SOFC (Solid Oxide Fuel Cell) multi-module electric pile

Abstract

The utility model provides an SOFC (Solid Oxide Fuel Cell) multi-module electric pile and belongs to the field of fuel cells. The electric pile comprises a bottom plate, a groove-shaped support, multiple single batteries and a top plate, the groove-shaped support is arranged on the bottom plate and comprises a first plate body, a second plate body and a third plate body, an air inlet cavity is formed in the first plate body, an air outlet cavity is formed in the second plate body, and a fuel gas inlet cavity is formed in the third plate body; the plurality of single batteries are horizontally arranged in the groove-shaped bracket, the plurality of single batteries are arranged at intervals, the top plate covers the top of the groove-shaped bracket, and a second air inlet hole, a second air outlet hole, a second fuel gas inlet hole and a second fuel gas outlet hole are formed in the top plate. By adopting the SOFC multi-module electric pile provided by the embodiment of the utility model, the problem that the generated power is relatively low in the prior art can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to fuel cell field, especially a kind of SOFC multi-module stack. BACKGROUND

[0002] Solid Oxide Fuel Cell (SOFC) belongs to the third generation fuel cell, it is a kind of directly chemical energy stored in fuel and oxidant under medium-high temperature is efficiently, environmental friendly and converts into electric energy full solid-state chemical power generation device.In working condition, need to be imported into fuel gas and air to stack, so that chemical energy is converted into electric energy.

[0003] And in prior art, single stack is generally used for reaction, and limited to the sintering size of SOFC cell sheet reaction zone at present, leading to the power of single stack is small, cannot satisfy the design requirement of high-power system.

[0004] The stack in prior art is single stack, leading to its power generation power is low. UTILITY MODEL CONTENT

[0005] The utility model embodiment provides a kind of SOFC multi-module stack, can solve the problem of power generation power in prior art too low.The technical solution is as follows:

[0006] A kind of SOFC multi-module stack, comprising: bottom plate, groove support, single cell and top plate,

[0007] The groove support is set on the bottom plate, the groove support includes first plate body, second plate body and third plate body, the first plate body, the second plate body and the third plate body are vertically arranged on the bottom plate, the first plate body and the second plate body are arranged in parallel with interval, the third plate body is perpendicular to the first plate body, air inlet cavity is set in the first plate body, air outlet cavity is set in the second plate body, and fuel gas inlet cavity is set in the third plate body,

[0008] The single cell is provided with multiple, and is arranged in the groove support with interval, the single cell has air side and fuel gas side, the air side is communicated with the air inlet cavity and the air outlet cavity, and the fuel gas side is communicated with the fuel gas inlet cavity,

[0009] The top plate is covered in the top of the groove support, and the top plate is provided with second air inlet hole communicated with the air inlet cavity, second air outlet hole communicated with the air outlet cavity, second fuel gas inlet hole communicated with the fuel gas inlet cavity and second fuel gas outlet hole communicated with the fuel gas side of the single cell.

[0010] Optionally, the single cell comprises a bipolar plate, a fuel gas gasket, a cell sheet and an air gasket, the bipolar plate is provided with two and arranged in parallel and spaced, the fuel gas gasket, the cell sheet and the air gasket are sequentially clamped between the two bipolar plates.

[0011] Optionally, the single cell further comprises a nickel mesh, the nickel mesh is clamped between the fuel gas gasket and the cell sheet.

[0012] Optionally, the single cell further comprises a ceramic sheet, the ceramic sheet is clamped between the cell sheet and the air gasket.

[0013] Optionally, the top of the bipolar plate is arranged with an air channel in the transverse direction, and the bottom of the bipolar plate is arranged with a fuel gas channel in the longitudinal direction.

[0014] Optionally, the first plate body surface is provided with a first air inlet hole in communication with the air inlet cavity, the second plate body surface is provided with a first air outlet hole in communication with the air outlet cavity, the third plate body surface is provided with a first fuel gas inlet hole in communication with the fuel gas inlet cavity, the single cell is provided with a first fuel gas outlet hole, the two ends of the air channel are in communication with the first air inlet hole and the first air outlet hole respectively, the two ends of the fuel gas channel are connected with the first fuel gas inlet hole and the first fuel gas outlet hole respectively, the first air inlet hole, the first air outlet hole and the first fuel gas inlet hole are all strip-shaped holes and are provided with a plurality of holes, the plurality of first air inlet holes are arranged in parallel and spaced, the plurality of first air outlet holes are arranged in parallel and spaced, and the plurality of first fuel gas inlet holes are arranged in parallel and spaced.

