CN106839837A - Gravity heat pipe heat exchanger capable of being switched between winter and summer in air conditioner and switching method thereof - Google Patents

Gravity heat pipe heat exchanger capable of being switched between winter and summer in air conditioner and switching method thereof Download PDF

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Publication number
CN106839837A
CN106839837A CN201611207429.3A CN201611207429A CN106839837A CN 106839837 A CN106839837 A CN 106839837A CN 201611207429 A CN201611207429 A CN 201611207429A CN 106839837 A CN106839837 A CN 106839837A
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China
Prior art keywords
pipe
fresh air
air
outlet pipe
valve
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CN201611207429.3A
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CN106839837B (en
Inventor
王清勤
赵力
仇丽娉
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China Academy of Building Research CABR
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China Academy of Building Research CABR
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Priority to CN201611207429.3A priority Critical patent/CN106839837B/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D15/00Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • F28D15/02Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F12/00Use of energy recovery systems in air conditioning, ventilation or screening
    • F24F12/001Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
    • F24F12/002Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an intermediate heat-transfer fluid
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F12/00Use of energy recovery systems in air conditioning, ventilation or screening
    • F24F12/001Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
    • F24F12/002Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an intermediate heat-transfer fluid
    • F24F2012/005Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an intermediate heat-transfer fluid using heat pipes

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

The invention provides a gravity heat pipe heat exchanger capable of being switched between winter and summer in an air conditioner and a switching method thereof, wherein the gravity heat pipe heat exchanger comprises a gravity heat pipe heat exchanger body, the gravity heat pipe heat exchanger body is provided with an evaporation end (11) positioned at the lower part and a condensation end (12) positioned at the upper part, the evaporation end (11) and the condensation end (12) are mutually hermetically isolated, two outer sides of the evaporation end (11) are respectively provided with a lower static pressure box (21), two outer sides of the condensation end (12) are respectively provided with an upper static pressure box (22), and the lower static pressure box (21) and the upper static pressure boxes (22) are mutually hermetically isolated; the outer side of one lower static pressure box (21) is respectively communicated with a fresh air inlet pipe (41) and an exhaust air outlet pipe (42) through two lower valves (31), and the outer side of the other lower static pressure box (21) is respectively communicated with a fresh air outlet pipe (43) and an exhaust air inlet pipe (44) through the other two lower valves (32); the outer side of one upper static pressure box (22) is respectively communicated with the fresh air inlet pipe (41) and the exhaust air outlet pipe (42) through two upper valves (33), and the outer side of the other upper static pressure box (22) is respectively communicated with the fresh air outlet pipe (43) and the exhaust air inlet pipe (44) through the other two upper valves (34).

Description

The gravity heat pipe heat exchanger and its changing method that can switch in the summer in winter in air-conditioning
Technical field
The present invention relates to the gravity heat pipe heat exchanger in a kind of air-conditioning.
Background technology
Heat pipe is a kind of heat transfer element with high thermal conductivity, and it is by the evaporation of the working medium in Totally enclosed vacuum shell Transmit heat with condensing, with high thermal conductivity, good isothermal, cold and hot both sides heat transfer area can arbitrarily change, Can the series of advantages such as remotely transferring, temperature controllable.
Heat pipe is the high-performance heat transfer components that heat transfer is realized by the phase transformation of therein hydraulic fluid, and it can be by big calorimetric Amount by the sectional area of its very little transmit over long distances and without additionaling power.Heat pipe is skillfully constructed with it, and the transmission temperature difference is small suitable With wide temperature range, numerous good characteristics such as heat flow density in adjustable keyholed back plate have shown in terms of energy regenerating and UTILIZATION OF VESIDUAL HEAT IN Go out the effect of its uniqueness.Heat exchange of heat pipe belongs to the non-touching surface-type heat exchange of cold fluid and hot fluid, and the occupation of land that it has is small, nothing turns The good characteristic such as dynamic component, safe and reliable to operation, heat exchange efficiency be high is engineering from creating convenience.
Heat exchanger with heat pipe as heat transfer element has heat transfer efficiency high, compact conformation, fluid resistance damage is small, be conducive to control The advantages of dew point corrosion.It is widely used to the industries such as metallurgy, chemical industry, oil refining, boiler, ceramics, traffic, light textile, machinery at present In, as the energy-saving equipment of heat energy utilization in Waste Heat Recovery and technical process, achieve significant economic benefit.
Hot-pipe type heat-exchanger is the air-to-air energy recovery equipment commonly used in current air-conditioning system, and hot-pipe type heat-exchanger is main It is made up of several heat pipes.Gravity assisted heat pipe heat exchanger two parts of thermal current and cold airflow by being made up of respectively.Heat pipe It is made up of the airtight vacuum metal tube of inside filling refrigerant, once heat pipe one end (condensation end evaporation ends) are heated, in external heat In the presence of, vaporization in the liquid short time in pipe, and the other end of heat pipe is flowed in the presence of differential pressure, then these gases pair The external world releases heat and is condensed into liquid, and then these liquid return to heat pipe original end (condensation end) by Action of Gravity Field again, and It is heated again vaporization, such course of work is constantly circulated, and heat is just endlessly delivered to that end from this end of heat pipe.
Gravity heat pipe heat exchanger in the air-conditioning for using at present is unidirectional heat transfer, because the position up and down of gravity assisted heat pipe Respectively condenser and evaporator, the heat absorption of upside heat release downside, therefore hot blast is always flowed through in the downside of heat exchanger, upside is always flowed Cross cold wind.Winter room air is hot blast, and outdoor air is cold wind, on the contrary summer;Therefore for the summer in gravity heat pipe heat exchanger winter The cold-hot wind direction in season is different.
Winter fresh air is exchanged heat in upper air draft under, downside air draft heat release, the heat absorption of upside fresh air, fresh air and air exhaust heat exchange Heat up;Summer fresh air is exchanged heat in lower air draft upper, upside air draft heat release, and upside fresh air heat absorption, fresh air drops with air exhaust heat exchange Temperature.
The shortcoming of this heat exchange of heat pipe is that Summer and winter can not freely switch, for gravity type heat pipe, condensation segment Installation site necessarily be greater than evaporator section, thus it is applied to occasion of the cold wind in upper, hot blast under;If complete for air-conditioning system Year exhaust air energy recovery, then winter carry out needing to change the position into, exhaust outlet relative to heat pipe when fresh air preheating is processed.
The content of the invention
The present invention is to solve the above problems, there is provided the gravity heat pipe heat exchanger that can switch in the summer in winter in a kind of air-conditioning and its switching Method, can adapt to the ventilation heat exchange requirement of summer in winter Various Seasonal.
To achieve the above object, the technical solution adopted by the present invention includes the gravity assisted heat pipe that can switch in the summer in winter in a kind of air-conditioning Heat exchanger, including gravity heat pipe heat exchanger body, the gravity heat pipe heat exchanger body have the evaporation ends and position positioned at bottom In the condensation end on top, the evaporation ends are mutually airtight with condensation end to isolate, it is characterised in that:
Respectively there is a lower plenum chamber in two outsides of evaporation ends, respectively have plenum chamber on, institute in two outsides of condensation end State that lower plenum chamber and upper plenum chamber are mutually airtight to isolate;
The outside of one of them lower plenum chamber enters pipe with fresh air respectively by two lower valves and air draft outlet pipe is connected, The outside of another lower plenum chamber enters pipe and is connected with fresh air outlet pipe and air draft respectively by two other lower valve;
