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A pressure descaling method for a heat exchanger

A technology of heat exchanger and pressure, which is applied in the direction of indirect heat exchanger, heat exchanger type, clean heat transfer device, etc., can solve problems such as too long hysteresis cycle, and achieve improved heat exchange efficiency, optimal heating efficiency, and improved The effect of heating efficiency

Active Publication Date: 2022-04-05
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, in practice, it is found that if the vibration of the tube bundle is adjusted through fixed periodic changes, there will be hysteresis and the period will be too long or too short

Method used

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  • A pressure descaling method for a heat exchanger
  • A pressure descaling method for a heat exchanger
  • A pressure descaling method for a heat exchanger

Examples

Experimental program
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Embodiment Construction

[0026] A shell and tube heat exchanger such as Figure 5 As shown, the shell and tube heat exchanger includes a shell 11, a heat exchange component 10, a shell side inlet pipe 5 and a shell side outlet pipe 6; the heat exchange component 10 is arranged in the shell 11, and the heat exchange component It is fixedly connected to the front tube sheet 14 and the rear tube sheet 17; the shell side inlet pipe 5 and the shell side outlet pipe 6 are both arranged on the shell 11; the fluid enters from the shell side inlet pipe 5 and passes through the heat exchange components. For heat exchange, take over 6 from the shell side outlet.

[0027] The ends 18-20 at both ends of the lower tube box and the upper tube box are arranged in the openings of the front and rear tube plates 14 and 17 for fixing.

[0028] figure 1 A top view of the heat exchange component 10 is shown, such as figure 1 As shown, the heat exchange component 10 includes a lower tube box 2, an upper tube box 8 and a ...

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Abstract

The invention provides a pressure descaling method for a heat exchanger, which includes a casing, tube plates are respectively arranged at both ends of the casing, and a pressure detection element is arranged inside the heat exchange component to detect the pressure inside the heat exchange component. The pressure detection element is connected with the controller for data, and the controller controls whether the electric heater is heated according to the detected pressure. The method of the present invention can judge whether it has reached a stable state according to the internal pressure, and then intelligently control the heating of the electric heater according to the internal pressure, so that the internal fluid can realize frequent vibrations and achieve good descaling and heating effects .

Description

technical field [0001] The invention relates to a shell-and-tube heat exchanger, in particular to a shell-and-tube heat exchanger of intermittent vibration descaling. Background technique [0002] Shell and tube heat exchangers are widely used in chemical, petroleum, refrigeration, nuclear energy and power industries. Due to the global energy crisis, in order to reduce energy consumption, the demand for heat exchangers in industrial production is also increasing. The quality requirements for heat exchangers are also getting higher and higher. In recent decades, although compact heat exchangers (plate, plate-fin, pressure-welded plate heat exchangers, etc.), heat pipe heat exchangers, direct contact heat exchangers, etc. have been developed rapidly, due to the rapid development of shell-and-tube heat exchangers The heat exchanger has a high degree of reliability and wide adaptability, and it still occupies the dominant position in output and consumption. According to relevan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28D7/10F28G7/00F28G15/00
CPCF28D7/10F28G7/00F28G15/003
Inventor 张冠敏刘磊孙晨于耀朱玉熙邱燕冷学礼柏超魏民田茂诚张井志
Owner SHANDONG UNIV