[0015] Optionally, the first plate body and the second plate body are provided with a mounting protrusion on the side face close to each other, the mounting protrusion is provided with a plurality of mounting protrusions, and the plurality of mounting protrusions are uniformly and spaced arranged in the vertical direction.

[0016] Optionally, the groove type support is provided with two, the two groove type supports constitute a groove type support group, the two groove type supports are arranged side by side, and the two groove type supports share one first plate body.

[0017] Optionally, the groove type support group is provided with two, the two groove type support groups are oppositely arranged, and the two groove type support groups share one third plate body.

[0018] Optionally, the second plate body is provided with a cleaning port on the side away from the first plate body, a cleaning plate is arranged on the cleaning port, and the cleaning plate is detachably connected with the second plate body.

[0019] The technical scheme provided by the embodiment of the utility model has at least the following beneficial effects:

[0020] The SOFC multi-module stack provided by the embodiment of the utility model, a plurality of single cells arranged horizontally are arranged in the groove support, the external gas pipeline is connected with the second gas inlet hole on the top plate, so that the gas enters the first gas inlet hole through the gas inlet cavity and contacts the single cell, the external air pipeline is connected with the second air inlet hole on the top plate, so that the air enters the first air inlet hole through the air inlet cavity and contacts the single cell, air and gas are supplied to each single cell, so that each single cell can generate electricity independently, and the single cells are connected in series and parallel, so that the total power generation of the stack is increased, thereby effectively solving the problem of low power generation in the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the drawings needed in the embodiment description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creative labor.

[0022] Figure 1 It is the overall structure schematic diagram provided by the embodiment of the utility model;

[0023] Figure 2 It is the overall structure explosion drawing provided by the embodiment of the utility model;

[0024] Figure 3 It is the groove support top view schematic diagram provided by the embodiment of the utility model;

[0025] Figure 4 It is the top plate bottom structure schematic diagram provided by the embodiment of the utility model;

[0026] Figure 5 It is the single cell explosion drawing provided by the embodiment of the utility model;

[0027] Figure 6 It is the bipolar plate top structure schematic diagram provided by the embodiment of the utility model;

[0028] Figure 7 It is the bipolar plate bottom structure schematic diagram provided by the embodiment of the utility model.

[0029] In the figure: 1-bottom plate; 2-groove type support; 21-first plate body; 211-air inlet cavity; 212-first air inlet hole; 22-second plate body; 221-air outlet cavity; 222-first air outlet hole; 223-cleaning port; 224-cleaning plate; 23-third plate body; 231-gas inlet cavity; 232-first gas inlet hole; 24-mounting protrusion; 3-single cell; 31-first gas outlet hole; 32-air channel; 33-gas channel; 34-bipolar plate; 35-gas gasket; 36-battery sheet; 37-air gasket; 38-nickel mesh; 39-ceramic sheet; 4-top plate; 41-second air inlet hole; 42-second air outlet hole; 43-second gas inlet hole; 44-second gas outlet hole; 5-supporting partition; 6-groove. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the present application more clear, the following will make further detailed description to the embodiments of the present application in combination with the drawings.

[0031] Figure 1 is the overall structure schematic diagram provided by the embodiments of the present application; Figure 2 is the overall structure explosion diagram provided by the embodiments of the present application; Figure 3 is the top view schematic diagram of the groove type support provided by the embodiments of the present application; Figure 4 is the top structure schematic diagram of the bipolar plate provided by the embodiments of the present application; Figure 5 is the single cell explosion diagram provided by the embodiments of the present application; Figure 6 is the top structure schematic diagram of the bipolar plate provided by the embodiments of the present application; Figure 7 is the bottom structure schematic diagram of the bipolar plate provided by the embodiments of the present application. Figures 1 to 7The SOFC multi-module stack shown comprises a bottom plate 1, a groove-shaped support 2, single cells 3 and a top plate 4, the groove-shaped support 2 is arranged on the bottom plate 1, the groove-shaped support 2 comprises a first plate body 21, a second plate body 22 and a third plate body 23, the first plate body 21, the second plate body 22 and the third plate body 23 are all arranged vertically on the bottom plate 1, the first plate body 21 and the second plate body 22 are arranged in parallel and at intervals, the third plate body 23 is perpendicular to the first plate body 21, an air inlet cavity 211 is formed in the first plate body 21, an air outlet cavity 221 is formed in the second plate body 22, and a fuel gas inlet cavity 231 is formed in the third plate body 23, the single cells 3 are arranged in the groove-shaped support 2 at intervals in a horizontal direction, the single cells 3 have air sides and fuel gas sides, the air sides are communicated with the air inlet cavity 211 and the air outlet cavity 221, and the fuel gas sides are communicated with the fuel gas inlet cavity 231, the top plate 4 is arranged on the top of the groove-shaped support 2, the top plate 4 is provided with a second air inlet hole 41 communicated with the air inlet cavity 211, a second air outlet hole 42 communicated with the air outlet cavity 221, a second fuel gas inlet hole 43 communicated with the fuel gas inlet cavity 231 and a second fuel gas outlet hole 44 communicated with the fuel gas sides of the single cells.

[0032] Exemplarily, in the embodiment of the utility model, first gas outlet hole 31 is set up on single cell 3, and communicates with the gas side of single cell. The gas side of single cell 3 is connected with first gas inlet hole 232 and first gas outlet hole 31 by gas passage 33, and the air side of single cell 3 is connected with first air inlet hole 212 and first air outlet hole 222 by air passage 32. First gas outlet hole 31 is set up on one side of single cell 3, and is strip hole, in order to improve the stability of single cell 3, support partition 5 is arranged in the middle of strip hole, when the uppermost single cell 3 in groove type support 2 is installed, in order to prevent support partition 5 from interfering with second gas outlet hole 44, recess 6 matched with strip hole is set up in the bottom of top plate 4. External gas pipeline is connected with second gas inlet hole 43 on top plate 4, and external air pipeline is connected with second air inlet hole 41 on top plate 4. Gas enters gas inlet cavity 231 through second gas inlet hole 43, then enters gas passage 33 of single cell 3 through first gas inlet hole 232 to participate in reaction, and flows out from first gas outlet hole 31 after reaction, and is led to outside through second gas outlet hole 44. Air enters air inlet cavity 211 through second air inlet hole 41, then enters air passage 32 of single cell 3 through first air inlet hole 212 to participate in reaction, and flows out from first air outlet hole 222 to air outlet cavity 221 after reaction, and is led to outside through second air outlet hole 42. Multiple single cells 3 can be arranged in groove type support 2, each single cell 3 is connected with first air inlet hole 212, first air outlet hole 222 and first gas inlet hole 232 respectively, when gas is led in from second gas inlet hole 43 on top plate 4, and air is led in from second air inlet hole 41, air and gas can be transported to each single cell 3 to react, each single cell 3 can generate electric energy by reaction, and multiple single cells 3 are connected in series or parallel to improve the power generation of overall electric pile, compared with the prior art, only one single electric pile is used to react, and the sintering size of the reaction area of the battery sheet is small at present, so that the power of single electric pile is small, the embodiment provides reaction gas to multiple single cells 3 by designing air and gas passages, so that multiple single cells 3 react and generate electricity at the same time, and multiple single cells 3 are connected in series and parallel to improve the power generation.

[0033] The utility model discloses a kind of SOFC multi-module stacks provided in an embodiment, multiple horizontally arranged single cells 3 are arranged in the groove support 2 inside, external gas pipeline is connected with the second gas inlet hole 43 on top plate 4, so that gas enters into first gas inlet hole 232 after entering gas inlet cavity 231, and single cell 3 is contacted, external air pipeline is connected with the second air inlet hole 41 on top plate 4, so that air enters into first air inlet hole 212 after entering air inlet cavity 211, and single cell 3 is contacted, by being passed into air and gas to each single cell 3, so that each single cell 3 can carry out independent power generation, and then by being connected in series and parallel to multiple single cells 3, the purpose of increasing the total power generation power of stack is achieved, to effectively solve the problem of lower power generation power in prior art.

[0034] Optionally, single cell 3 includes bipolar plate 34, gas gasket 35, cell sheet 36 and air gasket 37, two bipolar plates 34 are provided and arranged in parallel and spaced apart, and gas gasket 35, cell sheet 36 and air gasket 37 are clamped between the two bipolar plates 34 in sequence.

[0035] Exemplarily, in the utility model embodiment, as shown in Figure 5 Bipolar plate 34 is a good conductor of electricity, and air passage 32 and gas passage 33 are provided thereon. Gas gasket 35 and air gasket 37 are used as sealing gaskets. Since the reaction temperature of solid oxide fuel cell exceeds 600℃, high-temperature-resistant glass sealing is adopted, which has good insulation. Cell sheet 36 is the place of electrochemical reaction. By clamping two bipolar plates 34 between cell sheet 36, the transport efficiency of reaction gas can be improved, thereby improving the power generation efficiency of the stack.

[0036] Optionally, single cell 3 also includes nickel mesh 38, which is clamped between gas gasket 35 and cell sheet 36.

[0037] Exemplarily, in the utility model embodiment, as shown in Figure 5 By providing multi-layer nickel mesh 38, which has the characteristics of high temperature resistance, the contact surface of bipolar plate 34 and cell sheet 36 can be improved, the contact resistance of bipolar plate 34 and cell sheet 36 can be reduced, and the mass transfer of gas is facilitated, thereby further improving the power generation efficiency of the stack.

[0038] Optionally, single cell also includes ceramic sheet 39, which is clamped between cell sheet 36 and air gasket 37.

[0039] Exemplarily, in the utility model embodiment, as shown in Figure 5 By providing ceramic sheet 39, bottom support can be provided for cell sheet 36, so that cell sheet 36 is clamped more stably between two bipolar plates 34, thereby improving the stability of the stack.

[0040] Optionally, the top of the bipolar plate 34 is arranged with an air channel 32, and the bottom of the bipolar plate 34 is arranged with a fuel gas channel 33.

[0041] Exemplarily, in the embodiment of the utility model, as shown in Figure 6 and Figure 7 , by setting the air channel 32 and the fuel gas channel 33 on the two sides of the bipolar plate 34, the air and the fuel gas are completely isolated, and the current path is established between the positive and negative poles in series. The bipolar plate 34 can be appropriately surface treated, and after being plated with nickel on the anode side of the bipolar plate 34, the electric conductivity is good, and the bipolar plate 34 is not easily wetted by the electrolyte, so that the loss of the electrolyte can be avoided. By setting this structure, the stability of the electric pile is further improved.

[0042] Optionally, the surface of the first plate body 21 is provided with a first air inlet hole 212 in communication with an air inlet cavity 211, the surface of the second plate body 22 is provided with a first air outlet hole 222 in communication with an air outlet cavity 221, the surface of the third plate body 23 is provided with a first fuel gas inlet hole 232 in communication with a fuel gas inlet cavity 231, and the single cell 3 is provided with a first fuel gas outlet hole 31. The two ends of the air channel 32 are respectively in communication with the first air inlet hole 212 and the first air outlet hole 222, and the two ends of the fuel gas channel 33 are respectively connected with the first fuel gas inlet hole 232 and the first fuel gas outlet hole 31. The first air inlet hole 212, the first air outlet hole 222 and the first fuel gas inlet hole 232 are all strip-shaped holes and are all provided with a plurality of holes. The plurality of first air inlet holes 212 are arranged in parallel and at intervals, the plurality of first air outlet holes 222 are arranged in parallel and at intervals, and the plurality of first fuel gas inlet holes 232 are arranged in parallel and at intervals.

[0043] Exemplarily, in the embodiment of the utility model, as shown in Figure 1 and Figure 2 , by setting a plurality of rows of first air inlet holes 212, first air outlet holes 222 and first fuel gas inlet holes 232, the first air inlet holes 212, the first air outlet holes 222 and the first fuel gas inlet holes 232 can correspond to a plurality of single cells 3. Each row of first air inlet holes 212 and first air outlet holes 222 can provide an air flow path for the single cell 3, and each row of first fuel gas inlet holes 232 can provide a fuel gas flow path for the single cell 3. In this way, each row of first air inlet holes 212, first air outlet holes 222 and first fuel gas inlet holes 232 corresponds to a single cell 3. This structure makes the air and fuel gas flow paths relatively simple, and there is no need to additionally connect pipes to provide reaction gas for the plurality of single cells 3. In this way, the simplicity of the electric pile is improved.

[0044] Optionally, the side face of the first plate body 21 and the second plate body 22 close to each other is provided with a mounting protrusion 24, and the mounting protrusion 24 is provided with a plurality of mounting protrusions 24, which are uniformly and spacedly arranged in the vertical direction.

[0045] Exemplarily, in the embodiment of the utility model, as shown in Figure 2 The mounting protrusion 24 can provide stable bottom support for the single battery, and a buckle device can be additionally arranged to fix the single battery 3 on the mounting protrusion 24, so that the single battery 3 is fixed, and through the structure, the single battery 3 and the groove-shaped support 3 can be fixed through simple operation, thereby improving the operation convenience of the electric pile.

[0046] Optionally, the groove-shaped support 2 is provided with two, the two groove-shaped supports 2 constitute a groove-shaped support group, the two groove-shaped supports 2 are arranged side by side, and the two groove-shaped supports 2 share a first plate body 21.

[0047] Exemplarily, in the embodiment of the utility model, as shown in Figure 1 And Figure 2 By arranging two groove-shaped supports 2, the number of single batteries 3 that can be arranged in the electric pile is increased, a plurality of single batteries 3 can be arranged in each groove-shaped support 2, and the two groove-shaped supports 2 can share a first plate body 21, the first air inlets 212 are arranged on both sides of the first plate body 21, after the air enters the air inlet cavity 211, the air can enter the single batteries 3 in the two groove-shaped supports 2 through the first air inlets 212 on both sides of the first plate body 21 to react, thereby saving the internal space of the electric pile and improving the space utilization.

[0048] Optionally, the groove-shaped support group is provided with two, the two groove-shaped support groups are arranged opposite to each other, and the two groove-shaped support groups share a third plate body 23.

[0049] Exemplarily, in the embodiment of the utility model, as shown in Figure 1 And Figure 2 By arranging the two groove-shaped support groups opposite to each other, the four groove-shaped supports 2 can be arranged next to each other, the two groove-shaped supports 2 arranged side by side share the first plate body 21, the two groove-shaped supports 2 arranged opposite to each other share the third plate body 23, the first gas inlets 232 are arranged on both sides of the third plate body 23, after the gas enters the gas inlet cavity 231, the gas can enter the single batteries 3 in the two groove-shaped supports 2 arranged opposite to each other through the first gas inlets 232 on both sides of the third plate body 23 to react, thereby further saving the internal space of the electric pile and further improving the space utilization.

[0050] Optionally, a cleaning port 223 is arranged on the side of the second plate body 22 away from the first plate body 21, a cleaning plate 224 is arranged on the cleaning port 223, and the cleaning plate 224 is detachably connected with the second plate body 22.

[0051] Exemplarily, in the embodiment of the utility model, as shown in Figure 2As shown, since the two groove-shaped support groups are connected together after being oppositely arranged, the air outlet cavities 221 of the two oppositely arranged groove-shaped supports 2 are also connected together, and the length of the second plate body 22 is too long, so that when the battery is used for a period of time and a certain amount of impurities is generated inside, the inside of the second plate body 22 needs to be cleaned, and the cleaning port 223 is arranged on the second plate body 22, so that the air outlet cavity 221 can be conveniently cleaned, and the cleaning plate 224 can be conveniently arranged to block the cleaning port 223, so as to conveniently switch the working state and the cleaning state, and further improve the operation convenience of the battery.

[0052] Unless otherwise defined, technical terms or scientific terms used herein shall have the ordinary meaning commonly understood by one of ordinary skill in the art to which the present application belongs. The terms "first", "second", and similar terms used in the description and claims of the present application do not necessarily mean any order, number, or importance, but are only used to distinguish different components. Similarly, the terms "one" or "a" or similar terms do not mean a quantity limitation, but mean that at least one exists. The terms "include" or "contain" or similar terms mean that the elements or objects appearing before the terms "include" or "contain" cover the elements or objects listed after the terms "include" or "contain" and their equivalents, and do not exclude other elements or objects. The terms "connect" or "connected" or similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms "up", "down", "left", "right", and the like are only used to represent relative positional relationships, and when the absolute positions of the described objects change, the relative positional relationships may also change accordingly.

[0053] The above is only an optional embodiment of the present application, and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A SOFC multi-module stack, characterized by, The application relates to a single-cell fuel cell, which comprises a bottom plate (1), a groove-shaped support (2), single cells (3) and a top plate (4). The groove-shaped support (2) is arranged on the bottom plate (1), and comprises a first plate body (21), a second plate body (22) and a third plate body (23), wherein the first plate body (21), the second plate body (22) and the third plate body (23) are vertically arranged on the bottom plate (1), the first plate body (21) and the second plate body (22) are arranged in parallel and at intervals, the third plate body (23) is perpendicular to the first plate body (21), an air inlet cavity (211) is formed in the first plate body (21), an air outlet cavity (221) is formed in the second plate body (22), and a fuel gas inlet cavity (231) is formed in the third plate body (23). The single cells (3) are arranged in the groove-shaped support (2) at intervals in the horizontal direction, and have air sides and fuel gas sides, wherein the air sides are communicated with the air inlet cavity (211) and the air outlet cavity (221), and the fuel gas sides are communicated with the fuel gas inlet cavity (231). The top plate (4) is arranged on the top of the groove-shaped support (2), and is provided with a second air inlet hole (41) communicated with the air inlet cavity (211), a second air outlet hole (42) communicated with the air outlet cavity (221), a second fuel gas inlet hole (43) communicated with the fuel gas inlet cavity (231) and a second fuel gas outlet hole (44) communicated with the fuel gas sides of the single cells. The single cell (3) comprises bipolar plates (34), fuel gas gaskets (35), cell sheets (36) and air gaskets (37), wherein the bipolar plates (34) are arranged in parallel at intervals, and the fuel gas gaskets (35), the cell sheets (36) and the air gaskets (37) are sequentially clamped between the two bipolar plates (34).

2. A SOFC multi-module stack according to claim 1, wherein The single cell (3) further comprises a nickel mesh (38) clamped between the fuel gas gasket (35) and the cell sheet (36).

3. A SOFC multi-module stack according to claim 2, wherein, The single cell further comprises a ceramic sheet (39) clamped between the cell sheet (36) and the air gasket (37).

4. A SOFC multi-module stack according to claim 2, wherein, Air channels (32) are arranged on the top of the bipolar plate (34) in the transverse direction, and fuel gas channels (33) are arranged on the bottom of the bipolar plate (34) in the longitudinal direction.

5. A SOFC multi-module stack according to claim 2, wherein, ​ 6. A SOFC multi-module stack according to claim 5, wherein, The first plate body (21) is provided with a first air inlet hole (212) communicating with the air inlet cavity (211) on the surface, the second plate body (22) is provided with a first air outlet hole (222) communicating with the air outlet cavity (221) on the surface, the third plate body (23) is provided with a first gas inlet hole (232) communicating with the gas inlet cavity (231) on the surface, the single cell (3) is provided with a first gas outlet hole (31), two ends of the air channel (32) are communicated with the first air inlet hole (212) and the first air outlet hole (222) respectively, two ends of the gas channel (33) are connected with the first gas inlet hole (232) and the first gas outlet hole (31) respectively, the first air inlet hole (212), the first air outlet hole (222) and the first gas inlet hole (232) are all strip-shaped holes and are provided with a plurality of holes, a plurality of the first air inlet holes (212) are arranged in parallel and at intervals, a plurality of the first air outlet holes (222) are arranged in parallel and at intervals, and a plurality of the first gas inlet holes (232) are arranged in parallel and at intervals.

7. A SOFC multi-module stack according to claim 1, wherein The first plate body (21) and the second plate body (22) are provided with a mounting protrusion (24) on the side close to each other, the mounting protrusion (24) is provided with a plurality of mounting protrusions (24), and a plurality of mounting protrusions (24) are arranged uniformly in the vertical direction.

8. The SOFC multi-module stack of claim 1 wherein, The groove type support (2) is provided with two groove type supports (2), the two groove type supports (2) constitute a groove type support group, the two groove type supports (2) are arranged side by side, and the two groove type supports (2) share one first plate body (21).

9. A SOFC multi-module stack according to claim 7, wherein, The groove type support group is provided with two groove type support groups, the two groove type support groups are arranged oppositely, and the two groove type support groups share one third plate body (23).

10. The SOFC multi-module stack of claim 1 wherein, The second plate body (22) is provided with a cleaning port (223) on the side away from the first plate body (21), the cleaning port (223) is provided with a cleaning plate (224) on the top, and the cleaning plate (224) is detachably connected with the second plate body (22).

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