A waste gas purification device with waste heat recovery function
Patent Information
- Application Number
- CN202620044896.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-14
- Publication Date
- 2026-09-15
- Estimated Expiration
- 2036-01-14
AI Technical Summary
[0004]现有技术中的进气管道与换热器之间的连接结构复杂,常见的连接方式多采用焊接或通过多个螺栓固定,拆装过程繁琐、耗时耗力,不便于用户对进气管道进行清理,因此亟需一种便于清理进气管道的具有余热回收功能的废气净化装置
[0012] The beneficial effects of this utility model are as follows: by setting up the exhaust gas purifier and heat exchanger, the exhaust gas can be purified and waste heat can be recovered. By setting up the flange mounting assembly, the intake pipe and the heat exchanger can be quickly connected. This structure does not require complicated tools. Only a few screws need to be removed to disassemble the intake pipe for cleaning and maintenance, which simplifies the operation process and makes it easier for users to maintain it.
Smart Images

Figure CN224756545U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of waste gas purification devices, and in particular to a waste gas purification device with waste heat recovery function. Background Technology
[0002] In waste gas treatment processes, purification devices with waste heat recovery capabilities have become an important development direction for industrial waste gas treatment. These devices typically include waste gas inlet pipes, heat exchangers, purification units, and exhaust systems. The heat exchanger is the core component for waste heat recovery, capable of recovering the high-temperature heat from the waste gas and converting it into usable thermal energy, thereby achieving energy conservation and emission reduction.
[0003] In practical applications, dust, oil, or other pollutants in the exhaust gas can easily accumulate in the intake pipes, leading to a decrease in heat exchange efficiency. Therefore, it is crucial to regularly clean and maintain the connecting pipes at the front end of the heat exchanger.
[0004] The connection structure between the air intake pipe and the heat exchanger in the existing technology is complex. The common connection methods are welding or fixing with multiple bolts. The disassembly and assembly process is cumbersome, time-consuming and labor-intensive, and it is inconvenient for users to clean the air intake pipe. Therefore, there is an urgent need for a waste gas purification device with waste heat recovery function that is easy to clean the air intake pipe. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a waste gas purification device with waste heat recovery function.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: A waste gas purification device with waste heat recovery function includes a waste gas purifier. A heat exchanger is installed on one side of the waste gas purifier, and an air inlet pipe is assembled on the heat exchanger via a flange mounting assembly. The flange mounting assembly includes a sub-flange and a mother flange. A movable ring is provided on one side of the sub-flange. Multiple locking pins passing through the sub-flange and the mother flange are fixedly installed on the movable ring. Each locking pin has a locking cavity. A locking element for locking the locking cavity is provided on one side of the sub-flange.
[0007] In addition, a preferred configuration is that a sub-flange is fixedly installed on the heat exchanger and a mother flange is fixedly installed on the air inlet pipe.
[0008] Furthermore, in a preferred configuration, the sub-flange has a sub-through hole, the mother flange has a mother through hole, and both the sub-through hole and the mother through hole are adapted to the locking pin.
[0009] In addition, a preferred structure is that a movable ring is fitted onto the air intake pipe, and the retaining pins are all fixedly mounted on the movable ring.
[0010] In addition, a preferred structure is that locking elements are installed on both sides of the heat exchanger behind the sub-flange, and the locking elements are adapted to be locked in the locking cavity.
[0011] In addition, a preferred structure is that both ends of the locking member are provided with fixing members, each fixing member has a screw hole, and the locking members on both sides are fixedly installed by screws.
[0012] The beneficial effects of this utility model are as follows: by setting up the exhaust gas purifier and heat exchanger, the exhaust gas can be purified and waste heat can be recovered. By setting up the flange mounting assembly, the intake pipe and the heat exchanger can be quickly connected. This structure does not require complicated tools. Only a few screws need to be removed to disassemble the intake pipe for cleaning and maintenance, which simplifies the operation process and makes it easier for users to maintain it. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of a waste gas purification device with waste heat recovery function proposed in this utility model. Figure 2 for Figure 1 Enlarged detail of the flange mounting assembly; Figure 3 This is an exploded structural diagram of the air intake pipe and the movable ring proposed in this utility model; Figure 4 This is a schematic diagram of the heat exchanger and locking component proposed in this utility model; Figure 5 for Figure 4 A schematic diagram of the structure after the locking components are concealed; Figure 6 This is an exploded view of the locking components proposed in this utility model; Figure 7 for Figure 6 Enlarged detail of the fastener in the middle.
[0014] In the diagram: 1. Exhaust gas purifier, 2. Heat exchanger, 21. Sub-flange, 22. Sub-through hole, 3. Inlet pipe, 31. Female flange, 32. Female through hole, 4. Locking component, 41. Fixing component, 411. Screw hole, 42. Screw, 5. Moving ring, 51. Locking post, 52. Locking cavity. Detailed Implementation
[0015] 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.
[0016] Reference Figure 1-7A waste gas purification device with waste heat recovery function includes a waste gas purifier 1, a heat exchanger 2 installed on one side of the waste gas purifier 1, and an air inlet pipe 3 mounted on the heat exchanger 2 via a flange mounting assembly. The flange mounting assembly includes a sub-flange 21 and a female flange 31. A movable ring 5 is provided on one side of the sub-flange 21, and multiple locking pins 51 passing through the sub-flange 21 and the female flange 31 are fixedly installed on the movable ring 5. Each locking pin 51 has a locking cavity 52, and a locking element 4 for locking the locking cavity 52 is provided on one side of the sub-flange 21.
[0017] The heat exchanger 2 is fixedly equipped with a sub-flange 21, and the air inlet pipe 3 is fixedly equipped with a female flange 31. The sub-flange 21 has a sub-through hole 22, and the female flange 31 has a female through hole 32. Both the sub-through hole 22 and the female through hole 32 are adapted to the locking pin 51.
[0018] The intake pipe 3 is fitted with a movable ring 5, and the locking pins 51 are all fixedly mounted on the movable ring 5. Thus, simply pushing the movable ring 5 to move will cause all the locking pins 51 to move synchronously.
[0019] In this heat exchanger 2, locking components 4 are installed on both sides behind the sub-flange 21, and the locking components 4 are adapted to be locked in the locking cavity 52. Through the adaptation and locking between the locking components 4 on both sides and the locking cavity 52, the locking post 51 can be fixed, and thus the locking post 51 can be used to achieve a fixed connection between the sub-flange 21 and the mother flange 31.
[0020] The locking member 4 has a fixing member 41 at both ends, and each fixing member 41 has a screw hole 411. The locking members 4 on both sides are fixedly installed by screws 42.
[0021] In this embodiment, a heat exchanger 2 is installed on one side of the exhaust gas purifier 1. When the device is working, exhaust gas enters the heat exchanger 2 from the inlet pipe 3 for heat exchange, and then enters the exhaust gas purifier 1 for purification. It is worth noting that the above-mentioned technical structure, linkage scheme and structural principle are all prior art, and do not fall under the technical problem of easy disassembly and cleaning of the inlet pipe 3 that needs to be solved in this technical solution, so they will not be described in detail.
[0022] Furthermore, when it is necessary to assemble the intake pipe 3 onto the heat exchanger 2, simply align the female flange 31 with the female flange 21. Then, push the movable ring 5 to pass the retaining pin 51 on the movable ring 5 through the female through hole 32 and the female through hole 22 in sequence.
[0023] Next, install the locking parts 4 on both sides to secure them within the locking cavities 52. Finally, simply engage the screws 42 in the screw holes 411 to secure the locking parts 4 on both sides, thereby securing the intake pipe 3.
[0024] Furthermore, when it is necessary to disassemble and clean the intake pipe 3, simply remove the screws 42, then remove the locking parts 4 on both sides, and finally move the movable ring 5 outward to disassemble the intake pipe 3, thus making it convenient for users to clean the intake pipe 3.
[0025] In this utility model, the exhaust gas purifier 1 and heat exchanger 2 can be set up to purify the exhaust gas and recover waste heat. The flange mounting assembly can be set up to quickly connect the air inlet pipe 3 and the heat exchanger 2. This structure does not require complicated tools. Only a few screws 42 need to be removed to remove the air inlet pipe 3 for cleaning and maintenance, which simplifies the operation process and makes it easier for users to maintain it.
[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A waste gas purification device with waste heat recovery function, comprising a waste gas purifier (1), characterized in that, A heat exchanger (2) is installed on one side of the exhaust gas purifier (1), and an air inlet pipe (3) is mounted on the heat exchanger (2) via a flange mounting assembly. The flange mounting assembly includes a sub-flange (21) and a mother flange (31). A movable ring (5) is provided on one side of the sub-flange (21). Multiple locking pins (51) are fixedly provided on the movable ring (5) and pass through the sub-flange (21) and the mother flange (31). Each locking pin (51) has a locking cavity (52). A locking element (4) for locking the locking cavity (52) is provided on one side of the sub-flange (21). A sub-flange (21) is fixedly installed on the heat exchanger (2), and a mother flange (31) is fixedly installed on the air inlet pipe (3). The sub-flange (21) is provided with a sub-through hole (22), and the mother flange (31) is provided with a mother through hole (32). Both the sub-through hole (22) and the mother through hole (32) are adapted to the locking pin (51). The heat exchanger (2) is equipped with locking parts (4) on both sides behind the sub-flange (21), and the locking parts (4) are adapted to be locked in the locking cavity (52); Both ends of the locking member (4) are provided with fixing members (41), and screw holes (411) are provided on the fixing members (41). The locking members (4) on both sides are fixedly installed by screws (42).
2. The waste gas purification device with waste heat recovery function according to claim 1, characterized in that, The intake pipe (3) is fitted with a movable ring (5), and the locking pins (51) are all fixedly installed on the movable ring (5).