A waste heat utilization environmental protection equipment

Abstract

This utility model relates to an environmental protection device for waste heat utilization, belonging to the field of waste heat recovery and utilization technology. It includes a heat exchange cylinder with a cold water heat exchange pipe inside for cold water to pass through. It also includes a scraping assembly, comprising a telescopic component and a scraper ring that conforms to the inner wall of the heat exchange cylinder. The telescopic component allows the scraper ring to move and scrape. An outer magnetic ring is sleeved on the outside of the cold water heat exchange pipe. The movement of the outer magnetic ring along the length of the cold water heat exchange pipe scrapes the outer wall of the pipe. This utility model is equipped with a scraping assembly. A controller controls the synchronous extension and retraction of a bidirectional telescopic rod, which can drive the connecting strip, connecting rod, and scraper ring to move along the inner wall of the heat exchange cylinder. This periodically scrapes and cleans the inner wall of the heat exchange cylinder, promptly removing the dirt layer formed on the cylinder wall by impurities in the exhaust gas, preventing increased thermal resistance due to dirt accumulation, ensuring the cleanliness of the inner wall of the heat exchange cylinder, and maintaining a good heat exchange environment.

Description

Technical Field

[0001] This utility model relates to the field of waste heat recovery and utilization technology, and in particular to an environmental protection device for waste heat utilization. Background Technology

[0002] In industrial production and energy conversion scenarios, the emission of high-temperature exhaust gases (such as chemical reaction exhaust gases and boiler combustion exhaust gases) is extremely common. These exhaust gases not only carry a large amount of recoverable waste heat, but direct emission will cause serious waste of heat energy and does not meet the requirements of energy conservation and emission reduction; they also often contain dust, particulate matter and other impurities, which will pollute the atmospheric environment and easily adhere to the inside of waste heat recovery equipment, affecting the normal operation of the equipment.

[0003] In traditional waste heat recovery equipment, impurities in the exhaust gas easily accumulate on the inner wall of the heat exchange cylinder and the outer wall of the cold water heat exchange tube, forming a fouling layer. This not only significantly increases thermal resistance, leading to a marked decrease in heat exchange efficiency and reducing the waste heat recovery utilization rate, but also requires staff to regularly shut down the machine for disassembly and cleaning. This is not only time-consuming and labor-intensive, increasing maintenance costs, but may also damage equipment components due to disassembly operations, shortening the equipment's lifespan. It is difficult to meet the actual needs of the industrial sector for efficient and low-maintenance waste heat utilization equipment. Therefore, to address the above problems, a waste heat utilization environmental protection equipment is proposed. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] This utility model provides an environmental protection device for waste heat utilization. By moving a scraper ring along the inner wall of the heat exchange cylinder, the inner wall of the heat exchange cylinder is scraped and cleaned regularly. This can remove the dirt layer formed on the cylinder wall by impurities in the exhaust gas in a timely manner, and avoid the increase in thermal resistance due to dirt accumulation.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution.

[0008] A waste heat utilization environmental protection device includes a heat exchange cylinder, wherein the heat exchange cylinder is provided with a cold water heat exchange pipe for cold water to pass through, and further includes:

[0009] The scraping assembly includes a telescopic component and a scraper ring that fits against the inner wall of the heat exchange cylinder. The telescopic component is fitted to enable the scraper ring to move and scrape.

[0010] An outer magnetic ring is fitted around the outside of the cold water heat exchange tube. The outer magnetic ring is used to scrape the outer wall of the cold water heat exchange tube by moving along the length of the cold water heat exchange tube.

[0011] Furthermore, the telescopic component includes;

[0012] A connecting rod is connected to the scraper ring, and the connecting rod extends to the outside of the end of the heat exchange cylinder. The outer ends of the connecting rods on both sides of the same side are connected to a connecting strip.

[0013] A bidirectional telescopic rod, the ends of which are connected to corresponding connecting strips.

[0014] Furthermore, it also includes an inner magnetic ring, which can move in contact with the inner wall of the cold water heat exchange tube, and the inner magnetic ring and the outer magnetic ring are attracted to each other magnetically.

[0015] Furthermore, the cold water heat exchange tube has two rings, and a second connecting block connects the outer magnetic ring and the scraper ring on the outer ring of the cold water heat exchange tube.

[0016] Furthermore, a first connecting block connects the outer magnetic ring on the outer ring of the cold water heat exchange tube and the outer magnetic ring on the inner ring of the cold water heat exchange tube.

[0017] Furthermore, one end of the heat exchange cylinder is connected to a water inlet pipe, the other end is connected to a drain pipe, and the heat exchange cylinder is also connected to an exhaust gas inlet / outlet pipe.

[0018] 3. Beneficial effects

[0019] Compared with existing technologies, the advantages of this utility model are:

[0020] (1) This solution is equipped with a scraping assembly. The bidirectional telescopic rod is controlled by the controller to extend and retract synchronously, which can drive the connecting strip, connecting rod and scraper ring to move along the inner wall of the heat exchange cylinder. The inner wall of the heat exchange cylinder is scraped and cleaned regularly, which can remove the dirt layer formed on the cylinder wall by impurities in the exhaust gas in time, avoid the increase of thermal resistance due to dirt accumulation, ensure the cleanliness of the inner wall of the heat exchange cylinder, and maintain a good heat exchange environment.

[0021] (2) This solution can utilize the magnetic attraction between the inner and outer magnetic rings to drive the inner magnetic ring inside the cold water heat exchange tube, thereby moving the outer magnetic ring outside the tube and achieving scraping and cleaning of the outer wall of the cold water heat exchange tube.

[0022] (3) In this scheme, the outer magnetic ring on the outer ring of the cold water heat exchange tube is connected to the scraper ring and the outer magnetic ring on the inner ring of the cold water heat exchange tube as a whole through the first connecting block and the second connecting block. This allows the outer magnetic ring to move synchronously when the scraper ring moves, cleaning the outer wall of the cold water heat exchange tube. This effectively removes impurities attached to the outer wall of the cold water heat exchange tube, preventing them from affecting the heat transfer efficiency and ensuring that the cold water heat exchange tube always maintains good thermal conductivity. This ensures that the entire equipment is in a long-term stable and efficient heat exchange state.

[0023] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit the present invention. Attached Figure Description

[0024] The above and other objects, features and advantages of the present invention will become more apparent from the more detailed description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components.

[0025] Figure 1 This is a cross-sectional structural schematic diagram of the present invention;

[0026] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 3 This is a schematic diagram of the cold water heat exchange tube and outer magnetic ring structure of this utility model;

[0028] Figure 4 This is a schematic diagram of the connection between the lower scraper ring and the outer magnetic ring in an embodiment of this utility model;

[0029] The correspondence between the labels and component names in the attached figures is as follows:

[0030] 1. Heat exchange cylinder; 2. Drain pipe; 3. Water inlet pipe; 4. Scraper assembly; 41. Bidirectional telescopic rod; 42. Scraper ring; 43. Connecting rod; 44. Connecting strip; 5. Cold water heat exchange pipe; 6. Outer magnetic ring; 7. Inner magnetic ring; 8. First connecting block; 9. Second connecting block. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. The preferred embodiments of this utility model will now be described in more detail with reference to the accompanying drawings. Although preferred embodiments of this utility model are shown in the drawings, it should be understood that this utility model can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make this utility model more thorough and complete, and to fully convey the scope of this utility model to those skilled in the art.

[0032] The technical solutions of the embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0033] Example 1

[0034] See Figures 1-4As shown, this utility model provides a waste heat utilization environmental protection device, including a heat exchange cylinder 1. One end of the heat exchange cylinder 1 is connected to a water inlet pipe 3, and the other end is connected to a drain pipe 2. The heat exchange cylinder 1 is also connected to an exhaust gas inlet and outlet pipe. The heat exchange cylinder 1 is provided with a cold water heat exchange pipe 5 for cold water to pass through. The cold water heat exchange pipe 5 has two rings, with one cold water heat exchange pipe 5 in the inner ring and no less than six cold water heat exchange pipes 5 in the outer ring. Both ends of the cold water heat exchange pipe 5 are provided with partitions. The two partitions divide the heat exchange cylinder 1 into a cold water inlet area, a heat exchange area, and a water outlet area after heat exchange. In addition, it also includes a scraping assembly 4 and an outer magnetic ring 6. The scraping assembly 4 includes a telescopic component and a scraping ring 42 that fits against the inner wall of the heat exchange cylinder 1. The sliding and telescopic component enables the scraping ring 42 to move and scrape. The outer magnetic ring 6 is sleeved on the outside of the cold water heat exchange pipe 5. The outer magnetic ring 6 scrapes the outer wall of the cold water heat exchange pipe 5 by moving along the length of the cold water heat exchange pipe 5.

[0035] Among them, see Figure 1 and Figure 2 As shown, the telescopic component includes a connecting rod 43 and a bidirectional telescopic rod 41. The bidirectional telescopic rod 41 is an electric telescopic rod. The connecting rod 43 is connected to the scraper ring 42 and extends to the outside of the end of the heat exchange cylinder 1. The outer ends of the connecting rods 43 on both sides are connected to a connecting strip 44. The end of the bidirectional telescopic rod 41 is connected to the corresponding connecting strip 44. Preferably, there are two bidirectional telescopic rods 41. The two bidirectional telescopic rods 41 are of the same specification and are synchronously extended and retracted by a controller (not shown) to ensure that the scraper rings 42 on both sides synchronously scrape the inner wall of the heat exchange cylinder 1.

[0036] In practical use, high-temperature exhaust gas is introduced into heat exchange cylinder 1, and cold water is introduced through inlet pipe 3 into cold water heat exchange pipe 5. The cold water exchanges heat with the high-temperature exhaust gas, effectively recovering heat and reducing energy waste. A filter structure can be installed on the exhaust gas discharge pipe. This filter structure can use high-efficiency filter materials, such as activated carbon filters, HEPA filters, or dedicated industrial exhaust gas filter cartridges. When the high-temperature exhaust gas passes through the exhaust gas discharge pipe, it first enters the filter structure. The filter material can accurately intercept solid impurities such as dust and particulate matter in the exhaust gas, while also adsorbing or filtering some harmful chemicals. After being treated by the filter structure, the concentration of pollutants in the exhaust gas is significantly reduced, and the content of harmful substances is effectively controlled. When it is released into the atmosphere, the degree of environmental pollution is significantly reduced, thus achieving both heat energy recovery and environmental protection.

[0037] Secondly, the bidirectional telescopic rod 41 can be activated periodically to move the connecting bar 44, which in turn moves the scraper ring 42 to scrape the inner wall of the heat exchange cylinder 1, thereby reducing the adhesion of impurities.

[0038] A sealing ring is installed at the position where the connecting rod 43 passes through the heat exchange cylinder 1. This ensures sealing while allowing the connecting rod 43 to move. The sealing ring can be made of fluororubber, with a temperature range of -20℃ to 200℃. The lip of the sealing ring can automatically fit the sealing surface with pressure changes, which reduces the risk of static leakage and reduces dynamic frictional resistance, ensuring smooth axial movement of the connecting rod 43 and preventing wear of the sealing ring or jamming of the connecting rod 43 due to excessive friction.

[0039] In addition, it includes an inner magnetic ring 7, which can move against the inner wall of the cold water heat exchange tube 5. The inner magnetic ring 7 and the outer magnetic ring 6 are magnetically attracted to each other. When it is necessary to clean the outer wall of the cold water heat exchange tube 5, the operator can first disassemble and adjust the end of the heat exchange cylinder 1, and then put the inner magnetic ring 7 into the cold water heat exchange tube 5. By using the rod that can be connected to the inner magnetic ring 7 to push the inner magnetic ring 7, the outer magnetic ring 6 can be moved to scrape the outer wall of the cold water heat exchange tube 5, thereby cleaning the outer wall of the cold water heat exchange tube 5. This can effectively remove the impurity layer that affects heat transfer, thereby quickly restoring the thermal conductivity of the cold water heat exchange tube 5 and ensuring that the entire heat exchange device maintains a high-efficiency heat exchange effect.

[0040] Example 2

[0041] See Figure 4 As shown, this embodiment differs from Embodiment 1 in that: a second connecting block 9 connects the outer magnetic ring 6 on the outer ring cold water heat exchange tube 5 and the scraper ring 42, and a first connecting block 8 connects the outer magnetic ring 6 on the outer ring cold water heat exchange tube 5 and the outer magnetic ring 6 on the inner ring cold water heat exchange tube 5. When the connecting rod 43 drives the scraper ring 42 to move, the outer magnetic ring 6 and the scraper ring 42 can be connected as a whole through the cooperation of the first connecting block 8 and the second connecting block 9, so that the outer magnetic ring 6 can move synchronously to scrape the outer wall of the cold water heat exchange tube 5.

[0042] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A waste heat utilization environmental protection device, comprising a heat exchange cylinder (1), wherein the heat exchange cylinder (1) is provided with a cold water heat exchange pipe (5) for cold water to pass through, characterized in that, Also includes: The scraping assembly (4) includes a telescopic component and a scraping ring (42) that fits against the inner wall of the heat exchange cylinder (1). The telescopic component is fitted to enable the scraping ring (42) to move and scrape. An outer magnetic ring (6) is fitted on the outside of the cold water heat exchange tube (5). The outer magnetic ring (6) is used to scrape the outer wall of the cold water heat exchange tube (5) by moving along the length of the cold water heat exchange tube (5).

2. The waste heat utilization environmental protection equipment according to claim 1, characterized in that: The telescopic component includes; A connecting rod (43) is connected to the scraper ring (42), and the connecting rod (43) extends to the outside of the end of the heat exchange cylinder (1). The outer ends of the connecting rods (43) on both sides of the same side are connected to a connecting strip (44). A bidirectional telescopic rod (41) is provided, the end of which is connected to a corresponding connecting strip (44).

3. The waste heat utilization environmental protection equipment according to claim 1, characterized in that: It also includes an inner magnetic ring (7), which can move along the inner wall of the cold water heat exchange tube (5), and the inner magnetic ring (7) and the outer magnetic ring (6) are attracted to each other magnetically.

4. The waste heat utilization environmental protection equipment according to claim 1, characterized in that: The cold water heat exchange tube (5) has two rings, and a second connecting block (9) is connected between the outer magnetic ring (6) and the scraper ring (42) on the outer ring of the cold water heat exchange tube (5).

5. The waste heat utilization environmental protection equipment according to claim 4, characterized in that: A first connecting block (8) connects the outer magnetic ring (6) on the outer ring of the cold water heat exchange tube (5) and the outer magnetic ring (6) on the inner ring of the cold water heat exchange tube (5).

6. The waste heat utilization environmental protection equipment according to claim 1, characterized in that: The heat exchange cylinder (1) has a water inlet pipe (3) connected to one end and a drain pipe (2) connected to the other end. The heat exchange cylinder (1) is also connected to an exhaust gas inlet and outlet pipe.

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