Emergency aeration device for sewage biochemical tank

Abstract

This utility model discloses an emergency aeration device for a wastewater biochemical tank, comprising a wastewater tank, a main pipe located on one side of the wastewater tank, and several aeration pipes located at the bottom of the wastewater tank. One end of each aeration pipe is connected to the main pipe. The main pipe has a main valve at its air inlet end, and each aeration pipe has a manual valve at its air inlet end. The main pipe also has several air pipe switch valves, a first flexible hose at the outlet end of each air pipe switch valve, a multi-port quick-connect fitting on the first flexible hose, several second flexible hoses respectively located at the interfaces of the multi-port quick-connect fittings, and a corrosion-resistant aeration head at the air outlet end of each of the second flexible hoses. This device can quickly increase the aeration rate of a wastewater tank with insufficient aeration, and is simple to manufacture, uses readily available materials, and can be quickly modified.

Description

Technical Field

[0001] This utility model relates to the technical field of aeration devices, specifically to an emergency aeration device for a sewage biochemical pond. Background Technology

[0002] Aeration tanks play several crucial roles in wastewater treatment. First, they provide dissolved oxygen, essential for the growth and metabolism of microorganisms. Sufficient oxygen promotes microbial metabolism, accelerates the oxidative degradation of wastewater, and thus improves wastewater treatment efficiency. Second, aeration tanks aid in the degradation of organic matter; through the respiratory metabolism of microorganisms, organic matter in wastewater is broken down into harmless substances. Furthermore, aeration tanks remove suspended solids; the agitation generated by rising air bubbles keeps suspended solids in suspension, facilitating subsequent sedimentation and filtration. Simultaneously, aeration tanks reduce the total nitrogen and total phosphorus content in wastewater and improve sludge settling properties, thereby improving water quality.

[0003] However, many wastewater treatment plants currently use metal pipes coiled at the bottom of the tank for aeration. After prolonged use, this leads to corrosion, cracking, or blockage of the bottom pipes. Since the wastewater tank cannot be emptied and replaced or repaired quickly enough, this results in insufficient oxygen supply to the wastewater biological treatment system. Consequently, suspended solids decrease, the oxidation and decomposition of organic matter declines, pollutant levels exceed standards, activated sludge becomes anaerobic, the tank water turns black, or the tank overflows. Therefore, a device is needed that can temporarily increase aeration when existing aeration pipes malfunction. Summary of the Invention

[0004] In order to solve one or more technical problems existing in the prior art, the purpose of this application is to provide an emergency aeration device for sewage biological treatment ponds, which can quickly increase the aeration volume of sewage ponds with insufficient aeration, and is simple to manufacture, easy to obtain materials, and quick to modify.

[0005] To solve the aforementioned technical problems, this application adopts the following technical solution:

[0006] An emergency aeration device for a wastewater biochemical pond includes a wastewater pond, a main pipe located on one side of the wastewater pond, and a plurality of aeration pipes located at the bottom of the wastewater pond. One end of each aeration pipe is connected to the main pipe. The main pipe has a main valve at its air inlet end and a manual valve at the air inlet end of each aeration pipe. The main pipe is also equipped with a plurality of air pipe switch valves, a first flexible hose located at the outlet end of the air pipe switch valve, a multi-port quick-connect air pipe connector located on the first flexible hose, a plurality of second flexible hoses located at the interfaces of the multi-port quick-connect air pipe connectors, and a corrosion-resistant aeration head located at the air outlet end of each of the second flexible hoses.

[0007] Preferably, each of the manual valves is provided with an air pipe switch valve on one side, and a metal steel pipe with a length of 15~20cm is provided between the air pipe switch valve and the main pipe.

[0008] Preferably, the number of insertion holes in the multi-vent quick-connect fitting is 3 to 5.

[0009] Preferably, the number of corrosion-resistant aeration heads can be expanded by connecting the air outlet end of the second hose to the multi-port quick-connect fitting.

[0010] Preferably, the corrosion-resistant aeration head includes a cylindrical metal tube, sealing baffles at both ends of the metal tube, a plurality of micropores on the wall of the metal tube, an interface tube on one of the sealing baffles, and one end of the second flexible tube is connected in series with the interface tube.

[0011] Preferably, the interface pipe is an internally threaded pipe, and the interface pipe and the second flexible hose are connected by a stainless steel threaded elbow joint.

