Air conditioning unit with U-shaped heat pipe

Abstract

The utility model belongs to the technical field of air conditioning equipment, and particularly relates to an air conditioning unit with U-shaped heat pipes, which comprises a unit body, a heat exchange coil and a fan, the heat exchange coil and the fan are arranged in the unit body, an air inlet channel is arranged on one side of the unit body, an air outlet channel is arranged on the other side of the unit body, and a plurality of first U-shaped heat pipes are arranged in the unit body and used for utilizing heat in inlet air. Wherein the multiple first U-shaped heat pipes surround the heat exchange coil pipe at equal intervals, one side of each first U-shaped heat pipe is aligned to the air inlet channel, and the other side of each first U-shaped heat pipe is aligned to the air outlet channel; according to the air conditioning unit with the U-shaped heat pipes, the first U-shaped heat pipes conduct heat in inlet air to the other side (a reheating section), meanwhile, the heat exchange coil pipe is in a refrigeration state and absorbs heat of the first U-shaped heat pipes aligned to the air outlet channel, reheating is achieved, no additional reheating device needs to be additionally arranged on the air conditioning unit, inlet air is cooled freely, and the air conditioning unit is more energy-saving and environment-friendly. The cold and heat offset phenomenon of an original air conditioning unit is avoided, energy-saving operation is achieved, the capacity of the air conditioning unit is reduced, and the production cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of air conditioning equipment technology, and in particular relates to an air conditioning unit with a U-shaped heat pipe. Background Technology

[0002] An air conditioning unit is a device for air handling.

[0003] For example, Chinese utility model patent application number 202323504807.2 discloses a thermal radiation air conditioning system, which includes: a refrigerant pump unit, a ground source heat pump unit, and a fresh air unit. The refrigerant pump unit includes a compressor, an exhaust condenser, a reheat condenser, and an evaporator. The ground source heat pump unit includes a surface cooler, a precooling water coil, and a reheat water coil. The inlet and outlet of the surface cooler and the precooling water coil are respectively connected to the main water supply pipeline through control pipelines. The inlet and outlet of the precooling water coil are connected to the inlet and outlet of the reheat water coil through a reheat circulation pipeline. A reheat circulation pump is provided on the reheat circulation pipeline. The fresh air unit includes a fresh air supply area, which includes a dehumidification and reheat section. The dehumidification and reheat section includes the precooling water coil, the surface cooler, the evaporator, the reheat condenser, and the reheat water coil arranged sequentially along the fresh air flow direction.

[0004] Cigarette factories often require constant temperature and humidity environments, resulting in significant demand and energy consumption for air conditioning units, especially in summer. During summer operation, these air conditioners frequently experience a cooling-heating imbalance due to subcooling and reheating, which is detrimental to energy conservation and environmental protection. Furthermore, traditional air conditioning units require larger coils for subcooling and dehumidification, followed by reheating to the air supply point. This necessitates larger coils, leading to a larger air conditioning unit system, increased equipment costs, and higher production costs. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned technical problems by providing an air conditioning unit with a U-shaped heat pipe, thereby achieving the effects of saving energy consumption and reducing production costs.

[0006] In view of this, the present invention provides an air conditioning unit with U-shaped heat pipes, including a body and a heat exchange coil and a fan disposed in the body. The body has an air inlet channel on one side and an air outlet channel on the other side. The feature is that the body is provided with a plurality of first U-shaped heat pipes for utilizing the heat in the inlet air.

[0007] Among them, several of the first U-shaped heat pipes are evenly spaced around the heat exchange coil, with one side of the first U-shaped heat pipe aligned with the air inlet channel and the other side aligned with the air outlet channel.

[0008] In this technical solution, the hot air entering through the air inlet duct is first blown to one side of several first U-shaped heat pipes. The heat in the air is then transferred to the other side (reheat section) aligned with the air outlet duct through the first U-shaped heat pipes. At the same time, the heat exchange coil is in a cooling state and absorbs the heat from the first U-shaped heat pipes aligned with the air outlet duct, thus achieving reheating. Therefore, this air conditioning unit does not require an additional reheating device. The air inlet receives free cooling as it passes through the other side (reheat section) of the first U-shaped heat pipes, solving the problem of heat and cold offsetting in the original air conditioning unit and achieving energy-saving operation. In addition, the elimination of the reheating device reduces the capacity of the air conditioning unit and lowers production costs.

[0009] Furthermore, one end of each of the first U-shaped heat pipes is connected to a first horizontal square pipe, and the other end is connected to a second horizontal square pipe.

[0010] The first and second horizontal square tubes are fixed to the inner wall of the machine body, and the front and rear ends of the first and second horizontal square tubes are connected by a first connecting pipe.

[0011] Furthermore, the right end face of the first horizontal square tube is connected to a plurality of second U-shaped heat pipes near the inner wall of the machine body, and the machine body is provided with a shielding structure to block the second U-shaped heat pipes.

[0012] The shielding structure includes an upper baffle and a movable baffle. The upper baffle is fixed inside the machine body and located above the second U-shaped heat pipe. The movable baffle is sleeved on the rotating shaft and can block the right side of the second U-shaped heat pipe. One end of the rotating shaft extends out of the machine body and is driven by a motor.

[0013] Furthermore, a temperature sensor is installed on the air outlet duct, and a control box is installed inside the machine body;

[0014] The control box contains a power supply and a PLC connected by wires. The temperature sensor is connected to the PLC via a first wire, and the motor is connected to the PLC via a second wire. The PLC controls the motor to rotate by comparing the temperature set by the air conditioning unit with the actual temperature detected by the temperature sensor according to a pre-set program.

[0015] Furthermore, the body includes a box and a cover plate that are detachably connected by several bolts, and the first and second horizontal square tubes are fixed to the inner wall of the box by adhesive or welding.

[0016] Furthermore, the first U-shaped heat pipe, the first horizontal square pipe, the second horizontal square pipe, the first connecting pipe, and the second U-shaped heat pipe are filled with purified water.

[0017] Furthermore, adjacent first U-shaped heat pipes aligned with the air outlet channel are connected by several equally spaced second connecting pipes.

[0018] Furthermore, a filter layer is provided inside the air inlet channel.

[0019] The beneficial effects of this utility model are:

[0020] 1. The hot air entering through the air inlet duct is first blown to one side of several first U-shaped heat pipes. The heat in the air is then transferred through the first U-shaped heat pipes to the other side (reheat section) aligned with the air outlet duct. At the same time, the heat exchange coil is in cooling mode and absorbs the heat from the first U-shaped heat pipes aligned with the air outlet duct, thus achieving reheating. Therefore, this air conditioning unit does not require an additional reheating device. The air inlet receives free cooling as it passes through the other side (reheat section) of the first U-shaped heat pipes, solving the problem of heat and cold offsetting in the original air conditioning unit and achieving energy-saving operation. In addition, the elimination of the reheating device reduces the capacity of the air conditioning unit and lowers production costs.

[0021] 2. The arrangement of the first and second horizontal square tubes allows several first U-shaped heat pipes to be connected, which not only facilitates heat conduction but also makes it easier to fix several first U-shaped heat pipes, resulting in better structural stability. The arrangement of the first connecting tube connects the first and second horizontal square tubes, which also facilitates heat conduction and further enhances the structural stability of the first U-shaped heat pipes, the first horizontal square tube, and the second horizontal square tube.

[0022] 3. The drive motor can rotate the shaft, which in turn causes the movable baffle to swing, either blocking or exposing the second U-shaped heat pipe. When the heat on the other side of the first U-shaped heat pipe (reheat section) is sufficient to reheat the cold air, the upper baffle and the movable baffle block the second U-shaped heat pipe, preventing it from being blown by the incoming air. When the heat on the other side of the first U-shaped heat pipe (reheat section) is insufficient to reheat the cold air, the movable baffle swings to expose the second U-shaped heat pipe, allowing the incoming air to blow towards it. More U-shaped heat pipes can absorb more heat from the incoming air to meet the reheating requirement.

[0023] 4. The PLC compares the temperature set by the air conditioning unit with the actual temperature detected by the temperature sensor according to the preset program. When the actual temperature detected by the temperature sensor (outlet air temperature) is higher than the temperature set by the air conditioning unit (set temperature), the drive motor drives the movable baffle to swing and block the second U-shaped heat pipe, so that the outlet air temperature is reduced to the set temperature. When the outlet air temperature is lower than the set temperature, the drive motor drives the movable baffle to swing and expose the second U-shaped heat pipe, so that the outlet air temperature is increased to the set temperature. The outlet air temperature is automatically adjusted to achieve a precise outlet air temperature, making it more intelligent.

