CN108536205A - Failure in hydrogen making by natural gas reformation system automatically terminates device - Google Patents
Failure in hydrogen making by natural gas reformation system automatically terminates device Download PDFInfo
- Publication number
- CN108536205A CN108536205A CN201810627196.5A CN201810627196A CN108536205A CN 108536205 A CN108536205 A CN 108536205A CN 201810627196 A CN201810627196 A CN 201810627196A CN 108536205 A CN108536205 A CN 108536205A
- Authority
- CN
- China
- Prior art keywords
- desulfurization
- natural gas
- failure
- hydrogen
- devulcanizer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 293
- 239000003345 natural gas Substances 0.000 title claims abstract description 148
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 106
- 239000001257 hydrogen Substances 0.000 title claims abstract description 106
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 105
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 142
- 230000023556 desulfurization Effects 0.000 claims abstract description 141
- 230000007246 mechanism Effects 0.000 claims abstract description 93
- 238000012544 monitoring process Methods 0.000 claims abstract description 88
- 238000012545 processing Methods 0.000 claims abstract description 65
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000011261 inert gas Substances 0.000 claims abstract description 26
- 238000013024 troubleshooting Methods 0.000 claims abstract description 24
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 22
- 239000011593 sulfur Substances 0.000 claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 claims abstract description 20
- 238000006243 chemical reaction Methods 0.000 claims description 45
- 239000007789 gas Substances 0.000 claims description 29
- 238000009792 diffusion process Methods 0.000 claims description 10
- 239000005864 Sulphur Substances 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 5
- 238000012806 monitoring device Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 3
- 238000003795 desorption Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 claims 1
- 238000002407 reforming Methods 0.000 claims 1
- 239000003054 catalyst Substances 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 10
- 229910002091 carbon monoxide Inorganic materials 0.000 description 10
- 230000015556 catabolic process Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229960004424 carbon dioxide Drugs 0.000 description 1
- 229910002090 carbon oxide Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000012495 reaction gas Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D27/00—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
- G05D27/02—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00 characterised by the use of electric means
-
- 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
- C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
- C01B3/32—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
- C01B3/34—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/058—Safety, monitoring
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/10—Plc systems
- G05B2219/14—Plc safety
- G05B2219/14053—Power failure, loss, abnormal battery
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Combustion & Propulsion (AREA)
- Inorganic Chemistry (AREA)
- Fuel Cell (AREA)
Abstract
The invention discloses the failures in a kind of hydrogen making by natural gas reformation system to automatically terminate device, including natural gas component monitoring equipment after desulfurization, finished hydrogen flow monitoring equipment, Fisrt fault processing mechanism, the second troubleshooting mechanism and signal processing control module；When signal processing control module judges to occur sulfur content higher failure according to the monitoring signals of natural gas component monitoring equipment after desulfurization, sending out instruction to Fisrt fault processing mechanism makes it release the failure；When signal processing control module judges to occur finished hydrogen flow relatively low failure according to the monitoring signals of finished hydrogen flow monitoring equipment, sending out instruction to the second troubleshooting mechanism makes it release the failure.The advantage of the invention is that：One, failure is automatically terminated rapidly in the case that non-stop-machine, which greatly enhances hydrogen manufacturing production efficiencys.Two, disconnection fault processing mechanism carries out safe shutdown step, so that inert gas is entered the contaminated catalysts prevented in devulcanizer, to be effectively saved production cost.
Description
Technical field
The present invention relates to hydrogen making by natural gas reformation production technical fields.
Background technology
The structure of current hydrogen making by natural gas reformation system includes mainly：Mounted on equipment install shell in reformer,
Carbon monoxide converter, pressure swing adsorber are connected with a pair of of buffer reservoir on reformer --- burning natural gas buffer reservoir
It is connected with natural gas transportation manifold with the input terminal of reaction natural gas buffer reservoir, a pair of of buffer reservoir, raw material is natural
Gas is inputted by natural gas transportation manifold, the output end of burning natural gas buffer reservoir and the burner phase in the shell of reformer
Connection, reaction are connected by desulfurization mechanism with the reactor in reformer with the output end of natural gas buffer reservoir；Reformer
On be additionally provided with vapor input pipe and air intake duct, vapor input pipe is connected with the reactor in reformer, air
Air inlet pipe is connected with the enclosure interior of reformer, and the output end of reformer is connected with carbon monoxide converter, carbon monoxide
The output end of converter is connected to pressure swing adsorber.
It often will appear the higher failure of sulfur content, finished product during the hydrogen manufacturing of current hydrogen making by natural gas reformation system
The relatively low failure of hydrogen flowing quantity.The processing mode of above-mentioned failure is answered to be at present：Maintenance of equipment is carried out after artificial emergency shutdown, to solve
Except failure.The drawbacks of this releasing failure, is：It breaks down to shut down every time and repairs processing, this leverages life
Produce efficiency.
Invention content
The purpose of the present invention is：The failure provided in a kind of hydrogen making by natural gas reformation system automatically terminates device, can be
Failure is automatically terminated in the case of non-stop-machine.
