Ultrafiltration SDI integrated detection multipath sample water switching device and control method thereof

Abstract

The invention relates to the field of chemical water treatment of power plants, in particular to an ultrafiltration SDI integrated detection multi-channel sample water switching device and a control method thereof. The invention relates to an ultrafiltration SDI integrated detection multipath sample water switching device, which comprises an ultrafiltration device, an inlet of the switching valve is respectively connected with an outlet of the ultrafiltration device through a sampling pipe; an inlet of the micro booster pump is integrally connected with outlets of all the switching valves through water pipes; the booster pump inlet pipe is arranged at the integrated joint of the inlet of the micro booster pump and the outlets of all the switching valves; an inlet of the pollution index tester is connected with an outlet of the micro booster pump; and the drainage tank is connected with an outlet of the pollution index tester. Through multi-path sample water switching and integrated detection, rapid detection of SDI of multiple ultrafiltration devices is realized, the detection cost is remarkably reduced, and the efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of chemical water treatment in power plants, and in particular to an integrated ultrafiltration SDI detection multi-sample water switching device and its control method. Background Technology

[0002] The Silt Density Index (SDI) is a crucial indicator of feed water quality in reverse osmosis (RO) systems, directly impacting the lifespan and operational efficiency of the RO membrane. In large-scale water treatment systems such as power plants and desalination plants, ultrafiltration (UDI) units serve as the core component of RO pretreatment, making real-time monitoring of their permeate SDI values ​​particularly critical. However, traditional monitoring methods have significant drawbacks: typically, a single monitoring point is set at the UDI outlet header (RO inlet header), relying on manual sampling or periodic testing with a fixed SDI meter. While this extensive monitoring approach reflects overall water quality trends, it fails to accurately pinpoint malfunctions in individual UDI units. When an UDI exhibits abnormal SDI due to membrane element breakage, seal failure, or feed water contamination, temporary monitoring devices must be installed on each unit individually, and sampling lines must be manually switched for troubleshooting. This process is not only time-consuming and labor-intensive, with monitoring cycles lasting hours or even days, but also increases the risk of secondary contamination due to frequent instrument disassembly, severely hindering fault diagnosis efficiency.

[0003] Furthermore, traditional solutions require each ultrafiltration unit to be equipped with a separate contamination index analyzer and booster pump, leading to a significant increase in equipment procurement costs. The installation of multiple independent testing devices not only occupies a large amount of space, conflicting with the compact layout of industrial sites, but also increases the complexity of daily maintenance. This problem becomes increasingly prominent as water treatment systems expand in scale. While existing technologies attempt to introduce automation methods such as multi-way valve switching, most solutions are complex in design, have low reliability, and do not fully consider the compatibility of the low-pressure characteristics of ultrafiltration permeate with the testing process. For example, the lack of a stable micro-boosting system causes water pressure fluctuations during testing, affecting the accuracy of SDI measurements; multi-way valve switching devices are prone to malfunctions due to impurities getting stuck or seal failures, making it difficult to meet the long-term stable operation requirements of industrial scenarios.

[0004] Currently, the rapid development of industrial automation and IoT technologies has provided new opportunities for the water treatment testing field. Intelligent, modular, and highly integrated testing equipment has become an urgent need in the industry. However, existing technologies have not yet effectively solved the problem of rapid rotational testing of multiple ultrafiltration devices and real-time data integration, and lack comprehensive consideration of energy consumption optimization, material corrosion resistance, and system redundancy design. Summary of the Invention

[0005] The purpose of this invention is to provide an integrated ultrafiltration SDI detection multi-sample water switching device and its control method to solve the problems mentioned in the background art.

[0006] An integrated ultrafiltration SDI detection multi-sample water switching device includes:

[0007] An ultrafiltration device, wherein the number of the ultrafiltration devices is several;

[0008] The switching valves are of several types, and the inlet of each switching valve is connected to the outlet of the ultrafiltration device via a sampling tube.

[0009] A miniature booster pump, the inlet of which is integrated with the outlet of all the switching valves via a water pipe;

[0010] The booster pump inlet pipe is located at the inlet of the micro booster pump and integrated with the outlet of all the switching valves;

[0011] A pollution index measuring instrument, the inlet of which is connected to the outlet of the micro booster pump;

[0012] A drainage trough, which is connected to the outlet of the pollution index measuring instrument;

[0013] Preferably, the number of ultrafiltration devices is 6, and the number of switching valves is also 6, which is the same as the number of ultrafiltration devices.

[0014] Preferably, the inlet of the ultrafiltration device is connected to a water tank, and the water tank is also directly connected to the inlet pipe of the booster pump.

[0015] A first valve is provided between the water tank and the inlet pipe of the booster pump, and a second water valve is provided at the integrated connection between the inlet of the booster pump and the outlet of the switching valve.

[0016] Preferably, the sampling tube is made of high-pressure resistant material with a pressure resistance of ≥1MPa, and the material is high-pressure nylon or high-pressure resistant PE, and quick-connect connectors are provided at both ends of the sampling tube.

[0017] Preferably, the ultrafiltration device is fixed by a bracket.

[0018] Preferably, the switching valve is an electric ball valve, which is equipped with a 4-20mA signal feedback module to support remote control switching.

[0019] Preferably, the sampling tube is made of high-pressure resistant material with a pressure resistance of ≥1MPa, and the material is high-pressure nylon or high-pressure resistant PE, and quick-connect connectors are provided at both ends of the sampling tube.

[0020] Preferably, the micro booster pump has a built-in pressure sensor, a head of 10-30 mH2O, a flow rate of 2-5 L / min, and is powered by a 24V DC power supply or a lithium battery pack.

[0021] Preferably, the system also includes a control system, which is connected to the switching valve, the micro booster pump, and the pollution index meter for automated control of the detection process and monitoring of operating parameters.

[0022] A method for switching and controlling multiple sample water samples in an integrated ultrafiltration SDI detection system, applied to the aforementioned integrated ultrafiltration SDI detection system with multiple sample water samples, includes the following steps:

[0023] Upon receiving a detection command, the control system drives the corresponding switching valve to open, thus connecting the sample water passage between the target ultrafiltration device and the micro booster pump.

[0024] The micro booster pump is activated to pressurize the sample water and deliver it to the pollution index analyzer.

[0025] The pollution index measuring instrument performs SDI detection, records pressure changes and calculates pollution index data, and sends the data back to the control system.

[0026] After the test is completed, the switching valve is closed, and the drainage tank discharges the test waste liquid;

[0027] Replace the target ultrafiltration device and repeat the above steps to complete the sample water switching test of multiple ultrafiltration devices. During the test, monitor the pressure of the micro booster pump and the operating status of the pollution index meter in real time, and trigger an alarm when abnormalities occur.

[0028] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0029] 1. High-efficiency detection and improved efficiency: The switching valve group enables centralized switching of sample water from multiple ultrafiltration devices, eliminating the need for independent testing of each device. It allows for rapid rotation of sample water from different ultrafiltration devices for SDI testing, significantly shortening the testing cycle and greatly improving the testing efficiency in multi-ultrafiltration device scenarios compared to the traditional method of testing each device individually.

[0030] 2. Reduced costs and superior economic efficiency: Through integrated design, a single detection unit (micro booster pump, pollution index meter, etc.) can be adapted to multiple ultrafiltration devices, reducing the cost of repeated purchase and installation of detection equipment, while also reducing subsequent maintenance costs. It is especially suitable for industrial scenarios with multiple ultrafiltration devices running in parallel, with significant economic advantages.

[0031] 3. Convenient operation and strong adaptability: The design of quick-connect sampling tube and integrated equipment mounting bracket simplifies the connection and layout of the device, making it easy to install, debug and maintain. With the precise pressurization function of the micro booster pump, it can be adapted to detection scenarios with different pressure requirements, making it easy to operate and widely adaptable. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is an integrated ultrafiltration SDI detection multi-sample water switching device;

[0034] Figure 2 A partial enlarged view of the ultrafiltration unit for the integrated ultrafiltration SDI detection multi-sample water switching device;

[0035] Figure 3 A partial enlarged view of the sampling tube and switching valve of the integrated ultrafiltration SDI detection multi-channel water sample switching device;

[0036] Figure 4 A partial enlarged view of the miniature booster pump and booster pump inlet pipe for an integrated ultrafiltration SDI detection multi-sample water switching device;

[0037] Figure 5 A schematic diagram showing the connection of a miniature booster pump, a contamination index meter, and a drainage tank for an integrated ultrafiltration SDI detection multi-channel water sample switching device. The components include: ultrafiltration device 1, support 11, collection tube 2, quick-connect connector 21, switching valve 3, water pipe 4, micro booster pump 5, booster pump inlet pipe 6, pollution index meter 7, drainage trough 8, water tank 9, first valve 91, and second valve 92. Detailed Implementation

[0038] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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 are within the protection scope of the present invention.

[0039] The following is in conjunction with the appendix Figure 1 -Appendix Figure 4 Specific embodiments are described in detail below:

[0040] like Figure 1-4 As shown, an integrated ultrafiltration SDI detection multi-sample water switching device includes:

[0041] Ultrafiltration devices 1, numbered in several units, play a crucial role in filtering raw water within the entire system, serving as the core component for preliminary water purification. Each ultrafiltration device 1 typically houses an ultrafiltration membrane module. These membrane modules possess unique filtration structures and performance characteristics, effectively trapping large molecular impurities, colloidal substances, and bacteria in the water, thus providing relatively pure sample water for subsequent testing. In the preferred embodiment of this system, the specific number of ultrafiltration devices 1 is determined to be six. Figure 2 As shown, each ultrafiltration device 1 is securely fixed by a bracket 11. The bracket 11 plays a crucial role in ensuring that the ultrafiltration device maintains a stable state during long-term operation, avoiding deviations in filtration effect due to external factors such as vibration or displacement, thereby ensuring the stable operation of the entire system and the accuracy of the test results.

[0042] There are several switching valves 3, and in this preferred embodiment, the number of switching valves 3 is equal to the number of ultrafiltration devices, both being six. The inlet of each switching valve 3 is connected to the outlet of the corresponding ultrafiltration device via a sampling tube 2. The sampling tube is made of a high-pressure resistant material, specifically high-pressure nylon or high-pressure resistant PE material. This type of sampling tube has a strong pressure-bearing capacity of ≥1MPa, enabling it to withstand various possible pressure fluctuations during sample water transportation, ensuring that the sample water can be stably and safely transported to subsequent testing stages. Figure 3 As shown, quick-connect connectors 21 are specially designed at both ends of the sampling tube 2, which greatly improves the convenience of installation and maintenance. Operators can quickly and easily connect and disconnect the sampling tube 2 during installation or maintenance, without the need for complex tools and cumbersome procedures, significantly improving work efficiency and saving time and labor costs. The switching valve 3 is an electric ball valve equipped with a 4-20mA signal feedback module. This configuration enables the switching valve 3 to support remote control switching. Operators can precisely control the switching valve 3 from a control room or other location far from the device site via a remote control system, flexibly selecting the ultrafiltration device to be tested according to actual testing needs. Simultaneously, through the signal feedback module, operators can monitor the valve's opening status in real time, ensuring the entire system operates under control.

[0043] The miniature booster pump 5 plays a crucial role in pressurizing the entire device. For example... Figure 4As shown, the booster pump inlet pipe 6 is integrated with the outlets of all switching valves 3 via water pipe 4. The booster pump inlet pipe 6 is connected to the inlet of the micro booster pump 5, and a second valve 92 is located at the integrated connection point at the front end of the booster pump inlet pipe. The micro booster pump 5 has a built-in pressure sensor, enabling it to monitor the inlet pressure in real time. Its head range is set at 10-30 mH2O, providing appropriate pressure for the sample water according to different testing needs and system pressure requirements, ensuring smooth delivery of the sample water to subsequent testing equipment. The flow rate range is 2-5 L / min, ensuring the sample water passes through the testing equipment at a stable and appropriate speed, thus guaranteeing the accuracy and reliability of the test results. To improve the flexibility and adaptability of the device, the micro booster pump 5 is equipped with a 24V DC power supply or a lithium battery pack. This power supply method allows the micro booster pump 5 to operate stably in different working environments, without being limited by factors such as the location of the power socket, making it convenient to use in both fixed industrial sites and temporary testing scenarios.

