CN218408553U

CN218408553U - Valve plate anti-impact device of pump station water outlet butterfly valve

Info

Publication number: CN218408553U
Application number: CN202222744386.XU
Authority: CN
Inventors: 董雪旺; 胡伟勇; 李峰生; 吕乃璃
Original assignee: Gansu Jingtaichuan Electric Power Irrigation Water Resources Utilization Center
Current assignee: Gansu Jingtaichuan Electric Power Irrigation Water Resources Utilization Center
Priority date: 2022-10-18
Filing date: 2022-10-18
Publication date: 2023-01-31
Anticipated expiration: 2032-10-18

Abstract

The utility model relates to the technical field of butterfly valves, in particular to a valve plate anti-impact device of a pump station water outlet butterfly valve, which comprises a butterfly valve main body, a water inlet pipeline and a slide plate; a valve plate is rotatably arranged in the butterfly valve main body, and a sealing ring is arranged on the outer side of the valve plate; a water inlet of the butterfly valve main body is connected with a water inlet pipeline, and a slide plate is arranged inside the water inlet pipeline; when the valve plate is in an open state, the water inlet surface of the valve plate is arranged as a working surface, and the slide plate is arranged on the water inlet side of the working surface; the side-view cross section of the slide plate is of a triangular structure, and the tip end of the slide plate is arranged on one side far away from the working surface. The scheme adds the slide plate on the water inlet side of the valve plate, so that the slide plate can be firstly contacted with the slide plate before water flows through the working surface of the valve plate, the water flow on the water inlet side of the valve plate is divided to two sides of the working surface of the valve plate through the slide plate, the direct impact of the water flow on the sealing ring and the valve plate is reduced, and the service life of the sealing ring and the valve plate is prolonged.

Description

Valve plate anti-impact device of pump station water outlet butterfly valve

Technical Field

The utility model relates to a butterfly valve technical field specifically is a pump station goes out valve plate anti-shock mounting of water butterfly valve.

Background

The valve that the play water side of current pump station water pump set up is mostly the liquid accuse butterfly valve, this type of butterfly valve main function is the interior rivers of break-make pipeline, the valve is closed before the start, play the water pump decompression and start, avoid motor current too big and water pump and pipeline vibration etc. effect, when shutting down, close fast slowly through the stroke control valve, prevent that water pressure backflow unit reverses in the pipeline and even flies down and cause the unit to damage and pipeline high pressure water backflow intraductal gas pressurized formation high strength water hammer causes the pipeline to burst into the accident. Therefore, the water outlet valve is an important guarantee for the safe operation of the high-lift pump station.

Rubber sealing rings are mostly arranged on the contact surface of the valve plate and the valve body, and in the running process of the water pump, the circumferential outer side wall of the valve plate in the butterfly valve and the sealing rings on the outer side of the valve plate can be directly impacted by water flow, so that the valve plate and the sealing rings are easy to cause abrasion damage, the valve is easy to have the conditions of being inflexible in opening and closing, being untight in closing and even being damaged, and the service life of the valve is shortened; simultaneously, because valve plate self has certain thickness, lead to when rivers flow through the valve plate, increased the resistance of rivers, reduced the flow of the pump body of being connected with the butterfly valve to a certain extent.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pump station goes out valve plate anti-shock mounting of water butterfly valve to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a valve plate anti-impact device of a pump station water outlet butterfly valve comprises a butterfly valve main body, a water inlet pipeline and a slide plate; a valve plate is rotatably arranged in the butterfly valve main body, and a sealing ring is arranged on the outer side of the valve plate; a water inlet of the butterfly valve main body is connected with a water inlet pipeline, and a slide plate is arranged inside the water inlet pipeline; when the valve plate is in an open state, the water inlet surface of the valve plate is arranged as a working surface, and the slide plate is arranged on the water inlet side of the working surface; the side-view cross section of the slide plate is of a triangular structure, and the tip end of the slide plate is arranged on one side far away from the working surface.

Preferably, the slide plate comprises a first buffer plate and a second buffer plate which are connected up and down, and the first buffer plate and the second buffer plate are arranged in an up-and-down symmetrical manner.

Preferably, the cross sections of the first buffer plate and the second buffer plate are in an isosceles triangle structure after the ends of the first buffer plate and the second buffer plate, which are far away from the working face, are connected with each other.

Preferably, the arc-shaped opening convenient for the rotation of the valve plate is formed in one end, close to the working surface, of the first buffer plate and the second buffer plate.

Preferably, the width of first buffer board, second buffer board is unanimous with the diameter of inlet channel, and the end wall all welds on the inner chamber wall of inlet channel about two sets of buffer boards.

Preferably, the end wall of the slide plate close to the working face has a thickness no greater than the thickness of the working face.

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

1. the utility model provides a pair of pump station goes out valve plate anti-shock mounting of water butterfly valve, this scheme is to sealing washer and valve plate in the present butterfly valve because of receiving rivers direct impact for a long time, the technical problem of damage appears easily, the side of intaking at the valve plate has increased the slipsheet, make it can flow through earlier before the working face of valve plate with the slipsheet contact, through the both sides of the rivers reposition of redundant personnel to the valve plate working face of the side of intaking the valve plate of slipsheet, reduce rivers to the sealing washer, the direct impact of valve plate, the extension sealing washer, the life of valve plate.

2. The utility model provides a pair of pump station goes out valve plate anti-shock mounting of water butterfly valve, this anti-shock mounting can effectually reduce the valve plate to the resistance of rivers owing to the design of slope about it, has increased the flow of water pump to a certain extent, has played energy-conservation, effect of increasing.

Drawings

FIG. 1 is a schematic view of the connection structure of the water inlet pipe and the butterfly valve main body of the present invention;

FIG. 2 is a schematic view of the detailed structure of the present invention;

fig. 3 is a side sectional view of the present invention;

fig. 4 is a schematic view of the connection structure of the slide plate and the valve plate of the present invention.

In the figure: 1. a butterfly valve body; 2. a water inlet pipe; 3. a slide plate; 31. a first buffer plate; 32. a second buffer plate; 33. an arc-shaped opening; 4. a valve plate; 41. a working surface; 5. a seal ring; 6. a connecting rod; 7. And limiting abutting blocks.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-4, the present invention provides a technical solution: a valve plate anti-impact device of a pump station water outlet butterfly valve comprises a butterfly valve main body 1, a water inlet pipeline 2 and a slide plate 3; a valve plate 4 is rotatably arranged in the butterfly valve main body 1, and a sealing ring 5 is arranged on the outer side of the valve plate 4; a water inlet of the butterfly valve main body 1 is connected with a water inlet pipeline 2, and a slide plate 3 is arranged inside the water inlet pipeline 2; when the valve plate 4 is in an open state, the water inlet surface of the valve plate 4 is set as a working surface 41, and the slide plate 3 is arranged on the water inlet side of the working surface 41; the cross section of the slide plate 3 is triangular, and the tip of the slide plate 3 is disposed on the side far from the working surface 41.

As a preferred embodiment, the slide plate 3 includes a first buffer plate 31 and a second buffer plate 32 connected up and down, and the first buffer plate 31 and the second buffer plate 32 are arranged up and down symmetrically.

In a preferred embodiment, the first buffer plate 31 and the second buffer plate 32 have an isosceles triangle cross section after connecting the ends far away from the working surface 41.

As a preferred embodiment, the ends of the first damping plate 31 and the second damping plate 32 close to the working surface 41 are both provided with arc-shaped openings 33 which are convenient for the valve plate 4 to rotate.

As a preferred embodiment, the width of the first buffer plate 31 and the second buffer plate 32 is consistent with the diameter of the water inlet pipe 2, and the left and right end walls of the two groups of buffer plates are welded on the inner cavity wall of the water inlet pipe 2.

As a preferred embodiment, the thickness of the end wall of the slide plate 3 near the working surface 41 is not greater than the thickness of the working surface 41.

The working principle is as follows: when this butterfly valve main part 1 actually uses, lead-in to butterfly valve main part 1 with external rivers through inlet channel 2 in, because this scheme has increased slide plate 3 at the side of intaking of valve plate 4, make it can flow through the working face 41 of valve plate 4 before with slide plate 3 contact earlier, the rivers reposition of redundant personnel of the side of intaking of valve plate 4 through slide plate 3, make rivers along first buffer plate 31, the inclined plane reposition of redundant personnel of second buffer plate 32 to the both sides of working face 41, with this pressure with most rivers, the impact force dispersion is to all sides of valve plate 4, make after rivers get into butterfly valve main part 1, reduce sealing washer 5, the direct impact of all sides of valve plate 4, play the effect of protection to sealing washer 5, valve plate 4, prolong sealing washer 5, the life of valve plate 4.

Before the slide plate 3 is used, a reinforced connecting structure can be additionally arranged on the slide plate 3, so that the tightness of the connection between the slide plate 3 and the water inlet pipeline 2 is improved, and the stability and the shock resistance of the slide plate 3 are improved.

The reinforced connecting structure can be a connecting rod 6, the connecting rod is arranged on the upper slope surface and the lower slope surface of the slide plate 3, and one end far away from the slide plate 3 is connected with the inner cavity wall of the water inlet pipeline 2.

The reinforced connecting structure can also be a limiting abutting block 7, the limiting abutting block 7 is connected with the end wall of one side, close to the working surface 41, of the slide plate 3, the limiting abutting block 7 is welded on the inner cavity wall of the water inlet pipeline 2, and after the slide plate 3 bears the hydraulic impact from front to back, the impact resistance of the slide plate 3 can be improved on the back side of the slide plate 3.

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 pump station goes out valve plate anti-shock mounting of water butterfly valve which characterized in that: comprises a butterfly valve main body (1), a water inlet pipeline (2) and a slide plate (3); a valve plate (4) is rotatably arranged in the butterfly valve main body (1), and a sealing ring (5) is arranged on the outer side of the valve plate (4); a water inlet of the butterfly valve main body (1) is connected with a water inlet pipeline (2), and a slide plate (3) is arranged inside the water inlet pipeline (2); when the valve plate (4) is in an open state, the water inlet surface of the valve plate (4) is set as a working surface (41), and the slide plate (3) is arranged on the water inlet side of the working surface (41); the cross section of the side view of the slide plate (3) is of a triangular structure, and the tip of the slide plate (3) is arranged on one side far away from the working surface (41).

2. The valve plate anti-impact device of the pump station water outlet butterfly valve according to claim 1, characterized in that: the slide plate (3) comprises a first buffer plate (31) and a second buffer plate (32) which are connected up and down, and the first buffer plate (31) and the second buffer plate (32) are arranged in an up-and-down symmetrical mode.

3. The valve plate anti-impact device of the pump station water outlet butterfly valve according to claim 2, characterized in that: the cross sections of the first buffer plate (31) and the second buffer plate (32) are in an isosceles triangle structure after the ends far away from the working surface (41) are connected with each other.

4. The valve plate anti-impact device of the pump station water outlet butterfly valve according to claim 2, characterized in that: arc opening (33) convenient to valve plate (4) rotation are all seted up to first buffer board (31), second buffer board (32) one end that is close to working face (41).

5. The valve plate anti-impact device of the pump station water outlet butterfly valve according to claim 2, characterized in that: the width of first buffer board (31), second buffer board (32) is unanimous with the diameter of inlet channel (2), and the end wall all welds on the inner chamber wall of inlet channel (2) about two sets of buffer boards.

6. The valve plate anti-impact device of the pump station water outlet butterfly valve according to claim 1, characterized in that: the thickness of the end wall of one end of the slide plate (3) close to the working surface (41) is not more than that of the working surface (41).