CN207750519U - Tire formula compensation sealing structure on valve - Google Patents
Tire formula compensation sealing structure on valve Download PDFInfo
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- CN207750519U CN207750519U CN201721429288.XU CN201721429288U CN207750519U CN 207750519 U CN207750519 U CN 207750519U CN 201721429288 U CN201721429288 U CN 201721429288U CN 207750519 U CN207750519 U CN 207750519U
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- seal
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- valve
- interconnecting piece
- mounting groove
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Abstract
The utility model is related to a kind of tire formula compensation sealing structures on valve, including seal, seal include interconnecting piece, sealing, and interconnecting piece and sealing are structure as a whole, and the shape of interconnecting piece is identical as the shape of seal mounting groove on valve seal seat；The interior of the interconnecting piece is equipped with hollow type pressure containment chamber；It is equipped with wedge-shaped preload face in the outside of interconnecting piece and sealing；The lower face of sealing is equipped with sealing surface；Interconnecting piece is equipped with the supercharging compensation channel being connected to pressure containment chamber, and being equipped with the supercharging being connected to supercharging compensation channel in the outside of interconnecting piece compensates mouth.The utility model is ingenious in design, change the conventional thought of valve sealing structure, it is off the beaten track, it is the innovation of gate valve Seal Design, achieving unexpected good result and being compared with traditional sealing structure has certain compensating action, after sealing is worn, reparation sealing effect can be carried out by ftercompction, the utility model product structure is relatively easy, process and maintenance is easy, therefore at low cost；And it is easy to use, sealing effect is good.
Description
Technical field
The utility model belongs to valve seal technical field, more particularly to a kind of tire formula compensation sealing on valve
Structure.
Background technology
It is well known that valve is the control unit in fluid delivery system, have cut-off, adjusting, water conservancy diversion, prevent countercurrently,
The functions such as voltage stabilizing, shunting or overflow pressure relief.It is product indispensable and irreplaceable in current industrial production.It is giving over long distances
The valve for being in normally open together is usually both provided in drainage pipeline, oil or natural-gas transfer pipeline at interval of certain distance
Door.Its effect is：Just in case just the valve at this segment pipe both ends is closed when being leaked in certain segment pipe, you can to leak
It is repaired or replaced.Though gate valve or shut-off valve sealing performance are good, keying speed is relatively slow, not when emergency occurs
It can close rapidly；Plug valve or ball valve keying speed are fast, but pressure resistance and leakproofness are relatively poor, generally also seldom in these occasions
Using；Butterfly valve is very fast with opening speed due to closing, sealing performance, so this occasion is generally used butterfly valve.But
If traditional butterfly valve is entrained with silt particle or sundries in fluid when closed, will there are gap, leakproofness between valve core plate and valve seat
It can will be affected.The major function of butterfly valve is the break-make of control pipeline, and the requirement for butterfly valve is, when opening in pipeline
Medium is smooth to be passed through, and when closure reaches reliable sealing, function-stable, stands adverse circumstances i.e. high temperature, bonding, corrosion and punching
Brush, has the performance of the sealed reliables such as anti-corrosion, wear-resisting, high temperature resistant.
In butterfly valve, closed butterfly valve it is with high content of technology, require it is stringent, widely used.Traditional sealed butterfly valve is valve rod
Valve plate rotation is driven, implements pipeline closed by opposite interference fit between sealing pair.When closing to final position, need to be driven
Device is given the great torque of valve rod and could be completed, and staring torque is typically 8-10 times of ventilation butterfly valve.It is due to sealing firmly
It is very stiff and demanding between metal and metal, completed in rotation closely sealed, technological requirement is high, and manufacture difficulty is big, it is difficult to produce high-quality
Measure A, B grades of excellent products.The current commonly upper metal sealing of spool, and rubber seal is installed on valve body, sealed butterfly valve exists
During opening and closing, due to manifold pressure height, seal pressure is big, and unlatching moment is also relatively large, and this power friction is not
But difficulty is brought to manufacture, sealing Accessory injury is also quite serious, not only needs often to repair and replace, has been greatly reduced sealing
The service life of butterfly valve, and an insoluble major issue for sealed butterfly valve at present.
A kind of heavy caliber gas-flow closure butterfly valve (application No. is 201410472313.7) is disclosed in the prior art, due to using
Elastic good gas-flow closure cushion rubber plays main seal using gas-flow closure cushion rubber, preferably solves this problem.But it passes through
User uses, and structure still has certain defect, complicated first, and such as " body top is equipped with inflating port, and bottom is equipped with cup-shaped
Valve foot is equipped with gas tube by the inflating port side, and described gas tube one end is connected to inflating port, the other end and valve outside of foot into
Stomata is connected to the inlet channel of valve rod lower end, and gas check valve is equipped among gas tube ".Obvious this structure is due to valve body tyre
There are gas tube and charge valve, not only manufacturing cost is big, and is easy in carrying or installation to break gas tube and charge valve；Again
It is that gas tube and charge valve tie point are more, there are the hidden danger of easy gas leakage effect air-tightness.In addition the inflation of the utility model is close
For sealing rubber ring after abrasion, wall thickness is thinning, is easy to after pressurization in weak place explosion, and then lose the effect of sealing
Fruit basically can not repair once explosion or sealing leak, sealing ring, which occurs, will lose sealing effect, cause the wave of resource
Take, the increase of maintenance cost；U-shaped sealing rubber ring is pressed from lateral surface by trim ring in the prior art, without any constraint, when
When increasing the internal pressure of sealing rubber ring, sealing ring has the tendency that sliding in slot sealing ring tankage；Once sealing ring slides, cause to seal
The discontinuity of circle, and then accelerate the abrasion of sealing ring.
Invention content
The utility model provides a kind of simple in structure, service life to solve technical problem present in known technology
At, maintenance cost is cheap, sealing effect is good for the tire formula compensation sealing structure on valve.
The utility model is adopted the technical scheme that solve technical problem present in known technology：
A kind of tire formula compensation sealing structure on valve, including seal, it is characterised in that：The seal includes
Interconnecting piece, sealing, the interconnecting piece and sealing are structure as a whole, the shape of the interconnecting piece with it is close on valve seal seat
The shape for sealing body mounting groove is identical；The interior of the interconnecting piece is equipped with hollow type pressure containment chamber, the center of the pressure containment chamber
Positioned at 1/4 to 1/2 place of seal whole height, and close to interconnecting piece side；It is equipped with wedge shape in the outside of interconnecting piece and sealing
Preload face；The lower face of the sealing is equipped with sealing surface；The interconnecting piece is equipped with the supercharging being connected to pressure containment chamber and mends
Channel is repaid, being equipped with the supercharging being connected to supercharging compensation channel in the outside of interconnecting piece compensates mouth.
The utility model can also use following technical measures：
The outside of the interconnecting piece, which is equipped on wedge-shaped preload face, is additionally provided with only lock station or only lock tooth.
The section of the interconnecting piece is circular configuration.
The section of the interconnecting piece is triangular structure.
The seal mounting groove that the valve seal seat is equipped with is annular through groove, and the interconnecting piece of the seal is inlaid in
In annular through groove.
Seal mounting groove on the valve seal seat is semi-open type mounting groove, and the inside of semi-open type mounting groove is wedge shape
Face structure；Seal clamping plate is equipped with by fastener in the inside of valve seal seat, the lower end of the seal clamping plate is equipped with
It is in the lozenges of symmetrical structure with the semi-open type mounting groove on valve seal seat, the valve seal seat is surrounded with seal clamping plate
Seal mounting groove.
The utility model has the advantages and positive effects of：It changes due to the adoption of the above technical scheme traditional hard close
Seal structure, there is no the large drag forces that spin friction cooperation generates to let out the blowing pressure when valve is opened for this sealing structure
It removes, elastic ring energy reserve release, valve plate sealing ring can smoothly be detached from sealing ring, valve is opened, and late gate rotates
To open position, torque greatlys save several times times, matter has occurred in the whole work process of valve compared with traditional hard seal butterfly valve
Variation.The butterfly valve seal precision of the utility model can reach high level.The utility model is ingenious in design, changes valve
The conventional thought of sealing structure, it is off the beaten track, it is the innovation of gate valve Seal Design, achieves unexpected good result, is worth
It must promote and apply.Being compared with traditional sealing structure can pass through with certain compensating action after sealing is worn
Ftercompction carries out reparation sealing effect, compare that sealing effect is more preferable, and the service life is longer with tradition hollow type sealing ring, in addition,
Utility model product structure is relatively easy, process and maintenance is easy, therefore at low cost；And it is easy to use, effect is good.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model embodiment 1；
Fig. 2 is 1 structural schematic diagram of Application Example；
Fig. 3 is the portions I enlarged drawing in 2；
Fig. 4 is the structural schematic diagram of the utility model embodiment 2；
Fig. 5 is 2 structural schematic diagram of Application Example；
Fig. 6 is the portions II enlarged drawing in 5；
Fig. 7 is 3 structural schematic diagram of the utility model embodiment；
Fig. 8 is 3 structural schematic diagram of Application Example；
Fig. 9 is the portions III enlarged drawing in Fig. 8.
