KR100459360B1 - Air conditioning apparatus - Google Patents

Abstract

Comprehensive air-conditioning including temperature and humidity is smoothly performed in the shop where a cooling device or the like is installed and a shop that has a food processing room.

The air conditioning apparatus 1 passes the air of the store sucked by the blowing fan to the water adsorption area of the moisture adsorption element, and then returns it to the sales place through the cooling heat exchanger and the heat exchanger for heating, and the outside air sucked by the regeneration fan. The dehumidification air conditioner 6 to be discharged to the outside after being heated to pass through the water discharge area, the inside duct 12 which communicates with the dehumidification air conditioner and the sales place 2, and the dehumidification air conditioner and the work room 3. It is provided with the work room side duct 13 which communicates in series, and dampers 17A, 17B provided in the shop side duct and the work room side duct, respectively.

Description

Air Conditioning Equipment {AIR CONDITIONING APPARATUS}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner for a store having a work space for food processing and the like, in which a cooling machine such as an open show case is installed.

Conventionally, a plurality of refrigeration apparatuses such as open show cases are installed in stores (in sales places) of stores such as supermarkets, and are sold while cooling frozen foods or refrigerated foods in each refrigeration apparatus (open show cases, etc.). . In addition, there is a work room called a back room in a store, and processing of food preparation, adjustment, packaging, etc. is performed in this work room. And the air conditioner (air conditioner) is provided in these shops and the ceiling part of a work room, and the room temperature is adjusted.

On the other hand, recently, a method of controlling humidity of a room using a rotary dehumidifier has been developed. The rotary dehumidifier has a moisture adsorption element which is composed of a moisture adsorption area and a moisture discharge area at a predetermined position, and which is rotated at a predetermined speed so as to move from the moisture adsorption area to the water discharge area. The absorbed moisture in the room is absorbed by the heated outside air circulating in the water release area, and is discharged in the outside air to continuously dehumidify the room.

However, conventionally, such a dehumidifier is used only for humidity control in the shop, and since the dehumidification of the work room has not been carried out, it is usually cleaned and then quickly dried to promote the drying of cooking utensils and work benches of the work room that need to be kept clean. I could not.

SUMMARY OF THE INVENTION The present invention has been made to solve such a conventional technical problem, and an air conditioning apparatus capable of smoothing overall air conditioning including temperature and humidity in a store having a working room for a food processing or the like for installing a cooling device or the like. To provide.

1 is a block diagram of an air conditioning apparatus of the present invention.

2 is an internal configuration diagram of a dehumidification air conditioner constituting the air conditioning apparatus of the present invention.

3 is a timing chart illustrating damper control of a dehumidification air conditioner constituting the air conditioning apparatus of the present invention.

<Explanation of symbols for the main parts of the drawings>

1: air conditioning unit

2: sale place

3: Workroom (back room)

6: Dehumidification Air Conditioner

7: Heat exchanger for cooling and heating (cooling and heating means)

8: Supply air duct

9: return air duct

12: store inside duct

13: Workshop side duct

22A: Intake vent in shop

22B: Workshop suction

17A: Back room supply motor damper

17B: Place of Sale Supply Motor Damper (Damper)

18: Heating heat exchanger (heating means)

31: moisture absorption element

32: rotary dehumidifier

33: blower fan

34: Regeneration fan (outside air suction device)

36: regeneration heater

37: outside air collecting device

45: switch

46: controller

In the air conditioning apparatus of the present invention, in a store having a cooling machine or the like and a work room for food processing, a water adsorption area and a water discharge area are formed at positions, and the water discharge area is in the water adsorption area. A rotary dehumidifier having a moisture adsorption element rotated at a predetermined speed so as to transfer to the air, an air suction device, an external air suction device, an air cooling means and a heating means, and the air in the store sucked by the air suction device After passing through the water adsorption area of the water adsorption element, the water is returned to the store through the cooling means and heating means, and the outside air sucked by the outside air suction device is heated to pass through the water discharge area. Afterwards, the dehumidification air conditioning apparatus discharged to the outside, the in-side duct communicating with the dehumidification air conditioning apparatus and the inside of the store, the dehumidification air conditioning apparatus and the operation It is provided with the work room side duct which connects a thread | sequence, and the shop side damper and the work room side damper provided in the said shop side duct and the shop side duct, respectively.

