WO2020207109A1 - 一种地冷式换热方法、换热系统、空调器及安装方法 - Google Patents

一种地冷式换热方法、换热系统、空调器及安装方法 Download PDF

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Publication number
WO2020207109A1
WO2020207109A1 PCT/CN2020/074736 CN2020074736W WO2020207109A1 WO 2020207109 A1 WO2020207109 A1 WO 2020207109A1 CN 2020074736 W CN2020074736 W CN 2020074736W WO 2020207109 A1 WO2020207109 A1 WO 2020207109A1
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Prior art keywords
ground
pipeline
heat exchange
air conditioner
compressor
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PCT/CN2020/074736
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English (en)
French (fr)
Inventor
张振富
王若峰
乔光宝
汪亚东
Original Assignee
青岛海尔空调器有限总公司
海尔智家股份有限公司
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Publication of WO2020207109A1 publication Critical patent/WO2020207109A1/zh

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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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00—Air-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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
    • F24T10/00—Geothermal collectors
    • F24T10/10—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground
    • F24T10/13—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes
    • F24T10/15—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes using bent tubes; using tubes assembled with connectors or with return headers
    • 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
    • F25B39/00—Evaporators; Condensers
    • F25B39/04—Condensers
    • 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
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/40—Geothermal heat-pumps
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/10—Geothermal energy

Definitions

  • the present invention relates to the technical field of air conditioners, and in particular to a ground-cooled heat exchange method, heat exchange system, air conditioner and installation method.
  • the heat exchange system in the existing air conditioner generally consists of a compressor, a condenser, a throttling device, and an evaporator connected in sequence.
  • the refrigeration heat exchange process is: the compressor absorbs and compresses the refrigerant gas evaporated by the evaporator, and while increasing the pressure and temperature, it provides the circulating power for the refrigerant; the high temperature and high pressure refrigerant gas from the compressor passes through the condenser.
  • the heat is discharged to the outside under the action of the wind blade, and it is condensed into a medium-temperature and high-pressure refrigerant liquid; the refrigerant liquid from the condenser is reduced in pressure through the throttling device and the flow is adjusted to an appropriate amount, and then supplied to the evaporator; The low-pressure refrigerant liquid absorbs the heat in the indoor air in the evaporator and evaporates, thereby adjusting the indoor temperature, so as to achieve the purpose of refrigeration.
  • the existing air conditioners generally include an indoor unit part and an outdoor unit part, resulting in a large overall size.
  • the outdoor unit is generally installed outdoors, ordinary consumers cannot install it by themselves, and require professional operators to install it, resulting in increased installation costs.
  • the present invention provides a ground-cooled heat exchange method that uses the natural low temperature of the ground to exchange heat for the gaseous refrigerant from the compressor.
  • the entire heat exchange process greatly reduces energy consumption and heat exchange efficiency. high.
  • the present invention adopts the following technical solutions to achieve:
  • a ground-cooled heat exchange method A gaseous refrigerant enters a ground-cooling pipeline at least partially underground from a compressor, and the gaseous refrigerant is transformed into a liquid refrigerant in the ground-cooling pipeline.
  • the liquid refrigerant flows through the throttling device and the evaporator in sequence.
  • the buried depth of the ground cooling pipeline under the ground is 2-5m.
  • the present invention also proposes a ground-cooled heat exchange system.
  • a ground-cooling pipeline located underground By setting a ground-cooling pipeline located underground, the natural low temperature of the ground is used to exchange heat for the gaseous refrigerant from the compressor.
  • the entire heat exchange process greatly reduces energy consumption. , And the heat exchange efficiency is high; and the outdoor unit is omitted, which makes the whole unit smaller and convenient to install.
  • a ground-cooling heat exchange system includes: a compressor, a ground-cooling pipeline, a throttling device, and an evaporator connected in sequence; the ground-cooling pipeline is at least partially located underground, and the ground-cooling pipe One end of the circuit is directly or indirectly connected with the air outlet of the compressor, and the other end of the ground cooling pipeline is directly or indirectly connected with the liquid inlet of the throttling device.
  • the buried depth of the ground cooling pipeline in the ground is 2-5m.
  • the ground cooling pipeline includes a main pipeline, and a first branch pipeline and a second branch pipeline arranged at both ends of the main pipeline.
  • the main pipeline extends a distance in a horizontal direction underground, and the first branch pipeline.
  • the end of the second branch pipe is directly or indirectly connected to the air outlet of the compressor, and the end of the second branch pipeline is directly or indirectly connected to the liquid inlet of the evaporator.
  • first branch pipeline is connected with a first auxiliary pipe
  • second branch pipeline is connected with a second auxiliary pipe
  • the first auxiliary pipe is connected with the air outlet of the compressor
  • the second auxiliary pipe The pipe is connected with the liquid inlet of the throttling device.
  • the outer periphery of the second branch pipeline and the second auxiliary pipe are respectively provided with thermal insulation layers.
  • two ends of the ground cooling pipeline are respectively provided with regulating valves.
  • the present invention also provides a ground-cooled air conditioner, including an air conditioner main body and the above-mentioned ground-cooled heat exchange system; the air-conditioner main body includes a shell, and the compressor in the ground-cooled heat exchange system, The throttling device and the evaporator are both arranged in the casing.
  • the present invention also provides an installation method of the above-mentioned ground-cooled air conditioner.
  • the installation method includes: burying the ground-cooled pipeline in the ground-cooled air conditioner at least partially underground, and the ground-cooled pipe The two ends of the road are respectively exposed to the ground; install the air conditioner main body in the ground-cooled air conditioner; connect one end of the ground-cooled pipeline directly or indirectly with the air outlet of the compressor in the air conditioner main body Connecting, connecting the other end of the ground cooling pipeline directly or indirectly with the liquid inlet of the throttling device in the main body of the air conditioner.
  • the present invention provides a ground-cooled heat exchange method, a heat exchange system, an air conditioner, and an installation method.
  • the heat exchange system includes a compressor, a ground-cooled pipeline, a throttling device, and an evaporator connected by pipelines in sequence; the ground-cooled pipeline At least partly located underground, one end of the ground cooling pipeline is directly or indirectly connected with the air outlet of the compressor, and the other end of the ground cooling pipeline is directly or indirectly connected with the liquid inlet of the throttling device.
  • the gaseous refrigerant enters the ground cooling pipeline at least partially underground from the compressor, the gaseous refrigerant is transformed into a liquid refrigerant in the ground cooling pipeline, and the liquid refrigerant after the phase change flows through the throttling device and the evaporator in sequence.
  • the natural low temperature of the ground is used to exchange the heat of the gaseous refrigerant from the compressor, which replaces the heat exchange process of the condenser and the condensing fan in the prior art, greatly reducing energy consumption
  • the underground temperature is low, much lower than the condensation temperature of the refrigerant, and the heat exchange efficiency is high; at the same time, the outdoor unit is omitted, which makes the whole unit smaller and easy to install.
  • Fig. 1 is a schematic diagram of an embodiment of a ground-cooled heat exchange system according to the present invention
  • Figure 2 is a schematic structural diagram of an embodiment of a ground-cooled air conditioner according to the present invention.
  • FIG. 3 is a schematic structural diagram of an embodiment of the ground-cooled air conditioner of the present invention after installation
  • Fig. 4 is a schematic structural diagram of an embodiment of a ground-cooled air conditioner system of the present invention.
  • 10-air conditioner body 11-compressor, 12-ground cooling pipeline, 121-main pipeline, 1221-first branch pipeline, 1222-second branch pipeline, 13-throttling device, 14-evaporator, 15-shell, 151-first interface, 152-second interface, 161-first auxiliary pipe, 162-second auxiliary pipe, 17-regulating valve, 20-underground, 30-wall, 40-window.
  • the terms “upper”, “lower”, “left”, “right”, “vertical”, “horizontal”, “inner”, “outer”, etc. indicate directions or positions The term of relationship is based on the direction or position relationship shown in the drawings, which is only for ease of description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as Restrictions on the invention.
  • the terms “first” and “second” are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance.
  • the present invention discloses a ground-cooled heat exchange system and a heat exchange method.
  • the heat exchange system includes a compressor 11, a ground-cooling pipeline 12, a throttling device 13, and an evaporator 14 connected by pipelines in sequence.
  • the ground cooling pipeline 12 is at least partially underground.
  • One end of the ground cooling pipeline 12 is directly or indirectly connected to the air outlet of the compressor 11, and the other end of the ground cooling pipeline 2 is directly or indirectly connected to the liquid inlet of the throttling device 13 connection.
  • the heat exchange process is as follows: the compressor 11 absorbs and compresses the gaseous refrigerant evaporated by the evaporator 14, while increasing the pressure and temperature, it provides circulation power to the refrigerant; the high temperature and high pressure gaseous refrigerant from the compressor 11 flows into the ground cooling In the pipeline 12, since the underground temperature continues to decrease as the depth increases, as the high-temperature and high-pressure gaseous refrigerant continues to flow to the deep underground along the ground-cooling pipeline 12, the high-temperature gaseous refrigerant and the ground The low temperature underneath conducts heat exchange.
  • the high-temperature and high-pressure gaseous refrigerant will undergo a phase change and transform into a medium-temperature and high-pressure liquid refrigerant; the medium-temperature and high-pressure liquid refrigerant after the phase change is depressurized by the throttling device 13 and the flow is adjusted to an appropriate amount Then, it is supplied to the evaporator 14; the liquid low-pressure refrigerant from the throttling device 13 absorbs the heat in the indoor air and evaporates in the evaporator 14, thereby adjusting the indoor temperature to achieve the purpose of cooling.
  • the temperature of the refrigerant flowing out of the air outlet of the compressor 11 is generally about 70°C, and the condensation temperature at which the refrigerant changes from a gaseous condensation phase to a liquid state is generally about 45°C.
  • the surface temperature is generally lower than 40°C.
  • the surface temperature of most areas is set at 35°C during the hot summer as an example.
  • the ground cooling pipeline 12 is buried 2m deep underground, and the ground cooling pipe
  • the temperature difference between the temperature at the road 12 and the temperature at the surface is 10°C, and the temperature of the ground-cooling pipeline 12 at 2m can be 25°C;
  • the ground-cooling pipeline 12 is buried 3m underground, and the ground-cooling pipeline 2
  • the temperature difference between the temperature at the ground and the temperature at the surface is 15°C, and the temperature of the ground cooling pipeline 12 at 3m can be 20°C;
  • the ground cooling pipeline 12 is buried 5m underground, and the ground cooling pipeline 12
  • the temperature difference between the temperature and the temperature on the ground is 25°C, and the temperature of the ground cooling pipeline 12 at 5m can be 10°C. It can be seen that the ground cooling pipeline 12 does not need to be buried deep underground to meet the temperature requirements of the refrigerant condensation phase change, and the underground temperature is much lower than the refrigerant condensation phase change temperature, which is greatly improved Increased heat transfer efficiency.
  • the ground cooling pipeline 12 is at least partially buried 2-5 m underground.
  • the depth is not very deep, and it can meet the heat exchange requirements and facilitate installation.
  • the ground cooling pipeline 12 will extend a predetermined distance in the horizontal direction at least partly at a position 2-5 m below the ground to extend the stagnation time of the refrigerant in the deep ground and further improve the heat exchange effect.
  • the cooling process of the high-temperature and high-pressure refrigerant flowing out of the air outlet of the compressor 11 makes full use of the natural low temperature of the ground, and the process of cold and heat exchange in this place replaces the heat exchange process of the condenser and the condensing fan in the prior art, so that the entire heat exchange process
  • the energy consumption is greatly reduced, and the underground temperature is low, far lower than the condensation temperature of the refrigerant, and the heat exchange efficiency is high.
  • the outdoor unit in the existing air conditioner can be omitted, making the overall size smaller; and there is no need to install the outdoor unit.
  • the road 12 can be partially connected to the indoor unit, which can reduce installation costs and is convenient for consumers to use.
  • the indoor unit here refers to the floor-cooled air conditioner main body 10 disclosed in this embodiment.
  • this embodiment takes the air conditioner main body 10 of a window air conditioner as an example, which includes a shell The body 15 and the heat exchange system composed of the compressor 11, the ground cooling pipeline 12, the throttling device 13 and the evaporator 14 (not marked in Figures 2 and 3), wherein the ground cooling pipeline 12 is at least partially located under the ground and compresses The machine 11, the throttling device 13 and the evaporator 14 are arranged inside the casing 15.
  • ground cooling pipeline 12 is directly or indirectly connected to the air outlet of the compressor 11, and the other end of the ground cooling pipeline 12 is directly or indirectly connected to the liquid inlet of the throttling device 13.
  • the high-temperature and high-pressure gaseous refrigerant from the compressor 11 flows into the underground cooling pipeline 12, and uses the low temperature of the ground to exchange heat for the high-temperature and high-pressure gaseous refrigerant.
  • the high-temperature and high-pressure gaseous refrigerant undergoes a phase change and transforms into a medium-temperature and high-pressure liquid refrigerant.
  • the medium-temperature and high-pressure liquid refrigerant flows into the throttling device 13 to reduce the pressure and adjust to an appropriate amount before flowing into the evaporator 14 ;
  • the low-pressure liquid refrigerant from the throttling device 13 absorbs the heat in the indoor air and evaporates in the evaporator 14, thereby adjusting the indoor temperature, thereby achieving the purpose of refrigeration.
  • the ground cooling pipeline 12 includes a main pipeline 121, a first branch pipeline 1221, and a second branch pipeline 1222.
  • the first branch pipeline 1221 and the second branch pipeline 1222 are respectively connected to the main pipeline 121, and one end of the first branch pipeline 1221 It is directly or indirectly connected to the air outlet of the compressor 11, and one end of the second branch pipeline 1222 is directly or indirectly connected to the liquid inlet of the throttling device 13.
  • Both the first branch pipeline 1221 and the second branch pipeline 1222 extend upward, and the main pipeline 121 extends a certain distance in the horizontal direction deep in the ground to extend the stagnation time of the refrigerant in the ground and improve the heat exchange effect.
  • the second branch pipe 1222 Set up insulation layer, such as insulation foam.
  • the housing 15 is provided with a first interface 151 and a second interface 152, the first interface 151 is connected to the air outlet of the compressor 11, the second interface 152 is connected to the liquid inlet of the throttling device 13, and the first branch pipeline 1221 One end is connected to the first interface 151, and one end of the second branch pipeline 122 is connected to the second interface 152.
  • the connection between the first pipe 1221 and the first interface 151, and the connection between the second pipe 1222 and the second interface 152 can be connected by means of quick connectors, which is convenient for consumers to control the window air conditioner at home. Install quickly.
  • first branch pipeline 1221 is provided with a first auxiliary pipe 161, and one end of the second branch pipeline 1222 is provided with a second auxiliary pipe 162.
  • the first auxiliary pipe 161 is connected to the first interface 151
  • the second auxiliary pipe 162 is connected to the second The interface 152 is connected.
  • the first auxiliary pipe 161 and the second auxiliary pipe 162 have a variety of length and size specifications. In actual installation, the distance between the first interface 151 and the end of the first branch pipe 1221, and the second interface 152 and the second branch pipe For the distance between the ends of the path 1222, the first auxiliary pipe 161 and the second auxiliary pipe 162 of suitable length can be selected, which further facilitates the installation of the air conditioner main body 10.
  • an insulation layer such as insulation foam, is provided on the periphery of the second auxiliary tube 162.
  • the end of the first branch pipeline 1221 and the end of the second branch pipeline 1222 are respectively provided with a regulating valve 17. After the local cooling pipeline 12 is installed in place with the compressor 11 and the throttling device 13, the regulating valve 17 is opened, and the whole change The thermal system is unblocked.
  • the installation steps of the ground-cooled air conditioner are:
  • the ground cooling pipeline 12 is at least partially buried under the ground, where the main pipeline 121 is located at the lowest point, the main pipeline 121 is located 2-5m underground, and extends a distance in the horizontal direction.
  • the first branch pipeline 1221 and the second branch pipeline 1222 Extending upwards respectively, the ends of the first branch pipeline 1221 and the end of the second branch pipeline 1222 are respectively exposed on the ground surface for users to connect and use;
  • One end of the second branch pipeline 1222 is directly or indirectly connected to the liquid inlet of the throttling device 13.
  • the lower parts of the first branch pipeline 1221 and the second branch pipeline 1222 are both located underground and connected to the main pipeline 121 ,
  • the upper part of the first branch pipeline 1221 and the second branch pipeline 1222 are located inside the wall 30, and the upper end of the first branch pipeline 1221 and the upper end of the second branch pipeline 122 respectively extend from the wall 30 for Users connect to use.
  • the air conditioner main body 10 In the step "install the air conditioner main body 10 and fix the air conditioner main body 10 to a predetermined position", for a window type air conditioner, the air conditioner main body 10 is fixedly installed at the window 40; for a vertical air conditioner, the air conditioner The main body 10 is fixedly placed somewhere indoors; for a through-wall air conditioner, the main body 10 of the air conditioner is fixedly installed at a predetermined opening of the wall.
  • the first auxiliary pipe 161 is connected to the end of the first branch pipe 1221, and the first auxiliary pipe 161 is connected to the air-conditioning casing
  • the first interface 151 on the body 15 is connected, wherein the first interface 151 is connected to the air outlet of the compressor 11.
  • the second auxiliary pipe 162 is connected to the end of the second branch pipe 122, and the second auxiliary pipe 162 is connected to the The second interface 152 on the air conditioner housing 15 is connected, wherein the second interface 152 is connected with the liquid inlet of the throttle device 13.
  • the present invention also discloses a ground-cooled air conditioner system, referring to FIG. 4, which includes a ground-cooling pipeline 12 at least partially located underground and a plurality of air conditioner main bodies 10 disclosed in the above-mentioned embodiments. It includes a casing 15 in which a compressor 11, a throttling device 13 and an evaporator 14 are arranged.
  • the ground cooling pipeline 12 includes a main pipeline 121 located underground and a plurality of branch pipeline groups connected to the main pipeline 121.
  • Each branch pipeline group corresponds to an air conditioner main body 10, and each branch pipeline group includes a first branch pipeline 1221 and The second branch pipeline 1222, one end of the first branch pipeline 1221 is directly or indirectly connected to the outlet of the compressor 11 of the corresponding air conditioner body 10, and one end of the second branch pipeline 1222 is directly or indirectly connected to the corresponding air conditioner body 10
  • the liquid inlet of the throttling device 13 is connected.
  • the high-temperature and high-pressure gaseous refrigerant from the compressor 11 flows into the main pipe 121 located underground through the first branch pipe 1221, and uses the low temperature of the underground to exchange heat for the high-temperature and high-pressure gaseous refrigerant.
  • the high-temperature and high-pressure gaseous refrigerant undergoes a phase change and turns into a medium-temperature and high-pressure liquid refrigerant.
  • the medium-temperature and high-pressure liquid refrigerant flows into the throttling device through the second branch pipe 1222 for pressure reduction and After being adjusted to an appropriate amount, it flows into the evaporator; the low-pressure liquid refrigerant from the throttling device 13 absorbs the heat in the indoor air in the evaporator 14 and evaporates, thereby adjusting the indoor temperature to achieve the purpose of cooling.
  • each first branch pipe 1221 and the end of each second branch pipe 1222 are respectively provided with a regulating valve 17 through which the flow rate of the refrigerant circulating in each air conditioner body 10 is adjusted to make the flow
  • the flow rate of the refrigerant in the ground cooling pipeline 12 is equal to the flow rate of the refrigerant flowing out of the ground cooling pipeline 12, which further ensures the stability and heat exchange effect of the entire heat exchange system.
  • the installation method of the ground-cooled air conditioner system is as follows:
  • the ground cooling pipeline 12 is at least partially buried under the ground, where the main pipeline 121 is located at the lowest point, the main pipeline 121 is located 2-5m underground, and extends a distance in the horizontal direction.
  • the first branch pipeline 1221 and the second branch pipeline 1222 Extending upwards respectively, the ends of the first branch pipeline 1221 and the end of the second branch pipeline 1222 are respectively exposed on the ground surface for users to connect and use;
  • One end of the second branch pipeline 1222 is directly or indirectly connected to the liquid inlet of the throttling device 13.
  • the lower parts of the first branch pipeline 1221 and the second branch pipeline 1222 are both located underground and connected to the main pipeline 121 ,
  • the upper part of the first branch pipeline 1221 and the second branch pipeline 1222 are located inside the wall 30, the end of the first branch pipeline 1221 and the end of the second branch pipeline 1222 respectively extend from the wall 30, for Users connect to use.
  • the air conditioner main body 10 In the step "install the air conditioner main body 10 and fix the air conditioner main body 10 to a predetermined position", for a window type air conditioner, the air conditioner main body 10 is fixedly installed at the window; for a vertical air conditioner, the air conditioner main body 10 is fixedly placed somewhere indoors; for through-wall air conditioners, the air conditioner body 10 is fixedly installed at a predetermined opening of the wall.
  • the first auxiliary pipe 61 is connected to the end of the first branch pipe 1221, and the first auxiliary pipe 161 is connected to the air conditioning casing
  • the first interface 151 on the body 15 is connected, wherein the first interface 151 is connected to the air outlet of the compressor 11.
  • the second auxiliary pipe 162 is connected to the end of the second branch pipe 1222, and the second auxiliary pipe 162 is connected to the The second interface 152 on the air conditioner housing 15 is connected, wherein the second interface 152 is connected with the liquid inlet of the throttle device 13.
  • the first auxiliary pipe 161 is connected to the interface of the first pipe 1221 on the wall 30, and The second auxiliary pipe 162 is connected to the interface of the second branch pipeline 1222 on the wall 30, the first auxiliary pipe 161 is connected to the first interface 151 on the air conditioner housing 15, and the second auxiliary pipe 162 is connected to the air conditioner housing 15
  • the second interface 152 can be connected.

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Abstract

一种地冷式换热系统及换热方法，该换热系统包括依次管路连接的压缩机（11）、地冷管路（12）、节流装置（13）及蒸发器（14），地冷管路（12）至少部分位于地下，地冷管路（12）的一端直接或间接与压缩机（11）的出气口连接，地冷管路（12）的另一端直接或间接与节流装置（13）的进液口连接。另外还涉及一种包括该地冷式换热系统的空调器及安装方法。

Description

一种地冷式换热方法、换热系统、空调器及安装方法 技术领域
本发明涉及空调器技术领域，尤其涉及一种地冷式换热方法、换热系统、空调器及安装方法。
背景技术
现有空调器中的换热系统一般由依次连接的压缩机、冷凝器、节流装置及蒸发器组成。制冷换热过程为：压缩机将蒸发器蒸发的制冷剂气体吸收压缩，在提高压力和温度的同时，给制冷剂提供循环的动力；从压缩机出来的高温高压制冷剂气体，通过冷凝器在风叶作用下向外排放热量，冷凝为中温高压的制冷剂液体；从冷凝器出来的制冷剂液体通过节流装置降压并将流量调节到适量后，供给蒸发器；从节流装置出来的低压制冷剂液体在蒸发器内吸收室内空气中的热量并蒸发，由此调节室内温度，从而达到制冷的目的。
随着人们生活水平的不断提高，空调越来越普及，但是由于空调的能耗很大，空调的大量使用增加了能源消耗。如何提供一种既能够满足人们生活的需求，又能够降低能源消耗的换热系统，是各研发厂家一直致力的研发方向。
同时，现有的空调器一般都包括室内机部分和室外机部分，导致整机尺寸偏大。并且，由于室外机一般安装于室外，普通消费者无法自行安装，需要专业作业人员的安装，导致安装成本增加。
本背景技术所公开的上述信息仅仅用于增加对本申请背景技术的理解，因此，其可能包括不构成本领域普通技术人员已知的现有技术。
发明内容
本发明为了解决上述技术问题，提供一种地冷式换热方法，利用地底的自然低温对从压缩机出来的气态制冷剂进行换热，整个换热过程大大降低了能源消耗、且换热效率高。
为实现上述发明目的，本发明采用下述技术方案予以实现：
一种地冷式换热方法，气态制冷剂由压缩机进入至少部分位于地下的地冷管路，所述气态制冷剂在所述地冷管路中相变为液态制冷剂，相变后的所述液态制冷剂依次流经节流装置和蒸发器。
进一步的，所述地冷管路在地底下的埋入深度为2-5m。
本发明还提出一种地冷式换热系统，通过设置位于地下的地冷管路，利用地底的自然低温对从压缩机出来的气态制冷剂进行换热，整个换热过程大大降低了能源消耗、且换热效率高；并且省略了室外机部分，使得整机尺寸变小，安装方便。
具体的，一种地冷式换热系统，包括：依次管路连接的压缩机、地冷管路、节流装置及蒸发器；所述地冷管路至少部分位于地下，所述地冷管路的一端直接或间接与所述压缩机的出气口连接，所述地冷管路的另一端直接或间接与所述节流装置的进液口连接。
进一步的，所述地冷管路在地下的埋入深度为2-5m。
进一步的，所述地冷管路包括主管路和设于所述主管路两端的第一支管路、第二支管路，所述主管路在地下沿水平方向延伸一段距离，所述第一支管路的端部直接或间接与所述压缩机的出气口连接，所述第二支管路的端部直接或间接与所述蒸发器的进液口连接。
进一步的，所述第一支管路连接有第一辅助管，所述第二支管路连接有第二辅助管，所述第一辅助管与所述压缩机的出气口连接，所述第二辅助管与所述节流装置的进液口连接。
进一步的，所述第二支管路和所述第二辅助管的外围均分别设有保温层。
进一步的，所述地冷管路的两端分别设有调节阀。
本发明还提出一种地冷式空调器，包括空调器主体和如上所述的地冷式换热系统；所述空调器主体包括壳体，所述地冷式换热系统中的压缩机、节流装置及蒸发器均设于所述壳体内。
本发明还提出一种如上所述的地冷式空调器的安装方法，安装方法包括：将所述地冷式空调器中的所述地冷管路至少部分埋于地下，所述地冷管路的两端分别外露于地表；安装所述地冷式空调器中的所述空调器主体；将所述地冷管路的一端直接或间接与所述空调器主体中的压缩机的出气口连接，将所述地冷管路的另一端直接或间接与所述空调器主体中的节流装置的进液口连接。
与现有技术相比，本发明的优点和积极效果是：
本发明提出一种地冷式换热方法、换热系统、空调器及安装方法，换热 系统包括依次管路连接的压缩机、地冷管路、节流装置及蒸发器；地冷管路至少部分位于地下，地冷管路的一端直接或间接与压缩机的出气口连接，地冷管路的另一端直接或间接与节流装置的进液口连接。气态制冷剂由压缩机进入至少部分位于地下的地冷管路，气态制冷剂在地冷管路中相变为液态制冷剂，相变后的液态制冷剂依次流经节流装置和蒸发器。通过设置位于地下的地冷管路，利用地底的自然低温对从压缩机出来的气态制冷剂进行换热，取代了现有技术中冷凝器和冷凝风扇的换热过程，大大降低了能源消耗、且地底温度较低、远远低于制冷剂的冷凝温度，换热效率高；与此同时，省略了室外机部分，使得整机尺寸变小，安装方便。
结合附图阅读本发明的具体实施方式后，本发明的其他特点和优点将变得更加清楚。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍，显而易见地，下面描述中的附图是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为本发明地冷式换热系统一个实施例的原理示意图；
图2为本发明地冷式空调器一个实施例的结构示意图；
图3为本发明地冷式空调器安装后一个实施例的结构示意图；
图4为本发明地冷式空调器系统一个实施例的结构示意图。
其中，10-空调器主体，11-压缩机，12-地冷管路，121-主管路，1221-第一支管路，1222-第二支管路，13-节流装置，14-蒸发器，15-壳体，151-第一接口，152-第二接口，161-第一辅助管，162-第二辅助管，17-调节阀，20-地底，30-墙体，40-窗口。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
需要说明的是，在本发明的描述中，术语“上”、“下”、“左”、“右”、“竖”、“横”、“内”、“外”等指示的方向或位置关系的术语是基于附图所示的方向或位置关系，这仅仅是为了便于描述，而不是指示或暗示所述装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性。
本发明公开一种地冷式换热系统及换热方法，参照图1，该换热系统包括依次管路连接的压缩机11、地冷管路12、节流装置13及蒸发器14，其中地冷管路12至少部分位于地底下，地冷管路12的一端直接或间接与压缩机11的出气口连接，地冷管路2的另一端直接或间接与节流装置13的进液口连接。换热过程为：压缩机11将蒸发器14蒸发的气态制冷剂吸收压缩，在提高压力和温度的同时，给制冷剂提供循环的动力；从压缩机11出来的高温高压气态制冷剂流入地冷管路12内，由于地底下的温度随着深度的增加而不断下降，随着高温高压气态制冷剂在沿着地冷管路12不断向地底深处流动的过程中，高温的气态制冷剂与地底下的低温进行换热，高温高压的气态制冷剂会产生相变，转变为中温高压的液态制冷剂；相变后的中温高压的液态制冷剂通过节流装置13降压并将流量调节到适量后，供给蒸发器14；从节流装置13出来的液态低压制冷剂在蒸发器14内吸收室内空气中的热量并蒸发，由此调节室内温度，从而达到制冷的目的。
从压缩机11的出气口处流出的制冷剂的温度一般为70℃左右，制冷剂由气态冷凝相变为液态的冷凝温度一般为45℃左右。就大部分地区而言，地表温度一般都低于40℃，在此按照将夏天炎热时大部分地区的地表温度定为35℃为例，地冷管路12深埋于地下2m，地冷管路12处的温度与地表处的温度之间的温差即为10℃，2m处地冷管路12的温度即可为25℃；地冷管路12深埋于地下3m，地冷管路2处的温度与地表处的温度之间的温差即为15℃，3m处地冷管路12的温度即可为20℃；地冷管路12深埋于地下5m，地冷管路12处的温度与地表处的温度之间的温差即为25℃，5m处地冷管路12的温度即可为10℃。由此可见，地冷管路12无需埋入地底下很深的深度，即可满足制冷剂冷凝相变的温度要求，并且地底下的温度远远低于制冷剂冷凝相变的温度，大大提高了换热效率。
本实施例中将地冷管路12至少部分深埋于地下2-5m，深度既不是很深， 又能够满足换热要求，便于安装。并且，地冷管路12至少部分在地底下2-5m的位置处会沿水平方向延伸一预设距离，延长制冷剂在地底深处的停滞时间，进一步提高换热效果。
从压缩机11出气口流出的高温高压制冷剂的降温过程充分利用地底的自然低温，将此地冷换热的过程代替现有技术中冷凝器和冷凝风扇的换热的过程，使得整个换热过程大大降低了能源消耗，且地底温度较低、远远低于制冷剂的冷凝温度，换热效率高。与此同时，由于省略了冷凝器和冷凝风扇，即可省略现有空调器中的室外机部分，使得整机尺寸变小；并且无需再进行室外机部分的安装，消费者自行将地冷管路12与室内机部分连接即可，可以降低安装费用、便于消费者使用。此处室内机部分即指本实施例所公开的地冷式空调器主体10。
基于地冷式换热系统和换热方法，本发明还公开一种地冷式空调器，参照图2和图3，本实施例以窗式空调器的空调器主体10为例，其包括壳体15及由压缩机11、地冷管路12、节流装置13和蒸发器14(图2和3中未标示)组成的换热系统，其中，地冷管路12至少部分位于地底，压缩机11、节流装置13及蒸发器14设于壳体15内部。地冷管路12的一端直接或间接与压缩机11的出气口连接，地冷管路12的另一端直接或间接与节流装置13的进液口连接。从压缩机11出来的高温高压的气态制冷剂流入埋于地下的地冷管路12内，利用地底的低温对高温高压的气态制冷剂进行换热，随着气态制冷剂在地底下不断向下流动，高温高压的气态制冷剂发生相变，转变为中温高压的液态制冷剂，相变后的中温高压的液态制冷剂再流入节流装置13中进行降压并调节到适量后流入蒸发器14；从节流装置13出来的低压液态制冷剂在蒸发器14内吸收室内空气中的热量并蒸发，由此调节室内温度，从而达到制冷的目的。
具体的，地冷管路12包括主管路121、第一支管路1221及第二支管路1222，第一支管路1221和第二支管路1222分别与主管路121连接，第一支管路1221的一端直接或间接与压缩机11的出气口连接，第二支管路1222的一端直接或间接与节流装置13的进液口连接。第一支管路1221和第二支管路1222均向上延伸设置，主管路121在地底深处沿水平方向延伸一段距离，延长制冷剂在地底的停滞时间，提高换热效果。为了避免在第一支管路1221和主管路121内已经发生换热相变的制冷剂液体在沿第二支管路122 向朝向地表的方向流动过程中发生热量交换，在第二支管路1222的外围设置保温层，如保温泡沫等。
壳体15上设有第一接口151和第二接口152，第一接口151与压缩机11的出气口连接，第二接口152与节流装置13的进液口连接，第一支管路1221的一端与第一接口151连接，第二支管路122的一端与第二接口152连接。第一支管路1221与第一接口151的连接处、第二支管路1222与第二接口152的连接处可以采用快速接头的方式进行连接，便于消费者自己在家中即可对窗式空调器进行快速地安装。
第一支管路1221的一端设有第一辅助管161，第二支管路1222的一端设有第二辅助管162，第一辅助管161与第一接口151连接，第二辅助管162与第二接口152连接。第一辅助管161和第二辅助管162具有多种长度尺寸规格，在实际安装中根据第一接口151与第一支管路1221的端部之间的距离、及第二接口152与第二支管路1222的端部之间的距离而选择适合长度的第一辅助管161、第二辅助管162即可，进一步方便空调器主体10的安装。
为了避免第二辅助管162中流动的相变后的液态制冷剂发生热量交换，在第二辅助管162的外围设置保温层，如保温泡沫等。
第一支管路1221的端部和第二支管路1222的端部分别设有调节阀17，当地冷管路12与压缩机11和节流装置13安装到位后，将调节阀17打开，整个换热系统则畅通。
该地冷式空调器的安装步骤为：
将地冷管路12至少部分埋于地底下，其中主管路121位于最低处、主管路121位于地下2-5m处、且沿水平方向延伸一段距离，第一支管路1221和第二支管路1222分别向上延伸设置，第一支管路1221的端部和第二支管路1222的端部均分别外露于地表，供用户连接使用；
安装空调器主体10，将空调器主体10固定安装至预定位置处；
将第一支管路1221的一端直接或间接与压缩机11的出气口连接；
将第二支管路1222的一端直接或间接与节流装置13的进液口连接。
具体的，在步骤“将地冷管路12至少部分埋于地底下”中，在实际安装中，第一支管路1221和第二支管路1222的下部分均位于地底下、与主管路121连接，第一支管路1221和第二支管路1222的上部分均位于墙体30的内部，第一支管路1221的上端部和第二支管路122的上端部分别从墙体 30内伸出，供用户连接使用。
在步骤“安装空调器主体10，将空调器主体10固定安装至预定位置处”中，对于窗式空调器，将空调器主体10固定安装至窗口40处；对于立式空调器，将空调器主体10固定放置在室内某处；对于穿墙式空调器，将空调器主体10固定安装至墙体的预定洞口处。
在步骤“将第一支管路1221的一端直接或间接与压缩机11的出气口连接”中，在第一支管路1221的端部连接第一辅助管161，将第一辅助管161与空调壳体15上的第一接口151连接，其中第一接口151与压缩机11的出气口连接。
在步骤“将第二支管路1222的一端直接或间接与节流装置13的进液口连接”中，在第二支管路122的端部连接第二辅助管162，将第二辅助管162与空调壳体15上的第二接口152连接，其中第二接口152与节流装置13的进液口连接。
本发明还公开一种地冷式空调器系统，参照图4，其包括至少部分位于于地底下的地冷管路12和多个上述实施例所述公开的空调器主体10，空调器主体10包括壳体15，壳体内设有压缩机11、节流装置13及蒸发器14。地冷管路12包括位于地下的主管路121和与主管路121连接的多个支管路组，每个支管路组与一个空调器主体10对应，每个支管路组包括第一支管路1221和第二支管路1222，第一支管路1221的一端直接或间接与对应的空调器主体10的压缩机11的出气口连接，第二支管路1222的一端直接或间接与对应的空调器主体10的节流装置13的进液口连接。从压缩机11出来的高温高压的气态制冷剂通过第一支管路1221流入位于地底的主管路121内，利用地底的低温对高温高压的气态制冷剂进行换热，随着气态制冷剂在地底下不断向下流动，高温高压的气态制冷剂发生相变，转变为中温高压的液态制冷剂，相变后的中温高压的液态制冷剂再通过第二支管路1222流入节流装置中进行降压并调节到适量后流入蒸发器；从节流装置13出来的低压液态制冷剂在蒸发器14内吸收室内空气中的热量并蒸发，由此调节室内温度，从而达到制冷的目的。
每个第一支管路1221的端部和每个第二支管路1222的端部分别设有调节阀17，通过调节阀17来调节每个空调器主体10内流通的制冷剂的流量，使流入地冷管路12内的制冷剂的流量与流出地冷管路12的制冷剂的流量相 等，进一步保证整个换热系统的稳定性和换热效果。
该地冷式空调器系统的安装方法如下：
将地冷管路12至少部分埋于地底下，其中主管路121位于最低处、主管路121位于地下2-5m处、且沿水平方向延伸一段距离，第一支管路1221和第二支管路1222分别向上延伸设置，第一支管路1221的端部和第二支管路1222的端部均分别外露于地表，供用户连接使用；
安装空调器主，10，将空调器主体10固定安装至预定位置处；
将第一支管路1221的一端直接或间接与压缩机11的出气口连接；
将第二支管路1222的一端直接或间接与节流装置13的进液口连接。
具体的，在步骤“将地冷管路12至少部分埋于地底下”中，在实际安装中，第一支管路1221和第二支管路1222的下部分均位于地底下、与主管路121连接，第一支管路1221和第二支管路1222的上部分均位于墙体30的内部，第一支管路1221的端部和第二支管路1222的端部分别从墙体30内伸出，供用户连接使用。
在步骤“安装空调器主体10，将空调器主体10固定安装至预定位置处”中，对于窗式空调器，将空调器主体10固定安装至窗口处；对于立式空调器，将空调器主体10固定放置在室内某处；对于穿墙式空调器，将空调器主体10固定安装至墙体的预定洞口处。
在步骤“将第一支管路1221的一端直接或间接与压缩机11的出气口连接”中，在第一支管路1221的端部连接第一辅助管61，将第一辅助管161与空调壳体15上的第一接口151连接，其中第一接口151与压缩机11的出气口连接。
在步骤“将第二支管路1222的一端直接或间接与节流装置13的进液口连接”中，在第二支管路1222的端部连接第二辅助管162，将第二辅助管162与空调壳体15上的第二接口152连接，其中第二接口152与节流装置13的进液口连接。
在实际应用中，比如现有的居民楼而言，开发商在建筑楼体时，在建筑地基之前，就先将主管路121、第一支管路1221的下部分、第二支管路1222的下部分深埋于地底下；地基建好之后，搭建楼体时，将第一支管路1221的上部分、第二支管路1222的上部分埋入墙体30内并在墙体30内延伸，第一支管路1221的端部、第二支管路1222的端部分别在每个住户家对应的 墙体30上设置接口。当住户需要安装空调10时，将本实施例所公开的地冷式空调器主体10固定安装至预定位置后，在墙体30上第一支管路1221的接口处连接第一辅助管161，在墙体30上第二支管路1222的接口处连接第二辅助管162，将第一辅助管161与空调壳体15上的第一接口151连接，将第二辅助管162与空调壳体上的第二接口152连接即可。
最后应说明的是：以上实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。

Claims (10)

  1. 一种地冷式换热方法，包括：
    气态制冷剂由压缩机进入至少部分位于地下的地冷管路，所述气态制冷剂在所述地冷管路中相变为液态制冷剂，相变后的所述液态制冷剂依次流经节流装置和蒸发器。
  2. 根据权利要求1所述的地冷式换热方法，其中，
    所述地冷管路在地下的埋入深度为2-5m。
  3. 一种地冷式换热系统，包括：
    依次管路连接的压缩机、地冷管路、节流装置及蒸发器；
    所述地冷管路至少部分位于地下，所述地冷管路的一端直接或间接与所述压缩机的出气口连接，所述地冷管路的另一端直接或间接与所述节流装置的进液口连接。
  4. 根据权利要求3所述的地冷式换热系统，其中，
    所述地冷管路在地下的埋入深度为2-5m。
  5. 根据权利要求3所述的地冷式换热系统，其中，
    所述地冷管路包括主管路和设于所述主管路两端的第一支管路、第二支管路，所述主管路在地下沿水平方向延伸一预设距离，所述第一支管路的端部直接或间接与所述压缩机的出气口连接，所述第二支管路的端部直接或间接与所述蒸发器的进液口连接。
  6. 根据权利要求5所述的地冷式换热系统，其中，
    所述第一支管路连接有第一辅助管，所述第二支管路连接有第二辅助管，所述第一辅助管与所述压缩机的出气口连接，所述第二辅助管与所述节流装置的进液口连接。
  7. 根据权利要求6所述的地冷式换热系统，其中，
    所述第二支管路和所述第二辅助管的外围均设有保温层。
  8. 根据权利要求3-7中任一项所述的地冷式换热系统，其中，
    所述地冷管路的两端分别设有调节阀。
  9. 一种地冷式空调器，包括空调器主体和如权利要求3-8中任一项所述的地冷式换热系统；
    所述空调器主体包括壳体，所述地冷式换热系统中的压缩机、节流装置及蒸发器均设于所述壳体内。
  10. 一种权利要求9所述的地冷式空调器的安装方法，包括：
    将所述地冷式空调器中的所述地冷管路至少部分埋于地下，所述地冷管路的两端分别外露于地表；
    安装所述地冷式空调器中的空调器主体；
    将所述地冷管路的一端直接或间接与所述空调器主体中的压缩机的出气口连接，将所述地冷管路的另一端直接或间接与所述空调器主体中的节流装置的进液口连接。
PCT/CN2020/074736 2019-04-08 2020-02-11 一种地冷式换热方法、换热系统、空调器及安装方法 WO2020207109A1 (zh)

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