In figure：1, seal；1-1, interconnecting piece；1-2, sealing；1-3, hollow type pressure containment chamber；1-4, wedge shape pre-tighten
Face；1-5, sealing surface；1-6, supercharging compensation channel；1-7, only lock station；2, supercharging compensation mouth；3, valve seal seat；3-1, sealing
Body mounting groove；3-10, limiting stand；4, seal clamping plate；4-1, lozenges；5, valve body；6, spool；8, seal chamber is overhauled.
Specific implementation mode
For that can further appreciate that the invention, features and effects of the utility model, the following examples are hereby given, and coordinates
Detailed description are as follows for attached drawing：
Embodiment 1, referring to Fig. 1, a kind of tire formula compensation sealing structure on valve, including seal 1 is described close
It includes interconnecting piece 1-1, sealing 1-2 to seal body, and the interconnecting piece and sealing are structure as a whole, the shape and valve of the interconnecting piece
The shape of seal mounting groove 3-1 on body seal receptacle 3 is identical；The interior of the interconnecting piece is equipped with hollow type pressure containment chamber 1-3,
The center of the pressure containment chamber is located at 1/4 to 1/2 place of seal whole height, and close to interconnecting piece side；The interconnecting piece
Section be circular configuration, the outside of interconnecting piece and sealing be equipped with wedge shape preload face 1-4；The lower face of the sealing is set
There is sealing surface 1-5；The interconnecting piece is equipped with the supercharging compensation channel 1-6 being connected to pressure containment chamber, in the outside of interconnecting piece
Mouth 2 is compensated equipped with the supercharging being connected to supercharging compensation channel；The seal mounting groove 3-1 that the valve seal seat 3 is equipped with is
The interconnecting piece of annular through groove, the seal is inlaid in annular through groove.
Application Example 1, please refers to Fig. 2 to 3, and on a kind of online maintenance three-way half ball valve with pressure, three-way half ball valve is main
Including valve body 5, spool 6, Switch seals 7 are installed by spherical crown on spool, the valve seal seat 3 in maintenance seal chamber 8
The seal mounting groove 3-1 that lower end is equipped with installs the seal 1 of 1 structure of above-described embodiment, the sealing in seal mounting groove
The interconnecting piece of body is inlaid in seal mounting groove 3-1, and the sealing 1-2 of the seal stretches out seal mounting groove, works as place
The sealing surface of seal is bonded with the metallic sealing section below Switch seals when inspecting state, and then realizes sealing,
Maintenance or the replacement operation of Switch seals can be carried out after sealing in maintenance seal chamber；After seal is worn,
It reveals, can not be overhauled when maintenance being caused to seal, supercharging compensation mouth can be opened at this time, compensating mouth air inlet by supercharging mends
Pressure, due to being equipped with wedge shape preload face 1-4 in the outside of interconnecting piece and sealing during ftercompction, seal will not be from sealing
It falls off in body mounting groove；Flexible deformation occurs due to the constraint of seal mounting groove, and then to sealing, to play sealing
The effect of compensation；When removing, or reducing furthermore it is also possible to which the blowing pressure is let out, it may be implemented quickly to open spool and maintenance be close
The contact for sealing the valve seal seat of intracavitary, rapidly enters normal aperture state.
Embodiment 2, referring to Fig. 4, a kind of tire formula compensation sealing structure on valve, including seal 1 is described close
It includes interconnecting piece 1-1, sealing 1-2 to seal body, and the interconnecting piece and sealing are structure as a whole, the shape and valve of the interconnecting piece
The shape of seal mounting groove 3-1 on body seal receptacle 3 is identical；The interior of the interconnecting piece is equipped with hollow type pressure containment chamber 1-3,
The center of the pressure containment chamber is located at 1/4 to 1/2 place of seal whole height, and close to interconnecting piece side；The interconnecting piece
Section be triangular structure, the outside of interconnecting piece and sealing be equipped with wedge shape preload face 1-4；The lower face of the sealing
Equipped with sealing surface 1-5；The interconnecting piece is equipped with the supercharging compensation channel 1-6 being connected to pressure containment chamber, in the outer of interconnecting piece
Side is equipped with the supercharging being connected to supercharging compensation channel and compensates mouth 2；Seal mounting groove on the valve seal seat 3 is semi-open type
The inside of mounting groove 3-2, semi-open type mounting groove are lozenges structure；It is equipped with by fastener in the inside of valve seal seat close
Body clamping plate 4 is sealed, the lower end of the seal clamping plate is equipped with the wedge with the semi-open type mounting groove on valve seal seat in symmetrical structure
Shape face 4-1, the valve seal seat surround seal mounting groove 3-1 with seal clamping plate.
Application Example 2, please refers to Fig. 5 to 6, and on a kind of online maintenance three-way half ball valve with pressure, three-way half ball valve is main
Including valve body, spool, Switch seals are installed by spherical crown on spool, the lower end of the valve seal seat in maintenance seal chamber is set
Some seal mounting grooves install the seal 1 of 2 structure of above-described embodiment, the connection of the seal in seal mounting groove
Valve seal seat described in portion 1-1 surrounds seal mounting groove 3-1 with seal clamping plate 4, and the sealing stretching of the seal is close
Body mounting groove 3-1 is sealed, the sealing surface of seal and the metallic sealing section below Switch seals when in inspecting state
Fitting, and then realize sealing, maintenance or the replacement operation of Switch seals can be carried out after sealing in maintenance seal chamber；When
It after seal is worn, reveals, can not be overhauled when maintenance being caused to seal, supercharging compensation mouth can be opened at this time, passed through
Supercharging compensation mouth air inlet ftercompction, during ftercompction due to the outside of interconnecting piece and sealing be equipped with wedge shape preload face 1-4 and
The lozenges of seal mounting groove both sides coordinates, and seal will not fall off out of seal mounting groove；Due to seal mounting groove
Constraint, and then to sealing occur flexible deformation, to play the role of sealing compensation；Furthermore it is also possible to which inflation is pressed
Power, which is let out, to be removed, or reduce when, may be implemented quickly open spool with maintenance seal chamber in valve seal seat contact, quickly into
Enter normal aperture state.
Embodiment 3, referring to Fig. 7, a kind of tire formula compensation sealing structure on valve, including seal 1, it is described close
It includes interconnecting piece 1-1, sealing 1-2 to seal body, and the interconnecting piece and sealing are structure as a whole, the shape and valve of the interconnecting piece
The shape of seal mounting groove 3-1 on body seal receptacle 3 is identical；The interior of the interconnecting piece is equipped with hollow type pressure containment chamber 1-3,
The center of the pressure containment chamber is located at 1/4 to 1/2 place of seal whole height, and close to interconnecting piece side；The interconnecting piece
Section be triangular structure, the outside of interconnecting piece and sealing be equipped with wedge shape preload face 1-4；It is set on the outside of the interconnecting piece
Have and is additionally provided with only lock station 1-7 or only lock tooth on wedge-shaped preload face；The lower face of the sealing is equipped with sealing surface 1-5；The company
Socket part is equipped with the supercharging compensation channel 1-6 being connected to pressure containment chamber, is equipped in the outside of interconnecting piece and compensates channel with supercharging
The supercharging of connection compensates mouth 2.
Application Example 3, please refers to Fig. 8 to 9, a kind of butterfly valve, including spool, valve body, and the valve body inner periphery is equipped with valve
Body seal receptacle 3, the valve seal seat are equipped in triangle annular sealing member mounting groove 3-1, seal mounting groove 3-1
Equipped with limiting stand 3-10, the interconnecting piece of above-mentioned seal is inlaid in seal mounting groove 3-1, and the outside of the interconnecting piece is equipped with wedge
It is additionally provided with only lock station 1-7 on shape preload face or only lock tooth is bonded with limiting stand 3-10, the sealing stretching of the seal is close
Seal body mounting groove 3-1；When butterfly valve is closed, the sealing of seal is bonded with the stainless steel sealing ring on the outside of valve plate
Realize sealing；After seal is worn, seal leakage is caused, supercharging compensation mouth can be opened at this time, compensated by being pressurized
Mouth air inlet ftercompction is pacified due to being equipped with wedge shape preload face 1-4 in the outside of interconnecting piece and sealing with seal during ftercompction
The lozenges of tankage both sides coordinates, and along with only lock station 1-7 or the only constraint between lock tooth and limiting stand 3-10, seal will not
It falls off out of seal mounting groove；Due to the constraint of seal mounting groove, flexible deformation occurs in pressure breaking-out sealing portion,
To play the role of sealing compensation；When removing, or reducing furthermore it is also possible to which the blowing pressure is let out, it may be implemented quickly to beat
The contact of valve opening core and the valve seal seat in maintenance seal chamber, rapidly enters normal aperture state.
In conclusion changing traditional hard sealing structure using above-mentioned technical proposal, there is no rotations for this sealing structure
Turn the large drag forces of frictional fit generation to let out the blowing pressure when valve is opened and remove, the release of elastic ring energy reserve, valve plate is close
Seal ring can smoothly be detached from sealing ring, and valve is opened, and late gate rotates to open position, torque and traditional hard seal butterfly valve
It compares, greatlys save several times, the variation of matter has occurred in the whole work process of valve.The butterfly valve seal precision of the utility model
High level can be reached.The utility model is ingenious in design, changes the conventional thought of valve sealing structure, off the beaten track, is
The innovation of gate valve Seal Design achieves unexpected good result, is worthy of popularization.It is compared with traditional sealing structure
With certain compensating action, after sealing is worn, reparation sealing effect can be carried out by ftercompction and tradition is hollow
Formula sealing ring compared to sealing effect it is more preferable, the service life is longer, in addition, the utility model product structure it is relatively easy, processing and
It safeguards and is easy, therefore is at low cost；And it is easy to use, sealing effect is good.
The above is only the preferred embodiment to the utility model, is not made in any form to the utility model
Limitation, it is every according to the technical essence of the utility model any simple modification made to the above embodiment, equivalent variations with
Modification, is all within the scope of the technical scheme of the utility model.
Claims (6)
1. a kind of tire formula compensation sealing structure on valve, including seal, it is characterised in that：The seal includes connecting
Socket part, sealing, the interconnecting piece and sealing are structure as a whole, shape and the sealing on valve seal seat of the interconnecting piece
The shape of body mounting groove is identical；The interior of the interconnecting piece is equipped with hollow type pressure containment chamber, the centre bit of the pressure containment chamber
In 1/4 to 1/2 place of seal whole height, and close to interconnecting piece side；It is pre- it to be equipped with wedge shape in the outside of interconnecting piece and sealing
Tight face；The lower face of the sealing is equipped with sealing surface；The interconnecting piece is equipped with the supercharging compensation being connected to pressure containment chamber
Channel is equipped with the supercharging being connected to supercharging compensation channel in the outside of interconnecting piece and compensates mouth.
2. the tire formula compensation sealing structure according to claim 1 on valve, it is characterised in that：The interconnecting piece
Outside, which is equipped on wedge-shaped preload face, is additionally provided with only lock station or only lock tooth.
3. the tire formula compensation sealing structure according to claim 1 on valve, it is characterised in that：The interconnecting piece
Section is circular configuration.
4. the tire formula compensation sealing structure according to claim 1 on valve, it is characterised in that：The interconnecting piece
Section is triangular structure.
5. the tire formula compensation sealing structure according to claim 1 on valve, it is characterised in that：The valve seal
The seal mounting groove that seat is equipped with is annular through groove, and the interconnecting piece of the seal is inlaid in annular through groove.
6. the tire formula compensation sealing structure according to claim 1 on valve, it is characterised in that：The valve seal
Seal mounting groove on seat is semi-open type mounting groove, and the inside of semi-open type mounting groove is lozenges structure；In valve seal seat
Inside seal clamping plate is equipped with by fastener, the lower end of the seal clamping plate be equipped with it is half-open on valve seal seat
Formula mounting groove is in the lozenges of symmetrical structure, and the valve seal seat surrounds seal mounting groove with seal clamping plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721429288.XU CN207750519U (en) | 2017-10-30 | 2017-10-30 | Tire formula compensation sealing structure on valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721429288.XU CN207750519U (en) | 2017-10-30 | 2017-10-30 | Tire formula compensation sealing structure on valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207750519U true CN207750519U (en) | 2018-08-21 |
Family
ID=63146804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721429288.XU Active CN207750519U (en) | 2017-10-30 | 2017-10-30 | Tire formula compensation sealing structure on valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN207750519U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606225A (en) * | 2017-10-30 | 2018-01-19 | 天津塘沽瓦特斯阀门有限公司 | Tire formula compensation sealing structure on valve |
-
2017
- 2017-10-30 CN CN201721429288.XU patent/CN207750519U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606225A (en) * | 2017-10-30 | 2018-01-19 | 天津塘沽瓦特斯阀门有限公司 | Tire formula compensation sealing structure on valve |
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