CN204828735U - Promotion formula floodgate plug valve sealed firmly - Google Patents
Promotion formula floodgate plug valve sealed firmly Download PDFInfo
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- CN204828735U CN204828735U CN201520581246.2U CN201520581246U CN204828735U CN 204828735 U CN204828735 U CN 204828735U CN 201520581246 U CN201520581246 U CN 201520581246U CN 204828735 U CN204828735 U CN 204828735U
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Abstract
The utility model relates to a promotion formula floodgate plug valve sealed firmly, it includes the valve body, the disk seat, the valve body, the valve rod, the gasket, the valve gap, the double -screw bolt, the round pin packs and presses the cover, eye bolt, the hold down grid, the movable joint nut, the hand wheel, the hand wheel packing ring, the nut packs valve -stem nut. The valve body passes through the double -screw bolt with the valve gap to be connected, and the valve gap passes through eye bolt with the hold down grid to be connected, and the valve rod passes through the flat side of head and is connected with the valve plug. The utility model discloses a full latus rectum part revolving structure, discharge coefficient is big, it is little to open and close the space. Adopt metal seal, prevent static and prevent blowing off the valve rod structure, be applicable to high temperature and high pressure and corrode the operating mode by force, make the wide range. Can change filler structure on line, the convenience is maintained on line. Sealed vice the throwing off during operation has reduced and has opened and close moment and the friction between sealed pair, has improved the life of valve.
Description
Technical field
The utility model relates to a kind of hard sealing lifting type lock plug valve, is specially adapted to High Temperature High Pressure deep-etching operating mode.
Background technique
Lock plug valve is the pivotal gate of a kind of part, combines gate valve, and the advantage of ball valve and stopcock designs.Common gate valve is promoted by valve rod and drives flashboard, realizes the break-make of pipeline.Gate valve flow resistance is little, and more laborsaving during keying, body is simple.But easily cause erosion and scratch between the sealing surface of gate valve, keep in repair more difficult.Boundary dimension is comparatively large, and open and need the regular hour, opening/closing time is long.Common ball-valve structure is simple, and sealing is reliable, easy to maintenance, and opening and closing is rapid, and when standard-sized sheet or full cut-off, the sealing surface of spheroid and valve seat and medium are isolated, medium by time can not cause the erosion of valve sealing face.But machining accuracy is high, involve great expense, should not use in high temperature, in pipe, have impurity easily to be blocked by impurity, cause valve to open.Common stopcock opens and closes rapidly, and light, fluid resistance is little, not by the restriction of installation direction.But its sealing is poor, hoisting capacity is large, easily weares and teares.
Summary of the invention
The purpose of this utility model overcomes the deficiencies in the prior art, provides a kind of hard sealing lifting type lock plug valve.
A kind of hard sealing lifting type lock plug valve, is characterized in that comprising valve body, valve seat, valve plug, valve rod, pad, valve gap, stud, pin, filler pressing sleeve, swing bolt, hold-down grid, movable joint nut, handwheel, handwheel packing ring, nut, filler, Stem Mut; Valve seat is placed in valve body, and the T-shaped screw thread of Stem Mut, by T-shaped chain connection, is connected with valve rod, pad is placed in valve body upper end, upper cover valve gap, and be connected with valve body with stud by valve plug and valve rod.Filler is put into valve gap, and filler pressing sleeve is enclosed within valve rod, upper cover hold-down grid, and is connected with valve gap with pin by swing bolt, movable joint nut.Handwheel is placed in valve rod upper end, handwheel packing ring is placed on it, and is fixedly connected with nut.
Preferably, Stem Mut and valve rod all there is T-shaped screw thread, the valve seat of bearing shell type band scraper function is built in valve pocket, by interior swollen technique, valve seat is embedded valve body in its afterbody, valve seat, Stem Mut and valve rod form two-way mandatory sealing pair jointly, realize valve rod and promote and sealing function on valve rod.
Preferably, valve rod is connected the keying function that can realize valve with valve plug by T-slot.
Preferably, valve plug is cone type, defines bearing shell formula curved surface sealing pair.
Because the utility model have employed full-bore part revolving structure, therefore flow coefficient is large, opens and closes space little, opens and closes rapidly.Meanwhile, the utility model adopts shape metallic leak-proof structure, and the anti-blow valve rod of fireproof antistatic, high-temperature-resistant high-pressure-resistant corrosion protection, applying working condition is extensive.The utility model has changes filling-material structure online, facilitates on-line maintenance.During operation, sealing pair is thrown off, and decreases the friction opened and closed between moment and sealing pair, improves the working life of valve.
Accompanying drawing explanation
Fig. 1 is that the utility model seals lifting type lock plug valve structural representation firmly
In figure, valve body 1, valve seat 2, valve plug 3, valve rod 4, pad 5, valve gap 6, stud 7, pin 8, filler pressing sleeve 9, swing bolt 10, hold-down grid 11, movable joint nut 12, handwheel 13, handwheel packing ring 14, nut 15, filler 16, Stem Mut 17.
Embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is described further.
