Ground radiant panel air conditioner with drainage structure
By designing a drainage structure with small-diameter pipes and pneumatic drainage components, the problems of space occupation and high cost of condensate drainage in air conditioning systems are solved, achieving efficient and stable condensate drainage and improving the installation flexibility and user comfort of air conditioning systems.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUNAN FUXING TECH CO LTD
- Filing Date
- 2025-06-05
- Publication Date
- 2026-05-19
AI Technical Summary
In existing air conditioning systems, gravity-flow natural drainage takes up a lot of space, while water pump drainage is costly and poses a risk of leakage. Ground radiant air conditioners cannot effectively remove condensate, affecting user comfort and market promotion.
A ground radiant panel air conditioner with a drainage structure was designed. It uses small-diameter pipes and air pressure drainage components, combined with vacuum tanks and compressed air tanks, to achieve continuous and rapid drainage, avoiding the defects of traditional methods.
It achieves efficient, stable, and energy-saving condensate drainage, improves the installation flexibility and operational reliability of the air conditioning system, reduces costs, and enhances market competitiveness and user comfort.
Smart Images
Figure CN224261826U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air conditioning technology, specifically a ground radiant panel air conditioner with a drainage structure. Background Technology
[0002] Effective removal of condensate is crucial for ensuring stable operation and a comfortable indoor environment during the operation of an air conditioning system. Currently, common methods for removing air conditioning condensate include gravity flow and small water pumps, but these methods all have certain drawbacks and limitations.
[0003] When using gravity flow for natural drainage, the drainage pipes need to have a certain diameter and slope to ensure smooth discharge of condensate. As the length of the condensate pipes increases, the elevation of their ends decreases, which inevitably occupies a large amount of ceiling space and limits the flexibility of building design and space utilization.
[0004] For small water pumps to remove condensate, the pumps themselves are large and require a lot of installation space, which leads to many limitations in the actual installation process. In addition, each air conditioning terminal unit needs to be equipped with a separate water pump, which significantly increases the system cost. At the same time, external water pumps and their interfaces pose a risk of leakage, increasing the system's maintenance costs and failure risk.
[0005] Furthermore, due to their special structure and operating principle, radiant floor air conditioners cannot use conventional gravity flow or water pumps to remove condensate. They usually require expensive constant temperature and humidity systems. Moreover, the operating conditions of constant temperature and humidity systems are harsh, such as restricting the opening of doors and windows, which seriously affects the comfort and user experience, greatly hindering the market promotion and application of radiant floor air conditioners. Utility Model Content
[0006] The purpose of this invention is to provide a ground radiant air conditioner with a drainage structure to solve the problems mentioned in the background art.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] A ground radiant air conditioner with a drainage structure includes an outdoor unit and a ground radiant panel. The ground radiant panel includes a panel body with a central cavity in the middle and water collection cavities on both sides. A coil is installed inside the central cavity, which is filled with distilled water. Several transverse partitions are evenly distributed inside the central cavity. Several airbag support frames are also evenly distributed inside the central cavity, each containing an airbag. Clips for fixing the airbag support frames are provided on both sides of each airbag support frame. Several support partitions are provided inside the water collection cavities. A third condensate pipe and a fourth condensate pipe are arranged side by side at the lower end of one side of the body. A connecting cavity is provided on one side of the intermediate cavity. The connecting cavity is connected to a water collection cavity on one side. One end of the fourth condensate pipe is connected to the connecting cavity. One end of the third condensate pipe is connected to the adjacent water collection cavity. A fixed panel is fixedly connected to the upper end of the plate in the intermediate cavity. A movable panel is provided at the upper end of the plate in the water collection cavity. Several anti-water-contact strips are provided on the upper surface of the movable panel and the fixed panel. A water collection groove is provided in the recess between adjacent anti-water-contact strips. A water level detector is provided inside the water collection cavity.
[0009] The outdoor unit includes a temperature control system that works with the coils and a drainage assembly for draining the water collection chamber.
[0010] As a further embodiment of this utility model: the temperature control system includes a third fluorinated refrigerant pipe, a first four-way valve, a compressor, a gas-liquid separator, a fourth fluorinated refrigerant pipe, and a second four-way valve. Both ends of the third fluorinated refrigerant pipe are connected to the two ports of the first four-way valve. The compressor and the gas-liquid separator are connected in series on the third fluorinated refrigerant pipe. Both ends of the fourth fluorinated refrigerant pipe are connected to the two ports of the second four-way valve. The other two ports of the first four-way valve are connected in series on the fourth fluorinated refrigerant pipe. An air heat exchanger, an electronic expansion valve, and a drying filter are connected in series on the fourth fluorinated refrigerant pipe. The first fluorinated refrigerant pipe and the second fluorinated refrigerant pipe are connected to the other two ports of the second four-way valve. The ends of the first and second fluorinated refrigerant pipes furthest from the second four-way valve are connected to the two ports of the coil.
