Testing equipment for high-temperature electrochemical energy conversion device

Abstract

The invention provides high-temperature electrochemical energy conversion device testing equipment which comprises a pressure container, a pipeline penetrating device, a wiring device, an air supply device and a temperature control device, the pressure container is used for arranging the energy conversion device and forming a pressure environment, and the pipeline penetrating device is connected with an air supply pipe and / or an exhaust pipe of the energy conversion device in a penetrating mode. The wiring device is connected with an external circuit and an internal circuit, the internal circuit is connected with the energy conversion device, the gas supply device is connected with the cathode gas inlet and the anode gas inlet through gas supply pipes, and the temperature control device adjusts the temperature of a medium in the gas supply pipes. According to the testing equipment for the high-temperature electrochemical energy conversion device, a pressure environment is provided through the pressure container, the pipeline penetrating device and the wiring device can bear the internal pressure of the pressure container, and the sealing performance of the pressure container is ensured, so that pressure relief is avoided, an accurate testing result is obtained, and the testing efficiency is improved. And the damage and leakage of the high-temperature electrochemical energy conversion device in the testing process are avoided.

Description

Technical Field

[0001] The invention relates to the field of testing devices, and in particular to testing equipment for a high-temperature electrochemical energy conversion device. Background Art

[0002] The high-temperature electrochemical energy conversion device includes a solid oxide electrochemical module, a solid oxide fuel cell and a solid oxide electrolyzer, which are in a pressure environment during operation. However, in the related art, the test equipment is in a normal pressure environment when testing the high-temperature electrochemical energy conversion device, and a pressure difference is formed between the internal and external environments of the high-temperature electrochemical energy conversion device, so that the seal of the high-temperature electrochemical energy conversion device is under pressure in one direction, which leads to the problem of seal damage and leakage in the high-temperature electrochemical energy conversion device. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems in the related art to a certain extent. To this end, an embodiment of the present invention provides a high-temperature electrochemical energy conversion device testing device, which has accurate test results and can prevent the high-temperature electrochemical energy conversion device from being damaged or leaking during the test process.

[0004] The high temperature electrochemical energy conversion device testing equipment of the embodiment of the present invention comprises:

[0005] A pressure vessel, the inner cavity of which is used to set a high-temperature electrochemical energy conversion device and can form a pressure environment;

[0006] A pipeline penetration device, the pipeline penetration device is arranged on the pressure vessel, and the pipeline penetration device is used to penetrate the gas supply pipe and / or exhaust pipe connected to the high-temperature electrochemical energy conversion device;

[0007] A wiring device, the wiring device is arranged on the pressure vessel, the wiring device is used to connect an external circuit and an internal circuit, and the internal circuit is connected to the high-temperature electrochemical energy conversion device;

[0008] A gas supply device, wherein the gas supply device is connected to a cathode gas inlet and an anode gas inlet of the high-temperature electrochemical energy conversion device through the gas supply pipe;

[0009] A temperature control device is arranged on the air supply pipe to adjust the temperature of the medium in the air supply pipe.

[0010] The high-temperature electrochemical energy conversion device testing equipment of the embodiment of the present invention places the high-temperature electrochemical energy conversion device in a pressure vessel to provide a pressure environment for the high-temperature electrochemical energy conversion device through the pressure vessel. The pressure vessel is provided with a pipe penetration device for penetrating a gas supply pipe and / or an exhaust pipe and a wiring device for connecting external lines and internal lines. The pipe penetration device and the wiring device can withstand the internal pressure of the pressure vessel and ensure the sealing of the pressure vessel to avoid pressure relief, thereby obtaining accurate test results and avoiding damage and leakage of the high-temperature electrochemical energy conversion device during the test.

[0011] In some embodiments, the pipeline penetration device includes:

[0012] A shell, wherein the shell is provided with an inner cavity, the shell is arranged on the pressure vessel, and the inner cavity of the shell is communicated with the inner cavity of the pressure vessel, and the corresponding air supply pipe or the exhaust pipe enters the inner cavity of the shell from the inner cavity of the pressure vessel and is passed through the shell;

[0013] A refractory sleeve is arranged in the inner cavity of the shell and is sleeved on the corresponding air supply pipe or the exhaust pipe.

[0014] In some embodiments, the housing comprises:

[0015] a first connecting pipe, one end of which is arranged on the pressure vessel, and a lumen of the first connecting pipe forms an inner cavity of the shell;

[0016] The first flange is arranged at the other end of the first connecting pipe and penetrates the corresponding air supply pipe or the exhaust pipe. The first flange has a compensation part, and the compensation part can be expanded and contracted along the lateral direction of the first flange.

[0017] In some embodiments, the compensation portion is in the shape of an arc protruding along the longitudinal direction of the first flange, and the compensation portion is deformable.

[0018] In some embodiments, the compensation portion is provided with a liquid cooling interlayer.

[0019] In some embodiments, the wiring device comprises:

[0020] A mounting portion, the mounting portion being arranged on the pressure vessel;

[0021] A conductive bolt, which is passed through the mounting portion and sealed with the mounting portion, one end of the conductive bolt being connected to the internal circuit, and the other end of the conductive bolt being connected to the external circuit;

[0022] A sealing cover, which is arranged on the mounting portion and covers the other end of the conductive bolt;

[0023] A sealing member is connected between the cover and the mounting portion, and the external circuit is passed through the sealing member.

[0024] In some embodiments, the wiring device further includes an insulating cover, which is disposed on the mounting portion and covers the other end of the conductive bolt, the insulating cover having a through hole for the external line to pass through, and the sealing cover covers the insulating cover.

[0025] In some embodiments, the seal comprises:

[0026] A first sealing ring, wherein the first sealing ring is arranged on the mounting portion, and an end surface of the first sealing ring facing away from the mounting portion is a concave-convex surface;

[0027] The second sealing ring is arranged on the sealing cover, the end surface of the second sealing ring facing away from the sealing cover is a concave-convex surface, the concave-convex surface of the second sealing ring is matched with the concave-convex surface of the first sealing ring and clamps the external circuit.

[0028] In some embodiments, the high temperature electrochemical energy conversion device testing equipment further comprises:

[0029] A box body, wherein the box body is arranged in the pressure vessel, the inner cavity of the box body is used to arrange the high-temperature electrochemical energy conversion device, the gas supply pipe, the exhaust pipe and the internal line are all passed through the box body, and the box body is provided with a pressure channel;

[0030] A pressure-applying device is disposed in the pressure vessel, and one end of the pressure-applying device is disposed in the pressure channel to apply pressure to the high-temperature electrochemical energy conversion device.

[0031] In some embodiments, the pressure-applying device comprises a pneumatic telescopic cylinder, and the pneumatic telescopic cylinder comprises:

[0032] A piston rod, one end of which is disposed in the pressure channel, and a first liquid cooling channel is disposed in the piston rod;

[0033] A cylinder barrel is sleeved on the outer periphery of the piston rod, and a second liquid cooling channel is provided at one end of the cylinder barrel away from the box body.

[0034] In some embodiments, the box body is provided with a guide tube, the inner wall of the guide tube is provided with a slideway, the outer peripheral surface of one end of the pressure-applying device is provided with a slider, the slider is connected to the slideway and can move axially along the guide tube relative to the slideway.

[0035] The high-temperature electrochemical energy conversion device testing equipment further includes a lead device, which is arranged on the box body and is used for the internal circuit to pass through. The lead device includes:

[0036] A sleeve, wherein the sleeve is arranged on the box body;

[0037] A heat insulation plate, wherein the heat insulation plate is arranged in the sleeve, and the outer circumference of the heat insulation plate is connected to the inner circumference of the sleeve. There are multiple heat insulation plates, and the multiple heat insulation plates are arranged at intervals along the axial direction of the sleeve. The internal circuit is sealed and penetrated through the multiple heat insulation plates in sequence.

[0038] In some embodiments, one end of the sleeve is connected to the box body;

[0039] The lead device also includes:

[0040] An end plate, the end plate being arranged at the other end of the sleeve, and the end plate being provided with a mounting hole penetrating the end plate along the axial direction of the sleeve;

[0041] A sealing component is embedded in the mounting hole, and includes a first sealing block and a second sealing block. The first sealing block and the second sealing block both have concave and convex surfaces. The concave and convex surface of the first sealing block is matched with the concave and convex surface of the second sealing block to abut against each other and clamp the internal circuit.

[0042] In some embodiments, a third liquid cooling channel is provided in the wall of the sleeve; and / or

[0043] The lead-in device also includes a threading plate, which is arranged at one end of the sleeve connected to the box body, and the threading plate is provided with a threading hole that passes through the threading plate along the axial direction of the sleeve, and the internal line is passed through the threading hole.

[0044] In some embodiments, the high temperature electrochemical energy conversion device testing equipment further comprises:

[0045] A guide rail, the guide rail is arranged on the inner wall surface of the pressure vessel and extends along the length direction of the pressure vessel, the guide rail is connected to the temperature control device so that the temperature control device can move relative to the pressure vessel along the length direction of the pressure vessel, and the guide rail is provided with a mounting groove;

[0046] A limiter is arranged on the guide rail and can extend out of and enter the installation groove to stop and release the temperature control device.

[0047] In some embodiments, a temperature measuring element is provided at one end of the gas supply pipe connected to the high-temperature electrochemical energy conversion device, and the temperature measuring element is electrically connected to the temperature control device;

[0048] The air supply pipe is provided with a pressure valve;

[0049] The gas supply device comprises:

[0050] an anode gas supply assembly, the anode gas supply assembly comprising an anode mixer, and a hydrogen supply pipe, a methane supply pipe, a carbon monoxide supply pipe, a carbon dioxide supply pipe and an anode nitrogen supply pipe connected to the anode mixer, the anode mixer being connected to the anode gas inlet of the high temperature electrochemical energy conversion device through corresponding gas supply pipes;

[0051] A cathode gas supply assembly, the cathode gas supply assembly comprising a cathode mixer, and an oxygen supply pipe and a cathode nitrogen supply pipe connected to the cathode mixer, the cathode mixer being connected to the cathode gas inlet of the high-temperature electrochemical energy conversion device through corresponding gas supply pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 is a structural schematic diagram of the high-temperature electrochemical energy conversion device testing equipment of an embodiment of the present invention;

[0053] Figure 2 2 is a schematic diagram of the structure of a pipeline threading device according to an embodiment of the present invention;

[0054] Figure 3 is a schematic structural diagram of a wiring device in an embodiment of the present invention;

[0055] Figure 4 yes Figure 3 Schematic diagram of the structure of the middle seal;

[0056] Figure 5 is a schematic diagram of the connection structure between the box body and the pressure-applying device in an embodiment of the present invention;

[0057] Figure 6 is a partial cross-sectional view of the connection between the box body and the pressure-applying device in an embodiment of the present invention;

[0058] Figure 7 is a schematic structural diagram of a lead-in device in an embodiment of the present invention;

[0059] Figure 8 Schematic diagram of the connection structure between the temperature control device and the guide rail in an embodiment of the present invention;

[0060] Fig. 9 is a schematic diagram of the structure of a limiter in an embodiment of the present invention;

[0061] Fig.10 Schematic diagram of the connection structure between the limiter and the guide rail in an embodiment of the present invention.

[0062] Reference numerals:

[0063] 1. Pressure vessel; 2. Pipeline installation device; 21. Shell; 211. First pipe; 212. First flange; 213. Compensation part; 214. Liquid cooling interlayer; 22. Refractory sleeve; 3. Gas supply pipe; 4. Exhaust pipe; 5. Wiring device; 51. Mounting part; 52. Conductive bolt; 53. Cover; 54. Seal; 541. First sealing ring; 542. Second sealing ring; 55. Insulation cover; 6. External circuit; 7. Internal circuit; 8. Gas supply device; 81. Anode mixer; 82. Cathode pole mixer; 9, temperature control device; 91, heating furnace; 92, insulation shell; 10, box body; 101, guide pipe; 102, slideway; 11, pressure device; 111, slider; 12, lead device; 121, sleeve; 122, insulation board; 123, end plate; 124, sealing assembly; 125, third liquid cooling channel; 126, threading plate; 127, limit ring; 13, guide rail; 14, limiter; 141, limit block; 142, elastic member; 15, temperature measuring element; 16, pressure valve. DETAILED DESCRIPTION

[0064] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0065] Reference below Figure 1-Figure 9 A high temperature electrochemical energy conversion device testing apparatus according to an embodiment of the present invention is described.

[0066] like Figure 1-Figure 9 As shown, the high-temperature electrochemical energy conversion device testing equipment of the embodiment of the present invention includes a pressure vessel 1, a pipeline installation device 2, a wiring device 5, a gas supply device 8 and a temperature control device 9.

[0067] The inner cavity of the pressure vessel 1 is used to set a high-temperature electrochemical energy conversion device and can form a pressure environment. Preferably, the pressure vessel 1 is provided with a container door for opening and closing the pressure vessel 1, and the pressure vessel 1 is connected to a pressurizing device to form a pressure environment in the inner cavity of the pressure vessel 1 and adjust the pressure value in the pressure vessel 1. At the same time, the pressure vessel 1 has a safety valve and a pressure relief valve.

[0068] The pipeline penetration device 2 is provided on the pressure vessel 1, and the pipeline penetration device 2 is used to penetrate the gas supply pipe 3 and / or the exhaust pipe 4 connected to the high-temperature electrochemical energy conversion device. The wiring device 5 is provided on the pressure vessel 1, and the wiring device 5 is used to connect the external line 6 and the internal line 7, and the internal line 7 is connected to the high-temperature electrochemical energy conversion device. The gas supply device 8 is connected to the cathode gas inlet and the anode gas inlet of the high-temperature electrochemical energy conversion device through the gas supply pipe 3. The temperature control device 9 is provided on the gas supply pipe 3 to adjust the temperature of the medium in the gas supply pipe 3.

[0069] Specifically, Figure 1-Figure 4 As shown, the pressure vessel 1 is preferably a pressure tank, and the inner cavity of the pressure vessel 1 is used to set the high-temperature electrochemical energy conversion device and can form a pressure environment so that the high-temperature electrochemical energy conversion device is in the pressure environment.

[0070] The pressure vessel 1 is provided with a pipe penetration device 2, and the gas supply pipe 3 and / or exhaust pipe 4 connected to the high-temperature electrochemical energy conversion device are penetrated on the corresponding pipe penetration device 2 to extend to the outside of the pressure vessel 1 through the pipe penetration device 2. The gas supply pipe 3 is connected to the gas supply device 8, and the cathode gas inlet and the anode gas inlet of the high-temperature electrochemical energy conversion device are respectively connected to the gas supply device 8 through the corresponding gas supply pipe 3 to provide cathode gas and anode gas to the high-temperature electrochemical energy conversion device. The exhaust pipe 4 is connected to the micro-turbine. While allowing the gas supply pipe 3 and / or the exhaust pipe 4 to pass out, the pipe penetration device 2 can also withstand the pressure in the pressure vessel 1 and ensure the sealing.

[0071] The gas supply pipe 3 is provided with a temperature control device 9, which is used to adjust the temperature of the medium in the gas supply pipe 3 to ensure that the temperature of the medium in the gas supply pipe 3 meets the requirements of the high-temperature electrochemical energy conversion device.

[0072] The pressure vessel 1 is also provided with a wiring device 5, the inner end of the wiring device 5 located in the inner cavity of the pressure vessel 1 is connected to the internal line 7, the internal line 7 is connected to the high-temperature electrochemical energy conversion device, and the outer end of the wiring device 5 located outside the pressure vessel 1 is connected to the external line 6, so that the external line 6, the wiring device 5, the internal line 7 and the high-temperature electrochemical energy conversion device are electrically connected in sequence, and the external line 6 is connected to a data acquisition device or a data analysis device to collect, record and analyze the data output by the high-temperature electrochemical energy conversion device. While connecting the external line 6 and the internal line 7 for electrical signal transmission, the wiring device 5 can also withstand the pressure in the pressure vessel 1 and ensure sealing.

[0073] The high-temperature electrochemical energy conversion device comprises a solid oxide electrochemical module, a solid oxide fuel cell and a solid oxide electrolyzer, preferably a solid oxide fuel cell stack.

[0074] The high-temperature electrochemical energy conversion device testing equipment of the embodiment of the present invention places the high-temperature electrochemical energy conversion device in a pressure vessel to provide a pressure environment for the high-temperature electrochemical energy conversion device through the pressure vessel. The pressure vessel is provided with a pipe penetration device for penetrating a gas supply pipe and / or an exhaust pipe and a wiring device for connecting external lines and internal lines. The pipe penetration device and the wiring device can withstand the internal pressure of the pressure vessel and ensure the sealing of the pressure vessel to avoid pressure relief, thereby obtaining accurate test results and avoiding damage and leakage of the high-temperature electrochemical energy conversion device during the test.

[0075] In some embodiments, the pipe penetration device 2 includes a shell 21 and a fire-resistant sleeve 22 .

[0076] The shell 21 is provided with an inner cavity, and the shell 21 is provided on the pressure vessel 1, and the inner cavity of the shell 21 is communicated with the inner cavity of the pressure vessel 1, and the corresponding air supply pipe 3 or exhaust pipe 4 enters the inner cavity of the shell 21 from the inner cavity of the pressure vessel 1, and is penetrated on the shell 21. The refractory sleeve 22 is provided in the inner cavity of the shell 21, and is sleeved on the corresponding air supply pipe 3 or exhaust pipe 4.

[0077] like Figure 2 As shown, the pipe penetration device 2 includes a shell 21 and a refractory sleeve 22. The shell 21 is preferably barrel-shaped. The exhaust pipe 4 extends from the inner cavity of the pressure vessel 1 to the inner cavity of the shell 21, and then is penetrated through the axial wall of the shell 21, and then extends to the outside of the pressure vessel 1. The circumferential wall of the shell 21 surrounds the outer circumference of the exhaust pipe 4 and is arranged at intervals with the exhaust pipe 4. The refractory sleeve 22 is located in the inner cavity of the shell 21 and is sleeved on the outer circumference of the exhaust pipe 4. The refractory sleeve 22 is connected between the outer circumferential surface of the exhaust pipe 4 and the inner circumferential surface of the shell 21, and abuts against the axial inner end surface of the shell 21.

[0078] Preferably, the refractory sleeve 22 is made of aluminum silicate fiber.

[0079] The exhaust gas discharged from the high-temperature electrochemical energy conversion device has a high temperature, which will cause the exhaust pipe 4 to have a high temperature. The refractory sleeve 22 can isolate the temperature of the exhaust pipe 4 to prevent the temperature of the exhaust pipe 4 from being transferred to the shell 21 and the pressure vessel 1 to cause local thermal stress damage, resulting in pressure relief.

[0080] It can be understood that the pipeline penetration device 2 can also be penetrated on the air supply pipe 3. The temperature control device 9 provided on the air supply pipe 3 can be located in the inner cavity of the pressure vessel 1 or outside the pressure vessel 1. When the temperature control device 9 is located outside the pressure vessel 1, the medium in the air supply pipe 3 is first heated by the temperature control device 9 and then enters the pressure vessel 1. Therefore, the air supply pipe 3 also has a certain temperature when passing through the wall of the pressure vessel 1. At this time, a pipeline penetration device 2 corresponding to the air supply pipe 3 is provided on the pressure vessel 1, and the air supply pipe 3 is penetrated on the corresponding pipeline penetration device 2 so as to pass through the wall of the pressure vessel 1 through the pipeline penetration device 2.

[0081] In some embodiments, the housing 21 includes a first pipe 211 and a first flange 212 .

[0082] One end of the first connecting pipe 211 is arranged on the pressure vessel 1, and the tube cavity of the first connecting pipe 211 forms the inner cavity of the shell 21. The first flange 212 is arranged at the other end of the first connecting pipe 211, and the corresponding air supply pipe 3 or exhaust pipe 4 is passed through. The first flange 212 has a compensation part 213, and the compensation part 213 can be expanded and contracted along the lateral direction of the first flange 212.

[0083] like Figure 2 As shown, the shell 21 includes a first connecting pipe 211 and a first flange 212. The left end of the first connecting pipe 211 is arranged on the pressure vessel 1 to communicate with the inner cavity of the pressure vessel 1. The first connecting pipe 211 surrounds the outer periphery of the exhaust pipe 4 and is arranged at intervals with the exhaust pipe 4. The refractory sleeve 22 is connected between the inner circumference of the first connecting pipe 211 and the outer circumference of the exhaust pipe 4. The right end of the first connecting pipe 211 is provided with a first flange 212, and the first flange 212 is connected to the right end of the first connecting pipe 211 by bolts. The exhaust pipe 4 is passed through the first flange 212, and the right end of the refractory sleeve 22 abuts against the inner end surface of the first flange 212.

[0084] The first flange 212 has a compensation portion 213, and the compensation portion 213 can be expanded and contracted in the lateral direction of the first flange 212. Since the exhaust pipe 4 is passed through the first flange 212, the exhaust pipe 4 is in contact with the first flange 212, and a certain amount of heat is transferred from the exhaust pipe 4 to the first flange 212, causing the first flange 212 to generate thermal expansion. When the first flange 212 generates thermal expansion, the compensation portion 213 expands and contracts in the lateral direction, thereby preventing the lateral force of the bolts connecting the first flange 212 and the first connecting pipe 211 from being too large, resulting in pressure relief in the first flange 212 and between the first flange 212 and the first connecting pipe 211.

[0085] It should be noted that the lateral direction of the first flange 212 is orthogonal to the axial direction of the first flange 212 .

[0086] In some embodiments, the compensation portion 213 is in an arc shape protruding along the longitudinal direction of the first flange 212 , and the compensation portion 213 is deformable.

[0087] like Figure 2 As shown in FIG. 1 , the first flange 212 is in the shape of an arc protruding in the longitudinal direction, and preferably extends in the radial direction of the first flange 212 to form the compensation portion 213. The compensation portion 213 may protrude toward the refractory sleeve 22, or may protrude in a direction away from the refractory sleeve 22, preferably in a direction away from the refractory sleeve 22. In other words, the compensation portion 213 protrudes toward the refractory sleeve 22. Figure 2 Rightward projection shown.

[0088] The arc-shaped compensation portion 213 can undergo a certain elastic deformation, so as to be able to undergo a certain stretching and contraction along the extension direction of the compensation portion 213 , thereby deforming when the first flange 212 undergoes thermal expansion to avoid pressure relief.

[0089] It is understandable that the compensation portion 213 is not limited to being an arc-shaped protruding along the longitudinal direction. In other embodiments, the first flange 212 includes two stacked or plug-in components, and the stacked or plug-in parts of the two components can move relative to each other to form the compensation portion 213.

[0090] In some implementations, the compensation portion 213 is provided with a liquid cooling interlayer 214 .

[0091] like Figure 2 As shown, a liquid cooling interlayer 214 is provided in the arc-shaped compensation portion 213. The liquid cooling interlayer 214 is preferably an arc-shaped one adapted to the compensation portion 213. The liquid cooling interlayer 214 is used to pass a liquid cooling medium to cool the compensation portion 213 and the first flange 212 as a whole. It should be noted that a certain distance needs to be maintained between the liquid cooling interlayer 214 and the exhaust pipe 4 to avoid cooling the medium in the exhaust pipe 4.

[0092] In some embodiments, the wiring device 5 includes a mounting portion 51 , a conductive bolt 52 , a cover 53 , and a seal 54 .

[0093] The mounting portion 51 is provided on the pressure vessel 1. The conductive bolt 52 is passed through the mounting portion 51 and is sealed and connected to the mounting portion 51. One end of the conductive bolt 52 is connected to the internal circuit 7, and the other end of the conductive bolt 52 is connected to the external circuit 6. The cover 53 is provided on the mounting portion 51 and covers the other end of the conductive bolt 52. The sealing member 54 is connected between the cover 53 and the mounting portion 51, and the external circuit 6 is passed through the sealing member 54.

[0094] like Figure 3 As shown, the wiring device 5 includes a mounting portion 51, a conductive bolt 52, a cover 53 and a seal 54. The mounting portion 51 is arranged on the pressure vessel 1, and the mounting portion 51 is penetrated by the conductive bolt 52 and is sealed with the conductive bolt 52. The inner end of the conductive bolt 52 facing the inner cavity of the pressure vessel 1 is connected to the internal circuit 7, and the internal circuit 7 is connected to the high-temperature electrochemical energy conversion device. The outer end of the conductive bolt 52 facing away from the inner cavity of the pressure vessel 1 is connected to the external circuit 6.

[0095] A cover 53 is provided at the outer end of the mounting portion 51 facing away from the inner cavity of the pressure vessel 1. The cover 53 and the mounting portion 51 are sealed by a seal 54. One end of the conductive bolt 52 connected to the external circuit 6 is located in the cover space of the cover 53. The external circuit 6 is passed through the seal 54 to extend from the outer end of the conductive bolt 52 to the outside of the cover 53 and the mounting portion 51.

[0096] Preferably, Figure 3 As shown, the mounting portion 51 and the sealing cover 53 are both flange covers, and the wiring device 5 also includes a second connecting pipe, the lower end of which is arranged on the pressure vessel 1 and communicates with the inner cavity of the pressure vessel 1, and the top of the second connecting pipe is provided with a flange cover serving as the mounting portion 51.

[0097] It can be understood that the mounting portion is not limited to being a flange cover. In other embodiments, the mounting portion is embedded in a hole opened in the wall of the pressure vessel so that the mounting portion serves as a part of the pressure vessel.

[0098] Preferably, both inner and outer ends of the conductive bolt 52 are provided with insulating sealing gaskets, which abut against the end surface of the mounting portion 51 to seal the mounting portion 51 and the conductive bolt 52 and play an insulating role.

[0099] Double sealing by the gasket and the seal 54 ensures that pressure relief is avoided.

[0100] In some embodiments, the wiring device 5 further includes an insulating cover 55 , which is disposed on the mounting portion 51 and covers the other end of the conductive bolt 52 . The insulating cover 55 has a through hole for the external line 6 to pass through, and the sealing cover 53 covers the insulating cover 55 .

[0101] like Figure 2 As shown, the outer end surface of the mounting portion 51 is provided with an insulating cover 55, and preferably, the mounting portion 51 is threadedly connected to the insulating cover 55. The outer end of the conductive bolt 52 is covered in the insulating cover 55, and the insulating cover 55 is provided with a through hole for the external line 6 to pass through, and the insulating cover 55 is covered in the cover 53.

[0102] Safe isolation insulation is achieved by the insulating cover 55 .

[0103] In some embodiments, the seal 54 includes a first sealing ring 541 and a second sealing ring 542 .

[0104] The first sealing ring 541 is disposed on the mounting portion 51, and the end surface of the first sealing ring 541 facing away from the mounting portion 51 is a concave-convex surface. The second sealing ring 542 is disposed on the sealing cover 53, and the end surface of the second sealing ring 542 facing away from the sealing cover 53 is a concave-convex surface. The concave-convex surface of the second sealing ring 542 is matched with the concave-convex surface of the first sealing ring 541, and the external circuit 6 is sandwiched.

[0105] like Figure 3 and Figure 4 As shown, an annular groove is provided on the outer end surface of the mounting portion 51 , and the inner end of the first sealing ring 541 is embedded in the annular groove of the mounting portion 51 . The outer end surface of the first sealing ring 541 is a concave-convex surface.

[0106] An annular groove is provided on the inner end surface of the sealing cover 53 , and the outer end of the second sealing ring 542 is embedded in the annular groove of the sealing cover 53 . The inner end surface of the second sealing ring 542 is a concave-convex surface.

[0107] The concave-convex surface of the first sealing ring 541 and the concave-convex surface of the second sealing ring 542 are arranged opposite to each other and fit against each other. Preferably, the concave-convex surface of the first sealing ring 541 has a plurality of protrusions and recesses arranged one by one along its circumference, and the concave-convex surface of the second sealing ring 542 has a plurality of protrusions and recesses arranged one by one along its circumference. The protrusions of the first sealing ring 541 fit in the recesses of the second sealing ring 542 one by one, and the protrusions of the second sealing ring 542 fit in the recesses of the first sealing ring 541 one by one, so as to have a stronger sealing effect.

[0108] The external circuit 6 is clamped between the concave-convex surface of the first sealing ring 541 and the concave-convex surface of the second sealing ring 542. In other words, the external circuit 6 first passes through the through hole of the insulating cover 55 from the outer end of the conductive bolt 52, and then passes between the concave-convex surface of the first sealing ring 541 and the concave-convex surface of the second sealing ring 542 to reach the outside of the mounting portion 51 and the cover 53.

[0109] The first sealing ring 541 and the second sealing ring 542 can ensure the sealing between the mounting portion 51 and the cover 53 while allowing a gap for the external line 6 to pass therethrough. At the same time, the first sealing ring 541 and the second sealing ring 542 can also ensure the sealing between the external line 6 to avoid pressure relief.

[0110] It can be understood that the protrusions and recesses are not limited to being arranged along the circumference of the corresponding first sealing ring 541 and the circumference of the second sealing ring 542. In other embodiments, the concave-convex surface of the first sealing ring 541 has a plurality of protrusions and recesses arranged one by one along its radial direction, and the concave-convex surface of the second sealing ring 542 has a plurality of protrusions and recesses arranged one by one along its radial direction.

[0111] In some embodiments, the high temperature electrochemical energy conversion device testing equipment of the embodiments of the present invention further includes a box body 10 and a pressure applying device 11 .

[0112] The box body 10 is arranged in the pressure vessel 1, and the inner cavity of the box body 10 is used to set the high-temperature electrochemical energy conversion device and form a pressure environment. Preferably, the box body 10 is connected to the pressurizing device outside the pressure vessel 1 through a pipeline to adjust the pressure value in the box body 10. At the same time, the inner cavity of the box body 10 has a higher temperature. The air supply pipe 3, the exhaust pipe 4 and the internal line 7 are all penetrated on the box body 10, and the box body 10 is provided with a pressure channel. The pressure device 11 is arranged in the pressure vessel 1, and one end of the pressure device 11 is arranged in the pressure channel to pressurize the high-temperature electrochemical energy conversion device.

[0113] like Figure 1 and Figure 5As shown, the box body 10 and the pressure-applying device 11 are both arranged in the pressure vessel 1. Preferably, the box body 10 and the pressure-applying device 11 are supported in the pressure vessel 1 by a bracket. The inner cavity of the box body 10 is used to set a high-temperature electrochemical energy conversion device. The gas supply pipe 3, the exhaust pipe 4 and the internal line 7 are all passed through the box body 10. A pressure channel is provided at one end of the box body 10. Preferably, the high-temperature electrochemical energy conversion device is a fuel cell stack, and the pressure channel is located above the fuel cell stack along the stacking direction of the fuel cell stack.

[0114] The outer wall of the box body 10 is connected to the pressure device 11. The pressure end of the pressure device 11 is arranged in the pressure channel and can enter the box body 10 through the pressure channel to abut the battery stack to apply pressure to the battery stack for testing.

[0115] The box body 10 serves to set up a high-temperature electrochemical energy conversion device and can prevent the leakage of combustible gas.

[0116] In some embodiments, the pressure device 11 includes a pneumatic telescopic cylinder, which includes a piston rod and a cylinder barrel. One end of the piston rod is arranged in the pressure channel, and a first liquid cooling channel is arranged in the piston rod. The cylinder barrel is sleeved on the outer circumference of the piston rod, and a second liquid cooling channel is arranged at one end of the cylinder barrel away from the box body 10.

[0117] like Figure 5 As shown, the pressure-applying device 11 is preferably a pneumatic telescopic cylinder, which is arranged in the vertical direction and is arranged on the top of the box body 10. The pneumatic telescopic cylinder includes a connected piston rod and a cylinder barrel, and an air cavity is arranged in the cylinder barrel. Under the pressure of the air cavity, the piston rod can move in the vertical direction relative to the cylinder barrel. Specifically, the upper end of the piston rod is arranged in the cylinder barrel, and the lower end of the piston rod is arranged in the pressure-applying channel, and can enter the box body 10 to pressurize the battery stack. The air cavity of the cylinder barrel is connected to the gas supply equipment arranged outside the pressure vessel 1 through a gas pipeline.

[0118] A first liquid cooling channel is provided in the piston rod. Preferably, the first liquid cooling channel extends from the top of the piston rod to the bottom of the piston rod, extends horizontally at the bottom of the piston rod, and then returns to the top of the piston rod. Since the lower end of the piston rod is in contact with the gas in the box body 10, and the gas in the box body 10 has a higher temperature, the piston rod can be cooled through the first liquid cooling channel.

[0119] The upper end of the cylinder is provided with a second liquid cooling channel, which extends along the circumference of the cylinder. Preferably, the second liquid cooling channel is provided on the periphery of the air cavity to cool the upper end of the cylinder and the air cavity. A small amount of gas in the box body 10 overflows through the gap between the piston rod and the pressure channel, and rises to the air cavity through the inside of the pneumatic telescopic cylinder. The upper end of the cylinder and the air cavity are cooled through the second liquid cooling channel. The high temperature in the box body 10 can be completely isolated from being transmitted to the outside through the first liquid cooling channel and the second liquid cooling channel, while avoiding affecting the sliding seal of the piston rod.

[0120] Preferably, the piston rod is made of high-temperature ceramic material, and the piston rod sliding seal is sealed with a packing ring, including a radial ring and a tangential ring. The radial ring is placed on the high-pressure side, and the gas enters the groove box of the packing ring from the axial gap and the radial gap. The gas pressure forms a seal between the tangential ring and the piston rod surface and the side of the ring groove. At the same time, the upper part of the piston rod and the cylinder barrel are sealed with an O-ring to ensure sealing.

[0121] In some embodiments, the box body 10 is provided with a guide tube 101, the inner wall of the guide tube 101 is provided with a slideway 102, and the outer peripheral surface of one end of the pressure-applying device 11 is provided with a slider 111, which is connected to the slideway 102 and can move axially along the guide tube 101 relative to the slideway 102.

[0122] like Figure 5 and Figure 6 As shown, a guide tube 101 extending upward is provided at the top of the box body 10, and the guide tube 101 surrounds the outer circumference of the lower end of the piston rod. Preferably, the top of the guide tube 101 is connected to the bottom of the cylinder.

[0123] The inner circumference of the guide tube 101 is provided with a slideway 102 extending in the vertical direction, and the outer circumference of the lower end of the piston rod is provided with a slider 111, which is connected to the slideway 102 and can move relative to the slideway 102 in the vertical direction under the guidance of the slideway 102.

[0124] A small amount of gas overflowing from the box body 10 moves upward through the gap between the guide tube 101 and the lower end of the piston rod, enters the cylinder, and finally reaches the air cavity.

[0125] Specifically, Figure 6 As shown, the inner circumference of the guide tube 101 is provided with two L-shaped protrusions, which extend in the vertical direction. The two L-shaped protrusions are relatively arranged and spaced apart along the circumference of the guide tube 101 to form a T-shaped slideway 102. The outer circumference of the lower end of the piston rod is provided with a groove, which extends in the vertical direction. The two L-shaped protrusions are located in the groove, and a T-shaped slider 111 is provided on the bottom surface of the groove, which fits in the T-shaped slideway 102.

[0126] In some embodiments, the high temperature electrochemical energy conversion device testing equipment of the embodiments of the present invention further includes a lead device 12 , which is disposed on the box body 10 , and is used for the internal circuit 7 to pass through.

[0127] The lead-in device 12 includes a sleeve 121 and a heat insulation board 122. The sleeve 121 is arranged on the box body 10. The heat insulation board 122 is arranged in the sleeve 121, and the outer peripheral surface of the heat insulation board 122 is connected to the inner peripheral surface of the sleeve 121. There are multiple heat insulation boards 122, and the multiple heat insulation boards 122 are arranged at intervals along the axial direction of the sleeve 121. The internal circuit 7 is sealed and penetrated on the multiple heat insulation boards 122 in sequence.

[0128] like Figure 7 As shown, the box body 10 is provided with a lead device 12 for the internal circuit 7 to pass through, so that the internal circuit 7 can be connected between the high-temperature electrochemical energy conversion device and the wiring device 5.

[0129] The lead device 12 includes a sleeve 121 and a heat insulation plate 122. One end of the sleeve 121 is arranged on the box body 10. The inner cavity of the sleeve 121 is connected to the inner cavity of the box body 10. A plurality of heat insulation plates 122 are arranged in the sleeve 121. The outer peripheral surface of the heat insulation plate 122 is connected to the inner peripheral surface of the sleeve 121. The plurality of heat insulation plates 122 are arranged at intervals along the axial direction of the sleeve 121. Therefore, a heat insulation chamber is formed between two connected heat insulation plates 122. The high temperature in the box body 10 is prevented from being transmitted to the outside through the plurality of heat insulation chambers.

[0130] The internal circuit 7 is sequentially passed through a plurality of heat insulation boards 122 and is sealed with each heat insulation board 122, thereby preventing the heat insulation chamber from being connected and reducing the high temperature insulation effect. Preferably, the heat insulation board 122 is made of high temperature ceramic material, and each heat insulation board 122 is cast on the internal circuit 7 to achieve a sealed connection.

