Integral environmental control all-in-one machine with fresh air cold and heat exchange function

Abstract

The invention relates to an integrated environmental control all-in-one machine with a fresh air cold and heat exchange function in the technical field of air conditioner total heat exchange. The integrated environmental control all-in-one machine comprises a total heat exchanger and a preprocessor. The preprocessor comprises a pre-dehumidification box body and a heat exchanger, the pre-dehumidification box body is communicated with a fresh air inlet of the total heat exchanger, and the heat exchanger is arranged in the pre-dehumidification box body and is in heat exchange connection with a pipeline which is output from an air conditioner compressor to a radiator; the pre-dehumidification box body is composed of box walls which selectively permeate water molecules. The preprocessor is additionally arranged to dehumidify air just entering an inlet of a fresh air system, heat is extracted from a cooling liquid conveying pipeline compressed by an air conditioner compression pump to heat fresh air entering a pre-dehumidification box body, a large temperature difference is generated inside and outside the pre-dehumidification box body, and the permeation efficiency of water molecules is improved; therefore, the fresh air system can obtain fresh air with the humidity lower than the environment humidity value, and extra energy does not need to be consumed.

Description

Technical Field

[0001] This invention relates to the field of air conditioning total heat exchange technology, specifically to an integrated environmental control unit with fresh air cooling and heat exchange function. Background Technology

[0002] Air conditioning is widely used as the main device for controlling indoor temperature and humidity. However, since air conditioning requires the room to be closed to function, and the indoor humidity and carbon dioxide levels increase due to human respiration, the difference in the feeling of stuffiness or damp cold can occur.

[0003] To overcome the effects of enclosed indoor spaces, air conditioning technology has been upgraded to include a fresh air function. This function continuously increases the intake of fresh air to replace indoor air, maintaining the indoor carbon dioxide concentration within a suitable range. However, the outdoor air introduced by the fresh air function can affect indoor temperature control, and excessive humidity can cause indoor dampness and increase energy consumption. Therefore, fresh air functions are typically equipped with a total heat exchanger. By exchanging temperature and humidity between the output indoor air and the input outdoor air within the heat exchange core, the temperature and humidity difference between the incoming fresh air and the indoor environment is reduced, thus reducing energy consumption and the burden of temperature and humidity control.

[0004] Nevertheless, in southern cities along the coast or in the mountains, during the annual humid season, the ambient humidity can far exceed the humidity exchange capacity of the total heat exchange core. Therefore, it is crucial to ensure the dehumidification effect of fresh air input and reduce energy consumption under extremely humid conditions such as the humid season. Summary of the Invention

[0005] The purpose of this invention is to solve the problem of significantly reduced dehumidification effect of total heat exchangers under extremely humid environments such as the humid spring season.

[0006] To achieve the above objectives, the present invention provides the following technical solution: An integrated environmental control unit with fresh air cooling and heat exchange function includes a total heat exchanger and a pre-processor; The pre-processor includes a pre-dehumidification chamber and a heat exchanger. The pre-dehumidification chamber is connected to the fresh air inlet of the total heat exchanger. The heat exchanger is installed inside the pre-dehumidification chamber and is connected to the pipe from the air conditioning compressor to the radiator for heat exchange. The pre-dehumidification chamber is constructed with walls that selectively allow water molecules to permeate.

[0007] Preferably, the preprocessor further includes a booster pump, a pressure control valve, and a preprocessor controller electrically connected to both. The booster pump is located at the air inlet of the pre-dehumidification chamber, the pressure control valve is located at the air outlet of the pre-dehumidification chamber, and the preprocessor controller commands the booster pump and the pressure control valve to operate at different speeds to regulate the gas pressure inside the pre-dehumidification chamber.

[0008] Preferably, the box wall is a plate composed of a polymer film and a mesh support plate, used to support high-pressure gas storage and water molecules permeation.

[0009] Preferably, it also includes a control terminal and a humidity sensor group electrically connected thereto, the humidity sensor group including an indoor sensor and an outdoor sensor for monitoring indoor humidity and outdoor humidity respectively.

[0010] Preferably, the control terminal is electrically connected to the pre-treatment controller, and adjusts the air pressure inside the pre-dehumidification box by monitoring the indoor and outdoor humidity difference to control the fresh air pre-dehumidification efficiency.

[0011] Preferably, the control terminal is also electrically connected to the fresh air output fan of the total heat exchanger to coordinate the control of the output gas volume of the pressure control valve to be the same as the output gas volume of the fresh air output fan.

[0012] Preferably, the heat exchanger includes a heating plate and a heat conduction component. The heating plate is located inside the pre-dehumidification chamber. One end of the heat conduction component is heat-exchange connected to the heating plate, and the other end passes through the pre-dehumidification chamber and is heat-exchange connected to the pipe from the air conditioning compressor to the radiator.

