CN106870812A - A kind of band rotary drag stop valve application method - Google Patents
A kind of band rotary drag stop valve application method Download PDFInfo
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- CN106870812A CN106870812A CN201710283447.8A CN201710283447A CN106870812A CN 106870812 A CN106870812 A CN 106870812A CN 201710283447 A CN201710283447 A CN 201710283447A CN 106870812 A CN106870812 A CN 106870812A
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- valve
- rod
- sealing surface
- control
- seat
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/60—Handles
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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
- F16K1/32—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
- 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
- F16K1/36—Valve members
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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
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/42—Valve seats
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The present invention relates to a kind of band rotary drag stop valve application method, its step is as follows：1. from off state to opening：Turn clockwise handwheel, drives and moved on flap, valve opening；2. from opening to closed mode：The slow upper control-rod of lifting, until many ends cooperate with positioning hole wall；Then turn clockwise upper control-rod, drives lower control arm and dividing plate to rotate, until dividing plate shuts inlet channel completely；Then control to be moved under upper control-rod, positioning hole wall departs from many ends；Turn clockwise upper control-rod, cutter head is moved between sealing surface of seat and valve clack sealing surface, and bottom knife is touched sealing surface of seat；Then control flap is moved down, until valve clack sealing surface contact cutter；Then ceaselessly clockwise, control-rod in rotate counterclockwise, drive scraper to shave the medium at sealing surface of seat and valve clack sealing surface, have the advantages that application method is simple, convenient, keep that sealing surface is frayed less, enhancing life of valve.
Description
Technical field
The present invention relates to a kind of stop valve, more particularly, to a kind of band rotary drag stop valve application method.
Background technology
Stop valve blocks class valve as one kind is extremely important, and its sealing is to apply moment of torsion by valve rod, and valve rod exists
On axial direction to flap apply pressure, valve clack sealing surface is brought into close contact with sealing surface of seat, prevention medium along sealing surface it
Between slot leakage, the sealing pair of stop valve is made up of valve clack sealing surface and sealing surface of seat, and valve rod drives flap along valve seat
Center line moves vertically, and its shortcoming is：When traditional stop valve is used in the ore pulp with viscosity and containing solid particle
During Deng medium, medium is easily sticked on sealing pair, causes valve clack sealing surface closely to be combined with sealing surface of seat, so as to produce
Raw leakage, while the solid particle contained in medium is clipped on sealing pair, is easily destroyed sealing pair, and service life is short.
The content of the invention
For defect present in prior art, the present invention provides a kind of using containing solid particle, and with viscosity
The operating mode such as medium when, medium is not easy to be bonded on sealing pair, good airproof performance, the band rotary drag stop valve of long lifespan and its
Assembly method and application method.
The present invention is realized by following technical solution：
One kind band rotary drag stop valve includes:Valve body, valve rod, flap and bonnet, valve inner are provided with inlet channel, go out
Mouth runner and lumen, outlet flow are communicated with lumen, vertical cylindrical aditus laryngis are provided with inlet channel outlet side, on the aditus laryngis
End face is provided with sealing surface of seat, and bonnet is arranged on valve body middle part upper end, and bonnet lower is flange, upper end in the middle part of the flange and valve body
It is fixedly connected with fastening assembly, bonnet middle part is provided with stuffing-box, and filler and gland are provided with the stuffing-box, fills out
Material gland is arranged at stuffing-box by adjusting part, and compresses filler downwards, and bonnet top is provided with headkerchief, is set in the headkerchief
It is fluted, valve stem nut and stop collar are provided with the groove, stop collar is threadably secured installed in groove upper end, and is limited
Valve stem nut is moved up and down, and trapezoidal thread is provided with inside valve stem nut, and valve stem nut top is provided with handwheel, and valve rod lower end is worn
Saturating stuffing-box stretches into lumen；Flap and flap seat are provided with lumen, flap is fixedly mounted on valve rod lower end, flap by flap seat
Lower surface is provided with the valve clack sealing surface that sealing can be formed with sealing surface of seat, it is characterised in that：It is provided with below sealing surface of seat
Horizontal dividing plate, the dividing plate is provided with a runner hole consistent with throat diameter；Doctor assemblies are provided with lumen, the scraper group
Part includes：Control device and scraper, the control device include：Upper control-rod, lower control arm, compression spring and sealing ring, upper control
The flange that bar upper end processed penetrates bonnet lower end stretches to top, and cylindrical place in control-rod upper end is provided with polygonal lift block on this,
The lift block lower surface is provided with sphere, and control-rod bottom is provided with endoporus on this, and the endoporus includes barrel-shaped upper and lower chamber, epicoele
The positioning hole wall of polygonized structure is provided between room and lower chambers, upper chamber's inner diameter is more than lower chambers inner diameter, cavity of resorption
O-ring seal is provided with the hole wall of room；Lower control arm lower end is attached with dividing plate with key, and rotation lower control arm can be closed with dynamic dividing plate
Close or open inlet channel；Lower control arm upper end is provided with many ends, and many ends stretch into upper chamber, and many ends can be with location hole
Wall is engaged, so as to rotate control-rod lower control arm can be driven to rotate, between many end lower surfaces and lower chambers upper surface
It is provided with compression spring；Scraper is fixedly installed on control-rod lower end, and scraper entirety l-shaped, scraper is made up of cutter head with knife tail,
Knife tail is arranged on control-rod lower end straight down, and cutter head is horizontally disposed with, and the upper and lower end face of cutter head is respectively equipped with upper and lower blade, leads to
The upper control-rod of rotation is crossed, upper and lower blade can be driven to strike off the medium at valve clack sealing surface and sealing surface of seat respectively；Under bonnet
The upper end surface of portion's flange is provided with the V-type dovetail groove of horizontal direction and is the fixture block of U-shape structure, the fixture block bottom with top view
The V-type rail for being engaged with V-type dovetail groove and forming horizontally-guided is provided with, the fixture block top is provided with and forms 20~35 ° with horizontal plane
The lifting face at angle, moves horizontally the fixture block, and the lifting face on fixture block top forms the cooperation of tangent with sphere, can be lifted or declined
Upper control-rod, the wall portion of the lumen is provided with vertical gathering sill, and the valve rod lower end is fixed with the horizontal axis of guide, and this is led
Enter in gathering sill to shaft extension.
Further, abrasive rubber is provided with the dividing plate above and below, the abrasive rubber is fixed in the way of colloidal sol
The upper and lower end of dividing plate.
Further, the blade is made up of elastomeric material.
Further, the cavity wall portion of the cylindrical aditus laryngis is provided with one layer of rubber diaphragm, and rotating barrier can extrude the rubber
Glue film, closes inlet channel.
A kind of band rotary drag stop valve assembly method of the invention, its step is as follows：
A. each parts are cleaned with clear water, and is dried up with hair-dryer；
B. the assembling of valve body and dividing plate：Dividing plate is loaded into the position reserved in valve body, and dividing plate is rotated, makes the dividing plate need to be with lower control
The position of bar connection moves to the position of needs；
C. the assembling of the part such as valve rod and flap：The flap back side is stretched into valve rod lower end, and flap seat loads the flap back side, and standing valve
Bar, what the axis of guide was open into is fixed on stem lower portion；
D. the assembling of the part such as control device, scraper：O-ring is loaded at lower chambers hole wall, compression spring is positioned over cavity of resorption
Room upper surface, many ends of lower control arm upper end stretch into upper chamber, keep compression spring to be placed in many end lower surfaces and lower chambers
Between upper surface, keep keeping sealing between lower chambers hole wall and lower control arm are cylindrical, knife tail is fixedly installed on straight down
Control-rod lower end, keeps cutter head to be in horizontally disposed, by the lift block of upper control-rod upper end by being reserved in end flanges under bonnet
Hole stretch to top, the V-type rail of the fixture block bottom of U-shape structure is loaded into V-type dovetail groove, keep the fixture block can be along V-type dovetail
Groove is moved, and keeps the lifting face on fixture block top that the cooperation of tangent is formed with the sphere of lift block lower end, and keep upper control-rod
It is cylindrical to be sealed and bonnet between, key is loaded the keyway of lower control arm lower end；
E. the assembling of bonnet assemblies and overall package：The lower that sequence number c is completed loads the lumen position of valve body, keeps valve
Flap seal face is combined with sealing surface of seat, keeps the axis of guide to stretch into gathering sill, at the stuffing-box in the middle part of bonnet, puts successively
Enter 4~6 fillers and gland, slowly lift the bonnet assemblies for having assembled to the surface of valve rod, slowly put down valve
Cap assemblies, make the upper end of valve rod penetrate bonnet stuffing-box, filler, gland and headkerchief successively, until under bonnet end flanges with
Valve body upper end is combined, while keeping lower control arm to be connected with dividing plate, keeps the key of lower control arm lower end and the keyway of dividing plate
It is engaged, finally with fastening assembly fixed valve body and bonnet, keeps the sealing between valve body and bonnet；
F. the assembling of the part such as valve stem nut, stop collar and handwheel：Using the trapezoidal thread in valve stem nut and valve rod top
Externally threaded cooperation, slow rotary valve rod nut is moved down, until the bottom portion of groove that valve stem nut lower end enters in headkerchief, then
Stop collar is threadably secured installed in groove upper end, handwheel is fixedly mounted on valve stem nut top；
G. pressure test：Hydraulic pressure strength experiment, pressurized seal experiment are carried out successively；
H. by a kind of band rotary drag stop valve drying of pass the test, then japanning, lead sealing, storage.
A kind of band rotary drag stop valve application method of the invention, its step is as follows：
1. from off state to opening：Turn clockwise handwheel, drives valve stem nut rotation, then with ovable valve stem, flap etc.
Moved on parts, valve opening；
2. from opening to closed mode：Fixture block is promoted to be moved along V-type dovetail groove, the slow upper control-rod of lifting, not
Stop by a small margin clockwise, rotate back and forth control-rod counterclockwise, until many ends with positioning hole wall cooperate；Then up time
The upper control-rod of pin rotation, drives lower control arm and dividing plate to rotate, until dividing plate shuts inlet channel completely；Then fixture block edge is promoted
The movement of V-type dovetail groove opposite direction, upper control-rod is moved down in the presence of compression spring, positioning hole wall departs from many ends；
Turn clockwise upper control-rod, and when cutter head is moved between sealing surface of seat and valve clack sealing surface, stop the rotation upper control-rod,
Continue to press on fixture block to be moved along V-type dovetail groove opposite direction, until bottom knife touches sealing surface of seat；Then rotate counterclockwise
The parts such as handwheel, band ovable valve stem, flap are moved down, until valve clack sealing surface contact cutter；Then ceaselessly clockwise, the inverse time
The upper control-rod of pin rotation, drives scraper to shave the medium at sealing surface of seat and valve clack sealing surface, is then controlled in rotate counterclockwise
Bar processed, until band dynamic cutter head departs between sealing surface of seat and valve clack sealing surface；Rotate counterclockwise handwheel is then continued to, valve is driven
The parts such as bar, flap are moved down, until valve clack sealing surface compresses sealing surface of seat.
The advantage of the invention is that：The design of scraper, can effectively strike off and stick to valve clack sealing surface and sealing surface of seat
On medium, when valve closing, it is not easy to destroy sealing pair, while valve clack sealing surface is more close with sealing surface of seat
With reference to having the advantages that good airproof performance, long service life；The setting of dividing plate, makes scraper when the medium on sealing pair is struck off,
Temporarily Closed inlet channel, prevents medium from sticking on sealing pair again, with further preventing valve clack sealing surface and valve seat
The advantage of sealing surface adhering medium；The setting of control device, with the more preferable rotation for freely controlling scraper, makes scraper more preferable
The medium sticked on sealing pair is struck off, ground mouth runner is turned on and off with more easily control dividing plate；This assembly method has
Have the advantages that easy for installation, accurate, qualification rate is high；This valve application method is simple, convenient, holding sealing surface is frayed less, enhancing
Life of valve.
Brief description of the drawings
Fig. 1 is a kind of opening structural representation with rotary drag stop valve of the present invention.
Fig. 2 is a kind of closed mode structural representation with rotary drag stop valve of the present invention.
Specific embodiment：
It can be seen from Fig. 1 and Fig. 2, a kind of band rotary drag stop valve of the present invention includes:Valve body 1, valve rod 20, flap 5 and valve
Lid 9, is provided with inlet channel, outlet flow and lumen inside valve body 1, outlet flow is communicated with lumen, in inlet channel outlet side
Vertical cylindrical aditus laryngis is provided with, the aditus laryngis upper surface is provided with sealing surface of seat, bonnet 9 is arranged on the middle part upper end of valve body 1, bonnet
9 bottoms are flange, and the flange is fixedly connected with the middle part upper end fastening assembly 18 of valve body 1, and the middle part of bonnet 9 is provided with filler
Letter, is provided with filler 12 and gland 13 at the stuffing-box, and gland 13 is arranged on stuffing-box by adjusting part 17
Place, and filler 12 is compressed downwards, the top of bonnet 9 is provided with headkerchief, groove is provided with the headkerchief, and valve rod spiral shell is provided with the groove
Female 14 and stop collar 15, stop collar 15 is threadably secured installed in groove upper end, and is limited valve stem nut 14 and moved up and down,
Trapezoidal thread is provided with inside valve stem nut 14, the top of valve stem nut 14 is provided with handwheel 16, and the lower end of valve rod 20 penetrates stuffing-box and stretches
Enter lumen；Flap 5 and flap seat 21 are provided with lumen, flap 5 is fixedly mounted on the lower end of valve rod 20, flap 5 by flap seat 21
Lower surface is provided with the valve clack sealing surface that sealing can be formed with sealing surface of seat, and horizontal dividing plate 2 is provided with below sealing surface of seat,
The dividing plate 2 is provided with a runner hole consistent with throat diameter；Doctor assemblies are provided with lumen, the doctor assemblies include：Control
Device processed and scraper 4, the control device include：Upper control-rod 8, lower control arm 3, compression spring 6 and sealing ring, upper control-rod 8
The flange that upper end penetrates bonnet lower end stretches to top, and cylindrical place in upper end of control-rod 8 is provided with polygonal lift block 11 on this, should
The lower surface of lift block 11 is provided with sphere, and bottom of control-rod 8 is provided with endoporus on this, and the endoporus includes barrel-shaped upper and lower chamber, epicoele
The positioning hole wall of polygonized structure is provided between room and lower chambers, upper chamber's inner diameter is more than lower chambers inner diameter, cavity of resorption
O-ring seal is provided with the hole wall of room；The lower end of lower control arm 3 is attached with dividing plate 2 with key, rotation lower control arm 3 can drive every
Plate 2 turns off or on inlet channel；The upper end of lower control arm 3 is provided with many ends 7, and many ends 7 stretch into upper chamber, many ends 7
Can be engaged with positioning hole wall, so as to rotate control-rod 8 lower control arm 3 can be driven to rotate, the lower surface of many ends 7 and cavity of resorption
Compression spring 6 is provided between the upper surface of room；Scraper 4 is fixedly installed on the lower end of control-rod 8, the overall l-shaped of the scraper 4, scraper 4
It is made up of with knife tail cutter head, knife tail is arranged on the lower end of control-rod 8 straight down, cutter head is horizontally disposed with, the upper and lower end face of cutter head point
Upper and lower blade is not provided with, by the upper control-rod 8 of rotation, upper and lower blade can be driven to strike off valve clack sealing surface and valve base sealing respectively
Medium at face；The V-type dovetail groove of horizontal direction is provided with the upper end surface of the lower flange of bonnet 9 and with top view for U-shaped
The fixture block 10 of structure, the bottom of fixture block 10 is provided with the V-type rail for being engaged with V-type dovetail groove and forming horizontally-guided, the fixture block 10
Top is provided with and forms 20~35 ° of lifting faces at angle with horizontal plane, moves horizontally the fixture block 10, the lifting face on the top of fixture block 10 and ball
Face forms the cooperation of tangent, can lift or decline upper control-rod 8, and the wall portion of the lumen is provided with vertical gathering sill, described
The lower end of valve rod 20 is fixed with the horizontal axis of guide 19, and the axis of guide 19 is stretched into gathering sill.
A kind of band rotary drag stop valve assembly method of the invention, its step is as follows：
A. each parts are cleaned with clear water, and is dried up with hair-dryer；
B. the assembling of valve body 1 and dividing plate 2：Dividing plate 2 is loaded the position reserved in valve body 1, and dividing plate 2 is rotated, makes the dividing plate 2 need to be with
The position of the connection of lower control arm 3 moves to the position of needs；
C. the assembling of valve rod 20 and the grade part of flap 5：The back side of flap 5 is stretched into the lower end of valve rod 20, and flap seat 21 loads flap 5 and carries on the back
Face, and fixed valve rod 20, what the axis of guide 19 was open into is fixed on the bottom of valve rod 20；
D. the assembling of the part such as control device, scraper 4：O-ring is loaded at lower chambers hole wall, compression spring 6 is positioned over down
Chamber upper surface, many ends 7 of the upper end of lower control arm 3 stretch into upper chamber, keep compression spring 6 be placed in the lower surface of many ends 7 with
Between lower chambers upper surface, keep keeping sealing between lower chambers hole wall and lower control arm 3 are cylindrical, fixation sets knife tail straight down
Put in the lower end of upper control-rod 8, keep cutter head to be in horizontally disposed, the lift block 11 of the upper end of upper control-rod 8 is passed through into bonnet lower end
Top is stretched in the hole reserved on flange, and the V-type rail of the bottom of fixture block 10 of U-shape structure is loaded into V-type dovetail groove, keeps fixture block 10
Can be moved along V-type dovetail groove, keep the lifting face on the top of fixture block 10 to form matching somebody with somebody for tangent with the sphere of the lower end of lift block 11
Close, and keep being sealed between the cylindrical hole reserved with end flanges under bonnet of upper control-rod 8, by key loading lower control arm 3 lower end
Keyway；
E. the assembling of bonnet assemblies and overall package：The lower that sequence number c is completed loads the lumen position of valve body 1, keeps
Valve clack sealing surface is combined with sealing surface of seat, keeps the axis of guide 19 to stretch into gathering sill, at the stuffing-box in the middle part of bonnet, according to
It is secondary to be put into 4~6 fillers and gland, the bonnet assemblies that have assembled to the surface of valve rod 20 are slowly lifted, slowly
Bonnet assemblies are put down, the upper end of valve rod 20 is penetrated bonnet stuffing-box, filler 12, gland 13 and headkerchief successively, until valve
The lower end flanges of lid are combined with the upper end of valve body 1, while keeping lower control arm 3 to be connected with dividing plate 2, keep the lower end of lower control arm 2
Key be engaged with the keyway of dividing plate, finally with the fixed valve body of fastening assembly 18 and bonnet, keep close between valve body and bonnet
Envelope；
F. the assembling of the part such as valve stem nut 14, stop collar 15 and handwheel 16：Using trapezoidal thread and valve in valve stem nut 14
The externally threaded cooperation on the top of bar 20, slow rotary valve rod nut 14 is moved down, until the lower end of valve stem nut 14 enters in headkerchief
Bottom portion of groove, then stop collar 15 is threadably secured installed in groove upper end, handwheel 16 is fixedly mounted on valve rod spiral shell
Female 14 tops；
G. pressure test：Hydraulic pressure strength experiment, pressurized seal experiment are carried out successively；
H. by a kind of band rotary drag stop valve drying of pass the test, then japanning, lead sealing, storage.
A kind of band rotary drag stop valve application method of the invention, its step is as follows：
1. from off state to opening：Turn clockwise handwheel 16, drives valve stem nut 14 to rotate, then band ovable valve stem 20,
Moved on the grade parts of flap 5, valve opening；
2. from opening to closed mode：Fixture block 10 is promoted to be moved along V-type dovetail groove, the slow upper control-rod 8 of lifting, and
Ceaselessly by a small margin clockwise, rotate back and forth control-rod 8 counterclockwise, until many ends 7 with positioning hole wall cooperate；Then
Turn clockwise upper control-rod 8, drives lower control arm 3 and dividing plate 2 to rotate, until dividing plate 2 shuts inlet channel completely；Then push away
Dynamic fixture block 10 is moved along V-type dovetail groove opposite direction, and upper control-rod 8 is moved down in the presence of compression spring 6, positions hole wall
Depart from many ends 7；Turn clockwise upper control-rod 8, when cutter head 4 is moved between sealing surface of seat and valve clack sealing surface, stops
Spin-ended turn of upper control-rod 8, continues to press on fixture block 10 and is moved along V-type dovetail groove opposite direction, until bottom knife to touch valve seat close
Front cover；Then rotate counterclockwise handwheel 16, moves down with parts such as ovable valve stem 20, flaps 5, until valve clack sealing surface contact upper slitter
Piece；Then ceaselessly clockwise, control-rod 8 in rotate counterclockwise, drive scraper 4 to shave at sealing surface of seat and valve clack sealing surface
Medium, then control-rod 8 in rotate counterclockwise, until band dynamic cutter head 4 departs between sealing surface of seat and valve clack sealing surface；Connect
The parts such as continuation rotate counterclockwise handwheel 16, band ovable valve stem 20, flap 5 to move down, until valve clack sealing surface compression valve seat is close
Front cover.
In sum, presently preferred embodiments of the present invention is these are only, is not intended to limit the scope of the present invention.
All any modification, equivalent substitution and improvements within the spirit and principles in the present invention, made etc., should be included in of the invention
Within protection domain.
Claims (1)
1. a kind of with rotary drag stop valve application method, the band rotary drag stop valve includes:Valve body, valve rod, flap
And bonnet, valve inner is provided with inlet channel, outlet flow and lumen, and outlet flow is communicated with lumen, in inlet channel outlet
Side is provided with vertical cylindrical aditus laryngis, and the aditus laryngis upper surface is provided with sealing surface of seat, and bonnet is arranged on valve body middle part upper end, bonnet
Bottom is flange, and the flange is fixedly connected with valve body middle part upper end with fastening assembly, and bonnet middle part is provided with stuffing-box, at this
Filler and gland are installed, gland is arranged at stuffing-box by adjusting part, and compression is filled out downwards at stuffing-box
Material, bonnet top is provided with headkerchief, groove is provided with the headkerchief, and valve stem nut and stop collar, stop collar are provided with the groove
It is threadably secured installed in groove upper end, and limits valve stem nut and move up and down, trapezoidal thread is provided with inside valve stem nut,
Valve stem nut top is provided with handwheel, and valve rod lower end penetrates stuffing-box and stretches into lumen；Flap and flap seat, flap are provided with lumen
Valve rod lower end is fixedly mounted on by flap seat, flap lower surface is provided with the flap that can form sealing with sealing surface of seat and seals
Face, is provided with horizontal dividing plate below sealing surface of seat, and the dividing plate is provided with a runner hole consistent with throat diameter；In lumen
Place is provided with doctor assemblies, and the doctor assemblies include：Control device and scraper, the control device include：Upper control-rod, lower control
Bar, compression spring and sealing ring, the flange that upper control-rod upper end penetrates bonnet lower end stretch to top, on this outside control-rod upper end
Polygonal lift block is provided with circle, the lift block lower surface is provided with sphere, and control-rod bottom is provided with endoporus on this, the endoporus bag
Barrel-shaped upper and lower chamber is included, the positioning hole wall of polygonized structure is provided between upper chamber and lower chambers, upper chamber's inner diameter is big
O-ring seal is provided with lower chambers inner diameter, lower chambers hole wall；Lower control arm lower end is attached with dividing plate with key, rotation
Turning lower control arm can turn off or on inlet channel with dynamic dividing plate；Lower control arm upper end is provided with many ends, and many ends are stretched into
Chamber, many ends can be engaged with positioning hole wall, so as to rotate control-rod lower control arm can be driven to rotate, under many ends
Compression spring is provided between end face and lower chambers upper surface；Scraper is fixedly installed on control-rod lower end, and the scraper is overall into L
Type, scraper is made up of cutter head with knife tail, and knife tail is arranged on control-rod lower end straight down, and cutter head is horizontally disposed with, and cutter head is upper and lower
End face is respectively equipped with upper and lower blade, by the upper control-rod of rotation, upper and lower blade can be driven to strike off valve clack sealing surface and valve respectively
Medium at seat sealing surface；The V-type dovetail groove of horizontal direction is provided with the upper end surface of bonnet lower flange and with top view
It is the fixture block of U-shape structure, the fixture block bottom is provided with the V-type rail for being engaged with V-type dovetail groove and forming horizontally-guided, on the fixture block
Portion is provided with and forms 20~35 ° of lifting faces at angle with horizontal plane, moves horizontally the fixture block, and lifting face and the sphere on fixture block top are formed
The cooperation of tangent, can lift or decline upper control-rod, and the wall portion of the lumen is provided with vertical gathering sill, the valve rod lower end
The horizontal axis of guide is fixed with, the axis of guide is stretched into gathering sill,
The step of its application method, is as follows：
1. from off state to opening：Turn clockwise handwheel, drives valve stem nut rotation, then with ovable valve stem, flap etc.
Moved on parts, valve opening；
2. from opening to closed mode：Fixture block is promoted to be moved along V-type dovetail groove, the slow upper control-rod of lifting, not
Stop by a small margin clockwise, rotate back and forth control-rod counterclockwise, until many ends with positioning hole wall cooperate；Then up time
The upper control-rod of pin rotation, drives lower control arm and dividing plate to rotate, until dividing plate shuts inlet channel completely；Then fixture block edge is promoted
The movement of V-type dovetail groove opposite direction, upper control-rod is moved down in the presence of compression spring, positioning hole wall departs from many ends；
Turn clockwise upper control-rod, and when cutter head is moved between sealing surface of seat and valve clack sealing surface, stop the rotation upper control-rod,
Continue to press on fixture block to be moved along V-type dovetail groove opposite direction, until bottom knife touches sealing surface of seat；Then rotate counterclockwise
The parts such as handwheel, band ovable valve stem, flap are moved down, until valve clack sealing surface contact cutter；Then ceaselessly clockwise, the inverse time
The upper control-rod of pin rotation, drives scraper to shave the medium at sealing surface of seat and valve clack sealing surface, is then controlled in rotate counterclockwise
Bar processed, until band dynamic cutter head departs between sealing surface of seat and valve clack sealing surface；Rotate counterclockwise handwheel is then continued to, valve is driven
The parts such as bar, flap are moved down, until valve clack sealing surface compresses sealing surface of seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710283447.8A CN106870812B (en) | 2017-04-26 | 2017-04-26 | A kind of band rotary drag shut-off valve application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710283447.8A CN106870812B (en) | 2017-04-26 | 2017-04-26 | A kind of band rotary drag shut-off valve application method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106870812A true CN106870812A (en) | 2017-06-20 |
| CN106870812B CN106870812B (en) | 2019-01-18 |
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| CN201710283447.8A Active CN106870812B (en) | 2017-04-26 | 2017-04-26 | A kind of band rotary drag shut-off valve application method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111237644A (en) * | 2020-03-27 | 2020-06-05 | 荆门美中美阀门有限公司 | Valve linkage control system on high-pressure medium conveying line |
| CN113531184A (en) * | 2021-07-02 | 2021-10-22 | 闫正伟 | Valve with self-cleaning function |
| CN119309015A (en) * | 2024-12-18 | 2025-01-14 | 洛阳景圭机械科技有限公司 | A discharge valve |
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| CN105587869A (en) * | 2016-03-01 | 2016-05-18 | 天津自阀流体控制有限公司 | Double-scraper diaphragm butterfly valve |
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| US2202164A (en) * | 1937-10-19 | 1940-05-28 | Novo Patents Inc | Steam stop valve |
| US5417404A (en) * | 1993-10-22 | 1995-05-23 | Varden; Arnold | Geared ball valve |
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| CN111237644A (en) * | 2020-03-27 | 2020-06-05 | 荆门美中美阀门有限公司 | Valve linkage control system on high-pressure medium conveying line |
| CN111237644B (en) * | 2020-03-27 | 2024-04-26 | 荆门美中美阀门有限公司 | Valve linkage control system on high-pressure medium conveying line |
| CN113531184A (en) * | 2021-07-02 | 2021-10-22 | 闫正伟 | Valve with self-cleaning function |
| CN119309015A (en) * | 2024-12-18 | 2025-01-14 | 洛阳景圭机械科技有限公司 | A discharge valve |
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| Publication number | Publication date |
|---|---|
| CN106870812B (en) | 2019-01-18 |
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Effective date of registration: 20181204 Address after: No. 6 Juheng Road, Xinhe Street, South New District, Yancheng City, Jiangsu Province, 224000 Applicant after: YANCHENG HIGH AND MEDIUM PRESSURE VALVE Co.,Ltd. Address before: 325113 5 Jinyuan Road, Yugen village, Yan tou Town, Yongjia, Wenzhou, Zhejiang Applicant before: Zhang Xinfeng |
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Effective date of registration: 20191211 Address after: No.29, Longtan East Road, beilonggang Town, Yandu District, China, Yancheng City, Jiangsu Province, 224000 Patentee after: Yancheng Newman Steel Casting Co.,Ltd. Address before: No. 6 Juheng Road, Xinhe Street, South New District, Yancheng City, Jiangsu Province, 224000 Patentee before: YANCHENG HIGH AND MEDIUM PRESSURE VALVE Co.,Ltd. |
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Effective date of registration: 20210128 Address after: 224002 15, speeding Road, Ting Hu Economic Development Zone, Yancheng City, Jiangsu Patentee after: JIANGSU SHENGYE VALVE Co.,Ltd. Address before: No.29 Longtan East Road, beilonggang Town, Yandu District, Yancheng City, Jiangsu Province 224000 Patentee before: Yancheng Newman Steel Casting Co.,Ltd. |
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Effective date of registration: 20240626 Address after: 224365 Customs Middle Road (East Side of Customs Neighborhood Committee), Haihe Town, Sheyang County, Yancheng City, Jiangsu Province Patentee after: Yancheng Guangxiang Valve Manufacturing Co.,Ltd. Country or region after: China Address before: 224002 15, speeding Road, Ting Hu Economic Development Zone, Yancheng City, Jiangsu Patentee before: JIANGSU SHENGYE VALVE Co.,Ltd. Country or region before: China |