CN218508362U

CN218508362U - Water intake back-flushing blockage removal system

Info

Publication number: CN218508362U
Application number: CN202221603457.8U
Authority: CN
Inventors: 张现海; 袁文进
Original assignee: Sichuan Huaneng Jialingjiang Hydropower Co Ltd
Current assignee: Sichuan Huaneng Jialingjiang Hydropower Co Ltd
Priority date: 2022-06-24
Filing date: 2022-06-24
Publication date: 2023-02-21
Anticipated expiration: 2032-06-24

Abstract

The utility model discloses a clear stifled system of intake back flush relates to clear stifled technical field. The utility model comprises a water taking unit, which comprises a water taking grating, wherein the water taking grating is connected with the input end of a water taking pipeline, and the output end of the water taking pipeline is connected with a high-level water pool; and the blockage clearing unit is connected with the water taking unit in parallel and comprises a blockage clearing pipeline, the output end of the blockage clearing pipeline is connected with the water outlet door, and nozzles are uniformly arranged on the water outlet door. The utility model discloses beneficial effect does: the method has the advantages that a diver does not need to be asked to launch water to clean the blockage, the blockage is adsorbed to the water intake grid from one-way movement, water is supplied from the opposite direction of the blockage by utilizing the principle that the potential energy of the water is converted into kinetic energy, the blockage is easy to rush off the grid, the blockage can be cleaned at any time, and the labor cost is not increased; when the water outlet door is additionally arranged to take water, the water outlet door is opened and closed during blockage clearing, the multi-stage telescopic nozzles on the water outlet door are used for boosting pressure and correspond to the grid openings one by one, the water outlet speed is higher and more accurate, and the blockage clearing efficiency is higher.

Description

Water intake back-flushing blockage removal system

Technical Field

The utility model relates to a clear stifled technical field especially relates to a clear stifled system of intake backwash water.

Background

The hydropower station and the domestic water station on the big river of a river are many, no matter be the technical water of hydropower station, the fire control water intaking still the domestic water intaking of water intaking station, all be equipped with water intaking pipeline mouth in the river, the mouth of pipe all adopts metal grating, it is internal to prevent that the showy debris of aquatic from passing through the pipeline and entering into the water pump, cause destruction to the water pump impeller, but often have aquatic floater in the river, like pasture and water, the branch of trees, crops straw and domestic waste etc., can cause the jam to the water intaking pipeline mouth, reduce the water intaking efficiency of pump or can not get the water, influence unit technical water and domestic water, although from the angle of design, the water intaking height has been considered to the water intaking mouth position, floater suspension water layer section has been avoided, but the water intaking pump pipe mouth has certain suction, the time has been of a specified duration and will cause the jam. The common disposal method is that a diver manually cleans the sundries adsorbed to the nozzle. Because the manual diving cleaning has certain time limitation, the manual diving cleaning cannot be eliminated in time, and great influence is brought to the operation of hydropower station equipment and water for people's life.

The water intake is blocked, and general plugs are adsorbed on a grid of the water intake, so that the water intake cannot automatically fall off even if the water intake is stopped, and the problem can be solved only by manual diving cleaning. Because the underwater operation belongs to a special work type, the underwater operation personnel needs to be contacted in advance, the maneuverability is poor, the time is long, and the efficiency is low. Particularly in the season of rich water, the river water has more floating objects, the blocking frequency is high, the influence is serious, and the cleaning cost is increased by a large amount.

SUMMERY OF THE UTILITY MODEL

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract of the specification and the title of the application to avoid obscuring the purpose of this section, the abstract of the specification and the title of the application, and such simplifications or omissions are not intended to limit the scope of the invention.

The present invention has been made in view of the above and/or other problems occurring in the prior art.

Therefore, the utility model aims to solve the problem that need change into automatic clearance intake plug with the help of artifical clearance intake plug.

In order to solve the technical problem, the utility model provides a following technical scheme: a back flushing block removing system for a water intake comprises a water intake unit and a block removing unit; the water taking unit comprises a water taking grating, the water taking grating is connected with the input end of a water taking pipeline, and the output end of the water taking pipeline is connected with a high-level water pool; and the blockage clearing unit is connected with the water taking unit in parallel and comprises a blockage clearing pipeline, the output end of the blockage clearing pipeline is connected with the water outlet door, and nozzles are uniformly arranged on the water outlet door.

As a preferred scheme of clear stifled system of intake back flush, wherein: a plurality of square grid openings are uniformly formed in the water taking grid and are located below the river surface.

As a preferred scheme of clear stifled system of intake back flush, wherein: the height difference between the high-level water pool and the water taking grating is more than 40 meters.

As a preferred scheme of the clear stifled system of intake backwash water, wherein: the water intake pipeline sequentially flows through the water intake stop valve, the water intake pump and the water intake check valve.

As a preferred scheme of the clear stifled system of intake backwash water, wherein: and the high-level water tank is connected with the input end of the blockage removing pipeline.

As a preferred scheme of the clear stifled system of intake backwash water, wherein: and a blockage clearing stop valve is arranged on the blockage clearing pipeline.

As a preferred scheme of the clear stifled system of intake backwash water, wherein: the access point of the output end of the blockage clearing pipeline and the water taking pipeline is positioned between the water outlet door and the water taking stop valve.

As a preferred scheme of the clear stifled system of intake backwash water, wherein: a plurality of apopores have evenly been seted up to the outlet door, apopore and nozzle one-to-one, the delivery port and the grid mouth one-to-one of nozzle.

As a preferred scheme of the clear stifled system of intake backwash water, wherein: one end of the water outlet door is connected with the inner wall of the water taking pipeline through a hinge, and the inner wall of the water taking pipeline is symmetrically provided with limiting blocks.

As a preferred scheme of the clear stifled system of intake backwash water, wherein: the nozzle is of a multi-stage telescopic structure and comprises telescopic bodies, and the telescopic bodies are connected through springs.

The utility model discloses beneficial effect does:

the utility model does not need to ask a diver to launch water to clean the blockage, the blockage is adsorbed on the water intake grid from one-way movement, water is supplied from the opposite direction of the blockage by utilizing the principle that the potential energy of the water is converted into kinetic energy, the blockage is easy to wash off from the grid, the blockage can be cleaned at any time without increasing the labor cost; in addition, a water outlet door is added, the water outlet door is opened during water taking and closed during blockage clearing, the multi-stage telescopic nozzles on the water outlet door are used for boosting pressure and are in one-to-one correspondence with the grid openings, the water outlet speed is higher and more accurate, and the blockage clearing efficiency is higher.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor. Wherein:

fig. 1 is a schematic view of an integral connecting component of the back flushing block cleaning system of the water intake of the utility model;

fig. 2 is a schematic diagram of a water intake flow of the back flush water blockage removal system of the water intake of the present invention;

fig. 3 is a schematic diagram of the blockage removing flow of the back flushing blockage removing system for the water intake of the utility model;

fig. 4 is a schematic view of a water outlet door of the back flushing block removing system of the water intake of the utility model;

fig. 5 is a schematic view of the state of the water outlet door of the back flushing water blockage removing system for the water intake of the utility model when water is taken;

fig. 6 is a schematic diagram of the state of the water outlet door when the water intake back flushing blockage removing system of the utility model is used for removing blockage;

figure 7 is the utility model discloses a nozzle cross-sectional view of clear stifled system of intake back flush.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail with reference to the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways different from the specific details set forth herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Furthermore, the references herein to "one embodiment" or "an embodiment" refer to a particular feature, structure, or characteristic that may be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Example 1

Referring to fig. 1, fig. 2 and fig. 5, for the first embodiment of the present invention, this embodiment provides a reverse-flushing block-clearing system for water intake, which includes a water intake unit 100, which includes a water intake grille 101, the water intake grille 101 is connected to the input end of a water intake pipeline 102, and the output end of the water intake pipeline 102 is connected to a high-level water tank 103;

the blockage removing unit 200 is connected in parallel with the water taking unit 100 and comprises a blockage removing pipeline 201, the output end of the blockage removing pipeline 201 is connected with a water outlet door 202, and nozzles 202a are uniformly arranged on the water outlet door 202.

A plurality of square grid openings G are uniformly formed in the water taking grid 101 and are positioned below the river surface.

The height difference between the high-level water pool 103 and the water taking grille 101 is more than 40 meters.

The water intake pipe 102 passes through a water intake shutoff valve 102a, a water intake pump 102b, and a water intake check valve 102c in this order.

The high-level water tank 103 is connected with the input end of the blockage removing pipeline 201.

Normally, the intake, i.e. the intake grille 101, is located below the river surface, rather than near the river surface, avoiding the floating water layer section.

The water intake check valve 102a of the water intake pipe 102 is opened to start the water intake pump 102b to suck out the river water into the high-level water tank 103, and the water intake check valve 102c is provided between the water intake pump 102b and the high-level water tank 103, so that only the river water is allowed to flow from the water intake pump 102b to the high-level water tank 103, but not from the high-level water tank 103 to the water intake pump 102b.

In order to store enough gravitational potential energy, the height difference between the high-level water tank 103 and the water intake grille 101 is more than 40 meters, and the lift of the water intake pump 102b is also required to be more than 40 meters.

In the process of getting water, the outlet 202 is designed to be opened in one direction, which can be ensured by the hinge 202c between the outlet 202 and the water intake pipe 102, and can be opened under the positive impact of river water, namely, the outlet 202 and the water intake pipe 102 are in a parallel state, and one side of the outlet 202 can be attached to the inner wall of the water intake pipe 102, so that the water taking is not hindered.

Example 2

Referring to fig. 1, 3 and 6, a second embodiment of the present invention, which is different from the first embodiment, is: the blockage clearing pipeline 201 is provided with a blockage clearing stop valve 201a.

The access point of the output end of the unblocking line 201 and the water intake line 102 is located between the water outlet door 202 and the water intake shutoff valve 102 a.

The water outlet door 202 is evenly provided with a plurality of water outlet holes 202b, the water outlet holes 202b correspond to the nozzles 202a one by one, and the water outlets C of the nozzles 202a correspond to the grid openings G one by one.

One end of the water outlet door 202 is connected with the inner wall of the water intake pipeline 102 through a hinge 202c, and the inner wall of the water intake pipeline 102 is symmetrically provided with a limiting block 102d.

In the blockage clearing process, timing blockage clearing can be selected, and real-time blockage clearing can also be selected according to the output condition of the water taking pump, and the specific flow is as follows: stopping the water taking pump 102b, closing the water taking stop valve 102a, opening the blockage clearing stop valve 201a on the blockage clearing pipeline 201, so that the stored river water in the high-level water tank 103 flows down and reaches the water outlet door 202, the whole water outlet door 202 is closed because of the reverse flow, but the river water can still be sprayed out from the nozzle 202a on the water outlet door 202, and the water outlets C correspond to the grid openings G on the water taking grid 101 one by one, so that the blockage can fall off, and the blockage clearing process is completed.

Because the height difference between the high-level water tank 103 and the water intake grille 101 is more than 40 meters, the gravitational potential energy accumulated by the river water is enough to cause the blockage to fall off.

In the process of taking water, because the water outlet door 202 is designed to be opened in one direction, one end of the water outlet door 202 is connected with the inner wall of the water taking pipeline 102 through the hinge 202c, and the water outlet door 202 can be closed under the reverse impulse of the river water, namely the water outlet door 202 and the water taking pipeline 102 are in a vertical state, but the river water can still be sprayed out from the water outlet hole 202b and the nozzle 202a on the water outlet door 202, and the subsequent blockage removal is completed.

The stopper 102d can keep a certain stable state even when the water gate 202 is closed, i.e., under the action of reverse water flow.

Example 3

Referring to fig. 1 to 7, a third embodiment of the present invention is different from the first two embodiments: the water outlets C of the nozzles 202a correspond to the grid openings G one to one.

The nozzle 202a is a multi-stage telescopic structure, which includes a telescopic body 202a-1, and the telescopic body 202a-1 is connected with a spring 202 a-2.

The nozzle 202a is designed into a shape of multi-stage telescopic wide-in narrow-out, when reverse water flows through the nozzle, the water flow can overcome the elastic force of the spring 202a-2, so that the telescopic body 202a-1 is stretched, the aim of multi-stage gradual pressure rise is fulfilled, and the blockage removal is more efficient. When the nozzle is not used, the telescopic body 202a-1 naturally contracts under the action of the spring 202a-2, and the volume of the pipeline is not occupied.

In addition, the water outlets C of the nozzles 202a correspond to the grid openings G one by one, so that blockage clearing is more targeted, and blockage clearing is more efficient.

In conclusion, the complete work flow of the system is as follows:

when water is taken, a water taking stop valve 102a on the water taking pipeline 102 is opened, a water taking pump 102b is started to suck out river water, the river water firstly passes through a water taking grating 101 and the water taking pipeline 102 and is pumped into a high-level water tank 103, the water outlet door is in an open state at the moment, and a blockage clearing pipeline 201 is closed; when the blockage is cleared, the blockage clearing stop valve 201a on the blockage clearing pipeline 201 is opened, the water taking pump 102b is stopped, the water taking stop valve 102a is closed, the blockage clearing stop valve 201a on the blockage clearing pipeline 201 is opened, so that the stored river water in the high-level water tank 103 flows down and reaches the water outlet door 202, the water outlet door 202 is integrally closed due to the fact that the stored river water flows in the opposite direction, but the river water can still be sprayed out from the water outlet hole 202b and the nozzle 202a on the water outlet door 202, and the water outlet C corresponds to the grid openings G on the water taking grid 101 one by one, so that the blockage can fall off, and the blockage clearing process is completed.

It should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims

1. The utility model provides a clear stifled system of intake backwash water which characterized in that: comprises the steps of (a) preparing a substrate,

the water taking unit (100) comprises a water taking grating (101), wherein the water taking grating (101) is connected with the input end of a water taking pipeline (102), and the output end of the water taking pipeline (102) is connected with a high-level water pool (103);

the blockage clearing unit (200) is connected with the water taking unit (100) in parallel and comprises a blockage clearing pipeline (201), the output end of the blockage clearing pipeline (201) is connected with the water outlet door (202), and nozzles (202 a) are uniformly arranged on the water outlet door (202).

2. The intake backwash water block-clearing system according to claim 1, characterized in that: a plurality of square grid openings (G) are uniformly formed in the water taking grid (101), and are located below the river surface.

3. The intake backwash water block-clearing system according to claim 2, characterized in that: the height difference between the high-level water pool (103) and the water taking grille (101) is more than 40 meters.

4. The intake back-flushing unblocking system according to any one of claims 1-3, characterized in that: the water intake pipeline (102) sequentially flows through a water intake stop valve (102 a), a water intake pump (102 b) and a water intake check valve (102 c).

5. The intake back-flushing unblocking system according to claim 4, characterized in that: and the high-level water tank (103) is connected with the input end of the blockage clearing pipeline (201).

6. The intake back-flushing unblocking system according to claim 5, characterized in that: and a blockage clearing stop valve (201 a) is arranged on the blockage clearing pipeline (201).

7. The intake backwash water block removal system according to claim 6, wherein: the output end of the blockage removing pipeline (201) and the access point of the water taking pipeline (102) are positioned between the water outlet door (202) and the water taking stop valve (102 a).

8. The intake backwash water block-removing system according to any one of claims 1 to 3 and 5 to 7, wherein: a plurality of water outlet holes (202 b) are uniformly formed in the water outlet door (202), the water outlet holes (202 b) correspond to the nozzles (202 a) one by one, and the water outlets (C) of the nozzles (202 a) correspond to the grid openings (G) one by one.

9. The intake backwash water block removal system according to claim 8, wherein: one end of the water outlet door (202) is connected with the inner wall of the water taking pipeline (102) through a hinge (202 c), and the inner wall of the water taking pipeline (102) is symmetrically provided with limiting blocks (102 d).

10. The intake backwash water block removal system according to any one of claims 1 to 3, 5 to 7 and 9, wherein: the nozzle (202 a) is of a multi-stage telescopic structure and comprises a telescopic body (202 a-1), and the telescopic body (202 a-1) is connected through a spring (202 a-2).