Waste heat recovery device of heating ventilation air conditioner

Abstract

The invention discloses a heating ventilation air conditioner waste heat recovery device, and belongs to the technical field of air conditioner waste heat recovery, the heating ventilation air conditioner waste heat recovery device comprises a shell, a heat exchange assembly, a fixed cleaning assembly and a filter assembly, a first fan is arranged on the left side face in the shell, a second fan is arranged on the right side face of the shell, and an evaporator and a condenser are fixedly connected in the shell; according to the water-gas separation device, water-gas separation can be achieved through separation of the separation block, the spraying water channel and the gas channel, the heat exchange effect of the water-gas separation device is improved, and the problem of uneven distribution caused by direct contact of water pressure and gas pressure is solved; and meanwhile, the contact area of spraying water and indoor air can be increased through the flow guide ball, gas and the spraying water are in primary contact, meanwhile, circulating water from top to bottom and airflow from bottom to top are subjected to spherical surface flow guide of the flow guide ball and then are dispersed all around and intersect, and therefore sufficient heat exchange is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of air-conditioning waste heat recovery, and more specifically, to a waste heat recovery device for heating, ventilation, and air conditioning (HVAC). Background Art

[0002] HVAC refers to heating, ventilation, and air conditioning systems, which are technologies and equipment used to control indoor environmental temperature, humidity, air quality, and air flow. The main purpose is to provide a comfortable indoor environment for buildings and ensure air quality and energy efficiency. Among them, the evaporative total heat recovery unit belongs to a type of HVAC and is mainly used to improve energy utilization efficiency and indoor air quality.

[0003] In the prior art during use, fresh air is drawn into the housing by a first fan, first cooled by a cold water coil, and then further cooled and dehumidified by an evaporator, and then discharged as cold air. At the same time, indoor air is sent into the heat recovery evaporation chamber by a second fan, contacts with the spray water and the heat recovery core body, and conducts sensible heat and latent heat exchange to achieve energy recovery. The spray water absorbs the heat and moisture of the indoor air and is recycled after completing energy recovery.

[0004] In the actual use process of the prior art, sensible heat and latent heat exchange are carried out through the contact between the spray water flowing through the heat recovery core body and the gas. Since the spray water is prone to uneven distribution due to the imbalance of water pressure and air pressure when contacting the gas, the water flow is too dense or too sparse in some areas, affecting the full contact between the spray water and the gas, thereby reducing its heat exchange effect.

[0005] Therefore, in view of the above technical problems, it is necessary to provide a waste heat recovery device for HVAC. Summary of the Invention

[0006] The purpose of the present invention is to provide a waste heat recovery device for HVAC to solve the above problems.

[0007] To achieve the above purpose, the technical solution provided by an embodiment of the present invention is as follows: A waste heat recovery device for HVAC, including a housing, a heat exchange component, a fixed cleaning component, and a filtering component. A first fan is arranged on the left inner side of the housing, a second fan is arranged on the right side of the housing, and an evaporator and a condenser are fixedly connected inside the housing; the heat exchange component is arranged inside the housing, and the heat exchange component includes a spray chamber arranged inside the housing. A separation block is arranged inside the spray chamber, and a plurality of spray water channels and gas channels are arranged at intervals inside the separation block. A diversion ball is arranged at the opening at the lower side of the spray water channel and the separation block; the filtering component is arranged below the separation block, and the filtering component includes a spray box fixedly connected below the separation block inside the spray chamber. A drain pipe is arranged at the bottom of the spray box, and a filter net is threadedly connected inside the drain pipe.

[0008] As a further improvement of the present invention, a magnetic inner core and a heat absorption block are respectively connected inside the flow guiding ball from inside to outside. An electromagnetic plate is fixedly connected to the inner bottom of the spray box. The electromagnetic plate and the magnetic inner core are magnetically connected. The magnetic inner core inside the flow guiding ball and the electromagnetic plate at the bottom of the spray box are magnetically connected. When the electromagnetic plate is powered on, a magnetic field will be generated to attract the magnetic inner core, thereby driving the flow guiding ball to move downward. The position change of the flow guiding ball can be controlled by the electromagnetic plate and the magnetic inner core. When powered on, the flow guiding ball is attracted to the bottom of the spray box for cleaning; when powered off, the flow guiding ball resets under the action of the spring. At the same time, the heat absorption block conducts heat to the surface of the flow guiding ball through direct contact with the air in the gas channel, and then transfers it to the spray water to achieve efficient sensible heat exchange.

