W-shaped internal inflow grille assembly for sewage treatment based on dynamic adjustment

Abstract

The invention discloses a W-shaped internal inflow grille assembly for sewage treatment based on dynamic regulation, and relates to the technical field of sewage treatment.The operation principle of an internal inflow grille is taken as the basis, firstly, a ventilation pressure detection assembly is arranged at the upper section of the grille assembly, and then pulse flushing assemblies are arranged at the two sides of the grille assembly; according to the essence of the ventilation pressure detection assembly, on the basis that normal action of the grating assembly is not interfered, a stable low-air-volume pumping-out mode is adopted, the purpose is to detect the blocking state of the grating assembly in real time, the pulse washing assembly serves as a rear-position action structure, and the purposes of deslagging and blocking prevention are achieved in a conventional high-pressure water flow back washing mode. Different from a periodic starting mode, the backwashing action is started at a posterior position on the premise of a ventilation pressure detection mode, and in the backwashing action, a high-pressure pulse vibration mode is further provided by water flow pressure so as to enhance the deslagging effect.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and in particular to a W-shaped inner flow grille assembly for sewage treatment based on dynamic regulation. Background Art

[0002] The internal inlet screen is a dynamic filtering component, which is often used in sewage treatment processes. Please refer to the relevant content in publication numbers CN119303370A and CN118811891A. In essence, the continuously rotating filter element removes impurities attached to the filter element through high-pressure flushing while completing the filtering action.

[0003] The structural characteristics of the grating are selected based on the specific application environment. Taking the W-type as an example, the gratings of the W-type internal inlet grille are usually arranged in a wavy shape, forming a continuous angle structure similar to the letter "W". This design increases the effective filtration area of ​​the grille and optimizes water flow distribution. However, since the W-type structure is prone to impurities being stuck, a V-shaped angle flushing device combined with a vibration component is required. This device uses high-pressure water flow and mechanical shock to achieve effective cleaning. It has the advantages of high interception capacity and outstanding self-cleaning ability. However, the self-cleaning ability is further explained as follows: The W-shaped gap is prone to fibrous impurities and requires frequent cleaning (15-60 minutes / time). The maintenance cost of the high-pressure water pump and vibration device is higher than that of ordinary grilles. Even when there is no blockage in a certain period of time, the high-pressure water pump and vibration are still in the started state. The best usage state that needs to be explained is: start the high-pressure water pump or vibration device after there is a blockage problem in the grille, so as to meet the actual application environment. This application proposes a solution to this problem. Summary of the Invention

[0004] The purpose of the present invention is to provide a W-shaped internal inlet grille assembly for sewage treatment based on dynamic adjustment. Regarding the application environment and application mode of the W-shaped internal inlet, although it has the advantages of high interception capability and outstanding self-cleaning ability, in actual application, the self-cleaning mode is mostly carried out in a fixed cycle, which is difficult to adapt to the blockage problem in the actual process.

[0005] The object of the present invention can be achieved by the following technical solution: a W-shaped internal inlet grille assembly for sewage treatment based on dynamic adjustment, comprising a box body and a grille assembly, wherein the box body is provided with pulse flushing assemblies at positions on both sides of the grille assembly, and the box body is provided with a ventilation pressure detection assembly at a position above the grille assembly; The lower side position of the box body corresponding to the pulse flushing component is set as the water outlet section, and the box body is equipped with a slag falling channel corresponding to the grille component. The air permeability and pressure detection component includes an outer belt corresponding to the outer side of the grille component, an air pressure sleeve and a displacement sensor. A belt pressing plate is installed at the lower end of the air pressure sleeve, and the outer belt is in contact with the grille component through the belt pressing plate. A piston plate 1 is slidably installed in the pneumatic sleeve along the vertical direction, a spring is provided between the piston plate 1 and the bottom end of the inner wall of the pneumatic sleeve, the displacement sensor drive shaft is fixedly connected to the piston plate 1, and a through opening communicating with the interior of the pneumatic sleeve is opened in the belt pressure plate.

[0006] It is further configured as follows: a driving roller corresponding to the outer belt is provided at the internal position of the upper end of the box body, and a driving assembly corresponding to the outer belt and grille component is installed at the external position of the upper end of the box body, and a belt pressing ring corresponding to the grille component is provided in the box body.

[0007] It is further configured as follows: a plurality of W-shaped grille bars arranged transversely are provided on the inner curved surface of the grille component, a filter port is provided on the grille component, and an air port corresponding to the filter port is opened on the outer sleeve.

[0008] It is further configured as follows: the pulse flushing assembly is composed of a plurality of water jacket groups arranged transversely, a piston plate 2 is installed in an internal position of the water jacket group in a horizontal sliding direction, and a punch is installed at the center point of the piston plate 2.

[0009] It is further configured as follows: a magnetic transmission structure is provided on the outer wall position of the water jacket group corresponding to the punch, and a plurality of water outlet columns are installed on the outer wall position of the water jacket group corresponding to the grid assembly.

[0010] It is further configured as follows: a plurality of directional columns are installed in the water jacket group, the directional columns are slidably connected to the second piston plate, and pressure relief grooves are opened on the outer wall of one side of the second piston plate corresponding to the directional columns.

[0011] It is further configured as follows: a flow sheet corresponding to the grid assembly is provided on the slag falling channel, and a vertically arranged flow partition is installed at the lower side of the slag falling channel, and pendulum balls are provided at both sides of the flow partition.

[0012] It is further configured as follows: a plurality of metal balls are provided in the pendulum ball, and the pendulum balls are connected by guide ropes, the guide ropes are slidably connected to the flow partition, the setting direction of the flow partition is parallel to the sewage flow direction, and the distance between the lower end of the flow partition and the grid assembly is less than the outer diameter of the pendulum ball.

[0013] The present invention has the following beneficial effects: 1. Based on a common internal air intake grille, specifically a W-shaped internal air intake grille, the key lies in the air permeability and pressure detection assembly installed at the upper end of the grille assembly. The key to the air permeability and pressure detection assembly lies in the external pressure sleeve and the outer belt. First, the external pressure sleeve must ensure that the outer belt is stably attached to the outer wall of the grille assembly without interfering with the normal operation of the grille assembly. The key purpose is to continuously pump low-pressure air into the pressure sleeve, thereby indirectly feeding back the displacement value of the displacement sensor based on the air pressure change, thereby directly feeding back whether there is impurity blockage in a local position of the grille assembly. 2. The above content further illustrates that the air permeability and pressure detection assembly is a pre-detection structure of the present invention, while the pulse flushing assembly is a post-operation structure based on the air permeability and pressure detection assembly. The pulse flushing assembly essentially still utilizes a conventional high-pressure backwashing method, but differs in that the overall operation is not periodically initiated. Instead, the backwashing operation is initiated post-operationally based on status information fed back from the air permeability and pressure detection method. This reduces the operating and maintenance costs of components such as the high-pressure water pump and vibration device. 3. The present invention proposes a method of adding vibration assistance to the backwashing action simultaneously, but the difference is that: there is no need to add an external vibration source, but the water pressure in the backwashing action is used as the power source, and the magnetic transmission method is mainly used to "store" the water pressure and release the stored water pressure through suction / repulsion. The punch is used to instantly punch the grid assembly to achieve the purpose of rapid slag removal, thereby facilitating the fall of impurities from the grid assembly during the backwashing action. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 This is a schematic structural diagram of a W-shaped internal inlet grille assembly for sewage treatment based on dynamic regulation proposed by the present invention; Figure 2 For the present invention Figure 1 Side view of Figure 3 For the present invention Figure 1 sectional view of Figure 4 For the present invention Figure 3 Front view of Figure 5 is a cross-sectional view of the grille assembly of the present invention; Figure 6is a cross-sectional view of the air permeability and pressure detection assembly of the present invention; Figure 7 It is a cross-sectional view of the pulse flushing component of the present invention.

[0016] In the figure: 1. Box body; 2. Water jacket assembly; 3. Grille assembly; 4. Slag falling channel; 5. Drive assembly; 6. Outer belt; 7. Drive roller; 8. Belt pressing ring; 9. Displacement sensor; 10. Air pressure jacket; 11. Belt pressing plate; 12. Flow dividing plate; 13. Pendulum ball; 14. Magnetic transmission structure; 15. Piston plate 1; 16. Spring; 17. Punch; 18. Piston plate 2; 19. Pressure relief groove; 20. Directional column; 21. Water outlet column. DETAILED DESCRIPTION

[0017] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] Example 1: Regarding the application environment and application mode of W-shaped internal inflow, although it has advantages such as high interception ability and outstanding self-cleaning ability, in actual application, the self-cleaning mode is mostly carried out in a fixed cycle, which is difficult to adapt to the blockage problem in the actual process. In this regard, the following technical solution is proposed: Reference Figures 1 to 7 The W-shaped internal inlet grille assembly for sewage treatment based on dynamic adjustment in this embodiment includes a box body 1 and a grille assembly 3. Pulse flushing assemblies are provided on both sides of the box body 1 corresponding to the grille assembly 3, and a gas permeability pressure detection assembly is provided on the upper side of the box body 1 corresponding to the grille assembly 3. The lower side position of the box body 1 corresponding to the pulse flushing component is set as the water outlet section, and the box body 1 is installed with a slag drop channel 4 corresponding to the grille component 3. The air permeability and pressure detection component includes an outer belt 6, an air pressure sleeve 10 and a displacement sensor 9 corresponding to the outside of the grille component 3. A belt pressing plate 11 is installed at the lower end of the air pressure sleeve 10. The outer belt 6 is in contact with the grille component 3 through the belt pressing plate 11. A piston plate 15 is installed in the air pressure sleeve 10 for sliding in the vertical direction. A spring 16 is provided between the piston plate 15 and the bottom end of the inner wall of the air pressure sleeve 10. The transmission shaft of the displacement sensor 9 is fixedly connected to the piston plate 15. The belt pressing plate 11 is provided with a through opening connected to the interior of the air pressure sleeve 10.

[0019] Basic principle: A brief description of the operation process of the internal inlet grille structure is given. Specifically, it is based on the ring-shaped grille component 3. The grille component 3 rotates at a uniform speed under the action of the drive assembly 5. Figure 3 、 Figure 4The operation process of the grille assembly 3 is described. The grille assembly 3 can be made of metal or non-metallic materials. It is particularly important to ensure that the grille assembly 3 is flexible and maintains rotation. The internal inlet grille assembly proposed in the present invention is used as an example. The gear column maintains the rotation of the grille assembly 3, and the pressure ring 8 is mainly used to maintain the stability of the remaining positions of the grille assembly 3, but cannot interfere with the normal rotation of the grille assembly 3. This part will not be explained in detail. It needs to be further explained that: Figure 1 For example, sewage flows into the grille assembly 3 from one end of the box, impurities in the sewage are filtered by the grille assembly 3, and the filtered water flows out from the outlet section. The purpose of the W-shaped grille assembly proposed in the present invention is mainly to increase the sewage retention area, which is the basic content of the present invention.

[0020] Example 2: The following supplementary explanation is provided for the air permeability and pressure detection assembly in Example 1: A driving roller 7 corresponding to the outer belt 6 is provided at the internal position of the upper end of the box body 1, and a driving assembly 5 corresponding to the outer belt 6 and the grille component 3 is installed at the external position of the upper end of the box body 1. A belt pressing ring 8 corresponding to the grille component 3 is provided in the box body 1, and a plurality of transversely arranged W-shaped grille bars are provided on the inner curved surface position of the grille component 3, and a filter port is provided on the grille component 3, and an air port corresponding to the filter port is opened on the outer belt 6.

[0021] Solution description: The supplementary explanation of the internal inlet grille structure is that because it is essentially a filtering structure, there will definitely be a clogging problem. Impurities will specifically clog the inner wall of the grille component 3. The simplest and most effective way to deal with this is to use a backwash method. However, as shown in Example 1, the clogging problem of the grille component by impurities does not show periodic changes. For this, the present invention specifically proposes a breathable pressure detection component to Figure 4 and Figure 6 , the grille component 3 maintains a closed loop structure, and the outer belt 6 set on the outer wall of the grille component 3 is also continuously rotated by the driving roller 7. In this process, it is ensured that the local position of the outer belt 6 maintains a contact state with the grille component 3, and the contact degree between the outer belt 6 and the grille component 3 is further enhanced by the belt pressing plate 11. The belt pressing plate 11 needs to maintain a unified rotation direction and rotation speed with the grille component 3. The specific operation process includes the following contents: S1: Because the grille assembly 3 is provided with a filter port, and the outer belt 6 is also provided with an air port, the two rotate synchronously, and the diameter of the air port is larger than the diameter of the filter port. Therefore, the air port and the filter port are kept in a connected state when the two rotate. The function of the belt pressing plate 11 is to maintain the fit between the outer belt 6 and the grille assembly 3. The key is to temporarily seal the outer belt 6 so that the interior of the air pressure sleeve 6 and the interior of the filter port remain connected; S2: Based on S1, a low amount of gas will be continuously pumped into each air pressure sleeve 10. Figure 6 Explanation: If the filter is not clogged, the filter and the air port remain connected, so the gas pumped into the pneumatic sleeve 10 will also flow out of the pneumatic sleeve 10 through the air port and the filter. Therefore, the air pressure inside the pneumatic sleeve 10 will not increase, and will not generate upward pressure on the piston plate 15. However, when the filter at a local position is clogged, it will generate upward pressure on the piston plate 15, causing the displacement sensor 9 to generate a change in the displacement value, which can directly feedback whether the grille assembly 3 has a blockage problem.

[0022] Example 3: Supplementary explanation of the pulse flushing component based on the technical content of Example 2: The pulse flushing assembly consists of a plurality of water jacket groups 2 arranged in a transverse direction. A piston plate 18 is installed in the horizontal direction in the internal position of the water jacket group 2. A punch 17 is installed at the center point of the piston plate 18. The punch 17 is provided with a magnetic transmission structure 14 on the outer wall position of the inner portion of the water jacket group 2. A plurality of water outlet columns 21 are installed on the outer wall position of the water jacket group 2 corresponding to the grid assembly 3. A plurality of directional columns 20 are installed in the water jacket group 2. The directional columns 20 are slidably connected to the piston plate 18, and the directional columns 20 are corresponding to the piston plate 18. A pressure relief groove 19 is provided on the outer wall of one side, a flow sheet corresponding to the grid assembly 3 is provided on the slag flow channel 4, and a vertically arranged flow partition 12 is installed on the lower side of the slag flow channel 4. Pendulum balls 13 are provided on both sides of the flow partition 12. A plurality of metal balls are provided in the pendulum balls 13, and the pendulum balls 13 are connected by guide ropes. The guide ropes are slidably connected to the flow partition 12. The setting direction of the flow partition 12 is parallel to the sewage flow direction, and the distance between the lower end of the flow partition 12 and the grid assembly 3 is less than the outer diameter of the pendulum ball 13.

[0023] Solution Description: The pulse flushing assembly proposed in this embodiment is essentially a post-action structure of the air permeability and pressure detection assembly in the second embodiment. The following supplementary description is provided: S3: First, the installation position of each water jacket group 2 can be limited, and combined with the rotation speed and length of the grille assembly 3, then when the length of the grille assembly 3 corresponding to the belt press plate 11 and the water jacket group 2 and the moving time are calculated, it can be directly understood as: when a blockage occurs at a local position in the grille assembly 3 passing through the belt press plate 11, the moving time is obtained by calculation. After the moving time is reached, the pulse flushing assembly is started. Its essence is to inject clean water into the water jacket group 2, mainly for flushing the outside of the grille assembly 3, flushing the impurities that block the filter port and falling into the slag flow channel 4, and the following supplementary explanation is made about the slag flow channel 4: S3-1: The slag flow channel 4 needs to be set in the direction of sewage flow, specifically parallel to the width direction of the grid assembly 3. For this purpose, a pendulum ball 13 is set at its lower side to Figure 4 For example, two pendulum balls 13 are connected by a guide rope, and the guide rope can slide in the flow separator 12. The purpose is to make the pendulum balls 13 fall by their own gravity and move to the W-shaped grid in the grid assembly 3. The grid assembly 3 rotates at a constant speed and direction, so that the W-shaped grid "collides" with the pendulum balls 13. The pendulum balls 13 are equipped with multiple metal balls. The collision action between the W-shaped grid and the pendulum balls 13 generates a vibration. The vibration is mainly applied to the W-shaped grid to prevent impurities from excessively clogging the filter port. S3-2: Because the guide rope can slide on the flow divider 12, in order to prevent the guide rope from getting tangled between the two pendulum balls 13, the flow divider 12 is used to separate the two pendulum balls 13. The flow divider 12 is maintained in a vertical position, and is crucially arranged along the sewage flow direction. The distance between the lower end of the flow divider 12 and the grid assembly 3 is further limited to be less than the outer diameter of the pendulum balls 13, ensuring that the pendulum balls 13 on one side of the flow divider 12 do not enter the other side of the flow divider 12. S4: Reference Figure 7 A supplementary explanation on the backwashing action of the pulse flushing assembly is that its essence is to continuously pump water into the water jacket group 2 corresponding to the left side of the piston plate 2 18, so the water pressure in the left position inside the water jacket group 2 continues to increase, but it is necessary to use the magnetic transmission structure 14 to change the movement process of the piston plate 2 18. The magnetic transmission structure 14 is essentially a permanent magnet and an energized electromagnetic group. The permanent magnet is installed on the punch 17, and the energized electromagnetic group is installed at the other end of the water jacket group 2 and maintains sliding between the punch 17. Then, when a repulsive force is generated between the permanent magnet and the energized electromagnetic group, the piston plate 2 18 will not move to the right; S5: The overall backwashing action is further explained based on S4: in the initial state, water is continuously pumped into the water jacket group 2, but due to the repulsive force generated by the magnetic transmission structure 14, the water flow will not enter the other side of the hydraulic jacket 2, so this stage is in the "accumulation" process of water pressure, but when the repulsive force between the permanent magnet and the energized electromagnetic group decreases or disappears, the piston plate 2 18 moves rapidly under the action of continuous storage until it moves to the pressure relief groove 19, and part of the water flow quickly enters the other side of the hydraulic jacket 2 and is ejected from the water outlet column 21 to form a high-pressure water flow for backwashing, but before the water flow enters the other side of the hydraulic jacket 2, the punch 17 has already moved partially. The purpose is to use the punch 17 to impact the grille assembly to generate vibration to accelerate the impurities to fall off from the grille assembly 3. After completing the backwashing action, the repulsive force generated between the permanent magnet and the energized electromagnetic group is used again to drive the piston plate 2 18 to reset.

[0024] In summary: based on the operating principle of the internal inlet grille, first, a breathable pressure detection assembly is set for the upper position of the grille assembly, and secondly, pulse flushing assemblies are set for the positions on both sides of the grille assembly. The essence of the breathable pressure detection assembly is to adopt a stable low-volume pumping method without interfering with the normal operation of the grille assembly. Its purpose is to detect the blockage status of the grille assembly in real time. The pulse flushing assembly, as a post-action structure, uses a conventional high-pressure water backwashing method to achieve the purpose of slag removal and anti-blocking. The difference is that it is not a periodic start-up method, but a post-start backwashing action based on the breathable pressure detection method. In the backwashing action, the water pressure is further used to provide a high-pressure pulse vibration method to enhance the slag removal effect.

[0025] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to specific embodiments. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A W-shaped internal inlet grille assembly for sewage treatment based on dynamic regulation, comprising a box body (1) and a grille assembly (3), characterized in that: The box body (1) is provided with pulse flushing components at positions on both sides of the grille component (3), and the box body (1) is provided with a ventilation pressure detection component at a position on the upper side of the grille component (3); The lower side position of the box body (1) corresponding to the pulse flushing component is set as a water outlet section, and a slag flow channel (4) corresponding to the grid component (3) is installed in the box body (1), and the air permeability pressure detection component includes an outer belt (6) corresponding to the outer side of the grid component (3), an air pressure sleeve (10) and a displacement sensor (9), and a belt pressing plate (11) is installed at the lower end position of the air pressure sleeve (10), and the outer belt (6) is in contact with the grid component (3) through the belt pressing plate (11); A piston plate (15) is slidably mounted in the pneumatic sleeve (10) in the vertical direction, a spring (16) is provided between the piston plate (15) and the bottom end of the inner wall of the pneumatic sleeve (10), a drive shaft of the displacement sensor (9) is fixedly connected to the piston plate (15), and a through opening communicating with the interior of the pneumatic sleeve (10) is provided in the belt pressing plate (11).

2. The W-shaped inner inlet grille assembly for sewage treatment based on dynamic adjustment according to claim 1 is characterized in that: A driving roller (7) corresponding to the outer belt (6) is provided at an internal position on the upper end of the box body (1), and a driving assembly (5) corresponding to the outer belt (6) and the grille component (3) is installed at an external position on the upper end of the box body (1), and a belt pressing ring (8) corresponding to the grille component (3) is provided in the box body (1).

3. The W-shaped inner inlet grille assembly for sewage treatment based on dynamic adjustment according to claim 1, characterized in that: A plurality of W-shaped grille bars arranged in a transverse direction are provided on the inner curved surface of the grille component (3), a filter port is provided on the grille component (3), and an air port corresponding to the filter port is provided on the outer sleeve (6).

4. The W-shaped inner inlet grille assembly for sewage treatment based on dynamic adjustment according to claim 1, characterized in that: The pulse flushing assembly is composed of a plurality of water jacket groups (2) arranged in a transverse direction, wherein a second piston plate (18) is installed in a horizontally sliding manner in an internal position of the water jacket group (2), and a punch (17) is installed at the center point of the second piston plate (18).

5. The W-shaped inner inlet grille assembly for sewage treatment based on dynamic adjustment according to claim 4 is characterized in that: The punch (17) is provided with a magnetic transmission structure (14) at a position on the outer wall inside the water jacket group (2), and a plurality of water outlet columns (21) are installed at a position on the outer wall of the water jacket group (2) corresponding to the grid assembly (3).

6. The W-shaped inner inlet grille assembly for sewage treatment based on dynamic adjustment according to claim 4, characterized in that: A plurality of directional columns (20) are installed in the water jacket group (2), and the directional columns (20) are slidably connected to the second piston plate (18), and the directional columns (20) are provided with pressure relief grooves (19) on the outer wall of one side of the second piston plate (18) corresponding to the position.

7. The W-shaped inner inlet grille assembly for sewage treatment based on dynamic adjustment according to claim 1, characterized in that: The slag falling channel (4) is provided with flow sheets corresponding to the grid assembly (3), and a vertically arranged flow partition (12) is installed at the lower side of the slag falling channel (4), and pendulum balls (13) are provided at both sides of the flow partition (12).

8. The W-shaped inner inlet grille assembly for sewage treatment based on dynamic adjustment according to claim 7, characterized in that: The pendulum ball (13) is provided with a plurality of metal balls, and the pendulum balls (13) are connected by guide ropes, and the guide ropes are slidably connected to the flow partition (12). The flow partition (12) is arranged in a direction parallel to the sewage flow direction, and the distance between the lower end of the flow partition (12) and the grid assembly (3) is smaller than the outer diameter of the pendulum ball (13).

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