CN105300614B - A kind of automobile-used LNG gas cylinders multifunction valve test system and test method - Google Patents
A kind of automobile-used LNG gas cylinders multifunction valve test system and test method Download PDFInfo
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- CN105300614B CN105300614B CN201510836894.2A CN201510836894A CN105300614B CN 105300614 B CN105300614 B CN 105300614B CN 201510836894 A CN201510836894 A CN 201510836894A CN 105300614 B CN105300614 B CN 105300614B
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Abstract
The invention discloses a kind of automobile-used LNG gas cylinders multifunction valves to test system.The test system includes test fixture, the multifunction valve on test fixture；Further include that system is tested to the liquid that the corresponding valve port of multifunction valve carries out the gaseous test system of gaseous test and carries out liquid test；The gaseous test system includes air inlet test pipeline and outlet test pipeline；Pressure reducing valve, safety valve, multiple shut-off valves and multiple pressure gauges are housed, air inlet test pipeline is also connected to by the small gas cylinder lateral equipped with shut-off valve with a small gas cylinder on the air inlet test pipeline；Pressure gauge and shut-off valve are housed on the outlet test pipeline；The liquid test system includes that feed liquor test pipeline tests pipeline with liquid is gone out；Shut-off valve and pressure gauge be housed on feed liquor test pipeline, it is described go out liquid test pipeline on pressure gauge and shut-off valve are housed.The present invention can facilitate the various tests for completing different valves in multifunction valve.
Description
Technical field
The present invention relates to a kind of automobile-used LNG gas cylinders multifunction valve test system and test method, it is particularly suitable for having and turns
A kind of detection of automobile liquefied natural gas bottle multifunction valve of changing-over head, belongs to liquefied natural gas valve detection application technology
Field.
Background technology
Liquefied natural gas bottle is a kind of cryogenic liquid insulated gas cylinder, and the filling liquid of liquefied natural gas bottle, feed flow, safety are let out
It puts and must be realized by various control valves with pressure regulation.In background technology, liquefied natural gas bottle production both domestic and external at present
Producer its control valve install all be use separate valve, i.e., control valve be made according to different performance requirement it is independent
Valve, such as interior check-valves, excess flow valve, economic air throttle, filling liquid check-valves and return-air/go out liquid shut-off valve, valve and valve it
Between connection be that engagement thread is added using stainless-steel pipe, when valve is tested, each valve is independent, as long as according to each valve
Performance requirement do corresponding experiment.
And it is multi-functional for a kind of automobile liquefied natural gas bottle as disclosed in Chinese patent CN2015105343197
Valve, it is by interior check-valves, excess flow valve, economic air throttle, filling liquid check-valves, return-air shut-off valve and to go out liquid shut-off valve and pass through screw thread
Connection type is combined to a component of the function that LNG gas cylinder pipe-line systems are realized on integrated valve body.Company between each valve
It is fixed and indivisible to connect, and is to complete its valve function by integrated valve body inner tube road communicates between valve,
It when testing one of valve, is necessarily influenced by the performance of other valves and makes experiment that can not normally complete, this is just
It needs to design a special device to meet the requirement of pile-up valve experiment.
Therefore, insufficient present on to overcome, it is necessary to a kind of survey of automobile liquefied natural gas bottle multifunction valve
Method for testing and test device are developed.
Invention content
The present invention is intended to provide a kind of automobile-used LNG gas cylinders multifunction valve test system and test method, the test system and
Test method combines excess flow valve in the prior art, filling liquid check-valves and return-air/go out liquid shut-off valve, and multifunction valve is mounted on and is surveyed
Trial work is loaded onto, and the interface that gaseous state or liquid are tested to system according to the requirement of different test events connects on corresponding test fixture
Mouth connection, and it is equipped with different components, complete the various tests of different valves.
To achieve the goals above, the technical solution adopted in the present invention is：
A kind of automobile-used LNG gas cylinders multifunction valve test system, includes with gas phase connector, liquid inlet joint and outlet connector
Test fixture, the multifunction valve on test fixture；It is structurally characterized in that, further includes being carried out to the corresponding valve port of multifunction valve
The gaseous test system of gaseous test and the liquid for carrying out liquid test test system；The gaseous test system include one end with
The connection of gas cylinder gas outlet, the other end corresponding to multifunction valve intake valve port connection air inlet test pipeline, one end with it is multi-functional
The outlet of the connection of corresponding outlet valve port, the other end emptying of valve tests pipeline；Equipped with pressure reducing valve, peace on the air inlet test pipeline
Full valve, multiple shut-off valves and multiple pressure gauges, the air inlet test pipeline also by small gas cylinder lateral equipped with shut-off valve with
One small gas cylinder is connected to；Pressure gauge and shut-off valve are housed on the outlet test pipeline；Liquid test system include one end with
The feed liquor of liquid outlet connection, the other end corresponding to multifunction valve the feed liquor valve port connection of constant voltage water pump tests pipeline, one end with
The liquid that goes out of the connection of corresponding liquid valve mouth, the other end emptying of multifunction valve tests pipeline；It is equipped with and cuts on the feed liquor test pipeline
Only valve and pressure gauge, it is described go out liquid test pipeline on be equipped with pressure gauge and shut-off valve.
