WO2023226986A1

WO2023226986A1 - Anti-blocking negative-pressure sewage collection station

Info

Publication number: WO2023226986A1
Application number: PCT/CN2023/095815
Authority: WO
Inventors: 张维; 陈礼国
Original assignee: 上海在田环境科技有限公司; 江苏丰又环境科技有限公司
Priority date: 2022-05-23
Filing date: 2023-05-23
Publication date: 2023-11-30
Also published as: CN217924036U

Abstract

The present application relates to the technical field of sewage collection. Disclosed is an anti-blocking negative-pressure sewage collection station, comprising a well body, wherein a control assembly, a negative-pressure collection tank, and a water intake assembly, a water output assembly and a negative-pressure generation assembly, which are in communication with the negative-pressure collection tank, are arranged in the well body; the bottom of the well body is provided with a skid-mounted frame; the negative-pressure collection tank, the water intake assembly, the water output assembly and the negative-pressure generation assembly are all mounted on the skid-mounted frame; at least one side of the negative-pressure collection tank is arranged close to the well body; and a mesh screen is arranged between the water intake assembly and the water output assembly and in the negative-pressure collection tank, and is used for dividing the negative-pressure collection tank into two water storage areas. The present application has the effects of reducing the size of the sewage collection station and improving the applicability of the sewage collection station.

Description

An anti-blocking negative pressure sewage collection station

Technical field

This application relates to the technical field of sewage collection, and in particular to an anti-blocking negative pressure sewage collection station.

Background technique

Unlike the compact layout of urban buildings, rural residences are often scattered. When treating rural domestic sewage, domestic sewage is first discharged into a collection well for collection, and then pumped to a sewage collection station through negative pressure pipes, and finally directed to a centralized sewage treatment device, such as a sewage treatment plant for treatment.

The existing sewage collection station is mainly composed of a negative pressure collection tank, a negative pressure component and an inlet and outlet pipeline, and discharges the sewage in the negative pressure collection tank regularly or quantitatively.

In practice, the inventor found that due to the large number of functional components in the sewage collection station, the sewage collection station is large in size, highly complex, difficult to transport, install and maintain, has low applicability and high cost. In addition, sewage usually contains some plastics. Floating objects such as bags and filaments can easily cause blockage in the inlet and outlet pipes, resulting in frequent repairs of the sewage collection station, which urgently needs improvement.

Utility model content

In order to reduce the volume of the sewage collection station, improve the anti-blocking capability of the sewage collection station, and reduce the failure rate of the sewage collection station, this application provides a blockage-resistant negative pressure sewage collection station.

The anti-blocking negative pressure sewage collection station provided by this application adopts the following technical solution:

An anti-blocking negative pressure sewage collection station includes a well body, which is provided with a control component, a negative pressure collection tank, a water inlet component, a water outlet component and a negative pressure generator connected to the negative pressure collection tank. components;

A skid-mounted frame is provided at the bottom of the well body, and the negative pressure collection tank, water inlet assembly, water outlet assembly and negative pressure generating assembly are all installed on the skid-mounted frame;

At least one side of the negative pressure collection tank is disposed in close contact with the well body;

A screen is provided in the negative pressure collection tank between the water inlet component and the water outlet component to divide the negative pressure collection tank into two water storage areas.

By adopting the above technical solution, during operation, the negative pressure collection tank is used to generate a vacuum through the negative pressure generating component, thereby allowing the sewage to be extracted. When the liquid level of the sewage reaches the set value, the sewage is discharged centrally through the water outlet component, thereby completing the process. Transfer work of sewage; installing the water outlet component, water inlet component and negative pressure generating component on the skid-mounted frame can better integrate multiple functional components together, which can not only reduce the number of functional components inside the well body The occupied space can also make it easier to hoist multiple functional components. By attaching the negative pressure collection tank to the wall of the well body, the negative pressure collection tank can be installed more reasonably in the well body, which can reduce the load of the well body. volume, thereby reducing the space occupied by the installation of the well body and improving the adaptability of the installation of the well body. In addition, the screen can be used to filter floating objects such as plastic bags and filaments, reducing the clogging of the water outlet components and improving the efficiency of the sewage collection station. Blockage resistance.

Preferably, the water outlet assembly includes a water outlet pipe connected to the negative pressure collection tank, and a pumping pipeline connected to the water outlet pipe;

The pumping pipeline includes a pump water pipe and a lifting pump connected thereto;

The number of the pumping pipelines is set to at least two, and an electronically controlled three-way valve electrically connected to the control component is provided between the two pumping pipelines and the water outlet pipe.

By using at least two lifting pumps, when one of the lifting pumps is damaged, the other one can be opened in time, thereby avoiding excessively high sewage liquid level in the negative pressure collection tank and improving the stability of the device.

Preferably, a return pipe is provided in communication between at least one of the pumping pipelines and the negative pressure collection tank.

By adopting the above technical solution, when the lift pump extracts sewage in the negative pressure collection tank, due to the vacuum inside the negative pressure collection tank, the efficiency of the lift pump in extracting sewage is seriously affected during the extraction process. By opening the return pipe, the It can balance the pressure between the negative pressure collection tank and the water outlet pipe, thereby improving the efficiency of the lift pump in extracting sewage.

Preferably, at least two of the lift pumps are detachably mounted on the skid-mounted frame through mounting plates;

And the two lift pumps are located at the bottom of the negative pressure collection tank.

By adopting the above technical solution, installing the lift pump at the bottom of the negative pressure collection tank can make more reasonable use of the space in the well body of the sewage collection station, thereby further reducing the footprint of the device.

Preferably, the well body is cylindrical as a whole, the negative pressure collection tank has a fusiform cross-section, and the side curvature is consistent with the curvature of the well body wall, and the two are arranged closely together.

By adopting such a design, the gap between the well body and the negative pressure collection tank can be narrowed, the utilization rate of the internal space of the well body can be improved, and the floor space of the sewage collection station can be reduced.

Preferably, the control assembly includes an electric control box, which is detachably disposed on the side wall of the well body relative to the negative pressure collection tank.

By adopting the above technical solutions,

Preferably, the negative pressure generating assembly includes at least two vacuum pumps, and the vacuum pumps are respectively connected to the negative pressure installation tank through negative pressure pipes.

By using two vacuum pumps, when one of the vacuum pumps is damaged, the other vacuum pump can be turned on to avoid the occurrence of ultra-high sewage level.

Preferably, the water inlet assembly includes a water inlet pipe connected to the negative pressure collection tank;

The water inlet and outlet directions of the water inlet pipe and the water outlet pipe are 180° opposite.

By adopting the above technical solution, the space occupied by the water inlet pipe and the water outlet pipe can be reduced, and it can also be more conveniently connected with external pipelines, so that the internal space can be reasonably utilized.

Preferably, the negative pressure collection tank is connected with an anti-overflow pipe, one end of the anti-overflow pipe is connected to the top of the negative pressure collection tank, and the other end extends to the bottom of the well body;

A controlled switch valve is provided on the anti-overflow pipe, and the controlled switch valve opens or closes the anti-overflow pipe in response to water accumulation depth data at the bottom of the well body.

By adopting the above technical solution and using anti-overflow pipes, the water at the bottom of the well body can be pumped back into the negative pressure collection tank in a timely manner, reducing the probability of damage to functional components such as the lift pump and extending the service life of each functional component; it is also more It is helpful for staff to conduct maintenance on sewage collection stations.

Preferably, the negative pressure collection tank is provided with liquid level gauges on both sides of the screen.

By adopting the above technical solution, on the one hand, the liquid level in the negative pressure collection tank can be detected through the liquid level gauge, thereby controlling the water outlet component to discharge the sewage; on the other hand, the liquid level gauge can be placed on both sides of the screen to detect the liquid level separately. Detect the liquid level on both sides of the screen. When the liquid level difference on both sides of the screen reaches the set value, an alarm will be issued, which can remind the staff to perform maintenance and improve the convenience of using the sewage collection station.

To sum up, this application includes at least one of the following beneficial technical effects:

1. Installing the water outlet component, water inlet component and negative pressure generating component on the skid-mounted frame can connect multiple functional components more closely, reduce the space occupied by functional components, and multiple functional components can be installed at the same time. Lifting a functional component makes it easier to install and disassemble the functional components. With the negative pressure collection tank close to the wall of the well body, the negative pressure collection tank can be installed more reasonably in the well body, which can reduce the damage to the well body. volume, and reduce the space occupied by installing the well body, improving the applicability of the well installation;

2. Use at least two lift pumps and install the lift pumps at the bottom of the negative pressure collection tank. When one lift pump is damaged, open the other lift pump to avoid excessively high sewage level in the negative pressure collection tank and increase the device stability of use;

3. The use of anti-overflow pipes can promptly pump the water at the bottom of the well body back into the negative pressure collection tank, reducing the probability of damage to functional components such as the lift pump and extending the service life of each functional component.

4. The screen is used to filter and intercept the sewage discharged into the negative pressure collection tank, thereby reducing the risk of clogging of the lift pump and thereby reducing the failure rate of the lift pump; real-time monitoring is performed through the liquid level gauges on both sides of the screen. Monitoring, when the liquid level difference on both sides of the screen reaches the set value, an alarm will be issued to remind the staff to clean the screen in time, improving the convenience of using the sewage collection station.

Description of the drawings

Figure 1 is a schematic structural diagram of an anti-blocking negative pressure sewage collection station according to an embodiment of the present application.

Figure 2 is a cross-sectional view of an anti-clogging negative pressure sewage collection station according to an embodiment of the present application.

Figure 3 is a second cross-sectional view of an anti-clogging negative pressure sewage collection station according to an embodiment of the present application.

Figure 4 is a schematic structural diagram highlighting the negative pressure collection tank according to the embodiment of the present application.

Figure 5 is a cross-sectional view highlighting the negative pressure collection tank according to the embodiment of the present application.

Reference symbols: 1. Well body; 2. Electric control box; 3. Drainage outlet; 4. Installation lifting lugs; 5. Exhaust pipe; 6. Cover plate; 7. Well head; 8. Water inlet pipe; 9. Overflow prevention Water pipe; 10. Inspection cover; 11. Negative pressure collection tank; 12. Climbing pole; 13. Ventilation fan; 14. Negative pressure pipe; 15. Vacuum pump; 16. Screen; 17. Screen hole; 18. Water outlet pipe; 19 , Lifting pump; 20. Skid-mounted frame; 21. Flow meter; 22. Controlled switch valve; 23. Liquid level gauge; 24. Return pipe; 25. Electronically controlled three-way valve; 26. Inspection port; 27. Pump water pipe .

Detailed ways

The present application will be further described in detail below in conjunction with Figures 1-5.

The embodiment of the present application discloses a blockage-resistant negative pressure sewage collection station. Referring to Figures 1 and 2, a blockage-resistant negative pressure sewage collection station includes a well body 1. The well body 1 is cylindrical. A control component, a negative pressure collection tank 11 and a negative pressure collection tank 11 are fixed in the well body 1. The tank 11 is connected with the water inlet component, the water outlet component and the negative pressure generating component. The cross section of the negative pressure collection tank 11 is fusiform and the side curvature is consistent with the curvature of the inner wall of the well body 1, and the two are arranged closely together.

Referring to Figures 1 and 2, two exhaust pipes 5 are fixed on the top of the well body 1. The exhaust pipes 5 are bent from one end away from the well body 1 to close to the well body 1. The exhaust pipe 5 is located in the middle of the well body 1. A ventilation fan 13 is fixed; a wellhead 7 is provided at the top of the well body 1 near the outer wall, and a cover plate 6 is hingedly provided on the wellhead 7; a plurality of climbing poles 12 are welded and fixed to the well body 1 at the wellhead 7 toward the bottom of the well, and the climbing poles 12 are in the shape of U-shaped; four mounting lifting lugs 4 are welded and fixed on the top of the well body 1. Preferably, the four mounting lifting lugs 4 are installed on the top of the well body 1 in a circumferential array.

The circular design can reduce the floor space of the well body 1 and improve the convenience of installation of the well body 1; the staff can enter the inside of the well body 1 through the well head 7, making it easier for the staff to perform maintenance on the well body 1.

Referring to Figures 1 and 3, the control assembly includes an electric control box 2. The electric control box 2 is a rectangular box. The electric control box 2 is bolted to the side wall of the well body 1 relative to the negative pressure collection pipe. The water inlet component, the water outlet component and the negative pressure generating component are electrically connected through the electric control box 2, thereby achieving the effect of controlling the negative pressure collection tank 11.

Referring to Figures 2 and 4, the water inlet assembly includes a water inlet pipe 8 connected to the negative pressure collection tank 11. One end of the water inlet pipe 8 away from the negative pressure collection tank 11 is connected to the collection well. A control box is installed on the water inlet pipe 8. An electrically connected electric control valve; the water outlet assembly includes an outlet pipe 18 connected to the negative pressure collection tank 11, and a pumping pipeline connected to the outlet pipe 18; the water inlet and outlet directions of the outlet pipe 18 and the water inlet pipe 8 are 180° opposite direction.

Referring to Figures 2 and 5, the pumping pipeline includes a pump pipe 27 and a lifting pump 19 connected thereto. A drain port 3 is formed on one end of the pump pipe 27 away from the negative pressure collection tank 11. The pumping pipeline of this embodiment There are two of them, and an electronically controlled three-way valve 25 electrically connected to the control box is installed between the pumping pipeline and the water outlet pipe 18.

Referring to Figures 4 and 5, a flow meter 21 for detecting the water flow rate is installed on the water outlet pipe 18. The water outlet pipe 18 is installed with a return pipe 24 that communicates with the negative pressure collection tank 11 . The return pipe 24 is equipped with an electric control valve that is electrically connected to the electric control box 2 . With such a design, the flow meter 21 is used to detect the flow rate, and the electric control valve is opened, so that the outlet pipe 18 is connected to the negative pressure collection tank 11, so that the pressure at both ends of the lift pump 19 can be consistent, and the pressure in the negative pressure collection tank 11 can be avoided. The pressure is too high, making it impossible to extract sewage from the negative pressure collection tank 11. By opening the return pipe 24, the convenience of extracting sewage is improved.

Using such a design to collect sewage through the negative pressure collection tank 11, and then centrally discharging the sewage into the sewage treatment plant through the lifting pump 19 can greatly improve the transmission efficiency. Using such a designed water inlet component and water outlet component can only make it more efficient. Save the space occupied and make the overall structure more compact.

Referring to Figures 1 and 2, a skid-mounted frame 20 is bolted to the bottom of the well body 1. The skid-mounted frame 20 is welded by multiple steel pipes to form a rectangular frame. The skid-mounted frame 20 is bolted to a mounting for supporting the negative pressure collection tank 11. The column, the top of the negative pressure collection tank 11 and the skid-mounted frame 20 are all welded and fixed with mounting lugs 4, and the end of the skid-mounted frame 20 away from the negative pressure collection tank 11 is bolted with two mounting plates for fixing the lifting pump 19; When installing the lift pump 19, the mounting plate can also be bolted to the skid-mounted frame 20 at the bottom of the negative pressure collection tank 11.

Both methods can make the structure compact and make better use of the space inside the well body 1; By detachably installing the lift pump 19 on the skid-mounted frame 20, the installation and disassembly of the lift pump 19 can be more convenient.

Referring to Figures 4 and 5, the water inlet pipe 8 and the water outlet pipe 18 respectively form a water inlet and a water outlet on the negative pressure collection tank 11. A screen 16 is welded and fixed between the water inlet and the water outlet in the negative pressure collection tank 11. The screen 16 is provided with a plurality of screen holes 17, and the screen holes 17 pass particles smaller than 10 mm. The screen 16 divides the negative pressure collection tank 11 into two water storage areas of the same size.

By using the screen 16 in this way, sewage can be filtered to prevent foreign matter containing larger particles from entering the outlet pipe 18 and causing blockage of the lift pump 19, thereby improving the anti-blocking ability of the lift pump 19, thereby reducing the failure of the sewage collection station. Rate.

Referring to Figure 4, an access port 26 is provided on the side wall of the negative pressure collection tank 11 near the bottom. The access port 26 is connected to the water storage area connected to the water inlet. The access port 26 is bolted to an access cover 10. By opening the access port 26, it can The precipitated dirt in the internal sewage is discharged in a timely manner to avoid accumulation in the negative pressure collection tank 11 and affecting the sewage extraction effect.

Referring to Figures 2 and 4, the negative pressure generating assembly includes at least two vacuum pumps 15. The vacuum pumps 15 are respectively connected with the negative pressure tanks through negative pressure pipes 14. A mounting bracket is welded and fixed on the top of the negative pressure collection tank 11, and the vacuum pumps 15 are bolted. on the mounting bracket.

With such a design, multiple vacuum pumps 15 can be used to evacuate the negative pressure collection tank 11. If one of the vacuum pumps 15 is damaged, it will not affect the normal work, improve the fault tolerance rate of using the vacuum pump 15, and avoid stopping due to one vacuum pump 15. work, causing the sewage to be unable to be treated and improving the stability of the device.

Referring to Figures 2 and 4, the negative pressure collection tank 11 is connected with an anti-overflow pipe 9. One end of the anti-overflow pipe 9 is connected to the negative pressure collection tank 11 and the other end extends to the bottom of the well body 1; the anti-overflow pipe 9 is installed on the negative pressure collection tank 11. have The controlled switch valve 22 is electrically connected to the electric control box 2. The controlled switch valve 22 opens or closes the anti-overflow pipe 9 according to the water depth data at the bottom of the well body 1.

Using such a design, the accumulated water at the bottom of the well body 1 can be extracted in time, reducing the probability of damage to functional components such as the lift pump 19 and extending the service life of each functional component.

Referring to Figures 2 and 4, two liquid level gauges 23 for detecting the liquid level of the negative pressure collection tank 11 are installed on the negative pressure collection tank 11. The two liquid level gauges 23 are respectively arranged on both sides of the screen 16. The position meter 23 is electrically connected to the electric control box 2 . On the one hand, when the height of the sewage is higher than the set value, the lift pump 19 is turned on to perform a series of pumping operations to discharge the sewage; on the other hand, the liquid level gauge 23 is installed on both sides of the screen 16 to monitor The negative pressure collection tank 11 detects the liquid level on both sides of the screen 16. When the liquid level difference on both sides of the screen 16 reaches the set value, the system remotely alarms through the Internet of Things, which can remind the staff to check the negative pressure in time. The collection tank 11 is cleaned to improve the convenience of using the sewage collection station.

The implementation principle of the anti-blocking negative pressure sewage collection station in the embodiment of the present application is as follows: when working, the staff connects the water inlet pipe 8 with the collection well, connects the water outlet pipe 18 with the sewage treatment plant, and pneumatically operates the electric control box 2 through the electric control box 2 The vacuum pump 15 evacuates the negative pressure collection tank 11; when it is necessary to speed up the vacuuming efficiency, or when it is necessary to increase the suction force of the negative pressure vacuum pipe, multiple vacuum pumps 15 can be opened at the same time, thereby improving the efficiency of extracting sewage;

When the liquid level of sewage is higher than the preset value of the staff, the electronically controlled three-way valve 25 and the lifting pump 19 are controlled through the electric control box 2 to control the electronically controlled valve of the manifold. After completion, the lifting pump Under the action of 19, the sewage is pumped out from the negative pressure collection tank 11; when it is necessary to increase the discharge efficiency of sewage, the two lifting pumps 19 can be opened at the same time, thereby increasing the extraction force of sewage and improving the discharge efficiency of sewage;

When the negative pressure collection tank 11 is used for a long time, the staff first tests the quality of the air in the well body 1. When the air quality is poor, the ventilation fan 13 is turned on to quickly achieve internal air circulation. When the air returns to normal, the staff enters the well body 1 from the wellhead 7. There is no sewage inside, releases the vacuum of the negative pressure collection tank 11, and then removes the inspection cover 10 to clean the negative pressure collection tank 11. Dirt.

When there is accumulated water at the bottom of the well body 1, and when the accumulated water reaches a certain depth, the electric control box 2 will open the controlled switch valve 22, so that the overflow prevention pipe 9 can extract the accumulated water at the bottom of the well body 1.

When the vacuum pump 15 and/or the lift pump 19 is damaged, another vacuum pump 15 and/or the lift pump 19 can be controlled through the electric control box 2 for replacement, thereby reducing the occurrence of inoperability due to device damage and providing repairs for the staff. The damaged device provides time and improves the convenience of using two vacuum pumps 15 and two lift pumps 19.

The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application shall be covered by the scope of protection of the present application. Inside.

Claims

An anti-blocking negative pressure sewage collection station, including a well body (1). The well body (1) is provided with a control component, a negative pressure collection tank (11) and is connected to the negative pressure collection tank (11). The water inlet component, the water outlet component and the negative pressure generating component of

A skid-mounted frame (20) is provided at the bottom of the well body (1), and the negative pressure collection tank (11), water inlet assembly, water outlet assembly and negative pressure generating assembly are all installed on the skid-mounted frame (20) ;

At least one side of the negative pressure collection tank (11) is arranged in close contact with the well body (1);

A screen (16) is provided in the negative pressure collection tank (11) between the water inlet component and the water outlet component to divide the negative pressure collection tank (11) into two water storage areas.
An anti-blocking negative pressure sewage collection station according to claim 1, characterized in that the water outlet assembly includes a water outlet pipe (18) connected to the negative pressure collection tank (11), and a water outlet pipe (18) connected to the negative pressure collection tank (11). The pumping pipeline connected to the water outlet pipe (18);

The pumping pipeline includes a pump water pipe (27) and a lifting pump (19) connected thereto;

The number of the pumping pipelines is set to at least two, and an electrically controlled three-way valve (25) electrically connected to the control assembly is provided between the two pumping pipelines and the water outlet pipe (18).
An anti-blocking negative pressure sewage collection station according to claim 2, characterized in that at least one of the pumping pipelines and the negative pressure collection tank (11) is connected with a return pipe (24).
An anti-blocking negative pressure sewage collection station according to claim 2, characterized in that: at least two of the lifting pumps (19) are detachably installed on the skid-mounted frame (20) through a mounting plate;

And the two lifting pumps (19) are located at the bottom of the negative pressure collection tank (11).
An anti-blocking negative pressure sewage collection station according to claim 1, characterized in that Yu: the well body (1) is cylindrical as a whole, the cross-section of the negative pressure collection tank (11) is fusiform, and the curvature of the side is consistent with the curvature of the inner wall of the well body (1), and the two are placed closely together .
An anti-blocking negative pressure sewage collection station according to claim 5, characterized in that: the control component includes an electric control box (2), and the electric control box (2) is detachably installed in the well. on the side wall of the body (1) relative to the negative pressure collection tank (11).
An anti-blocking negative pressure sewage collection station according to claim 1, characterized in that: the negative pressure generating assembly includes at least two vacuum pumps (15), and the vacuum pumps (15) respectively pass through the negative pressure pipes (14 ) is connected with the negative pressure collection tank (11).
An anti-blocking negative pressure sewage collection station according to claim 2, characterized in that: the water inlet assembly includes a water inlet pipe (8) connected to the negative pressure collection tank (11);

The water inlet pipe (8) and the water outlet pipe (18) are arranged 180° opposite to the water inlet and outlet directions.
An anti-blocking negative pressure sewage collection station according to claim 1, characterized in that: the negative pressure collection tank (11) is connected with an anti-overflow pipe (9), and the anti-overflow pipe (9) One end is connected to the top of the negative pressure collection tank (11), and the other end extends to the bottom of the well body (1);

The anti-overflow pipe (9) is provided with a controlled switch valve (22). The controlled switch valve (22) opens or closes the anti-overflow pipe (9) in response to the water depth data at the bottom of the well body (1). )
An anti-blocking negative pressure sewage collection station according to claim 1, characterized in that the negative pressure collection tank (11) is provided with liquid level gauges (23) on both sides of the screen (16). .