Design method of energy-saving integrated water chilling unit

Abstract

The invention discloses a design method of an energy-saving integrated water chilling unit. Modularized design is adopted, a compression module, a condensation module, an expansion module, an evaporation module and a control module are included, and all the modules can be flexibly combined; an intelligent control system is arranged, a sensor is used for collecting data, the operation mode is automatically adjusted through an intelligent algorithm, and remote monitoring is supported. And high-efficiency refrigeration technologies, such as a variable-frequency compressor, an optimized heat exchanger and a condensation mode, selection of a low-GWP refrigerant and the like, are applied. The waste heat recovery and utilization device is arranged, environment-friendly refrigerants and energy-saving materials are adopted, fine management is achieved through an energy-saving optimization algorithm and data analysis, and meanwhile the structure is compact and the automation degree is high. The unit is efficient, energy-saving, environment-friendly, intelligent and convenient, is suitable for multiple fields, and effectively improves the comprehensive performance and the use experience.

Description

Technical Field

[0001] The invention relates to the technical field of refrigeration and air conditioning, and in particular to a design method for an energy-saving integrated chiller. Background Art

[0002] In many fields of industrial production, commercial office and civil construction today, chillers, as a key temperature regulation equipment, play an indispensable role. Most traditional chillers are based on relatively fixed design architectures and technical principles, and have gradually exposed many problems that need to be solved in long-term practical applications. For example, the core compressor part mostly uses a fixed-speed compressor, which consumes a lot of electricity at the moment of startup to overcome inertia and establish the pressure required for the refrigeration cycle, resulting in significant startup energy waste. Moreover, in the face of constantly changing heat load requirements during actual use, fixed-speed compressors cannot flexibly adjust the cooling capacity according to load changes, and can only cope with it through frequent starts and stops, which not only further aggravates energy loss, but also has an adverse effect on the service life of the compressor itself.

[0003] From the perspective of energy saving, in addition to the energy consumption problem caused by the compressor, the design of the heat exchanger of the traditional chiller is also insufficient. It usually adopts ordinary heat exchange structure and materials, and the heat exchange efficiency is limited, which makes the heat exchange between the refrigerant and the cooling medium insufficient, resulting in more energy consumption to achieve the set refrigeration temperature. In the condensation process, there is a lack of flexible and effective condensation mode switching mechanism, and the condensation process cannot be optimized according to the actual load level, and efficient heat dissipation cannot be achieved. At the same time, in terms of environmental protection, the refrigerants used in many traditional chillers have a high global warming potential (GWP), and will emit a large amount of greenhouse gases into the atmosphere during use, which has a negative impact on the global climate environment. In addition, at the level of intelligent control, traditional units can often only achieve simple local control, and it is difficult to achieve real-time remote monitoring of the unit's operating status, and it is even more impossible to automatically optimize and adjust the operating mode based on complex environmental factors and operating data, which greatly limits its management convenience and operating efficiency.

[0004] With the increasing attention paid to energy conservation, environmental protection and the application of intelligent equipment around the world, the market's performance requirements for chillers are also constantly increasing. These existing technical limitations urgently need a new and comprehensive solution to break through, so as to achieve improvements in chillers in terms of high efficiency, energy saving, environmental friendliness and intelligent control. It is based on this background that the present invention aims to develop an energy-saving integrated chiller, which overcomes many defects of traditional chillers through innovative design concepts and advanced technology applications, meets the higher performance expectations of users in different fields for temperature control equipment, and provides strong support for the sustainable development of related industries. Summary of the invention

[0005] The energy-saving integrated chiller of the present invention achieves multiple advantages of high efficiency and energy saving, environmental friendliness, intelligence and convenience through innovative modular design, intelligent control system, high-efficiency refrigeration technology, waste heat recovery and utilization mechanism, application of environmentally friendly refrigerants and energy-saving materials, and advanced energy-saving optimization algorithms and data analysis functions, combined with compact structure and automated design. It aims to meet diverse refrigeration and heating needs and is widely used in industrial production, commercial offices, civil buildings and other fields.

[0006] Specific technical solutions

[0007] Modular design of chillers

[0008] Modular components: The chiller is divided into five main functional modules, namely compression module, condensation module, expansion module, evaporation module and control module. Each module adopts standardized design, unified interface specifications and dimensions, and can be flexibly combined according to actual needs, such as cooling capacity, site space, application scenario characteristics, etc., so as to customize the chiller configuration to meet the requirements of different users.

[0009] Compression module: A variable frequency compressor is used, and a high-precision sensor is built in to monitor the load changes of the unit in real time. With its ability to automatically adjust the speed according to the load, the speed is reduced at low loads to avoid the waste of startup energy caused by the frequent start and stop of traditional fixed-speed compressors. In addition, a quick disassembly design is adopted between the compressor and the condenser. Through the special joint and buckle structure, maintenance personnel can quickly and conveniently maintain and replace the compressor when necessary, reducing maintenance time and difficulty.

[0010] Condensation module: High-efficiency plate heat exchangers or spiral heat exchangers are preferred. Their special plate or spiral channel structure significantly increases the heat exchange area, making the heat exchange between the refrigerant and the cooling medium more sufficient. At the same time, the coating optimization technology is used internally. The low roughness and excellent anti-scaling performance of the coating not only reduce fluid resistance and ensure the smooth passage of the cooling medium, but also inhibit scale deposition, maintain high heat exchange efficiency for a long time, and reduce maintenance costs.

[0011] Expansion module: Automatic adjustment method combining electronic expansion valve and temperature sensor. Temperature sensors are distributed in key parts of the system to monitor temperature data in real time. Combined with system pressure information, the control system accurately calculates the optimal flow rate of refrigerant through algorithms based on these data, drives the electronic expansion valve to adjust the opening accordingly, ensures that the refrigerant is in the best performance state throughout the cooling cycle, and optimizes the cooling effect and energy efficiency.

[0012] Evaporation module: Equipped with a multi-channel high-efficiency evaporator, the multiple independent and interconnected water flow channels and refrigerant channels designed inside it construct a complex and efficient heat exchange path to improve the heat exchange efficiency. In addition, the evaporator can dynamically adjust the water flow rate through the electric regulating valve according to the load demand monitored in real time, ensuring sufficient heat exchange during the evaporation process under different loads and maintaining stable refrigeration performance.

[0013] Control module: Integrates advanced Internet of Things control systems, installs multiple sensors at key locations of each module, such as temperature sensors, pressure sensors, flow sensors, etc., to collect operation data in all directions. Data is transmitted to the control system via wired or wireless networks. The control system uses intelligent optimization algorithms, combined with factors such as ambient temperature, water demand, and historical operation data, to analyze and automatically adjust the working modes of each part of the unit in real time. It also supports users to remotely monitor the unit's operating status and adjust key parameters through smartphones, computers, and other terminals, and has comprehensive fault diagnosis and early warning functions.

[0014] Intelligent control system

[0015] Sensor installation: Various sensors are accurately installed at key locations such as the compressor inlet and outlet of the chiller, the condenser heat exchange tube bundle, the front and rear ends of the expansion valve, and the internal channels of the evaporator to ensure comprehensive and accurate acquisition of key parameter information such as temperature, pressure, and flow during unit operation.

[0016] Data collection and transmission: After the data collected by the sensor is encoded according to the predetermined communication protocol, the appropriate transmission method is selected according to the actual situation. Wired transmission is used for short distances to ensure data anti-interference and accuracy, and wireless network transmission is used for long distances or when wiring is inconvenient. The data receiving module of the control system is responsible for receiving and analyzing data in real time and converting it into digital signals for analysis and processing.

[0017] Intelligent optimization algorithm: The intelligent optimization algorithm built into the control system takes into full account various factors, and adjusts the unit operation mode in real time through adaptive logic judgment and mathematical calculation based on the ambient temperature data of the external weather station, the water demand feedback from the water system, and the historical operation data in the past. For example, it automatically reduces the compressor speed at low load, fine-tunes the relevant parameters of each module to reduce energy consumption, and increases the condensation and evaporation efficiency at high load to ensure the cooling effect, achieving a balance between energy saving and performance.

[0018] Remote monitoring and control: With the help of the Internet of Things platform, users can remotely monitor the real-time operating status of the chiller through a variety of terminal devices. The interface displays various parameters in an intuitive form, and can also remotely adjust parameters such as cooling target temperature, compressor operating frequency, etc. Once a fault occurs, the system immediately notifies relevant personnel through SMS, push messages, etc., and presents detailed fault information and possible causes, facilitating timely maintenance and reducing downtime and losses.

[0019] Efficient refrigeration technology

[0020] Application of variable frequency technology: The variable frequency compressor abandons the fixed speed mode of the traditional fixed speed compressor, and relies on the built-in variable frequency drive device to flexibly adjust the speed according to the cooling demand. It starts slowly at a lower speed during startup, reduces the starting current, reduces the impact on the power grid and the waste of startup energy. During operation, the cooling capacity is accurately matched with the load changes, the cooling effect is optimized, the service life of the unit is extended, and the energy utilization efficiency of the entire refrigeration cycle is improved.

[0021] High-efficiency heat exchanger design: The heat exchanger uses special alloy materials or high-performance composite materials with high thermal conductivity, good corrosion resistance and thermal stability as heat exchange materials. Its inner and outer surfaces adopt innovative designs such as microchannels and fin extensions. The inner surface microchannels increase the contact area between the refrigerant and the wall to promote heat exchange. The outer surface fin structure expands the contact area with the external medium, optimizes the flow field distribution, and reduces fluid resistance, ensuring that the cooling medium quickly takes away the heat, so that the heat exchanger refrigeration efficiency reaches the best level and achieves energy saving and consumption reduction.

[0022] Condensation technology optimization: Adopt air and water-cooled mixed condensation system, enable air condensation mode during normal low-load operation, use high-efficiency fans outside the condenser to force air to flow through the heat exchange tube bundle to remove heat, without additional water consumption, reducing operating costs. Under high load, the water cooling system automatically intervenes, and the circulating water pump delivers cooling water to the internal channel of the condenser, using the high specific heat capacity of water to efficiently absorb heat and achieve condensation. At the same time, the built-in fan and water flow regulation system of the condenser automatically adjusts the fan speed and water flow rate according to the real-time monitored condensation parameters to ensure the best condensation effect under different loads.

[0023] Refrigerant selection: Choose low GWP refrigerants, such as carbon dioxide (CO2) or ammonia (NH3), to replace traditional high GWP refrigerants. Carbon dioxide refrigerant has the advantages of being non-toxic, odorless, non-flammable, and chemically stable. It does not damage the ozone layer, has a low global warming potential, and can efficiently transfer heat when operating in a supercritical state. Although ammonia refrigerant has a pungent odor, it has excellent refrigeration performance and heat transfer efficiency, and is widely used in industrial refrigeration and other fields. At the same time, strict safety protection measures are equipped according to the characteristics of ammonia to ensure safe use, reduce the impact of the greenhouse effect on the environment as a whole, and achieve environmental protection and energy saving.

[0024] Waste heat recovery and utilization

[0025] Waste heat recovery device: During the refrigeration process of the chiller, special heat exchangers are installed at key waste heat discharge locations such as the compressor exhaust end and the high-temperature side of the condenser. They are made of high thermal conductivity metal materials (such as copper alloy or stainless steel) and have a complex flow channel structure designed inside. Water or other suitable heat transfer fluids are used as recovery media. Through heat exchange, waste heat is transferred to the recovery medium to heat it up to form hot water or hot fluid, which is then transported to the office building hot water system, industrial heating links and other places where heat energy is needed with the help of a circulating pump, thereby realizing the secondary utilization of waste heat, improving the comprehensive utilization efficiency of energy, and achieving the goal of energy conservation and emission reduction.

[0026] Heat pump combined design: When refrigeration is not needed, the heat pump device is used to convert the condensation heat of the chiller. The heat pump device consists of a compressor, an evaporator, a condenser and a throttling device to form a thermal cycle system. It uses waste heat as a low-temperature heat source and consumes a certain amount of electricity to increase the waste heat from a low temperature to a high temperature, converting it into usable high-quality thermal energy for heating buildings or supplying hot water, further tapping the value of waste heat, improving the energy utilization efficiency of the overall system, and achieving a win-win situation in economic and environmental benefits.

[0027] Environmentally friendly refrigerants and energy-saving materials

[0028] Environmentally friendly refrigerant use: The chiller uses low GWP refrigerants such as carbon dioxide or ammonia as refrigerants. These refrigerants significantly reduce the impact of the greenhouse effect on the environment while ensuring good cooling effects. As for the pungent smell and toxicity of ammonia, advanced leak detection and alarm devices, complete ventilation systems and other safety protection measures are used to ensure safety during use.

[0029] High-efficiency thermal insulation materials: High-performance thermal insulation materials are used on the outside of the unit for thermal insulation treatment, such as polyurethane foam materials, which form a uniform and fine closed-cell structure through a foaming process, have excellent thermal insulation performance, low density, good formability and relatively low cost, and can effectively prevent heat conduction and convection, and reduce the heat exchange between the unit and the external environment. At the same time, the vacuum insulation board uses the internal vacuum environment to reduce the heat conduction medium, and cooperates with the high-reflectivity metal foil layer to achieve excellent thermal insulation effect at a small thickness, which is suitable for installation scenarios with limited space. The combined use of the two reduces heat loss and improves the energy utilization efficiency of the unit during operation.

[0030] Energy-saving optimization algorithm and data analysis

[0031] Big data analysis: Relying on a powerful data storage and analysis system, we collect and analyze historical operating data covering all seasons and different time periods, including ambient temperature, humidity, unit load, operating parameters of each module, energy consumption, etc. We use big data analysis technology to identify typical operating modes under different seasons and working conditions, combine real-time ambient temperature and load demand, predict unit operating trends, automatically adjust working modes, and realize intelligent and refined energy-saving management, ensuring that the unit operates in the best state and improving energy efficiency.

[0032] Machine learning and predictive analysis: Introduce machine learning algorithms (such as regression analysis, neural networks, etc.) to model and train historical operating data, and learn the relationship between various operating parameters under different load conditions and the influence on energy consumption and refrigeration effect. Based on this, when facing new working conditions, predict the best operating strategy in advance, such as adjusting the compressor speed, optimizing the expansion valve opening, etc., to improve refrigeration efficiency. At the same time, based on the learning of historical fault data, identify the relationship between parameter anomalies and faults, and warn of potential faults in advance, to ensure stable and reliable operation of the unit and improve the level of intelligent management.

[0033] Compact structure and automated design

[0034] Compact design: Each functional module is carefully laid out according to the process flow and space optimization principles. For example, the compression module and the condensation module are arranged in layers or side by side in a compact layout. Through special short connecting pipes and optimized interface design, the refrigerant can flow smoothly while shortening the transmission path, reducing pressure loss and heat exchange. The evaporation module and the expansion module are closely adjacent to each other, which is convenient for refrigerant allocation, saves installation space as a whole, reduces energy loss caused by long pipes, and is convenient for installation, commissioning and daily maintenance and repair work.

[0035] Fully automated design: The unit is equipped with a fully automated control system. When it starts, it automatically detects the status of each module according to the preset program. After confirming that it is normal, it is turned on and adjusted to the initial parameters. During operation, based on the data collected by the sensor in real time, the built-in intelligent algorithm is used to automatically adjust the parameters of key equipment such as the compressor, electronic expansion valve, fan, and water pump to maintain the best operating state. Users can remotely monitor the operation of the unit through a smartphone APP or a computer terminal, including viewing parameters, obtaining fault alarm information, etc., and can also set parameters remotely. When the system detects an abnormality, it notifies relevant personnel in a variety of ways and records detailed fault information to facilitate quick maintenance, achieve unattended and efficient operation, and provide a convenient and intelligent user experience.

[0036] Beneficial Effects

[0037] High efficiency and energy saving: Through the synergistic effect of variable frequency compressor, high-efficiency heat exchanger, optimized condensing technology and automatic adjustment of operation mode by intelligent control system, the startup energy waste is significantly reduced, the refrigeration efficiency is improved, and the energy consumption is reduced. The unit can achieve energy-saving operation under different load conditions, effectively reducing the user's operating costs.

[0038] Intelligent control: It is equipped with a complete Internet of Things control system, which can monitor all aspects of the unit data in real time, automatically optimize the operation mode based on a variety of factors, and support remote monitoring and control, so that users can understand the unit status and intervene anytime and anywhere. At the same time, the fault diagnosis and early warning functions can detect and deal with problems in time, reduce downtime, and improve the reliability of unit operation and the convenience of management.

[0039] Environmentally friendly: The use of low-GWP refrigerants and the recycling of waste heat reduce the impact of the greenhouse effect on the environment and reduce carbon emissions. This meets the current global requirements for environmental protection and sustainable development, helps companies practice the concept of green development and enhance their social image.

[0040] Structural advantages: The compact structural design saves installation space and facilitates installation and deployment in various site conditions. It also reduces energy losses caused by long connecting pipes, and the fully automated design enables unattended operation, further improving the convenience and efficiency of use and reducing manual maintenance costs.

[0041] Comprehensive performance improvement: The overall design optimizes the chiller from multiple dimensions, comprehensively improving the cooling and heating performance of the unit, enabling it to better adapt to different application scenarios and user needs, whether it is the high-load demand of industrial production or the requirements for comfort and energy saving in commercial offices, civil buildings, etc., can be better met.

[0042] The above invention content elaborates on the relevant technical details, design ideas and beneficial effects of the energy-saving integrated chiller, aiming to provide an innovative and practical chiller solution to promote the development of this field in a more energy-saving, environmentally friendly and intelligent direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0044] Figure 1 It is a schematic diagram of the overall structure of the system of the present invention;

[0045] Figure 2 It is a schematic diagram of the compression module structure of the present invention;

[0046] Figure 3 It is a schematic diagram of a condensing module heat exchanger of the present invention;

[0047] Figure 4 This is a schematic diagram of the control principle of the expansion module of the present invention;

[0048] Figure 5 It is a schematic diagram of the structure of the evaporation module of the present invention;

[0049] Figure 6 It is a schematic diagram of the control module system block of the present invention;

[0050] Figure 7 Schematic diagram of the waste heat recovery system of the present invention. DETAILED DESCRIPTION

[0051] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0052] It should be noted that the references to "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0053] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0054] Modular design of chillers

[0055] Modular components: divided into five main functional modules: compression, condensation, expansion, evaporation and control. Each module has a standardized design and can be flexibly combined as needed.

[0056] Compression module: A variable frequency compressor is used to automatically adjust the speed according to load changes to reduce startup energy waste. The connection with the condenser adopts a quick disassembly design for easy maintenance and replacement.

[0057] Condensation module: Use high-efficiency plate or spiral heat exchangers to increase the heat exchange area, reduce fluid resistance, and use coating optimization technology to reduce scale deposition and improve heat exchange efficiency.

[0058] Expansion module: It uses an automatic adjustment method combining an electronic expansion valve and a temperature sensor to adjust the refrigerant flow in real time according to the system pressure and temperature.

[0059] Evaporation module: Designed with a multi-channel high-efficiency evaporator, the water flow rate can be adjusted according to load requirements to ensure sufficient heat exchange.

[0060] Control module: Integrated IoT control system, responsible for real-time data monitoring and adjustment, optimizing operating status through cloud platform or local terminal analysis and automatically adjusting working mode.

[0061] Intelligent control system

[0062] Sensor installation: Install sensors at key locations to monitor temperature, pressure, flow and other data in real time.

[0063] Data collection and transmission: Sensor data is transmitted to the control system via a wired or wireless network. The control system analyzes and determines the operating status and automatically adjusts it.

[0064] Intelligent optimization algorithm: Based on factors such as ambient temperature, water demand, and historical operating data, the unit operation mode is adjusted through an adaptive algorithm to save energy or maintain cooling effect.

[0065] Remote monitoring and control: Use the IoT platform to achieve remote monitoring, parameter adjustment and fault diagnosis, reducing manual intervention.

[0066] Efficient refrigeration technology

[0067] Application of frequency conversion technology: The frequency conversion compressor automatically adjusts the speed to reduce startup energy waste and optimize the cooling effect when the load changes.

[0068] High-efficiency heat exchanger design: using special heat exchange materials and optimized design to increase heat exchange area, reduce fluid resistance and improve refrigeration efficiency.

[0069] Optimized condensation technology: Adopts air and water-cooled mixed condensation system, built-in fan and water flow regulation system, and automatically adjusts the working mode according to the condensation situation.

[0070] Refrigerant selection: Use low GWP refrigerants such as CO2 and ammonia to replace traditional refrigerants to reduce environmental impact and improve heat transfer efficiency.

[0071] Waste heat recovery and utilization

[0072] Waste heat recovery device: The waste heat generated by refrigeration is recovered through the waste heat recovery system and used to preheat circulating water, air and other places where heat energy is needed through a heat exchanger.

[0073] Heat pump combined design: When not in cooling mode, the heat pump device is used to convert condensation heat into usable thermal energy for heating or hot water supply, thereby improving energy efficiency.

[0074] Environmentally friendly refrigerants and energy-saving materials

[0075] Use of environmentally friendly refrigerants: Use low GWP refrigerants such as carbon dioxide and ammonia as refrigerants to reduce the impact on the environment.

[0076] High-efficiency thermal insulation materials: High-efficiency thermal insulation materials such as polyurethane foam and vacuum insulation panels are used on the outside of the unit to reduce heat loss.

[0077] Energy-saving optimization algorithm and data analysis

[0078] Big data analysis: Analyze historical operating data and automatically adjust the working mode according to factors such as season, ambient temperature, load demand, etc.

[0079] Machine Learning and Predictive Analysis: Use machine learning algorithms to build models and predict the best operating strategies under different loads, improve efficiency and prevent failures.

[0080] Compact structure and automated design

[0081] Compact design: Each module is compact and easy to connect, saving space, reducing energy loss, and facilitating installation and maintenance.

[0082] Fully automated design: Equipped with a fully automated control system, it can run unattended, and users can monitor and adjust in real time through the terminal.

[0083] Based on the content of the above technical solution, it is optimized to make the content richer and the process more detailed.

[0084] The following is a more detailed presentation of the specific implementation methods of the energy-saving integrated chiller design after optimization:

[0085] Modular design of chillers

[0086] Modular components:

[0087] The overall architecture of the chiller is divided into five core modules based on function, namely compression module, condensation module, expansion module, evaporation module and control module. This modular design concept aims to break the limitations of traditional unit integration. Each module follows standardized design principles and has unified interface specifications and size standards. In this way, whether in the initial installation stage or in the subsequent adjustments based on changes in actual usage scenarios, the various modules can be flexibly combined and matched according to specific cooling capacity requirements, spatial layout restrictions and special requirements of different application scenarios, to achieve highly customized chiller configuration and maximize the satisfaction of diverse user needs.

[0088] Compression module:

[0089] As the core power component of the chiller, the compression module uses advanced variable frequency compressor technology. This compressor has an intelligent speed adjustment function, which uses a built-in high-precision sensor to sense the load changes of the unit in real time. When the load is low, the compressor automatically reduces the speed, avoiding the large amount of startup energy waste caused by the frequent start and stop of traditional fixed-speed compressors, and effectively reducing the overall energy consumption. In addition, the connection between the compressor and the condenser adopts an innovative quick-disassembly design, which is specifically achieved through a special quick-connect connector and an easy-to-operate snap-on structure. When the compressor needs to be maintained, repaired or replaced, the staff does not need complicated tools and cumbersome operating procedures. It only takes a few simple steps to easily separate the compressor from the condenser, which greatly shortens the maintenance time and improves the maintainability and operational reliability of the unit.

[0090] Condensation module:

[0091] The selection of heat exchangers for the condensing module is extremely critical. In this design, high-efficiency plate heat exchangers or spiral heat exchangers are preferred. These heat exchangers are unique in structural design. Through special plate or spiral channel structures, the heat exchange area between the refrigerant and the cooling medium is greatly increased, making the heat exchange more sufficient. At the same time, in order to further optimize the heat exchange performance, advanced coating optimization technology is used inside the heat exchanger. This coating has extremely low surface roughness and excellent anti-scaling performance. It can not only reduce the fluid resistance encountered by the cooling medium during the flow process, ensuring that the cooling medium passes smoothly through the heat exchanger, but also effectively inhibit the deposition of scale on the inner wall of the heat exchanger, and maintain the efficient heat exchange state of the heat exchanger for a long time. Even after long-term operation, only simple cleaning and maintenance are required to restore its heat exchange efficiency close to the initial state.

[0092] Expansion module:

[0093] The expansion module uses an automatic adjustment method that closely cooperates with the electronic expansion valve and the temperature sensor to build an accurate and efficient refrigerant flow control system. The temperature sensors are distributed in key positions of the system to monitor the temperature data of the refrigerant in different links in real time. At the same time, the system can also obtain pressure information at various locations. Based on these real-time monitored temperature and pressure data, the control system accurately calculates the optimal flow rate of the refrigerant under the current working conditions through a complex algorithm, and drives the electronic expansion valve to adjust the opening accordingly, ensuring that the refrigerant is always in the best working state during the entire cooling cycle, achieving dual optimization of refrigeration effect and energy utilization efficiency.

[0094] Evaporation module:

[0095] The evaporation module is equipped with a multi-channel high-efficiency evaporator, which is designed with multiple independent and interconnected water flow channels and refrigerant channels. This multi-channel structure enables the refrigerant and water to form a more complex and sufficient heat exchange path in the evaporator, greatly improving the efficiency of heat exchange. In addition, the evaporator also has an intelligent water flow rate adjustment function, which dynamically adjusts the water flow rate through a precise electric regulating valve according to the load demand changes monitored in real time. Under low load conditions, the water flow rate is appropriately reduced to ensure that the refrigerant can fully absorb the heat in the water; under high load conditions, the water flow rate is accelerated to meet the needs of rapid cooling, always ensuring that the heat in the evaporation process can be fully exchanged, and maintaining stable and efficient refrigeration performance.

[0096] Control Module:

[0097] The control module integrates an advanced Internet of Things control system, which is like the "smart brain" of the chiller, and is fully responsible for real-time data monitoring and precise adjustment of all modules. A large number of sensors are deployed at the key parts of each module. These sensors can continuously collect various operating data such as temperature, pressure, flow, etc., and transmit the data to the control system in real time through wired (such as short-distance transmission using shielded twisted pair with strong anti-interference ability) or wireless network (such as long-distance transmission based on reliable Wi-Fi or industrial-grade Zigbee protocol). After receiving the data, the control system relies on powerful data analysis and processing capabilities. On the one hand, it compares the real-time data with the preset optimal operating parameter range to determine whether the system is currently in the optimal operating state; on the other hand, it combines the massive historical operating data stored in the cloud platform and the preset operating rules of the local terminal, uses intelligent algorithms to automatically generate optimization strategies, and adjusts the working mode of each part of the unit in real time, realizing the intelligent and automatic operation of the chiller, ensuring that it always works stably in an efficient and energy-saving state.

[0098] Intelligent control system

[0099] Sensor Installation:

[0100] Various types of sensors are carefully installed at key locations of the chiller, including but not limited to the inlet and outlet of the compressor, the heat exchange tube bundle of the condenser, the front and rear ends of the expansion valve, and the internal channels of the evaporator. For example, the temperature sensor uses a high-precision platinum resistance thermometer or thermocouple sensor, which can accurately measure tiny temperature changes and provide real-time feedback on the temperature conditions of various parts; the pressure sensor uses a piezoresistive sensor with high sensitivity and a wide range to accurately monitor the pressure values ​​at different locations in the system; the flow sensor uses advanced electromagnetic induction principles or ultrasonic measurement technology to accurately measure the flow of refrigerants and cooling media. These sensors work together to obtain key data on the operation of the unit from all directions and angles, providing a solid data foundation for subsequent data analysis and intelligent control.

[0101] Data collection and transmission:

[0102] The data collected by the sensor will be encoded and processed according to the predetermined communication protocol, and then sent to the control system through a stable and reliable transmission method. For short-distance data transmission, wired methods are preferred, using shielded twisted pair or coaxial cable to effectively avoid the influence of external electromagnetic interference on data signals and ensure the accuracy and integrity of the data. For situations where the distance is long or the wiring is inconvenient, wireless networks are used for transmission. The appropriate wireless communication technology is selected according to the actual application scenario. For example, Wi-Fi networks are suitable for places with existing wireless network coverage and high data transmission rate requirements. Zigbee protocol is more suitable for building low-power, low-rate but high-reliability wireless sensor networks in industrial environments. The control system is equipped with a special data receiving module that can receive and analyze the transmitted data in real time, convert it into a digital signal for analysis and processing, and prepare for subsequent operation status judgment and optimization control.

[0103] Intelligent optimization algorithm:

[0104] The control system has a set of complex and efficient intelligent optimization algorithms built in, which fully considers multiple key factors that affect the operation of the unit, such as real-time changes in ambient temperature (obtaining local temperature, humidity and other meteorological data through an external meteorological station), dynamic fluctuations in water demand (based on water consumption, water temperature demand and other information fed back by the connected water system) and unit performance characteristics and operating rules reflected in historical operating data. Based on these multi-dimensional data inputs, the algorithm adjusts the unit's operating mode in real time through adaptive logical judgment and mathematical calculations. For example, under low-load conditions with low ambient temperature and low water demand, the system will automatically issue instructions to gradually reduce the speed of the compressor, while fine-tuning the opening of the expansion valve and related parameters of the condensing and evaporating modules to reduce energy consumption and maintain a stable cooling effect; in hot weather and high-load conditions with strong water demand, the algorithm will command the unit to increase the condensing and evaporating efficiency, and strengthen the heat exchange process by speeding up the fan speed and adjusting the water cooling flow to ensure that the cooling demand can be met, while also optimizing energy utilization efficiency as much as possible to avoid unnecessary energy waste.

[0105] Remote monitoring and control:

[0106] With the powerful interconnection function of the IoT platform, users can remotely monitor the real-time operating status of the chiller through a variety of terminal devices (such as smartphones, tablets, computers, etc.). On the IoT platform, an intuitive and easy-to-use user interface has been developed to present the various operating parameters of the unit in various forms such as charts, curves, and real-time data displays, such as the current refrigeration temperature, compressor speed, energy consumption, etc., so that users can see it at a glance. At the same time, users can also remotely adjust the key parameters of the unit through this interface, such as setting the refrigeration target temperature, adjusting the compressor operating frequency, etc., to achieve remote control of the unit. In addition, the system has a complete fault diagnosis and early warning function. Once an abnormal situation is detected in the unit, such as a sensor data exceeding the normal range, a module with a fault code, etc., it will immediately notify the relevant personnel through SMS, push messages, etc., and display the fault information and possible causes in detail on the interface, so that maintenance personnel can prepare in advance, troubleshoot and repair in time, and minimize the downtime and losses caused by unit failures, truly realizing remote intelligent management of chillers and avoiding a large amount of unnecessary manual on-site intervention.

[0107] Efficient refrigeration technology

[0108] Frequency conversion technology application:

[0109] As one of the core applications of efficient refrigeration technology, variable frequency compressors have demonstrated outstanding performance advantages. It abandons the single fixed speed working mode of traditional fixed speed compressors, and instead uses a built-in variable frequency drive device to flexibly adjust the speed according to the real-time refrigeration needs of the chiller. During the unit startup phase, the variable frequency compressor can start slowly at a lower speed. Compared with the instant full-power startup of traditional fixed speed compressors, it greatly reduces the starting current and avoids the impact on the power grid. It also significantly reduces the energy waste during startup. During operation, as the load changes, such as when there are few people in the office at night and the refrigeration demand is reduced, or when the heat load changes due to phased production adjustments in industrial production, the compressor can sense in real time and automatically reduce the speed, accurately matching the actual refrigeration demand, so that the cooling capacity and heat load are always well adapted, which not only effectively saves energy, but also further optimizes the refrigeration effect during the entire refrigeration cycle and extends the service life of the unit.

[0110] High efficiency heat exchanger design:

[0111] The design of an efficient heat exchanger involves careful consideration and optimization of many aspects. First, in the selection of heat exchange materials, special alloy materials or high-performance composite materials with high thermal conductivity, good corrosion resistance and thermal stability are selected. These materials can greatly improve the efficiency of heat transfer while ensuring structural strength. Secondly, in the design of the internal and external surface structures of the heat exchanger, innovative design techniques such as microchannels and fin extensions are used. The microchannel structure on the inner surface increases the contact area between the refrigerant and the heat exchange wall, allowing the refrigerant to more fully exchange heat with the wall during the flow process; the fin structure on the outer surface further expands the contact area with the external cooling medium, while optimizing the flow field distribution of air or water flow, reducing the influence of the boundary layer, effectively reducing fluid resistance, and ensuring that the cooling medium can quickly take away heat, so that the cooling efficiency of the entire heat exchanger reaches the optimal level, while meeting the cooling needs, minimizing energy consumption and improving the overall performance of the unit.

[0112] Condensation technology optimization:

[0113] This design adopts an air-water-cooled mixed condensing system, which fully combines the advantages of air condensation and water cooling. In normal operation and relatively low load, the air condensation mode is enabled first. The high-efficiency fan arranged outside the condenser causes the air to flow quickly through the heat exchange tube bundle of the condenser to take away the heat released by the refrigerant. This air condensation method does not require additional water resource consumption, has low operating costs, and can meet basic condensation needs at low loads, reducing energy consumption. When the unit is facing high-load operation, such as during the peak period of industrial production in the hot summer or during crowded hours in large commercial places, when air condensation alone is difficult to meet the requirements of rapid heat dissipation, the water cooling system will automatically intervene. The water cooling system transports cooling water to the cooling channel inside the condenser through a circulating water pump, and uses the high specific heat capacity of water to quickly absorb and take away a large amount of heat to achieve efficient condensation. At the same time, the condenser is equipped with an advanced fan and water flow regulation system, which uses sensors to monitor the condensation temperature, pressure, flow rate, temperature and other parameters of the cooling water in real time, and automatically adjusts the fan speed and water flow rate according to the actual condensation situation, ensuring the best condensation effect under different load conditions, thus ensuring the stable and efficient operation of the chiller.

[0114] Refrigerant selection:

[0115] In the selection of refrigerants, this design scheme abandons the traditional refrigerants with high global warming potential (GWP) and instead adopts low GWP refrigerants, such as carbon dioxide (CO2) or ammonia (NH3). As a natural refrigerant, carbon dioxide has many advantages such as non-toxic, odorless, non-flammable, and stable chemical properties. Its depletion index for the ozone layer is zero, and its global warming potential is greatly reduced compared to traditional refrigerants. Although ammonia has a certain pungent odor, it also has excellent thermal conductivity and outstanding environmental performance. It is an ideal green refrigerant. These low GWP refrigerants can significantly reduce the impact of the greenhouse effect on the atmospheric environment while ensuring good cooling effects in the refrigeration cycle of the chiller, which meets the current urgent global demand for environmental protection and sustainable development, and lays a solid foundation for the green and energy-saving operation of the chiller.

[0116] Waste heat recovery and utilization

[0117] Waste heat recovery device:

[0118] During the refrigeration process, the chiller will inevitably generate a certain amount of waste heat. This waste heat contains considerable thermal energy. If it is discharged directly, it will cause energy waste. For this reason, a set of efficient waste heat recovery devices has been specially designed. The device mainly realizes the recycling of waste heat based on the principle of heat exchange. Special heat exchangers are installed at the key waste heat discharge parts of the unit, such as the exhaust end of the compressor and the high-temperature side of the condenser. These heat exchangers are made of metal materials with high thermal conductivity (such as copper alloy or stainless steel, etc.), and the complex flow channel structure is designed inside to ensure that the waste heat can be efficiently transferred to the recovery medium. The recovery medium usually chooses water or other suitable heat transfer fluids. Through the heat exchanger, the waste heat is transferred to the recovery medium, so that its temperature is increased to form hot water or hot fluid with a certain amount of thermal energy. Then, with the help of circulating pumps, these hot water or thermal fluids carrying waste heat are transported to other systems that require thermal energy, such as domestic hot water systems in office buildings to provide employees with hot water for daily washing, showering, etc.; or transported to certain heating links in the industrial process, such as preheating production materials, drying processes, etc., to achieve secondary utilization of energy, improve the comprehensive utilization efficiency of the entire energy system, and achieve the goal of energy conservation and emission reduction.

[0119] Heat pump combined design:

[0120] To further expand the way of waste heat utilization, this design cleverly combines heat pump technology. During periods when refrigeration operation is not required, such as the transition period in spring and autumn or the low load period at night, the condensation heat originally discharged by the chiller during the refrigeration process can be efficiently converted by the heat pump device. The heat pump device uses key components such as compressors, evaporators, condensers and throttling devices to form a closed thermal cycle system. It uses waste heat as a low-temperature heat source and consumes a certain amount of electrical energy to increase the waste heat from a low temperature to a high temperature, so that it can be directly used. High-quality heat energy can be used to heat buildings to meet indoor heating needs, or to supply hot water to meet domestic hot water or hot water needs in industrial production. This design method combined with heat pumps fully taps the potential utilization value of waste heat from chillers, further improves the energy efficiency of the overall system, and while reducing energy consumption, it also brings users more energy utilization options, reduces energy costs, and achieves a win-win situation of economic and environmental benefits.

[0121] Environmentally friendly refrigerants and energy-saving materials

[0122] Environmentally friendly refrigerant use:

[0123] Environmentally friendly refrigerants such as carbon dioxide (CO2) and ammonia (NH3) used in chillers are determined after strict screening and evaluation. When operating in a supercritical state, carbon dioxide refrigerant has unique thermophysical properties. Its parameters such as density, specific heat capacity and thermal conductivity enable it to achieve efficient heat transfer in the refrigeration cycle. It stands out among many environmentally friendly refrigerants due to its wide source, relatively low cost and environmentally friendly characteristics. Ammonia refrigerant has a wide range of applications in the field of industrial refrigeration due to its excellent refrigeration performance and good heat transfer efficiency. However, considering that ammonia has certain toxicity and pungent odor, strict safety protection measures are taken during use, such as advanced leak detection alarm devices, perfect ventilation and air exchange systems, etc., to ensure that it will not cause harm to personnel and the environment under normal use. By using these low GWP refrigerants, the impact of chillers on global warming throughout their life cycle is controlled to a very small range, contributing positive forces to environmental protection.

[0124] High-efficiency insulation material:

[0125] In order to reduce the heat loss of the chiller during operation and improve the energy utilization efficiency, high-performance insulation materials are used on the outside of the unit for insulation treatment. Among them, polyurethane foam materials are widely used for filling the insulation layer of the unit shell due to their excellent thermal insulation performance, low density, good formability and relatively low cost. It forms a uniform and fine closed-cell structure through the foaming process, effectively preventing the conduction and convection of heat, and greatly reducing the heat exchange between the unit and the external environment. In addition, vacuum insulation panels are also an important insulation option. It uses the internal vacuum environment to minimize the heat conduction medium. With the metal foil layer with extremely high reflectivity, it can achieve excellent insulation effect at a very small thickness, especially suitable for installation scenarios with strict space requirements. The comprehensive use of these high-efficiency insulation materials enables the chiller to better keep the internal cold or heat generated inside the unit during operation, reducing the extra energy consumed to maintain the set temperature and achieving energy-saving goals.

[0126] Energy-saving optimization algorithm and data analysis

[0127] Big Data Analysis:

[0128] The chiller is equipped with a powerful data storage and analysis system, which can deeply mine and analyze the historical operation data accumulated over a long period of time. These historical data cover the operation records of different seasons and time periods, including rich information such as ambient temperature, humidity, load of the unit, operating parameters of each module (such as compressor speed, heat exchanger inlet and outlet temperature, refrigerant flow, etc.) and corresponding energy consumption. By using big data analysis technology, the system can automatically identify the typical operation mode of the unit under different seasonal changes, such as the optimal parameter configuration during high temperature and high load in summer, and the energy-saving operation strategy during low temperature and low load in winter. At the same time, combined with the real-time monitoring data of the external ambient temperature and the current load demand feedback, the system can accurately predict the operation trend of the unit in the future, and automatically adjust the working mode to ensure that the unit is always operating in the state that best matches the actual working conditions, maximize energy utilization efficiency, reduce operating costs, and realize intelligent and refined energy-saving management.

[0129] Machine Learning and Predictive Analytics:

[0130] The introduction of machine learning algorithms, modeling and training of massive historical operating data, enables the chiller to have powerful predictive analysis capabilities. By adopting machine learning methods such as regression analysis and neural networks, the system can learn from historical data the complex relationship between various operating parameters under different load conditions and the influence of energy consumption and refrigeration effect. Based on these learning results, when facing new operating conditions, the system can predict the best operation strategy in advance, such as adjusting the speed of the compressor in advance, optimizing the opening of the expansion valve, and adjusting the working parameters of the condensing and evaporating modules, etc., which can not only improve the overall refrigeration efficiency, but also effectively prevent potential failures that may be caused by unreasonable operation. For example, by learning from historical fault data, the system can identify the relationship between abnormal changes in certain parameters and specific faults. When similar parameter change trends are monitored, fault warnings are issued in advance to remind maintenance personnel to take timely measures to avoid further expansion of faults, ensure the stable and reliable operation of the unit, and further improve the intelligent management level and operation safety of the chiller.

[0131] Compact structure and automated design

[0132] Compact Design:

[0133] In the overall structural design of the chiller, the high efficiency of space utilization and the convenience of module connection are fully considered, and a compact design concept is adopted. The layout of each functional module has been carefully planned and arranged according to the principles of process flow and space optimization, minimizing the gaps between modules and the length of unnecessary connecting pipes, so that the entire unit can be highly integrated in a limited space. For example, the compression module and the condensing module adopt a compact layout of upper and lower layers or side by side. Through the special short connecting pipes and optimized interface design, it not only ensures the smooth flow of refrigerant, but also shortens the refrigerant transmission path to the maximum extent, reduces the pressure loss and heat exchange of the refrigerant during the transmission process, and improves the refrigeration efficiency. The evaporation module and the expansion module are also closely adjacent, which facilitates the rapid and accurate allocation of refrigerant between these two key links, ensuring that the entire refrigeration cycle can be carried out efficiently and stably. This compact structural design not only effectively saves installation space, which is particularly important for some machine rooms or industrial sites with limited space, but also reduces energy losses caused by too long connecting pipes, etc., and facilitates subsequent installation and commissioning as well as daily maintenance and repair work. Only a small operating space is required to complete the operation of each module, greatly improving work efficiency.

[0134] Fully automated design:

[0135] The unit is equipped with a fully automated control system, which truly realizes an unattended and efficient operation mode. From the beginning of the unit startup, the control system will automatically detect the status of each module according to the preset startup procedure, confirm whether each sensor, actuator and other equipment is working properly, and automatically turn on the corresponding module and adjust it to the initial operating parameters after ensuring that everything is ready. During the operation process, the control system relies on the temperature, pressure, flow and other data collected in real time by sensors distributed everywhere, and uses the built-in intelligent algorithm to perform uninterrupted analysis and judgment. According to the actual working conditions, the operating parameters of key equipment such as compressors, electronic expansion valves, fans, and water pumps are automatically adjusted dynamically to ensure that the unit is always in the best cooling or heating state (when waste heat is used for heating, etc.). Users do not need to perform tedious manual operations on site. Through the specially developed supporting APP on smartphones or remote monitoring software on computer terminals, they can view the real-time operation of the unit anytime and anywhere, including the working parameters of each module, energy consumption data, and fault alarm information. In addition, the parameters of the unit can be set remotely, such as setting the target temperature for cooling or heating, adjusting the operating mode, etc. The operation interface is simple and intuitive, and easy to use. Once the system detects an abnormal situation, it will immediately notify the relevant management and maintenance personnel through various means (such as SMS, APP push messages, emails, etc.), and record the time, location and related abnormal parameters of the fault in detail, so that maintenance personnel can quickly locate the problem and carry out targeted repairs, ensuring that the unit can resume normal operation as soon as possible, maximizing the reliability and continuity of the entire system, and providing users with a convenient, efficient and intelligent user experience.

[0136] Through the detailed and comprehensive optimization design implementation methods of the above aspects, the energy-saving integrated chiller can achieve multiple advantages of high efficiency, energy saving, environmental friendliness, intelligence and convenience while meeting the actual needs of cooling and heating, adapting to a variety of different application scenarios, and providing reliable and sustainable temperature regulation solutions for industrial production, commercial offices and civil buildings.

[0137] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0138] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A design method for an energy-saving integrated chiller, characterized in that: The chiller consists of five functional modules, namely compression module, condensation module, expansion module, evaporation module and control module. Each module is independently designed and connected with standardized interfaces, with uniform size specifications and connection methods. Each module can be flexibly combined according to actual needs, load changes, and spatial layout factors to achieve highly customized configuration to meet the needs of different application scenarios and users.

2. The design method of the energy-saving integrated chiller according to claim 1, characterized in that: The compression module uses a variable frequency compressor with an intelligent speed regulation function, and monitors the load changes of the chiller in real time through a built-in high-precision sensor; the compressor automatically reduces the speed when the load is low, effectively avoiding the waste of startup energy caused by the frequent start and stop of traditional fixed-speed compressors, thereby reducing the overall energy consumption of the unit; in addition, the compressor and condenser are connected through a quick disassembly design, using a special quick-connect connector and a convenient snap-on structure, which is convenient for quick disassembly and maintenance, greatly reducing maintenance time and improving the system's maintainability and operational reliability.

3. The design method of the energy-saving integrated chiller according to claim 1, characterized in that: The condensing module adopts a high-efficiency plate heat exchanger or a spiral heat exchanger. These heat exchangers adopt an innovative structural design, which can greatly increase the heat exchange area between the refrigerant and the cooling medium, thereby improving the heat exchange efficiency. In order to further optimize the condensation process, the internal surface of the heat exchanger adopts advanced coating technology. This coating has low surface roughness and excellent anti-scaling performance, which can effectively reduce the fluid resistance during the flow of the cooling medium, ensure that the cooling medium passes through the heat exchanger smoothly, and avoid the deposition of scale, so as to maintain efficient heat exchange performance for a long time.

4. The design method of the energy-saving integrated chiller according to claim 1, characterized in that: The expansion module uses an electronic expansion valve and a temperature sensor to closely cooperate and accurately control the refrigerant flow rate through automatic adjustment. The temperature sensor is distributed in key positions of the system to monitor the temperature of the refrigerant in each link in real time, and cooperates with the pressure sensor to obtain pressure data; based on these real-time data, the control system calculates the optimal refrigerant flow rate through an algorithm and adjusts the opening of the electronic expansion valve to ensure that the entire refrigeration system can maintain the best refrigeration effect under different working conditions and optimize energy efficiency.

5. The design method of the energy-saving integrated chiller according to claim 1, characterized in that: The evaporation module adopts a multi-channel high-efficiency evaporator, and a plurality of independent but interconnected water flow channels and refrigerant channels are designed inside the evaporator; this multi-channel structure enables the refrigerant and water to form a more complex and efficient heat exchange path in the evaporator, greatly improving the heat exchange efficiency; at the same time, the evaporator also has an intelligent water flow rate adjustment function, which can adjust the water flow rate through an electric valve according to real-time load requirements, and reduce the water flow rate under low load conditions to ensure that the refrigerant can effectively absorb the heat in the water; and when the load is high, the water flow rate is appropriately increased to meet the rapid cooling needs, thereby ensuring sufficient heat exchange during the evaporation process and maintaining stable and efficient refrigeration performance.

6. The design method of the energy-saving integrated chiller according to claim 1, characterized in that: The control module integrates an advanced Internet of Things control system, which is responsible for real-time monitoring, data collection and analysis of the operating status of each module of the chiller. Through the sensors deployed in each module, it collects key information such as temperature, pressure and flow in real time, and transmits the data to the control system via a wired or wireless network. The control system analyzes and judges the data, and automatically generates an optimization strategy. It adjusts the operating mode of the unit in real time through an intelligent algorithm to ensure that the system is always in the best operating state, thereby achieving efficient and energy-saving operation of the chiller.

7. The design method of the energy-saving integrated chiller according to claim 6, characterized in that: The control system receives real-time data from sensors through a wireless network or a wired network, and uses an intelligent optimization algorithm to automatically adjust the working mode of the chiller in combination with factors such as ambient temperature, load demand, and historical operating data. The control system can not only optimize operating efficiency, but also automatically perform fault diagnosis when a fault or abnormality is found, and provide remote control functions through a cloud platform or a local terminal to reduce manual intervention and improve system reliability.

8. The design method of the energy-saving integrated chiller according to claim 1, characterized in that: The refrigerant is a low GWP refrigerant, and carbon dioxide and ammonia are preferably used as environmentally friendly refrigerants to replace traditional high GWP refrigerants to reduce the impact on the environment. Low GWP refrigerants have better thermal conductivity, can reduce energy consumption under the same cooling capacity, improve cooling efficiency, and meet green energy saving and environmental protection requirements.

9. The design method of energy-saving integrated chiller according to claim 1, characterized in that: The chiller is equipped with a waste heat recovery system that can recover waste heat generated during the refrigeration process. Through a heat exchanger, the waste heat is used to preheat circulating water and air media to reduce external energy consumption. Furthermore, the chiller is also equipped with a heat pump device that can use condensation heat for heating or hot water supply when there is no refrigeration demand, thereby improving energy utilization efficiency and reducing dependence on external energy.

10. The design method of energy-saving integrated chiller according to claim 1, characterized in that: The chiller adopts a compact design, and the modules are combined through a simple connection method, which saves space, reduces installation difficulty, and reduces energy loss. At the same time, the unit is equipped with a fully automated control system to achieve unattended operation. Users can monitor and adjust the working status of the unit in real time through the cloud platform or local terminal to ensure that the unit always operates stably in the best operating state.

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