CN204175987U - Sealed type dish valve - Google Patents
Sealed type dish valve Download PDFInfo
- Publication number
- CN204175987U CN204175987U CN201420541611.2U CN201420541611U CN204175987U CN 204175987 U CN204175987 U CN 204175987U CN 201420541611 U CN201420541611 U CN 201420541611U CN 204175987 U CN204175987 U CN 204175987U
- Authority
- CN
- China
- Prior art keywords
- valve seat
- elastic expansion
- inclination
- expansion valve
- spool
- 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 sealed type dish valve, comprise valve seat, valve rod and spool, valve seat is provided with two elastic expansion valve seat, two elastic expansion valve seat is fixed on valve seat by pressing plate and panel nut, spool is provided with seal ring, spool is also provided with fixed plate, two elastic expansion valve seat is provided with into the plane of inclination at 15 degree of-30 degree tilt angle, seal ring is provided with the inclination identical with shell fragment valve seat top incline angle of inclination and compresses face, valve seat is provided with on-bne repair mouth, on-bne repair mouth is provided with cover plate, cover plate is fixed on the outer surface of valve seat by cover plate bolt.Structure of the present utility model is simple, set up two elastic expansion valve seat, improve the sealing adaptive capacity of dish valve, be provided with on-bne repair mouth simultaneously, panel nut can be regulated by on-bne repair mouth, thus reach the seal pressure of regulation disc valve or change the Sealing of dish valve, facilitate inspection and maintenance, improve the working life of dish valve, facilitate the continuous security and stability that enterprise produces, improve social benefit.
Description
Technical field
The utility model belongs to dish valve technology field, is specifically related to a kind of sealed type dish valve.
Background technique
Butterfly valve has the advantages such as volume is little, lightweight, structure is simple, easy to operate, keying is rapid, good seal performance, negotiability are strong, also has and installs and uses not by the feature of duct orientation restriction; Therefore, butterfly valve is welcome by users ground deeply; But the sealing due to butterfly valve is all the sealing adopting soft seal or soft or hard to combine usually, the sealing of these forms, under the working condition of high temperature and low temperature due to temperature change the distortion causing Sealing; The distortion of Sealing ground can not be effectively controlled and compensate, so butterfly valve is not suitable for high temperature and worst cold case condition under typical conditions; On the other hand, because valve sometimes needs valve to unload from pipeline to repair in the process of maintenance, maintenance, maintenance; Do like this and not only take a lot of work but also require great effort, affect the sealing of dish valve and working life and stability in use to a certain extent, be difficult to the demand meeting market.
Summary of the invention
In order to solve the problems of the technologies described above, the utility model provides a kind of structure simple, uses good seal performance and the strong sealed type dish valve of use safety stability.
The technological scheme realizing the utility model object is a kind of sealed type dish valve, comprise valve seat, valve rod and spool, described valve seat is provided with two elastic expansion valve seat, described pair of elastic expansion valve seat is fixed on valve seat by pressing plate and panel nut, described spool is provided with seal ring, described pair of elastic expansion valve seat is arranged on the contacting point of described valve seat and described spool, the contacting point and compressing with described pair of elastic expansion valve seat that described seal ring is arranged on described spool and valve seat is sealed and matched, described spool is also provided with fixed plate, described fixed plate is fixed on spool by set screw nut, described seal ring is fixed on spool by fixed plate pressing, described pair of elastic expansion valve seat is provided with into the plane of inclination at 15 degree of-30 degree tilt angle, described seal ring is provided with identical with described shell fragment valve seat top incline angle of inclination inclination and compresses face, the inclination of described seal ring compresses face and is connected on the plane of inclination of described pair of elastic expansion valve seat, described valve seat is provided with on-bne repair mouth, described on-bne repair mouth is provided with cover plate, described cover plate is fixed on the outer surface of valve seat by cover plate bolt.
Described seal ring forms at least two layers of sheet metal are adhesively fixed by bonding layer.Adopt sheet metal can ensure its resistance to high temperature, ensure that its sealing to a certain extent.
The packing ring chip type spring of high temperature resistant type is provided with between described pair of elastic expansion valve seat and valve seat.Packing ring chip type spring can around butterfly valve passage with 360 degree of directions swing valve rod pressure act under automatically find the secondary gap that is filled with a sealing and realize sealing, adopt packing ring chip type spring simultaneously, in use, packing ring chip type spring can swing around the butterfly valve diameter that circulates with 360 degree of directions; Certain buffer space can be improved for two elastic expansion valve seat, and have recuperation valve gate seal to cause the ability of distortion because of the change of temperature.
The tilt angle of the plane of inclination of described pair of elastic expansion valve seat is 20 degree of settings.Two elastic expansion valve seat acts on lower seal be pressed into valve seat at valve rod, and valve seat relies on the self-locking of frictional force to be held tightly tightly by seal ring and realizes sealing.