According to an embodiment of the invention, further optimization can also be made to the present invention, below the skill to be formed after optimization
Art scheme：
Preferably, the test fixture includes platen, on platen for install multifunction valve mounting plate and
Gas phase connector, liquid inlet joint and outlet connector on platen.
Water tank of voltage regulation and flowmeter are housed on the feed liquor test pipeline.
Pressure gauge and shut-off valve are housed on the water tank of voltage regulation.
The multifunction valve includes valve body, and liquid level gauge adapter assembly, return-air shut-off valve assemblies, the filling liquid being arranged on valve body stop
Return valve union, go out liquid shut-off valve, overcurrent valve union, motion valve assemblage, main safety valve, secondary safety valve, pressure gauge, air outlet adapter,
Solar term valve insert, air throttle plug, interior check-valves, bushing, sealing element.Further, it is provided with inside filling liquid on the valve body
Entrance, with gas entrance, with liquid entrance, excess flow valve interface, entrance, return-air interface outside filling liquid；It is filled on the filling liquid interior inlet
There is filling liquid check valve assembly, it is described with crossover sub is equipped on gas entrance, overcurrent valve union, institute are housed on the excess flow valve interface
It states and filling liquid non-return valve union is housed outside filling liquid on entrance, end valve union equipped with return-air on the return-air interface.
Based on the same inventive concept, tested using above-mentioned automobile-used LNG gas cylinders multifunction valve the present invention also provides a kind of
The method that system tests multifunction valve, the multifunction valve include valve body, be arranged valve body on liquid level gauge adapter assembly,
Return-air shut-off valve assemblies, go out liquid shut-off valve, overcurrent valve union, motion valve assemblage, main safety valve, secondary peace at filling liquid non-return valve union
Full valve, pressure gauge, air outlet adapter, solar term valve insert, air throttle plug, interior check-valves, bushing, sealing element；On the valve body
Be provided with filling liquid interior inlet, with gas entrance, with liquid entrance, excess flow valve interface, entrance, return-air interface outside filling liquid；The filling liquid
Filling liquid check valve assembly is housed on interior inlet, it is described with crossover sub is equipped on gas entrance, it is equipped on the excess flow valve interface
Overcurrent valve union is equipped with filling liquid non-return valve union on entrance outside the filling liquid, return-air shut-off valve is housed on the return-air interface
Connector；Include return-air shut-off valve room temperature high-low pressure air-tight test, go out liquid shut-off valve its main feature is that carrying out test to multifunction valve
Room temperature high and low pressure air-tight test, excess flow valve performance test, filling liquid check-valves performance test：Air throttle room temperature performance tries
It tests, is in multifunction valve room temperature air-tight test one or more；Wherein：
1）The return-air shut-off valve room temperature high-low pressure air-tight test includes the following steps：
a）Lay down the motion valve assemblage of multifunction valve；
b）Solar term valve insert and air throttle plug are fixed on to the valve deck threaded connection place of motion valve assemblage；
c）Main safety valve and time safety valve are laid down, plug is used in combination to seal screw socket；
d）Two joint areas of liquid level gauge adapter assembly are sealed；
e）The gas outlet of pipeline is tested into the air inlet of gaseous test system and the gas phase interface of test fixture connects, outlet is surveyed
The air inlet in test tube road is connect with multifunction valve return-air interface；
f）The shut-off valve for closing the shut-off valve and small gas cylinder lateral in gaseous test system on outlet test pipeline, beats
Drive the shut-off valve on gas test pipeline into, the outlet pressure for adjusting pressure reducing valve is 0.04-0.06MPa, while by return-air shut-off valve
It is respectively at closing and arbitrary open state, pressurize at least 1min No leakages；
2）It is described go out liquid shut-off valve room temperature high-low pressure air-tight test experiment include the following steps：
a）Lay down the motion valve assemblage of multifunction valve；
b）Solar term valve insert and air throttle plug are installed to the valve deck threaded connection place for being fixed on motion valve assemblage；
c）The gas outlet that the air inlet of gaseous test system is tested to pipeline is connected to the outlet connector of test fixture, and outlet is surveyed
The air inlet in test tube road and the excess flow valve orifice of multifunction valve；
d）The shut-off valve for closing the shut-off valve and small gas cylinder lateral in gaseous test system on outlet test pipeline, beats
Drive the shut-off valve on gas test pipeline into, the outlet pressure for adjusting pressure reducing valve is 0.04-0.06MPa, while by return-air shut-off valve
It is respectively at closing and arbitrary open state, pressurize at least 1min No leakages；
3）Excess flow valve performance test includes the following steps：
a）Lay down the motion valve assemblage of multifunction valve；
b）Solar term valve insert and air throttle plug are installed to the valve deck threaded connection place for being fixed on motion valve assemblage；
c）The liquid outlet that liquid is tested to the feed liquor test pipeline of system is connected to the outlet connector of test fixture, goes out liquid survey
The inlet in test tube road and the excess flow valve orifice of multifunction valve；
d）Open out liquid shut-off valve；
