CN220977176U - Heater, electrolytic device and electrolysis system for producing hydrogen by using electrolytic tank - Google Patents
Heater, electrolytic device and electrolysis system for producing hydrogen by using electrolytic tank Download PDFInfo
- Publication number
- CN220977176U CN220977176U CN202322645018.4U CN202322645018U CN220977176U CN 220977176 U CN220977176 U CN 220977176U CN 202322645018 U CN202322645018 U CN 202322645018U CN 220977176 U CN220977176 U CN 220977176U
- Authority
- CN
- China
- Prior art keywords
- heater
- switch unit
- separator
- pipeline
- liquid inlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000001257 hydrogen Substances 0.000 title claims abstract description 52
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 52
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 49
- 238000005868 electrolysis reaction Methods 0.000 title claims abstract description 40
- 239000007788 liquid Substances 0.000 claims abstract description 121
- 239000003792 electrolyte Substances 0.000 claims abstract description 85
- 238000010438 heat treatment Methods 0.000 claims abstract description 25
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 15
- 239000001301 oxygen Substances 0.000 claims description 15
- 229910052760 oxygen Inorganic materials 0.000 claims description 15
- 230000001276 controlling effect Effects 0.000 claims description 3
- 150000002431 hydrogen Chemical group 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 8
- 238000009434 installation Methods 0.000 abstract description 4
- 238000005485 electric heating Methods 0.000 description 14
- 238000004519 manufacturing process Methods 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 230000009466 transformation Effects 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000012670 alkaline solution Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000009841 combustion method Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The utility model provides a heater, an electrolysis device and an electrolysis system for producing hydrogen by an electrolysis tank, wherein the heater comprises: the heater comprises a heater body, a switch module, a liquid inlet pipeline and a liquid outlet pipeline; the switch module comprises a first switch unit and a second switch unit; the heater body is provided with a liquid outlet end and a liquid inlet end, and the first end of the first switch unit, the liquid outlet end and the first end of the liquid outlet pipeline form three-way connection; the second end of the first switch unit, the first end of the second switch unit and the first end of the liquid inlet pipeline form three-way connection; the second end of the second switch unit is connected with the liquid inlet end. The technical scheme provided by the utility model optimizes the electrolyte heating process of the cold start of the electrolytic tank, reduces the application power consumption, also reduces the complexity of pipeline layout, realizes on-site installation quick-plug quick-change, facilitates the early-stage arrangement and the maintenance and replacement of a later-stage heater, and reduces the layout cost.
Description
Technical Field
The embodiment of the utility model relates to the technical field of electrolysis, in particular to a heater, an electrolysis device and an electrolysis system for producing hydrogen by an electrolysis tank.
Background
In the energy transformation, the hydrogen energy has the characteristics of green and high efficiency, and in the current various hydrogen production technologies, the hydrogen production by water electrolysis becomes a strategic direction of the future hydrogen energy industry because of the characteristics of high product purity, mature technology, realization of large-scale distributed utilization, easy coupling with renewable energy sources and the like.
The most common use in the current water electrolysis hydrogen production is an alkaline solution electrolysis tank, wherein the conductivity of the electrolyte increases along with the increase of the temperature and decreases along with the decrease of the temperature within a certain range. After the electrolytic tank is stopped, the temperature of the electrolyte is reduced due to natural heat dissipation, so that the conductivity is reduced, the temperature of the electrolyte is slowly increased during restarting, and the load cannot be rapidly increased.
In the prior art, the heating bypass is additionally arranged in the electrolysis system, and the heating bypass is used for heating the electrolyte, but the heating bypass is required to carry out complex pipeline transformation on the original electrolysis system, so that the running and transformation cost is obviously increased, and the aim of reducing the cost and enhancing the efficiency is not fulfilled.
Disclosure of utility model
The utility model provides a heater, an electrolysis device and an electrolysis system for producing hydrogen by using an electrolysis tank, optimizes the heating process of the electrolyte for cold starting of the electrolysis tank, reduces the application power consumption, simultaneously reduces the complexity of the layout of a pipeline by being equivalent to being connected in a passage system of the electrolysis tank in series, realizes quick plug and quick change of field installation, facilitates the arrangement of the former stage and the maintenance and replacement of the later stage heater, and reduces the layout cost.
In a first aspect, an embodiment of the present utility model provides a heater for producing hydrogen in an electrolytic cell, including: the heater comprises a heater body, a switch module, a liquid inlet pipeline and a liquid outlet pipeline; the switch module comprises a first switch unit and a second switch unit;
The heater body is provided with a liquid outlet end and a liquid inlet end, and the first end of the first switch unit, the liquid outlet end and the first end of the liquid outlet pipeline form three-way connection;
The second end of the first switch unit, the first end of the second switch unit and the first end of the liquid inlet pipeline form three-way connection; the second end of the second switch unit is connected with the liquid inlet end.
Optionally, the heater for producing hydrogen by using the electrolytic tank further comprises: a control unit and a first temperature sensor; a first temperature sensor is arranged on the heater body; the control unit is connected with the first temperature sensor and is used for regulating and controlling the heating power of the heater according to the temperature data of the first temperature sensor.
Optionally, the heater for producing hydrogen by the electrolytic cell further comprises a second temperature sensor; the second temperature sensor is arranged on the pipeline between the other end of the liquid outlet pipeline and the input end of the electrolytic tank; the second temperature sensor is used for detecting the temperature of electrolyte entering the electrolytic tank.
Optionally, the heater for producing hydrogen by using the electrolytic tank further comprises a liquid level flow sensing unit, wherein the liquid level flow sensing unit is arranged between the first end of the liquid inlet pipeline and the first end of the second switch unit; the liquid level flow sensing unit is used for detecting the liquid level and flow sensing parameters of the liquid inlet end of the heater body.
Optionally, the switch module further includes a third switch unit;
The second end of the first switch unit, the first end of the second switch unit and the first end of the third switch unit form three-way connection, and the second end of the third switch unit is connected with the liquid inlet pipeline.
Optionally, the switch module is a three-way valve.
In a second aspect, an embodiment of the present utility model provides an electrolyzer comprising the heater for producing hydrogen from an electrolyzer according to any embodiment of the present utility model, one or more electrolyzer, a first separator, a second separator, an output line, and a return line;
The second end of the liquid inlet pipeline is connected with the output pipeline; the output pipeline is used for guiding electrolyte, and the second end of the liquid outlet pipeline is connected with the input end of the electrolytic tank; the first output end of the electrolytic tank is connected with the first separator, the second output end of the electrolytic tank is connected with the second separator, and the output ends of the first separator and the second separator are connected with the return pipeline.
The embodiment of the utility model also provides an electrolysis device, which comprises the heater for producing hydrogen by the electrolysis bath, one or more electrolysis baths, a first separator, a second separator, an output pipeline and a return pipeline;
The second end of the liquid inlet pipeline is connected with the output pipeline; the output pipeline is used for guiding electrolyte, and the second end of the liquid outlet pipeline is connected with the return pipeline; the first output end of the electrolytic tank is connected with the first separator, the second output end of the electrolytic tank is connected with the second separator, and the output ends of the first separator and the second separator are connected with the return pipeline.
Optionally, the first separator is an oxygen separator, and the second separator is a hydrogen separator.
In a third aspect, an embodiment of the present utility model further provides an electrolysis system, including an electrolysis apparatus according to any embodiment of the present utility model.
According to the technical scheme provided by the embodiment of the utility model, the first end of the first switch unit, the liquid outlet end and the first end of the liquid outlet pipeline are connected in a three-way manner; the second end of the first switch unit, the first end of the second switch unit and the first end of the liquid inlet pipeline form three-way connection; the second end of the second switch unit is connected with the liquid inlet end, so that the switching of the large and small circulating channels is realized by changing the on-off states of the first switch unit and the second switch unit, the electrolyte heating process of the cold start of the electrolytic tank can be optimized, the application power consumption is reduced, meanwhile, the heater is equivalent to being connected in series in a channel system of the electrolytic tank, the complexity of pipeline layout is also reduced, the on-site installation quick-insertion quick-change is realized, the early-stage arrangement and the maintenance and the replacement of the later-stage heater are convenient, and the layout cost is reduced.
Drawings
FIG. 1 is a schematic diagram of a heater for producing hydrogen in an electrolyzer according to an embodiment of the present utility model;
FIG. 2 is a schematic view of a connection structure of an electrolytic device according to an embodiment of the present utility model;
FIG. 3 is a schematic view of a heater for producing hydrogen in an electrolytic cell according to an embodiment of the present utility model;
FIG. 4 is a schematic view of a connection structure of another electrolytic device according to an embodiment of the present utility model;
FIG. 5 is a schematic view showing a connection structure of another electrolytic apparatus according to the embodiment of the present utility model;
FIG. 6 is a schematic view showing a connection structure of another electrolytic apparatus according to the embodiment of the present utility model;
FIG. 7 is a schematic view showing a connection structure of an electrolytic device according to another embodiment of the present utility model;
FIG. 8 is a schematic view of a connection structure of another electrolytic device according to an embodiment of the present utility model.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The most common use in the current water electrolysis hydrogen production is an alkaline solution electrolysis tank, wherein the conductivity of the electrolyte increases along with the increase of the temperature and decreases along with the decrease of the temperature within a certain range. After the electrolytic tank is stopped, the temperature of the electrolyte is reduced due to natural heat dissipation, so that the conductivity is reduced, the temperature of the electrolyte is slowly increased during restarting, and the load cannot be rapidly increased. If the temperature of the electrolyte can be raised rapidly after the restart of the electrolytic cell, a rapid response can be achieved.
In the prior art, the heating bypass is additionally arranged in the electrolysis system, and the heating bypass is used for heating the electrolyte, but the heating bypass is required to carry out complex pipeline transformation on the original electrolysis system, so that the running and transformation cost is obviously increased, and the aim of reducing the cost and enhancing the efficiency is not fulfilled.
In view of this, fig. 1 is a schematic structural diagram of a heater for producing hydrogen in an electrolytic cell according to an embodiment of the present utility model, referring to fig. 1, including: the heater comprises a heater body 110, a switch module 120, a liquid inlet pipeline 130 and a liquid outlet pipeline 140; wherein the switching module 120 includes a first switching unit 121 and a second switching unit 122;
The heater body 110 is provided with a liquid outlet end 150 and a liquid inlet end 160, and a first end of the first switch unit 121, the liquid outlet end 150 and a first end of the liquid outlet pipeline 140 form three-way connection;
The second end of the first switch unit 121, the first end of the second switch unit 122 and the first end of the liquid inlet pipe 130 form a three-way connection; a second end of the second switch unit 122 is connected to the liquid inlet 160.
Specifically, the heater body 110 is further provided with an electric heating flange and an electric heating pipe, the heater body 110 is provided with a liquid outlet end 150 and a liquid inlet end 160, and electrolyte can enter the heater body 110 through the liquid inlet end 160, is heated by the electric heating flange and the electric heating pipe, and flows out from the liquid outlet end 150. In an exemplary embodiment of the present utility model, the heater body 110 may have a cylinder structure, which increases the volume of the electrolyte that can be heated inside, and the cylinder structure is arranged in a matrix form, so that it is convenient to fix by using an external frame. The liquid inlet 160 may be respectively connected to the second end of the first switch unit 121 and the first end of the liquid inlet pipe 130 via the second switch unit 122, so that the first end of the second switch unit 122, the second end of the first switch unit 121 and the first end of the liquid inlet pipe 130 form a three-way connection. Similarly, the first end of the first switch unit 121, the first end of the liquid outlet pipe 140 and the liquid outlet end 150 form a three-way connection. Therefore, by changing the on or off state of the first and second switching units 121 and 122, the flow path of the electrolyte can be changed, and heating up or bypass-unheating of the electrolyte can be achieved.
For convenience of explanation of the practical operation principle of the heater, fig. 2 is an exemplary schematic view of the connection structure of an electrolyzer according to an embodiment of the present utility model, and referring to fig. 2, the electrolyzer comprises the heater, the electrolyzer 210, the first separator 220, the second separator 230, the output line 240 and the return line 250; a second end of the feed line 130 is connected to an output line 240; the second end of the liquid outlet pipe 140 is connected to the input of the electrolytic cell 210, the first output of the electrolytic cell 210 is connected to the first separator 220, the second output of the electrolytic cell 210 is connected to the second separator 230, and the outputs of both the first separator 220 and the second separator 230 are connected to the return line 250. The output pipeline 240 is used for guiding and outputting electrolyte, when the electrolytic tank 210 is stopped or the current temperature of the electrolyte is too low to start the electrolytic tank 210, the first switch unit 121 is turned off, the second switch unit 122 is turned on, at this time, the electrolyte enters the heater body 110 from the liquid inlet pipeline 130 and the liquid inlet end 160, is heated by the electric heating flange and the electric heating pipe, flows out from the liquid outlet end 150 and flows to the electrolytic tank 210, and under the action of electric energy and the negative/positive electrode, the electrolyte of the electrolytic tank 210 is decomposed to generate hydrogen and oxygen at the cathode and the anode of the cell respectively. The first output end and the second output end of the electrolysis tank 210 respectively output hydrogen and oxygen carrying electrolyte, and the hydrogen and the oxygen respectively enter the first separator 220 and the second separator 230 for gas-liquid separation, and the hydrogen and the oxygen after the separators are separated and then are subjected to subsequent treatment. And the separated lye flows again from the return line 250 to the electrolyte recovery site.
In order to facilitate the distinction, the state of turning off the first switch unit 121 and turning on the second switch unit 122 may be recorded as a large circulation path, and the heater is arranged at the input front end of the electrolytic tank 210, which is equivalent to connecting the heater in series in the path system of the electrolytic tank 210, and the large circulation path is opened during cold start, so that the heater is adopted to rapidly heat the electrolyte, thereby effectively reducing the cold start time, and improving the hydrogen production of the electrolytic tank 210 to the rated yield in a short time, thereby achieving the purpose of rapid hydrogen production.
When the electrolyte temperature reaches the target temperature, the first switch unit 121 may be selectively turned on, the second switch unit 122 may be turned off, and the heater power is turned off, and at this time, the electrolyte flows from the liquid inlet pipe 130, the first switch unit 121 and the liquid outlet pipe 140 to the electrolytic tank 210, which may be denoted as a small circulation path, and the electrolyte is bypassed and does not flow through the heater, so that the flow resistance of the electrolyte is reduced, the flow of the electrolyte is smoother, and the corresponding operation power consumption of the water pump is also reduced. Through the switching of the large circulation passage and the small circulation passage, the electrolyte heating process of the cold start of the electrolytic tank 210 is optimized, the application power consumption is reduced, meanwhile, the heater is equivalent to being connected in the passage system of the electrolytic tank 210 in series, the complexity of the pipeline layout is also reduced, the early-stage arrangement and the maintenance and replacement of the later-stage heater are facilitated, and the layout cost is reduced.
According to the technical scheme provided by the embodiment of the utility model, the first end of the first switch unit, the liquid outlet end and the first end of the liquid outlet pipeline are connected in a three-way manner; the second end of the first switch unit, the first end of the second switch unit and the first end of the liquid inlet pipeline form three-way connection; the second end of the second switch unit is connected with the liquid outlet end, so that the switching of the large and small circulating channels is realized by changing the on-off states of the first switch unit and the second switch unit, the electrolyte heating process of the cold start of the electrolytic tank can be optimized, the application power consumption is reduced, meanwhile, the heater is equivalent to being connected in series in a channel system of the electrolytic tank, the complexity of pipeline layout is also reduced, the on-site installation quick-insertion quick-change is realized, the early-stage arrangement and the maintenance and the replacement of the later-stage heater are convenient, and the layout cost is reduced.
Optionally, the heater for producing hydrogen in the electrolyzer 210 further comprises: a control unit and a first temperature sensor; the heater body 110 is provided with a first temperature sensor; the control unit is connected with the first temperature sensor and is used for regulating and controlling the heating power of the heater according to the temperature data of the first temperature sensor.
Specifically, the heater body 110 is provided with a first temperature sensor, the number of the first temperature sensors is not limited, in order to obtain data more comprehensively, the first temperature sensors can be distributed, the first temperature sensors are utilized to detect the heating temperature of the heater body 110, the control unit can be integrated in an electric control system of the heater body 110, and also can be independently arranged in an external computer device and connected with the first temperature sensors in a wired or wireless manner, the control unit receives the temperature data of the first temperature sensors, and a computer control algorithm such as a PID (proportion, integral and derivative) control algorithm is adopted by the control unit, so that the automatic adjustment of the heating power of the heater is realized according to the temperature data of the first temperature sensors, and the electrolyte meets the temperature requirements under the cold start and heat preservation working conditions.
Optionally, the heater for producing hydrogen in the electrolytic cell 210 further comprises a second temperature sensor; illustratively, referring to FIG. 2, a second temperature sensor is provided on the conduit between the other end of the outlet conduit 140 and the input end of the electrolyzer 210; the second temperature sensor is used to detect the temperature of the electrolyte entering the electrolytic cell 210.
Specifically, the second temperature sensor is disposed between the liquid outlet pipe 140 and the input end of the electrolytic tank 210, and the second temperature sensor can collect the temperature of the electrolyte flowing into the electrolytic tank 210 in real time, so that the control unit can more precisely control the temperature of the electrolyte according to the heating temperature of the heater body 110 and the temperature of the electrolyte flowing into the electrolytic tank 210, for example, the heating temperature of the heater body 110 collected by the first temperature sensor is 40 ℃, so as to meet the target temperature of the electrolyte of 40 ℃, but after transportation through a pipeline, the temperature is reduced to a certain extent, so that the collecting temperature of the second temperature sensor is 35 ℃ before entering the electrolytic tank 210, which obviously does not meet the requirement, thereby influencing the hydrogen production efficiency. Therefore, the control temperature adjusts the heating power of the heater according to the acquired temperatures of the first temperature sensor and the second temperature sensor, and accurate temperature control is realized.
With continued reference to FIG. 1, optionally, the heater for producing hydrogen from the electrolyzer 210 further comprises a liquid level flow sensing unit 170, the liquid level flow sensing unit 170 being disposed between the first end of the liquid inlet conduit 130 and the first end of the second switching unit 122; the liquid level and flow sensing unit 170 is used for detecting a liquid level and a flow sensing parameter of the liquid inlet 160 of the heater body 110.
Specifically, when the large circulation path is used, the electrolyte enters the heater body 110 from the liquid inlet pipe 130 and the liquid inlet end 160, is heated by the electric heating flange and the electric heating pipe, and flows out to the electrolytic tank 210 from the liquid outlet end 150. The electrolyte is heated by the heater fast, set up liquid level flow sensing unit 170 between the first end of feed liquor pipeline 130 and second switch unit 122, detect the liquid level of feed liquor end 160 electrolyte through liquid level flow sensing unit 170, when using big circulation route, if detect the liquid level and be less than safe liquid level, probably because second switch unit 122 does not switch on or electrolyte is not enough to lead to, liquid level flow sensing unit 170 can report to the police the suggestion this moment, avoid the heater dry combustion method, reduce the heater fault rate. The liquid level flow sensing unit 170 may also detect flow parameters of the liquid inlet 160, so that flow data of the electrolyte may be monitored in real time.
Fig. 3 is a schematic structural view of a heater for producing hydrogen by using an electrolytic cell according to an embodiment of the present utility model, referring to fig. 3, fig. 4 is a schematic structural view of a connection structure of an electrolytic device according to an embodiment of the present utility model, and fig. 5 is a schematic structural view of a connection structure of an electrolytic device according to an embodiment of the present utility model, referring to fig. 3, fig. 4 and fig. 5, the switch module 120 further includes a third switch unit 123; the second end of the first switch unit 121, the first end of the second switch unit 122 and the first end of the third switch unit 123 form a three-way connection, and the second end of the third switch unit 123 is connected to the liquid inlet pipe 130.
Specifically, the second end of the inlet conduit 130 is connected to the outlet line 240; the second end of the liquid outlet pipe 140 is connected to the input of the electrolytic cell 210, the first output of the electrolytic cell 210 is connected to the first separator 220, the second output of the electrolytic cell 210 is connected to the second separator 230, and the outputs of both the first separator 220 and the second separator 230 are connected to the return line 250. The output pipeline 240 is used for guiding and outputting electrolyte, when the electrolytic tank 210 is stopped or the current temperature of the electrolyte is too low to start the electrolytic tank 210, the first switch unit 121 is turned off, the second switch unit 122 and the third switch unit 123 are turned on, and at this time, the electrolyte enters the heater body 110 through the liquid inlet pipeline 130 and the liquid inlet end 160, is heated by the electric heating flange and the electric heating pipe, and flows out through the liquid outlet end 150. To the electrolytic cell 210, the electrolyte of the electrolytic cell 210 is decomposed by the electric power and the cathode/anode electrodes, and hydrogen and oxygen are generated at the cathode and anode of the cell, respectively. The first output end and the second output end of the electrolysis tank 210 respectively output hydrogen and oxygen carrying electrolyte, and the hydrogen and the oxygen respectively enter the first separator 220 and the second separator 230 for gas-liquid separation, and the hydrogen and the oxygen after the separators are separated and then are subjected to subsequent treatment. And the separated lye flows again from the return line 250 to the electrolyte recovery site.
In order to facilitate the distinction, the state that the first switch unit 121 is turned off and the second switch unit 122 and the third switch unit 123 are turned on is still recorded as a large circulation path, and the heater is arranged at the input front end of the electrolytic tank 210, which is equivalent to connecting the heater in series in the path system of the electrolytic tank 210, and the large circulation path is opened during cold start, so that the electrolyte is quickly heated by the heater, the cold start time is effectively reduced, the hydrogen production amount of the electrolytic tank 210 is improved to the rated yield in a short time, and the purpose of quickly producing hydrogen is achieved.
When the electrolyte temperature reaches the target temperature, the first switch unit 121 and the third switch unit 123 can be selectively turned on, the second switch unit 122 is turned off, the heater power supply is turned off, at this time, the electrolyte flows from the liquid inlet pipe 130, the first switch unit 121 and the liquid outlet pipe 140 to the electrolytic tank 210, the passage can be recorded as a small circulation passage, the electrolyte is bypassed and does not flow through the heater, so that the flow resistance of the electrolyte is reduced, the flow of the electrolyte is smoother, and the corresponding operation power consumption of the water pump is also reduced. Through the switching of the large circulation passage and the small circulation passage, the electrolyte heating process of the cold start of the electrolytic tank 210 is optimized, the application power consumption is reduced, meanwhile, the heater is equivalent to being connected in the passage system of the electrolytic tank 210 in series, the complexity of the pipeline layout is also reduced, the early-stage arrangement and the maintenance and replacement of the later-stage heater are facilitated, and the layout cost is reduced. Through addding third switch unit 123, in pipeline overall arrangement in-process, can cut off the passageway of output pipeline 240 and heater, through cutting off first switch unit 121, second switch unit 122 and third switch unit 123, avoid the liquid inflow heater, improve the convenience when installing, further improve the quick-plug fast-safety characteristic of heater. In this example, the switching module 120 may select a three-way valve 124, and replace the discrete first, second and third switching units 121, 122 and 123 with the three-way valve 124.
Embodiments of the present utility model also provide an electrolysis device, see fig. 2 or 4, comprising a heater, one or more electrolysis cells 210, a first separator 220, a second separator 230, an output line 240 and a return line 250 according to any embodiment of the present utility model;
A second end of the feed line 130 is connected to an output line 240; the output pipeline 240 is used for guiding the electrolyte, and the second end of the liquid outlet pipeline 140 is connected with the input end of the electrolytic tank 210; the first output of the electrolyzer 210 is connected to a first separator 220, the second output of the electrolyzer 210 is connected to a second separator 230, and the outputs of both the first separator 220 and the second separator 230 are connected to a return line 250.
Specifically, the output pipeline 240 is configured to guide and output the electrolyte, when the electrolytic cell 210 is stopped or the current temperature of the electrolyte is too low to start the electrolytic cell 210, if fig. 2 is taken as an example, the first switch unit 121 is turned off, the second switch unit 122 is turned on, if fig. 4 is taken as an example, the first switch unit 121 is turned off, the second switch unit 122 and the third switch unit 123 are turned on, at this time, the electrolyte enters the heater body 110 through the liquid inlet pipeline 130 and the liquid inlet end 160, is heated by the electric heating flange and the electric heating pipe, and flows out through the liquid outlet end 150 to the electrolytic cell 210. Under the action of the electric power and the cathode/anode electrodes, the electrolyte of the electrolytic cell 210 is decomposed to generate hydrogen and oxygen at the cathode and anode of the cell, respectively. The first output end and the second output end of the electrolysis tank 210 respectively output hydrogen and oxygen carrying electrolyte, and the hydrogen and the oxygen respectively enter the first separator 220 and the second separator 230 to be subjected to gas-liquid separation, and the hydrogen and the oxygen after the separators are separated, and the first separator 220 is a hydrogen separator and the second separator 230 is an oxygen separator. And then carrying out subsequent treatment. And the separated lye flows again from the return line 250 to the electrolyte recovery site.
For convenience of distinction, the first switching unit 121 may be turned off and the second switching unit 122 may be turned on; or, the state where the first switching unit 121 is turned off and the second switching unit 122 and the third switching unit 123 are turned on is referred to as a large circulation path. At this time, the heater is disposed at the front end of the input of the electrolytic cell 210, which corresponds to a series connection of the heater in the passage system of the electrolytic cell 210, and a large circulation passage is opened at the time of cold start, so that the heater rapidly heats the electrolyte.
When the electrolyte temperature reaches the target temperature, if fig. 2 is taken as an example, the first switch unit 121 is turned on, the second switch unit 122 is turned off, if fig. 4 is taken as an example, the first switch unit 121 is turned on, the second switch unit 122 and the third switch unit 123 are turned off, the power supply of the heater is turned off, at this time, the electrolyte flows from the liquid inlet pipe 130, the first switch unit 121 and the liquid outlet pipe 140 to the electrolytic tank 210, the passage can be recorded as a small circulation passage, the electrolyte is bypassed and does not flow through the heater, so that the flow resistance of the electrolyte is reduced, the flow of the electrolyte is smoother, and the corresponding operation power consumption of the water pump is also reduced. Through the switching of the large circulation passage and the small circulation passage, the electrolyte heating process of the cold start of the electrolytic tank 210 is optimized, the application power consumption is reduced, meanwhile, the heater is equivalent to being connected in the passage system of the electrolytic tank 210 in series, the complexity of the pipeline layout is also reduced, the early-stage arrangement and the maintenance and replacement of the later-stage heater are facilitated, and the layout cost is reduced.
Fig. 6 is a schematic view showing a connection structure of another electrolytic device according to an embodiment of the present utility model, and fig. 7 is a schematic view showing a connection structure of another electrolytic device according to an embodiment of the present utility model, referring to fig. 6 and 7, including a heater, one or more electrolytic cells 210, a first separator 220, a second separator 230, an output line 240 and a return line 250 according to any embodiment of the present utility model;
A second end of the feed line 130 is connected to an output line 240; the output pipeline 240 is used for guiding the electrolyte, and the second end of the liquid outlet pipeline 140 is connected with the return pipeline 250; the first output of the electrolyzer 210 is connected to a first separator 220, the second output of the electrolyzer 210 is connected to a second separator 230, and the outputs of both the first separator 220 and the second separator 230 are connected to a return line 250.
Specifically, the output line 240 is used for guiding the output electrolyte, when the electrolytic tank 210 is stopped or the current temperature of the electrolyte is too low to start the electrolytic tank 210, if fig. 6 is taken as an example, the first switch unit 121 is turned off, and the second switch unit 122 is turned on, if fig. 7 is taken as an example, the first switch unit 121 is turned off, and the second switch unit 122 and the third switch unit 123 are turned on, and as an example, fig. 8 is a schematic diagram of a connection structure of another electrolytic device according to an embodiment of the present utility model, referring to fig. 8, a three-way valve 124 may be used instead of the first switch unit 121, the second switch unit 122 and the third switch unit 123. At this time, the electrolyte enters the heater body 110 through the liquid inlet pipe 130 and the liquid inlet end 160, is heated by the electric heating flange and the electric heating pipe, flows out from the liquid outlet end 150, returns to the return pipeline 250, and enters the heater body 110 through the liquid inlet pipe 130 and the liquid inlet end 160 again if the temperature still does not reach the requirement at this time.
When the electrolyte temperature reaches the target temperature, if fig. 6 is taken as an example, the first switch unit 121 is turned on, the second switch unit 122 is turned off, if fig. 7 is taken as an example, the first switch unit 121 and the third switch unit 123 are turned on, the second switch unit 122 is turned off, the heater power supply is turned off, at this time, the electrolyte flows to the electrolytic tank 210 from the liquid inlet pipeline 130, the first switch unit 121 and the liquid outlet pipeline 140, and the electrolyte is bypassed and does not flow through the heater, so that the flow resistance of the electrolyte is reduced, the flow of the electrolyte is smoother, and the corresponding operation power consumption of the water pump is also reduced. Through the switching of the large circulation passage and the small circulation passage, the electrolyte heating process of the cold start of the electrolytic tank 210 is optimized, the application power consumption is reduced, meanwhile, the heater is equivalent to being connected in the passage system of the electrolytic tank 210 in series, the complexity of the pipeline layout is also reduced, the early-stage arrangement and the maintenance and replacement of the later-stage heater are facilitated, and the layout cost is reduced. The heater is arranged at the rear end of the output of the electrolytic cell 210, so that the electrolyte is heated to the target temperature and then enters the electrolytic cell 210.
The embodiment of the utility model also provides an electrolysis system, which comprises the electrolysis device of any embodiment of the utility model. The electrolytic device according to any embodiment of the present utility model has the same advantageous effects and will not be described in detail herein.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (10)
1. A heater for producing hydrogen in an electrolyzer comprising: the heater comprises a heater body, a switch module, a liquid inlet pipeline and a liquid outlet pipeline; the switch module comprises a first switch unit and a second switch unit;
The heater body is provided with a liquid outlet end and a liquid inlet end, and the first end of the first switch unit, the liquid outlet end and the first end of the liquid outlet pipeline form three-way connection;
The second end of the first switch unit, the first end of the second switch unit and the first end of the liquid inlet pipeline form three-way connection; the second end of the second switch unit is connected with the liquid inlet end.
2. The heater for producing hydrogen in an electrolytic cell of claim 1, further comprising: a control unit and a first temperature sensor; a first temperature sensor is arranged on the heater body; the control unit is connected with the first temperature sensor and is used for regulating and controlling the heating power of the heater according to the temperature data of the first temperature sensor.
3. The heater for producing hydrogen in an electrolyzer of claim 2 further comprising a second temperature sensor; the second temperature sensor is arranged on the pipeline between the other end of the liquid outlet pipeline and the input end of the electrolytic tank; the second temperature sensor is used for detecting the temperature of electrolyte entering the electrolytic tank.
4. A heater for producing hydrogen in an electrolysis cell according to any one of claims 1 to 3, further comprising a liquid level flow sensing unit disposed between the first end of the liquid inlet conduit and the first end of the second switch unit; the liquid level flow sensing unit is used for detecting the liquid level and flow sensing parameters of the liquid inlet end of the heater body.
5. The heater for producing hydrogen in an electrolytic cell of claim 1 wherein said switch module further comprises a third switch unit;
The second end of the first switch unit, the first end of the second switch unit and the first end of the third switch unit form three-way connection, and the second end of the third switch unit is connected with the liquid inlet pipeline.
6. The heater for producing hydrogen in an electrolyzer of claim 4 wherein said switch module is a three-way valve.
7. An electrolysis apparatus comprising the heater for producing hydrogen from an electrolyzer of any one of claims 1 to 5, one or more electrolyzers, a first separator, a second separator, an output line, and a return line;
The second end of the liquid inlet pipeline is connected with the output pipeline; the output pipeline is used for guiding electrolyte, and the second end of the liquid outlet pipeline is connected with the input end of the electrolytic tank; the first output end of the electrolytic tank is connected with the first separator, the second output end of the electrolytic tank is connected with the second separator, and the output ends of the first separator and the second separator are connected with the return pipeline.
8. An electrolysis apparatus comprising the heater for producing hydrogen from an electrolyzer of any one of claims 1 to 5, one or more electrolyzers, a first separator, a second separator, an output line, and a return line;
The second end of the liquid inlet pipeline is connected with the output pipeline; the output pipeline is used for guiding electrolyte, and the second end of the liquid outlet pipeline is connected with the return pipeline; the first output end of the electrolytic tank is connected with the first separator, the second output end of the electrolytic tank is connected with the second separator, and the output ends of the first separator and the second separator are connected with the return pipeline.
9. The electrolyzer of claim 8 wherein the first separator is an oxygen separator and the second separator is a hydrogen separator.
10. An electrolysis system comprising an electrolysis device according to any one of claims 7 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322645018.4U CN220977176U (en) | 2023-09-27 | 2023-09-27 | Heater, electrolytic device and electrolysis system for producing hydrogen by using electrolytic tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322645018.4U CN220977176U (en) | 2023-09-27 | 2023-09-27 | Heater, electrolytic device and electrolysis system for producing hydrogen by using electrolytic tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220977176U true CN220977176U (en) | 2024-05-17 |
Family
ID=91055313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322645018.4U Active CN220977176U (en) | 2023-09-27 | 2023-09-27 | Heater, electrolytic device and electrolysis system for producing hydrogen by using electrolytic tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220977176U (en) |
-
2023
- 2023-09-27 CN CN202322645018.4U patent/CN220977176U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112899726B (en) | Water electrolysis hydrogen production system and control method thereof | |
| CN112899706B (en) | Water electrolysis hydrogen production system and control method thereof | |
| CN107039667B (en) | Signal control system and control method for fuel cell stack power generation system | |
| CN210796654U (en) | Water supply-cooling-temperature control integrated system for pure water SPE water electrolyzer | |
| CN114606509B (en) | Thermal management system and method for hydrogen production electrolytic cell array | |
| WO2023226425A1 (en) | Hydrogen production system, and thermal management method and apparatus therefor | |
| WO2024060797A1 (en) | Fuel cell, and cell stack humidity control apparatus and method therefor | |
| CN114507870A (en) | Differential pressure controller, hydrogen production system, and control method and device of hydrogen production system | |
| CN220977176U (en) | Heater, electrolytic device and electrolysis system for producing hydrogen by using electrolytic tank | |
| CN117089868A (en) | Heater, electrolytic device and electrolysis system for producing hydrogen by using electrolytic tank | |
| CN203218379U (en) | Water-cooling type fuel battery temperature control system | |
| CN116024609A (en) | Electrolytic cell starting system, method, device and storage medium | |
| CN113789530B (en) | Electrolytic cell hydrogen production device and method | |
| CN116024594A (en) | Alkaline water electrolysis hydrogen production system and method | |
| CN114318390A (en) | Circulating heat exchange system | |
| CN113637994A (en) | Water electrolysis hydrogen production system with electrolyte heating function | |
| CN221254723U (en) | Hydrogen production system | |
| CN206574803U (en) | A kind of fuel cell system based on live hydrogen manufacturing | |
| CN218232595U (en) | Water electrolysis hydrogen production system | |
| CN215418257U (en) | Reversible fuel cell power generation facility of double-cabinet module | |
| CN220317976U (en) | Water electrolysis hydrogen production system | |
| CN216947217U (en) | Hydrogen production device and renewable energy hydrogen production system | |
| CN218779049U (en) | Alkali liquor circulating device and alkaline water electrolysis hydrogen production system | |
| CN221176278U (en) | Integrated application device for producing oxygen and fuel cell by using integrated electrolyzed water | |
| CN221217938U (en) | Electrolytic tank performance test platform |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |