Filter filth blockage monitoring method, system and equipment and storage medium

Abstract

The invention relates to the technical field of circulating system control, in particular to a filter filth blockage monitoring method, system and equipment and a storage medium. The invention aims to solve the problem of inaccurate filth blockage judgment of the filter. The method is suitable for the circulating system, the circulating system comprises a circulating pump unit, a heat exchanger and a filter which are sequentially connected through a pipeline, the circulating pump unit comprises a plurality of circulating pumps which are connected into the circulating system in parallel, and the circulating pumps are provided with a plurality of gears from low to high according to the running frequency; the method comprises the steps that whether filth blockage happens to a filter or not is judged by comparing the real-time running number of circulating pumps, the real-time running total gear number, the real-time pressure difference value of the filter and the real-time pressure difference value of a heat exchanger with preset values; wherein the filter real-time pressure difference value is the difference value between the filter inlet real-time pressure value and the filter outlet real-time pressure value, and the heat exchanger real-time pressure difference value is the difference value between the heat exchanger inlet real-time pressure value and the heat exchanger outlet real-time pressure value.

Description

Technical Field

[0001] This invention relates to the field of circulating system control technology, and more specifically, to a method, system, device, and storage medium for monitoring filter clogging. Background Technology

[0002] Liquid cooling is one of the primary methods for temperature control in data centers. The cleanliness of the coolant in the liquid cooling system is crucial for ensuring its stable and reliable operation. Therefore, throughout the liquid cooling system's lifespan, a filtration unit is required to treat the coolant and meet the required particle size distribution. As the liquid cooling system operates, impurities accumulate inside the filtration unit, increasing its resistance and affecting the system's safe and reliable operation. Therefore, when the filtration unit resistance reaches a certain threshold, it is typically necessary to clean and maintain the filtration unit to restore its functional requirements.

[0003] In existing technologies, pressure sensors are typically installed at the inlet and outlet of the filter to monitor the pressure of the filter unit and determine whether it meets the requirements for use in a liquid cooling system. This method has a large monitoring error and cannot meet the requirements of the liquid cooling system for dirt and clogging at all operating points. It is prone to false alarms (alarms are triggered when the alarm state has not been reached) or misleading alarms (the alarm state is reached but no alarm is triggered). Summary of the Invention

[0004] The present invention aims to overcome at least one of the defects of the prior art described above, and provides a method, system, device and storage medium for monitoring filter clogging, in order to solve the problem of inaccurate detection of filter clogging.

[0005] The first objective of this invention is to provide a method for monitoring filter clogging, applicable to a circulating system. The circulating system includes a circulating pump unit, a heat exchanger, and a filter connected sequentially via pipelines. The circulating pump unit includes several circulating pumps connected in parallel to the circulating system, and the circulating pumps are set with several speeds from low to high according to their operating frequency. Get the real-time number of running units, the total number of gears in real-time, the real-time pressure value of the filter inlet, the real-time pressure value of the filter outlet, the real-time pressure value of the heat exchanger inlet, and the real-time pressure value of the heat exchanger outlet. Based on the comparison between the real-time number of running filters and the preset number of filters, the comparison between the real-time total number of gears and the preset number of gears, the comparison between the real-time differential pressure value of the filter and the preset differential pressure value of the filter, and the comparison between the real-time differential pressure value of the heat exchanger and the preset differential pressure value of the heat exchanger, it is determined whether the filter is clogged. Wherein, the real-time running number is the number of circulating pumps in operation, the real-time total number of gears is the sum of the operating gears of the circulating pumps in operation, the real-time filter pressure difference is the difference between the real-time pressure value at the filter inlet and the real-time pressure value at the filter outlet, and the real-time heat exchanger pressure difference is the difference between the real-time pressure value at the heat exchanger inlet and the real-time pressure value at the heat exchanger outlet.

[0006] Based on practical applications and theoretical research, it is known that under the same clogging conditions, the pressure difference across the filter is closely related to the operating condition of the circulation system. This invention combines the operating status of the circulation pump and the pressure difference across the heat exchanger with the pressure difference across the filter to achieve a multi-dimensional assessment of the filter clogging status. The operating status of the circulation pump and the pressure difference across the heat exchanger can comprehensively reflect the actual operating condition of the circulation system. Therefore, this invention can accurately obtain the filter clogging status, provide filter clogging alerts, optimize the user's filter maintenance cycle, and avoid false alarms and misleading alarms in the circulation system.

