Modular combined environmental simulation chamber

Abstract

The application discloses a modular combined environment simulation box, belongs to the technical field of simulation environment corrosion test, and is used for solving at least one problem of large structural difference of a metal material corrosion device, inconsistency of an internal working chamber space of an environment box, and poor data correlation between different accelerated corrosion methods in the prior art. The environment simulation box is in a spraying mode, heating components, spraying components and humidifying components are turned on, a salt mist component and a rotating wheel disc are removed, and a sample is arranged on a fixed sample holder; the environment simulation box is in a circumfluent immersion mode, heating components and humidifying components are turned on, a spraying component and a salt mist component are removed, a sample is arranged on a rotating wheel disc, and the rotating wheel disc rotates to periodically immerse the sample in solution in a solution tank; and the environment simulation box is in a salt mist mode, heating components, humidifying components and a salt mist component are turned on, a spraying component and a rotating wheel disc are removed, and a sample is arranged on a fixed sample holder. The application can be used for environment simulation of metal materials.

Description

Technical Field

[0001] This invention belongs to the field of environmental corrosion testing technology, and particularly relates to a modular combined environmental simulation chamber. Background Technology

[0002] Corrosion testing is one of the important bases for studying the corrosion law of metallic materials, assessing corrosion life, and proposing protection schemes.

[0003] To simulate different metal corrosion environments, commonly used accelerated corrosion devices include peripheral immersion accelerated corrosion test chambers, spray test chambers, and salt spray test chambers. Among them, peripheral immersion accelerated corrosion test chambers are used for solution wetting corrosion tests, salt spray test chambers are used for salt spray corrosion tests, and spray test chambers are used for spray corrosion tests.

[0004] When metallic materials need to undergo simulated corrosion tests in different environments, different accelerated corrosion devices and test methods are usually required for evaluation. This results in a variety of environmental corrosion test devices, inconsistent temperature and humidity control components that affect corrosion results, and different sizes and structures for each accelerated corrosion device, leading to a lack of relatively uniform equipment conditions for simulated environmental corrosion tests. Summary of the Invention

[0005] Based on the above analysis, the present invention aims to provide a modular combined environmental simulation chamber to standardize the corrosion testing device components to the overall device assembly, thereby solving at least one of the following problems in the prior art: the diversity of comprehensive environmental corrosion testing devices for metallic materials, the lack of uniformity in temperature and humidity control components that affect corrosion results, the use of equipment from different manufacturers for the same test method, and the significant differences in test results.

[0006] The objective of this invention is mainly achieved through the following technical solutions.

[0007] This invention provides a modular environmental simulation chamber, including a heating component, a spray component, a humidification component, a salt spray component, a solution tank, a fixed sample holder, and a rotating disc. The environmental simulation chamber has a spray mode, a peripheral immersion mode, and a salt spray mode. In spray mode, the heating component, spray component, and humidification component are activated, the salt spray component and rotating disc are removed, and the sample is placed on the fixed sample holder. In peripheral immersion mode, the heating component and humidification component are activated, the spray component and salt spray component are removed, and the sample is placed on the rotating disc, which rotates to periodically immerse the sample in the solution tank. In salt spray mode, the heating component, humidification component, and salt spray component are activated, the spray component and rotating disc are removed, and the sample is placed on the fixed sample holder.

[0008] Furthermore, the heating element is an infrared lamp.

[0009] Furthermore, the heating element is a bathroom heater lamp.

[0010] Furthermore, it also includes a water circulation component.

[0011] Furthermore, the water circulation assembly includes a purifier, a cooler, and a circulating water pump connected in sequence.

[0012] Furthermore, the outlet of the circulating water pump is connected to the inlet of the spray assembly, the inlet of the humidification assembly, and the inlet of the salt spray assembly.

[0013] Furthermore, it also includes a flange, and the rotating shaft of the rotating disk passes through the flange and is rotatably connected to the flange.

[0014] Furthermore, there are two flanges, namely a first flange and a second flange.

[0015] Furthermore, one end of the rotating shaft of the rotating disk passes through the first flange and is rotatably connected to the flange, while the other end of the rotating shaft of the rotating disk passes through the second flange and is rotatably connected to the flange.

[0016] Furthermore, the fixed sample holder includes a mounting plate and a lifting device, with the sample placed on the mounting plate and the lifting end of the lifting device connected to the sample.

[0017] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects.

[0018] A) The modular combined environmental simulation chamber provided by the present invention adopts a modular combination method, integrating heating components, humidification components, spray components, salt spray components, solution tank, fixed sample rack and rotating wheel into the same environmental simulation chamber. It can be disassembled and switched as needed, so that the environmental simulation chamber can have multiple corrosion test modes (i.e. spray mode, immersion mode and salt spray mode), without the need to be equipped with multiple test devices, thereby achieving the unification of key components such as heating and humidification and working chamber space.

[0019] B) The modular combined environmental simulation chamber provided by the present invention, since the spray corrosion test, the peripheral immersion corrosion test and the salt spray corrosion test are all carried out in the same shell, can achieve the unification of spatial conditions and test conditions by adjusting the process parameters, effectively improve the standardization of temperature and humidity control for spray corrosion test, peripheral immersion corrosion test and salt spray corrosion test, and is more conducive to the standardization of corrosion equipment.

[0020] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages may become apparent from the description or be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained through the embodiments described and the accompanying drawings, which are particularly pointed out. Attached Figure Description

[0021] The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0022] Figure 1 This is a schematic diagram of the modular combined environmental simulation box provided in Embodiment 1 of the present invention in spray mode;

[0023] Figure 2 This is a schematic diagram of the modular combined environmental simulation chamber provided in Embodiment 1 of the present invention in the immersion mode.

[0024] Figure 3 This is a schematic diagram of the modular combined environmental simulation chamber provided in Embodiment 1 of the present invention in salt spray mode;

[0025] Figure 4a A diagram illustrating the first process of flipping or lifting a sample in a modular combined environmental simulation chamber provided in Embodiment 1 of the invention.

[0026] Figure 4b A diagram illustrating the second process of sample flipping in a modular combined environmental simulation chamber provided in Embodiment 1 of the invention.

[0027] Figure 4c A diagram illustrating the third process of sample flipping in the modular combined environmental simulation chamber provided in Embodiment 1 of the invention;

[0028] Figure 5 This is a schematic diagram of the spray hole structure in the modular combined environmental simulation box provided in Embodiment 1 of the invention.

[0029] Figure label:

[0030] 1-Shell; 2-Heating assembly; 3-Spray assembly; 4-Humidification assembly; 5-Salt spray assembly; 6-Solution tank; 7-Fixed sample holder; 71-Plate body; 72-Flipping surface; 73-Support bar; 74-Water inlet constant diameter hole; 75-Necked hole; 76-Low pressure constant diameter hole; 77-Expanding hole; 8-Rotating wheel; 9-Air supply assembly; 10-Exhaust assembly; 11-Water circulation assembly; 12-Sample. Detailed Implementation

[0031] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0032] Example 1

[0033] This embodiment provides a modular, combined environmental simulation box; see [link / reference] Figures 1 to 3 It includes a housing 1 and a heating component 2 (e.g., an infrared lamp or a bathroom heater lamp) disposed within the housing 1, a spray component 3, a humidification component 4, a salt spray component 5, a solution tank 6, a fixed sample holder 7, and a rotating wheel 8.

[0034] The environmental simulation chamber has spray mode, peripheral immersion mode, and salt spray mode. In spray mode, heating component 2, spray component 3, and humidification component 4 are activated, while salt spray component 5 and rotating wheel 8 are removed, and sample 12 is placed on fixed sample holder 7. In peripheral immersion mode, heating component 2 and humidification component 4 are activated, while spray component 3 and salt spray component 5 are removed, and sample 12 is placed on rotating wheel 8. The rotating wheel 8 rotates, causing sample 12 to periodically immerse in the solution in solution tank 6. In salt spray mode, heating component 2, humidification component 4, and salt spray component 5 are activated, while spray component 3 and rotating wheel 8 are removed, and sample 12 is placed on fixed sample holder 7.

[0035] To better understand the components required in different modes, the above Figures 1 to 3 Only the components required in the corresponding mode are displayed; components in other modes are omitted.

[0036] It should be noted that in practical applications, the environmental simulation chamber is in at least one mode. In order to achieve environmental simulation under specific test conditions, the environmental simulation chamber can be in spray mode and salt spray mode at the same time, and the sample 12 is placed on the rotating wheel 8.

[0037] Compared with the prior art, the modular combined environmental simulation chamber provided in this embodiment adopts a modular combination method, integrating the heating component 2 (e.g., infrared lamp or bathroom heater lamp), spray component 3, humidification component 4, salt spray component 5, solution tank 6, fixed sample rack 7 and rotating wheel 8 into the same environmental simulation chamber. This allows the environmental simulation chamber to switch or combine multiple corrosion test modes (i.e., a single spray mode, a single perimeter immersion mode, a single salt spray mode, and an alternating combination of spray mode and salt spray mode), without the need to equip multiple test devices. This enables the standardization of components and the standardization of the test device assembly, while meeting the specific environmental simulation test requirements.

[0038] Considering that in practical applications, for different service environments of metal materials, only one or two corrosion tests may be required, and the components involved in the remaining corrosion tests can be removed, the spray assembly 3, salt spray assembly 5, solution tank 6, fixed sample holder 7 and rotating wheel 8 are all detachably connected to the housing 1. Operators can select appropriate components to place inside the housing 1 according to actual needs, and other components can be removed to achieve the switching of corrosion test functions.

[0039] From the perspective of spatial layout, for the specific placement of the above components, for example, the heating component 2 and the humidifying component 4 are located on the side wall of the housing 1, the spray component 3 is located on the upper wall of the housing 1, and the salt spray component 5, the solution tank 6, the fixed sample holder 7 and the rotating wheel 8 are all located on the bottom wall of the housing 1. The salt spray component 5 is located at the center of the bottom wall, the fixed sample holder 7 is located on one side of the salt spray component 5, and the rotating wheel 8 is located on the other side of the salt spray component 5.

[0040] Specifically, the structure of the humidification component 4 includes a water supply tank and an atomizer. The water supply tank, the atomizer, and the housing 1 are connected in sequence. Water in the water supply tank passes through the atomizer, thereby increasing the humidity of the space inside the housing 1.

[0041] To better control the humidity inside housing 1 and maintain it within the threshold range, the following two methods can be used:

[0042] The first method involves increasing airflow within the housing 1 and replacing some of the humid and hot gas inside the housing 1 with dry gas. The modular environmental simulation chamber also includes an air supply component 9, which is connected to the interior of the housing 1, and an exhaust vent is located on the housing 1. Thus, when the humidity inside the housing 1 exceeds a threshold, the air supply component 9 is activated. The air blown out by the air supply component 9 promotes airflow within the housing 1, facilitating the expulsion of humid and hot gas from the housing 1, thereby effectively reducing the humidity inside the housing 1.

[0043] For example, the air supply component 9 can be a louvered fan, which can automatically adjust the wind speed and the direction of the fan blades to ensure that the air supply intensity meets the humidity control requirements.

[0044] The second method accelerates the evaporation of water from the metal material and the shell 1, allowing the water vapor to be quickly discharged from the shell 1. The modular environmental simulation box also includes an exhaust component 10 installed inside the shell 1. An air inlet is opened on the shell 1. When the humidity inside the shell 1 exceeds the threshold, the exhaust component 10 is turned on. The exhaust component 10 uses high temperature to accelerate the evaporation of water vapor from the metal material and the shell 1, allowing the hot and humid gas to be quickly discharged from the shell 1, thereby effectively reducing the humidity inside the shell 1.

[0045] It should be noted that both of the above methods can be used simultaneously during the humidity adjustment process. This is because the opening of the exhaust fan 10 will cause the temperature inside the housing 1 to rise rapidly, which is not conducive to constant temperature control. By supplying dry, low-temperature air into the housing 1 through the air supply fan 9, the temperature inside the housing 1 can be reduced while the humidity is reduced.

[0046] To achieve water resource recycling, the aforementioned modular environmental simulation chamber also includes a water circulation component 11. Specifically, the water circulation component 11 includes a purifier, a cooler, and a circulating water pump connected in sequence. The inlet of the purifier is connected to the inside of the housing 1, and the outlet of the circulating water pump is connected to the inlets of the spray component 3, the humidification component 4, and the salt spray component 5, thus forming a water circulation path with the purifier, cooler, circulating water pump, and housing 1. In this way, the purifier can filter and purify the water discharged from the housing 1. The purified water is then supplied to the cooler for heat exchange, causing the purified water temperature to drop. The circulating water pump then provides the water flow power for reuse in environmental simulation.

[0047] To improve the installation stability of the rotating disk 8, the modular environmental simulation box also includes two flanges. One end of the rotating shaft of the rotating disk 8 passes through one of the flanges and is rotatably connected to it. The other end of the rotating shaft of the rotating disk 8 passes through the other flange and is rotatably connected to it. In this way, the flanges can provide stable support for both ends of the rotating shaft of the rotating disk 8, thereby improving the installation stability of the rotating disk 8.

[0048] In practical applications, corrosion tests are required on specimens 12 of different sizes. In order to ensure uniform corrosion of the upper and lower surfaces of the specimen or the entire cross-section of a special-shaped specimen, the structure of the fixed specimen holder 7 can be raised, lowered or flipped. Specifically, it includes a mounting plate and a lifting device. The mounting plate is set at an angle relative to the horizontal direction. A lifting ring is machined on one side of the specimen 12. The specimen 12 is placed on the mounting plate. The lifting end of the lifting device is connected to the lifting ring. During the spray corrosion of the specimen 12, the specimen 12 is lifted and flipped by the lifting device, so that the specimen 12 can be flipped without opening the shell 1.

[0049] For details regarding the structure of the mounting plate, please refer to [link / reference]. Figures 4a to 4c It consists of a first support surface, a flipping surface 72, and a second support surface arranged sequentially along the plane of the mounting plate. The first support surface, the flipping surface 72, and the second support surface are inclined downwards in sequence. During the spray corrosion test, the sample 12 is first placed on the first support surface, and the lifting ring of the sample 12 is placed on the side of the first support surface away from the second support surface. See [link to documentation]. Figure 4a When flipping is required, the side of sample 12 with the lifting ring is defined as the lifting side, and the side opposite the lifting side is defined as the flipping fulcrum side. The lifting device is activated, and the lifting side of sample 12 rotates around the flipping fulcrum side as its central axis. Then, the flipping fulcrum side stands on the flipping surface 72. (See [reference needed]). Figure 4b Under the influence of gravity, sample 12 will continue to tilt towards the second support surface and eventually rest on the second support surface, see [reference]. Figure 4c This allows sample 12 to be flipped.

[0050] It should be noted that the first and second support surfaces have essentially the same structure, both including a plate 71 and support strips 73 disposed on the upper surface of the plate 71. For example, multiple support strips 73 are provided on the upper surface of the plate 71, with gaps between them and arranged in parallel. The sample 12 is placed on the support strips 73. The support strips 73 are in the shape of a right trapezoid or a right triangle, with the hypotenuse of the trapezoid or triangle facing upwards. Each support strip 73 has a spray hole penetrating the right-angled side and the hypotenuse, facing towards the sample 12. Thus, water is sprayed onto the support strips 73 and flows into the spray holes, generating a water jet that sprays onto the lower surface of the sample 12. Simultaneously, through the arrangement of multiple support strips 73, water sprayed from the spray hole of the previous support strip 73 contacts the lower surface of the sample 12, flows along the lower surface of the plate 71, and then enters the spray hole of the next support strip 73 for further spraying.

[0051] For details regarding the structure of the injection orifice, please refer to [link / reference]. Figure 5 It includes a water inlet constant diameter hole 74, a necking hole 75, a low-pressure constant diameter hole 76, and an expanding hole 77 connected sequentially along the inclined side to the straight side. In this way, at the beginning of the spraying, when the sprayed water flows through the necking hole 75, it will form a jet and reduce the air pressure in the low-pressure constant diameter hole 76. During the spraying process, when the sprayed water flows to the outer wall of the support bar 73, it will block the water inlet constant diameter hole 74. Under the impetus of the low pressure in the low-pressure constant diameter hole 76, it will further flow through the necking hole 75, the low-pressure constant diameter hole 76, and the expanding hole 77, and enter the support bar 73 to contact the lower surface of the sample 12.

[0052] Considering that using only pressure may result in insufficient water power for spraying, the mounting plate also includes a water supply strip (not shown in the figure). The water supply strip corresponds one-to-one with the support strip 73. The spray water supply unit is connected to the spray hole through the water supply strip to provide sufficient power for the spray water to achieve spraying.

[0053] In order to improve the corrosion resistance of the housing 1 and extend its service life, the housing 1 is, for example, made of pure titanium or 316L stainless steel.

[0054] To achieve automatic control of the environmental simulation, the aforementioned modular environmental simulation box also includes a main controller and a heating controller, a spray controller, a humidification controller, a salt spray controller, a rotary controller, an air supply controller, and a drying controller connected to the main controller. It should be noted that the components for automatic control are not shown in the diagram. The main controller controls the opening and closing of the heating component 2 and its heating temperature through the heating controller. The main controller controls the opening and closing of the spray component 3 and its spray volume through the spray controller. The main controller controls the opening and closing of the humidification component 4 and its humidification flow rate through the humidification component 4. The main controller controls the opening and closing of the salt spray component 5 and its salt spray pressure through the salt spray controller. The main controller controls the start and stop of the rotary wheel and its rotation speed through the rotary controller. The main controller controls the air supply flow rate of the air supply component 9 through the air supply controller. The main controller controls the drying temperature of the exhaust component 10 through the drying controller.

[0055] In order to ensure that the temperature is within the threshold range during the test, the above-mentioned modular combined environmental simulation box also includes a temperature sensor. The temperature sensor collects the real-time temperature inside the shell 1 and transmits it to the main controller. The main controller determines whether the real-time temperature is within the threshold range. If the real-time temperature is not within the threshold range, the main controller sends an adjustment signal to the heating component 2. The heating component 2 adjusts the heating temperature according to the adjustment signal so that the real-time temperature inside the shell 1 is within the threshold range.

[0056] To ensure that the humidity remains within the threshold range during the test, the modular environmental simulation chamber also includes a humidity sensor. The humidity sensor collects the real-time humidity inside the housing 1 and transmits it to the main controller. The main controller determines whether the real-time humidity is within the threshold range. If the real-time humidity is not within the threshold range, the main controller sends an adjustment signal to the exhaust assembly 10 and the air supply assembly 9. The exhaust assembly 10 and the air supply assembly 9 adjust the real-time humidity according to the adjustment signal so that the real-time humidity inside the housing 1 is within the threshold range.

[0057] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A modular, combined environmental simulation chamber, characterized in that, The environment simulation chamber includes a heating assembly, a spray assembly, a humidification assembly, a salt spray assembly, a solution tank, a fixed sample holder, and a rotating wheel. The chamber has spray mode, immersion mode, and salt spray mode. In spray mode, the heating, spray, and humidification assemblies are activated, while the salt spray assembly and rotating wheel are removed, and the sample is placed on the fixed sample holder. In immersion mode, the heating and humidification assemblies are activated, while the spray and salt spray assemblies are removed, and the sample is placed on the rotating wheel, which rotates to periodically immerse the sample in the solution tank. In salt spray mode, the heating, humidification, and salt spray assemblies are activated, while the spray assembly and rotating wheel are removed, and the sample is placed on the fixed sample holder. The fixed sample holder includes a mounting plate and a lifting device. The sample is placed on the mounting plate, and the lifting end of the lifting device is connected to the sample. The mounting plate is divided into a first support surface, a flip surface, and a second support surface, arranged sequentially along the plane of the mounting plate. The first support surface, flip surface, and second support surface are sequentially inclined downwards for spray corrosion. During the experiment, the sample is first placed on the first support surface, with the lifting ring positioned on the side of the first support surface away from the second support surface. When flipping is required, the side of the sample with the lifting ring is defined as the lifting side, and the side opposite the lifting side is defined as the flipping fulcrum side. The lifting device is activated, and the lifting side of the sample rotates around the flipping fulcrum side as its central axis. Then, the flipping fulcrum side stands on the flipping surface, and under the influence of gravity, the sample continues to tilt towards the second support surface and finally rests on it, thus achieving the flipping of the sample. Both the first and second support surfaces include... The plate body and the support strips on the upper surface of the plate body are arranged in parallel with gaps between them. The sample is placed on the support strips. The support strips are in the shape of a right trapezoid or a right triangle, with the hypotenuse of the right trapezoid or the hypotenuse of the right triangle facing upwards. The support strips are provided with spray holes that pass through the right-angled side and the hypotenuse and face the sample. The spray water is sprayed from the spray hole of the previous support strip and contacts the lower surface of the sample, flows along the lower surface of the plate body, and then enters the spray hole of the next support strip.

2. The modular combined environmental simulation box according to claim 1, characterized in that, The heating component is an infrared lamp.

3. The modular combined environmental simulation box according to claim 1, characterized in that, The heating component is a bathroom heater lamp.

4. The modular combined environmental simulation box according to claim 1, characterized in that, It also includes a water circulation component.

5. The modular combined environmental simulation box according to claim 4, characterized in that, The water circulation assembly includes a purifier, a cooler, and a circulating water pump connected in sequence.

6. The modular combined environmental simulation box according to claim 5, characterized in that, The outlet of the circulating water pump is connected to the inlet of the spray assembly, the inlet of the humidification assembly, and the inlet of the salt spray assembly.

7. The modular combined environmental simulation box according to claim 1, characterized in that, It also includes a flange, and the rotating shaft of the rotating disk passes through the flange and is rotatably connected to the flange.

8. The modular combined environmental simulation box according to claim 7, characterized in that, The number of flanges is two, namely the first flange and the second flange.

9. The modular combined environmental simulation box according to claim 8, characterized in that, One end of the rotating shaft of the rotating wheel passes through the first flange and is rotatably connected to the flange, and the other end of the rotating shaft of the rotating wheel passes through the second flange and is rotatably connected to the flange.

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