A test device and method for high-voltage isolation products with condition simulation function

Abstract

This invention discloses a testing device and method for high-voltage isolation products with state simulation function, relating to the field of testing technology. The testing device includes a testing chamber, a testing module, a water tank, a gas-liquid separator, and an adjustment mechanism. The testing module is electrically connected to the high-voltage isolation product and is used to detect the working state of the high-voltage isolation product. The water tank is connected to the testing chamber, and the gas-liquid separator is connected to the adjustment mechanism. The adjustment mechanism is securely connected to the testing chamber and is located inside the testing chamber. The adjustment mechanism is used to adjust the uniformity of water mist inside the testing chamber. First, the product to be tested is placed inside the testing chamber, and the contacts of the testing module are connected to the product. The water tank is equipped with a water pump, which guides water into the testing chamber to simulate the humid environment encountered by the product during use, thereby achieving environmental adaptability testing of the product.

Description

Technical Field

[0001] This invention relates to the field of testing technology, specifically to a testing device and method for high-voltage isolation products with state simulation function. Background Technology

[0002] High-voltage isolation products are devices or components used in power systems to electrically isolate different voltage levels. These products effectively prevent direct contact between high-voltage and low-voltage electricity, ensuring the safety of the power system and preventing electrical accidents. They are generally suitable for high-voltage power systems, industrial equipment, communication systems, and other fields.

[0003] However, high-voltage isolation products are generally installed outdoors. For example, high-voltage disconnect switches are used to disconnect or connect current in high-voltage power systems and to isolate circuits. During use, they often encounter weather such as rain and snow. In order to ensure the reliability of the products, they need to be tested before leaving the factory. However, existing testing equipment generally does not have the function of simulating the use environment, and the comprehensiveness of the test cannot be guaranteed. Summary of the Invention

[0004] The purpose of this invention is to provide a testing device and method for high-voltage isolation products with state simulation function, so as to solve the problems raised in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: The testing equipment includes a testing chamber, a testing module, a water tank, a gas-liquid separator, and an adjustment mechanism. The testing module is electrically connected to the high-voltage isolation product and is used to detect the working status of the high-voltage isolation product. The water tank is connected to the testing chamber, the gas-liquid separator is connected to the adjustment mechanism, and the adjustment mechanism is securely connected to the testing chamber. The adjustment mechanism is located inside the testing chamber and is used to adjust the uniformity of the water mist inside the testing chamber.

[0006] The testing chamber provides a relatively sealed space for product testing. First, the product to be tested is placed inside the testing chamber, and the contacts of the test module are connected to the product. The water tank is equipped with a water pump, which directs water into the testing chamber to simulate the humid environment encountered by the product during use, thereby achieving environmental adaptability testing of the product. The adjustment mechanism ensures the uniformity of the water mist during testing, thereby improving the accuracy of the test. The adjustment mechanism can also drive the water mist circulation inside the testing chamber, and the water mist flowing out is recycled back into the water tank through the gas-liquid separator.

[0007] Furthermore, the testing chamber is equipped with a working chamber and an atomizing nozzle. A water supply pipe is provided on one side of the water tank, and the outlet of the water supply pipe is connected to the atomizing nozzle. The output end of the atomizing nozzle faces the adjustment mechanism.

[0008] The working chamber is used to provide a sealed space for testing. Water in the water tank is pumped into the water supply pipe by a water pump, and then injected into the working chamber through an atomizing nozzle, thereby increasing the humidity around the regulating mechanism.

[0009] Furthermore, the adjustment mechanism includes a sealing cover, a flow guide half-ring, a suction column, an air intake assembly, a flow guide plate, and a connecting pipe. The side wall of the sealing cover is snapped into the detection box, and the bottom of the sealing cover abuts against the flow guide half-ring. The flow guide half-ring is securely connected to the detection box. There are two sets of flow guide half-rings, which are arranged alternately. The suction column is securely connected to the detection box and is located at the center of the two sets of flow guide half-rings. The air intake assembly is securely connected to the flow guide half-ring and is used to adjust the airflow rate entering the flow guide half-ring. The flow guide plate is securely connected to the inner wall of the flow guide half-ring. One end of the connecting pipe is connected to the outlet of the suction column, and the other end of the connecting pipe is connected to the gas-liquid separator.

[0010] To facilitate product placement within the detection space formed by the two guide rings in the adjustment mechanism, a movable sealing cover is used. After the product is placed in position, the sealing cover is snapped onto the detection chamber, creating a relatively sealed detection space with the two guide rings. The suction column extracts the gas and guides it through a connecting pipe into the gas-liquid separator for moisture recovery and reuse. Because the two guide rings are staggered, and the area near the central suction column is under negative pressure, airflow enters from the intersection of the two guide rings and, guided by the arc-shaped inner wall of the guide rings, flows spirally towards the suction column. This means the circulating water mist continuously flows spirally through the product within the two guide rings, ensuring uniform contact with the water mist throughout the product and improving the simulation effect. However, the uneven distribution of water mist within the working chamber causes fluctuations in the amount of water mist flowing into the two guide rings. The air intake assembly adjusts the airflow rate into the guide rings to maintain a consistent amount of water mist.

[0011] Furthermore, several guide vanes are arranged on the inner wall of the guide semi-ring, and a guide channel is formed between two adjacent guide vanes.

[0012] The air deflector is used to guide the airflow, causing it to flow along the guide channel and effectively dividing the incoming airflow into several layers.

[0013] Furthermore, the suction column is equipped with an exhaust channel and an intake channel. The exhaust channel is connected to the intake channel, and the outlet of the exhaust channel is connected to the connecting pipe. An intake fan is installed in the exhaust channel. Several groups of intake channels are arranged along the axial direction of the suction column, and the positions of the several intake channels correspond one-to-one with the positions of the guide channels.

[0014] The intake fan rotates, creating a negative pressure at the exhaust channel, causing the gas in the guide semi-ring to flow into the exhaust channel along the intake channel, and then into the connecting pipe through the exhaust channel; while the intake channel arranged corresponding to the guide channel allows the layered airflow to flow out from the same layer, providing secondary guidance for the airflow, making the airflow state of each layer tend to be stable.

[0015] Furthermore, the intake components are located at the inlet of the guide channel, and there are several sets of intake components, with the positions of the intake components corresponding to those of the intake channels.

[0016] The guide vanes and air intake channels work together to allow the airflow to flow in layers. When the water mist content in a certain layer of airflow changes, the air intake volume is adjusted by the air intake component at the corresponding position. When the water mist content in a certain layer decreases, the air intake volume is increased by the air intake component at the corresponding position, thereby increasing the water mist content. This ensures that the water mist content in the airflow between different layers remains consistent, thus keeping the humidity in the detection space consistent.

[0017] Furthermore, a detection component is provided inside the air intake channel. The detection component is used to detect the concentration of water mist passing through the air intake channel. The detection component includes a photoresistor and a light-emitting plate. The photoresistor and the light-emitting plate are arranged facing each other on both sides of the air intake channel. The photoresistor is connected to an external detection power supply. The detection power supply and the photoresistor form a detection system.

[0018] The higher the water mist content in the airflow, the lower the light transmittance. By placing a detection component at the air intake channel to detect the light transmittance in the airflow, the amount of water mist in the airflow can be determined. The stronger the light received by the photoresistor, the lower the resistance value. That is, the higher the resistance value detected by the detection system of the photoresistor, the higher the water mist content in this layer of airflow.

[0019] Furthermore, the intake assembly includes a support frame, a slide plate, a support spring, and an electromagnet. The support frame is fastened to the guide semi-ring. The support frame has a groove inside, and the slide plate is slidably connected to the groove. One end of the support spring is fastened to the inner wall of the groove, and the other end of the support spring is fastened to the slide plate. The electromagnet is fastened to the inner wall of the groove and is electrically connected to the detection system. The electromagnet is located at the end of the groove away from the slide plate, and an attraction block is provided on the end of the slide plate near the electromagnet. The attraction block is made of iron material.

[0020] When the detection system detects a decrease in the resistance of the photoresistor, the current transmitted to the electromagnet increases accordingly, increasing the electromagnet's magnetic force and its attraction to the iron block. This causes the slide plate to shift along the groove towards the electromagnet, compressing the support spring and increasing the air intake opening in the guide channel. Consequently, the air intake volume increases, and the water mist content at the corresponding location increases. Conversely, when the detection system detects an increase in the resistance of the photoresistor, the current transmitted to the electromagnet decreases, reducing the electromagnet's magnetic force. Under the elastic force of the support spring, the slide plate shifts along the groove away from the electromagnet, decreasing the air intake opening in the guide channel and reducing the air intake volume. This results in a decrease in the water mist content at the corresponding location. In essence, this system automatically controls the air intake volume based on the water mist content in the airflow at different locations, ensuring uniform water mist content throughout the system and improving detection efficiency.

[0021] Furthermore, the gas-liquid separator is equipped with a connection port, an exhaust port, and a drain port. The connection port is connected to a connecting pipe, and the drain port is connected to a water tank.

[0022] The gas-liquid separator is connected to the outlet of the connecting pipe through the connection port, thereby recovering and reusing the airflow that has been circulated through the regulating mechanism. The separated water returns to the water tank through the drain port, and the gas is discharged into the air through the exhaust port.

[0023] Furthermore, the testing method is as follows:

[0024] S1: Place the product to be tested into the testing chamber;

[0025] S2: Attach the sealing cap to the test box and start the atomizing nozzle;

[0026] S3: The uniformity of water mist inside the detection chamber is adjusted to a suitable level by adjusting the mechanism, thereby simulating a high humidity environment;

[0027] S4: The test module detects the status of the product and outputs the test results.

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

[0029] 1. With the help of two staggered guide semi-rings and the suction column placed between the two guide semi-rings, the airflow will flow in from the intersection of the two guide semi-rings and, guided by the arc-shaped inner wall of the guide semi-rings, flow in a spiral shape towards the suction column. In other words, the circulating water mist will flow in a spiral shape through the product located in the two guide semi-rings, so that the product can be evenly contacted by the water mist, thus improving the effect of state simulation.

[0030] 2. The guide vanes and air intake channels work together to make the airflow flow in layers. When the water mist content in a certain layer of airflow changes, the air intake volume is adjusted by the air intake component at the corresponding position. When the water mist content in a certain layer decreases, the air intake volume is increased by the air intake component at the corresponding position, thereby increasing the water mist content. This ensures that the water mist content in the airflow between different layers remains consistent, thus keeping the humidity in the detection space consistent. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 This is a partial cross-sectional view of the present invention;

[0033] Figure 3 This is a schematic diagram of the adjustment mechanism;

[0034] Figure 4 This is a partial sectional view of the attraction column;

[0035] Figure 5 for Figure 5 Enlarged view of a portion at point A;

[0036] Figure 6 This is a schematic diagram of the air intake assembly;

[0037] Figure 7 for Figure 6 A magnified view of section B;

[0038] Figure 8 This is a schematic diagram of the airflow direction for the guide semi-circle;

[0039] Figure 9 for Figure 8 A magnified view of a portion of point C.

[0040] In the diagram: 1. Detection box; 11. Working chamber; 12. Atomizing nozzle; 2. Test module; 3. Water tank; 31. Water supply pipe; 4. Gas-liquid separator; 41. Connection port; 42. Exhaust port; 43. Drain port; 5. Adjustment mechanism; 51. Sealing cover; 52. Guide semi-ring; 53. Suction column; 531. Exhaust channel; 532. Inlet channel; 54. Inlet assembly; 541. Support frame; 5411. Slide groove; 542. Slide plate; 543. Support spring; 544. Electromagnet; 545. Suction block; 55. Guide plate; 551. Guide channel; 56. Connecting pipe; 57. Intake fan; 58. Detection assembly; 581. Photoresistor; 582. Light-emitting plate. Detailed Implementation

[0041] The technical solutions of 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 scope of protection of the present invention.

