JP2020098084A - Air conditioning system - Google Patents

Abstract

To provide an air conditioning system that enables reduction in a device size and can treat heat discharged from a refrigerator with a simple configuration.SOLUTION: An air conditioning system includes: a refrigerator air conditioner 40 supplying air for treating heat discharged from a refrigerator 20; and a controller 50 serving as a supply air temperature control section for controlling a temperature of air to be supplied from the refrigerator air conditioner 40. Due to this, treatment can be performed with a simple configuration without requiring a device for discharging heat discharged from the refrigerator 20 of a refrigeration open showcase 10 to outside a store 1.SELECTED DRAWING: Figure 2

Description

TECHNICAL FIELD The present invention relates to an air conditioning system for a store in which a showcase including a refrigerator is installed.

For example, in a store such as a convenience store, a showcase including a refrigerator including a compressor and a condenser may be installed. The heat discharged from the refrigerator built into the showcase acts to reduce the heating load when the store is heated, such as during the winter, but it cools the store during the summer. In this state, it acts to increase the cooling load.

In a conventional store, in order to suppress an increase in the cooling load due to the heat discharged from the refrigerator, air that releases the heat discharged from the refrigerator is supplied from outside the store and heated by the heat discharged from the refrigerator. There is known one provided with an exhaust heat treatment device for discharging the generated air into or out of the store (for example, refer to Patent Document 1).

JP, 2016-008811, A

In a store equipped with the exhaust heat treatment device, an air supply flow path for supplying air outside the store to the refrigerator and an exhaust flow path for discharging air discharged from the refrigerator outside the store are provided in the ceiling. It is necessary to install the equipment in a large number, and especially when the number of refrigerators is large, the equipment becomes complicated and the size becomes large. Further, in a store equipped with the exhaust heat treatment apparatus, air outside the store, which becomes hot in the summer or the like, is supplied to the refrigerator, so that it is necessary to increase the heat exchange area with the refrigerant in the condenser. In addition, when supplying low temperature outside the store to the refrigerator in winter etc., the air discharged from the refrigerator is lower than the temperature inside the store. Supplying it to the store will increase the heating load.

An object of the present invention is to provide an air conditioning system that can suppress the increase in size of the device and can process the heat discharged from the refrigerator with a simple configuration.

In order to achieve the above-mentioned object, the air conditioning system of the present invention is an air conditioning system for a store in which a showcase having a built-in refrigerator is installed, wherein air for treating heat discharged from the refrigerator is An air conditioner for a refrigerator to be supplied and a supply air temperature control unit for controlling the temperature of air supplied from the air conditioner for a refrigerator are provided.

According to the present invention, it is possible to perform processing with a simple configuration without requiring a device for discharging the heat discharged from the refrigerator of the showcase to the inside or outside of the store. As a result, it is possible to prevent the device from becoming large.

It is a schematic block diagram of the air conditioning system which shows 1st Embodiment of this invention. It is a main part schematic block diagram of an air conditioning system. It is a front view of an open showcase. It is a block diagram showing a control system. It is a principal part schematic block diagram of the air conditioning system which shows 2nd Embodiment of this invention. It is a block diagram which shows the control system of the air conditioning system which shows 3rd Embodiment of this invention.

1 to 4 show a first embodiment of the present invention.

As shown in FIG. 1, the air conditioning system of the present invention is for adjusting the temperature and humidity in a store 1 such as a convenience store.

The store 1 is configured in a substantially rectangular parallelepiped space formed inside a building, and has a doorway 1a provided at one end side in the longitudinal direction of a side wall at one end side in the lateral direction of the space.

In the store 1, a plurality of product shelves 2 arranged at intervals in the lateral direction of the store 1 and extending in the longitudinal direction, and a counter 3 provided at one end side in the store 1 in the longitudinal direction. Adjacent to the warehouse 4 provided on the other end side in the longitudinal direction within the store 1, the walk-in refrigerator 5 provided in the warehouse 4, and the product shelf 2 located on the other end side in the lateral direction within the store 1. A freezing open showcase 6 provided side by side, a reach-in freezer 7 and a plurality of refrigerating open showcases 10 provided along the wall surface on the other end side in the lateral direction in the store 1 are installed. There is.

