CN112212429A - Low-energy-consumption air conditioner cooling system based on evaporative cooling and seasonal cold storage - Google Patents

Low-energy-consumption air conditioner cooling system based on evaporative cooling and seasonal cold storage Download PDF

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Publication number
CN112212429A
CN112212429A CN202011015910.9A CN202011015910A CN112212429A CN 112212429 A CN112212429 A CN 112212429A CN 202011015910 A CN202011015910 A CN 202011015910A CN 112212429 A CN112212429 A CN 112212429A
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CN
China
Prior art keywords
cold storage
evaporative cooling
underground
evaporative
ice
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN202011015910.9A
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Chinese (zh)
Inventor
孙铁柱
王琪
王鑫
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Xian Polytechnic University
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Xian Polytechnic University
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Filing date
Publication date
Application filed by Xian Polytechnic University filed Critical Xian Polytechnic University
Priority to CN202011015910.9A priority Critical patent/CN112212429A/en
Publication of CN112212429A publication Critical patent/CN112212429A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0007Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
    • F24F5/0035Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using evaporation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02Ducting arrangements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0007Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
    • F24F5/0017Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using cold storage bodies, e.g. ice
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0046Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00Constructional details common to different types of electric apparatus
    • H05K7/20Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20709Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
    • H05K7/208Liquid cooling with phase change
    • H05K7/20827Liquid cooling with phase change within rooms for removing heat from cabinets, e.g. air conditioning devices
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00Integration of renewable energy sources in buildings
    • Y02B10/40Geothermal heat-pumps
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14Thermal energy storage

Abstract

The invention discloses a low-energy-consumption air-conditioning cooling system based on evaporative cooling and seasonal cold storage, which comprises an evaporative cooling device connected with an exhaust pipe, wherein the evaporative cooling device comprises an indirect evaporative cooler and a direct evaporative cooler which are arranged in a shell of the evaporative cooling device, a coil pipe is arranged in the evaporative cooling device, the coil pipe is connected with an underground cold storage device, the underground cold storage device is connected with an ice making unit through a water outlet pipe, and the underground cold storage device is provided with an underground ventilation unit. The invention can store natural cold energy in winter by means of ice, and when the evaporation refrigeration in the air conditioning system in summer can not meet the cold energy required by an air conditioning area, the cold energy stored in a cross-season way is provided for the air conditioning system, so that the cold energy requirement in the thermal environment of a building in summer is met, and the aim of saving energy is fulfilled.

Description

Low-energy-consumption air conditioner cooling system based on evaporative cooling and seasonal cold storage
Technical Field
The invention belongs to the technical field of air conditioner refrigeration, and relates to a low-energy-consumption air conditioner cooling system based on evaporative cooling and seasonal cold storage.
Background
The air conditioner energy consumption accounts for the most in the building energy consumption, is one of the main directions of energy conservation and emission reduction, and is one of the current hot problems of how to reduce the air conditioner energy consumption and achieve the refrigeration effect. The evaporative cooling technology is an energy-saving and environment-friendly cooling mode, but because the evaporative cooling technology is influenced by environmental factors, the cooling requirement cannot be met in certain time periods in the air conditioning period, the current treatment mode is met by combining mechanical refrigeration, and in order to save energy and protect environment, the mechanical refrigeration is not used any more, but the cold energy in winter is stored and used until the evaporative cooling cannot meet the requirement.
Disclosure of Invention
The invention aims to provide a low-energy-consumption air-conditioning cooling system based on evaporative cooling and seasonal cooling storage.
The invention adopts the technical scheme that the low-energy-consumption air-conditioning cooling system based on evaporative cooling and seasonal cold storage comprises an evaporative cooling device connected with an exhaust pipe, wherein the evaporative cooling device comprises an indirect evaporative cooler and a direct evaporative cooler which are arranged in a shell of the evaporative cooling device, a coil pipe is arranged in the evaporative cooling device, the coil pipe is connected with an underground cold storage device, the underground cold storage device is connected with an ice making unit through a water outlet pipe, and the underground cold storage device is provided with an underground ventilation unit.
The present invention is also characterized in that,
the air inlet of the indirect evaporative cooler is opposite to the air inlet of the evaporative cooling device, the primary air outlet of the indirect evaporative cooler is opposite to the air inlet of the direct evaporative cooler, the coil is positioned between the primary air outlet of the indirect evaporative cooler and the air inlet of the direct evaporative cooler, the secondary air outlet of the indirect evaporative cooler is opposite to the secondary air outlet of the evaporative cooling device, the air outlet of the direct evaporative cooler is opposite to the primary air outlet of the evaporative cooling device, and the air exhaust pipe is connected with the primary air outlet of the evaporative cooling device.
An air feeder is arranged at the position, close to the primary air outlet of the evaporative cooling device, of the air exhaust pipe.
The ice making unit comprises an ice making device, a plurality of ice making grooves are formed in the ice making device, the ice making grooves are connected with water supply pipes, and each water supply pipe is connected with the underground cold storage device through a water outlet pipe.
Underground cold storage device is arranged in the underground, and underground cold storage device includes the casing, is provided with in the casing and stores up cold chamber and shower nozzle, and the shower nozzle is located directly over storing up the cold chamber, stores up cold chamber below intercommunication, and the casing bottom is connected respectively and is provided with suction pump and circulating water pump, and suction pump and play water piping connection, circulating water pump pass through connecting pipe A and are connected with coil pipe one end, and the coil pipe other end passes through connecting pipe B and is connected with the shower nozzle.
The cold storage chamber comprises a plurality of ice storage strips which are vertically arranged side by side, an ice block support is arranged below each ice storage strip, and a spray head corresponds to the position right above each ice storage strip.
The ice storage strip is formed by at least four ice storage units in a row, the ice storage units are used for placing ice cubes, gaps are formed among the ice storage units, and water flowing holes are formed in the bottom ends of the ice storage units.
The underground ventilation unit comprises an air supply pipe, one end of the air supply pipe is located above the ground, the other end of the air supply pipe is located below the ground, the end of the air supply pipe located below the ground is a closed port, the end located above the ground is an open port, a plurality of air supply openings are formed in the air supply pipe, and the air supply openings are located above the shell of the underground cold storage device and are evenly arranged.
The air supply pipe is provided with a ventilator near the upper port thereof.
The underground cold storage device is covered with a heat preservation layer.
The invention has the beneficial effects that:
1) the air conditioner cooling system utilizes the cold storage technology to store the natural cold in winter in the form of ice, and the natural cold is placed in a cold storage chamber to wait for the evaporative cooling air conditioner in summer to be used when the thermal comfort requirement of an air conditioning area cannot be met, so that the mechanical refrigeration is replaced, and the energy consumption of the air conditioner is saved.
2) The air conditioner cooling system is provided with a plurality of ice storage strips in the cold storage device, each ice storage strip is provided with a plurality of ice storage units, and each ice storage unit can be used for placing four to five ice cubes, so that the ice cubes can be placed according to the required requirements, the cold energy can be stored as much as possible, gaps are reserved among the ice storage units, water can smoothly flow down, and the heat exchange area between water spraying and ice is increased.
3) The air conditioner cooling system is provided with the underground ventilation unit, and can firstly ventilate cold air when cold storage is carried out in winter, so that the temperature of the cold storage chamber can be reduced to be below zero, and the aim is to prevent the heat in the cold storage chamber from consuming the cold energy contained in ice blocks, thereby storing more cold energy and avoiding the loss of wall surface cold energy. .
4) The heat-insulating layer is arranged outside the underground cold storage device of the air-conditioning cooling system, so that the heat-insulating effect of the cold storage chamber can be increased, and the loss of cold energy of the cold storage chamber can be reduced.
Drawings
FIG. 1 is a schematic diagram of a low energy consumption air-conditioning cooling system based on evaporative cooling and seasonal cold storage according to the present invention;
fig. 2 is a partial schematic view of an underground cold storage device of the low-energy-consumption air-conditioning cooling system based on evaporative cooling and seasonal cold storage.
In the figure, 1, an ice making groove, 2, an ice making device, 3, a water supply pipe, 4, an air conditioning area, 5, an indirect evaporator, 6, a direct evaporator, 7, a blower, 8, a water outlet pipe, 9, a ventilator, 10, an air supply pipe, 11, an artificial passage, 12, an exhaust pipe, 13, an ice storage strip, 14, a water suction pump, 15, a circulating water pump, 16, a coil pipe, 17, an evaporative cooling device, 18, an air supply opening, 19, a spray head, 20, an ice storage unit, 21, a cold storage chamber, 22, an ice block bracket, 23, an insulating layer, 24, an underground cold storage device, 25, a shell, 26, a connecting pipe A, 27 and a connecting pipe B.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
The invention discloses a low-energy-consumption air-conditioning cooling system based on evaporative cooling and seasonal cold storage, which comprises an evaporative cooling device 17 connected with an exhaust pipe 12, wherein the evaporative cooling device 17 comprises an indirect evaporative cooler 5 and a direct evaporative cooler 6 which are arranged in a shell of the evaporative cooling device, a coil 16 is arranged in the evaporative cooling device 17, the coil 16 is connected with an underground cold storage device 24, the underground cold storage device 24 is connected with an ice making unit through a water outlet pipe 8, and the underground cold storage device 24 is provided with an underground ventilation unit, as shown in figure 1.
An air inlet of the indirect evaporative cooler 5 is opposite to an air inlet of the evaporative cooling device, a primary air outlet of the indirect evaporative cooler 5 is opposite to an air inlet of the direct evaporative cooler 6, a coil 16 is positioned between the primary air outlet of the indirect evaporative cooler 5 and the air inlet of the direct evaporative cooler 6, a secondary air outlet of the indirect evaporative cooler 5 is opposite to a secondary air outlet of the evaporative cooling device 17, an air outlet of the direct evaporative cooler 6 is opposite to a primary air outlet of the evaporative cooling device 17, an air exhaust pipe 12 is connected with the primary air outlet of the evaporative cooling device 17, and an air feeder 7 is arranged at the position, close to the primary air outlet of the evaporative cooling device 17, of the air exhaust pipe 12.
The ice making unit comprises an ice making device 2, a plurality of ice making grooves 1 are arranged in the ice making device 2, the ice making grooves 1 are connected with water supply pipes 3, and each water supply pipe 3 is connected with an underground cold storage device 24 through a water outlet pipe 8.
