CN116425117A - Hydrogen purification control device and control method thereof - Google Patents
Hydrogen purification control device and control method thereof Download PDFInfo
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- CN116425117A CN116425117A CN202310424375.XA CN202310424375A CN116425117A CN 116425117 A CN116425117 A CN 116425117A CN 202310424375 A CN202310424375 A CN 202310424375A CN 116425117 A CN116425117 A CN 116425117A
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- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 175
- 239000001257 hydrogen Substances 0.000 title claims abstract description 175
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 155
- 238000000746 purification Methods 0.000 title claims abstract description 103
- 238000000034 method Methods 0.000 title claims abstract description 29
- 239000002994 raw material Substances 0.000 claims abstract description 94
- 238000002386 leaching Methods 0.000 claims abstract description 57
- 150000002431 hydrogen Chemical class 0.000 claims abstract description 21
- 230000008859 change Effects 0.000 claims abstract description 12
- 238000012545 processing Methods 0.000 claims abstract description 8
- 238000005265 energy consumption Methods 0.000 claims abstract description 6
- 238000001179 sorption measurement Methods 0.000 claims description 187
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 91
- 238000006555 catalytic reaction Methods 0.000 claims description 63
- 238000012544 monitoring process Methods 0.000 claims description 61
- 229910052799 carbon Inorganic materials 0.000 claims description 41
- 238000013475 authorization Methods 0.000 claims description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 32
- 239000007921 spray Substances 0.000 claims description 17
- 239000007789 gas Substances 0.000 claims description 16
- 239000007787 solid Substances 0.000 claims description 14
- 238000013461 design Methods 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 11
- 239000012535 impurity Substances 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 10
- 238000006477 desulfuration reaction Methods 0.000 claims description 9
- 230000023556 desulfurization Effects 0.000 claims description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 239000013618 particulate matter Substances 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 3
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 claims description 3
- 238000010828 elution Methods 0.000 description 21
- 238000005406 washing Methods 0.000 description 9
- 239000000126 substance Substances 0.000 description 7
- 230000008569 process Effects 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- -1 pressure Chemical class 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/50—Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification
- C01B3/52—Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification by contacting with liquids; Regeneration of used liquids
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/50—Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/50—Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification
- C01B3/56—Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification by contacting with solids; Regeneration of used solids
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Inorganic Chemistry (AREA)
- Separation Of Gases By Adsorption (AREA)
Abstract
The invention discloses a hydrogen purification control device and a control method thereof, wherein the control method comprises the steps of firstly detecting the operation condition of each component, starting a leaching unit, detecting the parameters of raw material hydrogen, transmitting the data information of the parameters to a PLC control system, comparing the product of the flow of the raw material hydrogen and the purity of the hydrogen with the product of the processing flow and the purity of a rated system through calculation, if the product is more than 0.8, the system does not change a preset operation program, and the system normally operates; if the load of the hydrogen purification system is less than 0.8, the system load is reduced, in order to reduce unit energy consumption and ensure system safety, the PLC control system outputs signals to each unit and automatically adjusts the operation parameters of each unit so as to adapt to the change of the technological parameters of the system, and the control method of the hydrogen purification system can automatically adjust the operation parameters of each unit according to the change of the technological parameters of raw material hydrogen, thereby obviously improving the efficiency of the whole purification system, reducing unit energy consumption and improving the system safety.
Description
Technical Field
The invention relates to the technical field of hydrogen, in particular to a hydrogen purification control device and a control method thereof.
Background
The traditional chemical enterprises are taken as the main production method of the hydrogen, a large amount of industrial hydrogen is combusted by being taken as fuel in a low efficiency way, and even is directly discharged into the atmosphere, so that waste and pollution are caused, the low-purity industrial hydrogen is purified and then utilized, the energy sources can be greatly saved, the emission of resource gas is reduced, and the energy conservation and emission reduction effects are good;
because the components of the industrial discharged hydrogen are complex, no economic and effective single technical means can completely remove the impurity gas at one time, generally, a mode of combining a plurality of chemical separation units is adopted to remove the impurity gas contained in the hydrogen one by one, for example, a leaching device is adopted to remove solid particles in raw material hydrogen, organic gas impurities easy to dissolve in water and the like; removing trace sulfur in the hydrogen by adopting an activated carbon adsorption means; a pressure swing adsorption separation unit is adopted to separate weakly adsorbed impurities with higher component content in the hydrogen; the temperature swing adsorption unit is adopted, so that impurities easy to adsorb can be removed efficiently; the catalytic reaction unit is adopted to decompose residual trace impurity gas and the like, and because a plurality of chemical units are combined together, the process is complex, the control difficulty is high, and because the flow, the components and other parameters of raw material hydrogen can also be changed due to the change of a main process, each chemical unit cannot be actively and timely adapted, and the operation parameters of each unit are manually adjusted, so that the control difficulty is increased, and the efficiency of the whole system is reduced.
Disclosure of Invention
This section is intended to outline some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description summary and in the title of the application, to avoid obscuring the purpose of this section, the description summary and the title of the invention, which should not be used to limit the scope of the invention.
The present invention has been made in view of the above and/or problems occurring in the conventional hydrogen purification control apparatus and control method thereof.
Therefore, the invention aims to solve the problems that how to combine a plurality of chemical units, the process is complex, the control difficulty is high, and because the flow, components and other parameters of raw material hydrogen can be changed due to the change of the main process, each chemical unit can not be actively and timely adapted, and the operation parameters of each unit are required to be manually adjusted, the control difficulty is increased, and the efficiency of the whole system is reduced.
In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a hydrogen purification controlling means and control method thereof, it includes, raw materials hydrogen passes through the pipe connection drip washing unit, and the drip washing unit passes through the pipe connection active carbon adsorption unit, and the active carbon adsorption unit passes through the pipe connection catalytic reaction deoxidization unit, and catalytic reaction deoxidization unit passes through the pipe connection pressure swing adsorption purification unit, and pressure swing adsorption purification unit passes through the pipe connection temperature swing adsorption unit, is equipped with monitor meter in the terminal delivery outlet department of every unit, still includes PLC control system, and PLC control system connects data contrast analysis unit, authorized control unit and data monitoring unit, the monitor meter that raw materials hydrogen terminal connects is connected to data contrast analysis unit, authorized control unit is connected to drip washing unit, active carbon adsorption unit, catalytic reaction deoxidization unit, pressure swing adsorption purification unit and temperature swing adsorption unit, drip washing unit, active carbon adsorption unit, catalytic reaction deoxidization unit, pressure swing adsorption purification unit and temperature swing adsorption unit's terminal delivery outlet department monitor meter is connected to data monitoring unit.
As a preferred embodiment of the hydrogen purification control device and the control method thereof, the invention provides the following steps: the control method comprises the steps of starting a detection mechanism before starting a leaching unit, analyzing parameters of a monitoring instrument at an output port of a raw material hydrogen terminal through a data comparison analysis unit, wherein the parameters comprise pressure, flow, temperature and components, comparing the product of the flow of raw material hydrogen and the hydrogen purity with the product of the rated system processing flow and the target purity, if the product is larger than 0.8, the system does not change a preset operation program, the system normally runs, if the system load is smaller than 0.8, the system load is reduced, and in order to reduce unit energy consumption and ensure the system safety, an authorization control unit of a PLC control system outputs signals and automatically adjusts the operation parameters of each unit so as to adapt to the change of the technological parameters of the system.
As a preferred embodiment of the hydrogen purification control device and the control method thereof, the invention provides the following steps: when the product of the flow of the raw material hydrogen and the purity of the hydrogen is compared with the product of the rated system treatment flow and the target purity to obtain a numerical value larger than 0.8, the raw material hydrogen sequentially enters a leaching unit, an activated carbon adsorption desulfurization unit, a catalytic reaction deoxidization unit, a pressure swing adsorption purification unit and a temperature swing adsorption unit, and each unit purifies the hydrogen according to the original design parameters.
As a preferred embodiment of the hydrogen purification control device and the control method thereof, the invention provides the following steps: when the product of the flow rate of the raw material hydrogen and the hydrogen purity is compared with the product of the rated system processing flow rate and the target purity, the numerical value is smaller than 0.8;
according to the detected pressure, flow rate, temperature and components, the components comprise solid particulate matter content, oxygen content, hydrogen purity, carbon monoxide concentration and other impurity concentration:
firstly, a valve entering the leaching unit is opened, the water quantity of the leaching unit is reduced by adjusting the motor frequency of the variable-frequency water pump through the authorization control unit, the content of solid particles in the air outlet is monitored at the terminal of the leaching unit, the deviation from the design value is not more than 2%, when the deviation exceeds 2%, the leaching water quantity is gradually increased, and the stable state is finally achieved through continuous iteration;
the raw material hydrogen from the leaching unit enters a catalytic reaction deoxidizing unit, and the reaction temperature is gradually and automatically reduced on the premise of meeting the requirement of the outlet oxygen content index;
the raw material hydrogen from the catalytic reaction deoxidizing unit enters the pressure swing adsorption purifying unit, and the PLC control system automatically prolongs the switching period under the non-stop state, so that the gas release amount in unit time is reduced;
the raw material hydrogen from the pressure swing adsorption purification unit enters a temperature swing adsorption unit, and the adsorption period of the temperature swing adsorption unit is gradually adjusted on the premise of meeting the requirement of the outlet hydrogen purification index, so that the concentration of CO deviates from the design value by not more than 2 percent
Finally, hydrogen with target hydrogen purity is obtained from the temperature swing adsorption unit.
As a preferred embodiment of the hydrogen purification control device and the control method thereof, the invention provides the following steps: the rated purity of the raw material hydrogen is A, the design period of the whole set of purification process is T, the final target hydrogen purity is At, Q is used for representing the rated flow of the raw material hydrogen, the actual flow of the raw material hydrogen is Q, and the raw material hydrogen is discharged from the leaching unit according to the detected solid particulate matter content a.
As a preferred embodiment of the hydrogen purification control device and the control method thereof, the invention provides the following steps: the leaching unit comprises a shell, the top of shell is provided with the water receiving pipe, the top fixedly connected with mounting disc of water receiving pipe, the inner chamber of water receiving pipe is provided with the flow control valve, the bottom of water receiving pipe is provided with the shower board, the right side of shell is provided with the gas receiving pipe, the one end of gas receiving pipe is provided with the connection pad, the left side of shell is provided with the blast pipe, the inner chamber of blast pipe is provided with solid particle content monitor.
As a preferred embodiment of the hydrogen purification control device and the control method thereof, the invention provides the following steps: the active carbon adsorption desulfurization unit includes the casing, the right side of casing is provided with the intake pipe, the one end of intake pipe is provided with the adapter sleeve, the left side of casing is provided with the outlet duct, the inner chamber of outlet duct is provided with the monitor, the equal fixedly connected with installation shell in top and bottom of casing inner chamber, the inner chamber swing joint of installation shell has the mounting panel, the surface through connection of installation shell has the bolt, bolt and mounting panel through connection, one side fixedly connected with active carbon filter that the mounting panel is relative.
As a preferred embodiment of the hydrogen purification control device and the control method thereof, the invention provides the following steps: the both sides of spray plate bottom all fixedly connected with breakwater, the one side that the breakwater kept away from the spray plate is fixedly connected with the inner wall of shell.
As a preferred embodiment of the hydrogen purification control device and the control method thereof, the invention provides the following steps: the top and the bottom on the right side of the inner cavity of the shell are fixedly connected with inclined plates, and the inclined plates are made of acrylic.
As a preferred embodiment of the hydrogen purification control device and the control method thereof, the invention provides the following steps: the temperature swing adsorption device comprises a dryer, wherein one end of the dryer is communicated with an exhaust port of the temperature swing adsorption unit through a connecting pipe, and the bottom of the dryer is provided with the exhaust port.
The invention has the beneficial effects that: the invention can automatically adjust the operation parameters of each chemical unit according to the change of the technological parameters of the raw material hydrogen, can obviously improve the efficiency of the whole purification system, reduce the unit energy consumption and improve the system safety.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:
FIG. 1 is a schematic system diagram of a hydrogen purification control method of the present invention.
Fig. 2 is a perspective view of a leaching unit of the hydrogen purification control apparatus of the present invention.
FIG. 3 is a perspective view of an activated carbon adsorption desulfurization unit of the hydrogen purification control apparatus of the present invention.
FIG. 4 is a schematic cross-sectional view showing the structure of a leaching unit of the hydrogen purification control apparatus of the present invention.
FIG. 5 is a schematic sectional view showing the structure of an activated carbon adsorption desulfurization unit of the hydrogen purification control apparatus of the present invention.
FIG. 6 is a partially enlarged schematic illustration of the hydrogen purification control apparatus of the present invention at A in FIG. 5.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present invention is not limited to the specific embodiments disclosed below.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
This embodiment provides a hydrogen purification controlling means, including raw materials hydrogen through the pipe connection drip washing unit, drip washing unit passes through the pipe connection active carbon adsorption unit, and the active carbon adsorption unit passes through the catalytic reaction deoxidization unit of pipe connection, and catalytic reaction deoxidization unit passes through the pipe connection pressure swing adsorption purification unit, and pressure swing adsorption purification unit passes through the pipe connection temperature swing adsorption unit, is equipped with monitor at the terminal delivery outlet department of every unit, its characterized in that: the device comprises a raw material hydrogen terminal, a data comparison analysis unit, an authorization control unit, a data monitoring unit, a PLC control system, a monitoring instrument connected with the raw material hydrogen terminal, a leaching unit, an activated carbon adsorption unit, a catalytic reaction deoxidization unit, a pressure swing adsorption purification unit and a temperature swing adsorption unit, wherein the PLC control system is connected with the data comparison analysis unit, the authorization control unit and the data monitoring unit, the monitoring instrument connected with the raw material hydrogen terminal is connected with the data comparison analysis unit, and the authorization control unit is connected with the leaching unit, the activated carbon adsorption unit, the catalytic reaction deoxidization unit, the pressure swing adsorption purification unit and the temperature swing adsorption unit.
The control method comprises the steps of starting a detection mechanism before starting a leaching unit, analyzing parameters of a monitoring instrument at an output port of a raw material hydrogen terminal through a data comparison analysis unit, wherein the parameters comprise pressure, flow, temperature and components, comparing the product of the flow of raw material hydrogen and the hydrogen purity with the product of the rated system processing flow and the target purity, if the product is larger than 0.8, the system does not change a preset operation program, the system normally runs, if the system load is smaller than 0.8, the system load is reduced, and in order to reduce unit energy consumption and ensure the system safety, an authorization control unit of a PLC control system outputs signals and automatically adjusts the operation parameters of each unit so as to adapt to the change of the technological parameters of the system.
Example 2
This embodiment is based on the previous embodiment.
The device comprises a raw material hydrogen, an elution unit, an active carbon adsorption unit, a catalytic reaction deoxidization unit, a pressure swing adsorption purification unit, a temperature swing adsorption unit and a monitoring instrument, wherein the raw material hydrogen is connected with the elution unit through a pipeline, the elution unit is connected with the active carbon adsorption unit through a pipeline, the active carbon adsorption unit is connected with the catalytic reaction deoxidization unit through a pipeline, the catalytic reaction deoxidization unit is connected with the pressure swing adsorption purification unit through a pipeline, and the pressure swing adsorption purification unit is connected with the temperature swing adsorption unit through a pipeline, and the monitoring instrument is arranged at a terminal output port of each unit, and is characterized in that: the device comprises a raw material hydrogen terminal, a data comparison analysis unit, an authorization control unit, a data monitoring unit, a PLC control system, a monitoring instrument connected with the raw material hydrogen terminal, a leaching unit, an activated carbon adsorption unit, a catalytic reaction deoxidization unit, a pressure swing adsorption purification unit and a temperature swing adsorption unit, wherein the PLC control system is connected with the data comparison analysis unit, the authorization control unit and the data monitoring unit, the monitoring instrument connected with the raw material hydrogen terminal is connected with the data comparison analysis unit, and the authorization control unit is connected with the leaching unit, the activated carbon adsorption unit, the catalytic reaction deoxidization unit, the pressure swing adsorption purification unit and the temperature swing adsorption unit.
When the product of the flow rate and the hydrogen purity of the raw material hydrogen and the product of the rated system treatment flow rate and the target purity are compared to a value greater than 0.8, the raw material hydrogen sequentially enters a leaching unit, an activated carbon adsorption desulfurization unit, a catalytic reaction deoxidization unit, a pressure swing adsorption purification unit and a temperature swing adsorption unit, and each unit purifies the hydrogen according to the original design parameters
Example 3
This embodiment is based on the previous embodiment.
The utility model provides a hydrogen purification controlling means includes that raw materials hydrogen passes through the pipe connection drip washing unit, and the drip washing unit passes through the pipe connection active carbon adsorption unit, and the active carbon adsorption unit passes through the pipe connection catalytic reaction deoxidization unit, and catalytic reaction deoxidization unit passes through the pipe connection pressure swing adsorption purification unit, and pressure swing adsorption purification unit passes through the pipe connection temperature swing adsorption unit, is equipped with monitoring instrument at the terminal delivery outlet department of every unit, its characterized in that: the device comprises a raw material hydrogen terminal, a data comparison analysis unit, an authorization control unit, a data monitoring unit, a PLC control system, a monitoring instrument connected with the raw material hydrogen terminal, a leaching unit, an activated carbon adsorption unit, a catalytic reaction deoxidization unit, a pressure swing adsorption purification unit and a temperature swing adsorption unit, wherein the PLC control system is connected with the data comparison analysis unit, the authorization control unit and the data monitoring unit, the monitoring instrument connected with the raw material hydrogen terminal is connected with the data comparison analysis unit, and the authorization control unit is connected with the leaching unit, the activated carbon adsorption unit, the catalytic reaction deoxidization unit, the pressure swing adsorption purification unit and the temperature swing adsorption unit.
When the product of the flow rate and the hydrogen purity of the raw material hydrogen is compared with the product of the rated system processing flow rate and the target purity, the comparison value is smaller than 0.8;
according to the detected pressure, flow rate, temperature and components, the components comprise solid particulate matter content, oxygen content, hydrogen purity, carbon monoxide concentration and other impurity concentration:
firstly, a valve entering the leaching unit is opened, the water quantity of the leaching unit is reduced by adjusting the motor frequency of the variable-frequency water pump through the authorization control unit, the content of solid particles in the air outlet is monitored at the terminal of the leaching unit, the deviation from the design value is not more than 2%, when the deviation exceeds 2%, the leaching water quantity is gradually increased, and the stable state is finally achieved through continuous iteration;
the raw material hydrogen from the leaching unit enters a catalytic reaction deoxidizing unit, and the reaction temperature is gradually and automatically reduced on the premise of meeting the requirement of the outlet oxygen content index;
the raw material hydrogen from the catalytic reaction deoxidizing unit enters the pressure swing adsorption purifying unit, and the PLC control system automatically prolongs the switching period under the non-stop state, so that the gas release amount in unit time is reduced;
the raw material hydrogen from the pressure swing adsorption purification unit enters a temperature swing adsorption unit, and the adsorption period of the temperature swing adsorption unit is gradually adjusted on the premise of meeting the requirement of the outlet hydrogen purification index, so that the concentration of CO is not more than 2% away from the design value;
finally, hydrogen with target hydrogen purity is obtained from the temperature swing adsorption unit.
Example 4
This embodiment is based on the previous embodiment.
The device comprises a raw material hydrogen, an elution unit, an active carbon adsorption unit, a catalytic reaction deoxidization unit, a pressure swing adsorption purification unit, a temperature swing adsorption unit and a monitoring instrument, wherein the raw material hydrogen is connected with the elution unit through a pipeline, the elution unit is connected with the active carbon adsorption unit through a pipeline, the active carbon adsorption unit is connected with the catalytic reaction deoxidization unit through a pipeline, the catalytic reaction deoxidization unit is connected with the pressure swing adsorption purification unit through a pipeline, and the pressure swing adsorption purification unit is connected with the temperature swing adsorption unit through a pipeline, and the monitoring instrument is arranged at a terminal output port of each unit, and is characterized in that: the device comprises a raw material hydrogen terminal, a data comparison analysis unit, an authorization control unit, a data monitoring unit, a PLC control system, a monitoring instrument connected with the raw material hydrogen terminal, a leaching unit, an activated carbon adsorption unit, a catalytic reaction deoxidization unit, a pressure swing adsorption purification unit and a temperature swing adsorption unit, wherein the PLC control system is connected with the data comparison analysis unit, the authorization control unit and the data monitoring unit, the monitoring instrument connected with the raw material hydrogen terminal is connected with the data comparison analysis unit, and the authorization control unit is connected with the leaching unit, the activated carbon adsorption unit, the catalytic reaction deoxidization unit, the pressure swing adsorption purification unit and the temperature swing adsorption unit.
The rated purity of the raw material hydrogen is A, the design period of the whole set of purification process is T, the final target hydrogen purity is At, Q is the rated flow of the raw material hydrogen, the actual flow of the raw material hydrogen is Q, and the raw material hydrogen is discharged from the leaching unit according to the detected solid particle content a.
Example 5
This embodiment is based on the previous embodiment.
The device comprises a raw material hydrogen, an elution unit, an active carbon adsorption unit, a catalytic reaction deoxidization unit, a pressure swing adsorption purification unit, a temperature swing adsorption unit and a monitoring instrument, wherein the raw material hydrogen is connected with the elution unit through a pipeline, the elution unit is connected with the active carbon adsorption unit through a pipeline, the active carbon adsorption unit is connected with the catalytic reaction deoxidization unit through a pipeline, the catalytic reaction deoxidization unit is connected with the pressure swing adsorption purification unit through a pipeline, and the pressure swing adsorption purification unit is connected with the temperature swing adsorption unit through a pipeline, and the monitoring instrument is arranged at a terminal output port of each unit, and is characterized in that: the device comprises a raw material hydrogen terminal, a data comparison analysis unit, an authorization control unit, a data monitoring unit, a PLC control system, a monitoring instrument connected with the raw material hydrogen terminal, a leaching unit, an activated carbon adsorption unit, a catalytic reaction deoxidization unit, a pressure swing adsorption purification unit and a temperature swing adsorption unit, wherein the PLC control system is connected with the data comparison analysis unit, the authorization control unit and the data monitoring unit, the monitoring instrument connected with the raw material hydrogen terminal is connected with the data comparison analysis unit, and the authorization control unit is connected with the leaching unit, the activated carbon adsorption unit, the catalytic reaction deoxidization unit, the pressure swing adsorption purification unit and the temperature swing adsorption unit.
The leaching unit comprises a shell 1, a water receiving pipe 2 is arranged at the top of the shell 1, a mounting plate 3 is fixedly connected at the top of the water receiving pipe 2, a flow regulating valve 4 is arranged in an inner cavity of the water receiving pipe 2, a spray plate 5 is arranged at the bottom of the water receiving pipe 2, a gas receiving pipe 6 is arranged on the right side of the shell 1, a connecting disc 7 is arranged at one end of the gas receiving pipe 6, an exhaust pipe 8 is arranged on the left side of the shell 1, a solid particle content monitor 9 is arranged in the inner cavity of the exhaust pipe 8,
the water receiving pipe 2 is arranged At the axis of the top of the shell 1, four mounting holes are formed in the surface of the mounting plate 3 At the top of the water receiving pipe 2, the water receiving pipe 2 is conveniently connected with an external water supply pipeline, the spray plate 5 is arranged At the top of the inner cavity of the shell 1, the top of the spray plate is communicated with the bottom of the water receiving pipe 2, water of an external water supply system can flow into the inner cavity of the spray plate 5 and evenly spray out through closely arranged spray heads At the bottom of the spray plate 5, the gas receiving pipe 6 is arranged on the right side of the shell 1 and is used for introducing hydrogen to be purified, the exhaust pipe 8 is arranged on the left side of the shell 1 and is used for discharging the hydrogen after leaching to the next processing unit, four limiting frames are arranged At four corners At the top of the spray plate 5 and are used for keeping a certain distance between the spray plate 5 and the top of the inner cavity of the shell 1, raw material hydrogen is discharged from the leaching unit according to the detected solid particle content a divided by the target hydrogen purity At which is smaller than 0.9, and enters the catalytic reaction unit, otherwise, the control unit is enabled to reduce the frequency of the motor of the leaching unit according to the speed of 0.1HZ/min until the minimum water consumption is satisfied on the premise of meeting the requirement of the content of the outlet particle content.
Example 6
This embodiment is based on the previous embodiment.
The device comprises a raw material hydrogen, an elution unit, an active carbon adsorption unit, a catalytic reaction deoxidization unit, a pressure swing adsorption purification unit, a temperature swing adsorption unit and a monitoring instrument, wherein the raw material hydrogen is connected with the elution unit through a pipeline, the elution unit is connected with the active carbon adsorption unit through a pipeline, the active carbon adsorption unit is connected with the catalytic reaction deoxidization unit through a pipeline, the catalytic reaction deoxidization unit is connected with the pressure swing adsorption purification unit through a pipeline, and the pressure swing adsorption purification unit is connected with the temperature swing adsorption unit through a pipeline, and the monitoring instrument is arranged at a terminal output port of each unit, and is characterized in that: the device comprises a raw material hydrogen terminal, a data comparison analysis unit, an authorization control unit, a data monitoring unit, a PLC control system, a monitoring instrument connected with the raw material hydrogen terminal, a leaching unit, an activated carbon adsorption unit, a catalytic reaction deoxidization unit, a pressure swing adsorption purification unit and a temperature swing adsorption unit, wherein the PLC control system is connected with the data comparison analysis unit, the authorization control unit and the data monitoring unit, the monitoring instrument connected with the raw material hydrogen terminal is connected with the data comparison analysis unit, and the authorization control unit is connected with the leaching unit, the activated carbon adsorption unit, the catalytic reaction deoxidization unit, the pressure swing adsorption purification unit and the temperature swing adsorption unit.
The active carbon adsorption desulfurization unit includes casing 10, the right side of casing 10 is provided with intake pipe 11, the one end of intake pipe 11 is provided with adapter sleeve 12, the left side of casing 10 is provided with outlet duct 13, the inner chamber of outlet duct 13 is provided with monitor 14, the top and the equal fixedly connected with installation shell 15 of bottom of casing 10 inner chamber, the inner chamber swing joint of installation shell 15 has mounting panel 16, the surface through-connection of installation shell 15 has bolt 17, bolt 17 and mounting panel 16 through-connection, the relative one side fixedly connected with active carbon filter 18 of mounting panel 16, intake pipe 11 sets up on the right side of casing 10, be used for accessing the hydrogen after the drip washing unit handles, impurity and other gas that contains the peculiar smell in the hydrogen can be filtered to the active carbon filter 18 that the casing 10 inner chamber set up, installation shell 15 has two sets of, set up at the top and the bottom of casing 10 inner chamber respectively, the mounting panel 16 passes through bolt 17 to be fixed in the inner chamber of installation shell 15, the clearance is convenient to dismantle active carbon filter 18.
Example 7
This embodiment is based on the previous embodiment.
The device comprises a raw material hydrogen, an elution unit, an active carbon adsorption unit, a catalytic reaction deoxidization unit, a pressure swing adsorption purification unit, a temperature swing adsorption unit and a monitoring instrument, wherein the raw material hydrogen is connected with the elution unit through a pipeline, the elution unit is connected with the active carbon adsorption unit through a pipeline, the active carbon adsorption unit is connected with the catalytic reaction deoxidization unit through a pipeline, the catalytic reaction deoxidization unit is connected with the pressure swing adsorption purification unit through a pipeline, and the pressure swing adsorption purification unit is connected with the temperature swing adsorption unit through a pipeline, and the monitoring instrument is arranged at a terminal output port of each unit, and is characterized in that: the device comprises a raw material hydrogen terminal, a data comparison analysis unit, an authorization control unit, a data monitoring unit, a PLC control system, a monitoring instrument connected with the raw material hydrogen terminal, a leaching unit, an activated carbon adsorption unit, a catalytic reaction deoxidization unit, a pressure swing adsorption purification unit and a temperature swing adsorption unit, wherein the PLC control system is connected with the data comparison analysis unit, the authorization control unit and the data monitoring unit, the monitoring instrument connected with the raw material hydrogen terminal is connected with the data comparison analysis unit, and the authorization control unit is connected with the leaching unit, the activated carbon adsorption unit, the catalytic reaction deoxidization unit, the pressure swing adsorption purification unit and the temperature swing adsorption unit.
The both sides of spray board 5 bottom are all fixedly connected with breakwater 19, and one side that breakwater 19 kept away from spray board 5 and the inner wall fixed connection of shell 1, breakwater 19 have two sets of, set up respectively in the both sides of spray board 5 bottom, and breakwater 19's setting can make water spray more concentrated, and can simplify the circulation path of hydrogen.
Example 8
This embodiment is based on the previous embodiment.
The device comprises a raw material hydrogen, an elution unit, an active carbon adsorption unit, a catalytic reaction deoxidization unit, a pressure swing adsorption purification unit, a temperature swing adsorption unit and a monitoring instrument, wherein the raw material hydrogen is connected with the elution unit through a pipeline, the elution unit is connected with the active carbon adsorption unit through a pipeline, the active carbon adsorption unit is connected with the catalytic reaction deoxidization unit through a pipeline, the catalytic reaction deoxidization unit is connected with the pressure swing adsorption purification unit through a pipeline, and the pressure swing adsorption purification unit is connected with the temperature swing adsorption unit through a pipeline, and the monitoring instrument is arranged at a terminal output port of each unit, and is characterized in that: the device comprises a raw material hydrogen terminal, a data comparison analysis unit, an authorization control unit, a data monitoring unit, a PLC control system, a monitoring instrument connected with the raw material hydrogen terminal, a leaching unit, an activated carbon adsorption unit, a catalytic reaction deoxidization unit, a pressure swing adsorption purification unit and a temperature swing adsorption unit, wherein the PLC control system is connected with the data comparison analysis unit, the authorization control unit and the data monitoring unit, the monitoring instrument connected with the raw material hydrogen terminal is connected with the data comparison analysis unit, and the authorization control unit is connected with the leaching unit, the activated carbon adsorption unit, the catalytic reaction deoxidization unit, the pressure swing adsorption purification unit and the temperature swing adsorption unit.
The top and the bottom on the right side of the inner cavity of the shell 10 are fixedly connected with inclined plates 20, the inclined plates 20 are made of acrylic, the inclined plates 2 are divided into two groups, and the inclined plates are respectively arranged on the top and the bottom on the right side of the inner cavity of the shell 10 and are used for enabling hydrogen gas accessed by the air inlet pipe 11 to quickly pass through the activated carbon filter plates 18.
Example 9
This embodiment is based on the previous embodiment.
The device comprises a raw material hydrogen, an elution unit, an active carbon adsorption unit, a catalytic reaction deoxidization unit, a pressure swing adsorption purification unit, a temperature swing adsorption unit and a monitoring instrument, wherein the raw material hydrogen is connected with the elution unit through a pipeline, the elution unit is connected with the active carbon adsorption unit through a pipeline, the active carbon adsorption unit is connected with the catalytic reaction deoxidization unit through a pipeline, the catalytic reaction deoxidization unit is connected with the pressure swing adsorption purification unit through a pipeline, and the pressure swing adsorption purification unit is connected with the temperature swing adsorption unit through a pipeline, and the monitoring instrument is arranged at a terminal output port of each unit, and is characterized in that: the device comprises a raw material hydrogen terminal, a data comparison analysis unit, an authorization control unit, a data monitoring unit, a PLC control system, a monitoring instrument connected with the raw material hydrogen terminal, a leaching unit, an activated carbon adsorption unit, a catalytic reaction deoxidization unit, a pressure swing adsorption purification unit and a temperature swing adsorption unit, wherein the PLC control system is connected with the data comparison analysis unit, the authorization control unit and the data monitoring unit, the monitoring instrument connected with the raw material hydrogen terminal is connected with the data comparison analysis unit, and the authorization control unit is connected with the leaching unit, the activated carbon adsorption unit, the catalytic reaction deoxidization unit, the pressure swing adsorption purification unit and the temperature swing adsorption unit.
The hydrogen purification device comprises a dryer, wherein one end of the dryer is communicated with an exhaust port of a temperature swing adsorption unit through a connecting pipe, the bottom of the dryer is provided with the exhaust port, and the dryer is arranged to dry purified hydrogen finally and remove water vapor contained in the hydrogen.
When the system is used, after the system is started, the system firstly detects parameters of raw material hydrogen, including pressure, flow, temperature and components, the pressure is detected by a pressure transmitter, the temperature is detected by thermal resistance or thermocouple, the flow is detected by a flowmeter, the components are detected by a purity detection instrument, signals of the parameter data are summarized to the data comparison analysis unit, after the PLC is logically judged, the PLC instructs each unit to either reduce the frequency or reduce the working temperature or adjust the adsorption period, when the product of the flow of the calculated raw material hydrogen and the purity of the hydrogen is compared with the product of the rated system processing flow and the target purity, the numerical value is smaller than 0.8, the system load is reduced, the authorization control unit starts to adjust the operation parameters of the leaching unit, the catalytic reaction deoxidization unit, the pressure swing adsorption purification unit and the temperature swing adsorption unit, and after the adjustment, the raw material hydrogen starts to sequentially pass through the leaching unit, the active carbon adsorption desulfurization unit, the catalytic reaction deoxidization unit, the pressure swing adsorption purification unit and the temperature swing adsorption unit to purify, and finally the stable product is obtained through the pressure swing adsorption purification unit.
It should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention may be modified or substituted without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered in the scope of the claims of the present invention.
Claims (10)
1. A hydrogen purification control device, characterized in that: the device comprises a raw material hydrogen, a leaching unit, a PLC control system, a data comparison analysis unit, an authorization control unit and a data monitoring unit, wherein the leaching unit is connected with an active carbon adsorption unit through a pipeline, the active carbon adsorption unit is connected with a catalytic reaction deoxidization unit through a pipeline, the catalytic reaction deoxidization unit is connected with a pressure swing adsorption purification unit through a pipeline, the pressure swing adsorption purification unit is connected with a temperature swing adsorption unit through a pipeline, the monitoring unit is arranged at a terminal output port of each unit, the device further comprises the PLC control system, the PLC control system is connected with the data comparison analysis unit, the authorization control unit and the data monitoring unit, the monitoring unit connected with the raw material hydrogen is connected with the data comparison analysis unit, the authorization control unit is connected with the leaching unit, the active carbon adsorption unit, the catalytic reaction deoxidization unit, the pressure swing adsorption purification unit and the temperature swing adsorption unit, and the monitoring instrument at the terminal output ports of the temperature swing adsorption unit.
2. A hydrogen purification control method is characterized in that: the control method comprises the steps of starting a detection mechanism before starting a leaching unit, analyzing parameters of a monitoring instrument at an output port of a raw material hydrogen terminal through a data comparison analysis unit, wherein the parameters comprise pressure, flow, temperature and components, comparing the product of the flow of raw material hydrogen and the hydrogen purity with the product of the rated system treatment flow and the target purity, if the product is more than 0.8, the system does not change a preset operation program, and if the product is less than 0.8, the system normally operates, the system load is reduced, and in order to reduce unit energy consumption and ensure system safety, an authorization control unit of a PLC control system outputs signals and automatically adjusts the operation parameters of each unit so as to adapt to the change of the technological parameters of the system.
3. A hydrogen purification control method as claimed in claim 2, wherein: when the product of the flow of the raw material hydrogen and the purity of the hydrogen is compared with the product of the rated system treatment flow and the target purity to obtain a numerical value larger than 0.8, the raw material hydrogen sequentially enters a leaching unit, an activated carbon adsorption desulfurization unit, a catalytic reaction deoxidization unit, a pressure swing adsorption purification unit and a temperature swing adsorption unit, and each unit purifies the hydrogen according to the original design parameters.
4. A hydrogen purification control method as claimed in claim 3, wherein: when the product of the flow rate of the raw material hydrogen and the hydrogen purity is compared with the product of the rated system processing flow rate and the target purity, the numerical value is smaller than 0.8;
according to the detected pressure, flow rate, temperature and components, the components comprise solid particulate matter content, oxygen content, hydrogen purity, carbon monoxide concentration and other impurity concentration:
firstly, a valve entering the leaching unit is opened, the water quantity of the leaching unit is reduced by adjusting the motor frequency of the variable-frequency water pump through the authorization control unit, the content of solid particles in the air outlet is monitored at the terminal of the leaching unit, the deviation from the design value is not more than 2%, when the deviation exceeds 2%, the leaching water quantity is gradually increased, and the stable state is finally achieved through continuous iteration;
the raw material hydrogen from the leaching unit enters a catalytic reaction deoxidizing unit, and the reaction temperature is gradually and automatically reduced on the premise of meeting the requirement of the outlet oxygen content index;
the raw material hydrogen from the catalytic reaction deoxidizing unit enters the pressure swing adsorption purifying unit, and the PLC control system automatically prolongs the switching period under the non-stop state, so that the gas release amount in unit time is reduced;
the raw material hydrogen from the pressure swing adsorption purification unit enters a temperature swing adsorption unit, and the adsorption period of the temperature swing adsorption unit is gradually adjusted on the premise of meeting the requirement of the outlet hydrogen purification index, so that the concentration of CO is not more than 2% away from the design value;
finally, hydrogen with target hydrogen purity is obtained from the temperature swing adsorption unit.
5. A hydrogen purification control method as claimed in claim 2, wherein: the rated purity of the raw material hydrogen is A, the design period of the whole set of purification process is T, the final target hydrogen purity is At, Q is used for representing the rated flow of the raw material hydrogen, the actual flow of the raw material hydrogen is Q, and the raw material hydrogen is discharged from the leaching unit according to the detected solid particulate matter content a.
6. A hydrogen purification control apparatus as claimed in claim 1, wherein: the leaching unit comprises a shell, the top of shell is provided with the water receiving pipe, the top fixedly connected with mounting disc of water receiving pipe, the inner chamber of water receiving pipe is provided with the flow control valve, the bottom of water receiving pipe is provided with the shower board, the right side of shell is provided with the gas receiving pipe, the one end of gas receiving pipe is provided with the connection pad, the left side of shell is provided with the blast pipe, the inner chamber of blast pipe is provided with solid particle content monitor.
7. A hydrogen purification control apparatus as claimed in claim 1, wherein: the active carbon adsorption desulfurization unit includes the casing, the right side of casing is provided with the intake pipe, the one end of intake pipe is provided with the adapter sleeve, the left side of casing is provided with the outlet duct, the inner chamber of outlet duct is provided with the monitor, the equal fixedly connected with installation shell in top and bottom of casing inner chamber, the inner chamber swing joint of installation shell has the mounting panel, the surface through connection of installation shell has the bolt, bolt and mounting panel through connection, one side fixedly connected with active carbon filter that the mounting panel is relative.
8. A hydrogen purification control apparatus as claimed in claim 6, wherein: the both sides of spray plate bottom all fixedly connected with breakwater, the one side that the breakwater kept away from the spray plate is fixedly connected with the inner wall of shell.
9. A hydrogen purification control apparatus as claimed in claim 7, wherein: the top and the bottom on the right side of the inner cavity of the shell are fixedly connected with inclined plates, and the inclined plates are made of acrylic.
10. A hydrogen purification control apparatus as claimed in claim 1, wherein: the temperature swing adsorption device comprises a dryer, wherein one end of the dryer is communicated with an exhaust port of the temperature swing adsorption unit through a connecting pipe, and the bottom of the dryer is provided with the exhaust port.
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| CN202893152U (en) * | 2012-07-17 | 2013-04-24 | 朱挺 | Intelligent pressure swing adsorption device |
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| CN213538040U (en) * | 2020-11-03 | 2021-06-25 | 河南省科荣气体设备有限公司 | Energy-saving protective gas circulation system of galvanizing continuous annealing furnace |
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| CN202893152U (en) * | 2012-07-17 | 2013-04-24 | 朱挺 | Intelligent pressure swing adsorption device |
| CN109248541A (en) * | 2017-07-12 | 2019-01-22 | 中国石油化工股份有限公司 | Hydrogen recovery system cooperative optimization method and system |
| CN207498061U (en) * | 2017-11-02 | 2018-06-15 | 杭州富阳雷讯科技咨询服务有限公司 | One kind is used for the oxygen-enriched collection system of varying-voltage adsorption nitrogen machine emptying end gas |
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