Water pressure balance valve and aeration precipitation integrated biochemical pool

By designing a water pressure balance valve, the internal and external pressure of the sedimentation tank is balanced, and the problem of deformation of the sedimentation equipment due to liquid level difference is solved, equipment investment is reduced, and the effect of no additional power is required during the water treatment process is achieved.

CN222255177UActive Publication Date: 2024-12-27BEIJING HUAYIDE ENVIRONMENTAL TECH CO LTD
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Patent Information

Application Number
CN202420882879.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-26
Publication Date
2024-12-27
Estimated Expiration
2034-04-26

AI Technical Summary

Technical Problem

In existing water treatment equipment, the liquid level difference between the sedimentation tank and the aeration tank causes deformation of the sedimentation equipment, and the wall thickness of the equipment material increases investment, making it difficult to treat water in and out simultaneously.

Method used

A water pressure balance valve is designed to balance the pressure inside and outside the sedimentation tank through the rotation of the valve cover and the pulling rope, prevent equipment from deforming, and reduce the material wall thickness and investment of the sedimentation equipment. The water pressure balance valve includes a valve body, a valve cover and a traction rope, which is sealed by a weight block and rotated to a preset angle on the limiting device to open or close.

Benefits of technology

Effectively prevent the deformation of the precipitation equipment, reduce the investment in precipitation equipment, and does not require additional power. It is simple to operate and simple to structure to ensure the pressure balance of the precipitation equipment during the initial water inlet or venting maintenance.

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Patent Text Reader

Abstract

The utility model relates to the technical field of water treatment, in particular to a water pressure balance valve and an aeration precipitation integrated biochemical pool. The water pressure balance valve comprises a valve body, a valve cover and a traction rope; the valve body comprises a pipe body and a limiting device; the pipe body is provided with a vertically upward valve port, and the limiting device is arranged at the edge of the valve port on the pipe body; the valve cover comprises a cover body and a balancing weight; the cover body is rotatably arranged at the valve port of the pipe body through a first rotating shaft; in the rotating direction of the first rotating shaft, the cover body can rotate to a preset angle from the position where the valve port is closed so as to abut against the limiting device; the balancing weight is arranged on the side, away from the first rotating shaft, of the cover. One end of the traction rope is connected to the cover body close to the balancing weight, and the other end of the traction rope can be used for pulling the cover body to enable the valve cover to be away from the valve port. Therefore, deformation of the sedimentation tank can be effectively prevented, investment of sedimentation equipment is reduced, and the device has the characteristics of simple structure, convenience in operation, no need of extra power and the like.
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Description

Technical Field

[0001] The utility model relates to the technical field of water treatment, in particular to a water pressure balance valve and an aeration and sedimentation integrated biochemical pool. Background Art

[0002] The biochemical pool is the largest treatment unit in a sewage treatment plant. It is particularly important to save land for underground sewage treatment plants and expansion projects with insufficient land.

[0003] In the prior art, the equipment sedimentation tank is often built into the aeration tank to form an integrated reactor to achieve the purpose of saving space. The sedimentation tank is generally made of steel equipment and is prefabricated in the factory and installed on site. It has the characteristics of fast construction speed, low difficulty, and simple maintenance.

[0004] However, in order to save investment, the sedimentation equipment in the prior art is made of thin-walled plates with limited pressure-bearing strength. Once a large liquid level difference is formed between the sedimentation tank and the aeration tank, the sedimentation equipment will be deformed. Especially during the initial water inflow or project drainage and maintenance, the sedimentation equipment is often deformed because the sedimentation tank and the aeration tank cannot be synchronously inflowed and outflowed. Utility Model Content

[0005] The purpose of the utility model includes, for example, providing a water pressure balancing valve and an integrated aeration and sedimentation biochemical pool, which can balance the pressure inside and outside the sedimentation pool, thereby ensuring the sedimentation and effectively preventing the deformation of the sedimentation equipment and reducing the investment in the sedimentation equipment. It has the characteristics of simple structure, easy operation, and no need for additional power.

[0006] The embodiments of the present invention can be implemented as follows:

[0007] In a first aspect, the utility model provides a water pressure balancing valve, comprising:

[0008] Valve body, valve cover and traction rope;

[0009] The valve body comprises a tube body and a limiting device; the tube body has a valve port facing vertically upward, and the limiting device is arranged at the edge of the valve port on the tube body;

[0010] The valve cover comprises a cover body and a counterweight; the cover body is rotatably arranged at the valve port of the tube body through a first rotating shaft; and along the rotation direction of the first rotating shaft, the cover body can be rotated from a position of sealing the valve port to a preset angle to abut against the limit device; the counterweight is arranged on a side of the cover body away from the first rotating shaft;

[0011] One end of the traction rope is connected to a position of the cover body close to the counterweight, and the other end of the traction rope can be used to pull the cover body to move the valve cover away from the valve port;

[0012] The valve cover has a closed state in which the valve cover is covered on the valve opening by the deadweight of the counterweight block to achieve sealing, and an open state in which the valve cover is rotated to a preset angle under the pulling of the traction rope to abut against the limit device.

[0013] In an optional embodiment, the pipe body includes a horizontal pipe and a vertical pipe;

[0014] One end of the horizontal pipe can be connected to the mud bucket of the integrated sedimentation equipment, the other end of the horizontal pipe is connected to the bottom of the vertical pipe, and the cover body is arranged on the top of the vertical pipe.

[0015] In an optional embodiment, the preset rotation angle of the valve cover is 0-60°.

[0016] In an optional embodiment, a sealing gasket is attached to the contact surface between the cover body and the valve port, and the sealing gasket can be used to ensure the sealing performance of the valve cover when it is in a closed state.

[0017] In an optional embodiment, the counterweight block is installed on the lower side of the cover body; the counterweight block can be used to ensure that the valve cover is pressed against the valve opening when it is in a closed state, and the counterweight block can enable the valve cover to automatically close the valve opening after the traction rope is loosened.

[0018] In a second aspect, the utility model provides an aeration-sedimentation integrated biochemical pool, comprising an aerobic reactor, an integrated sedimentation device, and a water pressure balancing valve as described in any one of the aforementioned embodiments;

[0019] The aerobic reactor comprises a biochemical pool body, a water inlet pipe, and an aeration device; the water inlet pipe is arranged on the side wall of the biochemical pool body near the pool opening, and the water inlet pipe is used to introduce the water to be treated into the biochemical pool body; the aeration device extends from the pool opening of the biochemical pool body to the bottom of the biochemical pool body, so as to realize at least aeration operation of the water in the biochemical pool body;

[0020] The integrated sedimentation equipment comprises a sedimentation tank body, a water outlet pipe and a mud discharge pipe; the sedimentation tank body comprises a box tube and a mud bucket, the top of the mud bucket is connected to the bottom of the sedimentation tank body to form a barrel-shaped structure with an open top and a sealed bottom;

[0021] The sedimentation tank box is arranged in the biochemical tank box, and the opening of the sedimentation tank box is located above the liquid surface of the water in the biochemical tank box; a guide plate is arranged in the box barrel, and the guide plate and the side wall of the box barrel are enclosed to form a closed guide channel, and a water inlet hole penetrating the guide channel and the biochemical tank box is opened on the box barrel; the top of the guide plate is flush with the opening, and the bottom of the guide plate is at a preset distance from the top of the mud bucket to form a water flow route from the water inlet through the guide channel to the box barrel;

[0022] One end of the water outlet pipe is arranged in the box barrel near the open position through the water outlet groove, and the other end of the water outlet pipe extends to the outside of the biochemical pool box body;

[0023] One end of the mud discharge pipe is arranged at the bottom of the mud bucket, and the other end extends to the outside of the biochemical pool box; the valve body of the water pressure balance valve is connected to the bottom of the mud bucket, and the valve cover of the water pressure balance valve is located in the biochemical pool box.

[0024] In an optional embodiment, the distance between the bottom of the guide plate and the upper edge of the mud bucket is 0.4-0.6 meters.

[0025] In an optional embodiment, the interval between the bottom of the guide plate and the upper edge of the mud bucket is 0.5 meters.

[0026] In an optional embodiment, the aeration device includes a blower, an aeration pipe and an aeration disk;

[0027] The aeration pipe extends from the pool opening of the biochemical pool body to the bottom of the biochemical pool body, the aeration plate is arranged at a position of the aeration pipe close to the bottom of the biochemical pool body, and the other end of the aeration pipe is connected to a blower.

[0028] In an optional embodiment, a first hanging ear is provided on the valve cover, a second hanging ear is provided on the top of the biochemical pool box, and two ends of the traction rope are respectively connected to the first hanging ear and the second hanging ear.

[0029] The beneficial effects of the embodiments of the present utility model include, for example:

[0030] The function of the water pressure balancing valve is to balance the water pressure inside and outside the integrated sedimentation equipment. When the aerobic reactor is initially filled with water or emptied for maintenance, the valve can be opened to prevent the aerobic reactor and the integrated sedimentation equipment from forming a large liquid level difference, forming an internal and external pressure difference, and preventing the integrated sedimentation equipment from deforming. After the water pressure of the integrated sedimentation equipment is guaranteed, the wall thickness of the material used to make the integrated sedimentation equipment can be reduced, and the internal and external supporting materials can be reduced, thereby reducing the investment in the integrated sedimentation equipment. Specifically, when the water pressure balancing valve needs to be opened, tighten the traction rope and pull up the valve cover, so that the aerobic reactor and the integrated sedimentation equipment are in a connected state, and water can enter and exit the integrated sedimentation equipment through the water pressure balancing valve according to the liquid level difference inside and outside the integrated sedimentation equipment. When the water pressure balancing valve needs to be closed, loosen the traction rope, and the valve cover falls back onto the riser by its own weight, so that the water pressure balancing valve is in a sealed state. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 This is a schematic structural diagram of a water pressure balancing valve according to an embodiment of the utility model;

[0033] Figure 2 A schematic structural diagram of the water pressure balancing valve according to another embodiment of the utility model;

[0034] Figure 3 It is a structural schematic diagram of an aeration and sedimentation integrated biochemical pool according to an embodiment of the utility model.

[0035] Icons: 100-valve body; 110-tube body; 111-horizontal pipe; 112-vertical pipe; 120-limiting device; 200-valve cover; 210-cover body; 211-first hanging ear; 220-counterweight block; 230-first rotating shaft; 240-sealing pad; 300-traction rope; -aeration and sedimentation integrated biochemical pool; 400-aerobic reactor; 410-biochemical pool box; 420-water inlet pipe; 430-aeration device; 431-aeration pipe; 432-aeration plate; 500-integrated sedimentation equipment; 510-sedimentation tank box; 511-box barrel; 512-mud bucket; 520-water outlet pipe; 530-mud discharge pipe; 540-guide plate; 541-diversion channel; 542-water inlet hole; 550-second hanging ear. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0039] In the description of the present utility model, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the utility model product is usually placed when used. It is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present utility model.

[0040] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0041] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0042] Please refer to Figure 1 and Figure 2 This embodiment provides a water pressure balancing valve, including a valve body 100, a valve cover 200 and a traction rope 300.

[0043] The valve body 100 includes a tube body 110 and a stopper 120; the tube body 110 has a valve port vertically upward, and the stopper 120 is arranged at the edge of the valve port on the tube body 110;

[0044] The valve cover 200 includes a cover body 210 and a counterweight 220; the cover body 210 is rotatably disposed at the valve port of the tube body 110 via a first rotating shaft 230; and along the rotation direction of the first rotating shaft 230, the cover body 210 can be rotated from the position of the closed valve port to a preset angle to abut against the stopper 120; the counterweight 220 is disposed on a side of the cover body 210 away from the first rotating shaft 230;

[0045] One end of the traction rope 300 is connected to the cover body 210 near the counterweight 220, and the other end of the traction rope 300 can be used to pull the cover body 210 to keep the valve cover 200 away from the valve port;

[0046] The valve cover 200 has a closed state in which it covers the valve opening by the weight of the counterweight block 220 to achieve sealing, and an open state in which it is rotated to a preset angle under the pulling of the traction rope 300 to abut against the limit device 120.

[0047] When in use, when the water pressure balance valve needs to be opened, the traction rope 300 is tightened, and the valve cover 200 is pulled up, so that the aerobic reactor 400 and the integrated sedimentation device 500 are in a connected state, and water can enter and exit the integrated sedimentation device 500 through the water pressure balance valve according to the liquid level difference inside and outside the integrated sedimentation device 500. When the water pressure balance valve needs to be closed, the traction rope 300 is loosened, and the valve cover 200 falls back to the riser 112 by its own weight, so that the water pressure balance valve is in a sealed state. In this way, the water pressure balance valve balances the internal and external water pressures of the integrated sedimentation device 500. When the aerobic reactor 400 is first filled with water or emptied for maintenance, by opening the valve, the aerobic reactor 400 and the integrated sedimentation device 500 are prevented from forming a large liquid level difference, forming internal and external water pressure, and preventing the integrated sedimentation device 500 from deforming. After the water pressure of the integrated sedimentation device 500 is guaranteed, the wall thickness of the material for making the integrated sedimentation device 500 can be reduced, and the internal and external supporting materials can be reduced, thereby reducing the investment in the integrated sedimentation device 500.

[0048] It can also be seen from the figure that in this embodiment, the pipe body 110 includes a horizontal pipe 111 and a vertical pipe 112; one end of the horizontal pipe 111 can be connected to the mud bucket 512 of the integrated sedimentation device 500, and the other end of the horizontal pipe 111 is connected to the bottom of the vertical pipe 112, and the cover body 210 is arranged on the top of the vertical pipe 112. Optionally, the angle value of the preset rotation angle of the valve cover 200 is 0-60°.

[0049] Furthermore, one end of the horizontal pipe 111 is connected to the mud bucket 512 of the integrated sedimentation equipment 500, one end is connected to the vertical pipe 112, the vertical pipe 112 is installed upward, and the other end is connected to the valve cover 200 through the first rotating shaft 230 (a latch in this embodiment). The limit device 120 is installed on the vertical pipe 112 to limit the maximum opening degree of the valve cover 200 to 60°.

[0050] The valve cover 200 is installed on the standpipe 112 and connected to the standpipe 112 via a latch. The valve cover 200 rotates within a range of 0-60° relative to the standpipe 112 , and the maximum opening degree is controlled to be 60° via the limit device 120 .

[0051] In this embodiment, a sealing gasket 240 is attached to the contact surface between the cover body 210 and the valve port, and the sealing gasket 240 can be used to ensure the sealing of the valve cover 200 when it is in a closed state. Optionally, the sealing gasket 240 is a rubber gasket attached to the contact surface between the cover body 210 and the riser 112 to ensure the sealing of the water pressure balance valve when it is in a closed state.

[0052] The counterweight 220 is installed on the lower side of the cover 210 to ensure that the water pressure balance valve is in a compressed state when closed, and to ensure that the valve can be automatically closed after the traction rope 300 is loosened.

[0053] The first hanging ear 211 installed on the upper part of the cover 210 is used to connect the traction rope 300; the other end of the traction rope 300 is connected to the second hanging ear 550 on the upper part of the aerobic reactor 400 to facilitate manual operation. Optionally, the traction rope 300 is generally a steel wire rope or a stainless steel chain.

[0054] In a second aspect, the utility model provides an aeration-sedimentation integrated biochemical pond, comprising an aerobic reactor 400, an integrated sedimentation device 500, and a water pressure balancing valve according to any one of the aforementioned embodiments;

[0055] The aerobic reactor 400 includes a biochemical tank body 410, a water inlet pipe 420, and an aeration device 430; the water inlet pipe 420 is arranged on the side wall of the biochemical tank body 410 near the tank opening, and the water inlet pipe 420 is used to introduce the water to be treated into the biochemical tank body 410; the aeration device 430 extends from the tank opening of the biochemical tank body 410 to the bottom of the biochemical tank body 410, so as to realize at least aeration operation of the water in the biochemical tank body 410;

[0056] The integrated sedimentation equipment 500 includes a sedimentation tank box 510, a water outlet pipe 520 and a mud discharge pipe 530; the sedimentation tank box 510 includes a box tube 511 and a mud bucket 512, and the top of the mud bucket 512 is connected to the bottom of the sedimentation tank box 510 to form a barrel-shaped structure with an open top and a sealed bottom.

[0057] The sedimentation tank box 510 is arranged in the biochemical tank box 410, and the opening of the sedimentation tank box 510 is located above the liquid surface of the water in the biochemical tank box 410; a guide plate 540 is arranged in the box barrel 511, and the guide plate 540 and the side wall of the box barrel 511 enclose a closed guide channel 541, and a water inlet hole 542 penetrating the guide channel 541 and the biochemical tank box 410 is opened on the box barrel 511; the top of the guide plate 540 is flush with the opening, and the bottom of the guide plate 540 has a preset distance from the top of the mud bucket 512 to form a water flow route from the water inlet hole 542 through the guide channel 541 to the box barrel 511;

[0058] One end of the water outlet pipe 520 is disposed in the box tube 511 near the open position through the water outlet groove, and the other end of the water outlet pipe 520 extends to the outside of the biochemical pool box 410;

[0059] One end of the mud discharge pipe 530 is arranged at the bottom of the mud bucket 512, and the other end extends to the outside of the biochemical pool box 410; the valve body 100 of the water pressure balance valve is connected to the bottom of the mud bucket 512, and the valve cover 200 of the water pressure balance valve is located in the biochemical pool box 410.

[0060] Optionally, the biochemical tank body 410 of the aerobic reactor 400 is a rectangular tank body. Tanks of other shapes may also be used depending on different application conditions.

[0061] The water inlet pipe 420 is connected from one side wall. Optionally, the water inlet pipe 420 is connected from the upper part of the side wall of the aerobic reactor 400. In actual application, the height of the water inlet pipe 420 can be determined according to actual hydraulic conditions.

[0062] In this embodiment, the aeration device 430 includes a blower, an aeration pipe 431 and an aeration plate 432; the aeration pipe 431 extends from the pool mouth of the biochemical pool body 410 to the bottom of the biochemical pool body 410, and the aeration plate 432 is arranged at a position of the aeration pipe 431 close to the bottom of the biochemical pool body 410, and the other end of the aeration pipe 431 is connected to the blower.

[0063] Specifically, the bottom of the biochemical pool box 410 is covered with aeration plates 432 , which are installed on an aeration pipe 431 , and the other end of the aeration pipe 431 is connected to the aerobic reactor 400 and is in communication with a blower.

[0064] The integrated precipitation device 500 is built into the aerobic reactor 400 .

[0065] The sedimentation tank box 510 is a rectangular parallelepiped, and has a clarification area and a sedimentation area arranged in sequence along the vertical direction. The lower part of the sedimentation tank box 510 is a prism-shaped mud bucket 512. The bottom cross-sectional area of ​​the mud bucket 512 is smaller than the top cross-sectional area of ​​the mud bucket 512.

[0066] The sedimentation tank body 510 includes a water outlet trough, a water outlet pipe 520 and a mud discharge pipe 530 .

[0067] The influent comes from the aerobic reactor 400 and enters through the water inlet hole 542 on the upper side wall of the sedimentation tank box 510. The influent is guided to the upper part of the mud hopper 512 of the integrated sedimentation equipment 500 through the guide plate 540. The distance from the upper edge of the mud hopper 512 is generally about 0.4-0.6m, preferably 0.5m.

[0068] The influent is a mixture of mud and water, and mud and water are separated in the integrated sedimentation equipment 500. The supernatant is connected to the integrated sedimentation equipment 500 through a water outlet trough installed on the upper part of the integrated sedimentation equipment 500 and a water outlet pipe 520 connected to the water outlet trough; one end of the water outlet pipe 520 is connected to the water outlet trough, and the other end is connected to the integrated sedimentation equipment 500 and then passes through the aerobic reactor 400 to be connected to the next treatment unit as effluent.

[0069] The mud discharge pipe 530 is installed at the lower part of the prism-shaped mud bucket 512 to discharge the remaining sludge. One end of the mud discharge pipe 530 is connected to the middle of the mud bucket 512 through a downward elbow, and the other end is connected to the integrated sedimentation device 500 and then passes through the aerobic reactor 400 to the sludge treatment unit. A water pressure balance valve is installed outside the mud bucket 512, and the water pressure balance valve is located in the water body of the biochemical tank box 410.

[0070] In summary, the embodiment of the utility model provides a water pressure balance valve and an aeration sedimentation integrated biochemical pool, which has at least the following advantages:

[0071] 1. The water pressure balance valve has no power components, simple structure and simple operation, which avoids the need to use a water pump to fill or drain water when the aerobic reactor 400 is filled with water for the first time or emptied for maintenance; the water pressure balance valve is installed at the bottom of the mud bucket 512 of the integrated sedimentation equipment to balance the internal and external water pressures.

[0072] 2. The integrated precipitation device 500 is built into the aerobic reactor 400 to form a combined biochemical pool, saving space.

[0073] 3. The vertical pipe 112 of the valve body 100 is installed upward to prevent the air-water mixture from entering when the water pressure balance valve is not closed tightly during the normal operation of the aerobic reactor 400 and affecting the precipitation effect;

[0074] 4. A rubber pad is attached to the lower part of the valve cover 200 to improve the sealing performance;

[0075] 5. The lower part of the valve cover 200 is installed on the counterweight block 220 to increase the deadweight of the valve cover 200 so that the water pressure balance valve is in a compressed state when closed;

[0076] 6. A limit device 120 is provided to limit the maximum opening degree of the valve cover 200 to 60°, so that the water pressure balance valve can be automatically closed when it is closed.

[0077] 7. To prevent the integrated sedimentation equipment 500 from being deformed, after the water pressure of the integrated sedimentation equipment 500 is guaranteed, the wall thickness of the material used to make the integrated sedimentation equipment 500 can be reduced, as well as the internal and external supporting materials, thereby reducing the investment in the integrated sedimentation equipment 500.

[0078] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A water pressure balancing valve, characterized in that: include: Valve body, valve cover and traction rope; The valve body comprises a tube body and a limiting device; the tube body has a valve port facing vertically upward, and the limiting device is arranged at the edge of the valve port on the tube body; The valve cover comprises a cover body and a counterweight; the cover body is rotatably arranged at the valve port of the tube body through a first rotating shaft; and along the rotation direction of the first rotating shaft, the cover body can be rotated from a position of sealing the valve port to a preset angle to abut against the limit device; the counterweight is arranged on a side of the cover body away from the first rotating shaft; One end of the traction rope is connected to a position of the cover body close to the counterweight, and the other end of the traction rope can be used to pull the cover body to keep the valve cover away from the valve port; The valve cover has a closed state in which the valve cover is covered on the valve opening by the deadweight of the counterweight block to achieve sealing, and an open state in which the valve cover is rotated to a preset angle under the pulling of the traction rope to abut against the limit device.

2. The water pressure balancing valve according to claim 1, characterized in that: The pipe body includes a horizontal pipe and a vertical pipe; One end of the horizontal pipe can be connected to the mud bucket of the integrated sedimentation equipment, the other end of the horizontal pipe is connected to the bottom of the vertical pipe, and the cover body is arranged on the top of the vertical pipe.

3. The water pressure balancing valve according to claim 1, characterized in that: The preset rotation angle of the valve cover is 0-60°.

4. The water pressure balancing valve according to claim 1, characterized in that: A sealing gasket is attached to the contact surface between the cover body and the valve port, and the sealing gasket can be used to ensure the sealing performance of the valve cover when it is in a closed state.

5. The water pressure balancing valve according to claim 1, characterized in that: The counterweight block is installed on the lower side of the cover body; the counterweight block can be used to ensure that the valve cover is pressed against the valve opening when it is in a closed state, and the counterweight block can enable the valve cover to automatically close the valve opening after the traction rope is loosened.

6. An aeration and sedimentation integrated biochemical pond, characterized in that: It comprises an aerobic reactor, an integrated precipitation device and a water pressure balancing valve as described in any one of claims 1 to 5; The aerobic reactor comprises a biochemical pool body, a water inlet pipe, and an aeration device; the water inlet pipe is arranged on the side wall of the biochemical pool body near the pool opening, and the water inlet pipe is used to introduce the water to be treated into the biochemical pool body; the aeration device extends from the pool opening of the biochemical pool body to the bottom of the biochemical pool body, so as to realize at least aeration of the water in the biochemical pool body; The integrated sedimentation equipment comprises a sedimentation tank body, a water outlet pipe and a mud discharge pipe; the sedimentation tank body comprises a box tube and a mud bucket, the top of the mud bucket is connected to the bottom of the sedimentation tank body to form a barrel-shaped structure with an open top and a sealed bottom; The sedimentation tank box is arranged in the biochemical tank box, and the opening of the sedimentation tank box is located above the liquid surface of the water in the biochemical tank box; a guide plate is arranged in the box barrel, and the guide plate and the side wall of the box barrel are enclosed to form a closed guide channel, and a water inlet hole penetrating the guide channel and the biochemical tank box is opened on the box barrel; the top of the guide plate is flush with the opening, and the bottom of the guide plate is at a preset distance from the top of the mud bucket to form a water flow route from the water inlet through the guide channel to the box barrel; One end of the water outlet pipe is arranged in the box barrel near the open position through the water outlet groove, and the other end of the water outlet pipe extends to the outside of the biochemical pool box body; One end of the mud discharge pipe is arranged at the bottom of the mud bucket, and the other end extends to the outside of the biochemical pool box; the valve body of the water pressure balance valve is connected to the bottom of the mud bucket, and the valve cover of the water pressure balance valve is located in the biochemical pool box.

7. The aeration-sedimentation integrated biochemical pond according to claim 6, characterized in that: The distance between the bottom of the guide plate and the upper edge of the mud bucket is 0.4-0.6 meters.

8. The aeration-sedimentation integrated biochemical pond according to claim 7, characterized in that: The interval between the bottom of the guide plate and the upper edge of the mud bucket is 0.5 meters.

9. The aeration-sedimentation integrated biochemical pond according to claim 6, characterized in that: The aeration device comprises a blower, an aeration pipe and an aeration plate; The aeration pipe extends from the pool opening of the biochemical pool body to the bottom of the biochemical pool body, the aeration plate is arranged at a position of the aeration pipe close to the bottom of the biochemical pool body, and the other end of the aeration pipe is connected to a blower.

10. The aeration-sedimentation integrated biochemical pond according to claim 6, characterized in that: The valve cover is provided with a first hanging ear, the top of the biochemical pool box is provided with a second hanging ear, and the two ends of the traction rope are respectively connected to the first hanging ear and the second hanging ear.