CN109882318A - The gas electricity unit and adjusting method of flow and fluctuation of concentration automatic adjustment - Google Patents
The gas electricity unit and adjusting method of flow and fluctuation of concentration automatic adjustment Download PDFInfo
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- CN109882318A CN109882318A CN201910017443.4A CN201910017443A CN109882318A CN 109882318 A CN109882318 A CN 109882318A CN 201910017443 A CN201910017443 A CN 201910017443A CN 109882318 A CN109882318 A CN 109882318A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The present invention relates to gas electricity units and adjusting method that flow and fluctuation of concentration automatically adjust, it include: gas storage tank, CNG storage tank, LNG storage tank, surge tank, gas essence mixes tank, gas slightly mixes tank, controller, gasifier, compressor, sensor, electrically-controlled valve, gas pipeline, gas electricity unit etc., overcome coal mine gas flow, fluctuation of concentration hang-up, it is steadily generated electricity using the gas of the various concentration of coal extraction, in coal mine gas concentration, when flow cannot support gas electricity unit to generate electricity at full capacity, with the gas more than needed of storage, the CNG of outsourcing, LNG is as supplement gas source, automatically adjust gas flow, concentration, make full use of gas emptying of the concentration less than 8%, avoid the wasting of resources, environmental disruption, simultaneously, gas generator is used as backup power source, avoid overlapping investment, improve coal mine electricity consumption Safety guarantee dynamics has biggish economic value and practical value.
Description
Technical field
The present invention relates to gas electricity units and adjusting method that flow and fluctuation of concentration automatically adjust, belong to gas utilization
Apparatus field.
Background technique
Coal mine gas is preservation in coal seam and the hydrocarbon gas of coal measure strata, is both high-quality clean energy resource and greenhouse gas
Body.2016, national 173 billion cubic meter of coal extraction amount, 90 billion cubic meter of utilization, utilization rate only 52%.Prior art condition
Under, according to gas density height, mainly have utilization ways several in this way: the high concentration gas of concentration >=30% is directly used as chemical industry
Raw material, fuel gas generation；8~30% low concentration gas, internal combustion power generation, the gas in China about 60% or more is low concentration gas；
The ultralow concentration gas of concentration < 8%, ventilation air methane oxidation steam-electric power.But since huge, throwing is invested in ventilation air methane oxidation steam-electric power
Money return is low, even if country has the gas utilization of 0.2 yuan/cube or so to subsidize, the investment enthusiasm of investor does not increase yet, dense
It spends the ultralow concentration gas less than 8% to be difficult to be utilized, essentially directly be discharged into air, not only waste of resource, but also welding.
For same seat coal mine, gas drainage under suction is more complicated, puts more, wide, fluctuation greatly, adopts face, goaf, bottom pumping
There is extraction at the positions such as lane, heading end, this coal seam, and high concentration drainage system, low concentration drainage system are simultaneously deposited, and each position is taken out
Put that concentration, drawing and deflating flux difference are big, it is uneven to change, very unstable, either extraction flow or extraction concentration all exist
Biggish fluctuation be also often caught in such awkward situation even investment has the coal mine of gas electricity unit: often because of extraction stream
Measure not high, extraction concentration and be lower than 8%, gas not enough store, convey, generate electricity, is forced to empty, and unit is unable to standard-sized sheet, it is frequent but because of
Extraction flow is excessive, extraction excessive concentration, and gas utilization is endless, still to empty.
The 436th article of new edition " safety regulations in coal mine " (general bureau enables No. 87) regulation, mine should have two circuits electric
Source route.When using single circuit power supply, it is necessary to have backup power source.The capacity of backup power source must satisfy ventilation and drainage, promotion etc.
It is required that and guaranteeing chief ventilators etc. and reliably being started and run in 10min.Backup power source should have special messenger to be responsible for managing and tie up
Shield at least carries out one-shot and operation test in every 10 days, mine ventilation etc. must not be influenced during test, test data sheet will achieve
It is for future reference.
The coal mine of gas electricity unit is being had, then is being equipped with backup power source, overlapping investment, and waste, but gas drainage
Flow, extraction concentration fluctuate big problem, so that gas electricity unit does not undertake the function of backup power source again.
CN201520348832 describes a kind of combustion-supporting equipment of gas electricity unit EFI gasoline, when gas density≤8%
When the combustion-supporting power generation of EFI gasoline, the gas stored above of gas density > 8% operation.CN201510271255 describes a kind of mixed gas
LNG makes full use of the gas electricity unit of concentration gas below 8% to mix gas LNG fuel apparatus.Both device and method, all
It is intended to that concentration gas below 8% is made full use of to provide solution, but gasoline, LNG require outsourcing, LNG supplies source
It is less, it is not easy to purchase, there are still many deficiencies.
Summary of the invention
The present invention provides the gas electricity unit and adjusting method of flow and fluctuation of concentration automatic adjustment, overcomes the prior art
Middle gas electricity equipment is difficult to adapt to the big defect of gas drainage under suction flow, extraction fluctuation of concentration, high efficiency, make full use of it is various
Concentration, various flows coal mine gas steadily generate electricity.
The technical scheme to solve the above technical problems is that
The gas electricity unit and adjusting method of flow and fluctuation of concentration automatic adjustment, comprising: gas storage tank, CNG storage tank, LNG
Storage tank, surge tank, gas essence mix tank, gas and slightly mix tank, controller, gas generator, gasifier, high pressure compressor, middle pressure pressure
The equipment such as contracting machine, flow sensor, pressure sensor, concentration sensor, liquid level sensor, air inlet electrically-controlled valve, low concentration
The electrically-controlled valves such as gas air inlet electrically-controlled valve, high concentration gas air inlet electrically-controlled valve, air inlet duct are high concentration gas input pipe, low dense
Spend gas input pipe, buffering gas slightly mixes the gas pipelines such as input pipe, and by CNG, LNG, high concentration gas, low concentration watt
This, air be mixed into flow, fluctuation of concentration amplitude be no more than setting value flow and concentration regulating method, the LNG storage tank,
CNG storage tank, gas storage tank are connected by gas tube with surge tank, the high concentration gas input pipe and gas storage tank phase
Connection, the LNG storage tank, CNG storage tank are connected by gas tube with gas storage tank, the high concentration gas input
Pipe, low concentration gas input pipe, air inlet duct slightly mix tank with gas and are connected, and the gas slightly mixes tank, surge tank passes through
Gas tube mixes tank with gas essence and is connected, and the gas essence mixes tank and is connected by gas tube with gas generator.
The high concentration gas input pipe, is disposed with flow sensor, gas concentration sensor, high concentration gas thereon
Air inlet electrically-controlled valve slightly mixes tank with coal mine high concentration gas drainage system, gas and is connected, passes through storage gas input pipe, storage
Gas air inlet electrically-controlled valve is connected with coal mine high concentration gas drainage system, gas storage tank.
The low concentration gas input pipe, is disposed with flow sensor, gas concentration sensor, low concentration gas thereon
Air inlet electrically-controlled valve slightly mixes tank with coal mine light concentration mash gas drainage system, gas and is connected.
The air inlet duct is disposed with flow sensor, air inlet electrically-controlled valve thereon, and lead to atmosphere for one end, and one
Tank is slightly mixed with gas and is connected in end.
