System and method for testing multiple environmental factors of composite insulator and medium

Abstract

The invention relates to a test system and method for multiple environmental factors of a composite insulator and a medium. According to the invention, based on the environment control parameters corresponding to the target test environment of the composite insulator, through the control module in the test system for the multiple environmental factors of the composite insulator, a negative pressure module, a temperature and humidity module, a salt mist module, a raining module, a light module and a power supply module in the test system for controlling the multiple environmental factors of the composite insulator dynamically simulate various different environmental factors, and provide various climatic environments for the composite insulator in a low-pressure cabin of the test system to carry out related durability aging tests. The influence of various environmental factors on the durability aging test of the composite insulator can be comprehensively considered, and the accuracy and the test efficiency of the durability aging test of the composite insulator can be greatly improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of power system testing, and in particular to a testing system, method and medium for multiple environmental factors of a composite insulator. Background Art

[0002] As a key component of the power transmission system, composite insulators are widely used in various harsh outdoor environments. In long-term use, composite insulators will face complex and changeable climatic conditions such as high temperature, ultraviolet radiation, salt spray corrosion, humidity changes, and icing. These climatic conditions will cause the performance of composite insulators to gradually decline, shorten their service life, and increase the failure rate. Therefore, power system operators need to conduct durability and aging tests on composite insulators to ensure that they can maintain long-term stable performance in complex outdoor environments.

[0003] However, in the related art, the existing climate simulation systems used for durability aging tests of composite insulators can usually only simulate a single environmental factor, such as a high-temperature aging chamber, an ultraviolet radiation aging device or a salt spray corrosion test chamber, etc. They each simulate the aging effect of a single factor and cannot comprehensively and dynamically reproduce the impact of multiple composite environmental factors on the aging of composite insulators. Moreover, as the climatic conditions in different regions become increasingly complex and changeable, this single climate simulation system can no longer meet the current research and testing needs for the real durability aging process of composite insulators. Summary of the invention

[0004] In order to solve the above technical problems, the present disclosure provides a composite insulator multi-environmental factor testing system, method and medium.

[0005] A first aspect of the present disclosure provides a composite insulator multi-environmental factor testing system, the testing system comprising a low-pressure cabin, a control module, a negative pressure module, a temperature and humidity module, a salt spray module, a rain module, a lighting module, and a power supply module;

[0006] The low-voltage cabin is used to place composite insulators and provide a testing space for composite insulators;

[0007] The control module is used to obtain the target test environment of the composite insulator and the environmental control parameters corresponding to the target test environment, and send the first control parameter in the environmental control parameters to the negative pressure module, send the second control parameter in the environmental control parameters to the temperature and humidity module, send the third control parameter in the environmental control parameters to the salt spray module, send the fourth control parameter in the environmental control parameters to the rain module, send the fifth control parameter in the environmental control parameters to the lighting module, and send the sixth control parameter in the environmental control parameters to the power supply module;

[0008] The negative pressure module is used to adjust the air pressure in the low pressure cabin to a target air pressure corresponding to a target altitude in a target test environment based on a first control parameter;

[0009] The temperature and humidity module is used to adjust the temperature in the low-pressure cabin to the target temperature corresponding to the target test environment and the humidity in the low-pressure cabin to the target humidity corresponding to the target test environment based on the second control parameter;

[0010] The salt spray module is used to adjust the salt spray concentration in the low-pressure chamber to a target concentration corresponding to the target test environment based on the third control parameter;

[0011] The rain module is used to adjust the precipitation intensity in the low-pressure cabin to the target precipitation intensity corresponding to the target test environment based on the fourth control parameter;

[0012] The lighting module is used to adjust the light irradiance in the low-pressure chamber to the target light irradiance corresponding to the target test environment based on the fifth control parameter;

[0013] The power supply module is used to provide the composite insulator in the low-voltage compartment with a target voltage corresponding to the target test environment based on the sixth control parameter.

[0014] A second aspect of the present disclosure provides a test method for composite insulators with multiple environmental factors, which is applied to a control module in a test system for composite insulators with multiple environmental factors. The test system includes a low-pressure cabin, a control module, a negative pressure module, a temperature and humidity module, a salt spray module, a rain module, a lighting module, and a power supply module. Composite insulators are placed in the low-pressure cabin and a test space is provided for the composite insulators. The method includes:

[0015] The control module receives environmental control parameters corresponding to a target test environment of the composite insulator;

[0016] Sending a first control parameter among the environmental control parameters to the negative pressure module, so that the negative pressure module adjusts the air pressure in the low pressure cabin to a target air pressure corresponding to a target altitude in the target test environment based on the first control parameter;

[0017] Sending a second control parameter in the environmental control parameters to the temperature and humidity module, so that the temperature and humidity module adjusts the temperature in the low-pressure cabin to the target temperature corresponding to the target test environment and the humidity in the low-pressure cabin to the target humidity corresponding to the target test environment based on the second control parameter;

[0018] Sending a third control parameter in the environmental control parameters to the salt spray module, so that the salt spray module adjusts the salt spray concentration in the low-pressure cabin to a target concentration corresponding to the target test environment based on the third control parameter;

[0019] Sending a fourth control parameter in the environmental control parameters to the shower module, so that the shower module adjusts the precipitation intensity in the low-pressure cabin to the target precipitation intensity corresponding to the target test environment based on the fourth control parameter;

[0020] Sending a fifth control parameter in the environmental control parameters to the lighting module, so that the lighting module adjusts the light irradiance in the low-pressure chamber to the target light irradiance corresponding to the target test environment based on the fifth control parameter;

[0021] The sixth control parameter in the environmental control parameters is sent to the power supply module, so that the power supply module provides the composite insulator in the low-voltage compartment with a target voltage corresponding to the target test environment based on the sixth control parameter.

[0022] A third aspect of the present disclosure provides a computer-readable storage medium, in which a computer program is stored. When the computer program is executed by a processor, the method for testing multiple environmental factors of a composite insulator according to the second aspect can be implemented.

[0023] Compared with the prior art, the technical solution provided by the present invention has the following advantages:

[0024] The present invention is based on environmental control parameters corresponding to the target test environment of the composite insulator. Through the control module in the test system of multiple environmental factors of the composite insulator, the negative pressure module, temperature and humidity module, salt spray module, rain module, lighting module and power supply module in the test system of multiple environmental factors of the composite insulator are controlled to dynamically simulate multiple different environmental factors, so as to provide multiple climatic environments for the composite insulators in the low-pressure cabin of the test system to carry out relevant durability aging tests. The influence of multiple environmental factors on the durability aging test of the composite insulator can be comprehensively considered, and the accuracy and test efficiency of the durability aging test of the composite insulator can be greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0027] Figure 1 It is a structural schematic diagram of a composite insulator multi-environmental factor testing system provided by an embodiment of the present disclosure;

[0028] Figure 2It is a structural schematic diagram of a composite insulator multi-environmental factor testing system provided by an embodiment of the present disclosure;

[0029] Figure 3 is a structural schematic diagram of a temperature and humidity module provided in an embodiment of the present disclosure;

[0030] Figure 4 is a structural schematic diagram of a salt spray module provided in an embodiment of the present disclosure;

[0031] Figure 5 This is a schematic diagram of a composite insulator installation power supply position provided by an embodiment of the present disclosure;

[0032] Figure 6 It is a flow chart of a method for testing multiple environmental factors of a composite insulator provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0033] In order to more clearly understand the above-mentioned objectives, features and advantages of the present disclosure, the scheme of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0034] In the following description, many specific details are set forth to facilitate a full understanding of the present disclosure, but the present disclosure may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present disclosure, rather than all of the embodiments.

[0035] It should be understood that the various steps described in the method embodiments of the present disclosure may be performed in different orders and / or in parallel. In addition, the method embodiments may include additional steps and / or omit the steps shown. The scope of the present disclosure is not limited in this respect.

[0036] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0037] It should be noted that the modifications of "one" and "plurality" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0038] In order to better understand the inventive concept of the embodiments of the present disclosure, the technical solutions of the embodiments of the present disclosure are described below in conjunction with exemplary embodiments.

[0039] Figure 1 is a structural schematic diagram of a composite insulator multi-environmental factor testing system provided by an embodiment of the present disclosure, such as Figure 1 As shown, the test system may include a control module 110 , a low pressure chamber 120 , a negative pressure module 130 , a temperature and humidity module 140 , a salt spray module 150 , a rain module 160 , a lighting module 170 and a power supply module 180 .

[0040] Among them, the low-voltage cabin can be used to place composite insulators and provide a test space for the composite insulators;

[0041] The control module can be used to obtain environmental control parameters corresponding to the target test environment of the composite insulator, and the environmental control parameters may include a first control parameter corresponding to the negative pressure module, a second control parameter corresponding to the temperature and humidity module, a third control parameter corresponding to the salt spray module, a fourth control parameter corresponding to the rain module, a fifth control parameter corresponding to the lighting module, and a sixth control parameter corresponding to the power supply module. Then, the control module can be used to send the first control parameter in the environmental control parameters to the negative pressure module, send the second control parameter in the environmental control parameters to the temperature and humidity module, send the third control parameter in the environmental control parameters to the salt spray module, send the fourth control parameter in the environmental control parameters to the rain module, send the fifth control parameter in the environmental control parameters to the lighting module, and send the sixth control parameter in the environmental control parameters to the power supply module;

[0042] The negative pressure module may be used to adjust the air pressure in the low pressure cabin to a target air pressure corresponding to a target altitude in a target test environment based on a first control parameter;

[0043] The temperature and humidity module may be used to adjust the temperature in the low-pressure cabin to a target temperature corresponding to the target test environment and the humidity in the low-pressure cabin to a target humidity corresponding to the target test environment based on the second control parameter;

[0044] The salt spray module can be used to adjust the salt spray concentration in the low-pressure chamber to a target concentration corresponding to the target test environment based on the third control parameter. Specifically, the salt spray module can be used to inject salt water of the target concentration required by the third control parameter into the low-pressure chamber to adjust the salt spray concentration in the low-pressure chamber to the target concentration.

[0045] The shower module can be used to adjust the precipitation intensity in the low-pressure cabin to the target precipitation intensity corresponding to the target test environment based on the fourth control parameter. Specifically, the shower module can be used to inject water of the target precipitation intensity corresponding to the fourth control parameter into the low-pressure cabin to adjust the precipitation intensity in the low-pressure cabin to the target precipitation intensity.

[0046] The lighting module may be used to adjust the light irradiance in the low-pressure chamber to a target light irradiance corresponding to the target test environment based on the fifth control parameter;

[0047] The power supply module can be used to provide the composite insulator in the low-voltage compartment with a target voltage corresponding to the target test environment based on the sixth control parameter.

[0048] In some embodiments, the low-pressure cabin can be physically connected to the control module, negative pressure module, temperature and humidity module, salt spray module, rain module, lighting module and power supply module respectively.

[0049] The control module can be connected to the negative pressure module, temperature and humidity module, salt spray module, rain module, lighting module and power supply module respectively. Specifically, the control module can adopt the integrated control mode of programmable logic controller (PLC), support bus technology, and use standard Ethernet to communicate with each module. Therefore, the test system adopts a combination of decentralized control and centralized management. Each operating part of the system controls its automatic operation through the control module, and has expansion performance and automatic operation capability.

[0050] For example, Figure 2 is a structural schematic diagram of a composite insulator multi-environmental factor testing system provided by an embodiment of the present disclosure, such as Figure 2 As shown, the test system may include a control module 210, a low-pressure cabin 220, a negative pressure module 230, a temperature and humidity module 240, a salt spray module 250, a rain module 260, a lighting module 270, and a power supply module 280. The low-pressure cabin 220 may include a composite insulator placement area 221 and a drain 222. The low-pressure cabin is physically connected to the control module, the negative pressure module, the temperature and humidity module, the salt spray module, the rain module, the lighting module, and the power supply module, respectively, and the control module may be communicatively connected to the negative pressure module, the temperature and humidity module, the salt spray module, the rain module, the lighting module, and the power supply module, respectively.

[0051] Therefore, based on the environmental control parameters corresponding to the target test environment of the composite insulator, the control module in the test system of multiple environmental factors of the composite insulator can be used to control the negative pressure module, temperature and humidity module, salt spray module, rain module, lighting module and power supply module in the test system of multiple environmental factors of the composite insulator to dynamically simulate multiple different environmental factors, so as to provide multiple climatic environments for the composite insulators in the low-pressure cabin of the test system to carry out relevant durability aging tests, and comprehensively consider the influence of multiple environmental factors on the durability aging test of the composite insulator, which can greatly improve the accuracy and test efficiency of the durability aging test of the composite insulator.

[0052] Optionally, the above-mentioned low-pressure cabin may include a cabin, a cabin door, an observation window, a mounting hole and a drainage pipe. The cabin may be composed of a pressure-bearing steel plate and an insulation board. The pressure-bearing steel plate may be sealed and welded by vacuum welding technology. The material of the pressure-bearing steel plate may be SUS316 steel plate. The cabin wall thickness must be greater than or equal to a preset thickness, and the preset thickness may be set as required, for example, 14 mm. The insulation board is used to insulate the cabin. The material of the insulation board may be thick rock wool, for example, the thickness of the thick rock wool may be 100 mm. The thermal conductivity of the insulation material must be less than the preset thermal conductivity to meet the insulation function of the cabin. The preset thermal conductivity may be set as required, for example, the preset thermal conductivity may be 0.04 w / m2·k. The low-pressure cabin is provided with a drainage pipe, and the diameter of the drainage pipe must be greater than or equal to the preset diameter to ensure smooth drainage of the low-pressure cabin. The preset diameter may be set as required, for example, the preset diameter may be DN50, i.e., the nominal diameter is 50 mm.

[0053] Optionally, the negative pressure module can be used to adjust the air pressure in the low-pressure cabin, and the altitude corresponding to the air pressure is within a preset altitude range. The preset altitude range can be set as needed, for example, 0 to 5400m, which is not limited here. The rate of change of altitude can be within a preset rate range, for example, the preset rate range can be 0 to 6m / s. A pressure detection sensor with anti-corrosion treatment can be used to detect the air pressure in the low-pressure cabin, and the detection accuracy of the pressure detection sensor is less than or equal to the preset accuracy, for example, the preset accuracy can be ±0.25% FS. The negative pressure module can include a vacuum pump, and the displacement of the vacuum pump is less than or equal to the preset displacement, for example, the preset displacement can be 200L / s.

[0054] Optionally, the temperature and humidity module can be used to adjust the temperature and humidity in the low-pressure cabin. The temperature can be within a preset temperature range, for example, the preset temperature range can be -70°C to 90°C, the temperature control stability is less than or equal to the preset stability, for example, the preset stability can be ±1.5°C, the temperature uniformity is less than or equal to the preset uniformity, for example, the preset uniformity is less than or equal to ±3°C. The humidity can be within a preset humidity range, for example, the preset humidity range can be 50%RH to 100%RH (18°C to 60°C), the humidity control accuracy is less than or equal to the preset accuracy, for example, the preset accuracy can be ±5%. The temperature and humidity module may include an air-cooled direct expansion unit, and the air-cooled direct expansion unit may include a fan, an air supply duct, a return air duct, a cooling and dehumidification unit, a heating unit and a humidification unit, for example, Figure 3 It is a structural diagram of a temperature and humidity module. Figure 3 As shown, air is sent into the low-pressure cabin along the air supply duct 320 through the fan 310, and then the air enters the cooling and dehumidification unit 340 through the return air duct 330. The cooling and dehumidification unit 340 cools and dehumidifies the air in the low-pressure cabin, and then the air in the low-pressure cabin is heated by the heating unit 350. The air in the low-pressure cabin is then humidified by the humidification unit 360 to adjust the temperature and humidity of the air, and then the adjusted air is sent into the low-pressure cabin.

[0055] Optionally, the above-mentioned salt spray module can be used to adjust the salt spray concentration in the low-pressure cabin. The salt spray module may include a brine tank, a water pump, an air compressor, a solenoid valve and a nozzle. The brine tank may include a tank body, an electric heating pipe, and a water temperature sensor. Specifically, the brine in the brine tank may be heated by the electric heating pipe, and the specific heating temperature may be controlled based on the water temperature sensor in the brine tank. When the temperature of the brine reaches the requirement, the water pump and the air compressor are used to pressurize the brine, and the solenoid valve is used to control the brine, and the nozzle is used to spray the brine into the low-pressure cabin. For example, a SU11 air-water mixing nozzle may be used for salt spraying. During the salt spray test, the space where the composite insulator is located may be enclosed with a stainless steel plate, and the brine may be sprayed into the target space enclosed by the stainless steel plate to avoid the influence of salt spray on other equipment in the low-pressure cabin.

[0056] For example, Figure 4 is a schematic diagram of the structure of a salt spray module, such as Figure 4 As shown, the salt spray module includes a salt water tank 410, a water pump 420, an air compressor 430, a solenoid valve 440 and a nozzle 450, the number of the solenoid valves and the number of the nozzles are 6 respectively, and the solenoid valves and the nozzles are installed on the inner wall of the low-pressure cabin.

[0057] Optionally, the shower module can be used to adjust the precipitation intensity in the low-pressure cabin. The shower module can include a water tank, a water pump, an air compressor, an air pressure regulator, a water pressure regulator and a nozzle. Specifically, the air pressure parameters of the air compressor are adjusted by the air pressure regulator, and the water pressure parameters of the water pump are adjusted by the water pressure regulator. The water in the water tank is pressurized by the water pump and the air compressor, and is controlled by the solenoid valve, and the nozzle sprays the water in the water tank into the low-pressure cabin.

[0058] Optionally, the above-mentioned lighting module can be used to adjust the light irradiance in the low-pressure cabin. The above-mentioned lighting module can include an ultraviolet lamp and a xenon arc lamp. The ultraviolet lamp can be used to simulate the light irradiance of ultraviolet light in natural sunlight. The xenon arc lamp can be used to simulate the light irradiance corresponding to the full sunlight spectrum. For example, the ultraviolet lamp can be a UV-A340 ultraviolet lamp tube, which can simulate the situation after sunlight exposure at noon in summer. The lamp tube power is 40W, and the irradiance range is ≤80w / m2; the xenon arc lamp can be an x-1800 lamp with a power of 1800W and an irradiance range of 0~1kW / m2.

[0059] For example, the lighting module may include A ultraviolet lamps and B xenon arc lamps, and the ultraviolet lamps and xenon arc lamps may be located at the bottom or top of the low-pressure chamber.

[0060] Optionally, the power supply module can be used to supply power to the composite insulator in the low-pressure cabin. The power supply module may include a power supply, a power supply line and a wall bushing, the wall bushing is used to penetrate the power supply line from the outside of the low-pressure cabin into the inside of the low-pressure cabin, and the power supply is connected to the composite insulator through the power supply line. For example, the power supply module can withstand 500kV AC, ±600kV DC, and 2400kV impulse electricity. An anti-sway bracket can be installed at the position where the pipeline passes through the low-pressure cabin retaining wall to prevent the power supply module from shaking.

[0061] For example, Figure 5 This is a schematic diagram of the power supply position for installing a composite insulator, such as Figure 5 As shown, 510 is a composite insulator, 520 is a wall bushing in the power supply module, 530 is a power supply line, and 540 is a power supply. The wall bushing inserts the power supply line from the outside of the low-pressure cabin into the inside of the low-pressure cabin, and the power supply is connected to the composite insulator through the power supply line.

[0062] Optionally, the control module further includes a display screen. The user can perform environmental parameter setting operations on the composite insulator on the display screen of the control module, for example, the user can perform selection operations and input operations on the target test environment and the environmental control parameters corresponding to the target test environment. The control module can respond to the user's environmental setting operations on the composite insulator on the display screen to obtain the target test environment of the composite insulator and the environmental control parameters corresponding to the target test environment. Therefore, the control module adopts a local touch screen control mode, and the data is centrally managed on the touch screen. The target test environment and the environmental control parameters corresponding to the target test environment can be set with one click, which can improve the convenience of the test operation.

[0063] In some embodiments, the test system may further include a rotating hoisting module, which may be used to hoist the composite insulator in the low-voltage cabin. For example, the rotating hoisting module may be composed of an electric hoist, and the rotation speed may be 1-4 rpm. Thus, the flexibility of the composite insulator test operation may be improved.

[0064] For example, Figure 5 As shown, the rotating hoisting module 550 is located on the top of the low-voltage cabin and is used to hoist the composite insulator 510 in the low-voltage cabin.

[0065] Optionally, the rotary hoisting module may be connected to the control module in the test system, and the control module may be used to control the rotary hoisting module to adjust the hoisting position of the composite insulator based on the user's position setting operation of the composite insulator. For example, the position setting operation may be a selection operation or an input operation of the composite insulator position.

[0066] In other embodiments, the test system may further include a lighting module, which may be used to illuminate the composite insulator under the target test environment. For example, a plurality of low-temperature resistant energy-saving cold storage lamps may be arranged in the low-pressure cabin as lighting modules to meet the lighting requirements of the entire range from high temperature conditions to low temperature conditions, and the illumination of the low-pressure cabin may be greater than or equal to 300LUX.

[0067] Optionally, the lighting module may be in communication with the control module, and the control module may be used to control the lighting range and brightness of the composite insulator by the lighting module based on the user's lighting setting operation on the composite insulator. For example, the lighting setting operation may be a selection operation, an input operation, etc. on the lighting range and brightness of the composite insulator.

[0068] Optionally, the target test environment may include at least one of a first climate environment, a second climate environment, a third climate environment, a fourth climate environment, a fifth climate environment, and a sixth climate environment.

[0069] The first climate environment can be a high temperature, strong radiation, and large temperature difference environment. For example, in a high temperature, strong radiation, and large temperature difference environment, the high temperature, strong radiation, and lighting environment are simulated during the day, and the cooling and humidification environment is simulated at night. The corresponding environmental control parameters may include continuous power supply, a target temperature range of room temperature to 90°C during the day with an accuracy of ±2°C, and a target light irradiance intensity of 0 to 1kW / m 2 , the adjustment step is 0.1W / m 2 , high temperature and strong radiation for 6 to 18 hours and 2 hours of standing still; the target temperature range at night is 0℃ to 20℃, with an accuracy of ±2℃, the target humidity is set at 50% to 95%, and the humidity adjustment accuracy is ±3%, the cooling duration is 4 to 6 hours and 2 hours of standing still, alternating between day and night.

[0070] The second climate environment can be a high-altitude, strong ultraviolet, and large temperature difference environment. For example, in a high-altitude, strong ultraviolet, and large temperature difference environment, the high-altitude environment is simulated all day, the high-temperature and strong ultraviolet environment is simulated during the day, and the low-temperature and weak ultraviolet environment is simulated at night. The corresponding environmental control parameters may include continuous power supply, a target altitude range of 3000 to 5400 meters, a target temperature range of room temperature to 90°C during the day, an accuracy of ±2°C, a target ultraviolet light irradiance of ≤80W / m2, a duration of 6 to 18 hours, and 2 hours of static rest; the target temperature at night drops to 0 to 20°C, and the temperature duration is 4 to 6 hours and 2 hours of static rest; alternately.

[0071] The third climate environment can be a high temperature, high humidity and salt spray corrosion environment. For example, in a high temperature, high humidity and salt spray corrosion environment, the corresponding environmental control parameters may include continuous power supply, a target temperature range of room temperature to 55°C, an adjustment accuracy of ±2°C, a target humidity setting of 90% to 98%, a humidity adjustment accuracy of ±2%, and a target salt spray concentration of 10±0.5kg / m NaCl. 3 , the saline flow rate can be 0.4±0.1kg / m 3 h, with a duration of 8 to 10 hours of high temperature, 2 hours of drying, 8 to 10 hours of spraying and 2 hours of drying in a cycle.

[0072] The fourth climate environment may be an extremely cold and severe freezing environment. For example, in an extremely cold and severe freezing environment, the corresponding environmental control parameters may include continuous power supply, a target temperature range of -70°C to -10°C, an adjustment accuracy of ±2°C, a target rainfall intensity of 2 to 5 mm / h, a rainfall duration of 1 to 2 hours, and then a 2-hour standstill, alternating between the two.

[0073] The fifth climate environment is a high temperature and high humidity environment in summer. For example, in a high temperature and high humidity environment in summer, the corresponding environmental control parameters may include continuous power supply, a target temperature range of room temperature to 55°C, a target humidity control of 90% to 95%, and a duration of high temperature and high humidity of 8 to 18 hours, rainfall of 2 to 4 hours, and 2 hours of static rest, alternating between the two.

[0074] The sixth climate environment may be a winter icing environment. For example, in a winter icing environment, the corresponding environmental control parameters may include a target temperature range of -10°C to -20°C, a target rainfall intensity of 2 to 5 mm / hour, an icing duration of 4 to 6 hours and 2 hours of standing, alternating.

[0075] Therefore, the test system can simulate various climatic environments such as high temperature, strong radiation, large temperature difference environment, high altitude, strong ultraviolet light, large temperature difference environment, high temperature, high humidity and salt spray corrosion environment, extreme cold and severe freezing environment, summer high temperature and high humidity environment and winter icing environment to conduct relevant durability aging tests on composite insulators. It can comprehensively consider the impact of various environmental factors on the durability aging test of composite insulators, greatly improving the accuracy and test efficiency of the durability aging test of composite insulators.

[0076] Figure 6 A flow chart of a composite insulator multi-environmental factor testing method provided in an embodiment of the present disclosure. The method can be applied to a control module in the composite insulator multi-environmental factor testing system. The method can be executed by the control module. The testing system may include a low-pressure cabin, a control module, a negative pressure module, a temperature and humidity module, a salt spray module, a rain module, a lighting module, and a power supply module. A composite insulator is placed in the low-pressure cabin and a testing space is provided for the composite insulator. Figure 6 As shown in the figure, the test methods for composite insulators with multiple environmental factors include:

[0077] Step 610: Receive environmental control parameters corresponding to the target test environment of the composite insulator.

[0078] Step 620: Send the first control parameter in the environmental control parameters to the negative pressure module, so that the negative pressure module adjusts the air pressure in the low pressure cabin to the target air pressure corresponding to the target altitude in the target test environment based on the first control parameter.

[0079] Step 630: Send the second control parameter in the environmental control parameters to the temperature and humidity module, so that the temperature and humidity module adjusts the temperature in the low-pressure cabin to the target temperature corresponding to the target test environment and adjusts the humidity in the low-pressure cabin to the target humidity corresponding to the target test environment based on the second control parameter.

[0080] Step 640: Send the third control parameter in the environmental control parameters to the salt spray module, so that the salt spray module adjusts the salt spray concentration in the low-pressure chamber to the target concentration corresponding to the target test environment based on the third control parameter.

[0081] Step 650: Send the fourth control parameter in the environmental control parameters to the shower module, so that the shower module adjusts the precipitation intensity in the low-pressure cabin to the target precipitation intensity corresponding to the target test environment based on the fourth control parameter.

[0082] Step 660: Send the fifth control parameter in the environmental control parameters to the lighting module, so that the lighting module adjusts the light irradiance in the low-pressure chamber to the target light irradiance corresponding to the target test environment based on the fifth control parameter.

[0083] Step 670: Send the sixth control parameter in the environmental control parameters to the power supply module, so that the power supply module provides the composite insulator in the low-voltage compartment with a target voltage corresponding to the target test environment based on the sixth control parameter.

[0084] Therefore, based on the environmental control parameters corresponding to the target test environment of the composite insulator, the control module in the test system of multiple environmental factors of the composite insulator can be used to control the negative pressure module, temperature and humidity module, salt spray module, rain module, lighting module and power supply module in the test system of multiple environmental factors of the composite insulator to dynamically simulate multiple different environmental factors, so as to provide multiple climatic environments for the composite insulators in the low-pressure cabin of the test system to carry out relevant durability aging tests, and comprehensively consider the influence of multiple environmental factors on the durability aging test of the composite insulator, which can greatly improve the accuracy and test efficiency of the durability aging test of the composite insulator.

[0085] Optionally, the control module may send a third control parameter in the environmental control parameters to the salt spray module, so that the salt spray module injects salt water of the target concentration required by the third control parameter into the low-pressure chamber to adjust the salt spray concentration in the low-pressure chamber to the target concentration.

[0086] Optionally, the control module can send a fourth control parameter in the environmental control parameters to the shower module, so that the shower module sprays water of the target precipitation intensity corresponding to the fourth control parameter into the low-pressure cabin to adjust the precipitation intensity in the low-pressure cabin to the target precipitation intensity.

[0087] Optionally, the control module further includes a display screen, and the control module can obtain a target test environment of the composite insulator and environmental control parameters corresponding to the target test environment in response to a user's environmental setting operation on the composite insulator on the display screen.

[0088] Optionally, the test system also includes a rotating hoisting module, which is used to hoist the composite insulator in the low-voltage cabin; the rotating hoisting module is communicatively connected to the control module, and the control module can control the rotating hoisting module to adjust the hoisting position of the composite insulator based on the user's position setting operation on the composite insulator.

[0089] Optionally, the test system also includes a lighting module, which can be used to illuminate the composite insulators in the low-voltage cabin under the target test environment; the lighting module can be communicated with the control module, and the control module can control the lighting range and brightness of the composite insulators based on the user's lighting setting operation on the composite insulator.

[0090] An embodiment of the present disclosure provides a computer-readable storage medium, in which a computer program is stored. When the computer program is executed by a processor, the method of any of the above embodiments can be implemented. The execution method and beneficial effects are similar and will not be repeated here.

[0091] The above-mentioned computer readable storage medium can adopt any combination of one or more readable media. The readable medium can be a readable signal medium or a readable storage medium. The readable storage medium can include, for example, but is not limited to, a system, device or device of electricity, magnetism, light, electromagnetic, infrared, or semiconductor, or any combination of the above. More specific examples (non-exhaustive list) of readable storage media include: an electrical connection with one or more wires, a portable disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above.

[0092] The computer program may be written in any combination of one or more programming languages ​​to write program codes for performing the operations of the disclosed embodiments, including object-oriented programming languages ​​such as Java, C++, etc., and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user's computer device, partially on the user's device, as a separate software package, partially on the user's computer device and partially on a remote computer device, or entirely on a remote computer device or server.

[0093] The above description is only a preferred embodiment of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of disclosure involved in the present disclosure is not limited to the technical solutions formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above disclosed concept. For example, the above features are replaced with the technical features with similar functions disclosed in the present disclosure (but not limited to) by each other to form a technical solution.

[0094] In addition, although each operation is described in a specific order, this should not be understood as requiring these operations to be performed in the specific order shown or in a sequential order. Under certain circumstances, multitasking and parallel processing may be advantageous. Similarly, although some specific implementation details are included in the above discussion, these should not be interpreted as limiting the scope of the present disclosure. Some features described in the context of a separate embodiment can also be implemented in a single embodiment in combination. On the contrary, the various features described in the context of a single embodiment can also be implemented in multiple embodiments individually or in any suitable sub-combination mode.

[0095] The above description is only a specific embodiment of the present disclosure, so that those skilled in the art can understand or implement the present disclosure. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to the embodiments described herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A composite insulator multi-environmental factor testing system, characterized in that: The test system includes a low-pressure cabin, a control module, a negative pressure module, a temperature and humidity module, a salt spray module, a rain module, a lighting module and a power supply module; The low-voltage cabin is used to place the composite insulator and provide a testing space for the composite insulator; The control module is used to obtain the target test environment of the composite insulator and the environmental control parameters corresponding to the target test environment, and send the first control parameter of the environmental control parameters to the negative pressure module, send the second control parameter of the environmental control parameters to the temperature and humidity module, send the third control parameter of the environmental control parameters to the salt spray module, send the fourth control parameter of the environmental control parameters to the rain module, send the fifth control parameter of the environmental control parameters to the lighting module, and send the sixth control parameter of the environmental control parameters to the power supply module; The negative pressure module is used to adjust the air pressure in the low pressure cabin to a target air pressure corresponding to a target altitude in the target test environment based on the first control parameter; The temperature and humidity module is used to adjust the temperature in the low-pressure cabin to the target temperature corresponding to the target test environment and the humidity in the low-pressure cabin to the target humidity corresponding to the target test environment based on the second control parameter; The salt spray module is used to adjust the salt spray concentration in the low-pressure chamber to a target concentration corresponding to the target test environment based on the third control parameter; The rain module is used to adjust the precipitation intensity in the low-pressure cabin to the target precipitation intensity corresponding to the target test environment based on the fourth control parameter; The lighting module is used to adjust the light irradiance in the low-pressure chamber to the target light irradiance corresponding to the target test environment based on the fifth control parameter; The power supply module is used to provide the composite insulator in the low-voltage compartment with a target voltage corresponding to the target test environment based on the sixth control parameter.

2. The test system according to claim 1, characterized in that: The salt spray module is used to inject salt water of the target concentration required by the third control parameter into the low-pressure cabin to adjust the salt spray concentration in the low-pressure cabin to the target concentration; The shower module is used to inject a water flow of a target precipitation intensity corresponding to the fourth control parameter into the low-pressure cabin to adjust the precipitation intensity in the low-pressure cabin to the target precipitation intensity.

3. The test system according to claim 1, characterized in that: The low-pressure cabin is physically connected to the control module, the negative pressure module, the temperature and humidity module, the salt spray module, the rain module, the lighting module and the power supply module respectively; The control module is respectively connected to the negative pressure module, the temperature and humidity module, the salt spray module, the rain module, the lighting module and the power supply module for communication.

4. The test system according to claim 1, characterized in that: The control module also includes a display screen; The control module is used for acquiring a target test environment of the composite insulator and environmental control parameters corresponding to the target test environment in response to a user's operation on setting the environment of the composite insulator on the display screen.

5. The test system according to claim 1, characterized in that: The test system further comprises a rotating hoisting module, and the rotating hoisting module is used to hoist the composite insulator in the low-voltage cabin; The rotary hoisting module is in communication connection with the control module, and the control module is used for controlling the rotary hoisting module to adjust the hoisting position of the composite insulator based on the user's position setting operation on the composite insulator.

6. The test system according to claim 1, characterized in that: The test system further comprises a lighting module, which is used to illuminate the composite insulator in the low-voltage compartment under a target test environment; The lighting module is in communication connection with the control module, and the control module is used for controlling the lighting range and brightness of the composite insulator by the lighting module based on the user's lighting setting operation on the composite insulator.

7. The test system according to claim 1, characterized in that: The low-pressure cabin includes a cabin body, a cabin door, an observation window, a mounting hole and a drainage pipe, and the cabin body is composed of a pressure-bearing steel plate and a heat-insulating plate; The negative pressure module is used to adjust the air pressure in the low pressure cabin, the altitude corresponding to the air pressure is within a preset altitude range, and the negative pressure module includes a vacuum pump; The temperature and humidity module is used to adjust the temperature and humidity in the low-pressure cabin, and the temperature and humidity module includes an air-cooled direct expansion unit, and the air-cooled direct expansion unit includes a fan, an air supply pipeline, a return air pipeline, a cooling and dehumidification unit, a heating unit and a humidification unit; The salt spray module is used to adjust the salt spray concentration in the low-pressure cabin, and the salt spray module includes a salt water tank, a water pump, an air compressor, a solenoid valve and a nozzle, and the salt water tank includes a tank body, an electric heating pipe, and a water temperature sensor; The shower module is used to adjust the precipitation intensity in the low-pressure cabin, and the shower module includes a water tank, a water pump, an air compressor, an air pressure regulator, a water pressure regulator, a solenoid valve and a sprinkler; The lighting module is used to adjust the light irradiance in the low-pressure cabin, and the lighting module includes an ultraviolet lamp and a xenon arc lamp. The ultraviolet lamp is used to simulate the light irradiance of ultraviolet light in natural sunlight, and the xenon arc lamp is used to simulate the light irradiance corresponding to the full sunlight spectrum; The power supply module is used to supply power to the composite insulator in the low-voltage cabin. The power supply module includes a power supply, a power supply line and a wall bushing. The wall bushing is used to penetrate the power supply line from the outside of the low-voltage cabin into the inside of the low-voltage cabin. The power supply is connected to the composite insulator through the power supply line.

8. The test system according to any one of claims 1 to 7, characterized in that: The target test environment includes at least one of a first climate environment, a second climate environment, a third climate environment, a fourth climate environment, a fifth climate environment, and a sixth climate environment; The first climate environment is a high temperature, strong radiation, and large temperature difference environment; The second climate environment is a high altitude environment with strong ultraviolet rays and large temperature differences; The third climate environment is a high temperature, high humidity and salt spray corrosion environment; The fourth climate environment is an extremely cold and severe freezing environment; The fifth climate environment is a high temperature and high humidity environment in summer; The sixth climate environment is an ice-covered environment in winter.

9. A method for testing multiple environmental factors of composite insulators, characterized in that: A control module applied to a test system for composite insulators with multiple environmental factors, the test system comprising a low-pressure cabin, a control module, a negative pressure module, a temperature and humidity module, a salt spray module, a rain module, a lighting module and a power supply module, a composite insulator is placed in the low-pressure cabin and a test space is provided for the composite insulator, and the method comprises: The control module receives environmental control parameters corresponding to a target test environment of the composite insulator; Sending a first control parameter among the environmental control parameters to the negative pressure module, so that the negative pressure module adjusts the air pressure in the low pressure cabin to a target air pressure corresponding to a target altitude in the target test environment based on the first control parameter; Sending a second control parameter in the environmental control parameters to the temperature and humidity module, so that the temperature and humidity module adjusts the temperature in the low-pressure cabin to the target temperature corresponding to the target test environment and adjusts the humidity in the low-pressure cabin to the target humidity corresponding to the target test environment based on the second control parameter; Sending a third control parameter in the environmental control parameters to the salt spray module, so that the salt spray module adjusts the salt spray concentration in the low-pressure cabin to a target concentration corresponding to the target test environment based on the third control parameter; Sending a fourth control parameter in the environmental control parameters to the shower module, so that the shower module adjusts the precipitation intensity in the low-pressure cabin to the target precipitation intensity corresponding to the target test environment based on the fourth control parameter; Sending a fifth control parameter in the environmental control parameters to the lighting module, so that the lighting module adjusts the light irradiance in the low-pressure chamber to the target light irradiance corresponding to the target test environment based on the fifth control parameter; The sixth control parameter in the environmental control parameters is sent to the power supply module, so that the power supply module provides the composite insulator in the low-voltage compartment with a target voltage corresponding to the target test environment based on the sixth control parameter.

10. A computer-readable storage medium, characterized in that: The storage medium stores a computer program, and when the computer program is executed by a processor, the method for testing multiple environmental factors of a composite insulator as claimed in claim 9 is implemented.

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