Combined air conditioning unit

Abstract

The invention provides a combined air conditioning unit. The combined air conditioning unit comprises a fresh air and return air mixing section, a primary and medium efficiency filtering section, a middle section, a U-shaped heat pipe, an electric heating section, a humidifying section, an air feeder section and an air feeding section which are sequentially arranged. The U-shaped heat pipe comprises a heat pipe pre-cooling section, a heat pipe reheating section and a pipeline, the heat pipe pre-cooling section and the heat pipe reheating section are connected through the pipeline, the heat pipe pre-cooling section is closer to the primary and medium efficiency filtering section, and the heat pipe reheating section is closer to the electric heating section; an electromagnetic valve is arranged on the pipeline; and a surface cooling water retaining section is arranged between the heat pipe pre-cooling section and the heat pipe reheating section. According to the combined air conditioning unit, the problem of supercooling and reheating can be solved, and the energy consumption of an air conditioner can be effectively reduced.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, and in particular to a combined air conditioning unit. Background Technology

[0002] A modular air conditioning unit consists of various air handling sections. In summer, the cooling section of the constant temperature and humidity air conditioning unit is used for cooling and dehumidification, while the heating section regulates the temperature of the dehumidified air, thus controlling the indoor temperature and humidity. During this process, in order to bring the air to the set humidity level, the cooling section must provide a cooling temperature below the air's dew point to condense the moisture in the air. After dehumidification, the air becomes too cold, requiring the heating section to raise the air temperature. This subcooling and reheating condition keeps the air conditioning unit under high operating load. Therefore, there is an urgent need to develop a modular air conditioning unit that can both improve and solve the subcooling and reheating problem and effectively reduce air conditioning energy consumption. Summary of the Invention

[0003] In view of the shortcomings of the prior art described above, the purpose of this invention is to provide a combined air conditioning unit that can both improve and solve the problem of overcooling and reheating, and effectively reduce air conditioning energy consumption, so as to solve the above-mentioned problems existing in the prior art.

[0004] To solve the above-mentioned technical problems, the present invention provides a combined air conditioning unit, comprising a fresh and return air mixing section, a primary and secondary efficiency filter section, an intermediate section, a U-shaped heat pipe, an electric heating section, a humidification section, a blower section, and an air supply section arranged sequentially.

[0005] The U-shaped heat pipe includes a heat pipe precooling section, a heat pipe reheating section, and a pipeline. The pipeline connects the heat pipe precooling section and the heat pipe reheating section. The heat pipe precooling section is closer to the primary and secondary efficiency filter sections, and the heat pipe reheating section is closer to the electric heating section. A solenoid valve is provided on the pipeline. A surface cooling water baffle section is provided between the heat pipe precooling section and the heat pipe reheating section.

[0006] Preferably, a base frame is installed at the bottom of both the heat pipe precooling section and the heat pipe reheating section, and the base frame is a channel steel structure.

[0007] Preferably, each of the base frames is welded to two sides with mounting brackets, and each mounting bracket is provided with a mounting groove.

[0008] Preferably, the combined air conditioning unit further includes a back plate; the heat pipe precooling section has a precooling part connecting side, the heat pipe reheating section has a reheating part connecting side, the precooling part connecting side and the reheating part connecting side are on the same side, and the two ends of the back plate are respectively connected to the precooling part connecting side and the reheating part connecting side.

[0009] Furthermore, the heat pipe precooling section has a precooling support side, and the heat pipe reheating section has a reheating support side; the precooling support side is arranged opposite to the precooling connection side, and the reheating support side is arranged opposite to the reheating connection side; both the precooling support side and the reheating support side are provided with side brackets.

[0010] Furthermore, both the side bracket and the back plate are channel steel structures; the recess of the side bracket installed on the heat pipe reheat section faces the supporting side of the reheat section, and the recess of the side bracket installed on the heat pipe precooling section faces the supporting side of the precooling section; the recess of the back plate faces the connecting side of the precooling section and the connecting side of the reheat section.

[0011] Preferably, the solenoid valve is electrically connected to a thermostat, the thermostat is electrically connected to a temperature sensor, and the temperature sensor is installed on the heat pipe precooling section.

[0012] Preferably, the shell of the U-shaped heat pipe is an aluminum-magnesium pipe structure.

[0013] In summer, the combined air conditioning unit of this invention mixes fresh air and indoor return air in the fresh-return air mixing section, then filters them through the primary and secondary filter sections. It then passes through the intermediate section, where it is pre-cooled by the heat pipe pre-cooling section of the U-shaped heat pipe, and then cooled and dehumidified by the surface cooling water-blocking section to reach the set humidity requirement. Next, the air is heated to the set temperature by the heat pipe reheating section of the U-shaped heat pipe. If the reheating is insufficient, it is further heated by the electric heating section to reach the air supply state point, and then delivered to the controlled air-conditioned area via the air supply fan section and the air supply section. The air inlet directions of the heat pipe pre-cooling section and the surface cooling water-blocking section of the U-shaped heat pipe are opposite to each other. The reheating section of the U-shaped heat pipe is oriented in the opposite direction to the air outlet of the surface cooling water baffle section. This allows the air to be pre-cooled at zero cost through the heat pipe pre-cooling section of the U-shaped heat pipe before contacting the surface cooling water baffle section, reducing the cooling capacity of the surface cooling water baffle section. Subsequently, after the surface cooling water baffle section, the air is reheated at zero cost through the heat pipe reheating section of the U-shaped heat pipe, replacing or reducing the reheating capacity of the electric heating section. This solves the problem of high energy consumption during the overcooling and reheating operation of air conditioners in summer. This invention is a combined air conditioning unit that can both improve and solve the overcooling and reheating problem and effectively reduce air conditioning energy consumption. Attached Figure Description

[0014] Figure 1 The diagram shown is a schematic representation of the internal structure of the combined air conditioning unit in this embodiment.

[0015] Figure 2 The diagram shows a three-dimensional structure of the combined air conditioning unit in this embodiment, where both the heat pipe precooling section and the heat pipe reheating section are connected to the base frame and the side support.

[0016] Figure 3The diagram shows a three-dimensional structural schematic of the heat pipe precooling section and heat pipe reheating section of the U-shaped heat pipe in the combined air conditioning unit of this embodiment.

[0017] Figure 4 The diagram shown is a top view of the heat pipe precooling section and heat pipe reheating section of the U-shaped heat pipe in this embodiment of the combined air conditioning unit.

[0018] Figure 5 The diagram shown is a schematic of the combined air conditioning unit under the control of the thermostat in this embodiment.

[0019] Explanation of icon numbers

[0020] 1. Fresh and return air mixing section

[0021] 2. Primary and secondary filter stages

[0022] 3. Middle Section

[0023] 4 U-shaped heat pipes

[0024] 41 Heat pipe precooling section

[0025] 42 Heat pipe reheat section

[0026] 43 Back panel

[0027] 44 side supports

[0028] 45 base frame

[0029] 46 mounting brackets

[0030] 47 mounting slots

[0031] 48 Pipelines

[0032] 5 Cooling water baffle section

[0033] 6 Electric heating section

[0034] 7 Humidification Section

[0035] 8. Blower section

[0036] 9. Air supply section

[0037] 10. Solenoid valve

[0038] 11. Thermostat

[0039] 12 Temperature Sensors Detailed Implementation

[0040] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0041] Please refer to the accompanying drawings. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of the invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the invention, should still fall within the scope of the disclosed technical content. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.

[0042] like Figures 1 to 5 As shown, the combined air conditioning unit of this embodiment includes a fresh air mixing section 1, a primary and secondary filter section 2, an intermediate section 3, a U-shaped heat pipe 4, an electric heating section 6, a humidification section 7, a blower section 8, and an air supply section 9 arranged in sequence.

[0043] The U-shaped heat pipe 4 includes a heat pipe precooling section 41, a heat pipe reheating section 42, and a pipe 48. The pipe 48 connects the heat pipe precooling section 41 and the heat pipe reheating section 42. The heat pipe precooling section 41 is closer to the primary and secondary efficiency filter section 2, and the heat pipe reheating section 42 is closer to the electric heating section 6. A solenoid valve 10 is provided on the pipe 48. A surface cooling water blocking section 5 is provided between the heat pipe precooling section 41 and the heat pipe reheating section 42.

[0044] When the combined air conditioning unit of the present invention is used, under summer conditions, the fresh air and indoor return air are mixed in the fresh and return air mixing section 1, then filtered through the primary and secondary efficiency filter section 2, and then passed through the intermediate section 3. It is then pre-cooled by the heat pipe pre-cooling section 41 of the U-shaped heat pipe 4, and then cooled and dehumidified by the surface cooling water-blocking section 5 to reach the set humidity requirement. The air is then heated to the set temperature by the heat pipe reheating section 42 of the U-shaped heat pipe 4. If the reheating is insufficient, it is further heated by the electric heating section 6 to reach the air supply state point, and then delivered to the controlled air-conditioned area through the air supply fan section 8 and the air supply section 9. The heat pipe pre-cooling section 41 of the U-shaped heat pipe 4 and the air supply direction of the surface cooling water-blocking section 5 are set opposite to each other. The reheating section 42 of the U-shaped heat pipe 4 is positioned opposite to the air outlet direction of the surface cooling water baffle section 5. This allows the air to be pre-cooled at zero cost through the heat pipe pre-cooling section 41 of the U-shaped heat pipe 4 before contacting the surface cooling water baffle section 5, reducing the cooling capacity of the surface cooling water baffle section 5. Subsequently, the air is reheated at zero cost through the heat pipe reheating section 42 of the U-shaped heat pipe 4 behind the surface cooling water baffle section 5, thereby replacing or reducing the reheating capacity of the electric heating section 6 and solving the problem of high energy consumption during the overcooling and reheating operation of the air conditioner in summer. This invention is a combined air conditioning unit that can both improve and solve the overcooling and reheating problem and effectively reduce the energy consumption of the air conditioner.

[0045] To prevent condensate from affecting the performance of the heat pipe precooling section 41 and the heat pipe reheating section 42, base frames 45 are installed at the bottom of both sections. The base frames 45 are channel steel structures. The base frames 45 serve two purposes: firstly, they elevate the heat pipe precooling section 41 and the heat pipe reheating section 42, preventing condensate accumulated around the surface cooling water baffle section 5 from contacting the surfaces of the heat pipe precooling section 41 and the heat pipe reheating section 42 and affecting their performance; secondly, they facilitate the overall installation of the U-shaped heat pipe 4.

[0046] To facilitate the installation and fixation of the U-shaped heat pipe 4, mounting brackets 46 are welded to both sides of each base frame 45, and each mounting bracket 46 has a mounting groove 47. The mounting brackets 46, together with the base frame 45, provide stable support for the U-shaped heat pipe 4, and the U-shaped heat pipe 4 can be stably installed after the bolts are inserted into the mounting grooves 47 and the unit housing.

[0047] To securely connect the heat pipe precooling section 41 and the heat pipe reheating section 42, the combined air conditioning unit also includes a back plate 43. The heat pipe precooling section 41 has a precooling connection side, and the heat pipe reheating section 42 has a reheating connection side. The precooling connection side and the reheating connection side are on the same side, and the two ends of the back plate 43 are respectively connected to the precooling connection side and the reheating connection side. The heat pipe precooling section 41 and the heat pipe reheating section 42 can be stably connected and supported by the back plate 43.

[0048] To ensure effective airflow across the surfaces of the heat pipe precooling section 41 and the heat pipe reheating section 42, the heat pipe precooling section 41 has a precooling support side, and the heat pipe reheating section 42 has a reheating support side. The precooling support side is positioned opposite to the precooling connection side, and the reheating support side is positioned opposite to the reheating connection side. Side supports 44 are provided on both the precooling and reheating support sides. The side supports 44 ensure that the edges of the U-shaped heat pipe 4 remain flat, thereby guaranteeing the airtightness of the U-shaped heat pipe 4 during installation in the unit.

[0049] Both the side bracket 44 and the back plate 43 are channel steel structures. The recess of the side bracket 44 installed on the heat pipe reheat section 42 faces the support side of the reheat section, and the recess of the side bracket 44 installed on the heat pipe precooling section 41 faces the support side of the precooling section. The recess of the back plate 43 faces the connecting side of the precooling section and the connecting side of the reheat section. The back plate 43 keeps the edges of the U-shaped heat pipe 4 flat, thereby ensuring the airtightness of the U-shaped heat pipe 4 during installation in the unit.

[0050] To effectively regulate the reheat of the U-shaped heat pipe 4 using the solenoid valve 10, the solenoid valve 10 is electrically connected to the thermostat 11, and the thermostat 11 is electrically connected to the temperature sensor 12, which is installed on the heat pipe pre-cooling section 41. In this embodiment, the temperature sensor 12 is installed on the fins of the heat pipe pre-cooling section 41. The temperature sensor 12 feeds back the temperature of the heat pipe pre-cooling section 41 to the thermostat 11, which controls the solenoid valve 10. The solenoid valve 10 controls the return flow rate of the medium in the heat pipe reheat section 42 to avoid structural damage to the U-shaped heat pipe 4 and other problems caused by overcooling or overheating. The solenoid valve 10, the thermostat 11, and the temperature sensor 12 constitute an intelligent temperature control system.

[0051] To significantly reduce the weight of the U-shaped heat pipe 4 while ensuring its corrosion resistance, the casing of the U-shaped heat pipe 4 is made of aluminum-magnesium alloy. Compared to copper tubes, the U-shaped heat pipe 4 made of aluminum-magnesium alloy is lighter. Due to the relatively large volume of the U-shaped heat pipe 4, this material effectively reduces its weight and ensures its corrosion resistance during long-term operation.

[0052] Existing combined air conditioning units require reheating of the air via an electric heating section 6 after dehumidification. During summer operation, this results in overcooling and reheating, leading to high energy consumption and resource waste. This invention introduces U-shaped heat pipe 4 technology to address the problems of overcooling and reheating and high energy consumption in summer. Through the pre-cooling and reheating functions of the U-shaped heat pipe 4, zero-cost air temperature regulation is achieved, reducing energy consumption in the dehumidification and electric heating sections 6.

[0053] The application of the U-shaped heat pipe 4 and the intelligent temperature control system, compared with existing technologies and the traditional air conditioning subcooling and reheating mode, divides the U-shaped heat pipe 4 into a precooling section and a reheating section, cleverly arranged before and after the surface cooling water baffle section 5. This achieves temperature regulation of the air before and after dehumidification, effectively reducing the energy consumption of the air conditioning. The intelligent temperature control system achieves precise control of the medium return flow rate in the reheating section 42 of the heat pipe, improving the system's intelligence level and operating efficiency. This not only improves the dehumidification efficiency of the air but also significantly saves air conditioning energy consumption.

[0054] This modular air conditioning unit significantly reduces operating energy consumption through the pre-cooling and reheating functions of the U-shaped heat pipe 4, meeting current societal demands for energy conservation and emission reduction, and lowering operating costs for businesses. The application of an intelligent temperature control system prevents structural damage to the U-shaped heat pipe 4 due to overcooling or overheating, improving system stability and reliability.

[0055] The implementation of this invention can not only improve the energy efficiency of combined air conditioning units and reduce operating costs, but also contribute to energy conservation, emission reduction and sustainable development.

[0056] In summary, this invention effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0057] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A combined air conditioning unit, comprising, in sequence, a fresh air mixing section (1), a primary and secondary filter section (2), an intermediate section (3), a U-shaped heat pipe (4), an electric heating section (6), a humidification section (7), a blower section (8), and an air supply section (9); Its features are: The U-shaped heat pipe (4) includes a heat pipe precooling section (41), a heat pipe reheating section (42), and a pipeline (48). The pipeline (48) connects the heat pipe precooling section (41) and the heat pipe reheating section (42). The heat pipe precooling section (41) is closer to the primary and secondary efficiency filter section (2), and the heat pipe reheating section (42) is closer to the electric heating section (6). A solenoid valve (10) is provided on the pipeline (48). A surface cooling water blocking section (5) is provided between the heat pipe precooling section (41) and the heat pipe reheating section (42).

2. The combined air conditioning unit according to claim 1, characterized in that: A base frame (45) is installed at the bottom of both the heat pipe precooling section (41) and the heat pipe reheating section (42), and the base frame (45) is a channel steel structure.

3. The combined air conditioning unit according to claim 1, characterized in that: Each of the base frames (45) has a mounting bracket (46) welded on both sides, and each mounting bracket (46) has a mounting groove (47).

4. The packaged air conditioning unit of claim 1, wherein: It also includes a back plate (43); the heat pipe precooling section (41) has a precooling part connecting side, the heat pipe reheating section (42) has a reheating part connecting side, the precooling part connecting side and the reheating part connecting side are on the same side, and the two ends of the back plate (43) are respectively connected to the precooling part connecting side and the reheating part connecting side.

5. The packaged air conditioning unit of claim 2, wherein: The heat pipe precooling section (41) has a precooling section support side, and the heat pipe reheating section (42) has a reheating section support side; the precooling section support side is arranged opposite to the precooling section connection side, and the reheating section support side is arranged opposite to the reheating section connection side; both the precooling section support side and the reheating section support side are provided with side brackets (44).

6. The packaged air conditioning unit of claim 3, wherein: Both the side bracket (44) and the back plate (43) are channel steel structures; the recess of the side bracket (44) installed on the heat pipe reheat section (42) faces the side support of the reheat section, and the recess of the side bracket (44) installed on the heat pipe precooling section (41) faces the side support of the precooling section; the recess of the back plate (43) faces the connecting side of the precooling section and the connecting side of the reheat section.

7. The packaged air conditioning unit of claim 1, wherein: The solenoid valve (10) is electrically connected to the thermostat (11), the thermostat (11) is electrically connected to the temperature sensor (12), and the temperature sensor (12) is installed on the heat pipe precooling section (41).

8. The packaged air conditioning unit of claim 1, wherein: The shell of the U-shaped heat pipe (4) is an aluminum-magnesium pipe structure.

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