The outside of plenum chamber enters pipe with the fresh air respectively by two upper valves and the air draft goes out on one of them Pipe is connected, on another outside of plenum chamber by valve on two other respectively with the fresh air outlet pipe and the air draft Enter pipe to be connected.
The technical solution adopted by the present invention also includes a kind of switching of the gravity heat pipe heat exchanger that can switch in the summer in winter in air-conditioning Method, it has the gravity heat pipe heat exchanger that can switch in the summer in winter in above-mentioned air-conditioning, it is characterised in that:
Under summer mode, the valve that two upper plenum chambers and the fresh air enter between pipe and the fresh air outlet pipe is beaten Open, and two upper plenum chambers and the air draft enter the valve closing between pipe and the air draft outlet pipe;Meanwhile, it is quiet under two Pressure case and the fresh air enter the valve closing between pipe and the fresh air outlet pipe, and two lower plenum chambers enter with the air draft Valve between pipe and the air draft outlet pipe is opened;
In the winter time under pattern, the valve that two upper plenum chambers and the fresh air enter between pipe and the fresh air outlet pipe is closed Close, and the valve that two upper plenum chambers and the air draft enter between pipe and the air draft outlet pipe is opened;Meanwhile, it is quiet under two The valve that pressure case and the fresh air enter between pipe and the fresh air outlet pipe is opened, and two lower plenum chambers enter with the air draft Valve closing between pipe and the air draft outlet pipe.
Compared with prior art, the invention has the advantages that:Whether in summer or in the winter time, as long as cutting Valve is changed, the evaporation ends of hotter airflow passes gravity heat pipe heat exchanger body, colder airflow passes gravity heat can be made The condensation end of heat exchange of heat pipe body, it is ensured that gravity heat pipe heat exchanger body is in correct working condition all the time.So as to so that tool The air-conditioning for having the gravity heat pipe heat exchanger can easily carry out the switching of summer in winter.
Brief description of the drawings
Fig. 1 is the schematic perspective view of the heat exchange of heat pipe that the present invention is provided;
Fig. 2 is adaptive state figure of the heat exchange of heat pipe of present invention offer in summer operation;
Fig. 3 is the adaptive state figure when heat exchange of heat pipe that the present invention is provided works in the winter time.
Description of reference numerals:Evaporation ends 11;Condensation end 12;Lower plenum chamber 21;Upper plenum chamber 22;Lower valve 31,32;Upper valve Door 33,34;Fresh air enters pipe 41;Air draft outlet pipe 42;Fresh air outlet pipe 43;Air draft enters pipe 44.
Specific embodiment
As shown in figure 1, be in the air-conditioning that the present invention is provided can the switching of summer in winter gravity heat pipe heat exchanger, including gravity assisted heat pipe Heat exchanger body, the gravity heat pipe heat exchanger body has the evaporation ends 11 and superposed condensation end 12 positioned at bottom, The evaporation ends 11 are mutually airtight with condensation end 12 to isolate, and respectively has a lower plenum chamber 21 in two outsides of evaporation ends 11, cold Respectively there is a upper plenum chamber 22 in two outsides at solidifying end 12, and the lower plenum chamber 21 is mutually airtight with upper plenum chamber 22 to isolate;
The outside of one of them lower plenum chamber 21 enters pipe 41 and air draft outlet pipe with fresh air respectively by two lower valves 31 42 are connected, and the outside of another lower plenum chamber 21 is entered with fresh air outlet pipe 43 and air draft respectively by two other lower valve 32 Pipe 44 is connected;
The outside of plenum chamber 22 enters pipe 41 and described with the fresh air respectively by two upper valves 33 on one of them Air draft outlet pipe 42 is connected, on another outside of plenum chamber 22 by valve 34 on two other respectively with the fresh air outlet pipe 43 and the air draft enter pipe 44 and be connected.
Under summer mode, as shown in Fig. 2 two upper plenum chambers 22 enter pipe 41 and the fresh air outlet pipe with the fresh air Valve between 43 is opened, and two upper plenum chambers 22 and the air draft enter the valve between pipe 44 and the air draft outlet pipe 42 Door is closed;Meanwhile, two lower plenum chambers 21 and the fresh air enter the valve closing between pipe 41 and the fresh air outlet pipe 43, and And the valve that two lower plenum chambers 21 and the air draft enter between pipe 44 and the air draft outlet pipe 42 is opened;
In the winter time under pattern, as shown in figure 3, two upper plenum chambers 22 enter pipe 41 and the fresh air outlet pipe with the fresh air Valve closing between 43, and two upper plenum chambers 22 and the air draft enter the valve between pipe 44 and the air draft outlet pipe 42 Door is opened;Meanwhile, the valve that two lower plenum chambers 21 and the fresh air enter between pipe 41 and the fresh air outlet pipe 43 is opened, and And two lower plenum chambers 21 and the air draft enter the valve closing between pipe 44 and the air draft outlet pipe 42.
It is arranged such, whether in summer or in the winter time, as long as switch valve, hotter airflow passes weight can be made The evaporation ends 11 of power heat exchange of heat pipe body, the condensation end 12 of colder airflow passes gravity heat pipe heat exchanger body, it is ensured that weight Power heat exchange of heat pipe body is in correct working condition all the time.So as to so that the air-conditioning with the gravity heat pipe heat exchanger The switching of summer in winter can easily be carried out.

Claims (2)

1. the gravity heat pipe heat exchanger that can switch in the summer in winter in a kind of air-conditioning, including gravity heat pipe heat exchanger body, the gravity heat Heat exchange of heat pipe body have positioned at bottom evaporation ends (11) and superposed condensation end (12), the evaporation ends (11) with it is cold Solidifying end (12) mutually airtight isolation, it is characterised in that:
Respectively there is a lower plenum chamber (21) in two outsides of evaporation ends (11), respectively have quiet on one in two outsides of condensation end (12) Pressure case (22), the lower plenum chamber (21) is mutually airtight with upper plenum chamber (22) to isolate;
The outside of one of them lower plenum chamber (21) enters pipe (41) with fresh air respectively by two lower valves (31) and air draft goes out Pipe (42) is connected, the outside of another lower plenum chamber (21) by two other lower valve (32) respectively with fresh air outlet pipe (43) And air draft enters pipe (44) and is connected;
The outside of plenum chamber (22) enters pipe (41) and institute with the fresh air respectively by two upper valves (33) on one of them Air draft outlet pipe (42) is stated to be connected, on another outside of plenum chamber (22) by valve (34) on two other respectively with it is described Fresh air outlet pipe (43) and the air draft enter pipe (44) and are connected.
2. a kind of changing method of the gravity heat pipe heat exchanger that can switch in the summer in winter in air-conditioning, it has as claimed in claim 1 The gravity heat pipe heat exchanger that can switch in the summer in winter in air-conditioning, it is characterised in that:
Under summer mode, two upper plenum chambers (22) enter between pipe (41) and the fresh air outlet pipe (43) with the fresh air Valve is opened, and two upper plenum chambers (22) enter to manage the valve between (44) and the air draft outlet pipe (42) with the air draft Close;Meanwhile, the valve that two lower plenum chambers (21) enter between pipe (41) and the fresh air outlet pipe (43) with the fresh air is closed Close, and the valve that two lower plenum chambers (21) enter between pipe (44) and the air draft outlet pipe (42) with the air draft is opened;
In the winter time under pattern, two upper plenum chambers (22) enter between pipe (41) and the fresh air outlet pipe (43) with the fresh air Plenum chambers (22) enter the valve between pipe (44) and the air draft outlet pipe (42) with the air draft on valve closing, and two Open;Meanwhile, two lower plenum chambers (21) enter the valve between pipe (41) and the fresh air outlet pipe (43) and beat with the fresh air Open, and two lower plenum chambers (21) enter the valve closing between pipe (44) and the air draft outlet pipe (42) with the air draft.
CN201611207429.3A 2016-12-23 2016-12-23 Gravity heat pipe heat exchanger capable of being switched in winter and summer in air conditioner and switching method thereof Active CN106839837B (en)

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Application Number Priority Date Filing Date Title
CN201611207429.3A CN106839837B (en) 2016-12-23 2016-12-23 Gravity heat pipe heat exchanger capable of being switched in winter and summer in air conditioner and switching method thereof

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Application Number Priority Date Filing Date Title
CN201611207429.3A CN106839837B (en) 2016-12-23 2016-12-23 Gravity heat pipe heat exchanger capable of being switched in winter and summer in air conditioner and switching method thereof

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6321546B1 (en) * 2000-07-10 2001-11-27 Douglas E. Johnson Heat transfer system
JP2009041444A (en) * 2007-08-08 2009-02-26 Denso Corp Exhaust heat recovery device
CN201285125Y (en) * 2008-09-28 2009-08-05 西安工程大学 Heat pipe and heat pump combined vaporization cooling air-conditioning unit
CN102269466A (en) * 2011-07-14 2011-12-07 清华大学 Fresh air handling unit
CN102878664A (en) * 2012-10-26 2013-01-16 湖北靛蓝科技有限公司 Precise air conditioner for computer room and integral heat exchanger of precise air conditioner
CN204227618U (en) * 2014-11-19 2015-03-25 贝莱特空调有限公司 A kind of economic benefits and social benefits heat pipe-type heat recovery energy-saving fresh air handining unit
CN206339136U (en) * 2016-12-23 2017-07-18 中国建筑科学研究院 The gravity heat pipe heat exchanger that can switch in the summer in winter in air-conditioning

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6321546B1 (en) * 2000-07-10 2001-11-27 Douglas E. Johnson Heat transfer system
JP2009041444A (en) * 2007-08-08 2009-02-26 Denso Corp Exhaust heat recovery device
CN201285125Y (en) * 2008-09-28 2009-08-05 西安工程大学 Heat pipe and heat pump combined vaporization cooling air-conditioning unit
CN102269466A (en) * 2011-07-14 2011-12-07 清华大学 Fresh air handling unit
CN102878664A (en) * 2012-10-26 2013-01-16 湖北靛蓝科技有限公司 Precise air conditioner for computer room and integral heat exchanger of precise air conditioner
CN204227618U (en) * 2014-11-19 2015-03-25 贝莱特空调有限公司 A kind of economic benefits and social benefits heat pipe-type heat recovery energy-saving fresh air handining unit
CN206339136U (en) * 2016-12-23 2017-07-18 中国建筑科学研究院 The gravity heat pipe heat exchanger that can switch in the summer in winter in air-conditioning

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