e）The shut-off valve and go out the shut-off valve on liquid test pipeline that liquid is tested on the feed liquor test pipeline of system are closed, is opened
The shut-off valve and go out the shut-off valve on liquid test pipeline that constant voltage water pump is after pressure stabilisation, and unlatching feed liquor is tested on pipeline are opened, so
The shut-off valve on feed liquor test pipeline is slowly opened afterwards, and is stepped up the flow of test(ing) medium, until excess flow valve is automatically closed,
Pressure difference in the moment record sample both sides that excess flow valve is closed, and stream when excess flow valve is automatically closed is read by flowmeter
Amount；
f）After excess flow valve is automatically closed, each shut-off valve of liquid test system is slowly opened again, observes test(ing) medium
Whether can normally flow out；
4）The filling liquid check-valves performance test includes the following steps：
4.1）, leak test：
a）The gas outlet that the air inlet of gaseous test system is tested to pipeline is connected to the liquid inlet joint of test fixture, multi-functional
Entrance connecting test hose outside the filling liquid of valve；
b）The shut-off valve on the annoying air inlet test pipeline of gaseous test system is opened, section with small gas cylinder lateral is closed
Only valve, the outlet pressure for adjusting pressure reducing valve are 0.04-0.06MPa, and check inlet connecting test hose whether there is leakage；
4.2）, leakage test：
a）The air inlet of gaseous test system is tested to entrance outside the gas outlet of pipeline and the filling liquid of multifunction valve to connect；
b）The liquid inlet joint of closed test tooling；
c）It is full of test(ing) medium into multifunction valve, is gradually pressurized to defined test pressure, checks the close of multifunction valve
Seal situation；
5）, air throttle room temperature performance experiment includes the following steps：
a）In place by the assembly of motion valve assemblage, main safety valve and secondary safety valve；
b）The gas outlet of pipeline is tested into the air inlet of gaseous test system and the gas phase connector of test fixture connects, outlet is surveyed
The air inlet in test tube road and the excess flow valve orifice of multifunction valve；
c）Return-air shut-off valve is closed, liquid shut-off valve, the outlet connector of closed test tooling are opened out；
d）Open gaseous test system air inlet test pipeline on shut-off valve, small gas cylinder lateral shut-off valve and go out
Gas tests the shut-off valve on pipeline, gradually adjusts the outlet pressure of pressure reducing valve, until going out for the shut-off valve on outlet test pipeline
Gas port has gas appearance, while the pressure value by pressure gauge record at this time；
e）The shut-off valve on the air inlet test pipeline of gaseous test system is closed, the shut-off valve on outlet test pipeline
Gas outlet occur without gas, while passing through pressure gauge record pressure value at this time；
6）, the multifunction valve room temperature air-tight test includes the following steps：
a）The gas outlet of pipeline is tested into the air inlet of gaseous test system and the gas phase connector of test fixture connects, is opened more
The return-air shut-off valve of duty valve and go out liquid shut-off valve, the return-air interface of the liquid inlet joint of closed test tooling and the multifunction valve
With excess flow valve interface；
b）It opens the shut-off valve that air inlet is tested on pipeline in gaseous test system, the shut-off valve of small gas cylinder lateral and goes out
Gas tests the shut-off valve on pipeline, and the outlet pressure for gradually adjusting pressure reducing valve is 1.3-1.8MPa, pressurize at least 10min；
c）The threaded connection place and outer surface for checking multifunction valve whether there is gas leakage.
By above structure, the present invention will in the prior art to excess flow valve, economic air throttle, filling liquid check-valves and return-air/
Go out liquid shut-off valve test method and test device according to multifunction valve requirement, using first high pressure, rear low pressure, first individually, after
Integrated principle is redesigned, and makes the test method designed and test device that can be surveyed to free-standing valve
Examination, and excess flow valve, economic air throttle, filling liquid check-valves and the return-air on multifunction valve/go out liquid shut-off valve can be tested, also
The manufacture performance of multifunction valve can be tested.
The characteristics of present invention is according to Vehicular liquefied natural gas cylinder multifunction valve, in conjunction with excess flow valve in the prior art, warp
Ji air throttle, filling liquid check-valves and return-air/and go out liquid shut-off valve, a gaseous state and liquid test system are separately designed, it will be multi-functional
Valve is mounted on test fixture, and gaseous state or liquid are tested the interface of system and corresponding survey according to the requirement of different test events
Interface connection is loaded onto in trial work, and is equipped with different components, completes the various tests of different valves.
Compared with prior art, the beneficial effects of the invention are as follows：
1）The test method and test device solve the entirety of multifunction valve and the test problem of single valve；
2）The test method and test device meet requirement of the multifunction valve exfactory inspection to detection device；
3）Room temperature air source and liquid medium are changed to cryogenic media by the test device, and addition fatigue experimental device and vibration try
Experiment device can carry out the low temperature of multifunction valve, fatigue, vibration test, meet the requirement of type approval test.
Below in conjunction with drawings and examples, the present invention is further elaborated.
Description of the drawings
Fig. 1 is the structural schematic diagram of test job of the present invention；a）For front view, b）For vertical view；
Fig. 2 is gaseous test system diagram of the present invention；
Fig. 3 is liquid measurement system diagram of the present invention；
Fig. 4 sections air valve stopper structure schematic diagram of the present invention；
Fig. 5 is multifunction valve mounting structure schematic diagram of the present invention；
Fig. 6 is the X-X sectional views of Fig. 5；
Fig. 7 is the Y-Y sectional stretch-out views of Fig. 5；
Fig. 8 is the Z-Z sectional stretch-out views of Fig. 5.
Specific implementation mode
A kind of automobile-used LNG gas cylinders multifunction valve test system, includes such as test fixture as shown in Figure 1, as shown in Figure 2
Gaseous test system, liquid as shown in Figure 3 test system, air throttle plug as shown in Figure 4, and as shown in Figure 5 more
Duty valves 20 etc. form.
As shown in Figure 1, the structure of test fixture is mainly connect by platen 21, circular mounting plate 22, gas phase connector 23, feed liquor
First 24 and 25 groups of outlet connector weld, be provided with 3 counterbores on upper circular mounting plate 22, built-in sealing element is provided with 6 on circumference
A threaded hole is used for connecting test system for installing multifunction valve, the nipple of lower part three.
As shown in Fig. 2, gaseous test system is by gas cylinder 31, shut-off valve 32,38,39,42, pressure gauge 33,35,41 subtracts
Pressure valve 34, thermometer 36, safety valve 37, small gas cylinder 40 form.It is mainly used for the test of the room temperature gaseous medium of multifunction valve.
As shown in figure 3, liquid test system is by constant voltage water pump 51, shut-off valve 52,55,58,50, pressure gauge 53,57,
59, water tank of voltage regulation 54, flowmeter 56 forms.It is mainly used for the test of the room temperature liquid medium of multifunction valve.
The structure of air throttle plug 16 is as shown in figure 4, it is mainly used for during the test, after motion valve assemblage is removed
Block the channel of air throttle.
As shown in figure 5, multifunction valve 20 includes valve body 2, liquid level gauge adapter assembly 3, return-air section on test fixture 1
Only valve module 4, filling liquid non-return valve union 5, go out liquid shut-off valve 6, be overcurrent valve union 7, motion valve assemblage 8, bolt 9, spring washer 10, main
Safety valve 11, secondary safety valve 12, pressure gauge 13, air outlet adapter 14, solar term valve insert 15, air throttle plug 16, interior check-valves
17, bushing 18, sealing element 19.It is provided with filling liquid interior inlet B on the valve body, is connect with gas entrance A, with liquid entrance C, liquid level gauge
Mouth, economic air throttle interface, with outside liquid shut-off valve interface, return-air shut-off valve interface, relief valve connection, excess flow valve interface N, filling liquid
Portion entrance I, return-air interface M；Filling liquid check valve assembly is housed on the filling liquid interior inlet B, is equipped with and turns on the use gas entrance A
Changing-over head is equipped with liquid level gauge adapter assembly on the interface of the level gauge, economic air throttle is housed on the economic air throttle interface
Component, it is described with liquid shut-off valve assemblies are equipped with out on liquid shut-off valve interface, end equipped with return-air on the return-air shut-off valve interface
Valve module is equipped with safety valve on the relief valve connection, and overcurrent valve union is housed on the excess flow valve interface N, outside the filling liquid
Filling liquid non-return valve union is housed, return-air, which is housed, on the return-air interface M ends valve union on portion entrance I；The use gas entrance A,
Economic air throttle interface can be sequentially communicated and formation gas channel with liquid shut-off valve interface, excess flow valve interface N；The liquid enters
Mouth C, it can be sequentially communicated and formation liquid channel with liquid shut-off valve interface, excess flow valve interface N；Gas entrance A, the return-air cut-off
Valve interface, return-air interface M can be sequentially communicated and form return gas channel；Entrance I, the B connections of filling liquid interior inlet outside the filling liquid
And form filling liquid channel；It is described to be connected to gas entrance A, relief valve connection and form pressure measurement channel.
Multifunction valve is installed as：First the interior check-valves 17 of multifunction valve is first passed through and is threadably mounted on bushing 18, then
They are fitted into the corresponding cylinder shape groove of 2 bottom groove of valve body and test device top for being placed with sealing element 19, it is multi-functional
Bushing 18 and sealing element 19 are installed at another two pipe passages corresponding in test device of valve body bottom surface, what is assembled is more
Duty valve is fixed by 6 groups of bolts 9 and spring washer 10 with test fixture again.
When specific progress testing experiment：
1,4 room temperature high and low pressure air-tight test of return-air shut-off valve：
a）Air throttle is laid down；
b）Solar term valve insert 15 and air throttle plug 16 are installed to air throttle valve deck threaded connection place and tightened.
c）By main safety valve 11, secondary safety valve 12 is laid down, and is sealed screw socket with screw plug.
d）Two joint areas of liquid level gauge adapter assembly are sealed with plug is carried.
e）D mouths in gaseous test system diagram 2 are connect with the gas phase connector 23 of test fixture, E mouthfuls and Fig. 7 of M mouths connect
It connects.
f）The shut-off valve 38,42 in gaseous test system diagram 2 is closed, shut-off valve 32,39 is opened, adjusts going out for pressure reducing valve 34
Mouth pressure is 1.2 times of nominal pressures or 0.05MPa, return-air shut-off valve 4 is in closing and arbitrary open state, difference pressurize is extremely
Few 1min answers No leakage, side qualified for detection.
2, go out 6 room temperature high and low pressure air-tight test of liquid shut-off valve：
a）Motion valve assemblage is laid down；
b）Solar term valve insert 15 and air throttle plug 16 are installed to air throttle valve deck threaded connection place and tightened.
c）D mouths in gaseous test system diagram 2 are connect with the outlet connector 25 of test fixture, E mouthfuls and Fig. 8 of N mouths connect
It connects.
d）The shut-off valve 38,42 in gaseous test system diagram 2 is closed, shut-off valve 32,39 is opened, adjusts going out for pressure reducing valve 34
Mouth pressure is 1.2 times of nominal pressures or 0.05MPa, will go out liquid shut-off valve 6 and is in closing and arbitrary open state, difference pressurize is extremely
Few 1min answers No leakage, side qualified for detection.
3, excess flow valve performance test：
a）Air throttle is laid down；
b）Solar term valve insert 15 and air throttle plug 16 are installed to air throttle valve deck threaded connection place and tightened.
c）J mouths in liquid measurement system diagram 3 are connect with the outlet connector 25 of test fixture, H mouthfuls and Fig. 8 of N mouths connect
It connects.
d）Open out liquid shut-off valve 6.
e）The shut-off valve 55,58,50 in liquid measurement system diagram 3 is closed, constant voltage water pump 51 is opened, waits for water tank of voltage regulation 52
After pressure stability, opening stop valve 55,50, slow opening stop valve 58, slowly increase the flow of test(ing) medium, until overcurrent
Valve is automatically closed, the pressure difference in the moment record sample both sides that excess flow valve is closed, and the flow closed is read from flowmeter.
f）After excess flow valve is automatically closed, closes shut-off valve and slowly open shut-off valve again again, whether observation water can normal stream
Go out, can the side of outflow be normally that detection is qualified.
4, filling liquid check-valves performance test：
4.1, leak test：
a）D mouths in gaseous test system diagram 2 are connect with the liquid inlet joint 24 of test fixture, the I mouth connecting tests of Fig. 6
Hose.
b）The shut-off valve 32,39 in gaseous test system diagram 2 is opened, shut-off valve 38 is closed, adjusts the outlet of pressure reducing valve 34
Pressure is maximum working pressure or 0.05MPa, checks the leakage situation of inlet connecting test hose, is then examined if there is leakage
It surveys unqualified.
4.2, leakage test：
a）D mouths in gaseous test system diagram 2 are connect with the I of Fig. 6 mouths.
b）The liquid inlet joint 24 of closed test tooling.
c）To test(ing) medium is full of in valve, it is gradually pressurized to defined test pressure, the sealing situation of check valve, such as
Fruit there are gas leakage now will then detect it is unqualified.
5, air throttle room temperature performance is tested：
a）Shown in Fig. 5,6, motion valve assemblage and primary and secondary safety valve are assembled in place.
b）D mouths in gaseous test system diagram 2 are connect with the gas phase connector 23 of test fixture, E mouthfuls and Fig. 8 of N mouths connect
It connects.
c）The return-air shut-off valve 4 in Fig. 5 is closed, liquid shut-off valve 6, the outlet connector 25 of closed test tooling are opened out.
d）The shut-off valve 32,38,39,42 in gaseous test system diagram 2 is opened, the outlet pressure of pressure reducing valve 34 is slowly adjusted
Power, until the F mouths of shut-off valve 42 have gas appearance, the pressure value of recording manometer 35,41.
e）The shut-off valve 32 in gaseous test system diagram 2 is closed, until the F mouths of shut-off valve 42 occur without gas, record is pressed
The pressure value of power table 35,41.
Air throttle room temperature performance is tested：
6, multifunction valve room temperature air-tight test：
a）D mouths in gaseous test system diagram 2 are connect with the gas phase connector 23 of test fixture, return-air in Fig. 5 is opened and cuts
Only valve 4 and go out liquid shut-off valve 6, the liquid inlet joint 24 of closed test tooling and M mouths of multifunction valve and N mouthfuls.
b）32,38,39,42 shut-off valves in gaseous test system diagram 2 are opened, the outlet pressure of pressure reducing valve 34 is slowly adjusted
For 1.5MPa, pressurize 15min.
c）It is that detection is closed to check that there are bubble-free, bubble-free side in the threaded connection place of multifunction valve and outer surface with suds
Lattice.
The content that above-described embodiment illustrates should be understood as that these embodiments are only used for being illustrated more clearly that the present invention, without
For limiting the scope of the invention, after having read the present invention, various equivalent forms of the those skilled in the art to the present invention
Modification each fall within the application range as defined in the appended claims.
Claims (7)
1. a kind of automobile-used LNG gas cylinders multifunction valve tests system, including with gas phase connector（23）, liquid inlet joint（24）With go out liquid
Connector（25）Test fixture（1）, it is mounted in test fixture（1）On multifunction valve；It is characterized in that, further including to multifunction valve
（20）Corresponding valve port carry out gaseous test gaseous test system and carry out liquid test liquid test system；
The gaseous test system includes one end and gas cylinder（31）Gas outlet connection, the other end and multifunction valve（20）It is corresponding into
Pipeline, one end and multifunction valve are tested in the air inlet of valve port while connection（20）Corresponding outlet valve port connection, the other end emptying go out
Gas tests pipeline；Pressure reducing valve is housed on the air inlet test pipeline（34）, safety valve（37）, multiple shut-off valves（32,39,42）With
Multiple pressure gauges（33,35,41）, air inlet test pipeline is also by being equipped with shut-off valve（38）Small gas cylinder lateral and one small
Gas cylinder（40）Connection；Pressure gauge is housed on the outlet test pipeline（39）And shut-off valve（41）；
The liquid test system includes one end and constant voltage water pump（51）Liquid outlet connection, the other end and multifunction valve（20）'s
The feed liquor of corresponding feed liquor valve port connection tests pipeline, one end and multifunction valve（20）Corresponding liquid valve mouth connection, the other end row
Empty goes out liquid test pipeline；Shut-off valve is housed on the feed liquor test pipeline（51,58）And pressure gauge（57）, it is described go out liquid test
Pressure gauge is housed on pipeline（59）And shut-off valve（50）.
2. automobile-used LNG gas cylinders multifunction valve according to claim 1 tests system, which is characterized in that the test fixture
（1）Including platen（21）, it is mounted in platen（21）On for installing multifunction valve（20）Mounting plate（22）And it is mounted in platen
（21）On gas phase connector（23）, liquid inlet joint（24）And outlet connector（25）.
3. automobile-used LNG gas cylinders multifunction valve according to claim 1 tests system, which is characterized in that the feed liquor test
Water tank of voltage regulation is housed on pipeline（54）And flowmeter（56）.
4. automobile-used LNG gas cylinders multifunction valve according to claim 3 tests system, which is characterized in that the water tank of voltage regulation
（54）It is upper that pressure gauge is housed（53）And shut-off valve（52）.
5. the automobile-used LNG gas cylinders multifunction valve according to one of claim 1-4 tests system, which is characterized in that described more
Duty valve（20）Including valve body（2）, it is arranged in valve body（2）On liquid level gauge adapter assembly（3）, return-air shut-off valve assemblies（4）, fill
Liquid non-return valve union（5）, go out liquid shut-off valve（6）, overcurrent valve union（7）, motion valve assemblage（8）, main safety valve（11）, secondary safety
Valve（12）, pressure gauge（13）, air outlet adapter（14）, solar term valve insert（15）, air throttle plug（16）, interior check-valves（17）、
Bushing（18）, sealing element（19）.
6. automobile-used LNG gas cylinders multifunction valve according to claim 5 tests system, which is characterized in that the valve body（2）On
It is provided with filling liquid interior inlet（B）, with gas entrance（A）, with liquid entrance（C）, excess flow valve interface（N）, entrance outside filling liquid（I）, return
Gas interface（M）；The filling liquid interior inlet（B）It is upper that filling liquid check valve assembly, the gas entrance are housed（A）It is upper to be connect equipped with conversion
Head, the excess flow valve interface（N）It is upper that overcurrent valve union, filling liquid outside entrance are housed（I）It is upper that filling liquid non-return valve union is housed,
The return-air interface（M）It is upper to end valve union equipped with return-air.
7. a kind of survey multifunction valve using the automobile-used LNG gas cylinders multifunction valve test system of one of claim 1-4 or 6
The method of examination, the multifunction valve（20）Including valve body（2）, it is arranged in valve body（2）On liquid level gauge adapter assembly（3）, return-air
Shut-off valve assemblies（4）, filling liquid non-return valve union（5）, go out liquid shut-off valve（6）, overcurrent valve union（7）, motion valve assemblage（8）, it is main
Safety valve（11）, secondary safety valve（12）, pressure gauge（13）, air outlet adapter（14）, solar term valve insert（15）, air throttle plug
（16）, interior check-valves（17）, bushing（18）, sealing element（19）；The valve body（2）On be provided with filling liquid interior inlet（B）, entered with gas
Mouthful（A）, with liquid entrance（C）, excess flow valve interface（N）, entrance outside filling liquid（I）, return-air interface（M）；The filling liquid interior inlet
（B）It is upper that filling liquid check valve assembly, the gas entrance are housed（A）It is upper that crossover sub, the excess flow valve interface are housed（N）On be equipped with
Overcurrent valve union, filling liquid outside entrance（I）It is upper that filling liquid non-return valve union, the return-air interface are housed（M）It is upper that return-air is housed
End valve union；Include return-air shut-off valve room temperature high-low pressure air-tight test, go out it is characterized in that, carrying out test to multifunction valve
Liquid shut-off valve（6）Room temperature high-low pressure air-tight test, excess flow valve performance test, filling liquid check-valves performance test, air throttle room temperature
It is one or more in performance experiment, multifunction valve room temperature air-tight test；Wherein：
1）The return-air shut-off valve room temperature high-low pressure air-tight test includes the following steps：
a）Lay down the motion valve assemblage of multifunction valve（8）；
b）By solar term valve insert（15）With air throttle plug（16）It is fixed on motion valve assemblage（8）Valve deck threaded connection place；
c）Lay down main safety valve（11）With secondary safety valve（12）, plug is used in combination to seal screw socket；
d）By liquid level gauge adapter assembly（3）Two joint areas sealing；
e）The air inlet of gaseous test system is tested to the gas outlet of pipeline（D）With test fixture（1）Gas phase connector（23）Connection,
Outlet tests the air inlet of pipeline（E）With multifunction valve return-air interface（M）Connection；
f）Close the shut-off valve on outlet test pipeline in gaseous test system（42）With the shut-off valve of small gas cylinder lateral
（38）, open the shut-off valve on air inlet test pipeline（32,39）, adjust pressure reducing valve（34）Outlet pressure be 0.04-
0.06MPa, while by return-air shut-off valve assemblies（4）It is respectively at closing or arbitrary open state, pressurize at least 1min No leakages；
2）It is described go out liquid shut-off valve room temperature high-low pressure air-tight test include the following steps：
a）Lay down the motion valve assemblage of multifunction valve（8）；
b）By solar term valve insert（15）With air throttle plug（16）It is installed to and is fixed on motion valve assemblage（8）Valve deck screw thread connect
Meet place；
c）The air inlet of gaseous test system is tested to the gas outlet of pipeline（D）With test fixture（1）Outlet connector（25）Connection,
Outlet tests the air inlet of pipeline（E）With the excess flow valve interface of multifunction valve（N）Connection；
d）Close the shut-off valve on outlet test pipeline in gaseous test system（42）With the shut-off valve of small gas cylinder lateral
（38）, open the shut-off valve on air inlet test pipeline（32,39）, adjust pressure reducing valve（34）Outlet pressure be 0.04-
0.06MPa, while by return-air shut-off valve assemblies（4）It is respectively at closing and arbitrary open state, pressurize at least 1min No leakages；
3）Excess flow valve performance test includes the following steps：
a）Lay down the motion valve assemblage of multifunction valve（8）；
b）By solar term valve insert（15）With air throttle plug（16）It is installed to and is fixed on motion valve assemblage（8）Valve deck screw thread connect
Meet place；
c）The feed liquor that liquid is tested to system tests the liquid outlet of pipeline（J）With test fixture（1）Outlet connector（25）Connection,
Go out the inlet of liquid test pipeline（H）With the excess flow valve interface of multifunction valve（N）Connection；
d）Open out liquid shut-off valve（6）；
e）Close the shut-off valve on the feed liquor test pipeline of liquid test system（55,58）With go out liquid test pipeline on shut-off valve
（50）, open constant voltage water pump（51）It is after pressure stabilisation, open the shut-off valve on feed liquor test pipeline（55）With go out liquid testing tube
Shut-off valve on road（50）, then slowly open the shut-off valve on feed liquor test pipeline（58）, and it is stepped up test(ing) medium
Flow, until excess flow valve is automatically closed, the pressure difference in the moment record sample both sides that excess flow valve is closed, and read by flowmeter
Flow when excess flow valve being taken to be automatically closed；
f）After excess flow valve is automatically closed, each shut-off valve of liquid test system is slowly opened again, whether is observation test(ing) medium
It can normally flow out；
4）The filling liquid check-valves performance test includes the following steps：
4.1）, leak test：
a）The air inlet of gaseous test system is tested to the gas outlet of pipeline（D）With test fixture（1）Liquid inlet joint（24）Connection,
Multifunction valve（20）Filling liquid outside entrance（I）Connecting test hose；
b）Open the shut-off valve on gaseous test system air inlet test pipeline（32,39）, close section with small gas cylinder lateral
Only valve（38）, adjust pressure reducing valve（34）Outlet pressure be 0.04-0.06MPa, check filling liquid outside entrance（I connecting tests are soft
Pipe is with the presence or absence of leakage；
4.2）, leakage test：
a）The air inlet of gaseous test system is tested to the gas outlet of pipeline（D）With multifunction valve（20）Filling liquid outside entrance（I）
Connection；
b）Closed test tooling（1）Liquid inlet joint（24）；
c）To multifunction valve（20）It is interior to be full of test(ing) medium, it is gradually pressurized to defined test pressure, checks multifunction valve（20）
Sealing situation；
5）, air throttle room temperature performance experiment includes the following steps：
a）By motion valve assemblage（8）, main safety valve（11）With secondary safety valve（12）Assembly is in place；
b）The air inlet of gaseous test system is tested to the gas outlet of pipeline（D）With test fixture（1）Gas phase connector（23）Connection,
Outlet tests the air inlet of pipeline（E）With the excess flow valve interface of multifunction valve（N）Connection；
c）Close return-air shut-off valve assemblies（4）, open out liquid shut-off valve（6）, closed test tooling（1）Outlet connector（25）；
d）Open the shut-off valve on the air inlet test pipeline of gaseous test system（32,39）, small gas cylinder lateral shut-off valve
（38）With the shut-off valve on outlet test pipeline（42）, gradually adjust pressure reducing valve（34）Outlet pressure, until outlet testing tube
Shut-off valve on road（42）Gas outlet（F）There is gas appearance, while passing through pressure gauge（35,41）The pressure value of record at this time；
e）Close the shut-off valve on the air inlet test pipeline of gaseous test system（32）, the shut-off valve on outlet test pipeline
（42）Gas outlet（F）No gas occurs, while passing through pressure gauge（35,41）The pressure value of record at this time；
6）, the multifunction valve room temperature air-tight test includes the following steps：
a）The air inlet of gaseous test system is tested to the gas outlet of pipeline（D）With test fixture（1）Gas phase connector（23）Connection,
Open multifunction valve（20）Return-air shut-off valve assemblies（4）With go out liquid shut-off valve（6）, closed test tooling（1）Liquid inlet joint
（24）With the multifunction valve（20）Return-air interface（M）With excess flow valve interface（N）；
b）Open the shut-off valve on air inlet test pipeline in gaseous test system（32,39）, small gas cylinder lateral shut-off valve
（38）With the shut-off valve on outlet test pipeline（42）, gradually adjust pressure reducing valve（34）Outlet pressure be 1.3-1.8MPa, protect
It is depressed into few 10min；
c）Check multifunction valve（20）Threaded connection place and outer surface whether there is gas leakage.
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| CN108279118A (en) * | 2017-12-25 | 2018-07-13 | 中海油研究总院有限责任公司 | Subsea production tree tests system |
| CN111551360B (en) * | 2020-06-24 | 2022-11-01 | 广西鸿泰防护设备检测有限公司 | Method for testing dynamic characteristics of manual and electric closed valve |
| CN111964896A (en) * | 2020-07-02 | 2020-11-20 | 李思 | One-stop multifunctional assembly test line |
| CN114252255A (en) * | 2021-11-24 | 2022-03-29 | 沈阳航天新光集团有限公司 | Integrated valve comprehensive test system and test method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1825081A (en) * | 2006-03-28 | 2006-08-30 | 保一集团有限公司 | Low temp. valve performance measuring system based on computer data acquiring |
| CN201803838U (en) * | 2010-09-20 | 2011-04-20 | 杭州春江阀门有限公司 | Multifunctional valve testing system |
| CN202033253U (en) * | 2010-12-09 | 2011-11-09 | 苏州锦鹏机电设备制造有限公司 | Valve pressure testing medium system |
| CN202580246U (en) * | 2012-03-31 | 2012-12-05 | 马钢(集团)控股有限公司 | Device for solving faults of valves in air separation system |
| CN203385622U (en) * | 2013-08-07 | 2014-01-08 | 湖北航天三江红林机电科技有限公司 | Water pressure testing device for mechanical product |
| CN203940223U (en) * | 2013-12-06 | 2014-11-12 | 中国石油天然气股份有限公司 | A kind of valve pocket gas injection device |
| CN105042330A (en) * | 2015-08-27 | 2015-11-11 | 江南工业集团有限公司 | Multifunctional valve of liquefied natural gas cylinder and method for controlling liquid charging and discharging |
| CN205120319U (en) * | 2015-11-25 | 2016-03-30 | 江南工业集团有限公司 | Multi -functional valve test system of automobile -used LNG gas cylinder |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5572370B2 (en) * | 2009-12-01 | 2014-08-13 | 岩谷産業株式会社 | Filling control equipment for high-pressure hydrogen test facilities and high-pressure hydrogen filling facilities |
-
2015
- 2015-11-25 CN CN201510836894.2A patent/CN105300614B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1825081A (en) * | 2006-03-28 | 2006-08-30 | 保一集团有限公司 | Low temp. valve performance measuring system based on computer data acquiring |
| CN201803838U (en) * | 2010-09-20 | 2011-04-20 | 杭州春江阀门有限公司 | Multifunctional valve testing system |
| CN202033253U (en) * | 2010-12-09 | 2011-11-09 | 苏州锦鹏机电设备制造有限公司 | Valve pressure testing medium system |
| CN202580246U (en) * | 2012-03-31 | 2012-12-05 | 马钢(集团)控股有限公司 | Device for solving faults of valves in air separation system |
| CN203385622U (en) * | 2013-08-07 | 2014-01-08 | 湖北航天三江红林机电科技有限公司 | Water pressure testing device for mechanical product |
| CN203940223U (en) * | 2013-12-06 | 2014-11-12 | 中国石油天然气股份有限公司 | A kind of valve pocket gas injection device |
| CN105042330A (en) * | 2015-08-27 | 2015-11-11 | 江南工业集团有限公司 | Multifunctional valve of liquefied natural gas cylinder and method for controlling liquid charging and discharging |
| CN205120319U (en) * | 2015-11-25 | 2016-03-30 | 江南工业集团有限公司 | Multi -functional valve test system of automobile -used LNG gas cylinder |
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