Chemical And Alcohol Production Tubular Heat Exchanger

Tubular heat exchanger working principle

Tubular heat exchanger is the most widely used heat exchanger on chemical and alcohol production. It is mainly composed of shell, tube plate, heat exchange tube, head, baffle and so on. Required material, can be made of ordinary carbon steel, copper, or stainless steel.

During heat exchange, a fluid enters through the connecting pipe of the head, flows in the pipe, and flows out through the outlet pipe at the other end of the head. Another fluid enters by the nozzle of the shell and flows out from another nozzle on the shell. This is called the shell process.

Tubular heat exchanger structure

The structure of the tubular heat exchanger is simple, compact and cheap, but the outside of the tube can not be cleaned mechanically. The tubular heat exchanger bundle is connected to the tube plate, which is welded to both ends of the shell respectively, and is connected to the top cover. The top cover and the shell are provided with a fluid inlet and outlet pipe.

A series of baffles perpendicular to the tube bundle are usually arranged outside the tube. At the same time, the connection between tube and tubesheet and shell is rigid, while outside the tube are two kinds of fluid with different temperature. Therefore, when the temperature difference between the tube wall and the shell wall is large, due to the thermal expansion of the two are different, a large thermal stress is generated, so that the tube twists or loosens the tube from the tube plate, or even destroys the tubular heat exchanger.

Temperature compensation device is must in order to overcome the temperature stress, generally while the tube wall and the wall temperature is 50 ℃ above, tubular heat exchanger should have temperature compensation device for safety.

However, the compensation device (expansion joint) can only be used when the temperature difference between shell wall and tube wall is less than 60 ~ 70℃ and the fluid pressure in shell path is not high. When the pressure in shell passage exceeds 0.6mpa, other structures should be considered because the compensation ring is too thick and it is difficult to expand and lose the function of temperature compensation.

Our Workshop

Our Company

JIANGSU LIANZHONG METAL PRODUCTS (GROUP) CO., LTD
Lianzhong has been focusing on the research and development of chemical reaction equipment for many years, and has rich experience in the application of kettle reactors, ethoxylation reactors, tubular reactors and microchannel reactors.
Lianzhong has been focusing on the research and development of chemical reaction equipment for many years, and has rich experience in the application of kettle reactors, ethoxylation reactors, tubular reactors and microchannel reactors.

Packing & Delivery

FAQ

1. Q: What is the MOQ? Can I place small order please ?
A: Small order is also welcome in our company.

2. Q: How long warranty can we have for my orders
A: One year warranty for all products, 2 years warranty available for some specific orders.

3. Q: What service can you provide ?
A: We will confirm all details with you before payment, any changes will let you know in advance, any progress will show you photos and video for your reference and will let you know your order’s status. Will send draft documents for your reference before issuing official document.

4. Q, How do you control quality ?
A:we passed ISO 9001 We are serving hundreds customers whom from 40+countries around the world. All products will be 100% tested before shipping out.