[0009] As a further improvement of the present invention, a waterproof and breathable membrane is fixedly connected to the upper surface of the gas channel to ensure water-vapor separation, so that the spray water cannot enter the gas channel through the waterproof and breathable membrane.

[0010] As a further improvement of the present invention, a plurality of adsorption villi are annularly arrayed and installed in the middle area of the outer surface of the flow guiding ball. The adsorption villi are made of an adsorbable elastic material, which can effectively adsorb tiny particles, dust and other impurities in the gas, and increase the contact area between the flow guiding ball and the gas through the adsorption villi, making the heat exchange between the gas and the spray water more sufficient, further improving the heat exchange efficiency. At the same time, the adsorption villi are made of an adsorbable elastic material and have strong adsorption ability, which can firmly hold the particles and dust in the gas and reduce the pollutant content in the air flow.

[0011] As a further improvement of the present invention, a plurality of metal shrapnel are fixedly connected above the adsorption villi on the outer surface of the flow guiding ball. The separation block is made of a heat absorption material. The metal shrapnel can further increase the surface area of the flow guiding ball, thereby improving the adsorption ability for dust and impurities in the gas. At the same time, when the flow guiding ball is immersed in the spray box, the metal shrapnel vibrates due to the movement of the flow guiding ball, and this vibration helps to shake off the dust and impurities on the adsorption villi, thereby improving the self-cleaning effect.

[0012] As a further improvement of the present invention, a waste recycling box is fixedly connected below the drain pipe. A recycling box is slidably connected inside the waste recycling box. The recycling box is used to collect the dust, particles and other impurities intercepted by the filter screen. The sliding connection between the recycling box and the waste recycling box facilitates extraction and cleaning, and is convenient for regular cleaning.

[0013] As a further improvement of the present invention, one end of the connecting pipe is connected to the precooling coil, and the precooling coil is connected to the evaporator. The connecting pipe conveys the filtered spray water into the precooling coil for re-cooling, realizing the recycling and efficient cooling of the spray water, reducing the system energy consumption, and improving the water resource utilization rate.

[0014] As a further improvement of the present invention, a repair door is hinged to the outer surface of the housing through a hinge. An exhaust pipe is provided between the first fan, the second fan and the housing. Air inlet pipes are provided on both the left and right sides of the housing. A compressor is connected inside the housing near the evaporator. Valves are provided on the outer surfaces of the circulating water pipe and the connecting pipe. A water pump is fixedly connected to the outer surface of the connecting pipe. The repair door facilitates the regular maintenance and inspection of the mechanical parts inside the housing. The exhaust pipe can discharge the treated fresh air and indoor air. The air inlet pipes enable the fresh air and indoor air to enter the housing for treatment.

[0015] As a further improvement of the present invention, a circulating water pipe is provided on the outer surface of the evaporator. One end of the circulating water pipe penetrates into the spray chamber and is connected to a spray pipe. One end of the spray pipe is connected to a spray gun. Valves are provided on the outer surfaces of the circulating water pipe and the connecting pipe. A water pump is fixedly connected to the outer surface of the connecting pipe. It can convey the filtered spray water into the spray pipe for spraying, thus realizing the recycling of the water cycle and saving water resources.

[0016] As a further improvement of the present invention, the guide ball is connected to the spray box through a telescopic rod. A spring is sleeved on the outer surface of the telescopic rod, which can play a role in supporting and fixing the guide ball to ensure the stability of the guide ball.

[0017] Compared with the prior art, the advantages of the present invention are as follows: (1) In this solution, the separation block, the spray water channel and the gas channel are separated from each other to achieve water-gas separation, improve the heat exchange effect, avoid the uneven distribution problem caused by the direct contact of water pressure and air pressure, and at the same time, the contact area between the spray water and the indoor air can be increased by the guide ball, so that the gas and the spray water are in preliminary contact, and the heat is quickly absorbed by the heat absorption block, significantly improving the heat exchange efficiency. At the same time, the circulating water from top to bottom and the air flow from bottom to top are dispersed and converged in all directions after being guided by the spherical surface of the guide ball, so as to achieve full heat exchange; (2) The adsorption fluff and metal shrapnel on the surface of the guide ball can adsorb impurities and dust in the gas, making them adhere to the surface. The waterproof ventilation membrane in the separation block effectively blocks water from entering the gas channel to ensure smooth air flow. At the same time, the use of heat-conducting materials in the separation block can promote heat transfer, so that the spray water cools the gas in the gas channel by heat transfer to achieve indirect cooling; (3) When the gas floats above the separation block, it can make secondary contact with the spray water sprayed by the spray gun to complete the multi-stage heat exchange process, further improving the heat exchange effect. Thus, through the multi-stage heat exchange design, the waste heat recovery goal of the HVAC system is achieved; (4) Enter the spray box through the spring, telescopic rod, electromagnetic plate and magnetic inner core for soaking, so that the dust and impurities adhered to the fluff fall into the spray box. The vibration generated by the metal shrapnel causes the guide ball to shake, so as to better remove the dust and impurities on the adsorption fluff and metal shrapnel, enabling the guide ball to achieve self-cleaning. After the cleaning is completed, the guide ball resets and is fixed again to ensure that its surface always remains clean, avoiding the decline of heat exchange efficiency caused by pollution; (5) Through the valve, water pump, drain pipe and connecting pipe, the sprayed water can be pumped to the pre-cooling coil for reprocessing, realizing the efficient recycling of water resources, reducing the demand for external water sources. At the same time, the filter screen in the connecting pipe can effectively intercept the dust, particulate matter and other impurities in the spray water, preventing impurities from entering the subsequent pipeline or pre-cooling coil, avoiding blockage or damage to the equipment, ensuring the cleanliness of the spray water delivered to the pre-cooling coil, improving the cooling efficiency. At the same time, the waste can fall into the waste recycling box for centralized treatment, and the filtered spray water is transported to the pre-cooling coil through the connecting pipe for reprocessing, which can realize the efficient recycling of water resources and reduce the demand for external water sources. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the whole of the present invention; Figure 2 is a structural sectional view of the whole of the present invention; Figure 3 is a partial structural sectional view of the whole of the present invention; Figure 4 is a partial structural sectional view of the spray chamber of the present invention; Figure 5 For the present invention Figure 4Enlarged view of the structure at A in the [Chinese context]; Figure 6 This is a partial structural cross-sectional view of the diversion ball of the present invention.

[0019] Explanation of the reference numerals in the figure: 1. Outer shell; 2. Evaporator; 3. Condenser; 4. Fan 1; 5. Fan 2; 6. Heat exchange component; 601. Spray chamber; 602. Spray pipe; 603. Circulating water pipe; 604. Spray gun; 605. Diversion ball; 6051. Magnetic inner core; 6052. Metal elastic sheet; 6053. Heat absorption block; 6054. Adsorption fluff; 606. Waterproof and breathable membrane; 607. Separation block; 608. Spray water channel; 609. Gas channel; 610. Electromagnetic plate; 611. Spring; 7. Telescopic rod; 8. Filter component; 801. Spray box; 802. Drain pipe; 803. Filter net; 804. Waste recycling box; 805. Recycling box; 807. Connecting pipe; 808. Pre-cooling coil; 9. Exhaust pipe; 10. Intake pipe; 11. Compressor. Specific implementation manner

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Embodiment 1: Please refer to Figures 1-6 , a waste heat recovery device for heating, ventilation and air conditioning, including an outer shell 1, a fan 1 is arranged on the left inner side of the outer shell 1, a fan 2 is arranged on the right side of the outer shell 1, and an evaporator 2 and a condenser 3 are fixedly connected inside the outer shell 1.

[0022] Specifically, the heat exchange component 6 is arranged inside the outer shell 1. The heat exchange component 6 includes a spray chamber 601 arranged inside the outer shell 1. A separation block 607 is arranged inside the spray chamber 601. A plurality of spray water channels 608 and gas channels 609 are arranged at intervals inside the separation block 607. A diversion ball 605 is arranged at the opening on the lower side of the spray water channel 608 and the separation block 607. A magnetic inner core 6051 and a heat absorption block 6053 are respectively connected inside the diversion ball 605 from inside to outside. An electromagnetic plate 610 is fixedly connected to the bottom inside the spray box 801. The electromagnetic plate 610 and the magnetic inner core 6051 are magnetically connected. The magnetic inner core 6051 is a magnetic material component that can generate magnetic connection with the external electromagnetic plate 610. The electromagnetic plate 610 is waterproofed to improve the magnetic connection stability between the electromagnetic plate 610 and the magnetic inner core 6051.

[0023] A waterproof breathable membrane 606 is fixedly connected to the upper surface of the gas channel 609. The waterproof breathable membrane 606 is usually used to separate gas and liquid, allowing gas to pass through while preventing liquid from penetrating. Liquid water cannot pass through the micropores due to surface tension and is therefore effectively blocked outside. The volume of gas molecules is much smaller than the size of the micropores and can easily pass through the membrane material to achieve gas exchange. The waterproof breathable membrane 606 allows gas to flow, thereby quickly balancing the pressure difference inside and outside the equipment and avoiding sealing failure or damage due to air pressure imbalance. At the same time, the waterproof breathable membrane 606 can effectively block spray water from the spray water channel 608 into the gas channel 609 when in use, ensuring that gas circulation is not hindered.

[0024] A plurality of adsorption villi 6054 are installed in a circular array in the middle area of ​​the outer surface of the guide ball 605. The adsorption villi 6054 are made of adsorbable elastic material. The adsorption villi 6054 is a material with a tiny fiber structure, which is usually used to adsorb impurities such as particulate matter, dust, moisture, etc. in other media in the liquid. It captures the target substance by physical adsorption or chemical adsorption. At the same time, the adsorption villi 6054 has a certain elasticity, which can reduce the pollutant content in the airflow, and can restore the adsorption villi 6054 to its original shape when subjected to external force (such as airflow impact or vibration during cleaning), thereby avoiding a decrease in adsorption capacity due to deformation.

[0025] The outer surface of the guide ball 605 is fixedly connected with a plurality of metal springs 6052 near the top of the adsorption fluff 6054. The metal spring 6052 is a thin sheet part made of a metal material with good elastic properties. It usually has a certain shape and structural design, can be elastically deformed when subjected to external force, and restore to its original state after the external force is removed. It also has a certain thermal conductivity and can be replaced by beryllium bronze, stainless steel, spring steel, copper alloy, etc. The metal spring 6052 can be used in conjunction with the guide ball 605. The guide ball 605 is connected to the spray box 801 through a telescopic rod 7, and a spring 611 is sleeved on the outer surface of the telescopic rod 7.

[0026] The separation block 607 is made of heat-absorbing material. The separation block 607 is made of heat-absorbing material and can efficiently absorb the heat in the spray water channel 608 and transfer it to the gas channel 609 to achieve indirect heat exchange. The heat-absorbing material refers to a type of material that can quickly absorb and store heat, and can be replaced by ceramic materials (including alumina ceramics, silicon nitride ceramics, etc.) and composite materials (including graphite-based composite materials and metal-based composite materials). A circulating water pipe 603 is provided on the outer surface of the evaporator 2. One end of the circulating water pipe 603 is inserted into the spray chamber 601 and is connected to a spray pipe 602. One end of the spray pipe 602 is connected to a spray gun 604.

[0027] Furthermore, it floats upward through the gas channel 609 in the separation block 607, makes initial contact with the sprayed water in the middle of the diversion ball 605 and exchanges heat. The adsorption fluff 6054 and metal shrapnel 6052 on the surface of the diversion ball 605 can adsorb impurities and dust in the gas, and the internal heat absorption block 6053 adsorbs the heat in the gas. At the same time, relying on the spherical characteristics of the diversion ball 605, the circulating water from top to bottom and the air flow from bottom to top both show a phenomenon of dispersing and converging in all directions after being diverted by the spherical surface, so as to achieve sufficient heat exchange. When the gas floats above the separation block 607, it can exchange heat with the sprayed water for the second time. Finally, when it is necessary to clean the diversion ball 605, the electromagnetic plate 610 is powered on. The electromagnetic plate 610 is magnetically connected to the magnetic inner core 6051, compresses the spring 611 and the telescopic rod 7, drives the diversion ball 605 to move downward and contact the bottom of the spray box 801, so that the diversion ball 605 is completely immersed in the sprayed water, so that the dust and impurities adhered to the adsorption fluff 6054 and metal shrapnel 6052 in the diversion ball 605 can be cleaned.

[0028] Embodiment 2: Refer to Figures 1-6 , which is the second embodiment of the present invention. This embodiment is based on the previous embodiment, and the filter assembly 8 is arranged below the separation block 607.

[0029] Specifically, the filter assembly 8 includes a spray box 801 fixedly connected below the separation block 607 inside the spray chamber 601. A drain pipe 802 is arranged at the bottom of the spray box 801. A filter screen 803 is threadedly connected inside the drain pipe 802. A waste recycling box 804 is fixedly connected below the drain pipe 802. A recycling box 805 is slidably connected inside the waste recycling box 804. A repair door is hinged to the outer surface of the housing 1. An exhaust pipe 9 is arranged between the first fan 4, the second fan 5 and the housing 1. Air inlet pipes 10 are arranged on the left and right sides of the housing 1. A compressor 11 is connected near the evaporator 2 inside the housing 1. Valves are arranged on the outer surfaces of the circulating water pipe 603 and the connecting pipe 807. A water pump is fixedly connected to the outer surface of the connecting pipe 807.

[0030] One end of the connecting pipe 807 is connected to the pre-cooling coil 808, and the pre-cooling coil 808 is connected to the evaporator 2. The pre-cooling coil 808 is a heat exchange device used to reduce the temperature of a fluid (such as water, air or other media). It is usually made of metal pipes, with a low-temperature cooling medium (such as cold water or refrigerant) flowing inside and in contact with the fluid to be cooled outside, and the temperature is reduced through heat exchange. After the sprayed water intercepts impurities through the filter screen 803, it enters the pre-cooling coil 808 through the connecting pipe 807. The low-temperature cooling medium (such as cold water or refrigerant) in the pre-cooling coil 808 absorbs the heat in the sprayed water, thereby reducing the temperature of the sprayed water.

[0031] Further, start the water pump to allow the spray water to enter the connecting pipe 807 through the drain pipe 802 below the spray box 801. The filter screen 803 in the connecting pipe 807 can block the impurities cleaned. The filtered spray water is transported through the connecting pipe 807 to the precooling coil 808 for refrigeration again. At the same time, the impurities blocked by the filter screen 803 fall into the recycling box 805 in the waste recycling box 804 by gravity for centralized storage. The waste can be cleaned by sliding the repair door to withdraw the recycling box 805.

[0032] Working principle: During use, fresh air enters the interior of the housing 1 through the air inlet pipe 10 and is pumped to the evaporator by the first fan 4. The refrigerant in the evaporator 2 absorbs the heat in the air to cool and dehumidify the fresh air. The cooled cold air is discharged through the exhaust pipe 9 to provide low-temperature and dry air for the room. At the same time, the indoor air enters the interior of the housing 1 through the air inlet pipe 10 and is pumped to the heat exchange component 6 in the spray chamber 601 by the second fan 5. At this time, start the water pump to pump the liquid through the evaporator 2 into the circulating water pipe 603. The circulating water pipe 603 evenly transports the liquid through the spray pipe 602 into the spray gun 604. The spray gun 604 sprays out the liquid, and the spray water drips down through the spray water channel 608 in the separation block 607. The waterproof and breathable film 606 above the gas channel 609 can prevent the spray water from dripping.

[0033] The indoor air floats upward through the gas channel 609 in the separation block 607 and makes initial contact and heat exchange with the spray water in the middle of the diversion ball 605. The adsorption fluff 6054 and metal elastic sheet 6052 on the surface of the diversion ball 605 can adsorb the impurities and dust in the gas, and the heat absorption block 6053 inside adsorbs the heat in the gas. At the same time, relying on the spherical surface characteristics of the diversion ball 605, the circulating water flowing from top to bottom and the air flow flowing from bottom to top both show a phenomenon of dispersing and converging in all directions after being diverted by the spherical surface, so as to achieve sufficient heat exchange. At the same time, the air flow after heat exchange just enters the gas channel 609 and flows upward, and uses the heat conduction effect of passing through the separation block 607 to transfer the temperature of the spray water channel 608 into the gas channel 609 for secondary heat exchange of the gas. When the gas floats above the separation block 607, it can perform secondary heat exchange with the sprayed spray water. Finally, the gas is processed by the condenser 3, and the steam in the gas is condensed into liquid water and discharged through the exhaust pipe 9, so as to improve its heat exchange effect and avoid the phenomenon that the spray water and gas in the traditional heat recovery core are unevenly distributed due to the imbalance of water pressure and air pressure, affecting the full contact between the spray water and the gas.

[0034] When it is necessary to clean the diversion ball 605, the electromagnetic plate 610 is powered on. The electromagnetic plate 610 is magnetically connected to the magnetic inner core 6051, compressing the spring 611 and the telescopic rod 7, driving the diversion ball 605 to move downward and contact the bottom of the spray box 801, so that the diversion ball 605 is completely immersed in the spray water. Thus, the dust and impurities adsorbed on the fluff 6054 and adhered to the metal shrapnel 6052 in the diversion ball 605 can be cleaned. At the same time, during the immersion process, the vibration generated by the downward movement of the metal shrapnel 6052 causes the diversion ball 605 to shake, so that the impurities on the adsorbed fluff 6054 can be better cleaned. After the cleaning is completed, the electromagnetic plate 610 is turned off, and the spring 611 and the telescopic rod 7 drive the diversion ball 605 to move upward to ensure that the diversion ball 605 is firmly fixed below the spray water channel 608.

[0035] Subsequently, the water pump is started, so that the spray water enters the connecting pipe 807 through the drain pipe 802 below the spray box 801. The filter screen 803 in the connecting pipe 807 can block the cleaned impurities. The filtered spray water is transported to the precooling coil 808 through the connecting pipe 807 for re-cooling. At the same time, the impurities blocked by the filter screen 803 fall into the recycling box 805 in the waste recycling box 804 by gravity for centralized storage. The waste can be cleaned by sliding the repair door to withdraw the recycling box 805, thus realizing the efficient recycling of water resources and reducing the demand for external water sources.

[0036] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0037] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A waste heat recovery device for heating, ventilation and air conditioning, characterized in that, Comprising: A housing (1), on the left inner side of the housing (1), a first blower (4) is provided, on the right side of the housing (1), a second blower (5) is provided, and an evaporator (2) and a condenser (3) are fixedly connected inside the housing (1); A heat exchange component (6), arranged inside the housing (1), the heat exchange component (6) includes a spray chamber (601) arranged inside the housing (1), a separation block (607) is arranged inside the spray chamber (601), a plurality of spray water channels (608) and gas channels (609) are arranged at intervals inside the separation block (607), and a diversion ball (605) is arranged at the lower opening of the spray water channel (608) and the separation block (607); A filtering component (8), arranged below the separation block (607), the filtering component (8) includes a spray box (801) fixedly connected below the separation block (607) inside the spray chamber (601), a drain pipe (802) is arranged at the bottom of the spray box (801), and a filter net (803) is threadedly connected inside the drain pipe (802).

2. The HVAC waste heat recovery device according to claim 1, characterized in that: Inside the diversion ball (605), a magnetic inner core (6051) and a heat absorption block (6053) are respectively connected from the inside to the outside, and an electromagnetic plate (610) is fixedly connected to the bottom of the spray box (801), and the electromagnetic plate (610) is magnetically connected to the magnetic inner core (6051).

3. The HVAC waste heat recovery device according to claim 1, wherein: A waterproof breathable film (606) is fixedly connected to the upper surface of the gas channel (609).

4. The HVAC waste heat recovery device according to claim 1, characterized in that: A plurality of adsorption villi (6054) are annularly arrayed in the middle area of the outer surface of the diversion ball (605), and the adsorption villi (6054) are made of an adsorbable elastic material.

5. The HVAC waste heat recovery device according to claim 4, wherein: A plurality of metal shrapnel (6052) are fixedly connected to the outer surface of the diversion ball (605) above the adsorption villi (6054), and the separation block (607) is made of a heat-conducting material.

6. The HVAC waste heat recovery device according to claim 1, characterized in that: A waste recycling box (804) is fixedly connected below the drain pipe (802), and a recycling box (805) is slidably connected inside the waste recycling box (804).

7. The HVAC waste heat recovery device according to claim 1, wherein: A connecting pipe (807) penetrates through the side of the drain pipe (802), one end of the connecting pipe (807) is connected to a pre-cooling coil (808), and the pre-cooling coil (808) is connected to the evaporator (2).

8. The HVAC waste heat recovery device according to claim 1, characterized in that: A repair door is hinged to the outer surface of the housing (1) through a hinge, an exhaust pipe (9) is arranged between the first blower (4), the second blower (5) and the housing (1), air inlet pipes (10) are arranged on both the left and right sides of the housing (1), and a compressor (11) is connected inside the housing (1) near the evaporator (2).

9. The HVAC waste heat recovery device according to claim 1, wherein: A circulating water pipe (603) is arranged on the outer surface of the evaporator (2), one end of the circulating water pipe (603) penetrates into the spray chamber (601) and is connected to a spray pipe (602), one end of the spray pipe (602) is connected to a spray gun (604), valves are arranged on the outer surfaces of the circulating water pipe (603) and the connecting pipe (807), and a water pump is fixedly connected to the outer surface of the connecting pipe (807).

10. The HVAC waste heat recovery device according to claim 9, characterized in that: The diversion ball (605) is connected to the spray box (801) through a telescopic rod (7), and a spring (611) is sleeved and connected to the outer surface of the telescopic rod (7).

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