Air conditioning system, air conditioning system control method, equipment, medium and product

Abstract

The invention provides an air conditioning system, an air conditioning system control method, equipment, a medium and a product, and relates to the technical field of fluorine pump refrigerating systems. Comprising an air-conditioning part, a water-cooling part and an air-cooling part, wherein the air conditioner part comprises an air conditioner refrigerant main pipeline and an air conditioner tail end; the water cooling part comprises a first heat exchanger communicated with the liquid inlet end of the first refrigerant pump, a cooling water pump communicated with the first heat exchanger and a cooling tower communicated with the water inlet end of the cooling water pump, and a pipeline between the cooling water pump and the first refrigerant pump exchanges heat through the first heat exchanger; the air cooling part comprises at least one first refrigerant pump communicating with the air conditioner tail end, a first one-way valve connected with the first refrigerant pump in parallel, a condenser communicating with the liquid inlet end of the first refrigerant pump, an outdoor side draught fan installed on the condenser, a compressor communicating with the air inlet end of the condenser and a second one-way valve connected with the compressor in parallel. According to the air conditioner system, the air conditioner energy efficiency ratio and the overall performance of the air conditioner system are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fluorine pump refrigeration systems, and in particular to an air conditioning system, an air conditioning system control method, equipment, a medium and a product. BACKGROUND

[0002] In modern data rooms, power rooms and battery rooms, etc., a large amount of heat is generated during the continuous operation of the equipment. Overheating not only leads to performance degradation and increased failure rate of the equipment, but also may cause safety hazards and affect service continuity. Effective heat dissipation is the key to ensuring the stable and safe operation of the equipment, which not only ensures the operation of the equipment at a safe temperature and prevents failures and damage caused by overheating, but also improves the performance of the equipment and prolongs its service life.

[0003] In the prior art, in order to improve the reliability of the refrigeration system, a dual-cold-source air conditioning system is widely used for heat dissipation management. This system combines air cooling and water cooling, provides redundant refrigeration capacity, and can realize cold source adaptive switching and cold source redundancy backup, so that when one cold source fails, the other cold source can continue to work to maintain the refrigeration function and improve the reliability of the refrigeration system.

[0004] However, the existing dual-cold-source air conditioning system usually has the problems of high energy consumption and low energy efficiency, resulting in increased operating costs. SUMMARY

[0005] The present application provides an air conditioning system, an air conditioning system control method, equipment, a medium and a product, which can significantly reduce the energy consumption of the air conditioning system while ensuring the refrigeration effect, improve the air conditioning energy efficiency ratio, and effectively improve the overall performance of the air conditioning system.

[0006] In a first aspect, the present application provides an air conditioning system, which comprises: an air conditioning part, a water cooling part and an air cooling part.

[0007] The air conditioning part comprises an air conditioning refrigerant main pipeline and an air conditioning terminal.

[0008] The water cooling part comprises a first heat exchanger in communication with the liquid inlet end of the first refrigerant pump, a cooling water pump in communication with the first heat exchanger, and a cooling tower in communication with the water inlet end of the cooling water pump. The pipeline between the cooling water pump and the first refrigerant pump exchanges heat through the first heat exchanger.

[0009] The air cooling part comprises at least one first refrigerant pump in communication with the air conditioning terminal, a first check valve in parallel with the first refrigerant pump, a condenser in communication with the liquid inlet end of the first refrigerant pump, an outdoor side fan installed on the condenser, a compressor in communication with the air inlet end of the condenser, and a second check valve in parallel with the compressor.

[0010] In a possible design, the water cooling part comprises a first heat exchanger in communication with the liquid inlet end of the first refrigerant pump, a cooling water pump in communication with the first heat exchanger, and a cooling tower in communication with the water inlet end of the cooling water pump, and a pipeline between the cooling water pump and the first refrigerant pump exchanges heat through the first heat exchanger.

[0011] The air cooling part further comprises a second refrigerant pump in communication with the first refrigerant pump, a third one-way valve in parallel with the second refrigerant pump, and a second heat exchanger.

[0012] In a possible design, the second heat exchanger and the first heat exchanger constitute a mixed heat exchanger integrated in the air conditioning system.

[0013] In a possible design, the cooling water pump, the first refrigerant pump, the second refrigerant pump, and the compressor are all frequency conversion.

[0014] In a second aspect, the application provides an air conditioning system control method for controlling the air conditioning system of the first aspect, which is applied to a controller in data connection with the air conditioning system, and comprises the following steps:

[0015] Obtaining indoor sensor data, outdoor sensor data, and a load power curve of a service area of the air conditioning system;

[0016] Determining a total refrigeration capacity required by the system according to the indoor sensor data and a circulating air volume parameter of an air conditioning terminal;

[0017] Determining a water cooling mode power consumption and an air cooling mode power consumption under a current load according to the total refrigeration capacity required by the system, the outdoor sensor data, and the load power curve;

[0018] When it is detected that the water cooling mode power consumption is greater than the air cooling mode power consumption, the air conditioning system is controlled in the air cooling mode, and otherwise, the air conditioning system is controlled in the water cooling mode.

[0019] In a possible design, the indoor sensor data comprises air density, supply air enthalpy, and return air enthalpy.

[0020] Determining the total refrigeration capacity required by the system according to the indoor sensor data and the circulating air volume parameter of the air conditioning terminal comprises:

[0021] Determining the total refrigeration capacity required by the system according to the circulating air volume parameter of the air conditioning terminal, the air density, the supply air enthalpy, and the return air enthalpy.

[0022] In a possible design, after determining the total refrigeration capacity required by the system according to the indoor sensor data and the circulating air volume parameter of the air conditioning terminal, the method further comprises:

[0023] Obtaining a surplus refrigeration capacity of the cooling tower;

[0024] When it is detected that the cooling tower has surplus refrigeration capacity greater than or equal to the total refrigeration capacity required by the system, the air conditioning system is controlled in a water-cooled operation mode; or

[0025] When it is detected that the cooling tower has surplus refrigeration capacity less than the total refrigeration capacity required by the system, the air conditioning system is controlled in a hybrid operation mode; or

[0026] When it is detected that the cooling tower has surplus refrigeration capacity satisfying the condition of no surplus refrigeration capacity, the air conditioning system is controlled in an air-cooled operation mode.

[0027] In a possible design, the method further includes:

[0028] obtaining water-cooled part operation data;

[0029] When it is detected that the system water supplement does not meet the refrigeration capacity requirement, the air conditioning system is switched to an air-cooled operation mode, when it is detected that the outdoor sensor data is in a first temperature interval, the air conditioning system is controlled in a preset refrigerant pump operation mode, or when it is detected that the outdoor sensor data is in a second temperature interval, the air conditioning system is controlled in a preset parallel operation mode, or when it is detected that the outdoor sensor data is in a third temperature interval, the air conditioning system is controlled in a preset compressor operation mode.

[0030] In a third aspect, the present application provides an electronic device, including a processor, and a memory connected with the processor.

[0031] The memory stores computer execution instructions.

[0032] The processor executes the computer execution instructions stored in the memory, to implement the air conditioning system control method in the second aspect.

[0033] In a fourth aspect, the present application provides a computer readable storage medium, the computer readable storage medium stores computer execution instructions, and the computer execution instructions are executed by the processor to implement the air conditioning system control method in the second aspect.

[0034] In a fifth aspect, the present application provides a computer program product, including a computer program, and the computer program is executed by the processor to implement the air conditioning system control method in the second aspect.

[0035] On the basis of the implementation manners of the above aspects, the present application can be further combined to provide more implementation manners.

[0036] The application provides an air conditioning system, an air conditioning system control method, equipment, a medium and a product. The air conditioning system comprises an air conditioning part, a water cooling part and an air cooling part. The air conditioning part comprises an air conditioning refrigerant main pipeline and an air conditioning terminal. The water cooling part comprises a first heat exchanger in communication with an inlet of a first refrigerant pump, a cooling water pump in communication with the first heat exchanger, and a cooling tower in communication with an inlet of the cooling water pump. A pipeline between the cooling water pump and the first refrigerant pump exchanges heat through the first heat exchanger. The air cooling part comprises at least one first refrigerant pump in communication with the air conditioning terminal, a first one-way valve in parallel connection with the first refrigerant pump, a condenser in communication with an inlet of the first refrigerant pump, an outdoor side fan installed on the condenser, a compressor in communication with an air inlet of the condenser, and a second one-way valve in parallel connection with the compressor. The following technical effects are achieved: the water cooling part and the air cooling part are connected in parallel or switchable connection with the first refrigerant pump through the pipeline, so that the air conditioning system can automatically or manually switch between the water cooling mode and the air cooling mode and the mixed mode according to environmental conditions or operation requirements, thereby improving the energy efficiency ratio and adaptability of the air conditioning system; through the cooperative operation of the double cold sources, the refrigeration effect is ensured, the energy consumption of the air conditioning system is significantly reduced, the air conditioning energy efficiency ratio is improved, and the overall performance of the air conditioning system is effectively improved; the key components are designed redundantly, so that a single point failure does not affect the overall operation of the air conditioning system. BRIEF DESCRIPTION OF DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0038] The drawings herein are incorporated into the specification and form part of the specification, show embodiments consistent with the present application, and together with the specification serve to explain the principles of the present application.

[0039] Figure 1 A structure schematic diagram of an air-cooled fluorine pump air conditioning system provided by the embodiment of the present application;

[0040] Figure 2 A structure schematic diagram of a water-cooled fluorine pump air conditioning system provided by the embodiment of the present application;

[0041] Figure 3 A structure schematic diagram of an air conditioning system provided by the embodiment of the present application Figure 1 ;

[0042] Figure 4 A structure schematic diagram of an air conditioning system provided by the embodiment of the present application Figure 2 ;

[0043] Figure 5 Structure diagram of an air conditioning system provided for an embodiment of the present application Figure 3 ;

[0044] Figure 6 Flow diagram of an air conditioning system control method provided for an embodiment of the present application Figure 1 ;

[0045] Figure 7 Diagram of an air conditioning system operation mode provided for an embodiment of the present application Figure 1 ;

[0046] Figure 8 Diagram of an air conditioning system operation mode provided for an embodiment of the present application Figure 2 ;

[0047] Figure 9 Diagram of an air conditioning system operation mode provided for an embodiment of the present application Figure 3 ;

[0048] Figure 10 Diagram of an air conditioning system operation mode provided for an embodiment of the present application Figure 4 ;

[0049] Figure 11 Diagram of an air conditioning system operation mode provided for an embodiment of the present application Figure 5 ;

[0050] Figure 12 Structure diagram of an electronic device provided for an embodiment of the present application.

[0051] Reference signs:

[0052] 110 - outdoor side fan; 120 - condenser; 130 - refrigerant pump; 140 - one-way valve; 150 - expansion valve; 160 - indoor side fan; 170 - compressor; 210 - cooling tower; 220 - water-fluorine heat exchanger; 230 - cooling water pump; 310 - air conditioning terminal; 1301 - first refrigerant pump; 1401 - first one-way valve; 2201 - first heat exchanger; 1402 - second one-way valve; 320 - liquid pipe of air conditioning refrigerant main pipe; 330 - gas pipe of air conditioning refrigerant main pipe; 1302 - second refrigerant pump; 1403 - third one-way valve; 2202 - second heat exchanger; 2203 - mixed use heat exchanger; 1210 - processor; 1220 - memory; 1230 - communication component; 1240 - bus. DETAILED DESCRIPTION

[0053] The exemplary embodiments will be described in detail herein with reference to the attached drawings. The description herein relates to the drawings, in which the same or similar elements, characters or signs have the same or similar meanings as each other, unless otherwise specified. The embodiments described in the following exemplary embodiments do not represent all the embodiments consistent with the present application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the present application as detailed in the appended claims.

[0054] In the embodiments of the present application, the terms such as "first", "second" and the like are used to distinguish different items or similar items having substantially the same function and action. Those skilled in the art can understand that the terms such as "first", "second" and the like do not limit the quantity and execution sequence, and the terms such as "first", "second" and the like do not necessarily mean different. It should be noted that in the embodiments of the present application, the words such as "exemplary" or "for example" are used to represent an example, illustration or description. Any embodiment or design solution described as "exemplary" or "for example" in the present application should not be interpreted as more preferred or more advantageous than other embodiments or design solutions. Rather, the words such as "exemplary" or "for example" are used in the sense of presenting related concepts in a specific manner. In the embodiments of the present application, "at least one" means one or more, and "multiple" means two or more.

[0055] It should be noted that "at" in the embodiments of the present application can be at the moment when a certain condition occurs, or can be within a period of time after a certain condition occurs, which is not specifically limited in the embodiments of the present application. In addition, the air conditioning system control method provided in the embodiments of the present application is only an example, and the air conditioning system control method can also include more or less content.

[0056] In modern data machine rooms, power machine rooms and battery rooms and other key facilities, if the heat generated by the equipment operation cannot be dissipated in time and effectively, it will seriously threaten the stability and safety of the equipment. On the one hand, high temperature environment will cause the performance degradation of internal electronic components, accelerate the aging process, increase the probability of failure, and even cause equipment damage, business interruption and data loss and other serious consequences; on the other hand, the overheating problem will also limit the performance of the equipment, reduce its operating efficiency, and affect the overall business processing capacity. Therefore, ensuring that the equipment operates within a safe temperature range is a basic condition for ensuring the reliable and efficient operation of these key facilities.

[0057] Currently, dual-source air conditioning systems are widely used in the aforementioned scenarios for heat dissipation. These systems innovatively combine air cooling and water cooling, leveraging their complementary advantages to create a redundant cooling mechanism. When one cooling method fails due to malfunction, maintenance, or other reasons, the other can quickly take over the cooling task, continuously providing heat dissipation for the equipment. This significantly improves the reliability and stability of the cooling system and reduces the likelihood of equipment damage caused by heat dissipation interruptions.

[0058] However, existing dual-source air conditioning systems exhibit a prominent problem during actual operation: high energy consumption and low energy efficiency. This is mainly due to the simplistic control method of traditional dual-source air conditioning systems. During operation, the collaborative working mechanism between the two cold sources is not optimized, leading to energy waste under certain conditions and resulting in low overall energy utilization efficiency. With rising energy costs and increasingly stringent energy conservation and emission reduction requirements, this problem severely restricts the further promotion and application of dual-source air conditioning systems. Therefore, there is an urgent need for a dual-source air conditioning system and its control method that can significantly reduce energy consumption and improve energy efficiency while ensuring cooling reliability.

[0059] Based on this, embodiments of this application propose an air conditioning system, an air conditioning system control method, equipment, medium, and product, which can be used in the field of fluorine pump refrigeration system technology, aiming to solve the above-mentioned technical problems of the prior art. Through flexible switching and intelligent control of multiple operating modes, while ensuring the cooling effect in places such as data centers, power rooms, and battery rooms, the system achieves effective reduction of energy consumption and significant improvement of energy efficiency ratio.

[0060] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0061] To better understand the solutions of the embodiments of this application, the structure of the air-cooled refrigerant pump air conditioning system and the water-cooled refrigerant pump air conditioning system will be introduced below.

[0062] Figure 1 This is a schematic diagram of a wind-cooled refrigerant pump air conditioning system provided in an embodiment of this application. Figure 1 As shown, the air-cooled refrigerant pump air conditioning system includes an outdoor fan 110, a condenser 120, a refrigerant pump 130, two one-way valves 140, an expansion valve 150, an indoor fan 160, and a compressor 170.

[0063] Figure 2 This is a schematic diagram of a water-cooled refrigerant pump air conditioning system provided in an embodiment of this application.Figure 2 As shown in the figure, the water-cooled fluorine pump air conditioning system includes a cooling tower 210, a cooling water pump 230, a water-fluorine heat exchanger 220, a refrigerant pump 130, two one-way valves 140, an expansion valve 150, an indoor side fan 160, and a compressor 170.

[0064] Figure 3 A structure diagram of an air conditioning system provided by the embodiment Figure 1 As shown in the figure, the air conditioning system includes an air conditioning part, a water-cooled part, and an air-cooled part. Figure 3 As shown in the figure, the air conditioning system includes an air conditioning part, a water-cooled part, and an air-cooled part.

[0065] The air conditioning part includes an air conditioning refrigerant main pipeline and an air conditioning terminal 310.

[0066] The water-cooled part includes a first heat exchanger 2201 connected to the liquid inlet end of the first refrigerant pump 1301, a cooling water pump 230 connected to the first heat exchanger 2201, a cooling tower 210 connected to the water inlet end of the cooling water pump 230, and a pipeline between the cooling water pump 230 and the first refrigerant pump 1301 for heat exchange through the first heat exchanger 2201.

[0067] The air-cooled part includes at least one first refrigerant pump 1301 connected to the air conditioning terminal 310, a first one-way valve 1401 connected in parallel to the first refrigerant pump 1301, a condenser 120 connected to the liquid inlet end of the first refrigerant pump 1301, an outdoor side fan 110 installed on the condenser 120, a compressor 170 connected to the air inlet end of the condenser 120, and a second one-way valve 1402 connected in parallel to the compressor 170.

[0068] Specifically, the first heat exchanger 2201 can be a water-fluorine heat exchanger. The outdoor cold source water-cooled part includes a cooling tower 210 and a cooling water pump 230. In a completely natural cooling mode, outdoor low-temperature water can exchange heat with the refrigerant side through the first heat exchanger 2201. The cooling tower 210 part includes multiple valves that can be used to adjust the water flow entering the cooling tower 210, ensuring that the air conditioning system can effectively operate under different load conditions.

[0069] The air conditioning terminal 310 is connected to the first refrigerant pump 1301 and the first one-way valve 1401 through a liquid pipe 320 of the air conditioning refrigerant main pipeline, and is also connected to the first heat exchanger 2201, the compressor 170, and the second one-way valve 1402 through a gas pipe 330 of the air conditioning refrigerant main pipeline.

[0070] The air conditioning system provided by the embodiment includes an air conditioning part, a water-cooled part, and an air-cooled part, and each part works cooperatively to achieve flexible switching and efficient operation in refrigeration mode.

[0071] The air conditioner part includes an air conditioner refrigerant main pipeline and an air conditioner terminal 310 for releasing cold energy to a target space to achieve environmental cooling.

[0072] The air-cooled part is configured with at least one first refrigerant pump 1301, which is in communication with the air conditioner terminal 310 through a pipeline, and is used to drive the circulation of refrigerant between the air conditioner terminal and the heat exchange system.

[0073] The first one-way valve 1401 is arranged in parallel with the first refrigerant pump 1301, and is used to allow the refrigerant to flow directly to the air conditioner terminal 310 when the first refrigerant pump 1301 does not need to work.

[0074] In addition, the parallel arrangement of the first one-way valve 1401 can form a redundant protection circuit.

[0075] The cooling water pump 230 is used to deliver cooling water to the first heat exchanger 2201 to cool the refrigerant input into the first refrigerant pump 1301 through the first heat exchanger 2201.

[0076] The cooling tower 210 is in communication with the water inlet end of the cooling water pump 230, and is used to dissipate heat from the cooling water.

[0077] The first heat exchanger 2201 is arranged on the pipeline between the cooling water pump 230 and the first refrigerant pump 1301, and the pipeline between the cooling water pump 230 and the first refrigerant pump 1301 exchanges heat through the first heat exchanger 2201.

[0078] Further, the air conditioning system can also include an intelligent control module, which integrates an array of temperature sensors to monitor the temperature difference of each node in real time, so as to dynamically adjust the refrigerant flow and the cooling water circulation rate.

[0079] The air-cooled part includes an outdoor fan 110 in communication with the liquid inlet end of the first refrigerant pump 1301.

[0080] The outdoor fan 110 is installed on the condenser 120, and is used to achieve condensation heat dissipation of the refrigerant through air convection.

[0081] The outdoor fan 110 can be configured with a variable frequency fan, and can be equipped with a micro-channel condenser 120, and the condenser 120 can adopt a corrugated fin structure to improve the heat exchange efficiency.

[0082] The compressor 170 is in communication with the gas inlet end of the condenser 120, and is used to compress the gaseous refrigerant.

[0083] The second one-way valve 1402 is arranged in parallel with the compressor 170, and can be used to allow the refrigerant to bypass and flow when the compressor 170 does not need to work, to ensure the continuous circulation ability of the air conditioning system in the air-cooled mode without the compressor 170 running, and to achieve natural cooling.

[0084] The compressor 170 can be a scroll compressor supporting variable frequency adjustment. The second one-way valve 1402 in parallel can achieve natural cooling.

[0085] Further, a pressure sensor and a humidity sensor can be integrated in the air conditioning system to automatically switch the working mode according to the outdoor environment parameters.

[0086] The air conditioning system provided by the embodiment of the present application has a parallel or switchable connection structure between the water cooling part and the air cooling part and the first refrigerant pump 1301, so that the air conditioning system can automatically or manually switch between the water cooling mode and the air cooling mode and the mixed mode according to the environmental conditions or operation requirements, thereby improving the energy efficiency ratio and adaptability of the air conditioning system; through the cooperative operation of the double cooling sources, the refrigeration effect is ensured, the energy consumption of the air conditioning system is significantly reduced, the air conditioning energy efficiency ratio is improved, and the overall performance of the air conditioning system is effectively improved; the key components are designed in redundancy, so that a single point failure does not affect the overall operation of the air conditioning system.

[0087] Figure 4 The structure of the air conditioning system provided by the embodiment of the present application is shown in the figure Figure 2 As shown in the figure Figure 4 , the water cooling part includes a first heat exchanger 2201 in communication with the liquid inlet end of the first refrigerant pump 1301, a cooling water pump 230 in communication with the first heat exchanger 2201, and a cooling tower 210 in communication with the water inlet end of the cooling water pump 230. The pipeline between the cooling water pump 230 and the first refrigerant pump 1301 exchanges heat through the first heat exchanger 2201.

[0088] The air cooling part further includes at least one first refrigerant pump 1301 in communication with the air conditioning terminal 310, a second refrigerant pump 1302 in communication with the first refrigerant pump 1301, a third one-way valve 1403 in parallel with the second refrigerant pump 1302, and a second heat exchanger 2202.

[0089] Specifically, compared with the air conditioning system in Figure 3 , the air conditioning system in Figure 4 of the present embodiment is more suitable for the application scenario where the air conditioning terminal 310 is far away from the cooling source and has a relatively abundant installation space.

[0090] For the water cooling part, the first heat exchanger 2201 is used for heat exchange between the high-temperature refrigerant from the first refrigerant pump 1301 and the cooling water, so as to transfer heat to the cooling water.

[0091] The cooling tower 210 can dissipate heat in the cooling water to the atmosphere through contact with the outside air to achieve cooling of the cooling water.

[0092] The cooled water is returned to the first heat exchanger 2201 to complete the water cooling cycle.

[0093] For the air-cooled part, the first refrigerant pump 1301 can drive the refrigerant to circulate in the air conditioning terminal 310 to realize the absorption of indoor heat.

[0094] The second refrigerant pump 1302 is connected in series with the first refrigerant pump 1301, which can be used to enhance the circulation power of the refrigerant, so that the entire air conditioning system is more suitable for the application scenario where the air conditioning terminal 310 is far away from the cold source.

[0095] The third one-way valve 1403 is connected in parallel with the second refrigerant pump 1302, which can ensure the one-way flow of the refrigerant in the system in the completely natural cooling or partially natural cooling mode of the air-cooled fluorine pump system, prevent backflow, and ensure the stable operation of the air conditioning system.

[0096] The second heat exchanger 2202 can be used for direct air heat dissipation in the air-cooled mode, and can be used as an auxiliary heat exchange device to directly discharge the heat of the refrigerant to the air in the air-cooled mode.

[0097] The air conditioning system provided by the embodiment of the present application combines the efficient heat dissipation of water cooling and the flexible deployment of air cooling, and is suitable for the application scenario where the air conditioning terminal 310 is far away from the cold source and has relatively abundant installation space. By connecting the second refrigerant pump 1302 in series with the first refrigerant pump 1301, the circulation power of the refrigerant is enhanced, so that the entire air conditioning system is more suitable for the application scenario where the air conditioning terminal 310 is far away from the cold source. By configuring multiple pumps and heat exchangers, the reliability and adjustability of the air conditioning system are improved, and the water cooling and air cooling modes can be intelligently switched or combined according to the environmental temperature and load demand, so as to optimize the energy consumption.

[0098] Figure 5 The structure of the air conditioning system provided by the embodiment of the present application is shown in Figure 3 . As shown in Figure 5 , the second heat exchanger 2202 and the first heat exchanger 2201 form a mixed heat exchanger 2203 integrated in the air conditioning system.

[0099] Specifically, compared with the air conditioning system in Figure 3 and Figure 4 , the air conditioning system in Figure 5 provided by the embodiment is suitable for the application scenario where the air conditioning terminal 310 is far away from the cold source and has relatively tight installation space. By forming the mixed heat exchanger 2203 from the second heat exchanger 2202 and the first heat exchanger 2201, the installation space can be saved, and the integration degree of the air conditioning system can be improved.

[0100] In addition, Figure 5The air conditioning system shown in the embodiment has a large resistance due to the mixed heat exchanger 220, and thus the lift of the second refrigerant pump 1302 can be greater than Figure 4 the lift of the second refrigerant pump 1302.

[0101] Optionally, the quantity ratio between the cooling water pump 230 and the first heat exchanger 2201 can be N:(N+1), where N is the number of the cooling water pump 230, N+1 is the number of the first heat exchanger 2201, and N is an integer greater than or equal to 1. Through such a redundant design, the safety and stability of the air conditioning system are ensured.

[0102] Further, the cooling water pump 230, the first refrigerant pump 1301, and the compressor 170 can all be frequency conversion, which can reduce energy consumption and facilitate more accurate control of the flow and pressure in the pipeline.

[0103] Further, the cooling tower 210, the cooling water pump 230, and the first heat exchanger can adopt an outdoor container form and be installed on the roof to save installation space.

[0104] Further, the second refrigerant pump 1302 can also be frequency conversion, and the first refrigerant pump 1301 and the second refrigerant pump 1302 can also adopt a redundant design to ensure the safety and stability of the air conditioning system.

[0105] Further, the air conditioning system can also include a dehumidification terminal, and the air conditioning terminal 310 and the dehumidification terminal can both include an expansion valve 150. The air conditioning terminal can adopt various forms such as a room-level air conditioner, an aisle-level air conditioner, a wind wall air conditioner, a backboard air conditioner, and a backboard wind wall air conditioner.

[0106] The dehumidification terminal can adopt refrigeration dehumidification, and the dehumidification device does not need to be provided with a compressor 170 and a condenser 120, but only needs to be provided with an expansion valve 150 and an air conditioning terminal 310 that share a set of cold source in a multi-connected manner. Through such a connection manner, the size of the dehumidification device can be reduced, and the dehumidification device can be included in the air conditioning part for centralized monitoring through a controller.

[0107] Figure 6 A flowchart of an air conditioning system control method provided by the embodiment Figure 1 . The method is applied to a controller, and the controller is in data connection with the air conditioning system in the above embodiment, as shown in Figure 6 , the method comprises the following steps.

[0108] S601, acquiring indoor sensor data, outdoor sensor data, and load power curve of a service area of an air conditioning system.

[0109] In the embodiments of the present application, the air conditioning system can mainly use the energy-saving optimization mode to reduce energy consumption and improve energy efficiency ratio. Through the algorithm built in the controller, the air conditioning system is ensured to always run in the mode with the minimum Power Usage Effectiveness (PUE) of the data center energy efficiency evaluation index.

[0110] Specifically, the service area of the air conditioning system can be an indoor space such as a data room, a power room, and a battery room. The air conditioning system can be provided with a dry-bulb temperature sensor and a wet-bulb temperature sensor on the outdoor side, and the air outlet and the air return of the air conditioning terminal 310 can be provided with a temperature sensor, a humidity sensor, and an enthalpy sensor.

[0111] The indoor sensor data can include parameters such as supply air temperature, return air temperature, relative humidity, supply air enthalpy, and return air enthalpy.

[0112] The outdoor sensor data can include parameters such as outdoor dry-bulb temperature and wet-bulb temperature.

[0113] The load power curve can include the power curves of the water-cooled part cooling tower 210, the cooling water pump 230, the first refrigerant pump 1301, the outdoor side fan 110 of the air-cooled part, the compressor 170, and the second refrigerant pump 1302 under different loads.

[0114] S602, determining the total refrigeration capacity required by the system according to the indoor sensor data and the circulating air volume parameter of the air conditioning terminal.

[0115] S603, determining the power consumption of the water-cooled operation mode and the power consumption of the air-cooled operation mode under the current load according to the total refrigeration capacity required by the system, the outdoor sensor data, and the load power curve.

[0116] Specifically, the controller can calculate the total refrigeration capacity required by the system by using the supply air enthalpy, the return air enthalpy, and the current air density, and the circulating air volume parameter of the air conditioning terminal.

[0117] Further, the power consumption of the water-cooled operation mode and the power consumption of the air-cooled operation mode under the current load are calculated according to the total refrigeration capacity required by the system, the outdoor sensor data, and the load power curve.

[0118] Specifically, Figure 7 An air conditioning system operation mode provided by the embodiments of the present application Figure 1 . Figure 7 Corresponding to Figure 3 and Figure 4 the schematic diagram of the air conditioning system in the water-cooled operation mode.

[0119] Figure 8 An air conditioning system operation mode provided by the embodiments of the present application Figure 2 . Figure 8Corresponding to Figure 5 A schematic diagram of the air conditioning system in the water-cooled operation mode is shown.

[0120] Figure 9 A schematic diagram of the air conditioning system in the water-cooled operation mode is shown. Figure 3 . Figure 9 Corresponding to Figure 3 A schematic diagram of the air conditioning system in the air-cooled operation mode is shown.

[0121] Figure 10 A schematic diagram of the air conditioning system in the air-cooled operation mode is shown. Figure 4 . Figure 10 Corresponding to Figure 4 A schematic diagram of the air conditioning system in the air-cooled operation mode is shown.

[0122] Figure 11 A schematic diagram of the air conditioning system in the air-cooled operation mode is shown. Figure 5 . Figure 11 Corresponding to Figure 5 A schematic diagram of the air conditioning system in the air-cooled operation mode is shown.

[0123] S604, when it is detected that the water-cooled operation mode power consumption is greater than the air-cooled operation mode power consumption, the air conditioning system is controlled in the air-cooled operation mode, otherwise the air conditioning system is controlled in the water-cooled operation mode.

[0124] Specifically, the controller can determine the form of the cooling source that can make the PUE lowest through the load condition of the air conditioning terminal 310, the outdoor dry-bulb temperature and the outdoor wet-bulb temperature, and other parameters, so as to control the operation mode of the air conditioning system.

[0125] Specifically, when the controller detects that the power consumption of the air conditioning system in the water-cooled operation mode is greater than that in the air-cooled operation mode, the air conditioning system is controlled in the air-cooled operation mode, otherwise the air conditioning system is controlled in the water-cooled operation mode, so as to reduce the energy consumption of the air conditioning system, improve the energy efficiency ratio of the air conditioning system, and effectively improve the overall performance of the air conditioning system.

[0126] The air conditioning system control method provided in the embodiment first acquires indoor sensor data, outdoor sensor data and a load power curve of a service area of an air conditioning system; then determines the total refrigeration capacity required by the system according to the indoor sensor data and the circulating air volume parameter of the air conditioning terminal; then determines the water-cooled operation mode power consumption and the air-cooled operation mode power consumption under the current load according to the total refrigeration capacity required by the system, the outdoor sensor data and the load power curve; finally, when it is detected that the water-cooled operation mode power consumption is greater than the air-cooled operation mode power consumption, the air conditioning system is controlled in the air-cooled operation mode, otherwise the air conditioning system is controlled in the water-cooled operation mode.

[0127] The following technical effects are achieved: judging the form of the cold source of the air conditioning system that can make the PUE lowest through the load condition of the air conditioning terminal 310 and the outdoor dry bulb temperature and wet bulb temperature and other parameters, thereby controlling the operation mode of the air conditioning system, reducing the energy consumption of the air conditioning system, improving the air conditioning energy efficiency ratio, and effectively improving the overall performance of the air conditioning system.

[0128] The controller can set the air conditioning supply air temperature in each room according to the room function, and when the load in the room changes, the opening degree of the expansion valve of the air conditioning terminal 310 and the rotation speed of the indoor side fan can be adjusted according to the set air conditioning supply air temperature in each room.

[0129] Further, the indoor sensor data can include air density, supply air enthalpy and return air enthalpy; and the total refrigerating capacity required by the system is determined according to the indoor sensor data and the circulating air volume parameter of the air conditioning terminal, which includes: determining the total refrigerating capacity required by the system according to the circulating air volume parameter of the air conditioning terminal, the air density, the supply air enthalpy and the return air enthalpy.

[0130] The calculation formula of the total refrigerating capacity required by the system is as follows:

[0131]

[0132] Wherein, the total refrigerating capacity required by the system, the air density, V is the circulating air volume parameter of the air conditioning terminal, the supply air enthalpy, the return air enthalpy.

[0133] Further, after determining the total refrigerating capacity required by the system according to the indoor sensor data and the circulating air volume parameter of the air conditioning terminal, the method further includes: obtaining the cooling tower surplus refrigerating capacity; when it is detected that the cooling tower surplus refrigerating capacity is greater than or equal to the total refrigerating capacity required by the system, the air conditioning system is controlled in the water cooling operation mode; or when it is detected that the cooling tower surplus refrigerating capacity is less than the total refrigerating capacity required by the system, the air conditioning system is controlled in the mixed operation mode; or when it is detected that the cooling tower surplus refrigerating capacity meets the no surplus refrigerating capacity condition, the air conditioning system is controlled in the air cooling operation mode.