The walk-in refrigerator 5 is a product provided inside the warehouse 4 for the product take-out opening provided on the aisle side of the store 1 and a worker who replenishes the product display shelves inside the store with goods. It is formed in a box shape having a refill opening. The walk-in refrigerator 5 has a product take-out opening that is opened and closed by a product take-out door through which a product displayed on an internal product display shelf can be visually confirmed by a transparent member such as a glass plate. It is opened and closed by the door.

The frozen open showcase 6 is a flat open showcase having an open top surface, and has a product storage portion for storing products such as ice confectionery inside. The frozen open showcase 6 has an air curtain formed at the opening on the upper surface.

The reach-in freezer 7 is a freezer in which a front surface is opened and a product storage unit for storing products such as frozen foods is formed inside. The reach-in freezer 7 is opened and closed by a product take-out door whose front opening is made visible by a transparent member such as a glass plate.

The plurality of refrigerating open showcases 10 are multi-stage open showcases each having an open front surface. As shown in FIG. 2, the refrigerating open showcase 10 is provided with a product storage unit 11 for storing products inside the opening, and a plurality of product display shelves 11a are provided in the product storage unit 11 in the vertical direction. ing. The refrigerating open showcase 10 has an air passage 12 formed along the lower surface side, the rear surface side, and the upper surface side of the product storage unit 11. Inside the ventilation passage 12, a first blower 12a for circulating air in the order of the lower surface side, the rear surface side, and the upper surface side of the product storage unit 11 is provided. An air outlet 12b facing downward is formed on the front end side of the ventilation passage 12 located on the upper surface side of the product storage unit 11. An air inlet 12c facing upward is formed on the front end side of the ventilation passage 12 located on the lower surface side of the product storage unit 11. An air curtain is formed at the front opening of the product storage unit 11 by the air flowing through the ventilation passage 12 being discharged from the air discharge port 12b and sucked from the air suction port 12c. Further, in the ventilation passage 12 located at the upper part on the back side of the refrigerated open showcase 10, an evaporator 12d for evaporating the refrigerant to cool the air flowing through the ventilation passage 12, and the refrigerant and heat in the evaporator 12d are used. A second blower 12e for circulating the exchanged air is provided.

In addition, each of the plurality of refrigerating open showcases 10 is a refrigerator built-in type showcase in which a refrigerator 20 that circulates a refrigerant with the evaporator 12d to form a refrigeration cycle is built.

The refrigerator 20 includes a compressor (not shown) that compresses and discharges the refrigerant, a condenser 21 that condenses the refrigerant discharged from the compressor, and an expansion (not shown) that expands the refrigerant condensed in the condenser 21. It has a valve and a condenser blower 22 for circulating the air that exchanges heat with the refrigerant in the condenser 21. Devices such as the condenser 21 and the condenser blower 22 that constitute the refrigerator 20 are housed in the casing 23. The casing 23 is arranged on the front side of the upper part of the refrigerated open showcase 10.

On the front surface of the casing 23, an inflow port 23a for allowing air to flow into the casing 23 is provided. Further, an outlet 23b for letting out the air that has circulated in the casing 23 is provided on the upper surface of the casing 23.

Further, on the downstream side in the air circulation direction of the condenser 21 in the casing 23, drain water such as defrost water generated when removing the frost attached to the evaporator or the dew condensation water generated when the evaporator 12d cools the air. A drain water evaporation processing mechanism 24 for evaporating water is provided.

The drain water evaporation processing mechanism 24 has a drain pan 24a for storing drain water, and an evaporation promoting member 24b made of a nonwoven fabric for promoting evaporation of the drain water stored in the drain pan 24a. In the upper part of the refrigerating open showcase 10, a drain water flow path (not shown) is formed between the evaporator 12d and the drain pan 24a and is inclined downward from the evaporator 12d toward the drain pan 24a. The drain water generated in the evaporator 12d flows through the drain water flow path and is stored in the drain pan 24a. The drain water evaporation processing mechanism 24 evaporates the drain water by bringing the air flowing through the casing 23 into contact with the evaporation promoting member 24b that has absorbed the drain water stored in the drain pan 24a.

A guide plate 23c for guiding air supplied from an air conditioner for a refrigerator, which will be described later, toward the inlet 23a is provided on the front side of the upper portion of the refrigerating open showcase 10. The guide plate 23c extends outside the inflow port 23a in the width direction of the inflow port 23a and extends upward.

As shown in FIG. 3, the plurality of refrigerated open showcases 10 are arranged along the wall surface in the store 1 so as to be adjacent to each other in the width direction. Of the plurality of refrigerating open showcases 10 arranged in the width direction, the outlet 23b of the refrigerator 20 of the refrigerating open showcase 10 located on the widthwise central portion side has a flow direction of air flowing out from the outlet 23b. A distribution direction changing plate 23d for changing the is provided. The flow direction changing plate 23d is a member that extends obliquely upward in the width direction from the edge of the outlet 23b. The distribution direction changing plate 23d directs the air flowing out from the refrigerator 20 of the refrigerating open showcase 10 located in the width direction central portion side in the plurality of refrigerating open showcases 10 arranged in the width direction outward in the width direction. To change the distribution direction.

Inside the ceiling of the store 1, as shown in FIG. 1, a plurality of main air conditioners 30 for adjusting the temperature and humidity of the air in the store 1 and a refrigerator 20 of the refrigerating open showcase 10 are discharged. A plurality of refrigerator air conditioners 40 for processing heat are installed.

The plurality of main air conditioners 30 and the plurality of refrigerator air conditioners 40 correspond to indoor units of an air conditioner in which a refrigeration cycle is formed between an outdoor unit and an indoor unit. The plurality of main air conditioners 30 and the plurality of refrigerator air conditioners 40 each have an indoor heat exchanger (not shown) for exchanging heat between the air supplied into the store 1 and the refrigerant.

The plurality of main air conditioners 30 are arranged at intervals in the longitudinal direction of the store 1 on the doorway 1a side in the store 1. The plurality of main air conditioners 30 are interlocked with each other to switch operation modes such as a cooling operation mode, a heating operation mode, and a dehumidification operation mode. Each main air conditioner 30 is a so-called four-direction ceiling cassette type air conditioner having a square panel 31 attached to the ceiling surface C located below. Each main air conditioner 30 sucks the air in the store 1 from the air suction part provided in the central part of the panel 31, and enters the store from the air outlets provided along each side of the outer peripheral part of the panel 31. Blow out the air.

The plurality of refrigerator air conditioners 40 are arranged at intervals in the longitudinal direction in the store 1 on the side of the plurality of refrigerating open showcases 10 in the store 1. The plurality of refrigerator air conditioners 40 sucks the air in the store 1 to cool it, and supplies the cooled air into the store 1. Each refrigerator air conditioner 40 is a so-called built-in air conditioner. In each refrigerator air conditioner 40, as shown in FIG. 2, an air intake port (not shown) located in the ceiling and a rectangular air intake panel 41 attached to the ceiling surface C are connected via a duct 43. An air outlet (not shown) located in the ceiling and a plurality of outlets 42 attached to the ceiling surface C are connected via a duct 44. Here, the air intake panel 41 is arranged on the ceiling surface C of the store 1 at a position avoiding above the frozen open showcase 6.

The plurality of outlets 42 are so-called line-type or universal-type outlets, respectively. As shown in FIG. 1, the plurality of outlets 42 are arranged above the plurality of refrigerating open showcases 10 along the front surface of the refrigerating open showcases 10 at predetermined intervals. The plurality of outlets 42 have an outlet direction adjusting mechanism (not shown) for adjusting the outlet direction of the air when the air is blown from the ceiling surface C into the store 1. As shown in FIG. 2, the air outlets of the plurality of outlets 42 are directed to the inlet 23a of the refrigerator 20 of the refrigerating open showcase 10 located near the lower portion thereof.

Further, the air conditioning system of the present invention includes the controller 50 for controlling the operations of the main air conditioner 30 and the air conditioner 40 for the refrigerator in order to bring the temperature inside the store 1 to the set temperature.

The controller 50 has a CPU, a ROM, and a RAM. When the controller 50 receives an input signal from the device connected to the input side, the CPU reads the program stored in the ROM based on the input signal and stores the state detected by the input signal in the RAM. , Sends output signals to devices connected to the output side.

On the input side of the controller 50, as shown in FIG. 4, a setting input unit 51 for inputting settings such as a target temperature in the store 1 and an in-store temperature sensor 52 for detecting the temperature in the store 1. A refrigerator exhaust temperature sensor 53 for detecting the temperature above the refrigerator 20 of the refrigerating open showcase 10 in the store 1 is connected. The main air conditioner 30 and the refrigerator air conditioner 40 are connected to the output side of the controller 50.

In the air conditioning system configured as described above, the main air conditioner 30 sucks the air in the store 1, heats or cools it by the indoor heat exchanger, and blows it out into the store 1. At that time, the controller 50 blows out from the main air conditioner 30 into the store 1 based on the temperature detected by the in-store temperature sensor 52 in order to set the temperature in the store 1 to the set temperature Ts set in the setting input unit 51. Control the temperature of the air.

The refrigerator air conditioner 40 sucks the air in the store 1 from the air suction panel 41, cools it by the indoor heat exchanger, and cools the air cooled from the air outlet 42 toward the inlet 23 a of the refrigerator 20. Exhaust heat treatment operation is performed.

Further, the refrigerator 20 causes the air blown into the store 1 from the refrigerator air conditioner 40 to flow into the casing 23 from the inflow port 23 a by driving the condenser blower 22. At this time, the air blown from the refrigerator air conditioner 40 into the store 1 is guided toward the inlet 23a by the guide plate 23c, so that the air is blown to the front side of the product storage unit 11 of the refrigerated open showcase 10. Distribution is regulated. The air that has flowed into the casing 23 is heated by exchanging heat with the refrigerant in the condenser 21, flows through the casing 23, and flows out from the outlet 23b into the store 1.

At this time, the controller 50 sets the temperature of the air flowing out from the outlet 23b of the refrigerator 20 to the set temperature Ts in the store 1 based on the temperature detected by the refrigerator exhaust temperature sensor 53. The temperature of the air blown from the air conditioner 40 toward the refrigerator 20 is controlled.

Further, in the state where the plurality of refrigerating open showcases 10 are arranged in the width direction, the temperature above the refrigerator 20 on the central portion side in the width direction tends to be high. However, the air flowing out from the outlet 23b of the refrigerator 20 on the central portion side in the width direction has its flow changed to the outer side in the width direction by the flow direction changing plate 23d. Retention is suppressed.

As described above, according to the air conditioning system of the present embodiment, the temperature of the air conditioner 40 for the refrigerator, which supplies the air for processing the heat discharged from the refrigerator 20, and the temperature of the air supplied from the air conditioner 40 for the refrigerator. And a controller 50 as a supply air temperature control unit for controlling the.

As a result, it is possible to perform the processing with a simple configuration without requiring a device for discharging the heat discharged from the refrigerator 20 of the refrigerated open showcase 10 to the outside of the store 1. Therefore, it is possible to suppress an increase in the size of the device.

Further, the controller 50 moves from the refrigerator air conditioner 40 to the refrigerator 20 so that the temperature of the air heated by the heat discharged from the refrigerator 20 and flowing into the store 1 becomes the set temperature Ts in the store 1. Controls the temperature of the air supplied to.

Thereby, the temperature of the air supplied from the refrigerator air conditioner 40 to the refrigerator 20 is set to be lower than the set temperature Ts in the store 1 to reduce the compression ratio of the compressor constituting the refrigerator 20. Thus, it is possible to reduce the power consumption for driving the compressor.

Further, the refrigerator 20 is provided on the upper part of the refrigerating open showcase 10, and an inlet port 23a into which air for releasing heat discharged from the refrigerator 20 flows is provided on a side surface of the refrigerator 20. An outlet 23b for letting out the air from which the heat from the refrigerator 20 is discharged is provided on the upper surface of the refrigerator 20, and the ceiling surface C in the store 1 is supplied from the refrigerator air conditioner 40 into the store 1. A blowout port 42 that blows air toward the inflow port 23a is provided.

This makes it possible to supply the air discharged from the refrigerator air conditioner 40 to the refrigerator 20 without directly connecting the refrigerator air conditioner 40 and the refrigerator 20 to each other. It is possible to reduce the construction cost.

A guide plate 23c is provided outside the front of the inflow port 23a so as to extend upward and guides the air blown out from the air outlet 42 to the inflow port 23a.

As a result, the air blown out from the blowout port 42 is guided by the guide plate 23c toward the inflow port 23a, and it becomes possible to regulate the circulation to the front side of the refrigerated open showcase 10.

In addition, a circulation direction changing plate 23d that changes the circulation direction of the air flowing out from the outlet port 23b of the refrigerator 20 located on the center side in the width direction of the three or more refrigerating open showcases 10 arranged side by side to the width direction outer side is provided. ing.

As a result, the air flowing out from the outlet 23b of the refrigerator 20 on the central portion side in the width direction can be circulated to the outer side in the width direction by the circulation direction changing plate 23d, and is heated on the central portion side in the width direction. It is possible to suppress the retention of air.

Moreover, the main air conditioner 30 corresponding to the heat load in the store 1 excluding the heat load from the refrigerator 20 is provided.

As a result, the temperature and humidity inside the store 1 are adjusted by the main air conditioner 30, and the heat discharged from the refrigerator 20 of the refrigerating open showcase 10 is processed by the refrigerator air conditioner 40. It becomes possible to reliably set the temperature in the store 1 to the set temperature Ts without causing a shortage of the cooling capacity in the store 1.

FIG. 5 shows a second embodiment of the present invention. The same components as those in the above-described embodiment are designated by the same reference numerals.

In the air conditioning system of the present embodiment, a casing 23 that houses the condenser 21 and the condenser blower 22 is provided on the rear side of the upper portion of the refrigerated open showcase 10. The inflow port 23 a is provided on the upper surface of the casing 23. The outflow port 23b is provided in front of the inflow port 23a on the upper surface of the casing 23. An end of a duct 44 for circulating the air discharged from the refrigerator air conditioner 40 is directly connected to the inflow port 23a. The duct 44 extends downward along the wall surface of the store 1 on the lower side of the ceiling surface C, and the end portion is connected to the inflow port 23a.

In the air conditioning system configured as described above, the air discharged from the refrigerator air conditioner 40 directly flows into the casing 23 via the duct 44. The air sucked into the casing 23 is heated by exchanging heat with the refrigerant in the condenser 21, flows through the casing 23, and flows out from the outflow port 23b.

Thus, according to the air conditioning system of the present embodiment, similar to the above-described embodiment, a device for discharging the heat discharged from the refrigerator 20 of the refrigerating open showcase 10 to the outside of the store 1 is required. Without this, processing can be performed with a simple configuration. Therefore, it is possible to suppress an increase in the size of the device.

In addition, the refrigerator 20 is provided in the upper portion of the refrigerating open showcase 10, and the refrigerator 20 has an inlet 23 a for sucking the air for discharging the heat discharged from the refrigerator 20 and the refrigerator 20. And an outlet 23b through which the air heated by the heat flows out upward, and a duct 44 through which the air supplied from the refrigerator air conditioner 40 to the refrigerator flows is connected to the inlet 23a. ing.

As a result, the air supplied from the refrigerator air conditioner 40 can reliably flow into the casing 23 of the refrigerator 20, so that the heat discharged from the refrigerator 20 can be treated more efficiently. It becomes possible.

FIG. 6 shows a third embodiment of the present invention. The same components as those in the above-described embodiment are designated by the same reference numerals.

The air conditioning system of the present embodiment does not have the circulation direction changing plate 23d of the first embodiment, and a plurality of refrigerating open showcases 10 arranged side by side on the input side of the controller 50 as shown in FIG. First to mth refrigerator exhaust gas temperature sensors 53-1, 53-2,..., 53-m (hereinafter 53) for detecting temperatures at a plurality of locations (n locations) in the width direction above the refrigerator 20. -1 to m) are connected. Further, on the output side of the controller 50, the condenser blowers 22-1, 22-2,..., 22-n of the refrigerator 20 corresponding to each of the plurality of refrigerating open showcases 10 (hereinafter, 22-1 to n). Is described) is connected.

In the air conditioning system configured as described above, the rotation speed of the condenser blower 22 of each refrigerator 20 is adjusted based on the temperatures detected by the first to m-th refrigerator exhaust gas temperature sensors 53-1 to m. The flow rate from the outlet 23b. For example, when the temperature above the center portion in the width direction of the refrigerating open showcases 10 arranged side by side is higher than both sides in the width direction, the air flow rate of the blower 22 for the condenser of the refrigerator 20 located on the center portion side in the width direction. Is set to be larger than the blowing amount of the condenser blowers 22 on both sides in the width direction. As a result, the temperature above the plurality of refrigerating open showcases 10 arranged side by side is made uniform over the width direction.

