A heat recovery assembly for exhaust gas treatment

Abstract

The utility model relates to a kind of heat recovery assemblies for waste gas treatment, including device box, first swivel joint is installed in device box side, one end of first swivel joint is rotatably connected with the one end of gas pipeline, the other end of gas pipeline passes through from inside device box, and rotatably connected with second swivel joint installed in the other side of device box, the one end of gas pipeline in device box is provided with transmission assembly, the utility model gas pipeline is matched with transmission assembly through first swivel joint, can rotate in device box and drive multiple connecting pipe agitating tank water, while waste gas flows through gas pipeline and the first, second connecting pipe connected, each pipe agitates water together, effectively improve the heat exchange uniformity, and the integration of conveying mechanism and stirring mechanism is realized, improve the device performance and integration.

Description

Technical Field

[0001] This utility model relates to the field of heat energy recovery components, specifically a heat energy recovery component for waste gas treatment. Background Technology

[0002] Industrial waste gas refers to the general term for various pollutant-containing gases emitted into the air during fuel combustion and production processes within a factory premises. These waste gases include: carbon dioxide, carbon disulfide, hydrogen sulfide, fluorides, nitrogen oxides, chlorine, hydrogen chloride, carbon monoxide, sulfuric acid (mist), lead, mercury, beryllium compounds, soot, and industrial dust. When released into the atmosphere, they pollute the air. These toxic gases are harmful to human health and are typically treated using high-temperature catalytic methods. The treated waste gas contains a large amount of heat; direct discharge would be a waste of energy.

[0003] According to publicly available patent CN212962906U, a heat recovery device for waste gas treatment includes a water tank and a pipe. The pipe passes through the water tank and its connection to the water tank is sealed. The middle section of the pipe is located inside the water tank and has a main pipe and several branch pipes. The branch pipes are arranged in a ring around the main pipe, and a heat exchange chamber is formed between the branch pipes and the main pipe. Several annular heat exchange grooves are evenly formed on the surface of the branch pipes, and spiral grooves are formed on the surface of the main pipe. This utility model designs the middle section of the pipe as a structure of multiple branch pipes and one main pipe, increasing the contact surface with the liquid, improving the degree of heating of the liquid, and increasing the efficiency of heat exchange. A stirring rod is installed in the water tank to drive the internal liquid flow, which improves the uniformity of heating. The bristles at the bottom of the stirring rod can also clean the surface of the filter screen to prevent clogging.

[0004] In traditional waste gas treatment heat recovery components, a stirring rod is installed inside the water tank to drive the internal liquid flow, which improves the uniformity of heating. However, with the stirring rod, the position of the pipe passing through the water tank is fixed, resulting in inconsistent heat recovery between water near and far from the pipe. Even with the stirring rod, since the pipe runs through the center of the tank and the stirring rod is only located on one side, it is difficult to evenly agitate the water on both sides of the pipe simultaneously. Therefore, a new technical solution is needed to address this issue. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a heat energy recovery component for waste gas treatment. This solves the problem that current traditional heat energy recovery components for waste gas treatment use a stirring rod in the water tank to drive the internal liquid flow. After the flow, the heat uniformity can be improved. However, when using a stirring rod, the position of the pipe through the water tank is fixed, resulting in inconsistent heat energy recovery effects between the water near and far from the pipe. Even when using a stirring rod, since the pipe runs through the center of the tank, the stirring rod is only set on one side, making it difficult to uniformly stir the water on both sides of the pipe at the same time.

[0006] To achieve the purpose of this utility model, the technical solution adopted by this utility model is as follows: a heat energy recovery component for waste gas treatment is designed, including a device housing. A first rotary joint is installed on one side of the device housing. One end of the first rotary joint is rotatably connected to one end of a gas transmission pipe. The other end of the gas transmission pipe passes through the device housing and is rotatably connected to a second rotary joint installed on the other side of the device housing. A transmission component is provided at one end of the gas transmission pipe located inside the device housing.

[0007] Preferably, the transmission assembly includes a first gear, through which an air supply pipe passes, and the penetration position between the first gear and the air supply pipe is fixed.

[0008] Preferably, one end of the first gear meshes with a second gear, one end of the second gear is fixed with a rotating rod, the end of the rotating rod away from the second gear passes through the device housing and is connected to the output shaft of the motor through a coupling, and the motor is mounted on the side of the device housing.

[0009] Preferably, the gas transmission pipeline is externally connected to a plurality of first connecting pipes, and the end of the first connecting pipe away from the gas transmission pipeline is connected to a second connecting pipe.

[0010] Preferably, the gas pipeline is externally connected to a plurality of first connecting pipes, and the end of the first connecting pipe away from the gas pipeline is connected to a second connecting pipe. One end of the second connecting pipe is a sealed structure and has a spiral cavity inside.

[0011] Preferably, each of the four corners of the bottom of the device housing is equipped with a support rod, the other end of which is fixed to a support base plate. Both the top and bottom ends of the device housing are connected to one end of a tube, and the other end of the tube is detachably connected to a tube cover.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model combines a first rotary joint, an air supply pipe, and a transmission component. The air supply pipe, through the cooperation of the first rotary joint and the transmission component, can rotate inside the device box and drive multiple connecting pipes to stir the water inside the box. At the same time, the exhaust gas flows through the air supply pipe and the connected first and second connecting pipes. All pipes stir the water together, which effectively improves the heat exchange uniformity. It also realizes the integrated setting of the conveying mechanism and the stirring mechanism, improving the performance and integration of the device.

[0014] 2. By combining the first connecting pipe, the second connecting pipe, and the spiral cavity, the exhaust gas will pass through the spiral cavity inside the second connecting pipe when it enters the second connecting pipe through the first connecting pipe. This causes the gas to move along the spiral cavity, increasing the residence time of the exhaust gas and further improving the heat recovery effect when multiple second connecting pipes are agitated. Attached Figure Description

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

[0016] Figure 2 This is a schematic diagram of the internal structure of the device housing of this utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the second connecting pipe of this utility model.

[0018] In the diagram: 1. Device housing; 101. Support base plate; 102. Pipe body; 103. Pipe cover; 104. Support rod; 2. Motor; 201. First rotary joint; 202. Second connecting pipe; 203. Second rotary joint; 204. First connecting pipe; 205. Rotating rod; 206. Gas transmission pipeline; 207. Second gear; 208. First gear; 3. Spiral cavity. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0020] Example 1: A heat recovery component for waste gas treatment, see [link to example]. Figures 1 to 3The device includes a housing 1. A first rotary joint 201 is installed on one side of the housing 1. One end of the first rotary joint 201 is rotatably connected to one end of a gas supply pipe 206. The other end of the gas supply pipe 206 passes through the housing 1 and is rotatably connected to a second rotary joint 203 installed on the other side of the housing 1. A transmission component is provided at the end of the gas supply pipe 206 located inside the housing 1. The gas supply pipe 206 is first connected to an external flue gas pipe. Since the gas supply pipe 206 is rotatably connected to the first rotary joint 201, after the motor 2 is started, the motor 2 will drive the second gear 207 to rotate. The second gear 207 will drive the first gear 208 to rotate. The first gear 208 will drive the gas supply pipe 206, causing the gas supply pipe 206 to rotate inside the housing 1. During the rotation of the gas supply pipe 206, multiple first connecting pipes 204 and second connecting pipes 202 will be rotated simultaneously. The water inside the device housing 1 is agitated. Simultaneously, the incoming waste gas flows not only through the gas delivery pipe 206 but also into the first connecting pipe 204 and the second connecting pipe 202 connected to the gas delivery pipe 206. This agitates the water through the first connecting pipe 204 and the second connecting pipe 202, improving the uniformity of heat exchange. The integrated design of the conveying mechanism and the agitation mechanism solves the problem of inconsistent heat recovery effects between water near and far from the pipe in traditional heat recovery components for waste gas treatment. While a stirring rod is used to drive the internal liquid flow in the water tank, improving the uniformity of heating, the fixed position of the pipe through the water tank leads to inconsistent heat recovery effects. Even with a stirring rod, the pipe is located in the center of the housing, and the stirring rod is only placed on one side, making it difficult to uniformly agitate the water on both sides of the pipe simultaneously.

[0021] For details, see Figure 2 The transmission component includes a first gear 208, through which an air supply pipe 206 passes, and the penetration position of the first gear 208 and the air supply pipe 206 is fixed.

[0022] Further, see Figure 2 The first gear 208 is meshed with the second gear 207 at one end. The second gear 207 has a rotating rod 205 fixed at one end. The end of the rotating rod 205 away from the second gear 207 passes through the device housing 1 and is connected to the output shaft of the motor 2 through a coupling. The motor 2 is installed on the side of the device housing 1.

[0023] It is worth noting that, see Figure 2 The gas pipeline 206 is externally connected to multiple first connecting pipes 204, and the end of the first connecting pipe 204 away from the gas pipeline 206 is connected to a second connecting pipe 202.

[0024] It is worth noting that, see Figure 3The gas transmission pipeline 206 is externally connected to multiple first connecting pipes 204. The end of the first connecting pipe 204 away from the gas transmission pipeline 206 is connected to a second connecting pipe 202. One end of the second connecting pipe 202 is a sealed structure, and a spiral cavity 3 is provided inside it. When the exhaust gas flows from the first connecting pipe 204 into the second connecting pipe 202, it will enter the spiral cavity 3 inside the second connecting pipe 202. Under the guidance of the spiral cavity 3, the exhaust gas moves along its spiral path. The spiral movement prolongs the residence time of the exhaust gas in the second connecting pipe 202. At the same time, the multiple second connecting pipes 202 will generate a stirring effect during operation. The increase in the residence time of the exhaust gas allows for more complete and in-depth heat exchange between the exhaust gas and the interior and surrounding environment of the second connecting pipes 202. This further improves the heat recovery effect of the exhaust gas when the multiple second connecting pipes 202 are stirring, which helps to improve energy utilization efficiency and reduce energy waste.

[0025] It is worth mentioning that, see Figure 1 The device housing 1 has a support rod 104 installed at one end of each of the four corners of the bottom. The other end of the support rod 104 is fixed to a support base plate 101. The upper and lower ends of the device housing 1 are connected to one end of a tube 102. The other end of the tube 102 is detachably connected to a tube cap 103.

[0026] When using a heat recovery assembly for waste gas treatment, the gas supply pipe 206 is first connected to an external flue gas pipe. Since the gas supply pipe 206 is rotatably connected to the first rotary joint 201, after starting the motor 2, the motor 2 drives the second gear 207 to rotate. The second gear 207 then drives the first gear 208 to rotate, which in turn drives the gas supply pipe 206 to rotate inside the device housing 1. During this rotation, the gas supply pipe 206 simultaneously drives multiple first connecting pipes 204 and second connecting pipes 202 to rotate, thereby agitating the water inside the device housing 1. Simultaneously, the incoming waste gas not only flows through the gas supply pipe 206 but also enters the first connecting pipes 204 and second connecting pipes 202 connected to the gas supply pipe 206, thus facilitating the flow of waste gas into the water. The first connecting pipe 204 and the second connecting pipe 202 agitate the water, improving the uniformity of heat exchange. The conveying mechanism and the agitation mechanism are integrated. When the exhaust gas flows from the first connecting pipe 204 into the second connecting pipe 202, it enters the spiral cavity 3 inside the second connecting pipe 202. Guided by the spiral cavity 3, the exhaust gas moves along its spiral path. The spiral movement prolongs the residence time of the exhaust gas in the second connecting pipe 202. At the same time, the multiple second connecting pipes 202 generate an agitation effect during operation. The increased residence time of the exhaust gas allows for more thorough and in-depth heat exchange between the exhaust gas and the interior and surrounding environment of the second connecting pipes 202. This further enhances the heat recovery effect of the exhaust gas during agitation by the multiple second connecting pipes 202, helping to improve energy utilization efficiency and reduce energy waste.

[0027] In addition, all components designed in this utility model are general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this utility model does not involve improvements to the internal structure and method.

Claims

1. A heat recovery assembly for exhaust gas treatment comprising a device cabinet (1), characterized in that, A first rotary joint (201) is installed on one side of the device housing (1). One end of the first rotary joint (201) is rotatably connected to one end of a gas supply pipe (206). The other end of the gas supply pipe (206) passes through the device housing (1) and is rotatably connected to a second rotary joint (203) installed on the other side of the device housing (1). A transmission component is provided at one end of the gas supply pipe (206) located inside the device housing (1).

2. The heat recovery assembly for exhaust gas treatment of claim 1, wherein, The transmission assembly includes a first gear (208), through which an air supply pipe (206) passes, and the penetration position between the first gear (208) and the air supply pipe (206) is fixed.

3. The heat recovery assembly for exhaust gas treatment of claim 2, wherein, The first gear (208) is meshed with a second gear (207) at one end. A rotating rod (205) is fixed at one end of the second gear (207). The end of the rotating rod (205) away from the second gear (207) passes through the device housing (1) and is connected to the output shaft of the motor (2) through a coupling. The motor (2) is installed on the side of the device housing (1).

4. The heat recovery assembly for exhaust gas treatment of claim 2, wherein, The gas pipeline (206) is externally connected to a plurality of first connecting pipes (204), and the end of the first connecting pipe (204) away from the gas pipeline (206) is connected to a second connecting pipe (202).

5. The heat recovery assembly for exhaust gas treatment of claim 2, wherein, The gas pipeline (206) is externally connected to a plurality of first connecting pipes (204). The end of the first connecting pipe (204) away from the gas pipeline is connected to a second connecting pipe (202). One end of the second connecting pipe (202) is a sealed structure and has a spiral cavity (3) inside.

6. The heat recovery assembly for exhaust gas treatment of claim 1, wherein, The device housing (1) has a support rod (104) installed at one end of each of its four corners. The other end of the support rod (104) is fixed with a support base plate (101). The upper and lower ends of the device housing (1) are connected to one end of a tube (102). The other end of the tube (102) is detachably connected to a tube cap (103).

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