A system and method for identifying fault status of a cooling and heating cogeneration device

Abstract

The present invention discloses a fault state identification system and method for a combined cooling and heating device, comprising a data acquisition system, a data processing module and an information sending module; the data acquisition system is used to collect pipeline information, refrigeration-related information, heating-related information, sensor-related information, external environment information and maintenance information of the combined cooling and heating device; the data processing module is used to process the pipeline information, refrigeration-related information, heating-related information, sensor-related information, external environment information and maintenance information of the combined cooling and heating device collected by the data acquisition system, and obtain pipeline fault information, refrigeration fault information, heating fault information, sensor fault information, external environment warning information and maintenance warning information. The present invention can perform more comprehensive fault state identification of the combined cooling and heating device, ensuring that the combined cooling and heating device can operate more safely and stably.

Description

Technical Field

[0001] The invention relates to the field of state recognition systems, and in particular to a system and method for identifying a fault state of a cooling and heating cogeneration device. Background Art

[0002] A combined cooling, heating and power plant (also called a combined cooling, heating and power system or CCHP system) is an efficient energy utilization technology that can provide cooling, heating and electricity at the same time;

[0003] During the actual use of the cogeneration device, it is necessary to monitor its safety and timely discover and identify possible problems and faults. In the process of discovering and identifying problems and faults of the cogeneration device, the cogeneration device fault status identification system and method will be used.

[0004] The existing fault state identification system and method of the combined cooling and heating device have low recognition accuracy and single recognition type, which cannot meet the actual use requirements, and has a certain impact on the fault state identification system and method of the combined cooling and heating device. Therefore, a fault state identification system and method of the combined cooling and heating device are proposed. Summary of the invention

[0005] The technical problem to be solved by the present invention is: how to solve the problem that the existing system and method for identifying the fault state of a cooling and heating cogeneration device have low recognition accuracy and a single recognition type, which cannot meet the actual use requirements and has a certain impact on the system and method for identifying the fault state of a cooling and heating cogeneration device. A system and method for identifying the fault state of a cooling and heating cogeneration device are provided.

[0006] The present invention solves the above technical problems through the following technical solutions. The present invention includes a data acquisition system, a data processing module and an information sending module;

[0007] The data acquisition system includes a pipeline information acquisition module, a refrigeration related information acquisition module, a heating related information acquisition module, a sensor acquisition module, a maintenance acquisition module and an external environment acquisition module;

[0008] The pipeline information collection module is used to collect pipeline information of the cooling and heating cogeneration device;

[0009] The refrigeration related information collection module is used to collect refrigeration related information of the cooling and heating cogeneration device;

[0010] The heating related information collection module is used to collect heating related information of the cooling and heating cogeneration device;

[0011] The sensor acquisition module is used to collect sensor-related information of the cooling and heating cogeneration device;

[0012] The external environment acquisition module is used to collect external environment information of the cooling and heating cogeneration device;

[0013] The maintenance information collection module is used to collect maintenance information of the cooling and heating cogeneration device;

[0014] The data processing module is used to process the pipeline information, refrigeration related information, heating related information, sensor related information, external environment information and maintenance information of the cooling and heating cogeneration device, and obtain pipeline fault information, refrigeration fault information, heating fault information, sensor fault information, external environment warning information and maintenance warning information;

[0015] The information sending module is used to send the pipeline fault information, refrigeration fault information, heating fault information, sensor fault information, external pipe warning information and maintenance warning information to a preset receiving terminal after the above information is generated.

[0016] Furthermore, the specific processing process of the pipeline fault information is as follows:

[0017] Extract the collected pipeline information of the cooling and heating cogeneration device, the pipeline information of the cooling and heating cogeneration device includes flow information in the pipeline, pressure information in the pipeline, external information of the pipeline and pipeline valve information;

[0018] Process the flow information in the pipeline to obtain the pipeline flow evaluation parameters, process the pressure information in the pipeline to obtain the pipeline pressure evaluation parameters, process the external information of the pipeline to obtain the external evaluation parameters of the pipeline, and process the pipeline valve to obtain the valve evaluation parameters;

[0019] When any one of the pipeline flow evaluation parameters, pipeline internal pressure evaluation parameters, pipeline external evaluation parameters and valve evaluation parameters is abnormal, pipeline fault information is generated.

[0020] Furthermore, the specific processing process and abnormality determination process of the pipeline flow evaluation parameter are as follows: extract the flow information in the pipeline, collect the flow information in the pipeline once every preset time, continuously collect the flow information in the pipeline m times, calculate the difference between the m times of the flow information in the pipeline and the preset standard flow information in the pipeline, obtain m evaluation differences, extract the number of the m evaluation differences that is less than the preset value, that is, obtain the pipeline flow evaluation parameter, and when the pipeline flow evaluation parameter is greater than m / 3, it indicates that it is abnormal;

[0021] The specific processing process and abnormality determination process of the pipeline pressure assessment parameter are as follows: extract the collected pipeline pressure information, calculate the difference between the pipeline pressure and the preset standard pressure to obtain the pipeline pressure assessment parameter, and when the pipeline pressure assessment parameter exceeds the preset range, it indicates that there is an abnormality;

[0022] The specific processing process and abnormality determination process of the pipeline external evaluation parameters are as follows: extracting pipeline external information, which is pipeline external image information, obtaining clear image information after clarifying the pipeline external impact information, and processing the clear image to obtain two edge lines and a center line of the pipeline;

[0023] Then, at least f evaluation points are selected from the center line, and perpendicular lines are drawn to the two edge lines with the evaluation points as endpoints to obtain two evaluation lines, that is, to obtain a single-point evaluation group, and the lengths of the two evaluation lines of the f single-point evaluation groups are measured, that is, to obtain the external evaluation parameters of the pipeline;

[0024] When the difference between the lengths of the two assessment lines of any assessment group in the f single-point assessment groups is a non-zero value, it means that the external assessment parameters of the pipeline are abnormal;

[0025] The specific processing process and abnormality determination process of the valve evaluation parameters are as follows: extracting the collected pipeline valve information, the pipeline valve information is the number of valve rotations from the valve opening to the maximum position and the number of valve rotations from the valve closing to the minimum position;

[0026] The standard opening count and the standard closing count are set, and the difference between the valve rotation count when the valve is opened to the maximum position and the standard opening count is calculated to obtain the opening assessment difference. The difference between the valve rotation count when the valve is closed to the minimum position and the standard closing count is calculated to obtain the closing assessment difference. The opening assessment difference and the closing assessment difference constitute the valve assessment parameters. If either the opening assessment difference or the closing assessment difference exceeds the preset range, it means that the valve assessment parameters are abnormal.

[0027] Furthermore, the specific processing process of the refrigeration fault information is as follows: extracting the collected refrigeration related information of the cooling and heating cogeneration device, the refrigeration related information of the cooling and heating cogeneration device including the refrigeration system pressure difference information and the compressor status information of the refrigeration system;

[0028] Analyze the refrigeration system pressure difference information. When the refrigeration system pressure difference is the pressure difference between the refrigeration system and the outside, when the pressure difference between the refrigeration system and the outside is less than a preset value, it indicates that it is abnormal and generates refrigeration fault information;

[0029] Then analyzing the compressor status information of the refrigeration system, the compressor status information of the refrigeration system includes the compressor efficiency information and the compressor operating current information of the refrigeration system;

[0030] When the compressor efficiency information is less than the preset value and there is no abnormality in the refrigerant supply, a refrigeration fault message is generated;

[0031] When the compressor operating current information is greater than the preset value and there is no abnormality in the refrigerant supply, a refrigeration fault message is generated.

[0032] Furthermore, the specific processing process of the heating fault information is as follows:

[0033] Extract the collected heating related information of the cooling and heating cogeneration device, the heating related information of the cooling and heating cogeneration device includes resistance wire resistance information, temperature control system information, power supply information and filter network information;

[0034] Analyze the resistance value information of the resistance wire, and when the resistance value of the resistance wire is less than the preset standard value, generate heating fault information;

[0035] Analyze the temperature control system information, which is the set temperature of the temperature control system. When the set temperature of the temperature control system does not match the actual need, heating fault information is generated;

[0036] Analyze the power supply information, and when the power supply stability is less than a preset value for more than a preset time, generate heating fault information;

[0037] The filter information is analyzed, the filter information is the filter cleaning frequency information, and when the filter cleaning frequency is less than a preset value, heating fault information is generated.

[0038] Furthermore, the specific processing process of the external environment warning information is as follows: extracting the external environment information collected from the cooling and heating cogeneration device, the external environment information of the cooling and heating cogeneration device including environmental temperature information, environmental humidity information, air dust concentration information and cooling water quality information;

[0039] Analyze the ambient temperature information and obtain ambient temperature evaluation parameters;

[0040] Analyze the environmental humidity information and obtain environmental humidity assessment parameters;

[0041] Analyze the air dust concentration information to obtain environmental dust assessment parameters;

[0042] Analyze cooling water quality information and obtain water quality assessment parameters;

[0043] When any one of the environmental temperature assessment parameters, environmental humidity assessment parameters, environmental dust assessment parameters and water quality assessment parameters is abnormal, an external environment warning message is generated.

[0044] Furthermore, the acquisition and abnormality determination process of the environmental temperature assessment parameter, the environmental humidity assessment parameter, the environmental dust assessment parameter and the water quality assessment parameter is as follows:

[0045] Extract the ambient temperature information, continuously collect the ambient temperature information q times within a preset time, record the number of times the ambient temperature information exceeds the preset temperature range, and obtain the ambient temperature evaluation parameter. If the ambient temperature evaluation parameter is greater than the preset value, it indicates that it is abnormal;

[0046] Extracting environmental humidity information, continuously collecting environmental humidity information g times within a preset time, extracting the number of times the environmental humidity information is greater than the preset humidity among the g times, that is, obtaining an environmental humidity evaluation parameter, and when the environmental humidity evaluation parameter is greater than the preset value, it indicates that it is abnormal;

[0047] Extract the air dust concentration information, record the duration when the air dust concentration information is greater than the preset value, and obtain the environmental dust assessment parameter. When the environmental dust assessment parameter is greater than the preset value for a certain period of time, it indicates that there is an abnormality.

[0048] The cooling water quality information is extracted, and the difference between it and the standard water quality information is calculated to obtain the water quality difference, that is, the water quality assessment parameter. When the water quality assessment parameter is less than the preset value, it indicates that there is an abnormality.

[0049] Furthermore, a specific processing procedure of the maintenance warning information is as follows: the collected maintenance information of the cogeneration device is extracted, the maintenance information of the cogeneration device is the maintenance history record information of the cogeneration device, the maintenance history record information is processed to obtain average maintenance interval information, and then the usage time of the cogeneration device is uploaded to a preset database, and the standard maintenance interval of the cogeneration device with the corresponding usage time is collected from the preset database; when the average maintenance interval information is less than the standard maintenance interval of the cogeneration device, maintenance warning information is generated.

[0050] Furthermore, the specific processing process of the sensor fault information is as follows: extracting the collected sensor-related information of the cooling and heating cogeneration device, the sensor-related information of the cooling and heating cogeneration device including sensor position information, connection tightness between the sensor and the installation surface, and overload carrying time information;

[0051] When the deviation between the sensor position information and the preset standard position is greater than a preset value, sensor fault information is generated;

[0052] When the connection tightness between the sensor and the mounting surface is less than a preset value, sensor fault information is generated;

[0053] When the overload carrying time information is greater than a preset value, sensor fault information is generated.

[0054] A method for identifying a fault state of a cooling and heating cogeneration device comprises the following steps:

[0055] Step 1: Collect pipeline information of the combined cooling and heating unit;

[0056] Step 2: Collect refrigeration-related information of the combined cooling and heating device;

[0057] Step 3: Collect heating related information of the cooling and heating cogeneration device;

[0058] Step 4: Sensor related information of the combined cooling and heating device;

[0059] Step 5: Collect external environment information of the cooling and heating cogeneration device;

[0060] Step 6: Collect maintenance information of the cooling and heating cogeneration device;

[0061] Step 7: Process the pipeline information, refrigeration related information, heating related information, sensor related information, external environment information and maintenance information of the cooling and heating cogeneration device to obtain pipeline fault information, refrigeration fault information, heating fault information, sensor fault information, external environment warning information and maintenance warning information;

[0062] Step 8: After the pipeline fault information, refrigeration fault information, heating fault information, sensor fault information, external pipe warning information and maintenance warning information are generated, the above information is sent to the preset receiving terminal.

[0063] Compared with the prior art, the present invention has the following advantages: the fault state identification system and method of the combined heat and cold production device conducts comprehensive fault monitoring and identification of the combined heat and cold production device, and conducts fault monitoring of the pipeline flow, the pressure inside the pipeline, the pipeline surface and the pipeline valve, which can improve the safety and stability of the combined heat and cold production device, reduce maintenance costs, optimize resource allocation, and improve management efficiency. By monitoring and discovering the refrigeration information of the combined heat and cold production device, that is, the compressor information, it is possible to prevent major accidents, early detection and early warning, timely alarm and interlocking, improve production efficiency, reduce maintenance costs, improve equipment reliability and realize intelligent management. The heating resistor wire fault monitoring of the combined heat and cold production device is of great significance for improving equipment reliability, extending equipment service life, reducing maintenance costs, improving production efficiency and realizing intelligent management. It can also timely discover the environmental state of the combined heat and cold production device, and conduct warning and regulation to avoid environmental problems causing faults, making the system and method more worthy of popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] Figure 1 is a system block diagram of the present invention;

[0065] Figure 2 It is the pipeline image analysis diagram of the present invention. DETAILED DESCRIPTION

[0066] The following is a detailed description of an embodiment of the present invention. This embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation method and a specific operation process are given, but the protection scope of the present invention is not limited to the following embodiment.

[0067] like Figures 1-2 As shown, this embodiment provides a technical solution: a fault state identification system for a cooling and heating cogeneration device, including a data acquisition system, a data processing module and an information sending module;

[0068] The data acquisition system includes a pipeline information acquisition module, a refrigeration related information acquisition module, a heating related information acquisition module, a sensor acquisition module, a maintenance acquisition module and an external environment acquisition module;

[0069] The pipeline information collection module is used to collect pipeline information of the cooling and heating cogeneration device;

[0070] The refrigeration related information collection module is used to collect refrigeration related information of the cooling and heating cogeneration device;

[0071] The heating related information collection module is used to collect heating related information of the cooling and heating cogeneration device;

[0072] The sensor acquisition module is used to collect sensor-related information of the cooling and heating cogeneration device;

[0073] The external environment acquisition module is used to collect the external environment information of the cooling and heating cogeneration device;

[0074] The maintenance information collection module is used to collect the maintenance information of the cooling and heating cogeneration device;

[0075] The data processing module is used to process the pipeline information, refrigeration related information, heating related information, sensor related information, external environment information and maintenance information of the cooling and heating cogeneration device, and obtain pipeline fault information, refrigeration fault information, heating fault information, sensor fault information, external environment warning information and maintenance warning information;

[0076] The information sending module is used to send the pipeline fault information, refrigeration fault information, heating fault information, sensor fault information, external pipe warning information and maintenance warning information to a preset receiving terminal after the above information is generated;

[0077] The present invention performs comprehensive fault monitoring and identification on the combined cooling and heating device, performs fault monitoring on the pipeline flow, the pressure inside the pipeline, the pipeline surface and the pipeline valve, thereby improving the safety and stability of the combined cooling and heating device, reducing maintenance costs, optimizing resource allocation, and improving management efficiency. By monitoring and discovering refrigeration information of the combined cooling and heating device, that is, compressor information, it is possible to prevent major accidents, early detection and early warning, timely alarm and interlocking, improve production efficiency, reduce maintenance costs, improve equipment reliability and realize intelligent management. The heating resistor wire fault monitoring of the combined cooling and heating device is of great significance in improving equipment reliability, extending equipment service life, reducing maintenance costs, improving production efficiency and realizing intelligent management. It can also timely discover the environmental status of the combined cooling and heating device, and conduct warning and regulation to avoid failures caused by environmental problems.

[0078] The specific processing process of pipeline fault information is as follows:

[0079] Extract the collected pipeline information of the cooling and heating cogeneration device, the pipeline information of the cooling and heating cogeneration device includes flow information in the pipeline, pressure information in the pipeline, external information of the pipeline and pipeline valve information;

[0080] Process the flow information in the pipeline to obtain the pipeline flow evaluation parameters, process the pressure information in the pipeline to obtain the pipeline pressure evaluation parameters, process the external information of the pipeline to obtain the external evaluation parameters of the pipeline, and process the pipeline valve to obtain the valve evaluation parameters;

[0081] When any one of the pipeline flow evaluation parameter, pipeline internal pressure evaluation parameter, pipeline external evaluation parameter and valve evaluation parameter is abnormal, pipeline fault information is generated;

[0082] Through the above process, it is possible to understand and discover pipeline faults in a timely manner. Monitoring pipeline flow and real-time monitoring of pipeline flow helps to accurately grasp the water flow situation and provide data support for optimizing water supply strategies, thereby improving the operational efficiency of the entire water system. Timely detection of abnormalities: When pipeline flow is abnormal, the monitoring system can immediately issue an alarm and provide timely warnings to help managers quickly locate the problem and take measures. When the pipeline flow becomes smaller, it means that there may be a blockage, so the blockage needs to be eliminated in a timely manner;

[0083] By analyzing the pressure information in the pipeline and discovering faults in time, pipeline rupture can be prevented: real-time monitoring of pressure changes in the pipeline can promptly detect excessive pressure, so that measures can be taken to reduce pressure, prevent pipeline rupture, and reduce safety risks.

[0084] By analyzing the outside of the pipeline, we can know whether the pipeline is deformed, and then detect various problems in the pipeline, such as corrosion, damage, etc., saving detection time and cost;

[0085] By monitoring the pipeline valves and timely discovering valve failures, we can reduce accidents caused by valve failures that cannot be closed or opened in time. By monitoring the pipeline flow, pressure inside the pipeline, pipeline surface and pipeline valve failures, we can improve the pipeline safety and stability of the combined cooling and heating unit, reduce maintenance costs, optimize resource allocation, and improve management efficiency. These benefits are of great significance to improving the normal operation of the combined cooling and heating unit.

[0086] The specific processing process and abnormality determination process of pipeline flow evaluation parameters are as follows: extract the flow information in the pipeline, collect the flow information in the pipeline once every preset time, continuously collect the flow information in the pipeline m times, calculate the difference between the m times of flow information in the pipeline and the preset standard flow information in the pipeline, obtain m evaluation differences, extract the number of m evaluation differences that are less than the preset value, that is, obtain the pipeline flow evaluation parameter, when the pipeline flow evaluation parameter is greater than m / 3, it means that it is abnormal, m ≥ 10;

[0087] The specific processing process and abnormality determination process of the pipeline pressure assessment parameters are as follows: extract the collected pipeline pressure information, calculate the difference between the pipeline pressure and the preset standard pressure, and obtain the pipeline pressure assessment parameters. When the pipeline pressure assessment parameters exceed the preset range, it indicates that there is an abnormality.

[0088] The specific processing process of pipeline external evaluation parameters and the abnormality determination process are as follows: extract pipeline external information, which is pipeline external image information, obtain clear image information after clarifying the pipeline external impact information, and process the clear image to obtain two edge lines and the center line of the pipeline;

[0089] Then, at least f evaluation points are selected from the center line, and perpendicular lines are drawn from the evaluation points to the two edge lines to obtain two evaluation lines, that is, to obtain a single-point evaluation group. The lengths of the two evaluation lines of the f single-point evaluation groups are measured, that is, to obtain the external evaluation parameters of the pipeline, f>0, the number of f is proportional to the length of the pipeline, and f on the unit length of the pipeline is at least ≥5;

[0090] When the difference between the lengths of the two assessment lines of any assessment group in the f single-point assessment groups is a non-zero value, it means that the external assessment parameters of the pipeline are abnormal;

[0091] The specific processing process of the valve evaluation parameters and the abnormality determination process are as follows: extract the collected pipeline valve information, which is the number of valve rotations from the valve opening to the maximum position and the number of valve rotations from the valve closing to the minimum position;

[0092] The standard opening calculation number and the standard closing calculation number are set, and the difference between the valve rotation number when the valve is opened to the maximum position and the standard opening calculation number is calculated to obtain the opening evaluation difference. The difference between the valve rotation number when the valve is closed to the minimum position and the standard closing number is calculated to obtain the closing evaluation difference. The opening evaluation difference and the closing evaluation difference constitute the valve evaluation parameters. If either the opening evaluation difference or the closing evaluation difference exceeds the preset range, it means that the valve evaluation parameters are abnormal.

[0093] Through the above process, more accurate relevant parameters can be obtained, thereby ensuring the accuracy of the generation of corresponding fault information.

[0094] The specific processing process of the refrigeration fault information is as follows: extracting the collected refrigeration related information of the cooling and heating cogeneration device, the refrigeration related information of the cooling and heating cogeneration device includes the refrigeration system pressure difference information and the compressor status information of the refrigeration system;

[0095] Analyze the refrigeration system pressure difference information. When the refrigeration system pressure difference is the pressure difference between the refrigeration system and the outside, when the pressure difference between the refrigeration system and the outside is less than a preset value, it indicates that it is abnormal and generates refrigeration fault information;

[0096] Then analyzing the compressor status information of the refrigeration system, the compressor status information of the refrigeration system includes the compressor efficiency information and the compressor operating current information of the refrigeration system;

[0097] When the compressor efficiency information is less than the preset value and there is no abnormality in the refrigerant supply, a refrigeration fault message is generated;

[0098] When the compressor operating current information is greater than the preset value and there is no abnormality in the refrigerant supply, a refrigeration fault message is generated;

[0099] Through the above process, timely warning can be given when the refrigeration failure of the combined cooling and heating unit occurs, thereby preventing major accidents: compressor failure may cause major accidents. Through fault monitoring, these potential problems can be discovered in time to avoid accidents; early detection and early warning: fault monitoring technology can understand the operating status of the compressor in real time, detect faults and their causes early, and predict slow-changing faults. This helps to take measures in the early stages of the fault development to prevent the problem from expanding; timely alarm and chain reaction: for sudden faults, such as piston rod fracture, the fault monitoring system can timely alarm and start a chain reaction to avoid the expansion of the accident. This timely response mechanism can significantly reduce the impact of accidents on equipment and production; improve production efficiency: through fault monitoring, problems in the operation of the compressor can be discovered and solved in time, reducing production interruptions caused by faults, thereby improving production efficiency. Reduce maintenance costs: Early detection and early warning help to repair problems when they are relatively minor, avoiding complex and costly maintenance work required after the problem worsens. In addition, through targeted maintenance, maintenance costs can be saved and fault handling time can be shortened.

[0100] The specific processing process of heating fault information is as follows:

[0101] Extract the collected heating related information of the cooling and heating cogeneration device, the heating related information of the cooling and heating cogeneration device includes resistance wire resistance information, temperature control system information, power supply information and filter network information;

[0102] Analyze the resistance value information of the resistance wire, and when the resistance value of the resistance wire is less than the preset standard value, generate heating fault information;

[0103] Analyze the temperature control system information, which is the set temperature of the temperature control system. When the set temperature of the temperature control system does not match the actual need, heating fault information is generated;

[0104] Analyze the power supply information, and when the power supply stability is less than a preset value for more than a preset time, generate heating fault information;

[0105] Analyze the filter information, which is the filter cleaning frequency information. When the filter cleaning frequency is less than a preset value, heating fault information is generated.

[0106] As a key component of the combined heating and cooling device, the failure of the heating resistor wire may cause problems such as excessive working voltage of the heating tube, burning of the heating tube or leakage, and may even cause serious consequences such as fire. Fault monitoring can detect these problems in time, thereby avoiding major safety accidents. Through continuous fault monitoring, it can ensure that the heating resistor wire is in good working condition, timely detect and solve potential problems, and improve the overall reliability of the equipment. Extend the service life of the equipment: Timely fault monitoring and maintenance can avoid the equipment from running for a long time in a faulty state, thereby extending the service life of the equipment. Reduce maintenance costs: Early detection and early warning help to repair the problem when it is relatively minor, avoiding complex and costly maintenance work required after the problem worsens. In addition, through targeted maintenance, maintenance costs can be saved and fault handling time can be shortened. Improve production efficiency: Fault monitoring can ensure the normal operation of the heating resistor wire, reduce production interruptions caused by faults, and thus improve production efficiency. According to statistics, timely fault monitoring and handling can significantly reduce the downtime of the production line and improve the operating efficiency of the production line.

[0107] The specific processing process of the external environment warning information is as follows: extracting the external environment information collected from the cooling and heating cogeneration device, the external environment information of the cooling and heating cogeneration device includes ambient temperature information, ambient humidity information, air dust concentration information and cooling water quality information;

[0108] Analyze the ambient temperature information and obtain ambient temperature evaluation parameters;

[0109] Analyze the environmental humidity information and obtain environmental humidity assessment parameters;

[0110] Analyze the air dust concentration information to obtain environmental dust assessment parameters;

[0111] Analyze cooling water quality information and obtain water quality assessment parameters;

[0112] When any one of the environmental temperature assessment parameter, environmental humidity assessment parameter, environmental dust assessment parameter and water quality assessment parameter is abnormal, an external environmental warning message is generated;

[0113] Temperature influence: Low ambient temperature: When the ambient temperature is too low, it may affect the normal operation of the equipment. For example, in extremely cold weather conditions, the lubricant of the equipment may become viscous, affecting the moving parts of the equipment and causing failures.

[0114] Ambient temperature is too high: High temperature may cause the internal components of the device to overheat, affecting the performance and life of the device. Especially for electronic components, high temperature may cause them to fail or be damaged.

[0115] Humidity Effect: Excessive humidity: A high humidity environment may cause corrosion and rust of internal components of the device, leading to malfunctions. Especially for some metal parts and circuits, excessive humidity may cause short circuits or open circuits.

[0116] Air quality: Dust and pollutants in the air: These substances may accumulate on the heat dissipation components of the device, affecting the heat dissipation effect, and then causing the device to overheat. At the same time, dust and pollutants may also enter the interior of the device and affect the normal operation of the device;

[0117] Therefore, by timely generating external environmental warning information, accidents can be prevented: changes in environmental factors such as temperature, humidity, oxygen level, etc. will directly affect the operating status of the combined cooling and heating unit. Through environmental monitoring, changes in these parameters can be grasped in real time, thereby predicting and preventing potential safety hazards, such as equipment overheating, insufficient oxygen, etc. According to statistics, through environmental monitoring and early warning systems, the incidence of equipment failures and accidents caused by environmental factors can be significantly reduced.

[0118] Improve equipment reliability: Environmental monitoring can ensure that the combined cooling and heating unit operates in a suitable environment, avoiding equipment performance degradation or damage caused by environmental changes. Through real-time monitoring and regulation, it can ensure that the equipment is in the best working condition and improve its reliability and stability.

[0119] Optimize operating efficiency: Changes in environmental factors will affect the operating efficiency of the combined cooling and heating unit. Through environmental monitoring, you can understand the changes in environmental factors in real time and adjust the operating parameters and strategies of the equipment accordingly to achieve optimal operating efficiency.

[0120] Reduced maintenance costs: By monitoring and analyzing environmental factors, equipment problems caused by environmental changes can be discovered and resolved in a timely manner. This helps avoid complex and costly repairs that would otherwise be required if the problem deteriorates. In addition, targeted maintenance measures can extend the life of the equipment and reduce maintenance costs.

[0121] The acquisition and abnormality determination process of the environmental temperature assessment parameters, environmental humidity assessment parameters, environmental dust assessment parameters and water quality assessment parameters is as follows:

[0122] Extract the ambient temperature information, continuously collect the ambient temperature information q times within a preset time, record the number of times the ambient temperature information exceeds the preset temperature range, and obtain the ambient temperature evaluation parameter. If the ambient temperature evaluation parameter is greater than the preset value, it indicates that it is abnormal;

[0123] Extracting environmental humidity information, continuously collecting environmental humidity information g times within a preset time, extracting the number of times the environmental humidity information is greater than the preset humidity among the g times, that is, obtaining an environmental humidity evaluation parameter, and when the environmental humidity evaluation parameter is greater than the preset value, it indicates that it is abnormal;

[0124] Extract the air dust concentration information, record the duration when the air dust concentration information is greater than the preset value, and obtain the environmental dust assessment parameter. When the environmental dust assessment parameter is greater than the preset value for a certain period of time, it indicates that there is an abnormality.

[0125] Extract cooling water quality information, calculate the difference between it and standard water quality information to obtain water quality difference, that is, water quality assessment parameter. When the water quality assessment parameter is less than the preset value, it indicates that there is an abnormality;

[0126] Through the above process, more accurate relevant parameters can be obtained, thereby ensuring the accuracy of the generation of corresponding warning information.

[0127] The specific processing process of the maintenance warning information is as follows: extract the collected maintenance information of the cooling and heating cogeneration device, the maintenance information of the cooling and heating cogeneration device is the maintenance history information of the cooling and heating cogeneration device, process the maintenance history information to obtain the average maintenance interval information, and then upload the use time of the cooling and heating cogeneration device to the preset database, collect the standard maintenance interval of the cooling and heating cogeneration device with the corresponding use time from the preset database, and generate maintenance warning information when the average maintenance interval information is less than the standard maintenance interval of the cooling and heating cogeneration device;

[0128] Through the above process, it is possible to timely discover whether the maintenance of the combined cooling and heating device is in place. Timely maintenance can provide early warning and prevent failures: monitoring can track the operating status and performance of the equipment in real time, predict potential failures through data analysis, and achieve early warning. This helps to take preventive maintenance measures before a failure occurs and reduce the equipment failure rate.

[0129] Reduced maintenance costs: Preventive maintenance is usually less expensive than repairing after a failure. By monitoring and promptly identifying problems and repairing them, you can avoid the need for complex and costly repairs that would otherwise become a problem. For example, regular inspections and cleaning can prevent dust and debris from affecting the heat dissipation and normal operation of the equipment, thereby reducing maintenance costs.

[0130] Improve equipment reliability: Continuous monitoring and maintenance can ensure that the equipment operates in the best condition and improve its reliability and stability. According to statistics, through effective maintenance, the failure rate of the combined cooling and heating unit can be significantly reduced, thereby improving the continuity and stability of the production line.

[0131] Prolong the service life of equipment: Timely maintenance and care can prevent the equipment from running for a long time in a faulty state, thereby extending the service life of the equipment. Maintenance work such as replacing wearing parts and checking power lines can ensure the normal operation of the equipment and reduce production interruptions caused by equipment aging.

[0132] The specific processing process of the sensor fault information is as follows: extracting the collected sensor-related information of the cooling and heating cogeneration device, the sensor-related information of the cooling and heating cogeneration device includes the sensor position information, the connection tightness between the sensor and the installation surface, and the overload carrying time information;

[0133] When the deviation between the sensor position information and the preset standard position is greater than a preset value, sensor fault information is generated;

[0134] When the connection tightness between the sensor and the mounting surface is less than a preset value, sensor fault information is generated;

[0135] When the overload carrying time information is greater than the preset value, sensor fault information is generated;

[0136] By monitoring the sensor for faults, potential problems can be discovered and resolved in a timely manner, avoiding the need for complex and costly repairs when the problem deteriorates. In addition, targeted maintenance measures can extend the service life of the sensor and further reduce maintenance costs.

[0137] A method for identifying a fault state of a cooling and heating cogeneration device comprises the following steps:

[0138] Step 1: Collect pipeline information of the combined cooling and heating unit;

[0139] Step 2: Collect refrigeration-related information of the combined cooling and heating device;

[0140] Step 3: Collect heating related information of the cooling and heating cogeneration device;

[0141] Step 4: Sensor related information of the combined cooling and heating device;

[0142] Step 5: Collect external environment information of the cooling and heating cogeneration device;

[0143] Step 6: Collect maintenance information of the cooling and heating cogeneration device;

[0144] Step 7: Process the pipeline information, refrigeration related information, heating related information, sensor related information, external environment information and maintenance information of the cooling and heating cogeneration device to obtain pipeline fault information, refrigeration fault information, heating fault information, sensor fault information, external environment warning information and maintenance warning information;

[0145] Step 8: After the pipeline fault information, refrigeration fault information, heating fault information, sensor fault information, external pipe warning information and maintenance warning information are generated, the above information is sent to the preset receiving terminal.

[0146] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0147] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0148] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A fault status identification system for a combined cooling and heating device. It is characterized in that It includes a data acquisition system, a data processing module and an information sending module; The data acquisition system is used to collect pipeline information, refrigeration-related information, heating-related information, sensor-related information, external environment information and maintenance information of the combined cooling and heating device; The data processing module is used to process the pipeline information, refrigeration related information, heating related information, sensor related information, external environment information and maintenance information of the cooling and heating cogeneration device collected by the data acquisition system, and obtain pipeline fault information, refrigeration fault information, heating fault information, sensor fault information, external environment warning information and maintenance warning information; The information sending module is used to send the pipeline fault information, refrigeration fault information, heating fault information, sensor fault information, external pipe warning information and maintenance warning information to a preset receiving terminal after the above information is generated; The specific processing process of the pipeline fault information is as follows: Extract the collected pipeline information of the cooling and heating cogeneration device, the pipeline information of the cooling and heating cogeneration device includes flow information in the pipeline, pressure information in the pipeline, external information of the pipeline and pipeline valve information; Process the flow information in the pipeline to obtain the pipeline flow evaluation parameters, process the pressure information in the pipeline to obtain the pipeline pressure evaluation parameters, process the external information of the pipeline to obtain the external evaluation parameters of the pipeline, and process the pipeline valve to obtain the valve evaluation parameters; When any one of the pipeline flow evaluation parameter, pipeline internal pressure evaluation parameter, pipeline external evaluation parameter and valve evaluation parameter is abnormal, pipeline fault information is generated; The specific processing process and abnormality determination process of the pipeline flow evaluation parameter are as follows: extract the flow information in the pipeline, collect the flow information in the pipeline once every preset time, continuously collect the flow information in the pipeline m times, calculate the difference between the m times of the flow information in the pipeline and the preset standard flow information in the pipeline, obtain m evaluation differences, extract the number of the m evaluation differences that is less than the preset value, that is, obtain the pipeline flow evaluation parameter, and when the pipeline flow evaluation parameter is greater than m / 3, it indicates that it is abnormal; The specific processing process and abnormality determination process of the pipeline pressure assessment parameter are as follows: extract the collected pipeline pressure information, calculate the difference between the pipeline pressure and the preset standard pressure to obtain the pipeline pressure assessment parameter, and when the pipeline pressure assessment parameter exceeds the preset range, it indicates that there is an abnormality; The specific processing process and abnormality determination process of the pipeline external evaluation parameters are as follows: extracting pipeline external information, which is pipeline external image information, obtaining clear image information after clarifying the pipeline external impact information, and processing the clear image to obtain two edge lines and a center line of the pipeline; Then, at least f evaluation points are selected from the center line, and perpendicular lines are drawn to the two edge lines with the evaluation points as endpoints to obtain two evaluation lines, that is, to obtain a single-point evaluation group, and the lengths of the two evaluation lines of the f single-point evaluation groups are measured, that is, to obtain the external evaluation parameters of the pipeline; When the difference between the lengths of the two assessment lines of any assessment group in the f single-point assessment groups is a non-zero value, it means that the external assessment parameters of the pipeline are abnormal; The specific processing process and abnormality determination process of the valve evaluation parameters are as follows: extracting the collected pipeline valve information, the pipeline valve information is the number of valve rotations from the valve opening to the maximum position and the number of valve rotations from the valve closing to the minimum position; The standard number of opening turns and the standard number of closing turns are set, and the difference between the number of valve rotation turns when the valve is opened to the maximum position and the standard number of opening turns is calculated to obtain the opening assessment difference. The difference between the number of valve rotation turns when the valve is closed to the minimum position and the standard number of closing turns is calculated to obtain the closing assessment difference. The opening assessment difference and the closing assessment difference constitute the valve evaluation parameters. If either the opening assessment difference or the closing assessment difference exceeds the preset range, it means that the valve evaluation parameters are abnormal.

2. A fault status identification system for a cooling and heating cogeneration device according to claim 1, Features: The specific processing process of the refrigeration fault information is as follows: extracting the collected refrigeration related information of the cooling and heating cogeneration device, the refrigeration related information of the cooling and heating cogeneration device includes the refrigeration system pressure difference information and the compressor status information of the refrigeration system; Analyze the refrigeration system pressure difference information. When the refrigeration system pressure difference is the pressure difference between the refrigeration system and the outside, when the pressure difference between the refrigeration system and the outside is less than a preset value, it indicates that it is abnormal and generates refrigeration fault information; Then analyzing the compressor status information of the refrigeration system, the compressor status information of the refrigeration system includes the compressor efficiency information and the compressor operating current information of the refrigeration system; When the compressor efficiency information is less than the preset value and there is no abnormality in the refrigerant supply, a refrigeration fault message is generated; When the compressor operating current information is greater than the preset value and there is no abnormality in the refrigerant supply, a refrigeration fault message is generated.

3. A fault status identification system for a cooling and heating cogeneration device according to claim 1, Features: The specific processing process of the heating fault information is as follows: Extract the collected heating related information of the cooling and heating cogeneration device, the heating related information of the cooling and heating cogeneration device includes resistance wire resistance information, temperature control system information, power supply information and filter network information; Analyze the resistance value information of the resistance wire, and when the resistance value of the resistance wire is less than the preset standard value, generate heating fault information; Analyze the temperature control system information, which is the set temperature of the temperature control system. When the set temperature of the temperature control system does not match the actual need, heating fault information is generated; Analyze the power supply information, and when the power supply stability is less than a preset value for more than a preset time, generate heating fault information; The filter information is analyzed, the filter information is the filter cleaning frequency information, and when the filter cleaning frequency is less than a preset value, heating fault information is generated.

4. A fault status identification system for a cooling and heating cogeneration device according to claim 1, Features: The specific processing process of the external environment warning information is as follows: extracting the external environment information collected from the cooling and heating cogeneration device, the external environment information of the cooling and heating cogeneration device includes environmental temperature information, environmental humidity information, air dust concentration information and cooling water quality information; Analyze the ambient temperature information and obtain ambient temperature evaluation parameters; Analyze the environmental humidity information and obtain environmental humidity assessment parameters; Analyze the air dust concentration information to obtain environmental dust assessment parameters; Analyze cooling water quality information and obtain water quality assessment parameters; When any one of the environmental temperature assessment parameters, environmental humidity assessment parameters, environmental dust assessment parameters and water quality assessment parameters is abnormal, an external environment warning message is generated.

5. A fault state identification system for a cooling and heating cogeneration device according to claim 4, Features: The acquisition and abnormality determination process of the environmental temperature assessment parameter, environmental humidity assessment parameter, environmental dust assessment parameter and water quality assessment parameter is as follows: Extract the ambient temperature information, continuously collect the ambient temperature information q times within a preset time, record the number of times the ambient temperature information exceeds the preset temperature range, and obtain the ambient temperature evaluation parameter. If the ambient temperature evaluation parameter is greater than the preset value, it indicates that it is abnormal; Extracting environmental humidity information, continuously collecting environmental humidity information g times within a preset time, extracting the number of times the environmental humidity information is greater than the preset humidity among the g times, that is, obtaining an environmental humidity evaluation parameter, and when the environmental humidity evaluation parameter is greater than the preset value, it indicates that it is abnormal; Extract the air dust concentration information, record the duration when the air dust concentration information is greater than the preset value, and obtain the environmental dust assessment parameter. When the environmental dust assessment parameter is greater than the preset value for a certain period of time, it indicates that there is an abnormality. The cooling water quality information is extracted, and the difference between it and the standard water quality information is calculated to obtain the water quality difference, that is, the water quality assessment parameter. When the water quality assessment parameter is less than the preset value, it indicates that there is an abnormality.

6. A fault status identification system for a cooling and heating cogeneration device according to claim 1, Features: The specific processing process of the maintenance warning information is as follows: extract the collected maintenance information of the cogeneration device, the maintenance information of the cogeneration device is the maintenance history information of the cogeneration device, process the maintenance history information to obtain the average maintenance interval information, and then upload the usage time of the cogeneration device to the preset database, and collect the standard maintenance interval of the cogeneration device with the corresponding usage time from the preset database. When the average maintenance interval information is less than the standard maintenance interval of the cogeneration device, the maintenance warning information is generated.

7. A fault status identification system for a cooling and heating cogeneration device according to claim 1, Features: The specific processing process of the sensor fault information is as follows: extracting the collected sensor-related information of the cooling and heating cogeneration device, the sensor-related information of the cooling and heating cogeneration device includes sensor position information, connection tightness between the sensor and the installation surface, and overload carrying time information; When the deviation between the sensor position information and the preset standard position is greater than the preset value, sensor fault information is generated; When the connection tightness between the sensor and the mounting surface is less than a preset value, sensor fault information is generated; When the overload carrying time information is greater than a preset value, sensor fault information is generated.

8. A method for identifying a fault state of a cooling and heating cogeneration device, the method being based on the fault state identification system according to any one of claims 1 to 7, Features: The method comprises the following steps: Step 1: Collect pipeline information of the combined cooling and heating unit; Step 2: Collect refrigeration-related information of the combined cooling and heating device; Step 3: Collect heating related information of the cooling and heating cogeneration device; Step 4: Sensor related information of the combined cooling and heating device; Step 5: Collect external environment information of the cooling and heating cogeneration device; Step 6: Collect maintenance information of the combined cooling and heating device; Step 7: Process the pipeline information, refrigeration related information, heating related information, sensor related information, external environment information and maintenance information of the cooling and heating cogeneration device to obtain pipeline fault information, refrigeration fault information, heating fault information, sensor fault information, external environment warning information and maintenance warning information; Step 8: After the pipeline fault information, refrigeration fault information, heating fault information, sensor fault information, external pipe warning information and maintenance warning information are generated, the above information is sent to the preset receiving terminal.

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