The gas storage tank, is disposed with pressure sensor, gas concentration sensor thereon, is inputted by high concentration gas
Pipe, storage gas input pipe, high pressure compressor, be connected with coal mine high concentration gas drainage system, by storage gas to delay
Tank electrically-controlled valve, storage gas efferent duct are rushed, is connected with surge tank, is stored up by CNG to gas storage tank efferent duct, CNG to gas
Tank electrically-controlled valve, storage gas input pipe, high pressure compressor, be connected with CNG storage tank, by LNG to gas storage tank electrically-controlled valve,
LNG gasification gas is to gas storage tank efferent duct, intermediate pressure compressor, LNG gasification gas efferent duct, gasifier, LNG efferent duct, LNG
Electrically-controlled valve is exported, is connected with LNG storage tank.
The CNG storage tank is disposed with pressure sensor, gas concentration sensor, CNG aerating mouth, throttle valve thereon, leads to
CNG is crossed to surge tank electrically-controlled valve, CNG to surge tank efferent duct, is connected with surge tank, by CNG to gas storage tank efferent duct,
CNG is connected to gas storage tank electrically-controlled valve with gas storage tank.
The LNG storage tank is disposed with liquid level sensor, LNG liquid addition mouth, throttle valve thereon, is exported by LNG automatically controlled
Valve, LNG efferent duct, gasifier, intermediate pressure compressor, LNG gasification gas to surge tank efferent duct, LNG to surge tank electrically-controlled valve, with
Surge tank is connected, and exports electrically-controlled valve, LNG efferent duct, gasifier, intermediate pressure compressor, LNG gasification gas to gas by LNG
Storage tank efferent duct, storage gas input pipe, high pressure compressor, are connected with gas storage tank.
The surge tank is disposed with pressure sensor, gas concentration sensor thereon, passes through buffering gas to thick mixed tank
Electrically-controlled valve, buffering gas slightly mix input pipe, and tank is slightly mixed with gas and is connected, and pass through buffering gas to the mixed tank electrically-controlled valve of essence, buffering
Gas essence mixes input pipe, mixes tank with gas essence and is connected, by storing gas efferent duct, storage gas to surge tank electrically-controlled valve,
It is connected with gas storage tank, by CNG to surge tank electrically-controlled valve, CNG to surge tank efferent duct, is connected with CNG storage tank, passes through
LNG to surge tank electrically-controlled valve, LNG gasification gas to surge tank efferent duct, intermediate pressure compressor, LNG gasification gas efferent duct, gasification
Device, LNG efferent duct, LNG export electrically-controlled valve, are connected with LNG storage tank, pass through storage gas efferent duct, storage gas to buffering
Tank electrically-controlled valve is connected with gas storage tank.
The gas slightly mixes tank, is disposed with pressure sensor, gas concentration sensor thereon, is disposed with high concentration in tank
The blind screen casing of gas, the blind screen casing of low concentration gas, the blind screen casing of air, the buffering blind screen casing of gas, above-mentioned blind screen casing slightly mix tank with gas
Central axis is axis, and axial symmetry distribution, slightly mixed input pipe communicates the buffering blind screen casing of gas with buffering gas, the blind screen casing of high concentration gas
It is communicated with high concentration gas input pipe, the blind screen casing of low concentration gas is communicated with low concentration gas input pipe, the blind screen casing of air and sky
Gas input pipe communicates, and gas slightly mixes tank by slightly mixing gas input pipe, mixes tank with gas essence and is connected.
The gas essence mixes tank, is disposed with pressure sensor, gas concentration sensor thereon, and thick mixed watt is disposed in tank
This blind screen casing, the buffering blind screen casing of gas, the buffering blind screen casing of gas are arranged in gas essence and mix on tank central axis, slightly the mixed blind screen casing of gas
Tank central axis is mixed as axis using gas essence, axial symmetry is distributed with more, it is preferable that be distributed with 4, pass through the mixed input of buffering gas essence
It manages, buffer gas to the mixed tank electrically-controlled valve of essence, the buffering blind screen casing of gas, be connected with surge tank, by slightly mixed gas input pipe, slightly
The mixed blind screen casing of gas slightly mixes tank with gas and is connected, and electrically-controlled valve is exported by the mixed gas input pipe of essence, the mixed gas of essence, with gas
Generator is connected.
The blind screen casing, the screen casing cecum being enclosed in tank, which closes screen casing open end opening non-porous, outside tank, hole, blind sieve
Length of tube is slightly less than tank body, parallel with tank body central axis, the blind screen casing of high concentration gas, the blind screen casing of low concentration gas, the blind sieve of air
The blind screen casings such as pipe, the buffering blind screen casing of gas, are uniformly provided with small sieve pore towards the tank interior tube body entire body of tank body central axis side, slightly
The mixed blind screen casing tank interior tube body surrounding entire body of gas is uniformly provided with small sieve pore.
On the described thick mixed gas input pipe, the mixed gas input pipe of essence, it is disposed with flow sensor, gas density sensing
Device.
The gas generator is to be disposed with revolving speed biography thereon using the gas of a certain concentration value as the generator of fuel
Sensor, power sensor.
The controller is disposed with CPU and memory thereon, and the CPU is communicated with memory, and passes through data line,
With pressure sensor, gas concentration sensor, speed probe, power sensor, liquid level sensor, intermediate pressure compressor, high pressure
The electric connections such as the various electrically-controlled valves such as compressor and air inlet electrically-controlled valve, low concentration gas air inlet electrically-controlled valve are got up, to it
Control, communication.
The gas flow and fluctuation of concentration Automatic adjustment method is as follows:
(1) adjustment factor: slightly mixed tankage size is big for the mixed tank of gas storage tank, CNG storage tank, LNG storage tank, surge tank, gas essence, gas
It is small, it is determined according to adjustment factor, adjustment factor is exactly in the case where the input of absolutely not other gas gas sources, and storage tank is provided
Minimum gas total amount, these gas can support gas electricity unit to generate electricity at full capacity with rated power minute of certain time length
Number.Gas essence mixes the adjustment factor that tank, gas slightly mix tank, surge tank, sets by radix, unit of minute, gas storage tank, CNG
The adjustment factor of storage tank, LNG storage tank is set by radix, unit of hour, it is preferable that gas essence mixes tank, gas and slightly mixes tank, delays
The adjustment factor for rushing tank is set as 1 minute, gas storage tank, CNG storage tank, LNG storage tank adjustment factor be set as 8 hours.
(2) flow, concentration automatic adjustment: after controller opens electrically-controlled valve, the high concentration watt in high concentration gas input pipe
This, the low concentration gas in low concentration gas input pipe, the air in air inlet duct, buffering gas, gas in surge tank
Storage gas in storage tank, the CNG in CNG storage tank, the gasification gas compressed after LNG gasification through intermediate pressure compressor itself are being pressed
Under power effect, Cong Shangyi working link is automatic to spray into subsequent work link.The total amount of penetrating by electrically-controlled valve opening size, open
The duration opened determines that controller controls aperture, the opening time of electrically-controlled valve, and the aperture of electrically-controlled valve is bigger, the opening time is longer, spray
The total amount entered is bigger, and the aperture of electrically-controlled valve is smaller, the opening time is shorter, and the total amount of penetrating is with regard to smaller.It is high concentration gas, low dense
Spend gas, buffering gas, air penetrating total amount is how many and high low 8 variables of respective original concentration, codetermined watt
The total amount of this gaseous mixture is how many, concentration level.Controller adjusts one or more variables in this 8 variables, just has adjusted watt
The flow of this gaseous mixture, concentration.Controller adjusts more accurate, and the flow of gas gaseous mixture, concentration are more accurate, fluctuating range
With regard to smaller.The flow of gas gaseous mixture, fluctuation of concentration amplitude are smaller, and gas generator can more work normally, and power generation, power are defeated
Also more steady out.
(3) the automatic coarse adjustment of flow, concentration: gas slightly mixes concentration, the pressure of gas, is set by controller and is controlled, controller
The flow that air in air inlet duct is acquired by flow sensor is acquired high by gas concentration sensor, flow sensor
Concentration gas input pipe, low concentration gas input pipe, buffering gas slightly mix input pipe, gas is dense in thick mixed gas input pipe
Degree, flow acquire gas by gas concentration sensor, pressure sensor and slightly mix concentration, the pressure that gas in tank slightly mixes gas, lead to
Speed probe, power sensor are crossed, gas generator revolving speed, realtime power are acquired, controller is sent out according to above-mentioned parameter, gas
It is automatically controlled to calculate and adjust air inlet electrically-controlled valve, low concentration gas air inlet electrically-controlled valve, high concentration gas air inlet for electric unit parameter
Opening time, the aperture of valve, buffering gas to thick mixed tank electrically-controlled valve, after electrically-controlled valve is opened, the height in high concentration gas input pipe
Concentration gas, the low concentration gas in low concentration gas input pipe, the air in air inlet duct, the buffering watt in surge tank
This is sprayed into corresponding blind screen casing under pressure itself effect, the sieve pore of blind screen casing entire body arrangement, equably by gas, air
It sprays into gas and slightly mixes each position of tank, gas air-flow, air draught meet near sieve pore, automatically, are equably mixed into certain
Concentration, certain pressure gas slightly mix gas.Sieve pore be distributed in tank body it is more uniform, gas air-flow, air stream interweave it is closer, watt
Concentration, the pressure of this thick mixed gas are more accurate.
Controller does not stop to adjust aperture, the opening time of above-mentioned electrically-controlled valve, and gas slightly mixes the concentration, pressure, fluctuation width of gas
Degree just constantly approaches and is finally reached setting value, and gas slightly mixes concentration, flow, the fluctuating range of gas, just reached setting value, watt
This thick mixed completion.
Gas slightly mixes the concentration of gas, flow allows to have biggish fluctuation, it is preferable that fluctuating range is less than 5%.
(4) the automatic accurate adjustment of flow, concentration: gas essence mixes concentration, the pressure of gas, is set by controller and is controlled, controller
Concentration, the flow that gas is slightly mixed by gas in gas concentration sensor, the thick mixed gas input pipe of flow sensor acquisition, by watt
This concentration sensor, flow sensor acquisition buffer gas essence mix the concentration of gas, flow in input pipe, are passed by gas density
Sensor, pressure sensor acquisition gas essence mix concentration, pressure that gas essence in tank mixes gas, pass through speed probe, power sensing
Device, acquires gas generator revolving speed, realtime power, and controller is calculated and adjusted according to above-mentioned parameter, gas electricity unit parameter
Opening time, aperture that gas mixes tank electrically-controlled valve to essence are buffered, after electrically-controlled valve is opened, the buffering gas in surge tank, at itself
Pressure effect under, spray into buffering the blind screen casing of gas in, gas slightly mix gas pressure itself, gas generator suction under,
It is inhaled into the slightly mixed blind screen casing of gas, buffering gas, gas are slightly mixed gas and equably sprays into gas by the sieve pore of blind screen casing entire body arrangement
The mixed each position of tank of essence, buffering gas air-flow, gas slightly mix gas air-flow and meet near sieve pore, automatically, are equably mixed into one
Determine concentration, the gas essence of certain pressure mixes gas.Sieve pore is distributed more uniform, the thick mixed air-flow of gas, buffering gas air-flow in tank body
Interweave closer, concentration, the pressure that gas essence mixes gas are more accurate.
Controller does not stop to adjust aperture, the opening time of above-mentioned electrically-controlled valve, and gas essence mixes the concentration, pressure, fluctuation width of gas
Degree just constantly approaches and is finally reached setting value, and gas essence mixes concentration, flow, the fluctuating range of gas, just reached setting value, watt
This essence is mixed to be completed.
Gas essence mixes the concentration of gas, flow only allows lesser fluctuation, it is preferable that fluctuating range is less than 1%.
(5) gas store: in gas flow, concentration coarse tuning process, controller calculate high concentration gas consumption it is endless,
Controller adjusts storage gas air inlet electrically-controlled valve aperture, opening time, starts high pressure compressor, and high concentration gas sprays into high pressure pressure
Contracting machine compresses certain multiple, it is preferable that after 250 times of compression, is stored in gas storage tank.If gas concentration sensor detects
High concentration gas concentration is more than 30%, controller instruction directly compression storage, if gas concentration sensor detects high concentration watt
This concentration is lower than 30%, and controller calculates and adjusts CNG to gas storage tank electrically-controlled valve, LNG to when the unlatching of gas storage tank electrically-controlled valve
Long, aperture, high concentration gas, CNG, LNG meet after mixing, and concentration is promoted to 30% or more, and recompression stores.
(6) surge tank is inflated: buffer tank pressure sensor acquisition buffer tank storage gas pressure simultaneously passes to controller, when
After surge tank storage gas pressure drops to setting value, controller is calculated, and is adjusted storage gas first and is opened to surge tank electrically-controlled valve
Duration, aperture are opened, under pressure itself effect, a certain amount of storage gas sprays into surge tank, and storage gas such as not enough uses, then
CNG is adjusted to surge tank electrically-controlled valve opening time, aperture, under pressure itself effect, a certain amount of CNG sprays into surge tank, CNG
It is used as inadequate, then adjusts LNG output electrically-controlled valve opening time, aperture, the compressed petroleum gas in LNG storage tank is in self gravitation effect
Under, gasifier gasification is flowed into, intermediate pressure compressor starts, after the pressurization of LNG gasification gas, unlatching LNG to surge tank electrically-controlled valve, one
Quantitative LNG gasification gas sprays into surge tank.After the storage gas pressure in surge tank reaches setting value, controller stopping is filled
Gas, surge tank inflation are completed.
(7) CNG is supplemented: CNG storage tank pressure sensor acquisition CNG pressure simultaneously passes to controller, when CNG pressure drops to
After setting value, controller alarm is reminded from outside and purchases CNG, through CNG aerating mouth, throttle valve, injects CNG storage tank, CNG pressure
Reach setting value, CNG supplement is completed.
(8) LNG is supplemented: LNG storage tank liquid level sensor acquisition LNG liquid level simultaneously passes to controller, when LNG liquid level drops to
After setting height, controller alarm is reminded from outside and purchases LNG, through LNG liquid addition mouth, throttle valve, injects LNG storage tank, LNG liquid
Position is more than setting height, and LNG supplement is completed.
(9) gas consumes priority: gas is set in the controller and consumes priority, the first priority: and low concentration gas,
Second priority: high concentration gas, third priority: storage gas, the 4th priority: CNG；5th priority: LNG.4th
Priority, the 5th priority can select one of them, can also choose, can also hand over simultaneously according to gas acquisition cost, convenience degree
Change order.First priority preferentially consumes, and the first priority gas not enough consumes, then consumes the gas of the second priority, with this
Analogize.
The beneficial effects of the present invention are:
The present invention can store high concentration gas more than needed, and outsourcing CNG, LNG are as supplement gas source, with this by coal mine
The high concentration gas of lower extraction, low concentration gas, gas, storage gas, outsourcing CNG, LNG be divided into 5 consumption priority
Not, the first priority preferentially consumes, and the first priority gas not enough consumes, then consumes the gas of the second priority, and so on,
Ensure when the gas density of underground coal mine extraction, flow cannot support gas electricity unit to generate electricity at full capacity with rated power,
Gas flow, concentration are automatically adjusted, ultralow concentration gas of the concentration less than 8% is especially made full use of, reduces concentration less than 8%
Ultralow concentration gas is directly discharged in air, and high efficiency makes full use of the coal mine gas of various concentration, various flows steadily to send out
Electricity overcomes coal mine gas flow, fluctuation of concentration hang-up, avoids the wasting of resources, environmental disruption, meanwhile, gas generator is used
Make backup power source, avoid overlapping investment, reduce coal mine investment burden, improves coal mine Electrical Safety and ensure dynamics, increase substantially
Gas electricity economic benefit, takes into account social benefit, has biggish practical value.
Detailed description of the invention
Fig. 1 is the gas electricity unit structural schematic diagram that flow and fluctuation of concentration automatically adjust
Fig. 2 is that gas slightly mixes tank the schematic diagram of the section structure
Fig. 3 is that gas essence mixes tank the schematic diagram of the section structure
Fig. 4 is blind screen casing schematic diagram
Wherein, it is mixed slightly to mix tank, 105- gas essence for 101- air, 102- low concentration gas, 103- high concentration gas, 104- gas
Tank, 106-LNG storage tank, 107- surge tank, 108- gas storage tank, 109-CNG storage tank, 201- air inlet duct, 202- low concentration
Gas input pipe, 203- high concentration gas input pipe, 204- buffering gas slightly mix input pipe, the mixed input of 205- buffering gas essence
Pipe, 206- storage gas input pipe, 207-CNG to gas storage tank efferent duct, 208-LNG gasification gas are exported to gas storage tank
Pipe, 209-CNG to surge tank efferent duct, 210- storage gas efferent duct, 211-LNG gasify gas to surge tank efferent duct,
212-LNG gasification gas efferent duct, 213-LNG efferent duct, 214- slightly mix gas input pipe, 215- essence mixes gas input pipe,
The blind screen casing of 216- high concentration gas, the blind screen casing of 217- low concentration gas, the blind screen casing of 218- air, the blind screen casing of 219- buffering gas,
220- slightly mix the blind screen casing of gas, 221- screen casing cecum, 222- sieve pore, 223- screen casing open end, 301- air inlet electrically-controlled valve,
302- low concentration gas air inlet electrically-controlled valve, 303- high concentration gas air inlet electrically-controlled valve, 304- store gas air inlet electrically-controlled valve, 305-
Buffer gas to the mixed tank electrically-controlled valve of essence, 306- buffer gas to it is thick mix tank electrically-controlled valve, 307-CNG to gas storage tank electrically-controlled valve,
308-LNG stores gas to surge tank electrically-controlled valve, 311- to gas storage tank electrically-controlled valve, 309-CNG to surge tank electrically-controlled valve, 310-
LNG mixes gas and exports electrically-controlled valve, 401- throttle valve, 402-CNG to surge tank electrically-controlled valve, 312-LNG output electrically-controlled valve, 313- essence
Aerating mouth, 403-LNG filling opening, 501- speed probe, 502- power sensor, 503- gas concentration sensor, 504- pressure
Force snesor, 505- flow sensor, 506- liquid level sensor, 61- high pressure compressor, 62- intermediate pressure compressor, 7- controller,
8- data line, 9- gasifier, 10- gas generator
Specific embodiment
Below in conjunction with attached drawing, embodiment, principles and features of the present invention are described, example is served only for explaining this hair
It is bright, it is not intended to limit the scope of the present invention.
As shown in Figure 1, the gas electricity unit and adjusting method of the flow and fluctuation of concentration automatic adjustment, comprising:
Gas storage tank 108, CNG storage tank 109, LNG storage tank 106, surge tank 107, gas essence mix tank 105, gas and slightly mix tank 104, control
Device 7, gas generator 10, gasifier 9, high pressure compressor 61, intermediate pressure compressor 62, flow sensor 505, pressure sensor
504, the equipment such as gas concentration sensor 503, liquid level sensor 506, air inlet electrically-controlled valve 301, low concentration gas air inlet electricity
Control valve 302, the electrically-controlled valves such as high concentration gas air inlet electrically-controlled valve 303, air inlet duct 201 is high concentration gas input pipe 203, low
Concentration gas input pipe 202, buffering gas slightly mix the gas pipelines such as input pipe 204, and by CNG, LNG, high concentration gas
103, low concentration gas 102, air 101 are mixed into flow, fluctuation of concentration amplitude is no more than the flow of setting value and concentration is adjusted
Method, the LNG storage tank 106, CNG storage tank 109, gas storage tank 108 are connected by gas tube with surge tank 107, institute
The high concentration gas input pipe 203 stated is connected with gas storage tank 108, the LNG storage tank 106, CNG storage tank 109 by watt
This pipeline is connected with gas storage tank 108, the high concentration gas input pipe 203, low concentration gas input pipe 202, air
Input pipe 201 and gas slightly mix tank 104 and are connected, the gas slightly mix tank 104, surge tank 107 by gas tube with watt
The mixed tank 105 of this essence is connected, and the gas essence mixes tank 105 and is connected by gas tube with gas generator 10.
As shown in Figure 1, the high concentration gas input pipe 203, is disposed with flow sensor 505, gas density thereon
Sensor 503, high concentration gas air inlet electrically-controlled valve 303 slightly mix 104 phase of tank with 103 drainage system of coal mine high concentration gas, gas
Connection, by storage gas input pipe 206, storage gas air inlet electrically-controlled valve 304, with 103 drainage system of coal mine high concentration gas,
Gas storage tank 108 is connected.The 103 drainage system extraction of high concentration gas to gas of underground coal mine high concentration gas 103 is sent out
Power station is input to gas storage tank 108, gas and slightly mixes in tank 104, in the case where gas flow, fluctuation of concentration are small, flow,
Concentration can meet one or several gas generators 10 generate electricity, flow, dense in the case where gas flow, fluctuation of concentration are big
Degree can not meet one or several gas generators 10 generate electricity.
As shown in Figure 1, the low concentration gas input pipe 202, is disposed with flow sensor 505, gas density thereon
Sensor 503, low concentration gas air inlet electrically-controlled valve 302 slightly mix 104 phase of tank with 102 drainage system of coal mine light concentration mash gas, gas
Underground coal mine low concentration gas 102 is input to watt with 102 drainage system extraction of low concentration gas to gas electricity station by connection
This is slightly mixed in tank 104, and in the case where gas flow, fluctuation of concentration are small, flow, concentration can meet one or several gas hairs
Motor 10 generates electricity, and in the case where gas flow, fluctuation of concentration are big, flow, concentration can not meet one or several gas hairs
Motor 10 generates electricity.
As shown in Figure 1, the air inlet duct 201, is disposed with flow sensor 505, air inlet electrically-controlled valve thereon
301, lead to atmosphere for one end, and one end slightly mixes tank 104 with gas and is connected, and air 101 is input to gas and is slightly mixed in tank 104.
As shown in Figure 1, the gas storage tank 108, is disposed with pressure sensor 504, gas concentration sensor thereon
503, by high concentration gas input pipe 203, storage gas input pipe 206, high pressure compressor 61, with coal mine high concentration gas
103 drainage systems are connected, by storage gas to surge tank electrically-controlled valve 310, storage gas efferent duct 210, with surge tank 107
It is connected, passes through CNG to gas storage tank efferent duct 207, CNG to gas storage tank electrically-controlled valve 307, storage gas input pipe 206, height
Compressor 61 is pressed, is connected with CNG storage tank 109, is stored up by LNG to gas storage tank electrically-controlled valve 308, LNG gasification gas to gas
Tank efferent duct 208, intermediate pressure compressor 62, LNG gasification gas efferent duct 212, gasifier 9, LNG efferent duct 213, LNG output electricity
Valve 312 is controlled, is connected with LNG storage tank 106.
As shown in Figure 1, the CNG storage tank 109, be disposed with thereon pressure sensor 504, gas concentration sensor 503,
CNG aerating mouth 402, throttle valve 401, by CNG to surge tank electrically-controlled valve 309, CNG to surge tank efferent duct 209, with surge tank
107 are connected, and by CNG to gas storage tank efferent duct 207, CNG to gas storage tank electrically-controlled valve 307, are connected with gas storage tank 108
It is logical.
As shown in Figure 1, the LNG storage tank 106, is disposed with liquid level sensor 506, LNG liquid addition mouth 403, throttling thereon
Valve 401, by LNG export electrically-controlled valve 312, LNG efferent duct 213, gasifier 9, intermediate pressure compressor 62, LNG gasification gas to delay
Tank efferent duct 211, LNG to surge tank electrically-controlled valve 311 are rushed, is connected with surge tank 107, electrically-controlled valve 312, LNG are exported by LNG
Efferent duct 213, gasifier 9, intermediate pressure compressor 62, LNG gasification gas to gas storage tank efferent duct 208, storage gas input pipe
206, high pressure compressor 61 are connected with gas storage tank 108.
As shown in Figure 1, the surge tank 107, is disposed with pressure sensor 504, gas concentration sensor 503 thereon,
Input pipe 204 is slightly mixed to thick mixed tank electrically-controlled valve 306, buffering gas by buffering gas, tank 104 is slightly mixed with gas and is connected, is led to
It crosses buffering gas and mixes input pipe 205 to the mixed tank electrically-controlled valve 305 of essence, buffering gas essence, mix tank 105 with gas essence and be connected, pass through
Gas efferent duct 210, storage gas are stored to surge tank electrically-controlled valve 310, is connected with gas storage tank 108, passes through CNG to buffering
Tank electrically-controlled valve 309, CNG to surge tank efferent duct 209, are connected with CNG storage tank 109, by LNG to surge tank electrically-controlled valve 311,
LNG gasification gas is defeated to surge tank efferent duct 211, intermediate pressure compressor 62, LNG gasification gas efferent duct 212, gasifier 9, LNG
Outlet pipe 213, LNG export electrically-controlled valve 312, are connected with LNG storage tank 106, are arrived by storage gas efferent duct 210, storage gas
Surge tank electrically-controlled valve 310 is connected with gas storage tank 108.
As shown in Figure 1 and Figure 2, the gas slightly mixes tank 104, is disposed with pressure sensor 504 thereon, gas density passes
Sensor 503 is disposed with the blind screen casing 216 of high concentration gas, the blind screen casing 217 of low concentration gas, the blind screen casing 218 of air, buffering in tank
The blind screen casing 219 of gas, above-mentioned blind screen casing slightly mix 104 central axis of tank using gas as axis, and axial symmetry distribution buffers the blind screen casing of gas
219, which slightly mix input pipe 204 with buffering gas, communicates, and the blind screen casing 216 of high concentration gas is communicated with high concentration gas input pipe 203,
The blind screen casing 217 of low concentration gas is communicated with low concentration gas input pipe 202, the blind screen casing 218 of air and 201 phase of air inlet duct
Logical, gas slightly mixes tank 104 by slightly mixing gas input pipe 214, mixes tank 105 with gas essence and is connected.
As shown in Figure 1, Figure 3, the gas essence mixes tank 105, is disposed with pressure sensor 504 thereon, gas density passes
Sensor 503 is disposed with the slightly mixed blind screen casing 220 of gas, the buffering blind screen casing 219 of gas, the buffering blind screen casing 219 of gas in tank and is arranged in
Gas essence is mixed on 105 central axis of tank, and slightly the mixed blind screen casing 220 of gas mixes 105 central axis of tank as axis using gas essence, and axial symmetry is distributed with
More, it is preferable that be distributed with 4, input pipe 205 mixed by buffering gas essence, buffering gas to essence mixes tank electrically-controlled valve 305, slow
The blind screen casing 219 of gas is rushed, is connected with surge tank 107, by slightly mixing gas input pipe 214, the slightly mixed blind screen casing 220 of gas, with
Gas slightly mixes tank 104 and is connected, and electrically-controlled valve 313 is exported by the mixed gas input pipe 215 of essence, the mixed gas of essence, with gas generator
10 are connected.
As shown in figure 4, the blind screen casing, the screen casing cecum 221 being enclosed in tank closes screen casing open end non-porous, outside tank
223 openings have hole, and blind screen casing length is slightly less than tank body, high concentration gas blind screen casing 216, low concentration parallel with tank body central axis
The blind screen casings such as the blind screen casing 217 of gas, the blind screen casing 218 of air, the buffering blind screen casing 219 of gas, towards tank body central axis side
Tank interior tube body entire body is uniformly provided with small sieve pore 222, and slightly the mixed blind 220 tank interior tube body surrounding entire body of screen casing of gas is uniformly provided with small sieve pore
222。
As shown in Figure 1, the gas generator 10, is using the gas of a certain concentration value as the generator of fuel, thereon
It is disposed with speed probe 501, power sensor 502.
As shown in Figure 1, the controller 7, is disposed with PLC thereon, by data line 8, by pressure sensor 504, watt
This concentration sensor 503, speed probe 501, power sensor 502, liquid level sensor 506, intermediate pressure compressor 62, high pressure pressure
The electric connections such as the various electrically-controlled valves such as contracting machine 61 and air inlet electrically-controlled valve 301, low concentration gas air inlet electrically-controlled valve 302 rise
Come.
The gas flow and fluctuation of concentration Automatic adjustment method is as follows:
(1) adjustment factor: gas storage tank 108, CNG storage tank 109, LNG storage tank 106, surge tank 107, gas essence mix tank 105, watt
This slightly mixes 104 amount of capacity of tank, is determined according to adjustment factor, and adjustment factor is exactly to input in absolutely not other gas gas sources
In the case of, minimum gas total amount provided by storage tank, these gas can support 10 groups of gas generator completely to bear with rated power
The number of minutes of lotus power generation certain time length.Gas essence mixes the adjustment factor that tank 105, gas slightly mix tank 104, surge tank 107, with minute
It is set for radix, unit, the adjustment factor of gas storage tank 108, CNG storage tank 109, LNG storage tank 106, using hour as radix, unit
Setting, it is preferable that gas essence mix tank 105, gas slightly mix tank 104, surge tank 107 adjustment factor be set as 1 minute, gas store up
Tank 108, CNG storage tank 109, LNG storage tank 106 adjustment factor be set as 8 hours.
(2) flow, concentration automatic adjustment: high after controller 7 opens the electrically-controlled valves such as high concentration gas air inlet electrically-controlled valve 303
The low concentration gas 102 in high concentration gas 103, low concentration gas input pipe 202, air in concentration gas input pipe 203
Buffering gas, the storage gas in gas storage tank 108, CNG storage tank 109 in air 101, surge tank 107 in input pipe 201
In CNG, the gasification gas that is compressed through intermediate pressure compressor 62 after LNG gasification, under pressure itself effect, Cong Shangyi building ring
Section, it is automatic to spray into subsequent work link.The total amount of penetrating is determined that controller 7 is controlled by the opening size of electrically-controlled valve, the duration of unlatching
Aperture, the opening time of electrically-controlled valve processed, the aperture of electrically-controlled valve is bigger, the opening time is longer, and the total amount of penetrating is bigger, electrically-controlled valve
Aperture is smaller, the opening time is shorter, the total amount of penetrating is with regard to smaller.High concentration gas 103, low concentration gas 102, buffering watt
This, the penetrating total amount of air 101 is how many and respective high low 8 variables of original concentration, codetermined gas gaseous mixture
Total amount is how many, concentration level.Controller 7 adjusts one or more variables in this 8 variables, just has adjusted gas gaseous mixture
Flow, concentration.Controller 7 adjusts more accurate, and the flow of gas gaseous mixture, concentration are more accurate, and fluctuating range is with regard to smaller.Watt
The flow of this gaseous mixture, fluctuation of concentration amplitude are smaller, and gas generator 10 more can work normally, generate electricity, power output also
It is more steady.
(3) the automatic coarse adjustment of flow, concentration: gas slightly mixes concentration, the pressure of gas, is set and is controlled by controller 7, controller
7 acquire the flow of air 101 in air inlet duct 201 by flow sensor 505, pass through gas concentration sensor 503, flow
Sensor 505 acquires high concentration gas input pipe 203, low concentration gas input pipe 202, buffering gas and slightly mixes input pipe 204, thick
The concentration of gas, flow in mixed gas input pipe 214 acquire gas by gas concentration sensor 503, pressure sensor 504
Concentration, the pressure that gas slightly mixes gas in thick mixed tank 104 acquire gas electricity by speed probe 501, power sensor 502
Machine revolving speed, realtime power, controller 7 calculate according to 10 groups of above-mentioned parameter, gas generator parameters and to adjust air inlet automatically controlled
Valve 301, low concentration gas air inlet electrically-controlled valve 302, high concentration gas air inlet electrically-controlled valve 303, buffering gas to thick mixed tank electrically-controlled valve
306 opening time, aperture, after electrically-controlled valve is opened, high concentration gas 103, low concentration watt in high concentration gas input pipe 203
The air 101 in low concentration gas 102, air inlet duct 201, the buffering gas in surge tank 107 in this input pipe 202,
It under pressure itself effect, sprays into corresponding blind screen casing, the sieve pore 222 of blind screen casing entire body arrangement is equal by gas, air 101
Gas is sprayed into evenly and slightly mixes each position of tank 104, and gas air-flow, 101 air-flow of air meet near sieve pore 222, automatic, uniform
Ground is mixed into a certain concentration, the gas of certain pressure slightly mixes gas.Sieve pore 222 is distributed more uniform, gas air-flow, air in tank body
101 stream intertextures are closer, and concentration, the pressure that gas slightly mixes gas are more accurate.
Controller 7 does not stop to adjust aperture, the opening time of above-mentioned electrically-controlled valve, and gas slightly mixes the concentration, pressure, fluctuation width of gas
Degree just constantly approaches and is finally reached setting value, and gas slightly mixes concentration, flow, the fluctuating range of gas, just reached setting value, watt
This thick mixed completion.
Gas slightly mixes the concentration of gas, flow allows to have biggish fluctuation, it is preferable that fluctuating range is less than 5%.
(4) the automatic accurate adjustment of flow, concentration: gas essence mixes concentration, the pressure of gas, is set and is controlled by controller 7, controller
7 by gas concentration sensor 503, flow sensor 505 acquire gas in thick mixed gas input pipe 214 slightly mix gas concentration,
Flow, by gas concentration sensor 503,505 acquisition buffer gas essence of flow sensor mix input pipe 205 in gas it is dense
Degree, flow acquire gas essence by gas concentration sensor 503, pressure sensor 504 and mix the dense of the mixed gas of gas essence in tank 105
Degree, pressure acquire gas generator revolving speed, realtime power by speed probe 501, power sensor 502, and controller 7
According to 10 groups of above-mentioned parameter, gas generator parameters, calculate and adjust buffering gas to essence mix tank electrically-controlled valve 305 opening time,
Aperture, after electrically-controlled valve is opened, the buffering gas in surge tank 107 sprays into the buffering blind screen casing of gas under pressure itself effect
In 219, gas slightly mix gas pressure itself, gas generator 10 suction under, be inhaled into the slightly mixed blind screen casing 220 of gas,
Buffering gas, gas are slightly mixed gas and equably spray into the mixed each position of tank 105 of gas essence by the sieve pore 222 of blind screen casing entire body arrangement,
Buffering gas air-flow, gas slightly mix gas air-flow and meet near sieve pore 222, automatically, are equably mixed into a certain concentration, a level pressure
The gas essence of power mixes gas.Sieve pore 222 be distributed in tank body it is more uniform, the thick mixed air-flow of gas, buffering gas air-flow interweave it is closer,
Concentration, the pressure that gas essence mixes gas are more accurate.
Controller 7 does not stop to adjust aperture, the opening time of above-mentioned electrically-controlled valve, and gas essence mixes the concentration, pressure, fluctuation width of gas
Degree just constantly approaches and is finally reached setting value, and gas essence mixes concentration, flow, the fluctuating range of gas, just reached setting value, watt
This essence is mixed to be completed.
Gas essence mixes the concentration of gas, flow only allows lesser fluctuation, it is preferable that fluctuating range is less than 1%.
(5) gas stores: in gas flow, concentration coarse tuning process, controller 7 calculates the consumption of high concentration gas 103
Endless, controller 7 adjusts storage 304 aperture of gas air inlet electrically-controlled valve, opening time, starts high pressure compressor 61, high concentration watt
This 103 penetrating high pressure compressor 61 compresses certain multiple, it is preferable that after 250 times of compression, is stored in gas storage tank 108.If
Gas concentration sensor 503 detects that 103 concentration of high concentration gas is more than 30%, and controller 7 instructs directly compression storage, if
Gas concentration sensor 503 detects 103 concentration of high concentration gas lower than 30%, and controller 7 calculates and adjusts CNG and stores up to gas
Tank electrically-controlled valve 307, LNG to 308 opening time of gas storage tank electrically-controlled valve, aperture, high concentration gas 103, CNG, LNG meet mixing
Afterwards, concentration is promoted to 30% or more, and recompression stores.
(6) surge tank 107 is inflated: 107 pressure sensor of surge tank, 504 acquisition buffer tank 107 storage gas pressure simultaneously passes
Controller 7 is passed, after surge tank 107, which stores gas pressure, drops to setting value, controller 7 is calculated, and adjusts storage watt first
This arrives 310 opening time of surge tank electrically-controlled valve, aperture, and under pressure itself effect, a certain amount of storage gas sprays into surge tank
107, storage gas such as not enough uses, then adjusts CNG to 309 opening time of surge tank electrically-controlled valve, aperture, acts in pressure itself
Under, a certain amount of CNG sprays into surge tank 107, and CNG is such as not enough used, then adjusts LNG output 312 opening time of electrically-controlled valve, opens
It spends, the compressed petroleum gas in LNG storage tank 106 flows into gasifier 9 and gasify under self gravitation effect, and intermediate pressure compressor 62 starts, will
After the pressurization of LNG gasification gas, LNG is opened to surge tank electrically-controlled valve 311, a certain amount of LNG gasification gas sprays into surge tank 107.
After the storage gas pressure in surge tank 107 reaches setting value, controller 7 stops inflation, and the inflation of surge tank 107 is completed.
(7) CNG is supplemented: 109 pressure sensor 504 of CNG storage tank acquisition CNG pressure simultaneously passes to controller 7, when CNG is pressed
After power drops to setting value, controller 7 is alarmed, and is reminded from outside and is purchased CNG, through CNG aerating mouth 402, throttle valve 401, injection
CNG storage tank 109, CNG pressure reach setting value, and CNG supplement is completed.
(8) LNG is supplemented: 106 liquid level sensor 506 of LNG storage tank acquisition LNG liquid level simultaneously passes to controller 7, when LNG liquid
After position drops to setting height, controller 7 is alarmed, and is reminded from outside and is purchased LNG, through LNG liquid addition mouth 403, throttle valve 401, note
Enter LNG storage tank 106, LNG liquid level is more than setting height, and LNG supplement is completed.
(9) gas consumes priority: gas being arranged in controller 7 and consumes priority, the first priority: low concentration gas
102, the second priority: high concentration gas 103, third priority: storage gas, the 4th priority: CNG；5th priority:
LNG.4th priority, the 5th priority can select one of them, can also select simultaneously according to gas acquisition cost, convenience degree
It takes, also commutative order.First priority preferentially consumes, and the first priority gas not enough consumes, then consumes the second priority
Gas, and so on.
Although embodiment of the present invention has been disclosed as above, it is not limited to listed utilization in specification and embodiments,
It can be adapted for various occasions and field of the invention completely and is easily implemented for those skilled in the art
In addition modification, without departing from the general concept defined in the claims and the equivalent scope, the present invention is not limited to specific
Details and legend shown and described herein, the above embodiments are only the preferred technical solution of the present invention, and are not construed as pair
In the technical solution that limitation of the invention, protection scope of the present invention should be recorded with claim, recorded including claim
Any modification, equivalent substitution and improvement scheme of technical characteristic is protection scope in technical solution, also in protection scope of the present invention
Within.
Claims (10)
1. the gas electricity unit and adjusting method of flow and fluctuation of concentration automatic adjustment characterized by comprising gas storage
Tank, CNG storage tank, LNG storage tank, surge tank, gas essence mix tank, gas and slightly mix tank, controller, gas generator, gasifier, high pressure
The equipment such as compressor, intermediate pressure compressor, flow sensor, pressure sensor, concentration sensor, liquid level sensor, air inlet
The electrically-controlled valves such as electrically-controlled valve, low concentration gas air inlet electrically-controlled valve, high concentration gas air inlet electrically-controlled valve, air inlet duct, high concentration watt
This input pipe, low concentration gas input pipe, buffering gas slightly mix the gas pipelines such as input pipe, and by CNG, LNG, high concentration watt
This, low concentration gas, air be mixed into flow, fluctuation of concentration amplitude be no more than setting value flow and concentration regulating method, institute
The LNG storage tank stated, CNG storage tank, gas storage tank are connected by gas tube with surge tank, the high concentration gas input pipe
It is connected with gas storage tank, the LNG storage tank, CNG storage tank are connected by gas tube with gas storage tank, and described is highly concentrated
Degree gas input pipe, low concentration gas input pipe, air inlet duct and gas slightly mix tank and are connected, the gas slightly mix tank,
Surge tank mixes tank with gas essence by gas tube and is connected, and the gas essence mixes tank and passes through gas tube and gas generator
It is connected.
2. the gas electricity unit and adjusting method of flow according to claim 1 and fluctuation of concentration automatic adjustment, special
Sign is that the gas storage tank is disposed with pressure sensor, gas concentration sensor thereon, inputs by high concentration gas
Pipe, storage gas input pipe, high pressure compressor, be connected with coal mine high concentration gas drainage system, by storage gas to delay
Tank electrically-controlled valve, storage gas efferent duct are rushed, is connected with surge tank, is stored up by CNG to gas storage tank efferent duct, CNG to gas
Tank electrically-controlled valve, storage gas input pipe, high pressure compressor, be connected with CNG storage tank, by LNG to gas storage tank electrically-controlled valve,
LNG gasification gas is to gas storage tank efferent duct, intermediate pressure compressor, LNG gasification gas efferent duct, gasifier, LNG efferent duct, LNG
Electrically-controlled valve is exported, is connected with LNG storage tank.
3. the gas electricity unit and adjusting method of flow according to claim 1 and fluctuation of concentration automatic adjustment, special
Sign is that the CNG storage tank is disposed with pressure sensor, gas concentration sensor, CNG aerating mouth, throttle valve thereon, leads to
CNG is crossed to surge tank electrically-controlled valve, CNG to surge tank efferent duct, is connected with surge tank, by CNG to gas storage tank efferent duct,
CNG is connected to gas storage tank electrically-controlled valve with gas storage tank.
4. the gas electricity unit and adjusting method of flow according to claim 1 and fluctuation of concentration automatic adjustment, special
Sign is that the LNG storage tank is disposed with liquid level sensor, LNG liquid addition mouth, throttle valve thereon, by LNG export electrically-controlled valve,
LNG efferent duct, gasifier, intermediate pressure compressor, LNG gasification gas to surge tank efferent duct, LNG to surge tank electrically-controlled valve are and slow
It rushes tank to be connected, electrically-controlled valve, LNG efferent duct, gasifier, intermediate pressure compressor, LNG gasification gas to gas is exported by LNG and stored up
Tank efferent duct, storage gas input pipe, high pressure compressor, are connected with gas storage tank.
5. the gas electricity unit and adjusting method of flow according to claim 1 and fluctuation of concentration automatic adjustment, special
Sign is that the surge tank is disposed with pressure sensor, gas concentration sensor thereon, passes through buffering gas to thick mixed tank
Electrically-controlled valve, buffering gas slightly mix input pipe, and tank is slightly mixed with gas and is connected, and pass through buffering gas to the mixed tank electrically-controlled valve of essence, buffering
Gas essence mixes input pipe, mixes tank with gas essence and is connected, by storing gas efferent duct, storage gas to surge tank electrically-controlled valve,
It is connected with gas storage tank, by CNG to surge tank electrically-controlled valve, CNG to surge tank efferent duct, is connected with CNG storage tank, passes through
LNG to surge tank electrically-controlled valve, LNG gasification gas to surge tank efferent duct, intermediate pressure compressor, LNG gasification gas efferent duct, gasification
Device, LNG efferent duct, LNG export electrically-controlled valve, are connected with LNG storage tank, pass through storage gas efferent duct, storage gas to buffering
Tank electrically-controlled valve is connected with gas storage tank.
6. the gas electricity unit and adjusting method of flow according to claim 1 and fluctuation of concentration automatic adjustment, special
Sign is that the gas slightly mixes tank, is disposed with pressure sensor, gas concentration sensor thereon, is disposed with high concentration in tank
The blind screen casing of gas, the blind screen casing of low concentration gas, the blind screen casing of air, the buffering blind screen casing of gas, above-mentioned blind screen casing slightly mix tank with gas
Central axis is axis, and axial symmetry distribution, slightly mixed input pipe communicates the buffering blind screen casing of gas with buffering gas, the blind screen casing of high concentration gas
It is communicated with high concentration gas input pipe, the blind screen casing of low concentration gas is communicated with low concentration gas input pipe, the blind screen casing of air and sky
Gas input pipe communicates, and gas slightly mixes tank by slightly mixing gas input pipe, mixes tank with gas essence and is connected.
7. the gas electricity unit and adjusting method of flow according to claim 1 and fluctuation of concentration automatic adjustment, special
Sign is that the gas essence mixes tank, is disposed with pressure sensor, gas concentration sensor thereon, and thick mixed watt is disposed in tank
This blind screen casing, the buffering blind screen casing of gas, the buffering blind screen casing of gas are arranged in gas essence and mix on tank central axis, slightly the mixed blind screen casing of gas
Tank central axis is mixed as axis using gas essence, axial symmetry is distributed with more, it is preferable that be distributed with 4, pass through the mixed input of buffering gas essence
It manages, buffer gas to the mixed tank electrically-controlled valve of essence, the buffering blind screen casing of gas, be connected with surge tank, by slightly mixed gas input pipe, slightly
The mixed blind screen casing of gas slightly mixes tank with gas and is connected, and electrically-controlled valve is exported by the mixed gas input pipe of essence, the mixed gas of essence, with gas
Generator is connected.
8. the gas electricity unit and adjusting method of flow according to claim 1 and fluctuation of concentration automatic adjustment, special
Sign is that the blind screen casing is enclosed in the screen casing cecum that gas slightly mixes tank, gas essence is mixed in tank and closes screen casing non-porous, outside tank
Open end opening has hole, and blind screen casing length is slightly less than tank body, high concentration gas blind screen casing, low concentration parallel with tank body central axis
The blind screen casings such as the blind screen casing of gas, the blind screen casing of air, the buffering blind screen casing of gas, the tank interior tube body towards tank body central axis side are logical
Body is uniformly provided with small sieve pore, and slightly the mixed blind screen casing tank interior tube body surrounding entire body of gas is uniformly provided with small sieve pore.
9. the gas electricity unit and adjusting method of flow according to claim 1 and fluctuation of concentration automatic adjustment, special
Sign is, the high concentration gas, low concentration gas input after the controller opens electrically-controlled valve, in high concentration gas input pipe
The air in low concentration gas, air inlet duct in pipe, the buffering gas in surge tank, the storage gas in gas storage tank,
The gasification gas compressed after CNG, LNG gasification in CNG storage tank through intermediate pressure compressor, under pressure itself effect, Cong Shangyi work
Make link, automatic to spray into subsequent work link, the total amount of penetrating is determined by the opening size of electrically-controlled valve, the duration of unlatching, is controlled
Device controls aperture, the opening time of electrically-controlled valve, and the aperture of electrically-controlled valve is bigger, the opening time is longer, and the total amount of penetrating is bigger, electricity
Control valve aperture is smaller, the opening time is shorter, the total amount of penetrating with regard to smaller, high concentration gas, low concentration gas, buffering gas,
The penetrating total amount of air is how many and low 8 variables of respective original concentration height, the total amount for having codetermined gas gaseous mixture are more
Less, concentration level, controller adjust one or more variables in this 8 variables, just have adjusted the flow, dense of gas gaseous mixture
Degree, controller do not stop to adjust aperture, the opening time of electrically-controlled valve, and concentration, pressure, the fluctuating range of gas gaseous mixture are just constantly forced
Closely and it is finally reached setting value, concentration, flow, the fluctuating range of gas gaseous mixture have just reached setting value, and controller is adjusted
More accurate, the flow of gas gaseous mixture, concentration are more accurate, and fluctuating range is with regard to smaller, flow, the fluctuation of concentration of gas gaseous mixture
Amplitude is smaller, and gas generator can more work normally, and power generation, power output are also more steady.
10. the gas electricity unit and adjusting method of flow according to claim 1 and fluctuation of concentration automatic adjustment, special
Sign is, it is endless that the controller calculates high concentration gas consumption, controller adjust storage gas air inlet electrically-controlled valve aperture,
Opening time, starts high pressure compressor, and high concentration gas sprays into high pressure compressor and compresses certain multiple, it is preferable that 250 times of compression
Afterwards, it is stored in gas storage tank, if gas concentration sensor detects that high concentration gas concentration is more than 30%, controller instruction
Directly compression storage, if gas concentration sensor detects high concentration gas concentration lower than 30%, controller is calculated and is adjusted
To gas storage tank electrically-controlled valve, LNG to gas storage tank electrically-controlled valve opening time, aperture, high concentration gas, CNG, LNG meet mixed CNG
After conjunction, concentration is promoted to 30% or more, and recompression stores.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910017443.4A CN109882318A (en) | 2019-01-08 | 2019-01-08 | The gas electricity unit and adjusting method of flow and fluctuation of concentration automatic adjustment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910017443.4A CN109882318A (en) | 2019-01-08 | 2019-01-08 | The gas electricity unit and adjusting method of flow and fluctuation of concentration automatic adjustment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109882318A true CN109882318A (en) | 2019-06-14 |
Family
ID=66925728
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| CN201910017443.4A Withdrawn CN109882318A (en) | 2019-01-08 | 2019-01-08 | The gas electricity unit and adjusting method of flow and fluctuation of concentration automatic adjustment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114109546A (en) * | 2021-12-10 | 2022-03-01 | 中煤能源研究院有限责任公司 | Compressed air energy storage and coal bed gas utilization system and method based on abandoned mine |
-
2019
- 2019-01-08 CN CN201910017443.4A patent/CN109882318A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114109546A (en) * | 2021-12-10 | 2022-03-01 | 中煤能源研究院有限责任公司 | Compressed air energy storage and coal bed gas utilization system and method based on abandoned mine |
| CN114109546B (en) * | 2021-12-10 | 2024-04-12 | 中煤能源研究院有限责任公司 | Compressed air energy storage and coal seam gas utilization system and method based on abandoned mine |
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Application publication date: 20190614 |
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