CN109488572A - A kind of air compression system and its air compression control method using ultralow concentration gas - Google Patents
A kind of air compression system and its air compression control method using ultralow concentration gas Download PDFInfo
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- CN109488572A CN109488572A CN201811305673.2A CN201811305673A CN109488572A CN 109488572 A CN109488572 A CN 109488572A CN 201811305673 A CN201811305673 A CN 201811305673A CN 109488572 A CN109488572 A CN 109488572A
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- 230000006835 compression Effects 0.000 title claims abstract description 155
- 238000007906 compression Methods 0.000 title claims abstract description 155
- 238000000034 method Methods 0.000 title claims abstract description 14
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 45
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 42
- 230000003647 oxidation Effects 0.000 claims abstract description 38
- 239000013589 supplement Substances 0.000 claims abstract description 34
- 230000008569 process Effects 0.000 claims abstract description 4
- 239000007789 gas Substances 0.000 claims description 87
- 239000002918 waste heat Substances 0.000 claims description 18
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 9
- 239000003546 flue gas Substances 0.000 claims description 9
- 239000000779 smoke Substances 0.000 claims description 6
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 238000010025 steaming Methods 0.000 claims 2
- 239000003245 coal Substances 0.000 abstract description 9
- 230000003247 decreasing effect Effects 0.000 abstract description 2
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 230000008901 benefit Effects 0.000 description 6
- 238000004880 explosion Methods 0.000 description 5
- 239000000047 product Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000010795 Steam Flooding Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003020 moisturizing effect Effects 0.000 description 2
- 230000000505 pernicious effect Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 206010003497 Asphyxia Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000003325 tomography Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 241001148471 unidentified anaerobic bacterium Species 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B41/00—Pumping installations or systems specially adapted for elastic fluids
- F04B41/02—Pumping installations or systems specially adapted for elastic fluids having reservoirs
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F7/00—Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Jet Pumps And Other Pumps (AREA)
Abstract
The invention discloses a kind of air compression systems using ultralow concentration gas, including being used to the oxidation module of oxidation processes ultralow concentration gas and providing the compression module that energy carries out gas compression by oxidation module；Further include the compressed air reservoir being connect with driving compression module, the compressed gas used for mine is exported by the compressed air reservoir.Invention drives mine air compressor system with the energy of super low-concentration gas oxidation release, and power consumption, energy conservation and environmental protection is greatly decreased；It realizes preferentially using ultralow dense methane oxidized apparatus driving, is short of power in ultralow dense methane oxidized apparatus or when failure simultaneously, electric drive seamless interfacing and supplement；And the power resources for producing compressed air using super low-concentration gas and electric energy as coal mine further increase the reliability and safety margin of coal mine compressed air system.
Description
Technical field
The present invention relates to coal mining apparatus field, in particular to one kind can be aoxidized using ultralow concentration gas heat into
The system and its regulation method of row air compression.
Background technique
Compressed air due to conveying is convenient, compressibility is good, without pyrophorisity, it is clean it is pollution-free, pernicious gas can be diluted, be not necessarily to
Many advantages, such as considering recycling, is to be only second to one of main energy sources of electric power in bargh.Pneumatic plant is as mine
One of well four big equipment of tradition, mainly undertake coal mine excavation face Work tool and compressed-air self-help system gas, especially certain
In the mine that geological conditions is poor, tomography is more and stone drifting amount is big, equipment installed capacity and power are all very big.Therefore it compresses empty
Gas energy saving of system must just take at the beginning of design.
And mine gas refers to toxic, pernicious gas general name of the underground based on methane, independent nail alkane sometimes.Gas
Lighter than air, easily diffusion, permeability are strong, are easy to be released from adjacent layer across rock stratum by goaf.Gas itself is non-toxic, but not
It can be breathed for people, when gas density is more than 50% in mine air, death by suffocation due to anoxic can be made one.Gas can burn or
Explosion, gas explosion is one of coal mine major casualty, existing much since gas explosion causes casualties and seriously both at home and abroad
Destroy the example of production.Therefore effective precautionary measures must be taken, avoids that gas explosion accident occurs, it is ensured that safety in production.
Mine gas is the gas of the association in the generation of coal and the metamorphic process of coal.The gas generated during coal-forming is ancient times
At the initial stage of accumulation coal-forming, cellulose and organic matter decompose plant through the effect of anaerobic bacteria.In addition, in high temperature, high pressure
In environment, while coal-forming, due to physics and chemical action, continue to generate gas.
A large amount of ultralow concentration gas gas can be generated in pit mining, the gas density in the gas is only 1-3%, because
The content is far below explosion critical content, therefore the gas generally directly empties, and both waste of energy also polluted environment；And existing mine
Since it is desired that compressed air when well is exploited, therefore while preparing compressed air, needs to consume a large amount of electric energy, can will there are currently no technology
The ultralow concentration gas gas utilizes progress air compression.
Summary of the invention
Aiming at the problem that the above-mentioned methane gas that can not efficiently use super low concentration in the prior art is so as to cause its waste,
The present invention provides a kind of system and its air compression control method that air compression is carried out using ultralow concentration gas.
The present invention is achieved through the following technical solutions: a kind of air compression system using ultralow concentration gas, including is used to oxygen
Change the oxidation module of processing ultralow concentration gas and provides the compression module that energy carries out gas compression by oxidation module；Also wrap
The compressed air reservoir connecting with driving compression module is included, the compression used by compressed air reservoir output for mine is empty
Gas.
It is worth noting that the system in the present invention mainly includes three parts, wherein the oxidation module is for receiving
Collect a large amount of ultralow concentration gas gases generated from mine, the chemical energy contained in the gas is then utilized by oxidation reaction
It is changed into thermal energy, so that the thermal energy collecting of generation is transferred to the compression module, by compression module compressed air and injects pressure
In contracting air reservoir.Because the methane gas of super low concentration has available chemical energy source, made wherein by oxidation reaction
Main can be utilized by the gas of ingredient of methane of content rareness, so that waste heat be utilized to carry out thermal energy output.
Further, the compression module includes the both vapor compression component connecting with compressed air reservoir and supplement compression group
Part；The high steam driving that the both vapor compression component is supplied by the oxidation module carries out air compression.This programme is upper
It states and optimizes on the basis of scheme, although the device in Gas scale of construction of super low concentration is larger, because effective energy gas content is less, only
It is less by the compressed air individually by the methane gas oxidation energy supply manufacture of super low concentration, therefore need to be provided with compressed air reservoir
It is buffered, flow velocity can not only be stablized, while there is certain margin value, it can one timing of emergency service in equipment fault
Long energy.But meanwhile the safety in order to guarantee whole system, the compression module include by the steam of oxidation module function
Compression assembly and other energy energy supply supplement compression assembly, when the air in compressed air reservoir in a certain range when, can
Only energized by oxidation module；Both vapor compression component and supplement can be started if when compressed air reservoir amount drops to certain value simultaneously
Compression assembly.And the power source of the supplement compression assembly includes the energy such as electric energy, wind energy, water energy or solar energy.
Further, the both vapor compression component includes steam turbine and A air compressor machine, and the steam turbine receives layer of oxidation mould
The high steam of block conveying drives A air compressor machine compressed air and inputs storage in compressed air reservoir.Because of oxidation module output
It is the steam of high temperature and pressure, therefore the steam is passed directly into steam turbine and drives output shaft rotation, to drive A air compressor machine will be external
Air sucking compression.
Further, the supplement compression assembly includes A motor and by the motor-driven B air compressor machine of A, the B pneumatics
Machine compressed air simultaneously inputs storage in compressed air reservoir.Here the supplement compression assembly is limited to be driven by electricity, it is simple high
Effect.
Further, at least two groups are arranged in the supplement compression assembly, and the output end of the compressed air reservoir, which is equipped with, to be cut
Disconnected valve.
Further, the compressed air reservoir, which is equipped with, adjusts compression mould according to the pressure value in compressed air reservoir
The pressure transmitter of block conveying capacity.
Further, it the both vapor compression component and supplements the output end of compression assembly and is equipped with and check-valves.
Further, the oxidation module includes sequentially connected mixing blower fan, mixer, methane oxidized apparatus and waste heat
Boiler is introduced air into mixer by mixing blower fan and is sent into gas with being present in after the ultralow concentration gas in mixer mixes
It is aoxidized in oxidation unit, and the high-temperature flue gas exported in methane oxidized apparatus is passed through generation high steam in waste heat boiler and again will
High steam, which inputs, carries out air compression in compression module.
Further, the oxidation module further includes being all connected with waste heat boiler and mixer and being used to collect cryogenic gas
Smoke evacuation component, the smoke evacuation component includes sequentially connected air-introduced machine and chimney.Super low-concentration gas enters methane oxidized apparatus
Oxidation, part low-temperature flue gas are discharged by air-introduced machine, chimney；The high-temperature flue gas that ultralow dense methane oxidized apparatus generates enters waste heat
Boiler recycles heat, and remaining low-temperature flue gas is discharged by air-introduced machine, chimney.The high temperature of waste heat boiler generation, high pressure superheated steam
Steam turbine is driven, gas driving air compressor machine is driven to produce compressed air；The steam exhaust of steam turbine discharge is condensed through subcooler
Cheng Shui, into water tank；Softened water in water tank gives waste heat boiler moisturizing by small pump.
A kind of air compression control method, a kind of air compression system using ultralow concentration gas for controlling above-mentioned carry out
Air compression；
When pressure is less than 0.8MPa in the compressed air reservoir, opens both vapor compression component and all supplement compression assemblies are given
Compressed air reservoir provides compressed air；When the compressed air reservoir (1) interior pressure is greater than 0.85MPa, only there are vapour pressures
Contracting component and any supplement compression assembly work on；
When pressure is greater than 0.85MPa less than 0.9MPa in the compressed air reservoir, both vapor compression component and any benefit are opened
It fills compression assembly and provides compressed air to compressed air reservoir；It is closed when pressure is greater than 0.95MPa in the compressed air reservoir
Close all supplement compression assemblies；
When pressure is greater than 0.95MPa less than 1.0MPa in the compressed air reservoir, only opens both vapor compression component and pressure is provided
Contracting air closes compression module when pressure is greater than 1.1MPa in the compressed air reservoir.
Here specific compressed air Supply Method, the pressure transmitter described first and both vapor compression component and benefit are defined
It fills compression assembly to connect and controlled, when the pressure in entire compressed air reservoir is greater than 1.0MPa and the both vapor compression group
Part and it is inactive when, entire compression module is simultaneously inactive, when the pressure in compressed air reservoir declines always and lower than 1.0MPa
When greater than 0.9MPa, then it can open both vapor compression component and carry out compressed air supply.If compressed air reservoir pressure is under at this time
When drop trend is changed into ascendant trend or maintains the pressure range, then both vapor compression component is always on and supplies compression sky
Gas, until pressure rise and more than 1.1MPa after just stop working.
And only when pressure or on a declining curve and lower than 0.9MPa after just open one group of supplement compression assembly, if at this time
When compressed air reservoir pressure is changed into ascendant trend by downward trend or maintains the pressure range, then both vapor compression component and
The supplement compression assembly is continued for work, just closes the supplement compression assembly until pressure rising reaches 0.9MPa.
Entire compression module is then opened when similarly, less than 0.85MPa carries out compressed air supply, and in actual use, meeting
According to specific compressed gas wear rate, whole system is set, so that when the work of entire compression module, with gas highest
Peak period, compressed air depletion rate and time consuming product should be less than the compressed air conveying speed and consumption of compression module
The sum of tolerance when pressure value is 1.1MPa in the entire compressed air reservoir of the sum of products of time.Physical relationship expression formula is as follows:
HConsumption< T(HSupply+HStorage tank)
Wherein HConsumptionThe as compressed air consumption of the period, HSupplyThe as compressed air supply of the period, and HStorage tankInside
Storage tolerance when portion's air pressure is 1.1MPa；In order to guarantee safety, then it will increase a coefficient T, the range of the coefficient T is 0.2-
0.7。
Compared with prior art, the present invention have the following advantages that and the utility model has the advantages that
The present invention drives mine air compressor system with the energy of super low-concentration gas oxidation release, and power consumption is greatly decreased, energy conservation
Environmental protection；
It realizes preferentially using ultralow dense methane oxidized apparatus driving, is short of power or failure in ultralow dense methane oxidized apparatus simultaneously
When, electric drive seamless interfacing and supplement；
And the power resources for producing compressed air using super low-concentration gas and electric energy as coal mine further increase coal mine compression
The reliability and safety margin of air system.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other features of the invention,
Objects and advantages will become apparent:
Fig. 1 is the process flow diagram of whole system of the invention；
Fig. 2 is compressed air Supply Method flow chart of the invention.
Wherein: 1- compressed air reservoir, 2- steam turbine, 3-A air compressor machine, 4-A motor, 5-B air compressor machine, 6- stop valve,
7- pressure transmitter, 8- check-valves, 9- mixing blower fan, 10- mixer, 11- methane oxidized apparatus, 12- waste heat boiler, 13- draw
Blower, 14- chimney, 15- cooler, 16- water tank, 17- water pump.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It is also possible to be connected directly, is also possible to indirectly connected through an intermediary, it can
To be the connection inside two elements.For the ordinary skill in the art, concrete condition understands above-mentioned term at this
Concrete meaning in invention.
Embodiment 1:
A kind of air compression system using ultralow concentration gas of the present embodiment, including oxidation module, compression module and with driving press
The compressed air reservoir 1 of contracting module connection exports the compressed gas used for mine by the compressed air reservoir 1.Wherein institute
Stating oxidation module is for collecting a large amount of ultralow concentration gas gases generated from mine, and then being utilized by oxidation reaction should
All energy gas in gas generate thermal energy, so that the thermal energy collecting of generation is transferred to the compression module, by compression mould
In block compressed air and injecting compressed air storage tank 1.Because the methane gas of super low concentration has available chemical energy source, lead to
Peroxidization enables rare main of wherein content being utilized by the gas of ingredient of methane, to be carried out using waste heat
Thermal energy output.
Compression module includes the both vapor compression component connecting with compressed air reservoir 1 and supplement compression assembly；The steam
The high steam driving that compression assembly is supplied by the oxidation module carries out air compression.
Embodiment 2:
The present embodiment is that restriction is optimized on the basis of above-described embodiment 1, and the both vapor compression component includes steam turbine 2
With A air compressor machine 3, the high steam that the steam turbine 2 receives oxidation module conveying drives 3 compressed air of A air compressor machine and inputs
Storage in compressed air reservoir 1.
Supplement compression assembly includes A motor 4 and the B air compressor machine 5 by the driving of A motor 4,5 compressed air of B air compressor machine
And input storage in compressed air reservoir 1.
Embodiment 3:
A kind of air compression system using ultralow concentration gas of the present embodiment, as shown in Figure 1, including oxidation module, compression module
The compressed air reservoir 1 connecting with driving compression module, the compression used by the compressed air reservoir 1 output for mine are empty
Gas.
Wherein the oxidation module is then passed through for collecting a large amount of ultralow concentration gas gases generated from mine
Oxidation reaction generates thermal energy using all energy gas in the gas, so that the thermal energy collecting of generation is transferred to the compression
Module, by compression module compressed air and injecting compressed air storage tank 1.
Compression module includes the both vapor compression component connecting with compressed air reservoir 1 and supplement compression assembly；The steam
The high steam driving that compression assembly is supplied by the oxidation module carries out air compression.
Both vapor compression component includes steam turbine 2 and A air compressor machine 3, and the steam turbine 2 receives the height of oxidation module conveying
Pressure steam drives 3 compressed air of A air compressor machine and inputs storage in compressed air reservoir 1.
Supplement compression assembly includes A motor 4 and the B air compressor machine 5 by the driving of A motor 4,5 compressed air of B air compressor machine
And input storage in compressed air reservoir 1.The supplement compression assembly is provided with two groups, and one group is electric compression assembly A, and another group
For electric compression assembly B.The output end of the compressed air reservoir 1 is equipped with stop valve 6.
Embodiment 4:
The present embodiment is that restriction is optimized on the basis of above-described embodiment 1, and the compressed air reservoir 1 is equipped with according to pressure
Pressure in contracting air reservoir 1 adjusts the pressure transmitter 7 of compression module conveying capacity.
It is equipped with check-valves 8 on the pipeline at output of both vapor compression component and supplement compression assembly, to prevent compressed gas
Reflux lead to equipment fault.And oxidation module includes sequentially connected mixing blower fan 9, mixer 10, methane oxidized apparatus 11
With waste heat boiler 12, the ultralow concentration gas in mixer 10 and being present in mixer 10 is introduced air by mixing blower fan 9
It is sent into methane oxidized apparatus 11 and aoxidizes after mixing, and the high-temperature flue gas exported in methane oxidized apparatus 11 is passed through waste heat boiler
High steam is generated in 12, and high-temperature steam is inputted into progress air compression in compression module again.
Further, the oxidation module further includes being all connected with waste heat boiler 12 and mixer 10 and being used to collect low temperature
The smoke evacuation component of gas, the smoke evacuation component include sequentially connected air-introduced machine 13 and chimney 14.Super low-concentration gas enters gas
Oxidation unit 11 aoxidizes, and part low-temperature flue gas is discharged by air-introduced machine 13, chimney 14；What ultralow dense methane oxidized apparatus 11 generated
High-temperature flue gas enters waste heat boiler 12 and recycles heat, and remaining low-temperature flue gas is discharged by air-introduced machine 13, chimney 14.Waste heat boiler 12
The high temperature of generation, high pressure superheated steam drive steam turbine 2, and gas driving air compressor machine is driven to produce compressed air；Steam turbine 2
The steam exhaust of discharge is condensed into water through subcooler 15, into water tank 16；Softened water in water tank 16 gives waste heat pot by water pump 17
12 moisturizing of furnace.
The air compression control method of the present embodiment is as follows:
The pressure transmitter 7 described first connect and is controlled with both vapor compression component and supplement compression assembly, when entire compression
Pressure in air reservoir 1 be greater than 1.0MPa and the both vapor compression component and it is inactive when, entire compression module is simultaneously inactive,
When the pressure in compressed air reservoir 1 declines always and is greater than 0.9MPa lower than 1.0MPa, then both vapor compression component can be opened
Carry out compressed air supply.If 1 pressure of compressed air reservoir is changed into ascendant trend by downward trend or maintains the pressure at this time
When power section, then both vapor compression component is always on and supplies compressed air, until pressure rise and more than 1.1MPa after just stop
Only work.
And only when pressure or on a declining curve and lower than 0.9MPa after just open one group of supplement compression assembly, if at this time
When 1 pressure of compressed air reservoir is changed into ascendant trend by downward trend or maintains the pressure range, then both vapor compression component
It is continued for work with the supplement compression assembly, just closes the supplement compression assembly until pressure rising reaches 0.9MPa.And such as
Shown in Fig. 2, it is provided with the pressure value of a self-test, once the pressure in compressed air reservoir 1 opens vapour pressure at the same time
When being increased beyond 0.95MPa in the case where contracting component and electric compression assembly A, then electric compression assembly A, the both vapor compression group are closed
Part works on.
Entire compression module is then opened when similarly, less than 0.8MPa and carries out compressed air supply, as shown in Fig. 2, wherein same
Sample is equipped with the pressure value of a self-test, once the pressure in compressed air reservoir 1 opens both vapor compression component, voltage at the same time
When being increased beyond 0.85MPa in the case where contracting component A and electric compression assembly B, then electric compression assembly B, the both vapor compression are closed
Component and electricity compression assembly A work on.
And in actual use, can whole system be set according to specific compressed gas wear rate, so that ought entirely press
When contracting module works, compression module should be less than with gas top period, compressed air depletion rate and time consuming product
Compressed air conveying speed and the entire compressed air reservoir 1 of time consuming sum of products in pressure value be 1.1MPa when tolerance
The sum of.Physical relationship expression formula is as follows:
HConsumption< T(HSupply+HStorage tank)
Wherein HConsumptionThe as compressed air consumption of the period, HSupplyThe as compressed air supply of the period, and HStorage tankInside
Storage tolerance when portion's air pressure is 1.1MPa；In order to guarantee safety, then it will increase a coefficient T, the range of the coefficient T is 0.2-
0.7。
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: not
A variety of change, modification, replacement and modification can be carried out to these embodiments by being detached under the principle of the present invention and objective, of the invention
Range is defined by the claims and their equivalents.
Claims (10)
1. a kind of air compression system using ultralow concentration gas, it is characterised in that: including being used to oxidation processes ultralow concentration gas
Oxidation module and by oxidation module provide energy carry out gas compression compression module；It further include connecting with driving compression module
The compressed air reservoir (1) connect exports the compressed gas used for mine by the compressed air reservoir (1).
2. a kind of air compression system using ultralow concentration gas according to claim 1, it is characterised in that: the compression mould
Block includes the both vapor compression component connecting with compressed air reservoir (1) and supplement compression assembly；The both vapor compression component is by institute
The high steam driving for stating oxidation module supply carries out air compression.
3. a kind of air compression system using ultralow concentration gas according to claim 1 or 2, it is characterised in that: the steaming
Vapour compression assembly includes steam turbine (2) and A air compressor machine (3), and the high pressure that the steam turbine (2) receives oxidation module conveying is steamed
Vapour drives A air compressor machine (3) compressed air and inputs storage in compressed air reservoir (1).
4. a kind of air compression system using ultralow concentration gas according to claim 2, it is characterised in that: the supplement pressure
Contracting component includes A motor (4) and the B air compressor machine (5) by A motor (4) driving, and B air compressor machine (5) compressed air simultaneously inputs
Storage in compressed air reservoir (1).
5. a kind of ultralow concentration gas oxidation driving mine air compressor system according to claim 2 or 4, feature exist
In: at least two groups are arranged in the supplement compression assembly, and the output end of the compressed air reservoir (1) is equipped with stop valve (6).
6. a kind of air compression system using ultralow concentration gas according to claim 1 or 2 or 4, it is characterised in that: described
Compressed air reservoir (1) is equipped with the pressure that compression module conveying capacity is adjusted according to the pressure value in compressed air reservoir (1)
Transmitter (7).
7. a kind of air compression system using ultralow concentration gas according to claim 2 or 4, it is characterised in that: the steaming
The output end of vapour compression assembly and supplement compression assembly is equipped with check-valves (8).
8. a kind of air compression system using ultralow concentration gas according to claim 1 or 2 or 4, it is characterised in that: described
Oxidation module includes sequentially connected mixing blower fan (9), mixer (10), methane oxidized apparatus (11) and waste heat boiler (12),
It is introduced air into mixer (10) after being mixed with the ultralow concentration gas being present in mixer (10) and is sent by mixing blower fan (9)
Enter oxidation in methane oxidized apparatus (11), and the high-temperature flue gas exported in methane oxidized apparatus (11) is passed through waste heat boiler (12)
High-temperature steam is inputted carry out air compression in compression module again by middle generation high steam.
9. a kind of air compression system using ultralow concentration gas according to claim 8, it is characterised in that: the layer of oxidation mould
Block further includes the smoke evacuation component for being all connected with waste heat boiler (12) and mixer (10) and be used to collect cryogenic gas, the smoke evacuation
Component includes sequentially connected air-introduced machine (13) and chimney (14).
10. a kind of air compression control method, it is characterised in that: a kind of using ultralow described in claim 7 for controlling
The air compression system of concentration gas carries out air compression；
When the compressed air reservoir (1) interior pressure is less than 0.8MPa, both vapor compression component and all supplement compression groups are opened
Part provides compressed air to compressed air reservoir (1)；It is only stayed when the compressed air reservoir (1) interior pressure is greater than 0.85MPa
There are both vapor compression component and any supplement compression assembly to work on；
When the compressed air reservoir (1) interior pressure, which is greater than 0.85MPa, is less than 0.9MPa, both vapor compression component and any is opened
It supplements compression assembly and provides compressed air to compressed air reservoir (1)；When the compressed air reservoir (1), interior pressure is greater than
All supplement compression assemblies are closed when 0.95MPa；
When the compressed air reservoir (1) interior pressure, which is greater than 0.95MPa, is less than 1.0MPa, only opens both vapor compression component and provide
Compressed air closes compression module when the compressed air reservoir (1) interior pressure is greater than 1.1MPa.
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