CN103879946B - 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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- CN103879946B CN103879946B CN201410131288.6A CN201410131288A CN103879946B CN 103879946 B CN103879946 B CN 103879946B CN 201410131288 A CN201410131288 A CN 201410131288A CN 103879946 B CN103879946 B CN 103879946B
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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 is and in particular to a kind of fuel filling method containing flexible bag fuel tank.
Background technology
Fuel filling is the requisite operation providing fuel before missile flight for dynamical system.According to the difference of Oiltank structure, the method that guided missile is carried out with fuel filling is also different.For the difference of fuel tank internal structure, it is divided into fuel tank containing flexible bag and does not contain flexible bag fuel tank.There is presently no a kind of method for fuel filling is carried out to fuel tank containing flexible bag.
Content of the invention
(1) technical problem to be solved
The technical problem to be solved in the present invention is：How to provide a kind of reliability of the impact changing to the internal pressure of fuel tank that can overcome ambient temperature the high fuel filling method containing flexible bag fuel tank.
(2) technical scheme
In order to solve above-mentioned technical problem, 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 located 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 located 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, the Outflow Valve of fuel tank is placed in directly over body, and drainage rifle is connected to fuel oil returnable with ventilation rifle outlet conduit；
S5, unlatching filing provision, arrange fuel filling pressure；
S6, start refuel；
S7, when fuel oil is flowed out and during bubble-free in Outflow Valve exit, illustrate that the space oil outside flexible bag in fuel tank is filled it up with, closing 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, when ventilation rifle connecting tube of end road termination in preset time period bubble-free emerge, the gas emptying in flexible bag be described, closes ventilate rifle and charging valve；
S9, measurement fuel oil temperature, are designated as t；
S10, the reserved air cushion amount Δ V of calculating；
S11, by ventilation rifle in fuel oil dry up after is again connected with ventilating valve, by ventilate rifle connecting tube of end road termination be connected with high pressure nitrogen source of the gas, drainage rifle outlet pipe is introduced graduated cylinder simultaneously；
S12, regulation 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 finishes, close Outflow Valve, close high pressure nitrogen source of the gas.
Preferably, set in step S5 fuel filling pressure is 0.1 ± 0.05MPa.
Preferably, calculate reserved air cushion amount Δ V according to equation below in step S10：
Δ V=at+b
Wherein：A and b represents the equation coefficients related to the coefficient of expansion of fuel oil, volume of fuel tank.
Preferably, in step S12, regulation high pressure nitrogen bleed pressure is 0.05MPa～0.1MPa.
(3) beneficial effect
The present invention passes through to be filled with fuel oil into fuel tank, gas in emptying flexible bag, it is filled with a certain amount of noble gases again as the method for reserved air cushion into flexible bag, realize to the fuel filling containing flexible bag fuel tank, after reserved air cushion, fuel tank after air cushion can guarantee that fuel up can be during long term storage, change with ambient temperature, by the pressure in the relief valve regulating oil tank that is connected with flexible bag, i.e., when tank temperature rises, pressure reaches the threshold value of relief valve, gas in air cushion is discharged to keep tank pressure stable by relief valve automatically, so as to overcome the impact changing the internal pressure to fuel tank of ambient temperature.
Brief description
Fig. 1 is method of the present invention flow chart；
Fig. 2 is the device annexation figure filling in the method for the present invention and exhaust process is used；
The device annexation figure that Fig. 3 is used by air cushion reserved in the method for the present invention.
Specific embodiment
For making the purpose of the present invention, content and advantage clearer, with reference to the accompanying 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, comprising the following steps：
S0, will be fixed on load bearing equipment for guided missile 1；
S1, connection filling gun 2 and charging valve 3, open filling gun 2 and charging valve 3, described charging valve 3 is located 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, described Outflow Valve 7 is located 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 7 of fuel tank 4 is placed in (to keep Outflow Valve to be just located at fuel tank highest point) directly over body, drainage rifle 6 is connected with ventilation rifle 8 outlet conduit to fuel oil returnable 10 (fuel oil for overflowing when reclaiming and filling it up with), as shown in Figure 2；
The filing provision 11 (existing equipment) that S5, unlatching are connected with oil storage groove tank 14, setting fuel filling pressure is 0.1 ± 0.05MPa；
S6, start refuel；
S7, when fuel oil is flowed out and during bubble-free in Outflow Valve 7 exit, illustrate that the space oil outside flexible bag 5 in fuel tank 4 is filled it up with, closing Outflow Valve 7；
S8, open ventilating valve 9, by in fuel oil in the termination immersion fuel oil returnable 10 on ventilation rifle 8 connecting tube of end road, examine ventilation gun barrel road tail end venting situation, when ventilation rifle 8 connecting tube of end road termination in 1min bubble-free emerge, gas emptying in flexible bag 5 is described, closes ventilation rifle 8 and charging valve 3；
S9, measurement fuel oil temperature, are designated as t (DEG C)；
S10, calculate reserved air cushion amount Δ V according to equation below, i.e. total fuel oil volume discharged, unit liter (L)：
ΔV=at+b
Wherein：T represents the temperature of fuel up；A and b represents the equation coefficients related to the coefficient of expansion of fuel oil, volume of fuel tank, and the calculating process of a and b is prior art.
S11, as shown in Figure 3, again it is connected with ventilating valve 9 after fuel oil in ventilation rifle 8 is dried up, the termination on ventilation rifle 8 connecting tube of end road is connected with high pressure nitrogen source of the gas 12, drainage rifle 6 outlet is introduced graduated cylinder 13 with pipe simultaneously, graduated cylinder 13 can measure the fuel oil volume of discharge；Wherein, the pipeline between ventilation rifle 8 and high pressure nitrogen source of the gas 12 is additionally provided with decompressor 15.
S12, regulation 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 finishes, close Outflow Valve 7, close high pressure nitrogen source of the gas 12.When tank temperature rises, pressure reaches the threshold value of relief valve (being connected, not shown) with flexible bag, and the gas in air cushion is discharged by relief valve automatically, is then shut off ventilating valve 9.
As can be seen from the above embodiments, the present invention passes through to be filled with fuel oil into fuel tank, gas in emptying flexible bag, it is filled with a certain amount of noble gases again as the method for reserved air cushion into flexible bag, realize to the fuel filling containing flexible bag fuel tank, after reserved air cushion, fuel tank after air cushion can guarantee that fuel up can be during long term storage, change with ambient temperature, by the pressure in the relief valve regulating oil tank that is connected with flexible bag, i.e., when tank temperature rises, pressure reaches the threshold value of relief valve, gas in air cushion is discharged to keep tank pressure stable by relief valve automatically, so as to overcome the impact changing the internal pressure to fuel tank of ambient temperature.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, on the premise of without departing from the technology of the present invention principle; some improvement can also be made and deform, these improve and deformation also should be regarded as protection scope of the present invention.
Claims (3)
1. a kind of fuel filling method containing flexible bag fuel tank is it is characterised in that include following
Step：
S1, connection filling gun and charging valve, open filling gun and charging valve, described filling
Valve is located on the fuel tank of guided missile；
S2, connection drainage rifle and Outflow Valve, open drainage rifle and Outflow Valve, described drainage
Valve is located 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
Connect；
S4, rolling-airframe, the Outflow Valve of fuel tank is placed in directly over body, drainage rifle with logical
Air gun outlet conduit connects to fuel oil returnable；
S5, unlatching filing provision, arrange fuel filling pressure；
S6, start refuel；
S7, when fuel oil is flowed out and during bubble-free in Outflow Valve exit, flexible bag in fuel tank is described
Outer space oil is filled it up with, closes Outflow Valve；
S8, open ventilating valve, the termination immersion fuel oil on ventilation rifle connecting tube of end road is reclaimed
In fuel oil in container, when ventilation rifle connecting tube of end road termination in preset time period bubble-free
Emerge, the gas emptying in flexible bag is described, close ventilation rifle and charging valve；
S9, measurement fuel oil temperature, are designated as t；
S10, the reserved air cushion amount Δ V of calculating；
S11, by ventilation rifle in fuel oil dry up after be again connected with ventilating valve, rifle of ventilating
The termination on connecting tube of end road is connected with high pressure nitrogen source of the gas, draws drainage rifle outlet pipe simultaneously
Enter graduated cylinder；
S12, regulation high pressure nitrogen bleed pressure, open ventilating valve；
S13, open Outflow Valve, discharge the fuel oil of Δ V volume, reserved air cushion from relief outlet
Finish, close Outflow Valve, close high pressure nitrogen source of the gas.
2. the method for claim 1 is it is characterised in that set in step S5
Fuel filling pressure is 0.1 ± 0.05MPa.
3. method as claimed in claim 1 or 2 is it is characterised in that in step S12,
Regulation 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 |
Applications Claiming Priority (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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| Publication Number | Publication Date |
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| CN103879946A CN103879946A (en) | 2014-06-25 |
| CN103879946B true 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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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN114314490B (en) * | 2021-11-26 | 2024-03-26 | 北京特种机械研究所 | Method for exhausting gas in fuel oil |
| CN114212751B (en) * | 2021-11-26 | 2024-03-26 | 北京特种机械研究所 | Oil-gas separation device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2014
- 2014-04-03 CN CN201410131288.6A patent/CN103879946B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| CN103879946A (en) | 2014-06-25 |
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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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