CN206958356U - The automobile-used cryogenic insulated cylinder safety device control valves of LNG - Google Patents
The automobile-used cryogenic insulated cylinder safety device control valves of LNG Download PDFInfo
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- CN206958356U CN206958356U CN201720448116.0U CN201720448116U CN206958356U CN 206958356 U CN206958356 U CN 206958356U CN 201720448116 U CN201720448116 U CN 201720448116U CN 206958356 U CN206958356 U CN 206958356U
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- bonnet
- valve
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- control valves
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Abstract
It the utility model is related to the automobile-used cryogenic insulated cylinder safety device control valves of LNG, valve body is connected through a screw thread bonnet, and it is provided with relief valve connection, pressure gauge connection and air pipe interface, bonnet is by thread bush on valve rod, and Switch seals are fixed in one end inwardly of valve rod, and handwheel is fixed in one end outwardly, pressure gauge connection turns on the side of bonnet, and is turned on by turning on chamber with Switch seals；The side of the outer ring of bonnet inwardly is sealed by the first airtight and watertight padding, is sealed in the middle part of outer ring by valve bonnet seal pad, the side of outer ring outwardly is sealed by the second airtight and watertight padding；Second airtight and watertight padding is compressed by clamp nut；Valve rod rotates, and when Switch seals touch relief valve connection, closes relief valve connection, and valve rod rotates, when Switch seals touch conducting chamber, confining pressure table interface.The utility model security is good, and installation and replacing are convenient, and the used time is few, and workload is few.
Description
Technical field
Valve technology field is the utility model is related to, particularly a kind of security is good, and installation and replacing are convenient, and the used time is few, work
The automobile-used cryogenic insulated cylinder safety device control valves of the few LNG of work amount.
Background technology
LNG is liquefied natural gas English Liquefied Natural Gas abbreviation.Purified processing (the removing of natural gas
The impurity such as carbon dioxide, sulfide, heavy hydrocarbon, water) after, deep cooling becomes liquid by gaseous state, referred to as liquefied to -162 DEG C at ambient pressure
Natural gas, the volume of liquefied natural gas are about the 1/620 of the natural gas volume of phase homogenous quantities, and weight is about the 45% of androgynous ponding
Left and right.
Safety valve is that opening and closing element is in normally off under by external force effect, when the pressure medium rise in equipment or pipeline is super
When crossing setting, by outside system discharge medium prevent the pressure medium in pipeline or equipment from exceeding the particular usage valve of specified value
Door.Safety valve belongs to automatic valve class, is mainly used in boiler, on pressure vessels and pipes, control pressure is no more than setting, to people
Body safety and equipment have run important protective effect.
In the prior art, after tracheae connects threeway, turned on respectively with safety valve and pressure gauge, this kind of connected mode is replacing peace
When full valve or pressure gauge, the gas in resistance to air bottle need to all be discharged, cause to waste by tracheae.It is also required to during installation
Ensure there is no gas in resistance to air bottle, made troubles to installation safety valve and pressure gauge.For the automobile-used cryogenic insulated cylinders of LNG,
Installation or replacing bring potential safety hazard, and increase workload, improve cost.Need a kind of security good, installation and replacing are convenient,
Used time is few, the automobile-used cryogenic insulated cylinder safety device control valves of the few LNG of workload.
Utility model content
It is good that the purpose of this utility model is to provide a kind of security, installation and changes convenient, and the used time is few, and workload is few
The automobile-used cryogenic insulated cylinder safety device control valves of LNG.
The automobile-used cryogenic insulated cylinder safety device control valves of LNG, including：
Valve body, the valve body is connected through a screw thread bonnet, and is provided with relief valve connection, pressure gauge connection and air pipe interface,
The bonnet is by thread bush on valve rod, and Switch seals are fixed in one end inwardly of the valve rod, and handwheel is fixed in one end outwardly,
The side of the pressure gauge connection conducting bonnet, and turned on by turning on chamber with Switch seals；
The side of the outer ring of the bonnet inwardly is sealed by the first airtight and watertight padding, close by valve bonnet seal pad in the middle part of outer ring
Envelope, the side of outer ring outwardly is sealed by the second airtight and watertight padding；Second airtight and watertight padding is compressed by clamp nut；
The valve rod rotates, and when Switch seals touch relief valve connection, closes relief valve connection, the valve rod turns
It is dynamic, when Switch seals touch conducting chamber, confining pressure table interface.
The limiting card longitudinal direction is strip, and section has the neck of clamping valve rod.
The surface of the Switch seals is provided with side cushion.
The outside of the Switch seals does not contact the inwall of valve body.
The handwheel is cylinder, and center is fixed on valve rod.
The valve body has four interfaces, and level is provided with two, shifts to install two up and down.
The outer ring side of the bonnet is provided with screw thread, central raised, and opposite side inner end is provided with screw thread, and outer end is provided with and led
General through hole, the inner side of the bonnet correspond to through hole and set conducting chamber, and middle part is provided with screw thread, and side outwardly is provided with placement
The groove of second airtight and watertight padding.
The utility model valve body is connected through a screw thread bonnet, and is provided with relief valve connection, pressure gauge connection and air pipe interface,
Bonnet is by thread bush on valve rod, and Switch seals are fixed in one end inwardly of valve rod, and handwheel is fixed in one end outwardly, and pressure gauge connects
The side of mouth conducting bonnet, and turned on by turning on chamber with Switch seals；The side of the outer ring of bonnet inwardly is close by first
Packing seal is sealed, is sealed in the middle part of outer ring by valve bonnet seal pad, the side of outer ring outwardly is sealed by the second airtight and watertight padding；Second
Airtight and watertight padding is compressed by clamp nut；Valve rod rotates, and when Switch seals touch relief valve connection, closes relief valve connection,
Valve rod rotates, when Switch seals touch conducting chamber, confining pressure table interface.Handwheel is rotated, band ovable valve stem is rotated, and promotion is opened
It is linear motion that seal, which is closed, by convert rotational motion, in valve body and bonnet internal motion, realizes three kinds of works of Switch seals
Position state.First, relief valve connection 11 and pressure gauge connection 12 are all conducting state, and safety valve 21 and pressure gauge 22 are all in work
State；2nd, the closed state of pressure gauge connection 12, Switch seals 5 are close to the conduction position of pressure gauge connection 12；3rd, safety valve
The closed state of interface 11, Switch seals 5 are close to the conduction position of relief valve connection 11.The utility model security is good, installation
Convenient with changing, the used time is few, and workload is few.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the sectional view of the utility model limiting card；
Fig. 3 is annexation figure of the present utility model；
Fig. 4 is safety valve, pressure gauge, tracheae and the annexation figure of threeway in the prior art；
In figure：1st, valve body, 2, bonnet, 3, clamp nut, 4, valve rod, 5, Switch seals, 6, handwheel, the 7, first sealing is filled out
Material, 8, valve bonnet seal pad, the 9, second airtight and watertight padding, 10, limiting card, 11, relief valve connection, 12, pressure gauge connection, 13, tracheae
Interface, 21, safety valve, 22, pressure gauge, 23, tracheae, 24, threeway.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
Embodiment 1：
The automobile-used cryogenic insulated cylinder safety device control valves of LNG, including：Valve body 1, valve body 1 are connected through a screw thread bonnet 2,
And be provided with relief valve connection 11, pressure gauge connection 12 and air pipe interface 13, bonnet 2 by thread bush on valve rod 4, valve rod 4
Switch seals 5 are fixed in one end inwardly, and handwheel 6 is fixed in one end outwardly, and pressure gauge connection 12 turns on the side of bonnet 2, and passes through
Conducting chamber turns on Switch seals 5；The side of the outer ring of bonnet 2 inwardly is sealed by the first airtight and watertight padding 7, logical in the middle part of outer ring
Cross valve bonnet seal pad 8 to seal, the side of outer ring outwardly is sealed by the second airtight and watertight padding 9；Second airtight and watertight padding 9 is by clamp nut
3 compress；Valve rod 4 rotates, and when Switch seals 5 touch relief valve connection 11, closes relief valve connection 11, valve rod 4 is rotated, opened
When pass seal 5 touches conducting chamber, confining pressure table interface 12.
The longitudinal direction of limiting card 10 is strip, and section has the neck of clamping valve rod 4.The surface of Switch seals 5 is provided with side
Cushion.The outside of Switch seals 5 does not contact the inwall of valve body 1.Handwheel 6 is cylinder, and center is fixed on valve rod 4.Valve
Body 1 has four interfaces, and level is provided with two, shifts to install two up and down.The outer ring side of bonnet 2 is provided with screw thread, central raised,
Opposite side inner end is provided with screw thread, and outer end is provided with the through hole of conducting, and the inner side of bonnet 2 corresponds to through hole and sets conducting chamber,
Middle part is provided with screw thread, and side outwardly is provided with the groove for placing the second airtight and watertight padding.
In the prior art, after tracheae 23 connects threeway 24, turned on respectively with safety valve 21 and pressure gauge 22, this kind of connected mode
When replacing, installing safety valve 21 or pressure gauge 22, the gas in resistance to air bottle need to all be discharged by tracheae 23.
The utility model has three kinds of work condition states, the first：Normal operating condition, relief valve connection 11 and pressure gauge connect
Mouth 12 is all that conducting state, safety valve 21 and pressure gauge 22 are located at medium position all in working condition, Switch seals 5；The
Two kinds：The closed state of pressure gauge connection 12, Switch seals 5 are close to the conducting of the conduction position of pressure gauge connection 12, i.e. bonnet 2
Chamber is switched on and off the inner seal of seal 5, and relief valve connection 11 is in the conduction state, also to the pressure gauge at pressure gauge connection 12
22 change or install；The third：The closed state of relief valve connection 11, Switch seals 5 are close to the conducting position of relief valve connection 11
Put, i.e. medial surface of the relief valve connection 11 in valve body 1.
Handwheel 6 is rotated, band ovable valve stem 4 is rotated, and convert rotational motion is linear motion by pull switch seal 5, in valve
Body 1 and the internal motion of bonnet 2, realize three kinds of station states of Switch seals 5.
General principle, principal character and advantage of the present utility model has been shown and described above.The technical staff of the industry
It should be appreciated that the utility model is not restricted to the described embodiments, the simply explanation described in above-described embodiment and specification is originally
The principle of utility model, on the premise of the spirit and scope of the utility model is not departed from the utility model also have various change and
Improve, these changes and improvements are both fallen within claimed the scope of the utility model.The utility model requires protection scope by
Appended claims and its equivalent define.
Claims (7)
- The automobile-used cryogenic insulated cylinder safety device control valves of 1.LNG, it is characterised in that including：Valve body (1), the valve body (1) is connected through a screw thread bonnet (2), and is provided with relief valve connection (11), pressure gauge connection (12) and air pipe interface (13), the bonnet (2) by thread bush on valve rod (4), fix by one end inwardly of the valve rod (4) Switch seals (5), handwheel (6), the side of pressure gauge connection (12) the conducting bonnet (2) are fixed in one end outwardly, and pass through Chamber is turned on to turn on Switch seals (5)；The side of the outer ring of the bonnet (2) inwardly is sealed by the first airtight and watertight padding (7), passes through valve bonnet seal pad in the middle part of outer ring (8) seal, the side of outer ring outwardly is sealed by the second airtight and watertight padding (9)；Second airtight and watertight padding (9) is by clamp nut (3) compress；The valve rod (4) rotates, and when Switch seals (5) touch relief valve connection (11), closes relief valve connection (11), institute Valve rod (4) rotation is stated, when Switch seals (5) touch conducting chamber, confining pressure table interface (12).
- 2. the automobile-used cryogenic insulated cylinder safety device control valves of LNG according to claim 1, it is characterised in that the limit Position card (10) longitudinal direction is strip, and section has the neck of clamping valve rod (4).
- 3. the automobile-used cryogenic insulated cylinder safety device control valves of LNG according to claim 1, it is characterised in that described to open The surface for closing seal (5) is provided with side cushion.
- 4. the automobile-used cryogenic insulated cylinder safety device control valves of LNG according to claim 1, it is characterised in that described to open The outside for closing seal (5) does not contact the inwall of valve body (1).
- 5. the automobile-used cryogenic insulated cylinder safety device control valves of LNG according to claim 1, it is characterised in that the hand (6) are taken turns as cylinder, center is fixed on valve rod (4).
- 6. the automobile-used cryogenic insulated cylinder safety device control valves of LNG according to claim 1, it is characterised in that the valve Body (1) has four interfaces, and level is provided with two, shifts to install two up and down.
- 7. the automobile-used cryogenic insulated cylinder safety device control valves of LNG according to claim 1, it is characterised in that the valve The outer ring side of lid (2) is provided with screw thread, central raised, and opposite side inner end is provided with screw thread, and outer end is provided with the through hole of conducting, The inner side of the bonnet (2) corresponds to through hole and sets conducting chamber, and middle part is provided with screw thread, and side outwardly is provided with the sealing of placement second The groove of filler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720448116.0U CN206958356U (en) | 2017-04-26 | 2017-04-26 | The automobile-used cryogenic insulated cylinder safety device control valves of LNG |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720448116.0U CN206958356U (en) | 2017-04-26 | 2017-04-26 | The automobile-used cryogenic insulated cylinder safety device control valves of LNG |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206958356U true CN206958356U (en) | 2018-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720448116.0U Active CN206958356U (en) | 2017-04-26 | 2017-04-26 | The automobile-used cryogenic insulated cylinder safety device control valves of LNG |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013727A (en) * | 2017-04-26 | 2017-08-04 | 上海百图低温阀门有限公司 | The automobile-used cryogenic insulated cylinder safety device control valves of LNG |
-
2017
- 2017-04-26 CN CN201720448116.0U patent/CN206958356U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013727A (en) * | 2017-04-26 | 2017-08-04 | 上海百图低温阀门有限公司 | The automobile-used cryogenic insulated cylinder safety device control valves of LNG |
| CN107013727B (en) * | 2017-04-26 | 2023-03-10 | 上海百图低温阀门有限公司 | LNG vehicle low-temperature heat-insulation gas cylinder safety device control valve |
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