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Wuhan Qiaoxin Refrigeration Equipment CO., LTD
Wuhan Qiaoxin Refrigeration Equipment Co., Ltd. Shell and Tube Heat Exchanger Expert
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Anti - Corrision Dry Heat Exchanger , Commercial Straight Tube Heat Exchanger

Wuhan Qiaoxin Refrigeration Equipment CO., LTD
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Wuhan Qiaoxin Refrigeration Equipment CO., LTD
City: Wuhan
Province/State: Hubei
Country/Region: China
Tel: 86-27-8337-2526

Anti - Corrision Dry Heat Exchanger , Commercial Straight Tube Heat Exchanger

Brand Name : GREEFOUN
Model Number : QXE80
Certification : CE
Place of Origin : CHINA
MOQ : 1piece
Payment Terms : T/T, L/C, Western Union
Supply Ability : 100000pieces/year
Delivery Time : within 15days
Packaging Details : Standard export package
Refrigerant : R22/R134a/R407C/R410A
Refrigerating medium : tap/underground/river/sea water, brine, glycol/sulfate solution
Shell material : seamless/304,316Lstainless steel pipe
Cooling capacity : 3KW~3000KW
Performance : anti-corrision, anti-acid
Heat exchange tube : red copper/copper nickel alloy/aluminum brass tube etc
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Dry Type Shell and Tube Heat Exchanger


Water - Cooled Tube Heat Exchanger

The evaporator is one of the main heat exchange equipment in the refrigeration equipment for the heat

exchange between the refrigerant and the cooled medium. The dry horizontal shell and tube evaporator is

the most commonly used. Dry horizontal shell and tube evaporator is mainly used for freon refrigeration

system, in which the refrigerant along the shell flow, refrigerant liquid flow along the pipeline, the

refrigerant filling less. Commonly used in the project are straight tube and U-tube. A. Freon with a straight

tube dry evaporator: refrigerant liquid after throttling from the end of the end of the evaporator inlet into

the pipe, after 2-4 processes after the end of the end of the same side of the end of the outlet The

Refrigerant in the straight tube dry evaporator flow of a single into a single, double into a single, double

into the double and other different forms. Straight tube type evaporator on the level of smooth copper

tube sets with a number of inverted array of cut off the arch area of ​​the circular baffle. The coolant flows

along the pipe under the guidance of the shell-shaped round baffle, and flows out above the other end (or

side) of the barrel. Since the heat dissipation coefficient of the refrigerant inside and outside the heat

transfer tube is different from that of the refrigerant, various types of fins are often used to enhance the

heat transfer of the evaporator. B. U-tube dry evaporator: it consists of a number of different radius U-

shaped tube, the opening of these U-shaped tube expansion in the same tube plate, the other structure

and straight tube similar. In the U-tube dry evaporator, the refrigerant liquid is throttled and enters from

the lower part of the end cap, and is sucked out from the upper end of the end cap after two processes.

The advantage is that the internal stress is not caused by the difference in the expansion rate of the

different materials and the U-shaped tube bundle can be easily pumped out. Dry-type evaporator liquid

charge is generally about 40% of the volume of the tube, obviously less than the full liquid evaporator, so

the refrigerant liquid static pressure is less affected, easy drainage, cold refrigerant will not swell Cracking

heat pipe; also has a compact structure, high heat transfer coefficient. But the refrigerant in the tube

group is not easy to liquid evenly, the baffle outside the shell and the shell is easy to produce refrigerant

leakage bypass, affecting its heat transfer effect.


DRY TYPE TUBE HEAT EXCHANGER EVAPORATOR (DOUBLE MACHINE)


CAPACITY: 120KW TO 310KW

ModelsQXU120D8QXU135D8QXU155D8QXU185D10QXU220D10QXU270D10QXU310D10

Rated data
Refrigerant R22

ti=12°C te=2°C

tu=7°C Dts=5°C

QnKW120135155185220270310
Kcal/h(×103 )103.2116133.3159189232267
Wnm3 /h20.623.226.731.837.846.453.3
Wmm3 /h25283041436568
Dpnbar0.410.440.370.360.430.420.43

ModelsQXU120D8QXU135D8QXU155D8QXU185D10QXU220D10QXU270D10QXU310D10
Dimension(mm)A1815211523152320232026542654
B219219219219273273273
C200200200200234234234
D1530183020302000200022802280
E240240240300300300300
VentS11/21/21/21/21/21/21/2
OutletS21/21/21/21/21/21/21/2
ConnectionW(DN)89898989114114114
D1(mm)22222222353535
D2(mm)42424242545454
P(kg)145155163232255279296

Qn-rated refrigerating capacity Wn-cooling water flow Wm-maximum cooling water flow

Dpn-pressure drop of recirculating cooling water Dts-overheat temperature


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straight tube heat exchanger

      

dry type evaporator

      
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