CN215329766U

CN215329766U - Water supply installation for a hydroelectric power station

Info

Publication number: CN215329766U
Application number: CN202120744142.4U
Authority: CN
Inventors: 易南平; 刘朝明; 杨皓月
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-04-13
Filing date: 2021-04-13
Publication date: 2021-12-28
Anticipated expiration: 2031-04-13

Abstract

The utility model relates to a water supply installation for a hydroelectric power station. The water receiving pool is covered by the slag filtering plate which is positioned at the water receiving pool opening, and the water delivery channel is communicated with the bottom of the water receiving pool. The utility model can generate electricity normally in the condition that a water source carries a large amount of small gravel.

Description

Water supply installation for a hydroelectric power station

Technical Field

The utility model relates to a facility device of a hydroelectric power station, in particular to a water supply facility for providing a water source for the hydroelectric power station.

Background

The water supply facility of the existing small hydroelectric power station comprises a water storage pool, an incoming water channel, a water delivery channel and an overflow channel, wherein the incoming water channel, the water delivery channel and the overflow channel are communicated with the water storage pool, and a water source flows into the water storage pool from the incoming water channel and flows to a hydroelectric generating set through the water delivery channel to generate electricity.

Patent application No. 2017211941690 discloses a facility is supplied with to water source of power station, and this kind of facility is supplied with to water source can clear away the floater in the water receiving pond by oneself, does not need the manual work to clear up the floater at any time. However, if the water source supply facility is used in areas with many debris flows, such as Sichuan and Gansu provinces, the water flow from the water channel carries a large amount of small gravel which is flushed to and deposited in the water storage pool, so that the water storage pool cannot normally store water, and the normal power generation of the hydropower station is affected.

Disclosure of Invention

The utility model aims to provide a water supply facility of a hydroelectric power station, which can normally generate electricity under the condition that a water source carries a large amount of small gravel.

The water supply facility of the hydroelectric power station comprises a water receiving pool, an incoming water channel, a water delivery channel, a water abandoning channel and a slag filtering plate, wherein the slag filtering plate is provided with water leakage holes and is positioned at the port of the water receiving pool to cover the water receiving pool and connect the incoming water channel with the water abandoning channel, the slag filtering plate is higher close to the incoming water channel than the water abandoning channel so as to enable the slag filtering plate to be inclined, and the water delivery channel is communicated with the bottom of the water receiving pool.

The water delivery channel is a hidden channel at the joint with the water receiving pool, and a gate capable of cutting off the water delivery channel is arranged at the hidden channel.

The residue filtering plate is supported at the bottom of the water receiving pool through a support frame.

The water source with small crushed stones flows to the slag filtering plate from the water inlet channel, one part of water flows to the water receiving pool through the water leakage holes on the slag filtering plate and then flows to the hydroelectric generating set through the water delivery channel to generate electricity, and the other part of water flows to the water discarding channel through the slag filtering plate and takes away the small crushed stones carried in the water source. When the water source flow is small, part of small crushed stones may be accumulated on the slag filtering plate, when the small crushed stones are accumulated to a certain amount, the gate on the hidden channel of the water delivery channel can be closed, the water delivery channel is closed, the water in the water receiving pool overflows from the water leakage holes on the slag filtering plate after being fully stored, and in addition, the small crushed stones on the slag filtering plate are flushed to the water drainage channel to be taken away by the impact of the water flow flowing out from the water delivery channel.

The water receiving tank is a transition containing channel for allowing water flow after the water source carrying small gravel is filtered to flow into the water delivery channel instead of the existing water storage tank for storing water, and the water discarding channel is a part where redundant water and small gravel flow through and is not used for draining water after the water storage tank is full of water.

The inclined slag filtering plate covers the water receiving pool, so that small crushed stones carried in a water source are flushed to the water discarding channel by water flow and cannot enter the water receiving pool in the operation process of the hydropower station, and the normal power generation of the water turbine generator set is ensured.

Drawings

Fig. 1 is a schematic top view of a water supply installation of a hydroelectric power plant according to the utility model.

Fig. 2 is a cross-sectional view taken along line a-a of fig. 1.

Fig. 3 is a cross-sectional view taken along line B-B of fig. 1.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1, 2 and 3, the water supply facility of the hydroelectric power station comprises a water receiving pool 7, an incoming water channel 1, a water delivery channel 6, a waste water channel 4 and a slag filtering plate 3, wherein the slag filtering plate 3 is provided with a plurality of water leakage holes 2, the slag filtering plate 3 is supported at the bottom of the water receiving pool 7 through a support frame (not shown in the figure), the slag filtering plate 3 is positioned at the water receiving pool port to cover the water receiving pool 7, the incoming water channel 1 is connected with the waste water channel 4, and the slag filtering plate 3 is higher near the incoming water channel 1 than near the waste water channel 4, so that the slag filtering plate 3 is inclined, and the flowing of water flow and the movement of small crushed stones on the slag filtering plate 3 are facilitated. The water delivery channel 6 is communicated with the bottom of the water receiving pool 7, a closed channel 8 is arranged at the joint of the water delivery channel 6 and the water receiving pool 7, and a gate 5 capable of cutting off the water delivery channel 6 is arranged at the closed channel 8.

The water source with small broken stones flows to the slag filtering plate 3 from the water inlet channel 1, one part of water flows to the water receiving tank 7 through the water leakage holes 2 on the slag filtering plate 3 and then flows to the hydroelectric generating set through the water delivery channel 6 to generate electricity, and the other part of water flows to the waste water channel 4 through the slag filtering plate 3 and takes away the small broken stones carried in the water source. When the water source flow is small, part of small crushed stones may be accumulated on the slag filtering plate 3, when the small crushed stones are accumulated to a certain amount, the gate 5 on the hidden channel 8 of the water delivery channel 6 can be closed, the water delivery channel 6 is closed, water in the water receiving tank 7 overflows from the water leakage holes 2 on the slag filtering plate 3 after being fully stored, and in addition, the small crushed stones on the slag filtering plate 3 are flushed to the water drainage channel 4 by the impact of the water flow flowing out from the water delivery channel 1.

Claims

1. The utility model provides a hydroelectric power station's water supply facility, includes water receiving pond (7), water channel (1), water delivery channel (6) and abandons water channel (4), its characterized in that: the water receiving pool is covered by the residue filtering plate (3) which is positioned at the water receiving pool opening and connects the incoming water channel with the water abandoning channel, and the residue filtering plate is higher at the position close to the incoming water channel than the position close to the water abandoning channel, so that the residue filtering plate is inclined, and the water conveying channel is communicated with the bottom of the water receiving pool.

2. Water supply installation of a hydroelectric power plant according to claim 1, characterized in that: the water delivery channel (6) is a hidden channel (8) at the joint with the water receiving pool (7), and a gate (5) capable of cutting off the water delivery channel is arranged at the hidden channel.

3. Water supply installation of a hydroelectric power plant according to claim 1, characterized in that: the slag filtering plate (3) is supported at the bottom of the water receiving pool (7) through a support frame.