To achieve the above object, the technical solution adopted by the present invention is：Failure in hydrogen making by natural gas reformation system is automatic
Device is released, including the natural gas component monitoring equipment after desulfurization of the reaction on natural gas input pipe of reformer is set, if
It sets at the finished hydrogen flow monitoring equipment of pressure swing adsorber output end, the Fisrt fault for releasing the higher failure of sulfur content
Manage mechanism, the second troubleshooting mechanism and signal processing control module for releasing the relatively low failure of finished hydrogen flow；It is de-
Natural gas component monitoring equipment, finished hydrogen flow monitoring equipment, Fisrt fault processing mechanism, the second troubleshooting mechanism after sulphur
Communicated to connect with signal processing control module；Signal processing control module is according to the prison of natural gas component monitoring equipment after desulfurization
When surveying signal and judging to occur the higher failure of sulfur content, sending out instruction to Fisrt fault processing mechanism makes it release the failure；Signal
When processing and control module judges to occur finished hydrogen flow relatively low failure according to the monitoring signals of finished hydrogen flow monitoring equipment,
Sending out instruction to the second troubleshooting mechanism makes it release the failure；The Fisrt fault processing mechanism includes：By at least two
Desulfurization pipeline is arranged in parallel the desulfurization mechanism to be formed, and is respectively provided with that there are one devulcanizer, each devulcanizers on every desulfurization pipeline
Input pipe on be both provided with devulcanizer electric flow control valve, the input pipe of all devulcanizers converges to form the defeated of desulfurization mechanism
Enter end, the efferent duct of all devulcanizers converges the output end to form desulfurization mechanism, the input terminal of desulfurization mechanism and react use naturally
The output end of gas buffer reservoir is connected, and the output end of desulfurization mechanism is connected with reacting for reformer with natural gas input pipe,
The desulfurization pipeline that devulcanizer electric flow control valve is opened is work desulfurization pipeline, and devulcanizer electric flow control valve is closed de-
Sulphur pipeline is spare desulfurization pipeline；The second troubleshooting mechanism includes：It is arranged in reaction natural gas buffer reservoir
Reaction natural gas buffer reservoir electric flow control valve on input pipe and reaction natural gas buffer reservoir flowmeter.
Further, the failure in hydrogen making by natural gas reformation system above-mentioned automatically terminates device, wherein further includes setting
In the power supply way circuit of hydrogen making by natural gas reformation system for monitor power supply way circuit break-make circuit monitoring equipment, be used for
Release power supply way circuit disconnection fault disconnection fault processing mechanism, circuit monitoring equipment, disconnection fault processing mechanism with letter
Monitoring signals are sent to signal processing control module, signal processing by the communication connection of number processing and control module, circuit monitoring equipment
When control module judges to occur power supply way circuit disconnection fault according to the monitoring signals of circuit monitoring equipment, instruction is sent out to power-off
Troubleshooting mechanism makes it execute safe shutdown step, and the disconnection fault processing mechanism includes：It can be gas renormalizing system
Hydrogen production system provides the stand-by power supply and inertial gas tank of electric power, and it is defeated to be provided with inert gas on inertial gas tank
Outlet pipe, inert gas efferent duct are connected to desulfurization mechanism, and the adjusting of inert gas electric flow is provided on inert gas efferent duct
Valve；The natural gas main valve being arranged on natural gas transportation manifold；Pipeline, desulfurization are diffused in the desulfurization being arranged in desulfurization mechanism input terminal
Desorption tube road is provided with desulfurization diffusion valve, and desulfurization loine pressure table is both provided on every desulfurization pipeline；It is arranged in equipment
Pressure fan on shell is installed；Safe shutdown step includes：The first step opens stand-by power supply；It is defeated to close natural gas for second step
The natural gas main valve on manifold is sent, to cut off raw natural gas supply so that entire hydrogen making by natural gas reformation system stops adding
Heat；Third walks, and opens desulfurization diffusion valve so that the gas in devulcanizer on work desulfurization pipeline diffuses tubes rows by desulfurization
Go out；It opens and forces fan；4th step opens inert gas electric flow control valve and makes inertial gas tank into desulfurization mechanism
It is filled with inert gas in devulcanizer on work desulfurization pipeline, to be carried out to the catalyst in devulcanizer on work desulfurization pipeline
Desulfurization diffusion valve is subsequently closed in protection, when the pressure of the desulfurization loine pressure table on work desulfurization pipeline is shown as 1.5Mpa
When, inert gas electric flow control valve is closed respectively to stop being filled with inert gas；4th step closes gas renormalizing system
The production control system software of hydrogen system, is then shut off power supply.
Further, the failure in hydrogen making by natural gas reformation system above-mentioned automatically terminates device, wherein the letter
Number processing and control module includes PLC and computer, natural gas component monitoring equipment after desulfurization, finished hydrogen flow monitoring equipment,
The monitoring signals of circuit monitoring equipment are sent in PLC, and monitoring signals are converted into being sent to meter after corresponding measured value by PLC
Calculation machine, is preset with preset value corresponding with each measured value difference in computer, computer by measured value with it is corresponding default
Value is compared, and when a certain measured value exceeds corresponding values, computer judges to occur opposite with this measured value
The failure answered；When computer judges to occur sulfur content higher failure, computer is sent instructions by PLC to Fisrt fault processing mechanism
It is set to release the failure；When computer judges to occur finished hydrogen flow relatively low failure, computer is sent instructions by PLC to second
Troubleshooting mechanism makes it release the failure；When computer judges to occur power supply way circuit disconnection fault, computer is sent out by PLC
Instruction to disconnection fault processing mechanism makes it execute safe shutdown step.
Still further, the failure in hydrogen making by natural gas reformation system above-mentioned automatically terminates device, wherein Fisrt fault
Devulcanizer electric flow control valve in processing mechanism on every desulfurization pipeline is connect with plc communication；Computer judges to occur
When the higher failure of sulfur content, computer by PLC send instructions on work desulfurization pipeline devulcanizer electric flow control valve,
And/or the devulcanizer electric flow control valve on spare desulfurization pipeline so that the devulcanizer electric flow on work desulfurization pipeline
The devulcanizer electric flow control valve that regulating valve increases on aperture and/or spare desulfurization pipeline is opened to certain aperture, to increase
Big desulfurization mechanism desulfurization process amount, to release the higher failure of sulfur content.
Still further, the failure in hydrogen making by natural gas reformation system above-mentioned automatically terminates device, wherein the second failure
Reaction natural gas buffer reservoir electric flow control valve in processing mechanism and the score of reaction natural gas buffer reservoir flow
It is not connect with plc communication, when computer judges to occur finished hydrogen flow relatively low failure, computer is sent instructions by PLC to extremely
Natural gas buffer reservoir electric flow control valve so that reaction increases aperture with natural gas buffer reservoir electric flow control valve,
To increase the input quantity of reaction natural gas, to release the relatively low failure of finished hydrogen flow.
Further, the failure in hydrogen making by natural gas reformation system above-mentioned automatically terminates device, wherein natural after desulfurization
Gas component monitoring equipment is gas chromatograph.
Further, the failure in hydrogen making by natural gas reformation system above-mentioned automatically terminates device, wherein finished hydrogen stream
Amount monitoring device is finished hydrogen flowmeter.
Further, the failure in hydrogen making by natural gas reformation system above-mentioned automatically terminates device, wherein for monitoring electricity
The circuit monitoring equipment of source way circuit break-make is outage detection device.
It is an advantage of the invention that：One, when the higher failure of sulfur content or the relatively low failure of finished hydrogen flow occurs, at signal
Managing control module can believe according to the monitoring of natural gas component monitoring equipment after desulfurization and finished hydrogen flow monitoring equipment respectively
Number breakdown judge is made rapidly, and sent instructions rapidly to Fisrt fault processing mechanism or the second troubleshooting mechanism, makes it not
Failure is automatically terminated in the case of shutdown rapidly, which greatly enhances hydrogen manufacturing production efficiencys.Once it is disconnected that power supply way circuit two, occurs
Electric fault, signal processing control module then can make breakdown judge rapidly, and rapid by the monitoring signals of circuit monitoring equipment
It sends out instruction and opens stand-by power supply, in the case where stand-by power supply provides electric power so that disconnection fault processing mechanism carries out safe stopping
Machine step, in devulcanizer that can be into desulfurization mechanism on inertial gas tank in safe shutdown step in be filled with inert gas progress
Catalyst protection, this can have the contaminated catalysts prevented in devulcanizer, to be effectively saved production cost.
Description of the drawings
Fig. 1 be the failure in hydrogen making by natural gas reformation system of the present invention automatically terminate in device each monitoring device with
The mounting structure schematic diagram of troubleshooting mechanism.
Fig. 2 is that the failure in hydrogen making by natural gas reformation system of the present invention automatically terminates stand-by power supply in device, sets
The mounting structure schematic diagram of fan is forced in standby installation shell.
Fig. 3 is the operation principle flow that failure in hydrogen making by natural gas reformation system of the present invention automatically terminates device
Figure.
Specific implementation mode
The present invention is described in further detail with preferred embodiment below in conjunction with the accompanying drawings.
Make more visible retouch to automatically terminate device to the failure in hydrogen making by natural gas reformation system of the present invention
It states, related introduction first is done to the structure of hydrogen making by natural gas reformation system below.
As shown in Figure 1, the structure of hydrogen making by natural gas reformation system, includes mainly：Equipment installs shell 200, equipment installation
Reformer 1, carbon monoxide converter 2, pressure swing adsorber 3 are provided in shell 200.A pair of of buffering storage is communicated on reformer 1
Tank --- burning natural gas buffer reservoir 4 and reaction natural gas buffer reservoir 5, the input terminal of a pair of of buffer reservoir with day
Right gas delivery main 6 is connected, specifically：6 phases of input pipe 41 and natural gas transportation manifold of burning natural gas buffer reservoir 4
Connection, the input pipe 51 of reaction natural gas buffer reservoir 5 are connected with natural gas transportation manifold 6.Raw natural gas is by natural
Gas delivery main 6 input, burning with the output end of natural gas buffer reservoir 4 be connected to the burning natural gas on reformer 1 into
Tracheae 11, burning are connected with natural gas air inlet pipe 11 with the burner of 1 enclosure interior of reformer.Reaction is buffered with natural gas and is stored up
The output end of tank 5 is connected with the input terminal 71 of desulfurization mechanism 7, and the output end 72 of desulfurization mechanism 7 reacts use on reformer 1
Natural gas input pipe 12 is connected, and reaction is connected with natural gas input pipe 12 with the reactor in reformer 1.On reformer 1
It is additionally provided with vapor input pipe 14 and air intake duct 13, vapor input pipe 14 is connected with the reactor in reformer 1,
Air intake duct 13 is connected with the enclosure interior of reformer 1.The reformer output pipe 17 and one of 1 output end of reformer aoxidizes
Carbon converter 2 is connected, and the chuck layer for adjusting temperature is provided on carbon monoxide converter 2, carbon monoxide converter 2
Heat-conducting medium circuit 21, the carbon monoxide converter output pipe 23 of 2 output end of carbon monoxide converter are connected in chuck layer
It is connected to pressure swing adsorber 3, the output end of pressure swing adsorber 3 is provided with hydrogen efferent duct 31.
The operation principle of hydrogen making by natural gas reformation system is described below：Raw natural gas is distinguished by natural gas transportation manifold 6
It is input to burning natural gas buffer reservoir 4 and reaction natural gas buffer reservoir 5, burning is used in natural gas buffer reservoir 4
The enclosure interior that burning enters to reformer 1 with natural gas carries out burning to be provided for the reaction in reactor in reformer 1
Thermal energy, the combustion air in combustion process are entered by air intake duct 13 in the shell of reformer 1.Reaction is buffered with natural gas
Reaction in storage tank 5 is introduced into desulfurization in desulfurization mechanism 7 with natural gas, and the natural gas after desulfurization is from reaction natural gas input pipe
12 enter in the reactor in reformer 1, and the vapor of simultaneous reactions enters to reformer 1 by vapor input pipe 14
In reactor, primary reformation reformer efferent duct of the gas from 1 output end of reformer of reaction generation in the reactor in reformer 1
The output of road 17 is to further being reacted in carbon monoxide converter 2, and the conversion gas that the reaction of carbon monoxide converter 2 generates is from one
The output end of carbonoxide converter 2 is entered in pressure swing adsorber 3 and is purified, the purification generation ultra-pure hydrogen of pressure swing adsorber 3
Product hydrogen, finished hydrogen export outward from the hydrogen efferent duct 31 of 3 output end of pressure swing adsorber.
Failure in hydrogen making by natural gas reformation system of the present invention automatically terminates device, including is arranged in reformer 1
Desulfurization of the reaction on natural gas input pipe 12 after natural gas component monitoring equipment 106, be arranged in 3 output end of pressure swing adsorber
Finished hydrogen flow monitoring equipment 108, be arranged and be used in the power supply way circuit 100 of hydrogen making by natural gas reformation production system
The circuit monitoring equipment 1001 of monitoring power supply way circuit break-make, the Fisrt fault processor for releasing the higher failure of sulfur content
Structure, the second troubleshooting mechanism for releasing the relatively low failure of finished hydrogen flow, for releasing power supply way circuit disconnection fault
Disconnection fault processing mechanism and signal processing control module.Natural gas component monitoring after desulfurization described in the present embodiment
Equipment is gas chromatograph, and finished hydrogen flow monitoring equipment 108 is finished hydrogen flowmeter, the finished hydrogen flowmeter
On the hydrogen efferent duct 31 of 3 output end of pressure swing adsorber, circuit monitoring equipment 1001 is outage detection device.
Natural gas component monitoring equipment 106 after desulfurization, finished hydrogen flow monitoring equipment 108, circuit monitoring equipment 1001,
Fisrt fault processing mechanism, the second troubleshooting mechanism, disconnection fault processing mechanism with signal processing control module communication link
It connects.Natural gas component monitoring equipment 106, finished hydrogen flow monitoring equipment 108, circuit monitoring equipment 1001 respectively will after desulfurization
Monitoring signals are sent to signal processing control module, and signal processing control module is according to natural gas component monitoring equipment after desulfurization
When 106 monitoring signals judge to occur sulfur content higher failure, sending out instruction to Fisrt fault processing mechanism makes it release the event
Barrier.Signal processing control module judges that finished hydrogen flow occurs according to the monitoring signals of finished hydrogen flow monitoring equipment 108
When relatively low failure, sending out instruction to the second troubleshooting mechanism makes it release the failure.Signal processing control module is according to circuit
When the monitoring signals of monitoring device 1001 judge to occur disconnection fault, sending out instruction to disconnection fault processing mechanism makes it execute peace
Full outage.
Signal processing control module described in the present embodiment includes PLC and computer, natural gas component monitoring after desulfurization
Equipment 106, finished hydrogen flow monitoring equipment 108, the monitoring signals of circuit monitoring equipment 1001 are sent to PLC, and PLC will be supervised
It surveys after signal is converted into corresponding measured value and is sent to computer, be preset in computer corresponding with each measured value respectively
Measured value is compared by preset value, computer with corresponding preset value, when a certain measured value exceeds corresponding values
When, computer judges that failure corresponding with this measured value occurs.When computer judges to occur sulfur content higher failure, calculate
Machine makes it release the failure by the PLC Fisrt fault processing mechanisms that send instructions.Computer judges that generation finished hydrogen flow is relatively low
When failure, computer makes it release the failure by the PLC second troubleshooting mechanisms that send instructions.Computer judges that power-off event occurs
When barrier, computer sends out instruction to disconnection fault processing mechanism by PLC makes it execute safe shutdown step.
The Fisrt fault processing mechanism, including：It is arranged in parallel the desulfurization mechanism formed by least two desulfurization pipelines
7, it is respectively provided on every desulfurization pipeline there are one devulcanizer 70, it is electronic to be both provided with devulcanizer on the input pipe of each devulcanizer 7
Flow control valve 701, the input pipe of all devulcanizers 70 converge the input terminal 71 to form desulfurization mechanism 7, all devulcanizers 70
Efferent duct converges the output end 72 to form desulfurization mechanism 7, the input terminal of desulfurization mechanism 7 with react with natural gas buffer reservoir 5
Output end is connected, and the output end 72 of desulfurization mechanism 7 is connected with reacting for reformer 1 with natural gas air inlet pipe 12, devulcanizer
The desulfurization pipeline that electric flow control valve 701 is opened is work desulfurization pipeline, and devulcanizer electric flow control valve 701 is closed de-
Sulphur pipeline is spare desulfurization pipeline.The quantity of desulfurization pipeline can be set according to actual needs.Desulfurization on every desulfurization pipeline
Device electric flow control valve 701 is connect with plc communication.When the higher failure of computer judgement generation sulfur content, computer is logical
Cross PLC send instructions on work desulfurization pipeline devulcanizer electric flow control valve 701, and/or spare desulfurization pipeline on it is de-
Sulphur device electric flow control valve 701 so that the increase aperture of devulcanizer electric flow control valve 701 on work desulfurization pipeline, and/
Or the devulcanizer electric flow control valve 701 on spare desulfurization pipeline is opened to certain aperture, to increase the desulfurization of desulfurization mechanism
Treating capacity automatically terminates the higher failure of sulfur content with this.I.e.：By increasing work desulfurization pipeline quantity, simultaneously or separately increase
The aperture of devulcanizer electric flow control valve 701 in big work desulfurization pipeline, to improve desulfurization process amount.
The second troubleshooting mechanism, including：It is arranged on the input pipe 51 of reaction natural gas buffer reservoir 5
Reaction natural gas buffer reservoir electric flow control valve 511 and reaction natural gas buffer reservoir flowmeter 512.Reaction day
Right gas buffer reservoir electric flow control valve 511 and reaction are connect with plc communication with natural gas buffer reservoir flowmeter 512.
When computer judges to occur finished hydrogen flow relatively low failure, computer sends instructions to reaction natural gas to buffer by PLC to be stored up
Tank electric flow control valve 511 so that reaction increases aperture with natural gas buffer reservoir electric flow control valve 511, to increase
The flow of big reaction natural gas, to release the relatively low failure of finished hydrogen flow.Reaction natural gas buffer reservoir flowmeter 512
The flow of reaction natural gas in input pipe 51 for monitoring reaction natural gas buffer reservoir 5.
The disconnection fault processing mechanism includes：The standby electricity of electric power can be provided for hydrogen making by natural gas reformation production system
Source 9 and inertial gas tank 8 are provided with inert gas efferent duct 83, inert gas efferent duct 83 on inertial gas tank 8
It is connected to desulfurization mechanism 7, inert gas electric flow control valve 831 is provided on inert gas efferent duct 83；It is arranged natural
Natural gas main valve 61 on gas delivery main 6；Pipeline 73 is diffused in the desulfurization being arranged in 7 input terminal 71 of desulfurization mechanism, and desulfurization is diffused
It is provided with desulfurization diffusion valve 731 on pipeline 73, desulfurization loine pressure table 702 is both provided on every desulfurization pipeline 73；Setting
Pressure fan 201 on equipment installation shell 200.Inert gas electric flow control valve 831, natural gas main valve 61, desulfurization
Diffusion valve 731, forces fan 201 to be connect with plc communication at desulfurization loine pressure table 702.Safe shutdown step specifically includes：
The first step, opens stand-by power supply 9, and stand-by power supply 9 provides electric power for hydrogen making by natural gas reformation system；Second step closes natural gas
Natural gas main valve 61 on delivery main 6, to cut off raw natural gas supply so that entire hydrogen making by natural gas reformation system is stopped
Only heat；Third walks, and opens desulfurization diffusion valve 731 so that the gas in devulcanizer 70 on work desulfurization pipeline passes through desulfurization
Diffuse the discharge of pipeline 73；Fan 201 is forced in addition, opening, it is logical in order to improve to be aerated to equipment installation shell 200
Wind effect can will force fan to be opened to maximum；4th step opens inert gas electric flow control valve 831 so that inert gas
Storage tank 8 works into desulfurization mechanism 7 and is filled with inert gas in the devulcanizer 70 on desulfurization pipeline, to on work desulfurization pipeline
Catalyst in devulcanizer 70 is protected, and desulfurization diffusion valve 731 is subsequently closed, the desulfurization pipeline on work desulfurization pipeline
When the pressure of pressure gauge 702 is shown as 1.5Mpa, inert gas electric flow control valve is closed respectively to stop being filled with inertia
Gas；4th step closes the production control system software of hydrogen making by natural gas reformation system, is then shut off power supply.
It is done further in detail to automatically terminate device to the failure in hydrogen making by natural gas reformation system of the present invention
It describes in detail bright, specific troubleshooting embodiment is given below.
Embodiment one：The higher failure of sulfur content.
Monitoring signals are sent to PLC by natural gas component monitoring equipment 106 after desulfurization, and monitoring signals are converted into reality by PLC
Measured value is sent to computer, and computer obtains the natural-gas sulphur content measured value after desulfurization：SActual measurement=8ppb is preset in computer
The preset value S of natural-gas sulphur content after desulfurizationSetting=4ppb, according to SActual measurement＞ SSetting, the higher event of computer-made decision generation sulfur content
Barrier.The present embodiment is calculated by the following method.
According to △ S=8-4=4ppb, computer judges the desulfurization process amount for needing to double.
Computer is sent instructions by PLC to the devulcanizer electric flow control valve 701 on a spare desulfurization pipeline, this is made
Devulcanizer electric flow control valve 701 on the spare desulfurization pipeline of item is opened to certain aperture, to make the spare desulfurization pipe of this
The devulcanizer 70 of road starts desulfurization work, the devulcanizer electric flow control valve 701 on the spare desulfurization pipeline be in
The aperture of devulcanizer electric flow control valve 701 on the work desulfurization pipeline of working condition is identical, and such desulfurization mechanism 7 takes off
Sulphuring treatment amount is just doubled than before, and the higher failure of sulfur content automatically terminates.
Embodiment two：The relatively low failure of finished hydrogen flow.
Monitoring signals are sent to PLC by finished hydrogen flow monitoring equipment 108, and monitoring signals are converted into measured value by PLC
It is sent to computer, computer obtains the measured value V of finished hydrogen flowActual measurement=55 m3/h；Finished hydrogen is preset in computer
The preset value V of flowIt is default=60 m3/ h, according to VActual measurement＜ VIt is default, the computer-made decision generation relatively low failure of finished hydrogen flow.This reality
Example is applied to be calculated by the following method.
Calculate VAdjustment=△V /б=1.7 m3/h。
△ V are the difference of finished hydrogen flow preset value and measured value in formula；б is 1Nm3Natural gas is converted into the body of hydrogen
Product coefficient, б=3.
Computer judgement needs to increase reaction gas discharge.Computer is sent instructions by PLC to reaction natural gas
Buffer reservoir electric flow control valve 511 so that reaction increases aperture with natural gas buffer reservoir electric flow control valve 511,
To increase the flow of reaction natural gas, to release the relatively low failure of finished hydrogen flow.
The advantage of the invention is that：One, when the higher failure of sulfur content or the relatively low failure of finished hydrogen flow occurs, signal
Processing and control module can be according to the prison of natural gas component monitoring equipment 106 and finished hydrogen flow monitoring equipment 108 after desulfurization
It surveys signal and makes breakdown judge rapidly, and send instructions rapidly to Fisrt fault processing mechanism or the second troubleshooting mechanism, make it
Failure is automatically terminated rapidly in the case that non-stop-machine, and which greatly enhances hydrogen manufacturing production efficiencys.Once it is always electric that power supply two, occurs
Road disconnection fault, signal processing control module then can make breakdown judge rapidly by the monitoring signals of circuit monitoring equipment, and
It is rapid to send out instruction unlatching stand-by power supply, in the case where stand-by power supply provides electric power so that disconnection fault processing mechanism is pacified
Full outage, in devulcanizer 70 that can be into desulfurization mechanism 7 on inertial gas tank in safe shutdown step in be filled with inertia
Gas carries out catalyst protection, this can have the contaminated catalysts prevented in devulcanizer 70, to be effectively saved production cost.
Claims (8)
1. the failure in hydrogen making by natural gas reformation system automatically terminates device, it is characterised in that：Including being arranged in the anti-of reformer
Using natural gas component monitoring equipment after the desulfurization on natural gas input pipe, the finished hydrogen in pressure swing adsorber output end is set
It is flow monitoring equipment, the Fisrt fault processing mechanism for releasing the higher failure of sulfur content, inclined for releasing finished hydrogen flow
The the second troubleshooting mechanism and signal processing control module of low failure；Natural gas component monitoring equipment, finished product hydrogen after desulfurization
Throughput monitoring device, Fisrt fault processing mechanism, the second troubleshooting mechanism are communicated to connect with signal processing control module；
Signal processing control module according to the monitoring signals of natural gas component monitoring equipment after desulfurization judges that the higher failure of sulfur content occurs
When, sending out instruction to Fisrt fault processing mechanism makes it release the failure；Signal processing control module is according to finished hydrogen flow
When the monitoring signals of monitoring device judge to occur finished hydrogen flow relatively low failure, sending out instruction to the second troubleshooting mechanism makes
It releases the failure；The Fisrt fault processing mechanism includes：It is arranged in parallel the desulfurization formed by least two desulfurization pipelines
Mechanism is respectively provided on every desulfurization pipeline there are one devulcanizer, and it is electronic to be both provided with devulcanizer on the input pipe of each devulcanizer
Flow control valve, the input pipe of all devulcanizers converge the input terminal to form desulfurization mechanism, the efferent duct convergence of all devulcanizers
Form the output end of desulfurization mechanism, the input terminal of desulfurization mechanism and reacting is connected with the output end of natural gas buffer reservoir, de-
The output end of sulphur mechanism is connected with reacting for reformer with natural gas input pipe, and devulcanizer electric flow control valve is opened de-
Sulphur pipeline is work desulfurization pipeline, and the desulfurization pipeline that devulcanizer electric flow control valve is closed is spare desulfurization pipeline；Described
Second troubleshooting mechanism includes：The reaction being arranged on the input pipe of reaction natural gas buffer reservoir is buffered with natural gas and is stored up
Tank electric flow control valve and reaction natural gas buffer reservoir flowmeter.
2. the failure in hydrogen making by natural gas reformation system according to claim 1 automatically terminates device, it is characterised in that：Also
Including the circuit monitoring for monitoring power supply way circuit break-make being arranged in the power supply way circuit of hydrogen making by natural gas reformation system
Equipment, the disconnection fault processing mechanism for releasing power supply way circuit disconnection fault, circuit monitoring equipment, disconnection fault processor
Structure is communicated to connect with signal processing control module, and monitoring signals are sent to signal processing control module by circuit monitoring equipment,
When signal processing control module judges to occur power supply way circuit disconnection fault according to the monitoring signals of circuit monitoring equipment, finger is sent out
Enabling to disconnection fault processing mechanism makes it execute safe shutdown step, and the disconnection fault processing mechanism includes：Can be natural
Gas reformation hydrogen production production system provides the stand-by power supply and inertial gas tank of electric power, is provided on inertial gas tank lazy
Property gas output tube, inert gas efferent duct are connected to desulfurization mechanism, and it is electronic to be provided with inert gas on inert gas efferent duct
Flow control valve；The natural gas main valve being arranged on natural gas transportation manifold；The desulfurization being arranged in desulfurization mechanism input terminal is diffused
Pipeline, desulfurization desorption tube road are provided with desulfurization diffusion valve, desulfurization loine pressure table are both provided on every desulfurization pipeline；If
Set the pressure fan on equipment installation shell；Safe shutdown step includes：The first step opens stand-by power supply；Second step is closed
Natural gas main valve on natural gas transportation manifold, to cut off raw natural gas supply so that entire hydrogen making by natural gas reformation system
System stops heating；Third walks, and opens desulfurization diffusion valve so that the gas in devulcanizer on work desulfurization pipeline is put by desulfurization
Separate tube road is discharged；It opens and forces fan；4th step opens inert gas electric flow control valve and makes inertial gas tank to de-
It works in sulphur mechanism and is filled with inert gas in the devulcanizer on desulfurization pipeline, to urging in devulcanizer on work desulfurization pipeline
Agent is protected, and desulfurization diffusion valve is subsequently closed, when the pressure of the desulfurization loine pressure table on work desulfurization pipeline is shown
For 1.5Mpa when, respectively close inert gas electric flow control valve to stop be filled with inert gas；4th step is closed natural
The production control system software of gas hydrogen production system employing reforming technology, is then shut off power supply.
3. the failure in hydrogen making by natural gas reformation system according to claim 2 automatically terminates device, it is characterised in that：Institute
The signal processing control module stated includes PLC and computer, natural gas component monitoring equipment, finished hydrogen flow monitoring after desulfurization
Equipment, the monitoring signals of circuit monitoring equipment are sent in PLC, and PLC is sent out after monitoring signals are converted into corresponding measured value
Send to computer, be preset with preset value corresponding with each measured value difference in computer, computer by measured value with it is corresponding
Preset value be compared, when a certain measured value exceed corresponding values when, computer judge occur with this survey
It is worth corresponding failure；When computer judges to occur sulfur content higher failure, computer is sent instructions by PLC to Fisrt fault
Reason mechanism makes it release the failure；When computer judges to occur finished hydrogen flow relatively low failure, computer is sent instructions by PLC
It is set to release the failure to the second troubleshooting mechanism；When computer judges to occur power supply way circuit disconnection fault, computer is logical
Cross PLC send instructions to disconnection fault processing mechanism make its execute safe shutdown step.
4. the failure in hydrogen making by natural gas reformation system according to claim 3 automatically terminates device, it is characterised in that：The
Devulcanizer electric flow control valve in one troubleshooting mechanism on every desulfurization pipeline is connect with plc communication；Computer is sentenced
Disconnected when the higher failure of sulfur content occurs, computer is sent instructions by PLC to the devulcanizer electric flow tune on work desulfurization pipeline
Save the devulcanizer electric flow control valve on valve, and/or spare desulfurization pipeline so that the devulcanizer on work desulfurization pipeline is electronic
The devulcanizer electric flow control valve that flow control valve increases on aperture and/or spare desulfurization pipeline is opened to certain aperture, from
And increase desulfurization mechanism desulfurization process amount, to release the higher failure of sulfur content.
5. the failure in hydrogen making by natural gas reformation system according to claim 3 automatically terminates device, it is characterised in that：The
Reaction natural gas buffer reservoir electric flow control valve in two troubleshooting mechanisms and reaction natural gas buffer reservoir stream
Gauge is connect with plc communication respectively, and when computer judges to occur finished hydrogen flow relatively low failure, computer is bristled with anger by PLC
It enables to natural gas buffer reservoir electric flow control valve so that reaction is increased with natural gas buffer reservoir electric flow control valve
Aperture, to increase the input quantity of reaction natural gas, to release the relatively low failure of finished hydrogen flow.
6. the failure in hydrogen making by natural gas reformation system according to claims 1 or 2 or 3 or 4 or 5 automatically terminates device,
It is characterized in that：Natural gas component monitoring equipment is gas chromatograph after desulfurization.
7. the failure in hydrogen making by natural gas reformation system according to claims 1 or 2 or 3 or 4 or 5 automatically terminates device,
It is characterized in that：Finished hydrogen flow monitoring equipment is finished hydrogen flowmeter.
8. the failure in hydrogen making by natural gas reformation system according to Claims 2 or 3 or 4 or 5 automatically terminates device, special
Sign is：Circuit monitoring equipment for monitoring power supply way circuit break-make is outage detection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810627196.5A CN108536205A (en) | 2018-06-19 | 2018-06-19 | Failure in hydrogen making by natural gas reformation system automatically terminates device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810627196.5A CN108536205A (en) | 2018-06-19 | 2018-06-19 | Failure in hydrogen making by natural gas reformation system automatically terminates device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108536205A true CN108536205A (en) | 2018-09-14 |
Family
ID=63471017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810627196.5A Pending CN108536205A (en) | 2018-06-19 | 2018-06-19 | Failure in hydrogen making by natural gas reformation system automatically terminates device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108536205A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114091312A (en) * | 2022-01-17 | 2022-02-25 | 倍有智能科技(深圳)有限公司 | Fault detection method for aluminum water reaction hydrogen production device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1833332A (en) * | 2003-08-08 | 2006-09-13 | 通用汽车公司 | Method and apparatus for venting and purging of a fuel cell |
| CN101432226A (en) * | 2006-03-02 | 2009-05-13 | 新日本石油株式会社 | Hydrogen production apparatus, fuel cell system, and method for operating the fuel cell system |
| CN101610974A (en) * | 2007-12-07 | 2009-12-23 | 松下电器产业株式会社 | Hydrogen producing apparatus and fuel cell system |
| CN201620152U (en) * | 2009-12-04 | 2010-11-03 | 河南省顺成集团煤焦有限公司 | Dry method desulfurization system |
| CN105278587A (en) * | 2015-10-26 | 2016-01-27 | 哈尔滨工业大学 | Multi-channel microfluidic pressure source |
| CN107758617A (en) * | 2016-08-22 | 2018-03-06 | 四川天采科技有限责任公司 | A kind of biogas biolobic material hydrogen production process |
-
2018
- 2018-06-19 CN CN201810627196.5A patent/CN108536205A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1833332A (en) * | 2003-08-08 | 2006-09-13 | 通用汽车公司 | Method and apparatus for venting and purging of a fuel cell |
| CN101432226A (en) * | 2006-03-02 | 2009-05-13 | 新日本石油株式会社 | Hydrogen production apparatus, fuel cell system, and method for operating the fuel cell system |
| CN101610974A (en) * | 2007-12-07 | 2009-12-23 | 松下电器产业株式会社 | Hydrogen producing apparatus and fuel cell system |
| CN201620152U (en) * | 2009-12-04 | 2010-11-03 | 河南省顺成集团煤焦有限公司 | Dry method desulfurization system |
| CN105278587A (en) * | 2015-10-26 | 2016-01-27 | 哈尔滨工业大学 | Multi-channel microfluidic pressure source |
| CN107758617A (en) * | 2016-08-22 | 2018-03-06 | 四川天采科技有限责任公司 | A kind of biogas biolobic material hydrogen production process |
Non-Patent Citations (1)
| Title |
|---|
| 肖钢 等: "《低碳经济与氢能开发》", 30 June 2011, 武汉理工大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114091312A (en) * | 2022-01-17 | 2022-02-25 | 倍有智能科技(深圳)有限公司 | Fault detection method for aluminum water reaction hydrogen production device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5027836B2 (en) | Method for catalytic recombination of hydrogen and oxygen carried together in a gas stream and a recombination system for carrying out this method | |
| CN112349937A (en) | Distributed energy system of methanol hydrogen production coupled fuel cell and operation method | |
| KR100757440B1 (en) | Purge system for fuel cell | |
| US11999621B2 (en) | Systems and methods for increasing the hydrogen permeance of hydrogen-separation membranes in situ | |
| CN108105794B (en) | SCR denitration system inlet smoke temperature self-adaptive adjusting method | |
| CN108536205A (en) | Failure in hydrogen making by natural gas reformation system automatically terminates device | |
| WO2006080057A1 (en) | Gas turbine apparatus, apparatus for supplying fuel gas and method for suppressing calorie elevation of fuel gas | |
| WO2006033175A1 (en) | Gas turbine apparatus, low calorie content gas feeding apparatus, and method of suppressing rise of calorie content of the gas | |
| JP2008140686A (en) | Fuel cell power generation device and its control method | |
| CN112178460A (en) | High-low concentration gas mixing system and gas mixing process control method thereof | |
| CN109052321A (en) | Fault detection and processing unit in hydrogen making by natural gas reformation production line | |
| CN108584872A (en) | The safe shutdown protective device of hydrogen making by natural gas reformation system | |
| CN108751131A (en) | The detection of failure and processing method in hydrogen making by natural gas reformation system | |
| JP4546482B2 (en) | Gas turbine equipment, low calorie gas supply equipment, and method for suppressing calorie rise of the gas | |
| CN209306945U (en) | Fault detection and processing unit in hydrogen making by natural gas reformation production line | |
| CN208898502U (en) | The safe shutdown protective device of hydrogen making by natural gas reformation system | |
| CN113113638B (en) | High-pressure hydrogen supply system of fuel cell automobile | |
| CN203990299U (en) | Gas protection desulfurizer | |
| CN209515204U (en) | A kind of nuclear power station secondary side emergency feedwater supply system and nuclear power station | |
| CN207702118U (en) | A kind of emergent feeder of liquefied natural gas | |
| US20090068517A1 (en) | Systems and methods for verifying fuel cell feed line functionality | |
| CN221230324U (en) | Denitration dilution air system of coal-fired boiler of power plant | |
| CN215668070U (en) | Based on blast furnace blast system prevents negative pressure system with accident condition | |
| CN217899866U (en) | Multiple gas mixing device | |
| CN219735304U (en) | Cooling air system of micro-oil burner of coal-fired power plant |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180914 |
|
| RJ01 | Rejection of invention patent application after publication |