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Wuhan Qiaoxin Refrigeration Equipment CO., LTD
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Cotton Insulation Tubular Heat Exchanger Double Circuit Air Conditioning System

Wuhan Qiaoxin Refrigeration Equipment CO., LTD
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Cotton Insulation Tubular Heat Exchanger Double Circuit Air Conditioning System

Brand Name : GREEFOUN
Model Number : QXU148S8
Certification : CE
Place of Origin : CHINA
MOQ : 1piece
Payment Terms : TT, L/C, Western Union
Supply Ability : 100000pieces/year
Delivery Time : within 15days
Packaging Details : Standard Export Package
Refrigerant : R134a
Connection type : tenon surface
Refrigerating medium : tap/underground/river/sea water, brine, glycol/sulfate solution
Cooling capacity : 18KW~4000KW
Heat exchange tube : Copper nickel alloy
Application : Refrigeration industry
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Cotton Insulation Tubular Heat Exchanger Double Circuit


Air Conditioning System


Soil Heat Exchanger Ground Source Air Conditioning System.

This air conditioning system is the heat exchanger buried in the ground, through the water in the high-

strength plastic pipe composed of closed loop circulation, in order to achieve the purpose of hot and cold

with the earth soil exchange.

Summer through the unit will be the heat transfer to the ground, the room for cooling. While storing heat

for winter use. In winter, the heat in the soil is transferred to the room through the heat pump, and the

room is heated and stored for the summer.

The earth's soil provides a good free energy storage source, thus realizing the seasonal transformation of

energy. Vertical Buried Ground Source Heat Pump System Horizontal Buried Ground Source Heat Pump

System

<1> Principle of Operation: Ground Source Heat pump air conditioning is a "heat pump" (cooling, heating).

Heating, it absorbs geothermal discharge to the user, this process consumes only a small amount of

power, as shown in Figure 1. Cooling, it absorbs the user's indoor heat to the underground discharge,

also consumes a small amount of heat.

<2> unit operation process: the winter heat pump in the positive flow of refrigerant, the compressor

discharge of high temperature and high pressure R22 gas into the condensation To the water in the water

collector to release heat, the phase change to high temperature and high pressure of the liquid, and then

by the thermal expansion valve throttle pressure into low temperature and low pressure liquid into the

evaporator, from the underground circulating fluid to absorb low temperature heat phase change Low

temperature and low pressure saturated steam into the compressor suction side, compressed by the

compressor to discharge high temperature and high pressure gas to complete a cycle. So the cycle of

underground low-temperature heat "handling" to the sump, which continue to provide users with 45 ℃ -50

℃ hot water.

3. Summer heat pump in the reverse flow of refrigerant, and the user heat exchanger into the evaporator

from the collector in the low-temperature water (7-12 ℃) to extract heat, and underground heat exchanger

evaporator into the condenser to the Underground circulation liquid discharge heat, circulating fluid heat

and then to the underground low-temperature area emissions, so the cycle to continue to provide users

with 7-12 ℃ cold water.


U SHAPED TUBE DRY EVAPORATOR (DOUBLE CIRCUIT)


CAPACITY: 120KW TO 310KW

ModelsQXU120D8QXU135D8QXU155D8QXU185D10QXU220D10QXU270D10QXU310D

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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