[0011] As a further embodiment of this utility model: the drainage assembly includes a first air pipe, a second pressure drainage tank, a first pressure drainage tank, and a second condensate pipe. One end of the first air pipe is connected to a second solenoid valve, and the other end of the first air pipe is connected to a second air pipe. The other end of the second air pipe is connected to the end of the first air pipe near the second solenoid valve. A first solenoid valve, an air compressor, an eighth solenoid valve, and a ninth solenoid valve are connected in series on the second air pipe. A vacuum tank is connected to the second air pipe between the air compressor and the eighth solenoid valve. A third solenoid valve is connected to a branch pipe connecting the vacuum tank and the second air pipe. A fifth solenoid valve is connected to the second air pipe between the vacuum tank and the eighth solenoid valve. A compressed air tank is connected to the end of the first air pipe near the second solenoid valve. A fourth solenoid valve is connected to a branch pipe connecting the compressed air tank and the first air pipe. One end of the second pressure drainage tank is connected to the second air pipe between the eighth and ninth solenoid valves. One end of the first pressure drainage tank is connected to the third air pipe, and both ends of the third air pipe are connected to the first air pipe and the second air pipe, respectively. The third air pipe has a sixth solenoid valve and a seventh solenoid valve connected to both ends, respectively. The other end of the second pressure drain tank is connected to a fifth condensate pipe, and the other end of the first pressure drain tank is connected to a sixth condensate pipe. The ends of both the fifth and sixth condensate pipes furthest from the first pressure drain tank are connected to the second condensate pipe. A seventh condensate pipe is also connected to the fifth condensate pipe, with the end furthest from the fifth condensate pipe connected to the second condensate pipe. A fourth check valve is connected to the seventh condensate pipe. A third check valve is connected between the seventh and second condensate pipes. A second check valve is connected between the sixth and seventh condensate pipes. A first check valve is connected between the sixth and fifth condensate pipes. One end of the second condensate pipe is connected to the first condensate pipe. The ends of the third and fourth condensate pipes away from the intermediate cavity are both connected to the first condensate pipe. A first electric valve and a second electric valve are respectively provided on the third and fourth condensate pipes.
[0012] As a further embodiment of this utility model: the end of the second condensate pipe away from the first condensate pipe is connected to a condensate spray head, which is located near the air heat exchanger and is used to spray the air heat exchanger.
[0013] As a further improvement of this utility model: the surface of the plate is covered with a heat insulation board, and a number of rigid heat insulation materials are embedded in the heat insulation board located at the lower end of the plate, and the rigid heat insulation materials are evenly distributed.
[0014] As a further improvement of this utility model: the second air pressure drain tank is provided with a second water level control probe, and the first air pressure drain tank is provided with a first water level control probe.
[0015] As a further embodiment of this utility model: the compressed air tank is provided with a second pressure gauge, the vacuum tank is provided with a vacuum gauge, and the second air pipe is provided with a first pressure gauge at the position between the first solenoid valve and the air compressor.
[0016] As a further improvement of this utility model: the outdoor unit is also equipped with a controller, which is electrically connected to several control lines. The second water level control probe, the first water level control probe, the second pressure gauge, the vacuum gauge and the first pressure gauge are electrically connected to the controller.
[0017] As a further improvement of this utility model: several panel fixing holes are provided on both sides of the plate, and the panel fixing holes are evenly distributed.
[0018] As a further improvement of this utility model: the upper end of the water collection tank is provided with a funnel-shaped opening, the end of the water collection tank on the movable panel away from the fixed panel is closed, and a drainage gap is provided between the fixed panel and the movable panel.
[0019] Compared with the prior art, the beneficial effects of this utility model are:
[0020] 1. This utility model, through the drainage component, can achieve pressurized and continuous drainage with a small diameter pipe. Moreover, the condensate in the drainage pipe flows quickly and will not form dirt deposits. It solves the problems of slow condensate flow, easy dirt accumulation causing blockage and overflow, and the need to configure large diameter pipes to occupy floor or ceiling space in traditional gravity flow natural drainage.
[0021] 2. It can simultaneously absorb condensate from the radiant floor panels on each floor and overcome gravity to discharge it upwards, allowing the air heat exchanger to be installed in any location without limitation, thus improving the installation flexibility of the air conditioning system and the energy efficiency ratio of the main unit.
[0022] 3. By pre-vacuuming and pressurizing the vacuum tank and compressed air tank, the power of the matching air compressor motor can be reduced. When used, the two work together to achieve efficient and rapid drainage and energy saving.
[0023] 4. Compared with using a small drainage pump, there is no problem of water not being able to be drawn when the vacuum of the suction pipe is broken. The operation is stable and reliable, reducing maintenance costs and repair frequency. Moreover, the total cost is lower than that of a separate drainage pump for each radiant panel, which reduces construction costs, improves market competitiveness, and broadens the market application prospects of ground radiant panel air conditioners.
[0024] 5. The ground radiant panel of this utility model has a central cavity filled with distilled water, which can efficiently transfer the cold / heat carried by the coil to the panel. The air bladder can offset the thermal expansion and contraction of the distilled water, so that the distilled water can always stick to the fixed panel to achieve the best heat conduction effect. Moreover, by setting a pointed anti-water strip at the top and a relatively hidden water collection groove, aesthetics and functionality are combined, making it very practical.
[0025] 6. In the field of radiant floor air conditioning, the thickness of the radiant floor panel with drainage components can be controlled within 50mm, and it can meet the usage requirements of various places without the need for a dehumidification system. Especially when used in high and large spaces such as waiting halls, airport waiting halls, exhibition halls, large shopping malls, theaters, hospitals and other public places, the installation position is below the human body and the operation is windless and quiet. Therefore, it can achieve greater comfort and energy saving and emission reduction effects than any existing air conditioning system, and the advantages are very obvious. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of the structure of this utility model.
[0027] Figure 2 This is a schematic diagram showing the disassembled structure of the ground radiant panel in this utility model.
[0028] Figure 3 This is a partial structural diagram of the ground radiant panel in this utility model.
[0029] Figure 4 This utility model Figure 3 A magnified structural diagram at point A.
[0030] Figure 5 This is a cross-sectional schematic diagram of the ground radiant panel in this utility model.
[0031] Figure 6 This is a schematic diagram of the internal structure of the ground radiant panel in this utility model.
[0032] Figure 7 This is a schematic diagram of the temperature control system in this utility model.
[0033] Figure 8 This is a schematic diagram of the outdoor unit in this utility model.
[0034] Figure 9 This is a partial structural diagram of the temperature regulation system in this utility model.
[0035] Figure 10 This is a schematic diagram of refrigerant operation under refrigeration condition one in this utility model.
[0036] Figure 11 This is a schematic diagram of the refrigerant operation structure in refrigeration condition two of this utility model.
[0037] Figure 12 This is a schematic diagram of the refrigerant operation structure in heating mode one of this utility model.
[0038] Figure 13 This is a schematic diagram of the refrigerant operation in heating condition two of this utility model.
[0039] The components are as follows: 100. Outdoor unit; 1. Compressor; 2. First four-way valve; 3. Air heat exchanger; 4. Electronic expansion valve; 5. Dryer filter; 6. Second four-way valve; 7. Gas-liquid separator; 8. First refrigerant pipe; 9. Second refrigerant pipe; 10. Air compressor; 11. First pressure gauge; 12. First solenoid valve; 13. Second solenoid valve; 14. Vacuum gauge; 15. Vacuum tank; 16. Third solenoid valve; 17. Fourth solenoid valve; 18. Second pressure gauge; 19. Compressed air tank; 20. Fifth solenoid valve; 21. First air pipe; 22. Second air pipe; 23. Sixth solenoid valve; 24. Seventh solenoid valve; 25. First water level control probe; 26. First air pressure drain tank; 27. First check valve; 28. Second check valve; 29. Eighth solenoid valve; 30. Ninth solenoid valve; 31. Second water level control probe; 32. Second air pressure drain tank; 33. ... 34. Condensate pipe; 35. Third check valve; 36. Fourth check valve; 37. Second condensate pipe; 38. Condensate spray head; 39. Controller; 40. Control circuit; 41. First electric valve; 42. Second electric valve; 43. Ground radiant panel; 44. Movable panel; 45. Horizontal partition; 46. Panel body; 47. Intermediate cavity; 48. Connecting cavity; 49. Water collection cavity; 50. Insulation board; 51. Distilled water; 52. Air bladder 53. Airbag support frame; 54. Panel fixing holes; 55. Support partition; 56. Coil; 57. Water collection tank; 58. Clip strip; 59. Fixing panel; 60. Rigid thermal insulation material; 61. Third condensate pipe; 62. Fourth condensate pipe; 63. Third refrigerant pipe; 64. Fourth refrigerant pipe; 65. Third air pipe; 66. Fifth condensate pipe; 67. Sixth condensate pipe; 68. Seventh condensate pipe; 69. Waterproof strip. Detailed Implementation
[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0041] Please see Figures 1-13In this embodiment of the present invention, a ground radiant air conditioner with a drainage structure includes an outdoor unit 100 and a ground radiant panel 42. The ground radiant panel 42 includes a panel 46, a central cavity 47 in the middle of the panel 46, and water collection cavities 49 on both sides of the panel 46. A coil 56 is provided inside the central cavity 47, which is filled with distilled water 51. Several transverse partitions 45 are evenly distributed inside the central cavity 47, and several airbag support frames 53 are also evenly distributed inside the central cavity 47. Each of the frames 53 is equipped with an air bladder 52, which is used to counteract the thermal expansion and contraction of distilled water. Both sides of the air bladder support frame 53 are provided with locking strips 58 for fixing the air bladder support frame 53. After the air bladder is fixed inside the air bladder support frame 53, the air bladder support frame 53 is pushed into the intermediate cavity 47 along the locking strips 58. The water collection cavity 49 is provided with several supporting partitions 55. A third condensate pipe 61 and a fourth condensate pipe 62 are arranged side-by-side at the lower end of one side of the plate body 46. A connecting cavity 48 is provided on one side of the intermediate cavity 47. The fourth condensate pipe 62 is connected to the connecting cavity 48 at one end, and the third condensate pipe 61 is connected to the adjacent water collection cavity 49 at one end. A fixed panel 59 is fixedly connected to the upper end of the plate 46 located in the middle cavity 47. A movable panel 43 is provided at the upper end of the plate 46 located in the water collection cavity 49. Several anti-water-contact strips 69 are provided on the upper surface of the movable panel 43 and the fixed panel 59. A water collection groove 57 is provided in the recess between adjacent anti-water-contact strips 69. A water level probe is provided inside the water collection cavity 49. The water collection tank 57 has a funnel-shaped opening at its upper end. The end of the water collection tank 57 on the movable panel 43 away from the fixed panel 59 is closed. A drainage gap is provided between the fixed panel 59 and the movable panel 43. The surface of the plate 46 is covered with insulation board 50. Several rigid heat insulation materials 60 are also embedded in the insulation board 50 located at the lower end of the plate 46. The rigid heat insulation materials 60 are evenly distributed. The outdoor unit 100 includes a temperature regulation system that cooperates with the coil 56 and a drainage component for draining the water collection chamber 49.
[0042] Dense anti-water-contact strips 69 are provided on the surfaces of the fixed panel 59 and the movable panel 43. When the air humidity is high, condensation is generated on its sides, which flows downward to the water collection tank 57, and then flows to the water collection chambers 49 at both ends of the floor radiant panel 42. Then it is discharged through the first condensate pipe 33 of the drainage component. The floor radiant panel 42 only needs to be connected to the first fluorine pipe 8, the second fluorine pipe 9, the third condensate pipe 61 and the fourth condensate pipe 62, which can make the floor radiant panel 42 ultra-thin, with a thickness of less than 50mm, the same as the thickness of existing ceramic tiles and solid wood flooring, which can be widely promoted and used.
[0043] The plate 46 has several panel fixing holes 54 on both sides, and the panel fixing holes 54 are evenly distributed. The panel fixing holes 54 make it easy to fix the movable panel 43 with screws. The movable panel can be opened periodically to clean the small amount of dust that enters the water collection chamber from the water collection tank.
[0044] The temperature control system includes a third fluorinated refrigerant pipe 63, a first four-way valve 2, a compressor 1, a gas-liquid separator 7, a fourth fluorinated refrigerant pipe 64, and a second four-way valve 6. The two ends of the third fluorinated refrigerant pipe 63 are respectively connected to the two ports of the first four-way valve 2. The compressor 1 and the gas-liquid separator 7 are connected in series on the third fluorinated refrigerant pipe 63. The two ends of the fourth fluorinated refrigerant pipe 64 are respectively connected to the two ports of the second four-way valve 6. The other two ports of the first four-way valve 2 are connected in series on the fourth fluorinated refrigerant pipe 64. An air heat exchanger 3, an electronic expansion valve 4, and a dryer filter 5 are connected in series on the fourth fluorinated refrigerant pipe 64. The other two ports of the second four-way valve 6 are respectively connected to the first fluorinated refrigerant pipe 8 and the second fluorinated refrigerant pipe 9. The ends of the first fluorinated refrigerant pipe 8 and the second fluorinated refrigerant pipe 9 away from the second four-way valve 6 are respectively connected to the two ports of the coil 56.
[0045] During refrigeration, there are two operating circuits, such as... Figure 10 As shown: Refrigeration operation loop one: Compressor 1 drives the refrigerant through the first four-way valve 2, air heat exchanger 3, electronic expansion valve 4, dryer filter 5, second four-way valve 6, first refrigerant pipe 8, coil 56, second refrigerant pipe 9, second four-way valve 6, first four-way valve 2, gas-liquid separator 7 and then returns to compressor 1 to complete the cycle and realize the cooling of the ground radiant panel 42;
[0046] like Figure 11 As shown: Refrigeration operation loop two: Compressor 1 drives the refrigerant through the first four-way valve 2, air heat exchanger 3, electronic expansion valve 4, dryer filter 5, second four-way valve 6, second refrigerant pipe 9, coil 56, first refrigerant pipe 8, second four-way valve 6, first four-way valve 2, gas-liquid separator 7 and then returns to compressor 1 to complete the cycle and realize the cooling of the ground radiant panel 42;
[0047] When heating, there are two operating circuits;
[0048] like Figure 12 As shown: Heating operation circuit one: The compressor 1 drives the refrigerant through the first four-way valve 2, the second four-way valve 6, the first refrigerant pipe 8, the coil 56, the second refrigerant pipe 9, the second four-way valve 6, the dryer filter 5, the electronic expansion valve 4, the air heat exchanger 3, the first four-way valve 2, the gas-liquid separator 7, and then returns to the compressor 1 to complete the cycle and realize the heating of the ground radiant panel 42;
[0049] like Figure 13As shown: Heating operation loop two: Compressor 1 drives the refrigerant through the first four-way valve 2, the second four-way valve 6, the second refrigerant pipe 9, the coil 56, the first refrigerant pipe 8, the second four-way valve 6, the dryer filter 5, the electronic expansion valve 4, the air heat exchanger 3, the first four-way valve 2, the gas-liquid separator 7, and then returns to compressor 1 to complete the cycle and realize the heating of the ground radiant panel 42;
[0050] The direction of refrigerant entering the coil 56 can be changed through the second four-way valve 6 to balance the temperature of the ground radiant panel 42 as much as possible, and avoid the phenomenon of uneven temperature between the refrigerant inlet side and the refrigerant outlet side, that is, the temperature on one side is always higher and the temperature on the other side is always lower.
[0051] The drainage assembly includes a first air pipe 21, a second pressure drainage tank 32, a first pressure drainage tank 26, and a second condensate pipe 36. One end of the first air pipe 21 is connected to a second solenoid valve 13, and the other end of the first air pipe 21 is connected to a second air pipe 22. The other end of the second air pipe 22 is connected to the end of the first air pipe 21 near the second solenoid valve 13. A first solenoid valve 12, an air compressor 10, an eighth solenoid valve 29, and a ninth solenoid valve 30 are connected in series on the second air pipe 22. A vacuum tank 15 is connected to the second air pipe 22 between the air compressor 10 and the eighth solenoid valve 29. A third solenoid valve 16 is connected to the branch pipe connecting the vacuum tank 15 and the second air pipe 22. A fifth solenoid valve 20 is connected to the air pipe 22 located between the vacuum tank 15 and the eighth solenoid valve 29. A compressed air tank 19 is connected to the end of the first air pipe 21 near the second solenoid valve 13. A fourth solenoid valve 17 is connected to the branch pipe connecting the compressed air tank 19 and the first air pipe 21. One end of the second pneumatic drain tank 32 is connected to the second air pipe 22 located between the eighth solenoid valve 29 and the ninth solenoid valve 30. A third air pipe 65 is connected to one end of the first pneumatic drain tank 26. The two ends of the third air pipe 65 are respectively connected to the first air pipe 21 and the second air pipe 22. A sixth solenoid valve 23 and a seventh solenoid valve 24 are respectively connected to both ends of the third air pipe 65. The second pneumatic drain... The other end of tank 32 is connected to a fifth condensate pipe 66, and the other end of the first pressure drain tank 26 is connected to a sixth condensate pipe 67. The ends of both the fifth and sixth condensate pipes 66 and 67, away from the first pressure drain tank 26, are connected to a second condensate pipe 36. A seventh condensate pipe 68 is also connected to the fifth condensate pipe 66, with the end of the seventh condensate pipe 68 away from the fifth condensate pipe 66 connected to the second condensate pipe 36. A fourth check valve 35 is connected to the seventh condensate pipe 68. A third check valve 34 is connected to the fifth condensate pipe 66 at a position between the seventh condensate pipe 68 and the second condensate pipe 36. The second condensate pipe 36 is located between the sixth condensate pipe 67 and the seventh condensate pipe 68. A second one-way valve 28 is connected at the position between the second condensate pipe 36 and the sixth condensate pipe 67 and the fifth condensate pipe 66. A first one-way valve 27 is connected to one end of the second condensate pipe 36. A first condensate pipe 33 is connected to one end of the first condensate pipe 33 away from the second condensate pipe 36. Pipes are led out to the third condensate pipe 61 and the fourth condensate pipe 62 respectively. A first electric valve 40 and a second electric valve 41 are respectively provided on the third condensate pipe 61 and the fourth condensate pipe 62. During operation, the vacuum tank 15 and the compressed air tank 19 are evacuated and compressed air is stored in advance, which can reduce the power configuration of the air compressor 10. During use, the vacuum tank 15 and the compressed air tank 19 assist the air compressor 10.It also achieves rapid suction and air pressure removal of condensate, providing excellent condensate removal; because it avoids the vacuum failure issue common in water pump drainage methods (where the water level controller malfunctions and the water level drops below the pump's suction port, causing air to be drawn in), it operates stably and reliably.
