Heating ventilation air conditioner waste heat utilization device

Abstract

The utility model discloses a heating ventilation air conditioner waste heat utilization device, and relates to the technical field of waste heat utilization devices. The heating ventilation air conditioner waste heat utilization device comprises a heat preservation box body, a cold water storage tank is arranged on the outer side of the heat preservation box body, a spiral air guide pipe is fixedly connected to the interior of the heat preservation box body, the end of the spiral air guide pipe is fixedly connected with a wind gathering cover, and the outer surface of the spiral air guide pipe is fixedly connected with a spiral water guide shell. A hot water heat preservation box is arranged in the heat preservation box, a water injection head and a water suction pump are arranged at the top of the cold water storage box, a first guide pipe is arranged at the top of the water suction pump, the end, away from the water suction pump, of the first guide pipe is fixedly connected to the end of a spiral water guide shell, and a second guide pipe is fixedly connected to the end, away from the first guide pipe, of the spiral water guide shell. According to the heat preservation box, the utilization rate of energy is increased, and energy waste can be reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of waste heat utilization devices, specifically a waste heat utilization device for heating, ventilation, and air conditioning systems. Background Technology

[0002] Heating, ventilation, and air conditioning (HVAC) refers to air conditioning systems that use air, water, or other media for heating, ventilation, and air conditioning. In existing HVAC systems, the outdoor unit generates a large amount of waste heat during operation. This waste heat is usually directly discharged into the atmosphere, which not only wastes energy but may also have adverse environmental impacts. To make full use of this waste heat, various waste heat recovery devices have emerged on the market. However, existing air conditioning waste heat recovery devices suffer from low heat exchange efficiency, insufficient waste heat recovery, and limited functionality, resulting in poor practicality. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a waste heat recovery device for HVAC systems, thereby solving the existing problems mentioned in the background section.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a waste heat utilization device for HVAC systems, comprising an insulated box, a cold water storage tank on the outside of the insulated box, a spiral air guide pipe fixedly connected inside the insulated box, a wind concentrator fixedly connected to the end of the spiral air guide pipe, a spiral water guide shell fixedly connected to the outer surface of the spiral air guide pipe, a hot water insulated box inside the insulated box, a water injection head and a water pump on the top of the cold water storage tank, a first conduit on the top of the water pump, a first conduit fixedly connected at the end away from the water pump to the end of the spiral water guide shell, a second conduit fixedly connected at the end of the spiral water guide shell away from the first conduit, and a shelf fixedly connected to the inner wall of the insulated box.

[0005] Preferably, the outer surface of the insulated box is provided with a door, and both ends of the spiral air guide pipe penetrate the insulated box and extend to the outside.

[0006] Preferably, the outer surface of the wind-gathering hood is provided with a heat-insulating layer, and the wind-gathering hood is located on the side of the heat-insulating box away from the cold water storage tank.

[0007] Preferably, the outer surface of the first conduit penetrates the insulation box and extends into the inner cavity, and the end of the second conduit away from the spiral water guide shell is fixedly connected to the inside of the hot water insulation box.

[0008] Preferably, the outer surface of the hot water insulation tank is provided with a liquid level sensor, a temperature sensor, a water outlet pipe and a display screen. The detection ends of the liquid level sensor and the temperature sensor are both located inside the hot water insulation tank, and the water outlet pipe is provided with an on / off valve.

[0009] Preferably, the spiral water-guiding shell is disposed in the inner cavity of the heat preservation box, and the storage plate is disposed above the spiral water-guiding shell. Beneficial effects

[0010] This utility model provides a waste heat recovery device for HVAC systems. It has the following beneficial effects:

[0011] (1) The HVAC waste heat recovery device significantly increases the heat exchange area through the double spiral structure design of the spiral air guide pipe and the spiral water guide shell, so that the hot air discharged from the outdoor unit of the air conditioner can fully exchange heat with the cold water in a countercurrent manner, thereby improving the waste heat recovery efficiency. This design not only improves the energy utilization rate, but also helps to reduce energy waste.

[0012] (2) The heat loss during the heat exchange process of the heat exchanger is effectively captured by the heat exchanger through the heat exchanger box and the storage plate. Since the hot air will rise, the storage plate inside the heat exchanger box can be used to place items that need to be insulated. The rising hot air can keep the items warm, which further improves the utilization rate of waste heat. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

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

[0015] Figure 3 This is a partial structural schematic diagram of the present invention.

[0016] In the diagram: 1. Insulated box; 2. Cold water storage tank; 3. Box door; 4. Spiral air guide pipe; 5. Air condenser hood; 6. Insulation layer; 7. Spiral water guide shell; 8. Hot water insulated box; 9. Water inlet head; 10. Water pump; 11. First conduit; 12. Second conduit; 13. Liquid level sensor; 14. Temperature sensor; 15. Water outlet pipe; 16. On / off valve; 17. Display screen; 18. Shelf. Detailed Implementation

[0017] 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. Example

[0018] like Figure 1-3 As shown, this utility model provides a waste heat utilization device for HVAC systems, including an insulated box 1, a cold water storage tank 2 disposed on the outside of the insulated box 1, a spiral air guide pipe 4 fixedly connected inside the insulated box 1, a wind concentrator 5 fixedly connected to the end of the spiral air guide pipe 4, a spiral water guide shell 7 fixedly connected to the outer surface of the spiral air guide pipe 4, a hot water insulated box 8 disposed inside the insulated box 1, a water injection head 9 and a water pump 10 disposed on the top of the cold water storage tank 2, a first conduit 11 disposed on the top of the water pump 10, one end of the first conduit 11 away from the water pump 10 fixedly connected to the end of the spiral water guide shell 7, a second conduit 12 fixedly connected to the end of the spiral water guide shell 7 away from the first conduit 11, and a shelf 18 fixedly connected to the inner wall of the insulated box 1.

[0019] Specifically, the outer surface of the insulated box 1 is provided with a door 3, and both ends of the spiral air duct 4 penetrate the insulated box 1 and extend to the outside.

[0020] Specifically, the outer surface of the wind-concentrating hood 5 is provided with an insulation layer 6, and the wind-concentrating hood 5 is located on the side of the insulation box 1 away from the cold water storage tank 2.

[0021] Specifically, the outer surface of the first conduit 11 penetrates the insulation box 1 and extends into the inner cavity, and the end of the second conduit 12 away from the spiral water guide shell 7 is fixedly connected to the inside of the hot water insulation box 8.

[0022] Specifically, the outer surface of the hot water insulation tank 8 is equipped with a liquid level sensor 13, a temperature sensor 14, a water outlet pipe 15, and a display screen 17. The detection ends of the liquid level sensor 13 and the temperature sensor 14 are both located inside the hot water insulation tank 8, and an on / off valve 16 is installed inside the water outlet pipe 15.

[0023] Specifically, the spiral water-guiding shell 7 is installed inside the heat-insulating box 1, and the shelf 18 is installed above the spiral water-guiding shell 7.

[0024] The working principle and beneficial effects of the above embodiments.

[0025] In use, the air shroud 5 is aligned with the exhaust port of the HVAC outdoor unit, allowing the hot air exhausted from the outdoor unit to enter the air shroud 5 and then into the spiral air guide pipe 4. Simultaneously, the water pump 10 is activated to extract cold water from the cold water storage tank 2. The cold water flows through the first conduit 11 into the spiral water guide housing 7. In the spiral path, the cold water exchanges heat with the hot air in the spiral air guide pipe 4 in a counter-current manner, absorbing heat and rising in temperature. It is then transported through the second conduit 12 to the hot water insulation tank 8 for storage. The hot water insulation tank 8 has a built-in level sensor 13 and a temperature sensor 14 to monitor the water level and temperature in real time. The data is displayed visually on the screen 17. Users can take hot water as needed through the water outlet pipe 15 and the on / off valve 16. The double spiral structure design of the spiral air guide pipe 4 and the spiral water guide shell 7 significantly increases the heat exchange area. Combined with the heat insulation layer of the heat preservation box 1, it further reduces heat loss and improves the waste heat recovery efficiency. The heat lost by the combination of the spiral air guide pipe 4 and the spiral water guide shell 7 will enter the inner cavity of the heat preservation box 1. Since the hot air will rise, the items that need to be kept warm can be placed on the shelf 18. The rising hot air can keep the items warm and further improve the waste heat utilization rate.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0027] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A waste heat recovery device for HVAC systems, comprising an insulated enclosure (1), characterized in that: A cold water storage tank (2) is provided on the outside of the heat-insulating box (1). A spiral air guide pipe (4) is fixedly connected inside the heat-insulating box (1). A wind-gathering cover (5) is fixedly connected to the end of the spiral air guide pipe (4). A spiral water guide shell (7) is fixedly connected to the outer surface of the spiral air guide pipe (4). A hot water heat-insulating box (8) is provided inside the heat-insulating box (1). A water injection head (9) and a water pump (10) are provided on the top of the cold water storage tank (2). A first conduit (11) is provided on the top of the water pump (10). One end of the first conduit (11) away from the water pump (10) is fixedly connected to the end of the spiral water guide shell (7). A second conduit (12) is fixedly connected to the end of the spiral water guide shell (7) away from the first conduit (11). A shelf (18) is fixedly connected to the inner wall of the heat-insulating box (1).

2. The HVAC waste heat recovery device according to claim 1, characterized in that: The outer surface of the insulated box (1) is provided with a door (3), and both ends of the spiral air duct (4) penetrate the insulated box (1) and extend to the outside.

3. The HVAC waste heat recovery device according to claim 1, characterized in that: The outer surface of the wind-gathering hood (5) is provided with a heat-insulating layer (6), and the wind-gathering hood (5) is located on the side of the heat-insulating box (1) away from the cold water storage tank (2).

4. The HVAC waste heat recovery device according to claim 1, characterized in that: The outer surface of the first conduit (11) penetrates the heat preservation box (1) and extends into the inner cavity, and the end of the second conduit (12) away from the spiral water guide shell (7) is fixedly connected to the inside of the hot water heat preservation box (8).

5. The HVAC waste heat recovery device according to claim 1, characterized in that: The outer surface of the hot water insulation tank (8) is provided with a liquid level sensor (13), a temperature sensor (14), a water outlet pipe (15) and a display screen (17). The detection ends of the liquid level sensor (13) and the temperature sensor (14) are both located inside the hot water insulation tank (8). The water outlet pipe (15) is provided with an on / off valve (16).

6. The HVAC waste heat recovery device according to claim 1, characterized in that: The spiral water-guiding shell (7) is located in the inner cavity of the heat preservation box (1), and the storage plate (18) is located above the spiral water-guiding shell (7).

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