CN103879946A - Fuel injection method for oil tank with elastic bag - Google Patents
Fuel injection method for oil tank with elastic bag Download PDFInfo
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- CN103879946A CN103879946A CN201410131288.6A CN201410131288A CN103879946A CN 103879946 A CN103879946 A CN 103879946A CN 201410131288 A CN201410131288 A CN 201410131288A CN 103879946 A CN103879946 A CN 103879946A
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Abstract
The invention belongs to the technical field of fuel injection and relates to a fuel injection method for an oil tank with an elastic bag. The oil tank is filled with fuel, gas in the elastic bag is exhausted, then fuel injection to the oil tank with the elastic bag is achieved through the method that the elastic bag is inflated with a certain amount of inert gas which serves as a preserved gas cushion, after being preserved, the gas cushion can ensure that after the fuel is injected, in the long-term storage process of the oil tank, pressure in the oil tank is adjusted through a safety valve connected with the elastic bag along with variation of environment temperature, namely, when the temperature of the oil tank is raised, the pressure reaches a threshold of the safety valve, and the safety valve automatically exhausts the gas in the gas cushion to keep pressure in the oil tank stable, so that influence of variation of the environment temperature on the pressure inside the oil tank can be overcome.
Description
Technical field
The present invention relates to fuel filling technical field, be specifically related to a kind of fuel filling method containing flexible bag fuel tank.
Background technology
Fuel filling is the requisite operation that fuel is provided for power system before missile flight.According to the difference of Oiltank structure, the method for guided missile being carried out to fuel filling is also different.For the difference of fuel tank internal structure, be divided into containing flexible bag fuel tank with not containing flexible bag fuel tank.Also there is no at present a kind of method for carrying out fuel filling to containing flexible bag fuel tank.
Summary of the invention
(1) technical matters that will solve
The technical problem to be solved in the present invention is: the high fuel filling method containing flexible bag fuel tank of the reliability how impact of the internal pressure of a kind of variation that can overcome ambient temperature on fuel tank is provided.
(2) technical scheme
In order to solve the problems of the technologies described above, the invention provides a kind of fuel filling method containing flexible bag fuel tank, comprise the following steps:
S1, connection filling gun and charging valve, open filling gun and charging valve, and described charging valve is positioned on the fuel tank of guided missile;
S2, connection drainage rifle and Outflow Valve, open drainage rifle and Outflow Valve, and described Outflow Valve is positioned on the fuel tank of guided missile;
S3, connection ventilation rifle and ventilating valve, described ventilating valve is connected with the flexible bag in fuel tank;
S4, rolling-airframe, be placed in the Outflow Valve of fuel tank directly over body, and drainage rifle is connected in fuel oil returnable with conduit with the outlet of ventilation rifle;
S5, unlatching topping up device, arrange fuel filling pressure;
S6, start refuel;
S7, flow out fuel oil and during without bubble, illustrate that the space oil outside the interior flexible bag of fuel tank is filled it up with when Outflow Valve exit, close Outflow Valve;
S8, open ventilating valve, by in fuel oil in the termination immersion fuel oil returnable on ventilation rifle connecting tube of end road, emerge without bubble in Preset Time section when the termination on ventilation rifle connecting tube of end road, the gas emptying in flexible bag is described, close ventilation rifle and charging valve;
S9, measurement fuel oil temperature, be designated as t;
S10, the reserved air cushion amount Δ V of calculating;
After S11, fuel oil by ventilation in rifle dry up, is again connected with ventilating valve, the termination on ventilation rifle connecting tube of end road is connected with high pressure nitrogen source of the gas, simultaneously by the outlet of drainage rifle with managing introducing graduated cylinder;
S12, adjusting high pressure nitrogen bleed pressure, open ventilating valve;
S13, open Outflow Valve, discharge the fuel oil of Δ V volume from relief outlet, reserved air cushion is complete, closes Outflow Valve, closes high pressure nitrogen source of the gas.
Preferably, in step S5, set fuel filling pressure is 0.1 ± 0.05Mpa.
Preferably, in step S10, calculate reserved air cushion amount Δ V according to following formula:
ΔV=at+b
Wherein: a represents the formula coefficient relevant to coefficient of expansion, the fuel tank capacity of fuel oil with b.
Preferably, in step S12, regulating high pressure nitrogen bleed pressure is 0.05MPa～0.1MPa.
(3) beneficial effect
The present invention by being filled with fuel oil in fuel tank, gas in emptying flexible bag, in flexible bag, be filled with the method for a certain amount of unreactable gas as reserved air cushion again, realize the fuel filling containing flexible bag fuel tank, after reserved air cushion, air cushion can ensure that the fuel tank after fuel up can be in the process of long term storage, along with the variation of ambient temperature, by the pressure in the safety valve regulating oil tank being connected with flexible bag, , in the time of fuel tank temperature rise, pressure reaches the threshold value of safety valve, safety valve discharges the gas in air cushion to keep tank pressure stable automatically, thereby the impact of the internal pressure of the variation that can overcome ambient temperature on fuel tank.
Brief description of the drawings
Fig. 1 is method flow diagram of the present invention;
Fig. 2 is the device annexation figure annotating in method of the present invention and exhaust process is used;
Fig. 3 is for reserving the device annexation figure that air cushion uses in method of the present invention.
Detailed description of the invention
For making object of the present invention, content and advantage clearer, below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.
As shown in Figure 1, the invention provides a kind of fuel filling method containing flexible bag fuel tank, comprise the following steps:
S0, guided missile 1 is fixed on load bearing equipment;
S1, connection filling gun 2 and charging valve 3, open filling gun 2 and charging valve 3, and described charging valve 3 is positioned on the fuel tank 4 of guided missile 1, and is not connected with flexible bag 5;
S2, connection drainage rifle 6 and Outflow Valve 7, open drainage rifle 6 and Outflow Valve 7, and described Outflow Valve 7 is positioned on the fuel tank 4 of guided missile 1, and is not connected with flexible bag 5;
S3, connection ventilation rifle 8 and ventilating valve 9, described ventilating valve 9 is connected with the flexible bag 5 in fuel tank 4;
S4, rolling-airframe, the Outflow Valve of fuel tank 47 is placed in to (to keep Outflow Valve to be just positioned at fuel tank highest point) directly over body, drainage rifle 6 and ventilation rifle 8 export and are connected in fuel oil returnable 10 (fuel oil overflowing while filling it up with for reclaiming), as shown in Figure 2 with conduit;
The topping up device 11 (existing installation) that S5, unlatching are connected with oil resevoir tank 14, it is 0.1 ± 0.05Mpa that fuel filling pressure is set;
S6, start refuel;
S7, flow out fuel oils and during without bubble, illustrate that the space oil outside the interior flexible bag 5 of fuel tank 4 is filled it up with when Outflow Valve 7 exits, close Outflow Valve 7;
S8, open ventilating valve 9, the termination on ventilation rifle 8 connecting tube of end roads is immersed in fuel oil returnable 10 interior fuel oils, examine ventilation gun barrel road tail end venting situation, when emerging without bubble in the termination on ventilation rifle 8 connecting tube of end roads in 1min, gas emptying in flexible bag 5 is described, closes ventilation rifle 8 and charging valve 3;
S9, measure fuel oil temperature, be designated as t (DEG C);
S10, calculate reserved air cushion amount Δ V according to following formula, i.e. total fuel oil volume of discharging, unit liter (L):
ΔV=at+b
Wherein: t represents the temperature of fuel up; A represents the formula coefficient relevant to coefficient of expansion, the fuel tank capacity of fuel oil with b, and the computation process of a and b is prior art.
S11, as shown in Figure 3, after being dried up, fuel oil in ventilation rifle 8 is again connected with ventilating valve 9, the termination on ventilation rifle 8 connecting tube of end roads is connected with high pressure nitrogen source of the gas 12, drainage rifle 6 is exported with pipe simultaneously and introduce graduated cylinder 13, graduated cylinder 13 can be measured the fuel oil volume of discharge; Wherein, on the pipeline between ventilation rifle 8 and high pressure nitrogen source of the gas 12, be also provided with pressure reducer 15.
S12, adjusting high pressure nitrogen source of the gas 12 pressure are 0.05MPa～0.1MPa, open ventilating valve 9;
S13, open Outflow Valve 7, discharge the fuel oil of Δ V volume from relief outlet, reserved air cushion is complete, closes Outflow Valve 7, closes high pressure nitrogen source of the gas 12.In the time of fuel tank temperature rise, pressure reaches the safety valve threshold value of (being connected with flexible bag, not shown), and safety valve is discharged the gas in air cushion automatically, then closes ventilating valve 9.
As can be seen from the above embodiments, the present invention by being filled with fuel oil in fuel tank, gas in emptying flexible bag, in flexible bag, be filled with the method for a certain amount of unreactable gas as reserved air cushion again, realize the fuel filling containing flexible bag fuel tank, after reserved air cushion, air cushion can ensure that the fuel tank after fuel up can be in the process of long term storage, along with the variation of ambient temperature, by the pressure in the safety valve regulating oil tank being connected with flexible bag, , in the time of fuel tank temperature rise, pressure reaches the threshold value of safety valve, safety valve discharges the gas in air cushion to keep tank pressure stable automatically, thereby the impact of the internal pressure of the variation that can overcome ambient temperature on fuel tank.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the technology of the present invention principle; can also make some improvement and distortion, these improvement and distortion also should be considered as protection scope of the present invention.
Claims (4)
1. containing a fuel filling method for flexible bag fuel tank, it is characterized in that, comprise the following steps:
S1, connection filling gun and charging valve, open filling gun and charging valve, and described charging valve is positioned on the fuel tank of guided missile;
S2, connection drainage rifle and Outflow Valve, open drainage rifle and Outflow Valve, and described Outflow Valve is positioned on the fuel tank of guided missile;
S3, connection ventilation rifle and ventilating valve, described ventilating valve is connected with the flexible bag in fuel tank;
S4, rolling-airframe, be placed in the Outflow Valve of fuel tank directly over body, and drainage rifle is connected in fuel oil returnable with conduit with the outlet of ventilation rifle;
S5, unlatching topping up device, arrange fuel filling pressure;
S6, start refuel;
S7, flow out fuel oil and during without bubble, illustrate that the space oil outside the interior flexible bag of fuel tank is filled it up with when Outflow Valve exit, close Outflow Valve;
S8, open ventilating valve, by in fuel oil in the termination immersion fuel oil returnable on ventilation rifle connecting tube of end road, emerge without bubble in Preset Time section when the termination on ventilation rifle connecting tube of end road, the gas emptying in flexible bag is described, close ventilation rifle and charging valve;
S9, measurement fuel oil temperature, be designated as t;
S10, the reserved air cushion amount Δ V of calculating;
After S11, fuel oil by ventilation in rifle dry up, is again connected with ventilating valve, the termination on ventilation rifle connecting tube of end road is connected with high pressure nitrogen source of the gas, simultaneously by the outlet of drainage rifle with managing introducing graduated cylinder;
S12, adjusting high pressure nitrogen bleed pressure, open ventilating valve;
S13, open Outflow Valve, discharge the fuel oil of Δ V volume from relief outlet, reserved air cushion is complete, closes Outflow Valve, closes high pressure nitrogen source of the gas.
2. the method for claim 1, is characterized in that, in step S5, set fuel filling pressure is 0.1 ± 0.05Mpa.
3. the method for claim 1, is characterized in that, in step S10, calculates reserved air cushion amount Δ V according to following formula:
ΔV=at+b
Wherein: a represents the formula coefficient relevant to coefficient of expansion, the fuel tank capacity of fuel oil with b.
4. the method as described in claim 1 or 2 or 3, is characterized in that, in step S12, regulating high pressure nitrogen bleed pressure is 0.05MPa～0.1MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410131288.6A CN103879946B (en) | 2014-04-03 | 2014-04-03 | Fuel injection method for oil tank with elastic bag |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410131288.6A CN103879946B (en) | 2014-04-03 | 2014-04-03 | Fuel injection method for oil tank with elastic bag |
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| CN103879946A true CN103879946A (en) | 2014-06-25 |
| CN103879946B CN103879946B (en) | 2017-02-22 |
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| CN201410131288.6A Active CN103879946B (en) | 2014-04-03 | 2014-04-03 | Fuel injection method for oil tank with elastic bag |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110683501A (en) * | 2019-09-30 | 2020-01-14 | 北京星航机电装备有限公司 | Vacuum-pumping type fuel oil filling method for oil tank containing elastic bag |
| CN113184201A (en) * | 2021-05-18 | 2021-07-30 | 北京机电工程研究所 | Elastic bag and breather valve combined fuel system temperature compensation device and fuel system |
| CN114212751A (en) * | 2021-11-26 | 2022-03-22 | 北京特种机械研究所 | Oil-gas separation device |
| CN114314490A (en) * | 2021-11-26 | 2022-04-12 | 北京特种机械研究所 | Method for discharging gas from fuel oil |
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| JPH04366081A (en) * | 1991-06-11 | 1992-12-17 | Sanwa Tekki Corp | Gas pressure type piping supporting device |
| CN102072210A (en) * | 2010-11-15 | 2011-05-25 | 中国船舶重工集团公司第七一○研究所 | Anti-surge oil tank |
| CN202251152U (en) * | 2011-08-11 | 2012-05-30 | 三一重型装备有限公司 | Oil tank and engineering machinery |
| CN102765693A (en) * | 2012-07-24 | 2012-11-07 | 中国人民解放军总后勤部油料研究所 | Air-extrusion type oil transporting and refueling bag |
| CN203476855U (en) * | 2013-07-23 | 2014-03-12 | 盐城百圣机械有限公司 | Hydraulic oil tank |
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2014
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH04366081A (en) * | 1991-06-11 | 1992-12-17 | Sanwa Tekki Corp | Gas pressure type piping supporting device |
| CN102072210A (en) * | 2010-11-15 | 2011-05-25 | 中国船舶重工集团公司第七一○研究所 | Anti-surge oil tank |
| CN202251152U (en) * | 2011-08-11 | 2012-05-30 | 三一重型装备有限公司 | Oil tank and engineering machinery |
| CN102765693A (en) * | 2012-07-24 | 2012-11-07 | 中国人民解放军总后勤部油料研究所 | Air-extrusion type oil transporting and refueling bag |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110683501A (en) * | 2019-09-30 | 2020-01-14 | 北京星航机电装备有限公司 | Vacuum-pumping type fuel oil filling method for oil tank containing elastic bag |
| CN110683501B (en) * | 2019-09-30 | 2021-07-02 | 北京机电工程研究所 | Vacuum-pumping type fuel oil filling method for oil tank containing elastic bag |
| CN113184201A (en) * | 2021-05-18 | 2021-07-30 | 北京机电工程研究所 | Elastic bag and breather valve combined fuel system temperature compensation device and fuel system |
| CN114212751A (en) * | 2021-11-26 | 2022-03-22 | 北京特种机械研究所 | Oil-gas separation device |
| CN114314490A (en) * | 2021-11-26 | 2022-04-12 | 北京特种机械研究所 | Method for discharging gas from fuel oil |
| CN114212751B (en) * | 2021-11-26 | 2024-03-26 | 北京特种机械研究所 | Oil-gas separation device |
| CN114314490B (en) * | 2021-11-26 | 2024-03-26 | 北京特种机械研究所 | Method for exhausting gas in fuel oil |
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| CN103879946B (en) | 2017-02-22 |
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Inventor after: Chen Xiaohui Inventor after: Li Dedong Inventor after: Li Chunxiang Inventor after: Liu Jun Inventor after: Pang Dongzhuo Inventor before: Li Dedong Inventor before: Liu Jun Inventor before: Pang Dongzhuo |
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Effective date of registration: 20201222 Address after: 100074, No. 40, Yungang North Lane, Fengtai District, Beijing Patentee after: BEIJING Research Institute OF MECHANICAL AND ELECTRICAL TECHNOLOGY Patentee after: BEIJING XINGHANG MECHANICAL-ELECTRICAL EQUIPMENT Co.,Ltd. Address before: No.9, Wangzuo Road, Yungang East, Fengtai District, Beijing 100074 Patentee before: BEIJING XINGHANG MECHANICAL-ELECTRICAL EQUIPMENT Co.,Ltd. |
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