A refrigeration system with high efficiency heat exchange

Abstract

The present invention belongs to the technical field of energy-saving refrigeration equipment, and specifically relates to a refrigeration system with efficient heat exchange, including a refrigeration body, wherein a compressor, a condenser, a heat exchanger, an evaporator and an electrical control panel are arranged inside the refrigeration body, and an intelligent control system for controlling various electrical appliances is arranged in the electrical control panel. The present invention improves the refrigeration efficiency and performance by optimizing the design of the heat exchanger. The heat exchanger adopts a composite flow channel design, and the refrigerant flows from the straight channel section of the composite flow channel to the corrugated flow channel section, which can increase the contact area between the refrigerant and the external environment, thereby improving the heat exchange efficiency. The intelligent control system can dynamically adjust the working state of the compressor and the heat exchanger according to different refrigeration requirements, realize accurate temperature control and optimal utilization of energy, and can monitor the working state of the heat exchanger in real time, and automatically alarm when abnormalities are detected, which is convenient for maintenance and troubleshooting.

Description

Technical Field

[0001] The present invention belongs to the technical field of energy-saving refrigeration equipment, and in particular relates to a refrigeration system with high-efficiency heat exchange. Background Art

[0002] At present, the refrigeration body used in refrigeration equipment is generally composed of a compressor, a condenser, a filter, a capillary tube (or a mechanical expansion valve) and an evaporator, wherein the exhaust port of the compressor is connected to the condenser through a pipe, the other end of the condenser is connected to the input end of the filter through a pipe, the output end of the filter is connected to the capillary tube (or a mechanical expansion valve) through a pipe, the capillary tube (or a mechanical expansion valve) is connected to the evaporator through a pipe, the evaporator exchanges heat with the material to be refrigerated, and the output end of the evaporator is connected to the return air port of the compressor through a pipe.

[0003] Chinese patent publication number CN220733329U discloses an integrated air conditioning and refrigeration unit, comprising a base with fixing slots on both sides of the base, and fixing plates fixedly disposed within the fixing slots. The patent uses a controller to turn on the air conditioner, causing the air compressor to start operating. Air enters the condenser and is cooled by a fan, causing it to liquefy. The air then flows out of the condenser and passes through a dryer where the liquid is filtered, heated, and vaporized again. The liquid is then transported to the upper condenser and blown by a blower to be discharged through the exhaust port. The patent's detachable shell and shell cover structure not only allows for regular cleaning and replacement of the interior, significantly extending the life of the unit, but also effectively inspects the operating status of the internal structure, improving its efficiency. The retractable pulley structure at the bottom provides excellent assistance when the air conditioner needs to be moved, saving the operator considerable physical effort.

[0004] Although the above patent solves the problems of short life and inconvenience in moving the refrigeration body, the following problems still exist in actual use. With the intensification of the global energy crisis and the improvement of environmental protection awareness, traditional refrigeration bodies are gradually unable to meet the needs of modern society due to their high energy consumption and low efficiency; therefore, in order to meet the existing needs, we have proposed a refrigeration system with high-efficiency heat exchange. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a refrigeration system with high-efficiency heat exchange in response to the shortcomings of the existing technology. The present invention improves the refrigeration efficiency and performance by optimizing the design of the heat exchanger. The heat exchanger adopts a composite flow channel design, and the refrigerant flows from the straight channel section of the composite flow channel to the corrugated flow channel section, which can increase the contact area between the refrigerant and the external environment, thereby improving the heat exchange efficiency. The intelligent control system can dynamically adjust the working status of the compressor and heat exchanger according to different refrigeration requirements, achieve precise temperature control and optimal energy utilization, and at the same time can monitor the working status of the heat exchanger in real time, and automatically alarm when an abnormality is detected, facilitating maintenance and troubleshooting, thereby solving the problems raised in the above background technology.

[0006] This solution is achieved through the following technical measures: a refrigeration system with high-efficiency heat exchange, including a refrigeration body, inside which are provided a compressor, condenser, heat exchanger, evaporator and electrical control panel, in which the electrical control panel is provided with an intelligent control system for controlling each electrical appliance.

[0007] The compressor compresses the refrigerant into a high-pressure saturated gas. The compressed gaseous refrigerant is transported to the condenser for condensation. The heat exchanger performs heat exchange on the condensed refrigerant. The refrigerant after heat exchange is passed into the evaporator. The evaporator cools and exchanges heat with the medium that the refrigerant needs to cool.

[0008] Intelligent control system, including multiple adjustment modes, for:

[0009] Select the adjustment mode according to the cooling demand. Different adjustment modes are adjusted according to the changes in indoor and outdoor temperature, the temperature set by the user and the off-peak cooling demand period. The working status of the compressor and heat exchanger are adjusted according to the different cooling demand dynamics.

[0010] Preferably, the compressor and the condenser are located below the interior of the refrigeration unit, the evaporator is located above the interior of the refrigeration unit, and the heat exchanger is located between the condenser and the evaporator.

[0011] Preferably, an air outlet is provided above the front of the refrigeration body, and an air inlet is provided below the front of the refrigeration body. Both the air outlet and the air inlet are connected to the interior of the refrigeration body. An intelligent panel is provided on the front of the refrigeration body and below the air outlet. A signal connection is established between the intelligent panel and the intelligent control system.

[0012] Preferably, the heat exchanger includes a shell, a front cover is provided in front of the shell, the front cover is fixedly connected to the shell by bolts, and a plurality of rows of composite flow channels are provided inside the shell.

[0013] Preferably, the overall structure of the heat exchanger is made of a high thermal conductivity material such as aluminum alloy or copper alloy, the surface of the overall structure of the heat exchanger is specially treated with coating or plating, and the composite flow channel includes a straight flow channel section and a corrugated flow channel section.

[0014] Preferably, the intelligent control system includes:

[0015] Smart selection unit for:

[0016] The user selects different adjustment modes according to the cooling demand. Different adjustment modes have corresponding temperature settings. Specifically, the intelligent control unit adjusts according to the temperature settings corresponding to the indoor and outdoor temperature changes, the temperature set by the user, and the off-peak cooling demand period;

[0017] Intelligent control unit for:

[0018] The working status of the compressor and heat exchanger is adjusted according to the changes in indoor and outdoor temperature, the temperature set by the user, and the different cooling demand dynamics during off-peak cooling demand periods.

[0019] Preferably, the adjustment mode of the intelligent selection unit is divided into the following three cases:

[0020] Automatic mode includes a temperature sensor that monitors indoor and outdoor temperatures in real time, obtains real-time indoor and outdoor temperature data, analyzes indoor and outdoor temperature changes based on the real-time temperature data, and enables the intelligent control unit to automatically adjust the operating speed of the compressor and the working status of the heat exchanger according to the indoor and outdoor temperature changes;

[0021] In manual mode, the user manually sets the temperature, and the intelligent control unit automatically adjusts the operating speed of the compressor and the working state of the heat exchanger according to the temperature manually set by the user;

[0022] Energy-saving mode pre-sets the off-peak cooling demand period. According to the set off-peak cooling demand period, the intelligent control unit reduces the compressor operating frequency and the working efficiency of the heat exchanger.

[0023] Preferably, the intelligent control unit includes:

[0024] Detection module for:

[0025] Perform abnormality detection on the heat exchanger. Whenever the intelligent control unit controls and adjusts the heat exchanger, the detection module will detect the heat exchanger and monitor the working status of the heat exchanger in real time.

[0026] If the detection module does not detect any abnormality in the heat exchanger, it continues to detect the heat exchanger;

[0027] If the detection module detects an abnormality in the heat exchanger, it will automatically issue an alarm to the user.

[0028] Preferably, the detection module further includes:

[0029] A real-time data acquisition module is used to collect operating parameters of the heat exchanger; wherein the operating parameters include inlet and outlet temperature data, pressure loss data and fluid flow rate change rate;

[0030] An evaluation coefficient acquisition module, configured to obtain an operating temperature evaluation coefficient, an operating pressure evaluation coefficient, and an operating flow evaluation coefficient corresponding to the operation of the heat exchanger using the inlet and outlet temperature data, the pressure loss data, and the fluid flow rate change rate;

[0031] An operation quality evaluation parameter acquisition module is used to obtain the operation quality evaluation parameters of the heat exchanger using the operation temperature evaluation coefficient, the operation pressure evaluation coefficient, and the operation flow evaluation coefficient; wherein the operation quality evaluation parameters are obtained by the following formula:

[0032]

[0033] Wherein, Q represents the operation quality evaluation parameter; Q0 represents the preset parameter reference value; exp() represents the exponential operation function; T represents the operation temperature evaluation coefficient; F represents the operation pressure evaluation coefficient; V represents the operation flow evaluation coefficient;

[0034] The abnormality determination module is used to determine that the heat exchanger is operating abnormally when the operation quality evaluation parameter is lower than a preset quality evaluation parameter threshold.

[0035] Preferably, the evaluation coefficient acquisition module includes:

[0036] an inlet and outlet temperature data extraction module, used to extract the inlet and outlet temperature data included in the operating parameters of the heat exchanger;

[0037] The operating temperature evaluation coefficient acquisition module is used to obtain the operating temperature evaluation coefficient using the corresponding inlet and outlet temperature data during the operation of the heat exchanger; wherein, the operating temperature evaluation coefficient is obtained by the following formula:

[0038]

[0039]

[0040]

[0041] Where, T represents the operating temperature evaluation coefficient; In represents the natural logarithm function; t 01 and t 02Respectively represent the first dynamic regulation factor and the second dynamic regulation factor; T y represents the preset temperature difference threshold; Tc represents the current inlet and outlet temperature difference value of the heat exchanger; n represents the number of unit times during which the inlet and outlet temperature difference of the heat exchanger does not exceed the preset temperature difference threshold, and the value range of the unit time is 1s-3s; m represents the number of unit times during which the inlet and outlet temperature difference of the heat exchanger exceeds the preset temperature difference threshold; T 01i The inlet temperature of the heat exchange medium entering the heat exchanger corresponding to the i-th unit time when the inlet and outlet temperature difference experienced by the heat exchanger does not exceed the preset temperature difference threshold; T 02i The outlet temperature of the heat exchange medium leaving the heat exchanger corresponding to the i-th unit time when the inlet and outlet temperature difference experienced by the heat exchanger does not exceed the preset temperature difference threshold; T 01j Indicates the inlet temperature corresponding to the jth unit time when the inlet and outlet temperature difference experienced by the heat exchanger exceeds the preset temperature difference threshold; T 02j Indicates the outlet temperature corresponding to the jth unit time when the inlet and outlet temperature difference experienced by the heat exchanger exceeds the preset temperature difference threshold;

[0042] a pressure loss data extraction module, configured to extract pressure loss data included in the operating parameters of the heat exchanger;

[0043] The operating pressure evaluation coefficient acquisition module is used to obtain the operating pressure evaluation coefficient using the corresponding pressure loss data during the operation of the heat exchanger; wherein, the operating pressure evaluation coefficient is obtained by the following formula:

[0044]

[0045] Wherein, F represents the operating pressure evaluation coefficient; F y Indicates the preset pressure loss threshold; F p Indicates the average value of the current heat exchanger pressure loss; F max Indicates the maximum value of pressure loss during the operation of the heat exchanger;

[0046] a fluid flow data extraction module, configured to extract a fluid flow rate change rate included in the operating parameters of the heat exchanger;

[0047] The operation flow evaluation coefficient acquisition module is used to obtain the operation flow evaluation coefficient using the corresponding fluid flow change rate during the operation of the heat exchanger; wherein, the operation flow evaluation coefficient is obtained by the following formula:

[0048]

[0049] Where V represents the operating flow evaluation coefficient; k represents the number of unit times that the heat exchanger has experienced during operation; V i represents the fluid flow rate corresponding to the i-th unit time; V i-1 represents the fluid flow rate corresponding to the i-1th unit time; P min and P max They represent the minimum and maximum values ​​of the fluid flow rate change rate during the current heat exchanger operation; P v It represents the average value of the current heat exchanger fluid flow rate change rate; P represents the preset change rate threshold.

[0050] Beneficial effects of the present invention:

[0051] 1. The present invention improves refrigeration efficiency and performance by optimizing the design of the heat exchanger. The entire structure of the heat exchanger is made of high thermal conductivity materials such as aluminum alloy or copper alloy to improve heat conduction efficiency. The surface of the heat exchanger is specially treated with a coating or plating to enhance corrosion resistance and wear resistance. The heat exchanger adopts a composite flow channel design, which includes a straight flow channel section and a corrugated flow channel section. The refrigerant flows from the straight flow channel section to the corrugated flow channel section, which can increase the contact area between the refrigerant and the external environment, thereby improving the heat exchange efficiency, significantly increasing the heat exchange rate, and improving the cooling effect.

[0052] 2. The intelligent control system of the present invention has three adjustment modes: automatic mode, manual mode, and energy-saving mode. This allows the intelligent control system to dynamically adjust the working status of the compressor and heat exchanger according to different refrigeration needs, achieving precise temperature control and optimal energy utilization. The intelligent control system improves the convenience and safety of operation.

[0053] 3. The present invention can monitor the working status of the heat exchanger in real time through the detection module. When the detection module detects an abnormality in the heat exchanger, it will automatically issue an alarm to the user, making it convenient for the user to maintain and troubleshoot the heat exchanger according to the alarm. The abnormal detection of the heat exchanger by the detection module enables the refrigeration body to have a self-diagnosis function, making maintenance simple, thereby extending the service life of the refrigeration body. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] Figure 1 Schematic diagram of the external structure of the refrigeration unit in the present invention;

[0055] Figure 2 Schematic diagram of the internal structure of the refrigeration unit in the present invention;

[0056] Figure 3 Schematic diagram of the structure of the heat exchanger in the present invention;

[0057] Figure 4Schematic diagram of the structure of the composite flow channel in the present invention;

[0058] Figure 5 Schematic diagram of the decomposition structure of the intelligent control system in the present invention;

[0059] Figure 6 This is a workflow diagram of the intelligent control system in the present invention.

[0060] In the figure: 1. Refrigeration unit; 11. Air outlet; 12. Air inlet; 13. Smart panel; 2. Compressor; 3. Condenser; 4. Heat exchanger; 41. Housing; 42. Front cover; 43. Composite flow channel; 5. Evaporator; 6. Electrical control panel; 7. Smart control system. DETAILED DESCRIPTION

[0061] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0062] A refrigeration system with efficient heat exchange includes a refrigeration body 1. The interior of the refrigeration body 1 is provided with a compressor 2, a condenser 3, a heat exchanger 4, an evaporator 5 and an electrical control panel 6. The electrical control panel 6 is provided with an intelligent control system 7 for controlling various electrical appliances. The compressor 2 and the condenser 3 are located at the bottom of the interior of the refrigeration body 1, the evaporator 5 is located at the top of the interior of the refrigeration body 1, and the heat exchanger 4 is located between the condenser 3 and the evaporator 5. The compressor 2 compresses the refrigerant into a high-pressure saturated gas, and the compressed gaseous refrigerant is transported to the condenser 3 for condensation. The heat exchanger 4 performs heat exchange on the condensed refrigerant, and the refrigerant after heat exchange is passed into the evaporator 5. The evaporator 5 cools the medium to be cooled by the refrigerant for heat exchange.

[0063] An air outlet 11 is provided above the front of the refrigeration body 1, and an air inlet 12 is provided below the front of the refrigeration body 1. The air outlet 11 and the air inlet 12 are both connected to the interior of the refrigeration body 1. An intelligent panel 13 is provided on the front of the refrigeration body 1 and below the air outlet 11. The air outlet 11 is mainly used to blow the cold air processed by the refrigeration body 1 into the room to regulate the indoor temperature, while the air inlet 12 is used to suck fresh air from the outside into the refrigeration body 1, filter it, and then supply air through the indoor unit. The signal connection between the intelligent panel 13 and the intelligent control system 7 is connected.

[0064] The compressor 2 compresses the gaseous refrigerant into a high-temperature and high-pressure gaseous refrigerant, and then the gaseous refrigerant is sent to the condenser 3 for condensation. After the condenser 3 dissipates heat, it becomes a liquid refrigerant at room temperature and high pressure. The liquid refrigerant at room temperature and high pressure undergoes heat exchange by the heat exchanger 4, and then the liquid refrigerant at room temperature and high pressure is passed into the evaporator 5. The evaporator 5 can cool the medium that the refrigerant needs to cool and exchange heat. Since the space suddenly increases and the pressure decreases after the refrigerant reaches the evaporator 5 from the capillary tube, the liquid refrigerant will vaporize and become a gaseous low-temperature refrigerant, thereby absorbing a large amount of heat, and the evaporator 5 will become cold. The refrigeration body 1 uses the fan to blow the indoor air through the evaporator 5, so the refrigeration body 1 blows cold air into the room from the air outlet 11, thereby achieving a cooling effect. The intelligent control system 7 can be controlled by the intelligent panel 13. The user can select the adjustment mode of the refrigeration body 1 through the intelligent panel 13, and the user can manually set the temperature they need through the intelligent panel 13.

[0065] The heat exchanger 4 includes a shell 41. A front cover 42 is provided in front of the shell 41. The front cover 42 is fixedly connected to the shell 41 by bolts. Multiple rows of composite flow channels 43 are provided inside the shell 41. The overall structure of the heat exchanger 4 is made of a high thermal conductivity material of aluminum alloy or copper alloy. The surface of the overall structure of the heat exchanger 4 is specially treated with coating or plating. The composite flow channels 43 include a straight flow channel section and a corrugated flow channel section. The shell 41 and the front cover 42 of the heat exchanger 4 are fixedly connected by bolts, which facilitates the disassembly and installation of the heat exchanger 4 and the daily maintenance of the interior of the heat exchanger 4. Multiple rows of composite flow channels 43 are provided inside the shell 41. The heat exchanger 4 adopts a composite flow channel 43 design. The composite flow channels 43 include a straight flow channel section and a corrugated flow channel section. The refrigerant flows from the straight flow channel section to the corrugated flow channel section, which can increase the contact area between the refrigerant and the external environment, thereby improving the heat exchange efficiency of the heat exchanger 4. The present invention optimizes the design of the heat exchanger 4, which can improve The cooling efficiency and performance are improved while reducing energy consumption. Moreover, the overall structure of the heat exchanger 4 is made of a high thermal conductivity material of aluminum alloy or copper alloy. Aluminum alloy or copper alloy has good thermal conductivity. The heat exchanger 4 uses a high thermal conductivity material to improve the heat conduction efficiency of the heat exchanger 4. At the same time, the surface of the overall structure of the heat exchanger 4 is specially treated with a coating or plating. The special treatment of the surface of the heat exchanger 4 with a coating or plating can enhance the corrosion resistance and wear resistance of the heat exchanger 4, thereby extending the service life of the heat exchanger 4.

[0066] The intelligent control system 7 includes multiple adjustment modes for:

[0067] The adjustment mode is selected according to the cooling demand. Different adjustment modes are adjusted according to the changes in indoor and outdoor temperature, the temperature set by the user and the off-peak cooling demand period, and the working status of the compressor 2 and the heat exchanger 4 are adjusted according to different cooling demand dynamics.

[0068] Among them, the intelligent control system 7 includes:

[0069] Smart selection unit for:

[0070] The user selects different adjustment modes according to the cooling demand. Different adjustment modes have corresponding temperature settings. Specifically, the intelligent control unit adjusts according to the temperature settings corresponding to the indoor and outdoor temperature changes, the temperature set by the user, and the off-peak cooling demand period;

[0071] Intelligent control unit for:

[0072] The working states of the compressor 2 and the heat exchanger 4 are adjusted according to the indoor and outdoor temperature changes, the temperature set by the user, and the different cooling demand dynamics during the off-peak cooling demand period.

[0073] Among them, the intelligent control unit includes:

[0074] Detection module for:

[0075] Perform abnormality detection on the heat exchanger 4. Whenever the intelligent control unit controls and adjusts the heat exchanger 4, the detection module will detect the heat exchanger 4 and monitor the working status of the heat exchanger 4 in real time;

[0076] If the detection module does not detect any abnormality in the heat exchanger 4, the detection of the heat exchanger 4 continues;

[0077] If the detection module detects that the heat exchanger 4 is abnormal, an automatic alarm is issued to the user.

[0078] The user can use the smart panel 13 to select the adjustment mode of the refrigeration body 1 through the smart selection unit. The smart selection unit performs corresponding refrigeration control according to the adjustment mode selected by the user. Different adjustment modes correspond to corresponding refrigeration control settings, which are indoor and outdoor temperature changes, user-set temperatures, and off-peak refrigeration demand periods. The smart control unit adjusts the working states of the compressor 2 and the heat exchanger 4 according to the indoor and outdoor temperature changes, the user-set temperatures, and the different refrigeration demand dynamics during off-peak refrigeration demand periods. The smart control system 7 improves the convenience and safety of operation, achieves precise temperature control and optimal utilization of energy, and whenever the smart control unit controls and adjusts the heat exchanger 4, the detection module will detect the heat exchanger 4 and check the detected temperature. The measured data is analyzed to determine whether the heat exchanger 4 is abnormal based on the analysis results. If the detection module does not detect that the heat exchanger 4 is abnormal, the heat exchanger 4 continues to be detected. If the detection module detects that the heat exchanger 4 is abnormal, an automatic alarm is issued to the user, which is convenient for the user to maintain and troubleshoot the heat exchanger 4 according to the alarm. When the abnormality of the heat exchanger 4 is eliminated, the abnormality alarm of the heat exchanger 4 is immediately released, and the heat exchanger 4 continues to be detected in real time. The detection module can monitor the working status of the heat exchanger 4 in real time and automatically alarm when the heat exchanger 4 is detected to be abnormal. The abnormality detection of the heat exchanger 4 by the detection module enables the refrigeration body 1 to have a self-diagnosis function, which makes maintenance simple, thereby extending the service life of the refrigeration body 1.

[0079] The detection module further includes:

[0080] A real-time data acquisition module is used to collect operating parameters of the heat exchanger; wherein the operating parameters include inlet and outlet temperature data, pressure loss data and fluid flow rate change rate;

[0081] An evaluation coefficient acquisition module, configured to obtain an operating temperature evaluation coefficient, an operating pressure evaluation coefficient, and an operating flow evaluation coefficient corresponding to the operation of the heat exchanger using the inlet and outlet temperature data, the pressure loss data, and the fluid flow rate change rate;

[0082] An operation quality evaluation parameter acquisition module is used to obtain the operation quality evaluation parameters of the heat exchanger using the operation temperature evaluation coefficient, the operation pressure evaluation coefficient, and the operation flow evaluation coefficient; wherein the operation quality evaluation parameters are obtained by the following formula:

[0083]

[0084] Wherein, Q represents the operation quality evaluation parameter; Q0 represents the preset parameter reference value; exp() represents the exponential operation function; T represents the operation temperature evaluation coefficient; F represents the operation pressure evaluation coefficient; V represents the operation flow evaluation coefficient;

[0085] The abnormality determination module is used to determine that the heat exchanger is operating abnormally when the operation quality evaluation parameter is lower than a preset quality evaluation parameter threshold.

[0086] The real-time data acquisition module collects real-time operating parameters of the heat exchanger, including inlet and outlet temperature data, pressure loss data, and fluid flow rate change rate. These parameters comprehensively reflect the operating status and performance of the heat exchanger. The evaluation coefficient acquisition module uses these collected operating parameters to calculate the operating temperature evaluation coefficient, operating pressure evaluation coefficient, and operating flow evaluation coefficient during the heat exchanger's operation. These evaluation coefficients reflect the heat exchanger's performance in terms of temperature, pressure, and flow, respectively.

[0087] The operational quality evaluation parameter acquisition module calculates the heat exchanger's operational quality evaluation parameters by comprehensively considering the operating temperature evaluation coefficient, the operating pressure evaluation coefficient, and the operating flow evaluation coefficient. These parameters comprehensively assess the heat exchanger's operating status and performance, providing a basis for subsequent abnormality determination. The abnormality determination module compares the operational quality evaluation parameters with preset quality evaluation parameter thresholds. If the operational quality evaluation parameters fall below the threshold, the heat exchanger is deemed to be operating abnormally. This function enables timely identification of potential heat exchanger issues, preventing production accidents or losses caused by equipment failure.

[0088] By collecting heat exchanger operating parameters in real time and performing comprehensive evaluation and abnormality detection, this invention enables real-time monitoring and early warning of heat exchanger operating conditions, improving equipment reliability and safety and reducing production risks. Furthermore, this invention offers high flexibility and scalability, allowing customization and optimization based on actual needs.

[0089] The evaluation coefficient acquisition module includes:

[0090] an inlet and outlet temperature data extraction module, used to extract the inlet and outlet temperature data included in the operating parameters of the heat exchanger;

[0091] The operating temperature evaluation coefficient acquisition module is used to obtain the operating temperature evaluation coefficient using the corresponding inlet and outlet temperature data during the operation of the heat exchanger; wherein, the operating temperature evaluation coefficient is obtained by the following formula:

[0092]

[0093]

[0094]

[0095] Where, T represents the operating temperature evaluation coefficient; In represents the natural logarithm function; t 01 and t02 Respectively represent the first dynamic regulation factor and the second dynamic regulation factor; T y represents the preset temperature difference threshold; Tc represents the current inlet and outlet temperature difference value of the heat exchanger; n represents the number of unit times during which the inlet and outlet temperature difference of the heat exchanger does not exceed the preset temperature difference threshold, and the value range of the unit time is 1s-3s; m represents the number of unit times during which the inlet and outlet temperature difference of the heat exchanger exceeds the preset temperature difference threshold; T 01i The inlet temperature of the heat exchange medium entering the heat exchanger corresponding to the i-th unit time when the inlet and outlet temperature difference experienced by the heat exchanger does not exceed the preset temperature difference threshold; T 02i The outlet temperature of the heat exchange medium leaving the heat exchanger corresponding to the i-th unit time when the inlet and outlet temperature difference experienced by the heat exchanger does not exceed the preset temperature difference threshold; T 01j Indicates the inlet temperature corresponding to the jth unit time when the inlet and outlet temperature difference experienced by the heat exchanger exceeds the preset temperature difference threshold; T 02j Indicates the outlet temperature corresponding to the jth unit time when the inlet and outlet temperature difference experienced by the heat exchanger exceeds the preset temperature difference threshold;