Thus, according to the air conditioning system of the present embodiment, similar to the above-described embodiment, a device for discharging the heat discharged from the refrigerator 20 of the refrigerating open showcase 10 to the outside of the store 1 is required. Without this, processing can be performed with a simple configuration. Therefore, it is possible to suppress an increase in the size of the device.

Further, by adjusting the air flow rates of the condenser blowers 22-1 to 22-9 in the refrigerators 20 of the plurality of refrigerating open showcases 10 arranged side by side, the air above the plurality of refrigerating open showcases 10 in the width direction is adjusted. Control the temperature of.

As a result, the air flowing out from the outlet 23b of the refrigerator 20 on the widthwise central portion side in the plurality of refrigerating open showcases 10 arranged side by side in the width direction is adjusted by adjusting the respective air volumes of the plurality of condenser blowers 22. It becomes possible to circulate, and it becomes possible to suppress the retention of the heated air on the central portion side in the width direction.

In the above embodiment, the condenser 21 and the condenser blower 22 are housed in the casing 23 of the refrigerator 20, but the present invention is not limited to this. Since the compressor constituting the refrigerator 20 also discharges heat into the store 1 by driving, the compressor is housed in the casing 23 together with the condenser 21 and the condenser blower 22, and the heat discharged from the compressor is frozen. The processing may be performed by the machine air conditioner 40.

Further, in the embodiment, the air conditioner for a refrigerator is controlled by the controller 50 so that the temperature of the air heated by the heat released from the refrigerator 20 and flowing into the store 1 becomes the set temperature Ts in the store 1. Although the temperature of the air supplied from 40 to the refrigerator 20 is controlled, the temperature is not limited to this. For the refrigerator, the controller 50 causes the temperature of the air heated by the heat released from the refrigerator 20 and flowing into the store 1 to be a temperature (Ts+A) higher than the set temperature Ts in the store 1 by a predetermined temperature. The temperature of the air supplied from the air conditioner 40 to the refrigerator 20 may be controlled. In this case, the heat released from the refrigerator 20 can be used for heating the inside of the store while the main air conditioner 30 is in the heating operation such as in winter.

Further, in the embodiment, the air conditioner for a refrigerator is controlled by the controller 50 so that the temperature of the air heated by the heat released from the refrigerator 20 and flowing into the store 1 becomes the set temperature Ts in the store 1. Although the temperature of the air supplied from 40 to the refrigerator 20 is controlled, the temperature is not limited to this. For example, the controller 50 may control the temperature of the air supplied from the refrigerator air conditioner 40 to the refrigerator 20 so as to reach the set temperature Ts in the store 1. In this case, the heat discharged from the refrigerator 20 is processed by the refrigerator air conditioner 40 having a higher coefficient of performance than the refrigerating open showcase 10, so that the heat is discharged from the refrigerator 20. It becomes possible to process heat efficiently. Further, when the main air conditioner 30 performs a heating operation in winter or the like, the air conditioner 40 for the refrigerator is in a stopped state or only blows air, so that the heat released from the refrigerator 20 is used for heating the store. Can be used. Further, the controller 50 controls the temperature of the air supplied from the refrigerator air conditioner 40 to the refrigerator 20 such that the temperature is a predetermined temperature lower than the set temperature Ts in the store 1 (Ts-B). May be.

Further, in the above-described embodiment, the main air conditioner 30 is a four-direction ceiling cassette type air conditioner, and the refrigerator air conditioner 40 is a built-in air conditioner. However, the present invention is not limited to this. is not. As the main air conditioner 30 and the refrigerator air conditioner 40, a four-direction ceiling cassette type air conditioner or a built-in type air conditioner may be used.

Further, in the above embodiment, the main air conditioner 30 and the air conditioner 40 for the refrigerator use the indoor unit of the air conditioner in which the refrigeration cycle is formed between the outdoor unit and the indoor unit. It is not limited to this. As the main air conditioner 30 and the air conditioner 40 for the refrigerator, for example, an air handling unit or a fan coil unit that exchanges heat between cold water or hot water generated by the cold/hot water generator and the air supplied to the store 1 may be used. Good.

Moreover, in the said embodiment, while adjusting the temperature in the shop 1 with the some main air conditioner 30 and the some air conditioner 40 for refrigerators, the heat|fever discharged from the refrigerator 20 is processed. Although shown, it is not limited to this. The main air conditioner 30 and the refrigerator air conditioner 40 may each be configured by one air conditioner.

Further, in the above-described embodiment, the main air conditioner 30 is connected to the controller 50 together with the refrigerator air conditioner 40, and the controller 50 controls the main air conditioner 30. However, the present invention is not limited to this. The main air conditioner 30 may be controlled by a dedicated controller different from the controller 50 that controls the refrigerator air conditioner 40.

Further, in the first embodiment, among the plurality of refrigerating open showcases 10 arranged in the width direction, the outlet 23b of the refrigerator 20 of the refrigerating open showcase 10 located on the central portion side in the width direction has a distribution direction. Although the change plate 23d is provided, the flow direction change plate 23d may be provided at the outlet 23b of the refrigerator 20 in the third embodiment.

Moreover, in the said embodiment, although what showed the fan 22 for condensers in the position adjacent to the condenser 21 in the casing 23 was shown, it is not restricted to this. The condenser blower 22 may be arranged in the casing 23 near the outlet 23b. In this case, the condenser blower 22 sucks the air passing through the condenser 21 and the evaporation promoting member 24b of the drain water evaporation processing mechanism 24.

DESCRIPTION OF SYMBOLS 1... Store, 10... Refrigerating open showcase, 20... Refrigerator, 22... Condenser blower, 23a... Inflow port, 23b... Outflow port, 23c... Guide plate, 23d... Distribution direction change plate, 30... Main air conditioner, 40... Air conditioner for refrigerator, 42... Air outlet, 44... Duct, 50... Controller, 52... Store temperature sensor, 53... Refrigerator exhaust temperature sensor.

Claims (10)

An air conditioning system for a store in which a showcase with a built-in refrigerator is installed,
An air conditioner for a refrigerator, which supplies air for processing heat discharged from the refrigerator,
An air conditioning system comprising: a supply air temperature control unit that controls a temperature of air supplied from the air conditioner for a refrigerator. The supply air temperature control unit controls the temperature of the air supplied from the air conditioner for the refrigerator so that the temperature of the air heated by the heat discharged from the refrigerator and flowing into the store becomes a predetermined temperature. The air conditioning system according to claim 1, which is controlled. The air conditioning system according to claim 1, wherein the supply air temperature control unit controls the temperature of the air supplied from the air conditioner for the refrigerator to a predetermined temperature. The air conditioning system according to claim 2, wherein the predetermined temperature is a set temperature in a store. The refrigerator is provided above the showcase,
The side surface of the refrigerator is provided with an inflow port for introducing air for processing heat discharged from the refrigerator,
An outlet is provided on the upper surface of the refrigerator to let out air containing heat discharged from the refrigerator,
The air conditioning system according to any one of claims 1 to 4, wherein a blowout port that blows air supplied from the refrigerator air conditioner into the store toward an inflow port is provided on a ceiling surface in the store. The air conditioning system according to claim 5, further comprising a guide plate that is provided outside the inflow port so as to extend upward and that guides the air blown out from the air outlet to the inflow port. The refrigerator is provided above the showcase,
In the refrigerator, an inlet for introducing air for processing heat discharged from the refrigerator, and an outlet for discharging air heated by the heat discharged from the refrigerator upwards are provided. Is provided,
The air conditioning system according to claim 1, wherein a duct through which air supplied from the refrigerator air conditioner to the refrigerator flows is connected to the inlet. The distribution direction change plate for changing the distribution direction of the air flowing out from the outlet of the refrigerator located on the width direction central portion side in the three or more showcases arranged side by side to the width direction outer side. 7. The air conditioning system according to any one of 7. The refrigerator has a blower that allows air to flow in from the inlet and causes air to flow out from the outlet.
The temperature of the upper air across the width direction of the plurality of showcases is controlled by adjusting the amount of air blown by the blower in each of the refrigerators in the plurality of showcases arranged side by side. The air conditioning system described in Crab. The air conditioning system according to any one of claims 1 to 9, further comprising a main air conditioner corresponding to a heat load in the store excluding a heat load from the refrigerator.