Universal pressure testing device for butterfly valves

Abstract

According to the technical scheme, the universal pressure testing device for the butterfly valve comprises a pressure mechanism, a supporting mechanism and a butterfly valve pressing component, the pressure mechanism is fixed to the top of the supporting mechanism, the butterfly valve pressing component comprises an upper sealing cover and a lower bearing seat, the upper sealing cover is fixed to the output end of the pressure mechanism and used for sealing an opening in the upper end of the butterfly valve, and the lower bearing seat is fixed to the output end of the supporting mechanism. The lower bearing seat is arranged on the ground to bear the butterfly valve and seal an opening in the lower end of the butterfly valve, the upper sealing cover is provided with an observation hole, the lower bearing seat is provided with a water inlet hole, and a water pipe is connected with the water inlet hole, then the water inlet hole is sealed through a sealing piece and connected with a water pump. The pressure testing device can be repeatedly used, is wide in coverage, improves the pressure testing quality and efficiency, saves the labor and material cost, and is high in practicability.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve technical field, specifically is a butterfly valve general pressure testing device. BACKGROUND

[0002] During the ship repairing process, the butterfly valve needs to be tested frequently to check whether the closing effect of the butterfly valve meets the specification requirements. In the ship repairing practice, the valve pressure testing, especially the butterfly valve pressure testing, is usually carried out by using a temporary prepared rotating door tool for pump pressure test. During the pump pressure test of the butterfly valve, due to the large number of butterfly valve types and the different sizes, the pressure testing tool needs to be prepared temporarily every time, which not only consumes time and effort, but also consumes a lot of materials. Moreover, the temporarily prepared tool is only suitable for specific valves and cannot be used for other butterfly valves, so the tool is basically discarded after use, which is a serious waste. SUMMARY

[0003] The utility model provides a butterfly valve general pressure testing device to solve the technical defects of the prior art.

[0004] To solve the above technical problems, the utility model technical scheme is a butterfly valve general pressure testing device, which comprises a pressure mechanism, a supporting mechanism, the pressure mechanism is fixed on the top of the supporting mechanism, a butterfly valve pressing member, the butterfly valve pressing member comprises an upper sealing cover and a lower bearing seat, the upper sealing cover is fixed on the output end of the pressure mechanism to seal the upper end opening of the butterfly valve, the lower bearing seat is placed on the ground to bear the butterfly valve and seal the lower end opening of the butterfly valve, the upper sealing cover is provided with an observation hole, the lower bearing seat is provided with a water inlet hole, one end of a water pipe is connected to the water inlet hole and sealed by a sealing element, and the other end is connected to a water pump, the pressure mechanism is a jack, and the supporting mechanism is a rectangular frame formed by welding a bottom plate, two side supports and a top support with a through hole for the piston of the jack to pass in and out, the upper sealing cover is fixedly connected to the end of the piston of the jack, and the cylinder of the jack is fixedly connected to the top support of the supporting mechanism.

[0005] The bottom plate is provided with rail square steels and lower pads, and the utility model further comprises a trolley matched with the rail square steels, and the trolley is provided with upper pads matched with the lower pads.

[0006] Specifically, inclined supports are connected between the bottom plate and the side supports of the supporting mechanism, and elbows are arranged on the side supports.

[0007] Specifically, the upper sealing cover is provided with a sealing cover plate, a seamless steel pipe, elbows and flanges, the sealing cover plate is a circular member made of a steel plate, the seamless steel pipe is welded to the upper side of the center of the sealing cover plate, the elbows are symmetrically arranged around the seamless pipe in a cross shape and are welded to the seamless steel pipe and the sealing cover plate, and the flanges are welded to the top end of the seamless pipe.

[0008] Specifically, the lower load-bearing seat is provided with a lower sealing cover plate, a seamless steel pipe and an elbow plate, the lower sealing cover plate is a circular member made of a steel plate, the seamless steel pipe is welded to the lower side of the center of the sealing cover plate, the elbow plate is symmetrically arranged in a cross shape around the seamless pipe and is welded with the seamless steel pipe and the sealing cover plate, and the seamless steel pipe is internally provided with a reinforcing plate.

[0009] Specifically, the water pump is a manual water pump.

[0010] Specifically, the water pipe is provided with a pressure gauge.

[0011] Since a sealed closed cavity is formed between the lower load-bearing seat and the butterfly plate under the pressure of the pressure mechanism, the cavity is filled with a pressure testing medium (generally water) by the water pump, and the sealed cavity is pressurized under the pressure outside the water pump, so as to check whether the butterfly valve leaks and whether it meets the specification requirements. The utility model can be repeatedly used, has wide coverage, improves the quality and efficiency of pressure testing, saves labor and material costs, and has strong practicality. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings described below only relate to some embodiments of the present application, but not limit the present application.

[0013] Fig. 1 is a general pressure testing device for butterfly valve

[0014] Fig. 2 is a support mechanism schematic diagram

[0015] Fig. 3 is a schematic diagram of the upper sealing cover

[0016] Fig. 4 is a schematic diagram of the lower load-bearing seat

[0017] Fig. 5 is a schematic diagram of the trolley

[0018] In the figure, 1 is a pressure mechanism; 2 is a support mechanism; 3 is an upper sealing cover; 4 is a lower load-bearing seat; 5 is a trolley; 6 is a top support a; 7 is a top support b; 8 is a top support plate; 9 is an edge support; 10 is an elbow plate; 11 is an inclined support; 12 is a bottom plate; 13 is a track square steel; 14 is a lower cushion block; 15 is an observation hole; 16 is a water inlet hole DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be described clearly and completely below in combination with the drawings of the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all the embodiments. Based on the described embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.

[0020] Unless otherwise defined, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0021] As shown in Figure 1, the technical scheme of the utility model is a kind of butterfly valve general pressure testing device, including pressure mechanism 1, support mechanism 2, pressure mechanism 1 is fixed in support mechanism 2 top, butterfly valve compression component, the butterfly valve compression component includes upper sealing cover 3, lower bearing seat 4, the upper sealing cover 3 is fixed in the output end of pressure mechanism, to seal butterfly valve upper end opening, the lower bearing seat 4 is placed on the ground to carry butterfly valve and seal butterfly valve lower end opening, the upper sealing cover 3 is provided with observation hole 15, the lower bearing seat 4 is provided with water inlet hole 16, a water pipe is connected water inlet hole 16 after being sealed by sealing element water inlet hole 16, connect with a water pump. The support mechanism 2 is the whole device base component, support the pressure mechanism 1 and fixed on the output end of pressure mechanism upper sealing cover 3, the butterfly valve to be tested is placed between upper sealing cover 3 and lower bearing seat 4, under the pressure of pressure mechanism 1, upper sealing cover 3 and lower bearing seat 4 are tightly pressed on the sealing rubber ring of the flange of the butterfly valve to be tested upper and lower ends, then close the valve, inject test pressure medium (generally water) into the sealed cavity between butterfly plate and lower bearing seat 4 to fill the cavity, and under the pressure of water pump, the sealed cavity is pressurized to check whether the butterfly valve leaks and whether it meets the specification requirements. Observation hole 15 is opened on the upper sealing cover, for observing the leakage condition of butterfly valve pressure test, lower bearing seat is provided with water inlet hole 16 for water inlet and outlet, and water pump provides power and adjusts the pressure size.

[0022] Specifically, as shown in Figure 2, the pressure mechanism 1 is a jack, and the support mechanism 2 is a rectangular frame formed by welding a bottom plate 12, two side supports 9 and a top support having a through hole for the piston of the jack to pass in and out, the top support includes a top support a (6), a top support b (7) and a top support plate (8), the upper sealing cover 3 is fixedly connected with the end of the piston of the jack, and the cylinder of the jack is fixedly connected with the top support of the support mechanism. The pressure mechanism 1 is a jack, which is convenient to provide sufficient pressure and control the force, and the support mechanism 2 is a rectangular frame formed by welding a bottom plate 12, two side supports 9 and a top support having a through hole for the piston of the jack to pass in and out, which not only provides sufficient support strength, but also is simple to manufacture and saves materials.

[0023] Specifically, as shown in Figure 2, the support mechanism bottom plate 12 and the side support 9 are connected with an inclined support 11, and the side support 9 is provided with an elbow plate 10, and the inclined support 11 and the elbow plate 10 further improve the support strength.

[0024] Specifically, as shown in Figure 3 The upper sealing cover 3 is provided with a sealing cover plate, a seamless steel pipe, an elbow plate and a flange. The sealing cover plate is a circular member made of a steel plate. The seamless steel pipe is welded to the upper side of the center of the sealing cover plate. The elbow plate is symmetrically arranged in a cross shape around the seamless pipe and is welded to the seamless steel pipe and the sealing cover plate. The flange is welded to the top end of the seamless pipe. The seamless steel pipe welded to the center of the sealing cover plate is used to support the connecting flange of the pressure mechanism and to transmit pressure to the upper sealing cover plate to achieve the function of pressing the butterfly valve. The elbow plate symmetrically arranged in a cross shape around the seamless pipe and welded to the seamless steel pipe and the sealing cover plate is used to increase the rigidity of the sealing cover plate to avoid deformation during pressure test. The flange welded to the top end of the seamless pipe is a connecting component between the pressure mechanism and the upper sealing cover plate to achieve the fixed connection of the pressure mechanism and the upper sealing cover plate.

[0025] Specifically, as shown in FIG. 4, the lower bearing seat 4 is provided with a lower sealing cover plate, a seamless steel pipe and an elbow plate. The lower sealing cover plate is a circular member made of a steel plate. The seamless steel pipe is welded to the lower side of the center of the sealing cover plate. The elbow plate is symmetrically arranged in a cross shape around the seamless pipe and is welded to the seamless steel pipe and the sealing cover plate. The seamless steel pipe is internally provided with a reinforcing plate. In order to ensure that the lower bearing seat has sufficient strength, the lower sealing cover plate is welded with a support seamless steel pipe at the bottom, the steel pipe is welded with a reinforcing elbow plate around the periphery, and the inside is welded with a reinforcing plate.

[0026] Specifically, as shown in FIGS. 2 and 5, the bottom plate 12 is provided with a track square steel 13 and a lower cushion block 14, and further comprises a trolley matched with the track square steel. The trolley is provided with an upper cushion block matched with the lower cushion block. The trolley bears the combination of the butterfly valve and the lower bearing seat 4 and sends the combination into the jack base for pressure test. After the pressure test is completed, the combination is sent out of the jack base to assist in completing the entire pressure test work, thereby reducing the manual carrying strength. The lower cushion block 14 is used in conjunction with the upper cushion block of the butterfly valve conveying device to bear the pressure test load by the cushion block instead of the casters of the conveying device during the pressure test of the butterfly valve.

[0027] Specifically, the water pump is a manual water pump, which can conveniently control the water pressure.

[0028] Specifically, the water pipe is provided with a pressure gauge, which can further quantitatively observe the pressure.

[0029] The above description is only exemplary embodiments of the present application, and is not intended to limit the protection scope of the present application, which is determined by the appended claims.

Claims

1. A general-purpose pressure testing device for butterfly valves, characterized in that The utility model provides a butterfly valve sealing device, including pressure mechanism (1), support mechanism (2), pressure mechanism (1) is fixed on the top of support mechanism (2), butterfly valve compression component, butterfly valve compression component includes upper sealing cover (3), lower bearing seat (4), upper sealing cover (3) is fixed on the output end of pressure mechanism (1), is used to seal butterfly valve upper end opening, lower bearing seat (4) is placed on the ground to bear butterfly valve and seal butterfly valve lower end opening, upper sealing cover (3) is equipped with observation hole (15), lower bearing seat is equipped with water inlet hole (16), one end of a water pipe is connected water inlet hole (16) is sealed water inlet hole (16) by sealing element, and the other end is connected with a water pump, pressure mechanism (1) is a jack, support mechanism (2) is the rectangular frame of the top support welding of a bottom plate (12), two side supports (9) with the water inlet hole of a jack piston, upper sealing cover (3) is fixedly connected with the end of jack piston, and jack cylinder is fixedly connected with top support of support mechanism, The bottom plate is provided with rail square steel (13) and lower cushion block (14), and further includes a trolley matched with the rail square steel, and the trolley is provided with upper cushion block matched with the lower cushion block.

2. The universal pressure testing device for butterfly valves according to claim 1, characterized in that The bottom plate (12) and the side support (9) of the support mechanism are connected with inclined support (11), and the side support (9) is provided with elbow plate (10).

3. The universal pressure testing device for butterfly valves according to claim 1, characterized in that The upper sealing cover (3) is provided with sealing cover plate, seamless steel pipe, elbow plate and flange, the sealing cover plate is a circular member made of steel plate, the seamless steel pipe is welded on the upper side of the center of the sealing cover plate, the elbow plate is symmetrically arranged around the seamless pipe in cross shape and is welded with the seamless steel pipe and the sealing cover plate, and the flange is welded on the top end of the seamless pipe.

4. The universal pressure testing device for butterfly valves according to claim 3, wherein, The lower bearing seat (4) is provided with lower sealing cover plate, seamless steel pipe and elbow plate, the lower sealing cover plate is a circular member made of steel plate, the seamless steel pipe is welded on the lower side of the center of the sealing cover plate, the elbow plate is symmetrically arranged around the seamless pipe in cross shape and is welded with the seamless steel pipe and the sealing cover plate, and the seamless steel pipe is provided with reinforcing plate.

5. The universal pressure testing device for butterfly valves according to claim 1, characterized in that, The water pump is a manual water pump.

6. The universal pressure testing device for butterfly valves according to claim 1, characterized in that, The water pipe is provided with pressure gauge.

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