As shown in Figure 1, a kind of hard sealing lifting type lock plug valve comprises valve body (1), valve seat (2), valve plug (3), valve rod (4), pad (5), valve gap (6), stud (7), pin (8), filler pressing sleeve (9), swing bolt (10), hold-down grid (11), movable joint nut (12), handwheel (13), handwheel packing ring (14), nut (15), filler (16), Stem Mut (17); Valve seat 2 is placed in valve body 1, and the T-shaped screw thread of Stem Mut 17, by T-shaped chain connection, is connected with valve rod 4, pad 5 is placed in valve body 1 upper end, upper cover valve gap 6, and is connected with valve body 1 with stud 7 by valve plug 3 and valve rod 4.Filler 16 is put into valve gap 6, and filler pressing sleeve 9 is enclosed within valve rod 4, upper cover hold-down grid 11, and is connected with valve gap 6 with pin 8 by swing bolt 10 movable joint nut 12.Handwheel 13 is placed in valve rod 4 upper end, handwheel packing ring 14 is placed on it, and is fixedly connected with nut 15.
According to an embodiment of the present utility model, described Stem Mut 17 and valve rod 4 all there is T-shaped screw thread, the valve seat 2 of bearing shell type band scraper function is built in valve pocket, by interior swollen technique, valve seat is embedded valve body in its afterbody, valve seat 2 forms two-way mandatory sealing pair with valve plug 3, Stem Mut 17 jointly with valve rod 4, realizes valve rod 4 and promotes and sealing function on valve rod 4.
According to an embodiment of the present utility model, described valve rod 4 is connected the keying function that can realize valve with valve plug 3 by T-slot.
According to an embodiment of the present utility model, described valve plug 3 is cone type, defines bearing shell formula curved surface sealing pair.
The controlling method of described hard sealing lifting type lock plug valve comprises the following steps:
1) when valve is in closed condition, turn clockwise 90 degree, handwheel, and valve rod 4 drives liter on valve plug 3 limit that curved surface sealing pair is thrown off by the flat side of head, and limit rotates to fully open position;
2) simultaneously, Stem Mut 17 is risen by T-shaped screw pair band ovable valve stem 4, and coincideing to be formed with Stem Mut 17 seals;
3) when valve is in full-gear, be rotated counterclockwise 90 degree, handwheel, valve rod 4 drives the decline of valve plug 3 limit that curved surface sealing pair is coincide by the flat side of head, and limit rotates to closed positions;
4) simultaneously, Stem Mut 17 is declined by T-shaped screw pair band ovable valve stem 4, makes valve plug 3 and valve seat 2 form two-way forced sealing.
Claims (4)
1. one kind seals lifting type lock plug valve firmly, it is characterized in that comprising valve body (1), valve seat (2), valve plug (3), valve rod (4), pad (5), valve gap (6), stud (7), pin (8), filler pressing sleeve (9), swing bolt (10), hold-down grid (11), movable joint nut (12), handwheel (13), handwheel packing ring (14), nut (15), filler (16), Stem Mut (17); Valve seat (2) is placed in valve body (1), the T-shaped screw thread of Stem Mut (17), by T-shaped chain connection, is connected with valve rod (4), pad (5) is placed in valve body (1) upper end by valve plug (3) and valve rod (4), upper cover valve gap (6), and be connected with valve body (1) with stud (7);
Filler (16) is put into valve gap (6), and filler pressing sleeve (9) is enclosed within valve rod (4), upper cover hold-down grid (11), and is connected with valve gap (6) with pin (8) by swing bolt (10) movable joint nut (12);
Handwheel (13) is placed in valve rod (4) upper end, and handwheel packing ring (14) is placed on it, and is fixedly connected with nut (15).
2. one according to claim 1 seals lifting type lock plug valve firmly, it is characterized in that Stem Mut (17) and valve rod (4) all have T-shaped screw thread, the valve seat (2) of bearing shell type band scraper function is built in valve pocket, by interior swollen technique, valve seat is embedded valve body in its afterbody, valve seat (2) forms two-way mandatory sealing pair with valve plug (3), Stem Mut (17) jointly with valve rod (4), realizes valve rod (4) and promotes and the upper sealing function of valve rod (4).
3. one according to claim 1 seals lifting type lock plug valve firmly, it is characterized in that valve rod (4) is connected the keying function that can realize valve with valve plug (3) by T-slot.
4. one according to claim 1 seals lifting type lock plug valve firmly, it is characterized in that valve plug (3) is cone type, defines bearing shell formula curved surface sealing pair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520581246.2U CN204828735U (en) | 2015-08-05 | 2015-08-05 | Promotion formula floodgate plug valve sealed firmly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520581246.2U CN204828735U (en) | 2015-08-05 | 2015-08-05 | Promotion formula floodgate plug valve sealed firmly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204828735U true CN204828735U (en) | 2015-12-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520581246.2U Active CN204828735U (en) | 2015-08-05 | 2015-08-05 | Promotion formula floodgate plug valve sealed firmly |
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| Country | Link |
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| CN (1) | CN204828735U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065701A (en) * | 2015-08-05 | 2015-11-18 | 浙江福瑞科流控机械有限公司 | Hard sealing lifting type brake plug valve and control method thereof |
| CN106870812A (en) * | 2017-04-26 | 2017-06-20 | 张新丰 | A kind of band rotary drag stop valve application method |
-
2015
- 2015-08-05 CN CN201520581246.2U patent/CN204828735U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065701A (en) * | 2015-08-05 | 2015-11-18 | 浙江福瑞科流控机械有限公司 | Hard sealing lifting type brake plug valve and control method thereof |
| CN106870812A (en) * | 2017-04-26 | 2017-06-20 | 张新丰 | A kind of band rotary drag stop valve application method |
| CN106870812B (en) * | 2017-04-26 | 2019-01-18 | 盐城市高中压阀门有限公司 | A kind of band rotary drag shut-off valve application method |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |