CN212025475U - Movable water electrolysis hydrogen production hydrogenation device - Google Patents
Movable water electrolysis hydrogen production hydrogenation device Download PDFInfo
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- CN212025475U CN212025475U CN202020301650.0U CN202020301650U CN212025475U CN 212025475 U CN212025475 U CN 212025475U CN 202020301650 U CN202020301650 U CN 202020301650U CN 212025475 U CN212025475 U CN 212025475U
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Abstract
The application provides a mobile water electrolysis hydrogen production hydrogenation device, which comprises a frame, wherein the bottom of the frame is provided with a wheel set; a proton exchange membrane electrolyzer; the circulating pump is connected with the proton exchange membrane electrolytic cell; the water-gas separation component comprises a hydrogen-water separator and an oxygen-water separator, the hydrogen-water separator is connected with the proton exchange membrane electrolytic cell, and oxygen water is supplied to the proton exchange membrane electrolytic cellThe separator is connected with the proton exchange membrane electrolytic cell and the circulating pump, and the oxygen-water separator is provided with a water replenishing port for connecting a water replenishing pump; and the control assembly comprises a controller and two backpressure valves, and the two backpressure valves are respectively connected to a hydrogen outlet of the hydrogen water separator and an oxygen outlet of the oxygen water separator. The movable hydrogen production and hydrogenation device by water electrolysis adopts the proton exchange membrane electrolytic cell, and the reactant of the proton exchange membrane electrolytic cell is pure water, so that the working current density range is large and is 0A/cm2～3A/cm2And the volume is smaller, thereby solving the problems of small working current density range, large volume and the need of adding alkali liquor of the alkaline water electrolysis hydrogen production device.
Description
Technical Field
The application belongs to the technical field of hydrogen production equipment, and particularly relates to a mobile water electrolysis hydrogen production hydrogenation device.
Background
With the increasing severity of energy problems and environmental problems, hydrogen energy has become an important development direction in our country as the cleanest secondary energy. At the present stage, 60% of hydrogen in China is mainly prepared by fossil energy, and although the production cost is low, the method can cause a large amount of pollution to the environment and is accompanied with a large amount of carbon emission. The water electrolysis hydrogen production is a technology for directly converting electric energy into hydrogen energy, has high conversion efficiency, no pollution and no carbon emission, and is a key development direction of new energy in the future. Because the development of the hydrogen fuel cell industry is rapid at present, no matter the hydrogen fuel cell car, hydrogen fuel cell unmanned aerial vehicle and hydrogen fuel cell power generation facility, all need use a large amount of hydrogen in the process from research and development to application, this has also improved the market to the demand of miniaturization, portable water electrolysis hydrogen plant.
Most of water electrolysis hydrogen production devices in the current market are alkaline water electrolysis hydrogen production devices, the alkaline water electrolysis technology starts earlier, the current technology is mature, the cost is lower, and the maximum hydrogen production is achievedThe power can reach megawatt level. However, since the alkaline water electrolysis technology uses a diaphragm structure to separate hydrogen and oxygen, in order to prevent the mixing of gases, the alkaline water electrolysis apparatus can only operate within a certain current density range, and the operating current density range is mostly 0.2A/cm2～0.5A/cm2The volume of the alkaline water electrolysis device needs to be increased to improve the yield of hydrogen; at the same time, the diaphragm structure also leads to a lower output pressure (< 2MPa) of the alkaline water electrolysis plant. The alkaline electrolysis technology uses alkaline liquor as electrolyte, which also causes that the electrolyte needs to be replaced periodically, and the operation flow is complicated.
SUMMERY OF THE UTILITY MODEL
The application aims to provide a mobile hydrogen production and hydrogenation device by water electrolysis, which comprises but is not limited to solving the technical problems that the alkaline water electrolysis hydrogen production device is small in working current density range, large in volume and needs to be added with alkali liquor.
In order to achieve the above object, an embodiment of the present application provides a mobile hydrogen production and hydrogenation apparatus by water electrolysis, including:
the device comprises a rack, wherein a wheel set is arranged at the bottom of the rack;
the proton exchange membrane electrolytic cell is arranged inside the frame;
the circulating pump is arranged inside the frame and is connected with a water inlet of the proton exchange membrane electrolytic cell;
the water-gas separation component is arranged inside the rack and comprises a hydrogen water separator and an oxygen water separator, the hydrogen water separator is connected with a hydrogen outlet of the proton exchange membrane electrolytic cell, the oxygen water separator is connected with an oxygen outlet of the proton exchange membrane electrolytic cell and a water inlet of the circulating pump, and the oxygen water separator is provided with a water replenishing port for connecting a water replenishing pump; and
control module locates in the frame, control module includes controller and two back pressure valves, the controller is used for control proton exchange membrane electrolysis cell the circulating pump hydrogen water separator with oxygen water separator operates according to the instruction, one of them back pressure valve connect in hydrogen water separator's hydrogen export, the other one back pressure valve connect in oxygen water separator's oxygen export.
Optionally, the mobile hydrogen production and hydrogenation device by water electrolysis further comprises:
the exhaust subassembly is located in the frame, and be controlled by the controller, the exhaust subassembly includes the booster pump, the booster pump passes through the backpressure valve with hydrogen water separator connects.
Optionally, the exhaust assembly further comprises:
the desicator is located the inside of frame, the desicator with hydrogen water separator connects, just the desicator passes through the back pressure valve with the booster pump is connected.
Optionally, the exhaust assembly further comprises:
and the hydrogen concentration detector is connected between the dryer and the booster pump.
Furthermore, the proton exchange membrane electrolytic cell comprises a plurality of groups of single electrolytic cells which are arranged in a stacked mode, each single electrolytic cell is of a flat plate structure, and each single electrolytic cell is composed of a single cell frame, a proton exchange membrane, an anode porous plate, an anode flow field plate, a cathode porous plate, a cathode flow field plate and a sealing ring.
Further, the hydrogen water separator includes:
the first water tank is connected with the proton exchange membrane electrolytic cell; and
the first heat exchanger is arranged in the first water tank and is used for being connected with a constant temperature water machine to realize heat exchange;
the oxygen-water separator includes:
the second water tank is connected with the first water tank, the proton exchange membrane electrolytic cell and the circulating pump, and the water replenishing port is arranged on the second water tank; and
and the second heat exchanger is arranged in the second water tank and is used for being connected with a constant temperature water machine to realize heat exchange.
Optionally, the mobile hydrogen production and hydrogenation device by water electrolysis further comprises:
a water purification assembly disposed inside the housing and controlled by the controller, the water purification assembly including a water purifier connected between the oxygen-water separator and the circulation pump.
Optionally, the water purification assembly further comprises:
a bubble detector connected between the water purifier and the circulation pump.
Optionally, the mobile hydrogen production and hydrogenation device by water electrolysis further comprises:
and the water replenishing pump is arranged on the rack, is connected with a water replenishing port of the oxygen-water separator and is controlled by the controller.
Furthermore, the control assembly also comprises a constant current power supply, a display screen, a control switch and an instrument.
The application provides a portable water electrolysis hydrogen production hydrogenation unit's beneficial effect lies in:
the water electrolysis technology of the proton exchange membrane has a large working current density range of 0A/cm2～3A/cm2Moreover, because the proton exchange membrane is low in thickness and high in mechanical strength, the whole proton exchange membrane electrolytic cell is compact in structure, so that the proton exchange membrane electrolytic cell can work under the conditions of high gas pressure and different hydrogen-oxygen pressure differences (hydrogen high pressure and oxygen low pressure), and the mobile water electrolysis hydrogen production hydrogenation device has a higher gas output pressure range of 0.1-3 MPa;
secondly, because the proton exchange membrane electrolytic cell uses pure water as a reactant, alkali liquor is not needed to be used as electrolyte;
the volume of the proton exchange membrane electrolytic cell is one fifth of that of the alkaline water electrolytic cell under the condition of the same hydrogen yield, so that the mobile water electrolysis hydrogen production and hydrogenation device has the characteristics of smaller volume, lighter weight, miniaturization and flexible movement;
fourthly, the proton exchange membrane electrolytic cell has higher gas purity and safety compared with an alkaline water electrolytic cell because of the characteristic of low cross permeability of the proton exchange membrane;
and fifthly, the proton exchange membrane electrolytic cell can generate higher gas pressure, so that the gas is discharged from the electrode, the electrolytic efficiency is improved, and meanwhile, on the premise of meeting the requirement of gas output pressure, the mobile water electrolysis hydrogen production hydrogenation device can reduce the cost of a gas boosting assembly added subsequently.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a schematic perspective view of a mobile hydrogen production and hydrogenation apparatus by water electrolysis according to an embodiment of the present application;
FIG. 2 is a schematic perspective view of another angle of the mobile hydrogen production and hydrogenation apparatus by water electrolysis according to the embodiment of the present application;
FIG. 3 is a schematic rear view of a mobile hydrogen production and hydrogenation apparatus by water electrolysis according to an embodiment of the present application;
fig. 4 is a block diagram of a mobile hydrogen production and hydrogenation apparatus by water electrolysis according to an embodiment of the present application.
Wherein, in the figures, the respective reference numerals:
the device comprises a 1-movable water electrolysis hydrogen production hydrogenation device, a 10-frame, a 20-proton exchange membrane electrolytic cell, a 30-circulating pump, a 70-water purification component, an 80-water make-up pump, a 41-hydrogen water separator, a 42-oxygen water separator, a 51-controller, a 52-backpressure valve, a 53-constant current power supply, a 54-display screen, a 55-control switch, a 56-instrument, a 61-booster pump, a 62-dryer, a 100-wheel set and a 610-high pressure outlet.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected" to another element, it can be directly or indirectly connected to the other element. When a component is referred to as being "electrically connected" to another component, it can be electrically connected by conductors, or can be electrically connected by radios, or can be connected by various other means capable of carrying electrical signals. The terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and operate, and thus are not to be construed as limiting the patent, and the specific meanings of the above terms will be understood by those skilled in the art according to specific situations. The terms "first", "second" and "first" are used merely for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "plurality" is two or more unless specifically limited otherwise.
Referring to fig. 1 to 3, the present application provides a mobile hydrogen production and hydrogenation apparatus 1 by water electrolysis, which includes a frame 10, a proton exchange membrane electrolytic cell 20, a circulation pump 30, a water-gas separation assembly 40 and a control assembly, wherein the bottom of the frame 10 is provided with a wheel set 100; the proton exchange membrane electrolyzer 20 is arranged inside the frame 10; the circulating pump 30 is arranged inside the frame 10, and the circulating pump 30 is connected with the water inlet of the proton exchange membrane electrolytic bath 20 to provide pure water for the proton exchange membrane electrolytic bath 20; the water-gas separation component is arranged inside the frame 10, where the water-gas separation component comprises a hydrogen water separator 41 and an oxygen water separator 42, the hydrogen water separator 41 is connected with the hydrogen outlet of the proton exchange membrane electrolyzer 20, i.e. the steam inlet of the hydrogen water separator 41 is connected with the hydrogen outlet of the proton exchange membrane electrolyzer 20, the oxygen water separator 42 is connected with the oxygen outlet of the proton exchange membrane electrolyzer 20 and the water inlet of the circulating pump 30, i.e. the steam inlet of the oxygen water separator 42 is connected with the oxygen outlet of the proton exchange membrane electrolyzer 20, the water outlet of the oxygen water separator 42 is connected with the water inlet of the circulating pump 30, and the oxygen water separator 42 has a water replenishing port for a water replenishing pump; a control assembly is provided on the frame 10, where the control assembly includes a controller 51 and two backpressure valves 52, the controller 51 is used for controlling the proton exchange membrane electrolytic cell 20, the circulation pump 30, the hydrogen water separator 41 and the oxygen water separator 42 to operate according to instructions, one backpressure valve 52 is connected to the hydrogen outlet of the hydrogen water separator 41, and the other backpressure valve 52 is connected to the oxygen outlet of the oxygen water separator 42. It is understood that the proton exchange membrane electrolyzer 20, the circulation pump 30, the hydrogen water separator 41, the oxygen water separator 42 and the back pressure valve 52 are connected by pipes, and a check cut-off valve is connected between the hydrogen water separator 41 and the oxygen water separator 42, which is not opened at ordinary times, and is opened when the water level in the hydrogen water separator 41 increases.
Specifically, the wheel set 100 may include at least three universal wheels and/or rollers, which are distributed in a non-linear manner and are used to support the frame 10 and assist the mobile hydrogen production and hydrogenation apparatus 1 for water electrolysis to move as a whole;
the Proton Exchange Membrane electrolyzer 20 includes a plurality of single electrolytic cells, each single electrolytic cell is of a flat plate structure, the plurality of single electrolytic cells are stacked, and each single electrolytic cell is composed of a single cell frame, a Proton Exchange Membrane (PEM), an anode porous plate, an anode flow field plate, a cathode porous plate, a cathode flow field plate, and a sealing ring, wherein the single cell frame, the Proton Exchange Membrane, the anode porous plate, the anode flow field plate, the cathode porous plate, the cathode flow field plate, and the sealing ring are combined in a conventional connection manner, which is not described herein again, due to the adoption of the multi-layer single electrolytic cell structure, the hydrogen production yield of the Proton Exchange Membrane electrolyzer 20 is higher, the hydrogen production efficiency of the whole device is higher, in addition, the gas pressure at the anode of the Proton Exchange Membrane electrolyzer 20 is kept at a low pressure relative to the cathode, and the gas pressure at the cathode is kept at a high pressure relative to the, hydrogen is generated at the cathode, and oxygen is generated at the anode), so that the design can reduce the energy loss in the water circulation process, and can improve the safety of the mobile water electrolysis hydrogen production hydrogenation device 1 by reducing the pressure of the oxygen;
the hydrogen water separator 41 comprises a first heat exchanger and a first water tank, wherein the first heat exchanger is arranged inside the first water tank and is used for being connected with a constant temperature water machine to realize heat exchange, the first water tank is connected with the proton exchange membrane electrolytic cell 20, namely, a steam inlet of the first water tank is connected with a hydrogen outlet of the proton exchange membrane electrolytic cell 20, and a gas outlet of the first water tank is connected with a hydrogen outlet through a backpressure valve 52; the oxygen-water separator 42 comprises a second heat exchanger and a second water tank, wherein the second heat exchanger is arranged inside the second water tank and is used for being connected with a constant temperature water machine to realize heat exchange, the second water tank is connected with the first water tank, the proton exchange membrane electrolytic cell 20 and the circulating pump 30, namely, a first water inlet of the second water tank is connected with a water outlet of the first water tank through a pipeline and a one-way stop valve, a steam inlet of the second water tank is connected with an oxygen outlet of the proton exchange membrane electrolytic cell 20, a water outlet of the second water tank is connected with a water inlet of the circulating pump 30, the water replenishing port is arranged on the second water tank, namely, the water replenishing port is a second water inlet of the second water tank, and a gas outlet of the second water tank is connected with an oxygen outlet through a back pressure valve;
the controller 51 is preferably a Programmable Logic Controller (PLC) including an electrolysis control module, a power supply control module, a signal receiving module, a storage module, etc., and the controller 51 is electrically connected with the proton exchange membrane electrolyzer 20, the circulating pump 30, the first heat exchanger, the second heat exchanger, etc., the control assembly further includes a constant current power supply 53, a display screen 54, a control switch 55, a meter 56, etc., wherein the constant current power supply 53 is used for converting the power electricity into a constant current for the proton exchange membrane electrolyzer 20, the circulating pump 30, the first heat exchanger, the second heat exchanger, the controller 51, the display screen 54, etc., the display screen 54 is electrically connected with the controller 51 and is used for displaying the operation data of the water electrolysis mobile hydrogen production and hydrogenation device 1 for the user to know the operation state of the mobile water electrolysis hydrogen production and hydrogenation device 1 in real time, and the control switch 55 is electrically connected with the controller 51, the device is used for controlling the opening and closing of each operation step of the mobile water electrolysis hydrogen production and hydrogenation device 1, and the instrument 56 is used for displaying the pressure data in the proton exchange membrane electrolytic cell 20, the first heat exchanger, the second heat exchanger, the pipeline and the like.
When the mobile water electrolysis hydrogen production hydrogenation device 1 is used for producing hydrogen, firstly, the water level of pure water in the second water tank is checked to meet the requirement of electrolysis water, and if the water level does not meet the requirement of electrolysis water, the pure water needs to be supplemented through a water supplementing port; then, rotating the two back pressure valves 52, respectively adjusting the oxygen exhaust pressure and the hydrogen exhaust pressure, and locking the two back pressure valves 52 after the pressure ranges of the two back pressure valves are 0-5 MPa; then, the constant current source 53 is turned on, and the display screen 54 and the meter 56 are checked to confirm that the controller 51 is in a standby state, and the electrolytic current and electrolytic voltage are set through the display screen 54; then the proton exchange membrane electrolytic cell 20 and the circulating pump 30 are started through the control switch 55; then the proton exchange membrane electrolytic cell 20 is electrified, electrolysis starts, oxygen overflows from the anode, and hydrogen overflows from the cathode; then, as the pressure of the overflowed gas increases, after reaching the set value of the backpressure valve 52, the backpressure valve 52 is opened, hydrogen and oxygen are respectively discharged from different pipelines, when the pressure value is lower than 10% of the set value, the backpressure valve 52 is automatically closed, the gas continues to accumulate in the hydrogen water separator 41 and the oxygen water separator 42, and after the gas accumulates to the set pressure, the previous cycle is repeated; during the electrolysis, the controller 51 continuously determines whether or not pure water needs to be replenished by a computer program and digital capacitors or differential pressure level meters installed in the hydrogen water separator 41 and the oxygen water separator 42.
Compared with the existing alkaline water electrolysis hydrogen production device, the mobile water electrolysis hydrogen production hydrogenation device 1 provided by the embodiment of the application has the following advantages:
the water electrolysis technology of the proton exchange membrane has a large working current density range of 0A/cm2～3A/cm2Moreover, because the proton exchange membrane has low thickness and high mechanical strength, the whole proton exchange membrane electrolytic cell 20 has a very compact structure, so that the proton exchange membrane electrolytic cell 20 can work under the conditions of high gas pressure and different hydrogen-oxygen pressure differences (hydrogen high pressure and oxygen low pressure), and the mobile water electrolysis hydrogen production hydrogenation device 1 has a higher gas output pressure range of 0.1-3 MPa;
secondly, because the proton exchange membrane electrolytic cell 20 uses pure water as a reactant, alkali liquor is not needed to be used as electrolyte;
thirdly, as alkali liquor control and supply components are not needed, and the volume of the proton exchange membrane electrolytic cell 20 is one fifth of that of the alkali liquor electrolytic cell under the condition of the same hydrogen yield, the mobile water electrolysis hydrogen production and hydrogenation device 1 has the characteristics of smaller volume, lighter weight, miniaturization and flexible movement;
fourthly, the proton exchange membrane electrolytic cell 20 has higher gas purity and safety compared with an alkaline water electrolytic cell because the proton exchange membrane has the characteristic of low cross permeability;
fifthly, as the proton exchange membrane electrolytic cell 20 can generate higher gas pressure, the discharge of gas from the electrodes is facilitated, the electrolysis efficiency is improved, and meanwhile, on the premise of meeting the requirement of gas output pressure, the cost of a gas boosting component added subsequently can be reduced by the mobile water electrolysis hydrogen production hydrogenation device 1.
Further, referring to fig. 2, as an embodiment of the mobile hydrogen production and hydrogenation apparatus by water electrolysis provided by the present application, the mobile hydrogen production and hydrogenation apparatus by water electrolysis 1 further includes an exhaust assembly, the exhaust assembly is disposed on the frame 10 and is controlled by the controller 51, where the exhaust assembly includes a pressure increasing pump 61, the pressure increasing pump 61 is connected to the hydrogen water separator 41 through the backpressure valve 52, that is, the backpressure valve 52 connects an air inlet of the pressure increasing pump 61 and a hydrogen outlet of the hydrogen water separator 41, and the high pressure outlet 610 of the pressure increasing pump 61 is a hydrogen outlet. Therefore, the output pressure of the hydrogen can be increased from 3MPa to 40MPa under the driving of the booster pump 61, the hydrogen can be directly provided for a hydrogen fuel cell automobile, a hydrogen fuel cell unmanned aerial vehicle, a hydrogen fuel cell power generation device and the like, the storage step of the hydrogen is omitted, and the field hydrogenation is realized.
Further, referring to fig. 1 to fig. 3, as an embodiment of the mobile hydrogen production and hydrogenation apparatus by water electrolysis provided by the present application, the exhaust assembly further includes a dryer 62, the dryer 62 is disposed inside the frame 10, the dryer 62 is connected to the hydrogen water separator 41, and the dryer 62 is connected to the boost pump 61 through the backpressure valve 52, that is, the hydrogen separated from the hydrogen water separator 41 needs to pass through the dryer 62 and the backpressure valve 52 in sequence and then enter the boost pump 61. Air and steam that probably exist in the hydrogen that can output hydrogen water separator 41 through desicator 62 like this are cleared away for hydrogen further purifies, have satisfied the demand of user to high-purity hydrogen, reduce the risk of steam to erosion such as back pressure valve 52, booster pump 61 and pipeline effectively, have prolonged portable water electrolysis hydrogen manufacturing hydrogenation unit 1's life. Of course, in other embodiments of the present application, another dryer 62 may be additionally provided inside the housing 10 according to the user's needs, and the additional dryer 62 is connected to the oxygen-water separator 42 and the back pressure valve 52 for controlling the purity of the oxygen discharge and preventing the condensation of the oxygen discharge pipe.
Further, as an embodiment of the mobile hydrogen production and hydrogenation apparatus by water electrolysis provided by the present application, the exhaust assembly further includes a hydrogen concentration detector (not shown), which is connected between the dryer 62 and the booster pump 61, that is, the hydrogen concentration detector is installed on a pipeline connecting the dryer 62 and the booster pump 61, and is used for detecting the hydrogen concentration and ensuring that the hydrogen output from the dryer 62 reaches the concentration required by the user.
Optionally, referring to fig. 4, as a specific embodiment of the mobile hydrogen production and hydrogenation apparatus by water electrolysis provided by the present application, the mobile hydrogen production and hydrogenation apparatus by water electrolysis 1 further comprises a water purification assembly 70, the water purification assembly 70 is disposed inside the housing 10, and the water purification assembly 70 is controlled by the controller 51, where the water purification assembly 70 comprises a water purifier (not shown) connected between the oxygen-water separator 42 and the circulation pump 30, i.e. the water inlet of the water purifier is connected with the water outlet of the oxygen-water separator 42, and the water outlet of the water purifier is connected with the water inlet of the circulation pump 30. Thus, the water supplied by the oxygen-water separator 42 is purified by the water purifier and then is injected into the water supply circuit of the mobile water electrolysis hydrogen production and hydrogenation apparatus 1 by the circulation pump 30, thereby ensuring the purity of the electrolysis water supplied into the proton exchange membrane electrolyzer 20. It will be appreciated that a water quality detector and a shut-off valve may be provided between the water purifier and the circulation pump 30, which shut-off valve shuts off the water supply circuit and switches the water into the waste water circuit if the purified water is not satisfactory for use as a result of detection by the water quality detector. Of course, in other embodiments of the present application, the water purification assembly 70 can be a separate functional module, and then connected to the mobile water electrolysis hydrogen production hydrogenation apparatus 1 through the water replenishing port of the oxygen-water separator 42 when required by the user.
Optionally, referring to fig. 4, as an embodiment of the mobile hydrogen production and hydrogenation apparatus by water electrolysis provided by the present application, the water purification assembly 70 further includes a bubble detector (not shown) connected between the water purifier and the circulation pump 30, that is, the bubble detector is installed on the pipeline connecting the water purifier and the circulation pump 30, and is used for detecting the size and quantity of bubbles in the pipeline, and preventing the bubbles in the electrolysis water from occupying the space in the proton exchange membrane electrolyzer 20 and affecting the efficiency of water electrolysis.
Optionally, referring to fig. 4, as an embodiment of the mobile hydrogen production and hydrogenation apparatus by water electrolysis provided by the present application, the mobile hydrogen production and hydrogenation apparatus by water electrolysis 1 further includes a water replenishing pump 80, the water replenishing pump 80 is disposed on the frame 10 and connected to the water replenishing port of the oxygen-water separator 42, and the water replenishing pump 80 is controlled by the controller 51. Specifically, the water replenishing pump 80 is connected to the water replenishing port of the oxygen-water separator 42, and when water is required to be replenished, the water replenishing pump 80 is connected to an external water source through a water pipe, so that water from the external water source can be pumped into the water supply loop of the mobile water electrolysis hydrogen production and hydrogenation device 1 through the centrifugal force provided by the water replenishing pump 80. Of course, in other embodiments of the present application, the make-up water pump 80 may be a separate functional module, and is connected to the mobile hydrogen production and hydrogenation apparatus 1 through the make-up water port of the oxygen-water separator 42 when required by the user.
The above are merely alternative embodiments of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement or the like made within the spirit and principle of the present application shall be included in the scope of the claims of the present application.
Claims (10)
1. The mobile water electrolysis hydrogen production hydrogenation device is characterized in that: the method comprises the following steps:
the device comprises a rack, wherein a wheel set is arranged at the bottom of the rack;
the proton exchange membrane electrolytic cell is arranged inside the frame;
the circulating pump is arranged inside the frame and is connected with a water inlet of the proton exchange membrane electrolytic cell;
the water-gas separation component is arranged inside the rack and comprises a hydrogen water separator and an oxygen water separator, the hydrogen water separator is connected with a hydrogen outlet of the proton exchange membrane electrolytic cell, the oxygen water separator is connected with an oxygen outlet of the proton exchange membrane electrolytic cell and a water inlet of the circulating pump, and the oxygen water separator is provided with a water replenishing port for connecting a water replenishing pump; and
control module locates in the frame, control module includes controller and two back pressure valves, the controller is used for control proton exchange membrane electrolysis cell the circulating pump hydrogen water separator with oxygen water separator operates according to the instruction, one of them back pressure valve connect in hydrogen water separator's hydrogen export, the other one back pressure valve connect in oxygen water separator's oxygen export.
2. The mobile hydrogenation apparatus for hydrogen production by water electrolysis according to claim 1, wherein: further comprising:
the exhaust subassembly is located in the frame, and be controlled by the controller, the exhaust subassembly includes the booster pump, the booster pump passes through the backpressure valve with hydrogen water separator connects.
3. The mobile hydrogen production and hydrogenation unit by water electrolysis according to claim 2, wherein: the exhaust assembly further includes:
the desicator is located the inside of frame, the desicator with hydrogen water separator connects, just the desicator passes through the back pressure valve with the booster pump is connected.
4. The mobile hydrogenation apparatus for hydrogen production by water electrolysis according to claim 3, wherein: the exhaust assembly further includes:
and the hydrogen concentration detector is connected between the dryer and the booster pump.
5. The mobile hydrogenation apparatus for hydrogen production by water electrolysis according to claim 1, wherein: the proton exchange membrane electrolytic cell comprises a plurality of groups of single electrolytic cells which are stacked, each single electrolytic cell is of a flat plate structure, and each single electrolytic cell comprises a single cell frame, a proton exchange membrane, an anode porous plate, an anode flow field plate, a cathode porous plate, a cathode flow field plate and a sealing ring.
6. The mobile hydrogenation apparatus for hydrogen production by water electrolysis according to claim 1, wherein: the hydrogen water separator includes:
the first water tank is connected with the proton exchange membrane electrolytic cell; and
the first heat exchanger is arranged in the first water tank and is used for being connected with a constant temperature water machine to realize heat exchange;
the oxygen-water separator includes:
the second water tank is connected with the first water tank, the proton exchange membrane electrolytic cell and the circulating pump, and the water replenishing port is arranged on the second water tank; and
and the second heat exchanger is arranged in the second water tank and is used for being connected with a constant temperature water machine to realize heat exchange.
7. The mobile hydrogenation apparatus for hydrogen production by water electrolysis according to claim 1, wherein: further comprising:
a water purification assembly disposed inside the housing and controlled by the controller, the water purification assembly including a water purifier connected between the oxygen-water separator and the circulation pump.
8. The mobile hydrogenation apparatus for hydrogen production by water electrolysis according to claim 7, wherein: the water purification assembly further comprises:
a bubble detector connected between the water purifier and the circulation pump.
9. The mobile hydrogenation apparatus for hydrogen production by water electrolysis according to claim 1, wherein: further comprising:
and the water replenishing pump is arranged on the rack, is connected with a water replenishing port of the oxygen-water separator and is controlled by the controller.
10. The mobile hydrogenation apparatus for hydrogen production by water electrolysis according to any of claims 1 to 9, wherein: the control assembly further comprises a constant current power supply, a display screen, a control switch and an instrument.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111270256A (en) * | 2020-03-12 | 2020-06-12 | 深圳市绿航星际太空科技研究院 | Movable water electrolysis hydrogen production hydrogenation device |
| CN113265668A (en) * | 2021-05-11 | 2021-08-17 | 嘉寓氢能源科技(辽宁)有限公司 | Movable water electrolysis hydrogen production hydrogenation device |
| CN113832498A (en) * | 2021-10-13 | 2021-12-24 | 上海氢迈工程技术有限公司 | Detection device convenient for detecting performance of electrode or diaphragm in water electrolysis hydrogen production device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111270256A (en) * | 2020-03-12 | 2020-06-12 | 深圳市绿航星际太空科技研究院 | Movable water electrolysis hydrogen production hydrogenation device |
| CN113265668A (en) * | 2021-05-11 | 2021-08-17 | 嘉寓氢能源科技(辽宁)有限公司 | Movable water electrolysis hydrogen production hydrogenation device |
| CN113832498A (en) * | 2021-10-13 | 2021-12-24 | 上海氢迈工程技术有限公司 | Detection device convenient for detecting performance of electrode or diaphragm in water electrolysis hydrogen production device |
| CN113832498B (en) * | 2021-10-13 | 2024-04-05 | 上海氢迈工程技术有限公司 | Detection device convenient for detecting electrode or diaphragm performance in water electrolysis hydrogen production device |
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