CN204922172U - Antivibration, protecting against shock type low temperature quick action emergency valve - Google Patents
Antivibration, protecting against shock type low temperature quick action emergency valve Download PDFInfo
- Publication number
- CN204922172U CN204922172U CN201520727673.7U CN201520727673U CN204922172U CN 204922172 U CN204922172 U CN 204922172U CN 201520727673 U CN201520727673 U CN 201520727673U CN 204922172 U CN204922172 U CN 204922172U
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- Prior art keywords
- valve
- cylinder
- low temperature
- piston
- protecting against
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- Expired - Fee Related
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- 230000035939 shock Effects 0.000 title claims abstract description 16
- 230000005540 biological transmission Effects 0.000 claims description 10
- 239000000945 filler Substances 0.000 claims description 9
- 210000004907 gland Anatomy 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 239000000428 dust Substances 0.000 claims description 4
- 239000007789 gas Substances 0.000 description 6
- 238000012360 testing method Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000001307 helium Substances 0.000 description 2
- 229910052734 helium Inorganic materials 0.000 description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 2
- 239000003915 liquefied petroleum gas Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical group C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 238000009863 impact test Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Details Of Valves (AREA)
Abstract
The utility model relates to an antivibration, protecting against shock type low temperature quick action emergency valve, including valve body (1), valve rod (2), valve gap (3), valve top (4), cylinder (5) and piston (8), the top in valve body (1) is fixed through many bolt A (11) to the lower extreme of valve gap (3), the lower extreme end fixing of valve rod (2) has valve top (4), valve top (4) and disk seat (6) cooperation, the lower extreme of cylinder (5) and the upper end fixed connection of valve gap (3), piston (8) are installed to cylinder (5) fit in, the upper end of valve rod (2) and the lower terminal surface fixed connection of piston (8), cylinder (5) have cylinder head (7) through a plurality of bolt B (22) fixed mounting, be provided with between the up end of piston (8) and cylinder head (7) inboard top surface spring (18). The utility model has the advantages of: be applicable to railway operating mode transportation, antivibration, protecting against shock performance are good, work is steady reliably, the security is high, be applicable to low temperature environment and observe the convenience.
Description
Technical field
The utility model relates to a kind of low temperature valve, particularly vibrationproof, protecting against shock type low temperature Emergeny Cutoff Valves.
Background technique
Emergeny Cutoff Valves is called safety cut-off valve again, refers to when running into emergency case, and valve can close rapidly or open, and avoids the generation caused the accident.Emergeny Cutoff Valves has splendid technical performance, low-load loss and high reliability.Be applicable to the inflammable gass such as coal gas, rock gas and liquefied petroleum gas (LPG), be widely used in the safety installations of gas transmission pipeline net work system, gas thermal energy factory floor, pipeline for gas and house shelter.
Chinese patent 200920257243.8 discloses pneumatic rapid cut-off valve, comprises selector valve, cylinder and stop valve, when abnormal urgency appears in pipeline, is controlled the motion of piston in cylinder, make stop valve fast shut-off, protective system and device security by selector valve.But, under stop valve full-gear, if when selector valve control system breaks down or power failure or downstream pipe pressure sharply rise and medium refluence occurs suddenly, cannot cut off pipeline, and lose the protective action to system and equipment, working stability is poor.
Emergeny Cutoff Valves at low ambient temperatures, such as cryogenic tank, tank car and tank car cuts off circulation medium, can cut off medium in time when breaking down, and is widely used in LNG, liquid ethylene and other cryogenic media.When temperature is too high, there is the hidden danger of burning, blast, need emergency cut-off valve, if piston cylinder cannot normally pressure release, valve cannot be closed, and there is larger potential safety hazard.
In addition, the low temperature Emergeny Cutoff Valves used in railway transport, such as; the tank body transport of railway liquid nitrogen; as everyone knows, railway transport usually there will be vibration and impacts, and the equal demand fulfillment of equipment be arranged on rail transportations vibrates, impact test requirement.
Model utility content
The purpose of this utility model is the shortcoming overcoming prior art, provides a kind of vibrationproof, the protecting against shock type low temperature Emergeny Cutoff Valves that are applicable to railway operating mode.
The purpose of this utility model is achieved through the following technical solutions: vibrationproof, protecting against shock type low temperature Emergeny Cutoff Valves, comprise valve body, valve rod, valve gap, valve top, cylinder and piston, valve body is provided with medium inlet and media outlet in the horizontal direction, valve inner between medium inlet and media outlet is provided with valve seat, the lower end of valve gap is fixed on the top of valve body by many bolt A, the lower end of valve rod is through valve gap, and stretch into the inside of valve body, the lower end of valve rod is fixed with valve top, valve top coordinates with valve seat, the lower end of cylinder is fixedly connected with the upper end of valve gap, the inside of cylinder is stretched in the upper end of valve rod, be slidably installed in cylinder piston, the upper end of valve rod is fixedly connected with the lower end surface of piston, cylinder is installed with cylinder head by multiple bolt B, spring is provided with between end face inside the upper-end surface of piston and cylinder head.
Every bolt A offers respectively radial hole, steel wire is successively through the hole on every bolt A, and two ends link together.
Every bolt B offers respectively radial hole, steel wire is successively through the hole in every bolt B, and two ends link together.
Also be filled with filler between described valve gap upper end madial wall and valve rod, valve rod is set with Gland, the lower end surface of Gland is pressed on filler, and Gland is connected by screw-thread fit with valve gap upper end madial wall.
The top of described piston is also coaxially installed with manual shaft by bearing, the lower end of manual shaft is set with Manual cap pressing nut, Manual cap pressing nut is connected by screw-thread fit with piston, the middle part of manual shaft is outside thread, described cylinder head top center is fixed with transmission nut, transmission nut coordinates with the outside thread of manual shaft, and the upper end of manual shaft is fixed with handwheel.
Dust cover is set with outside described transmission nut.
The bottom of described cylinder respectively circumference is provided with four hexagon socket cap head screws and four interior hexagonals cone end Cock screws, and hexagon socket cap head screw and interior hexagonal cone end Cock screw are all pressed on the outer side wall of valve gap upper end.
The top of described valve rod is fixed with pointer, and the bottom of cylinder is fixed with stroke direction board, during valve closing, and the zero-bit groove of pointed stroke direction board.
The utility model has the following advantages:
1, cylinder interior arranges piston mechanism, arranges spring between piston and cylinder head, operates steadily reliable.
2, cut-off valve is primarily of the keying of pneumatic control valve, and when normally providing driving source of the gas to valve, the manual operating device opening/shutting valve of using valves, does not affect the normal work of whole system, improves the Security of valve further.
3, on valve rod, be provided with pointer, pointer moves up and down along with valve rod, indicates the aperture situation of valve, and reflects its concrete aperture by the aperture graduation line be arranged on cylinder, and it is convenient to observe, intuitively.
4, the bolt for connecting locking all has hole, and steel wire is successively through each hole, and the connection and two ends are strained and fixed, can prevent bolt looseness in vibration and impact process.
5, the bottom of cylinder respectively circumference be provided with four hexagon socket cap head screws and four interior hexagonals cone end Cock screws, prevent from looseningly in vibration and impact process causing valve leak.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
In figure: 1-valve body, 2-valve rod, 3-valve gap, 4-valve top, 5-cylinder, 6-valve seat, 7-cylinder head, 8-piston, 9-manual shaft, 10-handwheel, 11-bolt A, 12-filler, 13-Gland, 14-hexagon socket cap head screw, hexagonal cone end Cock screw in 15-, 16-pointer, 17-stroke direction board, 18-spring, 19-Manual cap pressing nut, 20-transmission nut, 21-dust cover, 22-bolt B.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described, but protection domain of the present utility model is not limited to the following stated.
As shown in Figure 1, vibrationproof, protecting against shock type low temperature Emergeny Cutoff Valves, comprise valve body 1, valve rod 2, valve gap 3, valve top 4, cylinder 5 and piston 8, valve body 1 is provided with medium inlet and media outlet in the horizontal direction, valve body 1 inside between medium inlet and media outlet is provided with valve seat 6, the lower end of valve gap 3 is fixed on the top of valve body 1 by many bolt A11, the lower end of valve rod 2 is through valve gap 3, and stretch into the inside of valve body 1, the lower end of valve rod 2 is fixed with valve top 4, valve top 4 coordinates with valve seat 6, the lower end of cylinder 5 is fixedly connected with the upper end of valve gap 3, the inside of cylinder 5 is stretched in the upper end of valve rod 2, be slidably installed in cylinder 5 piston 8, the upper end of valve rod 2 is fixedly connected with the lower end surface of piston 8, cylinder 5 is installed with cylinder head 7 by multiple bolt B 22, spring 18 is provided with between end face inside the upper-end surface of piston 8 and cylinder head 7.
Every bolt A11 offers respectively radial hole, steel wire is successively through the hole on every bolt A11, and two ends link together; Every bolt B 22 offers respectively radial hole, steel wire is successively through the hole in every bolt B 22, and two ends link together.In rail transportations running, can prevent from producing in vibrations process loosening.
Also be filled with filler 12 between described valve gap 3 upper end madial wall and valve rod 2, valve rod 2 be set with Gland 13, the lower end surface of Gland 13 is pressed on filler 12, and Gland 13 is connected by screw-thread fit with valve gap 3 upper end madial wall.
The top of described piston 8 is also coaxially installed with manual shaft 9 by bearing, the lower end of manual shaft 9 is set with Manual cap pressing nut 19, Manual cap pressing nut 19 is connected by screw-thread fit with piston 8, the middle part of manual shaft 9 is outside thread, described cylinder head 7 top center is fixed with transmission nut 20, transmission nut 20 coordinates with the outside thread of manual shaft 9, and the upper end of manual shaft 9 is fixed with handwheel 10.
Be set with dust cover 21 outside described transmission nut 20, prevent the liquid in cylinder 5 from entering bearing bore indoor.
The bottom of described cylinder 5 respectively circumference is provided with four hexagon socket cap head screws 14 and four interior hexagonals cone end Cock screws 15, and hexagon socket cap head screw 14 and interior hexagonal cone end Cock screw 15 are all pressed on the outer side wall of valve gap 3 upper end.
The top of described valve rod 2 is fixed with pointer 16, and the bottom of cylinder 5 is fixed with stroke direction board 17, and during valve closing, pointer 16 points to the zero-bit groove of stroke direction board 17.
The utility model designs by the standard basic model of " GB/T12224-05 ", " JB/T7749-95 ", CTK720-2003, manufacture, detects.Strength test: water pressure testing 2.4MPa, (respectively at valve body, valve gap trying), all stopping 5 minutes must not seepage; Air tightness test: gas testing pressure 1.6MPa, stop five minutes, separate space, sealing surface, filler place all must not seepages; Low temperature seal is tested: temperature-196 DEG C, and helium air pressure 1.6MPa, stops five minutes, and middle flange, filler place all must not seepages, and sealing face leakage rate is not more than 25ml/min; The reverse leakage test of low temperature: temperature-196 DEG C, passes into helium air pressure 0.4MPa from outlet, and stop five minutes, sealing face leakage rate is not more than 25ml/min; Assemble qualified after, nameplate stamps corresponding content with No. 3.5 words and engraves the consistent numbering of same nameplate serial number in the proper site of valve body.
Claims (8)
1. vibrationproof, protecting against shock type low temperature Emergeny Cutoff Valves, it is characterized in that: comprise valve body (1), valve rod (2), valve gap (3), valve top (4), cylinder (5) and piston (8), valve body (1) is provided with medium inlet and media outlet in the horizontal direction, valve body (1) inside between medium inlet and media outlet is provided with valve seat (6), the lower end of valve gap (3) is by many bolt A(11) be fixed on the top of valve body (1), the lower end of valve rod (2) is through valve gap (3), and stretch into the inside of valve body (1), the lower end of valve rod (2) is fixed with valve top (4), valve top (4) coordinates with valve seat (6), the lower end of cylinder (5) is fixedly connected with the upper end of valve gap (3), the inside of cylinder (5) is stretched in the upper end of valve rod (2), be slidably installed in cylinder (5) piston (8), the upper end of valve rod (2) is fixedly connected with the lower end surface of piston (8), cylinder (5) is installed with cylinder head (7) by multiple bolt B (22), spring (18) is provided with between the upper-end surface of piston (8) and cylinder head (7) inner side end face.
2. vibrationproof according to claim 1, protecting against shock type low temperature Emergeny Cutoff Valves, is characterized in that: every bolt A(11) on offer radial hole respectively, steel wire is successively through every bolt A(11) on hole, and two ends link together.
3. vibrationproof according to claim 1, protecting against shock type low temperature Emergeny Cutoff Valves, is characterized in that: every bolt B (22) offers respectively radial hole, and steel wire is successively through the hole on every bolt B (22), and two ends link together.
4. vibrationproof according to claim 1, protecting against shock type low temperature Emergeny Cutoff Valves, it is characterized in that: between described valve gap (3) upper end madial wall and valve rod (2), be also filled with filler (12), valve rod (2) is set with Gland (13), the lower end surface of Gland (13) is pressed on filler (12), and Gland (13) is connected by screw-thread fit with valve gap (3) upper end madial wall.
5. vibrationproof according to claim 1, protecting against shock type low temperature Emergeny Cutoff Valves, it is characterized in that: the top of described piston (8) is also coaxially installed with manual shaft (9) by bearing, the lower end of manual shaft (9) is set with Manual cap pressing nut (19), Manual cap pressing nut (19) is connected by screw-thread fit with piston (8), the middle part of manual shaft (9) is outside thread, described cylinder head (7) top center is fixed with transmission nut (20), transmission nut (20) coordinates with the outside thread of manual shaft (9), the upper end of manual shaft (9) is fixed with handwheel (10).
6. vibrationproof according to claim 5, protecting against shock type low temperature Emergeny Cutoff Valves, is characterized in that: described transmission nut (20) outside is set with dust cover (21).
7. vibrationproof according to claim 1, protecting against shock type low temperature Emergeny Cutoff Valves, it is characterized in that: the bottom of described cylinder (5) respectively circumference is provided with four hexagon socket cap head screws (14) and four interior hexagonals cone end Cock screw (15), and hexagon socket cap head screw (14) and interior hexagonal cone hold Cock screw (15) to be all pressed on the outer side wall of valve gap (3) upper end.
8. vibrationproof according to claim 1, protecting against shock type low temperature Emergeny Cutoff Valves, it is characterized in that: the top of described valve rod (2) is fixed with pointer (16), the bottom of cylinder (5) is fixed with stroke direction board (17), during valve closing, pointer (16) points to the zero-bit groove of stroke direction board (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520727673.7U CN204922172U (en) | 2015-09-18 | 2015-09-18 | Antivibration, protecting against shock type low temperature quick action emergency valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520727673.7U CN204922172U (en) | 2015-09-18 | 2015-09-18 | Antivibration, protecting against shock type low temperature quick action emergency valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204922172U true CN204922172U (en) | 2015-12-30 |
Family
ID=54971299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520727673.7U Expired - Fee Related CN204922172U (en) | 2015-09-18 | 2015-09-18 | Antivibration, protecting against shock type low temperature quick action emergency valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204922172U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107575585A (en) * | 2017-10-25 | 2018-01-12 | 孙业国 | A kind of bottom valve of latex tank |
| CN112815128A (en) * | 2020-12-30 | 2021-05-18 | 东方电气集团东方汽轮机有限公司 | Integrated main steam regulating valve and regulating device |
-
2015
- 2015-09-18 CN CN201520727673.7U patent/CN204922172U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107575585A (en) * | 2017-10-25 | 2018-01-12 | 孙业国 | A kind of bottom valve of latex tank |
| CN107575585B (en) * | 2017-10-25 | 2024-05-24 | 孙业国 | Tank bottom valve of emulsion tank |
| CN112815128A (en) * | 2020-12-30 | 2021-05-18 | 东方电气集团东方汽轮机有限公司 | Integrated main steam regulating valve and regulating device |
| CN112815128B (en) * | 2020-12-30 | 2022-05-10 | 东方电气集团东方汽轮机有限公司 | Integrated main steam regulating valve and regulating device |
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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 |
Granted publication date: 20151230 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |