CN112524479B - Hydrogen storage cylinder gas replacement system, method, device and storage medium - Google Patents
Hydrogen storage cylinder gas replacement system, method, device and storage medium Download PDFInfo
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- CN112524479B CN112524479B CN202011359369.3A CN202011359369A CN112524479B CN 112524479 B CN112524479 B CN 112524479B CN 202011359369 A CN202011359369 A CN 202011359369A CN 112524479 B CN112524479 B CN 112524479B
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- 239000001257 hydrogen Substances 0.000 title claims abstract description 51
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 51
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 33
- 230000000875 corresponding effect Effects 0.000 claims abstract description 65
- 238000011084 recovery Methods 0.000 claims abstract description 31
- 238000006073 displacement reaction Methods 0.000 claims abstract description 7
- 230000001276 controlling effect Effects 0.000 claims description 32
- 230000009471 action Effects 0.000 claims description 30
- 238000007599 discharging Methods 0.000 claims description 7
- 238000004590 computer program Methods 0.000 claims description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 15
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- 238000001514 detection method Methods 0.000 description 5
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- 229910001873 dinitrogen Inorganic materials 0.000 description 3
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- 239000002360 explosive Substances 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000011217 control strategy Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
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Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
- F17C5/002—Automated filling apparatus
- F17C5/005—Automated filling apparatus for gas bottles, such as on a continuous belt or on a merry-go-round
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/002—Details of vessels or of the filling or discharging of vessels for vessels under pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
- F17C13/025—Special adaptations of indicating, measuring, or monitoring equipment having the pressure as the parameter
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/04—Arrangement or mounting of valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
- F17C5/06—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with compressed gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C7/00—Methods or apparatus for discharging liquefied, solidified, or compressed gases from pressure vessels, not covered by another subclass
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/02—Pipe-line systems for gases or vapours
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
-
- 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
- Y02E60/32—Hydrogen storage
-
- 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
- Y02E60/34—Hydrogen distribution
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The present application relates to a hydrogen storage cylinder gas replacement system, method, apparatus and storage medium. The system comprises: a gas displacement device and a processor; the processor acquires an execution mode, and controls the charging valve, the first valve and the second valve in the gas replacement device to execute corresponding actions based on the execution mode, so that gas to be replaced is filled into the gas recovery unit in the gas replacement device through the arrangement pipeline in the gas replacement device, and the filling gas is filled into the gas cylinder through the charging pipeline in the gas replacement device to dilute the residual gas to be replaced in the gas cylinder, so that gas replacement is completed, potential safety hazards caused by manual operation are avoided, the safety coefficient is high, and the replacement efficiency of the gas to be replaced can be improved.
Description
Technical Field
The application relates to the technical field of pressure vessel detection, in particular to a hydrogen storage cylinder gas replacement system, a method, a device and a storage medium.
Background
At present, the traditional residual gas recovery device needs to realize the actions of air intake and air exhaust by a worker through a manual control valve body or a flange, and needs to perform repeated replacement actions to ensure the replacement effect of the air, for example, the detection of a vehicle-mounted hydrogen storage cylinder needs to perform replacement treatment by clean and dry nitrogen, and the requirement that the concentration of a composite hydrogen system is not more than 0.4% needs to be met after the detection, so that the control efficiency of residual gas recovery is low. If the hydrogen storage bottle stores inflammable and explosive gas, the action is careless, and the potential safety hazard is increased.
In the implementation process, the inventor finds that at least the following problems exist in the conventional technology: the current residual gas recovery device has very low recovery efficiency for residual gas.
Disclosure of Invention
In view of the foregoing, it is desirable to provide a hydrogen storage cylinder gas replacement system, method, apparatus, and storage medium that address the above-described issues.
A hydrogen storage cylinder gas replacement system comprises a gas replacement device and a processor;
the gas displacement apparatus includes:
the gas storage unit is used for storing filling gas for replacing gas to be replaced in the gas cylinder;
the inflation pipeline is used for connecting the gas storage unit and the gas cylinder, and an inflation valve is arranged on the inflation pipeline;
the gas recovery unit is used for recovering the gas to be replaced in the gas cylinder;
an exhaust line comprising a first exhaust branch and a second exhaust branch; one end of the first exhaust branch is connected with the gas cylinder, and a first valve is arranged on the first exhaust branch; the second exhaust branch is connected with the gas recovery unit and the gas cylinder, and is provided with a second valve;
the processor is connected with the inflation valve, the first valve and the second valve;
the processor acquires an execution mode, and controls the charging valve, the first valve and the second valve to execute corresponding actions based on the execution mode, so that gas to be replaced is filled into the gas recovery unit through the drainage pipeline, and the filling gas is filled into the gas cylinder through the charging pipeline to dilute the residual gas to be replaced in the gas cylinder, so that gas replacement is completed.
In one embodiment, the exhaust pipeline comprises an exhaust main pipe, and a first exhaust branch pipe and a second exhaust branch pipe which are connected with the air outlet end of the exhaust main pipe;
the air inlet end of the air exhaust main pipe is connected with the air bottle; the first valve is arranged on the first exhaust branch pipe, and the second valve is arranged on the second exhaust branch pipe; the first exhaust branch comprises an exhaust main pipe and a first exhaust branch pipe, and the second exhaust branch comprises an exhaust main pipe and a second exhaust branch pipe.
In one embodiment, the gas replacement device further comprises a connecting pipeline for connecting the exhaust main pipe and the charging pipeline, and a negative pressure device arranged on the exhaust main pipe;
the connecting pipeline is provided with a third valve; the processor is connected with the third valve and the negative pressure device and is used for controlling the third valve to execute corresponding actions according to the execution mode.
In one embodiment, the gas replacement device further comprises a detector and a first pressure gauge which are both arranged on the main exhaust pipe, and a second pressure gauge which is arranged on the charging pipe; the detector, the first pressure gauge and the second pressure gauge are all connected with the processor; the detector is used for detecting and outputting the concentration of the gas to be replaced in the gas cylinder, the first pressure gauge is used for detecting and outputting the pressure value of the exhaust main pipe, and the second pressure gauge is used for detecting and outputting the pressure value of the gas charging pipeline;
The processor receives the pressure value of the exhaust main pipe, the pressure value of the charging pipeline and the concentration of the gas to be replaced, and sets and acquires an execution mode according to the pressure value of the exhaust main pipe, the pressure value of the charging pipeline and the concentration of the gas to be replaced.
In one embodiment, the exhaust pipeline further comprises at least two third exhaust branch pipes used for connecting the exhaust main pipe and the gas cylinders, the at least two third exhaust branch pipes are connected in parallel and then connected with the exhaust main pipe, each third exhaust branch pipe is respectively connected with one gas cylinder, and exhaust valves are arranged on the third exhaust branch pipes;
the processor is connected with the exhaust valve and is used for controlling the exhaust valve to execute corresponding actions according to the execution mode.
In one embodiment, the execution modes include a bulk execution mode and a single execution mode;
the batch execution mode is to execute corresponding actions for each valve in sequence;
the single execution mode performs the corresponding action for the single valve.
In one embodiment, the gas storage unit comprises at least two gas storage tanks, the at least two gas storage tanks are connected through parallel pipelines, and the parallel pipelines are connected with the gas charging pipeline; the parallel pipeline is provided with a switching valve for switching the inflation gas source;
The processor is connected with the switching valve and is used for controlling the switching valve to execute corresponding actions according to the execution mode.
The hydrogen storage cylinder gas replacement method is applied to the processor and comprises the following steps:
acquiring an execution mode;
when the execution mode is a single execution mode, acquiring a single operation parameter, and controlling the single valve to execute corresponding actions according to the single operation parameter;
when the execution mode is a batch execution mode, acquiring time sequence operation parameters, and controlling each valve to execute corresponding actions in sequence according to the time sequence operation parameters; the time series operating parameters include a delay parameter indicating the time interval after the valve has completed an action until the next valve performs an action.
A hydrogen storage cylinder gas displacement apparatus comprising:
the mode acquisition module is used for acquiring an execution mode;
the single execution module is used for acquiring a single operation parameter when the execution mode is a single execution mode, and controlling the single valve to execute corresponding actions according to the single operation parameter;
the batch execution module is used for acquiring time sequence operation parameters when the execution mode is a batch execution mode, and controlling each valve to sequentially execute corresponding actions according to the time sequence operation parameters; the time series operating parameters include a delay parameter indicating the time interval after the valve has completed an action until the next valve performs an action.
A computer readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the method described above.
One of the above technical solutions has at least the following advantages and beneficial effects:
the utility model provides a treater connects the inflation valve that is equipped with on the inflation line in the gas replacement equipment in the hydrogen storage cylinder gas replacement system, the second valve that is equipped with on the first exhaust branch way and the second exhaust branch way in the exhaust line, acquire execution mode through the treater, carry out corresponding action according to execution mode control inflation valve, first valve and second valve, to treat replacement gas and fill to the gas recovery unit through the exhaust line, and with filling gas and carrying out dilution to remaining replacement gas in the gas cylinder through the inflation line filling, thereby accomplish the replacement of gas. The hydrogen storage cylinder gas replacement system can avoid potential safety hazards caused by manual operation, is high in safety coefficient, and can improve the replacement efficiency of gas to be replaced.
Drawings
In order to more clearly illustrate the technical solutions of embodiments or conventional techniques of the present application, the drawings required for the descriptions of the embodiments or conventional techniques will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person of ordinary skill in the art.
FIG. 1 is a block diagram of a hydrogen storage cylinder gas replacement system according to one embodiment;
FIG. 2 is a schematic diagram of electrical connections of a gas displacement apparatus in one embodiment;
FIG. 3 is a schematic diagram of the workflow of a hydrogen cartridge gas replacement system in one example;
FIG. 4 is a schematic flow chart of a method for replacing a hydrogen storage cylinder gas in one embodiment;
fig. 5 is a block diagram showing a structure of a hydrogen tank gas replacement apparatus according to an embodiment.
Reference numerals illustrate:
10. a gas storage unit; 11. a gas storage tank; 12. a switching valve; 20. an inflation line; 21. an inflation valve; 22. a mass flow controller; 23. a second pressure gauge; 24. an inflatable main pipe; 25. an inflatable branch pipe; 26. a busbar; 30. a gas recovery unit; 40. an exhaust line; 41. a first valve; 42. a second valve; 43. an exhaust main pipe; 44. a first exhaust branch pipe; 45. a second exhaust branch pipe; 46. a check valve; 47. a first pressure gauge; 48. a fire retardant device; 49. a third exhaust branch pipe; 491. an exhaust valve; 50. a gas cylinder; 60. a third valve; 70. a negative pressure device; 80. a pressure reducing valve; 90. a detector; 100. an alarm; 110. an explosion-proof wall; 120. a collection tank; 121. a discharge valve.
Detailed Description
In order to facilitate an understanding of the present application, a more complete description of the present application will now be provided with reference to the relevant figures. Examples of the present application are given in the accompanying drawings. This application may, however, be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
It will be understood that the terms "first," "second," and the like, as used herein, may be used to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another element.
Spatially relative terms, such as "under", "below", "beneath", "under", "above", "over" and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use and action in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements or features described as "under" or "beneath" other elements would then be oriented "on" the other elements or features. Thus, the exemplary terms "below" and "under" may include both an upper and a lower orientation. Furthermore, the device may also include an additional orientation (e.g., rotated 90 degrees or other orientations) and the spatial descriptors used herein interpreted accordingly.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or be connected to the other element through intervening elements. Further, "connection" in the following embodiments should be understood as "electrical connection", "communication connection", and the like if there is transmission of electrical signals or data between objects to be connected.
As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises/comprising," "includes," or "having," etc., specify the presence of stated features, integers, steps, actions, components, portions, or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, actions, components, portions, or groups thereof. Also, the term "and/or" as used in this specification includes any and all combinations of the associated listed items.
As described in the background art, the residual gas recovery device in the prior art requires a worker to realize the operation of air intake and air exhaust by manually controlling the valve body or the flange and to perform repeated replacement, so that the replacement efficiency is very low, and when the gas stored in the pressure vessel is inflammable and explosive, the operation is careless and potential safety hazard is easily brought.
Based on the reasons, the invention provides a system for carrying out gas replacement on gas to be replaced by controlling gas replacement equipment through a processor, which can effectively improve the efficiency of gas replacement and the safety in the gas replacement process.
In one embodiment, as shown in FIG. 1, a hydrogen storage cylinder gas replacement system is provided, which may include a gas replacement device and a processor, the gas replacement device being as shown in FIG. 2;
the gas displacement apparatus may include:
a gas storage unit 10 storing a filling gas for replacing a gas to be replaced in the gas cylinder 50;
the air charging pipeline 20 is used for connecting the air storage unit 10 and the air bottle 50, and an air charging valve 21 is arranged on the air charging pipeline 20;
a gas recovery unit 30 for recovering the gas to be replaced in the gas cylinder 50;
an exhaust line 40, which may include a first exhaust branch and a second exhaust branch; one end of the first exhaust branch is connected with the gas cylinder 50, and the first valve 41 is arranged on the first exhaust branch; the second exhaust branch is connected with the gas recovery unit 30 and the gas bottle 50, and is provided with a second valve 42;
the processor is connected with the charging valve 21, the first valve 41 and the second valve 42;
the processor acquires an execution mode, and controls the charging valve 21, the first valve 41 and the second valve 42 to perform corresponding actions based on the execution mode, so that the gas to be replaced is filled into the gas recovery unit 30 through the discharge pipeline, and the filling gas is filled into the gas cylinder 50 through the charging pipeline to dilute the residual gas to be replaced in the gas cylinder 50, so as to complete gas replacement.
If the gas to be replaced is inflammable and explosive gas such as hydrogen, the filling gas can be inert gas such as nitrogen, the actual filling gas can also select the corresponding filling gas to carry out gas replacement according to the property of the gas to be replaced, the nominal volume of the vehicle-mounted high-pressure hydrogen storage cylinder 50 is not more than 450L, and the temperature is controlled below 85 ℃; the inflation valve 21 and the first and second valves 41, 42 may each be an automatic valve. The processor can control the opening and closing of the charging valve 21, the first valve 41 and the second valve 42, and can control the flow directions of the filling gas and the gas to be replaced in the charging pipeline 20 and the discharging pipeline 40 by controlling the opening and closing of the valves, so that the effects of dilution and replacement are achieved.
Specifically, the air outlet end of the air charging pipeline 20, the air inlet end of the first air discharging branch and the air inlet end of the second air discharging branch are respectively connected with the air bottle 50, so that the tightness and reliability of connection are ensured, and the air outlet end of the first air discharging branch is used for high-altitude discharge. After the processor acquires the execution mode, the processor controls the corresponding valve to execute opening or closing action according to the execution mode, so that the gas to be replaced in the gas storage bottle 50 is filled into the gas recovery unit 30 for recovery, and if the gas to be replaced is hydrogen, the recovered hydrogen can be reused, and energy is saved; however, because of the defects of cracks, deformation, pits and the like in the gas cylinder 50, a small amount of gas to be replaced remains in the gas cylinder 50 and is not easy to be removed, and the concentration of the remaining gas to be replaced can be higher than a specified standard, so that the filling gas in the gas storage unit 10 needs to be filled into the gas cylinder 50 through the gas filling pipeline to be diluted, and the system concentration is reduced to complete the replacement of the gas.
In one example, after the processor obtains the execution mode, the rest valves except the second valve 42 may be controlled to be closed, the second valve 42 may be controlled to be opened for a period of time until the gas to be replaced which can be discharged from the gas bottle 50 is discharged, then the second valve 42 may be controlled to be closed, then the charging valve 21 is controlled to be opened, the filling gas in the gas storage unit 10 is filled into the gas bottle 50 through the charging pipeline 20 to dilute the residual gas to be replaced, and after a period of time of filling, the charging valve 21 is controlled to be closed, so that the gas to be replaced and the filling gas are uniformly mixed in the gas bottle 50; the mixed gas may then be discharged aloft via the first exhaust branch by controlling the opening of the first valve 41. The processor repeats the operation by controlling the above-mentioned replacement process until the concentration of the gas to be replaced in the gas cylinder 50 meets the standard of the group mark, and then the gas to be replaced in the gas cylinder 50 can be regarded as being exhausted, thereby completing the replacement of the gas.
The hydrogen storage cylinder gas replacement system can acquire an execution mode through the processor, so that the corresponding actions are carried out by controlling the charging valve 21, the first valve 41 and the second valve 42 according to the execution mode, the gas to be replaced is filled into the gas recovery unit 30 for recovery, and the gas to be replaced is filled into the gas cylinder 50 for repeatedly diluting the residual gas to be replaced in the gas cylinder 50 to be in accordance with the standard concentration, namely, the replacement of the gas is completed, and therefore, the hydrogen storage cylinder gas replacement system can avoid potential safety hazards caused by manual gas replacement and reduce the workload of workers, and effectively improve the replacement efficiency of gas replacement.
In a particular embodiment, the execution modes may include a bulk execution mode and a single execution mode;
the batch execution mode is to execute corresponding actions for each valve in sequence;
the single execution mode performs the corresponding action for the single valve.
Specifically, when the execution mode acquired by the processor is a single execution mode, the single valve is controlled to execute a corresponding action according to the single operation parameter by acquiring the single operation parameter, and the single operation parameter may include one or more of a switching state, an inflation speed, an inflation volume, an exhaust speed, an exhaust volume and a delay parameter of each automatic valve.
When the acquired execution mode is a batch execution mode, acquiring time sequence operation parameters, wherein the time sequence operation parameters can comprise time sequence identifiers, acquiring execution parameters and execution time sequences of all valves by a processor based on a time sequence table corresponding to the time sequence identifiers, and controlling all the valves to execute corresponding actions according to the corresponding execution parameters according to the execution time sequences. The time sequence operation parameter can also comprise one or more of time sequence circulation times, stop instructions, start instructions and pause instructions, and the stop, the start and the pause of the time sequence can be controlled according to the time sequence operation circulation times; the execution parameters may include one or more of a switching state, an inflation speed, an inflation volume, an exhaust speed, an exhaust volume, and a delay parameter of each automatic valve, and delay is performed to ensure that each action is started after the execution of the previous action is completed, that is, a pressure maintaining process, thereby improving the operation precision of gas replacement.
In one example, the gas recovery unit 30 may be a recovery gas tank, and the gas pressure in the recovery gas tank may be measured by connecting a pressure sensor to the recovery gas tank, and when the pressure value reaches a preset threshold value, the recovery gas tank is replaced. The processor can receive the pressure value in the gas cylinder 50 read by the pressure sensor connected with the gas cylinder 50, determine the execution mode by the received pressure value or other related execution parameters, also can manually input the corresponding execution mode into the processor, and directly acquire the corresponding execution mode, thereby determining the opening and closing of the first valve 41, the second valve 42 and the inflation valve 21; when the reading of the pressure sensor is smaller than or equal to the first preset threshold value, the processor controls the second valve 42 or the first valve 41 to be closed, which indicates that the gas in the gas cylinder 50 is mostly exhausted; when the reading of the pressure sensor is greater than or equal to the second preset threshold, it indicates that the gas in the gas bottle 50 is enough, at this time, the processor controls the charging valve 21 to be closed, and waits for a certain time until the gas is uniformly mixed, and then the processor controls the first valve 41 to be opened for high-altitude discharge.
According to the processor, according to the acquired execution mode, the execution mode comprises a batch execution mode and a single execution mode, the processor can control the single valve to execute corresponding actions according to the single execution mode, and can also control each valve to execute corresponding actions in sequence according to the batch execution mode, so that gas replacement is achieved. The system provides different execution modes, and the processor can automatically adjust the control condition of each valve according to the actual condition of inflation and deflation, thereby improving the efficiency of gas replacement.
In a specific embodiment, the exhaust line 40 includes an exhaust main pipe 43, and a first exhaust branch pipe 44 and a second exhaust branch pipe 45 each connected to an outlet end of the exhaust main pipe 43;
the air inlet end of the air exhaust main pipe 43 is connected with the air bottle 50; the first valve 41 is arranged on the first exhaust branch pipe 44, and the second valve 42 is arranged on the second exhaust branch pipe 45; the first exhaust branch includes an exhaust main pipe 43 and a first exhaust branch pipe 44, and the second exhaust branch includes an exhaust main pipe 43 and a second exhaust branch pipe 45.
Specifically, by acquiring the corresponding execution mode, the processor can store the gas to be replaced in the gas cylinder 50 to the gas recovery unit 30 via the second exhaust branch pipe 45 by controlling the second valve 42 to be opened and the other valves to be closed; then the charging valve 21 is controlled to be opened, other valves are closed, filling gas is filled into the gas cylinder 50 through the charging pipeline 20 to dilute the gas to be replaced, the first gate is opened through time-lapse pressure maintaining, other gates are closed, so that diluted mixed gas is discharged through the first exhaust branch pipe 44, the actions of charging, pressure maintaining and exhausting are repeated, and finally the concentration of the gas to be replaced in the gas cylinder 50 accords with the standard concentration, so that the gas replacement is completed.
The first exhaust branch road of this application overlaps with the exhaust branch road part of second, and reducible consumptive material on the one hand, on the other hand reducible hydrogen storage cylinder gas replacement system's space occupies to and make the hydrogen storage cylinder gas replacement system of this application more clean and tidy.
In a specific embodiment, the gas replacement apparatus may further include a connection pipe connecting the main exhaust pipe 43 and the charge pipe 20, and a negative pressure device 70 provided on the main exhaust pipe 43;
the connecting pipeline is provided with a third valve 60; the processor is connected to the third valve 60 and is configured to control the third valve 60 to perform a corresponding action according to the execution mode.
In one example, the gas replacement apparatus may further include a negative pressure device 70 provided on the main exhaust pipe 43, the negative pressure device 70 being located between the third valve 60 and the outlet end of the main exhaust pipe 43; the processor is connected to a negative pressure device 70, which negative pressure device 70 may be an air driven pump.
Specifically, the processor can realize the direct communication between the air charging pipeline 20 and the main exhaust pipe 43 by opening the third valve 60, and simultaneously, by means of the negative pressure effect of the negative pressure device 70, the processor can control the third valve 60 to be opened and control the negative pressure device 70 to be opened before the gas to be replaced is recovered, so that the filling gas in the gas storage unit 10 is firstly purged of the residual air in the pipeline, and controls the first valve 41 to be opened, and the mixed gas purged by the filling gas is discharged, so that the purity of the gas to be replaced can be improved when the subsequent gas to be replaced is recovered, and the recovery of the high-purity gas to be replaced is facilitated.
The negative pressure device 70 and the third valve 60 can be arranged in the hydrogen storage cylinder gas replacement system, and the negative pressure device and the third valve are controlled by the processor to cooperatively operate in a recovery process of the gas to be replaced and a driving force is provided in the replacement process of the gas to be replaced, so that the gas replacement process is more compact, and the gas emission is smoother.
In a specific embodiment, the gas displacement apparatus may further include a detector 90 and a first pressure gauge 47 both disposed on the main exhaust pipe 43, and a second pressure gauge 23 disposed on the charge line 20; the detector 90, the first pressure gauge 47 and the second pressure gauge 23 are all connected with the processor; the detector 90 is used for detecting and outputting the concentration of the gas to be replaced in the gas cylinder 50, the first pressure gauge 47 is used for detecting and outputting the pressure value of the main exhaust pipe 43, and the second pressure gauge 23 is used for detecting and outputting the pressure value of the gas charging pipeline 20;
the processor receives the pressure value of the main exhaust pipe 43, the pressure value of the charge pipe 20, and the concentration of the gas to be displaced, and sets and acquires an execution mode according to the pressure value of the main exhaust pipe 43, the pressure value of the charge pipe 20, and the concentration of the gas to be displaced.
In one example, the gas replacement apparatus further includes a pressure reducing valve 80, the pressure reducing valve 80 is provided on the exhaust main pipe 43, and the detector 90 is connected to the pressure reducing valve 80; the main exhaust pipe 43 is also provided with a check valve 46 to avoid potential safety hazards caused by gas backflow or external gas entry. Similarly, the charging pipeline 20 is provided with a mass flow controller (Mass Flow Controller, MFC) 22 for precisely measuring and controlling the mass flow of the gas; the pressure relief valve 80, check valve 46 and mass flow controller 22 are all connected to the processor.
Specifically, by externally connecting the detector 90 to the pressure reducing valve 80, the concentration of the gas to be replaced at the pressure reducing valve 80 is detected by the detector 90, and when the processor controls the pressure reducing valve 80 to exhaust, the detector 90 detects that the concentration of the gas to be replaced is lower than the prescribed standard, the content of the gas to be replaced in the gas cylinder 50 can be considered to reach the group standard, and the subsequent detection procedure can be entered.
The first pressure gauge 47 is arranged on the main exhaust pipe 43, and when no additional pressure sensor is arranged in the gas cylinder 50, the current pressure value on the main exhaust pipe 43 can be read through the first pressure gauge 47, so that when the pressure value is small enough, the gas in the gas cylinder 50 is mostly emptied, and the subsequent gas filling operation can be performed.
Similarly, the second pressure gauge 23 is disposed on the air charging pipeline 20, and the current pressure value on the air charging pipeline 20 can be read by the second pressure gauge 23, so that when the pressure value is small enough, it indicates that the air in the air storage unit 10 is insufficient, and the air source needs to be replaced or supplemented.
The processor can automatically set an execution mode according to the condition that the concentration of the gas to be replaced at the pressure reducing valve 80, the pressure value of the exhaust main pipe 43 detected by the first pressure gauge 47 and the pressure value of the air charging pipeline 20 detected by the second pressure gauge 23 are detected by the receiving detector 90, and the processor controls the air charging valve 21, the first valve 41, the second valve 42, the pressure reducing valve 80, the check valve 46 and the mass flow controller 22 to execute corresponding actions according to the execution mode; if the execution mode is a batch execution mode, the processor controls the opening or closing of each valve according to the execution sequence, and if the execution mode is a single execution mode, the processor controls the single valve to execute the opening or closing action, so that the replacement of gas is achieved.
The arrangement of the pressure reducing valve 80 reduces the noise generated by releasing the gas to be replaced at high pressure or replacing the gas to be replaced at high pressure, has a certain noise reduction function, and avoids the noise pollution from bringing greater interference and harm to test personnel and surrounding environment; the check valve 46 and the mass flow controller 22 can prevent the potential safety hazard caused by the backflow of gas or the entry of external gas respectively; the corresponding values detected by the detector 90, the first pressure gauge 47 and the second pressure gauge 23 are all data sources for the on-off state, the inflation speed, the inflation volume, the exhaust speed, the exhaust volume, the delay parameters and the like of the respective movable valves included in the operation parameters, and the processor can automatically set corresponding execution modes based on the received data, so that the corresponding execution modes are obtained to control the valves, the replacement of gas is achieved, the safety risk caused by manual operation is avoided, the replacement process is more intelligent, and the replacement efficiency of the gas is greatly improved.
In a specific embodiment, the exhaust pipeline 40 may further include at least two third exhaust branch pipes 49 for connecting the main exhaust pipe 43 and the gas cylinders 50, where the at least two third exhaust branch pipes 49 are connected in parallel and then connected to the main exhaust pipe 43, and each third exhaust branch pipe 49 is connected to one gas cylinder 50, and exhaust valves 491 are disposed on the third exhaust branch pipes 49;
The processor is coupled to the exhaust valve 491 for controlling the exhaust valve 491 to perform a corresponding action according to an execution mode.
Specifically, each valve is an automatic valve, by setting at least two third exhaust branch pipes 49 connecting the main exhaust pipe 43 and the gas cylinders 50, the processor can control each valve to execute corresponding opening and closing actions according to the acquired execution mode, so as to realize that more than two gas cylinders 50 are simultaneously replaced by the gas to be replaced, and the processor can control the opening and closing of the exhaust valve 491 to control the exhaust time of each gas cylinder 50 to be different, so that the replacement process of each gas cylinder 50 is independent, and the gas cylinders 50 can be uniformly controlled or independently controlled according to actual conditions, especially when the number of the gas cylinders 50 is more, the exhaust of each gas cylinder 50 can be controlled according to the execution mode peak staggering, thereby the subsequent operation is not needed after all the gas cylinders 50 are emptied, and the working efficiency of gas replacement is greatly improved.
In one example, the number of third exhaust branch pipes 49 may be five, so that the hydrogen cartridge gas replacement system may support the co-replacement of five cylinders 50. Wherein the number of the third exhaust branch pipes 49 may be increased or decreased as appropriate according to actual demands; the pressure reducing valve 80 and the check valve 46 in the exhaust main pipe 43 are disposed in this order in the air flow direction.
In one example, when the acquisition execution mode is a batch execution mode, the execution parameters and the execution time sequences of the valves are acquired, and according to the execution time sequences, the valves are controlled to execute corresponding actions according to the corresponding execution parameters, and the time sequence table 1 is shown in the following table 1:
time schedule 1
In one example, aiming at the difference of residual hydrogen in the gas cylinder, the various operations are performed through time sequence control, and the exhaust valve and the charging valve of each branch are independently operated, so that the replacement efficiency can be effectively improved, and the corresponding time sequence table 2 is shown in the following table 2:
time schedule 2
In a specific embodiment, the gas storage unit 10 may include at least two gas storage tanks 11, the at least two gas storage tanks 11 being connected by parallel lines, and the parallel lines being connected with the gas charging line 20; the parallel pipeline is provided with a switching valve 12 for switching the inflation gas source;
the processor is connected to the switching valve 12 for controlling the switching valve 12 to perform a corresponding action according to the execution mode.
Specifically, since the second pressure gauge 23 is arranged on the air charging pipeline 20, when the pressure value displayed by the second pressure gauge 23 is lower than the preset threshold value, the air charging pipeline 20 can be communicated with the other air storage tank 11 through the switching valve 12, so that uninterrupted air supply is realized, and the working efficiency is improved; alternatively, each air storage tank 11 may be connected with a pressure sensor for indicating the air pressure in the tank, so as to obtain the air remaining in the tank in time. The gas storage tank 11 which has been filled with gas can be replaced so that the gas can be supplied in time the next time the switching valve 12 switches the gas source.
In one example, the number of the air tanks 11 may be two, and the switching valve 12 may be a three-way valve.
In a specific embodiment, the air charging pipeline 20 may include an air charging main pipe 24, and at least two air charging branch pipes 25 connected to the air outlet end of the air charging main pipe 24, where the air inlet end of the air charging pipeline 20 is connected to the air storage unit 10; each inflation branch pipe 25 is connected with one gas cylinder 50; the number of the air charging valves 21 is matched with the number of the air charging branch pipes 25, and the air charging valves 21 are arranged on the air charging branch pipes 25.
In one example, the number of gas cylinders 50 may be five, so the number of gas-filled branch pipes 25 may be five; the gas replacement apparatus may further include a bus bar 26, and the main inflation pipe 24 is connected to at least two of the branch inflation pipes 25 via the bus bar 26, and the filling gas supplied from the gas storage unit 10 may be distributed to different branch inflation pipes 25 via the arrangement of the bus bar 26.
Because each inflation branch pipe 25 is provided with one inflation valve 21, the inflation time of each gas cylinder 50 can be controlled to be different through the processor, and the inflation valves are matched with the exhaust valves 491 independently arranged on the third exhaust branch pipes 49, so that the replacement process of each gas cylinder 50 is independent, uniform control or independent control can be performed according to actual conditions, and particularly when the number of the gas cylinders 50 is large, the inflation and the exhaust of each gas cylinder 50 can be controlled according to the peak shifting of the execution mode, so that the replacement process of the gas to be replaced is completely independent, the gas of each gas cylinder 50 is not required to be fully filled, or the subsequent operation is performed after the gas is exhausted, and the working efficiency of gas replacement is greatly improved.
In one example, when the remaining amount of gas in the gas tank 1 is insufficient, the switching valve is switched to the gas tank 2 corresponding to the charging valve a'. The whole process does not need manual intervention, and each valve is controlled to exhaust and charge according to the time sequence circulation times and time sequence. The corresponding timing table 3 is described in table 3 below:
time schedule 3
In a specific embodiment, the hydrogen storage cylinder gas replacement system may further include a cylinder 50 chamber for storing the cylinder 50, wherein an alarm 100 is disposed in the cylinder 50 chamber, the alarm 100 is connected to the processor, and when the alarm 100 detects that the concentration of the gas to be replaced is greater than the standard concentration, an audible and visual alarm is sent out, so that the whole hydrogen storage cylinder gas replacement system is suddenly stopped, a leakage point is detected, and the safety factor is improved. In addition, the wall of the gas cylinder 50 chamber can adopt an explosion-proof wall 110, so that the personal safety of the workers in the field is ensured; the main exhaust pipe 43 can be further provided with a fire-retardant device 48 connected with the processor, so that the safety performance of the hydrogen storage cylinder gas replacement system is further improved, and the pipeline is prevented from being ignited and exploded.
In one example, as shown in fig. 3, which is a schematic workflow diagram of a hydrogen storage cylinder gas replacement system, the gas to be replaced is hydrogen, and the filling gas is nitrogen, wherein the fuzzy PID (Proportion Integral Differential) control is to use fuzzy logic and optimize the PID parameters in real time according to a certain fuzzy rule, so as to overcome the defect that the conventional PID parameters cannot adjust the PID parameters in real time (a proportional unit (p), an integral unit (I), and a differential unit (D)). The fuzzy PID control strategy takes an automatic switching valve 12 and a pressure sensor (connected with a nitrogen gas storage bottle) as input signals, takes a mass flow controller as output signals, and corrects the gas filling rate by the gas quality of the steel bottle. And the mass flow controller outputs parameter actions according to the fuzzy PID control strategy, and adjusts the nitrogen filling rate through the filling pressure and the automatic switching valve so as to ensure the filling rate.
In a specific embodiment, the hydrogen storage cylinder gas replacement system may further include a collection tank 120 connected to the first exhaust branch, a detector connected to the collection tank 120 for detecting the concentration of the gas in the collection tank 120, and a discharge valve 121 for discharging the gas, wherein the discharge valve 121 and the detector for detecting the concentration of the gas in the collection tank 120 are connected to the processor. That is, the gas purged by the filling gas and the mixed gas replaced by the filling gas all enter the collection tank 120 through the first exhaust branch, and when the detector connected with the collection tank 120 detects that the concentration of the gas to be replaced in the collection tank 120 exceeds the preset concentration value, the processor controls the discharge valve 121 to be opened, and the mixed gas is discharged at high altitude.
In a specific example, the gas to be replaced is hydrogen, the filling gas is nitrogen, the execution mode obtained by the processor is a batch execution mode, and the specific control flow is as follows:
s1: the third valve 60, the switching valve 12, the negative pressure device 70 and the first valve 41 are opened, the other valves are closed, the negative pressure device 70 is controlled to evacuate the remaining air in the piping, and the nitrogen gas purges the remaining air in the piping, and the remaining air in the piping flows into the collection tank 120.
S2: the third valve 60, the switching valve 12, the exhaust valve 491, the pressure reducing valve 80 and the first valve 41 are closed, so that the gas to be replaced and the gas in the pipeline flow into the collection tank 120 together, and the first preset time is delayed.
S3, closing the first valve 41, opening the second valve 42, and delaying each operation for a second preset time; the negative pressure device 70 is opened, the remaining gas to be replaced in the gas cylinder 50 flows into the gas recovery unit to be replaced through the exhaust valve 491, the pressure reducing valve 80, the check valve 46, and the second valve 42, and when the value of the first pressure gauge 47 is lower than the preset threshold value, the next step is entered.
S4: sequentially closing the exhaust valve 491, the pressure reducing valve 80, the check valve 46 and the second valve 42 along the gas flow direction, and delaying each action for a second preset time; the switching valve 12, mass flow controller 22, bus 26 and charge valve 21 are opened and the cylinder 50 is filled with nitrogen.
S5: and repeating the steps S2 and S4 until the concentration of the gas to be replaced detected by the detector 90 on the exhaust main pipe 43 is less than 0.4%.
S6: the exhaust valve 491 is closed, and the charging valve 21, the bus bar 26, the mass flow controller 22, and the switching valve 12 are opened to charge nitrogen gas into the gas cylinder 50.
And after the replacement gas replacement process is finished, entering a subsequent detection process. The first preset time is 10s, the second preset time is 3s, and the first preset time and the second preset time can be reasonably set according to actual conditions.
Above, the processor in the hydrogen storage cylinder gas replacement system of the present application controls each valve to execute a corresponding action based on the execution mode by acquiring the execution mode, so that the gas to be replaced is filled into the gas recovery unit 30, the filling gas is filled into the gas cylinder 50, and the residual gas to be replaced in the gas cylinder 50 is diluted to the standard concentration, so as to complete the replacement of the gas. The potential safety hazard caused by manual operation is avoided, and more than two gas cylinders 50 can be replaced by the aid of the method, gas replacement efficiency is high, and purity of replacement gas can be improved through time-delay pressure-maintaining control in a batch execution mode.
In one embodiment, as shown in fig. 4, there is provided a hydrogen storage cylinder gas replacement method, the method comprising:
step 202, acquiring an execution mode;
step 204, when the execution mode is a single execution mode, acquiring a single operation parameter, and controlling the single valve to execute a corresponding action according to the single operation parameter;
step 206, when the execution mode is a batch execution mode, acquiring time sequence operation parameters, and controlling each valve to execute corresponding actions in sequence according to the time sequence operation parameters; the time series operating parameters include a delay parameter indicating the time interval after the valve has completed an action until the next valve performs an action.
Specifically, when the acquired execution mode is a single execution mode, the single valve is controlled to execute a corresponding action according to the single operation parameter by acquiring the single operation parameter, and the single operation parameter may include one or more of a switching state, an inflation speed, an inflation volume, an exhaust speed, an exhaust volume and a delay parameter of each automatic valve.
When the acquired execution mode is a batch execution mode, acquiring a time sequence operation parameter, wherein the time sequence operation parameter can comprise a time sequence identifier, acquiring the execution parameter and the execution time sequence of each valve based on a time sequence table corresponding to the time sequence identifier, and controlling each valve to execute corresponding actions according to the corresponding execution parameters according to the execution time sequence. The time sequence operation parameter can also comprise one or more of time sequence circulation times, stop instructions, start instructions and pause instructions, and the stop, the start and the pause of the time sequence can be controlled according to the time sequence operation circulation times; the execution parameters may include one or more of a switching state, an inflation speed, an inflation volume, an exhaust speed, an exhaust volume, and a delay parameter of each automatic valve, and delay is performed to ensure that each action is started after the execution of the previous action is completed, that is, a pressure maintaining process, thereby improving the operation precision of gas replacement.
It should be understood that, although the steps in the flowcharts of fig. 3 and 4 are shown in order as indicated by the arrows, these steps are not necessarily performed in order as indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least a portion of the steps in fig. 3 and 4 may include a plurality of steps or stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of the steps or stages is not necessarily sequential, but may be performed in rotation or alternately with at least a portion of the steps or stages in other steps or other steps.
In one embodiment, as shown in fig. 5, there is provided a hydrogen storage cylinder gas replacement apparatus comprising:
a mode acquisition module 210, configured to acquire an execution mode;
the single execution module 220 is configured to obtain a single operation parameter when the execution mode is a single execution mode, and control the single valve to execute a corresponding action according to the single operation parameter;
The batch execution module 230 is configured to obtain a time sequence operation parameter when the execution mode is a batch execution mode, and control each valve to sequentially execute corresponding actions according to the time sequence operation parameter; the time series operating parameters include a delay parameter indicating the time interval after the valve has completed an action until the next valve performs an action.
The specific limitation of the hydrogen storage cylinder gas replacement device can be referred to as limitation of the hydrogen storage cylinder gas replacement method hereinabove, and the description thereof will not be repeated here. The modules in the hydrogen storage cylinder gas replacement device can be fully or partially realized by software, hardware and a combination thereof. The above modules may be embedded in hardware or may be independent of a processor in the computer device, or may be stored in software in a memory in the computer device, so that the processor may call and execute actions corresponding to the above modules. It should be noted that, in the embodiment of the present application, the division of the modules is schematic, which is merely a logic function division, and other division manners may be implemented in actual implementation.
In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored which, when executed by a processor, carries out the steps of the method embodiments described above.
Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in embodiments provided herein may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, or the like. Volatile memory can include random access memory (Random Access Memory, RAM) or external cache memory. By way of illustration, and not limitation, RAM can be in the form of a variety of forms, such as static random access memory (Static Random Access Memory, SRAM) or dynamic random access memory (Dynamic Random Access Memory, DRAM), and the like.
In the description of the present specification, reference to the terms "some embodiments," "other embodiments," "desired embodiments," and the like, means 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, schematic descriptions of the above terms do not necessarily refer to the same embodiment or example.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples merely represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the invention. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.
Claims (10)
1. A hydrogen storage cylinder gas replacement system, which is characterized by comprising a gas replacement device and a processor;
the gas displacement apparatus includes:
the gas storage unit is used for storing filling gas for replacing gas to be replaced in the gas cylinder;
the gas charging pipeline is used for connecting the gas storage unit and the gas cylinder, and a gas charging valve is arranged on the gas charging pipeline;
the gas recovery unit is used for recovering the gas to be replaced in the gas cylinder;
An exhaust line comprising a first exhaust branch and a second exhaust branch; one end of the first exhaust branch is connected with the gas cylinder, and a first valve is arranged on the first exhaust branch; the second exhaust branch is connected with the gas recovery unit and the gas cylinder, and a second valve is arranged on the second exhaust branch;
the processor is connected with the inflation valve, the first valve and the second valve;
the exhaust pipeline comprises an exhaust main pipe, and a first exhaust branch pipe and a second exhaust branch pipe which are both connected with the air outlet end of the exhaust main pipe;
the air inlet end of the air exhaust main pipe is connected with the air bottle; the first valve is arranged on the first exhaust branch pipe, and the second valve is arranged on the second exhaust branch pipe; the first exhaust branch comprises the main exhaust pipe and the first exhaust branch pipe, and the second exhaust branch comprises the main exhaust pipe and the second exhaust branch pipe; the exhaust pipeline can also comprise at least two third exhaust branch pipes which are connected with the main exhaust pipe and the gas cylinder, and exhaust valves are arranged on the third exhaust branch pipes;
the processor acquires an execution mode, and controls the charging valve, the first valve and the second valve to execute corresponding actions based on the execution mode, so that the gas to be replaced is filled into the gas recovery unit through the exhaust pipeline, and the filling gas is filled into the gas cylinder through the charging pipeline to dilute the residual gas to be replaced in the gas cylinder, so that gas replacement is completed; the processor is connected with the exhaust valve and is used for controlling the exhaust valve to execute corresponding actions according to an execution mode;
The gas replacement equipment further comprises a connecting pipeline for connecting the exhaust main pipe and the charging pipeline, and a negative pressure device arranged on the exhaust main pipe;
a third valve is arranged on the connecting pipeline; the negative pressure device is positioned between the third valve and the air outlet end of the main exhaust pipe; the processor is connected with the third valve and the negative pressure device and is used for controlling the third valve to execute corresponding actions according to the execution mode; when the execution mode acquired by the processor is the single execution mode, controlling the single valve of the charging valve, the first valve, the second valve and the exhaust valve to execute corresponding actions according to the single operation parameter, wherein the single operation parameter comprises one or more of the switching states, the charging speed, the charging volume, the exhaust speed, the exhaust volume and the delay parameter of the single valve of the charging valve, the first valve, the second valve and the exhaust valve; when the execution mode acquired by the processor is the batch execution mode, acquiring a time sequence operation parameter, wherein the time sequence operation parameter comprises a time sequence identifier, acquiring the execution parameters and the execution time sequence of the air charging valve, the first valve, the second valve and the air discharging valve by the processor based on a time sequence table corresponding to the time sequence identifier, and controlling the air charging valve, the first valve, the second valve and the air discharging valve to execute corresponding actions according to the corresponding execution parameters according to the execution time sequence; the execution parameters comprise one or more of the inflation valve, the first valve, the second valve, the opening and closing state of the exhaust valve, the inflation speed, the inflation volume, the exhaust speed, the exhaust gas volume and the delay parameter; the delay parameter is used to confirm the execution sequence of the actions.
2. The hydrogen storage cylinder gas replacement system according to claim 1, wherein a mass flow controller connected with the processor is arranged on the charging pipeline; the mass flow controller is used for measuring and controlling the mass flow of the gas.
3. The hydrogen storage cylinder gas replacement system according to claim 1, wherein the main exhaust pipe is further provided with a check valve for preventing gas from flowing back or external gas from entering.
4. The hydrogen storage cylinder gas replacement system according to claim 1, wherein the gas replacement apparatus further comprises a detector and a first pressure gauge both provided on the main exhaust pipe, and a second pressure gauge provided on the charging pipe; the detector, the first pressure gauge and the second pressure gauge are all connected with the processor; the detector is used for detecting and outputting the concentration of the gas to be replaced in the gas cylinder, the first pressure gauge is used for detecting and outputting the pressure value of the exhaust main pipe, and the second pressure gauge is used for detecting and outputting the pressure value of the gas charging pipeline;
the processor receives the pressure value of the exhaust main pipe, the pressure value of the charging pipeline and the concentration of the gas to be replaced, and sets and acquires the execution mode according to the pressure value of the exhaust main pipe, the pressure value of the charging pipeline and the concentration of the gas to be replaced.
5. The hydrogen storage cylinder gas replacement system according to claim 1, wherein the exhaust pipeline further comprises at least two third exhaust branch pipes for connecting the main exhaust pipe and the gas cylinder, the at least two third exhaust branch pipes are connected in parallel and then connected with the main exhaust pipe, each third exhaust branch pipe is respectively connected with one gas cylinder, and exhaust valves are arranged on the third exhaust branch pipes;
the processor is connected with the exhaust valve and is used for controlling the exhaust valve to execute corresponding actions according to the execution mode.
6. The hydrogen storage cylinder gas replacement system according to claim 1, wherein,
the batch execution mode is to execute corresponding actions for each valve in sequence;
the single execution mode performs corresponding actions for a single valve.
7. The hydrogen storage cylinder gas replacement system according to claim 1, wherein the gas storage unit includes at least two gas storage tanks, at least two of the gas storage tanks are connected by a parallel pipeline, and the parallel pipeline is connected with the charging pipeline; the parallel pipeline is provided with a switching valve for switching the inflation gas source;
the processor is connected with the switching valve and is used for controlling the switching valve to execute corresponding actions according to the execution mode.
8. A hydrogen gas cylinder gas replacement method, characterized by being applied to the hydrogen gas cylinder gas replacement system according to any one of claims 1 to 7, the method comprising:
acquiring an execution mode;
when the execution mode is a single execution mode, acquiring a single operation parameter, and controlling a single valve to execute corresponding actions according to the single operation parameter;
when the execution mode is a batch execution mode, acquiring time sequence operation parameters, and controlling each valve to execute corresponding actions in sequence according to the time sequence operation parameters; the time sequence operation parameters comprise a time delay parameter, which is used for indicating the time interval from the completion of a certain action of a certain valve to the execution of the action of the next valve.
9. A hydrogen storage cylinder gas replacement apparatus comprising the hydrogen storage cylinder gas replacement system according to claim 1, comprising:
the mode acquisition module is used for acquiring an execution mode;
the single execution module is used for acquiring a single operation parameter when the execution mode is a single execution mode, and controlling the single valve to execute corresponding actions according to the single operation parameter;
the batch execution module is used for acquiring time sequence operation parameters when the execution mode is a batch execution mode, and controlling each valve to execute corresponding actions in sequence according to the time sequence operation parameters; the time sequence operation parameters comprise a time delay parameter, which is used for indicating the time interval from the completion of a certain action of a certain valve to the execution of the action of the next valve.
10. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method of claim 8.
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Effective date of registration: 20240614 Address after: 510663 No.9, Keke Road, Huangpu District, Guangzhou City, Guangdong Province Patentee after: Guangzhou Special Equipment Testing and Research Institute (Guangzhou Special Equipment Accident Investigation Technology Center Guangzhou Elevator Safety Operation Monitoring Center) Country or region after: China Address before: 510663 No.9, Keke Road, Science City, Huangpu District, Guangzhou City, Guangdong Province Patentee before: GUANGZHOU SPECIAL PRESSURE EQUIPMENT INSPECTION AND Research Institute Country or region before: China |