CN210978556U

CN210978556U - Pipeline leakage detection butterfly valve

Info

Publication number: CN210978556U
Application number: CN201921535034.5U
Authority: CN
Inventors: 吴进武; 幸华松
Original assignee: Shanghai East Well Valve Co ltd
Current assignee: Shanghai East Well Valve Co ltd
Priority date: 2019-09-16
Filing date: 2019-09-16
Publication date: 2020-07-10
Anticipated expiration: 2029-09-16

Abstract

The utility model discloses a pipeline leakage detection butterfly valve in the technical field of valves, which comprises a valve body, a bracket and a valve rod, electric actuator, pressure sensor, the support sets up in the valve body top and links firmly with the valve body, electric actuator installs on the support, the valve rod passes support and valve body and all rotates with support and valve body to be connected, valve rod upper end and electric actuator's sector gear fixed connection, install the butterfly plate on the valve rod, the butterfly plate is located the valve body, be equipped with elastic seal structure between one side of butterfly plate and valve body, elastic seal structure includes T type disk seat, the clamping ring, T type disk seat cover is established between butterfly plate and clamp plate, the clamp plate is installed on the butterfly plate, fixed connection between butterfly plate and the clamp plate, pressure sensor is installed in the valve body outside, pressure sensor passes through the electric wire and links to each other with electric actuator, the utility model discloses can feed back the pressure variation condition to the control room of butterfly plate switch in-process at any time under the zero circumstances.

Description

Pipeline leakage detection butterfly valve

Technical Field

The utility model relates to the technical field of valves, specifically be a pipeline butterfly valve that leaks hunting.

Background

The pipeline leakage detection butterfly valve is mainly used in the fields of water conservancy, petroleum, chemical engineering, fertilizers, power stations, metallurgy, papermaking, light industry and the like, is used as a mechanism for cutting off and adjusting on a pipeline, is suitable for media such as gas, liquid and the like, and has the advantages of short switching time, small flow resistance and the like. The pipeline leakage detection butterfly valve is used as a control element on a pipeline and is widely applied to various pipelines of a water conservancy system, particularly large-diameter pipelines. The traditional pipeline leakage detection butterfly valve is limited by the structure thereof, (1) the pressure change condition in the valve body can not be clearly known in the opening and closing process of the valve; (2) a simple pressure gauge can only observe the pressure value in the working process of the valve on site, and the pressure change condition of the valve during working cannot be visually known in a control room, so that a pipeline leakage detection butterfly valve is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pipeline leak hunting butterfly valve, its simple structure, novel in design reasonable and use easy and simple to handle, can guarantee under the condition that two way seal does not leak, effectively solve the condition that can not open and close and adjust the change of the valve body internal pressure of fluid in-process at the audio-visual understanding valve of control room in the current pipeline leak hunting butterfly valve structure, use safe and reliable.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a butterfly valve leaks hunting of pipeline, includes valve body, support, valve rod, electric actuator, pressure sensor, the support sets up in the valve body top and rather than fixed connection, electric actuator installs on the support, the valve rod passes support and valve body and all rotates with support and valve body to be connected, valve rod upper end and electric actuator's sector gear fixed connection, install the butterfly plate on the valve rod, the butterfly plate is located the valve body, be equipped with elastic seal structure between one side of butterfly plate and valve body, elastic seal structure includes T type disk seat and clamp plate, and T type disk seat cover is established between butterfly plate and clamp plate, the clamp plate is installed on the butterfly plate, fixed connection between butterfly plate and the clamp plate, pressure sensor is installed in the valve body outside, pressure sensor passes through the electric wire and links to each other with electric actuator.

Further, the T-shaped valve seat is sleeved between the butterfly plate and the pressure plate, and the butterfly plate is connected with the pressure plate through screws.

Furthermore, a plurality of taper pins are fixedly connected between the valve rod and the butterfly plate.

Furthermore, a sealing packing and a packing gland are arranged between the upper part of the valve body and the valve rod, and the packing gland and the valve body are fixedly connected through a first stud and a first nut.

Further, the support is fixedly connected with the valve body through a second stud and a second nut.

Further, the valve rod is connected with the electric actuator through a flat key, and a third stud and a third nut are arranged between the valve rod and the electric actuator.

Further, a set screw is arranged between the bracket and the electric actuator.

Further, the valve body and the pressure sensor are connected through conical threads.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model has the advantages of simple structure and reasonable design and use convenient operation.

2. The utility model discloses owing to adopt T type section sealing washer between butterfly plate and clamp plate, can not become flexible, it is sealed more reliable, also convenient online change and maintenance.

3. The utility model discloses adopt the screw connection between butterfly plate and the clamp plate, can control T type section sealing washer's decrement through adjusting screw, come adjusting valve's sealed degree.

4. The utility model discloses a be provided with holding screw between support and the electric actuator, the better location fit of electric actuator and support when making the installation.

5. The utility model discloses because pressure sensor installs at the valve body middle part, in the valve working process, can feed back pressure variation to control box or control room at any time.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is an enlarged schematic view of the structure at a position a of the present invention.

In the figure: 1. a valve body; 2. a valve stem; 3. a butterfly plate; 4. pressing a plate; 5. a screw; 6. a taper pin; 7. a T-shaped valve seat; 8. sealing and filling; 9. a first stud; 10. a first nut; 11. a packing gland; 12. a second stud; 13. a second nut; 14. a support; 15. a flat bond; 16. a third stud; 17. a third nut; 18. an electric actuator; 19. tightening the screw; 20. a pressure sensor.

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, 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 work belong to the protection scope of the present invention.

The utility model provides a pipeline leakage detection butterfly valve, which can feed back the pressure change condition in the butterfly plate opening and closing process to a control room at any time under the condition of realizing bidirectional sealing and zero leakage;

referring to fig. 1, a support 14 is arranged above a valve body 1 and fixedly connected with the valve body 1, an electric actuator 18 is mounted on the support 14, a valve rod 2 penetrates through the support 14 and the valve body 1 and is rotatably connected with the support 14 and the valve body 1, and the upper end of the valve rod 2 is fixedly connected with a sector gear of the electric actuator 18;

referring to fig. 1, a butterfly plate 3 is mounted on a valve rod 2, the butterfly plate 3 is located in a valve body 1, an elastic sealing structure is arranged between the butterfly plate 3 and one side of the valve body 1, the elastic sealing structure comprises a T-shaped valve seat 7 and a pressing plate 4, the T-shaped valve seat is sleeved between the butterfly plate 3 and the pressing plate 4, and the pressing plate 4 is mounted on the butterfly plate 3;

referring to fig. 1, a butterfly plate 3 is mounted on a valve rod 2, the butterfly plate 3 is located in a valve body 1, an elastic sealing structure is arranged between the butterfly plate 3 and one side of the valve body 1, the elastic sealing structure comprises a T-shaped valve seat and a pressing ring, the T-shaped valve seat is sleeved between the butterfly plate 3 and a pressing plate 4, and the pressing plate 4 is mounted on the butterfly plate 3.

Example (b): during the use, all with the both sides of valve body 1 with pipeline flange joint, the switch-on and the truncation of butterfly valve are realized by 90 degrees rotatory butterfly plate 3, circular telegram or manual clockwise, the butterfly valve can be opened or closed to the hand wheel on anticlockwise 90 degrees rotation electric actuator 18, because be equipped with elastic sealing structure between one side of butterfly plate 3 and valve body 1, elastic sealing structure includes T type disk seat 7, clamp plate 4, under the two-way atress condition of positive and negative, the homoenergetic realizes sealedly, pressure sensor 20 is installed in the valve body 1 outside simultaneously, pressure sensor 20 passes through the electric wire and links to each other with electric actuator 18, can feed back the pressure variation condition to the control room of butterfly plate switch in-process at any time under the condition of realizing two-way sealed zero leakage.

The T-shaped valve seat is sleeved between the butterfly plate 3 and the pressure plate 4, and the butterfly plate 3 is connected with the pressure plate 4 through the screw 5.

A plurality of taper pins 6 are fixedly connected between the valve rod 2 and the butterfly plate 3.

A sealing packing 8 and a packing gland 11 are arranged between the upper part of the valve body 1 and the valve rod 2, and the packing gland 11 is fixedly connected with the valve body 1 through a first stud 9 and a first nut 10.

The bracket 14 is fixedly connected with the valve body 1 through a second stud 12 and a second nut 13.

The valve rod 2 is connected with an electric actuator 18 through a flat key 15, and a third stud 16 and a third nut 17 are arranged between the valve rod 2 and the electric actuator 18.

A set screw 19 is arranged between the bracket 14 and the electric actuator 18. The valve body 1 and the pressure sensor 20 are connected by a taper thread.

The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the description with the record of drawing of description, and the concrete connection mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt prior art, and conventional model, including circuit connection adopts conventional connection mode among the prior art, does not detailed here again.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a pipeline butterfly valve that leaks hunting which characterized in that: the pressure-sensitive valve comprises a valve body (1), a support (14), a valve rod (2), an electric actuator (18) and a pressure sensor (20), wherein the support (14) is arranged above the valve body (1) and is fixedly connected with the valve body, the electric actuator (18) is arranged on the support (14), the valve rod (2) penetrates through the support (14) and the valve body (1) and is rotationally connected with the support (14) and the valve body (1), the upper end of the valve rod (2) is fixedly connected with a sector gear of the electric actuator (18), a butterfly plate (3) is arranged on the valve rod (2), the butterfly plate (3) is positioned in the valve body (1), an elastic sealing structure is arranged between one side of the butterfly plate (3) and one side of the valve body (1) and comprises a T-shaped valve seat (7) and a pressing plate (4), the T-shaped valve seat (7) is sleeved between the butterfly plate (3) and the pressing, the butterfly valve is characterized in that the pressing plate (4) is installed on the butterfly plate (3), the butterfly plate (3) is fixedly connected with the pressing plate (4), the pressure sensor (20) is installed on the outer side of the valve body (1), and the pressure sensor (20) is connected with the electric actuator (18) through an electric wire.

2. The pipeline leakage detection butterfly valve according to claim 1, characterized in that: the T-shaped valve seat is sleeved between the butterfly plate (3) and the pressing plate (4), and the butterfly plate (3) is connected with the pressing plate (4) through a screw (5).

3. The pipeline leakage detection butterfly valve according to claim 1, characterized in that: a plurality of taper pins (6) are fixedly connected between the valve rod (2) and the butterfly plate (3).

4. The pipeline leakage detection butterfly valve according to claim 1, characterized in that: a sealing packing (8) and a packing gland (11) are arranged between the upper portion of the valve body (1) and the valve rod (2), and the packing gland (11) is fixedly connected with the valve body (1) through a first stud (9) and a first nut (10).

5. The pipeline leakage detection butterfly valve according to claim 1, characterized in that: the support (14) is fixedly connected with the valve body (1) through a second stud (12) and a second nut (13).

6. The pipeline leakage detection butterfly valve according to claim 1, characterized in that: the valve rod (2) is connected with the electric actuator (18) through a flat key (15), and a third stud (16) and a third nut (17) are arranged between the valve rod (2) and the electric actuator (18).

7. The pipeline leakage detection butterfly valve according to claim 1, characterized in that: a set screw (19) is arranged between the bracket (14) and the electric actuator (18).

8. The pipeline leakage detection butterfly valve according to claim 1, characterized in that: the valve body (1) is connected with the pressure sensor (20) through conical threads.