Oxidation apparatus and use thereof

Abstract

The application relates to the technical field of experimental equipment, and discloses an oxidation experiment device and application thereof. The oxidation experiment device comprises a transparent environment cabin, a transition cabin, a heat insulation limiting piece, a plurality of transparent sample tubes, a heating device and a gas supply device, the transparent environment cabin, the transition cabin and the heat insulation limiting piece are coaxially arranged, one end of the transparent environment cabin is connected with one end of the transition cabin, the heat insulation limiting piece is arranged in the transparent environment cabin and located close to the transition cabin, the edge of the heat insulation limiting piece is attached to the inner wall of the transparent environment cabin, a plurality of first cabin inlets matched with the shape and size of the transparent sample tubes are arranged on the heat insulation limiting piece, one end of the transition cabin away from the transparent environment cabin is provided with a cabin sealing wall, the cabin sealing wall is opposite to the heat insulation limiting piece, a plurality of second cabin inlets are arranged on the cabin sealing wall, and the plurality of first cabin inlets and the plurality of second cabin inlets are in one-to-one correspondence. The oxidation experiment device can realize multi-channel sampling, the experimental atmosphere in the environment cabin is not damaged when the sample is taken out, and the accuracy of experimental data is ensured.

Description

Technical Field

[0001] This invention relates to the field of experimental equipment technology, and more specifically, to an oxidation experimental apparatus and its application. Background Technology

[0002] High-temperature oxidation resistance is an important performance indicator of heat-resistant alloys, and its quality determines whether the alloy can resist the corrosion of the base material by the external environment at high temperatures. While high-temperature oxidation performance testing in a conventional air environment does not require sophisticated experimental equipment, conventional equipment is insufficient for other atmospheric environments, such as O2, CO2, CO, SO2, CH4, water vapor, or mixtures of these.

[0003] First, it is difficult to introduce the above atmosphere into the high-temperature furnace and ensure that no air is mixed in. Second, the gases in the above atmosphere may corrode the components of the high-temperature furnace and affect its service life. Finally, it is difficult to ensure that the sample can be removed without destroying the original experimental atmosphere when the experiment is interrupted.

[0004] In view of this, the present invention is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide an oxidation experimental apparatus and its application in scientific experiments.

[0006] This invention is implemented as follows:

[0007] In a first aspect, the present invention provides an oxidation experimental apparatus, comprising:

[0008] The transparent environment chamber, transition chamber, heat insulation limiting component, multiple transparent sample tubes, heating device and gas supply device are arranged coaxially.

[0009] One end of the transparent environment chamber is connected to one end of the transition chamber. The heat insulation limiting component is located inside the transparent environment chamber near the transition chamber. The edge of the heat insulation limiting component is in contact with the inner wall of the transparent environment chamber. The heat insulation limiting component is provided with multiple first inlets with shapes and sizes matching the transparent sample tubes. The end of the transition chamber away from the transparent environment chamber has a sealing wall. The sealing wall is opposite to the heat insulation limiting component. The sealing wall is provided with multiple second inlets. The multiple first inlets and the multiple second inlets correspond one-to-one.

[0010] Each transparent sample tube has an opening at one end and a bottom at the other. A connecting port is provided on the side wall near the bottom of the tube to allow the gas entering the transparent environment chamber to enter the transparent sample tube and come into contact with the experimental sample inside.

[0011] The heating device is used to heat the transparent environmental chamber;

[0012] The gas supply device has a gas input pipe that is connected to the transparent environmental chamber;

[0013] During the experiment, one or more transparent sample tubes carrying the experimental samples are inserted into the transparent environmental chamber through the second inlet and the first inlet in sequence. The transparent environmental chamber is heated by a heating device, and gas is introduced into the transparent environmental chamber through a gas supply device to carry out the oxidation experiment. After the experiment is completed, the transparent sample tubes are removed.

[0014] In an optional embodiment, the oxidation experimental apparatus further includes multiple boat-shaped crucibles, each boat-shaped crucible being placed inside a transparent sample tube near the communication port after holding the experimental sample.

[0015] In an optional embodiment, the boat-shaped crucible is provided with a crucible lid, and the crucible lid is provided with a vent opening.

[0016] In an optional embodiment, a rubber stopper is inserted into the opening of the transparent sample tube.

[0017] In an optional embodiment, the oxidation experimental apparatus further includes two supporting flanges, a heat insulation component, and a sealing cover;

[0018] The two support flanges are the first support flange and the second support flange. The two ends of the transparent environment chamber are respectively set in the two support flanges. A first sealing ring is provided between the inner wall of each support flange and the outer wall of the transparent environment chamber.

[0019] The first support flange is far away from the heat insulation limiting element relative to the second support flange. The sealing cover is connected to the first support flange, and a second sealing ring is provided between the sealing cover and the first support flange.

[0020] One end of the transition chamber has a sealing flange, a second support flange is connected to the sealing flange, and a third sealing ring is provided between the second support flange and the sealing flange.

[0021] A heat insulation component is installed near the sealing cover inside the transparent environment chamber, with the edge of the heat insulation component attached to the inner wall of the transparent environment chamber.

[0022] In an optional embodiment, a first air inlet is provided on the sealing cover, and a second air inlet is provided on the heat insulation component. The first air inlet is connected to the air supply device.

[0023] Optionally, the gas supply device includes multiple gas cylinders containing different gases and a gas mixer. Each gas cylinder is connected to a gas pipe, each gas pipe is equipped with a flow valve, and the end of each gas pipe away from the gas cylinder is connected to the gas mixer. The gas mixer is connected to the first gas inlet through a gas input pipe.

[0024] In an optional embodiment, the support flange, sealing cover, and transition chamber are made of heat-resistant austenitic stainless steel.

[0025] Alternatively, the heat-resistant austenitic stainless steel may be one of 304 stainless steel, 316 stainless steel, and 310S stainless steel.

[0026] In an optional embodiment, the heating device includes a heating resistance wire disposed on the outer wall of the transparent environmental chamber;

[0027] Optionally, the heating device also includes a thermocouple for detecting the temperature inside the environmental chamber, and a temperature controller configured to receive the temperature signal from the thermocouple and adjust the heating temperature of the heating resistance wire according to the temperature signal.

[0028] In an optional implementation, the transparent environmental chamber, transparent sample tube, and / or boat-shaped crucible are made of high-temperature resistant glass.

[0029] Optionally, the high-temperature resistant glass is quartz glass.

[0030] Secondly, the present invention provides the application of the oxidation experimental apparatus as described in any of the foregoing embodiments in scientific experiments.

[0031] The present invention has the following beneficial effects:

[0032] The multiple inlet ports enable multi-channel sample introduction, allowing for efficient testing of sample oxidation performance; the transition chamber design ensures that the experimental atmosphere in the environmental chamber is not disturbed when samples are removed, guaranteeing the accuracy of experimental data. Attached Figure Description

[0033] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the oxidation experimental apparatus provided in an embodiment of the present invention;

[0035] Figure 2 This is a structural schematic diagram of the sealing cap, where the left image is the front view and the right image is the right view.

[0036] Figure 3 This is a structural schematic diagram of the first supporting flange, where the left image is the front view and the right image is the right view.

[0037] Figure 4 This is a structural schematic diagram of the second support flange, where the left image is the front view and the right image is the right view.

[0038] Figure 5This is a schematic diagram of the thermal insulation component, where the left image is the front view and the right image is the right view.

[0039] Figure 6 This is a schematic diagram of the structure of the heat insulation limiting component, where the left figure is the front view and the right figure is the right view;

[0040] Figure 7 This is a structural schematic diagram of the transition cabin, with the left image being the front view and the right image being the right view.

[0041] Figure 8 This is a schematic diagram of the structure of a transparent sample tube;

[0042] Figure 9 This is a schematic diagram of a boat-shaped crucible. The upper left image is the main view, the upper right image is the right view, and the lower image is the top view.

[0043] Figure 10 This is a schematic diagram of the crucible lid. The upper part of the diagram is the front view, and the lower part is the top view.

[0044] Icons: 100-Oxidation experimental apparatus; 101-Sealing cap; 102-First support flange; 103-Insulation component; 104-Transparent environmental chamber; 105-Insulation limiting component; 106-Second support flange; 107-Transition chamber; 108-First air inlet; 109-Second air inlet; 110-First inlet; 111-Sealing wall; 112-Second inlet; 113-Sealing flange; 114-Exhaust pipe; 201-Boat-shaped crucible; 202-Transparent sample tube; 203-Rubber stopper; 204-Crucible lid; 205-Vent opening; 206-Connecting port; 301-Temperature controller; 302-Heating resistance wire; 401-Gas cylinder; 402-Gas mixer. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Where specific conditions are not specified in the embodiments, conventional conditions or conditions recommended by the manufacturer shall apply. Reagents or instruments whose manufacturers are not specified are all conventional products that can be purchased commercially.

[0046] The features and performance of the present invention will be further described in detail below with reference to embodiments.

[0047] like Figure 1 As shown, the oxidation experimental apparatus 100 provided in this embodiment of the invention includes:

[0048] The transparent environment chamber 104, the transition chamber 107, the heat insulation limiting component 105, multiple transparent sample tubes 202, the heating device and the gas supply device are arranged coaxially.

[0049] like Figure 1 , 3 4, 6 and Figure 7 As shown, one end of the transparent environment chamber 104 is connected to one end of the transition chamber 107. The heat insulation limiting member 105 is disposed inside the transparent environment chamber 104 near the transition chamber 107. The edge of the heat insulation limiting member 105 is in contact with the inner wall of the transparent environment chamber 104. The heat insulation limiting member 105 is provided with a plurality of first inlets 110 whose shape and size match the transparent sample tube 202. The end of the transition chamber 107 away from the transparent environment chamber 104 has a sealing wall 111. The sealing wall 111 is opposite to the heat insulation limiting member 105. The sealing wall 111 is provided with a plurality of second inlets 112. The plurality of first inlets 110 and the plurality of second inlets 112 correspond one-to-one.

[0050] Each transparent sample tube 202 has an opening at one end and a bottom at the other end. A connecting port 206 is provided on the side wall near the bottom of the tube to allow the gas entering the transparent environment chamber 104 to enter the transparent sample tube 202 and contact the experimental sample inside.

[0051] The heating device is used to heat the transparent environmental chamber 104;

[0052] The gas supply device has a gas input pipe, which is connected to the transparent environment chamber 104.

[0053] During the experiment, one or more transparent sample tubes 202, each containing an experimental sample and with its opening sealed, are sequentially inserted into a transparent environmental chamber 104 through the second inlet 112 and the first inlet 110. The transparent environmental chamber 104 is heated by a heating device, and gas is introduced into the transparent environmental chamber 104 through a gas supply device to conduct an oxidation experiment. After the experiment, the transparent sample tubes 202 are removed. The position of the transparent sample tubes 202 inserted into the transparent environmental chamber 104 during the experiment is shown in position ①, and the removal process is shown in position ②.

[0054] The specific configuration of the multiple first inlets 110 and multiple second inlets 112 of this device enables simultaneous experiments on multiple samples. During the experiment, multiple samples are placed in different transparent sample tubes 202 and enter the environmental chamber through different first inlets 110 and second inlets 112. The samples do not interfere with each other during the experiment, ensuring that the experimental environment is not contaminated, and the high-temperature oxidation experiment is completed efficiently and with accurate experimental data. The specific configuration of the transition chamber 107 ensures that the original experimental atmosphere is not disturbed when the sample is removed during the experiment. The transparent environmental chamber 104 and the transparent sample tubes 202 are transparent, which facilitates the observation of the experimental situation inside the device, and any abnormalities can be dealt with in a timely manner.

[0055] In a preferred embodiment, such as Figure 6 and Figure 7 As shown, the number of first inlet 110 and second inlet 112 is not less than 10, and the number of corresponding transparent sample tubes 202 is not less than 10, so that more than 10 samples can be tested at the same time.

[0056] Preferably, such as Figure 1 and Figure 8 As shown, a rubber stopper 203 is inserted into the opening of the transparent sample tube 202.

[0057] During the experiment, after placing the sample in the transparent sample tube 202, the tube opening is sealed with a rubber stopper 203 to prevent external air from entering the transparent sample tube 202 and affecting the experiment. Since the diameter of the portion of the rubber stopper 203 not inserted into the tube opening is relatively large, extending the transparent sample tube 202 further into the transparent environmental chamber 104 until the rubber stopper 203 touches the second inlet 112 can further effectively cover any tiny gaps that may exist between the second inlet 112 and the transparent sample tube 202, further improving the device's sealing performance.

[0058] Furthermore, such as Figure 1 and Figure 9 As shown, the oxidation experimental apparatus 100 also includes multiple boat-shaped crucibles 201, each boat-shaped crucible 201 being placed inside the transparent sample tube 202 near the communication port 206 after holding the experimental sample.

[0059] Furthermore, such as Figure 10 As shown, a crucible lid 204 is provided on the boat-shaped crucible 201, and a venting opening 205 is provided on the crucible lid 204.

[0060] During the experiment, the experimental sample is placed in the boat-shaped crucible 201 and the crucible lid 204 is closed. The gas in the transparent environment chamber 104 can enter the boat-shaped crucible 201 through the vent 205 and come into contact with the sample. Then, the boat-shaped crucible 201 is placed in the transparent sample tube 202, and a rubber stopper 203 is plugged at the tube opening. The transparent sample tube 202 is then inserted into the transparent environment chamber 104.

[0061] Furthermore, the transparent environmental chamber 104, the transparent sample tube 202, and / or the boat-shaped crucible 201 are made of high-temperature resistant glass; optionally, the high-temperature resistant glass is quartz glass.

[0062] Preferably, such as Figures 1-5 As shown, the oxidation experimental apparatus 100 also includes two supporting flanges, a heat insulation component 103, and a sealing cover 101;

[0063] The two support flanges are the first support flange 102 and the second support flange 106. The two opposite ends of the transparent environment chamber 104 are respectively set in the two support flanges. A first sealing ring is provided between the inner wall of each support flange and the outer wall of the transparent environment chamber 104.

[0064] The first support flange 102 is far away from the heat insulation limiting member 105 relative to the second support flange 106. The sealing cover 101 is connected to the first support flange 102, and a second sealing ring is provided between the sealing cover 101 and the first support flange 102.

[0065] One end of the transition chamber 107 has a sealing flange 113, a second support flange 106 is connected to the sealing flange 113, and a third sealing ring is provided between the second support flange 106 and the sealing flange 113.

[0066] A heat insulation component 103 is provided inside the transparent environment chamber 104 near the sealing cover 101, and the edge of the heat insulation component 103 is attached to the inner wall of the transparent environment chamber 104.

[0067] Sealing rings are provided between the support flange and the transparent environmental chamber 104, between the first support flange 102 and the sealing cover 101, and between the second support flange 106 and the heat insulation limiting member 105 to improve the airtightness of the device. Furthermore, all sealing rings used are O-rings. Since sealing rings are usually made of rubber, they are prone to aging under prolonged high-temperature conditions. Therefore, these sealing rings are positioned outside the heat insulation member 103 and the heat insulation limiting member 105. After the heat insulation member 103 and the heat insulation limiting member 105 block most of the heat, the sealing rings are less affected by temperature.

[0068] Furthermore, in order to better prevent the sealing ring from aging, water cooling can be installed at the connection between the environmental chamber and the first support flange 102 and the second support flange 106.

[0069] Furthermore, the first support flange 102 and the sealing cover 101 are connected by bolts, and the second support flange 106 and the sealing flange 113 are also connected by bolts.

[0070] Furthermore, the supporting flange, sealing cover 101, and transition chamber 107 are made of heat-resistant austenitic stainless steel.

[0071] Alternatively, the heat-resistant austenitic stainless steel may be one of 304 stainless steel, 316 stainless steel, and 310S stainless steel.

[0072] Furthermore, such as Figure 1 and Figure 5 As shown, the sealing cover 101 is provided with a first air inlet 108, and the heat insulation component 103 is provided with a second air inlet 109. The first air inlet 108 is connected to the air supply device.

[0073] Optionally, such as Figure 1As shown, the gas supply device includes multiple gas cylinders 401 containing different gases and a gas mixer 402. Each gas cylinder 401 is connected to a gas pipe, and each gas pipe is equipped with a flow valve. The end of each gas pipe away from the gas cylinder 401 is connected to the gas mixer 402. The gas mixer 402 is connected to the first gas inlet 108 through a gas input pipe.

[0074] Multiple gas cylinders 401 can hold gases such as O2, CO2, CO, SO2, CH4, or water vapor. Depending on the experimental requirements, the gas cylinder 401 containing the corresponding gas is opened, and the appropriate flow rate is adjusted to introduce the gas into the mixer 402. After thorough mixing, the gas enters the transparent environmental chamber 104 through the first inlet 108 and the second inlet 109. Therefore, the specific configuration of the gas supply device allows for atmosphere control, enabling the device to perform oxidation performance tests under various atmospheric conditions.

[0075] Furthermore, such as Figure 7 As shown, the bulkhead of the transition chamber 107 is connected to an exhaust pipe 114 for discharging gases from the chamber. This is especially important if the experimental gases contain toxic gases such as SO2 or NO. x The gas is then connected to the gas washing bottle 401 through the exhaust pipe 114, where it is neutralized with alkali before being released into the air, thus preventing the direct release of toxic gases and avoiding harm to laboratory personnel and the environment.

[0076] Furthermore, such as Figure 1 As shown, the heating device includes a heating resistance wire 302, which is disposed on the outer wall of the transparent environmental chamber 104, specifically between the heat insulation component 103 and the heat insulation limiting component 105, to prevent high temperature from affecting the sealing ring.

[0077] Optionally, the heating device also includes a thermocouple for detecting the temperature inside the environmental chamber, and a temperature controller 301. The temperature controller 301 is configured to receive the temperature signal from the thermocouple and adjust the heating temperature of the heating resistance wire 302 according to the temperature signal. The specific configuration of the thermocouple and the temperature controller 301 enables the heating temperature of the heating device to be adjustable, so that the internal temperature of the transparent environmental chamber 104 is always within an optimal range.

[0078] Furthermore, the temperature controller 301 may also have a display screen that shows the temperature information fed back by the thermocouple, and the experimenter can manually adjust the heating temperature of the heating resistance wire 302 by using the displayed temperature information.

[0079] The oxidation experimental apparatus 100 provided in this embodiment is used as follows:

[0080] Before the experiment begins, push the transparent sample tube 202 into the transparent environmental chamber as shown in ①, turn on the cooling water to cool the support flange; set up the heating system to heat the sample; introduce the experimental gas into the transparent environmental chamber 104 through the gas supply device; and start the experiment after the temperature reaches the set temperature.

[0081] If a sample needs to be removed during the experiment, pull out the transparent sample tube 202 to the position shown in ②. This pulling-out process ensures that the atmosphere inside the transparent environment chamber is not damaged and that the boat-shaped crucible 201 can be removed.

[0082] The present invention also provides the application of the oxidation experimental apparatus 100 in scientific experiments.

[0083] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An oxidation experimental apparatus, characterized in that, include: The transparent environment chamber, the transition chamber, the heat insulation limiting component, multiple transparent sample tubes, the heating device, and the gas supply device are coaxially arranged. One end of the transparent environment chamber is connected to one end of the transition chamber. The heat insulation limiting member is disposed inside the transparent environment chamber near the transition chamber. The edge of the heat insulation limiting member is in contact with the inner wall of the transparent environment chamber. The heat insulation limiting member is provided with a plurality of first inlets with shapes and sizes matching the transparent sample tube. The end of the transition chamber away from the transparent environment chamber has a sealing wall. The sealing wall is opposite to the heat insulation limiting member. The sealing wall is provided with a plurality of second inlets. The plurality of first inlets and the plurality of second inlets correspond one-to-one. Each of the transparent sample tubes has an opening at one end and a bottom at the other end. A communication port is provided on the side wall near the bottom of the tube to allow the gas entering the transparent environment chamber to enter the transparent sample tube and contact the experimental sample inside. The heating device is used to heat the transparent environmental chamber; The gas supply device has a gas input pipe, which is connected to the transparent environmental chamber. If a sample needs to be removed during the experiment, the transparent sample tube is pulled out to the connecting port of the transparent sample tube and enters the transition chamber, with the end of the transparent sample tube still inserted at the first inlet of the heat insulation limiting member.

2. The oxidation experimental apparatus according to claim 1, characterized in that, The oxidation experimental apparatus also includes multiple boat-shaped crucibles, each of which is used to hold the experimental sample and is placed inside the transparent sample tube near the communication port.

3. The oxidation experimental apparatus according to claim 2, characterized in that, The boat-shaped crucible is provided with a crucible lid, and the crucible lid is provided with a vent opening.

4. The oxidation experimental apparatus according to claim 2, characterized in that, The transparent environmental chamber, the transparent sample tube, and / or the boat-shaped crucible are made of high-temperature resistant glass.

5. The oxidation experimental apparatus according to claim 4, characterized in that, The high-temperature resistant glass is quartz glass.

6. The oxidation experimental apparatus according to claim 1, characterized in that, A rubber stopper is inserted into the opening of the transparent sample tube.

7. The oxidation experimental apparatus according to claim 1, characterized in that, The oxidation experimental apparatus also includes two supporting flanges, heat insulation components, and a sealing cover; The two supporting flanges are a first supporting flange and a second supporting flange. The two opposite ends of the transparent environment chamber are respectively set in the two supporting flanges. A first sealing ring is provided between the inner wall of each supporting flange and the outer wall of the transparent environment chamber. The first support flange is located away from the heat insulation limiting member relative to the second support flange, the sealing cover is connected to the first support flange, and a second sealing ring is provided between the sealing cover and the first support flange; One end of the transition chamber has a sealing flange, the second support flange is connected to the sealing flange, and a third sealing ring is provided between the second support flange and the sealing flange; A heat insulation component is installed inside the transparent environment chamber near the sealing cover, and the edge of the heat insulation component is in contact with the inner wall of the transparent environment chamber.

8. The oxidation experimental apparatus according to claim 7, characterized in that, The sealing cover is provided with a first air inlet, and the heat insulation component is provided with a second air inlet. The first air inlet is connected to the air supply device.

9. The oxidation experimental apparatus according to claim 8, characterized in that, The gas supply device includes multiple gas cylinders containing different gases and a gas mixer. Each gas cylinder is connected to a gas pipe, and each gas pipe is equipped with a flow valve. The end of each gas pipe away from the gas cylinder is connected to the gas mixer. The gas mixer is connected to the first gas inlet through the gas input pipe.

10. The oxidation experimental apparatus according to claim 7, characterized in that, The supporting flange, the sealing cover, and the transition chamber are made of heat-resistant austenitic stainless steel.

11. The oxidation experimental apparatus according to claim 10, characterized in that, The heat-resistant austenitic stainless steel is one of 304 stainless steel, 316 stainless steel and 310S stainless steel.

12. The oxidation experimental apparatus according to claim 1, characterized in that, The heating device includes a heating resistance wire, which is disposed on the outer wall of the transparent environmental chamber.

13. The oxidation experimental apparatus according to claim 12, characterized in that, The heating device also includes a thermocouple for detecting the temperature inside the environmental chamber, and a temperature controller configured to receive the temperature signal from the thermocouple and adjust the heating temperature of the heating resistance wire according to the temperature signal.

14. The application of the oxidation experimental apparatus as described in any one of claims 1 to 13 in scientific experiments.

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