[0044] The contamination index meter 7 is connected at its inlet to the outlet of the micro booster pump 5. This contamination index meter 7 is an automatic contamination index detector, whose main function is to detect the SDI (Soil Defect Index) of the pressurized water sample. It includes an electronic data display screen and can connect to other terminal devices via wired or wireless means. It can accurately record the pressure changes of the water sample during the filtration process and accurately calculate the contamination index based on this data. The contamination index meter 7 is a key device for water quality assessment in the entire system. The detection data it provides is of significant reference value for judging the operating status of the ultrafiltration device and the water quality. Through accurate measurement of the contamination index, operators can promptly detect whether there are problems such as contamination or blockage in the ultrafiltration device, and thus take corresponding measures to ensure the normal operation of the entire water treatment system.

[0045] Drainage tank 8 is connected to the outlet of the pollution index analyzer 7, and its function is to collect the waste liquid after testing. After the SDI test is completed, the sample water will be discharged from the device through drainage tank 8. The design of drainage tank 8 can effectively prevent the waste liquid from polluting the surrounding environment, and also facilitates the centralized treatment of waste liquid, ensuring that the entire testing process meets environmental protection requirements.

[0046] Water tank 9 is connected to the inlet of ultrafiltration device 1, and water tank 9 is also directly connected to the inlet pipe 6 of booster pump. A first valve 91 is installed between the booster pump inlet pipe and the booster pump inlet pipe, and a second water valve is installed at the integrated connection between the booster pump inlet and the outlet of switching valve 3. The setting of the first and second water valves allows the operator to flexibly control the water supply from water tank 9 to booster pump inlet pipe 6 and the flow of sample water from switching valve 3 to micro booster pump 5 according to actual testing needs and system operation. By reasonably adjusting the opening and closing states of these two valves, precise control of sample water flow and pressure can be achieved, further improving the accuracy and reliability of testing.

[0047] The control system is connected to the switching valve 3, the micro booster pump 5, and the pollution index meter 7 via signal connection. It is used to automatically regulate the detection process and monitor operating parameters, including collecting data of various parameters and sending instructions to various devices.

[0048] A method for switching between multiple ultrafiltration SDI integrated detection samples is disclosed. This control method is applied to the aforementioned ultrafiltration SDI integrated detection multi-sample water switching device, enabling efficient and automated detection of multiple water samples. The specific steps are as follows:

[0049] Receiving Detection Commands and Establishing Connectivity: Upon receiving a detection command, the control system quickly activates the corresponding switching valve 3. This process is crucial for establishing connectivity between the target ultrafiltration device 1 and the micro booster pump 5. Through precise signal transmission and control logic, the control system ensures the accurate opening of the designated switching valve 3, allowing the sample water produced by the target ultrafiltration device 1 to flow smoothly through the sampling pipe 2, water pipe 4, and other pipes to the micro booster pump 5. This automated control method avoids errors and delays that may occur with manual operation, significantly improving the startup efficiency of the detection process.

[0050] Sample Water Pressurization and Delivery: Upon receiving the start signal from the control system, the miniature booster pump 5 immediately begins operation. It pressurizes the sample water delivered from the target ultrafiltration device 1, ensuring sufficient pressure for smooth delivery to the contamination index analyzer 7. The built-in pressure sensor in the miniature booster pump 5 monitors the pump's internal pressure in real time and automatically adjusts its operating status according to preset parameters, ensuring the sample water enters the contamination index analyzer 7 with stable pressure and flow rate. This precise pressure and flow control is crucial for ensuring the accuracy of the contamination index analyzer 7.

[0051] SDI Detection and Data Feedback: Upon receiving the pressurized sample water, the SDI detection instrument 7 immediately executes the SDI detection program. During the detection process, it accurately records the pressure changes of the sample water during filtration and calculates the SDI based on a specific algorithm and formula. After completing the detection, the SDI instrument 7 sends the recorded pressure changes and calculated SDI data back to the control system. The control system receives this data and performs further analysis and processing, such as comparing it with preset standard values ​​to determine whether the water quality is up to standard.

[0052] Testing Completion and Waste Discharge: After a test is completed, the control system will issue a command to close the corresponding switching valve 3, preventing the sample water from continuing to flow into the pollution index analyzer. At this time, the waste liquid from the test will be discharged from the device through the drainage tank 8.

[0053] Cyclic Testing and Anomaly Monitoring: After completing the sample water testing of one target ultrafiltration device 1, the operator can replace the target ultrafiltration device 1 as needed. The control system will cyclically execute the above steps according to a preset program to complete the sample water switching testing of multiple ultrafiltration devices 1. Throughout the testing process, the control system will monitor the pressure of the micro booster pump and the operating status of the contamination index meter in real time. Once an abnormal pressure or a malfunction of the meter is detected, the control system will immediately trigger an alarm mechanism to promptly notify the operator for handling, ensuring the smooth progress of the testing process and the accuracy of the test results.

[0054] To further illustrate the present invention, the following describes in detail, with reference to embodiments, a multi-channel sample water switching device and its control method for integrated ultrafiltration SDI detection provided by the present invention, but it should not be construed as a limitation on the scope of protection of the present invention.

[0055] Example 1: Testing a pollution index measuring instrument

[0056] Preliminary preparations

[0057] Check the connections of each device to ensure that the sampling tube and water pipe are securely connected. Open the first valve and close the second valve. Connect the 24V DC power supply to the micro booster pump, turn on the control system, and initialize the entire device, setting the head of the micro booster pump to 20mH2O and the flow rate to 3L / min.

[0058] First test

[0059] The control system receives a command and closes all switching valves. The control system then sends a signal to close all switching valves. Raw water flows from water tank 9 through a water pipe, passing through the first valve and the booster pump inlet pipe, into the micro booster pump. The micro booster pump starts, pressurizing the sample water to a preset pressure before delivering it to the contamination index analyzer. The contamination index analyzer begins SDI testing. During the test, it accurately records the pressure change of the sample water as it passes through the 0.45μm standard test membrane and calculates the contamination index according to a preset algorithm. The entire testing process lasts 15 minutes. After testing, the waste liquid is discharged into the waste liquid recovery system for treatment through a drainage trough.

[0060] Subsequent detection loop

[0061] The pollution index meter readings exceeded the standard, triggering an alarm in the control system.

[0062] Example 2

[0063] Preliminary preparations

[0064] Check the connections of each device to ensure that the sampling tube and water pipe are securely connected. Close the first valve and open the second valve. Connect the 24V DC power supply to the micro booster pump, turn on the control system, and initialize the entire device, setting the head of the micro booster pump to 20mH2O and the flow rate to 3L / min.

[0065] First test

[0066] The control system receives a command to test the first ultrafiltration unit. The control system sends a signal to open the electric ball valve connected to the first ultrafiltration unit, establishing a sample water passage between the ultrafiltration unit and the micro booster pump. Raw water flows into the first ultrafiltration unit from water tank 9. The filtered sample water enters the micro booster pump through the sampling tube, water pipe, and booster pump inlet pipe. The micro booster pump starts, pressurizing the sample water to a preset pressure before delivering it to the contamination index analyzer. The contamination index analyzer begins SDI testing, accurately recording the pressure change as the sample water passes through a 0.45μm standard test membrane and calculating the contamination index according to a preset algorithm. The entire testing process lasts 15 minutes. After testing, the control system sends a signal to close the electric ball valve, and the waste liquid is discharged into the waste liquid recovery system for treatment through a drainage trough.

[0067] Subsequent detection loop

[0068] The remaining five ultrafiltration devices were tested sequentially according to the preset testing sequence. No abnormal data was detected by the contamination index analyzer for the first five ultrafiltration devices, and the control system did not alarm. However, an abnormal data was detected by the contamination index analyzer for the sixth ultrafiltration device, triggering an alarm in the control system.

[0069] Experimental results

[0070] After sequential testing of six ultrafiltration units, the fouling index of the permeate water from each unit was obtained. The fouling indices of units 1, 2, 3, 4, and 5 were all between 3 and 4, indicating that these units were operating normally and the permeate water quality met the requirements for boiler feedwater pretreatment. However, the fouling index of unit 6 reached 6, exceeding the normal range. This result suggested that this unit might have membrane fouling or other malfunctions. Based on the test results, the operators performed targeted inspections and maintenance on unit 6, such as backwashing the ultrafiltration membrane module and replacing some damaged membrane fibers. After maintenance, unit 6 was tested again, and its fouling index dropped to 3.5, returning to normal levels. This testing of the unit promptly identified and resolved potential problems with the ultrafiltration units, ensuring the stability of boiler feedwater quality and improving the operational safety and reliability of the power plant.

[0071] The present invention has been further described above with reference to specific embodiments. However, it should be understood that the specific description herein should not be construed as limiting the nature and scope of the present invention. Various modifications made to the above embodiments by those skilled in the art after reading this specification are all within the scope of protection of the present invention.

Claims

1. An ultrafiltration SDI integrated detection multi-path water switching device, characterized in that, It comprises: a plurality of ultrafiltration devices; a plurality of switching valves, the inlets of which are respectively connected to the outlets of the ultrafiltration devices through sampling pipes; a micro booster pump, the inlet of which is integrally connected to the outlets of all the switching valves through a water pipe; a booster pump inlet pipe provided at the integrated connection between the inlet of the micro booster pump and the outlets of all the switching valves; a pollution index tester, the inlet of which is connected to the outlet of the micro booster pump; a drain tank connected to the outlet of the pollution index tester.

2. The ultrafiltration SDI integrated detection multi-path water switching device according to claim 1, wherein: the number of the ultrafiltration devices is 6, and the number of the switching valves is equal to the number of the ultrafiltration devices, also 6.

3. The ultrafiltration SDI integrated detection multi-path water switching device according to claim 1, wherein: the inlets of the ultrafiltration devices are connected to a water tank, and the water tank is directly connected to the booster pump inlet pipe; a first valve is arranged between the water tank and the booster pump inlet pipe, and a second water valve is arranged at the integrated connection between the inlet of the booster pump and the outlets of the switching valves.

4. The ultrafiltration SDI integrated detection multi-path water switching device according to claim 1, wherein: the sampling pipes are high-pressure resistant material pipes with a pressure bearing capacity of ≥1MPa, and the material is high-pressure nylon or high-pressure resistant PE, and quick plug joints are arranged at both ends of the sampling pipes.

5. The ultrafiltration SDI integrated detection multi-path water switching device according to claim 1, wherein: the ultrafiltration devices are fixed by supports.

6. The ultrafiltration SDI integrated detection multi-path water switching device according to claim 1, wherein: the switching valves are electric ball valves, and the electric ball valves are configured with 4-20mA signal feedback modules to support remote control switching.

7. The device according to claim 1, wherein: the sampling pipes are high-pressure resistant material pipes with a pressure bearing capacity of ≥1MPa, and the material is high-pressure nylon or high-pressure resistant PE, and quick plug joints are arranged at both ends of the sampling pipes.

8. The ultrafiltration SDI integrated detection multi-path water switching device according to claim 1, wherein: the micro booster pump is provided with a built-in pressure sensor, a lift of 10-30mH2O, a flow rate of 2-5L / min, and is configured with a 24V DC power supply or a lithium battery pack for power supply.

9. The ultrafiltration SDI integrated detection multi-path water switching device according to claim 1, further comprising a control system connected in signal with the switching valves, the micro booster pump and the pollution index tester, for automatic control of the detection process and monitoring of the operating parameters. The ultrafiltration SDI integrated detection multi-path water switching device according to claim 9 comprises the following steps:

10. A method for switching control of multiple sample water in an ultrafiltration SDI integrated detection, characterized in that, receiving a detection instruction, the control system drives the corresponding switching valve to open, and the sample water path between the target ultrafiltration device and the micro booster pump is turned on; the micro booster pump is started, and the sample water is boosted and transported to the pollution index tester. ​ The contamination index detector performs SDI detection, records pressure changes and calculates data of contamination index, and sends the data back to the control system; After detection is completed, the switching valve is closed, and the drain tank discharges the detection waste liquid; The target ultrafiltration device is replaced, the above steps are cycled to complete the sample water switching detection of multiple ultrafiltration devices, and the pressure of the micro booster pump and the running state of the contamination index detector are monitored in real time during the detection process, and an alarm is triggered when an abnormality occurs.

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