CN106989008B - A kind of groove type safety valve - Google Patents
A kind of groove type safety valve Download PDFInfo
- Publication number
- CN106989008B CN106989008B CN201710257909.9A CN201710257909A CN106989008B CN 106989008 B CN106989008 B CN 106989008B CN 201710257909 A CN201710257909 A CN 201710257909A CN 106989008 B CN106989008 B CN 106989008B
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- China
- Prior art keywords
- valve
- flat key
- key type
- valve plate
- groove
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
- F04B53/102—Disc valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
- F04B53/102—Disc valves
- F04B53/1032—Spring-actuated disc valves
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Safety Valves (AREA)
- Check Valves (AREA)
Abstract
The present invention relates to a kind of groove type safety valves, it is that a flat key type step is equipped on the surface of valve seat face body cavity, and the flat key type step has been recessed a flat key type groove, multiple high-pressure medium overcurrent runners are distributed in flat key type groove, which penetrates through the multiple low-pressure medium overcurrent runners being distributed in outside flat key type step through body cavity；One valve board assembly is located at valve body, includes a flat key type valve plate, the dual spring and bivalve set for acting on flat key type valve plate, and the valve board assembly and flat key type step are arranged in correspondence with to open simultaneously or close each high-pressure medium overcurrent runner.Intrinsic safety full valve uses flat key type valve plate, increases area of passage, velocity of medium is lower；Under the conditions of identical area of passage, flat key type valve plate stress is small, improves spring stress, so that the use reliability and service life of valve can be improved；In addition dual spring, dual-guiding structure are used, single spring stress can be made to reduce 1/2, and double guiding stationarities are more preferable.
Description
Technical field
The present invention relates to a kind of safety valves, more particularly to a kind of positive displacement pump groove type safety valve.
Background technique
Volume pump pressure is determined by outlet system load.To prevent in outlet pressure exception, volume pump pressure is anxious
Play increases the case where cause motor overload to damage, and setting safety valve is needed on positive displacement pump, by safety valve to reach pressure release
Purpose.
Traditional safety valve is usually to be made of valve body, valve seat, spool and spring etc., and the pressure in pump discharge reaches peace
When the pressure release value of full valve, spool stress is opened, and is made the inlet and outlet pipeline conducting of pump, is realized pressure release.But due to traditional spool by
The generally circular in cross section face of pressure surface, spool area is big, and institute is loaded big, and sealed cover ratio pressure is high.Meanwhile identical area of passage, spring by
Power is bigger, causes spool and spring to be easier impaired, to influence the Reliability of Microprocessor and service life of valve.
Summary of the invention
The technical problem to be solved by the present invention is to a kind of structurally reasonable, compact key is provided for state of the art
Groove profile safety valve, it reduces sealed cover ratio pressure, increases area of passage to improve spring stress, make valve by reducing spool stress
Use reliability improve, service life extend.
The technical scheme of the invention to solve the technical problem is: this groove type safety valve, include valve seat with
And it is located at the valve body on valve seat, the valve body is provided with the open inner cavity of oral area, it is characterized in that the valve seat face body cavity
Surface be equipped with a flat key type step, and the flat key type step has been recessed a groove, and multiple high pressures are distributed in groove
Medium overcurrent runner, the high-pressure medium overcurrent runner penetrate through the multiple low-pressure mediums being distributed in outside flat key type step through body cavity
Overcurrent runner；And a valve board assembly that can be moved up and down is equipped in the body cavity, which includes one flat
Bond type valve plate and acting on flat key type valve plate makes the flat key type valve plate have the spring to valve seat side mobile trend, the valve always
Board group part and flat key type step are arranged in correspondence with to open simultaneously or close each high-pressure medium overcurrent runner.
Further, the valve board assembly, which may also include, the valve pocket for being fixed on valve plate back, and the valve pocket and valve body are sliding
Move cooperation, and be equipped between valve body and be used to limit the position limiting structure that flat key type valve plate moves up stroke, the spring one end with
Valve body connection, the other end are connect with valve pocket.The valve pocket has guiding and position-limiting action well, and valve plate can be made in take-off or falling
Stable action, reliable in the process.
Further, the valve pocket of the valve board assembly and spring are two, symmetrical at flat key type valve plate back interval
Setting can make single spring stress reduce half in this way, and double guiding stationarities are more preferable.
And the body cavity may include having a rectangle chamber and Liang Ge cylindrical chamber, the flat key type valve
Plate is located in the rectangle chamber, two springs, they connect with valve body one respectively limit be located at two circles
In cylindrical chamber.
For the benefit of valve pocket positioning and guiding can be equipped with the circular groove of valve pocket positioning at the valve plate back side；Institute
The body cavity stated can be equipped with the circular trough of valve pocket positioning, and be made of the circular trough and described to be used to limit flat key type valve plate
Move up the position limiting structure of stroke.
The cylindrical chamber, circular trough and circular groove three are concentric.
The flat key type valve plate can be used bolt fastening with valve pocket or be welded and fixed.
The high-pressure medium overcurrent flow passage aperture is greater than low-pressure medium overcurrent flow passage aperture.
Compared with the prior art, the advantages of the present invention are as follows:
(1) flat key type valve plate is used, increases area of passage, velocity of medium is lower.
(2) under the conditions of identical area of passage, flat key type valve plate stress is small, improves spring stress, the use for improving valve can
By property and service life.
(3) dual spring, dual-guiding structure are used, single spring stress can be made to reduce 1/2, and double guiding stationarities are more preferable.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of the present invention.
Fig. 2 is the A-A diagrammatic cross-section of Fig. 1.
Fig. 3 is the schematic diagram for reflecting circular groove on valve plate.
Specific embodiment
The present invention will be described in further detail below with reference to the embodiments of the drawings.
In conjunction with shown in Fig. 1 to Fig. 3, the safety valve of the present embodiment signal mainly includes a valve body 5, a valve seat 1, Yi Jiyi
Valve board assembly, in which:
Valve body 5 is opening down to be located on valve seat 1, has the open inner cavity of an oral area, has a rectangle chamber in inner cavity
51 and Liang Ge cylindrical chamber 52, to cooperate the flat key type valve plate 2 and dual spring, bivalve nested structure in valve board assembly.Including another
Two circular troughs 53 are additionally provided in chamber, for the guiding and limit to bivalve set 3.
The closed combination corresponding with 5 oral area of valve body of valve seat 1, the upper surface of 5 inner cavity of face valve body are equipped with the flat of a protrusion
Bond type step 11, and it is formed with a groove 12 after 11 indent of flat key type step, which is a flat key type groove, with flat key
The shape of the peaceful bond type step 11 of type valve plate 2 is consistent.Multiple high-pressure mediums are distributed with evenly and at intervals in flat key type groove 12
Overcurrent runner 13, and multiple low-pressure medium overcurrent runners 14 are distributed on the valve seat outside step, high-pressure medium overcurrent runner 13
Low-pressure medium overcurrent runner 14 is penetrated through through body cavity.In addition, because the inflow of high-pressure medium overcurrent runner is high-pressure medium, it is low
What pressure medium overcurrent runner flowed into is the low-pressure medium after pressure release, therefore not according to the pressure for the medium for entering overcurrent runner
Together, the aperture design of general high voltage medium overcurrent runner is big at the aperture than low-pressure medium overcurrent runner.
Valve board assembly is located in 5 inner cavity of valve body, and be arranged in correspondence with the flat key type step 11 of valve seat to open simultaneously or
Each high-pressure medium overcurrent runner 13 is closed, it includes 2, two springs 4 of a valve plate and two valve pockets 3, in which:
Valve plate 2 is a flat key type valve plate, and lower surface can be close to the flat key type step surface on valve seat, and the two can closely match
Close the leakproofness to guarantee valve；On the upper surface of valve plate 2 interval be symmetrically provided with two match with valve pocket it is round recessed
Slot 21 (as shown in Figure 3) limits the bottom of two valve pockets 3 in two circular grooves 21 respectively, prevents valve pocket 3 opposite
Valve plate 2 slides.And the Correspondent cy linder shape chamber 52, circular trough 53 on the circular groove 21 and valve body above-mentioned are in same axis
On heart line.
Two valve pockets 3 are tightened together by bolt with valve plate 2 respectively, naturally it is also possible to the fixing means such as welding are used,
And the circular trough 53 on valve pocket 3 and valve body, which slides, to be cooperated, and the circular trough 53 is first is that play the work to 3 guide and limit of valve pocket
With to ensure that valve plate 2 will not glance off during opening and closing, to guarantee the leakproofness of valve；Second is that playing limit
The effect of 3 stroke of valve pocket (the namely maximum opening travel of valve plate) processed, i.e., the range that valve pocket 3 moves up is its end wall and circle
The end wall of shape slot is collided.
Two springs 4 are respectively provided between Liang Ge cylindrical chamber 52 and two valve pockets 3, one end and 5 phase of valve body of spring 4
Connection, the other end are connected with valve pocket 3, and two springs 4 act on valve plate 2 simultaneously, and the lower surface of valve plate 2 is made to be close to flat key type platform
Terrace keeps valve seal state.
In use, pump pressure sharply increases when the outlet pressure exception of positive displacement pump, make flat key type valve plate lower surface by
Pressure be greater than the spring force received of flat key type valve plate upper surface.At this point, flat key type valve plate take-off, safety valve is opened, and pumps interior high pressure
Area is connected to low-pressure area, so that pump pressure be made to decline.After pump pressure decline, flat key type valve plate is under spring force
It falls after rise, flat key type step surface is close in lower surface again, and safety valve is closed.
Intrinsic safety full valve substantially increases area of passage, and in identical area of passage due to using flat key type valve plate
Under the conditions of, valve plate stress also becomes smaller significantly；And dual spring effect can make single spring stress reduce 1/2, therefore it is relatively existing
There is technical pattern, the stress of spring can substantially reduce；And bivalve set guiding keeps stationarity more preferable, both can ensure that flat key type valve plate
With the sealing between flat key type step surface, and vibration can be reduced, improve the service life of valve.
And the foregoing is merely the preferred embodiment of the present invention, in addition to the present embodiment as shown in the figure other than, can also carry out not
It with remodeling or improves, without limiting to this.
Claims (9)
- The valve body that 1. a kind of groove type safety valve includes valve seat and is located on valve seat, the valve body is provided with oral area and opens wide Inner cavity, it is characterised in that: the surface of the valve seat face body cavity is equipped with a flat key type step, and the flat key type step It has been recessed a groove, multiple high-pressure medium overcurrent runners are distributed in groove, the high-pressure medium overcurrent runner is through in valve body Chamber penetrates through the multiple low-pressure medium overcurrent runners being distributed in outside flat key type step；And in the body cavity be equipped with one can on The valve board assembly of lower movement, the valve board assembly include a flat key type valve plate and act on flat key type valve plate and make the flat key type valve Plate has the spring to valve seat side mobile trend always, the valve board assembly and flat key type step be arranged in correspondence with to open simultaneously or Close each high-pressure medium overcurrent runner.
- 2. groove type safety valve as described in claim 1, it is characterised in that: the valve board assembly further includes being fixed on valve plate The valve pocket at back, the valve pocket and valve body sliding cooperate, and are equipped with to be used to limit flat key type valve plate between valve body and move up stroke Position limiting structure, the spring one end are connect with valve body, and the other end is connect with valve pocket.
- 3. groove type safety valve as claimed in claim 2, it is characterised in that: the valve pocket and spring of the valve board assembly are two It is a, it is symmetrical arranged at flat key type valve plate back interval.
- 4. groove type safety valve as claimed in claim 3, it is characterised in that: the body cavity includes a rectangle Chamber and Liang Ge cylindrical chamber, the flat key type valve plate are located in the rectangle chamber, two springs, it Connect with valve body one respectively limit be located in two cylindrical cavity rooms.
- 5. groove type safety valve as claimed in claim 2 or 3 or 4, it is characterised in that: the valve plate back side is fixed equipped with valve pocket The circular groove of position.
- 6. groove type safety valve as claimed in claim 5, it is characterised in that: the body cavity is additionally provided with valve pocket positioning and uses Circular trough, and be made of the circular trough and described to be used to limit the position limiting structure that flat key type valve plate moves up stroke.
- 7. groove type safety valve as claimed in claim 6, it is characterised in that: the cylindrical chamber, circular trough and circle are recessed Slot three is concentric.
- 8. groove type safety valve as claimed in claim 2, it is characterised in that: the flat key type valve plate and valve pocket uses bolt It fastens or is welded and fixed.
- 9. groove type safety valve as described in claim 1, it is characterised in that: the high-pressure medium overcurrent flow passage aperture is greater than Low-pressure medium overcurrent flow passage aperture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710257909.9A CN106989008B (en) | 2017-04-19 | 2017-04-19 | A kind of groove type safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710257909.9A CN106989008B (en) | 2017-04-19 | 2017-04-19 | A kind of groove type safety valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106989008A CN106989008A (en) | 2017-07-28 |
| CN106989008B true CN106989008B (en) | 2019-11-26 |
Family
ID=59415327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710257909.9A Active CN106989008B (en) | 2017-04-19 | 2017-04-19 | A kind of groove type safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106989008B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116538485B (en) * | 2023-05-16 | 2024-02-02 | 佛山市国立光电科技有限公司 | Energy-saving LED lamp with cooling structure |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4188174A (en) * | 1977-09-02 | 1980-02-12 | California Institute Of Technology | Wear resistant valve |
| GB2037947A (en) * | 1978-12-07 | 1980-07-16 | Zahnradfabrik Friedrichshafen | Quiet operating valves for fluids |
| CN2298390Y (en) * | 1997-04-24 | 1998-11-25 | 柳州第二空气压缩机总厂 | Safety valve |
| CN2450478Y (en) * | 2000-06-05 | 2001-09-26 | 石家庄四方阀门厂 | Reusable relief valve |
| CN2556388Y (en) * | 2002-06-17 | 2003-06-18 | 陈�峰 | Valve assembly of miniature air compressor |
| CN1601084A (en) * | 2004-10-15 | 2005-03-30 | 邱克敏 | Non-return valve |
| JP2008164025A (en) * | 2006-12-27 | 2008-07-17 | Toyota Motor Corp | Valve |
| CN201173323Y (en) * | 2008-04-08 | 2008-12-31 | 江苏神通阀门股份有限公司 | Explosion venting valve |
| CN206694238U (en) * | 2017-04-19 | 2017-12-01 | 宁波合力机泵股份有限公司 | A kind of groove type safety valve |
-
2017
- 2017-04-19 CN CN201710257909.9A patent/CN106989008B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4188174A (en) * | 1977-09-02 | 1980-02-12 | California Institute Of Technology | Wear resistant valve |
| GB2037947A (en) * | 1978-12-07 | 1980-07-16 | Zahnradfabrik Friedrichshafen | Quiet operating valves for fluids |
| CN2298390Y (en) * | 1997-04-24 | 1998-11-25 | 柳州第二空气压缩机总厂 | Safety valve |
| CN2450478Y (en) * | 2000-06-05 | 2001-09-26 | 石家庄四方阀门厂 | Reusable relief valve |
| CN2556388Y (en) * | 2002-06-17 | 2003-06-18 | 陈�峰 | Valve assembly of miniature air compressor |
| CN1601084A (en) * | 2004-10-15 | 2005-03-30 | 邱克敏 | Non-return valve |
| JP2008164025A (en) * | 2006-12-27 | 2008-07-17 | Toyota Motor Corp | Valve |
| CN201173323Y (en) * | 2008-04-08 | 2008-12-31 | 江苏神通阀门股份有限公司 | Explosion venting valve |
| CN206694238U (en) * | 2017-04-19 | 2017-12-01 | 宁波合力机泵股份有限公司 | A kind of groove type safety valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106989008A (en) | 2017-07-28 |
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