CN114069009B

CN114069009B - Pile power generation module

Info

Publication number: CN114069009B
Application number: CN202010768863.9A
Authority: CN
Inventors: 王翰林; 由晓彬; 李初福; 邱严; 龚思琦; 张学威; 刘智恩; 姜礼龙
Original assignee: China Energy Investment Corp Ltd; National Institute of Clean and Low Carbon Energy; New Energy Co Ltd of China Energy Investment Corp Ltd
Current assignee: China Energy Investment Corp Ltd; National Institute of Clean and Low Carbon Energy; New Energy Co Ltd of China Energy Investment Corp Ltd
Priority date: 2020-08-03
Filing date: 2020-08-03
Publication date: 2023-07-11
Anticipated expiration: 2040-08-03
Also published as: CN114069009A

Abstract

The invention discloses a pile power generation module, which comprises a heating insulation box (100) and a module installation box (200), wherein the module installation box is embedded in the heating insulation box and comprises a built-in pile module (300) and a front air inlet cavity (201) and a rear air outlet cavity (202) which are formed on two sides in a separated mode, and the pile module comprises a plurality of pile units (301) which are stacked in sequence along a box body height direction (H) and are connected in series. The electric pile power generation module adopts a nested square box body structure, electric pile units adopt a linear stacking mode, a heat exchanger can be integrated in a heating insulation box, the module structure is simple, the layout is compact, the pipeline wiring is standard, the interface is friendly, all high-temperature equipment is in a starting heating and insulation range, the heat exchanger and the internal and external double heating of the electric pile can be formed, the thermal efficiency of the module is improved, and different numbers of electric pile units can be freely connected into circuits to realize power generation modes with different powers and switching of the power generation modes.

Description

Pile power generation module

Technical Field

The present invention belongs to the field of fuel cell technology.

Background

For an air SOFC electric pile integrated power generation system module, in particular to a large power generation system integrated module, a plurality of electric pile units are generally required to be integrated, the structure is complex, the module volume is huge, the electric pile module structure is mainly in annular arrangement, and the air flow direction is 'outside in and inside out'. The fuel reformer and the anode heat exchanger are arranged in the annular cavity, and the outlet side of the electric pile. The cathode heat exchanger is also cylindrical and is arranged at the outermost side of the module. However, for small systems or pile power generation module systems with large volumetric power density, the number of pile units is small, the space inside the module is limited, and the integrated space inside the module may not be provided for equipment such as a heat exchanger.

In addition, the flow rate of the anode side is smaller because the natural gas fuel of the anode has higher heat value; for the synthetic gas fuel, the heat value is lower, and the anode side flow is larger under the condition of the same generating power. At the same time, because the syngas fuel lacks a reforming endothermic process, there is less heat absorption and thus a relatively large amount of cathode cooling air may be required. For the synthetic gas fuel, if the electric pile module adopts annular arrangement, the specific surface of the external heat exchanger is larger, the heat dissipation is more serious, and the heat efficiency is reduced; the inner side heat exchanger has a compact structure and a relatively small flow area, and the heat exchange efficiency can be influenced; in addition, for larger flows of air flow, increased back pressure may result, and overall integration is more difficult.

The rated operating temperature range of the solid oxide fuel cell is 700-800 ℃, and the temperature is high, so that the reasonable utilization of heat and the heat balance condition of the power generation module are important for the thermal efficiency and the electrical efficiency of the system. That is, the residual heat of the outlet gases of the cathode and the anode and the heat released by the electrochemical reaction are fully utilized, and a heat exchanger is generally adopted to heat the inlet-side gas by using part of the heat so as to maintain the heat balance. The traditional shell-and-tube or plate heat exchanger is adopted, so that the heat exchange efficiency is limited, the volume is large, the waste heat of the outlet gas cannot be fully utilized to heat the inlet gas, and the structural integration of the system is not facilitated.

In a large SOFC power generation system, a power generation module consists of a plurality of single stacks, and the single stacks adopt a circuit series connection and parallel connection mode. The operation parameters and fault monitoring of the single stack are important for the operation and fault diagnosis and maintenance of the system. Due to mechanical reasons or gas path sealing requirements, the arrangement difficulty of a single electric pile monitoring system is extremely high, and after a plurality of electric piles are connected in series to form a pile tower, the pile tower is monitored in an integral monitoring mode and an electricity taking mode, and the performance monitoring means of each electric pile in the tower are lacked. In addition, the whole pile electricity taking has limited power generation voltage regulating means for the system.

Disclosure of Invention

Aiming at the defects or shortcomings in the prior art, the invention provides a pile power generation module which is simple in structure, compact in layout, reasonable in distribution of a gas distribution system, high in thermal efficiency and capable of achieving a perfect pile operation parameter monitoring system and a flexible power taking system.

In order to achieve the above object, the present invention provides a stack power generation module including:

heating the incubator; and

the module mounting box is embedded in the heating insulation box and comprises a built-in electric pile module and a front air inlet cavity and a rear air outlet cavity which are formed on two sides of the electric pile module in a separated mode, and the electric pile module comprises a plurality of electric pile units which are stacked in sequence along the height direction of the box and are connected in series;

wherein the heating insulation box and the module mounting box are square boxes; the pile power generation module comprises a cathode gas pipeline system and an anode gas pipeline system, wherein the cathode gas pipeline system comprises a cathode heat exchanger, the anode gas pipeline system comprises an anode heat exchanger, and the cathode heat exchanger and the anode heat exchanger are positioned in the heating insulation box;

wherein the cathode gas piping system and the anode gas piping system each include:

an inlet section transversely extending into the box body of the heating insulation box from the top of the side wall of the heating insulation box;

sidewall segments extending downwardly along left and right sidewalls of the module mounting case; and

an inward extension extending from a bottom wall of the module mounting case into the case;

the inward extending section of the anode gas pipeline system is positioned at the front side of the pile module and is connected with each pile unit in parallel in a bypass mode, and each pile unit is respectively provided with a front pile tower air inlet and a rear pile tower air outlet.

In some embodiments, the cathode heat exchanger and the anode heat exchanger are plate-fin heat exchangers.

In some embodiments, the cathode heat exchanger and the anode heat exchanger are cubic block-shaped and are disposed outside the left and right sidewalls of the module mounting case, respectively.

In some embodiments, the sidewall tube segment is formed as a sinuously winding coil.

In some embodiments, the stack power module includes a temperature and pressure monitoring bar extending from a top of the module mounting case.

In some embodiments, a gas block is provided within the module mounting case for separating the front side air inlet chamber and the rear side air outlet chamber back and forth.

In some embodiments, each pile unit is respectively extended with a power taking lug, and each power taking lug is respectively extended with a voltage monitoring power taking pole.

In some embodiments, the pile power generation module comprises a screw nut assembly vertically penetrating and fastening each pile unit, and the screw nut assembly is electrically connected with each power taking lug.

In the pile power generation module, the heating insulation box and the module installation box are adopted to form a nested box body, pile units are sequentially stacked linearly along the height direction of the box body, and a front side air inlet cavity and a rear side air outlet cavity are formed in the module installation box in a separated mode. All high-temperature equipment such as a galvanic pile unit and a cathode-anode heat exchanger are in the starting heating and heat preservation range, so that a heat isolation system is formed, and the heating and temperature rising efficiency is improved.

Additional features and advantages of the invention will be set forth in the detailed description which follows.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate the invention and together with the description serve to explain, without limitation, the invention. In the drawings:

fig. 1 is a perspective view of a stack power generation module according to an embodiment of the present invention;

FIGS. 2 and 3 are perspective views of the stack power generation module of FIG. 1 from different view angles with the heating incubator removed, showing the module mounting box, cathode gas piping, anode gas piping, etc. within the heating incubator;

fig. 4 to 7 are top, front, side and bottom views, respectively, of the stack power module of fig. 2 and 3, with the heating incubator removed;

FIG. 8 is a perspective view of the stack power module of FIG. 1 with the front and rear walls of the heating incubator, module mounting box removed;

FIG. 9 is a front view of FIG. 8;

FIG. 10 is a cross-sectional view taken along section C-C of FIG. 9; and

fig. 11 is a perspective view of the stack module in the module mounting case of fig. 8 and 9.

Reference numerals illustrate:

100. heating insulation can 200 module mounting box

300. Pile module 301 pile unit

3011. Front side tower stack air inlet 3012 electricity taking lug

201. Front air inlet chamber 202 and rear air outlet chamber

203. Bottom wall air inlet 204 bottom wall air outlet

205. Bottom wall gas inlet 206 bottom wall gas outlet

1. Cathode heat exchanger 2 anode heat exchanger

3. Inlet section of base 4

5. Inner extension of side wall section 6

7. Temperature and pressure monitoring rod 8 gas block

9. 10 screw nut assemblies of pole are got in voltage monitoring

11. Tensioning assembly

A1 Anode gas inlet A2 anode gas outlet

B1 Cathode air inlet B2 cathode air outlet

H box body height direction

Detailed Description

The following describes specific embodiments of the present invention in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the invention, are not intended to limit the invention.

It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.

In the present invention, unless otherwise indicated, terms of orientation such as "upper, lower, top, bottom" are used generally with respect to the orientation shown in the drawings or with respect to the positional relationship of the various components with respect to one another in the vertical, vertical or gravitational directions. The azimuth term "inside and outside" is a term describing the mutual positional relationship of each component with respect to the inner cavity of the case and the outside of the case. "front, rear" and "case height direction" are indicated by arrows referring to the drawings.

The invention will be described in detail below with reference to the drawings in connection with embodiments.

The invention provides a pile power generation module with a brand new structural design. Referring to the embodiment of fig. 1 to 11, the stack power generation module is box-shaped and includes:

an outside heating incubator 100; and

the module mounting case 200 of the inside, see fig. 2 and 3, the module mounting case 200 is embedded in the heating insulation case 100 and includes a built-in electric pile module 300 and a front side air inlet chamber 201 and a rear side air outlet chamber 202 formed separately at both sides of the electric pile module 300, see fig. 9 and 10, and the electric pile module 300 includes a plurality of electric pile units 301 stacked in sequence along a case height direction H and connected in series with each other, see fig. 11.

The invention aims to solve the structural problem of integrating a small-sized synthetic gas power generation system module by utilizing a plurality of small-sized air-sealed SOFC stacks. Because the specific surface area of the small-sized system is large, the heat balance and the process simplification are required to be fully considered from the system level, the heat radiating area and the volume of the module are required to be controlled, a heat isolation system is formed as much as possible, and the integration performance is fully improved under the condition of high energy efficiency. Fully considers the process cost and the efficiency of the heat exchanger and adapts to the working condition of the synthetic gas. The voltage monitoring system is arranged, so that the operation performance of each electric pile in the pile tower can be conveniently monitored, and fault diagnosis is convenient.

In this embodiment, a structural design form of a multi-stack power generation module system integrating 5 kW-level IGFC synthesis gas is proposed for a small-sized air SOFC stack. The pile module 300 adopts a pile tower structure in which a plurality of pile units 301 are stacked in turn, and in this embodiment, four pile units 301 are connected in series to form 5kW, but the pile module is not limited thereto. Further in combination with the vertical gas block 8, is arranged in the housing chamber of the module mounting case 200, dividing the housing chamber into a front side air inlet chamber 201 and a rear side air outlet chamber 202, i.e. an air inlet side and an air outlet side, thereby forming a square cathode gas distribution system, as shown in fig. 8.

As shown in the figure, the outer surface area of the box body module of the electric pile power generation module is minimized, the heat loss is small, the internal structure is compact, the pipeline wiring is regular and orderly, the electric pile module 300 is arranged in the heating insulation box 100, all high-temperature components can be thermally isolated, internal and external simultaneous heating is formed in the starting process, the heat loss is reduced, the heat efficiency is improved, and the pressure of a heating system in the module in the starting process is reduced. Moreover, the galvanic pile modules 300 are formed by stacking and connecting a plurality of galvanic pile units 301 in series in a linear manner along the height direction H of the box body, so that the connecting structure is simple, the integration is convenient, and the process difficulty and the cost are greatly reduced.

In the present embodiment, the heating and insulating case 100 and the module mounting case 200 are square cases. Of course, the box shape is not limited to the illustrated rectangular box. Meanwhile, the pile power generation module comprises a cathode gas pipeline system and an anode gas pipeline system, wherein the cathode gas pipeline system comprises a cathode heat exchanger 1 arranged between a cathode gas inlet pipeline and a cathode gas outlet pipeline, the anode gas pipeline system comprises an anode heat exchanger 2 arranged between an anode gas inlet pipeline and an anode gas outlet pipeline, and the cathode heat exchanger 1 and the anode heat exchanger 2 are positioned in the heating insulation box 100.

Thus, the cathode and anode heat exchangers are arranged inside the heating insulation box 100 like the galvanic pile module 300, so that internal and external simultaneous heating can be formed, and heat loss is reduced. On the basis, aiming at the requirements of high flow and low back pressure of a synthesis gas system, the plate-fin heat exchanger with compact structure, high heat exchange strength and mature process can be adopted, so that heat dissipation is reduced, and the thermal efficiency of the module is improved. Namely, the cathode heat exchanger 1 and the anode heat exchanger 2 adopt plate-fin heat exchangers with high heat exchange strength and large flow area, and can be conveniently integrated in the heating insulation box 100. Specifically, as shown in fig. 2 and 3, the cathode heat exchanger 1 and the anode heat exchanger 2 are in the shape of cubic blocks and are respectively arranged outside the left and right side walls of the module mounting case 200, so that the case internal structure arrangement is reasonable and compact.

In comparison, the existing pile power generation modules mostly adopt a cylindrical shape, for example, in US patent 009190673B2, an autonomously produced air-open SOFC pile integrated power generation system module is disclosed. The modules are generally in a cylindrical arrangement, and the pile units are separated by insulating blocks. The system module integrates cylindrical cathode and anode heat exchangers, and has compact structure. For the natural gas system integrating reforming, starting, cathode heat exchange and other functions, the heat can be fully utilized. In the module, air and fuel gas enter the module from the centers of the top end and the low end of the module respectively, flow into a hot area of a galvanic pile after exchanging heat along heat exchanger channels arranged in the center and the outer ring of the module, flow through the hot area, and return to the heat exchanger channels through a gas collecting structure to be discharged. Because the pile itself adopts an air open design, no air pipeline exists in the hot zone. The air flows from the outside of the circular through to the inside of the circular through. The electric pile is longitudinally stacked to form an electric pile module, a circuit adopts an upper-lower serial connection mode, and the upper part and the lower part of a single electric pile unit are provided with electricity taking structures.

The cylindrical modules are arranged in an annular mode, and the matched cathode-anode heat exchanger is cylindrical in view of the characteristics of relatively large flow rate of the cathode and anode of the synthesis gas, small size, large specific surface area and the like. The specific surface area of the outer annular heat exchanger is large, and the heat dissipation loss is large. The cylindrical heat exchanger adopts a corrugated plate structure, and is a traditional plate type heat exchanger. The heat exchange strength of the synthetic gas is high, the gas flow is high, and the back pressure control requirement is high. Therefore, the heat exchange area required by the cylindrical traditional plate type heat exchanger is larger, and auxiliary heat exchange equipment such as a radiation heat exchanger and the like can be required to be utilized, so that the heat exchanger integration is not facilitated. If the square plate-fin heat exchanger with larger heat exchange intensity is arranged outside the module, heat loss is larger, the system may need equipment for supplementing the radiation heat exchanger, and the number of the equipment is large and complex, so that the system integration is not facilitated. Moreover, the high-temperature air inlet of the cylindrical heat exchanger is positioned on the side wall surface, is of a non-traditional porous structure, is complex in structure and high in manufacturing cost, the corrugated plate welding process is difficult, the process cost is high, the cylindrical heat exchanger is unstable, and leakage and internal short circuit of the cathode air heat exchanger are easy to form under the condition of thermal stress.

Therefore, the plate-fin heat exchanger with smaller volume, larger heat exchange intensity and larger circulation and heat exchange area is adopted in the electric pile power generation module as far as possible, the heat exchanger is integrated in the heat preservation interior of the module, and all high-temperature equipment such as the electric pile, the cathode-anode heat exchanger and the like are in the starting heating and heat preservation range, so that a heat isolation system is formed. In the process of starting heating, the electric pile module and the heater can be heated together in an external heating mode, and the overall heating efficiency of the system can be improved. In addition, the electric pile units 301 in the electric pile module 300 are arranged linearly, the cathode gas circuit system of the module adopts square arrangement, and the inlet and outlet forms of the cathode and the anode are regular, so that the integration of a conventional heat exchanger is facilitated.

Thus, in the embodiment shown in the figure, the integrated design suitable for the 5 kW-level small-sized synthesis gas SOFC power generation module is established, and the process difficulty and the cost are greatly reduced. The electric pile module 300 adopts vertical linear pile tower arrangement, the gas path system is square, the gas inlet and outlet forms are regular, the interface is friendly, and the heat exchanger is convenient to integrate. And aiming at the requirements of high flow and low back pressure of a synthesis gas system, a plate-fin heat exchanger with compact structure, high heat exchange strength and mature process can be adopted, so that heat dissipation is reduced, and the thermal efficiency of a module is improved. All high-temperature equipment such as a heat exchanger of the module and the like are integrated in heat preservation and starting heating equipment to form a heat isolation system. In the starting temperature rising process, the heat exchanger can heat the inside and the outside simultaneously, so that the overall heating efficiency can be improved, and the pressure of a heating system in a module in the starting process is reduced.

More specifically, returning to the present embodiment, as an example, in a square case, the pipe wirings of the cathode gas pipe system and the anode gas pipe system are provided on the left and right sides of the case. The cathode gas pipeline system comprises a cathode gas inlet pipeline with the outer end being a cathode air inlet B1 and a cathode gas outlet pipeline with the outer end being a cathode air outlet B2, the anode gas pipeline system comprises an anode gas inlet pipeline with the outer end being an anode gas inlet A1 and an anode gas outlet pipeline with the outer end being an anode gas outlet A2, and the cathode gas inlet pipeline, the cathode gas outlet pipeline, the anode gas inlet pipeline and the anode gas outlet pipeline respectively comprise an inlet section 4, a side wall section 5 and an inner extension section 6. The inlet section 4 extends into the box body from the top of the side wall of the heating insulation box 100 transversely, namely horizontally along the two sides of the width direction of the box body shown in fig. 5; the side wall segments 5 extend downwardly along the left and right side walls of the module mounting case 200 as shown in fig. 6; the inner extension 6 extends into the case from the bottom wall of the module mounting case 200.

As shown in fig. 8 and 10, the respective inner extensions 6 of the cathode inlet pipe and the cathode outlet pipe are respectively connected to the bottom wall air inlet 203 and the bottom wall air outlet 204 of the module mounting box 200, but the inner extensions 6 are not required to completely invade the cavity of the mounting box, so that air can be introduced into the front side air inlet cavity 201 or can be discharged from the rear side air outlet cavity 202; referring to fig. 9 and 11, each of the stack units 301 is provided with a front side stack air inlet 3011 and a rear side stack air outlet (not shown) located at the rear side of the front side stack air inlet 3011 to communicate with the bottom wall air inlet 203, the stack unit 301, and the bottom wall air outlet 204, respectively.

As shown in fig. 5 and 8, the respective inward extensions 6 of the anode inlet and outlet gas pipes extend into the mounting box cavity through the bottom wall gas inlet 205 and bottom wall gas outlet 206 of the module mounting box 200, respectively. In the present embodiment, the inward extension 6 of the anode inlet pipe and the anode outlet pipe each extend into the front side air inlet chamber 201 and vertically upward to the front side of each cell unit 301, and then sequentially bypass each cell unit 301 in parallel through a plurality of bypass pipes.

Wherein, the pipelines of the cathode gas pipeline system and the anode gas pipeline system extend into the box body cavity from the bottom wall of the module mounting box 200, and a base 3 is further arranged between the bottom wall of the module mounting box 200 and the bottom wall of the heating insulation box 100 to support the module mounting box 200 and form a bottom wall interval space so that the pipelines are bent and extend into the box body, as shown in fig. 5 and 7. As shown in fig. 2, 3 and 6, at least part of the side wall sections 5 of the cathode gas piping and the anode gas piping may also be formed in a sinuously winding coil shape to enhance the heat exchange effect.

Fig. 8 and 9 are perspective and front views of the stack power module shown in fig. 1, with the front and rear walls of the heating insulation can and the module mounting case removed, and the stack module 300 in the module mounting case 200 can be clearly observed. As can be seen from fig. 8 and 9, the stack power module may further include a temperature and pressure monitoring bar 7 extending from the top of the module mounting case 200 and/or a voltage monitoring power take-off bar 9 extending forward for ease of monitoring.

Fig. 11 is a perspective view of the stack module in the module mounting case of fig. 8 and 9. In order to realize reliable and stable vertical linear pile towers among the plurality of pile units 301, the pile power generation module comprises a screw nut assembly 10 vertically penetrating and connecting to fasten each pile unit 301, wherein each pile unit 301 is respectively extended with a power taking lug 3012, each power taking lug 3012 is respectively extended with a voltage monitoring power taking pole 9, and the screw nut assembly 10 is electrically connected and vertically fixedly connected with each power taking lug 3012, as shown in fig. 9. For tightness, a tensioning assembly 11, such as a compression spring or the like, may also be provided.

In this way, the pile unit 301 is provided with a power taking lug structure, and is connected by a screw, and the connection part is provided with a voltage monitoring power taking pole, so that fault diagnosis is facilitated, and a multi-power generation mode can be realized. The module external interface is simple and user-friendly, and can be applied to office electricity consumption and the like in places of experimental workshops.

In the conventional pile power generation module with the annular structure, the pile module 300 is provided with a general up-down power taking structure, so that the power generation condition of the pile in the middle layer of the pile tower is difficult to master, and the fault diagnosis and equipment operation monitoring after integration are not facilitated. The single stack tower cannot monitor the operation condition of the intermediate electric stack, and fault diagnosis during operation is inconvenient. In the present invention, each layer of the pile unit 301 is added with a voltage monitoring system, so that the operation state of the pile module 300 can be monitored in real time during the operation process. All the galvanic pile units 301 are provided with a voltage monitoring mechanism, so that operation monitoring and fault diagnosis are facilitated. Meanwhile, different numbers of pile units 301 can be freely connected into a circuit, and switching of different power generation modes can be realized.

In summary, in the pile power generation module of the present invention, a plurality of pile units 301, for example, 1 kW-class pile units 301, are formed into a vertically arranged Shan Dui tower structure, so as to form a pile module 300, and the gas supply systems between the pile units 301 are connected in parallel in a tree form by using pipelines and a gas distribution structure. The electric pile module 300 is placed in a square box-shaped module mounting box 200, the box cavity of the module mounting box 200 is divided into a front part and a rear part by utilizing the electric pile module 300 and a gas stop block 8, one side is an air inlet, the other side is an air outlet, a square gas distribution mode is formed, and regular air and gas inlets can be formed in the bottom wall of the module mounting box 200. The cathode and anode heat exchangers can be placed on the left and right sides of the module mounting case 200, and square plate-fin heat exchangers are adopted, and the pipeline can be subjected to coil design to increase heat exchange, so that a heat isolation system of a pile, the heat exchangers and an air supply system is formed.

The whole power generation module system is internally arranged in an external heating insulation box 100, and the heating insulation box 100 can maintain the heat balance of the system under the operating condition of a pile power generation module; under the condition of starting and stopping, the external heating function can provide auxiliary heat, so that the internal and external double heating of the heat exchanger and the electric pile is formed, and the heat efficiency of the module in the dynamic process is improved. In addition, a single pile unit 301 is provided with a power taking lug structure, each pile is electrically connected by a screw and a nut, and a voltage monitoring power taking pole 9 is arranged at each power taking lug 3012, so that a fault monitoring system is formed, and power generation modes with different powers can be formed.

The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present invention within the scope of the technical concept of the present invention, for example, if the stack power generation module is systematically enlarged, more stack units 301 and gas stoppers 8 may be linearly arranged according to the vertical direction and placed in the square module mounting box 200, which are all within the scope of the present invention.

In addition, the specific features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described further.

Moreover, any combination of the various embodiments of the invention can be made without departing from the spirit of the invention, which should also be considered as disclosed herein.

Claims

1. A pile power generation module, characterized in that the pile power generation module comprises:

a heating incubator (100); and

the module mounting box (200) is embedded in the heating insulation box (100) and comprises a built-in electric pile module (300) and a front air inlet cavity (201) and a rear air outlet cavity (202) which are formed on two sides of the electric pile module (300) in a separated mode, wherein the electric pile module (300) comprises a plurality of electric pile units (301) which are stacked in sequence along a box body height direction (H) and are connected in series with each other;

the heating insulation box (100) and the module mounting box (200) are square boxes, the electric pile power generation module comprises a cathode gas pipeline system and an anode gas pipeline system, the cathode gas pipeline system comprises a cathode heat exchanger (1), the anode gas pipeline system comprises an anode heat exchanger (2), and the cathode heat exchanger (1) and the anode heat exchanger (2) are positioned in the heating insulation box (100);

an inlet section (4) transversely extending into the box body of the heating insulation box (100) from the top of the side wall of the heating insulation box (100);

sidewall segments (5) extending downward along left and right sidewalls of the module mounting case (200); and

an inward extension (6) extending from a bottom wall of the module mounting case (200) into the case;

the inward extension (6) of the anode gas pipeline system is positioned at the front side of the electric pile module (300) and is sequentially connected to each electric pile unit (301) in parallel, and each electric pile unit (301) is respectively provided with a front side pile tower air inlet (3011) and a rear side pile tower air outlet.

2. Pile power generation module according to claim 1, characterized in that the cathode heat exchanger (1) and the anode heat exchanger (2) are plate-fin heat exchangers.

3. The stack power generation module according to claim 1, wherein the cathode heat exchanger (1) and the anode heat exchanger (2) are cubic block-shaped and are disposed outside the left and right side walls of the module mounting case (200), respectively.

4. Pile power generation module according to claim 1, characterized in that the side wall sections (5) are formed as sinuously winding coils.

5. The electric pile power generation module according to claim 1, characterized in that it comprises a temperature pressure monitoring bar (7) protruding from the top of the module mounting box (200).

6. Pile power generation module according to claim 1, characterized in that a gas block (8) is provided in the module mounting box (200) for separating the front side air inlet chamber (201) and the rear side air outlet chamber (202) back and forth.

7. Pile power generation module according to any of claims 1-6, characterized in that each pile unit (301) is provided with a power take-off lug (3012) extending from each pile unit, and each power take-off lug (3012) is provided with a voltage monitoring power take-off pole (9) extending from each pile unit.

8. The electric pile power generation module according to claim 7, characterized in that it comprises a screw-nut assembly (10) for vertically threading and fastening each electric pile unit (301), said screw-nut assembly (10) being electrically connected to each electricity-extracting lug (3012).