CN218431691U

CN218431691U - Fuel cell power generation system

Info

Publication number: CN218431691U
Application number: CN202222472086.0U
Authority: CN
Inventors: 苏赵琪; 李飞强; 司宗正; 高云庆
Original assignee: Beijing Sinohytec Co Ltd
Current assignee: Beijing Sinohytec Co Ltd
Priority date: 2022-09-19
Filing date: 2022-09-19
Publication date: 2023-02-03
Anticipated expiration: 2032-09-19

Abstract

The utility model relates to a fuel cell power generation system technical field discloses a fuel cell power generation system, include: engine, three-way valve, choke valve, hydrogen manufacturing equipment, fuel cell, battery and gas vent, engine, three-way valve, choke valve, hydrogen manufacturing equipment, fuel cell and battery connect gradually, hydrogen manufacturing equipment with the gas vent is connected, three-way valve connection to the gas vent with on the connecting pipeline between the hydrogen manufacturing equipment. The utility model discloses utilize the tail gas temperature of engine and the effect of catalyst, methyl alcohol in the catalysis methyl alcohol water tank produces hydrogen and is used for the fuel cell electricity generation, is used for the equipment on the boats and ships with the electric quantity that fuel cell supplied with to pass through the battery with unnecessary electric quantity and save, realize the energy saving and emission reduction of boats and ships.

Description

Fuel cell power generation system

Technical Field

The utility model relates to a fuel cell power generation system technical field, in particular to fuel cell power generation system.

Background

The fuel cell is an electric energy supply device which outputs electric energy while generating water through the electrochemical reaction of hydrogen and oxygen and has the advantages of high generating efficiency, little environmental pollution, high specific energy, low noise and the like. The method has wide attention in the field of new energy and has good application prospect in a plurality of technical fields.

The conventional ship is generally provided with two engines, one engine is used for power output, the other engine is used for system power supply, and the two engines are heavy diesel engines generally, so that the energy consumption is high during use, the energy is not beneficial to energy conservation and emission reduction, and the environmental protection is influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that two engines are used to boats and ships and the power consumption that produces is high and be unfavorable for energy saving and emission reduction, the utility model provides a fuel cell power generation system replaces the engine that boats and ships were used for the system power supply through adopting fuel cell power generation system, utilizes traditional engine tail heat removal degree to make the required hydrogen of fuel cell, makes the purpose that reaches energy saving and emission reduction.

The technical content of the utility model is as follows:

as an aspect of the present invention, the present invention provides a fuel cell power generation system, including:

engine, three-way valve, choke valve, hydrogen manufacturing equipment, fuel cell, battery and gas vent, engine, three-way valve, choke valve, hydrogen manufacturing equipment, fuel cell and battery connect gradually, hydrogen manufacturing equipment with the gas vent is connected, three-way valve connection to the gas vent with on the connecting pipeline between the hydrogen manufacturing equipment, hydrogen manufacturing equipment includes methyl alcohol water tank, catalysis heat pipe and temperature sensor, the catalysis heat pipe temperature sensor set up in the methyl alcohol water tank, the methyl alcohol water tank is connected with fuel cell, the snakelike setting of catalysis heat pipe is inside the methyl alcohol water tank, the coating of catalysis heat pipe surface has the catalysis layer, catalysis heat pipe both ends communicate with choke valve and gas vent respectively, temperature sensor sets up on the catalysis heat pipe.

Further, the fuel cell power generation system further includes: the first switch is connected with the electric equipment port, and the first switch is connected with the storage battery in parallel.

Furthermore, a second switch is arranged on a connecting pipeline between the fuel cell and the storage battery, and the second switch is connected with the first switch in parallel.

Furthermore, the storage battery is connected with the electric equipment port, and a third switch is arranged on a connecting pipeline between the storage battery and the electric equipment port.

Further, a tail row is arranged on one side, away from the methanol water tank, of the fuel cell.

Furthermore, a stop valve is arranged on a connecting pipeline between the catalytic heat pipe and the exhaust port, the stop valve is arranged on the outer side of the methanol water tank, and the three-way valve is connected to a pipeline between the stop valve and the exhaust port.

The beneficial effects of the utility model include at least: the tail gas temperature of the engine and the action of the catalyst are utilized to catalyze the methanol in the methanol water tank, hydrogen is generated and used for power generation of the fuel cell, the electric quantity supplied by the fuel cell is used for equipment on the ship, and the redundant electric quantity is stored through the storage battery, so that the energy conservation and emission reduction of the ship are realized.

Drawings

Fig. 1 is a schematic view of the overall structure of a fuel cell power generation system according to the present invention.

Wherein:

1-an engine;

2-three-way valve;

3-a throttle valve;

4-hydrogen production equipment;

401-methanol water tank; 402-catalytic heat pipes; 403-a temperature sensor;

5-a fuel cell;

6-a storage battery;

7-an exhaust port;

8-a first switch;

9-electric equipment port;

10-a second switch;

11-a third switch;

12-tail row;

13-stop valve.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

With reference to fig. 1, the present invention provides a fuel cell power generation system, including:

engine 1, three-way valve 2, choke valve 3, hydrogen manufacturing equipment 4, fuel cell 5, battery 6 and gas vent 7, engine 1, three-way valve 2, choke valve 3, hydrogen manufacturing equipment 4, fuel cell 5 and battery 6 connect gradually, hydrogen manufacturing equipment 5 with gas vent 7 is connected, three-way valve 2 is connected to gas vent 7 with on the connecting pipeline between the hydrogen manufacturing equipment 4.

Hydrogen production equipment 4 includes methanol water tank 401, catalysis heat pipe 402 and temperature sensor 403, catalysis heat pipe 402 temperature sensor 403 set up in the methanol water tank 401, methanol water tank 401 is connected with fuel cell 5, catalysis heat pipe 402 snakelike sets up inside methanol water tank 401, catalysis heat pipe 402 surface coating has the catalysis layer, catalysis heat pipe 402 both ends communicate with choke valve 3 and gas vent 7 respectively, temperature sensor 403 sets up on catalysis heat pipe 402. The engine 1 is a heavy-duty diesel engine, the highest temperature of tail gas can reach 600 ℃, the catalytic heat pipe 402 is arranged in the methanol water tank 401, the catalytic layer coated on the outer surface of the catalytic heat pipe 402 is a catalyst, when the tail gas of the engine 1 is discharged through the catalytic heat pipe 402, the temperature of the catalytic heat pipe 402 is increased due to the temperature of the tail gas, the methanol is pyrolyzed to generate hydrogen under the action of the catalyst, and the catalyst can complete catalytic reaction with the methanol at 300-500 ℃.

Further, the fuel cell power generation system further includes: first switch 8 and consumer port 9, first switch 8 is connected with consumer port 9, first switch 8 with battery 6 parallel connection.

Further, a second switch 10 is provided on a connection pipe between the fuel cell 5 and the battery 6, and the second switch 10 is connected in parallel to the first switch 8.

Further, the storage battery 6 is connected to the electric equipment port 9, and a third switch 11 is provided on a connection pipe between the storage battery 6 and the electric equipment port 9. The electric equipment port 9 is used for connecting electric equipment and supplying power to the electric equipment.

Further, a tail 12 is provided on a side of the fuel cell 5 away from the methanol water tank 401, and the fuel cell 5 discharges exhaust gas through the tail 12.

Further, a stop valve 13 is arranged on a connecting pipeline between the catalytic heat pipe 402 and the exhaust port 7, the stop valve 13 is arranged outside the methanol water tank 401, and the three-way valve 2 is connected to a pipeline between the stop valve 13 and the exhaust port 7.

If the temperature of the tail gas of the engine is lower, generally less than 300 ℃, or the fuel cell and the storage battery can provide enough electric quantity, the three-way valve is switched to the exhaust pipeline, and the tail gas is directly discharged through the exhaust port; if the temperature of the tail gas is suitable for the catalytic reaction of the methanol and the catalyst, the three-way valve is switched to a pipeline connected with a methanol water tank, hydrogen is generated through the methanol water tank, and the hydrogen is transmitted to a fuel cell to generate power and is supplied to electric equipment on a ship or stored through a storage battery.

Temperature sensor is used for monitoring engine exhaust's temperature, through the tail gas temperature who monitors, dispatches the three-way valve, and the choke valve is used for controlling the circulation that engine exhaust got into in the methyl alcohol water tank, guarantees that tail gas exhausts unobstructed, the utility model provides a choke valve is transferred to the aperture of methyl alcohol water tank direction and is not less than half of complete aperture at least.

As another aspect of the present invention, the present invention provides a fuel cell power generation system including any one of the above-described fuel cell power generation systems for use in a ship.

When the engine exhaust gas satisfies the catalytic reaction of methanol with the catalyst:

when the ship implements a charging mode, the first switch is closed, the second switch and the third switch are opened, and the storage battery is charged and discharged to supply power to the electric equipment;

when the ship implements a charging and discharging mode, the first switch and the second switch are opened, the third switch is closed, and redundant electric quantity is supplied to the storage battery for charging under the condition of ensuring the power consumption of electric equipment;

when the ship implements a discharging mode, the fuel cell stops working, the first switch and the second switch are closed, the third switch is opened, and the storage battery supplies power to the electric equipment.

The utility model discloses a to engine exhaust waste heat reuse, pyrolysis methyl alcohol makes hydrogen, supplies with fuel cell again and generates electricity, and the electric quantity that fuel cell produced can directly supply with the consumer on the boats and ships, also can get up through the battery storage, realizes the energy saving and emission reduction of boats and ships. Meanwhile, compared with a portable hydrogen bottle, the methanol has the advantages of portability and small volume, and the occupied space on a ship is reduced.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A fuel cell power generation system characterized by: the method comprises the following steps:

2. A fuel cell power generation system according to claim 1, wherein: the fuel cell power generation system further includes: the first switch is connected with the electric equipment port, and the first switch is connected with the storage battery in parallel.

3. A fuel cell power generation system according to claim 2, characterized in that: and a second switch is arranged on a connecting pipeline between the fuel cell and the storage battery, and the second switch is connected with the first switch in parallel.

4. A fuel cell power generation system according to claim 2, characterized in that: the storage battery is connected with the electric equipment port, and a third switch is arranged on a connecting pipeline between the storage battery and the electric equipment port.

5. A fuel cell power generation system according to claim 1, characterized in that: and a tail row is arranged on one side of the fuel cell, which is far away from the methanol water tank.

6. A fuel cell power generation system according to claim 1, wherein: the catalytic heat pipe with be provided with the stop valve on the connecting line between the gas vent, the stop valve sets up the outside of methyl alcohol water tank, the three-way valve connection to the stop valve with on the pipeline between the gas vent.