CN213202403U

CN213202403U - Water inlet backflow preventing structure of grating machine

Info

Publication number: CN213202403U
Application number: CN202021759569.3U
Authority: CN
Inventors: 康用; 向君
Original assignee: Chongqing Nanchuan Drainage Co ltd
Current assignee: Chongqing Nanchuan Drainage Co ltd
Priority date: 2020-08-21
Filing date: 2020-08-21
Publication date: 2021-05-14
Anticipated expiration: 2030-08-21

Abstract

The utility model discloses a water inlet backflow prevention structure of a grating machine, which comprises a sewage pipe, a drainage pipe, a baffle and a stable structure, wherein the lower end of the drainage pipe is communicated with the water outlet end of the sewage pipe, so that sewage is led to a position close to the upper end of a grating pool and is discharged; the baffle is fixedly connected with the upper end of the drainage tube through a connecting rod, and has a blocking effect on sewage discharged from the drainage tube, so that the sewage is prevented from splashing everywhere; the stabilizing structure comprises a stabilizing plate and a stabilizing rod and is used for providing a stabilizing effect for the drainage tube; the utility model discloses in, under the effect that blocks of baffle, sewage flows from the space between the upper end of baffle, connecting rod and drainage tube from drainage tube exhaust sewage to the position discharge that is close to grid pond upper end will be caused by sewage in the sewage pipe, and the water level in grid pond is less than the upper end of drainage tube, thereby can effectively avoid the condition of sewage backward flow.

Description

Water inlet backflow preventing structure of grating machine

Technical Field

The utility model relates to a sewage treatment's technical field especially relates to a grid machine prevents backflow structure that intakes.

Background

The grating machine is a solid-liquid separation device capable of continuously removing impurities in fluid, is an indispensable special device in the production processes of industries such as municipal sewage treatment, water supply plants, power plant water inlets, textile, food processing, papermaking, leather and the like, and is a solid-liquid screening device commonly adopted in China.

In the whole sewage treatment process, a grating machine is often needed to filter out impurities in the sewage, and then the sewage is subjected to subsequent treatment, so that the subsequent sewage treatment process is ensured to be carried out smoothly. In order to conveniently control the sewage filtering speed and facilitate the filtering of sewage by the grid machine, the grid machine is generally arranged in a grid pool, the grid pool is higher than a sewage gallery, a sewage pump is arranged in the sewage gallery, a water inlet end of a sewage pipe is communicated with a water outlet end of the sewage pump, the water outlet end of the sewage pipe is vertically arranged at the bottom of the grid pool, the sewage pump conveys the sewage from the sewage gallery into the grid pool through the sewage pipe, and after the sewage is filtered by the grid machine, large structural impurities are filtered out, so that the subsequent treatment of the sewage is facilitated.

Because the water outlet end of the sewage pipe is vertically arranged at the bottom of the grid pond, when the water level in the grid pond is too high or the flow of sewage in the sewage gallery is not enough, the sewage pipe easily generates a backflow phenomenon, so that the energy consumption for conveying sewage is increased, and meanwhile, the load of the sewage pump is increased, and the sewage pump is easily damaged.

Disclosure of Invention

To the above-mentioned problem that prior art exists, the utility model discloses a technical problem who solves is: the problem of sewage backward flow appears easily in the mode of intaking in current grid pond.

In order to solve the technical problem, the utility model adopts the following technical scheme:

the utility model provides a grid machine backflow structure of intaking, includes sewage pipe and drainage tube, the drainage tube is vertical to be set up in the grid pond, and the drainage tube is located the top of sewage pipe, the lower extreme of drainage tube and the play water end intercommunication of sewage pipe, the upper end of drainage tube is close to the up end in grid pond.

Through setting up the drainage tube, lead the sewage in the sewage pipe to the position that is close to grid pond upper end and discharge, the drainage tube upper end is higher than the water level in grid pond to can effectively avoid the condition of sewage backward flow, reduce sewage transportation energy consumption, reduce sewage pump load, make sewage pump's life increase.

Preferably, the water inlet anti-backflow structure of the grating machine further comprises a baffle, the baffle is horizontally arranged in the grating pool, and the baffle is located right above the drainage tube.

A plurality of connecting rods are arranged between the baffle and the drainage tube, the lower end of each connecting rod is fixedly connected with the upper end of the drainage tube, and the upper end of each connecting rod is fixedly connected with the baffle.

The baffle plate has a blocking effect on the sewage discharged from the drainage tube in the vertical direction, and when the flow speed of the sewage discharged from the drainage tube is slow, the sewage slowly flows out from the upper end of the drainage tube; when drainage tube exhaust sewage flow velocity was too fast, under the effect of blockking of baffle, can effectively avoid the too high problem that leads to sewage to fall outside the grid pond of sewage water column.

Preferably, the baffle is a conical cavity structure with an opening at the lower end, the diameter of the opening at the lower end of the baffle is larger than that of the drainage tube, the pointed end of the baffle faces upwards, and the upper end of the connecting rod is fixedly connected with the inner wall of the baffle.

Through setting up the baffle of lower extreme open-ended circular cone cavity structures, drainage tube upper end exhaust structure sewage is in the baffle block the effect down, in the grid pond of falling along the inner wall edge slant of baffle, can effectively avoid sewage because of being blockked and splash everywhere.

As preferred, a grid machine is intake anti-return structure still includes stable structure, stable structure includes steadying plate and stabilizer bar, the last vertical circular through-hole that is equipped with of steadying plate, steadying plate level set up in the grid pond, steadying plate is close to the upper end of drainage tube, the drainage tube with stabilize the circular through-hole interference fit on the board.

The number of the stabilizer bars is three, the three stabilizer bars are respectively horizontally arranged between the stabilizing plate and the three inner walls of the grid pond, one end of each stabilizer bar is fixedly connected with the side face of the corresponding stabilizing plate, and the other end of each stabilizer bar is fixedly connected with the inner wall of the corresponding grid pond. Through setting up stable structure, fix the drainage tube in the grid pond, avoid rivers undulant or other factors to cause the influence to the drainage tube.

Preferably, the baffle is made of wear-resistant stainless steel. Because the baffle is used for blockking sewage, must receive the impact of sewage for a long time, because contain silt and debris in the sewage, serious to the wearing and tearing of baffle, make the baffle take place corrosion damage easily, through using wear-resisting stainless steel material, can promote the wearability and the corrosion resisting capability of baffle greatly.

Preferably, the water inlet anti-backflow structure of the grating machine further comprises a pipeline flange plate, and the lower end of the drainage tube is fixedly connected with the water outlet end of the sewage pipe through the pipeline flange plate. The drainage tube is fixedly connected with the sewage pipe through the pipeline flange plate, so that the drainage tube is more reliably connected with the sewage pipe.

Compared with the prior art, the utility model discloses at least, following advantage has:

1. the utility model discloses in through setting up the drainage tube, cause the position discharge of being close to grid pond upper end with the sewage in the sewage pipe, the drainage tube upper end is higher than the water level in grid pond to can effectively avoid the condition of sewage backward flow, reduce sewage transportation energy consumption, reduce sewage pump load, make the life increase of sewage pump.

2. The utility model discloses well baffle has the effect of blockking in vertical direction to exhaust sewage in the drainage tube, and when drainage tube exhaust sewage velocity of flow was slow, sewage slowly emitted from the drain pipe upper end. When drainage tube exhaust sewage flow is too fast, under the effect of blockking of baffle, can effectively avoid the too high problem that leads to sewage to fall outside the grid pond of sewage water column, and the baffle is lower extreme open-ended circular cone cavity structure, drainage tube upper end exhaust structure sewage is in the baffle block the effect down, in the grid pond of falling along the inner wall edge slant of baffle, can effectively avoid sewage because of being blockked and splash everywhere.

3. The utility model discloses in, stable structure fixes the drainage tube in the grid pond, avoids rivers undulant or other factors to cause the influence to the drainage tube, has improved the job stabilization nature of this structure.

Drawings

Fig. 1 is a front view of the overall structure of the present invention.

Fig. 2 is a cross-sectional view at a in a front view of the overall structure of the present invention.

Fig. 3 is a top view of the overall structure of the present invention.

Fig. 4 is a perspective view of the overall structure of the present invention.

In the figure, 1-a sewage pipe, 2-a drainage pipe, 3-a grid pool, 4-a baffle, 5-a connecting rod, 6-a stabilizing structure, 61-a stabilizing plate, 62-a stabilizing rod, 7-a pipeline flange plate and 8-a grid machine.

Detailed Description

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

For convenience of description, the following description concepts are introduced in the writing of the present invention:

in the present invention 'front', 'rear', 'left', 'right', 'up', 'down' all refer to the orientation in fig. 1, wherein 'front' refers to facing outwards in fig. 1 with respect to the paper surface and 'rear' refers to facing inwards in fig. 1 with respect to the paper surface.

Referring to fig. 1-4, the present invention provides an embodiment:

example 1: the utility model provides a grid machine inflow anti-return structure, includes sewage pipe 1 and drainage tube 2, drainage tube 2 is vertical to be set up in grid pond 3, and drainage tube 2 is located the top of sewage pipe 1, the lower extreme of drainage tube 2 and the play water end intercommunication of sewage pipe 1, the upper end of drainage tube 2 is close to the up end of grid pond 3.

Further, the device also comprises a baffle 4, wherein the baffle 4 is horizontally arranged in the grating pool 3, and the baffle 4 is positioned right above the drainage pipe 2.

A plurality of connecting rods 5 are arranged between the baffle 4 and the drainage tube 2, the lower end of each connecting rod 5 is fixedly connected with the upper end of the drainage tube 2, and the upper end of each connecting rod 5 is fixedly connected with the baffle 4.

During specific implementation, the connecting rod 5 is made of stainless steel materials, so that the connecting rod 5 is not easy to corrode and damage under the long-time washing of sewage.

During concrete implementation, every connecting rod 5 comprises upper boom and lower beam, the upper boom is located the lower beam directly over, and the central point of lower beam upper surface puts and is equipped with vertical decurrent blind hole, the lower extreme of upper boom is located the blind hole, and the upper boom can follow the blind hole and slide from top to bottom, the upper boom overcoat is equipped with the spring, the lower extreme of spring and the upper end fixed connection of lower beam, the upper end and the 4 fixed connection of baffle, the lower extreme of lower beam and the upper end fixed connection of drainage tube 2, the upper end and the 4 fixed connection of baffle of upper boom. The detailed structure of the above-mentioned connecting rod 5 is not shown in the figures.

The technical characteristics have the following functions: when the sewage pressure that drainage tube 2 flows is great, sewage causes great impact to baffle 4, and baffle 4 drives the upper boom rebound, and the spring is stretched, and baffle 4 is far away with the upper end distance of drainage tube 2 this moment, and the clearance between baffle and the drainage tube 2 increases, does benefit to sewage and flows out in drainage tube 2 fast to reduce sewage to the impact force of baffle 4, effectively avoid baffle 4 to wear and tear ageing fast under the condition that receives great impact force. When the sewage pressure that drainage tube 2 flowed out reduced, sewage was less to the impact force of baffle 4, and the spring is shrink under self elasticity effect, drives baffle 4 and moves down and resumes normal operating condition.

Further, baffle 4 is the conical cavity structure of lower extreme open-ended, and the diameter of baffle 4 lower extreme open-ended is greater than the diameter of drainage tube 2, the pointed end of baffle 4 is up, the upper end of connecting rod 5 and the inner wall fixed connection of baffle 4.

Further, a stabilizing structure 6 is also included, the stabilizing structure 6 including a stabilizing plate 61 and a stabilizing bar 62.

Circular through holes are vertically formed in the stabilizing plate 61, the stabilizing plate 61 is horizontally arranged in the grid pond 3, the stabilizing plate 61 is close to the upper end of the drainage tube 2, and the drainage tube 2 is in interference fit with the circular through holes in the stabilizing plate 61.

The number of the stabilizer bars 62 is three, the three stabilizer bars 62 are respectively horizontally arranged between the stabilizer plate 61 and three inner walls of the grid pond 3, one end of each stabilizer bar 62 is fixedly connected with the side surface of the corresponding stabilizer plate 61, and the other end of each stabilizer bar 62 is fixedly connected with the inner wall of the corresponding grid pond 3.

In specific implementation, the number of the stabilizing structures 6 is multiple, and the stabilizing structures 6 are distributed in the grid tank 3 from top to bottom. Provide better stable effect to drainage tube 2 through setting up a plurality of stable structure 6 to improve backflow prevention structure's stability.

In specific implementation, one end of the stabilizer bar 62 is fixedly connected with the side surface of the stabilizer plate 61 through a bolt, and the other end of the stabilizer bar 62 is fixedly connected with the inner wall of the grid pond 3 through a bolt.

In specific implementation, the stabilizer bar 62 and the stabilizer plate 61 are both made of stainless steel. The stabilizer bar 62 and the stabilizer plate 61 are not easy to be corroded and damaged under the long-time washing of sewage.

Further, the baffle 4 is made of wear-resistant stainless steel. The baffle 4 is not easy to corrode and damage under the long-time washing of sewage, and the sediment in the sewage is prevented from causing the baffle 4 to be quickly worn and deformed.

Furthermore, the sewage treatment device also comprises a pipeline flange 7, and the lower end of the drainage tube 2 is fixedly connected with the water outlet end of the sewage tube 1 through the pipeline flange 7.

The utility model discloses what inject a grid machine inflow anti-return structure's theory of operation as follows:

the lower extreme of drainage tube 2 and the play water end intercommunication of sewage pipe 1, baffle 4 passes through connecting rod 5 and drainage tube 2's upper end fixed connection, the sewage of following drainage tube 2 exhaust is under the effect of blockking of baffle 4, sewage flows out from the baffle 4, the space between the upper end of connecting rod 5 and drainage tube 2 to lead to the position that is close to grid pond 3 upper end by sewage in the sewage pipe 1 and discharge, the water level in grid pond 3 is less than the upper end of drainage tube 2, thereby can effectively avoid the condition of sewage backward flow.

The circular through hole interference fit on drainage tube 2 and the steadying plate 61, stabilizer bar 62 one end and steadying plate 61 fixed connection, the other end of stabilizer bar 62 and the inner wall fixed connection of grid pond 3 to for drainage tube 2 provides support and stabilizing effect, avoid drainage tube 2 rivers impact to decline or damage.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. The utility model provides a grid machine anti-return structure that intakes, includes sewage pipe (1), its characterized in that: also comprises a drainage tube (2);

the drainage pipe (2) is vertically arranged in the grid pond (3), and the drainage pipe (2) is positioned above the sewage pipe (1);

the lower end of the drainage tube (2) is communicated with the water outlet end of the sewage pipe (1), and the upper end of the drainage tube (2) is close to the upper end face of the grating tank (3).

2. The water inlet backflow preventing structure of the grating machine as claimed in claim 1, wherein: also comprises a baffle (4);

the baffle (4) is horizontally arranged in the grid pool (3), and the baffle (4) is positioned right above the drainage tube (2);

a plurality of connecting rods (5) are arranged between the baffle (4) and the drainage tube (2), the lower end of each connecting rod (5) is fixedly connected with the upper end of the drainage tube (2), and the upper end of each connecting rod (5) is fixedly connected with the baffle (4).

3. The water inlet backflow preventing structure of the grating machine as claimed in claim 2, wherein: baffle (4) are the circular cone cavity structures of lower extreme open-ended, and baffle (4) lower extreme open-ended diameter is greater than the diameter of drainage tube (2), the pointed end of baffle (4) is up, the upper end of connecting rod (5) and the inner wall fixed connection of baffle (4).

4. The water inlet backflow preventing structure of the grating machine as claimed in claim 3, wherein: further comprising a stabilizing structure (6);

the stabilizing structure (6) comprises a stabilizing plate (61) and a stabilizing bar (62);

circular through holes are vertically formed in the stabilizing plate (61), the stabilizing plate (61) is horizontally arranged in the grid pond (3), the stabilizing plate (61) is close to the upper end of the drainage tube (2), and the drainage tube (2) is in interference fit with the circular through holes in the stabilizing plate (61);

the number of stabilizer bars (62) is three, three stabilizer bars (62) level respectively lie in between three inner wall of stabilizer plate (61) and grid pond (3), the one end of every stabilizer bar (62) and the side fixed connection who corresponds stabilizer plate (61), the other end of every stabilizer bar (62) and the inner wall fixed connection who corresponds grid pond (3).

5. The water inlet backflow preventing structure of the grating machine as claimed in claim 4, wherein: the baffle (4) is made of wear-resistant stainless steel materials.

6. The water inlet backflow preventing structure of the grating machine as claimed in claim 5, wherein: the drainage pipe is characterized by further comprising a pipeline flange plate (7), and the lower end of the drainage pipe (2) is fixedly connected with the water outlet end of the sewage pipe (1) through the pipeline flange plate (7).