[0024] 5. The enclosure and cover are detachably connected by bolts, which facilitates the assembly of the internal structure and subsequent maintenance.

[0025] 6. The first U-shaped heat pipe, the first horizontal square pipe, the second horizontal square pipe, the first connecting pipe, and the second U-shaped heat pipe are filled with pure water, which can better absorb the heat in the air intake and make the heat conduction more uniform, so as to ensure the stability of the air outlet temperature.

[0026] 7. The second connecting pipe not only increases the medium flow channel in the reheat section, making heat conduction more uniform, but also increases the flow time of the heated medium in the reheat section, thus better reheating the cold air.

[0027] 8. The filter layer can filter out impurities in the incoming air, increasing the service life of the air conditioning unit. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the internal structure of this utility model (a movable baffle shielding the second U-shaped heat pipe);

[0029] Figure 2 This is a schematic diagram of the internal structure of this utility model (the movable baffle exposes the second U-shaped heat pipe);

[0030] Figure 3 This is a structural schematic diagram of the first U-shaped heat pipe, the first horizontal square tube, and the second U-shaped heat pipe in this utility model;

[0031] Figure 4 This is a schematic diagram of the structure of the other side (reheat section) of the first U-shaped heat pipe in this utility model;

[0032] The markings in the diagram are as follows:

[0033] 1. Body; 2. Heat exchange coil; 3. Fan; 4. Air inlet channel; 5. Air outlet channel; 6. First U-shaped heat pipe; 7. First horizontal square pipe; 8. Second horizontal square pipe; 9. First connecting pipe; 10. Second U-shaped heat pipe; 11. Upper baffle; 12. Movable baffle; 13. Rotating shaft; 15. Motor; 16. Temperature sensor; 17. Control box; 18. First wire; 19. Second wire; 20. Housing; 21. Cover plate; 22. Bolt; 23. Second connecting pipe; 24. Filter screen. Detailed Implementation

[0034] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0035] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0036] Example 1:

[0037] This embodiment provides an air conditioning unit with U-shaped heat pipes, including a body 1 and a heat exchange coil 2 and a fan 3 disposed in the body 1. The body 1 has an air inlet channel 4 on one side and an air outlet channel 5 on the other side. The body 1 is provided with a plurality of first U-shaped heat pipes 6 for utilizing the heat in the inlet air.

[0038] Among them, several of the first U-shaped heat pipes 6 are equally spaced around the heat exchange coil 2, and one side of the first U-shaped heat pipe 6 is aligned with the air inlet channel 4 and the other side is aligned with the air outlet channel 5.

[0039] In this embodiment, the hot air entering through the air inlet channel 4 is first blown to one side of several first U-shaped heat pipes 6. The heat in the air is transferred to the other side (reheat section) of the air outlet channel 5 through the first U-shaped heat pipes 6. At the same time, the heat exchange coil 2 is in a cooling state and absorbs the heat from the first U-shaped heat pipes 6 aligned with the air outlet channel 5, thus achieving reheating. Therefore, this air conditioning unit does not need to add an additional reheating device. While the air entering through the other side (reheat section) of the first U-shaped heat pipes 6, it also receives free cooling treatment, solving the problem of heat and cold offsetting in the original air conditioning unit and achieving energy-saving operation. In addition, the reheating device is eliminated, reducing the capacity of the air conditioning unit and reducing production costs.

[0040] Example 2:

[0041] This embodiment provides an air conditioning unit with a U-shaped heat pipe, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0042] One end of each of the first U-shaped heat pipes 6 is connected to a first horizontal square pipe 7, and the other end is connected to a second horizontal square pipe 8;

[0043] The first horizontal tube 7 and the second horizontal tube 8 are fixed to the inner wall of the body 1, and the front and rear ends of the first horizontal tube 7 and the second horizontal tube 8 are connected by the first connecting pipe 9.