According to the air conditioner of the present invention, in a store having a cooling machine or the like and a work room for food processing, the water adsorption area and the water discharge area are configured in place, and the water discharge area is discharged from the water adsorption area. A rotary dehumidifier having a moisture adsorption element rotated at a predetermined speed so as to move to an area, an air suction device, an outside air suction device, an air conditioner and a heating means, and in the store sucked by the air suction device. After passing air through the water adsorption zone of the water adsorption element, the air is returned to the store via the cooling means and the heating means, and the outside air sucked by the outside air suction device is heated to pass through the water discharge zone. And a dehumidification air conditioner to be discharged to the outside, an inner side duct communicating with the dehumidification air conditioner and the inside of the store, and the dehumidification air conditioner. The work chamber side duct, which is connected to the work room, and the in-store damper and the work chamber-side damper respectively provided in the in-store duct and the work-side duct, respectively, are continuously dehumidified in the moisture adsorption element of the rotary dehumidifier of the dehumidification air conditioner. The air in the store to be supplied is supplied into the shop through the in-store duct via the cooling means and the heating means, and is supplied into the work chamber through the work chamber-side duct.

This makes it possible to control the temperature and humidity of the air in the shop and the work room, and in addition to the overall air conditioning in the shop, promotes drying of the equipment by dehumidification in the work room, realizes sterilization and cleanliness. It can be maintained. In particular, in-store duct and work chamber-side duct are provided with in-store damper and work chamber-side damper, respectively. It is possible to switch to supply to the work room and to supply it to the work room after closing, thereby realizing efficient air conditioning in the shop and the work room.

The air conditioner of Claim 2 is characterized in that, in the above, the in-store damper and the work chamber side damper are respectively controlled by a control device including time limiting means.

According to the second aspect of the present invention, in addition to the above, the in-store damper and the work chamber-side damper are each controlled by a control device provided with a time limiting means, so that the opening time and closing time of the store are set in advance. It is possible to automatically switch the air from the dehumidification air conditioner into the shop and the work room.

The air conditioner of Claim 3 is equipped with the control apparatus which detects the ON-OFF of the lighting apparatus in a shop of Claim 1, The said control apparatus is provided with the said damper in-store when the said lighting apparatus is ON. It opens, closes the said room side damper, and when the said lighting apparatus is OFF, it is characterized by closing the said in-side damper and opening the said room side damper.

According to the invention of claim 3, further comprising a control device for detecting ON-OFF of the lighting device in the shop, in addition to claim 1, wherein the control device opens the in-store damper when the lighting device is 0N. When the lighting device is 0FF and the lighting device is 0FF, the damper is closed and the damper is opened. It is possible to supply air from the device into the shop and to supply it to the workroom during the closing shop that is turned off.

The air conditioner according to claim 4 is dehumidified by the rotary dehumidifier whenever the work chamber side damper is open in the above inventions.

According to the invention of claim 4, in addition to the above inventions, dehumidification is always performed by the rotary dehumidifier when the work chamber-side damper is open. Therefore, when air is supplied from the dehumidification air conditioner to the work chamber, the rotary dehumidifier is used. By dehumidification by the apparatus at all times, drying of a work room can be performed quickly and a sterilization effect can be improved.

The air conditioner according to claim 5 is, in the respective inventions, the dehumidification and air conditioning apparatus includes an outside air collecting device that collects outside air in the inside air suction device, and when the work chamber side damper is opened, the outside air collecting device. Characterized in that the minimum amount of outside air collection by the device.

According to the fifth aspect of the present invention, in addition to the above inventions, the dehumidification and air conditioning apparatus includes an outside air collecting device that collects outside air in the inside air suction device, and when the work chamber side damper is opened, the outside air collecting device. Since the outside air collection amount by the minimum amount is to be supplied, when supplying air from the dehumidification and air conditioning apparatus to the work room, it is possible to quickly dry the work room with the minimum ventilation amount and to improve the sterilization effect.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described in detail based on drawing. 1 is a configuration diagram of an air conditioner 1 of the present invention. The air conditioning apparatus 1 of the embodiment has a sales place (in-store) 2 and a work room 3 of a store, and a plurality of coolers such as open show cases are installed in the sale place 2, and in the work room 3 It is applied to a supermarket where food is cooked, processed, packaged, and the like, and is constructed of a dehumidifying air conditioner 6 as a dehumidifying air conditioning apparatus, a supply air duct 8, a return air duct 9, and the like.

The supply air duct 8 is piped to the store so as to communicate the air discharge section 11 of the dehumidifying air conditioner 6 with the sales place 2 and the work room 3, and work with the inside duct 12 on the way. It branches to the measurement duct 13. The in-store duct 12 is opened into the sales place 2 at the in-vehicle air outlets 22A ... formed in a plurality of places in the bottom and the ceiling in the vicinity of a cooling machine such as an open show case, whereby the dehumidifying air conditioner 6 ) And sales place (2) are connected in series. In addition, the work chamber side duct 13 is opened into the work chamber 3 at the work chamber suction ports 22B and 22B formed in the ceiling of the work chamber 3, whereby the dehumidification air conditioner 6 and the work chamber 3 are formed. ) Is connected to the ceiling.

The sales place supply motor damper 17B is attached in the inside duct 12, and the sales place supply motor damper 17B is closed so that the flow of air to the inside duct 12 can be prevented. Consists of. In addition, a back room supply motor damper 17A is attached to the work room side duct 13, and closing the back room supply motor damper 17A prevents the flow of air to the work room side duct 13. It is configured to be.

The return air duct 9 is piped to the store so as to connect the indoor air suction unit 21 of the dehumidifying air conditioner 6 with the ceiling of the sales place 2 and the work room 3 of the dehumidifying air conditioner 6, and branches branched along the way. The inner return duct 14 and the workroom side return duct 15 are provided. The in-store return duct 14 is opened into the sale place 2 at a plurality of in-store suction ports 16A, 16A formed in the ceiling of the sale place 2, and the work room side return duct 15 is the work room 3. A plurality of work chamber suction ports 16B, 16B formed in the ceiling portion of the work chamber 3 are opened into the work chamber 3.

Next, FIG. 2 shows an internal configuration diagram of the dehumidification air conditioner 6. The dehumidification air conditioner 6 is called a desiccant air conditioner, and includes a rotary dehumidifier 32 having a moisture adsorption element 31, a blowing fan 33 as an air suction device, and a regeneration fan as an external air suction device ( 34, a regeneration heater (electric heater) 36, a cooling heat exchanger 7 as a cooling means, a heating heat exchanger 18 as a heating means, and the like. The bet fan 33 is operated to suck air in the return air duct 9 from the bet sucker 21, and pass through the water adsorption zone, which will be described later, of the water adsorption element 31. 7) and the heat exchanger 18 for heating are discharged from the air discharge section 11 to the supply air duct 8.

37 is an outdoor air collecting device, and communicates with the suction side of the blowing fan 33 in series. By opening the outside air collector 37, the blower fan 33 collects the outside air and is configured to allow ventilation. 38 and 39 are return air temperature sensors and return air humidity sensors provided in the air intake unit 21, respectively, and detect the temperature and humidity of the air sucked into the return air duct 9, respectively.

On the other hand, the regeneration fan 34 is operated to suck the outside air from the regeneration air inlet portion 41, and sequentially passes through the regeneration air 36 and the water discharge region described later, followed by regeneration air discharge. The base 42 is discharged to the outside. 43 and 44 are an outside air temperature sensor and an outside air humidity sensor, respectively, which detect the temperature and humidity of the outside air. 46 is a control device of the dehumidification air conditioner 6 which is comprised of a microcomputer, and outputs the said return air temperature sensor 38, the return air humidity sensor 39, the outside air temperature sensor 43, the outside air humidity sensor 44, etc. On the basis of the control of the blower fan 33, the regeneration fan 34, the regeneration heater 36, the respective dampers 17A to 17D, the electric motors described later, and the cooling heat exchanger 7 and the heat exchanger for heating ( 18) the operation of a compressor (not shown) for supplying a coolant is controlled.

45 is a switch which interlocks with the switch of the in-store lighting in the sales place 2, and from the state of this switch 45, the control apparatus 46 can detect the ON-0FF state of the in-store lighting.

The cooling heat exchanger 7 and the heating heat exchanger 18 constitute a refrigerant circuit composed of the compressor, the condenser, the pressure reducing device, and the like. The high temperature refrigerant discharged from the compressor is supplied to the heating heat exchanger 18. The heating action is exerted, and the high temperature refrigerant discharged from the compressor is condensed in the condenser, decompressed by the decompression device, and then supplied to the cooling heat exchanger 7 and evaporated to exert the cooling action.

Here, the water adsorption element 31 exhibits a disc shape having a predetermined thickness and is driven to rotate about half a minute, for example, by the electric motor not shown. The moisture adsorption element 31 adsorbs the moisture contained in the air when air passes through it, and the adsorbed moisture is released to the heated air by the heated air exiting the moisture adsorption element 31. It has a function of giving and receiving water to absorb water.

An air passage provided around the water adsorption element 31 rotated by an electric motor is partitioned by an area boundary plate (not shown) to constitute the first air passage and the second air passage. The portion of the moisture adsorption element 31 positioned is referred to as the moisture absorption region, and the portion of the moisture adsorption element 31 positioned in the second air passage is referred to as the moisture release region.

Note that the part with the water adsorption element 31 is rotated by an electric motor, whereby the cycle is repeated from the water adsorption area to the water discharge area and back to the water adsorption area. In addition, the outside air (regenerated air) sucked from the regenerated air inlet portion 41 by the regeneration fan 34 is heated by the regenerated heater 36, and then the water discharge area of the moisture adsorption element 31 is transferred to the second air passage. After exiting, it is configured to be discharged to the outside through the regeneration air exhaust section 42.

With the above structure, the operation | movement of the air conditioning apparatus 1 of this invention is demonstrated next. The control device 46 of the dehumidification air conditioner 6 drives the blowing fan 33, the regeneration fan 34, and the moisture adsorption element 31. Then, the regeneration heater 36 is heated, and the compressor is operated. In addition, the control device 46 is provided with a timer (time limit means) as its own function, and in addition, the opening time (for example, AM10) and closing time (for example, PM9) of the store are set. do.

Now, when the time is AM10 and the store is opened, the control device 46 closes the back room supply motor damper 17A and the back room return motor damper 17C, and the sales place supply motor damper 17B and the sale. Open the return motor damper (17D). In this state, the air in the ceiling of the sales place 2 enters the in-store return duct 14 of the return air duct 9 from the in-suction inlets 16A and 16A by the operation of the blower fan 33, and the intake suction unit It is sucked into the dehumidification air conditioner 6 from 21. The sucked air passes through the water absorption area of the blower fan 33, the first air passage, and the moisture adsorption element 31, and then passes through the cooling heat exchanger 7 and the heat exchanger 18 for heating. 11) is discharged into the supply air duct (8).

At this time, the moisture contained in the air is adsorbed by the moisture adsorption element 31 in the portion which becomes the moisture adsorption region, and is transported to the moisture release region by rotation by an electric motor. In addition, the dry air discharged in the supply air duct 8 after being dehumidified, cold or heated, is sucked out of the ceiling part or the bottom part of the sales place 2 from the intake outlet 22A ... through the in-store duct 12. (Return)

On the other hand, the outside air (regenerated air) sucked into the regenerated air introduction unit 41 by the operation of the regeneration fan 34 is heated to about + 140 ° C. by the regenerated heater 36, and then, the moisture adsorption element 31 is again provided. The water is discharged out of the water discharge region and discharged to the regeneration air exhaust section 42 via the regeneration fan 34. At this time, the outside air receives the moisture adsorbed to the moisture adsorption element 31 in the moisture adsorption region 31 in the moisture release region of the moisture adsorption element 31 and then is discharged to the outside.

In other words, the moisture adsorbed to the moisture adsorption element 31 in the moisture adsorption region is conveyed to the moisture release region by the rotation of the moisture adsorption element 31, whereby the outside air heated by the regeneration heater 36 is heated. It is absorbed and finally discharged to the outside. As a result, the air drawn out in the sales place 2 is dehumidified as described above via the supply air duct 8, so that the sales place 2 is dehumidified, and the humidity is reduced or the humidity rise is suppressed. In this case, the controller 46 controls the motors of the fans 33 and 34, the regenerative heater 36, and the moisture adsorption element 31 based on the outputs of the sensors 38, 39, 43 and 44. Although the inside of the sales place 2 is kept at the set humidity, more specifically, the control device 46 is based on the output of the return air humidity sensor 39, so that the humidity in the sales place 2 is higher than the setting. If it is high, it energizes the regeneration heater 36, and when it is low, electricity supply is stopped. In addition, the outside air collecting device 37 is opened and ventilated at a time when the number of customers increases, and the control is closed when the outside air temperature is high or vice versa.

In addition, the moisture adsorption element 31 rises in temperature due to the heating of the outside air and the heat of condensation of water, whereby the temperature of the air passing through the moisture adsorption region is raised to about + 40 ° C. This moisture adsorption and release action is to be achieved continuously by the rotation of the moisture adsorption element (31). In addition, the moisture in the air in the sales place 2 received by the blower fan 33 is received in the water adsorption area of the moisture adsorption element 31, and the outside air circulated to the regeneration fan 34 is humidified in the water discharge area. And dehumidify the room as a result, it is not necessary to dispose the condensed water like a dehumidifier using a conventional compressor.

On the other hand, the control device 46 controls the compressor so as to be a set temperature (for example, + 18 ° C to + 28 ° C) based on the output of the return air temperature sensor 38, thereby cooling the heat exchanger 7 The cooling operation in the heating and the heating operation in the heat exchanger 18 for heating are controlled. As a result, the air after dehumidification to be sucked into the intake vent 22A… is temperature-controlled by the cooling heat exchanger 7 and the heat exchanger 18 for heating, so that the inside of the sales place 2 includes temperature and humidity. Regular coordination will take place.

Then, when the time is PM9 and the store is closed, the controller 46 closes the sales place supply motor damper 17B and the sales place return motor damper 17D as shown in the timing chart of FIG. The room supply motor damper 17A and the back room return motor damper 17C are opened. As a result, the air in the ceiling of the work chamber 3 enters the work chamber side return duct 15 of the return air duct 9 through the work chamber suction ports 16B and 16B by the operation of the blower fan 33. 21) is sucked into the dehumidification air conditioner (6). Then, as described above, the air after dehumidification and temperature control is sucked out (return) from the supply air duct 8 to the ceiling of the work room 3 through the work room side duct 13 to the work room air outlets 22B and 22B. Will be.

As a result, the drying in the work chamber 3 after closing and sterilization of work equipment and the like are promoted. In particular, in this case, the controller 46 continuously (always) heats up the regenerative heater 36 and rotates the moisture adsorption element 31 irrespective of the output of the return air humidity sensor 39. The outside air collection amount by the outside air collection device 37 is made into the minimum amount, thereby improving the dehumidification capacity in the work chamber 3 to promote drying.

In the above embodiment, the dampers 17A to 17D are switched between the opening time and the closing time by the timer. However, the dampers 17A to 17D are not limited thereto, and the respective dampers are based on the 0N-OFF of the in-spot light detected by the switch 45. You may switch (17A-17D). In other words, during the opening of which the store lighting is 0N, the sales place supply motor damper 17B and the sales place return motor damper 17D are opened, and the back room supply motor damper 17A and the back room return motor damper 17C are closed. At the same time, the sales place supply motor damper 17B and sales place return motor damper 17D are closed and the back room supply motor damper 17A and the back room return motor damper 17C are opened during the closing shop in which the interior lighting is turned off. As a result, as described above, air conditioning of the sales place 2 is performed during opening, and air conditioning of the work room 3 can be performed during closing.

In addition, although each damper 17A-17D was controlled by the control apparatus 46 of the dehumidification air conditioner 6 in the Example, it is not limited to this, You may open and close arbitrarily by manual. In addition, although the regenerative heater 36 was comprised by the electric heater in the Example, you may use the hot water type | mold heater which flows a combustion burner and hot water, without being limited to it.

As described above, according to the air conditioner of the present invention, in a store having a cooling machine or the like and a work room for food processing, the water adsorption area and the water discharge area are configured in place, and the water A dehumidifying device having a rotary dehumidifying device which rotates at a predetermined speed so as to move from the adsorption area to the water discharge area, an air suction device, an outside air suction device, an air cooling device and a heating means, After passing the air in the store which has been sucked through the water adsorption area of the water adsorption element, the air is returned to the store via the cooling means and the heating means, and the outside air sucked by the outside air suction device is heated to A dehumidification air conditioner which passes through the water discharge region and is discharged to the outside, an in-store duct communicating with the dehumidification air conditioner and the inside of the shop, It is equipped with a room side duct which communicates with a dehumidification air conditioning apparatus and the said work room, the in-side damper and the work room side damper which are respectively provided in the said in-side duct and the work-side duct, and the moisture adsorption element of the rotary dehumidification apparatus of a dehumidification air conditioning apparatus. The air in the store continuously dehumidified in the shop is supplied into the shop through the in-store duct via the cooling unit and the heating unit, and is supplied into the shop through the work chamber-side duct.

This makes it possible to control the temperature and humidity of the air in the shop and the work room.In addition to the overall air conditioning in the shop, it promotes drying of the equipment by dehumidification in the shop, realizes sterilization and cleanliness. It can be maintained. In particular, the in-store duct and the work-room side duct are provided with the in-store damper and the work chamber-side damper, respectively. Therefore, by opening and closing the respective dampers, for example, during the opening of the store, dehumidification from the dehumidification air conditioner and air after temperature control are performed. It becomes possible to supply in a shop and to switch to supply to a work room after closing, and it becomes possible to implement | achieve efficient air conditioning in a shop and a work room.

According to the second aspect of the present invention, in addition to the above, the in-store damper and the work chamber-side damper are controlled by a control device provided with time limiters, respectively, so that the opening time and closing time of the store are set in advance. It is possible to automatically switch the air from the dehumidification and air conditioning apparatus in the shop and the work room.

According to the invention of claim 3, further comprising: a control device for detecting ON-0FF of the in-store lighting device, wherein the control device opens the in-store damper when the lighting device is ON. When the lighting device is 0FF and the lighting device is 0FF, the interior damper is closed and the working room damper is opened. Therefore, dehumidification and air conditioning is performed during the opening of the store in which the lighting device in the shop is turned on. It is possible to supply air from the device into the shop and to supply it to the workroom during the closing shop that is turned off.

According to the invention of claim 4, in addition to the above inventions, the dehumidification is always performed by the rotary dehumidifier when the work chamber side damper is opened. By dehumidification by the apparatus at all times, drying of a work room can be performed quickly and a sterilization effect can be improved.

According to claim 5, in addition to the above inventions, the dehumidification and air conditioning apparatus includes an outside air collecting device that collects outside air in the inside air suction device, and when the work chamber side damper is open, the outside air collecting device. Since the outside air collection amount by the minimum amount is to be supplied, when supplying air to the work room by the dehumidification air conditioning apparatus, it is possible to quickly dry the work room with the minimum ventilation amount and to improve the sterilization effect.

Claims (5)

In the air-conditioning apparatus used in the store which has a cooling machine etc. and a shop which performs food processing etc., A rotary dehumidifier, an air suction device, and an outdoor air suction device having a moisture adsorption area and a water discharge area in place and provided with a moisture adsorption element that is rotated at a predetermined speed so as to move from the water adsorption area to the water discharge area. And, air-conditioning means and heating means, passing air in the store sucked by the air-absorption device through the water adsorption area of the water adsorption element, and then returning to the store via the cooling means and heating means. And a dehumidification and air conditioning apparatus for heating the outside air sucked by the outside air suction device and passing it through the water discharge area, and then discharging the outside air to the outside; An in-store duct communicating with the dehumidification air conditioning unit and the in-store; A work room side duct communicating with the dehumidification air conditioning device and the work room in series; An in-store damper and a work chamber side damper respectively provided in the in-store duct and the work chamber side duct. The air conditioning apparatus according to claim 1, wherein the in-store damper and the work chamber side damper are respectively controlled by a control device having time limiting means. The control apparatus according to claim 1, further comprising a control device for detecting "on-off" of the lighting device in the shop, wherein the control device opens the in-store damper when the lighting device is "on", And the work chamber side damper is closed and the work chamber side damper is opened when the lighting device is " off ". The air conditioning apparatus according to any one of claims 1 to 3, wherein the dehumidifier is always dehumidified by the rotary dehumidifier when the work chamber side damper is opened. The dehumidification and air conditioning apparatus according to any one of claims 1 to 3, wherein the dehumidification and air conditioning apparatus includes an outside air collecting device that collects outside air in the inside air suction device, and when the work chamber side damper is open, the outside air collecting device is used. An air conditioning apparatus characterized by the minimum amount of outside air collection by the apparatus.