Pre-cooling residual gas energy recovery device

By designing a pre-cooling waste gas energy recovery device, hot air is introduced by a fan and condensed by water. Combined with a motor-driven rotating rod and agitator, the problem of wasted energy from hot air discharge from water-cooled towers is solved, and effective heat energy recovery and heating utilization are achieved.

CN223663797UActive Publication Date: 2025-12-12WUXI WENRUI ENERGY TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202422760350.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-12
Publication Date
2025-12-12
Estimated Expiration
2034-11-12

AI Technical Summary

Technical Problem

In existing technologies, hot air is directly discharged after heat exchange in water-cooled towers, causing the temperature of the air above to rise and resulting in energy waste.

Method used

Design a pre-cooled waste gas energy recovery device, which uses a fan to introduce hot gas into the recovery box, condenses the hot gas with water and recovers the heat energy, and uses a motor to drive a rotating rod and a stirring plate to enhance the heat exchange efficiency.

Benefits of technology

It achieves effective recovery of heat energy, which is condensed into water for heating, thus improving energy utilization efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a precooling residual gas energy recovery device which comprises a water cooling tower and a recovery box fixedly connected to one side of the water cooling tower through a fixing block, a draught fan is fixedly installed at the top of the water cooling tower through an opening, and a vent hood is fixedly connected to the top of the water cooling tower and located outside the draught fan. The top of the vent hood is communicated with a vent pipe. The utility model relates to the technical field of residual air energy recovery. According to the pre-cooling residual gas energy recovery device, hot gas exhausted by a fan on a water cooling tower enters a vent hood and enters a recovery box through a vent pipe, water is continuously added into the recovery box through a water inlet pipe, the hot gas enters a curved pipe from the vent pipe, and the hot gas in the curved pipe is condensed through the water in the recovery box; and hot air in the curved pipe is condensed into water to be discharged and collected, water in the recycling box is subjected to heat exchange heating, the heated water is discharged from the water outlet pipe for heating, and therefore hot air energy can be well recycled.
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Description

Technical Field

[0001] This utility model relates to the field of waste gas energy recovery technology, specifically a pre-cooled waste gas energy recovery device. Background Technology

[0002] A water-cooled tower is a hybrid heat exchanger that cools the air by passing cooling water, which has increased in temperature, through the cooling tower to lower the water temperature and supply it for circulation in the air-cooled tower. The higher-temperature cooling water from the circulating water network is sprayed downwards from the top of the water-cooled tower, where the water exchanges heat and mass with the air flowing through it.

[0003] In the current production process, after the water-cooled tower heats up, the heat-exchanged air is discharged upwards. However, the hot air is discharged directly from the top of the water-cooled tower, which causes the air temperature above to rise and results in energy waste. Therefore, a pre-cooled waste gas energy recovery device is proposed. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides a pre-cooled waste gas energy recovery device, which solves the problem that hot air is directly discharged from the top of the water cooling tower, resulting in an increase in the air temperature above and causing energy waste.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pre-cooled waste gas energy recovery device, comprising a water cooling tower and a recovery box fixedly connected to one side of the water cooling tower via a fixing block. A fan is fixedly installed on the top of the water cooling tower through an opening. A vent hood is fixedly connected to the top of the water cooling tower and outside the fan. A vent pipe is connected to the top of the vent hood. An inlet pipe and an outlet pipe are respectively connected to the top and bottom of the recovery box. One end of the vent pipe is connected to one end of the inlet pipe, and a curved pipe is connected between the other end of the inlet pipe and one end of the outlet pipe. A collection box is fixedly connected to the lower side of one side of the water cooling tower via a connecting block.

[0006] Preferably, an inlet pipe and an outlet pipe are connected to the top and bottom of one side of the recycling bin, respectively, and a drain pipe is connected to the bottom of one side of the collection bin.

[0007] Preferably, the front and rear parts of the bottom of the recycling bin are rotatably connected to a rotating rod via bearings. One end of the rotating rod passes through the recycling bin and extends to the outside of the recycling bin. A fixed frame is fixedly connected to the rear of the top of the recycling bin. A motor is fixedly connected to the bottom of the fixed frame. The output shaft of the motor is fixedly connected to one end of the rear rotating rod via a coupling.

[0008] Preferably, a drive wheel is fixedly connected to the surface of the rotating rod and located outside the recycling bin, and a drive belt is connected between the surfaces of the two drive wheels.

[0009] Preferably, a plurality of agitator sleeves are fixedly connected to the surface of the rotating rod and inside the recycling bin.

[0010] Preferably, agitator plates are fixedly connected to both sides of the agitator sleeve surface.

[0011] Beneficial effects

[0012] This invention provides a pre-cooled waste gas energy recovery device. Compared with existing technologies, it has the following advantages:

[0013] (1) In this utility model, the hot air discharged from the fan on the water cooling tower enters the ventilation hood, and the hot air enters the recovery box through the ventilation pipe. Water is continuously added to the recovery box through the water inlet pipe. The hot air will enter the curved pipe through the ventilation pipe. The hot air in the curved pipe is condensed by the water in the recovery box. The hot air in the curved pipe is condensed into water and discharged for collection. The water in the recovery box is heated by heat exchange. The heated water is discharged from the water outlet pipe for heating. Thus, the hot air energy can be recovered very well.

[0014] (2) The utility model controls the motor to drive the rotating rod to rotate, and the rotating rod will drive another rotating rod to rotate through the transmission wheel and transmission belt. The two rotating rods drive multiple stirring plates to rotate through the stirring sleeve, so that the multiple stirring plates stir the water in the recycling tank, and the water in the recycling tank is evenly contacted and heat exchanged with the curved tube. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the external structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the water cooling tower and fan of this utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the recycling bin, air inlet pipe, air outlet pipe, curved pipe, water inlet pipe, water outlet pipe and motor of this utility model;

[0018] Figure 4 This is a side view of the internal structure of the recycling bin, rotating rod, fixed frame, motor, transmission wheel, transmission belt, stirring sleeve and stirring plate of this utility model.

[0019] In the diagram: 1. Water cooling tower; 2. Recovery box; 3. Fan; 4. Ventilation hood; 5. Ventilation pipe; 6. Inlet pipe; 7. Outlet pipe; 8. Curved pipe; 9. Collection box; 10. Water inlet pipe; 11. Water outlet pipe; 12. Drain pipe; 13. Rotating rod; 14. Fixing frame; 15. Motor; 16. Transmission wheel; 17. Transmission belt; 18. Agitator sleeve; 19. Agitator plate. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] Please see Figure 1-4 This utility model provides a technical solution: a pre-cooled waste gas energy recovery device, including a water cooling tower 1 and a recovery box 2 fixedly connected to one side of the water cooling tower 1 by a fixing block. A fan 3 is fixedly installed on the top of the water cooling tower 1 through an opening. The fan 3 is electrically connected to an external power source and controlled by a control switch. A vent hood 4 is fixedly connected to the top of the water cooling tower 1 and outside the fan 3. A vent pipe 5 is connected to the top of the vent hood 4. An inlet pipe 6 and an outlet pipe 7 are connected to the top and bottom of the recovery box 2, respectively. One end of the vent pipe 5 is connected to one end of the inlet pipe 6. A curved pipe 8 is connected between the other end of the inlet pipe 6 and one end of the outlet pipe 7. A collection box 9 is fixedly connected to the lower side of one side of the water cooling tower 1 by a connecting block.

[0022] Furthermore, to facilitate the addition and removal of water from the recycling bin 2, an inlet pipe 10 and an outlet pipe 11 are connected to the top and bottom of one side of the recycling bin 2, respectively, and a drain pipe 12 is connected to the bottom of one side of the collection bin 9.

[0023] It should be noted that the inlet pipe 10 is connected to an external water storage tank to continuously add water to the recovery tank 2. The water exchanged in the recovery tank 2 is discharged from the outlet pipe 11, which is connected to an external heating system.

[0024] Furthermore, to ensure uniform heat exchange between the water in the recycling tank 2 and the curved tube 8, rotating rods 13 are rotatably connected to the front and rear parts of the bottom of the inner cavity of the recycling tank 2 via bearings. One end of the rotating rod 13 passes through the recycling tank 2 and extends to the outside of the recycling tank 2. A fixed frame 14 is fixedly connected to the rear of the top of the recycling tank 2. A motor 15 is fixedly connected to the bottom of the fixed frame 14. The motor 15 is a servo motor, electrically connected to an external power source, and controlled by a control switch. The output shaft of the motor 15 is fixedly connected to one end of the rear rotating rod 13 via a coupling. A transmission wheel 16 is fixedly connected to the surface of the rotating rod 13 and located outside the recycling tank 2. A transmission belt 17 is connected between the surfaces of the two transmission wheels 16. Several agitating sleeves 18 are fixedly connected to the surface of the rotating rod 13 and located inside the recycling tank 2. Agitating plates 19 are fixedly connected to both sides of the surface of the agitating sleeve 18.

[0025] In use, heat exchange is achieved through the water cooling tower 1, and the fan 3 is controlled to rotate and blow air upwards, allowing the high-temperature residual air to enter the ventilation hood 4. The hot air will enter the curved pipe 8 in the recovery box 2 through the ventilation pipe 5. The hot air bends through the curved pipe 8 and passes through the recovery box 2. At the same time, water is continuously added to the recovery box 2 through the water inlet pipe 10. The water in the recovery box 2 will condense the hot air in the curved pipe 8, condensing it into water. The condensate will fall into the collection box 9 through the air outlet pipe 7 for collection. The hot water from the heat exchange in the recovery box 2 will be discharged from the water outlet pipe 11 for heating.

[0026] Simultaneously, the control motor 15 drives the rear rotating rod 13 to rotate. The rotating rod 13 will drive another rotating rod 13 to rotate through the transmission wheel 16 and the transmission belt 17, so that the two rotating rods 13 rotate at the same time. The two rotating rods 13 will drive multiple agitator plates 19 to rotate through multiple agitator sleeves 18, so that the multiple agitator plates 19 agitate the water in the recovery tank 2, and make the water in the recovery tank 2 evenly contact the curved tube 8 for heat exchange and condensation.

Claims

1. A pre-cooled waste gas energy recovery device, comprising a water cooling tower (1) and a recovery box (2) fixedly connected to one side of the water cooling tower (1) by a fixing block, characterized in that: A fan (3) is fixedly installed on the top of the water cooling tower (1) through an opening. A ventilator (4) is fixedly connected to the top of the water cooling tower (1) and outside the fan (3). A ventilator pipe (5) is connected to the top of the ventilator (4). An air inlet pipe (6) and an air outlet pipe (7) are connected to the top and bottom of the recovery box (2), respectively. One end of the ventilator pipe (5) is connected to one end of the air inlet pipe (6). A curved pipe (8) is connected between the other end of the air inlet pipe (6) and one end of the air outlet pipe (7). A collection box (9) is fixedly connected to the bottom of one side of the water cooling tower (1) through a connecting block.

2. The pre-cooled waste gas energy recovery device according to claim 1, characterized in that: The recycling bin (2) has an inlet pipe (10) connected to the top and an outlet pipe (11) on one side, and a drain pipe (12) connected to the bottom of one side of the collection bin (9).

3. The pre-cooled waste gas energy recovery device according to claim 1, characterized in that: The front and rear parts of the bottom of the inner cavity of the recycling box (2) are rotatably connected by bearings to a rotating rod (13). One end of the rotating rod (13) passes through the recycling box (2) and extends to the outside of the recycling box (2). A fixed frame (14) is fixedly connected to the rear of the top of the recycling box (2). A motor (15) is fixedly connected to the bottom of the fixed frame (14). The output shaft of the motor (15) is fixedly connected to one end of the rear rotating rod (13) through a coupling.

4. The pre-cooled waste gas energy recovery device according to claim 3, characterized in that: A drive wheel (16) is fixedly connected to the surface of the rotating rod (13) and to the outside of the recycling box (2), and a drive belt (17) is connected between the surfaces of the two drive wheels (16).

5. The pre-cooled waste gas energy recovery device according to claim 3, characterized in that: Several agitator sleeves (18) are fixedly connected to the surface of the rotating rod (13) and inside the recycling box (2).

6. The pre-cooled waste gas energy recovery device according to claim 5, characterized in that: Agitator plates (19) are fixedly connected to both sides of the agitator sleeve (18).