Hydrogen-oxygen recombination device

Abstract

The application discloses a hydrogen-oxygen compound device, which comprises a first pipeline for conveying hydrogen, a second pipeline for conveying oxygen, a buffer part in which hydrogen conveyed by the first pipeline and oxygen conveyed by the second pipeline are mixed to form mixed gas, and a synthesis part connected with the buffer part, in which the mixed gas flowing out of the outlet of the buffer part undergoes a hydrogen-oxygen compound reaction. By arranging the buffer part, the hydrogen and the oxygen can be mixed in the buffer part, so that the instability of system pressure can be avoided. Moreover, after being mixed in the buffer part, the hydrogen and the oxygen enter the synthesis part to undergo the hydrogen-oxygen reaction, so that the reaction efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of hydrogen-oxygen recombination devices, and more particularly to a hydrogen-oxygen recombination device. Background Technology

[0002] The hydrogen-oxygen complex reaction, also known as the hydrogen combustion reaction, is a chemical reaction in which hydrogen and oxygen react to produce water. Its chemical reaction equation is 2H2 + O2 → 2H2O.

[0003] Currently, hydrogen-oxygen recombination devices suffer from numerous problems, including low gas recombination efficiency and difficulty in rapid sampling and analysis. Summary of the Invention

[0004] To address the aforementioned technical problems, this application provides a hydrogen-oxygen recombination device that can improve the efficiency of hydrogen-oxygen recombination, thereby enabling faster sampling.

[0005] This application is achieved through the following technical solution.

[0006] This application provides a hydrogen-oxygen recombination device, comprising: a first pipeline for conveying hydrogen; a second pipeline for conveying oxygen; a buffer section having an outlet, wherein the hydrogen conveyed by the first pipeline and the oxygen conveyed by the second pipeline are mixed in the buffer section to form a mixed gas; and a synthesis section connected to the buffer section, wherein the mixed gas flowing out through the outlet of the buffer section undergoes a hydrogen-oxygen recombination reaction in the synthesis section.

[0007] By incorporating a buffer section, hydrogen and oxygen can be uniformly mixed within the buffer section, preventing system pressure instability. Furthermore, the reaction efficiency is improved by mixing the gases inside the buffer section before they enter the synthesis section for the hydrogen-oxygen reaction.

[0008] In some embodiments of this application, the hydrogen-oxygen recombination device further includes a main pipeline, which is connected to a first pipeline and a buffer section respectively, and the hydrogen transported by the first pipeline enters the buffer section via the main pipeline.

[0009] The hydrogen transported by the first pipeline enters the buffer section through the main pipeline. This provides a relatively long pipeline for hydrogen, which is beneficial for controlling the amount and flow rate of hydrogen, thereby reducing the occurrence of hydrogen explosions and contributing to the stability of the hydrogen-oxygen recombination reaction.

[0010] In some embodiments of this application, a second conduit is connected to a buffer section to deliver oxygen to the buffer section.

[0011] The second pipeline is connected to the buffer section, allowing oxygen to be delivered directly to the buffer section without passing through the main pipeline. This design prevents hydrogen and oxygen from reacting in the main pipeline.

[0012] In some embodiments of this application, the buffer section has an intermediate position in the flow direction of the mixed gas, and the second pipeline is connected to the intermediate position.

[0013] The second pipeline is connected in the middle position, allowing oxygen to be introduced from the middle of the buffer section. This facilitates thorough mixing with hydrogen, thereby improving the efficiency of the hydrogen-oxygen recombination reaction.

[0014] In some embodiments of this application, the hydrogen-oxygen recombination device further includes a third pipeline connected to the main pipeline for conveying inert gas.

[0015] Inert gas can be introduced into the main pipeline to provide gas protection for hydrogen, ensuring that the hydrogen concentration is controlled within a safe range. The inert gas, entering the buffer tank, mixes thoroughly with the hydrogen and oxygen, maintaining both hydrogen and oxygen concentrations within safe limits, preventing hydrogen explosions, and avoiding system pressure instability.

[0016] In some embodiments of this application, a catalyst is disposed inside the synthesis section; the hydrogen-oxygen recombination device also includes a heating device and a temperature control module, the heating device being disposed around the outside of the synthesis section, and the temperature control module being used to control the temperature of the synthesis section to match the active temperature of the catalyst.

[0017] The heating device can heat the synthesis section, and the heating temperature of the synthesis section can be controlled by the temperature control module to maintain the temperature of the synthesis section at a level that matches the active temperature of the catalyst. Catalysts generally have an active temperature range. Within this range, the catalyst exhibits high activity, and the design of this application is beneficial for maximizing the catalytic effect of the catalyst.

[0018] In some embodiments of this application, a hydrogen-oxygen recombination device is provided, including a hydrogen flow meter, an oxygen flow meter, and an inert gas flow meter. The hydrogen flow meter is connected between a hydrogen source and a first pipeline to record the flow rate of hydrogen intake, the oxygen flow meter is connected between an oxygen source and a second pipeline to record the flow rate of oxygen intake, and the inert gas flow meter is connected between an inert gas source and a third pipeline to record the flow rate of inert gas intake.

[0019] Hydrogen flow meters, oxygen flow meters, and inert gas flow meters can record the flow rates of hydrogen, oxygen, and inert gases respectively, thereby allowing for adaptive adjustment of the inlet flow rates of hydrogen, oxygen, and inert gases based on settings or reaction conditions.

[0020] In some embodiments of this application, the hydrogen-oxygen recombination device further includes a pressure sensor for sensing the intake pressure of the main pipeline; the intake pressure of the main pipeline is less than or equal to 0.01 MPa, and / or the diameter of the main pipeline is 0.2 inches to 0.3 inches.

[0021] Setting up a pressure sensor allows for real-time monitoring of the intake pressure in the main pipeline, enabling adjustments to the intake flow and pressure to ensure the stable operation of the hydrogen-oxygen reaction.

[0022] In this application, by setting and limiting the intake pressure and diameter of the main pipeline, the intake flow rate and speed of hydrogen can be controlled, which helps to control the hydrogen concentration within a safe range and to control the intake amount of hydrogen within the range required for the hydrogen-oxygen recombination reaction, thereby achieving the hydrogen-oxygen recombination reaction while avoiding hydrogen explosion.

[0023] In some embodiments of this application, the volume of the buffer section is 100ml-180ml; and / or along the flow direction of the mixed gas, the length of the synthesis section is 10cm-18cm, and the diameter of the synthesis section is 5mm-10mm.

[0024] In this application, the buffer tank is relatively small in size, making it easy to move and improving the overall flexibility of the hydrogen-oxygen recombination device.

[0025] In this application, the synthesis section is relatively small in size, making it easy to move and improving the overall flexibility of the hydrogen-oxygen recombination device. The limited diameter and length of the synthesis section facilitate complete hydrogen-oxygen recombination, thereby increasing the conversion rate of the hydrogen-oxygen recombination reaction.

[0026] In some embodiments of this application, the hydrogen-oxygen recombination device includes a sampling section connected to the outlet of the synthesis section.

[0027] The sampling section is connected to the outlet of the synthesis section. Water generated in the synthesis section can flow into the sampling section through the outlet, and the water obtained in the sampling section can be used for analysis. In this application, the reaction efficiency in the synthesis section is high, and the water generation efficiency is also high, which can meet the sampling requirements. The hydrogen-oxygen recombination device of this application is entirely movable and can be applied to various sampling scenarios, thus expanding its application scope. Attached Figure Description

[0028] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0029] Figure 1 This is a schematic diagram of the structure of a hydrogen-oxygen recombination device provided in some embodiments of this application.

[0030] Explanation of reference numerals in the attached figures

[0031] 1. Hydrogen-oxygen recombining device; 10. Main pipeline; 11. First pipeline; 110. Exhaust valve; 111. First valve; 112. Hydrogen flow meter; 12. Second pipeline; 121. Second valve; 122. Oxygen flow meter; 123. Third valve; 13. Third pipeline; 131. Fourth valve; 132. Helium flow meter; 14. Fourth pipeline; 15. Pressure sensor; 20. Buffer section; 201. Intermediate position; 30. Synthesis section; 40. Heating device; 50. Sampling section; X. Flow direction of mixed gas. Detailed Implementation

[0032] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0033] The hydrogen-oxygen complex reaction, also known as the hydrogen combustion reaction, is a chemical reaction in which hydrogen and oxygen react to produce water. Its chemical reaction equation is 2H2 + O2 → 2H2O.

[0034] Currently, hydrogen-oxygen recombination devices suffer from numerous problems, including low gas recombination efficiency and difficulty in rapid sampling and analysis.

[0035] To address the aforementioned technical problems, this application provides a hydrogen-oxygen recombination device that can improve the efficiency of hydrogen-oxygen recombination, thereby enabling faster sampling.

[0036] The hydrogen-oxygen recombination device provided in this application includes: a first pipeline for conveying hydrogen; a second pipeline for conveying oxygen; a buffer section in which the hydrogen conveyed by the first pipeline and the oxygen conveyed by the second pipeline are mixed to form a mixed gas; and a synthesis section connected to the buffer section, in which the mixed gas flowing out of the outlet of the buffer section undergoes a hydrogen-oxygen recombination reaction.

[0037] By incorporating a buffer section, hydrogen and oxygen can be mixed within the buffer section, reducing the occurrence of hydrogen explosions and preventing system pressure instability. Furthermore, mixing within the buffer section before entering the synthesis section for the hydrogen-oxygen reaction also improves reaction efficiency.

[0038] Figure 1 The diagram shows the structure of a hydrogen-oxygen recombination device provided in some embodiments of this application. Figure 1 As shown in this application, the hydrogen-oxygen recombination device 1 may include a first pipeline 11, a second pipeline 12, a buffer section 20, and a synthesis section 30. Hydrogen and oxygen can be mixed into a mixed gas in the buffer section 20, and then the mixed gas enters the synthesis section 30 to carry out the hydrogen-oxygen recombination reaction.

[0039] In this application, the first pipeline 11 can be used to transport hydrogen. For example, the first pipeline 11 can be connected at one end to a hydrogen source and at the other end to an outlet for supplying hydrogen to the buffer section 20.

[0040] In some embodiments of this application, such as Figure 1 As shown, the hydrogen-oxygen recombination device 1 may further include a main pipeline 10, which can be connected to the first pipeline 11 and the buffer section 20 respectively. That is, the other end of the first pipeline 11 is connected to the main pipeline 10, and the transported hydrogen can enter the buffer section 20 through the main pipeline 10. However, this disclosure is not limited to this. In some embodiments, the first pipeline 11 may also be directly connected to the buffer section or connected to other pipelines, as long as hydrogen can be transported to the buffer section.

[0041] In this application, the hydrogen transported by the first pipeline 11 enters the buffer section 20 through the main pipeline 10, which provides a relatively long transport pipeline for hydrogen, which is beneficial to control the intake volume and flow rate of hydrogen, thereby reducing the occurrence of hydrogen explosion and contributing to the stability of hydrogen-oxygen recombination reaction.

[0042] In this application, the second conduit 12 can be used to deliver oxygen. For example, the second conduit 12 can be connected at one end to an oxygen source and at the other end to deliver oxygen to the buffer section 20.

[0043] In some embodiments of this application, the second pipeline 12 can be connected to the buffer section 20 to deliver oxygen to the buffer section, that is, the other end of the second pipeline 12 is connected to the buffer section 20, and the delivered oxygen can directly enter the buffer section 20 to carry out the hydrogen-oxygen recombination reaction.

[0044] In this application, the second pipeline 12 is connected to the buffer section 20, and oxygen can be directly supplied to the buffer section 20 without passing through the main pipeline 10. This arrangement can prevent hydrogen and oxygen from reacting in the main pipeline and can also prevent hydrogen explosion.

[0045] In some embodiments of this application, the buffer section 20 has an intermediate position 201 in the flow direction X of the mixed gas, and the second pipeline 12 can be connected to the intermediate position 201. In this application, the so-called intermediate position 201 is the middle in the flow direction X of the mixed gas. Such an intermediate position 201 is equivalent to being in the middle of the mixed gas, so that the oxygen input at the intermediate position 201 can be in the middle of the mixed gas, thereby being able to be fully mixed with the hydrogen and helium in the mixed gas.

[0046] In this application, the second pipe 12 is connected to the middle position 201 of the buffer section 20, allowing oxygen to be introduced from the middle of the buffer section 20. This facilitates thorough mixing with hydrogen, thereby improving the efficiency of the hydrogen-oxygen recombination reaction. However, this disclosure is not limited to this. In some embodiments, the second pipe can also be connected to other positions in the buffer section, as long as it achieves the effect of thorough mixing with the mixed gas. For example, in some embodiments, the second pipe can be connected to a position slightly above the middle of the buffer section, or a position slightly below the middle of the buffer section.

[0047] In this application, the synthesis section 30 can be connected to the buffer section 20. For example, the synthesis section 30 and the buffer section 20 can be connected through a fourth pipe 14. The buffer section 20 has an outlet, and the mixed gas flowing out of the outlet of the buffer section 20 enters the synthesis section 30 through the fourth pipe 14, where a hydrogen-oxygen recombination reaction occurs.

[0048] In some embodiments of this application, the synthesis unit 30 is provided with a catalyst and filler. Under the catalytic action of the catalyst, a hydrogen-oxygen recombination reaction takes place inside the synthesis unit 30 to ultimately produce water.

[0049] In this embodiment, the type of catalyst disposed within the synthesis unit 30 is not limited. For example, a noble metal catalyst, such as a platinum catalyst, may be selected; alternatively, a biological catalyst, such as an aqueous enzyme catalyst, may also be selected.

[0050] In some embodiments of this application, the hydrogen-oxygen recombination device 1 may further include a heating device 40 and a temperature control module. The heating device 40 may be disposed around the outside of the synthesis section 30, and the temperature control module is used to control the temperature of the synthesis section 30 to match the active temperature of the catalyst. Hydrogen and oxygen undergo a recombination reaction under the action of the hydrogen-oxygen recombination catalyst and release heat of reaction. With the external heating device 40 of the synthesis section 30, gas preheating and recombination are completed more efficiently, thereby improving the efficiency of the hydrogen-oxygen recombination reaction.

[0051] In this application, the heating device 40 can heat the synthesis section 30. The heating temperature of the synthesis section can be controlled by the temperature control module to maintain the temperature of the synthesis section at a level that matches the active temperature of the catalyst. Catalysts generally have an active temperature range. Within this range, the catalyst exhibits high activity. The configuration of this application is beneficial for maximizing the catalytic effect of the catalyst.

[0052] In this application, the temperature control module can control the heating device 40 to electrically heat the synthesis section 30, with a total heating power of approximately 4.0 kW. The heating device located outside the synthesis section 30 can quickly preheat the gas in the synthesis section 30 to 100–120°C. The hydrogen-oxygen composite catalyst packed in the synthesis section 30 can be in granular form, with the granules having a triangular appearance. A temperature detection device, such as a thermocouple, can be installed on the outer wall of the synthesis section 30 for temperature detection. The temperature detection device can be signal-connected to the temperature control module, allowing the temperature control module to adjust the temperature based on the detected temperature. For example, it can control the heating device 40 to heat the synthesis section 30, or control the heating device 40 to stop heating the synthesis section 30.

[0053] It should be noted that the type of heating device 40 is not limited in this embodiment. For example, various types of electric heaters such as electromagnetic heating, infrared heating, or resistance heating can be selected. In addition, the heating device 40 can also be a heating device 40 that generates heat by burning fuel.

[0054] In some embodiments of this application, the heating device 40 can be selected as an electric heating element. Furthermore, the electric heating element can be inserted into the synthesis section 30 to directly heat the synthesis section 30; alternatively, the electric heating element can be thermally connected to the side wall of the synthesis section 30 to heat the side wall of the synthesis section 30, thereby indirectly heating the synthesis section 30.

[0055] It should be noted that, in this embodiment of the application, by providing a heating device 40 around the synthesis section 30, the structural integrity of the synthesis section 30 can be ensured, and the synthesis section 30 can be sealed from the external environment, thereby preventing gas leakage.

[0056] In some embodiments of this application, such as Figure 1 As shown, the hydrogen-oxygen recombination device 1 may also include a third pipeline 13, which may be connected to the main pipeline 10 to transport inert gas.

[0057] In this application, the third pipeline 13 can be used to transport inert gas. For example, one end of the third pipeline 13 can be connected to an inert gas source, and the other end can be connected to the main pipeline 10 to transport inert gas to the buffer section 20 through the main pipeline 10.

[0058] In this application, gas protection can be achieved by supplying inert gas into the main pipeline, ensuring that the hydrogen concentration is controlled within a safe range. The inert gas, entering the buffer tank, mixes thoroughly with the hydrogen and oxygen, maintaining the hydrogen and oxygen concentrations within safe limits, preventing hydrogen explosions, and avoiding system pressure instability.

[0059] In this application, the third pipeline 13 can be used to transport one or more inert gases such as helium, neon, argon, krypton, and xenon, and this disclosure does not make specific limitations. For ease of explanation, helium is used as an example in the following embodiments.

[0060] In this application, the connection point between the third pipeline 13 and the main pipeline 10 can be located downstream of the connection point between the first pipeline 11 and the main pipeline 10. Thus, after hydrogen gas travels a certain distance through the first pipeline 11 into the main pipeline 10, it will encounter an inert gas. This arrangement allows for the control of the oxygen content in the main pipeline 10 using helium, thereby preventing a hydrogen explosion in the main pipeline 10. However, this disclosure is not limited to this. In some embodiments, the connection point between the third pipeline 13 and the main pipeline 10 can be located upstream of the connection point between the first pipeline 11 and the main pipeline 10, as long as the purpose of preventing a hydrogen explosion is achieved.

[0061] In some embodiments, a certain amount of inert gas can be introduced first through the third pipeline 13, and then hydrogen can be introduced through the first pipeline 11 to avoid hydrogen explosion.

[0062] In this application, during the operation of the hydrogen-oxygen recombination device 1, hydrogen and oxygen gases can be fully mixed in the synthesis section 30, and helium is simultaneously introduced during operation for gas protection, so that the hydrogen and oxygen concentrations are controlled within a safe range, preventing hydrogen explosion and avoiding system pressure instability.

[0063] In some embodiments of this application, such as Figure 1 As shown, the hydrogen-oxygen recombination device 1 can be equipped with a hydrogen flow meter 112, an oxygen flow meter 122, and a helium flow meter 132 (inert gas flow meter). The hydrogen flow meter 112, oxygen flow meter 122, helium flow meter 132 and the synthesis unit 30 can be mounted on a support. The hydrogen flow meter 112 can be connected between the hydrogen source and the first pipeline 11 to record the flow rate of hydrogen intake. The oxygen flow meter 122 can be connected between the oxygen source and the second pipeline 12 to record the flow rate of oxygen intake. The helium flow meter 132 can be connected between the helium source and the third pipeline 13 to record the flow rate of helium intake.

[0064] In this application, based on the control of the hydrogen flow meter 112 and the oxygen flow meter 122, hydrogen and oxygen can be controlled to enter the gas in a volume ratio of 2:1, thereby achieving the efficient occurrence of hydrogen-oxygen recombination reaction.

[0065] In this application, the hydrogen-oxygen recombination device 1 may be equipped with a support (not shown). The support can be used to fix the synthesis unit 30, which is beneficial for the stable setting of the synthesis unit 30 and also facilitates the movement of the hydrogen-oxygen recombination device 1. Specifically, during movement, the hydrogen-oxygen recombination device 1 can be moved by moving the support without having to act on the synthesis unit 30, buffer unit 20, etc., thus avoiding damage to the synthesis unit 30, buffer unit 20, etc. during the movement.

[0066] In this application, the hydrogen flow meter 112, the oxygen flow meter 122, and the helium flow meter 132 can record the flow rates of hydrogen, oxygen, and ammonia respectively, thereby adaptively adjusting the flow rates of hydrogen, oxygen, and ammonia according to the settings or the progress of the reaction.

[0067] In this application, the hydrogen flow meter 112 can control the input of hydrogen at flow rates of 100 ml / min, 200 ml / min, and 300 ml / min.

[0068] In this application, the oxygen flow meter 122 can control the input of oxygen at flow rates of 50 ml / min, 100 ml / min, and 150 ml / min.

[0069] In this application, a first valve 111 may be installed on the first pipeline 11, and the first valve 111 is located between the hydrogen flow meter 112 and the hydrogen source. When it is necessary to adjust the hydrogen flow rate, the first valve 111 can be opened or closed accordingly.

[0070] In this application, a second valve 121 and a third valve 123 may be installed on the second pipeline 12. The second valve 121 may be located between the oxygen flow meter 122 and the oxygen source. When it is necessary to adjust the oxygen flow rate, it can be adjusted by opening or closing the second valve 121. The third valve 123 may be a shut-off valve. When it is necessary to adjust the oxygen flow rate, it can be adjusted by opening or closing the third valve 123.

[0071] In this application, a fourth valve 131 may be installed on the third pipeline 13, and the fourth valve 131 is located between the helium flow meter 132 and the helium source. When it is necessary to adjust the helium flow rate, the adjustment can be made by opening or closing the fourth valve 131.

[0072] In some embodiments of this application, such as Figure 1 As shown, the hydrogen-oxygen recombination device 1 may also include a pressure sensor 15 and an exhaust valve 110, and the pressure sensor 15 may be installed on the main pipeline 10.

[0073] In this application, the hydrogen-oxygen recombination device 1 may further include a control module. A pressure sensor 15 can be connected to the control module, which can adjust the gas intake based on the pressure detected by the pressure sensor 15 in the main pipeline 10. In this application, the control module can control the intake pressure of the main pipeline 10 to be less than or equal to 0.01 MPa. This pressure control effectively improves the efficiency of the hydrogen-oxygen recombination reaction.

[0074] It should be noted that, in the embodiments of this application, the type of control module is not limited. The control module here can be a programmable logic controller (PLC) or other devices with processing capabilities, such as industrial computers, personal computers or other devices, etc.

[0075] In this application, one or more of the following components can be connected to the control module via signals: hydrogen flow meter 112, oxygen flow meter 122, helium flow meter 132, first valve 111, second valve 121, third valve 123, fourth valve 131, and exhaust valve 110. Thus, the control module can adjust the relevant components according to the settings or the occurrence of the hydrogen-oxygen recombination reaction, thereby achieving efficient hydrogen-oxygen recombination reaction.

[0076] In this application, the inlet temperature of the hydrogen-oxygen recombination device 1 can be 10–60°C. With this setting, the hydrogen and oxygen concentrations in the gas are strictly controlled within safe ranges. In some embodiments of this application, the pressure drop during operation of the hydrogen-oxygen recombination device 1 can be 1.0 kPa.

[0077] In some embodiments of this application, the diameter of the main pipeline 10 can be 0.2 inches to 0.3 inches. For example, the diameter of the main pipeline 10 can be 0.2 inches, 0.25 inches, or 0.3 inches.

[0078] In this application, a pressure sensor is installed to monitor the intake pressure of the main pipeline 10 in real time, thereby allowing for adjustment of the intake flow rate and pressure of the main pipeline 10 at any time to ensure the stable progress of the hydrogen-oxygen recombination reaction.

[0079] In some embodiments of this application, the volume of the buffer section 20 is 100ml-180ml. For example, in some embodiments, the volume of the buffer section 20 is 110ml, 120ml, 130ml, 140ml, 150ml, 160ml, or 170ml.

[0080] In this application, the buffer section 20 has a relatively small volume, making it easy to move and improving the overall flexibility of the hydrogen-oxygen recombination device.

[0081] In some embodiments of this application, the length of the synthesis section 30 along the flow direction X of the mixed gas can be 10cm-18cm. For example, in some embodiments, the length of the synthesis section 30 can be 11cm, 12cm, 13cm, 14cm, 15cm, 16cm, or 17cm.

[0082] In some embodiments of this application, the diameter of the synthesis section 30 can be 5mm-10mm. For example, in some embodiments, the diameter of the synthesis section 30 can be 5mm, 6mm, 7mm, 8mm, or 9mm.

[0083] In this application, the synthesis section is relatively small in size, making it easy to move and improving the overall flexibility of the hydrogen-oxygen recombination device 1. The limited diameter and length of the synthesis section in this application facilitate the complete occurrence of the hydrogen-oxygen recombination reaction, thereby increasing the conversion rate of the hydrogen-oxygen recombination reaction.

[0084] It should be noted that in some embodiments of this application, the specific structural type of the buffer portion 20 or the composite portion 30 is not limited. For example, the buffer portion 20 or the composite portion 30 can be made into a spherical or cylindrical shape. In addition, in the embodiments of this application, the material of the buffer portion 20 is not limited. For example, the material of the buffer portion 20 can be made of stainless steel.

[0085] It should be noted that in some embodiments of this application, the specific structure or material of the first pipe 11, the second pipe 12, the third pipe 13, and the fourth pipe 14 are not limited. Making the first pipe 11, the second pipe 12, the third pipe 13, and the fourth pipe 14 into stainless steel pipes facilitates the connection between the first pipe 11, the second pipe 12, the third pipe 13, and the fourth pipe 14 and the main pipe 10 or the buffer section 20.

[0086] In some embodiments of this application, the hydrogen-oxygen recombination device 1 may further include a sampling section 50, which is connected to the outlet of the synthesis section 30.

[0087] In this application, a liquid scintillation spectrometer can be used to detect the water in the sampling section 50 to obtain the content of radioactive substances (e.g., tritium).

[0088] In this application, the sampling section is connected to the outlet of the synthesis section. Water generated in the synthesis section can flow into the sampling section through the outlet, and the water obtained in the sampling section can be used for analysis. In this application, the reaction efficiency in the synthesis section is high, and the water generation efficiency is high, which can meet the sampling requirements. The hydrogen-oxygen recombination device of this application is entirely movable and can be applied to various sampling scenarios, thus expanding its application scope.

[0089] In this application, a hydrogen-oxygen recombination device 1 may include a hydrogen inlet pipe (first pipe 11), a helium inlet pipe (third pipe 13), and an oxygen inlet pipe (second pipe 12) connected to a main pipe. A flow meter is provided on the inlet pipe. A pressure sensor 15 and an exhaust valve 110 are provided on the main pipe 10. The main pipe 10 is connected to a buffer tank, and the outlet is connected to a synthesis section. A heating device 40 is provided outside the synthesis section 30. The outlet of the synthesis section 30 can be sampled for analysis.

[0090] In this embodiment, the gas enters the hydrogen-oxygen recombination device 1 through the gas inlet and is fully mixed through the pipeline flow buffer section before entering the synthesis section 30 through the pipeline. The hydrogen and oxygen in the gas undergo a recombination reaction under the action of the hydrogen-oxygen recombination catalyst and release the heat of reaction. With the help of the external heating device of the synthesis section 30, the gas preheating and recombination are completed more efficiently.

[0091] The hydrogen-oxygen recombination device is equipped with a buffer section with a volume of 150 ml. During operation, it can fully mix hydrogen and oxygen gases and simultaneously fill with helium for gas protection, keeping the hydrogen and oxygen concentrations within a safe range, preventing hydrogen explosions, and avoiding system pressure instability.

[0092] The main pipeline 10 of the hydrogen-oxygen recombination unit has a diameter of 0.25 inches and an operating temperature of 120°C. A heating device electrically heats the synthesis section 30, with a total heating power of 4.0 kW. A heating device 40 located outside the synthesis section can quickly preheat the gas in the synthesis section 30 to 100–120°C. The hydrogen-oxygen recombination catalyst packed in the synthesis section 30 has triangular granules. Temperature measuring points are installed on the outer wall of the synthesis section 30, and thermocouples are mounted thereon.

[0093] The hydrogen-oxygen recombination unit operates with an inlet pressure of 0.01 MPa and an inlet temperature of 10–60°C. The hydrogen and oxygen concentrations in the gas are strictly controlled within safe limits. During operation, the measured pressure drop is 1.0 kPa. The hydrogen-oxygen recombination unit of the above embodiment was compared with a unit without a buffer tank to determine the hydrogen-oxygen recombination reaction conversion rate. The determination method is as follows:

[0094] By recording the inlet and outlet flow rates of hydrogen and oxygen respectively, the conversion rate of the hydrogen-oxygen recombination reaction can be calculated. Recording flow rate data at different times yields a series of recombination conversion rate data. The recombination rate indicates the recombination capacity of the sample at that time point. The measurement results are shown in Tables 1 and 2.

[0095] Table 1. Conversion efficiency of hydrogen-oxygen recombination unit without buffer section.

[0096] Hydrogen flow rate (ml / min) Oxygen flow rate (ml / min) Export flow Conversion rate 100 50 8 94 200 100 35 88.3 300 150 90 80.0

[0097] Table 2 Conversion efficiency of the hydrogen-oxygen recombination unit with buffer section installed.

[0098] Hydrogen flow rate (ml / min) Oxygen flow rate (ml / min) Export flow Conversion rate 100 50 2 98.7 200 100 20 93.3 300 150 44 90.2

[0099] As shown in Tables 1 and 2, at a hydrogen flow rate of 100 ml / min, the conversion rate of the hydrogen-oxygen recombination device with a buffer section is higher than that without a buffer section. Although the conversion rate decreases at 200 ml / min and 300 ml / min, the conversion rate of the hydrogen-oxygen recombination device with a buffer section is still higher. Therefore, installing a buffer section can improve the conversion rate of the hydrogen-oxygen recombination device.

[0100] In this application, by incorporating a buffer section, the efficiency of the hydrogen-oxygen recombination reaction can be improved. Therefore, in applications analyzing the activity of tritium-containing gases, rapid and efficient sampling can be achieved for activity detection. Specifically, in related technologies, devices for neutralizing tritium-containing gases are typically complex in structure, difficult to move, and large in size. Furthermore, these devices lack control elements specifically designed to enhance the efficiency of the hydrogen-oxygen recombination reaction, resulting in a slow rate of liquid formation and making them unsuitable for rapid sampling and analysis.

[0101] In this application, the hydrogen-oxygen recombination reaction is highly efficient and safe, and the hydrogen-oxygen recombination device is compact, small in size, and easy to move, which can meet the needs of rapid sampling and analysis.

[0102] The hydrogen-oxygen recombination device provided in this embodiment is filled with a particulate hydrogen-oxygen recombination catalyst in the synthesis section and has a built-in heating device 40. It can ensure that hydrogen and oxygen are in a volume ratio of 2:1, perform hydrogen-oxygen recombination efficiently and safely, and ensure ultra-low leakage rate and ultra-low operating resistance. It prevents radioactive materials (e.g., tritium) from diffusing into the external environment, reduces equipment operating power consumption, and ultimately eliminates radioactive hydrogen and oxygen in equal proportion. The entire device has a simple structure, reliable function, and is easy to implement.

[0103] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0104] In the description of the embodiments of this application, technical terms such as "first," "second," and "third" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0105] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0106] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects are in an "or" relationship.

[0107] In the description of the embodiments of this application, the technical terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed, operated or used in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0108] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0109] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical term "contact" should be interpreted broadly, and can be direct contact, contact through an intermediate medium layer, contact between two contacting parties with substantially no interaction force, or contact between two contacting parties with interaction force.

[0110] The above embodiments are merely illustrative of the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A hydrogen-oxygen combination device, characterized by comprising: The hydrogen-oxygen complexing device comprises: a first pipeline for conveying hydrogen; a second pipeline for conveying oxygen; a buffer portion provided with an outlet, wherein the hydrogen conveyed by the first pipeline and the oxygen conveyed by the second pipeline are mixed in the buffer portion to form a mixed gas; and a synthesis portion connected to the buffer portion, wherein the mixed gas flowing out of the outlet of the buffer portion undergoes a hydrogen-oxygen complex reaction in the synthesis portion.

2. The hydrogen-oxygen complexing device according to claim 1, further comprising a main pipeline in communication with the first pipeline and the buffer portion, respectively, wherein the hydrogen conveyed by the first pipeline enters the buffer portion through the main pipeline.

3. The hydrogen-oxygen complexing device according to claim 1, wherein the second pipeline is connected to the buffer portion to convey oxygen to the buffer portion.

4. The hydrogen-oxygen complexing device according to claim 3, wherein the buffer portion has an intermediate position in the flow direction of the mixed gas, and the second pipeline is connected to the intermediate position.

5. The hydrogen-oxygen complexing device according to claim 2, further comprising a third pipeline connected to the main pipeline to convey inert gas.

6. The hydrogen-oxygen complexing device according to any one of claims 1 to 5, wherein a catalyst is arranged inside the synthesis portion; and the hydrogen-oxygen complexing device further comprises a heating device arranged outside the synthesis portion and a temperature control module for controlling the temperature of the synthesis portion to match the active temperature of the catalyst.

7. The hydrogen-oxygen complexing device according to claim 5, wherein the hydrogen-oxygen complexing device is provided with a hydrogen flow meter, an oxygen flow meter, and an inert gas flow meter, wherein the hydrogen flow meter is connected between a hydrogen source and the first pipeline to record the flow of hydrogen inlet gas, the oxygen flow meter is connected between an oxygen source and the second pipeline to record the flow of oxygen inlet gas, and the inert gas flow meter is connected between an inert gas source and the third pipeline to record the flow of inert gas inlet gas.

8. The hydrogen-oxygen complexing device according to claim 2, further comprising a pressure sensor for sensing the inlet pressure of the main pipeline, wherein the inlet pressure of the main pipeline is less than or equal to 0.01 Mpa, and / or the diameter of the main pipeline is 0.2-0.3 inches.

9. The hydrogen-oxygen complexing device according to claim 1, wherein the volume of the buffer portion is 100-180 ml; and / or the length of the synthesis portion is 10-18 cm and the diameter of the synthesis portion is 5-10 mm along the flow direction of the mixed gas.

10. The hydrogen-oxygen complexing device according to claim 1, further comprising a sampling portion connected to the outlet of the synthesis portion. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

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