CN203752975U - Detection service vehicle for vehicle liquefied natural gas bottle - Google Patents
Detection service vehicle for vehicle liquefied natural gas bottle Download PDFInfo
- Publication number
- CN203752975U CN203752975U CN201420138525.7U CN201420138525U CN203752975U CN 203752975 U CN203752975 U CN 203752975U CN 201420138525 U CN201420138525 U CN 201420138525U CN 203752975 U CN203752975 U CN 203752975U
- Authority
- CN
- China
- Prior art keywords
- low
- temperature
- low temperature
- gas bottle
- valve
- 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.)
- Expired - Lifetime
Links
- 239000003949 liquefied natural gas Substances 0.000 title claims abstract description 54
- 238000001514 detection method Methods 0.000 title abstract description 11
- 239000007789 gas Substances 0.000 claims abstract description 81
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000011229 interlayer Substances 0.000 claims abstract description 23
- 239000007788 liquid Substances 0.000 claims abstract description 21
- 238000005086 pumping Methods 0.000 claims abstract description 19
- 238000012360 testing method Methods 0.000 claims abstract description 12
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 8
- 239000010410 layer Substances 0.000 claims description 7
- 238000000151 deposition Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 238000010992 reflux Methods 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 2
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 7
- 238000007689 inspection Methods 0.000 abstract description 3
- 230000001105 regulatory effect Effects 0.000 abstract description 3
- 230000007246 mechanism Effects 0.000 abstract 1
- 238000012795 verification Methods 0.000 description 8
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 229910003445 palladium oxide Inorganic materials 0.000 description 4
- JQPTYAILLJKUCY-UHFFFAOYSA-N palladium(ii) oxide Chemical compound [O-2].[Pd+2] JQPTYAILLJKUCY-UHFFFAOYSA-N 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 238000000892 gravimetry Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
A detection service vehicle for a vehicle liquefied natural gas bottle comprises an automobile and a cantilever crane, wherein the automobile is provided with a single side wing open type compartment and the cantilever crane is fixedly installed at the front end of the open side of the compartment. The detection service vehicle further comprises a liquefied gas bottle detection device. The liquefied gas bottle detection device comprises a pressure regulating type low temperature liquefied gas source, a low temperature gas bottle, a low temperature container, a nitrogen cylinder, a vacuum degree tester, a small vacuum pump set, a hot air machine set, a low temperature flowmeter, a low temperature pressure meter, a low temperature safety valve, a low temperature stop valve, a liquid level meter dry type adjustment device, a gas bottle liquid level meter wet type adjustment device, a gas bottle liquid level meter dry type adjustment device, a safety valve checking device for the low temperature gas bottle, a combined pressure regulating valve adjustment device, a gas bottle interlayer vacuum degree testing device and a gas bottle interlayer high-vacuum pumping device. The reasonably arranged devices can be carried to a door along with the vehicle, comprehensive detection and adjustment are performed on the liquefied natural gas bottle and accessories of the liquefied natural gas bottle on the site, a high-vacuum pumping service is provided for a gas bottle interlayer, time is saved for enterprises, and the detection service vehicle is particularly suitable for special device inspection mechanisms.
Description
Technical field
The utility model relates to a kind of inspection vehicle, particularly a kind of to Vehicular liquefied natural gas bottle visit carry out Site Detection and to instrument carry out adjustment service and can vacuumize gas cylinder interlayer vehicle, belong to special vehicle field.
Background technology
Natural fuels is that country encourages the clean energy resource using, and State Council's " gas utilization policy " classifies natural gas-powered car as the project of first developing as.According to measuring and calculating, use liquefied natural gas (hereinafter to be referred as: LNG) automobile is compared with using gasoline or diesel car, CO2 emissions can reduce 1/3rd, hydrocarbon emission amount can reduce 4/5ths, simultaneously, according to current fuel price measuring and calculating, LNG motor vehicle fuel cost is than low 30% left and right of petrol and diesel oil automobile.National nearest developing goal is that emphasis promotes intercity regular bus, tourism hired car and alignment lorry to use LNG clean energy resource, guides city bus, taxicar to continue to use CNG(compression natural gas) or LNG(liquefied natural gas) clean energy resource.The main welded insulated gas cylinder that uses carries out storage and Supply as Vehicular liquefied natural gas bottle to automobile LNG fuel at present.Because Vehicular liquefied natural gas bottle is in car mobile status, its safety attachment more easily breaks down or hydraulic performance decline, once and there is leakage accident in gas cylinder, in case of naked light blasts, very easily occur the Extra Serious Accident that the dead group of group hinders affecting social stability.Although existing " gas cylinder safely Supervision Code " included welded insulated gas cylinder in periodical survey scope (requiring every 3 years once), but country does not also promulgate relevant periodical survey standard, and the manufacturer's standard of automobile-used welded insulated gas cylinder also just rests on the basis of industry standards, more without national standard.The current national special equipment Zhong Jin of certification body minority certification body has the ability to carry out welded insulated gas cylinder periodical survey work, cause a large amount of welded insulated gas cylinders (more than 95%) to exceed the time limit not examine, and gas cylinder is transformed without authorization, safety attachment lacks or malfunctioning situation is very general, applying unit is only in the time that discovery gas cylinder occurs that obvious fault or performance do not meet operating needs, just to return repair in shop reason, owing to there is larger potential safety hazard and efficiency waste, safety misadventure happens occasionally.
