Testing equipment and method for high-voltage isolation product with state simulation function

Abstract

The invention discloses a test device and method for a high-voltage isolation product with a state simulation function, and relates to the technical field of detection, the test device comprises a detection box, a test module, a water tank, a gas-liquid separator and an adjusting mechanism, the test module is electrically connected with the high-voltage isolation product, the test module is used for detecting the working state of the high-voltage isolation product, and the water tank is connected with the gas-liquid separator. The water tank is communicated with the detection box, the gas-liquid separator is communicated with the adjusting mechanism, the adjusting mechanism is fixedly connected with the detection box, and the adjusting mechanism is located in the detection box and used for adjusting the uniformity degree of water mist in the detection box. Firstly, a product needing to be detected is placed in the detection box, a contact of the test module is connected to the product, the water pump is arranged in the water tank and can guide water into the detection box, the water pump is used for simulating a humid environment encountered by the product in use, and environmental adaptability detection of the product is achieved.

Description

Technical Field

[0001] The present invention relates to the field of detection technology, and specifically to a test device and method for a high-voltage isolation product with a state simulation function. Background Art

[0002] High-voltage isolation products are devices or components used in power systems to electrically isolate different voltage levels. Such products can effectively prevent direct contact between high-voltage electricity and low-voltage electricity, ensure the safety of the power system, and avoid electrical accidents. They are generally applicable to fields such as high-voltage power systems, industrial equipment, and communication systems.

[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 achieve circuit isolation. During use, they often encounter weather such as rain and snow. To ensure the reliability of the products, it is necessary to test them 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 the present invention is to provide a test device and method for a high-voltage isolation product with a state simulation function to solve the problems raised in the prior art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions: The test device includes a detection box, a test module, a water tank, a gas-liquid separator, and an adjustment mechanism. The test 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 communicated with the detection box, the gas-liquid separator is communicated with the adjustment mechanism, and the adjustment mechanism is fixedly connected to the detection box. The adjustment mechanism is located inside the detection box and is used to adjust the uniformity of the water mist in the detection box.

[0006] The detection box is used to provide a relatively sealed space for the detection of the product. First, the product to be detected is placed inside the detection box, and the contacts of the test module are connected to the product. A water pump is provided inside the water tank, and the water pump can direct water into the detection box to simulate the humid environment encountered during the use of the product and achieve the environmental adaptability detection of the product. The adjustment mechanism can ensure the uniformity of the water mist during detection, thereby improving the detection accuracy. The adjustment mechanism can also drive the water mist in the detection box to circulate, and the water mist flowing out is recycled back into the water tank through the gas-liquid separator.

[0007] Further, a working cavity and atomizing nozzles are provided inside the detection box. A water supply pipe is provided on one side of the water tank, and the water outlet of the water supply pipe is communicated with the atomizing nozzles. The output end of the atomizing nozzles faces the adjustment mechanism.

[0008] The working chamber is used to provide a sealed space for the test. The 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 adjusting mechanism.

[0009] Furthermore, the adjusting mechanism includes a sealing cover, a guiding semi-ring, a suction column, an air inlet assembly, guiding vanes, and a connecting pipe. The side wall of the sealing cover is clamped with the detection box, the bottom of the sealing cover abuts against the guiding semi-ring, the guiding semi-ring is fixedly connected to the detection box, there are two groups of guiding semi-rings which are arranged staggeredly, the suction column is fixedly connected to the detection box, the suction column is located at the center of the two groups of guiding semi-rings, the air inlet assembly is fixedly connected to the guiding semi-ring, the air inlet assembly is used to adjust the air flow rate entering the guiding semi-ring, the guiding vanes are fixedly connected to the inner wall of the guiding semi-ring, one end of the connecting pipe is communicated with the outlet of the suction column, and the other end of the connecting pipe is communicated with the gas-liquid separator.

