CN202158200U - Strong corrosion resistant single-seat adjusting valve - Google Patents
Strong corrosion resistant single-seat adjusting valve Download PDFInfo
- Publication number
- CN202158200U CN202158200U CN2011202485282U CN201120248528U CN202158200U CN 202158200 U CN202158200 U CN 202158200U CN 2011202485282 U CN2011202485282 U CN 2011202485282U CN 201120248528 U CN201120248528 U CN 201120248528U CN 202158200 U CN202158200 U CN 202158200U
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- valve
- seat
- seat adjusting
- strong corrosion
- valve rod
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Abstract
The utility model provides a strong corrosion resistant single-seat adjusting valve, which resolves the problems of leakage, short service life and the like of the single-seat adjusting valve in use. The strong corrosion resistant single-seat adjusting valve comprises a valve body, a valve seat, a valve core, a valve cover, a valve rod, fillers, a filler pressing cover and a pressing plate. The valve cover is provided with a through slot for the valve rod to penetrate through. One end of the valve rod is connected with the valve core, and the other end of the valve rod extends out of the valve cover. The valve body and the valve seat are in an integral structure and made ofXDS special alloy materials. The valve core and the valve rod are also made of the XDS special alloy materials. The valve core is arranged on an S-shaped flow channel of the valve body. The original valve seat and the original valve rod are integrated, thereby reducing influence on valve leakage caused by machining errors and assembly errors. Because the valve body utilizes design of the S-shaped flow channel, pressure difference on two sides of the valve core is small, media flows stably, and erosion of the media on the surface of the valve core is reduced. The XDS special alloy materials guarantee corrosion rate of valve materials contacted with the media to be small, thereby further reducing possibility of leakage and prolonging service life of the product.
Description
Technical field
The utility model relates to a kind of single-seat adjusting valve, is specifically related to a kind of single-seat adjusting valve of being able to bear strong corrosion.
Background technique
Modulating valve has another name called control valve, in industrial automation process control field, through accepting to regulate the control signal of control unit output, removes to change the final control unit of process parameters such as rate-of flow, pressure, temperature, liquid level by power operation.In the higher control system of automaticity; Modulating valve is usually as the terminal actuating device of automatic regulating system; Receive control signal and according to desired direction of control signal and size; Through changing the resistance system that spool stroke changes valve, reach the purpose of regulating flow, the action sensitivity direct relation of modulating valve the quality of regulating system.Modulating valve often uses under hyperbaric environment, and its working method is that the throttling action of utilizing flow area between spool and the valve seat to dwindle then sudden enlargement more suddenly reduces hydrodynamic pressure.The existing single-seat adjusting valve of being able to bear strong corrosion adopts lining fluorine single-seat adjusting valve basically, the direct erosion spool of flowing medium, and velocity of medium is high, and is big to the spool face erosion, causes spool, valve seat distortion to leak, thereby shortened the working life of modulating valve.And the spool of single-seat adjusting valve is uneven form, and modulating valve needs very big driving source just can overcome the unbalanced force that is produced by medium, and long-term use not only can make modulating valve leak at valve rod and valve body place, and has influenced the degree of regulation of control system.
Summary of the invention
For overcoming problem in the background technique, avoid existing single-seat adjusting valve to have leakage in use, influence the working life of single-seat adjusting valve, the utility model provides a kind of single-seat adjusting valve of being able to bear strong corrosion.
The technological scheme of the utility model is: a kind of single-seat adjusting valve of being able to bear strong corrosion; Comprise valve body, valve seat, spool, valve gap, valve rod, filler, Gland and pressing plate; Described valve gap is provided with the groove that supplies valve rod to pass, and valve rod one end connects spool, and the other end stretches out outside the valve gap; Filler is filled out in the stuffing box that is placed on valve gap and valve rod formation; Described valve body and valve seat are integral structure and employing XDS special alloy material, and described spool and valve rod also adopt XDS special alloy material, and described spool is located on the S shape runner of valve body.
As a kind of improvement of the utility model, the bottom of described stuffing box is provided with sealed gland part.
Another kind as the utility model improves, and the inner and outer wall of described sealed gland part is equipped with circular groove, is provided with O type circle in the described circular groove.
As a kind of improvement of the utility model, described pressing plate is provided with belleville spring.
As a kind of improvement of the utility model, the coaxial guiding groove that is provided with in groove bottom on the said valve gap is arranged with the guide sleeve suitable with guiding groove on the described valve rod, and described guide sleeve adopts the XDS special alloy.
As a kind of improvement of the utility model, described filler is the V-type filler.
The beneficial effect of the utility model is, with original valve seat, the valve body formula structure that is integrated, reduced processing, assembly error to the valve leakage effect.Because valve body adopts the design of S shape runner, makes the pressure reduction of spool both sides little, media flow is stable; Thereby reduced the erosion of medium to spool face; The XDS special alloy has guaranteed that the valve material corrosion rate that contacts with medium is minimum, further reduces the possibility of leaking, the working life of having improved product.
Description of drawings
Accompanying drawing 1 is the utility model embodiment's a structural representation.
Accompanying drawing 2 partly cuts open figure for the amplification of sealed gland part among the utility model embodiment.
Among the figure, valve body 1, spool 2, valve gap 3, valve rod 4, sealed gland part 5, V-type filler 6, Gland 7, pressing plate 8, belleville spring 9, guide sleeve 10, valve seat 11, O type circle 12.
Embodiment
Below in conjunction with accompanying drawing the utility model embodiment is described further:
By shown in Figure 1, a kind of single-seat adjusting valve of being able to bear strong corrosion comprises valve body 1, valve seat 11, spool 2, valve gap 3, valve rod 4, filler, Gland 7 and pressing plate 8; Described valve gap 3 is provided with the groove that supplies valve rod 4 to pass; Described valve rod 4 one ends connect spool 2, and the other end stretches out outside the valve gap 3, and filler is filled out in the stuffing box that is placed on valve gap 3 and valve rod 4 formation; Described valve body 1 and valve seat 11 be that (this material is my house journal's technical products with XDS special alloy material for integral structure and employing; On March 16th, 2005, Chinese patent discloses a kind of rare-earth element modified special stainless steel, and its patent No. is ZL 200410041193.1); Described spool 2 is located on the S shape runner of valve body 1, and wherein spool 2 also adopts XDS special alloy material with valve rod 4 parts such as grade.Original valve seat, valve body are integrated, have reduced processing, assembly error the valve leakage effect.Because valve body adopts the design of S shape runner, makes the pressure reduction of spool both sides little, media flow is stable, thereby has reduced the erosion of medium to spool face.The XDS special alloy has guaranteed that the valve material corrosion rate that contacts with medium is minimum, further reduces the possibility of leaking.
By shown in Figure 2, the bottom of described stuffing box is provided with sealed gland part 5, and the inner and outer wall of described sealed gland part 5 is equipped with circular groove, is provided with O type circle 12 in the described circular groove.The stuffing box place adopts the double sealing structure of sealed gland part and filler, makes the probability that leaks outside of medium minimum.
Described pressing plate 8 is provided with belleville spring 9, and pressing plate 8 is located on the Gland 7, and described Gland 7 is located on the filler.When filler had wearing and tearing, the wearing and tearing that the belleville spring that be equipped with at the pressing plate place can be filler provided elastic compensating, thereby guaranteed the long-time sealing at filler place.
Described filler is a V-type filler 6, and the coaxial guiding groove that is provided with in groove bottom on the described valve gap 3 is arranged with the guide sleeve 10 suitable with guiding groove on the described valve rod 4, and described guide sleeve 10 adopts XDS special alloy material.Valve gap and V-type filler have guide function, can improve the quality of fit of spool and valve body, reduce leakage rate, and the working stability of valve must be improved, thus the working life of having improved product.
Every technician's notice: though the utility model is described according to above-mentioned embodiment; But the invention thought of the utility model is not limited in this model utility; The repacking of any utilization inventive concept all will be included in this patent scope of patent protection.
