CN103090596A - Fin-type heat exchanger - Google Patents
Fin-type heat exchanger Download PDFInfo
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- CN103090596A CN103090596A CN2011103431405A CN201110343140A CN103090596A CN 103090596 A CN103090596 A CN 103090596A CN 2011103431405 A CN2011103431405 A CN 2011103431405A CN 201110343140 A CN201110343140 A CN 201110343140A CN 103090596 A CN103090596 A CN 103090596A
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- heat exchanger
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Abstract
The invention relates to a fin-type heat exchanger. The fin-type heat exchanger comprises that high temperature and high pressure gas came out of a compressor enters through a gas inlet pipe; the gas inlet pipe passes a plurality of rows of U-type inner thread heat exchange pipes arranged on the lower portion of the fin-type heat exchanger and then is connected with a total gas distribution pipe; the total gas distribution pipe enters into other U-type inner thread heat exchange pipes of the fin-type heat exchanger through gas distribution pipes; and the other U-type inner thread heat exchange pipes are connected with a liquid return pipe through a total liquid collecting pipe. The fin-type heat exchanger has the advantages of specifically enabling high temperature and high pressure refrigerating fluid gas from the compressor to enter from the bottom of the fin-type heat exchanger which is difficult to defrost, and accordingly improves defrosting efficiency, heat transfer coefficient of the set, heat exchange effect, and heat exchange efficiency of the whole set.
Description
Technical field
The present invention relates to a kind of finned heat exchanger, relate in particular to the lower end heat exchange structure of this finned heat exchanger.
Background technology
Finned heat exchanger is comprised of parts such as end plate, the tube bank of U-shaped internal thread heat exchanger tube heat exchanger tube, aluminium foil fin, air inlet pipe, drain pipes.Profile mostly is rectangle, and tube bank and aluminium foil are equipped with in inside, restrains two ends and is fixed on the end plate plate, and aluminium foil is fixed in tube bank.Carry out the cold and hot two media of heat exchange, a kind of mobile in the finned heat exchanger tube bank, another kind externally flows on the aluminium foil fin.Usually compacting line can improve the heat transfer coefficient of extratubal fluid on the aluminium foil fin.
When ambient temperature is low in the winter time, the easy frosting of finned heat exchanger, particularly the bottom easily freezes.So machine just must carry out defrost after operation a period of time, traditional defrost is directly to enter the monoblock finned heat exchanger from compressor high temperature and high pressure gas out by total gas-distributing pipe, then gets back to liquid back pipe through total collector tube.The frosting of finned heat exchanger bottom can not once all have been changed, and the phenomenon of freezing more and more seriously can appear in the frost bottom unit operation time fin, thereby affects the heat exchange efficiency of whole unit.
Fig. 1 is traditional finned heat exchanger that the prior art central air conditioner system is used.
As seen from Figure 1: under low temperature environment, the fin defrost is to enter U-shaped internal thread heat exchanger tube heat exchanger tube tube bank 4 by air inlet pipe 1 regardless of each the gas-distributing pipe 3 of directly being in charge of on 2 by total gas of emphasis from compressor high temperature and high pressure gas out, then gets back to liquid back pipe 6 through total collector tube 5.The frosting of finned heat exchanger bottom can not once all have been changed, and causes the heat exchange efficiency of whole unit to descend, and the structure of therefore improving finned heat exchanger has great significance.
Summary of the invention
The technical issues that need to address of the present invention have been to provide a kind of finned heat exchanger, are intended to solve the above problems.
In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions:
The present invention includes: compressor high temperature and high pressure gas is out entered by air inlet pipe; Described air inlet pipe is through the U-shaped internal thread heat exchanger tube of several rows of finned heat exchanger bottom, be in charge of with total gas and be connected again; Described total gas is in charge of by gas-distributing pipe and is entered other U-shaped internal thread heat exchanger tube of finned heat exchanger; Described other U-shaped internal thread heat exchanger tube is connected with liquid back pipe by total collector tube.
Compared with prior art, the invention has the beneficial effects as follows: adopted first beginning to enter from finned heat exchanger defrost more difficult bottom targetedly from the high-temperature high-pressure refrigerant gas of compressor, thereby improved defrost efficient, also improved the heat transfer coefficient of unit, increase heat transfer effect, improved the heat exchange efficiency of whole unit.
Description of drawings
Fig. 1 is traditional fin type heat exchanger structure schematic diagram that the prior art central air conditioner system is used.
Fig. 2 is structural representation of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing and the specific embodiment, the present invention is described in further detail:
As seen from Figure 2: the present invention includes: compressor high temperature and high pressure gas is out entered by air inlet pipe 10; Described air inlet pipe 10 through the U-shaped internal thread heat exchanger tube 11 of several rows of finned heat exchanger bottom, be in charge of 12 with total gas again and be connected; Described total gas is in charge of 12 and is entered other U-shaped internal thread heat exchanger tube 14 of finned heat exchanger by gas-distributing pipe 13; Described other U-shaped internal thread heat exchanger tube 14 is connected with liquid back pipe 16 by total collector tube 15.
The U-shaped internal thread heat exchanger tube 11 of several rows of described bottom is 2-5 row.
The present invention entered respectively the gas-distributing pipe of other heat exchanger tube by the heat exchanger tube of finned heat exchanger bottom before this again from the gas of compressor HTHP out.
The present invention is used to first pass through the serious heat exchanger tube of the finned heat exchanger a few row's frostings in bottom from the gas of compressor HTHP when defrost, solve under low temperature environment that the fin lower ends frosting is serious, the scabrous problem of defrost problem, thereby increased defrost efficient, improved the operational efficiency of unit.
Claims (2)
1. finned heat exchanger, comprising: compressor high temperature and high pressure gas is out entered by air inlet pipe; It is characterized in that: described air inlet pipe is through the U-shaped internal thread heat exchanger tube of several rows of finned heat exchanger bottom, be in charge of with total gas and be connected again; Described total gas is in charge of by gas-distributing pipe and is entered other U-shaped internal thread heat exchanger tube of finned heat exchanger; Described other U-shaped internal thread heat exchanger tube is connected with liquid back pipe by total collector tube.
2. finned heat exchanger according to claim 1 is characterized in that: the U-shaped internal thread heat exchanger tube of several rows of described bottom is 2-5 row.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN2011103431405A CN103090596A (en) | 2011-11-03 | 2011-11-03 | Fin-type heat exchanger |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2011103431405A CN103090596A (en) | 2011-11-03 | 2011-11-03 | Fin-type heat exchanger |
Publications (1)
Publication Number | Publication Date |
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CN103090596A true CN103090596A (en) | 2013-05-08 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN2011103431405A Pending CN103090596A (en) | 2011-11-03 | 2011-11-03 | Fin-type heat exchanger |
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Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5079854A (en) * | 1973-11-20 | 1975-06-28 | ||
JPS52154145A (en) * | 1976-06-17 | 1977-12-21 | Matsushita Electric Ind Co Ltd | Cooling/heating device |
CN1080387A (en) * | 1992-04-03 | 1994-01-05 | 昭和铝株式会社 | Stack type evaporator |
WO2004097306A1 (en) * | 2003-04-30 | 2004-11-11 | Toshiba Carrier Corporation | Outdoor unit for air conditioner |
CN2874364Y (en) * | 2005-12-29 | 2007-02-28 | 海信集团有限公司 | Condenser of air conditioner |
CN1940410A (en) * | 2005-09-29 | 2007-04-04 | 乐金电子(天津)电器有限公司 | Outdoor unit of air conditioner |
CN101737993A (en) * | 2008-11-10 | 2010-06-16 | Lg电子株式会社 | Air conditioning system |
CN202304115U (en) * | 2011-11-03 | 2012-07-04 | 上海瀚艺冷冻机械有限公司 | Finned heat exchanger |
-
2011
- 2011-11-03 CN CN2011103431405A patent/CN103090596A/en active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5079854A (en) * | 1973-11-20 | 1975-06-28 | ||
JPS52154145A (en) * | 1976-06-17 | 1977-12-21 | Matsushita Electric Ind Co Ltd | Cooling/heating device |
CN1080387A (en) * | 1992-04-03 | 1994-01-05 | 昭和铝株式会社 | Stack type evaporator |
WO2004097306A1 (en) * | 2003-04-30 | 2004-11-11 | Toshiba Carrier Corporation | Outdoor unit for air conditioner |
CN1940410A (en) * | 2005-09-29 | 2007-04-04 | 乐金电子(天津)电器有限公司 | Outdoor unit of air conditioner |
CN2874364Y (en) * | 2005-12-29 | 2007-02-28 | 海信集团有限公司 | Condenser of air conditioner |
CN101737993A (en) * | 2008-11-10 | 2010-06-16 | Lg电子株式会社 | Air conditioning system |
CN202304115U (en) * | 2011-11-03 | 2012-07-04 | 上海瀚艺冷冻机械有限公司 | Finned heat exchanger |
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Application publication date: 20130508 |