A mechanical pump

Abstract

This utility model relates to the field of hydraulic machinery, specifically to a mechanical pump. A conical filter screen is located at the inlet, providing a large flow area and high interception efficiency, effectively blocking large particles of impurities in the water and preventing them from entering the pump body and causing damage or blockage. When water flows through the filter screen, impurities gradually accumulate on its surface. If not cleaned promptly, this leads to a slower flow rate and increased pressure within the mechanical pump. The microcontroller receives data from sensors, makes judgments, and controls an electric ball valve to open for flushing. Furthermore, the water flow from the flushing inlet drives a flushing turbine, which in turn drives a cleaning brush to clean the filter screen. This invention solves the problems of existing mechanical pumps being prone to clogging, requiring manual cleaning after clogging, which increases water flow resistance, reduces pump efficiency, and can even cause shutdowns.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic machinery technology, and in particular to a mechanical pump. Background Technology

[0002] In existing mechanical pump systems, filters or other filtration devices are typically installed at the inlet to prevent impurities from entering the pump body and causing damage or blockage. These filters intercept solid particles, suspended solids, and other impurities in the water to a certain extent, protecting the normal operation of downstream equipment. However, in practical applications, these filtration devices are easily clogged by debris, especially in cases of poor water quality or high flow rates during the rainy season. A large amount of dirt easily accumulates on the filter surface, leading to increased water flow resistance, decreased pump efficiency, and even system shutdown.

[0003] In addition, since most existing mechanical pumps rely on manual cleaning of the filter screen regularly, this not only increases maintenance costs and manpower burden, but also often requires the machine to be stopped during the cleaning process.

[0004] Therefore, there is an urgent need for a mechanical pump that can efficiently filter impurities in water and has an automatic cleaning function. Utility Model Content

[0005] To address the problem that existing mechanical pumps are prone to clogging, and that clogging requires manual cleaning, which leads to increased water flow resistance, decreased pump efficiency, and even shutdown failures.

[0006] This utility model provides a mechanical pump, including a mechanical pump body. The mechanical pump body includes an inner cavity, and an inlet and an outlet communicating with the inner cavity. The mechanical pump body also includes a flushing port communicating with the inner cavity. The mechanical pump body is equipped with a filter screen, a sensor, an inlet turbine, an electric ball valve, a flushing turbine, a cleaning brush, and a microcontroller. The filter screen has a conical structure and is located at the inlet of the mechanical pump body. The sensor is located on both sides of the filter screen and is used to monitor the changes in flow rate and pressure before and after filtration. The inlet turbine is located on the rear side of the filter screen and is used to convert the kinetic energy of the water flow into electrical energy. The electric ball valve is located at the flushing port and is used to control the opening and closing of the flushing port. The flushing turbine is located at the inlet of the filter screen and is used to drive the cleaning brush. The cleaning brush is located inside the filter screen and is used to clean the filter screen. The microcontroller is electrically connected to the sensor and the electric ball valve.

[0007] Preferably, the sensors include flow meters and pressure sensors.

[0008] Preferably, the cleaning brush includes a support rod and a bristle section connected to each other. One end of the support rod is connected to the center of the flushing water turbine, and the other end of the support rod is provided with a positioning seat. The positioning seat is connected to the filter screen cylinder, and the bristle section is in close contact with the inner wall of the filter screen cylinder.

[0009] Preferably, the cleaning brush also includes a reinforcing rib, one end of which is connected to the support rod, and the other end of which is connected to the bristles.

[0010] Preferably, the mechanical pump also includes a positive displacement pump, which is directly connected to the inlet turbine via a coupling.

[0011] The beneficial effects of this invention are reflected in the fact that the conical filter screen, located at the water inlet, has a large flow area and high interception efficiency, effectively blocking large particles of impurities in the water and preventing them from entering the pump body and causing damage or blockage. When water flows through the filter screen, impurities gradually accumulate on its surface. If not cleaned in time, this will slow the flow rate and increase the pressure inside the mechanical pump. The microcontroller receives data from sensors, makes judgments, and controls the electric ball valve to open for flushing. Furthermore, the water flow from the flushing port drives the flushing turbine to rotate, thereby driving the cleaning brush to clean the filter screen. This solves the problem of existing mechanical pumps being prone to clogging, requiring manual cleaning after clogging, which leads to increased water flow resistance, decreased pump efficiency, and even shutdown failures. Attached Figure Description

[0012] Figure 1 This is a cross-sectional structural schematic diagram of a mechanical pump provided by this utility model.

[0013] Figure 2 This is a circuit connection block diagram of a mechanical pump provided by the present invention.

[0014] In the diagram: 1-Mechanical pump body; 11-Inner cavity; 12-Inlet; 13-Outlet; 14-Rinsing port; 2-Filter screen; 3-Sensor; 4-Inlet water turbine; 5-Electric ball valve; 6-Rinsing water turbine; 7-Cleaning brush; 71-Support rod; 72-Brush bristles; 73-Reinforcing rib; 8-Microcontroller; 9-Polydisplacement pump. Detailed Implementation

[0015] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0016] Reference Figures 1-2A mechanical pump includes a pump body 1, which includes an inner cavity 11, an inlet 12 and an outlet 13 communicating with the inner cavity 11, and a flushing port 14 communicating with the inner cavity 11. The pump body 1 is equipped with a filter screen 2, a sensor 3, an inlet water turbine 4, an electric ball valve 5, a flushing water turbine 6, a cleaning brush 7, and a microcontroller 8. The filter screen 2 has a conical structure and is located at the inlet 12 of the pump body 1. The sensor 3 is located on the filter screen. On both sides, it is used to monitor the changes in flow and pressure before and after filtration; the inlet turbine 4 is located on the rear side of the filter cylinder 2 and is used to convert the kinetic energy of the water flow into electrical energy; the electric ball valve 5 is located at the flushing port 14 and is used to control the opening and closing of the flushing port 14; the flushing turbine 6 is located at the water inlet 12 of the filter cylinder 2 and is used to drive the cleaning brush 7; the cleaning brush 7 is located inside the filter cylinder 2 and is used to clean the filter cylinder 2; the microcontroller 8 is electrically connected to the sensor 3 and the electric ball valve 5 respectively.

[0017] The conical filter screen 2 is located at the inlet 12, providing a large flow area and high interception efficiency. This effectively blocks large particles of impurities in the water, preventing them from entering the pump body and causing damage or blockage. As water flows through the filter screen 2, impurities gradually accumulate on its surface. If not cleaned promptly, this slows the flow rate and increases the pressure inside the mechanical pump. The microcontroller 8 receives data from the sensor 3, makes a judgment, and controls the electric ball valve 5 to open. This causes the water flow from the flushing port 14 to drive the flushing turbine 6, which in turn drives the cleaning brush 7 to clean the filter screen 2. This solves the problem of existing mechanical pumps being prone to clogging, requiring manual cleaning after clogging, which leads to increased water flow resistance, decreased pump efficiency, and even shutdown failures.

[0018] In some implementations, sensor 3 includes a flow meter and a pressure sensor 3.

[0019] The flow meter is used to monitor the water flow on both sides of the filter screen 2 in real time. By monitoring the change in flow, it can be determined whether the filter screen 2 is blocked. When more impurities accumulate on the filter screen 2, causing the water flow to be obstructed, the flow will decrease accordingly.

[0020] Pressure sensor 3 is used to detect changes in pressure difference caused by blockage of filter cartridge 2. Under normal circumstances, the pressure difference before and after filter cartridge 2 should be relatively stable; once the pressure difference increases, it indicates that filter cartridge 2 needs to be cleaned.

[0021] When the flow meter detects a significant drop in flow or the pressure sensor 3 detects a pressure difference exceeding the set range, it indicates that the filter screen 2 may be clogged. At this time, the microcontroller 8 automatically initiates a flushing program according to preset logic, opening the electric ball valve 5 to perform a flushing operation to remove impurities from the filter screen 2. The cleaning brush 7 then cleans the filter screen 2 to restore normal water flow. This automated monitoring and response mechanism reduces the need for manual intervention, improving system maintenance efficiency and reliability.

[0022] Reference Figure 1 In some embodiments, the cleaning brush 7 includes a support rod 71 and a bristle part 72 connected to each other. One end of the support rod 71 is connected to the center of the flushing water turbine 6, and the other end of the support rod 71 is provided with a positioning seat. The positioning seat is connected to the filter screen cylinder, and the bristle part 72 is in close contact with the inner wall of the filter screen cylinder.

[0023] By connecting one end of the support rod 71 to the center of the flushing water turbine 6, the cleaning brush 7 can rotate with the rotation of the water turbine. The positioning seat ensures that the cleaning brush 7 accurately fits against the inner wall of the filter cylinder, allowing the bristles 72 to effectively contact and clean the impurities accumulated on the filter screen. This mechanical cleaning method is more efficient and thorough than manual cleaning, and it does not require machine shutdown for manual intervention, greatly improving the automation level and maintenance convenience of the mechanical pump.

[0024] Reference Figure 1 Preferably, the cleaning brush 7 also includes a reinforcing rib 73, one end of which is connected to the support rod 71, and the other end of which is connected to the bristle part 72.

[0025] The reinforcing rib 73 provides additional support points for the brush, making it more stable during operation. Furthermore, due to its small size, the reinforcing rib 73 generates less resistance in water when the cleaning brush 7 rotates.

[0026] Reference Figure 2 In some embodiments, the mechanical pump also includes a positive displacement pump 9, which is directly connected to the inlet turbine 4 via a coupling.

[0027] The positive displacement pump 9 is either a plunger pump or a gear pump. The water flow impacts the inlet turbine 4, and the inlet turbine 4 rotates, driving the positive displacement pump 9 to rotate. The foam pump 9 is used to pump the foam liquid inside the mechanical pump body 1 to the outlet 13, making the mechanical pump suitable for scenarios where water and foam liquid are mixed.

[0028] In the description of the embodiments of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "center," "top," "bottom," "top," "bottom," "inner," "outer," "inner side," and "outer side," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. "Inner side" refers to the interior or enclosed area or space. "Outer perimeter" refers to the area surrounding a specific component or specific area.

[0029] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this invention. It will be clearly understood by those skilled in the art that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0030] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mechanical pump, comprising a mechanical pump body, the mechanical pump body including an inner cavity, and an inlet and an outlet communicating with the inner cavity, characterized in that: The mechanical pump body also includes a flushing port connected to the inner cavity. The mechanical pump body is equipped with a filter screen, sensors, an inlet turbine, an electric ball valve, a flushing turbine, a cleaning brush, and a microcontroller. The filter screen has a conical structure and is located at the water inlet of the mechanical pump body. The sensors are located on both sides of the filter screen to monitor changes in flow rate and pressure before and after filtration. The inlet turbine is located at the rear of the filter screen and is used to convert the kinetic energy of the water flow into electrical energy. The electric ball valve is located at the flushing port and is used to control the opening and closing of the flushing port. The flushing turbine is located at the water inlet of the filter screen and is used to drive the cleaning brush. The cleaning brush is located inside the filter cartridge and is used to clean the filter cartridge; the microcontroller is electrically connected to the sensor and the electric ball valve respectively.

2. A mechanical pump according to claim 1, characterized in that: The sensors include a flow meter and a pressure sensor.

3. A mechanical pump according to claim 1, characterized in that: The cleaning brush includes a support rod and a bristle section connected to each other. One end of the support rod is connected to the center of the flushing water turbine, and the other end of the support rod is provided with a positioning seat. The positioning seat is connected to the filter screen cylinder, and the bristle section is in close contact with the inner wall of the filter screen cylinder.

4. A mechanical pump according to claim 3, characterized in that: The cleaning brush also includes reinforcing ribs, one end of which is connected to a support rod, and the other end of which is connected to the bristles.

5. A mechanical pump according to claim 1 or 2, characterized in that: It also includes positive displacement pumps, which are directly connected to the inlet turbine via a coupling.

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