CN203098981U - Automatic opening and closing pressure-relieving explosion-proof safety valve of pipeline system - Google Patents
Automatic opening and closing pressure-relieving explosion-proof safety valve of pipeline system Download PDFInfo
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- CN203098981U CN203098981U CN 201320031857 CN201320031857U CN203098981U CN 203098981 U CN203098981 U CN 203098981U CN 201320031857 CN201320031857 CN 201320031857 CN 201320031857 U CN201320031857 U CN 201320031857U CN 203098981 U CN203098981 U CN 203098981U
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- proof safety
- pressure
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Abstract
The utility model relates to a pressure stabilization safety device in a pipeline system, in particular to an automatic opening and closing pressure-relieving explosion-proof safety valve of a pipeline system. The automatic opening and closing pressure-relieving explosion-proof safety valve of the pipeline system comprises a valve body seat, guiding rods, auxiliary return springs, a main guiding rod, an adjustable magnetic plate, an absorption plate and a support. A valve cover is in a hollow hemi-cone sphere shape, the upper surface of the valve cover is a plane, three guiding rod sleeves are fixed on the periphery of the valve cover in a welding mode, the central lines of the three guiding rod sleeves and the central lines of three guiding rod holes are respectively in an identical vertical central line, and the valve cover presses a spherical combination seal piece arranged on the valve body seat. The auxiliary return springs are respectively arranged between the upper guiding sleeves of the three guiding rods and a triangular fixed support, and a dustproof protective sleeve is arranged on the periphery of each auxiliary return spring. Buffering cushions are respectively arranged on the main guiding rod, at two ends of three sets of buffering springs and between an upper spring seat and a lower spring seat. The automatic opening and closing pressure-relieving explosion-proof safety valve of the pipeline system has the advantages of being high in pressure relieving speed, good in seal performance, high in temperature resistance, accurate in automatic opening and closing, and capable of being used repeatedly, and does not need to be replaced.
Description
Technical field
The utility model relates to voltage stabilizing safety installations in a kind of pipe-line system, especially a kind of pipe-line system automatic on-off pressure-relief explosion-proof safety valve.
Background technique
Prior art generally is to utilize gravity principle and the disposable explosion principle of diaphragm type at present, be widely applied in the pipe-line system, but wherein there are many open defects: as open quick-fried inaccurate, inaccurate, the poor sealing of can not automatically reseting, reset, non-refractory, can not accurately regulate pressure is vicissitudinous, thereby can not guarantee equipment and personal safety;
Though the technological scheme of utility model patent numbers 03269972 and 2007200134887 can solve above-mentioned existing problems, still there is following technological deficiency in its structure:
1) sealing biserial groove and single seal groove structure performance are bad, and sealability descended when dust stratification was arranged;
2) the guiding resistance is big, the easy dust stratification of leader casing, and return is inaccurate;
3) valve gap adopts plane contact, makes the aggravation of venting of dust explosion power major part on the valve gap plane, is difficult for the suitable venting of dust explosion amount of leading, and influential to explosion-proof effect and use valve gap life-span.
The model utility content
The purpose of this utility model is to provide a kind of above-mentioned prior art shortcoming that overcomes, and has a kind of accurately pipe-line system automatic on-off of the pressure release Su Du Kuai Hao ﹑ automatic on-off of ﹑ sealability pressure-relief explosion-proof safety valve;
For achieving the above object, the technological scheme that the utility model adopted is: this valve comprises valve block, guide rod, auxiliary return spring, leading rod, adjustable magnetic force dish, pay sucker, support is characterized in that: the top and bottom of valve block are provided with flange, on the pedestal periphery between two flanges, be provided with radiating fin, be furnished with abutted flange on the flange below valve block, on set flange in the top and bottom of valve block and abutted flange, be provided with the guide rod hole of three circumference uniform distributions, on the upper flange of valve block, be provided with seal channel, the sphere combination seal is installed in groove; Valve gap is hollow half cone ball shape, is the plane above, and three leader casing solid weldings are on the periphery of valve gap, and the center line of three leader casings and three guide rod holes is respectively on same vertical center line, and valve gap is pressed on the sphere combination seal set above the valve block; The lower end of three guide rods is passed the center hole of three set on valve gap periphery leader casings respectively, fits in the guide rod hole set on valve block top and bottom flange and the abutted flange, and fixes with nut below the valve block upper flange; The triangle fixed support is fixed on the top of three guide rods, and at the middle position of support, set center hole internal fixation has adjustable magnetic force dish; The leading rod base is located at the middle part of valve gap, and the bottom of leading rod base passes the set center hole in last plane of valve gap, fits over the middle part of sphere inner face; Following of leading rod be fixed on the leading rod base above, after the higher authorities of leading rod passed from the set center hole of adjustable magnetic force dish, a sucker was paid in fixed installation, made to pay sucker and suck mutually with adjustable magnetic force dish, constituted common one-tenth pretightening force device; Be provided with upper spring seat below adjustable magnetic force dish, be provided with lower spring cup on the leading rod base, between upper spring seat on the leading rod and lower spring cup, three groups of damping springs are installed, three groups of springs are the combination of three groups of Different diameter springs; Between the top guide bar cover and triangle fixed support of three guide rods, be separately installed with auxiliary return spring, on the periphery of each auxiliary return spring, be respectively equipped with dustproof sheath;
Described a kind of pipe-line system automatic on-off pressure-relief explosion-proof safety valve is characterized in that: on leading rod, the two ends of three groups of damping springs respectively and between upper spring seat and the lower spring cup, are respectively equipped with cushion pad; On three guide rods, between the two ends and spring seat of three auxiliary return springs, be respectively equipped with damping pad;
Described a kind of pipe-line system automatic on-off pressure-relief explosion-proof safety valve is characterized in that: dustproof sheath is made up of two sleeve pipes up and down, and the length of two sleeve pipes is respectively greater than 1/2nd whole pipe ranges up and down, and casing running is movingly in the endoporus of last sleeve pipe; Three cased lower ends are separately fixed in three jacket seat endoporus of being fixed above the leader casing, and three upper ends of going up sleeve pipes are separately fixed at, below three set spring seats of triangle fixed support in the fixing jacket seat endoporus;
Described a kind of pipe-line system automatic on-off pressure-relief explosion-proof safety valve is characterized in that: be provided with composite graphite selflubricating lining in the center hole of leader casing;
Described a kind of pipe-line system automatic on-off pressure-relief explosion-proof safety valve is characterized in that: be fixed with the magnetic force dish dust cover that has sealing gasket above the sucker paying;
Described a kind of pipe-line system automatic on-off pressure-relief explosion-proof safety valve, it is characterized in that: the magnetic post dish in the adjustable magnetic force dish is made by aluminum alloy material;
Described a kind of pipe-line system automatic on-off pressure-relief explosion-proof safety valve is characterized in that: be fixed with nut in paying the set center hole of sucker, pay sucker is fixed on leading rod by nut the higher authorities;
Described a kind of pipe-line system automatic on-off pressure-relief explosion-proof safety valve, it is characterized in that: the sphere combination seal is made up of Y type composite graphite packing and O type composite fiber sealing gasket, the upper flange internal orifice of valve block, be provided with the chamfering that matches at the cone place of matching below valve gap, be furnished with Y type composite graphite packing in the seal groove that on the Flange Plane of valve block, is provided with, in three seal grooves that its chamfering place is provided with, be furnished with O type composite fiber sealing gasket; Valve gap is provided with the flange that matches with the upper flange of valve block, below the valve gap with the place that matches, valve block upper flange plane, be provided with the convex tendon that cooperates with Y type composite graphite packing, with the valve block upper flange internal orifice chamfering place that matches, be provided with and be furnished with O type composite fiber sealing gasket in two seal grooves, and these two Sealings are located between three sealings that its chamfering place of upper flange internal orifice of valve block is provided with, and form the stack sealing.
