R & DSafety measures for pressure testing of nitrogen generator and downhole nitrogen injection pipeline
Article Source：Suzhou Shenyue Purification Website：www.szshenyue.comTime：2017-3-15Pageviews
：840
Core prompt：Nitrogen making machine and underground nitrogen injection pipeline have been installed. According to the arrangement of the project, the pressure test should be carried out. In order to ensure the safety of nitrogen injection, safety technical measures s
Nitrogen making machine and underground nitrogen injection pipeline have been installed. According to the arrangement of the project, the pressure test should be carried out. In order to ensure the safety of nitrogen injection, safety technical measures should be formulated.
A pressure test and nitrogen injection route: nitrogen injection to 730 pumping station, auxiliary transportation roadway, mining area, 850 yards, rail Hill 1110 track roadway to 1111 coal face road
Two. Arrangement of nitrogen injection pressure test time:
Three, the relevant parameters: nitrogen concentration is not less than 97%, nitrogen injection pressure is not greater than 0.8MPa.
Four, safety technical measures
1, from the ground by nitrogen injection pump auxiliary nitrogen injection pipelines to the well pipe pressure test on nitrogen.
2, in order to prevent the emission of nitrogen, the nitrogen injection pressure test during each class at least send a rescue team in nitrogen injection along the pipe at the monitoring warning, CH4, always carry a multifunctional gas measurement instrument CO and O2 gas concentration detection.
3, during the nitrojection ventilation area of each class to arrange for a management cadres to on-site inspections, once the wind and wind vortex location CO concentration of more than 0.0024% or less than 18.5% oxygen concentration, the ambulance crew must immediately organize personnel to evacuate threatened locations, report the scheduling process.
4, nitrogen injection pipeline three way valve closed, and hanging "nitrogen injection dangerous, prohibit opening" signs, to prevent personnel mistakenly open, so as to avoid nitrogen leakage, causing personnel injury.
6, in order to ensure that nitrogen does not leak or less leakage, along the nitrogen injection line to pull the warning line, hang a warning card, marked on the warning sign "nitrogen injection dangerous, prohibited entry" logo.
7, nitrogen injection pressure test staff once there is shortness of breath and other signs of hypoxia, should immediately withdraw to the fresh air.
8, the ground beam tube monitoring system monitoring and analysis of gas composition, monitoring oxygen concentration, verify the nitrogen injection effect.
9, nitrogen injection pump personnel arrangement: nitrogen injection driver one. Department of mechanical and electrical foreman two, responsible for the nitrogen injection pipeline inspection, if there is any problems.
10, the nitrogen injection pump driver per hour check record of a nitrogen injection pump parameters of nitrogen injection pump driver to implement the scene shift system, may not leave when the equipment is running.
11, the threatened area: 730, auxiliary transportation roadway, mining, road, rail Hill 850 yard 1110 track roadway to 1111 coal face along the roadway.
12, route for avoiding disaster: 1111 coal face, 1110 belt lane and 111 mountains, 730 pedestrian ventilation tape transportation roadway - 730, 730 - Crossheadings, auxiliary transportation roadway to the ground
13, the nitrogen injection pressure test during the wind vortex are prohibited from entering the area, personnel must carry can detect O2 CH4 portable, and hung on the location above; or notify the monitoring personnel to check the concentration of oxygen, only the oxygen concentration in the above 18.5% can enter.
14, other implementation of "coal mine safety regulations" and other relevant provisions and "coal mine membrane nitrogen separation device manual".
A pressure test and nitrogen injection route: nitrogen injection to 730 pumping station, auxiliary transportation roadway, mining area, 850 yards, rail Hill 1110 track roadway to 1111 coal face road
Two. Arrangement of nitrogen injection pressure test time:
Three, the relevant parameters: nitrogen concentration is not less than 97%, nitrogen injection pressure is not greater than 0.8MPa.
Four, safety technical measures
1, from the ground by nitrogen injection pump auxiliary nitrogen injection pipelines to the well pipe pressure test on nitrogen.
2, in order to prevent the emission of nitrogen, the nitrogen injection pressure test during each class at least send a rescue team in nitrogen injection along the pipe at the monitoring warning, CH4, always carry a multifunctional gas measurement instrument CO and O2 gas concentration detection.
3, during the nitrojection ventilation area of each class to arrange for a management cadres to on-site inspections, once the wind and wind vortex location CO concentration of more than 0.0024% or less than 18.5% oxygen concentration, the ambulance crew must immediately organize personnel to evacuate threatened locations, report the scheduling process.
4, nitrogen injection pipeline three way valve closed, and hanging "nitrogen injection dangerous, prohibit opening" signs, to prevent personnel mistakenly open, so as to avoid nitrogen leakage, causing personnel injury.
6, in order to ensure that nitrogen does not leak or less leakage, along the nitrogen injection line to pull the warning line, hang a warning card, marked on the warning sign "nitrogen injection dangerous, prohibited entry" logo.
7, nitrogen injection pressure test staff once there is shortness of breath and other signs of hypoxia, should immediately withdraw to the fresh air.
8, the ground beam tube monitoring system monitoring and analysis of gas composition, monitoring oxygen concentration, verify the nitrogen injection effect.
9, nitrogen injection pump personnel arrangement: nitrogen injection driver one. Department of mechanical and electrical foreman two, responsible for the nitrogen injection pipeline inspection, if there is any problems.
10, the nitrogen injection pump driver per hour check record of a nitrogen injection pump parameters of nitrogen injection pump driver to implement the scene shift system, may not leave when the equipment is running.
11, the threatened area: 730, auxiliary transportation roadway, mining, road, rail Hill 850 yard 1110 track roadway to 1111 coal face along the roadway.
12, route for avoiding disaster: 1111 coal face, 1110 belt lane and 111 mountains, 730 pedestrian ventilation tape transportation roadway - 730, 730 - Crossheadings, auxiliary transportation roadway to the ground
13, the nitrogen injection pressure test during the wind vortex are prohibited from entering the area, personnel must carry can detect O2 CH4 portable, and hung on the location above; or notify the monitoring personnel to check the concentration of oxygen, only the oxygen concentration in the above 18.5% can enter.
14, other implementation of "coal mine safety regulations" and other relevant provisions and "coal mine membrane nitrogen separation device manual".
Keywords：PSA Hydrogen Production，Nitrogen making machine in metallurgical industry
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