CN109084495B - Jet type artificial snow refrigerating cold storage system - Google Patents
Jet type artificial snow refrigerating cold storage system Download PDFInfo
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- CN109084495B CN109084495B CN201810918920.XA CN201810918920A CN109084495B CN 109084495 B CN109084495 B CN 109084495B CN 201810918920 A CN201810918920 A CN 201810918920A CN 109084495 B CN109084495 B CN 109084495B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 103
- 238000009825 accumulation Methods 0.000 claims abstract description 68
- 239000006227 byproduct Substances 0.000 claims abstract description 15
- 238000005057 refrigeration Methods 0.000 claims abstract description 15
- 238000002347 injection Methods 0.000 claims abstract description 10
- 239000007924 injection Substances 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims description 31
- 238000001816 cooling Methods 0.000 claims description 28
- 239000012530 fluid Substances 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 20
- 238000007667 floating Methods 0.000 claims description 16
- 239000013078 crystal Substances 0.000 claims description 11
- 238000005338 heat storage Methods 0.000 claims description 9
- 238000010926 purge Methods 0.000 claims description 7
- 239000000498 cooling water Substances 0.000 claims description 6
- 239000000428 dust Substances 0.000 claims description 6
- 238000002309 gasification Methods 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 4
- 238000009833 condensation Methods 0.000 claims description 4
- 230000005494 condensation Effects 0.000 claims description 4
- 238000007791 dehumidification Methods 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- 238000009792 diffusion process Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 239000002808 molecular sieve Substances 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 3
- 239000008399 tap water Substances 0.000 claims description 3
- 235000020679 tap water Nutrition 0.000 claims description 3
- 241000353097 Molva molva Species 0.000 abstract 1
- 239000003507 refrigerant Substances 0.000 description 7
- 239000007789 gas Substances 0.000 description 6
- 238000001914 filtration Methods 0.000 description 4
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 239000012855 volatile organic compound Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000005457 ice water Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 241000533950 Leucojum Species 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 238000004887 air purification Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 235000013570 smoothie Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Classifications
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- 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
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/002—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant
- F25B9/004—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant the refrigerant being air
-
- 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
-
- 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
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
-
- 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
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
- F25B43/003—Filters
-
- 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
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/08—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using ejectors
-
- 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
- F25B2341/00—Details of ejectors not being used as compression device; Details of flow restrictors or expansion valves
- F25B2341/001—Ejectors not being used as compression device
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Power Engineering (AREA)
- Other Air-Conditioning Systems (AREA)
- Drying Of Gases (AREA)
Abstract
The invention discloses an injection type artificial snow making refrigeration cold accumulation system which comprises an air filter, a compressor, a heat exchanger, an injector, a separator, a cold accumulation chamber, a dehumidifier, a release Leng Huanre device and a heat accumulation water tank. The injection type refrigeration cold accumulation system consumes a small amount of electric power to drive the compressor, and the injection system transfers the heat of water (ice) in the cold accumulation pool to domestic hot water, so that the domestic hot water can be produced as a byproduct while cold energy is provided for the outside.
Description
Technical Field
The invention relates to a refrigeration cold accumulation system.
Background
The traditional cold accumulation is mainly divided into ice cold accumulation and water cold accumulation according to a cold accumulation medium, wherein the water cold accumulation mainly stores and releases cold energy in the form of temperature difference of water, and is sensible heat cold accumulation, and the cold accumulation density is only 2-3.5 RTh/m 3 The method comprises the steps of carrying out a first treatment on the surface of the The ice cold accumulation mainly stores or releases cold energy in the form of ice water phase change, and is latent heat cold accumulation, and the cold accumulation density can reach 10-14 RTh/m 3 . Because the cold accumulation density of the water cold accumulation is smaller, the cold accumulation of the main stream is mainly ice cold accumulation. The static ice cold accumulation has high thermal resistance in the ice making process, small specific surface area in the ice melting process and low speed; the dynamic ice cold accumulation has the defects of poor running stability, complex refrigeration cold accumulation equipment, high investment and the like.
The dynamic ice cold accumulation system in the current market mainly comprises a refrigerating unit, an ice making unit, an ice accumulation groove, a cold releasing plate exchange (ice melting plate exchange) unit and the like. The refrigerating and ice making unit (or double-working-condition unit) has complex structure, high investment and large occupied area; the ice making working condition needs to use glycol (or glycol-like) refrigerant, so that the initial investment and leakage danger are increased, the efficiency of the refrigeration host is about 60-70% of that of the air conditioning working condition in the cold storage mode, the efficiency attenuation is larger, and the heat removed by refrigeration is generally converted into waste heat to be released to the environment, so that the urban heat island effect is aggravated.
Disclosure of Invention
The invention provides a dynamic refrigeration cold accumulation system which has simple structure, stable operation and high cold release efficiency.
The technical scheme provided by the invention is as follows:
an injection type artificial snow refrigerating cold accumulation system comprises
(1) Air filter
(1) The air filter with renewable molecular sieve is adopted, the air directly sucked into the atmosphere is used as working medium raw material, and the filtered air enters the compressor;
(2) Compressor with a compressor body having a rotor with a rotor shaft
Negative pressure is provided for air sucked by the air filter, pressure is provided for working fluid in the injection process, and domestic hot water is a byproduct;
(1) compressing the purified air;
(2) an indirect heat exchange cooling unit is carried out by tap water, and compressed air is cooled to 15-18 ℃;
(3) byproduct domestic hot water;
(4) the cooled air enters a heat exchanger, and the byproduct domestic hot water enters a heat storage water tank;
(3) Heat exchanger
(1) Cooling air compressed by the compressor by cold water in the cold accumulation chamber to reduce the temperature to 0.5-2 ℃, wherein the highest temperature of the normal working condition of non-original driving is less than or equal to 4 ℃;
(2) the cooled air enters the ejector as a working fluid;
(3) when the vehicle is initially started, cooling is performed in a process of gradually accumulating cold energy, and the temperature of cold water and air is gradually reduced to zero through circulation;
(4) the cold water after heat exchange flows back to the cold accumulation chamber, and uniformly showers the cold accumulation chamber with the ice floating layer through the liquid distributor;
(4) Ejector device
(1) The low-temperature, dry and pressurized air cooled by the heat exchanger is used as working fluid, and jet fluid is sucked through the ejector;
(2) cold water from a cold water layer of the cold accumulation chamber is used as injection fluid;
(3) after being sprayed out through a nozzle of the receiving chamber of the sprayer, the air sucks cold water into the receiving chamber and atomizes the cold water, and the air and the atomized cold water sequentially enter a mixing chamber and a diffusion chamber of the sprayer;
(4) the low-temperature drying pressurized air is decompressed by the nozzle, and then the atomized cold water is absorbed and gasified to form steam, so that the near-saturation state is reached;
(5) the atomized cold water is partially gasified into steam which is taken away by air, and the heat absorbed by phase change in the gasification process leaves the cold accumulation chamber along with the air to complete refrigeration;
(6) the phase change latent heat in the gasification process is provided by the residual liquid, after heat transfer, the residual liquid is partially supercooled, supercooled atomized water is solidified into ice crystals by taking particles in the air as condensation nuclei to finish cold accumulation, snow making and haze removal;
(7) the atomized cold water which is not gasified and solidified is combined with the rest air dust to be converged into liquid drops, and the liquid drops are formed to remove haze;
(8) the mixed fluid enters the separator after leaving the ejector;
(5) Separator
Gas-solid-liquid separation of the mixed fluid from the ejector using a cyclone separator:
(1) the separated wet air enters a dehumidifier;
(2) the separated ice crystals and liquid drops fall into the ice floating layer of the cold accumulation chamber in a scattering way;
(6) Cold accumulation chamber
(1) The inner upper space is provided with an ejector and a separator which are embedded on the inner upper surface;
(2) the cold accumulation working medium of the cold accumulation layer is approximately layered up and down, the upper layer is a floating ice layer, the lower layer is a cold water layer, and the temperature is 0 ℃;