[0042] Example: Figures 1-9 As shown, the present invention provides a testing device and method for high-voltage isolation products with state simulation function. The testing device includes a testing chamber 1, a testing module 2, a water tank 3, a gas-liquid separator 4, and an adjustment mechanism 5. The testing module 2 is electrically connected to the high-voltage isolation product and is used to detect the working state of the high-voltage isolation product. The water tank 3 is connected to the testing chamber 1, and the gas-liquid separator 4 is connected to the adjustment mechanism 5. The adjustment mechanism 5 is fixedly connected to the testing chamber 1 and is located inside the testing chamber 1. The adjustment mechanism 5 is used to adjust the uniformity of water mist inside the testing chamber 1.

[0043] The testing chamber 1 provides a relatively sealed space for product testing. First, the product to be tested is placed inside the testing chamber 1, and the contacts of the testing module 2 are connected to the product. The water tank 3 is equipped with a water pump, which can guide water into the testing chamber 1 to simulate the humid environment encountered by the product during use, thereby realizing the environmental adaptability test of the product. The adjustment mechanism 5 can ensure the uniformity of water mist during testing, thereby improving the accuracy of testing. The adjustment mechanism 5 can also drive the water mist circulation in the testing chamber 1, and the water mist flowing out is recycled back into the water tank 3 through the gas-liquid separator 4.

[0044] The test chamber 1 is equipped with a working chamber 11 and an atomizing nozzle 12. A water supply pipe 31 is provided on one side of the water tank 3. The outlet of the water supply pipe 31 is connected to the atomizing nozzle 12. The output end of the atomizing nozzle 12 faces the adjustment mechanism 5.

[0045] The working chamber 11 is used to provide a sealed space for testing. Water in the water tank 3 is pumped into the water supply pipe 31 by a water pump, and then injected into the working chamber 11 through the atomizing nozzle 12, thereby increasing the humidity around the regulating mechanism 5.

[0046] The regulating mechanism 5 includes a sealing cover 51, a flow guide half-ring 52, a suction column 53, an air intake assembly 54, a flow guide plate 55, and a connecting pipe 56. The side wall of the sealing cover 51 is snapped into the detection box 1, and the bottom of the sealing cover 51 abuts against the flow guide half-ring 52. The flow guide half-ring 52 is fixedly connected to the detection box 1. There are two sets of flow guide half-rings 52, which are arranged alternately. The suction column 53 is fixedly connected to the detection box 1 and is located at the center of the two sets of flow guide half-rings 52. The air intake assembly 54 is fixedly connected to the flow guide half-ring 52 and is used to regulate the airflow entering the flow guide half-ring 52. The flow guide plate 55 is fixedly connected to the inner wall of the flow guide half-ring 52. One end of the connecting pipe 56 is connected to the outlet of the suction column 53, and the other end of the connecting pipe 56 is connected to the gas-liquid separator 4.

[0047] To facilitate product placement into the detection space formed by the two guide rings 52 within the regulating mechanism 5, a movable sealing cover 51 is provided. After the product is placed in position, the sealing cover 51 is snapped onto the detection chamber 1, thus creating a relatively sealed detection space with the two guide rings 52. The suction column 53 extracts the gas and guides it through the connecting pipe 56 into the gas-liquid separator 4 for moisture recovery and reuse. Furthermore, because the two guide rings 52 are staggered, and the area near the central suction column 53 is under negative pressure, the airflow... The water mist flows in from the intersection of the two guide semi-rings 52 and, guided by the arc-shaped inner wall of the guide semi-rings 52, flows in a spiral towards the suction column. In other words, the circulating water mist will flow in a spiral continuously through the product located in the two guide semi-rings 52, so that the product can be evenly contacted with the water mist, thus improving the effect of state simulation. However, since the water mist distribution in the working chamber 11 is uneven, the amount of water mist flowing into the two guide semi-rings 52 will fluctuate. The air intake component 54 is used to adjust the air flow rate entering the guide semi-rings 52 to keep the amount of water mist flowing in consistent.

