CN206945241U - Bidirectional sealed butterfly valve device for detecting sealability - Google Patents

Abstract

The utility model discloses a kind of bidirectional sealed butterfly valve device for detecting sealability, including main backstop, the main backstop includes the column of 4 rhizosphere squarelys, column at left and right sides of main backstop upper end is connected by a connecting rod respectively, the connecting rod of the left and right sides is connected by fix bar, the fix bar lower end is provided with the first cylinder, and the piston rod of the first cylinder is connected with upper holder block, and drives upper holder block to move up and down.The utility model using when bidirectional sealed butterfly valve is placed on lower lock block, the distance of upper holder block and lower lock block is adjusted by the first cylinder and the 3rd cylinder, the flap portion of butterfly valve is sealed, then, respectively to upper holder block and lower lock block, high pressure water injection is carried out by booster pump, the pressure of water filling is observed by pressure gauge, after pressure reaches the value of needs, keep pressure, the sealing of flap is tested, easy to operate, effect is preferable.

Description

Two-way seal butterfly valve leak detection device

technical field

The utility model belongs to the technical field of butterfly valve processing, in particular to a sealing performance detection device for a bidirectional sealing butterfly valve.

Background technique

The two-way sealing butterfly valve means that the butterfly plate can face or face the flow direction of the medium. It is not necessary to pay attention to the flow direction of the medium during installation, and there is no arrow indicating the flow direction of the medium on the valve body.

The water tightness test of the valve disc is a process in the processing of two-way sealing butterfly valves. At present, the water tightness testing equipment of bidirectional sealing butterfly valves used by various manufacturers is non-standard equipment. Therefore, in order to meet the needs of use, this application designs a bidirectional sealing butterfly valve sealing performance testing device.

Utility model content

In view of the above-mentioned usage requirements, the present application provides a sealing performance detection device for a bidirectional sealing butterfly valve.

In order to achieve the purpose of the utility model, the utility model provides a two-way sealing butterfly valve sealing performance detection device, including a main support frame, the main support frame includes 4 columns surrounded by a square, and the left and right sides of the upper end of the main support frame The columns are respectively connected by a connecting rod, and the connecting rods on the left and right sides are connected by a fixed rod. The first cylinder is installed at the lower end of the fixed rod, and the piston rod of the first cylinder is connected with an upper pressing block, which drives the upper pressing block to move up and down A lower pressing block is installed below the upper pressing block, the lower end of the lower pressing block is connected with a third cylinder, the piston rod of the third cylinder is connected with the lower end of the lower pressing block, and drives the lower pressing block to move up and down; The briquetting block has a structure with a first cavity, the upper end surface of the lower briquetting block is provided with a liquid outlet that communicates with the first cavity, and the upper briquetting block has a structure with a second cavity. The lower end surface of the upper pressing block is provided with a liquid outlet hole communicating with the second cavity, and the first cavity is sequentially connected with a third shut-off valve, a pressure gauge, a shut-off valve, and a liquid storage tank through the first pipeline, The first pipeline between the third shutoff valve and the pressure gauge communicates with the second cavity through the second pipeline, and the second shutoff valve is arranged on the second pipeline.

The beneficial effect of the utility model is that, compared with the prior art, the two-way sealing butterfly valve is placed on the lower pressing block when in use, and the distance between the upper pressing block and the lower pressing block is adjusted by the first cylinder and the third air cylinder, and the valve of the butterfly valve The petals are sealed, and then the upper and lower pressing blocks are injected with high-pressure water through the booster pump, and the pressure of the water injection is observed through the pressure gauge. After the pressure reaches the required value, the pressure is maintained to test the tightness of the valve disc. The operation is convenient and the effect is good.

Description of drawings

Fig. 1 shows the first schematic diagram of the structure of the present application;

Fig. 2 shows the partial structural representation of the present application;

Fig. 3 shows the schematic diagram of the connecting structure of the sliding block and the supporting block of the present application;

In the figure, 1-liquid storage tank, 2-pressure gauge, 3-shut-off valve, 4-main support frame, 5-upper pressure block, 6-fixing rod, 7-first cylinder, 8-upper gasket, 9 -Clamp arm, 10-sliding block, 11-second cylinder, 12-support platform, 13-conveyor frame, 14-reduction motor, 15-third cylinder, 16-down pressing block, 17-limiting block, 18- Booster pump, 19-lower sealing gasket, 20-screw rod, 21-connecting rod, 22-support block, 23-second shut-off valve, 24-third shut-off valve, 25-second pipeline.

detailed description

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

It should be noted that the "connection" mentioned in this application and the words used to express "connection", such as "connected", "connected", etc., include not only a direct connection between a certain component and another component, but also a certain One part is connected to another part through other parts.

It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

As shown in Figures 1-3, a centerline butterfly valve airtightness detection device is provided, including a main support frame 4. The main support frame 4 includes four columns forming a square, and the columns on the left and right sides of the upper end of the main support frame 4 Respectively through a connecting rod 21 welding connection, the connecting rods 21 on the left and right sides are welded and connected by the fixed rod 6, the lower end of the fixed rod 6 is welded or the first gas cylinder is installed by bolts, and the piston rod of the first cylinder 7 is welded Or be connected with upper pressing block 5 by bolt, and drive upper pressing block 5 to move up and down; Lower pressing block 16 is installed below upper pressing block 5, and described lower pressing block 16 lower end is welded or is connected with the 3rd cylinder 15 by bolt, so The piston rod of the third cylinder 15 is connected to the lower end of the lower pressing block 16, and drives the lower pressing block 16 to move up and down; the lower pressing block 16 is a structure provided with a first cavity, and the upper end surface of the lower pressing block 16 A liquid outlet that communicates with the first cavity is provided, the upper pressing block 5 is a structure provided with a second cavity, and the lower end surface of the upper pressing block 5 is provided with a liquid outlet that communicates with the second cavity. hole, the first cavity is sequentially connected with the third shut-off valve 24, pressure gauge 2, shut-off valve 3, liquid storage tank 1, the third shut-off valve 24, and the pressure gauge 2 through the first pipeline. The first pipeline communicates with the second cavity through the second pipeline 25 , and the second shut-off valve 23 is arranged on the second pipeline 25 .

When in use, place the two-way sealing butterfly valve on the lower pressing block, adjust the distance between the upper pressing block and the lower pressing block through the first cylinder and the third cylinder, and seal the disc of the butterfly valve, and then respectively seal the upper pressing block and the lower pressing block. The briquette is injected with high-pressure water through the booster pump, and the pressure of the water injection is observed through the pressure gauge. After the pressure reaches the required value, the pressure is maintained to test the sealing of the valve disc. The operation is convenient and the effect is good.

Open the shut-off valve and the third shut-off valve, close the second shut-off valve, and fill water into the downward pressure block for measurement; when pressing upward for measurement, close the third shut-off valve, open the second shut-off valve and press upward Block water injection measurements.

In a preferred embodiment, the upper pressing block 5 and the lower pressing block 16 are square, and through holes are provided at four corners, through which they are slidably connected with the uprights. The upper pressing block and the lower pressing block are guided by the column, so that the operation is stable and the sealing state is easy to be achieved.

In a preferred embodiment, a limiting block 17 is fixedly connected to the column below the lower pressing block 16 .

In a preferred embodiment, an upper gasket and a lower gasket are respectively bonded to the lower end surface of the upper pressing block 5 and the upper end surface of the lower pressing block 16 .

In a preferred embodiment, the upper gasket and the lower gasket are made of rubber material.

Because the end face of the valve body is mainly metal structure, therefore, the sealing performance is better through the gasket structure.

In a preferred embodiment, the application also includes a portable delivery frame, which includes a clamp arm 9, a sliding block 10, a second cylinder 11, a support platform 12, a delivery bracket 13, a reduction motor 14, and the support The platform is set on the conveying bracket, and the support platform is provided with a decelerating motor, a second cylinder, a sliding block, and a supporting block, and the decelerating motor is arranged on the supporting block, and moves together with the supporting block, and there are two sliding blocks, The lower ends of the two sliding blocks are provided with bumps, the upper end of the support block is provided with sliding grooves, the bumps are slidably connected in the sliding grooves, the stacking rod 20 is threaded with the two sliding blocks, the reduction motor is connected to the screw rod 20, and When the screw rotates, in one direction, the two sliding blocks move away from each other; when the screw rotates in the other direction, the two sliding blocks move toward the approaching direction, respectively. A clamping arm 9 is connected, and the two clamping arms 9 are symmetrical in structure, and arc-shaped structures are provided on the inner surfaces to clamp the valve body.

The support platform can be higher than the lower pressure block. When in use, place the butterfly valve to be measured on the support platform. Within the range of the two clamp arms, the distance between the two clamp arms is controlled by the deceleration motor, and the front and rear distance is passed through the second cylinder. After clamping the butterfly valve, use the second cylinder to put it on the lower pressing block. When taking it off, the process is reversed.

The conveying rack has a simple structure and avoids the problem of affecting the movement due to the large number of equipment components when the lower pressing block is directly placed.

While various concepts have been described in detail, those skilled in the art will appreciate that various modifications and substitutions to those concepts are possible within the spirit of the overall teachings of the present disclosure. Those skilled in the art can implement the invention set forth in the claims without undue experimentation using ordinary techniques. It should also be understood that the specific concepts disclosed are illustrative only and are not intended to limit the scope of the invention which is to be determined by the appended claims and their full scope of equivalents.

Claims (1)

1. A two-way sealing butterfly valve leak detection device is characterized in that it includes a main support frame, and the main support frame includes 4 columns that surround a square, and the columns on the left and right sides of the upper end of the main support frame pass through a connecting rod respectively Connection, the connecting rods on the left and right sides are connected by a fixed rod, the lower end of the fixed rod is installed with a first cylinder, the piston rod of the first cylinder is connected with an upper pressing block, and drives the upper pressing block to move up and down; The lower pressing block, the lower end of the lower pressing block is connected with a third cylinder, the piston rod of the third cylinder is connected with the lower end of the lower pressing block, and drives the lower pressing block to move up and down; the lower pressing block is provided with a first The structure of the cavity, the upper end surface of the lower pressing block is provided with a liquid outlet that communicates with the first cavity, the upper pressing block is a structure with a second cavity, and the lower end surface of the upper pressing block is provided with The liquid outlet hole of the second cavity is connected, and the first cavity is sequentially connected with a third shut-off valve, a pressure gauge, a shut-off valve, a liquid storage tank through a first pipeline, a third shut-off valve, a pressure The first pipeline between the meters communicates with the second cavity through the second pipeline, and the second shut-off valve is arranged on the second pipeline.