Filling controller of hazardous chemical gas cylinder
A technology for hazardous chemical gas cylinders and controllers, which is applied in container filling methods, gas/liquid distribution and storage, and container discharge methods, etc., can solve the problems of troublesome supervision, poor supervision accuracy, and low supervision work efficiency. The effect of convenient supervision, good supervision accuracy, and high supervision work efficiency
Inactive Publication Date: 2010-07-14
辽宁省标准化研究院
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Problems solved by technology
In the prior art, the supervision of the filling of hazardous gas cylinders is very simple. Most of the hazardous gas cylinders are numbered within a certain range of use, manually recorded, and manually inquired to determine whether the hazardous gas cylinders meet the inflation requirements. Whether to open the air valve at the inflation port to inflate the hazardous gas cylinder
This method of supervising the inflation of hazardous gas cylinders is completely manual, with a large influence of human factors, troublesome supervision, low supervision efficiency, and poor supervision accuracy. It is difficult to supervise medium-hazardous chemical gas cylinders in a large range , A little carelessness in checking the safety performance of gas cylinders during the filling process can easily lead to filling gas cylinders with potential safety hazards
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[0021] figure 1 , figure 2 Among them, the hazardous gas cylinder filling control instrument has a housing 1 with a power input terminal 2, an inflation signal input terminal 3, four switch signal output terminals 4, a circuit board 5 inside the housing, and an inflation valve on the circuit board. Control circuit,
[0022] The inflation control circuit has a single-chip microcomputer circuit DPJ connected, a drive circuit DCF and a power supply circuit GD,
[0023] The input end of the power supply circuit is connected to the mains input end on the shell, and the output end of the power supply circuit has the live wire output end of 220 volt mains power +220V, the live wire output end of 220 volt mains power -220V and the Vcc volt output end 5V,
[0024] The single-chip microcomputer circuit has a single-chip microcomputer U1 whose model is STC89C52. The single-chip microcomputer is connected with a clock circuit 6, a reset circuit 7 and a serial communication module U2 wh...
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The invention relates to a filling controller of a hazardous chemical gas cylinder. A commercial power input end, an air-filing signal input end and a switch signal output end are arranged on the shell of the filling controller; a circuit board is arranged in the shell and provided with an air-filing control circuit; the air-filing control circuit comprises a single chip microcomputer circuit and a drive circuit which are connected, a single chip microcomputer is connected with a serial communication module, the P0 port of the single chip microcomputer is connected with the drive circuit; the drive circuit comprises a triode circuit and an optocoupler circuit which are connected together, the base circuit of the triode is connected with the P0 port of the single chip microcomputer, the input end of the optocoupler circuit is connected in the emitter circuit of the triode in series, and the output end of the optocoupler circuit is connected with the switch signal output end of the shell. When the filling controller of the invention is used for filling gas in a hazardous chemical gas cylinder which meets air-filing demands, the single chip microcomputer outputs a control signal to the drive circuit and the drive circuit outputs an opening signal of an electromagnetic valve. When the hazardous chemical gas cylinder is monitored, no influence of the personal factor is caused, supervision and execution are convenient, the working efficiency and accuracy are high, and the monitoring range is wide.
Description
technical field [0001] The invention relates to a monitoring device for a hazardous gas cylinder, in particular to a filling control instrument for a hazardous gas cylinder. Background technique [0002] Liquid chlorine, liquid nitrogen, acetylene, oxygen, natural gas, liquefied petroleum gas and other chemical gases are toxic, flammable and explosive dangerous chemical gases. Sometimes it is stored in a steel cylinder under high pressure. This kind of steel cylinder containing dangerous chemical gases is called a hazardous chemical gas cylinder. LPG steel cylinders are large in quantity and widely used. A large number of scattered hazardous gas cylinders in the society are a big hidden danger of safety accidents. For the safety of people's production and life, safe and reliable supervision of hazardous gas cylinders should be implemented. Hazardous gas cylinders have product quality standards. Hazardous gas cylinders need to be tested regularly during use. Hazardous gas ...
Claims
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IPC IPC(8): F17C13/02
Inventor 王德海杨立宏赵云志王良泉梁旭昱洪伟王雪
Owner 辽宁省标准化研究院
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