A dynamic water balance detection method and device

Abstract

The present application relates to the technical field of water environment protection, and provides a dynamic water balance detection method and device. It mainly includes obtaining the water inlet flow data and water outlet flow data of the water-using unit to be tested within the measurement period, and calculating the water consumption, drainage, and water consumption, thereby calculating the measurement loss value within the measurement period; calculating the error value through product output, water and drainage voucher value and annual value, and judging whether the water balance is abnormal based on the size of the error value. The measurement period can be flexibly selected according to demand to meet the needs of regular or irregular sampling, or real-time dynamic monitoring. The introduction of the annual voucher value as an objective reference value improves the accuracy and authenticity of the water balance detection and monitoring results.

Description

Technical Field

[0001] The present application belongs to the technical field of water balance testing, and specifically relates to a dynamic water balance detection method and device. Background Art

[0002] Water balance testing refers to the process of systematically testing, counting, and analyzing the water volume of water-using units and water-using systems to derive a water balance relationship. In the management and control of a company's water systems, water balance testing is a fundamental task for studying the balance between the input, output, and losses of a water system, ensuring water-saving production, and achieving scientific and rational water management. Specifically, water balance testing measures the volume and quality of water intake, use, discharge, and consumption by water-using enterprises to understand the current status of water use and discharge, rationally evaluate current water use levels, identify water-saving potential, and optimize the water system to achieve efficient use of water resources and conservation.

[0003] Currently, there are no unified, complete, and practical water balance testing standards and methods. The relevant general regulations only provide general principles for water balance testing, and existing technologies do not provide a clear basis for objectively and accurately assessing the water use status of water users based on their scale, thereby optimizing water use systems. Furthermore, existing water balance testing methods fail to incorporate additional reference materials or verify the authenticity and accuracy of the original reported data from other perspectives, making it impossible to guarantee the reliability of water balance test results and, consequently, failing to objectively and truly reflect the water balance status of water-using enterprises. Summary of the Invention

[0004] The present application provides a dynamic water balance detection method and device to solve the problem in the prior art that the water balance test method cannot verify the authenticity and accuracy of water volume data and cannot ensure the reliability of water balance detection results.

[0005] In a first aspect of the present application, a method for detecting a dynamic water balance is provided, comprising the following steps:

[0006] Step S101: Obtain the inlet flow rate data and the outlet flow rate data of the water-using unit to be measured within the measurement period, and calculate the water consumption, drainage volume, and water consumption, thereby calculating the measurement loss value within the measurement period; measurement loss value = water consumption - drainage volume - water consumption;

[0007] Step S102: obtaining the product output of the water-using unit to be tested during the measurement period;

[0008] Step S103: Calculate the unit measurement loss value according to the product output and the measurement loss value within the measurement period using the following formula:

[0009] Unit measurement loss value = measurement loss value / product output;

[0010] Step S104: Calculate and obtain the annual cumulative water consumption value of the water user to be tested, and obtain the annual product output of the water user to be tested; obtain the annual average water consumption voucher value and annual average drainage voucher value of the water user to be tested, and calculate the annual average leakage value of the unit according to the following formula:

[0011] Annual average leakage value = annual average water consumption certificate value - annual average drainage certificate value - annual cumulative water consumption value;

[0012] Average annual loss value per unit = average annual loss value / annual output of product;

[0013] Step S105: Compare the unit measurement loss value and the unit annual average loss value, calculate the error value, and determine whether the measurement loss value is abnormal; error value = (unit measurement loss value - unit annual average loss value) / unit annual average loss value;

[0014] When the error value is greater than 25%, it is determined that the measurement loss value is abnormal;

[0015] When the error value is ≤25%, it is determined that the measured loss value and the average annual loss value are both reliable and there is no abnormality.

[0016] Optionally, when the error value is greater than 50%, it is determined that there is a leakage problem in the pipe network of the water-using unit to be tested, and the leakage point needs to be found immediately.

[0017] Optionally, if the annual average loss value / annual average water consumption certificate value is ≤20%, the annual average loss value is judged to be credible, otherwise it is unreliable and an abnormality exists; when the annual average loss value is unreliable or the annual average loss value data is missing, it is judged according to the following conditions: if the measured loss value / water consumption is ≤20%, the measured loss value is judged to be credible and there is no abnormality, otherwise it is unreliable and an abnormality exists.

[0018] Optionally, the average annual water consumption voucher value is obtained from the statistical data of the water supply unit in the previous year, or from the water fee voucher of the water user in the previous year; the average annual drainage voucher value is obtained from the statistical data of the drainage pipe flow of the water user in the previous year, or from the sewage discharge treatment fee voucher of the water user in the previous year.

[0019] Optionally, the measurement period is 24 hours, or the minimum production period of the product is used as the measurement period;

[0020] When the measurement period is 24 hours, the water balance test is performed according to the method of steps S101-S103, including:

[0021] According to step S101, the daily water consumption, daily drainage, and daily water consumption are calculated to obtain the daily measurement loss value and the daily product output;

[0022] Based on the daily product output and daily measurement loss value, the unit daily measurement loss value is calculated according to the following formula:

[0023] Unit daily measurement loss value = daily measurement loss value / daily product output;

[0024] In step S105, the unit daily measurement loss value and the unit annual average loss value are compared to calculate the daily error value to determine whether the daily measurement loss value is abnormal; daily error value = (unit measurement daily loss value - unit annual average loss value) / unit annual average loss value;

[0025] If the error value of the day is greater than 25%, it is determined that the daily measurement loss value is abnormal;

[0026] The error value on that day is ≤25%, which means that both the daily measurement loss value and the annual average loss value are reliable and there is no abnormality;

[0027] When the annual average missing value is unreliable or the annual average missing value data is missing, the following conditions shall be used for judgment: if the daily measurement missing value / daily water consumption ≤ 20%, the daily measurement missing value is judged to be credible and there is no abnormality; otherwise, it is unreliable and there is an abnormality.

[0028] Optionally, when the daily error value is greater than 50%, it is determined that there is a leakage problem in the pipe network of the water-using unit to be tested, and the leakage point needs to be found immediately.

[0029] Optionally, when it is determined that the daily measurement loss value is abnormal, continuous weekly measurement of water balance detection is performed on the water user unit to be tested, and steps S101-S105 are repeated for seven consecutive days.

[0030] Optionally, during the seven consecutive days of weekly measurement, when a daily error value greater than 25% occurs on a certain day, it is determined that a leakage problem exists in the pipe network of the water-using unit to be measured, and the leakage point needs to be found in a timely manner.

[0031] Optionally, the method further divides the water circulation system of the water-using unit to be tested into multiple subsystems, and calculates the water consumption, drainage, water consumption and measurement loss value of each subsystem respectively according to the method of step S101;

[0032] Based on the water consumption of each subsystem and the measurement loss value, it is judged whether each subsystem has achieved water balance within the measurement period; when the measurement loss value / water consumption is greater than 20%, it is judged that the subsystem has not achieved water balance; when the measurement loss value / water consumption is ≤20%, it is judged that the subsystem has achieved water balance.

[0033] In a second aspect of the present application, a dynamic water balance detection device is provided, comprising:

[0034] A measuring unit, comprising a flow data acquisition module, a water volume calculation module, and a leakage value calculation module;

[0035] Wherein: the flow data acquisition module is used to acquire and store the water inlet flow data and the water outlet flow data of the water-using unit to be measured within the measurement period; the water volume calculation module is used to retrieve the original flow data used for the statistics and calculation of water consumption, drainage and water consumption from the flow data acquisition module, and perform calculations to obtain the water consumption, drainage and water consumption values; the leakage value calculation module is used to calculate the measurement leakage value based on the water consumption, drainage and water consumption values ​​obtained by the water volume calculation module;

[0036] The output value data unit is used to input and store the output of products produced by the water-consuming unit to be measured during the measurement period;

[0037] The annual value statistics unit is used to input and store the annual cumulative value of water consumption of the water-using unit to be tested, as well as the annual average water consumption voucher value and the annual average drainage voucher value;

[0038] The error value calculation unit includes a data retrieval module for retrieving the measurement loss value from the measurement unit, the product output from the output value data unit, and the annual cumulative value of water consumption, the annual average water consumption voucher value, and the annual average water discharge voucher value from the annual value statistics unit; the error value calculation module is used to calculate the statistical error value based on the values ​​of the data retrieval unit;

[0039] The determination unit is used to determine whether the measurement loss value is abnormal.

[0040] As can be seen from the above scheme, the dynamic water balance detection method provided by this application verifies the credibility and accuracy of water volume data from multiple angles, and improves the reliability of water balance detection results. Specifically, the values ​​of a short measurement period are compared with the annual average to determine whether there are any abnormalities in the water usage during the measurement period; by introducing the product output in the corresponding period as the basis for the average, so that the water volume data of two different time periods are comparable, and by setting different judgment conditions, the credibility of the values ​​used in the measurement process is improved. The measurement period can be flexibly selected according to demand, and meet the needs of regular or irregular sampling, or real-time dynamic monitoring. In the water balance detection process, the annual voucher value is also introduced as an objective reference value to improve the accuracy and authenticity of the water balance detection and monitoring results.

[0041] Furthermore, the method provided in this application can also divide the water circulation system of the water-using unit to be tested into detailed divisions. By collecting the water flow data of each water circulation subsystem, it is possible not only to determine whether the overall water circulation is dynamically balanced, but also to monitor the water use status of each subsystem in real time, and to quickly locate the subsystem with unbalanced water use, thereby facilitating subsequent water-saving modification measures. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the technical solution of the present application, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0043] Figure 1 This is a flow chart of a dynamic water balance detection method according to an embodiment of the present application;

[0044] Figure 2 This is a structural diagram of a dynamic water balance detection device according to an embodiment of the present application. DETAILED DESCRIPTION

[0045] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application is described in detail below with reference to the accompanying drawings and embodiments.

[0046] The present application embodiment provides a dynamic water balance detection method, such as Figure 1 As shown, the following steps are included:

[0047] Step S101: Obtain the inlet flow data and outlet flow data of the water-using unit to be measured within the measurement period, and calculate the water consumption, drainage volume, and water consumption, thereby calculating the measurement loss value within the measurement period; measurement loss value = water consumption - drainage volume - water consumption.

[0048] Step S102: obtaining the product output of the water-using unit to be tested during the measurement period;

[0049] Step S103: Calculate the unit measurement loss value according to the product output and the measurement loss value within the measurement period using the following formula:

[0050] Unit measurement loss value = measurement loss value / product output;

[0051] Step S104: Calculate and obtain the annual cumulative water consumption value of the water user to be tested, and obtain the annual product output of the water user to be tested; obtain the annual average water consumption voucher value and annual average drainage voucher value of the water user to be tested, and calculate the annual average leakage value of the unit according to the following formula:

[0052] Annual average leakage value = annual average water consumption certificate value - annual average drainage certificate value - annual cumulative water consumption value;

[0053] Average annual loss value per unit = average annual loss value / annual output of product;

[0054] Step S105: Compare the unit measurement loss value and the unit annual average loss value, calculate the error value, and determine whether the measurement loss value is abnormal; error value = (unit measurement loss value - unit annual average loss value) / unit annual average loss value;

[0055] When the error value is greater than 25%, the measurement loss value is judged to be unreliable and abnormal;

[0056] When the error value is ≤25%, it is determined that the measured loss value and the average annual loss value are both reliable and there is no abnormality.

[0057] Specifically, the measurement cycle can be online, real-time, relying on an online water volume statistics platform, with data updated on a per-hour or per-hour basis, enabling dynamic monitoring of the water circulation system. Alternatively, it can be a supervisory sampling inspection, which can be conducted on a half-day, full-day, two consecutive days, or even a full month. Similarly, the measurement cycle should also take into account the product's production cycle. If a product's production time exceeds 24 hours, the measurement cycle can be based on the product's minimum production cycle.

[0058] In this embodiment, as a preferred implementation mode, one day (24 hours) is selected as the measurement period, the water consumption mentioned above is the daily water consumption, the measurement loss value is the daily measurement loss value, the product output is the product output of the day, the unit measurement loss value is the unit daily measurement loss value, and the error value is the daily error value.

[0059] For step S101:

[0060] The inlet flow data and the outlet flow data can be obtained through water metering instruments, including but not limited to water meters, flow meters, thermometers, stopwatches and other measuring tools.

[0061] The water inflow can be obtained from the inflow flow data as the water consumption, and the water discharge can be obtained from the outflow flow data.

[0062] When calculating water consumption, the water consumption of each water-using unit under test can be calculated based on existing general water balance testing methods or published water balance testing guidelines (e.g., General Rules for Water Balance Testing GB12452-2008). Specifically, the circulating cooling water volume can be analyzed and obtained from the water-using unit's production process data, or this operating parameter can be obtained directly from the water-using unit. The amount of blow-off water, evaporation water, and splash water generated in each production process of the water-using unit can then be calculated.

[0063] Water consumption V co = Blowing water volume F + evaporation loss water volume G + splashing water volume Q;

[0064] ①Amount of blown water F

[0065] F=R×k1

[0066] Where: R represents the amount of circulating cooling water, k1 represents the blowing coefficient.

[0067] ② Evaporation loss of water G

[0068] G=R×S×Δt%

[0069] Where R represents the amount of circulating cooling water, Δt represents the temperature difference between the circulating cooling water entering and leaving the water unit; S represents the evaporation loss coefficient, which is selected from the parameter table based on the temperature of the circulating cooling water before entering the water unit.

[0070] ③Splashing water volume Q

[0071] Q=R·k2

[0072] Where: R represents the circulating cooling water volume, k2 represents the splash loss rate, which can be obtained by selecting from the parameter table.

[0073] For the above parameter table, please refer to the relevant tables listed in the appendix of the General Rules for Water Balance Test GB12452-2008.

[0074] Then, calculate the measurement loss value = water consumption - drainage - water consumption.

[0075] For step S102:

[0076] The water-using unit to be tested can provide the daily product output. When taking one day as the measurement period, it is important to select a date when the water-using unit can reach the average production level to ensure the representativeness of the sample.

[0077] For step S104:

[0078] In this embodiment, the annual cumulative water consumption value is based on the water consumption data of the water user in the previous year. This can be obtained from the water consumption statistics of the water user in the previous year. Alternatively, the annual cumulative water consumption value can be calculated using the water user's total annual circulating cooling water volume, combined with the equipment's annual total operating time and flow rate data, using the water consumption calculation method in step S101.

[0079] As a preferred embodiment, the annual average water consumption voucher value can be obtained from the water supply company's statistical data from the previous year, or from the water consumption fee voucher of the water user from the previous year; the annual average drainage voucher value can be obtained from the water user's drainage pipe flow statistics from the previous year, or from the water user's sewage discharge and treatment fee voucher from the previous year. Specifically, in actual water balance testing, the water consumption fee voucher can be a water fee invoice or payment receipt from the water plant, and the drainage voucher can be a sewage discharge fee invoice.

[0080] For step S105:

[0081] As a preferred implementation, when the daily error value is greater than 50%, it is determined that there is a leakage problem in the pipe network of the water-using unit to be tested, and the leakage point needs to be found immediately.

[0082] As a preferred implementation, the credibility of the annual average loss value must also be determined. If the annual average loss value / annual average water consumption certificate value is ≤ 20%, the annual average loss value is considered credible; otherwise, it is unreliable and anomaly exists.

[0083] As a preferred embodiment, when the annual average missing value is unreliable or the annual average missing value data is missing, it is determined according to the following conditions: if the daily measured missing value / daily water consumption is ≤20%, then the daily measured missing value is determined to be credible and there is no abnormality; otherwise, it is unreliable and there is an abnormality.

[0084] Through the above steps, when the measurement loss value of the water-using unit to be tested is credible and there is no abnormality, it can be considered that the water balance test of the water-using unit is qualified.

[0085] As a preferred embodiment, when it is determined that the daily measurement loss value is abnormal, continuous weekly measurement of water balance detection is performed on the water user unit to be tested, and steps S101-S105 are repeated for 7 consecutive days.

[0086] If the daily error value exceeds 25% on any given day during a seven-day weekly measurement, the water user's pipe network is considered leaky and requires prompt investigation. Similarly, if the daily error value exceeds 50% on any given day during these seven days, the water user's pipe network is considered leaky and requires prompt investigation. If the weekly measurement shows no abnormalities for seven consecutive days, the abnormality on that day can be considered isolated and can be eliminated.

[0087] As a preferred embodiment, the dynamic water balance detection method of the present application also includes: dividing the water circulation system of the water-using unit to be tested into multiple subsystems, and calculating the water consumption, drainage, water consumption and measurement loss value of each subsystem respectively according to the method of step S101; judging whether each subsystem within the measurement period has achieved water balance based on the water consumption and measurement loss value of each subsystem; when the measurement loss value / water consumption is greater than 20%, it is judged that the subsystem has not achieved water balance; when the measurement loss value / water consumption is ≤20%, it is judged that the subsystem has achieved water balance.

[0088] Regarding the division of subsystems, the dynamic water circulation system can be divided into multiple subsystems based on the pipe connections and drainage properties of the water circulation system. For example, taking a thermal power plant as an example, the subsystems can be divided into an ash flushing water system, a coal transportation water system, a boiler water system, a cooling water system, a flue gas desulfurization water system, and other water-using systems. When the water circulation system of the water-using unit to be tested can be easily divided into various subsystems, and the daily water volume data of each subsystem is fully recorded and statistically analyzed, it is possible to conduct water balance tests on each subsystem separately, or, depending on actual needs, only test one or several key subsystems.

[0089] Dividing the subsystems and conducting separate water balance tests is particularly important for large water consumers with large production scales and high water consumption. This is because the overall water balance does not mean that each subsystem also maintains water balance. For example, if the water units are divided into five categories: A, B, C, D, and E, if the water flow data corresponding to water unit A decreases, while the water flow data corresponding to water unit C increases, and the decreased data is consistent with the increased data, if only the overall water flow data is tested, it will appear to be water balanced, but in fact, the subsystems corresponding to water unit A and the subsystems corresponding to water unit C are in a water imbalance state. It can be seen that by dividing the subsystems, the defects and deficiencies caused by the "peak shaving and valley filling" effect when summing the water volume data between the subsystems during the overall water balance test can be overcome, thereby improving the accuracy and comprehensiveness of water balance detection.

[0090] In addition, when the water-using unit to be tested is large and the water balance sampling work cannot be completed in a short period of time, it is also possible to accurately detect one or several representative subsystems (such as workshops with large water consumption and water use links that often have leakages in similar enterprises) based on the production conditions and water use properties of the water-using unit to be tested, thereby achieving accurate and efficient water balance detection.

[0091] On the other hand, the embodiment of the present application also provides a dynamic water balance detection device, such as Figure 2 As shown, including:

[0092] The measuring unit 10 includes a flow data acquisition module 11, a water volume calculation module 12, and a leakage value calculation module 13;

[0093] Wherein: the flow data acquisition module 11 is used to acquire and store the water inlet flow data and the water outlet flow data of the water user to be measured within the measurement period; the water volume calculation module 12 is used to retrieve the original flow data used for the statistics and calculation of water consumption, drainage and water consumption from the flow data acquisition module, and perform calculations to obtain water consumption, drainage and water consumption values; the leakage value calculation module 13 is used to calculate the measurement leakage value based on the water consumption, drainage and water consumption values ​​obtained by the water volume calculation module;

[0094] The output value data unit 20 is used to input and store the output of products produced by the water-using unit to be measured during the measurement period;

[0095] The annual value statistics unit 30 is used to input and store the annual cumulative value of water consumption of the water user to be tested, as well as the annual average water consumption voucher value and the annual average drainage voucher value;

[0096] The error value calculation unit 40 includes a data retrieval module 41 for retrieving the measurement loss value from the measurement unit, the product output from the output value data unit, and the annual cumulative value of water consumption, the annual average water consumption voucher value, and the annual average water discharge voucher value from the annual value statistics unit; an error value calculation module 42 for calculating the statistical error value based on the values ​​of the data retrieval units;

[0097] The determination unit 50 is used to determine whether the measurement loss value is abnormal.

[0098] As a preference, it is possible to determine whether the measurement loss value is abnormal based on the size of the error value:

[0099] When the error value is greater than 25%, it is determined that the measurement loss value is abnormal and an abnormality report is output;

[0100] When the error value is ≤25%, it is determined that the measurement loss value and the annual average loss value are both credible, there is no abnormality, and a normal report is output.

[0101] Alternatively, if the average annual loss value / the average annual water consumption certificate value is ≤ 20%, the average annual loss value is considered credible; otherwise, it is unreliable and an anomaly exists;

[0102] When the average annual loss value is unreliable or the average annual loss value data is missing, determine whether the measured loss value is abnormal based on the ratio of the measured loss value to the water consumption:

[0103] If the measurement loss value / water consumption ≤ 20%, the measurement loss value is determined to be credible and there is no abnormality; otherwise, it is determined to be unreliable and there is an abnormality.

[0104] In a specific implementation, those skilled in the art can clearly understand that the technology in the embodiments of the present application can be implemented by means of software plus a necessary general hardware platform. Based on this understanding, the technical solutions in the embodiments of the present application are essentially or the part that contributes to the prior art can be embodied in the form of a software product, which can be stored in a storage medium such as ROM / RAM, a magnetic disk, an optical disk, etc., and includes a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment of the present application or certain parts of the embodiments.

[0105] In this specification, the same or similar parts between the various embodiments can be referred to each other. In particular, for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the description in the method embodiment.

[0106] The present application has been described in detail above with reference to specific embodiments and exemplary examples. However, these descriptions should not be construed as limiting the present application. Those skilled in the art will appreciate that, without departing from the spirit and scope of the present application, various equivalent substitutions, modifications, or improvements may be made to the technical solutions and implementations of the present application, all of which fall within the scope of the present application. The scope of protection of the present application shall be determined by the appended claims.

Claims

1. A dynamic water balance detection method, characterized in that: The following steps are involved: Step S101: Obtain the inlet flow data and outlet flow data of the water-using unit to be measured within the measurement period, and calculate the water consumption, drainage volume, and water consumption, thereby calculating the measurement loss value within the measurement period, where the measurement loss value = water consumption - drainage volume - water consumption; Step S102: obtaining the product output of the water-using unit to be tested during the measurement period; Step S103: Calculate the unit measurement loss value according to the product output and the measurement loss value within the measurement period using the following formula: Unit measurement loss value = measurement loss value / product output; Step S104: Calculate and obtain the annual cumulative water consumption value of the water user to be tested, and obtain the annual product output of the water user to be tested; obtain the annual average water consumption voucher value and annual average drainage voucher value of the water user to be tested, and calculate the annual average leakage value of the unit according to the following formula: Annual average leakage value = annual average water consumption certificate value - annual average drainage certificate value - annual cumulative water consumption value; Average annual loss value per unit = average annual loss value / annual output of product; Step S105: Compare the unit measurement loss value and the unit annual average loss value, calculate the error value, and determine whether the measurement loss value is abnormal; error value = (unit measurement loss value - unit annual average loss value) / unit annual average loss value; When the error value is greater than 25%, it is determined that the measurement loss value is abnormal; When the error value is ≤25%, it is determined that both the measured loss value and the annual average loss value are credible and there is no abnormality; The annual average water consumption voucher value is obtained from the statistical data of the water supply unit in the previous year or from the water fee voucher of the water user in the previous year; the annual average drainage voucher value is obtained from the statistical data of the drainage pipe flow of the water user in the previous year or from the sewage discharge treatment fee voucher of the water user in the previous year.

2. The dynamic water balance detection method according to claim 1, characterized in that: When the error value is greater than 50%, it is determined that there is a leakage problem in the pipe network of the water-using unit to be tested, and the leakage point needs to be found immediately.

3. The dynamic water balance detection method according to claim 1, characterized in that: If the annual average loss value / annual average water consumption certificate value is ≤ 20%, the annual average loss value is considered credible; otherwise, it is unreliable and anomaly exists; When the average annual missing value is unreliable or the average annual missing value data is missing, the following conditions shall be used for judgment: If the measurement loss value / water consumption ≤ 20%, the measurement loss value is determined to be credible and there is no abnormality; otherwise, it is unreliable and there is an abnormality.

4. The dynamic water balance detection method according to claim 1, characterized in that: The measurement period is 24 hours, or the minimum production period of the product; When the measurement period is 24 hours, the water balance test is performed according to the method of steps S101-S103, including: According to step S101, the daily water consumption, daily drainage, and daily water consumption are calculated to obtain the daily measurement loss value, and the daily product output is obtained; based on the daily product output and the daily measurement loss value, the unit daily measurement loss value is calculated according to the following formula: Unit daily measurement loss value = daily measurement loss value / daily product output; In step S105, the unit daily measurement loss value and the unit annual average loss value are compared to calculate the daily error value to determine whether the daily measurement loss value is abnormal; the daily error value = (unit daily measurement loss value - unit annual average loss value) / unit annual average loss value; If the error value on the day is greater than 25%, it is determined that the daily measurement loss value is abnormal; The error value on that day is ≤25%, which means that both the daily measurement loss value and the annual average loss value are reliable and there is no abnormality; When the average annual missing value is unreliable or the average annual missing value data is missing, the following conditions shall be used for judgment: If the daily measurement loss value / daily water consumption ≤ 20%, the daily measurement loss value is judged to be credible and there is no abnormality; otherwise, it is unreliable and there is an abnormality.

5. The dynamic water balance detection method according to claim 4, characterized in that: If the error value on the day is greater than 50%, it is determined that there is a leakage problem in the pipe network of the water-using unit to be tested, and the leakage point needs to be found immediately.

6. The dynamic water balance detection method according to claim 4, characterized in that: When it is determined that the daily measurement loss value is abnormal, continuous weekly measurement of water balance detection is performed on the water user unit to be tested, and steps S101-S105 are repeated for seven consecutive days.

7. The dynamic water balance detection method according to claim 5, characterized in that: During the seven consecutive days of weekly measurement, if the daily error value on a certain day is greater than 25%, it is determined that there is a leakage problem in the pipe network of the water-using unit to be tested, and the leakage point needs to be found in time.

8. The dynamic water balance detection method according to any one of claims 1 to 7, characterized in that: Also includes: Divide the water circulation system of the water-using unit to be tested into multiple subsystems, and calculate the water consumption, drainage, water consumption and measurement loss value of each subsystem according to the method of step S101; Based on the water consumption of each subsystem and the measurement loss value, it is judged whether each subsystem has achieved water balance within the measurement period; when the measurement loss value / water consumption is greater than 20%, it is judged that the subsystem has not achieved water balance; when the measurement loss value / water consumption is ≤20%, it is judged that the subsystem has achieved water balance.

9. A dynamic water balance detection device capable of implementing the dynamic water balance detection method according to any one of claims 1 to 7, characterized in that: include: A measuring unit, comprising a flow data acquisition module, a water volume calculation module, and a leakage value calculation module; Wherein: the flow data acquisition module is used to acquire and store the water inlet flow data and the water outlet flow data of the water-using unit to be measured within the measurement period; the water volume calculation module is used to retrieve the original flow data used for the statistics and calculation of water consumption, drainage and water consumption from the flow data acquisition module, and perform calculations to obtain the water consumption, drainage and water consumption values; the leakage value calculation module is used to calculate the measurement leakage value based on the water consumption, drainage and water consumption values ​​obtained by the water volume calculation module; The output value data unit is used to input and store the output of products produced by the water-consuming unit to be measured during the measurement period; The annual value statistics unit is used to input and store the annual cumulative value of water consumption of the water-using unit to be tested, as well as the annual average water consumption voucher value and the annual average drainage voucher value; The error value calculation unit includes a data retrieval module for retrieving the measurement loss value from the measurement unit, the product output from the output value data unit, and the annual cumulative value of water consumption, the annual average water consumption voucher value, and the annual average water discharge voucher value from the annual value statistics unit; the error value calculation module is used to calculate the statistical error value based on the values ​​of the data retrieval unit; The determination unit is used to determine whether the measurement loss value is abnormal.

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