[0007] In some embodiments, the preset differential pressure value of the filter includes a first preset differential pressure value and a second preset differential pressure value, and the preset differential pressure value of the heat exchanger includes a third preset differential pressure value and a fourth preset differential pressure value, wherein the first preset differential pressure value is greater than the second preset differential pressure value, and the third preset differential pressure value is greater than the fourth preset differential pressure value. The method of determining whether a filter is clogged based on comparisons of the real-time number of running filters with the preset number, the real-time total number of gears with the preset number of gears, the real-time differential pressure value of the filter with the preset differential pressure value of the filter, and the real-time differential pressure value of the heat exchanger with the preset differential pressure value of the heat exchanger includes: if the real-time number of running filters is greater than the preset number, and if the real-time total number of gears is greater than the preset number of gears, determining whether a filter is clogged based on comparisons of the real-time differential pressure value of the filter with the first preset differential pressure value, and comparisons of the real-time differential pressure value of the heat exchanger with the third preset differential pressure value.

[0008] It is understood that the number of operating pumps and their operating speeds can reflect the current flow rate of the circulating system. The internal flow channels of a heat exchanger remain relatively stable throughout the system's lifespan and are less prone to accumulating impurities that affect flow, unlike a filter. Therefore, a heat exchanger can be considered a "standard flow meter," with its pressure difference proportional to the square of the flow rate. In other words, the real-time pressure difference of the heat exchanger reflects the true flow rate of the circulating system. This pressure difference, along with the actual number of operating pumps and the total number of operating speeds, can cross-verify the actual flow rate of the circulating system, thus accurately reflecting the true flow rate. This invention accurately verifies that the current circulating system is in a high-flow-rate condition by verifying that the actual number of operating pumps, the total number of operating speeds, and the real-time pressure difference of the heat exchanger are greater than corresponding preset values. At this point, by comparing the actual pressure difference of the filter with a higher set threshold (the first preset pressure difference value), it is possible to determine whether the increase in the filter's pressure difference has exceeded the normal range of change caused by a large system flow rate, thereby accurately judging the actual clogging status of the filter.

[0009] In some embodiments, determining whether the filter is clogged based on the comparison between the real-time differential pressure value of the filter and the first preset differential pressure value, and the comparison between the real-time differential pressure value of the heat exchanger and the third preset differential pressure value, includes: determining that the filter is clogged when the real-time differential pressure value of the filter is greater than or equal to the first preset differential pressure value, and the real-time differential pressure value of the heat exchanger is greater than or equal to the third preset differential pressure value.

[0010] It is understandable that when the pressure difference of the heat exchanger and the operating status of the circulating pump are used to verify that the circulating system is in a high-flow-rate condition, the real-time pressure difference will increase even if the filter is not clogged. Therefore, this invention sets a relatively high pressure difference threshold (first set pressure difference value). Under high-flow-rate conditions, if the real-time pressure difference of the heat exchanger exceeds the first set pressure difference value, it indicates that the increase in the pressure difference of the heat exchanger is not simply caused by the increase in the flow rate of the circulating system, thereby accurately monitoring the filter clogging.

[0011] In some implementations, determining whether the filter is clogged based on the comparison of the real-time number of running filters with the preset number, the comparison of the real-time total number of gears with the preset number of gears, the comparison of the real-time differential pressure value of the filter with the preset differential pressure value of the filter, and the comparison of the real-time differential pressure value of the heat exchanger with the preset differential pressure value of the heat exchanger, includes: if the real-time number of running filters is greater than the preset number, and the real-time total number of gears is less than or equal to the preset number of gears, determining whether the filter is clogged based on the comparison of the real-time differential pressure value of the heat exchanger with the fourth preset differential pressure value, and the comparison of the real-time differential pressure value of the filter with the third preset differential pressure value.

[0012] It is understandable that by monitoring the daily operating parameters of the circulation system and the factory parameters of the equipment, it is possible to initially distinguish between low and high flow rates based on the real-time total speed of the circulating pump in operation. Therefore, it is easy to set a preset speed as the boundary between low and high flow rates. When the real-time total speed is less than or equal to the preset speed, it can be initially determined that the circulation system is in a low flow condition. In this case, the real-time differential pressure of the heat exchanger will theoretically decrease. Therefore, a comparison threshold (fourth preset differential pressure value) smaller than that under high flow conditions will be set. By comparing the real-time differential pressure of the heat exchanger with the fourth preset differential pressure value, it is verified whether the actual flow rate of the current circulation system is in the preset low flow condition. Then, based on the relationship between the real-time differential pressure of the filter and the third preset differential pressure value matching the low flow condition, an accurate judgment on the clogging situation can be made.

[0013] In some embodiments, determining whether the filter is clogged based on the comparison between the real-time differential pressure value of the heat exchanger and the fourth preset differential pressure value, and the comparison between the real-time differential pressure value of the filter and the third preset differential pressure value, includes: determining that the filter is clogged when the real-time differential pressure value of the heat exchanger is less than or equal to the fourth preset differential pressure value and the real-time differential pressure value of the filter is greater than or equal to the second preset differential pressure value.

[0014] It is understandable that if the real-time differential pressure value of the heat exchanger is less than or equal to the fourth preset differential pressure value, it can be verified that the current real-time total number of gears is indeed consistent with the low flow condition, thus confirming that the current circulation system is in a low flow condition. At this time, by setting a second preset differential pressure value for the filter that is smaller than that for the high flow condition, and by comparing the real-time differential pressure value of the filter to be greater than or equal to the second preset differential pressure value, it can be accurately determined that the filter is clogged.

[0015] In some implementations, determining whether the filter is clogged based on the comparison of the real-time number of running filters with the preset number, the comparison of the real-time total number of gears with the preset number of gears, the comparison of the real-time differential pressure value of the filter with the preset differential pressure value of the filter, and the comparison of the real-time differential pressure value of the heat exchanger with the preset differential pressure value of the heat exchanger includes: when the real-time number of running filters is less than or equal to the preset number, determining whether the filter is clogged based on the comparison of the real-time differential pressure value of the heat exchanger with the fourth preset differential pressure value, and the comparison of the real-time differential pressure value of the filter with the second preset differential pressure value.

[0016] It is understandable that, given the same specifications and power of the circulating pumps, the number of operating circulating pumps is positively correlated with the flow rate of the circulating system. Therefore, by monitoring the daily operating parameters of the circulating system and the factory parameters of the equipment, it is possible to initially distinguish between low and high flow rates based on the real-time number of circulating pumps in operation. At this point, it is easy to set a preset number corresponding to the low flow rate condition. Then, by comparing the real-time number of pumps with the preset number, it can be preliminarily determined whether the circulating system is in a high or low flow rate condition. In this invention, if the real-time number of pumps in operation is less than the preset number, it can be preliminarily determined that the current circulating system is in a low flow rate condition. Based on this, by comparing the real-time differential pressure value of the heat exchanger with the fourth preset differential pressure value corresponding to the low flow rate condition, the current low flow rate condition can be accurately verified. Furthermore, by comparing the real-time differential pressure value of the filter with the second preset differential pressure value corresponding to the low flow rate condition, the current filter clogging status can be accurately determined.

[0017] In some embodiments, determining whether the filter is clogged based on the comparison between the real-time differential pressure value of the heat exchanger and the fourth preset differential pressure value, and the comparison between the real-time differential pressure value of the filter and the second preset differential pressure value, includes: determining that the filter is clogged when the real-time differential pressure value of the heat exchanger is less than or equal to the fourth preset differential pressure value and the real-time differential pressure value of the filter is greater than or equal to the second preset differential pressure value.

[0018] It is understandable that if the real-time differential pressure value of the heat exchanger is less than or equal to the fourth preset differential pressure value, it can be verified that the current operating condition of the circulating pump is indeed consistent with the low flow condition, thus confirming that the current circulating system is in a low flow condition. At this time, by setting a second preset differential pressure value for the filter that is smaller than that for the high flow condition, and by comparing the real-time differential pressure value of the filter to be greater than or equal to the second preset differential pressure value, it can be accurately determined that the filter is clogged.

[0019] The second objective of this invention is to provide a filter clogging monitoring system, comprising: The acquisition module is used to acquire the real-time number of running pumps, the operating speed of the circulating pumps in operation, the real-time pressure value of the filter inlet, the real-time pressure value of the filter outlet, the real-time pressure value of the heat exchanger inlet, and the real-time pressure value of the heat exchanger outlet. The calculation module is used to calculate the real-time total number of gears, the real-time differential pressure value of the filter, and the real-time differential pressure value of the heat exchanger. The judgment module is used to compare the real-time number of running filters with the preset number of filters, the real-time total number of gears with the preset number of gears, the real-time differential pressure value of the filter with the preset differential pressure value of the filter, and the real-time differential pressure value of the heat exchanger with the preset differential pressure value of the heat exchanger, in order to determine whether the filter is clogged. Wherein, the real-time running number is the number of circulating pumps in operation, the real-time total number of gears is the sum of the operating gears of the circulating pumps in operation, the real-time filter pressure difference is the difference between the real-time pressure value at the filter inlet and the real-time pressure value at the filter outlet, and the real-time filter pressure difference is the difference between the real-time pressure value at the heat exchanger inlet and the real-time pressure value at the heat exchanger outlet.

[0020] A third objective of this invention is to provide an electronic device comprising: Memory, used to store one or more computer programs; A processor, when the one or more computer programs are executed by the processor, implements the filter clogging monitoring method.

[0021] A fourth objective of this invention is to provide a computer-readable storage medium for storing a computer program that, when executed, implements the filter clogging monitoring method described above.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention incorporates the operating status of the circulating pump and the pressure difference of the heat exchanger into the monitoring of filter clogging. It can fully combine the influence of the actual operating conditions of the circulating system on the pressure difference before and after the filter, thereby jointly monitoring the pressure difference value before and after the filter, achieving the effect of judging the filter clogging status from multiple dimensions. The present invention can accurately obtain the filter clogging status, provide filter clogging alerts, optimize the user's filter maintenance cycle, and avoid false alarms and false alarms in the circulating system. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the cyclic system structure according to some embodiments of the present invention.

[0024] Figure 2 This is a flowchart of the filter clogging monitoring method of the present invention.

[0025] Figure 3 This is a schematic diagram of the functional modules of the filter clogging monitoring system of the present invention.

[0026] Reference numerals: Primary loop 1, Secondary loop 2, Plate heat exchanger 3, Circulation pump unit 4, First circulation pump 41, Second circulation pump 42, Filter, First pressure sensor 6, Second pressure sensor 7, Third pressure sensor 8, Acquisition module 100, Calculation module 200, Judgment module 300. Detailed Implementation

[0027] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the invention. To better illustrate the following embodiments, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions; it is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0028] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0029] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus. Example 1 The primary objective of this invention is to provide a method for monitoring filter clogging, applicable to circulating systems. For specific implementation, refer to... Figure 1 The circulation system includes a primary loop 1, a secondary loop 2, and a plate heat exchanger 3. Both the primary loop 1 and the secondary loop 2 are connected to the plate heat exchanger 3, and heat exchange occurs through the plate heat exchanger 3. For example, the secondary loop 2 includes a circulation pump unit 4 and a filter 5. The pump outlet of the circulation pump unit 4 is connected to the secondary inlet of the plate heat exchanger 3 via a pipeline, and the outlet of the plate heat exchanger 3 is connected to the inlet of the filter 5 via a pipeline. To adapt to various operating conditions, the circulation pump unit 4 includes several circulation pumps connected in parallel to the secondary loop 2. The circulation pumps are set with several speed settings from low to high according to their operating frequency. In this embodiment, a first circulation pump 41 and a second circulation pump 42 are provided. It is easy to understand that in actual use, the pump inlet of the circulation pump unit 4 is connected to the outlet of the heat dissipation terminal via a pipeline, and the outlet of the filter 5 is connected to the inlet of the heat dissipation terminal via a pipeline.

[0030] To monitor pressure changes at various points in the secondary loop 2, a first pressure sensor 6 is installed on the pipeline between the plate heat exchanger 3 and the circulating pump unit 4 to obtain the real-time inlet pressure value of the plate heat exchanger 3; a second pressure sensor 7 is installed on the pipeline between the plate heat exchanger 3 and the filter 5 to obtain the real-time outlet pressure value of the plate heat exchanger 3. In this embodiment, since there are no other components between the plate heat exchanger 3 and the filter 5, the second pressure sensor 7 is also used to obtain the real-time inlet pressure value of the filter 5; in addition, a third pressure sensor 8 is installed on the pipeline between the outlet of the filter 5 and the heat dissipation terminal to obtain the real-time outlet pressure value of the filter 5.

[0031] In other embodiments, the circulation system may also be equipped with other functional modules and other pipelines according to actual needs, such as flow detection sensors, expansion tanks, differential pressure regulating bypasses, exhaust valves, safety valves, etc. These components are common components of circulation systems, and their functions and settings are well known to those skilled in the art, so they will not be described in detail here.

[0032] refer to Figure 2 Based on the above-described circulation system, the filter clogging monitoring method of the present invention includes: S100. Obtain the real-time number of running pumps, real-time speed, real-time pressure value at the filter inlet, real-time pressure value at the filter outlet, real-time pressure value at the heat exchanger inlet, and real-time pressure value at the heat exchanger outlet. The real-time number of running pumps refers to the number of circulating pumps in operation, and the real-time speed refers to the corresponding operating speed of the circulating pumps in operation. Specifically, the real-time pressure value at the filter inlet and the real-time pressure value at the heat exchanger outlet are obtained through the second pressure sensor 7, the real-time pressure value at the filter outlet is obtained through the third pressure sensor 8, and the real-time pressure value at the heat exchanger inlet is obtained through the first pressure sensor 6. S200. Calculate the total number of real-time speed ranges, the real-time differential pressure of the filter, and the real-time differential pressure of the heat exchanger. The total number of real-time speed ranges is the sum of the operating speeds of the circulating pump in operation. The real-time differential pressure of the filter is the difference between the real-time pressure at the filter inlet and the real-time pressure at the filter outlet. The real-time differential pressure of the heat exchanger is the difference between the real-time pressure at the heat exchanger inlet and the real-time pressure at the heat exchanger outlet. S300. Based on the comparison between the real-time number of running filters and the preset number of filters, the comparison between the real-time total number of gears and the preset number of gears, the comparison between the real-time differential pressure value of the filter and the preset differential pressure value of the filter, and the comparison between the real-time differential pressure value of the heat exchanger and the preset differential pressure value of the heat exchanger, determine whether the filter is clogged.

[0033] Based on practical applications and theoretical research, it is known that under the same clogging conditions, the pressure difference across the filter is closely related to the operating conditions of the circulation system. In particular, the flow rate of the circulation system has a significant impact on the pressure difference across the filter. It is easy to understand that when the filter becomes clogged, the pressure difference across the filter will change with the flow rate of the circulation system. Therefore, if the accuracy of judging whether clogging has occurred is limited by simply monitoring the change in the pressure difference across the filter, it is impossible to accurately monitor clogging under various operating conditions.

[0034] For the reasons mentioned above, this invention introduces the operating status of the circulating pump, the pressure difference of the heat exchanger, and the pressure difference before and after the filter to achieve a multi-dimensional assessment of the filter clogging status. The operating status of the circulating pump and the pressure difference before and after the heat exchanger can comprehensively reflect the actual operating conditions of the circulating system. Therefore, this invention can accurately obtain the filter clogging status, provide filter clogging alerts, optimize the user's filter maintenance cycle, and avoid false alarms and misleading alarms in the circulating system.

[0035] In practical implementation, in order to achieve accurate monitoring of dirt blockage, this invention sets different judgment thresholds for the preset differential pressure values ​​of the filter and the heat exchanger under high flow and low flow conditions. For ease of description, the preset differential pressure value of the filter includes a first preset differential pressure value and a second preset differential pressure value, and the preset differential pressure value of the heat exchanger includes a third preset differential pressure value and a fourth preset differential pressure value. The first preset differential pressure value is greater than the second preset differential pressure value, and the third preset differential pressure value is greater than the fourth preset differential pressure value.

[0036] In some implementations, step S300 includes: S310. If the number of real-time running filters is greater than the preset number, and the total number of real-time gears is greater than the preset number of gears, determine whether the filter is clogged based on the comparison between the real-time differential pressure value of the filter and the first preset differential pressure value, and the comparison between the real-time differential pressure value of the heat exchanger and the third preset differential pressure value.

[0037] It is understood that the number of operating pumps and their operating speeds can reflect the current flow rate of the circulating system. The internal flow channels of a heat exchanger remain relatively stable throughout the system's lifespan and are less prone to accumulating impurities that affect flow, unlike a filter. Therefore, a heat exchanger can be considered a "standard flow meter," with its pressure difference proportional to the square of the flow rate. In other words, the real-time pressure difference of the heat exchanger reflects the true flow rate of the circulating system and can be cross-verified with the actual number of operating pumps and the total number of operating speeds. This invention accurately reflects the true flow rate of the circulating system by verifying that the actual number of operating pumps, the total number of operating speeds, and the real-time pressure difference of the heat exchanger are greater than corresponding preset values. At this point, by comparing the actual pressure difference of the filter with a higher set threshold (the first preset pressure difference value), it is possible to determine whether the increase in the filter's pressure difference has exceeded the normal range of change caused by a large system flow rate, thereby accurately judging the true degree of filter blockage. For example, the first circulation pump 41 and the second circulation pump 42 of the present invention have the same specifications, and each is set with 7 gears from 0 to 6 according to the operating frequency from low to high. In specific implementation, the preset number is set to 1, and the preset gears of the first circulation pump 41 and the second circulation pump 42 can be 3-5, that is, the preset number of gears can be 6-10. It should be emphasized that the preset number and the preset number of gears can be adjusted according to the actual number, specifications, and gear settings of the circulation pumps, which is easily understood by those skilled in the art and will not be elaborated here.

[0038] In some implementations, step S310 includes: S311 determines that the filter is clogged if the real-time differential pressure value of the filter is greater than or equal to the first preset differential pressure value and the real-time differential pressure value of the heat exchanger is greater than or equal to the third preset differential pressure value.

[0039] It is understandable that when the pressure difference of the heat exchanger and the operating status of the circulating pump are used to verify that the circulating system is in a high-flow-rate condition, the real-time pressure difference will increase even if the filter is not clogged. Therefore, this invention sets a relatively high pressure difference threshold (first set pressure difference value). Under high-flow-rate conditions, if the real-time pressure difference of the heat exchanger exceeds the first set pressure difference value, it indicates that the increase in the pressure difference of the heat exchanger is not simply caused by the increase in the flow rate of the circulating system, thereby accurately monitoring the filter clogging.

[0040] In some implementations, step S300 includes: S320. If the number of real-time running devices is greater than the preset number, and the total number of real-time gears is less than or equal to the preset number of gears, determine whether the filter is clogged based on the comparison between the real-time differential pressure value of the heat exchanger and the fourth preset differential pressure value, and the comparison between the real-time differential pressure value of the filter and the second preset differential pressure value.

[0041] It is understandable that by monitoring the daily operating parameters of the circulation system and the factory parameters of the equipment, it is possible to initially distinguish between low and high flow rates based on the real-time total speed of the circulating pump in operation. Therefore, it is easy to set a preset speed as the boundary between low and high flow rates. When the real-time total speed is less than or equal to the preset speed, it can be initially determined that the circulation system is in a low flow condition. In this case, the real-time differential pressure of the heat exchanger will theoretically decrease. Therefore, a comparison threshold (fourth preset differential pressure value) smaller than that under high flow conditions will be set. By comparing the real-time differential pressure of the heat exchanger with the fourth preset differential pressure value, it is verified whether the actual flow rate of the current circulation system is in the preset low flow condition. Then, based on the relationship between the real-time differential pressure of the filter and the third preset differential pressure value matching the low flow condition, an accurate judgment on the clogging situation can be made.

[0042] In some implementations, step S320 includes: S321. If the real-time differential pressure value of the heat exchanger is less than or equal to the fourth preset differential pressure value, and the real-time differential pressure value of the filter is greater than or equal to the second preset differential pressure value, it is determined that the filter is clogged.

[0043] It is understandable that if the real-time differential pressure value of the heat exchanger is less than or equal to the fourth preset differential pressure value, it can be verified that the current real-time total number of gears is indeed consistent with the low flow condition, thus confirming that the current circulation system is in a low flow condition. At this time, by setting a second preset differential pressure value for the filter that is smaller than that for the high flow condition, and by comparing the real-time differential pressure value of the filter to be greater than or equal to the second preset differential pressure value, it can be accurately determined that the filter is clogged.

[0044] In some implementations, step S300 includes: S330. When the number of real-time operating units is less than or equal to the preset number, determine whether the filter is clogged based on the comparison between the real-time differential pressure value of the heat exchanger and the fourth preset differential pressure value, and the comparison between the real-time differential pressure value of the filter and the second preset differential pressure value.

[0045] It is understandable that, given the same specifications and power of the circulating pumps, the number of operating circulating pumps is positively correlated with the flow rate of the circulating system. Therefore, by monitoring the daily operating parameters of the circulating system and the factory parameters of the equipment, it is possible to initially distinguish between low and high flow rates based on the real-time number of circulating pumps in operation. At this point, it is easy to set a preset number corresponding to the low flow rate condition. Then, by comparing the real-time number of pumps with the preset number, it can be preliminarily determined whether the circulating system is in a high or low flow rate condition. In this invention, if the real-time number of pumps in operation is less than the preset number, it can be preliminarily determined that the current circulating system is in a low flow rate condition. Based on this, by comparing the real-time differential pressure value of the heat exchanger with the fourth preset differential pressure value corresponding to the low flow rate condition, the current low flow rate condition can be accurately verified. Furthermore, by comparing the real-time differential pressure value of the filter with the second preset differential pressure value corresponding to the low flow rate condition, the current filter clogging status can be accurately determined.

[0046] In some implementations, step S330 includes: S331. If the real-time differential pressure value of the heat exchanger is less than or equal to the fourth preset differential pressure value, and the real-time differential pressure value of the filter is greater than or equal to the second preset differential pressure value, it is determined that the filter is clogged.

[0047] It is understandable that if the real-time differential pressure value of the heat exchanger is less than or equal to the fourth preset differential pressure value, it can be verified that the current operating condition of the circulating pump is indeed consistent with the low flow condition, thus confirming that the current circulating system is in a low flow condition. At this time, by setting a second preset differential pressure value for the filter that is smaller than that for the high flow condition, and by comparing the real-time differential pressure value of the filter to be greater than or equal to the second preset differential pressure value, it can be accurately determined that the filter is clogged.

[0048] A second objective of this invention is to provide a filter clogging monitoring system for performing the implemented filter clogging monitoring method. (See reference...) Figure 3 The filter clogging monitoring system includes: The acquisition module 100 is used to acquire the real-time number of running pumps, the operating speed of the circulating pumps in operation, the real-time pressure value of the filter inlet, the real-time pressure value of the filter outlet, the real-time pressure value of the heat exchanger inlet, and the real-time pressure value of the heat exchanger outlet. In specific implementation, the acquisition module 100 is used to execute Figure 2 For a detailed description of the acquisition module 100 shown in step 100, please refer to the description of step S100.

[0049] The calculation module 200 is used to calculate the real-time total number of gears, the real-time differential pressure value of the filter, and the real-time differential pressure value of the heat exchanger. In practical implementation, the calculation module 200 is used to execute... Figure 2For a detailed description of the calculation module 200 shown in step 200, please refer to the description of step S200.

[0050] The judgment module 300 is used to compare the real-time number of running filters with the preset number of filters, the real-time total number of gears with the preset number of gears, the real-time differential pressure value of the filter with the preset differential pressure value of the filter, and the real-time differential pressure value of the heat exchanger with the preset differential pressure value of the heat exchanger, in order to determine whether the filter is clogged. In specific implementation, the judgment module 300 is used to execute Figure 2 For a detailed description of the judgment module 300 shown in step 300, please refer to the description of step S300.

[0051] Wherein, the real-time running number is the number of circulating pumps in operation, the real-time total number of gears is the sum of the operating gears of the circulating pumps in operation, the real-time filter pressure difference is the difference between the real-time pressure value at the filter inlet and the real-time pressure value at the filter outlet, and the real-time filter pressure difference is the difference between the real-time pressure value at the heat exchanger inlet and the real-time pressure value at the heat exchanger outlet.

[0052] A third objective of this invention is to provide an electronic device comprising: Memory, used to store one or more computer programs; A processor, when the one or more computer programs are executed by the processor, implements the filter clogging monitoring method.

[0053] A fourth objective of this invention is to provide a computer-readable storage medium for storing a computer program that, when executed, implements the filter clogging monitoring method of this invention.

[0054] Obviously, the above-described embodiments of the present invention are merely examples for clearly illustrating the technical solution of the present invention, and are not intended to limit the specific implementation of the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the claims of the present invention should be included within the protection scope of the claims of the present invention.

Claims

1. A filter clogging monitoring method for a circulating system, characterized by, The circulating system comprises a circulating pump unit, a heat exchanger and a filter connected in sequence by pipelines, wherein the circulating pump unit comprises several circulating pumps connected in parallel to the circulating system, and the circulating pumps are provided with several gears in the order of low to high according to the operating frequency; The method comprises: acquiring the real-time number of operating circulating pumps, the real-time total number of gears, the real-time pressure value at the inlet of the filter, the real-time pressure value at the outlet of the filter, the real-time pressure value at the inlet of the heat exchanger and the real-time pressure value at the outlet of the heat exchanger; judging whether the filter is dirty and blocked according to the comparison between the real-time number of operating circulating pumps and the preset number, the comparison between the real-time total number of gears and the preset number, the comparison between the real-time pressure difference of the filter and the preset pressure difference of the filter, and the comparison between the real-time pressure difference of the heat exchanger and the preset pressure difference of the heat exchanger. The real-time number of operating circulating pumps is the number of circulating pumps in the operating state, the real-time total number of gears is the sum of the operating gears of the circulating pumps in the operating state, the real-time pressure difference of the filter is the difference between the real-time pressure value at the inlet of the filter and the real-time pressure value at the outlet of the filter, and the real-time pressure difference of the heat exchanger is the difference between the real-time pressure value at the inlet of the heat exchanger and the real-time pressure value at the outlet of the heat exchanger.

2. The method of claim 1, wherein, The preset pressure difference of the filter comprises a first preset pressure difference and a second preset pressure difference, and the preset pressure difference of the heat exchanger comprises a third preset pressure difference and a fourth preset pressure difference, wherein the first preset pressure difference is greater than the second preset pressure difference, and the third preset pressure difference is greater than the fourth preset pressure difference. The judgment of whether the filter is dirty and blocked according to the comparison between the real-time number of operating circulating pumps and the preset number, the comparison between the real-time total number of gears and the preset number, the comparison between the real-time pressure difference of the filter and the preset pressure difference of the filter, and the comparison between the real-time pressure difference of the heat exchanger and the preset pressure difference of the heat exchanger comprises: in the case that the real-time number of operating circulating pumps is greater than the preset number, if the real-time total number of gears is greater than the preset number, the judgment of whether the filter is dirty and blocked is made according to the comparison between the real-time pressure difference of the filter and the first preset pressure difference, and the comparison between the real-time pressure difference of the heat exchanger and the third preset pressure difference.

3. The method of claim 2, wherein, The judgment of whether the filter is dirty and blocked according to the comparison between the real-time pressure difference of the filter and the first preset pressure difference, and the comparison between the real-time pressure difference of the heat exchanger and the third preset pressure difference comprises: in the case that the real-time pressure difference of the filter is greater than or equal to the first preset pressure difference, and the real-time pressure difference of the heat exchanger is greater than or equal to the third preset pressure difference, it is determined that the filter is dirty and blocked.

4. The method of claim 2, wherein, The judgment of whether the filter is dirty and blocked according to the comparison between the real-time number of operating circulating pumps and the preset number, the comparison between the real-time total number of gears and the preset number, the comparison between the real-time pressure difference of the filter and the preset pressure difference of the filter, and the comparison between the real-time pressure difference of the heat exchanger and the preset pressure difference of the heat exchanger comprises: in the case that the real-time number of operating circulating pumps is greater than the preset number, if the real-time total number of gears is less than or equal to the preset number, the judgment of whether the filter is dirty and blocked is made according to the comparison between the real-time pressure difference of the heat exchanger and the fourth preset pressure difference, and the comparison between the real-time pressure difference of the filter and the second preset pressure difference.

5. The method of claim 1, wherein, The method comprises the following steps: acquiring the real-time running number, the running gear of the circulating pump in the running state, the filter inlet real-time pressure value, the filter outlet real-time pressure value, the heat exchanger inlet real-time pressure value and the heat exchanger outlet real-time pressure value; calculating the real-time total gear number, the filter real-time pressure difference value and the heat exchanger real-time pressure difference value; comparing the real-time running number with the preset number, the real-time total gear number with the preset gear number, the filter real-time pressure difference value with the filter preset pressure difference value and the heat exchanger real-time pressure difference value with the heat exchanger preset pressure difference value, so as to determine whether the filter is dirty and blocked.

6. The method according to any one of claims 2-5, characterized in that, The method comprises the following steps: acquiring the real-time running number, the running gear of the circulating pump in the running state, the filter inlet real-time pressure value, the filter outlet real-time pressure value, the heat exchanger inlet real-time pressure value and the heat exchanger outlet real-time pressure value; calculating the real-time total gear number, the filter real-time pressure difference value and the heat exchanger real-time pressure difference value; comparing the real-time running number with the preset number, the real-time total gear number with the preset gear number, the filter real-time pressure difference value with the filter preset pressure difference value and the heat exchanger real-time pressure difference value with the heat exchanger preset pressure difference value, so as to determine whether the filter is dirty and blocked.

7. The method of claim 6, wherein, The method comprises the following steps: acquiring the real-time running number, the running gear of the circulating pump in the running state, the filter inlet real-time pressure value, the filter outlet real-time pressure value, the heat exchanger inlet real-time pressure value and the heat exchanger outlet real-time pressure value; calculating the real-time total gear number, the filter real-time pressure difference value and the heat exchanger real-time pressure difference value; comparing the real-time running number with the preset number, the real-time total gear number with the preset gear number, the filter real-time pressure difference value with the filter preset pressure difference value and the heat exchanger real-time pressure difference value with the heat exchanger preset pressure difference value, so as to determine whether the filter is dirty and blocked.

8. A filter clogging monitoring system characterized by comprising: The method comprises the following steps: acquiring the real-time running number, the running gear of the circulating pump in the running state, the filter inlet real-time pressure value, the filter outlet real-time pressure value, the heat exchanger inlet real-time pressure value and the heat exchanger outlet real-time pressure value; calculating the real-time total gear number, the filter real-time pressure difference value and the heat exchanger real-time pressure difference value; comparing the real-time running number with the preset number, the real-time total gear number with the preset gear number, the filter real-time pressure difference value with the filter preset pressure difference value and the heat exchanger real-time pressure difference value with the heat exchanger preset pressure difference value, so as to determine whether the filter is dirty and blocked. The method comprises the following steps: acquiring the real-time running number, the running gear of the circulating pump in the running state, the filter inlet real-time pressure value, the filter outlet real-time pressure value, the heat exchanger inlet real-time pressure value and the heat exchanger outlet real-time pressure value; calculating the real-time total gear number, the filter real-time pressure difference value and the heat exchanger real-time pressure difference value; comparing the real-time running number with the preset number, the real-time total gear number with the preset gear number, the filter real-time pressure difference value with the filter preset pressure difference value and the heat exchanger real-time pressure difference value with the heat exchanger preset pressure difference value, so as to determine whether the filter is dirty and blocked. The method comprises the following steps: acquiring the real-time running number, the running gear of the circulating pump in the running state, the filter inlet real-time pressure value, the filter outlet real-time pressure value, the heat exchanger inlet real-time pressure value and the heat exchanger outlet real-time pressure value; calculating the real-time total gear number, the filter real-time pressure difference value and the heat exchanger real-time pressure difference value; comparing the real-time running number with the preset number, the real-time total gear number with the preset gear number, the filter real-time pressure difference value with the filter preset pressure difference value and the heat exchanger real-time pressure difference value with the heat exchanger preset pressure difference value, so as to determine whether the filter is dirty and blocked. The method comprises the following steps: acquiring the real-time running number, the running gear of the circulating pump in the running state, the filter inlet real-time pressure value, the filter outlet real-time pressure value, the heat exchanger inlet real-time pressure value and the heat exchanger outlet real-time pressure value; calculating the real-time total gear number, the filter real-time pressure difference value and the heat exchanger real-time pressure difference value; comparing the real-time running number with the preset number, the real-time total gear number with the preset gear number, the filter real-time pressure difference value with the filter preset pressure difference value and the heat exchanger real-time pressure difference value with the heat exchanger preset pressure difference value, so as to determine whether the filter is dirty and blocked. The method comprises the following steps: acquiring the real-time running number, the running gear of the circulating pump in the running state, the filter inlet real-time pressure value, the filter outlet real-time pressure value, the heat exchanger inlet real-time pressure value and the heat exchanger outlet real-time pressure value; calculating the real-time total gear number, the filter real-time pressure difference value and the heat exchanger real-time pressure difference value; comparing the real-time running number with the preset number, the real-time total gear number with the preset gear number, the filter real-time pressure difference value with the filter preset pressure difference value and the heat exchanger real-time pressure difference value with the heat exchanger preset pressure difference value, so as to determine whether the filter is dirty and blocked.

9. An electronic device, comprising: ​ ​ ​ 10. A computer-readable storage medium, characterized in that, ​

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