CN201896978U - Automatic shutoff multi-level explosion relief valve with springs - Google Patents
Automatic shutoff multi-level explosion relief valve with springs Download PDFInfo
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- CN201896978U CN201896978U CN2010206059735U CN201020605973U CN201896978U CN 201896978 U CN201896978 U CN 201896978U CN 2010206059735 U CN2010206059735 U CN 2010206059735U CN 201020605973 U CN201020605973 U CN 201020605973U CN 201896978 U CN201896978 U CN 201896978U
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- valve
- valve plate
- spring
- annular plane
- valve body
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Abstract
The utility model provides an automatic shutoff multi-level explosion relief valve with springs, which comprises a valve body and a bracket. A valve plate is mounted in the valve body, an annular plane is disposed at the edge of the valve plate, a sealing ring is mounted between the annular plane and the valve body, the bracket is fixedly mounted above the valve body by the aid of a screw stem and a nut, a plurality of primary spring cylinders, a plurality of secondary spring cylinders and a plurality of tertiary spring cylinders are sequentially fixedly mounted on the circumference, which corresponds to the annular plane of the valve plate, on the bracket, bottom surfaces of the primary spring cylinder directly contact with the annular plane of the valve plate, a pitch L1 from each secondary spring cylinder to the annular plane of the valve plate is larger than a pitch L2 from each tertiary spring cylinder to the annular plane of the valve plate, a plurality of guiding sleeves are further fixed on the outer side of the annular plane at the edge of the valve plate, and one end of each guiding sleeve is sleeved on the valve stem and in clearance fit with the valve stem. The automatic shutoff multi-level explosion relief valve has the advantages that the automatic shutoff multi-level explosion relief valve can realize multi-level explosion relief, the valve plate can be automatically reset and sealed under the action of the springs after explosion relief, and safety running of a system is guaranteed.
Description
Technical field
The utility model relates to a kind of valving, especially a kind of explosion-released valve that is used in metallurgy industry blast furnace gas pipeline network, converter gas recovery system.
Background technique
The explosion-released valve of metallurgy industry blast furnace gas pipeline network and converter gas recovery system use at present generally adopts the diaphragm type explosion-released valve, as long as system pressure is higher than venting of dust explosion pressure, explosion-proof diaphragm is venting of dust explosion voluntarily.Though the diaphragm type explosion-released valve has solved the too high problem of system pressure, but the diaphragm of diaphragm type explosion-released valve belongs to disposable products, pipeline medium and air communication after the explosion, be easy to generate secondary explosion, so must change diaphragm, use cumbersomely, and the explosion-released valve diaphragm is owing to material, thickness deviation, bring the inconsistent risk of venting of dust explosion pressure, using effect is not ideal.
Summary of the invention
For valve after overcoming existing diaphragm type explosion-released valve venting of dust explosion directly opens wide to atmosphere, cause ambient air to enter in the gas pipe line, there is the deficiency of secondary explosion risk, the utility model provides a kind of spring self-closing multistage explosion-released valve.
The technological scheme that its technical problem that solves the utility model adopts is the multistage explosion-released valve of a kind of spring self-closing, comprise valve body, one valve plate is housed in the valve body, there is a circular planes at the edge of valve plate, between circular planes and the valve body seal ring is housed, also has a carriage, pass through screw rod, nut is fixedly mounted on the valve body top, be installed with a plurality of one-level spring cylinders successively on the carriage with on the corresponding circumference of valve plate circular planes, two-level spring cylinder and three grades of spring cylinders, one-level spring cylinder bottom surface directly contacts with the circular planes of valve plate, the spacing of the circular planes of two-level spring cylinder and three grades of spring cylinders and valve plate is respectively L1 and L2, and L1 is greater than L2.
Spring cylinder is made of outer sleeve, inner sleeve and spring, and inner sleeve can slide in outer sleeve, between outer sleeve, the inner sleeve spring is housed, and outer sleeve is fixed on the carriage.A plurality of guide sleeves are also fixed in the circular planes outside at the edge of valve plate, and guide sleeve one end is enclosed within on the screw rod, and the two is a Spielpassung.
The beneficial effects of the utility model are can multistage venting of dust explosion, and valve plate can seal from horizontal reset under spring action behind the venting of dust explosion, guarantees system safety operation.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the tectonic maps of present embodiment
Fig. 2 is the plan view of Fig. 1
Among the figure: 1. valve body; 2. seal ring; 3. guide sleeve; 4. circular planes; 5. spring; 6. valve plate; 7. screw rod; 8. inner sleeve; 9. outer sleeve; 10. carriage; 11. one-level spring cylinder; 12. three grades of spring cylinders; 13. two-level spring cylinder.
Embodiment
As depicted in figs. 1 and 2, the multistage explosion-released valve of a kind of spring self-closing, comprise valve body 1, one valve plate 6 is housed in the valve body 1, there is a circular planes 4 at the edge of valve plate 6, between circular planes 4 and the valve body 1 seal ring 2 is housed, also has a carriage 10, carriage 10 is by screw rod 7, nut is fixedly mounted on valve body 1 top, the height and position of carriage 10 can be regulated by nut, on the carriage 10 with on the valve plate 6 circular planes 4 corresponding circumference a plurality of one-level spring cylinders 11 are housed fixedly successively, two-level spring cylinder 13 and three grades of spring cylinders 12, one-level spring cylinder 11 bottom surfaces directly contact with the circular planes 4 of valve plate 6, two-level spring cylinder 13 and three grades of spring cylinders 12 are respectively L1 and L2 with the spacing of the circular planes 4 of valve plate 6, and L1 is greater than L2.
Spring cylinder is made of outer sleeve 9, inner sleeve 8 and spring 5, and inner sleeve 8 can slide in outer sleeve 9, between outer sleeve 9, the inner sleeve 8 spring 5 is housed, and outer sleeve 9 is fixed on the carriage 10.A plurality of guide sleeves 3 are also fixed in circular planes 4 outsides at the edge of valve plate 6, and guide sleeve 3 one ends are enclosed within on the screw rod 7, and the two is a Spielpassung.
When system pressure was higher than setting venting of dust explosion pressure, the medium masterpiece was used on the valve plate 6, makes valve plate 6 back down one-level spring cylinder 11 and up moves system decompression; Unusual when high when system pressure, can back down one-level spring cylinder 11, two-level spring cylinder 13 and three grades of spring cylinders 12 successively and realize multistage ventings of dust explosion.When system pressure is lower than setting venting of dust explosion pressure, in the descending automatic recovery sealing of spring 5 effect lower valve plates.
Claims (3)
1. multistage explosion-released valve of spring self-closing, comprise valve body, it is characterized in that: a valve plate is housed in the described valve body, there is a circular planes at the edge of valve plate, between circular planes and the valve body seal ring is housed, also has a carriage, pass through screw rod, nut is fixedly mounted on the valve body top, on the carriage with on the corresponding circumference of valve plate circular planes a plurality of one-level spring cylinders are housed fixedly successively, two-level spring cylinder and three grades of spring cylinders, one-level spring cylinder bottom surface directly contacts with the circular planes of valve plate, the spacing of the circular planes of two-level spring cylinder and three grades of spring cylinders and valve plate is respectively L1 and L2, and L1 is greater than L2.
2. the multistage explosion-released valve of spring self-closing according to claim 1, it is characterized in that: described spring cylinder is made of outer sleeve, inner sleeve and spring, inner sleeve can slide in outer sleeve, between outer sleeve, the inner sleeve spring is housed, and outer sleeve is fixed on the described carriage.
3. the multistage explosion-released valve of spring self-closing according to claim 1 and 2 is characterized in that: a plurality of guide sleeves are also fixed in the circular planes outside at the edge of described valve plate, and guide sleeve one end is enclosed within on the screw rod, and the two is a Spielpassung.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206059735U CN201896978U (en) | 2010-11-15 | 2010-11-15 | Automatic shutoff multi-level explosion relief valve with springs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206059735U CN201896978U (en) | 2010-11-15 | 2010-11-15 | Automatic shutoff multi-level explosion relief valve with springs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201896978U true CN201896978U (en) | 2011-07-13 |
Family
ID=44254885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206059735U Expired - Fee Related CN201896978U (en) | 2010-11-15 | 2010-11-15 | Automatic shutoff multi-level explosion relief valve with springs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201896978U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102466065A (en) * | 2010-11-15 | 2012-05-23 | 江苏神通阀门股份有限公司 | Spring self-closing type multistage explosion venting valve |
| CN103062459A (en) * | 2013-01-19 | 2013-04-24 | 盐城市瑞恒电力石化设备制造有限公司 | Automatic opening and closing pressure-relief anti-explosion safety valve for pipeline system |
-
2010
- 2010-11-15 CN CN2010206059735U patent/CN201896978U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102466065A (en) * | 2010-11-15 | 2012-05-23 | 江苏神通阀门股份有限公司 | Spring self-closing type multistage explosion venting valve |
| CN103062459A (en) * | 2013-01-19 | 2013-04-24 | 盐城市瑞恒电力石化设备制造有限公司 | Automatic opening and closing pressure-relief anti-explosion safety valve for pipeline system |
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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: 20110713 Termination date: 20191115 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |