Vertical lifting piston type water-lifting check valve structure applied to water hammer effect pump

Abstract

The utility model discloses a vertical lifting piston type water raising check valve structure applied to water hammer effect pump belongs to the field of hydroelectricity. Including valve seat, valve body, piston type valve core, be provided with water inlet channel on the valve seat, the valve body sets up the top of valve seat, and the piston type valve core sets up between valve seat and valve body vertically, and piston type valve core and fixed nut water inlet channel upper and lower opposite, the center of valve body is provided with the guide bush, and the guide bush's center is up and down movable and is provided with the guide rod, and the upper end of guide rod is connected with push -and -pull type electromagnet, and the lower extreme of guide rod is connected with piston type valve core. Compared with prior art, the water raising check valve of the application is intelligently controlled through push -and -pull type electromagnet, and the stability is strong, can automatically adjust the working condition according to actual condition, guarantees water hammer pump to run efficiency stability under different flow, pressure condition, the opening of water raising check valve is more rapid, can and drain valve synchronous, will not appear response lag, can improve the utilization of water hammer effect.

Description

Technical Field

[0001] This utility model belongs to the field of hydropower generation, and specifically relates to a vertical lifting piston type water pumping check valve structure applied to a water hammer effect pump. Background Technology

[0002] Water hammer pumps, which utilize the water hammer effect to convert low head energy into high head energy, are widely used in small hydropower stations for agricultural irrigation and mountain water supply. For water hammer pumps, the performance of their core components, the pumping valve and the drain valve, directly determines the efficiency of the entire system.

[0003] In traditional water hammer pump systems, the pumping check valve and the drain check valve play a crucial role, controlling the direction and flow rate of the water and directly affecting the pumping efficiency of the water hammer pump.

[0004] However, existing pumping check valves mainly have the following problems:

[0005] 1. Most of them have simple structures and lack intelligent control functions, making it difficult to automatically adjust the working status according to the actual working conditions. This results in unstable efficiency of water hammer pumps when operating under different flow and pressure conditions, and they are prone to failure, resulting in high maintenance costs.

[0006] 2. Traditional water hammer pumps rely on the mechanical linkage between a drain valve (such as a ball valve or plate valve) and a pumping check valve to work. The valve core of the pumping check valve has a lag in response, resulting in low water hammer pressure utilization, usually ≤50%.

[0007] 3. When the pump stops, the water hammer effect can cause pipeline impact due to the check valve closing too quickly. It is necessary to add a buffer tank or air pressure detection device to maintain the system, which makes the system structure more complicated. Utility Model Content

[0008] To solve the above problems, the primary objective of this utility model is to provide a vertical lifting piston type water pumping check valve structure for water hammer effect pumps. It is intelligently controlled by a push-pull electromagnet, has strong stability, and can automatically adjust its working state according to actual working conditions to ensure stable operating efficiency of the water hammer pump under different flow and pressure conditions.

[0009] Another objective of this invention is to provide a vertical lifting piston type water pumping check valve structure for use in water hammer effect pumps. The valve opens more quickly and can be synchronized with the drain valve without response lag, thereby improving the utilization rate of water hammer effect.

[0010] Another objective of this invention is to provide a vertical lifting piston type water pumping check valve structure for use in water hammer effect pumps, which avoids the water hammer effect from closing too quickly when the pump stops, thereby preventing pipeline impact. It eliminates the need for additional buffer tanks or air pressure detection devices for system maintenance, and simplifies the system structure of water hammer pumps.

[0011] To achieve the above objectives, the technical solution of this utility model is as follows:

[0012] This utility model provides a vertical lifting piston type water pumping check valve structure applied to a water hammer effect pump, including:

[0013] Valve seat, wherein a water inlet channel is provided on the valve seat;

[0014] A valve body, which is disposed above the valve seat;

[0015] A piston-type valve core is vertically disposed between the valve seat and the valve body, and the piston-type valve core is vertically opposite to the water inlet channel, and the water inlet channel can be opened and closed by movement.

[0016] A guide sleeve is provided at the center of the valve body, and a guide rod is movably inserted through the center of the guide sleeve. The upper end of the guide rod is connected to a push-pull electromagnet, and the lower end of the guide rod is connected to the piston valve core.

[0017] Furthermore, a "cross" is provided at the center of the valve body, and a guide sleeve mounting position is provided at the center of the cross. The guide sleeve passes through the guide sleeve mounting position of the valve body and is connected to the inner wall of the guide sleeve mounting position by threads.

[0018] Furthermore, the upper end of the guide rod is connected to the output end of the push-pull electromagnet, and the guide rod moves through the guide sleeve and the piston valve core sequentially from top to bottom. The lower end of the guide rod is threaded with a fixing nut, and the fixing nut abuts against the bottom surface of the piston valve core.

[0019] Furthermore, the guide sleeve is threadedly connected to the valve body, and a spring is also sleeved on the guide rod. The upper end of the spring abuts against the bottom surface of the guide sleeve, and the lower end of the spring abuts against the top surface of the piston-type valve core.

[0020] Furthermore, both the bottom surface of the piston valve core and the top surface of the valve seat are provided with a wear-resistant alloy layer, and a sealing ring is also provided between the bottom surface of the piston valve core and the water inlet channel of the valve seat. The wear-resistant alloy layer can reduce the wear of the piston valve core; the sealing ring can improve the sealing performance, thereby preventing high-pressure water from flowing back into the power water delivery pipe during the water lifting process.

[0021] Furthermore, the water inlet channel intersects the power water supply pipe at a 90-degree angle.

[0022] The beneficial effects of this utility model are, compared with the prior art:

[0023] First, the pumping check valve of this application is intelligently controlled by a push-pull electromagnet, which has strong stability and can automatically adjust its working state according to the actual working conditions, ensuring that the water hammer pump operates stably under different flow and pressure conditions.

[0024] Secondly, the pumping check valve opens more quickly and can be synchronized with the drain valve without any response lag, which can improve the utilization rate of the water hammer effect.

[0025] Finally, the pumping check valve can also be controlled by a push-pull electromagnet to prevent it from closing too quickly due to the water hammer effect when the pump stops, thus avoiding pipeline impact. This eliminates the need for additional buffer tanks or air pressure detection devices for system maintenance, simplifying the system structure of the water hammer pump. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of a water hammer effect pump that utilizes a vertical lifting piston type water pumping check valve.

[0027] Figure 2 This is a structural diagram of a vertical lifting piston-type water pumping check valve.

[0028] In the diagram: 1. Valve seat; 2. Inlet channel; 3. Valve body; 4. Piston valve core; 5. Guide sleeve; 6. Guide rod; 7. Push-pull electromagnet; 8. Water supply pipe; 9. Power water supply pipe; 10. Water supply and storage pressure tank; 11. Cross; 12. Fixing nut; 13. Spring; 14. Drain pipe; 15. Water supply tank. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0030] To achieve the above objectives, the technical solution of this utility model is as follows:

[0031] See Figure 1-2 As shown, this embodiment provides a vertical lifting piston type water pumping check valve structure applied to a water hammer effect pump, including:

[0032] Valve seat 1, wherein a water inlet channel 2 is provided on the valve seat 1;

[0033] Valve body 3, which is disposed above valve seat 1;

[0034] Piston valve core 4 is vertically disposed between valve seat 1 and valve body 3, and piston valve core 4 is vertically opposite to water inlet channel 2, and can open and close water inlet channel 2 by moving.

[0035] A guide sleeve 5 is provided at the center of the valve body 3. A guide rod 6 is movably inserted through the center of the guide sleeve 5. A push-pull electromagnet 7 is connected to the upper end of the guide rod 6, and the lower end of the guide rod 6 is connected to the piston valve core 4.

[0036] In this embodiment, a water supply pipe 8 is connected between the valve seat 1 and the valve body 3. The piston valve core 4 is disposed inside the water supply pipe 8. The lower end face of the valve seat 1 is connected to the flange of the power water supply pipe 9. The upper end face of the valve seat 1 is connected to the lower end flange of the water supply pipe 8. The diameter of the water inlet channel 2 opened on the valve seat 1 is less than one-third of the diameter of the piston valve core 4. The flange at the upper end of the water supply pipe 8 is connected to the bottom of the water supply and energy storage pressure tank 10 through the valve body 3.

[0037] Under normal conditions, the bottom of the piston valve core 4 is in contact with the water inlet channel 2, closing the water inlet channel 2. When the drain valve actuates to achieve the water hammer effect, the control system energizes the push-pull electromagnet, causing the output end of the push-pull electromagnet to retract and pull the guide rod 6 upward. The guide rod 6 moves upward within the guide sleeve 5, pulling the piston valve core 4 upward. The piston valve core 4 disengages from the water inlet channel 2, opening the water inlet channel 2. The high-pressure water flow generated by the water hammer effect enters the pumping pressure tank 10 through the pumping pipe 8 and is pumped up to the hydropower station for use.

[0038] Compared to traditional water hammer pumps that utilize the water source's own pressure to open and close the pumping check valve, the pumping check valve of this application is intelligently controlled by a push-pull electromagnet 7, offering high stability and automatically adjusting its operating state according to actual working conditions. This ensures stable operation of the water hammer pump under different flow and pressure conditions. Furthermore, the pumping check valve opens more rapidly, synchronizing with the drain valve without response lag, thus improving the utilization rate of the water hammer effect. The pumping check valve is also controlled by the push-pull electromagnet 7, preventing premature closure due to the water hammer effect when the pump stops, thereby avoiding pipeline impact. This eliminates the need for additional buffer tanks or air pressure detection devices for system maintenance, simplifying the water hammer pump system structure.

[0039] Furthermore, a cross 11 is provided at the center of the valve body 3, and a guide sleeve mounting position is provided at the center of the cross 11. The guide sleeve 5 passes through the guide sleeve mounting position of the valve body 3 and is connected to the inner wall of the guide sleeve mounting position by threads.

[0040] Furthermore, the upper end of the guide rod 6 is connected to the output end of the push-pull electromagnet 7, and the guide rod 6 moves through the guide sleeve 5 and the piston valve core 4 from top to bottom. The lower end of the guide rod 6 is threaded with a fixing nut 12, and the fixing nut 12 abuts against the bottom surface of the piston valve core 4.

[0041] Furthermore, the guide sleeve 5 is threadedly connected to the valve body 3, and a spring 13 is also sleeved on the guide rod 6. The upper end of the spring 13 abuts against the bottom surface of the guide sleeve 5, and the lower end of the spring 13 abuts against the top surface of the piston valve core 4. In this application, the spring 13 can provide tension or thrust to change the installation position of the piston valve core 4 on the guide rod 6, thereby adjusting the valve core stroke and optimizing the water hammer effect generation frequency under different head conditions. The stiffness of the spring 13 increases with the lifting amount of the push-pull electromagnet 7, and the preload of the spring 13 can be adjusted by the fixing nut 12 at the bottom and the guide sleeve 5.

[0042] Furthermore, a wear-resistant alloy layer is provided on the bottom surface of the piston valve core 4 and the top surface of the valve seat 1, and a sealing ring is also provided between the bottom surface of the piston valve core 4 and the water inlet channel 2 of the valve seat 1. The wear-resistant alloy layer can reduce the wear of the piston valve core 4; the sealing ring can improve the sealing performance, thereby preventing high-pressure water from flowing back into the power water supply pipe 9 during the water lifting process.

[0043] Furthermore, the water inlet channel 2 intersects the power water supply pipe 9 at a 90-degree angle.

[0044] The working process of the water hammer effect pump in this embodiment is as follows: the water supply tank 15 supplies water, and the water is introduced into the power water supply pipe 9 by the water pump. The electric control cylinder controls the check valve core to operate, and water is discharged through the drain pipe 14 to achieve the water hammer effect. At the same time, the push-pull electromagnet 7 operates, pulling the piston valve core 4 upward through the guide rod 6, opening the water inlet channel 2, so that the water in the power water supply pipe 9 can enter the pumping energy storage pressure tank 10, forming high-pressure water energy, and then pumped to a higher place for use. The push-pull electromagnet 7 is controlled by an intelligent control system, the specific implementation of which is as follows:

[0045] 1. By installing flow sensors and pressure sensors in the power water supply pipe 9, the water flow and pipeline pressure changes in the power water supply pipe 9 can be monitored in real time; a pressure sensor is installed inside the air energy storage tank to monitor the pressure changes inside the air energy storage tank, and a water level sensor is installed on the water supply tank to monitor the water level of the water source.

[0046] 2. A programmable logic controller (PLC) is used to receive signals from the sensor module, analyze and process them according to a preset program, and output control commands.

[0047] 3. The output end of the push-pull electromagnet 7 is connected to the piston valve core 4 through the guide rod 6. According to the controller's instructions, it drives the water pumping check valve core to move up and down, thereby realizing the opening and closing of the valve and the adjustment of the opening degree.

[0048] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A vertical lift piston type water lifting check valve structure applied to a water hammer effect pump, characterized in that, include: Valve seat, wherein a water inlet channel is provided on the valve seat; A valve body, which is disposed above the valve seat; A piston-type valve core is vertically disposed between the valve seat and the valve body, and the piston-type valve core is vertically opposite to the water inlet channel, and the water inlet channel can be opened and closed by movement. A guide sleeve is provided at the center of the valve body, and a guide rod is movably inserted through the center of the guide sleeve. The upper end of the guide rod is connected to a push-pull electromagnet, and the lower end of the guide rod is connected to the piston valve core.

2. The vertical lift piston type water lifting non-return valve construction for water hammer effect pump as claimed in claim 1 wherein, The valve body has a "cross" at its center, and the cross has a guide sleeve mounting position at its center. The guide sleeve passes through the guide sleeve mounting position of the valve body and is connected to the inner wall of the guide sleeve mounting position by threads.

3. The vertical lift piston type water lifting non-return valve construction for water hammer effect pump as claimed in claim 2 wherein, The upper end of the guide rod is connected to the output end of the push-pull electromagnet, and the guide rod moves through the guide sleeve and the piston valve core from top to bottom. The lower end of the guide rod is threaded with a fixing nut, which abuts against the bottom surface of the piston valve core.

4. The vertical rising piston type water lifting non-return valve construction for water hammer effect pump as claimed in claim 3 wherein, The guide sleeve is threadedly connected to the valve body, and a spring is also sleeved on the guide rod. The upper end of the spring abuts against the bottom surface of the guide sleeve, and the lower end of the spring abuts against the top surface of the piston valve core.

5. The vertical rising piston type water lifting non-return valve construction for water hammer effect pump as claimed in claim 1 wherein, The bottom surface of the piston valve core and the top surface of the valve seat are both provided with a wear-resistant alloy layer, and a sealing ring is also provided between the bottom surface of the piston valve core and the water inlet channel of the valve seat.

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