Ice accretion device and test method suitable for low temperature environments

Abstract

The present application relates to a kind of ice accretion and freezing rain device and test method suitable for low temperature environment, by the low temperature condition of being set by test equipment in environmental test chamber, according to the surface temperature of being tested equipment, the temperature of environmental test chamber is adjusted, so that the acceleration test of being tested equipment under low temperature can be carried out, and the real low temperature environment is simulated for being tested equipment;By setting mobile platform and spraying rack, being tested equipment can be uniformly sprayed and overall evenly iced in the process of experiment;By setting spraying device, water mist can be sprayed to being tested equipment, and the real freezing rain, ice accretion and rain environment are simulated;By setting axial fan, water mist sprayed by spraying device can be hit on the surface of being tested equipment, and the splashing icing and snow blowing environment are simulated;By setting measuring equipment, the environmental conditions of test area, the surface temperature of being tested equipment and ice accretion thickness can be measured, so whether the required environmental conditions of being tested equipment low temperature test are reached is judged.

Description

TECHNICAL FIELD

[0001] The present application relates to a device and a test method of equipment environment simulation test technology at low temperature, in particular to a simulation device and a test method of icing rain environment, and belongs to the technical field of test environment simulation. BACKGROUND

[0002] With the development of society and the progress of science and technology, people have higher requirements for the environmental reliability of various equipment. Environmental simulation technology is a comprehensive engineering technology to ensure the reliable operation of equipment and meet the performance requirements.

[0003] Two-stage regional resources are abundant, and the strategic value of polar equipment environmental test is increasingly important. In the polar environment, the serving equipment not only suffers from low temperature, but also is affected by icing, wind blowing and other factors, and failure problems occur frequently, so environmental test must be paid attention to to ensure the reliability of the equipment. Therefore, it is necessary to simulate the real icing rain environment for testing before the equipment is actually served.

[0004] The common spray device for simulating icing rain can meet part of the test content, but due to the freezing of water at low temperature, the nozzle is blocked, and most of the devices cannot be used below a certain temperature, and the volume of the equipment is indefinite, the rack is fixed, which leads to uneven raindrop and icing coverage area, different icing thickness, and causes test result deviation.

[0005] Therefore, it is necessary to provide an icing rain test device which can be used at a low temperature below-50 DEG C and can be adjusted according to the tested equipment to make the surface icing uniform SUMMARY

[0006] In view of the above problems, the present application provides an icing rain device and test method suitable for low temperature environment, which can not only perform icing test in a low temperature environment below-50 DEG C, but also adjust the test area space size by moving and disassembling, control the icing uniformity, and meet the test requirements.

[0007] To achieve the above purpose, the technical scheme of the present application is: an icing rain device suitable for low temperature environment, comprising: an environmental test box, a moving platform, a spray rack, a spray device, an axial flow fan, a control console, a water pipeline, a measuring equipment,

[0008] The environmental test box can adjust and control the internal temperature to simulate a real low temperature use environment for the tested equipment;

[0009] The moving platform is placed in the environmental test box according to the test requirements, and is used for carrying the tested equipment to facilitate the rotation and movement of the tested equipment;

[0010] A spraying platform is used to fix the nozzles of the spraying device and can be disassembled, installed with pulleys and moved so that the test equipment can change the position of being sprayed and iced during the experiment, thus enabling the test equipment to be sprayed and iced evenly in all directions.

[0011] A spraying device is used to spray water mist to the test equipment to simulate the real freezing rain, icing and raining environment.

[0012] An axial flow fan is installed in front of the spraying platform and faces the test equipment, and the bottom is installed with wheels to be movable, and is used to simulate the blowing environment and splashing icing scene in the polar region.

[0013] A control console is installed outside the environmental test chamber and is used to control the water flow, spray size, water temperature and air pressure of the spraying device.

[0014] A water pipeline includes a purified water pipeline, a heated water pipeline, a nozzle water supply pipeline and a return pipeline, and is used to provide water source for the spraying device.

[0015] An air pipeline includes a compressed air pipeline, a nozzle air supply pipeline and a flushing air pipeline, and is used to provide air source for the spraying device.

[0016] A measuring device is placed inside the environmental test chamber and is used to measure the parameters of temperature, wind speed and icing thickness during and after the icing test.

