Epidemic prevention dual-mode conversion air conditioning unit integrating condensation heat recovery

Abstract

The invention relates to the technical field of air conditioning equipment, in particular to an integrated condensation heat recovery epidemic prevention dual-mode conversion air conditioning unit which comprises an air conditioning unit body and an exhaust unit, the exhaust unit body and the air conditioning unit body are fixedly connected, heating pipes are arranged in the exhaust unit body and the air conditioning unit body, and a heat exchanger is connected in the air conditioning unit body through a preheating coil pipe. The heat exchanger is connected with a cooling coil pipe and a humidifier through a first water storage tank and a second water storage tank, the cooling coil pipe, the humidifier and the water storage tank are communicated, and the inner wall of the air conditioning unit is connected with a medium-efficiency filter disc through a variable-frequency air feeder. Heat generated in the humidifying process and cold generated by the cooling coil pipe can be recycled through the preheating coil pipe, energy waste is reduced, rapid switching of modes can be achieved through starting and stopping of the air supply valve and the one-way exhaust fan, safety of indoor air is effectively guaranteed, the risk of cross infection is reduced, and a comfortable indoor environment is provided at ordinary times; and meanwhile, energy is saved in different operation modes, and the air conditioning unit and the exhaust unit are convenient to install.

Description

Technical Field

[0001] This invention relates to the field of air conditioning equipment technology, specifically to a dual-mode switching air conditioning unit with integrated condensing heat recovery for both normal and epidemic periods. Background Technology

[0002] The dual-mode switching air conditioning unit with integrated condensing heat recovery is an intelligent HVAC system designed specifically for hospitals that combine normal and epidemic control. Its core function is to enable rapid switching between ordinary wards and negative pressure isolation wards, while reducing energy consumption through heat recovery technology.

[0003] Traditional air conditioning systems struggle to quickly switch to emergency epidemic prevention modes, are unable to efficiently filter viruses or control airflow, and pose a risk of cross-infection. In 100% fresh air mode, humidification of the low-temperature fresh air is necessary.

[0004] In existing technologies, the condensate generated during steam humidification carries a large amount of heat energy, and direct discharge leads to energy loss. Furthermore, the cooling capacity of the condensate in air conditioning units is not effectively recovered, resulting in energy waste. Therefore, this invention proposes a dual-mode switching air conditioning unit with integrated condensate heat recovery for both normal and epidemic periods to address these problems. Summary of the Invention

[0005] The purpose of this invention is to provide a dual-mode switching air conditioning unit with integrated condensing heat recovery for both normal and epidemic periods, in order to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an integrated condensing heat recovery dual-mode switching air conditioning unit, comprising an air conditioning unit and an exhaust fan unit, wherein the exhaust fan unit and the air conditioning unit are fixedly connected, and both the exhaust fan unit and the air conditioning unit are equipped with heating pipes. A heat exchanger is connected to the air conditioning unit through a preheating coil. The heat exchanger is connected to a cooling coil and a humidifier through a water storage tank 1 and a water storage tank 2, and the three are interconnected. A medium-efficiency filter disc is connected to the inner wall of the air conditioning unit through a variable frequency fan.

[0007] Preferably, a primary filter and a heating tube are sequentially arranged inside the inlet end of the air conditioning unit. Both ends of the heating tube are fixedly connected to fixing blocks, which are fixedly connected to the inner wall of the air conditioning unit. The heating tube is fixedly connected to the side of the air conditioning unit. A preheating coil is fixedly connected inside the air conditioning unit, and the heating tube is located between the preheating coil and the primary filter.

[0008] Preferably, a high-efficiency filter is fixedly connected to the inner side of the output end of the air conditioning unit, a humidifier is provided at the input end of the high-efficiency filter, a steam water pan is fixedly connected to the lower end of the humidifier, and a water storage tank is fixedly connected to one end of the steam water pan through a humidifying condensate collection pipe.

[0009] Preferably, the air conditioning unit is equipped with a medium-efficiency filter and a variable frequency fan. The output end of the medium-efficiency filter is connected to the input end of the variable frequency fan. The medium-efficiency filter is located between the variable frequency fan and the preheating coil. The output end of the variable frequency fan is fixedly connected to a cold coil. A reheat pipe is provided on the side of the cold coil away from the variable frequency fan. The cold coil and the reheat pipe do not contact each other.

[0010] Preferably, the cooling coil and the variable frequency fan are both fixedly connected to the inner wall of the air conditioning unit, the lower end of the cooling coil is fixedly connected to a condensate collection pan, the reheat pipe is spiral in shape, and the surface of the reheat pipe is inserted into the inner wall of the air conditioning unit.

[0011] Preferably, the output end of the condensate collection pan is fixedly connected to a condensate collection pipe, the other end of the condensate collection pipe is fixedly connected to a water storage tank, the output end of the water storage tank is fixedly connected to a water storage tank, and the two are in communication. The other input end of the water storage tank is fixedly connected to a heat exchanger, and the heat exchanger has two output ends, which are respectively connected to the water storage tank and the preheating coil and are in communication. The output end of the preheating coil is fixedly connected to the heat exchanger.

[0012] Preferably, the exhaust fan unit has plugs fixedly connected to both sides, a unidirectional exhaust fan fixedly connected inside the exhaust fan unit, a fixing block fixedly connected inside the exhaust fan unit, and a heating tube fixedly connected to the surface of the fixing block.

[0013] Preferably, mounting blocks are fixedly connected to both sides of the air conditioning unit. The surface of the mounting block has a slot, and the plug is located in the slot and plugged into it. A mounting plate is slidably connected to one side of the slot. The lower end of the mounting plate is in close contact with the upper end of the plug. The mounting plate is fixedly connected to the exhaust fan unit by fixing bolts.

[0014] Preferably, the air conditioning unit is provided with a return air duct at its upper end, and the two output ends of the exhaust duct are fixedly connected to the air conditioning unit and the exhaust fan unit, respectively. One end of the exhaust fan unit is fixedly connected to an exhaust duct, and one end of the air conditioning unit is fixedly connected to another exhaust duct.

[0015] Preferably, the air conditioning unit is equipped with two air supply valves. One air supply valve is fixedly connected to the end away from the primary filter, and the other air supply valve is fixedly connected to the inner wall of the air conditioning unit. The high-efficiency filter is located between the two air supply valves.

[0016] When this device is working, the heat generated during humidification and the cold energy generated by the cooling coil can be recovered and utilized through the preheating coil, reducing energy waste and lowering the overall energy consumption of the air conditioning system. The entire system can quickly switch modes by opening and closing the air supply valve and the one-way exhaust fan. During the epidemic, it effectively ensures the safety of indoor air and reduces the risk of cross-infection. At other times, it provides a comfortable indoor environment while saving energy. Different operating modes are available, and the air conditioning unit and exhaust fan unit are easy to install. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 For the present invention Figure 1 Enlarged view of the structure of region A in the middle;

[0019] Figure 3 This is a schematic diagram of the exhaust fan unit structure of the present invention;

[0020] Figure 4 This is a schematic diagram of the air conditioning unit structure of the present invention;

[0021] Figure 5 This is a schematic diagram of the heating tube structure of the present invention;

[0022] Figure 6 This is a schematic diagram of the internal structure of the air conditioning unit of the present invention.

[0023] In the diagram: 1. Air conditioning unit; 11. Primary filter; 12. Heating element; 13. Preheating coil; 14. Medium-efficiency filter; 15. Variable frequency fan; 16. Cooling coil; 17. Reheat coil; 18. Humidifier; 19. High-efficiency filter; 2. Exhaust fan unit; 21. Insert block; 22. One-way exhaust fan; 23. Condensate collection tray; 24. Steam water tray; 25. Heat exchanger; 26. Water storage tank one; 27. Water storage tank two; 3. Fixing block; 4. Slot; 5. Mounting block; 6. Return air duct; 7. Exhaust air duct; 8. Mounting plate; 9. Air supply valve. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Please see Figures 1 to 6This invention provides a technical solution: an integrated condensing heat recovery dual-mode switching air conditioning unit, comprising an air conditioning unit 1 and an exhaust fan unit 2. A primary filter disc 11 and a heating element 12 are sequentially arranged inside the inlet end of the air conditioning unit 1. The primary filter disc 11 provides preliminary filtration of the incoming air. Fixing blocks 3 are fixedly connected to both ends of the heating element 12, and the fixing blocks 3 are fixedly connected to the inner wall of the air conditioning unit 1. The fixing blocks 3 facilitate the rapid stacking of the air conditioning unit and the exhaust fan unit 2. The heating element 12 is fixedly connected to the side of the air conditioning unit 1. A preheating coil 13 is fixedly connected inside the air conditioning unit 1. The preheating coil 13 can preheat or cool the incoming air. The heating element 12 is located between the preheating coil 13 and the primary filter 11. A high-efficiency filter 19 is fixedly connected to the inner side of the output end of the air conditioning unit 1. The high-efficiency filter 19 can further filter the air to be discharged. A humidifier 18 is installed at the input end of the high-efficiency filter 19. The humidifier 18 can humidify the air. A steam water pan 24 is fixedly connected to the lower end of the humidifier 18. One end of the steam water pan 24 is fixedly connected to a water storage tank 27 through a humidifying condensate collection pipe. The steam water pan 24 facilitates the collection of condensed liquid.

[0026] The air conditioning unit 1 is equipped with a medium-efficiency filter disc 14 and a variable frequency fan 15. The medium-efficiency filter disc 14 performs secondary filtration of the air. The output end of the medium-efficiency filter disc 14 is connected to the input end of the variable frequency fan 15. The medium-efficiency filter disc 14 is located between the variable frequency fan 15 and the preheating coil 13. The output end of the variable frequency fan 15 is fixedly connected to a cooling coil 16. The cooling coil 16 can condense the water vapor in the heated air on its surface, thereby achieving a drying effect. The cooling coil 16 is located away from the variable frequency fan. A reheat pipe 17 is provided on one side of the unit 15. The cold coil 16 does not contact the reheat pipe 17. The air can be effectively heated through the reheat pipe 17. The cold coil 16 and the variable frequency fan 15 are both fixedly connected to the inner wall of the air conditioning unit 1. A condensate collection tray 23 is fixedly connected to the lower end of the cold coil 16. The condensate collection tray 23 can collect water droplets on the surface of the cold coil 16. The reheat pipe 17 is spiral-shaped, thereby increasing the contact area. The surface of the reheat pipe 17 is inserted into the inner wall of the air conditioning unit 1.

[0027] The output end of the condensate collection pan 23 is fixedly connected to a condensate collection pipe, and the other end of the condensate collection pipe is fixedly connected to a water storage tank 26. The liquid inside the device can be collected through the water storage tank 26. The output end of the water storage tank 26 is fixedly connected to the water storage tank 27 and the two are in communication. The other input end of the water storage tank 26 is fixedly connected to a heat exchanger 25. The water temperature can be controlled through the heat exchanger 25. The heat exchanger 25 has two output ends, which are respectively connected to the water storage tank 27 and the preheating coil 13 and are in communication. The output end of the preheating coil 13 is fixedly connected to the heat exchanger 25. Both sides of the exhaust fan unit 2 are fixedly connected to plug blocks 21. The plug blocks 21 facilitate the quick installation of the exhaust fan unit 2. A unidirectional exhaust fan 22 is fixedly connected inside the exhaust fan unit 2. A fixing block 3 is fixedly connected inside the exhaust fan unit 2. A heating tube 12 is fixedly connected to the surface of the fixing block 3. The fixing block 3 can also improve the connection strength between the exhaust fan unit 2 and the air conditioning unit 1.

[0028] Both sides of the air conditioning unit 1 are fixedly connected to mounting blocks 5. The surface of the mounting block 5 is provided with slots 4. The plug 21 is located in the slot 4 and is inserted into it to limit the position of the exhaust fan unit 2. A mounting plate 8 is slidably connected to one side of the slot 4. The plug 21 can be fixed by the mounting plate 8 to fix the exhaust fan unit 2. The lower end of the mounting plate 8 is in close contact with the upper end of the plug 21. The mounting plate 8 is fixedly connected to the exhaust fan unit 2 by fixing bolts. At this time, the stacking is completed.

[0029] The air conditioning unit 1 is equipped with a return air duct 6 at its upper end, which facilitates the guidance of the absorbed air. The two output ends of the exhaust duct 7 are fixedly connected to the air conditioning unit 1 and the exhaust fan unit, respectively. One end of the exhaust fan unit 2 is fixedly connected to the exhaust duct 7, and one end of the air conditioning unit 1 is fixedly connected to another exhaust duct 7. When air enters the air conditioning unit 1, the mode is switched by adjusting the internal working state. The air conditioning unit 1 is equipped with two air supply valves 9. One air supply valve 9 is fixedly connected to the end away from the primary filter plate 11, and the other air supply valve 9 is fixedly connected to the inner wall of the air conditioning unit 1. The high-efficiency filter 19 is located between the two air supply valves 9. The air supply valves 9 can increase the internal air flow rate.

[0030] Place the exhaust fan unit 2 on top of the air conditioning unit 1 and align it with the fixing block 3. Insert the plug 21 into the slot 4, then slide the mounting plate 8 to fix the plug 21 vertically. Fixing the mounting plate 8 completes the stacking. At this point, start the variable frequency blower 15 and the air supply valve 9. Air enters through the primary filter plate 11, is heated by the heating pipe 12, filtered by the medium-efficiency filter plate 14, then passes through the cold coil 16 and the reheat pipe 17, and finally passes through the high-efficiency filter 19 before being discharged. During this process, if in working mode, both the variable frequency blower 15 and the unidirectional exhaust fan 22 adjust the fresh and exhaust air according to the control system. With the parameters set by stepless frequency conversion adjustment, the air supply electric valve and the air supply electric valve are closed, and the preset air duct at the top of the air conditioning unit 1 is opened. At this time, the air does not pass through the high-efficiency filter 19 to save energy. When it is in the epidemic prevention working mode, it can be manually switched by the control system or automatically switched according to the preset environmental parameters. The frequency conversion air supply fan 15 and the one-way exhaust fan 22 are adjusted by stepless frequency conversion to increase the exhaust and air supply volume, changing to a fresh air and full exhaust system. The one-way exhaust fan 22 is turned on, the return air duct 6 is completely closed, and the air supply valve 9 is opened. At this time, the air conditioning system is a fresh air and full exhaust air system mode. Fresh air is sent into the room after passing through the high-efficiency filter 19.

[0031] When this device is working, the heat generated during humidification and the cold energy generated by the cold coil 16 can be recovered and utilized through the preheating coil 13, reducing energy waste and lowering the overall energy consumption of the air conditioning system. The mode can be quickly switched by opening and closing the air supply valve 9 and the one-way exhaust fan 22. The position of the exhaust fan unit 2 can be quickly checked through the fixing block 3 and the plug block 21. The air conditioning unit 1 and the exhaust fan unit 2 can be quickly stacked through the mounting plate 8.

[0032] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dual-mode switching air conditioning unit integrating condensing heat recovery for both peacetime and epidemic periods, characterized in that: It includes an air conditioning unit (1) and an exhaust fan unit (2), the exhaust fan unit (2) and the air conditioning unit (1) are fixedly connected, and both the exhaust fan unit (2) and the air conditioning unit (1) are equipped with heating pipes (12). The air conditioning unit (1) is connected to a heat exchanger (25) through a preheating coil (13). The heat exchanger (25) is connected to a cold coil (16) and a humidifier (18) through a water storage tank (26) and a water storage tank (27), and the three are connected. The inner wall of the air conditioning unit (1) is connected to a medium-efficiency filter disc (14) through a variable frequency blower (15).

2. The dual-mode switching air conditioning unit with integrated condensing heat recovery according to claim 1, characterized in that: The air conditioning unit (1) has a primary filter disc (11) and a heating tube (12) arranged sequentially at the inlet end. Both ends of the heating tube (12) are fixedly connected to a fixing block (3). The fixing block (3) is fixedly connected to the inner wall of the air conditioning unit (1). The heating tube (12) is fixedly connected to the side of the air conditioning unit (1). A preheating coil (13) is fixedly connected inside the air conditioning unit (1). The heating tube (12) is located between the preheating coil (13) and the primary filter disc (11).

3. The dual-mode switching air conditioning unit with integrated condensing heat recovery according to claim 1, characterized in that: A high-efficiency filter (19) is fixedly connected to the inner side of the output end of the air conditioning unit (1). A humidifier (18) is provided at the input end of the high-efficiency filter (19). A steam water pan (24) is fixedly connected to the lower end of the humidifier (18). A water storage tank (27) is fixedly connected to one end of the steam water pan (24) through a humidifying condensate collection pipe.

4. The dual-mode switching air conditioning unit with integrated condensing heat recovery according to claim 1, characterized in that: The air conditioning unit (1) is equipped with a medium-efficiency filter disc (14) and a variable frequency fan (15). The output end of the medium-efficiency filter disc (14) is connected to the input end of the variable frequency fan (15). The medium-efficiency filter disc (14) is located between the variable frequency fan (15) and the preheating coil (13). The output end of the variable frequency fan (15) is fixedly connected to a cold coil (16). A reheat pipe (17) is provided on the side of the cold coil (16) away from the variable frequency fan (15). The cold coil (16) and the reheat pipe (17) do not contact each other.

5. The dual-mode switching air conditioning unit with integrated condensing heat recovery according to claim 4, characterized in that: The cooling coil (16) and the variable frequency fan (15) are both fixedly connected to the inner wall of the air conditioning unit (1). The lower end of the cooling coil (16) is fixedly connected to the condensate collection pan (23). The reheat pipe (17) is spiral in shape, and the surface of the reheat pipe (17) is inserted into the inner wall of the air conditioning unit (1).

6. The dual-mode switching air conditioning unit with integrated condensing heat recovery according to claim 5, characterized in that: The output end of the condensate collection pan (23) is fixedly connected to a condensate collection pipe, and the other end of the condensate collection pipe is fixedly connected to a water storage tank (26). The output end of the water storage tank (26) is fixedly connected to the water storage tank (27) and the two are in communication. The other input end of the water storage tank (26) is fixedly connected to a heat exchanger (25). The heat exchanger (25) has two output ends, which are respectively connected to the water storage tank (27) and the preheating coil (13) and are in communication. The output end of the preheating coil (13) is fixedly connected to the heat exchanger (25).

7. The dual-mode switching air conditioning unit with integrated condensing heat recovery according to claim 1, characterized in that: Both sides of the exhaust fan unit (2) are fixedly connected with plugs (21), and a one-way exhaust fan (22) is fixedly connected inside the exhaust fan unit (2). A fixing block (3) is fixedly connected inside the exhaust fan unit (2), and a heating tube (12) is fixedly connected to the surface of the fixing block (3).

8. The dual-mode switching air conditioning unit with integrated condensing heat recovery according to claim 1, characterized in that: The air conditioning unit (1) is fixedly connected to both sides of the mounting block (5). The surface of the mounting block (5) is provided with a slot (4). The plug (21) is located inside the slot (4) and is inserted into it. The mounting plate (8) is slidably connected to one side of the slot (4). The lower end of the mounting plate (8) is in close contact with the upper end of the plug (21). The mounting plate (8) is fixedly connected to the exhaust fan unit (2) by fixing bolts.

9. The dual-mode switching air conditioning unit with integrated condensing heat recovery according to claim 1, characterized in that: The air conditioning unit (1) is provided with a return air duct (6) at the upper end. The two output ends of the exhaust duct (7) are fixedly connected to the air conditioning unit (1) and the exhaust fan unit, respectively. One end of the exhaust fan unit (2) is fixedly connected to the exhaust duct (7), and one end of the air conditioning unit (1) is fixedly connected to another exhaust duct (7).

10. A dual-mode switching air conditioning unit with integrated condensing heat recovery for both normal and epidemic periods as described in claim 1, characterized in that: The air conditioning unit (1) is equipped with two air supply valves (9). One air supply valve (9) is fixedly connected to the end away from the primary filter (11), and the other air supply valve (9) is fixedly connected to the inner wall of the air conditioning unit (1). The high-efficiency filter (19) is located between the two air supply valves (9).

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