CN203516754U - Blocking-preventing regulating valve - Google Patents
Blocking-preventing regulating valve Download PDFInfo
- Publication number
- CN203516754U CN203516754U CN201320588948.4U CN201320588948U CN203516754U CN 203516754 U CN203516754 U CN 203516754U CN 201320588948 U CN201320588948 U CN 201320588948U CN 203516754 U CN203516754 U CN 203516754U
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- valve
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- blocking
- fluid flow
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Abstract
The utility model relates to a regulating control valve, and discloses a blocking-preventing regulating valve. The blocking-preventing regulating valve comprises a valve body, a valve rod and a bonnet arranged on the upper portion of the valve body, wherein one end of the valve rod is fixedly connected with a curve plunger type valve plug, the other end of the valve rod penetrates through the bonnet, and is connected with an actuator, a combined valve seat is arranged in an inner cavity of the valve body, the combined valve seat and the valve plug are in close fit, filters are arranged in a fluid inflow channel, the caliber of the fluid inflow channel is smaller than that of a fluid outflow channel, a flushing sweeping connector is further arranged in the fluid inflow channel, and a stuffing box and a spring are arranged at the position of connection between the bonnet and the valve rod. According to the blocking-preventing regulating valve, the filters in the fluid inflow channel is used for preventing impurities from flowing into a fluid channel to cause blocking; due to the fact that the caliber of the fluid inflow channel is smaller than that of the fluid outflow channel, fluid can smoothly flow, and blocking cannot be easily caused; the flushing sweeping connector can be used for flushing inflow fluid, the quantity of inflow impurities is reduced, the blocking-preventing regulating valve is prevented from being blocked, and thus the requirement of gradually-developing new technologies for automatic control can be better met.
Description
Technical field
The utility model relates to a kind of adjusting control valve, especially a kind of Anti-blockage modulating valve.
Background technique
Pneumatic diaphragm control valve is as the important component part of modulating valve, the susceptible to plugging situation of modulating valve ubiquity in the market, for example, initial operation stage after newly put into operation system and overhaul, due to the welding slag in road, iron rust, bits etc. are at restriction, guiding position, in bottom flange equalizing orifice, result in blockage or block, this is modal fault, modulating valve cannot normally be worked, even affect the normal operation of other equipment in pipe-line system, in addition, when the medium that contains solid particle adopts common valve to regulate, through the restriction of being everlasting, guiding place is stopped up, to small-bore modulating valve, especially super-small flow regulating valve, its throttle clearance spy is little, slag thing a little in medium.The effective ways that at present there is no all the time thoroughly to solve blocking problem, cannot carry out long-term highi degree of accuracy adjusting and long lifetime, safe handling.
Summary of the invention
The utility model exists and easily stops up shortcoming for modulating valve in prior art, has designed a kind of Anti-blockage modulating valve.
In order to solve the problems of the technologies described above, the utility model is solved by following technical proposals:
Anti-blockage modulating valve, comprise the valve gap on valve body, valve rod, valve body top and the fluid flow channel of valve body both sides and fluid flow pass, 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 fluid flow channel is provided with filter, and fluid flow channel bore is less than fluid flow pass bore.
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, fluid flow channel is provided with filter, and fluid flow channel bore is less than fluid flow pass bore.Filter can filter out the impurity in medium, prevent that impurity from flowing into the obstruction causing in fluid passage, the bore of fluid flow channel is less than the bore of fluid flow pass, can increase the pressure of fluid flow channel mouth, fluid is flowed unobstructed, be difficult for stopping up, can reduce the flow velocity that fluid flows out simultaneously, avoid medium washing away valve body.
As preferably, fluid flow channel is also provided with punching and sweeps interface.Punching is swept interface and can be rinsed the fluid entering, and reduces the inflow of impurity, and the impurity that filter can be filtered out clears out simultaneously.
As preferably, composite valve seat is located by valve pocket and is fixed.Employing is installed without screw thread, simple in structure.
