Condensation heat recovery type roof air conditioning unit

Abstract

The utility model provides a condensation heat recovery type roof air conditioning unit, which relates to the technical field of air conditioning units, and comprises an air conditioning unit, a heating box and a top cover, the two sides of the bottom of the air conditioning unit are respectively communicated with one side in the heating box through a delivery pipe and a return pipe, and a heat recovery mechanism is arranged in the heating box. An auxiliary scale cleaning mechanism is arranged at the top of the heating box; air sucked into the air conditioning unit is cooled through the evaporator, heated through the heat condenser and conveyed into the air collecting chamber through the conveying pipe, the air collecting chamber conveys hot air into the U-shaped pipes, heat of the hot air is conveyed into cold water in the heating box through the U-shaped pipes, and the air conditioning unit is heated through the heat condenser. Wherein the plurality of U-shaped pipes are connected in series, so that hot air flows into the return pipe from the air collecting chamber after flowing from each U-shaped pipe, and finally flows back into the air conditioning unit through the return pipe, so that cold water in the heating box is automatically heated into hot water, and a heat recovery effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of air-conditioning units, in particular to a condensation heat recovery type rooftop air-conditioning unit. Background Art

[0002] Rooftop air conditioner is a large or medium-sized integrated air conditioning equipment with its own cold source and air cooling. Its refrigeration, heating, humidification, air supply, air purification, electrical control, etc. are assembled in a horizontal box. Because it is mostly installed on the roof, it is called a rooftop air conditioner.

[0003] In order to ensure that the ambient temperature and humidity are controlled within a certain accuracy range, the air conditioning unit is required to dehumidify, cool, heat, humidify and other processes on the air, resulting in the phenomenon of cold and heat offset. At present, there are many ways to dehumidify and cool the air and then heat it, such as electric heating, hot water heating and steam heating. Hot water and steam heating require additional heat sources, and electric heating methods will consume a lot of electricity, affecting the economy of the air conditioner operation. Therefore, the utility model proposes a condensing heat recovery type rooftop air conditioning unit to solve the above problems. Utility Model Content

[0004] In view of the above problems, the utility model proposes a condensing heat recovery type rooftop air conditioning unit to solve the problem in the prior art that hot water and steam heating require an additional heat source, while electric heating methods consume a large amount of electricity, affecting the economic efficiency of the air conditioner operation.

[0005] To achieve the purpose of the utility model, the utility model is implemented through the following technical solutions: a condensing heat recovery type rooftop air-conditioning unit, comprising an air-conditioning unit, a heating box and a top cover, a heating box is provided on one side of the air-conditioning unit, a top cover is provided on the top of the heating box, both sides of the bottom of the air-conditioning unit are connected with one side of the interior of the heating box through a delivery pipe and a return pipe respectively, a water replenishment mechanism is provided on one side of the heating box, a heat recovery mechanism is provided inside the heating box, and an auxiliary scale cleaning mechanism is provided on the top of the heating box.

[0006] Further improvement lies in that: the heat recovery mechanism includes an air collecting chamber, a U-shaped tube and a partition, a partition is installed on one side of the interior of the heating box, a plurality of U-shaped tubes are equidistantly installed on one side of the bottom of the partition, and an air collecting chamber is installed on the other side of the bottom of the partition, both ends of the U-shaped tube are connected to the interior of the air collecting chamber, and the two sides of the air collecting chamber are respectively connected to the delivery pipe and the reflux pipe.

[0007] A further improvement is that the water replenishment mechanism includes a water pump, a water inlet pipe and a water diversion pipe. A water pump is installed on one side of the heating box, the input end of the water pump is connected to the water diversion pipe, the output end of the water pump is connected to the water inlet pipe, one end of the water inlet pipe is connected to the top of the heating box, and the top of the heating box is connected to an exhaust pipe.

[0008] A further improvement is that a filter element is provided inside the water diversion pipe, and threaded tubes are symmetrically arranged at the top and bottom ends of the filter element. One end of the water diversion pipe and the input end of the water pump are both threadedly connected with a threaded joint, and the filter element is detachably connected to the water diversion pipe via the threaded joint.

[0009] A further improvement is that the auxiliary scale cleaning mechanism includes a movable plate and a mesh plate, a mesh plate is provided on the top of the heating box, a slide rail is provided on one side of the top of the heating box, a bolt is fixedly connected to one side of the movable plate, one end of the bolt passes through the interior of the slide rail and is threadedly connected with a nut.

[0010] A further improvement is that a bottom plate is provided at the bottom of the air conditioning unit, support feet are symmetrically provided on both sides of the bottom plate, and a drainage pipe is connected to the bottom of the heating box through the bottom of the bottom plate.

[0011] A further improvement is that the back side of the top of the heating box is connected to an exhaust pipe, an elbow is provided at the bottom end of the exhaust pipe, and thermal insulation cotton is provided on the outside of the exhaust pipe.

[0012] The beneficial effects of the utility model are as follows: the air sucked into the air-conditioning unit is cooled through the evaporator, heated through the hot condenser, and then transported to the interior of the air collecting chamber through the delivery pipe, and the air collecting chamber then transports the hot air to the interior of multiple U-shaped tubes, and the heat of the hot air is transported to the cold water in the heating box through the U-shaped tubes, wherein the multiple U-shaped tubes are connected in series with each other, so that after the hot air flows from each U-shaped tube, it flows from the air collecting chamber to the interior of the return pipe, and finally flows back to the interior of the air-conditioning unit through the return pipe, so as to automatically heat the cold water in the heating box into hot water, thereby playing a role of heat recovery. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is the front view of the utility model;

[0014] Figure 2 This is a schematic diagram of the top structure of the heating box of the utility model;

[0015] Figure 3 This is a schematic diagram of the internal structure of the heating box of the utility model;

[0016] Figure 4 It is a side view of the utility model;

[0017] Figure 5 For this utility model Figure 2 A partial enlarged view of point A.

[0018] Among them: 1. Air conditioning unit; 2. Heating box; 3. Top cover; 4. Delivery pipe; 5. Return pipe; 6. Movable plate; 7. Mesh plate; 8. Slide rail; 9. Bolts; 10. Nuts; 11. Drain pipe; 12. Water pump; 13. Water inlet pipe; 14. Filter element; 15. Water pipe; 16. Exhaust pipe; 17. Gas collecting chamber; 18. U-shaped pipe; 19. Partition. DETAILED DESCRIPTION

[0019] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with an embodiment. The embodiment is only used to explain the present invention and does not constitute a limitation on the protection scope of the present invention.

[0020] according to Figure 1-5 As shown, this embodiment proposes a condensing heat recovery type rooftop air-conditioning unit, including an air-conditioning unit 1, a heating box 2 and a top cover 3. A heating box 2 is provided on one side of the air-conditioning unit 1, and a top cover 3 is provided on the top of the heating box 2. The two sides of the bottom of the air-conditioning unit 1 are respectively connected with one side of the interior of the heating box 2 through a delivery pipe 4 and a return pipe 5. A water replenishment mechanism is provided on one side of the heating box 2, a heat recovery mechanism is provided inside the heating box 2, and an auxiliary scale cleaning mechanism is provided on the top of the heating box 2. When the device is in use, water is first supplied to the interior of the heating box 2 through the water replenishment mechanism, and the air sucked into the air-conditioning unit is cooled by the evaporator and then heated by the hot condenser. After that, heat is supplied to the heat recovery mechanism, and the hot air is used to heat the water, which then flows back to the interior of the air-conditioning unit 1.

[0021] The water replenishment mechanism includes a water pump 12, a water inlet pipe 13 and a water diversion pipe 15. The water pump 12 is installed on one side of the heating box 2. The input end of the water pump 12 is connected to the water diversion pipe 15, and the output end of the water pump 12 is connected to the water inlet pipe 13. One end of the water inlet pipe 13 is connected to the top of the heating box 2. The top of the heating box 2 is connected to an exhaust pipe 16 to connect the water diversion pipe 15 with an external water source. The water pump 12 can transport water to the inside of the water inlet pipe 13 through the water diversion pipe 15, and then the water is automatically transported to the inside of the heating box 2 by the water inlet pipe 13, so as to automatically replenish water to the inside of the heating box 2.

[0022] A filter element 14 is provided inside the water diversion pipe 15, and threaded pipes are symmetrically arranged at the top and bottom ends of the filter element 14. One end of the water diversion pipe 15 is threadedly connected to the input end of the water pump 12 with a threaded joint, and the filter element 14 is detachably connected to the water diversion pipe 15 through the threaded joint. A base plate is provided at the bottom of the air-conditioning unit 1, and supporting feet are symmetrically arranged on both sides of the base plate. The bottom of the heating box 2 passes through the bottom of the base plate and is connected to a drain pipe 11. Before water supply, the bottom threaded joint of the filter element 14 is aligned with the input end of the water pump 12, and then the threaded connector is rotated to install the filter element 14 on the input end of the water pump 12. Then, after aligning the bottom end of the water diversion pipe 15 with the top end of the filter element 14, the threaded connector is rotated so that the bottom end of the water diversion pipe 15 and the top end of the filter element 14 are connected to each other, so that the water sucked in by the water diversion pipe 15 will pass through the inside of the filter element 14, and the filter element 14 purifies the water, and the heated hot water is transported to the outside through the drain pipe 11.

[0023] The heat recovery mechanism includes a gas collecting chamber 17, a U-shaped tube 18 and a partition 19. A partition 19 is installed on one side of the interior of the heating box 2. A plurality of U-shaped tubes 18 are equidistantly installed on one side of the bottom of the partition 19. The gas collecting chamber 17 is installed on the other side of the bottom of the partition 19. Both ends of the U-shaped tube 18 are connected to the interior of the gas collecting chamber 17. Both sides of the gas collecting chamber 17 are connected to the delivery pipe 4 and the return pipe 5 respectively. The air sucked into the air conditioning unit is cooled by the evaporator, heated by the hot condenser, and then passed through the heat exchanger. The hot air is transported to the interior of the air collecting chamber 17 through the delivery pipe 4, and the air collecting chamber 17 then transports the hot air to the interior of multiple U-shaped tubes 18, and the heat of the hot air is transported to the cold water in the heating box 2 through the U-shaped tubes 18, wherein the multiple U-shaped tubes 18 are connected in series with each other, so that after the hot air flows through each U-shaped tube 18, it flows from the air collecting chamber 17 to the interior of the return pipe 5, and finally flows back to the interior of the air-conditioning unit 1 through the return pipe 5, so as to automatically heat the cold water in the heating box 2 into hot water, thereby playing a role of heat recovery.

[0024] The auxiliary descaling mechanism includes a movable plate 6 and a mesh plate 7. The top of the heating box 2 is provided with a mesh plate 7, and one side of the top of the heating box 2 is provided with a slide rail 8. One side of the movable plate 6 is fixedly connected with a bolt 9, and one end of the bolt 9 passes through the interior of the slide rail 8 and is threadedly connected with a nut 10. After heating water for a long time, a lot of scale will be generated on the inner wall of the heating box 2 and the outer wall of the U-shaped tube 18. Open the top cover 3 and pour the powdered descaling agent into the top of the heating box 2. At this time, the descaling agent stays on the top of the mesh plate 7 and has not completely entered the interior of the heating box 2. The nut 10 on the bolt 9 can be loosened so that it no longer clamps the slide rail 8 and the bolt 9. In this way, the movable plate 6 can reciprocate on the top of the mesh plate 7, scraping the descaling agent on the surface of the mesh plate 7, so that it is dispersed to the interior of the heating box 2 and various places of the U-shaped tube 18 through the mesh holes evenly distributed inside the mesh plate 7, thereby improving the cleaning effect of the descaling agent. As the water is heated again, the scale is dissolved in the hot water and discharged through the drain pipe 11.

[0025] The back side of the top of the heating box 2 is connected to an exhaust pipe 16, the bottom end of the exhaust pipe 16 is provided with an elbow, and the outside of the exhaust pipe 16 is provided with thermal insulation cotton. The water vapor generated during the heating of water is transported to the outside for use through the exhaust pipe 16, and the thermal insulation cotton on the outside of the exhaust pipe 16 can keep the temperature of the water vapor from being lost too much.

