Prefabricated pump station with self-cooling control system

Abstract

The utility model relates to a prefabricated pump station with a self-cooling control system, which comprises a closed barrel, a water inlet and a water outlet are arranged on the lateral side 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 by the aid of flowing media in the shaft, heat can be quickly taken away, the control unit is guaranteed to run in a low-temperature state all the time, cooling of an air conditioner is not needed, energy consumption is reduced, and thunder and lightning influence is avoided.

Description

Technical Field

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

[0002] Prefabricated pump stations are integrated products pre-fabricated 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 existing technology, due to the limitations of internal space and heat dissipation environment, the control cabinet of the prefabricated pump station must be arranged outside so that fans or air conditioners can be used to cool the control cabinet, which increases energy consumption. When encountering harsh 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. Utility Model Content

[0004] The technical problem to be solved by the utility model 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 the internal water flow for self-cooling. It 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 utility model 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 provided on the side of the closed cylinder, at least one wellbore is provided 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 provided on the top, and the side is connected to the water outlet through a side port, a support plate is provided above the mesh hole, a submersible pump is provided on the support plate, the water suction port of the submersible pump passes through the support plate and is provided below the support plate, and the discharge port is provided above the support plate; a control unit for controlling the opening and closing of the submersible pump is provided 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 the 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. Cable sealing assemblies are provided at the locations where the cable and the external cable pass through the sealed container.

[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 port is provided at the top of the sealed cylinder, and a normally closed inspection cover is provided at the inspection port.

[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 as a whole with only the inspection port on the surface by shrinking and hiding the control unit in a sealed cylinder. In order to solve the problems of heat dissipation difficulty, high energy consumption, and strong influence of bad weather in the control system, a sealed container with a control unit is set in the wellbore. The flow medium in the wellbore can be used to cool the control unit and quickly take away the heat, ensuring that the control unit is always operating in a low-temperature state, without the need for additional 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 perform operations, thereby reducing the occurrence of safety accidents. By setting a mesh at the bottom of the wellbore, large debris can be prevented from entering the submersible pump and causing blockage. 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 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 1; 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 1; 24. Flange; 25. Sealing ring 2; 26. Screw 2.

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

[0019] The present invention will be further described below with reference to specific embodiments. It should be understood that these embodiments are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the contents of this invention, those skilled in the art may make various changes or modifications to the present invention, and that such equivalents also fall within the scope of the claims appended hereto.

[0020] The present invention provides a prefabricated pump station with a self-cooling control system, comprising a sealed cylinder 1, the side of which is provided with a water inlet 2 and a water outlet 15. Generally, the water inlet 2 is provided 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 provided in the sealed cylinder 1. The wellbore 3 is a vertically arranged hollow cylinder with mesh holes 22 around its bottom for water intake, a sealed container 5 at the top, and a side connected to the water outlet 15 via a side port 19. A support plate 21 is provided above the mesh holes 22, and a submersible pump 20 is provided on the support plate 21. The water inlet of the submersible pump 20 passes through the support plate 21 and is provided below the support plate 21, while the water outlet is provided above the support plate 21. A control unit 6 for controlling the opening and closing of the submersible pump 20 is provided in the sealed container 5.

[0021] like Figure 1 、 2 In a specific embodiment shown, a flange 24 is provided at the upper end of the sealed container 5. The lower end face of the flange 24 is sealed with the top surface of the wellbore 3 by a sealing ring 23 and fixed to the top surface of the wellbore 3 by a screw 26. It is also sealed with the sealing cover plate 8 by a sealing ring 25 and fixed to the sealing cover plate 8 on the flange 24 by a screw 7. The sealing ring ensures that the protection level of the sealed container 5 reaches IP68, protecting the internal equipment, especially the control unit 6, from 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 implement variable frequency control of the submersible pump 20. A touch screen is provided on the surface of the control unit 6 to realize human-computer interaction. A handle is provided on the top of the control unit 6. After removing the flange 24 during maintenance, the entire control unit 6 can be easily removed, saving maintenance time.

[0022] The mesh 22 has a diameter smaller than common debris that may enter the pump station, preventing 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 mutually incommunicative upper and lower portions. The submersible pump 20 alone lifts fluid from the lower portion of the wellbore 3 to the upper portion of the wellbore 3. Simultaneously, the lifted fluid cools the submersible pump 20 and the sealed container 5 above it.

[0023] When there is more than one water outlet 15, the wellbore 3 is connected to each of the different water outlets 15 via parallel pipes 14. Furthermore, a fixing bracket 16 is provided within the sidewall of the sealed cylinder to support the parallel pipes 14. In other embodiments, a number of wellbores 3 corresponding to the number of water outlets 15 may be arranged, similarly connected to the water outlets 15 via parallel pipes 14, to balance the water output and achieve control over varying 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 via a cable 4 to supply power to the submersible pump 20 and control its opening and closing. It is also connected to an external power line via an external cable 9 to supply power to the control unit 6. A cable sealing assembly 10 is provided at the locations where the cable 4 and the external cable 9 pass through the sealed container. This meets IP68 waterproof requirements 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 back into the wellbore 3 and affect the water output efficiency.

[0027] A gate valve 17 for shutting off the outflow of water is provided between the wellbore 3 and the water outlet 15. A maintenance port 12 is provided at the top of the sealed cylinder 1, and a normally closed maintenance cover 13 is provided at the maintenance port 12. In a specific embodiment, the maintenance port 12 is provided directly opposite the gate valve 17. Therefore, when inspecting equipment inside the sealed cylinder 1, the internal gate valve 17 can be closed on the ground to shut off the outflow of water, reducing the need for maintenance personnel to descend into the sealed cylinder 1 and the risk of safety accidents.

Claims

1. A prefabricated pump station with a self-cooling control system, characterized in that: It includes a sealed cylinder, the side of which is provided with a water inlet and a water outlet, and at least one wellbore is provided in the sealed cylinder. The wellbore is a vertically arranged hollow cylinder with mesh holes for water inlet around its bottom, a sealed container on the top, and a side 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 provided 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 opening.

5. The 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 is connected to an external power line via an external cable. Cable sealing components are provided at the locations where the cable and the external cable pass through the sealed container.

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 provided between the wellbore and the water outlet.

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

9. The 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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