CN116513492B - Surface tension storage tank on-orbit supplementing system and surface tension storage tank on-orbit supplementing method - Google Patents

Abstract

The application relates to the field of aerospace, in particular to a surface tension storage tank on-orbit supplementing system and a surface tension storage tank on-orbit supplementing method, wherein the surface tension storage tank on-orbit supplementing system comprises a supplementing device and a supplemented device, the supplemented device comprises a supplemented storage tank, a first gas channel, a first gas cylinder, pressurizing equipment, a pressurizing branch, a gas channel disconnection device passive end, a liquid channel disconnection device passive end, a first gas supply loop, a first liquid supply loop, a communicating branch, a gas channel blowing-out part and a liquid channel blowing-out part; the replenishing device comprises a replenishing storage tank, a second gas circuit, a second gas cylinder, a second gas supply loop, a second liquid supply loop, a gas circuit disconnection device driving end and a liquid circuit disconnection device driving end. According to the surface tension storage tank on-orbit supplementing system and the surface tension storage tank on-orbit supplementing method provided by the application, the probability of generating an air cushion is effectively reduced, the difficulty that the propellant flows into the supplemented storage tank with the supplementing storage tank is further reduced, and the smooth supplementing of the propellant is ensured.

Description

Surface tension storage tank on-orbit supplementing system and surface tension storage tank on-orbit supplementing method

Technical Field

The application relates to the field of aerospace, in particular to an on-orbit supplementing system and an on-orbit supplementing method for a surface tension storage tank.

Background

With the rapid development of space technology, on-orbit propellant supplement technology becomes an important point of on-orbit service. The on-orbit propellant supplement can effectively prolong the service life of the on-orbit aircraft, and is a content which can best embody the economic benefit of on-orbit service. The existing surface tension storage tank is more and more reused in the future large spacecraft due to light weight, high discharge efficiency and simple structure, but the extrusion gas in the storage tank cannot be directly compressed into high-pressure gas to be recovered into a high-pressure gas cylinder due to gas-liquid mixing, so that the extrusion gas in the storage tank can form an air cushion in the replenishing process, if the air is discharged and discharged, the air is wasted, but the air cushion is not discharged and is discharged more and more, and the replenishing of the propellant is more and more difficult.

Disclosure of Invention

The application aims to provide an on-orbit supplementing system and an on-orbit supplementing method for a surface tension storage tank, which solve the technical problems that the existing surface tension storage tank in the prior art is of a gas-liquid mixed structure, the extruded gas in the storage tank cannot be directly compressed into high-pressure gas to be recovered into a high-pressure gas cylinder, the extruded gas in the storage tank can form an air cushion in the supplementing process, if the air is discharged and decompressed, the waste of the gas can be caused, but the air cushion without discharging and decompressing is higher and higher, and the supplementing of a propellant is more and more difficult.

According to a first aspect of the application there is provided an in-orbit replenishment system for a surface tension tank comprising replenishment means and replenished means;

the supplemented device comprises a supplemented storage tank, a first gas circuit, a first gas cylinder, pressurizing equipment, a pressurizing branch circuit, a gas circuit breaking device passive end, a liquid circuit breaking device passive end, a first gas supply loop, a first liquid supply loop, a communication branch circuit, a gas circuit blowing-out part and a liquid circuit blowing-out part;

the first end of the supplemented storage tank can be communicated with the first air bottle through the first air circuit, the first end of the supplemented storage tank can be communicated with the air circuit breaking device passive end through the first air supply circuit, and the second end of the supplemented storage tank can be communicated with the liquid circuit breaking device passive end through the first liquid supply circuit;

the supercharging equipment is arranged on the supercharging branch, two ends of the supercharging branch can be respectively communicated with the first end of the supplemented storage tank and the passive end of the gas circuit disconnection device, and the gas circuit blowing-off part can be communicated with the supercharging branch;

the first air supply circuit and the first liquid supply circuit can both be communicated via the communication branch, and the liquid path blowing-out part can be communicated with the communication branch;

the replenishing device comprises a replenishing storage tank, a second gas circuit, a second gas cylinder, a second gas supply loop, a second liquid supply loop, a gas circuit disconnect device driving end and a liquid circuit disconnect device driving end;

the first end of the additional storage tank can be communicated with the second gas cylinder through the second gas circuit, the first end of the additional storage tank can be communicated with the driving end of the gas circuit breaking device through the second gas supply circuit, and the second end of the additional storage tank can be communicated with the driving end of the liquid circuit breaking device through the second liquid supply circuit;

when the supplementing device is in butt joint with the supplemented device, the driving end of the gas path disconnecting device is in butt joint with the passive end of the gas path disconnecting device, and the driving end of the liquid path disconnecting device is in butt joint with the passive end of the liquid path disconnecting device, so that the supplementing device can supplement propellant for the supplemented device.

Preferably, the first air path comprises a first valve to control on-off of the first air path; the replenished device further comprises a third valve, and the first end of the replenished storage tank is communicated with the first air passage through the third valve;

the second air channel comprises a thirteenth valve for controlling the on-off of the second air channel; the replenishing device further comprises a fifteenth valve, and the first end of the replenishing storage tank is communicated with the second gas path through the fifteenth valve.

Preferably, the replenished device further comprises a first pressure sensor disposed at a first end of the replenished tank;

the replenishing device further includes a third pressure sensor disposed at the first end of the replenishing reservoir.

Preferably, the replenished device further comprises a second pressure sensor disposed at a second end of the replenished tank;

the replenishing device further comprises a fourth pressure sensor arranged at the second end of the replenishing storage tank.

Preferably, the supercharging branch comprises a first passage, a second passage, a seventh valve and a ninth valve, and the supercharging equipment is communicated with the passive end of the gas circuit breaking device through the first passage; the pressurizing device is communicated with the first end of the supplemented storage tank through the second passage, the seventh valve is arranged in the first passage, and the ninth valve is arranged in the second passage;

the supplemented device further comprises an air supply branch and a fifth valve, two ends of the air supply branch are respectively communicated with the first air bottle and the first passage, and the fifth valve is arranged on the air supply branch.

Preferably, the first air supply circuit includes an eighth valve that is communicable with the first end of the replenished tank via the second passage, the eighth valve being provided at a position of the first air supply circuit between the communication branch and the second passage;

the communication branch also comprises an eleventh valve for controlling the on-off of the communication branch.

Preferably, the replenished device further comprises a first pressure reducing valve, and the first pressure reducing valve is arranged between the first gas cylinder and the replenished storage tank;

the replenishing device further comprises a second pressure reducing valve, and the second pressure reducing valve is arranged between the second gas cylinder and the replenishing storage tank.

Preferably, the replenished device further comprises a first thruster capable of communicating with the second end of the replenished tank;

the replenishing device further includes a second thruster that is capable of communicating with the second end of the replenishing tank.

According to the second aspect of the application, an on-orbit supplementing method for a surface tension storage tank is provided, and the on-orbit supplementing system for the surface tension storage tank according to any one of the above technical schemes is used, so that the on-orbit supplementing method for the surface tension storage tank has all the beneficial technical effects of the on-orbit supplementing system for the surface tension storage tank, and is not repeated herein. Specifically, the surface tension tank on-orbit supplementing method comprises the following steps:

docking, namely docking the driving end of the gas circuit breaking device with the passive end of the gas circuit breaking device, and docking the driving end of the liquid circuit breaking device with the passive end of the liquid circuit breaking device;

detecting air tightness, namely opening the thirteenth valve, the eleventh valve, the seventh valve and the ninth valve to enable the air in the second air cylinder to be filled in the second air path, the second air supply loop, the first air supply loop, the communication branch and the first liquid supply loop, observing parameters of the third pressure sensor, and judging whether the air tightness of the supplemented device and the air tightness of the supplemented device are good;

evacuating the detection gas, closing the eleventh valve, communicating the liquid path blowing-out part with the first liquid supply loop, and evacuating the gas in the first liquid supply loop;

propellant replenishing, namely opening the third valve, the ninth valve, the seventh valve and the fifteenth valve, opening the pressurizing device, pressurizing and conveying the gas in the replenished storage tank into the replenishing storage tank through the driving of the pressurizing device, so that the pressure in the replenishing storage tank is higher than the pressure in the replenishing storage tank, and pressing the liquid in the replenishing storage tank into the replenishing storage tank through the second liquid supply loop and the first liquid supply loop until replenishing is carried out, closing the pressurizing device, and closing the third valve, the ninth valve, the seventh valve and the fifteenth valve;

blowing off residual liquid, opening the thirteenth valve and the eleven valve, and communicating the liquid path blowing-off part with the communication branch, so that gas in the second gas cylinder is transferred to the first liquid supply loop and the second liquid supply loop to blow off propellant remained in the first liquid supply loop and the second liquid supply loop to the liquid path blowing-off part for discharging;

blowing off residual gas, closing the eleventh valve, opening the seventh valve, the eighth valve and the ninth valve, and communicating the gas path blowing-off part with the pressurizing branch, so that the gas in the second gas cylinder is transferred to the pressurizing branch to blow off the propellant remained in the first gas supply loop, the second gas supply loop and the pressurizing branch to the gas path blowing-off part for discharging;

and separating, namely disconnecting the driving end of the gas circuit breaking device from the passive end of the gas circuit breaking device, and disconnecting the driving end of the liquid circuit breaking device from the passive end of the liquid circuit breaking device.

Preferably, between the residual gas blowing step and the separation step, further comprising:

the first gas cylinder is supplemented with gas, pressurizing equipment is started, and the fifth valve and the eighth valve are opened, so that the gas in the second gas cylinder sequentially passes through the second gas circuit, the second gas supply circuit, the first gas supply circuit, the second passage, the pressurizing equipment and the gas supply branch circuit to be supplemented into the first gas cylinder;

and (3) secondary air exhaust, namely closing pressurizing equipment, closing the fifth valve and the second air supply loop after the air supplementing of the first air bottle is finished, and communicating the air path blowing-out part with the pressurizing branch so as to exhaust residual air in the first air supply loop, the second air supply loop, the pressurizing branch and the air supply branch.

Compared with the prior art, the application has the beneficial effects that:

according to the surface tension storage tank on-orbit supplementing system provided by the application, the pressurizing branch connected with the first air supply loop in parallel is arranged, when the compressed air forms an air cushion in the supplementing process, so that the propellant is difficult to supplement, the surface tension storage tank on-orbit supplementing system can regulate the air pressure of the air in the pipeline through the pressurizing equipment, and the air channel blowing-out part capable of being communicated with the pressurizing branch and the liquid channel blowing-out part capable of being communicated with the communicating branch are arranged, so that the air in the air loop (comprising the first air channel, the first air supply loop, the second air channel, the second air supply loop, the pressurizing branch and the air supply branch) of the surface tension storage tank on-orbit supplementing system can be discharged through the air channel blowing-out part, and the liquid in the liquid loop (comprising the first liquid supply branch, the second liquid supply branch and the communicating branch) of the surface tension storage tank on-orbit supplementing system can be discharged through the liquid blowing-out part, so that the smooth supplementing of the propellant is ensured.

In order to make the above objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present application, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a surface tension tank on-orbit replenishment system according to an embodiment of the present application;

fig. 2 is a schematic flow chart of an on-orbit supplementing method for a surface tension tank according to an embodiment of the present application.

Reference numerals:

1-a supplemented device; 11-a first gas cylinder; 12-a first valve; 13-a first pressure reducing valve; 14-a second valve; 15-a third valve; 16-a replenished tank; 17-fourth valve; 18-a first thruster; 41-supercharging equipment; 42-fifth valve; 43-sixth valve; 44-seventh valve; 45-eighth valve; 46-ninth valve; 47-air passage blow-off port; 48-tenth valve; 49-eleventh valve; 51-twelfth valve; 52-a liquid path blowing port; 53-the passive end of the gas circuit disconnecting device; 54-a liquid path disconnection device passive end; 55-a first pressure sensor; 56-a second pressure sensor; 61-a first air path; 63-a first air supply circuit; 64-a first liquid supply circuit; 67-boost branch; 68-a communication branch; 69-an air supply branch;

2-a replenishing device; 21-a second cylinder; 22-thirteenth valve; 23-a second pressure reducing valve; 24-fourteenth valve; 25-fifteenth valve; 26-replenishing a storage tank; 27-sixteenth valve; 28-a second thruster; 31-seventeenth valve; 32-the active end of the gas circuit disconnecting device; 33-eighteenth valve; 34-the active end of the liquid path disconnecting device; 35-a third pressure sensor; 36-fourth pressure sensor; 62-a second air path; 65-a second air supply circuit; 66-second liquid supply loop.

Detailed Description

The following description of the embodiments of the present application will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the application are shown.

The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application.

All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

In the description of the present application, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.

An in-orbit surface tension tank replenishment system and a surface tension tank replenishment method according to some embodiments of the present application are described below with reference to fig. 1 and 2.

Referring to fig. 1, an embodiment of a first aspect of the present application provides an in-orbit replenishment system for a surface tension tank comprising a replenishment device 2 and a replenished device 1.

The replenished device 1 includes a replenished storage tank 16, a first gas path 61, a first gas bottle 11, a pressurizing device 41, a pressurizing branch 67, a gas path disconnecting device passive end 53, a liquid path disconnecting device passive end 54, a first gas supply loop 63, a first liquid supply loop 64, a communicating branch 68, a gas path blowing part and a liquid path blowing part. The first end of the replenished tank 16 may be in communication with the first gas bottle 11 via the first gas circuit 61, and the first end of the replenished tank 16 may be in communication with the gas circuit breaker passive end 53 via the first gas supply circuit 63, and the second end of the replenished tank 16 may be in communication with the liquid circuit breaker passive end 54 via the first liquid supply circuit 64. The pressurizing device 41 is disposed on the pressurizing branch 67, and both ends of the pressurizing branch 67 can also be respectively communicated with the first end of the replenished tank 16 and the air-path disconnecting device passive end 53. The air path blowing portion can communicate with the pressurization branch 67. Both the first air supply circuit 63 and the first liquid supply circuit 64 can communicate via a communication branch 68, and the liquid passage blowing portion can communicate with the communication branch 68.

The replenishing device 2 comprises a replenishing storage tank 26, a second gas path 62, a second gas cylinder 21, a second gas supply loop 65, a second liquid supply loop 66, a gas path disconnecting device driving end 32 and a liquid path disconnecting device driving end 34. The first end of the additional tank 26 can be in communication with the second gas cylinder 21 via the second gas circuit 62, and the first end of the additional tank 26 can be in communication with the gas circuit breaker active end 32 via the second gas supply circuit 65, and the second end of the additional tank 26 can be in communication with the liquid circuit breaker active end 34 via the second liquid supply circuit 66.

When the replenishing device 2 is docked with both the replenished device 1, the gas circuit breaker active end 32 is docked with the gas circuit breaker passive end 53, and the liquid circuit breaker active end 34 is docked with the liquid circuit breaker passive end 54, so that the replenishing device 2 can replenish the replenished device 1 with propellant.

According to the technical characteristics, by arranging the pressurizing branch 67 connected with the first air supply loop 63 in parallel, the surface tension storage tank on-orbit supplementing system can adjust the air pressure of the air in the pipeline through the pressurizing equipment 41, so that the pressure in the supplementing storage tank 26 is higher than the pressure in the supplemented storage tank 16, thereby forming a pressure difference between the supplementing device 2 and the supplemented device 1, enabling the propellant to smoothly flow into the supplemented storage tank 16 from the inside of the supplementing storage tank 26, effectively reducing the probability of forming an air cushion in the supplementing process of the extrusion air, and further reducing the difficulty of air supplementing. And, by providing the gas path blowing-out portion capable of communicating with the pressurizing branch 67 and the liquid path blowing-out portion capable of communicating with the communicating branch 68, the gas in the gas circuit (which may include the first gas circuit 61, the first gas circuit 63, the second gas circuit 62, the second gas circuit 65, the pressurizing branch 67, and the gas supply branch 69) of the surface tension tank on-orbit supplementing system can be discharged via the gas path blowing-out portion, and the liquid in the liquid circuit (which may include the first liquid supply branch, the second liquid supply branch, and the communicating branch 68) of the surface tension tank on-orbit supplementing system can be discharged via the liquid blowing-out portion, so that smooth supplementing of the propellant is ensured, and safe separation after the supplementing is completed is ensured.

Preferably, as shown in fig. 1, the first air path 61 may include a first valve 12 to control on-off of the first air path 61.

Preferably, as shown in fig. 1, the first air path 61 may further include a first pressure reducing valve 13, and the first pressure reducing valve 13 is disposed between the first air bottle 11 and the additional storage tank 16, so as to adjust the air pressure of the air flowing out from the first air bottle 11.

Preferably, as shown in fig. 1, the first air path 61 may further include a second valve 14, and the second valve 14 is disposed between the first pressure reducing valve 13 and the additional tank 16, so as to control the outflow of air pressure after the air pressure is regulated by the first pressure reducing valve 13.

Preferably, as shown in fig. 1, the replenished device 1 may further include a third valve 15, and the first end of the replenished tank 16 is communicated with the first air path 61 via the third valve 15, so as to control the on-off of the first end of the replenished tank 16 and the gas circuit.

Preferably, the replenishing device 1 may further include a first pressure sensor 55 disposed at the first end of the replenished tank 16, specifically, as shown in fig. 1, the first pressure sensor 55 may be disposed at the junction of the first air circuit 61 and the first air circuit 63, so as to detect the pressure in the pipe at the first end of the replenished tank 16, so as to know the condition of the pipe of the first air circuit 63 and the first air circuit 61 according to the pressure value parameter in the pipe at the first end of the replenished tank 16.

Optionally, the replenished device 1 may further include a second pressure sensor 56 disposed at the second end of the replenished tank 16 for detecting the pressure in the pipe at the second end of the replenished tank 16, so as to facilitate knowing the condition of the pipe of the replenished device 1 according to the pressure value parameter of the pipe at the two ends of the replenished tank 16.

Preferably, as shown in fig. 1, the pressurization leg 67 may include a first passageway, a second passageway, a seventh valve 44, and a ninth valve 46, both the pressurization device 41 and the air circuit disconnect device passive end 53 communicating via the first passageway. Both the pressurizing device 41 and the first end of the replenished tank 16 communicate via the second passage, and a seventh valve 44 is provided in the first passage to control the on-off of the first passage. The ninth valve 46 is disposed in the second passage to control the on-off of the second passage.

Preferably, as shown in fig. 1, the first air supply circuit 63 is capable of communicating with the first end of the replenished tank 16 via a second passage, and the ninth valve 46 is disposed between the junction of the first air supply circuit 63 and the second passage and the junction of the second passage and the first air passage 61.

Preferably, as shown in fig. 1, the first air supply circuit 63 may include an eighth valve 45 provided at a position of the first air supply circuit 63 between the communication branch 68 and the second passage to control on-off of both the first air supply circuit 63 and the second passage.

Preferably, as shown in fig. 1, the supplemented device 1 may further include an air supply branch 69 and a fifth valve 42, wherein two ends of the air supply branch 69 are respectively communicated with the first air bottle 11 and the first passage, and the fifth valve 42 is disposed on the air supply branch 69 to control on-off of the air supply branch 69.

Preferably, as shown in fig. 1, the replenished device 1 may further comprise a first thruster 18, the first thruster 18 being capable of communicating with the second end of the replenished tank 16, so that the replenished tank 16 provides the first thruster 18 with propellant.

Preferably, as shown in fig. 1, the replenished device 1 may further comprise a fourth valve 17, and the first thruster 18 communicates with the second end of the replenished tank 16 via the fourth valve 17, so as to control the on-off of both the first thruster 18 and the second end of the replenished tank 16.

Preferably, as shown in fig. 1, the air path blowing section may be in communication with the air supply branch 69. The connection between the air path blowing part and the air supply branch 69 is located between the first passage and the fifth valve 42 of the air supply branch 69, so that the substances in the pressurizing branch 67, the first air supply circuit 63 and the air supply branch 69 are discharged through the air path blowing part.

Alternatively, as shown in fig. 1, the air passage blowing portion may include a sixth valve 43 and an air passage blowing port 47 that communicate with each other to control communication of the air passage blowing port 47 with the air supply branch 69 through the sixth valve 43.

Optionally, as shown in fig. 1, the first supply circuit 64 may further include a tenth valve 48, where the tenth valve 48 may be disposed between the junction of the communication branch 68 and the first supply circuit 64 and the second end of the replenished tank 16, so as to control the opening and closing of the first supply circuit 64 and the second end of the replenished tank 16.

In an embodiment, similarly, as shown in fig. 1, the second air path 62 may include a thirteenth valve 22 to control the on/off of the second air path 62.

