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Tube and tube heat exchanger (GLL/GLC/OR/SL/GL/LQ)
Tube and tube heat exchanger (GLL/GLC/OR/SL/GL/LQ)
Product details
We can customize various types of tubular heat exchangers ranging from 0.5 to 200 square meters according to customer needs.
Application scope of tubular heat exchanger
Lubricating oil and hydraulic oil used in cooling systems in industries such as metallurgy, mining, cement, electricity, light industry, food, chemical, and papermaking are used in various fields.
Structural characteristics of tubular heat exchanger
1. The tubular heat exchanger adopts a bare tube (surface without rolled fins) heat transfer tube, which has a high heat transfer coefficient of the outer membrane and strong anti pollution ability.
2. The cooling tubes of the tubular heat exchanger are made of high-quality copper tubes and processed into fin shaped heat dissipation fins, with small product volume and large heat exchange area.
3. The spiral guide plate of the tubular heat exchanger enables the cooled liquid to roll continuously and uniformly in a spiral shape, overcoming the heat exchange efficiency caused by the baffle plate.
4. The tubular heat exchanger adopts an expansion tube sealing method, which overcomes the adverse changes caused by high-temperature welding of materials.
5. The tubular heat exchanger has good structural performance, stable sealing performance, high heat transfer efficiency, compact structure, and small footprint.
fixed tube sheet type
Tubular heat exchangerThe structure is relatively simple, compact, and cost-effective, but the outside of the pipe cannot be mechanically cleaned. This type of heat exchanger tube bundle is connected to the tube plate, which is welded to both ends of the shell and connected to end caps. The end caps and shell are equipped with fluid inlet and outlet connections. Usually, a series of baffles perpendicular to the tube bundle are installed outside the tube. At the same time, the connection between the tube and the tube plate and the outer shell is rigid, while the inside and outside of the tube are two different temperature fluids. Therefore, when the temperature difference between the tube wall and the shell wall is large, due to the different thermal expansion of the two, a large temperature difference stress is generated, which can cause the tube to twist or loosen from the tube plate, and even damage the heat exchanger.
In order to overcome temperature difference stress, a temperature difference compensator is necessary. Generally, when the temperature difference between the pipe wall and the shell wall is more than 50 ℃, for safety reasons, the heat exchanger should have a temperature difference compensation device. But the compensation device (expansion joint) can only be used when the temperature difference between the shell wall and the pipe wall is below 60-70 ℃ and the fluid pressure in the shell side is not high. When the shell side pressure exceeds 0.6Mpa, due to the excessive thickness of the compensation ring, it is difficult to expand and contract, and the effect of temperature difference compensation is lost. Therefore, other structures of heat exchangers should be considered.
The heat transfer tubes of the tube heat exchanger are made of copper tubes (stainless steel tubes, etc.) rolled out with heat dissipation fins, which have a large heat transfer area, small product volume, and light weight. Oil cooler is suitable for cooling low viscosity and relatively clean oil; Tube and tube heat exchangers can be applied in industries such as plastic machinery, hydraulic equipment, air compressors, oil lubrication systems, hydraulic couplings, and power equipment. This series of oil coolers can be designed and manufactured according to customer requirements, ranging from small to medium to large, with a wide coverage range.Application scope of tubular heat exchanger
Lubricating oil and hydraulic oil used in cooling systems in industries such as metallurgy, mining, cement, electricity, light industry, food, chemical, and papermaking are used in various fields.
Structural characteristics of tubular heat exchanger
1. The tubular heat exchanger adopts a bare tube (surface without rolled fins) heat transfer tube, which has a high heat transfer coefficient of the outer membrane and strong anti pollution ability.
2. The cooling tubes of the tubular heat exchanger are made of high-quality copper tubes and processed into fin shaped heat dissipation fins, with small product volume and large heat exchange area.
3. The spiral guide plate of the tubular heat exchanger enables the cooled liquid to roll continuously and uniformly in a spiral shape, overcoming the heat exchange efficiency caused by the baffle plate.
4. The tubular heat exchanger adopts an expansion tube sealing method, which overcomes the adverse changes caused by high-temperature welding of materials.
5. The tubular heat exchanger has good structural performance, stable sealing performance, high heat transfer efficiency, compact structure, and small footprint.
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