Floating ball type water pressure balance valve and biochemical precipitation integrated reactor

Abstract

The utility model relates to a floating ball type water pressure balance valve and a biochemical precipitation integrated reactor, the floating ball type water pressure balance valve comprises a floating ball, a pull rope, a communicating pipe and a valve cover, the communicating pipe comprises a horizontal pipe and a vertical pipe, one end of the horizontal pipe is vertically and fixedly connected with one end of the vertical pipe, the other end of the vertical pipe is vertically and upwards arranged, and the valve cover is fixedly connected with the horizontal pipe. The other end of the horizontal pipe is provided with an inclined notch with the notch direction facing downwards, the peripheral edge of the valve deck is hinged to the lower end of the inclined notch through a connecting piece, the valve deck can cover and shield the inclined notch when turned upwards, the position, opposite to the connecting piece, of the peripheral edge of the valve deck is connected with one end of a pull rope, and the other end of the pull rope is connected with a floating ball. According to the utility model, the deformation of the precipitation equipment can be prevented in the water inlet and emptying maintenance process of the precipitation equipment, and the investment cost of the precipitation equipment can be reduced by reducing the wall thickness of the equipment manufacturing material and reducing the internal and external supporting materials on the premise of ensuring the stable water pressure of the precipitation equipment.

Description

Technical Field

[0001] The utility model relates to the technical field related to sewage treatment, and in particular to a float type water pressure balancing valve and a biochemical precipitation integrated reactor. Background Art

[0002] The traditional biochemical section of sewage treatment usually includes a biochemical tank and a sedimentation tank, which require the construction of different treatment units, occupying a large area, and relatively complex operation and management. How to effectively utilize land resources and reduce the area occupied by the sedimentation tank is particularly critical. A common strategy is to integrate the sedimentation tank with the biochemical tank, install sedimentation equipment in the aeration tank, and form an integrated biochemical sedimentation reactor, which can significantly improve space utilization and save land.

[0003] Sedimentation equipment is usually made of thin-walled steel plates, which have limited pressure-bearing strength. When the liquid level difference between the sedimentation tank and the aeration tank is large, it may cause the sedimentation equipment to deform. Especially during the initial water inflow or project drainage maintenance, if the sedimentation tank and the aeration tank cannot achieve synchronous water inflow and outflow, this pressure difference may be more obvious, thereby increasing the risk of equipment deformation. Therefore, when designing and operating such integrated reactors, the liquid level difference between the sedimentation equipment and the aeration tank must be fully considered and controlled to ensure that the two can operate synchronously to avoid potential problems caused by equipment deformation. Utility Model Content

[0004] In order to solve one or more technical problems existing in the prior art, the utility model provides a float type water pressure balance valve and a biochemical precipitation integrated reactor.

[0005] The utility model solves the above-mentioned technical problems with a technical solution as follows: a float type water pressure balancing valve, comprising a float, a pull rope, a connecting pipe and a valve cover, the connecting pipe comprising a horizontal transverse tube and a vertical riser, one end of the horizontal transverse tube is vertically fixedly connected to one end of the vertical riser, the other end of the vertical riser is vertically arranged upward, the other end of the horizontal transverse tube is provided with an oblique cut with the cut direction facing downward, the peripheral edge of the valve cover is hinged to the lower end of the oblique cut through a connecting piece, the valve cover can be flipped upward to cover and shield the oblique cut, the peripheral edge of the valve cover relative to the connecting piece is connected to one end of the pull rope, and the other end of the pull rope is connected to the float.

[0006] The beneficial effects of the utility model are as follows: the float type water pressure balance valve of the utility model is provided with a connecting pipe, which is installed on the sedimentation equipment and forms a communicating vessel, which helps to prevent the sedimentation equipment from deforming during the water inlet and emptying and maintenance process of the sedimentation equipment. Under the premise of ensuring the stability of the water pressure of the sedimentation equipment, the investment cost of the sedimentation equipment can be reduced by reducing the wall thickness of the equipment manufacturing material and reducing the internal and external supporting materials. The float type water pressure balance valve of the utility model has no power components, cleverly utilizes the communicating vessel principle and the buoyancy of the float, does not require an additional power source, has a simple structure, and reduces maintenance requirements.

[0007] On the basis of the above technical solution, the present invention can also be improved as follows.

[0008] Furthermore, the angle between the oblique cut and the horizontal direction is 60°.

[0009] Furthermore, the connecting piece is an L-shaped ear plate, and a hinge plate is provided on the outer side wall of the horizontal cross tube at the lower end of the oblique cut, one end of the L-shaped ear plate is hinged to the hinge plate through a hinge shaft, the outer side wall of the valve cover is welded and fixed to the inner side of the other end of the L-shaped ear plate, and the peripheral edge of the valve cover is arranged close to the corner of the L-shaped ear plate.

[0010] The beneficial effect of adopting the above further solution is that by providing the L-shaped ear plate, it is convenient to be hinged with the hinge plate.

[0011] Furthermore, the inner side wall of the valve cover is provided with a rubber layer.

[0012] The beneficial effect of adopting the above further solution is that the provision of the rubber layer ensures that the valve cover is sealed with the bevel cut when closed, thereby preventing the mud-water mixture in the mud bucket from overflowing from the opening.

[0013] Furthermore, a hanging ear is provided on the outer side wall of the valve cover, and one end of the pull rope is connected to the hanging ear.

[0014] The beneficial effect of adopting the above further solution is that the provision of the hanging ear facilitates connection with the drawstring.

[0015] Furthermore, a 45° cutout is provided at one end of the vertical riser, and a 45° cutout is provided at one end of the horizontal cross tube. The 45° cutout at one end of the horizontal cross tube is adapted to be welded and fixed to the 45° cutout at one end of the vertical riser.

[0016] The beneficial effect of adopting the above further solution is that the vertical risers and horizontal cross pipes are not welded first when they are manufactured in the factory, but are welded during on-site assembly, which is convenient for transportation.

[0017] A biochemical precipitation integrated reactor, comprising the above-mentioned float type water pressure balance valve, and also comprising a reactor body, wherein a partition is provided in the reactor body, and the partition separates the reactor body into an anaerobic tank and an aeration tank which are connected at the bottom, and an aeration mechanism is provided at the bottom of the aeration tank;

[0018] A sedimentation device is provided in the aeration tank. The sedimentation device has a sedimentation chamber with an open upper end. The lower end of the sedimentation chamber is a conical mud hopper. One end of the horizontal cross pipe passes through the side wall of the conical mud hopper. One end of the horizontal cross pipe is located in the conical mud hopper. The vertical riser is located outside the conical mud hopper.

[0019] The beneficial effects of the utility model are as follows: the utility model is a biochemical precipitation integrated reactor, in which the precipitation equipment is built into the aeration tank, which can significantly reduce the floor space of the biochemical section and make the entire treatment system more compact and efficient; the float-type water pressure balancing valve helps to prevent the precipitation equipment from deforming during the water intake and emptying and maintenance of the precipitation equipment, and under the premise of ensuring the stability of the water pressure of the precipitation equipment, the investment cost of the precipitation equipment can be reduced by reducing the wall thickness of the equipment manufacturing material and reducing the internal and external supporting materials.

[0020] Furthermore, a water inlet hole is provided on the side wall of the sedimentation chamber, and a vertically arranged guide plate is also provided in the sedimentation chamber. The guide plate is arranged opposite to the water inlet hole, and the guide plate and the side wall of the sedimentation chamber where the water inlet hole is located form a guide chamber; when the pull rope is in a tensioned state under the buoyancy of the liquid in the sedimentation chamber, the float is located below the water inlet hole, and the height difference between the float and the water inlet hole does not exceed 20 cm.

[0021] Furthermore, a water outlet trough is provided on the inner side of the upper end of the sedimentation equipment, and a water outlet pipe is connected to the bottom of the water outlet trough, and the water outlet pipe passes through the side wall of the sedimentation chamber and leads to the next processing unit; a mud discharge pipe is also provided on the side wall of the conical mud hopper, and the mud discharge pipe passes through the side wall of the conical mud hopper and the side wall of the aeration tank, and the mud discharge pipe is located in the conical mud hopper. One end of the mud discharge pipe is arranged with its opening facing downward.

[0022] Furthermore, a stirrer is provided in the anaerobic tank, and a water inlet pipe communicating with the interior of the anaerobic tank is provided on the side wall of the anaerobic tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of the biochemical precipitation integrated reactor of the utility model;

[0024] Figure 2 This is a schematic diagram of the main structure of the float type water pressure balancing valve of the utility model;

[0025] Figure 3The utility model is a structural schematic diagram of the floating ball type water pressure balance valve installed in a conical mud bucket.

[0026] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0027] 100. Float-type water pressure balancing valve; 1. Float; 2. Pull rope; 3. Valve cover; 4. Horizontal cross pipe; 5. Vertical riser; 6. Oblique cut; 7. L-shaped ear plate; 8. Hinge plate; 9. Hinge shaft; 10. Rubber layer; 11. Hanging ear; 12. Anaerobic tank; 13. Aeration tank; 14. Partition; 15. Aeration plate; 16. Aeration pipe; 17. Sedimentation equipment; 18. Conical mud bucket; 19. Water inlet hole; 20. Guide plate; 21. Water outlet trough; 22. Mud discharge pipe; 23. Agitator; 24. Water inlet pipe; 25. Water passage. DETAILED DESCRIPTION

[0028] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0029] like Figure 2 and Figure 3 As shown, a float type water pressure balance valve 100 of this embodiment includes a float 1, a pull rope 2, a connecting pipe and a valve cover 3, wherein the connecting pipe includes a horizontal transverse pipe 4 and a vertical stand pipe 5, wherein one end of the horizontal transverse pipe 4 is vertically fixedly connected to one end of the vertical stand pipe 5, and the other end of the vertical stand pipe 5 is arranged vertically upward, and the other end of the horizontal transverse pipe 4 is provided with an oblique cut 6 with the cut direction facing downward, and the peripheral edge of the valve cover 3 is hinged to the lower end of the oblique cut 6 through a connecting piece, and the valve cover 3 can be turned up to cover and block the oblique cut 6, and the position of the peripheral edge of the valve cover 3 opposite to the connecting piece is connected to one end of the pull rope 2, and the other end of the pull rope 2 is connected to the float 1. The float type water pressure balance valve has the characteristics of simple structure, convenient operation, automatic opening and closing with liquid level control, and no need for additional power. When the biochemical pool is first filled with water or emptied for maintenance, the balancing valve is automatically controlled to open and close through the linkage of the float and the liquid level, which can effectively balance the water pressure inside and outside the sedimentation equipment 17, thereby preventing the sedimentation equipment 17 from being deformed due to pressure differences and ensuring the stable operation of the sedimentation equipment in the aeration tank. The other end of the vertical riser is arranged vertically upward to prevent the gas-water mixture from entering the sedimentation equipment due to the loose closure of the float-type water pressure balancing valve during normal operation of the aeration tank, ensuring that the sedimentation effect is not affected.

[0030] like Figure 3 As shown, the angle between the oblique cut 6 and the horizontal direction in this embodiment is 60°.

[0031] The float ball 1 of this embodiment is preferably a plastic float ball.

[0032] like Figure 3 As shown, the connecting member of this embodiment is an L-shaped ear plate 7, a hinge plate 8 is provided on the outer side wall of the horizontal transverse tube 4 at the lower end of the oblique cut 6, one end of the L-shaped ear plate 7 is hinged to the hinge plate 8 through a hinge shaft 9, the outer side wall of the valve cover 3 is welded and fixed to the inner side of the other end of the L-shaped ear plate 7, and the peripheral side edge of the valve cover 3 is arranged near the corner of the L-shaped ear plate 7. By providing the L-shaped ear plate, it is convenient to be hinged with the hinge plate.

[0033] like Figure 3 As shown, the inner wall of the valve cover 3 of this embodiment is provided with a rubber layer 10. When the valve cover 3 covers the bevel cut 6, the rubber layer 10 and the end surface of the bevel cut 6 are completely sealed and covered. The provision of the rubber layer ensures that the valve cover is sealed with the bevel cut when closed, preventing the mud-water mixture in the mud bucket from overflowing from the opening.

[0034] like Figure 3 As shown, in this embodiment, a hanging ear 11 is provided on the outer side wall of the valve cover 3, and one end of the pull rope 2 is connected to the hanging ear 11. The arrangement of the hanging ear facilitates connection with the pull rope.

[0035] like Figure 3 As shown, in this embodiment, one end of the vertical riser 5 is provided with a 45° cut, and one end of the horizontal transverse tube 4 is provided with a 45° cut. The 45° cut at one end of the horizontal transverse tube 4 is adapted to be welded and fixed with the 45° cut at one end of the vertical riser 5. The vertical riser and the horizontal transverse tube are not welded when they are manufactured in the factory, but are welded when assembled on site, which is convenient for transportation. Specifically, the other end of the vertical riser 5 is a flared structure.

[0036] The float type water pressure balance valve of this embodiment is provided with a connecting pipe, which is installed on the sedimentation equipment and forms a communicating vessel, which helps to prevent the sedimentation equipment from deformation during water intake and emptying and maintenance. Under the premise of ensuring the stability of the water pressure of the sedimentation equipment, the investment cost of the sedimentation equipment can be reduced by reducing the wall thickness of the equipment manufacturing material and reducing the internal and external supporting materials. The float type water pressure balance valve of the utility model has no power components, cleverly utilizes the communicating vessel principle and the buoyancy of the float, does not require an additional power source, has a simple structure, and reduces maintenance requirements.

[0037] like Figure 1 to Figure 3As shown, a biochemical precipitation integrated reactor of the present embodiment includes the above-mentioned float type water pressure balancing valve 100, and also includes a reactor body, wherein a partition 14 is provided in the reactor body, wherein the partition 14 separates the reactor body into an anaerobic tank 12 and an aeration tank 13 which are connected at the bottom through a water hole 25, wherein an aeration mechanism is provided at the bottom of the aeration tank 13; the aeration mechanism includes an aeration plate 15 and an aeration pipe 16, wherein the aeration plate 15 is located at the bottom of the aeration tank 13, and one end of the aeration pipe 16 is connected to the aeration plate 15, and the other end of the aeration pipe 16 is connected to the blower in the external blower room.

[0038] like Figure 1 As shown, a sedimentation device 17 is provided in the aeration tank of this embodiment. The sedimentation device 17 has a sedimentation chamber with an open upper end. The lower end of the sedimentation chamber is a conical mud hopper 18. One end of the horizontal cross pipe 4 passes through the side wall of the conical mud hopper 18. One end of the horizontal cross pipe 4 is located in the conical mud hopper 18. The vertical riser 5 is located outside the conical mud hopper 18.

[0039] like Figure 1 As shown, a specific scheme of this embodiment is that a water inlet hole 19 is provided on the side wall of the sedimentation chamber, and a vertically arranged guide plate 20 is also provided in the sedimentation chamber, the guide plate 20 is arranged opposite to the water inlet hole 19, and the guide plate 20 and the side wall of the sedimentation chamber where the water inlet hole 19 is located form a guide chamber; when the pull rope 2 is in a tensioned state under the buoyancy of the liquid in the sedimentation chamber, the float 1 is located below the water inlet hole 19, and the height difference between the float 1 and the water inlet hole 19 does not exceed 20 cm.

[0040] Further, such as Figure 1 As shown, a water outlet trough 21 is also provided on the inner side of the upper end of the sedimentation device 17, and a water outlet pipe is connected to the bottom of the water outlet trough 21. The water outlet pipe passes through the side wall of the sedimentation chamber and leads to the next processing unit; a mud discharge pipe 22 is also provided on the side wall of the conical mud hopper 18, and the mud discharge pipe 22 passes through the side wall of the conical mud hopper 18 and the side wall of the aeration tank 13, and the mud discharge pipe 22 is located in the conical mud hopper 18. One end of the mud discharge pipe 22 is arranged with its opening facing downward.

[0041] Specifically, Figure 1 As shown, a stirrer 23 is provided in the anaerobic tank 12 , and a water inlet pipe 24 communicating with the interior of the anaerobic tank 12 is provided on the side wall of the anaerobic tank 12 .

[0042] In this embodiment, the water inlet of the sedimentation equipment comes from the aeration tank and enters through the water inlet hole on the upper part of the side wall of the sedimentation equipment. The mud-water mixture is introduced into the upper part of the conical mud hopper of the sedimentation equipment by using a guide plate, about 0.5m away from the upper edge of the conical mud hopper. In the clarification area, the water flows from bottom to top, the solid particles in the mixed liquid are settled, the mud and water are separated, and the supernatant enters the water outlet trough of the sedimentation equipment. The bottom of the water outlet trough is connected to the water outlet pipe, and the water outlet pipe passes through the side wall of the sedimentation equipment to the next treatment unit; the lower part of the conical mud hopper of the sedimentation equipment is connected to the mud discharge pipe for discharging the residual sludge. One end of the mud discharge pipe is located at the bottom of the conical mud hopper, and the other end passes through the conical mud hopper and is connected to the sludge treatment unit;

[0043] A float-type water pressure balancing valve 100 is installed on the inner side of the lower part of the conical mud hopper. The main function of the float-type water pressure balancing valve 100 is to balance the water pressure inside and outside the sedimentation equipment to prevent deformation or damage to the equipment due to water pressure differences. When the aerobic reactor is initially filled with water or emptied for maintenance, a large liquid level difference may be formed inside and outside the integrated sedimentation equipment, which in turn generates a difference in water pressure inside and outside, which may cause pressure on the structure of the integrated sedimentation equipment, causing deformation or damage to the equipment. By opening the float-type water pressure balancing valve 100, water can be allowed to flow between the aeration tank and the integrated sedimentation equipment, thereby balancing the liquid level and water pressure between the two, and ensuring the normal operation and service life of the equipment. When the water pressure of the integrated sedimentation equipment is guaranteed, the wall thickness of the equipment's manufacturing material can be reduced, and the use of internal and external supporting materials can be reduced. This can not only reduce the investment cost of the sedimentation equipment, but also help improve the operating efficiency and service life of the equipment.

[0044] The working principle of a biochemical precipitation integrated reactor of the present embodiment is that the precipitation equipment is installed in the aeration tank. When water is passed through the aeration tank, the water level of the aeration tank gradually rises. At this time, the inside of the precipitation equipment is in a waterless state, and the plastic float is not subject to buoyancy. Due to its own gravity, the plastic float is at the bottom of the precipitation equipment, and the pull rope has no force. The valve cover is also in an open state due to its own gravity. When the liquid level in the aeration tank rises until it is submerged to the pipe mouth of the bucket outer pipe (i.e., the other end of the vertical riser), in order to balance the pressure inside and outside the equipment, water will flow into the inside of the equipment from the pipe mouth of the bucket outer pipe. At this time, a communicating vessel is formed inside and outside the precipitation equipment. As the liquid level in the aeration tank rises, the liquid level in the precipitation equipment also gradually rises. The plastic float floats on the water surface due to the buoyancy. The gravity of the plastic float is balanced with the buoyancy, and the pull rope is still in a relaxed state. When the liquid level in the sedimentation equipment rises to the state where the pull rope is tensioned, the float is gradually submerged by water. During this process, the buoyancy of the plastic float gradually increases, and the pulling force of the pull rope also becomes greater and greater. When the pulling force reaches a certain limit, it is enough to close the valve cover tightly until the plastic float is completely submerged. The pulling force of the pull rope reaches the maximum, and the three forces of the pulling force of the pull rope, the gravity of the plastic float and the buoyancy of the plastic float by water are balanced. As the water level inside and outside the sedimentation equipment rises to the water inlet of the sedimentation equipment, the water flow in the aeration tank enters the sedimentation equipment from the water inlet of the equipment until the liquid level height for stable operation is reached. When the aeration tank is emptied for maintenance, the liquid level in the aeration tank drops, and a communicating vessel is formed inside and outside the sedimentation equipment at the height of the water inlet hole. The water level in the sedimentation equipment also drops. When the liquid level in the sedimentation equipment drops to the height of the plastic float, the buoyancy of the plastic float gradually decreases, and the tension of the pull rope also gradually decreases. When the tension is not enough to balance the gravity of the valve cover, the valve cover is opened, and a communicating vessel is formed at the bottom of the sedimentation equipment until the buoyancy of the plastic float and the gravity are balanced, the pull rope is in a relaxed state, and the liquid level in the sedimentation equipment gradually drops until it is emptied. The outer pipe of the valve body bucket is installed upward to avoid normal operation of the aeration tank. Even if there is a slight leakage in the float-type water pressure balance valve, due to the design of the riser, the gas-water mixture will not enter the sedimentation equipment and affect the sedimentation effect.

[0045] In the biochemical precipitation integrated reactor of the present embodiment, the precipitation equipment is built into the aeration tank, which can significantly reduce the floor space of the biochemical section and make the entire treatment system more compact and efficient; the float-type water pressure balancing valve helps to prevent the precipitation equipment from deforming during the water intake and emptying and maintenance of the precipitation equipment. Under the premise of ensuring the stability of the water pressure of the precipitation equipment, the investment cost of the precipitation equipment can be reduced by reducing the wall thickness of the equipment manufacturing material and reducing the internal and external supporting materials.

[0046] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0047] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0048] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0050] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0051] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A float type water pressure balancing valve, characterized in that: It includes a float, a pull rope, a connecting pipe and a valve cover, the connecting pipe includes a horizontal cross pipe and a vertical stand pipe, one end of the horizontal cross pipe is vertically fixedly connected to one end of the vertical stand pipe, the other end of the vertical stand pipe is vertically arranged upward, the other end of the horizontal cross pipe is provided with an oblique cut with the cut direction facing downward, the peripheral edge of the valve cover is hinged to the lower end of the oblique cut through a connecting piece, the valve cover can be flipped upward to cover and shield the oblique cut, the peripheral edge of the valve cover relative to the connecting piece is connected to one end of the pull rope, and the other end of the pull rope is connected to the float.

2. A float type water pressure balancing valve according to claim 1, characterized in that: The angle between the oblique cut and the horizontal direction is 60°.

3. A float type water pressure balancing valve according to claim 1, characterized in that: The connecting piece is an L-shaped ear plate, and a hinge plate is provided on the outer side wall of the horizontal cross tube at the lower end of the oblique cut, one end of the L-shaped ear plate is hinged to the hinge plate through a hinge shaft, the outer side wall of the valve cover is welded and fixed to the inner side of the other end of the L-shaped ear plate, and the peripheral edge of the valve cover is arranged close to the corner of the L-shaped ear plate.

4. A float type water pressure balancing valve according to claim 1, characterized in that: The inner side wall of the valve cover is provided with a rubber layer.

5. A float type water pressure balancing valve according to claim 1, characterized in that: A hanging ear is provided on the outer side wall of the valve cover, and one end of the pull rope is connected to the hanging ear.

6. A float type water pressure balancing valve according to claim 1, characterized in that: A 45° cutout is provided at one end of the vertical riser, and a 45° cutout is provided at one end of the horizontal cross tube. The 45° cutout at one end of the horizontal cross tube is adapted to be welded and fixed to the 45° cutout at one end of the vertical riser.

7. A biochemical precipitation integrated reactor, characterized in that: A float type water pressure balancing valve according to any one of claims 1 to 6, further comprising a reactor body, wherein a partition is provided in the reactor body, wherein the partition separates the reactor body into an anaerobic tank and an aeration tank which are connected at the bottom, and an aeration mechanism is provided at the bottom of the aeration tank; A sedimentation device is provided in the aeration tank. The sedimentation device has a sedimentation chamber with an open upper end. The lower end of the sedimentation chamber is a conical mud hopper. One end of the horizontal cross pipe passes through the side wall of the conical mud hopper. One end of the horizontal cross pipe is located in the conical mud hopper. The vertical riser is located outside the conical mud hopper.

8. The biochemical precipitation integrated reactor according to claim 7, characterized in that: A water inlet hole is provided on the side wall of the sedimentation chamber, and a vertically arranged guide plate is also provided in the sedimentation chamber. The guide plate is arranged opposite to the water inlet hole, and the guide plate and the side wall of the sedimentation chamber where the water inlet hole is located form a guide chamber; when the pull rope is in a tensioned state under the buoyancy of the liquid in the sedimentation chamber, the float is located below the water inlet hole, and the height difference between the float and the water inlet hole does not exceed 20 cm.

9. The biochemical precipitation integrated reactor according to claim 7, characterized in that: A water outlet trough is also provided on the inner side of the upper end of the sedimentation equipment, and a water outlet pipe is connected to the bottom of the water outlet trough. The water outlet pipe passes through the side wall of the sedimentation chamber and leads to the next processing unit; a mud discharge pipe is also provided on the side wall of the conical mud hopper, and the mud discharge pipe passes through the side wall of the conical mud hopper and the side wall of the aeration tank, and the mud discharge pipe is located in the conical mud hopper. One end of the mud discharge pipe is arranged with its opening facing downward.

10. The biochemical precipitation integrated reactor according to claim 7, characterized in that: A stirrer is arranged in the anaerobic tank, and a water inlet pipe communicating with the inside of the anaerobic tank is arranged on the side wall of the anaerobic tank.

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