CN217810816U

CN217810816U - Interim plugging device of blow-down pipe in dam under reservoir retaining condition

Info

Publication number: CN217810816U
Application number: CN202221229825.7U
Authority: CN
Inventors: 郑盛锋; 吴家新; 方云; 李永捷; 蔡铭洁; 童文辉; 郑琳榕
Original assignee: Fujian Shuitou Survey And Design Co ltd
Current assignee: Fujian Shuitou Survey And Design Co ltd
Priority date: 2022-05-20
Filing date: 2022-05-20
Publication date: 2022-11-15
Anticipated expiration: 2032-05-20

Abstract

The utility model discloses an interim plugging device of blow-down pipe in dam under reservoir retaining condition, its structure includes steel sheet, rubber circle, couple, lifting means, the steel sheet is the major structure of device, and its size designs according to the size of blow-down pipe, the utility model discloses reinforcing apparatus is simple, effective, can realize under the reservoir retaining condition, can consolidate blow-down hole in the dam of dam and control gate valve, and when the specially adapted reservoir can't be let out, the circumstances that the blow-down hole was consolidated in gravity dam, the arch dam.

Description

Interim plugging device of blow-down pipe in dam under reservoir retaining condition

Technical Field

The utility model relates to an interim plugging device of blow-down pipe in dam under reservoir retaining condition belongs to hydraulic engineering reservoir dam and consolidates technical field.

Background

In the reinforcing of the reservoir dam of the hydraulic engineering, the reservoir is often emptied by utilizing the emptying hole of the dam as a construction condition for reinforcing the reservoir dam.

However, some reservoir dams cannot be emptied due to objective reasons, for example, in-warehouse cultivation, huge economic loss is caused when the reservoir is emptied, and emptying holes in the dam and a control gate valve behind the dam cannot be reinforced.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art existence, the utility model aims at providing an interim plugging device of blow-down pipe in dam under reservoir retaining condition to solve some reservoir dams and can't empty because of some objective reasons, breed in the storehouse, reservoir unloading will cause huge economic loss, causes the problem that the control gate valve can't carry out the reinforcement behind blow-down hole and the dam in the dam.

In order to achieve the above purpose, the present invention is realized by the following technical solution: the utility model provides an interim plugging device of blow-down pipe in dam under reservoir retaining condition, its structure includes steel sheet, rubber circle, couple, lifting means, the steel sheet is the major structure of device, and its size designs according to the size of blow-down pipe, if water pressure when great, can add welding primary and secondary roof beam in the steel sheet plane to the increase bears water pressure, the rubber circle is the stagnant water structure of device, and its size correspondence is customized according to the steel sheet diameter, the couple should welded fastening on the steel sheet, promotes the connection effect as plugging device.

Furthermore, the lifting device can be made of ropes, chains or other objects, one end of the lifting device is fixed on the hook, and the other end of the lifting device extends to the top of the dam and is connected with the opening and closing device.

Further, the steel plate material may be made of a cast iron plate or a stainless steel plate, and the thickness thereof is determined by the water pressure.

Further, the steel plate adopts a rubber ring water stop structure arranged on the periphery of the steel plate, and the diameter of the steel plate is larger than that of the emptying pipe.

Further, the hook may be made of a metal material such as steel bar or stainless steel.

Advantageous effects

The utility model relates to an interim plugging device of blow-down pipe in dam under reservoir retaining condition, this reinforcing apparatus is simple, effective, can realize under the reservoir retaining condition, can consolidate blow-down hole and control gate valve in the dam, and the specially adapted reservoir can't be emptied the time, the circumstances that blow-down hole was consolidated in gravity dam, the arch dam.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic view of an elevation structure of a temporary blocking device for an emptying pipe in a dam under a reservoir water storage condition according to the present invention;

fig. 2 is a schematic side view of the plugging device of the present invention;

fig. 3 is a schematic view of the plugging device of the present invention.

In the figure: a steel plate-1, a rubber ring-2, a hook-3 and a lifting device-4.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

Referring to fig. 1-3, the present invention provides a technical solution: a temporary blocking device for a vent pipe in a dam under a reservoir water storage condition structurally comprises a steel plate 1, a rubber ring 2, a hook 3 and a lifting device 4, wherein the steel plate 1 is a main body structure of the device, the size of the steel plate 1 is designed according to the size of the vent pipe, if the water pressure is large, a primary beam and a secondary beam can be welded on the plane of the steel plate 1 to increase the water pressure, the rubber ring 2 is a water stopping structure of the device, the size of the rubber ring is customized according to the diameter of the steel plate 1, the hook 3 is welded and fixed on the steel plate 1 to serve as a lifting connection function of the blocking device, the lifting device 4 can be made of ropes, chains or other objects, one end of the lifting device is fixed on the hook 3, the other end of the lifting device extends to the top of the dam to be connected with a starting and stopping device, the steel plate 1 can be made of a cast iron plate or a stainless steel plate, the thickness of the steel plate 1 is determined by the water pressure, the rubber ring 2 water stopping structure arranged on the periphery of the steel plate 1 is selected, the diameter of the steel plate should be larger than the diameter of the vent pipe, and the hook 3 can be made of a metal material such as a steel bar or stainless steel.

For example: before use, the plugging device is constructed by combining the attached drawings and the following implementation steps;

step 1: customizing a plugging device according to the size of the emptying pipe and the water pressure;

step 2: lowering the plugging device to an inlet of a vent pipe by using lifting equipment, and rechecking and confirming the installation position of the plugging device by a diver;

and 3, step 3: opening a vent pipe gate valve, and using the water pressure in the water reservoir to realize the plugging function of the plugging device;

and 4, step 4: and after the vent pipe and the gate valve are reinforced, recovering the plugging device by using lifting equipment.

The invention aims to realize temporary plugging of the inlet of the emptying pipe of the dam by utilizing the device under the condition of reservoir storage of the reservoir and provide conditions for reinforcing the emptying pipe and the control gate valve in the dam.

The utility model provides a problem be some reservoir dams can't empty because of some objective reasons, breed in the storehouse, reservoir unloading will cause huge economic loss, cause in the dam blow-down hole and dam behind the control gate valve can't consolidate, the utility model discloses a combination of each other of above-mentioned parts, this reinforcing apparatus is simple, effective, can realize under the reservoir retaining condition, consolidates blow-down hole and control gate valve in the dam, and specially adapted reservoir can't empty, the reinforced condition of blow-down hole in gravity dam, the arch dam.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.

Claims

1. The utility model provides a temporary plugging device of blow-down pipe in dam under reservoir retaining condition, its structure includes steel sheet (1), rubber circle (2), couple (3), lifting means (4), its characterized in that:

steel sheet (1) is the major structure of device, and its size designs according to the size of blow-down pipe, when water pressure is big, can add welding primary and secondary roof beam in steel sheet (1) plane to the increase bears water pressure, rubber ring (2) are the stagnant water structure of device, and its size correspondence is customized according to steel sheet (1) diameter, couple (3) should welded fastening on steel sheet (1), promote the connection effect as plugging device.

2. The temporary blocking device for the emptying pipe in the dam under the water storage condition of the reservoir as claimed in claim 1, is characterized in that: the lifting device (4) can be made of ropes and chains, one end of the lifting device is fixed on the hook (3), and the other end of the lifting device extends to the dam crest and is connected with the opening and closing device.

3. The temporary blocking device for the emptying pipe in the dam under the water storage condition of the reservoir as claimed in claim 1, is characterized in that: the steel plate (1) can be made of cast iron plates or stainless steel plates, and the thickness of the steel plate is determined by water pressure.

4. The temporary blocking device for the emptying pipe in the dam under the water storage condition of the reservoir as claimed in claim 1, is characterized in that: the steel plate (1) is provided with a water stop structure of a rubber ring (2) arranged on the periphery, and the diameter of the water stop structure is larger than that of the emptying pipe.

5. The temporary blocking device for the emptying pipe in the dam under the water storage condition of the reservoir as claimed in claim 1, is characterized in that: the hook (3) can be made of steel bars or stainless steel metal materials.