CN100575770C - CNG directly fills aerating technology and CNG directly fills air entraining substation - Google Patents
CNG directly fills aerating technology and CNG directly fills air entraining substation Download PDFInfo
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- CN100575770C CN100575770C CN200610081269A CN200610081269A CN100575770C CN 100575770 C CN100575770 C CN 100575770C CN 200610081269 A CN200610081269 A CN 200610081269A CN 200610081269 A CN200610081269 A CN 200610081269A CN 100575770 C CN100575770 C CN 100575770C
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Abstract
The invention discloses that a kind of CNG directly fills aerating technology and CNG directly fills air entraining substation, this CNG directly fills on aerating technology directly fills air entraining substation at this CNG the basis by directly filling control gear and by the pressure signal collecting device number is at least four caisson and gathers gas storage pressure respectively, compare respectively by directly filling the gas storage pressure of control gear again air container pressure to be filled and each caisson, in each caisson, select the minimum caisson of a pressure directly to fill caisson according to the gained comparison value, at the pressure signal collecting device as first-selection, fill order controller and sell under the effect of device of air and control the partial pressure table respectively, the switch-dividing control valve, the main switch control valve, total pressure table and total discharge meter carry out CNG by air filling gun to air container to be filled and directly fill.It is simple that CNG of the present invention directly fills the aerating process step, easy operating, and inflationtime is short, high working efficiency, this CNG directly fills air entraining substation, and is simple in structure, and construction investment is little, and energy consumption is low, the easy care maintenance.
Description
Technical field
The present invention relates to that a kind of CNG aerating technology and CNG gas station, particularly CNG directly fill aerating technology and CNG directly fills air entraining substation.
Background technique
Along with the progressively rising of the worsening shortages and the fuel price of petroleum resources, increasing Motor Vehicle brings into use compressed natural gas (CNG) to act as a fuel.At present, the air entraining substation that fills CNG for all kinds of Motor Vehicle mostly is compression type CNG air entraining substation and hydraulic type CNG air entraining substation.Compression type CNG air entraining substation is generally connected to form successively by substation trailer, discharge column, compressor, inflation sequence dish, air cylinder group, filling machine, during aerating, through discharge column compressed natural gas is delivered to inflation sequence control panel or suction port of compressor by the substation trailer, to be stored in the air cylinder group by the high, medium and low order that fills by the rock gas of compressor compresses by the inflation sequence control panel again, by filling machine gas powered vehicle is carried out aerating then.Hydraulic type CNG air entraining substation is generally connected to form successively by hydraulic pressure sled, substation trailer, filling machine, during aerating, the hydraulic pressure sled makes its maintenance add atmospheric pressure by injecting high-pressure and hydraulic oil to the substation trailer, when making substation trailer output natural gas charging, satisfy the requirement that fills that air cylinder pressure reaches 20Mpa to the aerating vehicle.Though it is comparatively general that these two kinds of gas stations use, the construction and the equipment investment of these two kinds of CNG air entraining substations are big, and the complex structure of air entraining substation causes aerating technology loaded down with trivial details, and the aerating time is long, and working efficiency is lower.In addition, not only energy consumption is big for employed compression device of traditional air entraining substation and hydraulic pressure installation, and maintenance and difficult in maintenance, has increased the cost of production of enterprise.
Summary of the invention
The object of the present invention is to provide a kind of CNG directly to fill aerating technology, its process step is simple, easy operating, and inflationtime is short, high working efficiency.
Another object of the present invention is to provide a kind of and utilizes this CNG directly to fill aerating technology directly to fill air entraining substation for the CNG of Motor Vehicle aerating, and not only simple in structure, construction investment is little, and energy consumption is low, the easy care maintenance.
The object of the present invention is achieved like this: a kind of CNG of utilization directly fills air entraining substation and directly fills aerating technology for the CNG of Motor Vehicle aerating, the container to be filled that comprises the steps: 1, determines to have at least in each caisson one pressure to be higher than air container to be filled earlier is full of pressure, by directly filling control gear by selling the container pressure to be filled that gas control system device detects air container to be filled, when air container to be filled wait that filling container pressure is full of pressure less than the container to be filled of air container to be filled the time, then carry out next step; 2, by directly filling control gear detects each caisson by the pressure signal collecting device gas storage pressure; What device of air was sold in setting directly fills lowest limit pressure reduction, by sell the gas control system of the selling device that is provided with in the device of air with described directly fill lowest limit pressure reduction and air container to be filled wait that filling the container pressure sum is input to and directly fills control gear, and compare respectively with gas storage pressure numerical value in each caisson, draw each corresponding comparison value, directly fill caisson according to that minimum container of gas storage pressure in each comparison value selection caisson as first-selection by directly filling control gear, the first-selected gas storage pressure that directly fills caisson should greater than described directly fill lowest limit pressure reduction and air container to be filled wait to fill the container pressure sum, and carry out next step; 3, monitor said first-selection respectively in real time by the pressure signal collecting device and the gas control system device of selling and directly fill the gas storage pressure of caisson and the container pressure to be filled of air container to be filled, simultaneously, connect the pipeline that said first-selection is directly filled caisson and air container to be filled by directly filling control gear by filling order controller and selling gas control system device, utilize the pressure reduction of the two directly to fill, reaching first-selection that container to be filled is full of pressure or should first-selection directly fills caisson until the container pressure to be filled of air container to be filled directly fills caisson gas storage pressure and the difference of waiting to fill container pressure and equals said when directly filling lowest limit pressure reduction, stop directly filling, and carry out next step; 4, by selling the container pressure to be filled that gas control system device detects the air container to be filled after previous step is directly filled suddenly, when its container to be filled less than air container to be filled is full of pressure, repeating step 2; When it is full of pressure more than or equal to container to be filled, then sends air container to be filled and be full of signal, and finish whole filling process to directly filling control gear.
A kind ofly utilize this CNG directly to fill aerating technology directly to fill air entraining substation for the CNG of Motor Vehicle aerating, the device of air of selling that comprises caisson and be connected with air filling gun, the number of caisson is at least four, partial pressure table and switch-dividing control valve all are installed respectively on the output tube of each caisson, each partial pressure table all links to each other with the pressure signal collecting device, each switch-dividing control valve all with fill order controller and link to each other, the main switch control valve that the gas control system of selling device is being set in the device of air on sale and is linking to each other with the gas control system device of selling respectively, total pressure table and total discharge meter, the outlet end of each switch-dividing control valve all successively with the main switch control valve, total pressure table and total discharge meter are connected, the total discharge meter links to each other with air container to be filled by air filling gun, sells gas control system device, fill order controller and pressure signal collecting device all with directly fill control gear and link to each other.
Directly filling air entraining substation at the CNG of the present invention of Urumchi Xin Jiexin the earth in October, 2005 has carried out and uses CNG of the present invention and directly fill the confirmatory experiment of aerating technology.Experiment usefulness sell that device of air adopts Chongqing tetrad production singly fill filling machine, during experiment filling machine is linked to each other with air container to be filled, directly filling caisson is common 8 tube bank high pressure tube bank trailers, initiation pressure is 22.6Mpa, the air container to be filled of experiment usefulness is a 60L vehicle CNG gas storage steel cylinder, the pressure that requires when being full of to reach is 18.5Mpa, sell device of air lowest limit pressure differential deltap P=0.1Mpa, experiment has been carried out 205 times altogether according to the aerating process step that directly fills of the present invention, wherein directly fills technological test for the CNG under the perfect condition (air container residual voltage to be filled is 0) 1-119 time; 120-250 time is that gas is sold in the actual CNG substation of simulation, has the CNG of residual voltage directly to fill technological test in the air container promptly to be filled.Test concrete data and see table 1 for details.
Table 1
In table 1:
The high pressure tube bank: the tube bank numbering that fills is finally finished in each time experiment;
Fill residual voltage: the gas storage pressure before each time experiment fills in the steel cylinder to be filled;
Fill speed: the quantity (m that on average fills rock gas in each time experimental unit time
3/ min);
6.5 seconds non-filling the time (opening machine, dead time) all arranged when adding up by the gas selling machine time that fills because of each tube bank, and for meeting the true media filling condition of technology, each time experiment fills all only calculates once non-filling the time.
Sell tolerance: fill the rock gas quantity that steel cylinder fills to waiting to test;
Filling pressure: each time experiments experiment fills steel cylinder and fills gas storage pressure when finishing;
Fill the tube bank number: the tube bank quantity that fills is participated in each time experiment;
CNG of the present invention is directly filled the laboratory data of technology and carry out statistical analysis, the results are shown in Table 2, table 3.
Table 2
Table 3
In table 2, table 3:
Directly fill the caisson initiation pressure: the gas storage pressure before tube bank begins to fill.
Directly fill caisson and finish pressure: the remaining gas storage pressure when tube bank no longer fills.
Technology is sold the gas number of times: promptly Dan Zuzhi fills caisson as filling the number of times that caisson fills at last.
Technology is sold tolerance: fill caisson technology at Dan Zuzhi and sell in the gas number of times experiment and treat the summation of selling tolerance that air container fills.Example: it is exactly the 1st summation of selling tolerance to the 5th experiment, i.e. 59.2m that the technology of tube bank 1 is sold tolerance
3
The technology gas taking rate: each group is directly filled the technology gas taking rate of caisson, and for after this group technology sells the gas number of times and finish, the summation that technology is sold tolerance accounts for and adds each of selling gas technology and organize the ratio that directly fills the caisson gas-storing capacity.
Add filling pressure: each group is directly filled caisson initiation pressure unanimity (22.6Mpa).
CNG of the present invention directly fills the aerating technological test and shows: 1, along with the increase of directly filling caisson quantity that participates in filling, technology gas taking rate of the present invention is increased to 52% by 10.5%.As adopting the more groups of designs of directly filling caisson and meeting technological requirement, also can improve the tolerance of selling of directly filling caisson greatly, have better economic benefit.2, sell gas speed and reach the 6m that country is recommended
3The requirement of/min is better than existing CNG air entraining substation and sells the index of gas speed (average 3-5m
3/ min).It is simple that CNG of the present invention directly fills the aerating technological operation, and aerating speed is fast, and the aerating time is short, high working efficiency.
In addition, CNG of the present invention directly fills air entraining substation and compares with compression type CNG air entraining substation, simple in structure, used critical piece technology maturation, working stability is reliable, the automaticity height has not only been saved operating cost greatly, and has reduced the energy loss of equipment such as the compressor of traditional C NG air entraining substation technology or high-pressure service pump.CNG of the present invention directly fills air entraining substation and saved the investment of building a station, reduced equipment such as the required compressor of other CNG air entraining substations, high-pressure service pump, and correspondingly simplified the operating procedure of filling machine, air container, reduced the fund of building a station.Reduced maintenance cost, saved maintenance cost equipment such as compressor, high-pressure service pumps.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing.
Accompanying drawing is the connection block diagram of air entraining substation of the present invention.
Embodiment
A kind of CNG directly fills aerating technology, comprises the steps:
1, the container to be filled of determining earlier to have at least in each caisson 1 one pressure to be higher than air container 13 to be filled is full of pressure 18.5Mpa, and in order to carry out normal aerating to air container 13 to be filled, the pressure in the caisson 1 is generally 22.6Mpa.Air filling gun 5 is linked to each other with air container 13 to be filled, by directly filling control gear 8 by selling the container pressure to be filled that gas control system device 12 detects air container 13 to be filled, when air container 13 to be filled wait that filling container pressure is full of pressure less than the container to be filled of air container 13 to be filled the time, then carry out next step;
2, by directly filling control gear 8 detects each caisson 1 by pressure signal collecting device 9 gas storage pressure 22.6Mpa; What device of air 11 was sold in setting directly fills lowest limit pressure differential deltap P=0.1Mpa, sells directly filling lowest limit pressure reduction and can once setting and get final product of device of air 11.By sell the gas control system of the selling devices 12 that are provided with in the device of air 11 will describedly directly fill lowest limit pressure reduction 0.1Mpa and air container to be filled 13 wait to fill container pressure 2.5Mpa sum 2.6Mpa collection and be input to directly fill control gear 8, and compare respectively with gas storage pressure numerical value 22.6Mpa in each caisson 1, draw each corresponding comparison value, directly fill caisson according to that minimum container of gas storage pressure in each comparison value selection caisson 1 as first-selection by directly filling control gear 8.In the present invention, the gas storage pressure of each caisson 1 is 22.6Mpa, then optional one of them directly fill caisson as first-selection and get final product.If there is one to be 21.6Mpa in the gas storage pressure of each caisson 1, and the gas storage pressure of other caisson 1 is all greater than 21.6Mpa, then selecting the minimum caisson of this gas storage pressure is that first-selection is directly filled caisson, can directly fill by the minimum caisson of first working pressure like this.The first-selected gas storage pressure that directly fills caisson should greater than described directly fill lowest limit pressure differential deltap P=0.1Mpa and air container to be filled 13 wait to fill container pressure 2.5Mpa sum, so just can directly fill aerating work, and carry out next step;
3, by pressure signal collecting device 9 and the gas control system of selling device 12 respectively in real time the said first-selection of monitoring directly fill the gas storage pressure 22.6Mpa of caisson and air container to be filled 13 wait to fill container pressure 2.5Mpa, ensure that CNG directly fills carrying out smoothly of aerating technology.Simultaneously, drive corresponding switch-dividing control valve 3 and main switch control valve 4 by directly filling control gear 8 respectively by filling order controller 10 and selling gas control system device 12, the action of total pressure table 7, thereby connect the first-selected air delivering pipeline of caisson and air container to be filled 13 that directly fills of said connection, utilize first-selected the two the pressure reduction of caisson and air container to be filled 13 that directly fills directly to fill, reach container to be filled until the container pressure to be filled of air container 13 to be filled and be full of pressure 18.5Mpa, or the gas storage pressure that should first-selection directly fills caisson and the difference of waiting to fill container pressure equal said when directly filling lowest limit pressure differential deltap P=0.1Mpa, stop directly filling, and carry out next step;
4, by selling the container pressure to be filled that gas control system device 12 detects the air container to be filled 13 after previous step is directly filled suddenly, when air container 13 to be filled wait that filling container pressure is full of pressure less than the container to be filled of air container 13 to be filled the time, repeating step 2, so that select one group directly to fill caisson 1 separately, repeating step 3 again, and directly fill aerating once more; When air container 13 to be filled wait that filling container pressure is full of pressure more than or equal to container to be filled the time, then send air container 13 to be filled and be full of signal, and finish whole filling process to directly filling control gear 8.
A kind ofly utilize CNG of the present invention directly to fill aerating technology directly to fill air entraining substation for the CNG of Motor Vehicle aerating, as shown in drawings, the device of air of selling that comprises caisson 1 and be connected with air filling gun 5, caisson 1 is gas storage tube bank, gas storage steel cylinder, gas storage storage tank or gas storage well.The number of caisson 1 is at least four, and partial pressure table 2 and switch-dividing control valve 3 all are installed respectively on the output tube of each caisson 1, and the two is electric valve, and back-up pressure gauge 2 all links to each other with pressure signal collecting device 9.The CNG gas storage pressure of 9 pairs of each caissons 1 of pressure signal collecting device carries out the real-time pressure data capture respectively, and feeds back to and directly fill control gear 8.Each switch-dividing control valve 3 all with fill order controller 10 and link to each other, fill order controller 10 and start the switch-dividing control valve of installing on each caisson 1 output tube 3 by the instruction of directly filling control gear 8.The gas control system of selling device 12 and the main switch control valve 4 that links to each other with the gas control system of selling device 12 respectively, total pressure table 7 and total discharge meter 6 are being set in the device of air on sale (filling machine) 11, the outlet end of each switch-dividing control valve 3 all is connected with main switch control valve 4, total pressure table 7 and total discharge meter 6 successively, sells gas control system device 12 and is used to finish real-time collection to air container 13 pressure signals to be filled, sells air cock control, sells gas and show, sell work such as gas metering.Total discharge meter 6 links to each other with air container 13 to be filled by air filling gun 5, and air container 13 to be filled is the air container that need fill rock gas, as automobile-used gas storage steel cylinder etc.The gas control system of selling device 12, fill order controller 10 and pressure signal collecting device 9 all with directly fill control gear 8 and link to each other.Directly fill control gear 8 according to pressure signal collecting device 9 and sell gas control system device 12 sell the atmospheric pressure data, directly fill the control requirement of aerating technology by CNG of the present invention, control fills order controller 10 and sells gas control system device 12, and the CNG that finishes caisson 13 to be filled fills work.Directly fill control gear 8 and be single-chip microcomputer or PC, in order to by pressure signal collecting device 9, fill each corresponding signal that order controller 10 and 12 transmission of the gas control system of selling device come and analyze, handle and send the control corresponding instruction.In the modern industry automation control system, various automatic pressure tables have been extensive use of, valve and supporting with it signal data acquisition device, the signal of gathering is carried out analysing and processing and send the control corresponding instruction by computer system, the pressure gauge 2 that CNG of the present invention directly fills air entraining substation to be adopted, switching control pilot 3 and corresponding pressure signal collecting device 9, fill order controller 10, the gas control system of selling device 12, directly fill control gear 8 and all adopt equipment based on the maturation of modern industry automation control system, therefore make CNG of the present invention directly fill air entraining substation and be able to simplified structure, make its functional reliability height, good stability.As shown in drawings, as require to fill simultaneously a plurality of devices to be filled, only need increase to fill order controller 10 accordingly and sell device of air 11 filling equipments such as grade and get final product.
Claims (3)
1, a kind of CNG directly fills aerating technology, it is characterized in that comprising the steps:
1., the container to be filled of determining earlier to have at least in each caisson (1) one pressure to be higher than air container to be filled (13) is full of pressure, by directly filling control gear (8) by selling the container pressure to be filled that gas control system device (12) detects air container to be filled (13), when air container to be filled (13) wait that filling container pressure is full of pressure less than the container to be filled of air container to be filled (13) time, then carry out next step;
2., by directly filling control gear (8) detects each caisson (1) by pressure signal collecting device (9) gas storage pressure; What device of air (11) was sold in setting directly fills lowest limit pressure reduction, by sell the gas control system of the selling device (12) that is provided with in the device of air (11) with described directly fill lowest limit pressure reduction and air container to be filled (13) wait that filling the container pressure sum is input to and directly fills control gear (8), and compare respectively with gas storage pressure numerical value in each caisson (1), draw each corresponding comparison value, select middle that the minimum container of gas storage pressure of caisson (1) directly to fill caisson (1) by directly filling control gear (8) according to each comparison value as first-selection, first-selection fling caisson (1) gas storage pressure should greater than described directly fill lowest limit pressure reduction and air container to be filled (13) wait to fill the container pressure sum, and carry out next step;
3., monitor said first-selection respectively in real time by pressure signal collecting device (9) and the gas control system of selling device (12) and directly fill the gas storage pressure of caisson (1) and the container pressure to be filled of air container to be filled (13), simultaneously, connect the pipeline that said first-selection is directly filled caisson (1) and air container to be filled (13) by directly filling control gear (8) by filling order controller (10) and the gas control system of selling device (12), the pressure reduction that utilizes first-selection directly to fill caisson (1) and air container to be filled (13) directly fills, reaching first-selection that container to be filled is full of pressure or should first-selection directly fills caisson (1) until the container pressure to be filled of air container to be filled (13) directly fills caisson (1) gas storage pressure and the difference of waiting to fill container pressure and equals said when directly filling lowest limit pressure reduction, stop directly filling, and carry out next step;
4., by selling the container pressure to be filled that gas control system device (12) detects the air container to be filled (13) after previous step is directly filled suddenly, when its container to be filled less than air container to be filled (13) was full of pressure, repeating step was 2.; When it is full of pressure more than or equal to container to be filled, then sends air container to be filled (13) and be full of signal, and finish whole filling process to directly filling control gear (8).
2, a kind ofly utilize the described CNG of claim 1 directly to fill aerating technology directly to fill air entraining substation for the CNG of Motor Vehicle aerating, what comprise caisson (1) and be connected with air filling gun (5) sells device of air (11), the number that it is characterized in that caisson (1) is at least four, partial pressure table (2) and switch-dividing control valve (3) all are installed respectively on the output tube of each caisson (1), each partial pressure table (2) all links to each other with pressure signal collecting device (9), each switch-dividing control valve (3) all with fill order controller (10) and link to each other, the main switch control valve (4) that the gas control system of selling device (12) is being set in the device of air on sale (11) and is linking to each other with the gas control system of selling device (12) respectively, total pressure table (7) and total discharge meter (6), the outlet end of each switch-dividing control valve (3) all successively with main switch control valve (4), total pressure table (7) and total discharge meter (6) are connected, total discharge meter (6) links to each other with air container to be filled (13) by air filling gun (5), sells gas control system device (12), fill order controller (10) and pressure signal collecting device (9) all with directly fill control gear (8) and link to each other.
3, CNG according to claim 2 directly fills air entraining substation, it is characterized in that caisson (1) is gas storage tube bank, gas storage steel cylinder, gas storage storage tank or gas storage well.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610081269A CN100575770C (en) | 2006-05-29 | 2006-05-29 | CNG directly fills aerating technology and CNG directly fills air entraining substation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610081269A CN100575770C (en) | 2006-05-29 | 2006-05-29 | CNG directly fills aerating technology and CNG directly fills air entraining substation |
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| CN101082389A CN101082389A (en) | 2007-12-05 |
| CN100575770C true CN100575770C (en) | 2009-12-30 |
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Cited By (3)
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| US9765930B2 (en) | 2012-01-31 | 2017-09-19 | J-W Power Company | CNG fueling system |
| US10018304B2 (en) | 2012-01-31 | 2018-07-10 | J-W Power Company | CNG fueling system |
| US10851944B2 (en) | 2012-01-31 | 2020-12-01 | J-W Power Company | CNG fueling system |
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| CN101509599A (en) * | 2009-03-31 | 2009-08-19 | 沈军 | Secondary gas filling station |
| CN102564500B (en) * | 2011-11-09 | 2013-11-13 | 北京爱社时代科技发展有限公司 | Method for estimating air consumption of compressed air system |
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| CN108930911B (en) * | 2018-06-13 | 2021-01-26 | 浙江昊凡科技有限公司 | Supply method and system of hydrogen energy of hydrogen station |
| CN109000147A (en) * | 2018-07-20 | 2018-12-14 | 上海汽车集团股份有限公司 | Mobile hydrogen feed system, method, apparatus, computer readable storage medium |
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- 2006-05-29 CN CN200610081269A patent/CN100575770C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9765930B2 (en) | 2012-01-31 | 2017-09-19 | J-W Power Company | CNG fueling system |
| US10018304B2 (en) | 2012-01-31 | 2018-07-10 | J-W Power Company | CNG fueling system |
| US10851944B2 (en) | 2012-01-31 | 2020-12-01 | J-W Power Company | CNG fueling system |
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| Publication number | Publication date |
|---|---|
| CN101082389A (en) | 2007-12-05 |
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