Fuel Reformer

Abstract

The present invention relates to the field of fuel cell technology, and in particular to a fuel reforming device, comprising a shell, a fuel supply pipe and a steam supply pipe, the shell being provided with a reforming chamber and a mixing chamber, the mixing chamber being connected with the reforming chamber, the mixing chamber being able to be filled with a catalyst for reforming fuel, the fuel supply pipe being connected with the mixing chamber, and fuel being able to be introduced into the mixing chamber, the steam supply pipe being able to introduce steam into the mixing chamber, the steam and fuel being mixed in the mixing chamber and entering the reforming chamber filled with the catalyst, and reforming the fuel under the catalysis of the catalyst, since the steam supply pipe is provided with an air inlet unit and an air outlet unit, the air inlet unit extends to the reforming chamber, and the air outlet unit extends to the mixing chamber, so that the steam introduced can exchange heat with the catalyst in the reforming chamber when flowing through the air inlet unit, thereby heating the catalyst, and making full use of the heat of the high-temperature steam, thereby improving the power generation efficiency of the fuel cell.

Description

Technical Field

[0001] The present invention relates to the technical field of fuel cells, and in particular to a fuel reforming device. Background Art

[0002] Solid oxide fuel cell stacks (SOFCs) can provide greater fuel flexibility by internally reforming hydrocarbon fuels such as methane, propane, ethanol, and natural gas at the anode. By internally reforming hydrocarbon fuels in SOFCs, efficiency improvements and simplified system integration can be observed. In order to better utilize the fuel compatibility and diversity of hydrogen production of SOFCs, an external reformer is generally used in combination with a fuel cell stack.

[0003] For example, the micro methane reforming hydrogen generator disclosed in the patent document with publication number CN210103451U includes a shell and multiple reaction tubes. The shell is provided with a heating chamber, a heating gas inlet and a residual gas outlet. The bottom of the heating chamber is provided with a preheating mixing chamber, and the top of the heating chamber is provided with a reforming gas mixing chamber; the reaction tube is arranged in the heating chamber. During the reforming operation, the combustion gas or hot air is introduced into the heating chamber through the heating gas inlet to heat the entire reactor, the combustion exhaust gas or the hot air after heat exchange is discharged from the residual gas outlet, methane and water vapor enter the preheating mixing chamber through the raw gas inlet, and the mixed gas is introduced into the reaction tube for reforming reaction; the hydrogen-rich gas after the reaction is mixed in the reforming gas mixing chamber and then flows out from the reforming gas outlet. By evenly distributing the reaction tubes in the heating chamber, the reformer can make full use of the heat of the combustion gas to evenly heat each reaction tube, avoiding problems such as reduced efficiency caused by uneven heat.

[0004] Although the reformer can achieve uniform heating of the reaction tube by burning exhaust gas or hot air after heat exchange to promote the reforming of methane fuel, the water vapor exhaust gas of the fuel cell needs to pass into a preheating mixing chamber to mix with the methane fuel before entering the reaction tube. A large amount of heat will be dissipated during the mixing process, making it difficult to effectively utilize the heat contained in the water vapor, resulting in a reduction in the reforming efficiency of the reformer, and further reducing the power generation efficiency of the fuel cell. Summary of the invention

[0005] In view of this, it is necessary to provide a fuel reforming device to solve the technical problem that the fuel reforming device in the prior art is difficult to fully utilize the waste heat of water vapor, resulting in reduced reforming efficiency of the reformer and affecting the power generation efficiency of the fuel cell.

[0006] In order to achieve the above technical objectives, the technical solution of the present invention provides a fuel reforming device, comprising:

[0007] A shell is provided with a reforming chamber and a mixing chamber, wherein the mixing chamber is communicated with the reforming chamber, and the reforming chamber is provided with a catalyst and reforms the fuel through the catalyst;

[0008] a fuel supply pipe, connected to the mixing chamber, and used for supplying fuel to the mixing chamber;

[0009] The steam supply pipe comprises an air inlet unit and an air outlet unit, wherein the air inlet unit extends to the reforming chamber for air intake, and the air outlet unit is connected with the air inlet unit and extends to the mixing chamber for air outlet.

[0010] Furthermore, the air intake unit includes a steam inlet pipe and a heat exchange coil, the heat exchange coil is coiled around the reforming chamber, the steam inlet pipe is connected to the steam inlet pipe of the heat exchange coil for introducing steam, and the air outlet unit is connected to the air outlet of the heat exchange coil.

[0011] Furthermore, the fuel reforming device also includes an annular limit cylinder, which is installed in the reforming chamber, and the inner side surface and outer side surface of the annular limit cylinder respectively form an inner heat absorption surface and an outer heat dissipation surface, and the heat exchange coil is sleeved on the inner heat absorption surface and the outer heat dissipation surface.

[0012] Furthermore, the fuel reforming device also includes a heater, and the inner side of the annular limit cylinder forms a uniform heating chamber filled with nitrogen. The heater is fixed to the shell and extends to the uniform heating chamber, and is used to heat the uniform heating chamber. The inner heat absorbing surface is provided with a black chrome electroplating layer, and the black chrome electroplating layer is used for absorbing heat.

[0013] Furthermore, the air outlet unit includes a connecting pipe and a steam dispersion pipe, the connecting pipe is connected to the air inlet unit and extends to the mixing chamber, the steam dispersion pipe is located in the mixing chamber and communicated with the connecting pipe, and the steam dispersion pipe is provided with a plurality of steam dispersion holes.

[0014] Furthermore, the fuel supply pipe includes a fuel intake pipe, a distribution pipe and a plurality of fuel dispersion pipes, the fuel intake pipe is fixed to the shell and extends to the mixing chamber, the distribution pipe is located in the mixing chamber and is connected to the fuel intake pipe, each of the fuel dispersion pipes is evenly spaced and connected to the distribution pipe, and each of the fuel dispersion pipes is provided with a plurality of evenly spaced fuel dispersion holes.

[0015] Furthermore, the mixing chamber is provided with a first partition frame and a second partition frame, the first partition frame and the second partition frame are staggered and divide the mixing chamber into an air intake chamber, a guide chamber and a distribution chamber which are connected in sequence, the air intake chamber is used for introducing fuel and steam, the guide chamber is used for mixing the fuel and steam by guiding the fuel and steam, and the distribution chamber is connected to the reforming chamber.

[0016] Furthermore, the second partition frame is provided with a plurality of mixing plates arranged at intervals, each of the mixing plates extends to the flow guide cavity, each of the mixing plates is provided with a mixing hole, and the mixing holes of adjacent mixing plates are staggered.

[0017] Furthermore, the shell is also provided with a mixing chamber, which is located between the mixing chamber and the reforming chamber and is communicated with the mixing chamber and the reforming chamber. The mixing chamber is used to fill the zirconium oxide balls and mix the fuel and steam.

[0018] Furthermore, a first partition plate is arranged between the mixing chamber and the mixing chamber, and the first partition plate is provided with a plurality of evenly spaced first dispersion holes; a second partition plate is arranged between the mixing chamber and the reforming chamber, and the second partition plate is provided with a plurality of evenly spaced second dispersion holes.

[0019] Compared with the prior art, the beneficial effects of the fuel reforming device of the present invention include: by setting a shell, a fuel supply pipe and a steam supply pipe, the shell is provided with a reforming chamber and a mixing chamber, the mixing chamber is connected with the reforming chamber, the mixing chamber can be filled with a catalyst for reforming fuel, the fuel supply pipe is connected with the mixing chamber, fuel can be introduced into the mixing chamber, the steam supply pipe can introduce steam into the mixing chamber, the steam and fuel enter the reforming chamber filled with the catalyst after being mixed in the mixing chamber, and the fuel is reformed under the catalysis of the catalyst, because the steam supply pipe is provided with an air intake unit and an air outlet unit, the air intake unit extends to the reforming chamber, and the air outlet unit extends to the mixing chamber, so that the steam introduced can exchange heat with the catalyst in the reforming chamber when flowing through the air intake unit, thereby heating the catalyst, and fully utilizing the heat of the high-temperature steam, thereby improving the reforming efficiency of the reformer, and furthermore being able to form more fuel and provide it to the fuel cell, thereby improving the power generation efficiency of the fuel cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of a fuel reforming device provided in an embodiment of the present invention;

[0021] Figure 2 is a schematic diagram of the internal structure of a fuel reforming device provided in an embodiment of the present invention;

[0022] Figure 3 It is a cross section of the annular limiting cylinder of the fuel reforming device provided in an embodiment of the present invention.

[0023] Among them, the reference numerals in the figure are:

[0024] 10—housing 11—reforming chamber 12—mixing chamber

[0025] 13—mixing chamber 14—catalyst adding port 15—ball adding port

[0026] 16 - air outlet cavity 20 - fuel supply pipe 21 - fuel intake pipe

[0027] 22 - distribution pipe 23 - fuel distribution pipe 30 - steam supply pipe

[0028] 31 - air inlet unit 32 - air outlet unit 40 - annular limiting cylinder

[0029] 41—Inner heat absorbing surface 42—Outer heat dissipating surface 43—Heat uniform cavity

[0030] 44 - top sealing plate 45 - bottom sealing plate 50 - heater

[0031] 121 - first partition frame 122 - second partition frame 123 - air inlet chamber

[0032] 124—flow guiding cavity 125—distribution cavity 131—first partition plate

[0033] 132 - second partition plate 161 - third partition plate 231 - fuel distribution hole

[0034] 311—steam inlet pipe 312—heat exchange coil 321—connecting pipe

[0035] 322—steam dispersion pipe 411—black chrome plating layer 421—heat conducting rod

[0036] 441 - first perforation 451 - second perforation 1221 - mixing plate

[0037] 1222—mixing hole 1311—first dispersion hole 1321—second dispersion hole

[0038] 3221—steam dispersion hole 1611—air outlet hole. DETAILED DESCRIPTION

[0039] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0040] An embodiment of the present invention provides a fuel reforming device, which improves the reforming efficiency of the reformer by fully utilizing the heat of water vapor in the high-temperature exhaust gas generated by the fuel cell stack, thereby solving the technical problem that the fuel reforming device in the prior art is difficult to fully utilize the waste heat of water vapor, resulting in low reforming efficiency of the reformer, thereby reducing the power generation efficiency of the fuel cell.

[0041] The fuel reforming device provided in the embodiment of the present invention is used to produce hydrogen through reforming. By connecting the outlet of the reformer to the fuel cell, the hydrogen generated by the reforming is introduced into the fuel cell for use by the fuel cell.

[0042] like Figure 1~2 As shown, the fuel reforming device includes a shell 10, a fuel supply pipe 20 and a steam supply pipe 30. The shell 10 is provided with a reforming chamber 11 and a mixing chamber 12. The mixing chamber 12 is connected to the reforming chamber 11. The reforming chamber 11 is provided with a catalyst and reforms the fuel through the filled catalyst. The fuel supply pipe 20 is connected to the mixing chamber 12 and is used to introduce fuel into the mixing chamber 12. The steam supply pipe 30 includes an air intake unit 31 and an air outlet unit 32. The air intake unit 31 extends to the reforming chamber 11 and is provided for air intake. The air outlet unit 32 is connected to the air intake unit 31 and extends to the mixing chamber 12 and is provided for air outlet.

[0043] Specifically, the fuel reforming device is provided with a shell 10, a fuel supply pipe 20 and a steam supply pipe 30. The shell 10 is provided with a reforming chamber 11 and a mixing chamber 12. The mixing chamber 12 is connected with the reforming chamber 11. The mixing chamber 12 can be filled with a catalyst for reforming fuel to form a catalyst bed. The fuel supply pipe 20 is connected with the mixing chamber 12, and fuel can be introduced into the mixing chamber 12. The steam supply pipe 30 can introduce steam into the mixing chamber 12. After the steam and fuel are mixed in the mixing chamber 12, they enter the reforming chamber 11 filled with the catalyst and are catalyzed by the catalyst. The fuel is reformed. Since the steam supply pipe 30 is provided with an air inlet unit 31 and an air outlet unit 32, the air inlet unit 31 extends to the reforming chamber 11, and the air outlet unit 32 extends to the mixing chamber 12, so that the steam introduced can exchange heat with the catalyst bed of the reforming chamber 11 when flowing through the air inlet unit 31, thereby heating the catalyst bed, which can fully utilize the heat of the high-temperature steam, improve the reforming efficiency of the reformer, and further form more fuel and provide it to the fuel cell, thereby improving the power generation efficiency of the fuel cell.

[0044] In this embodiment, the fuel reforming device mainly utilizes a catalyst bed to reform fuel and steam under high temperature conditions to produce hydrogen for use in a fuel cell, wherein the fuel required for reforming can be methane, propane, ethanol and other hydrocarbon substances that can produce hydrogen through reforming.

[0045] like Figure 2 As shown, in one embodiment, the air intake unit 31 includes a steam air intake pipe 311 and a heat exchange coil 312, the heat exchange coil 312 is coiled around the reforming chamber 11, the steam air intake pipe 311 is connected to the steam air intake pipe 311 of the heat exchange coil 312, and steam is introduced into the air outlet unit 32. Specifically, the high-temperature steam enters the heat exchange coil 312 through the steam air intake pipe 311, and during the flow of the heat exchange coil 312, heat is exchanged with the catalyst bed of the reforming chamber 11, so that the catalyst bed is added, and the heat contained in the high-temperature steam can be fully utilized. After the heat exchange, the high-temperature steam enters the air outlet unit 32 and is guided to the mixing chamber 12 through the air outlet unit 32.

[0046] like Figure 2 As shown, in one of the embodiments, the fuel reforming device further includes an annular limiting cylinder 40, which is installed in the reforming chamber 11, and the heat exchange coil 312 is sleeved on the outer side and the inner side of the annular limiting cylinder 40. Specifically, the annular limiting cylinder 40 can realize the limiting of the heat exchange coil 312 with an inner and outer double-layer structure, the outer layer structure of the heat exchange coil 312 fits with the outer side of the annular limiting cylinder 40, and the inner layer structure of the heat exchange coil 312 fits with the inner side of the annular limiting cylinder 40, so that the steam can achieve efficient heat exchange with the annular limiting cylinder 40 while exchanging heat with the catalyst bed, thereby fully directing the heat to the reforming chamber 11.

[0047] like Figure 2 As shown, in one embodiment, the inner side surface and the outer side surface of the annular limiting cylinder 40 respectively form an inner heat absorbing surface 41 and an outer heat dissipating surface 42, and the heat exchange coil is sleeved on the inner heat absorbing surface 41 and the outer heat dissipating surface 42. Specifically, by setting the inner heat absorbing surface 41 and the outer heat dissipating surface 42, the annular limiting cylinder 40 can not only fix the heat exchange coil 312, but also absorb the heat of the heat exchange coil 312 through the inner heat absorbing surface 41 and the outer heat dissipating surface 42. On the one hand, the heat utilization rate of the steam inside the heat exchange coil 312 can be improved, and on the other hand, the heat can be evenly guided to the catalyst bed of the reforming chamber 11 through the outer heat dissipating surface 42, thereby reducing the temperature gradient in the height direction of the reforming chamber and ensuring that the catalyst bed is heated evenly.

[0048] like Figure 1~2 As shown, in one embodiment, the fuel reforming device further includes a heater 50, and a uniform heat chamber 43 filled with nitrogen is formed on the inner side of the annular limiting cylinder 40. The heater is fixed to the shell and extends to the uniform heat chamber 43, and is used to heat the uniform heat chamber 43. The inner heat absorbing surface 41 is provided with a black chrome electroplating layer 411, and the black chrome electroplating layer 411 is used for heat absorption. Specifically, the heater 50 can heat the uniform heat chamber 43. Since the uniform heat chamber 43 is filled with nitrogen, the nitrogen can diffuse the heat uniformly to the uniform heat chamber 43, and finally be absorbed by the black chrome electroplating layer 411 of the inner heat absorbing surface 41, and then uniformly guided to the outer heat dissipation surface 42 through the annular limiting cylinder 40, and uniformly guided to the catalyst bed of the reforming chamber by the outer heat dissipation surface 42, so that the point heat transfer of the heater 50 is converted into the surface heat transfer of the outer heat dissipation surface 42, and the heat required for reforming is supplemented to the catalyst bed, and the temperature gradient in the height direction of the reforming chamber is reduced, so as to ensure that the catalyst bed is heated uniformly.

[0049] In this embodiment, the air outlet of the heat exchange coil 312 is disposed in the inner structure of the heat exchange coil 312 .

[0050] In this embodiment, a top sealing plate 44 is provided at the top of the annular limiting cylinder 40, and the top sealing plate 44 is provided with a first through hole 441 for the heater 50 to pass through. A bottom sealing plate 45 is provided at the bottom of the annular limiting cylinder 40, and the bottom sealing plate 45 is provided with a second through hole 451 for the air outlet of the heat exchange coil 312 to pass through. The bottom sealing plate 45 and the top sealing plate 44 can seal the upper and lower sides of the uniform heat chamber 43.

[0051] like Figure 3 As shown, in one of the embodiments, a plurality of evenly spaced heat-conducting rods 421 are fixed to the outer heat dissipation surface 42, and the heat-conducting rods 421 extend toward the catalyst bed. The heat-conducting rods 421 can help to radially transfer the heat of the outer heat dissipation surface 42 to different depths of the catalyst bed, thereby reducing the radial temperature gradient of the reforming chamber.

[0052] like Figure 2 As shown, in one embodiment, the gas outlet unit 32 includes a connecting pipe 321 and a steam dispersion pipe 322, the connecting pipe 321 is connected to the gas inlet unit 31 and extends to the mixing chamber 12, the steam dispersion pipe 322 is located in the mixing chamber 12 and communicates with the connecting pipe 321, and the steam dispersion pipe 322 is provided with a plurality of steam dispersion holes 3221. Specifically, the gas outlet unit 32 is provided with the connecting pipe 321 and the steam dispersion pipe 322, and the steam exchanges heat with the catalyst bed through the heat exchange coil 312, and then enters the connecting pipe 321 from the outlet of the heat exchange coil 312, and then enters the steam dispersion pipe 322 through the connecting pipe 321, and finally is evenly distributed to the mixing chamber 12 through the steam dispersion holes 3221 of the steam dispersion pipe 322, so as to facilitate the uniform mixing of steam and fuel, ensure the reforming quality of the fuel, and enable the reformer to form a higher purity hydrogen fuel, thereby effectively improving the power generation efficiency of the fuel cell.

[0053] like Figure 2 As shown, in one embodiment, the fuel supply pipe 20 includes a fuel intake pipe 21, a distribution pipe 22 and a plurality of fuel dispersion pipes 23. The fuel intake pipe 21 is fixed to the housing 10 and extends to the mixing chamber 12. The distribution pipe 22 is located in the mixing chamber 12 and communicates with the fuel intake pipe 21. Each fuel dispersion pipe 23 is evenly spaced and communicates with the distribution pipe 22. Each fuel dispersion pipe 23 is provided with a plurality of evenly spaced fuel dispersion holes 231. Specifically, the fuel enters the distribution pipe 22 through the fuel intake pipe 21, enters each fuel dispersion pipe 23 under the distribution of the distribution pipe 22, and then is evenly dispersed to the mixing chamber 12 through each fuel dispersion hole 231 of each fuel dispersion pipe 23, so as to facilitate even mixing with steam, ensure the reforming quality of the fuel, and improve the power generation efficiency of the fuel cell.

[0054] like Figure 2As shown, in one embodiment, the mixing chamber 12 is provided with a first partition frame 121 and a second partition frame 122, the first partition frame 121 and the second partition frame 122 are arranged alternately, and the mixing chamber 12 is divided into an air intake chamber 123, a flow guide chamber 124 and a distribution chamber 125 which are connected in sequence, the air intake chamber 123 is used to introduce fuel and steam, the flow guide chamber 124 is used to mix the fuel and steam by guiding the fuel and steam, and the distribution chamber 125 is connected with the reforming chamber 11. Specifically, after the fuel and steam are supplied into the air intake chamber 123, they are guided into the distribution chamber 125 by the flow guide chamber 124. In the process of flowing through the distribution chamber 125, the fuel gas and steam are gradually mixed, and the mixed gas finally enters the distribution chamber 125 for diffusion. The diffused mixed gas finally enters the reforming chamber 11 for reforming. By setting the first partition frame 121 and the second partition frame 122, the mixing of steam and fuel can be effectively promoted, the reforming quality of the fuel can be ensured, and the power generation efficiency of the fuel cell can be improved.

[0055] In this embodiment, the fuel dispersion pipe 23 and the steam dispersion pipe 322 are both located in the air inlet cavity 123 .

[0056] like Figure 2 As shown, in one embodiment, the second partition frame 122 is provided with a plurality of mixing plates 1221 arranged at intervals, each mixing plate 1221 extends to the flow guide cavity 124, each mixing plate 1221 is provided with a mixing hole 1222, and the mixing holes 1222 of adjacent mixing plates 1221 are arranged in a staggered manner. Specifically, by setting the mixing holes 1222 of each mixing plate 1221, the fuel and steam can form a mixed flow when flowing through the flow guide cavity 124, thereby achieving mixing of the steam and the fuel.

[0057] like Figure 2 As shown, in one embodiment, the housing 10 is further provided with a mixing chamber 13, which is located between the mixing chamber 12 and the reforming chamber 11 and communicated with the mixing chamber 12 and the reforming chamber 11. The mixing chamber 13 is used to fill the zirconia balls and mix the fuel and steam. Specifically, the steam and the fuel are initially mixed in the mixing chamber 12, and then enter the mixing chamber 13, and then enter the reforming chamber 11 through the mixing chamber 13 for reforming. The mixing chamber 13 can fully mix the fuel and the steam by filling the zirconia balls, so that the temperature of the fuel is kept uniform, the reforming quality of the fuel is ensured, and the power generation efficiency of the fuel cell is improved.

[0058] like Figure 1~2 As shown, in this embodiment, the surface of the shell 10 is also provided with a catalyst addition port 14 and a ball addition port 15, and the catalyst addition port 14 and the ball addition port 15 are respectively connected to the reforming chamber 11 and the mixing chamber 13. The catalyst addition port 14 is used to add catalyst to the reforming chamber 11, and the ball addition port 15 is used to add zirconium oxide balls to the mixing chamber 13.

[0059] like Figure 2 As shown, in one embodiment, a first partition plate 131 is provided between the mixing chamber 13 and the mixing chamber 12, and the first partition plate 131 is provided with a plurality of evenly spaced first dispersion holes 1311, and a second partition plate 132 is provided between the mixing chamber 13 and the reforming chamber 11, and the second partition plate 132 is provided with a plurality of evenly spaced second dispersion holes 1321. Specifically, the mixed gas of the fuel and the steam is evenly dispersed to the mixing chamber 13 through the first dispersion holes 1311, and then is fully mixed in the mixing chamber 13, and then is evenly dispersed to the reforming chamber 11 through the second dispersion holes 1321, thereby ensuring the reforming quality of the fuel and improving the power generation efficiency of the fuel cell.

[0060] like Figure 2 As shown, in one of the embodiments, an air outlet cavity 16 is further provided inside the shell 10, and a third partition plate 161 is provided between the air outlet cavity 16 and the reforming cavity 11. The third partition plate 161 is provided with a plurality of evenly spaced air outlet holes 1611. The air outlet holes 1611 can facilitate the reformed exhaust gas to enter the air outlet cavity 16, thereby realizing rapid exhaust of the reforming cavity 11 and avoiding the accumulation of exhaust gas inside the reforming cavity 11.

[0061] The fuel cell stack provided in the embodiment of the present invention includes a fuel cell and a fuel reforming device, wherein the tail gas outlet of the fuel cell is connected to the steam supply pipe 30 of the fuel reforming device, and the fuel inlet of the fuel cell is connected to the reforming gas outlet of the fuel reforming device. Specifically, the high-temperature flue gas containing water vapor formed during the power generation process of the fuel cell is discharged from the tail gas outlet and enters the steam supply pipe 30 of the fuel reforming device, providing raw materials and heat to the reforming of the reforming device, and the hydrogen generated by the reforming of the fuel reforming device can be passed into the fuel cell through the fuel gas inlet of the fuel cell for use by the fuel cell. The reforming device can fully utilize the heat of the high-temperature water vapor in the tail gas of the fuel cell, thereby more efficiently forming hydrogen, providing more fuel for the fuel cell, and improving the power generation efficiency of the fuel cell.

[0062] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A fuel reforming device, characterized in that: include: The shell is provided with a reforming chamber, a mixing chamber and a mixing chamber, wherein the mixing chamber is communicated with the reforming chamber, the reforming chamber is provided with catalyst, and fuel is reformed by the catalyst; the mixing chamber is located between the mixing chamber and the reforming chamber and is communicated with the mixing chamber and the reforming chamber, the mixing chamber is provided with zirconium oxide balls, and mixed fuel and steam; a first partition plate is provided between the mixing chamber and the mixing chamber, the first partition plate is provided with a plurality of evenly spaced first dispersion holes, a second partition plate is provided between the mixing chamber and the reforming chamber, the second partition plate is provided with a plurality of evenly spaced second dispersion holes; a fuel supply pipe, connected to the mixing chamber, and used for supplying fuel to the mixing chamber; A steam supply pipe, comprising an air inlet unit and an air outlet unit, wherein the air inlet unit extends to the reforming chamber for air intake, and the air outlet unit is connected to the air inlet unit and extends to the mixing chamber for air outlet; the air inlet unit comprises a steam air inlet pipe and a heat exchange coil, the heat exchange coil is coiled around the reforming chamber, the steam air inlet pipe is connected to the steam air inlet pipe of the heat exchange coil for steam introduction, and the air outlet unit is connected to the air outlet of the heat exchange coil; An annular limiting cylinder, wherein the annular limiting cylinder is installed in the reforming chamber, wherein the inner side surface and the outer side surface of the annular limiting cylinder respectively form an inner heat absorbing surface and an outer heat dissipating surface, and the heat exchange coil is sleeved on the inner heat absorbing surface and the outer heat dissipating surface; and A heater, wherein a uniform heating chamber filled with nitrogen is formed on the inner side of the annular limiting cylinder, and the heater is fixed to the shell and extends to the uniform heating chamber for heating the uniform heating chamber, and a black chrome electroplating layer is provided on the inner heat absorbing surface for absorbing heat.

2. The fuel reforming device according to claim 1, characterized in that: The air outlet unit includes a connecting pipe and a steam dispersion pipe, wherein the connecting pipe is connected to the air inlet unit and extends to the mixing chamber, the steam dispersion pipe is located in the mixing chamber and communicates with the connecting pipe, and the steam dispersion pipe is provided with a plurality of steam dispersion holes.

3. The fuel reforming device according to claim 1, characterized in that: The fuel supply pipe includes a fuel intake pipe, a distribution pipe and a plurality of fuel dispersion pipes. The fuel intake pipe is fixed to the shell and extends to the mixing chamber. The distribution pipe is located in the mixing chamber and is connected to the fuel intake pipe. Each of the fuel dispersion pipes is evenly spaced and connected to the distribution pipe. Each of the fuel dispersion pipes is provided with a plurality of evenly spaced fuel dispersion holes.

4. The fuel reforming device according to claim 1, characterized in that: The mixing chamber is provided with a first partition frame and a second partition frame, the first partition frame and the second partition frame are arranged alternately, and divide the mixing chamber into an air intake chamber, a guide chamber and a distribution chamber which are connected in sequence, the air intake chamber is provided for the introduction of fuel and steam, the guide chamber is used for mixing the fuel and steam by guiding the fuel and steam, and the distribution chamber is connected to the reforming chamber.

5. The fuel reforming device according to claim 4, characterized in that: The second partition frame is provided with a plurality of mixing plates arranged at intervals, each of the mixing plates extends to the flow guide cavity, each of the mixing plates is provided with a mixing hole, and the mixing holes of adjacent mixing plates are arranged in a staggered manner.

Images