Air treatment method

Abstract

The invention relates to the technical field of dehumidification, in particular to an air treatment method which comprises the steps that air humidity requirements and air temperature requirements required by different environments are obtained, and the first limit dehumidification capacity and the second limit dehumidification capacity of a cooling medium are determined according to the temperature of the cooling medium; when the air humidity requirement of one environment is located in the dehumidification interval of the first limit dehumidification capacity, if the temperature of the treated air after dehumidification is smaller than the air temperature requirement of the corresponding environment, the first dehumidification module is driven to conduct dehumidification and reheat treatment on the treated air; when the air humidity requirement of the environment is located in the dehumidification interval with the second limit dehumidification capacity, the second dehumidification module is driven to conduct dehumidification treatment on the treated air; and when the air humidity requirement is located in the dehumidification interval between the first limit dehumidification capacity and the second limit dehumidification capacity, the third dehumidification module or the fourth dehumidification module is driven to cool the treated air.

Description

Technical Field

[0001] The present invention relates to the technical field of dehumidification, and particularly to an air treatment method. Background Art

[0002] With the development of industry and the improvement of living standards, air dehumidification technology is widely used in many fields. In commercial buildings and office environments, dehumidification needs to balance human comfort and energy consumption; in the food processing and pharmaceutical industries, a low-humidity environment is the core guarantee for product quality; while in high-end industrial fields such as semiconductor manufacturing and chip production, the requirements for air humidity control are even more stringent. At the same time, the progress of technologies such as evaporative cooling and adsorption dehumidification has promoted the energy-saving development of air-conditioning systems. However, the requirements for dehumidification capacity, temperature and humidity coupling control, and operating costs vary significantly in different application scenarios, posing higher requirements for the adaptability of system design. Summary of the Invention

[0003] The main object of the present invention is to provide an air treatment method based on multiple humidity requirements, aiming to adapt to different scenario requirements through different dehumidification system designs.

[0004] To achieve the above object, the air treatment method includes: Obtain the air humidity requirement and air temperature requirement of different environments, and determine the first limit dehumidification capacity and the second limit dehumidification capacity of the cooling medium according to the temperature of the cooling medium, wherein the second limit dehumidification capacity is greater than the first limit dehumidification capacity; When the air humidity requirement of an environment is within the dehumidification range of the first limit dehumidification capacity, if the temperature of the processed air after dehumidification is less than the air temperature requirement of the corresponding environment, drive the first dehumidification module to dehumidify and reheat the processed air; When the air humidity requirement of an environment is within the dehumidification range of the second limit dehumidification capacity, drive the second dehumidification module to dehumidify the processed air; When the air humidity requirement is within the dehumidification range between the first limit dehumidification capacity and the first limit dehumidification capacity, drive the third dehumidification module or the fourth dehumidification module to cool the processed air.

[0005] In an embodiment of the present invention, when the air humidity requirement is within the dehumidification range between the first limit dehumidification capacity and the first limit dehumidification capacity, driving the third dehumidification module or the fourth dehumidification module to cool the processed air includes: If the temperature of the processed air after dehumidification is not less than the air temperature requirement of the corresponding environment, drive the third dehumidification module to dehumidify the processed air; When the temperature of the processed air after dehumidification is lower than the air temperature requirement of the corresponding environment, the fourth dehumidification module is driven to perform dehumidification and reheating treatment on the processed air.

[0006] In an embodiment of the present invention, the first dehumidification module includes at least one heat pipe dehumidifier, and the heat pipe dehumidifier includes a housing, a dehumidifying heat pipe, and a single cold water coil. The dehumidifying heat pipe and the single cold water coil are both arranged in the housing, and the dehumidifying heat pipe includes an evaporation part and a condensation part; wherein, the housing is provided with a processing channel having an input end and an air outlet, and the single cold water coil is located between the evaporation part and the condensation part along the air flow path of the processing channel.

[0007] In an embodiment of the present invention, the housing includes a first circulation layer and a second circulation layer which are communicatively arranged, the first circulation layer and the second circulation layer are arranged up and down, the evaporation part is arranged opposite to the condensation part, the evaporation part is located in the first circulation layer, and the condensation part is located in the second circulation layer; wherein, the first circulation layer has the input end, and the second circulation layer has the output end.

[0008] In an embodiment of the present invention, the heat pipe dehumidifier further includes a bypass valve, and the bypass valve is arranged at the overlapping part between the first circulation layer and the second circulation layer and is located on the side of the evaporation part facing the input end.

