CN105065701A - Hard sealing lifting type brake plug valve and control method thereof - Google Patents
Hard sealing lifting type brake plug valve and control method thereof Download PDFInfo
- Publication number
- CN105065701A CN105065701A CN201510472919.5A CN201510472919A CN105065701A CN 105065701 A CN105065701 A CN 105065701A CN 201510472919 A CN201510472919 A CN 201510472919A CN 105065701 A CN105065701 A CN 105065701A
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- Prior art keywords
- valve
- plug
- valve rod
- lifting type
- rod
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- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/22—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/60—Handles
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The invention relates to a hard sealing lifting type brake plug valve and a control method thereof. The hard sealing lifting type brake plug valve comprises a valve body, a valve seat, a valve plug, a valve rod, a gasket, a valve deck, studs, pins, a packing bushing, swing bolts, a packing pressing plate, swing bolts, a hand wheel, a hand wheel gasket, a nut, packing and a valve rod nut. The valve body and the valve deck are connected through the studs. The valve deck and the packing pressing plate are connected through the swing bolts. The valve rod is connected with the valve plug through a head flat-square part. A full-bore partial-rotation structure is adopted, the flow coefficient is large, and the opening and closing space is small. The metal-sealing, fireproof, anti-static and blowout prevention valve rod structure is adopted, and the hard sealing lifting type brake plug valve is suitable for high-temperature-resistant, high-pressure-resistant and strong-corrosion-resistant working conditions and is wide in application range. The packing structure can be replaced on line, and online maintenance is convenient. During operation, a sealing pair is disengaged, friction between opening and closing torque and the sealing pair is reduced, and the service life of the valve is prolonged.
Description
Technical field
The present invention relates to a kind of hard sealing lifting type lock plug valve and controlling method thereof, be 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 object of the invention is to overcome the deficiencies in the prior art, a kind of hard sealing lifting type lock plug valve and controlling method thereof are provided.
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 passes through or save bolt, movable joint nut and pin to be connected with valve gap.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.
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 drives liter on valve plug 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 is risen by T-shaped screw pair band ovable valve stem, and coincideing to be formed with Stem Mut seals;
3) when valve is in full-gear, be rotated counterclockwise 90 degree, handwheel, valve rod drives the decline of valve plug limit that curved surface sealing pair is coincide by the flat side of head, and limit rotates to closed positions;
4) simultaneously, Stem Mut is declined by T-shaped screw pair band ovable valve stem, makes valve plug and valve seat form two-way forced sealing.
Owing to present invention employs full-bore part revolving structure, therefore flow coefficient is large, opens and closes space little, opens and closes rapidly.Meanwhile, the present invention 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 present invention has and 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 present invention 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, technological scheme of the present invention 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 passes through or save bolt 10 movable joint nut 12 to be connected with valve gap 6 with pin 8.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 one embodiment of present invention, 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 one embodiment of present invention, described valve rod 4 is connected the keying function that can realize valve with valve plug 3 by T-slot.
According to one embodiment of present invention, 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 (5)
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 passes through or save bolt (10) movable joint nut (12) to be connected with valve gap (6) with pin (8);
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.
5. a controlling method for hard sealing lifting type lock plug valve as claimed in claim 1, is characterized in that comprising the following steps:
1) when valve is in closed condition, turn clockwise (15) 90 degree, handwheel, and valve rod (4) drives valve plug (3) Bian Shangsheng 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 valve gap (6) seals;
3) when valve is in full-gear, be rotated counterclockwise (15) 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510472919.5A CN105065701B (en) | 2015-08-05 | 2015-08-05 | Hard sealing hoisting type lock plug valve and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510472919.5A CN105065701B (en) | 2015-08-05 | 2015-08-05 | Hard sealing hoisting type lock plug valve and its control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105065701A true CN105065701A (en) | 2015-11-18 |
| CN105065701B CN105065701B (en) | 2017-12-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510472919.5A Active CN105065701B (en) | 2015-08-05 | 2015-08-05 | Hard sealing hoisting type lock plug valve and its control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105065701B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106812961A (en) * | 2017-04-07 | 2017-06-09 | 李祥庆 | A kind of band scraper stop valve application method |
| CN106884991A (en) * | 2017-04-07 | 2017-06-23 | 李祥庆 | A kind of band scraper stop valve |
| CN113389910A (en) * | 2021-06-17 | 2021-09-14 | 浙江福瑞科流控机械有限公司 | Low-operating-torque plug valve with replaceable valve sleeve seal and working method thereof |
Citations (10)
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|---|---|---|---|---|
| CN2883819Y (en) * | 2005-12-01 | 2007-03-28 | 浙江成达特种阀门厂 | Scraper type two-way high temp metal hard sealing ball valve |
| CN101131214A (en) * | 2007-09-29 | 2008-02-27 | 温州市威驰阀门有限公司 | Automatic decoking stopcock |
| CN101532569A (en) * | 2009-04-15 | 2009-09-16 | 浙江超达阀门股份有限公司 | Plug valve which is opened or closed after being lifted |
| CN101737514A (en) * | 2008-11-07 | 2010-06-16 | 浙江西麦克阀门制造有限公司 | Wedge type abrasion resistant plug valve |
| CN202451883U (en) * | 2012-01-16 | 2012-09-26 | 浙江福瑞科流控机械有限公司 | Automatic decoking plug valve |
| CN102829195A (en) * | 2012-09-05 | 2012-12-19 | 张丽智 | Universal compact type forged steel self-sealing stop valve |
| CN202674359U (en) * | 2012-06-08 | 2013-01-16 | 浙江维都利阀门制造有限公司 | Lifting stopcock |
| CN204201105U (en) * | 2014-09-18 | 2015-03-11 | 辉煌水暖集团有限公司 | A kind of multi-sealed stop valve |
| CN204420164U (en) * | 2015-01-04 | 2015-06-24 | 苏州道森阀门有限公司 | The wear-resisting high pressure cock valve of the low moment of torsion of rotation and lifting bar |
| CN204828735U (en) * | 2015-08-05 | 2015-12-02 | 浙江福瑞科流控机械有限公司 | Promotion formula floodgate plug valve sealed firmly |
-
2015
- 2015-08-05 CN CN201510472919.5A patent/CN105065701B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2883819Y (en) * | 2005-12-01 | 2007-03-28 | 浙江成达特种阀门厂 | Scraper type two-way high temp metal hard sealing ball valve |
| CN101131214A (en) * | 2007-09-29 | 2008-02-27 | 温州市威驰阀门有限公司 | Automatic decoking stopcock |
| CN101737514A (en) * | 2008-11-07 | 2010-06-16 | 浙江西麦克阀门制造有限公司 | Wedge type abrasion resistant plug valve |
| CN101532569A (en) * | 2009-04-15 | 2009-09-16 | 浙江超达阀门股份有限公司 | Plug valve which is opened or closed after being lifted |
| CN202451883U (en) * | 2012-01-16 | 2012-09-26 | 浙江福瑞科流控机械有限公司 | Automatic decoking plug valve |
| CN202674359U (en) * | 2012-06-08 | 2013-01-16 | 浙江维都利阀门制造有限公司 | Lifting stopcock |
| CN102829195A (en) * | 2012-09-05 | 2012-12-19 | 张丽智 | Universal compact type forged steel self-sealing stop valve |
| CN204201105U (en) * | 2014-09-18 | 2015-03-11 | 辉煌水暖集团有限公司 | A kind of multi-sealed stop valve |
| CN204420164U (en) * | 2015-01-04 | 2015-06-24 | 苏州道森阀门有限公司 | The wear-resisting high pressure cock valve of the low moment of torsion of rotation and lifting bar |
| CN204828735U (en) * | 2015-08-05 | 2015-12-02 | 浙江福瑞科流控机械有限公司 | Promotion formula floodgate plug valve sealed firmly |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106812961A (en) * | 2017-04-07 | 2017-06-09 | 李祥庆 | A kind of band scraper stop valve application method |
| CN106884991A (en) * | 2017-04-07 | 2017-06-23 | 李祥庆 | A kind of band scraper stop valve |
| CN106812961B (en) * | 2017-04-07 | 2019-04-09 | 李祥庆 | A kind of application method with scraper shut-off valve |
| CN113389910A (en) * | 2021-06-17 | 2021-09-14 | 浙江福瑞科流控机械有限公司 | Low-operating-torque plug valve with replaceable valve sleeve seal and working method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105065701B (en) | 2017-12-01 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Hard sealing lifting type brake plug valve and control method thereof Effective date of registration: 20191031 Granted publication date: 20171201 Pledgee: Zhejiang Quzhou Qujiang Rural Commercial Bank Co., Ltd Pledgor: Zhejiang Furuike Flow Control Machinery Co., Ltd. Registration number: Y2019330000160 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |