Crude helium dehydrogenation device

Abstract

The utility model discloses a crude helium dehydrogenation device, relates to the technical field of helium purification, and aims to solve the problems of higher dehydrogenation cost and poorer dehydrogenation effect. The crude helium dehydrogenation device comprises a mixer, a first-stage reactor, a first-stage cooler, a first-stage gas-liquid separator and a second-stage reactor; a gas inlet of the mixer is used for being communicated with an oxygen-containing gas source and a feed gas source, a gas outlet of the mixer is communicated with a gas inlet of the first-stage reactor, a gas outlet of the first-stage reactor is communicated with a gas inlet of the first-stage cooler, a gas outlet of the first-stage cooler is communicated with a gas inlet of the first-stage gas-liquid separator, and a gas outlet of the first-stage gas-liquid separator is communicated a gas outlet of the primary gas-liquid separator is communicated with a gas inlet of the secondary reactor; the gas outlet of the primary gas-liquid separator is also communicated with the gas inlet of the mixer; the gas outlet of the first-stage reactor is also communicated with the gas inlet of the second-stage reactor. The crude helium dehydrogenation device provided by the utility model is used for improving the dehydrogenation effect and reducing the production cost.

Description

Technical Field

[0001] The utility model relates to the technical field of helium purification, in particular to a crude helium dehydrogenation device. Background Art

[0002] Helium is an important strategic resource and is widely used in the defense industry, aerospace, medical, nuclear industry, and electronics industry. At present, helium is purified by gas separation membrane or pressure swing adsorption technology. However, after separation by membrane separation or pressure swing adsorption, helium still contains 2% to 40% hydrogen, so helium needs to be dehydrogenated.

[0003] Traditional crude helium dehydrogenation generally uses a multi-stage dehydrogenation device. In order to ensure the heat of the dehydrogenation device, this process requires the installation of a multi-stage heater. Therefore, the traditional helium dehydrogenation device has a high cost and poor dehydrogenation effect. Utility Model Content

[0004] The utility model aims to provide a crude helium dehydrogenation device for improving the dehydrogenation effect and reducing the production cost.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a crude helium dehydrogenation device, including a mixer, a primary reactor, a primary cooler, a primary gas-liquid separator and a secondary reactor; the air inlet of the mixer is used to communicate with an oxygen-containing gas source and a raw gas source, the air outlet of the mixer is connected to the air inlet of the primary reactor, the air outlet of the primary reactor is connected to the air inlet of the primary cooler, the air outlet of the primary cooler is connected to the air inlet of the primary gas-liquid separator, and the air outlet of the primary gas-liquid separator is connected to the air inlet of the secondary reactor. The air outlet of the primary reactor is also connected to the air inlet of the secondary reactor; wherein, the gas flowing out of the primary reactor is divided into two parts, one part enters the primary cooler, and the other part enters the secondary reactor. The air outlet of the primary gas-liquid separator is also connected to the air inlet of the mixer; wherein, the gas flowing out of the primary gas-liquid separator is divided into two parts, one part enters the secondary reactor, and the other part enters the mixer.

[0006] Compared with the prior art, a part of the high-temperature gas flowing out of the primary reactor of a crude helium dehydrogenation device provided by the utility model enters a primary cooler and a primary gas-liquid separator for cooling. Another part of the high-temperature gas is mixed with the cooled gas as a heat source, and then the temperature of the mixed gas is controlled between 80 and 120°C, and then enters the secondary reactor for deep dehydrogenation. In this way, before the gas flows to the secondary reactor, there is no need to set a heater to heat the gas, so that the temperature of the gas entering the secondary reactor can meet the reaction requirements. In other words, the crude helium dehydrogenation device provided by the utility model reduces the use of heaters by rationally utilizing the heat of the dehydrogenation reaction, meets the heat demand of the dehydrogenation device, and reduces production costs. In addition, another part of the gas after cooling returns to the mixer again, and the hydrogen concentration at the entrance of the primary reactor is reduced by a circulation method, so as to prevent the hydrogen concentration from being too high, and the reaction rate with oxygen in the primary reactor is too fast, resulting in excessive temperature rise, thereby causing methane and oxygen in the raw gas to react to generate hydrogen, affecting the dehydrogenation effect, so as to achieve the purpose of improving the dehydrogenation effect.

[0007] In some possible implementations, the crude helium dehydrogenation device further includes a heater, wherein the gas inlet of the heater is connected to the gas outlet of the mixer, and the gas outlet of the heater is connected to the gas inlet of the primary reactor.

[0008] In some possible implementations, the crude helium dehydrogenation device further includes a compressor, wherein an air inlet of the compressor is connected to an air outlet of the mixer, and an air outlet of the compressor is connected to an air inlet of the heater.

[0009] In some possible implementations, the crude helium dehydrogenation device further includes a circulating compressor, the air inlet of the circulating compressor is connected to the air outlet of the primary gas-liquid separator, and the air outlet of the circulating compressor is connected to the air inlet of the mixer.

[0010] In some possible embodiments, a first thermometer is provided in the primary reactor, and the first thermometer is used to monitor the temperature in the primary reactor; a second thermometer is provided in the secondary reactor, and the second thermometer is used to monitor the temperature in the secondary reactor.

[0011] In some possible embodiments, the crude helium dehydrogenation device further includes a primary splitter and a secondary splitter; the primary reactor, the primary cooler, and the secondary reactor are all connected to the primary splitter, and the primary splitter is used to split the gas flowing out of the primary reactor to the primary cooler and the secondary reactor; the primary gas-liquid separator, the secondary reactor, and the mixer are all connected to the secondary splitter, and the secondary splitter is used to split the gas flowing out of the primary gas-liquid separator to the secondary reactor and the mixer.

[0012] In some possible implementations, a third thermometer is provided between the primary reactor and the primary splitter; a fourth thermometer is provided between the primary gas-liquid separator and the secondary splitter; and a regulating valve is provided at the gas outlet of the primary gas-liquid separator.

[0013] In some possible implementations, the crude helium dehydrogenation device further includes a storage tank, and the primary gas-liquid separator, the primary reactor, and the secondary reactor are all connected to the storage tank.

[0014] In some possible embodiments, the crude helium dehydrogenation device further includes a secondary cooler and a secondary gas-liquid separator, wherein the air inlet of the secondary cooler is connected to the air outlet of the secondary reactor, and the air outlet of the secondary cooler is connected to the air inlet of the secondary gas-liquid separator.

[0015] In some possible embodiments, the crude helium dehydrogenation device further includes a chilled water cooler and a three-stage gas-liquid separator, the air inlet of the chilled water cooler is connected to the air outlet of the second-stage gas-liquid separator, and the air outlet of the chilled water cooler is connected to the air inlet of the three-stage gas-liquid separator. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 A schematic structural diagram of a crude helium dehydrogenation device provided in an embodiment of the utility model;

[0018] Figure 2 A schematic structural diagram of another crude helium dehydrogenation device provided in an embodiment of the utility model.

[0019] Reference numerals:

[0020] 1-Mixer; 2-First reactor; 3-First cooler; 4-First gas-liquid separator; 41-First drain valve; 5-Second reactor; 6-Heater; 7-Compressor; 8-Circulating compressor; 9-First thermometer; 10-Oxygen inlet valve; 11-Feed gas inlet valve; 12-Second thermometer; 13-First flow divider; 14-Second flow divider; 15-Third thermometer; 16-Fourth thermometer; 17-Regulating valve; 18-Storage tank; 19-Second cooling 20-secondary gas-liquid separator; 201-second sewage valve; 21-chilled water cooler; 22-tertiary gas-liquid separator; 23-first pressure gauge; 24-first mass flow meter; 25-second pressure gauge; 26-second mass flow meter; 27-third pressure gauge; 28-third mass flow meter; 29-fifth thermometer; 30-fourth mass flow meter; 31-fifth mass flow meter; 32-product gas outlet valve; 33-sixth thermometer; 34-fourth pressure gauge. DETAILED DESCRIPTION

[0021] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0022] In addition, the terms "first", "second", "third", "fourth", "fifth", and "sixth" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first", "second", "third", "fourth", "fifth", and "sixth" may explicitly or implicitly include one or more of the features.

[0023] In the description of the present invention, it is necessary to understand that the positional relationship indicated by the term "between" etc. is based on the positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense, for example, it can be direct communication, or indirect communication through an intermediate medium, or it can be the internal communication of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] Helium is an important strategic resource and is widely used in the defense industry, aerospace, medical, nuclear industry, and electronics industry. At present, helium is purified by gas separation membranes or pressure swing adsorption and other technologies. However, after separation by membrane separation or pressure swing adsorption, the helium still contains 2% to 40% hydrogen, so the helium needs to be dehydrogenated. Traditionally, a multi-stage dehydrogenation device is generally used, but when the hydrogen concentration in the feed gas is high, the reaction rate in the primary reactor is fast, resulting in excessive temperature rise in the primary reactor, which may cause the methane and oxygen in the feed gas to react to generate hydrogen, affecting the dehydrogenation effect. In addition, after the gas flowing out of the primary reactor is cooled, it needs to be heated again when entering the secondary reactor, so a heating device needs to be set up, resulting in a high cost of the device.

[0026] In order to solve the above problems, Figure 1 As shown, a crude helium dehydrogenation device provided by an embodiment of the utility model comprises a mixer 1, a primary reactor 2, a primary cooler 3, a primary gas-liquid separator 4 and a secondary reactor 5; the air inlet of the mixer 1 is used to communicate with an oxygen-containing gas source O, illustratively, the oxygen-containing gas source O can be an air source or an oxygen source, which is not specifically limited in this application. The air inlet of the mixer 1 is also connected to a raw gas source H. The air outlet of the mixer 1 is connected to the air inlet of the primary reactor 2, the air outlet of the primary reactor 2 is connected to the air inlet of the primary cooler 3, the air outlet of the primary cooler 3 is connected to the air inlet of the primary gas-liquid separator 4, and the air outlet of the primary gas-liquid separator 4 is connected to the air inlet of the secondary reactor 5. The air outlet of the primary reactor 2 is also connected to the air inlet of the secondary reactor 5; wherein, the gas flowing out of the primary reactor 2 is divided into two parts, one part enters the primary cooler 3, and the other part enters the secondary reactor 5. The gas outlet of the primary gas-liquid separator 4 is also connected to the gas inlet of the mixer 1 ; wherein the gas flowing out of the primary gas-liquid separator 4 is divided into two parts, one part enters the secondary reactor 5 , and the other part enters the mixer 1 .

[0027] In the crude helium dehydrogenation process of the crude helium dehydrogenation device provided in the embodiment of the utility model, the oxygen-containing gas source O provides oxygen-containing gas, and the raw gas source H provides raw gas (i.e., crude helium to be purified). After the oxygen-containing gas and the raw gas are fully mixed in the mixer 1, they enter the primary reactor 2. In the primary reactor 2, the hydrogen in the raw gas reacts with oxygen to generate water, thereby removing most of the hydrogen. By appropriately allocating the amount of oxygen-containing gas added to the primary reactor 2, the hydrogen content at the outlet of the primary reactor 2 can be controlled to be less than 0.3%. The reaction of hydrogen and oxygen releases heat, causing the gas temperature to rise. For example, the temperature of the gas flowing out of the primary reactor 2 is close to 160°C. After the high-temperature gas flows out of the primary reactor 2, a part of the high-temperature gas enters the secondary reactor 5; the other part is cooled by the primary cooler 3, and further cooled and separated by the primary gas-liquid separator 4. For example, the gas temperature flowing out of the primary gas-liquid separator 4 can be reduced to about 40°C. A portion of the cooled gas is sent to the secondary reactor 5 and mixed with the high-temperature gas entering the secondary reactor 5. The temperature of the mixed gas is controlled at 80-120°C by adjusting the flow ratio of the two gases going to the secondary reactor 5, and the residual hydrogen is further removed in the secondary reactor 5. The hydrogen can be removed by reaction to below 0.1ppm. Another portion of the cooled gas is returned to the mixer 1 again and mixed with the feed gas and the oxygen-containing gas to reduce the hydrogen concentration of the mixed gas entering the primary reactor 2.

[0028] Compared with the prior art, a part of the high-temperature gas flowing out of the primary reactor 2 of a crude helium dehydrogenation device provided by the utility model enters the primary cooler 3 and the primary gas-liquid separator 4 for cooling. Another part of the high-temperature gas is mixed with the cooled gas as a heat source, and then the temperature of the mixed gas is controlled between 80 and 120°C, and then enters the secondary reactor 5 for deep dehydrogenation. In this way, before the gas flows to the secondary reactor 5, there is no need to set a heating device to heat the gas, so that the temperature of the gas entering the secondary reactor 5 can meet the reaction requirements. In other words, the crude helium dehydrogenation device provided by the utility model reduces the use of the heating device by rationally utilizing the heat of the dehydrogenation reaction, meets the heat demand of the dehydrogenation device, and reduces the production cost. In addition, another part of the gas after cooling returns to the mixer 1 again, and the hydrogen concentration at the inlet of the primary reactor 2 is reduced by circulation, so as to prevent the hydrogen concentration from being too high, and the reaction rate with oxygen in the primary reactor 2 is too fast, resulting in excessive temperature rise, thereby causing the methane and oxygen in the raw gas to react to generate hydrogen, affecting the dehydrogenation effect, so as to achieve the purpose of improving the dehydrogenation effect.

[0029] Furthermore, if Figure 1As shown, the secondary reactor 5 is also connected to an oxygen-containing gas source O, and the gas flowing out of the primary reactor 2 is mixed with the oxygen-containing gas and undergoes an oxidation reaction in the secondary reactor 5, thereby further removing hydrogen from the gas.

[0030] Exemplarily, the bed of the primary reactor 2 has a catalyst, and exemplary, the bed of the secondary reactor 5 also has a catalyst. Under the catalytic action of the catalyst, hydrogen reacts with oxygen in the air to generate water. Further, both the primary reactor 2 and the secondary reactor 5 have a multi-bed structure to achieve gradual and uniform dehydrogenation.

[0031] As a possible way to achieve this, Figure 1 As shown, the crude helium dehydrogenation device further includes a heater 6, the gas inlet of the heater 6 is connected to the gas outlet of the mixer 1, and the gas outlet of the heater 6 is connected to the gas inlet of the primary reactor 2. The gas mixed by the mixer 1 is heated by the heater 6 so that the gas meets the temperature required for the reaction of hydrogen and oxygen when entering the primary reactor 2. Exemplarily, the heater 6 can heat the gas to 60-80°C.

[0032] In some possible implementations, such as Figure 1 As shown, the crude helium dehydrogenation device further comprises a compressor 7, the air inlet of the compressor 7 is connected to the air outlet of the mixer 1, and the air outlet of the compressor 7 is connected to the air inlet of the heater 6. The mixed gas flowing out of the mixer 1 is pressurized by the compressor 7, so that the gas flows smoothly into the first reactor.

[0033] In some possible implementations, such as Figure 2 As shown, the crude helium dehydrogenation device further includes a circulating compressor 8, the air inlet of the circulating compressor 8 is connected to the air outlet of the primary gas-liquid separator 4, and the air outlet of the circulating compressor 8 is connected to the air inlet of the mixer 1. A portion of the gas flowing out of the primary gas-liquid separator 4 is pumped into the mixer 1 under the action of the circulating compressor 8 to reduce the hydrogen concentration at the inlet of the primary reactor 2, to prevent the excessively high temperature rise caused by the excessively high reaction rate with oxygen in the primary reactor 2 when the hydrogen concentration is too high, and then cause the methane in the raw gas to react with oxygen to generate hydrogen, thereby affecting the dehydrogenation effect. In this way, the purpose of improving the helium dehydrogenation effect is achieved.

[0034] As a possible way to achieve this, Figure 2As shown, a first thermometer 9 is provided in the primary reactor 2, and the first thermometer 9 is used to monitor the temperature in the primary reactor 2. The mixed gas enters the primary reactor 2 and begins to rapidly undergo a dehydrogenation reaction, preliminarily removing hydrogen. The temperature is monitored by the first thermometer 9 in the primary reactor 2, and the speed at which the oxygen-containing gas source O provides the oxygen-containing gas and the speed at which the raw gas source H provides the raw gas are controlled, thereby adjusting the reaction speed of hydrogen and oxygen, and then adjusting the heat released by the reaction, so as to control the temperature and reduce the occurrence of side reactions caused by excessively high temperature. This is to achieve the purpose of improving the helium dehydrogenation effect.

[0035] Exemplarily, the crude helium dehydrogenation device further includes an oxygen inlet valve 10 and a raw gas inlet valve 11. The oxygen inlet valve 10 can adjust the oxygen supply flow rate, and the raw gas inlet valve 11 can adjust the raw gas supply flow rate.

[0036] In some possible implementations, such as Figure 2 As shown, a second thermometer 12 is provided in the secondary reactor 5, and the second thermometer 12 is used to monitor the temperature in the secondary reactor 5. The temperature is monitored by the second thermometer 12 in the secondary reactor 5, and the flow rate and ratio of the high-temperature gas and the low-temperature gas flowing into the secondary reactor 5 are controlled to adjust the temperature in the secondary reactor 5 and reduce the occurrence of side reactions, so as to achieve the purpose of improving the helium dehydrogenation effect.

[0037] As a possible way to achieve this, Figure 2 As shown, the crude helium dehydrogenation device further includes a primary flow splitter 13 and a secondary flow splitter 14. The primary reactor 2, the primary cooler 3, and the secondary reactor 5 are all connected to the primary flow splitter 13, and the primary flow splitter 13 is used to split the gas flowing out of the primary reactor 2 to the primary cooler 3 and the secondary reactor 5. The primary gas-liquid separator 4, the secondary reactor 5, and the mixer 1 are all connected to the secondary flow splitter 14, and the secondary flow splitter 14 is used to split the gas flowing out of the primary gas-liquid separator 4 to the secondary reactor 5 and the mixer 1.

[0038] In some possible implementations, such as Figure 2As shown, a third thermometer 15 is provided between the primary reactor 2 and the primary diverter 13; a fourth thermometer 16 is provided between the primary gas-liquid separator 4 and the secondary diverter 14; and a regulating valve 17 is provided at the gas outlet of the primary gas-liquid separator 4. The third thermometer 15 can monitor the temperature of the gas flowing out of the primary reactor 2, that is, monitor the temperature of the high-temperature gas flowing to the secondary reactor 5. The fourth thermometer 16 can monitor the temperature of the gas flowing out of the primary gas-liquid separator 4, that is, monitor the temperature of the low-temperature gas flowing to the secondary reactor 5. According to the temperature of the high-temperature gas and the temperature of the low-temperature gas, the regulating valve 17 at the gas outlet of the primary gas-liquid separator 4 is adjusted, and then the ratio of the high-temperature gas and the low-temperature gas flowing to the secondary reactor 5 is adjusted, so that the temperature of the gas entering the secondary reactor 5 is moderate, and the reaction conditions of hydrogen and oxygen are met, while reducing the occurrence of side reactions. In order to achieve the purpose of improving the dehydrogenation effect of helium.

[0039] As a possible way to achieve this, Figure 2 As shown, the crude helium dehydrogenation device further includes a storage tank 18, and the primary gas-liquid separator 4, the primary reactor 2, and the secondary reactor 5 are all connected to the storage tank 18. The high-temperature gas flowing out of the primary reactor 2 and the low-temperature gas flowing out of the primary gas-liquid separator 4 can be mixed in the storage tank 18, and can also be temporarily stored in the storage tank 18.

[0040] Furthermore, the storage tank 18 can also be connected to an oxygen-containing gas source. Oxygen, high-temperature gas flowing out of the primary reactor 2 and low-temperature gas flowing out of the primary gas-liquid separator 4 can be mixed in the storage tank 18 and then circulated to the secondary reactor 5 for deep dehydrogenation.

[0041] In some possible implementations, such as Figure 1 or Figure 2 As shown, the crude helium dehydrogenation device further includes a secondary cooler 19 and a secondary gas-liquid separator 20. The gas inlet of the secondary cooler 19 is connected to the gas outlet of the secondary reactor 5, and the gas outlet of the secondary cooler 19 is connected to the gas inlet of the secondary gas-liquid separator 20. The gas flowing out of the secondary reactor 5 is cooled in the secondary cooler 19. For example, the gas can be cooled to about 40°C in the secondary cooler 19; then it flows to the secondary gas-liquid separator 20 for gas-liquid separation, liquefies and separates the water. Then, the water vapor generated by hydrogen and oxygen is removed.

[0042] Furthermore, if Figure 1As shown, the crude helium dehydrogenation device further includes a chilled water cooler 21 and a tertiary gas-liquid separator 22. The air inlet of the chilled water cooler 21 is communicated with the air outlet of the secondary gas-liquid separator 20, and the air outlet of the chilled water cooler 21 is communicated with the air inlet of the tertiary gas-liquid separator 22. The gas phase separated by the secondary gas-liquid separator 20 is further cooled in the chilled water cooler 21. For example, the gas phase can be cooled to 15° C. in the chilled water cooler 21, and then enters the tertiary gas-liquid separator 22 to further liquefy and separate water to ensure the purity of the purified helium.

[0043] In some embodiments, Figure 2 As shown, a first pressure gauge 23 and a first mass flow meter 24 are provided at the outlet of the oxygen-containing gas source. The first pressure gauge 23 is used to monitor the pressure of the oxygen-containing gas, and the first mass flow meter 24 is used to monitor the flow rate of the oxygen-containing gas. A second pressure gauge 25 and a second mass flow meter 26 are provided at the outlet of the raw gas source. The second pressure gauge 25 is used to monitor the pressure of the raw gas, and the second mass flow meter 26 is used to monitor the flow rate of the raw gas. The ratio of the oxygen-containing gas and the raw gas entering the mixer 1 is then monitored and regulated.

[0044] In some embodiments, Figure 2 As shown, the oxygen gas and the raw material gas are mixed in the pipeline and then enter the mixer 1 for further mixing. After the oxygen-containing gas and the raw material gas are mixed, a third pressure gauge 27, a third mass flow meter 28 and a fifth thermometer 29 are also provided on the pipeline flowing to the mixer 1. The third pressure gauge 27 is used to monitor the pressure of the mixed gas, the third mass flow meter 28 is used to monitor the flow rate of the mixed gas, and the fifth thermometer 29 monitors the temperature to ensure that the reaction proceeds normally.

[0045] In some embodiments, Figure 2 As shown, a fourth mass flow meter 30 is also provided between the secondary flow splitter 14 and the storage tank 18. The fourth mass flow meter 30 is used to monitor the gas flow from the primary gas-liquid separator 4 to the storage tank 18. A fifth mass flow meter 31 is also provided between the secondary flow splitter 14 and the circulation compressor 8. The fifth mass flow meter 31 is used to monitor the gas flow from the primary gas-liquid separator 4 back to the mixer 1 to ensure that the circulation is carried out normally.

[0046] In some embodiments, Figure 2As shown, the crude helium dehydrogenation device further includes a product gas outlet valve 32. The product gas outlet valve 32 is connected to the secondary gas-liquid separator 20, and the helium that has completed dehydrogenation and cooling can flow out of the crude helium dehydrogenation device through the product gas outlet valve 32. A sixth thermometer 33 and a fourth pressure gauge 34 are also provided between the product gas outlet valve 32 and the secondary gas-liquid separator 20. The sixth thermometer 33 is used to monitor the temperature of the gas flowing to the product gas outlet valve 32, and the fourth pressure gauge 34 is used to monitor the pressure of the gas flowing to the product gas outlet valve 32, and then the working parameters of the secondary cooler 19 and the secondary gas-liquid separator 20 are regulated by the gas temperature and pressure.

[0047] In some embodiments, Figure 2 As shown, the primary gas-liquid separator 4 has a first drain valve 41. The first drain valve 41 is used to drain the liquid separated by the primary gas-liquid separator 4. The secondary gas-liquid separator 20 has a second drain valve 201. The second drain valve 201 is used to drain the liquid separated by the secondary gas-liquid separator 20.

[0048] During the entire reaction process, various temperature detectors, pressure gauges, and mass flow meters continuously monitor the temperature, pressure, and flow of the gas, and adjust and record relevant data in real time to facilitate subsequent analysis and optimization of the reaction process.

[0049] In the description of the above embodiments, specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0050] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A crude helium dehydrogenation device, characterized in that: It includes a mixer, a primary reactor, a primary cooler, a primary gas-liquid separator and a secondary reactor; The air inlet of the mixer is used to communicate with an oxygen-containing gas source and a raw gas source, the air outlet of the mixer is communicated with the air inlet of the primary reactor, the air outlet of the primary reactor is communicated with the air inlet of the primary cooler, the air outlet of the primary cooler is communicated with the air inlet of the primary gas-liquid separator, and the air outlet of the primary gas-liquid separator is communicated with the air inlet of the secondary reactor; The gas outlet of the primary reactor is also connected to the gas inlet of the secondary reactor; wherein the gas flowing out of the primary reactor is divided into two parts, one part enters the primary cooler, and the other part enters the secondary reactor; The gas outlet of the primary gas-liquid separator is also connected to the gas inlet of the mixer; wherein the gas flowing out of the primary gas-liquid separator is divided into two parts, one part enters the secondary reactor, and the other part enters the mixer.

2. The crude helium dehydrogenation device according to claim 1, characterized in that: The crude helium dehydrogenation device further comprises a heater, wherein the gas inlet of the heater is communicated with the gas outlet of the mixer, and the gas outlet of the heater is communicated with the gas inlet of the primary reactor.

3. The crude helium dehydrogenation device according to claim 2, characterized in that: The crude helium dehydrogenation device further comprises a compressor, wherein an air inlet of the compressor is communicated with an air outlet of the mixer, and an air outlet of the compressor is communicated with an air inlet of the heater.

4. The crude helium dehydrogenation device according to claim 1, characterized in that: The crude helium dehydrogenation device further comprises a circulating compressor, the air inlet of the circulating compressor is communicated with the air outlet of the primary gas-liquid separator, and the air outlet of the circulating compressor is communicated with the air inlet of the mixer.

5. The crude helium dehydrogenation device according to claim 1, characterized in that: A first thermometer is provided in the primary reactor, and the first thermometer is used to monitor the temperature in the primary reactor; A second thermometer is arranged in the secondary reactor, and the second thermometer is used to monitor the temperature in the secondary reactor.

6. The crude helium dehydrogenation device according to claim 1, characterized in that: The crude helium dehydrogenation device also includes a primary flow splitter and a secondary flow splitter; The primary reactor, the primary cooler, and the secondary reactor are all connected to the primary splitter, and the primary splitter is used to split the gas flowing out of the primary reactor to the primary cooler and the secondary reactor; The primary gas-liquid separator, the secondary reactor, and the mixer are all connected to the secondary diverter, and the secondary diverter is used to divert the gas flowing out of the primary gas-liquid separator to the secondary reactor and the mixer.

7. The crude helium dehydrogenation device according to claim 6, characterized in that: A third thermometer is provided between the primary reactor and the primary splitter; A fourth thermometer is provided between the primary gas-liquid separator and the secondary flow divider; The gas outlet of the primary gas-liquid separator is provided with a regulating valve.

8. The crude helium dehydrogenation device according to claim 1, characterized in that: The crude helium dehydrogenation device further comprises a storage tank, and the primary gas-liquid separator, the primary reactor and the secondary reactor are all connected to the storage tank.

9. The crude helium dehydrogenation device according to claim 1, characterized in that: The crude helium dehydrogenation device further comprises a secondary cooler and a secondary gas-liquid separator, wherein the air inlet of the secondary cooler is communicated with the air outlet of the secondary reactor, and the air outlet of the secondary cooler is communicated with the air inlet of the secondary gas-liquid separator.

10. The crude helium dehydrogenation device according to claim 9, characterized in that: The crude helium dehydrogenation device also includes a chilled water cooler and a three-stage gas-liquid separator. The air inlet of the chilled water cooler is connected to the air outlet of the two-stage gas-liquid separator, and the air outlet of the chilled water cooler is connected to the air inlet of the three-stage gas-liquid separator.

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