CN105987185B - A kind of three core shift butterfly valve of high pressure - Google Patents
A kind of three core shift butterfly valve of high pressure Download PDFInfo
- Publication number
- CN105987185B CN105987185B CN201610476865.4A CN201610476865A CN105987185B CN 105987185 B CN105987185 B CN 105987185B CN 201610476865 A CN201610476865 A CN 201610476865A CN 105987185 B CN105987185 B CN 105987185B
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- valve
- valve seat
- sealing
- plate
- valve body
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/226—Shaping or arrangements of the sealing
- F16K1/2263—Shaping or arrangements of the sealing the sealing being arranged on the valve seat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
A kind of three core shift butterfly valve of high pressure, including valve body, valve plate, valve seat and axis, axis runs through valve body and the bearing in valve body, and is connected by pin with valve plate, it is characterised in that：The valve seat is pressed in by valve seat trim ring on valve body, the valve seat trim ring is fixed by screw thread and valve body, valve washer is caught between the valve seat and valve body, valve plate backing plate is installed, the outside of the valve seat trim ring is adjusted the position of valve plate backing plate by screw between the valve seat and valve seat trim ring.The present invention provides a kind of simple in structure, processing technology it is simple, be easily assembled the excellent three core shift butterfly valve of high pressure of adjustment, sealing performance, the relative position of its sealing ring is by being screwed, its leakproofness will not be influenced due to the effect of external force, screw fit valve plate backing plate provides sealing ring face pressure, make sealing ring and valve base sealing, reduce the influence that the variation of the external environments such as high temperature and pressure deforms sealing element, the applicable pressure and temperature range for making three core shift butterfly valves is wider.
Description
Technical field
The present invention relates to a kind of butterfly valves, and in particular to a kind of three core shift butterfly valve of high pressure.
Background technology
Butterfly valve is a kind of common control valve, has the characteristics that simple in structure, small, light-weight to be widely used in stone
The industry fields such as oiling work, metallurgical steel-making, water process, electric power.
At present, high temperature and pressure especially High Pressure Difference adjusting and cut-out occasion under three-eccentric-butterfly-valve, be all import mostly
Product.The three-eccentric-butterfly-valve of domestic manufacturer's production is generally soft seal, and sealing ring is metal and graphite stacked structure, the structure
Generally there is good sealing performance at normal temperatures and pressures, but due to the graphite material scope of application under high temperature and pressure or low temperature
Limitation leakage rate can be caused to increase, the situation that valve fits badly.In addition, under the impact of high-pressure medium, soft graphite is very
It is more easily damaged, so as to make valve leakage automatic inspection exceeded.
The metal sealing type three-eccentric-butterfly-valve seal form of domestic production is essentially all face sealing, and valve plate is circular conical surface,
Sealing ring is placed on valve plate, is compressed with trim ring, and valve body processes step and coordinates with sealing ring.In this way design the shortcomings that be in order to
Valve body and sealing ring cooperation must reduce body cavity, in this way substantially reduce the negotiability of valve, once and on valve body
Sealing surface damage, pole not aspect repair；In addition, the face required torque of sealing is big, need to match larger executing agency.
The patent of 204477330 U of Publication No. CN discloses a kind of three-eccentric-butterfly-valve with linear sealing structure,
Sealing station is that on one wire, although improving sealing performance, this structure is high to the processing request of valve parts,
Requirement simultaneously to assembly crewman is also high, needs to can be only achieved sealing station after being dismounted for multiple times adjusts, reaches requirement
Sealing effect.Moreover, in the actual use process, since sealing station requirement is high, the valve adjusted is being transported for linear sealing
Often since external force influences in defeated and installation process, the sealing station adjusted changes, and leads to the seal failure of butterfly valve；Through
It crosses and is repeatedly exchanged with user, my company finds, when valve is mounted on pipeline, since bolt is twisted too when companion flange is installed
Tightly, the transition of the wound form washer between companion flange and valve body is caused to be compressed, wound form washer is made to reach power at sealing ring,
Sealing line position is detached from so as to cause valve, causes valve leak big, seal failure.
Invention content
The present invention is intended to provide a kind of three core shift butterfly valve of high pressure, sealing structure is still linear sealing, but in trim ring and sealing
Using special construction on ring, make its sealing station not by External force interference, sealing performance is effectively ensured, and is carried under square one
The high high voltage performance of three core shift butterfly valves.
To solve the above-mentioned problems, three core shift butterfly valve of high pressure provided by the invention employs following technical solution：
A kind of three core shift butterfly valve of high pressure, including valve body, valve plate, valve seat and axis, axis is through valve body and in valve body
Bearing, and be connected by pin with valve plate, it is characterised in that：The valve seat is pressed in by valve seat trim ring on valve body, described
Valve seat trim ring fixed by screw thread and valve body, valve washer, the valve seat and valve are caught between the valve seat and valve body
Valve plate backing plate is installed, the outside of the valve seat trim ring is adjusted the position of valve plate backing plate by screw between seat trim ring.
Preferably, the outside of the valve seat trim ring is equipped with screw, and screw can adjust the position of fixed valve plate backing plate.
Preferably, the valve washer is the reinforced Graphite pad of 316L metallic plates.
Preferably, the sealing surface of valve plate is the positive conical surface, and the sealing surface of valve seat is arc surface.
The beneficial effects of the present invention are：Provide it is a kind of it is simple in structure, processing technology is simple, is easily assembled adjustment, is close
The excellent three core shift butterfly valve of high pressure of sealing property, the relative position of sealing ring by being screwed, will not due to external force effect and
Its leakproofness is influenced, screw fit valve plate backing plate provides sealing ring face pressure, makes sealing ring and valve base sealing, reduce high temperature and pressure
Etc. external environments the influence that is deformed to sealing element of variation, the Applicable temperature range for making three core shift butterfly valves is wider.
Description of the drawings
Fig. 1 is the configuration schematic diagram of preferred embodiment provided by the invention.
Fig. 2 is the assembling structure schematic diagram of preferred embodiment provided by the invention.
Wherein：1. valve body；2. valve plate；3. valve seat；4. valve seat trim ring；5. valve washer；6. axis；7. bearing；31. valve plate pad
Plate；23. screw.
Specific embodiment
In order to make those skilled in the art better understand the technical solutions in the application, below in conjunction with the application reality
The attached drawing in example is applied, the technical solution in the embodiment of the present application is clearly and completely described, it is clear that described implementation
Example is merely a part but not all of the embodiments of the present application.Based on the embodiment in the application, this field is common
Technical staff's all other embodiments obtained without making creative work should all belong to the application protection
Range.
As Figure 1-Figure 2, three core shift butterfly valve of a kind of high pressure provided by the invention, including valve body 1, valve plate 2, valve seat 3
With axis 6, axis 6 runs through valve body 1 and the bearing 7 in valve body 1, and is connected by pin with valve plate 2, it is characterised in that：Institute
The valve seat 3 stated is pressed in by valve seat trim ring 4 on valve body 1, and the valve seat trim ring 4 is fixed by screw thread and valve body 1, is reduced
Due in transport and installation process, influence that external force generates butterfly valve improves sealing performance, the valve seat 3 and valve body 1 it
Between be caught in valve washer 5, valve plate backing plate 31 is installed between the valve seat 3 and valve seat trim ring 4.
In another preferred embodiment of the present invention, the outside of the valve seat trim ring 4 is equipped with screw 23, screw 23
The position of fixed valve plate backing plate 31 can be adjusted, and then achievees the purpose that compress valve seat 3, reaches better seal effect, simultaneously
Reducing the temperature and pressure of environment leads to the influence of seat material the changed factor of leakproofness.
In another preferred embodiment of the present invention, the valve washer is the reinforced graphite pads of 316L metallic plates
Piece when butterfly valve is mounted on pipeline, reduces the too tightly influence to sealing line position that bolt when companion flange is installed is twisted, sealing
Effect is good.
In another preferred embodiment of the present invention, the sealing surface of valve plate is the positive conical surface, and the sealing surface of valve seat is circle
Cambered surface, valve plate use positive vertebra face, compared with the eccentric circular cone that other domestic producers use, the face pressure everywhere on the sealing pair of positive vertebra face
Uniformity, and bore face pressure everywhere partially and differ completely, there are high pressure and low-pressure area, low-pressure area reaches face pressure required during sealing
Than higher-pressure region higher, larger torque is needed to realize sealing.So compared with existing inclined vertebra face, the positive conical surface seal of the present invention
Required centre plane forces down, and the torque needed is small, is more easy to realize sealing.Therefore compared with existing three-eccentric-butterfly-valve, leakage control
More preferably, torque smaller, valve negotiability bigger are fastened.Under high temperature and pressure or low temperature using simple metal sealing ring with it is existing
Product is compared to the obvious advantage.
The beneficial effects of the present invention are：Provide it is a kind of it is simple in structure, processing technology is simple, is easily assembled adjustment, is close
The excellent three core shift butterfly valve of high pressure of sealing property, the relative position of sealing ring by being screwed, will not due to external force effect and
Its leakproofness is influenced, screw fit valve plate backing plate provides sealing ring face pressure, makes sealing ring and valve base sealing, reduce high temperature and pressure
Etc. external environments the influence that is deformed to sealing element of variation, the applicable pressure and temperature range for making three core shift butterfly valves is wider.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar can understand present disclosure and implement according to this, and it is not intended to limit the scope of the present invention.It is all according to the present invention
The equivalent change or modification done should be all included within the scope of the present invention.
Claims (2)
1. a kind of three core shift butterfly valve of high pressure, including valve body, valve plate, valve seat and axis, axis runs through valve body and the axis in valve body
It holds, and is connected by pin with valve plate, it is characterised in that：The valve seat is pressed in by valve seat trim ring on valve body, described
Valve seat trim ring is fixed by screw thread and valve body, and valve washer, the valve seat and valve seat are caught between the valve seat and valve body
Valve plate backing plate is installed, the outside of the valve seat trim ring is adjusted the position of valve plate backing plate by screw between trim ring；The valve
The outside of seat trim ring is equipped with screw, and screw can adjust the position of fixed valve plate backing plate；The valve washer is 316L metals
The reinforced Graphite pad of plate.
2. a kind of three core shift butterfly valve of high pressure according to claim 1, it is characterised in that：The sealing surface of valve plate is the positive conical surface,
The sealing surface of valve seat is arc surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610476865.4A CN105987185B (en) | 2016-06-27 | 2016-06-27 | A kind of three core shift butterfly valve of high pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610476865.4A CN105987185B (en) | 2016-06-27 | 2016-06-27 | A kind of three core shift butterfly valve of high pressure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105987185A CN105987185A (en) | 2016-10-05 |
| CN105987185B true CN105987185B (en) | 2018-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610476865.4A Active CN105987185B (en) | 2016-06-27 | 2016-06-27 | A kind of three core shift butterfly valve of high pressure |
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| Country | Link |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470792A (en) * | 2013-09-23 | 2013-12-25 | 南通龙源电站阀门有限公司 | Triple-eccentric high-pressure butterfly valve capable of realizing online replacement of valve seat |
| CN203384390U (en) * | 2013-11-04 | 2014-01-08 | 呼阀科技控股有限公司 | Triple eccentric two-way hard sealed butterfly valve |
| CN203585366U (en) * | 2013-10-24 | 2014-05-07 | 铜陵市经纬流体科技有限公司 | Valve seat fixing device of hard seal butterfly valve |
| CN204477330U (en) * | 2015-03-06 | 2015-07-15 | 无锡斯考尔自动控制设备有限公司 | A kind of three eccentric metal seal butterfly valve |
| CN105240539A (en) * | 2015-10-12 | 2016-01-13 | 罗普阀业（宜兴）有限公司 | High platform all-metal hard sealing butterfly valve |
| CN205978502U (en) * | 2016-06-27 | 2017-02-22 | 无锡斯考尔自动控制设备有限公司 | Three eccentric butterfly valves of high pressure |
-
2016
- 2016-06-27 CN CN201610476865.4A patent/CN105987185B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470792A (en) * | 2013-09-23 | 2013-12-25 | 南通龙源电站阀门有限公司 | Triple-eccentric high-pressure butterfly valve capable of realizing online replacement of valve seat |
| CN203585366U (en) * | 2013-10-24 | 2014-05-07 | 铜陵市经纬流体科技有限公司 | Valve seat fixing device of hard seal butterfly valve |
| CN203384390U (en) * | 2013-11-04 | 2014-01-08 | 呼阀科技控股有限公司 | Triple eccentric two-way hard sealed butterfly valve |
| CN204477330U (en) * | 2015-03-06 | 2015-07-15 | 无锡斯考尔自动控制设备有限公司 | A kind of three eccentric metal seal butterfly valve |
| CN105240539A (en) * | 2015-10-12 | 2016-01-13 | 罗普阀业（宜兴）有限公司 | High platform all-metal hard sealing butterfly valve |
| CN205978502U (en) * | 2016-06-27 | 2017-02-22 | 无锡斯考尔自动控制设备有限公司 | Three eccentric butterfly valves of high pressure |
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| Publication number | Publication date |
|---|---|
| CN105987185A (en) | 2016-10-05 |
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Denomination of invention: High pressure three eccentric core butterfly valve Effective date of registration: 20211125 Granted publication date: 20180703 Pledgee: Agricultural Bank of China Limited by Share Ltd. Wuxi science and Technology Branch Pledgor: WUXI SCORE AUTOMATIC CONTROL EQUIPMENT CO.,LTD. Registration number: Y2021320010505 |
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