An impregnation system for a solid oxide fuel cell

Abstract

This invention discloses an impregnation system for solid oxide fuel cells, relating to the field of battery impregnation technology. The impregnation system for solid oxide fuel cells includes an impregnation liquid container, an impregnation nozzle, a base, and a connecting assembly. The impregnation liquid container has an impregnation chamber for containing the impregnation liquid and an opening for injecting the impregnation liquid into the impregnation chamber. The bottom surface of the impregnation liquid container has a mounting through hole. The top-opening impregnation nozzle is inserted into the mounting through hole, and the impregnation liquid can flow into the impregnation nozzle. The body of the impregnation nozzle has a first through hole. The base supports the battery to be impregnated. The connecting assembly connects the impregnation liquid container and the base to clamp or release the battery to be impregnated. This impregnation system is simple to operate, and the impregnation effect of each channel of the battery is guaranteed. Multiple impregnation nozzles are arranged on the base corresponding to the distribution of the battery channels, allowing for the simultaneous impregnation of multiple channels of the solid oxide fuel cell, greatly improving the efficiency of the impregnation process and laying the foundation for industrialization.

Description

Technical Field

[0001] This invention relates to the field of battery impregnation technology, and more specifically, to an impregnation system for a solid oxide fuel cell. Background Technology

[0002] A solid oxide fuel cell (SOCF) is a device that directly converts the chemical energy of fuel into electrical energy, achieving efficient and clean utilization of fuel. A SOCF mainly consists of a porous anode, a dense electrolyte, and a porous cathode. The porous anode is the site of the fuel gas reaction, while the porous cathode, which is vented to air, is the primary site for catalytic reactions and electron transport. The dense electrolyte blocks electron transport, prevents short circuits, and separates the fuel gas from the air. Under medium-to-high temperature conditions, the fuel undergoes an oxidation reaction at the anode, and the generated electrons are transported to the cathode via an external circuit. Oxygen accepts electrons at the cathode and undergoes a reduction reaction. The external circuit transports electrons, while the internal circuit, using oxygen ions as conductors, transports ions. The internal and external circuits together form a closed loop, achieving power generation.

[0003] In actual manufacturing or use, the anode of a solid oxide fuel cell is impregnated to improve its performance. Common impregnation methods include manual injection and hydrothermal impregnation. For manual injection, one end of the cell's inner pore is first sealed with paraffin wax. The impregnating solution is then injected into the pore using a syringe, allowing it to penetrate the anode. After impregnation, the paraffin wax is cleaned off, completing the manual injection process. For hydrothermal impregnation, the impregnating solution is injected into a container, the cell is placed inside, and the container is sealed. The impregnating solution is then heated to complete the impregnation. During hydrothermal impregnation, the operator must closely monitor for leaks. Both methods are cumbersome, time-consuming, and labor-intensive.

[0004] In summary, how to change the cumbersome impregnation process of solid oxide fuel cells is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, the purpose of this invention is to provide an impregnation system for solid oxide fuel cells. This impregnation system has a simple structure, low cost, and is easy to operate, effectively reducing the labor intensity of operators. It has excellent impregnation effect, and compared with related technologies, the operation uncertainty of this impregnation system is low. The impregnation effect of each channel of the battery is similar, effectively ensuring the stability of the battery. It is also conducive to the research and analysis of the factors affecting the impregnation effect. Furthermore, multiple impregnation nozzles are set on the base corresponding to the distribution of battery channels, which can complete the impregnation of multiple channels of solid oxide fuel cells at one time, greatly improving the efficiency of impregnation processing and laying the foundation for industrial development.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] An impregnation system for a solid oxide fuel cell includes:

[0008] An impregnation liquid container having an impregnation cavity for containing the impregnation liquid and an opening for injecting the impregnation liquid into the impregnation cavity, wherein the bottom surface of the impregnation liquid container is provided with a mounting through hole;

[0009] An impregnation nozzle with an open top is inserted into the mounting through hole, and the impregnation liquid in the impregnation chamber can flow into the impregnation nozzle. The body of the impregnation nozzle is provided with a first through hole.

[0010] A base, used to support the battery to be immersed;

[0011] A connecting assembly for connecting the impregnation solution container and the base to clamp or release the battery to be impregnated.

[0012] Preferably, the opening of the impregnation liquid container is connected to a pump, and the pump is connected to an impregnation liquid reservoir whose inner cavity stores the impregnation liquid.

[0013] Preferably, the impregnation nozzle has a plurality of first through holes in its body, and the impregnation liquid container has a second through hole, the second through hole being connected to a blower.

[0014] Preferably, a heating component is provided between the fan and the impregnation liquid container for heating the gas.

[0015] Preferably, the base and the side of the impregnation liquid container are provided with a heating plate for heating the battery to be impregnated.

[0016] Preferably, the fan is a blower / suction fan.

