Automatic pressure regulating valve for sewage treatment

Abstract

The utility model discloses an automatic pressure regulating valve for sewage treatment, which relates to the technical field of sewage treatment and comprises a water pipe, a regulating plate inserted in the water pipe in a penetrating manner, obliquely arranged upwards along the water flow direction and capable of sliding along the oblique direction, an impact plate vertically fixed on the upstream face of the regulating plate, and a pressure regulating valve arranged on the upstream face of the impact plate, the length direction of the impact plate is perpendicular to the water flow direction, one end of the spring is fixed to the downstream face of the impact plate, and the spring is used for extruding the impact plate towards the water pipe in the length direction of the adjusting plate. By arranging the adjusting plate obliquely arranged in the water flow direction and the impact plate fixed to the upstream face of the adjusting plate and combining the elastic force effect of the spring, the function that the size of a water flow channel can be automatically adjusted along with water pressure changes without external control is achieved, the self-adaptive capacity of the sewage treatment system under the variable-pressure working condition is improved, and the service life of the sewage treatment system is prolonged. And the problem of equipment impact or insufficient flow caused by sudden change of water pressure is avoided.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to an automatic pressure regulating valve for wastewater treatment. Background Technology

[0002] In wastewater treatment, the flow rate and pressure of wastewater often fluctuate, especially in municipal systems using shared sewage networks or combined sewer systems, where drainage pressure may change significantly over time. Current technologies often employ electrically controlled valves or manual regulating devices to control the influent flow.

[0003] In existing technologies, passive flow limiting devices, such as flow limiting orifice plates or check valves, are used. However, their adjustment capabilities are limited, and they cannot automatically adjust the flow area according to changes in water pressure, which may cause excessive water flow impact under high pressure. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an automatic pressure regulating valve for sewage treatment.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] An automatic pressure regulating valve for sewage treatment, comprising:

[0007] Water pipes are used to transport sewage;

[0008] An adjusting plate is inserted through the water pipe and is inclined upward along the direction of water flow. It can slide along the inclined direction. The adjusting plate is used to restrict the flow of water. Initially, the bottom of the adjusting plate maintains a small gap with the inner wall of the water pipe.

[0009] The impact plate is fixed vertically to the water-facing surface of the aforementioned regulating plate, with its length direction perpendicular to the water flow direction.

[0010] A spring, one end of which is fixed to the back surface of the impact plate, is used to press the impact plate along the length of the adjusting plate toward the water pipe.

[0011] When the water pressure in the pipe increases, the water exerts a force on the impact plate, causing the impact plate and the regulating plate to move away from the water pipe along the length of the regulating plate, thus increasing the gap between the regulating plate and the inner wall of the water pipe.

[0012] Preferably, the angle between the aforementioned regulating plate and the water flow direction is 20 to 40 degrees.

[0013] Preferred options also include:

[0014] The screw, which is threadedly connected to the aforementioned water pipe, is connected to the other end of the spring and is used to compress the spring.

[0015] Preferably, the inner wall of the water pipe is fixed on both sides of the adjusting plate with baffles that cooperate with the adjusting plate to seal the inner wall of the water pipe.

[0016] Preferably, a support rod inclined toward the center of the water pipe is fixed to the side of the baffle near the middle of the water pipe, and the support rod is used to support the adjusting plate.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] 1. By setting an adjusting plate that is inclined along the water flow direction and an impact plate fixed on the water-facing side, and combined with the elastic force of the spring, the function of automatically adjusting the size of the water flow channel according to the water pressure change without external control is realized. This improves the self-adaptive ability of the sewage treatment system under variable pressure conditions and avoids equipment impact or insufficient flow caused by sudden changes in water pressure.

[0019] 2. By setting a screw and connecting it to a spring, users can finely adjust the spring preload according to the water pressure at the site, thereby flexibly setting the start-up response threshold of the adjustment plate, improving the adaptability of the device in different sewage treatment scenarios, and enhancing its practicality and adjustment range. Attached Figure Description

[0020] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0021] Figure 1 This is a schematic diagram of the automatic pressure regulating valve for this wastewater treatment system.

[0022] Figure 2 A schematic diagram of the internal structure of water pipes and guide channels;

[0023] Figure 3 for Figure 2 A structural diagram of the second state.

[0024] Explanation of annotations in the diagram:

[0025] 1. Water pipe; 11. Baffle; 12. Support rod;

[0026] 2. Adjusting plate; 21. Impact plate; 22. Guide channel;

[0027] 3. Spring; 4. Screw. Detailed Implementation

[0028] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0029] Example

[0030] like Figures 1-3 As shown, an automatic pressure regulating valve for sewage treatment includes a water pipe 1, an adjusting plate 2, an impact plate 21, and a spring 3. The water pipe 1 is used to transport sewage.

[0031] In one embodiment, such as Figures 2-3 As shown, the regulating plate 2 is inserted through the water pipe 1, and is inclined upward along the water flow direction. It can slide along the inclined direction. The regulating plate 2 is used to restrict the flow of water. Initially, the bottom of the regulating plate 2 maintains a small gap with the inner wall of the water pipe 1. The impact plate 21 is fixed vertically to the water-facing side of the regulating plate 2, and its length direction is perpendicular to the water flow direction. One end of the spring 3 is fixed to the back side of the impact plate 21. It is used to squeeze the impact plate 21 along the length direction of the regulating plate 2 towards the water pipe 1. When the water pressure in the water pipe 1 increases, the water exerts a force on the impact plate 21, pressing the impact plate 21 and the regulating plate 2 to move away from the water pipe 1 along the length direction of the regulating plate 2, increasing the gap between the regulating plate 2 and the inner wall of the water pipe 1.

[0032] This automatic pressure regulating valve for wastewater treatment passively regulates water flow by using a tiltable, movable adjusting plate 2 and a water-facing impact plate 21, in conjunction with the pressure of a spring 3. When the water pressure is low, the adjusting plate 2 remains almost stationary, maintaining only a small gap; however, when the water pressure increases, the water flow pushes the impact plate 21 and the adjusting plate 2 upwards, increasing the water flow channel and achieving automatic regulation. It has a simple structure, requires no electrical control, and responds promptly.

[0033] By cooperating with the adjusting plate 2 and the baffle 11, the water flow in the water pipe 1 is blocked. When the water pressure in the water pipe 1 is low, due to the force of the spring 3 on the impact plate 21, the impact plate 21 and the adjusting plate 2 will not move, and only the gap between the bottom of the adjusting plate 2 and the inner wall of the water pipe 1 is maintained to allow a small amount of water to flow.

[0034] When the water pressure at the inlet of water pipe 1 increases, the water pressure on the side of regulating plate 2 facing impact plate 21 also increases, and the force of water on impact plate 21 increases. When the water pressure continues to increase, the force of water on impact plate 21 is greater than the force of spring 3 on impact plate 21, causing impact plate 21 to move with regulating plate 2 towards guide channel 22 under the action of water impact, increasing the size of the gap between the bottom of regulating plate 2 and the inner wall of water pipe 1, thereby increasing the speed of water flow between the bottom of regulating plate 2 and the inner wall of water pipe 1, and automatically adjusting the water pressure on the side of regulating plate 2 facing impact plate 21.

[0035] When different flow rates need to be adjusted according to different water pressures, the screw 4 is rotated to compress or expand the spring 3 as needed. This changes the force exerted by the spring 3 on the impact plate 21 when the impact plate 21 and the regulating plate 2 are initially stationary. Consequently, the force exerted by the returning water on the impact plate 21, causing it to move, varies, thus adapting to different water pressures. Furthermore, when it is necessary to increase the water pressure that the automatic pressure regulator of this wastewater treatment system can handle, rotating the screw 4 compresses the spring 3, increasing the force exerted by the spring 3 on the impact plate 21. This further reduces the movable range of the impact plate 21, thereby reducing the movable range of the regulating plate 2 and decreasing the gap between the regulating plate 2 and the inner wall of the water pipe 1.

[0036] In one embodiment, such as Figures 2-3 As shown, the angle between the regulating plate 2 and the water flow direction is 20 to 40 degrees. By fixing this angle during the design, the tilt state of the regulating plate 2 is ensured, which reduces the angle between the water and the impact plate 21, allowing the water flow to better act on the impact plate 21 on the regulating plate 2. This improves the effect of the water on the impact plate 21.

[0037] In one embodiment, such as Figures 2-3 As shown, it also includes a screw 4, which is threadedly connected to the water pipe 1 and connected to the other end of the spring 3. This screw is used to compress the spring 3. By rotating the screw 4, the compression of the spring 3 can be adjusted, thereby adjusting the force exerted by the spring 3 on the impact plate 21. Manually rotating the screw 4 can adjust the initial pre-compression force of the spring 3, thus precisely controlling the critical water pressure at which the regulating plate 2 begins to move. This allows the device to adapt to different water pressure requirements, improving its applicability and versatility.

[0038] In one embodiment, such as Figures 2-3As shown, baffles 11 are fixed on both sides of the regulating plate 2 to seal the inner wall of the water pipe 1. These baffles 11 are fixedly installed on the inner walls of the water pipe 1 on both sides of the regulating plate 2, fitting snugly against the edges of the regulating plate 2 to collaboratively seal and guide the water flow. This prevents leakage or water detour from the sides of the regulating plate 2, strengthens the flow-limiting function of the regulating plate 2, and improves sealing and flow guidance. This structure also helps to stabilize the regulating plate 2 and prevent it from swaying left and right. A support rod 12, inclined towards the center of the water pipe 1, is fixed to the side of the baffle 11 closest to the middle of the baffle 1. The support rod 12 supports the regulating plate 2, acting as a limiting support or guide rail, providing oblique support during the upward sliding of the regulating plate 2 under force, preventing it from sliding down or tilting, and improving the structural stability and response consistency of the device. Furthermore, tilting towards the center of the water pipe 1 allows the water flow to carry away impurities hanging on the support rod 12, preventing impurities from remaining on the support rod 12.

[0039] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. An automatic pressure regulating valve for sewage treatment, characterized in that, include: Water pipe (1), which is used to transport sewage; An adjusting plate (2) is inserted through the water pipe (1). It is inclined upward along the direction of water flow and can slide along the inclined direction. The adjusting plate (2) is used to restrict the passage of water flow. Initially, the bottom of the adjusting plate (2) maintains a small gap with the inner wall of the water pipe (1). Impact plate (21) is fixed vertically to the water-facing surface of the regulating plate (2), and its length direction is perpendicular to the water flow direction; Spring (3), one end of which is fixed to the back surface of the impact plate (21), is used to press the impact plate (21) in the direction of the water pipe (1) along the length of the adjusting plate (2); When the water pressure in the water pipe (1) increases, the water exerts a force on the impact plate (21), causing the impact plate (21) and the regulating plate (2) to move away from the water pipe (1) along the length of the regulating plate (2), thus increasing the gap between the regulating plate (2) and the inner wall of the water pipe (1).

2. The automatic pressure regulating valve for sewage treatment according to claim 1, characterized in that: The angle between the regulating plate (2) and the direction of water flow is 20 to 40 degrees.

3. The automatic pressure regulating valve for sewage treatment according to claim 2, characterized in that: Also includes: A screw (4), which is threaded to the water pipe (1) and connected to the other end of the spring (3), is used to compress the spring (3).

4. The automatic pressure regulating valve for sewage treatment according to claim 1, characterized in that: The inner wall of the water pipe (1) is fixed with baffles (11) on both sides of the regulating plate (2) to block the inner wall of the water pipe (1).

5. The automatic pressure regulating valve for sewage treatment according to claim 4, characterized in that: The baffle (11) is fixed with a support rod (12) that is inclined toward the center of the water pipe (1) on the side near the middle of the water pipe (1). The support rod (12) is used to support the adjusting plate (2).

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