CN101865316B - Pulse safety valve - Google Patents
Pulse safety valve Download PDFInfo
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- CN101865316B CN101865316B CN2010102146531A CN201010214653A CN101865316B CN 101865316 B CN101865316 B CN 101865316B CN 2010102146531 A CN2010102146531 A CN 2010102146531A CN 201010214653 A CN201010214653 A CN 201010214653A CN 101865316 B CN101865316 B CN 101865316B
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- needle
- valve body
- liquid
- safety valve
- valve
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- 239000012530 fluid Substances 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 16
- 230000037361 pathway Effects 0.000 claims description 11
- 230000000694 effects Effects 0.000 claims description 9
- 230000001755 vocal effect Effects 0.000 claims description 8
- 239000007788 liquid Substances 0.000 abstract description 17
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000001802 infusion Methods 0.000 abstract 4
- 238000000034 method Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000004579 marble Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010417 needlework Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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Abstract
The invention provides a pulse safety valve, belonging to the technical field of machinery. The pulse safety valve solves the problem that the existing hydraulic safety valve fails to prompt and is difficult to adjust the size of a pressure limiting value under a pressure relief status. The pulse safety valve comprises a valve body, wherein the valve body is provided with a liquid inlet channel and a pressure relief channel; the liquid inlet channel is internally fixed with a valve seat with liquid infusion holes; the valve body is internally provided with a valve needle and a spring applied on the valve needle; the valve needle is arranged between the liquid inlet channel and the pressure relief channel; the front end of the valve needle can be inserted in the liquid infusion holes of the valve seat and block the liquid infusion holes under the acting force of the spring; and an acoustic structure is arranged between the valve needle and the valve body, and the acoustic structure can make a sound under fluid action when the valve needle overcomes the acting force of the spring under fluid pressure and drives the liquid infusion holes to be in a conducting state. The pulse safety valve has the advantages of being capable of generating sound, having a hint function and the like during pressure relief.
Description
Technical field
The invention belongs to field of mechanical technique, relate to hydraulic equipment, especially relate to a kind of pulse safety valve.
Background technique
In hydraulic system, if pressure is excessive and can cause the damage of component when surpassing limit value, thereby cause hydraulic system to break down, even bury potential safety hazard.For this reason, people carry out long-term exploration, have proposed various technological schemes.In hydraulic pipe line, pulse safety valve being installed is effective a kind of method.Thereby pulse safety valve is the pressure that when pressure surpasses limit value, can discharge hydraulic pipe line realizes protection.
For example; The Chinese patent document discloses a kind of air whistle safety valve [application number: CN94229914.0] of reporting to the police automatically; Its base and socket and on pressure regulating cover with being threaded, overcoat is loaded onto the protecting cover of peripheral tool through hole, the valve gap top is with the pressure regulating cover crimping of spring and tool sounder slotted eye and boss; Be plugged with the birdie sounder on its slotted eye, the valve gap on the valve port is glass marble, flare nut or flat board etc.In case through valve port, emptying pressure release, gas is created in the chimes of doom that all possibly hear in hundred meters through zufolo automatically for superpressure, gas, so safe and reliable.Be adapted to be mounted within on the various gas pipelines or with supporting uses such as pressure regulator valve, bell jar suction valve.The somebody has invented a kind of deadweight safety valve [application number: CN200420015636.5] that adopts steel ball as closure member; Cancelled the taper closure member; Self-aligning, the hydraulic pulsation formula safety valve basic structure of this steel ball oil sealing comprises: valve gap, spool; Pressure-adjusting spring and piston that valve core cavity is provided with, it is characterized in that: valve core cavity is provided with steel ball.
Therefore though such scheme has improved safe working stability to a certain extent, still exist following technical problem: 1, when being in the pressure release state, can't point out, be difficult to the potential faults of finding that in time system possibly exist, Security is relatively poor.2, be difficult to the voltage limiting value size is adjusted, also exist the loaded down with trivial details problem of operating process even if can realize pressure regulation, Applicable scope is less.3, sealing is relatively poor, is easy to occur the seepage situation, and spool is easy to occur cheap, and working stability is difficult to be protected.
Summary of the invention
The objective of the invention is provides a kind of and when pressure release, can sound to the problems referred to above, possesses the pulse safety valve of prompt facility.
For achieving the above object; The present invention has adopted following technical proposal: this pulse safety valve, comprise valve body, and this valve body has feed pathway and pressure release passage; It is characterized in that; Described feed pathway internal fixation has the valve seat with liquid-through hole, in valve body, is provided with needle and acts on the spring on the needle, and described needle is between feed pathway and pressure release passage; The front end of this needle can insert under acting force of the spring in the liquid-through hole of valve seat and with the liquid-through hole shutoff, is being provided with the vocal structure that when needle overcomes acting force of the spring and makes liquid-through hole be on state under hydrodynamic pressure, can under the fluid effect, sound between needle and the valve body.