At present, applying unit in all parts of the country, major part is regional public transport company and passenger traffic company, heavily card transport, and each industrial gasses fueling station, because also there is no at present the flowing power equipment that welded insulated gas cylinder and annex thereof is carried out to complete detection, can only require enterprise to drive to checking place detect adjustment and vacuumize, need to take the plenty of time, obviously have influence on the normal operation of enterprise.So all urgently wish that special equipment certification body can provide and make house calls.
Summary of the invention
The purpose of this utility model is not affect under the requirement of normal operation in order to meet enterprise, can ensure that again adiabatic low temperature cylinder can use safely, can visit the liquidometer configuring on low temperature cylinder, safety valve, combined pressure-regulating valve are detected and adjustment at any time for special equipment certification body provides a kind of, can also the degree of vacuum of gas cylinder interlayer be detected and be vacuumized the Vehicular liquefied natural gas bottle detection servicer of service.
Vehicular liquefied natural gas bottle of the present utility model detects servicer, comprise the automobile of monolateral wing open type carriage and be packed in the jib crane of envelope open side front end, also comprise liquefied gas bottle check implement, described liquefied gas bottle check implement comprises pressure-adjusting type low-temperature liquefaction source of the gas, low temperature cylinder, low-temperature (low temperature) vessel, nitrogen gas cylinder, vacuum degree measuring instrument, small size vacuum pump unit, hot blast unit, low temperature flow counter, low-temperature pressure table, low-temperature safety valve, cryogenic globe valve, liquidometer dry type aligning device, and hand barrow, described liquidometer dry type aligning device is contained on the sidewall of envelope front end, described pressure-adjusting type low-temperature liquefaction source of the gas and low temperature cylinder are placed in envelope inner side edge, low-temperature (low temperature) vessel is placed in the bench board bottom of envelope inner side, described nitrogen gas cylinder, small size vacuum pump unit and hot-air heater are contained in respectively on hand barrow and are placed in the envelope open side that is conducive to jib crane handling.
The wet type calibration apparatus of described pressure-adjusting type low-temperature liquefaction source of the gas, low temperature cylinder, low-temperature (low temperature) vessel, low temperature flow counter and cryogenic globe valve composition low temperature gas cylinder liquid level meter, wherein, the liquid outlet of pressure-adjusting type low-temperature liquefaction source of the gas is connected with the inlet of low temperature cylinder with cryogenic globe valve through low temperature flow counter successively, the leakage fluid dram of low temperature cylinder is connected with low-temperature (low temperature) vessel through another low shutoff valve, and low temperature gas cylinder liquid level meter to be measured is arranged on the liquidometer installation screw of low temperature cylinder; Testing device of safety valve and the combined pressure-regulating valve calibration apparatus of above-mentioned pressure-adjusting type Low Temperature Liquid source of the gas, low-temperature (low temperature) vessel, low-temperature pressure table, low-temperature safety valve and cryogenic globe valve composition low temperature cylinder, wherein, low-temperature safety valve is arranged on low-temperature (low temperature) vessel, low-temperature pressure table is arranged on low-temperature (low temperature) vessel through cryogenic globe valve, and low-temperature gas bottle safety valve to be measured is connected with low-temperature pressure table through the 2nd cryogenic globe valve; The low temperature cylinder combined pressure-regulating valve input port for the treatment of adjustment is connected with low-temperature pressure table through the 3rd cryogenic globe valve, the low temperature cylinder combined pressure-regulating valve delivery port for the treatment of adjustment is connected with another low-temperature pressure table and the 4th cryogenic globe valve with refluxing opening, and the other end of the 4th cryogenic globe valve is vacant.
