CN205938034U - Formula of relying on oneself bellows governing valve - Google Patents
Formula of relying on oneself bellows governing valve Download PDFInfo
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- CN205938034U CN205938034U CN201620760108.5U CN201620760108U CN205938034U CN 205938034 U CN205938034 U CN 205938034U CN 201620760108 U CN201620760108 U CN 201620760108U CN 205938034 U CN205938034 U CN 205938034U
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- 239000012528 membrane Substances 0.000 claims abstract description 54
- 238000007789 sealing Methods 0.000 claims abstract description 52
- 230000001105 regulatory effect Effects 0.000 claims abstract description 35
- 210000004907 gland Anatomy 0.000 claims description 12
- 239000000428 dust Substances 0.000 claims description 8
- 230000033228 biological regulation Effects 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 238000002788 crimping Methods 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 17
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 238000005493 welding type Methods 0.000 description 1
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Abstract
The utility model discloses a formula of relying on oneself bellows governing valve, including valve body, disk seat, supporting spring, valve rod, valve gap and membrane lid, still including set up inside the last bellows of valve body with set up the lower bellows in membrane lid inside, the upper and lower both ends of valve rod wear to establish respectively last bellows and bellows down inside and with last bellows and time bellows fixed connection, the valve rod, go up the bellows and down the bellows form case linkage combined mechanism, the inside balancing hole that is provided with of valve rod. This formula of relying on oneself bellows governing valve adopts two sections bellows structure, goes up the bellows and provides the sealing force for the case together with lower bellows, supporting spring. Preceding and the downstream pressure of bellows isolating valve when playing sealed effect, provides the sealing force with supporting spring together down. And go up the bellows and as diaphragm in the valve, be connected with stem seal, play sealed effect promptly, play the regulating action of diaphragm again. This governing valve is sealed effectual, can satisfy the operating mode needs of special medium.
Description
Technical field
The utility model is related to valve technology field, especially relates to a kind of self-operated type bellows regulating valve.
Background technology
Regulating valve is crucial equipment in the industrial production of modernization, and different operating modes selects different types of regulating valve,
Direct-operated regulator is one of which：Direct-operated regulator relies on and flows through the pressure of medium itself in valve, temperature is driven as the energy
Movable valve works automatically.Direct acting type and indirect acting type can be divided into：1, have elastic component inside direct acting type, using bullet
Property power reach the principle of balance with feedback signal.2, indirect acting type increased a pilot valve, through pilot valve to feedback signal
Amplification after pass through executing agency, drive main valve motion change valve opening.
Self-operated type bellows regulating valve is to add bellows in valve internal, makes valve can be suitably used for the operating mode of special media
Under.Due to special operation condition, very high to the sealing requirements of regulating valve, conventional self-operated type bellows regulating valve has filling-material structure,
Simultaneously because so that direct-operated regulator precise decreasing the problems such as bellows stiffness.
Chinese patent literature（The day for announcing：On 2 25th, 2015, notification number：CN 104373644A）Disclose bellows
Formula direct-operated regulator, including valve body, is provided with valve seat in described valve body, described valve seat is provided with valve core rod, on described valve core rod
It is provided with guide ring and bonnet, in described bonnet, is provided with filler, described bonnet, is provided with gland and pressing plate, described valve core rod
Upper being located at is provided with bellows between valve seat and guide ring, the end of described bellows is provided with bellows compressing member, described bellows
Compressing member is located between guide ring and valve core rod.
Although technique scheme also uses bellows structure, it will be generally above under 150 DEG C of operating mode to the greatest extent in high temperature
Pipe can be used to use, due to special operation condition, very high to the sealing requirements of regulating valve, and above-mentioned self-operated type bellows regulating valve has
Filling-material structure, simultaneously because so that direct-operated regulator precise decreasing the problems such as bellows stiffness.
Utility model content
The purpose of this utility model be in order to solve direct-operated regulator precision in prior art not high it is impossible to meet special
The problems such as operating mode of medium needs, and a kind of good sealing effect is provided, disclosure satisfy that the self-operated type that the operating mode of special media needs
Bellows regulating valve.
The utility model is realized its technical purpose and be employed technical scheme comprise that：A kind of self-operated type bellows regulating valve, bag
Include valve body, valve seat, support spring, valve rod, valve gap and membrane cover, also include being arranged on the upper bellows of valve inner and be arranged on film
Lower bellows within lid, the upper and lower ends of described valve rod be located in respectively bellows and lower bellows interior and with upper
Bellows is fixedly connected with lower bellows, and described valve rod, upper bellows and lower bellows form valve spool combined mechanism, institute
The stem internal stated is provided with balance pipe.This self-operated type bellows regulating valve, by carrying out brand-new design to regulating valve, adopts two
Section bellows fashion, by before lower bellows isolating valve with downstream pressure, while playing sealing function, it is because by pressure medium
Effect and sealing force is provided.Again through valve rod center balance pipe, reach pressure in valve, eliminate outer pressure pipe and decrease leakage
Point.And the upper end of valve rod is additionally provided with bellows, upper bellows uses as valve interior diaphragm, is connected with valve stem seal, that is, rise
To sealing function, play the adjustment effect of diaphragm, upper bellows and lower bellows are carried for core assembly together with support spring again
For sealing force.This self-operated type bellows regulating valve, by valve spool combined mechanism, good sealing effect, disclosure satisfy that special Jie
The operating mode of matter needs.
Preferably, described valve seat is connected with valve seal by valve base sealing pad, between described valve seat and valve gap
Pressure is provided with valve cage, and described lower bellows is pressed on the valve rod within valve cage by valve gap and the lower end of lower bellows and valve
Bar is fixedly connected.Said structure, valve rod is fixedly connected with lower bellows, by before lower bellows isolating valve with downstream pressure, rise
While to sealing function, it provides sealing force because of the effect by pressure medium.
Preferably, the lower end of described support spring is arranged in valve seat, the upper end of described support spring is passed through to set
Put the valve element gland compression in valve rod lower end, described valve element gland fastened by nut with valve rod, described valve element gland and
It is provided with seal spool pad at valve cage crimping, form soft sealing valve cored structure.Support spring, provides sealing jointly with lower bellows
Power, such structure make before lower bellows isolating valve with downstream pressure, while playing sealing function, it is because by pressure medium
Effect, provide sealing force together with support spring, then through valve rod center balance pipe, reach pressure in valve, eliminate outer pressure
Manage and decrease leakage point.Soft sealing valve cored structure, leakage point is few, good sealing effect.
Preferably, being provided with valve bonnet seal circle between the described upper end of lower bellows and valve body and valve gap, described
Valve bonnet seal circle and valve seat insert form ground floor sealing structure.Valve bonnet seal packing ring and valve seat insert formation ground floor are close
Seal structure, to realize completely cutting off the purpose that upstream pressure alters pressure.
Preferably, the upper end interference fit of described lower bellows has fairlead, described valve rod is upper and lower with fairlead
It is slidably socketed.Setting fairlead, plays the guide effect that valve rod is moved up and down.
Preferably, described membrane cover includes membrane cover and lower membrane cover, described lower membrane cover is wholely set with valve gap, described
The upper end of upper bellows be pressed on lower film lid by upper membrane cover and be fixedly connected by securing member, described upper bellows
Lower end is arranged on lower membrane cover inside and is connected with valve rod upper end by spring washer and nut.This regulating valve is by lower membrane cover and valve
Lid is wholely set so that the structure design of whole regulating valve is compact, and structure is simple, and the said structure of upper bellows both can play
Sealing function, plays the adjustment effect of diaphragm again, and upper bellows provides close together with lower bellows and support spring for valve element
Feng Li.
Preferably, described upper membrane cover be internally provided with adjustable mechanism, described adjustable mechanism include adjust spring,
Adjusting screw rod and locking nut, the lower end of described regulation spring is arranged on the inside of bellows lower end, described regulation bullet
The upper end of spring is provided with spring stop, and described spring stop is internally provided with plane bearing, and on described plane bearing, pressure sets
There is the bearing baffle with the setting of spring stop isoplanar, described adjusting screw rod is connected to the upper end of membrane cover and passes through locking screw
Female locking positioning, the lower end of described adjusting screw rod passes through upper membrane cover top pressure on bearing baffle.Said structure, using effect
Good, structure is simple, and setting is convenient, and adjustable mechanism achieves the regulation to valve opening, and to downstream pressure control.
Preferably, described upper bellows and lower membrane cover junction are provided with membrane cover sealing ring, form second layer sealing
Structure.The setting of second layer sealing structure, has prevented the leakage of medium after valve.
Preferably, being threaded with dust cover on upper membrane cover, described adjusting screw rod is arranged on inside dust cover.
The beneficial effects of the utility model are：This self-operated type bellows regulating valve, using two sections of bellows structures, following ripple
With downstream pressure before line pipe isolating valve, while playing sealing function, its because being acted on by pressure medium, together with support spring
Sealing force is provided.Again through valve rod center balance pipe, reach pressure in valve, eliminate outer pressure pipe and decrease leakage point.And on
Bellows, as valve interior diaphragm, is connected with valve stem seal, that is, play sealing function, plays the adjustment effect of diaphragm again.Upper ripple
Pipe provides sealing force for valve element together with lower bellows, support spring.This regulating valve good sealing effect, disclosure satisfy that special media
Operating mode need.
Brief description
Fig. 1 is a kind of structural representation of the utility model self-operated type bellows regulating valve；
Fig. 2 is a kind of full-gear structural representation of the utility model self-operated type bellows regulating valve；
Fig. 3 is a kind of full-shut position structural representation of the utility model self-operated type bellows regulating valve；
In figure：1st, valve body, 2, valve seat, 3, support spring, 4, valve rod, 5, valve gap, 6, membrane cover, 7, upper bellows, 8, lower ripple
Line pipe, 9, balance pipe, 10, valve base sealing pad, 11, valve cage, 12, valve element gland, 13, seal spool pad, 14, valve bonnet seal circle,
15th, adjustable mechanism, 16, fairlead, 17, upper membrane cover, 18, lower membrane cover, 19, securing member, 20, spring washer, 21, adjust spring,
22nd, adjusting screw rod, 23, locking nut, 24, spring stop, 25, plane bearing, 26, bearing baffle, 27, membrane cover sealing ring, 28,
Dust cover.
Specific embodiment
Below by specific embodiment and combine accompanying drawing the technical solution of the utility model is described in further detail.
Embodiment 1：
In the embodiment shown in fig. 1, a kind of self-operated type bellows regulating valve, including valve body 1, valve seat 2, support spring 3,
Valve rod 4, valve gap 5 and membrane cover 6, also include being arranged on the upper bellows 7 within valve body 1 and the lower ripple being arranged within membrane cover 6
Pipe 8, the upper and lower ends of valve rod 4 be located in respectively bellows 7 and lower bellows 8 internal and with upper bellows 7 and lower ripple
Pipe 8 is fixedly connected, and valve rod 4, upper bellows 7 and lower bellows 8 form valve spool combined mechanism, and valve rod 4 is internally provided with flat
Weighing apparatus hole 9.
Valve seat 2 is tightly connected with valve body 1 by valve base sealing pad 10, and between valve seat 2 and valve gap 5, pressure is provided with valve cage 11, under
Bellows 8 is pressed on the valve rod 4 within the valve cage 11 and lower end of lower bellows 8 by valve gap 5 and is fixedly connected with valve rod 4.
The lower end of support spring 3 is arranged in valve seat 2, and the upper end of support spring 3 is by being arranged on the valve element of valve rod 4 lower end
Gland 12 compresses, and valve element gland 12 is fastened by nut with valve rod 4, and it is close that valve element gland 12 and valve cage 11 place of crimping are provided with valve element
Packing 13, forms soft sealing valve cored structure.
It is provided with valve bonnet seal circle 14, valve bonnet seal circle 14 and valve between the upper end of lower bellows 8 and valve body 1 and valve gap 5
Seat sealing ring 10 forms ground floor sealing structure.Upper bellows 7 is provided with membrane cover sealing ring 27 with lower membrane cover 18 junction, is formed
Second layer sealing structure.The upper end interference fit of lower bellows 8 has fairlead 16, and valve rod 4 and fairlead 16 slide up and down socket.
Membrane cover 6 includes membrane cover 17 and lower membrane cover 18, and lower membrane cover 18 and valve gap 5 are wholely set, and the upper end of upper bellows 7 leads to
Cross membrane cover 17 to be pressed on lower membrane cover 18 and be fixedly connected by securing member 19, the lower end of upper bellows 7 is arranged on lower membrane cover
It is connected with valve rod 4 upper end inside 18 and by spring washer 20 and nut.
Upper membrane cover 17 be internally provided with adjustable mechanism 15, adjustable mechanism 15 include adjust spring 21, adjusting screw rod 22 and
Locking nut 23, the lower end adjusting spring 21 is arranged on the inside of bellows 7 lower end, and the upper end adjusting spring 21 is provided with bullet
Spring baffle plate 24, spring stop 24 is internally provided with plane bearing 25, and on plane bearing 25, pressure is provided with and spring stop 24 isoplanar
The bearing baffle 26 of setting, adjusting screw rod 22 is connected to the upper end of membrane cover 17 and passes through locking nut 23 locking positioning, adjusts
The lower end of screw rod 22 passes through upper membrane cover 17 top pressure on bearing baffle 26.Dust cover 28 is threaded with upper membrane cover 17, adjusts
Screw rod 22 is arranged on inside dust cover 28.
This self-operated type bellows regulating valve, valve seat 2 passes through the lower bellows 8 of valve gap 5 compression and valve cage 11 is fixed to valve body 1
On, centre is sealed with valve base sealing pad 10 and valve bonnet seal circle 14, constitutes ground floor sealing structure, presses before barrier valve
Power alters pressure；Seal spool pad 13 and valve element gland 12 are fastened on valve rod 4 with nut, form soft sealing valve cored structure；Fairlead
16, with the lower bellows 8 of interference fit incision, play guide effect；Valve rod 4 passes through lower bellows 8 and upper bellows 7 to form valve element
Linkage combined mechanism, provides effective seal form；Valve rod 4 is fixedly connected in lower bellows 8 with Type of Welding, with nut with upper
Bellows 7 connects, and realizes sealing by O-ring and bonded washer；Upper membrane cover 17 is tight with the upper bellows 7 of soket head cap screw compression
It is affixed on valve gap 5, increases membrane cover sealing ring and form second layer sealing, prevent medium leakage after valve；Adjusting screw rod 22 is with screw thread even
It is connected on membrane cover 17, withstands bearing baffle, 26 push down plane bearing 25 to spring stop 24, then are pushed down with spring stop 24
Adjust spring 21 on upper bellows 7, form adjustable mechanism, controlling opening of valve, control downstream pressure；Dust cover 28 is with screw thread
It is connected on membrane cover 17.
This self-operated type bellows regulating valve, realizes the standard-sized sheet of regulating valve or fully closed control using two sections of bellows structures
（See Fig. 2, Fig. 3）, with downstream pressure before following bellows isolating valve, while playing sealing function, it is because by pressure medium
Effect, provides sealing force together with support spring.Again through valve rod center balance pipe, reach pressure in valve, eliminate outer pressure pipe
And decrease leakage point.Above bellows, as valve interior diaphragm, is connected with valve stem seal again, that is, play sealing function, play again
The adjustment effect of diaphragm, and lower bellows, support spring provides sealing force for valve element together.
Claims (9)
1. a kind of self-operated type bellows regulating valve, including valve body（1）, valve seat（2）, support spring（3）, valve rod（4）, valve gap（5）
And membrane cover（6）It is characterised in that：Also include being arranged on valve body（1）Internal upper bellows（7）Be arranged on membrane cover（6）Internal
Lower bellows（8）, described valve rod（4）Upper and lower ends be located in bellows respectively（7）With lower bellows（8）Inside is simultaneously
And with upper bellows（7）With lower bellows（8）It is fixedly connected, described valve rod（4）, upper bellows（7）With lower bellows（8）Shape
Become valve spool combined mechanism, described valve rod（4）It is internally provided with balance pipe（9）.
2. a kind of self-operated type bellows regulating valve according to claim 1 it is characterised in that：Described valve seat（2）Pass through
Valve base sealing pad（10）With valve body（1）It is tightly connected, described valve seat（2）With valve gap（5）Between pressure be provided with valve cage（11）, described
Lower bellows（8）By valve gap（5）It is pressed on valve cage（11）Internal valve rod（4）Upper and lower bellows（8）Lower end with
Valve rod（4）It is fixedly connected.
3. a kind of self-operated type bellows regulating valve according to claim 2 it is characterised in that：Described support spring（3）
Lower end be arranged on valve seat（2）Interior, described support spring（3）Upper end by being arranged on valve rod（4）The valve element gland of lower end
（12）Compression, described valve element gland（12）With valve rod（4）Fastened by nut, described valve element gland（12）With valve cage（11）
It is provided with seal spool pad at crimping（13）, form soft sealing valve cored structure.
4. a kind of self-operated type bellows regulating valve according to claim 2 it is characterised in that：Described lower bellows（8）
Upper end and valve body（1）And valve gap（5）Between be provided with valve bonnet seal circle（14）, described valve bonnet seal circle（14）Close with valve seat
Packing（10）Form ground floor sealing structure.
5. a kind of self-operated type bellows regulating valve according to claim 1 it is characterised in that：Described lower bellows（8）
Upper end interference fit have fairlead（16）, described valve rod（4）With fairlead（16）Slide up and down socket.
6. a kind of self-operated type bellows regulating valve according to claim 1 it is characterised in that：Described membrane cover（6）Including
Upper membrane cover（17）With lower membrane cover（18）, described lower membrane cover（18）With valve gap（5）It is wholely set, described upper bellows（7）'s
Upper end is by upper membrane cover（17）It is pressed on lower membrane cover（18）Go up and pass through securing member（19）It is fixedly connected, described upper bellows
（7）Lower end be arranged on lower membrane cover（18）Internal and pass through spring washer（20）With nut and valve rod（4）Upper end connects.
7. a kind of self-operated type bellows regulating valve according to claim 6 it is characterised in that：Described upper membrane cover（17）'s
It is internally provided with adjustable mechanism（15）, described adjustable mechanism（15）Including regulation spring（21）, adjusting screw rod（22）And locking
Nut（23）, described regulation spring（21）Lower end be arranged on bellows（7）The inside of lower end, described regulation spring
（21）Upper end be provided with spring stop（24）, described spring stop（24）It is internally provided with plane bearing（25）, described
Plane bearing（25）Upper pressure is provided with and spring stop（24）The bearing baffle of isoplanar setting（26）, described adjusting screw rod（22）
It is connected to membrane cover（17）Upper end and pass through locking nut（23）Locking positioning, described adjusting screw rod（22）Lower end pass through
Upper membrane cover（17）Top pressure is in bearing baffle（26）On.
8. a kind of self-operated type bellows regulating valve according to claim 6 it is characterised in that：Described upper bellows（7）
With lower membrane cover（18）Junction is provided with membrane cover sealing ring（27）, form second layer sealing structure.
9. a kind of self-operated type bellows regulating valve according to claim 6 or 7 or 8 it is characterised in that：Upper membrane cover（17）On
It is threaded with dust cover（28）, described adjusting screw rod（22）It is arranged on dust cover（28）Internal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620760108.5U CN205938034U (en) | 2016-07-19 | 2016-07-19 | Formula of relying on oneself bellows governing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620760108.5U CN205938034U (en) | 2016-07-19 | 2016-07-19 | Formula of relying on oneself bellows governing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205938034U true CN205938034U (en) | 2017-02-08 |
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ID=57925607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620760108.5U Active CN205938034U (en) | 2016-07-19 | 2016-07-19 | Formula of relying on oneself bellows governing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205938034U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112943995A (en) * | 2021-03-25 | 2021-06-11 | 杭州金山仪表阀业有限公司 | Balanced type fluorine-lined self-operated regulating valve and regulating method thereof |
| CN115435124A (en) * | 2022-08-11 | 2022-12-06 | 杭州菲榭尔科技有限公司 | Self-operated nitrogen seals governing valve for pressure relief device |
-
2016
- 2016-07-19 CN CN201620760108.5U patent/CN205938034U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112943995A (en) * | 2021-03-25 | 2021-06-11 | 杭州金山仪表阀业有限公司 | Balanced type fluorine-lined self-operated regulating valve and regulating method thereof |
| CN115435124A (en) * | 2022-08-11 | 2022-12-06 | 杭州菲榭尔科技有限公司 | Self-operated nitrogen seals governing valve for pressure relief device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A self operated bellows regulating valve Effective date of registration: 20210121 Granted publication date: 20170208 Pledgee: Hangzhou High-tech Financing Guarantee Co.,Ltd. Pledgor: ZHEJIANG YONGSHENG TECHNOLOGY Co.,Ltd. Registration number: Y2021330000071 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20231123 Granted publication date: 20170208 Pledgee: Hangzhou High-tech Financing Guarantee Co.,Ltd. Pledgor: ZHEJIANG YONGSHENG TECHNOLOGY Co.,Ltd. Registration number: Y2021330000071 |