Waste heat recycling device of thermal oxidation equipment

Abstract

The utility model relates to the technical field of waste heat recycling of oxidation furnaces, in particular to a waste heat recycling device of thermal oxidation equipment, which comprises a waste heat recycling box. Heat exchange cavities are formed between the partition plates and the top of the waste heat recovery box, between the partition plates and the bottom of the waste heat recovery box and between every two adjacent sets of partition plates, U-shaped heat exchange pipes are arranged in the heat exchange cavities, and rotating rings are arranged at one ends of the U-shaped heat exchange pipes for supporting. The rotating rings are connected in series and fixedly connected through a shaft rod, and the two ends of the shaft rod are rotationally connected to the interior of the waste heat recovery box. According to the waste heat recycling device, water in the waste heat recycling box can be divided into areas, when flue gas sequentially passes through heat exchange pipes in different areas, step-by-step cooling in the waste heat recycling box can be achieved, and recycling of flue gas heat is better facilitated.

Description

Technical Field

[0001] This utility model relates to the field of waste heat recovery and utilization technology of oxidation furnaces, and in particular to a waste heat reuse device for thermal oxidation equipment. Background Technology

[0002] An oxidation furnace is an industrial or experimental device used to oxidize materials, widely used in metal processing, semiconductor manufacturing, materials science, and other fields. Its core working principle is to control the furnace environment (temperature, atmosphere, time, etc.) to cause the surface or the entire material to react chemically with oxygen or other oxidizing gases, forming an oxide layer or changing the material's properties.

[0003] Because the combustion of waste gas in an oxidizer is incomplete, the resulting flue gas still contains a small amount of harmful gases. To address this, existing technology (publication number CN216591743U) discloses a regenerative oxidizer flue gas waste heat recovery device. This device purifies the flue gas by using a filter assembly and a combustion chamber, and then efficiently utilizes the heat contained in the flue gas through a waste heat recovery tank and a hot water tank, thereby preventing the waste of heat in the flue gas.

[0004] However, the waste heat recovery device for oxidizer flue gas disclosed in the above-mentioned prior art still has the following technical problems in use: since the above only heats the water in the hot water tank through a serpentine heat exchange tube, once the water temperature rises, the heat exchange efficiency of the entire flue gas is relatively low. Summary of the Invention

[0005] The main purpose of this utility model is to overcome the shortcomings of the existing technology and provide a waste heat recovery device for thermal oxidation equipment.

[0006] The technical solution adopted by this utility model to achieve its technical objective is as follows: a waste heat recovery device for thermal oxidation equipment, including a waste heat recovery box. Multiple partitions are uniformly fixedly installed inside the waste heat recovery box. A heat exchange cavity is formed between the partitions and the top of the waste heat recovery box, between the partitions and the bottom of the waste heat recovery box, and between every two sets of adjacent partitions. A U-shaped heat exchange tube is arranged inside the heat exchange cavity. By setting the partitions, the interior of the waste heat recovery box 1 is divided into sections. By setting the U-shaped heat exchange tubes, the travel time of the flue gas in the heat exchange tubes can be extended, which is more conducive to heat exchange and thus more conducive to the cooling of the pipeline.

[0007] One end of the U-shaped heat exchange tube is supported by a rotating ring. The rotating ring is connected in series and fixedly via a shaft. The two ends of the shaft are rotatably connected inside the waste heat recovery box. A drive motor is fixedly installed on the top of the waste heat recovery box. The drive motor drives the shaft to rotate. When the shaft rotates, it drives the rotating ring to rotate. The rotating ring can cause one end of the U-shaped heat exchange tube to bounce up and down.

[0008] Preferably, every two sets of heat exchange tubes are connected in series at the other end by a connecting pipe with a semi-circular structure, so that the multiple heat exchange tubes form an S-shaped structure, and the middle part of the connecting pipe is fixedly installed in the partition.

[0009] The uppermost and lowermost heat exchange tubes are respectively fixedly connected to an air inlet pipe and an air outlet pipe at their other ends. The air inlet pipe and the air outlet pipe pass through the waste heat recovery box and are fixedly installed on the side wall of the waste heat recovery box.

[0010] Preferably, the connecting pipe is fixedly connected to the other end of the heat exchange tube, the air inlet pipe is connected to the other end of the heat exchange tube, and the air outlet pipe is connected to the other end of the heat exchange tube via flexible hoses. The flexible hoses allow the other end of the heat exchange tube to be movably connected to the connecting pipe, the air inlet pipe, and the air outlet pipe, thereby cooperating with the rotating ring to drive one end of the U-shaped heat exchange tube to bounce up and down.

[0011] Preferably, the side of the rotating ring that contacts the heat exchange tube is set as a sloping surface, and hemispherical protrusion particles are fixedly laid on the sloping surface; through the combination of the sloping surface and the protrusion particles, when the rotating ring rotates, it can drive one end of the U-shaped heat exchange tube to bounce up and down.

[0012] Preferably, one end of the U-shaped heat exchange tube is also fixedly mounted on the partition plate by a connecting plate, a base plate, and a support spring; the connection plate, base plate, and support spring make the connection of one end of the heat exchange tube more stable, ensuring the stability of the structure, and the support spring can cooperate with the rotating ring to enable one end of the heat exchange tube to automatically reset.

[0013] Both the connecting plate and the base plate are configured as T-shaped structures. The connecting plate is fixedly installed at one end of the U-shaped heat exchange tube, the base plate is fixedly installed on the partition plate, and the support spring is fixedly installed between the connecting plate and the base plate.

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

[0015] This waste heat recovery device for thermal oxidation equipment, through the arrangement of components such as U-shaped heat exchange tubes, waste heat recovery boxes, and baffles, can divide the water inside the waste heat recovery box into zones. When the flue gas passes through the heat exchange tubes of different zones in sequence, the temperature inside the waste heat recovery box can be gradually reduced, which is more conducive to the recovery and utilization of flue gas heat. Furthermore, because the flue gas heat is consumed in stages, water with different temperatures can be generated through heat exchange in different zones, resulting in better water utilization.

[0016] The waste heat recovery device of this thermal oxidation equipment, through the setting of components such as drive motor, shaft, rotating ring, inclined surface and convex particles, enables one end of the U-shaped heat exchange tube to bounce up and down, thereby causing the heat exchange tube to drive the fluctuation of the surrounding water source, thereby increasing the flow of water source in each area, which is conducive to the temperature mixing of water source, and also facilitates the recovery and utilization of flue gas heat and the use of water source. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main cross-sectional structure of the waste heat recovery device of the thermal oxidation equipment.

[0018] Figure 2 This is a top view schematic diagram of the rotating ring and the protruding particles.

[0019] in:

[0020] 1-Waste heat recovery box; 101-Heat exchange chamber; 2-Baffle; 3-Inlet pipe; 4-Outlet pipe; 5-Connecting pipe; 6-Elastic hose; 7-Heat exchange tube; 8-Drive motor; 801-Shaft; 802-Rotating ring; 803-Protruding particles; 9-Connecting plate; 901-Base plate; 902-Supporting spring. Detailed Implementation

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit its scope. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of the present utility model. Example

[0024] Please see Figure 1-2 A waste heat recovery device for thermal oxidation equipment includes a waste heat recovery box 1. Multiple partitions 2 are uniformly fixedly installed inside the waste heat recovery box 1. A heat exchange cavity 101 is formed between the partitions 2 and the top of the waste heat recovery box 1, between the partitions 2 and the bottom of the waste heat recovery box 1, and between every two sets of adjacent partitions 2. A U-shaped heat exchange tube 7 is arranged inside the heat exchange cavity 101. By setting the partitions 2, the interior of the waste heat recovery box 1 is divided into sections. By setting the U-shaped heat exchange tube 7, the travel time of flue gas in the heat exchange tube 7 can be extended, which is more conducive to heat exchange and thus more conducive to the cooling of the pipeline.

[0025] Two sets of heat exchange tubes 7 are connected in series at the other end by a semi-circular connecting pipe 5, so that multiple heat exchange tubes 7 form an S-shaped structure. The middle part of the connecting pipe 5 is fixedly installed in the partition 2. The uppermost and lowermost heat exchange tubes 7 are respectively fixedly connected to an air inlet pipe 3 and an air outlet pipe 4 at the other end. The air inlet pipe 3 and the air outlet pipe 4 pass through the waste heat recovery box 1 and are fixedly installed on the side wall of the waste heat recovery box 1.

[0026] The connection between the connecting pipe 5 and the other end of the heat exchange pipe 7, the connection between the air inlet pipe 3 and the other end of the heat exchange pipe 7, and the connection between the air outlet pipe 4 and the other end of the heat exchange pipe 7 are all fixedly connected by flexible hoses 6. The flexible hoses 6 allow the other end of the heat exchange pipe 7 to be movably connected to the connecting pipe 5, the air inlet pipe 3, and the air outlet pipe 4, so as to cooperate with the rotating ring 802 to drive one end of the U-shaped heat exchange pipe 7 to bounce up and down.

[0027] One end of the U-shaped heat exchange tube 7 is supported by a rotating ring 802. The rotating ring 802 is connected in series and fixedly connected by a shaft 801. The two ends of the shaft 801 are rotatably connected inside the waste heat recovery box 1. A drive motor 8 is fixedly installed on the top of the waste heat recovery box 1. The drive motor 8 drives the shaft 801 to rotate. When the shaft 801 rotates, it drives the rotating ring 802 to rotate. The rotating ring 802 can drive one end of the U-shaped heat exchange tube 7 to bounce up and down.

[0028] Furthermore, in this embodiment, the side of the rotating ring 802 that contacts the heat exchange tube 7 is set as a sloping surface, and hemispherical protrusion particles 803 are fixedly laid on the sloping surface; through the combination of the sloping surface and the protrusion particles 803, when the rotating ring 802 rotates, it can drive one end of the U-shaped heat exchange tube 7 to bounce up and down.

[0029] Furthermore, in this embodiment, one end of the U-shaped heat exchange tube 7 is also fixedly mounted on the partition plate 2 via a connecting plate 9, a base plate 901, and a support spring 902. Both the connecting plate 9 and the base plate 901 are T-shaped structures. The connecting plate 9 is fixedly mounted on one end of the U-shaped heat exchange tube 7, the base plate 901 is fixedly mounted on the partition plate 2, and the support spring 902 is fixedly mounted between the connecting plate 9 and the base plate 901. The arrangement of the connecting plate 9, the base plate 901, and the support spring 902 ensures a more stable connection at one end of the heat exchange tube 7, guaranteeing structural stability. Additionally, the support spring 902, in conjunction with the rotating ring 802, allows one end of the heat exchange tube 7 to automatically reset.

[0030] Specifically, in use, the waste heat recovery box 1 is first filled with water. When the thermal oxidation equipment generates flue gas during use, it is introduced into the U-shaped heat exchange tube 7 through the air inlet pipe 3. The U-shaped structure can extend the travel time of the flue gas in the heat exchange tube 7, which is more conducive to heat exchange and thus more conducive to the cooling of the pipe.

[0031] Furthermore, by setting up the partition 2, the interior of the waste heat recovery box 1 is divided into zones, thereby dividing the water inside the waste heat recovery box 1 into areas. When the flue gas passes through the heat exchange tubes 7 in different areas in sequence, the temperature inside the waste heat recovery box 1 can be gradually reduced, which is more conducive to the recovery and utilization of flue gas and the control of water temperature.

[0032] Simultaneously, the drive motor 8 drives the shaft 801 to rotate and the rotating ring 802 to rotate. The rotating ring 802 is provided with a sloping surface and protruding particles 803. When the rotating ring 802 rotates, it can drive one end of the U-shaped heat exchange tube 7 to bounce up and down. When the heat exchange tube 7 bounces up and down, it can drive the fluctuation of the surrounding water source, thereby increasing the flow of water source in each area and facilitating the mixing of water source temperature.

[0033] It should be noted that although the above embodiments have been described herein, this does not limit the scope of patent protection for this utility model. Therefore, any changes and modifications made to the embodiments described herein based on the innovative concept of this utility model, or equivalent structural, procedural, or functional transformations made using the content of this utility model's specification and drawings, directly or indirectly applying the above technical solutions to other related technical fields, are all included within the scope of protection of this utility model patent.

Claims

1. A waste heat recovery device for thermal oxidation equipment, comprising a waste heat recovery box (1), characterized in that: Multiple partitions (2) are uniformly fixedly installed inside the waste heat recovery box (1). A heat exchange cavity (101) is formed between the partition (2) and the top of the waste heat recovery box (1), between the partition (2) and the bottom of the waste heat recovery box (1), and between every two sets of adjacent partitions (2). A U-shaped heat exchange tube (7) is provided inside the heat exchange cavity (101). The U-shaped heat exchange tube (7) is supported by a rotating ring (802) at one end. The rotating ring (802) is connected in series and fixedly connected by a shaft (801). The two ends of the shaft (801) are rotatably connected inside the waste heat recovery box (1).

2. The waste heat recovery device for thermal oxidation equipment according to claim 1, characterized in that: Each pair of heat exchange tubes (7) are connected in series at the other end by a connecting pipe (5) with a semi-circular structure, so that the multiple heat exchange tubes (7) form an S-shaped structure; The heat exchange tubes (7) at the top and bottom are respectively fixedly connected to an air inlet pipe (3) and an air outlet pipe (4) at the other end.

3. The waste heat recovery device for thermal oxidation equipment according to claim 2, characterized in that: The connecting pipe (5) and the other end of the heat exchange pipe (7), the air inlet pipe (3) and the other end of the heat exchange pipe (7), and the air outlet pipe (4) and the other end of the heat exchange pipe (7) are all fixedly connected by elastic hoses (6).

4. The waste heat recovery device for thermal oxidation equipment according to claim 1, characterized in that: The side of the rotating ring (802) that contacts the heat exchange tube (7) is set as a slope surface, and hemispherical protrusion particles (803) are fixedly laid on the slope surface.

5. The waste heat recovery device for thermal oxidation equipment according to claim 1, characterized in that: One end of the U-shaped heat exchange tube (7) is also fixedly installed on the partition plate (2) by a connecting plate (9), a base plate (901) and a support spring (902).

Images