. That is, the indoor heat exchanger 33 functions as an evaporator.
The gaseous refrigerant that has passed through the indoor heat exchanger 33 is sent to the refrigerant inlet of the compressor 34, is again pressurized by the compressor 34, and sent to the outdoor heat exchanger 35 for refrigeration, and the above process is repeated. It is.

In the supercooling device 41, the gaseous refrigerant that has been pressurized by the compressor 47 to a high temperature and high pressure is sent to the outdoor heat exchanger 48, and heat exchange is performed between the high temperature and high pressure refrigerant and the outdoor atmosphere. That is, the outdoor heat exchanger 48 functions as a condenser that condenses and liquefies the gaseous refrigerant.
The liquid refrigerant condensed and liquefied by the outdoor heat exchanger 48 in this manner is decompressed by the electronic expansion valve 49 provided on the downstream side of the outdoor heat exchanger 48 to become a low-temperature and low-pressure two-phase refrigerant.

This low-temperature and low-pressure two-phase refrigerant is sent to the supercooling heat exchanger 50, and the air conditioning outdoor heat exchanger 15, the refrigerating outdoor heat exchanger 25, and the refrigeration in each of the refrigerant circuits 12, 22, and 32. Heat is exchanged with the refrigerant that has passed through the outdoor heat exchanger 35, and the refrigerant in each refrigerant circuit 12, 22, 32 is cooled. That is, the supercooling heat exchanger 50 functions as an evaporator.
Then, when the refrigerant passes through the supercooling heat exchanger 50, it takes heat from the refrigerant in each refrigerant circuit 12, 22, 32, evaporates, is sent to the refrigerant inlet of the compressor 47, and is compressed again. The pressurization by the machine 47 is received and sent to the outdoor heat exchanger 48, and the above process is repeated.

Here, in FIG. 4, the Mollier diagram showing the refrigerating cycle of these air conditioning apparatus 2, the refrigeration apparatus 3, and the freezing apparatus 4 is shown. In FIG. 4, the state before pressurization by the compressor is indicated by point A, and the state after pressurization is indicated by point B. In addition, a state where heat is exchanged with the outside air that has been sent to each outdoor heat exchanger by the compressor and taken into the outdoor unit 42 is indicated by C ₀ point. Then, the state after being subcooled by the subcooling apparatus 41 and C ₁ point, showing the state of being expanded and decompressed by the electronic expansion valve in point D.
Here, in FIG. 4, the refrigeration cycle in the state which does not operate the supercooling device 41 is shown with the broken line for the comparison.

As shown in FIG. 4, in the air conditioning / refrigeration / refrigeration facility 1 according to the present embodiment, the refrigerant circulated in the refrigeration cycle formed by the refrigerant circuits 12, 22, 32 is respectively the outdoor heat exchanger 15 for air conditioning. Then, after being condensed and liquefied by the refrigeration outdoor heat exchanger 25 and the freezing outdoor heat exchanger 35, the refrigeration outdoor heat exchanger 25 is further cooled by the supercooling device 41 to be in a supercooled state.
Then, the enthalpy difference Δh (the amount of change in enthalpy) of the refrigerant increases by the amount of this supercooling between the inlet side and the outlet side of each indoor heat exchanger that constitutes the refrigeration cycle.
That is, in this air conditioning / refrigeration / refrigeration facility 1, since the amount of heat absorbed by the refrigerant in each indoor heat exchanger increases compared to the case where the supercooling device 41 is not provided, the circulation flow rate of the refrigerant can be reduced. The COP of the refrigeration cycle is higher than before.

Here, since the temperature of the ambient atmosphere of the indoor heat exchanger (evaporator) is low in the refrigeration apparatus 3 and the refrigeration apparatus 4, the refrigerant evaporation temperature is low, the low pressure is low, and the pressure difference is large. Inefficient compared to. For this reason, the COP of the entire facility depends on the efficiency of the refrigeration apparatus 3 and the refrigeration apparatus 4.
In the air conditioning / refrigeration / refrigeration facility 1, the refrigerant is supercooled by the highly efficient supercooling device 41 as described above, and in particular, the efficiency of the refrigeration device 2 and the freezing device 3 is improved. COP as the whole equipment is high.

  Further, in this air conditioning / refrigeration / refrigeration facility 1, since the air conditioner 2, the refrigerator 3, and the highly efficient subcooler independent of the refrigeration device 4 are used as the supercooler 41, the air conditioner 2, appropriate subcooling can be performed according to the performance of the refrigeration apparatus 3 and the refrigeration apparatus 4, and the COP of the entire facility is further improved.

In the air conditioning / refrigeration / refrigeration facility 1, the outdoor heat exchangers of the air conditioner 2, the refrigeration apparatus 3, and the refrigeration apparatus 4 are installed in one outdoor unit 42. Heat exchange is performed between the refrigerant circulating in the exchanger and the outside air taken into the outdoor unit 42 by the blower 51.
That is, in this air conditioning / refrigeration / refrigeration facility 1, each outdoor heat exchanger shares the facilities of the outdoor unit 42 such as a blower, so that the apparatus cost is low and the installation space of the outdoor unit is small.

  Here, since the refrigeration outdoor heat exchanger 25 and the refrigeration outdoor heat exchanger 35 are used as condensers in the refrigeration apparatus 3 and the refrigeration apparatus 4, respectively, a refrigerant having a temperature higher than the outside air temperature is supplied. For this reason, the outdoor air which contacted the outdoor heat exchanger 25 for refrigeration and the outdoor heat exchanger 35 for freezing becomes higher temperature than before heat exchange.

In this air conditioning / refrigeration / refrigeration facility 1, the refrigeration outdoor heat exchanger 25 and the refrigeration outdoor heat exchanger 35 are arranged close to the upstream side of the airflow generated by the blower 51 with respect to the air conditioning outdoor heat exchanger 15. Has been.
For this reason, the outdoor air heat exchanger 15 for air conditioning is fed with high-temperature outdoor air that has passed through at least one of the outdoor heat exchanger 25 for refrigeration and the outdoor heat exchanger 35 for freezing, Heat exchange is performed between the high-temperature outside air and the refrigerant circulating in the air-conditioning outdoor heat exchanger 15.
In addition, heat is transmitted to the air conditioning outdoor heat exchanger 15 from the refrigeration outdoor heat exchanger 25 and the freezing outdoor heat exchanger 35 by radiant heat transfer.

That is, in the air conditioning / refrigeration / refrigeration facility 1, the refrigerant in the outdoor heat exchanger 15 for air conditioning is heated using the exhaust heat of the outdoor heat exchanger 25 for refrigeration and the outdoor heat exchanger 35 for freezing. Thus, the evaporation of the refrigerant is promoted.
Thereby, in this air-conditioning / refrigeration / refrigeration facility 1, the performance of the air-conditioning outdoor heat exchanger 15 as an evaporator is enhanced, so that the air-conditioning apparatus 2 is evaporated (that is, the air-conditioning outdoor heat exchanger 15 is evaporated). High efficiency).

  Furthermore, since the air-conditioning / refrigeration / refrigeration facility 1 is provided with the supercooling device 41 as described above and is highly efficient, the circulation flow rate of the refrigerant in the refrigerant circuit 12 of the air conditioner 2 is higher than that of the conventional one. Can be reduced.

  Here, since the outdoor heat exchanger 15 for air conditioning is used as an evaporator during the heating operation of the air conditioner 2, a refrigerant having a temperature lower than the outside air temperature is supplied. For this reason, the moisture contained in the outside air is cooled and condensed by the air-conditioning outdoor heat exchanger 15 to be drained, and frost is generated by further cooling the drain. When frost adheres to the air-conditioning outdoor heat exchanger 15 in this way, heat exchange between the refrigerant and the outside air by the air-conditioning outdoor heat exchanger 15 is hindered, and the performance of the air conditioner 2 deteriorates. In addition, the outdoor heat exchanger 15 for air conditioning is usually provided with a drain pan for receiving drain and appropriately discharging it to the outside of the outdoor heat exchanger 15 for air conditioning. The drain in this drain pan may freeze and not function properly.

  In the air conditioning / refrigeration / refrigeration facility 1, the air conditioning outdoor heat exchanger 15 (including the drain pan) is heated by the exhaust heat of the refrigeration outdoor heat exchanger 25 and the freezing outdoor heat exchanger 35 as described above. The That is, the evaporating temperature of the refrigerant in the air conditioner 2 rises and the refrigeration outdoor heat exchanger 25 and the refrigeration outdoor heat exchanger 35 are used as drain heaters. Therefore, the air conditioner outdoor heat exchange is performed during the heating operation of the air conditioner. It is difficult for frost to adhere to the vessel.

In particular, in the present embodiment, a freezing outdoor heat exchanger 35 is disposed close to the air conditioning outdoor heat exchanger 15, and a freezing outdoor heat exchanger 15 is disposed below the air conditioning outdoor heat exchanger 15. The outside air heated by 35 and raised by heat convection is sent in, and radiant heat transfer from the freezing outdoor heat exchanger 35 occurs.
That is, in this embodiment, since the liquid refrigerant stays in the outdoor heat exchanger 15 for air conditioning, the lower part where frost is likely to be generated is actively heated, so that frost can be effectively eliminated.

  In addition, the amount of exhaust heat of each of the refrigeration outdoor heat exchanger 25 and the freezing outdoor heat exchanger 35 varies depending on the capacity. Since the drain heater does not require a large amount of exhaust heat, for example, of the outdoor heat exchanger 25 for refrigeration and the outdoor heat exchanger 35 for freezing, the one with the smaller amount of exhaust heat is placed below the indoor heat exchanger 15 for air conditioning. To be used as a drain heater and to be used as a drain heater, and to be used as a heat source for heating the outside air at the upstream side of the air-conditioning outdoor heat exchanger 15 by placing the one with the larger amount of exhaust heat close to the upstream side of the air-conditioning outdoor heat exchanger 15 Is preferred.

  In the present embodiment, the refrigeration apparatus 4 has a smaller capacity than the refrigeration apparatus 3, and the circulation flow rate of the refrigerant in the refrigerant circuit 32 of the refrigeration apparatus 4 is transferred to the refrigerant circuit 12 of the air conditioner 2 and the refrigerant circuit 22 of the refrigeration apparatus 3. Compared to 1/6 to 1/10, the amount of heat generated from the freezing outdoor heat exchanger 35 is not so large. For this reason, in this embodiment, the refrigeration outdoor heat exchanger 35 with a small amount of exhaust heat is disposed close to the lower side of the air conditioning outdoor heat exchanger 15 and used as a drain heater, and the refrigeration outdoor heat exchanger with a larger amount of exhaust heat is used. 25 is disposed upstream of the air conditioning outdoor heat exchanger 15 and used as a heat source for heating the outside air.

Further, in the air conditioning / refrigeration / refrigeration facility 1, between the heat exchanger units 25a of the outdoor heat exchanger 25 for refrigeration and between the lowermost heat exchanger unit 25a and each outdoor heat exchanger 35 for freezing. In addition, a part of the outdoor heat exchanger 15 for air conditioning is arranged.
Therefore, in this air conditioning / refrigeration / refrigeration facility 1, a part of the air conditioning outdoor heat exchanger 15 is reliably brought into contact with the outside air that is not heated by the refrigerating outdoor heat exchanger 25 or the freezing outdoor heat exchanger 35. Heat exchange can be performed.
Thereby, when the outdoor heat exchanger 15 for air conditioning is used as a condenser, the condensation of the refrigerant can be promoted. Therefore, in the air conditioning / refrigeration / refrigeration facility 1, the air conditioner 2 is in the cooling operation (that is, The performance of the outdoor heat exchanger 15 for air conditioning can be ensured).

Here, since the refrigerant circuits 12, 22, and 32 of the air conditioning apparatus 2, the refrigeration apparatus 3, and the refrigeration apparatus 4 are independent of each other, even if trouble occurs in any of the refrigerant circuits, the other refrigerant circuits are adversely affected. It is hard to give.
In addition, the air conditioning / refrigeration / refrigeration facility 1 is provided with a supercooling device 41 in the refrigerant circuits 12, 22, 32 of the air conditioning device 2, the refrigeration device 3, and the refrigeration device 4, and the outdoor heat exchanger of each of these devices. Since it is only necessary to change the arrangement, the existing air conditioning apparatus, refrigeration apparatus, and refrigeration apparatus can be used almost as they are to construct the air conditioning, refrigeration, and refrigeration equipment according to the present invention.

