CN205806509U - The throttling stop valve of multi-level control structure - Google Patents
The throttling stop valve of multi-level control structure Download PDFInfo
- Publication number
- CN205806509U CN205806509U CN201620780730.2U CN201620780730U CN205806509U CN 205806509 U CN205806509 U CN 205806509U CN 201620780730 U CN201620780730 U CN 201620780730U CN 205806509 U CN205806509 U CN 205806509U
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- China
- Prior art keywords
- valve
- spool
- core housing
- throttling
- composition
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- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses the throttling stop valve of a kind of multi-level control structure, bottom is secured by bolts in valve body bottom；Valve seat in valve body and and valve body between be provided with sealing gasket；Described valve core housing is positioned at valve body, and valve core housing arranges spool, and valve point is positioned at valve seat and corresponding to below spool；Valve gap is secured by bolts on valve body, arranges filler in valve gap, and filler was arranged above gland, and gland is outside is support, has valve stem nut above support；Spool bottom face is hard sealing pair together with valve core housing composition；Spool bottom face and valve seat, sealing gasket composition soft seal pair；Valve point and valve base cavity composition first order throttling, spool bottom and the second level throttling of valve core housing window composition；Window is offered on valve core housing.This utility model provides the throttling stop valve of a kind of multi-level control structure at this, improvement further to original structure and perfect, it is adaptable to natural gas transmission pipeline device in case of emergency or throttles during maintenance, ends, is vented.
Description
Technical field
This utility model relates to a kind of throttling stop valve, the throttling stop valve of a kind of multi-level control structure.
Background technology
Choke valve is by changing throttling cross section or chock length to control the valve of fluid flow.By choke valve and unidirectional
Valve parallel connection is then combined into one-way throttle valve.Choke valve and one-way throttle valve are easy flow control valves, at dosing pump hydraulic pressure
In system, choke valve and overflow valve coordinate, and can form three kinds of Metering Flow Control Circuits, i.e. in-line Metering Flow Control Circuits, oil return line
Metering Flow Control Circuits and bypass throttling speed governing system.Choke valve does not has flow negative feedback function, it is impossible to compensates and is changed institute by load
The speed caused is unstable, is typically only used for load and changes little or less demanding to speed stability occasion.
For preferably meeting the use requirement of the throttling cutoff function such as Gao Long-distance Transmission Pipeline yard, circuit valve chamber, natural
Letter shoot line apparatus in case of emergency or throttles, ends, is vented during maintenance；The stability that rate-of flow is controlled by its valve
The highest with high efficiency, the throttling of existing old-fashioned needle regulator and sealing structural integrity, in use for some time, sealing surface
Damage restriction effect can substantially reduce.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, provides the throttling of a kind of multi-level control structure at this
Stop valve, overcomes the throttling of existing old-fashioned needle regulator and seals structural integrity, and in use for some time, sealing surface damages
The shortcoming that restriction effect can substantially reduce.
This utility model is achieved in that the throttling stop valve constructing a kind of multi-level control structure, it is characterised in that: bag
Include bottom, valve point, valve seat, sealing gasket, spool, valve core housing, valve body, locking wire ring, valve gap, filler, gland, support, valve
Stem nut, handwheel, valve rod, pump nozzle；Bottom is secured by bolts in valve body bottom；Valve seat in valve body and and valve body between
It is provided with sealing gasket；Described valve core housing is positioned at valve body, and valve core housing arranges spool, and valve point is positioned at valve seat and corresponding under spool
Side；Valve gap is secured by bolts on valve body, arranges filler in valve gap, and filler was arranged above gland, outside gland
For support, above support, there is valve stem nut；Spool bottom face is hard sealing pair together with valve core housing composition；Spool bottom face and valve
The composition soft seal of seat, sealing gasket is secondary；Valve point and valve base cavity composition first order throttling, spool bottom and valve core housing window composition the
Two-step throttle；Offering window on valve core housing, its window area can guarantee that negotiability.
Throttling stop valve according to multi-level control structure described in the utility model, it is characterised in that: spool bottom face and valve
The hardest sealing pair of core retainer plate composition, hard sealing surface weld deposit stellite cobalt-base alloys.
Throttling stop valve according to multi-level control structure described in the utility model, it is characterised in that: spool is plunger piston type knot
Structure, offers balance pipe in the middle part of it, make spool stress balance in valve core housing inwall moves up and down, open and close light.
Throttling stop valve according to multi-level control structure described in the utility model, it is characterised in that: spool is provided with twice O
Type circle and storage, ash pit, spool moves up and down in valve pocket and realizes automatic discharge, and spool outer ring and valve core housing inwall ensure at any time
Cleaning.
Throttling stop valve according to multi-level control structure described in the utility model, it is characterised in that: on valve gap at sealing,
Packing seat and pump nozzle are added with RUBBER O RunddichtringO, and configure in polytetrafluoroethylene packing.
The utility model has the advantage of: this utility model provides the throttling stop valve of a kind of multi-level control structure at this,
Improvement further to original structure and perfect, it is adaptable to natural gas transmission pipeline device in case of emergency or throttling during maintenance, cuts
Only, emptying.This valve mechanism uses throttling three class control, seals and separates with throttleng surface.Achieve what a kind of rate-of flow controlled
Stability and high efficiency.Improve the throttling of old-fashioned needle regulator and seal structural integrity, in use for some time, sealing
The shortcoming that restriction effect can substantially reduce is damaged in face.
Accompanying drawing explanation
Fig. 1 is that this utility model implements structural representation.
Wherein: 1, bottom, 2, valve point, 3, valve seat, 4, sealing gasket, 5, spool, 6, valve core housing, 7, valve body, 8, locking wire ring,
9, valve gap, 10, filler, 11, gland, 12, support, 13, valve stem nut, 14, handwheel, 15, valve rod, 16, pump nozzle.
Detailed description of the invention
Below in conjunction with accompanying drawing 1, this utility model is described in detail, the technical scheme in the embodiment of the present invention is entered
Row clearly and completely describes, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole realities
Execute example.Based on the embodiment in this utility model, those of ordinary skill in the art are institute under not making creative work premise
The every other embodiment obtained, broadly falls into the scope of this utility model protection.
This utility model provides the throttling stop valve of a kind of multi-level control structure by improving, as it is shown in figure 1, can be according to
Following manner is practiced；Including bottom 1, valve point 2, valve seat 3, sealing gasket 4, spool 5, valve core housing 6, valve body 7, locking wire ring 8,
Valve gap 9, filler 10, gland 11, support 12, valve stem nut 13, handwheel 14, valve rod 15, pump nozzle 16；Bottom 1 passes through spiral shell
Bolt is fixed on valve body 7 bottom；Valve seat 3 in valve body 7 and and valve body 7 between be provided with sealing gasket 4；Described valve core housing 6 is positioned at
In valve body 7, valve core housing 6 arranges spool 5, and valve point 2 is positioned at valve seat 3 and corresponding to below spool 5；Valve gap 9 is bolted
On valve body 7, arranging filler 10 in valve gap 9, filler 10 was arranged above gland 11, and gland 11 is outside is support 12,
Valve stem nut 13 is had above support 12；Spool 5 bottom face form with valve core housing 6 together with hard sealing pair；Spool 5 bottom face and valve seat
3, sealing gasket 4 forms soft seal pair；Valve point 2 and the composition first order throttling of valve seat 3 inner chamber, spool 5 bottom and valve core housing 6 group of windows
Become second level throttling；Offering window on valve core housing 6, its window area can guarantee that negotiability.
The throttling stop valve of described multi-level control structure:
1, spool bottom face hard sealing pair, hard sealing surface weld deposit stellite cobalt-base alloys together with valve core housing composition；
2, spool bottom face and valve seat, sealing gasket composition soft seal pair；
3, valve point and valve base cavity composition first order throttling, spool bottom and the second level throttling of valve core housing window composition；
4, offering window on valve core housing, its window area can guarantee that negotiability.Spool, under valve rod castering action, hides
Covering the change of how many formation flows of window area, throttleng surface is window edge；
5, spool is plunger piston type structure, offers balance pipe in the middle part of it, makes spool stress in valve core housing inwall moves up and down
Balance, opens and closes light；
6, spool is provided with twice O and storage, ash pit, and spool moves up and down in valve pocket and realizes automatic discharge, valve
Core outer ring and valve core housing inwall ensure cleaning at any time；
7, spool storage, the setting of ash pit, reduce the contact area of spool and valve core housing, reduce frictional resistance, and right
Second sealing ring provides good working condition；
8, for ensureing that packing seal does not leaks outside, respectively on valve gap at sealing, Packing seat and pump nozzle close added with RUBBER O type
Seal, and can guarantee that sealing property requirement in polytetrafluoroethylene packing configuration to ensure to compress to throw away in the case of gland is delivered to.
Operation principle:
(1) closed mode: the hard seal face of spool is pressed on the end face of valve seat the hardest sealing pair of formation, seals simultaneously
Pad is close to spool bottom face and forms second soft seal pair.Hard soft pair of matter sealing pair ensure that gas medium zero leakage.
(2) throttle: move on spool, valve opening, fluid enters valve base cavity by first order throttling and passes through valve again
Throttle orifice on core retainer plate flows out.In throttling process, the erosion of medium is concentrated mainly on the throttling on first order throttling and valve core housing
Hole, protects spool from face, and valve base sealing is secondary.
(3) full-gear: when moving to upper end at valve core housing fluting on spool, pressure reduces, and resistance is relatively in valve for fluid
Little, shorten the time, improve effect.
Performance characteristics:
(1) spool, valve seat use hard soft pair of matter sealing pair, and zero can met under high-pressure gas medium working condition lets out
Leakage, seals reliable, and airflow is washed away, erosion resistant.
(2) throttle point is completely separable with sealing position, avoids directly washing away of medium, is delayed service life.
(3) spool bottom valve point and cage type Analysis of Nested Design, medium inertia force when slow down soft seal subtask at valve seat, make soft
Sealing pair is difficult to pull, and valve is not affected by the medium flow direction, can meet the positive direction flowing of medium under characteristic working condition.
(4) spool is provided with twice O and storage, ash pit, and spool moves up and down in valve core housing and realizes automatic discharge.
(5) spool offers balance pipe, opens and closes moment little, opens light and flexible.
(6) equipped with pump nozzle on valve rod, under the airtight and watertight padding effect with O, it is ensured that do not reveal at valve rod and
Extend valve rod service life.
(7) hard soft pair of matter sealing pair, plunger shape spool, the fluting of valve core housing makes this valve have throttling simultaneously, end, be vented
Deng several functions.
(8) change cage type set and valve seat construction geomery, make spool bottom and cage type set, the sealing gasket of valve base chamber composition
Soft seal is secondary, and stress condition is three corresponding force, it is ensured that seal zero leakage, and meets forward and reverse stream of medium under the conditions of special operation condition
Dynamic and that soft seal is secondary service life.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses this practicality new
Type.Multiple amendment to these embodiments will be apparent from for those skilled in the art, is determined herein
The General Principle of justice can realize in the case of without departing from spirit or scope of the present utility model in other embodiments.Cause
This, this utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (5)
1. the throttling stop valve of a multi-level control structure, it is characterised in that: include bottom (1), valve point (2), valve seat (3), close
Packing (4), spool (5), valve core housing (6), valve body (7), locking wire ring (8), valve gap (9), filler (10), gland (11),
Support (12), valve stem nut (13), handwheel (14), valve rod (15), pump nozzle (16)；Bottom (1) is secured by bolts in valve body
(7) bottom；Valve seat (3) be positioned at valve body (7) and and valve body (7) between be provided with sealing gasket (4)；Described valve core housing (6) is positioned at
In valve body (7), valve core housing (6) arranges spool (5), and valve point (2) is positioned at valve seat (3) and corresponding to spool (5) lower section；Valve gap
(9) being secured by bolts on valve body (7), arrange filler (10) in valve gap (9), filler (10) was arranged above gland
(11), gland (11) is outside is support (12), and there is valve stem nut (13) support (12) top；Spool (5) bottom face and valve
The hardest sealing pair of core retainer plate (6) composition；Spool (5) bottom face and valve seat (3), sealing gasket (4) composition soft seal pair；Valve point (2)
With the composition first order throttling of valve seat (3) inner chamber, spool (5) bottom and the second level throttling of valve core housing (6) window composition；Valve core housing
(6) offering window on, its window area can guarantee that negotiability.
The throttling stop valve of multi-level control structure the most according to claim 1, it is characterised in that: spool (5) bottom face and valve
The hardest sealing pair of core retainer plate (6) composition, hard sealing surface weld deposit stellite cobalt-base alloys.
The throttling stop valve of multi-level control structure the most according to claim 1, it is characterised in that: spool (5) is plunger piston type knot
Structure, offers balance pipe in the middle part of it, make spool stress balance in valve core housing inwall moves up and down, open and close light.
The throttling stop valve of multi-level control structure the most according to claim 1, it is characterised in that: spool (5) is provided with twice O
Type circle and storage, ash pit, spool moves up and down in valve pocket and realizes automatic discharge, and spool outer ring and valve core housing inwall ensure at any time
Cleaning.
The throttling stop valve of multi-level control structure the most according to claim 1, it is characterised in that: at the upper sealing of valve gap (9),
Packing seat and pump nozzle are added with RUBBER O RunddichtringO, and configure in polytetrafluoroethylene packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620780730.2U CN205806509U (en) | 2016-07-25 | 2016-07-25 | The throttling stop valve of multi-level control structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620780730.2U CN205806509U (en) | 2016-07-25 | 2016-07-25 | The throttling stop valve of multi-level control structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205806509U true CN205806509U (en) | 2016-12-14 |
Family
ID=57509524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620780730.2U Expired - Fee Related CN205806509U (en) | 2016-07-25 | 2016-07-25 | The throttling stop valve of multi-level control structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205806509U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107542960A (en) * | 2017-10-11 | 2018-01-05 | 天津百利展发集团有限公司 | One kind fine setting nodal pattern throttling stop valve valve core structure |
| CN109140010A (en) * | 2018-09-29 | 2019-01-04 | 乐山市前沿油气设备制造有限公司 | Throttling stop valve |
| CN110118276A (en) * | 2019-05-31 | 2019-08-13 | 孙灿 | A kind of self-purification type valve |
| CN110195783A (en) * | 2019-06-04 | 2019-09-03 | 四川长仪油气集输设备股份有限公司 | Piston valve core pressure self-balancing cut-off throttle valve |
| CN110375100A (en) * | 2019-08-23 | 2019-10-25 | 开立基业（北京）阀门制造有限公司 | Flow control valve and electric flow control valve |
| CN117307782A (en) * | 2023-11-30 | 2023-12-29 | 海普瑞(常州)洁净系统科技有限公司 | Control valve for fluid and working method thereof |
-
2016
- 2016-07-25 CN CN201620780730.2U patent/CN205806509U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107542960A (en) * | 2017-10-11 | 2018-01-05 | 天津百利展发集团有限公司 | One kind fine setting nodal pattern throttling stop valve valve core structure |
| CN109140010A (en) * | 2018-09-29 | 2019-01-04 | 乐山市前沿油气设备制造有限公司 | Throttling stop valve |
| CN110118276A (en) * | 2019-05-31 | 2019-08-13 | 孙灿 | A kind of self-purification type valve |
| CN110195783A (en) * | 2019-06-04 | 2019-09-03 | 四川长仪油气集输设备股份有限公司 | Piston valve core pressure self-balancing cut-off throttle valve |
| CN110195783B (en) * | 2019-06-04 | 2023-01-06 | 四川长仪油气集输设备股份有限公司 | Piston type valve core pressure self-balancing stop throttle valve |
| CN110375100A (en) * | 2019-08-23 | 2019-10-25 | 开立基业（北京）阀门制造有限公司 | Flow control valve and electric flow control valve |
| CN117307782A (en) * | 2023-11-30 | 2023-12-29 | 海普瑞(常州)洁净系统科技有限公司 | Control valve for fluid and working method thereof |
| CN117307782B (en) * | 2023-11-30 | 2024-02-23 | 海普瑞(常州)洁净系统科技有限公司 | Control valve for fluid and working method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20161214 Termination date: 20200725 |