CN109780228A - A kind of butterfly valve carrying adjustable internal bypass - Google Patents
A kind of butterfly valve carrying adjustable internal bypass Download PDFInfo
- Publication number
- CN109780228A CN109780228A CN201910166779.7A CN201910166779A CN109780228A CN 109780228 A CN109780228 A CN 109780228A CN 201910166779 A CN201910166779 A CN 201910166779A CN 109780228 A CN109780228 A CN 109780228A
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- Prior art keywords
- valve
- butterfly
- valve rod
- body cavity
- internal bypass
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Abstract
The present invention provides a kind of butterfly valve for carrying adjustable internal bypass, including butterfly valve body, body cavity room A, two regions body cavity room B are divided into butterfly valve body；It is equipped with butterfly plate A at the valve seat of body cavity room A, butterfly plate B, butterfly plate A connection valve rod A, butterfly plate B connection valve rod B are equipped at the valve seat of body cavity room B；Valve rod A setting nested with valve rod B, valve rod A rotate the adjusting for realizing butterfly valve opening in valve rod B.The novel butterfly valve structure of included internal bypass control characteristic provided by the invention can be realized the flow linear regulation of the butterfly valve under small guide vane by a kind of special valve rod form of two sets of different actuating mechanism controls.Apparatus structure is simple, reliable performance, is suitable for a wide range of promote the use of.
Description
Technical field
The present invention relates to a kind of butterfly valve more particularly to a kind of butterfly valves for carrying adjustable internal bypass, belong to control valve for fluids skill
Art field.
Background technique
As social progress develops, the continuous improvement of industrial control technology level, for applying in certain special occasions
Under valve, the realization of application requirement and function also becomes diversification.
The mesolow communicating pipe restructuring implemented in the excision low pressure (LP) cylinder heat supply transformation carried out for power plant in recent years,
Need outlet or low pressure (LP) cylinder entrance installing control admission valve in key.Since universal butterfly valve product is opened medium
The linearity for spending corresponding flow-adjusting characteristics when (30%~70%) is preferable, and in part small guide vane or big aperture, stream
The regulation performance of amount is poor, and incident there are also the vibrations and noise problem of valve body.Therefore, existing butterfly valve product
It is not able to satisfy the above-mentioned demand using operating condition.
Summary of the invention
The technical problem to be solved by the present invention is how to realize flow linear regulation of the butterfly valve under small guide vane.
In order to solve the above-mentioned technical problem, the technical solution of the present invention is to provide a kind of butterfly valve for carrying adjustable internal bypass,
It is characterized by comprising butterfly valve body, body cavity room A, two regions body cavity room B are divided into butterfly valve body；In valve body
It is equipped with butterfly plate A at the valve seat of chamber A, butterfly plate B, butterfly plate A connection valve rod A, butterfly are equipped at the valve seat of body cavity room B
Plate B connection valve rod B；Valve rod A setting nested with valve rod B, valve rod A rotate the adjusting for realizing butterfly valve opening in valve rod B.
Preferably, the body cavity room A, body cavity room B are integrated casting.
Preferably, the body cavity room A is the great circle structure of one end indent, and the body cavity room B is one
Roundlet structure, and body cavity room B is set to the interior recess of body cavity room A.
Preferably, the valve rod A includes circular body, is equipped with double wedge at the top of circular body；Circle is equipped with inside the valve rod B
Shape cavity, circular cavity top are equipped with the circumference tooth socket of arc；The valve rod A is nested in the inside of the valve rod B, and the valve
Double wedge at the top of bar A is matched with the circumference tooth socket inside the valve rod B.
It is highly preferred that the circumference tooth socket is 90 ° of arcs.
Preferably, the valve rod A connection executing agency A, the valve rod B connection executing agency B.
It is highly preferred that the executing agency A and executing agency B is arranged symmetrically at butterfly valve body both ends, with butterfly valve body
Itself is parallel.
