CN216948621U

CN216948621U - Automatic drainage device for backwashing

Info

Publication number: CN216948621U
Application number: CN202123061913.9U
Authority: CN
Inventors: 王文东; 廉静茹; 井忠鑫; 杨鹏远
Original assignee: Bcig Environmental Remediation Co ltd
Current assignee: Bcig Environmental Remediation Co ltd
Priority date: 2021-12-08
Filing date: 2021-12-08
Publication date: 2022-07-12
Anticipated expiration: 2031-12-08

Abstract

A back-washing automatic drainage device, which comprises a washing water pump, a flow guide pipe, a drainage pipe and a drain outlet, the drain pipe is arranged in the vertical direction, a buoyancy valve is arranged at the water inlet of the drain pipe, the lower end of the drain pipe is connected with the flow guide pipe, a cleaning water pump and a water outlet are respectively arranged at the two ends of the flow guide pipe, a water discharge electromagnetic valve is arranged at one end of the flow guide pipe close to the water outlet, a filter screen is arranged at one side of the water discharge electromagnetic valve far away from the water outlet, the drainage pipe is provided with a drain outlet at one side of the filter screen away from the drainage electromagnetic valve, the drain outlet is provided with a drain electromagnetic valve, the side wall of the draft tube is connected with a back washing pipeline, two ends of the back washing pipeline are respectively arranged at two sides of the filter screen, the backwashing water pump is characterized in that a backwashing electromagnetic valve is arranged at one end, close to the washing water pump, of the backwashing pipeline, a flow guide electromagnetic valve is arranged between the backwashing electromagnetic valve and the sewage discharge outlet of the flow guide pipe, and a backwashing control electromagnetic valve is arranged at one end, located at the washing water pump, of the flow guide pipe. The automatic backwashing water draining device has a good backwashing effect, can be matched with automatic water draining to work, and is particularly suitable for automatically draining accumulated water at the bottom of a carbide slag covered field and a refuse landfill.

Description

Automatic drainage device for backwashing

Technical Field

The utility model belongs to the field of membrane bottom water treatment equipment, and particularly relates to a backwashing automatic drainage device.

Background

Present carbide slag covers place, landfill yard etc. and for preventing that filtration liquid from revealing, need lay HDPE membrane, geotechnological cloth etc. at the bottom of the pool, but along with the accumulation of time, the water yield under the bottom of the pool can slowly increase because of various reasons, for HDPE membrane, the geotechnological cloth bulge of preventing that the bottom of the pool from laying, need in time discharge the water at the bottom of the membrane.

Drainage pipe can be laid usually at the bottom of the pool, but debris such as silt exist at the bottom of the pool, can block up the filter screen of pipeline gradually at the drainage in-process, cause drainage effect to descend and the filter effect descends, finally still can cause the pipeline to block up, so need regularly clear up the pipeline, but partial debris are in on the filter screen during pipeline clearance, the rivers of normal flow direction are difficult with its clean up, current back flush equipment most adopts the pipeline formula filter screen, this kind of filter mode filter screen is bulky, and back flush pressure is little, can't be applicable to heavier particulate matter such as silt, it is unsatisfactory to cause partial scene back flush functional effect.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a backwashing automatic drainage device which has a good backwashing effect and can be matched with automatic drainage to work, and the backwashing automatic drainage device is particularly suitable for automatically draining accumulated water at the bottom of a carbide slag covered field and a refuse landfill.

The technical scheme of the utility model is as follows: a back-washing automatic drainage device, which comprises a washing water pump, a flow guide pipe, a drainage pipe and a drain outlet, the drain pipe is arranged in the vertical direction, a buoyancy valve is arranged at the water inlet of the drain pipe, the lower end of the drain pipe is connected with the flow guide pipe, the two ends of the flow guide pipe are respectively provided with a cleaning water pump and a water outlet, one end of the flow guide pipe close to the water outlet is provided with a water discharge electromagnetic valve, one side of the water discharge electromagnetic valve far away from the water outlet is provided with a filter screen, the drainage pipe is provided with a drain outlet at one side of the filter screen away from the drainage electromagnetic valve, the drain outlet is provided with a drain electromagnetic valve, the side wall of the draft tube is connected with a back washing pipeline, two ends of the back washing pipeline are respectively arranged at two sides of the filter screen, the backwashing water pump is characterized in that a backwashing electromagnetic valve is arranged at one end, close to the washing water pump, of the backwashing pipeline, a flow guide electromagnetic valve is arranged between the backwashing electromagnetic valve and the sewage discharge outlet of the flow guide pipe, and a backwashing control electromagnetic valve is arranged at one end, located at the washing water pump, of the flow guide pipe.

Further, a one-way valve or a piston of the buoyancy valve is arranged below the buoyancy valve and moves downwards to be in an opening state.

Further, the cleaning water pump is connected with a water tank or external water supply equipment.

Furthermore, the back washing electromagnetic valve, the flow guide electromagnetic valve, the water discharge electromagnetic valve, the sewage discharge electromagnetic valve and the back washing electromagnetic valve are all connected with the switch and the power supply through leads.

Further, the height of the water level at the bottom of the pool, at which the buoyancy valve is opened, is more than or equal to 10 mm.

The utility model has the advantages and positive effects that:

1. because the buoyancy valve is adopted, the height of the water level can be controlled by utilizing the characteristics of the buoyancy switch of the buoyancy valve, and when the water level is higher than the designated height, the buoyancy valve can be opened under the action of buoyancy, so that accumulated water at the bottom of the pool is discharged along the drain pipe, the stability of the water level at the bottom of the pool is ensured, the overhigh water level at the bottom of the pool is prevented, the negligence in the monitoring process of personnel is avoided, and the drainage is ensured to be timely.

2. Because the cleaning water pump is adopted to be matched with the flow guide pipe, the inner wall of the pipeline can be cleaned by utilizing high-speed water flow through considering that water pressure is applied when sludge is accumulated, the residue is avoided, the water flow direction can be guided through the matching control of a plurality of electromagnetic valves, and the cleaning effect and the pertinence are improved.

3. Due to the fact that the backwashing pipeline, the backwashing electromagnetic valve, the flow guiding electromagnetic valve, the water discharging electromagnetic valve and the sewage discharging electromagnetic valve are adopted, water flow can be guided to pass through the backwashing pipeline, the pressurized water flow can reversely flush the filter screen through the backwashing pipeline, the problems that the water flow pressure of a conventional backwashing structure is too small, stains with too strong adhesion cannot be cleaned are solved, the backwashing effect of conventional equipment is poor, the flushing effect is effectively improved, and the water flow pressure can be increased.

4. Because the buoyancy valve is opened with the piston downward or by adopting the one-way valve, the liquid backflow can be avoided after the cleaning water pump is pressurized, the liquid flow direction is controlled by the one-way valve, or the buoyancy valve is sealed by the liquid pressure, and the water flow is prevented from flowing to the bottom of the pool.

Drawings

Fig. 1 is a schematic structural view of the present invention.

In the figure:

1. cleaning water pump 2, honeycomb duct 3, buoyancy valve

4. Drain pipe 5, back flush solenoid valve 6, water conservancy diversion solenoid valve

7. Back flushing pipeline 8, water discharge electromagnetic valve 9 and water outlet

10. Filter screen 11, sewage outlet 12 and sewage electromagnetic valve

13. Back-flushing control electromagnetic valve

Detailed Description

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

As shown in fig. 1:

a back-washing automatic water discharging device comprises a washing water pump 1, a flow guide pipe 2, a water discharge pipe 4 and a sewage discharge port 11, wherein the water discharge pipe 4 is arranged in the vertical direction, a buoyancy valve 3 is arranged at a water inlet of the water discharge pipe 4, the lower end of the water discharge pipe 4 is connected with the flow guide pipe 2, a washing water pump 1 and a water discharge port 9 are respectively arranged at two ends of the flow guide pipe 2, a water discharge electromagnetic valve 8 is arranged at one end, close to the water discharge port 9, of the flow guide pipe 2, a filter screen is arranged at one side, away from the water discharge port 9, of the water discharge electromagnetic valve 8, the sewage discharge port 11 is arranged at one side of the filter screen 10, the sewage discharge port 11 is provided with a sewage discharge electromagnetic valve 12, the side wall of the flow guide pipe 2 is connected with a back-washing pipeline 7, two ends of the back-washing pipeline 7 are respectively arranged at two sides of the filter screen 10, a back-washing electromagnetic valve 5 is arranged at one end, the flow guide pipe 2 is arranged between the back-washing electromagnetic valve 5 and the sewage discharge port 11, and a back-washing control electromagnetic valve 13 is arranged at one end of the water guide pipe 2, which is positioned at the cleaning water pump 1.

A check valve or a piston of the buoyancy valve 3 moves downwards to be in an open state, wherein the check valve is arranged below the buoyancy valve 3.

The cleaning water pump 1 is connected with a water tank or external water supply equipment.

The back washing solenoid valve 5, the flow guide solenoid valve 6, the water discharge solenoid valve 8, the sewage discharge solenoid valve 12 and the back washing solenoid valve 5 are all connected with a switch and a power supply through leads.

The height of the water level at the bottom of the pool opened by the buoyancy valve 3 is more than or equal to 10 mm.

The working process of the example is as follows:

during the back washing operation, the diversion electromagnetic valve 6 can be closed, the sewage discharge electromagnetic valve 12, the back washing electromagnetic valve 12 and the back washing control electromagnetic valve 13 are opened, so that the high-pressure water flow cleans the diversion pipe 2 and the filter screen 10, and the water flow washes the filter screen 10 and the diversion pipe 2 through the back washing pipeline 7.

When the filter screen needs to be cleaned strongly, the flow guide electromagnetic valve 6 and the drainage electromagnetic valve 8 are closed, the back washing electromagnetic valve 5, the sewage discharge electromagnetic valve 12 and the back washing control electromagnetic valve 13 are opened, high-pressure water flow passes through the back washing pipeline 7 through the cleaning water pump 1 to clean the filter screen 10, and all pressure of the water flow passes through the filter screen 10 and the sewage discharge port 11 at the moment to finish the strong cleaning of the filter screen 10.

Although one embodiment of the present invention has been described in detail, the description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the utility model. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.

Claims

1. The utility model provides a back flush automatic water discharging device which characterized in that: comprises a cleaning water pump (1), a flow guide pipe (2), a drain pipe (4) and a sewage outlet (11), wherein the drain pipe (4) is arranged in the vertical direction, a buoyancy valve (3) is arranged at the water inlet of the drain pipe (4), the lower end of the drain pipe (4) is connected with the flow guide pipe (2), the cleaning water pump (1) and the water outlet (9) are respectively arranged at the two ends of the flow guide pipe (2), a drainage electromagnetic valve (8) is arranged at one end of the flow guide pipe (2) close to the water outlet (9), a filter screen is arranged at one side of the drainage electromagnetic valve (8) far away from the water outlet (9), the sewage outlet (11) is arranged at one side of the filter screen (10) far away from the drainage electromagnetic valve (8), the sewage outlet (11) is provided with a sewage discharge electromagnetic valve (12), the side wall of the flow guide pipe (2) is connected with a back flush pipeline (7), and the two ends of the back flush pipeline (7) are respectively arranged at the two sides of the filter screen (10), the backwashing water pump is characterized in that a backwashing electromagnetic valve (5) is arranged at one end, close to the cleaning water pump (1), of the backwashing pipeline (7), a diversion electromagnetic valve (6) is arranged between the backwashing electromagnetic valve (5) and the sewage discharge outlet (11) of the diversion pipe (2), and a backwashing control electromagnetic valve (13) is arranged at one end, located at the cleaning water pump (1), of the diversion pipe (2).

2. The backwash automatic water discharge device according to claim 1, wherein: and a one-way valve or a piston of the buoyancy valve (3) is arranged below the buoyancy valve (3) and moves downwards to be in an opening state.

3. The backwash automatic water discharge device according to claim 1, wherein: the cleaning water pump (1) is connected with a water tank or external water supply equipment.

4. The backwash automatic water discharge device according to claim 1, wherein: the back washing electromagnetic valve (5), the flow guide electromagnetic valve (6), the water discharge electromagnetic valve (8), the sewage discharge electromagnetic valve (12) and the back washing electromagnetic valve (5) are connected with a switch and a power supply through leads.

5. The backwash automatic water discharge device according to claim 1, wherein: the height of the water level at the bottom of the pool opened by the buoyancy valve (3) is more than or equal to 10 mm.