CN112610712A - Fluorine-lined ball valve - Google Patents

Fluorine-lined ball valve Download PDF

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Publication number
CN112610712A
CN112610712A CN202010288154.0A CN202010288154A CN112610712A CN 112610712 A CN112610712 A CN 112610712A CN 202010288154 A CN202010288154 A CN 202010288154A CN 112610712 A CN112610712 A CN 112610712A
Authority
CN
China
Prior art keywords
valve
ball
fluorine
valve body
valve rod
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010288154.0A
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Chinese (zh)
Inventor
杨春雨
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Shengfan Fluid Control Co ltd
Original Assignee
Shanghai Shengfan Fluid Control Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Shengfan Fluid Control Co ltd filed Critical Shanghai Shengfan Fluid Control Co ltd
Priority to CN202010288154.0A priority Critical patent/CN112610712A/en
Publication of CN112610712A publication Critical patent/CN112610712A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • F16K5/0605—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 with particular plug arrangements, e.g. particular shape or built-in 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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
    • F16K27/067—Construction of housing; Use of materials therefor of taps or cocks with spherical plugs
    • 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
    • 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
    • F16K5/0663—Packings
    • F16K5/0694—Spindle sealings
    • 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
    • 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
    • F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
    • F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
    • F16K5/201—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces with the housing or parts of the housing mechanically pressing the seal against the plug

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Taps Or Cocks (AREA)

Abstract

The invention provides a fluorine-lined ball valve which comprises a valve body, a valve cover, a ball body and a valve rod, wherein a connecting layer is arranged on the outer surfaces of the ball body and the valve rod, the connecting layer enables the valve rod and the ball body to be integrally arranged, lining layers are arranged on the inner surfaces of the ball body, the valve body and the valve cover, sealing rings are arranged inside the valve body and the valve cover, an elastic compensation groove is formed in each sealing ring, a packing groove is formed between the valve body and the valve rod, and corrugated pipe packing is arranged in each packing groove. The valve body and the valve cover of the fluorine-lined ball valve are respectively provided with the FEP lining layer, so that the valve has extremely high chemical stability, the valve rod and the ball body are integrally arranged on the valve body, the stability and the safety of the valve in use are improved, and the sealing ring on the valve body is provided with the elastic compensation groove, so that the valve has the characteristics of lasting sealing and self-lubricating.

Description

Fluorine-lined ball valve
Technical Field
The invention relates to the technical field of valves, in particular to a fluorine-lined ball valve.
Background
With the rapid development of science and technology and the continuous improvement of production process and product structure, ball valves have rapidly developed into a main valve class in short 40 years. In China, the ball valve is widely applied to industries such as petroleum refining, long-distance pipelines, chemical industry, papermaking, pharmacy, water conservancy, electric power, municipal administration, steel and the like, and plays a significant role in national economy. It has the action of rotating 90 degrees, the cock body is a sphere, and a circular through hole or a channel passes through the axis of the cock body. The ball valve is mainly used for cutting off, distributing and changing the flow direction of a medium in a pipeline, and can be closed tightly only by rotating 90 degrees and a small rotating moment.
The existing ball valve is complex in structure, particularly a fluorine-lined ball valve, and the structure is complex due to the fact that two valve bodies, a valve seat and a ball body need to be lined with fluorine and assembled, the valve seat is troublesome to install, unreliable in sealing and easy to leak, and moreover, valve rods and the ball body in most of the existing ball valves are designed in a split mode and are not beneficial to operation reliability.
Disclosure of Invention
Aiming at the problems pointed out in the background technology, the invention provides a fluorine-lined ball valve which has the characteristics of compact structure, good sealing performance and zero leakage.
The technical scheme of the invention is realized as follows:
the utility model provides a lining fluorine ball valve, includes valve body, valve gap, spheroid, valve rod, the valve body with adopt bolted connection between the valve gap, the spheroid is located the valve body with between the valve gap, its characterized in that: the lower end of the valve rod is connected with the ball body, the upper end of the valve rod penetrates through the valve body and then extends to the upper part of the valve body and is fixedly connected with the handle, the outer surface of the ball body and the outer surface of the valve rod is provided with a connecting layer, the valve rod and the ball body are integrally arranged through the connecting layer, the inner surfaces of the ball body, the valve body and the valve cover are all provided with lining layers, the ball body is provided with a through hole which is filled with a connecting part used for connecting the connecting layer positioned on the outer surface of the ball body and the lining layer positioned on the inner surface of the ball body, the valve body and the valve cover are internally provided with sealing rings, the sealing rings are symmetrically arranged on the left side and the right side of the ball body and are matched with the ball body in an abutting mode to form sealing, an elastic compensation, the corrugated pipe packing comprises a corrugated pipe packing body and is characterized in that a plurality of inner annular grooves are formed in the inner side wall of the corrugated pipe packing body, a plurality of outer annular grooves are formed in the outer side wall of the corrugated pipe packing body, the inner annular grooves and the outer annular grooves are arranged in a staggered mode in the vertical direction, and a packing pressing sleeve is arranged above the corrugated pipe packing body.
The invention is further configured to: the through holes comprise a first through hole and a second through hole, the first through hole is located at the connecting part of the upper end of the ball body and the valve rod, and the second through hole is located at the lower end of the ball body.
The invention is further configured to: the lower end of the valve rod is provided with a plurality of convex connecting blocks, and the connecting blocks are uniformly distributed along the circumferential direction of the valve rod and are inserted into the connecting layers.
The invention is further configured to: the inner surface of the valve body is provided with a first fixing block, the first fixing block is located below the filling groove, the inner surface of the valve cover is provided with a second fixing block, the second fixing block is located at the connecting position of the valve cover and the valve body, the lining layer is provided with a first fixing groove and a second fixing groove, the first fixing block is fixed in the first fixing groove, and the second fixing block is fixed in the second fixing groove.
The invention is further configured to: the valve body and the valve cover are both provided with connecting flange discs, third fixing grooves are formed in the connecting flange discs, and the second fixing grooves are fixed to the third fixing grooves.
The invention is further configured to: the connecting layer, the lining layer and the connecting part are made of FEP.
In conclusion, the beneficial effects of the invention are as follows: the fluorine-lined ball valve provided by the invention has the characteristics of compact structure, good sealing property and zero leakage, the valve body and the valve cover are respectively provided with the FEP lining layer, so that the valve has extremely high chemical stability, the valve rod and the ball body are integrally arranged on the valve body and the valve cover, the stability and the safety of the valve in use are improved, and the elastic compensation groove is arranged on the sealing ring on the valve body, so that the valve has the characteristics of lasting sealing and self-lubricating.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of the structure of part A of the present invention.
Reference numerals: 1. a valve body; 101. a packing groove; 102. a first fixed block; 2. a valve cover; 201. a fixing ring; 3. a sphere; 301. a first through hole; 302. a second through hole; 4. a valve stem; 401. connecting blocks; 5. a bolt; 6. a handle; 7. a connecting layer; 8. a seal ring; 801. an elastic compensation groove; 9. filling a corrugated pipe; 901. an inner annular groove; 902. an outer annular groove; 10. pressing the sleeve; 11. a backing layer; 111. a second fixed block; 12. connecting a flange plate; 13. a connecting portion.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention is illustrated below with reference to fig. 1-2:
the utility model provides a lining fluorine ball valve, includes valve body 1, valve gap 2, spheroid 3, valve rod 4, valve body 1 with adopt bolt 5 to connect between the valve gap 2, spheroid 3 is located valve body 1 with between the valve gap 2, the lower extreme of valve rod 4 with spheroid 3 is connected, the upper end of valve rod 4 runs through extend to behind the valve body 1 the top of valve body 1 and with handle 6 fixed connection, spheroid 3 with the surface of valve rod 4 is equipped with articulamentum 7, articulamentum 7 makes valve rod 4 with 3 an organic whole settings of spheroid, the lower extreme of valve rod 4 is equipped with a plurality of bellied connecting blocks 401, and a plurality of connecting blocks 401 are followed the circumference evenly distributed of valve rod 4, and insert connect in the articulamentum 7.
The valve body 1 and the valve cover 2 are internally provided with sealing rings 8, the sealing rings 8 are symmetrically arranged on the left side and the right side of the ball body 3 and are abutted and matched with the ball body 3 to form sealing, an elastic compensation groove 801 is arranged on the sealing ring 8, a packing groove 101 is arranged between the valve body 1 and the valve rod 4, a corrugated pipe packing 9 is arranged in the packing groove 101, the inner side wall of the corrugated pipe packing 9 is provided with a plurality of inner annular grooves 901, the outer side wall of the corrugated pipe 9 is provided with a plurality of outer annular grooves 902, the inner annular grooves 901 and the outer annular grooves 902 are arranged in a staggered mode in the vertical direction, and a packing pressing sleeve 10 is arranged above the corrugated pipe packing.
The inner surfaces of the ball body 3, the valve body 1 and the valve cover 2 are all provided with a lining layer 11, the inner surface of the valve body 1 is provided with a first fixing block 102, the first fixing block 102 is positioned below the packing groove 101, the inner surface of the valve cover 2 is provided with a convex fixing ring 201, the fixing ring 201 is positioned at the position of a connecting part 13 of the valve cover 2 and the valve body 1, the lining layer 11 is provided with a first fixing groove (not marked in the figure) and a second fixing groove (not marked in the figure), the first fixing block 102 is fixed in the first fixing groove, the fixing ring is fixedly connected in the second fixing groove, the lining layer 11 is provided with a convex second fixing block 111, the valve body 1 and the valve cover 2 are both provided with a connecting flange 12, the connecting flange 12 is provided with a third fixing groove (not marked in the figure), the second fixing block 111 is fixed in the third fixing groove, the first fixing block 102 is fixed in the first fixing groove, the second fixing block 111 is fixed in the second fixing groove, and the second fixing block is fixed in the third fixing groove to prevent the backing layer 11 from falling off.
The ball body 3 is provided with a through hole, the through hole comprises a first through hole 301 and a second through hole 302, the first through hole 301 is located at the upper end of the ball body 3 and the connecting part 13 of the valve rod 4, and the second through hole 302 is located at the lower end of the ball body 3. First through-hole 301 with all fill in the second through-hole 302 and have connecting portion 13, connecting portion 13 is used for connecting and is located the articulamentum 7 of spheroid 3 surface and being located the lining layer 11 of spheroid 3 internal surface, the material that articulamentum 7, lining layer 11, connecting portion 13 adopted is FEP.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (6)

