CN220649914U

CN220649914U - Hydropower station valve detection device

Info

Publication number: CN220649914U
Application number: CN202322309887.XU
Authority: CN
Inventors: 陈强; 刘喜
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-08-28
Filing date: 2023-08-28
Publication date: 2024-03-22
Anticipated expiration: 2033-08-28

Abstract

The utility model belongs to the technical field of valve detection, and particularly relates to a hydropower station valve detection device. The technology includes the casing at no top, and the level is provided with the holder in the casing, and the holder includes first fly leaf, and first fly leaf below level is provided with the second fly leaf, and the level is fixed with the fixed plate on the inside wall around the casing, and the fixed plate bottom is vertical to be fixed with the telescopic link, and the lower extreme of telescopic link is fixed on first fly leaf, be provided with locking assembly on two fly leaves, wear to be equipped with the intake pipe on the first fly leaf, the level is installed the air pump on the first fly leaf, communicates through the connecting pipe between the end of giving vent to anger of air pump and the intake pipe, wears to be equipped with the gas tube on the second fly leaf, is provided with the pneumatic module that makes the valve that awaits measuring in the gas tube and forms atmospheric pressure. According to the utility model, under the action of the air pressure component, air pressure is formed in the valve to be tested by using air filled by the air pump, and whether the air tightness of the valve is qualified is detected in a short time.

Description

Hydropower station valve detection device

Technical Field

The utility model belongs to the technical field of valve detection, and particularly relates to a hydropower station valve detection device.

Background

The hydropower station is a factory for converting potential energy and kinetic energy of water into electric energy, the basic production process is that water is guided from the high position of a river or other reservoirs, the hydraulic turbine is driven to rotate by utilizing the pressure or flow velocity of the water to convert the gravitational potential energy and the kinetic energy into mechanical energy, then the hydraulic turbine drives the generator to rotate, the mechanical energy is converted into electric energy, the valve is widely applied to the hydropower station as an important accessory for controlling the opening and closing of a drainage pipeline, and the detection of the valve is very important correspondingly.

At present, detect the gas tightness of valve through valve detection device, including two fixed plates, install the mounting panel between two fixed plates, the mounting panel bottom is fixed with the detector, during the use, with the valve centre gripping through two fixed plates, detects the valve through the detector, in the above-mentioned technique, when not ventilating in to the valve, only detect the valve through the detector, the check time is longer, the staff needs the numerical variation on the moment attention detector, working strength is great.

Disclosure of Invention

According to the defects in the prior art, the technical problems to be solved by the utility model are as follows: the utility model provides a hydropower station valve detection device, its simple structure detects the gas tightness of valve in the short time.

The hydropower station valve detection device comprises a shell without a top, a cavity for storing liquid is formed in the shell, a clamping piece for clamping a valve to be detected is horizontally arranged in the shell, the clamping piece comprises a first movable plate, a second movable plate is horizontally arranged below the first movable plate, the first movable plate and the second movable plate are in sliding fit with the inner side wall of the shell up and down, a fixed plate is horizontally fixed on the front inner side wall and the rear inner side wall of the shell, a telescopic rod is vertically fixed at the bottom of the fixed plate, the lower end of the telescopic rod is fixed on the first movable plate, a locking component for enabling the two movable plates to clamp the valve to be detected is arranged on the two movable plates, an air inlet pipe communicated with the valve to be detected is arranged on the first movable plate in a penetrating mode, an air pump is horizontally arranged on the first movable plate, an air outlet end of the air pump is communicated with the air inlet pipe through a connecting pipe, an air storage pipe communicated with the valve to be detected is arranged on the second movable plate in a penetrating mode, and an air pressure component for enabling air pressure to be formed in the valve to be detected is arranged in the air storage pipe.

Further, the air pressure assembly comprises a piston, the piston is arranged in the air storage pipe in a sealing mode, the bottom of the air storage pipe is connected with an air outlet pipe, a one-way valve for preventing liquid from entering the air outlet pipe is arranged on the air outlet pipe, a spring is arranged between the bottom of the piston and the inner bottom of the air storage pipe, and the piston is located at the upper end of the air storage pipe in a natural state of the spring.

Further, the locking component comprises a screw rod, the screw rod is fixed at the top of the second movable plate, a through hole for the screw rod to penetrate out is formed in the first movable plate, and a nut in threaded fit with the screw rod above the first movable plate is sleeved on the screw rod.

Further, through grooves which are vertically communicated are formed in the first movable plate and the second movable plate, rubber blocks used for sealing an outlet of the valve to be tested are fixed in the through grooves, through holes which are vertically communicated are formed in the rubber blocks, and the air storage pipe and the air inlet pipe are arranged in the rubber blocks in a penetrating mode.

Further, a control valve is arranged on the connecting pipe.

Compared with the prior art, the utility model has the following beneficial effects:

according to the utility model, the valve to be tested is clamped between the two movable plates under the action of the locking component, air is filled into the valve to be tested through the air pump, under the action of the air pressure component, the air pressure is formed in the valve to be tested by using the air filled by the air pump, so that the air pressure is kept in the valve to be tested, the valve to be tested is placed into liquid, whether air bubbles are generated on the surface of the valve is observed, and whether the air tightness of the valve is qualified is detected in a short time.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a top view of FIG. 1;

the names of the components in the figure are as follows: 1. the device comprises a shell 2, a fixed plate 3, a telescopic rod 4, an air pump 5, a connecting pipe 6, a control valve 7, an air inlet pipe 8, a screw 9, a nut 10, a first movable plate 11, a second movable plate 12, a rubber block 13, an air storage pipe 14, a spring 15, a piston 16, an air outlet pipe 17 and a one-way valve.

Detailed Description

The present utility model is further illustrated by the following examples, which are not intended to be limiting, but any modifications, equivalents, improvements, etc. within the spirit and principles of the present utility model are intended to be included within the scope of the present utility model.

Example 1

The hydropower station valve detection device of the embodiment, as shown in fig. 1 and 2, comprises a shell 1 without a top, wherein a cavity for storing liquid is arranged in the shell 1, liquid, generally clear water, is stored in the shell 1, the valve is placed in the liquid, and whether the air tightness of the valve to be detected is unqualified is judged by observing whether bubbles exist in the clear water or not;

the clamping piece for clamping the valve to be detected is horizontally arranged in the shell 1, the clamping piece comprises a first movable plate 10, a second movable plate 11 is horizontally arranged below the first movable plate 10, the first movable plate 10 and the second movable plate 11 are in up-down sliding fit with the inner side wall of the shell 1, as shown in figure 1, the first movable plate 10 and the second movable plate 11 are horizontally arranged in the shell 1, the two movable plates are vertically arranged in parallel, the width of the two movable plates is smaller than the length of the shell 1, so that liquid below the second movable plate 11 can flow between the two movable plates, and the valve to be detected can be completely immersed in the liquid;

the front and rear inner side walls of the shell 1 are horizontally fixed with a fixing plate 2, as shown in fig. 2, the front end of the fixing plate 2 is fixed on the front inner side wall of the shell 1, and the rear end of the fixing plate 2 is fixed on the rear inner side wall of the shell 1;

the bottom of the fixed plate 2 is vertically fixed with a telescopic rod 3, the lower end of the telescopic rod 3 is fixed on the first movable plate 10, the upper end of the telescopic rod 3 is fixed at the bottom of the fixed plate 2, the lower end is fixed at the top of the first movable plate 10, and the valve is driven to be immersed in or taken out of liquid through the extension and shortening of the telescopic rod 3;

the locking components are arranged on the two movable plates, so that the two movable plates clamp the valve to be detected, the valve to be detected is clamped and fixed between the two movable plates through the locking components, the valves with different sizes can be clamped conveniently, and meanwhile, the air leakage at the contact part between the valve outlet and the movable plates is avoided, so that the detection fails;

the first movable plate 10 is provided with an air inlet pipe 7 which is communicated with a valve to be detected in a penetrating way, the first movable plate 10 is provided with a through hole which is communicated up and down, the air inlet pipe 7 is vertically arranged in the through hole in a penetrating way, the upper end of the air inlet pipe 7 is blocked, and the lower end of the air inlet pipe 7 is communicated with the valve to be detected in a connecting way;

the first movable plate 10 is horizontally provided with an air pump 4, the air outlet end of the air pump 4 is communicated with the air inlet pipe 7 through a connecting pipe 5, and the air pump 4 charges air into the air inlet pipe 7 through the connecting pipe 5;

the second movable plate 11 is provided with a through hole which is vertically communicated with the valve to be tested, the gas storage pipe 13 is vertically arranged in the through hole in a penetrating way, the lower end of the gas storage pipe 13 is sealed, and the upper end of the gas storage pipe 13 is communicated with the valve to be tested;

the air pressure component which enables air pressure to be formed in the valve to be detected is arranged in the air storage pipe 13, air filled in the air pump 4 enters the air storage pipe 13, air pressure is formed in the valve to be detected through the air pressure component, the valve to be detected is then introduced into water, whether air bubbles are generated in the water or not is observed, the valve is detected, and the time required by detection is shortened and the detection speed is accelerated by forming the air pressure in the valve to be detected.

When the air pump is used, the valve to be tested is placed between the two movable plates, the two movable plates are moved, the outlet of the valve is fully contacted with the two movable plates, the valve to be tested is clamped between the two movable plates through the locking assembly, air is filled into the connecting pipe 5 through the air pump 4, the air enters the air storage pipe 13 after passing through the air inlet pipe 7 and the valve to be tested, the air is filled into the valve to be tested to form air pressure through the air pressure assembly, the air pump 4 is closed, the air pressure is kept in the valve to be tested, the valve to be tested is placed in liquid through the extension of the telescopic rod 3, whether air bubbles are generated on the surface of the valve or not is observed, and whether the air tightness of the valve is qualified or not can be judged in a short time.

As shown in fig. 1, the first movable plate 10 and the second movable plate 11 are provided with through grooves which are vertically communicated, rubber blocks 12 for sealing the outlets of the valves to be tested are fixed in the through grooves, the outlets of the upper ends of the valves to be tested are tightly attached to the rubber blocks 12 on the first movable plate 10, the outlets of the lower ends of the valves to be tested are tightly attached to the rubber blocks 12 on the second movable plate 11, the sealing effect of the two movable plates at the outlets of the valves to be tested can be enhanced through the two rubber blocks 12, and the leakage of the contact parts between the outlets of the valves and the two movable plates during the detection of the valves is avoided, so that the detection failure is caused;

the rubber block 12 is provided with a through hole which is vertically communicated, the air storage pipe 13 and the air inlet pipe 7 are respectively arranged in the rubber block 12 in a penetrating manner, the air inlet pipe 7 is vertically arranged in the rubber block 12 on the first movable plate 10 in a penetrating manner, and the air storage pipe 13 is vertically arranged in the rubber block 12 on the second movable plate 11 in a penetrating manner.

As shown in fig. 1 and 2, the connecting pipe 5 is provided with a control valve 6, the control valve 6 controls the opening and closing of the connecting pipe 5, and after air pressure is formed in the valve to be detected, the control valve 6 is closed, so that the stability of the air pressure in the valve to be detected is maintained, and the detection of the valve is facilitated.

Example 2

The technology of this embodiment will be further described, as shown in fig. 1, the air pressure assembly includes a piston 15, the piston 15 is disposed in the air storage tube 13 in a sealing manner, and is in sliding fit with the inner side wall of the air storage tube 13, and the sliding fit between the piston 15 and the air storage tube 13 is similar to the fit between the injector piston and the injection tube;

the bottom of the gas storage tube 13 is connected with a gas outlet tube 16, the gas outlet tube 16 is arranged at the bottom of the gas storage tube 13, and the gas outlet tube 16 is connected and communicated with the gas storage tube 13;

the air outlet pipe 16 is provided with a one-way valve 17 for preventing liquid from entering the air outlet pipe 16, when the piston 15 moves downwards along the length direction of the air storage pipe 13, air below the piston 15 is discharged through the air outlet pipe 16, and liquid in the shell 1 is prevented from entering the air storage pipe 13 through the one-way valve 17;

a spring 14 is arranged between the bottom of the piston 15 and the bottom of the air storage tube 13, the upper end of the spring 14 is fixed at the bottom of the piston 15, and the lower end of the spring 14 is fixed at the inner bottom of the air storage tube 13;

under the natural state of the spring 14, the piston 15 is positioned at the upper end of the air storage pipe 13, the piston 15 is supported by the spring 14, when the air pressure above the piston 15 is increased, the piston 15 is pushed downwards, and after the spring 14 reaches the maximum contraction amount, the upward pushing force provided by the spring 14 is leveled with the downward pushing force provided by the air pressure, so that the position of the piston 15 is kept motionless, and the air pressure in the valve to be tested is kept.

When the embodiment is used, the air pump 4 is used for filling air into the air storage tube 13, the piston 15 is pushed to move downwards along the length direction of the air storage tube 13, after the spring 14 reaches the maximum contraction amount, the upward thrust provided by the spring 14 is equal to the downward thrust provided by the air pressure, the position of the piston 15 is kept motionless, the air pressure is kept in the valve to be detected, and the detection time of the valve is shortened.

In the air pressure assembly of the embodiment, the outer side wall of the piston 15 can be sleeved with the sealing ring, and the sealing effect between the outer side wall of the piston 15 and the inner side wall of the air storage tube 13 can be increased through the sealing ring, so that the valve can keep air pressure in the detection process.

Example 3

In this embodiment, as shown in fig. 1, the locking assembly includes a screw 8, where the screw 8 is fixed on the top of the second movable plate 11, a through hole for the screw 8 to pass through is formed in the first movable plate 10, and the upper end of the screw 8 passes through the through hole;

the screw rod 8 above the first movable plate 10 is sleeved with a nut 9 in threaded fit with the screw rod, and the distance from the nut 9 to the second movable plate 11 is reduced by screwing the nut 9, so that the valve to be tested is locked between the two movable plates.

In this embodiment, the locking assembly can adopt two sets of, set up respectively in the left and right sides both ends of two fly leaves, can lock two fly leaves in controlling two directions through two sets of locking assembly, reinforcing is to the fixed effect of survey valve.

Claims

1. The utility model provides a hydropower station valve detection device, including casing (1) at no top, be provided with the cavity that is used for depositing liquid in casing (1), the level is provided with the holder that is used for the centre gripping to wait to detect the valve in casing (1), the holder includes first fly leaf (10), first fly leaf (10) below level is provided with second fly leaf (11), first fly leaf (10) and second fly leaf (11) are sliding fit from top to bottom with the inside wall of casing (1), the level is fixed with fixed plate (2) on the inside wall around casing (1), fixed plate (2) bottom is vertical to be fixed with telescopic link (3), the lower extreme of telescopic link (3) is fixed on first fly leaf (10), its characterized in that: the two movable plates are provided with locking components for clamping the valve to be detected by the two movable plates, an air inlet pipe (7) communicated with the valve to be detected is arranged on the first movable plate (10) in a penetrating mode, an air pump (4) is horizontally arranged on the first movable plate (10), an air outlet end of the air pump (4) is communicated with the air inlet pipe (7) through a connecting pipe (5), an air storage pipe (13) communicated with the valve to be detected is arranged on the second movable plate (11) in a penetrating mode, and an air pressure component for enabling air pressure to be formed in the valve to be detected is arranged in the air storage pipe (13).

2. The hydropower station valve detection device according to claim 1, wherein: the air pressure assembly comprises a piston (15), the piston (15) is arranged in the air storage pipe (13) in a sealing mode, the bottom of the air storage pipe (13) is connected with an air outlet pipe (16), a one-way valve (17) for preventing liquid from entering the air outlet pipe (16) is arranged on the air outlet pipe (16), a spring (14) is arranged between the bottom of the piston (15) and the inner bottom of the air storage pipe (13), and the piston (15) is located at the upper end of the air storage pipe (13) in a natural state of the spring (14).

3. Hydropower station valve detection device according to claim 1 or 2, characterized in that: the locking assembly comprises a screw rod (8), the screw rod (8) is fixed at the top of a second movable plate (11), a through hole for the screw rod (8) to penetrate out is formed in a first movable plate (10), and a nut (9) in threaded fit with the screw rod (8) above the first movable plate (10) is sleeved on the screw rod (8).

4. The hydropower station valve detection device according to claim 1, wherein: through grooves which are vertically communicated are formed in the first movable plate (10) and the second movable plate (11), rubber blocks (12) used for sealing an outlet of a valve to be tested are fixed in the through grooves, through holes which are vertically communicated are formed in the rubber blocks (12), and the air storage pipe (13) and the air inlet pipe (7) are arranged in the rubber blocks (12) in a penetrating mode.

5. The hydropower station valve detection device according to claim 4, wherein: and a control valve (6) is arranged on the connecting pipe (5).