Building waste gas heat energy recovery device with purification function

Abstract

This utility model proposes a building exhaust gas heat energy recovery device with purification function, comprising: an exhaust gas heat energy recovery device and a purification mechanism. The purification mechanism is disposed inside the exhaust gas heat energy recovery device and includes a limiting frame, a mounting frame, a filter screen, electrodes, copper wires, a busbar, and mounting components. The limiting frame is disposed on the inner wall of the exhaust gas heat energy recovery device, the mounting frame is disposed inside the exhaust gas heat energy recovery device, the filter screen is disposed on the inner wall of the mounting frame, and the electrodes are disposed inside the exhaust gas heat energy recovery device. This utility model's building exhaust gas heat energy recovery device with purification function achieves dual purification treatment of building exhaust gas through the setting of the purification mechanism. Firstly, it uses an electric field region to cause ionization, adsorption, or condensation of particulate matter and harmful gas molecules in the exhaust gas for preliminary purification. Secondly, it utilizes a corrugated filter screen to effectively intercept smaller particulate matter in the exhaust gas, further ensuring the purification effect and significantly improving the quality of exhaust gas purification.

Description

Technical Field

[0001] This utility model relates to the technical field of building exhaust gas, and in particular to a building exhaust gas heat recovery device with purification function. Background Technology

[0002] Construction exhaust gas is a gas containing a large amount of heat and pollutants generated during the construction process. If this exhaust gas is directly discharged into the atmosphere, it will not only waste heat energy, but also cause serious pollution to the environment and affect air quality. Therefore, construction exhaust gas heat recovery devices are used to treat construction exhaust gas in order to recover and reuse heat energy and reduce pollutant emissions, thus ensuring environmental quality.

[0003] When using building exhaust heat recovery devices to treat building exhaust gases, traditional heat recovery devices mostly focus only on heat recovery and neglect the purification of pollutants in the exhaust gas. As a result, the treated exhaust gas may still contain a certain amount of pollutants, and direct discharge will still have an adverse impact on the environment. In addition, the purification effect of some heat recovery devices with purification functions is often unsatisfactory and it is difficult to achieve the ideal purification standard. Therefore, most of them adopt a single filter purification method. When faced with complex building exhaust gases, it is difficult to comprehensively and effectively intercept and treat pollutants of different particle sizes and properties. Moreover, the load is large and it is difficult to maintain a stable purification effect for a long time. Utility Model Content

[0004] This utility model aims to at least partially solve one of the technical problems in the above-mentioned technologies.

[0005] Therefore, this utility model provides a heat recovery device for building exhaust gas with purification function. Through the setting of the purification mechanism, it achieves dual purification treatment of building exhaust gas. First, it uses an electric field area to cause particulate matter and harmful gas molecules in the exhaust gas to undergo processes such as ionization, adsorption or coagulation for preliminary purification. Second, it uses a corrugated filter to effectively intercept smaller particulate matter in the exhaust gas, further ensuring the purification effect and significantly improving the quality of exhaust gas purification. At the same time, the filter is set in the direction of the exhaust box inside the heat exchange box, which can effectively avoid the heat exchange efficiency being affected by excessive impurities on the filter, ensuring the stability and efficiency of the heat recovery process. Moreover, the installation components on the purification mechanism make the installation and removal of the filter more convenient. No special tools are required, and operators can quickly complete the replacement and cleaning of the filter, which not only saves time and labor costs.

[0006] To achieve the above objectives, the first aspect of this utility model proposes a building exhaust gas heat energy recovery device with purification function, comprising: an exhaust gas heat energy recovery device and a purification mechanism. The purification mechanism is disposed inside the exhaust gas heat energy recovery device and includes a limiting frame, a mounting frame, a filter screen, an electrode, a copper wire, a busbar, and an installation assembly. The limiting frame is disposed on the inner wall of the exhaust gas heat energy recovery device, the mounting frame is disposed inside the exhaust gas heat energy recovery device, the filter screen is disposed on the inner wall of the mounting frame, the electrode is disposed inside the exhaust gas heat energy recovery device, and one end of the copper wire is connected to the input end of the electrode, the busbar is connected to the other end of the copper wire, and the installation assembly is disposed on the outer wall of the mounting frame.

