CN103062459B - Automatic opening and closing pressure-relief anti-explosion safety valve for pipeline system - Google Patents
Automatic opening and closing pressure-relief anti-explosion safety valve for pipeline system Download PDFInfo
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- CN103062459B CN103062459B CN201310022393.1A CN201310022393A CN103062459B CN 103062459 B CN103062459 B CN 103062459B CN 201310022393 A CN201310022393 A CN 201310022393A CN 103062459 B CN103062459 B CN 103062459B
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Abstract
The invention relates to an automatic opening and closing pressure-relief anti-explosion safety valve for a pipeline system. The automatic opening and closing pressure-relief anti-explosion safety valve is characterized in that three guide rod holes in circumferential uniform distribution are arranged on each of flanges arranged on the upper surface and the lower surface of a valve body seat, a spherical surface combination seal part is mounted in a seal part groove arranged on the flange on the upper surface of the valve body seat, a valve bonnet is in a hollow half-conisphere shape, three guide rod sleeves are fixedly welded on the periphery of the valve bonnet, the valve bonnet presses the spherical surface combination seal part arranged on the upper surface of the valve seat, the lower ends of three guide rods are assembled in the guide rod holes of the valve body seat, a support is fixed at the top ends of the three guide rods, an adjustable magnetic force disc is fixed at the center of the support, the lower end of a main guide rod is fixed in the middle of the valve bonnet, an auxiliary sucker is fixedly mounted after an upper end of the main guide rod penetrates out of a central hole of the adjustable magnetic force disc, three groups of buffer springs are mounted on the main guide rod, and dustproof protecting sleeves are arranged on the peripheries of auxiliary return springs mounted on the three guide rods. The automatic opening and closing pressure-relief anti-explosion safety valve for the pipeline system has the advantages of high pressure relief speed, good sealing performance, high temperature resistance, automatic opening and closing accuracy, reusability and avoidance of replacement.
Description
Technical field
The present invention 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
Currently available technology is generally utilize gravity principle and diaphragm type blasting in once-through principle, be widely applied in pipe-line system, but wherein there is many open defects: as open quick-fried inaccurate, can not automatically reset, reset inaccurate, poor sealing, non-refractory, accurately can not regulate pressure is vicissitudinous, thus the safety of equipment and the person can not be ensured;
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) sealed double-row groove and single seal groove structure performance bad, when having a dust stratification, sealability declines;
2) resistance that leads is large, the easy dust stratification of leader casing, and return is inaccurate;
3) valve gap employing plane contact, making the aggravation of venting of dust explosion power major part in valve gap plane, not easily along leading venting of dust explosion amount, and having impact to explosion-proof effect and use valve gap life-span.
Summary of the invention
The object of the present invention is to provide a kind of above-mentioned prior art shortcoming that overcomes, there is the Hao ﹑ automatic on-off of pressure release Su Du Kuai ﹑ sealability a kind of pipe-line system automatic on-off pressure-relief explosion-proof safety valve accurately;
For achieving the above object, the technical solution adopted in the present invention is: this valve comprises valve block, guide rod, auxiliary return spring, leading rod, regulatable magnetic force dish, pay sucker, support, it is characterized in that: the top and bottom of valve block are provided with flange, pedestal periphery between two flanges is provided with radiating fin, flange below valve block is furnished with abutted flange, on flange set by the top and bottom of valve block and abutted flange, be provided with the guide rod hole of three circumference uniform distributions, the upper flange of valve block is provided with seal channel, sphere combination seal is installed in groove, sphere combination seal is made up of Y type composite graphite sealing gasket and O type composite fiber sealing gasket, the upper flange internal orifice of valve block, with valve gap below the cone place of matching be provided with the chamfering matched, the Flange Plane of valve block is furnished with in the seal groove be provided with Y type composite graphite sealing gasket, O type composite fiber sealing gasket is furnished with in three seal grooves that its chamfering place is provided with, valve gap is provided with the flange matched with the upper flange of valve block, locate matching with valve block upper flange plane below valve gap, be provided with the convex tendon coordinated with Y type composite graphite sealing gasket, locate matching with valve block upper flange internal orifice chamfering, be provided with in two seal grooves and be furnished with O type composite fiber sealing gasket, 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 superposition sealing, valve gap is hollow half cone ball shape, is 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 sphere combination seal set above valve block, the lower end of three guide rods, is each passed through the center hole of three leader casings set on valve gap periphery, fits in guide rod hole set on valve block top and bottom flange and abutted flange, and fixes with nut below valve block upper flange, support is fixed on the top of three guide rods, and at the middle position of support, set center hole internal fixtion has regulatable magnetic force dish, leading rod base is located at the middle part of valve gap, and the bottom of leading rod base through valve gap upper plane set by center hole, fit over the middle part of sphere inner face, the following of leading rod is fixed on above leading rod base, and after the top of leading rod passes from center hole set by regulatable magnetic force dish, a sucker is paid in fixed installation, makes to pay sucker and mutually sucks with regulatable magnetic force dish, common formation pretightening force device, below regulatable magnetic force dish, be provided with upper spring seat, on leading rod base, be provided with lower spring cup, on leading rod between upper spring seat and lower spring cup, be provided with three groups of damping springs, three groups of springs are the combination of three groups of Different diameter springs, between the leader casing and support of three guide rods, be separately installed with auxiliary return spring, the periphery of each auxiliary return spring is respectively equipped with dust-proof 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 lower spring cup, is respectively equipped with cushion pad; On three guide rods, between the two ends of three auxiliary return springs and spring seat, 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: dust-proof sheath is made up of upper and lower two sleeve pipes, and casing running moves and is engaged in the endoporus of sleeve pipe; Three cased lower ends to be separately fixed at above three leader casings in the jacket seat endoporus fixed, the upper ends of three upper sleeve pipes are separately fixed in jacket seat endoporus fixing below spring seat set by three supports;
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 self-lubricating bushing 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: on pair sucker, be fixed with the magnetic disk dust cover with sealing gasket;
Described a kind of pipe-line system automatic on-off pressure-relief explosion-proof safety valve, is characterized in that: the magnetic post dish in regulatable magnetic force dish is made up of aluminum alloy material;
Described a kind of pipe-line system automatic on-off pressure-relief explosion-proof safety valve, is characterized in that: in center hole set by pair sucker, be fixed with nut, pays sucker is fixed on leading rod top by nut.
The present invention's beneficial effect compared with prior art:
1.) this valve is owing to changing the plate seal face of prior art valve gap into half cone sphere-contact, ensures that valve gap closes tighter and tighter; Simultaneously can automatically regulate return locating point again, play that to open quick-fried resistance little, venting of dust explosion speed is fast;
2.) owing to adding dust-proof sheath outside guide rod, effectively can prevent dust from entering and strengthen guide rod guiding resistance; Again due at the embedded composite graphite self-lubricating bushing of leader casing, greatly reduce guiding resistance;
3.) on leading rod owing to adopting three groups of damping springs, the rubber buffer vibration isolation set by the two ends of spring, then add the combination of three groups of Different diameter springs, can realize progressively interim stressed compound suction;
In sum, it is accurate that the present invention has pressure release Su Du Kuai ﹑ sealability Hao ﹑ Wen of Nai Gao ﹑ automatic on-off, can reuse, without the need to changing.
Accompanying drawing illustrates:
Fig. 1 is that A-A in Fig. 2 is to sectional drawing;
Fig. 2 is Fig. 1 plan view;
Fig. 3 is I place's partial enlarged view in Fig. 1;
Fig. 4 is II place's partial enlarged view in Fig. 1;
Fig. 5 is III place's partial enlarged view in Fig. 1;
Fig. 6 is IV place's partial enlarged view in Fig. 1;
In figure:
1. abutted flange, 2. valve block, 3. leader casing, 4. auxiliary return spring, 5. guide rod, 6. dust-proof sheath, 7. damping pad, 8. efficient permanent magnet post, 9. regulatable magnetic force dish, 10. magnetic disk dust cover, 11. radiating fin, 12. sphere combination seals, 13. valve gaps, 14. 3 groups of damping springs, 15. leading rods, 16. supports, 17. sealing gaskets, 18. pairs of suckers, 19. adjusting bolts, 20. upper spring seats, 21. cushion pads, 22. leading rod bases, 23. lower spring cups, 24. jacket seats, 25. magnetic post dishes, 26. linings, 27. nuts.
Embodiment:
In order to further illustrate above-mentioned purpose of the present invention, technological scheme and effect, by the following examples by reference to the accompanying drawings and related known technological know-how the present invention is described:
A kind of pipe-line system automatic on-off pressure-relief explosion-proof safety valve, as shown in figures 1 to 6, this valve comprises valve block 2, guide rod 5, auxiliary return spring 4, leading rod 15, and regulatable magnetic force dish 9, pays sucker 18, support 16, be characterized in: the top and bottom of valve block 2 are provided with flange, pedestal periphery between two flanges is provided with radiating fin 11, flange below valve block 2 is furnished with abutted flange 1, on flange set by the top and bottom of valve block 2 and abutted flange 1, be provided with the guide rod hole of three circumference uniform distributions, the upper flange of valve block 2 is provided with seal channel, sphere combination seal 12 is installed in groove, described sphere combination seal 12 is made up of Y type composite graphite sealing gasket and O type composite fiber sealing gasket, the upper flange internal orifice of valve block 2, with valve gap 13 below the cone place of matching be provided with the chamfering matched, the Flange Plane of valve block 2 is furnished with in the seal groove be provided with Y type composite graphite sealing gasket, O type composite fiber sealing gasket is furnished with in three seal grooves that its chamfering place is provided with, valve gap 13 is provided with the flange matched with the upper flange of valve block 2, valve gap 13 is located matching with valve block 2 upper flange plane below, be provided with the convex tendon coordinated with Y type composite graphite sealing gasket, locate matching with valve block 2 upper flange internal orifice chamfering, be provided with in two seal grooves and be furnished with O type composite fiber sealing gasket, 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 superposition sealing, valve gap 13 is in hollow half cone ball shape, be plane above, the solid welding of three leader casings 3 is on the periphery of valve gap 13, and the center line of three leader casings 3 and three guide rod holes is respectively on same vertical center line, is provided with composite graphite self-lubricating bushing 26 in the center hole of leader casing 3, valve gap 13 is pressed on the set sphere combination seal 12 of valve block 2 above, the lower end of three guide rods 5, is each passed through the center hole of three leader casings 3 set on valve gap 13 periphery, fits in guide rod hole set on valve block 2 top and bottom flange and abutted flange 1, and fixes with nut below valve block 2 upper flange, support 16 is fixed on the top of three guide rods 5, and at the middle position of support 16, set center hole internal fixtion has regulatable 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 through valve gap 13 upper plane set by center hole, fit over the middle part of sphere inner face, the following of leading rod 15 is fixed on above leading rod base 22, and after the top of leading rod 15 passes from center hole set by regulatable magnetic force dish 9, a sucker 18 is paid in fixed installation, makes to pay sucker 18 and mutually sucks with regulatable magnetic force dish 9, jointly forms pretightening force device, paying sucker 18 is by being fixed with nut 27 in center hole set by himself, pays sucker 18 is fixed on leading rod 15 top by nut 27, on pair sucker 18, be fixed with the magnetic disk dust cover 10 with sealing gasket 17, enter in magnetic disk to prevent dust, magnetic post dish 25 in regulatable magnetic force dish 9 is made up of aluminum alloy material, in magnetic post dish 25, about 15 efficient permanent magnet posts 8 are furnished with in 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 adjusting bolt 19, effect permanent magnetism post 8 changes with the spacing of paying sucker 18, and magnet suction is just along with having changed, prior art magnetic post dish 25 adopts bakelite material to make, aluminium flake composition on pad below magnetic post dish 25, not only complex structure, and cost is high, below regulatable magnetic force dish 9, be provided with upper spring seat 20, on leading rod base 22, be provided with lower spring cup 23, on leading rod 15 between upper spring seat 20 and lower spring cup 23, the combination that three groups of damping springs, 14, three groups of springs are three groups of Different diameter springs is installed, between the leader casing 3 and support 16 of three guide rods 5, be separately installed with auxiliary return spring 4, the periphery of each auxiliary return spring 4 is respectively equipped with dust-proof sheath 6, dust-proof sheath 6 is made up of upper and lower two sleeve pipes, and casing running moves and is engaged in the endoporus of sleeve pipe, three cased lower ends to be separately fixed at above three leader casings 3 in jacket seat 24 endoporus fixed, the upper ends of three upper sleeve pipes are separately fixed in jacket seat 24 endoporus fixing below spring seat set by three supports 16, on leading rod 15, the two ends of three groups of damping springs 14, respectively and between upper spring seat 20 and lower spring cup 23, are respectively equipped with cushion pad 21, on three guide rods 5, between the two ends of three auxiliary return springs 4 and spring seat, be respectively equipped with damping pad 7,
Working procedure and working principle:
This valve is under equipment normal operation state, magnetic attraction (working pressure for setting) between regulatable magnetic force dish 9 and pair sucker 18, and in conjunction with the elastic force of three groups of damping springs 14, be delivered on valve gap 13 by leading rod 15, rely on the black box on valve gap 13 and the compound combination of seal groove above valve block 2, valve gap 13 is closed tightly, and maintenance equipment normally runs, when operating pressure in equipment is higher than the operating pressure set, in equipment, explosive gas is known from experience and is produced huge impact force instantaneously and opened by valve gap 13, valve gap 13 moves upward along three circular guide rods 5, and make to throw off with the regulatable magnetic force dish 9 on top on middle leading rod 15 and a pair sucker 18 by middle leading rod 15, 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, absorb the impact force of explosion gas, by the pressure in equipment after pressure release lower than the moment of opening detonation pressure power, under the rebounding force effect of the secondary spring 4 of valve gap 13 meeting on three groups of damping springs 14 and three guide rods 5, valve gap 13 is returned to origin-location rapidly, and by the magnetic attraction between regulatable magnetic force dish 9 and pair sucker 18, valve gap 13 is made to close tightly by the seal groove above the black box press-in valve block 2 on valve gap 13, restorer normally runs.
Claims (7)
1. a 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), regulatable magnetic force dish (9), pay sucker (18), support (16), it is characterized in that: the top and bottom of valve block (2) are provided with flange, pedestal periphery between two flanges is provided with radiating fin (11), flange below valve block (2) is furnished with abutted flange (1), on flange set by the top and bottom of valve block (2) and abutted flange (1), be provided with the guide rod hole of three circumference uniform distributions, the upper flange of valve block (2) is provided with seal channel, sphere combination seal (12) is installed in groove, sphere combination seal (12) is made up of Y type composite graphite sealing gasket and O type composite fiber sealing gasket, the upper flange internal orifice of valve block (2), with valve gap (13) below the cone place of matching be provided with the chamfering matched, the Flange Plane of valve block (2) is furnished with in the seal groove be provided with Y type composite graphite sealing gasket, O type composite fiber sealing gasket is furnished with in three seal grooves that its chamfering place is provided with, valve gap (13) is provided with the flange matched with the upper flange of valve block (2), valve gap (13) is located matching with valve block (2) upper flange plane below, be provided with the convex tendon coordinated with Y type composite graphite sealing gasket, locate matching with valve block (2) upper flange internal orifice chamfering, be provided with in two seal grooves and be furnished with O type composite fiber sealing gasket, 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 superposition sealing, valve gap (13) is in hollow half cone ball shape, be plane above, the solid welding of three leader casings (3) is on the periphery of valve gap (13), and the center line of three leader casings (3) and three guide rod holes is respectively on same vertical center line, valve gap (13) is pressed on the set sphere combination seal (12) of valve block (2) above, the lower end of three guide rods (5), be each passed through the center hole of three leader casings (3) set on valve gap (13) periphery, fit in valve block (2) top and bottom flange and the upper set guide rod hole of abutted flange (1), and fix with nut below valve block (2) upper flange, support (16) is fixed on the top of three guide rods (5), and the middle position in support (16), set center hole internal fixtion has regulatable 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) through valve gap (13) upper plane set by center hole, fit over the middle part of sphere inner face, the following of leading rod (15) is fixed on above leading rod base (22), after the top of leading rod (15) passes from the set center hole of regulatable magnetic force dish (9), sucker (18) is paid in fixed installation, make to pay sucker (18) mutually to suck with regulatable magnetic force dish (9), common formation pretightening force device, upper spring seat (20) is provided with below regulatable magnetic force dish (9), lower spring cup (23) is provided with on leading rod base (22), upper between upper spring seat (20) and lower spring cup (23) at leading rod (15), be provided with three groups of damping springs (14), three groups of springs are the combination of three groups of Different diameter springs, between the leader casing (3) and support (16) of three guide rods (5), be separately installed with auxiliary return spring (4), the periphery of each auxiliary return spring (4) is respectively equipped with dust-proof 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 lower spring cup (23), are respectively equipped with cushion pad (21); On three guide rods (5), between the two ends of three auxiliary return springs (4) and spring seat, 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, is characterized in that: dust-proof sheath (6) is made up of upper and lower two sleeve pipes, and casing running moves and is engaged in the endoporus of sleeve pipe; Three cased lower ends to be separately fixed at above three leader casings (3) in jacket seat (24) endoporus fixed, the upper ends of three upper sleeve pipes are separately fixed in jacket seat (24) endoporus fixing below the set spring seat of three supports (16).
