CN206439418U - Self-sealing stop valve - Google Patents
Self-sealing stop valve Download PDFInfo
- Publication number
- CN206439418U CN206439418U CN201621458999.5U CN201621458999U CN206439418U CN 206439418 U CN206439418 U CN 206439418U CN 201621458999 U CN201621458999 U CN 201621458999U CN 206439418 U CN206439418 U CN 206439418U
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- support
- valve
- self
- bonnet
- stop valve
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Abstract
The utility model proposes a kind of self-sealing stop valve, including integrally formed valve body, valve body has in inner chamber, body cavity is equipped with valve rod vertically, and valve stem tip, which is connected with, can fix the first support of valve rod, first support and valve body bolt connection；Body cavity is provided with bonnet that can be vertically movable in body cavity, and can stop the second support that bonnet is moved upwards, and the self sealss packing ring that can be fitted with bonnet is provided between bonnet and second support；First support and second support integrally connected.Self-sealing stop valve of the present utility model, reduce the pendant collet part in Wood formula self-sealing stop valve of the prior art, so as to be not necessarily the installation of pendant collet and take out reserved working space, the volume and weight of small-bore stop valve can be reduced, and reduce manufacturing cost simultaneously.
Description
Technical field
The utility model belongs to stop valve technical field, more particularly to a kind of self-sealing stop valve.
Background technology
Stop valve blocks class valve as one kind is extremely important, and its valve rod drives vertical center line of the flap along valve body to make
Vertical movement, makes valve clack sealing surface be brought into close contact with valve body sealing surface, so as to prevent medium along the slot leakage between sealing surface.
Applied to the stop valve on the various system pipelines of firepower power station, medium of circulation is the non-corruption such as water, the steam of HTHP in it
Corrosion medium, should have good self sealss performance.At present, self-sealing stop valve is mainly Wood formula self sealing structure, bag
Include pendant collet, wedge-shaped self sealss circle, when the pressure loading of medium is applied on bonnet, the upward jack-up of bonnet and to wedge-type seal
Pad applies pressure, realizes that bonnet is brought into close contact with wedge-shaped self sealss circle under the barrier effect of pendant collet, that is, realizes stop valve certainly
Sealing.But, when using Wood formula self sealing structure in small-bore stop valve, in order to pre- to installation, taking-up pendant collet
Enough spaces are stopped, small-bore stop valve inevitably increases valve space, correspondingly increases the weight of stop valve
And cost.
The U of Chinese patent CN 204533725 disclose the pressure self-sealing cut-off that a kind of each several part parts are rationally assembled
Include sealing ring, gasket ring, pendant collet, cover plate, bonnet, flange seat and pretension bolt in valve, including valve body, the valve body, it is described
Flange seat is connected through a screw thread with pretension bolt, and the flange seat is connected with divided ring, the sealing ring, gasket ring and pendant collet with
Valve body fits into the valve body by gap, and the original structure of traditional pressure self-sealing stop valve is improved and made
Modification, redesigns parts, reduces the size of the parts such as body cavity, sealing ring, gasket ring, bonnet, and close by compact
The design of reason, which reaches, mitigates the overall weight of stop valve, so as to reach cost-effective purpose.Pressure of the present utility model is from close
The valve body of envelope stop valve, which still needs, reserves enough spaces successfully to install and take out pendant collet, therefore is unfavorable for drop
Volume, weight and the manufacturing cost of low valve body.
Therefore, design it is a kind of can effectively reduce valve volume and the self-sealing stop valve of weight, for this area skill
It is very important for art personnel.
Utility model content
The utility model proposes one for the valve volume and the larger technical problem of weight of above-mentioned self-sealing stop valve
Valve volume and the self-sealing stop valve of weight can effectively be reduced by planting, and reduce the manufacturing cost of stop valve.
In order to achieve the above object, the technical solution adopted in the utility model is：
A kind of self-sealing stop valve, including integrally formed valve body, valve body, which has in inner chamber, body cavity, to be vertically arranged with
Valve rod, valve stem tip, which is connected with, can fix the first support of valve rod, first support and valve body bolt connection；Body cavity is provided with
Bonnet that can be vertically movable in body cavity, and the second support that bonnet is moved upwards, bonnet and second support can be stopped
Between be provided with what can be fitted with bonnet, self sealss packing ring, first support and second support integrally connected.
Preferably, first support lower end and second support form stair-stepping hollow circuit cylinder, first support lower end and the
The outer surface of two supports is engaged with body cavity, and the external diameter of second support is more than first support lower end, and second support includes
Support sector and stop part, the external diameter of support sector are identical with first support lower end, the bottom surface of stop part and the top phase of self sealss circle
Laminating, stop part is to be symmetrically disposed on the fan ring on the outside of support sector.
Preferably, the central angle of fan ring is 89 °.
Preferably, being provided with gasket ring between self sealss circle and second support.
Compared with prior art, advantage of the present utility model and good effect are：
1st, second of self-sealing stop valve of the present utility model, its first support played a supportive role and a barrier effect
Frame is integrated connection, the pendant collet part in Wood formula self-sealing stop valve of the prior art is reduced, so as to be not necessarily four
The reserved working space of installation and taking-up of open loop, can reduce the volume and weight of small-bore stop valve, and reduce system simultaneously
Cause this.
2nd, self-sealing stop valve of the present utility model, the stop part of its second support is be symmetrically disposed on support sector outer
The fan ring-shaped of side, on the premise of the self sealss performance of stop valve is ensured, further reduces the manufacturing cost of stop valve.
Brief description of the drawings
Fig. 1 is the structural representation of Wood formula self-sealing stop valve in the prior art；
Fig. 2 is the structural representation of self-sealing stop valve of the present utility model；
Fig. 3 is the A-A directions sectional view of second support in Fig. 2.
Above in each figure：1st, valve body；2nd, valve rod；3rd, bonnet；4th, self sealss circle；5th, first support；6th, second support；61、
Support sector；62nd, stop part；7 pendant collets.
Embodiment
Below, the utility model is specifically described by exemplary embodiment.It should be appreciated, however, that not having
In the case of being further discussed below, element, structure and features in an embodiment can also be advantageously incorporated into other implementations
In mode.
It is vertical with transverse direction, it is necessary to which the horizontal direction in explanation, accompanying drawing 1 is transverse direction in description of the present utility model
Direction be vertical direction；The orientation or position relationship of the instruction such as term " interior ", " outer ", " on ", " under ", "front", "rear" are base
In position relationship shown in the drawings, it is for only for ease of description the utility model and simplifies description, rather than indicate or imply institute
The device or element of finger must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this reality
With new limitation.In addition, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying and be relative
Importance.
Referring to Fig. 1, Fig. 1 is the structural representation of Wood formula self-sealing stop valve in the prior art.As shown in figure 1, Wood
Formula self-sealing stop valve is including valve body 1, the bonnet 3 that can be fluctuated, the self sealss circle 4 being brought into close contact with bonnet 3, and can
Stop the pendant collet 7 that self sealss circle 4 is moved up and down, when the pressure medium in the inner chamber of valve body 1 is by 3 upward jack-up of bonnet, bonnet 3
Motion upwards, under the barrier effect of pendant collet 7, self sealss circle 4 is brought into close contact with bonnet 3 so that realize stop valve from close
Sealing property.But, in order to which the installation to pendant collet and taking-up process reserve enough working spaces, inevitably need increase
The volume of stop valve body 1, for small-bore stop valve, adds the volume and weight of stop valve, and manufacturing cost.
Referring to Fig. 2, Fig. 2 is the structural representation of self-sealing stop valve of the present utility model.As shown in Fig. 2 a kind of from close
Stop valve, including valve body 1, valve rod 2, first support 5, bonnet 3, self sealss packing ring 4 and second support 6 are sealed, valve body 1 is integrated into
Type and with inner chamber, valve rod 2 is by the center of bonnet 3 and is arranged in the inner chamber of valve body 1 vertically, and top and the valve rod 2 of first support 5 are pushed up
End is fixedly connected, lower end and the bolt connection of valve body 1 of first support 5；The inner chamber of valve body 1 is provided with can be vertical in the inner chamber of valve body 1
The bonnet 3 of motion, and can stop the second support 6 that bonnet 3 is moved upwards, being provided between bonnet 3 and second support 6 can be with
The self sealss packing ring 4 that bonnet 3 fits；First support 5 and the integrally connected of second support 6.
In the present embodiment, self sealss packing ring 4 is wedge shape, and bonnet 3 is provided with the inclined-plane that can be fitted with self sealss packing ring 4.
Second of self-sealing stop valve of the present utility model, its first support 5 played a supportive role and a barrier effect
Frame 6 is integrated connection, the pendant collet part in Wood formula self-sealing stop valve of the prior art is reduced, so as to be not necessarily four
The reserved working space of installation and taking-up of open loop, can reduce the volume and weight of small-bore stop valve, and reduce manufacture simultaneously
Cost.
Specifically, when the pressure medium in the inner chamber of valve body 1 is by 3 upward jack-up of bonnet, bonnet 3 drive self sealss circle 4 to
Upper motion, because the bolt of first support 5 is installed on valve body 1, and second support 6 and the integrally connected of first support 5, second support
6 can play barrier effect to bonnet 3 and self sealss circle 4, make self sealss circle 4 be brought into close contact to realize stop valve with bonnet 3
Self sealss performance, meanwhile, second support 6 and the integrally connected of first support 5 reduce installation and the taking-up process of pendant collet 7,
The volume and weight of small-bore self-sealing stop valve can be reduced, and reduce manufacturing cost.
Referring to Fig. 3, Fig. 3 is the A-A directions sectional view of second support 6 in Fig. 2.As shown in figure 3, first support 5 and second
Support 6 forms stair-stepping hollow circuit cylinder, and first support 5 is engaged with the outer surface of second support 6 with the inner chamber of valve body 1, and
And the external diameter of second support 6 is more than first support 5, second support 6 includes support sector 61 and stop part 62, the external diameter of support sector 61
Identical with first support 5, the bottom surface and the top of self sealss circle 4 of stop part 62 fit；Stop part 62 is to be symmetrically disposed on
The fan ring in the outside of support sector 61, can not only meet the requirement being brought into close contact with self sealss circle 4, and can further reduce the
The weight of two supports 6, and then reduce the manufacturing cost of stop valve.
In the present embodiment, the central angle of fan ring is 89 °.
In order to strengthen the sealing effectiveness of self-sealing stop valve of the present utility model, set between self sealss circle 4 and second support 6
It is equipped with gasket ring.
Claims (4)
1. a kind of self-sealing stop valve, including integrally formed valve body (1), valve body (1), which has in inner chamber, valve body (1) inner chamber, to be erected
Valve rod (2) directly is provided with, valve rod (2) top, which is connected with, can fix the first support (5) of valve rod (2), first support (5) and valve body
(1) bolt connection；Valve body (1) inner chamber is provided with bonnet (3) that can be vertically movable in valve body (1) inner chamber, and can stop valve
The second support (6) that lid (3) is moved upwards, is provided with what can be fitted with bonnet (3) between bonnet (3) and second support (6)
Self sealss circle (4), it is characterised in that：First support (5) and second support (6) integrally connected.
2. self-sealing stop valve according to claim 1, it is characterised in that：First support (5) lower end and second support (6)
Stair-stepping hollow circuit cylinder is formed, first support (5) lower end and the outer surface of second support (6) match with valve body (1) inner chamber
Close, the external diameter of second support (6) is more than first support (5) lower end, and second support (6) includes support sector (61) and stop part
(62), the external diameter of support sector (61) is identical with first support (5) lower end, the bottom surface of stop part (62) and the top of self sealss circle (4)
End fits, and stop part (62) is to be symmetrically disposed on the fan ring on the outside of support sector (61).
3. self-sealing stop valve according to claim 2, it is characterised in that：The central angle for fanning ring is 89 °.
4. self-sealing stop valve according to claim 1, it is characterised in that：Between self sealss circle (4) and second support (6)
It is provided with gasket ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621458999.5U CN206439418U (en) | 2016-12-28 | 2016-12-28 | Self-sealing stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621458999.5U CN206439418U (en) | 2016-12-28 | 2016-12-28 | Self-sealing stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206439418U true CN206439418U (en) | 2017-08-25 |
Family
ID=59643073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621458999.5U Active CN206439418U (en) | 2016-12-28 | 2016-12-28 | Self-sealing stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206439418U (en) |
-
2016
- 2016-12-28 CN CN201621458999.5U patent/CN206439418U/en active Active
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