Prefabricated pump station with self-cooling control system

Abstract

The prefabricated pump station with the self-cooling control system comprises a closed barrel, a water inlet and a water outlet are formed in the side face of the closed barrel, and at least one shaft is arranged in the closed barrel. The shaft is a vertically-arranged hollow cylinder, meshes for water inflow are formed in the periphery of the bottom of the shaft, a sealed container is arranged at the top of the shaft, the side face of the shaft is connected with the water outlet through a side opening, a supporting plate is arranged at the position above the meshes, and a submersible pump is arranged on the supporting plate; and a control unit for controlling the submersible pump to start and stop is arranged in the sealed container. The sealed container provided with the control unit is arranged in the shaft, the control unit can be cooled through the flowing medium in the shaft, heat is rapidly taken away, it is guaranteed that the control unit runs in the low-temperature state all the time, an air conditioner does not need to be additionally arranged for cooling, energy consumption is reduced, and thunder and lightning influences are avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of urban water supply and drainage equipment, and in particular relates to a prefabricated pump station with a self-cooling control system. Background Art

[0002] With the development of urbanization, the urban population is increasing, and the construction of urban infrastructure is also accelerating, especially the treatment of sewage, rainwater and industrial wastewater. In terms of farmland irrigation, the efficient promotion and use of river water has also developed rapidly in recent years under the promotion of national policies. Prefabricated pump stations are integrated products pre-made by equipment manufacturers. They are easy and quick to install on site. As a fluid lifting product, they are currently widely used in the market.

[0003] In the prior art, due to the limitations of the internal space and heat dissipation environment, the control cabinet of the prefabricated pump station must be arranged outside so that the control cabinet can be cooled by fans or air conditioners, which increases energy consumption. When encountering severe climatic environments, such as high temperature weather or heavy rain and thunderstorms, the exposed control cabinet is prone to fire or water damage. If exposed to the air for a long time, the control cabinet shell is prone to rust, and leakage or damage to electrical components often occurs, causing serious economic losses. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a prefabricated pump station with a self-cooling control system, which is buried underground to reduce noise pollution. The control system is hidden inside the pump station and relies on internal water flow for self-cooling. This not only saves energy, but also further avoids the impact of high temperature and lightning weather on the control system.

[0005] The technical solution adopted by the present invention to solve its technical problems is: to provide a prefabricated pump station with a self-cooling control system, including a closed cylinder, a water inlet and a water outlet are arranged on the side of the closed cylinder, at least one wellbore is arranged in the closed cylinder, the wellbore is a vertically arranged hollow cylinder, a mesh hole for water inlet is opened around its bottom, a sealed container is arranged on the top, and the side is connected to the water outlet through a side port, a support plate is arranged above the mesh hole, a submersible pump is arranged on the support plate, the water suction port of the submersible pump passes through the support plate and is arranged below the support plate, and the water discharge port is arranged above the support plate; a control unit for controlling the opening and closing of the submersible pump is arranged in the sealed container.

[0006] Preferably, a flange is provided at the upper end of the sealed container, and the lower end surface of the flange is sealedly connected to the top surface of the wellbore through a sealing ring 1 and is sealedly connected to a sealing cover plate through a sealing ring 2.

[0007] Preferably, when the number of the water outlets is greater than one, the wellbore is connected to different water outlets respectively through parallel pipelines.

[0008] Preferably, an exhaust valve is provided on one side of the wellbore at a position higher than the side port.

[0009] Preferably, the control unit is connected to the submersible pump via a cable and upwardly connected to an external power line via an external cable, and a cable sealing assembly is provided at the locations where the cable and the external cable pass through the sealing unit.

[0010] Preferably, a check valve is provided between the wellbore and the water outlet.

[0011] Preferably, a gate valve for cutting off the outflow of water is provided between the wellbore and the water outlet.

[0012] Preferably, an inspection opening is provided at the top of the sealed cylinder, and a normally closed inspection cover is provided at the inspection opening.

[0013] Preferably, a handle is provided on the top of the control unit.

[0014] The beneficial effect is that the present invention can realize the prefabricated pump station being buried in the ground as a whole and leaving only the inspection port on the surface by shrinking and hiding the control unit in a closed cylinder. In order to solve the problems of heat dissipation difficulty, high energy consumption, and great influence of bad weather in the control system, a sealed container with a control unit is arranged in the wellbore, and the flow medium in the wellbore can be used to cool the control unit and quickly take away the heat, thereby ensuring that the control unit is always operated in a low temperature state, without the need to increase air conditioning cooling, reducing energy consumption, and not being affected by lightning. In addition, by setting up a wellbore structure, the internal structure of the prefabricated pump station is simplified, and the internal space of the cylinder is saved. By installing the valve near the top of the cylinder, the operator is prevented from going down into the cylinder to work, thereby reducing the occurrence of safety accidents. By setting the mesh at the bottom of the wellbore, large debris can be prevented from entering the submersible pump and clogging it. By installing the air release valve inside the cylinder, the installation of the leaking parts of the prefabricated pump station is reduced, making the overall appearance of the prefabricated pump station clean and tidy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the internal structure of a prefabricated pump station with a self-cooling control system.

[0016] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0017] Among them, 1. Sealed cylinder; 2. Water inlet; 3. Wellbore; 4. Cable; 5. Sealed container; 6. Control unit; 7. Screw one; 8. Sealing cover; 9. External cable; 10. Cable sealing assembly; 11. Exhaust valve; 12. Inspection port; 13. Inspection cover; 14. Parallel pipeline; 15. Water outlet; 16. Fixing bracket; 17. Gate valve; 18. Check valve; 19. Side port; 20. Submersible pump; 21. Support plate; 22. Mesh; 23. Sealing ring one; 24. Flange; 25. Sealing ring two; 26. Screw two.

[0018] The same reference numerals in the various drawings represent the same components. DETAILED DESCRIPTION

[0019] The present invention will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms fall within the scope limited by the appended claims of the application equally.

[0020] The present invention provides a prefabricated pump station with a self-cooling control system, comprising a sealed cylinder 1, wherein a water inlet 2 and a water outlet 15 are arranged on the side of the sealed cylinder 1. Generally, the water inlet 2 is arranged on the opposite side of the water outlet 15 and the water outlet 15 is located at a higher level than the water inlet 2. At least one wellbore 3 is arranged in the sealed cylinder 1, wherein the wellbore 3 is a vertically arranged hollow cylinder, wherein a mesh hole 22 for water inlet is opened around the bottom, a sealed container 5 is arranged on the top, and the side is connected to the water outlet 15 through a side port 19. A support plate 21 is arranged above the mesh hole 22, and a submersible pump 20 is arranged on the support plate 21. The water inlet of the submersible pump 20 passes through the support plate 21 and is arranged below the support plate 21, and the water outlet is arranged above the support plate 21. A control unit 6 for controlling the opening and closing of the submersible pump 20 is arranged in the sealed container 5.

[0021] like Figure 1 , 2In a specific embodiment shown, the upper end of the sealed container 5 is provided with a flange 24, the lower end face of the flange 24 is sealed with the top surface of the wellbore 3 through a sealing ring 23 and fixed to the top surface of the wellbore 3 through a screw 26, and is sealed with a sealing cover plate 8 through a sealing ring 25 and fixed to the flange 24 through a screw 7. The sealing ring is used to ensure that the protection level of the sealed container 5 reaches IP68, and the internal equipment, especially the control unit 6, is prevented from being affected by natural disasters. At the same time, this design can ensure that the normal operation of the equipment is not affected when only the sealing cover plate 8 at the top is opened during maintenance. The control unit 6 can monitor and set various parameters of the submersible pump 20, and can also realize variable frequency control of the submersible pump 20. The surface of the control unit 6 is provided with a touch screen, which can realize human-computer interaction. A handle is provided on the top of the control unit 6. After disassembling the flange 24 during maintenance, the entire control unit 6 can be easily taken out, saving maintenance time.

[0022] The aperture of the mesh 22 is smaller than common debris that may enter the pump station, so as to prevent the debris from entering the wellbore 3 and clogging the submersible pump 20. The support plate 21 cooperates with the bottom of the submersible pump 20 to divide the wellbore 3 into two parts, upper and lower, which are not connected to each other. The fluid in the lower part of the wellbore 3 is lifted to the upper part of the wellbore 3 only by the submersible pump 20, and the submersible pump 20 and the sealed container 5 above are water-cooled by the lifted fluid.

[0023] When the number of the water outlets 15 is greater than one, the wellbore 3 is connected to different water outlets 15 through parallel pipes 14. At the same time, a fixing frame 16 is provided in the side wall of the sealing cylinder, and the fixing frame 16 is used to support the parallel pipes 14. In other embodiments, a number of wellbores 3 corresponding to the number of the water outlets 15 can also be arranged, and they are also finally connected to the water outlets 15 through the parallel pipes 14 to balance the water output and realize the control of different flow requirements.

[0024] An exhaust valve 11 is provided on one side of the wellbore 3 at a position higher than the side port 19. The exhaust valve 11 can automatically discharge the gas accumulated in the upper part of the wellbore 3 to prevent the air pressure in the wellbore 3 from being too high and affecting the water discharge.

[0025] The control unit 6 is connected to the submersible pump 20 through the cable 4 to supply power to the submersible pump 20 and control its opening and closing, and is connected to the external power line through the external cable 9 to supply power to the control unit 6. The cable 4 and the external cable 9 are both provided with a cable sealing assembly 10 at the places where they pass through the sealing unit. The IP68 waterproof requirement is met to prevent external impurities or rainwater from entering the control unit 6 and causing damage.

[0026] A check valve 18 is provided between the wellbore 3 and the water outlet 15 to prevent the fluid flowing out of the water outlet 15 after pumping water from flowing back into the wellbore 3 and affecting the water output efficiency.

[0027] A gate valve 17 for cutting off the outflow of water is provided between the wellbore 3 and the water outlet 15. An inspection port 12 is provided at the top of the sealed cylinder 1, and a normally closed inspection cover 13 is provided at the inspection port 12. In a specific embodiment, the inspection port 12 is arranged opposite to the gate valve 17, so that when inspecting the equipment inside the sealed cylinder 1, the internal gate valve 17 can be closed on the ground to cut off the outflow of water, reducing the necessity for maintenance personnel to go down into the sealed cylinder 1 for operation and reducing the risk of safety accidents.

Claims

1. A prefabricated pump station with a self-cooling control system, characterized in that: It comprises a closed cylinder, the side of which is provided with a water inlet and a water outlet, and at least one wellbore is provided in the closed cylinder, the wellbore is a vertically arranged hollow cylinder, the bottom circumference of which is provided with mesh holes for water inlet, the top is provided with a sealed container, and the side is connected to the water outlet through a side port, A support plate is provided above the mesh, a submersible pump is provided on the support plate, a water inlet of the submersible pump passes through the support plate and is provided below the support plate, and a water outlet is provided above the support plate; A control unit for controlling the opening and closing of the submersible pump is arranged in the sealed container.

2. A prefabricated pump station with a self-cooling control system according to claim 1, characterized in that: A flange is provided at the upper end of the sealed container, and the lower end surface of the flange is sealedly connected to the top surface of the wellbore through a sealing ring 1 and is sealedly connected to the sealing cover plate through a sealing ring 2.

3. A prefabricated pump station with a self-cooling control system according to claim 1, characterized in that: When the number of the water outlets is greater than one, the wellbore is connected to different water outlets respectively through parallel pipelines.

4. A prefabricated pump station with a self-cooling control system according to claim 1, characterized in that: An exhaust valve is provided on one side of the wellbore at a position higher than the side port.

5. A prefabricated pump station with a self-cooling control system according to claim 1, characterized in that: The control unit is connected to the submersible pump via a cable and connected to an external power line via an external cable. Cable sealing components are provided at the places where the cable and the external cable pass through the sealing unit.

6. A prefabricated pump station with a self-cooling control system according to claim 1, characterized in that: A check valve is provided between the wellbore and the water outlet.

7. A prefabricated pump station with a self-cooling control system according to claim 1, characterized in that: A gate valve for cutting off the outflow of water is arranged between the wellbore and the water outlet.

8. A prefabricated pump station with a self-cooling control system according to claim 1, characterized in that: An inspection opening is provided on the top of the sealed cylinder, and a normally closed inspection cover is provided at the inspection opening.

9. A prefabricated pump station with a self-cooling control system according to claim 1, characterized in that: A handle is provided on the top of the control unit.

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