CN114069009A

CN114069009A - Pile power generation module

Info

Publication number: CN114069009A
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; Shenhua New Energy Co Ltd
Current assignee: China Energy Investment Corp Ltd; National Institute of Clean and Low Carbon Energy; Shenhua New Energy Co Ltd
Priority date: 2020-08-03
Filing date: 2020-08-03
Publication date: 2022-02-18
Anticipated expiration: 2040-08-03
Also published as: CN114069009B

Abstract

The invention discloses a galvanic 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 galvanic pile module (300) and a front side air inlet cavity (201) and a rear side air outlet cavity (202) which are formed on two sides in a separating mode, and the galvanic pile module comprises a plurality of galvanic pile units (301) which are sequentially stacked along the height direction (H) of a box body and are connected in series. The pile power generation module adopts a nested square box structure, pile units adopt a linear stacking mode, the heat exchanger can be integrated in the heating insulation box, the module structure is simple, the layout is compact, the pipeline routing is standard, the interface is friendly, all high-temperature equipment is in the range of starting heating and heat insulation, the heat exchanger and the pile can be heated internally and externally, the heat efficiency of the module is improved, and different numbers of pile units can be freely connected into a circuit to realize power generation modes with different powers and switching of the power generation modes.

Description

Pile power generation module

Technical Field

The invention belongs to the field of fuel cells.

Background

For a power generation system module integrated by an air SOFC (solid oxide fuel cell) galvanic pile, particularly a large power generation system integrated module, a plurality of galvanic pile units are generally required to be integrated, the structure is complex, the module volume is large, the galvanic pile module structure is mostly arranged in a ring shape, and the air flowing direction is 'outside-in side-out side'. The fuel reformer and the anode heat exchanger are arranged in the ring cavity, and the outlet side of the electric pile is arranged in the ring cavity. The cathode heat exchanger is likewise cylindrical and is arranged on the outermost side of the module. However, for a small-sized system or a pile power generation module system with a large volumetric power density, the number of pile units is small, the internal space of the module is limited, and the internal integrated space may not be provided for equipment such as a heat exchanger.

In addition, the anode side flow is smaller due to the higher heating value of the natural gas fuel at the anode; the heat value of the synthetic gas fuel is lower, and the anode side flow rate is larger under the condition of the same generated power. Also, because syngas fuels lack the endothermic process of reforming and absorb less heat, a relatively large amount of cathode cooling air may be required. For the synthesis gas fuel, if the electric pile module is arranged annularly, the specific surface of the excircle 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 is possibly influenced; in addition, for a larger flow rate of air, the back pressure may be increased, and the difficulty of integral integration is greater.

The rated operation temperature range of the solid oxide fuel cell is 700-800 ℃, and the temperature is higher, so that the reasonable utilization of heat and the heat balance condition of the power generation module are very important for the thermal efficiency and the electric efficiency of the system. That is, the residual heat of the cathode and anode outlet gases and the electrochemical reaction are required to be fully utilized to release heat, and a heat exchanger is usually adopted to heat the inlet side gas so as to maintain the heat balance. Adopt traditional shell and tube type or plate heat exchanger, because its heat exchange efficiency is limited, and the volume is great, unable make full use of export gas waste heat heating inlet gas also do not benefit to system's structural integration.

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 pile are very important for the operation and fault diagnosis and maintenance of the system. Due to the mechanical reason or the requirement of gas circuit sealing, the arrangement difficulty of a single galvanic pile monitoring system is very high, after a plurality of galvanic piles are generally connected in series to form a pile tower, the pile tower is integrally monitored and is monitored in a power taking mode, and the performance monitoring means of the galvanic piles in the tower is lacked. In addition, the whole pile of electricity taking has a limited means for adjusting the generated voltage of 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 heat efficiency, and provided with a perfect pile operation parameter monitoring system and a flexible power taking system.

To achieve the above object, the present invention provides a stack power generation module, comprising:

heating the heat preservation box; and

the module install bin inlays to be located in the heating insulation can and including built-in galvanic pile module and separate form in the front side air inlet chamber and the rear side air outlet chamber of galvanic pile module both sides, the galvanic pile module includes and piles up a plurality of galvanic pile units of just establishing ties each other in proper order along box direction of height.

In some embodiments, the heat and incubator and the module mounting case are square cases.

In some embodiments, the stack power generation module includes a cathode gas piping system including a cathode heat exchanger and an anode gas piping system including an anode heat exchanger, the cathode heat exchanger and the anode heat exchanger being located within the heating incubator.

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 in the shape of a cubic block and are disposed outside of left and right sidewalls of the module mounting case, respectively.

In some embodiments, the cathode gas piping system and the anode gas piping system each comprise:

the inlet section transversely extends into the box body from the top of the side wall of the heating and heat-insulating box;

side wall sections extending downward along left and right side walls of the module mounting case; and

the inner extending section extends into the box body from the bottom wall of the module installation box.

In some embodiments, the sidewall tube segments are formed in a serpentine coil shape.

In some embodiments, the inward extending section of the anode gas piping system is located at a front side of the stack module and is sequentially bypassed in parallel to each of the stack units, and each of the stack units is provided with a front-side stack air inlet and a rear-side stack air outlet, respectively.

In some embodiments, the stack power generation module includes a temperature pressure monitoring rod 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 air inlet chamber and the rear air outlet chamber in a front-to-rear direction.

In some embodiments, each of the electric pile units extends to form an electricity taking lug, and each of the electricity taking lugs extends to form a voltage monitoring electricity taking pole.

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

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

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

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

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

fig. 2 and 3 are perspective views of the cell stack power generation module shown in fig. 1 with the heating and heat-insulating box removed from the surface layer, showing the module installation box, the cathode gas piping system, the anode gas piping system, and the like in the heating and heat-insulating box;

fig. 4 to 7 are a plan view, a front view, a side view and a bottom view of the stack power generation module shown in fig. 2 and 3, respectively, with the heating and heat-insulating box removed;

FIG. 8 is a perspective view of the stack power module of FIG. 1 with the heat insulation cabinet and the front and rear walls of the module mounting case 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 a stack module in the module installation box of fig. 8 and 9.

Description of reference numerals:

100 heating insulation can 200 module installation case

300 electric pile module 301 electric pile unit

3011 electric support lug is got to front side heap tower air inlet 3012

201 front air inlet chamber 202 rear air outlet chamber

203 bottom wall air inlet 204 bottom wall air outlet

205 bottom wall gas inlet and 206 bottom wall gas outlet

1 cathode heat exchanger and 2 anode heat exchanger

3 base 4 inlet section

5 side wall section 6 inner extension section

7 temperature and pressure monitoring rod 8 gas stop

9 voltage monitoring pole taking 10 screw nut assembly

11 tensioning assembly

A1 anode gas inlet A2 anode gas outlet

B1 cathode air Inlet B2 cathode air Outlet

H direction of the box body

Detailed Description

The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.

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

In the present invention, unless specified to the contrary, use of the terms of orientation such as "upper, lower, top, bottom" or the like are generally described with respect to the orientation shown in the drawings or the positional relationship of the components with respect to each other in the vertical, or gravitational direction. The directional words "inside and outside" are words for describing the mutual position relationship of the components in the inner cavity of the box body and the outer part of the box body. The "front, rear" and "box height direction" refer to the arrows in the drawings.

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

The invention provides a galvanic 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:

a heating and insulating box 100 on the outer side; and

referring to fig. 2 and 3, the module mounting case 200 is embedded in the heating and insulating box 100, and includes a built-in stack module 300, and a front air inlet chamber 201 and a rear air outlet chamber 202 formed at both sides of the stack module 300 in a partitioned manner, and referring to fig. 9 and 10, the stack module 300 includes a plurality of stack units 301 stacked in sequence in a height direction H of the box and connected in series with each other, referring to fig. 11.

The invention aims to solve the structural problem of integrating a small-sized synthesis gas power generation system module by utilizing a plurality of small-sized air-sealed SOFC (solid oxide fuel cell) stacks. Because the small-sized system has a large specific surface area, the heat balance and the process simplification need to be fully considered from the system level, so that the heat dissipation area and the volume of the module need to be controlled, a thermally isolated system needs to be formed as much as possible, and the integration performance is fully improved under the condition of high energy efficiency. The process cost and the high efficiency of the heat exchanger are fully considered, and the heat exchanger is suitable for the working condition of the synthesis gas. And a voltage monitoring system is arranged, so that the operation performance of each galvanic pile in the pile tower can be conveniently monitored, and fault diagnosis is facilitated.

In the embodiment, a structural design form of a 5 kW-level IGFC synthetic gas multi-stack power generation module system is integrated for a small-sized air SOFC (solid oxide fuel cell) stack. The stack module 300 has a stack tower structure in which a plurality of stack units 301 are stacked in sequence, and in the present embodiment, four stack units 301 are connected in series to form a 5kW stage, but the present invention is not limited thereto. Further arranged in conjunction with the vertical gas block 8 in the box chamber of the module mounting box 200, the box chamber is divided 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 external 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, the heat isolation of all high-temperature parts can be realized, the internal and external 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 starting process is reduced. Moreover, the stack module 300 is formed by linearly and sequentially stacking and serially connecting the plurality of stack units 301 along the height direction H of the box body, so that the connection 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 box 100 and the module installation case 200 are both square cases. Of course, the shape of the case is not limited to the illustrated rectangular case. Meanwhile, 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 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 located in the heating insulation box 100.

Thus, the cathode and anode heat exchangers are arranged in the heating and insulating box 100 like the galvanic pile module 300, so that the inside and the outside can be heated simultaneously, and the heat loss is reduced. On the basis, 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 the heat dissipation is reduced, and the heat efficiency of the module is improved. That is, 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 and heat-insulating 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 a cube and are respectively disposed outside the left and right sidewalls of the module installation box 200, so that the internal structure of the box body is reasonably and compactly arranged.

Comparatively, the existing stack power generation module mostly adopts a cylindrical shape, for example, in U.S. Pat. No. US009190673B2, an autonomously produced air open SOFC stack integrated power generation system module is disclosed. The modules are arranged in a cylindrical shape, and the electric pile units are separated by a heat insulation block. The system module integrates cylindrical cathode and anode heat exchangers, and has a compact structure. The heat can be fully utilized for a natural gas system integrating the functions of reforming, starting, cathode heat exchange and the like. In the module, air and fuel gas respectively enter the module from the centers of the top end and the lower end of the module, flow into a galvanic pile hot area after exchanging heat along heat exchanger channels arranged at the center and the outer ring of the module, flow through the hot area and then return to the heat exchanger channel through a gas collection structure to be discharged. Since the stack itself is an open air design, there is no air line in the hot zone. Air flows from the outer side of the circular channel to the inner side of the circular channel. The galvanic pile is vertically stacked to form a galvanic pile module, the circuit adopts an up-down series connection mode, and the upper part and the lower part of a single galvanic pile unit are provided with power taking structures.

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

Therefore, the plate-fin heat exchanger with small volume, large heat exchange strength and large circulation and heat exchange area is adopted as much as possible in the electric pile power generation module, the heat exchanger is integrated in the heat preservation interior of the module, and then all high-temperature equipment such as the electric pile, the cathode-anode heat exchanger and the like are in the range of starting heating and heat preservation, so that a heat isolation system is formed. In the starting and temperature rising process, the electric pile module and the heater can be heated together to rise the temperature, so that the overall temperature rising efficiency of the system can be improved. In addition, the electric pile units 301 in the electric pile module 300 are linearly arranged, the cathode gas path system of the module is arranged in a square mode, and the inlet and outlet forms of the cathode and the anode are regular, so that the integration of the 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 is arranged by adopting a vertical linear pile tower, the gas path system is arranged in a square mode, the gas inlet and outlet form is regular, and the interface is friendly, so that the heat exchanger integration is facilitated. 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 the heat dissipation is reduced, and the thermal efficiency of the 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 temperature-rise equipment to form a heat isolation system. In the starting and temperature rising process, the heat exchanger can be heated inside and outside simultaneously, the overall heating efficiency can be improved, and the pressure of a heating system in the module in the starting process is reduced.

More specifically, returning to the present embodiment, as an example, in a square box, the piping wiring of the cathode gas piping system and the anode gas piping system are provided on the left and right sides of the box. The cathode gas pipeline system comprises a cathode gas inlet pipeline with an outer end serving as a cathode air inlet B1 and a cathode gas outlet pipeline with an outer end serving as a cathode air outlet B2, the anode gas pipeline system comprises an anode gas inlet pipeline with an outer end serving as an anode fuel gas inlet A1 and an anode gas outlet pipeline with an outer end serving as an anode fuel 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 inward extending section 6. The inlet section 4 transversely extends into the box body from the top of the side wall of the heating and insulating box 100, namely horizontally extends into the box body along two sides of the width direction of the box body shown in fig. 5; the side wall sections 5 extend downward along the left and right side walls of the module mounting case 200, as shown in fig. 6; the inwardly extending section 6 extends into the box from the bottom wall of the module mounting box 200.

As shown in fig. 8 and 10, the respective inward extending sections 6 of the cathode inlet duct and the cathode outlet duct are respectively connected to the bottom wall air inlet 203 and the bottom wall air outlet 204 of the module installation box 200, but do not need to extend into the installation box cavity, so that air can be introduced into the front side air inlet cavity 201 or led out from the rear side air outlet cavity 202; referring to fig. 9 and 11, each cell stack unit 301 is provided with a front side stack air inlet 3011 and a rear side stack air outlet (not shown) located at the back of the front side stack air inlet 3011, respectively, to communicate the bottom wall air inlet 203, the cell stack unit 301, and the bottom wall air outlet 204.

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

Wherein, the pipes of the cathode gas pipe system and the anode gas pipe system extend into the box body cavity from the bottom wall of the module installation box 200, and a base 3 is further arranged between the bottom wall of the module installation box 200 and the bottom wall of the heating and heat-insulating box 100 to support the module installation box 200 and form a bottom wall space so that the pipes can be bent and extend into the box body, as shown in fig. 5 and 7. As shown in fig. 2, 3 and 6, at least a portion of the side wall pipe sections 5 of the cathode gas piping system and the anode gas piping system may also be formed in a zigzag coiled pipe shape to enhance the heat exchange effect.

Fig. 8 and 9 are a perspective view and a front view of the stack power generation module shown in fig. 1, with the heat insulation box and the front and rear walls of the module installation box removed, so that the stack module 300 in the module installation box 200 can be clearly observed. As can be seen from fig. 8 and 9, for ease of monitoring, the stack power module may further include a temperature and pressure monitoring pole 7 extending from the top of the module mounting case 200 and/or a forward extending voltage monitoring power take pole 9.

Fig. 11 is a perspective view of a stack module in the module installation box of fig. 8 and 9. Wherein, for realizing reliable stable vertical linear heap tower between a plurality of galvanic pile units 301, galvanic pile power generation module includes that vertical wearing links up the screw nut subassembly 10 of fastening each galvanic pile unit 301, wherein each galvanic pile unit 301 stretches out respectively and gets electric journal stirrup 3012, and each gets electric journal stirrup 3012 and stretches out respectively and have voltage monitoring to get pole 9, and each gets electric journal stirrup 3012 of vertical fixed connection is connected to screw nut subassembly 10 electricity, as shown in fig. 9. For fastening, a tensioning assembly 11, for example a compression spring or the like, can also be provided.

Like this, electric pile unit 301 sets up gets electric lug structure to utilize the screw rod to connect, the junction sets up voltage monitoring and gets the pole, makes things convenient for failure diagnosis, and can realize the multi-power electricity generation mode. The module external interface is simple and user-friendly, and can be applied to office power utilization and the like in places of laboratory plants.

In the existing electric pile power generation module with the annular structure, because the electric pile module 300 is provided with an overall upper and lower power taking structure, the power generation condition of an electric pile in the middle layer of a pile tower is difficult to master, and the integrated fault diagnosis and equipment operation monitoring are not facilitated. The single reactor tower cannot monitor the operation condition of the middle electric reactor, and fault diagnosis in operation is inconvenient. In the present invention, a voltage monitoring system is added to each layer of the stack unit 301, so that the operation state of the stack module 300 can be monitored in real time during the operation process. All the stack units 301 are designed with voltage monitoring mechanisms for operation monitoring and fault diagnosis. Meanwhile, different numbers of the pile units 301 can be freely connected into the circuit, and switching of different power generation modes can be realized.

In summary, in the stack power generation module of the present invention, a plurality of, for example, 1 kW-level stack units 301 are adopted to form a single stack tower structure arranged longitudinally to form a stack module 300, and a gas supply system between the stack units 301 forms a tree-shaped parallel connection by using a pipeline and a gas distribution structure. The stack module 300 is placed in a module installation box 200 with a square box body shape, a box body cavity of the module installation box 200 is divided into a front part and a rear part by the stack module 300 and the gas baffle 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 opened on the bottom wall of the module installation box 200. The cathode and anode heat exchangers can be arranged on the left side and the right side of the module installation box 200, the square plate-fin heat exchangers are adopted, and the pipelines can be designed into a coil pipe to increase heat exchange, so that a heat isolation system of the galvanic pile, the heat exchanger and the air supply system is formed.

The whole power generation module system is arranged in an external heating insulation box 100, and the heating insulation box 100 can maintain the heat balance of the system under the running condition of the 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 galvanic pile unit 301 is provided with a power taking lug structure, each galvanic pile is electrically connected by a screw and a nut, and a voltage monitoring power taking rod 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 are described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the above embodiments, and within the technical concept of the present invention, many simple modifications can be made, for example, if the stack power generation module is systematically enlarged, more stack units 301 and gas stoppers 8 can be arranged linearly in the vertical direction and placed in the square module installation box 200, and these simple modifications are within the protection scope of the present invention.

It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.

In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.

Claims

1. A stack power generation module, comprising:

a heating and heat-insulating box (100); and

the module installation box (200) is embedded in the heating and heat preservation box (100) and comprises a built-in galvanic pile module (300) and a front-side air inlet cavity (201) and a rear-side air outlet cavity (202) which are formed on two sides of the galvanic pile module (300) in a separating mode, and the galvanic pile module (300) comprises a plurality of galvanic pile units (301) which are sequentially stacked and connected in series along the height direction (H) of the box body.

2. The stack power generation module according to claim 1, wherein the heating and heat insulating box (100) and the module installation case (200) are square cases.

3. The stack power module according to claim 2, characterized in that it comprises a cathode gas piping system comprising a cathode heat exchanger (1) and an anode gas piping system comprising an anode heat exchanger (2), said cathode heat exchanger (1) and said anode heat exchanger (2) being located inside said heating incubator (100).

4. The stack power generation module according to claim 3, characterized in that the cathode heat exchanger (1) and the anode heat exchanger (2) are plate-fin heat exchangers.

5. The stack power generation module according to claim 3, characterized in that the cathode heat exchanger (1) and the anode heat exchanger (2) are in the shape of a cubic block and are disposed outside of the left and right side walls of the module installation case (200), respectively.

6. The stack power module of claim 3, wherein the cathode gas piping system and the anode gas piping system each comprise:

the inlet section (4) transversely extends into the box body from the top of the side wall of the heating and heat-insulating box (100);

side wall sections (5) extending downward along left and right side walls of the module mounting case (200); and

an inward extending section (6) extending into the box body from the bottom wall of the module installation box (200).

7. The stack power module according to claim 6, characterized in that the side wall tube sections (5) are formed in the shape of a meander-wound coil.

8. The stack power module according to claim 6, wherein the inner reach (6) of the anode gas piping system is located at the front side of the stack module (300) and is bypassed in parallel to each of the stack units (301) in turn, each of the stack units (301) being provided with a front stack air inlet (3011) and a rear stack air outlet, respectively.

9. The stack power module according to claim 1, characterized in that it comprises a temperature and pressure monitoring rod (7) protruding from the top of the module mounting box (200).

10. The stack power module according to claim 1, characterized in that a gas block (8) is provided in the module installation box (200) for separating the front air inlet chamber (201) and the rear air outlet chamber (202) in the front and rear direction.

11. The pile power generation module according to any one of claims 1 to 10, wherein each pile unit (301) is extended with a power-taking lug (3012), and each power-taking lug (3012) is extended with a voltage monitoring power-taking pole (9).

12. The pile power module of claim 11, comprising a screw nut assembly (10) vertically threaded to fasten each pile unit (301), wherein the screw nut assembly (10) is electrically connected to each electricity-taking lug (3012).