CN217312376U

CN217312376U - Gas-water separator for hydrogen system

Info

Publication number: CN217312376U
Application number: CN202221054828.1U
Authority: CN
Inventors: 邢子义; 王升科; 王潇
Original assignee: Yantai Dongde Industrial Co Ltd
Current assignee: Yantai Dongde Industrial Co Ltd
Priority date: 2022-04-24
Filing date: 2022-04-24
Publication date: 2022-08-30
Anticipated expiration: 2032-04-24

Abstract

The utility model provides a moisture separator for hydrogen system, includes the casing, and the casing bottom separates into the water distribution chamber and the water storage chamber of downside of upside through the baffle, be equipped with a plurality of through-holes that will divide water distribution chamber and water storage chamber to be linked together on the baffle, the bottom in water storage chamber is equipped with the outlet, divide the intracavity portion to be equipped with back shape gas-water separation structure, it includes the first water distribution plate and the second water distribution plate of vertical setting to return shape gas-water separation structure, first water distribution plate is relative with hydrogen return entry position, and the breakwater that the level set up is passed through to the bottom of first water distribution plate is connected with the casing of hydrogen return entry downside. The hydrogen-containing mixed gas generating device has the advantages that the water separating effect is good, hydrogen can be effectively separated from water, flooding caused by the fact that a large amount of water enters the hydrogen circulating pump and the electric pile is avoided, resistance to the hydrogen-containing mixed gas is small when the hydrogen-containing mixed gas passes through, the gas pressure of the hydrogen return outlet is guaranteed, and the power consumption of the hydrogen circulating pump is reduced; the integration degree is high, the length of the hydrogen pipeline is greatly reduced, and the pressure drop generated by the hydrogen pipeline is reduced on the side surface.

Description

Gas-water separator for hydrogen system

The technical field is as follows:

the utility model relates to a gas-water separator for hydrogen system.

Background art:

the development of new energy fuel cell automobiles at present is considered as an important link of traffic energy power transformation, and in order to ensure the normal work of a fuel cell engine, the fuel cell engine generally needs auxiliary systems such as a hydrogen supply subsystem, an air supply subsystem, a circulating water cooling management subsystem and the like. The fuel cell generates electric energy through electrochemical reaction between combustible substances (hydrogen) and oxygen in air, wherein after the reaction of the fuel cell, discharged gas contains a large amount of hydrogen, and if the hydrogen is directly discharged into the atmosphere, on one hand, energy is wasted, on the other hand, the environment is polluted, and on the other hand, the hydrogen is flammable and combustible, so that danger is generated, and therefore, the hydrogen needs to be recycled. At present, these hydrogen-containing mixed gases are generally recycled to the fuel cell by a hydrogen circulation pump for recycling.

However, in the fuel cell stack, water generated by the reaction is carried away by the hydrogen-containing mixed gas during the power generation, so that the content of water vapor in the hydrogen-containing mixed gas is high and the humidity is high. At present, a gas-water separator is generally adopted, but the existing gas-water separator mainly has the following defects:

(1) the integration degree is poor, each sensor is additionally connected with each valve through a pipeline, the length of a hydrogen gas pipeline is increased, the pressure drop generated by the hydrogen gas pipeline is increased, the internal air pressure and liquid level cannot be well detected, and when the temperature is too low, a bottom water outlet is easy to freeze and block, so that the internal water cannot be discharged;

(2) the existing gas-water separator has poor water separation effect, can not effectively separate residual hydrogen which does not participate in the reaction from water, so that a large amount of water enters a hydrogen circulating pump and a galvanic pile to generate water flooding, the power of the galvanic pile is reduced, and the working stability of a fuel cell system is influenced; some hydrogen-containing mixed gas has good water diversion effect, but the internal structure is too complex, and the resistance of the hydrogen-containing mixed gas is very large when the hydrogen-containing mixed gas passes through, so that the gas pressure at the gas outlet of the gas-water separator is greatly reduced, and the power consumption of the hydrogen circulating pump is increased.

In summary, the problem of the gas-water separator of the fuel cell has become a technical problem to be solved urgently in the industry.

The utility model has the following contents:

the utility model discloses a remedy prior art not enough, provide a gas-water separator for hydrogen system, solved the poor problem that leads to a large amount of water to get into hydrogen circulating pump and pile and produce the water logging of dividing the effect in the past, solved the problem that the resistance that the hydrogenous mist received when passing through in the past is big, the pressure drop is big.

The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted and be:

a gas-water separator for a hydrogen system comprises a shell, wherein one side of the shell is provided with a hydrogen return inlet, the bottom of the shell is divided into an upper water distribution cavity and a lower water storage cavity by a partition plate, the partition plate is provided with a plurality of through holes for communicating the water distribution cavity with the water storage cavity, the bottom of the water storage cavity is provided with a water outlet, and one side of the top of the shell is provided with a hydrogen return outlet; divide the intracavity portion to be equipped with back shape gas-water separation structure, it includes the first minute water board and the second minute water board of vertical setting to return shape gas-water separation structure, first minute water board is relative with returning hydrogen entry position, and the breakwater that the level set up is passed through to the bottom of first minute water board is connected with the casing of returning hydrogen entry downside, be equipped with water drainage tank on the breakwater, the interval sets up between the top of first minute water board and the casing, the top and the casing of second minute water board are connected, and the interval sets up between the bottom of second minute water board and the casing.

The surfaces of the first water diversion plate and the second water diversion plate are provided with a plurality of water diversion bosses.

The inner side surface of the shell is provided with a plurality of water distribution grooves.

A liquid level sensor is arranged in the shell close to the upper side of the partition plate and used for detecting the water level of the bottom in the shell.

And a pressure sensor is arranged in the shell close to the hydrogen return outlet and used for detecting the gas pressure of the hydrogen return outlet.

And a heatable drain valve is arranged at the bottom of the shell at the drain outlet and used for controlling the on-off of the drain outlet and heating the bottom of the shell to prevent the drain outlet from being frozen and blocked.

An exhaust valve is arranged on the top of the shell and used for exhausting air in the shell.

The utility model adopts the above technical scheme, have following advantage:

the square-shaped gas-water separation structure can prolong the travel distance of the hydrogen-containing mixed gas in the shell, has good water separation effect, can effectively separate hydrogen from water, avoids flooding caused by a large amount of water entering a hydrogen circulating pump and a galvanic pile, has small resistance to the hydrogen-containing mixed gas when passing through, ensures the gas pressure of a hydrogen return outlet, and reduces the power consumption of the hydrogen circulating pump;

through with pressure sensor, level sensor, the heatable drain valve, discharge valve is integrated to the casing on, moreover, the steam generator is compact in structure, moreover, the steam generator is small in size, the degree of integration is high, very big reduction the length of hydrogen gas circuit pipeline, the side has reduced the pressure drop that hydrogen gas circuit pipeline produced, pressure sensor is used for detecting the gas pressure of hydrogen return outlet, in order to guarantee that the pressure of giving vent to anger satisfies the demands, level sensor is used for detecting the water level of bottom in the casing, in time open the heatable drain valve after the water level reaches the setting value and discharge water, the heatable drain valve still can be used to prevent to the casing bottom heating that the outlet from freezing and stopping up.

Description of the drawings:

fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic diagram of the internal structure of the present invention.

In the figure, 1, a shell, 2, a hydrogen return inlet, 3, a partition plate, 4, a water distribution cavity, 5, a water storage cavity, 6, a through hole, 7, a water outlet, 8, a hydrogen return outlet, 9, a first water distribution plate, 10, a second water distribution plate, 11, a water baffle, 12, a water drainage groove, 13, a water distribution boss, 14, a water distribution groove, 15, a liquid level sensor, 16, a pressure sensor, 17, a heatable water discharge valve, 18 and an exhaust valve.

The specific implementation mode is as follows:

in order to clearly illustrate the technical features of the present invention, the present invention is explained in detail by the following embodiments in combination with the accompanying drawings.

As shown in fig. 1-2, a gas-water separator for a hydrogen system comprises a housing 1, wherein one side of the housing 1 is provided with a hydrogen return inlet 2, the bottom of the housing 1 is divided into an upper water distribution cavity 5 and a lower water storage cavity 4 by a partition plate 3, the partition plate 3 is provided with a plurality of through holes 6 for communicating the water distribution cavity 5 with the water storage cavity 4, the bottom of the water storage cavity 4 is provided with a water outlet 7, and one side of the top of the housing 1 is provided with a hydrogen return outlet 8; divide 5 inside water cavity to be equipped with back shape gas-water separation structure for water with among the hydrogenous mist separates, it includes first minute water board 9 and the second minute water board 10 of vertical setting to return shape gas-water separation structure, first minute water board 9 is relative with 2 positions in the hydrogen return entry, and breakwater 11 that the level set up is passed through to the bottom of first minute water board 9 is connected with the casing of the 2 downside in hydrogen return entry, be equipped with water drainage tank 12 on breakwater 11, the interval sets up between the top of first minute water board 9 and the casing 1, the top and the casing 1 of second minute water board 10 are connected, and the interval sets up between the bottom of second minute water board 10 and the casing 1.

The surfaces of the first water diversion plate 9 and the second water diversion plate 10 are provided with a plurality of water diversion bosses 13 to enhance the gas-water separation effect.

The inner side surface of the shell 1 is provided with a plurality of water distribution grooves 14 so as to enhance the gas-water separation effect.

A liquid level sensor 15 is installed in the housing 1 near the upper side of the partition plate 3 for detecting the water level at the bottom in the housing.

A pressure sensor 16 is installed in the housing near the hydrogen return outlet 8 for detecting the gas pressure at the hydrogen return outlet.

