CN207473007U - High-pressure combustible gas pipeline leakage static monitoring and accurate energy ignition device - Google Patents
High-pressure combustible gas pipeline leakage static monitoring and accurate energy ignition device Download PDFInfo
- Publication number
- CN207473007U CN207473007U CN201721626415.5U CN201721626415U CN207473007U CN 207473007 U CN207473007 U CN 207473007U CN 201721626415 U CN201721626415 U CN 201721626415U CN 207473007 U CN207473007 U CN 207473007U
- Authority
- CN
- China
- Prior art keywords
- pressure
- electrostatic
- sensing device
- nozzle
- electrostatic sensing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000003068 static effect Effects 0.000 title claims abstract description 30
- 238000012544 monitoring process Methods 0.000 title claims abstract description 22
- 230000005611 electricity Effects 0.000 claims abstract description 25
- 239000002245 particle Substances 0.000 claims description 26
- 239000000523 sample Substances 0.000 claims description 15
- 238000005520 cutting process Methods 0.000 claims description 12
- 229910052802 copper Inorganic materials 0.000 claims description 7
- 239000010949 copper Substances 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229950000845 politef Drugs 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 2
- 238000009825 accumulation Methods 0.000 abstract description 9
- 238000005259 measurement Methods 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010892 electric spark Methods 0.000 abstract description 2
- 230000000740 bleeding effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 54
- 239000002737 fuel gas Substances 0.000 description 46
- 238000002485 combustion reaction Methods 0.000 description 19
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 19
- 238000002474 experimental method Methods 0.000 description 18
- 230000002269 spontaneous effect Effects 0.000 description 18
- 238000012360 testing method Methods 0.000 description 14
- 238000000034 method Methods 0.000 description 13
- 229910052739 hydrogen Inorganic materials 0.000 description 12
- 239000001257 hydrogen Substances 0.000 description 12
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 9
- 238000011160 research Methods 0.000 description 9
- 230000007246 mechanism Effects 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 6
- 239000011261 inert gas Substances 0.000 description 6
- 239000013618 particulate matter Substances 0.000 description 6
- 238000002360 preparation method Methods 0.000 description 6
- 230000006641 stabilisation Effects 0.000 description 6
- 238000011105 stabilization Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 238000010998 test method Methods 0.000 description 5
- 239000000567 combustion gas Substances 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000001737 promoting effect Effects 0.000 description 4
- 229910000881 Cu alloy Inorganic materials 0.000 description 3
- SBYXRAKIOMOBFF-UHFFFAOYSA-N copper tungsten Chemical group [Cu].[W] SBYXRAKIOMOBFF-UHFFFAOYSA-N 0.000 description 3
- 150000002431 hydrogen Chemical class 0.000 description 3
- 239000003345 natural gas Substances 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 241000321453 Paranthias colonus Species 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000003331 infrared imaging Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000013528 metallic particle Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000002679 ablation Methods 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 238000005421 electrostatic potential Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 229940056319 ferrosoferric oxide Drugs 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- 229910000464 lead oxide Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Landscapes
- Testing Of Engines (AREA)
Abstract
The utility model discloses a high pressure combustible gas pipeline static monitoring and accurate energy ignition of bleeding, a serial communication port, including gas pressure jar, high-pressure pipeline, nozzle, static measurement system, accurate energy ignition system and computer, gas pressure jar and nozzle are connected respectively at the high-pressure pipeline both ends, and static measurement system measures high-pressure pipeline internal static voltage potential waveform, and the nozzle goes out to be equipped with accurate energy ignition system, and the shooting device carries out high-speed infrared camera. Beneficial effects do: the device can be applied to a real combustible gas pipeline conveying system, is used for monitoring, preventing and controlling static electricity, and monitoring and preventing combustible gas leakage; the energy of the electric spark is accurately controlled to realize active ignition on the combustible gas, the discharge of the combustible gas is safely realized, and the influence of static accumulation and discharge on the discharge of the combustible gas can be judged.
Description
Technical field
The utility model is related to the mechanism technical field of measurement and test of high pressure fuel gas spontaneous combustion, more particularly to high pressure fuel gas
Pipeline static electricity discharge monitors and accurate energy igniting device and method.
Background technology
Fuel gas includes very much, and hydrogen (H2), carbon monoxide (CO), methane (CH4) etc., methane is natural gas
Main component.Natural gas and hydrogen belong to clean energy resource.With the increasingly depleted of fossil energy, the mankind are for clean energy resource
Demand is increasing, and due to relatively low wide, the Hen Duoxue with fire or explosion limit section of the minimum ignition energy of many fuel gas
Person expands corresponding experimental study to the safe handling of clean energy resource.Many countries and regions make the safety of clean energy resource
With all having formulated corresponding standard criterion, with prevent because misoperation either contingency cause fuel gas occur fire or
Explosion accident.
At present, the spontaneous combustion mechanism study leaked suddenly about high pressure fuel gas specifically may be used mainly or for certain
Combustion gas body, such as methane and hydrogen.Mainly using Institutes Of Technology Of He'nan as the scientific research institution of representative, they study first for the research of methane
The phenomenon that spontaneous combustion, occurs in shock tube for alkane, and main direction of studying is the diffusion ignition mechanism of methane spontaneous combustion, they have studied watt
Critical pressure, shock velocity and the flame intensity of ignition occurs in this, the safe handling of natural gas is provided it is theoretical and
Experimental basis.The research of hydrogen is mainly with China Science ＆ Technology University and U.S.'s Sandia National Labs etc. for representative.China
Scientific and technical university analyzes different shock strengths and different release rings using the diffusion ignition mechanism of hydrogen self-ignition as research emphasis
Ignition theory is spread under border and meets situation, it was demonstrated that the feasibility of diffusion ignition theory.U.S.'s Sandia National Labs is with hydrogen
The electrostatic ignition mechanism of gas spontaneous combustion is research emphasis, and Electro-static Driven Comb process caused by different impurities in Hydrogen Line is ground
Study carefully, related experiment also demonstrates the feasibility of electrostatic ignition theory.At present, the research of spontaneous combustion diffusion ignition mechanism has a large amount of reality
Data are tested, the research about spontaneous combustion electrostatic ignition mechanism is not already very perfect.This patent is mainly quiet to study with oscillograph
Electrodeposition tires out the research with potential change after static discharge, can make up fuel gas spontaneous combustion electrostatic ignition mechanism research in it is still necessary to will
The region of exploration.
Accident investigation finds that multireel inhales particle and discharges and then induce its spontaneous combustion during combustible gas leakage.For example, 2016 1
10 divide during month afternoon 3 on the 26th, the Jiangsu Chemical Co., Ltd. burst fire of Changshu, Jiangsu Province economic and technological development zone, the intensity of a fire in
50 divide or so and to be extinguished during that night 8, and accident does not cause casualties.Analysis is checked according to scene, under extremely cold weather, hydrogen
By bursting by freezing, subsequent hydrogen leaks gasket at pipeline valve.High pressure hydrogen is entrainment of the particle at gasket（Iron oxide etc.）
It is gone out at valve and produces a large amount of electrostatic, the final hydrogen self-ignition that induces causes fire, and fortune is caused to lose.This patent
It is combined by the system of Oscillograph and accurate energy ignition system of electrostatic transducer, to lead to fuel gas by testing to establish
Volume inhales the threshold evaluation standard of particle spontaneous combustion and then obtains the evaluation method of particulate loading in control fuel gas.
Invention content
In view of the above problems, the utility model is intended to provide a kind of high pressure fuel gas（Hydrogen, methane etc.）Through
During pipeline is released and the electrostatic monitoring experimental system and method for leakage hole；By arranging that the system can monitor and prevent can
Combustion gas body leaks, and safely realizes releasing for fuel gas, can also judge that accumulation of static electricity releases for fuel gas with electric discharge
Influence.
To achieve these goals, technical solution is as follows used by the utility model：
High pressure inflammable gas pipeline static electricity discharge monitors and accurate energy igniter, including gas pressure tank, high-voltage tube
Road, nozzle, pumped vacuum systems, electrostatic measuring system, accurate energy ignition system and computer, the gas pressure tank are equipped with
Valve and pressure gauge, the left and right both ends of the pressure piping are correspondingly connected with respectively with the gas pressure tank and the nozzle, institute
It states pumped vacuum systems to connect with the gas pressure tank, the electrostatic measuring system includes outer electrostatic sensing device, oscillograph number
Word signal acquiring system it is identical with structure first in electrostatic sensing device, electrostatic sensing device in second, electrostatic passes in third
Induction device, electrostatic sensing device in described first, electrostatic sensing device in electrostatic sensing device and the third in described second
It is sequentially arranged at from left to right in the pressure piping, the right end gap of the nozzle is equipped with the outer electrostatic sensing device, described
Outer electrostatic sensing device and three interior electrostatic sensing devices pass through conducting wire and the oscillograph digital signal acquiring system respectively
System connection, the oscillograph digital signal acquiring system are connect by data line with the computer, and electrostatic passes in described first
High-pressure pneumatic ball valve is equipped between induction device and the gas pressure tank, electrostatic sensing fills in the high-pressure pneumatic ball valve and first
Particle adding set is additionally provided between putting, the accurate energy igniting is equipped between the nozzle and the outer electrostatic sensing device
System, the nozzle are additionally provided with filming apparatus outside.
Be further improved, 3 interior electrostatic sensing devices including the interior electrostatic transducer of loop configuration, connecting rod,
Cutting ferrule and fixing piece, are arranged with the fixing piece on the pipeline lateral wall, the upper end of the fixing piece be equipped with its one into
The boss of type, the pressure piping madial wall upper edge its be radially provided with circle groove corresponding with the boss, the interior electrostatic
Sensor is embedded in the groove, and the connecting rod senses vertically through the boss and pressure piping and with the interior electrostatic
Device connects, and the upper end of the connecting rod is connect by conducting wire with the oscillograph digital signal acquiring system, on the cutting ferrule
Equipped with the matched through-hole of the connecting rod, the cutting ferrule is set in the connecting rod and is flexibly connected with the boss.
Fixed -piping is preferably welded with pressure piping, and cutting ferrule can be used to protect electrostatic sensing device, prevent in pressure piping
When gas pressure is larger, connecting rod is impacted away.
It is further improved, politef is filled in the groove, insulation effect is more preferable.
It is further improved, the connecting rod includes the copper tube being vertically arranged, and the copper tube lateral wall is equipped with insulation
Material.
Be further improved, the accurate energy ignition system include power cord, accurate energy controller and two probes, two
The root of probe described in root is connect respectively by power cord with the accurate energy controller, and two probes are located at the spray
Mouth right end, the electrodes of two probes are opposite and along the central shaft setting symmetrical above and below of the nozzle.
It is further improved, is additionally provided with particle addition dress in the high-pressure pneumatic ball valve and first between electrostatic sensing device
Put, the particle adding set include the fixing pipe that is set on the pressure piping and be located at vertically the fixing pipe top into
Expects pipe, the feed inlet for being equipped with and being connected with the pressure piping is run through on the feed pipe vertically, and feed inlet upper end activity is set
There is upper cover.
The side measured using above-mentioned high pressure inflammable gas pipeline static electricity discharge monitoring and accurate energy igniter
Method is：
1）According to test purpose, by each device assembly and connection, then closed conduct spout, to assembled system into promoting the circulation of qi
Close property test；
2）Pressure piping spout is opened, closes high-pressure pneumatic ball valve, pumped vacuum systems is opened and drains in gas pressure tank
After air, gas pressure tank valve is opened, fuel gas is injected into gas pressure tank, treats that pressurized tank reaches specified pressure
Stop injection fuel gas；
3）Electrostatic measuring system and filming apparatus are opened, after electrostatic measuring system stabilization, opens high-pressure pneumatic ball valve, it is quiet
Electrical measuring systems gathered data and by collected data transmission to computer, while filming apparatus is shot, until experiment
It finishes；
4）After experiment, electrostatic measuring system and filming apparatus are closed, inert gas is connected into gas pressure tank valve,
It opens valve to be purged, after package unit fuel gas is blown off, preparation is tested next time.
This test method is not add particle, does not also enable what is carried out under conditions of accurate discharge system, according to flammable
Gas is released the difference of pressure, and fuel gas speed ratio of releasing is very fast under high pressure, and release suddenly is ignited it is possible that spontaneous combustion can occur
Source may be friction spark, electrostatic spark, frictional heat etc., and fuel gas occurs the flame that spontaneous combustion generates and sprayed from spout；When
When spontaneous combustion occurs, the accumulation of static electricity situation inside pipeline and the variation of pipeline external electrostatic are detected.
It is measured using above-mentioned high pressure inflammable gas pipeline static electricity discharge monitoring and precisely energy igniter another
A kind of method is：
1）According to test purpose, by each device assembly and connection, then closed conduct spout, to assembled system into promoting the circulation of qi
Close property test；
2）Opening conduits spout, closes high-pressure pneumatic ball valve, and unlatching pumped vacuum systems drains the air in gas pressure tank
Afterwards, gas pressure tank valve is opened, fuel gas is injected into gas pressure tank, treats that pressurized tank reaches specified pressure and can stop
Inject fuel gas；
3）Electrostatic measuring system and filming apparatus are opened, after electrostatic measuring system stabilization, high-pressure pneumatic ball valve is opened and finishes
Electrostatic measuring system gathered data and by collected data transmission to computer, while filming apparatus is shot, and treats third
After a electrostatic transducer data output data, start accurate energy ignition system, the energy for selecting different gradients is lighted a fire, directly
To having tested, until experiment finishes；
4）After experiment, electrostatic measuring system and filming apparatus are closed, inert gas is connected into pressure tank valve, is opened
Valve is purged, and after package unit fuel gas is blown off, preparation is tested next time.
This test method carries out under conditions of not adding particle but enabling accurate discharge system, according to fuel gas
The difference for pressure of releasing, fuel gas is released under high pressure, and speed ratio is very fast, and release suddenly is also possible to it is possible that spontaneous combustion can occur
Not spontaneous combustion, when not having to occur spontaneous combustion, by gas fuel burning during accurate energy ignition system, the flame of generation is sprayed from spout
Go out；The accumulation of static electricity situation inside pipeline and the variation of pipeline external electrostatic are detected, verification fuel gas is in the feelings for being not added with particle
Under condition, need the energy lighted a fire is how many.
Measured using above-mentioned high pressure inflammable gas pipeline static electricity discharge monitoring and precisely energy igniter and
A kind of method is：：
1）According to test purpose, particulate matter of the addition by measurement into particle adding set；
2）By each device assembly and connection, then closed conduct spout, air tightness test is carried out to assembled system；
3）Opening conduits spout, closes high-pressure pneumatic ball valve, and unlatching pumped vacuum systems drains the air in gas pressure tank
Afterwards, gas pressure tank valve is opened, fuel gas is injected into gas pressure tank, treats that pressurized tank reaches specified pressure and can stop
Inject fuel gas；
4）Electrostatic measuring system and filming apparatus are opened, after electrostatic measuring system stabilization, opens high-pressure pneumatic ball valve, it can
Combustion gas body volume suction particulate matter sequentially passes through three interior electrostatic sensing devices along pressure piping and is gone out from outer electrostatic transducer, and electrostatic is surveyed
Measure system acquisition data and by collected data transmission to computer, while filming apparatus is shot, and treats third electrostatic
After sensing data output data, start accurate energy ignition system, the energy for selecting different gradients is lighted a fire, until experiment
It is complete, until experiment finishes；
5）After experiment, electrostatic measuring system and filming apparatus are closed, opening connects inert gas purge valve and blown
It sweeps, after package unit fuel gas is blown off, preparation is tested next time.
This test method carries out under conditions of addition particle and using accurate discharge system, during the experiment,
It can be detected by electrostatic monitoring system in pipeline and be charged at different cross section, so as to analyze the accumulation of electrostatic and release process；
It is mingled with metallic particles after nozzle is discharged into exterior space in air-flow, can be observed by high-speed camera and infrared imaging
Air-flow and the effect of accurate energy ignition system and the process of electrostatic spark discharge igniting.
It is described in the utility model to have the beneficial effect that：Gas pipeline transport system in reality is can be applied to, for quiet
The monitoring and prevention and control of electricity, monitoring and prevention combustible gas leakage；Accurate control electric spark energy realizes active point to fuel gas
Fire safely realizes releasing for fuel gas, can also judge the influence that accumulation of static electricity releases for fuel gas with electric discharge.
Description of the drawings
Fig. 1 is the utility model structure of the main view.
Fig. 2 is the interior electrostatic sensing device main cross section structure diagram.
Fig. 3 is probe and nozzle attachment structure schematic diagram.
Wherein：1- gas pressure tanks, 11- pressure gauges, 2- pressure pipings, 3- nozzles, 4- pumped vacuum systems, 5- electrostatic measurements
System, the outer electrostatic sensing devices of 51-, 52- oscillograph digital signal acquiring systems, electrostatic sensing device in 53- first, 54- the
Electrostatic sensing device in two, electrostatic sensing device in 55- thirds, electrostatic transducer in 531-, 532- connecting rods, 533- cutting ferrules,
534- fixing pieces, 535- boss, 536- copper tubes, 537- insulating materials, 538- politefs, the accurate energy igniting systems of 6-
System, 61- power cords, the accurate energy controllers of 62-, 63- probes, 7- computers, 8- high-pressure pneumatic ball valves, 9- filming apparatus, 10-
Particle adding set.
Specific embodiment
In order to which those of ordinary skill in the art is made to be better understood on the technical solution of the utility model, with reference to attached
Figure and embodiment are further described the technical solution of the utility model.
With reference to shown in attached drawing, the monitoring of high pressure inflammable gas pipeline static electricity discharge and precisely energy igniter, including gas
Pressurized tank 1, pressure piping 2, nozzle 3, pumped vacuum systems 4, electrostatic measuring system 5, accurate energy ignition system 6 and computer 7,
The gas pressure tank 1 is equipped with pressure gauge 11, and the overall length of the pressure piping 2 is 3000mm, internal diameter 20mm, the height
The left and right both ends of pressure pipeline 2 are correspondingly connected with respectively with the gas pressure tank 1 and the nozzle 3, the pumped vacuum systems 4 with
The gas pressure tank 1 connects, and the electrostatic measuring system 5 includes outer electrostatic sensing device 51, oscillograph digital signal acquiring
System 52 it is identical with structure first in electrostatic sensing device 54 in electrostatic sensing device 53, second, electrostatic sensing dress in third
Put 55, electrostatic sensing device 55 is from left to right in electrostatic sensing device 54 and third in electrostatic sensing device 53, second in first
Interval is located in the pressure piping 2 successively, and the right end gap of the nozzle 3 is equipped with the outer electrostatic sensing device 51, described
Outer quiet telefax apparatus 51 is the outer electrostatic transducer of annular, away from the spout 3-5mm；The outer electrostatic sensing device 51 and three
The interior electrostatic sensing device is connect respectively by conducting wire with the oscillograph digital signal acquiring system 52, the oscillograph number
Word signal acquiring system 52 is connect by data line with the computer 7, electrostatic sensing device 53 and the gas in described first
High-pressure pneumatic ball valve 8 is equipped between body pressurized tank 1, in the high-pressure pneumatic ball valve 8 and first between electrostatic sensing device 53 also
Equipped with particle adding set 10, the particle adding set 10 includes fixing pipe and feed pipe, and the fixed length of tube is 40mm,
It is set on the pressure piping, is equipped with the feed pipe above the fixing pipe vertically, and the feed pipe is equipped with vertical
Through the fixing pipe and the feed inlet of the pressure piping, the feed inlet upper end is movably equipped with upper cover；The nozzle 3 and institute
It states and the accurate energy ignition system 6 is equipped between outer electrostatic sensing device 51, the right end of the nozzle 3 is additionally provided with filming apparatus
9, the filming apparatus is high-speed camera.
Electrostatic sensing device 55 includes in electrostatic sensing device 54 and third in electrostatic sensing device 53, second in first
Interior electrostatic transducer 531, connecting rod 532, cutting ferrule 533 and the fixing piece 534 of loop configuration, the lateral wall of the pressure piping 2
On be arranged with the fixing piece 534, the fixing piece 534 and pressure piping can be fixedly connected by the modes such as welding；It is described solid
Determine 534 upper end of part be equipped with its integrally formed boss 535, the madial wall upper edge of the pressure piping 2 its be radially provided with a circle
With the 534 corresponding groove of fixing piece, the interior electrostatic transducer 531 is embedded in the groove, is filled in the groove
There is politef 538；The lateral wall of the boss 535 is equipped with a circle external screw thread, and the cutting ferrule 533 is set in the boss
Above and with the boss it is threadedly coupled,；The connecting rod 532 is copper tube, and insulation is coated on 536 periphery wall of copper tube
Material 537, sequentially pass through vertically the cutting ferrule 533, boss 535 and pressure piping 2 and with the interior electrostatic sensing device 531
Flexible connection, the upper end of the connecting rod 532 is connect by conducting wire with the oscillograph digital signal acquiring system 52.
The accurate energy ignition system 6 includes power cord 61, accurate energy controller 62 and two probes 63, two institutes
The root for stating probe 63 is connect respectively by power cord 61 with the accurate energy controller 62, and two probes are tightly attached to institute
State nozzle right end, the electrode of two probes is opposite and along the central shaft setting symmetrical above and below of the nozzle, the electric discharge of two probes
Electrode spacing is 3mm, and the energy that accurate energy controller discharges every time is 0.01 millijoule.
Gas pressure tank, pipeline and spout, valve（Ball valve containing high-pressure pneumatic etc.）, particle adding set and electrostatic sensing
Device attachment device is using 316L stainless steels, and package unit highest pressure-bearing is up to 20MPa；The element material of electrostatic transducer is tungsten
Copper alloy；The overall length of the pressure piping is 3000mm, and internal diameter 20mm, the pressure piping is with nozzle preferentially using screw thread
Connection, the tapered structure in nozzle throat area, the one end open being connect with pressure piping is big, and another end opening is small, spout end
A diameter of 3mm or two kinds of 7mm；；Electrostatic transducer and the high-pressure pneumatic ball valve and particle adding set in first in high-voltage tube
Distance be 100mm, electrostatic transducer is away from electrostatic transducer 1400mm in third in second in high-voltage tube, electrostatic in third
Jet opening distance 100mm of the sensor away from nozzle.
Following three kinds of different conditions can be used to be monitored.
Using the monitoring of above-mentioned high pressure inflammable gas pipeline static electricity discharge and accurate energy igniter, monitoring fuel gas is certainly
Accumulation of static electricity situation and the variation of pipeline external electrostatic, the method for measurement during combustion inside pipeline are：
1）According to test purpose, by each device assembly and connection, then closed conduct spout, to assembled system into promoting the circulation of qi
Close property test；
2）Pressure piping spout is opened, closes high-pressure pneumatic ball valve, pumped vacuum systems is opened and drains in gas pressure tank
After air, gas pressure tank valve is opened, fuel gas is injected into gas pressure tank, treats that pressurized tank reaches specified pressure
Stop injection fuel gas；
3）Electrostatic measuring system and filming apparatus are opened, after electrostatic measuring system stabilization, opens high-pressure pneumatic ball valve, it is quiet
Electrical measuring systems gathered data and by collected data transmission to computer, while filming apparatus is shot, until experiment
It finishes；
4）After experiment, electrostatic measuring system and filming apparatus are closed, inert gas is connected into gas pressure tank valve,
It opens valve to be purged, after package unit fuel gas is blown off, preparation is tested next time.
Using the monitoring of above-mentioned high pressure inflammable gas pipeline static electricity discharge and accurate energy igniter, what is measured is another
Kind of method is：
1）According to test purpose, by each device assembly and connection, then closed conduct spout, to assembled system into promoting the circulation of qi
Close property test；
2）Opening conduits spout, closes high-pressure pneumatic ball valve, and unlatching pumped vacuum systems drains the air in gas pressure tank
Afterwards, gas pressure tank valve is opened, fuel gas is injected into gas pressure tank, treats that pressurized tank reaches specified pressure and can stop
Inject fuel gas；
3）Electrostatic measuring system and filming apparatus are opened, after electrostatic measuring system stabilization, high-pressure pneumatic ball valve is opened and finishes
Electrostatic measuring system gathered data and by collected data transmission to computer, while filming apparatus is shot, and treats third
After a electrostatic transducer data output data, start accurate energy ignition system, the energy for selecting different gradients is lighted a fire, directly
To having tested, until experiment finishes；
4）After experiment, electrostatic measuring system and filming apparatus are closed, inert gas is connected into pressure tank valve, is opened
Valve is purged, and after package unit fuel gas is blown off, preparation is tested next time.
This test method can verify that fuel gas in the case where being not added with particle, need the energy lighted a fire is how many.
It is measured using the monitoring of above-mentioned high pressure inflammable gas pipeline static electricity discharge and precisely energy igniter another
Kind of method is：
1）According to test purpose, particulate matter of the addition by measurement into particle adding set；
2）By each device assembly and connection, then closed conduct spout, air tightness test is carried out to assembled system；
3）Opening conduits spout, closes high-pressure pneumatic ball valve, and unlatching pumped vacuum systems drains the air in gas pressure tank
Afterwards, gas pressure tank valve is opened, fuel gas is injected into gas pressure tank, treats that pressurized tank reaches specified pressure and can stop
Inject fuel gas；
4）Electrostatic measuring system and filming apparatus are opened, after electrostatic measuring system stabilization, opens high-pressure pneumatic ball valve, it can
Combustion gas body volume suction particulate matter sequentially passes through three interior electrostatic sensing devices along pressure piping and is gone out from outer electrostatic transducer, and electrostatic is surveyed
Measure system acquisition data and by collected data transmission to computer, while filming apparatus is shot, and treats third electrostatic
After sensing data output data, start accurate energy ignition system, the energy for selecting different gradients is lighted a fire, until experiment
It is complete, until experiment finishes；
5）After experiment, electrostatic measuring system and filming apparatus are closed, opening connects inert gas purge valve and blown
It sweeps, after package unit fuel gas is blown off, preparation is tested next time.
It can stop injecting fuel gas when gas pressure tank reaches specified pressure, it, can after the unlatching of high-pressure pneumatic ball valve
Gas jet is just quickly flowed from pressure export along pressure piping, when flowing through the particle adding set for placing particulate matter, meeting
The particulate matter placed in device is rolled up in sucking high-speed flow, is advanced along pressure piping and finally together with air-flow by nozzle
It is discharged into external environment；The particle added in this test method can be di-iron trioxide（α phases, y phases）, ferroso-ferric oxide,
One or more in lead oxide, graphite during the experiment, can be detected different in pipeline by electrostatic monitoring system
It is charged at section, so as to analyze the accumulation of electrostatic and release process；It is mingled with metallic particles in air-flow to be discharged by nozzle
After exterior space, the effect of air-flow and accurate energy ignition system and quiet can be observed by high-speed camera and infrared imaging
The process of spark discharge igniting.
The utility model has the advantage of：
1. fuel gas and fuel gas volume are inhaled and can intuitively be observed by oscillograph in Microne experiment：In pipeline with
Accumulation of static electricity, electrostatic transducer voltage potential waveform variation in pipe；Combustible gas volume inhale particle from spout spray when and ejecting opening surface
It tears, the mixed gas by spout can be intuitively observed by third electrostatic transducer in pipe and pipe outer sensor
Potential change；Spout electrostatic is changed by electrostatic transducer voltage potential waveform outside the pipe after the release of accurate energy；
It 2. can be with comparative observation by accurate energy ignition system：A variety of feelings when fuel gas inhales particle with fuel gas volume
Under condition, the possibility size of fuel gas spontaneous combustion generation.Such as, if pure combustible gas ignition energy is more than igniting when volume inhales particle
Energy then illustrates that combustible gas volume inhales particle and is more conducive to its generation spontaneous combustion；
3. electrostatic transducer uses material as tungsten-copper alloy, tungsten-copper alloy even tissue, high temperature resistant, intensity height, resistance to electric arc
It ablation and conducts electricity very well, electrostatic potential can more accurately be monitored using new material；
4. electrostatic transducer can be protected quiet with pipeline using the connection protected mode of plug-in type, welding and cutting ferrule in pipe
Electric transducer and electrostatic signal can more accurately monitor electrostatic signal variation.
The advantages of basic principle, main feature and the utility model of the utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the present utility model is not limited to the above embodiments, described in above embodiments and description
Only illustrate the principle of the utility model, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
Various changes and modifications are had, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (6)
1. high pressure inflammable gas pipeline static electricity discharge monitors and accurate energy igniter, which is characterized in that including gas pressure
Tank, pressure piping, nozzle, pumped vacuum systems, electrostatic measuring system, accurate energy ignition system and computer, the gas pressure
Power tank is equipped with valve and pressure gauge, the left and right both ends of the pressure piping respectively with the gas pressure tank and the nozzle
It is correspondingly connected with, the pumped vacuum systems is connect with the gas pressure tank, and the electrostatic measuring system includes outer electrostatic sensing dress
Put, electrostatic sensing device in first that oscillograph digital signal acquiring system is identical with structure, electrostatic sensing device, in second
Electrostatic sensing device in three, it is electrostatic sensing device in described first, quiet in electrostatic sensing device and the third in described second
Electrical sensor apparatus is sequentially arranged at from left to right in the pressure piping, and the right end gap of the nozzle is equipped with the outer electrostatic sensing
Device, the outer electrostatic sensing device and three interior electrostatic sensing devices are believed respectively by conducting wire and the oscillograph number
The connection of number acquisition system, the oscillograph digital signal acquiring system are connect by data line with the computer, and described first
High-pressure pneumatic ball valve is equipped between interior electrostatic sensing device and the gas pressure tank, it is quiet in the high-pressure pneumatic ball valve and first
Particle adding set is additionally provided between electrical sensor apparatus, is equipped between the nozzle and the outer electrostatic sensing device described accurate
Energy ignition system, the nozzle are additionally provided with filming apparatus outside.
2. high pressure inflammable gas pipeline static electricity discharge monitoring according to claim 1 and precisely energy igniter, special
Sign is that 3 interior electrostatic sensing devices include interior electrostatic transducer, connecting rod, cutting ferrule and the fixing piece of loop configuration,
Be arranged with the fixing piece on the pipeline lateral wall, the upper end of the fixing piece be equipped with its integrally formed boss, it is described
It is radially provided with circle groove corresponding with the boss to pressure piping madial wall upper edge, and the interior electrostatic transducer is embedded in institute
It states in groove, the connecting rod is connect through the boss and pressure piping and with the interior electrostatic sensing device vertically, described
The upper end of connecting rod is connect by conducting wire with the oscillograph digital signal acquiring system, and the cutting ferrule is equipped with and the connection
The matched through-hole of bar, the cutting ferrule are set in the connecting rod and are flexibly connected with the boss.
3. high pressure inflammable gas pipeline static electricity discharge monitoring according to claim 2 and precisely energy igniter, special
Sign is, politef is filled in the groove.
4. high pressure inflammable gas pipeline static electricity discharge monitoring according to claim 2 and precisely energy igniter, special
Sign is that the connecting rod includes the copper tube being vertically arranged, and the copper tube lateral wall is equipped with insulating materials.
5. high pressure inflammable gas pipeline static electricity discharge monitoring according to claim 1 and precisely energy igniter, special
Sign is, the accurate energy ignition system includes power cord, accurate energy controller and two probes, two probes
Root is connect respectively by power cord with the accurate energy controller, and two probes are located at the nozzle right end, two
The electrode of probe is opposite and along the central shaft setting symmetrical above and below of the nozzle.