As shown in fig. 2, the underground cold storage device 24 is arranged underground, an artificial passage 11 is arranged between the underground cold storage device 24 and the ground, the artificial passage is used for carrying ice blocks manually and maintaining, an insulating layer 23 is covered outside the underground cold storage device 24, the underground cold storage device 24 comprises a shell 25, a cold storage chamber 21 and a spray head 19 are arranged in the shell 25, the spray head 19 is positioned right above the cold storage chamber 21, the lower part of the cold storage chamber 21 is communicated, a water suction pump 14 and a circulating water pump 15 are respectively connected and arranged at the bottom of the shell 25, the water suction pump 14 is connected with a water outlet pipe 8, the circulating water pump 15 is connected with one end of a coil pipe 16 through a connecting pipe a26, and the other end of the coil pipe 16 is.
The cold storage chamber 21 comprises a plurality of ice storage strips 13 which are vertically arranged side by side, an ice block support 22 is arranged below each ice storage strip 13, the ice block support 22 is used for supporting ice blocks, and a spray head 19 is arranged right above each ice storage strip 13. The ice storage strip is formed by arranging at least four ice storage units 20 in a row, the ice storage units 20 are used for placing ice cubes, gaps are formed among the ice storage units 20, and water flowing holes are formed in the bottom ends of the ice storage units 20, so that water flows down smoothly to form water circulation.
The underground ventilation unit comprises an air supply pipe 10, one end of the air supply pipe 10 is located above the ground, the other end of the air supply pipe is located below the ground, the end of the air supply pipe 10 located below the ground is a closed port, the end located above the ground is an open port, a ventilator 9 is arranged on the position, close to the upper port, of the air supply pipe 10, a plurality of air supply ports 18 are formed in the air supply pipe 10, and the air supply ports 18 are located above a shell 25 of an underground cold storage device.
The working principle of the low-energy-consumption air-conditioning cooling system based on evaporative cooling and seasonal cold storage is as follows:
1) the working process of the system during cold storage in winter:
and starting the ventilator 9, allowing external cold air to enter the area of the underground cold storage device 24 from the blast pipe, discharging heat in the area of the underground cold storage device 24, starting the water suction pump 14, pumping water melted in summer into the ice making groove 1 of the ice making device 2, freezing the water by utilizing the environment below zero degree outside, and carrying the prepared ice to the ice storage unit 20 of the cold storage chamber 21 through a manual channel until all the melted water is made into ice and stored in the ice storage unit.
2) The working process of the system in the transition season and summer cooling time is as follows:
when the requirement of air supply of the air conditioning area 4 can be met only by direct evaporative cooling, the underground cold storage device 24 does not operate, outdoor air is subjected to equal-enthalpy cooling through the direct evaporative cooler 6 after being subjected to equal-humidity cooling through the indirect evaporative cooler 5, and then is sent into the room through the air feeder 7, so that the requirement of comfort in the air conditioning area is met.
When the outdoor climate is hot and the air supply requirement of the air conditioning area 4 cannot be met only by the evaporative cooling technology, the underground cold storage device 24 operates, outdoor air is subjected to moisture cooling by the indirect evaporative cooler 5 and the like, then is subjected to dehumidification cooling by the coil pipe 16, does not operate the direct evaporative cooler 6, and then is sent into the room by the air feeder 7, so that the indoor comfort requirement of the air conditioning area is met. In the process, the circulating water pump 15 conveys cold water at the bottom of the shell 25 of the underground cold storage device 24 to the coil pipe 16 for dehumidifying and cooling outdoor air, the cold water absorbing heat is sprayed to each ice storage strip 13 through the spray head 19 to be cooled, the cold water flows down to the bottom of the cold storage chamber 21 along gaps to obtain the cold water, and the cold water is conveyed to the coil pipe 16 through the circulating water pump 15 and repeatedly and sequentially circulates.
According to the mode, the low-energy-consumption air-conditioning cooling system based on evaporative cooling and seasonal cold storage combines seasonal cold storage and evaporative cooling, ice making of cold energy in winter is stored in summer, and the system is started when the evaporative cooling cannot meet indoor requirements. Greatly saves energy consumption and has higher economic value and social value.

Claims (10)

1. The utility model provides a low energy consumption air conditioner cooling system based on evaporative cooling and seasonality store up cold, its characterized in that, including evaporative cooling device (17) that is connected with exhaust pipe (12), evaporative cooling device (17) are including setting up indirect evaporative cooler (5) and direct evaporative cooler (6) in its casing, be provided with coil pipe (16) in evaporative cooling device (17), coil pipe (16) are connected with underground and store up cold charge (24), underground stores up cold charge (24) and is connected with the ice making unit through outlet pipe (8), just underground and store up cold charge (24) and be provided with secret ventilation unit.
2. A low energy air-conditioning cooling system based on evaporative cooling and seasonal cold storage according to claim 1, characterized in that the air inlet of the indirect evaporative cooler (5) is opposite to the air inlet of the evaporative cooling device, the primary air outlet of the indirect evaporative cooler (5) is opposite to the air inlet of the direct evaporative cooler (6), the coil (16) is located between the primary air outlet of the indirect evaporative cooler (5) and the air inlet of the direct evaporative cooler (6), the secondary air outlet of the indirect evaporative cooler (5) is opposite to the secondary air outlet of the evaporative cooling device (17), the air outlet of the direct evaporative cooler (6) is opposite to the primary air outlet of the evaporative cooling device (17), the exhaust pipe (12) is connected with a primary air outlet of the evaporative cooling device (17).
3. A low energy consumption air-conditioning cooling system based on evaporative cooling and seasonal cold storage according to claim 2, characterized in that the exhaust duct (12) is provided with a blower (7) near the primary air outlet of the evaporative cooling device (17).
4. A low energy consumption air conditioner cooling system based on evaporative cooling and seasonal cold storage according to claim 1, characterized in that the ice making unit comprises an ice making device (2), a plurality of ice making grooves (1) are arranged in the ice making device (2), water supply pipes (3) are connected to the ice making grooves (1), and each water supply pipe (3) is connected with an underground cold storage device (24) through a water outlet pipe (8).
5. A low energy consumption air-conditioning cooling system based on evaporative cooling and seasonal cold storage, characterized in that, underground cold storage device (24) sets up in the underground, underground cold storage device (24) includes casing (25), be provided with in casing (25) cold storage room (21) and shower nozzle (19), shower nozzle (19) are located directly over cold storage room (21), cold storage room (21) below intercommunication, casing (25) bottom is connected respectively and is provided with suction pump (14) and circulating water pump (15), suction pump (14) are connected with outlet pipe (8), circulating water pump (15) are connected with coil pipe (16) one end through connecting pipe A (26), the coil pipe (16) other end is connected with shower nozzle (19) through connecting pipe B (27).
6. A low energy consumption air-conditioning cooling system based on evaporative cooling and seasonal cold storage according to claim 5, characterized in that the cold storage chamber (21) comprises a plurality of ice storage bars (13) arranged vertically side by side, an ice cube support (22) is arranged under each ice storage bar (13), and a spray head (19) is arranged right above each ice storage bar (13).
7. A low energy consumption air-conditioning cooling system based on evaporative cooling and seasonal cold storage according to claim 6, characterized in that the ice storage strip is composed of not less than four ice storage units (20) in a row, the ice storage units (20) are used for placing ice cubes, gaps are arranged among the ice storage units (20), and water flowing holes are arranged at the bottom ends of the ice storage units (20).
8. A low energy consumption air-conditioning cooling system based on evaporative cooling and seasonal cold storage according to claim 5, characterized in that the underground ventilation unit comprises a blast pipe (10) with one end located above ground and the other end located underground, the end of the blast pipe (10) located underground is a closed port, the end located above ground is an open port, a plurality of blast openings (18) are arranged on the blast pipe (10), and the blast openings (18) are uniformly arranged above the shell (25) of the underground cold storage device (24).
9. A low energy consumption air-conditioning cooling system based on evaporative cooling and seasonal cold storage according to claim 8, characterised in that the blower tube (10) is provided with a ventilator (9) near its upper port.
10. A low energy consumption air-conditioning cooling system based on evaporative cooling and seasonal cold storage according to claim 1, characterized in that the underground cold storage means (24) is externally covered with an insulating layer (23).
CN202011015910.9A 2020-09-24 2020-09-24 Low-energy-consumption air conditioner cooling system based on evaporative cooling and seasonal cold storage Pending CN112212429A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011015910.9A CN112212429A (en) 2020-09-24 2020-09-24 Low-energy-consumption air conditioner cooling system based on evaporative cooling and seasonal cold storage

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202011015910.9A CN112212429A (en) 2020-09-24 2020-09-24 Low-energy-consumption air conditioner cooling system based on evaporative cooling and seasonal cold storage
PCT/CN2021/091826 WO2022062413A1 (en) 2020-09-24 2021-05-06 Evaporative cooling and seasonal cold storage-based low energy consumption air conditioning cooling system

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Publication Number Publication Date
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Inventor after: Sun Tiezhu

Inventor after: Wang Qi

Inventor after: Wang Xin

Inventor before: Sun Tiezhu

Inventor before: Wang Qi

Inventor before: Wang Xin