CN109340396A - A kind of anticorrosion Fluorine-lined ball valve and its valve body manufacturing process - Google Patents
A kind of anticorrosion Fluorine-lined ball valve and its valve body manufacturing process Download PDFInfo
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- CN109340396A CN109340396A CN201811336987.9A CN201811336987A CN109340396A CN 109340396 A CN109340396 A CN 109340396A CN 201811336987 A CN201811336987 A CN 201811336987A CN 109340396 A CN109340396 A CN 109340396A
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- 238000004519 manufacturing process Methods 0.000 title claims description 12
- 210000004907 gland Anatomy 0.000 claims abstract description 36
- 230000007246 mechanism Effects 0.000 claims abstract description 24
- 239000000945 filler Substances 0.000 claims abstract description 22
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 238000003825 pressing Methods 0.000 claims description 18
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 10
- 238000005553 drilling Methods 0.000 claims description 10
- 238000007514 turning Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 239000000243 solution Substances 0.000 claims description 6
- 239000000356 contaminant Substances 0.000 claims description 5
- 238000001978 electrochemical passivation Methods 0.000 claims description 5
- 238000001746 injection moulding Methods 0.000 claims description 5
- 238000003801 milling Methods 0.000 claims description 5
- 238000010079 rubber tapping Methods 0.000 claims description 5
- 239000000377 silicon dioxide Substances 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 3
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 3
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 239000011651 chromium Substances 0.000 claims description 3
- 229910052731 fluorine Inorganic materials 0.000 claims description 3
- 239000011737 fluorine Substances 0.000 claims description 3
- 238000002161 passivation Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 239000011265 semifinished product Substances 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 3
- 210000003781 tooth socket Anatomy 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 31
- 238000005266 casting Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 238000012856 packing Methods 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 3
- 239000002344 surface layer Substances 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 201000001371 inclusion conjunctivitis Diseases 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 206010044325 trachoma Diseases 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 229920002313 fluoropolymer Polymers 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- NICDRCVJGXLKSF-UHFFFAOYSA-N nitric acid;trihydrochloride Chemical compound Cl.Cl.Cl.O[N+]([O-])=O NICDRCVJGXLKSF-UHFFFAOYSA-N 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920002493 poly(chlorotrifluoroethylene) Polymers 0.000 description 1
- 239000005023 polychlorotrifluoroethylene (PCTFE) polymer Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000837 restrainer Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization 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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/061—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor knee-joint
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P17/00—Metal-working operations, not covered by a single other subclass or another group in this subclass
-
- 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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0647—Spindles or actuating means
-
- 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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
Abstract
The invention proposes a kind of anticorrosion Fluorine-lined ball valves, including valve body, valve rod, the sphere being linked with valve rod and the valve chamber for flow of media, the valve seat that sealing is matched with sphere is equipped in the valve chamber, Fluorine-lined layer is equipped on the inner wall of the valve chamber and on the outer wall of valve rod, the valve rod and sphere are in split type connection, filler is equipped between the valve rod and valve body, the filler is equipped with gland, the gland is equipped with the position-limit mechanism continued to rotate for limiting valve rod when valve fully opens or closes, the position-limit mechanism includes cam, contact, spring and capping, the gland is equipped with the groove for placing cam, the cam is set on valve rod, and it is linked with it, the contact is equipped with several, and opposing cam is circumferentially arranged, it is located at valve rod two sides on the cam and is equipped with arc-shaped limit Convex block, the closure base portion are equipped with the limiting slot being adapted to spacing block set.The configuration of the present invention is simple, is convenient for valve opening and closing at good seal performance.
Description
Technical field
The present invention relates to valve fields, and in particular to a kind of anticorrosion Fluorine-lined ball valve and its valve body manufacturing process.
Background technique
Fluorine-lined ball valve is to the attainable place of valve in-vivo medium institute all using fluorine Lining Technology, and inner lining material is generally adopted
With fluoroplastics such as FEP(F46), PCTFE(F3), FPA, can be adapted for the sulfuric acid of various concentration, hydrochloric acid, hydrofluoric acid, chloroazotic acid and
The pipelines such as various organic acids, strong acid, strong oxidizer and other erosive partis, powder.Traditional Fluorine-lined ball valve includes valve body, lining
Fluorine sphere, valve rod and valve seat, runner is provided in valve body, and valve rod controls the movement of Fluorine-lined sphere and constitutes runner cutting and connection, valve
Seat is installed on runner and cooperates with Fluorine-lined ball seal, and runner inner wall is provided with Fluorine-lined layer.Existing Fluorine-lined ball valve, is passing through valve
When bar drives sphere forward direction, rotates backward, can only often it will appear by the feeling of operator when controlling ball valve open and close
Ball valve over-open or the phenomenon that fit badly, so as to cause spherome surface serious wear, has shortened the service life of sphere.
The problem of existing Fluorine-lined ball valve, is also embodied in sealing problem, specifically focuses between main valve body and auxiliary valve body and valve
Between bar and valve body, once sealing goes wrong, it will result in material leakage, influence the normal use of Fluorine-lined ball valve.
The Fluorine-lined ball valve body poor corrosion resistance produced by existing technique, matt appearance, after long-time use
It can shade, and valve internal is stained with greasy dirt and foreign matter, it is of poor quality.The intracorporal Fluorine-lined layer of valve is shaped by conventional moulded, by operating
Work controls temperature, pressure and time rule of thumb to make, and low so as to cause precision, yield rate is low；The Fluorine-lined of die forming
Layer matter is close unevenly, the close property of matter is low, interior surface layers are coarse；Molding can only be packed into after material chamber is put into sintering furnace several hours and mould
Change, low efficiency, output is low.
Summary of the invention
Based on the above issues, simple, good seal performance that it is an object of that present invention to provide a kind of structures, convenient for valve opening and closing,
The high anticorrosion Fluorine-lined ball valve of valve body quality and its valve body manufacturing process.
In view of the above problems, providing following technical solution: a kind of anticorrosion Fluorine-lined ball valve, including valve body, valve rod and valve
The sphere that bar is linked and the valve chamber for flow of media, the valve chamber is interior to be equipped with the valve seat that sealing is matched with sphere,
Fluorine-lined layer is equipped on the inner wall of the valve chamber and on the outer wall of valve rod, the valve rod and sphere are in split type connection, described
Be equipped with filler between valve rod and valve body, the filler is equipped with gland, the gland be equipped with for fully opening in valve or
Limit the position-limit mechanism that continues to rotate of valve rod when closing, the position-limit mechanism includes cam, contact, spring and capping, described
Gland is equipped with the groove for placing cam, and the cam is set on valve rod, and is linked with it, and the contact is equipped with
Several, and opposing cam is circumferentially arranged, the gland is equipped with the resettlement groove for placing contact and spring, the spring one
End is butted on the inner wall of resettlement groove, and the other end is butted on the end of contact, and the resettlement groove is in be open towards one end of cam, described
The arc groove matched with contact is circumferentially at the outer rim of cam, the contact front end is equipped with the arc matched with arc groove
Structure is located at valve rod two sides on the cam and is equipped with arc-shaped spacing block set, and the closure base portion is equipped with suitable with spacing block set
The limiting slot matched, the capping are sheathed on valve rod.
It in above structure, is rotated by rotation valve rod band moving cam and sphere, contact is squeezed when cam rotates to placement
Sliding in slot, since contactor end is provided with spring, by the elastic force of spring, contact end is affixed with cam always.Work as sphere
When turning to standard-sized sheet or full pass, the arcuate structure of contact front end is adapted to the arc groove on cam, is formed by the elastic force of spring
Self-locking effect.The limiting slot of spacing block set and closure base portion on cam cooperates, when sphere turns to standard-sized sheet or full pass,
Valve rod can not be re-directed towards the side opened or closed and be rotated up.The rotation of valve rod can be limited well by the way that position-limit mechanism is arranged
Angle can be effectively avoided hair over-open or fit badly, so that the opening and closing enhanced convenience of valve.By the way that bullet is arranged
Spring can realize self-locking function well, when the handle on valve is accidentally bumped against by worker, can be avoided handle rotation, from
And the rotation that handle rotated and caused sphere with ovable valve stem is avoided, increase safety.Pass through setting filler and gland energy
Enough increase the leakproofness between valve rod and valve body, to increase reliability of the invention.Bullet can be prevented by the way that capping is arranged
Spring and contact are deviate from, and can prevent dust or aqueous solution from entering, to increase the service life of position-limit mechanism and reliable
Property.Position-limit mechanism, which is located on gland, has saved installation space, keeps its structure more simple, reduces costs.
The present invention is further arranged to, and pressing sleeve is equipped between the gland bottom and filler.
In above structure, the degree of packing between gland and filler can be increased by the way that pressing sleeve is arranged, so as to increase valve
Leakproofness between bar and valve body, prevents medium from revealing, and increases safety of the invention.
The present invention is further arranged to, and the gland includes pressing plate for placing position-limit mechanism and is connected to pressing plate bottom
Portion and it is butted on the briquetting on pressing sleeve.
In above structure, is directly acted on pressing sleeve, can be increased by the way that the extruding force that briquetting generates gland is arranged
The degree of packing of filler increases the tightness between valve rod and filler, to increase the leakproofness between valve rod and valve body, increases
Reliability of the invention is added.
The present invention is further arranged to, and the capping and the junction of valve rod are equipped with axle sleeve, and the axle sleeve is equipped with and valve
The compatible axis hole of bar, the opposite capping of the axle sleeve can be rotated.
In above structure, by be arranged axle sleeve can prevent valve rod and capping between generate friction, drive capping rotation and
Cause position-limit mechanism to damage, and can prevent the gap between capping and valve rod from causing dust or aqueous solution to enter greatly very much, from
And increase the safety and reliability of position-limit mechanism.
The present invention is further arranged to, and the valve chamber inner wall is equipped with dovetail groove compatible with Fluorine-lined layer.The placement
The inner wall of slot is equipped with counterbore compatible with spring.
In above structure, enable to flange face lining will not alice by the way that dovetail groove is arranged.Can anti-shrink, collapse,
And can be used in vacuum occasion, to increase stability of the invention, reliability and service life.
The present invention is further arranged to, and the gland is equipped with bolt hole, position corresponding with bolt hole in the capping
It sets place and is equipped with mounting hole, and be connected by bolt with bolt hole.
Using the above structure, capping can be firmly fixed on gland, and convenient for the dismounting of capping.
The present invention is further arranged to, and the circumferential direction of the bolt hole is equipped with positioning column, and the closure base portion is equipped with
Location hole compatible with positioning column.
Using the above structure, capping can be easily installed, and can prevent capping from rotating, thus increase it is of the invention can
By property.
The present invention is further arranged to, and the valve body includes main valve body and auxiliary valve body, and the joint is equipped with engaging tooth, institute
It states the Fluorine-lined layer in auxiliary valve body and is equipped with the tooth socket for matching sealing with engaging tooth.
Using the above structure, the sealing area between the Fluorine-lined layer in main valve body and auxiliary valve body can be increased, so as to
Leakproofness and wearability between the two is increased, reliability of the invention is increased.
The present invention is further arranged to, and Fluorine-lined layer is in the radial direction all provided with Fluorine-lined layer in auxiliary valve body in the main valve body
There is attracting magnet.
Using the above structure, the leakproofness of Fluorine-lined layer in main valve body and auxiliary valve body can be increased, and wearability can be increased,
It prevents from generating gap between Fluorine-lined layer, to increase reliability and leakproofness of the invention.
Valve body manufacturing process includes the following steps:
1) it is cast by mold using silica solution, casts out valve body blank；
2) turning, drilling and tapping are carried out to blank using CNC milling machine, lathe and drilling machine；
3) blank processed is subjected to electrobrightening, its surface is made to form one layer of chromium-enriched layer, placed into passivation liquid pool and impregnate,
It is passivated processing；
4) by electrolytic passivation, treated that blank is put into service sink, is disposed its surface and oil contaminant, foreign matter by ultrasonic wave；
5) liner PFA technique is carried out to cleaned blank by way of injection molding；
6) blank after being molded lining becomes semi-finished product, tests to it, puts after qualified to area to be assembled.
Using the above structure, it can be avoided by silica solution casting and trachoma occur, to increase yield rate, and pass through silicon
Colloidal sol casting, the appearance and dimensional accuracy of blank are more preferable.Using CNC milling machine, lathe and drilling machine to blank carry out turning,
Drilling and tapping, can be improved production efficiency and dimensional accuracy quality are more stable.By the way that blank is carried out at electrolytic passivation
Reason can make its surface form passivating film, promote lustrous surface, corrosion resistance is more preferable, and the service life is longer.Pass through ultrasonic wave pair
Valve body, which carries out cleaning, can be effectively removed surface and oil contaminant and foreign matter, improve product quality.The Fluorine-lined layer of valve inner is logical
Injection molding is crossed, compares conventional moulded technique, Fluorine-lined layer matter of the invention is close uniformly, the close property of matter is high, interior surface layers are smooth, accurate
Property it is high, production efficiency is fast, quality is stable and long service life.
Beneficial effects of the present invention: comparing existing Fluorine-lined ball valve, and the configuration of the present invention is simple, is convenient for valve at good seal performance
Door opening and closing, valve body quality are high.The rotational angle of valve rod can be limited well by the way that position-limit mechanism is arranged, and can be effectively avoided
Hair over-open fits badly, so that the opening and closing enhanced convenience of valve.It can be realized well certainly by the way that spring is arranged
Lock function can be avoided handle rotation when the handle on valve is accidentally bumped against by worker, drive valve so as to avoid handle
Bar rotates and causes the rotation of sphere, increases safety.Position-limit mechanism, which is located on gland, has saved installation space, makes its structure
It is more simple, it reduces costs.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the overlooking structure diagram of position-limit mechanism in the present invention.
Fig. 3 is the structural schematic diagram of valve rod in the present invention.
Fig. 4 is the structural schematic diagram covered in the present invention.
Fig. 5 is the schematic enlarged-scale view in Fig. 1 at A.
Figure label meaning: 1- valve body；11- valve chamber；12- filler；13- main valve body；14- auxiliary valve body；2- valve rod；3- ball
Body；31- valve seat；4- Fluorine-lined layer；41- engaging tooth；42- magnet；5- gland；51- pressing sleeve；52- pressing plate；53- briquetting；6- position restrainer
Structure；61- cam；611- arc groove；612- spacing block set；62- contact；63- spring；64- capping；641- limiting slot；642- peace
Fill hole；643- location hole；7- axle sleeve；71- axis hole.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Implement below
Example is not intended to limit the scope of the invention for illustrating the present invention.
A kind of anticorrosion Fluorine-lined ball valve as shown in Figures 1 to 5 is linked including valve body 1, valve rod 2 and valve rod 2
Sphere 3 and valve chamber 11 for flow of media are equipped with the valve seat 31 that sealing is matched with sphere 3 in the valve chamber 11, described
Fluorine-lined layer 4 is equipped on the inner wall of valve chamber 11 and on the outer wall of valve rod 2, the valve rod 2 is in split type connection, institute with sphere 3
It states and is equipped with filler 12 between valve rod 2 and valve body 1, the filler 12 is equipped with gland 5, and the gland 5 is equipped in valve
Limit the position-limit mechanism 6 that continues to rotate of valve rod 2 when fully opening or closing, the position-limit mechanism 6 include cam 61, contact 62,
Spring 63 and capping 64, the gland 5 are equipped with the groove for placing cam 61, and the cam 61 is set on valve rod 2,
And be linked with it, the contact 62 is equipped with several, and the circumferential setting of opposing cam 61, the gland 5 are equipped with and are used for
The resettlement groove of contact 62 and spring 63 is placed, described 63 one end of spring is butted on the inner wall of resettlement groove, and the other end is butted on contact 62
End, the resettlement groove is circumferentially with and 62 phase of contact towards one end of cam 61 in opening, at the outer rim of the cam 61
The arc groove 611 of cooperation, 62 front end of contact are equipped with the arcuate structure matched with arc groove 611, and the cam 61 is upper
It is equipped with arc-shaped spacing block set 612 in 2 two sides of valve rod, 64 bottoms of the capping are equipped with the limit being adapted to spacing block set 612
Slot 641, the capping 64 are sheathed on valve rod 2.
In above structure, by replacing valve rod 2 and the split type setting of sphere 3 sphere 3 and valve rod 2 being more convenient, quick.
It is rotated by rotation valve rod 2 with moving cam 61 and sphere 3, contact 62 is squeezed when cam 61 rotates and is slided into resettlement groove, by
62 end of contact is provided with spring 63, by the elastic force of spring 63,62 end of contact is affixed with cam 61 always.When sphere 3
When turning to standard-sized sheet or full pass, the arcuate structure of 62 front end of contact is adapted to the arc groove 611 on cam 61, passes through spring 63
Elastic force forms self-locking effect.The limiting slot 641 of 64 bottoms of spacing block set 612 and capping on cam 61 cooperates, when sphere 3
When turning to standard-sized sheet or full pass, valve rod 2 can not be re-directed towards the side opened or closed and be rotated up.By the way that 6 energy of position-limit mechanism is arranged
Enough rotational angles for limiting valve rod 2 well, can be effectively avoided hair over-open or fit badly, so that valve opens
Close enhanced convenience.Self-locking function can be realized well by the way that spring 63 is arranged, when the handle on valve is accidentally by worker
When bumping against, it can be avoided handle rotation, rotate and cause the rotation of sphere 3 with ovable valve stem 2 so as to avoid handle, increase peace
Quan Xing.The leakproofness between valve rod 2 and valve body 1 can be increased by setting filler 12 and gland 5, to increase the present invention
Reliability.It can prevent spring 63 and contact 62 from deviating from by setting capping 64, and can prevent dust or aqueous solution from entering,
To increase the service life and reliability of position-limit mechanism 6.Position-limit mechanism 6 is located on gland 5 and has saved installation space, makes
Its structure is more simple, reduces costs.
In the present embodiment, the spacing block set 612 is arc-shaped, and limiting slot 641 is also arc-shaped setting, the valve rod
2 90 degree of rotation realization valves fully opening or closing.
Using the above structure, most of valves are all that 90 degree of rotation is fully opened or closed, therefore this spacing block set
612, the set-up mode of limiting slot 641 can satisfy the needs of most ball valve, applied widely.
In the present embodiment, pressing sleeve 51 is equipped between 5 bottom of gland and filler 12.
In above structure, the degree of packing between gland 5 and filler 12 can be increased by the way that pressing sleeve 51 is arranged, so as to increase
Add the leakproofness between valve rod 2 and valve body 1, prevent medium from revealing, increases safety of the invention.
In the present embodiment, the gland 5 includes pressing plate 52 for placing position-limit mechanism 6 and is connected to 52 bottom of pressing plate
And it is butted on the briquetting 53 on pressing sleeve 51.
In above structure, directly acted on pressing sleeve 51 by the way that the extruding force that briquetting 53 generates gland 5 is arranged, it can
The degree of packing for increasing filler 12, increases the tightness between valve rod 2 and filler 12, to increase between valve rod 2 and valve body 1
Leakproofness, increase reliability of the invention.
In the present embodiment, the junction of the capping 64 and valve rod 2 is equipped with axle sleeve 7, and the axle sleeve 7 is equipped with and valve rod 2
Compatible axis hole 71, the opposite capping 64 of the axle sleeve 7 can be rotated.
In above structure, it can prevent from generating friction between valve rod 2 and capping 64 by the way that axle sleeve 7 is arranged, drive capping 64
It rotates and position-limit mechanism 6 is caused to damage, and can prevent the gap between capping 64 and valve rod 2 from leading to dust or water-soluble greatly very much
Liquid enters, to increase the safety and reliability of position-limit mechanism 6.
In the present embodiment, 11 inner wall of valve chamber is equipped with dovetail groove compatible with Fluorine-lined layer 4.
In above structure, enable to flange face lining will not alice by the way that dovetail groove is arranged.Can anti-shrink, collapse,
And can be used in vacuum occasion, to increase stability of the invention, reliability and service life.
In the present embodiment, the inner wall of the resettlement groove is equipped with counterbore compatible with spring 63.
In above structure, the fastness of spring 63 can be increased by the way that counterbore is arranged, to improve the stabilization of spring 63
Property.
In the present embodiment, the gland 5 is equipped with bolt hole, sets at position corresponding with bolt hole in the capping 64
There is mounting hole 642, and is connected by bolt with bolt hole.
Using the above structure, capping 64 can be firmly fixed on gland 5, and convenient for the dismounting of capping 64.
In the present embodiment, the circumferential direction of the bolt hole is equipped with positioning column, and 64 bottoms of the capping are equipped with and positioning
The compatible location hole 643 of column.
Using the above structure, it can be easily installed capping 64, and 64 rotation of capping can be prevented, to increase the present invention
Reliability.
In the present embodiment, the valve body 1 includes main valve body 13 and auxiliary valve body 14, and the joint is equipped with engaging tooth 41, institute
It states the Fluorine-lined layer 4 in auxiliary valve body 14 and is equipped with the tooth socket for matching sealing with engaging tooth 41.
Using the above structure, the sealing area between the Fluorine-lined layer 4 in main valve body 13 and auxiliary valve body 14 can be increased, thus
Leakproofness and wearability between the two can be increased, reliability of the invention is increased.
In the present embodiment, Fluorine-lined layer 4 is equipped in the radial direction with Fluorine-lined layer 4 in auxiliary valve body 14 in the main valve body 13
Attracting magnet 42.
Using the above structure, the leakproofness of Fluorine-lined layer 4 in main valve body 13 and auxiliary valve body 14 can be increased, and can be increased resistance to
Mill property, prevents from generating gap between Fluorine-lined layer 4, to increase reliability and leakproofness of the invention.
In the present embodiment, the contact 62 set there are four and its angle in 90 degree, valve rod 2 can be controlled and rotate 90 degree, reality
The standard-sized sheet of existing valve or full pass, operate convenient for workpeople.
In the present embodiment, the thickness of Fluorine-lined layer 4 uses 4mm-5mm.
Using the above structure, the permeability, rotproofness, wearability of Fluorine-lined layer 4 be can be improved, to extend Fluorine-lined layer 4
Service life and improve reliability of the invention.
In the present embodiment, the sphere 3 uses PTFE material.
In above structure, PTFE ratio PFA and F46 wearability are more preferable, and the service life is longer.
In the present embodiment, sphere 3 is equipped with slot, and valve rod 2 is plugged in formation valve rod 2 and the linkage of sphere 3 in slot and matches
It closes.
Using the above structure, valve rod 2 and 3 split settings of sphere, can be convenient the installation to sphere 3, valve rod 2, valve in this way
Volume-diminished needed for chamber 11；And can be very good to guarantee the concentricity of valve rod 2 and sphere 3, it is not in valve over-open
Or the case where fitting badly.
In the present embodiment, the filler 12 uses 12 structure of PTFE V-type filler, will not in the case where hot and cold alternation
It leaks.
Valve body manufacturing process includes the following steps:
1) it is cast by mold using silica solution, casts out valve body blank；
2) turning, drilling and tapping are carried out to blank using CNC milling machine, lathe and drilling machine；
3) blank processed is subjected to electrobrightening, its surface is made to form one layer of chromium-enriched layer, placed into passivation liquid pool and impregnate,
It is passivated processing；
4) by electrolytic passivation, treated that blank is put into service sink, is disposed its surface and oil contaminant, foreign matter by ultrasonic wave；
5) liner PFA technique is carried out to cleaned blank by way of injection molding；
6) blank after being molded lining becomes semi-finished product, tests to it, puts after qualified to area to be assembled.
Using the above structure, it can be avoided by silica solution casting and trachoma occur, to increase yield rate, and pass through silicon
Colloidal sol casting, the appearance and dimensional accuracy of blank are more preferable.Using CNC milling machine, lathe and drilling machine to blank carry out turning,
Drilling and tapping, can be improved production efficiency and dimensional accuracy quality are more stable.By the way that blank is carried out at electrolytic passivation
Reason can make its surface form passivating film, promote lustrous surface, corrosion resistance is more preferable, and the service life is longer.Pass through ultrasonic wave pair
Valve body, which carries out cleaning, can be effectively removed surface and oil contaminant and foreign matter, improve product quality.The Fluorine-lined layer of valve inner is logical
Injection molding is crossed, compares conventional moulded technique, Fluorine-lined layer matter of the invention is close uniformly, the close property of matter is high, interior surface layers are smooth, accurate
Property it is high, production efficiency is fast, quality is stable and long service life.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvements and modifications can also be made, above-mentioned hypothesis these
Improvement and modification also should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of anticorrosion Fluorine-lined ball valve, including valve body, valve rod, the sphere being linked with valve rod and for flow of media
Valve chamber, is equipped with the valve seat that sealing is matched with sphere in the valve chamber, on the inner wall of the valve chamber and on the outer wall of valve rod
Equipped with Fluorine-lined layer, it is characterised in that: the valve rod and sphere are equipped with filler in split type connection between the valve rod and valve body,
The filler is equipped with gland, and the gland is equipped with for limiting what valve rod continued to rotate when valve fully opens or closes
Position-limit mechanism, the position-limit mechanism include cam, contact, spring and capping, and the gland is equipped with for placing cam
Groove, the cam are set on valve rod, and are linked with it, and the contact is equipped with several, and opposing cam is circumferentially set
It sets, the gland is equipped with the resettlement groove for placing contact and spring, and the spring one end is butted on the inner wall of resettlement groove, separately
One end is butted on the end of contact, the resettlement groove towards one end of cam in opening, be circumferentially at the outer rim of the cam with
The arc groove that contact matches, the contact front end are equipped with the arcuate structure matched with cam, are located at valve rod on the cam
Two sides are equipped with arc-shaped spacing block set, and the closure base portion is equipped with the limiting slot being adapted to spacing block set, and the capping is arranged
In on valve rod.
2. a kind of anticorrosion Fluorine-lined ball valve according to claim 1, it is characterised in that: between the gland bottom and filler
Equipped with pressing sleeve.
3. a kind of anticorrosion Fluorine-lined ball valve according to claim 2, it is characterised in that: the gland includes for placing limit
Position mechanism pressing plate and be connected to pressing plate bottom and be butted on the briquetting on pressing sleeve.
4. a kind of anticorrosion Fluorine-lined ball valve according to claim 1, it is characterised in that: the junction of the capping and valve rod
Equipped with axle sleeve, the axle sleeve is equipped with axis hole compatible with valve rod, and the opposite capping of the axle sleeve can be rotated.
5. a kind of anticorrosion Fluorine-lined ball valve according to claim 1, it is characterised in that: the valve chamber inner wall is equipped with and lining
The compatible dovetail groove of fluorine layer.
6. a kind of anticorrosion Fluorine-lined ball valve according to claim 1, it is characterised in that: the gland is equipped with bolt hole,
Mounting hole is equipped in the capping at position corresponding with bolt hole, and is connected by bolt with bolt hole.
7. a kind of anticorrosion Fluorine-lined ball valve according to claim 6, it is characterised in that: in the circumferential direction of the bolt hole
Equipped with positioning column, the closure base portion is equipped with location hole compatible with positioning column.
8. a kind of anticorrosion Fluorine-lined ball valve according to claim 1, it is characterised in that: the valve body includes main valve body and pair
Valve body, the joint are equipped with engaging tooth, and the Fluorine-lined layer in the auxiliary valve body is equipped with the tooth socket that sealing is matched with engaging tooth.
9. a kind of anticorrosion Fluorine-lined ball valve according to claim 1, it is characterised in that: Fluorine-lined layer and pair in the main valve body
Fluorine-lined layer is equipped with attracting magnet in the radial direction in valve body.
10. a kind of valve body manufacturing process of any one anticorrosion Fluorine-lined ball valve as described in claim 1 to 9, feature exist
In: the valve body manufacturing process includes the following steps:
1) it is cast by mold using silica solution, casts out valve body blank；
2) turning, drilling and tapping are carried out to blank using CNC milling machine, lathe and drilling machine；
3) blank processed is subjected to electrobrightening, its surface is made to form one layer of chromium-enriched layer, placed into passivation liquid pool and impregnate,
It is passivated processing；
4) by electrolytic passivation, treated that blank is put into service sink, is disposed its surface and oil contaminant, foreign matter by ultrasonic wave；
5) liner PFA technique is carried out to cleaned blank by way of injection molding；
6) blank after being molded lining becomes semi-finished product, tests to it, puts after qualified to area to be assembled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811336987.9A CN109340396A (en) | 2018-11-12 | 2018-11-12 | A kind of anticorrosion Fluorine-lined ball valve and its valve body manufacturing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811336987.9A CN109340396A (en) | 2018-11-12 | 2018-11-12 | A kind of anticorrosion Fluorine-lined ball valve and its valve body manufacturing process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109340396A true CN109340396A (en) | 2019-02-15 |
Family
ID=65314516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811336987.9A Pending CN109340396A (en) | 2018-11-12 | 2018-11-12 | A kind of anticorrosion Fluorine-lined ball valve and its valve body manufacturing process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109340396A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112145736A (en) * | 2020-09-21 | 2020-12-29 | 耐氟隆集团有限公司 | Full-bore high-performance fluorine-lined ball valve |
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|---|---|---|---|---|
| US3157190A (en) * | 1960-05-26 | 1964-11-17 | Cameron Iron Works Inc | Ball valve |
| US20050104026A1 (en) * | 2002-02-22 | 2005-05-19 | Manish Tulaskar | Ball valve with a single piece ball-stem and an integrated actuator mounting flange |
| CN205978582U (en) * | 2016-08-30 | 2017-02-22 | 浙江佰通防腐设备有限公司 | Lining fluorine ball valve |
| CN206860930U (en) * | 2017-05-27 | 2018-01-09 | 浙江永联阀门有限公司 | A kind of Fluorine-lined ball valve |
| CN108775414A (en) * | 2018-06-16 | 2018-11-09 | 张新丰 | A kind of antifriction ball valve |
| CN209164641U (en) * | 2018-11-12 | 2019-07-26 | 浙江佰通防腐设备有限公司 | A kind of anticorrosion Fluorine-lined ball valve |
-
2018
- 2018-11-12 CN CN201811336987.9A patent/CN109340396A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3157190A (en) * | 1960-05-26 | 1964-11-17 | Cameron Iron Works Inc | Ball valve |
| US20050104026A1 (en) * | 2002-02-22 | 2005-05-19 | Manish Tulaskar | Ball valve with a single piece ball-stem and an integrated actuator mounting flange |
| CN205978582U (en) * | 2016-08-30 | 2017-02-22 | 浙江佰通防腐设备有限公司 | Lining fluorine ball valve |
| CN206860930U (en) * | 2017-05-27 | 2018-01-09 | 浙江永联阀门有限公司 | A kind of Fluorine-lined ball valve |
| CN108775414A (en) * | 2018-06-16 | 2018-11-09 | 张新丰 | A kind of antifriction ball valve |
| CN209164641U (en) * | 2018-11-12 | 2019-07-26 | 浙江佰通防腐设备有限公司 | A kind of anticorrosion Fluorine-lined ball valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112145736A (en) * | 2020-09-21 | 2020-12-29 | 耐氟隆集团有限公司 | Full-bore high-performance fluorine-lined ball valve |
| CN112145736B (en) * | 2020-09-21 | 2022-07-01 | 耐氟隆集团有限公司 | Full-bore high-performance fluorine-lined ball valve |
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