[0010] In order to facilitate placing the product into the detection space formed by the two guiding semi-rings in the adjusting mechanism, by setting a movable sealing cover, after the product is placed in place, the sealing cover is clamped onto the detection box, so that the sealing cover and the two guiding semi-rings form a relatively sealed detection space. The suction column is used to extract the gas and then introduce it into the gas-liquid separator through the connecting pipe to recycle and reuse the moisture in the gas; and because the two guiding semi-rings are arranged staggeredly, and the area near the suction column located at the center is in a negative pressure state, the air flow will flow in from the staggered openings of the two guiding semi-rings and flow in a spiral shape towards the suction column under the guidance of the arc-shaped inner wall of the guiding semi-ring. That is to say, the circulating water mist will continuously flow through the product located in the two guiding semi-rings in a spiral shape, so that the product can evenly contact the water mist everywhere, improving the effect of state simulation; however, due to the uneven distribution of the water mist in the working chamber, the amount of water mist flowing into the two guiding semi-rings will fluctuate. The air flow rate entering the guiding semi-ring is adjusted through the air inlet assembly to make the amount of flowing water mist consistent.

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

[0012] The guiding vanes are used to guide the air flow so that the air flow flows along the guiding flow channel and divides the inflowing air flow into several layers invisibly.

[0013] Furthermore, an exhaust flow channel and an intake flow channel are provided in the suction column. The exhaust flow channel is communicated with the intake flow channel, the outlet of the exhaust flow channel is communicated with the connecting pipe, an intake fan is provided in the exhaust flow channel, and a number of groups of intake flow channels are arranged along the axial direction of the suction column, and the positions of the number of intake flow channels correspond to the positions of the guiding flow channels one by one.

[0014] The intake fan rotates, creating a negative pressure at the exhaust flow channel, causing the gas within the guiding half-ring to flow into the exhaust flow channel along the intake flow channel and then into the connecting pipe through the exhaust flow channel; while the intake flow channel arranged corresponding to the guiding flow channel enables the stratified airflows to flow out from the same layer, providing a secondary guidance to the airflows, making the flow states of the airflows in each layer tend to be stable.

[0015] Furthermore, the intake assembly is located at the inlet of the guiding flow channel. There are several groups of intake assemblies arranged, and the positions of the several intake assemblies correspond to those of the intake flow channel.

[0016] The guiding vanes and the intake flow channel cooperate to make the airflows flow in layers. When the water mist content in a certain layer of the airflow changes, the intake volume is adjusted through the intake assembly at the corresponding position. When the water mist content in a certain layer decreases, the intake assembly at the corresponding position increases the intake volume, thereby increasing the water mist content; this can make the water mist content in the airflows between different levels consistent, and thus make the humidity in the detection space consistent.

[0017] Furthermore, a detection assembly is provided within the intake flow channel. The detection assembly is used to detect the water mist concentration of the airflow passing through the intake flow channel. The detection assembly includes a photosensitive resistor and a light-emitting plate. The photosensitive resistor and the light-emitting plate are arranged facing each other on both sides of the intake flow channel. The photosensitive resistor is externally connected to a detection power supply, and the detection power supply and the photosensitive resistor form a detection system.

[0018] The more water mist content there is in the airflow, the worse the light transmittance. By arranging the detection assembly at the intake flow channel to detect the light transmittance of the airflow, the amount of water mist in the airflow can be judged. The stronger the light received by the photosensitive resistor, the smaller its resistance value. That is, the larger the resistance value of the photosensitive resistor detected by the detection system, the less water mist content there is in this layer of airflow.

[0019] Furthermore, the intake assembly includes a support frame, a sliding plate, a support spring, and an electromagnet. The support frame is fixedly connected to the guiding half-ring. There is a sliding groove within the support frame. The sliding plate is slidably connected to the sliding groove. One end of the support spring is fixedly connected to the inner wall of the sliding groove, and the other end of the support spring is fixedly connected to the sliding plate. The electromagnet is fixedly connected to the inner wall of the sliding groove. The electromagnet is electrically connected to the detection system. The electromagnet is located at one end of the sliding groove far from the sliding plate. There is an attracting block at one end of the sliding plate close to the electromagnet. The attracting block is made of iron material.

[0020] When the detection system detects that the resistance value of the photoresistor increases, the current transmitted to the electromagnet increases accordingly, causing the magnetic force of the electromagnet to increase, the attraction force on the iron attracting block to increase, the sliding plate to shift along the chute towards the electromagnet side, the support spring to be compressed under force, and the air intake opening of the guiding flow channel at this position to increase, so the air intake volume increases accordingly, and the water mist content at the corresponding position will increase accordingly; when the detection system detects that the resistance value of the photoresistor decreases, the current transmitted to the electromagnet decreases accordingly, the magnetic force of the electromagnet decreases, and under the elastic force of the support spring, the sliding plate shifts along the chute away from the electromagnet side, causing the air intake opening of the guiding flow channel at this position to decrease, the air intake volume to decrease accordingly, and the water mist content at the corresponding position to decrease accordingly; that is, it realizes automatically controlling the air intake volume according to the amount of water mist in the airflow at different positions, making the water mist content uniform everywhere to improve the detection effect.

[0021] Further, the gas-liquid separator is provided with a connection port, an exhaust port and a drain port. The connection port is communicated with the communicating pipe, and the drain port is communicated with the water tank.

[0022] The gas-liquid separator is communicated to the outlet of the communicating pipe through the connection port, so as to recycle and reuse the airflow passing through the regulating mechanism. The separated water returns to the water tank through the drain port, and the gas is discharged into the air from the exhaust port.

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

[0024] S1: Put the product to be tested into the detection box.

[0025] S2: Snap the sealing cover onto the detection box and start the atomizing nozzle.

[0026] S3: Adjust the uniformity of the water mist in the detection box to a suitable level through the regulating mechanism, so as to simulate a humid environment.

[0027] S4: Detect the state of the product through the testing module and output the detection result.

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

[0029] 1. Under the guidance of the two staggered diversion semi-rings and the attracting column arranged in the middle of the two diversion semi-rings, the airflow will flow in from the staggered opening of the two diversion semi-rings, and under the guidance of the arc-shaped inner wall of the diversion semi-ring, it will flow spirally towards the attracting column. That is to say, the circulating water mist will flow through the product located within the two diversion semi-rings in a spiral shape continuously, so that the product can evenly contact the water mist everywhere, improving the effect of state simulation.

[0030] 2. The flow guide vanes and the intake air flow path cooperate to enable the air flow to flow in layers. When the water mist content in a certain layer of air flow changes, the intake air volume is adjusted through the intake air component at the corresponding position. When the water mist content in a certain layer decreases, the intake air component at the corresponding position increases the intake air volume, thereby increasing the water mist content. In this way, the water mist content in the air flow between different levels can be kept consistent, and the humidity in the detection space can be kept consistent. Description of the Drawings

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

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

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

[0034] Figure 4 It is a partial cross-sectional view of the attraction column;

[0035] Figure 5 It is Figure 4 The enlarged partial view at position A of

[0036] Figure 6 It is a schematic diagram of the intake air component;

[0037] Figure 7 It is Figure 6 The enlarged partial view at position B of

[0038] Figure 8 It is a schematic diagram of the air flow direction of the guide half ring;

[0039] Figure 9 It is Figure 8 The enlarged partial view at position C of

[0040] In the figure: 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 half ring; 53. Attraction column; 531. Exhaust air flow path; 532. Intake air flow path; 54. Intake air component; 541. Support frame; 5411. Slide groove; 542. Slide plate; 543. Support spring; 544. Electromagnet; 545. Attraction block; 55. Flow guide vane; 551. Guide flow path; 56. Connecting pipe; 57. Suction fan; 58. Detection component; 581. Photoresistor; 582. Light emitting plate. Detailed Embodiments

[0041] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

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

[0043] The detection box 1 is used to provide a relatively sealed space for the detection of the product. First, the product to be detected is placed inside the detection box 1, and the contacts of the test module 2 are connected to the product. A water pump is provided inside the water tank 3. The water pump can direct water into the detection box 1 to simulate the humid environment encountered during the use of the product, so as to realize the environmental adaptability detection of the product. The adjustment mechanism 5 can ensure the uniformity of the water mist during detection, thereby improving the detection accuracy. The adjustment mechanism 5 can also drive the water mist in the detection box 1 to circulate, and recycle the flowing water mist back into the water tank 3 through the gas-liquid separator 4.

[0044] A working chamber 11 and an atomizing nozzle 12 are provided inside the detection box 1. A water supply pipe 31 is provided on one side of the water tank 3. The water outlet of the water supply pipe 31 is communicated with 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 the test. The water in the water tank 3 is pumped into the water supply pipe 31 by the water pump, and then injected into the working chamber 11 through the atomizing nozzle 12, so as to increase the humidity around the adjustment mechanism 5.

[0046] The adjusting mechanism 5 includes a sealing cover 51, a diversion semi-ring 52, a suction column 53, an air inlet assembly 54, a diversion vane 55 and a connecting pipe 56. The side wall of the sealing cover 51 is clamped with the detection box 1, the bottom of the sealing cover 51 abuts against the diversion semi-ring 52, and the diversion semi-ring 52 is fixedly connected to the detection box 1. There are two groups of diversion semi-rings 52, and the two groups of diversion semi-rings 52 are arranged staggeredly. The suction column 53 is fixedly connected to the detection box 1, and the suction column 53 is located at the center of the two groups of diversion semi-rings 52. The air inlet assembly 54 is fixedly connected to the diversion semi-ring 52, and the air inlet assembly 54 is used to adjust the air flow rate entering the diversion semi-ring 52. The diversion vane 55 is fixedly connected to the inner wall of the diversion semi-ring 52, and one end of the connecting pipe 56 is communicated with the outlet of the suction column 53, and the other end of the connecting pipe 56 is communicated with the gas-liquid separator 4.

[0047] To facilitate placing the product into the detection space formed by the two diversion semi-rings 52 in the adjusting mechanism 5, by providing a movable sealing cover 51, after the product is placed in place, the sealing cover 51 is then clamped onto the detection box 1, so that the sealing cover 51 and the two diversion semi-rings 52 form a relatively airtight detection space. The suction column 53 is used to extract the gas and then introduce it into the gas-liquid separator 4 through the connecting pipe 56 to recover and reuse the moisture in the gas. And because the two diversion semi-rings 52 are arranged staggeredly, and the area near the suction column 53 located at the center is in a negative pressure state, the air flow will flow in from the staggered openings of the two diversion semi-rings 52, and under the guidance of the arc-shaped inner wall of the diversion semi-ring 52, it will flow in a spiral shape towards the suction column. That is to say, the circulating water mist will continuously flow through the product located in the two diversion semi-rings 52 in a spiral shape, so that the product can evenly contact the water mist everywhere, improving the effect of state simulation. However, due to the uneven distribution of the water mist in the working chamber 11, the amount of water mist flowing into the two diversion semi-rings 52 will fluctuate. By adjusting the air flow rate entering the diversion semi-ring 52 through the air inlet assembly 54, the amount of water mist flowing in is kept consistent.

[0048] A number of diversion vanes 55 are arranged on the inner wall of the diversion semi-ring 52, and a guiding flow channel 551 is formed between two adjacent diversion vanes 55.

[0049] The diversion vane 55 is used to guide the air flow so that the air flow flows along the guiding flow channel 551, and invisibly divides the inflowing air flow into several layers.

[0050] An exhaust flow channel 531 and an intake flow channel 532 are provided in the suction column 53. The exhaust flow channel 531 is communicated with the intake flow channel 532. The outlet of the exhaust flow channel 531 is communicated with the connecting pipe 56. A suction fan 57 is provided in the exhaust flow channel 531. A number of groups of intake flow channels 532 are arranged along the axial direction of the suction column 53, and the positions of the number of intake flow channels 532 correspond to the positions of the guiding flow channels 551 one by one.

[0051] The intake fan 57 rotates, creating a negative pressure at the exhaust flow channel 531, causing the gas within the guiding half-ring 52 to flow into the exhaust flow channel 531 along the intake flow channel 532, and then into the connecting pipe 56 through the exhaust flow channel 531; while the intake flow channel 532 corresponding to the guiding flow channel 551 enables the stratified airflows to flow out from the same layer, providing a secondary guidance to the airflows, making the flow states of the airflows in each layer tend to be stable.

[0052] The intake assembly 54 is located at the inlet of the guiding flow channel 551. There are several groups of the intake assembly 54, and the positions of the several intake assemblies 54 correspond to those of the intake flow channel 532.

[0053] The guiding vanes 55 and the intake flow channel 532 cooperate to make the airflows flow in layers. When the water mist content in a certain layer of the airflow changes, the intake volume is adjusted through the intake assembly 54 at the corresponding position. When the water mist content in a certain layer decreases, the intake assembly 54 at the corresponding position increases the intake volume, thereby increasing the water mist content; this can make the water mist contents in the airflows between different levels consistent, and thus make the humidity in the detection space consistent.

[0054] A detection assembly 58 is provided within the intake flow channel 532. The detection assembly 58 is used to detect the water mist concentration of the airflow passing through the intake flow channel 532. The detection assembly 58 includes a photoresistor 581 and a light-emitting board 582. The photoresistor 581 and the light-emitting board 582 are arranged facing each other on both sides of the intake flow channel 532. The photoresistor 581 is externally connected to a detection power source, and the detection power source and the photoresistor 581 form a detection system.

[0055] The more water mist there is in the airflow, the worse the light transmittance. By arranging the detection assembly 58 at the intake flow channel 532 to detect the light transmittance of the airflow, the amount of water mist in the airflow can be judged. The stronger the light received by the photoresistor 581, the smaller its resistance value. That is, the larger the resistance value of the photoresistor 581 detected by the detection system, the less the water mist content in this layer of airflow.

[0056] The intake assembly 54 includes a support frame 541, a sliding plate 542, a support spring 543, and an electromagnet 544. The support frame 541 is firmly connected to the guiding half-ring 52. A sliding groove 5411 is provided within the support frame 541. The sliding plate 542 is slidably connected to the sliding groove 5411. One end of the support spring 543 is firmly connected to the inner wall of the sliding groove 5411, and the other end of the support spring 543 is firmly connected to the sliding plate 542. The electromagnet 544 is firmly connected to the inner wall of the sliding groove 5411. The electromagnet 544 is electrically connected to the detection system. The electromagnet 544 is located at one end of the sliding groove 5411 away from the sliding plate 542. An attracting block 545 is provided at one end of the sliding plate 542 close to the electromagnet 544. The attracting block 545 is made of iron material.

[0057] When the detection system detects that the resistance value of the photosensitive resistor 581 increases, the current transmitted to the electromagnet 544 increases accordingly, causing the magnetic force of the electromagnet 544 to increase, and the attraction force on the iron attracting block 545 to increase. As a result, the slide plate 542 deflects along the chute 5411 towards the electromagnet 544, and the support spring 543 is compressed under force. This also increases the intake opening of the guide flow channel 551 at this location, and the intake air volume increases accordingly, and the water mist content at the corresponding position will increase accordingly. When the detection system detects that the resistance value of the photosensitive resistor 581 decreases, 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 deflects along the chute 5411 away from the electromagnet 544, causing the intake opening of the guide flow channel 551 at this location to decrease, and the intake air volume decreases accordingly, and the water mist content at the corresponding position will decrease accordingly. That is, it realizes automatically controlling the intake air volume according to the amount of water mist in the airflow at different positions, making the water mist content uniform everywhere to improve the detection effect.

[0058] 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 communicated with the connecting pipe 56, and the drain port 43 is communicated with the water tank 3.

[0059] The gas-liquid separator 4 is communicated with the outlet of the connecting pipe 56 through the connection port 41, so as to recycle and reuse the airflow circulating through the adjusting mechanism 5. The separated water returns to the water tank 3 through the drain port 43, and the gas is discharged into the air from the exhaust port 42.

[0060] The test method is as follows:

[0061] S1: Place the product to be tested into the detection box 1;

[0062] S2: Snap the sealing cover 51 onto the detection box 1 and start the atomizing nozzle 12;

[0063] S3: Adjust the uniformity of the water mist in the detection box 1 to a suitable level through the adjusting mechanism 5, so as to simulate a humid environment;

[0064] S4: Detect the state of the product through the test module 2 and output the detection result.

[0065] Working principle of the present invention: First, place the product to be detected inside the detection box 1, connect the contact of the test module 2 to the product, then snap the sealing cover 51 onto the detection box 1. The suction column 53 is used to extract gas, which is then introduced into the gas-liquid separator 4 through the connecting pipe 56 for recycling the moisture in the gas. And since the two diversion half-rings 52 are arranged staggeredly, and the area near the suction column 53 at the center is in a negative pressure state, the air flow will flow in from the staggered openings of the two diversion half-rings 52 and, under the guidance of the arc-shaped inner wall of the diversion half-ring 52, flow spirally towards the suction column. That is to say, the circulating water mist will continuously flow through the product located within the two diversion half-rings 52 in a spiral shape, so that all parts of the product can evenly contact the water mist. The guide vane 55 and the intake air passage 532 cooperate to make the air flow flow in layers. When the water mist content in a certain layer of air flow changes, the intake air volume is adjusted by the intake air assembly 54 at the corresponding position. When the water mist content in a certain layer decreases, the intake air assembly 54 at the corresponding position increases the intake air volume to increase the water mist content. When the adjustment mechanism 5 simulates the usage environment of the product, the test module 2 detects the state of the product and outputs the detection result.

[0066] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed within the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A test device for a high-voltage isolation product with a state simulation function, characterized in that: The test device includes a detection box (1), a test module (2), a water tank (3), a gas-liquid separator (4) and an adjustment mechanism (5). The test module (2) is electrically connected to the high-voltage isolation product, and the test module (2) is used to detect the working state of the high-voltage isolation product. The water tank (3) is communicated with the detection box (1). The gas-liquid separator (4) is communicated with the adjustment mechanism (5). The adjustment mechanism (5) is fixedly connected to the detection box (1). The adjustment mechanism (5) is located inside the detection box (1), and the adjustment mechanism (5) is used to adjust the uniformity of the water mist in the detection box (1).

2. The test device for a high-voltage isolation product with a state simulation function according to claim 1, characterized in that: A working chamber (11) and atomizing nozzles (12) are provided inside the detection box (1). A water supply pipe (31) is provided on one side of the water tank (3). The water outlet of the water supply pipe (31) is communicated with the atomizing nozzles (12). The output ends of the atomizing nozzles (12) face the adjustment mechanism (5).

3. The test device for a high-voltage isolation product with a state simulation function according to claim 2, characterized in that: The adjustment mechanism (5) includes a sealing cover (51), a guide half-ring (52), a suction column (53), an air inlet assembly (54), guide vanes (55) and a connecting pipe (56). The side wall of the sealing cover (51) is clamped with the detection box (1). The bottom of the sealing cover (51) abuts against the guide half-ring (52). The guide half-ring (52) is fixedly connected to the detection box (1). There are two groups of the guide half-rings (52), and the two groups of the guide half-rings (52) are arranged staggeredly. The suction column (53) is fixedly connected to the detection box (1). The suction column (53) is located at the center of the two groups of guide half-rings (52). The air inlet assembly (54) is fixedly connected to the guide half-ring (52), and the air inlet assembly (54) is used to adjust the air flow rate entering the guide half-ring (52). The guide vanes (55) are fixedly connected to the inner wall of the guide half-ring (52). One end of the connecting pipe (56) is communicated with the outlet of the suction column (53), and the other end of the connecting pipe (56) is communicated with the gas-liquid separator (4).

4. The test device for a high-voltage isolation product with a state simulation function according to claim 3, characterized in that: A number of the guide vanes (55) are arranged on the inner wall of the guide half-ring (52), and a guide flow channel (551) is formed between two adjacent guide vanes (55).

5. The test equipment for a high-voltage isolation product with a state simulation function according to claim 4, characterized in that: An exhaust flow channel (531) and an air inlet flow channel (532) are provided inside the suction column (53). The exhaust flow channel (531) is communicated with the air inlet flow channel (532). The outlet of the exhaust flow channel (531) is communicated with the connecting pipe (56). An air suction fan (57) is provided in the exhaust flow channel (531). A number of groups of the air inlet flow channels (532) are arranged along the axial direction of the suction column (53), and the positions of the number of the air inlet flow channels (532) correspond to the positions of the guide flow channels (551) one by one.

6. The test device for a high-voltage isolation product with a state simulation function according to claim 5, characterized in that: The air inlet assembly (54) is located at the inlet of the guide flow channel (551). A number of groups of the air inlet assemblies (54) are arranged, and the positions of the number of the air inlet assemblies (54) correspond to the positions of the air inlet flow channels (532).

7. The test equipment for a high-voltage isolation product with a state simulation function according to claim 6, characterized in that: A detection component (58) is provided in the intake air flow channel (532). The detection component (58) is used to detect the water mist concentration passing through the intake air flow 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 intake air flow channel (532). The photoresistor (581) is externally connected to a detection power supply, and the detection power supply and the photoresistor (581) form a detection system.

8. The test device for a high-voltage isolation product with a state simulation function according to claim 7, characterized in that: The intake air component (54) includes a support frame (541), a sliding plate (542), a support spring (543), and an electromagnet (544). The support frame (541) is fixedly connected to the guide half ring (52). A chute (5411) is provided in the support frame (541). The sliding plate (542) is slidably connected to the chute (5411). One end of the support spring (543) is fixedly connected to the inner wall of the chute (5411), and the other end of the support spring (543) is fixedly connected to the sliding plate (542). The electromagnet (544) is fixedly connected to the inner wall of the chute (5411). The electromagnet (544) is electrically connected to the detection system. The electromagnet (544) is located at one end of the chute (5411) away from the sliding plate (542). An attracting block (545) is provided at one end of the sliding plate (542) close to the electromagnet (544). The attracting block (545) is made of iron material.

9. The test device for a high-voltage isolation product with a state simulation function according to claim 3, 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 communicated with the connecting pipe (56), and the drain port (43) is communicated with the water tank (3).

10. The testing method of a testing device for a high-voltage isolation product with a state simulation function according to claim 9, characterized in that: The test method is as follows: S1: Place the product to be tested into the detection box (1). S2: Snap the sealing cover (51) onto the detection box (1) and start the atomizing nozzle (12). S3: Adjust the uniformity of the water mist in the detection box (1) to a suitable level through the adjusting mechanism (5) to simulate a humid environment. S4: Detect the state of the product through the test module (2) and output the detection result.

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