A corrosion resistance testing device for the rotor core of an electronic pump

Abstract

This invention discloses a corrosion resistance testing device for the rotor core of an electronic pump, belonging to the technical field of corrosion resistance testing equipment, including a movable base plate. The invention utilizes a sealing mechanism in conjunction with the chassis and cover to provide a sealed environment for the testing process, improving the stability of the testing environment and preventing external interference with the test results. Through a closed-loop logic of image grayscale analysis, corrosion area localization, and quantitative pressure adjustment via an analysis module, it identifies the deviation between the spray coverage area and the core outline in real time, precisely controlling the pressure of the pressurization pipe to ensure that the spray coverage width matches the core size. This avoids insufficient spray volume at the core edge or liquid accumulation in the central area due to improper pressure, thus preventing misjudgments of localized corrosion resistance and making the test data more consistent with the core's true corrosion resistance. Precise pressure adjustment avoids excessive spraying, reducing reagent waste. Testing multiple cores in the same environment ensures the consistency of batch data.

Description

Technical Field

[0001] This invention relates to the field of corrosion resistance testing equipment, and in particular to a corrosion resistance testing device for the rotor core of an electronic pump. Background Technology

[0002] As a key piece of equipment in the field of fluid transportation, electric pumps are widely used in industries such as automobiles, chemicals, and medical devices. Their operating efficiency and service life directly depend on the performance of their core components. The rotor core, as the core component of the electric pump, plays an important role in transmitting power and maintaining stable rotor operation. Since electric pumps often operate in environments containing corrosive media such as acids, alkalis, and water vapor, the rotor core is in long-term contact with these media and is prone to corrosion. This can lead to rust and peeling on the core surface, and even cause problems such as reduced structural strength and operational imbalance. In severe cases, it can cause the electric pump to shut down and damage the equipment, resulting in huge economic losses and safety hazards. Therefore, accurate testing of the corrosion resistance of the electric pump rotor core is a key link in ensuring the long-term stable operation of the electric pump.

[0003] While some testing equipment can simulate the environment to a certain extent, they suffer from poor sealing performance. During the testing process, corrosive gases or solutions are prone to leakage, which not only pollutes the testing environment and endangers the health of operators, but also affects the reliability of the test data due to changes in the concentration of the medium. In addition, the existing equipment has a relatively limited testing scope, and most of them can only test for a single corrosive medium or fixed environmental conditions. However, in actual applications, the rotor core often faces the synergistic effect of multiple corrosive factors, making it difficult for the test results to fully reflect the corrosion resistance of the core and meet the needs of high-precision and multi-scenario testing.

[0004] Therefore, the above-mentioned problems need to be addressed and improved. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a corrosion resistance testing device for the rotor core of an electronic pump.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a corrosion resistance testing device for an electronic pump rotor core, comprising a movable base plate, a housing and a central control console mounted on the top surface of the movable base plate, the central control console being located on one side of the housing, a cover hinged to the rear end of the housing, a sealing mechanism being installed on the cover and the housing, and a testing mechanism and an adjustment mechanism being installed inside the housing;

[0007] The central control console is equipped with intelligent control components, which include a data acquisition module, an analysis module, and an execution module.

[0008] The data acquisition module collects image data of the atomized spraying area, data on the length and width of the rotor core, and data on the pressurization amplitude of the pressurized spraying, and then transmits the collected data to the analysis module.

[0009] The analysis module receives data from the acquisition module, preprocesses the data, performs grayscale processing and segmentation on the image, determines the location of dense corrosion, divides the region, and compares the divided region with the outline shape of the rotor core; if the divided region is small, a boost signal is generated and transmitted to the execution module; the change value caused by a single boost is obtained based on the single boost amplitude, and the boost amplitude data is analyzed.

[0010] The execution module receives signals from the analysis module and performs corresponding operations.

[0011] Preferably, the analysis module performs the following steps for analyzing image data:

[0012] S1: Perform grayscale processing on the acquired image data and divide it according to the pixel block size. Number the segmented image blocks according to the row and column number. Collect grayscale data for the corresponding numbered image blocks and mark the image blocks with grayscale data within the preset grayscale range as erosion hole image blocks.

[0013] S2: Calculate the distance between adjacent erosion hole image patches. , will satisfy Image blocks are color-coded, and the areas covered by the color-coded image blocks are marked. A preset distance threshold is set; a rectangular shape corresponding to the rotor core is drawn on the grayscale image, and the drawn rectangle is compared with the marked coverage area. If the length or width of the rectangle is greater than the marked coverage area, a boost signal is generated and transmitted to the execution module, and the length difference is calculated. and width difference .

[0014] Preferably, the analysis module performs the following steps to analyze the adjustment range:

[0015] K1: Single boost amplitude is The pressure was increased twice, and the rectangular shape was compared with the area covered after the pressure increase, and the length difference was calculated. , and width difference , ; Calculate the change in length , and width change , ;

[0016] K2: The average value of the change is used as the change value caused by a single boost increase, i.e., the change value. Change value The adjustment ranges for length and width during a single boost are determined to be... and Adjustment range .

[0017] Preferably, the movable base plate is equipped with casters at all four ends of its bottom surface, the front face of the chassis has two mounting slots, one end of each mounting slot is hinged to a glass door, and an exhaust pipe is connected to one side of the chassis. Transparent glass is installed on both sides of the front face of the cover.

[0018] Preferably, the sealing mechanism includes mounting blocks installed on both sides of the chassis and sealing strips installed on the periphery of the bottom surface of the cover. An electric actuator is hinged to the top surface of the mounting block, and the output end of the electric actuator is respectively hinged to both sides of the top of the cover.

[0019] Preferably, the top surface of the chassis is provided with a sealing groove that matches the sealing strip, and the sealing strip is made of soft rubber.

[0020] Preferably, the detection mechanism includes a solution filling port installed through the lower rear end of the chassis and a bubbling tower located on one side of the solution filling port. A mixing valve is installed inside the chassis. The other ends of the solution filling port and the bubbling tower are connected to a first acid-proof pipe. The other ends of the two first acid-proof pipes are located on both sides of the mixing valve. A diversion valve is connected to the front end of the mixing valve. Second acid-proof pipes are connected to both sides of the diversion valve. A pressure pipe is installed longitudinally at the upper end of each of the two second acid-proof pipes. An atomizer is installed at the top of the pressure pipe.

[0021] Preferably, a heating plate is installed at the bottom of the chassis, and a humidity sensor and a temperature sensor are respectively installed on the inner wall of one side of the cover. The temperature sensor is located at the rear end of the humidity sensor. Multiple storage rods and storage boards are placed vertically inside the chassis, and multiple first and second sliding grooves are provided on the inner wall of the chassis to facilitate the removal of the storage rods and storage boards.

[0022] Preferably, two collection cups are installed inside the chassis, and each collection cup is connected to a drainage tube at its lower end. The other end of the drainage tube is connected to an acid detector, and the two acid detectors are respectively located in two mounting slots.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] By cooperating with the sealing mechanism, chassis, and cover, a sealed environment is provided for the testing process, improving the stability of the testing environment and preventing external interference with the test results. Furthermore, the combination of the heating plate, temperature sensor, and humidity sensor facilitates the adjustment of the temperature inside the chassis and ensures stable testing conditions, thereby enabling the simulation of specific corrosive environments. The combination of the placement rod and V-shaped placement plate allows for flexible adjustment of the placement method according to the size of the iron core. Ultimately, this solves the problems of poor sealing performance, limited testing conditions, and low adaptability of iron core placement in existing devices.

[0025] The analysis module performs a closed-loop logic of image grayscale analysis, corrosion area location, and quantitative pressure adjustment. It identifies the deviation between the spray coverage area and the iron core outline in real time, accurately controls the pressure of the pressurization tube, ensures that the spray coverage width matches the iron core size, avoids "insufficient liquid spray at the edge of the iron core" or "liquid accumulation in the central area" caused by improper pressure, and prevents "misjudgment of local corrosion resistance". This makes the test data more consistent with the true corrosion resistance of the iron core.

[0026] A servo motor drives the placement plate to rotate around the axis, ensuring that multiple iron cores pass through the spray area sequentially. At the same time, the clamping plate meshes with the internal gear ring through gears, driving the iron core to rotate during its revolution, so that the iron core can contact the atomized liquid 360° without dead angles. Precise pressure adjustment avoids excessive spraying and reduces reagent waste. Testing multiple iron cores in the same environment ensures the consistency of batch data and improves the comparability and reliability of batch data. Attached Figure Description

[0027] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0028] Figure 1 This is a schematic diagram of the overall appearance of the device proposed in this invention;

[0029] Figure 2 This is a schematic diagram of the internal structure of the device proposed in this invention;

[0030] Figure 3 This is a schematic diagram of the detection mechanism structure proposed in this invention;

[0031] Figure 4 This is a schematic diagram of the overall cross-sectional structure of the device proposed in this invention;

[0032] Figure 5 This is a schematic diagram of the adjustment mechanism proposed in this invention;

[0033] Figure 6 This is a flowchart of the system proposed in this invention.

[0034] The following are the components listed in the diagram: 1. Movable base plate; 2. Chassis; 3. Central control panel; 4. Cover; 5. Casters; 6. Glass door; 7. Transparent glass; 8. Exhaust pipe; 9. Mounting block; 10. Electric actuator; 11. Solution filling port; 12. Bubble tower; 13. Mixing valve; 14. Pressurization pipe; 15. Atomizer; 16. Heating plate; 17. Acidity detector; 18. Drainage pipe; 19. Collection cup; 20. Storage rod; 21. Storage plate; 22. Humidity sensor; 23. Temperature sensor; 24. Clamping plate; 25. Limiting groove; 26. Baffle. Detailed Implementation

[0035] 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.

[0036] Example 1: See Figures 1 to 4 This invention discloses a corrosion resistance testing device for an electronic pump rotor core, comprising a movable base plate 1 for easy installation of a housing 2 and a cover 4; a housing 2 and a central control panel 3 are mounted on the top surface of the movable base plate 1, facilitating the installation of a testing mechanism via the housing 2; the central control panel 3 facilitates the operation of the device; the central control panel 3 is located on one side of the housing 2, and a cover 4 is hinged to the rear end of the housing 2 for sealing the housing 2; a sealing mechanism is installed on the cover 4 and the housing 2, and the testing mechanism is installed inside the housing 2; casters 5 are installed at all four ends of the bottom surface of the movable base plate 1 for easy movement of the device; two mounting slots are provided on the front surface of the housing 2, and glass doors 6 are hinged to one end of each slot for easy replacement of an acid detector 17; an exhaust pipe 8 is connected to one side of the housing 2 for easy removal of excess air from the housing via a valve; transparent glass 7 is installed on both sides of the front surface of the cover 4 for easy viewing. The internal corrosion is observed visually. The sealing mechanism includes mounting blocks 9 installed on both sides of the chassis 2 and sealing strips installed on the bottom periphery of the cover 4. The mounting blocks 9 facilitate the installation of electric actuators 10. The top surface of the mounting blocks 9 is hinged to the electric actuators 10, which facilitates the opening and closing of the cover 4. The output ends of the electric actuators 10 are respectively hinged to the top two sides of the cover 4. The top surface of the chassis 2 is provided with a sealing groove that matches the sealing strip. The sealing strip is made of soft rubber. The detection mechanism includes a solution filling port 11 that runs through the lower rear end face of the chassis 2 and a bubble column 12 located on one side of the solution filling port 11. The solution filling port 11 facilitates the addition of the mixed solution into the device. A mixing valve 13 is installed inside the chassis 2. The bubble column 12 facilitates the addition of gas into the chassis 2. The mixing valve 13 mixes the gas and the solution. The other ends of the solution filling port 11 and the bubble column 12 are connected to first acid-proof pipes, and the other ends of the two first acid-proof pipes are located on both sides of the mixing valve 13.

[0037] In this invention, a diversion valve is connected to the front end of the mixing valve 13, and second acid-resistant pipes are connected to both sides of the diversion valve. A pressure-increasing pipe 14 is longitudinally installed at the upper end of each of the two second acid-resistant pipes, which facilitates increasing the solution pressure. An atomizer 15 is installed at the top of the pressure-increasing pipe 14, which facilitates spraying the solution onto the detection piece through atomization. A heating plate 16 is installed at the bottom of the chassis 2, which, along with the humidity sensor 22 and temperature sensor 23, facilitates simulating the real-world environment. A humidity sensor 22 and a temperature sensor 23 are respectively installed on the inner wall of one side of the cover 4. The temperature sensor 23 is located behind the humidity sensor 22, and the interior of the chassis 2 is longitudinally... Multiple placement rods 20 and placement plates 21 are placed, allowing for free placement according to the shape and size of the test specimens. The inner wall of the casing 2 has multiple first and second sliding grooves for easy disassembly of the placement rods 20 and placement plates 21. Two collection cups 19 are installed inside the casing 2 to collect a portion of the solution sprayed from the atomizer 15. Each collection cup 19 is connected to a drainage tube 18 at its lower end, with the other end of the drainage tube 18 connected to an acid detector 17. The acid detector 17 facilitates the detection of acid concentration in the gas, ensuring the accuracy of the device's detection. The two acid detectors 17 are located in two separate mounting slots.

[0038] In this invention, the acidity detector 17 is model HD-SpH, the humidity sensor 22 is model M22-I1, and the temperature sensor 23 is model PT1000.

[0039] Working principle: When using this invention, first, power on the device and turn on all electrical appliances. By operating the central control panel 3, control the extension of the electric push rod 10, which in turn drives the cover 4 to open. Install the placement rod 20 and the V-shaped placement plate 21 through the first and second sliding grooves. Place the test piece on the placement rod 20 and the V-shaped placement plate 21. Then, close the cover 4. During this process, because the sealing strip material is malleable, there is no need to worry about the arc-shaped movement trajectory affecting the sealing strip entering the sealing groove. At the same time, the solution filling port 11 adds the mixed acidic solution to the first acid-resistant part. Inside the pipe, the bubbling tower 12 simultaneously inputs the gas containing the reagent into the first acid-proof pipe, mixes it through the mixing valve 13, and divides it into two pipelines through the diversion valve. Then, it is pressurized through the pressurizing pipe 14 and sprayed onto the test piece through the atomizer 15. At the same time, the heating plate 16 heats it. With the help of the humidity sensor 22 and the temperature sensor 23, the real environment is simulated. The corrosion of the test piece can be observed by the naked eye through the transparent glass 7. At the same time, the collection cup 19 collects the acid solution inside the chassis 2 and detects its acidity through the acidity detector 17 to ensure the accuracy of the detection.

[0040] Example 2: See Figures 5 to 6 The central control console 3 is equipped with intelligent control components, which include a data acquisition module, an analysis module, and an execution module.

[0041] The data acquisition module collects image data of the atomized spraying area, data on the length and width of the rotor core, and data on the pressurization amplitude of the pressurized spraying, and then transmits the collected data to the analysis module.

[0042] The analysis module receives data from the acquisition module, preprocesses the data, performs grayscale processing and segmentation on the image, determines the location of dense corrosion, divides the region, and compares the divided region with the outline shape of the rotor core; if the divided region is small, a boost signal is generated and transmitted to the execution module; the change value caused by a single boost is obtained based on the single boost amplitude, and the boost amplitude data is analyzed.

[0043] The collected data was sorted according to the collection time, and corresponding items collected at the same time were sorted. averaging the data and standard deviation The calculation, and the mean obtained from the calculation. and standard deviation Collect data fluctuation range for corresponding items The system is configured to compare the collected data for a given item with its fluctuation range, mark data outside the fluctuation range as outliers, and record the number of outliers. ,like If the data is found to be abnormal, the data will be re-tested. This is a preset proportional coefficient; if If outliers are removed, the mean of the remaining corresponding test data after outlier removal is calculated. The calculation, and the mean obtained from the calculation. As the corresponding data detected at the corresponding time;

[0044] The value needs to be dynamically adjusted based on the "data type of data collected", "equipment accuracy", and "detection scenario requirements"; there is no universal fixed value. The higher the equipment accuracy, the smaller the fluctuation of normal data and the lower the proportion of outliers. More stringent requirements can be set; for example, for a 2-megapixel industrial camera (image grayscale value error ±2%) and a PT1000 temperature sensor (error ±0.1℃), the percentage of normal outliers should be <3%. Set it to 0.03;

[0045] Re-examine the corresponding data; if the comparison result is still negative... If the problem is detected, it is determined that the acquisition device is malfunctioning, an equipment warning signal is generated, and the equipment warning signal is transmitted to the execution module.

[0046] After receiving the device warning signal, the execution module controls the buzzer module of the intelligent control component to emit a buzzer warning and displays "Data Acquisition Device Abnormal" on the central control console 3, so that staff can perform timely maintenance operations on the device.

[0047] The adjustment mechanism includes a shelf 21. Inside the housing 2, a rotating shaft is installed below the shelf 21. An external gear ring is provided on the outer wall of the rotating shaft. Inside the housing 2, a servo motor is installed at the position corresponding to the external gear ring. The gear installed on the output end of the servo motor engages with the external gear ring, causing the servo motor to drive the rotating shaft to rotate. Multiple shelves 21 are evenly installed on the outer side of the rotating shaft through a connecting bracket. Adjacent shelves 21 are in close contact with each other to prevent the liquid sprayed by the atomizer 15 from corroding the structure below. Limiting grooves 2 are provided on the upper and lower positions of both sides of the inner side wall of the shelf 21. 5. A clamping plate 24 is slidably connected to the inner side of the shelf 21 at the position corresponding to the limiting groove 25. A sliding plate is integrally formed on both sides of the clamping plate 24 at the position corresponding to the limiting groove 25. A rectangular groove is opened in the middle of the upper and lower surfaces of the sliding plate. A rectangular strip of the same size is integrally formed on the upper and lower inner walls of the limiting groove 25 at the position corresponding to the rectangular groove. When the clamping plate 24 slides in the position of the limiting groove 25, it remains perpendicular to the shelf 21 at all times due to the mutual restriction between the rectangular strip and the rectangular groove. A baffle 26 is slidably connected to the upper part of the shelf 21 inside the chassis 2 through a sliding groove.

[0048] The clamping plate 24 is 7-shaped, consisting of an upper blocking structure and a lower rotating structure. The blocking structure prevents the clamped object from falling off during rotation. The rotating structure extends to the outside of the shelf 21 via a rotating shaft, and a gear is also installed at one end of the rotating shaft extending to the outside of the shelf 21. An internal gear ring is provided on the inner wall of the housing 2 at the position corresponding to the shelf 21. The internal gear ring and the gear on the rotating shaft are interlocked (ensuring that the bottom surface faces upward when the object rotates to the top position again). When the servo motor drives the shelf 21 to rotate, the rotating structure of the clamping plate 24 drives the clamped object to rotate, so that while the shelf 21 rotates around the rotating shaft, the clamped object also rotates inside the shelf 21.

[0049] A spraying test was conducted. Identical test plates were placed on both sides of the atomizer at a distance of 15. Atomization spraying was performed at the initial pressure for a set time. After spraying, images of the test plates were acquired, and the acquired image data was processed for grayscale. The images were then segmented according to pixel block size, and the resulting image blocks were numbered according to their row and column numbers. Grayscale data was acquired for the corresponding numbered image blocks, and image blocks with grayscale values ​​within a preset grayscale range were marked as corrosion hole image blocks. The distance between adjacent corrosion hole image blocks was calculated. , will satisfy Image blocks are color-coded, and the areas covered by the color-coded image blocks are marked. A preset distance threshold is set; a rectangular shape corresponding to the rotor core is drawn on the grayscale image, and the drawn rectangle is compared with the marked coverage area. If the length or width of the rectangle is greater than the marked coverage area, a boost signal is generated and transmitted to the execution module, and the length difference is calculated. and width difference ;

[0050] The preset grayscale value range is as follows: the surface of an uncoated bare metal core (such as silicon steel sheet) has a metallic luster, and the grayscale value of the normal area is usually 80-120 (medium brightness); if the core surface has an anti-rust coating (such as epoxy coating), the grayscale value of the normal area will increase to 100-150 (the coating reflects more light); while the grayscale value of the corroded area will deviate significantly from the normal range due to the presence of "holes and rust"; if a high-resolution industrial camera (such as 2 megapixels) is used and the lighting inside the chassis is uniform (diffuse reflection through transparent glass 7), the grayscale value fluctuation in the normal area is small (±5), and the range can be set narrower; if the lighting is uneven or the camera resolution is low, the range needs to be widened to avoid missed detections.

[0051] Select a standard part with the same material and surface condition as the iron core to be tested, and artificially create different degrees of corrosion. Place the standard part in chassis 2, acquire images according to the normal testing procedure, and perform grayscale processing. Use image analysis software to measure the grayscale values ​​of the "normal area" and the "corroded area", and take the range from "minimum grayscale value of the corroded area - 5" to "maximum grayscale value of the corroded area + 5" as the preset range (e.g., grayscale of the corroded area of ​​the standard part is 25-55, preset range is 20-60). Test 1-2 sets of iron cores to be tested using this range. If there is a missed judgment (normal area is marked) or a misjudgment (corroded area is not marked), fine-tune the range ±5-10 until the accuracy is ≥95%.

[0052] Select 3-5 iron cores with different corrosion distributions to be tested; observe and manually mark the actual corrosion range on the iron core surface through transparent glass 7, and measure the maximum distance between adjacent corrosion points; take "the maximum distance between manually marked adjacent corrosion points + 1-2 mm" as the initial value. Use this Let the analysis module automatically divide the coverage area, and compare the "automatic division results" with the "manually marked results". If the overlap is ≥90%, then... If the overlap is low, fine-tune it by ±1-2mm until it meets the standard.

[0053] The single boost amplitude is The pressure was increased twice, and the rectangular shape was compared with the area covered after the pressure increase, and the length difference was calculated. , and width difference , ; Calculate the change in length , and width change , The mean of the changes is taken as the change caused by a single increase in pressure, i.e., the change value. Change value The adjustment ranges for length and width during a single boost are determined to be... and Adjustment range ;

[0054] Initial pressure of the device Typically, settings are configured based on the performance of atomizer 15; chassis 2 is set to constant temperature and humidity (e.g., 25℃, 85%RH), and a standard test board (size matching the core to be tested) is installed; from Start by increasing each time (e.g., 0.01 MPa), record the spray coverage width after each pressurization, and calculate the ratio of "pressure change - coverage width change" (i.e., sensitivity); if the sensitivity is high (e.g., 0.01 MPa → +0.5 mm), take... 0.02MPa (2 times the sensitivity step size); if the sensitivity is low (0.05MPa → +0.5mm), take... 0.03MPa (slightly smaller than the sensitivity step size to avoid under-adjustment); perform two pressurization cycles according to step K1 (e.g. 0.03MPa, from 0.2→0.23→0.26MPa), calculate the change in length / width ( , If the change is stable (e.g.) 0.3mm (0.28mm), then Appropriate; if the change fluctuates greatly (e.g. 0.5mm, 0.1mm), fine adjustment 0.01MPa;

[0055] After receiving the boost signal, the execution module obtains the adjustment range analyzed by the analysis module and adjusts the pressure according to the magnitude of the adjustment range.

[0056] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A corrosion resistance testing device for an electronic pump rotor core, comprising a movable base plate (1), characterized in that: The top surface of the movable base plate (1) is equipped with a chassis (2) and a central control console (3). The central control console (3) is located on one side of the chassis (2). The rear end of the chassis (2) is hinged with a cover (4). The cover (4) and the chassis (2) are equipped with sealing mechanisms. The chassis (2) is equipped with a detection mechanism and an adjustment mechanism. The detection mechanism includes a solution filling port (11) installed through the lower rear end face of the chassis (2) and a bubble column (12) located on one side of the solution filling port (11). A mixing valve (13) is installed inside the chassis (2). The other ends of the solution filling port (11) and the bubble column (12) are connected to a first acid-proof pipe. The other ends of the two first acid-proof pipes are located on both sides of the mixing valve (13). A diversion valve is connected to the front end of the mixing valve (13). A second acid-proof pipe is connected to both sides of the diversion valve. A pressure pipe (14) is installed longitudinally at the upper end of the two second acid-proof pipes. An atomizer (15) is installed at the top of the pressure pipe (14). The adjustment mechanism includes a shelf (21). Inside the chassis (2), a rotating shaft is installed below the shelf (21). Multiple shelves (21) are evenly installed on the outside of the rotating shaft via a connecting frame. Limiting grooves (25) are provided on both sides of the inner wall of the shelf (21) at the upper and lower positions. A clamping plate (24) is slidably connected to the inner side of the shelf (21) at the position corresponding to the limiting groove (25). Inside the chassis (2), a baffle (26) is slidably connected to the upper part of the shelf (21) via a sliding groove. The central control console (3) is equipped with intelligent control components, which include a data acquisition module, an analysis module, and an execution module; The data acquisition module collects image data of the atomized spraying area, data on the length and width of the rotor core, and data on the pressurization amplitude of the pressurized spraying, and then transmits the collected data to the analysis module. The analysis module receives data from the acquisition module, preprocesses the data, performs grayscale processing and segmentation on the image, determines the location of dense corrosion, divides the region, and compares the divided region with the outline shape of the rotor core; if the divided region is small, a boost signal is generated and transmitted to the execution module; the change value caused by a single boost is obtained based on the single boost amplitude, and the boost amplitude data is analyzed. The analysis module performs the following steps to analyze image data: S1: Perform grayscale processing on the acquired image data and divide it according to the pixel block size. Number the segmented image blocks according to the row and column number. Collect grayscale data for the corresponding numbered image blocks and mark the image blocks with grayscale data within the preset grayscale range as erosion hole image blocks. S2: Calculate the distance between adjacent erosion hole image patches. , will satisfy Image blocks are color-coded, and the areas covered by the color-coded image blocks are marked. A preset distance threshold is set; a rectangular shape corresponding to the rotor core is drawn on the grayscale image, and the drawn rectangle is compared with the marked coverage area. If the length or width of the rectangle is greater than the marked coverage area, a boost signal is generated and transmitted to the execution module, and the length difference is calculated. and width difference ; The analysis module performs the following steps to analyze the adjustment range: K1: Single boost amplitude is The pressure was increased twice, and the rectangular shape was compared with the area covered after the pressure increase, and the length difference was calculated. , and width difference , ; Calculate the change in length , and width change , ; K2: The average value of the change is used as the change value caused by a single boost increase, i.e., the change value. Change value The adjustment ranges for length and width during a single boost are determined to be... and Adjustment range ; The execution module receives signals from the analysis module and performs corresponding operations.

2. The corrosion resistance testing device for the rotor core of an electronic pump according to claim 1, characterized in that: The movable base plate (1) is equipped with casters (5) at all four ends of the bottom surface. The front end of the chassis (2) has two mounting slots. One end of each mounting slot is hinged with a glass door (6). An exhaust pipe (8) is connected to one side of the chassis (2). Transparent glass (7) is installed on both sides of the front end of the cover (4).

3. The corrosion resistance testing device for the rotor core of an electronic pump according to claim 1, characterized in that: The sealing mechanism includes mounting blocks (9) installed on both sides of the chassis (2) and sealing strips installed on the periphery of the bottom surface of the cover (4). The top surface of the mounting block (9) is hinged with an electric push rod (10), and the output ends of the two electric push rods (10) are respectively hinged to the top two sides of the cover (4).

4. The corrosion resistance testing device for the rotor core of an electronic pump according to claim 1, characterized in that: The top surface of the chassis (2) is provided with a sealing groove that matches the sealing strip, and the sealing strip is made of soft rubber.

5. The corrosion resistance testing device for the rotor core of an electronic pump according to claim 1, characterized in that: A heating plate (16) is installed on the bottom of the chassis (2). A humidity sensor (22) and a temperature sensor (23) are installed on the inner wall of one side of the cover (4). The temperature sensor (23) is located at the rear end of the humidity sensor (22). Multiple storage rods (20) and storage boards (21) are placed vertically inside the chassis (2). Multiple first and second sliding grooves are provided on the inner wall of the chassis (2) to facilitate the disassembly of the storage rods (20) and storage boards (21).

6. The corrosion resistance testing device for an electronic pump rotor core according to claim 1, characterized in that: The chassis (2) is equipped with two collection cups (19), each collection cup (19) is connected to a drainage tube (18) at the lower end, and the other end of the drainage tube (18) is connected to an acid detector (17). The two acid detectors (17) are located in two mounting slots respectively.

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