Leakage detecting and alarming device for niacin storing tank and ammonia reacting tank
A leakage detection and alarm device technology, which is applied in measuring devices, electrical transmission signal devices, fluid tightness testing, etc., can solve problems such as cost increase, inconvenient connection, operator personal injury, etc., and achieve system economy and convenient maintenance , the effect of wide detection range
Inactive Publication Date: 2005-07-27
HEBEI UNIV OF TECH
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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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[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 adopts a bottom module, and the composition diagram of each bottom module is as follows figure 1 shown.
[0017] The connection ...
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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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Login to View More IPC IPC(8): G01M3/00G08B1/08G08C17/02
Inventor 孙立新张明路孙凌宇
Owner HEBEI UNIV OF TECH