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, 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, Anti-blockage modulating valve, comprise the valve gap on valve body, valve rod, valve body top and the fluid flow channel of valve body both sides and fluid flow pass, 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, fluid flow channel is provided with filter, fluid flow channel bore is less than fluid flow pass bore, and fluid flow channel is also provided with punching and sweeps interface.Spool adopts band curve plug type, and Flow characteristics has two kinds, equal percentage and straight line, 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, regulates the rate-of flow flowing out through valve.The utility model, filter can filter out the impurity in medium, prevent that impurity from flowing into the obstruction causing in fluid passage, the bore of fluid flow channel is less than the bore of fluid flow pass, can increase the pressure of fluid flow channel mouth, fluid is flowed unobstructed, be difficult for stopping up, punching is swept interface and can be rinsed the fluid entering, and reduces the inflow of impurity, the impurity that filter can be filtered out clears out simultaneously, reduces valve blockage.
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-filter, 20-fluid flow channel, 21-fluid flow pass, interface is swept in 22-punching.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail:
Embodiment 1
Anti-blockage modulating valve, as shown in Figure 1, comprise the valve gap 8 on valve body 1, valve rod 7, valve body 1 top and fluid flow channel 20 and the fluid flow pass 21 of valve body 1 both sides, 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, composite valve seat 3 closely cooperates with spool 4, fluid flow channel 20 is provided with filter 19, fluid flow channel 20 bores are less than fluid flow pass 21 bores, and fluid flow channel 20 is also provided with punching and sweeps interface 22.Composite valve seat 3 is located and is fixed by valve pocket 5, 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 joints, 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, and 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. Anti-blockage modulating valve, comprise valve body (1), valve rod (7), the fluid flow channel (20) of the valve gap (8) on valve body (1) top and valve body (1) both sides and fluid flow pass (21), 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: fluid flow channel (20) is provided with filter (19), fluid flow channel (20) bore is less than fluid flow pass (21) bore.
2. Anti-blockage modulating valve according to claim 1, is characterized in that: fluid flow channel (20) is also provided with punching and sweeps interface (22).
3. Anti-blockage modulating valve according to claim 1, is characterized in that: composite valve seat (3) is by valve pocket (5) location and fixing.
4. Anti-blockage modulating valve according to claim 3, is characterized in that: 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) joint.
5. Anti-blockage modulating valve according to claim 1, is characterized in that: valve gap (8) is connected and fixed by stud (9) and nut (10) with valve body (1), and valve gap (8) and valve rod (7) joint are provided with stuffing box (18) and spring (11).
6. Anti-blockage modulating valve according to claim 5, is characterized in that: stuffing box (18) comprises lower filler (13), middle filler (14), upper filler (15) and Packing seat (12).
7. Anti-blockage modulating valve according to claim 1, 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 |
|---|---|---|---|
| CN201320588948.4U CN203516754U (en) | 2013-09-23 | 2013-09-23 | Blocking-preventing regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320588948.4U CN203516754U (en) | 2013-09-23 | 2013-09-23 | Blocking-preventing regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203516754U true CN203516754U (en) | 2014-04-02 |
Family
ID=50375686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320588948.4U Expired - Fee Related CN203516754U (en) | 2013-09-23 | 2013-09-23 | Blocking-preventing regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203516754U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151672A (en) * | 2015-03-30 | 2016-11-23 | 安徽春辉仪表线缆集团有限公司 | A kind of thermal-insulating type regulation valve |
| CN108413119A (en) * | 2018-04-10 | 2018-08-17 | 鹤山市未来我来温控卫浴有限公司 | A kind of antifouling stifled anti-clamping thermostatic valve core |
-
2013
- 2013-09-23 CN CN201320588948.4U patent/CN203516754U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151672A (en) * | 2015-03-30 | 2016-11-23 | 安徽春辉仪表线缆集团有限公司 | A kind of thermal-insulating type regulation valve |
| CN108413119A (en) * | 2018-04-10 | 2018-08-17 | 鹤山市未来我来温控卫浴有限公司 | A kind of antifouling stifled anti-clamping thermostatic valve core |
| CN108413119B (en) * | 2018-04-10 | 2023-05-05 | 未来我来卫浴科技(广东)有限公司 | Anti-blocking anti-clamping constant temperature valve core |
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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: 20140402 Termination date: 20190923 |