Independent branch pipe aeration system, aerobic tank and sewage multi-stage contact oxidation treatment equipment

Abstract

The utility model relates to an independent branch pipe aeration system, an aerobic tank and sewage multi-stage contact oxidation treatment equipment, the independent branch pipe aeration system comprises an aeration main pipe, an aeration distribution pipe connected with the aeration main pipe and independent branch pipes arranged at the lower end of the aeration distribution pipe, and the lower end of each independent branch pipe is respectively provided with an aerator; the aeration distribution pipe is a distribution pipe network formed by transverse pipes and vertical pipes through pipeline connecting pieces; and a vertical pipe section is arranged at the lower end of the transverse pipe of the distribution pipe network and is detachably connected with each independent branch pipe through a regulating valve and a flange. The pipeline and the aerator are easy to repair and convenient to maintain, and the problem of non-uniform aeration is solved.

Description

Technical Field

[0001] The utility model belongs to the field of sewage treatment, and particularly relates to an aeration system, an aerobic tank and a multi-stage contact oxidation sewage treatment device. Background Art

[0002] At present, the aeration structure of the multi-stage contact oxidation treatment device is the perforated aeration in the bottom fixed mode. For example, a sewage treatment modular combined packing device disclosed in a Chinese patent (publication number CN207645886U, publication date July 24, 2018) installs the main aeration pipe and the perforated aeration pipes at the bottom of the biochemical tank. Since the biological packing is installed inside, the structure of the aerobic tank is relatively complex, which brings certain inconvenience to the installation and maintenance of the aeration equipment. 1. After the perforation of the perforated aeration pipe is blocked by sundries, the air pressure in the pipe is too high, causing the pipeline to fall off. Since the pipeline is at the bottom of the tank body, it is not easy to find and cannot be repaired in time, and at the same time, it will increase the difficulty and cost of installation and maintenance. 2. There may be uneven aeration: if the layout of the aeration pipes is unreasonable, it may lead to uneven aeration, thus affecting the full contact between the sewage and the packing and reducing the treatment effect. In actual operation, attention needs to be paid to the layout of the aeration pipes and the adjustment of the aeration intensity to ensure uniform aeration. 3. There is a risk of blockage: although aeration has a stirring effect, in some cases, there may still be a problem of packing blockage, especially when the amount of biological film is too much or the sewage contains more impurities. This requires regular inspection and maintenance to prevent blockage from affecting aeration and treatment effect. Summary of the Invention

[0003] The purpose of the utility model is to overcome the above-mentioned deficiencies of the prior art, and provide an independent branch pipe aeration system with easy maintenance of the pipeline and aerator, convenient maintenance, and solve the problem of uneven aeration.

[0004] The utility model also provides an aerobic tank and a multi-stage contact oxidation sewage treatment device.

[0005] The technical solution of the utility model is: an independent branch pipe aeration system, including a main aeration pipe, an aeration distribution pipe connected to the main aeration pipe, and independent branch pipes installed at the lower end of the aeration distribution pipe. An aerator is installed at the lower end of each independent branch pipe; the aeration distribution pipe is a distribution pipe network composed of a horizontal pipe and a vertical pipe through a pipe connector; a vertical pipe section is provided at the lower end of the horizontal pipe of the distribution pipe network, and the vertical pipe section is detachably connected to each independent branch pipe through a regulating valve and a flange.

[0006] The main aeration pipe and the aeration distribution pipe have a thick diameter, and the independent branch pipes have a thin diameter. By setting the layout of the thicker pipes to form a uniform arrangement, pipeline pressure storage and pressure maintenance, the independent branch pipes transmit gas to the aerator to achieve a better aeration effect.

[0007] The pipe connector includes a three-way pipe fitting and a four-way pipe fitting; the end of the horizontal pipe is blocked by a pipe cap.

[0008] Horizontal supports are installed on both sides of the distribution pipe network. The independent branch pipe aeration system is installed on the lining plate of the inner wall of the aerobic tank mouth through the horizontal supports and bolts.

[0009] The distribution pipe network is fixed to the horizontal support through pipe clamps.

[0010] The main aeration pipe, distribution pipe network, and independent branch pipes are all made of stainless steel.

[0011] The main aeration pipe is connected to the distribution pipe network through a connecting pipe, and a main pipe valve is installed on the connecting pipe.

[0012] The distribution pipe network includes a vertical pipe and three horizontal pipes. The three horizontal pipes include a long horizontal pipe and two short horizontal pipes. The long horizontal pipe is connected to the middle of the vertical pipe, and the short horizontal pipes are connected to both ends of the vertical pipe. The connecting pipe is connected to the vertical pipe near the middle of the long horizontal pipe.

[0013] An aerobic tank includes an aerobic tank body, and the independent branch pipe aeration system as described above is detachably installed in the aerobic tank body.

[0014] A multi-stage contact oxidation sewage treatment device includes an anoxic tank, an aerobic tank, an anoxic tank 1, an aerobic tank 1, a sedimentation tank, and a middle water tank that are connected in sequence. An aeration fan is connected to the aerobic tank and the aerobic tank 1 through the main aeration pipe, and the independent branch pipe aeration system as described above is detachably installed in the aerobic tank and the aerobic tank 1.

[0015] Through reasonable design, selection of appropriate aeration equipment, optimization of the aeration pipe layout, and strengthening of operation management and maintenance, the present utility model can overcome the influence brought by the above-mentioned disadvantages of the prior art to the greatest extent and give full play to the advantages of the multi-stage contact oxidation method.

[0016] The aeration system (independent branch pipe aeration system) of the present utility model solves the adaptability of mutual replacement of each module fitting of the aeration system. The independent branch pipe aeration system has the following advantages:

[0017] 1. Good aeration uniformity: Since each branch pipe independently controls and distributes gas, air can be more accurately and evenly delivered to the aeration area, making the dissolved oxygen distribution in the sewage more uniform and improving the treatment effect and efficiency.

[0018] 2. High flexibility: The independent branch pipes can be adjusted separately according to actual needs for gas volume and pressure to adapt to the oxygen demand changes in different regions and different periods, facilitating flexible control of the treatment process.

[0019] 3. Convenient maintenance and repair: When a certain branch pipe fails or is damaged, it can be repaired or replaced separately without affecting the normal operation of other parts of the entire aeration system, reducing the maintenance cost and downtime.

[0020] 4. Easy to optimize and expand: During the system design and operation process, according to the actual treatment effect and requirements, the independent branch pipes can be conveniently optimized in layout or the number of branch pipes can be increased to achieve the expansion and upgrade of the system.

[0021] 5. Precise energy consumption control: By independently adjusting the aeration parameters of the branch pipes, the aeration energy consumption can be more precisely controlled, avoiding energy waste caused by excessive aeration and achieving energy-saving operation.

[0022] 6. Good operation stability: Each branch pipe operates relatively independently with less interference between them, making the system operation more stable and reliable and reducing the fluctuation of treatment effect caused by faults. Description of the Drawings

[0023] Figure 1 is the structural schematic diagram of the present utility model;

[0024] Figure 2 is one of the usage state diagrams of the present utility model;

[0025] Figure 3 is the second usage state diagram of the present utility model. Detailed Implementation Manner

[0026] Figure 1 In this, the present utility model includes an aeration main pipe 1. The aeration main pipe 1 is connected to the distribution pipe network through a connecting pipe. A main pipe valve 2 is installed on the connecting pipe. An independent branch pipe 6 is installed at the lower end of the aeration distribution pipe 3. An aerator 7 is respectively installed at the lower end of each independent branch pipe 6. The aeration distribution pipe 3 is a distribution pipe network composed of a horizontal pipe and a vertical pipe through pipe connectors. The pipe connectors include three-way pipe fittings and four-way pipe fittings. The end of the horizontal pipe is blocked by a pipe cap. The aeration main pipe 1, the distribution pipe network, and the independent branch pipe 6 are all made of stainless steel. Horizontal supports are installed on both sides of the distribution pipe network. The distribution pipe network is fixed to the horizontal support through pipe clamps. There is a vertical pipe section at the lower end of the horizontal pipe of the distribution pipe network. The vertical pipe section is detachably connected to each independent branch pipe through a regulating valve 4 and a flange 5. To ensure gas pressure, the diameters of the aeration main pipe 1 and the aeration distribution pipe 3 are thick, and the diameter of the independent branch pipe 6 is thin. By setting the layout of the thicker pipes, uniform arrangement, pipeline pressure storage, and pressure maintenance are formed. The independent branch pipes transmit gas to the aerators to achieve a better aeration effect. The aeration main pipe 1, the distribution pipe network, and the independent branch pipe 6 are all made of stainless steel, making the independent branch pipes perpendicular to the water body in the aerobic tank, facilitating the lifting and maintenance of the aerators. The flange connection bolts are tightened to avoid shaking and affecting the aeration effect.

[0027] Figure 2 In this, the independent branch pipe 6 of the present utility model is inserted into the aerobic tank 9. The independent branch pipe aeration system is installed on the lining plate on the inner wall of the aerobic tank mouth through horizontal supports and bolts.

[0028] Figure 3Among them, a municipal sewage multi-stage contact oxidation treatment device includes an anoxic tank 10, an aerobic tank 9, a first anoxic tank 101, a first aerobic tank 91, a sedimentation tank, and a middle water tank that are connected in sequence. An aeration blower 8 is connected to the aerobic tank 9 and the first aerobic tank 91 through an aeration main pipe 1. Detachable independent branch pipe aeration systems are installed in the aerobic tank 9 and the first aerobic tank 91.

Claims

1. An independent branch pipe aeration system, characterized in that: It includes an aeration main pipe (1), an aeration distribution pipe (3) connected to the aeration main pipe (1), and independent branch pipes (6) installed at the lower end of the aeration distribution pipe (3). An aerator (7) is installed at the lower end of each independent branch pipe (6); the aeration distribution pipe (3) is a distribution pipe network composed of a horizontal pipe and a vertical pipe through pipe connectors; a vertical pipe section is provided at the lower end of the horizontal pipe of the distribution pipe network, and the vertical pipe section is detachably connected to each independent branch pipe through a regulating valve (4) and a flange (5).

2. The independent branch pipe aeration system according to claim 1, characterized in that: The aeration main pipe (1) and the aeration distribution pipe (3) have a large diameter, while the independent branch pipe (6) has a small diameter.

3. The independent branch pipe aeration system according to claim 1, characterized in that: The pipe connectors include three-way pipe fittings and four-way pipe fittings; the end of the horizontal pipe is blocked by a pipe cap.

4. The independent branch pipe aeration system according to claim 1, wherein: Horizontal supports are installed on both sides of the distribution pipe network, and the independent branch pipe aeration system is installed on the lining plate on the inner wall of the aerobic tank mouth through the horizontal supports and bolts.

5. The independent branch pipe aeration system according to claim 1, wherein: The distribution pipe network is fixed to the horizontal support through pipe clamps.

6. The independent branch pipe aeration system according to claim 1, wherein: The aeration main pipe (1), the distribution pipe network, and the independent branch pipe (6) are all made of stainless steel.

7. The independent branch pipe aeration system according to claim 1, characterized in that: The aeration main pipe (1) is connected to the distribution pipe network through a connecting pipe, and a main pipe valve (2) is installed on the connecting pipe.

8. The independent branch pipe aeration system according to claim 7, characterized in that: The distribution pipe network includes a vertical pipe and three horizontal pipes. The three horizontal pipes include a long horizontal pipe and two short horizontal pipes. The long horizontal pipe is connected to the middle of the vertical pipe, and the short horizontal pipes are connected to both ends of the vertical pipe. The connecting pipe is connected to the vertical pipe near the middle of the long horizontal pipe.

9. An aerobic tank, characterized in that: It includes an aerobic tank body, and the independent branch pipe aeration system as described in any one of claims 1-8 is detachably installed in the aerobic tank body.

10. A multi-stage contact oxidation treatment device for sewage, characterized in that: It includes an anaerobic tank (10), an aerobic tank (9), an anaerobic tank I (101), an aerobic tank I (91), a sedimentation tank, and a middle water tank that are connected in sequence. An aeration fan (8) is connected to the aerobic tank (9) and the aerobic tank I (91) through the aeration main pipe (1), and the independent branch pipe aeration system as described in any one of claims 1-8 is detachably installed in the aerobic tank (9) and the aerobic tank I (91).

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