Heating ventilation air conditioner waste heat recovery device

Abstract

The utility model provides a heating ventilation air conditioner waste heat recovery device, which relates to the technical field of heating ventilation air conditioners and comprises a cabinet body, a waste heat collection bin and a waste heat conversion bin are arranged on the left side face of the cabinet body, a waste heat collection device is arranged in the waste heat collection bin, and a waste heat conversion device is arranged in the waste heat conversion bin. The waste heat collecting device comprises a plurality of first copper fin plates. According to the waste heat recovery device for the heating ventilation air conditioner, by arranging the first copper fin plate and the first heat exchange pipe, waste heat in waste gas of the air conditioner is transmitted to the second copper fin plate, then air in the air pipe is heated through the second copper fin plate, the heated hot air is exhausted when the air pipe exhausts air in the cabinet body, the temperature in the cabinet body is increased, and the heat exchange efficiency of the cabinet body is improved. During the period, waste gas does not make contact with the clothes placed in the cabinet body, and waste heat is kept clean while waste heat of the heating ventilation air conditioner is utilized.

Description

Technical Field

[0001] The utility model relates to a waste heat recovery device, in particular to a heating, ventilation and air conditioning waste heat recovery device, belonging to the technical field of heating, ventilation and air conditioning. Background Art

[0002] HVAC is a system that combines heating, ventilation and air conditioning functions. It is usually used inside buildings to provide a comfortable indoor environment. During the operation of HVAC, the waste heat in the HVAC system usually refers to the heat energy generated during the heating or cooling process. It is usually a by-product of the system operation. Most existing HVAC systems do not have waste heat utilization devices, and usually directly discharge the hot air discharged by the air conditioning unit outdoors, resulting in energy waste.

[0003] In the Chinese patent application publication CN216384526U, a HVAC waste heat utilization device is disclosed, which filters the exhaust gas of the warm air conditioner by setting a filter plate. The filtered exhaust gas with the waste heat directly enters the processing box to dry the clothes inside.

[0004] Although the above patent utilizes the waste heat of exhaust gas during use, since the exhaust gas from the air conditioner contains toxic and harmful substances, filtering by the filter plate alone may not be clean, and the toxic and harmful substances may enter the treatment box and come into contact with the clothes, causing contamination of the clothes.

[0005] In the Chinese patent application disclosure specification CN219120737U, a HVAC waste heat recovery device is disclosed. Through the cooperation of the HVAC body, connecting pipes and heating chamber, the waste heat discharged by the HVAC body is transferred to the interior of the heating chamber and heats the water to be heated inside the heating chamber. The heated water to be heated heats the water inside the heating pipe. Through the installation of the exhaust pipe, the waste heat discharged into the heating chamber is quickly discharged after heating the water to be heated.

[0006] Although the above patent can realize the recovery and utilization of waste heat in the exhaust gas when in use, and can also prevent toxic and harmful substances in the air-conditioning exhaust gas from contaminating the heated water inside the heating chamber, but because the air-conditioning exhaust gas contains particulate matter, the particulate matter will clog the heating pipe after long-term use, and the bent heating pipe is not convenient to clean, which affects its normal operation.

[0007] Therefore, a HVAC waste heat recovery device is proposed. Utility Model Content

[0008] The utility model provides a HVAC waste heat recovery device to achieve the utilization of HVAC waste heat while keeping the waste heat clean, and at the same time facilitate the cleaning of the waste heat collection device to maintain its normal operation.

[0009] The utility model is realized by the following technical solutions: a HVAC waste heat recovery device, comprising a cabinet, a waste heat collection bin and a waste heat conversion bin are provided on the left side of the cabinet, a waste heat collection device is provided in the waste heat collection bin, and a waste heat conversion device is provided in the waste heat conversion bin;

[0010] The waste heat collection device includes a plurality of first copper fins, a ventilation opening is provided on the upper surface of the first copper fins, and a first heat exchange tube is arranged between the first copper fins. The waste heat conversion device includes a plurality of second copper fins, a second heat exchange tube is arranged between the second copper fins, and the first heat exchange tube and the second heat exchange tube are connected by a pipe. A water tank is installed inside the waste heat conversion warehouse, and a water pump is installed on the upper surface of the water tank. The input end of the water pump is connected to the water tank, and the output end of the water pump is connected to the second heat exchange tube, and the other end of the first heat exchange tube is connected to the water tank.

[0011] The waste heat conversion device also includes an air duct arranged between the second copper fins. An air pump is installed on the inner wall of the waste heat conversion bin. The output end of the air pump is connected to the air duct. The other end of the air duct passes through the waste heat conversion bin and the cabinet, and contacts the second copper fins through the air duct. The second copper fins heat the air in the air duct, so that the air duct discharges the heated hot air when discharging air in the cabinet, thereby increasing the temperature inside the cabinet.

[0012] The input end of the air pump is fixedly connected to an exhaust pipe, the other end of the exhaust pipe passes through the bottom surface of the waste heat conversion bin, and a filter plate is installed at the connection position of the exhaust pipe and the waste heat conversion bin. Impurities in the air can be filtered out by the filter plate, so that clean air from the outside can enter the air pump.

[0013] An air intake pipe is fixedly connected to the left side of the waste heat collection bin, and the air intake pipe is connected to the exhaust port of the external HVAC. The connection position between the air intake pipe and the waste heat collection bin is located below the first copper fin plate.

[0014] The upper surface of the waste heat collection bin is fixedly connected to an exhaust pipe, and the exhaust pipe is located above the first copper fin plate. The exhaust gas of the air conditioner is discharged through the exhaust pipe after passing through the first copper fin plate.

[0015] A guide tube is fixed to the bottom surface of the waste heat collection bin, and a cap is installed at the bottom end of the guide tube. During normal use, the cap is in an installed state to prevent exhaust gas from leaving the guide tube. During cleaning, the cap is opened, and the sewage after flushing the first copper fin plate can leave through the guide tube.

[0016] A fan is installed on the inner top wall of the cabinet, a clothesline is fixed to the inner wall of the cabinet, a collection box is fixed to the bottom of the cabinet, a drain pipe is opened on the side of the collection box, and the drain pipe runs through the cabinet. Water droplets dripping from clothes hung on the clothesline can be collected through the collection box, and the residual water collected from the clothes can leave the cabinet through the drain pipe. At the same time, the drain pipe can balance the pressure difference between the inside and outside of the cabinet.

[0017] The utility model provides a HVAC waste heat recovery device, which has the following beneficial effects:

[0018] 1. The HVAC waste heat recovery device transfers the waste heat in the air-conditioning exhaust gas to the second copper fin by setting a first copper fin plate and a first heat exchange tube. The second copper fin plate then heats the air in the air duct, so that the air duct discharges the heated hot air when exhausting air in the cabinet, thereby increasing the temperature inside the cabinet and completing the drying of the clothes hung inside the cabinet. During this period, the exhaust gas does not come into contact with the clothes placed inside the cabinet, thereby realizing the utilization of the HVAC waste heat while keeping the waste heat clean.

[0019] 2. The HVAC waste heat recovery device transfers the waste heat to the first copper fin plate by passing the exhaust gas of the HVAC into the waste heat collection bin, and then the waste gas is discharged through the exhaust pipe. When cleaning is required after long-term use, it is only necessary to use a nozzle to flush the first copper fin plate to wash away the dust particles adhering to its upper surface to complete the cleaning. After flushing the first copper fin plate, the sewage can be discharged through the guide tube. At the same time, the filter plate can be disassembled and cleaned to complete the overall maintenance, which is convenient for cleaning the waste heat collection device to maintain its normal operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0021] Figure 2 This is a bottom view of the cabinet of the utility model;

[0022] Figure 3 This is a front view of the collection box of the utility model;

[0023] Figure 4 This is a schematic diagram of the internal structure of the waste heat collection bin of the utility model;

[0024] Figure 5 This is a schematic diagram of the internal structure of the waste heat conversion bin of the utility model;

[0025] Figure 6 This is a structural diagram of the water pump position of the utility model;

[0026] Figure 7 This is a schematic structural diagram of the waste heat collection device of the present invention.

[0027] Description of Reference Numerals

[0028] 1. Cabinet; 2. Waste heat collection chamber; 3. Waste heat conversion chamber;

[0029] 4. Waste heat collection device; 401. First copper fin plate; 402. First heat exchange tube;

[0030] 5. Waste heat conversion device; 501. Second copper fin plate; 502. Second heat exchange tube; 503. Air duct; 504. Air pump; 505. Exhaust pipe; 506. Filter plate;

[0031] 6. Water tank; 7. Water pump; 8. Air inlet pipe; 9. Exhaust pipe; 10. Guide tube; 11. Cap; 12. Fan; 13. Clothesline; 14. Collection box; 15. Drain pipe. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0033] See also Figures 1 to 7 The embodiment of the present invention provides a waste heat recovery device for heating, ventilation and air conditioning, including a cabinet body 1, a waste heat collection bin 2 and a waste heat conversion bin 3 are provided on the left side of the cabinet body 1, a waste heat collection device 4 is provided in the waste heat collection bin 2, a waste heat conversion device 5 is provided in the waste heat conversion bin 3, the waste heat collection device 4 includes a plurality of first copper fin plates 401, a ventilation hole is opened on the upper surface of the first copper fin plates 401, a first heat exchange tube 402 is provided between the first copper fin plates 401, and the waste heat conversion device 5 includes a plurality of second copper fin plates Plate 501, a second heat exchange tube 502 is provided between the second copper fin plate 501, the first heat exchange tube 402 and the second heat exchange tube 502 are connected by a pipeline, a water storage tank 6 is installed inside the waste heat conversion bin 3, the side of the water storage tank 6 is connected to the output end of the external water supply device, a water pump 7 is installed on the upper surface of the water storage tank 6, the input end of the water pump 7 is connected to the water storage tank 6, the output end of the water pump 7 is connected to the second heat exchange tube 502, and the other end of the first heat exchange tube 402 is connected to the water storage tank 6.

[0034] Please refer to Figure 2 、 Figure 3 、 Figure 5 、 Figure 6 and Figure 7The waste heat conversion device 5 also includes an air duct 503 arranged between the second copper fins 501. An air pump 504 is installed on the inner wall of the waste heat conversion bin 3. The output end of the air pump 504 is connected to the air duct 503. The other end of the air duct 503 passes through the waste heat conversion bin 3 and the cabinet 1, and contacts the second copper fins 501 through the air duct 503. The second copper fins 501 heats the air in the air duct 503, so that the air duct 503 discharges the heated air when exhausting air in the cabinet 1, thereby increasing the temperature inside the cabinet 1. The input end of the air pump 504 is fixedly connected to an exhaust pipe 505, and the other end of the exhaust pipe 505 passes through the bottom surface of the waste heat conversion bin 3. A filter plate 506 is installed at the connection position of the exhaust pipe 505 and the waste heat conversion bin 3. Impurities in the air can be filtered out by the filter plate 506, so that clean air from the outside can enter the air pump 504.

[0035] Please refer to Figure 1 、 Figure 2 、 Figure 4 and Figure 6 The left side of the waste heat collection bin 2 is fixedly connected with an air intake pipe 8, which is connected to the exhaust port of the external HVAC. The connection position between the air intake pipe 8 and the waste heat collection bin 2 is located below the first copper fin plate 401. The upper surface of the waste heat collection bin 2 is fixedly connected with an exhaust pipe 9, which is located above the first copper fin plate 401. The exhaust gas of the air conditioner is discharged through the exhaust pipe 9 after passing through the first copper fin plate 401.

[0036] Please refer to Figure 2 、 Figure 3 and Figure 6 A guide tube 10 is fixed to the bottom surface of the waste heat collection bin 2, and a cap 11 is installed at the bottom end of the guide tube 10. During normal use, the cap 11 is in an installed state to prevent exhaust gas from leaving the guide tube 10. During cleaning, the cap 11 is opened, and the sewage after flushing the first copper fin plate 401 can leave through the guide tube 10. A fan 12 is installed on the inner top wall of the cabinet 1, and a clothesline 13 is fixed to the inner wall of the cabinet 1. A collecting box 14 is fixed to the bottom of the cabinet 1, and a drain pipe 15 is provided on the side of the collecting box 14. The drain pipe 15 runs through the cabinet 1, and water droplets dripping from clothes hung on the clothesline 13 can be collected through the collecting box 14. The residual water collected from the clothes can leave the cabinet 1 through the drain pipe 15. At the same time, the drain pipe 15 can balance the pressure difference inside and outside the cabinet 1.

[0037] When the utility model is in use, the exhaust gas of the HVAC enters the waste heat collection bin 2 through the air inlet pipe 8, the exhaust gas contacts the multiple first copper fins 401, and then leaves the waste heat collection bin 2 through the exhaust pipe 9. During this period, the waste heat in the exhaust gas is transferred to the first copper fins 401. Driven by the water pump 7, the water flows through the second heat exchange tube 502 to the first heat exchange tube 402. The water flow in the first heat exchange tube 402 absorbs the waste heat and flows back to the second heat exchange tube 502. The water flow in the second heat exchange tube 502 carries The heat is transferred to the second copper fin plate 501, and the air pump 504 drives the outside air to pass through the filter plate 506 and enter the air duct 503. The second copper fin plate 501 heats the air inside the air duct 503, so that the air duct 503 discharges the heated hot air when exhausting air in the cabinet 1, thereby increasing the temperature inside the cabinet 1, and then completing the drying of the clothes hung inside the cabinet 1. During this period, the exhaust gas does not come into contact with the clothes placed inside the cabinet 1, thereby realizing the utilization of the waste heat of the HVAC while keeping the waste heat clean.

[0038] By passing the exhaust gas of the HVAC into the waste heat collection bin 2, the waste heat is transferred to the first copper fin plate 401, and then the exhaust gas is discharged through the exhaust pipe 9. When cleaning is required after long-term use, it is only necessary to use a nozzle to flush the first copper fin plate 401 to wash away the dust particles adhering to its upper surface to complete the cleaning. After flushing the first copper fin plate 401, the sewage can leave through the guide tube 10, and the filter plate 506 can be disassembled and cleaned to complete the overall maintenance, which is convenient for cleaning the waste heat collection device 4 to maintain its normal operation.

[0039] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A HVAC waste heat recovery device, comprising a cabinet (1), characterized in that: A waste heat collection bin (2) and a waste heat conversion bin (3) are provided on the left side of the cabinet (1); a waste heat collection device (4) is provided in the waste heat collection bin (2); and a waste heat conversion device (5) is provided in the waste heat conversion bin (3); The waste heat collection device (4) comprises a plurality of first copper fins (401), the upper surface of each of the first copper fins (401) is provided with a vent, and a first heat exchange tube (402) is provided between the first copper fins (401). The waste heat conversion device (5) comprises a plurality of second copper fins (501), a second heat exchange tube (502) is provided between the second copper fins (501), and the first heat exchange tube (402) and the second heat exchange tube (502) are connected via a pipe. A water storage tank (6) is installed inside the waste heat conversion chamber (3), and a water pump (7) is installed on the upper surface of the water storage tank (6). The input end of the water pump (7) is connected to the water storage tank (6), and the output end of the water pump (7) is connected to the second heat exchange tube (502). The other end of the first heat exchange tube (402) is connected to the water storage tank (6).

2. The HVAC waste heat recovery device according to claim 1, characterized in that: The waste heat conversion device (5) further comprises an air duct (503) arranged between the second copper fins (501); an air pump (504) is installed on the inner wall of the waste heat conversion chamber (3); the output end of the air pump (504) is connected to the air duct (503); and the other end of the air duct (503) passes through the waste heat conversion chamber (3) and the cabinet (1).

3. The HVAC waste heat recovery device according to claim 2, characterized in that: The input end of the air pump (504) is fixedly connected to an exhaust pipe (505), the other end of the exhaust pipe (505) passes through the bottom surface of the waste heat conversion chamber (3), and a filter plate (506) is installed at the connection position between the exhaust pipe (505) and the waste heat conversion chamber (3).

4. The HVAC waste heat recovery device according to claim 1, characterized in that: An air intake pipe (8) is fixedly connected to the left side of the waste heat collection bin (2), and the air intake pipe (8) is connected to the exhaust port of the external heating, ventilation and air conditioning system. The connection position between the air intake pipe (8) and the waste heat collection bin (2) is located below the first copper fin plate (401).

5. The HVAC waste heat recovery device according to claim 1, characterized in that: The upper surface of the waste heat collection bin (2) is fixedly connected to an exhaust pipe (9), and the exhaust pipe (9) is located above the first copper fin plate (401).

6. The HVAC waste heat recovery device according to claim 1, characterized in that: A guide tube (10) is fixed to the bottom surface of the waste heat collection bin (2), and a cap (11) is installed at the bottom end of the guide tube (10).

7. The HVAC waste heat recovery device according to claim 1, characterized in that: A fan (12) is installed on the inner top wall of the cabinet (1), a clothes-drying rod (13) is fixed on the inner wall of the cabinet (1), a collection box (14) is fixed on the bottom of the cabinet (1), a drainage pipe (15) is provided on the side of the collection box (14), and the drainage pipe (15) passes through the cabinet (1).

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