CN204985799U - Lifting type plug -valve - Google Patents
Lifting type plug -valve Download PDFInfo
- Publication number
- CN204985799U CN204985799U CN201520514319.6U CN201520514319U CN204985799U CN 204985799 U CN204985799 U CN 204985799U CN 201520514319 U CN201520514319 U CN 201520514319U CN 204985799 U CN204985799 U CN 204985799U
- Authority
- CN
- China
- Prior art keywords
- valve
- cover
- seat
- spring
- underdrive
- 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.)
- Active
Links
Landscapes
- Mechanically-Actuated Valves (AREA)
Abstract
The utility model discloses a lifting type plug -valve. It includes valve body, cock body, lower cover, valve rod, valve gap, gland, underdrive cover, stopper, transfer line, hand wheel, round nut, bearing cap, bearing, support shell body, uide bushing, direction roller, goes up transmission cover, preceding seating ring, back seating ring, spring holder, disc spring, valve seat insert etc. The utility model is suitable for an on high temperature resistant, high -pressure, the wear -resisting and resistant pipeline that special purpose such as erodees, especially have on the medium pipe of granule nature. The utility model discloses the promotion that realizes the cock body can realize the coherent function of " promoting - - - rotation - - - lower floodgate " in once continuous rotation with the rotation, the conversion of motion is realized to the swivel nut screw in the structure when linear motion converts rotary motion to. And simultaneously, the utility model provides a disk seat adopts a split type scalable valve holder structure, can realize preventing the function of medium entering valve pocket when sealed vice throwing off.
Description
Technical field
The utility model relates to a kind of lifting type plug valve structure, and particularly, medium harsh for operating mode is complicated as High Temperature High Pressure or the medium containing powder particle.
Background technique
Stopcock is the rotary valve that closure member becomes plunger shape, by 90-degree rotation, makes the passway on valve plug communicate with the passway on valve body or cut off, and realizes a kind of valve opened or close.The flow resistance of such valve is more much smaller than stop valve, butterfly valve, plunger valve, and only bigger than whole-through diameter ball valve, the shape of valve plug can be made into cylindrical.Stopcock is best suited for as cut-out and opens and shunting use.Lifting type plug valve is applicable on the pipeline of the specific uses such as high temperature resistant, high pressure, wear-resisting and resistance to erosion, particularly with on the medium pipeline of graininess, as traditional industries or coal-formed gas, coal liquifaction, shale gas and shale wet goods unconventional energy resource industries such as electric power, metallurgy, petrochemical industry, papermaking and mining.
The lifting type plug valve had in the market adopts the design promoting and be separated with switching manipulation, needing first to rotate lifting device during valve opening and closing makes valve rise, and then rotating switch realizes the opening and closing of valve, finally also need again to rotate lifting device and make valve reset, single opening and closing needs to carry out the action that six changes turn to, use is not facilitate especially, there is the space promoted further, in addition, lifting type plug valve in the market can make valve seat and cock body throw off completely when promoting, some specific industry can not be met as the demand of coal chemical industry, and adopt the stopcock of integral structure, clean and maintenance is in use cumbersome, often cause the problems such as trimming that stop production.
Summary of the invention
The purpose of this utility model overcomes the deficiencies in the prior art, provides a kind of lifting type plug valve.
Lifting type plug valve comprises valve body, cock body, lower cover, valve rod, valve gap, Gland, underdrive cover, limiting stopper, drive link, handwheel, round nut, bearing cap, bearing, rack shell body, guide sleeve, guide roller, upper driving cover, front seat ring, rear seat ring, spring seat, butterfly spring, the valve seat insert of stopcock; Cock body is enclosed within down and covers, and lower cover and valve body are bolted, and cock body is connected by straight pin with valve rod, and valve rod is through valve gap, and middle installation filler and Packing seat, valve gap and valve body are bolted.Valve gap is connected with nut by disc spring with Gland, valve rod is connected by straight pin with underdrive cover, underdrive cover is connected with limiting stopper by straight pin, underdrive cover is threaded connection with upper driving cover, underdrive cover overlaps with upper driving and is all enclosed within guide sleeve, between upper driving cover and guide sleeve, guide roller is installed, be connected by straight pin between guide sleeve with rack shell body, upper driving cover is threaded connection with drive link, drive link is installed bearing to be located by guide sleeve and bearing cap and step up, drive link is connected by handwheel and locks with round nut.Front seat ring, recoil ring, spring seat, butterfly spring, valve seat insert form Split type telescopic valve seat on valve body.
Described front seat ring and recoil ring set are connected on valve body, and valve seat insert is installed at socket place two ends, and mounting spring seat between front seat ring and rear seat ring, spring seat installs butterfly spring.Described cock body is fixed on valve central shaft by valve rod and lower cover, and lower cover is connected with valve body bolt.In described upper driving cover adopts, swivel nut worm structure overlaps with drive link and underdrive respectively and is connected.
Use the utility model, lifting and the rotation of cock body can realize the coherent running of " promoting---rotation---lower lock " in the rotation of one-time continuous, and simple to operate, efficiency is high; When straight line motion converts rotary motion to, structure internal screw thread die cutting realizes motion conversion.And by the decontamination function of dismounting lower cover realization to valve inner, can realize the quick cleaning in industrial production.And the utility model adopts telescopic valve seat construction, wherein, seat ring can according to the alloy material of all kinds of special wear-resisting, corrosion-resistant, high temperature high voltage resistant of medium requirements built-up welding.Valve base sealing loop material is graphite, can be used for high temperature corrosion-resisting operating mode, belleville spring and spring seat can give front valve seat force, namely when cock body is up carried, spring pushes away front valve seat and is close to plug, prevent valve seat and cock body from throwing off, medium and spring are kept apart by rear valve base, avoid the particle deposition in medium to make spring failure.This structure can prevent medium from entering valve pocket when sealing pair is thrown off, and meanwhile, valve seat and cock body Relative friction produce " scraper " and act on, and the dirt sticked on cock body is scraped off.The working life of poppet.
Lifting type plug valve valve seat of the present utility model and cock body sealing surface are under the thrust of seating spring, remain the contact that coincide, in the opening-closing process of valve, before bearing shell shape the Relative friction of seat ring and cock body move create to cock body surface scrape dirt act on, clear up the dirt being deposited on cock body surface in time, simultaneously, its chamber formed and valve body lumen are isolated, dirt alluvial is formed and the valve operation that causes lost efficacy after preventing medium from carrying out valve body lumen, the particle entering into valve lumen at valve opening instantaneously also can by outside the rinse-system exits valve body of valve.Because the forced seal power of valve in operation between sealing pair disappears, only have preset spring-force driven dual on sealing pair, and the operation system of deft design uniqueness achieves operation overall process, therefore its operational torque is very little, and valve operation is very light.
Accompanying drawing explanation
Fig. 1 is the structural representation of lifting type plug valve;
Fig. 2 is internal structure schematic diagram of the present utility model;
Fig. 3 is support drive part structural representation of the present utility model;
Fig. 4 is valve seat construction schematic diagram of the present utility model;
In figure, valve body 1, cock body 2, lower cover 3, valve rod 4, valve gap 5, Gland 6, underdrive cover 7, limiting stopper 8, drive link 9, handwheel 10, round nut 11, bearing cap 12, bearing 13, rack shell body 14, guide sleeve 15, guide roller 16, upper driving cover 17, front seat ring 18, rear seat ring 19, spring seat 20, butterfly spring 21, valve seat insert 22.
Embodiment
As Figure 1-4, lifting type plug valve comprises valve body 1, cock body 2, lower cover 3, valve rod 4, valve gap 5, Gland 6, underdrive cover 7, limiting stopper 8, drive link 9, handwheel 10, round nut 11, bearing cap 12, bearing 13, rack shell body 14, guide sleeve 15, guide roller 16, upper driving cover 17, front seat ring 18, rear seat ring 19, spring seat 20 butterfly spring 21, the valve seat insert 22 of stopcock; Cock body 2 is enclosed within lower cover 3, and lower cover 3 and valve body 1 are bolted, and cock body 2 is connected by straight pin with valve rod 4, and valve rod 4 is through valve gap 5, and valve gap 5 and valve body 1 are bolted.Valve gap 5 is connected with nut by disc spring with Gland 6, valve rod 4 and underdrive are overlapped 7 and are connected by straight pin, underdrive cover 7 is connected with limiting stopper 8 by straight pin, underdrive cover 7 overlaps 17 with upper driving and is threaded connection, underdrive cover 7 overlaps 17 with upper driving and is all enclosed within guide sleeve 15, between upper driving cover 17 and guide sleeve 15, guide roller 16 is installed, be connected by straight pin between guide sleeve 15 with rack shell body 14, upper driving cover 17 is threaded connection with drive link 9, drive link 9 is installed bearing 13 to be located by guide sleeve 15 and bearing cap 12 and step up, drive link 9 connects through handwheel 10 and uses round nut 11 to lock.Front seat ring 18, recoil ring 19, spring seat 20, butterfly spring 21, valve seat insert 22 form Split type telescopic valve seat on valve body 1.
