Testing methods, devices and electronic equipment for heat exchange stations

Abstract

This disclosure provides a detection method, apparatus, and electronic device for a heat exchange station. The method includes: judging the communication status of the heat exchange station and obtaining a communication status judgment result; determining that the communication status judgment result is normal, acquiring first sensor data from a first sensor in the heat exchange station, analyzing and processing the first sensor data to determine whether the first sensor has a fault, and determining first fault data; determining that the first sensor does not have a fault, judging the operating status of the heat exchange station based on the first sensor data, and determining an operating status judgment result; determining that the operating status judgment result is normal, acquiring second sensor data from a second sensor in the heat exchange station, analyzing and processing the second sensor data to determine whether the second sensor has a fault, and determining second fault data; determining that the second sensor does not have a fault, analyzing and processing the operation of the heat exchange station based on the first sensor data, and obtaining an operation analysis report.

Description

Technical Field

[0001] This disclosure relates to the field of heat exchange technology, and in particular to a detection method, apparatus and electronic equipment for a heat exchange station. Background Technology

[0002] Heat exchange stations are a crucial component of HVAC systems, responsible for transferring heat between fluids through pipes to achieve heating or cooling effects. To ensure the normal operation of heat exchange stations and to achieve energy conservation and emission reduction, real-time monitoring and diagnostics are necessary. However, current methods for detecting and diagnosing heat exchange stations rely on single or limited sensors to monitor relevant parameters, resulting in incomplete monitoring and an inability to gain a detailed understanding of the station's operational status.

[0003] Therefore, how to conduct comprehensive and detailed testing of heat exchange stations has become an urgent problem to be solved. Summary of the Invention

[0004] In view of this, the purpose of this disclosure is to provide a detection method, apparatus and electronic equipment for heat exchange stations to solve or partially solve the above-mentioned technical problems.

[0005] To achieve the above objectives, the first aspect of this disclosure provides a method for testing a heat exchange station, comprising:

[0006] The communication status of the heat exchange station is determined, and the communication status determination result is obtained.

[0007] If the communication status judgment result is determined to be normal, the first sensor data of the first sensor in the heat exchange station is obtained, the first sensor data is analyzed and processed to determine whether the first sensor has a fault, and the first fault data is determined.

[0008] Once it is determined that the first sensor is not faulty, the operating status of the heat exchange station is judged based on the data from the first sensor, and the operating status judgment result is determined.

[0009] If the operating status judgment result is determined to be normal, the second sensor data of the second sensor in the heat exchange station is obtained, the second sensor data is analyzed and processed to determine whether the second sensor has a fault, and the second fault data is determined.

[0010] Once it is determined that the second sensor is not faulty, the operation of the heat exchange station is analyzed and processed based on the data from the first sensor to obtain an operation analysis report.

[0011] Based on the same inventive concept, a second aspect of this disclosure proposes a detection device for a heat exchange station, comprising:

[0012] The communication status judgment module is configured to judge the communication status of the heat exchange station and obtain the communication status judgment result.

[0013] The first detection module is configured to determine that the communication status judgment result is normal, acquire the first sensor data of the first sensor in the heat exchange station, analyze and process the first sensor data to determine whether the first sensor has a fault, and determine the first fault data.

[0014] The operation status judgment module is configured to determine that the first sensor is not faulty, judge the operation status of the heat exchange station based on the data of the first sensor, and determine the operation status judgment result.

[0015] The second detection module is configured to determine that the operating status judgment result is normal, acquire the second sensor data of the second sensor in the heat exchange station, analyze and process the second sensor data to determine whether the second sensor has a fault, and determine the second fault data.

[0016] The operation analysis report determination module is configured to determine that the second sensor is not faulty, and to analyze and process the operation of the heat exchange station based on the data from the first sensor to obtain an operation analysis report.

[0017] Based on the same inventive concept, a third aspect of this disclosure proposes an electronic device including a memory, a processor, and a computer program stored in the memory and executable by the processor, wherein the processor implements the method described above when executing the computer program.

[0018] As can be seen from the above description, the heat exchange station detection method, device, and electronic equipment provided in this disclosure include: Judging the communication status of the heat exchange station to obtain a communication status judgment result; determining that the communication status judgment result is normal, acquiring first sensor data from the first sensor in the heat exchange station, analyzing and processing the first sensor data to determine if the first sensor is faulty, and identifying first fault data; determining that the first sensor is not faulty, judging the operating status of the heat exchange station based on the first sensor data, and determining an operating status judgment result; determining that the operating status judgment result is normal, acquiring second sensor data from the second sensor in the heat exchange station, analyzing and processing the second sensor data to determine if the second sensor is faulty, and identifying second fault data. In this way, the communication status, operating status, and whether the first and second sensors in the heat exchange station are faulty can be detected, thereby achieving comprehensive detection of the heat exchange station, allowing users to have a comprehensive and detailed understanding of the heat exchange station's status. Determining that the second sensor is not faulty, analyzing and processing the operation of the heat exchange station based on the first sensor data to obtain an operation analysis report. By analyzing and judging the relationships between multiple parameters, the resulting operational analysis report becomes more accurate and can meet higher data analysis requirements. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in this disclosure or related technologies, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are only embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a flowchart of a detection method for a heat exchange station according to an embodiment of this disclosure;

[0021] Figure 2A This is a flowchart of the heat exchange station fault diagnosis and data analysis according to an embodiment of the present disclosure;

[0022] Figure 2B This is a flowchart illustrating the operation status determination process of a heat exchange station according to an embodiment of this disclosure.

[0023] Figure 2C This is a flowchart illustrating the target temperature control state determination process according to an embodiment of the present disclosure.

[0024] Figure 3 This is a schematic diagram of the structure of the detection device for the heat exchange station according to an embodiment of this disclosure;

[0025] Figure 4 This is a schematic diagram of the structure of an electronic device according to an embodiment of the present disclosure. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this disclosure clearer, the following detailed description is provided in conjunction with specific embodiments and the accompanying drawings.

[0027] It should be noted that, unless otherwise defined, the technical or scientific terms used in the embodiments of this disclosure should have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms "first," "second," and similar terms used in the embodiments of this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0028] As mentioned above, how to conduct comprehensive and detailed testing of heat exchange stations has become an important research question.

[0029] Based on the above description, such as Figure 1 As shown, the detection method for heat exchange stations proposed in this embodiment includes:

[0030] Step 101: Determine the communication status of the heat exchange station and obtain the communication status determination result.

[0031] In practice, the communication status of the heat exchange station is judged based on the timestamp of the collected sensor data to obtain the communication status judgment result, thereby determining whether the communication status of the heat exchange station is normal or faulty.

[0032] Step 102: Determine that the communication status judgment result is normal, obtain the first sensor data of the first sensor in the heat exchange station, analyze and process the first sensor data to determine whether the first sensor has a fault, and determine the first fault data.

[0033] In practice, when the communication status of the heat exchange station is normal, the system analyzes whether the first sensor of the heat exchange station is faulty, and the data corresponding to the faulty first sensor is taken as the first fault data. The first sensor includes the instruments used to display data in the heat exchange station.

[0034] The instrument displays the following temperatures for the heat exchange station: primary network supply water temperature, primary network return water temperature, secondary network supply water temperature, and secondary network return water temperature; the instrument displays the following pressures for the heat exchange station: primary network supply water pressure, primary network return water pressure, secondary network supply water pressure, and secondary network return water pressure.

[0035] Step 103: Determine that the first sensor is not faulty, and judge the operating status of the heat exchange station based on the data from the first sensor to determine the operating status judgment result.

[0036] In specific implementation, the presence of a fault in the first sensor of the heat exchange station is determined based on the first fault data. If it is determined that the first sensor of the heat exchange station is not faulty, then status data and actual value data are determined based on the first sensor. The status data includes: secondary network supply water pressure status, secondary network return water pressure status, secondary network supply water temperature status, and secondary network return water temperature status; the actual value data includes: actual values ​​of secondary network supply water pressure, secondary network return water pressure, secondary network supply water temperature, and secondary network return water temperature.

[0037] The operating status of the heat exchange station is determined based on the status data and the actual value data, and the operating status judgment result is determined. The operating status judgment result includes: non-operating status and normal status. Normal status includes: first low-temperature cold operation status and second low-temperature cold operation status.

[0038] Step 104: Determine that the operating status judgment result is normal, obtain the second sensor data of the second sensor in the heat exchange station, analyze and process the second sensor data to determine whether the second sensor has a fault, and determine the second fault data.

[0039] In practice, when the operating status of the heat exchange station is judged to be normal, the data of the second sensor in the heat exchange station is analyzed and processed to determine whether the second sensor is faulty, and the data corresponding to the faulty second sensor is taken as the second fault data.

[0040] For example, the system analyzes whether there are faults in the distributed variable frequency pumps in the heat exchange station, and uses the data corresponding to the faulty distributed variable frequency pumps as the second fault data.

[0041] Step 105: Determine that the second sensor is not faulty, and analyze and process the operation of the heat exchange station based on the data from the first sensor to obtain an operation analysis report.

[0042] In practice, when the second sensor is not faulty, the operation of the heat exchange station is analyzed and processed based on the data from the first sensor to obtain an operation analysis report, and the operation of the heat exchange station is checked based on the operation analysis report.

[0043] The heat exchange station operation analysis includes: primary network temperature difference detection, primary network pressure difference detection, secondary network temperature difference detection, secondary network pressure difference detection, temperature control status detection, primary network flow rate per 10,000 square meters detection, thermal index detection, secondary network flow rate per 10,000 square meters detection, and heat exchange effect detection.

[0044] In specific implementation, such as Figure 2A As shown, Figure 2A This is a flowchart illustrating the fault diagnosis and data analysis process for a heat exchange station according to an embodiment of this disclosure. The communication status of the heat exchange station is determined based on sensor data collected by sensors. When a communication fault is identified, the fault is investigated, and the communication fault is eliminated through engineering troubleshooting.

[0045] When the communication status of the heat exchange station is determined to be normal, the first sensor is diagnosed, resulting in a first diagnostic report. The first sensor can be an instrument in the heat exchange station used to display temperature, pressure, and valve feedback opening. When the first diagnostic report is abnormal, engineering troubleshooting is performed based on the report. When the first diagnostic report is normal, the operating status of the heat exchange station is assessed.

[0046] The operating status of the heat exchange station is assessed, and an operating status assessment result is obtained. If the operating status assessment result is "not operating," the analysis stops. If the operating status assessment result is either "first low-temperature cold operation state" or "second low-temperature cold operation state," the second sensor is diagnosed.

[0047] The second sensor is diagnosed, resulting in a second diagnostic report. This second sensor can be a distributed variable frequency pump. When the second diagnostic report indicates an anomaly, engineering troubleshooting is performed based on the report. When the second diagnostic report indicates a normal operation, an operational analysis of the heat exchange station is performed, resulting in an operational analysis report. The operational status of the heat exchange station is then checked based on this report.

[0048] Through the above embodiments, the communication status and operational status of the heat exchange station, as well as the presence of faults in the first and second sensors within the station, can be detected. This enables comprehensive monitoring of the heat exchange station, allowing users to gain a thorough and detailed understanding of its condition. Analysis and judgment based on the relationships between multiple parameters result in more accurate operational analysis reports, meeting higher data analysis requirements.

[0049] In some embodiments, the first sensor data includes at least one of the following: primary network supply and return temperature, primary network supply and return pressure, secondary network supply and return temperature, secondary network supply and return pressure, and valve feedback opening.

[0050] Step 102 includes:

[0051] Step 1021: The primary network supply and return temperature is judged and processed to determine that the primary network supply and return temperature does not meet the preset primary network supply and return temperature conditions, and the primary network supply and return temperature is used as the first fault data.

[0052] In practice, the primary network supply and return temperatures include the primary network supply water temperature and the primary network return water temperature; the primary network supply and return pressures include the primary network supply water pressure and the primary network return water pressure; the secondary network supply and return temperatures include the secondary network supply water temperature and the secondary network return water temperature; and the secondary network supply and return pressures include the secondary network supply water pressure and the secondary network return water pressure.

[0053] The primary network supply and return temperatures are assessed and processed. For example, the preset conditions for primary network supply and return temperatures are that the primary network supply and return temperature is less than or equal to 0℃, or the primary network supply and return temperature is greater than the sum of the actual water supply temperature from the heat source and the default margin. The actual water supply temperature from the heat source is obtained by collecting data from the water supply point, and the default margin is preset by the user, for example, the default margin is set to 10℃.

[0054] Based on the aforementioned preset primary network supply and return temperature conditions, the process of judging and processing the primary network supply and return temperature is as follows: when the primary network supply and return temperature is ≤0℃ or the primary network supply and return temperature is > the actual water supply temperature of the heat source +10℃, the instrument displaying the primary network supply and return temperature is faulty, and the primary network supply and return temperature is taken as the first fault data.

[0055] When judging and processing the supply and return temperatures of the primary network, it is necessary to exclude open circuit signals ±177, ±118 and inaccurate temperature changes in some cases, and to avoid false alarm defects caused by heat source temperature fluctuations and secondary network pump shutdowns.

[0056] And / or, in step 1022, the primary network supply and return pressure is judged and processed to determine that the primary network supply and return pressure does not meet the preset primary network supply and return pressure conditions, and the primary network supply and return pressure is used as the first fault data.

[0057] In practice, the supply and return pressures of the primary network are assessed. For example, the preset conditions for primary network supply and return pressures are that the pressure is less than or equal to 0 MPa, or greater than the upper limit. The upper limit can be determined based on specific circumstances, with the initial value being the highest actual operating pressure of the supply and return water in the primary network of the relevant heating system. Users can set this value according to their specific needs. For example, the default upper limit is 1.6 MPa. Whether or not a distributed variable frequency pump is installed in the primary network will result in different upper limits for the primary network supply and return pressures.

[0058] Based on the aforementioned preset primary grid supply and return pressure conditions, the process of judging and processing the primary grid supply and return pressure is as follows: when the primary grid supply and return pressure is ≤0MPa or the primary grid supply and return pressure is > the upper limit of the primary grid supply and return pressure, the instrument displaying the primary grid supply and return pressure is faulty, and the primary grid supply and return pressure is taken as the first fault data.

[0059] When judging and processing the primary grid supply and return pressure, it is necessary to exclude open circuit signals of ±1.9 and ±1.19, as well as situations where the pressure transformer is inaccurate in some cases. That is, when the upper limit of the primary grid supply and return pressure is higher than 1.9 and 1.19, no error should be reported. Under normal circumstances, except for the case of blocked pressure guide pipes, a primary grid supply and return pressure of 0 is almost non-existent.

[0060] And / or, in step 1023, the secondary network supply and return temperature is judged and processed to determine that the secondary network supply and return temperature does not meet the preset secondary network supply and return temperature conditions, and the secondary network supply and return temperature is used as the first fault data.

[0061] In practice, the supply and return temperatures of the secondary network are assessed. For example, the preset conditions for the secondary network supply and return temperatures are that the secondary network supply and return temperature is less than or equal to 0℃, or that the secondary network supply and return temperature is greater than the actual water supply temperature of the heat source. The actual water supply temperature of the heat source is obtained by collecting data from the water supply points.

[0062] Based on the aforementioned preset secondary network supply and return temperature conditions, the process of judging and processing the secondary network supply and return temperature is as follows: when the secondary network supply and return temperature is ≤0℃ or the secondary network supply and return temperature is > the actual water supply temperature of the heat source, the instrument displaying the secondary network supply and return temperature is faulty, and the secondary network supply and return temperature is taken as the first fault data.

[0063] When judging and processing the supply and return temperatures of the secondary network, it is necessary to exclude open circuit signals ±177, ±118 and inaccurate temperature changes in some cases, and to avoid false alarm defects caused by secondary network pump shutdown and temperature changer installation position being too close or too far from plate heat exchanger.

[0064] And / or, in step 1024, the secondary network supply and return pressure is judged and processed to determine that the secondary network supply and return pressure does not meet the preset secondary network supply and return pressure conditions, and the secondary network supply and return pressure is used as the first fault data.

[0065] In practice, the supply and return pressures of the secondary network are judged and processed. For example, the preset conditions for the supply and return pressures of the secondary network include: Condition 1, the supply and return pressure of the secondary network is less than or equal to 0 MPa, or the supply and return pressure of the secondary network is greater than the upper limit of the supply and return pressure of the secondary network; Condition 2, the absolute value of the pressure difference between the supply and return pressures of the secondary network is greater than the preset absolute value threshold of the pressure difference.

[0066] The upper limit of the secondary network supply and return pressure can be determined according to specific circumstances. The initial value is the highest actual operating pressure of the secondary network supply and return water among all heat exchange stations in the heating network. Users can set this according to specific circumstances. For example, the default upper limit of the secondary network supply pressure is 1.4 MPa, and the default upper limit of the secondary network return pressure is 1.3 MPa. Since the upper limits of the secondary network supply pressure and the secondary network return pressure are different, and there is a difference in the circulating pressure difference, they can be judged separately.

[0067] When judging the supply and return pressure of the secondary network based on conditions, it is necessary to exclude open circuit signals of ±1.9 and ±1.19, as well as situations where the pressure transformer is inaccurate in some cases. That is, when the upper limit of the secondary network supply and return pressure is higher than 1.9 and 1.19, no error should be reported. Under normal circumstances, except when the heat exchange station is not filled with water or the pressure guide pipe is blocked, a secondary network supply and return pressure of 0 is almost non-existent.

[0068] The absolute value of the secondary network supply and return pressure difference is the absolute value of the difference between the secondary network supply water pressure and the secondary network return water pressure. For example, the preset absolute value threshold for the pressure difference is 0.03 MPa. When judging and processing the secondary network supply and return pressure based on condition two, it is necessary to exclude false alarms caused by reversed secondary network supply and return water pressure transformer signals, or by the secondary network not being filled with water and the pressure transformer having a ±0.01 MPa error.

[0069] When both conditions one and two are met, it is determined that the instrument for the secondary network supply and return pressure is faulty, and the secondary network supply and return pressure is taken as the first fault data.

[0070] Based on the aforementioned preset secondary network supply and return pressure conditions, the process of judging and processing the secondary network supply and return pressure is as follows: when the secondary network supply and return pressure is ≤0MPa or the secondary network supply and return pressure is > the upper limit of the secondary network supply and return pressure, and the absolute value of the secondary network supply and return pressure difference is >0.03MPa, then the instrument displaying the secondary network supply and return pressure is faulty, and the secondary network supply and return pressure is taken as the first fault data.

[0071] And / or, in step 1025, the valve feedback opening is judged and processed to determine that the valve feedback opening does not meet the preset valve feedback opening condition, and the valve feedback opening is used as the first fault data.

[0072] In practice, the valve feedback opening degree is judged and processed. For example, the preset valve feedback opening degree conditions include: Condition 1, the valve feedback opening degree is less than or equal to the lower limit of the valve feedback opening degree; Condition 2, the valve feedback opening degree is greater than the upper limit of the valve feedback opening degree; Condition 3, the absolute value of the difference between the valve feedback opening degree and the target valve feedback opening degree is greater than a preset absolute value threshold for the opening degree. The target valve feedback opening degree is preset. For example, the lower limit of the valve feedback opening degree is 0%; the upper limit of the valve feedback opening degree is 100%; and the preset absolute value threshold for the opening degree is 20%.

[0073] When judging and processing valve feedback opening, it is necessary to rule out situations where there is a large deviation between the open circuit signal and the valve setting feedback, leading to valve uncontrollability. Valve uncontrollability refers to the valve becoming uncontrollable when the valve feedback opening reaches the upper or lower limit.

[0074] If any one of the above conditions one, two, and three is met, it is determined that the instrument for valve feedback opening is faulty, and the valve feedback opening is taken as the first fault data.

[0075] Based on the above-mentioned preset valve feedback opening conditions, the process of judging and processing the valve feedback opening is as follows: when the valve feedback opening is ≤0%, or the valve feedback opening is >100%, or the absolute value of the difference between the valve feedback opening and the target valve feedback opening is >20%, the instrument displaying the valve feedback opening is faulty, and the valve feedback opening is taken as the first fault data.

[0076] By using the above method, and by performing fault diagnosis on the primary network supply and return temperature, primary network supply and return pressure, secondary network supply and return temperature, secondary network supply and return pressure, and valve feedback opening, the first sensor in the heat exchange station can be comprehensively tested, so that users can have a comprehensive and detailed understanding of the heat exchange station's status.

[0077] In some embodiments, step 103 includes:

[0078] Step 1031: Determine the secondary network water supply pressure status, secondary network return water pressure status, secondary network water supply temperature status, and secondary network return water temperature status based on the data from the first sensor.

[0079] Step 1032: Determine the actual values ​​of the secondary network water supply pressure, the secondary network return water pressure, the secondary network water supply temperature, and the secondary network return water temperature based on the data from the first sensor.

[0080] In specific implementation, such as Figure 2B As shown, Figure 2B This is a flowchart illustrating the operation status determination process of a heat exchange station according to an embodiment of this disclosure. Figure 2B The symbols in the diagram have the following meanings: P1=0 indicates a fault in the secondary network water supply pressure, P1=1 indicates a normal secondary network water supply pressure; P2=0 indicates a fault in the secondary network return water pressure, P2=1 indicates a normal secondary network return water pressure; T1=0 indicates a fault in the secondary network water supply temperature, T1=1 indicates a normal secondary network water supply temperature; T2=0 indicates a fault in the secondary network return water temperature, T2=1 indicates a normal secondary network return water temperature. p1 represents the actual value of the secondary network water supply pressure, p2 represents the actual value of the secondary network return water pressure, t1 represents the actual value of the secondary network water supply temperature, and t2 represents the actual value of the secondary network return water temperature.

[0081] Step 1033: In response to determining that both the secondary network water supply pressure status and the secondary network return water pressure status are normal, and the difference between the actual value of the secondary network water supply pressure and the actual value of the secondary network return water pressure is greater than a preset first pressure difference threshold, the operating status judgment result is determined to be the first low-temperature cold operation status.

[0082] In specific implementation, the first low-temperature cold transport state is a state containing low-temperature cold transport. For example, the preset first pressure difference threshold is 0.03 MPa. When P1 = 1 and P2 = 1, and p1 - p2 > 0.03 MPa, the operating state judgment result is determined to be a state containing low-temperature cold transport.

[0083] Step 1034: In response to determining that both the secondary network water supply pressure status and the secondary network return water pressure status are normal, and the difference between the actual value of the secondary network water supply pressure and the actual value of the secondary network return water pressure is less than or equal to a preset first pressure difference threshold, the secondary network water supply temperature status and the secondary network return water temperature status are judged and processed.

[0084] Step 1035: If either the secondary network supply water temperature status or the secondary network return water temperature status is normal, and the actual temperature value corresponding to the normal status is greater than the preset first temperature difference threshold, then the operating status judgment result is determined to be the second low-temperature cold operation status.

[0085] In specific implementation, the second low-temperature cold transport state is a state without low-temperature cold transport. For example, the preset first temperature difference threshold is 25℃. When P1 = 1 and P2 = 1, and p1 - p2 ≤ 0.03 MPa, T1 and T2 are judged. When T1 = 1 and T2 = 0, t1 ≥ 25℃, then the operation state judgment result is determined to be a state with low-temperature cold transport. Or when T1 = 0 and T2 = 1, t2 ≥ 25℃, then the operation state judgment result is determined to be a state with low-temperature cold transport.

[0086] The above approach, which analyzes and judges the relationship between multiple parameters, makes the determined operating status more accurate and can meet higher data analysis requirements.

[0087] In some embodiments, the second sensor data includes at least one of the following: the feedback frequency of the distributed variable frequency pump, the instantaneous flow rate of the heat exchange station, the instantaneous heat of the heat exchange station, the supply and return temperature data of the heat exchange station, and the supply and return pressure data of the heat exchange station.

[0088] Step 104 includes:

[0089] Step 1041: Determine the feedback frequency of the distributed variable frequency pump. If the feedback frequency meets the preset frequency condition, then the feedback frequency of the distributed variable frequency pump is faulty.

[0090] In specific implementation, the preset frequency conditions include one of the following: Condition 1, the feedback frequency is less than the lower frequency limit; Condition 2, the feedback frequency is greater than the upper frequency limit; Condition 3, the distributed variable frequency pump is operating normally, but the absolute value of the difference between the target frequency and the feedback frequency is greater than the preset absolute frequency threshold; Condition 4, the distributed variable frequency pump is not running, but the feedback frequency is greater than the preset operating frequency. The target frequency is preset by the user. For example, the lower frequency limit is 0Hz; the upper frequency limit is 50Hz; the absolute frequency threshold is 5Hz; and the operating frequency is 5Hz.

[0091] When judging and processing the feedback frequency of a distributed variable frequency pump, it is necessary to rule out communication signal failures and large feedback deviations that could lead to uncontrollability of the distributed variable frequency pump. Uncontrollability of a distributed variable frequency pump refers to the pump becoming uncontrollable when its feedback frequency reaches its upper or lower limit.

[0092] If any one of the above conditions one, two, three, or four is met, then the feedback frequency of the distributed variable frequency pump is faulty. Based on the above preset frequency conditions, the process of judging and processing the feedback frequency is as follows: if the feedback frequency is <0Hz, or the feedback frequency is >50Hz, or the distributed variable frequency pump is operating normally but the absolute value of the difference between the target frequency and the feedback frequency is >5Hz, or the distributed variable frequency pump is not operating but the feedback frequency is >5Hz, then the feedback frequency of the distributed variable frequency pump is faulty.

[0093] And / or, in step 1042, the instantaneous flow rate of the heat exchange station is judged, and if it is determined that the instantaneous flow rate meets the preset flow rate conditions, then the instantaneous flow rate of the heat exchange station is faulty.

[0094] In practical implementation, the preset flow conditions include one of the following: Condition 1, the instantaneous flow rate is greater than the upper limit; Condition 2, the instantaneous flow rate is less than the lower limit; Condition 3, the heat exchange station is operating normally but the instantaneous flow rate is 0. The upper limit is the maximum flow rate of the heat exchange station in the relevant heat network, and users can set it according to their actual needs. For example, the default upper limit is set to 300 m³ / h. 3 / h, with a lower limit of 0 for the flow rate.

[0095] For heat exchange stations with only one heat meter installed, after assessing the operating status of each system, any fault in flow or heat capacity can be identified as long as one system is running. When assessing and processing the instantaneous flow rate of the heat exchange station, it is necessary to rule out faults such as incorrect flow rate ratio, reversed flow signal, zero-point drift, and disconnected flow meter.

[0096] If any one of the above conditions one, two, or three is met, then the instantaneous flow rate of the heat exchange station is faulty. Based on the above preset flow rate conditions, the process for judging and processing the instantaneous flow rate is as follows: when the instantaneous flow rate > 300 m³ / h 3 If the instantaneous flow rate is less than 0, or if the heat exchange station is operating normally but the instantaneous flow rate is 0, then there is a fault in the instantaneous flow rate of the heat exchange station.

[0097] And / or, in step 1043, the instantaneous heat of the heat exchange station is judged, and if it is determined that the instantaneous heat meets the preset heat conditions, then the instantaneous heat of the heat exchange station is faulty.

[0098] In practice, the preset heat conditions include one of the following: Condition 1, the instantaneous heat is less than the lower limit of the flow rate; Condition 2, there is a fault in the instantaneous flow rate; Condition 3, the heat exchange station is operating normally but the instantaneous heat is 0. For example, the lower limit of heat is 0.

[0099] For heat exchange stations with only one heat meter installed, after assessing the operating status of each system, any fault in flow or heat output can be identified as long as one system is running. When assessing and processing the instantaneous heat output of the heat exchange station, it is necessary to rule out heat meter malfunctions caused by reversed flow or supply / return water temperature signals, or flow meter failures.

[0100] If any one of the above conditions one, two, or three is met, then there is a fault in the instantaneous heat output of the heat exchange station. Based on the above-preset heat conditions, the process for judging and processing the instantaneous heat output is as follows: if the instantaneous heat output is less than 0, or if there is a fault in the instantaneous flow rate, or if the heat exchange station is operating normally but the instantaneous heat output is 0, then there is a fault in the instantaneous heat output of the heat exchange station.

[0101] And / or, in step 1044, the supply and return temperature data of the heat exchange station are judged, and it is determined that the supply and return temperature status in the supply and return temperature data are both normal, and the supply and return temperature difference is less than the preset second temperature difference threshold. Then the supply and return water temperature signals of the heat exchange station are reversed.

[0102] In specific implementation, the conditions for determining whether the supply and return water temperature signals of the heat exchange station are reversed include: Condition 1, judging the primary network supply and return temperatures and the secondary network supply and return temperatures through steps 1022 and 1024, and confirming that both the primary network supply and return temperatures and the secondary network supply and return temperatures are normal, that is, the supply and return temperature status in the supply and return temperature data is normal; Condition 2, the supply and return temperature difference is less than a preset second temperature difference threshold, where the supply and return temperature difference is the difference between the primary network supply and return temperatures and the secondary network supply and return temperatures. For example, the preset second temperature difference threshold is -3℃.

[0103] When judging whether the supply and return water temperature signals of the heat exchange station are reversed, condition two is set to eliminate false temperature alarms when the heat exchange station is first put into operation.

[0104] When both conditions one and two are met, the supply and return water temperature signals of the heat exchange station are reversed. Based on the above-preset condition of reversed supply and return water temperature signals, the process of judging whether the supply and return water temperature signals are reversed is as follows: the supply and return temperatures of the primary network and the secondary network are judged through steps 1022 and 1024. If it is determined that both the primary network supply and return temperatures and the secondary network supply and return temperatures are normal, and the difference between the primary network supply and return temperatures and the secondary network supply and return temperatures is < -3℃, then the supply and return water temperature signals of the heat exchange station are reversed.

[0105] And / or, in step 1045, the supply and return pressure data of the heat exchange station are judged, and it is determined that the supply and return pressure status in the supply and return pressure data are both normal, and the supply and return pressure difference is less than the preset second pressure difference threshold. Then the supply and return water pressure signals of the heat exchange station are reversed.

[0106] In specific implementation, the conditions for determining whether the supply and return water pressure signals of the heat exchange station are reversed include: Condition 1, judging the primary network supply and return pressure and the secondary network supply and return pressure through steps 1023 and 1025, and determining that both the primary network supply and return pressure and the secondary network supply and return pressure are normal, that is, the supply and return pressure status in the supply and return temperature data is normal; Condition 2, the supply and return pressure difference is less than the preset second pressure difference threshold, where the supply and return pressure difference is the difference between the primary network supply and return pressure and the secondary network supply and return pressure. For example, the preset second pressure difference threshold is -0.03MPa.

[0107] When judging whether the supply and return water pressure signals of the heat exchange station are reversed, the fault false alarm caused by the ±0.01MPa error of the heat exchange station pressure transformer is eliminated by setting condition two.

[0108] When both conditions one and two are met, the supply and return water pressure signals of the heat exchange station are reversed. Based on the above-preset condition of reversed supply and return water pressure signals, the process of judging whether the supply and return water pressure signals are reversed is as follows: the supply and return pressures of the primary network and the secondary network are judged through steps 1023 and 1025. If it is determined that both the supply and return pressures of the primary network and the secondary network are normal, and the difference between the supply and return pressures of the primary network and the secondary network is < -0.03MPa, then the supply and return water pressure signals of the heat exchange station are reversed.

[0109] By implementing the above solution, and by detecting the feedback frequency of the distributed variable frequency pump, the instantaneous flow rate of the heat exchange station, the instantaneous heat, whether the supply and return water temperature signals are reversed, and whether the supply and return water pressure signals are reversed, a comprehensive inspection of the heat exchange station can be conducted, allowing users to gain a thorough and detailed understanding of the heat exchange station's status.

[0110] In some embodiments, step 105 includes:

[0111] Step 1051: The temperature data in the first sensor data is averaged to obtain the average temperature. The difference between the average temperature and the preset target temperature is processed to obtain the temperature control deviation. The temperature control deviation is analyzed and processed to determine the target temperature control state.

[0112] In practice, the temperatures displayed on the instruments in the heat exchange station include either the actual supply water temperature or the actual return water temperature from the secondary network. The average actual supply water temperature is obtained by averaging multiple actual supply water temperatures from the secondary network. The difference between this average actual supply water temperature and the preset target supply water temperature is then calculated to obtain the supply water temperature control deviation. Similarly, the average actual return water temperature is obtained by averaging multiple actual return water temperatures from the secondary network. The difference between this average actual return water temperature and the preset target return water temperature is then calculated to obtain the return water temperature control deviation.

[0113] In specific implementation, the temperature control deviation is analyzed and processed to determine the first temperature control state. Based on the first temperature control state, the valve feedback opening in the instrument data and the feedback frequency in the sensor data are judged to obtain a judgment result. The target temperature control state is determined according to the judgment result. The first temperature control state includes a first supply water temperature control state and a first return water temperature control state. The target temperature control state includes a target supply water temperature control state and a target return water temperature control state.

[0114] Step 1052: Perform a first difference processing on the temperature data in the first sensor data to obtain the primary network temperature difference, and perform calculation processing on the primary network temperature difference and the instantaneous flow rate in the second sensor data to obtain the heat index of the heat exchange station.

[0115] In practice, the primary network temperature data in the first sensor data is differentially processed to obtain the primary network temperature difference. The primary network temperature difference and the instantaneous primary network flow rate of the heat exchange station are then calculated to obtain the heat exchange station's thermal index. Thermal index = Instantaneous primary network flow rate × Primary network temperature difference ÷ 860 × 10 6 ÷ Heat exchange station area = W / m 2 .

[0116] Step 1053: Perform a second difference processing on the temperature data in the first sensor data to obtain the primary network return water difference, and perform a judgment processing on the primary network return water difference and a preset return water difference threshold to determine the heat exchange effect of the heat exchange station.

[0117] In practice, the primary network return water temperature and the secondary network return water temperature are acquired from the data of the first sensor. A difference calculation is performed based on the primary and secondary network return water temperatures to obtain the primary network return water temperature difference. The primary network return water temperature difference is then compared with a preset return water temperature difference threshold to determine the heat exchange effect of the heat exchange station.

[0118] Step 1054: The target temperature control status, the thermal index, and the heat exchange effect are used as the operation analysis report.

[0119] In practice, after a comprehensive inspection of the second heat exchange station, the operation of the heat exchange station is analyzed. In addition to the above-mentioned heat exchange station operation analysis, the heat exchange station operation analysis also includes: primary network temperature difference detection, primary network pressure difference detection, secondary network temperature difference detection, secondary network pressure difference detection, primary network flow rate per 10,000 square meters, and secondary network flow rate per 10,000 square meters.

[0120] In practice, when detecting the primary network temperature difference, the primary network temperature difference is the difference between the primary network supply water temperature and the primary network return water temperature. From the perspective of heating supply, the heating capacity is determined by the flow rate and the supply-return water temperature difference. When the flow rate remains constant, the heating capacity is significantly affected by the temperature difference. If the primary network return water temperatures of each heating station are basically the same, and the return water temperatures of the same heat source are consistent, it indicates that the hydraulic balance of the primary network is good and should be maintained. If the primary network return water temperatures of each heating station are different, and the differences are significant, it indicates that there is a hydraulic imbalance in the primary network. In this case, the heating stations with excessively high primary network return water temperatures and small supply-return water temperature differences should be identified, and the flow regulation equipment (e.g., valves) at the primary network inlet of these heating stations should be closed to reduce their primary network circulation water volume. Primary network temperature difference detection is used to assist in identifying heating stations with excessively high primary network return water temperatures and small supply-return water temperature differences.

[0121] In practical implementation, primary network differential pressure detection defines it as the difference between the primary network supply pressure and the primary network return pressure. Comparison of differential pressures between heat exchange stations reflects the network water pressure and can be sorted by differential pressure, but this places high demands on the installation location of the pressure transformers at the heat exchange stations. Primary network differential pressure detection is used to record, observe, and compare changes in pressure and differential pressure, enabling timely detection of blockages in equipment and the pipeline network.

[0122] In practice, when detecting temperature differences in the secondary network, it is essential to first distinguish the heating type of each heat user at each heating station. Different heating types result in different supply and return water temperatures and temperature differences. Radiator heating systems (i.e., general heating) have high supply and return water temperatures and large temperature differences; floor radiant heating systems (i.e., underfloor heating) have low temperatures and small temperature differences. Analysis should be performed by referring to the respective operation and adjustment tables of the secondary network.

[0123] Pre-set default temperatures for different heating systems during different heating seasons. For example, during the early to late cold season, the default temperature setting for general heating is 3℃ to 8℃; the default temperature setting for underfloor heating is 2℃ to 6℃. During the severe cold season, the default temperature setting for general heating is 5℃ to 15℃; the default temperature setting for underfloor heating is 3℃ to 12℃. These default temperatures can be set according to project requirements and the corresponding water temperature for the heating season.

[0124] If the supply and return water temperatures of the secondary network in some heating stations are both too high, it indicates that the heating supply is excessive; if the supply and return water temperatures of the secondary network in some heating stations are both too low, it indicates that the heating supply is insufficient; if the supply water temperature of the secondary network is too low and the temperature difference between the supply and return water is too small, then the circulation pump flow rate should be considered to be too high.

[0125] Secondary network temperature difference detection is used to provide inspection opinions on whether the temperature difference is too large or too small. When the temperature difference is too large, it is necessary to further analyze whether uneven hydraulic conditions are causing reduced heating quality or energy waste; when the temperature difference is too small, it is necessary to further analyze whether the secondary network power consumption is too high or whether there is a bypass in the secondary network.

[0126] In practice, during secondary network differential pressure monitoring, the secondary side of the heat exchange equipment experiences a larger pressure difference due to the higher flow rate. When the heat exchange area of ​​the selected heat exchange equipment is reasonable, the pressure difference on the secondary side generally does not exceed 0.05 MPa. At the beginning of the heating season, the pressure difference between the two sides should be recorded as a standard for judging normal operating conditions. This does not distinguish between general heating and underfloor heating; the default pressure difference range is 0.05 MPa to 0.15 MPa. The default pressure difference range can be set according to project requirements and the corresponding water temperature during the heating season.

[0127] Excessive pressure differential may lead to high power consumption in the secondary network. Both excessively large and small pressure differentials may cause blockages or bypass issues, which should be avoided to prevent a decline in heating quality or energy waste. Secondary network pressure differential detection is used when the pressure differential increases by 0.03 MPa, or when the secondary side supply water temperature is lower than or equal to the primary side return water temperature. In such cases, it is recommended that the corresponding heat exchange equipment be flushed or disassembled.

[0128] In practical implementation, when detecting the flow rate per 10,000 square meters of the primary network, the flow rate per 10,000 square meters of the primary network = instantaneous flow rate of the primary network ÷ area of ​​the heat exchange station × 10 4 =m 3 / h·ten thousand m 2 In the event of a fault in the instantaneous flow rate data of the primary heat exchange station, the flow rate per 10,000 square meters of the primary heat exchange station should not be checked. Default values ​​vary significantly; therefore, it is advisable to differentiate by building type (e.g., energy-saving, non-energy-saving, conventional heating, or underfloor heating) and perform sorting and filtering checks. Because the instantaneous flow rate of the heat exchange station may fluctuate, the flow rate per 10,000 square meters of the primary heat exchange station should be used as a reference, and the cumulative heat output should be the final basis.

[0129] If the flow rate per 10,000 square meters in the primary network is too high or too low, it indirectly reflects the heating effect and the accuracy of the heat meter flow rate, preparing for energy consumption assessment. The significance of primary network flow rate detection lies in its ability to coordinate with electric regulating valves for manual adjustment. When using phased flow rate regulation, the circulating water volume in the pipe network remains constant in each phase, thus keeping the primary network flow rate relatively stable. This allows for manual adjustment based on the area covered by the secondary network.

[0130] In practical implementation, when detecting the flow rate per 10,000 square meters in the secondary network, the instantaneous flow rate of the secondary network = instantaneous flow rate of the primary network × temperature difference between the primary network supply and return ÷ temperature difference between the secondary network supply and return; the flow rate per 10,000 square meters in the secondary network = instantaneous flow rate of the secondary network ÷ area of ​​the heat exchange station × 10 4 =m 3 / h·ten thousand m 2 If the heat meter is configured as a subsystem, the secondary network flow rate will be calculated; otherwise, the secondary network flow rate per 10,000 square meters cannot be calculated. When the heat meter is configured as a subsystem, the secondary network flow rate per 10,000 square meters will not be detected if there are faults in the primary network instantaneous flow rate, primary network supply and return temperature, or secondary network supply and return temperature. The default value range is broad, allowing differentiation based on heating type (e.g., energy-saving, non-energy-saving, general heating, or underfloor heating), and displaying and filtering the data in a sorted manner. Because the instantaneous flow rate of the heat exchange station may fluctuate with the primary and secondary network temperatures, the secondary network flow rate per 10,000 square meters should be used as a reference, and the cumulative average should be used as the final basis.

[0131] Excessive flow rate per 10,000 square meters in the secondary network leads to excessive power consumption of the secondary network circulation pump; conversely, insufficient flow rate results in poor heating quality or excessively high temperatures due to secondary network imbalance, increasing heat consumption. The significance of secondary network flow rate detection lies in its ability to roughly calculate the actual flow rate of the water pump, allowing for verification of the pump's actual performance and operating status, and providing suggestions when the pump's operating condition deviates from its high-efficiency range.

[0132] In some embodiments, step 1051 includes:

[0133] Step 10511: The temperature control deviation is judged and processed to determine the first temperature control state.

[0134] In practice, the deviation of water supply temperature control = the average actual water supply temperature of the secondary network - the target water supply temperature; the deviation of return water temperature control = the average actual return water temperature of the secondary network - the target return water temperature.

[0135] Step 10512: In response to determining that the temperature control deviation is less than or equal to a preset first control deviation threshold and greater than or equal to a preset second control deviation threshold, the first temperature control state is a normal state.

[0136] In practice, when the temperature control deviation is less than or equal to the preset first control deviation threshold and greater than or equal to the preset second control deviation threshold, the first temperature control state is normal.

[0137] For example, a first control deviation threshold is preset to +1℃, and a second control deviation threshold is preset to -1℃. The above process is as follows: when -1℃ ≤ temperature control deviation ≤ +1℃, the first temperature control state is the normal state.

[0138] Step 10513: In response to determining that the temperature control deviation is greater than the first control deviation threshold, the first temperature control state is an oversupply state. Based on the valve feedback opening degree and the feedback frequency, the valve and the distributed variable frequency pump are judged to determine that the target temperature control state is a first oversupply state or a second oversupply state.

[0139] In specific implementation, when the temperature control deviation exceeds the first control deviation threshold, the first temperature control state is an oversupply state. Based on the valve feedback opening and the feedback frequency, the valve and the distributed variable frequency pump are judged to determine whether the valve or the distributed variable frequency pump is adjustable, thereby determining the target temperature control state. The first oversupply state is an adjustable oversupply state, and the second oversupply state is an unadjustable oversupply state.

[0140] Step 10514: In response to determining that the temperature control deviation is less than the second control deviation threshold, the first temperature control state is an undersupply state. Based on the valve feedback opening degree and the feedback frequency, the valve and the distributed variable frequency pump are judged to determine that the target temperature control state is a first undersupply state or a second undersupply state.

[0141] In specific implementation, when the temperature control deviation is less than the second control deviation threshold, the first temperature control state is an undersupply state. Based on the valve feedback opening and the feedback frequency, the valve and the distributed variable frequency pump are judged to determine whether the valve or the distributed variable frequency pump is adjustable, thereby determining the target temperature control state. The first undersupply state is an adjustable undersupply state, and the second undersupply state is an unadjustable undersupply state.

[0142] The above approach, based on the analysis and judgment of the relationship between multiple parameters, makes the determined target temperature control state more accurate and can meet higher data analysis requirements.

[0143] In some embodiments, step 10513 includes:

[0144] Step 10513A: Determine the state of the feedback frequency.

[0145] Step 10513B: In response to determining that the feedback frequency is in a normal state and that the feedback frequency is greater than the first frequency threshold, the target temperature control state is the first oversupply state.

[0146] Step 10513C: In response to determining that the feedback frequency is in an abnormal state, or that the feedback frequency is less than or equal to the first frequency threshold, the valve feedback opening degree is judged.

[0147] Step 10513D: If the valve feedback opening is determined to be equal to the lower limit of the valve opening, then the target temperature control state is the second oversupply state.

[0148] Step 10513E: If it is determined that the valve feedback opening is greater than the lower limit of the valve opening and the valve feedback opening is greater than the preset first opening threshold, then the target temperature control state is the first oversupply state.

[0149] Step 10513F: If it is determined that the valve feedback opening is greater than the lower limit of the valve opening and the valve feedback opening is less than or equal to the first opening threshold, then the target temperature control state is the second oversupply state.

[0150] In specific implementation, such as Figure 2C As shown, Figure 2C This is a flowchart illustrating the target temperature control state determination process according to an embodiment of the present disclosure. For example, a first frequency threshold of 10Hz and a first opening threshold of 5% are preset.

[0151] The above process is as follows: When the temperature control deviation is > +1℃, the first temperature control state is the oversupply state. At this time, the distributed variable frequency pump is judged. If there is a distributed variable frequency pump in the heat exchange station and the feedback frequency is normal, the feedback frequency is judged. If the feedback frequency is > 10Hz, the target temperature control state is the oversupply adjustable state.

[0152] When there are no distributed variable frequency pumps in the heat exchange station, or the feedback frequency is abnormal, or the feedback frequency is ≤10Hz, the valve feedback opening is compared with the lower limit of the valve opening to determine whether the valve is controllable. When the valve feedback opening is equal to the lower limit of the valve opening (i.e., the valve is uncontrollable), the target temperature control state is over-supply and unadjustable. When the valve feedback opening is greater than the lower limit of the valve opening (i.e., the valve is controllable), the valve feedback opening is assessed. When the valve feedback opening is ≤5%, the target temperature control state is over-supply and unadjustable. When the valve feedback opening is >5%, the target temperature control state is over-supply and adjustable.

[0153] The above approach, based on the analysis and judgment of the relationship between multiple parameters, makes the determined target temperature control state more accurate and can meet higher data analysis requirements.

[0154] In some embodiments, step 10514 includes:

[0155] Step 10514A: Determine the valve feedback opening degree.

[0156] Step 10514B: In response to determining that the valve feedback opening is less than the upper limit of the valve opening and the valve feedback opening is less than the preset second opening threshold, the target temperature control state is the first undersupply state.

[0157] Step 10514C: In response to determining that the valve feedback opening is equal to the upper limit of the valve opening, or that the valve feedback opening is greater than or equal to the second opening threshold, the state of the feedback frequency is judged and processed.

[0158] Step 10514D: If the feedback frequency is determined to be in an abnormal state, then the target temperature control state is the second undersupply state.

[0159] Step 10514E: If the feedback frequency is determined to be in a normal state and the feedback frequency is less than or equal to a preset second frequency threshold, then the target temperature control state is the first undersupply state.

[0160] Step 10514F: If the feedback frequency is determined to be in a normal state and the feedback frequency is greater than the second frequency threshold, then the target temperature control state is the second undersupply state.

[0161] In specific implementation, such as Figure 2C As shown, Figure 2C This is a flowchart illustrating the target temperature control state determination process according to an embodiment of this disclosure. For example, the second opening threshold is 95%, and the second frequency threshold is preset to 48Hz.