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 self-lubricating bushing (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: on pair sucker (18), be fixed with the magnetic disk dust cover (10) with sealing gasket (17).
6. a kind of pipe-line system automatic on-off pressure-relief explosion-proof safety valve according to claim 1, is characterized in that: the magnetic post dish (25) in regulatable magnetic force dish (9) is made up of 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 the set center hole of pair sucker (18), be fixed with nut (27), pay sucker (18) is fixed on leading rod (15) top by nut (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310022393.1A CN103062459B (en) | 2013-01-19 | 2013-01-19 | Automatic opening and closing pressure-relief anti-explosion safety valve for pipeline system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310022393.1A CN103062459B (en) | 2013-01-19 | 2013-01-19 | Automatic opening and closing pressure-relief anti-explosion safety valve for pipeline system |
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| Publication Number | Publication Date |
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| CN103062459A CN103062459A (en) | 2013-04-24 |
| CN103062459B true CN103062459B (en) | 2015-03-04 |
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| CN201310022393.1A Active CN103062459B (en) | 2013-01-19 | 2013-01-19 | Automatic opening and closing pressure-relief anti-explosion safety valve for pipeline system |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244721B (en) * | 2013-05-09 | 2016-05-25 | 三一汽车制造有限公司 | Powder material tank safety valve, powder material tank and mixing plant |
| CN104645535A (en) * | 2013-11-17 | 2015-05-27 | 盐城市瑞恒电力石化设备制造有限公司 | Intelligent fire-fighting pressure-release explosion relief valve |
| CN104329567B (en) * | 2014-10-29 | 2017-02-15 | 刘复合 | Pressure relief system for long-distance pipeline |
| CN107345586A (en) * | 2017-06-16 | 2017-11-14 | 锐驰恩科技（大连）有限公司 | It is a kind of to open and close explosion-proof decompression device certainly |
| CN107345587A (en) * | 2017-06-16 | 2017-11-14 | 锐驰恩科技（大连）有限公司 | It is a kind of to open and close explosion-proof decompression device certainly |
| CN114033881A (en) * | 2021-09-15 | 2022-02-11 | 吉林省昱鑫机械制造有限公司 | Self-opening and self-closing type explosion door structure |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT311129B (en) * | 1970-02-13 | 1973-10-25 | Hoerbiger Ventilwerke Ag | Explosion relief valve |
| US5186198A (en) * | 1991-12-12 | 1993-02-16 | Penn Troy Maching Company, Inc. | Intake manifold relief valve |
| CN2642735Y (en) * | 2003-09-25 | 2004-09-22 | 朱耀平 | Leading and automatically operating type explosion-proof door |
| CN201057367Y (en) * | 2007-07-21 | 2008-05-07 | 谭旭 | Constant pressure device of automatic start and stop pipe system |
| CN101260946A (en) * | 2008-04-11 | 2008-09-10 | 张永志 | Negative-pressure superconductor automatic opening-closing vented explosion device |
| CN201896978U (en) * | 2010-11-15 | 2011-07-13 | 江苏神通阀门股份有限公司 | Automatic shutoff multi-level explosion relief valve with springs |
| CN203098981U (en) * | 2013-01-19 | 2013-07-31 | 盐城市瑞恒电力石化设备制造有限公司 | Automatic opening and closing pressure-relieving explosion-proof safety valve of pipeline system |
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2013
- 2013-01-19 CN CN201310022393.1A patent/CN103062459B/en active Active
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Address after: 224300 Jiangsu province Yancheng City Sheyang County town Hede Industrial Zone Daxing Road No. 6 (Yancheng City Ruiheng Electric Power Petrochemical Equipment Manufacturing Co. Ltd.) Patentee after: Yancheng City Ruiheng Electric Power Petrochemical Equipment Co. Address before: 224300 Jiangsu province Yancheng City Sheyang County town Hede Industrial Zone Daxing Road No. 6 (Yancheng City Ruiheng Electric Power Petrochemical Equipment Manufacturing Co. Ltd.) Patentee before: Yancheng Ruiheng Electric Power Petrification Equipment Manufacture Co., Ltd. |