(3) a filter screen is arranged on the cold water layer at the lower layer of the cold storage layer, and ice is filtered through water;
(7) Dehumidifier
(1) Dehydrating and dehumidifying the wet air flowing through the separator;
(2) a part of the dehumidified dry haze-free air is exhausted in the form of purge gas;
(3) the other part of the air is dried under pressure and the clean air is recycled;
(4) latent heat of liquefaction in dehumidification process: the air takes away most of the latent heat of liquefaction, one part of heat carried by the air leaves the system in the form of purge gas, and the other part of heat carried by the air which is recycled is finally transferred into domestic hot water through a compression process; the rest part of the liquefied latent heat is absorbed by the dehumidifier and the liquid water, and the cooling water is introduced into a water cooling system;
(5) the low-temperature liquid water after the dehumidifier is desorbed returns to the cold accumulation chamber to uniformly shower the ice floating layer of the cold accumulation chamber through the liquid distributor;
(8) Cooling heat exchanger
(1) Cold water in a cold water layer of the cold storage chamber is pumped into an energy release heat exchanger to exchange heat after passing through a filter screen, and then flows back to a floating ice layer of the cold storage chamber;
(2) cooling the cooling water introduced from the outside of the system to form chilled water for cooling the outside;
(9) Heat storage water tank
(1) Caching and cooling domestic hot water which is a byproduct of the compressor;
the heat storage and insulation functions are provided; domestic hot water is provided to the outside.
The invention has the following advantages:
(1) Integrated refrigerating unit and cold accumulation system
The refrigerating unit and the cold accumulation unit are organically combined:
(1) the investment of a unit is reduced;
(2) the process is compact and the stability is high;
(3) the starting and stopping are convenient, night valley electricity can be fully utilized, refrigeration and cold accumulation can be carried out, the operation cost is reduced, and the energy consumption condition of a power grid is optimized;
(4) the occupied area is saved;
(5) and the operation and maintenance cost is low.
(2) Refrigerant
The whole process takes direct water (including liquid water, ice and steam) as a refrigerant, and organic refrigerants are not needed:
(1) the system investment is reduced;
(2) other refrigerants are not needed for indirect heat transfer, so that the heat transfer temperature difference is reduced, and the system efficiency is improved;
(3) the operation and the maintenance are simple, and the organic refrigerant is not required to be supplemented, or the danger of refrigerant leakage is worried.
(3) Snow making cold accumulation
The working fluid stream forms snow after the ejector, forms ice crystals after the ejector, separates and falls into the ice storage level, forming ice slurry (smoothie) rather than ice cubes:
(1) the specific surface area is large, and the ice melting and cooling efficiency is high;
(2) the dynamic ice cold storage temperature field is uniform, the temperature gradient is small, local supercooling is not formed, the material requirement is reduced, and the equipment investment is reduced;
(3) the dynamic ice cold storage temperature field is uniform, and the operation is stable and high.
(4) Compressed air and refrigerating water are recycled
(1) The size of the installed compressor of the equipment is reduced, and the investment is reduced;
(2) the air purification, air pressure relief and refrigerating water cooling capacity are reduced, and the operation cost is reduced;
(3) the cold-releasing backwater and the jet refrigeration circulating water are directly contacted with the floating ice layer (ice sand/ice slurry/ice crystal), the thermal resistance of ice melting and cold releasing is small, the temperature field is uniform, and the cold releasing efficiency is high.
(5) Byproduct domestic hot water
The heat transferred by refrigeration is fully utilized, waste is changed into valuable, and domestic hot water is a byproduct:
(1) the refrigerating system does not need a cooling tower, reduces the occupied area and construction investment of the cooling tower, and avoids the influence of the cooling tower on the beautiful appearance of the building;
(2) the heat generated by the refrigeration of the system is not discharged into the environment, so that the influence on the environment is reduced, and compared with the traditional mode, the urban heat island effect can be reduced;
(3) changing waste into valuable, and by-producing domestic hot water, and reducing investment and operation cost.