[0134] Specifically, the air conditioning system in the embodiment of the application has a water cooling operation mode, an air cooling operation mode and a water cooling plus air cooling mixed operation mode, and the air cooling operation mode can be divided into a compressor operation mode, a refrigerant pump operation mode and a refrigerant pump and compressor combined operation mode. The air conditioning system can be automatically controlled to operate according to the outdoor wet bulb temperature and dry bulb temperature. In addition, the water cooling source and the air cooling source can back up each other to improve the stability of the air conditioning system.

[0135] The air conditioning system in the embodiments of the present application can be set to two control forms of water-cooling operation mode as the main mode and energy-saving optimization.

[0136] Specifically, when the air conditioning system in the embodiments of the present application mainly operates in the water-cooling mode, if the air conditioning system in the embodiments of the present application shares the cooling tower 210 with the water-cooling centralized air conditioning system of the data center, when it is detected that the cooling tower has a surplus refrigerating capacity greater than or equal to the total refrigerating capacity required by the system, the controller controls the air conditioning system in the embodiments of the present application in the water-cooling operation mode.

[0137] When the cooling tower of the water-cooling centralized air conditioning system of the data center has a surplus refrigerating capacity that is difficult to meet the total refrigerating capacity required by the system as the cooling load of the water-cooling centralized air conditioning system of the data center increases, the controller can control the air conditioning system in the embodiments of the present application in the water-cooling and air-cooling hybrid operation mode.

[0138] If the cooling tower of the water-cooling centralized air conditioning system has no surplus refrigerating capacity, that is, the cooling tower has a surplus refrigerating capacity of 0 or a very small value, such as 5 kW, the controller can control the air conditioning system in the embodiments of the present application in the air-cooling operation mode.

[0139] Further, the method further includes: obtaining water-cooling part operation data; when it is detected that the water supplement of the system does not meet the refrigerating capacity requirement, switching to the air-cooling operation mode to control the air conditioning system, and when it is detected that the outdoor sensor data is in a first temperature interval, controlling the air conditioning system in a preset refrigerant pump operation mode, or when it is detected that the outdoor sensor data is in a second temperature interval, controlling the air conditioning system in a preset parallel operation mode, or when it is detected that the outdoor sensor data is in a third temperature interval, controlling the air conditioning system in a preset compressor operation mode.

[0140] Specifically, the water-cooling part operation data refers to the water supplement data of the air conditioning system and the fault signal of the water-cooling part.

[0141] When the water supplement of the air conditioning system in the embodiments of the present application is insufficient or the water-cooling part fails, the controller can automatically switch to the air-cooling operation mode.

[0142] The outdoor sensor data can be the outdoor dry-bulb temperature. The first temperature interval can be outdoor dry-bulb temperature≤T1, the second temperature interval can be T1<outdoor dry-bulb temperature≤T2, and the third temperature interval can be outdoor dry-bulb temperature>T2.

[0143] Wherein, T1<T2, T1 is a first preset temperature, which can be 10 degrees Celsius, and T2 is a second preset temperature, which can be 20 degrees Celsius. The specific values of T1 and T2 are not limited here.

[0144] That is, when the air conditioning system is in the air-cooled operation mode, when the outdoor dry-bulb temperature is less than or equal to T1, the outdoor temperature is low enough, and the compressor 170 does not need to be started, the controller can adopt the refrigerant pump operation mode; when T1 < outdoor dry-bulb temperature < T2, the outdoor temperature rises, the controller can adopt the refrigerant pump and compressor parallel operation mode, and the refrigeration effect is ensured by partial natural cooling and partial mechanical refrigeration; when the outdoor dry-bulb temperature is greater than T2, the outdoor temperature is too high, and the compressor operation mode is adopted, and all the cooling load is borne by the compressor 170, and the conventional refrigeration state is entered.

[0145] The air conditioning system control method provided in the embodiment can automatically select a cold source to operate the air conditioning system according to the outdoor dry-bulb temperature and the outdoor wet-bulb temperature, and match the most energy-saving operation mode through the internal algorithm of the controller, so that the energy-saving purpose is achieved.

[0146] Figure 12 The structure schematic diagram of the electronic device provided in the embodiment is shown in FIG. 1. Figure 12 As shown in the figure, the electronic device includes at least one processor 1210 and a memory 1220. The electronic device also includes a communication component 1230. The processor 1210, the memory 1220, and the communication component 1230 are connected through a bus 1240.

[0147] In the specific implementation process, the at least one processor 1210 executes the computer execution instructions stored in the memory 1220, so that the at least one processor 1210 executes the air conditioning system control method as executed by the electronic device side.

[0148] The specific implementation process of the processor 1210 can refer to the method embodiments described above, which has similar implementation principles and technical effects, and will not be described here.

[0149] In the above embodiments, it should be understood that the processor can be a central processing unit (CPU), and can also be other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), etc. The general-purpose processor can be a microprocessor or any conventional processor, etc. The steps of the disclosed method can be directly embodied as execution completed by a hardware processor, or executed by a combination of hardware and software modules in the processor.

[0150] The memory can include a high-speed RAM memory, and can also include a non-volatile storage NVM, such as at least one disk memory.

[0151] The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, the bus in the drawings of the present application does not limit to only one bus or one type of bus.

[0152] The functions implemented by the electronic device and the master device described above are introduced for the scheme provided by the embodiments of the present application. It can be understood that the electronic device or the master device includes the hardware structure and / or software module corresponding to the execution of each function in order to implement the above functions. In combination with the units and algorithm steps of each example described in the embodiments disclosed in the embodiments of the present application, the embodiments of the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is implemented in hardware or computer software driven hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the technical solutions of the embodiments of the present application.

[0153] The present application also provides a computer readable storage medium, the computer readable storage medium stores computer execution instructions, when the processor executes the computer execution instructions, the computer execution instructions are used to implement the above-mentioned air conditioning system control method.

[0154] The above-mentioned readable storage medium can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk. The readable storage medium can be any available medium that can be accessed by a general-purpose or special-purpose computer.

[0155] An example readable storage medium is coupled to the processor such that the processor can read information from the readable storage medium and write information to the readable storage medium. Of course, the readable storage medium can also be a part of the processor. The processor and the readable storage medium can be located in an application specific integrated circuit (ASIC). Of course, the processor and the readable storage medium can also exist as discrete components in an electronic device or a host device.

[0156] The application further provides a computer program product, the computer program product comprising a computer program stored in a readable storage medium, at least one processor of an electronic device can read the computer program from the readable storage medium, and the at least one processor executes the computer program to enable the electronic device to perform the scheme provided in the above embodiments.

[0157] Those skilled in the art can understand that all or part of the steps of the above-mentioned method embodiments can be completed by program instruction related hardware. The foregoing program can be stored in a computer readable storage medium. When the program is executed, the steps of the method embodiments are executed; and the foregoing storage medium includes: ROM, RAM, magnetic disk or optical disk and various storage media that can store program codes.

[0158] So far, the technical scheme of the application has been described in combination with the preferred embodiments shown in the drawings, but those skilled in the art can easily understand that the protection scope of the application is obviously not limited to these specific embodiments, and the above embodiments are only used to illustrate the technical scheme of the application, but not to limit it; although the application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical scheme recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical scheme deviate from the scope of the technical scheme of the embodiments of the application.

Claims

1. An air conditioning system, characterized by, include: Air conditioning section, water cooling section, and air cooling section; The air conditioning section includes the main air conditioning refrigerant pipeline and the air conditioning terminal. The water-cooled section includes a first heat exchanger connected to the liquid inlet of the first refrigerant pump, a cooling water pump connected to the first heat exchanger, and a cooling tower connected to the water inlet of the cooling water pump. The pipeline between the cooling water pump and the first refrigerant pump exchanges heat through the first heat exchanger. The air-cooled section includes at least one first refrigerant pump connected to the air conditioning terminal, a first check valve connected in parallel with the first refrigerant pump, a condenser connected to the liquid inlet of the first refrigerant pump, an outdoor fan installed on the condenser, a compressor connected to the air inlet of the condenser, and a second check valve connected in parallel with the compressor.

2. The air conditioning system of claim 1, wherein, The water-cooled section includes a first heat exchanger connected to the liquid inlet of the first refrigerant pump, a cooling water pump connected to the first heat exchanger, and a cooling tower connected to the water inlet of the cooling water pump. The pipeline between the cooling water pump and the first refrigerant pump exchanges heat through the first heat exchanger. The air-cooled section also includes a second refrigerant pump connected to the first refrigerant pump, a third check valve connected in parallel with the second refrigerant pump, and a second heat exchanger.

3. The air conditioning system of claim 2, wherein, The second heat exchanger and the first heat exchanger together form a hybrid heat exchanger integrated into the air conditioning system.

4. The air conditioning system according to any one of claims 2 or 3, characterized in that, The cooling water pump, the first refrigerant pump, the second refrigerant pump, and the compressor all use variable frequency drives.

5. An air conditioning system control method characterized by, For controlling the air conditioning system as described in claim 1, the method is applied to a controller, the controller being data-connected to the air conditioning system, the method comprising: Acquire indoor sensor data, outdoor sensor data, and load power curves for the service area of ​​the air conditioning system; Based on the indoor sensor data and the circulating air volume parameters of the air conditioning terminal, determine the total cooling capacity required by the system; Based on the total cooling capacity required by the system, outdoor sensor data, and load power curve, determine the power consumption of the water-cooled operation mode and the power consumption of the air-cooled operation mode under the current load. If the power consumption of the water-cooled operation mode is detected to be greater than that of the air-cooled operation mode, the air-cooled operation mode is used to control the air conditioning system; otherwise, the water-cooled operation mode is used to control the air conditioning system.

6. The method of claim 5, wherein, The indoor sensor data includes air density, supply air enthalpy, and return air enthalpy; The step of determining the total cooling capacity required by the system based on the indoor sensor data and the circulating air volume parameters of the air conditioning terminal includes: The total cooling capacity required by the system is determined based on the circulating air volume parameters of the air conditioning terminal, the air density, the supply air enthalpy, and the return air enthalpy.

7. The method of claim 5, wherein, After determining the total cooling capacity required by the system based on the indoor sensor data and the circulating air volume parameters of the air conditioning terminal, the method further includes: Obtain the excess cooling capacity of the cooling tower; When the excess cooling capacity of the cooling tower is detected to be greater than or equal to the total cooling capacity required by the system, the air conditioning system is controlled in water-cooled operation mode; or When the excess cooling capacity of the cooling tower is detected to be less than the total cooling capacity required by the system, the air conditioning system is controlled in a hybrid operation mode; or When the excess cooling capacity of the cooling tower is detected to meet the condition of no excess cooling capacity, the air-cooled operation mode is used to control the air conditioning system.

8. The method of claim 6, wherein, Also includes: Obtain operational data for the water cooling system; When the system water replenishment is detected to be insufficient to meet the cooling capacity requirement, the system switches to air-cooled operation mode to control the air conditioning system. When the outdoor sensor data is detected in the first temperature range, the system uses a preset refrigerant pump operation mode to control the air conditioning system. When the outdoor sensor data is detected in the second temperature range, the system uses a preset parallel operation mode to control the air conditioning system. When the outdoor sensor data is detected in the third temperature range, the system uses a preset compressor operation mode to control the air conditioning system.

9. An electronic device, comprising: include: Memory, processor; The memory stores computer-executed instructions; The processor executes computer execution instructions stored in the memory, causing the processor to perform the method as described in any one of claims 5 to 8.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions, which, when executed by a processor, are used to implement the method as described in any one of claims 5 to 8.

11. A computer program product, characterized in that, Includes a computer program that, when executed by a processor, implements the method as described in any one of claims 5 to 8.

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