[0131] Furthermore, in order to facilitate fixing the positions of multiple insulation boards 122, the inner wall surface of the sleeve 121 is provided with a step and a removable limit ring 127, and a corresponding step or a corresponding limit ring 127 is provided between two adjacent insulation boards 122, so that an insulation chamber is formed between the two insulation boards 122 through the step and the limit ring 127.

[0132] In some embodiments, one end of the sleeve 121 is connected to the box body 10. The lead device 12 also includes an end plate 123 and a sealing assembly 124. The end plate 123 is provided at the other end of the sleeve 121, and the end plate 123 is provided with a mounting hole that penetrates the end plate 123 along the axial direction of the sleeve 121. The sealing assembly 124 is embedded in the mounting hole, and the sealing assembly 124 includes a first sealing block and a second sealing block, and the first sealing block and the second sealing block both have a concave-convex surface, and the concave-convex surface of the first sealing block is matched with the concave-convex surface of the second sealing block, and the internal circuit 7 is clamped.

[0133] like Figure 7As shown, the lower end of the sleeve 121 is connected to the box body 10, and the upper end of the sleeve 121 is provided with an end plate 123, so that the lower end of the sleeve 121 is connected to the inner cavity of the box body 10, and the upper end is closed. A plurality of heat insulation plates 122 are arranged at intervals in the vertical direction and are all located below the end plate 123. The uppermost heat insulation plate 122 is arranged at intervals with the end plate 123, so that a heat insulation chamber is also formed between the uppermost heat insulation plate 122 and the end plate 123.

[0134] The end plate 123 is provided with a mounting hole which passes through the end plate 123 in the vertical direction, and a sealing assembly 124 is embedded in the mounting hole. The outer circumference of the end plate 123 is threadedly connected to the inner circumference of the sleeve 121, and a sealing ring is provided.

[0135] The top surface of the end plate 123 is provided with a cover, which is preferably threadedly connected to the end plate 123, and is covered on the sealing assembly 124, and is provided with a hole for the internal line 7 to pass through. The bottom surface of the end plate 123 is provided with a boss, and the sealing assembly 124 is carried on the boss.

[0136] The sealing assembly 124 includes a first sealing block and a second sealing block which are radially abutted against the mounting hole. Both the first sealing block and the second sealing block have concave and convex surfaces extending in the vertical direction. The concave and convex surfaces of the first sealing block and the second sealing block are arranged opposite to each other and abutted against each other in the radial direction of the mounting hole.

[0137] Specifically, the concave-convex surface of the first sealing block has a plurality of protrusions and recesses arranged one by one in a radial direction of the mounting hole, and the concave-convex surface of the second sealing block has a plurality of protrusions and recesses arranged one by one in a radial direction of the mounting hole. The protrusions of the first sealing block are matched in a one-to-one correspondence with the recesses of the second sealing block, and the protrusions of the second sealing block are matched in a one-to-one correspondence with the recesses of the first sealing block, so as to have a strong sealing effect. It is understandable that in other embodiments, the plurality of protrusions and recesses located on the first sealing block and the second sealing block can also be arranged one by one in a radial direction of the mounting hole.

[0138] The internal circuit 7 is sandwiched between the concavo-convex surface of the first sealing block and the concavo-convex surface of the second sealing block to have a strong sealing performance, and then the internal circuit 7 extends to the lead device 12.

[0139] In some embodiments, a third liquid cooling channel 125 is provided in the wall of the sleeve 121 .

[0140] like Figure 7 As shown, a third liquid cooling channel 125 is provided in the wall of the sleeve 121, and the third liquid cooling channel 125 extends along the circumference of the sleeve 121. Preferably, the third liquid cooling channel 125 is provided at the upper end of the sleeve 121. The wall of the sleeve 121 is cooled by the third liquid cooling channel 125 to prevent the high temperature in the box body 10 from being transmitted to the outside through the wall of the sleeve 121.

[0141] In some embodiments, the lead-in device 12 also includes a threading plate 126, which is arranged at one end of the sleeve 121 connected to the box body 10. The threading plate 126 is provided with a threading hole that passes through the threading plate 126 along the axial direction of the sleeve 121, and the internal line 7 is passed through the threading hole.

[0142] like Figure 7 As shown, a wire-threading plate 126 is provided at the lower end of the sleeve 121, and a plurality of heat-insulating plates 122 are arranged at intervals in the vertical direction and are all located above the wire-threading plate 126. The heat-insulating plate 122 at the lower end is arranged at intervals from the wire-threading plate 126, and the wire-threading plate 126 is provided with a wire-threading hole which passes through the wire-threading plate 126 in the vertical direction, and the internal line 7 is passed through the wire-threading hole.

[0143] In some embodiments, the high temperature electrochemical energy conversion device testing equipment of the embodiments of the present invention further includes a guide rail 13 and a limiter 14 .

[0144] The guide rail 13 is arranged on the inner wall surface of the pressure vessel 1 and extends along the length direction of the pressure vessel 1. The guide rail 13 is connected to the temperature control device 9 so that the temperature control device 9 can move along the length direction of the pressure vessel 1 relative to the pressure vessel 1. The guide rail 13 is provided with a mounting groove. The stopper 14 is arranged on the guide rail 13 and can extend out and enter the mounting groove to stop and release the temperature control device 9.

[0145] like Figure 1 , Figure 8 , Fig. 9 and Fig.10 As shown, the pressure vessel 1 is a circular tank body extending in the left-right direction. A plurality of guide rails 13 are provided on the inner circumference of the pressure vessel 1 . The guide rails 13 extend in the left-right direction. The plurality of guide rails 13 are arranged at intervals along the circumference of the pressure vessel 1 .

[0146] The temperature control device 9 is arranged in the pressure vessel 1 and connected to the plurality of guide rails 13. Preferably, the temperature control device 9 is provided with a plurality of support frames, and the plurality of support frames are connected to the plurality of guide rails 13 one by one. Each support frame can slide in the left-right direction relative to the connected guide rail 13, so that the temperature control device 9 can slide in the left-right direction relative to the plurality of guide rails 13. Preferably, the support frame has a sleeve compensator to compensate for the temperature difference deformation.

[0147] Each guide rail 13 is provided with a mounting groove, and the mounting groove is provided with a limiter 14. The limiter 14 can extend out of and enter the mounting groove. When the limiter 14 extends out of the mounting groove, the limiter 14 indirectly stops the temperature control device 9 through the stop support frame to limit the position of the temperature control device 9. When the limiter 14 enters the mounting groove, the support frame can pass through the guide rail 13 where the limiter 14 is provided to release the temperature control device 9.

[0148] The guide rail 13 and the limiter 14 enable the temperature control device 9 to be moved and limited in the pressure vessel 1, so as to facilitate maintenance and repair of the pressure vessel 1 and the temperature control device 9.

[0149] Furthermore, the temperature control device 9 moves on the guide rail 13 and has a left end position and a right end position. A limiter 14 is provided at both ends of each guide rail 13 to stop the temperature control device 9 at the left end position and the right end position respectively. One of the left end position and the right end position is used for the operation of the temperature control device 9, and the other is used for maintenance and inspection.

[0150] Furthermore, the limiter 14 is a one-way stopper for the temperature control device 9. Specifically, the limiter 14 at the left end is used to stop the temperature control device 9 from moving to the right, and the limiter 14 at the right end is used to stop the temperature control device 9 from moving to the left. The temperature control device 9 can move from left to right and pass through the limiter 14 at the right end, and the temperature control device 9 can move from right to left and pass through the limiter 14 at the left end.

[0151] Further, such as Fig. 9 and Fig.10 As shown, the limiter 14 includes a limit block 141 and an elastic member 142. The bottom of the limit block 141 is connected to the bottom surface of the installation slot through the elastic member 142. The limit block 141 can enter the installation slot under external pressure and can extend out of the installation slot under the drive of the elastic member 142.

[0152] In the left-right direction, the end surface of one end of the limit block 141 extends vertically to stop the support frame, thereby indirectly stopping the temperature control device 9. The other end of the limit block 141 extends obliquely, specifically from top to bottom, and is obliquely arranged in a direction away from one end of the limit block 141. When the support frame abuts the inclined surface of the other end of the limit block 141, the support frame applies downward pressure to the limit block 141 through the inclined surface, so that the limit block 141 enters the installation groove, so that the support frame passes through the guide rail 13 where the limit block 141 is provided to release the temperature control device 9. The direction of the stop against the temperature control device 9 can be adjusted by adjusting the direction of the inclined surface of the limit block 141 in the left-right direction. Specifically, the limit block 141 of the left end stopper 14 is set to have an inclined surface on the right end surface, and the limit block 141 of the right end stopper 14 is set to have an inclined surface on the left end surface.

[0153] The limit block 141 stops against the support frame to stop the temperature control device 9. When the temperature control device 9 needs to pass through, the limit block 141 is manually pressed into the installation groove to allow the temperature control device 9 to pass through.

[0154] In some embodiments, a temperature measuring element 15 is provided at one end of the gas supply pipe 3 connected to the high-temperature electrochemical energy conversion device, and the temperature measuring element 15 is electrically connected to the temperature control device 9 .

[0155] like Figure 1 and Figure 8 As shown, the temperature control device 9 includes two heating furnaces 91 and an insulating shell 92. The two heating furnaces 91 are arranged one by one on the two gas supply pipes 3 connected to the cathode gas inlet and the anode gas inlet respectively, so as to adjust the medium temperature in the corresponding gas supply pipes 3 respectively. Preferably, the heating furnace 91 has a quartz tube, which is connected to the gas supply pipe 3 to heat the medium provided by the gas supply pipe 3 through the quartz tube, and the heating is uniform and efficient. The two heating furnaces 91 are arranged in the insulating shell 92, and the outer peripheral surface of the insulating shell 92 is provided with a plurality of support frames. The insulating shell 92 is preferably made of aluminum silicate fiber.

[0156] The left end of the gas supply pipe 3 is connected to the gas supply device 8, and the right end of the gas supply pipe 3 is connected to the corresponding cathode gas inlet or anode gas inlet. The right end of the gas supply pipe 3 is provided with a temperature measuring element 15, and the temperature measuring element 15 is electrically connected to the heating furnace 91 on the same gas supply pipe 3, so as to adjust the heating temperature of the heating furnace 91 by the medium temperature obtained by the temperature measuring element 15, thereby adjusting the medium temperature of the gas supply pipe 3 to ensure that the requirements of the high-temperature electrochemical energy conversion device are met. The temperature measuring element 15 is preferably a thermocouple.

[0157] It can be understood that, in other embodiments, the temperature control device 9 may include a heating furnace 91 , and the heating furnace 91 is disposed on two gas supply pipes 3 at the same time.

[0158] In some embodiments, Figure 1 As shown, the air supply pipe 3 is provided with a pressure valve 16 to control the air supply pressure of the air supply pipe 3 through the pressure valve 16 .

[0159] In some embodiments, the gas supply device 8 includes an anode gas supply assembly and a cathode gas supply assembly.

[0160] The anode gas supply assembly includes an anode mixer 81, and a hydrogen supply pipe, a methane supply pipe, a carbon monoxide supply pipe, a carbon dioxide supply pipe and an anode nitrogen supply pipe connected to the anode mixer 81. The anode mixer 81 is connected to the anode gas inlet of the high-temperature electrochemical energy conversion device through the corresponding gas supply pipe 3. The cathode gas supply assembly includes a cathode mixer 82, and an oxygen supply pipe and a cathode nitrogen supply pipe connected to the cathode mixer 82. The cathode mixer 82 is connected to the cathode gas inlet of the high-temperature electrochemical energy conversion device through the corresponding gas supply pipe 3.

[0161] like Figure 1As shown, an anode mixer 81 is provided at the left end of the gas supply pipe 3 connected to the anode gas inlet, and the anode mixer 81 is connected to the hydrogen supply pipe, the methane supply pipe, the carbon monoxide supply pipe, the carbon dioxide supply pipe and the anode nitrogen supply pipe. The hydrogen supply pipe, the methane supply pipe, the carbon monoxide supply pipe, the carbon dioxide supply pipe and the anode nitrogen supply pipe are all provided with corresponding pressure valves and switches to control the pressure and on-off of the corresponding gases. The hydrogen supply pipe, the methane supply pipe, the carbon monoxide supply pipe, the carbon dioxide supply pipe and the anode nitrogen supply pipe can be all opened or partially opened, wherein at least part of the supplied gas enters the anode mixer 81 for mixing, and the mixed gas is supplied to the anode gas inlet through the corresponding gas supply pipe 3.

[0162] A cathode mixer 82 is provided at the left end connected to the cathode air inlet, and the cathode mixer 82 is connected to the oxygen supply pipe and the cathode nitrogen supply pipe. Both the oxygen supply pipe and the cathode nitrogen supply pipe are provided with corresponding pressure valves and switches for controlling the pressure and on-off of the corresponding gases. Both the oxygen supply pipe and the cathode nitrogen supply pipe can be opened, or only one of them can be opened, wherein at least part of the supplied gas enters the cathode mixer 82 for mixing, and the mixed gas is supplied to the cathode air inlet through the corresponding air supply pipe 3.

[0163] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0164] In addition, the terms "first" and "second" 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, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0165] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0166] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0167] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0168] Although the above embodiments have been shown and described, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present invention.

Claims

1. A high temperature electrochemical energy conversion device testing equipment, characterized in that: include: A pressure vessel (1), wherein the inner cavity of the pressure vessel (1) is used to arrange a high-temperature electrochemical energy conversion device and is capable of forming a pressure environment; A pipeline penetration device (2), the pipeline penetration device (2) being arranged on the pressure vessel (1), the pipeline penetration device (2) being used for penetrating a gas supply pipe (3) and / or an exhaust pipe (4) connected to the high-temperature electrochemical energy conversion device; A wiring device (5), the wiring device (5) being arranged on the pressure vessel (1), the wiring device (5) being used to connect an external circuit (6) and an internal circuit (7), the internal circuit (7) being connected to the high-temperature electrochemical energy conversion device; An air supply device (8), wherein the air supply device (8) is respectively connected to a cathode air inlet and an anode air inlet of the high-temperature electrochemical energy conversion device through the air supply pipe (3); A temperature control device (9), wherein the temperature control device (9) is arranged on the air supply pipe (3) to adjust the temperature of the medium in the air supply pipe (3).

2. The high temperature electrochemical energy conversion device testing equipment according to claim 1, characterized in that: The pipeline penetration device (2) comprises: a shell (21), the shell (21) being provided with an inner cavity, the shell (21) being arranged on the pressure vessel (1), and the inner cavity of the shell (21) being communicated with the inner cavity of the pressure vessel (1), the corresponding air supply pipe (3) or the exhaust pipe (4) entering the inner cavity of the shell (21) from the inner cavity of the pressure vessel (1) and being passed through the shell (21); A refractory sleeve (22), the refractory sleeve (22) being arranged in the inner cavity of the shell (21) and sleeved on the corresponding air supply pipe (3) or the exhaust pipe (4).

3. The high temperature electrochemical energy conversion device testing equipment according to claim 2, characterized in that: The housing (21) comprises: a first connecting pipe (211), one end of the first connecting pipe (211) being arranged on the pressure container (1), and the lumen of the first connecting pipe (211) forming the inner cavity of the shell (21); A first flange (212), wherein the first flange (212) is arranged at the other end of the first connecting pipe (211) and is passed through the corresponding air supply pipe (3) or the exhaust pipe (4), and the first flange (212) has a compensation portion (213), and the compensation portion (213) can be expanded and contracted along the lateral direction of the first flange (212).

4. The high temperature electrochemical energy conversion device testing equipment according to claim 3, characterized in that: The compensation portion (213) is in an arc shape protruding along the longitudinal direction of the first flange (212), and the compensation portion (213) is deformable.

5. The high temperature electrochemical energy conversion device testing equipment according to claim 4, characterized in that: The compensation portion (213) is provided with a liquid cooling interlayer (214).

6. The high temperature electrochemical energy conversion device testing equipment according to claim 1, characterized in that: The wiring device (5) comprises: A mounting portion (51), wherein the mounting portion (51) is arranged on the pressure container (1); a conductive bolt (52), the conductive bolt (52) being passed through the mounting portion (51) and being sealedly connected to the mounting portion (51), one end of the conductive bolt (52) being connected to the internal circuit (7), and the other end of the conductive bolt (52) being connected to the external circuit (6); A sealing cover (53), the sealing cover (53) being arranged on the mounting portion (51) and covering the other end of the conductive bolt (52); A sealing member (54), wherein the sealing member (54) is connected between the sealing cover (53) and the mounting portion (51), and the external circuit (6) is passed through the sealing member (54).

7. The high temperature electrochemical energy conversion device testing equipment according to claim 6, characterized in that: The wiring device (5) further comprises an insulating cover (55), the insulating cover (55) being arranged on the mounting portion (51) and covering the other end of the conductive bolt (52), the insulating cover (55) having a through hole for the external line (6) to pass through, and the sealing cover (53) covering the insulating cover (55).

8. The high temperature electrochemical energy conversion device testing equipment according to claim 7, characterized in that: The sealing member (54) comprises: A first sealing ring (541), wherein the first sealing ring (541) is arranged on the mounting portion (51), and an end surface of the first sealing ring (541) facing away from the mounting portion (51) is a concave-convex surface; A second sealing ring (542), the second sealing ring (542) is arranged on the sealing cover (53), the end surface of the second sealing ring (542) facing away from the sealing cover (53) is a concave-convex surface, the concave-convex surface of the second sealing ring (542) and the concave-convex surface of the first sealing ring (541) are matched and abutted against each other, and the external circuit (6) is clamped therebetween.

9. The high temperature electrochemical energy conversion device testing equipment according to claim 1, characterized in that: Also includes: A box body (10), the box body (10) is arranged in the pressure container (1), the inner cavity of the box body (10) is used to arrange the high-temperature electrochemical energy conversion device, the gas supply pipe (3), the exhaust pipe (4) and the internal line (7) are all passed through the box body (10), and the box body (10) is provided with a pressure channel; A pressure-applying device (11), wherein the pressure-applying device (11) is disposed in the pressure container (1), and one end of the pressure-applying device (11) is disposed in the pressure-applying channel, so as to apply pressure to the high-temperature electrochemical energy conversion device.

10. The high temperature electrochemical energy conversion device testing equipment according to claim 9, characterized in that: The pressure applying device (11) comprises a pneumatic telescopic cylinder, and the pneumatic telescopic cylinder comprises: A piston rod, one end of which is disposed in the pressure channel, and a first liquid cooling channel is disposed in the piston rod; A cylinder barrel is sleeved on the outer periphery of the piston rod, and a second liquid cooling channel is provided at one end of the cylinder barrel which is away from the box body (10).

11. The high temperature electrochemical energy conversion device testing equipment according to claim 9, characterized in that: The box body (10) is provided with a guide tube (101), the inner wall of the guide tube (101) is provided with a slideway (102), the outer peripheral surface of one end of the pressure-applying device (11) is provided with a slider (111), the slider (111) is connected to the slideway (102), and can move along the axial direction of the guide tube (101) relative to the slideway (102).

12. The high temperature electrochemical energy conversion device testing equipment according to claim 9, characterized in that: It also includes a lead-in device (12), which is arranged on the box body (10) and is used for the internal line (7) to pass through. The lead-in device (12) includes: A sleeve (121), wherein the sleeve (121) is arranged on the box body (10); A heat insulation plate (122), wherein the heat insulation plate (122) is arranged in the sleeve (121), and the outer circumference of the heat insulation plate (122) is connected to the inner circumference of the sleeve (121), there are multiple heat insulation plates (122), and the multiple heat insulation plates (122) are arranged at intervals along the axial direction of the sleeve (121), and the internal circuit (7) is sealed and penetrated in the multiple heat insulation plates (122) in sequence.

13. The high temperature electrochemical energy conversion device testing equipment according to claim 12, characterized in that: One end of the sleeve (121) is connected to the box body (10); The lead-in device (12) further comprises: an end plate (123), the end plate (123) being arranged at the other end of the sleeve (121), the end plate (123) being provided with a mounting hole penetrating the end plate (123) along the axial direction of the sleeve (121); A sealing component (124), the sealing component (124) is embedded in the installation hole, the sealing component (124) comprises a first sealing block and a second sealing block, the first sealing block and the second sealing block both have concave and convex surfaces, the concave and convex surface of the first sealing block and the concave and convex surface of the second sealing block are matched and abutted against each other, and the internal circuit (7) is clamped therein.

14. The high temperature electrochemical energy conversion device testing equipment according to claim 12, characterized in that: A third liquid cooling channel (125) is provided in the wall of the sleeve (121); and / or The lead-in device (12) further comprises a threading plate (126), wherein the threading plate (126) is arranged at one end of the sleeve (121) connected to the box body (10), and the threading plate (126) is provided with a threading hole which passes through the threading plate (126) along the axial direction of the sleeve (121), and the internal circuit (7) is passed through the threading hole.

15. The high temperature electrochemical energy conversion device testing equipment according to claim 1, characterized in that: Also includes: a guide rail (13), the guide rail (13) being arranged on the inner wall surface of the pressure vessel (1) and extending along the length direction of the pressure vessel (1), the guide rail (13) being connected to the temperature control device (9) so that the temperature control device (9) can move relative to the pressure vessel (1) along the length direction of the pressure vessel (1), and the guide rail (13) being provided with a mounting groove; A stopper (14) is arranged on the guide rail (13) and can extend out of and enter the installation groove to stop and release the temperature control device (9).

16. The high temperature electrochemical energy conversion device testing equipment according to claim 1, characterized in that: A temperature measuring element (15) is provided at one end of the gas supply pipe (3) connected to the high-temperature electrochemical energy conversion device, and the temperature measuring element (15) is electrically connected to the temperature control device (9); The air supply pipe (3) is provided with a pressure valve (16); The air supply device (8) comprises: an anode gas supply assembly, the anode gas supply assembly comprising an anode mixer (81), and a hydrogen supply pipe, a methane supply pipe, a carbon monoxide supply pipe, a carbon dioxide supply pipe and an anode nitrogen supply pipe connected to the anode mixer (81), the anode mixer (81) being connected to an anode gas inlet of the high-temperature electrochemical energy conversion device via a corresponding gas supply pipe (3); A cathode gas supply assembly, the cathode gas supply assembly comprising a cathode mixer (82), and an oxygen supply pipe and a cathode nitrogen supply pipe connected to the cathode mixer (82); the cathode mixer (82) is connected to the cathode gas inlet of the high-temperature electrochemical energy conversion device through a corresponding gas supply pipe (3).

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