CN104265355A - Surplus gas automatic diffusing method for coal mine gas power station - Google Patents
Surplus gas automatic diffusing method for coal mine gas power station Download PDFInfo
- Publication number
- CN104265355A CN104265355A CN201410428611.6A CN201410428611A CN104265355A CN 104265355 A CN104265355 A CN 104265355A CN 201410428611 A CN201410428611 A CN 201410428611A CN 104265355 A CN104265355 A CN 104265355A
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- Prior art keywords
- gas
- diffusing
- diffuse
- power station
- amount
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0203—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels characterised by the type of gaseous fuel
- F02M21/0209—Hydrocarbon fuels, e.g. methane or acetylene
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Abstract
The invention discloses a surplus gas automatic diffusing method for a coal mine gas power station. The method includes: using a surplus gas automatic diffusing control device to face fluctuant extraction total amount, and allowing the gas supply amount of the power station to be equal to the required amount of the power station by the controllable diffusing amount. The surplus gas automatic diffusing method has the advantages that the supply amount of the gas power station is the required amount of the power station by automatic diffusing control, stable and sufficient gas supply is achieved, and safe, stable and efficient operation of the power station and gas power generator sets are guaranteed while carbon emission is reduced, energy is saved, and environment pollution is reduced.
Description
Technical field: the present invention relates to a kind of CMM Power Generation station and to have more than needed the automatic relief method of gas.
Background technology: in recent years, under the wideling popularize of country, CMM Power Generation cause obtains huge development.The maximum harm " gas " in colliery is not only turned waste into wealth by gas electricity unit, and also greatly reducing greenhouse effect is CO
2the CH of 21 times
4discharge.Gas pumping is a complicated system engineering, and in system, the variation of any one link, all can affect extracting result, therefore the gas pumping total amount of mine is generally always in fluctuation status.But any motor all only could keep efficiently, stably by power stage under the supply of continuous, stable fuel.Therefore, in gas electricity station, the quantity of unit and rated power are with institute's steady component gassy in source of the gas for according to being equipped with, and the gas of having more than needed diffuses sky or for other purposes such as purifying.
At present, the valve that diffuses at China's gas electricity station is substantially all hand-guided, and away from control room, in the face of the source of the gas of frequent fluctuation, power station staff have to run around all the time wears him out, and is substantially all to be adjusted by valve after what a diffuses position according to situation at that time, just no longer changes; Total amount is caused to increase namely relative to valve adjustment constantly, because the amount of diffusing is inadequate, unit driving or overburden; When total amount reduces, because diffusing still, the power of the assembling unit declines to a great extent.
Summary of the invention: the present invention overcomes prior art drawback, when providing a kind of source of the gas to fluctuate, the automatic relief method that guarantee gas electricity station source of the gas is stablized, gas is had more than needed at enough a kind of CMM Power Generation stations supplying use.
The technical scheme that the present invention is adopted for achieving the above object is: it adopts gas automatic relief control device more than needed, and in the face of the extraction total amount of fluctuation, variation, the control amount of diffusing, make the gas quantity delivered in power station equal the gas demand in power station; Namely
W-U＝V＝X (1)
W, U, V, X represent total amount, the amount of diffusing, power station quantity delivered, power station demand respectively;
X＝∑Vi (2)
Vi unit i demand.
The i.e. data that provide according to total flow sensor 5, gas concentration sensor 2 of controller 1, calculate extraction total amount, again according to the demand in power station, calculate the amount of diffusing, thereafter, sending regulating command to diffusing control valve 12, resistance control valve 14, diffusing control valve 12, resistance control valve 14 regulates aperture according to the instruction of controller 1, make the actual amount of diffusing equal the calculating amount of diffusing, then power station quantity delivered equals power station demand;
The fuel of unit is the gas in source of the gas, the i.e. scale of gas, therefore, total amount, power station demand, power station quantity delivered, the amount of diffusing all must be summed up as scale, but when controlling, this tittle is substantially all occur with the form of flow, and their scale and the corresponding relation of respective flow are;
The amount of diffusing=diffuse flow × concentration (3)
Total amount=total flow × concentration (4)
Power station demand=power station demand volume × concentration (5)
Gas concentration sensor 2 is installed in gas delivery main road, total flow sensor 5, diffuse on introduction pipe 10 install diffuse flow transmitter 11, diffuse control valve 12, in the position after a while, junction of diffusing introduction pipe 10 and gas output channel 9, resistance control valve door 14 is installed, diffuse flow transmitter 11, diffuse control valve 12, resistance control valve door 14 is connected with controller 1, gas demand is also sent to controller 1 by generator set controller 17 by unit 1 ~ unit N18 respectively, controller 1 is by total flow, diffuse flow, after demand volume converts according to formula (1) ~ (45), change the aperture of diffusing control valve 12 and resistance control valve 14, make
The actual amount of diffusing=calculating amount of diffusing
Then
The demand in the quantity delivered=power station in power station.
The invention has the beneficial effects as follows: control owing to adopting automatic relief, the quantity delivered at gas electricity station is made to be exactly the demand in power station, stable, enough source of the gas supply, both power station and gas electricity unit safety, steady, Effec-tive Function had been ensure that, also carbon emission is greatly reduced, save the energy, decrease environment pollution.
Accompanying drawing illustrates: Fig. 1 is structural representation of the present invention
Fig. 2 is a kind of structural representation of the present invention
Fig. 3 is another kind of structural representation of the present invention
Detailed description of the invention: embodiment 1: as shown in Figure 1 and Figure 2, it adopts gas automatic relief control device more than needed, in the face of the extraction total amount of fluctuation, control the amount of diffusing, the gas quantity delivered in power station and total amount are deducted gas demand and ∑ unit i demand that the amount of diffusing equals power station; Namely
W-U＝V＝X (1)
W, U, V, X represent total amount, the amount of diffusing, power station quantity delivered, power station demand respectively;
X＝∑Vi (2)
Vi unit i demand.
The i.e. data that provide according to total flow sensor 5, gas concentration sensor 2 of controller 1, calculate extraction total amount, again according to the demand in power station, calculate the amount of diffusing, thereafter, sending regulating command to diffusing control valve 12, resistance control valve 14, diffusing control valve 12, resistance control valve 14 regulates aperture according to the instruction of controller 1, make the actual amount of diffusing equal the calculating amount of diffusing, then power station quantity delivered equals power station demand;
The fuel of unit is the gas in source of the gas, the i.e. scale of gas, therefore, total amount, power station demand, power station quantity delivered, the amount of diffusing all must be summed up as scale, but when controlling, this tittle is substantially all occur with the form of flow, and their scale and the corresponding relation of respective flow are;
The amount of diffusing=diffuse flow × concentration (3)
Total amount=total flow × concentration (4)
Power station demand=power station demand volume × concentration (5)
Gas concentration sensor 2 is installed in gas delivery main road, total flow sensor 5, diffuse on introduction pipe 10 install diffuse flow transmitter 11, diffuse control valve 12, in the position after a while, junction of diffusing introduction pipe 10 and gas output channel 9, resistance control valve door 14 is installed, diffuse flow transmitter 11, diffuse control valve 12, resistance control valve door 14 is connected with controller 1, gas demand is also sent to controller 1 by generator set controller 17 by unit 1 ~ unit N18 respectively, controller 1 is by total flow, diffuse flow, after demand volume converts according to formula (1) ~ (5), change the aperture of diffusing control valve 12 and resistance control valve 14, make
The actual amount of diffusing=calculating amount of diffusing
Then
The demand in the quantity delivered=power station in power station.
Embodiment 2: as shown in Figure 1, the gas concentration sensor 2 of described gas automatic relief control device more than needed, total flow sensor 5 is arranged on gas inlet pipe road 3, and be connected with controller 1, gas inlet pipe road 3 is connected with drainage pump inlet end 7, gas output channel 9 is connected with drainage pump outlet side 8, diffuse introduction pipe 10 one end to be connected with gas output channel 9, the other end is through diffusing flow transmitter 11, diffuse control valve 12 to be connected with diffuse channel 13, diffuse flow transmitter 11, diffuse control valve 12 to be arranged on and to diffuse on introduction pipe 10, and be connected with controller 1, resistance control valve 14 is arranged on gas output channel 9, and be connected with controller 1, unit 1 ~ unit N18 is connected with a point gas house steward 15 through point gas branch pipe 16, gas house steward 15 is divided to be connected with gas output channel 9 through resistance control valve 14, the controller 17 of each unit is direct or be connected with controller 1 by data/address bus, drainage pump 6 arranges on drainage pump inlet end 7 and drainage pump outlet side 8 respectively, motor 4 is arranged on one end of drainage pump 6.
Embodiment 3: as shown in Figure 1 and Figure 2, described diffuses flow transmitter 11 and diffuses control valve 12 also commutative position, but installation site shown in Fig. 1 is best position.
Embodiment 4: as shown in Figure 1, Figure 3, described gas concentration sensor 2, total flow sensor 5 also can be arranged on gas output channel 9, but are arranged on gas inlet pipe road 3 as best position.
Embodiment 5: as shown in Figure 1 and Figure 2, described diffuse introduction pipe 10 with diffuse total pipeline 13 be connected with other mounting means time:
W-U＝V
Equation is set up.
Embodiment 6: as shown in Figure 1, unit 1 ~ unit N18 includes generator set controller 17.
Embodiment 7: as shown in Figure 1 and Figure 2, when extraction total amount is less than, equals the gas demand in power station, diffusing control valve 12 aperture is zero, and the amount of diffusing is zero, and the gas quantity delivered in power station equals total amount.
Embodiment 8: as shown in Figure 1 and Figure 2, acting as of its resistance control valve door 14: generally, diffuse fairlead 10 higher with the pressure of gas output channel 9 house steward junction C point, the aperture of control and regulation valve 12, just the gas that need diffuse can be discharged, now, resistance control valve door 14 is in full-gear.But when the pressure of C point is lower, there will be the very large the phenomenon but gas that need diffuse can not discharged of control valve 12 aperture.Now, controller 1 sends instruction, and resistance control valve door 14 reduces aperture, and after C point pressure is raised, the aperture of control and regulation valve 12, can guarantee the gas needing to diffuse to discharge.
Embodiment 9: as shown in Figure 1, Figure 2, Figure 3 shows, described diffuses control valve 12, resistance control valve 14 according to the instruction of controller 1, can control in the mode changing aperture the amount of diffusing.
Embodiment 10: as shown in Figure 1, Figure 2, Figure 3 shows, all gas parameter must be converted under standard state.
Embodiment 11: as shown in Figure 1, Figure 2, Figure 3 shows, described total flow sensor 5, diffuses flow transmitter 11 for having the combined-flow quantity sensor of temperature, pressure compensate function, or the sensor group be made up of flow, pressure, temperature pick up;
When total amount is less than or equal to demand, the amount of diffusing is zero.
Total amount; The abbreviation of extraction total amount.
Claims (7)
1. have more than needed a gas automatic relief method in CMM Power Generation station, it is characterized in that adopting gas automatic relief control device more than needed, in the face of the extraction total amount of fluctuation, controls the amount of diffusing, make the gas quantity delivered in power station equal the gas demand in power station; Namely
W-U＝V＝X (1)
W, U, V, X represent total amount, the amount of diffusing, power station quantity delivered, power station demand respectively;
X＝∑Vi (2)
Vi unit i demand.
2. have more than needed gas automatic relief method in a kind of CMM Power Generation station according to claim 1, it is characterized in that the gas concentration sensor (2) of described gas automatic relief control device more than needed, total flow sensor (5) is arranged on gas inlet pipe road (3), and be connected with controller (1), gas inlet pipe road (3) is connected with drainage pump inlet end (7), gas output channel (9) is connected with drainage pump outlet side (8), diffuse introduction pipe (10) one end to be connected with gas output channel (9), the other end is through diffusing flow transmitter (11), diffuse control valve (12) to be connected with diffuse channel (13), diffuse flow transmitter (11), diffuse control valve (12) to be arranged on and to diffuse on introduction pipe (10), and be connected with controller (1), resistance control valve (14) is arranged on gas output channel (9), and be connected with controller (1), unit 1 ~ unit N (18) is connected with a point gas house steward (15) through point gas branch pipe (16), gas house steward (15) is divided to be connected with gas output channel (9) through resistance control valve (14), the controller (17) of each unit is direct or be connected with controller (1) by data/address bus, drainage pump (6) arranges on drainage pump inlet end (7) and drainage pump outlet side (8) respectively, motor (4) is arranged on one end of drainage pump (6).
3. have more than needed gas automatic relief method in a kind of CMM Power Generation station according to claim 2, it is characterized in that described diffusing control valve (12), resistance control valve (14) according to the instruction of controller (1), control in the mode changing aperture the amount of diffusing.
4. have more than needed gas automatic relief method in a kind of CMM Power Generation station according to claim 1 and 2, it is characterized in that described diffuse introduction pipe (10) with diffuse total pipeline (13) be connected with other mounting means time:
W-U＝V
Equation is set up.
5. have more than needed gas automatic relief method in a kind of CMM Power Generation station according to claim 1, it is characterized in that all gas parameter must conversion under standard state.
6. have more than needed gas automatic relief method in a kind of CMM Power Generation station according to claim 1 and 2, it is characterized in that described total flow sensor (5), diffusing flow transmitter (1) for having the combined-flow quantity sensor of temperature, pressure compensate function, or the sensor group be made up of flow, pressure, temperature pick up.
7. have more than needed gas automatic relief method in a kind of CMM Power Generation station according to claim 1 and 2, and it is characterized in that when total amount is less than or equal to demand, the amount of diffusing is zero.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410428611.6A CN104265355B (en) | 2014-08-22 | 2014-08-22 | A kind of CMM Power Generation station to have more than needed gas automatic relief method |
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|---|---|---|---|
| CN201410428611.6A CN104265355B (en) | 2014-08-22 | 2014-08-22 | A kind of CMM Power Generation station to have more than needed gas automatic relief method |
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| CN104265355A true CN104265355A (en) | 2015-01-07 |
| CN104265355B CN104265355B (en) | 2017-06-16 |
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| CN201410428611.6A Active CN104265355B (en) | 2014-08-22 | 2014-08-22 | A kind of CMM Power Generation station to have more than needed gas automatic relief method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105098800A (en) * | 2015-09-20 | 2015-11-25 | 陕西华泰汇丰能源科技有限公司 | Ventilation air methane power generation system based on double circuits and control method thereof |
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| CN102493832A (en) * | 2011-11-16 | 2012-06-13 | 新汶矿业集团有限责任公司 | Method for safely generating power by aid of unstable gas sources |
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| CN203012481U (en) * | 2012-12-21 | 2013-06-19 | 淮南赛力威机电设备有限责任公司 | Multifunction control device of gas power generation cooling system |
| CN103291351A (en) * | 2013-05-24 | 2013-09-11 | 中国矿业大学 | Mining-area distributed-type coal-mine gas extraction thermoelectric cooling poly-generation energy resource system |
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2014
- 2014-08-22 CN CN201410428611.6A patent/CN104265355B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102493832A (en) * | 2011-11-16 | 2012-06-13 | 新汶矿业集团有限责任公司 | Method for safely generating power by aid of unstable gas sources |
| CN202468042U (en) * | 2012-03-16 | 2012-10-03 | 山东绿环动力设备有限公司 | Control system of gas generating set |
| CN202811114U (en) * | 2012-05-18 | 2013-03-20 | 北京扬德环境科技有限公司 | Generator set air distribution system for mixed use of gas with high and low concentration |
| CN202732154U (en) * | 2012-06-22 | 2013-02-13 | 胡玮琳 | Coal mine gas power station pre-sensors |
| CN203012481U (en) * | 2012-12-21 | 2013-06-19 | 淮南赛力威机电设备有限责任公司 | Multifunction control device of gas power generation cooling system |
| CN103291351A (en) * | 2013-05-24 | 2013-09-11 | 中国矿业大学 | Mining-area distributed-type coal-mine gas extraction thermoelectric cooling poly-generation energy resource system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105098800A (en) * | 2015-09-20 | 2015-11-25 | 陕西华泰汇丰能源科技有限公司 | Ventilation air methane power generation system based on double circuits and control method thereof |
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| CN104265355B (en) | 2017-06-16 |
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