CN106762224B - A kind of Large Copacity half manages formula surface tension propellant tank balance charging method in parallel - Google Patents
A kind of Large Copacity half manages formula surface tension propellant tank balance charging method in parallel Download PDFInfo
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- CN106762224B CN106762224B CN201611042936.6A CN201611042936A CN106762224B CN 106762224 B CN106762224 B CN 106762224B CN 201611042936 A CN201611042936 A CN 201611042936A CN 106762224 B CN106762224 B CN 106762224B
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- 239000003380 propellant Substances 0.000 title claims abstract description 61
- 238000000034 method Methods 0.000 title claims abstract description 44
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 40
- 239000001307 helium Substances 0.000 claims abstract description 31
- 229910052734 helium Inorganic materials 0.000 claims abstract description 31
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000007789 gas Substances 0.000 claims abstract description 28
- 238000005429 filling process Methods 0.000 claims abstract description 26
- 239000000126 substance Substances 0.000 claims abstract description 6
- 101100314150 Caenorhabditis elegans tank-1 gene Proteins 0.000 claims description 61
- 238000005259 measurement Methods 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 14
- 239000012530 fluid Substances 0.000 claims description 13
- 239000011159 matrix material Substances 0.000 claims description 6
- 238000009533 lab test Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 208000028659 discharge Diseases 0.000 description 9
- 238000004364 calculation method Methods 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000000205 computational method Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000009916 joint effect Effects 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K9/00—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
- F02K9/42—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof using liquid or gaseous propellants
- F02K9/44—Feeding propellants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
- B64F1/00—Ground or aircraft-carrier-deck installations
- B64F1/28—Liquid-handling installations specially adapted for fuelling stationary aircraft
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G1/00—Cosmonautic vehicles
- B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
- B64G1/40—Arrangements or adaptations of propulsion systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K9/00—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
- F02K9/42—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof using liquid or gaseous propellants
- F02K9/44—Feeding propellants
- F02K9/56—Control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K9/00—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
- F02K9/42—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof using liquid or gaseous propellants
- F02K9/44—Feeding propellants
- F02K9/56—Control
- F02K9/58—Propellant feed valves
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Remote Sensing (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
A kind of Large Copacity half manages formula surface tension propellant tank balance charging method in parallel：(1) satellite booster agent charging line is connected, confirms that the leak rate of charging line system meets to require；(2) to two tanks in parallel, charge and discharge helium enters line replacement simultaneously, until gas sampled chemical examination is qualified；(3) pipeline of repropellenting pipeline and tank downstream in parallel is vacuumized；(4) at propellant is filled into tank in parallel plus valve valve port；(5) tank in parallel is steadily filled simultaneously, until completing 90% or more of specified adding amount；(6) tank in parallel is filled again, until the adding amount in single tank is satisfied by mission requirements；(7) into tank aerating pad to desired air cushion pressure.This method can realize that Large Copacity half manages the balance filling in parallel of formula surface tension propellant tank, shorten the tank repropellenting time in parallel, ensure the reliability and security of satellite filling process.
Description
Technical field
The present invention relates to a kind of Large Copacity half to manage formula surface tension propellant tank balance charging method in parallel, belongs to spacecraft and pushes away
Enter technology, the spacecraft propulsion system suitable for managing formula surface tension propellant tank using Large Copacity half.
Background technology
For the satellite bipropellant propulsion system of tank structure in parallel, one is propellant balance row the problem of important
Exoergic power, i.e., remaining propulsion dosage will be consistent in tank in parallel.If the propellant space emission of two tanks in parallel is uneven,
Then after propellant empties in a tank, it is further continued for the helium in tank will being discharged so that pushing away in propellant pipeline
Enter agent gas enclosure, thruster and engine can not work, and the lifetime of satellite terminates, and residual propellant will be into another tank
For slow-witted weight, can not use.For the satellite for carrying propellant 3000kg, when the unbalance factor of tank discharge in parallel is by 3%
When being reduced to 1%, about 60kg propellants can be saved.In addition, if tank in parallel discharge is uneven, centroid of satellite will be caused inclined
Tiltedly, posture is uncontrollable when can cause the orbit maneuver motor to light a fire when serious.Therefore, come for the satellite platform of tank structure in parallel
Say, the propellant balance emission problem of tank in parallel has to solve.And the premise for ensureing to balance emission problem is necessary
It is balance to ensure the repropellenting amount in tank in parallel.
Large Copacity half manages formula surface tension propellant tank when carrying out repropellenting, adds valve simultaneously to two by a liquid
Propellant is filled in individual tank, two tank fluid path connections in theory being capable of self-balancing.But in two incendiary agent tank upstream and downstream
The asymmetry of pipe-line layout, the flow resistance individual difference of latching valve and tank product, tank installation and deformation difference, filling process
Under the joint effect of the factors such as tank temperature and back pressure difference, it is difficult to ensure that being filled in filling process in two tanks in parallel
The uniformity of amount.Although the balance of adding amount in tank in parallel can finally be realized by the method for standing, for volume
The time that bigger tank in parallel needs expend is also longer, and this is typically unacceptable for launching site fills.
Further, since satellite tank can only disposably fill entrance, Er Qieyou using half management formula net formula tank, propellant
It is larger in tank volume, therefore the position of two tanks in parallel is generally distant, if adding amount differs in two tanks in parallel
Cause centroid of satellite eccentric compared with conference, barycenter bias, which crosses conference, makes repropellenting process become uncontrollable, and propellant has
The features such as inflammable, explosive, poisonous, slightly mistake, with regard to the safety of entail dangers to satellite, jeopardize personnel, the safety of factory building.
The content of the invention
Present invention solves the technical problem that it is：Overcome prior art insufficient, there is provided a kind of Large Copacity half manages formula surface
The method of power tank balance filling in parallel, the measurability of single tank repropellenting amount in tank in parallel is realized, to adding amount
There is higher control accuracy, simplify repropellenting flow, shorten the filling time, filling process centroid of satellite is stable.
The present invention technical solution be：A kind of Large Copacity half manages formula surface tension propellant tank balance filling side in parallel
Method, step are as follows：
(1) the helium charging line of valve MV1 connections ground filing provision will be added, add the filling of valve MV2 connections ground to set
Standby repropellenting pipeline and vavuum pump, pipeline tie point is hunted leak, confirm that the leak rate of pipeline tie point meets to require；
(2) latching valve LV1, LV2 are opened, by adding valve MV1 tank Tank1s and Tank2 in parallel to two first to be filled out
Released after filling the operation of helium, the gas released out is sampled and chemically examined during helium of releasing, until gas sampled
Untill result of laboratory test meets the index of setting；
(3) close ground filing provision repropellenting pipeline, with vavuum pump will plus valve MV2 to latching valve LV3 and
Pipeline between LV4 vacuumizes, and untill the vacuum in this section of pipeline meets to require, closes vavuum pump；
(4) the repropellenting pipeline of ground filing provision is opened, filing provision repropellenting pipeline is extremely added into valve
Propellant is full of in the pipeline formed between MV2, satellite gross mass and centroid position under this state are recorded, as satellite booster
Agent fills the zero point of measurement；
(5) open and add valve MV2, On board computer sends instructions to latching valve LV3, LV4 opens tank fluid path self-locking in parallel
Valve LV3 and LV4, tank Tank1 and Tank2 are steadily filled from tank liquid in-out mouth, until completing specified adding amount
90% or more, filing provision repropellenting pipeline is closed, tank Tank1 and Tank2 are measured by centroid of satellite testboard
Repropellenting amount in the interior total adding amount of propellant and single tank Tank1, Tank2；
(6) filing provision repropellenting pipeline is opened, tank Tank1 and Tank2 are filled again, until tank
Adding amount in the total adding amounts of Tank1 and Tank2 and single tank Tank1, Tank2 reaches specified adding amount, closes in parallel
Tank fluid path latching valve LV3 and LV4, close MV2；
(7) from adding valve MV1 into tank Tank1 and Tank2 to be filled with helium up to the pressure in tank reaches simultaneously
It is required that.
Helium replacement method is in tank Tank1, Tank2 in step (2)：Tank is filled with qualified helium is chemically examined simultaneously
Tank1 and Tank2, helium bleed air operation is carried out after being charged to certain pressure, gas sample is carried out in deflation course, to sampling gas
Body is chemically examined, as chemically examine it is qualified if carry out step (3), if chemically examine it is unqualified if repeat charge and discharge helium and gas sample
Operation is untill gas sampled chemical examination is qualified.
The steady charging method of tank progress is in described step (5)：The filling flow allowed according to used tank
Control requires, sets more than two traffic phases to be filled according to the difference of adding amount, to ensure the steady of filling process；
Meanwhile the total adding amount of propellant and single tank in tank Tank1 and Tank2 in parallel are measured by centroid of satellite testboard
Repropellenting amount in Tank1, Tank2, when adding amount difference is larger in tank Tank1 and Tank2 in parallel, pause filling,
Stood, until adding amount meets that balance is further continued for filling after requiring in tank Tank1 and Tank2 in parallel, until adding amount
Reach 90% or more of specified adding amount.
Repropellenting in single tank Tank1, Tank2 is measured by centroid of satellite testboard in described step (5)
The method of amount is：
The matter of satellite when satellite booster agent fills measurement zero point is obtained by centroid of satellite testboard measurement in step (4)
Amount and barycenter initial parameter matrix a0=[m0, X0, Y0], measurement obtains the quality and matter of satellite to certain moment t in real time in filling process
Heart real-time parameter matrix at=[mt, Xt, Yt], then repropellenting amount calculates in single tank Tank1 and Tank2 under the moment
Method is as follows：
Wherein, mtThe quality of the satellite obtained for centroid of satellite testboard measurement, (Xt, Yt) surveyed for centroid of satellite testboard
The centroid position coordinate of the satellite body coordinate system horizontal direction measured；Δm1With Δ m2Respectively tank Tank1 and Tank2
Interior repropellenting amount, (X1, Y1) and (X2, Y2) it is respectively tank Tank1 and Tank2 in satellite body coordinate system level side
To position coordinates.
Charging method is tank Tank1 and Tank2 progress propellant in parallel again in described step (6)：According to step (5)
In repropellenting amount Δ m in each tank in parallel for being obtained by centroid of satellite testboard measurement1With Δ m2, it is calculated every
Individual tank is to reach the propulsion dosage that specified adding amount need to fill again, and tank Tank1, Tank2 are filled again one by one, until
Untill single case repropellenting amount and total adding amount in tank Tank1 and Tank2 reach specified adding amount；Wherein, it is single
Charging method is as follows again for tank：It is opening to set latching valve LV3 or LV4 corresponding to the tank fluid path that the needs fill again,
Latching valve LV3 or LV4 corresponding to another tank fluid path are closed mode, and the filling traffic requirement allowed according to single tank is set
Flow is filled, the tank is filled again, untill adding amount again reaches the propulsion dosage that the tank need to fill again, is closed
Latching valve corresponding to the tank fluid path of needs filling.
The present invention compared with prior art the advantages of be：
(1) present invention can test satellite quality and centroid calculation that measurement obtains by satellite filling process centroid of satellite
Each repropellenting amount of tank in parallel when drawing this, realize the reality of adding amount in the total adding amount of propellant and single tank
When show, be easy to monitor the balance in parallel of repropellenting process in real time, when repropellenting in tank in parallel
When amount difference is larger, treatment measures can be taken in time, it is ensured that the security of filling process；
(2) present invention is filled flow relative simplicity, can significantly shortened using tank in parallel while liquid feeding and the method for aerating
The time is filled, and the on-off times of tank gas port and liquid mouth latching valve in parallel can be reduced, filling process centroid of satellite is substantially without change
Change, filling process centroid of satellite eccentricity issues can be avoided；
(3) method of the present invention by filling again, tank in parallel is added to the adding amount of requirement one by one, single storage can be achieved
The accurate control of adding amount and the total adding amount of propellant in case, it is ensured that the propellant under satellite takeoff condition in tank in parallel is in
Poised state, provided safeguard for the balance discharge of follow-up in-orbit tank in parallel；
(4) filling process of the invention can utilize double elements satellite filing provision conventional at present, it is not necessary to which increase is extra
Equipment, greatly save cost；
(5) charging method of the invention is simple and easy, and operating process is reasonable, has stronger practicality；
(6) present invention has succeeded applies in satellite launch site filling, and certain satellite uses two simultaneously in master-plan
Joining the structure of incendiary agent tank, the total adding amount of incendiary agent is more than 1000kg, wherein the adding amount in each incendiary agent tank is identical,
The filling time lasts 7.5 hours since incendiary agent enters incendiary agent tank, and whole filling process designs one by one according to filling
To implement, real-time monitoring result shows that adding amount maximum difference in whole filling process is no more than 2kg in two incendiary agent tanks,
It is fine to fill the tank adding amount uniformity of overall process two, two tank adding amounts differ 0.2kg at the end of filling process, then fill
Two tank adding amounts difference is only 0.1kg at the end of journey, is the 0.01% of total adding amount.
Brief description of the drawings
Fig. 1 is the pipe-line system schematic diagram being made up of 2 tanks in parallel；
Fig. 2 is that Large Copacity of the present invention half manages formula surface tension propellant tank balance charging method flow chart in parallel.
Embodiment
The present invention basic ideas be：It is proposed that a kind of Large Copacity half manages formula surface tension propellant tank balance filling side in parallel
Method：(1) satellite booster agent charging line is connected, confirms that the leak rate of charging line system meets to require；(2) to two tanks in parallel
Charge and discharge helium enters line replacement simultaneously, until gas sampled chemical examination is qualified；(3) by repropellenting pipeline and tank downstream in parallel
Pipeline vacuumizes；(4) at propellant is filled into tank in parallel plus valve valve port；(5) tank in parallel is carried out simultaneously steady
Filling, until completing 90% or more of specified adding amount；(6) tank in parallel is filled again, until in single tank
Adding amount is satisfied by mission requirements；(7) into tank aerating pad to desired air cushion pressure.This method can realize Large Copacity semicanal
The balance filling in parallel of reason formula surface tension propellant tank, shortens the tank repropellenting time in parallel, ensures satellite filling process
Reliability and security.
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
Large Copacity of the present invention half manages formula surface tension propellant tank balance charging method in parallel, suitable for using great Rong
The spacecraft propulsion system of tank in parallel is measured, the propellant tank allocation plan of wherein propulsion system can be oxidant and burning
One kind in agent uses tank in parallel using tank in parallel or two kinds of propellants, tank in parallel be usually 2 simultaneously
Connection, or multiple parallel connections.
As shown in Figure 1 is the pipe-line system schematic diagram being typically made up of 2 tanks in parallel, as shown in Figure 1 tank in parallel
Pipe-line system by 2 propellant tanks (Tank1 and Tank2), 2 plus valve (MV1 and MV2), 2 pressure sensors (PT1 and
PT2) and 4 latching valves (LV1, LV2, LV3 and LV4) form.
Tank1, Tank2 include air inlet/outlet and liquid in-out mouth, and air inlet/outlet is located at top, and liquid in-out mouth is located at bottom
Portion.
The pipeline of outside ground filing provision, including：Helium charging line and repropellenting pipeline.
The pipeline of the MV1 outside ground filing provision of one end connection, can input and output gas, MV1 other end connection
LV1 one end and LV2 one end, LV1 the other end connection PT1 and Tank1 air inlet/outlet, LV2 the other end connection PT2 and
Tank2 air inlet/outlet；The pipeline of the MV2 outside ground filing provision of one end connection, can input and output liquid (including：Push away
Enter agent), MV2 other end connection LV3 one end and LV4 one end, LV3 other end connection Tank1 liquid in-out mouth, LV4
The other end connection Tank2 liquid in-out mouth.
Propellant tank Tank1 and Tank2 are that two identical Large Copacities (capacity is generally in more than 500L) half manage formula
Surface tension propellant tank, for storing propellant；Add valve MV1 and MV2 to be used for terrestrial operation, in filling process plus valve MV1 and
MV2 is connected with the pipeline of ground filing provision, be respectively used to filling to propellant tank Tank1 and Tank2 or discharge gas and
Propellant；Pressure sensor PT1 and PT2 are respectively used to measure the pressure in propellant tank Tank1 and Tank2；Latching valve LV1
It is tank gas circuit latching valve with LV2, respectively positioned at propellant tank Tank1 and Tank2 air inlet/outlet end, for controlling gas
The break-make of pipeline (i.e. the control gas piping that MV1 to Tank1 air inlet/outlet is formed)；Latching valve LV3 and LV4 are tank fluid path
Latching valve, respectively positioned at propellant tank Tank1 and Tank2 liquid inlet/outlet end, for control propellant pipeline (i.e. from
The propellant pipeline that Tank2 liquid in-out mouth is formed to MV2) break-make；On board computer can control 4 latching valves (LV1,
LV2, LV3 and LV4) switch.
Tank pipe-line system in parallel as described above is installed on spacecraft (satellite).Satellite is placed on centroid of satellite test
On platform, centroid of satellite testboard can measure the quality and centroid position of satellite.The satellite that centroid of satellite testboard measurement obtains
Coordinate of the centroid position under satellite body coordinate system be (X, Y, Z), wherein satellite body coordinate system vertical direction Z-direction (i.e.
With tank Tank1 and Tank2 geometrical axis parallel direction) influence of the location parameter to repropellenting amount result of calculation can
Ignore, in repropellenting amount calculation formula using only satellite body coordinate system horizontal direction centroid position coordinate (X,
Y)。
A kind of Large Copacity half manages formula surface tension propellant tank balance charging method in parallel and is used for for the storage in parallel shown in Fig. 1
Case pipe-line system fills propellant and fills helium.The specific steps of the present invention are described in further detail with reference to Fig. 1.
It is illustrated in figure 2 Large Copacity of the present invention half and manages formula surface tension propellant tank balance charging method flow chart in parallel, this
The concrete methods of realizing of invention is as follows：
(1) satellite is well placed on barycenter platform, will be added the helium charging line of valve MV1 connections ground filing provision, is added
The repropellenting pipeline of valve MV2 connections ground filing provision, pair plus valve and ground charging line tie point carry out it is single
Point leak detection, leak hunting method can use bubble method detection, and visual observation tie point (gas in the case of 0.4MPa helium is filled in pipeline
Body charging line and plus valve MV1 tie point, repropellenting pipeline and the tie point for adding valve MV2) place, 3 at tie point
Minute bubble-free occurs to be qualified.
(2) set latching valve state as follows：Latching valve LV1 and LV2 are open mode, and latching valve LV3 and LV4 are closing shape
State.From add at valve MV1 tank Tank1 and Tank2 in parallel to two and while carry out bleed air operation, by propellant tank pressure
0.05MPa is deflated to by original state 0.2MPa helium, stopped when high-purity helium is then filled with into tank in parallel to 1MPa simultaneously
Only inflate, then bleed air operation is carried out to tank, carry out gas sample to discharge gas during deflation examines for helium purity
Survey, closed when being deflated to 0.05MPa and add valve MV1.Helium purity detecting result is qualified, continues the operation of step (3),
Repeat the operation of charge and discharge helium and gas sample examination if chemical examination is unqualified, untill gas sampled chemical examination is qualified.
Gas sampled result of laboratory test meets the index of setting, i.e. helium purity detecting acceptable criterion is：Helium content ＞ 99.95%, nitrogen
Gas content≤200ppm, water vapour content≤100ppm, other gas content≤80ppm.
(3) from connection vavuum pump at valve MV2 is added, valve MV2 will be added between latching valve LV3 and LV4 with vavuum pump
Pipeline vacuumizes, until (adding valve MV2 between latching valve LV3 and LV4 untill the vacuum in charging line reaches 0.2kPa
The vacuum level requirements that vacuumize of pipeline), close plus valve MV2.
(4) full of combustion in the pipeline for extremely plus between valve MV2 valve ports forming filing provision repropellenting line entry
Agent is burnt, the zero point of satellite gross mass and centroid position as satellite incendiary agent filling measurement under this state is recorded, now defends
The quality and barycenter initial parameter matrix of star are a0=[m0, X0, Y0]。
(5) open and add valve MV2, sent instructions by On board computer to latching valve driver circuit, while open storage in parallel
Case fluid path latching valve LV3 and LV4, incendiary agent tank filling is carried out to tank Tank1 in parallel and Tank2 from tank liquid mouth.According to
The filling flow that used half management formula surface tension propellant tank allows, which controls, to be required, is divided to two traffic phases to be filled, its
Middle incendiary agent was low discharge stage (if filling flow set is 1.0kg/min) before not having tank managing device, and liquid did not had storage
It is big flow stage after case managing device (if filling flow set is 2.6kg/min).In filling process, surveyed by centroid of satellite
Test stand is supervised in real time to incendiary agent adding amount in the total adding amount of incendiary agent in tank Tank1 and Tank2 in parallel and single tank
Depending on and record, when in two tanks in parallel adding amount differ larger (such as larger than 30kg) when, pause filling, stood, until
In tank in parallel adding amount meet balance require (in such as Tank1 and Tank2 the difference of adding amount be less than single tank Tank1,
Tank2 volumes 1.5%) after be further continued for filling, until adding amount reaches 90% or more of specified adding amount.
The computational methods of incendiary agent adding amount are in single tank in step (5)：Certain moment measures in real time in filling process
It is a to obtain the quality of satellite and barycenter real-time parameter matrixt=[mt, Xt, Yt], then incendiary agent adds in single tank under the moment
Fluence computational methods are as follows：
Wherein, Δ m1With Δ m2Incendiary agent adding amount respectively in two tanks in parallel, (X1, Y1) and (X2, Y2) respectively
For the position coordinates of two tank horizontal directions in parallel.When the Z axis of two incendiary agent tanks and the Z axis of satellite is parallel and tank
When barycenter is located in the X-axis of satellite, it will be assumed that it is 0 that the barycenter of Y-direction is permanent in filling process, then incendiary agent fills in single tank
Amount calculation formula can be reduced to：
Two incendiary agent tank barycenter are to be arranged symmetrically along X-direction, the distance of the axial line distance satellite Z axis of each tank
It is L, i.e., the center-of-mass coordinate of two tanks is respectively (L, 0) and (- L, 0), then the incendiary agent adding amount in single tank calculates public
Formula is as follows：
Wherein, Δ m=mt-m0,
(6) combustion in the step of being obtained according to centroid of satellite testboard measurement (5) finish time tank Tank1 and Tank2
Burn agent adding amount Δ m1With Δ m2, it is calculated to reach total adding amount Δ mfTwo tanks are respectively necessary for the propulsion filled again
Dosage Δ m1' and Δ m '2It is as follows respectively：
Tank1 is filled first, specific method is as follows：On board computer sends instructions closing to latching valve driver circuit
Latching valve LV4, incendiary agent is filled into Tank1, and the maximum filling flow that single tank allows, filling is not to be exceeded in filling flow
During the adding amount in Tank1 is monitored in real time, when adding amount reaches Δ m again1' when stop filling, On board computer
Send instructions to latching valve driver circuit and close latching valve LV3.
Secondly Tank2 is filled, specific method is as follows：On board computer sends instructions opening to latching valve driver circuit
Latching valve LV4, incendiary agent is filled into Tank2, and the maximum filling flow that single tank allows, filling is not to be exceeded in filling flow
During the adding amount in Tank2 is monitored in real time, when adding amount reaches Δ m ' again2When stop filling, On board computer
Send instructions to latching valve driver circuit and close latching valve LV4.
The incendiary agent that Tank1 and Tank2 completed after refill operations in two tanks is obtained by barycenter platform measurement always to add
Adding amount in fluence and single incendiary agent tank, confirmation meet after mission requirements that filling process terminates again, close plus valve
MV2。
(7) from adding at valve MV1 while being filled with helium into tank in parallel, until the pressure in tank reaches required value
(such as 1.7MPa) is closed afterwards plus valve MV1.
The present invention has succeeded to be applied in satellite launch site filling, and certain satellite is in master-plan using two combustions in parallel
The structure of agent tank is burnt, the total adding amount of incendiary agent is more than 1000kg, wherein the adding amount in each incendiary agent tank is identical, filling
Time lasts 7.5 hours since incendiary agent enters incendiary agent tank, and whole filling process is implemented one by one according to filling design,
Real-time monitoring result shows that adding amount maximum difference in whole filling process is no more than 2kg in two incendiary agent tanks, fills
The tank adding amount uniformity of overall process two is fine, and two tank adding amounts differ 0.2kg, then filling process knot at the end of filling process
Two tank adding amounts difference is only 0.1kg during beam, is the 0.01% of total adding amount, it is practicable to show this method.
The content not being described in detail in description of the invention belongs to the known technology of professional and technical personnel in the field.
Claims (5)
1. a kind of Large Copacity half manages formula surface tension propellant tank balance charging method in parallel, it is characterised in that step is as follows：
(1) the helium charging line of valve MV1 connections ground filing provision will be added, add valve MV2 connections ground filing provision
Repropellenting pipeline and vavuum pump, pipeline tie point is hunted leak, confirm that the leak rate of pipeline tie point meets to require；
(2) latching valve LV1, LV2 are opened, by adding valve MV1 tank Tank1s in parallel to two and tank Tank2 first to be filled out
Released after filling the operation of helium, the gas released out is sampled and chemically examined during helium of releasing, until gas sampled
Untill result of laboratory test meets the index of setting；
(3) close ground filing provision repropellenting pipeline, with vavuum pump will plus valve MV2 to latching valve LV3 and LV4 it
Between pipeline vacuumize, until in this section of pipeline vacuum meet require untill, close vavuum pump；
(4) open ground filing provision repropellenting pipeline, by filing provision repropellenting pipeline to plus valve MV2 it
Between be full of propellant in the pipeline that is formed, record satellite gross mass and centroid position under this state, add as satellite booster agent
The zero point of fluence measurement；
(5) open and add valve MV2, On board computer sends instructions to latching valve LV3, LV4 opens tank fluid path latching valve LV3 in parallel
And LV4, tank Tank1 and tank Tank2 are steadily filled from tank liquid in-out mouth, until completing specified adding amount
More than 90%, filing provision repropellenting pipeline is closed, tank Tank1 and tank are measured by centroid of satellite testboard
Repropellenting amount in the total adding amount of propellant and single tank Tank1, Tank2 in Tank2；
(6) filing provision repropellenting pipeline is opened, tank Tank1 and tank Tank2 are filled again, until tank
Adding amount in Tank1 and the total adding amounts of tank Tank2 and single tank Tank1, tank Tank2 reaches specified adding amount,
Tank fluid path latching valve LV3 and LV4 in parallel are closed, closes and adds valve MV2；
(7) from adding valve MV1 into tank Tank1 and tank Tank2 to be filled with helium up to the pressure in tank reaches simultaneously
It is required that.
2. a kind of Large Copacity according to claim 1 half manages formula surface tension propellant tank balance charging method in parallel, it is special
Sign is：The operation for carrying out first filling helium of releasing afterwards in step (2) in tank Tank1, tank Tank2 is：It is qualified with chemically examining
Helium be filled with tank Tank1 and tank Tank2 simultaneously, be charged to after certain pressure and carry out helium bleed air operation, in deflation course
Middle carry out gas sample, is chemically examined gas sampled, as chemically examine it is qualified if carry out step (3), if chemically examine it is unqualified if repeat
The operation of progress charge and discharge helium and gas sample is untill gas sampled chemical examination is qualified.
3. a kind of Large Copacity according to claim 1 half manages formula surface tension propellant tank balance charging method in parallel, it is special
Sign is：The steady charging method of tank progress is in described step (5)：The filling flow control allowed according to used tank
System requires, sets more than two traffic phases to be filled according to the difference of adding amount, to ensure the steady of filling process；Together
When, the total adding amount of propellant and single tank in tank Tank1 and tank Tank2 in parallel are measured by centroid of satellite testboard
Repropellenting amount in Tank1, tank Tank2, when adding amount difference is larger in tank Tank1 in parallel and tank Tank2, temporarily
Stop filling, stood, until adding amount meets that balance is further continued for filling after requiring in tank Tank1 in parallel and tank Tank2,
Until adding amount reaches more than the 90% of specified adding amount.
4. a kind of Large Copacity according to claim 1 half manages formula surface tension propellant tank balance charging method in parallel, it is special
Sign is：Propellant in single tank Tank1, tank Tank2 is measured in described step (5) by centroid of satellite testboard to add
The method of fluence is：
In step (4) by centroid of satellite testboard measurement obtain satellite booster agent fill measurement zero point when satellite quality and
Barycenter initial parameter matrix a0=[m0, X0, Y0], in filling process certain moment t measurements in real time obtain satellite quality and barycenter it is real
When parameter matrix at=[mt, Xt, Yt], then repropellenting amount calculates in single tank Tank1 and tank Tank2 under the moment
Method is as follows：
<mrow>
<mfenced open = "[" close = "]">
<mtable>
<mtr>
<mtd>
<mi>&Delta;</mi>
<msub>
<mi>m</mi>
<mn>1</mn>
</msub>
</mtd>
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<mi>&Delta;m</mi>
<mn>2</mn>
</msub>
</mrow>
</mtd>
</mtr>
</mtable>
</mfenced>
<mo>=</mo>
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<mfenced open = "[" close = "]">
<mtable>
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<mtd>
<mn>1</mn>
</mtd>
</mtr>
<mtr>
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<msub>
<mi>X</mi>
<mn>1</mn>
</msub>
</mtd>
<mtd>
<msub>
<mi>X</mi>
<mn>2</mn>
</msub>
</mtd>
</mtr>
<mtr>
<mtd>
<msub>
<mi>Y</mi>
<mn>1</mn>
</msub>
</mtd>
<mtd>
<msub>
<mi>Y</mi>
<mn>2</mn>
</msub>
</mtd>
</mtr>
</mtable>
</mfenced>
<mrow>
<mo>-</mo>
<mn>1</mn>
</mrow>
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<mfenced open = "[" close = "]">
<mtable>
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<mtd>
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<mi>m</mi>
<mi>t</mi>
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<mn>0</mn>
</msub>
</mtd>
</mtr>
<mtr>
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<msub>
<mi>m</mi>
<mi>t</mi>
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<msub>
<mi>X</mi>
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<mi>m</mi>
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<msub>
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<mi>Y</mi>
<mn>0</mn>
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</mrow>
</mtd>
</mtr>
</mtable>
</mfenced>
</mrow>
Wherein, mtThe quality of the satellite obtained for centroid of satellite testboard measurement, (Xt, Yt) measured for centroid of satellite testboard
The centroid position coordinate of the satellite body coordinate system horizontal direction arrived；Δm1With Δ m2Respectively tank Tank1 and tank Tank2
Interior repropellenting amount, (X1, Y1) and (X2, Y2) it is respectively tank Tank1 and tank Tank2 in satellite body coordinate system water
Square to position coordinates.
5. a kind of Large Copacity according to claim 1 half manages formula surface tension propellant tank balance charging method in parallel, it is special
Sign is：Charging method is tank Tank1 and tank Tank2 progress propellant in parallel again in described step (6)：According to step
(5) repropellenting amount Δ m in each tank in parallel obtained in by centroid of satellite testboard measurement1With Δ m2, it is calculated
Each tank is to reach the propulsion dosage that specified adding amount need to fill again, tank Tank1, tank Tank2 is carried out adding again one by one
Note, until the single case repropellenting amount and total adding amount in tank Tank1 and tank Tank2 reach specified adding amount and be
Only；Wherein, charging method is as follows again for single tank：The latching valve LV3 or LV4 corresponding to the tank fluid path that needs to fill again is set to be
Opening, latching valve LV3 or LV4 corresponding to another tank fluid path are closed mode, the filling stream allowed according to single tank
Amount requires to set filling flow, the tank is filled again, until adding amount reaches the propellant that the tank need to fill again again
Untill amount, latching valve corresponding to the tank fluid path that the needs fill again is closed.
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| CN107776916B (en) * | 2017-09-14 | 2019-06-18 | 北京控制工程研究所 | A method of the adjustment discharge based on no gas bypassing propulsion system |
| CN108454887B (en) * | 2018-02-06 | 2020-04-10 | 北京空间飞行器总体设计部 | Balanced-discharge two-component propulsion device and control method |
| CN108195608A (en) * | 2018-02-13 | 2018-06-22 | 北京控制工程研究所 | A kind of Vane Type Tank ground propellant big flow repeats plus discharge method and control system |
| CN109854957B (en) * | 2019-03-05 | 2021-02-05 | 北京控制工程研究所 | Filling method of closed parallel storage tank with low filling rate |
| CN110131073B (en) * | 2019-05-06 | 2022-02-18 | 上海空间推进研究所 | Space propulsion system suitable for filling of large-capacity storage tank |
| CN110525693B (en) * | 2019-07-23 | 2021-02-09 | 中国空间技术研究院 | Comprehensive balance emission adjusting method for parallel storage tank propulsion system |
| CN112319861B (en) * | 2020-10-26 | 2022-04-22 | 中国运载火箭技术研究院 | Storage box layout method for horizontal take-off and landing spacecraft mass center control |
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