CN203516884U - Regulating valve with high erosion resistance - Google Patents
Regulating valve with high erosion resistance Download PDFInfo
- Publication number
- CN203516884U CN203516884U CN201320590724.7U CN201320590724U CN203516884U CN 203516884 U CN203516884 U CN 203516884U CN 201320590724 U CN201320590724 U CN 201320590724U CN 203516884 U CN203516884 U CN 203516884U
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- China
- Prior art keywords
- valve
- valve body
- rod
- regulating
- spool
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- Expired - Fee Related
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- 230000003628 erosive effect Effects 0.000 title abstract description 5
- 230000001105 regulatory effect Effects 0.000 title abstract 7
- 239000002131 composite material Substances 0.000 claims description 28
- 239000000945 filler Substances 0.000 claims description 18
- 239000004809 Teflon Substances 0.000 claims description 7
- 229920006362 Teflon® Polymers 0.000 claims description 7
- 238000012856 packing Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 abstract description 15
- 230000007797 corrosion Effects 0.000 abstract description 7
- 238000005260 corrosion Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 5
- -1 polytetrafluoroethylene Polymers 0.000 abstract description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 abstract description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 6
- 239000004696 Poly ether ether ketone Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229920002530 polyetherether ketone Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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- Lift Valve (AREA)
- Valve Housings (AREA)
- Details Of Valves (AREA)
Abstract
The utility model relates to a regulating control valve, and discloses a regulating valve with the high erosion resistance. The regulating valve comprises a valve body, a valve rod and a valve cover, wherein the valve cover is arranged on the upper portion of the valve body. One end of the valve rod is fixedly connected with a valve element of a curve plunger shape, and the other end of the valve rod penetrates through the valve cover and is connected with an executing mechanism. A combination valve base is arranged in an inner cavity of the valve body and in tight fit with the valve element. The surface of the valve element is lined with polytetrafluoroethylene, and the combination valve base is located and fixed through a valve sleeve. A filter net and a through hole are formed in the position, below the combination valve base, of the valve body. The valve cover is fixedly connected with the valve body through a stud and a nut, and a stuffing box and a spring are arranged at the joint of the valve cover and the valve rod. According to the regulating valve, the surface of the valve element is lined with polytetrafluoroethylene, and therefore the regulating valve has the high corrosion resistance; when the combination valve base and the valve element are sealed, soft sealing and hard sealing are achieved at the same time, medium erosion can be avoided under high pressure, zero leakage sealing of the valve is guaranteed, the regulating valve can be used for middle and high pressure occasions for a long time, and the automatic control requirement of new increasingly-developed processes is well met.
Description
Technical field
The utility model relates to a kind of adjusting control valve, and especially a kind of have a high abrasion-resistance modulating valve.
Background technique
Pneumatic diaphragm control valve is as the important component part of modulating valve, modulating valve in the market generally adopts traditional cast steel, stainless steel structure, there is the defects such as poor sealing performance, corrosion resistance and erosion be poor, cannot meet the automatic demand for control of growing low flow rate condition.
Summary of the invention
There is corrosion-resistant for modulating valve in prior art in the utility model, the shortcomings such as poor sealing have designed a kind of high abrasion-resistance modulating valve that has.
In order to solve the problems of the technologies described above, the utility model is solved by following technical proposals:
There is high abrasion-resistance modulating valve, the valve gap that comprises valve body, valve rod and valve body top, one end of valve rod is connected and fixed the spool of curve plug type, the other end of valve rod connects actuator through valve gap, body cavity is provided with composite valve seat, composite valve seat and spool closely cooperate, and spool face is lined with teflon.
As preferably, one end of valve rod is connected and fixed the spool of curve plug type, and the other end of valve rod connects actuator through valve gap.Spool adopts band curve plug type, Flow characteristics has two kinds, equal percentage and straight line, spool is fixedly connected on one end of valve rod, and the other end of valve rod stretches out valve gap by valve pocket pilot hole, is connected on actuator shaft, with moving up and down of movable valve plug, to change the orifice size size between spool and composite valve seat, regulate the rate-of flow flowing out through valve, during the downward complete shut-down of spool, soft, the hard sealing surface of composite valve seat seals simultaneously, guarantees valve zero leakage.
As preferably, spool face is lined with teflon, and the position of contact medium all adopts high-pressure injection moulding technique to be lined with withstand corrosion, ageing-resistant polytetrafluoroethylene floor, reaches anticorrosion, the effect of fluid erosion prevention.
As preferably, composite valve seat is reinforced TFE material valve seat or polyether-ether-ketone resin material valve seat.Composite valve seat is reinforced TFE material valve seat or polyether-ether-ketone resin material valve seat, when spool contacts with composite valve seat, can soft or hard seal simultaneously, and the washing away of medium while preventing high pressure, guarantees valve zero leakage sealing.
As preferably, the joint of composite valve seat and valve body is provided with the first seal ring, and valve pocket and valve body and valve gap joint are provided with the second seal ring, can strengthen sealing.
As preferably, the valve body of composite valve seat below is provided with filter screen and through hole, and through hole can reduce noise, and filter screen can filter out other impurity, prevents the corrosion of impurity to valve body.
As preferably, valve gap and valve body are connected and fixed by stud and nut, and valve gap and valve rod joint are provided with stuffing box and spring.Below stuffing box, increase a spring (pretightening force of spring needs to calculate), after filler wearing and tearing, due to the effect of spring, just can again compress filler, make its sealing, extend the life-span of filler.
As preferably, stuffing box comprises lower filler, middle filler, upper filler and Packing seat.Filler has good sealing and compared with friction coefficient, prevents medium leakage, and filler below is provided with Packing seat and plays the effect of supporting filler.
As preferably, in valve gap, stuffing box top is provided with lining and the screw being enclosed within on valve rod.Bushing device entangles valve rod in valve gap, and the leakage that reduces valve with this, reaches seal action.
According to the technical solution of the utility model, there is high abrasion-resistance modulating valve, the valve gap that comprises valve body, valve rod and valve body top, one end of valve rod is connected and fixed the spool of curve plug type, the other end of valve rod connects actuator through valve gap, body cavity is provided with composite valve seat, and composite valve seat and spool closely cooperate, and spool face is lined with teflon.Spool adopts band curve plug type, Flow characteristics has two kinds, equal percentage and straight line, spool face is lined with teflon, the position of contact medium all adopts high-pressure injection moulding technique to be lined with withstand corrosion, ageing-resistant polytetrafluoroethylene floor, composite valve seat is reinforced TFE material valve seat or polyether-ether-ketone resin material valve seat, spool is fixedly connected on one end of valve rod, the other end of valve rod stretches out valve gap by valve pocket pilot hole, be connected on actuator shaft, upper with movable valve plug, lower movement, to change the orifice size size between spool and composite valve seat, regulate the rate-of flow flowing out through valve, during the downward complete shut-down of spool, composite valve seat is soft, hard sealing surface seals simultaneously, guarantee valve zero leakage.The utility model, spool face is lined with teflon, has stronger corrosion resistance, soft, the sealing firmly simultaneously of composite valve seat and spool during sealing, the washing away of medium in the time of can preventing high pressure, guarantees valve zero leakage sealing.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Fig. 2 is stuffing box structure schematic diagram in Fig. 1.
The toponym that in accompanying drawing, each number designation refers to is as follows: 1-valve body, the 2-the first seal ring, 3-composite valve seat, 4-spool, 5-valve pocket, the 6-the second seal ring, 7-valve rod, 8-valve gap, 9-stud, 10-nut, 11-spring, 12-Packing seat, 13-lower filler, 14-middle filler, 15-upper filler, 16-lining, 17-screw, 18-stuffing box, 19-through hole, 20-filter screen.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail:
Embodiment 1
There is high abrasion-resistance modulating valve, as shown in Figure 1, the valve gap 8 that comprises valve body 1, valve rod 7 and valve body 1 top, one end of valve rod 7 is connected and fixed the spool 4 of curve plug type, the other end of valve rod 7 connects actuator through valve gap 8, valve body 23 inner chambers are provided with composite valve seat 3, and composite valve seat 3 closely cooperates with spool 4, and spool 4 surfaces are lined with teflon.Composite valve seat 3 is located and is fixed by valve pocket 5, and composite valve seat 3 is provided with the first seal ring 2 with the joint of valve body 1, and valve pocket 5 is provided with the second seal ring 6 with valve body 1 and valve gap 8 joints, and the valve body 1 of composite valve seat 3 belows is provided with filter screen 20 and through hole 19.Valve gap 8 is connected and fixed by stud 9 and nut 10 with valve body 1, valve gap 8 is provided with stuffing box 18 and spring 11 with valve rod 7 joints, stuffing box 18 comprises lower filler 13, middle filler 14, upper filler 15 and Packing seat 12, in valve gap 8, stuffing box 18 tops are provided with lining 16 and the screw 17 being enclosed within on valve rod 7.
Working procedure: spool 4 is fixedly connected on one end of valve rod 7, the other end of valve rod 7 stretches out valve gap 8 by valve pocket 5 pilot holes, be connected on actuator shaft, with moving up and down of movable valve plug 4, to change the orifice size size between spool 4 and composite valve seat 3, regulate the rate-of flow flowing out through valve, during spool 4 downward complete shut-down, spool 4 seals with soft, the hard sealing surface of composite valve seat 3 simultaneously.
In a word, the foregoing is only preferred embodiment of the present utility model, all equalizations of doing according to the utility model claim change and modify, and all should belong to the covering scope of the utility model patent.
Claims (7)
1. there is high abrasion-resistance modulating valve, the valve gap (8) that comprises valve body (1), valve rod (7) and valve body (1) top, one end of valve rod (7) is connected and fixed the spool (4) of curve plug type, the other end of valve rod (7) connects actuator through valve gap (8), valve body (23) inner chamber is provided with composite valve seat (3), composite valve seat (3) closely cooperates with spool (4), it is characterized in that: spool (4) surface is lined with teflon.
2. there is according to claim 1 high abrasion-resistance modulating valve, it is characterized in that: composite valve seat (3) is by valve pocket (5) location and fixing.
3. there is according to claim 2 high abrasion-resistance modulating valve, it is characterized in that: composite valve seat (3) is provided with the first seal ring (2) with the joint of valve body (1), valve pocket (5) is provided with the second seal ring (6) with valve body (1) and valve gap (8) joint.
4. there is according to claim 1 high abrasion-resistance modulating valve, it is characterized in that: the valve body (1) of composite valve seat (3) below is provided with filter screen (20) and through hole (19).
5. there is according to claim 1 high abrasion-resistance modulating valve, it is characterized in that: valve gap (8) is connected and fixed by stud (9) and nut (10) with valve body (1), valve gap (8) is provided with stuffing box (18) and spring (11) with valve rod (7) joint.
6. there is according to claim 5 high abrasion-resistance modulating valve, it is characterized in that: stuffing box (18) comprises lower filler (13), middle filler (14), upper filler (15) and Packing seat (12).
7. there is according to claim 1 high abrasion-resistance modulating valve, it is characterized in that: in valve gap (8), stuffing box (18) top is provided with lining (16) and the screw (17) being enclosed within on valve rod (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320590724.7U CN203516884U (en) | 2013-09-23 | 2013-09-23 | Regulating valve with high erosion resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320590724.7U CN203516884U (en) | 2013-09-23 | 2013-09-23 | Regulating valve with high erosion resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203516884U true CN203516884U (en) | 2014-04-02 |
Family
ID=50375816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320590724.7U Expired - Fee Related CN203516884U (en) | 2013-09-23 | 2013-09-23 | Regulating valve with high erosion resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203516884U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020466A (en) * | 2014-04-25 | 2015-11-04 | 济南大学 | High-pressure valve achieving automatic sealing |
| CN105240546A (en) * | 2015-10-12 | 2016-01-13 | 罗普阀业（宜兴）有限公司 | Pneumatic straight-stroke single-base control valve |
-
2013
- 2013-09-23 CN CN201320590724.7U patent/CN203516884U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020466A (en) * | 2014-04-25 | 2015-11-04 | 济南大学 | High-pressure valve achieving automatic sealing |
| CN105020466B (en) * | 2014-04-25 | 2017-04-19 | 济南大学 | High-pressure valve achieving automatic sealing |
| CN105240546A (en) * | 2015-10-12 | 2016-01-13 | 罗普阀业（宜兴）有限公司 | Pneumatic straight-stroke single-base control 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 |
Granted publication date: 20140402 Termination date: 20190923 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |