CN201255300Y - Gas supply apparatus for liquefaction coalbed gas - Google Patents
Gas supply apparatus for liquefaction coalbed gas Download PDFInfo
- Publication number
- CN201255300Y CN201255300Y CNU2008201256072U CN200820125607U CN201255300Y CN 201255300 Y CN201255300 Y CN 201255300Y CN U2008201256072 U CNU2008201256072 U CN U2008201256072U CN 200820125607 U CN200820125607 U CN 200820125607U CN 201255300 Y CN201255300 Y CN 201255300Y
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- gas
- coal
- seam gas
- air
- air cylinder
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Abstract
The utility model discloses a liquefied coal-bed gas-supplying system, which comprises gas storage bottles, a temperature controller, a heat exchanger, a pressure regulator and a gas dispenser. The liquefied coal-bed gas-supplying system has the following characteristics: the gas storage bottles are dedicated liquefied coal-bed gas storage bottles, and gasifiers are also arranged between the gas storage bottles and the temperature controller. Since the dedicated liquefied coal-bed gas storage bottles are employed and the gasifiers are also arranged between the gas storage bottles and the temperature controller, safety is good, and the cost is low.
Description
Technical field
The utility model relates to a kind of air feeder of the coal-seam gas that liquefies.
Background technique
The english abbreviation CMB of coal-seam gas (coal-Bed methane), the english abbreviation (LCBM) of liquefaction coal-seam gas (Liqucfedcoal-Bed methane), composition comprises: methane 98.9750%, nitrogen 0.9839%, propane 0.0254%, carbon dioxide 0.0040%, ethane 0.0091%, the above heavy hydrocarbon 0.0026% of butane, the about 8482kcal/NM of lower calorific value
3The product advantage of liquefaction coal-seam gas (LCBM): 1, every use 1 ten thousand stere coal-seam gas can save energy and reduces discharging 5.6 tons of CO
22, high-quality, cleaning, antiknock quality are good, and burning fully, discharging is pollution-free, and user cost is low; 3, make things convenient for vehicle, ship transportation, quick, economic, reliable; 4, liquefaction back volume-diminished is original 1/625, efficiency of storage height, takes up an area of fewly, and adaptability is strong; 5, safe, there is leakage promptly to volatilize voluntarily slightly and disperses, be difficult for causing accident; 6, than conventional oil natural gas more clean, more efficient, safer, the green novel energy source that price is more cheap.
The U.S. is the country that develops coal-seam gas in the world the earliest, starts from the seventies.China just begins coal-seam gas is developed as second resource of coal in the nineties, and domestic first has the Qinshui coalfield of the coal-seam gas project of exploitation value and scale in Shanxi.Develop the coal-seam gas of abundant cleaning energetically, can improve the energy resource structure of optimizing national regional area and middle samll cities and towns, alleviate the combustion gas imbalance between supply and demand, alleviate pollution of atmosphere, obtain good economy, society and environmental benefit.
At present, what generally adopt is compression coal-seam gas (compresne Coal-Bed methane), the air supply system of english abbreviation (CCBM).Promptly from coal-seam gas compression factory can ultrahigh pressure (22-25Mpa) compression coal-seam gas, volume-diminished is original 1/250, be transported to surrounding city by tube bank gas storage sled car, large-scale decompression supply station is again with high pressure coal-seam gas process second depressurized, be transferred to 0.4Mpa by 22-25Mpa, add smellyly, input is pressed extensive network in the avenue, enters the residential quarter voltage regulating station at last, after transferring to minute-pressure, could send into huge numbers of families by the garden pipeline and use again.Compression coal-seam gas air supply system uses shortcoming to be: ultrahigh pressure transportation gaseous state coal-seam gas, and the Security extreme difference, transportation economics radius little (apart from source of the gas ground, 100 kilometers in), it is little that separate unit is prized car fortune volume, maximum freight volume (4000NM
2) the cost of transportation height, the fire-fighting safety check requires strict especially.
Summary of the invention
For overcoming the defective of prior art, the technical problems to be solved in the utility model has provided the air feeder of a kind of safety, liquefaction coal-seam gas that cost is low.
The technical solution of the utility model is: the air feeder of this liquefaction coal-seam gas comprises air cylinder, temp controller, heat exchanger, pressure governor, the filling machine that links to each other successively, it is characterized in that: air cylinder is the special-purpose air cylinder of liquefaction coal-seam gas, also is provided with vaporizer between air cylinder and temp controller.
Owing to adopted the special-purpose air cylinder of liquefaction coal-seam gas, between air cylinder and temp controller, also be provided with vaporizer, so Security is good, cost is low.
Description of drawings
Fig. 1 is a structural drawing of the present utility model.
Embodiment
With reference to the accompanying drawings, will describe embodiment of the present utility model in detail.
Fig. 1 is a structural drawing of the present utility model.As can be seen from the figure, the air feeder of this liquefaction coal-seam gas comprises air cylinder 2, temp controller 5, heat exchanger 6, pressure governor 8, the filling machine 13 that links to each other successively, air cylinder 2 is the special-purpose air cylinders of liquefaction coal-seam gas, also is provided with vaporizer 4 between air cylinder 2 and temp controller 5.Air cylinder 2 is divided into vertical (175 liters) and horizontal (410 liters), and as shown in the figure, the air cylinder of present embodiment comprises and uses bottle group and standby bottle to organize two groups of air cylinders.Two vaporizers 4 are air-heating type gasifier, and one opens one is equipped with, but does not need extra power to gasify with regard to natural temperature with air.The coal-seam gas decompression time will absorb a large amount of heats, heat exchanger 6 with the coal-seam gas heating in case pipeline, valve frosting ice are stifled.The mesolow coal-seam gas was adjusted to the spendable minute-pressure state of user coal-seam gas in pressure governor 8 will be managed.Filling machine 13 is installed in by the supply station, and the sharp gas using station source of the gas of refueling system can be user's 14 aeratings, and the sharp gas using station source of the gas of filling machine can be the sub-district or the gas combustion automobile user of unit aerating is emergent.
Preferably, between heat exchanger 6 and pressure governor 8, be provided with filter 7, be used for filtering the granule foreign of coal-seam gas and pipeline.
Be easy to found odorization machine 10, alarm 11, control gear 12 when preferably, the calculating correction values machine 9, coal-seam gas that is provided with coal-seam gas flow in the computer tube between pressure governor 8 and filling machine 13 successively leaks.In vaporizing station, observing and controlling instrument, when recording coal-seam gas concentration above specified value, air bells exhauster be reported to the police and be opened automatically to alarm 11 can, cuts off air inlet, when reaching specified value in standing, can close air bells exhauster automatically and recover air feed.Control gear 12 demonstrates fully the superior control function of PLC according to the unmanned design, and the man-machine interface display screen is short and sweet.
Preferably, between air cylinder 2 and the vaporizer 4, between vaporizer 4 and the heat exchanger 6, be provided with pressure gauge 3 between alarm 11 and the filling machine 13.
In addition, as shown in the figure, some valves are installed on pipeline.Safety relief valve is installed in before the air inlet bottle and after the gasification, when pressure raises for some reason, and when surpassing setting value, automatic vent.Butterfly valve seal is good, is used for pilot line conveying gas switch.Safety cut-off valve: when pressure governor outlet line system hinders and during pressure surge, signal feed back is given control system for some reason, can cut off air inlet automatically, stop air feed.
The manufacturer of each assembly that the utility model adopted and model are: NA42F-25 Safety relief valve, DQ421F-25 cut-off valve, J41N-25 butterfly valve, Shijiazhuang City gas valve factory; XL-55 type LCBM air cylinder, south, Guangdong special gas company; YN-60 type pressure gauge, WK-Z type temp controller, East Asia, Hangzhou instrument company; GH type LCBM vaporizer, Liaoyang Australia profound hypothermia equipment company; The HR-1 type heat exchanger, GL type filter, GTX type pressure governor, ZGC07-2 type odorization machine, Shijiazhuang good speed gas-fired equipment company; PTZ-BOX calculating correction values machine, moral is heard metering equipment (Shanghai) company; The QJ-D-992 alarm, east, Tianjin Li Jingbaoqichang; The PLC control gear, the new smelting electrical engineering in Nanjing company; The Phill filling machine, Beijing Fu Meike company; Instrument, Stainless Steel Flexible Hose and accessory, Asia, Jiangsu gas apparatus company.
Working principle of the present utility model: the liquefy steel cylinder of coal-seam gas (LCBM) of splendid attire is transported in the station, connect the gas, liquid Stainless Steel Flexible Hose, give the steel cylinder supercharging with the booster that steel cylinder carries, utilize pressure reduction that the LCBM in the steel cylinder is sent into external vaporizer, pressure governor is passed through in liquid coal-seam gas, gasification and heating in vaporizer then, pressure regulation is to required pressure, through the metering, add smelly after, be sent to the user.Be provided with in vaporizing station and use and standby two groups of steel cylinders, and quantity is identical, when the LCBM steel cylinder liquid level of using side drops to the regulation liquid level, automatically switch to standby bottle group one side, the empty steel cylinder that switches should in time be bottled standby.
Take following measure to guarantee the security of operation of equipment and pipeline in the supply station.
1., between two cut-off valves of liquid pipe and between each vaporizer turnover valve safety valve being housed, to prevent the liquid gasification.
2., to producing equipment and the pipeline that static can cause fire peril, all take the electrostatic grounding measure.
3., between the bottle group, may produce the zone that coal-seam gas reveals between gasification combustable gas concentration alarm and automatic controller are set.
4., being provided with coal-seam gas temperature lower bound warning device on the general export pipe of vaporizer can in time report to the police.
5., the afterburning 0.3-0.6mpa of design pressure 1.6mpa, import, outlet pressure 0.07-0.25mpa, outlet temperature are lower than ambient temperature 5-10 ℃.
Advantage of the present utility model:
1, applied widely, new rural area, samll cities and towns, city dweller residential quarter, commercial public good fortune user and small-sized Industrial user etc.
2, LCBM supply station is changeablely built a station according to user's usefulness gas scale, and floor space is little, builds Cycle is short, invests little.
3, supply station instrument, instrument, equipment, be designed to monoblock type and be installed on the skid seat, be easy to resettlement And movement, the reasonable in design compactness, it is convenient, simple to operate to install, the automaticity height.
4, in the supply station, unmanned need not water power, and energy consumption operating cost is extremely low.
5, the application of liquefaction coal-seam gas (LCBM) can be extended to terminal from (LCBM) substation again, improve the substation usage ratio of equipment, increase the consumption of LCBM, enlarge the scale of bottle group gas supply conduit, save gas cost.
6, liquefaction coal-seam gas supply station, whole operation procedure is at low temperature, and normal pressure is contract coal-seam gas and fuel oil of operation specific pressure down, and fire coal is safer, and more environmental protection is more energy-conservation, is the green clean energy resource that development potentiality is arranged 21 century most, and market prospects are wide.
Claims (4)
1, the air feeder of liquefaction coal-seam gas, comprise the air cylinder (2), temp controller (5), heat exchanger (6), pressure governor (8), the filling machine (13) that link to each other successively, it is characterized in that: air cylinder (2) is the special-purpose air cylinder of liquefaction coal-seam gas, also is provided with vaporizer (4) between air cylinder (2) and temp controller (5).
2, the air feeder of liquefaction coal-seam gas according to claim 1 is characterized in that: be provided with filter (7) between heat exchanger (6) and pressure governor (8).
3, the air feeder of liquefaction coal-seam gas according to claim 1 is characterized in that: be provided with calculating correction values machine (9), odorization machine (10), alarm (11), control gear (12) between pressure governor (8) and filling machine (13) successively.
4, the air feeder of liquefaction coal-seam gas according to claim 3 is characterized in that: between air cylinder (2) and the vaporizer (4), between vaporizer (4) and the heat exchanger (6), be provided with pressure gauge (3) between alarm (11) and the filling machine (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201256072U CN201255300Y (en) | 2008-07-16 | 2008-07-16 | Gas supply apparatus for liquefaction coalbed gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201256072U CN201255300Y (en) | 2008-07-16 | 2008-07-16 | Gas supply apparatus for liquefaction coalbed gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201255300Y true CN201255300Y (en) | 2009-06-10 |
Family
ID=40738618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201256072U Expired - Fee Related CN201255300Y (en) | 2008-07-16 | 2008-07-16 | Gas supply apparatus for liquefaction coalbed gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201255300Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102494245A (en) * | 2011-12-06 | 2012-06-13 | 广东华南特种气体研究所有限公司 | Mobile automatic odor-adding gasifier |
| CN105840983A (en) * | 2016-06-01 | 2016-08-10 | 乐山市山鹰模具有限责任公司 | LNG skid-mounted fuel gas supply device |
-
2008
- 2008-07-16 CN CNU2008201256072U patent/CN201255300Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102494245A (en) * | 2011-12-06 | 2012-06-13 | 广东华南特种气体研究所有限公司 | Mobile automatic odor-adding gasifier |
| CN102494245B (en) * | 2011-12-06 | 2013-08-07 | 广东华南特种气体研究所有限公司 | Mobile automatic odor-adding gasifier |
| CN105840983A (en) * | 2016-06-01 | 2016-08-10 | 乐山市山鹰模具有限责任公司 | LNG skid-mounted fuel gas supply device |
| CN105840983B (en) * | 2016-06-01 | 2018-06-26 | 乐山市山鹰模具有限责任公司 | A kind of LNG skid-mounted gas feeder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090610 Termination date: 20130716 |