Integrated prefabricated pump station with backflow prevention function

Abstract

The integrated prefabricated pump station comprises a pump station shell, the pump station shell is of a cylindrical structure with an opening in the lower surface, a base is fixedly installed on the lower surface of the pump station shell, and a water inlet pipe is arranged on the surface of one side of the pump station shell in a penetrating mode. A water outlet pipe is arranged on the surface of the other side of the pump station shell in a penetrating mode, and a connecting pipe is arranged at one end of the water outlet pipe in a penetrating mode. According to the integrated prefabricated pump station with the backflow prevention function, the connecting cylinder is arranged in the water outlet pipe, the ball is arranged in the connecting cylinder, the limiting block is arranged on one side of the connecting cylinder, when water flow pushes the ball to move towards the limiting block from the water outlet pipe, the water flow penetrates through the connecting cylinder to be discharged out of the pump station, and on the contrary, when the water flow pushes the ball to make contact with the inner wall of the connecting cylinder, the limiting block is arranged. Water flow is blocked by the ball body, so that one-way flowing of water flow is realized, and sewage backflow is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of pump stations, in particular to an integrated prefabricated pump station with backflow prevention function. Background Art

[0002] Compared with concrete pumping stations, integrated prefabricated pumping stations have the advantages of small footprint, short construction period and low price. They have gradually replaced concrete pumping stations. Integrated prefabricated pumping stations are lifting equipment for sewage, rainwater, drinking water and wastewater. They are pressurized pumping stations produced and assembled in the factory and then transported to the site for installation.

[0003] During the water delivery process of the integrated prefabricated pump station, the pressure inside and outside the outlet pipe changes continuously due to the frequent start and stop of the water pump in the pump station. The changing air pressure may cause sewage backflow at the outlet pipe. The backflow of sewage will cause pollutants to return to the interior of the pump station with the backflow sewage, causing a large amount of pollutants to precipitate inside, causing the equipment to be corroded by corrosive substances in the sediment, affecting the normal service life of the equipment and increasing the cost of equipment maintenance. Utility Model Content

[0004] The purpose of the utility model is to provide an integrated prefabricated pump station with backflow prevention. The device sets a one-way flow structure at the outlet pipe of the pump station to prevent sewage backflow in the pump station, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an integrated prefabricated pump station with backflow prevention, comprising a pump station shell, the pump station shell being a cylindrical structure with an open lower surface, and a base fixedly installed on the lower surface of the pump station shell, an inlet pipe being provided through one side surface of the pump station shell, an outlet pipe being provided through the other side surface of the pump station shell, a connecting pipe being provided through one end of the outlet pipe, a submersible pump being connected to the upper surface of the base, a maintenance plate being fixedly installed on the inner wall of the pump station shell, an escalator being provided on the inner wall of the pump station shell, a maintenance port being rotatably installed on the upper surface of the pump station shell, and the maintenance port being aligned with the upper end of the escalator, an anti-backflow structure being provided inside the outlet pipe, and a connecting tube and a sphere being provided in the anti-backflow structure to realize unidirectional flow of water.

[0006] Preferably, the anti-backflow structure includes a connecting tube, which is fixedly installed on the inner wall of the water outlet pipe, with both ends of the connecting tube connected, one end of the connecting tube being a cylindrical structure, and the other end of the connecting tube being a truncated cone structure.

[0007] By adopting the above technical solution, the anti-backflow structure can realize the one-way flow of water in the outlet pipe of the pump station.

[0008] Preferably, a sphere is provided inside the connecting cylinder, the diameter of the sphere is larger than the opening on the conical side of the connecting cylinder, and the diameter of the sphere is smaller than the opening on the cylindrical side of the connecting cylinder, a limiting block is provided on the cylindrical side of the connecting cylinder, the limiting block is a hemispherical structure, and the surface of the limiting block is a water-permeable grid structure, the limiting block is fixedly connected to the inner wall of the water outlet pipe, and the limiting block is aligned with the opening of the connecting cylinder.

[0009] By adopting the above technical solution, the opening of the connecting tube can be opened and closed by utilizing the movement of the ball.

[0010] Preferably, a filtering structure is provided inside the water inlet pipe, and the filtering structure is provided with a filter screen and an impeller to intercept debris in the sewage.

[0011] By adopting the above technical solution, the filtering structure can be used to prevent debris from entering the pump station.

[0012] Preferably, the filtering structure includes a filter screen, which is fixedly mounted on the inner wall of the water inlet pipe. An impeller is rotatably connected to the center of the filter screen, and a cutting knife is provided on the edge of the blade of the impeller.

[0013] By adopting the above technical solution, the filter screen can be prevented from being clogged by utilizing the water flow to drive the impeller to rotate.

[0014] Preferably, a flow-blocking structure is provided on the surface of the base, and a baffle is provided on the flow-blocking structure to shield and protect the submersible pump.

[0015] By adopting the above technical solution, the flow-blocking structure can be used to prevent the water flow from directly impacting the submersible pump.

[0016] Preferably, the baffle structure includes a baffle, which is an arc-shaped plate structure, fixedly mounted on the upper surface of the base, disposed between the water inlet pipe and the submersible pump, and a spoiler is provided in a ring shape on the upper surface of the base.

[0017] By adopting the above technical solution, the submersible pump can be protected by using the baffle.

[0018] Compared with the prior art, the beneficial effects of the present invention are: the integrated prefabricated pump station with backflow prevention:

[0019] 1. This device has a connecting tube installed inside the outlet pipe, a sphere installed inside the connecting tube, and a limit block installed on one side of the connecting tube. When water flows from the outlet pipe and pushes the sphere toward the limit block, the water flows from the connecting tube through the discharge pump station. Conversely, when the water pushes the sphere to contact the inner wall of the connecting tube, the water flow is blocked by the sphere, thereby achieving one-way flow of water and preventing sewage backflow.

[0020] 2. This device sets a filter in the water inlet pipe to intercept the debris in the sewage. The impeller is installed on the surface of the filter. The impeller rotates under the drive of the water flow, driving the cutting blade on the surface of the impeller to rotate and break the debris in the sewage to prevent the debris from clogging the filter.

[0021] 3. This device sets a baffle between the water inlet pipe and the submersible pump to prevent the water flow from the water inlet pipe from directly impacting the submersible pump. The water flow moves to both sides under the interception of the arc-shaped baffle, and cooperates with the spoiler on the surface of the base to prevent sediment from settling and adhering to the surface of the base. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the external structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the front cross-section structure of the pump station shell of the utility model;

[0024] Figure 3 This is a schematic diagram of the front cross-section structure of the water inlet pipe and the water outlet pipe of the utility model;

[0025] Figure 4 This is a schematic diagram of the cross-sectional structure of the connecting tube of the utility model;

[0026] Figure 5 This is a schematic diagram of the cross-sectional structure of the water outlet pipe of the utility model;

[0027] Figure 6 This is a schematic diagram of the base and baffle structure of the utility model.

[0028] In the figure: 1. Pump station shell; 2. Base; 3. Water inlet pipe; 4. Water outlet pipe; 5. Connecting pipe; 6. Submersible pump; 7. Maintenance panel; 8. Escalator; 9. Maintenance port; 10. Connecting tube; 11. Sphere; 12. Limit block; 13. Filter; 14. Impeller; 15. Baffle; 16. Spoiler. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figure 1-6The utility model provides a technical solution: an integrated prefabricated pump station with backflow prevention, including a pump station shell 1, a base 2, an inlet pipe 3, an outlet pipe 4, a connecting pipe 5, a submersible pump 6, a maintenance panel 7, an escalator 8, a maintenance port 9, a connecting tube 10, a sphere 11, a limit block 12, a filter 13, an impeller 14, a baffle 15, and a spoiler 16.

[0031] The pump station housing 1 is a cylindrical structure with an open lower surface, and a base 2 is fixedly installed on the lower surface of the pump station housing 1. A water inlet pipe 3 is provided through one side surface of the pump station housing 1, and a water outlet pipe 4 is provided through the other side surface of the pump station housing 1. A connecting pipe 5 is provided through one end of the water outlet pipe 4, and the other end of the connecting pipe 5 is connected to a submersible pump 6. The submersible pump 6 is fixedly connected to the upper surface of the base 2. A maintenance plate 7 is fixedly installed on the inner wall of the pump station housing 1, and an escalator 8 is provided on the inner wall of the pump station housing 1. A maintenance port 9 is rotatably installed on the upper surface of the pump station housing 1, and the maintenance port 9 is aligned with the upper end of the escalator 8;

[0032] like Figure 1 and Figure 2 As shown, when using this device, the pump station shell 1 and the base 2 are installed, the water inlet pipe 3 is in contact with the sewage to be lifted, the outlet pipe 4 is connected to the sewage treatment pipeline, the sewage enters the pump station shell 1 from the water inlet pipe 3, the submersible pump 6 is started, and the sewage is pumped from the connecting pipe 5 into the outlet pipe 4 by the submersible pump 6. When the device needs to be maintained, the maintenance port 9 on the upper surface of the pump station shell 1 is turned to open, and the maintenance personnel enter from the maintenance port 9, use the escalator 8 to enter the pump station shell 1, stand on the surface of the maintenance plate 7, and maintain the device.

[0033] A filtering structure is provided inside the water inlet pipe 3. The filtering structure is provided with a filter screen 13 and an impeller 14 to intercept impurities in the sewage. The filtering structure includes a filter screen 13, which is fixedly mounted on the inner wall of the water inlet pipe 3. The center of the filter screen 13 is rotatably connected to the impeller 14, and the blade edge of the impeller 14 is provided with a cutting knife.

[0034] like Figure 2 、 Figure 3 and Figure 5 As shown, when sewage enters the device from the water inlet pipe 3, the debris in the sewage is intercepted by the filter screen 13 to prevent the debris from entering the interior of the pump station housing 1. At the same time, the sewage drives the impeller 14 on the surface of the filter screen 13 to rotate, and the rotating impeller 14 drives the cutting knife on the edge to move, cutting and crushing the debris in the sewage to prevent the debris from clogging the filter screen 13.

[0035] A flow blocking structure is provided on the surface of the base 2. The flow blocking structure is provided with a baffle 15 to shield and protect the submersible pump 6. The flow blocking structure includes a baffle 15. The baffle 15 is an arc-shaped plate structure. The baffle 15 is fixedly mounted on the upper surface of the base 2. The baffle 15 is provided between the water inlet pipe 3 and the submersible pump 6. A spoiler 16 is provided in an annular manner on the upper surface of the base 2.

[0036] like Figure 2 、 Figure 3 and Figure 6 As shown, after the sewage passes through the filter 13, it enters the device through the water inlet pipe 3. The sewage is blocked by the arc-shaped baffle 15 to prevent the water flow from directly impacting the submersible pump 6, thereby protecting the submersible pump 6. In addition, under the action of the arc-shaped baffle 15, the water flow moves to both sides of the baffle 15. The moving water flow and the spoiler 16 produce a relative effect, so that the water flow always keeps moving on the upper surface of the base 2, preventing the sediment in the sewage from adhering to the surface of the base 2.

[0037] An anti-backflow structure is provided inside the water outlet pipe 4. The anti-backflow structure is provided with a connecting cylinder 10 and a sphere 11 to realize the unidirectional flow of water. The anti-backflow structure includes a connecting cylinder 10, which is fixedly mounted on the inner wall of the water outlet pipe 4. Both ends of the connecting cylinder 10 are through-connected. One end of the connecting cylinder 10 is a cylindrical structure, and the other end of the connecting cylinder 10 is a truncated cone structure. A sphere 11 is provided inside the connecting cylinder 10. The diameter of the sphere 11 is larger than the truncated cone side opening of the connecting cylinder 10, and the diameter of the sphere 11 is smaller than the cylindrical side opening of the connecting cylinder 10. A limiting block 12 is provided on the cylindrical side of the connecting cylinder 10. The limiting block 12 is a hemispherical structure, and the surface of the limiting block 12 is a water-permeable grille structure. The limiting block 12 is fixedly connected to the inner wall of the water outlet pipe 4, and the limiting block 12 is aligned with the opening of the connecting cylinder 10.

[0038] like Figure 2 、 Figure 3 and Figure 4 As shown, sewage enters the connecting pipe 5 through the submersible pump 6 and flows out from the outlet pipe 4. When the sewage enters the outlet pipe 4 from the left, the water flow pushes the sphere 11 to move to the right. The sphere 11 moves to the right and contacts the surface of the limit block 12. At this time, the two ends of the connecting tube 10 are connected, and the sewage can flow out of the device from the left to the right. When the water flows into the outlet pipe 4 from the right, the water flow pushes the sphere 11 to move to the left. The sphere 11 blocks the conical side opening of the connecting tube 10. At this time, the water flow is intercepted on the right side of the connecting tube 10, thereby achieving a one-way flow effect and preventing sewage from flowing back.

[0039] Working principle: When using the integrated prefabricated pump station with backflow prevention, the filter screen 13 arranged in the water inlet pipe 3 can be used to intercept debris in the sewage. The impeller 14 on the surface of the filter screen 13 rotates under the drive of the water flow to prevent debris from clogging the filter screen 13. After the sewage enters the water inlet pipe 3, it impacts the surface of the baffle 15 to prevent the water flow from directly impacting the submersible pump 6. At the same time, the spoiler 16 on the surface of the base 2 is used to prevent sediment from adhering to the surface of the base 2. The sewage is discharged from the outlet pipe 4 under the drive of the submersible pump 6. A connecting tube 10 is arranged inside the outlet pipe 4, and a sphere 11 is arranged inside the connecting tube 10. The sphere 11 is driven by the water flow to move to realize the blocking and opening of the opening of the connecting tube 10, thereby realizing the one-way flow of water, avoiding sewage backflow, and increasing the overall practicality.

[0040] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An integrated prefabricated pump station with backflow prevention, comprising a pump station shell (1), the pump station shell (1) being a cylindrical structure with an open lower surface, and a base (2) being fixedly mounted on the lower surface of the pump station shell (1), a water inlet pipe (3) being provided through one side surface of the pump station shell (1), a water outlet pipe (4) being provided through the other side surface of the pump station shell (1), a connecting pipe (5) being provided through one end of the water outlet pipe (4), a submersible pump (6) being connected to the other end of the connecting pipe (5), the submersible pump (6) being fixedly connected to the upper surface of the base (2), a maintenance plate (7) being fixedly mounted on the inner wall of the pump station shell (1), an escalator (8) being provided on the inner wall of the pump station shell (1), a maintenance port (9) being rotatably mounted on the upper surface of the pump station shell (1), and the maintenance port (9) being aligned with the upper end of the escalator (8), characterized in that: An anti-backflow structure is provided inside the water outlet pipe (4), and the anti-backflow structure is provided with a connecting cylinder (10) and a sphere (11) to achieve unidirectional flow of water.

2. The integrated prefabricated pump station with backflow prevention according to claim 1, characterized in that: The anti-backflow structure comprises a connecting cylinder (10), wherein the connecting cylinder (10) is fixedly mounted on the inner wall of the water outlet pipe (4), and both ends of the connecting cylinder (10) are connected, one end of the connecting cylinder (10) is a cylindrical structure, and the other end of the connecting cylinder (10) is a truncated cone structure.

3. The integrated prefabricated pump station with backflow prevention according to claim 2, characterized in that: A sphere (11) is provided inside the connecting tube (10), the diameter of the sphere (11) is larger than the opening on the conical side of the connecting tube (10), and the diameter of the sphere (11) is smaller than the opening on the cylindrical side of the connecting tube (10), a limiting block (12) is provided on the cylindrical side of the connecting tube (10), the limiting block (12) is a hemispherical structure, and the surface of the limiting block (12) is a water-permeable grid structure, the limiting block (12) is fixedly connected to the inner wall of the water outlet pipe (4), and the limiting block (12) is aligned with the opening of the connecting tube (10).

4. The integrated prefabricated pump station with backflow prevention according to claim 1, characterized in that: A filtering structure is provided inside the water inlet pipe (3), and the filtering structure is provided with a filter screen (13) and an impeller (14) to intercept debris in the sewage.

5. The integrated prefabricated pump station with backflow prevention according to claim 4, characterized in that: The filtering structure comprises a filter screen (13), the filter screen (13) being fixedly mounted on the inner wall of the water inlet pipe (3), the center of the filter screen (13) being rotatably connected to an impeller (14), and a cutting knife being provided on the blade edge of the impeller (14).

6. The integrated prefabricated pump station with backflow prevention according to claim 1, characterized in that: A flow blocking structure is provided on the surface of the base (2), and a baffle (15) is provided on the flow blocking structure to shield and protect the submersible pump (6).

7. The integrated prefabricated pump station with backflow prevention according to claim 6, characterized in that: The baffle structure comprises a baffle (15), the baffle (15) being an arc-shaped plate structure, the baffle (15) being fixedly mounted on the upper surface of the base (2), the baffle (15) being arranged between the water inlet pipe (3) and the submersible pump (6), and a spoiler (16) being provided in an annular shape on the upper surface of the base (2).

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