CN109357021A - One kind can compensate pressing sleeve formula shut-off valve and method automatically - Google Patents
One kind can compensate pressing sleeve formula shut-off valve and method automatically Download PDFInfo
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- CN109357021A CN109357021A CN201811507929.8A CN201811507929A CN109357021A CN 109357021 A CN109357021 A CN 109357021A CN 201811507929 A CN201811507929 A CN 201811507929A CN 109357021 A CN109357021 A CN 109357021A
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- pressing sleeve
- handwheel
- lead screw
- gland
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- 238000003825 pressing Methods 0.000 title claims abstract description 77
- 238000000034 method Methods 0.000 title claims description 11
- 238000009434 installation Methods 0.000 claims abstract description 17
- 230000000694 effects Effects 0.000 claims abstract description 8
- 210000004907 gland Anatomy 0.000 claims description 43
- 238000012856 packing Methods 0.000 claims description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
- 229910002804 graphite Inorganic materials 0.000 claims description 10
- 239000010439 graphite Substances 0.000 claims description 10
- 230000009471 action Effects 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 5
- 230000037237 body shape Effects 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000008439 repair process Effects 0.000 abstract description 3
- 238000013461 design Methods 0.000 description 6
- 238000007789 sealing Methods 0.000 description 6
- 238000005299 abrasion Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/02—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with screw-spindle
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/42—Valve seats
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/46—Attachment of sealing rings
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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
- F16K31/50—Mechanical actuating means with screw-spindle or internally threaded actuating means
- F16K31/502—Mechanical actuating means with screw-spindle or internally threaded actuating means actuating pivotable valve members
-
- 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
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0008—Mechanical means
- F16K37/0016—Mechanical means having a graduated scale
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The invention discloses one kind can compensate pressing sleeve formula shut-off valve, including handwheel automatically, further includes shape of the mouth as one speaks bracket, autocompensation installation, pressing sleeve formula valve cage；Handwheel is set to the upside of shape of the mouth as one speaks bracket and handwheel connects with shape of the mouth as one speaks bracket activity, and handwheel can be rotated along axle portion；The lower end of handwheel is provided with autocompensation installation, and pressing sleeve formula valve cage is provided on the downside of shape of the mouth as one speaks bracket, and pressing sleeve formula valve cage is placed on the outside of autocompensation installation；Autocompensation installation includes lead screw, disc spring, valve rod, connection housing, and the lower end of lead screw is provided with valve rod, is fixedly connected between lead screw and valve rod by disc spring；The lower end of lead screw and the upper end of valve rod are nested in the inside of connection housing, and the lower end of lead screw is fixedly connected with housing is connect, and the upper end of valve rod moves above and below in connection jacket internal.The present invention can increase the leakproofness of valve, expanded service life；Easy to repair, disassembly, replacement；Use cost can be reduced；Degree of lip-rounding internal stent space is big, easy to maintenance convenient for operation.
Description
Technical field
The present invention relates to a kind of shut-off valves and method more particularly to one kind can compensate pressing sleeve formula shut-off valve and method automatically.
Background technique
Shut-off valve is a kind of one of most popular valve, and why very popular it is, is due to close during opening and closing
Frictional force is small between cover, relatively durable, and Lift is little, and manufacture is easy, easy to maintenance, is applicable not only to mesolow, and
And it is suitable for high pressure, it is widely used in the fields such as petroleum, chemical industry, smelting, electric power.
But conventional valves have manual, electric, pneumatic and surge, when pipeline pressure is high, fluctuation is big, valve will
It is not closed completely, especially electronic, the pneumatic and valve that surges often generates leakage.In addition, inevitably internal after valve prolonged use
Abrasion can be generated, worn out valve will also result in leakage, therefore need replacing entire valve usually to guarantee normal use, this
Leakage puzzlement and cost pressure will be caused to user.
Summary of the invention
In order to solve shortcoming present in above-mentioned technology, the present invention provides one kind can compensate the cut-off of pressing sleeve formula automatically
Valve and method.
In order to solve the above technical problems, the technical solution adopted by the present invention is that: one kind can compensate the cut-off of pressing sleeve formula automatically
Valve, including handwheel further include shape of the mouth as one speaks bracket, autocompensation installation, pressing sleeve formula valve cage；Handwheel be set to the upside of shape of the mouth as one speaks bracket and
Handwheel connects with shape of the mouth as one speaks bracket activity, and handwheel can be rotated along axle portion；The lower end of handwheel is provided with autocompensation installation, shape of the mouth as one speaks bracket
Downside be provided with pressing sleeve formula valve cage, pressing sleeve formula valve cage is placed on the outside of autocompensation installation；
Autocompensation installation includes lead screw, disc spring, valve rod, connection housing, and the lower end of lead screw is provided with valve rod, lead screw and valve
It is fixedly connected between bar by disc spring；The lower end of lead screw and the upper end of valve rod are nested under the inside of connection housing, lead screw
End with connect housing and be fixedly connected, the upper end of valve rod is moved above and below connecting jacket internal；Housing is connected to connect by scotch
On shape of the mouth as one speaks bracket, connects housing and scotch slides above and below along the left vertical bar of shape of the mouth as one speaks bracket or right vertical bar；When scotch stress
When moving above and below with lead screw, the position of scotch can show the aperture of current state lower valve；Scotch can limit connection housing
Rotation can apply the effect that make disc spring deformation to disc spring when lead screw is threadingly rotated by external force upper and lower movement
Power, active force, which can be transmitted on valve rod, moves valve rod above and below, and the disc spring of deformation has elasticity, can further apply pressure downwards
Power, thus realize valve opening and closing and automatic compensating action；The lower end of valve rod is provided with spool.
Pressing sleeve formula valve cage includes shell, valve seat, pressing sleeve, gland；The lower outside of valve rod is equipped with gland, the upper end of gland
It is fixedly connected with shape of the mouth as one speaks bracket, the arranged on left and right sides of gland is provided with lug boss and the center of lug boss offers upper and lower run through
Gland bolt hole；Pressing sleeve is located at the lower section of gland, and upper end, the lower end of pressing sleeve are provided with the step seam allowance of protrusion, and pressing sleeve is logical
It crosses step seam allowance to be meshed with gland, the lower end of pressing sleeve is provided with valve seat, and valve seat, which is engaged by step seam allowance with pressing sleeve, to connect；Valve
Seat is meshed with spool realizes the open and close of entire valve；Shell wraps up in the outside set in valve seat and pressing sleeve, and the top of shell is provided with
Casing bolts hole, casing bolts hole and gland bolt hole are mutually aligned and the inside of the two insertion fixing bolt, fixing bolt make
Gland can be with shell close proximity, to realize gland, pressing sleeve, the close proximity between valve seat three；Shell and valve seat it
Between, between pressing sleeve and gland be provided with gasket；Opening fixing bolt can be such that shell is detached from from entire valve, from disengaging
Old valve seat can be taken out after taking-up pressing sleeve in shell and more renews valve seat, realize the disassembly and replacement of valve seat.
The axle portion of handwheel is equipped with ut socket, and the outer upper of ut socket is provided with handwheel locking nut, and handwheel is logical
The tight nut of hand wheel lock is crossed to be fixedly connected with ut socket；The outer lower portion of ut socket is equipped with bearing, and bearing is embedded at the shape of the mouth as one speaks
In the cross tube of bracket；Feed screw nut is provided on the inside of ut socket, feed screw nut is fixedly connected with ut socket, lead screw spiral shell
Female inside is plugged with lead screw and feed screw nut connects with the threaded upper ends of lead screw；It can be turned by handwheel under the action of bearing
The dynamic rotation for driving ut socket and feed screw nut, moves lead screw above and below.
Graphite packing is gripped between gland and valve rod, upper end, the lower end of graphite packing are respectively arranged with filler pressing sleeve, fill out
Backing strap；Graphite packing can be sealed between pressing sleeve formula valve cage and autocompensation installation.
The upper end of valve rod is equipped with divided ring, and divided ring is placed in the inside of connection housing, when the valve is open, lead screw
Drive connection housing move upwards, due to divided ring can holding connection housing lower end, divided ring can with ovable valve stem to
Upper movement, divided ring can also prevent valve rod from rotating.
The specific steps of pressing sleeve formula shut-off valve application method can be compensated automatically are as follows:
A, shutoff valve is to be divided into valve upper body and shell before the use, and automatic compensation dress has been wrapped up in valve upper body
Shape of the mouth as one speaks bracket, gland and the handwheel set, shell can wrap up valve rod, spool；
B, the import of shell, outlet are connected respectively to inlet pipe, in outlet pipe；Be sequentially placed in shell valve seat, gasket,
Pressing sleeve；
C, valve upper body is mounted on shell, is plugged on valve rod inside pressing sleeve, with fixing bolt by shell and valve
The gland of upper body screws；
D, handwheel is rotated clockwise until flowing out at outlet spout without any fluid, and valve is closed at this time, records stop at this time
The position of block is valve closure；
E, fluid flows out in rotation hand wheel to outlet spout counterclockwise, and valve is opened at this time, records the position of scotch at this time
For valve opening width, valve closure and valve opening width can make with late gate using more intuitively and conveniently.
Sealing redeeming of the present invention to spool, valve seat, makes spool, valve seat be in sealing state always, can increase
The leakproofness of valve, expanded service life；Two sections of stem designs keep valve rod easy to process, and intensity is good, and bending resistance is big；Convenient for dimension
It repairs, dismantle, replace；The design of pressing sleeve formula valve cage not only guarantees the airtightness of valve internal, can also carry out more to the valve seat of abrasion
It changes, and the design of pressing sleeve formula valve cage can be applicable to sizes, model, the shell of shape, valve body, realize multi-purpose valve
Effect can reduce use cost；Degree of lip-rounding bracket it is compact-sized, enabling capabilities are strong, and torque resistant ability is big；Degree of lip-rounding internal stent
Space is big, easy to maintenance convenient for operation.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention.
Fig. 2 is the overall structure diagram of enclosure interior.
Fig. 3 is the overall structure diagram of handwheel axle portion.
In figure: 1, shell；2, valve rod；3, valve seat；4, spool；5, pressing sleeve；6, gland；7, fixing bolt；8, shape of the mouth as one speaks bracket；
9, scotch；10, divided ring；11, handwheel；12, ut socket；13, bearing；14, handwheel locking nut；15, lead screw；16, silk
Thick stick nut；17, housing is connected；18, disc spring；19, Packing seat；20, graphite packing；21, filler pressing sleeve；22, step seam allowance.
Specific embodiment
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
One kind shown in FIG. 1 can compensate pressing sleeve formula shut-off valve, including handwheel 11 automatically, further include shape of the mouth as one speaks bracket 8, automatic benefit
Repay device, pressing sleeve formula valve cage；Handwheel 11 is set to the upside of shape of the mouth as one speaks bracket 8 and handwheel 11 connects with 8 activity of shape of the mouth as one speaks bracket, handwheel
11 can rotate along axle portion；The lower end of handwheel 11 is provided with autocompensation installation, and the downside of shape of the mouth as one speaks bracket 8 is provided with pressure sleeve valve
Cage, pressing sleeve formula valve cage are placed on the outside of autocompensation installation；
Autocompensation installation includes lead screw 15, disc spring 18, valve rod 2, connection housing 17, and the lower end of lead screw 15 is provided with valve rod
2, it is fixedly connected between lead screw 15 and valve rod 2 by disc spring 18；The lower end of lead screw 15 is nested with outside connecting with the upper end of valve rod 2
The inside of set 17, the lower end of lead screw 15 are fixedly connected with housing 17 is connect, and the upper end of valve rod 2 is upper and lower in 17 inside of connection housing
Movement；Connection housing 17 is connected on shape of the mouth as one speaks bracket 8 by scotch 9, and connection housing 17 and scotch 9 are along shape of the mouth as one speaks bracket 8
Left vertical bar or right vertical bar slide above and below；It is provided with pointer on scotch 9, is provided on the left vertical bar or right vertical bar of shape of the mouth as one speaks bracket 8
Scale, when 9 stress of scotch moves above and below with lead screw 15, pointer can show the aperture of current state lower valve with scale；Only
Motion block 9 can limit the rotation of connection housing 17, can be to dish when lead screw 15 is threadingly rotated upper and lower movement by external force
Spring 18 applies the active force for making 18 deformation of disc spring, and active force, which can be transmitted on valve rod 2, moves valve rod 2 above and below；Under valve rod 2
End is provided with spool 4；The disc spring 18 of deformation has elasticity, when pipeline pressure fluctuation causes spool 4 to receive upward power and makes valve
Door it is closed not tight when, disc spring 18 can further press on downwards, spool 4 be compressed, to realize that valve compensates work automatically
With；
As depicted in figs. 1 and 2, pressing sleeve formula valve cage includes shell 1, valve seat 3, pressing sleeve 5, gland 6；The lower outside of valve rod 2
It is equipped with gland 6, upper end and the shape of the mouth as one speaks bracket 8 of gland 6 are fixedly connected, and the arranged on left and right sides of gland 6 is provided with lug boss and convex
The center in the portion of rising offers perforative gland bolt hole up and down；Pressing sleeve 5 is located at the lower section of gland 6, and upper end, the lower end of pressing sleeve 5 are equal
It is provided with the step seam allowance 22 of protrusion, pressing sleeve 5 is meshed by step seam allowance 22 with gland 6, and the lower end of pressing sleeve 5 is provided with valve seat
3, valve seat 3, which is engaged by step seam allowance 22 with pressing sleeve 5, to connect；Valve seat 3 is meshed with spool 4 and realizes the open and close of entire valve；Shell
Body 1, which is wrapped up in, to be set in the outside of valve seat 3 and pressing sleeve 5, and the top of shell 1 is provided with casing bolts hole, casing bolts hole and gland bolt
Hole is mutually aligned and the inside of the two insertion fixing bolt 7, fixing bolt 7 enable gland 6 and 1 close proximity of shell, thus
Realize gland 6, pressing sleeve 5, the close proximity between 3 three of valve seat；It is all provided between shell 1 and valve seat 3, between pressing sleeve 5 and gland 6
It is equipped with gasket；Opening fixing bolt 7 can be such that shell 1 is detached from from entire valve, after taking out pressing sleeve 5 in the shell 1 of disengaging
Old valve seat 3 can be taken out and more renew valve seat 3, realize the disassembly and replacement of valve seat 3.
As shown in figure 3, the axle portion of handwheel 11 is equipped with ut socket 12, the outer upper of ut socket 12 is provided with handwheel
Locking nut 14, handwheel 11 are fixedly connected by handwheel locking nut 14 with ut socket 12；The outer lower portion of ut socket 12
It is equipped with bearing 13, bearing 13 is in the cross tube of shape of the mouth as one speaks bracket 8；The inside of ut socket 12 is provided with feed screw nut
16, feed screw nut 16 is fixedly connected with ut socket 12, the inside of feed screw nut 16 be plugged with lead screw 15 and feed screw nut 16 with
The threaded upper ends of lead screw 15 connect；Under the action of bearing 13 ut socket 12 and lead screw can be driven by the rotation of handwheel 11
The rotation of nut 16 moves lead screw 15 above and below.
Graphite packing 20 is gripped between gland 6 and valve rod 2, upper end, the lower end of graphite packing 20 are respectively arranged with filler
Pressing sleeve 21, Packing seat 19；Graphite packing 20 can be sealed between pressing sleeve formula valve cage and autocompensation installation.
The upper end of valve rod 2 is equipped with divided ring 10, and divided ring 10 is placed in the inside of connection housing 17, when valve is opened
When, lead screw 15 drive connection housing 17 move upwards, due to divided ring 10 can holding connection housing 17 lower end, it is split
Ring 10 can be moved upwards with ovable valve stem 2, and divided ring 10 can also prevent valve rod 2 from rotating.
The application method step of pressing sleeve formula shut-off valve can be compensated automatically are as follows:
A, shutoff valve is to be divided into valve upper body and shell 1 before the use, and automatic compensation has been wrapped up in valve upper body
Shape of the mouth as one speaks bracket 8, gland 6 and the handwheel 11 of device, shell 1 can wrap up valve rod 2, spool 4；
B, the import of shell 1, outlet are connected respectively to inlet pipe, in outlet pipe；Valve seat 3, sealing are sequentially placed in shell 1
Pad, pressing sleeve 5；
C, valve upper body is mounted on shell 1, is plugged on valve rod 2 inside pressing sleeve 5, with fixing bolt 7 by shell 1 with
The gland 6 of valve upper body screws；
D, handwheel 11 is rotated clockwise until flowing out at outlet spout without any fluid, and valve is closed at this time, and record stops at this time
The position of motion block 9 is valve closure；
E, rotation hand wheel 11 counterclockwise to fluid in outlet spout flows out, and valve is opened at this time, records the position of scotch 9 at this time
It is set to valve opening width, valve closure and valve opening width can make with late gate using more intuitively and conveniently.
When the valve is closed, handwheel 11 is rotated clockwise under the action of bearing 13, ut socket 12 can be with handwheel 11
It rotates clockwise, and ut socket 12 can drive feed screw nut 16 to rotate clockwise, upper end and lead screw spiral shell due to lead screw 15
Female 16 threaded engagements, lower end are fixedly connected with housing 17 is connect, when feed screw nut 16 rotates, due to feed screw nut 16 and screw rod
15 screw thread be it is left-handed, therefore, screw rod 15 can only move down, and connect housing 17 with scotch 9 also simultaneously to downward
It is mobile, meanwhile, the scale when pointer on scotch 9 can be with indicating closing can record scale at this time and use convenient for next time；
When the lower end of screw rod 15 moves down, the compressed power of disc spring 18 deformation, the downward active force of screw rod 15 is transmitted to
On valve rod 2, valve rod 2 is moved down, by engaging for spool 4 and valve seat 3, to achieve the purpose that valve is closed；
When valve opening, the rotation hand wheel 11 counterclockwise under the action of bearing 13, ut socket 12 can be with handwheel 11
Rotation counterclockwise, and ut socket 12 can drive feed screw nut 16 to rotate counterclockwise, upper end and lead screw spiral shell due to lead screw 15
Female 16 threaded engagements, lower end are fixedly connected with housing 17 is connect, when feed screw nut 16 rotates, due to feed screw nut 16 and screw rod
15 screw thread be it is left-handed, therefore, screw rod 15 can only move up, and connect housing 17 with scotch 9 also simultaneously to upward
It is mobile；
When the lower end of screw rod 15 moves up, drive connection housing 17 moved up with scotch 9, connect housing 17 and
The holding effect of divided ring 10 drives the valve rod 2 being fixedly connected with divided ring 10 to move up, and is detached from spool 4 and valve seat 3
Engagement, to achieve the purpose that valve is opened；The pointer on scotch 9 can indicate scale when opening at this time, can record this
Shi Kedu uses convenient for next time.
The present invention has the advantage that compared with prior art are as follows:
A, when pipeline pressure fluctuates or when valve is using electronic, pneumatic and hydraulic executer or mechanical wear
When, the power up pushed up may make sealing be not closed completely, but due to there is disc spring external force, can rise to the sealing of spool, valve seat
Compensating action makes spool, valve seat be in sealing state always, can increase leakproofness, the expanded service life of valve；
B, two sections of stem designs are convenient for applying external force to valve rod, because valve rod and screw rod are self-existent；Make valve rod just
In processing, intensity is good, and bending resistance is big；Easy to repair, disassembly, replacement；
C, the design of pressing sleeve formula valve cage not only guarantees the airtightness of valve internal, can also replace to the valve seat of abrasion,
When the prooving of valve seat it is larger cannot in use, valve need not be bought again, as long as and replace valve seat, saved and be replaced with
This；The design of pressing sleeve formula valve cage can be applicable to sizes, model, the shell of shape, valve body, realize the effect of multi-purpose valve
Fruit can reduce use cost；
D, degree of lip-rounding bracket is compact-sized, and enabling capabilities are strong, and torque resistant ability is big；Degree of lip-rounding internal stent space is big, just
It is easy to maintenance in operation.
Above embodiment is not limitation of the present invention, and the present invention is also not limited to the example above, this technology neck
The variations, modifications, additions or substitutions that the technical staff in domain is made within the scope of technical solution of the present invention, also belong to this hair
Bright protection scope.
Claims (6)
1. one kind can compensate pressing sleeve formula shut-off valve, including handwheel (11) automatically, it is characterised in that: further include shape of the mouth as one speaks bracket (8), from
Dynamic compensation device, pressing sleeve formula valve cage；The handwheel (11) is set to the upside of shape of the mouth as one speaks bracket (8) and handwheel (11) and shape of the mouth as one speaks bracket
(8) activity connects, and handwheel (11) can be rotated along axle portion；The lower end of the handwheel (11) is provided with autocompensation installation, shape of the mouth as one speaks branch
Pressing sleeve formula valve cage is provided on the downside of frame (8), pressing sleeve formula valve cage is placed on the outside of autocompensation installation；
The autocompensation installation includes lead screw (15), disc spring (18), valve rod (2), connects housing (17), the lead screw (15)
Lower end is provided with valve rod (2), is fixedly connected between lead screw (15) and valve rod (2) by disc spring (18)；Under the lead screw (15)
End is nested with the upper end of valve rod (2) in the inside for connecting housing (17), and the lower end of lead screw (15) is fixed with housing (17) are connect
Connect, the upper end of valve rod (2) is in the internal upper and lower movement of connection housing (17)；The connection housing (17) is connected by scotch (9)
It connects on shape of the mouth as one speaks bracket (8), connection housing (17) is slided with scotch (9) along the left vertical bar of shape of the mouth as one speaks bracket (8) or right vertical bar above and below
Dynamic, when scotch (9) stress moves above and below with lead screw (15), the position of scotch (9) can show current state lower valve
Aperture；Scotch (9) can limit the rotation of connection housing (17), when lead screw (15) is threadingly rotated above and below by external force
When movement, can disc spring (18) be applied with the active force for making disc spring (18) deformation, active force, which can be transmitted on valve rod (2), makes valve rod
(2) disc spring (18) of upper and lower movement, deformation has elasticity, can further press on downwards, thus realize the opening and closing of valve with
Automatic compensating action；The lower end of valve rod (2) is provided with spool (4).
2. according to claim 1 can compensate pressing sleeve formula shut-off valve automatically, it is characterised in that: the pressing sleeve formula valve cage includes
Shell (1), valve seat (3), pressing sleeve (5), gland (6)；The lower outside of the valve rod (2) is equipped with gland (6), gland (6)
Upper end is fixedly connected with shape of the mouth as one speaks bracket (8), and the arranged on left and right sides of gland (6) is provided with lug boss and the center of lug boss opens up
There is perforative gland bolt hole up and down；The pressing sleeve (5) is located at the lower section of gland (6), and upper end, the lower end of pressing sleeve (5) are respectively provided with
There is the step seam allowance (22) of protrusion, pressing sleeve (5) is meshed by step seam allowance (22) with gland (6), the lower end setting of pressing sleeve (5)
Have valve seat (3), valve seat (3) is meshed by step seam allowance (22) with pressing sleeve (5)；Valve seat (3) be meshed with spool (4) realize it is whole
The open and close of a valve；The shell (1) wraps up in the outside set in valve seat (3) and pressing sleeve (5), and the top of shell (1) is provided with shell
Bolt hole, casing bolts hole and gland bolt hole are mutually aligned and the inside of the two insertion fixing bolt (7), fixing bolt (7)
Make gland (6) can be with shell (1) close proximity, to realize gland (6), pressing sleeve (5), close between valve seat (3) three
Connect；Gasket is provided between the shell (1) and valve seat (3), between pressing sleeve (5) and gland (6)；Open fixing bolt
(7) it is detached from shell (1) from entire valve, pressing sleeve (5) is successively taken out from the shell (1) of disengaging, old valve seat (3) is replaced afterwards
New valve seat (3), realizes the disassembly and replacement of valve seat (3).
3. according to claim 1 can compensate pressing sleeve formula shut-off valve automatically, it is characterised in that: the axle portion of the handwheel (11)
It is equipped with ut socket (12), the outer upper of ut socket (12) is provided with handwheel locking nut (14), and handwheel (11) passes through
Handwheel locking nut (14) is fixedly connected with ut socket (12)；The outer lower portion of ut socket (12) is equipped with bearing (13),
Bearing (13) is in the cross tube of shape of the mouth as one speaks bracket (8)；Feed screw nut (16) are provided on the inside of the ut socket (12),
Feed screw nut (16) is fixedly connected with ut socket (12), and lead screw (15) and feed screw nut are plugged on the inside of feed screw nut (16)
(16) connect with the threaded upper ends of lead screw (15)；Nut set can be driven by the rotation of handwheel (11) under the action of bearing (13)
The rotation of cylinder (12) and feed screw nut (16) moves lead screw (15) above and below.
4. according to claim 2 can compensate pressing sleeve formula shut-off valve automatically, it is characterised in that: the gland (6) and valve rod
(2) it is gripped between graphite packing (20), upper end, the lower end of graphite packing (20) are respectively arranged with filler pressing sleeve (21), filler
It pads (19)；Graphite packing (20) can be sealed between pressing sleeve formula valve cage and autocompensation installation.
5. pressing sleeve formula shut-off valve can be compensated described in any one automatically according to claim 1~4, it is characterised in that: the valve
The upper end of bar (2) is equipped with divided ring (10), and divided ring (10) is placed in the inside of connection housing (17), when valve is opened
When, lead screw (15) drives connection housing (17) to move upwards, and divided ring (10) holding drives in the lower end of connection housing (17)
Valve rod (2) moves upwards, and divided ring (10) can also prevent valve rod (2) to rotate.
6. the application method that one kind can compensate pressing sleeve formula shut-off valve automatically as described in claim 1, it is characterised in that: the method
Specific steps are as follows:
A, shutoff valve is to be divided into valve upper body and shell (1) before the use, and automatic compensation dress has been wrapped up in valve upper body
Shape of the mouth as one speaks bracket (8), gland (6) and the handwheel (11) set, shell (1) can wrap up valve rod (2), spool (4)；
B, the import of shell (1), outlet are connected respectively to inlet pipe, in outlet pipe；Valve seat (3), close is sequentially placed in the shell (1)
Packing, pressing sleeve (5)；
C, valve upper body is mounted on shell (1), so that valve rod (2) is plugged on pressing sleeve (5) internal, with fixing bolt (7) by shell
Body (1) and the gland (6) of valve upper body screw；
D, handwheel (11) are rotated clockwise until flowing out at outlet spout without any fluid, valve is closed at this time, records stop at this time
The position of block (9) is valve closure；
E, rotation hand wheel (11) counterclockwise to fluid in outlet spout flows out, and valve is opened at this time, records the position of scotch (9) at this time
It is set to valve opening width, valve closure and valve opening width can make with late gate using more intuitively and conveniently.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811507929.8A CN109357021A (en) | 2018-12-11 | 2018-12-11 | One kind can compensate pressing sleeve formula shut-off valve and method automatically |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811507929.8A CN109357021A (en) | 2018-12-11 | 2018-12-11 | One kind can compensate pressing sleeve formula shut-off valve and method automatically |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109357021A true CN109357021A (en) | 2019-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811507929.8A Pending CN109357021A (en) | 2018-12-11 | 2018-12-11 | One kind can compensate pressing sleeve formula shut-off valve and method automatically |
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| CN (1) | CN109357021A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110281394A (en) * | 2019-08-05 | 2019-09-27 | 承德鼎信自动化工程股份有限公司 | A kind of powder of adjustable openings is fed control valve device in advance |
| CN111120722A (en) * | 2020-03-04 | 2020-05-08 | 德维阀门铸造（苏州）股份有限公司 | Pneumatic connecting throttle valve indicating mechanism |
| CN113374875A (en) * | 2021-08-16 | 2021-09-10 | 上海阀门厂股份有限公司 | Stop valve suitable for high-temperature and high-pressure working condition |
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| CN113374875A (en) * | 2021-08-16 | 2021-09-10 | 上海阀门厂股份有限公司 | Stop valve suitable for high-temperature and high-pressure working condition |
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Application publication date: 20190219 |