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WO2018131085A1 - Entrepôt réfrigéré - Google Patents

Entrepôt réfrigéré Download PDF

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Publication number
WO2018131085A1
WO2018131085A1 PCT/JP2017/000593 JP2017000593W WO2018131085A1 WO 2018131085 A1 WO2018131085 A1 WO 2018131085A1 JP 2017000593 W JP2017000593 W JP 2017000593W WO 2018131085 A1 WO2018131085 A1 WO 2018131085A1
Authority
WO
WIPO (PCT)
Prior art keywords
refrigerant
warehouse
detection unit
leak detection
low
Prior art date
Application number
PCT/JP2017/000593
Other languages
English (en)
Japanese (ja)
Inventor
雄明 岡部
Original Assignee
三菱電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to PCT/JP2017/000593 priority Critical patent/WO2018131085A1/fr
Priority to JP2018561129A priority patent/JP6689413B2/ja
Priority to EP17891439.6A priority patent/EP3569955B1/fr
Publication of WO2018131085A1 publication Critical patent/WO2018131085A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • F25B41/24—Arrangement of shut-off valves for disconnecting a part of the refrigerant cycle, e.g. an outdoor part
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/32—Responding to malfunctions or emergencies
    • F24F11/36—Responding to malfunctions or emergencies to leakage of heat-exchange fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/005—Arrangement or mounting of control or safety devices of safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F25D29/008—Alarm devices

Definitions

  • the present invention relates to a cooling warehouse that discharges the refrigerant leaked into the warehouse to the outside.
  • a prefabricated refrigerator or a prefabricated freezer is known as a cooling warehouse, and a person or a forklift can enter and exit the cooling warehouse.
  • an indoor unit called a unit cooler constituting a refrigeration cycle apparatus using a refrigerant is arranged inside the cooling warehouse, and the inside of the cooling warehouse is cooled by the indoor unit. .
  • the casing of the cooling warehouse is composed of a heat insulating panel and the joint of the heat insulating panel is sealed, the airtightness of the cooling warehouse is extremely high.
  • coolant is higher than air, when a refrigerant
  • a fan and a refrigerant sensor provided in the indoor unit are provided, and when the refrigerant leaked is detected by the refrigerant sensor, the fan is driven to rotate and the interior of the indoor unit is
  • a cooling device that discharges refrigerant to the outside from an air supply / exhaust port communicating with the outside (see, for example, Patent Document 1).
  • the present invention has been made to solve the above-described problems, and an object thereof is to provide a cooling warehouse capable of determining the degree of refrigerant leakage.
  • the cooling warehouse according to the present invention includes a warehouse body in which an introduction port for introducing outside air and a discharge port for discharging inside air are formed, and air outside the warehouse is introduced into the warehouse, and the air inside the warehouse is stored in the warehouse.
  • a blower to be discharged to the outside a plurality of leak detection units that are provided at different height positions in the cabinet, detect refrigerant, whether or not refrigerant is detected in each of the leak detection units, and detection of refrigerant in each of the leak detection units And a control device that controls the blower according to time.
  • a plurality of leak detection units that are provided at different height positions in the store and detect refrigerant, whether or not each leak detection unit detects refrigerant, and each of the leak detection units And a control device that controls the blower according to the detection time of the refrigerant, so that the degree of refrigerant leakage can be determined.
  • FIG. 1 is a circuit diagram showing a refrigeration cycle apparatus according to an embodiment of the present invention. It is a functional block diagram of the cooling warehouse which concerns on embodiment of this invention. It is a flowchart which shows the flow of the control processing of the control apparatus of the cooling warehouse which concerns on embodiment of this invention. It is a figure explaining the flow of the air at the time of the refrigerant
  • FIG. 1 is a cross-sectional view showing a cooling warehouse 100 according to an embodiment of the present invention.
  • the cooling warehouse 100 includes a warehouse body 1, an introduction lid 32a, an introduction fan 32b, a discharge lid 31a, a discharge fan 31b, an outdoor unit 21, and The indoor unit 22, a low-level leak detection unit 41 a, a high-level leak detection unit 41 b, and a control device 50 are provided.
  • the refrigeration cycle apparatus 10 is provided in the cooling warehouse 100.
  • the warehouse body 1 is, for example, a box-shaped housing that constitutes the outer shell of the cooling warehouse 100, and the floor surface 1a, the wall surface 1b, and the ceiling surface 1c are each constituted by a heat insulating panel 1f.
  • the warehouse body 1 has an introduction port 32 and a discharge port 31. Furthermore, an entrance (not shown) through which the person 2 or the luggage 3 enters and exits is formed, and a door 1e is provided at the entrance.
  • the cooling warehouse 100 is, for example, a prefabricated refrigerator, and the joints of the heat insulating panels 1 f are sealed around the warehouse body 1.
  • the inside of the warehouse body 1 is referred to as the inside of the warehouse
  • the outside of the warehouse body 1 is referred to as the outside of the warehouse.
  • the introduction port 32 is an opening for introducing outside air into the warehouse, and is formed on the right wall surface 1b when viewed from the front, for example.
  • the introduction port 32 is formed between, for example, a position that is 2/3 of the height of the warehouse body 1 and the ceiling surface 1c, that is, a position that is 2/3 or more of the height of the warehouse body 1.
  • the introduction port 32 may be formed in the ceiling surface 1 c of the warehouse body 1.
  • the discharge port 31 is an opening for discharging the internal air to the outside, and is formed, for example, in the left wall surface 1b when viewed from the front.
  • the discharge port 31 is formed, for example, between the floor surface 1a and a position that is 1/3 of the height of the warehouse body 1, that is, a position that is 1/3 or less of the height of the warehouse body 1.
  • the introduction port 32 may be formed in the floor surface 1a of the warehouse body 1.
  • the introduction lid 32 a is provided at the introduction port 32 and opens and closes the introduction port 32.
  • the inlet blower 32b is provided in the chamber and in the vicinity of the inlet 32 and the inlet lid 32a. When the inlet lid 32a is open, air outside the chamber is introduced, and when the inlet lid 32a is closed, the air in the chamber is introduced. Is agitated.
  • the discharge lid 31 a is provided at the discharge port 31 and opens and closes the discharge port 31.
  • the outlet blower 31b is provided in the warehouse and in the vicinity of the outlet 31 and the discharge lid 31a. When the discharge lid 31a is open, the air in the warehouse is discharged, and when the discharge lid 31a is closed, the room air is discharged. Is agitated.
  • the inlet blower 32b and the outlet blower 31b may be provided outside the warehouse instead of inside the warehouse.
  • outlet blower 31b and the inlet blower 32b each have the capability of generating an air volume that is equal to or greater than the ventilation volume multiplied by the ventilation frequency obtained by Equation 1.
  • each of the outlet blower 31b and the inlet blower 32b has a performance of generating a wind speed of 1.8 m / second or more.
  • the outdoor unit 21 is installed outside the warehouse, and for example, a compressor 11 and an outdoor heat exchanger 12 described later are installed inside the outdoor unit 21.
  • the indoor unit 22 is installed in the warehouse, and an expansion unit 13 and an indoor heat exchanger 14, which will be described later, for example, are installed inside the indoor unit 22.
  • the indoor unit 22 is installed suspended from the ceiling surface 1c as shown in FIG.
  • the indoor unit 22 may be installed on the floor or on the wall instead of being suspended from the ceiling.
  • the number of installed units may be one or three or more.
  • the low-level leak detection unit 41a and the high-level leak detection unit 41b are provided at different height positions in the warehouse, and detect refrigerant leaked into the warehouse.
  • the low leak detector 41a is provided in a space between the floor surface 1a and a position 20 cm above the floor surface 1a, for example, in the warehouse.
  • the width or depth of the warehouse body 1 is 8 m or more, one or more low-order leak detection units 41a are provided within a horizontal distance of 8 m from the end of the indoor unit 22 of the refrigeration cycle apparatus 10.
  • the low-level leak detection unit 41a is provided in a space between the floor surface 1a and a position of 5 cm above the floor surface 1a, for example, in the warehouse. It has been.
  • the high level leak detection part 41b is provided in the space between the floor surface 1a and the position which becomes 1/3 of the height of the warehouse main body 1, for example in the warehouse.
  • the leaked refrigerant stays in the vicinity of the floor surface 1a in the warehouse, and stays above the floor surface 1a as the amount of leaked refrigerant increases. Therefore, as the leaked refrigerant flow rate increases, the time from when the low leak detection unit 41a detects the refrigerant to when the high leak detection unit 41b detects the refrigerant is shortened.
  • the presence or absence of refrigerant detection in the low leak detection unit 41a and the high leak detection unit 41b, and the refrigerant detection time of the low leak detection unit 41a and the high leak detection unit 41b can be determined according to the time from when the refrigerant leaked by the low leak detector 41a is detected until the refrigerant leaked by the high leak detector 41b is detected.
  • coolant here is the length of the time which has detected the refrigerant
  • the low leak detection unit 41a and the high leak detection unit 41b detect the refrigerant leaked in a short time or simultaneously.
  • the specific gravity of the refrigerant is higher than the specific gravity of the air.
  • the high-level leak detection unit 41b is It is provided in a space between the ceiling surface 1c and a position of 5 cm below the ceiling surface 1c.
  • the lower leak detection unit 41a has a space between the position that is 2/3 of the height of the warehouse body 1 and the ceiling surface 1c, that is, the warehouse body 1 It is provided in a space that is 2/3 or more of the height.
  • the control device 50 is, for example, a dedicated hardware or a CPU (Central processing unit, central processing device, processing device, arithmetic device, microprocessor, which executes a program stored in the storage unit 52 (see FIG. 3 described later). (Also called a microcomputer or a processor). Further, the control device 50 controls the outlet blower 31b, the inlet blower 32b, and the like according to the detection results of the low leak detection unit 41a and the high leak detection unit 41b.
  • CPU Central processing unit, central processing device, processing device, arithmetic device, microprocessor, which executes a program stored in the storage unit 52 (see FIG. 3 described later).
  • FIG. 2 is a circuit diagram showing the refrigeration cycle apparatus 10 according to the embodiment of the present invention.
  • the refrigeration cycle apparatus 10 includes, for example, a compressor 11, an outdoor heat exchanger 12, an expansion unit 13, and an indoor heat exchanger 14 connected by a pipe 24, and refrigerant is It has a circulating refrigerant circuit.
  • the refrigeration cycle apparatus 10 includes an outdoor unit 21 and an indoor unit 22, and the outdoor unit 21 and the indoor unit 22 are connected by a pipe 24.
  • the piping 24 includes an outside piping 24 a located outside the warehouse from the outdoor unit 21 to the warehouse body 1, and an inside piping 24 b located inside the warehouse from the warehouse body 1 to the indoor unit 22. It consists of As shown in FIG. 2, each of the external piping 24 a and the internal piping 24 b includes a high-pressure piping 24 c from the outdoor unit 21 to the indoor unit 22 and a low-pressure piping 24 d that returns from the indoor unit 22 to the outdoor unit 21. Yes.
  • the high-pressure pipe 24c is provided with a high-pressure pipe cutoff valve 25a
  • the low-pressure pipe 24d is provided with a low-pressure pipe cutoff valve 25b.
  • high-pressure pipe shut-off valve 25a and the low-pressure pipe shut-off valve 25b that are opened and closed at an arbitrary timing by the control device 50 may be replaced with electromagnetic valves that open only when energized and close when not energized.
  • Compressor 11 compresses the refrigerant.
  • the outdoor heat exchanger 12 exchanges heat between the outside air and the refrigerant to condense the refrigerant.
  • the expansion part 13 expands and depressurizes the refrigerant.
  • the indoor heat exchanger 14 evaporates the refrigerant by exchanging heat between the indoor air and the refrigerant.
  • the refrigerant used in the refrigeration cycle apparatus 10 is, for example, a slightly flammable refrigerant.
  • the refrigerant is sucked into the compressor 11 of the outdoor unit 21, compressed by the compressor 11, and discharged in the state of high-temperature and high-pressure gas.
  • the discharged refrigerant flows into the outdoor heat exchanger 12.
  • the refrigerant that has flowed into the outdoor heat exchanger 12 is condensed by exchanging heat with outdoor air.
  • the condensed refrigerant flows into the expansion unit 13 of each indoor unit 22 and is expanded and depressurized by the expansion unit 13.
  • the expanded and depressurized refrigerant flows into the indoor heat exchanger 14.
  • the refrigerant that has flowed into the indoor heat exchanger 14 is heat-exchanged with the indoor air and evaporated. At that time, the internal air is cooled to cool the interior. Thereafter, the evaporated refrigerant is sucked into the compressor 11.
  • the flow path switching device may be provided in the refrigeration cycle apparatus 10, and it becomes possible to perform the heating operation by switching the flow path switching device by providing the flow path switching device.
  • FIG. 3 is a functional block diagram of the cooling warehouse 100 according to the embodiment of the present invention.
  • the control device 50 includes a measurement unit 51, a storage unit 52, a determination unit 53, and a drive unit 54.
  • the control device 50 is configured to receive signals from the low leak detection unit 41a and the high leak detection unit 41b. Further, a signal is output to the compressor 11, the high-pressure pipe shutoff valve 25a, the low-pressure pipe shutoff valve 25b, the discharge lid 31a, the discharge port blower 31b, the introduction lid 32a, the introduction port blower 32b, and the notification means 43.
  • the notification means 43 is, for example, an audio output means such as a speaker, a display means such as an LED, a contact with a remote centralized control panel or control device, or all of them.
  • the measurement unit 51 acquires signals detected by the low-level leakage detection unit 41a and the high-level leakage detection unit 41b.
  • the storage unit 52 stores various information.
  • the determination unit 53 performs various determinations based on the signal acquired by the measurement unit 51 and information stored in the storage unit 52. For example, the reference value is stored in the storage unit 52, and the determination unit 53 is more than the reference value stored in the storage unit 52 when the value of the signal acquired by the measurement unit 51 from the lower leakage detection unit 41a is greater than the reference value.
  • the lower leakage detection unit 41a determines that the refrigerant has been detected.
  • the drive unit 54 includes the compressor 11, the high-pressure pipe cutoff valve 25a, the low-pressure pipe cutoff valve 25b, the discharge lid 31a, the discharge port blower 31b, the introduction lid 32a, the introduction port blower 32b, and A drive signal is output to the notification means 43 to drive them.
  • FIG. 4 is a flowchart showing the flow of control processing of the control device 50 of the cooling warehouse 100 according to the embodiment of the present invention.
  • the control device 50 according to the present embodiment includes the presence / absence of refrigerant detection in the low-level leak detection unit 41a and the high-level leak detection unit 41b, the detection time of the refrigerant in the low-level leak detection unit 41a and the high-level leak detection unit 41b, or the low level
  • the degree of refrigerant leakage is determined according to the time from detection of the refrigerant leaked by the leak detection unit 41a to the detection of the refrigerant leaked by the high-level leak detection unit 41b, and retention of the refrigerant leaked depending on the degree of refrigerant leakage
  • the control which suppresses is performed.
  • the relationship between the first time, the second time, and the third time is second time ⁇ first time ⁇ third time, and is stored in the storage unit 52, respectively.
  • the first time, the second time, and the third time are predetermined lengths of time.
  • the first time, the second time, and the third time are determined by the refrigerant type of the refrigeration cycle apparatus 10 and the internal volume of the cooling warehouse 100.
  • the first time, the second time, and the third time are short for a strong flammable refrigerant and short for a low flammable refrigerant. Can be set longer.
  • the determination unit 53 of the control device 50 determines whether the low-level leakage detection unit 41a has detected the refrigerant based on the signal input from the low-level leakage detection unit 41a to the measurement unit 51 (step) S1).
  • Step S8 the normal cooling operation is continued.
  • the drive unit 54 of the control device 50 operates the notification unit 43 to externally
  • the administrator is informed that a refrigerant leak has occurred in the warehouse, and the inlet fan 32b and the outlet fan 31b are driven to stir the refrigerant that has leaked into the warehouse, and the compressor 11 is continuously driven.
  • the operation of the cycle device 10 is continued (step S2), that is, the cooling operation is continued and the process proceeds to step S3.
  • step S3 the determination unit 53 of the control device 50 determines that the low-level leak detection unit 41a and the high-level leak detection unit 41b are refrigerants based on the signals input to the measurement unit 51 from the low-level leak detection unit 41a and the high-level leak detection unit 41b. Whether or not is detected.
  • the drive unit 54 of the control device 50 operates the notification means 43 to notify an external administrator, and the external administrator is allowed to move the contents in the warehouse and repair the leakage point of the refrigerant. Prompt (step S7).
  • step S3 when the determination unit 53 of the control device 50 determines that the low-level leakage detection unit 41a has detected the refrigerant for the first time or more, or determines that the high-level leakage detection unit 41b has detected the refrigerant (Yes in step S3).
  • the drive unit 54 of the control device 50 closes the high-pressure pipe shutoff valve 25a and the low-pressure pipe shutoff valve 25b, stops driving the compressor 11, and stops the operation of the refrigeration cycle apparatus 10, that is, stops the cooling operation. Furthermore, after notifying the outside manager to the outside manager by operating the notification means 43 (step S4), the process proceeds to step S5.
  • step S5 the determination unit 53 of the control device 50 determines that the low-level leak detection unit 41a and the high-level leak detection unit 41b are refrigerants based on the signals input to the measurement unit 51 from the low-level leak detection unit 41a and the high-level leak detection unit 41b. Whether or not is detected.
  • the determination unit 53 of the control device 50 determines that the high-level leak detection unit 41b has not detected the refrigerant within the second time after the low-level leak detection unit 41a detects the refrigerant, and the low-level leak detection unit 41a When it is determined that the third time or more has not elapsed since the refrigerant was detected (No in step S5), the drive unit 54 of the control device 50 operates the notification means 43 to the external manager. Notification is made so as to encourage the movement of the contents and the repair of the leakage point of the refrigerant (step S7).
  • the determination unit 53 of the control device 50 determines that the high-level leak detection unit 41b has detected the refrigerant within the second time after the low-level leak detection unit 41a detects the refrigerant, or the low-level leak detection unit 41a detects the refrigerant.
  • the drive unit 54 of the control device 50 operates the notification means 43 to increase the temperature inside the cabinet to the external manager.
  • the discharge lid 31a and the introduction lid 32a are opened, and the discharge port 31 and the introduction port 32 are opened (step S6).
  • the refrigerant staying in the warehouse before reaching the combustion concentration is agitated. Can be suppressed.
  • the outside manager can carry out repair of the leaked portion of the refrigerant after moving the contents in the warehouse by notifying the notification means 43, and minimize damage to the contents in the warehouse. Can be suppressed.
  • the control device 50 includes the low-level leak detection unit 41a and the high-level leak detection unit 41b that are a plurality of leak detection units provided within an appropriate range from the refrigerant leak location.
  • the degree of refrigerant leakage can be determined according to the time until detection, that is, the refrigerant detection timing.
  • control device 50 drives the inlet fan 32b and the outlet fan 31b when the low leak detector 41a detects a refrigerant.
  • the degree of refrigerant leakage is low, the refrigerant that has leaked into the cabinet is agitated while continuing the cooling operation, so that stagnation of the refrigerant in the cabinet is suppressed and damage to the items that require cooling is suppressed. can do.
  • control device 50 closes the high pressure pipe shutoff valve 25a and the low pressure pipe shutoff valve 25b when the low leak detection unit 41a detects the refrigerant for the first time or more, or when the high leak detection unit 41b detects the refrigerant. .
  • the degree of refrigerant leakage is medium, the cooling operation is stopped to prevent refrigerant leakage, and the outside administrator can move the contents in the cabinet and repair the refrigerant leakage point. Can be urged.
  • control device 50 detects when the high-level leak detection unit 41b detects the refrigerant within the second time after the low-level leak detection unit 41a detects the refrigerant, or after the low-level leak detection unit 41a detects the refrigerant.
  • the discharge lid 31a and the introduction lid 32a are opened. In other words, when the degree of refrigerant leakage is high, the refrigerant leaking into the warehouse is discharged out of the warehouse, so that the retention of the refrigerant in the warehouse can be more reliably suppressed.
  • the high-pressure pipe shut-off valve 25a and the low-pressure pipe shut-off valve 25b can be replaced with electromagnetic valves that are opened only when energized, so that refrigerant leakage into the cabinet can be shut off reliably even in the event of an emergency such as a power failure. The occurrence of fire can be suppressed.
  • the discharge port 31 is formed between the floor surface 1a and a position that is 1/3 of the height of the warehouse body 1, that is, a position that is 1/3 or less of the height of the warehouse body 1.
  • the introduction port 32 is formed between a position that is 2/3 of the height of the warehouse body 1 and the ceiling surface 1c, that is, a position that is 2/3 or more of the height of the warehouse body 1.
  • FIG. 5 is a diagram for explaining the air flow when the refrigerant leaks in the cooling warehouse 100 according to the embodiment of the present invention. Since the discharge port 31 and the introduction port 32 are formed at the above-described positions, the outside air introduced into the warehouse from the introduction port 32 through the introduction path 71 as shown in FIG. Then, together with the refrigerant 6 having a higher specific gravity than the air staying in the vicinity of the floor surface 1a, the refrigerant is discharged from the discharge port 31 to the outside through the discharge path 72. Therefore, the refrigerant 6 having a specific gravity higher than that of air can be effectively discharged outside the warehouse. That is, the refrigerant 6 having a specific gravity higher than that of air can be easily and quickly discharged outside the warehouse. Furthermore, ventilation can be completed in a short time by setting the air volume of the outlet blower 31b and the inlet blower 32b to the air volume obtained by the above formula 1.
  • 1 warehouse body 1a floor surface, 1b wall surface, 1c ceiling surface, 1e door, 1f heat insulation panel, 2 persons, 3 luggage, 6 refrigerant with higher specific gravity than 10 air, 10 refrigeration cycle equipment, 11 compressor, 12 outdoor heat exchanger , 13 expansion section, 14 indoor heat exchanger, 21 outdoor unit, 22 indoor unit, 24 piping, 24a external piping, 24b internal piping, 24c high pressure piping, 24d low pressure piping, 25a high pressure piping cutoff valve, 25b low pressure piping cutoff Valve, 31 outlet, 31a outlet lid, 31b outlet fan, 32 inlet, 32a inlet lid, 32b inlet fan, 41a low leak detector, 41b high leak detector, 43 notification means, 50 control device, 51 measurement Section, 52 storage section, 53 determination section, 54 drive section, 71 introduction path, 72 discharge path, 100 cooling warehouse .

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Air Conditioning Control Device (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

L'invention concerne un entrepôt réfrigéré comprenant: un bâti d'entrepôt dans lequel une entrée qui introduit de l'air depuis l'extérieur et une sortie qui évacue l'air de l'intérieur sont formées; un ventilateur qui introduit de l'air de l'extérieur dans l'entrepôt et évacue l'air de l'intérieur de l'entrepôt vers l'extérieur; une pluralité de détecteurs de fuite qui sont disposés à différentes positions de hauteur dans l'entrepôt et qui détectent un fluide frigorigène; et un dispositif de commande qui commande le ventilateur en fonction de la présence ou de l'absence d'une fuite détectée par les détecteurs de fuite et du temps pour que les détecteurs de fuite détectent le fluide frigorigène.
PCT/JP2017/000593 2017-01-11 2017-01-11 Entrepôt réfrigéré WO2018131085A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PCT/JP2017/000593 WO2018131085A1 (fr) 2017-01-11 2017-01-11 Entrepôt réfrigéré
JP2018561129A JP6689413B2 (ja) 2017-01-11 2017-01-11 冷却倉庫
EP17891439.6A EP3569955B1 (fr) 2017-01-11 2017-01-11 Entrepôt réfrigéré

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2017/000593 WO2018131085A1 (fr) 2017-01-11 2017-01-11 Entrepôt réfrigéré

Publications (1)

Publication Number Publication Date
WO2018131085A1 true WO2018131085A1 (fr) 2018-07-19

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PCT/JP2017/000593 WO2018131085A1 (fr) 2017-01-11 2017-01-11 Entrepôt réfrigéré

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EP (1) EP3569955B1 (fr)
JP (1) JP6689413B2 (fr)
WO (1) WO2018131085A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
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JP2019095164A (ja) * 2017-11-28 2019-06-20 新星冷蔵工業株式会社 冷却システム
JP2020034251A (ja) * 2018-08-31 2020-03-05 日立ジョンソンコントロールズ空調株式会社 空気調和機
CN111999009A (zh) * 2020-08-05 2020-11-27 江苏精英冷暖设备工程有限公司 一种冷库制冷剂泄漏全覆盖自动检测系统
JP2020204423A (ja) * 2019-06-14 2020-12-24 株式会社富岡電子工業 冷凍回路
CN112771325A (zh) * 2018-09-28 2021-05-07 大金工业株式会社 热交换机组
JP2021085643A (ja) * 2019-11-29 2021-06-03 ダイキン工業株式会社 空気調和装置
JP2021085642A (ja) * 2019-11-29 2021-06-03 ダイキン工業株式会社 空気調和装置
WO2022249396A1 (fr) * 2021-05-27 2022-12-01 三菱電機株式会社 Dispositif de climatisation
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