Unlock instant, AI-driven research and patent intelligence for your innovation.

On-line leak detection device and method for heat exchanger

A technology of heat exchanger and leak detection, which can solve the problems of heat exchanger blasting and production loss by detecting the appearance of fluid at the leak point and measuring the liquid tightness by using liquid/vacuum degree

Active Publication Date: 2015-08-26
中广核太阳能开发有限公司 +1
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the leakage occurs inside the heat exchanger, it is not easy to be detected by the staff in time. Therefore, when the staff detects the internal leakage of the heat exchanger, the inside of the heat exchanger often has developed to the extent of explosion, which will cause serious losses to production.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • On-line leak detection device and method for heat exchanger

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] The present invention is described in detail below in conjunction with accompanying drawing:

[0029] like figure 1 As shown, the present invention provides an online leak detection device for a heat exchanger, which is used for heat exchangers in the field of photothermal power generation, including an acoustic wave conduction tube, an acoustic wave sensor, a preamplifier, a control host and The upper monitoring host; the bottom end of the sound wave conduction tube is in contact with the inner wall of the detected heat exchanger, the top end of the sound wave conduction tube is in contact with the sound wave sensor, and the output end of the sound wave sensor is connected with the preamplifier The input terminal of the control host is connected; the control host is also connected with the upper monitoring host. It also includes an alarm device; the alarm device is connected with the control host. It also includes a display and an input device; the display and the in...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides an on-line leak detection device and method for a heat exchanger. The device comprises a sound wave conduction pipe, a sound wave sensor, a preamplifier, a control mainframe and an upper monitoring mainframe. The bottom end of the sound wave conduction pipe is contacted with an inner wall of the detected heat exchanger, the top end of the sound wave conduction pipe is contacted with the sound wave sensor, the output end of the sound wave sensor is connected with the input end of the control mainframe through the preamplifier, and the control mainframe is further connected with the upper monitoring mainframe. The on-line leak detection device can perform accurate early-stage forecast on leakage of the heat exchanger, a leaking regional position and the leakage degree are judged, so that an operator can timely adopt preventive measures to avoid expansion of accidents and reduce losses caused possibly by the accidents.

Description

technical field [0001] The invention relates to a heat exchanger monitoring device, in particular to an online leak detection device and method for a heat exchanger. Background technique [0002] Heat exchanger is a device that transfers part of the heat of hot fluid to cold fluid. It is widely used in chemical industry, petroleum, power, food and many other industrial sectors, and plays an important role in production. [0003] In the field of solar thermal power generation, the internal leakage of heat exchangers such as oil-water heat exchangers and oil-salt heat exchangers is one of the major concerns for safe production and stable operation. There are many reasons for the leakage of heat exchangers, mainly including the temperature difference between cold and hot Leakage of the tube bundle caused by fluid, leakage caused by corrosion of the tube wall by the fluid, etc. Since the leakage occurs inside the heat exchanger, it is difficult for the staff to detect it in tim...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01M3/24
Inventor 顾益民张玉霞邱河梅李明
Owner 中广核太阳能开发有限公司