Industrial Heat Exchanger Flooded Type

Shell and Tube Evaporator

The full-liquid shell-and-tube evaporator flows in the tube and the refrigerant evaporates outside the tube

tufts so that the heat transfer surface is substantially in contact with the liquid refrigerant. Generally, the

amount of refrigerant filled in the shell is about 55% to 65% of the effective volume of the cylinder. After

the refrigerant is vaporized and gasified, it is returned to the compressor by the liquid separator at the top

of the cylinder. The advantage is compact, easy operation and management, high heat transfer

coefficient.

The shortcomings are: ① refrigeration system evaporative temperature below 0 ℃, the tube water is easy

to freeze, destroy the evaporation tube; ② refrigerant charge; ③ by the height of the refrigerant column,

the bottom of the cylinder evaporation temperature is high, Will reduce the heat transfer temperature

difference; ④ evaporator cylinder will accumulate the bottom of the oil, there must be a reliable oil return

measures, or affect the safe operation of the system.

Dry type shell and tube type that is not full of liquid evaporator refrigerant flow in the tube, the water flow

outside the tube cluster. Refrigerant flow usually has several processes, due to the gradual gasification of

the refrigerant liquid, usually more upward, the more the number of process tubes. In order to increase

the water side of the heat transfer in the cylinder outside the heat transfer tube with a number of baffles,

so that the water several times across the tube flow. The advantages are: ① lubricants with refrigerant

into the compressor, generally there is no problem of oil accumulation ② filling less refrigerant, generally

only about 1/3 full liquid; ③ t0 near 0 ℃, the water will not freeze

FULL LIQUID TYPE EVAPORATOR AND CONDENSER EXTERNAL OIL

(DOUBLE CIRCUIT) CAPACITY: 800KW TO 2200KW

CONDENSER SERIES SINGLE CIRCUIT

CAPACITY: 75RT TO 100RT

COOPERATED CLENTS

WUHAN QIAOXIN REFRIGERATION EQUIPMENT CO., LTD. was founded in 2003, located in Wuhan Hubei

province, which is a professional manufacturing enterprise dedicated to R&D, design, production and

marketing of shell and tube condenser, evaporator and heat exchanger products etc. From the aspect of

technology, QIAOXIN always hold the leading position in domestic market.

QIAOXIN obtained Class I, Class II Pressure Vessel Design License and Pressure Vessel Manufacture

License, owned CNC machining center, CNC tube expander, CNC cutting machine and CO2 Flux Cored Gas

Shielded Welding etc series of advanced production equipments. QIAOXIN have a group of specialized

persons long engaged in the design and production of heat exchangers. Through long terms of technical

research, development and practice, different types and sizes of heat exchanger from design to production,

installation to test, QIAOXIN formed a complete set of management system. The rigorous design and precise

production, makes QIAOXIN can fulfill different operating requirements of customer and provide products

under various working condition. QIAOXIN also passed ISO9001:2008 international quality system certification,

through advanced quality management system strictly to control the whole process of product R&D, design,

production, inspection and service.

“Quality comes first, go for perfect”, after decades of development, QIAOXIN obtained great reputation not

only in domestic market, also spreads well in abroad. Products are exported to Europe and the United States

(owned PED certificate), Southeast Asia, Africa, and all over the country (including the "Midea" "Chigo"

"Dunham-bush" "TICA" and other well-known domestic air conditioning companies).

QIAOXIN always hold a strong sense of mission to the development of Chinese refrigeration technology, using

the most advanced refrigeration technologies, to realize the harmonious coexistence between man and

nature. On the road of development in the future, QIAOXIN will continue to adhere to the harmonious, healthy

and scientific development direction, following with the enterprise concept of "Ethics first, product second",

carrying with full enthusiasm to provide high cost performance products, outstanding product performance

and efficient services for the general customers.