CN216430688U - A pressure measuring open rod soft sealing gate valve with flange - Google Patents

Abstract

The utility model provides a pressure measuring rising stem soft sealing gate valve with a flange plate, which is simple in structure and capable of preventing a water hammer, and comprises a gate valve body, a valve cover arranged above the gate valve body, a water inlet channel and a water outlet channel which are arranged along the radial direction of the gate valve body, and a valve plate arranged between the water inlet channel and the water outlet channel and used for controlling opening and closing of fluid, wherein a valve rod is arranged above the valve plate and positioned in the gate valve body, a first channel is arranged above the valve rod, the upper end part of the valve rod penetrates out of the first channel, the valve plate is arranged on the valve rod through a lifting device, an inflation ball capable of expanding after inflation is arranged on the water outlet channel of the gate valve body, and an inflation device used for inflating the inflation ball is arranged on the gate valve body.

Description

A pressure measuring open rod soft sealing gate valve with flange

technical field

The utility model relates to the field of valves, in particular to a pressure-measuring open-rod soft-sealing gate valve with a flange.

Background technique

The gate valve is an opening and closing gate. The movement direction of the gate is perpendicular to the direction of the fluid. The gate valve can only be fully opened and fully closed, and cannot be adjusted or throttled. The rising stem gate valve is a valve commonly used in pipeline transportation. When the rising stem gate valve is closed, it will produce a water hammer effect, hit the valve plate, cause damage to the valve plate, and reduce the service life of the valve.

Utility model content

Therefore, in view of the above problems, the present utility model proposes a pressure-measuring open-rod soft-sealing gate valve with a flange, which is simple in structure and can prevent hammers.

In order to achieve the above purpose, the technical scheme of the present utility model is to provide a pressure-measuring open-rod soft-sealed gate valve with a flange, which includes a gate valve body, a valve cover arranged above the gate valve body, and a valve cover along the radial direction of the gate valve body. The opened water inlet channel and water outlet channel, and the valve plate arranged between the water inlet channel and the water outlet channel for controlling the opening and closing of the fluid. A first channel is opened above the valve stem, the upper end of the valve stem penetrates the first channel, the valve plate is set on the valve stem through a lifting device, and the gate valve body is located in the water outlet channel. Inflatable ball, the gate valve body is provided with an inflatable device for inflating the inflatable ball.

A further improvement is that: the inflatable device includes an inflatable bag, the gate valve body is provided with an air intake channel that penetrates the gate valve body, one end of the inflatable bag is connected to the air intake channel and is located outside the gate valve body, and the inflatable ball One end is connected with the intake passage.

A further improvement is that: the gate valve body is provided with a plurality of first connecting ears on the inner wall of the water outlet channel, the inflatable ball is provided with a second connecting ear, and an elastic is arranged between the first connecting ear and the second connecting ear. pieces.

A further improvement is that: the elastic member is a tension spring, one end of the tension spring is hooked on the first connecting ear, and one end of the tension spring is hooked on the second connecting ear.

A further improvement is that: the inflatable ball is connected to the air inlet passage through a first hose, and the first hose is threadedly connected to the gate valve body.

A further improvement is that: the air bag is connected to the air intake passage through a second hose, and the second hose is threadedly connected to the gate valve body.

A further improvement is that a U-shaped diversion groove is provided on the inflatable ball.

A further improvement is: the surface of the inflatable ball is provided with a wear-resistant layer.

A further improvement is that: the gate valve body is provided with a transparent observation window at the position of the inflatable ball.

The advantages and beneficial effects of the present utility model are:

Simple structure and convenient use. Inflating the inflatable ball through the flushing bag can effectively prevent the water hammer phenomenon caused by the backflow of the water flow after closing the gate valve, which will damage the valve plate, which is beneficial to protect the valve plate and improve the service life of the valve plate.

Description of drawings

FIG. 1 is a schematic cross-sectional structural diagram of a pressure-measuring open-rod soft-sealed gate valve with a flange according to an embodiment of the present utility model.

FIG. 2 is an enlarged schematic view of the structure of Embodiment A of the present invention.

Detailed ways

The specific embodiments of the present utility model will be further described below with reference to the accompanying drawings and embodiments. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and cannot be used to limit the protection scope of the present invention.

As shown in FIG. 1-FIG. 2, a pressure-measuring open-rod soft-sealed gate valve with a flange plate includes a gate valve body 1, a valve cover 4 arranged above the gate valve body 1, and a radial opening along the gate valve body 1. The water inlet channel 2 and the water outlet channel 3, and the valve plate 5 arranged between the water inlet channel 2 and the water outlet channel 3 for controlling the opening and closing of the fluid, the upper part of the valve plate 5 is located inside the gate valve body 1 A valve rod 6 is provided, a first channel is opened above the valve rod 6, the upper end of the valve rod 6 passes through the first channel, and the valve plate 5 is set on the valve rod 6 through a lifting device. The gate valve body 1 is located in the water outlet channel 3 and is provided with an inflatable ball 8 that is inflated after inflation. The gate valve body 1 is provided with an inflatable bag 13 for inflating the inflatable ball 8. The gate valve body 1 is provided with a penetration through the gate valve body 1. The air inlet channel 11 is connected to the air inlet channel 11 through the first hose 9 and the first hose 9 is threadedly connected to the gate valve body 1. The air bag 13 is connected to the gate valve body 1 through the second hose 12. The intake passage 11 is connected and the second hose 12 is screwed on the gate valve body 1 , and the air bag 13 is located outside the gate valve body 1 .

In order to further reduce the water hammer effect and protect the inflatable ball 8 , reduce the impact force of the inflatable ball 8 and improve its service life, the gate valve body 1 is provided with a first connecting ear 16 on the inner wall of the water outlet channel 3 , and the inflatable ball 8 A second connecting lug 14 is provided on the top, a tension spring 15 is arranged between the first connecting lug 16 and the second connecting lug 14, and one end of the tension spring 15 is hooked on the first connecting lug 16, One end of the tension spring 15 is hooked on the second connecting ear 14 .

In order to further protect the inflatable ball 8 , a U-shaped diversion groove (not shown in the figure) is formed on the inflatable ball 8 , and a wear-resistant layer is provided on the surface of the inflatable ball 8 .

In order to facilitate the observation of the inflatable ball 8 , a transparent observation window (not shown in the figure) is provided on the gate valve body 1 at the position of the inflatable ball 8 .

working principle:

When the gate valve is to be closed, press the inflatable bag 13 to expand the inflatable ball 8 and then close the gate valve. At this time, when the water flows back, the inflatable ball 8 is impacted, and the inflatable ball 8 moves toward the valve plate 5 and compresses and pulls By extending the spring 15, the water flow overcomes the resistance of the tension spring 15, thereby preventing the generation of water hammer effect. When opening the valve, open the exhaust valve on the inflatable bag 13, release the gas in the inflatable ball 8, and then open the gate valve to prevent the inflatable ball 8 from affecting the flow rate of the water flow.

The basic principles, main features and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments, and the descriptions in the above-mentioned embodiments and descriptions are only to illustrate the present invention. The principle of the present invention, without departing from the spirit and scope of the present utility model, the present utility model will also have various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model, and the utility model claims the scope of protection It is defined by the appended claims and their equivalents.

Claims (9)

1. The utility model provides a pressure measurement rising stem soft sealing gate valve with ring flange, include the gate valve body, set up in the valve gap of gate valve body top, along radial inhalant canal and the exhalant canal of seting up of gate valve body, set up in inhalant canal with be used for the valve plate that control fluid opened and close between the exhalant canal, the valve plate top is located the inside valve rod that is equipped with of gate valve body, first passageway has been seted up to the valve rod top, the valve rod upper end is worn out first passageway, the valve plate passes through elevating gear and locates on the valve rod, its characterized in that: the gate valve body is located in the water outlet channel and is provided with an inflatable ball which expands after inflation, and an inflation device used for inflating the inflatable ball is arranged on the gate valve body.

2. The pressure measuring rising stem soft seal gate valve with the flange plate as claimed in claim 1, wherein: the inflation device comprises an inflation bag, an air inlet channel penetrating through the gate valve body is formed in the gate valve body, one end of the inflation bag is connected with the air inlet channel and located outside the gate valve body, and one end of the inflation ball is connected with the air inlet channel.

3. The pressure measuring rising stem soft seal gate valve with the flange plate as claimed in claim 1, wherein: the inner wall of the gate valve body, which is positioned on the water outlet channel, is provided with a plurality of first connecting lugs, the inflatable ball is provided with a second connecting lug, and an elastic part is arranged between the first connecting lug and the second connecting lug.

4. The pressure measuring rising stem soft seal gate valve with the flange plate as claimed in claim 3, wherein: the elastic part is as follows: and one end of the extension spring is hooked on the first connecting lug, and one end of the extension spring is hooked on the second connecting lug.

5. The pressure measuring rising stem soft seal gate valve with the flange plate as claimed in claim 2, wherein: the inflatable ball is connected with the air inlet channel through a first hose, and the first hose is connected to the gate valve body through threads.

6. The pressure measuring rising stem soft seal gate valve with the flange plate as claimed in claim 2, wherein: the inflatable bag is connected with the air inlet channel through a second hose, and the second hose is in threaded connection with the gate valve body.

7. The pressure measuring rising stem soft seal gate valve with the flange plate as claimed in claim 1, wherein: the inflatable ball is provided with a U-shaped diversion trench.

8. The pressure measuring rising stem soft seal gate valve with the flange plate as claimed in claim 1, wherein: and the surface of the inflatable ball is provided with a wear-resistant layer.

9. The pressure measuring rising stem soft seal gate valve with the flange plate as claimed in claim 1, wherein: and a transparent observation window is arranged at the position of the gate valve body, which is positioned on the inflatable ball.

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