A multi-functional valve for water pumps with a rectifier

Abstract

This utility model relates to the field of water pump control valve technology and discloses a multi-functional water pump valve with a rectifier. It includes a valve pipe with stepped grooves at both ends. A sliding tube is slidably installed inside the valve pipe, and sealing sliders are fixedly connected to both ends of the sliding tube. The sealing sliders are slidably and sealingly connected to the inner wall of the valve pipe. A spring is installed between the stepped grooves and the sealing sliders. A first discharge pipe is provided on one side of the valve pipe, and a second discharge pipe is provided on the other side. Two sets of first discharge ports are provided on the side of the sliding tube closest to the first discharge pipe. The two sets of first discharge ports are symmetrically arranged with the first discharge pipe as the center, and the distance between the two sets of first discharge ports is greater than the diameter of the first discharge pipe. This utility model solves the problems of backflow, empty consumption, and water hammer in parallel water pump systems through innovative mechanical structure and pressure regulation mechanism, while improving the system's flexibility and energy efficiency, and has significant practical value and economic benefits.

Description

Technical Field

[0001] This utility model relates to the field of water pump control valve technology, specifically a multi-functional water pump valve with a rectifier. Background Technology

[0002] Currently, multi-functional valves used at water pump outlets effectively prevent water hammer during pump start-up and shutdown at industrial frequency due to their slow-opening and slow-closing properties. However, in systems with multiple pumps operating in parallel, when the pumps are running at variable frequency, the outlet pressure changes relatively slowly compared to industrial frequency operation. Especially when the pump speed changes from high to low, the pressure difference across the multi-functional valve is small. This can easily cause the water from the industrial frequency pump to flow back to the inlet via the variable frequency pump, resulting in the pump running idle and wasting a significant amount of electrical energy. Utility Model Content

[0003] The purpose of this utility model is to provide a multi-functional valve for water pumps with a rectifier to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A multi-functional valve for a water pump with a rectifier includes a valve pipe with stepped grooves at both ends. A sliding tube is slidably installed inside the valve pipe, and sealing sliders are fixedly connected to both ends of the sliding tube. The sealing sliders are slidably and sealingly connected to the inner wall of the valve pipe. A spring is installed between the stepped grooves and the sealing sliders. A first discharge pipe is provided on one side of the valve pipe, and a second discharge pipe is provided on the other side. Two sets of first discharge ports are provided on the side of the sliding tube near the first discharge pipe. The two sets of first discharge ports are symmetrically arranged with the first discharge pipe as the center, and the distance between the two sets of first discharge ports is greater than the diameter of the first discharge pipe. A partition plate is fixedly connected to the inner wall of the sliding tube between the two sets of first discharge ports. The partition plate is located symmetrically at the two sets of first discharge ports. A second discharge port is provided on the side of the sliding tube near the second discharge pipe. The second discharge port cooperates with the second discharge pipe. A control valve is fixedly installed at the discharge port of the second discharge pipe. A sealing plate is fixedly connected inside the second discharge pipe between the control valve and the sliding tube. The sealing plate cooperates with the partition plate.

[0006] As a further embodiment of this utility model: a sealing ring installed on the outer wall of the partition is provided between the sealing plate and the partition.

[0007] As a further embodiment of this utility model: the valve tube is provided with inlets at both ends, and a feeding control component is installed in the inlet.

[0008] As a further embodiment of this utility model: the feeding control component includes a connecting pipe fixedly connected to the feed inlet, a pressure valve fixedly installed inside the connecting pipe, and a feed pipe fixedly connected to the pressure valve.

[0009] As a further improvement of this utility model, a pressure gauge is fixedly installed on the side of the connecting pipe near the valve pipe.

[0010] Compared with the prior art, the beneficial effects of this utility model are: through the synergistic effect of the sliding tube, the partition and the sealing plate, this utility model effectively prevents the liquid from flowing back to the inlet end when the water pumps are running in parallel, avoids the empty consumption problem of the variable frequency water pump, significantly reduces the waste of electrical energy, and utilizes the sliding design of the spring and the sliding tube, combined with the pressure valve and the pressure gauge, to realize the dynamic adjustment of the liquid pressure, ensure stable operation under different working conditions, and adapt to the needs of water pump switching between power frequency and variable frequency.

[0011] In summary, this utility model solves the problems of backflow, empty consumption, and water hammer in parallel water pump systems through innovative mechanical structure and pressure regulation mechanism, while improving the system's flexibility and energy efficiency, and has significant practical value and economic benefits. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a multi-functional valve for a water pump with a rectifier in this utility model.

[0013] Figure 2 This is a schematic diagram of the equiaxed side structure of a multi-functional water pump valve with a rectifier according to the present invention.

[0014] Figure 3 This is a cross-sectional structural schematic diagram of a multi-functional water pump valve with a rectifier according to the present invention.

[0015] In the diagram: 1-valve pipe, 2-first discharge pipe, 3-second discharge pipe, 4-connecting pipe, 5-pressure valve, 6-feed pipe, 7-pressure gauge, 8-step groove, 9-sliding pipe, 10-sealing slider, 11-spring, 12-first discharge port, 13-partition plate, 14-sealing ring, 15-sealing partition plate, 16-second discharge port. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] See Figures 1-3In this embodiment of the present invention, a multi-functional water pump valve with a rectifier includes a valve pipe 1, with stepped grooves 8 at both ends of the valve pipe 1. A sliding tube 9 is slidably installed inside the valve pipe 1, and sealing sliders 10 are fixedly connected to both ends of the sliding tube 9. The sealing sliders 10 are slidably and sealingly connected to the inner wall of the valve pipe 1. A spring 11 is installed between the stepped grooves 8 and the sealing sliders 10. A first discharge pipe 2 is provided on one side of the valve pipe 1, and a second discharge pipe 3 is provided on the other side of the valve pipe 1. Two sets of first discharge ports 12 are provided on the side of the sliding tube 9 closest to the first discharge pipe 2, and the two sets of first discharge ports 12 are centered on the first discharge pipe 2. The two sets of first discharge ports 12 are configured such that the distance between them is greater than the diameter of the first discharge pipe 2. A partition 13 is fixedly connected to the inner wall of the sliding pipe 9 between the two sets of first discharge ports 12. The partition 13 is located symmetrically at the two sets of first discharge ports 12. A set of second discharge ports 16 is provided on the side of the sliding pipe 9 near the second discharge pipe 3. The second discharge ports 16 cooperate with the second discharge pipe 3. A control valve is fixedly installed at the discharge port of the second discharge pipe 3. A sealing plate 15 is fixedly connected to the sliding pipe 9 between the control valve and the second discharge pipe 3. The sealing plate 15 cooperates with the partition 13.

[0018] The valve tube 1 is provided with inlets at both ends, and a feeding control component is installed in the inlet;

[0019] This invention first connects the liquid supply equipment to both ends of the valve pipe 1. Then, when it is necessary to separately transport the liquid supplied by the two sets of liquid supply equipment, this invention first closes the control valve in the second outlet 16, thereby closing the second outlet 16. At this time, the partition 13 and the sealing plate 15 cooperate with each other, and the control valve divides the second outlet pipe 3, thus preventing the two ends of the valve pipe 1 from being interconnected. Then, the hydraulic pressure of the liquid input to both ends of the valve pipe 1 is controlled by the feed control component. When it is necessary to control the flow of liquid at one end of the valve pipe 1 along the first outlet pipe 2... When the liquid pressure on one side of the valve pipe 1 is greater than that on the other side, and the pressure difference is larger, the pressure difference between the two ends of the valve pipe 1 acts on the partition 13, thereby pushing the sliding tube 9 to the side with lower pressure and compressing the spring 11. At this time, the first outlet 12 on the side with higher pressure moves into the first outlet pipe 2, thereby connecting the first outlet 12 on the side with higher pressure with the first outlet pipe 2. At this time, the liquid pumped by the liquid supply equipment connected to the valve pipe 1 on the side with higher pressure flows out along the first outlet pipe 2.

[0020] Furthermore, when the liquid supply equipment stops supplying liquid, the baffle 13 is no longer under force. At this time, the spring 11 pushes the sliding tube 9 down to automatically reset, thereby preventing water hammer and water impact in the pipeline, and also preventing liquid backflow.

[0021] Then, when the liquid pumped by the two sets of liquid supply devices at both ends of the control valve pipe 1 needs to flow out synchronously, the control valve in the second discharge pipe 3 can be opened. The hydraulic pressure of the liquid input at both ends of the control valve pipe 1 is the same through the liquid supply device. At this time, the forces on both sides of the partition 13 are the same, and the sliding pipe 9 does not slide relative to each other. That is, the first discharge port 12 will not be connected to the first discharge pipe 2. At this time, the second discharge port 16 is connected to the second discharge pipe 3. The liquid pumped by the two sets of liquid supply devices connected to the valve pipe 1 flows out along the second discharge pipe 3.

[0022] In one instance of this embodiment, please refer to Figures 1-3 A sealing ring 14 is provided between the sealing plate 15 and the partition plate 13 and installed on the outer wall of the partition plate 13. The present invention uses the sealing ring 14 to seal between the sealing plate 15 and the partition plate 13, thereby isolating the two ends of the valve pipe 1 and preventing the liquids at the two ends of the valve pipe 1 from interacting.

[0023] In one instance of this embodiment, please refer to Figures 1-3 The feeding control component includes a connecting pipe 4 fixedly connected to the feed inlet, a pressure valve 5 fixedly installed inside the connecting pipe 4, and a feed pipe 6 fixedly connected to the pressure valve 5.

[0024] This invention controls the pressure of the liquid flowing into the connecting pipe 4 from the feed pipe 6 by setting the pressure valve 5. The relationship between pressure and flow rate in the pipe follows Bernoulli's principle. Therefore, the flow rate of the liquid in the connecting pipe 4 can be controlled by controlling the pressure, thereby achieving precise control of the inflow rate of the liquid in the two sets of connecting pipes 4, and thus achieving precise control of the feed rate of the two feed ends of the valve pipe 1.

[0025] In one instance of this embodiment, please refer to Figures 1-3 A pressure gauge 7 is fixedly installed on the side of the connecting pipe 4 near the valve pipe 1. This utility model measures the pressure of the fluid flowing through the connecting pipe 4 by setting the pressure gauge 7.

[0026] The working principle of this utility model is as follows: First, the liquid supply equipment is connected through both ends of the valve pipe 1. Then, when it is necessary to separately transport the liquid supplied by the two sets of liquid supply equipment, the control valve in the second outlet 16 is closed first, and then the second outlet 16 is closed. At this time, the partition plate 13 and the sealing plate 15 cooperate with each other and divide the second outlet pipe 3 through the control valve, thereby preventing the two ends of the valve pipe 1 from being connected to each other. Then, the pressure of the liquid flowing into the connecting pipe 4 from the feed pipe 6 is controlled by the setting of the pressure valve 5. The relationship between the pressure and the flow rate in the pipe follows the Bernoulli principle. Therefore, the flow rate of the liquid in the connecting pipe 4 can be controlled by controlling the pressure, thereby achieving precise control of the inflow speed of the liquid in the two sets of connecting pipes 4, thus achieving precise control of the feed speed of the two feed ends of the valve pipe 1.

[0027] When it is necessary to control the liquid at one end of the valve pipe 1 to flow out along the first discharge pipe 2, it is only necessary to control the liquid pressure on this side of the valve pipe 1 to be greater than that on the other side through the feed control component, and the pressure difference is larger. At this time, the pressure difference between the two ends of the valve pipe 1 acts on the partition plate 13, thereby pushing the sliding tube 9 to the side with lower pressure and compressing the spring 11. At this time, the first discharge port 12 set on the side with higher pressure moves into the first discharge pipe 2, thereby making the first discharge port 12 on the side with higher pressure and the first discharge pipe 2 interconnected. At this time, the liquid pumped out by the liquid supply equipment connected to the valve pipe 1 on the side with higher pressure flows out along the first discharge pipe 2.

[0028] Then, when the liquid pumped by the two sets of liquid supply devices at both ends of the control valve pipe 1 needs to flow out synchronously, the control valve in the second discharge pipe 3 can be opened. The hydraulic pressure of the liquid input at both ends of the control valve pipe 1 is the same through the liquid supply device. At this time, the forces on both sides of the partition 13 are the same, and the sliding pipe 9 does not slide relative to each other. That is, the first discharge port 12 will not be connected to the first discharge pipe 2. At this time, the second discharge port 16 is connected to the second discharge pipe 3. The liquid pumped by the two sets of liquid supply devices connected to the valve pipe 1 flows out along the second discharge pipe 3.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., 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 water pump multifunctional valve with rectifying device, comprising a valve pipe, characterized in that, The valve tube has stepped grooves at both ends, and a sliding tube is slidably installed inside the valve tube. Sealing sliders are fixedly connected to both ends of the sliding tube, and the sealing sliders are slidably and sealingly connected to the inner wall of the valve tube. A spring is installed between the stepped grooves and the sealing sliders. A first discharge pipe is provided on one side of the valve tube, and a second discharge pipe is provided on the other side. Two sets of first discharge ports are provided on the side of the sliding tube closest to the first discharge pipe, symmetrically arranged with the first discharge pipe as the center, and the distance between the two sets of first discharge ports is greater than the diameter of the first discharge pipe. A partition plate is fixedly connected to the inner wall of the sliding tube between the two sets of first discharge ports, and the partition plate is located symmetrically at the two sets of first discharge ports. A second discharge port is provided on the side of the sliding tube closest to the second discharge pipe, and the second discharge port cooperates with the second discharge pipe. A control valve is fixedly installed at the discharge port of the second discharge pipe, and a sealing plate is fixedly connected inside the second discharge pipe between the control valve and the sliding tube, and the sealing plate cooperates with the partition plate.

2. The multifunctional valve with rectifying device for water pump according to claim 1, characterized in that, A sealing ring installed on the outer wall of the partition is provided between the sealing plate and the partition.

3. The multifunctional valve with rectifier device for water pump according to claim 1, characterized in that, The valve tube is provided with inlets at both ends, and a feeding control component is installed in the inlet.

4. The multifunctional valve with rectifier device for water pump according to claim 3, characterized in that, The feeding control component includes a connecting pipe fixedly connected to the feed inlet, a pressure valve fixedly installed inside the connecting pipe, and a feed pipe fixedly connected to the pressure valve.

5. The multifunctional valve with rectifier device for water pump according to claim 4, characterized in that, A pressure gauge is fixedly installed on the side of the connecting pipe near the valve pipe.

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