CN218779036U - Cooling liquid cooling device and hydrogen production system - Google Patents
Cooling liquid cooling device and hydrogen production system Download PDFInfo
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- CN218779036U CN218779036U CN202222351096.9U CN202222351096U CN218779036U CN 218779036 U CN218779036 U CN 218779036U CN 202222351096 U CN202222351096 U CN 202222351096U CN 218779036 U CN218779036 U CN 218779036U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
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Abstract
The utility model discloses a cooling liquid cooling device and hydrogen production system, the cooling liquid cooling device comprises a cooling liquid circulating pump, a pressure detection piece and an opening adjustable piece, the cooling liquid circulating pump is a variable frequency pump, the pressure detection piece is arranged at the outlet of the cooling liquid circulating pump and is in communication connection with the cooling liquid circulating pump, so that the cooling liquid circulating pump can adjust the output pressure to a preset pressure value; the opening-adjustable part is positioned at the downstream of the pressure detection part, the inlet of the opening-adjustable part is communicated with the outlet of the cooling liquid circulating pump, and the outlet of the opening-adjustable part is communicated with the cooling liquid inlet of the alkali liquid cooler of the hydrogen production device. The utility model discloses an aperture according to the number of the electrolysis trough of work in the hydrogen plant adjusts the aperture of aperture regulating part, and the aperture of aperture regulating part changes the back, and the pressure detection piece that is located between coolant liquid circulating pump and the aperture regulating part detects the pressure value and changes to with pressure signal transmission to coolant liquid circulating pump, coolant liquid circulating pump change output frequency, saved the energy consumption.
Description
Technical Field
The utility model relates to a hydrogen manufacturing system technical field especially relates to a cooling liquid cooling device and hydrogen manufacturing system.
Background
At present, a hydrogen production device for producing hydrogen with large gas amount by alkaline electrolyzed water adopts a parallel connection mode of a plurality of electrolytic cells, the working number of the electrolytic cells changes along with the change of the electric power of the front end, and the change of the working number of the electrolytic cells can influence the change of the circulating flow of the alkali liquor, thereby influencing the change of the circulating cooling water flow of an alkali liquor cooler. The existing cooling water circulating pump uses a power frequency pump, when the flow of cooling water becomes small, the electric power consumed by the pump is unchanged, and the energy consumption of the system is increased.
SUMMERY OF THE UTILITY MODEL
In view of this, the first object of the present invention is to provide a cooling liquid cooling device, which aims to adjust the output power of the cooling liquid pump according to the change of the working amount of the electrolytic bath, so as to reduce the energy consumption.
A second object of the present invention is to provide a hydrogen production system.
In order to achieve the first object, the present invention provides the following solutions:
a coolant cooling apparatus for providing coolant to a hydrogen plant, comprising:
the cooling liquid circulating pump is a variable frequency pump;
the pressure detection piece is arranged at an outlet of the cooling liquid circulating pump and is in communication connection with the cooling liquid circulating pump, so that the cooling liquid circulating pump can adjust the output pressure to a preset pressure value;
the inlet of the opening-adjustable part is communicated with the outlet of the cooling liquid circulating pump, the opening-adjustable part is positioned at the downstream of the pressure detection part, and the outlet of the opening-adjustable part is communicated with the cooling liquid inlet of an alkali liquid cooler of the hydrogen production device.
In a specific embodiment, the pressure detection element is a pressure transmitter, and the pressure transmitter is in communication connection with a frequency converter of the cooling liquid circulating pump;
when the pressure value detected by the pressure detection piece is smaller than the preset pressure value, the frequency of the cooling liquid circulating pump is increased;
and when the pressure value detected by the pressure detection piece is greater than the preset pressure value, the frequency of the cooling liquid circulating pump is reduced.
In another specific embodiment, the downstream of the hydrogen production device after the outlets of all the electrolytic cells are combined together is provided with a temperature detection piece, and the opening-adjustable piece is in communication connection with the temperature detection piece and used for adjusting the opening according to the temperature detected by the temperature detection piece.
In another specific embodiment, the opening-adjustable member is a regulating valve, and the temperature detecting member is a temperature detecting sensor;
when the temperature value detected by the temperature detection part is greater than a preset temperature value, the opening of the opening adjustable part is increased;
and when the temperature value detected by the temperature detection part is smaller than the preset temperature value, the opening degree of the opening degree adjustable part is reduced.
In another specific embodiment, the cooling liquid cooling device further comprises a main pipeline and a branch pipeline, the main pipeline is communicated with the cooling liquid circulating pump and the lye cooler, and an inlet of the branch pipeline is communicated with the main pipeline and is positioned at the downstream of the pressure detection part and the upstream of the opening-adjustable part;
the branch pipeline is used for conveying cooling liquid to a hydrogen cooler and an oxygen cooler of the hydrogen production device.
In another specific embodiment, the coolant cooling means provides coolant to at least 1 of the hydrogen-producing means;
when the cooling liquid cooling device at least provides cooling liquid for 2 hydrogen production devices, the number of the opening-adjustable parts is at least 2, the pressure detection part is arranged on a main pipeline with an inlet communicated with an outlet of the cooling liquid circulating pump, the main pipeline is divided into at least 2 sub-pipelines at the downstream of the pressure detection part, the sub-pipelines are arranged in one-to-one correspondence with the hydrogen production devices, the outlet of each sub-pipeline is communicated with a cooling liquid inlet of an alkali liquor cooler corresponding to the hydrogen production devices, and at least 1 opening-adjustable part is respectively arranged on each sub-pipeline.
According to the utility model discloses an each embodiment can make up as required wantonly, and the embodiment that obtains after these combinations is also in the utility model discloses the scope is the utility model discloses a part of the concrete implementation mode.
The utility model provides a coolant liquid cooling device adjusts the aperture of aperture regulating part through the number according to the electrolysis trough of work in the hydrogen plant, and the aperture of aperture regulating part changes the back, and the pressure detection spare that is located between coolant liquid circulating pump and the aperture regulating part detects the pressure value and changes to transmit the pressure signal that detects to the coolant liquid circulating pump, and the coolant liquid circulating pump is the variable frequency pump, can change output frequency, and then adjusts output pressure to predetermineeing the pressure value. To sum up, the utility model provides a coolant liquid cooling device can adjust the output that the coolant liquid circulating pump corresponds according to the difference of electrolysis trough work quantity, has saved the energy consumption.
In order to achieve the second objective, the present invention provides the following solutions:
a hydrogen production system comprising a hydrogen production apparatus and a coolant cooling apparatus as described in any one of the above;
the hydrogen production device comprises an electrolytic cell, a gas-liquid separator, an alkali liquor cooler and a temperature detection piece, wherein an outlet of the electrolytic cell is communicated with an inlet of the gas-liquid separator, a liquid outlet of the gas-liquid separator is communicated with an alkali liquor inlet of the alkali liquor cooler, an alkali liquor outlet of the alkali liquor cooler is communicated with an inlet of the electrolytic cell, and the temperature detection piece is arranged on a communication pipeline which is communicated with the inlet of the gas-liquid separator and the outlet of the electrolytic cell;
the temperature detection part is in communication connection with the opening-adjustable part of the cooling liquid cooling device.
In a specific embodiment, the number of the electrolytic cells is at least 1, and when the number of the electrolytic cells is at least 2, the outlets of all the electrolytic cells are communicated with the communication pipeline, and the temperature detection member is positioned at the downstream of the combination of the outlets of all the electrolytic cells.
In another specific embodiment, the hydrogen plant further comprises a lye pump;
the inlet of the alkali liquor pump is communicated with the alkali liquor outlet of the alkali liquor cooler, and the outlet of the alkali liquor pump is communicated with the inlet of each electrolytic cell.
In another specific embodiment, the lye pump is a variable frequency pump.
In another specific embodiment, the gas-liquid separator comprises a hydrogen-base separator and an oxygen-base separator;
the communication pipeline comprises a hydrogen-alkali communication pipeline and an oxygen-alkali communication pipeline;
the outlet of the electrolytic cell comprises a hydrogen-alkali outlet of the electrolytic cell and an oxygen-alkali outlet of the electrolytic cell;
the hydrogen-alkali outlets of all the electrolytic cells are respectively communicated with the hydrogen-alkali communication pipeline, and the outlets of the hydrogen-alkali communication pipeline are communicated with the hydrogen-alkali inlet of the hydrogen-alkali separator;
the oxygen-alkali outlets of all the electrolytic cells are respectively communicated with the oxygen-alkali communication pipelines, and the outlets of the oxygen-alkali communication pipelines are communicated with the oxygen-alkali inlets of the oxygen-alkali separators;
an alkali liquor outlet of the hydrogen-alkali separator and an alkali liquor outlet of the oxygen-alkali separator are communicated to an alkali liquor inlet of the alkali liquor cooler through alkali liquor pipelines, and the alkali liquor outlet of the alkali liquor cooler is communicated with inlets of the electrolytic tanks respectively;
the temperature detection piece is arranged on the hydrogen-alkali communicating pipeline and is positioned at the downstream of the hydrogen-alkali outlets of all the electrolytic cells after being converged together; or the temperature detection piece is arranged on the oxygen-alkali communicating pipeline and is positioned at the downstream of the oxygen-alkali outlets of all the electrolytic cells after being converged together.
In another specific embodiment, the hydrogen plant further comprises a hydrogen cooler and an oxygen cooler;
a hydrogen inlet of the hydrogen cooler is communicated with a hydrogen outlet of the hydrogen-alkali separator, and an oxygen inlet of the oxygen cooler is communicated with an oxygen outlet of the oxygen-alkali separator;
and the cooling liquid inlet of the hydrogen cooler and the cooling liquid inlet of the oxygen cooler are respectively communicated with the outlets of branch pipelines of the cooling liquid cooling device.
In another specific embodiment, the number of hydrogen-producing assemblies is at least 1;
when the number of the hydrogen production devices is 2 or more than 2, the pressure detection parts of the cooling liquid cooling device are arranged on a main pipeline communicated with the outlet of the cooling liquid circulating pump through the inlet, the main pipeline is divided into at least 2 sub-pipelines at the downstream of the pressure detection parts, the sub-pipelines are arranged in one-to-one correspondence with the hydrogen production devices, the outlets of the sub-pipelines are communicated with the cooling liquid inlet of an alkali liquid cooler corresponding to the hydrogen production devices, at least 1 opening-adjustable part is arranged on each sub-pipeline, and all the opening-adjustable parts are respectively communicated with the temperature detection parts.
Because the hydrogen production system provided by the utility model comprises the cooling liquid cooling device in any one of the above items, the beneficial effects that the above cooling liquid cooling device has are that the hydrogen production system disclosed by the utility model comprises.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without any novelty.
Fig. 1 is a schematic structural diagram of a hydrogen production system provided by the present invention.
Wherein, in fig. 1:
the system comprises a cooling liquid cooling device 100, a hydrogen production device 200, a cooling liquid circulating pump 101, a pressure detection piece 102, an opening-adjustable piece 103, an electrolytic tank 201, a temperature detection piece 202, a main pipeline 104, a branch pipeline 105, a hydrogen production system 1000, a gas-liquid separator 203, an alkali liquid cooler 204, an alkali liquid pipeline 205, an alkali liquid pump 206, a communication pipeline 207, a hydrogen-alkali separator 203a, an oxygen-alkali separator 203b, a hydrogen-alkali communication pipeline 207a, an oxygen-alkali communication pipeline 207b, a hydrogen-gas cooler 208 and an oxygen-gas cooler 209.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to fig. 1 in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without making novelty work belong to the protection scope of the present invention.
In the description of the present invention, it should be understood that the terms "upper", "lower", "top surface", "bottom surface", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for convenience of description and simplification of description, and does not indicate or imply that the position or element referred to must have a specific orientation, be constituted in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Referring to fig. 1, a first aspect of the present invention provides a cooling liquid cooling device 100 for providing a cooling liquid for a hydrogen production apparatus 200, and adjusting the output power of a cooling liquid pump according to the change of the working amount of an electrolytic bath 201, thereby reducing the energy consumption.
The cooling liquid cooling device 100 comprises a cooling liquid circulating pump 101, a pressure detecting part 102 and an opening-adjustable part 103, specifically, the cooling liquid circulating pump 101 is a variable frequency pump so as to output cooling liquid with corresponding flow according to the change of the working number of the electrolytic bath 201.
A pressure detecting member 102 is installed at an outlet of the coolant circulation pump 101 for detecting a pressure at the outlet of the coolant circulation pump 101. Pressure detection piece 102 is connected with coolant liquid circulating pump 101 communication, and coolant liquid circulating pump 101 adjusts the pressure of output to preset pressure value according to the pressure value that pressure detection piece 102 detected. It should be noted that the preset pressure value is specifically set according to needs, and is not limited to a certain specific value or specific values.
The opening-adjustable part 103 is positioned at the downstream of the pressure detection part 102, the inlet of the opening-adjustable part 103 is communicated with the outlet of the cooling liquid circulating pump 101, and the outlet of the opening-adjustable part 103 is communicated with the cooling liquid inlet of the alkali liquid cooler 204 of the hydrogen production device 200. Specifically, the opening degree of the opening degree adjusting member 103 is adjusted according to the number of the electrolytic cells 201 operating in the hydrogen production apparatus 200, and when the opening degree of the opening degree adjusting member 103 changes, the pressure detecting member 102 located between the coolant circulation pump 101 and the opening degree adjusting member 103 detects that the pressure value changes, and transmits the detected pressure signal to the coolant circulation pump 101, and the coolant circulation pump 101 is a variable frequency pump, and is capable of changing the output frequency, and further adjusting the output pressure to a preset pressure value. Namely, the utility model adjusts the output power corresponding to the cooling liquid circulating pump 101 according to the difference of the working amount of the electrolytic bath 201, thereby saving the energy consumption.
In some embodiments, the pressure sensing element 102 is a pressure transducer that is communicatively coupled to a frequency converter of the coolant circulation pump 101.
When the pressure value detected by the pressure detecting member 102 is smaller than the preset pressure value, the frequency of the coolant circulation pump 101 is increased; when the pressure value detected by the pressure detecting member 102 is greater than the preset pressure value, the frequency of the coolant circulation pump 101 is decreased. That is, when the outlet demand flow of the coolant circulation pump 101 changes, the outlet pressure of the coolant circulation pump 101 changes, and at this time, the frequency of the coolant circulation pump 101 changes to maintain the outlet pressure of the coolant circulation pump 101 at the preset pressure value. To sum up, the utility model discloses a frequency of coolant liquid circulating pump 101 reaches the purpose of saving the electric energy with the outlet pressure interlock of coolant liquid circulating pump 101.
It should be noted that the pressure detecting element 102 is a pressure transmitter, which is only one embodiment of the present invention, and in practical applications, the pressure detecting element 102 may be a pressure sensor.
In some embodiments, the temperature detecting element 202 is installed downstream after the outlets of all the electrolytic cells 201 of the hydrogen production apparatus 200 are merged together, and the opening degree adjustable element 103 is in communication connection with the temperature detecting element 202 and is used for adjusting the opening degree according to the temperature detected by the temperature detecting element 202.
Here, the opening degree of the opening degree adjusting member is adjusted according to the temperature detected by the temperature detecting member 202, and the opening degree of the opening degree adjusting member is increased when the detected temperature is increased, and is decreased when the detected temperature is decreased. It can be understood that, when the opening degree of the opening degree adjusting member is changed, the pressure value detected by the pressure detecting member 102 is also changed accordingly, and the coolant circulating pump 101 adjusts the output frequency according to the pressure value detected by the pressure detecting member 102, so as to adjust the output pressure to the preset pressure value. The utility model provides a coolant liquid cooling device 100 can adjust the output that coolant liquid circulating pump 101 corresponds according to the difference of electrolysis trough 201 work quantity, has saved the energy consumption.
It should be noted that the above-mentioned disclosure of adjusting the opening degree of the opening degree adjuster 103 according to the temperature detected by the temperature detector 202 is only one embodiment of the present invention, and in practical applications, the opening degree of the opening degree adjuster 103 may be manually adjusted according to the number of the operating electrolytic cells 201.
Further, the utility model discloses an aperture adjustable part 103 is the governing valve, and temperature detection spare 202 is the temperature detection sensor, and when the temperature value that temperature detection spare 202 detected was greater than the preset temperature value, the aperture of aperture adjustable part 103 increased; when the temperature value detected by the temperature detecting member 202 is smaller than the preset temperature value, the opening degree of the opening degree adjustable member 103 is decreased.
It should be noted that the preset temperature value is specifically set according to needs, and is not limited to a certain specific value or specific values.
In some embodiments, the cooling liquid cooling device 100 further includes a main pipeline 104 and a branch pipeline 105, the main pipeline 104 is connected to the cooling liquid circulating pump 101 and the lye cooler 204, an inlet of the branch pipeline 105 is connected to the main pipeline 104 and is located downstream of the pressure detecting element 102 and upstream of the opening adjustable element 103, and the branch pipeline 105 is used for delivering cooling liquid to the hydrogen cooler 208 and the oxygen cooler 209 of the hydrogen production device 200. That is, the utility model discloses can use 1 coolant liquid circulating pump 101 to realize providing the coolant liquid for hydrogen cooler 208, oxygen cooler 209 and alkali lye cooler 204 respectively, avoid alone being equipped with coolant liquid circulating pump 101 respectively for hydrogen cooler 208, oxygen cooler 209 and alkali lye cooler 204, reduce the number of coolant liquid circulating pump 101, the cost is reduced.
In some embodiments, coolant cooling apparatus 100 provides coolant to at least 1 hydrogen-producing apparatus 200, and as shown in FIG. 1, coolant cooling apparatus 100 provides coolant to 1 hydrogen-producing apparatus 200.
When the cooling liquid cooling device 100 at least provides cooling liquid for 2 hydrogen production devices 200, the number of the opening-adjustable pieces 103 is at least 2, the outlet of the cooling liquid circulating pump 101 is communicated with the inlet of the main pipeline 104, the pressure detection piece 102 is installed on the main pipeline 104, the main pipeline 104 is divided into at least 2 sub-pipelines at the downstream of the pressure detection piece 102, the sub-pipelines are arranged in one-to-one correspondence with the hydrogen production devices 200, the outlets of the sub-pipelines are communicated with the cooling liquid inlets of the alkali coolers 204 of the corresponding hydrogen production devices 200, and at least 1 opening-adjustable piece 103 is installed on each sub-pipeline.
The utility model discloses in, because main line 104 is located the low reaches punishment of pressure measurement 102 and is divided into 2 at least sub-pipelines, and the adjustable 103 of aperture installs on the sub-pipeline, consequently, when having realized that the electrolysis trough 201 work number in single hydrogen plant 200 changes, the aperture of the adjustable 103 of aperture that corresponds changes to the demand of the coolant liquid volume of the alkali lye cooler 204 that the adaptation corresponds hydrogen plant 200.
In a second aspect, the present invention provides a hydrogen production system 1000, which includes a hydrogen production apparatus 200 and a cooling liquid cooling apparatus 100 as described in any one of the above embodiments.
The hydrogen production device 200 comprises an electrolytic bath 201, a gas-liquid separator 203, an alkali liquor cooler 204 and a temperature detection piece 202, wherein an outlet of the electrolytic bath 201 is communicated with an inlet of the gas-liquid separator 203, a liquid outlet of the gas-liquid separator 203 is communicated with an alkali liquor inlet of the alkali liquor cooler 204, an alkali liquor outlet of the alkali liquor cooler 204 is communicated with an inlet of the electrolytic bath 201, the temperature detection piece 202 is arranged on a communication pipeline 207 which is connected with the inlet of the gas-liquid separator 203 and the outlet of the electrolytic bath 201, and the temperature detection piece 202 is in communication connection with the opening degree adjustable piece 103 of the cooling liquid cooling device 100.
When the hydrogen production device 200 works, gas and alkali liquor discharged from the outlet of the electrolytic tank 201 enter the gas-liquid separator 203, and after gas-liquid separation, the alkali liquor enters the electrolytic tank 201 from the inlet of the electrolytic tank 201 along the alkali liquor outlet of the gas-liquid separator 203. Because the temperature detection part 202 is arranged on the communication pipeline 207 which is connected with the inlet of the gas-liquid separator 203 and the outlet of the electrolytic bath 201, the temperature in the communication pipeline 207 can be detected in real time, a temperature signal is transmitted to the opening-adjustable part 103 of the cooling liquid cooling device 100 to adjust the opening of the opening-adjustable part, and the pressure detection part 102 on the cooling liquid cooling device 100 adjusts the frequency of the cooling liquid circulating pump 101 according to the detected pressure signal so as to match the flow of the required cooling liquid and save electric energy.
In some embodiments, the number of the electrolytic cells 201 is at least 1, and when the number of the electrolytic cells 201 is at least 2, the outlets of all the electrolytic cells 201 are communicated with the communication pipeline 207, and the temperature detection element 202 is located at the downstream of the combined outlets of all the electrolytic cells 201, so as to realize accurate detection of the temperature of the liquid discharged from all the electrolytic cells 201 in the working state, and improve the accuracy of temperature detection.
Further, the utility model discloses a vapour and liquid separator 203 includes alkali-hydrogen separator 203a and oxygen alkali separator 203b, and alkali-hydrogen separator 203 a's hydrogen export is located alkali-hydrogen separator 203 a's top, and alkali-hydrogen separator 203 a's lye export is located alkali-hydrogen separator 203 a's bottom, and alkali-oxygen separator 203 b's oxygen export is located alkali-oxygen separator 203 b's top, and alkali-oxygen separator 203 b's lye export is located alkali-oxygen separator 203 b's bottom.
The communication pipeline 207 comprises a hydrogen-alkali communication pipeline 207a and an oxygen-alkali communication pipeline 207b, and the outlet of the electrolytic cell 201 comprises a hydrogen-alkali outlet of the electrolytic cell 201 and an oxygen-alkali outlet of the electrolytic cell 201.
The hydrogen-alkali outlets of all the electrolytic cells 201 are respectively communicated with a hydrogen-alkali communication pipeline 207a, and the outlet of the hydrogen-alkali communication pipeline 207a is communicated with the hydrogen-alkali inlet of the hydrogen-alkali separator 203 a. The oxygen-alkali outlets of all the electrolytic cells 201 are respectively communicated with an oxygen-alkali communication pipeline 207b, and the outlet of the oxygen-alkali communication pipeline 207b is communicated with the oxygen-alkali inlet of the oxygen-alkali separator 203 b. The alkali liquor outlet of the hydrogen-alkali separator 203a and the alkali liquor outlet of the oxygen-alkali separator 203b are communicated to the alkali liquor inlet of the alkali liquor cooler 204 through an alkali liquor pipeline 205, and the alkali liquor outlet of the alkali liquor cooler 204 is communicated with the inlets of the electrolytic tanks 201 respectively.
The temperature detection member 202 is installed on the hydrogen-alkali communication pipe 207a and is located downstream after the hydrogen-alkali outlets of all the electrolytic cells 201 are merged together. Of course, the temperature detecting member 202 may be installed on the oxygen-alkali communication pipe 207b and located downstream after the oxygen-alkali outlets of all the electrolytic cells 201 are combined together.
Further, the utility model discloses a hydrogen plant 200 still includes hydrogen cooler 208 and oxygen cooler 209, and hydrogen cooler 208's hydrogen import and hydrogen outlet intercommunication of alkali-hydrogen separator 203a, oxygen cooler 209's oxygen import and alkali-hydrogen separator 203 b's oxygen outlet intercommunication, hydrogen cooler 208's coolant liquid import and oxygen cooler 209's coolant liquid import respectively with the export intercommunication of cooling liquid cooling device 100's branch pipeline 105. Namely, the hydrogen separated by the hydrogen-alkali separator 203a is cooled by the hydrogen cooler 208 and then delivered to the required position, the oxygen separated by the oxygen-alkali separator 203b is cooled by the oxygen cooler 209 and then delivered to the required position, and the required cooling liquid and the cooling liquid for cooling the alkali cooler 204 are both from the cooling liquid cooling device 100, so that the separate arrangement of the oxygen cooler 209 and the hydrogen cooler 208 for supplying the cooling liquid is avoided, the device is simplified, and the cost is reduced.
In some embodiments, hydrogen production apparatus 200 further comprises an alkali liquid pump 206, wherein an inlet of alkali liquid pump 206 is communicated with an alkali liquid outlet of alkali liquid cooler 204, and outlets of alkali liquid pump 206 are respectively communicated with inlets of each electrolytic cell 201. Namely, the alkaline liquid pump 206 of the present invention sends the alkaline liquid pump 206 separated by the gas-liquid separator 203 into the electrolytic bath 201.
Further, the utility model discloses a lye pump 206 is the variable frequency pump, is convenient for adjust lye pump 206's output according to the difference of electrolysis trough 201 work number, has saved the energy on the one hand, and on the other hand has avoided pumping the gas in the vapour and liquid separator 203 to the electrolysis trough 201 in.
Of course, it will be appreciated that the lye pump 206 may also be configured as a fixed frequency pump.
In some embodiments, the number of hydrogen-producing assemblies 200 is at least 1, and when the number of hydrogen-producing assemblies 200 is 1, as shown in FIG. 1.
When the number of the hydrogen production devices 200 is 2 or more than 2, the pressure detection part 102 is arranged on a main pipeline 104 with an inlet communicated with an outlet of the cooling liquid circulating pump 101, the main pipeline 104 is divided into at least 2 sub-pipelines at the downstream of the pressure detection part 102, the sub-pipelines are arranged in one-to-one correspondence with the hydrogen production devices 200, the outlet of each sub-pipeline is communicated with a cooling liquid inlet of an alkali liquid cooler 204 corresponding to the hydrogen production device 200, at least 1 opening-adjustable part 103 is respectively arranged on each sub-pipeline, and all the opening-adjustable parts 103 are respectively in communication connection with the temperature detection part 202.
The utility model provides a during hydrogen manufacturing system 1000 uses, hydrogen and alkali lye flow into alkali-hydrogen separator 203a from the alkali-hydrogen export of electrolysis trough 201, oxygen and alkali lye flow into alkali-oxygen separator 203b from the alkali-oxygen export of electrolysis trough 201, then, the alkali lye that flows out from the alkali lye export of the bottom of alkali-hydrogen separator 203a and the alkali lye that flows out from the alkali lye export of the bottom of alkali-oxygen separator 203b get into alkali lye cooler 204 together, the alkali lye after the cooling is sent into electrolysis trough 201 by lye pump 206. An opening-adjustable part 103 is arranged on a medium inlet pipeline at the cold side of the alkali liquor cooler 204, when the input power of the electrolytic bath 201 or the working number of the electrolytic bath 201 changes to cause the alkali liquor flow to change, the opening-adjustable part 103 automatically adjusts the opening to adjust the cooling water flow to control the alkali liquor temperature, the outlet pressure of the cooling liquid circulating pump 101 changes, and the outlet pressure is adjusted to be at a preset pressure value by adjusting the frequency of the cooling liquid circulating pump 101.
It should be noted that the terms indicating the upstream and downstream directions in the present specification are set in terms of the flow direction of the liquid in the circuit, and are not intended to have any other specific meanings for convenience of description.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the present invention disclosed above are intended to aid in the description of the invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (13)
1. A coolant cooling apparatus (100) for providing coolant to a hydrogen plant (200), comprising:
the cooling liquid circulating pump (101), the cooling liquid circulating pump (101) is a variable frequency pump;
the pressure detection piece (102) is installed at an outlet of the cooling liquid circulating pump (101), and is in communication connection with the cooling liquid circulating pump (101) so that the cooling liquid circulating pump (101) can adjust the output pressure to a preset pressure value;
the inlet of the opening-adjustable part (103) is communicated with the outlet of the cooling liquid circulating pump (101), the opening-adjustable part (103) is positioned at the downstream of the pressure detection part (102), and the outlet of the opening-adjustable part is communicated with the cooling liquid inlet of an alkali liquid cooler (204) of the hydrogen production device (200).
2. The coolant cooling device (100) according to claim 1, characterized in that the pressure detection element (102) is a pressure transducer which is connected in communication with a frequency converter of the coolant circulation pump (101);
when the pressure value detected by the pressure detection part (102) is smaller than the preset pressure value, the frequency of the cooling liquid circulating pump (101) is increased;
when the pressure value detected by the pressure detection member (102) is greater than the preset pressure value, the frequency of the coolant circulation pump (101) is reduced.
3. The cooling liquid cooling device (100) according to claim 1, wherein a temperature detecting member (202) is installed downstream after the outlets of all the electrolytic cells (201) of the hydrogen production device (200) are merged together, and the opening degree adjustable member (103) is in communication connection with the temperature detecting member (202) and is used for adjusting the opening degree according to the temperature detected by the temperature detecting member (202).
4. The cooling liquid cooling device (100) as claimed in claim 3, wherein said opening degree adjustable member (103) is an adjusting valve, and said temperature detecting member (202) is a temperature detecting sensor;
when the temperature value detected by the temperature detection piece (202) is greater than a preset temperature value, the opening degree of the opening degree adjustable piece (103) is increased;
when the temperature value detected by the temperature detection part (202) is smaller than the preset temperature value, the opening degree of the opening degree adjustable part (103) is reduced.
5. The cooling liquid cooling device (100) according to claim 4, further comprising a main pipeline (104) and a branch pipeline (105), wherein the main pipeline (104) is communicated with the cooling liquid circulating pump (101) and the lye cooler (204), and an inlet of the branch pipeline (105) is communicated with the main pipeline (104) and is located at the downstream of the pressure detecting member (102) and the upstream of the opening degree adjustable member (103);
the branch pipeline (105) is used for conveying cooling liquid to a hydrogen cooler and an oxygen cooler of the hydrogen production device (200).
6. The coolant cooling apparatus (100) of any one of claims 1 to 5 wherein said coolant cooling apparatus (100) provides coolant to at least 1 of said hydrogen-producing assemblies (200);
when the cooling liquid cooling device (100) provides cooling liquid for at least 2 hydrogen production devices (200), the number of the opening-adjustable parts (103) is at least 2, the pressure detection part (102) is installed on a main pipeline (104) with an inlet communicated with an outlet of the cooling liquid circulating pump (101), the main pipeline (104) is divided into at least 2 sub-pipelines at the downstream of the pressure detection part (102), the sub-pipelines are arranged in one-to-one correspondence with the hydrogen production devices (200), the outlets of the sub-pipelines are communicated with a cooling liquid inlet of an alkali liquid cooler (204) corresponding to the hydrogen production devices (200), and at least 1 opening-adjustable part (103) is installed on each sub-pipeline.
7. A hydrogen production system (1000) comprising a hydrogen production apparatus (200) and a coolant cooling apparatus (100) according to any one of claims 1 to 6;
the hydrogen production device (200) comprises an electrolytic cell (201), a gas-liquid separator (203), an alkali liquor cooler (204) and a temperature detection piece (202), wherein an outlet of the electrolytic cell (201) is communicated with an inlet of the gas-liquid separator (203), a liquid outlet of the gas-liquid separator (203) is communicated with an alkali liquor inlet of the alkali liquor cooler (204), an alkali liquor outlet of the alkali liquor cooler (204) is communicated with an inlet of the electrolytic cell (201), and the temperature detection piece (202) is arranged on a communication pipeline (207) communicating the inlet of the gas-liquid separator (203) and the outlet of the electrolytic cell (201);
the temperature detection part (202) is in communication connection with the opening-adjustable part (103) of the cooling liquid cooling device (100).
8. The hydrogen production system (1000) according to claim 7, wherein the hydrogen production assembly (200) further comprises an alkaline pump (206);
the inlet of the lye pump (206) is communicated with the lye outlet of the lye cooler (204), and the outlet of the lye pump (206) is communicated with the inlet of the electrolytic bath (201).
9. The system (1000) for producing hydrogen according to claim 8, wherein the lye pump (206) is a variable frequency pump.
10. The hydrogen production system (1000) according to claim 7, wherein the number of the electrolytic cells (201) is at least 1, and when the number of the electrolytic cells (201) is at least 2, the outlets of all the electrolytic cells (201) are communicated with the communication pipe (207), and the temperature detecting member (202) is located downstream after the outlets of all the electrolytic cells (201) are combined together.
11. The system (1000) for producing hydrogen of claim 10, wherein the gas-liquid separator (203) comprises a hydrogen-base separator (203 a) and an oxygen-base separator (203 b);
the communication pipeline (207) comprises a hydrogen-alkali communication pipeline (207 a) and an oxygen-alkali communication pipeline (207 b);
the outlet of the electrolytic cell (201) comprises a hydrogen-alkali outlet of the electrolytic cell (201) and an oxygen-alkali outlet of the electrolytic cell (201);
the hydrogen-alkali outlets of all the electrolytic cells (201) are respectively communicated with the hydrogen-alkali communication pipeline (207 a), and the outlet of the hydrogen-alkali communication pipeline (207 a) is communicated with the hydrogen-alkali inlet of the hydrogen-alkali separator (203 a);
the oxygen-alkali outlets of all the electrolytic cells (201) are respectively communicated with the oxygen-alkali communication pipeline (207 b), and the outlet of the oxygen-alkali communication pipeline (207 b) is communicated with the oxygen-alkali inlet of the oxygen-alkali separator (203 b);
an alkali liquor outlet of the hydrogen-alkali separator (203 a) and an alkali liquor outlet of the oxygen-alkali separator (203 b) are communicated to an alkali liquor inlet of the alkali liquor cooler (204) through alkali liquor pipelines (205), and alkali liquor outlets of the alkali liquor cooler (204) are respectively communicated with inlets of the electrolytic tanks (201);
the temperature detection piece (202) is arranged on the hydrogen-alkali communication pipeline (207 a) and is positioned at the downstream of the hydrogen-alkali outlets of all the electrolytic cells (201) after being combined together; or the temperature detection piece (202) is arranged on the oxygen-alkali communication pipeline (207 b) and is positioned at the downstream of the oxygen-alkali outlets of all the electrolytic cells (201) after being combined together.
12. The system (1000) for producing hydrogen of claim 11 wherein the hydrogen plant (200) further comprises a hydrogen cooler (208) and an oxygen cooler (209);
the hydrogen inlet of the hydrogen cooler (208) is communicated with the hydrogen outlet of the alkali-hydrogen separator (203 a), and the oxygen inlet of the oxygen cooler (209) is communicated with the oxygen outlet of the alkali-oxygen separator (203 b);
and a cooling liquid inlet of the hydrogen cooler (208) and a cooling liquid inlet of the oxygen cooler (209) are respectively communicated with an outlet of a branch pipeline (105) of the cooling liquid cooling device (100).
13. The hydrogen production system (1000) according to any of claims 7 to 12, wherein the number of hydrogen production devices (200) is at least 1;
when the number of hydrogen manufacturing installation (200) is 2 or more than 2, pressure detection spare (102) of cooling liquid cooling device (100) are installed and are imported the intercommunication on main pipeline (104) of the export of coolant liquid circulating pump (101), main pipeline (104) divide into 2 at least sub-pipelines in the low reaches of pressure detection spare (102), sub-pipeline with hydrogen manufacturing installation (200) one-to-one sets up, and each the export of sub-pipeline with correspond the coolant liquid import intercommunication of alkali lye cooler (204) of hydrogen manufacturing installation (200), every install at least 1 respectively on the sub-pipeline adjustable component of aperture (103), all adjustable component of aperture (103) equally divide respectively with temperature detection spare (202) communication connection.
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