A sewage treatment aeration equipment with waste heat recovery function

Abstract

The utility model relates to sewage treatment technical field, and disclose a kind of sewage treatment aeration equipment with waste heat recovery function, including pipe body, the top of pipe body is equipped with air blower, the outside of pipe body is equipped with several aeration pipes by bottom end, the outside of aeration pipe is equipped with several aeration disc, the outside of pipe body is equipped with heat exchange subassembly by top end, the outside of pipe body is equipped with stirring subassembly by bottom end, the heat exchange subassembly includes protective sleeve, the protective sleeve is sleeved in the outside of pipe body, the outside of pipe body and the inside of protective sleeve are surrounded by spiral pipe, the top of spiral pipe is connected with inlet pipe, and solenoid valve is installed at the connecting place of inlet pipe and spiral pipe. By spiral pipe and solenoid valve, it is convenient for the recycling of pipe body heat, the temperature after water body heat exchange can be monitored, the delivery of water body is facilitated to control;Through stirring blade, aeration can be uniformly dispersed, and oxygen transfer efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a wastewater treatment aeration device with waste heat recovery function. Background Technology

[0002] Wastewater treatment aeration equipment is used to provide dissolved oxygen to wastewater treatment systems. In the aerobic biological treatment process, microorganisms need oxygen to decompose organic pollutants. Aeration equipment increases the dissolved oxygen content in the water by injecting air or oxygen, thereby promoting the degradation of organic matter.

[0003] The publication number CN216946452U discloses a wastewater treatment aeration device, including two blower assemblies. Each blower assembly has a valve and a solenoid valve installed sequentially on its air outlet pipe. One end of the connecting pipe is connected to the air outlet pipe between the valve and the solenoid valve of one blower assembly via a tee fitting.

[0004] The above-mentioned aeration equipment saves on blower maintenance and repair costs, but it is easy to generate heat when compressing air, making it difficult to recover the heat. The aeration position is relatively fixed, reducing aeration efficiency and making it difficult to evenly disperse the aeration. Utility Model Content

[0005] The purpose of this utility model is to provide a wastewater treatment aeration device with waste heat recovery function to solve the technical problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A wastewater treatment aeration device with waste heat recovery function includes a pipe body, a blower installed at the top of the pipe body, several aeration pipes installed at the bottom of the outer side of the pipe body, several aeration discs installed at the outer side of the aeration pipes, a heat exchange component installed at the top of the outer side of the pipe body, and a stirring component installed at the bottom of the outer side of the pipe body. The heat exchange component includes a protective sleeve fitted over the outer side of the pipe body. A spiral tube is wrapped around the outer side of the pipe body and inside the protective sleeve. A water inlet pipe is connected to the top of the spiral tube. A solenoid valve is installed at the connection between the water inlet pipe and the spiral tube. A water outlet pipe is connected to the bottom of the spiral tube. A temperature sensor is installed at the connection between the water outlet pipe and the spiral tube.

[0008] Preferably, the two ends of the protective sleeve are fixedly sealed to the outside of the tube body, and the inside of the protective sleeve is hollow.

[0009] Preferably, the inlet pipe, spiral pipe, and outlet pipe are interconnected internally.

[0010] Preferably, the inner ring of the spiral tube is wrapped around the outside of the tube body and fits against each other, and the probe of the temperature sensor passes through the inside of the outlet pipe.

[0011] Preferably, the stirring assembly includes a rotating rod, which is movably installed inside the tube body. A motor is installed at one end of the rotating rod. Two rotating shafts are movably installed through the top of the tube body. A set of stirring blades is fixedly installed at the top of the rotating shafts. Two fixing brackets are installed inside the tube body and sleeved on the outside of the two rotating rods. Conical teeth are fixedly installed on the outside of the rotating rods at both ends and at the bottom of the two rotating shafts.

[0012] Preferably, the fixing frame is fixedly installed inside the tube body, and the rotating rod passes through the inside of the fixing frame and is movably rotatable.

[0013] Preferably, the bevel teeth at the bottom of the rotating shaft are meshed with the bevel teeth on the outside of the rotating rod.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1) This wastewater treatment aeration equipment, by setting up heat exchange components, transports water to the spiral tube through the inlet pipe. The spiral tube and protective sleeve facilitate the recovery and utilization of heat in the tube, reducing heat loss from the spiral tube. Temperature sensors and solenoid valves can monitor the temperature of the water after heat exchange, making it easy to control the transport of water.

[0016] 2) This wastewater treatment aeration equipment, by setting up a stirring component, the rotating rod drives the rotating shaft to rotate through the bevel teeth, and the rotating shaft drives the stirring blades to rotate. Through the stirring blades, the aeration can be evenly dispersed, improving the oxygen transfer efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a wastewater treatment aeration device with waste heat recovery function according to an embodiment of the present invention.

[0018] Figure 2 This is a schematic diagram of the internal structure of the heat exchange component in an embodiment of this utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the water outlet pipe in an embodiment of this utility model;

[0020] Figure 4 This is a schematic diagram of the internal structure of the stirring assembly in an embodiment of this utility model;

[0021] Figure 5 As an embodiment of this utility model Figure 4 Enlarged view of point A.

[0022] In the diagram: 1. Pipe body; 2. Blower; 3. Aeration pipe; 4. Aeration disc; 5. Heat exchange assembly; 6. Agitator assembly; 7. Protective sleeve; 8. Spiral tube; 9. Inlet pipe; 10. Solenoid valve; 11. Outlet pipe; 12. Temperature sensor; 13. Rotating rod; 14. Motor; 15. Rotating shaft; 16. Agitator blade; 17. Fixing frame; 18. Conical teeth. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0024] Combination Figures 1-5 A wastewater treatment aeration device with waste heat recovery function includes a pipe body 1, a blower 2 installed at the top of the pipe body 1, a plurality of aeration pipes 3 installed at the bottom of the outside of the pipe body 1, a plurality of aeration discs 4 installed at the outside of the aeration pipes 3, a heat exchange component 5 installed at the top of the outside of the pipe body 1, and a stirring component 6 installed at the bottom of the outside of the pipe body 1.

[0025] See Figure 2 and Figure 3 Furthermore, the heat exchange assembly 5 includes a protective sleeve 7, which is fitted over the outside of the tube body 1. A spiral tube 8 is surrounded outside the tube body 1 and inside the protective sleeve 7. A water inlet pipe 9 is connected to the top of the spiral tube 8. A solenoid valve 10 is installed at the connection between the water inlet pipe 9 and the spiral tube 8. A water outlet pipe 11 is connected to the bottom of the spiral tube 8. A temperature sensor 12 is installed at the connection between the water outlet pipe 11 and the spiral tube 8. The temperature sensor 12 is of model CWDZ11A.

[0026] The two ends of the protective sleeve 7 are fixedly sealed to the outside of the tube body 1. The inside of the protective sleeve 7 is hollow. There is a gap between the inner wall of the protective sleeve 7 and the spiral tube 8. The heat loss of the spiral tube 8 is reduced by the protective sleeve 7.

[0027] The inlet pipe 9, the spiral pipe 8, and the outlet pipe 11 are interconnected. The outer end of the inlet pipe 9 is used to connect to an external circulation pump, which delivers water to the spiral pipe 8 through the inlet pipe 9.

[0028] The inner ring of the spiral tube 8 is wrapped around the outside of the tube body 1 and fits together. The probe of the temperature sensor 12 passes through the inside of the outlet pipe 11. The temperature sensor 12 is used to monitor the heat of the water in the spiral tube 8 and controls the opening and closing of the solenoid valve 10 through the PLC control system.

[0029] Specifically, heat is absorbed into the water body through the spiral tube 8, the temperature sensor 12 monitors the water temperature, and the opening and closing of the solenoid valve 10 is controlled by the PLC control system to facilitate sufficient heat exchange. Example

[0030] See Figure 4 and Figure 5 Furthermore, based on Embodiment 1, the stirring assembly 6 includes a rotating rod 13, which is movably installed inside the tube body 1. A motor 14 is installed at one end of the rotating rod 13. Two rotating shafts 15 are movably installed through the top of the tube body 1. A set of stirring blades 16 are fixedly installed at the top of the rotating shafts 15. Two fixing brackets 17 are installed inside the tube body 1 and sleeved on the outside of the two rotating rods 13. Conical teeth 18 are fixedly installed on both ends of the rotating rods 13 and at the bottom ends of the two rotating shafts 15.

[0031] The fixed frame 17 is fixedly installed inside the tube body 1. The rotating rod 13 passes through the inside of the fixed frame 17 and is movably rotatable. The rotating rod 13 is positioned in the center inside the tube body 1 by the fixed frame 17 and is rotated by the motor 14.

[0032] The bevel teeth 18 at the bottom of the rotating shaft 15 are meshed with the bevel teeth 18 on the outside of the rotating rod 13. The rotating rod 13 drives the rotating shaft 15 to rotate through the bevel teeth 18, which in turn drives the stirring blade 16 to rotate, so as to facilitate the full aeration of the sewage.

[0033] Specifically, the motor 14 drives the rotating rod 13 to rotate, and the rotating rod 13 drives the rotating shaft 15 to rotate through the bevel teeth 18, so that the stirring blades 16 rotate to evenly disperse the aeration and improve the oxygen transfer efficiency.

[0034] In actual operation, blower 2 compresses and delivers air into pipe 1. Due to the air compression and friction, the temperature rises and the heat is absorbed and recycled through spiral pipe 8.

[0035] During heat exchange, water is transported to the spiral tube 8 through the inlet pipe 9. The spiral tube 8 is located outside the tube body 1. Heat is absorbed into the water through the spiral tube 8. When the water is transported to the outlet pipe 11, the temperature of the water after heat exchange is monitored by the temperature sensor 12. When the water temperature reaches the preset value, the solenoid valve 10 is controlled by the PLC control system to open the inlet pipe 9. When the water temperature does not reach the preset value, the solenoid valve 10 is controlled to close the inlet pipe 9, so that the water in the spiral tube 8 continues to exchange heat.

[0036] During stirring, the wastewater in the aeration tank is aerated by the aeration disc 4. The motor 14 drives the rotating rod 13 to rotate, and the rotating rod 13 drives the two corresponding rotating shafts 15 to rotate through the bevel teeth 18, which in turn drives the two sets of stirring blades 16 to rotate. The stirring blades 16 evenly disperse the aeration and improve the oxygen transfer efficiency.

[0037] By setting up heat exchange component 5, water is transported to spiral tube 8 through inlet pipe 9. Spiral tube 8 and protective sleeve 7 facilitate the recovery and utilization of heat from tube 1 and reduce heat loss from spiral tube 8. Temperature sensor 12 and solenoid valve 10 can monitor the temperature of water after heat exchange, facilitating the control of water transport. By setting up stirring component 6, rotating rod 13 drives rotating shaft 15 to rotate through bevel teeth 18. Rotating shaft 15 drives stirring blade 16 to rotate. Stirring blade 16 can evenly disperse aeration and improve oxygen transfer efficiency.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wastewater treatment aeration device with waste heat recovery function, comprising a pipe body (1), a blower (2) installed at the top of the pipe body (1), a plurality of aeration pipes (3) installed at the bottom of the outer side of the pipe body (1), and a plurality of aeration discs (4) installed on the outer side of the aeration pipes (3), characterized in that: A heat exchange component (5) is installed on the outside of the tube body (1) near the top, and a stirring component (6) is installed on the outside of the tube body (1) near the bottom. The heat exchange assembly (5) includes a protective sleeve (7), which is fitted over the outside of the tube body (1). A spiral tube (8) surrounds the outside of the tube body (1) and inside the protective sleeve (7). A water inlet pipe (9) is connected to the top of the spiral tube (8). A solenoid valve (10) is installed at the connection between the water inlet pipe (9) and the spiral tube (8). A water outlet pipe (11) is connected to the bottom of the spiral tube (8). A temperature sensor (12) is installed at the connection between the water outlet pipe (11) and the spiral tube (8).

2. The wastewater treatment aeration device with waste heat recovery function according to claim 1, characterized in that: The two ends of the protective sleeve (7) are fixedly sealed to the outside of the tube body (1), and the inside of the protective sleeve (7) is hollow.

3. The wastewater treatment aeration device with waste heat recovery function according to claim 1, characterized in that: The inlet pipe (9), spiral pipe (8) and outlet pipe (11) are interconnected.

4. A wastewater treatment aeration device with waste heat recovery function according to claim 1, characterized in that: The inner ring of the spiral tube (8) is wrapped around the outside of the tube body (1) and fits together, while the probe of the temperature sensor (12) passes through the inside of the outlet pipe (11).

5. A wastewater treatment aeration device with waste heat recovery function according to claim 1, characterized in that: The stirring assembly (6) includes a rotating rod (13), which is movably installed inside the tube body (1). A motor (14) is installed at one end of the rotating rod (13). Two rotating shafts (15) are movably installed through the top of the tube body (1). A set of stirring blades (16) are fixedly installed at the top of the rotating shafts (15). Two fixing brackets (17) are installed inside the tube body (1) and sleeved on the outside of the two rotating rods (13). Conical teeth (18) are fixedly installed on both ends of the rotating rods (13) and at the bottom ends of the two rotating shafts (15).

6. A wastewater treatment aeration device with waste heat recovery function according to claim 5, characterized in that: The fixing frame (17) is fixedly installed inside the tube body (1), and the rotating rod (13) passes through the inside of the fixing frame (17) and is movably rotatable.

7. A wastewater treatment aeration device with waste heat recovery function according to claim 5, characterized in that: The bevel teeth (18) at the bottom of the rotating shaft (15) are meshed with the bevel teeth (18) on the outside of the rotating rod (13).

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