6. high pressure inflammable gas pipeline static electricity discharge monitoring according to claim 1 and precisely energy igniter, special
Sign is that the particle adding set includes the fixing pipe being set on the pressure piping and is located at vertically in the fixing pipe
Square feed pipe runs through the feed inlet for being equipped with and connect with the pressure piping, the feed inlet upper end work on the feed pipe vertically
It is dynamic to be equipped with upper cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721626415.5U CN207473007U (en) | 2017-11-29 | 2017-11-29 | High-pressure combustible gas pipeline leakage static monitoring and accurate energy ignition device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721626415.5U CN207473007U (en) | 2017-11-29 | 2017-11-29 | High-pressure combustible gas pipeline leakage static monitoring and accurate energy ignition device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207473007U true CN207473007U (en) | 2018-06-08 |
Family
ID=62259209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721626415.5U Active CN207473007U (en) | 2017-11-29 | 2017-11-29 | High-pressure combustible gas pipeline leakage static monitoring and accurate energy ignition device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207473007U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109682924A (en) * | 2018-12-27 | 2019-04-26 | 南京工业大学 | Test device and test method for forming jet fire by leakage ignition of high-pressure gas pipeline |
| CN112578073A (en) * | 2019-09-29 | 2021-03-30 | 中国石油化工股份有限公司 | Experimental device for survey gaseous spontaneous combustion induction time |
| CN113933746A (en) * | 2021-09-28 | 2022-01-14 | 南京工业大学 | Fluid pipeline conveying process static measurement device and measurement method |
| CN114910600A (en) * | 2021-02-08 | 2022-08-16 | 中国石油化工股份有限公司 | Combustion behavior visualization test device and method |
-
2017
- 2017-11-29 CN CN201721626415.5U patent/CN207473007U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109682924A (en) * | 2018-12-27 | 2019-04-26 | 南京工业大学 | Test device and test method for forming jet fire by leakage ignition of high-pressure gas pipeline |
| CN109682924B (en) * | 2018-12-27 | 2024-04-09 | 南京工业大学 | Device and method for testing leakage ignition of high-pressure gas pipeline to form injection fire |
| CN112578073A (en) * | 2019-09-29 | 2021-03-30 | 中国石油化工股份有限公司 | Experimental device for survey gaseous spontaneous combustion induction time |
| CN114910600A (en) * | 2021-02-08 | 2022-08-16 | 中国石油化工股份有限公司 | Combustion behavior visualization test device and method |
| CN113933746A (en) * | 2021-09-28 | 2022-01-14 | 南京工业大学 | Fluid pipeline conveying process static measurement device and measurement method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207473007U (en) | High-pressure combustible gas pipeline leakage static monitoring and accurate energy ignition device | |
| CN103712755B (en) | A kind of simulate the assay device that natural gas leaks in soil | |
| CN206906014U (en) | Combustible gas pipeline flame arrester performance test system | |
| CN104749218A (en) | Device and method for testing explosion properties of flammable gases at ultralow temperature | |
| Cui et al. | Influential factors of gas explosion venting in linked vessels | |
| CN114813405A (en) | Petrochemical device rupture disk failure form and bursting performance detection test device and method under dynamic load | |
| CN205759209U (en) | A kind of active explosion suppression powder body release device | |
| CN209182323U (en) | Flammable gas explosion simulation and the datonation-inhibition experiment porch of water mist under a kind of high/low temperature | |
| CN111255723B (en) | System and method for testing explosion-proof performance of explosion-proof fan | |
| CN110299217A (en) | It is a kind of for studying the test section of annular fuel involucrum Explosive Failure | |
| CN205748959U (en) | A kind of assay device for pipeline explosion arrestment spark arrester performance test | |
| CN203519267U (en) | Gas leakage detection device | |
| CN108389636B (en) | Combustible gas explosion experiment system and method in a kind of small size pipeline | |
| CN109001255A (en) | A kind of compound negative pressure cavity inhibits fork tunnel gas explosion experimental provision and method | |
| CN106404834A (en) | Test method for explosion suppression and fire resistance performance of structured packing | |
| CN207716093U (en) | Vehicle-mounted LNG gas cylinders performance monitoring device | |
| CN209387568U (en) | It is a kind of with cigarette is close and the flame retardant cable horizontal firing test device of temperature-monitoring function | |
| CN110006949A (en) | Gas burst experimental provision and method based on product analysis | |
| CN208383388U (en) | A kind of imitative experimental appliance of double fuel host gas leakage peculiar to vessel | |
| CN204556264U (en) | A kind of fan-shaped outlet measurement mechanism for firing chamber comprehensive performance test | |
| CN116448472B (en) | Closeable gas-dust composite explosion annular flameless leakage/explosion suppression and performance testing device thereof | |
| CN202044683U (en) | Flame arrester for petroleum gas pipeline | |
| CN115624700B (en) | Explosion disaster suppression device, test system and method | |
| CN207318397U (en) | High-pressure hydrogen pipeline shock wave and static coupling measurement system | |
| CN203337587U (en) | Experimental device for testing colloid fire-extinguishing performance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210802 Address after: 212001 room 205, new material industrial park, No. 180, Jingang Avenue, New District, Nanjing, Jiangsu Province Patentee after: Zhenjiang Ruihua Safety Technology Co.,Ltd. Address before: 210009 200 Zhongshan North Road, Gulou District, Nanjing City, Jiangsu Province, China. Nanjing Tech University Hongqiao Campus Patentee before: Nanjing Tech University |
|
| TR01 | Transfer of patent right |