[0162] The process described above is as follows: When the temperature control deviation is < -1℃, the first temperature control state is an undersupply state. At this time, the valve feedback opening is compared with the upper limit of the valve opening to determine whether the valve is controllable. When the valve feedback opening is less than the upper limit of the valve opening (i.e., the valve is controllable), the valve feedback opening is judged and processed. When the valve feedback opening is < 95%, the target temperature control state is an undersupply adjustable state.

[0163] When the valve feedback opening equals the upper limit of the valve opening (i.e., the valve is uncontrollable) or the valve feedback opening is ≥95%, the distributed variable frequency pump is assessed and processed. If there is no distributed variable frequency pump in the heat exchange station or the feedback frequency is abnormal, the target temperature control status is under-supply and unadjustable. If there is a distributed variable frequency pump in the heat exchange station and the feedback frequency is normal, the feedback frequency is assessed and processed. If the feedback frequency is ≤48Hz, the target temperature control status is under-supply and adjustable. If the feedback frequency is >48Hz, the target temperature control status is under-supply and unadjustable.

[0164] The above approach, based on the analysis and judgment of the relationship between multiple parameters, makes the determined target temperature control state more accurate and can meet higher data analysis requirements.

[0165] In some embodiments, step 1052 includes:

[0166] Step 1052A: Multiply the temperature difference of the primary network and the instantaneous flow rate to obtain the product result.

[0167] Step 1052B: The product result is compared with the preset heat exchange station area to obtain the thermal index.

[0168] In practical implementation, when detecting thermal indexes, the thermal index = primary network instantaneous flow rate × primary network temperature difference ÷ 860 × 10 6 ÷ Heat exchange station area = W / m 2 (Due to inconsistencies in the instantaneous heat measurement units across different manufacturers' heat meters, heat indicators can be calculated based on flow rate and temperature difference.) Heat indicator testing is not performed when there are faults in the instantaneous flow rate data or supply / return temperature data of the primary network. The default value range is broad, allowing differentiation based on building type (e.g., energy-saving, non-energy-saving, standard heating, or underfloor heating), and display and pre- and post-screening checks in a sorted format. Because instantaneous values ​​at heat exchange stations may fluctuate, heat indicators should be used as a reference; cumulative heat should be the final basis for assessment.

[0169] A calorific value that is too high or too low indirectly reflects the heating effect and the accuracy of the heat meter flow rate, preparing for energy consumption assessments. The significance of calorific value testing lies in assisting in the measurement of heating quality. First, the rationality of the calorific value must be judged and corrected, distinguishing between different building types and heating methods of different heating stations (e.g., energy-saving, non-energy-saving, conventional heating, or underfloor heating). Then, through comparative statistical analysis of the calorific value, energy-saving suggestions are given.

[0170] In some embodiments, step 1053 includes:

[0171] Step 1053A: Compare and determine the difference between the primary network return water end and the preset return water end difference threshold.

[0172] Step 1053B: In response to determining that the primary network return water difference is greater than the first return water difference threshold, the first heat exchange effect is determined.

[0173] Step 1053C: In response to determining that the primary network return water difference is less than or equal to the first return water difference threshold and greater than the second return water difference threshold, the second heat exchange effect is determined; wherein, the first return water difference threshold is greater than the second return water difference threshold.

[0174] In practice, the primary network return water temperature and the secondary network return water temperature are obtained. The difference between these two temperatures is calculated to obtain the primary network return water temperature difference. When testing the heat exchange effect, the magnitude of the primary network return water temperature difference is used to judge the heat exchange effect; a larger difference indicates a poorer heat exchange effect, and a smaller difference indicates a better heat exchange effect. Primary network return water temperature difference = Primary network return water temperature - Secondary network return water temperature. Generally, the temperature difference is greater than 0, meaning the primary network return water temperature is higher than the secondary network return water temperature.

[0175] The threshold values ​​for the first and second return water differences can be set according to the actual situation of the project and the corresponding water temperature during the heating season.

[0176] For example, when the heating season is a cold period, the threshold for the first return water temperature difference is 10℃, and the threshold for the second return water temperature difference is 5℃. When the primary network return water temperature difference is >10℃, the first heat exchange effect is determined (i.e., poor heat exchange effect); when 5℃ < primary network return water temperature difference <10℃, the second heat exchange effect is determined (i.e., slightly poor heat exchange effect).

[0177] When the heating season is at the beginning or end of the cold period, the threshold for the first return water temperature difference is 7℃, and the threshold for the second return water temperature difference is 3℃. When the return water temperature difference of the primary network is greater than 7℃, the first heat exchange effect is determined (i.e., poor heat exchange effect); when 3℃ < the return water temperature difference of the primary network is less than 7℃, the second heat exchange effect is determined (i.e., slightly poor heat exchange effect).

[0178] In special cases, for heat exchange stations equipped with absorption heat exchange units with large temperature difference, if the terminal temperature difference is less than 0 (i.e., the primary network return water temperature is lower than the secondary network return water temperature), a temperature difference check is required. Reducing the terminal temperature difference can improve the economic efficiency of the heating unit.

[0179] The significance of the above scheme in heat exchange effect testing lies in using the difference in heat exchange end points as a basis to guide the inspection of heat exchange effect, such as the bypass switches of the primary and secondary networks, and the cleaning status of plate heat exchangers.

[0180] Through the above embodiments, the communication status and operational status of the heat exchange station, as well as the presence of faults in the instruments and distributed variable frequency pumps within the station, can be detected. This enables comprehensive monitoring of the heat exchange station, allowing users to gain a thorough and detailed understanding of its condition. Analysis and judgment based on the relationships between multiple parameters result in more accurate determination of the target temperature control state, meeting higher data analysis requirements.

[0181] It should be noted that the method of this disclosure embodiment can be executed by a single device, such as a computer or server. The method of this embodiment can also be applied to a distributed scenario, where multiple devices cooperate to complete the task. In such a distributed scenario, one of these devices may execute only one or more steps of the method of this disclosure embodiment, and the multiple devices will interact with each other to complete the method described.

[0182] It should be noted that the above description describes some embodiments of this disclosure. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in a different order than that shown in the above embodiments and still achieve the desired result. Furthermore, the processes depicted in the drawings do not necessarily require a specific or sequential order to achieve the desired result. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0183] Based on the same inventive concept, corresponding to any of the above embodiments, this disclosure also provides a detection device for a heat exchange station.

[0184] refer to Figure 3 The detection device for the heat exchange station includes:

[0185] The communication status judgment module 301 is configured to judge the communication status of the heat exchange station and obtain the communication status judgment result.

[0186] The first detection module 302 is configured to determine that the communication status judgment result is normal, acquire the first sensor data of the first sensor in the heat exchange station, analyze and process the first sensor data to determine whether the first sensor has a fault, and determine the first fault data.

[0187] The operation status judgment module 303 is configured to determine that the first sensor is not faulty, judge the operation status of the heat exchange station based on the data of the first sensor, and determine the operation status judgment result.

[0188] The second detection module 304 is configured to determine that the operating status judgment result is normal, acquire the second sensor data of the second sensor in the heat exchange station, analyze and process the second sensor data to determine whether the second sensor has a fault, and determine the second fault data.

[0189] The operation analysis report determination module 305 is configured to determine that the second sensor is not faulty, and to analyze and process the operation of the heat exchange station based on the data from the first sensor to obtain an operation analysis report.

[0190] In some embodiments, the first sensor data includes at least one of the following: primary network supply and return temperature, primary network supply and return pressure, secondary network supply and return temperature, secondary network supply and return pressure, and valve feedback opening.

[0191] The first detection module 302 includes:

[0192] The first judgment unit is configured to perform judgment processing on the primary network supply and return temperature, determine that the primary network supply and return temperature does not meet the preset primary network supply and return temperature conditions, and use the primary network supply and return temperature as the first fault data; and / or,

[0193] The second judgment unit is configured to perform judgment processing on the primary network supply and return pressure, determine that the primary network supply and return pressure does not meet the preset primary network supply and return pressure conditions, and use the primary network supply and return pressure as the first fault data; and / or,

[0194] The third judgment unit is configured to judge the secondary network supply and return temperature, determine that the secondary network supply and return temperature does not meet the preset secondary network supply and return temperature conditions, and use the secondary network supply and return temperature as the first fault data; and / or,

[0195] The fourth judgment unit is configured to judge the secondary network supply and return pressure, determine that the secondary network supply and return pressure does not meet the preset secondary network supply and return pressure conditions, and use the secondary network supply and return pressure as the first fault data; and / or,

[0196] The fifth judgment unit is configured to judge the valve feedback opening, determine that the valve feedback opening does not meet the preset valve feedback opening condition, and use the valve feedback opening as the first fault data.

[0197] In some embodiments, the running status determination module 303 includes:

[0198] The first determining unit is configured to determine the secondary network water supply pressure status, the secondary network return water pressure status, the secondary network water supply temperature status, and the secondary network return water temperature status based on the first sensor data.

[0199] The second determining unit is configured to determine the actual values ​​of the secondary network water supply pressure, the secondary network return water pressure, the secondary network water supply temperature, and the secondary network return water temperature based on the data from the first sensor.

[0200] The first low-temperature cold operation status determination unit is configured to determine the operating status judgment result as the first low-temperature cold operation status in response to determining that both the secondary network water supply pressure status and the secondary network return water pressure status are normal, and the difference between the actual value of the secondary network water supply pressure and the actual value of the secondary network return water pressure is greater than a preset first pressure difference threshold.

[0201] The secondary network judgment unit is configured to perform judgment processing on the secondary network water supply pressure status and the secondary network return water pressure status in response to determining that both the secondary network water supply pressure status and the secondary network return water pressure status are normal, and the difference between the actual value of the secondary network water supply pressure and the actual value of the secondary network return water pressure is less than or equal to a preset first pressure difference threshold.

[0202] The second low-temperature cold operation status determination unit is configured to determine that either the secondary network supply water temperature status or the secondary network return water temperature status is normal, and the actual temperature value corresponding to the normal status is greater than a preset first temperature difference threshold, and then determine the operation status judgment result as the second low-temperature cold operation status.

[0203] In some embodiments, the second sensor data includes at least one of the following: the feedback frequency of the distributed variable frequency pump, the instantaneous flow rate of the heat exchange station, the instantaneous heat of the heat exchange station, the supply and return temperature data of the heat exchange station, and the supply and return pressure data of the heat exchange station.

[0204] The second detection module 304 includes:

[0205] The feedback frequency determination unit is configured to determine the feedback frequency of the distributed variable frequency pump, and if it determines that the feedback frequency meets a preset frequency condition, then the feedback frequency of the distributed variable frequency pump is faulty; and / or,

[0206] The instantaneous flow rate determination unit is configured to determine the instantaneous flow rate of the heat exchange station, and if it determines that the instantaneous flow rate meets a preset flow rate condition, then the instantaneous flow rate of the heat exchange station is faulty; and / or,

[0207] The instantaneous heat assessment unit is configured to assess the instantaneous heat of the heat exchange station, and if it determines that the instantaneous heat meets a preset heat condition, then the instantaneous heat of the heat exchange station is faulty; and / or,

[0208] The supply and return temperature data judgment unit is configured to judge the supply and return temperature data of the heat exchange station, and determine that the supply and return temperature states in the supply and return temperature data are both normal, and the supply and return temperature difference is less than a preset second temperature difference threshold, then the supply and return water temperature signals of the heat exchange station are reversed; and / or,

[0209] The supply and return pressure data judgment unit is configured to judge the supply and return pressure data of the heat exchange station, and determine that the supply and return pressure status in the supply and return pressure data are both normal, and the supply and return pressure difference is less than a preset second pressure difference threshold. Then, the supply and return water pressure signals of the heat exchange station are reversed.

[0210] In some embodiments, the operation analysis report determination module 305 includes:

[0211] The target temperature control state determination unit is configured to average the temperature data in the first sensor data to obtain an average temperature, perform difference processing on the average temperature and a preset target temperature to obtain a temperature control deviation, and analyze and process the temperature control deviation to determine the target temperature control state.

[0212] The thermal index determination unit is configured to perform a first difference processing on the temperature data in the first sensor data to obtain the primary network temperature difference, and to perform calculation processing on the primary network temperature difference and the instantaneous flow rate in the second sensor data to obtain the thermal index of the heat exchange station.

[0213] The heat exchange effect determination unit is configured to perform a second difference processing on the temperature data in the first sensor data to obtain the primary network return water end difference, and to judge the primary network return water end difference with a preset return water end difference threshold to determine the heat exchange effect of the heat exchange station.

[0214] The operation analysis report generation unit is configured to use the target temperature control status, the thermal index, and the heat exchange effect as the operation analysis report.

[0215] In some embodiments, the target temperature control state determination unit includes:

[0216] The first temperature control state determination subunit is configured to judge and process the temperature control deviation to determine the first temperature control state.

[0217] The normal state determination subunit is configured to determine the first temperature control state as normal state in response to determining that the temperature control deviation is less than or equal to a preset first control deviation threshold and greater than or equal to a preset second control deviation threshold.

[0218] The oversupply state determination subunit is configured to, in response to determining that the temperature control deviation is greater than the first control deviation threshold, the first temperature control state is an oversupply state, and to judge the valve and the distributed variable frequency pump based on the valve feedback opening and the feedback frequency, determine the target temperature control state as a first oversupply state or a second oversupply state.

[0219] The undersupply state determination subunit is configured to, in response to determining that the temperature control deviation is less than the second control deviation threshold, the first temperature control state is an undersupply state, and to judge the valve and the distributed variable frequency pump based on the valve feedback opening degree and the feedback frequency, determine the target temperature control state as either a first undersupply state or a second undersupply state.

[0220] In some embodiments, the thermal index determination unit includes:

[0221] The product processing subunit is configured to perform product processing on the temperature difference of the primary network and the instantaneous flow rate to obtain the product result;

[0222] The ratio processing subunit is configured to perform ratio processing on the product result and the preset heat exchange station area to obtain the thermal index.

[0223] In some embodiments, the heat exchange effect determination unit includes:

[0224] The comparison and judgment module is configured to compare and judge the difference between the primary network return water end and a preset return water end difference threshold.

[0225] The first heat exchange effect determination module is configured to determine the first heat exchange effect in response to determining that the primary network return water difference is greater than the first return water difference threshold.

[0226] The second heat exchange effect determination module is configured to determine the second heat exchange effect in response to determining that the primary network return water difference is less than or equal to the first return water difference threshold and greater than the second return water difference threshold.

[0227] Wherein, the first return water difference threshold is greater than the second return water difference threshold.

[0228] For ease of description, the above apparatus is described in terms of its functions, divided into various modules. Of course, in implementing this disclosure, the functions of each module can be implemented in one or more software and / or hardware.

[0229] The apparatus described above is used to implement the detection method of the corresponding heat exchange station in any of the foregoing embodiments, and has the beneficial effects of the corresponding method embodiments, which will not be repeated here.

[0230] Based on the same inventive concept, corresponding to the methods of any of the above embodiments, this disclosure also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the detection method of the heat exchange station described in any of the above embodiments.

[0231] Figure 4 This embodiment illustrates a more specific hardware structure of an electronic device, which may include a processor 1010, a memory 1020, an input / output interface 1030, a communication interface 1040, and a bus 1050. The processor 1010, memory 1020, input / output interface 1030, and communication interface 1040 are interconnected internally via the bus 1050.

[0232] The processor 1010 can be implemented using a general-purpose CPU (Central Processing Unit), microprocessor, application-specific integrated circuit (ASIC), or one or more integrated circuits, and is used to execute relevant programs to implement the technical solutions provided in the embodiments of this specification.

[0233] The memory 1020 can be implemented in the form of ROM (Read Only Memory), RAM (Random Access Memory), static storage device, dynamic storage device, etc. The memory 1020 can store the operating system and other applications. When the technical solutions provided in the embodiments of this specification are implemented by software or firmware, the relevant program code is stored in the memory 1020 and is called and executed by the processor 1010.

[0234] The input / output interface 1030 is used to connect input / output modules to realize information input and output. Input / output modules can be configured as components within the device (not shown in the figure) or externally connected to the device to provide corresponding functions. Input devices may include keyboards, mice, touchscreens, microphones, various sensors, etc., while output devices may include displays, speakers, vibrators, indicator lights, etc.

[0235] The communication interface 1040 is used to connect a communication module (not shown in the figure) to enable communication between this device and other devices. The communication module can communicate via wired means (such as USB (Universal Serial Bus), network cable, etc.) or wireless means (such as mobile network, WIFI (Wireless Fidelity), Bluetooth, etc.).

[0236] Bus 1050 includes a pathway for transmitting information between various components of the device, such as processor 1010, memory 1020, input / output interface 1030, and communication interface 1040.

[0237] It should be noted that although the above-described device only shows the processor 1010, memory 1020, input / output interface 1030, communication interface 1040, and bus 1050, in specific implementations, the device may also include other components necessary for normal operation. Furthermore, those skilled in the art will understand that the above-described device may only include the components necessary for implementing the embodiments of this specification, and not necessarily all the components shown in the figures.

[0238] The electronic devices described above are used to implement the detection method of the corresponding heat exchange station in any of the foregoing embodiments, and have the beneficial effects of the corresponding method embodiments, which will not be repeated here.

[0239] Based on the same inventive concept, corresponding to the methods of any of the above embodiments, this disclosure also provides a non-transitory computer-readable storage medium storing computer instructions for causing the computer to execute the detection method of the heat exchange station as described in any of the above embodiments.

[0240] The computer-readable medium of this embodiment includes permanent and non-permanent, removable and non-removable media, and information storage can be implemented by any method or technology. Information can be computer-readable instructions, data structures, program modules, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, magnetic magnetic disk storage or other magnetic storage devices, or any other non-transfer medium that can be used to store information accessible by a computing device.

[0241] The computer instructions stored in the storage medium of the above embodiments are used to cause the computer to execute the detection method of the heat exchange station as described in any of the above embodiments, and have the beneficial effects of the corresponding method embodiments, which will not be repeated here.

[0242] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of this disclosure (including the claims) is limited to these examples; within the framework of this disclosure, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of the embodiments of this disclosure as described above, which are not provided in detail for the sake of brevity.

[0243] Additionally, to simplify the description and discussion, and to avoid obscuring the embodiments of this disclosure, the provided drawings may or may not show well-known power / ground connections to integrated circuit (IC) chips and other components. Furthermore, the apparatus may be shown in block diagram form to avoid obscuring the embodiments of this disclosure, and this also takes into account the fact that the details of implementation of these block diagram apparatuses are highly dependent on the platform on which the embodiments of this disclosure will be implemented (i.e., these details should be fully understood by those skilled in the art). While specific details (e.g., circuitry) have been set forth to describe exemplary embodiments of this disclosure, it will be apparent to those skilled in the art that the embodiments of this disclosure may be implemented without these specific details or with variations thereof. Therefore, these descriptions should be considered illustrative rather than restrictive.

[0244] Although this disclosure has been described in conjunction with specific embodiments thereof, many substitutions, modifications, and variations of these embodiments will be apparent to those skilled in the art from the foregoing description. For example, other memory architectures (e.g., dynamic RAM (DRAM)) may be used with the embodiments discussed.

[0245] This disclosure is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. A testing method for a heat exchange station, characterized in that, The method includes: The communication status of the heat exchange station is determined, and the communication status determination result is obtained. If the communication status judgment result is determined to be normal, the first sensor data of the first sensor in the heat exchange station is obtained, the first sensor data is analyzed and processed to determine whether the first sensor has a fault, and the first fault data is determined. Once it is determined that the first sensor is not faulty, the operating status of the heat exchange station is judged based on the data from the first sensor, and the operating status judgment result is determined. If the operating status judgment result is determined to be normal, the second sensor data of the second sensor in the heat exchange station is obtained, the second sensor data is analyzed and processed to determine whether the second sensor has a fault, and the second fault data is determined. Once it is determined that the second sensor is not faulty, the operation of the heat exchange station is analyzed and processed based on the data from the first sensor to obtain an operation analysis report; The step of determining the operating status of the heat exchange station based on the first sensor data and determining the operating status determination result includes: Based on the data from the first sensor, determine the secondary network water supply pressure status, secondary network return water pressure status, secondary network water supply temperature status, and secondary network return water temperature status. Based on the data from the first sensor, determine the actual values ​​of the secondary network water supply pressure, the secondary network return water pressure, the secondary network water supply temperature, and the secondary network return water temperature. In response to determining that both the secondary network water supply pressure status and the secondary network return water pressure status are normal, and the difference between the actual value of the secondary network water supply pressure and the actual value of the secondary network return water pressure is greater than a preset first pressure difference threshold, the operating status judgment result is determined to be the first low-temperature cold operation status. In response to determining that both the secondary network water supply pressure and the secondary network return water pressure are normal, and that the difference between the actual value of the secondary network water supply pressure and the actual value of the secondary network return water pressure is less than or equal to a preset first pressure difference threshold, the secondary network water supply temperature and the secondary network return water temperature are judged and processed. If either the secondary network supply water temperature status or the secondary network return water temperature status is determined to be normal, and the actual temperature value corresponding to the normal status is greater than the preset first temperature difference threshold, then the operating status judgment result is determined to be the second low-temperature cold operation status.

2. The method according to claim 1, characterized in that, The first sensor data includes at least one of the following: primary network supply and return temperature, primary network supply and return pressure, secondary network supply and return temperature, secondary network supply and return pressure, and valve feedback opening. The step of analyzing and processing the data from the first sensor to determine whether the first sensor is faulty and identifying the first fault data includes: The primary grid supply and return temperatures are assessed, and if it is determined that the primary grid supply and return temperatures do not meet the preset primary grid supply and return temperature conditions, the primary grid supply and return temperatures are used as the first fault data; and / or, The primary grid supply and return pressure is assessed, and if it is determined that the primary grid supply and return pressure does not meet the preset primary grid supply and return pressure conditions, the primary grid supply and return pressure is used as the first fault data; and / or, The secondary network supply and return temperature is assessed, and if it is determined that the secondary network supply and return temperature does not meet the preset secondary network supply and return temperature conditions, the secondary network supply and return temperature is used as the first fault data; and / or, The secondary network supply and return pressure is assessed, and if it is determined that the secondary network supply and return pressure does not meet the preset secondary network supply and return pressure conditions, the secondary network supply and return pressure is used as the first fault data; and / or, The valve feedback opening is judged and processed. If it is determined that the valve feedback opening does not meet the preset valve feedback opening condition, the valve feedback opening is used as the first fault data.

3. The method according to claim 2, characterized in that, The second sensor data includes at least one of the following: the feedback frequency of the distributed variable frequency pump, the instantaneous flow rate of the heat exchange station, the instantaneous heat of the heat exchange station, the supply and return temperature data of the heat exchange station, and the supply and return pressure data of the heat exchange station; The step of analyzing and processing the data from the second sensor to determine whether the second sensor is faulty and identifying the second fault data includes: If the feedback frequency of the distributed variable frequency pump is determined to meet a preset frequency condition, then the feedback frequency of the distributed variable frequency pump is faulty; and / or, If the instantaneous flow rate of the heat exchange station is determined to meet a preset flow rate condition, then the instantaneous flow rate of the heat exchange station is faulty; and / or, If the instantaneous heat value of the heat exchange station is determined to meet a preset heat condition, then the instantaneous heat value of the heat exchange station is faulty; and / or, The supply and return temperature data of the heat exchange station are evaluated. If it is determined that both the supply and return temperature states are normal and the supply and return temperature difference is less than a preset second temperature difference threshold, then the supply and return water temperature signals of the heat exchange station are reversed; and / or, If the supply and return pressure data of the heat exchange station are judged and it is determined that the supply and return pressure status is normal and the supply and return pressure difference is less than the preset second pressure difference threshold, then the supply and return water pressure signals of the heat exchange station are reversed.

4. The method according to claim 3, characterized in that, The analysis and processing of the operation of the heat exchange station based on the data from the first sensor to obtain an operation analysis report includes: The average temperature is obtained by averaging the temperature data in the first sensor data. The temperature control deviation is obtained by processing the difference between the average temperature and the preset target temperature. The target temperature control state is determined by analyzing the temperature control deviation. The temperature data in the first sensor data is processed by a first difference to obtain the primary network temperature difference. The primary network temperature difference and the instantaneous flow rate in the second sensor data are then processed to obtain the heat index of the heat exchange station. The temperature data in the first sensor data is processed by a second difference to obtain the primary network return water difference. The primary network return water difference is compared with a preset return water difference threshold to determine the heat exchange effect of the heat exchange station. The target temperature control status, the thermal index, and the heat exchange effect are used as the operation analysis report.

5. The method according to claim 4, characterized in that, The step of analyzing and processing the temperature control deviation to determine the target temperature control state includes: The temperature control deviation is judged and processed to determine the first temperature control state; In response to determining that the temperature control deviation is less than or equal to a preset first control deviation threshold and greater than or equal to a preset second control deviation threshold, the first temperature control state is a normal state. In response to determining that the temperature control deviation is greater than the first control deviation threshold, the first temperature control state is an oversupply state. Based on the valve feedback opening and the feedback frequency, the valve and the distributed variable frequency pump are judged to determine that the target temperature control state is a first oversupply state or a second oversupply state. In response to determining that the temperature control deviation is less than the second control deviation threshold, the first temperature control state is an undersupply state. Based on the valve feedback opening degree and the feedback frequency, the valve and the distributed variable frequency pump are judged to determine that the target temperature control state is a first undersupply state or a second undersupply state.

6. The method according to claim 4, characterized in that, The process of calculating and processing the temperature difference of the primary network and the instantaneous flow rate in the second sensor data to obtain the thermal index of the heat exchange station includes: The temperature difference of the primary network and the instantaneous flow rate are multiplied to obtain the product result; The product result is compared with the preset heat exchange station area to obtain the thermal index.

7. The method according to claim 4, characterized in that, The step of judging the difference between the primary network return water end and a preset return water end difference threshold to determine the heat exchange effect of the heat exchange station includes: The difference between the primary water return end and the preset threshold value is compared and judged. In response to determining that the primary network return water difference is greater than the first return water difference threshold, the first heat exchange effect is determined; In response to determining that the primary network return water difference is less than or equal to the first return water difference threshold and greater than the second return water difference threshold, the second heat exchange effect is determined. Wherein, the first return water difference threshold is greater than the second return water difference threshold.

8. A detection device for a heat exchange station, characterized in that, include: The communication status judgment module is configured to judge the communication status of the heat exchange station and obtain the communication status judgment result. The first detection module is configured to determine that the communication status judgment result is normal, acquire the first sensor data of the first sensor in the heat exchange station, analyze and process the first sensor data to determine whether the first sensor has a fault, and determine the first fault data. The operation status judgment module is configured to determine that the first sensor is not faulty, judge the operation status of the heat exchange station based on the data of the first sensor, and determine the operation status judgment result. The second detection module is configured to determine that the operating status judgment result is normal, acquire the second sensor data of the second sensor in the heat exchange station, analyze and process the second sensor data to determine whether the second sensor has a fault, and determine the second fault data. The operation analysis report determination module is configured to determine that the second sensor is not faulty, and to analyze and process the operation of the heat exchange station based on the data from the first sensor to obtain an operation analysis report; The operation status determination module includes: The first determining unit is configured to determine the secondary network water supply pressure status, the secondary network return water pressure status, the secondary network water supply temperature status, and the secondary network return water temperature status based on the first sensor data. The second determining unit is configured to determine the actual values ​​of the secondary network water supply pressure, the secondary network return water pressure, the secondary network water supply temperature, and the secondary network return water temperature based on the data from the first sensor. The first low-temperature cold operation status determination unit is configured to determine the operating status judgment result as the first low-temperature cold operation status in response to determining that both the secondary network water supply pressure status and the secondary network return water pressure status are normal, and the difference between the actual value of the secondary network water supply pressure and the actual value of the secondary network return water pressure is greater than a preset first pressure difference threshold. The secondary network judgment unit is configured to perform judgment processing on the secondary network water supply pressure status and the secondary network return water pressure status in response to determining that both the secondary network water supply pressure status and the secondary network return water pressure status are normal, and the difference between the actual value of the secondary network water supply pressure and the actual value of the secondary network return water pressure is less than or equal to a preset first pressure difference threshold. The second low-temperature cold operation status determination unit is configured to determine that either the secondary network supply water temperature status or the secondary network return water temperature status is normal, and the actual temperature value corresponding to the normal status is greater than a preset first temperature difference threshold, and then determine the operation status judgment result as the second low-temperature cold operation status.

9. An electronic device, characterized in that, It includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor, when executing the program, implements the method as described in any one of claims 1 to 7.

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