The utility model beneficial effect compared with prior art:
1.) this valve guarantees that owing to the dull and stereotyped sealing surface with the prior art valve gap changes the contact of half cone sphere into valve gap closes tighter and tighter; Simultaneously can regulate the return locating point automatically again, play that to open quick-fried resistance little, venting of dust explosion speed is fast;
2.), can prevent effectively that dust from entering increasing guide rod guiding resistance owing to outside guide rod, add dustproof sheath; Again owing to, significantly reduced the guiding resistance at the embedded composite graphite selflubricating of leader casing lining;
3.) on the leading rod owing to adopt three groups of damping springs, the rubber buffer vibration isolation that the two ends of spring are set adds three groups of Different diameter springs combinations again, can realize progressively interim stressed compound suction;
In sum, it is accurate to the utlity model has the Hao ﹑ Wen of Nai Gao of pressure release Su Du Kuai ﹑ sealability ﹑ automatic on-off, can reuse, and need not to change.
Description of drawings:
Fig. 1 is that A-A among Fig. 2 is to sectional drawing;
Fig. 2 is Fig. 1 plan view;
Fig. 3 is the I place partial enlarged view among Fig. 1;
Fig. 4 is the II place partial enlarged view among Fig. 1;
Fig. 5 is the III place partial enlarged view among Fig. 1;
Fig. 6 is the IV place partial enlarged view among Fig. 1;
Among the figure:
1. abutted flange, 2. valve block, 3. leader casing, 4. auxiliary return spring, 5. guide rod, 6. dustproof sheath, 7. damping pad, 8. efficient permanent magnet post, 9. adjustable magnetic force dish, 10. magnetic force dish dust cover, 11. radiating fin, 12. sphere combination seals, 13. valve gap, 14. 3 groups of damping springs, 15. leading rods, 16. support, 17. sealing gaskets, 18. pairs of suckers, 19. the adjusting bolt, 20. upper spring seats, 21. cushion pads, 22. leading rod base, 23. lower spring cup, 24. jacket seats, 25. magnetic post dishes, 26. lining, 27. nuts.
Embodiment:
In order to further specify above-mentioned purpose of the present utility model, technological scheme and effect, reach relevant technique known knowledge by the following examples in conjunction with the accompanying drawings the utility model be described:
A kind of pipe-line system automatic on-off pressure-relief explosion-proof safety valve, shown in Fig. 1-6, this valve comprises valve block 2, guide rod 5, auxiliary return spring 4, leading rod 15, adjustable magnetic force dish 9 is paid sucker 18, support 16; Be characterized in: the top and bottom of valve block 2 are provided with flange, on the pedestal periphery between two flanges, be provided with radiating fin 11, is furnished with abutted flange 1 on the flange below valve block 2, on set flange in the top and bottom of valve block 2 and abutted flange 1, be provided with the guide rod hole of three circumference uniform distributions, on the upper flange of valve block 2, be provided with seal channel, sphere combination seal 12 is installed in groove; Valve gap 13 is hollow half cone ball shape, be the plane above, three leader casing 3 solid weldings are on the periphery of valve gap 13, and the center line of three leader casings 3 and three guide rod holes is provided with composite graphite selflubricating lining 26 respectively on same vertical center line in the center hole of leader casing 3; Valve gap 13 is pressed on the sphere combination seal 12 set above the valve block 2; The lower end of three guide rods 5 is passed the center hole of three set on valve gap 13 peripheries leader casings 3 respectively, fits in the guide rod hole set on valve block 2 top and bottom flanges and the abutted flange 1, and fixes with nut below valve block 2 upper flanges; Triangle fixed support 16 is fixed on the top of three guide rods 5, and at the middle position of support 16, set center hole internal fixation has adjustable magnetic force dish 9; Leading rod base 22 is located at the middle part of valve gap 13, and the bottom of leading rod base 22 passes the set center hole in last plane of valve gap 13, fits over the middle part of sphere inner face; Following of leading rod 15 be fixed on leading rod base 22 above, after the higher authorities of leading rod 15 passed from adjustable magnetic force dish 9 set center holes, a sucker 18 was paid in fixed installation, made to pay sucker 18 and suck mutually with adjustable magnetic force dish 9, constituted the common pretightening force device that becomes; Pay sucker 18 and be by in himself set center hole, being fixed with nut 27, pay sucker 18 is fixed on leading rod 15 by nut 27 the higher authorities; Be fixed with the magnetic force dish dust cover 10 that has sealing gasket 17 above the sucker 18 paying, enter in the magnetic force dish to prevent dust; Magnetic post dish 25 in the adjustable magnetic force dish 9 is made by aluminum alloy material, in magnetic post dish 25, are furnished with 15 left and right sides efficient permanent magnet posts 8 in the dish, according to required magnetic force size changeable number, and adjust efficient permanent magnet post 8 to the distance up and down of paying sucker 18 by regulating bolt 19, imitate permanent magnetism post 8 and pay variable in distance between the sucker 18, magnet suction is just along with having changed; Prior art magnetic post dish 25 is to adopt the bakelite material to make, and aluminium flake is formed on the pad below magnetic post dish 25, not only complex structure, and cost height; Below adjustable magnetic force dish 9, be provided with upper spring seat 20, on leading rod base 22, be provided with lower spring cup 23, between upper spring seat 20 on the leading rod 15 and lower spring cup 23, the combination that 14, three groups of springs of three groups of damping springs are installed is three groups of Different diameter springs; Between the top guide bar cover 3 and triangle fixed support 16 of three guide rods 5, be separately installed with auxiliary return spring 4, on the periphery of each auxiliary return spring 4, be respectively equipped with dustproof sheath 6; Dustproof sheath 6 is made up of two sleeve pipes up and down, and the length of two sleeve pipes is respectively greater than 1/2nd whole pipe ranges up and down, and casing running is movingly in the endoporus of last sleeve pipe; Three cased lower ends are separately fixed in jacket seat 24 endoporus of fix above three leader casings 3, and three upper ends of going up sleeve pipes are separately fixed at, in jacket seat 24 endoporus of fixing below three triangle fixed support 16 set spring seats; On leading rod 15, the two ends of three groups of damping springs 14 respectively and between upper spring seat 20 and the lower spring cup 23, are respectively equipped with cushion pad 21; On three guide rods 5, between the two ends and spring seat of three auxiliary return springs 4, be respectively equipped with damping pad 7;
Described sphere combination seal 12 is made up of Y type composite graphite packing and O type composite fiber sealing gasket, the upper flange internal orifice of valve block 2, be provided with the chamfering that matches at the cone place of matching below valve gap 13, be furnished with Y type composite graphite packing in the seal groove that on the Flange Plane of valve block 2, is provided with, in three seal grooves that its chamfering place is provided with, be furnished with O type composite fiber sealing gasket; Valve gap 13 is provided with the flange that matches with the upper flange of valve block 2, below the valve gap 13 with the place that matches, valve block 2 upper flange planes, be provided with the convex tendon that cooperates with Y type composite graphite packing, with the valve block 2 upper flange internal orifice chamferings place that matches, be provided with and be furnished with O type composite fiber sealing gasket in two seal grooves, and these two Sealings are located between three sealings that its chamfering place of upper flange internal orifice of valve block 2 is provided with, and form the stack sealing;
Working procedure and working principle:
This valve is under the equipment operation normal state, magnetic attraction between adjustable magnetic force dish 9 and pair sucker 18 (for the working pressure of setting), and in conjunction with the elastic force of three groups of damping springs 14, be delivered on the valve gap 13 by leading rod 15, rely on black box and the compound combination of seal groove above the valve block 2 on the valve gap 13, valve gap 13 is closed tightly, and maintenance equipment normally moves; When operating pressure in the equipment is higher than the operating pressure of setting, explosive gas cognition moment generation huge impact power is opened valve gap 13 in the equipment, valve gap 13 moves upward along three circular guide rods 5, and by middle leading rod 15 make with middle leading rod 15 on the top adjustable magnetic force dish 9 and pay sucker 18 and throw off, when valve gap 13 rises rapidly, auxiliary return spring 4 on middle three groups of damping springs 14 and three guide rods 5 is compressed, absorbed the impact force of explosion gas, be lower than the moment of opening detonation pressure power by the pressure in the equipment after the pressure release, valve gap 13 can be under the rebounding force effect of the secondary spring 4 on three groups of damping springs 14 and three guide rods 5, valve gap 13 is returned to the origin-location rapidly, and by the magnetic attraction between adjustable magnetic force dish 9 and pair sucker 18, black box on the valve gap 13 is pressed in the seal groove above the valve block 2 valve gap 13 is closed tightly, restorer normally moves.
Claims (8)
1. pipe-line system automatic on-off pressure-relief explosion-proof safety valve, comprise valve block (2), guide rod (5), auxiliary return spring (4), leading rod (15), adjustable magnetic force dish (9), pay sucker (18), support (16) is characterized in that: the top and bottom of valve block (2) are provided with flange, on the pedestal periphery between two flanges, be provided with radiating fin (11), be furnished with abutted flange (1) on the flange below valve block (2), on set flange in the top and bottom of valve block (2) and abutted flange (1), be provided with the guide rod hole of three circumference uniform distributions, on the upper flange of valve block (2), be provided with seal channel, sphere combination seal (12) is installed in groove; Valve gap (13) is hollow half cone ball shape, be the plane above, three leader casings (3) solid welding is on the periphery of valve gap (13), and on same vertical center line, valve gap (13) is pressed on the sphere combination seal (12) set above the valve block (2) center line of three leader casings (3) and three guide rod holes respectively; The lower end of three guide rods (5), pass the center hole of three leader casings (3) set on valve gap (13) periphery respectively, fit over valve block (2) top and bottom flange and abutted flange (1) and go up in the set guide rod hole, and below valve block (2) upper flange, fix with nut; Triangle fixed support (16) is fixed on the top of three guide rods (5), and at the middle position of support (16), set center hole internal fixation has adjustable magnetic force dish (9); Leading rod base (22) is located at the middle part of valve gap (13), and the bottom of leading rod base (22) passes the set center hole in last plane of valve gap (13), fits over the middle part of sphere inner face; Following of leading rod (15) be fixed on leading rod base (22) above, after the higher authorities of leading rod (15) pass from the set center hole of adjustable magnetic force dish (9), sucker (18) is paid in fixed installation, pair sucker (18) and adjustable magnetic force dish (9) are sucked mutually, constitute common one-tenth pretightening force device; Below adjustable magnetic force dish (9), be provided with upper spring seat (20), on leading rod base (22), be provided with lower spring cup (23), go up between upper spring seat (20) and the lower spring cup (23) at leading rod (15), three groups of damping springs (14) are installed, and three groups of springs are the combination of three groups of Different diameter springs; Between the top guide bar cover (3) and triangle fixed support (16) of three guide rods (5), be separately installed with auxiliary return spring (4), on the periphery of each auxiliary return spring (4), be respectively equipped with dustproof sheath (6).
2. a kind of pipe-line system automatic on-off pressure-relief explosion-proof safety valve according to claim 1, it is characterized in that: on leading rod (15), the two ends of three groups of damping springs (14) respectively and between upper spring seat (20) and the lower spring cup (23), are respectively equipped with cushion pad (21); On three guide rods (5), between the two ends and spring seat of three auxiliary return springs (4), be respectively equipped with damping pad (7).
3. a kind of pipe-line system automatic on-off pressure-relief explosion-proof safety valve according to claim 1, it is characterized in that: dustproof sheath (6) is made up of two sleeve pipes up and down, the length of two sleeve pipes is respectively greater than 1/2nd whole pipe ranges up and down, and casing running is movingly in the endoporus of last sleeve pipe; Three cased lower ends are separately fixed in jacket seat (24) endoporus of being fixed above three leader casings (3), three upper ends of going up sleeve pipes are separately fixed at, below the set spring seat of three triangle fixed supports (16) in fixing jacket seat (24) endoporus.
4. a kind of pipe-line system automatic on-off pressure-relief explosion-proof safety valve according to claim 1 is characterized in that: be provided with composite graphite selflubricating lining (26) in the center hole of leader casing (3).
5. a kind of pipe-line system automatic on-off pressure-relief explosion-proof safety valve according to claim 1 is characterized in that: be fixed with the magnetic force dish dust cover (10) that has sealing gasket (17) above the sucker (18) paying.
6. a kind of pipe-line system automatic on-off pressure-relief explosion-proof safety valve according to claim 1, it is characterized in that: the magnetic post dish (25) in the adjustable magnetic force dish (9) is made by aluminum alloy material.
7. a kind of pipe-line system automatic on-off pressure-relief explosion-proof safety valve according to claim 1, it is characterized in that: in paying the set center hole of sucker (18), be fixed with nut (27), pay sucker (18) is fixed on leading rod (15) by nut (27) the higher authorities.
8. a kind of pipe-line system automatic on-off pressure-relief explosion-proof safety valve according to claim 1, it is characterized in that: sphere combination seal (12) is made up of Y type composite graphite packing and O type composite fiber sealing gasket, the upper flange internal orifice of valve block (2), be provided with the chamfering that matches at the cone place of matching below valve gap (13), be furnished with Y type composite graphite packing in the seal groove that on the Flange Plane of valve block (2), is provided with, in three seal grooves that its chamfering place is provided with, be furnished with O type composite fiber sealing gasket; Valve gap (13) is provided with the flange that matches with the upper flange of valve block (2), below the valve gap (13) with the place that matches, valve block (2) upper flange plane, be provided with the convex tendon that cooperates with Y type composite graphite packing, with valve block (2) the upper flange internal orifice chamfering place that matches, be provided with and be furnished with O type composite fiber sealing gasket in two seal grooves, and these two Sealings are located between three sealings that its chamfering place of upper flange internal orifice of valve block (2) is provided with, and form the stack sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320031857 CN203098981U (en) | 2013-01-19 | 2013-01-19 | Automatic opening and closing pressure-relieving explosion-proof safety valve of pipeline system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320031857 CN203098981U (en) | 2013-01-19 | 2013-01-19 | Automatic opening and closing pressure-relieving explosion-proof safety valve of pipeline system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203098981U true CN203098981U (en) | 2013-07-31 |
Family
ID=48850386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320031857 Withdrawn - After Issue CN203098981U (en) | 2013-01-19 | 2013-01-19 | Automatic opening and closing pressure-relieving explosion-proof safety valve of pipeline system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203098981U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105587885A (en) * | 2016-03-11 | 2016-05-18 | 航天长征化学工程股份有限公司 | Sealing ball valve |
-
2013
- 2013-01-19 CN CN 201320031857 patent/CN203098981U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105587885A (en) * | 2016-03-11 | 2016-05-18 | 航天长征化学工程股份有限公司 | Sealing ball valve |
| CN105587885B (en) * | 2016-03-11 | 2024-05-28 | 航天长征化学工程股份有限公司 | Sealing ball 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 |
Granted publication date: 20130731 Effective date of abandoning: 20150304 |
|
| RGAV | Abandon patent right to avoid regrant |