A detachable hydrogen separation test device for Ni-BZYN membrane testing

Abstract

The present invention discloses a detachable hydrogen separation test device for Ni-BZYN diaphragm testing, comprising a hydrogen-helium mixed gas chamber, a hydrogen separation generator, and a hydrogen gas extraction chamber. The hydrogen separation generator comprises a proton conductor hydrogen pump, the proton conductor hydrogen pump comprising a BZYN diaphragm and nickel electrodes located on either side of the BZYN diaphragm; first and second foam silver rings, respectively hot-pressed onto either side of the proton conductor; a ceramic ring, sleeved onto the outer ring of the proton conductor; first and second conductive silver rings, respectively located on either side of the first and second foam silver rings; first and second ceramic flanges; and first and second conductive silver wires. The present invention provides a larger contact area between the conductive silver rings and the proton conductor hydrogen pump, reducing contact resistance, thereby improving the reliability of the contact surface between the conductive silver rings and the proton conductor hydrogen pump, while also enhancing the mechanical properties of the foam silver micro-bump joint.

Description

Technical Field

[0001] The invention relates to a detachable hydrogen separation testing device for detecting Ni-BZYN membranes. Background Art

[0002] Nuclear fusion is safe, clean, and produces no environmental pollutants, making it a crucial issue for human society. The principle behind nuclear fusion is that two very light atoms, under extremely high temperatures and pressures, collide with each other as electrons outside their nuclei break free, forming new nuclei. This collision also produces neutrons. This primarily involves the formation of helium from tritium under these conditions, where a large number of electrons and neutrons break free, releasing enormous amounts of energy. After the fusion reaction concludes, the challenge is to separate and purify the unreacted tritium from the helium product. Similarly, to sustain the fusion reaction, tritium must be continuously added. In the fusion blanket, neutrons strike lithium atoms, producing tritium and helium as products. Similarly, hydrogen and helium separation technology is also required to ensure the self-sustaining nature of fusion fuel. The operation of the International Thermonuclear Experimental Reactor (ITER) takes place in a vacuum chamber. Deuterium and tritium need to be injected into the vacuum chamber to react at ultra-high temperatures to generate energy. However, the combustion efficiency of the fuel in the device does not exceed 5%. Therefore, it also involves the problem of recycling and processing the fuel gas that has not undergone nuclear fusion reaction and using it again for nuclear fusion reaction.

[0003] The Ni-BZYN proton conductor hydrogen pump-based hydrogen and helium separation method differs from cold separation techniques, which utilize the difference in boiling points between hydrogen isotopes and helium to separate the two. By applying a small external current at 600 degrees Celsius, the hydrogen-containing mixed gas is passed through the proton conductor hydrogen pump to separate the hydrogen. This method conserves energy and reduces unnecessary energy loss, making it a promising hydrogen and helium separation method.

[0004] However, the above method places high demands on the stability and sealing of the experimental apparatus. In actual operation, there are complex issues with the lead-out of the conductive silver wire, as well as process defects such as bubbles at the bonding interface during the conductive silver glue bonding process. These defects can lead to cracks, resulting in bonding failure during operation, increased contact resistance, and reduced airtightness. These issues pose an explosion risk when conducting experiments at high hydrogen concentrations. Using the previous experimental apparatus for experiments results in reduced experimental stability, poor sealing, and an inability to guarantee experimental safety. Summary of the Invention

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide a detachable hydrogen separation test device for Ni-BZYN diaphragm testing.

[0006] The object of the present invention is achieved through the following technical solutions:

[0007] In a first aspect of the present invention, a detachable hydrogen separation test device for Ni-BZYN diaphragm testing is provided, comprising a hydrogen-helium mixed gas chamber, a hydrogen separation generator, and a hydrogen gas extraction chamber, wherein the hydrogen-helium mixed gas chamber is connected to the gas inlet end of the hydrogen separation generator, and the hydrogen gas extraction chamber is connected to the exhaust end of the hydrogen separation generator; the hydrogen separation generator comprises:

[0008] A proton conductor hydrogen pump, comprising a BZYN diaphragm and nickel electrodes located on both sides of the BZYN diaphragm;

[0009] A first foam silver ring and a second foam silver ring are hot-pressed onto both sides of the proton conductor respectively;

[0010] A ceramic ring, sleeved on the outer ring of the proton conductor hydrogen pump;

[0011] The first conductive silver ring and the second conductive silver ring are respectively located on both sides of the first foam silver ring and the second foam silver ring; the first conductive silver ring and the second conductive silver ring are both provided with a conductive silver ring lead-out portion;

[0012] The first ceramic flange and the second ceramic flange are respectively located on both sides of the first conductive silver ring and the second conductive silver ring; the first ceramic flange is provided with a first limiting groove for clamping the first conductive silver ring and a first lead groove matching the conductive silver ring lead-out portion of the first conductive silver ring, and the conductive silver ring lead-out portion of the first conductive silver ring is in surface contact with the first ceramic flange; the second ceramic flange is provided with a second limiting groove for clamping the second conductive silver ring and a second lead groove matching the conductive silver ring lead-out portion of the second conductive silver ring, and the conductive silver ring lead-out portion of the second conductive silver ring is in surface contact with the second ceramic flange;

[0013] The first conductive silver wire and the second conductive silver wire are connected to the first conductive silver ring and the second conductive silver ring respectively through the conductive silver ring lead-out portion;

[0014] The first ceramic flange, the ceramic ring and the second ceramic flange securely seal the entire hydrogen separation generating portion;

[0015] The hydrogen-helium mixed gas chamber is connected to the first ceramic flange; the hydrogen gas extraction chamber is sleeved on the outside of the hydrogen-helium mixed gas chamber and the hydrogen separation generating part, or the hydrogen gas extraction chamber is connected to the second ceramic flange.

[0016] Furthermore, when the hydrogen gas extraction chamber is sleeved on the outside of the hydrogen-helium mixed gas chamber and the hydrogen separation generating portion, the hydrogen-helium mixed gas chamber includes:

[0017] Four-hole ceramic flange, provided with four air holes;

[0018] The hydrogen-helium mixed gas chamber cavity is connected to the first ceramic flange of the hydrogen separation generating part at one end and to the four-hole ceramic flange at the other end.

[0019] The second exhaust gas pipe, the second intake gas pipe, the first intake gas pipe, and the first exhaust gas pipe respectively pass through the four corresponding air holes of the four-hole ceramic flange, wherein the first intake gas pipe and the first exhaust gas pipe are arranged in the hydrogen-helium mixed gas chamber;

[0020] The hydrogen gas extraction chamber comprises:

[0021] Third ceramic flange;

[0022] The hydrogen gas extraction gas chamber cavity is connected to the third ceramic flange; the hydrogen gas extraction gas chamber cavity is sleeved on the outside of the hydrogen-helium mixed gas chamber cavity and the hydrogen separation generating part, the third ceramic flange and the four-hole ceramic flange are fixedly connected, and the second air inlet air pipe and the second exhaust air pipe are both located between the inner wall of the hydrogen gas extraction gas chamber cavity and the outer wall of the hydrogen-helium mixed gas chamber cavity.

[0023] Furthermore, two conductive lead holes are provided on the four-hole ceramic flange, and the first conductive silver wire and the second conductive silver wire pass through the corresponding conductive lead holes respectively.

[0024] Furthermore, the air inlet of the first air intake pipe is closer to the hydrogen separation generating part than the exhaust port of the first exhaust pipe; the exhaust port of the second exhaust pipe is closer to the hydrogen separation generating part than the air inlet of the second air intake pipe.

[0025] Furthermore, when the hydrogen gas extraction chamber is connected to the second ceramic flange, the hydrogen-helium mixed gas chamber includes:

[0026] A hydrogen-helium mixed gas chamber body, one end of which is connected to the first ceramic flange of the hydrogen separation generating part;

[0027] The first air inlet pipe and the first air exhaust pipe respectively pass through the bottom through hole of the hydrogen-helium mixed gas chamber;

[0028] The hydrogen gas extraction chamber comprises:

[0029] The hydrogen gas extraction chamber cavity has one end connected to the second ceramic flange of the hydrogen separation generating part;

[0030] The second air inlet pipe and the second air exhaust pipe respectively pass through the bottom through hole of the hydrogen gas extraction chamber.

[0031] Furthermore, the air inlet of the first air intake pipe is closer to the hydrogen separation generating part than the exhaust port of the first exhaust pipe; the exhaust port of the second exhaust pipe is closer to the hydrogen separation generating part than the air inlet of the second air intake pipe.

[0032] Furthermore, the ceramic flanges, as well as the ceramic flanges and the ceramic rings, are connected by ceramic screws and ceramic nuts.

[0033] Furthermore, the material of the BZYN membrane is BaZr 0.8 Yr 0.16 Ni 0.04 O 3-σ , where 0<σ<1.

[0034] Furthermore, the first conductive silver wire and the second conductive silver wire are connected to a 20mA constant current source, and the operating temperature range of the hydrogen separation generating part is 400°C-800°C.

[0035] Furthermore, the hydrogen-helium mixed gas introduced into the hydrogen-helium mixed gas chamber has a hydrogen content of 0-99%.

[0036] The beneficial effects of the present invention are:

[0037] In an exemplary embodiment of the present invention, a foam silver ring is hot-pressed onto both sides of a proton conductor hydrogen pump at a relatively low temperature of 500°C to 600°C to form a foam silver ring-proton conductor hydrogen pump-foam silver sandwich structure, wherein: (1) the foam silver is introduced as an intermediate layer between the conductive silver ring and the proton conductor hydrogen pump, and the foam silver ring and the proton conductor hydrogen pump are bonded by hot pressing to reduce the contact resistance of the conductive silver ring in direct contact with different metal materials, thereby solving the problem of loose bonding between the conductive silver wire and the proton conductor hydrogen pump using conductive silver glue, and improving the stability, reliability and airtightness of the hydrogen separation experiment. (2) the two foam silver rings have their own nano-scale foam porous structure, which can be hot-pressed onto both sides of the proton conductor hydrogen pump at a relatively low temperature, penetrate into the concave and convex parts of the proton conductor hydrogen pump surface, and tightly bond with the proton conductor hydrogen pump, thereby avoiding the increase in contact resistance caused by the formation of tiny gaps between the conductive silver ring and the proton conductor hydrogen pump surface, and the problem that the proton conductor hydrogen pump may be broken due to direct compression contact between the two structures. That is, the micro-bumps of the foam silver structure in this exemplary embodiment can provide a larger contact area between the silver and the proton conductor hydrogen pump, reduce the contact resistance, and help improve the reliability of the contact surface between the conductive silver ring and the proton conductor hydrogen pump, while increasing the mechanical properties of the foam silver micro-bump joint.

[0038] Furthermore, conductive silver rings (a first conductive silver ring and a second conductive silver ring) are placed on either side of the first foam silver ring-proton conductor hydrogen pump-second foam silver ring structure. Conductive silver wires are connected to the conductive silver ring leads and receive external electrical signals. Flanges (a first ceramic flange, a ceramic ring, and a second ceramic flange) are used to securely seal the hydrogen separation generating section. In this exemplary embodiment, the conductive silver rings have a strong plasticity that allows them to secure and seal the device during the extrusion process, ensuring stability in the hydrogen separation region.

[0039] Furthermore, the design of a conductive silver ring lead-out section solves the complex issue of conductive silver wire lead-out in the original device. The prior art process of using conductive silver glue to bond the conductive silver wire to the proton conductor hydrogen pump at points or surfaces is prone to process defects such as bubbles at the bonding interface, excessive contact area, and insufficient silver glue. This can lead to reduced hydrogen separation test efficiency or even shedding during the test. The conductive silver wire lead-out section effectively avoids these issues and ensures the stability of the hydrogen separation test under high-temperature operating environments.

[0040] At the same time, the ceramic ring is introduced to prevent the first conductive silver ring and the second conductive silver ring from being short-circuited when connected to each other, and the proton conductor hydrogen pump is limited to prevent movement during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 A schematic structural diagram of a detachable hydrogen separation test device for Ni-BZYN membrane testing provided in an exemplary embodiment of the present invention;

[0042] Figure 2 This is a schematic structural diagram of a hydrogen separation generating portion of a detachable hydrogen separation testing device for Ni-BZYN membrane testing provided in an exemplary embodiment of the present invention;

[0043] Figure 3 This is a schematic structural diagram from a first perspective of a hydrogen-helium mixed gas chamber of a detachable hydrogen separation test device for Ni-BZYN membrane testing provided in an exemplary embodiment of the present invention;

[0044] Figure 4 A schematic structural diagram from a second perspective of a hydrogen-helium mixed gas chamber of a detachable hydrogen separation test device for Ni-BZYN membrane testing provided in an exemplary embodiment of the present invention;

[0045] Figure 5 This is a schematic structural diagram of a hydrogen gas extraction chamber of a detachable hydrogen separation test device for Ni-BZYN membrane testing provided in an exemplary embodiment of the present invention;

[0046] Figure 6This is a schematic diagram of a first installation structure of a hydrogen-helium mixed gas chamber and a hydrogen gas extraction chamber of a detachable hydrogen separation test device for Ni-BZYN membrane testing provided in an exemplary embodiment of the present invention;

[0047] Figure 7 This is a schematic diagram of a second installation structure of a hydrogen-helium mixed gas chamber and a hydrogen gas extraction chamber of a detachable hydrogen separation test device for Ni-BZYN membrane testing provided in an exemplary embodiment of the present invention;

[0048] Figure 8 A schematic structural diagram of a detachable hydrogen separation test device for Ni-BZYN membrane testing provided in yet another exemplary embodiment of the present invention;

[0049] In the figure, 1-hydrogen-helium mixed gas chamber, 101-four-hole ceramic flange, 102-hydrogen-helium mixed gas chamber body, 103-second exhaust gas pipe, 104-second intake gas pipe, 105-first exhaust gas pipe, 106-first intake gas pipe; 2-hydrogen separation generating part, 201-proton conductor hydrogen pump, 202-first foam silver ring, 203-second foam silver ring, 204-ceramic ring, 205-first conductive silver ring, 206-second conductive silver ring, 207-conductive silver ring lead-out part, 208-first ceramic flange, 209-second ceramic flange, 210-first limiting groove, 211-first lead groove, 212-first limiting groove, 213-second lead groove; 3-hydrogen gas extraction chamber, 301-third ceramic flange, 302-hydrogen gas extraction chamber. DETAILED DESCRIPTION

[0050] The technical solution of the present invention is described clearly and completely below with reference to the accompanying drawings. It is apparent that the embodiments described are only a portion of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are intended to fall within the scope of protection of the present invention.

[0051] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as "center," "up," "down," "left," "right," "vertical," "horizontal," "inside," and "outside" are based on the directions or positional relationships described in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, terms such as "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0052] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention.

[0053] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0054] See also Figure 1 , Figure 1 A detachable hydrogen separation test device for Ni-BZYN membrane testing provided in an exemplary embodiment of the present invention is shown, comprising a hydrogen-helium mixed gas chamber 1, a hydrogen separation generating unit 2, and a hydrogen gas extraction chamber 3. The hydrogen-helium mixed gas chamber 1 is connected to the gas inlet end of the hydrogen separation generating unit 2, and the hydrogen gas extraction chamber 3 is connected to the exhaust end of the hydrogen separation generating unit 2; Figure 2 As shown, the hydrogen separation generating unit 2 includes:

[0055] A proton conductor hydrogen pump 201, comprising a BZYN diaphragm and nickel electrodes located on both sides of the BZYN diaphragm;

[0056] A first foam silver ring 202 and a second foam silver ring 203 are hot-pressed onto both sides of the proton conductor hydrogen pump 201 ;

[0057] A ceramic ring 204 is sleeved on the outer ring of the proton conductor hydrogen pump 201;

[0058] The first conductive silver ring 205 and the second conductive silver ring 206 are respectively located on both sides of the first foam silver ring 202 and the second foam silver ring 203; the first conductive silver ring 205 and the second conductive silver ring 206 are both provided with a conductive silver ring lead-out portion 207;

[0059] The first ceramic flange 208 and the second ceramic flange 209 are respectively located on both sides of the first conductive silver ring 205 and the second conductive silver ring 206; the first ceramic flange 208 is provided with a first limiting groove 210 for clamping the first conductive silver ring 205 and a first lead groove 211 matching the conductive silver ring lead-out portion 207 of the first conductive silver ring 205, and the conductive silver ring lead-out portion 207 of the first conductive silver ring 205 is in surface contact with the first ceramic flange 208; the second ceramic flange 209 is provided with a second limiting groove 212 for clamping the second conductive silver ring 206 and a second lead groove 213 matching the conductive silver ring lead-out portion 207 of the second conductive silver ring 206, and the conductive silver ring lead-out portion 207 of the second conductive silver ring 206 is in surface contact with the second ceramic flange 209;

[0060] The first conductive silver wire and the second conductive silver wire (not shown in the figure) are respectively connected to the first conductive silver ring 205 and the second conductive silver ring 206 through the conductive silver ring lead-out portion 207;

[0061] The first ceramic flange 208, the ceramic ring 204 and the second ceramic flange 209 securely seal the entire hydrogen separation generating unit 2;

[0062] The hydrogen-helium mixed gas chamber 1 is connected to the first ceramic flange 208 ; the hydrogen gas extraction chamber 3 is sleeved on the outside of the hydrogen-helium mixed gas chamber 1 and the hydrogen separation generating part 2 , or the hydrogen gas extraction chamber 3 is connected to the second ceramic flange 209 .

[0063] Specifically, in this exemplary embodiment, foam silver rings (a first foam silver ring 202 and a second foam silver ring 203) are hot-pressed onto both sides of the proton conductor hydrogen pump 201 at a relatively low temperature of 500°C to 600°C by hot pressing technology to form a foam silver ring-proton conductor hydrogen pump-foam silver sandwich structure, wherein: (1) foam silver is introduced as an intermediate layer between the conductive silver ring and the proton conductor hydrogen pump 201, and the foam silver ring and the proton conductor hydrogen pump 201 are bonded by hot pressing to reduce the contact resistance of the conductive silver ring in direct contact with different metal materials, thereby solving the problem of loose bonding between the conductive silver wire and the proton conductor hydrogen pump 201 using conductive silver glue, and improving the stability, reliability and airtightness of the hydrogen separation experiment. (2) The nanoscale porous foam structure of the two silver foam rings can be hot-pressed onto both sides of the proton conductor hydrogen pump at a relatively low temperature, penetrating into the uneven surfaces of the proton conductor hydrogen pump 201 and tightly bonding with the proton conductor hydrogen pump 201. This prevents the conductive silver ring 204 from directly contacting the surface of the proton conductor hydrogen pump 201, which would create a small gap and increase the contact resistance, as well as the possibility of the proton conductor hydrogen pump 201 being broken by direct compression contact between the two structures. Specifically, the micro-bumps of the silver foam structure in this exemplary embodiment can provide a larger contact area between the silver and the proton conductor hydrogen pump 201, reducing contact resistance and facilitating the reliability of the contact surface between the conductive silver ring and the proton conductor hydrogen pump, while also enhancing the mechanical properties of the silver foam micro-bump joint.

[0064] Furthermore, conductive silver rings (first conductive silver ring 205 and second conductive silver ring 206) are placed on either side of the first foam silver ring 202-proton conductor hydrogen pump 201-second foam silver ring 203 structure. Conductive silver wires are connected to the conductive silver ring lead-out 207 and receive external electrical signals. Flanges (first ceramic flange 208, ceramic ring 204, and second ceramic flange 209) are used to securely seal the hydrogen separation generating unit 2. In this exemplary embodiment, the conductive silver rings have a strong plasticity that allows them to secure and seal the device during the extrusion process, ensuring stability in the hydrogen separation region.

[0065] Furthermore, the provision of conductive silver ring lead-out 207 solves the complex issue of conductive silver wire lead-out in the original device. Conventional techniques for bonding conductive silver wires to proton conductor hydrogen pumps using conductive silver glue at points or surfaces are prone to process defects such as bubbles at the bonding interface, excessive contact area, and insufficient silver glue. These defects can lead to reduced hydrogen separation test efficiency or even detachment during the test. Conductive silver wire lead-out 207 effectively avoids these issues and ensures the stability of hydrogen separation testing in high-temperature environments.

[0066] At the same time, the ceramic ring 204 is introduced to prevent the first conductive silver ring 205 and the second conductive silver ring 206 from being short-circuited and to limit the proton conductor hydrogen pump 201 to prevent movement during operation.

[0067] More preferably, in an exemplary embodiment, when the hydrogen gas extraction chamber 3 is sleeved on the outside of the hydrogen-helium mixed gas chamber 1 and the hydrogen separation generating part 2, as shown in FIG. Figure 3 and Figure 4 As shown, the hydrogen-helium mixed gas chamber 1 includes:

[0068] Four-hole ceramic flange 101, provided with four air holes;

[0069] The hydrogen-helium mixed gas chamber 102 has one end connected to the first ceramic flange 208 of the hydrogen separation generating part 2 and the other end connected to the four-hole ceramic flange 101.

[0070] The second exhaust gas pipe 103, the second intake gas pipe 104, the first exhaust gas pipe 105, and the first intake gas pipe 106 respectively pass through the four corresponding air holes of the four-hole ceramic flange 101, wherein the first exhaust gas pipe 105 and the first intake gas pipe 106 are arranged in the hydrogen-helium mixed gas chamber 102;

[0071] like Figure 5 As shown, the hydrogen gas extraction chamber 3 includes:

[0072] A third ceramic flange 301;

[0073] The hydrogen gas extraction chamber cavity 302 is connected to the third ceramic flange 301; Figure 6 and Figure 7 As shown, the hydrogen gas extraction chamber cavity 302 is sleeved on the outside of the hydrogen-helium mixed gas chamber cavity 1 and the hydrogen separation generating part 2, the third ceramic flange 301 and the four-hole ceramic flange 101 are fixedly connected, and the second air inlet pipe 104 and the second exhaust pipe 103 are both located between the inner wall of the hydrogen gas extraction chamber cavity 302 and the outer wall of the hydrogen-helium mixed gas chamber cavity 102.

[0074] Specifically, in this exemplary embodiment, a four-hole ceramic flange 101 is used to seal the hydrogen-helium mixture chamber 1, thereby sealing the hydrogen gas. This improves the airtightness and stability of the experimental apparatus, further enhancing the overall performance of the device. The gas lines are secured to the four-hole ceramic flange 101 with high-temperature adhesive, forming an integrated component that facilitates disassembly and processing.

[0075] At the same time, for the hydrogen gas extraction chamber 3, the hydrogen gas extraction chamber 3 is formed by an airtight ceramic flange (third ceramic flange 301) sleeve arranged on the outside of the hydrogen-helium mixed gas chamber 1, and the flange end of the airtight ceramic flange sleeve is connected to the four-hole ceramic flange 101 to seal the hydrogen gas chamber 3. At the same time, the second air intake pipe 104 and the second exhaust pipe 103 are placed between the outside of the hydrogen-helium mixed gas chamber 1 and the inside of the hydrogen gas extraction chamber cavity 302 through the four-hole ceramic flange 101, and the gap between the air pipe and the four-hole ceramic flange 101 is sealed with high-temperature glue, so that the overall air tightness of the hydrogen separation test device is improved.

[0076] More preferably, in an exemplary embodiment, two conductive lead holes (not shown in the figure) are further provided on the four-hole ceramic flange 101, and the first conductive silver wire and the second conductive silver wire pass through the corresponding conductive lead holes respectively.

[0077] When this structure is used, the hydrogen separation process includes:

[0078] The hydrogen-helium mixed gas is introduced into the hydrogen-helium mixed gas chamber 102 through the first gas inlet pipe 106;

[0079] The lead-out portion 207 of the first conductive silver ring 205 is connected to an external electrical signal via a first conductive silver wire passing through the conductive lead holes of the four-hole ceramic flange 101, while the lead-out portion 207 of the second conductive silver ring 206 is connected to an external electrical signal via a second conductive silver wire passing through the conductive lead holes of the four-hole ceramic flange 101;

[0080] The hydrogen in the hydrogen-helium mixed gas introduced into the hydrogen-helium mixed gas chamber cavity 102 is extracted into the hydrogen gas extraction chamber cavity 302 of the hydrogen gas extraction chamber 3 through the proton conductor hydrogen pump 201 under the control of the electrical signal; finally, the extracted hydrogen is discharged through the second exhaust gas line pipe 103.

[0081] Better, if Figure 3 and Figure 4 As shown, in an exemplary embodiment, the air inlet of the first air intake pipe 106 is closer to the hydrogen separation generating part 2 than the exhaust port of the first exhaust pipe 105; the exhaust port of the second exhaust pipe 103 is closer to the hydrogen separation generating part 2 than the air inlet of the second air intake pipe 104.

[0082] Specifically, in this exemplary embodiment, the air inlet of the first air intake pipe 106 is closer to the hydrogen separation generating part 2 than the exhaust port of the first exhaust pipe 105, so as to facilitate the hydrogen-helium mixed gas to enter the hydrogen separation generating part 2; similarly, the exhaust port of the second exhaust pipe 103 is closer to the hydrogen separation generating part 2 than the air inlet of the second air intake pipe 104, so as to facilitate the extraction of hydrogen passing through the proton conductor hydrogen pump 201 out of the hydrogen gas extraction gas chamber 302.

[0083] In a preferred exemplary embodiment, the length of the first exhaust air pipe 105 is 1 / 3 of the first intake air pipe 106 , and the length of the second intake air pipe 104 is 1 / 3 of the second exhaust air pipe 103 .

[0084] More preferably, in an exemplary embodiment, Figure 8 As shown, when the hydrogen gas extraction chamber 3 is connected to the second ceramic flange 209, the hydrogen-helium mixed gas chamber 1 includes:

[0085] One end of the hydrogen-helium mixed gas chamber 102 is connected to the first ceramic flange 208 of the hydrogen separation generating part 2;

[0086] The first air inlet pipe 106 and the first air exhaust pipe 105 respectively pass through the bottom through holes of the hydrogen-helium mixed gas chamber 102;

[0087] The hydrogen gas extraction chamber 3 comprises:

[0088] The hydrogen gas extraction chamber body 302 has one end connected to the second ceramic flange 209 of the hydrogen separation generating part 2;

[0089] The second air inlet pipe 104 and the second air exhaust pipe 103 respectively pass through the bottom through holes of the hydrogen gas extraction chamber body 302 .

[0090] Specifically, in this exemplary embodiment, a symmetrical structure is formed with proton conductor hydrogen pump 201 as the reference plane, with the main changes being the gas chamber sealing structure and the gas pipeline layout. The hydrogen-helium mixed gas chamber 102 and the hydrogen gas extraction chamber 302 have the same structure, both being straight barrel structures.

[0091] When this structure is used, the hydrogen separation process includes:

[0092] The hydrogen-helium mixed gas is introduced into the hydrogen-helium mixed gas chamber 102 through the first gas inlet pipe 106;

[0093] The lead-out portion 207 of the first conductive silver ring 205 is connected to an external electrical signal via a first conductive silver wire, while the lead-out portion 207 of the second conductive silver ring 206 is connected to an external electrical signal via a second conductive silver wire;

[0094] The hydrogen in the hydrogen-helium mixed gas introduced into the hydrogen-helium mixed gas chamber cavity 102 is extracted into the hydrogen gas extraction chamber cavity 302 of the hydrogen gas extraction chamber 3 through the proton conductor hydrogen pump 201 under the control of the electrical signal; finally, the extracted hydrogen is discharged through the second exhaust gas line pipe 103.

[0095] More preferably, in an exemplary embodiment, the air inlet of the first air inlet pipe 106 is closer to the hydrogen separation generating unit 2 than the exhaust port of the first exhaust pipe 105; the exhaust port of the second exhaust pipe 103 is closer to the hydrogen separation generating unit 2 than the air inlet of the second air inlet pipe 104.

[0096] Specifically, in this exemplary embodiment, the air inlet of the first air intake pipe 106 is closer to the hydrogen separation generating part 2 than the exhaust port of the first exhaust pipe 105, so as to facilitate the hydrogen-helium mixed gas to enter the hydrogen separation generating part 2; similarly, the exhaust port of the second exhaust pipe 103 is closer to the hydrogen separation generating part 2 than the air inlet of the second air intake pipe 104, so as to facilitate the extraction of hydrogen passing through the proton conductor hydrogen pump 201 out of the hydrogen gas extraction gas chamber 302.

[0097] In a preferred exemplary embodiment, the length of the first exhaust air pipe 105 is 1 / 3 of the first intake air pipe 106 , and the length of the second intake air pipe 104 is 1 / 3 of the second exhaust air pipe 103 .

[0098] More preferably, in an exemplary embodiment, Figure 3 and Figure 4 As shown, the first conductive silver ring 205 is placed at the first limiting groove 210 of the first ceramic flange 208. The diameter of the first limiting groove 210 is the same as the outer diameter of the first conductive silver ring 205. The inner diameter of the first conductive silver ring 205 is the same as the inner diameter of the hydrogen-helium mixed gas chamber 102. The depth of the first limiting groove 210 is 1 / 2 of the thickness of the first conductive silver ring 205. The conductive silver ring lead-out portion 207 of the first conductive silver ring 205 is in surface contact with the first ceramic flange 208.

[0099] Similarly, the second conductive silver ring 206 is placed in the second limiting groove 212 of the second ceramic flange 209. The diameter of the second limiting groove 212 is the same as the outer diameter of the second conductive silver ring 206, the inner diameter of the second conductive silver ring 206 is the same as the inner diameter of the second limiting groove 212, and the depth of the second limiting groove 212 is 1 / 2 of the thickness of the second conductive silver ring 206. The conductive silver ring lead-out portion 207 of the second conductive silver ring 206 is in surface contact with the second ceramic flange 209.

[0100] The conductive silver ring lead-out portion 207 of the first conductive silver ring 205 is aligned with the first lead-out groove 211 of the first ceramic flange 208 , and the conductive silver ring lead-out portion 207 of the second conductive silver ring 206 is aligned with the second lead-out groove 213 of the second ceramic flange 209 , which facilitates the lead-out of the conductive silver wire.

[0101] More preferably, in an exemplary embodiment, the ceramic flanges, and the ceramic flanges and the ceramic rings are connected by ceramic screws and ceramic nuts. Each ceramic material is preferably alumina high-temperature resistant insulating ceramic.

[0102] More preferably, in an exemplary embodiment, the material of the BZYN membrane is BaZr 0.8 Yr 0.16 Ni 0.04 O 3-σ , where 0<σ<1.

[0103] More preferably, in an exemplary embodiment, the first conductive silver wire and the second conductive silver wire are connected to a 20 mA constant current source, and the operating temperature range of the hydrogen separation generating unit is 400° C.-800° C.

[0104] More preferably, in an exemplary embodiment, the hydrogen-helium mixed gas introduced into the hydrogen-helium mixed gas chamber has a hydrogen content of 0-99%. Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation. Those skilled in the art will appreciate that other variations or modifications based on the above description are possible. It is not necessary and impossible to enumerate all implementations here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A detachable hydrogen separation test device for Ni-BZYN diaphragm testing, comprising a hydrogen-helium mixed gas chamber, a hydrogen separation generator, and a hydrogen gas extraction chamber, wherein the hydrogen-helium mixed gas chamber is connected to the gas inlet of the hydrogen separation generator, and the hydrogen gas extraction chamber is connected to the exhaust of the hydrogen separation generator; characterized in that: The hydrogen separation generating unit includes: A proton conductor hydrogen pump, comprising a BZYN diaphragm and nickel electrodes located on both sides of the BZYN diaphragm; A first foam silver ring and a second foam silver ring are hot-pressed onto both sides of the proton conductor hydrogen pump respectively; A ceramic ring, sleeved on the outer ring of the proton conductor hydrogen pump; The first conductive silver ring and the second conductive silver ring are respectively located on both sides of the first foam silver ring and the second foam silver ring; the first conductive silver ring and the second conductive silver ring are both provided with a conductive silver ring lead-out portion; The first ceramic flange and the second ceramic flange are respectively located on both sides of the first conductive silver ring and the second conductive silver ring; the first ceramic flange is provided with a first limiting groove for clamping the first conductive silver ring and a first lead groove matching the conductive silver ring lead-out portion of the first conductive silver ring, and the conductive silver ring lead-out portion of the first conductive silver ring is in surface contact with the first ceramic flange; the second ceramic flange is provided with a second limiting groove for clamping the second conductive silver ring and a second lead groove matching the conductive silver ring lead-out portion of the second conductive silver ring, and the conductive silver ring lead-out portion of the second conductive silver ring is in surface contact with the second ceramic flange; The first conductive silver wire and the second conductive silver wire are connected to the first conductive silver ring and the second conductive silver ring respectively through the conductive silver ring lead-out portion; The first ceramic flange, the ceramic ring and the second ceramic flange securely seal the entire hydrogen separation generating portion; The hydrogen-helium mixed gas chamber is connected to the first ceramic flange; the hydrogen gas extraction chamber is sleeved on the outside of the hydrogen-helium mixed gas chamber and the hydrogen separation generating part, or the hydrogen gas extraction chamber is connected to the second ceramic flange.

2. The detachable hydrogen separation test device for Ni-BZYN membrane testing according to claim 1, characterized in that: When the hydrogen gas extraction chamber is sleeved on the outside of the hydrogen-helium mixed gas chamber and the hydrogen separation generating part, the hydrogen-helium mixed gas chamber includes: Four-hole ceramic flange, provided with four air holes; The hydrogen-helium mixed gas chamber cavity is connected to the first ceramic flange of the hydrogen separation generating part at one end and to the four-hole ceramic flange at the other end. The second exhaust gas pipe, the second intake gas pipe, the first exhaust gas pipe, and the first exhaust gas pipe respectively pass through the four corresponding air holes of the four-hole ceramic flange, wherein the first exhaust gas pipe and the first intake gas pipe are arranged in the cavity of the hydrogen-helium mixed gas chamber; The hydrogen gas extraction chamber comprises: Third ceramic flange; The hydrogen gas extraction gas chamber cavity is connected to the third ceramic flange; the hydrogen gas extraction gas chamber cavity is sleeved on the outside of the hydrogen-helium mixed gas chamber cavity and the hydrogen separation generating part, the third ceramic flange and the four-hole ceramic flange are fixedly connected, and the second air inlet air pipe and the second exhaust air pipe are both located between the inner wall of the hydrogen gas extraction gas chamber cavity and the outer wall of the hydrogen-helium mixed gas chamber cavity.

3. The detachable hydrogen separation test device for Ni-BZYN membrane testing according to claim 2, characterized in that: The four-hole ceramic flange is further provided with two conductive lead holes, and the first conductive silver wire and the second conductive silver wire pass through the corresponding conductive lead holes respectively.

4. The detachable hydrogen separation test device for Ni-BZYN membrane testing according to claim 2, characterized in that: The air inlet of the first air inlet pipe is closer to the hydrogen separation generating unit than the exhaust port of the first exhaust pipe; the exhaust port of the second exhaust pipe is closer to the hydrogen separation generating unit than the air inlet of the second air inlet pipe.

5. The detachable hydrogen separation test device for Ni-BZYN membrane testing according to claim 1, characterized in that: When the hydrogen gas extraction chamber is connected to the second ceramic flange, the hydrogen-helium mixed gas chamber includes: A hydrogen-helium mixed gas chamber body, one end of which is connected to the first ceramic flange of the hydrogen separation generating part; The first air inlet pipe and the first air exhaust pipe respectively pass through the bottom through hole of the hydrogen-helium mixed gas chamber; The hydrogen gas extraction chamber comprises: The hydrogen gas extraction chamber cavity has one end connected to the second ceramic flange of the hydrogen separation generating part; The second air inlet pipe and the second air exhaust pipe respectively pass through the bottom through hole of the hydrogen gas extraction chamber.

6. The detachable hydrogen separation test device for Ni-BZYN membrane testing according to claim 5, characterized in that: The air inlet of the first air inlet pipe is closer to the hydrogen separation generating unit than the exhaust port of the first exhaust pipe; the exhaust port of the second exhaust pipe is closer to the hydrogen separation generating unit than the air inlet of the second air inlet pipe.

7. A detachable hydrogen separation test device for Ni-BZYN membrane testing according to any one of claims 1 to 6, characterized in that: The ceramic flanges, as well as the ceramic flanges and the ceramic rings, are connected by ceramic screws and ceramic nuts.

8. The detachable hydrogen separation test device for Ni-BZYN membrane testing according to claim 1, characterized in that: The material of the BZYN diaphragm is BaZr 0.8 Yr 0.16 Ni 0.04 O 3-σ , where 0<σ<1.

9. The detachable hydrogen separation test device for Ni-BZYN membrane testing according to claim 1, characterized in that: The first conductive silver wire and the second conductive silver wire are connected to a 20mA constant current source, and the operating temperature range of the hydrogen separation generating part is 400°C-800°C.

10. The detachable hydrogen separation test device for Ni-BZYN membrane testing according to claim 1, characterized in that: The hydrogen-helium mixed gas introduced into the hydrogen-helium mixed gas chamber has a hydrogen content of 0-99%.

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