[0026] The rooftop air conditioning unit inhales air into the air conditioning unit, cools it through the evaporator, heats it through the hot condenser, and then is transported to the interior of the air collecting chamber 17 through the delivery pipe 4. The air collecting chamber 17 then transports the hot air to the interior of multiple U-shaped tubes 18, and the heat of the hot air is transported to the cold water in the heating box 2 through the U-shaped tubes 18. The multiple U-shaped tubes 18 are connected in series with each other, so that after the hot air flows through each U-shaped tube 18, it flows from the air collecting chamber 17 to the interior of the return pipe 5, and finally flows back to the interior of the air conditioning unit 1 through the return pipe 5, so as to automatically heat the cold water in the heating box 2 into hot water, thereby playing a role of heat recovery.

[0027] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A condensing heat recovery type rooftop air conditioning unit, comprising an air conditioning unit (1), a heating box (2) and a top cover (3), characterized in that: A heating box (2) is provided on one side of the air-conditioning unit (1), a top cover (3) is provided on the top of the heating box (2), two sides of the bottom of the air-conditioning unit (1) are respectively connected to one side of the interior of the heating box (2) via a delivery pipe (4) and a return pipe (5), a water replenishment mechanism is provided on one side of the heating box (2), a heat recovery mechanism is provided inside the heating box (2), and an auxiliary scale cleaning mechanism is provided on the top of the heating box (2); The heat recovery mechanism comprises an air collecting chamber (17), a U-shaped tube (18) and a partition (19); a partition (19) is installed on one side of the interior of the heating box (2); a plurality of U-shaped tubes (18) are installed at equal intervals on one side of the bottom of the partition (19); a air collecting chamber (17) is installed on the other side of the bottom of the partition (19); both ends of the U-shaped tube (18) are connected to the interior of the air collecting chamber (17); and both sides of the air collecting chamber (17) are connected to the delivery pipe (4) and the return pipe (5) respectively.

2. A condensing heat recovery type rooftop air conditioning unit according to claim 1, characterized in that: The water replenishment mechanism comprises a water pump (12), a water inlet pipe (13) and a water diversion pipe (15); the water pump (12) is installed on one side of the heating box (2); the input end of the water pump (12) is connected to the water diversion pipe (15); the output end of the water pump (12) is connected to the water inlet pipe (13); one end of the water inlet pipe (13) is connected to the top of the heating box (2); and the top of the heating box (2) is connected to an exhaust pipe (16).

3. A condensing heat recovery type rooftop air conditioning unit according to claim 2, characterized in that: A filter element (14) is provided inside the water diversion pipe (15), and threaded pipes are symmetrically provided at the top and bottom ends of the filter element (14). One end of the water diversion pipe (15) and the input end of the water pump (12) are both threadedly connected to a threaded joint, and the filter element (14) is detachably connected to the water diversion pipe (15) via the threaded joint.

4. A condensing heat recovery type rooftop air conditioning unit according to claim 1, characterized in that: The auxiliary scale cleaning mechanism comprises a movable plate (6) and a mesh plate (7); the mesh plate (7) is provided on the top of the heating box (2); a slide rail (8) is provided on one side of the top of the heating box (2); a bolt (9) is fixedly connected to one side of the movable plate (6); one end of the bolt (9) passes through the interior of the slide rail (8) and is threadedly connected to a nut (10).

5. The condensing heat recovery type rooftop air conditioning unit according to claim 1, characterized in that: The bottom of the air conditioning unit (1) is provided with a bottom plate, and support feet are symmetrically provided on both sides of the bottom plate. The bottom of the heating box (2) penetrates through the bottom of the bottom plate and is connected to a drainage pipe (11).

6. A condensing heat recovery type rooftop air conditioning unit according to claim 1, characterized in that: The back side of the top of the heating box (2) is connected to an exhaust pipe (16), a bend is provided at the bottom end of the exhaust pipe (16), and thermal insulation cotton is provided on the outside of the exhaust pipe (16).

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