CN102518939B - Liquid storage device of plate-type propellant management apparatus - Google Patents
Liquid storage device of plate-type propellant management apparatus Download PDFInfo
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- CN102518939B CN102518939B CN201110430515.1A CN201110430515A CN102518939B CN 102518939 B CN102518939 B CN 102518939B CN 201110430515 A CN201110430515 A CN 201110430515A CN 102518939 B CN102518939 B CN 102518939B
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Abstract
Disclosed is a liquid storage device of a plate-type propellant management apparatus. The liquid storage device contains a liquid storage inner cone (1), a liquid storage external cone (4), a liquid storage pedestal (5), a gas-guide tube (3), a liquid storage screen support and pressure plate (6) and a liquid storage device screen (7). The liquid storage inner cone (1) is welded with the liquid storage external cone (4). The liquid storage external cone (4) is welded with the liquid storage pedestal (5). By the utilization of surface tension, the propellant is stored in an included angle area between the liquid storage inner cone (1) and the liquid storage external cone (4) and an included angle area between the liquid storage external cone (4) and a tank shell internal face (8). The gas in the liquid storage device is discharged by the use of the gas-guide tube (3). The liquid storage pedestal (5) is cylindrical. The liquid storage screen support and pressure plate (6) and the liquid storage device screen (7) are installed on an internal cylinder of the liquid storage pedestal (5). According to the invention, a simple and reliable structure is used to store sufficient liquids so as to realize overall management of liquids by plate-type PMD.
Description
Technical field
The present invention relates to a kind of hydraulic accumulator of propellant management device, be specially adapted to Propellant Management under space microgravity environment.
Background technique
Surface tension propellant tank is high reliability under weightlessness and long lifetime feature with it, is widely used on the various astrovehicles such as satellite, airship, space station, carrier rocket.The core technology of surface tension propellant tank is its inner propellant management device (being called for short PMD).Plate-type propellant management apparatus belongs to the reliable advanced management device of a new generation.The target of hydraulic accumulator design is to design one of reliable performance, board-like PMD core component lightweight, simple in structure.
Existing hydraulic accumulator belongs to radiation and places leaf type hydraulic accumulator, there are some shortcomings in such hydraulic accumulator: structural strength is low, mounting process complexity, liquid storage content is little, bear mechanics environment capacity slightly poor, bad adaptability, has relatively high expectations to the control ability of satellite, reliability is not high, and is difficult for being connected with guide plate.
Summary of the invention
Technical problem to be solved by this invention is: overcome the deficiencies in the prior art, provide that a kind of structural strength is large, reliability is high, the hydraulic accumulator of strong adaptability, plate-type propellant management apparatus that liquid storage content is large.
The present invention includes following technological scheme:
A hydraulic accumulator for plate-type propellant management apparatus, described hydraulic accumulator comprises that hydraulic accumulator inner cone, hydraulic accumulator outer cone, hydraulic accumulator base, air pipe, hydraulic accumulator net sheet prop up pressing plate and hydraulic accumulator net sheet; Hydraulic accumulator inner cone and hydraulic accumulator outer cone are welded and fixed; Hydraulic accumulator outer cone and hydraulic accumulator base are welded and fixed; Utilize surface tension to hold and stay propellant agent by the angle region between the angle region between described hydraulic accumulator inner cone and described hydraulic accumulator outer cone and described hydraulic accumulator outer cone and described tank inner walls face; Utilize described air pipe that gas in described hydraulic accumulator is discharged; Described hydraulic accumulator base is cylinder type; Hydraulic accumulator net sheet props up pressing plate and hydraulic accumulator net sheet is arranged on the interior cylinder of hydraulic accumulator base.
The cone angle of described hydraulic accumulator outer cone is 45 °.
The lower pyramid mouth internal diameter of described hydraulic accumulator outer cone and tank internal diameter ratio are 1: 10, and the height of hydraulic accumulator outer cone and lower pyramid mouth internal diameter ratio are 1: 1.5.
Angle between described hydraulic accumulator inner cone and described hydraulic accumulator outer cone is 40 °.
Described hydraulic accumulator inner cone is the half of the outer cone height of described hydraulic accumulator with respect to the entry depth on described hydraulic accumulator outer cone top.
The transition segmental arc radius of described hydraulic accumulator inner cone is described entry depth 0.8 times.
Described air pipe is welded and fixed by two air pipe fixed blocks and described hydraulic accumulator inner cone, air pipe one end is put in to the top, angle region of described hydraulic accumulator inner cone and described hydraulic accumulator outer cone, makes a call to an aperture at this end of described air pipe simultaneously.
Auricle with holes is set in the outer cylinder of described hydraulic accumulator base.
At the interior cylinder of described hydraulic accumulator base, a step is set, hydraulic accumulator net sheet is clipped in two hydraulic accumulator net sheets and props up between pressing plate, and the overall structure that hydraulic accumulator net sheet and two hydraulic accumulator net sheets are propped up after pressing plate welding is welded on the described step of interior cylinder of hydraulic accumulator base.
Compared with prior art, tool has the following advantages in the present invention:
(1) hydraulic accumulator of the present invention has mainly adopted brand-new thin-slab structure, and structural strength is large, and reliability is high, strong adaptability, and liquid storage content is large;
(2) accumulator configuration of the present invention is simple, and quality is light;
(3) hydraulic accumulator of the present invention can carry out adaptability revision according to plate-type propellant management apparatus physical dimension, and its volume extensibility is good;
(4) use hydraulic accumulator of the present invention, in the time of filling, can not produce the stifled problem of gas that multilayer screen cloth causes, can greatly improve filling speed, realize the quick filling of propellant agent, be conducive to realize plate-type propellant management apparatus simultaneously and repeat filling.
Accompanying drawing explanation
Fig. 1 is accumulator configuration schematic diagram of the present invention;
Fig. 2 is that hydraulic accumulator 45 of the present invention is spent sectional drawing;
Fig. 3 is hydraulic accumulator sectional perspective enlarged view of the present invention;
Fig. 4 is hydraulic accumulator perspective bottom view of the present invention;
Fig. 5 is liquid distribution schematic diagram in beginning of lifetime tank
Fig. 6 is liquid distribution schematic diagram in middle of life tank
Fig. 7 is liquid distribution schematic diagram in end of lifetime tank
Fig. 8 is hydraulic accumulator liquid distribution schematic diagram under zero-g
Fig. 9 is hydraulic accumulator liquid distribution schematic diagram under side direction microgravity
Figure 10 is hydraulic accumulator liquid distribution schematic diagram under backward acceleration
Figure 11 is hydraulic accumulator liquid distribution schematic diagram under axial-rotation
Embodiment
As shown in Fig. 1～4, plate-type propellant management apparatus hydraulic accumulator comprises following constituent element: hydraulic accumulator inner cone 1, hydraulic accumulator outer cone 4, hydraulic accumulator base 5, air pipe 3, two air pipe fixed blocks 2, two hydraulic accumulator net sheets prop up pressing plate 6, hydraulic accumulator net sheet 7.Hydraulic accumulator inner cone 1 and 4 electron beam weldings of hydraulic accumulator outer cone; Hydraulic accumulator outer cone 4 and 5 electron beam weldings of hydraulic accumulator base.
Hydraulic accumulator has adopted inside and outside two complete cone structures, it is the cone structure that described hydraulic accumulator inner cone 1 and described hydraulic accumulator outer cone 4 form, utilize surface tension to hold and stay sufficient propellant agent by the angle region between the angle region between described hydraulic accumulator inner cone and described hydraulic accumulator outer cone and described hydraulic accumulator outer cone 4 and described tank inner walls face 8, adopt described air pipe that gas in described hydraulic accumulator is discharged, adopted the described hydraulic accumulator base of cylinder type as the chief component of bubble trap.
Reach best in order to make described hydraulic accumulator hold liquid effect, optimal design the cone angle of described hydraulic accumulator outer cone, cone angle is 45 °.
Carry out position thruster required propelling dosage while protecting according to satellite, optimal design height and the volume of described hydraulic accumulator outer cone, determined the maximum liquid storage content of described hydraulic accumulator.The lower pyramid mouth internal diameter of described hydraulic accumulator outer cone and tank internal diameter ratio are 1: 10, and height is 1: 1.5 with lower pyramid mouth internal diameter ratio.
Under microgravity environment, the angle region between described hydraulic accumulator inner cone and described hydraulic accumulator outer cone will be held and be stayed a part of propellant agent, and final surface tension and microgravity reach balance.For making the liquid storage content in this region many as far as possible, optimal design the angle between described hydraulic accumulator inner cone and described hydraulic accumulator outer cone, described angle is 40 °.
Consider that described hydraulic accumulator is in nominal situation and the reverse work requirements under microgravity operating mode, optimal design the entry depth H of described hydraulic accumulator inner cone, described entry depth is the half of the outer cone height of described hydraulic accumulator.
Optimal design the transition segmental arc of described hydraulic accumulator inner cone, segmental arc radius is 0.8 times of entry depth H.If segmental arc radius is excessive, surface tension is difficult to support propellant agent and is distributed to described hydraulic accumulator inner cone ingress, affects the liquid storage content of described hydraulic accumulator; If segmental arc radius is too small, propellant agent deflection is held and is stayed near this segmental arc, easily makes described trap be exposed in gas, thereby affects effective liquid storage content of described hydraulic accumulator.
For gas in described hydraulic accumulator being discharged in filling process, specialized designs novel described air pipe, as shown in Figure 3, air pipe 3 is connected and fixes with 1 resistance spot welding of hydraulic accumulator inner cone by two air pipe fixed blocks 2, one end of air pipe 3 is put in as far as possible to the top in the angle region between hydraulic accumulator inner cone and hydraulic accumulator outer cone, make a call to an aperture at this end of air pipe 3 simultaneously, guarantee the high extrusion efficiency of described board-like PMD to carry out to greatest extent exhaust, also improved its ability of bearing Level of Microgravity.
As shown in Figure 2, designed auricle with holes in described hydraulic accumulator base 5 outer cylinder, described hydraulic accumulator base 5 supports whole described hydraulic accumulator.Design a step at the interior cylinder of described hydraulic accumulator base, be convenient to the installation that described hydraulic accumulator net sheet props up pressing plate 6 and hydraulic accumulator net sheet 7 and fix, just formed a liquid-accumulating trough in described hydraulic accumulator bottom.Described hydraulic accumulator net sheet 7 can be tackled bubble effectively, has improved the filling speed of described plate-type propellant management apparatus and has easily dried up, and is conducive to realize described plate-type propellant management apparatus and repeats the function of annotating.The use of described hydraulic accumulator net sheet has solved the inconsistent problem of welding consumables.
As shown in Figure 2, hydraulic accumulator net sheet 7 is clipped in two hydraulic accumulator net sheets and props up between pressing plate 6, by its electron beam welding, and will guarantee that two hydraulic accumulator net sheets prop up the hole complete matching of pressing plate 6.Overall structure electron beam welding after hydraulic accumulator net sheet 7 and two hydraulic accumulator net sheets are propped up to pressing plate 6 and weld is received on the interior cylinder table rank of hydraulic accumulator base 5.
At tank end of lifetime, under microgravity environment, liquid holds substantially stays region and hydraulic accumulator region between guide plate 10 and tank inner walls face 8, as shown in Figure 7.Along with liquid in hydraulic accumulator is substantially emptying, the liquid that is distributed in tank shell wall side 8 is transferred to board-like PMD bottom along guide plate 10 under surface tension effects, by upper and lower trap to hydraulic accumulator 9 topping ups.When in hydraulic accumulator, liquid is again substantially emptying by guide plate to hydraulic accumulator topping up, discharge opeing so repeatedly, topping up are until emptying rate of liquid in tank.Hydraulic accumulator net sheet 7 can stop gas to enter tank liquid outlet, realizes the not object of gas enclosure discharge opeing.
This hydraulic accumulator has applicability widely, in not only can the various microgravity environments under nominal situation, hold and stay propellant agent, and also can hold and stay sufficient propellant agent under the extreme case of various damages, as when Z-direction (axially) angular velocity of rotation is large, backward acceleration is when larger (satellite along X, Y-axis rotation time also there will be), as shown in Fig. 8～11.
Claims (3)
1. a hydraulic accumulator for plate-type propellant management apparatus, described hydraulic accumulator comprises that hydraulic accumulator inner cone (1), hydraulic accumulator outer cone (4), hydraulic accumulator base (5), air pipe (3), hydraulic accumulator net sheet prop up pressing plate (6) and hydraulic accumulator net sheet (7); Hydraulic accumulator inner cone (1) is welded and fixed with hydraulic accumulator outer cone (4); Hydraulic accumulator outer cone (4) is welded and fixed with hydraulic accumulator base (5); Utilize surface tension to hold and stay propellant agent by the angle region between the angle region between described hydraulic accumulator inner cone (1) and described hydraulic accumulator outer cone (4) and described hydraulic accumulator outer cone (4) and tank inner walls face (8); Utilize described air pipe (3) that gas in described hydraulic accumulator is discharged; Described hydraulic accumulator base (5) is cylinder type; Hydraulic accumulator net sheet props up pressing plate (6) and hydraulic accumulator net sheet (7) is arranged on the interior cylinder of hydraulic accumulator base (5); The cone angle of described hydraulic accumulator outer cone (4) is 45 °; The lower pyramid mouth internal diameter of described hydraulic accumulator outer cone (4) and tank internal diameter ratio are 1: 10, and the height of hydraulic accumulator outer cone (4) and lower pyramid mouth internal diameter ratio are 1: 1.5; Angle between described hydraulic accumulator inner cone (1) and described hydraulic accumulator outer cone (4) is 40 °; Described hydraulic accumulator inner cone (1) is the half of described hydraulic accumulator outer cone (4) height with respect to the entry depth H on described hydraulic accumulator outer cone (4) top; The transition segmental arc radius of described hydraulic accumulator inner cone (1) is 0.8 times of entry depth H; At the interior cylinder of described hydraulic accumulator base (5), a step is set, hydraulic accumulator net sheet (7) is clipped in two hydraulic accumulator net sheets and props up between pressing plate (6), and the overall structure that hydraulic accumulator net sheet (7) and two hydraulic accumulator net sheets are propped up after pressing plate (6) welding is welded on the described step of interior cylinder of hydraulic accumulator base (5).
2. hydraulic accumulator as claimed in claim 1, it is characterized in that: described air pipe (3) is welded and fixed by two air pipe fixed blocks (2) and described hydraulic accumulator inner cone (1), air pipe (3) one end is put in to the top in the angle region between hydraulic accumulator inner cone (1) and hydraulic accumulator outer cone (4), make a call to an aperture in this air pipe (3) one end simultaneously.
3. hydraulic accumulator as claimed in claim 1, is characterized in that: in the outer cylinder of described hydraulic accumulator base (5), auricle with holes is set.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110430515.1A CN102518939B (en) | 2011-12-20 | 2011-12-20 | Liquid storage device of plate-type propellant management apparatus |
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| CN201110430515.1A CN102518939B (en) | 2011-12-20 | 2011-12-20 | Liquid storage device of plate-type propellant management apparatus |
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| CN102518939A CN102518939A (en) | 2012-06-27 |
| CN102518939B true CN102518939B (en) | 2014-05-28 |
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Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102991729B (en) * | 2012-11-30 | 2015-09-23 | 北京控制工程研究所 | A kind of Light mesh-type surface tension storage tank |
| CN103287589B (en) * | 2013-04-08 | 2015-07-08 | 北京控制工程研究所 | Microgravity experimental system for component performance verification of plate type propellant management device |
| CN103293557B (en) * | 2013-04-08 | 2015-10-21 | 北京控制工程研究所 | Performance microgravity test of hydraulic accumulator verification method in a kind of plate-type propellant management apparatus |
| CN103590923B (en) * | 2013-10-16 | 2016-08-24 | 北京控制工程研究所 | A kind of bubble filter for bubble trap of surface tension storage tank |
| CN103590924B (en) * | 2013-10-16 | 2017-01-25 | 北京控制工程研究所 | High-rigidity propellant management device for large surface tension storage box |
| CN103950557B (en) * | 2014-04-29 | 2016-05-04 | 北京控制工程研究所 | A kind of hydraulic accumulator for spacecraft propellant tank |
| CN104691786B (en) * | 2015-01-07 | 2016-08-24 | 北京控制工程研究所 | A kind of propellant management device in propellant tank |
| CN105173462B (en) * | 2015-08-25 | 2018-05-08 | 中国人民解放军国防科学技术大学 | The selection method of hydraulic accumulator and hydraulic accumulator |
| CN105642453B (en) * | 2016-03-23 | 2018-02-13 | 北京航天动力研究所 | A kind of high-pressure high-flow microgravity centrifugal gas-liquid separation device |
| CN109367824B (en) * | 2018-12-12 | 2020-11-24 | 上海空间推进研究所 | Deflector type surface tension pressure vessel |
| CN110469429B (en) * | 2019-08-28 | 2021-05-04 | 上海宇航系统工程研究所 | Low-temperature fluid cooling management device |
| CN110566370B (en) * | 2019-08-28 | 2021-09-14 | 上海宇航系统工程研究所 | Microgravity environment small-flow precooling system |
| CN110525695B (en) * | 2019-09-06 | 2021-07-16 | 北京空间技术研制试验中心 | Spacecraft propellant storage and management split system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3837137A1 (en) * | 1988-11-02 | 1990-05-03 | Erno Raumfahrttechnik Gmbh | FUEL TANK FOR STORING AGGRESSIVE LIQUIDS |
| US5279323A (en) * | 1991-12-19 | 1994-01-18 | Lockheed Missiles & Space Company, Inc. | Liquid management apparatus for spacecraft |
| CN1206671A (en) * | 1997-07-25 | 1999-02-03 | 航空发动机的结构和研究公司 | Compact single propelling agent unit prepelling system for small artificial satellite |
| CN201553157U (en) * | 2009-09-28 | 2010-08-18 | 北京控制工程研究所 | Storage tank plate-type propellant management device |
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