A multi-comprehensive environmental evaluation test device

Abstract

The utility model belongs to the field of spare reliability test, disclose a kind of many comprehensive environment evaluation test device, including test cavity (4), heating unit, light control unit, water environment unit, salt fog unit and controller (15);The controller (15) is connected with heating unit, light control unit, water environment unit, salt fog unit;The heating unit includes heating resistance wire (1), heat preservation cotton (5), thermocouple (20), solenoid valve switch (16);The resistance wire (1) is located in the left and right sides of test cavity (4), heat preservation cotton (5) is covered in heating resistance wire (1) outside, thermocouple (21) is installed in the sample to be measured and places area.The utility model's technical scheme can realize the influence research of four main environmental factors of light, heat, water, salt fog to material performance simultaneously.

Description

Technical Field

[0001] This utility model belongs to the field of component reliability testing technology, specifically relating to a multi-environmental evaluation testing device. Background Technology

[0002] Various materials, components, and products are primarily affected by environmental factors such as light, heat, water, and salt spray during storage, transportation, and service. Currently, their performance evaluation mainly relies on single-factor assessments. However, environmental factors in nature rarely exist in isolation; the combined effects of different environmental factors cannot be ignored. Comprehensive environmental testing may be more representative of real-world environmental effects than a series of consecutive individual tests. As product environmental adaptability requirements continue to increase, artificial environmental simulation has evolved from single-factor simulation to multi-factor combination / comprehensive simulation, placing new technical demands on testing equipment capabilities. Currently, comprehensive environmental testing devices for materials in the vehicle industry are mostly used in-situ, which suffer from drawbacks such as large device size and complex operation, making them difficult to directly apply to laboratory simulation evaluations.

[0003] The integrated testing facilities for each application area lack post-test processing units. Salt spray environments are highly corrosive to equipment, resulting in poor stability and low reliability for untreated equipment. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] The technical problem to be solved by this utility model is to provide a test device that can provide multi-environment simulation for laboratory applications.

[0006] (II) Technical Solution

[0007] To solve the above-mentioned technical problems, this utility model provides a multi-environmental evaluation test device, including a test chamber 4, a heating unit, a light control unit, a water environment unit, a salt spray unit, and a controller 15; the controller 15 is connected to the heating unit, the light control unit, the water environment unit, and the salt spray unit.

[0008] The heating unit includes a heating resistance wire 1, insulation cotton 5, thermocouple 20, and solenoid valve switch 16; the resistance wire 1 is located on the left and right sides of the test chamber 4, the insulation cotton 5 is covered on the outside of the heating resistance wire 1, and the thermocouple 21 is installed in the area where the sample 22 to be tested is placed.

[0009] The light control unit includes multiple types of test light sources 3, which are evenly distributed and placed on the rear side of the test chamber 4. The outside of the light control unit is provided with a fully transparent glass 19.

[0010] The water environment unit includes a sprayer 6, a rubber pipe 7, a flow meter 8, a water tank 9, and a circulating pump 16. The water tank is used to store various types of aqueous solutions. The sprayers 6 are evenly distributed above the test chamber 4. The sprayers 6 are connected to the water tank 9 through the rubber pipe 7. The flow meter 8 is installed on the rubber pipe 7. The circulating pump 14 is installed at the bottom of the test chamber 4 and connected to the water tank 9.

[0011] The salt spray unit includes a salt spray tank 11, a peristaltic pump 12, an ultrasonic atomizer 13, a fresh air fan 17, and a solution collection tank 25. The salt spray tank 11 is used to store a salt solution. The inlet of the peristaltic pump 12 is connected to the salt spray tank 11, and the outlet is connected to the ultrasonic atomizer 13. A fresh air fan 17 is installed at the outlet of the ultrasonic atomizer 13. The fresh air fan 17 is connected to two vents 18. One vent 18 is used to introduce the salt spray vapor generated by the ultrasonic atomizer 13 into the test chamber 4, and the other vent 18 is used to draw air to dry the equipment inside the test chamber 4. The test chamber 4 is designed with an arc-shaped top chamber. The top of the chamber is seamlessly connected to the side wall of the test chamber. After the salt spray vapor condenses on the top of the chamber, it slides along the arc-shaped top to the side wall and drips down the side wall to the solution collection tank 25.

[0012] Furthermore, the controller is equipped with an alarm unit that will immediately stop heating if the temperature inside the chamber significantly exceeds the test range, ensuring test safety.

[0013] Furthermore, various types of experimental light sources include xenon lamps, fluorescent ultraviolet lamps, halogen lamps, and carbon arc lamps.

[0014] Furthermore, the spray direction and nozzle diameter of the sprayer can be manually adjusted.

[0015] Furthermore, the inner wall of the test chamber and the nozzles of the sprayer are coated with a salt spray resistant coating to prevent corrosion.

[0016] Furthermore, the test chamber has multiple spare holes inside, which can be used for equipment debugging.

[0017] Furthermore, a sample holder is installed inside the test chamber.

[0018] Furthermore, the water environment unit and the salt spray unit can provide spray liquid and atomized gas respectively, and the liquid in both units can be freely selected according to the test requirements.

[0019] Furthermore, at the air connector of the fresh air fan, in addition to air, other gaseous environments can be selected for introduction.

[0020] Furthermore, a transparent observation window is provided at the front of the test chamber.

[0021] (III) Beneficial Effects

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. This device can simultaneously study the effects of four major environmental factors—light, heat, water, and salt spray—on material properties. Compared with other devices, it features a simple and compact structural design. The simple structural design enables the recirculation of condensate. Most of the device components are installed outside the chamber, thus avoiding adverse effects of the testing environment on the device.

[0024] 2. The functional design is simple and highly efficient. The circulating pump is used in both loops of the water environment and salt spray environment units. After the test, the cleaning and drying unit uses the water environment unit and the salt spray unit to clean and dry the entire cavity, thereby avoiding salt spray deposition.

[0025] 3. The four working units in the device are independent of each other and do not interfere with each other. In actual operation, each parameter can be controlled independently, allowing for free combination of various testing environments. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the multi-comprehensive environmental assessment test device of this utility model;

[0027] In the diagram: 1. Heating resistance wire; 2. Spare hole; 3. Test light source; 4. Test chamber; 5. Insulation cotton; 6. Sprayer; 7. Rubber hose; 8. Flow meter; 9. Water tank; 10. Valve; 11. Salt spray tank; 12. Peristaltic pump; 13. Ultrasonic atomizer; 14. Circulation pump; 15. Controller; 16. Solenoid valve switch; 17. Fresh air fan; 18. Ventilation outlet; 19. Fully transparent glass; 20. Hinge; 21. Thermocouple; 22. Sample to be tested; 23. Handle; 24. Sample holder; 25. Solution collection tank; 26. Observation chamber. Detailed Implementation

[0028] To make the objectives, contents, and advantages of this utility model clearer, the specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0029] This embodiment provides a four-dimensional environmental testing device, consisting of a test chamber 4, a heating unit, a light control unit, a water environment unit, a salt spray unit, and a cleaning and drying unit. The heating unit, light control unit, water environment unit, and salt spray unit respectively provide the required four test environments: temperature, light, water, and salt spray.

[0030] The heating unit mainly consists of a heating resistance wire 1, insulation cotton 5, a PID controller 15, a thermocouple 20, and a solenoid valve switch 16. The resistance wire 1 is located on the left and right sides of the test chamber 4 and is used for heating. The insulation cotton 5 covers the heating resistance wire 1 and is used for heat preservation inside the chamber. Thermocouple 21 is installed in the area where the sample 22 is placed to ensure the accuracy of the measured temperature. The controller 15 is used to set, maintain, and display the test temperature in real time.

[0031] Specifically, the controller 15 is equipped with an alarm unit, which will immediately stop heating once the temperature inside the cavity exceeds the test range to ensure test safety.

[0032] The light control unit mainly consists of multiple types of test light sources 3 (xenon lamps, fluorescent ultraviolet lamps, halogen lamps, carbon arc lamps, etc.), wires, and a controller 15. The light sources are evenly distributed and placed at the rear of the cavity 4. They are isolated by fully transparent glass 19 to prevent corrosion caused by salt spray or other environmental factors.

[0033] The water environment unit is mainly used to simulate environmental conditions such as natural rainfall. It consists of a sprayer 4, rubber hoses 7, a flow meter 8, a water tank 9, and a circulation pump 16. The water tank is used to store various types of aqueous solutions, such as rainwater and pure water. The spray devices are evenly distributed above the cavity 4. The aqueous solution enters the sprayer 6 after passing through the flow meter 9 and is sprayed directly above the sample 22. Subsequently, the solution generated by the spraying flows back through the bottom and is returned to the water tank 9 by the circulation pump 14, realizing the recycling of the aqueous solution.

[0034] Specifically, the spray direction and nozzle diameter of the sprayer can be manually adjusted to meet different experimental needs.

[0035] The salt spray unit is used to simulate salt spray conditions in a marine environment. It consists of a salt spray tank 11, a peristaltic pump 12, an ultrasonic atomizer 13, a fresh air fan 17, and a solution collection tank 25. The salt-containing aqueous solution flows into the ultrasonic atomizer 13 via the peristaltic pump 12, and the generated salt spray vapor is introduced into the cavity 4. The cavity 4 is designed with an arc-shaped top chamber, which is seamlessly connected to the side wall of the test chamber. After the salt spray condenses on the top chamber, it slides along the arc-shaped top chamber to the side wall and drips down the side wall into the solution collection tank 25, thus avoiding direct dripping onto the sample 22 to be tested.

[0036] The cleaning and drying unit refers to the process of spraying pure water into the water environment unit to clean the inside of the cavity after the experimental test. Then, a fresh air fan 17 is used to dry it, preventing salt spray deposition from corroding the equipment.

[0037] Specifically, the fresh air fan 17 is connected to two ventilation ports 18. One port is a salt spray circuit, used to extract salt spray vapor and send it into the test chamber 4; the other port is used to extract air to dry the equipment after the test.

[0038] Specifically, the inner wall of the cavity 4 and other devices such as the nozzle of the sprayer 6 are coated with a salt spray resistant coating to prevent corrosion.

[0039] Specifically, the various devices are connected by rubber tubes 7, and the joints are sealed by straight-through valves 10.

[0040] Specifically, the cavity has multiple spare holes 2 inside, which can be used to adjust the salt spray nozzle or install other equipment. When not in use, the spare holes are sealed with normally closed valves.

[0041] Specifically, a fully transparent glass 19 is provided at the front of the cavity for placing and observing samples. The inner side of the glass is sealed with a sealing strip at the contact point with the cavity.

[0042] Optionally, the water environment unit and the salt spray unit can provide spray liquid and atomized gas respectively, and the liquid in both tanks can be freely selected according to the test requirements.

[0043] Optionally, other gas environments besides air can be introduced at the air connector of the fresh air fan 17.

[0044] Optionally, the sample holder 24 can be selected according to the actual shape of the sample; for large components, the holder may not be installed.

[0045] To make the technical means, creative features, objectives, and effects of this invention easier to understand, the invention is further described below in conjunction with specific embodiments. This embodiment discloses a test method using the aforementioned comprehensive environmental testing device for temperature, light, water, and salt spray factors:

[0046] Before the experiment begins: Open the glass door handle 23 of the observation chamber 26 and place the sample 22 to be tested on the sample stage 24. Prepare the test solution and place it in the water tank 9 and the salt spray tank 11.

[0047] During the experiment: The temperature is set on controller 15, and the temperature control switch of solenoid valve 16 is turned on to control the heating of the resistance wire 1 around chamber 4. When the ambient temperature reaches the test requirements, the light control switch of solenoid valve 16 is turned on to control the test light source; the water environment unit valve 10, the circulation pump 14 switch in solenoid valve 16, the flow meter 8, and the sprayer 6 switch in solenoid valve 16 are turned on sequentially to start the water environment unit; based on this, all valves 10, the peristaltic pump 12, the ultrasonic atomizer 13, and the fresh air fan 17 in the salt spray unit are turned on sequentially to start the salt spray unit. For individual use of the water environment unit and the salt spray unit, the solution can be repeatedly collected using a circulation loop.

[0048] After the experiment: shut down all control units via solenoid valve 16, and after the temperature drops to room temperature, remove the sample 22 to be tested. Replace the solution in water tank 9 with pure water, and turn on the spray switch again to thoroughly clean the inner cavity 4 of the device. Then, shut down the water environment unit, turn on the fresh air fan 17, and blow dry air into the inner cavity 4 through the vent 18 to dry it.

[0049] The key point of this embodiment is:

[0050] 1. It can simultaneously simulate light, heat, water, and salt spray conditions under natural environments, and can be applied to the comprehensive performance testing of various materials (metals, non-metals, coatings, etc.), parts, and products.

[0051] 2. The heating unit consists of a resistance wire, insulation cotton, a PID control unit, a thermocouple, and a display unit, which can realize temperature monitoring, control, and safety alarm.

[0052] 3. The light control unit consists of multiple types of light sources, wires, and a controller, and can realize the combined simulation of multiple types of light sources.

[0053] 4. The water environment unit consists of a spray device, a water tank, a circulating pump, a flow meter, and a solution collection tank, which can simulate spraying conditions; the salt spray unit consists of a salt spray water tank, a peristaltic pump, an ultrasonic atomizer, and a solution collection tank, and can simulate salt spray conditions in different marine environments by adjusting the flow rate. Both have complete circulation loops.

[0054] 5. The cleaning and drying unit can remove residual salt mist in the device by spraying pure water and introducing air after the test, so as to avoid the corrosion of the equipment by salt mist deposition.

[0055] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A comprehensive environmental assessment test device, characterized in that, It includes a test chamber (4), a heating unit, a light control unit, a water environment unit, a salt spray unit, and a controller (15); the controller (15) is connected to the heating unit, the light control unit, the water environment unit, and the salt spray unit; The heating unit includes a heating resistance wire (1), insulation cotton (5), thermocouple (20), and solenoid valve switch (16); the resistance wire (1) is located on the left and right sides of the test chamber (4), the insulation cotton (5) is covered outside the heating resistance wire (1), and the thermocouple (21) is installed in the sample placement area. The light control unit includes multiple types of test light sources (3), each light source is evenly distributed and placed on the rear side of the test chamber (4), and the outside of the light control unit is provided with a fully transparent glass (19); The water environment unit includes a sprayer (6), a rubber hose (7), a flow meter (8), a water tank (9), and a circulating pump (16). The water tank is used to store various types of aqueous solutions. The sprayers (6) are evenly distributed above the test chamber (4). The sprayers (6) are connected to the water tank (9) through the rubber hose (7). The flow meter (8) is installed on the rubber hose (7). The circulating pump (14) is installed at the bottom of the test chamber (4) and connected to the water tank (9). The salt spray unit includes a salt spray tank (11), a peristaltic pump (12), an ultrasonic atomizer (13), a fresh air fan (17), and a solution collection tank (25). The salt spray tank (11) is used to store a salt solution. The inlet of the peristaltic pump (12) is connected to the salt spray tank (11), and the outlet is connected to the ultrasonic atomizer (13). A fresh air fan (17) is installed at the outlet of the ultrasonic atomizer (13). The fresh air fan (17) is connected to two vents (18). One vent (18) is used to introduce the salt spray vapor generated by the ultrasonic atomizer (13) into the test chamber (4), and the other vent (18) is used to draw air to dry the equipment in the test chamber (4). The test chamber (4) is designed with an arc-shaped top chamber. The top of the chamber is seamlessly connected to the side wall of the test chamber. After the salt spray vapor condenses on the top of the chamber, it slides along the arc-shaped top to the side wall and drips down the side wall to the solution collection tank (25).

2. The multi-environmental assessment test device as described in claim 1, characterized in that, The controller is equipped with an alarm unit. If the temperature inside the chamber exceeds the test range significantly, it will immediately stop heating to ensure test safety.

3. The multi-environmental assessment test device as described in claim 1, characterized in that, Various types of test light sources include xenon lamps, fluorescent ultraviolet lamps, halogen lamps, and carbon arc lamps.

4. The multi-environmental assessment test device as described in claim 1, characterized in that, The spray direction and nozzle diameter of the sprayer can be manually adjusted.

5. The multi-environmental assessment test device as described in claim 1, characterized in that, The inner wall of the test chamber and the nozzles of the sprayer are coated with a salt spray resistant coating to prevent corrosion.

6. The multi-environmental assessment test apparatus as described in claim 1, characterized in that, The test chamber has multiple spare holes inside, which can be used for equipment debugging.

7. The multi-environmental assessment test device as described in claim 1, characterized in that, The test chamber is equipped with a sample holder.

8. The multi-environmental assessment test apparatus as described in claim 1, characterized in that, The water environment unit and the salt spray unit can provide spray liquid and atomized gas, respectively, and the liquid in both units can be freely selected according to the test requirements.

9. The multi-environmental assessment test device as described in claim 1, characterized in that, At the air connector of the fresh air fan, in addition to air, other gas environments can be selected for introduction.

10. The multi-environmental assessment test apparatus as described in claim 1, characterized in that, A transparent observation window is provided at the front of the test chamber.

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