CN202280852U - Anti-washout flexible seal single-seat regulating valve - Google Patents
Anti-washout flexible seal single-seat regulating valve Download PDFInfo
- Publication number
- CN202280852U CN202280852U CN 201120377877 CN201120377877U CN202280852U CN 202280852 U CN202280852 U CN 202280852U CN 201120377877 CN201120377877 CN 201120377877 CN 201120377877 U CN201120377877 U CN 201120377877U CN 202280852 U CN202280852 U CN 202280852U
- Authority
- CN
- China
- Prior art keywords
- valve
- spool
- seat
- soft seal
- coaxial
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to an anti-washout flexible seal single-seat regulating valve which comprises a valve body, a valve cover, a valve seat, a flexible seal gasket, a valve rod and a valve plug, wherein the valve body and the valve cover are coaxially connected; the lower end of the valve rod in the valve body is coaxially provided with the valve plug; the valve seat is coaxially arranged on the valve body and between the lower part of the valve plug and the valve body; a seal is installed between the valve seat and the valve body; the outer edge of the valve plug, which is in contact with the valve seat, is fixedly provided with the flexible seal gasket; the valve plug and the valve seat are in sealing fit by the flexible seal gasket; the valve plug is driven by the valve rod to regulate, open and close the valve; and a flow guidance boss ring is coaxially arranged at the lower part of the valve plug on the lower end surface of the flexible seal gasket in contact with the valve seat. The regulating valve has the beneficial effects that a medium can be prevented from directly washing a non-metal sealing surface, the effect is more obvious under the working condition of high pressure difference, and the service life of the valve can be effectively prolonged.
Description
Technical field:
The utility model belongs to the modulating valve in the valve class, especially a kind of erosion soft seal single-seat adjusting valve.
Background technique:
At present, the soft seal single-seat adjusting valve is the sealing of on spool, processing through the fixing PTFE of bolt and pressing plate or other nonmetallic material, and when valve closing, spool and valve seat compress sealing, with the turn-off function of realization runner.When modulating valve was worked, for the flowing medium that certain pressure reduction is arranged, this flowing medium was very serious to the erosion of nonmetallic material sealing; Especially under the situation of higher differential pressure, the working life of nonmetal sealing is very short.In addition, the mounting structure of existing single-seat adjusting valve valve body is comparatively complicated, and dismounting and maintenance be difficulty comparatively.
Summary of the invention:
The purpose of the utility model is to overcome the deficiency of existing technology, and the erosion soft seal single-seat adjusting valve of a kind of design science, long service life, good seal performance is provided.
The utility model solves its technical problem and takes following technological scheme to realize:
A kind of erosion soft seal single-seat adjusting valve; Comprise valve body, valve gap, valve seat, soft seal packing ring, valve rod and spool, valve body is connected with valve gap is coaxial, the coaxial installation spool in the valve rod lower end in valve body; The coaxial valve seat that is fixed with on the valve body between spool bottom and the valve body; Between this valve seat and the valve body sealing is installed, is fixed with the soft seal packing ring in the spool outer rim that contacts with valve seat, spool forms through this soft seal packing ring and valve seat and is sealed and matched; The driving of spool through valve rod realizes the adjusting and the keying of valve, it is characterized in that: the coaxial water conservancy diversion boss ring that is shaped on the spool of spool bottom and the soft seal packing ring lower end surface of valve seat contact position.
And, the coaxial fixing lug boss ring that is shaped on the soft seal packing ring that the made water conservancy diversion boss ring of spool is installed, the bottom of fixing lug boss ring and valve seat Spielpassung, the soft seal packing ring is installed between the inboard and water conservancy diversion boss ring of fixing lug boss ring.
And, on valve interior wall, be coaxially installed with a sleeve, the lower end of this sleeve is fitted on the valve seat, on the sleeve between sleeve and the spool coaxial be fixed with one wear-resisting and have a guide sleeve of self-lubricating function, the coaxial spool that is slidingly installed in the guide sleeve.
The advantage and the good effect of the utility model are:
1, this modulating valve passes through the coaxial fixed valve base of sleeve in valve body; Solved the connection problem of valve seat and valve body; Keep in repair also convenient; Spool can be in sleeve coaxial upper and lower displacement and adjust flow, satisfying of the requirement of different pipelines, thereby realize the adjusting of modulating valve and cut off function rate-of flow; And sleeve can be removed the flash distillation and the cavitation erosion that produce, with the sealing surface between protection spool and the valve seat.
2, this modulating valve radially is equipped with the soft seal fixing lug boss that metallic material is processed in the spool bottom; The employing of soft seal packing ring is pushed up eliminant and is installed in the sealing and fixing boss; When actuator stem force bears specific pressure greater than the maximum of nonmetallic material, can form the metallic seal partition and support spool, the protection spool is in order to avoid be damaged; Overall structure is simple, easy for installation, has avoided labyrinths such as bolt connection; Simultaneously, when the boss pressurized touches valve seat, can also form the sealing of two roads, form better sealing effect.
3, the spool bottom of this modulating valve is shaped on medium water conservancy diversion boss in seal ring one side; Work as valve open; Medium rushes at spool water conservancy diversion boss through the gap throttling between spool and the valve seat, under the effect on boss water conservancy diversion inclined-plane, can avoid medium directly washing away nonmetal sealing surface; This structure especially under the higher differential pressure operating mode effect more obvious, can effectively prolong working life of valve.
Description of drawings:
Fig. 1 is the utility model structural front view;
Fig. 2 is the partial enlarged drawing of I portion among Fig. 1.
Embodiment:
Below in conjunction with accompanying drawing and through specific embodiment the utility model is done further to detail, following examples are descriptive, are not determinate, can not limit the protection domain of the utility model with this.
A kind of erosion soft seal single-seat adjusting valve; Comprise valve body 6, valve gap 1, valve seat 9, soft seal packing ring 8, valve rod 2 and spool 3; Valve body and valve gap adopt through made separately flange that bolt is coaxial to be connected, the coaxial installation spool in the valve rod lower end in valve body, the coaxial valve seat that is fixed with on the valve body between spool bottom and the valve body; Sealing 10 is installed between this valve seat and the valve body; Spool outer rim contacting with valve seat is fixed with the soft seal packing ring, and this spool can form with valve seat through this soft seal packing ring and be sealed and matched, and spool is realized the adjusting of valve and opened and closed function through the driving of valve rod.
The innovative point of the utility model is:
1, on valve interior wall, be coaxially installed with a sleeve 5, the lower end of this sleeve is fitted on the valve seat, on the sleeve between sleeve and the spool coaxial be fixed with one wear-resisting and have a guide sleeve 4 of self-lubricating function, the coaxial spool that is slidingly installed in the guide sleeve.
2, the coaxial water conservancy diversion boss ring 11 that is shaped on the spool of spool bottom and the soft seal packing ring lower end surface of valve seat contact position.The common sealing that realizes valve seat of this water conservancy diversion boss ring and soft seal packing ring; Simultaneously, water conservancy diversion boss environmental protection card soft seal packing ring does not receive the direct erosion of medium, works as valve open that is:, and medium rushes at spool water conservancy diversion boss ring earlier through the gap between spool and the valve seat, avoids medium directly washing away the soft seal packing ring.
3, the coaxial fixing lug boss ring 7 of making on the soft seal packing ring that the made water conservancy diversion boss ring of spool is installed; The bottom of fixing lug boss ring and valve seat Spielpassung, soft seal packing ring are installed between the inboard and water conservancy diversion boss ring of fixing lug boss ring.The effect of fixing lug boss ring is: when the ouput force of actuator is born specific pressure greater than the maximum of soft seal circle, thereby this fixing lug boss contacts with valve seat and supports mangetic core assembly, forms metallic seal and cuts off.
Claims (3)
1. erosion soft seal single-seat adjusting valve; Comprise valve body, valve gap, valve seat, soft seal packing ring, valve rod and spool, valve body is connected with valve gap is coaxial, the coaxial installation spool in the valve rod lower end in valve body; The coaxial valve seat that is fixed with on the valve body between spool bottom and the valve body; Between this valve seat and the valve body sealing is installed, is fixed with the soft seal packing ring in the spool outer rim that contacts with valve seat, spool forms through this soft seal packing ring and valve seat and is sealed and matched; The driving of spool through valve rod realizes the adjusting and the keying of valve, it is characterized in that: the coaxial water conservancy diversion boss ring that is shaped on the spool of spool bottom and the soft seal packing ring lower end surface of valve seat contact position.
2. erosion soft seal single-seat adjusting valve according to claim 1; It is characterized in that: the coaxial fixing lug boss ring that is shaped on the soft seal packing ring that the made water conservancy diversion boss ring of spool is installed; The bottom of fixing lug boss ring and valve seat Spielpassung, soft seal packing ring are installed between the inboard and water conservancy diversion boss ring of fixing lug boss ring.
3. erosion soft seal single-seat adjusting valve according to claim 1; It is characterized in that: on valve interior wall, be coaxially installed with a sleeve; The lower end of this sleeve is fitted on the valve seat; On the sleeve between sleeve and the spool coaxial be fixed with one wear-resisting and have a guide sleeve of self-lubricating function, the coaxial spool that is slidingly installed in the guide sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120377877 CN202280852U (en) | 2011-09-29 | 2011-09-29 | Anti-washout flexible seal single-seat regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120377877 CN202280852U (en) | 2011-09-29 | 2011-09-29 | Anti-washout flexible seal single-seat regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202280852U true CN202280852U (en) | 2012-06-20 |
Family
ID=46227021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120377877 Expired - Lifetime CN202280852U (en) | 2011-09-29 | 2011-09-29 | Anti-washout flexible seal single-seat regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202280852U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359611A (en) * | 2011-09-29 | 2012-02-22 | 天津百利展发集团有限公司 | Washout-preventing soft-sealing single-seat regulating valve |
| CN111895120A (en) * | 2020-09-02 | 2020-11-06 | 氟络塞尔特种阀门(苏州)有限公司 | A high-pressure resistant and leak-proof plug valve for drilling |
-
2011
- 2011-09-29 CN CN 201120377877 patent/CN202280852U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359611A (en) * | 2011-09-29 | 2012-02-22 | 天津百利展发集团有限公司 | Washout-preventing soft-sealing single-seat regulating valve |
| CN111895120A (en) * | 2020-09-02 | 2020-11-06 | 氟络塞尔特种阀门(苏州)有限公司 | A high-pressure resistant and leak-proof plug valve for drilling |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120620 |