CN217641424U

CN217641424U - Gas-water separation device for fuel cell system

Info

Publication number: CN217641424U
Application number: CN202220730105.2U
Authority: CN
Inventors: 王涵; 张潇丹; 苗佩宇; 方川
Original assignee: Beijing Sinohytec Co Ltd
Current assignee: Beijing Sinohytec Co Ltd
Priority date: 2022-03-31
Filing date: 2022-03-31
Publication date: 2022-10-21
Anticipated expiration: 2032-03-31

Abstract

The utility model relates to a fuel cell technical field discloses a gas-water separation device for fuel cell system, include: casing, internal portion water baffle, hydrogen concentration sensor interface, air inlet, gas vent and outlet, hydrogen concentration sensor interface sets up at the casing top, the air inlet sets up in casing one side, the casing opposite side is established to the gas vent, the casing bottom is established to the outlet. Wherein the inner part water baffle plate is sequentially provided with a first water diversion baffle plate, a guide plate, a second water diversion baffle plate and a current collecting plate from top to bottom. The device separates hydrogen and water from the tail product through the internal water baffle plate, so that the hydrogen and water can be recycled; meanwhile, the interface of the hydrogen concentration sensor is matched with the sensor to monitor the concentration of the hydrogen in the device; the whole device has simple structure and low manufacturing cost.

Description

Gas-water separation device for fuel cell system

Technical Field

The utility model relates to a fuel cell technical field, concretely relates to hydrogen fuel cell's gas-water separation device.

Background

A fuel cell is a chemical device that directly converts chemical energy of fuel into electrical energy, and is also called an electrochemical generator. The fuel cell converts the Gibbs free energy in the chemical energy of the fuel into electric energy through electrochemical reaction, and is not limited by the Carnot cycle effect, so the efficiency is high; when the hydrogen fuel cell works, oxygen and hydrogen in the air enter the fuel cell to generate electrochemical reaction to generate water, so that the hydrogen fuel cell is clean and environment-friendly.

With the development of economy and the increase of population, the demand of human beings on water resources is continuously increased, and in addition, unreasonable exploitation and utilization of water resources exist, water shortage problems of different degrees appear in many countries and regions, but because the fuel cell does not recycle the water in the tail gas in the working process, the waste of fresh water resources is caused.

In order to solve the above problems, the prior art discloses a hydrogen fuel cell gas-water separation device CN2019105775146, which comprises a gas-water separator main body, an inner cylinder, a mixed gas inlet, a hydrogen return port, a water outlet and an exhaust gas outlet, wherein the mixed gas inlet, the hydrogen return port, the water outlet and the exhaust gas outlet are arranged on the gas-water separator main body; the hydrogen return port is arranged at the top of the gas-water separator body, the water outlet is arranged at the bottom of the gas-water separator body, the mixed gas inlet is arranged on the side wall of the gas-water separator body, the air inlet direction of the mixed gas inlet is tangential to the inner wall of the gas-water separator body, the inner cylinder is provided with an inner flange, the inner flange is arranged in the gas-water separator body, and a channel which is communicated up and down is arranged in the inner cylinder.

The scheme solves the problem of gas-water separation to a certain extent, but the scheme still has a plurality of defects, such as difficulty in applying the size, the volume and the weight to the gas-water separation at the tail exhaust end of the hydrogen fuel cell engine, no hydrogen concentration sensor interface, and incapability of detecting the hydrogen concentration in the device. Further in the process of building a laboratory fuel cell test bench, a sensor for monitoring the concentration of tail exhaust hydrogen does not have a corresponding base or an interface, test data is inaccurate due to extremely high flooding in the test process, and the sensor cannot be used continuously due to damage, so that property loss is caused.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to solve the technical problem that a gas-water separation device for fuel cell is provided, realizes the gas-water separation of tail row, and the device simple structure can the detection device interior hydrogen concentration simultaneously, effectively prolongs hydrogen concentration sensor life, practices thrift the test cost.

In order to solve the technical problem, the utility model discloses a following technical scheme:

a gas-water separation apparatus for a fuel cell, comprising: casing, internal portion water baffle, hydrogen concentration sensor interface, air inlet, gas vent and outlet, hydrogen concentration sensor interface sets up at the casing top, the air inlet sets up in casing one side, the casing opposite side is established to the gas vent, the casing bottom is established to the outlet.

Further, interior partial water baffle sets up to first minute water baffle, guide plate, second minute water baffle and current collector from top to bottom, the baffle that divides staggers each other, forms mobile space.

The flow guide plate is arranged on one side of the air inlet, the first water diversion baffle and the second water diversion baffle are arranged on one side of the air outlet, and the flow collecting plate is arranged at the bottom of the device.

Further, the first water distribution baffle and the second water distribution baffle are of a branch-shaped structure integrated by arc-shaped thin plates.

Wherein, the guide plate is an arc-shaped thin plate.

Further, the gas-water separation device also comprises a liquid level meter, and the liquid level meter is arranged at the bottom of the separation device.

Further, hydrogen concentration sensor interface is connected with hydrogen concentration sensor, and hydrogen concentration sensor interface sets up to the diameter and is 21mm, can satisfy hydrogen concentration sensor installation requirement.

Furthermore, the rear end of the water outlet is connected with a water storage tank to match different water drainage and storage modes.

The utility model discloses following beneficial effect has at least:

1. the utility model provides a gas-water separation device can separate tail row's product water and hydrogen effectively, retrieves respectively and recycles, and this separator spare part is few, simple structure, and the practical application is with low costs, and the maintenance cost is low.

2. The utility model provides a gas-water separation device still is equipped with hydrogen consistency transmitter interface and sensor adaptation, can detect hydrogen concentration, and can effectively prolong hydrogen consistency transmitter's life-span, practices thrift the cost.

Drawings

FIG. 1 is a schematic view of the gas-water separation apparatus of the present invention;

FIG. 2 is a cross-sectional view of the top hydrogen concentration sensor interface of the gas-water separation device of the present invention.

Description of the reference symbols: 1. a hydrogen concentration sensor interface; 2. an air inlet; 3. a baffle; 4. a first baffle plate; 5. a second baffle; 6. a collector plate; 7. a liquid level meter; 8. a water outlet; 9. an exhaust port; 10. a housing.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the following description will be made in conjunction with the embodiments and drawings of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner" and "outer" indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the present invention, and in the description of the present invention, "plurality" means two or more unless otherwise stated.

Example one

With reference to fig. 1, the present invention provides a gas-water separator for a fuel cell system, comprising:

casing 10, interior water baffle, hydrogen concentration sensor interface 1, air inlet 2, gas vent 9 and outlet 8, hydrogen concentration sensor interface 1 sets up at casing 10 top, air inlet 2 sets up in casing 10 one side, gas vent 9 is established at casing 10 opposite side, outlet 8 is established in casing 10 bottom.

Further, interior water baffle sets up to first water baffle 4, guide plate 3, second water baffle 5 and the current collector 6 of dividing from top to bottom, the water baffle staggers each other, forms mobile space.

The guide plate 3 is arranged on one side of the air inlet 2, the first water diversion baffle plate 4 and the second water diversion baffle plate 5 are arranged on one side of the air outlet 9, and the collector plate 6 is arranged at the bottom inside the device.

Further, the first water diversion baffle 4 and the second water diversion baffle 5 are of an arc-shaped thin plate integrated dendritic structure.

Wherein, the guide plate 3 is an arc-shaped thin plate.

Further, the gas-water separation device is divided into an upper cavity and a lower cavity by the collector plate 6, wherein the upper cavity is a gas collection cavity, and the lower cavity is a collector.

Further, the gas-water separation device also comprises a liquid level meter 7, wherein the liquid level meter is arranged at the bottom of the separation device and on one side of the air inlet and is used for measuring the water level of the collecting cavity.

In implementation, as shown in the arrow direction in fig. 1, after the fuel cell engine tail product enters the gas-water separation device through the left gas inlet, the gas flow rate is reduced, liquid water drops are blocked by the second water diversion baffle, and under the action of gravity, the liquid water drops flow into the collecting cavity along the branched structure of the second water diversion baffle and the collecting plate, so that the first gas-liquid separation is completed.

After the tail exhaust gas enters the second water diversion baffle and the guide plate channel, the gas sectional area is reduced, the flow velocity of the tail exhaust gas is increased, when the gas flows between the second water diversion baffle and the first water diversion baffle, the gas sectional area is increased therewith, the gas flow velocity is reduced, residual liquid water drops in the tail exhaust gas are separated by the first water diversion baffle, and under the action of gravity, the tail exhaust gas flows into the collecting cavity after flowing through the inner wall of the shell and the collecting plate along the branch-shaped structure of the first water diversion baffle and the tail end gap of the upper surface of the second water diversion baffle, so that the purpose of secondary gas-liquid separation is achieved.

When the tail exhaust gas flows through the first water distribution baffle and the second water distribution baffle, a small amount of liquid drops can be attached to the upper surfaces of the first water distribution baffle and the second water distribution baffle, and flow into the manifold along the gap at the rear end of the upper surfaces of the first water distribution baffle and the second water distribution baffle under the action of gravity and air flow blowing, so that the gas flows through the inner wall of the shell and the manifold to complete third gas-liquid separation, finally, the gas is discharged from the right side exhaust port, and the liquid is reserved in the manifold at the bottom.

When the liquid level meter at the left end of the bottom displays that the water level of the collecting cavity exceeds a certain value, the water of the collecting cavity is discharged from the right water outlet.

Example two

The utility model provides a gas-water separation device for fuel cell system, the same part with embodiment does not explain again, and is very special:

wherein the hydrogen concentration sensor interface at gas-water separation device top sets up to diameter 21mm, can satisfy hydrogen concentration sensor's installation requirement for the sensor of monitoring tail exhaust hydrogen concentration has corresponding interface, effectively prolongs hydrogen concentration sensor's life-span.

EXAMPLE III

the rear end of the right water outlet can be matched with different water drainage and storage modes according to practical application conditions, and a water storage tank can be connected to the rear end of the water outlet for storing water during laboratory tests.

The utility model provides a gas-water separation device for fuel cell system can effectually separate hydrogen and water in the tail gas product, carries out recycle to be provided with hydrogen concentration sensor interface and sensor phase-match, monitoring hydrogen concentration, the device simple structure, no technical difficulty, it is extensive to be suitable for the scene, makes, transports, the maintenance cost is low, can realize the volume production.

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 gas-water separation apparatus of a fuel cell system, comprising:

casing, internal portion water baffle, hydrogen concentration sensor interface, air inlet, gas vent and outlet, hydrogen concentration sensor interface sets up at the casing top, the air inlet sets up in casing one side, the casing opposite side is established to the gas vent, the casing bottom is established to the outlet.

2. The gas-water separator of a fuel cell system according to claim 1, wherein the internal water dividing baffles are arranged as a first water dividing baffle, a flow guide plate, a second water dividing baffle and a flow collecting plate from top to bottom, and the water dividing baffles are staggered with each other to form a flowable space.

3. The gas-water separation device of a fuel cell system as claimed in claim 2, wherein the flow guide plate is disposed on the side of the gas inlet, the first water-dividing baffle and the second water-dividing baffle are disposed on the side of the gas outlet, and the flow collecting plate is disposed at the bottom inside the device.

4. The gas-water separation device of a fuel cell system according to claim 3, wherein the first water-dividing baffle and the second water-dividing baffle are an arc-shaped thin plate integrated dendritic structure.

5. The gas-water separator for a fuel cell system as claimed in claim 4, wherein the baffle is an arc-shaped thin plate.

6. The gas-water separation device of a fuel cell system as claimed in claim 5, further comprising a liquid level meter disposed at the bottom of the separation device.

7. The gas-water separation device of the fuel cell system according to claim 6, wherein a hydrogen concentration sensor is connected to the hydrogen concentration sensor interface.

8. The gas-water separator according to claim 7, wherein a water storage tank is connected to a rear end of the drain port.