Integrated prefabricated pump station control device

Abstract

The utility model discloses an integrated prefabricated pump station control device, which relates to the technical field of prefabricated pump stations, and comprises a cylinder body, a water level measuring device is arranged in the cylinder body, the water level measuring device comprises a static pressure type liquid level instrument and a plurality of floating ball switches, the floating ball switches comprise a first floating ball switch and a second floating ball switch, the first floating ball switch is located at the ultralow liquid level, and the second floating ball switch is located at the ultrahigh liquid level. Double-liquid-level control is achieved, and the operation safety of equipment is improved.

Description

Technical Field

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

[0002] The integrated prefabricated pump station control device is a modern sewage treatment facility that integrates sewage lifting, purification and transportation. In addition to urban sewage treatment, it can collect rainwater and transport it to rivers and oceans. The integrated prefabricated pump station control device is also widely used for sewage collection, transportation and discharge in drainage systems such as factories and mining areas. Existing prefabricated pump stations may have detection errors when performing liquid level detection, resulting in dry running or overflow.

[0003] For example, Chinese patent CN111305369A, published on June 19, 2020, proposes an intelligent integrated prefabricated pump station, including a prefabricated cylinder located below the ground surface, the prefabricated cylinder is connected to an electrical control cabinet, the electrical control cabinet is located above the ground surface; the prefabricated cylinder is provided with a water inlet and outlet system and a crushing system. The prefabricated pump station is provided with a hydrostatic level gauge for liquid level detection. When the hydrostatic level gauge fails, dry running or overflow may occur. Utility Model Content

[0004] The technical problem to be solved by the utility model is that the existing prefabricated pump station liquid level detection may have detection errors. An integrated prefabricated pump station control device is proposed, which uses a static pressure liquid level meter and a float for dual detection to reduce the probability of detection errors.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: an integrated prefabricated pump station control device, including a cylinder, in which a water level measuring device is arranged, the water level measuring device includes a static pressure liquid level meter and a plurality of float switches, the float switch is divided into a first float switch and a second float switch, the first float switch is located at an ultra-low liquid level, and the second float switch is located at an ultra-high liquid level.

[0006] The integrated prefabricated pump station control device has two different water level monitoring devices, a static pressure level meter and a float, installed in the cylinder. When the static pressure level meter fails, the water level can be judged based on the float, thereby reducing the equipment failure rate and greatly improving the safety of equipment operation.

[0007] Preferably, a plurality of submersible sewage pumps are arranged in the cylinder, the submersible sewage pumps are connected to the water pump guide rail, and the submersible sewage pumps are connected to the water outlet pipeline. Two or more submersible sewage pumps are arranged in the cylinder, when the water level is below the ultra-low liquid level, the submersible sewage pumps are not started, when the water level is below the ultra-high liquid level, one submersible sewage pump is started, and when the water level exceeds the ultra-high liquid level, all submersible sewage pumps are started.

[0008] Preferably, a water inlet pipe communicating with the outside is provided on the side of the cylinder, and the end of the water inlet pipe located in the cylinder is in contact with the surface of the crushing grid. Water entering the water inlet pipe will isolate the impurities entering on the crushing grid, and the crushing grid will open regularly to crush the impurities on it, thereby avoiding blockage.

[0009] Preferably, the crushing grid is connected to a grid guide rail, a grid support is provided inside the cylinder, and when the crushing grid is in contact with the end of the water inlet pipe, it rests on the top of the grid support. The crushing grid is automatically installed through the grid guide rail, which facilitates installation and maintenance.

[0010] Preferably, a control cabinet for controlling the operation of the internal components of the cylinder is provided on the top of the cylinder. Equipped with a touch screen human-machine exchange interface, the pump station can be automatically and manually operated. With the use of a remote monitoring and operation and maintenance platform, the operation and fault status of the equipment can be observed not only on site, but also remotely, and the equipment can be started and stopped remotely according to demand. Realize remote real-time monitoring and life cycle management of the pump station, and realize centralized management of customers. No manual 24-hour on-duty is required, and the operation and maintenance cost is low.

[0011] Preferably, the water outlet pipeline is provided with a self-coupling base located at the bottom of the cylinder, one end of the self-coupling base is connected to the submersible sewage pump, and the other end of the self-coupling base is connected to a pressure pipe, and the pressure pipe extends out of the cylinder. The water in the cylinder is discharged through the water outlet pipeline.

[0012] Preferably, a check valve and a gate valve are provided in the pressure pipe. The check valve prevents backflow from the water outlet.

[0013] Preferably, the top of the cylinder is provided with an inlet and outlet, the inlet and outlet are provided with an openable cover, the inlet and outlet are provided with a detachable safety grille, and the top of the cylinder is provided with a ventilator. The inlet and outlet can facilitate maintenance personnel to enter the cylinder.

[0014] Preferably, a maintenance service platform is provided in the cylinder body to divide the cylinder body into an upper chamber and a lower chamber, and the upper chamber is provided with an escalator connected to the inlet and outlet. During maintenance, each component is maintained on the maintenance service platform.

[0015] The substantial effects of the utility model are as follows: the utility model has dual liquid level control to improve the safety of equipment operation; a crushing grid is added for automatic control to reduce labor input costs; intelligent control and remote monitoring are used to realize centralized customer management; automatic inspection is used to prevent the water pump impeller from getting stuck due to long-term non-operation of the equipment; complete protection functions are provided to ensure safe and reliable operation of the equipment; modular design is used with high integration. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1This is an overall structural diagram of the first embodiment.

[0017] Among them: 1. Cylinder, 2. Submersible sewage pump, 3. Auto-coupling base, 4. Water pump guide rail, 5. Static pressure liquid level meter, 6. Float switch, 601, second float switch, 602, first float switch, 7. Pressure pipe, 8. Check valve, 9. Gate valve, 10. Water outlet, 11. Water inlet, 12. Water inlet pipe, 13. Grille bracket, 14. Crushing grille, 15. Grille guide rail, 16. Maintenance service platform, 17. Escalator, 18. Cover plate, 19. Safety grille, 20. Handrail, 21. Ventilation pipe, 22. Control cabinet, 23. Concrete base. DETAILED DESCRIPTION

[0018] The specific implementation of the utility model is further described below through specific embodiments and in conjunction with the accompanying drawings.

[0019] Embodiment one:

[0020] Integrated prefabricated pump station control devices, such as Figure 1 As shown, it mainly includes a cylindrical body 1. The prefabricated pump station is fixed by a concrete base 23. The body part of the prefabricated pump station is located in the concrete base. The part above the concrete base is flat on the outside. The lower part is a terrace structure with the concrete base as the dividing line. There is also an extension part extending outward on the outside of the terrace structure, which is fixed to the bedrock position by bolts.

[0021] The space inside the cylinder is divided into two different chambers, one smaller on the top and one larger on the bottom, by the maintenance service platform 16. The upper chamber is used for maintenance personnel to stand during maintenance, and the lower chamber is used to store water. The upper chamber and the lower chamber are not completely isolated, and under normal circumstances, the water in the lower chamber will not spread into the upper chamber. The prefabricated pump station is provided with a water inlet 11 and a water outlet 10. The water inlet is located on the side wall of the lower chamber and is above the ultra-high liquid level. The water outlet is located on the side wall of the upper chamber, and the sewage in the lower chamber is discharged from the water outlet through the outlet pipe.

[0022] The water inlet is provided with a water inlet pipe 12, and the water inlet pipeline includes two parts: a pipeline and a water inlet soft connection. The external sewage pipeline can be connected to the pipeline on the prefabricated pump station through the water inlet soft connection, so that the sewage is discharged from the water inlet into the prefabricated pump station. The outlet pipeline includes a submersible sewage pump 2, a pressure pipeline 7, a check valve 8, a gate valve 9, a water outlet soft connection and other parts. There are multiple submersible sewage pumps. Different numbers of submersible sewage pumps are started according to different needs to meet the needs of different pumping power. In this embodiment, two submersible sewage pumps are provided. The submersible sewage pump is connected to one end of the autocoupler base 3, and the other end of the autocoupler base is connected to the bottom of the pressure pipeline. The autocoupler base is arranged at the bottom of the cylinder, so that the submersible sewage pump connected thereto can extract sewage at a lower water level. The pressure pipeline passes through the maintenance service platform and is connected to the water outlet, and the sewage is discharged from the water outlet through the action of the submersible sewage pump. The pressure pipe is equipped with a check valve and a gate valve. The check valve is located below the gate valve. The gate valve can be used to control whether the water outlet pipe is drained. The check valve can prevent sewage from flowing back into the cylinder from the outside. The end of the pressure pipe extending from the outlet is provided with a water outlet soft connection, which can connect the water outlet to the pipeline of the external sewage system to discharge the sewage in the cylinder. The submersible sewage pump is equipped with an automatic inspection function and will automatically start regularly. When the equipment is not running for a long time, it is easy to cause the water pump impeller to get stuck, and the line weathering and strain will cause the equipment to not operate normally when it needs to be used. Automatic inspection can be started regularly to prevent similar accidents from happening. Reduce the number of on-site inspections by personnel, effectively reduce maintenance costs, and improve operational safety.

[0023] A water level measuring device is arranged in the lower cylinder, and the water level measuring device includes two different measuring structures, namely, a static pressure level meter 5 and a float switch 6. The static pressure level meter is arranged in a static pressure level meter protection tube, and its top is fixed on the maintenance service platform, and its lower end passes through the lower chamber, and the bottom is located near the bottom of the lower chamber and is lower than the horizontal plane where the ultra-low liquid level is located. There are two float switches, the first float switch 602 is located at the ultra-low liquid level, and the second float switch 601 is located at the ultra-high liquid level. The static pressure level meter and the float switch do not interfere with each other. When performing liquid level detection, both the static pressure level meter and the float switch will be detected, so as to avoid the static pressure level meter from being unable to identify whether a fault occurs when the detection fails, thereby improving the reliability of water level detection.

[0024] When testing the water level, if the water level is lower than the ultra-low level, there is no need to start the submersible sewage pump for drainage. If the water level is between the ultra-low level and the ultra-high level, a submersible sewage pump is started for drainage. If the water level exceeds the ultra-high level, all submersible sewage pumps need to be started to improve drainage efficiency. The water level detection is set with a fixed detection cycle for regular detection.

[0025] The submersible sewage pump is fixed to the water pump guide rail 4. The top of the water pump guide rail is connected to the maintenance service platform, and the submersible sewage pump can be moved on the water pump guide rail. The movement of the submersible sewage pump is controlled by controlling the motor, which is convenient for the installation and transportation of the submersible sewage pump during maintenance.

[0026] An inlet and outlet are provided at the top of the cylinder, and the size of the inlet and outlet can accommodate the entry of staff. The inlet and outlet are provided with a cover plate 18 and a safety grille 19 to prevent people from accidentally falling. The cover plate is set in the form of a non-flip cover, and a handrail 20 is provided on the top of the cylinder on the other side of the cover plate flip fulcrum to facilitate the entry of maintenance personnel. An escalator 17 is provided in the upper chamber, and the escalator extends from the inlet and outlet to the maintenance service platform, and maintenance personnel enter and exit through the escalator. A vent 21 is provided on the top of the cylinder, and the vent connects the air inside and outside the cylinder.

[0027] The prefabricated pump station is also provided with a control cabinet 22, which is connected to all components that need to be controlled in the cylinder. The control cabinet is provided with a touch screen human-machine interface, through which the pump station can be manually operated. With the use of the remote monitoring and operation and maintenance platform, not only can the operation and fault status of the equipment be observed on site, but also the operation and fault status of the equipment can be viewed remotely, and the start and stop of the equipment can be remotely controlled according to needs. Realize remote real-time monitoring and life cycle management of the pump station, and realize centralized management of customers. No manual 24-hour on-duty is required, and the operation and maintenance cost is low.

[0028] The control cabinet is equipped with overload protection, short circuit protection, undervoltage protection, motor oil and water leakage protection, and overflow protection to ensure the safety of equipment and personnel, prevent equipment damage under abnormal conditions, and ensure stable and efficient operation of the pump station. A variety of protection devices are also set in the electrical equipment of the pump station, such as electrical isolation protection and grounding protection. These protection devices can ensure that the pump station equipment cuts off the power supply in time under abnormal conditions, avoids equipment damage, and ensures the normal operation of the project. The integrated prefabricated pump station control device adopts a modular design with high integration. It integrates various functional units of the pump station into an overall device with many advantages such as high-efficiency purification, low noise, small footprint, short construction period, convenient construction, low operating cost, dynamic automatic monitoring of the system, high degree of automation, and automatic alarm.

[0029] Embodiment 2:

[0030] The prefabricated pump station in this embodiment mainly includes a cylindrical body. The prefabricated pump station is fixed by a concrete base. The body part of the prefabricated pump station is located in the concrete base. The part above the concrete base is flat on the outside. The lower part is a terrace structure with the concrete base as the dividing line. There is also an extension part extending outward on the outside of the terrace structure. The extension part is fixed to the bedrock position by bolts.

[0031] The space inside the cylinder is divided into two different chambers, one smaller on the top and one larger on the bottom, through the maintenance service platform. The upper chamber is used for maintenance personnel to stand during maintenance, and the lower chamber is used to store water. The upper chamber and the lower chamber are not completely isolated, and the water in the lower chamber will not normally spread into the upper chamber. The prefabricated pump station is provided with an inlet and an outlet. The inlet is located on the side wall of the lower chamber and is above the ultra-high liquid level. The outlet is located on the side wall of the upper chamber, and the sewage in the lower chamber is discharged from the outlet through the outlet pipe.

[0032] The water inlet is provided with a water inlet pipeline, which includes a pipeline and a water inlet soft connection. The external sewage pipeline can be connected to the pipeline on the prefabricated pump station through the water inlet soft connection, so that the sewage is discharged from the water inlet into the prefabricated pump station. The water outlet pipeline includes a submersible sewage pump, a pressure pipeline, a check valve, a gate valve, a water outlet soft connection and other parts. There are multiple submersible sewage pumps. Different numbers of submersible sewage pumps are started according to different needs to meet the needs of different pumping power. In this embodiment, two submersible sewage pumps are provided. The submersible sewage pump is connected to one end of the autocoupler base, and the other end of the autocoupler base is connected to the bottom of the pressure pipeline. The autocoupler base is arranged at the bottom of the cylinder, so that the submersible sewage pump connected thereto can extract sewage at a lower water level. The pressure pipeline passes through the maintenance service platform and is connected to the water outlet, and the sewage is discharged from the water outlet through the action of the submersible sewage pump. A check valve and a gate valve are arranged in the pressure pipeline. The check valve is located below the gate valve, and the gate valve can be used to control whether the water outlet pipeline is drained, and the check valve can prevent sewage from flowing back into the cylinder from the outside. The end of the pressure pipe extending from the outlet is provided with an outlet soft connection, which can connect the outlet to the pipeline of the external sewage system, so as to discharge the sewage in the cylinder. The submersible sewage pump is equipped with an automatic inspection function and will automatically start regularly. When the equipment is not running for a long time, it is easy to cause the pump impeller to get stuck, and the line weathering and strain will cause the equipment to not operate normally when it needs to be used. Automatic inspection can be started regularly to prevent similar accidents from happening. Reduce the number of on-site inspections by personnel, effectively reduce maintenance costs, and improve operation safety.

[0033] A water level measuring device is provided in the lower cylinder, and the water level measuring device includes two different measuring structures, a static pressure level gauge and a float switch. The static pressure level gauge is provided in a static pressure level gauge protection tube, the top of which is fixed on the maintenance service platform, the lower end passes through the lower chamber, and the bottom is located near the bottom of the lower chamber and below the horizontal plane where the ultra-low liquid level is located. There are two float switches, one at the ultra-low liquid level and the other at the ultra-high liquid level. The static pressure level gauge and the float switch do not interfere with each other. When performing liquid level detection, both the static pressure level gauge and the float switch will be tested, so as to avoid the static pressure level gauge from being unable to identify whether a fault occurs when the detection fails, thereby improving the reliability of water level detection.

[0034] When testing the water level, if the water level is lower than the ultra-low level, there is no need to start the submersible sewage pump for drainage. If the water level is between the ultra-low level and the ultra-high level, a submersible sewage pump is started for drainage. If the water level exceeds the ultra-high level, all submersible sewage pumps need to be started to improve drainage efficiency. The water level detection is set with a fixed detection cycle for regular detection.

[0035] The end of the outlet pipe in the cylinder is fitted with the crushing grid 14. When sewage flows in from the water inlet, the impurities in the sewage will be blocked by the crushing grid and stay on the crushing grid. The crushing grid will start automatically at fixed time intervals. When the drum rotates, the debris will be brought to the middle of the mixing knife for crushing. When the debris is crushed into small particles, it will follow the water flow into the bottom of the cylinder of the integrated sewage lifting pump station and be discharged with the sewage through the submersible sewage pump. Thereby avoiding the deposition of impurities in the cylinder and reducing the possibility of pipeline blockage. The crushing grid is fixed to the grid guide 15. The grid guide extends from the top of the cylinder and passes through the upper chamber. The crushing grid can move on the grid guide. The movement of the grid guide is driven by the motor, which is convenient for the installation and maintenance of the crushing grid. A grid bracket 13 is arranged in the lower chamber. The grid bracket is located below the water inlet. When the crushing grid is docked in the correct position, the crushing grid can just dock on the platform at the top of the grid bracket. Therefore, the position of the crushing grid can be confirmed by the grid bracket, which is convenient for the installation and positioning of the crushing grid.

[0036] The submersible sewage pump is fixed to the water pump rail. The top of the water pump rail is connected to the maintenance service platform. The submersible sewage pump can be moved on the water pump rail. The movement of the submersible sewage pump is controlled by controlling the motor, which is convenient for the installation and transportation of the submersible sewage pump during maintenance.

[0037] The top of the cylinder is provided with an inlet and outlet, and the size of the inlet and outlet can accommodate the entry of staff. The inlet and outlet are provided with a cover plate and a safety grille to prevent personnel from accidentally falling. The cover plate is set in the form of a flap, and a handrail is set on the top of the cylinder on the other side of the cover plate flap fulcrum to facilitate the entry of maintenance personnel. An escalator is set in the upper chamber, and the escalator extends from the inlet and outlet to the maintenance service platform. Maintenance personnel enter and exit through the escalator. There is a vent at the top of the cylinder, and the vent connects the air inside and outside the cylinder.

[0038] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. Integrated prefabricated pump station control device, characterized in that: It includes a cylinder body, in which a water level measuring device is arranged. The water level measuring device includes a static pressure liquid level meter and a plurality of float switches. The float switches are divided into a first float switch and a second float switch. The first float switch is located at an ultra-low liquid level, and the second float switch is located at an ultra-high liquid level.

2. The integrated prefabricated pump station control device according to claim 1, characterized in that: A plurality of submersible sewage pumps are arranged in the cylinder, the submersible sewage pumps are connected to the water pump guide rail, and the submersible sewage pumps are connected to the water outlet pipeline.

3. The integrated prefabricated pump station control device according to claim 1, characterized in that: A water inlet pipe communicating with the outside is arranged on the side of the cylinder, and the end of the water inlet pipe located in the cylinder is in contact with the surface of the crushing grid.

4. The integrated prefabricated pump station control device according to claim 3, characterized in that: The crushing grid is connected to the grid guide rail, and a grid support is provided inside the cylinder. When the crushing grid is in contact with the end of the water inlet pipe, it rests on the top of the grid support.

5. The integrated prefabricated pump station control device according to claim 1, 2 or 3, characterized in that: A control cabinet for controlling the operation of the internal components of the cylinder is arranged on the top of the cylinder.

6. The integrated prefabricated pump station control device according to claim 2, characterized in that: The water outlet pipeline is provided with a self-coupling base located at the bottom of the cylinder, one end of the self-coupling base is connected to the submersible sewage pump, and the other end of the self-coupling base is connected to a pressure pipe, and the pressure pipe extends out of the cylinder.

7. The integrated prefabricated pump station control device according to claim 6, characterized in that: A check valve and a gate valve are arranged in the pressure pipeline.

8. The integrated prefabricated pump station control device according to claim 1, characterized in that: The top of the cylinder is provided with an inlet and outlet, the inlet and outlet are provided with an openable and closable cover plate, the inlet and outlet are provided with a detachable safety grille, and the top of the cylinder is provided with a ventilating hole.

9. The integrated prefabricated pump station control device according to claim 8, characterized in that: The cylinder is provided with a maintenance service platform for dividing the cylinder into an upper chamber and a lower chamber, and the upper chamber is provided with an escalator connected to the inlet and outlet.

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