JPS58157062A - Layer-built fuel cell - Google Patents

Abstract

PURPOSE:To equalize the flow rates of a fuel and an oxidizer supplied from manifolds by providing the inflow parts of the fuel and the oxidizer flow paths of a gas-separating plate with throats having a sectional area smaller than the sectional area of the flow paths. CONSTITUTION:A unit cell consisting of a fuel electrode, an electrolyte mixture and an oxidizer electrode, is attached between gas-separating plates 6 each of which is provided with fuel flow paths 6a and oxidizer flow paths 6b on its upper and lower surfaces in such a manner that the fuel flow paths 6a are perpendicular to the oxidizer flow paths 6b. A fuel and an oxidizer, respectively, are fed from manifolds 5a and 5b are discharged into other manifolds 5a and 5b. In addition, cylindrical throats 7a and 7b are provided at the inflow parts of the fuel flow paths 6a and the oxidizer flow paths 6b of each gas-separating plate 6. As a result, since a pressure loss caused due to the throat 7a or 7b becomes equal to or higher than a pressure loss caused due to the flow path 6a or 6b, the flow rates of the fuel and the oxidizer supplied from the manifolds 5a and 5b can be almost equalized.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an Ili layered composite, particularly to the structure of its fuel flow path or oxidant fh path.

Kame 1- is a disassembly needle view showing the main part configuration of the conventional & chest-shaped composite Kameike, (1) shows rectangular fuel &ji& (Ia) and oxidant flow in directions orthogonal to each other on the upper and lower surfaces respectively. Road (1
(2) is the gas separation plate (υ
(3) A gasket is attached around this unit cell (2) in the shape of a window frame.

Next, the operation will be explained. The gas separation plate (1) and the unit cell (2) are alternately connected to the fuel flow path (1a) and the oxidant flow path
By aligning the directions of (b) and the direction of the flow path of the corresponding gas separation plate (1) and the direction of the electrode of the unit cell (2), multiple units are layered to form a resin-type fuel. Let's call it Kanike (4). At this time, a gasket (3) is inserted between the gas separation plate (1) and the unit cell (2) to prevent the fuel and oxidizer from leaking to other areas than the paper. The configuration for creating a stacked fuel Kameike (4) assembled in the same way as Jin
This will be explained using a cross-section plane box.

Around the layered fuel Kameike (4), in order to supply fuel and oxidizer to each of the fuel flow path and oxidizer flow path, there is a box-shaped fuel and A fuel manifold (6a) and an oxidizer manifold (5b), which serve as flow paths for supplying an oxidizer, are installed.

Fuel manifold (5a) and oxidizer manifold (
When 5b) is supplied with fuel and oxidizer, the fuel & road (1a
) and the oxidizer flow path (lb), respectively. Fuel flow I@(la) and oxidizer journey (
tb) and the oxidizer entered into the corresponding fuel%
After examining the inside of LIII and the electrode, tafht contributes to the electrochemical reaction in the cell (2).
jIL force is generated and water is produced by reaction. The direct-base torque generated at this time is due to the fact that the single cells (2) are connected in series in the pole direction without intervening the gas separation plate (1). It is led to the external ayu from the lower grade waste separation plate. In addition, the fuel and Europeanization agent for the reaction that do not contribute to the reaction are the corresponding fuel frL (1
a) and the oxidizer flow path (1b), the corresponding outlet side fuel manifold (6a) and oxidizer manifold (6)
b) External entry/exit. Here, as the number of breasts increases, the corresponding manifold structure or the corresponding derivative should be used to uniformize the 'kf11 distribution of fuel and oxidant and improve the performance of the scalloped fuel reservoir. The more I devised the shape, the more I needed it.

The conventional fuel travel path (,! Since the oxidizer flow path has only a simple rectangular shape as shown above, it is difficult to make the meteor distribution of the K material or oxidizer & path uniform. This method is difficult and suffers from the disadvantage that it is necessary to supply excess fuel or oxidant beyond that contributing to the reaction.

This invention eliminates the above-mentioned drawbacks of the conventional method (Q).
This was done at the time of the fuel flow path or the oxidizer fj+
(b) By providing a throat section (the cross-sectional area of which is smaller than the other sections), the flow distribution of fuel or acid chloride (Q) is intended to be reduced.

Hereinafter, one embodiment of the present invention will be described. 11
In Figure J8, (6) is an enlarged view of a portion of the inflow side of the fuel and oxidizer, and (6a) is a plurality of rectangles provided in parallel on the negative side of the gas separation plate (6). The fuel flow path (6b) in the shape of
(7a) is a cylindrical fuel vfk provided in the inflow part of the fuel flow path (6a), (7b) is This is a cylindrical oxidant throat provided at the inflow portion of the oxidant flow path (6b) as shown above.

Next, I will explain the operation. The method of configuring and operating a woodcutter no-type fuel pond using this gas separation plate (6) is the same as the method of constructing and operating a single-layer fuel pond (4) using the conventional gas separation plate (1). It is almost in the direction.

That is, in the case of the gas separation plate (60 pieces), it is defined as explained in "C" in the second factor.

Here, when the fuel and oxidizer are supplied to the fuel manifold (5a) and the oxidizer manifold (5b), a fuel throat sc'r is installed at each inflow portion.
a) and the oxidizer throat 5 (Wb), and the fuel flow path (6a) and the oxidizer M path (
6b) When the fuel and acid are mixed, a chemical reaction occurs in the cell (2). Next, the fuel throat (7a
) and the oxidizer 1lIk part (7b), that is, the throat part, and its operation will be explained in detail. Isthmus Sect #1SI
fLl bending is smaller than the bending of other flow path parts (for example, 1
710 degrees), and the moxibustion of the throat is treated with a window frame-shaped gasket (
Make it approximately equal to the window frame width in 3). As a result, the pressure loss due to the distribution of fuel or oxidizer coming from the traveler will be equal to or greater than the pressure loss caused by the throat or fIrL route. Until then, the distribution of fuel or oxidizer supplied from the manifold becomes almost uniform due to the increase in pressure drop due to the inlet. In addition, the window frame-shaped gasket (3) is connected to the gas separation plate (6).
Since the eight edges of the gas separation plate are flat, the eight edges of the gas separation plate are uniformly crimped over the entire plate, resulting in improved airtightness.

Furthermore, regarding the shape of the gorge, instead of the cylindrical shape shown in FIG. 8, feldspars can also have a rectangular shape as shown in FIG. 4. In this case, the ease of manufacturing gas separation plates (such as 6J press notes) is superior to that of the rectangular shape shown in factor 4, and the airtightness of the gasket (3) is superior to that of the circular shape shown in Figure 8. It is advantageous.

In addition, in the above implementation machine, the throats 5 (7a) and (7b) are connected to the journey (
Did you show what is installed at the inflow part of 6a) and (6b)?
&k (7a) and (7b) flow * Outgoing parts of (6a) and (6b), medium r#! ! It may be provided on the hook of the lJ part or the inflow part and the swinging part.

However, if a throat is provided in the inlet part, the pressure drop will be affected for all of the inlet gas (fuel or oxidizer), but if it is provided in the outlet part, the gas purified from the general gas h will be affected. Since the pressure loss only changes when the lid is pulled and the remaining gourd, the former tends to be more J+, and the distribution tends to be more uniform.

In addition, in the above-mentioned fruitful sail, did we explain the journey of the gas board, or even if it is caught in the electric machine called 1 km with ribs, is it general movement in nine narrow areas - one or other?

Providing an eye portion that is smaller than the width of the cross section has the same effect as the above-mentioned effect.

As described above, according to the present invention, since a throat portion is provided in the middle of the fuel or ophthalmic agent, the cross-sectional area of the cross-sectional area of the fuel or the ophthalmic agent is smaller than the cross-sectional area of other travel routes. ,n
Distribution can be made uniform.

[Brief explanation of the drawing]

Le 1- is an exploded perspective view 1 that shows the conventional Shinno-type f &Ryogameike's cover part 1, and 2I81 is a multi-layered type, and 1 curved surface-1 shows the 1st work of Ryokageike. - is a perspective view of an enlarged part showing the throat and travel path of the gas portion and plate according to Komei's Hitori Hoden, Figure 4 is a perspective view of an enlarged part of the gas separation plate that reduces the other cedar-shaped sail of the isthmus of this invention. It is. In h, (1) is a gas separation plate, (2) is a cell, (3) is a gasket, (6) is a gas separation plate, (6a) is a charring material flow path, and (6b) is a removal agent flow. road, (7a) is my#Jtii
x&, (7b) is the demulcent throat. Note that the same reference numerals in 1 indicate the same or corresponding parts. Seal price for agent - Figure 1 IN2 Figure 3 A b Figure 4 Procedural amendment (voluntary) Showa 571 shield Kamo 1, case indication Patent application Showa 6-89111 No. 2,
Title of the invention: Multilayer Fate Battery 3. Person making the amendment: 6. Claims of the specification to be amended - P4/A 6. Contents of the amendment: Claims 44 of the specification are corrected as shown in the attached sheet. . F. A document stating the scope of claims after the amendment to the list of attached documents; one or more copies of the scope of claims (υFuel 1 - A plurality of electrolyte matrix, oxidizer electrodes and gas separation plates are laminated in sequence, and the above gas separation In a stacked fuel cell in which a fuel flow path is formed between the plate and the fuel electrode, and an oxidant flow path is formed between the oxidizer electrode and the gas separation plate, the flow path has a cross-sectional area in the flow path. A stacked fuel cell characterized in that a throat section is provided with a cross-sectional area smaller than that of the other flow channels.(2) Claim 1, characterized in that the throat section is provided at an inlet portion of the flow channel. The stacked fuel cell described.

Claims (2)

[Claims] (1) A plurality of fuel cells, an electrolyte matrix, an oxidant electrode, and a gas separation plate are sequentially stacked, a fuel flow path is formed between the gas separation plate and the fuel electrode, and the oxidant 1
1! In the shell-shaped fuel Kameike where the oxidizer is formed between the c electrode and the gas separation plate, the flow path is interrupted in the above fIrL.
&Y#+Kameike is characterized by having a throat section smaller than other cross-sectional areas. (2) The horizontal oil type fuel pond according to claim 1, characterized in that the throat is provided at the inlet portion of the flow path.