Heat exchange cooling device for nitration aeration system

Abstract

The invention relates to the technical field of nitrification aeration systems, in particular to a heat exchange cooling device for a nitrification aeration system. The heat exchange cooling device for the nitrification aeration system comprises a reaction tank, cooling pipes, a lifting structure, a cleaning structure and a backflow structure, a liquid inlet pipe is fixedly connected to the top of one end of the bottom of the reaction tank, a liquid outlet pipe is fixedly connected to the middle of the other end of the reaction tank, and multiple groups of cooling pipes are mounted in the reaction tank at equal intervals; the cooling pipe is used for cooling materials in the reaction tank, a lifting structure is mounted at one end of the reaction tank and used for lifting the cooling pipe, cleaning structures are mounted on two sides of the cooling pipe, and a backflow structure is mounted on one side of the reaction tank and used for pumping reaction liquid at the bottom of the reaction tank and conveying the reaction liquid to the top of the reaction tank. The heat exchange cooling device for the nitrification aeration system provided by the invention has the advantages of diffusing nitrifying bacteria, promoting heat exchange between reaction liquids, automatically cleaning and increasing the capacity of the reaction tank.

Description

Technical Field

[0001] The invention relates to the technical field of nitrification aeration systems, and in particular to a heat exchange cooling device for a nitrification aeration system. Background Art

[0002] In the nitrification aeration system, the materials in the reaction tank need to be treated with biological nitrification to remove pollutants such as ammonia nitrogen. In this process, microorganisms carry out metabolic activities under suitable temperature, oxygen and nutrient conditions to convert ammonia nitrogen into nitrate. However, the nitrification reaction is an exothermic process. As the reaction proceeds, the temperature in the reaction tank will gradually increase. Excessively high temperature will not only affect the activity of nitrifying bacteria and reduce treatment efficiency, but may also cause the death of microorganisms and destroy the stability of the system.

[0003] Traditional cooling methods include directly adding cold water to the reaction tank or using external cooling equipment. However, these methods have some problems. Directly adding cold water to the reaction tank may cause uneven temperature distribution and affect the effect of nitrification reaction, while external cooling equipment may increase the complexity and operating costs of the system. In addition, the cooling pipe is a commonly used heat exchange equipment in the nitrification aeration system. After long-term use, its outer wall is prone to adsorb impurities and microorganisms, forming a layer of biofilm. This biofilm will not only reduce the cooling effect of the cooling pipe, but also may become a gathering place for pollutants and pathogens, posing a threat to the hygiene and safety of the system.

[0004] Therefore, it is necessary to provide a new heat exchange cooling device for nitrification aeration system to solve the above technical problems. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a heat exchange cooling device for a nitrification aeration system. The heat exchange cooling device for the nitrification aeration system provided by the present invention comprises: a reaction tank, a cooling pipe, a storage tank, a cooling tower, an aerator, a lifting structure, a cleaning structure, and a reflux structure. A liquid inlet pipe is fixedly connected to the top of one end of the bottom of the reaction tank, and a liquid outlet pipe is fixedly connected to the middle of the other end of the reaction tank. A plurality of groups of cooling pipes are equidistantly installed inside the reaction tank. The cooling pipes are used to cool the materials in the reaction tank. A storage tank is installed on one side of the reaction tank. The storage tank is connected to the cooling pipe through a pipeline. A circulating pump body is fixedly connected to the side of the storage tank close to the output pipeline. The circulating pump body is used to supply cooling liquid. To provide circulation power, a cooling tower is installed on one side of the storage tank, the bottom of the cooling tower is connected to the top of the storage tank through a pipeline, the top of the cooling tower is connected to the cooling pipe through a pipeline, an aerator is installed on one side of the reaction tank, the output end of the aerator is connected to the bottom of the reaction tank through a pipeline, a lifting structure is installed at one end of the reaction tank, the lifting structure is used to lift the cooling pipe, cleaning structures are installed on both sides of the cooling pipe, the cleaning structure is used to clean the cooling pipe, a reflux structure is installed on one side of the reaction tank, the reflux structure is used to extract the reaction liquid at the bottom of the reaction tank and transport it to the top of the reaction tank.

[0006] Preferably, the lifting structure includes: a motor, a first worm, a first transverse worm wheel, a screw and a support rod. The motor is fixedly connected to one side of the reaction tank, the first worm is rotatably connected to the bottom of the reaction tank, the output end of the motor is fixedly connected to one end of the first worm, the first transverse worm wheel is symmetrically rotatably connected to the bottom of the reaction tank, the first transverse worm wheels are meshingly connected to the first worm, the top of the first transverse worm wheel is fixedly connected to the screw, and the middle of the screw is threadedly connected to the support rod.

[0007] Preferably, the cleaning structure comprises: a longitudinal worm gear, a second worm gear, a second transverse worm gear, a push column, a slide plate, a brush plate, an L-shaped rod, a T-shaped rod, a rack and a gear, the bottom of the reaction pool is located below the first worm gear and is rotatably connected to the longitudinal worm gear, the longitudinal worm gear is meshed with the first worm gear, and the side of the longitudinal worm gear close to the support rod is fixedly connected to the second worm gear, and a plurality of groups of second transverse turbines are equidistantly rotatably connected to the bottom of the reaction pool, and the second transverse worm gears are all meshed with the second worm gear, and the top of the second transverse turbine is fixedly connected to a push column, and a plurality of groups of slide plates are equidistantly installed on the side where the two support rods are close to each other, and the two ends of the slide plate are respectively fixedly connected to the two support rods, and the bottom of the slide plate is slidably connected to a brush plate, and the longitudinal axis of the brush plate is slidably connected to the L-shaped rod, and the bottom of the L-shaped rod located between the plurality of cooling pipes is fixedly connected to a T-shaped rod, and one end of the T-shaped rod close to the push column is sleeved on the outside of the push column, and one end of the bottom of the L-shaped rod close to the cooling pipe is fixedly connected to the rack, and the bottom of the reaction pool is rotatably connected to a gear, and the gear is meshed with the rack.

[0008] Preferably, the reflux structure includes: a reflux pump body, a filter screen, a reflux pipe, a nozzle and an impeller. The reflux pump body is fixedly connected to one side of the reaction tank, the filter screen is fixedly connected to the bottom of the reaction tank, the input end of the reflux pump body is connected to the filter screen through a pipe, the output end of the reflux pump body is fixedly connected to the reflux pipe, the top of the reflux pipe extends into the interior of the reaction tank from the top of the reaction tank and is rotatably connected to the nozzle, and the top of the nozzle is fixedly connected to the impeller.

[0009] Preferably, the top of the cooling pipe passes through the support rod and is fixedly connected to the support rod.

[0010] Preferably, multiple groups of bristles are equidistantly fixedly connected to both sides of the brush plate between the multiple groups of cooling tubes, and multiple groups of bristles are equidistantly fixedly connected to the side of the brush plate located on one side of the multiple groups of cooling tubes close to the cooling tubes.

[0011] Preferably, the top of the impeller is designed to be conical, the bottom of the impeller is rotatably connected to a cross rod, the cross rod is fixedly connected to the return pipe, the cross rod is used to auxiliary support the impeller, the filter screen is designed to be hemispherical, and the nozzle is designed to be curved.

[0012] Preferably, the slide plate is provided with a square through slide groove for the L-shaped rod to move.

[0013] Preferably, the pipes located inside the reaction tank and fixedly connected to the top of the cooling pipe are all corrugated hoses.

[0014] Preferably, a plurality of groups of temperature sensors are equidistantly and fixedly connected to one side of the reaction pool.

[0015] Compared with the related art, the heat exchange cooling device for the nitrification aeration system provided by the present invention has the following beneficial effects: Diffusion of nitrifying bacteria and promotion of heat exchange between reaction liquids: Through the reflux structure, the liquid at the bottom of the reaction tank can be transported to the top of the reaction tank, which can not only diffuse nitrifying bacteria and promote heat exchange between reaction liquids, but also bring more oxygen into the reaction tank through reflux spraying; Automatic cleaning: When the cooling tube is stored in the reaction tank for a long time, the outer wall of the cooling tube will absorb impurities, reducing the cooling effect. This device is equipped with a cleaning structure to clean the outer wall of the cooling tube and improve the cooling efficiency of the cooling tube; Increase the capacity of the reaction pool: This device is equipped with a lifting structure and a temperature sensor. The temperature of each reaction layer of the reaction pool is monitored by the temperature sensor. The cooling pipe is moved to the reaction layer that needs to be cooled in conjunction with the lifting structure to achieve zoned cooling, which can not only reduce the cost of cooling pipe materials, but also increase the capacity of the reaction pool. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the structure of a heat exchange cooling device for a nitrification aeration system provided by the present invention; Figure 2 for Figure 1 The schematic diagram of the structure inside the reaction pool shown; Figure 3 for Figure 2 A schematic diagram of the structure of the reflux structure shown; Figure 4 for Figure 3 A schematic diagram of the structure of part A shown; Figure 5 for Figure 2 The structural schematic diagram of the lifting structure shown; Figure 6 for Figure 5 A schematic diagram of the structure of structure B shown; Figure 7 for Figure 2 A schematic structural diagram of the cleaning structure shown; Figure 8 for Figure 7 Schematic diagram of the structure of the C structure shown.

[0017] Numbers in the figure: 1, reaction tank; 2, liquid inlet pipe; 3, liquid outlet pipe; 4, cooling pipe; 5, storage tank; 6, circulation pump body; 7, cooling tower; 8, aerator; 9, lifting structure; 91, motor; 92, first worm; 93, first transverse worm gear; 94, screw; 95, support rod; 10, cleaning structure; 101, longitudinal worm gear; 102, second worm; 103, second transverse worm gear; 104, push column; 105, slide plate; 106, brush plate; 107, L-shaped rod; 108, T-shaped rod; 109, rack; 110, gear; 11, reflux structure; 111, reflux pump body; 112, filter screen; 113, reflux pipe; 114, nozzle; 115, impeller; 12, bristles; 13, cross rod; 14, temperature sensor. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0019] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0020] See also Figures 1 to 8A heat exchange cooling device for a nitrification aeration system, the heat exchange cooling device for a nitrification aeration system comprising: a reaction tank 1, a cooling pipe 4, a storage tank 5, a cooling tower 7, an aerator 8, a lifting structure 9, a cleaning structure 10, and a reflux structure 11. A liquid inlet pipe 2 is fixedly connected to the top of one end of the bottom of the reaction tank 1, and a liquid outlet pipe 3 is fixedly connected to the middle of the other end of the reaction tank 1. A plurality of groups of cooling pipes 4 are equidistantly installed inside the reaction tank 1. The cooling pipes 4 are used to cool the materials in the reaction tank 1. A storage tank 5 is installed on one side of the reaction tank 1. The storage tank 5 is connected to the cooling pipe 4 through a pipeline. A circulation pump body 6 is fixedly connected to the side of the storage tank 5 close to the output pipeline. The circulation pump body 6 is used to provide circulation power for the coolant. A cooling tower 7 is installed on one side of the storage tank 5. The bottom of the cooling tower 7 is connected with the top of the storage tank 5 through a pipeline, and the top of the cooling tower 7 is connected with the cooling pipe 4 through a pipeline. An aerator 8 is installed on one side of the reaction tank 1, and the output end of the aerator 8 is connected with the bottom of the reaction tank 1 through a pipeline. A lifting structure 9 is installed at one end of the reaction tank 1, and the lifting structure 9 is used to lift the cooling pipe 4. Cleaning structures 10 are installed on both sides of the cooling pipe 4. The cleaning structure 10 is used to clean the cooling pipe 4. A reflux structure 11 is installed on one side of the reaction tank 1. The reflux structure 11 is used to extract the reaction liquid at the bottom of the reaction tank 1 and transport it to the top of the reaction tank 1. The pipelines located inside the reaction tank 1 and fixedly connected to the top of the cooling pipe 4 are all corrugated hoses. Multiple groups of temperature sensors 14 are fixedly connected to one side of the reaction tank 1 at equal intervals.

[0021] It should be noted that the temperature sensor 14 is used to monitor the temperature of each reaction layer of the reaction pool 1, and cooperates with the lifting structure 9 to move the cooling pipe 4 to the reaction layer that needs to be cooled, so as to achieve zoned cooling. The corrugated hose can make the lifting of the cooling pipe 4 not be affected by other components.

[0022] See also Figures 1 to 6 The lifting structure 9 includes: a motor 91, a first worm 92, a first transverse worm wheel 93, a screw 94 and a support rod 95. The motor 91 is fixedly connected to one side of the reaction pool 1, and the first worm 92 is rotatably connected to the bottom of the reaction pool 1. The output end of the motor 91 is fixedly connected to one end of the first worm 92, and the first transverse worm wheel 93 is symmetrically rotatably connected to the bottom of the reaction pool 1. The first transverse worm wheels 93 are meshed with the first worm 92. The top of the first transverse turbine is fixedly connected to the screw 94, and the middle of the screw 94 is threadedly connected to the support rod 95. The top of the cooling pipe 4 passes through the support rod 95 and is fixedly connected to the support rod 95; It should be noted that: the threaded rod drives the cooling pipe 4 fixedly connected to the support rod 95 to move up and down through the support rod 95; See also Figures 1 to 8The cleaning structure 10 includes: a longitudinal worm gear 101, a second worm 102, a second transverse worm gear 103, a push column 104, a slide plate 105, a brush plate 106, an L-shaped rod 107, a T-shaped rod 108, a rack 109 and a gear 110. The bottom of the reaction pool 1 is located below the first worm 92 and is rotatably connected with the longitudinal worm gear 101. The longitudinal worm gear 101 is meshed with the first worm 92, and the side of the longitudinal worm gear 101 close to the support rod 95 is fixedly connected with the second worm 102. A plurality of groups of second transverse turbines are equidistantly rotatably connected to the bottom of the reaction pool 1, and the second transverse worm gears 103 are all meshed with the second worm 102. A push column 104 is fixedly connected to the top of the second transverse turbine. A plurality of groups of slide plates 105 are equidistantly installed on the side where the two support rods 95 are close to each other, and the two ends of the slide plates 105 are respectively connected to the two support rods. The rod 95 is fixedly connected, and the bottom of the slide plate 105 is slidably connected with a brush plate 106, and the longitudinal axis of the brush plate 106 is slidably connected with an L-shaped rod 107, and the bottom of the L-shaped rod 107 located between the multiple groups of cooling tubes 4 is fixedly connected with a T-shaped rod 108, and the end of the T-shaped rod 108 close to the push column 104 is sleeved on the outside of the push column 104, and the end of the bottom of the L-shaped rod 107 close to the cooling tube 4 is fixedly connected to a rack 109, and the bottom of the reaction tank 1 is rotatably connected with a gear 110, and the gear 110 is meshed with the rack 109. Both sides of the brush plate 106 located between the multiple groups of cooling tubes 4 are equidistantly fixedly connected with multiple groups of bristles 12, and the brush plate 106 located on one side of the multiple groups of cooling tubes 4 is equidistantly fixedly connected with a side close to the cooling tube 4. The slide plate 105 is provided with a square through-groove for the L-shaped rod 107 to move; It should be noted that: through the design of the rack 109 and the gear 110, the movement directions of the brush plates 106 on both sides of the cooling pipe 4 are opposite, so as to further improve the cleaning efficiency.

[0023] See also Figures 1 to 4 The reflux structure 11 includes: a reflux pump body 111, a filter screen 112, a reflux pipe 113, a nozzle 114 and an impeller 115. The reflux pump body 111 is fixedly connected to one side of the reaction pool 1, and the filter screen 112 is fixedly connected to the bottom of the reaction pool 1. The input end of the reflux pump body 111 is connected with the filter screen 112 through a pipeline, and the output end of the reflux pump body 111 is fixedly connected to the reflux pipe 113. The top of the reflux pipe 113 extends into the interior of the reaction pool 1 from the top of the reaction pool 1 and is rotatably connected to the nozzle 114. The top of the nozzle 114 is fixedly connected to the impeller 115. The top of the impeller 115 is conical in design, and the bottom of the impeller 115 is rotatably connected to a cross rod 13. The cross rod 13 is fixedly connected to the reflux pipe 113, and the cross rod 13 is used to auxiliary support the impeller 115. The filter screen 112 is hemispherical in design, and the nozzle 114 is curved in design.

[0024] It should be noted that the arc-shaped design of the nozzle 114 can convert the centrifugal force exerted on the reaction liquid into power when the nozzle 114 rotates, so that the reaction liquid spreads farther. The cross rod 13 and the nozzle 114 jointly limit the axis of the impeller 115, share the force on the axis of the impeller 115, and increase the service life of the impeller 115.

[0025] The working principle of the heat exchange cooling device for the nitrification aeration system provided by the present invention is as follows: Nitrification reaction and cooling liquid circulation: the reaction tank 1 receives the material to be treated, such as sewage, through the liquid inlet pipe 2, and performs nitrification reaction under the action of nitrifying bacteria. The circulation pump body 6 is started, and the cooling liquid is driven by the circulation pump body 6 in the storage tank 5 and enters the cooling pipe 4 inside the reaction tank 1 through the pipeline. The cooling pipe 4 performs heat exchange with the material in the reaction tank 1 to reduce the temperature of the material. The cooling liquid after heat exchange flows out from one end of the cooling pipe 4 close to the cooling tower 7, flows into the cooling tower 7 through the pipeline, and flows back to the storage tank 5 after being cooled, forming a closed loop. Lifting and lowering of the cooling tube 4: the temperature sensor 14 monitors the temperature of each reaction layer and transmits the temperature information to the processor, which drives the motor 91, and the motor 91 drives the first worm 92 to rotate. The first worm 92 is meshed with the first transverse worm gear 93, driving the first transverse worm gear 93 and the screw 94 fixedly connected to the top thereof to rotate. The rotation of the screw 94 causes the support rod 95 to move up and down along its axis, thereby driving the cooling tube 4 fixedly connected to the support rod 95 to rise and fall. In this way, the position of the cooling tube 4 can be adjusted according to the temperature of different reaction layers in the reaction pool 1 to achieve zoned cooling; Cleaning of the cooling pipe 4: When the cooling pipe 4 moves, the first worm 92 rotates, and at the same time drives the longitudinal worm wheel 101 and the second worm 102 fixedly connected to the longitudinal worm wheel 101 to rotate, the second worm 102 drives the second transverse turbine meshing with it to rotate, the rotation of the second transverse turbine drives the push column 104 to move, the push column 104 drives the T-shaped rod 108 to move in the same direction, the T-shaped rod 108 drives the L-shaped rod 107 fixedly connected to it to move in the same direction, and the L-shaped rod 107 fixedly connected to the T-shaped rod 108 drives the brush plate 106 on the slide plate 105 slides on the L-shaped rod 107. In addition, the rack 109 fixedly connected to the bottom of the L-shaped rod 107 is meshed with the gear 110 rotatably connected to the bottom of the reaction tank 1. Therefore, when the L-shaped rod 107 located between the cooling tubes 4 moves, the gear 110 drives the L-shaped rods 107 located on both sides of the cooling tube 4 to move in opposite directions. The L-shaped rods 107 located on both sides of the cooling tube 4 drive the brush plates 106 slidably connected thereto to move in the same direction. The bristles 12 on the brush plates 106 contact the outer wall of the cooling tube 4 to remove impurities and biofilm attached thereto. Reflux of reaction liquid: start the reflux pump body 111, extract the reaction liquid filtered by the filter screen 112 from the bottom of the reaction pool 1 through the pipeline, transport it into the reflux pipeline 113, and spray it from the top of the reaction pool 1 through the curved surface design of the nozzle 114. During the spraying process, the impeller 115 on the top of the nozzle 114 rotates due to the impact of the water flow. While stirring the reaction liquid, it gives the reaction liquid a certain centrifugal force, so that the reaction liquid is scattered over a larger area, which not only helps to spread nitrifying bacteria and promote heat exchange between reaction liquids, but also can bring more oxygen into the reaction pool 1 through reflux spraying, thereby improving the efficiency of the nitrification reaction.

[0026] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A heat exchange cooling device for a nitrification aeration system, characterized in that: include: A reaction pool (1), wherein a liquid inlet pipe (2) is fixedly connected to the top of one end of the bottom of the reaction pool (1), and a liquid outlet pipe (3) is fixedly connected to the middle of the other end of the reaction pool (1); Cooling pipes (4), a plurality of groups of cooling pipes (4) are equidistantly installed inside the reaction pool (1), and the cooling pipes (4) are used to cool the material in the reaction pool (1); A storage tank (5), wherein the storage tank (5) is installed on one side of the reaction tank (1), the storage tank (5) is connected to the cooling pipe (4) through a pipeline, and a circulation pump body (6) is fixedly connected to the side of the storage tank (5) close to the output pipeline, and the circulation pump body (6) is used to provide power for the circulation of the cooling liquid; A cooling tower (7), wherein a cooling tower (7) is installed on one side of the storage tank (5), the bottom of the cooling tower (7) is connected to the top of the storage tank (5) through a pipeline, and the top of the cooling tower (7) is connected to the cooling pipe (4) through a pipeline; An aerator (8), an aerator (8) is installed on one side of the reaction tank (1), and an output end of the aerator (8) is connected to the bottom of the reaction tank (1) through a pipeline; A lifting structure (9), wherein one end of the reaction tank (1) is provided with the lifting structure (9), and the lifting structure (9) is used to lift and lower the cooling tube (4); A cleaning structure (10), wherein the cleaning structures (10) are installed on both sides of the cooling pipe (4), and the cleaning structure (10) is used to clean the cooling pipe (4); A reflux structure (11) is installed on one side of the reaction tank (1). The reflux structure (11) is used to extract the reaction liquid at the bottom of the reaction tank (1) and transport it to the top of the reaction tank (1).

2. The heat exchange cooling device for the nitrification aeration system according to claim 1, characterized in that: The lifting structure (9) comprises: a motor (91), a first worm (92), a first transverse worm gear (93), a screw (94) and a support rod (95); one side of the reaction pool (1) is fixedly connected to the motor (91); the bottom of the reaction pool (1) is rotatably connected to the first worm (92); the output end of the motor (91) is fixedly connected to one end of the first worm (92); the bottom of the reaction pool (1) is symmetrically rotatably connected to the first transverse worm gear (93); the first transverse worm gears (93) are meshingly connected to the first worm (92); the top of the first transverse worm gear (93) is fixedly connected to the screw (94); and the middle of the screw (94) is threadedly connected to the support rod (95).

3. The heat exchange cooling device for the nitrification aeration system according to claim 1, characterized in that: The cleaning structure (10) comprises: a longitudinal worm gear (101), a second worm (102), a second transverse worm gear (103), a push column (104), a slide plate (105), a brush plate (106), an L-shaped rod (107), a T-shaped rod (108), a rack (109) and a gear (110); the bottom of the reaction pool (1) is located below the first worm (92) and is rotatably connected to the longitudinal worm gear (101); the longitudinal worm gear (101) is meshingly connected to the first worm (92); a side of the longitudinal worm gear (101) close to the support rod (95) is fixedly connected to the second worm (102); a plurality of groups of second transverse worm gears (103) are equidistantly rotatably connected to the bottom of the reaction pool (1); the second transverse worm gears (103) are all meshingly connected to the second worm (102); the top of the second transverse worm gear (103) is fixedly connected to the second worm (102); A push column (104) is connected, and a plurality of groups of slide plates (105) are equidistantly installed on one side where the two support rods (95) are close to each other. The two ends of the slide plates (105) are respectively fixedly connected to the two support rods (95). The bottom of the slide plates (105) is slidably connected to a brush plate (106). The longitudinal axis of the brush plate (106) is slidably connected to an L-shaped rod (107). The bottom of the L-shaped rod (107) located between the plurality of cooling tubes (4) is fixedly connected to a T-shaped rod (108). One end of the T-shaped rod (108) close to the push column (104) is sleeved on the outside of the push column (104). One end of the bottom of the L-shaped rod (107) close to the cooling tube (4) is fixedly connected to a rack (109). A gear (110) is rotatably connected to the bottom of the reaction pool (1), and the gear (110) is meshingly connected to the rack (109).

4. The heat exchange cooling device for the nitrification aeration system according to claim 1, characterized in that: The reflux structure (11) comprises: a reflux pump body (111), a filter screen (112), a reflux pipe (113), a nozzle (114) and an impeller (115); the reflux pump body (111) is fixedly connected to one side of the reaction pool (1); the filter screen (112) is fixedly connected to the bottom of the reaction pool (1); the input end of the reflux pump body (111) is connected to the filter screen (112) through a pipe; the output end of the reflux pump body (111) is fixedly connected to the reflux pipe (113); the top of the reflux pipe (113) extends from the top of the reaction pool (1) into the interior of the reaction pool (1) and is rotatably connected to the nozzle (114); the top of the nozzle (114) is fixedly connected to the impeller (115).

5. The heat exchange cooling device for the nitrification aeration system according to claim 2, characterized in that: The top of the cooling pipe (4) passes through the support rod (95) and is fixedly connected to the support rod (95).

6. The heat exchange cooling device for the nitrification aeration system according to claim 3, characterized in that: Multiple groups of bristles (12) are fixedly connected at equal intervals on both sides of the brush plate (106) located between the multiple groups of cooling tubes (4), and multiple groups of bristles (12) are fixedly connected at equal intervals on the side of the brush plate (106) close to the cooling tubes (4) located on one side of the multiple groups of cooling tubes (4).

7. The heat exchange cooling device for the nitrification aeration system according to claim 4, characterized in that: The top of the impeller (115) is designed to be conical, the bottom of the impeller (115) is rotatably connected to a cross rod (13), the cross rod (13) is fixedly connected to the return pipe (113), the cross rod (13) is used to assist in supporting the impeller (115), the filter screen (112) is designed to be hemispherical, and the nozzle (114) is designed to be a curved surface.

8. The heat exchange cooling device for the nitrification aeration system according to claim 3, characterized in that: The slide plate (105) is provided with a square through-slot for the L-shaped rod (107) to move.

9. The heat exchange cooling device for a nitrification aeration system according to claim 1, characterized in that: A plurality of groups of temperature sensors (14) are fixedly connected at equal intervals to one side of the reaction pool (1).

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