[0007] In addition, the building exhaust gas heat energy recovery device with purification function proposed above according to this utility model may also have the following additional technical features:

[0008] Specifically, the mounting components include a buckle, a spring, a locking block, and a limiting post. The buckle is provided with a locking groove on the outer wall of the limiting frame. The spring is located inside the locking groove, with one end of the spring connected to the limiting frame. The locking block is connected to the other end of the spring. The limiting post is located inside the spring, with one end of the limiting post connected to the limiting frame and the other end of the limiting post connected to the locking block.

[0009] Specifically, a protective assembly is provided on the outer wall of the waste gas heat energy recovery unit. The protective assembly includes a protective cover, fixing screws, a protective net, a mounting groove, and a metal mesh. The protective cover is installed on the outer wall of the waste gas heat energy recovery unit, the fixing screws are installed on the outer wall of the protective cover, and the fixing screws pass through the protective cover and are connected to the waste gas heat energy recovery unit. The protective net is installed on the outer wall of the protective cover, and a mounting groove is opened on the inner wall of the protective cover. The metal mesh is installed inside the mounting groove.

[0010] Specifically, the waste gas heat recovery unit includes a heat exchange box, an air inlet box, an air inlet fan, an air outlet box, an air outlet fan, a water tank, a heat exchange circulation pipe, a circulating water pump, an inlet water pipe, an inlet water pump, and an outlet water pipe. The air inlet box is located on one side of the heat exchange box, the air inlet fan is located inside the air inlet box, the air outlet box is located on the other side of the heat exchange box, the air outlet fan is located inside the air outlet box, the water tank is located on the bottom wall of the heat exchange box, the heat exchange circulation pipe is located inside the heat exchange box, and both ends of the heat exchange circulation pipe are connected to the water tank, the circulating water pump is located on the outer wall of the heat exchange circulation pipe, one end of the inlet water pipe is connected to the water tank, the inlet water pump is located on the outer wall of the inlet water pipe, and one end of the outlet water pipe is connected to the water tank.

[0011] Specifically, the inner wall of the heat exchange box is equipped with an insulation layer.

[0012] Specifically, a first manual valve is installed on the outer wall of the heat exchange circulation pipe.

[0013] Specifically, a second manual valve is installed on the outer wall of the water inlet pipe.

[0014] Specifically, a thermometer is installed on the outer wall of the water tank.

[0015] Compared with existing technologies, this utility model provides a heat energy recovery device for building exhaust gas with purification function. Through the setting of the purification mechanism, it achieves dual purification treatment of building exhaust gas. First, it uses an electric field area to cause particulate matter and harmful gas molecules in the exhaust gas to undergo processes such as ionization, adsorption, or coagulation for preliminary purification. Second, it uses a corrugated filter to effectively intercept smaller particulate matter in the exhaust gas, further ensuring the purification effect and significantly improving the quality of exhaust gas purification. At the same time, the filter is set in the direction of the exhaust box inside the heat exchange box, which can effectively avoid the heat exchange efficiency affected by excessive impurities on the filter, ensuring the stability and high efficiency of the heat energy recovery process. Moreover, the installation components on the purification mechanism make the installation and removal of the filter more convenient, without the need for professional tools. Operators can quickly complete the replacement and cleaning of the filter, which not only saves time and labor costs.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0018] Figure 1 This is a schematic diagram of a building exhaust heat energy recovery device with purification function according to an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the internal structure of a building exhaust heat energy recovery device with purification function according to an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the purification mechanism of a building exhaust heat energy recovery device with purification function according to an embodiment of the present invention.

[0021] Figure 4 This is a schematic diagram of the installation assembly structure of a building exhaust heat energy recovery device with purification function according to an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the protective component of a building exhaust heat energy recovery device with purification function according to an embodiment of the present invention.

[0023] Attached Figure Reference numerals: 1. Waste gas heat recovery unit; 11. Heat exchange box; 12. Inlet box; 13. Inlet fan; 14. Outlet box; 15. Outlet fan; 16. Water tank; 17. Heat exchange circulation pipe; 18. Circulating water pump; 19. Inlet pipe; 20. Inlet water pump; 21. Outlet pipe; 2. Purification mechanism; 201. Limiting frame; 202. Mounting frame; 203. Filter screen; 204. Electrode; 205. Copper wire; 206. Manifold; 3. Mounting assembly; 31. Buckle; 32. Slot; 33. Spring; 34. Block; 35. Limiting post; 4. Protective assembly; 41. Protective cover; 42. Fixing screw; 43. Protective net; 44. Mounting groove; 45. Metal mesh; 5. Insulation layer; 6. First manual valve; 7. Second manual valve; 8. Thermometer. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0025] The following description, with reference to the accompanying drawings, describes an embodiment of the present invention: a heat recovery device for building exhaust gas with purification function.

[0026] like Figures 1-5 As shown in the figure, a building exhaust heat energy recovery device with purification function according to an embodiment of the present utility model includes: exhaust heat energy recovery device 1 and purification mechanism 2.

[0027] The purification mechanism 2 is located inside the waste gas heat recovery unit 1. The purification mechanism 2 includes a limiting frame 201, a mounting frame 202, a filter screen 203, an electrode 204, a copper wire 205, a busbar 206, and a mounting assembly 3.

[0028] The limiting frame 201 is set on the inner wall of the waste gas heat energy recovery unit 1, the mounting frame 202 is set inside the waste gas heat energy recovery unit 1, the filter screen 203 is set on the inner wall of the mounting frame 202, the electrode 204 is set inside the waste gas heat energy recovery unit 1, and one end of the copper wire 205 is connected to the input end of the electrode 204, the busbar 206 is connected to the other end of the copper wire 205, and the mounting assembly 3 is set on the outer wall of the mounting frame 202.

[0029] It should be noted that the filter screen 203 adopts a corrugated structure. This design can increase the contact area between the filter screen 203 and the exhaust gas, improve the filtration efficiency, and at the same time, the corrugated filter screen 203 can effectively reduce airflow resistance, ensuring that the exhaust gas can pass through the filter screen 203 smoothly for purification. Multiple electrodes 204 are connected to the busbar 206 through multiple corresponding copper wires 205 to form a complete circuit system, providing stable power support for the purification mechanism 2, ensuring that the electrodes 204 can work normally, generate the required electric field or ion flow, and efficiently purify the harmful substances in the exhaust gas.

[0030] Specifically, when the waste gas heat recovery unit 1 recovers heat energy from the building waste gas, the waste gas first passes through the intake box 12 and enters the heat exchange box 11 under the action of the intake fan 13. After entering the heat exchange box 11, the waste gas undergoes sufficient heat exchange with the heat exchange circulation pipe 17. At this time, the water in the water tank 16 flows along the heat exchange circulation pipe 17 under the action of the circulating water pump 18, absorbing heat from the waste gas and raising the water temperature.

[0031] During the heat exchange process, the exhaust gas first enters the electric field region formed by electrode 204, copper wire 205, and busbar 206. Within this electric field region, electrode 204 is connected to busbar 206 via copper wire 205, forming a stable electric field. When the exhaust gas passes through this electric field, particulate matter and harmful gas molecules within it are acted upon by the electric field force, undergoing processes such as ionization, adsorption, or condensation, thereby achieving preliminary purification of the exhaust gas. Simultaneously, the filter screen 203 adopts a corrugated structure, and its unique shape increases the contact area with the exhaust gas, not only improving filtration efficiency but also effectively intercepting larger particulate matter in the exhaust gas, further ensuring the purification effect of the exhaust gas.

[0032] After dual purification by the electric field zone and filter 203, most of the harmful substances in the exhaust gas have been removed. At this point, the exhaust gas continues to flow, passing through the exhaust box 14 and being discharged from the exhaust heat recovery unit 1 by the exhaust fan 15. The water that has absorbed the heat from the exhaust gas is stored in the water tank 16, realizing the reuse of heat energy.

[0033] Meanwhile, the filter screen 203 is located in the direction of the air outlet box 14 inside the heat exchange box 11, which can effectively prevent the heat exchange efficiency from being affected by too many impurities accumulating on the filter screen 203, and ensure the stability and efficiency of the heat recovery process.

[0034] In one embodiment of this application, such as Figure 4 As shown, the mounting component 3 includes a snap fastener 31, a spring 33, a locking block 34, and a limiting post 35.

[0035] The buckle 31 is provided on the outer wall of the limiting frame 201 with a slot 32. The spring 33 is provided inside the slot 32, and one end of the spring 33 is connected to the limiting frame 201. The locking block 34 is connected to the other end of the spring 33. The limiting post 35 is provided inside the spring 33, and one end of the limiting post 35 is connected to the limiting frame 201. The other end of the limiting post 35 is connected to the locking block 34.

[0036] Specifically, when the filter 203 needs to be installed, simply align the buckle 31 on the mounting frame 202 with the corresponding slot 32 and press firmly. When the buckle 31 contacts the locking block 34 in the slot 32, due to the curvature of the outer wall of the locking block 34, the locking block 34 will retract towards the spring 33 upon contact. After the buckle 31 is fully inserted into the slot 32, the locking block 34 pops out under the elastic force of the spring 33, tightly engaging with the buckle 31, thereby firmly fixing the mounting frame 202 onto the limiting frame 201. At the same time, the limiting post 35 restricts the position of the spring 33, preventing the spring 33 from shifting during compression and extension, ensuring the stability and reliability of the mounting assembly 3. This installation method is simple to operate and requires no complicated tools.

[0037] When it is necessary to disassemble the filter screen 203, simply pull the mounting frame 202 outward. At this time, the buckle 31 will apply an outward force to the locking block 34, causing the locking block 34 to retract towards the spring 33 again. After the buckle 31 is completely disengaged from the locking groove 32, the mounting frame 202 can be removed from the limiting frame 201. This detachable design facilitates the regular cleaning and replacement of the filter screen 203, ensuring that the purification mechanism 2 always maintains a good purification effect.

[0038] In one embodiment of this application, such as Figure 5 As shown, a protective component 4 is installed on the outer wall of the waste gas heat recovery unit 1.

[0039] Protective component 4 includes a protective cover 41, fixing screws 42, protective mesh 43, mounting groove 44, and metal mesh 45.

[0040] The protective cover 41 is installed on the outer wall of the waste gas heat recovery unit 1. The fixing screw 42 is installed on the outer wall of the protective cover 41, and the fixing screw 42 passes through the protective cover 41 and is connected to the waste gas heat recovery unit 1. The protective net 43 is installed on the outer wall of the protective cover 41. The inner wall of the protective cover 41 is provided with an installation groove 44, and the metal mesh 45 is installed inside the installation groove 44.

[0041] Specifically, the protective cover 41 is securely installed on the outer wall of the waste gas heat recovery unit 1 by fixing screws 42. This installation method is both firm and easy to disassemble, facilitating subsequent maintenance and repair. The protective net 43 is set on the outer wall of the protective cover 41. Its main function is to prevent large particles of debris from entering the interior of the waste gas heat recovery unit 1, avoiding damage to internal components such as the intake fan 13. It can also reduce the impact of debris accumulation on heat recovery efficiency. The mounting groove 44 opened on the inner wall of the protective cover 41 is used to install the metal mesh 45. The metal mesh 45 has fine pores, which can further block small particles and dust from entering the equipment, reducing the burden on the filter 203 and the electrode 204, and extending their service life. Moreover, the metal mesh 45 is installed in the mounting groove 44, making installation and replacement convenient. When a component in the protective assembly 4 is damaged or needs cleaning, the protective cover 41 can be easily removed by disassembling the fixing screws 42, and then the protective net 43 and the metal mesh 45 can be replaced or cleaned, greatly improving the maintainability of the equipment and reducing the operating cost.

[0042] In one embodiment of this application, such as Figure 2 As shown, the waste gas heat recovery unit 1 includes a heat exchange box 11, an air inlet box 12, an air inlet fan 13, an air outlet box 14, an air outlet fan 15, a water tank 16, a heat exchange circulation pipe 17, a circulating water pump 18, a water inlet pipe 19, a water inlet pump 20, and a water outlet pipe 21.

[0043] An air inlet box 12 is located on one side of the heat exchange box 11, an air intake fan 13 is located inside the air inlet box 12, an air outlet box 14 is located on the other side of the heat exchange box 11, an air outlet fan 15 is located inside the air outlet box 14, a water tank 16 is located on the bottom wall of the heat exchange box 11, a heat exchange circulation pipe 17 is located inside the heat exchange box 11 and both ends of the heat exchange circulation pipe 17 are connected to the water tank 16, a circulating water pump 18 is located on the outer wall of the heat exchange circulation pipe 17, one end of the water inlet pipe 19 is connected to the water tank 16, a water inlet pump 20 is located on the outer wall of the water inlet pipe 19, and one end of the water outlet pipe 21 is connected to the water tank 16.

[0044] Specifically, the inlet box 12 and outlet box 14 are located on both sides of the heat exchange box 11, forming a channel for the flow of exhaust gas. The intake fan 13 is installed inside the inlet box 12. When started, it can generate a strong suction to quickly draw the building exhaust gas into the heat exchange box 11. The outlet fan 15 in the outlet box 14 is responsible for discharging the exhaust gas after heat recovery and purification outside the equipment. The water tank 16, as the core component for heat storage and circulation, is firmly set on the bottom wall of the heat exchange box 11. It stores a certain amount of water to absorb heat from the exhaust gas. The heat exchange circulation pipe 17 meanders inside the heat exchange box 11, with both ends connected to the water tank 16, forming a closed circulation system. The circulating water pump 18 is installed on the heat exchange circulation pipe 17 and is responsible for driving the water in the water tank 16 to flow along the heat exchange circulation pipe 17, thereby interacting with the exhaust gas. Sufficient heat exchange is achieved through inlet pipe 19 and outlet pipe 21, which are connected to water tank 16. Inlet water pump 20 is installed on inlet pipe 19 to replenish fresh water to water tank 16, ensuring continuous heat recovery. When the equipment is running, building exhaust gas enters heat exchange box 11 through inlet box 12 and inlet fan 13, where it exchanges heat with water in heat exchange circulation pipe 17. The heat in the exhaust gas is absorbed by the water, raising the water temperature. At the same time, purification mechanism 2 purifies the exhaust gas, removing harmful substances. After heat exchange and purification, the exhaust gas is discharged from the equipment through outlet box 14 and outlet fan 15. The water that has absorbed heat is stored in water tank 16 and can be drawn out through outlet pipe 21 for use in other situations requiring heat energy, thus realizing the reuse of heat energy. This not only improves energy utilization efficiency but also reduces environmental pollution.

[0045] In one embodiment of this application, such as Figure 2 As shown, the inner wall of the heat exchange box 11 is provided with a heat insulation layer 5.

[0046] Understandably, the insulation layer 5 is made of a high-efficiency heat insulation material with extremely low thermal conductivity, which can effectively prevent the heat inside the heat exchange box 11 from being lost to the outside, thereby ensuring that the heat in the exhaust gas can be fully absorbed by the water in the water tank 16 and improving the efficiency of heat recovery.

[0047] In one embodiment of this application, such as Figure 1 and Figure 2 As shown, a first manual valve 6 is provided on the outer wall of the heat exchange circulation pipe 17.

[0048] Understandably, the first manual valve 6 is set at a specific position in the heat exchange circulation pipe 17. Its main function is to control the flow of water in the heat exchange circulation pipe 17. When it is necessary to adjust the efficiency of heat energy recovery or to perform maintenance and repair on the equipment, the water flow can be controlled or even cut off by operating the first manual valve 6.

[0049] In one embodiment of this application, such as Figure 1 and Figure 2 As shown, a second manual valve 7 is installed on the outer wall of the water inlet pipe 19.

[0050] Understandably, the second manual valve 7 is installed at a specific location on the water inlet pipe 19. Its main function is to regulate the flow and volume of water in the water inlet pipe 19. During normal operation of the equipment, if it is necessary to adjust the water volume of the water tank 16 according to the actual situation, or if it is necessary to inspect and maintain the water inlet pipe 19 and related equipment, the operator can achieve precise adjustment by controlling the second manual valve 7.

[0051] In one embodiment of this application, such as Figure 1 and Figure 2 As shown, a thermometer 8 is installed on the outer wall of the water tank 16.

[0052] Understandably, the thermometer 8 is installed in a conspicuous position on the outer wall of the water tank 16. Its main function is to monitor the temperature of the water in the water tank 16 in real time. Through the display of the thermometer 8, the operator can intuitively understand the current temperature of the water in the water tank 16, and thus judge the effect of heat recovery and whether the equipment is in normal operation.

[0053] Working Principle: When the waste gas heat recovery unit 1 recovers heat energy from building waste gas, the waste gas first passes through the intake box 12 and enters the heat exchange box 11 under the action of the intake fan 13. After entering the heat exchange box 11, the waste gas undergoes sufficient heat exchange with the heat exchange circulation pipe 17. At this time, the water in the water tank 16 flows along the heat exchange circulation pipe 17 under the action of the circulating water pump 18, absorbing heat from the waste gas and raising the water temperature. During the heat exchange process, the waste gas first enters the electric field region composed of the electrode 204, copper wire 205, and busbar 206. In this electric field region, the electrode 204 is connected to the busbar 206 through the copper wire 205, forming a stable electric field. When the waste gas passes through this electric field, particulate matter and harmful gas molecules in it are electrostatically charged. Under the influence of the electric field, processes such as ionization, adsorption, or condensation occur, thereby achieving preliminary purification of the exhaust gas. Simultaneously, the corrugated structure of the filter 203 increases the contact area with the exhaust gas, improving filtration efficiency and effectively intercepting larger particles, further ensuring the purification effect. After dual purification by the electric field area and filter 203, most harmful substances in the exhaust gas have been removed. The exhaust gas continues to flow, passing through the exhaust box 14 and being discharged from the exhaust heat recovery unit 1 by the exhaust fan 15. The water that absorbed the heat from the exhaust gas is stored in the water tank 16, enabling the reuse of heat energy. Furthermore, the filter 203 is positioned inside the heat exchange box 11 towards the exhaust box 14, effectively preventing the accumulation of heat on the filter 203. Excessive impurities can affect heat exchange efficiency, ensuring the stability and high efficiency of the heat recovery process. Simultaneously, through the installation component 3, when the filter 203 needs to be installed, simply align the buckle 31 on the installation frame 202 with the corresponding slot 32 and press firmly. When the buckle 31 contacts the locking block 34 in the slot 32, due to the curvature of the outer wall of the locking block 34, it retracts towards the spring 33 upon contact. After the buckle 31 fully enters the slot 32, the locking block 34 pops out under the elastic force of the spring 33, tightly engaging with the buckle 31, thus firmly fixing the installation frame 202 onto the limiting frame 201. At the same time, the limiting post 35 restricts the position of the spring 33, preventing the spring 33 from shifting during compression and extension. To ensure the stability and reliability of the mounting component 3, the installation method is simple to operate and requires no complicated tools. When it is necessary to remove the filter 203, simply pull the mounting frame 202 outward. At this time, the buckle 31 will apply an outward force to the locking block 34, causing the locking block 34 to retract towards the spring 33. When the buckle 31 is completely disengaged from the locking groove 32, the mounting frame 202 can be removed from the limiting frame 201. This detachable design facilitates the regular cleaning and replacement of the filter 203, ensuring that the purification mechanism 2 always maintains a good purification effect. In addition, through the setting of the protective component 4, the protective cover 41 is firmly installed on the outer wall of the waste gas heat energy recovery unit 1 by fixing screws 42. This installation method is both firm and easy to disassemble.To facilitate subsequent maintenance and repair, a protective net 43 is installed on the outer wall of the protective cover 41. Its main function is to prevent large particles of debris from entering the interior of the waste gas heat recovery unit 1, avoiding damage to internal components such as the intake fan 13. It also reduces the impact of debris accumulation on heat recovery efficiency. An installation groove 44 on the inner wall of the protective cover 41 is used to install a metal mesh 45. The metal mesh 45 has fine pores, which further blocks small particles and dust from entering the equipment, reducing the burden on the filter 203 and electrode 204, and extending their service life. Furthermore, the metal mesh 45 is installed in the installation groove 44, making installation and replacement convenient. When a component in the protective assembly 4 is damaged or needs cleaning, the protective cover 41 can be easily removed by disassembling the fixing screws 42, allowing for the replacement or cleaning of the protective net 43 and metal mesh 45. This greatly improves the maintainability of the equipment and reduces operating costs.

[0054] In summary, this utility model provides a heat recovery device for building exhaust gas with purification function. Through the purification mechanism 2, it achieves dual purification of building exhaust gas. Firstly, it uses an electric field area to ionize, adsorb, or condense particulate matter and harmful gas molecules in the exhaust gas for initial purification. Secondly, it utilizes a corrugated filter 203 to effectively intercept smaller particulate matter in the exhaust gas, further ensuring the purification effect and greatly improving the quality of exhaust gas purification. Simultaneously, the filter 203 is positioned inside the heat exchange box 11 towards the outlet box 14, effectively preventing excessive accumulation of impurities on the filter 203 from affecting heat exchange efficiency, thus ensuring the stability and efficiency of the heat recovery process. Furthermore, the installation components 3 on the purification mechanism 2 make the installation and removal of the filter 203 extremely convenient, requiring no special tools. Operators can quickly complete the replacement and cleaning of the filter 203, saving both time and labor costs.

[0055] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0056] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0057] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A building exhaust gas heat recovery device with purification function, characterized in that, include: The waste gas heat energy recovery unit (1) and the purification mechanism (2) are arranged inside the waste gas heat energy recovery unit (1). The purification mechanism (2) includes a limiting frame (201), a mounting frame (202), a filter screen (203), an electrode (204), a copper wire (205), a busbar (206), and an installation component (3). The limiting frame (201) is arranged on the inner wall of the waste gas heat energy recovery unit (1). The mounting frame (202) is arranged inside the waste gas heat energy recovery unit (1). The filter screen (203) is arranged on the inner wall of the mounting frame (202). The electrode (204) is arranged inside the waste gas heat energy recovery unit (1). One end of the copper wire (205) is connected to the input end of the electrode (204). The busbar (206) is connected to the other end of the copper wire (205). The installation component (3) is arranged on the outer wall of the mounting frame (202).

2. A building exhaust gas heat recovery device with purification function according to claim 1, characterized in that, The mounting assembly (3) includes a buckle (31), a spring (33), a locking block (34), and a limiting post (35). The buckle (31) is provided with a slot (32) on the outer wall of the limiting frame (201). The spring (33) is located inside the slot (32), and one end of the spring (33) is connected to the limiting frame (201). The locking block (34) is connected to the other end of the spring (33). The limiting post (35) is located inside the spring (33), and one end of the limiting post (35) is connected to the limiting frame (201). The other end of the limiting post (35) is connected to the locking block (34).

3. A building exhaust gas heat recovery device with purification function according to claim 1, characterized in that, The outer wall of the waste gas heat recovery unit (1) is provided with a protective component (4). The protective component (4) includes a protective cover (41), a fixing screw (42), a protective net (43), a mounting groove (44), and a metal mesh (45). The protective cover (41) is provided on the outer wall of the waste gas heat recovery unit (1). The fixing screw (42) is provided on the outer wall of the protective cover (41), and the fixing screw (42) passes through the protective cover (41) and is connected to the waste gas heat recovery unit (1). The protective net (43) is provided on the outer wall of the protective cover (41). The inner wall of the protective cover (41) is provided with a mounting groove (44), and the metal mesh (45) is provided inside the mounting groove (44).

4. A building exhaust gas heat recovery device with purification function according to claim 1, characterized in that, The waste gas heat recovery unit (1) includes a heat exchange box (11), an air inlet box (12), an air inlet fan (13), an air outlet box (14), an air outlet fan (15), a water tank (16), a heat exchange circulation pipe (17), a circulating water pump (18), an inlet water pipe (19), an inlet water pump (20), and an outlet water pipe (21). The air inlet box (12) is located on one side of the heat exchange box (11), the air inlet fan (13) is located inside the air inlet box (12), the air outlet box (14) is located on the other side of the heat exchange box (11), and the air outlet fan (15) is located on the other side of the heat exchange box (11). Inside the air outlet box (14), the water tank (16) is located on the bottom wall of the heat exchange box (11), the heat exchange circulation pipe (17) is located inside the heat exchange box (11), and both ends of the heat exchange circulation pipe (17) are connected to the water tank (16). The circulating water pump (18) is located on the outer wall of the heat exchange circulation pipe (17). One end of the water inlet pipe (19) is connected to the water tank (16), the water inlet pump (20) is located on the outer wall of the water inlet pipe (19), and one end of the water outlet pipe (21) is connected to the water tank (16).

5. A building exhaust gas heat recovery device with purification function according to claim 4, characterized in that, The inner wall of the heat exchange box (11) is provided with a heat insulation layer (5).

6. A building exhaust gas heat recovery device with purification function according to claim 4, characterized in that, A first manual valve (6) is provided on the outer wall of the heat exchange circulation pipe (17).

7. A building exhaust gas heat recovery device with purification function according to claim 4, characterized in that, A second manual valve (7) is provided on the outer wall of the water inlet pipe (19).

8. A building exhaust gas heat recovery device with purification function according to claim 4, characterized in that, A thermometer (8) is installed on the outer wall of the water tank (16).

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