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
  • F25B25/00—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00

Definitions

• the present invention relates to refrigeration technology, and in particular, to a heatless cooling method and a circulation system thereof that do not emit heat to the outside environment. Background technique
• the existing refrigeration methods of various refrigeration technologies including phase change refrigeration, magnetic refrigeration, and semiconductor refrigeration, all generate heat on the one side; during the cooling and cooling process, heat must be discharged to the outside environment; and usually, the heat generation is large. More or less than the cooling capacity.
• the current refrigeration technology is not refrigeration, but heating; usually, the more refrigerating the more heat, the more heat the more unable to refrigerate, and the more unable to refrigerate, the more heat is generated.
• the temperature difference between the cooling temperature of the refrigerating machine and the temperature of the exhaust heat environment must be limited to a small range, otherwise, if the temperature difference is enlarged, the cooling efficiency of the existing refrigeration technology will be extremely low, or even impossible to cool at all;
• the existing refrigeration technology In order to obtain the cooling capacity below -4 (TC), the existing refrigeration technology has to adopt a multi-stage cascade refrigeration, and each stage must consume energy.
• the object of the present invention is to provide a new heatless refrigeration method and its circulation system, which does not emit heat to the external environment, and the cooling temperature can be arbitrarily set between normal temperature and deep cold temperature, and has high cooling efficiency.
• the technical solution of the present invention is as follows: A heatless refrigeration method and a circulation system thereof.
• the first-stage refrigeration uses existing various types of refrigeration technologies to provide original cooling capacity. It can be vapor compression refrigeration or dissipative refrigeration in phase change refrigeration.
• Adsorption refrigeration can be semiconductor refrigeration or magnetic refrigeration; it can be any single-stage refrigeration in the above refrigeration technology; it can also be a multi-stage cascade refrigeration composed of any of the above refrigeration technologies; Can be made up of various technology groups
• the system is a multi-stage multi-stage refrigeration cycle consisting of the first-stage refrigeration, any intermediate-stage refrigeration, and the final-stage refrigeration cycle.
• the first-stage refrigeration is used as the original refrigeration
• the final-stage refrigeration is used for external cooling.
• Any intermediate stage refrigeration is responsible for amplifying the original cooling capacity from 0, 1 to n stages.
• Any intermediate and final stage cooling methods are phase change and cold refrigeration cycle methods. They all use the lower level provided by the previous stage refrigeration.
• the cooling capacity of the temperature is used to condense the vapor generated by the phase change refrigeration in this stage, so that the refrigerant can return to the original phase state, and realize the phase change to the cold refrigeration cycle; the heat generated by the first stage refrigeration is changed from the next stage phase to cold refrigeration.
• the amount of cold absorption provided by the cycle reduces the difference between the cooling temperature of the first stage cooling and the temperature of the exhaust heat environment, so that the normal cooling of the first stage cooling is achieved; the cooling temperature of the first stage cooling, and the phase change of any intermediate stage cooling
• the vaporization temperature and the phase change vaporization temperature of the final refrigeration are gradually increased according to the connection order of each level.
• the first stage refrigeration production temperature is low, and the final refrigeration phase change vaporization temperature is high.
• the athermal refrigeration method and its circulation system according to the present invention are a new refrigeration method using a phase change to cool the refrigeration cycle.
• the refrigeration efficiency is high, and no heat is emitted to the outside.
• the cooling temperature can be between normal temperature and low temperature. Any time.
• Figure 1 is a schematic flow chart of a heatless refrigeration method and its circulation system.
• Fig. 2 is a flow diagram of the above system consisting of a first-stage refrigeration and a last-stage refrigeration cycle.
• Figure 3 is a schematic flow diagram of the above system consisting of first-stage refrigeration, intermediate -1 stage refrigeration to intermediate-n stage refrigeration, and last stage refrigeration cycle.
• the number of any intermediate refrigeration stages shown in the figure is 1, and the system is composed of a first stage refrigeration, an intermediate -1 stage refrigeration, and a final stage refrigeration cycle.
• the number of any intermediate-stage refrigeration stages shown in the figure is 0, and the system consists of a first-stage refrigeration and a last-stage refrigeration cycle.
• the number of any intermediate refrigeration stages shown in the figure is l ⁇ n.
• the system consists of the first stage refrigeration, the intermediate -1 stage refrigeration to the intermediate-n stage refrigeration, and the final stage refrigeration cycle.
• the phase change refrigerant working in the final refrigeration cycle is input to the external cooling and cooling evaporation section 1 through the medium transfer process 3, and the heat is evaporated from the cold place, and the phase change cooling and external cooling are performed.
• the saturated vapor produced by phase change refrigeration no longer implements the vapor compression refrigeration cycle according to the mechanical compression method applied by the existing refrigeration technology. Instead, the phase change is used to cool the refrigeration cycle, that is, the saturated vapor enters the saturated vapor in the direction of the arrow. Cooler condensation section 2.
• Evaporation section 1 from the previous stage phase change to the cold refrigeration cycle provides lower temperature cooling capacity to the condensation section 2 of the last stage refrigeration cycle.
• the process of saturated steam meeting condensation condensation is a process of absorbing and storing cold energy.
• the cold supply side transmits the cold energy to the saturated steam to make it a supercooled liquid or solid working medium.
• the actual cooling loss of the phase-change refrigeration cycle is much smaller than the refrigeration capacity obtained by vaporizing the phase-change refrigeration of the working medium in the phase-change refrigeration cycle.
• the subcooled working medium is used repeatedly. If the cooling capacity is lower than the saturation temperature to fully exchange heat with saturated steam, the cooling capacity loss is smaller. It can be known from this that the phase change and cold refrigeration cycle is a process of multiplying and multiplying the cooling capacity provided by the previous stage.
• phase change of any intermediate-stage and final-stage refrigeration in the cold refrigeration cycle is to absorb the liquid working fluid to vaporize it and release the latent heat of vaporization to cool it.
• the phase change of any intermediate stage and final stage refrigeration in the cold refrigeration cycle is to directly sublimate the solid working fluid and vaporize it into vapor, releasing the sublimation latent heat and cooling.
• the intermediate -1 stage phase change is a cold refrigeration cycle. Most of its working fluid enters the main evaporation section 4 through the working fluid transport process 6 and absorbs heat from the condensation section 2 to form saturated vapor. It automatically enters the condensation section in the direction of the arrow shown in the figure. 5.
• the lower-temperature cold condensing provided by the first-stage refrigeration production and cooling section 9; a small part of the working fluid enters the sub-evaporation section 8 through the working fluid transport process 7 and absorbs heat and vaporizes from the first-stage refrigeration production section 10 Saturated vapor is formed, and it enters the condensing section 5 in the direction of the arrow to condense, thereby completely completing the intermediate-1 stage phase change and cold refrigeration cycle.
• the amount of cooling produced by the evaporation section 4 is multiple or higher than the amount of cooling consumed by the condensation section 5.
• the number of arbitrary intermediate stages is zero.
• the final stage refrigeration is responsible for external refrigeration and cooling. Most of its refrigerants pass through the refrigerant transport process 3 and enter the main evaporation section 1. It absorbs heat from the cold place to vaporize and cool the external heat, and then enters the condensation section 2 in the direction of the arrow. Utilizing the more
• Correction page (Article 91) Low-temperature cold condensing; a small part of the refrigerating refrigerant passes through the shield transfer process 7, enters the sub-evaporation section 8, absorbs heat and vaporizes from the heat-generating section 10 of the first-stage refrigeration, and then enters the condensation section 2 in the direction of the arrow to condense and restore the phase state. This completes the final phase change to a cold refrigeration cycle, and the first stage refrigeration is responsible for providing the original cooling capacity.
• the first stage refrigeration and the middle stage-1 stage to the middle stage-n phase change with a cold refrigeration cycle, and the last stage phase change with a cold refrigeration cycle N + 2 stage athermal refrigeration cycle system.
• the first-stage refrigeration provides the original cooling capacity.
• the intermediate-stage 1 to intermediate-n-stage cooling is responsible for increasing the original cooling capacity step by step.
• the final-stage cooling is responsible for external cooling.
• the final refrigerating working fluid passes the working fluid transport process 3, enters the evaporation section 1 and is vaporized and cooled, and returns to the condensation section 2 in the direction of the arrow to condense.
• Intermediate-n-stage refrigerating working medium passes through the working medium conveying process 6n, enters the evaporation section 4n, absorbs heat and vaporizes from the condensation section 2, and then returns to the condensation section 5n in the direction of the arrow to condense.
• the same two-level relationship is set between the intermediate-1 stage and the intermediate-n refrigeration, that is, the phase change of the previous stage is the evaporation section of the cold refrigeration cycle as
• the second-stage phase change provides sufficient cooling capacity in the condensation section of the cold refrigeration cycle.
• the relationship between the intermediate -1 stage cooling and the first stage cooling is exactly the same as in Figure 1.
• the heat generated by the first-stage refrigeration is absorbed by the second-stage phase change and the cooling capacity provided by the cold refrigeration cycle.
• the heat generated by the first-stage refrigeration is directly discharged to the second-stage refrigeration working medium, so that it absorbs the heat and generates a phase. change.
• the heat generated by the first-stage refrigeration is absorbed by the second-stage phase change and the cooling capacity provided by the cold refrigeration cycle, which indirectly discharges the heat generated by the first-stage refrigeration to the second-stage refrigeration refrigerant, so that the second-stage refrigeration workers
• the mass passes through the intermediate medium and absorbs the heat emitted by the first-stage refrigeration to produce a phase change.
• the first-stage refrigeration is the existing refrigeration technology. Electric or mechanical energy enters the first-stage refrigeration electrical device 11, so that the cooling section 9 generates cold, and the heat generation section 10 generates heat. Because the secondary stage phase change uses the secondary refrigeration section 8 of the refrigeration cycle to completely absorb the heat from the heat generation section 10, the difference between the ambient temperature of the cold section and the heat generation section of the first stage refrigeration can be reduced to meet the realization of the first stage The temperature difference requirement of the best working condition of the refrigeration, so that the lower the first rate is achieved, the actual technical obstacle that even the refrigeration cannot be achieved.
• Any intermediate-stage and final-stage phase-change cooling refrigeration cycle uses the lower-temperature cooling capacity provided by the previous-stage refrigeration to condense the vapor generated by this phase-change refrigeration, that is, the lower-stage cooling provided by the previous-stage refrigeration is used.
• the cooling capacity of the temperature directly condenses the steam of this stage into a subcooled working medium.
• Any intermediate-stage and final-stage phase-change cooling refrigeration cycle uses the lower-temperature cooling capacity provided by the previous-stage refrigeration to condense the vapor generated by this phase-change refrigeration, that is, the lower-stage cooling provided by the previous-stage refrigeration is used.
• the cooling capacity of the temperature first condenses the steam of this stage into a subcooled working medium, and then uses the sensible cooling carried by the supercooled working medium to decondensate the steam, and reuses the cooling capacity of the lower temperature provided by the previous stage cooling multiple times .
• the temperature of the cooling section 9 is lower than the temperature of the evaporation section 4, and the temperature of the evaporation section 4 is lower than the temperature of the evaporation section 1.
• the temperature difference between the evaporation sections 9, 4, and 1 should be set according to the requirements of the required condensing saturated steam working conditions.
• the temperature of the last-stage evaporation section 1 for external cooling and cooling can be arbitrarily set between normal temperature and cryogenic low temperature according to the cooling requirements.
• the refrigeration cycles below the first-stage refrigeration are all Working conditions that consume heat, so the heatless refrigeration method and its circulation system shown in the figure do not emit any heat to the outside environment. It only produces cold and does not produce heat. Beneficial effect
• the first-stage refrigeration achieves normal-efficiency cooling, or even exceeds the normal-efficiency cooling level. Its refrigeration capacity is cooled by the intermediate-stage phase change in a cold refrigeration cycle. Multiplier and high-amplification, in order to achieve the final stage phase change of external cooling of any scale to provide sufficient condensing cooling capacity.
• the phase change at the other stages is a cold refrigeration cycle. Other energy consumption.
• the energy consumed by the first-stage refrigeration has achieved normal refrigeration efficiency, and its efficiency has been multi-stage expanded, so that the present invention can have extremely high refrigeration efficiency.
• the athermal refrigeration method and the circulation system of the present invention save refrigeration electric energy, reduce the cost of refrigeration and cooling, and provide technical conditions for expanding the production scale and capacity of refrigeration and cooling.
• the application of the present invention in principle, industry and commerce is included in the scope of the claims of the present invention, and any improved technology based on this is taken from the claims of the present invention.

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• Engineering & Computer Science (AREA)
• Physics & Mathematics (AREA)
• Mechanical Engineering (AREA)
• Thermal Sciences (AREA)
• General Engineering & Computer Science (AREA)
• Devices That Are Associated With Refrigeration Equipment (AREA)

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Citations (3)

• 1997
  • 1997-10-27 CN CN 97119922 patent/CN1178313A/zh active Pending
• 1998
  • 1998-10-23 DE DE19882754T patent/DE19882754T1/de not_active Withdrawn
  • 1998-10-23 AU AU96193/98A patent/AU9619398A/en not_active Abandoned
  • 1998-10-23 JP JP2000518238A patent/JP2001521137A/ja active Pending
  • 1998-10-23 WO PCT/CN1998/000255 patent/WO1999022185A1/zh active Application Filing

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