Owing to be provided with vocal structure, when being in the pressure release state, can in time point out, thereby improve Security and the reliability used greatly.On the other hand, needle has good leading role when inserting in the liquid-through hole of valve seat, and needle is departed from, so good operating stability.
In above-mentioned pulse safety valve, described vocal structure comprises the bulge loop of being located on the needle, and the external diameter and the valve block internal diameter of this bulge loop adapt.
During work, highly pressurised liquid acts on and makes it to produce the active force that the liquid-through hole movement tendency is left in the generation of promotion needle on the needle.When this active force during less than the active force of spring, liquid-through hole is in closed state; When this active force during greater than the active force of spring, needle leaves liquid-through hole, highly pressurised liquid moment impact needle bulge loop, and promote needle once more and move, overflow from pressure release passage until liquid.When highly pressurised liquid impacts bulge loop, will produce sound with suggesting effect.After pressure release, the active force of spring is greater than the active force of highly pressurised liquid to needle, and at this moment, needle resets, and accomplishes the overflow of once pulsing.When high-pressure and hydraulic was able to overcome acting force of the spring to the active force of needle once more, pressure release once more so back and forth, realized the pulsed pressure release.On the other hand, bulge loop can effectively improve the stability that cooperates between needle and the valve body, makes needle to avoid occurring rocking swimmingly along moving axially.
In above-mentioned pulse safety valve, the front end of described needle has the conical surface that can form sealing with liquid-through hole.Conical surface has better sealing effect, and can effectively improve the stability of needle work.
In above-mentioned pulse safety valve, described pressure release passage is arranged on the middle part of valve body, and when the front end of needle during with the liquid-through hole shutoff, bulge loop is with the pressure release passage shutoff, and when liquid-through hole was on state, bulge loop separated with pressure release passage.
In above-mentioned pulse safety valve, described pressure release passage has several, and each pressure release passage is provided with on the same circumference.
In above-mentioned pulse safety valve, be provided with sealing configuration between described needle and the valve body.Owing to be provided with sealing configuration, can effectively improve the sealing between needle and the valve body, guarantee proper functioning.
In above-mentioned pulse safety valve, described sealing configuration comprise the circular groove that is arranged on the needle be arranged in the circular groove and with valve interior wall against inner seal ring.Circular groove can be realized the axially locating of inner seal ring on needle.
In above-mentioned pulse safety valve, described valve body is provided with the regulation structure that can adjust the acting force of the spring size.Owing to be provided with regulation structure, can adjust voltage limiting value easily, thereby improve the flexibility that the present invention uses greatly, enlarged using scope.
In above-mentioned pulse safety valve, described regulation structure comprise adjustable column with open the adjustment hole on valve body, described adjustable column is connected through worm structure with adjustment hole, on the end effect adjustable column of described spring, the other end acts on the needle.
When rotating adjustable column, adjustable column is moved axially with respect to valve body, thereby change the reduction length of spring, realize the adjusting of acting force of the spring.The length of spring is short more, and voltage limiting value is big more, and the length of spring is long more, and voltage limiting value is more little.
In above-mentioned pulse safety valve, described valve body arranged outside has connecting thread, is provided with outer groove in a side of connecting thread, in outer groove, is provided with exterior seal ring.
Compared with prior art, the advantage of this pulse safety valve is: 1, owing to be provided with vocal structure, when pressure release, can sound, possess prompt facility, improve the Security of using greatly.2, can regulate expansion Applicable scope easily to the voltage limiting value size.3, can guarantee the sealing of valve body, can both guarantee sealing when making pulse safety valve work in different voltage limiting values, improve working stability.
Description of drawings
Fig. 1 is the structural representation when being in cut-off state provided by the invention.
Fig. 2 is the structural representation when being in the pressure release state provided by the invention.
Among the figure, valve body 1, feed pathway 11, pressure release passage 12, adjustment hole 13, connecting thread 14, outer groove 15, valve seat 2, liquid-through hole 21, needle 3, bulge loop 31, conical surface 32, circular groove 33, spring 4, inner seal ring 5, adjustable column 6, exterior seal ring 7.
