CN109027396A - A kind of novel pneumatic membrane valve - Google Patents
A kind of novel pneumatic membrane valve Download PDFInfo
- Publication number
- CN109027396A CN109027396A CN201810973718.7A CN201810973718A CN109027396A CN 109027396 A CN109027396 A CN 109027396A CN 201810973718 A CN201810973718 A CN 201810973718A CN 109027396 A CN109027396 A CN 109027396A
- Authority
- CN
- China
- Prior art keywords
- valve
- spool
- valve body
- film
- pneumatic membrane
- 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.)
- Granted
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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/126—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
- Fluid-Driven Valves (AREA)
Abstract
The invention discloses a kind of novel pneumatic membrane valves, including valve body, are separately positioned on the inlet and outlet and valve seat of valve body two sides, the upper end of valve body has a gas chamber, which is successively divided into film room epicoele and film room cavity of resorption by film from top to bottom；Valve rod is provided through in the inside of valve body, the upper end of valve rod is provided with spring, and spring is placed in the inside of film room cavity of resorption and inconsistent with the lower surface of film, and the bottom of valve rod is connected with spool, the top of spool is equipped with spool shield, and spool shield is fixedly connected with the inner sidewall of valve body；The upper surface of valve seat is connected with valve plates by shaft; and spool is placed in the surface of valve plates; the other end of valve plates is connected with reset spring; the other end of reset spring is fixed on the inner sidewall of valve body; this kind of novel pneumatic membrane valve, is provided with spool protective case, avoids fluid and directly washes away spool; a possibility that spool is corroded by fluid scouring is reduced, the service life of the valve is extended.
Description
Technical field
The present invention relates to valve arrangement technical field, specially a kind of novel pneumatic membrane valve.
Background technique
The key technology of membrane valve is film spool, and the adjusting control of the precision of film spool and stability directly affect
The performance of pressure reducing valve.Such as China Patent Publication No. is that CN107448665A discloses a kind of Pneumatic diaphragm valve, including membrane cavity room,
The film of valve body, film, fixed core, spring, valve seat, push rod, valve rod, spool, balanced valve and blow valve, setting can hold
It changes places and moves and biggish stroke can be executed by film, flow control performance is good, stablizes qualitative and pressure degree of regulation
Height, high sensitivity, assembly technology is simple, easy to use.But in practical applications, fluid is during flowing through valve, stream
Body is directly flushed on spool, causes to wash away to the sealing surface of spool, is easy to cause valve to occur after closing poorly sealed
Situation.
So how to design a kind of novel pneumatic membrane valve, becoming us will currently be solved the problems, such as.
Summary of the invention
The purpose of the present invention is to provide a kind of novel pneumatic membrane valves, to solve mentioned above in the background art ask
Topic.
To achieve the above object, the invention provides the following technical scheme:
A kind of novel pneumatic membrane valve, including valve body, be separately positioned on the inlet and outlet of the valve body two sides with
And valve seat, the upper end of the valve body have a gas chamber, which is successively divided into film room epicoele and film by film from top to bottom
Room cavity of resorption；It is provided through valve rod in the inside of the valve body, the upper end of the valve rod is provided with spring, and the spring is placed in
The inside of film room cavity of resorption is simultaneously inconsistent with the lower surface of the film, and the bottom of the valve rod is connected with spool, the valve
The top of core is equipped with spool shield, and the spool shield is fixedly connected with the inner sidewall of the valve body；The valve seat
Upper surface is connected with valve plates by shaft, and the spool is placed in the surface of the valve plates, the valve plates it is another
End is connected with reset spring, and the other end of the reset spring is fixed on the inner sidewall of the valve body.
Further, the upper end of film room epicoele has pressure signal entrance, and the edge of the pressure signal entrance
Place is equipped with o-ring.
Further, stroke pointer is installed at the intermediate position of the valve rod, and the stroke pointer is solid by loop bar
Be scheduled on the valve rod, be correspondingly provided with stroke mark in the side of the stroke pointer, and the stroke mark be fixed on it is described
The inner sidewall of valve body.
Further, the opening passed through with one for the spool on the spool shield, it is equal in the two sides of the opening
It is provided with protective case, and the protective case is made of rubber material.
Further, the contact position of the valve plates and the valve seat is equipped with gasket.
Further, the upper end of the spool shield is equipped with airtight and watertight padding, and the airtight and watertight padding is placed in the valve rod
Two sides.