Described vacuum degree measuring instrument and small size vacuum pump unit and drawing cover composition are to liquefied natural gas bottle sandwich layer vacuum degree tester, wherein, described small size vacuum pump unit is connected with an air gate of drawing cover through cryogenic globe valve, the test signal sensor of vacuum degree measuring instrument is connected with another air gate of drawing cover, and drawing cover is sleeved on the vacuum obturating plug of liquefied natural gas bottle of high vacuum to be measured, described nitrogen gas cylinder, small size vacuum pump unit, hot blast unit, vacuum degree measuring instrument, bleed house steward and shutoff valve forms the pumping high vacuum device to liquefied natural gas bottle interlayer, wherein, nitrogen gas cylinder is connected with the house steward's that bleeds port through shutoff valve, vacuum degree measuring instrument is connected with another port of the house steward that bleeds, the vacuum obturating plug for the treatment of the liquefied natural gas bottle of pumping high vacuum is connected with other port of the house steward that bleeds with shutoff valve through drawing cover, small size vacuum pump unit is connected with the house steward's that bleeds another port through extraction valve, the air outlet of hot blast unit is placed in the inner bag of the liquefied natural gas bottle for the treatment of pumping high vacuum.
For the ease of using, bench vice is also installed on described bench board, bench board bottom is provided with the drawer of depositing common tool.
Vehicular liquefied natural gas bottle of the present utility model detects servicer, owing to having wet type calibration apparatus and the liquidometer dry type aligning device of low temperature gas cylinder liquid level meter on car, can directly detect and adjustment the liquidometer of Vehicular liquefied natural gas bottle at the scene; On car, also have the checking aparatus of low-temperature gas bottle safety valve, can detect and adjustment the low-temperature safety valve of Vehicular liquefied natural gas bottle; Have the calibration apparatus of the combined pressure-regulating valve of low temperature cylinder, can detect and adjustment the low temperature combined pressure-regulating valve of Vehicular liquefied natural gas bottle; Have liquefied natural gas bottle sandwich layer vacuum degree tester, can detect the layer vacuum of Vehicular liquefied natural gas bottle; The Vehicular liquefied natural gas bottle declining for layer vacuum, can carry out the service of interlayer pumping high vacuum at the scene.Because the equipment of above reasonable disposition can carry out complete detection and adjustment to liquefied natural gas bottle and annex thereof, and can be with the car Site Service of visiting, can fully meet client's the requirement that does not affect enterprise's normal operation, can ensure again the safe handling of client's gas cylinder, for enterprise has saved the time, create benefit for oneself, filled up the breach of the market demand, be particularly suitable for special equipment certification body and use.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is the liquidometer dry type aligning device structural representation in the utility model;
Fig. 3 is liquidometer wet type calibration apparatus in the utility model and safety valve and the structural representation to box-like pressure regulating valve calibration apparatus;
Fig. 4 is the gas cylinder layer vacuum structure of the detecting device schematic diagram in the utility model;
Fig. 5 is the structural representation of the gas cylinder interlayer vacuum-pumping device in the utility model.
Detailed description of the invention
Referring to accompanying drawing, 1 in Fig. 1 is the automobile of monolateral wing open type carriage, the 2nd, and envelope, the 3rd, jib crane, the 4th, vacuum degree measuring instrument hand barrow, the 5th, liquidometer dry type aligning device, the 6th, small size vacuum pump unit and hand barrow, the 7th, pressure-adjusting type low-temperature liquefaction source of the gas, the 8th, low temperature cylinder, the 9th, hot blast unit and hand barrow, the 10th, low-temperature (low temperature) vessel, the 11st, drawer, the 12nd, bench vice, the 13rd, bench board, the 14th, nitrogen gas cylinder and hand barrow.
In Fig. 2 21 is vertical back-panel, the 22nd, and platform suitable for reading, the 23rd, liquidometer hangs mouth, the 24th, length mark, the 25th, end opening platform, the 26th, fly rod hanging mouth, the 27th, sliding tray.
In Fig. 37 is pressure-adjusting type low-temperature liquefaction sources of the gas, the 8th, low temperature cylinder, the 10th, low-temperature (low temperature) vessel, the 31st, low temperature flow counter, the 33rd, low temperature gas cylinder liquid level meter to be measured, the 32 and 34,35,37,39, the 41st, cryogenic globe valve, 36 and 42 is low-temperature pressure tables, the 38th, the safety valve of low temperature cylinder to be detected, the 40th, treat the combined pressure-regulating valve of the low temperature cylinder of adjustment.
In Fig. 44 is vacuum degree measuring instruments, the 6th, and small size vacuum pump unit, the 50th, drawing cover, the 51st, cryogenic globe valve.
In Fig. 54 is vacuum degree measuring instruments, the 6th, and small size vacuum pump unit, the 9th, hot blast unit, the 14th, nitrogen gas cylinder, the 51st, nitrogen valve, the 52nd, the house steward that bleeds, the 53rd, shutoff valve, the 54th, liquefied natural gas bottle to be vacuumized.
Be further described by reference to the accompanying drawings as follows, Vehicular liquefied natural gas bottle of the present utility model detects servicer, its structure as shown in Figure 1, comprise the automobile 1 of monolateral wing open type carriage and be packed in the jib crane 3 of envelope 2 open side front ends, also comprise liquefied gas bottle check implement, described liquefied gas bottle check implement comprises pressure-adjusting type low-temperature liquefaction source of the gas 7, low temperature cylinder 8, low-temperature (low temperature) vessel 10, nitrogen gas cylinder 14, vacuum degree measuring instrument 4, small size vacuum pump unit 6, hot blast unit 9, low temperature flow counter, low-temperature pressure table, low-temperature safety valve, cryogenic globe valve, liquidometer dry type aligning device 5, and appropriate hand barrow, described liquidometer dry type aligning device 5 is contained on the sidewall of envelope 2 front ends, and described pressure-adjusting type low-temperature liquefaction source of the gas 7 and low temperature cylinder 8 are placed in envelope inner side edge, and low-temperature (low temperature) vessel puts 10 in bench board 13 bottoms of envelope inner side, described nitrogen gas cylinder 14, small size vacuum pump unit 6 and hot-air heater 9 are contained in respectively on hand barrow and are placed in and be conducive to the envelope open side that jib crane 3 loads and unloads.
Referring to accompanying drawing 3, the wet type calibration apparatus of pressure-adjusting type low-temperature liquefaction source of the gas 7, low temperature cylinder 8, low-temperature (low temperature) vessel 10, low temperature flow counter 31 and cryogenic globe valve 32 and 34 composition low temperature gas cylinder liquid level meters in figure, wherein, the liquid outlet of pressure-adjusting type low-temperature liquefaction source of the gas 7 is connected with the inlet of low temperature cylinder 8 with cryogenic globe valve 32 through low temperature flow counter 31 successively, the leakage fluid dram of low temperature cylinder 8 is connected with low-temperature (low temperature) vessel 10 through another low shutoff valve 34, and low temperature gas cylinder liquid level meter 33 to be measured is arranged on the liquidometer installation screw of low temperature cylinder 8, when use, slowly open cryogenic globe valve 32, the flow counter 31 of employing standard is controlled the medium that is filled into low temperature cylinder 8, calculate gravimetry and volume, observe the upper of low temperature gas cylinder liquid level meter 33 meter pointers to be measured, the lattice number of lower error limit, after recording, close cryogenic globe valve 32, open cryogenic globe valve 34, medium by circle in low temperature cylinder 8 is through cryogenic globe valve 34 and be discharged to after low-temperature (low temperature) vessel 10, after unscrewing the bolt of rear end plate of low temperature gas cylinder liquid level meter 33 to be measured, take out, after the normal temperature state that reaches regulation until it, hanging is to the upper continuation of liquidometer dry type aligning device 5 (as shown in Figure 1) adjustment again.
The structure (as shown in Figure 2) of above-mentioned liquidometer dry type aligning device comprises vertical back-panel 21, platform suitable for reading 22, end opening platform 25 and length mark 24, described platform suitable for reading 22 rear ends are packed in vertical back-panel 21 tops, platform suitable for reading front portion is provided with liquidometer and hangs mouth 23, end opening platform 25 rear ends are arranged on vertical back-panel 21 bottoms through sliding tray 27, end opening platform 25 front portions are provided with fly rod hanging mouth 26, and length mark 24 is located at and treats in the vertical back-panel 21 of school liquidometer correspondence position.When use, the liquidometer of needs debugging is hung on platform suitable for reading, make liquidometer in free state, observe the spring on gauge outfit telltale fly rod, the parts such as the fly rod parameter request that whether conforms with the regulations, as found, individual part damages, change part post debugging.First carry with have gentle hands, upwards rise liquidometer fly rod and check that indicator indicates whether flexibly, whether correctly make zero, as macrographic examination nonconformity, will unscrew the adjustment screw between liquidometer spring and fly rod, the lattice number upper and lower according to the meter pointer of recording, to fly rod, adjustment puts in or pulls out, and adjusts liquidometer, makes it to make zero, pointer position is accurate, with the slight upper and lower liquidometer fly rod that pulls of hand, meter pointer should be followed rotation, without clamping stagnation again, the meter pointer position instruction of liquid level be accurately qualified, then tightens adjustment screw and can make it to reach the precision of regulation.By the squareness that is lifted on fly rod position in the hanging mouth of end opening platform and can checks easily liquidometer.
