Waste heat power generation system with waste gas treatment function

Abstract

The utility model relates to the technical field of waste gas power generation treatment, and discloses a waste heat power generation system with a waste gas treatment function, which comprises a cooling box and a water injection pipe arranged on the side wall of the top of the cooling box, a gas injection pipe penetrates through and is fixedly connected with the side wall of the bottom of the cooling box, and one end of the gas injection pipe in the cooling box is bent downwards. And the inner wall of the end, close to the cooling box, of the water injection pipe is connected with an air blocking assembly. According to the waste heat power generation system with the waste gas treatment function, the gas injection pipe is directly led into the cooling box, so that waste gas is prevented from escaping into air in the process of injecting the waste gas into the cooling box, meanwhile, a gas blocking assembly is arranged in the water injection pipe, and the waste gas can be prevented from overflowing out of the cooling box through the water injection pipe after rising from water; and it is ensured that waste gas subjected to water cooling treatment in the cooling box can smoothly flow into next treatment equipment from the exhaust port for waste gas power generation, and the waste gas treatment stability of the cooling box is improved.

Description

Technical Field

[0001] This utility model relates to the field of waste gas power generation technology, specifically a waste heat power generation system with waste gas treatment function. Background Technology

[0002] Currently, waste gas refers to toxic and harmful gases emitted by humans during production and daily life, especially from chemical plants, steel mills, pharmaceutical factories, coking plants, and oil refineries. The waste gas emitted has a strong odor, seriously pollutes the environment, and affects human health. Referring to the design of conventional waste gas treatment devices, the overall treatment methods are relatively simple. Most of them involve passing high-temperature waste gas into a water tank for preliminary treatment. When the water comes into contact with the high-temperature waste gas, it gradually heats up and evaporates. The evaporated vapor carries some harmful molecules from the waste gas dissolved in the water and diffuses into the air, causing air pollution and wasting water resources. This method has significant limitations in areas where water resources are scarce.

[0003] For example, patent CN216062631U discloses a waste gas treatment and waste heat power generation system, including a cooling component, a reheating component, and a filter component. The cooling component includes a cooling box, a receiving pipe, a conductive pipe, and a driving component. One end of the receiving pipe is rotatably connected to the cooling box. The reheating component includes a reheating box and electric heating wires. The reheating box is connected to the cooling box, and the electric heating wires are spaced apart within the reheating box. An adsorption pack is disposed within the filter box, which is connected to the reheating box. This system filters and purifies waste gas through multiple means, improving waste gas treatment efficiency. Simultaneously, it avoids reducing the lifespan of waste gas treatment equipment due to waste gas temperature, and the overall design reduces the limitations of waste gas treatment equipment.

[0004] However, the waste heat power generation system in the above technology still has the following problems:

[0005] Although various methods are used to filter and treat exhaust gases, improving the efficiency of exhaust gas treatment, when the exhaust gases are passed into water for cooling, the exhaust gases need to pass through high pressure to enter the water through the exhaust port at the bottom of the pipe for cooling. The high-pressure, high-temperature exhaust gases are very easy to escape from the rotating part at the top of the pipe to the outside, causing environmental pollution. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a waste heat power generation system with waste gas treatment function, such as ensuring that high-temperature waste gas will not escape during the process of being introduced into water, thus avoiding environmental pollution.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a waste heat power generation system with exhaust gas treatment function, including a cooling box and a water injection pipe installed on the top side wall of the cooling box. An exhaust port is provided through the top side wall of the cooling box, and an air injection pipe is provided through and fixedly connected to the bottom side wall of the cooling box. One end of the air injection pipe inside the cooling box is bent downward and connected to an anti-backflow component. The end of the anti-backflow component away from the cooling box is connected to a rotating component, and the end of the rotating component away from the anti-backflow component is connected to an air outlet component. The air outlet component is close to the bottom of the cooling box, and an air-blocking component is connected to the inner wall of the end of the water injection pipe near the cooling box.

[0008] Furthermore, the anti-backflow assembly includes a horn tube and an anti-backflow ball. The smaller end of the horn tube is fixedly connected to and communicates with the downward-bent end of the gas injection pipe located inside the cooling box. The larger end of the horn tube is connected to the rotating assembly. A positioning rod is fixedly connected inside the horn tube near the gas injection pipe. A return spring is fixedly connected at the middle position on the side of the positioning rod away from the gas injection pipe. The end of the return spring away from the positioning rod is fixedly connected to the anti-backflow ball.

[0009] Furthermore, the rotating assembly includes an I-shaped fixed tube and a rotating ring. The I-shaped fixed tube is fixedly connected to and communicates with the larger end of the horn tube. The rotating ring is rotatably connected to the groove in the middle of the I-shaped fixed tube. An air guide tube is fixedly connected to the outer wall of the rotating ring. The air guide tube communicates with the I-shaped fixed tube. The end of the air guide tube away from the rotating ring is designed to be sealed.

[0010] Furthermore, a bearing is fixedly connected to the bottom of the air duct, and the other end of the bearing is fixedly connected to the bottom of the cooling box. The bearing is located in the middle of the bottom of the cooling box.

[0011] Furthermore, the air outlet assembly includes several air diffusers, which are evenly distributed on the outer wall of the air guide tube. The air diffusers are all fixedly connected to and communicate with the air guide tube, and several air diffuser holes are opened through the air diffusers on one side facing the same rotation direction of the air guide tube.

[0012] Furthermore, the air-blocking assembly includes a fixed rod, a retractable spring, a connecting tube, and a blocking balloon. The fixed rod is fixedly connected to the inner wall of the water injection pipe near the cooling box. The connecting tube is fixedly connected to the side of the fixed rod near the cooling box. The outer wall of the connecting tube is fixedly connected to the inner wall of the water injection pipe, and the connecting tube communicates with the water injection pipe. One end of the retractable spring is fixedly connected to the middle position of the fixed rod near the connecting tube. The other end of the retractable spring is fixedly connected to the blocking balloon. The diameter of the blocking balloon is smaller than the inner wall diameter of the water injection pipe but larger than the inner wall diameter of the connecting tube.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] This waste heat power generation system with waste gas treatment function avoids the waste gas from escaping into the air during the process of injecting waste gas into the cooling box by directly connecting the gas injection pipe into the cooling box. At the same time, the gas blocking component is installed in the water injection pipe to prevent the waste gas from rising from the water and overflowing out of the cooling box through the water injection pipe. This ensures that the waste gas treated by water cooling inside the cooling box can flow smoothly from the exhaust port into the next treatment equipment for waste gas power generation, thereby improving the stability of waste gas treatment in the cooling box. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall appearance and connection structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the connection structure of the cooling box of this utility model;

[0017] Figure 3 This is a cross-sectional schematic diagram of the connection structure of the gas injection pipe located inside the cooling box of this utility model;

[0018] Figure 4 Based on Figure 3 A partial cross-sectional view of the connection structure;

[0019] Figure 5 This is a cross-sectional schematic diagram of the water injection pipe connection structure of this utility model;

[0020] Figure 6 Based on Figure 5 A cross-sectional view of the connection structure of the fitting pipe section.

[0021] In the diagram: 1. Cooling box; 2. Water injection pipe; 3. Air injection pipe; 4. Horn pipe; 5. Anti-backflow ball; 6. Positioning rod; 7. Return spring; 8. I-shaped fixing tube; 9. Rotating ring; 10. Air guide pipe; 11. Air dissipation pipe; 12. Fixing rod; 13. Contraction spring; 14. Matching pipe; 15. Blocking balloon; 16. Bearing; 101. Exhaust port; 102. Air dissipation hole. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figure 1 - Figure 6A waste heat power generation system with exhaust gas treatment function includes a cooling box 1 and a water injection pipe 2 installed on the top side wall of the cooling box 1. An exhaust port 101 is provided through the top side wall of the cooling box 1. An air injection pipe 3 is provided through and fixedly connected to the bottom side wall of the cooling box 1. One end of the air injection pipe 3 inside the cooling box 1 is bent downward and connected to an anti-backflow component. The end of the anti-backflow component away from the cooling box 1 is connected to a rotating component. The end of the rotating component away from the anti-backflow component is connected to an air outlet component. The air outlet component is close to the bottom of the cooling box 1. An air-blocking component is connected to the inner wall of the water injection pipe 2 near the end of the cooling box 1.

[0024] like Figure 1 - Figure 6 As shown, the waste heat power generation system with waste gas treatment function in this utility model is structurally similar to existing waste heat power generation systems with waste gas treatment function, such as the waste gas treatment and waste heat power generation system disclosed in patent publication number CN216062631U. The main improvement of this utility model lies in improving the stability of the waste gas cooling process and reducing or even eliminating the escape of waste gas from the cooling box 1 into the air. Figures 1 to 6 As shown, in the waste heat power generation system with exhaust gas treatment function of this utility model, when in use, an appropriate amount of cooling water is first injected into the cooling box 1 through the water injection pipe 2. It is necessary to ensure that the water overflows the bottom air injection pipe 3 and is not higher than the height of the exhaust port 101. Then, the high-temperature exhaust gas is connected to the air injection pipe 3 and injected into the cooling water in the cooling box 1 through the air injection pipe 3. During this process, the anti-backflow component at the end of the air injection pipe 3 can prevent the cooling water inside the cooling box 1 from flowing back through the air injection pipe 3 while the exhaust gas is injected into the cooling box 1. After the exhaust gas comes into contact with the cooling water, it will gradually rise above the water surface in the cooling box 1. At this time, the air blocking component at the end of the water injection pipe 2 can prevent the rising exhaust gas from spreading from the water injection pipe 2 into the external environment, avoiding environmental pollution, and ensuring that the exhaust gas cooled by the cooling box 1 can completely enter the next stage of waste heat power generation through the exhaust port 101.

[0025] like Figure 2 and Figure 3As shown, the anti-backflow assembly includes a horn tube 4 and an anti-backflow ball 5. The smaller end of the horn tube 4 is fixedly connected to and communicates with the downward-bent end of the air injection pipe 3 located inside the cooling box 1. The larger end of the horn tube 4 is connected to a rotating assembly. A positioning rod 6 is fixedly connected inside the horn tube 4 near the air injection pipe 3. A return spring 7 is fixedly connected to the middle position of the positioning rod 6 on the side away from the air injection pipe 3. The end of the return spring 7 away from the positioning rod 6 is fixedly connected to the anti-backflow ball 5. When the exhaust gas in the air injection pipe 3 reaches a certain pressure, it will impact and move the anti-backflow ball 5 inside the horn tube 4 downward, so that the exhaust gas flows downward through the gap between the anti-backflow ball 5 and the horn tube 4. When the exhaust gas injection operation stops, the pressure decreases, and the return spring 7 pulls the anti-backflow ball 5 towards the positioning rod 6, thereby pulling the anti-backflow ball 5 and pressing it against the inner wall of the horn tube 4, thus sealing and isolating the upper and lower ends of the horn tube 4, thereby preventing the cooling water inside the cooling box 1 from flowing back into the air injection pipe 3.

[0026] like Figure 2 - Figure 4 As shown, the rotating assembly includes an I-shaped fixed tube 8 and a rotating ring 9. The I-shaped fixed tube 8 is fixedly connected to and communicates with the larger end of the horn tube 4. The rotating ring 9 is rotatably connected to the groove in the middle of the I-shaped fixed tube 8. A gas guide tube 10 is fixedly connected to the outer wall of the rotating ring 9 and communicates with the I-shaped fixed tube 8. The end of the gas guide tube 10 away from the rotating ring 9 is sealed. The gas guide tube 10 rotates within the groove of the I-shaped fixed tube 8 via the rotating ring 9, thereby evenly injecting the exhaust gas injected by the gas injection tube 3 into the cooling water in the cooling box 1 through the bottom gas outlet assembly in a rotating manner, thus improving the contact between the high-temperature exhaust gas and the cooling water.

[0027] like Figure 2 and Figure 3 As shown, a bearing 16 is fixedly connected to the bottom of the air guide pipe 10, and the other end of the bearing 16 is fixedly connected to the bottom of the cooling box 1. The bearing 16 is located in the middle of the bottom of the cooling box 1. The air guide pipe 10 is connected to the bottom of the cooling box 1 through the bearing 16, which provides support between the air guide pipe 10 and the cooling box 1, and makes the rotation of the air guide pipe 10 smoother.

[0028] like Figure 1 - Figure 6As shown, the exhaust assembly includes several diffuser pipes 11, which are evenly distributed on the outer wall of the air guide pipe 10. Each diffuser pipe 11 is fixedly connected to and communicates with the air guide pipe 10. Several diffuser holes 102 are provided on the side of each diffuser pipe 11 facing the same rotation direction as the air guide pipe 10. When the high-temperature exhaust gas in the injection pipe 3 is dispersed into the diffuser pipes 11 through the air guide pipe 10, it emerges from the multiple diffuser holes 102 on the side of the diffuser pipe 11. These diffuser holes 102, in conjunction with the diffuser holes 102 on the side of the diffuser pipes 11 in the same direction, drive the diffuser pipes 11 and the air guide pipe 10 to rotate, thus providing rotational power for the diffusion of the exhaust gas within the cooling chamber 1, allowing for more thorough contact between the exhaust gas and the cooling water inside the cooling chamber 1.

[0029] like Figure 1 - Figure 6 As shown, the air-blocking assembly includes a fixing rod 12, a contraction spring 13, a connecting tube 14, and an air-blocking balloon 15. The fixing rod 12 is fixedly connected to the inner wall of the water injection pipe 2 near the cooling box 1. The connecting tube 14 is fixedly connected to the side of the fixing rod 12 near the cooling box 1. The outer wall of the connecting tube 14 is fixedly connected to the inner wall of the water injection pipe 2, and the connecting tube 14 is connected to the water injection pipe 2. One end of the contraction spring 13 is fixedly connected to the middle position of the side of the fixing rod 12 near the connecting tube 14. The other end of the contraction spring 13 is fixedly connected to the air-blocking balloon 15. The diameter of the air-blocking balloon 15 is smaller than the inner wall diameter of the water injection pipe 2 and larger than the inner wall diameter of the connecting tube 14. During water injection, the water flow impacts the plugging balloon 15 through the connecting pipe 14, causing the plugging balloon 15 to move away from the connecting pipe 14. This allows the water to flow into the cooling box 1 through the gap between the plugging balloon 15 and the water injection pipe 2. After water injection is completed, the contraction spring 13 on the fixing rod 12 pulls the plugging balloon 15 towards the connecting pipe 14, eventually causing the plugging balloon 15 to seal the end of the connecting pipe 14. When the exhaust gas in the cooling box 1 rises from the cooling water, the exhaust gas on the surface of the water will be blocked by the plugging balloon 15, thereby preventing the exhaust gas from spreading out from the connecting pipe 14 and the water injection pipe 2, and improving the sealing effect inside the cooling box 1.

[0030] 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 these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A waste heat power generation system with exhaust gas treatment function, comprising a cooling box (1) and a water injection pipe (2) installed on the top side wall of the cooling box (1), wherein an exhaust port (101) is provided through the top side wall of the cooling box (1), characterized in that: The bottom side wall of the cooling box (1) is connected to an air injection pipe (3). One end of the air injection pipe (3) inside the cooling box (1) is bent downward and connected to an anti-backflow component. The end of the anti-backflow component away from the cooling box (1) is connected to a rotating component. The end of the rotating component away from the anti-backflow component is connected to an air outlet component. The air outlet component is close to the bottom of the cooling box (1). The inner wall of the water injection pipe (2) near the end of the cooling box (1) is connected to an air-blocking component.

2. The waste heat power generation system with exhaust gas treatment function according to claim 1, characterized in that: The anti-backflow assembly includes a horn tube (4) and an anti-backflow ball (5). The smaller end of the horn tube (4) is fixedly connected to and communicates with the downward-bent end of the gas injection pipe (3) located inside the cooling box (1). The larger end of the horn tube (4) is connected to the rotating assembly. A positioning rod (6) is fixedly connected inside the horn tube (4) near the gas injection pipe (3). A return spring (7) is fixedly connected at the middle position on the side of the positioning rod (6) away from the gas injection pipe (3). The end of the return spring (7) away from the positioning rod (6) is fixedly connected to the anti-backflow ball (5).

3. A waste heat power generation system with waste gas treatment function according to claim 2, characterized in that: The rotating assembly includes an I-shaped fixed tube (8) and a rotating ring (9). The I-shaped fixed tube (8) is fixedly connected to and communicates with the larger end of the horn tube (4). The rotating ring (9) is rotatably connected to the groove in the middle of the I-shaped fixed tube (8). A gas guide tube (10) is fixedly connected to the outer wall of the rotating ring (9). The gas guide tube (10) communicates with the I-shaped fixed tube (8). The end of the gas guide tube (10) away from the rotating ring (9) is designed to be sealed.

4. A waste heat power generation system with waste gas treatment function according to claim 3, characterized in that: The bottom of the air duct (10) is fixedly connected to a bearing (16), and the other end of the bearing (16) is fixedly connected to the bottom of the cooling box (1). The bearing (16) is located in the middle of the bottom of the cooling box (1).

5. A waste heat power generation system with exhaust gas treatment function according to claim 3 or 4, characterized in that: The air outlet assembly includes several air diffuser pipes (11), which are evenly distributed on the outer wall of the air guide pipe (10). The air diffuser pipes (11) are all fixedly connected and communicate with the air guide pipe (10). Several air diffuser holes (102) are opened through the air diffuser pipes (11) on the side facing the same rotation direction of the air guide pipe (10).

6. A waste heat power generation system with exhaust gas treatment function according to claim 1, 2, 3 or 4, characterized in that: The air-blocking assembly includes a fixed rod (12), a contraction spring (13), a connecting tube (14), and a blocking balloon (15). The fixed rod (12) is fixedly connected to the inner wall of the water injection pipe (2) near the cooling box (1). The connecting tube (14) is fixedly connected to the side of the fixed rod (12) near the cooling box (1). The outer wall of the connecting tube (14) is fixedly connected to the inner wall of the water injection pipe (2), and the connecting tube (14) is connected to the water injection pipe (2). One end of the contraction spring (13) is fixedly connected to the middle position of the side of the fixed rod (12) near the connecting tube (14). The other end of the contraction spring (13) is fixedly connected to the blocking balloon (15). The diameter of the blocking balloon (15) is smaller than the inner wall diameter of the water injection pipe (2) and larger than the inner wall diameter of the connecting tube (14).

7. A waste heat power generation system with exhaust gas treatment function according to claim 5, characterized in that: The air-blocking assembly includes a fixed rod (12), a contraction spring (13), a connecting tube (14), and a blocking balloon (15). The fixed rod (12) is fixedly connected to the inner wall of the water injection pipe (2) near the cooling box (1). The connecting tube (14) is fixedly connected to the side of the fixed rod (12) near the cooling box (1). The outer wall of the connecting tube (14) is fixedly connected to the inner wall of the water injection pipe (2), and the connecting tube (14) is connected to the water injection pipe (2). One end of the contraction spring (13) is fixedly connected to the middle position of the side of the fixed rod (12) near the connecting tube (14). The other end of the contraction spring (13) is fixedly connected to the blocking balloon (15). The diameter of the blocking balloon (15) is smaller than the inner wall diameter of the water injection pipe (2) and larger than the inner wall diameter of the connecting tube (14).

Images