Embodiment
As illustrated in fig. 1 and 2, this pulse safety valve comprises valve body 1, and this valve body 1 has feed pathway 11 and pressure release passage 12.Feed pathway 11 internal fixation have the valve seat 2 with liquid-through hole 21, in valve body 1, are provided with needle 3 and act on the spring 4 on the needle 3.Needle 3 is between feed pathway 11 and pressure release passage 12.Valve body 1 arranged outside has connecting thread 14, is provided with outer groove 15 in a side of connecting thread 14, in outer groove 15, is provided with exterior seal ring 7.
The front end of needle 3 can insert under spring 4 active forces in the liquid-through hole 21 of valve seat 2 and with liquid-through hole 21 shutoff.The front end of needle 3 has the conical surface 32 that can form sealing with liquid-through hole 21.
Be provided with the vocal structure that when needle 3 overcomes spring 4 active forces and makes liquid-through hole 21 be on state under hydrodynamic pressure, can under the fluid effect, sound between needle 3 and the valve body 1.Vocal structure comprises the bulge loop of being located on the needle 3 31, and the external diameter of this bulge loop 31 and valve body 1 internal diameter adapt.Pressure release passage 12 is arranged on the middle part of valve body 1, and when the front end of needle 3 during with liquid-through hole 21 shutoff, bulge loop 31 is with pressure release passage 12 shutoff, and when liquid-through hole 21 was on state, bulge loop 31 was opened with pressure release passage in 12 minutes.Pressure release passage 12 has several, and each pressure release passage 12 is provided with on the same circumference.
Be provided with sealing configuration between needle 3 and the valve body 1.Sealing configuration comprise the circular groove that is arranged on the needle 3 33 be arranged in the circular groove 33 and with valve body 1 inwall against inner seal ring 5.
Valve body 1 is provided with the regulation structure that can adjust spring 4 amount of force.Regulation structure comprises adjustable column 6 and opens the adjustment hole 13 on valve body 1, and described adjustable column 6 and adjustment hole 13 are connected through worm structure, and on the end effect adjustable column 6 of described spring 4, the other end acts on the needle 3.
During work, highly pressurised liquid acts on and makes it to produce the active force that liquid-through hole 21 movement tendencies are left in 3 generations of promotion needle on the needle 3.When this active force during less than the active force of spring 4, liquid-through hole 21 is in closed state; When this active force during greater than the active force of spring 4, needle 3 leaves liquid-through hole 21, the bulge loop 31 of highly pressurised liquid moment impact needle, and promote needle 3 once more and move, overflow from pressure release passage 12 until liquid.When highly pressurised liquid impacts bulge loop 31, will produce sound with suggesting effect.After pressure release, the active force of spring 4 is greater than the active force of highly pressurised liquid to needle 3, and at this moment, needle 3 resets, and accomplishes the overflow of once pulsing.When high-pressure and hydraulic was able to overcome spring 4 active forces once more to the active force of needle 3, pressure release once more so back and forth, realized the pulsed pressure release.On the other hand, bulge loop 31 can effectively improve the stability that cooperates between needle 3 and the valve body 1, makes needle 3 to avoid occurring rocking swimmingly along moving axially.
Specific embodiment described herein only is that the present invention's spirit is illustrated.Person of ordinary skill in the field of the present invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although this paper has used terms such as valve body 1, feed pathway 11, pressure release passage 12, adjustment hole 13, connecting thread 14, outer groove 15, valve seat 2, liquid-through hole 21, needle 3, bulge loop 31, conical surface 32, circular groove 33, spring 4, inner seal ring 5, adjustable column 6, exterior seal ring 7 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present invention more easily; It all is contrary with spirit of the present invention being construed to any additional restriction to them.
Claims (9)
1. pulse safety valve; Comprise valve body (1); This valve body (1) has feed pathway (11) and pressure release passage (12); It is characterized in that; Described feed pathway (11) internal fixation has the have liquid-through hole valve seat (2) of (21), in valve body (1), is provided with needle (3) and acts on the spring (4) on the needle (3), and described needle (3) is positioned between feed pathway (11) and the pressure release passage (12); The front end of this needle (3) can insert under spring (4) active force in the liquid-through hole (21) of valve seat (2) and with liquid-through hole (21) shutoff, between needle (3) and valve body (1), is provided with the vocal structure that under hydrodynamic pressure, overcomes spring (4) active force and liquid-through hole (21) can be sounded when being on state when needle (3) under the fluid effect; Described vocal structure comprises the bulge loop of being located on the needle (3) (31), and external diameter of this bulge loop (31) and valve body (1) internal diameter adapt.
2. pulse safety valve according to claim 1 is characterized in that, the front end of described needle (3) has the conical surface (32) that can form sealing with liquid-through hole (21).
3. pulse safety valve according to claim 1 and 2; It is characterized in that; Described pressure release passage (12) is arranged on the middle part of valve body (1), and when the front end of needle (3) during with liquid-through hole (21) shutoff, bulge loop (31) is with pressure release passage (12) shutoff; And when liquid-through hole (21) when being on state, bulge loop (31) separates with pressure release passage (12).
4. pulse safety valve according to claim 3 is characterized in that, described pressure release passage (12) has several, and each pressure release passage (12) is provided with on the same circumference.
5. pulse safety valve according to claim 4 is characterized in that, is provided with sealing configuration between described needle (3) and the valve body (1).
6. pulse safety valve according to claim 5 is characterized in that, described sealing configuration comprise the circular groove (33) that is arranged on the needle (3) and be arranged in the circular groove (33) and with valve body (1) inwall against inner seal ring (5).
7. pulse safety valve according to claim 1 and 2 is characterized in that, described valve body (1) is provided with the regulation structure that can adjust spring (4) amount of force.
8. pulse safety valve according to claim 7; It is characterized in that; Described regulation structure comprises adjustable column (6) and opens the adjustment hole (13) on valve body (1); Described adjustable column (6) is connected through worm structure with adjustment hole (13), and on the end effect adjustable column (6) of described spring (4), the other end acts on the needle (3).
9. pulse safety valve according to claim 7 is characterized in that, described valve body (1) arranged outside has connecting thread (14), is provided with outer groove (15) in a side of connecting thread (14), in outer groove (15), is provided with exterior seal ring (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102146531A CN101865316B (en) | 2010-06-30 | 2010-06-30 | Pulse safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102146531A CN101865316B (en) | 2010-06-30 | 2010-06-30 | Pulse safety valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101865316A CN101865316A (en) | 2010-10-20 |
| CN101865316B true CN101865316B (en) | 2012-07-18 |
Family
ID=42957152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102146531A Expired - Fee Related CN101865316B (en) | 2010-06-30 | 2010-06-30 | Pulse safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101865316B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671329B (en) * | 2013-12-23 | 2016-09-07 | 台州巨力工具有限公司 | Open type hydraulic control valve |
| CN108278396B (en) * | 2018-01-30 | 2024-01-16 | 浙江大农实业股份有限公司 | Ultra-high pressure fluid safety valve |
| CN108443544A (en) * | 2018-04-12 | 2018-08-24 | 宜兴市锦辉铜材有限公司 | A kind of adjustable spring pressure releasing safety valve |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2815919A1 (en) * | 1978-04-13 | 1979-10-18 | Thyssen Industrie | PRESSURE RELIEF VALVE FOR HYDRAULIC REMOVAL ELEMENTS OF UNDERGROUND PIT OPERATION, PRESENTLY FOR MINING |
| CN88212234U (en) * | 1988-03-04 | 1988-11-23 | 奚长寿 | Adjustable temp. and pressure valve for pressure cooker |
| CN2204903Y (en) * | 1994-11-24 | 1995-08-09 | 段贤琪 | Automatic alarming safety valve with air whistle |
| CN2216179Y (en) * | 1995-01-12 | 1995-12-27 | 孙大龙 | Safety valve for control of fluid |
| JP2002005319A (en) * | 2000-06-16 | 2002-01-09 | Bosch Automotive Systems Corp | Pressure relief valve |
| CN201297413Y (en) * | 2008-11-17 | 2009-08-26 | 北京谊安医疗系统股份有限公司 | Air control valve and alarm system provided therewith |
| CN201322121Y (en) * | 2008-11-28 | 2009-10-07 | 蒋浩亮 | Pressure adjustable safety valve |
| CN201731130U (en) * | 2010-06-30 | 2011-02-02 | 张银根 | Pulse-type safety valve |
-
2010
- 2010-06-30 CN CN2010102146531A patent/CN101865316B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN101865316A (en) | 2010-10-20 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
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Owner name: TAIZHOU JULI TOOLS CO., LTD. Free format text: FORMER OWNER: ZHANG YINGEN Effective date: 20140410 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 317605 TAIZHOU, ZHEJIANG PROVINCE TO: 317608 TAIZHOU, ZHEJIANG PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20140410 Address after: Taizhou City, Zhejiang province 317608 addlupu town Yuhuan County Xuanmen industrial city Patentee after: Taizhou Juli Tool Co., Ltd. Address before: 317605 Taizhou city of Zhejiang province science and Technology Industrial Park of Yuhuan County town of Yuhuan County Wu paragraph Truman Patentee before: Zhang Yingen |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120718 Termination date: 20190630 |