[0017] Further, the moving platform is provided with a water collecting tray, the water collecting tray includes a plurality of holes, and the water collecting tray and the moving platform are detachably combined.

[0018] Further, the spraying platform is installed with a wind speed and direction sensor and a temperature sensor; the wind speed and direction sensor is installed on the spraying platform and is used to monitor the parameters of wind speed and direction in the spraying test area; and the temperature sensor is installed on the spraying platform and around the test equipment and is used to monitor the temperature parameters in the spraying test area.

[0019] Further, the spraying platform further includes a movable support, a fixed support and a detachable wind shield, the detachable wind shield is installed on the spraying platform to avoid the influence of the wind speed of the environmental test chamber during the snow accumulation test of the spraying device; the movable support can adjust the test range of the spraying device by moving horizontally and vertically within the space range of the spraying platform; and the fixed support is used to install the nozzles of the spraying device and can move within the space range of the spraying platform and can be installed and disassembled according to the number of test requirements.

[0020] Further, the pipelines of the water pipeline and the air pipeline include a heat preservation sleeve, which is used to heat the medium in the pipeline at low temperature to avoid ice blockage of the pipeline.

[0021] Further, the device further comprises an oil-water separator, a water purifier, and a heating water tank. The oil-water separator is arranged on the water pipeline and used to separate the oil possibly carried by the water after being treated by the control console. The water purifier is arranged at the water inlet end of the water pipeline and used to purify the water source to avoid the blockage of the spray head. The heating water tank is arranged on the water pipeline and used to heat the water source to avoid the freezing of the water pipeline.

[0022] Further, the control console further comprises a blowing pipeline arrangement for blowing and processing the water pipeline and the air pipeline by the air compressor of the air pipeline to eliminate the water droplets in the pipeline.

[0023] Further, the control console further comprises a flow meter and a pressure sensor. The flow meter is used to measure the water supply flow of the spraying device and control the spraying intensity of the spray head. The pressure sensor is used to measure the air supply pressure of the spraying system and control the atomization intensity of the spray head.

[0024] Further, the device further comprises a data acquisition system, a control system, and a camera. The camera is used to record the test process of the test equipment, integrate and analyze the data collected by the measuring equipment, control the switch of the equipment, and monitor the test process in real time.

[0025] A method for testing icing and freezing rain suitable for low-temperature environment, which adopts an icing and freezing rain device suitable for low-temperature environment. The method comprises the following steps:

[0026] Step S1: determining the number of spray heads of the spraying device according to the volume of the test equipment, adjusting the movable support of the spraying rack, and fixing the position of the spray heads of the spraying device.

[0027] Step S2: removing the residual water in the water pipeline and the air pipeline according to the control console before the test.

[0028] Step S3: setting the test temperature of the environmental test box and obtaining the test area temperature according to the temperature sensor of the test area of the spraying rack.

[0029] Step S4: collecting the surface temperature of the test equipment and adjusting the set temperature of the environmental test box according to the test temperature.

[0030] Step S5: adjusting the water supply temperature and the air speed of the spraying device according to the environmental conditions of the test equipment through the control console.

[0031] Step S6: obtaining the corresponding spraying intensity and icing thickness of the test equipment and adjusting the water spraying amount and the spraying water mist intensity of the spraying device according to the spraying intensity and the icing thickness.

[0032] Step S7, the temperature of the test area inside the environmental test chamber and the surface temperature of the test equipment are acquired, when the surface temperature of the test equipment reaches the preset temperature, and the water spraying amount and the spray size of the spraying device reach the preset values, the test equipment is run, the current running working state of the test equipment is acquired, when the current working performance of the test equipment reaches the requirement of the actual working performance demand, it is determined that the performance of the test equipment is up to the standard, when the current working performance of the test equipment cannot reach the requirement of the actual working performance demand, it is determined that the performance of the test equipment is not up to the standard.

[0033] Step S8, the temperature of the test area inside the environmental test chamber and the surface temperature of the test equipment are acquired, when the surface temperature of the test equipment reaches the preset temperature, and the ice thickness of the spraying device reaches the preset value, the test equipment is run, the current running working state of the test equipment is acquired, when the current working performance of the test equipment reaches the requirement of the actual working performance demand, it is determined that the performance of the test equipment is up to the standard, when the current working performance of the test equipment cannot reach the requirement of the actual working performance demand, it is determined that the performance of the test equipment is not up to the standard.

[0034] Step S9, the temperature of the test area inside the environmental test chamber and the surface temperature of the test equipment are acquired, when the surface temperature of the test equipment reaches the preset temperature, and the ice thickness of the spraying device reaches the preset value, the test equipment is run after being deiced, the current running working state of the test equipment is acquired, when the current working performance of the test equipment reaches the requirement of the actual working performance demand, it is determined that the performance of the test equipment is up to the standard, when the current working performance of the test equipment cannot reach the requirement of the actual working performance demand, it is determined that the performance of the test equipment is not up to the standard.

[0035] The beneficial effects of the present application are:

[0036] The application provides a low-temperature ice and rain test device and test method, which can simulate a real low-temperature environment for a test equipment by setting a low-temperature condition of the test equipment in an environmental test chamber, adjusting the temperature of the environmental test chamber according to the surface temperature of the test equipment, and accelerating the test of the test equipment. The test equipment can be uniformly sprayed and fully iced by setting a moving platform and a movable support of a spraying rack. In the low-temperature environment, the water source is purified by setting a water purifier to avoid the clogging of the spray head, and the water source is heated by setting a heater to avoid the freezing of the water pipeline. The residual moisture in the pipeline is removed by setting a blowing pipeline, and the pipeline is protected by setting an insulation layer to prevent the pipeline from cracking. The test equipment can be sprayed with water mist by setting a spraying device to simulate a real icing rain and ice environment. The water mist sprayed by the spraying device can hit the surface of the test equipment to simulate a splashing icing and snow blowing environment. The environmental conditions of the test area, the surface temperature of the test equipment and the ice thickness can be measured by setting a measuring device and a monitoring system, so that whether the required environmental conditions of the test equipment in the low-temperature test are reached can be judged. Therefore, the test equipment can be tested by simulating a real environmental test condition before the actual service, and the reliability of the test equipment is improved.

[0037] The device and test method can not only perform ice test in a low-temperature environment below-50 DEG C, but also can adjust the size of the test area space by moving and disassembling, control the icing uniformity, and meet the test requirements. DETAILED DESCRIPTION

[0038] Figure 1 FIG. 1 is a structural schematic diagram of a low-temperature ice and rain test device in the embodiment of the application;

[0039] Figure 2 FIG. 2 is a schematic diagram of an environmental test chamber of the low-temperature ice and rain test device in the embodiment of the application;

[0040] Figure 3 FIG. 3 is a flowchart of a low-temperature ice and rain test method in the embodiment of the application;

[0041] The reference signs are explained as follows: 101, control console; 102, heated water tank; 103, water purifier; 104, air compressor; 105, spray head; 106, spraying rack; 107, axial flow fan; 108, water return pump; 109, flow meter; 110, pressure sensor; 111, wind speed and direction sensor; 112, test equipment; 201, water pipeline; 202, gas pipeline; 203, control line; 204, municipal pipe network interface; 301, refrigeration system; 302, control system; 303, air outlet; 304, air return; 305, camera; 306, lighting system; 307, reserved hole; 308, moving platform; and 309, environmental test chamber. Detailed Implementation

[0042] To facilitate understanding of this application, a detailed description will be provided below with reference to the accompanying drawings, so that the advantages and features of the invention can be more readily understood by those skilled in the art, thereby providing a clearer and more explicit definition of the scope of protection of the invention. Embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this application more thorough and complete.

[0043] As described in the background section, existing ice accumulation and freezing rain testing devices are prone to water freezing at low temperatures, causing nozzle blockage. Most devices become unusable below a certain temperature, and the inconsistent equipment size and fixed platform lead to uneven raindrop and ice coverage, varying ice thickness, and resulting in biased test results. The inventors have discovered that this problem arises because existing testing devices lack anti-freezing measures for low temperatures, or simple anti-freezing measures are ineffective. This renders the testing device unusable at low temperatures, and the fact that the device only sprays water mist from above the test equipment fails to ensure even coverage, resulting in uneven ice formation.

[0044] For the reasons mentioned above, the present invention provides an ice accumulation and freezing rain test device and test method that can operate at low temperatures and be adjusted according to the test equipment to make the surface ice form uniformly.

[0045] In an embodiment, such as Figure 1 and Figure 2 As shown, the present invention provides a low-temperature icing and freezing rain test device, including an icing and freezing rain test device and an environmental test chamber 309.

[0046] The freezing rain test apparatus includes: a control console 101, a heated water tank 102, a water purifier 103, an air compressor 104, a spray nozzle 105, a spray platform 106, an axial flow fan 107, and a return water pump 108. The environmental control box 309 includes: a refrigeration system 301, a control system 302, an air outlet 303, a return air outlet 304, a camera 305, a lighting system 306, and a mobile platform 308.

[0047] The internal temperature of the environmental control box 309 is adjustable and controllable.

[0048] The spray stand 106 is used to fix the spray head 105. It can be disassembled according to the test requirements. The bottom is equipped with pulleys so that it can be moved.

[0049] The nozzle 105 is connected to the water pipe 201 and the air pipe 202 respectively, and is used to spray water mist onto the test equipment 112 to generate ice.

[0050] The axial flow fan 107 is used to simulate the blowing environment and splashing icing scene in the polar region, and is composed of a fan and a support, is arranged in front of the spraying rack 106, faces the test equipment 112, and is provided with wheels at the bottom and is movable.

[0051] The console 101 is arranged outside the environmental test box 309, and is used to control the water flow of the spraying device, the spraying size, control the water temperature and the air pressure size, etc.

[0052] The moving platform 308 is arranged at the bottom of the environmental control box 309, and is used to carry the test equipment 112, and facilitates rotation and movement.

[0053] The water pipeline 201 includes a purified water pipeline, a heated water pipeline, a nozzle water supply pipeline and a backwater pipeline, and is used to provide a water source for the spraying device.

[0054] The air pipeline 202 includes a compressed air pipeline, a nozzle air supply pipeline and a flushing air pipeline, and is used to provide an air source for the spraying device.

[0055] The measuring equipment is placed inside the environmental test box 309, and is used to measure the temperature, wind speed, icing thickness and other parameters during and after the icing test.

[0056] In the embodiment, the low-temperature condition of the test equipment is set by the internal temperature-adjustable environmental test box, the temperature of the environmental test box is adjusted according to the surface temperature of the test equipment, so that the accelerated cooling test of the test equipment under low temperature can be carried out, and the real low-temperature use environment of the test equipment is simulated. The moving platform and the movable support of the spraying rack are arranged, so that the test equipment can change the position of being sprayed and icing during the experiment, and the test equipment can be uniformly sprayed and uniformly iced in all directions. Under low temperature, the water source is purified by the water purifier to avoid the nozzle being blocked, and the water source is heated by the heater to avoid the water pipeline being frozen; the residual water in the pipeline is removed by the air blowing pipeline, the pipeline is protected by the heat preservation layer, and the pipeline is prevented from being frozen and cracked. The spraying device is arranged, water mist can be sprayed to the test equipment, and the real freezing rain, icing and raining environment is simulated. The axial flow fan is arranged, the water mist sprayed by the spraying device can hit the surface of the test equipment, and the splashing icing and snow blowing environment is simulated. The measuring equipment and the monitoring system are arranged, the environmental conditions of the test area, the surface temperature of the test equipment and the icing thickness can be measured, so that whether the environmental conditions required by the test equipment under low temperature are reached can be judged. Therefore, the test equipment can be simulated to test the real environmental test conditions before the test equipment is actually served, and the reliability of the test equipment is improved.

[0057] For example, the moving platform 308 can be provided with a water collecting tray, the water collecting tray includes a plurality of holes, and the water collecting tray and the moving platform 308 are detachably and combinedly connected.

[0058] Specifically, the test equipment 112 is placed on the moving platform 308, and if the size of the test equipment 112 cannot be placed smoothly, a workpiece clamp can be installed on the moving platform 308 to fix the test equipment 112. The moving platform 308 can rotate so that the rainwater is sprayed more uniformly on the test sample.

[0059] Specifically, the test equipment 112 is placed on the moving platform 308, and if the size of the test equipment 112 cannot be placed smoothly, a workpiece clamp can be installed on the moving platform 308 to fix the test equipment 112. The moving platform 308 can rotate so that the rainwater is sprayed more uniformly on the test sample.

[0060] Specifically, the test equipment 112 is placed on the moving platform 308, and if the size of the test equipment 112 cannot be placed smoothly, a workpiece clamp can be installed on the moving platform 308 to fix the test equipment 112. The moving platform 308 can rotate so that the rainwater is sprayed more uniformly on the test sample.

[0061] Specifically, the test equipment 112 is placed on the moving platform 308, and if the size of the test equipment 112 cannot be placed smoothly, a workpiece clamp can be installed on the moving platform 308 to fix the test equipment 112. The moving platform 308 can rotate so that the rainwater is sprayed more uniformly on the test sample.

[0062] In one embodiment, the wind speed and direction sensor 111 measures the wind speed, which can be adjusted by the control console 101.

[0063] Specifically, the test equipment 112 is placed on the moving platform 308, and if the size of the test equipment 112 cannot be placed smoothly, a workpiece clamp can be installed on the moving platform 308 to fix the test equipment 112. The moving platform 308 can rotate so that the rainwater is sprayed more uniformly on the test sample.

[0064] Specifically, the test equipment 112 is placed on the moving platform 308, and if the size of the test equipment 112 cannot be placed smoothly, a workpiece clamp can be installed on the moving platform 308 to fix the test equipment 112. The moving platform 308 can rotate so that the rainwater is sprayed more uniformly on the test sample.

[0065] In one embodiment, the test equipment 112 is placed on the moving platform 308, and if the size of the test equipment 112 cannot be placed smoothly, a workpiece clamp can be installed on the moving platform 308 to fix the test equipment 112. The moving platform 308 can rotate so that the rainwater is sprayed more uniformly on the test sample.

[0066] Specifically, the test equipment 112 is placed on the moving platform 308, and if the size of the test equipment 112 cannot be placed smoothly, a workpiece clamp can be installed on the moving platform 308 to fix the test equipment 112. The moving platform 308 can rotate so that the rainwater is sprayed more uniformly on the test sample.

[0067] Specifically, the test equipment 112 is placed on the moving platform 308, and if the size of the test equipment 112 cannot be placed smoothly, a workpiece clamp can be installed on the moving platform 308 to fix the test equipment 112. The moving platform 308 can rotate so that the rainwater is sprayed more uniformly on the test sample.

[0068] Exemplarily, the icing and freezing rain test device further comprises an oil separator arranged in the water pipeline 201, for separating oil and other impurities possibly carried in the water pipeline 201 after being treated by the console 101.

[0069] Exemplarily, the console 101 further comprises a blowing pipeline arrangement, for blowing and treating the water pipeline 201 and the air pipeline 202 by the air compressor 104 of the air pipeline 202, to eliminate water droplets in the pipelines and prevent the pipelines from freezing due to water at low temperature.

[0070] In an embodiment, as shown in Figure 1 and Figure 2 The icing and freezing rain test device further comprises a flow meter 109 and a pressure sensor 110.

[0071] Specifically, the icing and freezing rain test device further comprises the flow meter 109 arranged in the console 101, for measuring the water supply flow of the spraying system and controlling the spraying intensity of the spray head 105.

[0072] Specifically, the icing and freezing rain test device further comprises the pressure sensor 110 arranged in the console 101, for measuring the air supply pressure of the spraying system and controlling the atomization intensity of the spray head.

[0073] Specifically, the icing and freezing rain test device further comprises a data acquisition system and a control system, for integrating and analyzing the data collected by the measuring devices, controlling the on-off of the devices, and real-time monitoring the test process.

[0074] Specifically, the icing and freezing rain test device further comprises a camera 305, for recording the test process of the testee equipment 112.

[0075] In an embodiment, as shown in Figure 3As shown, the application provides a method for icing rain test and icing rain test under low temperature, which is applied to an icing rain test device, the device comprises: an environmental test box with adjustable and controllable temperature; a moving platform which can be placed in the test box according to test requirements, used for carrying the test equipment, facilitating rotation and movement of the test equipment; a spraying rack used for fixing the spray head and sliding skeleton, which can be disassembled according to test requirements, and installed with pulleys, and is movable; a spraying device, the spray head is arranged on the spraying rack, respectively connected with a water pipe and an air pipe, used for spraying water mist to the test equipment to generate ice; an axial flow fan used for simulating the blowing environment and splashing icing scene in the polar region, composed of a fan and a support, arranged in front of the spraying rack, opposite to the test equipment, and installed with wheels at the bottom for movement; a control console arranged outside the environmental test box, used for controlling the water flow of the spraying device, the spray size, the water temperature and the air pressure size; a water pipeline comprising a purified water pipeline, a heated water pipeline, a spray head water supply pipeline and a return pipeline, used for providing water source for the spraying device; an air pipeline comprising a compressed air pipeline, a spray head air supply pipeline and a flushing air pipeline, used for providing air source for the spraying device; and a measuring device arranged in the environmental test box, used for measuring parameters such as temperature, wind speed and ice thickness during and after the icing test.

[0076] The method comprises:

[0077] Step S100, the number of spray heads of the spraying device is determined according to the volume of the test equipment, the movable support of the spraying rack is adjusted, and the position of the spray head of the spraying device is fixed.

[0078] Step S110, residual moisture in the water pipeline and the air pipeline is removed according to the control console before the test.

[0079] Step S120, the test temperature of the environmental test box is set, and the test area temperature is obtained according to the temperature sensor of the test area of the spraying rack.

[0080] Step S130, the surface temperature of the test equipment is collected, and the set temperature of the environmental test box is adjusted according to the test temperature.

[0081] Step S140, the water supply temperature and the wind speed of the spraying device are adjusted according to the environmental conditions of the test equipment through the control console.

[0082] Step S150, the corresponding spraying intensity and ice thickness of the test equipment are obtained, and the water spraying amount and the spraying water mist intensity of the spraying device are adjusted according to the spraying intensity and the ice thickness.

[0083] Step S161, the test area temperature inside the environmental test chamber and the surface temperature of the test equipment are acquired, when the surface temperature of the test equipment reaches the preset temperature, and the water spraying amount and the spray size of the spraying device reach the preset value, the test equipment is run, the current running working state of the test equipment is acquired, when the current working performance of the test equipment reaches the requirement of the actual working performance demand, it is determined that the test equipment performance is up to standard; when the current working performance of the test equipment cannot reach the requirement of the actual working performance demand, it is determined that the test equipment performance is not up to standard.

[0084] Step S162, the test area temperature inside the environmental test chamber and the surface temperature of the test equipment are acquired, when the surface temperature of the test equipment reaches the preset temperature, and the ice thickness of the spraying device reaches the preset value, the test equipment is run, the current running working state of the test equipment is acquired, when the current working performance of the test equipment reaches the requirement of the actual working performance demand, it is determined that the test equipment performance is up to standard; when the current working performance of the test equipment cannot reach the requirement of the actual working performance demand, it is determined that the test equipment performance is not up to standard.

[0085] Step S163, the test area temperature inside the environmental test chamber and the surface temperature of the test equipment are acquired, when the surface temperature of the test equipment reaches the preset temperature, and the ice thickness of the spraying device reaches the preset value, the test equipment is run after deicing, the current running working state of the test equipment is acquired, when the current working performance of the test equipment reaches the requirement of the actual working performance demand, it is determined that the test equipment performance is up to standard; when the current working performance of the test equipment cannot reach the requirement of the actual working performance demand, it is determined that the test equipment performance is not up to standard.

[0086] In the embodiment, the low-temperature condition of the test equipment is set by the environmental test chamber, the temperature of the environmental test chamber is adjusted according to the surface temperature of the test equipment, so that the test equipment under low temperature can be accelerated tested, and the real low-temperature environment of the test equipment is simulated. By setting the moving platform and the movable support of the spraying rack, the test equipment can be uniformly sprayed and fully iced in all directions during the experiment. Under low temperature, the water source is purified by setting the water purifier to avoid clogging of the spray head, and the water source is heated by setting the heater to avoid freezing of the water pipeline; the residual moisture in the pipeline is removed by setting the blowing pipeline, and the pipeline is protected by setting the insulation layer to prevent the pipeline from freezing and cracking. By setting the spraying device, water mist can be sprayed to the test equipment to simulate the real freezing rain, ice accumulation and rain environment. By setting the axial flow fan, the water mist sprayed by the spraying device can hit the surface of the test equipment to simulate the splashing icing and snow blowing environment. By setting the measuring equipment and the monitoring system, the environmental conditions of the test area, the surface temperature of the test equipment and the ice thickness can be measured, so that whether the required environmental conditions of the test equipment under low temperature are reached can be judged. Therefore, before the test equipment is actually served, the test equipment can be simulated to test the real environmental test conditions, and the reliability of the equipment is improved.

[0087] It should be understood that, although Figure 3 The steps in the flowchart of the method are displayed in sequence according to the arrows, but these steps are not necessarily executed in sequence according to the arrows. Unless otherwise specified herein, the execution of these steps is not strictly limited in sequence, and these steps can be executed in other sequences. Moreover, Figure 3 At least part of the steps in the method can include multiple steps or multiple stages, which are not necessarily executed at the same time, but can be executed at different times, and the execution sequence of these steps or stages is not necessarily sequential, but can be executed alternately or alternately with at least part of other steps or steps or stages in other steps.

[0088] A person of ordinary skill in the art can understand that all or part of the above-mentioned embodiment methods can be completed by a computer program instructing related hardware, and the computer program can be stored in a non-volatile computer readable storage medium. When the computer program is executed, it can include the flow of the above-mentioned embodiment of each method. Among them,

[0089] Any reference to storage, memory, database or other medium herein can include at least one of volatile and non-volatile storage. Non-volatile storage can include read-only memory (ROM), tapes, floppy disks, flash memories, or optical storage, and the like. Volatile storage can include random access memory (RAM) or external cache memory. By way of illustration, and not limitation, RAM can be SRAM, DRAM, or the like.

[0090] Any of the technical features of the above embodiments can be combined, and for brevity, not all possible combinations of the technical features of the above embodiments are described, however, any combination of the technical features should be considered as within the scope of the present disclosure as long as the combination does not result in a contradiction.

[0091] The above embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the present application. It should be pointed out that, for those skilled in the art, some modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A device for preventing ice accumulation and freezing rain in low-temperature environments, characterized in that: include: Environmental test chamber, mobile platform, spray frame, spray device, axial flow fan, control console, water pipeline, measuring equipment, The environmental test chamber has an adjustable and controllable internal temperature, simulating a real low-temperature operating environment for the tested equipment. The mobile platform, placed inside the environmental test chamber according to the test requirements, is used to carry the test equipment and facilitates the rotation and movement of the test equipment. The spray stand is used to fix the nozzles of the spray device and can be disassembled, installed with pulleys, and moved according to the test requirements, so that the test equipment can change the sprayed and ice-accumulated parts during the test, so that the test equipment can be sprayed and ice-covered evenly from all directions. The spray device has nozzles mounted on a spray platform and connected to water pipes and air pipes respectively. It is used to spray water mist onto the test equipment to simulate real freezing rain, ice accumulation and rain conditions. An axial flow fan is placed in front of the spray platform, facing the test equipment. It is equipped with wheels at the bottom and is movable. It is used to simulate the windy environment and splashing icing scenario in the polar region. The control console, located outside the environmental test chamber, is used to control the water flow rate, spray size, water temperature, and air pressure of the spray device. Water pipelines, including purified water pipelines, heated water pipelines, sprinkler head water supply pipelines and return water pipelines, are used to provide water for the sprinkler system; Air pipelines, including compressed air lines, nozzle air supply lines, and flushing air lines, are used to provide air sources for the spraying device; The measuring equipment, placed inside the environmental test chamber, is used to measure parameters such as temperature, wind speed, and ice thickness during and after the icing test.

2. The ice-accumulating and freezing rain device suitable for low-temperature environments according to claim 1, characterized in that, The mobile platform is equipped with a water receiving tray, which includes multiple openings. The water receiving tray and the mobile platform are detachable and combinable.

3. The ice-accumulating and freezing rain device suitable for low-temperature environments according to claim 1, characterized in that, The spraying stand is equipped with a wind speed and direction sensor and a temperature sensor. The wind speed and direction sensor is located on the spraying stand and is used to monitor the wind speed and direction parameters in the spraying test area. The temperature sensor is located on the spraying stand and around the equipment under test and is used to monitor the temperature parameters in the spraying test area.

4. The ice-accumulating and freezing rain device suitable for low-temperature environments according to claim 1, characterized in that, The spray frame also includes a movable support, a fixed support, and a detachable wind baffle. The detachable wind baffle is installed on the spray frame to prevent the spray device from being affected by the wind speed of the environmental test chamber during snow accumulation tests. The movable support can adjust the test range of the spray device by moving horizontally and vertically within the space of the spray frame. The fixed support is used to install the nozzles of the spray device and can move within the space of the spray frame, and can be installed and disassembled according to the number required for the test.

5. The ice-accumulating and freezing rain device suitable for low-temperature environments according to claim 1, characterized in that, The water and gas pipelines include thermal insulation sleeves to keep the medium in the pipelines warm at low temperatures and prevent ice blockage.

6. The ice-accumulating and freezing rain device suitable for low-temperature environments according to claim 1, characterized in that, The device also includes an oil separator, a water purifier, and a heating water tank. The oil separator is installed on the water pipeline to separate oil that may be carried in the water pipeline after being processed by the control console. The water purifier is installed at the water inlet of the water pipeline to purify the water source and prevent the nozzles from clogging. The heating water tank is installed on the water pipeline to heat the water source and prevent the water pipeline from freezing.

7. The ice-accumulating and freezing rain device suitable for low-temperature environments according to claim 1, characterized in that, The control console also includes a blow-through duct system, which uses an air compressor to blow through the water and air ducts to remove water droplets from the ducts.

8. The ice-accumulating and freezing rain device suitable for low-temperature environments according to claim 1, characterized in that, The control console is also equipped with a flow meter and a pressure sensor. The flow meter is used to measure the water supply flow of the spray device and control the spray intensity of the nozzles; the pressure sensor is used to measure the air supply pressure of the spray system and control the atomization intensity of the nozzles.

9. The ice-accumulating and freezing rain device suitable for low-temperature environments according to claim 1, characterized in that, The device also includes a data acquisition system, a control system, and a camera, used to record the test process of the equipment under test, integrate and analyze the data collected by the measuring equipment, control the switching of the equipment, and monitor the test process in real time.

10. A method for testing icing and freezing rain in low-temperature environments, employing an icing and freezing rain apparatus suitable for low-temperature environments, characterized in that... The method includes: Step S1: Determine the number of spray nozzles of the spray device according to the volume of the test equipment, adjust the movable support of the spray table, and fix the position of the spray nozzles of the spray device. Step S2: Before the test, remove any residual moisture from the water and air lines according to the control panel settings. Step S3: Set the test temperature of the environmental test chamber and obtain the test area temperature based on the temperature sensor of the test area of ​​the spray table. Step S4: Collect the surface temperature of the test equipment and adjust the set temperature of the environmental test chamber according to the test temperature. Step S5: Adjust the water supply temperature and wind speed of the spray device via the control console according to the environmental conditions of the test equipment. Step S6: Obtain the spray intensity and icing thickness corresponding to the test equipment, and adjust the water volume and spraying intensity of the spray device according to the spray intensity and icing thickness. Step S7: Obtain the temperature of the test area inside the environmental test chamber and the surface temperature of the equipment under test. When the surface temperature of the equipment under test reaches the preset temperature, and the water spray volume and spray size of the spray device reach the preset values, run the equipment under test and obtain the current operating status of the equipment under test. When the current working performance of the equipment under test meets the requirements of the actual working performance, the performance of the equipment under test is determined to be up to standard; when the current working performance of the equipment under test does not meet the requirements of the actual working performance, the performance of the equipment under test is determined to be down to standard. Step S8: Obtain the temperature of the test area inside the environmental test chamber and the surface temperature of the equipment under test. When the surface temperature of the equipment under test reaches the preset temperature and the ice thickness of the spray device reaches the preset value, run the equipment under test and obtain the current operating status of the equipment under test. When the current operating performance of the equipment under test meets the requirements of the actual operating performance, the performance of the equipment under test is determined to be up to standard; when the current operating performance of the equipment under test does not meet the requirements of the actual operating performance, the performance of the equipment under test is determined to be down to standard. Step S9: Obtain the temperature of the test area inside the environmental test chamber and the surface temperature of the equipment under test. When the surface temperature of the equipment under test reaches the preset temperature and the ice thickness of the spray device reaches the preset value, de-ice the equipment under test and then run the equipment under test to obtain the current operating status of the equipment under test. When the current working performance of the equipment under test meets the requirements of the actual working performance, the performance of the equipment under test is determined to be up to standard; when the current working performance of the equipment under test does not meet the requirements of the actual working performance, the performance of the equipment under test is determined to be down to standard.

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