A heatable drain valve 17 is arranged at the bottom of the shell at the drain outlet 7 and used for controlling the on-off of the drain outlet and heating the bottom of the shell to prevent the drain outlet from being blocked by ice.

An exhaust valve 18 is installed at the top of the housing for exhausting the air inside the housing.

The working principle is as follows:

after entering the gas-water separator from the hydrogen return inlet 2, the hydrogen-containing mixed gas is firstly blocked by the first water dividing plate 9, part of the water is separated and then flows downwards from the water discharge groove 12 on the water blocking plate 11 to enter the water storage cavity 4 through the through hole 6 on the partition plate 3, the hydrogen-containing mixed gas continuously enters the cavity between the first water dividing plate 9 and the second water dividing plate 10 from the position between the top of the first water dividing plate 9 and the shell 1 to be continuously subjected to gas-water separation, then enters the cavity between the second water dividing plate 10 and the shell 1 from the position between the bottom of the second water dividing plate 10 and the shell 1, and finally is discharged from the hydrogen return outlet 8, and the pressure sensor 16 is used for detecting the gas pressure of the hydrogen return outlet 8. Establish a plurality of at 1 inboard surface of casing and divide recess 14 and establish at first minute water board 9, the gas-water separation effect can be strengthened to a plurality of branch water boss 13 on second minute water board 10 surface, and vapor in the hydrogenous mist condenses into the liquid drop and receives the action of gravity to drip downwards at the surface of first minute water board 9 and second minute water board 10, and through-hole 6 on baffle 3 gets into water storage chamber 4, discharges from outlet 7 at last, the utility model discloses store up water in water storage chamber 4, can avoid the hydrogenous mist in minute water chamber 5 and the water contact in the water storage chamber 4 to the at utmost, avoid the hydrogenous mist to outwards carry bottom water, strengthened the gas-water separation effect. No blocking is arranged in a flow channel between the first water dividing plate 9 and the shell, between the first water dividing plate 9 and the second water dividing plate 10 and between the second water dividing plate 10 and the shell, so that the gas circulation is smooth, the resistance to the passing of the hydrogen-containing mixed gas is small, the gas pressure of a hydrogen return outlet is ensured, and the power consumption of a hydrogen circulating pump is reduced. The liquid level sensor 15 is used for detecting the water level of the bottom in the shell, the heatable drain valve 17 is opened in time to drain water after the water level reaches a set value, and the heatable drain valve 17 can also be used for heating the bottom of the shell to prevent the drain outlet from being frozen and blocked.

The above-mentioned specific embodiments can not be regarded as the restriction to the scope of protection of the utility model, to technical personnel in this technical field, it is right the utility model discloses any replacement improvement or transform that embodiment made all fall within the scope of protection of the utility model.

The parts of the present invention not described in detail are known to those skilled in the art.

Claims

1. A gas-water separator for a hydrogen system, characterized in that: the hydrogen recovery device comprises a shell, wherein a hydrogen recovery inlet is formed in one side of the shell, the bottom of the shell is divided into an upper water distribution cavity and a lower water storage cavity through a partition plate, a plurality of through holes for communicating the water distribution cavity with the water storage cavity are formed in the partition plate, a water outlet is formed in the bottom of the water storage cavity, and a hydrogen recovery outlet is formed in one side of the top of the shell; divide the intracavity portion to be equipped with back shape gas-water separation structure, it includes the first division board and the second division board of vertical setting to return shape gas-water separation structure, first division board is relative with hydrogen return entry position, and the breakwater that the level set up is passed through to the bottom of first division board is connected with the casing of hydrogen return entry downside, be equipped with water drainage tank on the breakwater, the interval sets up between the top of first division board and the casing, the top and the casing connection of second division board, the interval sets up between the bottom of second division board and the casing.

2. A gas-water separator for a hydrogen system according to claim 1, characterized in that: the surfaces of the first water diversion plate and the second water diversion plate are provided with a plurality of water diversion bosses.

3. A gas-water separator for a hydrogen system according to claim 1, characterized in that: the inner side surface of the shell is provided with a plurality of water distribution grooves.

4. A gas-water separator for a hydrogen system according to claim 1, characterized in that: a liquid level sensor is arranged in the shell close to the upper side of the partition plate and used for detecting the water level of the bottom in the shell.

5. The gas-water separator for a hydrogen system according to claim 1, characterized in that: and a pressure sensor is arranged in the shell close to the hydrogen return outlet and used for detecting the gas pressure of the hydrogen return outlet.

6. A gas-water separator for a hydrogen system according to claim 1, characterized in that: and a heatable drain valve is arranged at the bottom of the shell at the drain outlet and used for controlling the on-off of the drain outlet and heating the bottom of the shell to prevent the drain outlet from being frozen and blocked.

7. A gas-water separator for a hydrogen system according to claim 1, characterized in that: an exhaust valve is arranged on the top of the shell and used for exhausting air in the shell.