[0096] a pressure loss data extraction module, configured to extract pressure loss data included in the operating parameters of the heat exchanger;

[0097] The operating pressure evaluation coefficient acquisition module is used to obtain the operating pressure evaluation coefficient using the corresponding pressure loss data during the operation of the heat exchanger; wherein, the operating pressure evaluation coefficient is obtained by the following formula:

[0098]

[0099] Wherein, F represents the operating pressure evaluation coefficient; F y Indicates the preset pressure loss threshold; F p Indicates the average value of the current heat exchanger pressure loss; F max Indicates the maximum value of pressure loss during the operation of the heat exchanger;

[0100] a fluid flow data extraction module, configured to extract a fluid flow rate change rate included in the operating parameters of the heat exchanger;

[0101] The operation flow evaluation coefficient acquisition module is used to obtain the operation flow evaluation coefficient using the corresponding fluid flow change rate during the operation of the heat exchanger; wherein, the operation flow evaluation coefficient is obtained by the following formula:

[0102]

[0103] Where V represents the operating flow evaluation coefficient; k represents the number of unit times that the heat exchanger has experienced during operation; V i represents the fluid flow rate corresponding to the i-th unit time; V i-1 represents the fluid flow rate corresponding to the i-1th unit time; P min and P max They represent the minimum and maximum values ​​of the fluid flow rate change rate during the current heat exchanger operation; P v It represents the average value of the current heat exchanger fluid flow rate change rate; P represents the preset change rate threshold.

[0104] The present invention extracts the inlet and outlet temperature data, pressure loss data and fluid flow rate change rate of the heat exchanger and uses these data to perform refined evaluation, which can accurately reflect the performance status of the heat exchanger at different operating stages. When calculating the operating temperature evaluation coefficient, the first dynamic adjustment factor t is introduced. 01 and the second dynamic regulatory factor t 02 These two factors can be dynamically adjusted based on the heat exchanger's actual operating conditions and historical data, making the evaluation more accurate and flexible. Furthermore, by comprehensively evaluating three key parameters: inlet and outlet temperature difference, pressure loss, and fluid flow rate change, anomalies that may arise during heat exchanger operation, such as blockages, leaks, and performance degradation, can be promptly detected. The calculation formulas for each evaluation coefficient take into account multiple factors during heat exchanger operation, such as historical data, current status, and preset thresholds, thereby improving the accuracy of anomaly warnings.

[0105] Furthermore, the present invention enables real-time data collection and evaluation, allowing for flexible adjustments based on actual needs, such as modifying preset thresholds and adjusting unit time. By monitoring and evaluating the heat exchanger's operating status in real time, potential issues can be promptly identified and addressed, preventing equipment failures, extending equipment life, and reducing maintenance costs. Real-time monitoring of the heat exchanger and providing early warning of abnormalities ensures the continuity and stability of the production process, improving production efficiency while reducing the risk of production accidents.

[0106] In summary, the present invention can achieve real-time monitoring and early warning of the operating status of the heat exchanger through refined operating parameter evaluation and comprehensive anomaly detection, improve the reliability and safety of the equipment, reduce production risks, optimize equipment maintenance and management, and improve production efficiency and economic benefits.

[0107] The adjustment mode of the intelligent selection unit is divided into the following three situations:

[0108] Automatic mode includes a temperature sensor that monitors indoor and outdoor temperatures in real time, obtains real-time indoor and outdoor temperature data, analyzes indoor and outdoor temperature changes based on the real-time temperature data, and enables the intelligent control unit to automatically adjust the operating speed of the compressor 2 and the working state of the heat exchanger 4 according to the indoor and outdoor temperature changes;

[0109] Manual mode: the user manually sets the temperature, and the intelligent control unit automatically adjusts the operating speed of the compressor 2 and the working state of the heat exchanger 4 according to the temperature manually set by the user;

[0110] In the energy-saving mode, a non-peak cooling demand period is pre-set, and the intelligent control unit reduces the operating frequency of the compressor 2 and the working efficiency of the heat exchanger 4 according to the set non-peak cooling demand period.

[0111] When the user selects the automatic mode, the automatic mode uses the temperature sensor to monitor the indoor and outdoor temperatures in real time, thereby obtaining real-time indoor and outdoor temperature data, and then through the analysis of the real-time temperature data, it can obtain the indoor and outdoor temperature changes, so that the intelligent control unit can automatically adjust the operating speed of the compressor 2 and the working state of the heat exchanger 4 according to the indoor and outdoor temperature changes;

[0112] When the user selects the manual mode, the user can set the temperature through the smart panel 13, so that the intelligent control unit automatically adjusts the operating speed of the compressor 2 and the working state of the heat exchanger 4 according to the temperature set by the user. In the manual mode, the user can set the temperature at any time, and the intelligent control unit adjusts the compressor 2 and the heat exchanger 4 according to the temperature set by the user in real time;

[0113] When the user selects the energy-saving mode, the off-peak cooling demand period needs to be pre-set in the energy-saving mode, so that the intelligent control unit can reduce the operating frequency of the compressor 2 and the working efficiency of the heat exchanger 4 according to the set off-peak cooling demand period, thereby reducing energy consumption during the off-peak cooling demand period.

[0114] The working principle of the refrigeration system of the present invention is as follows: the compressor 2 compresses the gaseous refrigerant into a high-temperature and high-pressure gaseous refrigerant, and then the gaseous refrigerant is sent to the condenser 3 for condensation. After the condenser 3 dissipates heat, it becomes a liquid refrigerant at room temperature and high pressure. The liquid refrigerant at room temperature and high pressure is heat exchanged by the heat exchanger 4. The composite flow channel 43 includes a straight channel section and a corrugated flow channel section. The refrigerant flows from the straight channel section to the corrugated flow channel section, which can increase the contact area between the refrigerant and the external environment, thereby improving the heat exchange efficiency of the heat exchanger 4. By optimizing the design of the heat exchanger 4, the refrigeration efficiency and performance can be improved, and the energy consumption can be reduced. Then, the liquid refrigerant at room temperature and high pressure is passed into the evaporator 5. The medium to be cooled by the refrigerant can be cooled and heat exchanged through the evaporator 5. The intelligent control system 7 can be controlled through the intelligent panel 13. The user can select different adjustment modes according to the cooling demand through the intelligent selection unit. Different adjustment modes correspond to different temperature settings. According to the mode selected by the user, the intelligent control unit is adjusted according to the corresponding temperature setting, that is, the working state of the compressor 2 and the heat exchanger 4 is adjusted according to the changes in indoor and outdoor temperatures, the temperature set by the user, and the different cooling demand dynamics during non-peak cooling demand periods, so as to achieve precise temperature control and optimal energy utilization through the intelligent control system 7. At the same time, the intelligent control system 7 also has an abnormality detection function, which can detect abnormalities in the heat exchanger 4 in real time and automatically alarm when an abnormality is detected, so as to facilitate the user to maintain and troubleshoot the heat exchanger 4.

[0115] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0116] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A refrigeration system with high efficiency heat exchange, comprising a refrigeration body (1), characterized in that: The refrigeration machine body (1) is provided with a compressor (2), a condenser (3), a heat exchanger (4), an evaporator (5) and an electrical appliance control panel (6), and the electrical appliance control panel (6) is provided with an intelligent control system (7) for controlling various electrical appliances; The compressor (2) compresses the refrigerant into a high-pressure saturated gas, and the compressed gaseous refrigerant is transported to the condenser (3) for condensation. The heat exchanger (4) performs heat exchange on the condensed refrigerant, and the refrigerant after the heat exchange is passed into the evaporator (5). The evaporator (5) cools the medium to be cooled by the refrigerant for heat exchange. The intelligent control system (7) includes multiple adjustment modes for: Selecting an adjustment mode according to the cooling demand, the different adjustment modes are adjusted according to the indoor and outdoor temperature changes, the temperature set by the user and the non-peak cooling demand period, and the working state of the compressor (2) and the heat exchanger (4) is adjusted according to the different cooling demand dynamics; The intelligent control system (7) comprises: Smart selection unit for: The user selects different adjustment modes according to the cooling demand. Different adjustment modes have corresponding temperature settings, specifically indoor and outdoor temperature changes, user-set temperatures, and off-peak cooling demand periods. The intelligent control unit adjusts according to the temperature settings corresponding to different adjustment modes; Intelligent control unit for: Adjusting the working state of the compressor (2) and the heat exchanger (4) according to the indoor and outdoor temperature changes, the temperature set by the user and the different cooling demand dynamics during the non-peak cooling demand period; The intelligent control unit comprises: Detection module for: Performing abnormality detection on the heat exchanger (4), each time the intelligent control unit controls and adjusts the heat exchanger (4), the detection module will detect the heat exchanger (4) and monitor the working state of the heat exchanger (4) in real time; If the detection module does not detect that the heat exchanger (4) is abnormal, the heat exchanger (4) continues to be detected; If the detection module detects that the heat exchanger (4) is abnormal, an automatic alarm is issued to the user; The detection module further includes: A real-time data collection module is used to collect operating parameters of the heat exchanger; wherein the operating parameters include inlet and outlet temperature data, pressure loss data and fluid flow rate change rate; An evaluation coefficient acquisition module, used to obtain the corresponding operating temperature evaluation coefficient, operating pressure evaluation coefficient and operating flow evaluation coefficient during the operation of the heat exchanger by using the inlet and outlet temperature data, pressure loss data and fluid flow rate change rate; The operation quality evaluation parameter acquisition module is used to obtain the operation quality evaluation parameters of the heat exchanger by using the operation temperature evaluation coefficient, the operation pressure evaluation coefficient and the operation flow evaluation coefficient; wherein the operation quality evaluation parameters are obtained by the following formula: Wherein, Q represents the operation quality evaluation parameter; Q0 represents the preset parameter reference value; exp() represents the exponential operation function; T represents the operation temperature evaluation coefficient; F represents the operation pressure evaluation coefficient; V represents the operation flow evaluation coefficient; an abnormality determination module, configured to determine that the heat exchanger is operating abnormally when the operating quality evaluation parameter is lower than a preset quality evaluation parameter threshold; The evaluation coefficient acquisition module includes: An inlet and outlet temperature data extraction module, used to extract the inlet and outlet temperature data included in the operating parameters of the heat exchanger; The operating temperature evaluation coefficient acquisition module is used to obtain the operating temperature evaluation coefficient using the corresponding inlet and outlet temperature data during the operation of the heat exchanger; wherein the operating temperature evaluation coefficient is obtained by the following formula: Where, T represents the operating temperature evaluation coefficient; In represents the natural logarithmic function; t 01 and t 02 Respectively represent the first dynamic adjustment factor and the second dynamic adjustment factor; Ty represents the preset temperature difference threshold; Tc represents the inlet and outlet temperature difference value of the current heat exchanger; n represents the number of unit times during which the inlet and outlet temperature difference of the heat exchanger does not exceed the preset temperature difference threshold, and the value range of the unit time is 1s-3s; m represents the number of unit times during which the inlet and outlet temperature difference of the heat exchanger exceeds the preset temperature difference threshold; T 01i Indicates the inlet temperature of the heat exchange medium entering the heat exchanger corresponding to the i-th unit time when the inlet and outlet temperature difference experienced by the heat exchanger during operation does not exceed the preset temperature difference threshold; T 02i Indicates the outlet temperature of the heat exchange medium leaving the heat exchanger corresponding to the i-th unit time when the inlet and outlet temperature difference experienced by the heat exchanger during operation does not exceed the preset temperature difference threshold; T 01j Indicates the inlet temperature corresponding to the jth unit time when the inlet and outlet temperature difference experienced by the heat exchanger exceeds the preset temperature difference threshold; T 02j Indicates the outlet temperature corresponding to the jth unit time when the inlet and outlet temperature difference experienced by the heat exchanger during operation exceeds the preset temperature difference threshold; A pressure loss data extraction module, used to extract the pressure loss data included in the operating parameters of the heat exchanger; The operating pressure evaluation coefficient acquisition module is used to obtain the operating pressure evaluation coefficient using the corresponding pressure loss data during the operation of the heat exchanger; wherein the operating pressure evaluation coefficient is obtained by the following formula: Wherein, F represents the operating pressure evaluation coefficient; F y Indicates the preset pressure loss threshold; F p Indicates the average value of the current heat exchanger pressure loss; F max Indicates the maximum value of pressure loss that occurs during the operation of the heat exchanger; A fluid flow data extraction module, used to extract the fluid flow rate change rate included in the operating parameters of the heat exchanger; The operation flow evaluation coefficient acquisition module is used to obtain the operation flow evaluation coefficient by using the corresponding fluid flow change rate during the operation of the heat exchanger; wherein the operation flow evaluation coefficient is obtained by the following formula: Wherein, V represents the operating flow evaluation coefficient; k represents the number of unit times that the heat exchanger has experienced during operation; V i represents the fluid flow rate corresponding to the i-th unit time; V i-1 represents the fluid flow rate corresponding to the i-1th unit time; P min and P max They represent the minimum and maximum values ​​of the fluid flow rate change rate during the operation of the current heat exchanger; P v represents the average value of the current heat exchanger fluid flow rate change rate; P represents the preset change rate threshold.

2. A refrigeration system with high efficiency heat exchange according to claim 1, characterized in that: The compressor (2) and the condenser (3) are located at the bottom of the refrigeration machine body (1), the evaporator (5) is located at the top of the refrigeration machine body (1), and the heat exchanger (4) is located between the condenser (3) and the evaporator (5).

3. A refrigeration system with high efficiency heat exchange according to claim 2, characterized in that: An air outlet (11) is provided above the front of the refrigeration body (1), and an air inlet (12) is provided below the front of the refrigeration body (1); the air outlet (11) and the air inlet (12) are both connected to the interior of the refrigeration body (1); an intelligent panel (13) is provided on the front of the refrigeration body (1) and below the air outlet (11); and a signal connection is established between the intelligent panel (13) and the intelligent control system (7).

4. A refrigeration system with high efficiency heat exchange according to claim 3, characterized in that: The heat exchanger (4) comprises a shell (41), a front cover (42) is provided in front of the shell (41), the front cover (42) is fixedly connected to the shell (41) by bolts, and a plurality of rows of composite flow channels (43) are provided inside the shell (41).

5. A refrigeration system with high efficiency heat exchange according to claim 4, characterized in that: The heat exchanger (4) is made of a material with high thermal conductivity such as an aluminum alloy or a copper alloy. The surface of the heat exchanger (4) is specially treated with a coating or plating. The composite flow channel (43) includes a straight flow channel section and a corrugated flow channel section. The refrigerant flows from the straight flow channel section to the corrugated flow channel section.

6. A refrigeration system with high efficiency heat exchange according to claim 5, characterized in that: The adjustment mode of the intelligent selection unit is divided into the following three cases: The automatic mode includes a temperature sensor, which monitors indoor and outdoor temperatures in real time through the temperature sensor to obtain indoor and outdoor real-time temperature data, analyzes indoor and outdoor temperature changes based on the real-time temperature data, and enables the intelligent control unit to automatically adjust the operating speed of the compressor (2) and the working state of the heat exchanger (4) according to the indoor and outdoor temperature changes; In manual mode, the user manually sets the temperature, and the intelligent control unit automatically adjusts the operating speed of the compressor (2) and the working state of the heat exchanger (4) according to the temperature manually set by the user; In the energy-saving mode, a non-peak cooling demand period is preset, and according to the set non-peak cooling demand period, the intelligent control unit reduces the operating frequency of the compressor (2) and the working efficiency of the heat exchanger (4).

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