CN217361667U - Reaction gas humidifying device of hydrogen fuel cell - Google Patents

Abstract

The application provides a hydrogen fuel cell reaction gas humidifying device, and belongs to the field of gas humidifying devices. This hydrogen fuel cell reaction gas humidification device includes cooling body and atomizing humidification mechanism, cooling body includes barrel, cooling tube, water pump, heat exchanger and first dog, the barrel top is provided with the water injection pipe, two be provided with the second siphunculus between the second dog, be provided with the second solenoid valve on the second siphunculus, the second dog with be formed with the atomizing chamber between the first dog, the ultrasonic humidifier is located barrel outside and output stretch into the atomizing intracavity, the gas storage chamber is located the barrel is inside and with second siphunculus bottom intercommunication, the air pump set up in the barrel is outside, the air pump input is connected with the intake pipe, the air pump output with gas storage chamber intercommunication, this hydrogen fuel cell reaction gas humidification device is convenient for add humid gas.

Description

Reaction gas humidifying device of hydrogen fuel cell

Technical Field

The application relates to the field of gas humidifying devices, in particular to a hydrogen fuel cell reaction gas humidifying device.

Background

A hydrogen fuel cell is a power generation device that directly converts chemical energy of hydrogen and oxygen into electrical energy. The basic principle is the reverse reaction of electrolyzed water, hydrogen and oxygen are supplied to the anode and cathode, respectively, hydrogen diffuses out through the anode and reacts with the electrolyte, and electrons are released to reach the cathode through an external load.

The main components of the hydrogen fuel cell include a proton membrane exchange membrane, a catalyst layer, a gas diffusion layer, a bipolar plate, etc. The proton exchange membrane is a solid polymer film, which is mainly used to isolate the molecules of two reaction gases, cathode and anode, and also to isolate electrons in the cell, and it only allows the conduction of water molecules and hydrogen ions, so it is a gas-tight film, which can only conduct hydrogen ions but not electrons. When hydrogen ions conduct in this polymer film, it must be carried by water molecules, so the higher the moisture content of the polymer film, the better the hydrogen ion conductivity. Therefore when the inside gas that lets in of hydrogen fuel cell's barrel, often need carry out humidification operation to improve the moisture content of molecular film, current humidification device often lets in water in the inside of battery barrel, cool off water again, the water after the cooling mixes with the gas that lets in, thereby accomplish the work of gas humidification, and at the in-process of cooling water, often adopt the cooling tube of inside storage cold water to cool off, and along with the lapse of time, the cold water temperature in the cooling tube risees, thereby make the inside water of adding of follow-up barrel continuously be in low temperature state. In addition, after water cooling, a humidifier is often required to be used for operation, an existing device usually adopts an electric heating humidifier, the working principle of the electric heating humidifier is that water is heated to 100 ℃ in a heating body to generate steam, and the steam is sent out by a fan, so that the temperature of the cooled water is easily increased again when the electric heating humidifier is used, the heat dissipation effect of a battery is influenced, and certain limitation is achieved.

SUMMERY OF THE UTILITY MODEL

In order to remedy the above deficiencies, the present application provides a hydrogen fuel cell reaction gas humidifying device, aiming at improving the above-mentioned problems.

The embodiment of the application provides a hydrogen fuel cell reaction gas humidifying device, which comprises a cooling mechanism and an atomization humidifying mechanism, wherein the cooling mechanism comprises a barrel, a cooling pipe, a water pump, a heat exchanger and a first stop block, the top of the barrel is provided with a water injection pipe, the cooling pipe is arranged in the barrel, the water pump, the cooling pipe and the heat exchanger are connected end to end and form a closed passage, the top of the water pump is provided with a water inlet valve, the first stop block is positioned below the water pump, the first stop block is provided with two stop blocks and is respectively fixed on two sides of the inner wall of the barrel, a first through pipe is arranged between the two first stop blocks, a first electromagnetic valve is arranged on the first through pipe, the atomization humidifying mechanism comprises a second stop block, an ultrasonic humidifier, a gas storage cavity and a gas pump, the second stop block is positioned below the first stop block, the second dog is provided with two and is fixed in respectively barrel inner wall both sides, two be provided with the second siphunculus between the second dog, be provided with the second solenoid valve on the second siphunculus, the second dog with be formed with the atomizing chamber between the first dog, the ultrasonic humidifier is located outside and the output of barrel stretch into the atomizing intracavity, the gas storage chamber is located inside the barrel and with second siphunculus bottom intercommunication, the air pump set up in the barrel is outside, the air pump input is connected with the intake pipe, the air pump output with the gas storage chamber intercommunication.

In the implementation process, the cylinder is a shell used for the hydrogen fuel cell to perform gas humidification, water is added into the cylinder through a water injection pipe, cold water is introduced into the water pump through a water inlet valve, the water pump is started to convey the cold water into the cooling pipe, the cooling pipe is a pipe body with heat conductivity, so that heat transfer occurs between heat on water in the cylinder and the cold water in the cooling pipe, and a cooling process of the water in the cylinder is completed, because the water pump, the cooling pipe and the heat exchanger are connected end to end and form a closed passage, after the temperature of the cold water in the cooling pipe rises after a period of time, the water pump is started, so that the water in the cooling pipe enters the heat exchanger, the water is in a low temperature state again through the refrigeration effect of the heat exchanger, and enters the cooling pipe again through the pressure of the water pump, so that the water in the cylinder can be in a low temperature state continuously, the water after the cooling can the downstream through the first siphunculus between two first dogs, open the first solenoid valve on the first siphunculus, make the water of downstream get into the atomizing chamber, because the ultrasonic humidifier is located the barrel outside and the output stretches into the atomizing intracavity, so the ultrasonic wave that sends through the ultrasonic humidifier output, make the water gasification in the atomizing intracavity ultramicron, later the ultramicron after the atomizing can get into the gas storage intracavity through the second siphunculus, put through external gaseous pipeline and intake pipe, start the air pump and can make external gas get into the gas storage chamber, thereby mix with the water smoke particle after the cooling in the gas storage intracavity, thereby accomplish gaseous humidification process, the gas storage after the humidification is in the gas storage intracavity, so that the battery uses.

In a specific embodiment, the atomizing intracavity portion is provided with first division board and second division board from top to bottom along vertical direction, first division board with the second division board is one end slope and sets up downwards, first division board with the second division board set up respectively in atomizing intracavity wall both sides.

In the implementation process, the first partition plate and the second partition plate enable the inner part of the atomization chamber to be partitioned into different spaces, liquid entering the atomization chamber through the first through pipe firstly passes through the upper area of the first partition plate and then enters the area between the first partition plate and the second partition plate along the inclined direction on the first partition plate, and therefore the path of the liquid flowing through the inner part of the atomization chamber is enlarged, and the time of atomizing the liquid by the ultrasonic humidifier is prolonged.

In a specific embodiment, the ultrasonic humidifier be provided with two and set up respectively in the barrel both sides, one the ultrasonic humidifier output stretches into the gas storage intracavity portion just is located first division board top, another the ultrasonic humidifier output stretches into the gas storage intracavity portion just is located second division board top, the ultrasonic humidifier output is connected with the transmission house steward, the transmission house steward intercommunication has the transmission to be in charge of.

In the implementation process, the positions of the ultrasonic humidifiers are arranged, so that water in different areas in the atomization chamber can be atomized at the same time.

In a specific embodiment, the launching branched pipes are provided with a plurality of launching branched pipes which are distributed on one side of the launching header pipe at equal intervals.

In the implementation process, the plurality of transmitting branch pipes are arranged at equal intervals, so that the range of transmitting ultrasonic waves on one side of the transmitting main pipe is expanded.

In a specific implementation scheme, the bottom of the second through pipe is communicated with a liquid supply main pipe located in the gas storage cavity, the bottom of the liquid supply main pipe is provided with liquid supply branch pipes, the liquid supply branch pipes are provided with a plurality of liquid supply branch pipes, and the liquid supply branch pipes are uniformly distributed at the bottom of the liquid supply main pipe.

In the implementation process, atomized water enters the liquid supply main pipe through the second through pipe and finally enters the gas storage cavity through the liquid supply branch pipes, and the liquid supply branch pipes are uniformly distributed through the plurality of liquid supply branch pipes, so that the liquid outlet range at the bottom of the liquid supply main pipe is enlarged.

In a specific embodiment, the top of the air storage cavity is communicated with an air exhaust valve extending out of the cylinder body.

In the implementation process, the exhaust valve is arranged so as to exhaust redundant gas in the gas storage cavity.

In a specific embodiment, a pipe cover is screwed on the top of the outer wall of the water injection pipe.

In the above implementation process, after water is added into the cylinder body through the water injection pipe, the pipe cover is rotated to enable the screw thread to be sleeved on the water injection pipe, so that external dust or heat is prevented from entering the inside of the cylinder body.

In a specific embodiment, a humidity sensor is arranged inside the gas storage cavity, a controller is arranged outside the cylinder, the input end of the controller is electrically connected with the humidity sensor, and the output end of the controller is electrically connected with the heat exchanger.

In the implementation process, the humidity sensor is used for detecting the humidity in the air storage cavity, when the humidity in the air storage cavity is higher, the input end of the controller receives a signal transmitted by the humidity sensor and controls the heat exchanger to reduce power, so that the degree of cooling water in the cooling pipe when entering the heat exchanger is reduced.

In a particular embodiment, the cooling tube has a serpentine shape inside the cylinder.

In the implementation process, the cooling pipe is arranged in a circuitous and bent shape to increase the length occupied by the cooling pipe in the cylinder body, so that the water added in the cylinder body can be sufficiently cooled.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some examples of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also derive other related drawings based on these drawings without inventive effort.

Fig. 1 is a schematic structural view of a reaction gas humidifying device of a hydrogen fuel cell according to an embodiment of the present application;

FIG. 2 is a front cross-sectional view of a cartridge provided in an embodiment of the present application;

FIG. 3 is an enlarged view of A in FIG. 2 provided by an embodiment of the present application;

fig. 4 is a schematic structural diagram of the interior of the gas storage cavity according to the embodiment of the present application.

In the figure: 100-a cooling mechanism; 110-a cylinder; 111-a water injection pipe; 112-a controller; 120-a cooling tube; 130-a water pump; 131-a water inlet valve; 140-a heat exchanger; 150-a first stop; 151-first through tube; 200-an atomization humidification mechanism; 210-a second stop; 211-second tube; 212-an aerosolizing chamber; 213-a first divider plate; 214-a second separator plate; 215-liquid supply manifold; 216-liquid supply branch pipe; 220-ultrasonic humidifier; 221-emission manifold; 222-emission branch pipe; 230-a gas storage cavity; 231-an exhaust valve; 232-humidity sensor; 240-air pump; 241-air inlet pipe.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.

Referring to fig. 1-4, the present application provides a hydrogen fuel cell reaction gas humidifying device, which includes a cooling mechanism 100 and an atomizing and humidifying mechanism 200, the cooling mechanism 100 includes a barrel 110, a cooling pipe 120, a water pump 130, a heat exchanger 140 and a first stopper 150, the top of the barrel 110 is provided with a water injection pipe 111, the cooling pipe 120 is disposed inside the barrel 110, the water pump 130, the cooling pipe 120 and the heat exchanger 140 are connected end to end and form a closed passage, the top of the water pump 130 is provided with a water inlet valve 131, the first stopper 150 is located below the water pump 130, the first stopper 150 is provided with two first through pipes 151 respectively fixed on two sides of the inner wall of the barrel 110, the first through pipe 151 is provided with a first electromagnetic valve, the atomizing and humidifying mechanism 200 includes a second stopper 210, an ultrasonic humidifier 220, a gas storage chamber 230 and a gas pump 240, the second stopper 210 is located below the first stopper 150, the second stopper 210 is provided with two and is fixed in barrel 110 inner wall both sides respectively, be provided with second siphunculus 211 between two second stoppers 210, be provided with the second solenoid valve on the second siphunculus 211, be formed with atomizing chamber 212 between second stopper 210 and the first stopper 150, ultrasonic humidifier 220 is located barrel 110 outside and the output stretches into atomizing chamber 212, gas storage chamber 230 is located barrel 110 inside and with second siphunculus 211 bottom intercommunication, air pump 240 sets up in barrel 110 outside, the air pump 240 input is connected with intake pipe 241, the air pump 240 output communicates with gas storage chamber 230.

In some specific embodiments, a first partition plate 213 and a second partition plate 214 are disposed inside the atomization chamber 212 and from top to bottom along a vertical direction, the first partition plate 213 and the second partition plate 214 are both disposed with one end inclined downward, the first partition plate 213 and the second partition plate 214 are respectively disposed on two sides of an inner wall of the atomization chamber 212, the first partition plate 213 and the second partition plate 214 partition the inside of the atomization chamber 212 into different spaces, and the liquid entering the atomization chamber 212 through the first pipe 151 first passes through an upper region of the first partition plate 213 and then enters a region between the first partition plate 213 and the second partition plate 214 along an inclined direction on the first partition plate 213, so as to enlarge a path through which the liquid flows inside the atomization chamber 212, so as to increase a time for the ultrasonic humidifier 220 to atomize the liquid.

In some specific embodiments, two ultrasonic humidifiers 220 are disposed on two sides of the barrel 110, respectively, an output end of one ultrasonic humidifier 220 extends into the gas storage chamber 230 and is located above the first partition plate 213, an output end of the other ultrasonic humidifier 220 extends into the gas storage chamber 230 and is located above the second partition plate 214, an output end of the ultrasonic humidifier 220 is connected to the emission main pipe 221, the emission main pipe 221 is communicated with the emission branch pipe 222, and water in different areas inside the atomization chamber 212 is atomized through the arrangement of the positions of the ultrasonic humidifiers 220.

In some embodiments, the plurality of emission branched pipes 222 are provided, and the plurality of emission branched pipes 222 are equidistantly distributed on one side of the emission main pipe 221, so as to expand the range of the emitted ultrasonic waves on one side of the emission main pipe 221.

In some specific embodiments, the bottom of the second pipe 211 is communicated with a liquid supply main 215 located inside the gas storage chamber 230, the bottom of the liquid supply main 215 is provided with a plurality of liquid supply branch pipes 216, the plurality of liquid supply branch pipes 216 are uniformly distributed at the bottom of the liquid supply main 215, the atomized water enters the liquid supply main 215 through the second pipe 211 and finally enters the gas storage chamber 230 through the liquid supply branch pipes 216, and the liquid outlet range at the bottom of the liquid supply main 215 is expanded through the arrangement that the plurality of liquid supply branch pipes 216 are uniformly distributed.

In some embodiments, the top of the gas storage chamber 230 is connected to a gas discharge valve 231 extending out of the cylinder 110, and the gas discharge valve 231 is disposed to discharge excess gas inside the gas storage chamber 230.

In some embodiments, a cap is screwed to the top of the outer wall of the water injection pipe 111, and after water is introduced into the barrel 110 through the water injection pipe 111, the cap is screwed to be screwed into the water injection pipe 111, thereby preventing external dust or heat from entering the barrel 110.

In some specific embodiments, a humidity sensor 232 is disposed inside the air storage chamber 230, a controller 112 is disposed outside the cylinder 110, an input end of the controller 112 is electrically connected to the humidity sensor 232, an output end of the controller 112 is electrically connected to the heat exchanger 140, the humidity sensor 232 is configured to detect the humidity inside the air storage chamber 230, when the humidity inside the air storage chamber 230 is high, the input end of the controller 112 receives a signal transmitted by the humidity sensor 232 and controls the heat exchanger 140 to reduce power, so as to reduce the degree of cooling water inside the cooling pipe 120 when entering the heat exchanger 140.

In some specific embodiments, the cooling pipe 120 has a meander shape inside the drum 110, and the meander shape is arranged by the cooling pipe 120 to increase the length occupied by the cooling pipe 120 inside the drum 110, so as to sufficiently cool the water added into the drum 110.

The operating principle of the reaction gas humidifying device of the hydrogen fuel cell is as follows: the cylinder 110 is a shell used for the hydrogen fuel cell to perform gas humidification, water is added into the cylinder 110 through a water injection pipe 111, cold water is introduced into a water pump 130 through a water inlet valve 131, the water pump 130 is started, so that the cold water is conveyed into a cooling pipe 120, the cooling pipe 120 is a pipe body with heat conductivity, so that heat transfer occurs between heat on water in the cylinder 110 and the cold water in the cooling pipe 120, and a cooling process of the water in the cylinder 110 is completed, because the water pump 130, the cooling pipe 120 and the heat exchanger 140 are connected end to end and form a closed passage, after the temperature of the cold water in the cooling pipe 120 rises after a period of time, the water in the cooling pipe 120 is started, so that the water in the cooling pipe 120 enters the heat exchanger 140, is in a low temperature state again through the refrigeration effect of the heat exchanger 140, and enters the cooling pipe 120 again through the pressure of the water pump 130, so that the water in the cylinder 110 can be continuously in a low temperature state, the cooled water can move downwards through the first through pipe 151 between the two first stoppers 150, the first electromagnetic valve on the first through pipe 151 is opened, so that the water moving downwards enters the atomizing chamber 212, because the ultrasonic humidifier 220 is located outside the barrel 110 and the output end extends into the nebulizing chamber 212, therefore, the water in the atomizing chamber 212 is atomized into ultra-fine particles by the ultrasonic waves emitted from the output end of the ultrasonic humidifier 220, the atomized ultra-fine particles can enter the gas storage chamber 230 through the second pipe 211, the pipeline of the external gas is connected with the gas inlet pipe 241, the gas pump 240 is started to enable the external gas to enter the gas storage chamber 230, thereby mixing with the cooled water mist particles in the gas storage chamber 230 to complete the humidifying process of the gas, and the humidified gas is stored in the gas storage chamber 230 for the use of the battery.

It should be noted that the specific model specifications of the controller 112, the water pump 130, the heat exchanger 140, the ultrasonic humidifier 220, the exhaust valve 231, the humidity sensor 232, and the air pump 240 need to be determined by type selection according to the actual specification of the device, and the specific type selection calculation method adopts the prior art in the field, so detailed description is omitted.

The power supply and the principle of the controller 112, the water pump 130, the heat exchanger 140, the ultrasonic humidifier 220, the exhaust valve 231, the humidity sensor 232 and the air pump 240 are well known to those skilled in the art and will not be described in detail herein.

The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. A reaction gas humidifying device for a hydrogen fuel cell is characterized by comprising

The cooling device comprises a cooling mechanism (100), wherein the cooling mechanism (100) comprises a cylinder (110), a cooling pipe (120), a water pump (130), a heat exchanger (140) and a first stop block (150), a water injection pipe (111) is arranged at the top of the cylinder (110), the cooling pipe (120) is arranged in the cylinder (110), the water pump (130), the cooling pipe (120) and the heat exchanger (140) are connected end to form a closed passage, a water inlet valve (131) is arranged at the top of the water pump (130), the first stop block (150) is positioned below the water pump (130), the first stop block (150) is provided with two first through pipes (151) which are respectively fixed at two sides of the inner wall of the cylinder (110), and a first electromagnetic valve is arranged on each first through pipe (151);

the atomizing and humidifying mechanism (200) comprises a second stop block (210), an ultrasonic humidifier (220), a gas storage chamber (230) and an air pump (240), wherein the second stop block (210) is positioned below the first stop block (150), the second stop block (210) is provided with two parts which are respectively fixed on two sides of the inner wall of the barrel body (110), a second through pipe (211) is arranged between the two second stop blocks (210), a second electromagnetic valve is arranged on the second through pipe (211), an atomizing chamber (212) is formed between the second stop block (210) and the first stop block (150), the ultrasonic humidifier (220) is positioned outside the barrel body (110) and the output end of the ultrasonic humidifier extends into the atomizing chamber (212), the gas storage chamber (230) is positioned inside the barrel body (110) and communicated with the bottom of the second through pipe (211), and the air pump (240) is arranged outside the barrel body (110), the input end of the air pump (240) is connected with an air inlet pipe (241), and the output end of the air pump (240) is communicated with the air storage cavity (230).

2. The humidification device for reactant gas of hydrogen fuel cell according to claim 1, wherein a first partition plate (213) and a second partition plate (214) are disposed inside the atomization chamber (212) from top to bottom along a vertical direction, the first partition plate (213) and the second partition plate (214) are both disposed with one end inclined downward, and the first partition plate (213) and the second partition plate (214) are respectively disposed on two sides of an inner wall of the atomization chamber (212).

3. The device for humidifying the reaction gas of the hydrogen fuel cell according to claim 2, wherein two ultrasonic humidifiers (220) are respectively arranged at two sides of the cylinder (110), one output end of the ultrasonic humidifier (220) extends into the gas storage chamber (230) and is located above the first partition plate (213), the other output end of the ultrasonic humidifier (220) extends into the gas storage chamber (230) and is located above the second partition plate (214), the output end of the ultrasonic humidifier (220) is connected with an emission header pipe (221), and the emission header pipe (221) is communicated with the emission branch pipe (222).

4. A hydrogen fuel cell reaction gas humidification device as claimed in claim 3 wherein the emission branched pipe (222) is provided in plurality, and a plurality of the emission branched pipes (222) are equally distributed on one side of the emission header pipe (221).

5. The humidification device for the reaction gas of the hydrogen fuel cell as recited in claim 1, wherein a liquid supply header pipe (215) located inside the gas storage chamber (230) is communicated with the bottom of the second through pipe (211), and a liquid supply branch pipe (216) is arranged at the bottom of the liquid supply header pipe (215).

6. A humidification device for reaction gas of hydrogen fuel cell according to claim 5 wherein said liquid supply branch pipe (216) is provided in plurality, and said plurality of liquid supply branch pipes (216) are uniformly distributed at the bottom of said liquid supply header pipe (215).

7. A hydrogen fuel cell reaction gas humidification device as claimed in claim 5 wherein the top of the gas storage chamber (230) is connected to a gas exhaust valve (231) extending out of the cylinder (110).

8. A hydrogen fuel cell reaction gas humidification device as claimed in claim 1 wherein a cap is screwed on top of the outer wall of the water injection pipe (111).

9. A humidification device for reactant gas of hydrogen fuel cell according to claim 1 wherein a humidity sensor (232) is disposed inside the gas storage chamber (230), a controller (112) is disposed outside the cylinder (110), an input end of the controller (112) is electrically connected to the humidity sensor (232), and an output end of the controller (112) is electrically connected to the heat exchanger (140).

10. A hydrogen fuel cell reaction gas humidification device as claimed in claim 1 wherein the cooling tube (120) is serpentine inside the cylinder (110).

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