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

A system and method for monitoring, alarming and switching ammonia gas based on chromatographic analysis

A chromatographic analysis and switching system technology, which is applied in the field of gas detection and alarm, can solve problems such as potential safety hazards for on-site production workers and reduce the quality of silane products, achieve high application and promotion significance, avoid environmental pollution problems, and improve the effect of safety.

Active Publication Date: 2016-06-29
NANJING SPECIAL GAS FACTORY
View PDF8 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once the ammonia gas is not well controlled or leaks, it will not only reduce the quality of silane products, but also easily cause environmental pollution, which will bring great safety hazards to the on-site production staff

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
  • A system and method for monitoring, alarming and switching ammonia gas based on chromatographic analysis
  • A system and method for monitoring, alarming and switching ammonia gas based on chromatographic analysis
  • A system and method for monitoring, alarming and switching ammonia gas based on chromatographic analysis

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] System embodiment 1: like figure 1 and figure 2 As shown, the ammonia monitoring alarm and switching system based on chromatographic analysis provided by Embodiment 1 of this system includes the intake pipe of the first monitoring point, the intake pipe of the second monitoring point, the sampling gas pump 3, the six-way flat valve, the chromatographic column 6, Thermal conductivity detector 7, monitoring alarm platform and purifier switching device; the six ports of the six-way planar valve are numbered clockwise in sequence: port one to port six; the ports of the six-way planar valve A quantitative tube 5 is connected between the first port and the fourth port.

[0036] The inlet pipe of the first monitoring point is arranged at the outlet of the purifier, and the inlet pipe of the second monitoring point is arranged in the ammonia tank area. The inlet pipe of the first monitoring point communicates with the sampling air pump through the first electromagnetic val...

Embodiment 2

[0042] System embodiment 2: The ammonia monitoring alarm and switching system based on chromatographic analysis provided in this embodiment includes the first monitoring point inlet pipe, sampling gas pump, six-way flat valve, chromatographic column, thermal conductivity detector, monitoring alarm platform and purifier switching device; The six ports of the six-way planar valve are numbered clockwise in sequence: port one to port six; a quantitative tube is connected between port one and port four of the six-way planar valve;

[0043] The inlet pipe of the first monitoring point communicates with the sampling gas pump through the first electromagnetic valve; the output of the sampling gas pump communicates with port 6 of the six-way planar valve; port 2 of the six-way planar valve communicates with the carrier gas pipe, Port five is connected to the emptying pipe; port three of the six-way planar valve and the monitoring and alarm platform are sequentially connected with a ch...

Embodiment 3

[0049] System embodiment 3: It is basically the same structure as any one of system embodiment 1 and system embodiment 2, and the similarities will not be described again. The difference is that it includes two or more monitoring point air intake pipes, and each monitoring point air intake pipe passes through Their corresponding solenoid valves are connected with the sampling air pump; a pneumatic multi-way valve can be configured between each solenoid valve and the sampling air pump according to the actual structure for the selection of the inlet pipe of the monitoring point. The electromagnetic valves connected to the air intake pipes of the monitoring points are all connected to the circuit of the monitoring and alarm platform.

[0050] The purifier switching device includes a mixed gas inlet, a second controller and more than two groups of purifiers; the inlets of each group of purifiers communicate with the mixed gas inlet through their corresponding electromagnetic valv...

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 discloses a system and method for monitoring, alarming and switching ammonia gas based on chromatographic analysis. Switching device; the monitoring and alarm platform is connected with the purifier switching device, the first electromagnetic valve, the sampling gas pump and the six-way plane valve circuit. The invention can realize the detection and alarm of ammonia gas at multiple monitoring points such as the ammonia tank area or the outlet of the purifier. Once ammonia gas leakage occurs, an alarm can be issued at the first time to remind and deal with it in time, which improves the safety of the operation, and at the same time The problem of environmental pollution is effectively avoided; at the same time, the flexible selection and switching of sampling points is possible. Furthermore, the monitoring and alarm platform can also output switching signals to the purifier switching device to perform automatic switching of the purifier, which greatly improves the effect and efficiency of purification, and has high application and promotion significance.

Description

technical field [0001] The invention relates to the field of gas detection and alarm, in particular to an ammonia gas monitoring, alarm and switching system and a corresponding monitoring, alarm and switching method. Background technique [0002] As we all know, the silane production process of magnesium silicide method is inseparable from ammonia. Usually, in the environment of liquid ammonia, magnesium silicide alloy reacts with ammonium chloride to generate silane and ammonia gas, and then the ammonia and silane are separated at low temperature, and the residual ammonia passes through the molecular sieve purification system. Remove. [0003] Throughout the production process, there are liquid ammonia storage tanks, silane reaction waste residue tanks, ammonia gas tank farms, etc., including ammonia pipelines and valves, etc., and ammonia exists in every production link. Once the ammonia gas is not well controlled or leaks, it will not only reduce the quality of silane pr...

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): G01N30/02G01N30/66
Inventor 林培川
Owner NANJING SPECIAL GAS FACTORY