Self-adaptive flow adjusting device for communication port of water treatment sedimentation tank

Abstract

The invention belongs to the technical field of sewage treatment, and particularly relates to a water treatment sedimentation tank communication port self-adaptive flow adjusting device which comprises a tank body and a partition wall arranged in the tank body, and a communication hole is formed in the side wall of the partition wall. The valve body frame is fixedly arranged in the communicating hole, and a water body channel is formed in the valve body frame; and the flow adjusting mechanism is arranged in the water body channel, and the flow adjusting mechanism is used for changing the overflowing area of the water body channel. The water level difference of the two sides of the partition wall is sensed through the pressure sensing mechanism, the linkage transmission mechanism drives the flow adjusting mechanism to dynamically change the overflowing area of the water channel, self-adaptive flow adjustment is achieved, flow fluctuation can be coped, the water level can be balanced, and the sedimentation time and efficiency are guaranteed; meanwhile, the internal pressure sensing diaphragm and the filter screen are convenient to clean or replace, and the maintenance difficulty is reduced; in addition, the cost is low, the manual operation and maintenance burden is reduced, and the problem of high failure rate of an electric or pneumatic device is avoided.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of sewage treatment, and particularly relates to a self-adaptive flow regulating device for a communication opening of a water treatment sedimentation tank. BACKGROUND

[0002] In the sedimentation process section of a sewage treatment plant, multiple sedimentation tanks in series or parallel (or a large sedimentation tank divided into several sedimentation sections by partition walls) are often used. In order to ensure the smoothness of the water flow and the reasonable sedimentation time, a communication hole or a short pipe is usually arranged below the partition wall between adjacent sedimentation tanks (sections) to allow the water flow to slowly and unidirectionally flow from one tank (section) to another tank (section).

[0003] The commonly used ways at present are fixed-opening communication holes (such as pipes or gate openings of fixed sizes) or manually adjusted gate valves / gate plates, which have the following significant shortcomings:

[0004] 1. Inability to adapt to flow fluctuations: When the total inflow or water quality changes (such as low flow at night and high turbidity water at peak time), fixed opening may result in excessively low flow rate (forming dead water area and sludge deposition blockage) or excessively high flow rate (shortening the actual sedimentation time, reducing the sedimentation efficiency, and increasing the effluent turbidity), even if a manually adjusted gate valve is provided, it is difficult to achieve real-time and accurate adjustment.

[0005] 2. Water level imbalance: Flow changes or uneven sludge accumulation in the sedimentation tank may cause an unexpected water level difference between adjacent tanks, and an excessively large water level difference may force the water flow to accelerate through the communication opening, which also shortens the sedimentation time, and an excessively small water level difference may cause accumulation due to insufficient flow rate.

[0006] 3. Lag in manual adjustment: Manual adjustment relies on the experience of operators, and the response is slow, making it difficult to maintain the stability and consistency of the sedimentation time of each tank, and increasing the operation and maintenance burden.

[0007] 4. Energy consumption or complexity problems: Although there are electric or pneumatic regulating valves, these solutions require external power and control systems, which are high in cost, complex in structure, high in energy consumption, and prone to failure or corrosion in the water treatment environment. SUMMARY

[0008] The purpose of the present application is to provide a self-adaptive flow regulating device for a communication opening of a water treatment sedimentation tank to solve the above problems.

[0009] To achieve the above purpose, the following technical scheme is adopted: a self-adaptive flow regulating device for a communication opening of a water treatment sedimentation tank, comprising a tank body and a partition wall arranged inside the tank body, a communication hole is arranged in the side wall of the partition wall, and further comprising:

[0010] A valve body frame is fixedly arranged inside the communication hole, and an inner portion of the valve body frame is provided with a water body channel;

[0011] A flow adjusting mechanism is arranged inside the water body channel, and the flow adjusting mechanism is used for changing an over-flow area of the water body channel;

[0012] A pressure sensing mechanism is arranged inside the valve body frame, and the pressure sensing mechanism is located at one side of the water body channel, and the pressure sensing mechanism is used for detecting water level pressures at two sides of the partition wall;

[0013] A linkage mechanism is arranged inside the valve body frame, and the linkage mechanism connects the flow adjusting mechanism and the pressure sensing mechanism.

[0014] Preferably, the flow adjusting mechanism comprises a valve plate vertically and slidingly arranged inside the water body channel, a top portion of the valve plate extends to an inner portion of the valve body frame, and the top portion of the valve plate is symmetrically and fixedly provided with two first elastic expansion rods, upper ends of the two first elastic expansion rods are fixedly connected with an inner wall of the top portion of the valve body frame, a rotating shaft is rotatably arranged on the inner side wall of the valve body frame and above the valve plate, one end of the rotating shaft is fixedly provided with a cam, and a protruding portion of the cam is in contact with the top portion of the valve plate.

[0015] Preferably, the pressure sensing mechanism comprises a pressure guide pipe which is detachably arranged inside the valve body frame, two ends of the pressure guide pipe extend to two outer portions of the valve body frame respectively, a pressure sensing diaphragm is fixedly arranged at a middle portion of the pressure guide pipe, and filter screens are fixedly arranged inside the pressure guide pipe and at two sides of the pressure sensing diaphragm.

[0016] Preferably, the pressure guide pipe is insertedly arranged inside the valve body frame, one end of the pressure guide pipe is fixedly provided with a first strong magnetic ring, an outer side wall of the valve body frame is fixedly provided with a second strong magnetic ring, and the first strong magnetic ring and the second strong magnetic ring are magnetically adsorbed.

[0017] Preferably, the pressure guide pipe comprises three short pipes, the pressure sensing diaphragm is fixedly arranged inside the middle short pipe, the two filter screens are fixedly arranged inside the two side short pipes respectively, and a thread ring and an annular thread groove which are matched with each other are arranged between the two adjacent short pipes.

[0018] Preferably, the pressure sensing diaphragm is made of a high polymer material diaphragm.

[0019] Preferably, the linkage mechanism comprises a U-shaped push rod, a vertical part of the U-shaped push rod is located in the interior of the valve body frame, an upper end horizontal part of the U-shaped push rod extends to the interior of the valve body frame, a lower end horizontal part of the U-shaped push rod extends to the interior of the pressure guide pipe, and the lower end of the U-shaped push rod passes through the middle part of one of the filter screens and extends to one side of the pressure sensing diaphragm, the upper end horizontal part of the U-shaped push rod is fixedly provided with a fixed plate, two second elastic expansion rods are symmetrically fixed between the side surface of the fixed plate and the inner side wall of the valve body frame, and the interior of the valve body frame is provided with a transmission mechanism connected with the U-shaped push rod and the rotating shaft.

[0020] Preferably, the transmission mechanism comprises a shaft seat fixedly arranged on the inner side wall of the valve body frame, a transmission shaft is transversely arranged in the interior of the shaft seat, one end of the transmission shaft is fixedly provided with a cylindrical gear, the other end of the transmission shaft is fixedly provided with a first bevel gear, the upper end horizontal part of the U-shaped push rod is fixedly provided with a rack, the rack is arranged in meshing mode with the cylindrical gear, and the shaft wall of the rotating shaft is fixedly provided with a second bevel gear, and the first bevel gear and the second bevel gear are arranged in meshing mode.

[0021] Compared with the prior art, the beneficial effects of the present application are as follows:

[0022] 1. The pressure sensing mechanism, linkage mechanism and flow regulating mechanism can realize self-adaptive adjustment based on the water level difference on both sides of the partition wall, the pressure sensing diaphragm senses the water pressure change, the U-shaped push rod, the transmission mechanism and other linkage components drive the valve plate to act, the flow area of the water body passage is dynamically changed, the passage is automatically opened when the water level difference increases, the water flow transmission is accelerated to balance the water level, the passage is automatically closed when the water level difference decreases, and the water body sedimentation time is guaranteed, the hydraulic change can be responded in real time without external power, and the problem that fixed opening or manual adjustment cannot adapt to flow fluctuation is solved.

[0023] 2. The transmission mechanism adopts gear meshing transmission (the cylindrical gear cooperates with the rack, and the bevel gears change the transmission direction), and the reset action of the elastic expansion rod, so that the whole adjusting process is accurate and responsive, at the same time, the vertical sliding adjusting mode of the valve plate can stably change the flow area, ensure the smooth transition of the water flow, avoid the water level imbalance and water flow disorder caused by adjusting lag or action jam, and significantly improve the sedimentation efficiency of the sedimentation tank and the stability of the outlet water quality.

[0024] 3. The pressure guide pipe is detachable, is connected by three short pipes through a threaded ring and an annular threaded groove, and is fixed by the first strong magnetic ring and the second strong magnetic ring of the valve body frame, so that the pressure guide pipe can be quickly disassembled and split, the internal pressure sensing diaphragm and filter screen can be easily cleaned or replaced, the influence of impurities on the pressure sensing accuracy is effectively avoided, the maintenance difficulty and cost are reduced, and the long-term stable operation of the device is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a first perspective view of a water treatment sedimentation tank communication port self-adaptive flow regulating device provided by the present application;

[0026] Figure 2 is a second perspective view of a water treatment sedimentation tank communication port self-adaptive flow regulating device provided by the present application;

[0027] Figure 3 is a perspective view of a water treatment sedimentation tank communication port self-adaptive flow regulating device communication hole on a partition wall provided by the present application;

[0028] Figure 4 is a perspective view of a water treatment sedimentation tank communication port self-adaptive flow regulating device valve body frame after being cut open provided by the present application;

[0029] Figure 5 is a perspective view of a water treatment sedimentation tank communication port self-adaptive flow regulating device pressure sensing mechanism provided by the present application;

[0030] Figure 6 is a perspective view of a water treatment sedimentation tank communication port self-adaptive flow regulating device pressure guide pipe and valve body frame connection provided by the present application;

[0031] Figure 7 is a perspective view of a water treatment sedimentation tank communication port self-adaptive flow regulating device linkage mechanism and transmission mechanism connection provided by the present application.

[0032] In the figure: 1 tank body, 2 partition wall, 3 communication hole, 4 valve body frame, 5 water body passage, 6 flow regulating mechanism, 61 valve plate, 62 first elastic expansion rod, 63 rotating shaft, 64 cam, 7 pressure sensing mechanism, 71 pressure guide pipe, 711 short pipe, 712 threaded ring, 713 annular threaded groove, 72 pressure sensing diaphragm, 73 filter screen, 74 first strong magnetic ring, 75 second strong magnetic ring, 8 linkage mechanism, 81 U-shaped push rod, 82 fixed plate, 83 second elastic expansion rod, 9 transmission mechanism, 91 shaft seat, 92 transmission shaft, 93 cylindrical gear, 94 first conical gear, 95 rack, 96 second conical gear. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all embodiments.

[0034] As Figures 1-7As shown, a water treatment sedimentation tank communication port adaptive flow regulating device, including pool body 1 and the partition wall 2 set in the pool body 1 inside, the side wall of the partition wall 2 is provided with a communication hole 3, the number of partition wall 2 is two or more, and the side wall of each partition wall 2 is provided with a communication hole 3, further comprising:

[0035] Valve body frame 4, fixedly arranged in the inside of the communication hole 3, the inside of the valve body frame 4 is provided with water body channel 5.

[0036] Flow regulating mechanism 6, arranged in the inside of the water body channel 5, and the flow regulating mechanism 6 is used to change the flow area of the water body channel 5; flow regulating mechanism 6 includes the valve plate 61 vertically slidingly arranged in the inside of the water body channel 5, the top of the valve plate 61 extends to the inside of the valve body frame 4, the valve plate 61 and the water body channel 5 are in sealed sliding contact, and the sewage cannot enter the inside of the valve body frame 4, and the top of the valve plate 61 is symmetrically provided with two first elastic expansion rods 62, the upper end of the two first elastic expansion rods 62 is fixedly connected with the top inner wall of the valve body frame 4, the inside wall of the valve body frame 4 and located above the valve plate 61 is rotatably provided with the rotating shaft 63, one end of the rotating shaft 63 is fixedly provided with the cam 64, and the convex part of the cam 64 is in contact with the top of the valve plate 61, the first elastic expansion rod 62 can exert upward elastic force on the valve plate 61, so that the valve plate 61 automatically moves upward, the valve plate 61 will be hindered by the convex part of the cam 64 when moving upward, so that the valve plate 61 stops moving upward, only when the convex part of the cam 64 rotates upward, the valve plate 61 can move upward.

[0037] The pressure sensing mechanism 7 is arranged in the interior of the valve body frame 4 and is located at one side of the water passage 5, and is used for detecting the water level pressure on both sides of the partition wall 2; the pressure sensing mechanism 7 comprises a pressure guide pipe 71 which is detachably arranged in the interior of the valve body frame 4, and both ends of the pressure guide pipe 71 extend to the outside of the valve body frame 4 on both sides, respectively, and the middle part of the pressure guide pipe 71 is fixedly provided with a pressure sensing diaphragm 72, and the pressure sensing diaphragm 72 is made of a high polymer material diaphragm such as polytetrafluoroethylene, and the polytetrafluoroethylene has good elasticity and deformation characteristics, and can accurately respond to the small water pressure difference on both sides of the partition wall 2, that is, even a slight change in water level can cause corresponding deformation to the low pressure side, so as to ensure the timeliness and accuracy of the pressure signal transmission, and provide reliable initial power for subsequent flow regulation; the interior of the pressure guide pipe 71 and both sides of the pressure sensing diaphragm 72 are fixedly provided with filter screens 73, respectively, and the filter screens 73 can filter impurities in the water body, so as to avoid the pressure sensing diaphragm 72 being blocked or damaged; the pressure guide pipe 71 is plug-in arranged in the interior of the valve body frame 4, one end of the pressure guide pipe 71 is fixedly provided with a first strong magnetic ring 74, the outer side wall of the valve body frame 4 is fixedly provided with a second strong magnetic ring 75, and the first strong magnetic ring 74 and the second strong magnetic ring 75 are magnetically adsorbed, and the magnetic adsorption force of the first strong magnetic ring 74 and the second strong magnetic ring 75 can fixedly connect the pressure guide pipe 71 and the valve body frame 4; the pressure guide pipe 71 comprises three short pipes 711, the pressure sensing diaphragm 72 is fixedly arranged in the interior of the middle short pipe 711, and the two filter screens 73 are fixedly arranged in the interior of the two side short pipes 711, respectively, and the adjacent two short pipes 711 are provided with a threaded ring 712 and an annular threaded groove 713 which cooperate with each other, and the adjacent two short pipes 711 are reversely rotated, so that the threaded ring 712 and the annular threaded groove 713 are threadedly fixed or threadedly separated.

[0038] The linkage mechanism 8 is located inside the valve body frame 4 and connects the flow regulating mechanism 6 and the pressure sensing mechanism 7. The linkage mechanism 8 includes a U-shaped push rod 81. The vertical part of the U-shaped push rod 81 is located inside the valve body frame 4. The upper horizontal part of the U-shaped push rod 81 extends into the interior of the valve body frame 4 (and a sliding sealing assembly is provided at the connection point to prevent sewage from entering the interior of the valve body frame 4). The lower horizontal part of the U-shaped push rod 81 extends into the interior of the pressure guiding pipe 71, and the lower end of the U-shaped push rod 81 passes through the middle of one of the filter screens 73 and extends to one side of the pressure sensing diaphragm 72. The side of the U-shaped push rod 81 that contacts the pressure sensing diaphragm 72 has a rounded end to reduce damage to the pressure sensing diaphragm 72 (since the U-shaped push rod 81 will come into contact with sewage, impurities or corrosive substances may adhere to its surface, therefore, the U-shaped push rod 81 needs to be cleaned manually periodically). A fixing plate 82 is fixedly installed on the upper horizontal part of the U-shaped push rod 81. The side of the fixing plate 82 is flush with the inner wall of the valve body frame 4. Two second elastic telescopic rods 83 are symmetrically fixed, and the second elastic telescopic rods 83 can apply elastic force to the U-shaped push rod 81. When the U-shaped push rod 81 is not subjected to external water pressure, it automatically retracts into the valve body frame 4. The valve body frame 4 is equipped with a transmission mechanism 9 connected to the U-shaped push rod 81 and the rotating shaft 63. The transmission mechanism 9 includes a bearing 91 fixedly mounted on the inner wall of the valve body frame 4. A transmission shaft 92 is laterally rotatable inside the bearing 91. A cylindrical gear 93 is fixedly provided at one end, and a first bevel gear 94 is fixedly provided at the other end of the transmission shaft 92. A rack 95 is fixedly provided at the upper horizontal part of the U-shaped push rod 81. The rack 95 meshes with the cylindrical gear 93. A second bevel gear 96 is fixedly provided on the shaft wall of the rotating shaft 63. The first bevel gear 94 and the second bevel gear 96 mesh with each other. The transmission mechanism 9 can convert the position of the U-shaped push rod 81 into the rotational power of the cam 64, so that the protrusion of the cam 64 drives the valve plate 61 to move.

[0039] The operating principle of this invention is described as follows: Workers introduce wastewater into one side of the interior of tank 1 (to... Figure 1 Based on this, the space on the left side of pool 1 can be considered as the pressure source side. As sewage continues to flow in, the water level in the space of pool 1 on this side rises, forming a water level difference with the water on the other side of partition wall 2 (i.e., the water pressure P1 on the left side is greater than the water pressure P2 on the right side). Since the two ends of the pressure guiding pipe 71 of the pressure sensing mechanism 7 are connected to the water on both sides of partition wall 2 respectively, the pressure sensing diaphragm 72 in the middle of the pressure guiding pipe 71 divides the inside of the pressure guiding pipe 71 into two independent chambers. These two chambers respectively bear the water pressure from the water on both sides of partition wall 2. When there is a difference in water level on both sides, the resulting pressure difference ΔP=P1-P2 will push the pressure sensing diaphragm 72 to deform towards the side with lower water pressure.

[0040] When P1>P2 (i.e. ΔP increases), the pressure-sensitive diaphragm 72 bulges to the right under the action of the left water pressure, and this deformation directly pushes the U-shaped push rod 81 of the linkage mechanism 8, so that the U-shaped push rod 81 overcomes the elastic force of the second elastic expansion rod 83 and moves to the right, while driving the gear rack 95 at the upper end of the horizontal part to move synchronously. The gear rack 95 is in mesh with the cylindrical gear 93 of the transmission mechanism 9, and the gear rack 95 drives the cylindrical gear 93 and the transmission shaft 92 inside it to rotate, converting the horizontal displacement into the rotary motion of the transmission shaft 92. At the same time, the first bevel gear 94 at the other end of the transmission shaft 92 can drive the second bevel gear 96 to rotate, thereby driving the rotating shaft 63 of the flow regulating mechanism 6 to rotate. With the rotation of the rotating shaft 63, the cam 64 at the end thereof also rotates, and the protruding part of the cam 64 gradually rotates upward. At this time, the pressure of the cam 64 on the valve plate 61 gradually decreases, and the valve plate 61 slides upward under the action of the elastic force of the first elastic expansion rod 62, thereby increasing the flow area (i.e. increasing the opening) of the water body passage 5, allowing more water flow to flow smoothly from the high-pressure side of the partition wall 2 to the low-pressure side, reducing the water pressure difference on both sides of the partition wall 2. A balanced water pressure difference helps to keep the water levels on both sides of the partition wall 2 relatively stable, preventing a series of problems caused by excessive water level on one side (such as sewage overflow caused by excessive water level, and dead water area formed by low water level), ensuring smoother operation of the entire sedimentation tank system, reducing the need for manual intervention, and reducing operation and maintenance costs.

[0041] When the water level difference on both sides of the partition wall 2 decreases (ΔP decreases), the pressure-sensitive diaphragm 72 gradually resets, and the U-shaped push rod 81 moves to the left under the action of the elastic force of the second elastic expansion rod 83. Through the reverse rotation of the transmission mechanism 9, the cam 64 is rotated, so that the protruding part of the cam 64 rotates downward and presses the valve plate 61. The valve plate 61 slides downward against the elastic force of the first elastic expansion rod 62, reducing the flow area (i.e. reducing the opening) of the water body passage 5, thereby limiting the water flow rate to ensure that the water body in the tank body 1 can stay long enough for sedimentation;

[0042] When the water level difference on both sides of the partition wall 2 approaches zero, the U-shaped push rod 81, the cam 64 and the valve plate 61 return to the middle position under the joint action of the first elastic expansion rod 62 and the second elastic expansion rod 83, so that the water body passage 5 maintains a pre-set basic opening (minimum opening). This setting avoids the water flow stagnation caused by the complete closure of the water body passage 5, and prevents the excessive opening from affecting the sedimentation efficiency, thereby dynamically balancing the water flow and water level on both sides of the partition wall 2 and ensuring stable sedimentation process;

[0043] If the filter screen 73 on both sides of the pressure guide pipe 71 is seriously blocked, it will cause the water pressure on both sides of the pressure sensing diaphragm 72 to be transmitted not timely and accurately. At this time, the pressure sensing diaphragm 72 cannot make corresponding normal deformation according to the actual water level difference, and may appear deformation lag, insufficient deformation amplitude or even no deformation, thereby affecting the flow regulation accuracy of the whole device, causing water flow regulation to be inaccurate. At this time, the worker pulls the first strong magnetic ring 74 outward, so that the first strong magnetic ring 74 is separated from the second strong magnetic ring 75 on the outer side wall of the valve body frame 4, that is, the pressure guide pipe 71 can be taken out from the inside of the valve body frame 4. Then, the worker reversely rotates the adjacent short pipes 711 by hand, so that the threaded ring 712 between the adjacent short pipes 711 is spirally separated from the annular threaded groove 713, thereby disassembling the pressure guide pipe 71 composed of three short pipes 711, facilitating the thorough cleaning of the internal pressure sensing diaphragm 72 and the filter screen 73. After cleaning, the reverse steps are assembled to reset.

[0044] The above description is only the preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A self-adaptive flow regulating device for the communicating opening of a water treatment sedimentation tank, comprising a tank body (1) and a partition wall (2) arranged inside the tank body (1), a communicating hole (3) being formed in the side wall of the partition wall (2), characterized in that, Also include: Valve body frame (4) is fixedly arranged in the inside of the communication hole (3), the inside of the valve body frame (4) is provided with water passage (5); Flow regulating mechanism (6) is arranged in the inside of the water passage (5), and the flow regulating mechanism (6) is used to change the flow area of the water passage (5); Pressure sensing mechanism (7) is arranged in the inside of the valve body frame (4), and the pressure sensing mechanism (7) is located on one side of the water passage (5), and the pressure sensing mechanism (7) is used to detect the water level pressure on both sides of the partition wall (2); Linkage mechanism (8) is arranged in the inside of the valve body frame (4), and the linkage mechanism (8) is connected with the flow regulating mechanism (6) and the pressure sensing mechanism (7).

2. The self-adapting flow regulating device for the communicating opening of a water treatment sedimentation tank according to claim 1, characterized in that, The flow regulating mechanism (6) includes a valve plate (61) vertically slidingly arranged in the inside of the water passage (5), the top of the valve plate (61) extends to the inside of the valve body frame (4), and the top of the valve plate (61) is symmetrically provided with two first elastic expansion rods (62), the upper ends of the two first elastic expansion rods (62) are fixedly connected with the top inner wall of the valve body frame (4), a rotating shaft (63) is rotatably arranged on the inner side wall of the valve body frame (4) and above the valve plate (61), one end of the rotating shaft (63) is fixedly provided with a cam (64), and the protruding part of the cam (64) is in contact with the top of the valve plate (61).

3. The self-adapting flow regulating device for the communicating opening of a water treatment sedimentation tank according to claim 2, characterized in that, The pressure sensing mechanism (7) includes a pressure guide pipe (71) detachably arranged in the inside of the valve body frame (4), and both ends of the pressure guide pipe (71) extend to the outside of the valve body frame (4) on both sides, a pressure sensing diaphragm (72) is fixedly arranged in the middle of the pressure guide pipe (71), and a filter screen (73) is fixedly arranged in the inside of the pressure guide pipe (71) and on both sides of the pressure sensing diaphragm (72).

4. The self-adapting flow regulating device for the communicating opening of a water treatment sedimentation tank according to claim 3, characterized in that, The pressure guide pipe (71) is insertedly arranged in the inside of the valve body frame (4), one end of the pressure guide pipe (71) is fixedly provided with a first strong magnetic ring (74), the outer side wall of the valve body frame (4) is fixedly provided with a second strong magnetic ring (75), and the first strong magnetic ring (74) and the second strong magnetic ring (75) are magnetically adsorbed.

5. The self-adapting flow regulating device for the communicating opening of a water treatment sedimentation tank according to claim 3, characterized in that, The pressure guide pipe (71) includes three short pipes (711), the pressure sensing diaphragm (72) is fixedly arranged in the inside of the middle short pipe (711), and two filter screens (73) are fixedly arranged in the inside of the two short pipes (711) on both sides, respectively, and adjacent two short pipes (711) are provided with a thread ring (712) and an annular thread groove (713) matched with each other.

6. The self-adapting flow regulating device for the communicating opening of a water treatment sedimentation tank according to claim 3, characterized in that, The pressure sensing diaphragm (72) is made of high molecular material diaphragm.

7. The self-adapting flow regulating device for the communicating opening of a water treatment sedimentation tank according to claim 3, characterized in that, The linkage mechanism (8) comprises a U-shaped push rod (81), the vertical part of the U-shaped push rod (81) is located inside the valve body frame (4), the upper end horizontal part of the U-shaped push rod (81) extends to the inside of the valve body frame (4), the lower end horizontal part of the U-shaped push rod (81) extends to the inside of the pressure guide pipe (71), and the lower end of the U-shaped push rod (81) penetrates the middle part of one of the filter screens (73) and extends to one side of the pressure sensing diaphragm (72), the upper end horizontal part of the U-shaped push rod (81) is fixedly provided with a fixed plate (82), two second elastic expansion rods (83) are symmetrically and fixedly arranged between the side surface of the fixed plate (82) and the inner side wall of the valve body frame (4), and the inside of the valve body frame (4) is provided with a transmission mechanism (9) connected with the U-shaped push rod (81) and the rotating shaft (63).

8. The self-adapting flow regulating device for the communicating opening of a water treatment sedimentation tank according to claim 7, characterized in that, The transmission mechanism (9) comprises an axle seat (91) fixedly arranged on the inner side wall of the valve body frame (4), a transmission shaft (92) is transversely arranged in the inside of the axle seat (91), one end of the transmission shaft (92) is fixedly provided with a cylindrical gear (93), the other end of the transmission shaft (92) is fixedly provided with a first bevel gear (94), the upper end horizontal part of the U-shaped push rod (81) is fixedly provided with a rack (95), the rack (95) is meshingly arranged with the cylindrical gear (93), and the shaft wall of the rotating shaft (63) is fixedly provided with a second bevel gear (96), the first bevel gear (94) and the second bevel gear (96) are meshingly arranged.

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