Compared with prior art, the beneficial effects of the present invention are:
1, this kind of novel pneumatic membrane valve is provided with spool protective case, avoids fluid and directly washes away spool, reduces valve
A possibility that core is corroded by fluid scouring extends the service life of the valve；
2, this kind of novel pneumatic membrane valve, film can be moved easily and can execute biggish row by film
Journey, flow control performance is good, with higher to stablize qualitative and sensitivity.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is the enlarged structure schematic diagram in the portion A0 in Fig. 1 of the present invention；
In figure: 1- valve body；2- airtight and watertight padding；3- water outlet；4- water inlet；5- stroke mark；6- stroke pointer；7- valve
Bar；8- spring；9- film room epicoele；10- film；11- film room cavity of resorption；12- pressure signal entrance；13- spool shield；14- is protected
Sheath；15- reset spring；16- valve plates；17- shaft；18- valve seat；19- spool；20- gasket；21- loop bar.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " on ", "lower", "inner", "outside" " end ", " front end ",
The orientation or positional relationship of the instructions such as " rear end ", " both ends ", " one end ", " other end " is orientation based on the figure or position
Relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must have
There is specific orientation, be constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " the
One ", " second " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation " " is set
Set/offer ", " connection ", etc., shall be understood in a broad sense, such as " connection ", may be a fixed connection, be also possible to detachably connect
It connects, or is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, intermediate matchmaker can also be passed through
Jie is indirectly connected, and can be the connection inside two elements.It for the ordinary skill in the art, can be with concrete condition
Understand the concrete meaning of above-mentioned term in the present invention.
The present invention provides a kind of technical solution referring to FIG. 1-2:
A kind of novel pneumatic membrane valve including valve body 1, is separately positioned on the water inlet 4 and water outlet of 1 two sides of valve body
3 and valve seat 18, the upper end of the valve body 1 has a gas chamber, which is successively divided into film room by film 10 from top to bottom
Epicoele 9 and film room cavity of resorption 11, for the film 10 as made by elastoplastic, elastic property is good, and film can be moved easily
And biggish stroke can be executed by film.The material such as natural rubber (NR) that the film 10 uses, butyronitrile rubber
Glue (NBR), SBR styrene butadiene rubbers (SBR), neoprene (CR), butadiene rubber (BR) or EP rubbers (EPDM)) or
Person's thermoplastic elastomer (TPE) (TPE), especially olefin-based thermoplastic elastomer (TPE-O), urethane base thermoplastic elastomer (TPE-
U), styrene body (TPE-S), thermoplastic polyester elastomer (TPE-E), thermoplastic polyester (TPC), thermoplastic co-polymer
Amide (TPE-A)；It is provided through valve rod 7 in the inside of the valve body 1, the upper end of the valve rod 7 is provided with spring 8, and institute
It states spring 8 and is placed in the inside of film room cavity of resorption 11 and inconsistent with the lower surface of the film 10, the bottom of the valve rod 7 connects
It is connected to spool 19, the top of the spool 19 is equipped with spool shield 13, and the spool shield 13 and the valve body 1 is interior
Side wall is fixedly connected；The upper surface of the valve seat 18 is connected with valve plates 16 by shaft 17, and the spool 19 be placed in it is described
The surface of valve plates 16, the other end of the valve plates 16 are connected with reset spring 15, the other end of the reset spring 15
It is fixed on the inner sidewall of the valve body 1, when valve opening, valve plates 16 are placed in the lower section of spool 19, can avoid fluid to valve
The direct impact of core 19, reduces a possibility that spool 19 is corroded by fluid scouring, extends the service life of the valve.
More specifically, the upper end of film room epicoele 9 has pressure signal entrance 12, and the pressure signal entrance 12
Edge be equipped with o-ring, the leakproofness of valve body 1 can be increased by o-ring.
More specifically, stroke pointer 6 is installed at the intermediate position of the valve rod 7, and the stroke pointer 6 passes through set
Bar 21 is fixed on the valve rod 7, is correspondingly provided with stroke mark 5, and the stroke mark 5 in the side of the stroke pointer 6
It is fixed on the inner sidewall of the valve body 1, by stroke pointer 6 and stroke mark 5 it can be observed how the stroke of film operation.
More specifically, the opening passed through with one for the spool 19 on the spool shield 13, in the opening
Two sides are provided with protective case 14, and the protective case 14 is made of rubber material, protective case 14 can buffer fluid to spool
19 impact.
More specifically, the valve plates 16 and the contact position of the valve seat 18 are equipped with gasket 20, prevent valve seat 18 from going out
The case where existing overflow.
More specifically, the upper end of the spool shield 13 is equipped with airtight and watertight padding 2, and the airtight and watertight padding 2 is placed in institute
The two sides of valve rod 7 are stated, the airtight and watertight padding 2 increases the leakproofness of valve body 1, prevents fluid from entering film room cavity of resorption 11.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of novel pneumatic membrane valve including valve body (1), is separately positioned on the water inlet (4) of the valve body (1) two sides and goes out
The mouth of a river (3) and valve seat (18), it is characterised in that: the upper end of the valve body (1) has a gas chamber, which passes through film (10)
It is successively divided into film room epicoele (9) and film room cavity of resorption (11) from top to bottom；Valve rod is provided through in the inside of the valve body (1)
(7), the upper end of the valve rod (7) is provided with spring (8), and the spring (8) is placed in the inside of film room cavity of resorption (11) simultaneously
Inconsistent with the lower surface of the film (10), the bottom of the valve rod (7) is connected with spool (19), the spool (19) it is upper
Portion is equipped with spool shield (13), and the spool shield (13) is fixedly connected with the inner sidewall of the valve body (1)；The valve
The upper surface of seat (18) is connected with valve plates (16) by shaft (17), and the spool (19) is placed in the valve plates (16)
The other end of surface, the valve plates (16) is connected with reset spring (15), and the other end of the reset spring (15) is fixed
Inner sidewall in the valve body (1).
