CN208886101U - A kind of quick valve of band zero load balance - Google Patents
A kind of quick valve of band zero load balance Download PDFInfo
- Publication number
- CN208886101U CN208886101U CN201821806708.6U CN201821806708U CN208886101U CN 208886101 U CN208886101 U CN 208886101U CN 201821806708 U CN201821806708 U CN 201821806708U CN 208886101 U CN208886101 U CN 208886101U
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- China
- Prior art keywords
- valve
- piston
- chamber
- valve body
- valve seat
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- Withdrawn - After Issue
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- 238000007789 sealing Methods 0.000 claims description 18
- 230000008676 import Effects 0.000 claims 1
- 230000008901 benefit Effects 0.000 description 3
- 239000010720 hydraulic oil Substances 0.000 description 2
- 230000009474 immediate action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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Abstract
The utility model discloses a kind of quick valves of band zero load balance, including valve seat, valve body and valve deck, the valve seat and valve deck are located at the both ends of valve body, and medium inlet is equipped in the valve seat, is equipped with valve chamber in valve body, media outlet is equipped in valve deck, medium inlet and media outlet are connected to valve chamber, be equipped in the valve chamber of valve body with the matched piston of valve chamber, form seal chamber between piston valve body, piston, which is equipped with, can be sealed valve seat with the matched spool of valve seat, spool；Counter balance pocket is formed between valve seat and valve body, dummy piston is equipped in counter balance pocket, dummy piston can be mobile towards piston direction, second channel is additionally provided on the valve body, the both ends of second channel are connected to seal chamber and counter balance pocket respectively, first passage is additionally provided on the valve seat, the both ends of first passage are connected to counter balance pocket and medium inlet respectively.The seal pressure of spool and valve base chamber can be in suitable numerical value by the utility model, avoid the damage between spool and valve seat.
Description
Technical field
The utility model relates to valve technology fields, and in particular to a kind of quick valve of band zero load balance.
Background technique
In hypersonic wind tunnel, a kind of valve quickly opened is needed to be used for the starting of wind-tunnel, the use pressure of the valve
Generally between 3MPa~22.0MPa, pressure is different and different with the Mach number of test.Current quick valve is by valve
Core is placed on piston, is pushed spool to move to valve seat by blanket gas and is realized sealing；When needing to open, pistons end is acted on
Blanket gas released, the high pressure gas that is sealed pushes spool quickly to move to clack box is opened, realize the quick unlatching of valve,
The gas pressure sealed is higher, and the speed of valve opening is faster, and the gas pressure sealed is higher, the blanket gas needed
Pressure is also higher, then the pressure for the blanket gas that spool receives in zero load is bigger, the seal pressure between valve seat and spool
It is bigger, or even the damage allowable that spool and valve seat are caused than pressure beyond material, therefore one kind is needed in hyperbaric environment
How unloaded and load condition lower valve base seal pressure immediate action valve is coordinated.
Utility model content
Technical problem to be solved in the utility model is existing immediate action valve when being sealed to high pressure gas, valve
Core and the seal pressure that valve base chamber needs are larger, be easy to cause the damage of spool and valve seat, influence the air-tightness of valve body, and purpose exists
Valve seat can be reduced while guaranteeing the air-tightness between spool and valve seat in the quick valve for providing a kind of band zero load balance
Seal pressure between spool, and then avoid the damage of valve seat and spool.
The utility model is achieved through the following technical solutions:
A kind of quick valve of band zero load balance, including valve seat, valve body and valve deck, the valve seat and valve deck are located at valve
The both ends of body, the valve seat is interior to be equipped with medium inlet, valve chamber is equipped in valve body, valve deck is interior equipped with media outlet, and the medium enters
Mouthful and media outlet be connected to valve chamber, the valve chamber of the valve body is interior equipped with the matched piston of valve chamber, shape between piston valve body
At seal chamber, and seal chamber, close to valve deck, the piston, which is equipped with, can carry out valve seat with the matched spool of valve seat, spool
Sealing；Counter balance pocket is formed between the valve seat and valve body, is equipped with dummy piston in counter balance pocket, dummy piston can be towards piston side
To movement, second channel is additionally provided on the valve body, the both ends of second channel are connected to seal chamber and counter balance pocket respectively, the valve
It is additionally provided with first passage on seat, the both ends of first passage are connected to counter balance pocket and medium inlet respectively.
Further, counter balance pocket is divided into counter balance pocket A by the dummy piston and counter balance pocket B, the counter balance pocket A and second are logical
Road connection, the counter balance pocket B are connect with first passage.
Further, blanket gas inlet and outlet are additionally provided on the valve body, and blanket gas inlet and outlet are connected to seal chamber.
Further, cushion chamber is formed between the valve body and valve deck, and piston is located in cushion chamber, valve body and valve deck
The first sealing ring is equipped between piston.
Further, cushion cylinder is additionally provided on the valve body, the cushion cylinder is connected to cushion chamber.
Further, the second sealing ring is equipped between the valve body and valve seat and dummy piston.
The utility model compared with prior art, has the following advantages and benefits:
1, a kind of quick valve of band zero load balance of the utility model, it is close since counter balance pocket A is connected with seal chamber when unloaded
Gas is sealed when pushing valve core piston close to valve seat, dummy piston is also close to valve core piston, when spool contacts and close with valve seat
Feng Shi, dummy piston also contact with valve core piston and apply to it reversed thrust, with the sealing force of reduction effect and spool, from
And the seal pressure of spool and valve base chamber is made to be in suitable numerical value；
2, the quick valve of a kind of band zero load of the utility model balance, when being sealed to medium, the medium that is sealed from
The medium inlet of valve seat enters to counter balance pocket B, and the medium entered in counter balance pocket B can apply active force to dummy piston, and
Dummy piston applies active force to the blanket gas in counter balance pocket A again, since counter balance pocket A is connected to by second channel with seal chamber,
Enable the blanket gas in counter balance pocket A to generate active force to piston, further ensures the leakproofness between spool and valve seat.
Detailed description of the invention
Attached drawing described herein is used to provide to further understand the utility model embodiment, constitutes the one of the application
Part does not constitute the restriction to the utility model embodiment.In the accompanying drawings:
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the amplified structural schematic diagram in the portion the utility model A
Label and corresponding parts title in attached drawing:
1- valve seat, 2- spool, 3- piston, 4- valve body, 5- cushion cylinder, 6- cushion chamber, 7- valve deck, the disengaging of 8- blanket gas
Mouthful, 9- seal chamber, 10- first passage, 11- dummy piston, 12- counter balance pocket A, 13- counter balance pocket B, 14- second channel, 15- medium
Entrance, 16- media outlet.
Specific embodiment
For the purpose of this utility model, technical solution and advantage is more clearly understood, below with reference to embodiment and attached drawing,
The utility model is described in further detail, and the exemplary embodiment and its explanation of the utility model are only used for explaining this
Utility model is not intended to limit the scope of the present invention.
Embodiment
As shown in Figure 1 to Figure 2, a kind of quick valve of band zero load balance of the utility model, including valve seat 1, valve body 4 and valve
Lid 7 is equipped with medium inlet 15 in the valve seat 1, valve chamber is equipped in the valve body 4, is equipped with media outlet 16 in the valve deck 7,
The valve seat 1 and valve deck 7 are located at the both ends of valve body 4, and valve chamber is connected to medium inlet 15 and media outlet 16；It is described
Be equipped in the valve chamber of valve body 4 with the matched piston 3 of valve chamber, be sealed between the piston 3 and valve body 4 by O-ring seal,
Guarantee piston 3 when moving in valve body 4, there is certain air-tightness between piston 3 and valve body 4, the piston 3 and valve body 4 it
Between form seal chamber 9, and seal chamber 9 is close to valve deck 7, be additionally provided with blanket gas inlet and outlet 8 on the valve body 4, blanket gas into
Outlet 8 is connected to seal chamber 9, and blanket gas is entered in seal chamber 9 by blanket gas inlet and outlet 8, utilizes blanket gas
Push piston 3 mobile towards 1 direction of valve seat；The piston 3 is equipped with spool 2, is bolted between spool 2 and piston 3,
And spool 2 is towards 1 direction of valve seat, the inside of the valve seat 1 be equipped with the matched bellmouth of spool 2, when piston 3 is with movable valve plug
2 towards when the movement of 1 direction of valve seat, and the spherical surface of spool 2 can fit together with the conical surface of valve body 1, realize to the close of valve seat 1
Envelope；Counter balance pocket is formed between the valve seat 1 and valve body 4, is equipped in the counter balance pocket and is balanced dummy piston 11,11 sets of dummy piston
On valve seat 1, and dummy piston 11 can be mobile towards 3 direction of piston in counter balance pocket, the dummy piston 11 and valve body 4
Between be equipped with the second sealing ring, the second sealing ring be O-ring seal, the second sealing also is provided between dummy piston 11 and valve seat 1
Circle, the second sealing ring is also O-ring seal, when so that dummy piston 11 moving in counter balance pocket, can guarantee dummy piston 11
With the air-tightness between valve body 4 and valve seat 1；Counter balance pocket is divided into counter balance pocket A and counter balance pocket B by the dummy piston 3, described flat
Weighing apparatus chamber A is located at the outside of dummy piston 11, and counter balance pocket B is located at the inside of dummy piston 11, also sets inside the inner wall of the valve body 4
There is second channel 14, described 14 one end of second channel is connected to counter balance pocket A, and the other end is connected to seal chamber 9, so that from blanket gas
The blanket gas that inlet and outlet 8 enter can enter to counter balance pocket A by second channel 14, force dummy piston 3 towards 3 direction of piston
It is mobile；First passage 10 is additionally provided on the inner wall of the valve body 1,10 one end of first passage is connected to medium inlet 15, the other end
It is connected to counter balance pocket B, enables the medium in medium inlet 15 to enter to counter balance pocket B by first passage 10, to counter balance pocket
Interior dummy piston 11 generates active force, for power of some or all of counteracting in counter balance pocket A；The valve body 4 and valve
Cushion chamber 6 is formed between lid 7, and piston 3 is located in cushion chamber 6, is additionally provided with cushion cylinder 5 on the valve body 4, and buffer
Oil cylinder 5 is connected to cushion chamber 6, and when valve opening, piston 3 is mobile towards 7 direction of valve deck with movable valve plug 2, at this point, cushion cylinder
5, towards hydraulic oil is conveyed in cushion chamber 6, after hydraulic oil enters in cushion chamber 6, generate active force to piston, to effectively inhale
It accepts orders for repairs or processing the kinergety of plug, has the function that buffering.
The specific working principle of the utility model are as follows: when unloaded, imported and exported in 8 towards sealing ring and be passed through blanket gas, blanket gas
It entering in seal chamber 9, heap piston 3 is mobile towards 1 direction of valve seat, meanwhile, a part of blanket gas passes through second channel 14
Counter balance pocket A is entered to, the blanket gas entered in counter balance pocket A is mobile towards 3 direction of piston by heap dynamic balancing piston 11, and then makes
Piston driving spool 2 towards valve body 1 close to while, dummy piston 11 is also close towards 3 direction of piston, when spool 2 and valve
Seat 1 contacts and when sealing, and dummy piston 11 also applies reversed thrust with piston contact and to it, to reduce valve seat and spool
Sealing force so that the seal pressure of spool and valve base chamber is in suitable numerical value, so as to avoid to high-pressure medium into
When row sealing, the seal pressure between spool and valve seat is larger, and causes the damage of valve seat and spool；When sealing, sealed
Medium enters in the medium inlet 15 of valve seat 1, and the medium sealed is entered in counter balance pocket B by first passage 10, to flat
The piston 11 that weighs generates active force, for power of some or all of counteracting in counter balance pocket A, forces the sealing in counter balance pocket A
Gas is entered in seal chamber 9 by second channel 14, is acted on piston 3, is further increased the sealing between spool 2 and valve seat 1
Property.
Above-described specific embodiment, to the purpose of this utility model, technical scheme and beneficial effects carried out into
One step is described in detail, it should be understood that being not used to limit the foregoing is merely specific embodiment of the present utility model
Determine the protection scope of the utility model, within the spirit and principle of the utility model, any modification for being made equally is replaced
It changes, improve, should be included within the scope of protection of this utility model.
Claims (6)
1. a kind of quick valve of band zero load balance, including valve seat (1), valve body (4) and valve deck (7), the valve seat (1) and valve deck
(7) both ends of valve body (4) are located at, medium inlet (15) is equipped in the valve seat (1), valve chamber, valve deck is equipped in valve body (4)
(7) media outlet (16) are equipped in, the medium inlet (15) and media outlet are connected to valve chamber, which is characterized in that described
It is equipped in the valve chamber of valve body (4) with the matched piston of valve chamber (3), forms seal chamber (9) between piston (3) valve body (4), and is close
Chamber (9) are sealed close to valve deck (7), the piston (3) be equipped with valve seat (1) matched spool (2), spool (2) can be to valve seat
(1) it is sealed；Counter balance pocket is formed between the valve seat (1) and valve body (4), is equipped with dummy piston (11) in counter balance pocket, balance
Piston (11) can be mobile towards piston (3) direction, is additionally provided with second channel (14) on the valve body (4), second channel (14)
Both ends be connected to respectively with seal chamber (9) and counter balance pocket, be additionally provided with first passage (10), first passage on the valve seat (1)
(10) both ends are connected to counter balance pocket and medium inlet (15) respectively.
2. a kind of quick valve of band zero load balance according to claim 1, which is characterized in that the dummy piston (11) will
Counter balance pocket is divided into counter balance pocket A (12) and counter balance pocket B (13), and the counter balance pocket A (12) connect with second channel (14), the balance
Chamber B (13) is connect with first passage (10).
3. a kind of quick valve of band zero load balance according to claim 1, which is characterized in that also set on the valve body (4)
There is blanket gas to import and export (8), and blanket gas inlet and outlet (8) are connected to seal chamber (9).
4. a kind of quick valve of band zero load balance according to claim 1, which is characterized in that the valve body (4) and valve deck
(7) cushion chamber (6) are formed between, and piston (3) is located in cushion chamber (6), between valve body (4) and valve deck (7) and piston (3)
It is equipped with the first sealing ring.
5. a kind of quick valve of band zero load balance according to claim 4, which is characterized in that also set on the valve body (4)
Have cushion cylinder (5), the cushion cylinder (5) is connected to cushion chamber (6).
6. a kind of quick valve of band zero load balance according to claim 1, which is characterized in that the valve body (4) and valve seat
(1) the second sealing ring is equipped between dummy piston (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821806708.6U CN208886101U (en) | 2018-11-05 | 2018-11-05 | A kind of quick valve of band zero load balance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821806708.6U CN208886101U (en) | 2018-11-05 | 2018-11-05 | A kind of quick valve of band zero load balance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208886101U true CN208886101U (en) | 2019-05-21 |
Family
ID=66517771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821806708.6U Withdrawn - After Issue CN208886101U (en) | 2018-11-05 | 2018-11-05 | A kind of quick valve of band zero load balance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208886101U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058565A (en) * | 2018-11-05 | 2018-12-21 | 成都华科阀门制造有限公司 | A kind of novel quick valve with unloaded equilibrium function |
| CN117386836A (en) * | 2023-12-13 | 2024-01-12 | 中国空气动力研究与发展中心超高速空气动力研究所 | Quick response coaxial valve suitable for pulse wind tunnel and application method thereof |
-
2018
- 2018-11-05 CN CN201821806708.6U patent/CN208886101U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058565A (en) * | 2018-11-05 | 2018-12-21 | 成都华科阀门制造有限公司 | A kind of novel quick valve with unloaded equilibrium function |
| CN109058565B (en) * | 2018-11-05 | 2024-03-26 | 成都华科阀门制造有限公司 | Quick valve with no-load balancing function |
| CN117386836A (en) * | 2023-12-13 | 2024-01-12 | 中国空气动力研究与发展中心超高速空气动力研究所 | Quick response coaxial valve suitable for pulse wind tunnel and application method thereof |
| CN117386836B (en) * | 2023-12-13 | 2024-02-02 | 中国空气动力研究与发展中心超高速空气动力研究所 | Quick response coaxial valve suitable for pulse wind tunnel and application method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190521 Effective date of abandoning: 20240326 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190521 Effective date of abandoning: 20240326 |