Claims (6)
1. single-seat adjusting valve of being able to bear strong corrosion; Comprise valve body (1), valve seat (11), spool (2), valve gap (3), valve rod (4), filler, Gland (7) and pressing plate (8); Described valve gap (3) is provided with the groove that supplies valve rod (4) to pass; Valve rod (4) one ends connect spool (2); The other end stretches out outside the valve gap (3), and filler is filled out in the stuffing box that is placed on valve gap (3) and valve rod (4) formation, it is characterized in that: described valve body (1) is integral structure and employing XDS special alloy material with valve seat (11); Described spool (2) and valve rod (4) also adopt XDS special alloy material, and described spool (2) is located on the S shape runner of valve body (1).
2. the single-seat adjusting valve of being able to bear strong corrosion according to claim 1 is characterized in that the bottom of described stuffing box is provided with sealed gland part (5).
3. the single-seat adjusting valve of being able to bear strong corrosion according to claim 2 is characterized in that the inner and outer wall of described sealed gland part (5) is equipped with circular groove, is provided with O type circle (12) in the described circular groove.
4. the single-seat adjusting valve of being able to bear strong corrosion according to claim 1 is characterized in that described pressing plate (8) is provided with belleville spring (9).
5. the single-seat adjusting valve of being able to bear strong corrosion according to claim 1; It is characterized in that the coaxial guiding groove that is provided with in groove bottom on the described valve gap (3); Be arranged with the guide sleeve suitable with guiding groove (10) on the described valve rod (4), described guide sleeve (10) adopts the XDS special alloy.
6. the single-seat adjusting valve of being able to bear strong corrosion according to claim 1 is characterized in that described filler is V-type filler (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202485282U CN202158200U (en) | 2011-07-13 | 2011-07-13 | Strong corrosion resistant single-seat adjusting valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202485282U CN202158200U (en) | 2011-07-13 | 2011-07-13 | Strong corrosion resistant single-seat adjusting valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202158200U true CN202158200U (en) | 2012-03-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202485282U Expired - Lifetime CN202158200U (en) | 2011-07-13 | 2011-07-13 | Strong corrosion resistant single-seat adjusting valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202158200U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105751515A (en) * | 2016-04-26 | 2016-07-13 | 杭州研智科技有限公司 | Detachable 3D printer spray head |
| CN105815649A (en) * | 2016-04-20 | 2016-08-03 | 杭州娃哈哈科技有限公司 | Pipe network for producing electromagnetic anti-scaling sterilizing type beverage |
| CN105859082A (en) * | 2016-03-15 | 2016-08-17 | 浙江海洋学院 | Fermentation and deodorizing apparatus and method for sludge |
| CN105922579A (en) * | 2016-04-26 | 2016-09-07 | 杭州研智科技有限公司 | 3d printer spray head structure |
| CN106807182A (en) * | 2016-05-24 | 2017-06-09 | 衢州锐思机械科技有限公司 | A kind of sludge fermentation odor removal for setting suspension ring |
-
2011
- 2011-07-13 CN CN2011202485282U patent/CN202158200U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105859082A (en) * | 2016-03-15 | 2016-08-17 | 浙江海洋学院 | Fermentation and deodorizing apparatus and method for sludge |
| CN105815649A (en) * | 2016-04-20 | 2016-08-03 | 杭州娃哈哈科技有限公司 | Pipe network for producing electromagnetic anti-scaling sterilizing type beverage |
| CN105751515A (en) * | 2016-04-26 | 2016-07-13 | 杭州研智科技有限公司 | Detachable 3D printer spray head |
| CN105922579A (en) * | 2016-04-26 | 2016-09-07 | 杭州研智科技有限公司 | 3d printer spray head structure |
| CN106807182A (en) * | 2016-05-24 | 2017-06-09 | 衢州锐思机械科技有限公司 | A kind of sludge fermentation odor removal for setting suspension ring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120307 |
|
| CX01 | Expiry of patent term |