[0052] During operation, the first pressure drainage tank 26 and the second pressure drainage tank 32 operate alternately, continuously drawing water from the water collection chamber 49 and then applying air pressure to discharge the condensate drawn into the first pressure drainage tank 26 and the second pressure drainage tank 32, thereby continuously removing condensate from all the ground radiant panels. During this process, the vacuum tank 15 and the compressed air tank 19 supplement the air compressor 10 to quickly create a vacuum and rapidly increase the air pressure. The air compressor 10 then evacuates the vacuum tank 15 and the compressed air tank 19. During the entire process of air supply and replenishment, the air volume remains constant. After long-term operation, if there is a slight leak or excessive air pressure, the second solenoid valve 13 or the fifth solenoid valve 20 will be opened at the same time as the air compressor 10 to release and replenish air. The air compressor 10 alternately draws pressurized air from the first air pressure drain tank 26 and pours it into the second air pressure drain tank 32, and draws pressurized air from the second air pressure drain tank 32 and pours it into the first air pressure drain tank 26, which has an energy-saving effect. The vacuum tank 15 and the compressed air tank 19 only play a rapid adjustment role in the entire operation process.
[0053] The number of pressure drain tanks can be increased according to usage needs, which can increase the condensate drainage volume and improve the continuity of condensate drainage.
[0054] The end of the second condensate pipe 36 away from the first condensate pipe 33 is connected to a condensate spray head 37. The condensate spray head 37 is located near the air heat exchanger 3 and is used to spray the air heat exchanger 3. The condensate discharged from the second condensate pipe 36 can be sprayed onto the surface cooler of the air heat exchanger 3, which can improve the compressor's refrigeration efficiency.
[0055] The second air pressure drain tank 32 is equipped with a second water level control probe 31, the first air pressure drain tank 26 is equipped with a first water level control probe 25, the compressed air tank 19 is equipped with a second pressure gauge 18, the vacuum tank 15 is equipped with a vacuum gauge 14, the second air pipe 22 is located between the first solenoid valve 12 and the air compressor 10 and is equipped with a first pressure gauge 11, the outdoor unit 100 is also equipped with a controller 38, and the controller 38 is electrically connected to several control lines 39. The second water level control probe 31, the first water level control probe 25, the second pressure gauge 18, and the vacuum tank 15 are all part of the second air pressure drain tank 22. Table 14 and the first pressure gauge 11 are electrically connected to the controller 38. The first pressure gauge 11 and the second pressure gauge 18 can detect the internal pressure of the compressed air tank 19 and the pipeline, respectively. The vacuum gauge 14 can detect the internal vacuum of the vacuum tank 15. The second water level control probe 31 and the first water level control probe 25 can detect the internal water level of the first air pressure drain tank 26 and the second air pressure drain tank 32, and transmit various signals to the controller 38. The controller 38 automatically controls the opening and closing of the corresponding solenoid valves and electric valves (electrical connections not shown) according to the various signals.
[0056] The working principle of the drainage structure of this utility model is as follows:
[0057] System standby: Air compressor 10 is turned on, and simultaneously the first solenoid valve 12, the third solenoid valve 16, and the fourth solenoid valve 17 are opened. Other solenoid valves remain closed. Air compressor 10 begins to evacuate vacuum tank 15 and fill compressed air tank 19 with air. When the negative pressure on vacuum gauge 14 of vacuum tank 15 reaches the set value, the third solenoid valve 16 is closed, and the fifth solenoid valve 20 is opened. Air compressor 10 directly draws in external air and continues to fill compressed air tank 19 with air. When the air pressure in compressed air tank 19 reaches the set value, the fourth solenoid valve 17 and the fifth solenoid valve 20 are closed, and air compressor 10 is turned off. The system enters standby mode.
