CN209385700U - A kind of high-performance two-way hard seal spiral valve - Google Patents
A kind of high-performance two-way hard seal spiral valve Download PDFInfo
- Publication number
- CN209385700U CN209385700U CN201821741241.1U CN201821741241U CN209385700U CN 209385700 U CN209385700 U CN 209385700U CN 201821741241 U CN201821741241 U CN 201821741241U CN 209385700 U CN209385700 U CN 209385700U
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- China
- Prior art keywords
- valve seat
- valve
- floating
- shaft
- floating valve
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Abstract
The utility model discloses a kind of high-performance two-way hard seal spiral valves, including valve body, upper valve shaft, lower valve shaft, spool and floating valve seat；The valve body is provided with through valve body and in the upper shaft hole and lower shaft hole of same axis, upper valve shaft and lower valve shaft are separately mounted to upper shaft hole and lower shaft hole, the valve body is provided with lateral runner between upper shaft hole and lower shaft hole, described runner one end is provided with floating valve seat guide sleeve and gland, and gland is arranged in outermost end；The floating valve seat is mounted between floating valve seat guide sleeve and gland and transverse shifting, the floating valve seat periphery wall can be matched with floating valve seat guide sleeve and gland to realize sealing therebetween；The spool is mounted on valve shaft and lower valve shaft and can seal with realization is engaged on the inside of floating valve seat.The design is structurally reasonable, two-way hard seal, reliable for operation, corrosion-resistant, and improves service life and seal stability, when damage, as long as also replacing floating valve seat guide sleeve, reduces maintenance cost.
Description
Technical field
The utility model relates to a kind of spiral valves, more particularly to a kind of high-performance two-way hard seal spiral valve.
Background technique
The bidirectional rotary ball valve of existing market, such as patent 201510727331.X, valve seat is directly installed on valve body,
And under most of operating conditions, valve body seldom uses stainless steel, and majority uses cast steel or Nodular cast iron material, due to bulk material
Inevitably corrosion and corrosion in the medium, after a certain time of operation, will cause to hinder, very to " floating " of floating valve seat
To leaking in floating valve seat and valve body cooperation position, cause valve is two-way cannot seal.
Utility model content
The utility model is intended to solve above-mentioned technical problem at least to a certain extent.For this purpose, the utility model proposes one
The erosion-resisting high-performance two-way hard seal spiral valve of kind.
The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of high-performance two-way hard seal spiral
Valve, including valve body, upper valve shaft, lower valve shaft, spool and floating valve seat；The valve body is provided with through valve body and in same axis
Upper shaft hole and lower shaft hole, the upper valve shaft and lower valve shaft be separately mounted to upper shaft hole and lower shaft hole, and the valve body is in upper shaft hole
Lateral runner is provided between lower shaft hole, described runner one end is provided with floating valve seat guide sleeve and gland, the gland
It is arranged in outermost end；The floating valve seat be mounted between floating valve seat guide sleeve and gland and can transverse shifting therebetween, institute
Floating valve seat periphery wall is stated to be matched with floating valve seat guide sleeve, gland respectively to realize sealing；The spool is mounted in valve body
Upper valve shaft and lower valve shaft on and can with floating valve seat on the inside of engage realization seal.
Further, the lower shaft hole lower end is fixedly installed with end cap to seal lower valve shaft lower end.
Further, it is arranged fluted on the axial wall of the lower valve shaft lower end, snap ring, the lower shaft hole is installed in the groove
Inner wall corresponds to the positioning that snap ring is provided with corresponding step to realize snap ring to lower valve shaft.
Further, spring is horizontally installed between the floating valve seat guide sleeve and floating valve seat.
Further, the periphery wall that the floating valve seat is contacted with floating valve seat guide sleeve, gland respectively is embedded with sealing element.
Further, the floating valve seat and the matched periphery wall diameter ratio of floating valve seat guide sleeve and the matched periphery of gland
Wall diameter is small, is provided with discouraged gap between the floating valve seat guide sleeve and gland, and the valve body is provided between connection loses heart
The bleed passage of gap and exterior space.
Further, the spool periphery is spherical, is provided with and the matched taper in spool periphery on the inside of the floating valve seat
Joint surface is to realize sealing.
Further, the spool is fixedly connected by pin with upper valve shaft.
The beneficial effects of the utility model are: contact with floating valve seat by floating valve seat guide sleeve instead of floating valve seat and
Valve body is compared in the direct contact of valve body, and floating valve seat guide sleeve can be used less resistant material and be made, and reaches corrosion resistant
Erosion improves the service life and improves the effect of sealing stability, when damage, as long as also replacing floating valve seat guide sleeve, reduces
Maintenance cost.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the utility model close valve state mounting structure cross-sectional view；
Fig. 2 is enlarged view at the A of Fig. 1.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawings and examples.
Referring to figs. 1 to Fig. 2, a kind of high-performance two-way hard seal spiral valve of the utility model, including valve body 1, upper valve shaft
2, lower valve shaft 3, spool 4 and floating valve seat 5.
The valve body 1 is provided with through valve body 1 and in the upper shaft hole and lower shaft hole of same axis, and the upper valve shaft 2 is under
Valve shaft 3 is separately mounted to upper shaft hole and lower shaft hole.Preferably, in order to guarantee sealing and lower valve shaft 3 location and installation, the lower axle
Hole lower end is fixedly installed with end cap 31 to seal 3 lower end of lower valve shaft, and end cap 31 is fixed by screws in 1 lower end of valve body；It is described
It is arranged fluted on 3 lower end axial wall of lower valve shaft, snap ring 32 is installed, the lower shaft hole inner wall corresponds to snap ring 32 and sets in the groove
Corresponding step is equipped with to realize positioning of the snap ring 32 to lower valve shaft 3.Upper 2 top of valve shaft be provided with keyway with realize with accordingly
Power output device connection.
The valve body 1 is provided with lateral runner 11 between upper shaft hole and lower shaft hole, and described 11 one end of runner is provided with
Floating valve seat guide sleeve 7 and gland 6, the gland 6 are arranged in outermost end, and floating valve seat guide sleeve 7 is made of resistant material；
The floating valve seat 5 be mounted between floating valve seat guide sleeve 7 and gland 6 and can micro transverse shifting therebetween, floating valve seat
5, floating valve seat guide sleeve 7 and gland 6 are revolving body, and gland 6 is fixed by screws in valve body 1 and by floating valve seat guide sleeve
7 are limited between valve body 1 and floating valve seat guide sleeve 7.Floating valve seat guide sleeve 7 and 6 inner ring of gland be disposed as it is ladder-like with
Floating valve seat 5 is set to be limited in transverse movement between floating valve seat guide sleeve 7 and gland 6.In order to guarantee leakproofness, the floating
The periphery wall that valve seat 5 is contacted with floating valve seat guide sleeve 7, gland 6 respectively is embedded with sealing element 8, is also embedded with and floats on valve body 1
The sealing device of dynamic 7 outer wall of valve seat guide sleeve contact, sealing element 8 and sealing device, which can be sealing ring or other, has sealing function
The component of energy.5 periphery wall of floating valve seat matches respectively with floating valve seat guide sleeve 7, gland 6 to realize sealing.In Fig. 1 to
The right side is forward flow, is to the left reverse flow, and when forward and reverse flowing, 5 stress of floating valve seat is as shown in Fig. 2, by positive pressure
P2 and buffer brake P1, in order to increase the area that floating valve seat 5 is reversely pressurized, the floating valve seat 5 and floating valve seat guide sleeve
7 matched periphery wall diameter ratios and the matched periphery wall diameter of gland 6 are small, set between the floating valve seat guide sleeve 7 and gland 6
It is equipped with discouraged gap a, the valve body 1 is provided with the bleed passage 12 for being connected to lose heart gap a and exterior space.Floating valve seat 5 to
When moving left, air is flowed out from discouraged gap a and bleed passage 12, and when floating valve seat 5 moves right, air is from discouraged gap a
It is filled with bleed passage 12, floating valve seat 5 is avoided to hinder its movement due to air pressure inside.In addition, when floating valve seat 5 transports to the right
In gland 6, in order to which gland 6 does not reduce the compression area of P1 as far as possible, on the bearing surface of the gland 6 and floating valve seat 5
Cloth offers pilot slot.
The spool 4 is mounted on the upper valve shaft 2 and lower valve shaft 3 in valve body 1 and can be in closed position and floating valve seat 5
Flank conjunction and realize sealing, the spool 4 is fixedly connected by pin 21 with upper valve shaft 2,4 periphery of spool be in it is spherical, it is described
It is provided on the inside of floating valve seat 5 with the matched conical engagement face of 4 periphery spherical surface of spool to realize sealing, the cone of floating valve seat 5
Face reduces the compression area of P2, further increases the compression area of positive pressure P2 and the compression of reversed compression P1 in this way
The difference in areas of area.
Valve wide open in order to prevent, when P1 and P2 pressure is equal, floating valve seat 5 is close to left end under difference in areas effect, makes
At the extrusion friction during the valve of pass between spool and floating valve seat sealing, between the floating valve seat guide sleeve 7 and floating valve seat 5
It is horizontally installed with a coil spring 9, spring 9 is divided equally around the axis of floating valve seat guide sleeve 7 and floating valve seat 5 to be distributed.In valve volume
Determine in operating pressure, spring 9 pushes away floating valve seat 5 on gland 6.In addition 9 elastic force of spring is appropriate, does not influence floating valve seat 5 and exists
The movement of reverse media stream.
As shown in Fig. 2, in valve position, when by positive medium flow field, from left to right to the effect of the direction P2 pressure medium
In spool 4, at this moment the spherical surface of spool 4, which is against on the 5 inside conical surface of floating valve seat, completes sealing, and floating valve seat 5 is against on gland 6
Realize positioning, seal form is similar with common butterfly valve.
When reverse media stream, from right to left to the direction P1 pressure medium act on spool 4, push and to be connected with spool 4
Upper valve shaft 2 and 3 stress deformation of lower valve shaft, make spool 4 be moved to the left floating valve seat 5 to be detached from, due to the face at 5 both ends of floating valve seat
The discouraged gap a and bleed passage 12 being arranged between product moment and gland 6 and valve body 1 make floating valve seat 5 form piston effect,
Under the promotion of P1 pressure medium, floating valve seat 5 and 4 synchronous shift of spool, until the flexible deformation pole of upper valve shaft 2 and lower valve shaft 3
Extreme position, and the 5 inside conical surface of floating valve seat is made to contact holding sealing always with 4 periphery spherical surface of spool.
The design, which is contacted by floating valve seat guide sleeve 7 with floating valve seat 5, replaces floating valve seat 5 to connect with the direct of valve body 1
Valve body 1 is compared in touching, and floating valve seat guide sleeve 7 can be used less resistant material and be made, and is reached corrosion-resistant, is improved the service life
And the effect of sealing stability is improved, when damage, as long as also replacing floating valve seat guide sleeve 7, reduce maintenance cost.
Above embodiments are only to illustrate the technical solution of the utility model and are not intended to limit it, all without departing from this
Any modification of utility model spirit and scope or equivalent replacement should all cover the range in technical solutions of the utility model
It is interior.
Claims (8)
1. a kind of high-performance two-way hard seal spiral valve, it is characterised in that: including valve body (1), upper valve shaft (2), lower valve shaft (3),
Spool (4) and floating valve seat (5)；
The valve body (1) is provided with through valve body (1) and in the upper shaft hole and lower shaft hole of same axis, the upper valve shaft (2) and
Lower valve shaft (3) is separately mounted to upper shaft hole and lower shaft hole, and the valve body (1) is provided with lateral between upper shaft hole and lower shaft hole
Runner (11), described runner (11) one end are provided with floating valve seat guide sleeve (7) and gland (6), and the gland (6) is arranged most
Outer end；
The floating valve seat (5) be mounted between floating valve seat guide sleeve (7) and gland (6) and can transverse shifting therebetween, institute
Floating valve seat (5) periphery wall is stated to be matched with floating valve seat guide sleeve (7), gland (6) respectively to realize sealing；
On the upper valve shaft (2) and lower valve shaft (3) that the spool (4) is mounted in valve body (1) and can with floating valve seat (5) in flank
It closes and realizes sealing.
2. high-performance two-way hard seal spiral valve according to claim 1, it is characterised in that: the lower shaft hole lower end is fixed
End cap (31) is installed to seal lower valve shaft (3) lower end.
3. high-performance two-way hard seal spiral valve according to claim 1, it is characterised in that: lower valve shaft (3) lower end
It is arranged fluted on axial wall, is equipped in the groove snap ring (32), the lower shaft hole inner wall corresponds to snap ring (32) and is provided with phase
The step answered is to realize positioning of the snap ring (32) to lower valve shaft (3).
4. high-performance two-way hard seal spiral valve according to claim 1, it is characterised in that: the floating valve seat guide sleeve
(7) it is horizontally installed between floating valve seat (5) spring (9).
5. high-performance two-way hard seal spiral valve according to claim 1, it is characterised in that: the floating valve seat (5) point
The periphery wall not contacted with floating valve seat guide sleeve (7), gland (6) is embedded with sealing element (8).
6. high-performance two-way hard seal spiral valve according to claim 1, it is characterised in that: the floating valve seat (5) with
The matched periphery wall diameter ratio of floating valve seat guide sleeve (7) and the matched periphery wall diameter of gland (6) are small, and the floating valve seat is led
To discouraged gap (a) is provided between set (7) and gland (6), the valve body (1) is provided with the discouraged gap (a) of connection and outside
The bleed passage (12) in space.
7. high-performance two-way hard seal spiral valve according to claim 1, it is characterised in that: spool (4) periphery is in
Spherical surface, floating valve seat (5) inside are provided with the matched conical engagement face in spool (4) periphery to realize sealing.
8. high-performance two-way hard seal spiral valve according to claim 1, it is characterised in that: the spool (4) passes through pin
Nail (21) is fixedly connected with upper valve shaft (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821741241.1U CN209385700U (en) | 2018-10-25 | 2018-10-25 | A kind of high-performance two-way hard seal spiral valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821741241.1U CN209385700U (en) | 2018-10-25 | 2018-10-25 | A kind of high-performance two-way hard seal spiral valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209385700U true CN209385700U (en) | 2019-09-13 |
Family
ID=67867277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821741241.1U Expired - Fee Related CN209385700U (en) | 2018-10-25 | 2018-10-25 | A kind of high-performance two-way hard seal spiral valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209385700U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114321430A (en) * | 2021-12-31 | 2022-04-12 | 湖南泵阀制造有限公司 | Bidirectional hard sealing rotary ball valve |
-
2018
- 2018-10-25 CN CN201821741241.1U patent/CN209385700U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114321430A (en) * | 2021-12-31 | 2022-04-12 | 湖南泵阀制造有限公司 | Bidirectional hard sealing rotary ball valve |
| CN114321430B (en) * | 2021-12-31 | 2024-03-12 | 湖南泵阀制造有限公司 | Bidirectional hard sealing rotary ball valve |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190913 Termination date: 20211025 |