CN202304115U - Finned heat exchanger - Google Patents

Finned heat exchanger Download PDF

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Publication number
CN202304115U
CN202304115U CN2011204304169U CN201120430416U CN202304115U CN 202304115 U CN202304115 U CN 202304115U CN 2011204304169 U CN2011204304169 U CN 2011204304169U CN 201120430416 U CN201120430416 U CN 201120430416U CN 202304115 U CN202304115 U CN 202304115U
Authority
CN
China
Prior art keywords
heat exchanger
finned heat
gas
finned
heat exchange
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN2011204304169U
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Chinese (zh)
Inventor
卢大民
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HAYE(SHANGHAI) REFRIGERATION MACHINERY CO Ltd
Original Assignee
HAYE(SHANGHAI) REFRIGERATION MACHINERY CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by HAYE(SHANGHAI) REFRIGERATION MACHINERY CO Ltd filed Critical HAYE(SHANGHAI) REFRIGERATION MACHINERY CO Ltd
Priority to CN2011204304169U priority Critical patent/CN202304115U/en
Application granted granted Critical
Publication of CN202304115U publication Critical patent/CN202304115U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to a finned heat exchanger, which is characterized in that high-temperature and high-pressure gas coming out of a compressor enters from a gas inlet tube; the gas inlet tube is connected with a main gas distribution tube through a plurality of rows of U-shaped female-thread heat exchange tubes at the lower part of the finned heat exchanger; the gas in the main gas distribution tube enters other U-shaped female-thread heat exchange tubes of the finned heat exchanger through gas distribution tubes; and the other U-shaped female-thread heat exchange tubes are connected with a liquid return pipe through a main liquid collection pipe. The finned heat exchanger has the beneficial effects that since the high-temperature and high-pressure refrigerant gas coming from the compressor purposely and firstly starts to enter from the bottom of the finned heat exchanger at which defrosting is comparatively difficult, the defrosting efficiency is improved, the heat transfer coefficient of a unit is also improved, the heat exchange effect is improved and the heat exchange efficiency of the entire unit is improved.

Description

Finned heat exchanger
Technical field
The utility model relates to a kind of finned heat exchanger, relates in particular to the lower end heat exchange structure of this finned heat exchanger.
Background technology
Finned heat exchanger is made up of parts such as end plate, the tube bank of U type internal thread heat exchanger tube heat exchanger tube, aluminium foil fin, air inlet pipe, drain pipes.Mostly profile is rectangle, and tube bank and aluminium foil are equipped with in inside, and the tube bank two ends are fixed on the end plate plate, and aluminium foil is fixed in the 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 freezes easily.So machine just must carry out defrost after operation a period of time, traditional defrost is directly to get into the monoblock finned heat exchanger from the high temperature and high pressure gas that compressor comes out by total gas-distributing pipe, gets back to liquid back pipe through total collector tube then.The frosting of finned heat exchanger bottom can not once all have been changed, and along with the phenomenon of freezing more and more seriously can appear in the frosting phenomenon of unit operation time fin, thereby influences the heat exchange efficiency of whole unit.
Traditional finned heat exchanger that Fig. 1 uses for the prior art central air conditioner system.
Visible by Fig. 1: fin defrost each the gas-distributing pipe of directly being in charge of on 2 through total gas 3 that to be the high temperature and high pressure gas that comes out from compressor be regardless of emphasis by air inlet pipe 1 gets into U type internal thread heat exchanger tube heat exchanger tubes tube bank 4 under the low temperature environment, gets back to liquid back pipe 6 through total collector tube 5 then.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 utility model technical issues that need to address have provided 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 utility model is realized through following technical scheme:
The utility model comprises: the high temperature and high pressure gas that compressor comes out is got into by air inlet pipe; Described air inlet pipe is through a few row U type internal thread heat exchanger tubes of finned heat exchanger bottom, be in charge of with total gas and link to each other again; Described total gas is in charge of through other U type internal thread heat exchanger tube of gas-distributing pipe entering finned heat exchanger; Described other U type internal thread heat exchanger tube links to each other with liquid back pipe through total collector tube.
Compared with prior art; The beneficial effect of the utility model is: adopted relatively the bottom of difficulty to begin the high-temperature high-pressure refrigerant gas from compressor to get into from the finned heat exchanger defrost earlier targetedly; Thereby improved defrost efficient; Also improve the heat transfer coefficient of unit, increased the heat exchange effect, improved the heat exchange efficiency of whole unit.
Description of drawings
Traditional finned heat exchanger structural representation that Fig. 1 uses for the prior art central air conditioner system.
Fig. 2 is the utility model structural representation.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described in further detail:
Visible by Fig. 2: the utility model comprises: the high temperature and high pressure gas that compressor comes out is got into by air inlet pipe 10; Described air inlet pipe 10 through a few row U type internal thread heat exchanger tubes 11 of finned heat exchanger bottom, be in charge of 12 with total gas again and link to each other; Described total gas is in charge of 12 through gas-distributing pipe 13 other U type internal thread heat exchanger tubes 14 of entering finned heat exchanger; Described other U type internal thread heat exchanger tube 14 links to each other with liquid back pipe 16 through total collector tube 15.
A few row U type internal thread heat exchanger tubes 11 of described bottom are 2-5 row.
The gas of the HTHP that the utility model comes out from compressor got into the gas-distributing pipe of other heat exchanger tube before this more respectively through the heat exchanger tube of finned heat exchanger bottom.
The utility model is used to pass through the serious heat exchanger tube of the finned heat exchanger a few row's frostings in bottom earlier from the gas of compressor HTHP when defrost; Solve serious, the scabrous problem of defrost problem of fin lower ends frosting under low temperature environment; Thereby increased defrost efficient, improved the operational efficiency of unit.

Claims (2)

1. finned heat exchanger, comprising: the high temperature and high pressure gas that compressor comes out is got into by air inlet pipe; It is characterized in that: described air inlet pipe is through a few row U type internal thread heat exchanger tubes of finned heat exchanger bottom, be in charge of with total gas and link to each other again; Described total gas is in charge of through other U type internal thread heat exchanger tube of gas-distributing pipe entering finned heat exchanger; Described other U type internal thread heat exchanger tube links to each other with liquid back pipe through total collector tube.
2. finned heat exchanger according to claim 1 is characterized in that: a few row U type internal thread heat exchanger tubes of described bottom are 2-5 row.
CN2011204304169U 2011-11-03 2011-11-03 Finned heat exchanger Expired - Lifetime CN202304115U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011204304169U CN202304115U (en) 2011-11-03 2011-11-03 Finned heat exchanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011204304169U CN202304115U (en) 2011-11-03 2011-11-03 Finned heat exchanger

Publications (1)

Publication Number Publication Date
CN202304115U true CN202304115U (en) 2012-07-04

Family

ID=46372999

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011204304169U Expired - Lifetime CN202304115U (en) 2011-11-03 2011-11-03 Finned heat exchanger

Country Status (1)

Country Link
CN (1) CN202304115U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103090596A (en) * 2011-11-03 2013-05-08 上海瀚艺冷冻机械有限公司 Fin-type heat exchanger

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103090596A (en) * 2011-11-03 2013-05-08 上海瀚艺冷冻机械有限公司 Fin-type heat exchanger

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GR01 Patent grant
CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20120704