2. a kind of novel pneumatic membrane valve according to claim 1, it is characterised in that: the upper end of film room epicoele (9)
With pressure signal entrance (12), and the edge of the pressure signal entrance (12) is equipped with o-ring.
3. a kind of novel pneumatic membrane valve according to claim 1, it is characterised in that: the middle part in the valve rod (7)
Position is equipped with stroke pointer (6), and the stroke pointer (6) is fixed on the valve rod (7) by loop bar (21), in the row
The side of Cheng Zhizhen (6) is correspondingly provided with stroke mark (5), and the stroke mark (5) is fixed on the inside of the valve body (1)
Wall.
4. a kind of novel pneumatic membrane valve according to claim 1, it is characterised in that: have on the spool shield (13)
There is an opening passed through for the spool (19), is provided with protective case (14) in the two sides of the opening, and the protective case
(14) it is made of rubber material.
5. a kind of novel pneumatic membrane valve according to claim 1, it is characterised in that: the valve plates (16) and the valve
The contact position of seat (18) is equipped with gasket (20).
6. a kind of novel pneumatic membrane valve according to claim 1, it is characterised in that: the spool shield (13) it is upper
End is equipped with airtight and watertight padding (2), and the airtight and watertight padding (2) is placed in the two sides of the valve rod (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810973718.7A CN109027396B (en) | 2018-08-24 | 2018-08-24 | A kind of novel pneumatic membrane valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810973718.7A CN109027396B (en) | 2018-08-24 | 2018-08-24 | A kind of novel pneumatic membrane valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109027396A true CN109027396A (en) | 2018-12-18 |
| CN109027396B CN109027396B (en) | 2019-10-29 |
Family
ID=64628364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810973718.7A Active CN109027396B (en) | 2018-08-24 | 2018-08-24 | A kind of novel pneumatic membrane valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109027396B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112302735A (en) * | 2020-10-26 | 2021-02-02 | 华北电力科学研究院有限责任公司 | Steam turbine main valve auxiliary system and control method thereof |
| CN112775121A (en) * | 2021-03-10 | 2021-05-11 | 杭州菲榭尔科技有限公司 | Automatic pneumatic film governing valve of clean formula |
| CN115247705A (en) * | 2022-06-13 | 2022-10-28 | 立信阀门集团有限公司 | Y-shaped slurry valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3960364A (en) * | 1974-08-01 | 1976-06-01 | Fisher Controls Company | High pressure tight shutoff valve seal |
| CN2190205Y (en) * | 1994-06-03 | 1995-02-22 | 曾祥炜 | Shutoff valve |
| CN2714867Y (en) * | 2004-08-02 | 2005-08-03 | 六巍 | Pipe rupture protective valve |
| CN203906838U (en) * | 2013-11-22 | 2014-10-29 | 四川大学 | Anti-scouring valve seal structure |
| CN204153285U (en) * | 2014-07-23 | 2015-02-11 | 常州市奥达电子有限公司 | Pneumatic diaphragm control valve |
-
2018
- 2018-08-24 CN CN201810973718.7A patent/CN109027396B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3960364A (en) * | 1974-08-01 | 1976-06-01 | Fisher Controls Company | High pressure tight shutoff valve seal |
| CN2190205Y (en) * | 1994-06-03 | 1995-02-22 | 曾祥炜 | Shutoff valve |
| CN2714867Y (en) * | 2004-08-02 | 2005-08-03 | 六巍 | Pipe rupture protective valve |
| CN203906838U (en) * | 2013-11-22 | 2014-10-29 | 四川大学 | Anti-scouring valve seal structure |
| CN204153285U (en) * | 2014-07-23 | 2015-02-11 | 常州市奥达电子有限公司 | Pneumatic diaphragm control valve |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112302735A (en) * | 2020-10-26 | 2021-02-02 | 华北电力科学研究院有限责任公司 | Steam turbine main valve auxiliary system and control method thereof |
| CN112302735B (en) * | 2020-10-26 | 2022-08-02 | 华北电力科学研究院有限责任公司 | Steam turbine main valve auxiliary system and control method thereof |
| CN112775121A (en) * | 2021-03-10 | 2021-05-11 | 杭州菲榭尔科技有限公司 | Automatic pneumatic film governing valve of clean formula |
| CN115247705A (en) * | 2022-06-13 | 2022-10-28 | 立信阀门集团有限公司 | Y-shaped slurry valve |
| CN115247705B (en) * | 2022-06-13 | 2024-10-11 | 立信阀门集团有限公司 | Y-shaped slurry valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109027396B (en) | 2019-10-29 |
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