CN204493824U - A kind of safety valve - Google Patents
A kind of safety valve Download PDFInfo
- Publication number
- CN204493824U CN204493824U CN201520169305.5U CN201520169305U CN204493824U CN 204493824 U CN204493824 U CN 204493824U CN 201520169305 U CN201520169305 U CN 201520169305U CN 204493824 U CN204493824 U CN 204493824U
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- China
- Prior art keywords
- valve
- valve seat
- valve body
- hole
- safety
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- Withdrawn - After Issue
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Abstract
The utility model discloses a kind of safety valve, comprise valve seat (1), valve body (2), connecting plate (3) and valve casing (4), valve seat (1) is tubular structure, the first through hole (5) is provided with in the middle part of it, valve body (2) is solid construction, the second through hole (6) is provided with in the middle part of it, it is inner that valve body (2) is plugged on valve seat (1), valve seat (1) two ends are symmetrically arranged with spring (7), and valve seat (1) is fixed in valve casing (4) by connecting plate (3).When the utility model utilizes fluid generation leakage accident, the hydraulic pressure official post valve body that safety valve two ends produce slides in valve seat, cuts off the flowing of fluid; play the effect of safety protection, have simple and compact for structure, easy to assembly; long service life, easy-maintaining is changed, the advantage that cost of production is low.
Description
Technical field
The utility model relates to a kind of safety valve, and particularly a kind of emergency closure type safety valve, belongs to safety valve technical field.
Background technique
Safety valve is widely used in the fields such as generating, oil refining, chemical industry apparatus and instrument and apparatus, is especially widely used in liquid conducting pipes.When pipeline burst or equipment break down cause fluid leakage time, safety valve can automatic-closing valve, cut off the flowing of fluid, flow out in a large number to prevent inflammable and explosive or poisonous and hazardous fluid, reduce the infringement to the health of people and the pollution to physical environment, reduce the loss of enterprise simultaneously and reduce the waste of resource.
Existing safety valve structure is more complicated, is not easy to mass production manufacture, and assembling is more inconvenient, and higher to the requirement of installation precision, meanwhile, working life is shorter, often need safeguard, overhauls and change, and cost of production and user cost are all higher.
Model utility content
The purpose of this utility model is; a kind of safety valve is provided; by being slidably matched of valve body and valve seat; the flowing in time, automatically cutting off fluid when leaking can be there is at fluid; this safety valve structure is simply compact, easy to assembly, can be serially connected in production or conveyance conduit; easy-maintaining is changed, and is suitable for large-scale production manufacture.
The technical solution of the utility model: a kind of safety valve, comprise valve seat, valve body, connecting plate and valve casing, valve seat is tubular structure, the first through hole is provided with in the middle part of it, valve body is solid construction, is provided with the second through hole in the middle part of it, and valve body is plugged on valve seat inside, valve seat two ends are symmetrically arranged with spring, and valve seat is fixed in valve casing by connecting plate.When there is fluid leakage, safety valve two ends hydraulic difference is comparatively large, and valve body is slided in valve seat, and the first through hole and the second through hole stagger, thus cuts off the flowing of fluid; After leakage accident is got rid of, valve body gets back to equilibrium position under the action of the spring, and the first through hole is communicated with the second through hole, fluid proper flow.
In aforesaid this safety valve, valve outer wall and valve base inner wall are fitted, and valve body height is less than valve seat height.Valve outer wall and valve base inner wall are directly fitted, and make to be realized sealing between valve body and valve seat separately by miscellaneous part, simplify the overall structure of safety valve.
In aforesaid this safety valve, valve seat two ends inwall is symmetrically arranged with block.Block defines the sliding scale of valve body, and protection spring is not damaged when safety valve two ends hydraulic difference is excessive.
In aforesaid this safety valve, valve base inner wall is provided with slide rail, body wall is provided with slideway, slide rail and slideway adaptation.The design of slide rail and slideway makes the slip of valve body in valve seat more steady, makes the work of whole safety valve sensitiveer.