[0017] Preferably, the connection assembly includes a connector and at least two fasteners;

[0018] The impregnation liquid container and the base are slidably mounted on the connector, and the fixing member cooperates with the connector to fix the position of the impregnation liquid container and the base.

[0019] Preferably, the connecting member is a screw and the fixing member is a nut.

[0020] Preferably, the impregnation liquid container is a trough-shaped structure with an open top, and the top of the impregnation liquid container is provided with a top cover for sealing the impregnation chamber, and the opening and the second through hole are both provided on the top cover.

[0021] Preferably, the angle between the axis of the first through hole and the extension direction of the impregnation nozzle away from the impregnation liquid container is an acute angle.

[0022] Preferably, the bottom side of the inner wall of the impregnation liquid container is provided with a plurality of spiral-shaped grooves, and each spiral-shaped groove is connected to the corresponding mounting through hole.

[0023] Preferably, the top end of the impregnation nozzle is a funnel-shaped structure, the mounting through hole is a conical countersunk hole, and the funnel-shaped structure of the impregnation nozzle is engaged with the mounting through hole.

[0024] Preferably, the junctions between the inner sidewalls of the impregnation liquid container are provided with rounded corners.

[0025] Preferably, the top surface of the base is provided with a receiving groove, which can hold the battery to be immersed, and the bottom of the receiving groove is provided with a sealing gasket.

[0026] Preferably, the impregnation liquid container and the base are both made of aluminum alloy or stainless steel.

[0027] Preferably, the impregnation nozzle is a glass tube or a PVC hose.

[0028] The impregnation system for a solid oxide fuel cell provided by this invention comprises an impregnation liquid container that is an open shell structure with an impregnation chamber inside. An installation through-hole is provided on the bottom side of the shell structure. The impregnation nozzle is a hollow tubular structure that is inserted into the installation through-hole at the bottom of the impregnation liquid container, allowing the impregnation liquid in the impregnation chamber to flow into the nozzle. A first through-hole for spraying the impregnation liquid is provided on the top of the nozzle. A base supports the battery, and a connecting assembly connects the base and the impregnation liquid container. When the battery to be impregnated is placed on the base, the connecting assembly tightly connects the impregnation liquid container to the base, clamping the battery and pressing the bottom end of the battery's channel against the top surface of the base. After impregnation, adjusting the connecting assembly releases the impregnation liquid container from the base, allowing the impregnated battery to be removed.

[0029] In use, the battery is placed on the base, the impregnation liquid container is moved, and the impregnation nozzle is inserted into the channel of the battery to be impregnated. Impregnation liquid is injected into the impregnation chamber from the opening of the impregnation liquid container. The impregnation liquid flows into the impregnation nozzle and is sprayed into the channel of the battery to be impregnated through the first through hole in the nozzle body, thereby completing the impregnation treatment of the solid oxide fuel cell to be impregnated. This solid oxide fuel cell impregnation system is simple to operate and can impregnate multiple channels of the solid oxide fuel cell at one time, which greatly improves the efficiency and effect of the impregnation treatment. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the structure of a solid oxide fuel cell in the prior art;

[0032] Figure 2 A front view of a specific embodiment provided by the present invention;

[0033] Figure 3 This is a schematic diagram of the structure of a specific embodiment provided by the present invention;

[0034] Figure 4 This is a schematic diagram of a system according to a specific embodiment of the present invention;

[0035] Figure 5 This is a schematic diagram of the structure of the impregnation liquid container provided in a specific embodiment of the present invention;

[0036] Figure 6 A top view of the impregnation liquid container provided in a specific embodiment of the present invention;

[0037] Figure 7 A front view of the impregnation nozzle provided in a specific embodiment of the present invention;

[0038] Figure 8 This is a partially enlarged schematic diagram of the impregnation nozzle according to a specific embodiment of the present invention;

[0039] Figure 9 This is a schematic diagram of the base provided in a specific embodiment of the present invention.

[0040] Figures 1-9 In the accompanying drawings, the reference numerals include:

[0041] 1 is the impregnation liquid container, 1-1 is the impregnation chamber, 1-2 is the opening, 1-3 is the mounting through hole, 1-4 is the second through hole, 1-5 is the swirl-type flower trough, 2 is the impregnation spray pipe, 2-1 is the first through hole, 3 is the base, 3-1 is the receiving groove, 4 is the connecting component, 4-1 is the connector, 4-2 is the fixing component, 5 is the pump, 6 is the impregnation liquid storage container, 7 is the fan, 8 is the heating component, 9 is the top cover, and 10 is the battery. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] The core of this invention is to provide an impregnation system for solid oxide fuel cells. This impregnation system has a simple structure, low cost, and is easy to operate, effectively reducing the labor intensity of operators. It has excellent impregnation effect, and compared with related technologies, the operation uncertainty of this impregnation system is low. The impregnation effect of each channel of the battery is similar, effectively ensuring the stability of the battery. It is also conducive to the research and analysis of the factors affecting the impregnation effect. Furthermore, multiple impregnation nozzles are set on the base corresponding to the distribution of battery channels, which can complete the impregnation of multiple channels of solid oxide fuel cells at one time, greatly improving the efficiency of impregnation processing and laying the foundation for industrial development.

[0044] A solid oxide fuel cell, such as Figure 1 As shown, the main structure of this example battery 10 is the anode, which is the site of the oxidation reaction in the battery 10. An electrolyte layer is provided on the side of the anode material, and a cathode material is provided on the side of the dielectric layer. Several parallel channels are provided on the anode to allow fuel gas to pass through, thus facilitating the oxidation reaction. This invention achieves efficient and high-quality impregnation through these channels.

[0045] Please refer to Figures 2 to 9 The present invention provides an impregnation system for a solid oxide fuel cell, comprising an impregnation liquid container 1, an impregnation nozzle 2, a base 3, and a connecting assembly 4.

[0046] The impregnation liquid container 1 has an impregnation chamber 1-1 for containing the impregnation liquid and an opening 1-2 for injecting the impregnation liquid into the impregnation chamber 1-1. The bottom surface of the impregnation liquid container 1 is provided with a mounting through hole 1-3. The impregnation nozzle 2 of the top opening 1-2 is inserted into the mounting through hole 1-3, and the impregnation liquid in the impregnation chamber 1-1 can flow into the impregnation nozzle 2. The body of the impregnation nozzle 2 is provided with a first through hole 2-1. The base 3 is used to support the battery 10 to be impregnated. The connecting assembly 4 is used to connect the impregnation liquid container 1 and the base 3 to clamp or release the battery 10 to be impregnated.

[0047] Specifically, the impregnation liquid container 1 is a shell structure with an opening 1-2. It should be noted that the specific location and shape of the opening 1-2 are not limited. It is possible to provide a round hole or a square hole on the top or side wall of the impregnation liquid container 1. The inner cavity of the shell structure is the impregnation cavity 1-1. An installation through hole 1-3 is provided on the bottom side of the shell structure. It should be noted that the specific shape of the impregnation cavity 1-1 is not limited. It can be a square cavity or a cylindrical cavity, as long as it can accommodate the impregnation liquid.

[0048] The impregnation nozzle 2 is a hollow tubular structure, and it is inserted into the mounting through hole 1-3 at the bottom of the impregnation liquid container 1. The impregnation liquid in the impregnation liquid chamber can flow into the impregnation nozzle 2. A first through hole 2-1 for spraying the impregnation liquid is provided on the upper part of the nozzle. It should be noted that the shape and number of the first through holes 2-1 are not limited, as long as the impregnation liquid can be sprayed out. The mounting through hole 1-3 is a countersunk hole, and the top of the impregnation nozzle 2 has a cross-section smaller than that of the nozzle body. With a wide flange structure, during assembly, the immersion nozzle 2 enters the immersion chamber 1-1 from the opening 1-2 of the immersion liquid container 1 and continues to be inserted into the mounting through hole 1-3. Finally, the bottom surface of the top flange structure of the immersion nozzle 2 cooperates with the boss of the countersunk hole, thereby supporting the immersion nozzle 2. This structure is simple and easy to assemble and use. It should be noted that there is no limit to the number of mounting through holes 1-3, that is, there is no limit to the number of immersion nozzles 2, as long as the immersion of the battery 10 can be achieved.

[0049] The base 3 is used to support the battery 10. Preferably, the top of the plate-shaped base 3 is provided with a groove with the same shape as the end of the battery 10, so that the battery 10 to be immersed can be accurately placed in a preset position, and the base 3 can fit against the end face of the battery 10 to be immersed, which is beneficial to stably support the battery 10.

[0050] The connecting component 4 connects the base 3 and the impregnation liquid container 1, so that when the battery to be impregnated 10 is placed on the base 3, the connecting component 4 can tightly connect the impregnation liquid container 1 and the base 3, thereby clamping the battery to be impregnated 10 and pressing the bottom end of the hole of the battery to be impregnated 10 against the top surface of the base 3. After impregnation is completed, the connecting component 4 is adjusted to loosen the impregnation liquid container 1 and the base 3, so that the impregnated battery 10 can be removed.

[0051] It is feasible that both the impregnation liquid container 1 and the base 3 are provided with threaded through holes. The screw can be screwed into the threaded hole of the impregnation liquid container 1 and the threaded hole of the base 3, so that the impregnation liquid container 1 and the base 3 can be detachably connected. When it is necessary to clamp the battery 10 to be impregnated, place the battery 10 to be impregnated on the preset position of the base 3, insert the impregnation spray pipe 2 set on the impregnation liquid container 1 into the channel of the battery 10 to be impregnated until the bottom surface of the impregnation liquid container 1 contacts the top surface of the battery 10 to be impregnated, screw the screw into the threaded through holes of the impregnation liquid container 1 and the base 3, so that the battery 10 to be impregnated can be clamped. After impregnation is completed, the screw can be unscrewed to remove the impregnated battery 10.

[0052] Optionally, a pull ring is provided on the top or side of the base 3, and a pull ring is provided on the bottom or side of the impregnation container 1. The two ends of the compression spring are connected to the pull rings of the base 3 and the impregnation container 1, respectively. The impregnation container 1 and the base 3 are connected by the compression spring. When the spring is in its natural state, the space between the impregnation container 1 and the base 3 is insufficient to place the battery 10 to be impregnated. When it is necessary to clamp the battery 10 to be impregnated in preparation, the base 3 or the impregnation container 1 is moved, and the spring is stretched. At this time, the distance between the impregnation container 1 and the base 3 increases. The battery 10 to be impregnated is placed in the preset position of the base 3. The base 3 or the impregnation container 1 is moved again to reduce the distance between the impregnation container 1 and the base 3 until both the impregnation container 1 and the base 3 are in contact with the battery 10 to be impregnated. The base 3 and the impregnation container 1 are released, and the battery 10 to be impregnated is clamped under the action of the spring. The process of removing the battery 10 after impregnation is completed is the reverse of the above process.

[0053] In use, the battery 10 is placed on the base 3, and the impregnation liquid container 1 is moved to insert the impregnation nozzle 2 into the channel of the battery 10 to be impregnated. Impregnation liquid is injected into the impregnation chamber 1-1 from the opening 1-2 of the impregnation liquid container 1. The impregnation liquid flows into the impregnation nozzle 2 and is sprayed into the channel of the battery 10 to be impregnated through the first through hole 2-1 of the pipe body, thereby completing the impregnation treatment of the battery 10 to be impregnated. This impregnation system for solid oxide fuel cells has a simple structure, low cost, and simple operation, effectively reducing the labor intensity of the operator. Moreover, the base 3 is equipped with multiple impregnation nozzles 2 corresponding to the distribution of the channels of the battery 10, which can complete the impregnation of multiple channels of the solid oxide fuel cell at one time, greatly improving the efficiency of the impregnation treatment and laying the foundation for industrial development. Furthermore, compared with related technologies, the operation uncertainty of this impregnation system is low, the impregnation effect of each channel of the battery 10 is similar, effectively ensuring the stability of the battery 10, and facilitating the research and analysis of the factors affecting the impregnation effect of the battery 10.

[0054] Based on the above embodiment, the opening 1-2 of the impregnation liquid container 1 is connected to the pump 5, and the pump 5 is connected to the impregnation liquid reservoir 6 whose inner cavity stores the impregnation liquid.

[0055] Specifically, such as Figure 4 As shown, the opening 1-2 of the impregnation liquid container 1 is connected to the pump 5 via a pipeline, PVC steel wire hose, rubber hose, etc. Preferably, the opening 1-2 of the impregnation liquid container 1 is a cylindrical through hole, and the side of the opening 1-2 is provided with an internal thread. The circumferential surface of the pipeline end is provided with an external thread that can match the aforementioned internal thread, thereby firmly connecting the pipeline to the impregnation liquid container 1. The pump 5 is connected to the impregnation liquid storage tank 6, so that the impregnation liquid can be continuously transported into the impregnation chamber 1-1 through the pipeline under the action of the pump 5. It should be noted that the specific shape of the impregnation liquid storage tank 6 is not limited. It can be a barrel-shaped structure, a trough-shaped structure, etc., as long as it can store the impregnation liquid.

[0056] Furthermore, after the impregnation is completed, the impregnation liquid storage tank 6 can be filled with cleaning liquid, and the cleaning liquid can be pumped into the impregnation chamber 1-1 by the pump 5. The bottom of the impregnation liquid spray pipe is provided with a through hole, and the liquid flows out through the first through hole 2-1 and the through hole at the bottom of the impregnation spray pipe 2 to complete the cleaning of the impregnation system. After the cleaning is completed, the impregnation system can be dried to ensure that the impregnation system is clean and dry and to extend its service life.

[0057] Furthermore, a monitoring component for monitoring the flow rate of the impregnating liquid in the monitoring pipeline can be installed between the pump 5 and the impregnating liquid. This can be achieved by connecting liquid flow sensors, flow meters, etc. in series in the pipeline and installing a monitoring component between the impregnating liquid container 1 and the pump 5. This allows the amount of impregnating liquid flowing into the impregnating chamber 1-1 to be known, which helps guide the opening and closing of the pump 5 and reduces the waste of impregnating liquid.

[0058] Based on the above embodiments, the body of the impregnation nozzle 2 is provided with a plurality of first through holes 2-1, and the impregnation liquid container 1 has a second through hole 1-4, the second through hole 1-4 being connected to the blower 7.

[0059] Specifically, each of the first through holes 2-1 is a hole with a small cross-sectional width, such as a round hole, a square hole, or any other arbitrary shape. Optionally, each of the first through holes 2-1 can be arranged in a grid pattern on the surface of the impregnation nozzle 2, or as shown in the image. Figure 7 As shown, the first through-hole 2-1 is evenly distributed along the spiral line on the wall of the impregnation nozzle 2. Of course, each through-hole 2-1 can also be set in any other way, such as staggered arrangement of two rows of through-holes 2-1, etc. Figure 4As shown, a second through hole 1-4 is opened on the side wall or top of the impregnation liquid container 1. The second through hole 1-4 is connected to the fan 7 through a pipe. In use, the impregnation spray pipe 2 is inserted into the channel of the battery 10 to be impregnated, and the battery 10 to be impregnated is clamped between the base 3 and the impregnation liquid container 1. Impregnation liquid is injected into the impregnation chamber 1-1, and the fan 7 is started. The compressed gas pumped by the fan 7 enters the impregnation spray pipe 2 through the impregnation chamber 1-1. Finally, the compressed gas flows into the channel of the battery 10 through the first through hole 2-1. Under the action of the compressed gas, the impregnation liquid can flow into the channel of the battery 10 to be impregnated more quickly. The impregnation liquid exists in the channel of the battery 10 to be impregnated in a mist state through the small first through hole 2-1, and can penetrate into the pores of the side wall of the channel more quickly. The quality of the battery 10 after impregnation is excellent, and the impregnation process is faster.

[0060] To improve the sealing performance of the impregnation system, sealing elements, gaskets, or other types of sealing elements can be installed at the bottom of the impregnation liquid container 1, the top surface of the base 3 or the position where the battery 10 is placed on the top surface of the base 3, between the mounting through holes 1-3 and the impregnation spray pipe 2, or between the top cover 9 and the impregnation liquid container 1. When the battery 10 is clamped between the impregnation liquid container 1 and the base 3, the channel of the battery 10 is in a sealed state, which improves the performance of ensuring the pressure inside the channel of the battery 10, thereby ensuring the pressurization effect of the blower 7.

[0061] Furthermore, before immersing the battery 10, the blower 7 can be used to blow out the channels of the battery 10, effectively removing any moisture, dust, or other impurities that may be present in the channels. After blowing out the impregnation, the battery 10 to be immersed is clamped between the immersion liquid container 1 and the base 3, and the immersion liquid is introduced to complete the immersion of the battery 10. This method can improve the immersion effect of the battery 10 and improve its performance.

[0062] Furthermore, a three-way confluence valve is installed at the second through-hole 1-4. The first inlet of the three-way valve is connected to the blower 7, the second inlet is connected to the atmosphere, and the outlet is connected to the impregnation chamber 1-1. When impregnating the battery 10, the first inlet and outlet of the three-way valve are connected. When unloading is required, the three-way valve is adjusted so that the second inlet and outlet are connected, thereby achieving unloading and discharging the exhaust gas from the channels of the battery 10. Moreover, a pressure regulating device, such as a pressure reducing valve, a pressure regulating valve, or a pressure gauge, is installed between the blower 7 and the impregnation liquid container 1 to promptly regulate the pressure within the channels of the battery 10.

[0063] Based on the above embodiment, a heating component 8 is provided between the fan 7 and the impregnation liquid container 1 for heating the gas.

[0064] Specifically, the heating component 8 can heat the gas and output the gas. It can be an air electric heater, a duct electric heater, or any other type of heating component 8. When in use, the fan 7 is started, and the compressed gas pumped by the fan 7 is heated by the heating component 8 and then enters the impregnation chamber 1-1. Finally, the heated compressed gas flows into the channel of the battery 10 to be impregnated, which helps the water and organic solvent in the impregnation liquid to evaporate quickly, leaving the required elements in the pores of the anode channel, effectively improving the impregnation effect of the battery 10.

[0065] Preferably, when the heating element 8 using the resistance heating principle is used in a hair dryer, the heating element can be made of tungsten wire alloy, PTC ceramic, etc. The circuit of the hair dryer is connected in series with a stepless temperature control switch, so as to accurately control the temperature of the hot air output by the hair dryer, which is easy to operate and effectively avoids damage to the performance of the battery 10.

[0066] Based on the above embodiment, a heating plate is provided on the side of the base 3 and the impregnation liquid container 1 for heating the battery 10 to be impregnated. Specifically, the heating plate is located on the side of the base 3 and the impregnation liquid container 1. It should be noted that the type, number, and distribution of the heating plate are not limited, as long as they can achieve the heating of the battery 10 to be impregnated. During the impregnation process, heating the battery 10 by the heating plate further helps the impregnation liquid penetrate and accelerates the evaporation of water and organic solvents in the impregnation liquid, thereby improving the impregnation effect of the impregnation liquid.

[0067] Based on the above embodiments, the blower 7 is a dual-purpose blower / suction blower 7. Specifically, a blower 7 that can both output compressed gas and extract gas is used; optionally, a vortex blower 7 or a Roots blower 7, etc. In use, after the battery 10 is clamped between the impregnation liquid container 1 and the base 3, the blower 7 is started to extract the gas in the channel of the battery 10 to be impregnated to a preset pressure, forming a negative pressure environment in the channel of the battery 10 to be impregnated. After the pressure in the channel of the battery 10 to be impregnated reaches the preset value, the blower 7 is turned off, and the pump 5 is started to pump the impregnation liquid into the impregnation chamber 1-1 of the impregnation liquid container 1. Under the action of the negative pressure environment, it is beneficial for the impregnation liquid to flow into the channel of the battery 10 to be impregnated, and it is also beneficial for the impregnation liquid to penetrate into the pores of the channel sidewall, effectively ensuring the impregnation effect.

[0068] Furthermore, to maximize the effect of the negative pressure environment in helping the impregnation liquid flow, the impregnation liquid can be pumped into the impregnation chamber 1-1 in small amounts multiple times. Specifically, after a small amount of impregnation liquid is introduced, the blower 7 is turned on again to restore the pressure in the channel of the battery to be impregnated 10 to the preset value, and then a small amount of impregnation liquid is introduced again.

[0069] Based on the above embodiments, the connecting component 4 includes a connector 4-1 and at least two fixing members 4-2; the impregnation liquid container 1 and the base 3 are slidably disposed on the connector 4-1, and the fixing members 4-2 cooperate with the connector 4-1 to fix the position of the impregnation liquid container 1 and the base 3.

[0070] Specifically, both the impregnation liquid container 1 and the base 3 are provided with sliding parts that cooperate with the connector 4-1, which can achieve, for example... Figure 2 and Figure 3 As shown, lugs are provided on the side of the impregnation container 1 and the side of the base 3. Each lug has a smooth through-hole as a sliding part. Connector 4-1 is a rod-shaped structure that inserts into the through-hole, allowing the impregnation container 1 and the base 3 to slide along the connector 4-1. It should be noted that the number of connectors 4-1 is not limited, as long as they can connect the impregnation container 1 and the base 3. Fixing members 4-2 are provided on the connector 4-1, using snap-fit, threaded connection, etc. Two fixing members 4-2 cooperate to adjust the distance between the impregnation container 1 and the base 3, thereby clamping the battery 10 to be impregnated. Of course, more fixing members 4-2 can be provided to strengthen the connection. It should be noted that the number of connectors 4-1 and fixing members 4-2 is not limited, as long as they can fix the impregnation container 1 and the base 3.

[0071] In use, the battery 10 is placed in the preset position on the base 3. The movable impregnation liquid container 1 is slid along the connector 4-1 until it contacts the battery 10 to be impregnated. The position of the fixing member 4-2 is adjusted to clamp the battery 10. The process of removing the battery 10 after impregnation is the reverse of the above process. With this configuration, the impregnation liquid container 1 and the base 3 are connected as one unit through the connector 4-1, which effectively ensures the integrity and stability of the impregnation system, avoids cumbersome assembly, improves impregnation efficiency, and allows the positions of the impregnation liquid container 1 and the base 3 to be adjusted at will along the connector 4-1, improving the flexibility and practicality of the impregnation system. This is beneficial for operators and reduces their labor intensity. Furthermore, the main load-bearing and easily damaged components are the connector 4-1 and the fixing member 4-2, which facilitates maintenance operations such as repair and replacement, reducing costs.

[0072] Based on the above embodiment, the connecting part 4-1 is a screw, and the fixing part 4-2 is a nut. The threaded engagement is simple to operate, provides a stable connection, is easy to manufacture, and has a low cost.

[0073] Based on the above embodiment, the impregnation liquid container 1 is a trough-shaped structure with an open top. The top of the impregnation liquid container 1 is provided with a top cover 9 for sealing the impregnation chamber 1-1. The opening and the second through hole 1-4 are both provided on the top cover 9.

[0074] Specifically, such as Figure 5As shown, the impregnation liquid container 1 is a trough-shaped structure with an open top. The open top of the trough-shaped structure is closed by a top cover 9. An opening 1-2 and a second through hole 1-4 are provided on the top cover 9. An ear seat is provided on the outer side wall of the top cover 9. The ear seat has a smooth through hole as a sliding part, so that the top cover 9, the impregnation liquid container 1 and the base 3 can be connected. This arrangement facilitates the assembly of the impregnation spray pipe 2 and the cleaning of the impregnation system.

[0075] Based on the above embodiment, the angle between the axis of the first through hole 2-1 and the extension direction of the immersion nozzle 2 away from the immersion liquid container 1 is an acute angle.

[0076] Specifically, such as Figure 7 and Figure 8 As shown, the first through hole 2-1 is inclined relative to the wall of the immersion nozzle 2, and the angle between the centerline of the first through hole 2-1 and the extension direction of the immersion nozzle 2 toward its bottom end is an acute angle.

[0077] In use, the bottom end of the impregnation nozzle 2 is inserted into the channel of the battery 10 to be impregnated. When the impregnation liquid flows out through the first through hole 2-1, it follows the direction of water flow and impacts the inner wall of the channel of the battery 10 to be impregnated at an angle, promoting the flow of the impregnation liquid and ensuring a larger spray coverage area. The impregnation liquid penetrates into the gaps in the inner wall of the channel more quickly, ensuring a better impregnation effect. In addition, it ensures a better treatment effect when purging the inner wall of the channel and cleaning the impregnation system later.

[0078] Based on the above embodiments, the bottom side of the inner wall of the impregnation liquid container 1 is provided with a plurality of spiral-shaped grooves 1-5, and each spiral-shaped groove 1-5 is connected to the corresponding mounting through hole 1-3.

[0079] Specifically, such as Figure 5 and Figure 6 As shown, the mounting through hole 1-3 is located at the bottom of the impregnation liquid container 1. A spiral-shaped flower groove 1-5 is opened on the bottom side wall of the impregnation chamber 1-1. The spiral-shaped flower groove 1-5 is an arc-shaped groove and is connected to the mounting through hole 1-3. When viewed from above, the spiral-shaped flower groove 1-5 and the mounting through hole 1-3 are shaped like flowers. In use, the spiral-shaped flower groove 1-5 plays a role in guiding the impregnation liquid, promoting the flow of the impregnation liquid, and ensuring the impregnation effect.

[0080] It should be noted that there are no restrictions on the specific shape or number of the spiral-shaped flower troughs 1-5, as long as they can achieve the effect of drainage.

[0081] Based on the above embodiment, the top end of the impregnation nozzle 2 is a funnel-shaped structure, and the mounting through hole 1-3 is a conical countersunk hole, with the funnel-shaped structure of the impregnation nozzle 2 snapped into the mounting through hole 1-3.

[0082] Specifically, such as Figure 6 and Figure 7 As shown, the mounting through hole 1-3 is a conical countersunk hole, and the top end of the mounting through hole 1-3, located on the inner wall of the impregnation chamber 1-1, has a wider cross-section than the other end. The top of the impregnation nozzle 2 is flared, and the top width of the flared structure is wider than its bottom width. During assembly, the bottom end of the impregnation nozzle 2 is inserted into the opening 1-2 of the impregnation liquid container 1, and then further inserted into the mounting through hole 1-3 until the flared structure at the top of the impregnation nozzle 2 contacts the frustum-shaped mounting through hole 1-3. The flared structure mates with the frustum-shaped hole, thus securing the impregnation nozzle 2 in the mounting through hole 1-3. This design allows the flared structure at the top of the impregnation nozzle 2 to guide the flow of the impregnation liquid, ensuring the impregnation effect. The frustum-shaped mounting through hole 1-3 effectively holds the impregnation nozzle 2 in place, simplifying assembly and resulting in a simple impregnation system structure.

[0083] Furthermore, a sealing ring is provided between the impregnation nozzle 2 and the mounting through hole 1-3 to effectively ensure the sealing performance of the impregnation system. The frustum-shaped mounting through hole 1-3 facilitates the assembly of the sealing ring and the impregnation system, and the sealing ring that can be matched with the frustum hole is easy to obtain and has a low cost.

[0084] Based on the above embodiment, the junctions between the inner sidewalls of the impregnation liquid container 1 are provided with rounded corners. Specifically, as shown... Figure 5 As shown, the joints of the side walls inside the impregnation liquid container 1 are rounded, which can guide and promote the flow of the impregnation liquid, thereby avoiding waste caused by impregnation liquid residue, and can clean the impregnation system without dead corners, ensuring the cleaning effect.

[0085] Based on any of the above embodiments, the top surface of the base 3 is provided with a receiving groove 3-1, which can hold the battery 10 to be immersed, and a sealing gasket is provided at the bottom of the receiving groove 3-1. Specifically, as shown... Figure 9 As shown, the receiving groove 3-1 is set on the top surface of the base 3. After the battery 10 to be immersed is placed inside the receiving groove 3-1, the battery 10 to be immersed can be stably supported. Preferably, the shape of the receiving groove 3-1 is the same as the end face of the battery 10 to be immersed, and the battery 10 to be immersed can be snapped into the receiving groove 3-1. This setting makes it difficult for the battery 10 to be immersed to tip over and makes it easy to determine the position of the battery 10 to be immersed. A sealing gasket is set on the bottom part or the entire bottom surface of the receiving groove 10. After the battery 10 to be immersed is placed on the sealing gasket and the immersion liquid container is clamped to the base, it can be sealed to avoid waste of immersion liquid. Moreover, when using the blower 7, the sealing gasket helps to maintain pressure and effectively ensure the immersion effect.

[0086] Based on any of the above embodiments, both the impregnation liquid container 1 and the base 3 are made of aluminum alloy or stainless steel. Aluminum alloys and stainless steel are easy to process, have stable overall performance, are corrosion-resistant, and are not easily damaged, effectively improving the service life of the impregnation system and reducing manufacturing and maintenance costs.

[0087] Based on any of the above embodiments, the impregnation nozzle 1 is a glass tube or a PVC hose. Glass tubes have stable performance, are difficult to react with the impregnation liquid, and have excellent corrosion resistance, effectively ensuring the impregnation effect. Furthermore, glass tubes are easy to process, greatly reducing costs. PVC hoses are elastic components, not easily damaged, effectively improving the service life of the impregnation system.

[0088] It should be noted that the terms "upper surface," "lower surface," "top," and "bottom" mentioned above, as well as the directional terms "upper," "lower," "left," and "right," are defined based on the accompanying drawings in the instruction manual.

[0089] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0090] The impregnation system for solid oxide fuel cells provided by this invention has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core ideas of this invention. It should be noted that those skilled in the art can make various improvements and modifications to this invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this invention.

Claims

1. An impregnation system for a solid oxide fuel cell, characterized in that, include: An impregnation liquid container (1) has an impregnation cavity (1-1) for containing impregnation liquid and an opening (1-2) for injecting impregnation liquid into the impregnation cavity (1-1), and the bottom surface of the impregnation liquid container (1) is provided with an installation through hole (1-3). An impregnation nozzle (2) with an open top is inserted into the mounting through hole (1-3), and the impregnation liquid in the impregnation chamber (1-1) can flow into the impregnation nozzle (2). The body of the impregnation nozzle (2) is provided with a first through hole (2-1). Base (3), which is used to support the battery (10) to be impregnated. A connecting component (4) is used to connect the impregnation container (1) and the base (3) to clamp or release the battery (10) to be impregnated. The body of the impregnation nozzle (2) is provided with a plurality of first through holes (2-1), and the impregnation liquid container (1) has a second through hole (1-4), and the second through hole (1-4) is connected to the blower (7). The opening (1-2) of the impregnation liquid container (1) is connected to the pump (5), and the pump (5) is connected to the impregnation liquid reservoir (6) whose inner cavity contains the impregnation liquid. A heating assembly (8) is provided between the blower (7) and the impregnation liquid container (1) for heating the gas; Heating plates are provided on the sides of the base (3) and the impregnation liquid container (1) for heating the battery (10) to be impregnated. The fan (7) is a blower that can be used for both blowing and suction.

2. The impregnation system for a solid oxide fuel cell according to claim 1, characterized in that, The connecting component (4) includes a connector (4-1) and at least two fasteners (4-2). The impregnation liquid container (1) and the base (3) are slidably disposed on the connector (4-1). The fixing member (4-2) cooperates with the connector (4-1) to fix the position of the impregnation liquid container (1) and the base (3).

3. The impregnation system for a solid oxide fuel cell according to claim 2, characterized in that, The connector (4-1) is a screw, and the fixing component (4-2) is a nut.

4. The impregnation system for a solid oxide fuel cell according to claim 3, characterized in that, The impregnation liquid container (1) is a trough-shaped structure with an open top. The top of the impregnation liquid container (1) is provided with a top cover (9) for sealing the impregnation chamber (1-1). The opening (1-2) and the second through hole (1-4) are both provided on the top cover (9).

5. The impregnation system for a solid oxide fuel cell according to claim 1, characterized in that, The angle between the axis of the first through hole (2-1) and the extension direction of the impregnation nozzle (2) away from the impregnation liquid container (1) is an acute angle.

6. The impregnation system for a solid oxide fuel cell according to claim 1, characterized in that, The bottom side of the inner wall of the impregnation liquid container (1) is provided with a number of spiral flower grooves (1-5), and each of the spiral flower grooves (1-5) is connected to the corresponding mounting through hole (1-3).

7. The impregnation system for a solid oxide fuel cell according to claim 6, characterized in that, The top end of the impregnation nozzle (2) is a flared structure, and the mounting through hole (1-3) is a conical countersunk hole. The flared structure of the impregnation nozzle (2) is engaged with the mounting through hole (1-3).

8. The impregnation system for a solid oxide fuel cell according to claim 7, characterized in that, The inner walls of the impregnation container (1) are provided with rounded corners.

9. The impregnation system for a solid oxide fuel cell according to any one of claims 1 to 8, characterized in that, The top surface of the base (3) is provided with a receiving groove (3-1), which can hold the battery (10) to be immersed, and the bottom of the receiving groove (3-1) is provided with a sealing gasket.

10. The impregnation system for a solid oxide fuel cell according to any one of claims 1 to 8, characterized in that, The impregnation liquid container (1) and the base (3) are both made of aluminum alloy or stainless steel.

11. The impregnation system for a solid oxide fuel cell according to any one of claims 1 to 8, characterized in that, The impregnation nozzle (2) is a glass tube or a PVC hose.

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