[0009] In an embodiment of the present invention, the second dehumidification module includes a pre-treatment dehumidifier and a rotary dehumidifier. The input end of the rotary dehumidifier is connected to the output end of the pre-treatment dehumidifier. The pre-treatment dehumidifier has a first cold water coil and a second cold water coil, and the first cold water coil and the second cold water coil are connected in series through a pipeline; the first cold water coil is arranged near the input end of the pre-treatment dehumidifier, and the second cold water coil is arranged near the output end of the pre-treatment dehumidifier; The input end of the rotary dehumidifier is connected to the output end of the second cold water coil; wherein, the temperature of the cooling medium of the second cold water coil is lower than that of the first cold water coil.

[0010] In an embodiment of the present invention, the third dehumidification module has the preheating pipe dehumidifier, combined with the cold source supply module, and the medium of the heat pipe dehumidifier is 0°C cold water.

[0011] In an embodiment of the present invention, the fourth dehumidification module is provided with the pre-treatment dehumidifier and the heat pipe dehumidifier, and the input end of the heat pipe dehumidifier is connected to the output end of the pre-treatment dehumidifier.

[0012] In one embodiment of the present invention, the providing of the first dehumidification module, the second dehumidification module, the third dehumidification module and the fourth dehumidification module further includes: A cold source supply module is provided, which includes an ice slurry machine and a cold source supply tank. The input end of the cold source supply tank is connected to the ice slurry machine, and the single cold water coil or the second cold water coil is connected to the output end of the cold source supply tank.

[0013] In one embodiment of the present invention, the cold source supply module further includes a cold source buffer box, and the cold source buffer box is connected to the ice slurry machine and the cold source supply tank.

[0014] The present invention proposes a modular hierarchical dehumidification method to address the pain points of traditional air treatment systems, such as the difficulty of adapting to the humidity control requirements of multiple scenarios, strong coupling of temperature and humidity, and high energy consumption. By constructing four types of dehumidification modules (the first to fourth modules) with complementary functions and establishing a dual-threshold dynamic decision-making mechanism, precise humidity control and energy efficiency optimization across industries can be achieved. Specifically, based on environmental monitoring data, the system first calculates the first limit dehumidification capacity (normal operating condition threshold) and the second limit dehumidification capacity (high-intensity dehumidification threshold) of the cooling medium, and divides the humidity demand into three control intervals: when the target humidity is in the first limit interval, the first module is preferentially enabled for adsorption dehumidification and heat recovery heating, and temperature loss is compensated while dehumidifying, solving the problem of overcooling caused by traditional dehumidification in commercial buildings; when the target humidity exceeds the second limit value, the deep condensation dehumidification of the second module is started to meet the ultra-low humidity requirements of scenarios such as semiconductor manufacturing; for the intermediate humidity interval, the evaporative cooling technology of the third and fourth modules is called to implement temperature regulation, breaking the dilemma of "humidity regulation must be accompanied by temperature fluctuations" in the traditional system. By integrating multiple physical dehumidification technologies to form a collaborative working mechanism, the humidity control range is significantly expanded through the layered application of technical characteristics, which can meet the full spectrum of needs from conventional environments to ultra-low humidity scenarios; secondly, develop an intelligent environmental coupling control mechanism to break through the technical bottleneck of traditional temperature and humidity interference, and achieve refined independent control of humidity parameters, especially in environmentally sensitive industries. Demonstrating excellent stability; finally, build a dynamic energy consumption optimization system, intelligently allocate system resources based on scene characteristics, and significantly reduce energy waste while ensuring processing efficiency. The modular architecture design significantly reduces the complexity of operation and maintenance throughout the life cycle. This technical system effectively solves the contradiction of air treatment in modern industrial multi-scenario applications, and provides innovative solutions for different fields that can adapt to harsh environmental requirements and have intelligent adjustment capabilities and sustainable operation advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0016] Figure 1 Schematic structural diagram of an embodiment of the first dehumidification module provided by the present invention; Figure 2 Schematic structural diagram of the cold source supply module provided by the present invention; Figure 3 Schematic structural diagram of the pretreatment dehumidifier provided by the present invention; Figure 4 Schematic structural diagram of the second dehumidification module provided by the present invention; Figure 5 Schematic logical judgment diagram of the air treatment method provided by the present invention; Figure 6 Schematic flow diagram of the first embodiment of the air treatment method provided by the present invention; Figure 7 Schematic flow diagram of the second embodiment of the overexposure adjustment method provided by the present invention.

