A waste heat utilization structure of high-temperature VOC gas processing equipment
By setting up a movable ring and cleaning block inside the heat exchanger body of the high-temperature VOC gas treatment equipment, the coordination of the lever and the flip plate can achieve rapid cleaning of scale on the surface of the heat exchange tube, solving the problem of scale hindering heat transfer and improving heat exchange efficiency.
Patent Information
- Application Number
- CN202420772289.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-15
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-04-15
AI Technical Summary
When the existing high-temperature VOC gas treatment equipment recovers waste heat through a heat exchanger, scale is generated on the surface of the heat exchange tube, which hinders the heat transfer between the flue gas and the fluid in the heat exchange tube, and reduces the heat exchange efficiency.
A waste heat utilization structure of a high-temperature VOC gas treatment equipment is designed. By setting a movable ring and cleaning block inside the main body of the heat exchanger, and using the cooperation of the lever and the flip plate, the scale on the surface of the heat exchange tube is quickly cleaned to ensure the efficiency of heat transfer.
The scale on the surface of the heat exchange tube is effectively cleaned, the heat transfer effect between the flue gas and the fluid in the heat exchange tube is improved, the heat exchange efficiency is improved, and the efficient and stable operation of the heat exchanger is ensured.
Smart Images
Figure CN222703336U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of VOC gas processing, in particular to a waste heat utilization structure of high-temperature VOC gas processing equipment. Background Art
[0002] Current high-temperature VOC gas treatment equipment, especially devices using thermal oxidation technology, such as regenerative thermal oxidizers (RTO) or regenerative catalytic oxidizers (RCO), can not only efficiently treat volatile organic compounds (VOCs) waste gas and convert harmful VOCs into harmless carbon dioxide (CO2) and water vapor (H2O), but also pay special attention to the recovery and reuse of the large amount of waste heat generated during the treatment process, so as to improve energy efficiency, reduce operating costs, and achieve a dual improvement in environmental and economic benefits.
[0003] Some existing high-temperature VOC gas treatment equipment transfers the heat of high-temperature flue gas directly to another fluid (such as water, heat transfer oil or air) by adding a special heat exchanger to generate hot water, steam or hot air for use in other process steps. However, since scale will form on the surface of the heat exchange tube during the use of the heat exchanger, this will hinder the heat transfer between the flue gas and the fluid in the heat exchange tube, reducing the heat exchange efficiency. Utility Model Content
[0004] The purpose of the utility model is to provide a waste heat utilization structure of a high-temperature VOC gas processing equipment to solve the problem raised in the above-mentioned background technology that when the current high-temperature VOC gas processing equipment recovers and reuses a large amount of waste heat generated by a heat exchanger, scale will be generated on the surface of the heat exchange tube during the use of the heat exchanger, which will hinder the heat transfer between the flue gas and the fluid in the heat exchange tube and reduce the heat exchange efficiency.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a waste heat utilization structure of a high-temperature VOC gas processing equipment, comprising a heat exchanger body, wherein the upper and lower ends of the heat exchanger body are respectively provided with a cold flow inlet and a cold flow outlet, the interior of the heat exchanger body is provided with heat exchange tubes respectively connected to the cold flow inlet and the cold flow outlet, the upper and lower ends of one side of the outer side of the heat exchanger body are respectively provided with a hot flow outlet and a hot flow inlet, and a movable ring is provided at the upper end of the inner side of the heat exchanger body, cleaning blocks are provided on both sides of the inner side of the movable ring, and a strip opening is opened on one side of the heat exchanger body, a closable flip plate is provided on the outside of the strip opening, and a lever is detachably installed on one side of the movable ring through the strip opening.
[0006] Preferably, guide pillars are provided on both sides of the heat exchanger body, and connecting sleeves that are movable sleeves outside the guide pillars are provided on both sides of the inner wall of the movable ring, and the corresponding side of the connecting sleeve is fixedly connected to the cleaning block through a connecting piece.
[0007] Preferably, the inner end of the lever is provided with a threaded section, and one side of the outer portion of the movable ring is provided with a threaded hole that matches the structure of the threaded section at the outer end of the lever.
[0008] Preferably, a sealing gasket is bonded and fixed to the inner side of the flap plate, and the sealing gasket is consistent with the structure of the strip opening.
[0009] Preferably, a magnetic sheet is further provided on the inner side of the top end of the flap plate, and a concave hole corresponding to the magnetic sheet is provided on the outer wall of the heat exchanger body above the strip-shaped opening.
[0010] Preferably, collecting pipes are provided on both sides of the bottom end of the heat exchanger body, and the collecting pipes are located on both sides of the cold flow outlet.
[0011] Compared with the prior art, the utility model has the following beneficial effects: the waste heat utilization structure of the high-temperature VOC gas processing equipment can clean the scale on the surface of the heat exchange tube, so that the heat transfer effect between the flue gas and the fluid in the heat exchange tube is better, and the heat exchange efficiency is improved, thereby ensuring the efficient and stable operation of the heat exchanger. The waste heat utilization structure of the high-temperature VOC gas processing equipment is provided with a movable ring at the upper end of the heat exchanger body. The two cleaning blocks provided inside the movable ring can achieve the effect of quickly cleaning the scale by friction contact with the outer wall of the heat exchange tube, and the strip opening and flip plate provided on one side of the heat exchanger body can facilitate the staff to drive the movable ring to move vertically. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a schematic diagram of the waste heat utilization structure of a high-temperature VOC gas processing equipment of the utility model;
[0013] Figure 2 This is a schematic diagram of the internal top view of a heat exchanger body of a waste heat utilization structure of a high-temperature VOC gas processing device of the utility model;
[0014] Figure 3 This is a schematic diagram of the external side view of the heat exchanger body of a waste heat utilization structure of a high-temperature VOC gas processing equipment of the utility model;
[0015] Figure 4 This is a schematic diagram of the external front view structure of a heat exchanger main body of a waste heat utilization structure of a high-temperature VOC gas processing equipment according to the utility model.
[0016] In the figure: 1. heat exchanger body; 2. cold flow inlet; 3. hot flow outlet; 4. connecting sleeve; 5. guide column; 6. heat exchange tube; 7. hot flow inlet; 8. cold flow outlet; 9. lever; 10. movable ring; 11. cleaning block; 12. collecting tube; 13. strip mouth; 14. flip plate; 15. sealing gasket; 16. magnetic sheet. DETAILED DESCRIPTION
[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0018] See also Figure 1-4The utility model provides a technical solution: a waste heat utilization structure of a high-temperature VOC gas processing equipment, comprising a heat exchanger body 1, wherein the upper and lower ends of the heat exchanger body 1 are respectively provided with a cold flow inlet 2 and a cold flow outlet 8, the interior of the heat exchanger body 1 is provided with a heat exchange tube 6 connected to the cold flow inlet 2 and the cold flow outlet 8 respectively, and the upper and lower ends of the outer side of the heat exchanger body 1 are respectively provided with a hot flow outlet 3 and a hot flow inlet 7, and a solenoid valve is installed outside the hot flow inlet 7. The heat exchanger body 1 of this structure can make the fluid flow in the heat exchange tube 6 through the cold flow inlet 2 and the cold flow outlet 8, and a large amount of waste heat generated by the high-temperature VOC gas processing equipment can be introduced into the interior of the heat exchanger body 1 through the hot flow inlet 7 to flow until it is discharged from the hot flow outlet 3 flows out, so that the heat exchanger body 1 can directly transfer the heat of the high-temperature flue gas to the fluid flowing inside the heat exchange tube 6 to achieve the effect of preheating, recovery and reuse, and a movable ring 10 is provided at the upper end of the interior of the heat exchanger body 1, and the outer edge of the movable ring 10 is slidably connected with the inner wall of the heat exchanger body 1, and cleaning blocks 11 are provided on both sides of the interior of the movable ring 10. The cleaning block 11 is an arc-shaped structure and its inner wall is in contact with the outer wall of the heat exchange tube 6, and the inner wall fan of the cleaning block 11 is also bonded and fixed with a silicone rubber sponge, which has excellent weather resistance, electrical insulation and chemical stability, and is suitable for applications under extreme temperature conditions, and a strip opening 13 is opened on one side of the heat exchanger body 1, and a closable flap plate is provided on the outside of the strip opening 13 14, the bottom end of the flip plate 14 is movably connected to the outer wall of the bottom end of the heat exchanger body 1 through a rotating shaft, and a lever 9 is detachably installed on one side of the movable ring 10 through a strip opening 13. In this structure, when a large amount of scale is generated on the surface of the heat exchange tube 6 after the heat exchanger body 1 has been used for a long time, the flip plate 14 can be opened in the strip opening 13 and the lever 9 can be installed on the movable ring 10. The lever 9 can move vertically inside the heat exchanger body 1 by driving the movable ring 10. When the movable ring 10 moves vertically, it can drive the two cleaning blocks 11 to rub against the outer wall of the heat exchange tube 6, thereby cleaning the scale on the outer wall of the heat exchange tube 6, avoiding the scale from hindering the heat transfer effect between the flue gas and the fluid in the heat exchange tube 6, thereby improving the heat exchange efficiency. The method of cleaning the scale on the outer wall of the heat exchange tube 6 is more convenient and quick, ensuring the efficient and stable operation of the heat exchanger main body 1. Guide pillars 5 are provided on both sides of the interior of the heat exchanger main body 1. The upper and lower ends of the guide pillars 5 are connected to the upper and lower inner walls of the heat exchanger main body 1 by welding. The two sides of the inner wall of the movable ring 10 are welded and fixed with a sleeve 4 that is movable and arranged on the outside of the guide pillar 5, and the corresponding side of the sleeve 4 is fixedly connected to the cleaning block 11 through a connecting piece. The movable ring 10 of this structure will drive the sleeve 4 to slide along the outside of the guide pillar 5 when it moves vertically. When the sleeve 4 slides, it can synchronously drive the cleaning block 11 to move vertically, so as to improve the stability of the cleaning block 11 when cleaning the scale through vertical movement. The inner end of the lever 9 is provided with a threaded section at one end.A threaded hole that matches the threaded section structure of the outer end of the lever 9 is provided on one side of the outer side of the movable ring 10. The lever 9 of this structure can be rotated into the threaded hole on the outer wall of the movable ring 10 through the threaded section at the inner end, so that the lever 9 can be quickly connected or disassembled with the movable ring 10, which is convenient to use. A sealing gasket 15 is bonded and fixed to the inner side of the flap plate 14, and the sealing gasket 15 matches the structure of the strip opening 13. When the flap plate 14 of this structure is closed, it can be squeezed into the strip opening 13 through the sealing gasket 15 to ensure sealing and avoid heat leakage when the heat exchanger body 1 is in use. The inner side of the top of the flap plate 14 A magnetic sheet 16 is also provided, and a concave hole corresponding to the magnetic sheet 16 is provided on the outer wall of the heat exchanger body 1 above the strip opening 13. When the flap 14 of this structure is closed, the magnetic sheet 16 can be embedded in the concave hole on the outer wall of the heat exchanger body 1 for adsorption and fixation, further ensuring the stability and sealing of the flap 14 when it is closed. Collection pipes 12 are provided on both sides of the bottom of the heat exchanger body 1. A valve body can be installed outside the collection pipe 12 to control the closing. The collection pipe 12 is located on both sides of the cold flow outlet 8. The collection pipe 12 of this structure can collect the scale cleaned by the cleaning block 11.
[0019] Working principle: When using the waste heat utilization structure of the high-temperature VOC gas processing equipment, first, the heat exchanger body 1 allows the fluid to flow into the heat exchange tube 6 through the cold flow inlet 2, and the fluid can flow out from the cold flow outlet 8. At the same time, a large amount of waste heat generated by the high-temperature VOC gas processing equipment can be introduced into the interior of the heat exchanger body 1 through the hot flow inlet 7 through the fan. When the high-temperature heat flows inside the heat exchanger body 1, the heat can be directly transferred to the fluid inside the heat exchange tube 6, and the high-temperature heat will flow out from the hot flow outlet 3 simultaneously. When a large amount of scale is generated on the surface of the heat exchange tube 6 after the heat exchanger body 1 has been used for a long time, the solenoid valve outside the hot flow inlet 7 is started to suspend the operation of the heat exchanger body 1, and then the flip plate 14 is opened in the strip mouth 13 and the lever 9 is installed on the movable ring 10. At this time, pull the lever 9 downward, and the lever 9 will drive the movable ring 10 The heat exchanger body 1 is vertically movable inside, and the movable ring 10 will drive the sleeve 4 to slide along the outside of the guide column 5 when the sleeve 4 moves vertically. When the sleeve 4 slides, it can synchronously drive the two cleaning blocks 11 to rub against the outer wall of the heat exchange tube 6 to clean the scale on the outer wall of the heat exchange tube 6. At this time, the valve body on the collecting tube 12 is opened, and the scale cleaned by the cleaning block 11 will drip into the bottom end of the inside of the heat exchanger body 1 and flow out from the collecting tube 12 for collection. When the scale on the outer wall of the heat exchange tube 6 is cleaned, first remove the lever 9 from the movable ring 10, and then close the flap plate 14 to squeeze the sealing gasket 15 into the strip opening 13. When the flap plate 14 is closed, the magnetic sheet 16 can also be embedded in the recess on the outer wall of the heat exchanger body 1 for adsorption and fixation. After the flap plate 14 is closed, the heat exchanger body 1 can be used again, thereby completing a series of work.
[0020] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.
Claims
1. A waste heat utilization structure of a high-temperature VOC gas processing device, comprising a heat exchanger body (1), characterized in that: The upper and lower ends of the heat exchanger body (1) are respectively provided with a cold flow inlet (2) and a cold flow outlet (8); the interior of the heat exchanger body (1) is provided with heat exchange tubes (6) respectively connected to the cold flow inlet (2) and the cold flow outlet (8); the upper and lower ends of the exterior side of the heat exchanger body (1) are respectively provided with a hot flow outlet (3) and a hot flow inlet (7); a movable ring (10) is provided at the upper end of the interior of the heat exchanger body (1); cleaning blocks (11) are provided on both sides of the interior of the movable ring (10); a strip opening (13) is opened on one side of the heat exchanger body (1); a closable flap plate (14) is provided on the exterior of the strip opening (13); and a lever (9) is detachably mounted on one side of the movable ring (10) through the strip opening (13).
2. The waste heat utilization structure of high-temperature VOC gas processing equipment according to claim 1 is characterized in that: Guide pillars (5) are provided on both sides of the interior of the heat exchanger body (1), and connecting sleeves (4) are provided on both sides of the inner wall of the movable ring (10) and are movablely sleeved outside the guide pillars (5), and the corresponding side of the connecting sleeve (4) is fixedly connected to the cleaning block (11) via a connecting piece.
3. The waste heat utilization structure of high-temperature VOC gas processing equipment according to claim 1 is characterized in that: The inner end of the lever (9) is provided with a threaded section, and one side of the outside of the movable ring (10) is provided with a threaded hole that matches the structure of the threaded section at the outer end of the lever (9).
4. The waste heat utilization structure of high-temperature VOC gas processing equipment according to claim 1 is characterized in that: A sealing gasket (15) is bonded and fixed to the inner side of the flap plate (14), and the sealing gasket (15) is consistent with the structure of the strip-shaped opening (13).
5. The waste heat utilization structure of high-temperature VOC gas processing equipment according to claim 1 is characterized in that: A magnetic sheet (16) is also provided on the inner side of the top end of the flap plate (14), and a concave hole corresponding to the magnetic sheet (16) is provided on the outer wall of the heat exchanger body (1) at a position above the strip-shaped opening (13).
6. The waste heat utilization structure of high-temperature VOC gas processing equipment according to claim 1, characterized in that: Collecting pipes (12) are provided on both sides of the bottom end of the heat exchanger body (1), and the collecting pipes (12) are located on both sides of the cold flow outlet (8).