[0013] Preferably, the heat conduction component includes a telescopic heat conductor and an electric screw. The electric screw is built into the telescopic heat conductor and is electrically connected to the control terminal. The control terminal controls the telescopic heat conductor to contact or disconnect the heat exchange connection point between the heat exchange conductor and the pipe from the air conditioner compressor to the radiator based on the difference between indoor and outdoor humidity.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention dehumidifies the air entering the fresh air system by adding a pre-processor. Heat is extracted from the coolant delivery pipe after compression by the air conditioning compressor to heat the incoming fresh air, creating a significant temperature difference between the inside and outside of the pre-dehumidification chamber. This temperature difference increases the permeability of water molecules within the chamber, resulting in fresh air with humidity levels lower than the ambient humidity, without consuming additional energy. Furthermore, by maintaining this pressure difference through pressurization and pressure control, a greater air compression rate per unit volume increases the water molecule concentration for dehumidification. Valve control of the output flow rate matches the fresh air system's flow requirements, reducing pressure and diluting the water molecule concentration, thus ensuring that the humidity of the incoming fresh air is significantly lower than the ambient humidity. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of an integrated environmental control unit with fresh air cooling and heating exchange function; Figure 2 This is a schematic diagram of the preprocessor structure.

[0017] The components include: 1. Total heat exchanger; 2. Pre-processor; 3. Compressor; 4. Radiator. 21 Pre-dehumidification chamber; 22 Heat exchanger; 23 Booster pump; 24 Pressure control valve; 221 Heating plate; 222 Telescopic heat conductor; 223 Electric screw. Detailed Implementation

[0018] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0019] Please refer to Figure 1-2 This embodiment provides an integrated environmental control unit with fresh air heat exchange function, including an indoor air conditioning unit, an outdoor unit, a total heat exchanger 1 installed in the indoor unit, and a pre-processor 2. The total heat exchanger 1 is installed in the fresh air system of the indoor air conditioning unit, and the pre-processor 2 is installed in the outdoor air conditioning unit and connected to the total heat exchanger 1 of the fresh air system through a duct, serving as a pre-treatment stage for the fresh air input to the total heat exchanger 1. It is also closer to the compressor 3 and radiator 4 in the outdoor air conditioning unit, facilitating the installation of heat transfer components to absorb heat.

[0020] The pre-processor 2 has the following structure: a pre-dehumidification chamber 21 is formed by a permeable membrane with selective water molecule permeation function attached to a perforated mesh box. A heat exchanger 22 is installed inside the pre-dehumidification chamber 21. The heat conduction part of the heat exchanger 22 passes through a pipe connecting the pre-dehumidification chamber 21 to the outside. This pipe is the connecting pipe between the air conditioning compressor 3 and the radiator 4. Since the working principle of an air conditioner involves a series of thermal cycles, such as the compressor 3 compressing the refrigerant into a high-temperature liquid state and then delivering it to the radiator 4 for heat dissipation, the pre-processor 2 absorbs unwanted heat to heat the air inside the pre-dehumidification chamber 21. After the air is heated, the water molecules move faster and their potential energy increases, causing the water molecules inside the pre-dehumidification chamber 21 to diffuse outward through the permeable membrane. The heated air, having lost some water molecules, enters the fresh air system and is then cooled and delivered into the room through the refrigeration pipes.

[0021] By absorbing unwanted heat energy to heat the incoming fresh air, a temperature difference is created between the inside and outside of the pre-dehumidification chamber 21, guiding water molecules to diffuse outward and reducing the humidity of the air entering the fresh air system. This reduces the humidity of the air entering the fresh air system under extremely humid conditions such as during the humid spring season, lowers the dehumidification pressure of the subsequent total heat exchanger 1, and ultimately reduces the humidity of the fresh air entering the room.

[0022] It is worth mentioning that, since the potential energy imparted to water molecules by temperature difference is limited, the dehumidification effect can only be auxiliary. To further increase the potential energy of water molecules within the pre-dehumidification chamber 21, in one embodiment, a booster pump 23 is installed at the air inlet of the pre-dehumidification chamber 21, and a pressure control valve 24 is installed at the air outlet connecting the pre-dehumidification chamber 21 to the pipeline. By creating a difference between the inlet and outlet air volumes, the air within the pre-dehumidification chamber 21 is compressed and pressurized to a certain extent, further increasing the concentration and potential energy of water molecules within the pre-dehumidification chamber 21, causing a large amount of water molecules to permeate outwards. After reducing the water molecule density within the pre-dehumidification chamber 21, the pressure control valve 24 maintains the flow rate control range required by the fresh air system, ensuring that the gas pressure and volume leaving the pre-dehumidification chamber 21 return to normal values. The water molecule density per unit volume is further reduced, providing the fresh air system with a humidity level far lower than that of the outdoor humid environment.

[0023] The permeable membrane is a polymer film. A mesh support plate and the polymer film are stacked together to form the wall panels, which are then assembled into a mesh box structure. Alternatively, the mesh box can be used directly as a supporting framework to attach the polymer film. Any box structure capable of allowing water molecules to pass through can be implemented.

[0024] To monitor indoor and outdoor humidity in real time, this integrated environmental control unit is also equipped with indoor and outdoor sensors, both used to monitor humidity data in the actual scene. The data is collected and processed through the control terminal to obtain the control threshold for the indoor and outdoor humidity difference and the humidity of the fresh air intake. When it is necessary to further improve the pre-dehumidification efficiency, the booster pump 23 and the pressure control valve 24 are activated to pressurize the pre-dehumidification chamber 21, thereby improving the water molecule dehumidification efficiency.

[0025] To prevent damage to the heat exchange core within the heat exchanger 1 due to high pressure differential, it is necessary to control the pressure in the intake channel of the heat exchanger 1 to balance the pressure difference on both sides. Therefore, the control terminal is electrically connected to the fresh air output fan of the heat exchanger 1, and coordinates the control valve 24 and the fresh air output fan to output the same flow rate, or adjusts the matching pressure according to the pressure value of the exhaust channel of the heat exchanger 1.

[0026] The heat exchanger 22 located in the pre-dehumidification chamber 21 is used to heat the air in the pre-dehumidification chamber 21 after absorbing heat. Therefore, a heating plate 221 with a larger contact surface with the air is adopted. In addition, the heat transfer component connects the heating plate 221 to the output pipe of the compressor 3 for heat exchange to absorb heat.

[0027] It is worth mentioning that since humid environments such as the "return to spring" are occasional occurrences, the preprocessor 2 can be left off unless absolutely necessary to avoid high heat from the incoming fresh air affecting indoor temperature and increasing air conditioning energy consumption. Therefore, the heat conduction component is improved to a telescopic structure with a telescopic heat conductor 222 and an internal electric screw 223. The servo motor of the electric screw 223 is electrically connected to the control terminal. The servo motor controls the electric telescopic rod to drive the telescopic heat conductor to extend or shorten, so that the end of the telescopic heat conductor that contacts the pipe for heat conduction or contracts to block heat conduction.

[0028] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. An integrated environmental control unit with fresh air cooling and heating exchange function, characterized in that: Includes a total heat exchanger and a preprocessor; The pre-processor includes a pre-dehumidification chamber and a heat exchanger. The pre-dehumidification chamber is connected to the fresh air inlet of the total heat exchanger. The heat exchanger is installed inside the pre-dehumidification chamber and is connected to the pipe from the air conditioning compressor to the radiator for heat exchange. The pre-dehumidification chamber is constructed with walls that selectively allow water molecules to permeate.

2. The integrated environmental control unit with fresh air cooling and heating exchange function according to claim 1, characterized in that: The preprocessor also includes a booster pump, a pressure control valve, and a preprocessor controller electrically connected to both. The booster pump is located at the air inlet of the pre-dehumidification chamber, and the pressure control valve is located at the air outlet of the pre-dehumidification chamber. The preprocessor controller commands the booster pump and the pressure control valve to operate at different speeds to regulate the gas pressure inside the pre-dehumidification chamber.

3. The integrated environmental control unit with fresh air cooling and heating exchange function according to claim 2, characterized in that: The box wall is a plate composed of a polymer film and a mesh support plate, used to support high-pressure gas storage and water molecules permeation.

4. The integrated environmental control unit with fresh air cooling and heating exchange function according to claim 3, characterized in that: It also includes a control terminal and a humidity sensor group electrically connected thereto, the humidity sensor group including an indoor sensor and an outdoor sensor for monitoring indoor humidity and outdoor humidity respectively.

5. The integrated environmental control unit with fresh air cooling and heating exchange function according to claim 4, characterized in that: The control terminal is electrically connected to the pre-treatment controller and adjusts the air pressure inside the pre-dehumidification box by monitoring the indoor and outdoor humidity difference to control the fresh air pre-dehumidification efficiency.

6. The integrated environmental control unit with fresh air cooling and heating exchange function according to claim 4, characterized in that: The control terminal is also electrically connected to the fresh air output fan of the total heat exchanger to coordinate the control of the output gas volume of the pressure control valve to be the same as the output gas volume of the fresh air output fan.

7. The integrated environmental control unit with fresh air cooling and heating exchange function according to claim 4, characterized in that: The heat exchanger includes a heating plate and a heat conduction component. The heating plate is located inside the pre-dehumidification chamber. One end of the heat conduction component is connected to the heating plate for heat exchange, and the other end passes through the pre-dehumidification chamber and is connected to the pipe from the air conditioning compressor to the radiator for heat exchange.

8. The integrated environmental control unit with fresh air cooling and heating exchange function according to claim 7, characterized in that: The heat conduction component includes a telescopic heat conductor and an electric screw. The electric screw is built into the telescopic heat conductor and is electrically connected to the control terminal. The control terminal controls the telescopic heat conductor to contact or disconnect the heat exchange connection point between the heat conductor and the pipe from the air conditioner compressor to the radiator based on the difference between indoor and outdoor humidity.

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