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Leakage detecting and alarming device for niacin storing tank and ammonia reacting tank

A technology of leak detection and alarm device, applied in measuring device, electrical transmission signal device, fluid tightness test and other directions, can solve problems such as cost increase, inconvenient connection, operator personal injury, etc., to achieve system economy and convenient maintenance , the effect of wide detection range

Inactive Publication Date: 2008-01-30
HEBEI UNIV OF TECH
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  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Hand-held detection instruments require the operator to enter the site where leakage may occur. Once a gas leak occurs, the site environment will be very harsh, which will easily cause personal injury to the operator.
In addition, in the existing leakage alarm system, most of the alarm methods used are fixed
The fixed alarm method is to convert the detected leaked gas into an electrical signal through the sensor, and then transmit it to the monitoring center through a wired method. The monitoring center has corresponding alarm lights or alarm bells to generate alarm signals. This way As the distance between the site and the monitoring center increases, it will cause inconvenience in connection and other aspects, and the cost will increase accordingly

Method used

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  • Leakage detecting and alarming device for niacin storing tank and ammonia reacting tank
  • Leakage detecting and alarming device for niacin storing tank and ammonia reacting tank

Examples

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Embodiment Construction

[0015] In order to further understand the content, characteristics and effects of the present invention, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:

[0016] After a specific analysis of the leakage sites of the nicotinic acid storage tank and ammonia reaction tank in a chemical fiber factory and past experience judgments, a specific plan was determined: a three-layer unit structure was adopted. The ground floor unit consists of 12 ground floor modules. The internal materials of the niacin storage tank and the ammonia reaction tank were analyzed, and it was concluded that once a leak occurs, the gas leaked in the niacin storage tank is SO2, and the gas leaked in the ammonia reaction tank is NH3 and NO2. Since there are 8 nicotinic acid storage tanks, one SO 2 Each sensor uses a bottom module, and the composition diagram of each bottom module is shown in Figure 1.

[0017] The connection between the...

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Abstract

An alarm device of leakage detection for nicotinc acid storage tank and ammonia reaction tank is featured as obtaining electric analog signal of leaked gas by detecting with transducer, converting signal to be digital signal by A / D conversion, processing the digital signal with monolithic computer and sending it monitoring center by radio transmission module. The device consists of receiving and processing unit as well as collecting and transmitting unit of leakage signal.

Description

technical field [0001] The invention belongs to a chemical gas leakage detection and alarm device, in particular to a leakage detection and alarm device with a nicotinic acid storage tank and an ammonia reaction tank. Background technique [0002] There are many harmful substances in chemical, petroleum, dyestuff and other industries, including flammable, explosive and toxic gases and liquids (such as liquefied petroleum gas, ammonia, chlorine and hydrogen sulfide, sulfur dioxide, nitrogen dioxide, etc.), if in production or Leakage of these dangerous substances due to operational errors or other reasons during transportation will cause great harm to residents and the environment. In the currently known gas detection schemes, there are two types of gas detection instruments: hand-held and fixed. Hand-held detection instruments require the operator to enter the site where leakage may occur. Once a gas leak occurs, the site environment will be very harsh, which will easily ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08C17/02G01M3/00G08B1/08
Inventor 孙立新张明路孙凌宇
Owner HEBEI UNIV OF TECH
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