CN212318840U

CN212318840U - Angular travel electric actuator for ball valve

Info

Publication number: CN212318840U
Application number: CN202020858408.3U
Authority: CN
Inventors: 袁珍; 苑晓蕾
Original assignee: Tianjin Jinbai Control Instrument Automation Technology Co ltd
Current assignee: Tianjin Jinbai Control Instrument Automation Technology Co ltd
Priority date: 2020-05-21
Filing date: 2020-05-21
Publication date: 2021-01-08
Anticipated expiration: 2030-05-21

Abstract

The utility model discloses an angle stroke electric actuator for ball valve belongs to ball valve technical field, including angle stroke electric actuator, angle stroke electric actuator is located the top of disk seat, it is connected with the mount pad to go up disk seat bottom interference, draw-in groove b has been seted up to mount pad bottom both sides, can dismantle in the draw-in groove b and be connected with spring c, spring c supports the top that leans on at the sealing washer in the bottom, sealing washer right side gap junction has the spheroid, the sealing washer left side bonds there is the valve body, the mounting groove has been seted up to the valve body inboard, can dismantle in the mounting groove and be connected with spring b, spring b gap junction has the sealing washer, the disk seat has down through screw a bolt in the valve body bottom. The sealing ring compresses the ball body under the action of the spring a, the spring b and the spring c, so that water leakage at the ball body can be avoided; the corrosion-resistant layer in the valve body is matched with the rubber, so that the corrosion resistance of the valve body can be improved, and the overall service life of the ball valve is prolonged.

Description

Angular travel electric actuator for ball valve

Technical Field

The utility model relates to a ball valve technical field especially relates to an angle stroke electric actuator for ball valve.

Background

A ball valve (which in the marine and marine fields is intended to be a stop valve), defined in standard GB/T21465-2008 "valve nomenclature" as a valve in which the closure member (ball) is driven by a valve stem and rotates about the axis of the ball valve. The hard seal V-shaped ball valve can also be used for regulating and controlling fluid, wherein a V-shaped ball core of the hard seal V-shaped ball valve and a metal valve seat of the build-up welding hard alloy have strong shearing force, and the hard seal V-shaped ball valve is particularly suitable for media containing fibers, tiny solid particles and the like. The multi-way ball valve can flexibly control the confluence, the diversion and the switching of the flow direction of the medium on the pipeline, and can close any channel to connect the other two channels. The valve of this type should be generally installed horizontally in the pipeline. Ball valve classification, including pneumatic ball valve, electric ball valve and manual ball valve.

The patent No. CN 203560486U discloses an electronic electric O-shaped cut-off ball valve which has the characteristics of tight closing, large flow capacity, zero leakage and the like, is particularly suitable for occasions with high viscosity, fiber-containing and granular media, and can be widely applied to the control of the media such as gas, liquid, steam and the like in the industrial automatic control fields such as petroleum, metallurgy, light industry and the like.

The prior art ball valves have the following disadvantages: 1. after the ball valve is used for a long time, the ball valve is not tightly contacted with a sealing ring in the ball valve, and part of liquid is exposed after the ball valve is tightly closed, so that the use is inconvenient; 2. the liquid flowing through the ball valve is corrosive and is often contacted with the valve body to be corroded, so that the service life of the whole ball valve is short; therefore, an angular stroke electric actuator for the ball valve is provided.

SUMMERY OF THE UTILITY MODEL

The utility model provides an angular travel electric actuator for ball valves, wherein a sealing ring compresses a ball body under the action of a spring a, a spring b and a spring c, and water leakage at the ball body can be avoided; the corrosion-resistant layer in the valve body is matched with the rubber, so that the corrosion resistance of the valve body can be improved, and the overall service life of the ball valve is prolonged.

The utility model provides a specific technical scheme as follows:

the utility model provides an angular travel electric actuator for a ball valve, which comprises an angular travel electric actuator, the angular travel electric actuator is positioned above the upper valve seat, the bottom end of the upper valve seat is connected with a mounting seat in an interference manner, two sides of the bottom end of the mounting seat are provided with clamping grooves b, springs c are detachably connected in the clamping grooves b, the bottom end of the spring c is abutted against the top end of the sealing ring, the right side of the sealing ring is in clearance connection with a ball body, the left side of the sealing ring is bonded with a valve body, the inner side of the valve body is provided with an installation groove, a spring b is detachably connected in the installation groove, the gap of the spring b is connected with a sealing ring, the bottom of the valve body is bolted with a lower valve seat through a screw a, the valve body is characterized in that clamping grooves a are formed in two sides of the top end of the lower valve seat, a spring a is detachably connected to each clamping groove a, a corrosion-resistant layer is sprayed on the inner surface of the valve body, and rubber is bonded to the surface of the corrosion-resistant layer.

Optionally, the mounting seat is bolted with a valve body through a screw b, and a valve rod is connected to the inner gap of the upper valve seat.

Optionally, the bottom end of the valve rod is fixedly connected with a ball body, and an arc-shaped groove is formed in the inner surface of the sealing ring.

Optionally, the valve body is provided with screw holes, and the number of the screw holes is eight.

The utility model has the advantages as follows:

the embodiment of the utility model provides an angle stroke electric actuator for ball valve:

1. the sealing ring compresses the ball body under the action of the spring a, the spring b and the spring c, so that water leakage at the ball body can be avoided; the sealing washer bonds at the valve body internal surface, sealing washer and spheroid surface contact behind the ball valve integral erection, the draw-in groove b in-connection that the mount pad bottom was seted up has spring c, the spring c bottom is supported and is leaned on the sealing washer top, the mounting groove in-connection that the valve body inboard was seted up has spring b, the spring b inboard is supported and is leaned on the sealing washer outside, the spring a that draw-in groove an and draw-in groove an in-connection were seted up to disk seat bottom both sides down supports and leans on at the sealing washer bottom, spring a, spring b and spring c are located the sealing washer bottom respectively, outside and top and spring are compression state, the spring wants the reconversion to give sealing washer one upwards, inside and decurrent pressure make the sealing.

2. The corrosion resistance of the valve body can be improved by matching the corrosion-resistant layer in the valve body with rubber, and the overall service life of the ball valve is prolonged; the corrosion-resistant layer is sprayed on the inner surface of the valve body, the corrosion-resistant layer is made of polytetrafluoroethylene, the polytetrafluoroethylene has excellent corrosion resistance, the polytetrafluoroethylene is hardly corroded by drugs and can bear the effects of all strong acids, strong oxidants, reducing agents and various organic solvents except molten alkali metal, fluorinated media and sodium hydroxide with the temperature higher than 300 ℃, the valve body can be protected from any kind of chemical corrosion, rubber is bonded on the surface of the corrosion-resistant layer, the rubber is made of chloroprene rubber, the chloroprene rubber has good physical and mechanical properties, oil resistance, acid and alkali resistance and chemical reagent resistance, the valve body can be protected by contacting with liquid flowing through the valve body, the corrosion-resistant layer and the rubber in the valve body are matched to improve the overall corrosion resistance of the valve body, and the service life of the ball valve is prolonged.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments 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 it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic overall structure diagram of an angular travel electric actuator for a ball valve according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a valve body of an angular travel electric actuator for a ball valve according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of the sealing ring fastening of the angular travel electric actuator for the ball valve according to the embodiment of the present invention.

In the figure: 1. a valve body; 2. a mounting seat; 3. an angular travel electric actuator; 4. an upper valve seat; 5. a valve stem; 6. a seal ring; 7. a sphere; 8. mounting grooves; 9. a lower valve seat; 10. a screw a; 11. a clamping groove a; 12. an arc-shaped slot; 13. a spring a; 14. a spring b; 15. a screw hole; 16. a corrosion-resistant layer; 17. rubber; 18. a screw b; 19. a clamping groove b; 20. and a spring c.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

An angular stroke electric actuator for a ball valve according to an embodiment of the present invention will be described in detail with reference to fig. 1 to 3.

Referring to fig. 1 to 3, an angular travel electric actuator for a ball valve provided in an embodiment of the present invention includes an angular travel electric actuator 3, the angular travel electric actuator 3 is located above an upper valve seat 4, the bottom end of the upper valve seat 4 is connected to an installation seat 2 in an interference manner, two sides of the bottom end of the installation seat 2 are provided with a clamping groove b19, a spring c20 is detachably connected to the clamping groove b19, the bottom end of the spring c20 abuts against the top end of a sealing ring 6, a ball 7 is connected to a right side gap of the sealing ring 6, a valve body 1 is bonded to the left side of the sealing ring 6, an installation groove 8 is formed inside the valve body 1, a spring b14 is detachably connected to the installation groove 8, a sealing ring 6 is connected to a spring b14 gap, the bottom of the valve body 1 is bolted to a lower valve seat 9 through a screw a10, two, the clamping groove a11 is detachably connected with a spring a13, the inner surface of the valve body 1 is sprayed with a corrosion-resistant layer 16, and the surface of the corrosion-resistant layer 16 is bonded with rubber 17.

Illustratively, the surface of the sealing ring 6 is bonded on the inner side of the valve body 1, the sealing ring 6 extends outwards to form a convex block, the inner side of the valve body 1 is provided with a mounting groove 8, the convex block is bonded on the inner surface of the mounting groove 8 for fixation, the inner surface of the valve body 1 is sprayed with an anti-corrosion layer 16, the anti-corrosion layer 16 is polytetrafluoroethylene, the polytetrafluoroethylene is a high molecular compound formed by polymerizing tetrafluoroethylene, the rubber 17 is chloroprene rubber, and the chloroprene rubber is synthetic rubber produced by alpha-polymerization of chloroprene (namely 2-chloro-1, 3-butadiene) serving as a main raw material.

Referring to fig. 1, the mounting seat 2 is bolted to the valve body 1 through a screw b18, and the upper valve seat 4 is connected with a valve rod 5 in a clearance manner.

Illustratively, the screw b18 rotates inward to connect the mounting seat 2 with the valve body 1, the valve rod 5 is fixed in the upper valve seat 4, and the valve rod 5 rotates in the upper valve seat 4.

Referring to fig. 1, a ball 7 is fixedly connected to the bottom end of the valve rod 5, and an arc-shaped groove 12 is formed in the inner surface of the sealing ring 6.

Illustratively, the valve rod 5 rotates to drive the ball body 7 to rotate, the ball body 7 rotates to enable the through hole on the ball body 7 to be the same as the valve body 1, the arc-shaped groove 12 is attached to the surface of the ball body 7, and the shape of the arc-shaped groove 12 is the same as that of the surface of the ball body 7.

Referring to fig. 2, the valve body 1 is provided with eight screw holes 15, and the number of the screw holes 15 is eight.

Illustratively, bolts are inserted through the threaded holes 15 to connect the valve body 1 to external pipes.

When the ball valve is used, an external power supply supplies power, the electric actuating mechanism 1 at the top end of the ball valve drives the valve rod 5 to rotate after being electrified, the valve rod 5 rotates to drive the ball body 7 at the bottom end to rotate, so that a through hole in the ball body 7 is the same as that in the valve body 1 and liquid passes through, the sealing ring 6 is bonded on the inner surface of the valve body 1, the sealing ring 6 is in surface contact with the ball body 7 after the ball valve is integrally installed, the spring c20 is connected in the clamping groove b19 formed at the bottom end of the installing seat 2, the bottom end of the spring c20 is abutted against the top end of the sealing ring 6, the spring b14 is connected in the installing groove 8 formed in the inner side of the valve body 1, the inner side of the spring b14 is abutted against the outer side of the sealing ring 6, the clamping grooves a11 and the spring a13 connected in the clamping grooves a11 are abutted against the, The inward and downward pressure makes the seal ring 6 fasten on the surface of spheroid 7, can avoid sealing ring 6 and spheroid 7 after using for a long time connect not tightly, the ball valve is whole to leak water, the internal surface of valve block 1 is sprayed with the corrosion-resistant layer 16, the corrosion-resistant layer 16 material is polytetrafluoroethylene, polytetrafluoroethylene has good corrosion resistance, polytetrafluoroethylene is hardly corroded by the medicament, can bear the action of all strong acids except molten alkali metal, fluoridized medium and sodium hydroxide higher than 300 ℃, can protect the valve block 1 from any kind of chemical corrosion, the corrosion-resistant layer 16 surface bonds there is rubber 17, the material of rubber 17 is chloroprene rubber, the chloroprene rubber has good physical mechanical properties, the oil resistance, acid and alkali resistance and chemical resistance, can contact with the liquid flowing through the valve block 1 to protect the valve block 1 first, the corrosion-resistant layer 16 in the valve body 1 is matched with the rubber 17, so that the overall corrosion-resistant capability of the valve body 1 can be improved, and the service life of the ball valve is prolonged.

The utility model relates to an angular travel electric actuator for ball valve, which comprises a valve body 1; 2. a mounting seat; 3. an angular travel electric actuator; 4. an upper valve seat; 5. a valve stem; 6. a seal ring; 7. a sphere; 8. mounting grooves; 9. a lower valve seat; 10. a screw a; 11. a clamping groove a; 12. an arc-shaped slot; 13. A spring a; 14. a spring b; 15. a screw hole; 16. a corrosion-resistant layer; 17. rubber; 18. a screw b; 19. A clamping groove b; 20. the spring c, the components are all universal standard parts or components known to those skilled in the art, and the structure and principle thereof are known to those skilled in the art through technical manuals or obtained through routine experiments.

Claims

1. The angle stroke electric actuator for the ball valve comprises an angle stroke electric actuator (3) and is characterized in that the angle stroke electric actuator (3) is located above an upper valve seat (4), the bottom end of the upper valve seat (4) is in interference connection with an installation seat (2), clamping grooves b (19) are formed in two sides of the bottom end of the installation seat (2), a spring c (20) is detachably connected in each clamping groove b (19), the bottom end of the spring c (20) is abutted against the top end of a sealing ring (6), a ball body (7) is in gap connection with the right side of the sealing ring (6), a valve body (1) is bonded on the left side of the sealing ring (6), a mounting groove (8) is formed in the inner side of the valve body (1), a spring b (14) is detachably connected in each mounting groove (8), a sealing ring (6) is in gap connection with the spring b (14), a lower valve seat (9) is bolted to the, the valve body is characterized in that clamping grooves a (11) are formed in two sides of the top end of the lower valve seat (9), a spring a (13) is detachably connected to the clamping grooves a (11), a corrosion-resistant layer (16) is sprayed on the inner surface of the valve body (1), and rubber (17) is bonded on the surface of the corrosion-resistant layer (16).

2. The angular stroke electric actuator for the ball valve according to claim 1, wherein the mounting seat (2) is bolted with the valve body (1) through a screw b (18), and the upper valve seat (4) is internally and interstitially connected with the valve rod (5).

3. The angular travel electric actuator for the ball valve according to claim 2, wherein the ball body (7) is fixedly connected to the bottom end of the valve rod (5), and an arc-shaped groove (12) is formed in the inner surface of the sealing ring (6).

4. The angular stroke electric actuator for the ball valve according to claim 1, wherein the valve body (1) is provided with eight screw holes (15) and the number of the screw holes (15) is eight.