CN2900973Y - Gas safety anti-leakage valve - Google Patents
Gas safety anti-leakage valve Download PDFInfo
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- CN2900973Y CN2900973Y CN 200620078688 CN200620078688U CN2900973Y CN 2900973 Y CN2900973 Y CN 2900973Y CN 200620078688 CN200620078688 CN 200620078688 CN 200620078688 U CN200620078688 U CN 200620078688U CN 2900973 Y CN2900973 Y CN 2900973Y
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- spring
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- explosion
- gas safety
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Abstract
The utility model provides a firedamp safely blowing out device used in high blast furnace, converting steelmaking furnace, coke oven and gas purifying recovery system of the gas generator, in particular to a gas safely blowing out valve, which is characterized in that, the circumference of the valve base (5) is provided with a guide rod rack (9), which is connected with the lower end of the guide rod (2); the upper end of the guide rod (2) is connected with the spring rack (3), wherein the spring rack (3) is connected with three spring devices (1), the guide rod (2) is hitched with a self-oiling guide bushing (7), which has a sealing platform (8) extending along the central direction of a blowing out bonnet (4); the upper surface of the sealing platform (8) is connected with the spring device (1); the lower surface of the sealing platform (8) is sealing connected with the blowing out bonnet (4) through a seal ring (6). The utility model has an accurate self-reset and a good sealing property, blocks up the air return flow and can't incur a secondary blast, blows out quickly and takes a short time, and reduces the operation cost and the maintenance expense.
Description
Technical field
The utility model is a kind of gas purification reclaiming system explosion gas safety explosion venting device, particularly gas safety explosion-released valve that is used for blast furnace, steelmaking converter, coking coke oven and gas producer.
Background technique
In the gas purification reclaiming system of blast furnace, steelmaking converter, coking coke oven and gas producer, commonly used to electrical precipitator, electrical precipitator is to utilize electrion, high pressure control of dust to reach the environmental protection equipment of dedusting purpose, when the coal gas oxygen content exceeds standard, can be easy in the electric cleaner of electrion, blast.For protection equipment and personal safety, design has the diaphragm type explosion-proof valve in electrical precipitator usually, at explosion time pressure diaphragm is damaged, and releases explosion pressure, thus protection equipment, and the assurance system normally moves.There are the following problems for the diaphragm type explosion-proof valve: the one, and sealing problem, the sealing that resets behind the venting of dust explosion is bad, is easy to form air circulation, causes secondary explosion.The 2nd, maintenance issues, the every venting of dust explosion of diaphragm type explosion-proof valve once must be changed quick-fried film, and the venting of dust explosion film is changed in the blast back needs the halt system operation, safeguard also inconvenient.
Summary of the invention
The purpose of this utility model provides a kind of gas safety explosion-released valve, and it is fast automatic recovery and the gas safety explosion-released valve that need not safeguard, and valve gap is closed rapidly behind the venting of dust explosion, automatically resets accurately and good seal performance; The blocking-up air circulation can not cause secondary explosion; Venting of dust explosion is fast, the time is short; Can reduce operating cost and maintenance cost.
The purpose of this utility model is achieved in that the gas safety explosion-released valve, it is characterized in that: comprise valve seat 5, valve seat 5 peripheries have guide rod fixing frame 9, and guide rod fixing frame 9 is connected by bolt, nut with guide rod 2 lower ends; Guide rod 2 upper ends are connected with spring anchorage bracket 3 by bolt, nut, wherein are connected with 1, three grade of spring assembly 1 of three grades of spring assemblies on the spring anchorage bracket 3 vertically downward; Be with self-oiling guide bushing 7 on the guide rod 2, be extended with sealing platform 8 to venting of dust explosion valve gap 4 central directions from intercalation sliding guide pin bushing 7; Sealing platform 8 upper surfaces are connected with three grades of spring assemblies 1; Sealing platform 8 lower surfaces are tightly connected by seal ring 6 and venting of dust explosion valve gap 4 round edges.
The first order in described three grades of spring assemblies 1 is that 4 spiral compression springs are cross distribution, and 4 spiral compression spring prestressing are on valve gap.
Second level spring in described three grades of spring assemblies 1 is 8 spiral compression springs, is uniformly distributed between 4 spiral compression springs of the first order and 4 dish springs of the third level.
Third level spring in described three grades of spring assemblies 1 is 4 dish springs, and the dish spring also is a cross distribution, is uniformly distributed between 4 spiral compression springs of the first order.
Described guide rod 2 has 8, and 8 guide rods are distributed in 4 one-level springs and 4 three grades of springs outsides.
Surveying in the described venting of dust explosion valve gap 4 is cone structure, and outer the survey is spheric structure.
Be processed with seal groove on the described valve seat 5, seal ring 6 edges within it.
Described seal ring 6 is high temperature resistant, impact-resistant silica gel materials.
3 fens spring retaining sleeve tubes of described spring anchorage bracket and spring quill, two-level spring II, three grades of spring III are fixed in the spring spool by guide rod 2; One-level spring I is placed directly in the one-level spring spool.
Characteristics of the present utility model are: because the utility model is to finish safe venting of dust explosion by spring assembly, guide rod, spring anchorage bracket, venting of dust explosion valve gap, valve seat, seal ring and self-oiling guide bushing.The venting of dust explosion spring assembly is divided into three grades, and the first order plays the sealing pressuring action, and the second level and the third level play buffer function, and first and second level is a spiral compression spring, and the third level is a spring.When gas was blasted, the venting of dust explosion valve gap at first promotes first order spring to be continued to open along guide rod, and it is bigger that valve gap is opened, and plays the secondary venting of dust explosion; When huge the splitting of blast, the venting of dust explosion valve gap then can promote third level spring, and explosion pressure is fully discharged, and pressure discharges back venting of dust explosion valve gap can push back original state rapidly under the effect of spring force, play seal action again.Whole process need not be shut down, and is very convenient.The utlity model has following advantage:
1, valve gap is closed rapidly behind the venting of dust explosion, automatically resets accurately and good seal performance;
2, the blocking-up air circulation can not cause secondary explosion;
3, venting of dust explosion is fast, the time is short;
So 4,, can reduce operating cost and maintenance cost because do not use the venting of dust explosion film need not shut down replacing.
Description of drawings
Below in conjunction with embodiment's accompanying drawing the utility model is described further.
Fig. 1 is embodiment's state of rest structural representation;
Fig. 2 is the plan view of Fig. 1;
Fig. 3 is embodiment's venting of dust explosion working state structure schematic representation.
Among the figure: 1, three grades of spring assemblies; 2, guide rod; 3, spring anchorage bracket; 4, venting of dust explosion valve gap; 5, valve seat; 6, seal ring; 7, self-oiling guide bushing; 8, sealing platform; 9, guide rod fixing frame; I, one-level spring; II, two-level spring; III, three grades of springs.
Embodiment:
As shown in Figure 1, valve seat 5 peripheries have guide rod fixing frame 9, and guide rod fixing frame 9 is connected by bolt, nut with guide rod 2 lower ends; Guide rod 2 upper ends are connected with spring anchorage bracket 3 by bolt, nut, wherein are connected with three grades of spring assemblies 1 on the spring anchorage bracket 3; Be with self-oiling guide bushing 7 on the guide rod 2, self-oiling guide bushing 7 is extended with sealing platform 8 to taper venting of dust explosion valve gap 4 central directions; Sealing platform 8 upper surfaces are connected with three grades of spring assemblies 1; Sealing platform 8 lower surfaces are tightly connected by seal ring 6 and limit, taper venting of dust explosion valve gap 4 garden.
On the above-mentioned valve seat 5 bolt is arranged, bolt links to each other with miscellaneous equipment, need add resistant to elevated temperatures a kind of non-asbestos slate sealing during connection, and tight to spreading a kind of anti-silica gel sealing on this non-asbestos slate.
Be processed with seal groove on the valve seat 5, seal ring 6 edges within it.Seal ring 6 adopts a kind of high temperature resistant, impact-resistant silica gel to make.
Band self-oiling guide bushing 7 is welded on the venting of dust explosion valve gap 4, and its can slide with opening along stainless steel guide rod 2 of venting of dust explosion valve gap 4 when venting of dust explosion, and the friction factor of it and stainless steel guide rod 2 is very little, thereby has guaranteed the flexibility of the opening and closing of explosion-released valve.
Surveying in the venting of dust explosion valve gap 4 is cone structure, and outer the survey is spheric structure.Cone structure plays the gas channeling effect, and spheric structure plays the resistance to compression effect.The characteristics of this structure maximum are compact, in light weight, resistance to compressions and easily derive air blast, and are not easy off-centre when deriving air blast, thereby having guaranteed that this explosion-released valve can be installed on the inclined-plane that is not more than 60 ° works, and its performance is unaffected.
As shown in Figure 2, the utility model embodiment adopts three grades of spring assemblies 1, and the first order is 4 spiral compression springs, and the spring prestressing seals on valve gap; 4 spiral compression springs of the first order are cross distribution, and that can see mark I on plan view 2 is one-level spring I.That 8 spiral compression springs in the second level can be seen mark II on plan view 2 is two-level spring II, is uniformly distributed between 4 spiral compression springs of the first order and 4 dish springs of the third level, and the spring prestressing seals on valve gap; The second level is 8 spiral compression springs, is in free state, plays the first-level buffer effect, 4 dish springs of the third level also are cross distribution, and that can see mark III on Fig. 2 is three grades of spring III, is uniformly distributed between 4 spiral compression springs of the first order, be in free state, play the level 2 buffering effect.
Can see that from Fig. 2 guide rod 2 has 8,8 guide rods 2 are distributed in 4 one-level spring I and 4 three grades of spring III outsides.Guide rod 2 is to process with stainless steel precision, one end and valve seat 5 drive fits are assembled together, the other end is with high strength nut fixing spring fixing frame 3, by regulating the pretightening force that high strength nut can be regulated one-level spring I, the cracking pressure of just having regulated explosion-released valve.
The utility model can be installed in to be not more than on 60 ° of inclined-planes and work, and its performance is unaffected, and its good seal performance is quick on the draw, and close behind the venting of dust explosion rapidly, and cracking pressure is convenient adjustable.According to opening detonation pressure force-summing device working pressure and equipment design pressure, determine three kinds of spring parameters by calculating, and determine the pretightening force of one-level spring I; Determine corresponding seal ring according to pretension situation and working condition, comprise parameters such as its hardness; One side is that taper simultaneously is that the venting of dust explosion valve gap of sphere shape is the important component part of this explosion-released valve, it has guaranteed the smooth derivation of air blast and the safety of explosion-released valve body, and it in light weight and be not easy off-centre when deriving air blast and guaranteed that this explosion-released valve can be installed on the inclined-plane that is not more than 60 ° and work.
Fig. 3 is embodiment's venting of dust explosion working state structure schematic representation, as shown in Figure 3, when gas is blasted in the equipment, air-flow will at first promote venting of dust explosion valve gap 4 and upwards promote three grades of spring assemblies 1 along guide rod 2 and move upward, make air-flow release rapidly, the equipment internal air pressure descends.
After the explosion-released valve pressure release, the equipment internal pressure descends, and three grades of spring assemblies 1 promote venting of dust explosion valve gap 4 and depress rapidly, are returned to original pretension state, play seal action.
Claims (9)
1, gas safety explosion-released valve is characterized in that: comprise valve seat (5), valve seat (5) periphery has guide rod fixing frame (9), and guide rod fixing frame (9) is connected by bolt, nut with guide rod (2) lower end; Guide rod (2) upper end is connected with spring anchorage bracket (3) by bolt, nut, wherein is connected with three grades of spring assemblies (1) on the spring anchorage bracket (3), and three grades of spring assemblies (1) vertically downward; Be with self-oiling guide bushing (7) on the guide rod (2), self-oiling guide bushing (7) is extended with sealing platform (8) to venting of dust explosion valve gap (4) central direction; Sealing platform (8) upper surface is connected with three grades of spring assemblies (1); Sealing platform (8) lower surface is tightly connected by seal ring (6) and venting of dust explosion valve gap (4) round edge.
2, gas safety explosion-released valve according to claim 1 is characterized in that: the first order in described three grades of spring assemblies (1) is that 4 spiral compression springs are cross distribution, and 4 spiral compression spring prestressing are on valve gap.
3, gas safety explosion-released valve according to claim 1 is characterized in that: the second level spring in described three grades of spring assemblies (1) is 8 spiral compression springs, is uniformly distributed between 4 spiral compression springs of the first order and 4 dish springs of the third level.
4, gas safety explosion-released valve according to claim 1 is characterized in that: the third level spring in described three grades of spring assemblies (1) is 4 dish springs, and the dish spring also is a cross distribution, is uniformly distributed between 4 spiral compression springs of the first order.
5, gas safety explosion-released valve according to claim 1 is characterized in that: described guide rod (2) has 8, and 8 guide rods are distributed in 4 one-level springs and 4 three grades of springs outsides.
6, gas safety explosion-released valve according to claim 1 is characterized in that: surveying in the described venting of dust explosion valve gap (4) is cone structure, and outer the survey is spheric structure.
7, gas safety explosion-released valve according to claim 1 is characterized in that: described valve seat is processed with seal groove on (5), and seal ring (6) is inlayed within it.
8, gas safety explosion-released valve according to claim 1 is characterized in that: described seal ring (6) is high temperature resistant, impact-resistant silica gel material.
9, gas safety explosion-released valve according to claim 1 is characterized in that: described spring anchorage bracket (3) divides spring retaining sleeve tube and spring quill, and two-level spring (II), three grades of springs (III) are fixed in the spring spool by guide rod (2); One-level spring (I) is placed directly in the one-level spring spool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620078688 CN2900973Y (en) | 2006-03-31 | 2006-03-31 | Gas safety anti-leakage valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620078688 CN2900973Y (en) | 2006-03-31 | 2006-03-31 | Gas safety anti-leakage valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2900973Y true CN2900973Y (en) | 2007-05-16 |
Family
ID=38085137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620078688 Expired - Fee Related CN2900973Y (en) | 2006-03-31 | 2006-03-31 | Gas safety anti-leakage valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2900973Y (en) |
Cited By (5)
| 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 |
| CN101554617B (en) * | 2008-12-17 | 2012-05-30 | 中国重型机械研究院 | Method for designing cylindrical horizontal wet electrical dust precipitator |
| CN102953120A (en) * | 2011-08-31 | 2013-03-06 | 上海朗兆机电设备有限公司 | Device for releasing pressure of single crystal growing furnace |
| CN108612875A (en) * | 2018-05-28 | 2018-10-02 | 南京航空航天大学 | The explosion venting valve that a kind of master for old metal crusher passively combines |
| CN114776854A (en) * | 2022-03-24 | 2022-07-22 | 江苏天楹等离子体科技有限公司 | Explosion venting device for radioactive waste treatment system |
-
2006
- 2006-03-31 CN CN 200620078688 patent/CN2900973Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101554617B (en) * | 2008-12-17 | 2012-05-30 | 中国重型机械研究院 | Method for designing cylindrical horizontal wet electrical dust precipitator |
| 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 |
| CN102953120A (en) * | 2011-08-31 | 2013-03-06 | 上海朗兆机电设备有限公司 | Device for releasing pressure of single crystal growing furnace |
| CN102953120B (en) * | 2011-08-31 | 2015-08-12 | 上海朗兆机电设备有限公司 | Monocrystal growing furnace pressure releasing means |
| CN108612875A (en) * | 2018-05-28 | 2018-10-02 | 南京航空航天大学 | The explosion venting valve that a kind of master for old metal crusher passively combines |
| CN108612875B (en) * | 2018-05-28 | 2023-09-29 | 南京航空航天大学 | Active and passive combined explosion venting valve for waste metal crusher |
| CN114776854A (en) * | 2022-03-24 | 2022-07-22 | 江苏天楹等离子体科技有限公司 | Explosion venting device for radioactive waste treatment system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA NATIONAL HEAVY MACHINERY RESEARCH INSTITUTE Free format text: FORMER OWNER: XI-AN HEAVY MACHINERY INST. Effective date: 20140825 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 710000 XI AN, SHAANXI PROVINCE TO: 710032 XI AN, SHAANXI PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140825 Address after: 710032 Shaanxi province Xi'an Weiyang Dongyuan Road No. 209 Patentee after: China National Heavy Machinery Research Institute Co., Ltd. Address before: 710000 Shaanxi city of Xi'an province Beijiao Xin Jiamiao Patentee before: Xi-an Heavy Machinery Inst. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070516 Termination date: 20150331 |
|
| EXPY | Termination of patent right or utility model |