CN202094217U - Proton exchange membrane fuel cell stack with hydrogen sensor - Google Patents

Abstract

The utility model discloses a proton exchange membrane fuel cell stack with a hydrogen sensor, which comprises at least one fuel cell plate (2) and splints (1) arranged on both sides of the fuel cell plate (2) and connected to each other. The inboards of the splints (1) on both sides are respectively provided with a cathode plate (8) and an anode plate (9), and the outside of the splint (1) on one side is provided with an oxygen input pipe (6) and a hydrogen input pipe (5), and the other The outside of the side splint (1) is provided with a water output pipe (7), and the hydrogen gas input pipe (5) is provided with a hydrogen sensor (10), and the hydrogen sensor (10) is connected to the controller (12) through a data line (11). The utility model can detect whether the hydrogen gas leaks, so as to achieve the purpose of protecting equipment and preventing in advance.

Description

Proton exchange membrane fuel cell stack with hydrogen sensor

technical field

The utility model relates to the field of fuel cells, in particular to a proton exchange membrane fuel cell stack with a hydrogen sensor.

Background technique

As a clean, efficient and stable power supply technology, fuel cells have been successfully applied in the aerospace and military fields, and now countries around the world are accelerating their commercial development in the civilian field. Compared with the prior art, the fuel cell has obvious advantages in the fields of power supply, electric drive, power generation, etc., and has broad application prospects. As power sources for mobile phones, personal digital devices (PDAs), camcorders, notebook computers, electric toys, etc., fuel cells will create a road to commercial application. Since the fuel cell uses hydrogen as fuel in the process of power generation, it has high requirements for its safe operation. The current hydrogen fuel cell stack cannot detect the use of hydrogen in real time during the use of hydrogen fuel cells, which may cause potential safety hazards and fail to achieve the purpose of protecting equipment and pre-protection.

Utility model content

The purpose of the utility model is to provide a proton exchange membrane fuel cell stack with a hydrogen sensor. The utility model can detect whether the hydrogen gas leaks, so as to achieve the purpose of protecting equipment and preventing in advance.

The technical scheme of the present utility model: a proton exchange membrane fuel cell stack with a hydrogen sensor is characterized in that it includes at least one fuel cell plate and splints arranged on both sides of the fuel cell plate and connected to each other, and the inner sides of the splints on both sides The cathode plate and the anode plate are respectively provided, the oxygen input pipe and the hydrogen input pipe are arranged on the outside of the splint on one side, the water output pipe is arranged on the outside of the splint on the other side, and the hydrogen sensor is arranged on the hydrogen input pipe, and the hydrogen sensor passes through the data line. Connect the controller.

In the aforementioned proton exchange membrane fuel cell stack with a hydrogen sensor, the shape of the hydrogen sensor is ring-shaped.

In the aforementioned proton exchange membrane fuel cell stack with a hydrogen sensor, the interconnected splints are interconnected splints via a plurality of bolts.

In the aforementioned proton exchange membrane fuel cell stack with a hydrogen sensor, the hydrogen sensor is a semiconductor hydrogen sensor, a thermoelectric hydrogen sensor or an electrochemical hydrogen sensor.

Compared with the prior art, the utility model uses the hydrogen sensor to observe in real time whether leakage occurs during the hydrogen input process, so as to prevent potential safety hazards that may occur during the use of the hydrogen fuel cell to the greatest extent, and finally achieve the functions of protecting equipment and pre-protection , to ensure the safe operation and safe use of fuel cells. The utility model also has the characteristics of convenient and fast use, high measurement accuracy, good real-time detection and simple implementation structure.

Description of drawings

Fig. 1 is a structural representation of the utility model.

The marks in the attached drawings are: 1-splint, 2-fuel cell plate, 3-bolt, 4-nut, 5-hydrogen input pipe, 6-oxygen input pipe, 7-water output pipe, 8-cathode plate, 9- Anode plate, 10-hydrogen sensor, 11-data line, 12-controller.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings and embodiments, but it is not used as a basis for limiting the utility model.

Example. A proton exchange membrane fuel cell stack with a hydrogen sensor, as shown in Figure 1, is characterized in that it includes at least one fuel cell plate 2 and splints 1 that are arranged on both sides of the fuel cell plate 2 and are connected to each other. The inner side of the splint 1 is respectively provided with a cathode plate 8 and an anode plate 9, the outside of the splint 1 on one side is provided with an oxygen input pipe 6 and a hydrogen input pipe 5, and the outside of the splint 1 on the other side is provided with a water output pipe 7 and a hydrogen input pipe. 5 is provided with a hydrogen sensor 10, and the hydrogen sensor 10 is connected to a controller 12 via a data line 11.

The shape of the hydrogen sensor 10 is ring-shaped, and can be conveniently set on the hydrogen input pipe 5 .

The interconnected splints 1 are splints 1 interconnected by a plurality of bolts 3 and fastened by nuts 4 .

The hydrogen sensor 10 may be a semiconductor hydrogen sensor, a pyroelectric hydrogen sensor or an electrochemical hydrogen sensor.

The working principle of the utility model is as follows: the fuel cell plate 2 is clamped in the middle of the two splints 1 by bolts 3 and nuts 4, when hydrogen and oxygen are injected into the fuel cell plate 2 through the hydrogen input pipe 5 and the oxygen input pipe 6 respectively , due to the internal catalyst action, anions and cations move to the cathode plate 8 and the anode plate 9 respectively, thereby generating electric energy. The water molecules produced at this time flow out through the water outlet pipe 7 . In order to observe whether leakage occurs during the hydrogen input process, an annular hydrogen sensor 10 is arranged on the outer ring of the hydrogen input pipe 5, so that the observed data can be transmitted to the inside of the controller 12 for observation through the data line 11, so as to ensure the safety of the fuel cell run.

Claims (4)

1. the pem fuel cell stack that has hydrogen gas sensor, it is characterized in that: comprise at least more than one fuel cell plate (2) and be arranged on fuel cell plate (2) both sides and interconnective clamping plate (1), the inboard of the clamping plate of both sides (1) is respectively equipped with minus plate (8) and positive plate (9), the clamping plate of one side (1) outside is provided with oxygen input tube (6) and hydrogen input pipe (5), the clamping plate of opposite side (1) outside is provided with water delivery pipe (7), hydrogen input pipe (5) is provided with hydrogen gas sensor (10), and hydrogen gas sensor (10) connects controller (12) through data wire (11).

2. the pem fuel cell stack with hydrogen gas sensor according to claim 1 is characterized in that: the profile of described hydrogen gas sensor (10) is annular.

3. the pem fuel cell stack with hydrogen gas sensor according to claim 1 is characterized in that: described interconnective clamping plate (1) are through the interconnective clamping plate of a plurality of bolts (3) (1).

4. according to claim 1,2 or 3 described pem fuel cell stacks with hydrogen gas sensor, it is characterized in that: described hydrogen gas sensor (10) is semiconductor-type hydrogen gas sensor, electrothermic type hydrogen gas sensor or electrochemistry type hydrogen gas sensor.

Images