[Second Embodiment]
Next, a second embodiment of the present invention will be described with reference to FIG.
The air-conditioning / refrigeration / refrigeration facility 61 according to the present embodiment is the same as the air-conditioning / refrigeration / refrigeration facility 1 shown in the first embodiment, except for the outdoor heat exchanger 15 for air conditioning and the outdoor heat exchanger for refrigeration in the outdoor unit 42. 25 and the arrangement of the refrigeration outdoor heat exchanger 35 are mainly changed.
Hereinafter, members having the same or the same configuration as those of the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

In the present embodiment, not only the refrigerating outdoor heat exchanger 25 but also the freezing outdoor heat exchanger 35 is divided into a plurality of heat exchanger units 35a. Here, these heat exchanger units 35a may be connected in series to the refrigerant circuit 32, or may be connected in parallel.
The heat exchanger unit 25a of the refrigeration outdoor heat exchanger 25 and the heat exchanger unit 35a of the refrigeration outdoor heat exchanger 35 are upstream of the airflow generated by the blower 51 with respect to the air conditioner heat exchanger 15. They are arranged close to each other (side surface side) and alternately arranged in a direction (vertical direction) intersecting the air flow.
A part of the air conditioner outdoor heat exchanger 15 is disposed between the heat exchanger unit 25 a of the refrigeration apparatus 3 and the heat exchanger unit 35 a of the refrigeration apparatus 4.

In the air-conditioning / refrigeration / refrigeration facility 61 configured as described above, the air-conditioning outdoor heat exchanger 15 includes a region facing the heat exchanger unit 25a of the refrigerating outdoor heat exchanger 25 in a direction crossing the air flow. The regions facing the heat exchanger unit 35a of the outdoor heat exchanger 35 for freezing are alternately positioned.
As a result, even if one of the refrigeration outdoor heat exchanger 25 and the freezing outdoor heat exchanger 35 stops and exhaust heat is not supplied from this one heat exchanger unit, the other heat Since the exhaust heat is supplied to each part of the outdoor heat exchanger 15 for air conditioning by the exchanger unit, the performance of the air conditioner 2 is hardly affected.

Here, the arrangement of the outdoor heat exchanger 15 for air conditioning, the outdoor heat exchanger 25 for refrigeration, and the outdoor heat exchanger 35 for freezing in the air conditioning / refrigeration / refrigeration facility according to the present invention is the same as that of the outdoor heat exchanger 15 for air conditioning. On the other hand, the basic idea is that it is arranged in the vicinity of either the refrigeration outdoor heat exchanger 25 or the freezing outdoor heat exchanger 35 on the upstream side or the lower side of the airflow.
For this reason, arrangement | positioning of the outdoor heat exchanger 15 for an air conditioning, the outdoor heat exchanger 25 for refrigeration, and the outdoor heat exchanger 35 for freezing can be variously deformed based on the said basic idea.

For example, in the example shown in FIG. 6, the refrigeration outdoor heat exchanger 25 is disposed close to the upper side of the airflow outdoor heat exchanger 15 on the upstream side of the air flow, and the lower part of the air conditioning outdoor heat exchanger 15. On the other hand, a freezing outdoor heat exchanger 35 is disposed close to the upstream side of the air flow.
In this example, the refrigeration outdoor heat exchanger 25 and the freezing outdoor heat exchanger 35 mainly function as a heat source for heating the outside air with respect to the air conditioning outdoor heat exchanger 15.

In the example shown in FIG. 7, a refrigeration outdoor heat exchanger 25 is disposed close to the air conditioning outdoor heat exchanger 15 on the upstream side of the airflow, and the air conditioning outdoor heat exchanger 15 and the refrigeration outdoor heat exchanger 15 are disposed. A freezing outdoor heat exchanger 35 is disposed in close proximity to the outdoor heat exchanger 25 so as to straddle them.
In this example, the refrigeration outdoor heat exchanger 25 mainly functions as a heat source for heating the outside air with respect to the air conditioning outdoor heat exchanger 15, and the refrigeration outdoor heat exchanger 35 is an air conditioning outdoor heat exchanger. 15 functions mainly as a drain heater.