Preferably, the butterfly valve has 3 kinds of different states, as described below:
1) butterfly plate A is closed entirely, butterfly plate B is closed entirely, at this time the generally full off-position state of butterfly valve；
2) butterfly plate A standard-sized sheet, butterfly plate B standard-sized sheet, at this time butterfly valve generally standard-sized sheet position state；
3) butterfly plate A close entirely, butterfly plate B standard-sized sheet, butterfly valve generally internal bypass small guide vane state at this time.
It is highly preferred that the adjusting from full off-position state to standard-sized sheet position shape is two kinds specific when butterfly valve is in full off-position state
Mode:
One, standard-sized sheet position state is switched to by valve rod A rotating forward in valve rod B, since valve rod A is nested in valve rod B
In, it is able to drive butterfly plate B and butterfly plate A is followed to rotate synchronously the valve for realizing that opening is unified；
Two, be switched to internal bypass small guide vane state after rotating forward by valve rod B, then by valve rod A in valve rod B just
Standard-sized sheet position state is switched to after to rotation.
Further, it when an emergency situation is encountered needs that corresponding fluids are truncated, only relies on valve rod B band ovable valve stem A and reversely turns
It is dynamic that full off-position state can be realized.
The novel butterfly valve structure of included internal bypass control characteristic provided by the invention is controlled by two sets of different executing agencies
A kind of special valve rod form is made, can be realized the flow linear regulation of the butterfly valve under small guide vane.Apparatus structure is simple, performance
Reliably, it is suitable for a wide range of promote the use of.
Detailed description of the invention
Fig. 1 is the butterfly valve structure schematic diagram provided in this embodiment for carrying adjustable internal bypass；
Fig. 2 is body cavity room A axial sectional view；
Fig. 3 is body cavity room B axle to cross-sectional view；
Fig. 4 is that the butterfly valve provided in this embodiment for carrying adjustable internal bypass closes schematic diagram entirely；(a) body cavity room A is closed entirely；
(b) body cavity room B is closed entirely；(c) the full off-position of butterfly valve；
Fig. 5 is the butterfly valve standard-sized sheet schematic diagram provided in this embodiment for carrying adjustable internal bypass；(a) body cavity room A standard-sized sheet；
(b) body cavity room B standard-sized sheet；(c) butterfly valve standard-sized sheet position；
Fig. 6 is the butterfly valve small-bore internal bypass schematic diagram provided in this embodiment for carrying adjustable internal bypass；(a) body cavity
Room A is closed entirely；(b) body cavity room B standard-sized sheet；(c) the small-bore aperture of butterfly valve internal bypass；
Fig. 7 is the full off-position of butterfly valve to standard-sized sheet position schematic diagram；(a) the full off-position of butterfly valve；(b) butterfly valve standard-sized sheet position；
Fig. 8 is the full off-position of butterfly valve to the small-bore aperture of internal bypass, most Zhongdao standard-sized sheet position schematic diagram；(a) the full off-position of butterfly valve；
(b) the small-bore aperture of butterfly valve internal bypass；(c) butterfly valve standard-sized sheet position；
Description of symbols:
1-executing agency A；2-executing agency B；3-valve bodies；4-body cavity room A；5-body cavity room B；6-valves
Bar A；7-valve rod B；8-butterfly plate A；9-butterfly plate B.
Specific embodiment
Present invention will be further explained below with reference to specific examples.
Fig. 1 is the butterfly valve schematic diagram provided in this embodiment for carrying adjustable internal bypass, described to carry adjustable internal bypass
Butterfly valve includes butterfly valve body, and body cavity room A 4,5 two regions body cavity room B, and butterfly valve valve are divided into inside butterfly valve body
Body is integrated casting.Body cavity room A 4 is the great circle structure of a lower end indent, and body cavity room B 5 is a roundlet knot
Structure, and the recess in the lower end of body cavity room A 4 of body cavity room B 5.
It is equipped with butterfly plate A 8 at the valve seat of body cavity room A 4, is equipped with butterfly at the valve seat of body cavity room B 5
Plate B 9, butterfly plate A 8 connection valve rod A 6, the connection valve rod of butterfly plate B 9 B 7, valve rod A 6, valve rod B 7 are axle sleeve axle construction.
Include circular body in conjunction with Fig. 2 and Fig. 3, valve rod A 6, is equipped with double wedge at the top of circular body.It is equipped with inside valve rod B 7
Circular cavity, circular cavity top are equipped with 90 ° of circumference tooth sockets.Valve rod A 6 is nested in the inside of valve rod B 7, and valve rod A 6 passes through top
Portion's double wedge is matched with 90 ° of circumference tooth sockets inside valve rod B 7.Body cavity room A 4, body cavity room B 5 can be by valve rod A
6 control simultaneously, and body cavity room B 5 is controlled by valve rod B 7.In Fig. 2 and Fig. 3, L indicates medium flow direction.
Connection executing agency A 1, valve rod B 7 connection of valve rod A 6 executing agency B 2, executing agency A 1 and executing agency B
2 are arranged symmetrically at valve rod both ends, are in parallel with valve body itself.
In conjunction with Fig. 4~Fig. 6, the butterfly valve provided in this embodiment for carrying adjustable internal bypass can have 3 kinds of different states, such as
It is lower described:
1) butterfly plate A is closed entirely, butterfly plate B closes (complete to close) entirely: can see out of Fig. 4 cross-sectional view at this time, valve rod A is in 90 ° of ﹢
Position, valve rod B is in the 90 ° of positions ﹢；
2) butterfly plate A standard-sized sheet, butterfly plate B standard-sized sheet (standard-sized sheet): can see out of Fig. 5 cross-sectional view at this time, and valve rod A is in 0 °
Position, valve rod B are in 0 ° of position；
3) butterfly plate A close entirely, butterfly plate B standard-sized sheet (small-bore internal bypass): at this time out of Fig. 6 cross-sectional view it can be seen that, valve rod A
In 90 ° of position, valve rod B is in 0 ° of position.
Fig. 7 show butterfly valve and is directly transformed into full gate status diagram from full off state, and process is as follows:
When butterfly valve is in full off-position state, standard-sized sheet position state is switched to after 90 ° being rotated clockwise by valve rod A,
Valve rod A is nested in valve rod B, can drive butterfly plate B that butterfly plate A is followed to rotate synchronously the valve for realizing that opening is unified.
In the above process, from the full off-position state of state, valve can directly be smoothly completed by closing entirely by the rotation of valve rod A
To the state of standard-sized sheet.When an emergency situation is encountered needs that corresponding fluids are truncated, by a kind of this axle sleeve axle construction of special shape,
Valve rod B band ovable valve stem A can be only relied on and rotate counterclockwise 90 ° of realizations to full off state.
Fig. 8 show butterfly valve and is transformed into internal bypass small guide vane state from full off state, then is transformed into full valve open state.It crosses
Journey is as follows:
When butterfly valve is in full off-position state, internal bypass small guide vane is switched to after 90 ° being rotated clockwise by valve rod B
State drives butterfly plate B to adjust to carry out small-bore internal bypass flow with valve rod B.Butterfly valve is in small-bore aperture tune at this time
The mode of section allows small portion of fluid to pass through more small-bore body cavity room B.
When butterfly valve is in internal bypass small guide vane state, standard-sized sheet shape is switched to after 90 ° being rotated clockwise by valve rod A
State, i.e. full valve are opened, and can smoothly transit to the mode of 100% aperture of heavy caliber from small-bore aperture at this time, at this time all streams
Body medium passes through in unified body cavity room A, B.
In the above process, from full off state, small-bore aperture is transitioned by the rotation realization of valve rod B, then pass through valve rod A
Rotation realization be transitioned into heavy caliber aperture, to smoothly complete full-gear.When an emergency situation is encountered need that respective streams are truncated
When body, pass through a kind of this axle sleeve axle construction of special shape, it can only rely on valve rod B band ovable valve stem A and rotate counterclockwise 90 ° of realities
Now arrive full off state.
It should be understood that up, down, left, right, before and after, front, the back mentioning or may mention in the present specification
The positional terms such as face, top, bottom are defined relative to each construction shown in the drawings, they are opposite concepts,
It is therefore possible to can different location according to locating for it, different use state and correspondingly changed.So also should not be by this
A little or other positional terms are construed to restricted term.
The above, only presently preferred embodiments of the present invention, not to the present invention in any form with substantial limitation,
It should be pointed out that under the premise of not departing from the method for the present invention, can also be made for those skilled in the art
Several improvement and supplement, these are improved and supplement also should be regarded as protection scope of the present invention.All those skilled in the art,
Without departing from the spirit and scope of the present invention, when made using disclosed above technology contents it is a little more
Dynamic, modification and the equivalent variations developed, are equivalent embodiment of the invention；Meanwhile all substantial technologicals pair according to the present invention
The variation, modification and evolution of any equivalent variations made by above-described embodiment, still fall within the range of technical solution of the present invention
It is interior.
Claims (10)
1. a kind of butterfly valve for carrying adjustable internal bypass, it is characterised in that: including butterfly valve body, be divided into body cavity in butterfly valve body
Room A (4), (5) two regions body cavity room B；Butterfly plate A (8), body cavity are equipped at the valve seat of body cavity room A (4)
It is equipped at the valve seat of room B (5) butterfly plate B (9), butterfly plate A (8) connection valve rod A (6), butterfly plate B (9) connection valve rod B (7)；Valve rod
The adjusting of butterfly valve opening is realized in A (6) setting nested with valve rod B (7), valve rod A (6) rotation in valve rod B (7).
2. a kind of butterfly valve for carrying adjustable internal bypass as described in claim 1, it is characterised in that: the body cavity room A
(4), body cavity room B (5) is integrated casting.
3. a kind of butterfly valve for carrying adjustable internal bypass as described in claim 1, it is characterised in that: the body cavity room A (4)
For the great circle structure of one end indent, the body cavity room B (5) is a roundlet structure, and body cavity room B (5) is set
In the interior recess of body cavity room A (4).
4. a kind of butterfly valve for carrying adjustable internal bypass as described in claim 1, it is characterised in that: the valve rod A (6) includes circle
Shape main body, circular body top are equipped with double wedge；It is equipped with circular cavity inside the valve rod B (7), is equipped with arc at the top of circular cavity
Circumference tooth socket；The valve rod A (6) is nested in the inside of the valve rod B (7), and double wedge and institute at the top of the valve rod A (6)
The internal circumference tooth socket of valve rod B (7) is stated to match.
5. a kind of butterfly valve for carrying adjustable internal bypass as claimed in claim 4, it is characterised in that: the circumference tooth socket is 90 °
Arc.
6. a kind of butterfly valve for carrying adjustable internal bypass as described in claim 1, it is characterised in that: valve rod A (6) connection is held
Row mechanism A (1), the valve rod B (7) connect executing agency B (2).
7. a kind of butterfly valve for carrying adjustable internal bypass as claimed in claim 6, it is characterised in that: the executing agency A (1) and
Executing agency B (2) is arranged symmetrically at butterfly valve body both ends, parallel with butterfly valve body itself.
8. a kind of butterfly valve for carrying adjustable internal bypass as described in claim 1, it is characterised in that: the butterfly valve has 3 kinds of differences
State, it is as described below:
1) butterfly plate A (8) is closed entirely, butterfly plate B (9) is closed entirely, at this time the generally full off-position state of butterfly valve；
2) butterfly plate A (8) standard-sized sheet, butterfly plate B (9) standard-sized sheet, at this time butterfly valve generally standard-sized sheet position state；
3) butterfly plate A (8) close entirely, butterfly plate B (9) standard-sized sheet, butterfly valve generally internal bypass small guide vane state at this time.
9. a kind of butterfly valve for carrying adjustable internal bypass as claimed in claim 8, it is characterised in that: when butterfly valve is in full off-position shape
When state, from full off-position state to the specific two ways of adjusting of standard-sized sheet position state:
One, standard-sized sheet position state is switched to by valve rod A (6) rotating forward in valve rod B (7), since valve rod A (6) is nested in
In valve rod B (7), it is able to drive butterfly plate B (9) and butterfly plate A (8) is followed to rotate synchronously the valve for realizing that opening is unified；
Two, internal bypass small guide vane state is switched to after rotating forward by valve rod B (7), then by valve rod A (6) in valve rod B (7)
It is interior rotate forward after be switched to standard-sized sheet position state.
10. a kind of butterfly valve for carrying adjustable internal bypass as claimed in claim 9, it is characterised in that: needed when an emergency situation is encountered
When corresponding fluids are truncated, only rely on valve rod B (7) band ovable valve stem A (6) and rotate backward full off-position state can be realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910166779.7A CN109780228B (en) | 2019-03-06 | 2019-03-06 | Butterfly valve with adjustable internal bypass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910166779.7A CN109780228B (en) | 2019-03-06 | 2019-03-06 | Butterfly valve with adjustable internal bypass |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109780228A true CN109780228A (en) | 2019-05-21 |
| CN109780228B CN109780228B (en) | 2023-10-17 |
Family
ID=66487343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910166779.7A Active CN109780228B (en) | 2019-03-06 | 2019-03-06 | Butterfly valve with adjustable internal bypass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109780228B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081188A (en) * | 2019-05-23 | 2019-08-02 | 国电科学技术研究院有限公司 | A kind of Steam Turbine Through IP Admission butterfly valve |
| CN113124177A (en) * | 2021-04-09 | 2021-07-16 | 西安西热节能技术有限公司 | Double-regulating mechanism valve suitable for large-caliber small-flow regulation |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0942533A (en) * | 1995-07-31 | 1997-02-14 | Tomoe Gijutsu Kenkyusho:Kk | Butterfly valve having main valve and auxiliary valve |
| CN2752557Y (en) * | 2004-10-15 | 2006-01-18 | 蔺荣春 | Improved sructure of hard-sealing butterfly valve |
| CN105240543A (en) * | 2015-11-17 | 2016-01-13 | 天津市卡尔斯阀门有限公司 | Novel butterfly valve |
| CN105240545A (en) * | 2015-10-31 | 2016-01-13 | 河北工业大学 | Dual-drive friction-free hard-seal butterfly valve |
| CN209875971U (en) * | 2019-03-06 | 2019-12-31 | 上海发电设备成套设计研究院有限责任公司 | Butterfly valve with adjustable inner bypass |
-
2019
- 2019-03-06 CN CN201910166779.7A patent/CN109780228B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0942533A (en) * | 1995-07-31 | 1997-02-14 | Tomoe Gijutsu Kenkyusho:Kk | Butterfly valve having main valve and auxiliary valve |
| CN2752557Y (en) * | 2004-10-15 | 2006-01-18 | 蔺荣春 | Improved sructure of hard-sealing butterfly valve |
| CN105240545A (en) * | 2015-10-31 | 2016-01-13 | 河北工业大学 | Dual-drive friction-free hard-seal butterfly valve |
| CN105240543A (en) * | 2015-11-17 | 2016-01-13 | 天津市卡尔斯阀门有限公司 | Novel butterfly valve |
| CN209875971U (en) * | 2019-03-06 | 2019-12-31 | 上海发电设备成套设计研究院有限责任公司 | Butterfly valve with adjustable inner bypass |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081188A (en) * | 2019-05-23 | 2019-08-02 | 国电科学技术研究院有限公司 | A kind of Steam Turbine Through IP Admission butterfly valve |
| CN113124177A (en) * | 2021-04-09 | 2021-07-16 | 西安西热节能技术有限公司 | Double-regulating mechanism valve suitable for large-caliber small-flow regulation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109780228B (en) | 2023-10-17 |
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Effective date of registration: 20200525 Address after: 200240 Shanghai city Minhang District Jianchuan Road No. 1115 Applicant after: SHANGHAI POWER EQUIPMENT Research Institute Applicant after: KAIFENG POWER GENERATION BRANCH OF HENAN ELECTRIC POWER CO.,LTD., STATE POWER INVESTMENT Corp. Applicant after: State Power Investment Group Henan Electric Power Co.,Ltd. Address before: No. 1115 Jianchuan Road, Minhang District, Shanghai 201100 Applicant before: SHANGHAI POWER EQUIPMENT Research Institute Applicant before: KAIFENG POWER GENERATION BRANCH OF HENAN ELECTRIC POWER CO.,LTD., STATE POWER INVESTMENT Corp. |
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