The safety valve of low temperature cylinder of the present utility model and the calibration apparatus of combined pressure-regulating valve are mainly by pressure-adjusting type Low Temperature Liquid source of the gas 7, low-temperature (low temperature) vessel 10, low-temperature pressure table 36 and 42, low-temperature safety valve 43, cryogenic globe valve 32, with 34, 35, 37, 39, 41 compositions, its structure as shown in Figure 2, wherein, low-temperature safety valve 43 is arranged on low-temperature (low temperature) vessel 10, low-temperature pressure table 36 is arranged on low-temperature (low temperature) vessel 10 through cryogenic globe valve 35, the safety valve 38 of low temperature cylinder to be measured is connected with low-temperature pressure table through the 2nd cryogenic globe valve 37, the checking aparatus of composition low-temperature gas bottle safety valve, the combined pressure-regulating valve input port for the treatment of the low temperature cylinder of adjustment is connected with low-temperature pressure table through the 3rd cryogenic globe valve 39, the delivery port for the treatment of the low temperature cylinder combined pressure-regulating valve 40 of adjustment is connected with another low-temperature pressure table 42 and the 4th cryogenic globe valve 41 with refluxing opening, and the other end of the 4th cryogenic globe valve 41 is vacant.
When the safety valve of low temperature cylinder is carried out to verification, to be tightly connected with cryogenic globe valve 37 through the mouth that is threaded by the admission port of the low-temperature gas bottle safety valve 38 of verification, open cryogenic globe valve 35 and 37, open source of the gas delivery valve and the cryogenic globe valve 32 and 34 of pressure-adjusting type low-temperature liquefaction source of the gas 7, to the interior continuous input liquid nitrogen of low-temperature (low temperature) vessel 10 cryogenic gas after gasification, make fully cooling by the low-temperature gas bottle safety valve 38 of verification after, open again pressure-adjusting type low-temperature liquefaction source of the gas 7 air source pressurizing valve (this pressure charging valve be liquefaction source of the gas on intrinsic device, in Fig. 3, separately do not draw), delivery pressure is heightened gradually, and detect by the set-pressure of the low-temperature gas bottle safety valve 38 of verification by compression indicator 36, sealing situation after observing its unlatching and while returning seat.For departing from will adjusting bolt by pressure and adjusting in time setting value of set-pressure, after qualified for set-pressure calibration, still need repeated trial more than 3 times, after guaranteeing that its stability is good and meeting in the scope that GB/T12243 allows set-pressure deviation, can close cryogenic globe valve 37, change other low-temperature gas bottle safety valve 7 verification again.
When low temperature cylinder combined pressure-regulating valve 40 is carried out to adjustment, can screw out the adjustment screw of Combined pressure-regulating device 13, make spring in free state, and record the original position of adjusting screw, and then open the cryogenic globe valve 39 on checking aparatus, make pressure rise to the pressure of setting, as middle pressure 1.37Mpa, pressurize 3 minutes, sees the compression indicator 42 on device, and it is qualified not rise to; Now the return pressure in Combined pressure-regulating device is qualified, the sealing surface of part meets the requirements, if the reading of compression indicator 42 continues to rise, illustrate that return-flow system is not all right, must change large and small diaphragm, debugging maybe must be changed the sealing surface of polytetrafluoroethylene, or cleans the surface impurity of large and small diaphragm and polytetrafluoroethylene with alcohol, test again, until qualified; After test passes, reset the operation pressure of Combined pressure-regulating device 40,, on pressure regulator checking aparatus, test until meet the requirements completely according to a conventional method meanwhile.
The safety valve of above-mentioned low temperature cylinder and the calibration apparatus of combined pressure-regulating valve, make safety valve can directly under the low temperature environment identical with actual work temperature, carry out verification with combined pressure-regulating valve, make the safety valve of the low temperature cylinder after verification and the safety performance of combined pressure-regulating valve reliable, avoid the error of verification under normal temperature completely, have simple and reasonablely, use the easy to operate and result of a measurement advantage such as accurately and reliably.
Liquefied natural gas bottle sandwich layer vacuum degree tester of the present utility model is mainly made up of vacuum degree measuring instrument 4 and small size vacuum pump unit 6 and drawing cover 50, its structure as shown in Figure 4, described small size vacuum pump unit 6 is connected with an air gate of drawing cover 50 through cryogenic globe valve 51, and the test signal sensor of vacuum degree measuring instrument 4 is connected with another air gate of drawing cover 50.Before on-the-spot test, after first relevant device being unloaded with jib crane, shift gas cylinder side onto with hand barrow, connect as stated above, when test, drawing cover 50 is sleeved on the vacuum obturating plug of liquefied natural gas bottle interlayer, open cryogenic globe valve 51, start small size vacuum pump unit 6, degree of vacuum in drawing cover 50 is extracted in advance and is set after numerical value, turn-off cryogenic globe valve 51, the pull bar that above pulls out drawing cover 50 makes the vacuum stopper on liquefied natural gas bottle leave vacuum obturating plug, and degree of vacuum is estimated instrument 4 and can measure the degree of vacuum of this liquefied natural gas bottle interlayer.After test, the pull bar pressing down on drawing cover 50 pushes back in vacuum obturating plug vacuum stopper, checks without after gas leakage, drawing cover can be taken off.For the undesirable liquefied natural gas bottle of degree of vacuum, can carry out again pumping high vacuum service.
The pumping high vacuum device of liquefied natural gas bottle interlayer of the present utility model, its structure as shown in Figure 5, mainly by nitrogen gas cylinder 14, small size vacuum pump unit 6, hot blast unit 9, vacuum degree measuring instrument 4, bleed house steward 52 and shutoff valve 53 forms, wherein, nitrogen gas cylinder 14 is connected with the house steward's 52 that bleeds port through shutoff valve 53, vacuum degree measuring instrument 4 is connected with the house steward's 52 that bleeds another port, the vacuum obturating plug for the treatment of the liquefied natural gas bottle 54 of pumping high vacuum is connected with other port of the house steward 52 that bleeds with shutoff valve 53 through drawing cover, small size vacuum pump unit 6 is connected with the house steward's 52 that bleeds another port through shutoff valve 55, the air outlet of hot blast unit 9 is placed in the inner bag of liquefied natural gas bottle 54 for the treatment of pumping high vacuum.
Liquefied natural gas bottle interlayer is carried out before pumping high vacuum operation, after first relevant device being unloaded with jib crane 3, after connecting as stated above, open again vacuum stopper and put into the palladium oxide of 1 ~ 3 gram in the interlayer of liquefied natural gas bottle 54, because the palladium oxide of this grains can fill after cryogenic media at low temperature cylinder inner bag, can excite at low temperatures, the gases such as the hydrogen of absorption in interlayer, are conducive to keep for a long time the condition of high vacuum degree of interlayer.Then respectively the drawing cover being connected with shutoff valve 53 is connected with the vacuum obturating plug of the low temperature cylinder 54 for the treatment of pumping high vacuum, the air outlet of hot blast unit 9 is placed in the inner bag of liquefied natural gas bottle 54 for the treatment of pumping high vacuum; Connect the power supply of hot blast unit 9, open shutoff valve 53 and 55, extract the vacuum stopper on vacuum bed with drawing cover, open small size vacuum pump unit 6, hot blast (optimum temperature the is 300 ~ 320C) heating of the proper temperature of sending at hot blast unit 9, vacuumize; When the reading of the degree of vacuum (detecting by vacuum degree measuring instrument 4) on house steward 52 of bleeding is during lower than 1Pa, close the shutoff valve 55 of bleeding, open the shutoff valve 51 of displacement, nitrogen in nitrogen gas cylinder 14 is filled in the interlayer of liquefied natural gas bottle 54 of pumping high vacuum, until the reading of vacuum degree measuring instrument 4 increases to after 10Pa, close the shutoff valve 51 of displacement; Observe the reading of vacuum degree measuring instrument 4, after reading in tens of minutes is unchanged, can vacuumizes for the second time and fill for the second time nitrogen; After filling for the second time nitrogen and completing; can in the situation that stopping heating, continue to vacuumize; until the reading of vacuum degree measuring instrument 4 also can remain more than half an hour unchanged rear (as variation is greater than 0.01Pa between 10.2 ~ 10.3Pa; will out-of-service inspection; fault re-starts after getting rid of), can be by vacuum stopper shutoff in vacuum obturating plug, valve-off; take out warm-air pipe and drawing cover, then change other liquefied natural gas bottle to its interlayer vacuum-pumping.In order to be lowered into the gas temperature of small size vacuum pump unit 6, can before the admission port of small size vacuum pump unit 6, set up cold chamber.Owing to taking to use the method for the air in nitrogen replacement gas cylinder interlayer, and with to cylinder liner, heating matches, can well the air in gas cylinder interlayer intergranular be filled to catch up with and take away, also in gas cylinder interlayer, put into appropriate palladium oxide, this palladium oxide can fill after liquefied natural gas-below 70C, be excited, the gases such as the hydrogen of automatic absorbing new generation in interlayer, so the condition of high vacuum degree of energy long sustaining low temperature gas cylinder interlayer.Have simple and reasonablely, safe and convenient to use, degree of vacuum is high, advantages such as not rebounding and hold time and be long.
For the ease of using, on described bench board 13, bench vice 12 is also installed, bench board 13 bottoms also can be provided with the drawer 11 of depositing common tool.
Claims (4)
1. a Vehicular liquefied natural gas bottle detects servicer, comprise the automobile of monolateral wing open type carriage and be packed in the jib crane of envelope open side front end, characterized by further comprising liquefied gas bottle check implement, described liquefied gas bottle check implement comprises pressure-adjusting type low-temperature liquefaction source of the gas, low temperature cylinder, low-temperature (low temperature) vessel, nitrogen gas cylinder, vacuum degree measuring instrument, small size vacuum pump unit, hot blast unit, low temperature flow counter, low-temperature pressure table, low-temperature safety valve, cryogenic globe valve, liquidometer dry type aligning device, and hand barrow, described liquidometer dry type aligning device is contained on the sidewall of envelope front end, described pressure-adjusting type low-temperature liquefaction source of the gas and low temperature cylinder are placed in envelope inner side edge, low-temperature (low temperature) vessel is placed in the bench board bottom of envelope inner side, described nitrogen gas cylinder, small size vacuum pump unit and hot-air heater are contained in respectively on hand barrow and are placed in the envelope open side that is conducive to jib crane handling.
2. Vehicular liquefied natural gas bottle as claimed in claim 1 detects servicer, it is characterized in that the wet type calibration apparatus of described pressure-adjusting type low-temperature liquefaction source of the gas, low temperature cylinder, low-temperature (low temperature) vessel, low temperature flow counter and cryogenic globe valve composition low temperature gas cylinder liquid level meter, wherein, the liquid outlet of pressure-adjusting type low-temperature liquefaction source of the gas is connected with the inlet of low temperature cylinder with cryogenic globe valve through low temperature flow counter successively, the leakage fluid dram of low temperature cylinder is connected with low-temperature (low temperature) vessel through another low shutoff valve, and low temperature gas cylinder liquid level meter to be measured is arranged on the liquidometer installation screw of low temperature cylinder; Testing device of safety valve and the combined pressure-regulating valve calibration apparatus of above-mentioned pressure-adjusting type Low Temperature Liquid source of the gas, low-temperature (low temperature) vessel, low-temperature pressure table, low-temperature safety valve and cryogenic globe valve composition low temperature cylinder, wherein, low-temperature safety valve is arranged on low-temperature (low temperature) vessel, low-temperature pressure table is arranged on low-temperature (low temperature) vessel through cryogenic globe valve, and low-temperature gas bottle safety valve to be measured is connected with low-temperature pressure table through the 2nd cryogenic globe valve; The low temperature cylinder combined pressure-regulating valve input port for the treatment of adjustment is connected with low-temperature pressure table through the 3rd cryogenic globe valve, the low temperature cylinder combined pressure-regulating valve delivery port for the treatment of adjustment is connected with another low-temperature pressure table and the 4th cryogenic globe valve with refluxing opening, and the other end of the 4th cryogenic globe valve is vacant.
3. Vehicular liquefied natural gas bottle as claimed in claim 2 detects servicer, it is characterized in that described vacuum degree measuring instrument and small size vacuum pump unit form liquefied natural gas bottle sandwich layer vacuum degree tester, wherein, described small size vacuum pump unit is connected with an air gate of drawing cover through cryogenic globe valve, the test signal sensor of vacuum degree measuring instrument is connected with another air gate of drawing cover, and drawing cover is sleeved on the vacuum obturating plug of liquefied natural gas bottle of high vacuum to be measured, described nitrogen gas cylinder, small size vacuum pump unit, hot blast unit, vacuum degree measuring instrument, bleed house steward and shutoff valve forms the pumping high vacuum device to liquefied natural gas bottle interlayer, wherein, nitrogen gas cylinder is connected with the house steward's that bleeds port through shutoff valve, vacuum degree measuring instrument is connected with another port of the house steward that bleeds, the vacuum obturating plug for the treatment of the liquefied natural gas bottle of pumping high vacuum is connected with other port of the house steward that bleeds with shutoff valve through drawing cover, small size vacuum pump unit is connected with the house steward's that bleeds another port through extraction valve, the air outlet of hot blast unit is placed in the inner bag of the liquefied natural gas bottle for the treatment of pumping high vacuum.
4. the Vehicular liquefied natural gas bottle as described in claim 1 or 2 or 3 detects servicer, it is characterized in that, on described bench board, bench vice is also installed, and bench board bottom is provided with the drawer of depositing common tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420138525.7U CN203752975U (en) | 2014-03-26 | 2014-03-26 | Detection service vehicle for vehicle liquefied natural gas bottle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420138525.7U CN203752975U (en) | 2014-03-26 | 2014-03-26 | Detection service vehicle for vehicle liquefied natural gas bottle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203752975U true CN203752975U (en) | 2014-08-06 |
Family
ID=51248279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420138525.7U Expired - Lifetime CN203752975U (en) | 2014-03-26 | 2014-03-26 | Detection service vehicle for vehicle liquefied natural gas bottle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203752975U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103863169A (en) * | 2014-03-26 | 2014-06-18 | 赵文杰 | Car liquefied natural gas cylinder detection service van |
| CN111231814A (en) * | 2020-02-15 | 2020-06-05 | 郑贝贝 | Chemical freezing explosion-proof transport vehicle based on nitrogen protection |
-
2014
- 2014-03-26 CN CN201420138525.7U patent/CN203752975U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103863169A (en) * | 2014-03-26 | 2014-06-18 | 赵文杰 | Car liquefied natural gas cylinder detection service van |
| CN103863169B (en) * | 2014-03-26 | 2016-04-06 | 赵文杰 | Vehicular liquefied natural gas bottle detects servicer |
| CN111231814A (en) * | 2020-02-15 | 2020-06-05 | 郑贝贝 | Chemical freezing explosion-proof transport vehicle based on nitrogen protection |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111609306B (en) | Safe and reliable's multi-functional hydrogen unloads system | |
| KR102070948B1 (en) | Movable hydrogen evaluation facility device | |
| CN112326501A (en) | System and method for testing various performances of hydrogen storage material | |
| CN202693296U (en) | Novel portable oil tank breathing valve calibrator | |
| CN212539610U (en) | Low-temperature valve test bed | |
| CN104180861A (en) | Standard device and measuring method using mass method for detecting high-pressure gas filling flow | |
| CN211203638U (en) | Hydrogenation device | |
| CN203752975U (en) | Detection service vehicle for vehicle liquefied natural gas bottle | |
| CN204829276U (en) | Can detect liquefied natural gas fuel system of vacuum immediately | |
| Galassi et al. | Onboard compressed hydrogen storage: Fast filling experiments and simulations | |
| CN100442045C (en) | Device for testing explosion-proof performance of barrier explosion-proof material and testing method thereof | |
| CN201926550U (en) | Testing device for measuring fueling evaporation loss of gasoline tank of gasoline car | |
| CN102455245B (en) | Pressure-change leakage detection method adopting hysteretic temperature compensation | |
| CN203688152U (en) | Novel gas pressure reducer verifying device | |
| CN103863169B (en) | Vehicular liquefied natural gas bottle detects servicer | |
| CN204269314U (en) | Engine cylinder reveals testing fixture | |
| CN112903068A (en) | Non-constant-current low-temperature static mass method calibrating device and method thereof | |
| CN103835805A (en) | Gaseous fuel system and method for an engine | |
| CN110657982B (en) | Breather valve performance test system | |
| CN207964269U (en) | Mobile low-temperature valve detection repairs experimental rig | |
| CN210269078U (en) | Air tightness measuring device for plastic welding part | |
| CN102501793B (en) | Moving detection vehicle | |
| CN103115649A (en) | Online measurement method and device of hydrogen gas storage or release amount of metal hydride hydrogen storage container | |
| CN116380211A (en) | Method and device for testing effective hydrogen storage capacity of vehicle-mounted hydrogen system | |
| CN201866526U (en) | Wet adjusting device of liquid level meter for low-temperature gas cylinders |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: YANTAI MINGJU CYLINDER DETECTION CO., LTD. Free format text: FORMER OWNER: ZHAO WENJIE Effective date: 20150417 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 213016 CHANGZHOU, JIANGSU PROVINCE TO: 264000 YANTAI, SHANDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20150417 Address after: 264000, 166, Po Wan Street, Fushan District, Shandong, Yantai Patentee after: Yantai bright gas bottle inspection Co., Ltd. Address before: 213016, Room 502, unit 35, Huayuan village, Bell Tower District, Jiangsu, Changzhou Patentee before: Zhao Wenjie |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140806 Effective date of abandoning: 20160406 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |