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Floating head heat exchanger

The tube sheets at both ends of the floating head heat exchanger are not connected to the shell at one end, and this end is called the floating head. When the tube is heated, the tube bundle together with the floating head can freely expand and contract along the axial direction, completely eliminating the temperature difference stress.

Commodity name： Floating head heat exchanger

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Product Details

产品描述

1. Overview

The tube sheet at one end of the floating head heat exchanger is fixed to the shell, while the tube sheet at the other end can float freely in the shell. The shell and the tube bundle are free to expand. Therefore, when the temperature difference between the two media is large, no temperature difference stress is generated between the tube bundle and the shell. The floating head end is designed as a detachable structure so that the tube bundle can be easily inserted or pulled out of the shell.

2. Parameters

No.	Parameters	Unit	Description
1	Design flow rate	m³/h	Design flow rate of each fluid channel
2	Shell diameter	mm	Inner diameter of the shell
3	Tube outer diameter	mm	Outer diameter of the pipe
4	Tube inner diameter	mm	Inner diameter of the pipe
5	Number of tube passes	-	Number of pipes
6	Heat transfer area	m²	Total heat transfer area of the entire heat exchanger
7	Heat transfer coefficient(U)	W/m²·K	Total heat transfer coefficient (considering multiple factors such as wall surface and fluid)
8	Operating temperature	°C	Design operating temperature range of shell and tube fluids

3. Advantages and Disadvantages

3.1. Advantages

(1) The tube bundle can be pulled out to facilitate cleaning of the tube and shell side;

(2) The temperature difference between the media is not restricted;

(3) It can work under high temperature and high pressure, generally the temperature is less than or equal to 450 degrees and the pressure is less than or equal to 6.4 MPa;

(4) It can be used in places where scaling is relatively serious;

(5) It can be used in places where the tube side is prone to corrosion. [1]

3.2. Disadvantages

(1) Small floating heads are prone to internal leakage;

(2) Large consumption of metal materials, 20% higher cost;

(3) Complex structure

4. Schematic diagram

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