CN201902574U - Triple eccentric replaceable metal hard-sealing valve seat - Google Patents
Triple eccentric replaceable metal hard-sealing valve seat Download PDFInfo
- Publication number
- CN201902574U CN201902574U CN2011200006029U CN201120000602U CN201902574U CN 201902574 U CN201902574 U CN 201902574U CN 2011200006029 U CN2011200006029 U CN 2011200006029U CN 201120000602 U CN201120000602 U CN 201120000602U CN 201902574 U CN201902574 U CN 201902574U
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- valve
- seat
- valve seat
- axle
- valve body
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Abstract
The utility model relates to a triple eccentric replaceable metal hard-sealing valve seat. The valve seat comprises a valve body, wherein a rotatable shaft is arranged in a longitudinal hole of the valve body, a transverse valve port is formed on the valve body, a valve plate is arranged in the valve port, and the valve plate is mounted on the shaft through a fixing pin and a key. The valve seat is characterized in that an assistant valve seat is fixed on the edge of the valve plate, a main valve seat is fixed at the valve port through a clamping ring, and the main valve seat and the assistant valve seat are matched with each other to form a sealing surface; the assistant valve seat is fixed through an assistant valve seat fixing pin; the main valve seat is fixed through a main valve seat fixing pin; the upper end of the valve body is connected with an actuating mechanism through a connecting sleeve, and the actuating mechanism is fixed with the valve body through a bracket; a shaft sleeve is arranged between the shaft and the valve body at a position near the valve port; and a bottom flange and a semicircular ring used for positioning the shaft sleeve are arranged at the lower end of the valve body. The valve seat has the advantages of good sealing effect, no friction on the sealing surface, long service life and reliable performance, and greatly reduces the torque of a valve.
Description
Technical field
The utility model relates to a kind of valve seat, especially a kind of three eccentric Changable type metal hard-sealing valve seats.
Background technique
Three eccentric butterfly valve is mainly used in the gas of high, medium and low temperature and high, medium and low voltage, the adjusting and the cut-out of liquid medium delivery line.Common in the prior art three eccentric metal hard sealed valve main valve seat is an integral type with valve body, can't change, and as shown in Figure 1, auxiliary-seat also is singly to join adding man-hour, can't change, and it is very high to keep in repair not only difficulty but also cost like this.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and three eccentric Changable type metal hard-sealing valve seats of a kind of long service life, reliable performance are provided.
According to the technological scheme that the utility model provides, described three eccentric Changable type metal hard-sealing valve seats comprise valve body, rotary axle is arranged in vertical hole of valve body, horizontal valve port is arranged on valve body, valve plate is arranged in the valve port, described valve plate is installed on the axle by fixing pin and key; Feature is: by valve plate trim ring fixed joint valve seat, by the fixing main valve seat of trim ring, described main valve seat and auxiliary-seat cooperate the formation sealing surface on valve port at the edge of described valve plate.
Described auxiliary-seat is fixed by the auxiliary-seat fixing pin; Described main valve seat is fixed by the main valve seat fixing pin.
The upper end of described valve body is connected with actuator by connecting sleeve, is fixed by support between described actuator and the valve body.
Between described axle and valve body, be provided with axle sleeve, be provided with end flange in the lower end of valve body and be used to locate the semicircular ring of axle sleeve near the position of valve port.
Between the axle center of potted line that forms when the sealing surface of described main valve seat and auxiliary-seat seals and axle throw of eccentric a is arranged; Between the center of the cross central line of described valve plate and axle, spacing b is arranged; Between the central horizontal line of the sealing surface of described main valve seat and auxiliary-seat and axle, angle α is arranged.
Be useful on the hold-down grid and the filler seat of location filler in the upper end of described valve body, at follower upper fixed hold-down grid.
On described axle, be provided with key.
The utility model adopts high temperature, corrosion-resistant, wear-resistant metal material to process on special fixtures, good sealing effect, and no any friction reduces valve torque greatly on the sealing surface, reduces valve integral body cost, long service life, reliable performance.
Description of drawings
Fig. 1 is the structural representation of the three eccentric metal hard sealed valve of prior art.
Fig. 2 is a structural representation of the present utility model.
Fig. 3 is the A-A view of Fig. 2.
Fig. 4 is the I enlarged view of Fig. 2.
Embodiment
The utility model is described in further detail below in conjunction with concrete accompanying drawing.
As Fig. 2 ~ shown in Figure 4: three eccentric Changable type metal hard-sealing valve seats comprise actuator 1, support 2, connecting sleeve 3, hold-down grid 4, follower 5, filler seat 6, filler 7, sealing surface 8, trim ring 9, valve plate trim ring 10, valve body 11, valve plate 12, main valve seat 13, auxiliary-seat 14, axle 15, axle sleeve 16, end flange 17, semicircular ring 18, main valve seat fixing pin 19, auxiliary-seat fixing pin 20, key 21 etc.
The utility model comprises valve body 11, and rotary axle 15 is arranged in vertical hole of valve body 11, and horizontal valve port is arranged on valve body 11, and valve plate 12 is arranged in the valve port, and described valve plate 12 is installed on the axle 15 by fixing pin and key 21; At the edge of described valve plate 12 valve plate trim ring 10 fixed joint valve seats 14, on valve port, pass through fixedly main valve seat 13 of trim ring 9, described main valve seat 13 and auxiliary-seat 14 cooperate formation sealing surfaces 8;
Described auxiliary-seat 14 is fixing by auxiliary-seat fixing pin 20; Described main valve seat 13 is fixing by main valve seat fixing pin 19;
The upper end of described valve body 11 is connected with actuator 1 by connecting sleeve 3, and is fixing by support 2 between described actuator 1 and the valve body 11;
Between axle 15 and valve body 11, be provided with axle sleeve 16, be provided with end flange 17 in the lower end of valve body 11 and be used to locate the semicircular ring 18 of axle sleeve 16 near the position of valve port;
Between the potted line that the sealing surface 8 of described main valve seat 13 and auxiliary-seat 14 forms when sealing and the axle center of axle 15 throw of eccentric a is arranged, throw of eccentric a can make valve plate 12 press to main valve seat 13 gradually, reaches sealing effect; Between the center of the cross central line of valve plate 12 and axle 15 spacing b is arranged, spacing b breaks away from main valve seat 13 when valve plate 12 is opened faster, and makes valve plate 12 when complete opening reaches, and can break away from main valve seat 13 fully, makes valve body 11 that bigger negotiability be arranged; Between the central horizontal line of the sealing surface 8 of main valve seat 13 and auxiliary-seat 14 and axle 15 angle α is arranged, angle α can make the sealing surface 8 of main valve seat 13 and auxiliary-seat 14 close when contact, and the maintenance upper-lower seal compresses the sealed increscence amount equalization synchronously;
Be useful on the follower 5 and the filler seat 6 of location filler 7 in the upper end of valve body 11, at follower 5 upper fixed hold-down grids 4.
The valve seat that uses on the three eccentric metal hard sealed valve described in the utility model is divided into major and minor valve seat, and major and minor valve seat can exchange; The leakage grade of desuperheater described in the utility model is CLASS V or CLASS VI, can be used in the temperature range-196 ℃ ~ 538 ℃.
Claims (7)
1. eccentric Changable type metal hard-sealing valve seat, comprise valve body (11), rotary axle (15) is arranged in vertical hole of valve body (11), on valve body (11), horizontal valve port is arranged, valve plate (12) is arranged in the valve port, and described valve plate (12) is installed on the axle (15) by fixing pin and key (21); It is characterized in that: the edge at described valve plate (12) passes through valve plate trim ring (10) fixed joint valve seat (14), passes through fixedly main valve seat (13) of trim ring (9) on valve port, and described main valve seat (13) and auxiliary-seat (14) cooperate formation sealing surface (22).
2. as claimed in claim 1 three eccentric Changable type metal hard-sealing valve seats is characterized in that: described auxiliary-seat (14) is fixing by auxiliary-seat fixing pin (20); Described main valve seat (13) is fixing by main valve seat fixing pin (19).
3. as claimed in claim 1 three eccentric Changable type metal hard-sealing valve seats, it is characterized in that: the upper end of described valve body (11) is connected with actuator (1) by connecting sleeve (3), and is fixing by support (2) between described actuator (1) and the valve body (11).
4. as claimed in claim 1 three eccentric Changable type metal hard-sealing valve seats, it is characterized in that: between described axle (15) and valve body (11), the position of close valve port is provided with axle sleeve (16), be provided with end flange (17) in the lower end of valve body (11) and be used to locate the semicircular ring (18) of axle sleeve (16).
5. as claimed in claim 1 three eccentric Changable type metal hard-sealing valve seats is characterized in that: between the axle center of potted line that forms when the sealing surface (22) of described main valve seat (13) and auxiliary-seat (14) seals and axle (15) throw of eccentric a is arranged; Between the center of the cross central line of described valve plate (12) and axle (15), spacing b is arranged; Between the central horizontal line of the sealing surface (22) of described main valve seat (13) and auxiliary-seat (14) and axle (15), angle α is arranged.
6. as claimed in claim 1 three eccentric Changable type metal hard-sealing valve seats, it is characterized in that: be useful on the hold-down grid (4) and the filler seat (6) of location filler (7) in the upper end of described valve body (11), at follower (5) upper fixed hold-down grid (4).
7. as claimed in claim 1 three eccentric Changable type metal hard-sealing valve seats is characterized in that: be provided with key (21) on described axle (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200006029U CN201902574U (en) | 2011-01-04 | 2011-01-04 | Triple eccentric replaceable metal hard-sealing valve seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200006029U CN201902574U (en) | 2011-01-04 | 2011-01-04 | Triple eccentric replaceable metal hard-sealing valve seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201902574U true CN201902574U (en) | 2011-07-20 |
Family
ID=44273167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200006029U Expired - Lifetime CN201902574U (en) | 2011-01-04 | 2011-01-04 | Triple eccentric replaceable metal hard-sealing valve seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201902574U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109084035A (en) * | 2018-09-05 | 2018-12-25 | 温州上沃阀门科技有限公司 | Applied to the valve plate of butterfly valve and the installing mechanism of valve rod |
-
2011
- 2011-01-04 CN CN2011200006029U patent/CN201902574U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109084035A (en) * | 2018-09-05 | 2018-12-25 | 温州上沃阀门科技有限公司 | Applied to the valve plate of butterfly valve and the installing mechanism of valve rod |
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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: 20110720 |