A large air conditioning cooling system and a control method thereof

Abstract

This invention provides a large-scale air conditioning cooling system and its control method. The large-scale air conditioning cooling system includes a condensate evaporation cooling device, a humid air heating and condensation device, and a monitoring device. The condensate evaporation cooling device is at least located around the air inlet side of the outdoor unit of the air conditioner. The condensate evaporation cooling device includes a water curtain assembly for receiving and storing condensate from the indoor unit of the air conditioner. The water curtain assembly is used to cool the air blown towards the condenser of the outdoor unit. The humid air heating and condensation device is located at the top of the air outlet of the outdoor unit. The humid air heating and condensation device is used to raise the hot, humid air discharged from the air outlet and sequentially heat and condense it into water. The condensate collection device has a connected input space and an output space. The input space introduces condensate from the water vapor of the humid air heating and condensation device and condensate from the indoor unit of the air conditioner, respectively. The output space supplies water to the condensate evaporation cooling device. The monitoring device includes a water level sensor for monitoring the water level in the condensate collection device. This invention achieves low-cost, energy-saving, and water-saving cooling effects, possessing both economic and environmental value.

Description

Technical Field

[0001] This application relates to a large-scale air conditioner and its control method, and more particularly to a large-scale air conditioning cooling system and its control method. Background Technology

[0002] As is well known, air conditioning is a necessity for life in areas where the temperature is above 26 degrees Celsius every summer. This is especially true for service industry venues such as shopping malls and office buildings, as well as public places such as subways. Due to their larger spaces and more large air conditioning equipment, the daily operating expenses for air conditioning are relatively high. Moreover, with the development of AI and large data centers, the demand for cooling in these places is constantly increasing, ultimately leading to high electricity costs for cooling in service industry venues and public places.

[0003] Currently, to save businesses significant electricity costs, there is a need to improve the cooling efficiency of large air conditioners, which requires increasing water usage. However, in arid regions where water resources are precious, water recycling is also necessary. Therefore, there is an urgent need for a relatively low-cost, water-saving, and more energy-efficient air conditioning cooling system for large air conditioners. Summary of the Invention

[0004] In view of the above problems, embodiments of the present invention provide a large-scale air conditioning cooling system and its control method, which can achieve a cooling effect with low cost and excellent energy and water conservation performance, and has significant economic and environmental value.

[0005] To achieve the above objectives, the embodiments of the present invention provide the following technical solutions: A first aspect of this invention provides a large-scale air conditioning cooling system, wherein the large-scale air conditioner includes an indoor unit and an outdoor unit respectively disposed in a refrigeration location and outdoors; the large-scale air conditioning cooling system includes: A condensate evaporation cooling device, wherein the condensate evaporation cooling component is at least located around the air inlet side of the outdoor unit of the air conditioner; the condensate evaporation cooling device includes a water curtain component for receiving and storing condensate from the indoor unit of the air conditioner; the water curtain component is used to cool the air blown toward the condenser of the outdoor unit of the air conditioner. A humid air heating and condensing device is installed at the top of the air outlet of the outdoor unit of the air conditioner; the humid air heating and condensing device is used to raise the hot and humid air discharged from the air outlet and sequentially heat and condense it into water. A condensate collection device has an input space and an output space that are connected to each other. The input space introduces condensate from the water vapor of the humid and hot air heating condensation device and condensate from the indoor unit of the air conditioner, respectively. The output space supplies water to the condensate evaporation cooling device. The monitoring device includes a water level sensor for monitoring the water level in the condensate collection device.

[0006] In one optional embodiment, the condensate collection device includes a condensate collection tank and filter baffles disposed within the condensate collection tank. The multiple filter baffles divide the condensate collection tank into an input space, an output space, and at least one filter space located between the input space and the output space. The water level sensor includes a first water level sensor A and a first water level sensor B respectively disposed within the input space and the output space.

[0007] In one optional embodiment, the humid and hot air heating and condensing device includes a wind cap and a cooling tower assembly connected in sequence from top to bottom. The cooling tower assembly further includes a condensing tower body, a heating tower body, and a tower base connected in sequence from top to bottom. The condensing tower body is provided with a water collection tank for temporarily storing the water droplets.

[0008] In one optional embodiment, the condensate evaporation cooling device further includes a movable spray assembly disposed outside the water curtain assembly, the movable spray assembly being used to spray water droplets along the vertical surface of the water curtain assembly to replenish water. The monitoring device also includes an image acquisition unit for monitoring the drying status of the water curtain assembly.

[0009] In one optional embodiment, the water curtain assembly includes a frame-type water curtain box detachably connected to the outdoor unit of the air conditioner and a corrugated paper water curtain disposed within the frame-type water curtain box. The top of the frame-type water curtain box is provided with a water guide groove, which is used to guide the condensate water of the indoor unit of the air conditioner to the corrugated paper water curtain. The mobile spray assembly includes a guide rail module and a spray head that are detachably connected to the frame-type water curtain box. The spray head is disposed on the guide rail module and can be displaced in the horizontal and vertical directions within the vertical plane. The output space supplies water to the water guide channel and the spray head respectively, and the water guide channel is equipped with a second water level sensor.

[0010] In one optional embodiment, the large air conditioning cooling system further includes a hot water circulation component, which exchanges heat with the compressor inside the outdoor unit of the air conditioner, and the high-temperature refrigerant of the compressor continuously provides heat to the hot water circulation component; The monitoring device also includes a first temperature sensor for monitoring the outlet temperature of the hot water circulation device and a second temperature sensor for monitoring the refrigerant outlet temperature of the compressor.

[0011] A second aspect of this invention provides a control method applied to the aforementioned large-scale air conditioning cooling system, comprising: After the large air conditioner starts up and completes its self-test, acquire the raw sensor data and direct sensor data of the monitoring device; Based on the comparison results of the sensor raw data and sensor direct data, it is determined whether the monitoring device should be operated. When the sensor raw data and sensor direct data are consistent, the monitoring device starts to operate; otherwise, a manual inspection is prompted to check for errors. After the manual inspection is completed, the self-test is repeated until the monitoring device can be operated. The operation ends after the large air conditioner is turned off. The operation of the monitoring device includes parallel operation of additional water supply management sub-processes, spray management sub-processes, water guide channel water supply management sub-processes, and humid air heating and condensation management sub-processes.

[0012] In one optional embodiment, the additional water supply management subprocess includes: Real-time acquisition of the first water level data of the condensate collection tank and the humidity data of the refrigeration area; If the first water level is lower than the first water level threshold, control whether to start supplying additional water to the condensate collection tank based on the first water level and humidity data. in, If the humidity data is greater than the first water level threshold, the system will start the additional water supply; if the humidity data is less than the first water level threshold, the system will disconnect the additional water supply.

[0013] In one optional embodiment, the sprinkler management subprocess includes: The spraying area is segmented into color blocks according to the camera range of the image acquisition device; Wet and dry image data of the corrugated paper water curtain corresponding to each color block are acquired in real time and humidity threshold is determined. When the humidity level is below the threshold, it is determined to be dry, and the spray head is moved to this position to start spraying; otherwise, the spraying stops.

[0014] In one optional embodiment, the water supply management subprocess of the water guide channel includes: The system acquires the second water level data of the water guide channel in real time and determines the second water level threshold. When the water level is lower than the second water level threshold, the system controls the condensate collection tank to supply water to the water guide channel. When the water level is higher than the second water level threshold, the system controls the condensate collection tank to disconnect from the water supply.

[0015] Compared with related technologies, the large-scale air conditioning cooling system and its control method provided in this invention, by coordinating the evaporation cooling device and the condensate collection device, can effectively cool the outdoor unit of the air conditioner by utilizing the evaporation of condensate from the indoor unit. Compared with traditional water-cooling systems, this method offers more precise control, higher evaporation efficiency, and thus greater energy savings. Furthermore, by incorporating the synergistic condensate collection device and the humid air heating condensation device, and using a condensation tower to reuse the humid hot air, water resources can be effectively conserved. Therefore, the large-scale air conditioning cooling system and its control method of this invention create a relatively low-cost, more energy-efficient, and water-saving cooling system for large-scale air conditioners, saving enterprises significant electricity costs. This is especially valuable in water-scarce regions, where its economic and environmental benefits are even more pronounced.

[0016] In addition to the technical problems solved by the embodiments of this disclosure, the technical features constituting the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions described above, other technical problems that can be solved by the folded strip wall type underground continuous wall foundation and its bearing capacity calculation method provided by the embodiments of this disclosure, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further explained in detail in the specific implementation. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a perspective view of a large-scale air conditioning cooling system provided in an embodiment of the present invention, which includes a large-scale air conditioner but does not include a hot water circulation device. Figure 2 A top view of a large air conditioning cooling system provided in an embodiment of the present invention; Figure 3 A perspective view of a humid air heating and condensation device in a large air conditioning cooling system provided in an embodiment of the present invention; Figure 4 An exploded view of the humid air heating and condensation device in a large air conditioning cooling system provided in an embodiment of the present invention; Figure 5 A perspective view of the cooling tower assembly of the humid air heating and condensation device in a large-scale air conditioning cooling system provided in an embodiment of the present invention; Figure 6 A top view of the cooling tower assembly of the humid air heating and condensation device in a large air conditioning cooling system provided in an embodiment of the present invention; Figure 7 for Figure 6 Sectional view at point AA; Figure 8 A perspective view of the condensate evaporation cooling device in a large air conditioning cooling system provided in an embodiment of the present invention; Figure 9 An exploded view of the condensate evaporation cooling device in a large air conditioning cooling system provided in an embodiment of the present invention; Figure 10 This is a top view of the condensate evaporation cooling device in a large air conditioning cooling system provided in an embodiment of the present invention; Figure 11 A perspective view of a water curtain assembly in a large air conditioning cooling system provided in an embodiment of the present invention; Figure 12 A perspective view of the fixed overflow rack of the water curtain assembly in a large air conditioning cooling system provided in an embodiment of the present invention; Figure 13 A perspective view of a condensate collection device in a large air conditioning cooling system provided in an embodiment of the present invention; Figure 14 This is a schematic diagram of a hot water circulation device in a large-scale air conditioning cooling system provided in an embodiment of the present invention; Figures 15-21 A flowchart illustrating the control method provided in an embodiment of the present invention; Figure 22 and Figure 23 A schematic diagram of the hardware configuration for implementing the control method provided in the embodiments of the present invention.

[0019] Explanation of reference numerals in the attached figures: 100 - Large-scale air conditioning cooling system; 110 - Condensate evaporation cooling device; 111-Water curtain assembly; 1111-Frame-type water curtain box; 1112-Corrugated paper water curtain; 1113-Water guide channel; 1114-Fixed overflow rack; 112-Mobile spray assembly; 1121-Guide rail module; 1122-Spray head; 120 - Humid and hot air heating and condensation device; 121 - Hood; 122 - Condensation tower body; 1221 - Water collection tank; 123 - Heating tower body; 124-Base; 130 - Condensate collection device; 131-Condensate collection tank; 1311-Input space; 1312-Output space; 1313-Filtration space; 132 - Filter baffle; 140 - Hot water circulation device; 150 - Humidifier; 160 - Monitoring device; 161 - Image Acquisition Device; 200-Large air conditioner; 210 - Indoor unit of air conditioner; 220 - Air conditioner outdoor unit; 221 - Air Inlet; 222 - Air outlet; 223 - Compressor. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0021] like Figure 1 and Figure 2 As shown in the figure, an embodiment of the present invention provides a large-scale air conditioner 200 cooling system 100, wherein the large-scale air conditioner 200 includes an indoor unit 210 and an outdoor unit 220 respectively installed in a refrigeration location and outdoors. The large-scale air conditioner 200 cooling system 100 includes a condensate evaporation cooling device 110, a humidified air heating condensation device 120, a condensate collection device 130, a hot water circulation device 140, a humidification device 150, and a monitoring device 160. Each indoor unit 210 of the large-scale air conditioner 200 is connected to the condensate collection device 130 via a condensate pipe.

[0022] like Figures 8 to 10 As shown, in this embodiment of the invention, the condensate evaporation cooling component is at least located around the air inlet 221 of the air conditioner outdoor unit 220; the condensate evaporation cooling device 110 includes a water curtain assembly 111 for connecting to and storing condensate from the air conditioner indoor unit 210; the water curtain assembly 111 is used to cool the air blown toward the condenser of the air conditioner outdoor unit 220.

[0023] In some further embodiments, the water curtain assembly 111 includes a frame-type water curtain box 1111 detachably connected to the outdoor unit 220 of the air conditioner and a corrugated paper water curtain 1112 disposed within the frame-type water curtain box 1111. The top of the frame-type water curtain box 1111 is provided with a water guide groove 1113, which is used to guide the condensate water of the indoor unit 210 of the air conditioner to the corrugated paper water curtain 1112.

[0024] Because the corrugated paper water curtain 1112 becomes more than twice as heavy after absorbing moisture, an excessively large, single-piece corrugated paper water curtain 1112 not only has higher production costs but also has to withstand greater pressure at the bottom, reducing its service life. Therefore, referring to... Figure 11In this embodiment of the invention, small pieces of water curtain paper are spliced ​​together to form a corrugated paper water curtain 1112, which reduces the excessive pressure caused by its own weight, makes it easier to produce and has a relatively lower batch cost.

[0025] In some further embodiments, reference is made to Figure 11 and Figure 12 The water curtain assembly 111 also includes several fixed overflow racks 1114 disposed in the middle of the vertical direction of the frame-type water curtain box 1111. The fixed overflow racks 1114 are detachably connected to the frame-type water curtain box 1111 and are disposed at the overflow hole. On the one hand, the fixed overflow racks 1114 use the overflow hole to let the water in the upper corrugated paper flow to the lower corrugated paper. On the other hand, the main function of the fixed overflow racks 1114 is to support the upper corrugated paper and prevent the lower corrugated paper from being crushed when using a larger area.

[0026] Considering that a moist corrugated paper water curtain 1112 has a larger evaporation area (i.e., microstructure) than a fully soaked corrugated paper water curtain 1112, when the water curtain assembly 111 is large, it is best to add several sets of water guide channels 1113 from top to bottom to ensure that the humidity of the entire corrugated paper water curtain 1112 is maintained at a certain level. The mechanism is as follows: Because corrugated paper is composed of a fibrous structure, each fiber has a surface area. When the corrugated paper maintains a certain humidity, each fiber can come into contact with the air, thus maximizing the evaporation efficiency of the corrugated paper. However, the more water the corrugated paper absorbs, the more limited the fibers involved in evaporation become to the surface of the paper, resulting in lower evaporation efficiency. Insufficient water will also lead to insufficient effective evaporation area (a small amount of water can only wet the upper half of the corrugated paper in the evaporator before evaporating completely, while the lower half does not participate in evaporation and cooling). It should be noted that the water curtain assembly 111 can also be used directly in small homes or commercial spaces where the outdoor unit 220 is located below the condensate outlet of the indoor unit 210. It can effectively cool the outdoor unit 220 by utilizing the potential energy of water and the evaporation of its own condensate. It also has the advantages of energy saving, environmental protection, maintenance-free operation, easy replacement, and low cost.

[0027] For large air conditioners 200 where the outdoor unit 220 is typically placed far from or above the cooling area, this embodiment requires the use of a condensate collection device 130 to guide the condensate from the evaporator of the indoor unit 210 to the corrugated paper water curtain 1112 via a water guide trough 1113. Simultaneously, the corrugated paper water curtain 1112 is placed at the air inlet 221 of the outdoor unit 220 using a frame-type water curtain box 1111. The wetted corrugated paper water curtain 1112 is then evaporated and heat absorbed by the condenser fan inside the outdoor unit 220. The resulting low-temperature air is then introduced into the condenser of the outdoor unit 220 for effective cooling, thereby reducing air conditioning energy consumption. Since no additional water resources are required, this method is more energy-efficient and environmentally friendly.

[0028] In some embodiments, refer to Figures 8 to 10 The condensate evaporation cooling device 110 also includes a movable spray assembly 112 disposed outside the water curtain assembly 111. The movable spray assembly 112 is used to spray water droplets along the vertical surface of the water curtain assembly 111 to replenish water.

[0029] With the help of the mobile spray assembly 112, the water curtain assembly 111 can be sprayed precisely by active spraying. Combined with the image acquisition device 161 of the monitoring device 160 to monitor and analyze the water absorption degree of the water curtain paper, and the water curtain assembly 111 can be sprayed precisely by moving up and down through the guide rail module 1121, so that the water curtain assembly 111 can have the best evaporation effect.

[0030] In some further embodiments, the movable spray assembly 112 includes a guide rail module 1121 detachably connected to the frame-type water curtain box 1111 and a spray head 1122, the spray head 1122 being disposed on the guide rail module 1121 and being movable in the lateral and longitudinal directions within the vertical plane.

[0031] Specifically, the spray head 1122 is equipped with a booster pump to increase water pressure so that the spray head 1122 can spray water mist of appropriate size. Furthermore, the booster pump can be installed in the output space 1312 and then connected to the spray head 1122 via a water supply pipe, on which a solenoid valve is installed. Preferably, the spray head 1122 is controlled to spray water droplets rather than atomized spraying because atomized spraying requires higher water pressure and lower water output, which increases electricity consumption. Water droplet spraying reduces electricity costs, and the smaller water droplets penetrate the corrugated paper more quickly, resulting in a faster cooling effect.

[0032] For example, refer to Figure 8 and Figure 9 The guide rail module 1121 may include a horizontal guide rail, a vertical guide rail, a horizontal stepper motor, and a vertical stepper motor. The vertical guide rail is fixedly connected to the frame-type water curtain box 1111 or its exterior. The spray head 1122 is slidably mounted on the horizontal guide rail and driven by the horizontal stepper motor. The horizontal guide rail is slidably mounted on the vertical guide rail and driven by the vertical stepper motor. Specifically, an open-source 3D printer control circuit, such as the MKS series or the STM32F446 motherboard, can be used to control the start and stop of the horizontal and vertical stepper motors. Both can use belt drives to allow the horizontal guide rail or spray head 1122 mounted on the corresponding guide rail to move on the vertical plane of the water curtain assembly 111, thereby achieving precise spraying.

[0033] like Figures 3 to 6As shown, in this embodiment of the invention, the hot and humid air heating and condensing device 120 is disposed on the top of the air outlet 222 of the outdoor unit 220 of the air conditioner; the hot and humid air heating and condensing device 120 is used to raise the hot and humid air discharged from the air outlet 222 and sequentially heat it up and condense it into water.

[0034] The design principle of the humid and hot air heating and condensing device 120 in this embodiment of the invention is that the temperature at high altitudes is lower than the ground temperature. The steam can not only actively drive the airflow, thereby reducing the exhaust power of the fan of the air conditioner outdoor unit 220 and achieving energy saving, but also has better condensing efficiency than room temperature.

[0035] Because large-scale refrigeration systems (i.e., large-scale air conditioners 200) require larger installation sites, more investment, and more energy consumption, the humid and hot air heating and condensing device 120 of this embodiment of the invention is conducive to recovering costs in a shorter period of time and has high economic benefits.

[0036] In some embodiments, such as Figure 3 and Figure 4 As shown, the humid and hot air heating and condensing device 120 includes a wind cap 121 and a cooling tower assembly connected in sequence from top to bottom. The cooling tower assembly includes a condensing tower body 122, a heating tower body 123, and a tower base 124 connected in sequence from top to bottom. The heating tower body 123 is configured to increase the temperature of the hot and humid air, causing it to form water vapor in the condensing tower body 122. The condensing tower body 122 is used to condense the water vapor into water droplets. The condensing tower body 122 is provided with a water collection tank 1221 for temporarily storing water droplets.

[0037] For example, refer to Figure 5 and Figure 6 The condenser tower 122 is entirely made of metal and has external heat sinks. It condenses a portion of the heated steam into water droplets, which are then channeled through the lower water collection tank 1221 and condensate pipes into the condensate collection basin 131 for reuse. (Refer to...) Figure 4 The tower base 124 supports the condenser tower body 122 and the heating tower body 123, among other components. (Refer to...) Figure 4 The heating tower body 123 may be equipped with a heating channel through which hot and humid air flows. More specifically, the heating tower body 123 may be made of transparent material, with the inner wall coated with black paint to absorb sunlight and form a heating channel, thereby increasing the temperature of the hot and humid air, so that more water vapor can be condensed when it reaches the condensation tower body 122.

[0038] In use, hot and humid air rises upward through the tower base 124, which is tens of meters high. The heating channel and heat sink sequentially reheat and cool down the hot and humid air, and some of the condensed water vapor enters the evaporation cycle of the condensate evaporation cooling device 110, thereby producing a water-saving effect.

[0039] like Figure 13 As shown, the condensate collection device 130 in this embodiment of the invention has an input space 1311 and an output space 1312 that are connected to each other. The input space 1311 introduces condensate from the water vapor of the humid and hot air heating condensation device 120 and condensate from the air conditioner indoor unit 210, respectively. The output space 1312 delivers water to the condensate evaporation cooling device 110. In some embodiments, refer to Figure 13 The condensate collection device 130 includes a condensate collection tank 131 and a filter baffle 132 disposed in the condensate collection tank 131. The multi-stage filter baffle 132 divides the condensate collection tank 131 into an input space 1311, an output space 1312, and at least one filter space 1313 located between the input space 1311 and the output space 1312. The output space 1312 respectively supplies water to the water guide trough 1113 and the spray head 1122.

[0040] Because fine particles such as dust in impurities fill the gaps between fibers in corrugated paper, they continuously reduce the evaporation surface area of ​​the corrugated paper, thereby reducing evaporation efficiency. Therefore, the condensate collection device 130 collects condensate and other water sources while also removing impurities through multiple filtration spaces 1313, thereby increasing the service life of the corrugated paper water curtain 1112.

[0041] like Figure 14 As shown, in this embodiment of the invention, the hot water circulation device 140 exchanges heat with the compressor 223 inside the air conditioner outdoor unit 220, and the high-temperature refrigerant of the compressor 223 continuously provides heat to the hot water circulation device 140. By setting up the hot water circulation device 140 to exchange heat with the casing of the compressor 223 of the air conditioner outdoor unit 220, waste heat can be utilized more efficiently, thereby achieving greater energy conservation and emission reduction.

[0042] In specific implementation, refer to Figure 14 The hot water circulation device 140 corresponds to an independent system, such as the zero cold water system in shopping malls and hotels. It is essentially a circulating hot water pipe. Some household gas water heaters also have such circulating hot water pipes. This circulating hot water pipe continuously circulates hot water for use through a water pump and a solenoid valve.

[0043] like Figures 1 to 3 As shown, the humidification device 150 in this embodiment of the invention is installed in a refrigeration environment to increase air humidity.

[0044] Based on the principle that air is a poor conductor of heat, but the presence of a large number of water molecules in the air increases its thermal conductivity, using a humidifier 150 to maintain constant humidity in a refrigerated space can not only improve comfort but also enhance the space's cooling efficiency and increase the cold circulation efficiency of the refrigerated area.

[0045] The monitoring device 160 includes a first water level sensor for monitoring the water level in the condensate collection device 130, a second water level sensor for monitoring the water level in the water guide tank 1113, a humidity sensor for monitoring air humidity, an image acquisition unit 161 for monitoring the dryness of the water curtain assembly 111, a first temperature sensor for monitoring the outlet temperature of the hot water circulation device 140, and a second temperature sensor for monitoring the refrigerant outlet temperature of the compressor 223.

[0046] The monitoring device 160 enables better monitoring and control of the entire system. By monitoring the water level in the condensate collection tank 131 through the first water level sensor, and by periodically rinsing the corrugated paper based on the amount of water remaining in the tank after evaporation, the corrugated paper can be kept clean and the evaporation efficiency can be improved.

[0047] In some more specific embodiments, the first water level sensor includes a first water level sensor A and a first water level sensor B respectively disposed in the input space 1311 and the output space 1312. The input space 1311 is also connected to an additional water supply pipe, on which a solenoid valve is installed. The output space 1312 is also equipped with a water pump connected to a water guide trough 1113 via a water supply pipe, which is also equipped with a solenoid valve. The second water level sensor is disposed in the water guide trough 1113. The image acquisition device 161 can be four cameras evenly arranged outside the four air inlets 221 of the air conditioner outdoor unit 220, used to capture images for humidity identification. The humidification device 150 is a humidifier installed in the refrigeration area, connected to a water supply pipe, on which a solenoid valve is installed.

[0048] In practice, the first water level sensor A and the first water level sensor B are used to sense the water level at both ends of the multi-stage filter baffle, which can prevent the filter baffle from degrading and causing water level imbalance, resulting in water overflowing at one end and no water entering at the other end, thus preventing the idling phenomenon.

[0049] This invention also provides a control method applied to the cooling system 100 of the aforementioned large air conditioner 200, comprising: Reference Figure 15 After the large air conditioner 200 starts up and completes its self-test, it acquires the raw sensor data and direct sensor data of the monitoring device 160. Based on the comparison results of the raw sensor data and direct sensor data, it determines whether the monitoring device 160 should be run. When the raw sensor data and direct sensor data are consistent, the monitoring device 160 starts running; otherwise, it prompts for manual inspection to troubleshoot errors. After the manual inspection is completed, the self-test is repeated until the monitoring device 160 can be run. The operation ends after the large air conditioner 200 is turned off. Among them, reference Figure 16The operation of the monitoring device 160 includes parallel operation of additional water supply management sub-processes, spray management sub-processes, water supply management sub-processes of water guide trough 1113, humid air heating and condensation management sub-processes, hot water circulation management sub-processes, and humidification management sub-processes.

[0050] During initial system installation, since there is no condensate in the condensate collection tank 131, additional water supply is required from the additional water supply subprocess. In some embodiments, refer to Figure 17 Additional water supply management sub-processes include: Real-time acquisition of the first water level data of the condensate collection tank 131 and the humidity data of the refrigeration area; If the first water level is lower than the first water level threshold, control whether to start additional water supply to the condensate collection tank 131 based on the first water level and humidity data. in, If the humidity data is greater than the first water level threshold, the system will start the additional water supply; if the humidity data is less than the first water level threshold, the system will disconnect the additional water supply.

[0051] In practice, the data returned by the water level sensor in the condensate collection tank 131 and the humidity data of the refrigeration site are used as the basis for judgment. When the water level in the condensate collection tank 131 is lower than the threshold, a judgment is made. When the humidity of the refrigeration site is higher than the threshold, an additional water supply is started, and the solenoid valve is opened to connect the water supply system of the site. When the humidity is lower than the threshold, no additional water supply is performed.

[0052] In some embodiments, refer to Figure 18 The water supply management subprocess of water guide channel 1113 includes: The second water level data of the water guide tank 1113 is acquired in real time and the second water level threshold is determined. When the water level is lower than the second water level threshold, the condensate collection tank 131 is controlled to supply water to the water guide tank 1113. When the water level is higher than the second water level threshold, the water supply to the condensate collection tank 131 is cut off.

[0053] In practice, the real-time data of the water level sensor in the water guide tank 1113 is used to determine the threshold. When the water level is below the threshold, the water pump is started to supply water to the water guide tank 1113. When the sensor data is above the threshold, the water pump is stopped.

[0054] In some embodiments, the humid air heating and condensation management subprocess includes manually inspecting the humid air heating and condensation device 120 to ensure that it is in normal operating condition.

[0055] In some embodiments, refer to Figure 21 The hot water circulation management subprocess includes: Acquire the temperature data of the outlet pipe of the compressor 223 and the temperature data of the hot water pipe of the hot water circulation device 140; Based on the comparison between the water outlet pipe temperature data of compressor 223 and the hot water pipe temperature data, it is determined whether the hot water circulation device 140 should flow through compressor 223. If the water outlet pipe temperature data of compressor 223 is greater than the hot water pipe temperature data, the hot water circulation device 140 is controlled to flow through compressor 223 to exchange heat with it. If the water outlet pipe temperature data of compressor 223 is less than the hot water pipe temperature data, the hot water circulation device 140 is controlled not to flow through compressor 223.

[0056] In practice, when the temperature of the water outlet pipe of compressor 223 is higher than that of the hot water pipe, the water pump is started and the solenoid valve is opened. At this time, the water in the zero-cold water system of the commercial place circulates through the air conditioner compressor 223 through the water pump and carries away the higher heat. When the temperature of the water outlet pipe of compressor 223 is lower than that of the hot water pipe, the water pump stops working and the solenoid valve is closed. At this time, the water in the pipe does not participate in the hot water circulation, cannot carry away the heat of the air conditioner compressor 223, and will not be brought in by the zero-cold water system.

[0057] In some embodiments, refer to Figure 19 The sprinkler management sub-process includes: The spray area is segmented into color blocks according to the camera range of the image acquisition device 161; Wet and dry image data of the corrugated paper water curtain 1112 corresponding to each color block are acquired in real time and humidity threshold is determined. When the humidity level is below the threshold, it is determined to be dry, and the spray head 1122 is moved to this position to start spraying; otherwise, the spraying stops.

[0058] When in use, when the wet corrugated paper water curtain 1112 is divided into several squares according to a uniform size, the front area can be divided into several squares. After the camera takes a picture, it can distinguish whether the square is dry or wet based on the color depth of each square. Then, it sends a control code to the mobile spray assembly 112 to spray it.

[0059] In practice, the system determines the drying area based on the original image data of the corrugated paper, including both dry and wet image data. It then divides the area into color blocks. When a color block is determined to be dry, the system outputs "Move to this position to spray," controlling the stepper motor in the spray system to move to that position and start the booster pump for spraying. The spraying time is manually set by the operator based on the thickness of the wet curtain paper and the wetting speed parameters.

[0060] In some embodiments, refer to Figure 20 The humidification management subprocess includes: Determine the preset humidity data for the refrigerated area; Obtain real-time humidity data for refrigerated areas; Based on the comparison between real-time humidity data and preset humidity data, the system determines whether the humidifier should be turned on or off. If the real-time humidity data is less than the preset humidity data, the system will turn on the humidifier; otherwise, the system will turn off the humidifier.

[0061] In practice, the humidity setting stored in the memory is compared with the humidity data of the refrigeration site to determine whether to turn on the humidifier and the solenoid valve. If the humidity at the site is lower than the set humidity, it is determined that the humidifier and the solenoid valve are turned on, and water is supplied to the humidifier and humidified through the water supply system. If the humidity at the site is higher than the set humidity, the humidifier and the solenoid valve are turned off.

[0062] like Figure 22 The diagram shows the electrical connections of the sensors. In this embodiment of the invention, a low-voltage DC signal is used for data transmission. Figure 23 The diagram shows the control principle of high-voltage power supply. In this embodiment of the invention, a computer outputs a low-voltage signal to control a remote control relay switch circuit, thereby switching the high-voltage power supply on and off, and thus controlling the solenoid valves or water pump switches of various devices.

[0063] To achieve intelligent control, embodiments of the present invention necessarily also provide a control device for a cooling system 100 of a large air conditioner 200, including a processor and a memory storing program instructions. The processor is configured to execute the aforementioned control method when running the program instructions. Embodiments of the present invention necessarily also provide a storage medium storing program instructions, which, when running, execute the aforementioned control method.

[0064] The overall operation process of the control method provided in this embodiment of the invention is as follows: After all the devices are installed, a debugging process should be performed first. This should begin by starting the computer and running... Figure 14 The corresponding main control system performs a self-check, and control parameters and sensor threshold parameters are manually input to verify the accuracy of the data returned by the sensors. This process is then performed by construction personnel. Once this step is complete, the system can be started. Figure 15 The corresponding air conditioning management system comprises six sub-processes: additional water supply, water supply through the water guide trough 1113, spraying, humidified air heating and condensation, hot water circulation, and humidification. The humidified air heating and condensation process and its devices are only manually inspected. After the condensate collection tank 131 is filled with water, the water supply through the water guide trough 1113 and the spraying operation are controlled sequentially, and manual checks are performed. After the air conditioning is started, the hot water circulation and humidification sub-processes can also be activated, and workers check whether the humidified air heating and condensation device 120 is working properly, whether the fan cap 121 rotates normally, and whether the water collection pipe is unobstructed. Once all devices and management sub-processes have been checked, the system can operate normally. After the system has been running for several hours, the mobile spraying assembly 112 should be checked for normal operation, and whether the color block recognition requires adjustment or parameter modification.

[0065] The large-scale air conditioner 200 cooling system 100 and its control method provided in this embodiment of the invention have the following significant advantages: 1) This embodiment of the invention does not have a direct hardware connection with the large air conditioner 200, therefore, it can be applied without modifying the existing large air conditioner 200. Even if the entire cooling system 100 of the large air conditioner 200 is incorporated into the refrigeration system of the large air conditioner 200, only the start-up and temperature adjustment of the air conditioner need to be controlled.

[0066] 2) The embodiments of the present invention improve the evaporation cooling efficiency of the evaporator and are original and efficient in the reuse of air conditioning condensate.

[0067] 3) Compared with traditional water cooling systems, the embodiments of the present invention have more precise control, higher evaporation efficiency, and are more energy-efficient.

[0068] 4) The embodiments of the present invention utilize waste heat more efficiently through heat exchange with the air conditioning compressor 223, resulting in greater energy saving and emission reduction.

[0069] 5) The embodiments of the present invention effectively save water resources by repeatedly reusing the hot and humid water vapor.

[0070] 6) The embodiments of the present invention improve both comfort and cooling efficiency by performing constant humidity treatment on the refrigerated space.

[0071] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any simple modifications and equivalent changes made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A large-scale air conditioning cooling system, the large-scale air conditioner comprising an indoor unit and an outdoor unit respectively installed in a refrigeration area and outdoors; characterized in that, The large-scale air conditioning cooling system includes: A condensate evaporation cooling device is provided, which is at least located around the air inlet side of the outdoor unit of the air conditioner. The condensate evaporation cooling device includes a water curtain assembly for receiving and storing condensate from the indoor unit of the air conditioner, and a movable spray assembly located outside the water curtain assembly. The water curtain assembly is used to cool the air blown towards the condenser of the outdoor unit of the air conditioner. The movable spray assembly is used to spray water droplets along the vertical surface of the water curtain assembly to replenish water. The movable spray assembly includes a spray head. The water curtain assembly includes a frame-type water curtain box detachably connected to the outdoor unit of the air conditioner and a corrugated paper water curtain located inside the frame-type water curtain box. The top of the frame-type water curtain box is provided with a water guide groove, which is used to guide the condensate from the indoor unit of the air conditioner to the corrugated paper water curtain. A humid air heating and condensing device is provided, which is located at the top of the air outlet of the outdoor unit of the air conditioner. The humid air heating and condensing device is used to raise the hot and humid air discharged from the air outlet and sequentially heat and condense it into water. The humid air heating and condensing device includes a wind cap and a cooling tower assembly connected in sequence from top to bottom. The cooling tower assembly includes a condensing tower body, a heating tower body and a tower base connected in sequence from top to bottom. The condensing tower body is provided with a water collection tank for temporarily storing water droplets. A condensate collection device has an input space and an output space that are connected to each other. The input space introduces condensate from the water vapor of the humid and hot air heating condensation device and condensate from the indoor unit of the air conditioner. The output space delivers water to the water guide trough and the spray head. The monitoring device includes a water level sensor for monitoring the water level in the condensate collection device and an image acquisition device for monitoring the drying status of the water curtain assembly.

2. The large-scale air conditioning cooling system according to claim 1, characterized in that, The condensate collection device includes a condensate collection tank and a filter baffle disposed in the condensate collection tank. The multiple filter baffles divide the condensate collection tank into an input space, an output space, and at least one filter space located between the input space and the output space. The water level sensor includes a first water level sensor A and a first water level sensor B respectively disposed in the input space and the output space.

3. A large-scale air conditioning cooling system according to claim 2, characterized in that, The mobile spray assembly also includes a guide rail module that is detachably connected to the frame-type water curtain box. The spray head is mounted on the guide rail module and can be displaced in the horizontal and vertical directions within the vertical plane. A second water level sensor is provided in the water guide channel.

4. A large-scale air conditioning cooling system according to claim 3, characterized in that, The large-scale air conditioning cooling system also includes a hot water circulation device, which exchanges heat with the compressor in the outdoor unit of the air conditioner. The high-temperature refrigerant of the compressor continuously provides heat to the hot water circulation device. The monitoring device also includes a first temperature sensor for monitoring the outlet temperature of the hot water circulation device and a second temperature sensor for monitoring the refrigerant outlet temperature of the compressor.

5. A control method, characterized in that, The control method, applied to the large-scale air conditioning cooling system as described in claim 4, includes: After the large air conditioner starts up and completes its self-test, it acquires the raw sensor data and direct sensor data of the monitoring device. Based on the comparison results of the raw sensor data and direct sensor data, it determines whether to run the monitoring device. When the raw sensor data and direct sensor data are consistent, the monitoring device starts running; otherwise, it prompts for manual inspection to troubleshoot errors. After the manual inspection is completed, the self-test is repeated until the monitoring device can be run. The operation of the monitoring device ends after the large air conditioner is turned off. The operation of the monitoring device includes parallel operation of additional water supply management sub-processes, spray management sub-processes, water guide channel water supply management sub-processes, and humid air heating and condensation management sub-processes.

6. The control method according to claim 5, characterized in that, The sprinkler management sub-process includes: The spraying area is segmented into color blocks according to the camera range of the image acquisition device; Wet and dry image data of the corrugated paper water curtain corresponding to each color block are acquired in real time and humidity threshold is determined. When the humidity level is below the threshold, it is determined to be dry, and the spray head is moved to this position to start spraying; otherwise, the spraying stops.

7. The control method according to claim 5, characterized in that, The water supply management sub-process of the water guide channel includes: The system acquires the second water level data of the water guide channel in real time and determines the second water level threshold. When the water level is lower than the second water level threshold, the system controls the condensate collection tank to supply water to the water guide channel. When the water level is higher than the second water level threshold, the system controls the condensate collection tank to disconnect from the water supply.

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