[0017] Explanation of the reference numerals in the drawings: 10. First dehumidification module; 101. Housing; 1011. First flow layer; 1012. Second flow layer; 10a. Inlet end; 10b. Outlet end; 102. Evaporation part; 103. Condensation part; 104. Single cold water coil; 105. Bypass valve; 20. Second dehumidification module; 21. Pretreatment dehumidifier; 211. First cold water coil; 212. Second cold water coil; 22. Rotary dehumidifier; 30. Cold source supply module; 301. Ice slurry machine; 302. Cold source supply tank; 303. Cold source buffer tank.

[0018] The realization of the objectives, functional features, and advantages of the present invention will be further described in conjunction with the embodiments and with reference to the drawings. Detailed implementation manners

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0020] It should be noted that all the directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a certain specific posture (as shown in the attached drawings). If this specific posture changes, the directional indication will also change accordingly.

[0021] In addition, the descriptions involving "first", "second", etc. in the present invention are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel scenarios. Taking "A and / or B" as an example, it includes scenario A, or scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0022] The main object of the present invention is to provide an air treatment method, aiming to adapt to different scenario requirements through different dehumidification system designs.

[0023] To achieve the above object, the air treatment method includes: Step S10: Obtain the air humidity requirement and air temperature requirement needed in different environments, and determine the first limit dehumidification capacity and the second limit dehumidification capacity of the cooling medium according to the temperature of the cooling medium, wherein the second limit dehumidification capacity is greater than the first limit dehumidification capacity; Step S20: When the air humidity requirement of an environment is within the dehumidification interval of the first limit dehumidification capacity, if the temperature of the processed air after dehumidification is lower than the air temperature requirement of the corresponding environment, drive the first dehumidification module to dehumidify and reheat the processed air; Step S30: When the air humidity requirement of an environment is within the dehumidification interval of the second limit dehumidification capacity, drive the second dehumidification module to dehumidify the processed air; Step S40: When the air humidity requirement is within the dehumidification interval between the first limit dehumidification capacity and the second limit dehumidification capacity, drive the third dehumidification module or the fourth dehumidification module to cool the processed air.

[0024] Further, step S40 includes: Step S410: When the air humidity requirement is within the dehumidification interval between the first limit dehumidification capacity and the second limit dehumidification capacity, judge the temperature of the processed air after dehumidification and the air temperature requirement; Step S420: If the temperature of the processed air after dehumidification is not less than the air temperature requirement of the corresponding environment, drive the third dehumidification module to dehumidify the processed air; Step S430: If the temperature of the processed air after dehumidification is less than the air temperature requirement of the corresponding environment, drive the fourth dehumidification module to perform dehumidification and reheat treatment on the processed air.

[0025] Please refer to Figures 5 to 7 , taking chilled water at 7 degrees Celsius and ice water mixture at 0 degrees Celsius as examples, the dehumidification limit of 7-degree chilled water is 7.24 g / kg (the air dehumidification value corresponding to the first limit dehumidification capacity), and the dehumidification limit of 0-degree ice water mixture is 4.45 g / kg (the air dehumidification value corresponding to the second limit dehumidification capacity). In the figure, D1 represents the required moisture content, t1 represents the required temperature, and t2 represents the actual temperature after dehumidification.

[0026] In the technical solution of the present invention, by constructing four types of dehumidification modules with complementary functions (the first to the fourth modules) and establishing a dual-threshold dynamic decision-making mechanism, precise cross-industry humidity regulation and energy efficiency optimization are achieved. Specifically, based on environmental monitoring data, the system first calculates the first limit dehumidification capacity (conventional working condition threshold) and the second limit dehumidification capacity (high-intensity dehumidification threshold) of the cooling medium, and divides the humidity requirement into three control intervals: when the target humidity is in the first limit interval, the first module is preferentially enabled for adsorption dehumidification and heat recovery heating to compensate for temperature loss while dehumidifying, solving the problem of overcooling caused by traditional dehumidification in commercial buildings; when the target humidity exceeds the second limit value, the deep condensation dehumidification of the second module is started to meet the ultra-low humidity requirements in scenarios such as semiconductor manufacturing; for the intermediate humidity interval, the evaporation cooling technology of the third and fourth modules is called to implement temperature regulation, breaking the dilemma of the traditional system that "humidity regulation must be accompanied by temperature fluctuations". By integrating multiple physical dehumidification technologies to form a collaborative working mechanism, the humidity regulation range is significantly expanded through hierarchical application of technical characteristics, and the full-spectrum requirements from conventional environments to ultra-low humidity scenarios can be met; secondly, an intelligent environment coupling regulation mechanism is developed to break through the technical bottleneck of traditional temperature and humidity interaction interference, realizing refined independent control of humidity parameters, and showing excellent stability especially in environment-sensitive industries; finally, a dynamic energy consumption optimization system is constructed to intelligently allocate system resources based on scenario characteristics, significantly reducing energy waste while ensuring processing efficiency, and significantly reducing the full-life cycle operation and maintenance complexity in cooperation with the modular architecture design. This technical system effectively solves the air treatment contradictions in modern industrial multi-scenario applications, and provides innovative solutions for different fields that can not only adapt to harsh environmental requirements, but also have intelligent adjustment capabilities and sustainable operation advantages.

[0027] First of all, it needs to be explained that "when the air humidity requirement of an environment is within the dehumidification range of the first limit dehumidification capacity" means that the environment has a low humidity requirement (defined as the first scenario requirement for clarity), such as the office area or shopping mall in a commercial building. These places have relatively moderate humidity requirements. At the same time, the temperature of the processed air after the first dehumidification is less than the temperature value required by the environment. Then, the first dehumidification module 10 is driven to perform air treatment on the incoming air. After the processed air undergoes changes of first dehumidifying and then heating in the first dehumidification module, it can meet the occasions with low humidity requirements, not high environmental temperature requirements, or the need for reheating after dehumidification.

[0028] "When the air humidity requirement of an environment is within the dehumidification range of the first limit dehumidification capacity" means that the environment has a high-precision low humidity requirement (defined as the second scenario requirement for clarity), such as a semiconductor manufacturing workshop, an electronic chip manufacturing workshop, etc. These places have very strict humidity requirements and usually need to control the humidity at an extremely low level, such as the dew point temperature ≤ -40°C. The second dehumidification module 20 (the pretreatment dehumidifier 21 and the rotary dehumidifier 22) is driven to process the processed air so that the processed air can meet the high-precision low humidity requirement.

[0029] "When the air humidity requirement of an environment is within the dehumidification range of the second limit dehumidification capacity, and the temperature of the processed air after dehumidification is not less than the air temperature requirement of the corresponding environment" means that there is no need to reheat the air after dehumidification (defined as the third scenario requirement for clarity), such as certain industrial workshops, underground parking lots, etc. These places not only need to reduce the air humidity but also need to increase the air temperature after dehumidification to meet specific process or environmental requirements. By driving the third dehumidification module to perform dehumidification treatment on the processed air, when the air humidity requirement can be between the first limit dehumidification value and the second limit dehumidification value of the cooling medium, and at the same time, the incoming air temperature for dehumidification will not be less than the corresponding temperature value in this environment, the scenario requirement can be met without reheating.

[0030] "When the air humidity requirement of an environment is within the dehumidification range of the second limit dehumidification capacity, and the temperature of the processed air after dehumidification is less than the air temperature requirement of the corresponding environment" means that the air humidity after air treatment is between low humidity and high-precision low humidity and has a requirement for reheating (defined as the fourth scenario requirement for clarity), such as museums, archives, etc. These places not only need to reduce the air humidity but also need to increase the air temperature after dehumidification to meet specific environmental requirements. By driving the fourth dehumidification module to perform dehumidification and reheating treatment on the processed air, when the air humidity requirement can be between the first limit dehumidification value and the second limit dehumidification value of the cooling medium, and at the same time, the incoming air temperature after dehumidification and reheating will not be less than the corresponding temperature value in this environment, thus meeting the scenario requirement.

[0031] Further explanation is needed. In the first to fourth dehumidification modules, during the dehumidification stage, the outside air will exchange heat with the cooling medium. The temperature t2 of the air whose temperature has changed is detected and obtained and compared with the required temperature t1, so as to select the corresponding dehumidification module for dehumidification according to the required dehumidification demand. Taking the final selection of the first dehumidification module as an example, first, clarify the humidity demand corresponding to a demand scenario, and determine whether the required humidity can be obtained by using the cooling water medium at 7 degrees Celsius. If so, clarify the temperature demand in the first demand scenario. For example, if the first demand scenario has low requirements for temperature (that is, heating treatment is required after dehumidification), that is, after the outside air is dehumidified by the cooling water medium at 7 degrees Celsius, the processed air cools down. Through the temperature sensor, it can be obtained that its temperature (t2) will be lower than the required temperature (t1) in the first demand scenario. This means that heating treatment is required. Thus, on the premise of knowing the scenario demand, it is possible to dehumidify first and then cool down. The dehumidification module that can meet certain requirements for environmental humidity and has low requirements for environmental temperature is the first dehumidification module.

[0032] In an embodiment of the present invention, the first dehumidification module includes at least one heat pipe dehumidifier. The heat pipe dehumidifier includes a housing, a dehumidification heat pipe, and a single cold water coil. The dehumidification heat pipe and the single cold water coil are both arranged in the housing. The dehumidification heat pipe includes an evaporation part and a condensation part. Among them, the housing is provided with a processing channel having an input end and an air outlet, and the single cold water coil is located between the evaporation part and the condensation part along the air flow path of the processing channel.

[0033] Specifically, for the first dehumidification module 10, the cold source medium can flow to the single cold water coil 104 under the combined action of structures such as a pressure pump and a control valve, so that the outside air, i.e., the pre-treated air, is cooled and dehumidified at the cooling coil. The outside air enters from the inlet end 10a of the heat pipe dehumidifier, and then is first cooled at the evaporation part 102. Among them, the refrigerant in the evaporation part 102 absorbs heat due to evaporation, so as to achieve the effect of reducing the air temperature. Subsequently, the gas is cooled and dehumidified by absorbing heat from the cold source medium at the single cold water coil 104, so as to ensure that the air flowing out of the heat pipe dehumidifier is in a low humidity state. The air that has been cooled and dehumidified is heated at the condensation part 103 of the heat pipe dehumidifier. The refrigerant in the condensation part 103 changes from a gaseous state to a liquid state in the condensation part 103, releasing a large amount of heat. These heats can be used to heat the air that has been cooled and dehumidified. In this way, the temperature of the processed air is increased and the humidity is reduced in the first dehumidification module, so as to meet some occasions with certain requirements for environmental humidity, low requirements for environmental temperature, and the need for reheating after dehumidification, such as office, commercial, food processing and other fields. It can be understood that the first dehumidification module 10 can be composed of at least one heat pipe dehumidifier. For example, in one embodiment, the first dehumidification module 10 includes one heat pipe dehumidifier; in another embodiment, when facing a large area with certain requirements for environmental humidity, low requirements for environmental temperature, and the need for reheating after dehumidification, the first dehumidification module 10 includes multiple heat pipe dehumidifiers to meet the air demand. Therefore, the number of heat pipe dehumidifiers included in the first dehumidification module 10 is not limited herein.

[0034] In an embodiment of the present invention, the housing includes a first flow layer and a second flow layer which are communicatively arranged. The first flow layer and the second flow layer are arranged one above the other. The evaporation part is arranged opposite to the condensation part. The evaporation part is located in the first flow layer, and the condensation part is located in the second flow layer. Among them, the first flow layer has an input end, and the second flow layer has an output end. Specifically, outside air flows in from the input end and first passes through the evaporation part 102. In the evaporation part 102, the refrigerant absorbs heat due to evaporation, causing the air temperature to drop, and the water vapor therein condenses into water droplets, achieving primary cooling and dehumidification. Subsequently, the preliminarily treated air flows into the second flow layer 1012, where at the condensation part 103, the refrigerant condenses and releases heat, and this heat is used to heat the air that has been cooled and dehumidified. Finally, the treated air leaves the heat pipe dehumidifier from the output end of the second flow layer 1012. The whole process not only effectively reduces the air humidity, but also improves the air temperature through the heat recovery and utilization of the condensation part 103, meeting the requirement of the specific place for heating the dehumidified air. Through the structural design, the air flow path and heat exchange process inside the heat pipe dehumidifier are optimized, improving the operation efficiency and adaptability of the equipment; at the same time, because the first flow layer 1011 is below the second flow layer 1012, since the evaporation part 102 is below and the condensation part 103 is above, the hot and cold areas are naturally separated, reducing the energy loss during the hot and cold exchange. At the same time, when flowing through the single cold water coil 104, the moisture in the air will condense due to cooling. Since it is located below, the condensed water can naturally drip and drain, facilitating humidity control.

[0035] In an embodiment of the present invention, the heat pipe dehumidifier further includes a bypass valve 105. The bypass valve 105 is arranged at the overlapping part between the first flow layer 1011 and the second flow layer 1012 and is located on the side of the evaporation part 102 facing the input end. According to the air parameter feedback provided by the temperature and humidity sensor of the bypass valve 105, it is judged whether the air needs to be dehumidified. Specifically, by comparing the outdoor air state point and the indoor air state point, when the outdoor air parameter is in the cooling and dehumidification area indicating that the gas is high temperature and high humidity, that is, the outside air needs to be cooled and dehumidified, at this time, the bypass air valve is closed so that the outside air sequentially passes through the evaporation part 102, the single cold water coil 104 and the condensation part 103; if the outdoor air parameter is in the heating and humidification area indicating that the gas is low temperature and low humidity, that is, the outside air does not need to be cooled and dehumidified, the bypass air valve is opened.

[0036] In an embodiment of the present invention, the second dehumidification module 20 includes a pre-treatment dehumidifier 21 and a rotary dehumidifier 22. The input end of the rotary dehumidifier 22 is connected to the output end of the pre-treatment dehumidifier 21. The pre-treatment dehumidifier 21 has a first cold water coil 211 and a second cold water coil 212. The first cold water coil 211 and the second cold water coil 212 are arranged in series through a pipeline; the first cold water coil 211 is arranged near the input end of the pre-treatment dehumidifier 21, and the second cold water coil 212 is arranged near the output end of the pre-treatment dehumidifier 21; the input end of the rotary dehumidifier 22 is connected to the output end of the second cold water coil 212. Specifically, for the second dehumidification module 20, the cold source medium flows through the coils of the pre-treatment unit driven by a pressure pump, a control valve, etc. After the outside air contacts the low-temperature coil, the temperature drops below the dew point, and part of the moisture condenses and precipitates, realizing the preliminary reduction of humidity. In this stage, high-humidity air can be efficiently processed, significantly reducing the load of the subsequent rotary dehumidifier 22. Subsequently, the pre-treated air enters the rotary dehumidifier 22. The rotary adsorption area is filled with high-performance adsorption materials (such as silica gel, molecular sieve). When the air flows through the rotary wheel, the adsorption material captures the remaining moisture through physical / chemical actions, and outputs ultra-low humidity air (such as the dew point temperature ≤ -40 °C). In the whole process, the humidity and temperature of the air have been reduced in the pre-treatment stage, reducing the moisture load and regeneration energy consumption during the rotary adsorption, and the required regeneration temperature is also reduced accordingly, facilitating the use of industrial waste heat and solar energy for regeneration and desorption, further reducing the reheat energy consumption. Among them, the cooling medium temperature of the second cold water coil is lower than that of the first cold water coil. For example, when the medium temperature input into the second cold water coil 212 is 0 °C, and the medium temperature flowing into the first cold water coil 211 through the pipeline is 5 °C. With the relatively high cooling medium temperature in the first cold water coil 211, the initial condensation and dehumidification of the air are triggered first, effectively removing a large amount of moisture, preliminarily reducing the air humidity, and reducing the pressure on the subsequent dehumidification components. Subsequently, the preliminarily treated air enters the second cold water coil 212, where the cooling medium temperature is lower. With the help of a greater temperature difference effect, the residual moisture is deeply condensed and precipitated, further reducing the air humidity to a lower level, thus creating favorable conditions for the rotary dehumidifier 22 to receive the treated air and achieve the ultra-low humidity target, significantly reducing the moisture load adsorbed by the rotary wheel, reducing its regeneration energy consumption, improving the overall dehumidification efficiency and energy-saving effect, and ensuring that the system can stably output low-humidity air that meets the requirements in the face of high-precision low-humidity demand scenarios; at the same time, setting the two cold water coils in series can prevent the wall thickness of each cold water coil from being too large and reducing the heat exchange efficiency.

[0037] In an embodiment of the present invention, the third dehumidification module has a pre-treatment dehumidifier, which is used to handle places such as industrial workshops and underground parking lots that have medium-precision requirements for humidity and no requirements for temperature. The first cold water coil 211 and the second cold water coil 212 in the pre-treatment dehumidifier 21 cooperate to first preliminarily dehumidify the air using a relatively high cooling medium temperature, and then deeply condense and separate water with a lower temperature cooling medium, effectively reducing the air humidity. This design enables the air treatment system to achieve more refined and energy-efficient humidity control when facing more complex humidity requirements, further enhancing its adaptability and competitiveness in multiple scenarios.

[0038] In an embodiment of the present invention, the fourth dehumidification module is provided with a pre-treatment dehumidifier 21 and a heat pipe dehumidifier. The input end of the heat pipe dehumidifier is connected to the output end of the pre-treatment dehumidifier 21. The pre-treatment dehumidifier 21 uses a 7-degree Celsius cooling medium at normal temperature and pressure, and the heat pipe dehumidifier uses a 0-degree Celsius cooling medium at normal temperature and pressure, so that the fourth dehumidification module achieves the effect of dehumidification and reheating. The dehumidification amount required in the fourth scenario is between the requirements of the first scenario and the second scenario and requires reheating. Specifically for the medium-high humidity scenario between the requirements of the first and second scenarios, the control module is further configured to drive the fourth dehumidification module to operate according to the fourth scenario requirements. Specifically, the fourth dehumidification module is composed of a series connection of the pre-treatment dehumidifier 21 and the heat pipe dehumidifier. The output end of the pre-treatment dehumidifier 21 is directly connected to the input end of the heat pipe dehumidifier. Among them, the pre-treatment dehumidifier 21 is connected to a cold source supply device that provides 7 degrees Celsius, and the heat pipe dehumidifier provides a cold source supply device that provides 0 degrees Celsius, thus forming an efficient dehumidification and reheating process. When the fourth dehumidification module is started according to the fourth scenario requirements (such as museums, archives, etc.) fed back by the load end, the air first enters the pre-treatment dehumidifier 21 and flows through the first cold water coil 211 and the second cold water coil 212 in sequence. With the gradual cooling of the cooling medium, deep humidity removal is achieved, and at this time, the air temperature drops to a relatively low level. Subsequently, the processed low-temperature and low-humidity air is transported to the heat pipe dehumidifier. In the condensation part 103 of the heat pipe dehumidifier, the refrigerant in the condensation part 103 changes from a gaseous state to a liquid state, releasing a large amount of heat. These heats are cleverly used to heat the air, enabling the air to regain an appropriate temperature increase after dehumidification, meeting the dual requirements of the place for air temperature and humidity. This design not only broadens the coverage range of the system for humidity requirements, but also provides a customized air treatment solution for specific places through the reheating function of the heat pipe technology, achieving the perfect combination of dehumidification and temperature increase, and further enhancing the practicality and market competitiveness of the system.

[0039] In an embodiment of the present invention, the air treatment method further proposes a cold source supply module 30. The cold source supply module 30 includes an ice slurry machine 301 and a cold source supply tank 302. The input end of the cold source supply tank 302 is connected to the ice slurry machine 301, and the single cold water coil 104 or the second cold water coil 212 is connected to the output of the cold source supply tank 302. Please refer to Figure 2 , through the internal pipeline system, the cold source medium at an appropriate temperature and flow rate is transported to the single cold water coil 104, or after being precisely regulated, it is transported to the second cold water coil 212 to ensure that the temperature of its cooling medium is maintained at a relatively low level (such as 5 degrees Celsius) to meet the deep dehumidification requirements of the pretreatment dehumidifier 21. Such a configuration enables the cold source supply module 30 to flexibly allocate the flow rate and temperature of the cold source medium according to the overall operating conditions of the system and the dehumidification requirements of different modules, achieving the optimal utilization of energy. When the first dehumidification module 10 operates alone to cope with medium and low humidity demand scenarios, the cold source supply module 30 can reasonably distribute the cooling capacity to ensure the efficient cooling and dehumidification of the single cold water coil 104; when the second dehumidification module 20 is started and facing high-precision low humidity requirements, it can also provide a sufficient amount of low-temperature cold source for the second cold water coil 212, cooperating with the rotary dehumidifier 22 to achieve the ultra-low humidity control target, thereby enhancing the adaptability and energy efficiency of the entire system and ensuring that the system can operate stably and efficiently under diverse humidity requirements.

[0040] Furthermore, the cold source supply system further includes a cold source buffer tank 303. The cold source buffer tank 303 is connected to the ice slurry machine 301 and the cold source supply tank 302, that is, the ice-water mixture from the ice slurry machine 301 passes through the cold source buffer tank 303, the cold source supply tank 302 to the cooling coil in sequence. When the refrigeration demand is low, the ice-water mixture can be stored in the buffer tank, and when the refrigeration demand peaks, the buffer tank can provide additional cooling capacity to ensure the stable operation of the system; the cold source supply system can operate during the off-peak electricity period, and the generated cooling medium can be stored in the cold source buffer tank 303 and used during the peak electricity period, taking advantage of the peak-valley electricity price difference to further reduce the refrigeration cost.

[0041] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made under the inventive concept of the present invention by using the content of the specification and drawings of the present invention, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims

1. An air treatment method, characterized in that, The air treatment method includes: Obtaining the air humidity requirement and air temperature requirement for different environments, and determining the first limit dehumidification capacity and the second limit dehumidification capacity of the cooling medium according to the temperature of the cooling medium, where the second limit dehumidification capacity is greater than the first limit dehumidification capacity; When the air humidity requirement of an environment is within the dehumidification range of the first limit dehumidification capacity, if the temperature of the processed air after dehumidification is lower than the air temperature requirement of the corresponding environment, driving the first dehumidification module to dehumidify and reheat the processed air; When the air humidity requirement of an environment is within the dehumidification range of the second limit dehumidification capacity, driving the second dehumidification module to dehumidify the processed air; When the air humidity requirement is within the dehumidification range between the first limit dehumidification capacity and the second limit dehumidification capacity, driving the third dehumidification module or the fourth dehumidification module to cool the processed air.

2. The air treatment method according to claim 1, characterized in that, When the air humidity requirement is within the dehumidification range between the first limit dehumidification capacity and the second limit dehumidification capacity, driving the third dehumidification module or the fourth dehumidification module to cool the processed air, including: When the air humidity requirement is within the dehumidification range between the first limit dehumidification capacity and the first limit dehumidification capacity, judging the temperature of the processed air after dehumidification and the air temperature requirement; If the temperature of the processed air after dehumidification is not less than the air temperature requirement of the corresponding environment, driving the third dehumidification module to dehumidify the processed air; If the temperature of the processed air after dehumidification is lower than the air temperature requirement of the corresponding environment, driving the fourth dehumidification module to dehumidify and reheat the processed air.

3. The air treatment method according to claim 2, characterized in that, The first dehumidification module (10) includes at least one heat pipe dehumidifier, and the heat pipe dehumidifier includes a housing (101), a dehumidifying heat pipe, and a single cold water coil (104). The dehumidifying heat pipe and the single cold water coil (104) are both arranged in the housing (101). The dehumidifying heat pipe includes an evaporation part (102) and a condensation part (103); wherein, the housing (101) is provided with a processing channel having an input end and an output end, and the single cold water coil (104) is located between the evaporation part (102) and the condensation part (103) along the air flow path of the processing channel.

4. The air treatment method according to claim 3, characterized in that, The housing (101) includes a first flow layer (1011) and a second flow layer (1012) which are connected in communication. The first flow layer (1011) and the second flow layer (1012) are arranged up and down. The evaporation part (102) is located in the first flow layer (1011), and the condensation part (103) is located in the second flow layer (1012); Wherein, the first flow layer (1011) has the input end, and the second flow layer (1012) has the air outlet.

5. The air treatment method according to claim 4, characterized in that, The heat pipe dehumidifier further includes a bypass valve (105). The bypass valve (105) is arranged at the overlapping part between the first flow layer (1011) and the second flow layer (1012), and is located on the side of the evaporation part (102) facing the input end.

6. The air treatment method according to claim 3, wherein The second dehumidification module (20) includes a pretreatment dehumidifier (21) and a rotary dehumidifier (22). The input end of the rotary dehumidifier (22) is connected to the output end of the pretreatment dehumidifier (21). The pretreatment dehumidifier (21) has a first cold water coil (211) and a second cold water coil (212). The first cold water coil (211) and the second cold water coil (212) are arranged in series through a pipeline; the first cold water coil (211) is arranged near the input end of the pretreatment dehumidifier (21), and the second cold water coil (212) is arranged near the output end of the pretreatment dehumidifier (21); The input end of the rotary dehumidifier (22) is connected to the output end of the second cold water coil (212); Wherein, the temperature of the cooling medium of the second cold water coil (212) is lower than that of the cooling medium of the first cold water coil (211).

7. The air treatment method according to claim 6, wherein The third dehumidification module has the pretreatment dehumidifier (21).

8. The air treatment method according to claim 7, characterized in that, The fourth dehumidification module is provided with the pretreatment dehumidifier (21) and the heat pipe dehumidifier. The input end of the heat pipe dehumidifier is connected to the output end of the pretreatment dehumidifier (21).

9. The air treatment method according to claim 7, characterized in that, The provision of the first dehumidification module, the second dehumidification module, the third dehumidification module and the fourth dehumidification module further includes: Providing a cold source supply module (30). The cold source supply module (30) includes a slush maker (301) and a cold source supply tank (302). The input end of the cold source supply tank (302) is connected to the slush maker (301). The single cold water coil (104) or the second cold water coil (212) is connected to the output end of the cold source supply tank (302).

10. The air treatment method according to claim 9, characterized in that, The cold source supply module (30) further includes a cold source buffer tank (303). The cold source buffer tank (303) is connected to the slush maker and the cold source supply tank (302).

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