Method for controlling three-valve heat exchanger through flow velocity memory

A technology of memory control and heat exchanger, which is applied in the field of shell-and-tube heat exchangers and gas heat-exchanging shell-and-tube heat exchangers, can solve the problems of poor vibration heat exchange effect and low intelligence, and achieve good results Descaling and heat exchange effect, enhanced heat transfer, and improved descaling effect

Pending Publication Date: 2021-12-07
QINGDAO UNIV OF SCI & TECH
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009]In the previous application, a shell-and-tube heat exchanger has been developed for heat exchange of four fluids, but the above-m

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  • Method for controlling three-valve heat exchanger through flow velocity memory
  • Method for controlling three-valve heat exchanger through flow velocity memory
  • Method for controlling three-valve heat exchanger through flow velocity memory

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Embodiment Construction

[0038] A shell-and-tube heat exchanger, such as figure 1 As shown, the shell-and-tube heat exchanger includes a shell 20, a heat exchange component 23, a shell side inlet connection 21 and a shell side outlet connection 22; the heat exchange component 23 is arranged in the shell 20, and the heat exchange component It is fixedly connected to the front tube sheet 16 and the rear tube sheet 19; the shell-side inlet connecting pipe 21 and the shell-side outlet connecting pipe 22 are both arranged on the shell 20; the fluid enters from the shell-side inlet connecting pipe 21 and passes through the heat exchange components For heat exchange, take over the outlet pipe 22 on the shell side to go out.

[0039] Preferably, the heat exchange component extends along the vertical direction. The heat exchangers are arranged vertically.

[0040] Preferably, said shell-side fluid is a gas. The gas is preferably air, or carbon dioxide gas.

[0041] figure 2 A top view of the heat exchang...

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Abstract

The invention provides a method for controlling a three-valve heat exchanger through flow velocity memory. The method comprises the following steps that a first valve, a second valve and a third valve are arranged at inlets of a first heat exchange tube, a second heat exchange tube and a third heat exchange tube, speed data of a speed sensor are stored in a database in real time, data characteristics are extracted by adopting a one-dimensional deep convolutional neural network, and mode recognition is carried out, so that opening and closing of the first valve, the second valve and the third valve are controlled, and whether heat exchange is carried out on the first fluid, the third fluid and the second fluid or not is controlled. The invention provides a novel system for intelligently controlling vibration descaling of a heat exchange device, based on a theoretical method of machine learning and mode recognition, according to different operation conditions of the heat exchanger, the corresponding working state of the heat exchanger is designed by utilizing speed data with time correlation in a centralized heat exchanger real-time monitoring system, and the deep convolutional neural network is trained by using a large amount of speed data so as to control heat exchange and descaling of the heat exchanger.

Description

technical field [0001] The present invention is a further improvement of the previous application, which is applied to the field of heat exchangers. The invention relates to a shell-and-tube heat exchanger, in particular to a shell-and-tube heat exchanger for gas heat exchange. Background technique [0002] The invention relates to descaling of heat exchangers, which is a new invention of shell-and-tube heat exchangers based on the research and development of Qingdao University of Science and Technology (application number 2019101874848). [0003] Shell-and-tube heat exchangers are widely used in chemical, petroleum, refrigeration, nuclear energy and power industries. Due to the worldwide 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, press-w...

Claims

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Application Information

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IPC IPC(8): F28D7/16F28F27/02
CPCF28D7/1669F28F27/02Y02P20/10
Inventor 王逸隆
Owner QINGDAO UNIV OF SCI & TECH
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