[0058] System operation: When the water level in the water collection chamber 49 of the ground radiant panel 42 reaches the set value and the water level detector sends a signal, the air compressor 10, the third solenoid valve 16, the fourth solenoid valve 17, the sixth solenoid valve 23, the ninth solenoid valve 30, and the electric valve (40 or 41) of the radiant panel that needs drainage are slowly opened. At this time, a negative pressure state is formed in the first air pressure drainage tank 26, the first one-way valve 27 is opened and the second one-way valve 28 is closed. The condensate in the water collection chamber 49 is sucked into the first air pressure drainage tank 26 by the negative pressure through the first condensate pipe 33, and the second air pressure drainage tank 32 is filled with compressed air to squeeze out the accumulated water. When the water level in the first pressure drain tank 26 reaches the upper limit of the set value, the first water level control probe 25 sends a signal. Simultaneously, when the water level in the second pressure drain tank 32 reaches the lower limit of the set value, the sixth solenoid valve 23, the ninth solenoid valve 30, the third solenoid valve 16, and the fourth solenoid valve 17 are closed, while the eighth solenoid valve 29 and the seventh solenoid valve 24 are opened. The air compressor 10 remains running, drawing in compressed air from the second pressure drain tank 32 and injecting it into the first pressure drain tank 26, creating a positive pressure inside the first pressure drain tank 26. At this time, the first one-way valve 27 is closed, and the second one-way valve 28 is open. The pressurized air forces the condensate already drawn into the first pressure drain tank 26 out of the first pressure drain tank 26 and into the second condensate pipe 36, spraying it onto the surface cooler of the air heat exchanger 3 through the condensate spray nozzle 37. Water cooling, after a 5-second delay, when the second pressure drain tank is about to experience negative pressure, the third solenoid valve 16 and the fourth solenoid valve 17 are opened to continue squeezing the condensate in the first pressure drain tank 26 to the outside. Meanwhile, the second pressure drain tank 32 is quickly evacuated by the air compressor 10 and the vacuum tank 15, and the fifth condensate pipe 66 is under negative pressure. The second one-way valve 34 is opened, the fourth one-way valve 35 is closed, and the electric valve (40 or 41) of the ground radiant panel 42 that needs to be drained is slowly opened. The condensate in the water collection chamber 49 continues to be drawn into the second pressure drain tank 32 under negative pressure and runs according to the drainage procedure of the first pressure drain tank 26. In this way, the first pressure drain tank 26 and the second pressure drain tank 32 continuously and alternately draw in and discharge condensate, achieving the purpose of removing the condensate in the water collection chamber 49 of all ground radiant panels 42.
[0059] The first electric valve 40 and the second electric valve 41, which are equipped with the ground radiant panel 42, automatically close after the condensate water level drops to the lowest position and the equipped water level detector sends a signal. When all the electric valves equipped with the ground radiant panel 42 are closed, the air compressor stops running according to the feedback signal, all related solenoid valves close, and the system re-enters standby mode.
[0060] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Although this specification describes embodiments, not every embodiment contains only one technical solution. This method of description is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A ground radiant air conditioner with a drainage structure, comprising an outdoor unit (100) and a ground radiant panel (42), characterized in that: The ground radiant panel (42) includes a panel (46), a central cavity (47) in the middle of the panel (46), water collection cavities (49) on both sides of the panel (46), a coil (56) inside the central cavity (47), distilled water (51) inside the central cavity (47), several transverse partitions (45) evenly distributed inside the central cavity (47), several airbag support frames (53) evenly distributed inside the central cavity (47), each airbag support frame (53) is equipped with an airbag (52), and clips (58) for fixing the airbag support frame (53) are provided on both sides of the airbag support frame (53). Several support partitions (55) are provided inside the water collection cavity (49), and a third condensate is arranged side by side at the lower end of one side of the panel (46). The intermediate cavity (47) has a connecting cavity (48) on one side, which is connected to a water collection cavity (49) on one side. One end of the fourth condensate pipe (62) is connected to the connecting cavity (48), and one end of the third condensate pipe (61) is connected to the adjacent water collection cavity (49). The plate (46) is fixedly connected to a fixed panel (59) at the upper end of the intermediate cavity (47). The plate (46) is provided with a movable panel (43) at the upper end of the water collection cavity (49). The upper surfaces of the movable panel (43) and the fixed panel (59) are provided with several anti-water-contact strips (69). A water collection groove (57) is provided in the recess between adjacent anti-water-contact strips (69). A water level detector is provided inside the water collection cavity (49). The outdoor unit (100) includes a temperature control system that works in conjunction with the coil (56) and a drainage assembly for draining water from the water collection chamber (49).
2. A ground radiant air conditioner with a drainage structure according to claim 1, characterized in that, The temperature control system includes a third fluorinated refrigerant pipe (63), a first four-way valve (2), a compressor (1), a gas-liquid separator (7), a fourth fluorinated refrigerant pipe (64), and a second four-way valve (6). The two ends of the third fluorinated refrigerant pipe (63) are respectively connected to the two ports of the first four-way valve (2). The compressor (1) and the gas-liquid separator (7) are connected in series on the third fluorinated refrigerant pipe (63). The two ends of the fourth fluorinated refrigerant pipe (64) are respectively connected to the two ports of the second four-way valve (6). The other two ports of the first four-way valve (2) are connected in series on the fourth fluorinated refrigerant pipe (64). An air heat exchanger (3), an electronic expansion valve (4), and a dryer filter (5) are connected in series on the fourth fluorinated refrigerant pipe (64). The other two ports of the second four-way valve (6) are respectively connected to the first fluorinated refrigerant pipe (8) and the second fluorinated refrigerant pipe (9). The ends of the first fluorinated refrigerant pipe (8) and the second fluorinated refrigerant pipe (9) away from the second four-way valve (6) are respectively connected to the two ports of the coil (56).
3. A ground radiant air conditioner with a drainage structure according to claim 1, characterized in that, The drainage assembly includes a first air pipe (21), a second pressure drainage tank (32), a first pressure drainage tank (26), and a second condensate pipe (36). One end of the first air pipe (21) is connected to a second solenoid valve (13), and the other end of the first air pipe (21) is connected to a second air pipe (22). The other end of the second air pipe (22) is connected to the end of the first air pipe (21) near the second solenoid valve (13). The second air pipe (22) is connected in series with the first solenoid valve (12), the air compressor (10), the eighth solenoid valve (29), and the ninth solenoid valve (30). The second air pipe (22) is connected between the air compressor (10) and the eighth solenoid valve (29). A vacuum tank (15) is connected to a branch pipe that connects the vacuum tank (15) to the second air pipe (22), and a third solenoid valve (16) is connected to the branch pipe that connects the vacuum tank (15) to the second air pipe (22) between the vacuum tank (15) and the eighth solenoid valve (29). A fifth solenoid valve (20) is connected to the branch pipe that connects the first air pipe (21) to the second solenoid valve (13). A compressed air tank (19) is connected to the branch pipe that connects the compressed air tank (19) to the first air pipe (21), and a fourth solenoid valve (17) is connected to the branch pipe that connects the compressed air tank (19) to the first air pipe (21). One end of the second pneumatic drain tank (32) is connected to the branch pipe that connects the second air pipe (22) between the eighth solenoid valve (29) and the ninth solenoid valve (30). One end of the first pneumatic drain tank (26) is connected to a... The third air pipe (65) is connected to the first air pipe (21) and the second air pipe (22) at both ends. A sixth solenoid valve (23) and a seventh solenoid valve (24) are connected to both ends of the third air pipe (65). A fifth condensate pipe (66) is connected to the other end of the second pressure drain tank (32). A sixth condensate pipe (67) is connected to the other end of the first pressure drain tank (26). The ends of both the fifth condensate pipe (66) and the sixth condensate pipe (67) furthest from the first pressure drain tank (26) are connected to the second condensate pipe (36). A seventh condensate pipe (68) is also connected to the fifth condensate pipe (66). The end of the fifth condensate pipe (66) away from the second condensate pipe (36) is connected to the second condensate pipe (36). A fourth check valve (35) is connected to the seventh condensate pipe (68). A third check valve (34) is connected to the fifth condensate pipe (66) located between the seventh condensate pipe (68) and the second condensate pipe (36). A second check valve (28) is connected to the second condensate pipe (36) located between the sixth condensate pipe (67) and the seventh condensate pipe (68). A first check valve (27) is connected to the second condensate pipe (36) located between the sixth condensate pipe (67) and the fifth condensate pipe (66). One end of the second condensate pipe (36) is connected to the first condensate pipe (33).The ends of the third condensate pipe (61) and the fourth condensate pipe (62) furthest from the intermediate cavity (47) are both connected to the first condensate pipe (33). The third condensate pipe (61) and the fourth condensate pipe (62) are respectively equipped with a first electric valve (40) and a second electric valve (41).
4. A ground radiant air conditioner with a drainage structure according to claim 3, characterized in that, The second condensate pipe (36) is connected to a condensate spray head (37) at the end away from the first condensate pipe (33). The condensate spray head (37) is located near the air heat exchanger (3) and is used to spray the air heat exchanger (3).
5. A ground radiant air conditioner with a drainage structure according to claim 1, characterized in that, The surface of the plate (46) is covered with insulation board (50), and a number of rigid heat insulation materials (60) are embedded in the insulation board (50) located at the lower end of the plate (46). The rigid heat insulation materials (60) are evenly distributed.
6. A ground radiant air conditioner with a drainage structure according to claim 3, characterized in that, The second air pressure drain tank (32) is equipped with a second water level control probe (31), and the first air pressure drain tank (26) is equipped with a first water level control probe (25).
7. A ground radiant air conditioner with a drainage structure according to claim 6, characterized in that, The compressed air tank (19) is equipped with a second pressure gauge (18), the vacuum tank (15) is equipped with a vacuum gauge (14), and the second air pipe (22) is located between the first solenoid valve (12) and the air compressor (10) and is equipped with a first pressure gauge (11).
8. A ground radiant air conditioner with a drainage structure according to claim 7, characterized in that, The outdoor unit (100) is also equipped with a controller (38), which is electrically connected to several control lines (39). The second water level control probe (31), the first water level control probe (25), the second pressure gauge (18), the vacuum gauge (14) and the first pressure gauge (11) are electrically connected to the controller (38).
9. A ground radiant air conditioner with a drainage structure according to claim 1, characterized in that, The plate (46) has several panel fixing holes (54) on both sides, and the panel fixing holes (54) are evenly distributed.
10. A ground radiant air conditioner with a drainage structure according to claim 1, characterized in that, The upper end of the water collection tank (57) is provided with a trumpet-shaped opening. The end of the water collection tank (57) on the movable panel (43) away from the fixed panel (59) is closed. A drainage gap is provided between the fixed panel (59) and the movable panel (43).