CN204435330U - The interim ecological bleeder pipe plugging system of a kind of water power hydraulic engineering - Google Patents

Abstract

The utility model discloses a temporary ecological discharge pipe sealing system for hydropower and water conservancy projects, which mainly includes an ecological discharge pipe, a tapered pipe, a three-way pipe, an imported horizontal pipe, a vertical pipe, a sealing hammer and the like. A tapered pipe with gradually increasing diameter is connected to the top of the vertical section of the ecological discharge pipe, and a three-way pipe is connected to the top of the tapered pipe. The three-way pipe is connected with the inlet horizontal pipe and the vertical pipe. Shaped pipes, three-way pipes, imported horizontal pipes and vertical pipes are pre-buried in the building, the vertical pipes lead to the top of the building, and the upper part of the vertical pipes is hung with a plugging hammer through the traction cable. The lower part of the plugging hammer is connected to the The shape of the tapered pipe matches, the upper half of the plugging hammer matches the inner diameter of the vertical pipe, and the lower half of the plugging hammer can sink into the tapered pipe under the action of gravity to seal the top of the ecological discharge pipe. The plugging hammer is a metal hammer wrapped with a layer of water-stop rubber. The utility model utilizes the self-weight of the plugging hammer and the water pressure to realize the plugging without extra power. The cost is cheap, the construction is convenient, the operation is simple, and the plugging safety is high.

Description

A temporary ecological discharge pipe plugging system for hydropower and water conservancy projects

technical field

The utility model relates to a plugging project for a temporary ecological discharge pipe of a hydropower and water conservancy project, in particular to a plugging system applied to a temporary ecological discharge pipe during the water storage period of a lower sluice of a hydropower and water conservancy project.

Background technique

The ecological discharge pipe during the water storage period of the lower sluice of the hydropower and water conservancy project is a temporary discharge ecological flow facility, which has the characteristics of large flow rate, short operation time and high sealing head. At present, the existing ecological discharge pipe sealing method is mainly through The pre-embedded cable remotely operates the electric valve for plugging. This method has the following problems.

(1) Due to the large flow rate of the temporary ecological discharge pipe and the high plugging head, there are few electric valves that meet the design requirements, and the selection of valves is difficult, and the electric valves need to lay ventilation pipes and cables above the water surface, and the construction procedures are complicated. The amount of work is large.

(2) The valve body and cables of the electric valve are buried in the concrete structure or surrounding rock, and generally run 2-4 years after the installation is completed. Due to the lack of maintenance conditions and the influence of the environment, they are prone to damage. Low reliability and guarantee rate.

(3) When the valve is closed, the gravel carried by the water may block the valve equipment, which will affect the sealing of the temporary ecological discharge pipe.

Utility model content

The technical problem to be solved by the utility model is to provide a temporary ecological discharge pipe plugging system for hydropower and water conservancy projects that does not require additional power, is convenient in construction, simple in operation, and high in plugging safety.

In order to solve the above technical problems, the technical solution adopted by the utility model is: a temporary ecological discharge pipe sealing system for hydropower and water conservancy projects, a tapered pipe with gradually increasing diameter is connected to the top of the vertical section of the ecological discharge pipe, Connect the tee pipe to the top of the conical pipe, the tee pipe is connected with the imported horizontal pipe and vertical pipe, the ecological discharge pipe, the tapered pipe, the tee pipe, the imported horizontal pipe and the vertical pipe are embedded in the building, and the vertical The pipe leads to the top of the building, and a plugging hammer is suspended in the upper nozzle of the vertical pipe through a traction cable. Matching, the lower half of the plugging hammer can sink into the conical pipe under the action of gravity to seal the top of the ecological discharge pipe.

The plugging hammer is a metal hammer wrapped with a layer of water-stop rubber.

The water-stop rubber of the plugging hammer is anchored on the top of the metal hammer.

The beneficial effect of the utility model is that: the self-weight of the plugging hammer and the water pressure are used to realize the plugging without extra power. The cost is cheap, the construction is convenient, the operation is simple, and the plugging safety is high.

Description of drawings

Fig. 1 is a structural schematic diagram of a temporary ecological release pipe plugging system for a hydropower and water conservancy project of the present invention.

Fig. 2 is a sectional view of the plugging hammer of the present utility model.

Fig. 3 is a schematic diagram of the utility model after plugging.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail:

As shown in Figure 1, the temporary ecological discharge pipe plugging system of the hydropower and water conservancy project of the present utility model is connected with a tapered pipe 2 with a gradually increasing diameter at the top of the vertical section of the ecological discharge pipe 1, and the taper pipe 2 The top of the top is connected with the tee pipe 8, the tee pipe 8 is connected with the inlet horizontal pipe 3 and the vertical pipe 4, the ecological discharge pipe 1, the tapered pipe 2, the tee pipe 8, the inlet horizontal pipe 3 and the vertical pipe 4 are pre-buried in In the building 7, the vertical pipe 4 leads to the top of the building, and a sealing hammer 5 is suspended in the upper nozzle of the vertical pipe 4 by a traction cable 6. The lower half of the sealing hammer 5 matches the shape of the tapered pipe 2, and the sealing The upper half of the plugging hammer matches the inner diameter of the vertical pipe 4, and the lower half of the plugging hammer 5 can sink into the conical pipe 2 under the action of gravity to seal the top of the ecological discharge pipe 1.

As shown in FIG. 2 , the plugging hammer 5 is a metal hammer wrapped with a layer of water-stop rubber 9 . The water-stop rubber 9 of the plugging hammer 5 is anchored on the top of the metal hammer.

As shown in Figures 1 and 3, before the ecological discharge pipe 1 is blocked, the plugging hammer 5 is suspended in the upper nozzle of the vertical pipe by the traction cable 6, and the upper end of the traction cable is fixed above the plugging water level; the ecological discharge pipe 1 is blocked , loosen the traction cable 6, and the plugging hammer 5 sinks to the conical pipe 2 under the action of gravity, and squeezes and compacts with the pipe wall under the action of gravity and water pressure, so as to realize the plugging of the ecological discharge pipe.

The embodiments described above are only used to illustrate the technical ideas and characteristics of the present utility model, and its purpose is to enable those skilled in the art to understand the content of the present utility model and implement it accordingly, and the present utility model cannot be limited only by this embodiment. The patent scope of the utility model, that is, all equivalent changes or modifications made to the spirit disclosed in the utility model still fall within the patent scope of the utility model.

Claims (3)

1. the interim ecological bleeder pipe plugging system of water power hydraulic engineering, it is characterized in that, the conical pipe (2) that Diameter Gradual Change increases is connected with on the top of the vertical section of ecological bleeder pipe (1), on top connecting tee pipe (8) of conical pipe (2), tee piece (8) is communicated with vertical tube (4) with inlet horizontal tube (3), ecological bleeder pipe (1), conical pipe (2), tee piece (8), inlet horizontal tube (3) and vertical tube (4) are embedded in building (7) in advance, vertical tube (4) passes to building top, shutoff hammer (5) is hung with by drag cable (6) in vertical tube (4) upper orifice, the shutoff hammer Lower Half of (5) and the mating shapes of conical pipe (2), the first half of shutoff hammer and the internal diameter of vertical tube (4) match, shutoff hammer (5) under gravity Lower Half can be sink in conical pipe (2), seal the top of ecological bleeder pipe (1).

2. the interim ecological bleeder pipe plugging system of water power hydraulic engineering according to claim 1, is characterized in that, described shutoff hammer (5) is metal hammer, and outer wrap has one deck watertight rubber (9).

3. the interim ecological bleeder pipe plugging system of water power hydraulic engineering according to claim 2, is characterized in that, the watertight rubber (9) of described shutoff hammer (5) is anchored at metal peen.