In aforesaid this safety valve, valve seat is square tubular structure, and valve body is rectangular structure.Square structure makes the relative position of the first through hole and the second through hole more stable, thus makes the work of whole safety valve more reliable.
In aforesaid this safety valve, the first through hole is identical with the second through-hole aperture.
In aforesaid this safety valve, connecting plate comprises shut and fixed plate, and shut is arranged on fixed plate two ends, and closed at both ends plate is separately positioned on the both sides of fixed plate, and shut is semicircular plate.Shut is arranged on the left and right sides at the upper and lower two ends of fixed plate, and after valve seat and valve casing are coupled together by connecting plate, safety valve two ends can only be communicated with the second through hole by the first through hole, thus play the effect of tripping protection when fluid leakage.
In aforesaid this safety valve, valve casing comprises housing and flange, and flange is arranged on housing two ends.The design of flange facilitates the installation of safety valve.
In aforesaid this safety valve, valve body two ends are provided with groove.The design of groove makes spring more stable relative to the position of valve body, improves the stability that valve body slides in valve seat.
Compared with prior art, when the utility model utilizes fluid generation leakage accident, under the effect of the hydraulic difference produced at safety valve two ends, valve body valve seat of fitting slides therein, the relative misalignment of the first through hole and the second through hole, thus reaches the object cutting off the fluid circulation of safety valve two ends, after accident is got rid of, under the action of the spring, valve body gets back to equilibrium position, fluid recovers flowing, whole apparatus structure is simple, and working stability is easy to assembly, and cost is lower, be applicable to promoting the use of.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model;
Fig. 2 is the structural representation of valve body;
Fig. 3 is the partial sectional view of valve body, valve seat and spring assembling;
Fig. 4 is the structural representation of connecting plate.
Being labeled as in accompanying drawing: 1-valve seat, 2-valve body, 3-connecting plate, 4-valve casing, 5-first through hole, 6-second through hole, 7-spring, 8-shut, 9-fixed plate, 10-housing, 11-flange, 12-block, 13-slide rail, 14-slideway, 15-groove.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
Embodiment 1 of the present utility model: a kind of safety valve, comprise valve seat 1, valve body 2, connecting plate 3 and valve casing 4, valve seat 1 is tubular structure, the first through hole 5 is provided with in the middle part of it, namely the first through hole 5 is arranged on the geometrical center of valve seat 1, valve body 2 is solid construction, the second through hole 6 is provided with in the middle part of it, namely the second through hole 6 is arranged on the geometrical center of valve body 2, it is inner that valve body 2 is plugged on valve seat 1, valve seat 1 two ends are symmetrically arranged with spring 7, spring 7 can be fixed on valve seat 1 with pin, valve body 2 is positioned at the central position of valve seat 1 under the effect of spring 7, first through hole 5 overlaps with the center line of the second through hole 6, now namely valve body 2 is in equilibrium position, valve seat 1 is fixed in valve casing 4 by connecting plate 3, namely the outward edge of connecting plate 3 and valve casing 4 weld together, inward flange and the valve seat 1 of connecting plate 3 weld together.
Especially, valve body 2 outer wall and valve seat 1 inwall are fitted, airtight between valve body 2 and valve seat 1, and valve body 2 is highly less than valve seat 1 height, and valve body 2 has the space slided up and down in valve seat 1.
Particularly, valve seat 1 two ends inwall is symmetrically arranged with block 12, the distance between block 12 equals or the length of being a bit larger tham valve body 2 adds the diameter sum of the first through hole 5 and the second through hole 6.
Advantageously, valve seat 1 inwall is provided with slide rail 13, valve body 2 sidewall is provided with slideway 14, slide rail 13 is adaptive with slideway 14.Slide rail 13 is avoided the first through hole 5 and is arranged on the inwall of valve seat 1 both sides, and slideway 14 is avoided the second through hole 6 and is arranged on valve body 2 two side.
Further, valve seat 1 is square tubular structure, and valve body 2 is rectangular structure, and the first through hole 5 and the second through hole 6 centerline parallel are arranged, and square structure ensure that the stability of holes opposite direction.
Further, the first through hole 5 is identical with the second through hole 6 aperture.
Wherein, connecting plate 3 comprises shut 8 and fixed plate 9, and shut 8 is arranged on fixed plate 9 two ends, and closed at both ends plate 8 is separately positioned on the both sides of fixed plate 9, and namely two shuts 8 are separately positioned on the left and right sides at fixed plate about 9 two ends, and shut 8 is semicircular plate.
Further, valve casing 4 comprises housing 10 and flange 11, and flange 11 is arranged on housing about 10 two ends.
In addition, valve body 2 two ends are provided with groove 15.Groove 15 is arranged on valve body 2 liang of bottom center positions, and groove 15 diameter equals or is a bit larger tham spring 7 cross section external diameter.
Embodiment 2 of the present utility model: a kind of safety valve, comprise valve seat 1, valve body 2, connecting plate 3 and valve casing 4, valve seat 1 is tubular structure, the first through hole 5 is provided with in the middle part of it, namely the first through hole 5 is arranged on the geometrical center of valve seat 1, valve body 2 is solid construction, the second through hole 6 is provided with in the middle part of it, namely the second through hole 6 is arranged on the geometrical center of valve body 2, it is inner that valve body 2 is plugged on valve seat 1, valve seat 1 two ends are symmetrically arranged with spring 7, spring 7 can be fixed on valve seat 1 with pin, valve body 2 is positioned at the central position of valve seat 1 under the effect of spring 7, first through hole 5 overlaps with the center line of the second through hole 6, now namely valve body 2 is in equilibrium position, valve seat 1 is fixed in valve casing 4 by connecting plate 3, namely the outward edge of connecting plate 3 and valve casing 4 weld together, inward flange and the valve seat 1 of connecting plate 3 weld together.
Especially, valve body 2 outer wall and valve seat 1 inwall are fitted, airtight between valve body 2 and valve seat 1, and valve body 2 is highly less than valve seat 1 height, and valve body 2 has the space slided up and down in valve seat 1.
Particularly, valve seat 1 two ends inwall is symmetrically arranged with block 12, the distance between block 12 equals or the length of being a bit larger tham valve body 2 adds the diameter sum of the first through hole 5 and the second through hole 6.
Further, valve seat 1 is square tubular structure, and valve body 2 is rectangular structure, and the first through hole 5 and the second through hole 6 centerline parallel are arranged, and square structure ensure that the stability of holes opposite direction.
Wherein, connecting plate 3 comprises shut 8 and fixed plate 9, and shut 8 is arranged on fixed plate 9 two ends, and closed at both ends plate 8 is separately positioned on the both sides of fixed plate 9, and namely two shuts 8 are separately positioned on the left and right sides at fixed plate about 9 two ends, and shut 8 is semicircular plate.
Embodiment 3 of the present utility model: a kind of safety valve, comprise valve seat 1, valve body 2, connecting plate 3 and valve casing 4, valve seat 1 is tubular structure, the first through hole 5 is provided with in the middle part of it, namely the first through hole 5 is arranged on the geometrical center of valve seat 1, valve body 2 is solid construction, the second through hole 6 is provided with in the middle part of it, namely the second through hole 6 is arranged on the geometrical center of valve body 2, it is inner that valve body 2 is plugged on valve seat 1, valve seat 1 two ends are symmetrically arranged with spring 7, spring 7 can be fixed on valve seat 1 with pin, valve body 2 is positioned at the central position of valve seat 1 under the effect of spring 7, first through hole 5 overlaps with the center line of the second through hole 6, now namely valve body 2 is in equilibrium position, valve seat 1 is fixed in valve casing 4 by connecting plate 3, namely the outward edge of connecting plate 3 and valve casing 4 weld together, inward flange and the valve seat 1 of connecting plate 3 weld together.
Especially, valve body 2 outer wall and valve seat 1 inwall are fitted, airtight between valve body 2 and valve seat 1, and valve body 2 is highly less than valve seat 1 height, and valve body 2 has the space slided up and down in valve seat 1.
Using method of the present utility model: safety valve is connected on fluid line, during normal work, be normal flow rate by the fluid flow of safety valve, safety valve two ends hydraulic difference is less, valve body 2 is under the effect of spring 7, generally within equilibrium position, fluid circulates through the first through hole 5 and the second through hole 6; When there is fluid leakage accident, safety valve two ends hydraulic difference is excessive, and valve body 2 departs from equilibrium position comparatively far under pressure, and namely the first through hole 5 and the second through hole 6 stagger, and valve body 2 withstands on block 12, thus cuts off fluid circulation, reaches the object of safety protection; After leakage accident is got rid of, safety valve two ends hydraulic difference recovers normal, and valve body 2 substantially gets back to equilibrium position under the promotion of spring 7, and the first through hole 5 is communicated with the second through hole 6, and fluid normally circulates.
Claims (9)
1. a safety valve, comprise valve seat (1), valve body (2), connecting plate (3) and valve casing (4), it is characterized in that: valve seat (1) is tubular structure, the first through hole (5) is provided with in the middle part of it, valve body (2) is solid construction, the second through hole (6) is provided with in the middle part of it, it is inner that valve body (2) is plugged on valve seat (1), valve seat (1) two ends are symmetrically arranged with spring (7), and valve seat (1) is fixed in valve casing (4) by connecting plate (3).
2. a kind of safety valve according to claim 1, is characterized in that: valve body (2) outer wall and valve seat (1) inwall are fitted, and valve body (2) is highly less than valve seat (1) highly.
3. a kind of safety valve according to claim 1, is characterized in that: valve seat (1) two ends inwall is symmetrically arranged with block (12).
4. a kind of safety valve according to claim 1, it is characterized in that: valve seat (1) inwall is provided with slide rail (13), valve body (2) sidewall is provided with slideway (14), slide rail (13) is adaptive with slideway (14).
5. a kind of safety valve according to claim 1, is characterized in that: valve seat (1) is square tubular structure, and valve body (2) is rectangular structure.
6. a kind of safety valve according to claim 1, is characterized in that: the first through hole (5) is identical with the second through hole (6) aperture.
7. a kind of safety valve according to claim 1, it is characterized in that: connecting plate (3) comprises shut (8) and fixed plate (9), shut (8) is arranged on fixed plate (9) two ends, closed at both ends plate (8) is separately positioned on the both sides of fixed plate (9), and shut (8) is semicircular plate.
8. a kind of safety valve according to claim 1, is characterized in that: valve casing (4) comprises housing (10) and flange (11), and flange (11) is arranged on housing (10) two ends.
9. a kind of safety valve according to claim 1, is characterized in that: valve body (2) two ends are provided with groove (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520169305.5U CN204493824U (en) | 2015-03-24 | 2015-03-24 | A kind of safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520169305.5U CN204493824U (en) | 2015-03-24 | 2015-03-24 | A kind of safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204493824U true CN204493824U (en) | 2015-07-22 |
Family
ID=53573143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520169305.5U Withdrawn - After Issue CN204493824U (en) | 2015-03-24 | 2015-03-24 | A kind of safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204493824U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104712801A (en) * | 2015-03-24 | 2015-06-17 | 东北大学 | Safety valve |
-
2015
- 2015-03-24 CN CN201520169305.5U patent/CN204493824U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104712801A (en) * | 2015-03-24 | 2015-06-17 | 东北大学 | Safety valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150722 Effective date of abandoning: 20170620 |