[0012] Preferably, a filter screen is also provided on the inner side of the metal tube.

[0013] Preferably, the metal pipe is a stainless steel pipe or a copper pipe with a diameter of DN25 or DN20.

[0014] Preferably, the height of the metal tube is 10~12cm, and the length of the inlet tube is 3±0.5cm.

[0015] Preferably, the diameter of the micropore is 0.8~1mm, the interval between two adjacent micropores is 2cm, and the number of micropores in the height direction of the metal tube is 4~5.

[0016] Preferably, both the first hose and the second hose are made of PP or PVC hose.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] When multiple aeration pipes in an existing sewage tank become corroded, cracked, or blocked, leading to insufficient oxygen supply in the sewage biological treatment system, an aeration device consisting of an air pipe switch valve, a first flexible hose, a multi-port quick-connect air pipe, a second flexible hose, and corrosion-resistant aeration heads connected in series can be placed in the corresponding unaerated water area to quickly replenish the oxygen content. The increased number of corrosion-resistant aeration heads allows for greater flexibility, thereby solving problems such as decreased suspended solids, reduced organic matter oxidation and decomposition capacity, excessive levels of various pollutants, anaerobic activated sludge, blackening of the tank water, or tank overflow caused by insufficient oxygen supply. The entire mechanism is quick to install, highly flexible, simple to manufacture, and uses readily available materials. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a cross-sectional view of the corrosion-resistant aeration head of this utility model;

[0021] In the diagram: 1. Aeration pipe; 2. Sewage tank; 3. Manual valve; 4. Main valve; 5. Main pipe; 6. Corrosion-resistant aeration head; 61. Metal pipe; 62. Micropores; 63. Sealing baffle; 64. Interface pipe; 65. Filter screen; 7. Air pipe switch valve; 8. First hose; 9. Multi-port quick-connect air pipe; 10. Second hose; 12. Stainless steel threaded elbow joint. Detailed Implementation

[0022] The present application will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0023] In the description of this application, it should be understood that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0024] The terms "first," "second," etc., used in this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class, without limiting the number of objects; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0025] like Figure 1As shown, an emergency aeration device for a wastewater biochemical pond includes a wastewater pond 2, a main pipe 5 located on one side of the wastewater pond 2, and several aeration pipes 1 located at the bottom of the wastewater pond 2. One end of each aeration pipe 1 is connected to the main pipe 5. The air inlet end of the main pipe 5 is equipped with a main valve 4, and the air inlet end of each aeration pipe 1 is equipped with a manual valve 3. The main pipe 5 is also equipped with several air pipe switch valves 7, a first flexible hose 8 located at the outlet end of the air pipe switch valve 7, a multi-way quick-connect fitting 9 located on the first flexible hose 8, several second flexible hoses 10 located at the interfaces of the multi-way quick-connect fitting 9, and a corrosion-resistant aeration head 6 located at the air outlet end of the second flexible hose 10.

[0026] Modify the existing aeration system by making interval openings on the main pipe 5 and installing air pipe switch valves 7. Under normal circumstances, air pipe switch valves 7 are in the closed state. When multiple aeration pipes 1 in the existing sewage tank 2 experience corrosion cracking or blockage, leading to insufficient oxygen supply to the sewage biological treatment system, first close the manual valve 3 at the inlet end of the damaged aeration pipe 1. Then, according to the aeration location and aeration range requirements, select a certain number of corrosion-resistant aeration heads 6, first flexible hoses 8, multi-port quick-connect fittings 9, and second flexible hoses 10 to connect multiple corrosion-resistant aeration heads. After the head 6 is connected in series with the multi-port air quick connector 9 through the second hose 10, the multi-port air quick connector 9 is connected to the nearest air pipe switch valve 7 through the first hose 8. Then, the anti-corrosion aeration head 6 is dropped into different areas in the sewage tank 2 to form multiple aeration points. After the air pipe switch valve 7 is activated, the compressed air that originally entered the aeration pipe 1 can enter the anti-corrosion aeration head 6 for aeration, thereby providing emergency aeration treatment for the aeration range of the damaged aeration pipe 1. When the sewage tank 2 can be completely drained, the original aeration pipe 1 can be replaced. The newly added aeration device can be installed quickly, has high flexibility in aeration position control, and has low replacement costs. After the oxygen content is quickly replenished by the added aeration device, it can effectively solve problems such as the decline of suspended solids, the decrease in the oxidation and decomposition capacity of organic matter, the exceeding of various pollutant data, anaerobic activated sludge, blackening of pool water or pool overflow caused by insufficient oxygen supply in the pool. The entire mechanism is quick to install, highly flexible, simple to manufacture, and easy to obtain materials. Even if all aeration pipes 1 are damaged, the aeration effect of sewage pool 2 can still be guaranteed.

[0027] A further improvement is that each of the manual valves 3 is provided with an air pipe switch valve 7 on one side, and a metal steel pipe with a length of 15~20cm is provided between the air pipe switch valve 7 and the main pipe 5.

[0028] Each manual valve 3 is connected to an air pipe switch valve 7 on one side via a metal steel pipe. The length of the metal steel pipe is 15~20cm, which allows the air pipe switch valve 7 to be in an outward bulging state, making it convenient for operators to operate. At the same time, whenever an aeration pipe 1 is damaged, an aeration device can be added according to the original coverage area of ​​the aeration pipe 1, thereby achieving targeted aeration supplementation, avoiding insufficient aeration pressure during aeration, and also avoiding the occurrence of excessively long hoses.

[0029] A further improvement is that the number of insertion holes of the multi-port quick-connect fitting 9 is 3 to 5; the number of anti-corrosion aeration heads 6 can be expanded by connecting the second hose 10 to the multi-port quick-connect fitting 9.

[0030] Generally, a multi-port quick-connect fitting 9 has 3 to 5 holes. When the number of connectable anti-corrosion aeration heads 6 is insufficient, another multi-port quick-connect fitting 9 can be connected to the air outlet of the second hose 10 to expand the number of anti-corrosion aeration heads 6. This allows for an effective increase or decrease in the number of aeration points, making the number of anti-corrosion aeration heads 6 more flexible and solving the problem of difficulty in controlling the number of aeration points.

[0031] Further improvements can be made to any of the above embodiments, such as... Figure 2 As shown, the anti-corrosion aeration head 6 includes a cylindrical metal tube 61, sealing baffles 63 at both ends of the metal tube 61, a plurality of microholes 62 on the wall of the metal tube 61, and an interface tube 64 on one of the sealing baffles 63. One end of the second flexible tube 10 is connected in series with the interface tube 64.

[0032] The corrosion-resistant aeration head 6 consists of a cylindrical metal tube 61 and two ends welded together with sealing baffles 63 to form an aeration chamber. Then, micro-holes 62 are made in the wall of the metal tube 61 to form aeration holes. At the same time, a hole is made in one of the sealing baffles 63 and an interface pipe 64 is welded to it as an air inlet pipe interface, which can facilitate the connection of one end of the second hose 10 to the interface pipe 64 in series. The whole structure is simple, highly corrosion-resistant, has a long service life, and is low in manufacturing cost, making it more convenient to replace.

[0033] The interface pipe 64 is an internally threaded pipe. The interface pipe 64 and the second hose 10 are connected by a stainless steel threaded elbow connector 12. One end of the stainless steel threaded elbow connector 12 is connected to the interface pipe 64 by threads, and the other end is inserted into the second hose 10 to achieve installation. The stainless steel threaded elbow connector 12 can be purchased online. After installation, it has high firmness and facilitates the disassembly and assembly of the second hose 10 and the anti-corrosion aeration head 6.

[0034] A further improvement is made by providing a filter screen 65 on the inner side of the metal tube 61.

[0035] Since the main pipe 5 is a metal pipe 61, rust and other particles will accumulate inside after long-term use. These particles, when entering the corrosion-resistant aeration head 6, can clog the micropores 62 on the aeration head 6, especially since the aeration head 6 often lies flat at the bottom of the pool, thus affecting the aeration effect. Therefore, a filter screen 65 is welded inside the metal pipe 61, located near the end of the interface pipe 64. When rust enters, it is filtered through the filter screen 65 and accumulates in the area between the filter screen 65 and the interface pipe 64. This allows the gas to pass through the filter screen 65 effectively for aeration without clogging the micropores 62, ensuring both air supply and aeration efficiency. Later, when handling the filtered material, it can be removed by inverting the pipe and tapping it to make it fall out of the interface pipe 64.

[0036] A further improvement is made as follows: the metal tube 61 is made of stainless steel or copper with a diameter of DN25 or DN20; the height of the metal tube 61 is 10~12cm, and the length of the inlet tube is 3±0.5cm; the diameter of the micropore 62 is 0.8~1mm, the interval between two adjacent micropores 62 is 2cm, and the number of micropores 62 in the height direction of the metal tube 61 is 4~5; both the first flexible tube 8 and the second flexible tube 10 are made of PP or PVC flexible tubes.

[0037] Metal pipe 61 is made of stainless steel or copper with a diameter of DN25 or DN20 as the device body. Its size should not be too large, with a height of approximately 10cm being ideal. A circular stainless steel plate is cut from the bottom and top of metal pipe 61 to serve as a sealing baffle 63, and the two are welded together to ensure long-term durability. A short internally threaded pipe of about 3cm is drilled and welded onto the upper sealing baffle 63 to connect a PVC hose. Microholes 62 are formed using a drill bit of about 0.8mm, drilled vertically, with a spacing of 2cm between each hole. It is best to drill only 4 / 5 holes. Similarly, on the circular metal pipe 61, 4 / 5 holes are drilled at 2cm intervals in an arc shape, without needing to be aligned. This design primarily disperses air after it exits the stainless steel pipe, avoiding concentration of aeration in one area. This allows the air to fully dissolve in the oxidation tank after aeration, effectively and quickly suspending and settling suspended solids in wastewater tank 2, promoting sludge settling efficiency.

[0038] The above embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of protection of this application. Any non-substantial changes and substitutions made by those skilled in the art based on this application shall fall within the scope of protection claimed by this application.

Claims

1. An emergency aeration device for a wastewater biochemical tank, comprising a wastewater tank (2), a main pipe (5) disposed on one side of the wastewater tank (2), and a plurality of aeration pipes (1) disposed at the bottom of the wastewater tank (2), one end of each aeration pipe (1) being connected to the main pipe (5), a main valve (4) being provided at the air inlet end of the main pipe (5), and a manual valve (3) being provided at the air inlet end of each aeration pipe (1), characterized in that: The main pipe (5) is also provided with several air pipe switch valves (7), a first hose (8) at the outlet end of the air pipe switch valve (7), a multi-port air pipe quick connector (9) on the first hose (8), several second hoses (10) respectively on the interface of the multi-port air pipe quick connector (9), and a corrosion-resistant aeration head (6) at the air outlet end of the second hose (10).

2. The emergency aeration device for a wastewater biochemical tank according to claim 1, characterized in that: Each of the manual valves (3) is provided with an air pipe switch valve (7) on one side, and a metal steel pipe with a length of 15~20cm is provided between the air pipe switch valve (7) and the main pipe (5).

3. The emergency aeration device for a wastewater biochemical tank according to claim 2, characterized in that: The number of insertion holes in the multi-port quick-connect fitting (9) is 3 to 5.

4. The emergency aeration device for a wastewater biochemical tank according to claim 1, characterized in that: The number of corrosion-resistant aeration heads (6) can be expanded by connecting the air outlet of the second hose (10) to the quick-connect fitting (9) of the multi-port air pipe.

5. The emergency aeration device for a wastewater biological treatment tank according to claim 1, characterized in that: The corrosion-resistant aeration head (6) includes a cylindrical metal tube (61), sealing baffles (63) at both ends of the metal tube (61), a number of microholes (62) on the wall of the metal tube (61), and an interface tube (64) on one of the sealing baffles (63). One end of the second flexible tube (10) is connected in series with the interface tube (64).

6. The emergency aeration device for a wastewater biochemical tank according to claim 5, characterized in that: The interface pipe (64) is an internally threaded pipe, and the interface pipe (64) and the second hose (10) are connected by a stainless steel threaded elbow joint (12).

7. The emergency aeration device for a wastewater biochemical tank according to claim 5, characterized in that: A filter screen (65) is also provided on the inner side of the metal tube (61).

8. The emergency aeration device for a wastewater biochemical tank according to claim 5, characterized in that: The metal pipe (61) is a stainless steel pipe or copper pipe with a diameter of DN25 or DN20.

9. The emergency aeration device for a wastewater biochemical tank according to claim 8, characterized in that: The height of the metal tube (61) is 10~12cm, and the length of the interface tube (64) is 3±0.5cm.

10. The emergency aeration device for a wastewater biological treatment tank according to claim 1, characterized in that: Both the first hose (8) and the second hose (10) are made of PP or PVC hose.

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