CN104676242A - Mobile rapid compressed air charging method and device - Google Patents
Mobile rapid compressed air charging method and device Download PDFInfo
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- CN104676242A CN104676242A CN201510069914.8A CN201510069914A CN104676242A CN 104676242 A CN104676242 A CN 104676242A CN 201510069914 A CN201510069914 A CN 201510069914A CN 104676242 A CN104676242 A CN 104676242A
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Abstract
The invention discloses a mobile rapid compressed air charging device. The mobile rapid compressed air charging device consists of a mobile carrier, a power supply part, an efficient air charging machine, a cooling part, a high-pressure air storage device, a control pipeline, an antiexplosion box and supported equipment of an air charged device, wherein the mobile carrier is a vehicle chassis or a trailer chassis for bearing other parts; the power supply part is connected with the efficient air charging machine and the cooling part; the efficient air charging machine is connected with the high-pressure air storage device via the control pipeline; the high-pressure air storage device is connected with the support equipment of the air charged device via the control pipeline; the efficient air charging machine is also connected with the support equipment of the air charged device via the control pipeline; the support equipment of the air charged device is installed in the antiexplosion box. The mobile rapid compressed air charging method comprises six major steps. The mobile rapid compressed air charging device and method are applicable to minitype mobile rescue and field fight, is suitable for national conditions of China and the practical need of charging air respirators in the field, and has obvious military benefit and social benefit.
Description
Technical field
The invention belongs to movable air compression quick inflating technique field, be specifically related to a kind of pressurized air fast aeration method and device of movable type, it a kind ofly exceedes the method and apparatus that atmospheric pressure device carries out pressurized air fast aeration to positive-pressure air respirator gas cylinder etc.
Background technique
Positive-pressure air respirator relies on air gas cylinder to provide clean air to breathe for personnel; the injury being subject to the dangerous substance such as chemistry, biology is avoided for the protection of personnel's respiratory apparatus, eyes, face; avoid sucking radioactive contamination air to the injury of personnel, be applicable to that the raw pollution level of coring is serious, pollution sources kind is not clear or use in the scene such as environmental hypoxia.Positive-pressure air respirator currently carries out individual isolation type respiratory protection in the world and mainly equip, because positive-pressure air respirator has positive pressure ventilation, breathes that comfortable, safe and reliable, dressing is quick, simple operation and other advantages, the traditional defense such as respirator, the harness of oxygen-producing type respiratory protection equipment will be replaced gradually in some occasion, and use and there is occasion widely.
The important bottleneck problem that restriction air respiratorresuscitator uses, the supply problem of the compressed air gas source breathed for personnel exactly.The inflation method of librarian use in the past, is rely on the air compressor inflation being located at fixed-site, makes pressurized air Filling apparatus to the inflating gas cylinder of resuscitation apparatus.But along with the quantity of onsite application air respiratorresuscitator and frequency constantly increase, in order to ensure carrying out smoothly of overall work, rear security force uses traditional method to the air respiratorresuscitator inflating gas cylinder using up breathing gas, obviously be not suitable with some emergency management and rescue requirements of one's work, limit the use of this personal protective equipment of air respiratorresuscitator.For this reason, some unit, by air compressor, removes and inflates to field.There is the research to all kinds of gas-filled pump outside Present Domestic, have the improvement to natural gas supply system, safe and reliable Journal of Sex Research being devoted to raising system etc.The vehicle-mounted fire-fighting inflation equipment with the large-scale mobile that uses in the fire-fighting and rescue of domestic city, solves on-the-spot air feed problem preferably abroad.The shortcomings such as but it involves great expense, user cost is high, and be not suitable for equipment of small motor rescue and field and execute the task actual demand is inflated to air respiratorresuscitator.
Inventor is realizing finding in process of the present invention that the defect of prior art is:
When performing emergency management and rescue task, field condition proposes very high requirement to air respiratorresuscitator inflation to charging efficiency, need air respiratorresuscitator each gas cylinder to substitute the bad for the good within a short period of time, multiple gas cylinder can be filled within a period of time and in gas cylinder air quality better.And present case, pressurized air charger is that the inflationtime of every gas cylinder (6.8L) is generally at about 8 minutes.Can heat be produced in gas replenishment process, have impact, and the apparatus overheat that works long hours to inflation gas cylinder, generally take continuous operation orderly closedown cooling 10-20 minute after 1 hour.These have impact on the efficiency of inflation.
For giving air respiratorresuscitator inflating gas cylinder efficiency high in satisfied on-the-spot a period of time in the wild, need solution two subject matters further: one is short as far as possible to each inflating gas cylinder time under guarantee safety and gas cylinder prerequisite in working life.Two is make charger continuous working period extend within a certain period of time, can fill multiple gas cylinder.To consider simultaneously its cost expense and user cost not high, be suitable for equipment of small motor rescue and the feature such as field action.Have no solution preferably at present.
In order to improve the efficiency that field emergency rescue site is inflated air respiratorresuscitator, efficient guarantee air respiratorresuscitator uses further, the pressurized air inflation of field movable formula must be followed fast, low consumption, safety, efficient principle, this is also background technique requirement of the present invention.
The present invention be applicable to field emergency rescue site to air respiratorresuscitator fast, safety, efficiently inflation method and device, its method is also applicable to field and exceedes atmospheric pressure device to other and carry out pressurized air fast aeration.
Summary of the invention
Technology of the present invention is dealt with problems: overcome the deficiency of existing field inflation to emergent on-the-spot fast aeration, improve charging efficiency, solves air respiratorresuscitator each gas cylinder and to substitute the bad for the good, can fill within a period of time within a short period of time the problem of multiple gas cylinder.Invention one is field fast aeration method and apparatus safely and efficiently.
Technological scheme of the present invention:
(1) concrete resolving ideas
For problem one, how solving single air cylinder, to be full of the pressurized gas time short as far as possible.Analyzing current practice is utilize air compressor to inflate, and compresses step by step, make air in air respiratorresuscitator gas cylinder reach 30MPa pressure, and be full of gas cylinder capacity atmospheric air.If the time that its single air cylinder is full of gas is T, compression time atmosphere gas being compressed to 30MPa gas is T1, and the filling time of filling the 30MPa gas of full gas cylinder capacity is T2, i.e. T=T1+T2.Through experimental research, for under giving the short as far as possible constraint conditio of single air cylinder inflationtime, we adopt the method for isobaric convection current tonifying Qi, the pressurized air that 30MPa pressure is housed directly is filled to gas cylinder, omit the T1 time, reach single air cylinder to be full of the gas time and only to need the filling time to be T2, accomplish that the time is short as far as possible.Namely high-pressure gas cylinder group capacious is adopted directly to carbon fiber gas cylinder " filling ", inflator work ahead can be equivalent to.
For problem two, how within a period of time, to fill multiple gas cylinder.Because in fast aeration process, pressure change can make gas cylinder produce heat, for ensureing safety and gas cylinder working life, temperature variation when we will control inflating gas cylinder.The current apparatus overheat that works long hours, generally take continuous operation after 1 hour orderly closedown cooling 10-20 minute.We take power generating ratio cool time, extension device operating time, inflate to multiple gas cylinder simultaneously simultaneously, really realize fast aeration.
As known from the above, the gas charging system that charging efficiency is high should be: huge discharge inflator+continual work of jumbo air cylinder group+inflator.
Through carrying out experimental research and numerical simulation to fast aeration process, because the temperature effect in gas replenishment process affects serviceability temperature restriction and the inflation rate of gas cylinder simultaneously during fast aeration, therefore while shortening inflationtime, how control temperature effect just becomes is improved charging efficiency and the key guaranteeing gas cylinder safely.Although experiment shows that improving bleed pressure can increase inflation rate, increases and has added operating cost.Improve inflation rate and increase between source of the gas gas storage volume and have a cost analysis optimum value, this needs to analyze in light of the circumstances.
Use flowing law and the seal container temperature changing regularity of pipeline inner fluid in mass-changed system thermodynamics and gas dynamics theoretical research seal container fast aeration process.If initial time, the gas parameter in container is p1, T1, m1.Open valve, after the inflation t time, gas in container parameter is pt, Tt, mt.After gas charging system itself is determined, before and after inflation, the change of temperature is relevant with pt/p1, has nothing to do with the size of container itself.This is because gas replenishment process can be interpreted as physical essence and carry out adiabatic compression to former gas in a reservoir, and mix the synthesis result of these two processes mutually with insufflation gas.Experiment shows that the temperature notable change in fast aeration process mainly appears at the incipient stage, as long as illustrate that the temperature effect weakening the incipient stage just can control the temperature effect in whole gas replenishment process.
Concrete measure: one is the downward trend controlling inflation actual pressure ratio, even if bleed pressure step variation, effectively can avoid the container temperature rise caused by " pressure waste ", thus vessel temp is comparatively declined to a great extent without in control situation.Two is pass through radiating and cooling.Adopt for this reason and control the method for each device temperature increasing degree, power generating ratio cool time, the extension device operating time, inflate to multiple gas cylinder simultaneously simultaneously, really realize fast aeration.
(2) concrete scheme
1) the pressurized air quick air-inflating apparatus of a kind of movable type of the present invention, this device is by moving carrier, power pack, efficient inflator (containing filtration system), cooling part, high-pressure gas device, pilot line, explosion-proof tank and be inflated matched with devices equipment and form; Position annexation between them is: moving carrier is that vehicle chassis or trailer chassis carry other parts thereon; Power pack is connected with part of lowering the temperature with efficient inflator; Efficient inflator is connected with high-pressure gas device by pilot line; High-pressure gas device by pilot line be inflated matched with devices equipment and be connected; Efficient inflator by pilot line also be inflated matched with devices equipment and be connected; Inflator corollary equipment is contained in explosion-proof tank.
Described moving carrier, for loading the remaining part of this device, can be vehicle chassis rear section or trailer chassis.
The required power supply of described power pack generator running, is generally diesel generator.
Described efficient inflator (containing filtration system) for by air compressing, lower the temperature, be filtered into qualified pressurized air and be filled into high pressure carbon fiber bottle.
Described cooling part comprises fan, atomization spray cap and water feed apparatus etc.Atomization spray cap is above fan air outlet, and inflator body, high-pressure gas device are aimed in air outlet.The water being blown afloat shower nozzle atomization by fan forms fine cascade and wind dispels the heat to equipment, plays the effect of cooling.
Described high-pressure gas device is the air cylinder composition of the different capabilities that high-pressure air is housed.
Described pilot line comprises all kinds of pressure gauge, pressure transmitter, delivery valve, bleed valve, gas charging valve, outlet valve, stop valve etc. and the part to these component controls.
Described explosion-proof tank is used to and is inflated gas cylinder and provides protection, prevents the chamber installation of gas bottle explosion.
The described matched with devices equipment that is inflated is for being fixedly inflated gas cylinder when inflating, conveniently can taking and being inflated the auxiliary device of gas cylinder.
2) the pressurized air fast aeration method of a kind of movable type of the present invention, the method concrete steps are as follows:
Step one: be full of pressurized gas to high-pressure gas cylinder in advance.Efficient inflator is connected with high-pressure gas cylinder, is full of pressurized gas to high-pressure gas cylinder in advance.High-pressure gas cylinder is the air cylinder series parallel connection composition of multiple larger capacities that high-pressure air is housed.Efficient inflator adopts circulating tonifying Qi to high-pressure gas cylinder, namely charges one and is inflated gas cylinder and fills the next one again and be inflated gas cylinder.Idiographic flow is shown in Fig. 1.
Step 2: high-pressure gas cylinder adopts the method for approximate isobaric convection current tonifying Qi to being inflated inflating gas cylinder.By high-pressure gas cylinder be inflated gas cylinder and be connected, adopt the method for approximate isobaric convection current tonifying Qi, the gas of high-pressure gas cylinder directly filled fast to being inflated gas cylinder.Wherein in high-pressure gas cylinder gas pressure a little more than being inflated the final required pressure of gas cylinder.
Step 3: high-pressure gas cylinder and multiple gas cylinder that is inflated adopt parallel-connection structure to inflate.When give multiple need to be inflated inflating gas cylinder time, high-pressure gas cylinder be inflated gas cylinder and adopt parallel-connection structure to carry out multiplely being inflated inflating gas cylinder.When an air cylinder underpressure of high-pressure gas cylinder, pilot line is switched to another high-pressure gas cylinder to being inflated inflating gas cylinder at once.
Step 4: when all air cylinder internal pressures of high-pressure gas cylinder are all lower than when being inflated the standard atmosphere pressure of gas cylinder, pilot line is switched to efficient inflator directly to being inflated inflating gas cylinder.Efficient inflator is parallel-connection structure with being inflated gas cylinder, inflates simultaneously and is inflated gas cylinder to multiple.
Step 5: during efficient inflator work, utilize air-cooled water-atomization cooling method, all devices is dispelled the heat, air outlet is towards working equipment, rely on fan running to be formed to the air stream in equipment compartment direction simultaneously, air quality can be reached in cleaning equipment cabin and to lower the temperature the object of lengthening working hours for equipment.
Step 6: be control temperature effect, when efficient inflator is inflated to empty to high-pressure gas cylinder inflation and pressurized gas, adopt pressure regulation temperature control method, by the flow (or small capacity gas cylinder of connecting before inflator) of the charge-air mass of the throttle valve control incipient stage of pilot line, to reduce incipient stage pressure Rapid Variable Design thus to reach the quick rising of bulk temperature reduced in inflation.
Advantage and effect: the pressurized air fast aeration method of a kind of movable type of the present invention and device.Owing to using gas storage for gas integral, exhaust ventilation, atomization wind cooling temperature lowering, regulating the technology such as pressure temperature control, inflated by the method, the fast aeration of field to inflator can be realized, more than 5-7 times is improved than utilizing separately inflator charging efficiency, reach inflation more efficient, safety, also can purify the air quality of small space inflation.
This invention will improve the technical support level of China's respiratory protection equipment, small-sized movable inflator meets needs that are light-duty, motor-driven, rapid field guarantee, significantly improve scope and frequency that air respiratorresuscitator uses at China field condition, the breathing safety of personnel in the biochemical contingency operation of the raw core such as emergency management and rescue, antinucleus bioterrorism of new stage coring can be met, be applicable to equipment of small motor rescue and Field Operational, be suitable for the actual demand that China's national situation and field are inflated air respiratorresuscitator, its military benefit, social benefit are outstanding.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide the further understanding to the embodiment of the present invention, forms a application's part, does not form the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1: to high-pressure gas device inflation method flow chart
Fig. 2: of the present invention to air respiratorresuscitator gas cylinder fast aeration method flow diagram
Fig. 3: quick air-inflating apparatus composition schematic diagram of the present invention
Fig. 4: inflator position view
In figure, symbol description is as follows:
1, gas cylinder is inflated
2, pilot line
3, efficient inflator
4, high-pressure gas cylinder
5, fan (arrow represents that air inlet flows to)
Embodiment
For making the object of the embodiment of the present invention, technological scheme and advantage clearly understand, below in conjunction with accompanying drawing 2, the embodiment of the present invention is described in further detail.
embodiment 1:
The present embodiment provides a kind of pressurized air quick air-inflating apparatus of movable type.
Its device as shown in Figure 3, Figure 4, main composition by moving carrier trailer chassis, power pack, efficient inflator 3 (containing filtration system), cooling part, at least 2 high-pressure gas cylinders 4 high-pressure gas device, pilot line 2, explosion-proof tank and be inflated the corollary equipments such as gas cylinder 1 and form.
Its working principle is, after ambient air compression is boosted to 0-30MPa by efficient inflator 3, can be delivered to high-pressure gas cylinder 4 respectively by pilot line 2, be inflated gas cylinder 1.The pressurized air of pressure 30MPa also can be delivered to by pilot line 2 and be inflated gas cylinder 4 by high-pressure gas cylinder 4.Be inflated gas cylinder 4 to be contained in explosion-proof tank.
Pressure transmitter can change pressure signal into electrical signal and send digital display controller to, and bleed valve is for residual air in removal system after end-of-job.
Wherein: efficient inflator 4 also comprises filtration system, blowdown, vent systems etc.The maximum exhaust pressure 33MPa of efficient inflator 4, air displacement > 200L/min, air-cooled.The quantity of high-pressure gas cylinder 42, single high-pressure gas cylinder 4 water capacity 50L, rated pressure 30MPa.
embodiment 2:
The invention provides a kind of fast aeration method, to give 6.8L air respiratorresuscitator inflating gas cylinder for concrete instance, be described.Be embodied as: see Fig. 1, Fig. 2,
1, inflate to vehicle-mounted air cylinder with efficient inflator 3
(1) delivery valve of the efficient inflator 3 on opening operation panel and high-pressure gas cylinder 4 pipeline valve, close other valves.
(2) open equipment side door, open the cylinder valve be inflated on gas cylinder 1 that will inflate, starting efficient inflator 3 can inflate in vehicle-mounted air cylinder, equipment autostop after pressure arrival 30MPa.Namely a high-pressure gas cylinder 4 is full of.
(3) continue inflation and repeat above-mentioned steps, all the other high-pressure gas cylinders 4 can be full of.After shutdown, close the cylinder valve that is inflated on gas cylinder 1, open bleed valve and bleed off residual air in system, the blowdown valve opened successively on efficient inflator 3 is drained sewage, equipment is returned to original state, end-of-job.
2, inflate to being inflated gas cylinder 1 with high-pressure gas cylinder 4
(1) open explosion-proof door, take out inflated hose, gas cylinder 1 will be inflated and be connected on gas-charging connection, connect and want reliable, open cylinder valve and stop valve, close outlet valve, put into case explosion-proof vent by the gas filling bottle of 6.8L by what connect and close chamber door.
(2) the air cylinder pipeline valve on the cylinder valve of vehicle-mounted air cylinder and control panel and exportable high-pressure air is opened.Parallel connection can fill the gas filling bottle of 2-4 6.8L simultaneously.
(3), after end-of-job, close air cylinder cylinder valve, residual air in emptying system, returns to original state by equipment.
3, inflate to being inflated gas cylinder 1 with efficient inflator 3
When high-pressure gas cylinder 4 internal pressure is lower than when being inflated pressure needed for gas cylinder 1, start efficient inflator 3 and inflate to being inflated gas cylinder 1.
(1) delivery valve of the efficient inflator 3 on opening operation panel and corresponding gas charging valve, close other valves, and starting efficient inflator 3 can be inflated inflation in gas cylinder 1 to 6.8L, equipment autostop after pressure arrival 30MPa.
(2) after shutting down, take out and be inflated gas cylinder 1, close the stop valve be inflated on the cylinder valve of gas cylinder 1 and gas-charging connection, open the outlet valve exhaust on gas-charging connection, can unload after exhaust and be inflated gas cylinder 1.
(3) continue inflation and repeat above-mentioned steps, open bleed valve, bleed off residual air in system after inflation, the blowdown valve opened successively on efficient inflator 3 is drained sewage, equipment is returned to original state, end-of-job.
When efficient inflator 3 works, start air-cooled atomization cooling part.The cascade utilizing fan 5 to add shower nozzle atomization dispels the heat to all devices, air outlet towards the body of efficient inflator 3, power pack as diesel engine body, high-pressure gas cylinder 4, rely on fan 5 to operate to be formed to the air stream in equipment compartment direction simultaneously, air quality can be reached in cleaning equipment cabin and lowers the temperature for equipment and reach the object of lengthening working hours.Start fan 5, rely on fan 5 running formation to the air stream in equipment compartment direction, air quality and the object for equipment cooling in cleaning equipment cabin can be reached simultaneously, ensure gas charging system long time continuous working.
When compressing high pressure gas is inflated to empty, control section by the flow of the charge-air mass of throttle valve control incipient stage, to reduce pressure Rapid Variable Design thus to reach the rising of the bulk temperature reduced in fast aeration.Before inflation starts in 15s (time calculates according to pneumatic volume and determines) control section by throttle valve by half-open set gradually maximum, control charge-air mass flow thus reach to be inflated gradually changing of container inner pressure, just can reduce the rising of bulk temperature in fast aeration.
Claims (2)
1. a portable pressurized air quick air-inflating apparatus, is characterized in that: this device is by moving carrier, power pack, efficient inflator, cooling part, high-pressure gas device, pilot line, explosion-proof tank and be inflated matched with devices equipment and form; Moving carrier is that vehicle chassis or trailer chassis carry other parts thereon; Power pack is connected with part of lowering the temperature with efficient inflator; Efficient inflator is connected with high-pressure gas device by pilot line; High-pressure gas device by pilot line be inflated matched with devices equipment and be connected; Efficient inflator by pilot line also be inflated matched with devices equipment and be connected; Inflator corollary equipment is contained in explosion-proof tank;
Described moving carrier, for loading the remaining part of this device, is vehicle chassis rear section or trailer chassis;
The required power supply of described power pack generator running is diesel generator;
Described efficient inflator is used for air compressing, lower the temperature, be filtered into qualified pressurized air is filled into high pressure carbon fiber bottle;
Described cooling part comprises fan, atomization spray cap and water feed apparatus; Atomization spray cap is above fan air outlet, and inflator body, high-pressure gas device are aimed in air outlet; The water being blown afloat shower nozzle atomization by fan forms fine cascade and wind dispels the heat to equipment, plays the effect of cooling;
Described high-pressure gas device is the air cylinder composition of the different capabilities that high-pressure air is housed;
Described pilot line comprises all kinds of pressure gauge, pressure transmitter, delivery valve, bleed valve, gas charging valve, outlet valve, stop valve and the part to these component controls;
Described explosion-proof tank is used to and is inflated gas cylinder and provides protection, prevents the chamber installation of gas bottle explosion;
The described matched with devices equipment that is inflated is for being fixedly inflated gas cylinder when inflating, conveniently taking and being inflated the auxiliary device of gas cylinder.
2. a portable pressurized air fast aeration method, is characterized in that: the method concrete steps are as follows:
Step one: efficient inflator is connected with high-pressure gas cylinder, is full of pressurized gas to high-pressure gas cylinder in advance; High-pressure gas cylinder is a plurality of jumbo air cylinder series parallel connection composition that high-pressure air is housed, and efficient inflator adopts circulating tonifying Qi to high-pressure gas cylinder, namely charges one and is inflated gas cylinder and fills the next one again and be inflated gas cylinder;
Step 2: by high-pressure gas cylinder be inflated gas cylinder and be connected, adopt the method for approximate isobaric convection current tonifying Qi, the gas of high-pressure gas cylinder directly filled fast to being inflated gas cylinder, wherein in high-pressure gas cylinder gas pressure a little more than being inflated the final required pressure of gas cylinder;
Step 3: when give a plurality of need to be inflated inflating gas cylinder time, high-pressure gas cylinder be inflated gas cylinder and adopt parallel-connection structure to being inflated inflating gas cylinder; When an air cylinder underpressure of high-pressure gas cylinder, pilot line is switched to another high-pressure gas cylinder to being inflated inflating gas cylinder at once;
Step 4: when all air cylinder internal pressures of high-pressure gas cylinder are all lower than when being inflated the standard atmosphere pressure of gas cylinder, pilot line is switched to efficient inflator directly to being inflated inflating gas cylinder; Efficient inflator is parallel-connection structure with being inflated gas cylinder, inflates simultaneously and is inflated gas cylinder to a plurality of;
Step 5: during efficient inflator work, utilize air-cooled water-atomization cooling method, all devices is dispelled the heat, air outlet is towards working equipment, rely on fan running to be formed to the air stream in equipment compartment direction simultaneously, to reach in cleaning equipment cabin air quality and to lower the temperature the object of lengthening working hours for equipment;
Step 6: be control temperature effect, when efficient inflator is inflated to empty to high-pressure gas cylinder inflation and pressurized gas, adopt pressure regulation temperature control method, by the flow of the charge-air mass of the throttle valve control incipient stage of pilot line, to reduce incipient stage pressure Rapid Variable Design thus to reach the quick rising of bulk temperature reduced in inflation.
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| CN104676242B CN104676242B (en) | 2017-01-11 |
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| CN111982544A (en) * | 2020-08-20 | 2020-11-24 | 南京中车浦镇城轨车辆有限责任公司 | Motor train unit pressurization air supply test device |
| CN112013266A (en) * | 2020-07-06 | 2020-12-01 | 温州市立捷体育用品有限公司 | Inflation method |
| CN112240483A (en) * | 2020-09-16 | 2021-01-19 | 传孚科技（厦门）有限公司 | Gas station for providing compressed air to gas storage device and control method thereof |
| CN113483352A (en) * | 2021-07-08 | 2021-10-08 | 山东劳动职业技术学院（山东劳动技师学院） | Air compression combustion system with variable compression ratio |
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| Publication number | Publication date |
|---|---|
| CN104676242B (en) | 2017-01-11 |
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