CN101813237A - Hydraulic CNG (Compressed Natural Gas) gas filling substation and pipeline system, control system and control method thereof - Google Patents
Hydraulic CNG (Compressed Natural Gas) gas filling substation and pipeline system, control system and control method thereof Download PDFInfo
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- 239000007789 gas Substances 0.000 title abstract description 58
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title abstract description 22
- 239000003345 natural gas Substances 0.000 title abstract description 11
- 238000012545 processing Methods 0.000 claims description 39
- 230000009183 running Effects 0.000 claims description 26
- 238000001514 detection method Methods 0.000 claims description 20
- 239000011435 rock Substances 0.000 claims description 18
- 238000010992 reflux Methods 0.000 claims description 15
- 238000012360 testing method Methods 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 description 15
- 239000010959 steel Substances 0.000 description 15
- 239000010720 hydraulic oil Substances 0.000 description 8
- 239000003921 oil Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000013589 supplement Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
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Abstract
The invention discloses a pipeline system and a control system of a gas filling substation and the gas filling substation comprising the same and also discloses a control method of the gas filling substation. The disclosed pipeline system of the gas filling substation comprises a pressurization mechanism and a gas dispenser and also comprises a first gasbomb set and a second gasbomb set, wherein the first gasbomb set comprises a plurality of first gasbombs, and the second gasbomb set comprises a pluraity of second gasbombs; the output ends of the first gasbombs are communicated with the first input port of a distributing valve by a first output control valve; the output ends of the second gasbombs are communicated with the second input port of the distributing valve by a second output control valve; and the pressurization ends of the first gasbombs and the pressurization ends of the second gasbombs are respectively communicated with the pressurization port the pressurization mechanism by a first pressurization control valve and a second pressurization control valve. The technical scheme can improve the gap pickup rate of the system while improving the gas supply capacity of the hydraulic CNG (Compressed Natural Gas) gas filling substation.
Description
Technical field
The present invention relates to a kind of hydraulic type CNG (Compressed Natural Gas, compressed natural gas) aerating technology specially refers to a kind of pipe-line system, control system of hydraulic type CNG air entraining substation and comprises the controlling method of the hydraulic type CNG air entraining substation and the hydraulic type CNG air entraining substation of above-mentioned pipe-line system and control system.
Background technique
Current, rock gas has been widely used in the many aspects of society, life.Wherein, utilize rock gas to act as a fuel, the running that drives other equipment has become an importance of gas utilization.Transportation for convenience and loading by pressurization forms compressed natural gas (CompressedNatural Gas) to rock gas, have become one of important way of gas utilization.
In order to enlarge the using scope of CNG, the current mode of taking to be provided with at preposition the CNG air entraining substation usually is that automobile or other are treated the aerating of aerating equipment at preposition.The CNG air entraining substation generally comprises steel cylinder and control section; Steel cylinder stores the CNG of prearranging quatity, and can treat aerating equipment air feed to automobile or other by predetermined pipeline; Control section is used to control the break-make of predetermined pipeline, to realize the control to the aerating process.Pressure and utilization ratio in order to improve CNG in the steel cylinder can also be provided with the supercharging part, to keep having predetermined pressure in the steel cylinder, the CNG in the steel cylinder are flowed out, and improve system's gas taking rate; At this moment, the CNG air entraining substation can be called hydraulic type CNG air entraining substation.
Chinese patent literature CN2905752 discloses a kind of hydraulic type CNG air entraining substation.This hydraulic type CNG air entraining substation utilizes oil hydraulic pump directly high-pressure liquid medium to be injected steel cylinder, makes the CNG in the steel cylinder keep predetermined pressure, flows out thereby make CNG pass through the interior predetermined pipeline in station, arrives the gas holder for the treatment of aerating equipment.Though above-mentioned hydraulic type CNG air entraining substation can improve system's gas taking rate, utilize the CNG in the steel cylinder as much as possible, can successfully realize treating simultaneously the aerating of aerating equipment.
But hydraulic type CNG air entraining substation the additional gas flow is subject to the hydraulic pressure pump delivery; Thereby,, just possibly can't satisfy the needs that the additional gas flow is increased in aerating peak period, and then cause the pressure of the CNG in the steel cylinder to reduce, the CNG flowing velocity is reduced, and then make the aerating overlong time, perhaps can't fill it up with the gas holder for the treatment of aerating equipment in the given time.
In order to improve hydraulic type CNG air entraining substation gas supply capacity, Chinese patent literature CN101327782 discloses another kind of hydraulic type CNG air entraining substation.This hydraulic type CNG air entraining substation comprises at least one from compressed steel bottle and at least one supercharging steel cylinder, and the CNG in the compressed steel bottle relies on internal pressure outwards to flow out, with to treating the aerating of aerating equipment; The hydraulic oil import of supercharging steel cylinder is connected with the hydraulic oil delivery side of pump, and the supercharging that depends on hydraulic-pressure pump keeps higher pressure, to treating the aerating of aerating equipment.Though this hydraulic type CNG air entraining substation can improve gas supply capacity, because it relies on the outside air feed of internal pressure from the compressed steel bottle, the inner pressure height that is detained of steel cylinder causes the gas taking rate of whole system to reduce.
Therefore, how when improving hydraulic type CNG air entraining substation gas supply capacity, improving system's gas taking rate, is the technical barrier of related domain.
Summary of the invention
Therefore, first technical problem that the present invention solves is, a kind of pipe-line system of hydraulic type CNG air entraining substation is provided, and with when improving hydraulic type CNG air entraining substation gas supply capacity, improves system's gas taking rate.
Second technical problem that the present invention solves is, a kind of control system of controlling the pipe-line system of above-mentioned hydraulic type CNG air entraining substation is provided.
The 3rd technical problem that the present invention solves is, a kind of hydraulic type CNG air entraining substation that comprises above-mentioned pipe-line system and control system is provided.
The 4th technical problem that the present invention solves is, a kind of controlling method of hydraulic type CNG air entraining substation is provided.
In order to solve above-mentioned first technical problem, the pipe-line system of hydraulic type CNG air entraining substation provided by the invention comprises booster body, filling machine, difference with the prior art is, also comprise the first air cylinder group and the second air cylinder group, the described first air cylinder group comprises a plurality of first air cylinders, and the described second air cylinder group comprises a plurality of second air cylinders; The output terminal of described first air cylinder is connected with first inlet opening of described distributing valve by the first output control valve, and the output terminal of described second air cylinder is connected with second inlet opening of described distributing valve by the second output control valve; The pressurized end of the pressurized end of described first air cylinder and second air cylinder is connected with the boost port of described booster body by first supercharger control valve and second supercharger control valve respectively; Distributing valve has first state and second state, at described first state, first inlet opening and second inlet opening are connected with first delivery outlet and second delivery outlet respectively, at described second state, first inlet opening and second inlet opening are connected with second delivery outlet and first delivery outlet respectively, and first delivery outlet of described distributing valve and second delivery outlet are connected with the low pressure port and the high-pressure mouth of filling machine respectively.
Optionally, the pressurized end of the pressurized end of described first air cylinder and second air cylinder is connected with the refluxing opening of described booster body by recycle control valve respectively.
Optionally, a plurality of described first supercharger control valves are connected with the boost port and the refluxing opening of described booster body respectively by one first total supercharger control valve and one first total recycle control valve, and a plurality of described second supercharger control valves are connected with the boost port and the refluxing opening of described booster body respectively by one second total supercharger control valve and one second total recycle control valve.
In order to solve above-mentioned second technical problem, provide be used to control the control system of the pipe-line system of above-mentioned any hydraulic type CNG air entraining substation, this control system comprises processing unit and performance element; Described processing unit is used for pressing the aerating air cylinder certainly according to first air cylinder conduct of predetermined policy selection predetermined quantity, and second air cylinder of selecting predetermined quantity is as supercharging aerating air cylinder, and first selection result that will obtain sends to performance element; Described performance element is used for according to first selection result, make described from pressing aerating air cylinder output terminal to be connected with first inlet opening of described distributing valve, described supercharging aerating air cylinder output terminal and pressurized end are connected with second inlet opening of described distributing valve and the boost port of booster body respectively, make distributing valve be in first state, make the booster body running.
Preferably, described control system also comprises pressure-detecting device, and described pressure-detecting device is used to detect the pressure of the inside of a bottle of supercharging aerating air cylinder; Described processing unit can select at least one second air cylinder for replenishing the aerating air cylinder; During greater than predetermined value, described processing unit can send pressure signal up to standard to performance element at the pressure of the inside of a bottle of described supercharging aerating air cylinder; Described performance element can be according to first selection result, make described from pressing aerating air cylinder output terminal to be connected with first inlet opening of described distributing valve, described supercharging aerating air cylinder pressurized end is connected with the boost port of described booster body, the output terminal that replenishes the aerating air cylinder is connected with second inlet opening of distributing valve, make distributing valve be in first state, make the booster body running; According to pressure signal up to standard, the output terminal that disconnect to replenish the aerating air cylinder is connected with pipeline between second inlet opening of described distributing valve, and the output terminal of supercharging aerating air cylinder is connected with second inlet opening of described distributing valve.
Preferably, described control system also comprises the loine pressure detection device; Described loine pressure detection device is used to detect the pressure of second inlet opening of distributing valve, and sends line pressure signal to processing unit; After making described supercharging aerating air cylinder output terminal and second inlet opening of described distributing valve be connected, at the pressure of second inlet opening during greater than predetermined value, described processing unit can send the tonifying Qi signal to performance element, during less than predetermined value, described processing unit can send to performance element and stop the tonifying Qi signal at the pressure of second inlet opening; Described performance element can open the second output control valve that links to each other with the output terminal of additional aerating air cylinder according to the tonifying Qi signal; According to stopping the tonifying Qi signal, the second output control valve that links to each other with additional aerating air cylinder output terminal is closed.
Preferably, this control system comprises the surplus detection device, and described surplus detection device is used to detect the rock gas surplus in the supercharging aerating air cylinder; Described processing unit also is used for according to the testing result of surplus detection device and predetermined strategy, second air cylinder of selecting predetermined quantity is as pressing the aerating air cylinder certainly, first air cylinder of selecting predetermined quantity is as supercharging aerating air cylinder, and second selection result that will obtain sends to performance element; Described performance element is used for according to second selection result, make described from pressing aerating air cylinder output terminal to be connected with second inlet opening of described distributing valve, described supercharging aerating air cylinder output terminal and pressurized end are connected with first inlet opening of described distributing valve and the boost port of booster body respectively, make distributing valve be in second state, make the booster body running.
Preferably, described loine pressure detection device also is used to detect the pressure of first inlet opening of distributing valve; Described processing unit can also select at least one first air cylinder for replenishing the aerating air cylinder; During greater than predetermined value, described processing unit can send pressure signal up to standard to performance element at the pressure of the inside of a bottle of described supercharging aerating air cylinder; After making described supercharging aerating air cylinder output terminal and first inlet opening of described distributing valve be connected, at the pressure of first inlet opening during greater than predetermined value, described processing unit can send the tonifying Qi signal to performance element, during less than predetermined value, described processing unit can send to performance element and stop the tonifying Qi signal at the pressure of first inlet opening; Described performance element can be according to second selection result, make described from pressing aerating air cylinder output terminal to be connected with second inlet opening of described distributing valve, described supercharging aerating air cylinder pressurized end is connected with the boost port of described booster body, the output terminal that replenishes the aerating air cylinder is connected with first inlet opening of distributing valve, make distributing valve be in second state, make the booster body running; According to pressure signal up to standard, the output terminal that disconnect to replenish the aerating air cylinder is connected with pipeline between first inlet opening of distributing valve, and the output terminal of supercharging aerating air cylinder is connected with first inlet opening of distributing valve; According to the tonifying Qi signal, the first output control valve that links to each other with the output terminal of additional aerating air cylinder is opened; According to stopping the tonifying Qi signal, the first output control valve that links to each other with additional aerating air cylinder output terminal is closed.
In order to solve above-mentioned the 3rd technical problem, the invention provides a kind of hydraulic type CNG air entraining substation, this comprises hydraulic type CNG air entraining substation pipe-line system and control system, wherein, described pipe-line system comprises booster body, filling machine, the first air cylinder group and the second air cylinder group, the described first air cylinder group comprises a plurality of first air cylinders, and the described second air cylinder group comprises a plurality of second air cylinders; The output terminal of described first air cylinder is connected with first inlet opening of described distributing valve by the first output control valve, and the output terminal of described second air cylinder is connected with second inlet opening of described distributing valve by the second output control valve; The pressurized end of the pressurized end of described first air cylinder and second air cylinder is connected with the boost port of described booster body by first supercharger control valve and second supercharger control valve respectively; Distributing valve has first state and second state, at described first state, first inlet opening and second inlet opening are connected with first delivery outlet and second delivery outlet respectively, at described second state, first inlet opening and second inlet opening are connected with second delivery outlet and first delivery outlet respectively, and first delivery outlet of described distributing valve and second delivery outlet are connected with the low pressure port and the high-pressure mouth of filling machine respectively; Described control system is above-mentioned any control system.
In order to solve above-mentioned the 4th technical problem, the present invention also provides a kind of controlling method of hydraulic type CNG air entraining substation, described hydraulic type CNG air entraining substation comprises pipe-line system, described pipe-line system comprises booster body, filling machine, the first air cylinder group and the second air cylinder group, the described first air cylinder group comprises a plurality of first air cylinders, and the described second air cylinder group comprises a plurality of second air cylinders; The output terminal of described first air cylinder is connected with first inlet opening of described distributing valve by the first output control valve, and the output terminal of described second air cylinder is connected with second inlet opening of described distributing valve by the second output control valve; The pressurized end of the pressurized end of described first air cylinder and second air cylinder is connected with the boost port of described booster body by first supercharger control valve and second supercharger control valve respectively; Distributing valve has first state and second state, at described first state, first inlet opening and second inlet opening are connected with first delivery outlet and second delivery outlet respectively, at described second state, first inlet opening and second inlet opening are connected with second delivery outlet and first delivery outlet respectively, and first delivery outlet of described distributing valve and second delivery outlet are connected with the low pressure port and the high-pressure mouth of filling machine respectively; Described controlling method may further comprise the steps:
S100, first air cylinder of selecting predetermined quantity is as pressing the aerating air cylinder certainly, and second air cylinder of selecting predetermined quantity is as supercharging aerating air cylinder; Make described from pressing aerating air cylinder output terminal to be connected with first inlet opening of described distributing valve, described supercharging aerating air cylinder output terminal and pressurized end are connected with second inlet opening of described distributing valve and the boost port of booster body respectively, make distributing valve be in first state, make the booster body running;
S200, when the rock gas surplus in second air cylinder of selecting was less than predetermined value, second air cylinder of selecting predetermined quantity was as pressing the aerating air cylinder certainly, and first air cylinder of selecting predetermined quantity is as supercharging aerating air cylinder; Make described from pressing aerating air cylinder output terminal to be connected with second inlet opening of described distributing valve, described supercharging aerating air cylinder output terminal and pressurized end are connected with first inlet opening of described distributing valve and the boost port of booster body respectively, make distributing valve be in second state, make the booster body running; When the rock gas surplus is less than predetermined value in first air cylinder of selecting, return step S100.
Preferably, described step S100 may further comprise the steps:
S110, first air cylinder of selecting predetermined quantity be as from pressing the aerating air cylinder, and second air cylinder of selecting predetermined quantity is as supercharging aerating air cylinder, and select at least one second air cylinder for replenishing the aerating air cylinder; Make described from pressing aerating air cylinder output terminal to be connected with first inlet opening of described distributing valve, described supercharging aerating air cylinder pressurized end is connected with the boost port of described booster body, the output terminal that replenishes the aerating air cylinder is connected with second inlet opening of described distributing valve, make distributing valve be in first state, make the booster body running;
S120, at the pressure of the inside of a bottle of described supercharging aerating air cylinder during greater than predetermined value, the output terminal that disconnects described additional aerating air cylinder is connected with pipeline between second inlet opening of described distributing valve, and the output terminal of supercharging aerating air cylinder is connected with second inlet opening of distributing valve.
Preferably, in step S120, also comprise: at the pressure of second inlet opening of distributing valve during greater than predetermined value, the second output control valve that will link to each other with additional aerating air cylinder output terminal is opened, during less than predetermined value, the second output control valve that will link to each other with additional aerating air cylinder output terminal is closed at the pressure of second inlet opening.
Compared with prior art, when utilizing the pipe-line system of hydraulic type CNG air entraining substation provided by the invention, because the output terminal of each air cylinder is connected with two inlet openings of distributing valve respectively, pressurized end is connected with the boost port of booster body by suitable supercharger control valve respectively, like this, booster body can be as required to each air cylinder supercharging.When air entraining substation the additional gas demand volume is increased, at least can make one first air cylinder and one second air cylinder provide low pressure natural gas and high-pressure natural gas by distributing valve to filling machine simultaneously, the pressure that keeps the filling machine high-pressure mouth satisfies the additional gas demand; When air entraining substation the additional gas demand volume is reduced, can select an outside air feed in first air cylinder or second air cylinder according to actual needs, thereby can improve the adaptability of hydraulic type CNG air entraining substation greatly; Simultaneously, the boost port of booster body can be connected with the pressurized end of any air cylinder, the rock gas in arbitrary air cylinder can be released like this, improves system's gas taking rate.
Providing on the basis of above-mentioned pipe-line system, the control system of the pipe-line system of this hydraulic type of the control that provides CNG air entraining substation can realize the automatic switchover of pipe-line system state, can improve hydraulic type CNG air entraining substation adaptability so further, satisfy the needs of external air feed.
Wherein, in further optimal technical scheme, lower in supercharging aerating air cylinder internal pressure, when not reaching predetermined value, by select other suitable air cylinders as a supplement the aerating air cylinder provide high pressure air for pressure-increasing machine, like this, can utilize air cylinder to begin higher pressure on the one hand, reduce the operating cost of hydraulic type CNG air entraining substation, on the other hand, can remedy since turbo lag produce to add throughput low, aerating adds discontented negative consequence.
In further technological scheme, be higher than predetermined value at supercharging aerating air cylinder pressure, by replenishing high-pressure natural gas to additional aerating air cylinder; Like this, can make full use of the energy of booster body output, store more high-pressure natural gas, satisfy external air feed needs, improve the gas supply capacity of hydraulic type CNG air entraining substation.
On the basis of above-mentioned pipe-line system and control system, the hydraulic type CNG air entraining substation that comprises above-mentioned pipe-line system and control system that provides and the controlling method of hydraulic type CNG air entraining substation also have corresponding technique effect.
Description of drawings
Fig. 1 is the schematic representation of the pipe-line system of the hydraulic type CNG air entraining substation that provides of the embodiment of the invention one;
Fig. 2 is in the embodiment of the invention one, the connecting pipeline schematic representation of distributing valve and air cylinder;
Fig. 3 is in the pipe-line system of the hydraulic type CNG air entraining substation that provides of the embodiment of the invention two, the pipeline jointing construction schematic representation between air cylinder pressurized end and the booster body.
Embodiment
Describe the present invention below in conjunction with accompanying drawing, the description of this part only is exemplary and explanatory, should any restriction not arranged to protection scope of the present invention.
Please refer to Fig. 1 and Fig. 2, Fig. 1 is the schematic representation of the pipe-line system of the hydraulic type CNG air entraining substation that provides of the embodiment of the invention one, and Fig. 2 is in the embodiment of the invention one, the connecting pipeline schematic representation of distributing valve and air cylinder.
The pipe-line system of the hydraulic type CNG air entraining substation that embodiment one provides comprises gas storage mechanism, filling machine 300, booster body 400 and distributing valve 500.
Gas storage mechanism comprises a plurality of air cylinders, and according to the annexation difference, a plurality of air cylinders form two groups, are called the first air cylinder group 100 and the second air cylinder group 200.The first air cylinder group 100 comprises a plurality of first air cylinders 110, and a plurality of first air cylinders are labeled as S1, S2......Sm respectively.Equally, the second air cylinder group 200 comprises a plurality of second air cylinders 210, and a plurality of second air cylinders are mark T1, T2......Tm respectively.Wherein, m is an integer.
On the one hand, be provided with in the pipe-line system and a plurality of one to one output control valves of air cylinder, the output terminal of each first air cylinder 110 is connected with the first inlet opening P of distributing valve 500 by one first output control valve 120, and the output terminal of each second air cylinder 210 is connected with the second inlet opening T of distributing valve 500 by one second output control valve 220.On the other hand, the pressurized end of each first air cylinder 110 is connected with the boost port of booster body 400 by one first supercharger control valve 130, and the pressurized end of each second air cylinder 210 is connected with the boost port of booster body 400 by one second supercharger control valve 230.
Distributing valve 500 can be a four-way change-over valve, has four pipe interfaces and three kinds of states; As shown in Figure 2, four pipe interfaces are respectively the first inlet opening P, the second inlet opening T, the first delivery outlet A and the second delivery outlet B; Three kinds of states are respectively original state, first state and second state, and in original state, the first inlet opening P, the second inlet opening T, the first delivery outlet A and the second delivery outlet B are not connected mutually, and distributing valve 500 is in closed condition; At first state, the first inlet opening P and the second inlet opening T are connected with the first delivery outlet A and the second delivery outlet B respectively; At second state, the first inlet opening P and the second inlet opening T are connected with the second delivery outlet B and the first delivery outlet A respectively.Distributing valve 500 can have multiple choices, and according to the difference of control mode, distributing valve can be solenoid valve, mortor operated valve, pneumatic valve or the valve of control otherwise, for security consideration, preferentially selects pneumatic valve for use; According to its structure difference, distributing valve can be monomer valve, combination brake switch and proporting or integrated valve.Equally, the output control valve that is connected with the air cylinder output terminal also can have kind of a selection with the supercharger control valve that links to each other with each air cylinder pressurized end, in this example, preferentially selects pneumatic valve for use.
Filling machine 300 comprises low pressure port and high-pressure mouth, and low pressure port links to each other with the low pressure air filling gun, and with the lower CNG of outside supply pressure, high-pressure mouth links to each other with the high pressure air filling gun, with the higher CNG of outside supply pressure.
In addition, also be provided with rupture disk 01 at each air cylinder output terminal, when occurring temperature superelevation or pressure superelevation in the air cylinder, rupture disk 01 explosion automatically, to discharge gas in the air cylinder, in order to avoid produce bigger accident, on the pipeline between distributing valve 500 and the air cylinder output terminal, be connected with filter 02, so that CNG is filtered.
When utilizing the pipe-line system of the hydraulic type CNG air entraining substation that embodiment one provides, owing to comprise a plurality of first air cylinders 110 and a plurality of second air cylinder 210 in the pipe-line system, the output terminal of each air cylinder is connected with two inlet openings of distributing valve 500 respectively, pressurized end is connected by the boost port of suitable supercharger control valve with booster body 400 respectively, like this, booster body 400 can be as required to each air cylinder supercharging.When this air entraining substation the additional gas demand volume is increased, at least can make one first air cylinder and one second air cylinder provide low pressure natural gas and high-pressure natural gas by distributing valve 500 to filling machine 300 simultaneously, the pressure that keeps filling machine 300 high-pressure mouths satisfies the additional gas demand; When air entraining substation the additional gas demand volume is reduced, can select an outside air feed in first air cylinder or second air cylinder according to actual needs, thereby can improve the adaptability of hydraulic type CNG air entraining substation greatly; Simultaneously, the boost port of booster body can be connected with the pressurized end of any air cylinder, the rock gas in arbitrary air cylinder can be released like this, improves system's gas taking rate.
As shown in Figure 1, among the embodiment one, also be provided with return line between the refluxing opening of each air cylinder pressurized end and booster body, in return line, be provided with recycle control valve, think that the control of the reflux operation of hydraulic oil provides convenience, promptly between the refluxing opening of the pressurized end of each first air cylinder 110 and booster body 400, also be provided with first recycle control valve 140, between the refluxing opening of the pressurized end of each second air cylinder 210 and booster body 400, also be provided with second recycle control valve 240; When the oil in the first predetermined air cylinder 110 of needs refluxes, first recycle control valve 140 can be opened.
Certainly, each air cylinder pressurized end is connected with pipeline between the booster body and is not limited to said structure, in the pipe-line system of the hydraulic type CNG air entraining substation that the embodiment of the invention two provides, just provides the pipeline that connects each air cylinder pressurized end and booster body with another kind.
With reference to figure 3, this figure is in the pipe-line system of the hydraulic type CNG air entraining substation that provides of the embodiment of the invention two, the pipeline jointing construction schematic representation between air cylinder pressurized end and the booster body.
As shown in the figure, the pressurized end of each first air cylinder 110 all is connected with one first supercharger control valve 130, and the pressurized end of each second air cylinder 210 all is connected with one second supercharger control valve 230.
A plurality of first supercharger control valves 130 are connected with the boost port of booster body 400 by one first total supercharger control valve 150, and simultaneously, a plurality of first supercharger control valves 130 are connected with the refluxing opening of booster body 400 by one first total recycle control valve 160.Equally, a plurality of second supercharger control valves 230 are connected with the boost port of booster body 400 by one second total supercharger control valve 250, simultaneously, a plurality of second supercharger control valves 230 are connected with the refluxing opening of booster body 400 by one first total recycle control valve 260.The benefit of this pipeline structure is, can reduce the quantity of control valve on the one hand, on the other hand, first total supercharger control valve 150, first total recycle control valve 160, second total supercharger control valve 250 and second total recycle control valve 260 can be integrated into a grouping control valve by suitable mode, think that the maintenance and the establishment of hydraulic type CNG air entraining substation facilitates.
Based on the pipe-line system of above-mentioned hydraulic type CNG air entraining substation, in order to bring into play the advantage of above-mentioned pipe-line system more fully, the present invention also provides the control system of the pipe-line system that is used to control above-mentioned hydraulic type CNG air entraining substation.
First kind of control system that is used to control the pipe-line system of above-mentioned hydraulic type CNG air entraining substation provided by the invention comprises processing unit and performance element, below its function is described in detail.
Described processing unit is used for pressing the aerating air cylinder certainly according to first air cylinder, 110 conducts of predetermined policy selection predetermined quantity, second air cylinder 210 of selecting predetermined quantity is as supercharging aerating air cylinder, and first selection result that will obtain sends to performance element.Predetermined strategy can have multiple choices, such as: can in processing unit, preset the order of each air cylinder, according to predetermined select progressively air cylinder.Because from pressing the aerating air cylinder to depend on the outside air feed of pressure of the inside of a bottle, supercharging aerating air cylinder depends on the outside air feed of promotion of booster body, therefore, preferred mode is: select pressure of the inside of a bottle to press the aerating air cylinder certainly than higher air cylinder conduct, select the lower air cylinder of pressure of the inside of a bottle as supercharging aerating air cylinder, and make from pressing the aerating air cylinder to belong to different air cylinder groups with supercharging aerating air cylinder.Pressure of the inside of a bottle can be determined according to actual aerating needs, also can determine according to laboratory data.In order to improve the endurance of hydraulic type CNG air entraining substation aerating, processing unit can select an air cylinder as from pressing the aerating air cylinder, selects an air cylinder as supercharging aerating air cylinder.
Performance element can move according to the execution that first selection result that processing unit obtains is scheduled to; Specifically comprise: make distributing valve 500 be in first state, make booster body 400 runnings; By control to suitable valve, make from pressing aerating air cylinder output terminal to be connected, described supercharging aerating air cylinder output terminal and pressurized end are connected with the second inlet opening T of described distributing valve 500 and the boost port of booster body 400 respectively with the first inlet opening P of described distributing valve 500.The purpose of booster body 400 runnings is, make the high-pressure service pump of booster body 400 discharge high pressure oil, the high pressure oil that high-pressure service pump is discharged enters in the supercharging aerating air cylinder by boost port, increases its pressure of the inside of a bottle, makes the successfully outside air feed of output terminal of supercharging aerating air cylinder.Make distributing valve 500 be in first state, can make the first inlet opening P and the second inlet opening T of distributing valve 500 keep being connected with the first delivery outlet A and the second delivery outlet B respectively, make from pressing the aerating air cylinder, make supercharging aerating air cylinder by the high-pressure mouth air feed of distributing valve 500 to filling machine 300 by the low pressure port air feed of distributing valve 500 to filling machine 300.
Utilize above-mentioned control system, can be from pressure aerating air cylinder and supercharging aerating air cylinder simultaneously to the filling machine air feed, and with the supercharging of 400 pairs of supercharging aeratings of booster body air cylinder, not only can improve the gas supply capacity of hydraulic type CNG air entraining substation, can also guarantee that filling machine 300 high-pressure mouths have higher pressure, improve aerating efficient.
Should be noted that above-mentioned first air cylinder 110 and second air cylinder 210 and distributing valve 500 first states and second state are comparatively speaking; Core of the present invention is, air cylinder is divided into two groups, and when the air cylinder in a group during directly to filling machine 300 low pressure port air feed, booster body carries out supercharging to the predetermined air cylinder in other a group, simultaneously, make the high-pressure mouth air feed of the air cylinder of supercharging to filling machine 300.In practical operation, can select proper state according to actual needs, realize purpose of the present invention.
Because booster body is to the supercharging of supercharging aerating air cylinder the time, the increase of supercharging aerating air cylinder pressure needs the regular hour.For during this period of time, satisfy the needs of filling machine 300 high-pressure mouth air feed, the present invention also provides second kind of control system.
On the basis of above-mentioned first kind of control system, second kind of control system can also comprise the pressure-detecting device of the pressure of the inside of a bottle that is used to detect supercharging aerating air cylinder; Be appreciated that a plurality of pressure-detecting devices can be set, detect with the pressure of the inside of a bottle to each air cylinder simultaneously.At this moment, one or more second air cylinders 210 that processing unit can also be selected to be scheduled to are for replenishing the aerating air cylinder, and this additional aerating air cylinder is used for when supercharging aerating air cylinder and pressure of the inside of a bottle are low, to the high-pressure mouth air feed of filling machine 300; Simultaneously, in order to guarantee to replenish the gas supply capacity of aerating air cylinder, should select the higher air cylinder of pressure of the inside of a bottle aerating air cylinder as a supplement for use.Processing unit can also during greater than predetermined value, send pressure signal up to standard to performance element, so that performance element carries out predetermined actions at the pressure of the inside of a bottle of supercharging aerating air cylinder.
At this moment, described performance element can be according to first selection result, make described from pressing aerating air cylinder output terminal to be connected with the first inlet opening P of described distributing valve 500, described supercharging aerating air cylinder pressurized end is connected with the boost port of described booster body 400, the output terminal that replenishes the aerating air cylinder is connected with the second inlet opening T of distributing valve 500; Equally, make distributing valve 500 be in first state, make booster body 400 runnings; At this moment, replenish the high-pressure mouth air feed of aerating air cylinder to filling machine 300.Performance element can also be according to pressure signal up to standard, the output terminal that disconnect to replenish the aerating air cylinder is connected with pipeline between the second inlet opening T of distributing valve 500, the output terminal of supercharging aerating air cylinder is connected with the second inlet opening T of distributing valve, makes the high-pressure mouth air feed of supercharging aerating air cylinder to filling machine 300.
On the basis of above-mentioned second kind of control system, the present invention also provides the third control system, and the third control system also comprises the loine pressure detection device; This loine pressure detection device is used to detect the pressure of the second inlet opening T of distributing valve 500, and sends line pressure signal to processing unit.At this moment, after making supercharging aerating air cylinder output terminal and the second inlet opening T of described distributing valve 500 be connected, at the pressure of the second inlet opening T during greater than predetermined value, processing unit can send the tonifying Qi signal to performance element, during less than predetermined value, processing unit can send to performance element and stop the tonifying Qi signal at the pressure of the second inlet opening T.Accordingly, performance element can be according to the tonifying Qi signal, the second output control valve 220 that links to each other with the output terminal of additional aerating air cylinder is opened, and can second be exported control valve 220 and close according to what stop that the tonifying Qi signal will link to each other with additional aerating air cylinder output terminal.The high pressure oil that this control system can make full use of booster body 400 outputs carries out supercharging at least two second air cylinders 210 simultaneously, for follow-up air feed provides the basis, reduces the idle running time of booster body 400.
The automatic switchover of control system for convenience, in the 4th kind of control system provided by the invention, also comprise the surplus detection device that is used to detect the rock gas surplus in the supercharging aerating air cylinder, amount with rock gas in the real-time monitoring supercharging aerating air cylinder, preferably, a plurality of surplus detection devices are set, detect with surplus to each air cylinder; The surplus detection device can be a liquid level detector, detects with position hydraulic oil, and also can be other position transducers, to realize detection to rock gas surplus in the air cylinder.
Processing unit also is used for according to the testing result of surplus detection device and predetermined strategy, second air cylinder of selecting predetermined quantity is as pressing the aerating air cylinder certainly, first air cylinder of selecting predetermined quantity is as supercharging aerating air cylinder, and second selection result that will obtain sends to performance element.
Accordingly, described performance element is used for according to second selection result, make described from pressing aerating air cylinder output terminal to be connected with the second inlet opening T of described distributing valve 500, described supercharging aerating air cylinder output terminal and pressurized end are connected with the first inlet opening P of described distributing valve 500 and the boost port of booster body 400 respectively, make distributing valve 500 be in second state, make booster body 400 runnings.Like this, just realize switching to air feed state between the different air cylinder groups.Make in conduct previous stage from pressing first air cylinder 110 of aerating air cylinder as supercharging aerating air cylinder, to increase its pressure of the inside of a bottle by booster body 400, as much as possible its inner rock gas is released, raising system gas taking rate, select the second predetermined air cylinder 210 as pressing the aerating air cylinder certainly simultaneously, the preferential selection in previous stage, second air cylinder 210 of aerating air cylinder is as pressing the aerating air cylinder certainly, to guarantee external gas supply capacity as a supplement.
Equally, on the basis of the 4th kind of control system, can also make described loine pressure detection device detect the pressure of the first inlet opening P of distributing valve 500; And make processing unit be additional aerating air cylinder according at least one first air cylinder 110 of predetermined policy selection; During greater than predetermined value, described processing unit can send pressure signal up to standard to performance element at the pressure of the inside of a bottle of described supercharging aerating air cylinder; After making described supercharging aerating air cylinder output terminal and the first inlet opening P of described distributing valve 500 be connected, at the pressure of the first inlet opening P during greater than predetermined value, described processing unit can send the tonifying Qi signal to performance element, during less than predetermined value, described processing unit can send to performance element and stop the tonifying Qi signal at the pressure of the first inlet opening P.
Accordingly, described performance element can be according to second selection result, make described from pressing aerating air cylinder output terminal to be connected with the second inlet opening T of described distributing valve 500, described supercharging aerating air cylinder pressurized end is connected with the boost port of described booster body 400, the output terminal that replenishes the aerating air cylinder is connected with the first inlet opening P of distributing valve 500, make distributing valve be in second state, make booster body 400 runnings; According to pressure signal up to standard, the output terminal that disconnect to replenish the aerating air cylinder is connected with pipeline between the first inlet opening P of distributing valve 500, and the output terminal of supercharging aerating air cylinder is connected with the first inlet opening P of distributing valve 500; According to the tonifying Qi signal, the first output control valve 120 that links to each other with the output terminal of additional aerating air cylinder is opened, and can first be exported control valve 120 and close according to what stop that the tonifying Qi signal will link to each other with additional aerating air cylinder output terminal.Its detailed operation principle, identical with second kind provided by the invention, the third control system, do not repeat them here.
On the basis of pipe-line system that above-mentioned hydraulic type CNG air entraining substation is provided and control system, the invention provides a kind of hydraulic type CNG air entraining substation that comprises the pipe-line system and the control system of hydraulic type CNG air entraining substation, the pipe-line system of described hydraulic type CNG air entraining substation comprises booster body, filling machine, the first air cylinder group and the second air cylinder group, the described first air cylinder group comprises a plurality of first air cylinders, and the described second air cylinder group comprises a plurality of second air cylinders; The output terminal of described first air cylinder is connected with first inlet opening of described distributing valve by the first output control valve, and the output terminal of described second air cylinder is connected with second inlet opening of described distributing valve by the second output control valve; The pressurized end of the pressurized end of described first air cylinder and second air cylinder is connected with the boost port of described booster body by first supercharger control valve and second supercharger control valve respectively; Distributing valve has first state and second state, at described first state, first inlet opening and second inlet opening are connected with first delivery outlet and second delivery outlet respectively, at described second state, first inlet opening and second inlet opening are connected with second delivery outlet and first delivery outlet respectively, and first delivery outlet of described distributing valve and second delivery outlet are connected with the low pressure port and the high-pressure mouth of filling machine respectively; Control system is above-mentioned any control system.
Owing to utilize the pipe-line system of above-mentioned hydraulic type CNG air entraining substation and control system to have above-mentioned effect, comprise that the pipe-line system of this hydraulic type CNG air entraining substation and the hydraulic type CNG air entraining substation of control system also have the corresponding techniques effect.
On the basis of above-mentioned hydraulic type CNG air entraining substation, the controlling method of a kind of hydraulic type CNG air entraining substation that the present invention also provides.This method is based on a kind of pipe-line system of hydraulic type CNG air entraining substation and proposes, described hydraulic type CNG air entraining substation comprises pipe-line system, described pipe-line system comprises booster body, filling machine, the first air cylinder group and the second air cylinder group, the described first air cylinder group comprises a plurality of first air cylinders, and the described second air cylinder group comprises a plurality of second air cylinders; The output terminal of described first air cylinder is connected with first inlet opening of described distributing valve by the first output control valve, and the output terminal of described second air cylinder is connected with second inlet opening of described distributing valve by the second output control valve; The pressurized end of the pressurized end of described first air cylinder and second air cylinder is connected with the boost port of described booster body by first supercharger control valve and second supercharger control valve respectively; Distributing valve has first state and second state, at described first state, first inlet opening and second inlet opening are connected with first delivery outlet and second delivery outlet respectively, at described second state, first inlet opening and second inlet opening are connected with second delivery outlet and first delivery outlet respectively, and first delivery outlet of described distributing valve and second delivery outlet are connected with the low pressure port and the high-pressure mouth of filling machine respectively.
The method that provides may further comprise the steps:
S100, first air cylinder of selecting predetermined quantity is as pressing the aerating air cylinder certainly, and second air cylinder of selecting predetermined quantity is as supercharging aerating air cylinder; Make described from pressing aerating air cylinder output terminal to be connected with first inlet opening of described distributing valve, described supercharging aerating air cylinder output terminal and pressurized end are connected with second inlet opening of described distributing valve and the boost port of booster body respectively, make distributing valve be in first state, make the booster body running;
S200, when the rock gas surplus in second air cylinder of selecting is less than predetermined value, select predetermined quantity, other second air cylinder is as from pressing the aerating air cylinder, selects predetermined quantity first air cylinder as supercharging aerating air cylinder; Make described from pressing aerating air cylinder output terminal to be connected with second inlet opening of described distributing valve, described supercharging aerating air cylinder output terminal and pressurized end are connected with first inlet opening of described distributing valve and the boost port of booster body respectively, make distributing valve be in second state, make the booster body running; When the rock gas surplus is less than predetermined value in first air cylinder of selecting, return step S100.
Because booster body is to the supercharging of supercharging aerating air cylinder the time, the increase of supercharging aerating air cylinder pressure needs the regular hour, for during this period of time, satisfies the needs to filling machine high-pressure mouth air feed, and described step S100 may further comprise the steps:
S110 selects first air cylinder of predetermined quantity and the conduct of second air cylinder to press aerating air cylinder and supercharging aerating gas storage certainly, and selects at least one second air cylinder for replenishing the aerating air cylinder; Make described from pressing aerating air cylinder output terminal to be connected with first inlet opening of described distributing valve, described supercharging aerating air cylinder pressurized end is connected with the boost port of described booster body, the output terminal that replenishes the aerating air cylinder is connected with second inlet opening of described distributing valve, make distributing valve be in first state, make the booster body running.
S120, at the pressure of the inside of a bottle of described supercharging aerating air cylinder during greater than predetermined value, the output terminal that disconnects described additional aerating air cylinder is connected with pipeline between second inlet opening of described distributing valve, and the output terminal of supercharging aerating air cylinder is connected with second inlet opening of distributing valve.
In order to make full use of booster body, reduce the idle running time of booster body, in step S120, can also comprise:
At the pressure of second inlet opening of distributing valve during greater than predetermined value, the second output control valve that will link to each other with additional aerating air cylinder output terminal is opened, during less than predetermined value, the second output control valve that will link to each other with additional aerating air cylinder output terminal is closed at the pressure of second inlet opening.
Certainly, also can make step S200 comprise above-mentioned steps, even step S200 may further comprise the steps:
S210 selects second air cylinder of predetermined quantity and the conduct of first air cylinder to press aerating air cylinder and supercharging aerating gas storage certainly, and selects at least one first air cylinder for replenishing the aerating air cylinder; Make described from pressing aerating air cylinder output terminal to be connected with second inlet opening of described distributing valve, described supercharging aerating air cylinder pressurized end is connected with the boost port of described booster body, the output terminal that replenishes the aerating air cylinder is connected with first inlet opening of described distributing valve, make distributing valve be in second state, make the booster body running;
S220, at the pressure of the inside of a bottle of described supercharging aerating air cylinder during greater than predetermined value, the output terminal that disconnects described additional aerating air cylinder is connected with pipeline between first inlet opening of described distributing valve, and the output terminal of supercharging aerating air cylinder is connected with first inlet opening of distributing valve; At the pressure of first inlet opening of distributing valve during greater than predetermined value, the first output control valve that will link to each other with additional aerating air cylinder output terminal is opened, during less than predetermined value, the first output control valve that will link to each other with additional aerating air cylinder output terminal is closed at the pressure of first inlet opening; When the rock gas surplus is less than predetermined value in first air cylinder of selecting, return step S100.
Based on the pipe-line system that the embodiment of the invention one provides, at step S110, can select the first air cylinder S1 for pressing the aerating air cylinder certainly, selecting the second air cylinder T1 is supercharging aerating air cylinder, selects the second air cylinder T2 for replenishing the aerating air cylinder; At step S210, can select the second air cylinder T2 for pressing the aerating air cylinder certainly, selecting the first air cylinder S1 is supercharging aerating air cylinder, selects the first air cylinder S2 for replenishing the aerating air cylinder; When returning step S100, can select the first air cylinder S2 for pressing the aerating air cylinder certainly, selecting the second air cylinder T2 is supercharging aerating gas storage, selects the second air cylinder T3 for replenishing the aerating air cylinder, by repeatedly repeatedly above-mentioned steps the CNG in each air cylinder can be exported.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (12)
1. the pipe-line system of a hydraulic type CNG air entraining substation, comprise booster body, filling machine, it is characterized in that, also comprise distributing valve, the first air cylinder group and the second air cylinder group, the described first air cylinder group comprises a plurality of first air cylinders, and the described second air cylinder group comprises a plurality of second air cylinders; The output terminal of described first air cylinder is connected with first inlet opening of described distributing valve by the first output control valve, the output terminal of described second air cylinder is connected with second inlet opening of described distributing valve by the second output control valve, and first delivery outlet of described distributing valve and second delivery outlet are connected with the low pressure port and the high-pressure mouth of filling machine respectively; The pressurized end of the pressurized end of described first air cylinder and second air cylinder is connected with the boost port of described booster body by first supercharger control valve and second supercharger control valve respectively;
Distributing valve has first state and second state, at described first state, first inlet opening and second inlet opening are connected with first delivery outlet and second delivery outlet respectively, and at described second state, first inlet opening and second inlet opening are connected with second delivery outlet and first delivery outlet respectively.
2. the pipe-line system of hydraulic type CNG air entraining substation according to claim 1 is characterized in that, the pressurized end of the pressurized end of described first air cylinder and second air cylinder is connected with the refluxing opening of described booster body by recycle control valve respectively.
3. the pipe-line system of hydraulic type CNG air entraining substation according to claim 1, it is characterized in that, a plurality of described first supercharger control valves are connected with the boost port and the refluxing opening of described booster body respectively by one first total supercharger control valve and one first total recycle control valve, and a plurality of described second supercharger control valves are connected with the boost port and the refluxing opening of described booster body respectively by one second total supercharger control valve and one second total recycle control valve.
4. control system is used to control the pipe-line system of claim 1,2 or 3 described hydraulic type CNG air entraining substations, it is characterized in that this control system comprises processing unit and performance element;
Described processing unit is used for pressing the aerating air cylinder certainly according to first air cylinder conduct of predetermined policy selection predetermined quantity, and second air cylinder of selecting predetermined quantity is as supercharging aerating air cylinder, and first selection result that will obtain sends to performance element;
Described performance element is used for according to first selection result, make described from pressing aerating air cylinder output terminal to be connected with first inlet opening of described distributing valve, described supercharging aerating air cylinder output terminal and pressurized end are connected with second inlet opening of described distributing valve and the boost port of booster body respectively, make distributing valve be in first state, make the booster body running.
5. control system according to claim 4 is characterized in that described control system also comprises pressure-detecting device, and described pressure-detecting device is used to detect the pressure of the inside of a bottle of supercharging aerating air cylinder;
Described processing unit can select at least one second air cylinder for replenishing the aerating air cylinder; During greater than predetermined value, described processing unit can send pressure signal up to standard to performance element at the pressure of the inside of a bottle of described supercharging aerating air cylinder;
Described performance element can be according to first selection result, make described from pressing aerating air cylinder output terminal to be connected with first inlet opening of described distributing valve, described supercharging aerating air cylinder pressurized end is connected with the boost port of described booster body, the output terminal that replenishes the aerating air cylinder is connected with second inlet opening of distributing valve, make distributing valve be in first state, make the booster body running; According to pressure signal up to standard, the output terminal that disconnect to replenish the aerating air cylinder is connected with pipeline between second inlet opening of described distributing valve, and the output terminal of supercharging aerating air cylinder is connected with second inlet opening of described distributing valve.
6. control system according to claim 5 is characterized in that,
Described control system also comprises the loine pressure detection device; Described loine pressure detection device is used to detect the pressure of second inlet opening of distributing valve, and sends line pressure signal to processing unit;
After making described supercharging aerating air cylinder output terminal and second inlet opening of described distributing valve be connected, at the pressure of second inlet opening during greater than predetermined value, described processing unit can send the tonifying Qi signal to performance element, during less than predetermined value, described processing unit can send to performance element and stop the tonifying Qi signal at the pressure of second inlet opening;
Described performance element can open the second output control valve that links to each other with the output terminal of additional aerating air cylinder according to the tonifying Qi signal; According to stopping the tonifying Qi signal, the second output control valve that links to each other with additional aerating air cylinder output terminal is closed.
7. according to claim 4,5 or 6 described control system, it is characterized in that this control system comprises the surplus detection device, described surplus detection device is used to detect the rock gas surplus in the supercharging aerating air cylinder;
Described processing unit also is used for according to the testing result of surplus detection device and predetermined strategy, second air cylinder of selecting predetermined quantity is as pressing the aerating air cylinder certainly, first air cylinder of selecting predetermined quantity is as supercharging aerating air cylinder, and second selection result that will obtain sends to performance element;
Described performance element is used for according to second selection result, make described from pressing aerating air cylinder output terminal to be connected with second inlet opening of described distributing valve, described supercharging aerating air cylinder output terminal and pressurized end are connected with first inlet opening of described distributing valve and the boost port of booster body respectively, make distributing valve be in second state, make the booster body running.
8. control system according to claim 7 is characterized in that,
Described loine pressure detection device also is used to detect the pressure of first inlet opening of distributing valve;
Described processing unit can also select at least one first air cylinder for replenishing the aerating air cylinder; During greater than predetermined value, described processing unit can send pressure signal up to standard to performance element at the pressure of the inside of a bottle of described supercharging aerating air cylinder; After making described supercharging aerating air cylinder output terminal and first inlet opening of described distributing valve be connected, at the pressure of first inlet opening during greater than predetermined value, described processing unit can send the tonifying Qi signal to performance element, during less than predetermined value, described processing unit can send to performance element and stop the tonifying Qi signal at the pressure of first inlet opening;
Described performance element can be according to second selection result, make described from pressing aerating air cylinder output terminal to be connected with second inlet opening of described distributing valve, described supercharging aerating air cylinder pressurized end is connected with the boost port of described booster body, the output terminal that replenishes the aerating air cylinder is connected with first inlet opening of distributing valve, make distributing valve be in second state, make the booster body running; According to pressure signal up to standard, the output terminal that disconnect to replenish the aerating air cylinder is connected with pipeline between first inlet opening of distributing valve, and the output terminal of supercharging aerating air cylinder is connected with first inlet opening of distributing valve; According to the tonifying Qi signal, the first output control valve that links to each other with the output terminal of additional aerating air cylinder is opened; According to stopping the tonifying Qi signal, the first output control valve that links to each other with additional aerating air cylinder output terminal is closed.
9. a hydraulic type CNG air entraining substation comprises pipe-line system and control system, it is characterized in that,
Described pipe-line system comprises booster body, filling machine, the first air cylinder group and the second air cylinder group, and the described first air cylinder group comprises a plurality of first air cylinders, and the described second air cylinder group comprises a plurality of second air cylinders; The output terminal of described first air cylinder is connected with first inlet opening of described distributing valve by the first output control valve, and the output terminal of described second air cylinder is connected with second inlet opening of described distributing valve by the second output control valve; The pressurized end of the pressurized end of described first air cylinder and second air cylinder is connected with the boost port of described booster body by first supercharger control valve and second supercharger control valve respectively;
Distributing valve has first state and second state, at described first state, first inlet opening and second inlet opening are connected with first delivery outlet and second delivery outlet respectively, at described second state, first inlet opening and second inlet opening are connected with second delivery outlet and first delivery outlet respectively, and first delivery outlet of described distributing valve and second delivery outlet are connected with the low pressure port and the high-pressure mouth of filling machine respectively;
Described control system is each described control system of claim 4-8.
10. the controlling method of a hydraulic type CNG air entraining substation, described hydraulic type CNG air entraining substation comprises pipe-line system, described pipe-line system comprises booster body, filling machine, the first air cylinder group and the second air cylinder group, the described first air cylinder group comprises a plurality of first air cylinders, and the described second air cylinder group comprises a plurality of second air cylinders; The output terminal of described first air cylinder is connected with first inlet opening of described distributing valve by the first output control valve, and the output terminal of described second air cylinder is connected with second inlet opening of described distributing valve by the second output control valve; The pressurized end of the pressurized end of described first air cylinder and second air cylinder is connected with the boost port of described booster body by first supercharger control valve and second supercharger control valve respectively; Distributing valve has first state and second state, at described first state, first inlet opening and second inlet opening are connected with first delivery outlet and second delivery outlet respectively, at described second state, first inlet opening and second inlet opening are connected with second delivery outlet and first delivery outlet respectively, and first delivery outlet of described distributing valve and second delivery outlet are connected with the low pressure port and the high-pressure mouth of filling machine respectively;
It is characterized in that,
Described controlling method may further comprise the steps:
S100, first air cylinder of selecting predetermined quantity is as pressing the aerating air cylinder certainly, and second air cylinder of selecting predetermined quantity is as supercharging aerating air cylinder; Make described from pressing aerating air cylinder output terminal to be connected with first inlet opening of described distributing valve, described supercharging aerating air cylinder output terminal and pressurized end are connected with second inlet opening of described distributing valve and the boost port of booster body respectively, make distributing valve be in first state, make the booster body running;
S200, when the rock gas surplus in second air cylinder of selecting was less than predetermined value, second air cylinder of selecting predetermined quantity was as pressing the aerating air cylinder certainly, and first air cylinder of selecting predetermined quantity is as supercharging aerating air cylinder; Make described from pressing aerating air cylinder output terminal to be connected with second inlet opening of described distributing valve, described supercharging aerating air cylinder output terminal and pressurized end are connected with first inlet opening of described distributing valve and the boost port of booster body respectively, make distributing valve be in second state, make the booster body running; When the rock gas surplus is less than predetermined value in first air cylinder of selecting, return step S100.
11. the controlling method of hydraulic type CNG air entraining substation according to claim 10 is characterized in that, described step S100 may further comprise the steps:
S110, first air cylinder of selecting predetermined quantity be as from pressing the aerating air cylinder, and second air cylinder of selecting predetermined quantity is as supercharging aerating air cylinder, and select at least one second air cylinder for replenishing the aerating air cylinder; Make described from pressing aerating air cylinder output terminal to be connected with first inlet opening of described distributing valve, described supercharging aerating air cylinder pressurized end is connected with the boost port of described booster body, the output terminal that replenishes the aerating air cylinder is connected with second inlet opening of described distributing valve, make distributing valve be in first state, make the booster body running;
S120, at the pressure of the inside of a bottle of described supercharging aerating air cylinder during greater than predetermined value, the output terminal that disconnects described additional aerating air cylinder is connected with pipeline between second inlet opening of described distributing valve, and the output terminal of supercharging aerating air cylinder is connected with second inlet opening of distributing valve.
12. the controlling method of hydraulic type CNG air entraining substation according to claim 11 is characterized in that, in step S120, also comprises:
At the pressure of second inlet opening of distributing valve during greater than predetermined value, the second output control valve that will link to each other with additional aerating air cylinder output terminal is opened, during less than predetermined value, the second output control valve that will link to each other with additional aerating air cylinder output terminal is closed at the pressure of second inlet opening.
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| CN201010115958.7A CN101813237B (en) | 2010-02-11 | 2010-02-11 | Hydraulic CNG (Compressed Natural Gas) gas filling substation and pipeline system, control system and control method thereof |
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| CN101992750A (en) * | 2010-10-27 | 2011-03-30 | 四川金科环保科技有限公司 | CNG delivery trailer structure suitable for single and double-line gas filling substations |
| CN102011936A (en) * | 2010-10-27 | 2011-04-13 | 四川金科环保科技有限公司 | Hydraulic bottle pushing double-line gas filling substation |
| US10851944B2 (en) | 2012-01-31 | 2020-12-01 | J-W Power Company | CNG fueling system |
| CN102878427A (en) * | 2012-09-18 | 2013-01-16 | 诺威尔（天津）能源装备股份有限公司 | Natural gas substation system and compressor pressure-regulating grade-skipping energy-saving control method thereof |
| CN102878427B (en) * | 2012-09-18 | 2014-01-01 | 诺威尔（天津）能源装备股份有限公司 | Natural gas substation system and compressor pressure-regulating grade-skipping energy-saving control method thereof |
| CN102954351A (en) * | 2012-11-16 | 2013-03-06 | 中国石油天然气股份有限公司 | Skid-mounted gas-liquid separate transportation and gas collection device |
| CN102954351B (en) * | 2012-11-16 | 2015-10-28 | 中国石油天然气股份有限公司 | Skid-mounted gas-liquid separate delivery pressurization gas collecting device |
| CN102927437A (en) * | 2012-11-28 | 2013-02-13 | 盛泽能源技术有限公司 | Efficient and energy-saving type large-discharge double-line hydraulic gas substation system |
| CN104421610B (en) * | 2013-08-22 | 2016-06-01 | 安瑞科(廊坊)能源装备集成有限公司 | Compressed natural gas filling method and refueling system |
| CN104421610A (en) * | 2013-08-22 | 2015-03-18 | 安瑞科(廊坊)能源装备集成有限公司 | Compressed natural gas filling method and filling system |
| CN106481972A (en) * | 2015-08-31 | 2017-03-08 | 泰恩博能燃气设备（天津）股份有限公司 | Gas station and its power set and control method |
| CN106481972B (en) * | 2015-08-31 | 2019-02-15 | 泰恩博能燃气设备（天津）股份有限公司 | Gas station and its power device and control method |
| CN105889755A (en) * | 2016-05-29 | 2016-08-24 | 济南科慧页岩化工技术有限公司 | System and method for capturing and utilizing CO2 generated in metallurgical process |
| CN108105587A (en) * | 2017-12-28 | 2018-06-01 | 天津良华新能源科技有限公司 | A kind of hydraulic type CNG air entraining substation control system and control method |
| CN114234048A (en) * | 2021-12-13 | 2022-03-25 | 中国核电工程有限公司 | Pressure maintaining type compressed air storage and supply device for nuclear power station |
| CN114234048B (en) * | 2021-12-13 | 2024-02-06 | 中国核电工程有限公司 | Pressure-maintaining type compressed air storage and supply device for nuclear power station |
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