1. The utility model provides a lining fluorine ball valve, includes valve body (1), valve gap (2), spheroid (3), valve rod (4), valve body (1) with adopt bolt (5) to connect between valve gap (2), spheroid (3) are located valve body (1) with between valve gap (2), its characterized in that: the lower end of the valve rod (4) is connected with the ball body (3), the upper end of the valve rod (4) penetrates through the valve body (1) and then extends to the upper portion of the valve body (1) and is fixedly connected with the handle (6), the ball body (3) and the outer surface of the valve rod (4) are provided with a connecting layer (7), the connecting layer (7) enables the valve rod (4) and the ball body (3) to be integrally arranged, the inner surfaces of the ball body (3), the valve body (1) and the valve cover (2) are provided with lining layers (11), the ball body (3) is provided with a through hole, the through hole is filled with a connecting portion (13), the connecting portion (13) is used for connecting the connecting layer (7) on the outer surface of the ball body (3) and the lining layer (11) on the inner surface of the ball body (3), the valve body (1) and the valve cover (2), the sealing ring (8) is symmetrically arranged on the left side and the right side of the ball body (3) and is in butt fit with the ball body (3) to form sealing, an elastic compensation groove (801) is formed in the sealing ring (8), a packing groove (101) is formed between the valve body (1) and the valve rod (4), corrugated pipe packing (9) is arranged in the packing groove (101), a plurality of inner annular grooves (901) are formed in the inner side wall of the corrugated pipe packing (9), a plurality of outer annular grooves (902) are formed in the outer side wall of the corrugated pipe, the inner annular grooves (901) and the outer annular grooves (902) are arranged in a staggered mode in the vertical direction, and a packing pressing sleeve (10) is arranged above the corrugated pipe packing (9).
2. A fluorine-lined ball valve according to claim 1, wherein: the through hole comprises a first through hole (301) and a second through hole (302), the first through hole (301) is located at the upper end of the sphere (3) and the connecting part (13) of the valve rod (4), and the second through hole (302) is located at the lower end of the sphere (3).
3. A fluorine-lined ball valve according to claim 1 or 2, wherein: the lower end of the valve rod (4) is provided with a plurality of convex connecting blocks (401), and the connecting blocks (401) are uniformly distributed along the circumferential direction of the valve rod (4) and are inserted into the connecting layer (7).
4. A fluorine-lined ball valve according to claim 1, wherein: the inner surface of the valve body (1) is provided with a first fixing block (102), the first fixing block (102) is located below the filling groove (101), the inner surface of the valve cover (2) is provided with a second fixing block (111), the second fixing block (111) is located at a connecting portion (13) of the valve cover (2) and the valve body (1), the lining layer (11) is provided with a first fixing groove and a second fixing groove, the first fixing block (102) is fixed in the first fixing groove, and the second fixing block (111) is fixed in the second fixing groove.
5. A fluorine-lined ball valve according to claim 1, wherein: be equipped with bellied second fixed block (111) on backing layer (11), valve body (1) with all be equipped with flange plate (12) on valve gap (2), be equipped with the third fixed slot on flange plate (12), second fixed block (111) are fixed the third fixed slot.
6. A fluorine-lined ball valve according to claim 1, wherein: the connecting layer (7), the lining layer (11) and the connecting part (13) are made of FEP.
CN202010288154.0A 2020-04-14 2020-04-14 Fluorine-lined ball valve Pending CN112610712A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010288154.0A CN112610712A (en) 2020-04-14 2020-04-14 Fluorine-lined ball valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010288154.0A CN112610712A (en) 2020-04-14 2020-04-14 Fluorine-lined ball valve

Publications (1)

Publication Number Publication Date
CN112610712A true CN112610712A (en) 2021-04-06

Family

ID=75224923

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010288154.0A Pending CN112610712A (en) 2020-04-14 2020-04-14 Fluorine-lined ball valve

Country Status (1)

Country Link
CN (1) CN112610712A (en)

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