CN104075105B - A kind of hot supercharging xenon loading system for satellite electric propulsion system - Google Patents
A kind of hot supercharging xenon loading system for satellite electric propulsion system Download PDFInfo
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Abstract
The present invention relates to satellite electric propulsion system hot supercharging xenon loading system, belong to high-purity xenon filling experimental technique field of satellite electric propulsion system.This system makes the hot supercharging device of xenon in system flow into gas cylinder on star; This system comprises xenon storage tank, storage tank weighing electronic scale, source of the gas valve, hot supercharging device A, hot supercharging device B, liquid nitrogen valve A, liquid nitrogen valve B, liquid nitrogen valve C, liquid nitrogen container, helium tank, helium valve, control and data acquisition module, purity analysis instrument, fill valve, gas cylinder load cell on gas cylinder, vacuum valve, vacuum pump, recovery valve, recycling module, bleed valve and star on star.The present invention is according to the technical requirements of the high-purity xenon filling of satellite electric propulsion system, and appropriate design has also built model assay systems.This pilot system have cleanliness high, accurate temperature control can be carried out, reliability is high, module permutation is convenient, the survey data advantage such as complete comprehensively, effectively can verify the feasibility that hot supercharging xenon is annotated and rationality.
Description
Technical field
The present invention relates to satellite electric propulsion system hot supercharging xenon loading system, belong to high-purity xenon filling experimental technique field of satellite electric propulsion system, be applicable to the high-purity xenon of all employings and test as the filling of the electric propulsion system of working medium.
Background technique
At present, the propulsion system type of flying in-orbit is more, wherein electric propulsion system developed rapidly owing to having very high specific impulse in the last few years, especially gain great popularity with Hall electric propulsion system and ion-conductance propulsion system, be usually used in satellite platform and perform that north-south position keeps, gesture stability (momenttum wheel unloading) and orbits controlling, even the task such as synchronous orbit transfer.In addition electric propulsion system can complete the task that Conventional propulsion systems cannot complete, as survey of deep space, interplanetary travel etc. need the task of large △ y and satellite, the exact posture of microsatellite controls and the task such as satellite constellation networking control.
Hall electric propulsion system using xenon as working medium and ion-conductance propulsion system need to carry out xenon filling before satellite launch, adopt xenon as the electric propulsion system of working medium, its performance is directly by the impact of xenon purity, harsh requirement is had: require that the xenon purity being filled into propulsion system is higher than 99.995% to the xenon purity after filling, the content of water and oxygen is no more than 2ppm, and the purity in xenon source is only 99.9995%.So how to guarantee that xenon purity and system pressure, temperature, adding amount etc. meet the demands in Large Copacity xenon filling process, ensureing that in filling process, xenon is in gaseous state or supercritical state, is a great problem that electric propulsion system, especially long lifetime electric propulsion system realize through engineering approaches application.
Complete the xenon filling of electric propulsion system, the hot supercharging loading system that can be designed by fall pressure filling loading system, compressor mechanical compress loading system and the present invention is realized.Its pressure that declines is filled filling and is referred to that, under the effect of pressure reduction, the xenon in xenon storage tank is filled to the process of gas cylinder on star, after storage pressure on storage tank and star is equal, cannot continue filling process, and be only applicable to the operating mode that adding amount is less in this way; The filling of compressor mechanical compress adopts compressor that xenon is carried out supercharging, make its continuous electric propulsion system flowed on star, but the method existing defects in fifth wheel control, temperature control etc., and noise is larger, the same with falling to pressing filling method, be only applicable to the operating mode that adding amount is less; And hot supercharging xenon loading system well solves the difficult problems such as fifth wheel control, temperature control, the reliability of method can be improved simultaneously by the quantity increasing core component, become the most important technology realizing Large Copacity high-purity xenon filling task.From 2012, start research and the investigation of hot supercharging xenon loading system, and finally complete the design work of this loading system.
The reduction of the pressure following temperature of xenon and reducing, raise with the rising of temperature, hot supercharging xenon charging method is this thermodynamic properties utilizing xenon, first liquid nitrogen is passed into hot supercharging device, high-pressure bottle temperature in device is reduced, thus the xenon pressure in container is reduced with the reduction of temperature, lower than the pressure of xenon in xenon storage tank, under the effect of pressure reduction, the xenon in xenon storage tank constantly can flow into high-pressure bottle; When xenon intake reaches required value, stop logical liquid nitrogen, start the heating equipment in hot supercharging device, high-pressure bottle temperature is raised, thus the xenon pressure in container is raised, higher than the pressure of xenon in gas cylinder on star, under the effect of pressure reduction with the rising of temperature, xenon in high-pressure bottle constantly can flow into gas cylinder on star, thus completes the filling process of xenon.Said process circulation is carried out, until adding amount meets mission requirements.
For realizing the loading technique of high-purity xenon, the present invention specify that overall plan and the function of filling pilot system.And use the method, complete the demonstration test of high-purity xenon filling, demonstrate this loading system reasonable.
Abroad just start the research to high-purity xenon loading technique from the later stage nineties in last century, drop into huge man power and material, carry out a large amount of demonstration tests, by technological accumulation for many years, in high-purity xenon filling, possess stronger technical capability.Wherein, Air Liquid Co adopts the loading technique being similar to hot supercharging, successfully have developed the high-purity xenon loading system of Large Copacity, its filling ability reaches 1200kg, article is " PatrickBRAVAIS; RolandSALOME, C é cileGELAS.IMPROVEDXENONLOADINGEQUIPMENTWITHLOADINGCAPACI TYUPTO1200KGFORALPHABUS.AIRLIQUIDEDTA.CNESToulouse ".And although some article does not relate to concrete xenon loading technique, but its content contains the recovery and supply process that utilize xenon physical property to carry out, can be used as the reference of hot supercharging xenon charging method, article is " GaniB.Ganapathi*andJiunnJenqWu.XenonRecoverySystemConcep tDemonstration.AIAA2006-5256 ".Domesticly still locate blank due to high-purity xenon loading technique, do not have document can reference.
Because high-purity xenon loading technique and correlation test checking relate to national security, the country having grasped this technology often carries out blockade on new techniques, the data that abroad can provide is very not comprehensive, certain reference function can only be played, just the performance index that can reach mainly are described, the design of all not mentioned pilot system composition, pilot system and verification experimental verification method in the related article delivered.So need to build pilot system voluntarily to the loading technique research of high-purity xenon, carry out a large amount of demonstration tests, sum up filling verification experimental verification method, obtain the sufficient firsthand information, these basic datas can not obtain from foreign literature.
In sum, satellite electric propulsion system hot supercharging xenon loading system realizes progressively realizing the achievement of groping and summing up in the process of through engineering approaches application at electric propulsion system, whole system is brand-new, domestic do not have relevant document and data to use for reference, and seldom discloses the similar pilot system of careless mistake abroad yet.The present invention, in order to realize high-purity xenon loading technique, in conjunction with practice and the experience of scientific research production process, proposes the pilot system of high-purity xenon filling first.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, satellite electric propulsion system hot supercharging xenon loading system is provided, effectively can complete the xenon filling task of satellite electric propulsion system.
The object of the invention is to be achieved through the following technical solutions.
Satellite electric propulsion system of the present invention hot supercharging xenon loading system, this system makes the hot supercharging device of xenon in system flow into gas cylinder on star; This system comprises xenon storage tank, storage tank weighing electronic scale, source of the gas valve, hot supercharging device A, hot supercharging device B, liquid nitrogen valve A, liquid nitrogen valve B, liquid nitrogen valve C, liquid nitrogen container, helium tank, helium valve, control and data acquisition module, purity analysis instrument, fill valve, gas cylinder load cell on gas cylinder, vacuum valve, vacuum pump, recovery valve, recycling module, bleed valve and star on star; Wherein in hot supercharging device A, gas cylinder A and electric heater A is housed; Gas cylinder B and electric heater B is housed in hot supercharging device B;
Above-mentioned all valves are pneumatic valve, control its opening and closing by control system;
Wherein xenon storage tank is positioned on storage tank weighing electronic scale, and is connected with hot supercharging device A, hot supercharging device B by source of the gas valve; Liquid nitrogen container is connected, for three supplies liquid nitrogen with hot supercharging device A, hot supercharging device B, recycling module respectively by liquid nitrogen valve A, liquid nitrogen valve B, liquid nitrogen valve C; Helium tank is connected, for it provides helium with gas cylinder, recycling module on hot supercharging device A, hot supercharging device B, star respectively by helium valve, fill valve, recovery valve; Purity analysis instrument is connected to the upstream of gas cylinder on star, for analyzing the purity of xenon in filling process; Control with data acquisition module for gathering weight, pressure, temperature, purity parameter in this system, and according to the opening and closing of each parameter situation control valve; On star, gas cylinder is connected with hot supercharging device A, hot supercharging device B by fill valve; Vacuum pump is connected, for it vacuumizes with gas cylinder, hot supercharging device A, hot supercharging device B, recycling module on star by fill valve, vacuum valve, recovery valve; Recycling module is connected, for the xenon in gas cylinder on hot supercharging device and star being reclaimed with gas cylinder on hot supercharging device A, hot supercharging device B, star by recovery valve, fill valve; Bleed valve is connected to the upstream of gas cylinder on star, for bleeding off the gas in system; On star, on gas cylinder star, gas cylinder load cell is weighed.
Satellite electric propulsion system hot supercharging xenon charging method comprises the following steps:
A. xenon filling pilot system is connected;
B. vacuum pump is started, open fill valve, vacuum valve and recovery valve, gas cylinder and recycling module on hot supercharging device A, hot supercharging device B, star are vacuumized, when degree of vacuum reaches 10Pa, closes above-mentioned valve (fill valve, vacuum valve and recovery valve), and stop vacuumizing;
C. open helium valve, fill valve, be filled with helium to gas cylinder on hot supercharging device A, hot supercharging device B, star, close helium valve; Whether analyze helium purity by purity analysis instrument to meet the demands, then open bleed valve, bleed off the helium in system, venting terminates rear closedown bleed valve, then closes fill valve;
C ' repeats step c, until helium purity meets the demands;
D. open source of the gas valve, fill valve, be filled with xenon to gas cylinder on hot supercharging device A, hot supercharging device B, star, close source of the gas valve; Analyze xenon purity by purity analysis instrument whether to meet the demands; Open liquid nitrogen valve C and supply liquid nitrogen to recycling module, close liquid nitrogen valve C; Then open recovery valve, the xenon in system is reclaimed, reclaim and terminate rear closedown recovery valve, then close fill valve;
D ' repeats steps d, until xenon purity meets the demands;
E. open source of the gas valve, the xenon in xenon storage tank is filled to hot supercharging device A, hot supercharging device B; Open liquid nitrogen valve A, liquid nitrogen valve B after filling process terminates, supply liquid nitrogen to hot supercharging device A, hot supercharging device B, the xenon in xenon storage tank is drawn in hot supercharging device A and hot supercharging device B; By storage tank weighing electronic scale, xenon intake is weighed, when intake reaches required value, close source of the gas valve, liquid nitrogen valve A and liquid nitrogen valve B;
F. electric heater A and electric heater B is started, for the gas cylinder A in hot supercharging device and gas cylinder B heats; When the temperature of xenon in gas cylinder A and gas cylinder B reaches DEG C, open fill valve, by the xenon filling in gas cylinder A and gas cylinder B to gas cylinder on star; By gas cylinder load cell on star, xenon adding amount is weighed; When on gas cylinder A, gas cylinder B and star, storage pressure closes fill valve after balancing;
G. step e ~ f repeats, until adding amount meets the demands;
H. open recovery valve, the xenon in hot supercharging device A, hot supercharging device B and system pipeline is reclaimed; Off-test.
In whole process of the test, control the collection completing each parameter with data acquisition module, and control the opening and closing of each pneumatic valve.System connects the stainless steel pressure duct that pipeline used is high polishing.
Described recycling module comprises and reclaims gas cylinder, sealing cover and liquid nitrogen container, wherein liquid nitrogen container be upper shed, cylindrical container with thermal insulation layer; Liquid nitrogen pipeline sealing cover is equipped with, for being passed into by liquid nitrogen in liquid nitrogen container; First recovery gas cylinder is positioned in liquid nitrogen container, builds sealing cover, during recovery, liquid nitrogen is passed into liquid nitrogen container, to the cooling of recovery gas cylinder, open recovery valve afterwards and can complete recovery to xenon in system.
The present invention's beneficial effect is compared with prior art:
(1) the present invention is according to the technical requirements of the high-purity xenon filling of satellite electric propulsion system, and appropriate design has also built model assay systems.This pilot system have cleanliness high, accurate temperature control can be carried out, reliability is high, module permutation is convenient, the survey data advantage such as complete comprehensively, effectively can verify the feasibility that hot supercharging xenon is annotated and rationality.
(2) the present invention adopts pneumatic valve automatically to control, with system pressure, that temperature coordinates matching is strong, realize pneumatic valve switch control rule and filling process is coordinated to carry out, the automatic control of xenon suction process and filling process can be realized, also the xenon on process of the test culminant star in gas cylinder can be prevented to be back to pilot system, xenon filling experimental safe can be ensured, reliably carry out.
(3) test method of the present invention's employing is reasonable, feasible, workable, may be used for the filling test of larger xenon adding amount, also by increasing hot supercharging device quantity or increasing the volume of hot supercharging device mesohigh container, meet the filling mission requirements of larger adding amount; The realization of hot supercharging xenon loading technique, can promote the application of high-purity xenon in satellite electric propulsion system, thus accelerates the process that electric propulsion system realizes through engineering approaches application.
Accompanying drawing explanation
Fig. 1 is the composition schematic diagram of system of the present invention;
Fig. 2 is the schematic flow sheet of method of the present invention;
Fig. 3 is the structural representation of recycling module.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
Embodiment
As shown in Figure 1, this system comprises xenon storage tank 1, storage tank weighing electronic scale 2, source of the gas valve 3, hot supercharging device A4, hot supercharging device B5, liquid nitrogen valve A6, liquid nitrogen valve B7, liquid nitrogen valve C8, liquid nitrogen container 9, helium tank 10, helium valve 11, controls and data acquisition module 12, purity analysis instrument 13, fill valve 14, gas cylinder load cell 21 on gas cylinder 15, vacuum valve 16, vacuum pump 17, recovery valve 18, recycling module 19, bleed valve 20, star on star.
System connects the stainless steel pressure duct that pipeline used is high polishing, concrete Placement is as follows: wherein xenon storage tank 1 is positioned on storage tank weighing electronic scale 2, and adopts pressure duct it to be connected with source of the gas valve 3 and hot supercharging device A4, hot supercharging device B5; Adopt liquid nitrogen pipeline liquid nitrogen container 9, liquid nitrogen valve A6, liquid nitrogen valve B7, liquid nitrogen valve C8, hot supercharging device A4, hot supercharging device B5, recycling module 19 to be connected, liquid nitrogen pipeline outer wall needs to be wrapped with thermal insulation layer; High-voltage tube is adopted gas cylinder 15, recycling module 19 on helium tank 10 helium valve 11, fill valve 14, recovery valve 18, hot supercharging device A4, hot supercharging device B5, star to be connected; Purity analysis instrument 13 accesses pilot system by high-voltage tube; Startup valve used all has control wiring to be connected with data acquisition module 12 with control, can receive its control signal sent at any time; High-voltage tube is adopted vacuum pump 17, vacuum valve 16 to be connected into pilot system, for whole pilot system vacuumizes; High-voltage tube is adopted recycling module 19, recovery valve 18 to be accessed pilot system, for the xenon in gas cylinder on hot supercharging device and star being reclaimed; Bleed valve 20 is for bleeding off the gas in system, and wherein bleed line needs to be connected to outdoor; On star, on gas cylinder star, gas cylinder load cell 21 is weighed.
Adopt hot supercharging xenon filling pilot system, and adopt high-purity xenon and helium as test working medium, whole xenon filling process can be verified, comprise vacuumize, the displacement of helium replacement, xenon, xenon suction, xenon filling, the process such as xenon recovery, thus verify feasibility and the rationality of hot supercharging xenon charging method.
As shown in Figure 2, concrete steps are as follows: before on-test, should be ready in pilot system so parts, and adopt high pressure air pipeline to be connected by individual parts with liquid nitrogen pipeline respectively, concrete connecting means as mentioned before, thus completes building of whole pilot system; By controlling to start vacuum pump with data acquisition module, and open vacuum valve 16, fill valve 14, recovery valve 18, vacuumize gas cylinder on star and ground loading system, degree of vacuum is evacuated to 10Pa; Helium valve 11 is opened, open fill valve 14, recovery valve 18 simultaneously, on star, gas cylinder and ground loading system carry out helium replacement, helium replacement pressure is 1MPa, purity analysis is carried out to the helium be filled with in system, requires water content≤2ppm, oxygen content≤2ppm, then open bleed valve 20, bleed off the helium in system; Open source of the gas valve 3, fill valve 14, xenon is filled to 0.5MPa to gas cylinder, ground loading system on star, purity analysis is carried out to the xenon be filled with in system, require water content≤2ppm, oxygen content≤2ppm, then opens liquid nitrogen valve C8, is filled with liquid nitrogen in recycling module, open recovery valve 18, xenon remaining in system after purity analysis is reclaimed; Open liquid nitrogen valve A6, liquid nitrogen valve B7, liquid nitrogen is filled with to hot supercharging device, gas cylinder A41 in device, gas cylinder B51 temperature are reduced, open source of the gas valve 3, xenon is sucked into high-pressure bottle, and suction process is weighed by storage tank weighing electronic scale 2, when weight reaches mission requirements, by controlling and data acquisition module 12 automatic closing gas source valve 3, cut off xenon suction process; Start electric heater A42, electric heater B52, gas cylinder A41 in hot supercharging device, gas cylinder B51 are heated up, when the pressure of xenon in container is higher than on star during gas cylinder 15, control automatically to open fill valve 14 with data acquisition module 12, start to carry out xenon filling, in filling process, carried out the measurement of adding amount by gas cylinder load cell on star 21; Xenon sucks and filling process will circulate carries out, until adding amount reaches mission requirements; Open liquid nitrogen valve C8, lead to liquid nitrogen cooling to recycling module 19, open recovery valve 18, xenon remaining in system is recycled to recycling module 19.Hot supercharging xenon filling process terminates.
As shown in Figure 3, described recycling module 19 comprises and reclaims gas cylinder 191, sealing cover 192 and liquid nitrogen container 193, wherein liquid nitrogen container 193 be upper shed, cylindrical container with thermal insulation layer; Liquid nitrogen pipeline sealing cover 192 is equipped with, for being passed into by liquid nitrogen in liquid nitrogen container 193; First recovery gas cylinder 191 is positioned in liquid nitrogen container 193, builds sealing cover 192, during recovery, liquid nitrogen is passed into liquid nitrogen container 193, recovery gas cylinder 191 is lowered the temperature, open recovery valve 18 afterwards and can complete recovery to xenon in system.
The unspecified part of the present invention belongs to general knowledge as well known to those skilled in the art.
Claims (4)
1. for the hot supercharging xenon loading system of satellite electric propulsion system, this system comprises xenon storage tank (1), source of the gas valve (3), control and data acquisition module (12), fill valve (14), recovery valve (18), recycling module (19), it is characterized in that: also comprise storage tank weighing electronic scale (2), hot supercharging device A (4), hot supercharging device B (5), liquid nitrogen valve A (6), liquid nitrogen valve B (7), liquid nitrogen valve C (8), liquid nitrogen container (9), helium tank (10), helium valve (11), purity analysis instrument (13), gas cylinder (15) on star, vacuum valve (16), vacuum pump (17), gas cylinder load cell (21) on bleed valve (20) and star,
Wherein in hot supercharging device A (4), gas cylinder A (41) and electric heater A (42) is housed; Gas cylinder B (51) and electric heater B (52) is housed in hot supercharging device B (5);
Xenon storage tank (1) is positioned on storage tank weighing electronic scale (2), and is connected with hot supercharging device A (4), hot supercharging device B (5) by source of the gas valve (3);
Liquid nitrogen container (9) is connected with hot supercharging device A (4) by liquid nitrogen valve A (6);
Liquid nitrogen container (9) is connected with hot supercharging device B (5) by liquid nitrogen valve B (7);
Liquid nitrogen container (9) is connected with recycling module (19) by liquid nitrogen valve C (8);
Helium tank (10) is connected with hot supercharging device A (4), hot supercharging device B (5) by helium valve (11);
Helium tank (10) is connected with gas cylinder on star (15) with fill valve (14) by helium valve (11);
Helium tank (10) is connected with recycling module (19) with recovery valve (18) by helium valve (11);
Purity analysis instrument (13) is connected to the upstream of gas cylinder on star (15);
Control the upstream being connected to gas cylinder on star (15) with data acquisition module (12);
On star, gas cylinder (15) is connected with hot supercharging device A (4), hot supercharging device B (5) by fill valve (14);
Vacuum pump (17) is connected with gas cylinder on star (15) with vacuum valve (16) by fill valve (14);
Vacuum pump (17) is connected with hot supercharging device A (4), hot supercharging device B (5) by vacuum valve (16);
Vacuum pump (17) is connected with recycling module (19) with recovery valve (18) by vacuum valve (16);
Recycling module (19) is connected with hot supercharging device A (4), hot supercharging device B (5) by recovery valve (18);
Recycling module (19) is connected with gas cylinder on star (15) with fill valve (14) by recovery valve (18);
Bleed valve (20) is connected to the upstream of gas cylinder on star (15);
On star, gas cylinder load cell (21) is placed on below gas cylinder on star (15).
2. satellite electric propulsion system according to claim 1 hot supercharging xenon loading system, is characterized in that: all valves are pneumatic valve, controls its opening and closing by control system.
3. satellite electric propulsion system according to claim 1 hot supercharging xenon loading system, is characterized in that: system connects the stainless steel pressure duct that pipeline used is high polishing.
4. satellite electric propulsion system according to claim 1 hot supercharging xenon loading system, it is characterized in that: described recycling module (19) comprises and reclaims gas cylinder (191), sealing cover (192) and liquid nitrogen container (193), wherein liquid nitrogen container (193) be upper shed, with the cylindrical container of thermal insulation layer; Sealing cover (192) covers on liquid nitrogen container (193); (192) are equipped with liquid nitrogen pipeline to sealing cover; Reclaim gas cylinder (191) and be arranged in liquid nitrogen container (193).
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| CN104459036B (en) * | 2014-11-06 | 2016-03-30 | 北京控制工程研究所 | High-purity xenon PVT property detection device and method in a kind of closed container |
| CN104456079B (en) * | 2014-11-06 | 2017-11-07 | 北京控制工程研究所 | A kind of electronics depressurized system |
| CN105402596B (en) * | 2015-10-23 | 2018-12-21 | 北京控制工程研究所 | A kind of transferring device for the filling of satellite electric propulsion system xenon |
| CN108204521B (en) * | 2018-01-30 | 2023-06-30 | 邯郸钢铁集团有限责任公司 | Pretreatment system and pretreatment method for high-purity rare gas cylinder |
| CN109026580A (en) * | 2018-08-07 | 2018-12-18 | 柳盼 | A kind of delivery method of Hall thruster gaseous propellant |
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