CN208417555U - A kind of high temperature resistant butterfly valve - Google Patents
A kind of high temperature resistant butterfly valve Download PDFInfo
- Publication number
- CN208417555U CN208417555U CN201820980854.4U CN201820980854U CN208417555U CN 208417555 U CN208417555 U CN 208417555U CN 201820980854 U CN201820980854 U CN 201820980854U CN 208417555 U CN208417555 U CN 208417555U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve shaft
- high temperature
- butterfly plate
- temperature resistant
- Prior art date
- 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 a kind of high temperature resistant butterfly valves, it is related to valve technology field, including valve shaft, the top and bottom of valve shaft outer surface two sides is provided with fixing piece, the outer surface of valve shaft is provided with valve body, the inside of fixing piece is fixedly connected by pin with the inside of valve body, the outer surface of valve shaft and is located at valve body and is internally provided with slide key.The utility model avoids butterfly plate caused by due to expanding with heat and contract with cold for valve shaft and deviates normal sealing position, ensure that the position of butterfly plate is placed in the middle, it will drive butterfly plate generation axial displacement after avoiding valve shaft expanded by heating, valve sealing surface when hot is caused to abrade, decline when sealing effect compares cold conditions, the serious problems such as closing can not even be caused, it ensure that valve in cold conditions and hot lower sealing effect well, avoid maintenance or replacement of the staff to valve, alleviate the burden of staff, the cost for reducing production run avoids unnecessary economic loss.
Description
Technical field
The utility model relates to valve technology field, specially a kind of high temperature resistant butterfly valve.
Background technique
High temperature butterfly valve is widely used in the high-temperature pipe in the industries such as metallurgy, chemical industry, power station, as high-temperature medium stream
Adjusting or disconnecting device, butterfly valve when logical are called flap valve, are a kind of simple regulating valves of structure, can be used for low pressure pipeline medium
Switch control butterfly valve refer to closure member (flap or butterfly plate) be disk, the one of open and close is reached around valve shaft rotation
Kind valve, valve can be used for controlling empty gas and water, steam, various corrosive medias, mud, oil product, liquid metal and radiating medium
Etc. various types fluid flowing, cutting and throttling action are mainly played on pipeline, butterfly valve opening and closing element is a discoidal butterfly
Plate rotates in valve body around the axis of its own, to achieve the purpose that opening and closing or adjusting, high temperature butterfly valve has in multiple industries
Highly important effect.
The usual valve butterfly plate is connected by taper pin with valve shaft, be will drive butterfly plate after valve shaft expanded by heating and is generated axial position
Move, cause valve when hot sealing surface abrade, decline when sealing effect compares cold conditions, in addition can not cause close etc. seriously ask
Topic, at this moment can only produce parking maintenance valve or replacement valve, production run increased costs cause to waste.
Utility model content
In view of the deficiencies of the prior art, the utility model provides a kind of high temperature resistant butterfly valve, solves the valve of existing butterfly valve
It will drive butterfly plate after axis expanded by heating and generate axial displacement, cause valve sealing surface when hot to abrade, sealing effect is compared cold
Decline when state, or even the problem of closing can not be caused.
In order to achieve the above object, the utility model is achieved by the following technical programs: a kind of high temperature resistant butterfly valve, including
Valve shaft, the top and bottom of valve shaft outer surface two sides are provided with fixing piece, and the outer surface of the valve shaft is provided with valve body,
The inside of the fixing piece is fixedly connected by pin with the inside of valve body, the outer surface of the valve shaft and the inside for being located at valve body
It is provided with slide key, the outer surface of the slide key is provided with butterfly plate, the outer surface of the valve shaft and two sides for being located at butterfly plate are equal
It is provided with positioning sleeve, the valve body is internally provided with butterfly plate sealing ring.
Preferably, the positioning sleeve is by the way of dual-gripper positioning sleeve.
Preferably, the positioning sleeve uses material identical or approximate with the main material coefficient of expansion.
Preferably, the connection type of the valve shaft and butterfly plate is slidably connected using slide key.
Preferably, the valve body uses three dimension eccentric structure using sealing.
Preferably, the positioning sleeve uses heat-resisting material.
Beneficial effect
The utility model provides a kind of high temperature resistant butterfly valve.Have it is following the utility model has the advantages that
(1), the high temperature resistant butterfly valve, the structure of dual-gripper positioning sleeve is used by valve shaft, and the connection of valve shaft and butterfly plate uses
The connection type of slide key, positioning sleeve use material identical or approximate with the main material coefficient of expansion, avoid because of valve shaft
Expand with heat and contract with cold and caused by butterfly plate deviate normal sealing position, it is ensured that the position of butterfly plate is placed in the middle, after avoiding valve shaft expanded by heating
It will drive butterfly plate and generate axial displacement, valve sealing surface when hot is caused to abrade, decline when sealing effect compares cold conditions, even
The serious problems such as closing can not be caused, ensure that valve in cold conditions and hot lower sealing effect, avoids staff well
Maintenance or replacement to valve, alleviate the burden of staff, reduce the cost of production run, avoid unnecessary warp
Ji loss.
(2), the high temperature resistant butterfly valve uses three dimension eccentric structure by valve seal, can play when butterfly valve is closed close
The good effect of sealing property can reduce the friction between sealing surface when butterfly valve is closed, keep valve durable, pass through valve
Material can satisfy different uses suitable for the operating condition of high-temperature medium using the consistent heat-resisting material of the coefficient of expansion in this way
Demand improves practicability.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model.
In figure: 1, valve shaft, 2, fixing piece, 3, valve body, 4, pin, 5, slide key, 6, butterfly plate, 7, positioning sleeve, 8, butterfly plate it is close
Seal.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Referring to Fig. 1, the utility model provides a kind of technical solution: a kind of high temperature resistant butterfly valve, including valve shaft 1, valve shaft 1 with
The connection type of butterfly plate 6 is slidably connected using slide key 5, and the top and bottom of the 1 outer surface two sides of valve shaft is provided with solid
Determine part 2, valve body 3 and valve shaft 1 can be attached by fixing piece 2 by pin 4, and the outer surface of the valve shaft 1 is provided with valve body
3, valve body 3 uses three dimension eccentric structure using sealing, and three dimension eccentric structure has superior sealing mechanism, keeps valve opening light
Just, sealed reliable makes valve preferably work, and the inside of the fixing piece 2 is fixed by pin 4 and the inside of valve body 3
Connection, the outer surface of the valve shaft 1 and is located at valve body 3 and is internally provided with slide key 5, is made by being slidably connected for slide key 5
Butterfly plate 6 can be slided, and the outer surface of the slide key 5 is provided with butterfly plate 6,6 moment of butterfly plate and valve body 3 when valve opening
Sealing surface is detached from, and is reduced the friction between butterfly plate 6 and sealing surface, is kept valve more durable, the outer surface of the valve shaft 1 and
It is provided with positioning sleeve 7 positioned at the two sides of butterfly plate 6, positioning sleeve 7 uses heat-resisting material, and positioning sleeve 7 can using heat-resisting material
To be suitable for the operating condition of high-temperature medium, can satisfy different use demands in this way, improve practicability, positioning sleeve 7 using with
The main material coefficient of expansion is identical or approximate material, positioning sleeve 7 use material identical or approximate with the main material coefficient of expansion
Material avoids butterfly plate 6 caused by due to expanding with heat and contract with cold for valve shaft 1 from deviateing normal sealing position, it is ensured that and the position of butterfly plate 6 is placed in the middle, from
And guaranteeing valve in cold conditions and hot lower sealing effect, positioning sleeve 7 is by the way of dual-gripper positioning sleeve 7, and positioning sleeve 7 is using double
The mode of support positioning sleeve 7 can preferably limit butterfly plate 6, can preferably play a supporting role to valve shaft 1, described
Valve body 3 is internally provided with butterfly plate sealing ring 8, and butterfly plate sealing ring 8 is close to 3 sealing surface of valve body with center displacement when the valve is closed
Sealing is squeezed, butterfly plate sealing ring 8 is pressurized uniformly, plays the role of good seal performance.
In use, valve seal uses three dimension eccentric structure, when closing valve, butterfly plate sealing ring 8 is close to center displacement
3 sealing surface of valve body squeezes sealing, and butterfly plate sealing ring 8 is pressurized uniformly, and when Open valve, 6 moment of butterfly plate and valve body 1 seal emaciated face
From, the friction between sealing surface is reduced, keeps valve durable, structure of the valve shaft 1 using dual-gripper positioning sleeve 7, valve shaft 1 and butterfly
By the way of the connection of slide key 5, positioning sleeve 7 uses material identical or approximate with the main material coefficient of expansion for the connection of plate 6,
Butterfly plate 6 caused by due to expanding with heat and contract with cold for valve shaft 1 is avoided to deviate normal sealing position, it is ensured that the position of butterfly plate 6 is placed in the middle, to protect
Valve is demonstrate,proved in cold conditions and hot lower sealing effect, valve is allow preferably to work.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (6)
1. a kind of high temperature resistant butterfly valve, including valve shaft (1), it is characterised in that: the top and bottom of valve shaft (1) the outer surface two sides
It is provided with fixing piece (2), the outer surface of the valve shaft (1) is provided with valve body (3), and the inside of the fixing piece (2) passes through pin
Nail (4) is fixedly connected with the inside of valve body (3), the outer surface of the valve shaft (1) and is internally provided with sliding positioned at valve body (3)
The outer surface of key (5), the slide key (5) is provided with butterfly plate (6), the outer surface of the valve shaft (1) and be located at butterfly plate (6) two
Side is provided with positioning sleeve (7), and the valve body (3) is internally provided with butterfly plate sealing ring (8).
2. a kind of high temperature resistant butterfly valve according to claim 1, it is characterised in that: the positioning sleeve (7) is fixed using dual-gripper
The mode of position set (7).
3. a kind of high temperature resistant butterfly valve according to claim 1, it is characterised in that: the positioning sleeve (7) uses and main body material
The matter coefficient of expansion is identical or approximate material.
4. a kind of high temperature resistant butterfly valve according to claim 1, it is characterised in that: the connection of the valve shaft (1) and butterfly plate (6)
Mode is slidably connected using slide key (5).
5. a kind of high temperature resistant butterfly valve according to claim 1, it is characterised in that: the valve body (3) uses three using sealing
Tie up eccentric structure.
6. a kind of high temperature resistant butterfly valve according to claim 1, it is characterised in that: the positioning sleeve (7) uses high temperature resistant material
Material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820980854.4U CN208417555U (en) | 2018-06-25 | 2018-06-25 | A kind of high temperature resistant butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820980854.4U CN208417555U (en) | 2018-06-25 | 2018-06-25 | A kind of high temperature resistant butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208417555U true CN208417555U (en) | 2019-01-22 |
Family
ID=65108149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820980854.4U Expired - Fee Related CN208417555U (en) | 2018-06-25 | 2018-06-25 | A kind of high temperature resistant butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208417555U (en) |
-
2018
- 2018-06-25 CN CN201820980854.4U patent/CN208417555U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190122 Termination date: 20190625 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |