Heat transfer reducing structure for VOC (volatile organic compound) system
The design of double-layer ceramic cotton pads and fixing mechanism solves the problem of excessively high temperature in the TO furnace shell, achieving safety and extending equipment life, and improving the ease of use and safety of the VOC system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2026-03-03
AI Technical Summary
In existing VOC systems, the temperature of the TO furnace shell is too high, posing a risk of burns, and the high temperature diffusion affects the operational accuracy and lifespan of equipment components.
It adopts a double-layer ceramic cotton pad and a fixing mechanism. Through the design of bolts, fixing plates, swivel rings and other components, multiple bolts can be disassembled and assembled simultaneously, which facilitates the replacement of ceramic cotton pads, reduces heat transfer and improves the heat insulation effect.
It effectively reduces the temperature of the TO furnace shell, avoids the risk of burns to the human body, slows down equipment wear, and improves the stability and maintainability of equipment operation.
Smart Images
Figure CN223965411U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of waste gas treatment equipment, specifically a heat transfer reduction structure for a VOC system. Background Technology
[0002] VOCs (volatile organic compounds) refer to a class of organic compounds that exist in the air as vapor at room temperature. Their boiling points are typically between 50°C and 250°C, and their saturated vapor pressure at room temperature exceeds 133.32 Pa. In an environmental sense, VOCs refer to reactive, potentially harmful volatile organic compounds, mainly including hydrocarbons, halogenated hydrocarbons, oxygenated hydrocarbons, and nitrogenous hydrocarbons. VOCs have a wide range of sources, primarily industrial and residential. Industrial sources include petroleum refining and petrochemicals, coal processing and conversion, and the production of coatings, inks, adhesives, and pesticides. VOCs pose significant risks to human health and the environment. High concentrations of VOCs can cause headaches, nausea, vomiting, and fatigue; in severe cases, they can even cause convulsions, coma, and damage to the liver, kidneys, brain, and nervous system. Therefore, VOCs must be purified before being released. Heat exchangers and TO furnaces are needed when treating organic waste gases.
[0003] The heat exchanger utilizes the principle of heat conduction to transfer heat between two gases at different temperatures. The waste gas is converted into carbon dioxide and water vapor in the reaction chamber and is heated. Since the connection between the radiator outlet and the TO furnace inlet is usually a direct contact connection via bolts and flanges, the high-temperature and purified gas conducts heat outward through the shell side of the shell-and-tube heat exchanger, transferring the heat to the shell through the TO furnace inlet. However, the heat transfer can only be partially blocked by the original single-layer ceramic cotton gasket and flange partition of the TO furnace, and the temperature of the TO furnace shell still reaches 75°C. This excessively high temperature on the outer wall of the shell poses a risk of burns, requiring additional heat insulation equipment to prevent burns. At the same time, the diffused high temperature will affect the accuracy of the operation of external equipment components and accelerate equipment wear and aging. Utility Model Content
[0004] The purpose of this invention is to provide a heat transfer reduction structure for VOC systems to solve the problems mentioned in the prior art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a heat transfer reduction structure for a VOC system, including a TO furnace, a heat exchanger on one side of the TO furnace, an air inlet on one side of the TO furnace, and an air outlet on one side of the heat exchanger. A flange steel plate is connected to one end of each of the air inlet and air outlet, and two ceramic cotton pads are provided between the two flange steel plates. Double-layer ceramic cotton pads are provided on the inner and outer walls of the air outlet and air inlet respectively. A fixing mechanism is fitted around the outside of the air outlet, and several bolts are provided around the outside of the air inlet. The bolts penetrate the two flange steel plates and are connected to the fixing mechanism. Through holes adapted to the bolts are provided on both the flange steel plates and the ceramic cotton pads. The fixing mechanism includes a fixing plate, which is fixedly fitted around the outside of the air outlet. Several through holes are symmetrically provided on one side of the fixing plate.
[0006] Furthermore, the fixing mechanism also includes a rotating ring. The side wall of the arc portion of the fixing disk has a driving groove. The rotating ring is rotatably installed inside the fixing disk. Several transmission grooves are symmetrically opened inside the fixing disk, and the transmission grooves are connected to the driving grooves and the through holes. A threaded cylinder is rotatably installed in the transmission groove. A gear is sleeved on the outer wall of the threaded cylinder. Several tooth grooves that mesh with the gears are opened on the inner wall of the rotating ring. Limiting rings that are movably connected to the rotating ring are provided on both sides of the rotating ring. Several handles are symmetrically provided on the outer wall of the rotating ring. The fixing mechanism is designed to synchronously drive multiple gears to rotate the threaded cylinder, so that multiple bolts can be disassembled at the same time, so as to quickly assemble or disassemble the two flange steel plates, and facilitate their disassembly and replacement of the ceramic cotton gasket, making it more practical.
[0007] Furthermore, the inner wall of the drive groove is symmetrically provided with annular grooves adapted to the limiting ring, and the limiting ring is slidably connected to the inner wall of the annular groove. A screw is threadedly connected to one side of the fixed plate, and several insertion holes adapted to the screw are symmetrically provided on the right side of the limiting ring to guide and limit the limiting ring, thereby improving the stability of the rotating ring. The screw can limit and fix the position of the rotating ring, avoiding accidental contact that could cause it to rotate and affect the connection and fixing effect between the two flange steel plates.
[0008] Furthermore, two sets of concentric ceramic cotton strips are respectively provided on the corresponding positions of the opposite outer walls of the two ceramic cotton pads. Each ceramic cotton strip set consists of several symmetrically arranged ceramic cotton strips. The opposite walls of the two flange plates are provided with slots that are adapted to the ceramic cotton strips in the two sets of ceramic cotton strips. On one side of the ceramic cotton pad, which is away from the ceramic cotton strip set, several ceramic cotton strips are symmetrically arranged on the side wall. On the other side of the ceramic cotton pad, several slots that are adapted to the ceramic cotton strips are provided on one side. This is to provide positioning and guidance for the assembly of the two ceramic cotton pads. At the same time, it can limit the position of the two ceramic cotton pads when the two flange plates are connected, so as to prevent the ceramic cotton pads from shifting when the two flange plates are connected and fixed, thereby affecting the heat insulation effect.
[0009] Furthermore, each of the through holes is provided with a ceramic cotton sleeve, which is fitted over the outside of the bolt. A ceramic cotton pad is fitted over the outside of one end of the bolt, and the ceramic cotton pad is located on the side of the flange steel plate near the air inlet, so as to insulate the flange steel plate from the bolt and prevent heat from being transferred through the bolt.
[0010] Furthermore, the threaded cylinder is rotatably connected to the fixed disc via a bearing, and the surface of the flange steel plate is covered with a weather-resistant layer to improve heat insulation and heat transfer.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] 1. This utility model utilizes a double-layer ceramic cotton pad and a double-layered ceramic cotton pad structure to reduce heat transfer between the air inlet and outlet, thereby preventing heat from the heat exchanger from being transferred to the shell of the TO furnace, which could cause the temperature to rise and pose a risk of burns to people. This also delays the wear and aging of the equipment. The fixing mechanism allows for easy and synchronous driving of multiple threaded cylinders to rotate, separating them from the bolts. This enables the simultaneous disassembly of multiple bolts, improving the assembly and disassembly effect between the two flange steel plates. It also facilitates the replacement of the ceramic cotton pad in the later stages, making it convenient to use and more practical.
[0013] 2. This utility model can limit and fix the rotating ring through the screw and several insertion holes, and indirectly fix the threaded cylinder, so as to avoid accidental contact that would cause the rotating ring to rotate, thereby affecting the connection and fixing effect between the two flange steel plates. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the connection structure between the air inlet and the air outlet of this utility model;
[0016] Figure 3 This is a partial structural diagram of the flange steel plate, ceramic cotton gasket, and fixing plate of this utility model;
[0017] Figure 4 This is a schematic diagram of the structure between two ceramic cotton pads, ceramic cotton strip one and ceramic cotton strip two of this utility model;
[0018] Figure 5 This is a schematic diagram of the structure between the fixed disc, the rotating ring, and the threaded cylinder of this utility model.
[0019] The following are the labels in the diagram: 1. TO furnace; 2. Heat exchanger; 3. Air inlet; 4. Air outlet; 5. Flange steel plate; 6. Double-layer ceramic cotton gasket; 7. Ceramic cotton gasket one; 8. Bolt; 9. Fixing plate; 10. Rotary ring; 11. Threaded cylinder; 12. Gear; 13. Limiting ring; 14. Screw; 15. Ceramic cotton gasket two; 16. Ceramic cotton strip assembly; 17. Ceramic cotton strip one; 18. Ceramic cotton strip two; 19. Transmission groove; 20. Drive groove; 21. Gear groove; 22. Ceramic cotton sleeve. Detailed Implementation
[0020] 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.
[0021] Example: Figure 1 - Figure 5As shown, this utility model provides a technical solution: a heat transfer reduction structure for a VOC system, including a TO furnace 1, a heat exchanger 2 on one side of the TO furnace 1, an air inlet 3 on one side of the TO furnace 1, and an air outlet 4 on one side of the heat exchanger 2. Flange steel plates 5 are connected to opposite ends of the air inlet 3 and the air outlet 4, and two ceramic cotton pads 7 are provided between the two flange steel plates 5. Double-layer ceramic cotton pads 6 are provided on the inner and outer walls of the air outlet 4 and the air inlet 3, respectively. A fixing mechanism is fitted on the outside of the air outlet 4, and several bolts 8 are provided on the outside of the air inlet 3. The bolts 8 penetrate the two flange steel plates 5 and are connected to the fixing mechanism. Through holes adapted to the bolts 8 are provided on both the flange steel plates 5 and the ceramic cotton pads 7. The fixing mechanism includes a fixing plate 9, which is fixedly fitted on the outside of the air outlet 4. Several through holes are symmetrically provided on one side of the fixing plate 9. In this example, the fixing mechanism also includes a rotating ring 10. A drive groove 20 is provided on the side wall of the arc portion of the fixed disk 9. The rotating ring 10 is rotatably mounted inside the fixed disk 9. Several transmission grooves 19 are symmetrically provided inside the fixed disk 9, and the transmission grooves 19 communicate with the drive grooves 20 and the through hole. A threaded cylinder 11 is rotatably mounted inside the transmission groove 19. A gear 12 is sleeved on the outer wall of the threaded cylinder 11. Several toothed grooves 21 that mesh with the gear 12 are provided on the inner wall of the rotating ring 10. Both sides of the rotating ring 10 are provided with movably connected... The limiting ring 13 and the rotating ring 10 have several handles symmetrically arranged on their outer walls. In this example, the ceramic cotton pad 7 and the double-layer ceramic cotton pad 6 are both high-density ceramic cotton pads, while the ceramic cotton strip 18 and the ceramic cotton strip 17 are both high-density ceramic cotton strips. The setting of the fixing mechanism allows it to synchronously drive multiple gears 12 to rotate the threaded cylinder 11, enabling it to simultaneously disassemble multiple bolts 8 for quick assembly or disassembly of the two flange steel plates 5, facilitating the replacement of the ceramic cotton pad 7 and enhancing its practicality. In this example, the inner wall of the drive groove 20 is symmetrically provided with annular grooves adapted to the limiting ring 13, and the limiting ring 13 is slidably connected to the inner wall of the annular groove. The fixing plate 9 is threadedly connected to a screw 14 on one side, and the right side of the limiting ring 13 is symmetrically provided with several insertion holes adapted to the screw 14 to guide and limit the limiting ring 13, improving the stability of the rotating ring 10. The setting of the screw 14 can limit and fix the position of the rotating ring 10, preventing accidental contact that could cause it to rotate and affect the connection and fixing effect between the two flange steel plates 5.
[0022] In this example, two sets of concentric ceramic cotton strip groups 16 are respectively provided on the corresponding positions of the outer side walls of the two ceramic cotton pads 7. Each ceramic cotton strip group 16 is composed of several symmetrically arranged ceramic cotton strips 17. The opposing walls of the two flange plates 5 are provided with slots 1 that are adapted to the ceramic cotton strips 17 in the two sets of ceramic cotton strip groups 16. On one side of the ceramic cotton pad 7 away from the ceramic cotton strip group 16, several ceramic cotton strips 2 18 are symmetrically arranged. On the other side of the ceramic cotton pad 7, several slots 2 that are adapted to the ceramic cotton strips 2 18 are provided. This is to position and guide the assembly of the two ceramic cotton pads 7. At the same time, it can also connect the two flange plates 5 to limit the position of the two ceramic cotton pads 7 and prevent the ceramic cotton pads 7 from shifting when the two flange plates 5 are connected and fixed, thus affecting the heat insulation effect. In this example, each through hole is fitted with a ceramic cotton sleeve 22, which is fitted over the bolt 8. A ceramic cotton gasket 25 is fitted over one end of the bolt 8, and the ceramic cotton gasket 25 is located on the side of the flange steel plate 5 near the air inlet 3, so as to insulate the flange steel plate 5 from the bolt 8 and prevent heat transfer through the bolt 8. In this example, the threaded cylinder 11 is rotatably connected to the fixed plate 9 through a bearing, and the surface of the flange steel plate 5 is covered with a weather-resistant layer to improve the heat insulation and heat transfer effect.
[0023] The working principle of this utility model is as follows: During use, the cold organic waste gas and the purified gas after combustion exchange heat through heat exchanger 2, thereby increasing the temperature of the organic waste gas. Then, the heated waste gas enters the combustion chamber of TO furnace 1 through outlet 4 and inlet 3 for reaction. The double-layer ceramic cotton pads 6 and 7 are provided to block the heat of the high-temperature gas, ensuring the stability of the heat inside the furnace while reducing the temperature of the outer wall of the shell, reducing the risk of burns to people, and delaying equipment wear and aging. When it is necessary to disassemble the two flange steel plates 5 to replace or repair the ceramic cotton pad 7, the screw 1 can be twisted. 4. Remove one end of the screw 14 inserted into the socket, and then apply force to the handle on the rotating ring 10 to drive the rotating ring 10 to rotate under the limiting guidance of the limiting ring 13. At the same time, the toothed groove 21 on the limiting ring 13 will drive the meshing gear 12 to rotate the threaded cylinder 11, causing the threaded cylinder 11 to separate from the bolt 8, realizing the simultaneous disassembly of multiple bolts 8. After the bolts 8 are separated from the threaded cylinder 11, the bolts 8 can be pulled out, thus separating the two flange steel plates 5. Then the two ceramic cotton gaskets 7 can be disassembled and removed. Connect the two flange steel plates 5. When fixing, first assemble the two ceramic cotton pads 7, aligning the ceramic cotton strips 18 on one ceramic cotton pad 7 with the slots 18 on the other ceramic cotton pad 7, and insert the ceramic cotton strips 18 into the slots 18. Then place the two ceramic cotton pads 7 between the two flange plates 5, ensuring that the two sets of ceramic cotton strips 16 on the opposite outer sides of the two ceramic cotton pads 7 correspond to the slots 1 on one side of the flange plate 5, and insert the ceramic cotton strips 17 into the corresponding slots 1. Then, pass the bolts 8 through the through holes 1 on the two flange plates 5 until the bolts are inserted. One end of bolt 8 is inserted into the inside of the threaded cylinder 11. Then, the steps of disassembling bolt 8 are repeated to make the rotating ring 10 drive the gear 12 to rotate the threaded cylinder 11 in the opposite direction, so that the threaded cylinder 11 and bolt 8 are connected and fixed. Then, by twisting the screw 14, the screw 14 is inserted into the corresponding insertion hole opened on one side wall of the limiting ring 13, thereby limiting and fixing the position of the rotating ring 10, and thus limiting and fixing the threaded cylinder 11. This avoids accidental contact that could cause the rotating ring 10 to rotate, thereby affecting the connection and fixing effect of bolt 8 between the two flange steel plates 5. It is convenient to use and more practical.
[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A heat transfer structure for reducing VOC system, comprising a TO furnace (1), a heat exchanger (2) is arranged on one side of the TO furnace (1), an air inlet (3) is arranged on one side of the TO furnace (1), an air outlet (4) is arranged on one side of the heat exchanger (2), characterized in that: The air inlet (3) and the air outlet (4) are connected with flange steel plates (5) at opposite ends, and two ceramic cotton pads (7) are arranged between the two flange steel plates (5), double-layer ceramic cotton pads (6) are arranged on the inner and outer walls of the air outlet (4) and the air inlet (3), a fixing mechanism is arranged on the outside of the air outlet (4), a plurality of bolts (8) are arranged on the outside of the air inlet (3), the bolts (8) penetrate the two flange steel plates (5) and are connected with the fixing mechanism, a plurality of through holes (I) are arranged on the flange steel plates (5) and the ceramic cotton pads (7) and are matched with the bolts (8), the fixing mechanism comprises a fixing disc (9), the fixing disc (9) is fixedly arranged on the outside of the air outlet (4), and a plurality of through holes (II) are symmetrically arranged on one side of the fixing disc (9).
2. A reduced heat transfer structure for a VOC system according to claim 1, characterized in that: The fixing mechanism further comprises a rotating ring (10), a driving groove (20) is arranged on the side wall of the circular arc part of the fixing disc (9), the rotating ring (10) is rotatably arranged in the fixing disc (9), a plurality of transmission grooves (19) are symmetrically arranged in the fixing disc (9) and are communicated with the driving groove (20) and the through holes (II), a threaded cylinder (11) is rotatably arranged in the transmission groove (19), a gear (12) is arranged on the outer wall of the threaded cylinder (11), a plurality of gear grooves (21) are arranged on the inner wall of the rotating ring (10) and are meshed with the gear (12), a limiting ring (13) is arranged on the two sides of the rotating ring (10) and is movably connected with the rotating ring (10), and a plurality of handles are symmetrically arranged on the outer wall of the rotating ring (10).
3. The reduced heat transfer structure for a VOC system of claim 2, wherein: A ring groove matched with the limiting ring (13) is symmetrically arranged on the inner wall of the driving groove (20), the limiting ring (13) is slidably connected with the inner wall of the ring groove, a screw rod (14) is threadedly connected with one side of the fixing disc (9), and a plurality of insertion holes matched with the screw rod (14) are symmetrically arranged on one side of the limiting ring (13) on the right side.
4. The reduced heat transfer structure for a VOC system of claim 1, wherein: Two groups of ceramic cotton strip groups (16) with the same center are arranged at the corresponding positions of the opposite outer side walls of the two ceramic cotton pads (7), the ceramic cotton strip group (16) is composed of a plurality of symmetrically arranged ceramic cotton strips (17), a clamping groove (I) matched with the ceramic cotton strip (17) in the two groups of ceramic cotton strip groups (16) is arranged on the opposite wall surfaces of the two flange steel plates (5), a plurality of ceramic cotton strips (18) are symmetrically arranged on the side wall of the ceramic cotton pad (7) away from the ceramic cotton strip group (16) on one side, and a plurality of clamping grooves (II) matched with the ceramic cotton strips (18) are arranged on one side of the ceramic cotton pad (7) on the other side.
5. The reduced heat transfer structure for a VOC system of claim 2, wherein: A ceramic cotton sleeve (22) is arranged in the through hole (I) and is arranged on the outside of the bolt (8), and a ceramic cotton pad (15) is arranged on the outside of one end of the bolt (8) and is located on the side of the flange steel plate (5) close to the air inlet (3).
6. A reduced heat transfer structure for a VOC system according to claim 2, wherein: The threaded cylinder (11) is rotatably connected with the fixed disc (9) through a bearing, and the flange steel plate (5) is covered with a weather-resistant layer.