A heat exchange cooling device for a nitration aeration system

Abstract

The present application relates to nitration aeration system technical field, especially to a kind of heat exchange cooling device for nitration aeration system.The heat exchange cooling device for nitration aeration system includes: reaction pool, cooling pipe, lifting structure, cleaning structure, backflow structure, reaction pool one end top is fixedly connected with inlet pipe, the other end middle part of reaction pool is fixedly connected with outlet pipe, reaction pool inside equidistance is installed with multiple sets of cooling pipe, cooling pipe is used to the cooling of material in reaction pool, one end of reaction pool is installed with lifting structure, lifting structure is used to make cooling pipe lift, cooling pipe two sides are installed with cleaning structure, reaction pool one side is installed with backflow structure, backflow structure is used to extract reaction liquid at the bottom of reaction pool and transport to the top of reaction pool.The heat exchange cooling device for nitration aeration system provided in the present application has the advantages of diffusing nitrifying bacteria, promoting heat exchange between reaction liquid, automatic cleaning and increasing the capacity of reaction pool.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of nitrification aeration systems, and particularly relates to a heat exchange cooling device for a nitrification aeration system. BACKGROUND

[0002] In a nitrification aeration system, the material in the reaction tank needs to be biologically nitrified 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, and as the reaction proceeds, the temperature in the reaction tank will gradually rise. High temperature not only affects the activity of nitrifying bacteria and reduces the treatment efficiency, but also may cause the death of microorganisms and damage 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. External cooling equipment may increase the complexity and operating cost of the system. In addition, cooling pipes, as commonly used heat exchange equipment in nitrification aeration systems, are prone to adsorb impurities and microorganisms on their outer walls and form a layer of biofilm after long-term use. This layer of biofilm not only reduces the cooling effect of the cooling pipe, but also may become a gathering place for pollutants and pathogens, posing a threat to the health and safety of the system.

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

[0005] To solve the above technical problems, the present application provides a heat exchange cooling device for a nitrification aeration system.

[0006] The application provides a heat exchange cooling device for a nitration aeration system, which comprises a reaction tank, cooling pipes, a storage tank, a cooling tower, an aerator, a lifting structure, a cleaning structure, a backflow structure, a liquid inlet pipe fixedly connected to the top of one end of the reaction tank, a liquid outlet pipe fixedly connected to the middle of the other end of the reaction tank, a plurality of groups of cooling pipes installed equidistantly in the reaction tank and used for cooling materials in the reaction tank, a storage tank installed on one side of the reaction tank and communicated with the cooling pipes through a pipeline, a circulating pump body fixedly connected to the side of the storage tank close to an output pipeline and used for providing circulating power for cooling liquid, a cooling tower installed on one side of the storage tank and communicated with the top of the storage tank through a pipeline and with the cooling pipes through a pipeline, an aerator installed on one side of the reaction tank and communicated with the bottom of the reaction tank through a pipeline, a lifting structure installed on one end of the reaction tank and used for lifting the cooling pipes, a cleaning structure installed on the two sides of the cooling pipes and used for cleaning the cooling pipes, and a backflow structure installed on one side of the reaction tank and used for pumping reaction liquid at the bottom of the reaction tank to the top of the reaction tank.

[0007] Preferably, the lifting structure comprises a motor, a first worm, a first transverse worm wheel, a screw rod and a supporting rod, one side of the reaction tank is fixedly connected with the motor, the bottom of the reaction tank is rotatably connected with the first worm, the output end of the motor is fixedly connected with one end of the first worm, the bottom of the reaction tank is rotatably connected with the first transverse worm wheel in a symmetrical manner, the first transverse worm wheel is rotatably connected with the first worm, the top of the first transverse worm wheel is fixedly connected with the screw rod, and the middle of the screw rod is threadedly connected with the supporting rod.

[0008] Preferably, the cleaning structure comprises a longitudinal worm wheel, a second worm, a second transverse worm wheel, a pushing column, a sliding plate, a brush plate, an L-shaped rod, a T-shaped rod, a rack and a gear, the bottom of the reaction tank is rotatably connected with the longitudinal worm wheel below the first worm, the longitudinal worm wheel is rotatably connected with the first worm, the side of the longitudinal worm wheel close to the supporting rod is fixedly connected with the second worm, the bottom of the reaction tank is rotatably connected with a plurality of groups of second transverse worm wheels, the second transverse worm wheel is rotatably connected with the second worm, the top of the second transverse worm wheel is fixedly connected with the pushing column, the side of the two supporting rods close to each other is equidistantly installed with a plurality of groups of sliding plates, the two ends of the sliding plate are fixedly connected with the two supporting rods, the bottom of the sliding plate is slidably connected with the brush plate, the longitudinal axis of the brush plate is slidably connected with the L-shaped rod, the bottom of the L-shaped rod between the plurality of groups of cooling pipes is fixedly connected with the T-shaped rod, the end of the T-shaped rod close to the pushing column is sleeved outside the pushing column, the end of the L-shaped rod close to the cooling pipe is fixedly connected with the rack, and the bottom of the reaction tank is rotatably connected with the gear.

[0009] Preferably, the backflow structure comprises: a backflow pump body, a filter screen, a backflow pipeline, a spray head and an impeller, one side of the reaction tank is fixedly connected with the backflow pump body, the bottom of the reaction tank is fixedly connected with the filter screen, the input end of the backflow pump body is in communication with the filter screen through a pipeline, the output end of the backflow pump body is fixedly connected with the backflow pipeline, the top of the backflow pipeline extends into the reaction tank from above the reaction tank and is rotatably connected with the spray head, and the top of the spray head is fixedly connected with the impeller.

[0010] Preferably, the top of the cooling pipe penetrates through the support rod and is fixedly connected with the support rod.

[0011] Preferably, a plurality of groups of bristles are fixedly connected at equal intervals on both sides of the brush plate between the plurality of groups of cooling pipes, and a plurality of groups of bristles are fixedly connected at equal intervals on the side of the brush plate close to the cooling pipe.

[0012] Preferably, the top of the impeller is designed in a conical shape, the bottom of the impeller is rotatably connected with a cross rod, the cross rod is fixedly connected with the backflow pipeline, the cross rod is used for auxiliary supporting of the impeller, the filter screen is designed in a hemispherical shape, and the spray head is designed in an arc surface.

[0013] Preferably, the sliding plate is provided with a square through sliding groove for movement of the L-shaped rod.

[0014] Preferably, the pipelines fixedly connected with the top of the cooling pipe in the reaction tank are all corrugated hoses.

[0015] Preferably, a plurality of groups of temperature sensors are fixedly connected at equal intervals on one side of the reaction tank.

[0016] Compared with the related art, the heat exchange cooling device for the nitration aeration system has the following beneficial effects:

[0017] Diffusing nitrifying bacteria and promoting heat exchange between reaction liquids: through the backflow structure, the liquid at the bottom of the reaction tank can be delivered to the top of the reaction tank, which not only diffuses nitrifying bacteria and promotes heat exchange between reaction liquids, but also brings more oxygen into the reaction tank through backflow spraying;

[0018] Automatic cleaning: the outer wall of the cooling pipe will adsorb impurities for a long time in the reaction tank, reducing the cooling effect, the device is provided with a cleaning structure to clean the outer wall of the cooling pipe, improving the cooling efficiency of the cooling pipe;

[0019] Increasing the capacity of the reaction tank: the device is provided with a lifting structure and temperature sensors, the temperature of each reaction layer of the reaction tank is monitored through the temperature sensors, and the cooling pipe is moved to the reaction layer that needs to be cooled through the lifting structure, so as to realize partition cooling, which not only can reduce the cost of the cooling pipe material, but also can increase the capacity of the reaction tank. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1The structural schematic view of the heat exchange cooling device for the nitration aeration system provided by the present application is shown in the figure.

[0021] Figure 2 The structural schematic view of the A part is shown in the figure. Figure 1 The structural schematic view of the reaction pool inside is shown in the figure.

[0022] Figure 3 The structural schematic view of the A part is shown in the figure. Figure 2 The structural schematic view of the reflux structure is shown in the figure.

[0023] Figure 4 The structural schematic view of the A part is shown in the figure. Figure 3 The structural schematic view of the A part is shown in the figure.

[0024] Figure 5 The structural schematic view of the A part is shown in the figure. Figure 2 The structural schematic view of the A part is shown in the figure.

[0025] Figure 6 The structural schematic view of the A part is shown in the figure. Figure 5 The structural schematic view of the A part is shown in the figure.

[0026] Figure 7 The structural schematic view of the A part is shown in the figure. Figure 2 The structural schematic view of the A part is shown in the figure.

[0027] Figure 8 The structural schematic view of the A part is shown in the figure. Figure 7 The structural schematic view of the A part is shown in the figure.

[0028] In the figure, 1 is a reaction pool, 2 is a liquid inlet pipe, 3 is a liquid outlet pipe, 4 is a cooling pipe, 5 is a storage tank, 6 is a circulating pump body, 7 is a cooling tower, 8 is an aerator, 9 is a lifting structure, 91 is a motor, 92 is a first worm, 93 is a first transverse worm wheel, 94 is a screw rod, 95 is a supporting rod, 10 is a cleaning structure, 101 is a longitudinal worm wheel, 102 is a second worm, 103 is a second transverse worm wheel, 104 is a pushing column, 105 is a sliding plate, 106 is a brush plate, 107 is an L-shaped rod, 108 is a T-shaped rod, 109 is a rack, 110 is a gear, 11 is a reflux structure, 111 is a reflux pump body, 112 is a filter screen, 113 is a reflux pipe, 114 is a spray head, 115 is an impeller, 12 is a brush, 13 is a cross rod, and 14 is a temperature sensor. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application.

[0030] The specific implementation of the present application is described in detail below in combination with specific examples.

[0031] Please refer to Figures 1 to 8The utility model provides a heat exchange cooling device for nitration aeration system, the heat exchange cooling device for nitration aeration system includes: reaction pool 1, cooling pipe 4, storage tank 5, cooling tower 7, aerator 8, lifting structure 9, cleaning structure 10, backflow structure 11, reaction pool 1 one end top fixedly connected with liquid inlet pipe 2, reaction pool 1's other end middle part fixedly connected with liquid outlet pipe 3, reaction pool 1 inside equidistance is installed with multiple sets of cooling pipe 4, and cooling pipe 4 is used to the cooling of material in reaction pool 1, and reaction pool 1 one side is installed with storage tank 5, and storage tank 5 is through pipeline with cooling pipe 4 through, and storage tank 5 is fixedly connected with circulating pump body 6 on the side near output pipeline, and circulating pump body 6 is used to provide the power of circulation for cooling liquid, and storage tank 5 one side is installed with cooling tower 7, and the bottom of cooling tower 7 is through pipeline with the top of storage tank 5 through, and the top of cooling tower 7 is through pipeline with cooling pipe 4 through, and reaction pool 1 one side is installed with aerator 8, and the output end of aerator 8 is through pipeline with the bottom of reaction pool 1 through, and reaction pool 1 one end is installed with lifting structure 9, and lifting structure 9 is used to make cooling pipe 4 lift, and cooling pipe 4 both sides are installed with cleaning structure 10, and cleaning structure 10 is used to cooling pipe 4 cleaning, and reaction pool 1 one side is installed with backflow structure 11, and backflow structure 11 is used to extract the reaction liquid of reaction pool 1 bottom and is transported to reaction pool 1 top, and the pipeline of being located in reaction pool 1 inside and with cooling pipe 4 top fixedly connected is all corrugated hose, and reaction pool 1 one side equidistance fixedly connected with multiple sets of temperature sensor 14.

[0032] It should be noted that: temperature sensor 14 is used to monitor the temperature of each reaction layer of reaction pool 1, and the cooling pipe 4 is moved to the reaction layer that needs to be cooled by cooperating with the lifting structure 9, so as to realize the partition cooling, and the corrugated hose can make the lifting of the cooling pipe 4 not be affected by other components.

[0033] Please refer to Figures 1 to 6 Lifting structure 9 includes: motor 91, first worm 92, first transverse worm wheel 93, screw rod 94 and support rod 95, one side of reaction pool 1 is fixedly connected with motor 91, the bottom of reaction pool 1 is rotatably connected with first worm 92, the output end of motor 91 is fixedly connected with one end of first worm 92, the bottom of reaction pool 1 is rotatably connected with first transverse worm wheel 93, first transverse worm wheel 93 are rotatably connected with first worm 92, the top of first transverse worm wheel is fixedly connected with screw rod 94, screw rod 94 is rotatably connected with support rod 95, the top of cooling pipe 4 penetrates support rod 95 and is fixedly connected with support rod 95.

[0034] It should be noted that: the threaded rod drives the cooling pipe 4 fixedly connected with the support rod 95 to lift through the support rod 95.

[0035] Please refer to Figures 1 to 8The cleaning structure 10 comprises a longitudinal worm gear 101, a second worm gear 102, a second transverse worm gear 103, a push column 104, a sliding plate 105, a brush plate 106, an L-shaped rod 107, a T-shaped rod 108, a rack 109 and a gear 110, the longitudinal worm gear 101 is rotationally connected below the first worm gear 92 at the bottom of the reaction tank 1, the longitudinal worm gear 101 is in meshing connection with the first worm gear 92, the second worm gear 102 is fixedly connected to one side of the longitudinal worm gear 101 close to the supporting rod 95, a plurality of groups of second transverse worm gears are rotationally connected at the bottom of the reaction tank 1 at equal intervals, the second transverse worm gears 103 are in meshing connection with the second worm gear 102, the push column 104 is fixedly connected to the top of the second transverse worm gear, a plurality of groups of sliding plates 105 are installed on the sides of the two supporting rods 95 close to each other at equal intervals, the two ends of the sliding plate 105 are fixedly connected with the two supporting rods 95 respectively, the brush plate 106 is slidingly connected to the bottom of the sliding plate 105, the L-shaped rod 107 is slidingly connected to the longitudinal axis of the brush plate 106, the T-shaped rod 108 is fixedly connected to the bottom of the L-shaped rod 107 between the groups of cooling pipes 4, the T-shaped rod 108 is sleeved outside the push column 104 at one end close to the push column 104, the rack 109 is fixedly connected to one end of the L-shaped rod 107 close to the cooling pipe 4 at the bottom, the gear 110 is rotationally connected to the bottom of the reaction tank 1, the gear 110 is in meshing connection with the rack 109, a plurality of groups of brush hairs 12 are fixedly connected to the two sides of the brush plate 106 between the groups of cooling pipes 4 at equal intervals, a plurality of groups of brush hairs 12 are fixedly connected to one side of the brush plate 106 close to the cooling pipe 4, the square through sliding groove is formed in the sliding plate 105 for the movement of the L-shaped rod 107.

[0036] It should be noted that the design of the rack 109 and the gear 110 makes the movement directions of the brush plates 106 on the two sides of the cooling pipe 4 opposite, further improving the cleaning efficiency.

[0037] Please refer to Figures 1 to 4 The backflow structure 11 comprises a backflow pump body 111, a filter screen 112, a backflow pipeline 113, a spray head 114 and an impeller 115, the backflow pump body 111 is fixedly connected to one side of the reaction tank 1, the filter screen 112 is fixedly connected to the bottom of the reaction tank 1, the input end of the backflow pump body 111 is connected with the filter screen 112 through a pipeline, the output end of the backflow pump body 111 is fixedly connected with the backflow pipeline 113, the top of the backflow pipeline 113 extends into the inside of the reaction tank 1 from above the reaction tank 1 and is rotationally connected with the spray head 114, the spray head 114 is fixedly connected with the impeller 115 at the top, the impeller 115 is designed in a conical shape at the top, the bottom of the impeller 115 is rotationally connected with the cross rod 13, the cross rod 13 is fixedly connected with the backflow pipeline 113, the cross rod 13 is used for auxiliary supporting of the impeller 115, the filter screen 112 is designed in a hemispherical shape, and the spray head 114 is designed in an arc shape.

[0038] It should be noted that the arc-shaped design of the spray head 114 can convert the centrifugal force received by the reaction liquid into power when the spray head 114 rotates, so that the reaction liquid is diffused farther, the cross rod 13 and the spray head 114 jointly limit the shaft of the impeller 115, share the stress of the shaft of the impeller 115, and improve the service life of the impeller 115.

[0039] The working principle of the heat exchange cooling device for the nitrification aeration system provided by the application is as follows:

[0040] The nitrification reaction and the 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 circulating pump body 6 is started; the cooling liquid in the storage tank 5 is driven by the circulating pump body 6, enters the cooling pipe 4 inside the reaction tank 1 through the pipeline, exchanges heat with the material in the reaction tank 1, reduces the temperature of the material, and the cooling liquid after heat exchange flows out from the 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 circulation;

[0041] Lifting of the cooling pipe 4: the temperature sensor 14 monitors the temperature of each reaction layer and transmits the temperature information to the processor; the processor drives the motor 91; the motor 91 drives the first worm 92 to rotate; the first worm 92 is engaged with the first transverse worm gear 93, drives the first transverse worm gear 93 and the screw rod 94 fixedly connected at the top of the first transverse worm gear 93 to rotate, the rotation of the screw rod 94 causes the support rod 95 to move up and down along its axis, thereby driving the cooling pipe 4 fixedly connected with the support rod 95 to lift, so that the position of the cooling pipe 4 can be adjusted according to the temperature of different reaction layers in the reaction tank 1, and partition cooling is realized.

[0042] Cleaning of the cooling pipe 4: when the cooling pipe 4 moves, the first worm 92 rotates, simultaneously driving the longitudinal worm gear 101 and the second worm 102 fixedly connected with the longitudinal worm gear 101 to rotate, the second worm 102 drives the second transverse worm to rotate, the rotation of the second transverse worm 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 therewith to move in the same direction, the L-shaped rod 107 fixedly connected with the T-shaped rod 108 drives the brush plate 106 to slide on the sliding plate 105, in addition, the gear racks 109 fixedly connected at the bottom of the L-shaped rod 107 are engaged with the gear wheels 110 rotatably connected at the bottom of the reaction tank 1, therefore, when the L-shaped rod 107 between the cooling pipes 4 moves, it will drive the L-shaped rods 107 on both sides of the cooling pipes 4 to move in opposite directions through the gear wheels 110, the L-shaped rods 107 on both sides of the cooling pipes 4 drive the brush plates 106 slidably connected therewith to move in the same direction, the bristles 12 on the brush plates 106 contact the outer wall of the cooling pipes 4, and remove the impurities and biofilm attached thereto;

[0043] The reaction liquid is refluxed: the reflux pump body 111 is started, the reaction liquid filtered by the filter screen 112 at the bottom of the reaction tank 1 is extracted through the pipeline, is transported into the reflux pipeline 113, and is sprayed from above the reaction tank 1 through the arc-shaped spray head 114. In the spraying process, the impeller 115 at the top of the spray head 114 rotates due to the impact of the water flow, and gives the reaction liquid a certain centrifugal force, so that the area of the reaction liquid falling is larger. Not only is it helpful to diffuse the nitrifying bacteria and promote the heat exchange between the reaction liquids, but also more oxygen can be brought into the reaction tank 1 through the reflux spraying, so as to improve the efficiency of the nitrification reaction.

[0044] The above description is only an embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which is made by using the content of the specification and drawings of the present application, is also included in the patent protection scope of the present application.

Claims

1. A heat exchange cooling device for a nitration aeration system, characterized by, Include: Reaction tank (1), the top of one end of reaction tank (1) is fixedly connected with liquid inlet pipe (2), and the middle of the other end of reaction tank (1) is fixedly connected with liquid outlet pipe (3); Cooling pipe (4), a plurality of groups of cooling pipes (4) are installed equidistantly in reaction tank (1), and the cooling pipes (4) are used for cooling materials in reaction tank (1); Storage tank (5), a storage tank (5) is installed on one side of reaction tank (1), the storage tank (5) is through with the cooling pipe (4) through pipeline, and the storage tank (5) is fixedly connected with circulating pump body (6) on the side close to the output pipeline, and the circulating pump body (6) is used for providing circulating power for cooling liquid; Cooling tower (7), a cooling tower (7) is installed on one side of storage tank (5), and the bottom of cooling tower (7) is through with the top of storage tank (5) through pipeline, and the top of cooling tower (7) is through with the cooling pipe (4) through pipeline; Aerator (8), an aerator (8) is installed on one side of reaction tank (1), and the output end of aerator (8) is through with the bottom of reaction tank (1) through pipeline; Lifting structure (9), a lifting structure (9) is installed on one end of reaction tank (1), and the lifting structure (9) is used for lifting cooling pipe (4); Cleaning structure (10), cleaning structures (10) are installed on both sides of cooling pipe (4), and the cleaning structures (10) are used for cleaning cooling pipe (4); Backflow structure (11), a backflow structure (11) is installed on one side of reaction tank (1), and the backflow structure (11) is used for extracting reaction liquid at the bottom of reaction tank (1) and conveying to the top of reaction tank (1); Lifting structure (9) includes: motor (91), first worm (92), first transverse worm wheel (93), screw rod (94) and support rod (95), one side of reaction tank (1) is fixedly connected with motor (91), the bottom of reaction tank (1) is rotatably connected with first worm (92), the output end of motor (91) is fixedly connected with one end of first worm (92), the bottom of reaction tank (1) is rotatably connected with first transverse worm wheel (93) symmetrically, the first transverse worm wheel (93) is rotatably connected with first worm (92), the top of first transverse worm wheel (93) is fixedly connected with screw rod (94), and the middle of screw rod (94) is threadedly connected with support rod (95) 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 sliding plate (105), a brush plate (106), an L-shaped rod (107), a T-shaped rod (108), a rack (109) and a gear (110), the longitudinal worm gear (101) is rotatably connected below the first worm (92) at the bottom of the reaction tank (1), the longitudinal worm gear (101) is in meshing connection with the first worm (92), the second worm (102) is fixedly connected to one side of the longitudinal worm gear (101) close to the supporting rod (95), a plurality of groups of second transverse worm gears (103) are rotatably connected at equal intervals at the bottom of the reaction tank (1), the second transverse worm gears (103) are in meshing connection with the second worm (102), the push column (104) is fixedly connected to the top of the second transverse worm gear (103), a plurality of groups of sliding plates (105) are installed at equal intervals on one side of the two supporting rods (95) close to each other, the two ends of the sliding plate (105) are fixedly connected with the two supporting rods (95) respectively, the brush plate (106) is slidingly connected to the bottom of the sliding plate (105), the L-shaped rod (107) is slidingly connected to the longitudinal axis of the brush plate (106), the T-shaped rod (108) is fixedly connected to the bottom of the L-shaped rod (107) located between the plurality of cooling pipes (4), one end of the T-shaped rod (108) close to the push column (104) is sleeved outside the push column (104), the rack (109) is fixedly connected to one end of the L-shaped rod (107) close to the cooling pipe (4), the gear (110) is rotatably connected to the bottom of the reaction tank (1), and the gear (110) is in meshing connection with the rack (109); A plurality of groups of bristles (12) are fixedly connected at equal intervals on both sides of the brush plate (106) located between the plurality of cooling pipes (4), and a plurality of groups of bristles (12) are fixedly connected at equal intervals on one side of the brush plate (106) located on one side of the plurality of cooling pipes (4); A plurality of groups of temperature sensors (14) are fixedly connected at equal intervals on one side of the reaction tank (1).

2. The heat exchange cooling device for a nitration aeration system according to claim 1, characterized by, The backflow structure (11) comprises a backflow pump body (111), a filter screen (112), a backflow pipeline (113), a spray head (114) and an impeller (115), the backflow pump body (111) is fixedly connected to one side of the reaction tank (1), the filter screen (112) is fixedly connected to the bottom of the reaction tank (1), the input end of the backflow pump body (111) is in communication with the filter screen (112) through a pipeline, the output end of the backflow pump body (111) is fixedly connected with the backflow pipeline (113), the top of the backflow pipeline (113) extends into the reaction tank (1) from above the reaction tank (1) and is rotatably connected with the spray head (114), and the spray head (114) is fixedly connected with the impeller (115) at the top.

3. The heat exchange cooling device for a nitritation aeration system according to claim 1, characterized by, The top of the cooling pipe (4) penetrates the supporting rod (95) and is fixedly connected with the supporting rod (95).

4. The heat exchange cooling device for a nitritation aeration system according to claim 2, characterized by, The top of the impeller (115) is conical in design, the bottom of the impeller (115) is rotationally connected with a cross rod (13), the cross rod (13) is fixedly connected with the backflow pipeline (113), the cross rod (13) is used for assisting in supporting the impeller (115), the filter screen (112) is semispherical in design, and the spray head (114) is arc in design.

5. The heat exchange cooling device for a nitritation aeration system according to claim 1, characterized by, The sliding plate (105) is provided with a square through sliding groove for the movement of the L-shaped rod (107).

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