Further, in the example shown in FIG. 8, a freezing outdoor heat exchanger 35 is disposed close to the upper side of the airflow with respect to the upper part of the air conditioning outdoor heat exchanger 15, and the lower part of the air conditioning outdoor heat exchanger 15. On the other hand, the outdoor heat exchanger 25 for refrigeration is disposed close to the upstream side of the airflow. The refrigerating outdoor heat exchanger 25 is provided so that a part of the refrigerating outdoor heat exchanger 25 is provided below the air conditioning outdoor heat exchanger 15.
In this example, the refrigeration outdoor heat exchanger 25 and the freezing outdoor heat exchanger 35 mainly function as a heat source for heating the outside air with respect to the air conditioning outdoor heat exchanger 15. The refrigeration outdoor heat exchanger 25 also functions as a drain heater with respect to the air conditioning outdoor heat exchanger 15.

Further, in the example shown in FIG. 9, the heat exchanger unit 25 a of the refrigeration outdoor heat exchanger 25 is disposed close to the air conditioning outdoor heat exchanger 15 on the upstream side of the airflow.
Above the air conditioning outdoor heat exchanger 15 and the heat exchanger unit 25a, a refrigeration outdoor heat exchanger 35 is arranged in close proximity so as to straddle them, and below the air heat exchanger unit 25a so as to straddle them. The heat exchanger unit 25a of the outdoor heat exchanger 25 for refrigeration is disposed in proximity.
And between the heat exchanger unit 25a provided in the upstream of the outdoor heat exchanger 15 for an air conditioning, and the heat exchanger unit 25a provided in the downward direction, a part of the outdoor heat exchanger 15 for an air conditioning is arrange | positioned. Yes.

In this example, each heat exchanger unit 25a of the outdoor heat exchanger 25 for refrigeration functions as a heat source or a drain heater for heating the outside air with respect to the outdoor heat exchanger 15 for air conditioning.
Further, since a part of the air-conditioning outdoor heat exchanger 15 is exposed to the upstream side, a part of the air-conditioning outdoor heat exchanger 15 is replaced with the refrigeration outdoor heat exchanger 25 or the freezing outdoor heat exchanger 35. Thus, heat exchange can be performed by reliably contacting the outside air that is not heated.
Thereby, when the outdoor heat exchanger 15 for air conditioning is used as a condenser, condensation of the refrigerant can be promoted. Therefore, in the air conditioning / refrigeration / refrigeration facility 1, the air conditioner 2 is in a cooling operation (ie, The performance of the outdoor heat exchanger 15 for air conditioning can be ensured).

In the example shown in FIG. 10, a refrigeration outdoor heat exchanger 25 is disposed close to the air conditioning outdoor heat exchanger 15, and the refrigeration outdoor heat exchanger 25 is further disposed below the refrigeration outdoor heat exchanger 25. 35 are arranged close to each other.
In this example, the refrigeration outdoor heat exchanger 25 and the freezing outdoor heat exchanger 35 mainly function as drain heaters for the air conditioning outdoor heat exchanger 15.

It is a perspective view showing an example of application of air-conditioning, refrigeration, and freezing equipment concerning a first embodiment of the present invention. It is a figure which shows the structure of the refrigerant circuit of the air conditioning / refrigeration / refrigeration equipment concerning 1st embodiment of this invention. It is a longitudinal cross-sectional view which shows the structure of the outdoor unit and each outdoor heat exchanger of the air-conditioning / refrigeration / refrigeration equipment according to the first embodiment of the present invention. It is a Mollier diagram which shows the refrigerating cycle of the air-conditioning / refrigeration / refrigeration equipment concerning 1st embodiment of this invention. It is a longitudinal cross-sectional view which shows arrangement | positioning of each outdoor heat exchanger in the outdoor unit of the air conditioning / refrigeration / refrigeration equipment concerning 2nd embodiment of this invention. It is a longitudinal cross-sectional view which shows the other structural example of arrangement | positioning of each outdoor heat exchanger in the outdoor unit of the air-conditioning / refrigeration / refrigeration equipment concerning this invention. It is a longitudinal cross-sectional view which shows the other structural example of arrangement | positioning of each outdoor heat exchanger in the outdoor unit of the air-conditioning / refrigeration / refrigeration equipment concerning this invention. It is a longitudinal cross-sectional view which shows the other structural example of arrangement | positioning of each outdoor heat exchanger in the outdoor unit of the air-conditioning / refrigeration / refrigeration equipment concerning this invention. It is a longitudinal cross-sectional view which shows the other structural example of arrangement | positioning of each outdoor heat exchanger in the outdoor unit of the air-conditioning / refrigeration / refrigeration equipment concerning this invention. It is a longitudinal cross-sectional view which shows the other structural example of arrangement | positioning of each outdoor heat exchanger in the outdoor unit of the air-conditioning / refrigeration / refrigeration equipment concerning this invention.

Explanation of symbols

1,61 Air Conditioning / Refrigeration / Refrigeration Equipment 2 Air Conditioning Device 3 Refrigeration Device 4 Refrigeration Device 12, 22, 32 Refrigerating Circuit 15, Air Conditioning Outdoor Heat Exchanger 25 Refrigeration Outdoor Heat Exchanger 25a, 35a Heat Exchanger Unit 35 For Refrigeration Outdoor heat exchanger 41 Supercooling device 42 Outdoor unit 51 Blower

Claims (7)

An air conditioning apparatus, a refrigeration apparatus, and an air conditioning / refrigeration / refrigeration facility provided with a refrigerant circuit including an outdoor heat exchanger and other components independently,
A supercooling device that supercools the refrigerant that has passed through the outdoor heat exchanger in each refrigerant circuit;
One outdoor unit in which the outdoor heat exchanger of each refrigerant circuit is stored;
An air blower that takes outside air into the outdoor unit and makes contact with the outdoor heat exchangers,
In the outdoor unit, at least one of the outdoor heat exchanger of the refrigeration apparatus and the outdoor heat exchanger of the refrigeration apparatus generates the air blower with respect to the outdoor heat exchanger of the air conditioner. Air-conditioning, refrigeration and refrigeration equipment, which is located close to the upstream side of the airflow to be generated.   The at least one of the outdoor heat exchanger of the refrigeration apparatus and the outdoor heat exchanger of the refrigeration apparatus is disposed close to the lower side of the outdoor heat exchanger of the air conditioner. Item 1. Air conditioning / refrigeration / refrigeration equipment.   The air conditioner / refrigerator / refrigeration facility according to claim 1, wherein a part of the outdoor heat exchanger of the air conditioner is exposed upstream of the airflow. At least one of the outdoor heat exchanger of the refrigeration apparatus and each outdoor heat exchanger of the refrigeration apparatus is divided into a plurality of heat exchanger units,
At least a part of these heat exchanger units are disposed close to the upstream side of the airflow with respect to the outdoor heat exchanger of the air conditioner and are spaced apart in a direction intersecting the airflow. The air conditioning / refrigeration / refrigeration equipment according to claim 3, wherein a part of the outdoor heat exchanger of the air conditioner is disposed between the heat exchanger units. Each outdoor heat exchanger of the refrigeration apparatus and the refrigeration apparatus is divided into a plurality of heat exchanger units,
The outdoor heat exchanger of the refrigeration apparatus and the outdoor heat exchanger of the refrigeration apparatus are configured such that at least a part of each of the heat exchanger units has the air flow with respect to the outdoor heat exchanger of the air conditioner. The heat exchanger unit of the refrigeration apparatus and the heat exchanger unit of the refrigeration apparatus are alternately arranged in the direction intersecting with the air flow while being arranged close to the upstream side. Air-conditioning, refrigeration, and freezing equipment in any one of 1-3.   The outdoor heat exchanger of the air conditioner is partially disposed between the heat exchanger unit of the refrigeration apparatus and the heat exchanger unit of the refrigeration apparatus. Air conditioning / refrigeration / refrigeration equipment. An air conditioning apparatus, a refrigeration apparatus, and an air conditioning / refrigeration / refrigeration facility provided with a refrigerant circuit including an outdoor heat exchanger and other components independently,
A supercooling device that supercools the refrigerant that has passed through the outdoor heat exchanger in each refrigerant circuit;
It has one outdoor unit in which the outdoor heat exchanger of each refrigerant circuit is stored,
In the outdoor unit, at least one of the outdoor heat exchanger of the refrigeration apparatus and the outdoor heat exchanger of the refrigeration apparatus is disposed close to the lower side of the outdoor heat exchanger of the air conditioner. Air conditioning, refrigeration and refrigeration equipment.

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