As shown in Figure 3, upper driving cover 17 adopt in swivel nut worm structure overlap 7 with drive link 9 and underdrive respectively and be connected.
As shown in Figure 4, cock body 2 is fixed on valve central shaft by valve rod 4 and lower cover 3.Lower cover 3 is connected with bolt with valve body 1, can realize the function of on-line rinsing blowdown or on-line maintenance.
Between front seat ring 6 and recoil ring 7, spring seat 8 is installed, spring seat 8 is installed butterfly spring 9.Belleville spring and spring seat can give front valve seat force, and namely when cock body is up carried, spring pushes away front valve seat and is close to plug, and prevent valve seat and cock body from throwing off, medium and spring are kept apart by rear valve base, avoid the particle deposition in medium to make spring failure.This structure can prevent medium from entering valve pocket when sealing and paying and throw off, and meanwhile, valve seat and cock body Relative friction produce " scraper " and act on, and the dirt sticked on cock body is scraped off.
The controlling method of lifting type plug valve comprises the following steps:
1) when valve rod is installed, first underdrive cover 17 is overlapped 7 with upper driving and be connected, reserve the distance of 8mm, connect upper driving cover 17 and drive link 9 afterwards; Then will upload lever 17 and install rear loading valve gap 5 by guide roller 16 and guide sleeve 15, and fill limiting stopper 8 afterwards, reinstall bearing 13 and bearing cap 12, fixing behind the adjustment switching position;
2) valve is when closed positions is opened, and clockwise drives handwheel 10, and cock body 2 is thus lifted to limiting stopper 8 and is pushed away front seat ring 18 by the position butterfly spring 21 stopped and be close to cock body 2, prevents valve body 1 and cock body 2 from throwing off;
3) continue clockwise to drive handwheel 10, cock body 2 stops ascending motion, start around valve rod 4 rotate until cock body runner and valve flowing channel in the same direction;
4) continue to drive handwheel 10 clockwise, cock body 2 stops the rotation, and start along valve rod axial downward movement until cock body sealing surface and sealing surface of seat are closely affixed, cock body runner hole connects with valve flowing channel hole is intact, and valve completes by pass to the entire exercise of opening;
5), when driving handwheel 10 counterclockwise, cock body is returned to the position of complete shut-down by the action reaching pass by completing lifting-rotation-decline-sealing four consistently.
Claims (4)
1. a lifting type plug valve, is characterized in that the valve body (1), cock body (2), lower cover (3), valve rod (4), valve gap (5), Gland (6), underdrive cover (7), limiting stopper (8), drive link (9), handwheel (10), round nut (11), bearing cap (12), bearing (13), rack shell body (14), guide sleeve (15), guide roller (16), upper driving cover (17), front seat ring (18), rear seat ring (19), spring seat (20), butterfly spring (21), the valve seat insert (22) that comprise stopcock, cock body (2) is enclosed within lower cover (3), lower cover (3) and valve body (1) are bolted, cock body (2) is connected by straight pin with valve rod (4), valve rod (4) is through valve gap (5), valve gap (5) and valve body (1) are bolted, valve gap (5) is connected with nut by disc spring with Gland (6), valve rod (4) is connected by straight pin with underdrive cover (7), underdrive cover (7) is connected with limiting stopper (8) by straight pin, underdrive cover (7) and upper driving cover (17) are threaded connection, underdrive cover (7) and upper driving cover (17) are all enclosed within guide sleeve (15), guide roller (16) is installed between upper driving cover (17) and guide sleeve (15), be connected by straight pin between guide sleeve (15) with rack shell body (14), upper driving cover (17) and drive link (9) are threaded connection, drive link (9) is installed bearing (13) to be located by guide sleeve (15) and bearing cap (12) and step up, drive link (9) connects through handwheel (10) and uses round nut (11) to lock, front seat ring (18), recoil ring (19), spring seat (20), butterfly spring (21), valve seat insert (22) is at valve body (1) upper composition Split type telescopic valve seat.
2. a kind of lifting type plug valve according to claim 1, it is characterized in that described front seat ring (18) and recoil ring (19) are socketed in valve body (1), valve seat insert (22) is installed at socket place two ends, mounting spring seat (20) between front seat ring (18) and rear seat ring (19), spring seat (20) is installed butterfly spring (21).
3. a kind of lifting type plug valve according to claim 1, it is characterized in that described cock body (2) is fixed on valve central shaft by valve rod (4) and lower cover (3), lower cover (3) is connected with bolt with valve body (1).
4. a kind of lifting type plug valve according to claim 1, is characterized in that described upper driving cover (17) adopts interior swivel nut worm structure to be connected with drive link (9) and underdrive cover (7) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520514319.6U CN204985799U (en) | 2015-07-16 | 2015-07-16 | Lifting type plug -valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520514319.6U CN204985799U (en) | 2015-07-16 | 2015-07-16 | Lifting type plug -valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204985799U true CN204985799U (en) | 2016-01-20 |
Family
ID=55120167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520514319.6U Active CN204985799U (en) | 2015-07-16 | 2015-07-16 | Lifting type plug -valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204985799U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065702A (en) * | 2015-07-16 | 2015-11-18 | 浙江福瑞科流控机械有限公司 | Lifting plug valve and control method thereof |
| CN105927747A (en) * | 2016-07-12 | 2016-09-07 | 阀工阀门有限公司 | Lift plug valve |
| 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 |
| CN108916411A (en) * | 2018-06-22 | 2018-11-30 | 江苏浩博塑业有限公司 | A kind of Telescopic rotating plug-in type loose joint valve |
-
2015
- 2015-07-16 CN CN201520514319.6U patent/CN204985799U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065702A (en) * | 2015-07-16 | 2015-11-18 | 浙江福瑞科流控机械有限公司 | Lifting plug valve and control method thereof |
| CN105927747A (en) * | 2016-07-12 | 2016-09-07 | 阀工阀门有限公司 | Lift plug valve |
| CN105927747B (en) * | 2016-07-12 | 2018-04-06 | 李忠武 | One kind lifting plug valve |
| 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 |
| CN108916411A (en) * | 2018-06-22 | 2018-11-30 | 江苏浩博塑业有限公司 | A kind of Telescopic rotating plug-in type loose joint valve |
| CN108916411B (en) * | 2018-06-22 | 2019-12-27 | 江苏浩博塑业有限公司 | Telescopic rotary plug-in type loose joint valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204985799U (en) | Lifting type plug -valve | |
| CN105065702A (en) | Lifting plug valve and control method thereof | |
| CN105508720A (en) | Corrugated pipe stop valve for photo-thermal electricity generation fused salt | |
| CN111706679A (en) | Self-cleaning stop valve | |
| CN215172326U (en) | Silt-proof butterfly valve | |
| CN203421188U (en) | Worm drive lever-type butterfly valve | |
| RU181995U1 (en) | DOUBLE CABLE PREVENTOR WITH CYLINDRICAL DIES AND HYDRAULIC CONTROL | |
| CN101943272A (en) | Rotary cutting valve | |
| CN201443649U (en) | Instrument block valve of dual seal structure with non-rotary lower valve stem | |
| CN204985801U (en) | Eccentric V -arrangement ball valve | |
| CN202188145U (en) | Pipeline dredging spiral gate valve | |
| RU148782U1 (en) | PIPE LATCH | |
| CN103256394A (en) | Instrument blocking valve with non-rotary valve rod | |
| CN209041732U (en) | A kind of oil equipment control valve for preventing from arbitrarily opening | |
| CN208634396U (en) | A kind of handle stainless steel plate butterfly valve convenient for the installation of fast quick-detach | |
| CN112943978A (en) | Double helix line switching-over structure of multichannel plunger valve | |
| CN111720620A (en) | Stop valve | |
| CN101761684B (en) | Built-in electric control valve of industrial and commercial meter of low-pressure fuel gas pipeline | |
| CN205841823U (en) | A kind of pottery steam valve | |
| CN111810665A (en) | Ball valve with valve seat capable of being replaced online | |
| CN100363660C (en) | Portable double-sealing rotating cutting valve | |
| CN109210266A (en) | A kind of oil equipment control valve for preventing from arbitrarily opening | |
| CN204961871U (en) | Gate valve | |
| CN211738110U (en) | Double helix line switching-over structure of multichannel plunger valve | |
| CN204328050U (en) | A kind of butt welding connects semispherical valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |