Regulating valve for sewage treatment

Abstract

The utility model discloses a sewage treatment regulating valve which comprises a valve body, a first channel and a second channel are arranged between a water inlet and a water outlet of the valve body, regulating parts used for controlling sewage flow are arranged in the first channel and the second channel respectively, and switching assemblies are arranged at the water inlet and the water outlet of the valve body respectively. The switching assembly is used for switching the first channel and the second channel. The two sewage flowing channels are arranged in the valve body, so that the problem that a main valve needs to be shut down when the regulating valve is cleaned or maintained can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of regulating valves, in particular to a regulating valve for sewage treatment. Background Art

[0002] A large amount of sewage is generated during the production of circuit boards. The regulating valve is a component that controls the flow and pressure of sewage and plays a vital role in the sewage treatment system. Since the sewage may contain suspended solids, such as metal particles such as copper, lead, and tin, as well as impurities such as resins and colloids, these substances are easy to accumulate in the narrow passage of the regulating valve, causing valve blockage, affecting the smooth flow of water, and reducing treatment efficiency. At the same time, the accumulation of sediments may corrode the internal parts of the regulating valve, causing valve damage or performance degradation. Therefore, the regulating valve needs to be regularly maintained and cleaned to extend the service life of the equipment.

[0003] However, when cleaning the regulating valve, the main valve of the pipeline needs to be shut down to prevent leakage, splashing, etc. caused by the flow of sewage in the pipeline during operation. On the one hand, after shutting down the main valve, there is still sewage in the pipeline. After the sewage loses its fluidity, the impurities in the sewage may precipitate and adhere to the pipeline, thereby corroding or clogging the pipeline, causing adverse effects; on the other hand, since the restart of the sewage treatment system may require a series of inspections and commissioning to ensure the normal operation of the equipment, this is not only time-consuming, but may also incur additional costs. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model aims to provide a regulating valve for sewage treatment to solve the problem of needing to shut down the main valve when cleaning the regulating valve.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A regulating valve for sewage treatment comprises a valve body, wherein a first channel and a second channel are provided between a water inlet and a water outlet of the valve body, regulating members for controlling the flow of sewage are provided in the first channel and the second channel respectively, and a switching assembly is provided at the water inlet and the water outlet of the valve body respectively, and the switching assembly is used to switch the first channel and the second channel.

[0007] Compared with the prior art, the principles and beneficial effects of the utility model are as follows:

[0008] In this solution, the switching component can switch the sewage to the first channel or the second channel, and then use the regulating parts in the corresponding channel to control the sewage flow. In actual use, if it is necessary to clean or repair the regulating parts in one of the channels, it is only necessary to use the switching component to switch the sewage to another channel to ensure that the sewage continues to flow in the other channel, and both ends of the channel where the regulating parts to be cleaned are located remain closed, and then clean the regulating parts in the channel. In this process, there is no need to shut down the main valve, and the two sewage channels can be switched alternately. On the one hand, it can avoid shutting down the main valve when cleaning or repairing the regulating valve, thereby reducing the chance of impurities precipitating and adhering to the pipeline and reducing the adverse effects on the pipeline. On the other hand, the alternating use of the two channels can reduce the continuous working time of the regulating parts in a single channel, slow down the wear rate of each regulating part, and thus extend the service life of the entire regulating valve.

[0009] As a preferred embodiment of the utility model, the switching assembly includes a sphere, a through hole is provided in the sphere, and the sphere can be rotated to switch the through hole to communicate with the first channel or the second channel. In this scheme, the spherical surface of the sphere can block the channel, and when the sphere rotates to change the position of the two ends of the through hole, the through hole can be switched to communicate with the first channel or the second channel. When the two ends of the through hole are aligned at the water inlet and the first channel mouth, the through hole connects the water inlet and the first channel. When the sphere is rotated to align the two ends of the through hole at the water inlet and the second channel mouth, the through hole connects the water inlet and the second channel to achieve switching. In this scheme, by adopting a sphere, since the contact surface between the sphere and the channel mouth is annular, and the annular contact surface is small, when switching the channel, the friction between the sphere surface and the channel mouth is small, which can reduce the wear on the sphere and make the switching assembly more durable. At the same time, when the sphere rotates, the fluid can wash the surface of the sphere, reduce the wear on the sphere caused by impurities on the surface of the sphere, and ensure the durability of the switching assembly.

[0010] As a preferred embodiment of the utility model, the regulating member adopts a butterfly valve core. In this solution, the butterfly valve core adopted by the regulating member has a simple structure, is easy to install, operate and maintain, and helps to reduce maintenance costs.

[0011] As a preferred embodiment of the utility model, a maintenance port is provided on the valve body at a position corresponding to the position above the adjusting member, and a flange cover is connected to the maintenance port. In this solution, a maintenance port is provided above the adjusting member, and when the adjusting member needs to be cleaned or repaired, the flange cover on the maintenance port can be opened to expose the adjusting member for cleaning or repair.

[0012] As a preferred embodiment of the utility model, the first channel and the second channel are both arc-shaped channels. In this solution, by setting the first channel and the second channel to be arc-shaped, the accumulation and sedimentation of sewage when flowing in the channel can be reduced, thereby reducing maintenance requirements and maintenance costs.

[0013] As a preferred embodiment of the utility model, the valve body is rotatably connected with a rotating rod, the lower end of the rotating rod is connected to the ball, and the upper end of the rotating rod is fixed with a handle after passing through the valve body. In this solution, when switching channels, the rotating rod is rotated by holding the handle, thereby driving the ball to rotate, so that the two ends of the through hole on the ball are respectively aligned with the corresponding two opening positions that need to be connected, which is convenient for switching. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0015] Figure 2 It is a partial cross-sectional view of an embodiment of the utility model;

[0016] Figure 3 It is a cross-sectional view of an embodiment of the utility model.

[0017] Reference numerals include:

[0018] Valve body 1, water inlet 2, water outlet 3, switching assembly 4, ball 41, rotating rod 42, through hole 43, adjusting member 5, butterfly plate 51, valve stem 52, handle 6, first channel 7, second channel 8, maintenance port 9, flange cover 10. DETAILED DESCRIPTION

[0019] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various changes in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations therein are essentially for illustrative purposes rather than for limiting the present invention.

[0020] In the description of the present application, the terms "top", "bottom", "one end", "one side", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the structure referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present application.

[0021] See also Figure 1-3As shown, this embodiment discloses a regulating valve for sewage treatment, including a valve body 1, wherein an arc-shaped first channel 7 and a second channel 8 are provided between the water inlet 2 and the water outlet 3 of the valve body 1. By setting both channels to be arc-shaped, the accumulation and sedimentation of sewage when flowing in the channels can be reduced, thereby reducing the maintenance requirements and the maintenance costs. Adjusting parts 5 for controlling the flow of sewage are respectively provided in the first channel 7 and the second channel 8, and the water inlet 2 and the water outlet 3 of the valve body 1 are respectively provided with switching components 4, and the switching components 4 are used to switch the first channel 7 and the second channel 8. In actual use, if it is necessary to clean or repair the adjusting part 5 in one of the channels, it is only necessary to use the switching component 4 to switch the sewage to another channel to ensure that the sewage continues to flow in the other channel, and both ends of the channel where the adjusting part 5 to be cleaned is located are kept closed, and then the adjusting part 5 in the channel can be cleaned.

[0022] Specifically, in this solution, the regulating member 5 adopts a butterfly valve core. When adjusting the sewage flow, the fluid flow is controlled by adjusting the opening of the butterfly plate 51 of the butterfly valve core. When the butterfly plate 51 is parallel to the direction of the fluid, the valve is fully open and the flow reaches the maximum; when the butterfly plate 51 is perpendicular to the direction of the fluid, the valve is closed and the flow is cut off. A maintenance port 9 is opened on the valve body 1 at a position corresponding to the top of the butterfly valve core, and a flange cover 10 is connected to the maintenance port 9. When the regulating member 5 needs to be cleaned or repaired, the flange cover 10 on the maintenance port 9 is opened to expose the butterfly valve core for cleaning or repair. Among them, the upper end of the valve stem 52 of the butterfly valve core passes through the flange cover 10 and a handle 6 is fixed to the passing end.

[0023] The switching assembly 4 includes two balls 41 of the same structure, which are respectively arranged at the intersection of the first channel 7, the second channel 8 and the water inlet 2, and the intersection of the first channel 7, the second channel 8 and the water outlet 3. The spherical surface of the ball 41 can block the channel opening, wherein a through hole 43 with a bend is opened in the ball 41. When the ball 41 rotates, the positions of the two ends of the through hole 43 are changed, and the connection between the through hole and the first channel 7 or the second channel 8 can be switched. For specific usage process, see Figure 3As shown, for example, if the sewage needs to be switched to the first channel 7, the two balls 41 are rotated so that the two ends of the through hole 43 of the ball 41 located at the water inlet 2 are aligned at the water inlet 2 and the first channel 7 respectively, and the two ends of the through hole 43 of the ball 41 located at the water outlet 3 are aligned at the water outlet 3 and the first channel 7 respectively. At this time, the water inlet 2, the first channel 7 and the water outlet 3 are connected to form a sewage flow channel. If it is necessary to switch to the second channel 8, it is only necessary to rotate the two balls 41 so that the two ends of the through hole 43 of the ball 41 located at the water inlet 2 are aligned at the water inlet 2 and the second channel 8 respectively, and the two ends of the through hole 43 of the ball 41 located at the water outlet 3 are aligned at the water outlet 3 and the second channel 8 respectively, so that the water inlet 2, the second channel 8 and the water outlet 3 are connected. By setting the switching component 4 as a sphere 41, since the contact surface between the sphere 41 and the channel opening is annular and the annular contact surface is small, when switching channels, the friction between the surface of the sphere 41 and the channel opening is small, which can reduce the wear on the sphere 41 and make the switching component 4 more durable. At the same time, when the sphere 41 rotates, the fluid can wash the surface of the sphere 41 to achieve a self-cleaning function, thereby reducing the wear on the sphere 41 caused by impurities on the surface of the sphere 41, thereby ensuring the durability of the switching component 4. Furthermore, a rotating rod 42 is fixed on the sphere 41, and the rotating rod 42 is rotatably connected to the valve body 1, wherein a handle 6 is also fixed to the upper end of the rotating rod 42 after passing through the valve body 1. By providing the handle 6, it is convenient to grasp when switching channels, which is conducive to applying force.

[0024] Specific implementation process:

[0025] After the sewage runs in the first channel 7 for a period of time, impurities in the sewage may accumulate in the narrow channel of the butterfly plate 51, affecting the smooth flow of water. Therefore, it is necessary to clean the butterfly valve core in the first channel 7. When cleaning, first adjust the butterfly plate 51 in the second channel 8 to a suitable opening, and then use the switching component 4 to switch the sewage to the second channel 8. At this time, the sewage can continue to flow in the second channel 8, while the two ends of the first channel 7 are blocked by the spherical surfaces of the two spheres 41, respectively, and the sewage cannot flow in. At this time, the flange cover 10 at the first channel 7 can be opened to clean the butterfly valve core in the first channel 7. In this process, there is no need to shut down the main valve. After the sewage runs in the second channel 8 for a period of time again, the butterfly valve core in the second channel 8 is cleaned again to achieve the alternate switching of the two sewage channels. By using the two channels alternately, the continuous working time of the butterfly valve core in a single channel can be reduced, and then the wear rate of each butterfly valve core can be slowed down, thereby extending the service life of the entire regulating valve.

[0026] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A regulating valve for sewage treatment, comprising a valve body, characterized in that: A first channel and a second channel are provided between the water inlet and the water outlet of the valve body, and regulating parts for controlling the sewage flow are respectively provided in the first channel and the second channel. A switching component is respectively provided at the water inlet and the water outlet of the valve body, and the switching component is used to switch the first channel and the second channel.

2. The regulating valve for sewage treatment according to claim 1, characterized in that: The switching assembly comprises a sphere, a through hole is formed in the sphere, and the rotation of the sphere can switch the through hole to communicate with the first channel or the second channel.

3. The regulating valve for sewage treatment according to claim 1, characterized in that: The regulating member adopts a butterfly valve core.

4. The regulating valve for sewage treatment according to claim 3, characterized in that: A maintenance port is provided on the valve body at a position corresponding to the upper side of the regulating member, and a flange cover is connected to the maintenance port.

5. The regulating valve for sewage treatment according to claim 1, characterized in that: The first channel and the second channel are both arc-shaped channels.

6. The regulating valve for sewage treatment according to claim 2, characterized in that: A rotating rod is rotatably connected to the valve body, the lower end of the rotating rod is connected to the ball, and the upper end of the rotating rod is fixed with a handle after passing through the valve body.

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