[0044] In this embodiment, the arrangement of the first horizontal square tube 7 and the second horizontal square tube 8 connects several first U-shaped heat pipes 6, which not only facilitates heat conduction but also makes it easier to fix the several first U-shaped heat pipes 6, resulting in better structural stability. The arrangement of the first connecting pipe 9 connects the first horizontal square tube 7 and the second horizontal square tube 8, which also facilitates heat conduction and further enhances the structural stability of the first U-shaped heat pipe 6, the first horizontal square tube 7, and the second horizontal square tube 8.

[0045] Example 3:

[0046] This embodiment provides an air conditioning unit with a U-shaped heat pipe, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0047] The right end face of the first horizontal square tube 7 is connected to a plurality of second U-shaped heat pipes 10 near the inner wall of the body 1, and the body 1 is provided with a shielding structure to block the second U-shaped heat pipes 10.

[0048] The shielding structure includes an upper baffle 11 and a movable baffle 12. The upper baffle 11 is fixed inside the body 1 and located above the second U-shaped heat pipe 10. The movable baffle 12 is sleeved on the rotating shaft 13 and can block the right side of the second U-shaped heat pipe 10. One end of the rotating shaft 13 extends out of the body 1 and is driven by the motor 15.

[0049] In this embodiment, the drive motor 15 can drive the rotating shaft 13 to rotate. The rotating shaft 13 drives the movable baffle 12 to swing, which can block or expose the second U-shaped heat pipe 10. When the heat on the other side (reheat section) of the first U-shaped heat pipe 6 is sufficient to reheat the cold air, the upper baffle 11 and the movable baffle 12 block the second U-shaped heat pipe 10, and the second U-shaped heat pipe 10 is not blown by the air intake. When the heat on the other side (reheat section) of the first U-shaped heat pipe 6 is insufficient to reheat the cold air, the movable baffle 12 swings to expose the second U-shaped heat pipe 10, so that the air intake can blow towards the second U-shaped heat pipe 10. More U-shaped heat pipes can absorb more heat from the air intake to meet the reheating requirement.

[0050] Example 4:

[0051] This embodiment provides an air conditioning unit with a U-shaped heat pipe, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0052] A temperature sensor 16 is provided on the air outlet duct 5, and a control box 17 is provided inside the body 1;

[0053] The control box 17 contains a power supply and a PLC connected by wires. The temperature sensor 16 is connected to the PLC via a first wire 18, and the motor 15 is connected to the PLC via a second wire 19. The PLC controls the motor 15 to rotate by comparing the temperature set by the air conditioning unit with the actual temperature detected by the temperature sensor 16 according to a pre-set program.

[0054] In this embodiment, the PLC compares the temperature set by the air conditioning unit with the actual temperature detected by the temperature sensor 16 according to a pre-set program. When the actual temperature (outlet air temperature) detected by the temperature sensor 16 is higher than the temperature set by the air conditioning unit (set temperature), the drive motor 15 drives the movable baffle 12 to swing and block the second U-shaped heat pipe 10, so that the outlet air temperature is reduced to the set temperature. When the outlet air temperature is lower than the set temperature, the drive motor 15 drives the movable baffle 12 to swing and expose the second U-shaped heat pipe 10, so that the outlet air temperature is increased to the set temperature. The outlet air temperature is automatically adjusted to achieve a precise outlet air temperature, making it more intelligent.

[0055] Example 5:

[0056] This embodiment provides an air conditioning unit with a U-shaped heat pipe, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0057] The body 1 includes a box 20 and a cover plate 21 that are detachably connected by several bolts 22. The first horizontal square tube 7 and the second horizontal square tube 8 are fixed to the inner wall of the box 20 by adhesive or welding.

[0058] In this embodiment, the housing 20 and the cover plate 21 are detachably connected by bolts 22, which facilitates the assembly of the internal structure and subsequent maintenance.

[0059] Example 6:

[0060] This embodiment provides an air conditioning unit with a U-shaped heat pipe, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0061] The first U-shaped heat pipe 6, the first horizontal square pipe 7, the second horizontal square pipe 8, the first connecting pipe 9, and the second U-shaped heat pipe 10 are filled with purified water.

[0062] In this embodiment, pure water is filled in the first U-shaped heat pipe 6, the first horizontal square pipe 7, the second horizontal square pipe 8, the first connecting pipe 9, and the second U-shaped heat pipe 10, which can better absorb the heat in the incoming air and make the heat conduction more uniform, so as to ensure the stability of the outlet air temperature.

[0063] Example 7:

[0064] This embodiment provides an air conditioning unit with a U-shaped heat pipe, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0065] The adjacent first U-shaped heat pipes 6 on one side of the air outlet channel 5 are connected by several second connecting pipes 23 arranged at equal intervals.

[0066] In this embodiment, the second connecting pipe 23 not only increases the medium flow channel in the reheat section, making heat conduction more uniform, but also increases the flow time of the heated medium in the reheat section, thus better reheating the cold air.

[0067] Example 8:

[0068] This embodiment provides an air conditioning unit with a U-shaped heat pipe, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0069] The air inlet channel 4 is equipped with a filter layer 24.

[0070] In this embodiment, the filter layer 24 can filter out impurities in the incoming air, increasing the service life of the air conditioning unit.

[0071] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. An air conditioning unit with a U-shaped heat pipe, comprising a body (1) and heat exchange coils (2) and a fan (3) disposed within the body (1), wherein the body (1) has an air inlet channel (4) on one side and an air outlet channel (5) on the other side, characterized in that... The body (1) is provided with several first U-shaped heat pipes (6) for utilizing the heat in the incoming air; Among them, several of the first U-shaped heat pipes (6) are evenly spaced around the heat exchange coil (2), and one side of the first U-shaped heat pipe (6) is aligned with the air inlet channel (4) and the other side is aligned with the air outlet channel (5).

2. An air conditioning unit with a U-shaped heat pipe according to claim 1, characterized in that, One end of each of the first U-shaped heat pipes (6) is connected to a first horizontal square pipe (7), and the other end is connected to a second horizontal square pipe (8); The first horizontal tube (7) and the second horizontal tube (8) are fixed to the inner wall of the body (1), and the front end and the rear end of the first horizontal tube (7) and the second horizontal tube (8) are connected by the first connecting pipe (9).

3. An air conditioning unit with a U-shaped heat pipe according to claim 2, characterized in that, The right end face of the first horizontal square tube (7) is connected to a plurality of second U-shaped heat pipes (10) near the inner wall of the body (1), and the body (1) is provided with a shielding structure that blocks the second U-shaped heat pipes (10); The shielding structure includes an upper baffle (11) and a movable baffle (12). The upper baffle (11) is fixed inside the body (1) and located above the second U-shaped heat pipe (10). The movable baffle (12) is sleeved on the rotating shaft (13) and can block the right side of the second U-shaped heat pipe (10). One end of the rotating shaft (13) extends out of the body (1) and is driven by a motor (15).

4. An air conditioning unit with a U-shaped heat pipe according to claim 3, characterized in that, A temperature sensor (16) is provided on the air outlet duct (5), and a control box (17) is provided inside the body (1); The control box (17) contains a power supply and a PLC connected by wires. The temperature sensor (16) is connected to the PLC through the first wire (18), and the motor (15) is connected to the PLC through the second wire (19). The PLC controls the motor (15) to rotate by comparing the temperature set by the air conditioning unit with the actual temperature detected by the temperature sensor (16) according to a pre-set program.

5. An air conditioning unit with a U-shaped heat pipe according to claim 4, characterized in that, The body (1) includes a box (20) and a cover plate (21) that are detachably connected by several bolts (22). The first horizontal square tube (7) and the second horizontal square tube (8) are fixed to the inner wall of the box (20) by adhesive or welding.

6. An air conditioning unit with a U-shaped heat pipe according to any one of claims 2-5, characterized in that, The first U-shaped heat pipe (6), the first horizontal square pipe (7), the second horizontal square pipe (8), the first connecting pipe (9), and the second U-shaped heat pipe (10) are filled with pure water.

7. An air conditioning unit with a U-shaped heat pipe according to claim 6, characterized in that, The adjacent first U-shaped heat pipes (6) aligned with the air outlet channel (5) are connected by several equally spaced second connecting pipes (23).

8. An air conditioning unit with a U-shaped heat pipe according to claim 7, characterized in that, The air inlet channel (4) is equipped with a filter layer (24).

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