Be provided with a small―gap suture between the plane of inclination of described pair of elastic expansion valve seat and spool, described seal ring is pressed on the plane of inclination of two elastic expansion valve seat through small―gap suture.
The utility model has positive effect: structure of the present utility model is simple, set up two elastic expansion valve seat, and seal ring is sealed by right angle and makes plane of inclination sealing into, change the sealability of dish valve, improve the sealing adaptive capacity of dish valve to a certain extent, be provided with on-bne repair mouth simultaneously, and two elastic expansion valve seat is fixed by pressing plate and panel nut, in use, panel nut can be regulated by on-bne repair mouth, thus reach the seal pressure of regulation disc valve or change the Sealing of dish valve, facilitate inspection and maintenance, improve the working life of dish valve to a certain extent, effectively facilitate the continuous security and stability that enterprise produces, improve social benefit.
Accompanying drawing explanation
In order to make content of the present utility model be more likely to be clearly understood, below according to specific embodiment also by reference to the accompanying drawings, the utility model is described in further detail, wherein:
Fig. 1 is general structure schematic diagram of the present utility model;
Fig. 2 is P place structure enlarged diagram in Fig. 1;
Fig. 3 is that in Fig. 1, N-N cuts open schematic diagram;
Fig. 4 is the free-body diagram of D point in Fig. 3;
Fig. 5 is A, B two using state schematic diagram at place in Fig. 3.
Embodiment
(embodiment 1)
Fig. 1 to Fig. 5 shows a kind of embodiment of the present utility model, and wherein Fig. 1 is general structure schematic diagram of the present utility model; Fig. 2 is P place structure enlarged diagram in Fig. 1; Fig. 3 is that in Fig. 1, N-N cuts open schematic diagram; Fig. 4 is the free-body diagram of D point in Fig. 3; Fig. 5 is A, B two using state schematic diagram at place in Fig. 3.
See Fig. 1 to Fig. 5, a kind of sealed type dish valve, comprise valve seat 1, valve rod 2 and spool 3, described valve seat 1 is provided with two elastic expansion valve seat 4, described pair of elastic expansion valve seat 4 is fixed on valve seat 1 by pressing plate 5 and panel nut 6, described spool 3 is provided with seal ring 7, described pair of elastic expansion valve seat 4 is arranged on the contacting point of described valve seat 1 and described spool 3, the contacting point and compressing with described pair of elastic expansion valve seat 4 that described seal ring 7 is arranged on described spool 3 and valve seat 1 is sealed and matched, described spool 3 is also provided with fixed plate 8, described fixed plate 8 is fixed on spool 3 by set screw nut 9, described seal ring 7 is fixed on spool 3 by fixed plate 8 pressing, described pair of elastic expansion valve seat 4 is provided with into the plane of inclination 10 at 15 degree of-30 degree tilt angle, described seal ring 7 is provided with identical with described shell fragment valve seat 4 top incline 10 angle of inclination inclination and compresses face 11, the inclination of described seal ring 7 compresses face 11 and is connected on the plane of inclination 10 of described pair of elastic expansion valve seat 4, described valve seat 1 is provided with on-bne repair mouth 12, described on-bne repair mouth 12 is provided with cover plate 13, described cover plate 13 is fixed on the outer surface of valve seat 1 by cover plate bolt 14.
Described seal ring 7 forms at least two layers of sheet metal 71 are adhesively fixed by bonding layer 72.Adopt sheet metal can ensure its resistance to high temperature, ensure that its sealing to a certain extent.
The packing ring chip type spring 15 of high temperature resistant type is provided with between described pair of elastic expansion valve seat 4 and valve seat 1.Packing ring chip type spring can around butterfly valve passage with 360 degree of directions swing valve rod pressure act under automatically find the secondary gap that is filled with a sealing and realize sealing, adopt packing ring chip type spring simultaneously, in use, packing ring chip type spring can swing around the butterfly valve diameter that circulates with 360 degree of directions; Certain buffer space can be improved for two elastic expansion valve seat, and have recuperation valve gate seal to cause the ability of distortion because of the change of temperature.
The tilt angle of the plane of inclination of described pair of elastic expansion valve seat is 20 degree of settings.Two elastic expansion valve seat acts on lower seal be pressed into two elastic expansion valve seat at valve rod, and two elastic expansion valve seat relies on the self-locking of frictional force to be held tightly tightly by seal ring and realizes sealing.
Be provided with a small―gap suture 16 between the plane of inclination 10 of described pair of elastic expansion valve seat 4 and spool 3, described seal ring 7 is pressed on the plane of inclination of two elastic expansion valve seat 4 through small―gap suture 16.
In this patent, comprise valve seat, two elastic expansion valve seat, packing ring chip type spring and panel nut composition, two elastic seat Sealing, two elastic seat can according to the distortion of Sealing; Filling and compensation sealing part is gone cause sealing pair because of temperature variation to be out of shape the gap of generation; Improve the sealability of butterfly valve, extend the working life of butterfly valve.
When overhauling this valve, be carry out seal pressure by access hole to regulate and more the changing jobs of Sealing, two elastic expansion valve seats of this butterfly valve have recuperation valve gate seal causes distortion ability because of the change of temperature; Such as: temperature raises and causes seal ring protruding, seal ring tilts point (see in Fig. 5) and is set to A point, valve is in closedown ground process, first contact with two elastic expansion valve seat, butterfly valve is continuing in the process of cutting out, the A point that the opposite side of packing ring chip type spring is pulled up on seal ring rotates, and the opposite side band on two elastic expansion valve seat can be got up realize sealing; Because the flexible A point of two elastic expansion valve seat is first by compressive strain, packing ring chip spring position swings to reduce the gap in seal ring; If: other one B of butterfly valve in closing process on valve seat is the point contacted with seal ring; The inflatable elastomeric distortion that butterfly valve continues to cut out two elastic expansion valve seat increases, and elastic force becomes large; A.B on valve seat 2 pressurizeds, butterfly valve continues to cut out again, and the A.B on valve seat 2 has been pulled outwardly, and we get a microcosmic body and carry out force analysis and see Fig. 3 in valve seat D point, sees that Fig. 4 closes shearing stress √ 3 τ and presses to seal ring with the direction that 31.8 ° are spent.Steel plate on seal ring also there occurs resiliently deformable; Because the sealing surface of this butterfly valve is tilted conical sealing surface, between sealing pair, frictional force has again the effect of self-locking, therefore, butterfly valve closes tighter and tighter, the resiliently deformable that seal ring occurs and the resiliently deformable that valve seat occurs are filled with Sealing because temperature raises the projection caused, and are out of shape by metallic elastic the nao-and micro relief that the soft seal of extruding can be filled with a sealing between pair again; Ensure that the sealing of butterfly valve, see Fig. 5.
Obviously, above-described embodiment of the present utility model is only for the utility model example is clearly described, and is not the restriction to mode of execution of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all mode of executions.And these belong to connotation of the present utility model the apparent change of extending out or variation still belong to protection domain of the present utility model.
Claims (5)
1. a sealed type dish valve, comprise valve seat, valve rod and spool, it is characterized in that: on described valve seat, be provided with two elastic expansion valve seat, described pair of elastic expansion valve seat is fixed on valve seat by pressing plate and panel nut, described spool is provided with seal ring, described pair of elastic expansion valve seat is arranged on the contacting point of described valve seat and described spool, the contacting point and compressing with described pair of elastic expansion valve seat that described seal ring is arranged on described spool and valve seat is sealed and matched, described spool is also provided with fixed plate, described fixed plate is fixed on spool by set screw nut, described seal ring is fixed on spool by fixed plate pressing, described pair of elastic expansion valve seat is provided with into the plane of inclination at 15 degree of-30 degree tilt angle, described seal ring is provided with identical with described shell fragment valve seat top incline angle of inclination inclination and compresses face, the inclination of described seal ring compresses face and is connected on the plane of inclination of described pair of elastic expansion valve seat, described valve seat is provided with on-bne repair mouth, described on-bne repair mouth is provided with cover plate, described cover plate is fixed on the outer surface of valve seat by cover plate bolt.
2. sealed type dish valve according to claim 1, is characterized in that: described seal ring forms at least two layers of sheet metal are adhesively fixed by bonding layer.
3. sealed type dish valve according to claim 2, is characterized in that: the packing ring chip type spring being provided with high temperature resistant type between described pair of elastic expansion valve seat and valve seat.
4. sealed type dish valve according to claim 3, is characterized in that: the tilt angle of the plane of inclination of described pair of elastic expansion valve seat is 20 degree of settings.
5. sealed type dish valve according to claim 4, is characterized in that: be provided with a small―gap suture between the plane of inclination of described pair of elastic expansion valve seat and spool, and described seal ring is pressed on the plane of inclination of two elastic expansion valve seat through small―gap suture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420541611.2U CN204175987U (en) | 2014-09-03 | 2014-09-03 | Sealed type dish valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420541611.2U CN204175987U (en) | 2014-09-03 | 2014-09-03 | Sealed type dish valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204175987U true CN204175987U (en) | 2015-02-25 |
Family
ID=52564798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420541611.2U Expired - Fee Related CN204175987U (en) | 2014-09-03 | 2014-09-03 | Sealed type dish valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204175987U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806771A (en) * | 2015-04-18 | 2015-07-29 | 温州巴尔阀门有限公司 | Pneumatic expansion butterfly valve |
-
2014
- 2014-09-03 CN CN201420541611.2U patent/CN204175987U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806771A (en) * | 2015-04-18 | 2015-07-29 | 温州巴尔阀门有限公司 | Pneumatic expansion butterfly valve |
| CN104806771B (en) * | 2015-04-18 | 2017-10-24 | 温州巴尔阀门有限公司 | A kind of pneumatic expansion formula butterfly valve |
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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: 20150225 Termination date: 20190903 |