CN203731083U - Valve detecting device for liquefied natural gas cylinder - Google Patents
Valve detecting device for liquefied natural gas cylinder Download PDFInfo
- Publication number
- CN203731083U CN203731083U CN201420077073.6U CN201420077073U CN203731083U CN 203731083 U CN203731083 U CN 203731083U CN 201420077073 U CN201420077073 U CN 201420077073U CN 203731083 U CN203731083 U CN 203731083U
- Authority
- CN
- China
- Prior art keywords
- valve
- stop valve
- gas bottle
- pressure
- liquefied natural
- 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 - Fee Related
Links
- 239000003949 liquefied natural gas Substances 0.000 title claims abstract description 16
- 239000007789 gas Substances 0.000 claims abstract description 38
- 238000001514 detection method Methods 0.000 claims description 15
- 230000000087 stabilizing Effects 0.000 abstract 3
- 230000001808 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000001105 regulatory Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Abstract
The utility model relates to a valve detecting device for a liquefied natural gas cylinder. The device can simulate the working condition of the liquefied natural gas cylinder, can test and check working performance parameters of valves and can guarantee work reliability of the valves. The valve detecting device for the liquefied natural gas cylinder comprises a gas inlet stop valve, a pressure stabilizing valve, a gas collecting cylinder, a pressure meter, a gas outlet stop valve, a blow-down pipe and a blow-down stop valve, wherein the gas inlet stop valve is connected with one end of the pressure stabilizing valve through a valve connector, the other end of the pressure stabilizing valve is connected with one end of the gas collecting cylinder through a pipeline, the other end of the gas collecting cylinder is connected with the blow-down stop valve, a valve connector used for detecting the valves is arranged on the blow-down stop valve, the pressure meter and the gas outlet stop valve are arranged on the gas collecting cylinder, and the gas outlet stop valve is connected with the blow-down pipe.
Description
Technical field
The utility model relates to a kind of detection device, particularly a kind of for the valve detection device on Vehicular liquefied natural gas cylinder.
Background technique
At present, Vehicular liquefied natural gas cylinder always occurs that economic valve leaks, and does not work.Safety valve jumping up does not return seat or under required pressure, opens.Pressure charging valve can not be opened under satisfactory pressure.Just require a kind of test that can carry out to these valves Reality simulation work at low-down temperature, ensure the reliability of various valves, while avoiding each valve to be used on liquefied natural gas bottle, occur variety of issue.
Model utility content
For deficiency of the prior art, the utility model provides a kind of detection device that detects liquefied natural gas bottle valve that is specifically designed to, it can simulate liquefied natural gas bottle operating mode, and the each valve working performance parameter of energy test and check, ensures its functional reliability.
In order to address the above problem, this kind of liquefied natural gas bottle valve detection device, it comprises: air inlet stop valve, pressure maintaining valve, gas bottle, pressure gauge, the stop valve of giving vent to anger, blow-down pipe and vent stop valve;
Air inlet stop valve is connected with pressure maintaining valve one end by Valve joint, the other end of pressure maintaining valve is connected with one end of gas bottle by pipeline, the other end of gas bottle is connected with vent stop valve, vent stop valve is provided with the Valve joint for detection of valve, gas bottle is provided with pressure gauge and the stop valve of giving vent to anger, and the stop valve of giving vent to anger is connected with blow-down pipe.
Preferably, described pressure gauge is connected with a high-precision pressure gauge by a stop valve for pressure gauge.
More preferably, described pressure maintaining valve is connected with described gas bottle with metallic hose by kink joint.
The beneficial effects of the utility model are: the relevant parameter of valve when this special valve detection device can detect and verify the work of low-temperature liquefaction natural gas cylinder; Described valve inipple, metal air induction hose, kink joint, tested Valve joint are and are threaded and are flexible coupling, and removable and replaceable is strong.A whole set of valve detection device is simple in structure, safe and reliable, workable, and strong adaptability can carry out the functional reliability parameter detecting of multiple valve (economic valve, safety valve and pressure charging valve).
Brief description of the drawings
Fig. 1 is the structural representation of liquefied natural gas bottle of the present utility model valve detection device.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
As shown in Figure 1, this kind of liquefied natural gas bottle valve detection device, it comprises: air inlet stop valve 1, pressure maintaining valve 4, gas bottle 10, pressure gauge 7, the stop valve 11 of giving vent to anger, blow-down pipe 12 and vent stop valve 13.Air inlet stop valve 1 is connected with pressure maintaining valve 4 one end with pressure maintaining valve adapter assembly 3 by valve inipple 2, the other end of pressure maintaining valve 4 is connected with one end of gas bottle 10 with metallic hose 6 by kink joint 5, the other end of gas bottle 10 is connected with vent stop valve 13, and this vent stop valve 13 is provided with the Valve joint 14 for detection of valve.On gas bottle 10, be provided with pressure gauge 7, this pressure gauge 7 is connected with a high-precision pressure gauge 9 by a stop valve for pressure gauge 8, and high-precision pressure gauge is for ordinarily manometer 7, and its precision is higher than pressure gauge 7, for calibrating to common pressure gauge 7.On this gas bottle, be also provided with the stop valve 11 of giving vent to anger, the stop valve 11 of giving vent to anger is connected with blow-down pipe 12.
First this device is carried out to calibration operation: open air inlet stop valve 1 and stop valve for pressure gauge 8, close give vent to anger stop valve 11 and vent stop valve 13, regulate pressure maintaining valve 4, to gas bottle inflation, utilize high-precision pressure gauge to calibrate ordinarily manometer simultaneously.After finishing, calibration opens vent stop valve emptying gas bottle.(generally, 2～3d detects once ordinarily manometer), so repeats several times, pressure gauge is calibrated complete.
In the time detecting economic valve, economic valve is arranged on the Valve joint 14 of vent stop valve 13 rear ends.Open air inlet stop valve, pressure maintaining valve, close the stop valve of giving vent to anger, vent stop valve and stop valve for pressure gauge.Adjust pressure maintaining valve by gas bottle pressure stability at 1.3MPa, regulating economy valve make its in the time that gas bottle pressure is 1.3MPa, opens and reach satisfactory go out throughput, while because the interaction energy of economic valve makes gas bottle pressure stability at 1.3MPa.When gas bottle pressure < 1.3MPa, economic valve is in closed condition.
In the time detecting safety valve, safety valve is arranged on the Valve joint 14 of vent stop valve 13 rear ends.Open air inlet stop valve, pressure maintaining valve, close the stop valve of giving vent to anger, vent stop valve and stop valve for pressure gauge.Along with the prolongation of inflationtime, gas bottle pressure rises gradually, in the time of gas bottle internal pressure > 1.59MPa, checks normally take-off of safety valve; In the time of gas bottle pressure < 1.59MPa, check that can safety valve normally return seat, regulate pressure maintaining valve, make gas bottle pressure at the upper and lower circular wave of 1.59MPa, check repeatedly continuously normal take-off and time seat of safety valve.
While detecting pressure charging valve, pressure charging valve is arranged on to air inlet stop valve front end, opens air inlet stop valve, pressure maintaining valve, close the stop valve of giving vent to anger, vent stop valve and stop valve for pressure gauge, check that gas bottle pressure could be stabilized in 0.9MPa.In the time of gas bottle pressure < 0.9MPa, pressure charging valve one direct-open, makes gas bottle pressure rise, and while being 0.9MPa to pressure gauge registration, pressure charging valve cuts out, and gas bottle pressure is not changing.
It should be noted that; embodiment is only explanation and the explanation to technical solutions of the utility model; should not be understood as the restriction to technical solutions of the utility model; any employing the technical solution of the utility model and only do local change, must fall in protection domain of the present utility model.
Claims (3)
1. a liquefied natural gas bottle valve detection device, is characterized in that comprising: air inlet stop valve (1), pressure maintaining valve (4), gas bottle (10), pressure gauge (7), the stop valve of giving vent to anger (11), blow-down pipe (12) and vent stop valve (13);
Air inlet stop valve (1) is connected with pressure maintaining valve (4) one end by Valve joint, the other end of pressure maintaining valve (4) is connected with one end of gas bottle (10) by pipeline, the other end of gas bottle (10) is connected with vent stop valve (13), vent stop valve (13) is provided with the Valve joint (14) for detection of valve, gas bottle (10) is provided with pressure gauge (7) and the stop valve of giving vent to anger (11), and the stop valve of giving vent to anger (11) is connected with blow-down pipe (12).
2. liquefied natural gas bottle according to claim 1 valve detection device, is characterized in that: described pressure gauge (7) is connected with a high-precision pressure gauge (9) by a stop valve for pressure gauge (8).
3. liquefied natural gas bottle according to claim 1 and 2 valve detection device, is characterized in that: described pressure maintaining valve (4) is connected with described gas bottle (10) with metallic hose (6) by kink joint (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420077073.6U CN203731083U (en) | 2014-02-21 | 2014-02-21 | Valve detecting device for liquefied natural gas cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420077073.6U CN203731083U (en) | 2014-02-21 | 2014-02-21 | Valve detecting device for liquefied natural gas cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203731083U true CN203731083U (en) | 2014-07-23 |
Family
ID=51201158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420077073.6U Expired - Fee Related CN203731083U (en) | 2014-02-21 | 2014-02-21 | Valve detecting device for liquefied natural gas cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203731083U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105987810A (en) * | 2015-02-13 | 2016-10-05 | 鞍钢股份有限公司 | Method for detecting fault occurrence of solenoid valve of nitrogen tank |
-
2014
- 2014-02-21 CN CN201420077073.6U patent/CN203731083U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105987810A (en) * | 2015-02-13 | 2016-10-05 | 鞍钢股份有限公司 | Method for detecting fault occurrence of solenoid valve of nitrogen tank |
| CN105987810B (en) * | 2015-02-13 | 2019-03-26 | 鞍钢股份有限公司 | A method of whether detection nitrogen pressure tank solenoid valve breaks down |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140723 Termination date: 20180221 |