CN107166068A - Slurry safety valve - Google Patents
Slurry safety valve Download PDFInfo
- Publication number
- CN107166068A CN107166068A CN201710361170.6A CN201710361170A CN107166068A CN 107166068 A CN107166068 A CN 107166068A CN 201710361170 A CN201710361170 A CN 201710361170A CN 107166068 A CN107166068 A CN 107166068A
- Authority
- CN
- China
- Prior art keywords
- bonnet
- guide rod
- valve body
- flap
- piston
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/40—Safety valves; Equalising valves, e.g. pressure relief valves with a fracturing member, e.g. fracturing diaphragm, glass, fusible joint
- F16K17/403—Safety valves; Equalising valves, e.g. pressure relief valves with a fracturing member, e.g. fracturing diaphragm, glass, fusible joint with a fracturing valve member
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The present invention relates to a kind of slurry safety valve, including valve body, flap, sealing surface of seat；Piston is mainly fixedly connected with below valve clack sealing surface, the piston is fixed on flap lower surface by locking nut and pad, outside piston face coordinates with valve body import vias inner walls dynamic sealing；Valve body top is by threaded connection bonnet, provided with the pilot hole overlapped with valve body import channel centerline inside bonnet, the flap back side is provided with guide rod, the guide rod periphery and the dynamic cooperation of bonnet pilot hole, in guide rod and bonnet upper end same position, transverse holes are set, shear pin is installed in the transverse holes, bumper ring is set between bonnet lower and guide rod, is more than the ring-shaped step of guide rod external diameter provided with diameter between valve clack sealing surface and guide rod.Set-pressure is set using the shearing force of shear pin, after overpressure relief, shear pin is changed, is reinstalled to use after flushing, assembling, sealing property is reliable, long product lifecycle, it is adaptable to which mud medium is used.
Description
Technical field
The invention belongs to valve field, more particularly, to a kind of safety valve.The present invention contains solid particle suitable for medium
The operating mode of mud.
Background technology
Existing spring loaded safety valve includes valve body, valve seat, flap, valve rod and spring etc., and valve seat is fixedly mounted in valve body
Chamber, valve seat upper end is provided with sealing surface of seat, and flap is arranged on above valve seat, and flap lower end, which is provided with, to form close with sealing surface of seat
The valve clack sealing surface of envelope, the power of spring-compressed formation acts on flap upper end by valve rod, so as to keep valve clack sealing surface to compress
Sealing surface of seat, forms sealing, it has the disadvantage：The use dielectric clean degree of this spring loaded safety valve requires high, when in medium
During containing solid particle, after valve opening, solid particle is easily clamped between valve clack sealing surface and sealing surface of seat, works as valve
During closing, solid particle is clipped between valve clack sealing surface and valve base sealing, makes valve production leakage, or even damage sealing pair, shadow
Ring product service life.
The content of the invention
For technological deficiency present in prior art, present invention offer one kind has to be made in containing solid particle medium
With good airproof performance, the slurry safety valve of service life length.
Technical scheme includes：Valve body and flap, body cavity are provided with the import and export passage of flow of media, valve body
Sealing surface of seat is provided between intake channel and exit passageway, sealing surface of seat is pyramidal structure, and flap bottom has and valve seat
The conical seal (contact) face of mutual cooperation；Piston is mainly fixedly connected with below valve clack sealing surface, the piston is by locking nut and lining
Pad is fixed on flap lower surface, and outside piston face coordinates with valve body import vias inner walls dynamic sealing；Valve body top is by being threadedly coupled
Provided with the pilot hole overlapped with valve body import channel centerline inside bonnet, bonnet, the flap back side is provided with guide rod, the guide rod
Periphery and the dynamic cooperation of bonnet pilot hole, set transverse holes in guide rod and bonnet upper end same position, pacify in the transverse holes
Shear pin is filled, bumper ring is set between bonnet lower and guide rod, is more than between valve clack sealing surface and guide rod provided with diameter
The ring-shaped step of guide rod external diameter.
Further, the piston and bumper ring, which are used, is formed with reverse V-shaped groove in elastomeric material, piston lower surface.
Further, the cylindrical place in valve body top is provided with bonnet, and the bonnet is the structure of falling tub, on bonnet top
Provided with passage.
The advantage of the invention is that：Double sealing structure is constituted using cone seal pair and rubber piston, shear pin is utilized
Shearing force setting set-pressure, after overpressure relief, change shear pin, rinse, assembling after reinstall to use, it is adaptable to mud
Slurry medium is used, and sealing property is reliable, long product lifecycle.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Embodiment
Slurry safety valve as shown in Figure 1, including valve body 1 and flap 5, the inner chamber of valve body 1 are provided with the import and export of flow of media
Passage, is provided with sealing surface of seat, sealing surface of seat is pyramidal structure, the bottom of flap 5 between the intake channel of valve body 1 and exit passageway
With the conical seal (contact) face cooperated with valve seat；Piston 3 is fixedly connected with below the sealing surface of flap 5, the piston 3 is by locking screw
Mother 2 and pad 4 are fixed on the lower surface of flap 5, and pad 4 is arranged between piston 3 and flap 5, locking nut 2 and the lower end of flap 5
Extension rod threaded connection, the periphery of piston 3 and the intake channel inwall dynamic sealing of valve body 1 coordinate, and both constitute first of sealing
It is secondary；The top of valve body 1 is by threaded connection bonnet 7, and the inside of bonnet 7 is provided with the pilot hole overlapped with the intake channel center line of valve body 1, valve
The back side of valve 5 is provided with guide rod 10, the periphery of guide rod 10 and the dynamic cooperation of the pilot hole of bonnet 7, in guide rod 10 and the upper end of bonnet 7
Same position sets transverse holes 8, installs shear pin in the transverse holes 8, the pilot hole inwall of bonnet 7 and the periphery of guide rod 10 it
Between provided with axially directed groove and the guide bulge of cooperating, prevent bonnet 7 from being rotated against with guide rod 10, the bottom of bonnet 7 and
Bumper ring 6 is set between guide rod 10, is more than the external diameter of guide rod 10 provided with diameter between the sealing surface of flap 5 and guide rod 10
Ring-shaped step, the ring-shaped step is contacted when flap 5 is opened with the lower surface of bumper ring 6, is reduced and is opened noise, on bumper ring 6
Vibration damping butterfly spring is installed between end face and bonnet 7, pooling feature is improved.
Piston 3 and bumper ring 6 use elastomeric material, and reverse V-shaped groove is formed with the lower surface of piston 3, in sealed states, pressure
Pressure medium struts V-groove and sealed with the passage of valve body 1 in force container.
The cylindrical place in the top of valve body 1 is provided with bonnet 9, and the bonnet 9 is the structure of falling tub, prevents dust from entering, on bonnet 9
Portion is provided with passage.
When valve body import channel media pressure reaches presetting set-pressure value, upward active force reaches below flap
To the shearing force of shear pin, shear pin disconnects, and flap upwardly opens carry out pressure release under the active force of intake channel medium, when
Medium release completion when, pull down the valve and cleaned, change shear pin, after the completion of assembling, be reinstalled in use equipment on.
Claims (3)
1. a kind of slurry safety valve, including valve body (1) and flap (5), import and export of valve body (1) inner chamber provided with flow of media are led to
Road, valve body (1) is provided with sealing surface of seat between intake channel and exit passageway, under sealing surface of seat is pyramidal structure, flap (5)
Portion has the conical seal (contact) face cooperated with valve seat；It is characterized in that piston (3) is fixedly connected with below flap (5) sealing surface,
The piston (3) is fixed on flap (5) lower surface, piston (3) periphery and valve body (1) import by locking nut (2) and pad (4)
Vias inner walls dynamic sealing coordinates；Valve body (1) top is provided with and valve body (1) import inside threaded connection bonnet (7), bonnet (7)
The pilot hole that channel centerline is overlapped, flap (5) back side is provided with guide rod (10), guide rod (10) periphery and bonnet (7)
Pilot hole is dynamic to be coordinated, and is set transverse holes (8) in guide rod (10) and bonnet (7) upper end same position, is pacified in the transverse holes (8)
Shear pin is filled, the axially directed groove of mutual cooperation is provided between bonnet (7) pilot hole inwall and guide rod (10) periphery and is led
To convex shoulder, bumper ring (6) is set between bonnet (7) bottom and guide rod (10), flap (5) sealing surface and guide rod (10) it
Between provided with diameter be more than guide rod (10) external diameter ring-shaped step, the ring-shaped step when flap (5) is opened and bumper ring (6) under
End contact, installs vibration damping butterfly spring between bumper ring (6) upper surface and bonnet (7).
2. slurry safety valve according to claim 1, it is characterized in that piston (3) and bumper ring (6) use elastomeric material,
Reverse V-shaped groove is formed with piston (3) lower surface.
3. slurry safety valve according to claim 1 or 2, it is characterized in that valve body (1) cylindrical place in top is provided with bonnet
(9), the bonnet (9) is the structure of falling tub, and passage is provided with bonnet (9) top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710361170.6A CN107166068A (en) | 2017-05-15 | 2017-05-15 | Slurry safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710361170.6A CN107166068A (en) | 2017-05-15 | 2017-05-15 | Slurry safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107166068A true CN107166068A (en) | 2017-09-15 |
Family
ID=59816255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710361170.6A Withdrawn CN107166068A (en) | 2017-05-15 | 2017-05-15 | Slurry safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107166068A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111677927A (en) * | 2020-06-16 | 2020-09-18 | 中国船舶工业集团公司第七0八研究所 | Overpressure relief device with controllable opening mode |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1285454C (en) * | 1986-11-17 | 1991-07-02 | Julian S. Taylor | Pressure relief valve |
| CN2898511Y (en) * | 2005-12-06 | 2007-05-09 | 邢鲁辉 | Safety valve of warehouse |
| US20130340843A1 (en) * | 2012-06-21 | 2013-12-26 | Richard T. Gilmer | Safety Valve |
| CN204127418U (en) * | 2014-08-14 | 2015-01-28 | 宝鸡市金心泵业制造有限责任公司 | Oil field water injection pump safety valve |
| CN205479558U (en) * | 2016-03-22 | 2016-08-17 | 镇江宝城注浆设备有限公司 | Shear type relief valve |
-
2017
- 2017-05-15 CN CN201710361170.6A patent/CN107166068A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1285454C (en) * | 1986-11-17 | 1991-07-02 | Julian S. Taylor | Pressure relief valve |
| CN2898511Y (en) * | 2005-12-06 | 2007-05-09 | 邢鲁辉 | Safety valve of warehouse |
| US20130340843A1 (en) * | 2012-06-21 | 2013-12-26 | Richard T. Gilmer | Safety Valve |
| CN204127418U (en) * | 2014-08-14 | 2015-01-28 | 宝鸡市金心泵业制造有限责任公司 | Oil field water injection pump safety valve |
| CN205479558U (en) * | 2016-03-22 | 2016-08-17 | 镇江宝城注浆设备有限公司 | Shear type relief valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111677927A (en) * | 2020-06-16 | 2020-09-18 | 中国船舶工业集团公司第七0八研究所 | Overpressure relief device with controllable opening mode |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170915 |
|
| WW01 | Invention patent application withdrawn after publication |