(6) Help to treat haze
(1) Taking air as a working medium, taking dust particles in the air as condensation nuclei of ice crystals to prepare snow, turning waste into wealth, and preparing snow by haze;
(2) before the air enters the compressor, the air is required to be adsorbed and filtered to remove dust particles with enlarged particles and volatile organic gases in the air, so that the air atmospheric suspended matters and VOC (volatile organic compounds) are reduced;
(3) and finally, the recycled purge gas is clean haze-free air.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings.
As shown in figure 1, the jet type artificial snow refrigerating and cold accumulating system comprises
(1) Air filter
The air filter with the renewable molecular sieve is adopted, air directly sucked into the atmosphere is used as working medium raw materials, and the filtered air is pressurized by a compressor:
(1) the filtration efficiency of dust (> 2 μm) is more than or equal to 95%;
(2) removal of H 2 O、CO 2 、C x H y An equal VOC;
(3) the filtered air enters the compressor.
(2) Compressor with a compressor body having a rotor with a rotor shaft
The core power device of the system provides negative pressure for the air sucked by the filter, provides pressure for working fluid in the injection process, and produces domestic hot water as a byproduct.
(1) Compressing the purified air (or air after cyclic dehumidification) to 0.45MPa;
(2) the indirect heat exchange cooling unit is carried out by tap water, and compressed air (cooling air to 15-18 ℃) is cooled;
(3) byproduct domestic hot water (55 ℃ +/-5 ℃);
(4) the cooled air enters a heat exchanger, and the byproduct domestic hot water enters a heat storage water tank.
(3) Heat exchanger
(1) Cooling air compressed by the compressor by cold water in the cold accumulation chamber to reduce the temperature to 0.5-2 ℃ (the highest temperature of normal working condition of non-original driving is less than or equal to 4 ℃);
(2) the cooled air enters the ejector as a working fluid;
(3) when the vehicle is initially driven, cooling is performed in a process of gradually accumulating cold energy, and the temperature of cold water and air is gradually reduced to be close to zero through circulation;
(4) the cold water after heat exchange flows back to the cold accumulation chamber, and uniformly showers the cold accumulation chamber with the ice floating layer through the liquid distributor.
(4) Ejector device
The ejector (ejector) is a core device of the system, working fluid in the ejection process is air, and ejection fluid is cold water.
(1) Air with low temperature (0.5-2 ℃) and drying and pressure (0.4 MPa) after being cooled by a heat exchanger is used as working fluid, and jet fluid is sucked through an ejector;
(2) cold water (normal working condition is 0 ℃) from a cold water layer of the cold accumulation chamber is used as injection fluid;
(3) after being sprayed out through a nozzle of the receiving chamber of the sprayer, the air sucks cold water into the receiving chamber and atomizes the cold water, and the air and the atomized cold water sequentially enter a mixing chamber and a diffusion chamber of the sprayer;
(4) the low-temperature drying pressurized air is decompressed by the nozzle, and then atomized cold water can be absorbed and gasified to form steam, so that the near-saturation state is achieved;
(5) the atomized cold water is partially gasified into steam which is taken away by air, and the heat absorbed by phase change in the gasification process leaves the cold accumulation chamber along with the air to complete refrigeration;
(6) the phase change latent heat in the gasification process is provided by the residual liquid, after heat transfer, the residual liquid is partially supercooled, and supercooled atomized water is solidified into ice crystals (snowflakes) by taking particles (haze) in the air as condensation nuclei to finish cold accumulation, snow making and haze removal;
(7) the atomized cold water which is not gasified and solidified is combined with the rest air dust to be converged into liquid drops, and the liquid drops are formed to remove haze;
(8) the mixed fluid (containing ice crystals, droplets) exits the ejector and enters the separator.
(5) Separator
Gas-solid (liquid) separation of the mixed fluid (containing ice crystals, droplets) from the ejector, a cyclone separator can be used:
(1) the separated wet air enters a dehumidifier;
(2) the separated ice crystals and liquid drops fall into the ice floating layer of the cold accumulation chamber.
(6) Cold accumulation chamber
(1) The inner upper space is provided with an ejector and a separator which are embedded on the inner upper surface;
(2) the cold accumulation working medium (ice water mixture/ice slurry/ice sand) of the cold accumulation layer is layered approximately up and down, the upper layer is a floating ice layer, the lower layer is a cold water layer, and the temperature is 0 ℃;
(3) the lower layer (cold water layer) of the cold accumulation layer is provided with a filter screen for filtering ice.
(7) Dehumidifier
(1) Dehydrating and dehumidifying the wet air flowing through the separator;
(2) a part of the dehumidified dry haze-free air is exhausted in a purge gas mode, and the air is purified and haze-removed as seen by an inlet and outlet system of the air;
(3) the other part of the dry clean air with pressure is recycled, so that the introduced air quantity of the system is saved, and the compression work is saved; the filtering load of air filtering is reduced;
(4) latent heat of liquefaction in dehumidification process: most of the air is taken away (one part of the heat carried by the air leaves the system in the form of purge gas, and the other part of the heat carried by the air which is recycled is finally transferred into domestic hot water through a compression process); the rest is absorbed by a dehumidifier and liquid water, and a cooling water is introduced to a water removing system;
(5) the low-temperature liquid water after the dehumidifier is desorbed is returned to the cold accumulation chamber and uniformly sprinkled on the ice floating layer of the cold accumulation chamber through the liquid distributor.
(8) Cooling heat exchanger
(1) Cold water in a cold water layer of the cold storage chamber is pumped into an energy release heat exchanger to exchange heat after passing through a filter screen, and then flows back to a floating ice layer of the cold storage chamber;
(2) cooling water introduced from outside the system is cooled to form chilled water for cooling.
(9) Heat storage water tank
(1) Caching and cooling domestic hot water which is a byproduct of the compressor;
(2) the heat storage and insulation functions are provided; domestic hot water is provided to the outside.
Claims (1)
1. The utility model provides a jet type artificial snow refrigeration cold-storage system which is characterized by comprising
(1) Air filter
(1) The air filter with renewable molecular sieve is adopted, the air directly sucked into the atmosphere is used as working medium raw material, and the filtered air enters the compressor;
(2) Compressor with a compressor body having a rotor with a rotor shaft
Negative pressure is provided for air sucked by the air filter, pressure is provided for working fluid in the injection process, and domestic hot water is a byproduct;
(1) compressing the purified air;
(2) an indirect heat exchange cooling unit is carried out by tap water, and compressed air is cooled to 15-18 ℃;
(3) byproduct domestic hot water;
(4) the cooled air enters a heat exchanger, and the byproduct domestic hot water enters a heat storage water tank;
(3) Heat exchanger
(1) Cooling air compressed by the compressor by cold water in the cold accumulation chamber to reduce the temperature to 0.5-2 ℃, wherein the highest temperature of the normal working condition of non-original driving is less than or equal to 4 ℃;
(2) the cooled air enters the ejector as a working fluid;
(3) when the vehicle is initially started, cooling is performed in a process of gradually accumulating cold energy, and the temperature of cold water and air is gradually reduced to zero through circulation;
(4) the cold water after heat exchange flows back to the cold accumulation chamber, and uniformly showers the cold accumulation chamber with the ice floating layer through the liquid distributor;
(4) Ejector device
(1) The low-temperature, dry and pressurized air cooled by the heat exchanger is used as working fluid, and jet fluid is sucked through the ejector;
(2) cold water from a cold water layer of the cold accumulation chamber is used as injection fluid;
(3) after being sprayed out through a nozzle of the receiving chamber of the sprayer, the air sucks cold water into the receiving chamber and atomizes the cold water, and the air and the atomized cold water sequentially enter a mixing chamber and a diffusion chamber of the sprayer;
(4) the low-temperature drying pressurized air is decompressed by the nozzle, and then the atomized cold water is absorbed and gasified to form steam, so that the near-saturation state is reached;
(5) the atomized cold water is partially gasified into steam which is taken away by air, and the heat absorbed by phase change in the gasification process leaves the cold accumulation chamber along with the air to complete refrigeration;
(6) the phase change latent heat in the gasification process is provided by the residual liquid, after heat transfer, the residual liquid is partially supercooled, supercooled atomized water is solidified into ice crystals by taking particles in the air as condensation nuclei to finish cold accumulation, snow making and haze removal;
(7) the atomized cold water which is not gasified and solidified is combined with the rest air dust to be converged into liquid drops, and the liquid drops are formed to remove haze;
(8) the mixed fluid enters the separator after leaving the ejector;
(5) Separator
Gas-solid-liquid separation of the mixed fluid from the ejector using a cyclone separator:
(1) the separated wet air enters a dehumidifier;
(2) the separated ice crystals and liquid drops fall into the ice floating layer of the cold accumulation chamber in a scattering way;
(6) Cold accumulation chamber
(1) The inner upper space is provided with an ejector and a separator which are embedded on the inner upper surface;
(2) the cold accumulation working medium of the cold accumulation layer is approximately layered up and down, the upper layer is a floating ice layer, the lower layer is a cold water layer, and the temperature is 0 ℃;
(3) a filter screen is arranged on the cold water layer at the lower layer of the cold storage layer, and ice is filtered through water;
(7) Dehumidifier
(1) Dehydrating and dehumidifying the wet air flowing through the separator;
(2) a part of the dehumidified dry haze-free air is exhausted in the form of purge gas;
(3) the other part of the air is dried under pressure and the clean air is recycled;
(4) latent heat of liquefaction in dehumidification process: the air takes away most of the latent heat of liquefaction, one part of heat carried by the air leaves the system in the form of purge gas, and the other part of heat carried by the air which is recycled is finally transferred into domestic hot water through a compression process; the rest part of the liquefied latent heat is absorbed by the dehumidifier and the liquid water, and the cooling water is introduced into a water cooling system;
(5) the low-temperature liquid water after the dehumidifier is desorbed returns to the cold accumulation chamber to uniformly shower the ice floating layer of the cold accumulation chamber through the liquid distributor;
(8) Cooling heat exchanger
(1) Cold water in a cold water layer of the cold storage chamber is pumped into an energy release heat exchanger to exchange heat after passing through a filter screen, and then flows back to a floating ice layer of the cold storage chamber;
(2) cooling the cooling water introduced from the outside of the system to form chilled water for cooling the outside;
(9) Heat storage water tank
(1) Caching and cooling domestic hot water which is a byproduct of the compressor;
(2) the heat storage and insulation functions are provided; domestic hot water is provided to the outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810918920.XA CN109084495B (en) | 2018-08-14 | 2018-08-14 | Jet type artificial snow refrigerating cold storage system |
Applications Claiming Priority (1)
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| CN211977299U (en) * | 2018-08-14 | 2020-11-20 | 中节能城市节能研究院有限公司 | Injection type artificial snow making refrigeration cold accumulation system |
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| JP2004500534A (en) * | 1999-12-28 | 2004-01-08 | アレクサンドル・アンドリーヴィッチ・パニン | Cold air cooling system and turboexpander turbine of the system |
| JP2003254686A (en) * | 2002-02-28 | 2003-09-10 | Kajima Corp | Ice making system and low temperature storage system using the same |
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| CN206176543U (en) * | 2016-07-20 | 2017-05-17 | 王全龄 | What formula of drenching was removed haze tower and was adopted it removes haze tower heat pump |
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| CN211977299U (en) * | 2018-08-14 | 2020-11-20 | 中节能城市节能研究院有限公司 | Injection type artificial snow making refrigeration cold accumulation system |
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| CN109084495A (en) | 2018-12-25 |
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