[0048] Several guide vanes 55 are arranged on the inner wall of the guide semi-ring 52, and a guide channel 551 is formed between two adjacent guide vanes 55.

[0049] The guide vane 55 is used to guide the airflow, so that the airflow flows along the guide channel 551, and invisibly divides the incoming airflow into several layers.

[0050] The suction column 53 is provided with an exhaust flow channel 531 and an intake flow channel 532. The exhaust flow channel 531 is connected to the intake flow channel 532. The outlet of the exhaust flow channel 531 is connected to the connecting pipe 56. An intake fan 57 is provided in the exhaust flow channel 531. Several groups of intake flow channels 532 are arranged along the axial direction of the suction column 53. The positions of the several intake flow channels 532 correspond one-to-one with the positions of the guide flow channels 551.

[0051] The intake fan 57 rotates, creating a negative pressure at the exhaust channel 531, causing the gas in the guide semi-ring 52 to flow into the exhaust channel 531 along the intake channel 532, and then into the connecting pipe 56 through the exhaust channel 531; while the intake channel 532, which is arranged corresponding to the guide channel 551, allows the airflow that has been layered to flow out from the same layer, and performs secondary guidance on the airflow, so that the airflow state of each layer tends to be stable.

[0052] The intake assembly 54 is located at the inlet of the guide channel 551. Several sets of intake assemblies 54 are arranged, and the positions of several intake assemblies 54 correspond to those of the intake channel 532.

[0053] The guide vane 55 and the air intake channel 532 work together to make the airflow flow in layers. When the water mist content in a certain layer of airflow changes, the air intake volume is adjusted by the air intake component 54 at the corresponding position. When the water mist content in a certain layer decreases, the air intake component 54 at the corresponding position increases the air intake volume, thereby increasing the water mist content. This ensures that the water mist content in the airflow between different layers remains consistent, thereby keeping the humidity in the detection space consistent.

[0054] The air intake channel 532 is equipped with a detection component 58, which is used to detect the concentration of water mist passing through the air intake channel 532. The detection component 58 includes a photoresistor 581 and a light-emitting plate 582. The photoresistor 581 and the light-emitting plate 582 are arranged facing each other on both sides of the air intake channel 532. The photoresistor 581 is connected to an external detection power supply. The detection power supply and the photoresistor 581 form a detection system.

[0055] The higher the water mist content in the airflow, the worse the light transmittance. By arranging the detection component 58 at the air intake channel 532 to detect the light transmittance in the airflow, the amount of water mist in the airflow can be determined. The stronger the light received by the photoresistor 581, the lower the resistance value. That is, the higher the resistance value of the photoresistor 581 detected by the detection system, the higher the water mist content in this layer of airflow.

[0056] The intake assembly 54 includes a support frame 541, a slide plate 542, a support spring 543, and an electromagnet 544. The support frame 541 is fastened to the guide semi-ring 52. The support frame 541 has a groove 5411 inside. The slide plate 542 is slidably connected to the groove 5411. One end of the support spring 543 is fastened to the inner wall of the groove 5411, and the other end of the support spring 543 is fastened to the slide plate 542. The electromagnet 544 is fastened to the inner wall of the groove 5411 and is electrically connected to the detection system. The electromagnet 544 is located at the end of the groove 5411 away from the slide plate 542. An attraction block 545 is provided on the end of the slide plate 542 near the electromagnet 544. The attraction block 545 is made of iron.

[0057] When the detection system detects a decrease in the resistance of the photoresistor 581, the current transmitted to the electromagnet 544 increases accordingly, increasing the magnetic force of the electromagnet 544 and thus increasing the attraction force on the iron attracting block 545. This causes the slide plate 542 to shift along the slide groove 5411 towards the electromagnet 544, compressing the support spring 543. This, in turn, increases the air intake opening of the guide channel 551, resulting in a corresponding increase in air intake and a corresponding increase in the water mist content at that location. When the detection system detects a decrease in the resistance of the photoresistor 581... When the value increases, the current transmitted to the electromagnet 544 decreases accordingly, the magnetic force of the electromagnet 544 decreases, and under the elastic force of the support spring 543, the slide plate 542 shifts away from the electromagnet 544 along the slide groove 5411, which reduces the air intake opening of the guide channel 551 at this point, and the air intake volume also decreases accordingly. The water mist content at the corresponding position will decrease accordingly. That is, the amount of air intake is automatically controlled according to the amount of water mist in the airflow at different positions, so that the water mist content at each place remains uniform, thereby improving the detection effect.

[0058] The gas-liquid separator 4 is equipped with a connection port 41, an exhaust port 42 and a drain port 43. The connection port 41 is connected to the connecting pipe 56 and the drain port 43 is connected to the water tank 3.

[0059] The gas-liquid separator 4 is connected to the outlet of the connecting pipe 56 through the connection port 41, thereby recovering and reusing the airflow circulated by the regulating mechanism 5. The separated water returns to the water tank 3 through the drain port 43, and the gas is discharged into the air through the exhaust port 42.

[0060] The testing method is as follows:

[0061] S1: Place the product to be tested into test chamber 1;

[0062] S2: Attach the sealing cap 51 to the test box 1 and start the atomizing nozzle 12;

[0063] S3: Adjust the uniformity of water mist in the detection chamber 1 to a suitable level by adjusting mechanism 5, thereby simulating a high humidity environment;

[0064] S4: Test the product status through test module 2 and output the test results.

[0065] The working principle of this invention is as follows: First, the product to be tested is placed inside the testing chamber 1, and the contacts of the testing module 2 are connected to the product. Then, the sealing cover 51 is snapped onto the testing chamber 1. The suction column 53 is used to extract the gas, which is then introduced into the gas-liquid separator 4 through the connecting pipe 56 to recover and reuse the moisture in the gas. Furthermore, because the two guide semi-rings 52 are staggered, and the area near the central suction column 53 is under negative pressure, the airflow flows in from the intersection of the two guide semi-rings 52 and, guided by the arc-shaped inner wall of the guide semi-rings 52, flows spirally towards the suction column. This means that the circulating water mist will flow in a spiral shape through the product located within the two guide semi-rings 52, so that the water mist can be evenly contacted throughout the product. The guide plate 55 and the air intake channel 532 work together to make the airflow flow in layers. When the water mist content in a certain layer of airflow changes, the air intake volume is adjusted by the corresponding air intake component 54. When the water mist content in a certain layer decreases, the air intake volume is increased by the corresponding air intake component 54, thereby increasing the water mist content. When the adjustment mechanism 5 simulates the product's usage environment, the test module 2 detects the product's status and outputs the test results.

[0066] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A testing device for high-voltage isolation products with state simulation function, characterized in that: The testing equipment includes a testing box (1), a testing module (2), a water tank (3), a gas-liquid separator (4), and an adjustment mechanism (5). The testing module (2) is electrically connected to the high-voltage isolation product and is used to test the working status of the high-voltage isolation product. The water tank (3) is connected to the testing box (1), and the gas-liquid separator (4) is connected to the adjustment mechanism (5). The adjustment mechanism (5) is tightly connected to the testing box (1) and is located inside the testing box (1). The adjustment mechanism (5) is used to adjust the uniformity of the water mist inside the testing box (1). The adjusting mechanism (5) includes a sealing cover (51), a guide semi-ring (52), a suction column (53), an air intake assembly (54), a guide plate (55), and a connecting pipe (56). The side wall of the sealing cover (51) is snapped into the detection box (1), and the bottom of the sealing cover (51) abuts against the guide semi-ring (52). The guide semi-ring (52) is tightly connected to the detection box (1). There are two sets of guide semi-rings (52), and the two sets of guide semi-rings (52) are arranged alternately. The suction column (56) 3) It is tightly connected to the detection box (1), the suction column (53) is located at the center of the two sets of guide semi-rings (52), the air intake component (54) is tightly connected to the guide semi-ring (52), the air intake component (54) is used to adjust the air flow rate entering the guide semi-ring (52), the guide plate (55) is tightly connected to the inner wall of the guide semi-ring (52), one end of the connecting pipe (56) is connected to the outlet of the suction column (53), and the other end of the connecting pipe (56) is connected to the gas-liquid separator (4); The suction column (53) is provided with an exhaust channel (531) and an intake channel (532). The exhaust channel (531) is connected to the intake channel (532). The outlet of the exhaust channel (531) is connected to the connecting pipe (56). An air intake fan (57) is provided in the exhaust channel (531). Several groups of intake channels (532) are arranged along the axial direction of the suction column (53). The positions of several intake channels (532) correspond one-to-one with the positions of the guide channel (551). The air intake channel (532) is provided with a detection component (58). The detection component (58) is used to detect the concentration of water mist passing through the air intake channel (532). The detection component (58) includes a photoresistor (581) and a light-emitting plate (582). The photoresistor (581) and the light-emitting plate (582) are arranged facing each other on both sides of the air intake channel (532). The photoresistor (581) is connected to an external detection power supply. The detection power supply and the photoresistor (581) form a detection system. The air intake assembly (54) includes a support frame (541), a slide plate (542), a support spring (543), and an electromagnet (544). The support frame (541) is fastened to the guide semi-ring (52). The support frame (541) is provided with a slide groove (5411). The slide plate (542) is slidably connected to the slide groove (5411). One end of the support spring (543) is fastened to the inner wall of the slide groove (5411), and the other end of the support spring (543) is fastened to the slide plate (542). The electromagnet (544) is fastened to the inner wall of the slide groove (5411). The electromagnet (544) is electrically connected to the detection system. The electromagnet (544) is located at the end of the slide groove (5411) away from the slide plate (542). An attraction block (545) is provided on the slide plate (542) near the electromagnet (544). The attraction block (545) is made of iron.

2. The testing equipment for high-voltage isolation products with state simulation function according to claim 1, characterized in that: The detection box (1) is provided with a working chamber (11) and an atomizing nozzle (12). A water supply pipe (31) is provided on one side of the water tank (3). The outlet of the water supply pipe (31) is connected to the atomizing nozzle (12). The output end of the atomizing nozzle (12) faces the adjustment mechanism (5).

3. The testing equipment for high-voltage isolation products with state simulation function according to claim 2, characterized in that: Several guide vanes (55) are arranged on the inner wall of the guide semi-ring (52), and a guide channel (551) is formed between two adjacent guide vanes (55).

4. The testing equipment for high-voltage isolation products with state simulation function according to claim 3, characterized in that: The intake assembly (54) is located at the inlet of the guide channel (551). Several sets of intake assemblies (54) are arranged, and the positions of several intake assemblies (54) correspond to those of the intake channel (532).

5. A test device for high-voltage isolation products with state simulation function according to claim 1, characterized in that: The gas-liquid separator (4) is provided with a connection port (41), an exhaust port (42) and a drain port (43). The connection port (41) is connected to the connecting pipe (56), and the drain port (43) is connected to the water tank (3).

6. The test method for a test device with state simulation function for high-voltage isolation products according to claim 5, characterized in that: The testing method is as follows: S1: Place the product to be tested into the testing box (1); S2: Attach the sealing cap (51) to the test box (1) and start the atomizing nozzle (12); S3: Adjust the uniformity of water mist in the detection box (1) to a suitable level by adjusting the mechanism (5) to simulate a high humidity environment; S4: The product status is detected by the test module (2), and the test results are output.

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