Aeration device of water treatment circulating tank

Abstract

The utility model relates to the technical field of sewage treatment aeration devices, and discloses a water treatment circulating tank aeration device which comprises a tank surface bracket clamped and mounted on a circulating tank, a sleeve is arranged in the middle of the tank surface bracket, an air receiving pipe is arranged on the sleeve in an inserting manner, the output end of the air receiving pipe is connected with a plurality of branch pipes, and the branch pipes are connected with a water inlet pipe and a water outlet pipe. A plurality of spiral nozzles are arranged on the branch pipe; the input end of the air receiving pipe is connected with the output end of the air blower, and the air blower is fixedly installed on the base beside the circulating groove. The tank surface bracket can be directly arranged in the existing circulating tank, is simple in structure and convenient to operate, effectively avoids the problem that a water sample does not reach the standard and cannot be discharged due to low pure COD (Chemical Oxygen Demand), saves the production cost, and is matched with the spiral spray heads with different angles, so that dirt at the bottom of the tank body can be blown up, and the water quality is improved. And waves can be formed in the tank body, so that the dissolved oxygen content of sewage can be remarkably improved, and the water treatment efficiency can be improved.

Description

Technical Field

[0001] This utility model relates to the technical field of aeration devices for sewage treatment, and in particular to an aeration device for a water treatment circulating tank. Background Technology

[0002] Chemical oxygen demand (COD) is an important indicator for measuring the organic matter content in wastewater. It refers to the amount of oxidant consumed when treating a water sample under certain conditions using a strong oxidant. Therefore, COD can serve as a comprehensive indicator of the relative content of organic matter. For natural water bodies, such as rivers, lakes, and oceans, COD is one of the key indicators for assessing the degree of water pollution. When dissolved oxygen in water decreases to a certain level, it threatens the survival of aquatic organisms, such as causing fish to suffocate and die. In wastewater treatment plants, COD is an important parameter for monitoring the effectiveness of wastewater treatment processes. For various wastewater discharge sources, such as industrial enterprises and wastewater treatment plants, COD is an important emission control indicator. Corresponding COD emission standards are formulated based on the destination of wastewater discharge (e.g., discharge into surface water, municipal sewage networks, etc.) and the functional requirements of the receiving water body.

[0003] After the production wastewater undergoes various treatment processes, it can be discharged once it meets the discharge standards. However, if the water contains reducing substances (such as ferrous ions), for example, ferrous ions (Fe2+) will be oxidized to ferric ions (Fe3+). During COD measurement, these oxidized substances may consume additional oxidant (such as potassium dichromate), thus increasing the measured COD value and failing to meet the discharge standards. Introducing compressed air allows the oxygen in the air to oxidize these reducing substances, thereby increasing the COD value in the water sample and meeting the discharge standards. Utility Model Content

[0004] The purpose of this invention is to provide an aeration device for a water treatment circulating tank to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] An aeration device for a water treatment circulating tank includes a tank surface support that is snapped onto the circulating tank. A sleeve is provided in the middle of the tank surface support, and an air inlet pipe is inserted into the sleeve. The output end of the air inlet pipe is connected to several branch pipes, and several spiral nozzles are provided on the branch pipes. The input end of the air inlet pipe is connected to the output end of a blower, and the blower is fixedly installed on a base next to the circulating tank.

[0007] Both ends of the groove support are slidably equipped with inverted "U"-shaped sliders. The top of the slider has a rectangular through hole that matches the groove support, and the direction of the through hole is perpendicular to the opening direction of the bottom of the slider.

[0008] The width of the bottom opening of the slider must be greater than the edge thickness of the circulation groove.

[0009] An "L"-shaped connector is provided between the air inlet pipe and the output end of the blower, and the connector is suspended from the roof beam by a hanger rod.

[0010] The output end of the blower is connected to the connector via a connecting pipe, and a valve is installed on the connecting pipe.

[0011] There are three branch pipes, and the three branch pipes are on the same horizontal plane.

[0012] A positioning bracket is provided in the middle of the branch pipe, and the positioning bracket is arranged parallel to the air inlet pipe.

[0013] The height of the positioning bracket is 250mm.

[0014] The angle between the spiral nozzle and the plane of the branch pipe is 45°, and several spiral nozzles are evenly distributed on the branch pipe.

[0015] The directions of two adjacent spiral nozzles on the same branch pipe are different.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0017] This utility model utilizes a tank surface support that can be directly installed in an existing circulation tank. It has a simple structure and is easy to operate. It effectively avoids the problem of water samples failing to meet standards and being unable to be discharged due to simply low COD, thus saving production costs. At the same time, with spiral nozzles at different angles, it can not only blow up the dirt at the bottom of the tank, but also form waves inside the tank, which can significantly increase the dissolved oxygen content of the wastewater and help improve water treatment efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of this utility model.

[0019] Attached figures and their names: 1. Base; 2. Blower; 3. Valve; 4. Hanger rod; 5. Trough support; 6. Branch pipe; 7. Spiral nozzle; 8. Air inlet pipe; 9. Positioning bracket. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] 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 claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0022] like Figure 1 As shown, this utility model provides an aeration device for a water treatment circulating tank, including a tank surface support 5 that is snapped onto the circulating tank. Both ends of the tank surface support 5 are slidably provided with inverted "U"-shaped sliders. The top of the sliders has a rectangular through hole that matches the tank surface support 5. The direction of the through hole is perpendicular to the direction of the bottom opening of the slider. The width of the bottom opening of the slider needs to be greater than the edge thickness of the circulating tank. Thus, the tank surface support 5 can be directly mounted on the circulating tank through the sliders, which is convenient to operate. At the same time, the inverted "U"-shaped sliders are snapped onto the edge of the tank, which can also prevent the tank surface support 5 from shaking. A sleeve is provided in the middle of the tank surface support 5. An air inlet pipe 8 is inserted into the sleeve. The input end of the air inlet pipe 8 is connected to the output end of the blower 2. The blower 2 is fixedly installed on the base 1 next to the circulating tank. The blower 2 is used to provide air. An air compressor or air manifold can also be used as a substitute. It is worth noting that, in order to improve the stability of the air inlet pipe 8, steel wire, rope or welded positioning blocks can be used to position it on the trough support 5 to further prevent it from rotating.

[0023] An "L"-shaped connector is provided between the air inlet duct 8 and the output end of the blower 2. The output end of the blower 2 is connected to the connector through a connecting pipe. A valve 3 is provided on the connecting pipe. The connector is suspended from the roof beam by a hanger 4. The hanger 4 is used to provide partial support to ensure the stability of the air supply.

[0024] The output end of the air inlet duct 8 is connected to several branch pipes 6. There are three branch pipes 6, which are on the same horizontal plane. A positioning bracket 9 is installed in the middle of the branch pipe 6. The positioning bracket 9 is parallel to the air inlet duct 8 and has a height of 250mm. The positioning bracket 9 is used to limit the distance between the branch pipe 6 and the bottom of the tank to prevent silt and dirt from clogging the spiral nozzle 7.

[0025] Several spiral nozzles 7 are installed on the branch pipe 6. The angle between the spiral nozzles 7 and the plane of the branch pipe 6 is 45°. The spiral nozzles 7 are evenly distributed on the branch pipe 6, and the directions of two adjacent spiral nozzles 7 on the same branch pipe 6 are different. The spiral nozzles 7 adopt different directions, which can not only blow up the dirt at the bottom of the tank, but also form waves inside the tank, which can significantly increase the dissolved oxygen content of the wastewater and help improve water treatment efficiency.

Claims

1. A water treatment circulating tank aeration device comprising a tank surface support (5) which is snap-fitted to the circulating tank, characterized in that: The middle part of the groove support (5) is provided with a sleeve, and an air receiving pipe (8) is inserted on the sleeve, the output end of the air receiving pipe (8) is connected with a plurality of branch pipes (6), and a plurality of spiral nozzles (7) are arranged on the branch pipes (6); the input end of the air receiving pipe (8) is connected with the output end of the air blower (2), and the air blower (2) is fixedly installed on the base (1) beside the circulating groove.

2. The aerator for a water treatment circulation tank according to claim 1, characterized by: The both ends of the groove support (5) are slidably provided with inverted "U"-shaped sliding blocks, and the top of the sliding block is provided with a rectangular through hole matched with the groove support (5), and the direction of the through hole is perpendicular to the opening direction of the bottom of the sliding block.

3. The aerator for a water treatment circulation tank according to claim 2, characterized by: The width of the opening of the bottom of the sliding block is greater than the thickness of the edge of the circulating groove.

4. The aerator for a water treatment circulation tank according to claim 1, characterized by: The air receiving pipe (8) and the output end of the air blower (2) are provided with a "L"-shaped joint, and the joint is suspended on the roof beam through a suspender (4).

5. The aerator for a water treatment circulation tank according to claim 4, characterized by: The output end of the air blower (2) is connected with the joint through a connecting pipeline, and the connecting pipeline is provided with a valve (3).

6. The aerator for a water treatment circulation tank according to claim 1, characterized by: The number of the branch pipes (6) is three, and the three branch pipes (6) are on the same horizontal plane.

7. The aerator for a water treatment lagoon as set forth in claim 6, wherein: The middle part of the branch pipe (6) is provided with a positioning support (9), and the positioning support (9) and the air receiving pipe (8) are arranged in parallel.

8. The aerator for a water treatment lagoon as defined in claim 7 wherein: The height of the positioning support (9) is 250mm.

9. The aerator for a water treatment circulation tank according to claim 1, characterized by: The included angle between the spiral nozzle (7) and the plane of the branch pipe (6) is 45°, and a plurality of spiral nozzles (7) are uniformly distributed on the branch pipe (6).

10. The aerator for a water treatment lagoon as defined in claim 9 wherein: The directions of the two adjacent spiral nozzles (7) on the same branch pipe (6) are different.

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