Similarly, as shown in fig. 1, the second gas path 62 may further include a second pressure reducing valve 23, and the second pressure reducing valve 23 is disposed between the second gas cylinder 21 and the additional tank 26 for adjusting the gas pressure of the gas flowing out from the second gas cylinder 21.

Preferably, as shown in fig. 1, the second air path 62 may further include a fourteenth valve 24, and the fourteenth valve 24 is disposed between the second pressure reducing valve 23 and the additional tank 26 so as to control the outflow of air pressure after the air pressure is regulated via the second pressure reducing valve 23.

Preferably, as shown in fig. 1, the replenishing device 2 may further include a fifteenth valve 25, and the first end of the replenishing tank 26 is communicated with the second air path 62 via the fifteenth valve 25, so as to control the on-off of the first end of the replenishing tank 26 and the gas circuit.

Preferably, as shown in fig. 1, the replenishing device 2 may further include a third pressure sensor 35 disposed at the first end of the replenishing tank 26, specifically, as shown in fig. 1, the third pressure sensor 35 may be disposed at the junction of the second air path 62 and the second air supply loop 65, so as to detect the pressure in the pipe at the first end of the replenishing tank 26, so as to know the condition of the pipes of the second air supply loop 65 and the second air path 62 according to the pressure value parameter in the pipe at the first end of the replenishing tank 26.

Optionally, the replenishing device 2 may further include a fourth pressure sensor 36 disposed at the second end of the replenished tank 16 for detecting the pressure in the pipe at the second end of the replenishing tank 26, so as to facilitate knowing the condition of the pipe of the replenishing device 2 according to the pressure value parameter of the pipe at the two ends of the replenishing tank 26.

Preferably, as shown in fig. 1, the second air supply circuit 65 may include a seventeenth valve 31 to control on/off of the second air supply circuit 65.

Preferably, as shown in fig. 1, the second liquid supply circuit 66 may include an eighteenth valve to control the on/off of the second liquid supply circuit 66.

Preferably, as shown in fig. 1, the replenishing device 2 may further comprise a second thruster 28, the second thruster 28 being capable of communicating with the second end of the replenishing reservoir 26, so that the replenishing reservoir 26 provides the second thruster 28 with propellant.

Preferably, as shown in fig. 1, the replenishing device 2 may further include a sixteenth valve 27, and the second thruster 28 communicates with the second end of the replenishing tank 26 via the sixteenth valve 27, so as to control the on-off of both the second thruster 28 and the second end of the replenishing tank 26.

In an embodiment, as shown in fig. 1, the communication branch 68 may further include an eleventh valve 49, so as to control the on/off of the communication branch 68 through the eleventh valve 49.

Preferably, as shown in fig. 1, the above-mentioned liquid circuit blowing-out portion may be provided at an end of the communication branch 68 near the first liquid supply circuit 64 to facilitate the discharge of the substances in the liquid circuit.

Alternatively, the liquid passage blowing section may include a twelfth valve 51 and a liquid passage blowing port 52 that communicate with each other to control communication of the liquid passage blowing port 52 with the communication branch 68 through the twelfth valve 51.

The embodiment of the second aspect of the present application further provides an on-orbit surface tension tank supplementing method, and the on-orbit surface tension tank supplementing system according to any one of the above embodiments is used, so that all the beneficial technical effects of the on-orbit surface tension tank supplementing system are provided, and no further description is given here.

Specifically, as shown in fig. 2, the steps may include:

s001, the gas circuit breaking device driving end 32 is abutted with the gas circuit breaking device driven end 53, and the liquid circuit breaking device driving end 34 is abutted with the liquid circuit breaking device driven end 54, so that the supplementing device 2 is abutted with the supplemented device 1, and a complete on-orbit supplementing system is formed.

And S002, airtightness detection is performed, the thirteenth valve 22, the fourteenth valve 24, the seventeenth valve 31, the eleventh valve 49, the seventh valve 44 and the ninth valve 46 are opened, so that the second gas cylinder 21 is filled with the gas in the second gas channel 62, the second gas supply circuit 65, the first gas supply circuit 63, the communication branch 68 and the first liquid supply circuit 64, in other words, the gas in the second gas cylinder 21 sequentially passes through the thirteenth valve 22, the second pressure reducing valve 23, the fourteenth valve 24, the seventeenth valve 31, the gas channel disconnecting device driving end 32, the gas channel disconnecting device driven end 53, the liquid channel disconnecting device driving end 34, the liquid channel disconnecting device driven end 54, the seventh valve 44 and the ninth valve 46, and the parameters of the third pressure sensor 35 are observed to determine whether the airtightness of the supplemented device 1 and the supplemented device 2 is good or not so as to ensure the safety of the propellant supplementing process.

Alternatively, the value of the first pressure sensor 55 may also be referred to in judging the air tightness of the connection of the supplied device 1 with the supplied device 2.

Preferably, the air tightness of the connection between the additional device 1 and the additional device 2 may be determined by observing the value of the third pressure sensor 35 for a predetermined time, and if the value of the third sensor is stable, it is considered that the air tightness is good.

S003, the detection gas is exhausted, the eleventh valve 49 is closed, the liquid path blowing-out part is communicated with the first liquid supply loop 64 (namely, the twelfth valve 51 is opened), and the gas in the first liquid supply loop 64 is exhausted through the liquid path blowing-out opening 52, so that the gas with the detection gas tightness is exhausted, the gas with the detection gas tightness is prevented from being mixed with the liquid propellant in the propellant replenishing step, and the probability that the gas with the detection gas tightness in a pipeline forms an air cushion to prevent the propellant from flowing is effectively reduced, and the propellant can smoothly flow from the replenishing storage tank 26 into the replenished storage tank 16 in the propellant replenishing step.

And S004 propellant replenishing, namely opening the third valve 15, the ninth valve 46, the seventh valve 44, the seventeenth valve 31, the fifteenth valve 25, the eighteenth valve 33 and the tenth valve 48, opening the pressurizing device 41, pressurizing and conveying the gas in the replenished storage tank 16 into the replenishing storage tank 26 through the driving of the pressurizing device 41, so that the pressure in the replenishing storage tank 26 is higher than the pressure in the replenishing storage tank 16, and using the pressure difference between the replenishing storage tank 26 and the replenishing storage tank 16, pressing the liquid (namely the propellant) in the replenishing storage tank 26 into the replenishing storage tank 16 through the second liquid supply loop 66 and the first liquid supply loop 64 until replenishing is completed, closing the pressurizing device 41, and closing the eighteenth valve 33, the tenth valve 48, the third valve 15, the ninth valve 46, the seventh valve 44, the seventeenth valve 31 and the fifteenth valve 25.

And S005 blows off the residual liquid, opens the thirteenth valve 22, the fourteenth valve 24, the seventeenth valve 31 and the eleventh valve 49, and communicates the liquid path blowing-off portion with the communication branch 68 (i.e. opens the twelfth valve 51), so that the gas in the second gas cylinder 21 is transferred to the first liquid supply loop 64 and the second liquid supply loop 66, so as to blow the propellant remained in the first liquid supply loop 64 and the second liquid supply loop 66 to the liquid path blowing-off port 52 for discharging, effectively evacuating the propellant remained in the liquid path, and ensuring the safety of the separation process described below.

S006 blows off residual gas, closes eleventh valve 49 and twelfth valve 51, opens seventh valve 44, eighth valve 45 and ninth valve 46, and communicates the gas circuit blowing off part with the pressurization branch 67 (i.e. opens sixth valve 43), so that the gas in the second gas cylinder 21 is transferred to the pressurization branch 67, and the propellant remained in the first gas supply circuit 63, the second gas supply circuit 65 and the pressurization branch 67 is blown to the gas circuit blowing off part to be discharged, so that the propellant remained in the gas pipeline is effectively exhausted, and if the subsequent step is a separation step, the safety of the separation step can be effectively ensured, and the gas pressure in the pipeline is prevented from interfering with the separation; if the subsequent step is a step of replenishing the first gas cylinder 11, mixing of propellant residues with the gas in the gas cylinder is avoided.

Optionally, the method may further include S007 supplying air to the first air bottle 11, opening the pressurizing device 41, and opening the fifth valve 42 and the eighth valve 45, so that air in the second air bottle 21 is sequentially supplied to the first air bottle 11 through the second air passage 62, the second air supply circuit 65, the first air supply circuit 63, the second passage, the pressurizing device 41 and the air supply branch 69, so that air in the second air bottle 21 directly flows into the first air bottle 11 through the air supply branch 69 after being pressurized by the pressurizing device 41, on one hand, by setting the pressurizing device 41, the air storage standard of the second air bottle 21 is effectively reduced, and even if the air pressure of the upper second air bottle 21 is lower than that of the first air bottle 11, the second air bottle 21 can still supply air to the first air bottle 11; on the other hand, by arranging the air supply branch 69, the first air bottle 11 is directly communicated with the pressurizing branch 67, so that the loss of air pressure in the conveying process of air is effectively reduced, and the energy loss in the air supplementing process is further reduced.

Preferably, the method may further comprise S008 secondary exhausting, and after the first air bottle 11 is completely supplemented with air, closing the pressurizing device 41, closing the fifth valve 42 and the second air supply circuit 65 (i.e. closing the seventeenth valve 31), and communicating the air path blowing-out portion with the pressurizing branch 67 (i.e. opening the sixth valve 43), so as to exhaust the residual air in the first air supply circuit 63, the second air supply circuit 65, the pressurizing branch 67 and the air supply branch 69, i.e. exhaust the air in the residual pipeline in the air supplementing step of the first air bottle 11, so as to ensure the safety of the separation step described below.

S009 separates, disconnects the gas circuit breaker active end 32 from the gas circuit breaker passive end 53, and disconnects the liquid circuit breaker active end 34 from the liquid circuit breaker passive end 54 to disconnect the replenishing device 2 from the replenished device 1, completing the on-orbit replenishing.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.

Claims (6)

1. An on-orbit supplementing system of a surface tension storage tank is characterized by comprising a supplementing device and a supplemented device,

the supplemented device comprises a supplemented storage tank, a first gas circuit, a first gas cylinder, pressurizing equipment, a pressurizing branch circuit, a gas circuit breaking device passive end, a liquid circuit breaking device passive end, a first gas supply loop, a first liquid supply loop, a communication branch circuit, a gas circuit blowing-out part and a liquid circuit blowing-out part;

the first end of the supplemented storage tank can be communicated with the first air bottle through the first air circuit, the first end of the supplemented storage tank can be communicated with the air circuit breaking device passive end through the first air supply circuit, and the second end of the supplemented storage tank can be communicated with the liquid circuit breaking device passive end through the first liquid supply circuit;

the supercharging equipment is arranged on the supercharging branch, two ends of the supercharging branch can be respectively communicated with the first end of the supplemented storage tank and the passive end of the gas circuit disconnection device, and the gas circuit blowing-off part can be communicated with the supercharging branch;

the first air supply circuit and the first liquid supply circuit can both be communicated via the communication branch, and the liquid path blowing-out part can be communicated with the communication branch;

the replenishing device comprises a replenishing storage tank, a second gas circuit, a second gas cylinder, a second gas supply loop, a second liquid supply loop, a gas circuit disconnect device driving end and a liquid circuit disconnect device driving end;

the first end of the additional storage tank can be communicated with the second gas cylinder through the second gas circuit, the first end of the additional storage tank can be communicated with the driving end of the gas circuit breaking device through the second gas supply circuit, and the second end of the additional storage tank can be communicated with the driving end of the liquid circuit breaking device through the second liquid supply circuit;

when the supplementing device is in butt joint with the supplemented device, the driving end of the gas circuit breaking device is in butt joint with the passive end of the gas circuit breaking device, and the driving end of the liquid circuit breaking device is in butt joint with the passive end of the liquid circuit breaking device, so that the supplementing device can supplement propellant for the supplemented device;

the first air passage comprises a first valve for controlling the on-off of the first air passage; the replenished device further comprises a third valve, and the first end of the replenished storage tank is communicated with the first air passage through the third valve;

the second air channel comprises a thirteenth valve for controlling the on-off of the second air channel; the replenishing device further comprises a fifteenth valve, and the first end of the replenishing storage tank is communicated with the second gas path through the fifteenth valve;

the replenished device further comprises a first pressure sensor arranged at the first end of the replenished storage tank;

the replenishing device further comprises a third pressure sensor arranged at the first end of the replenishing storage tank;

the supplemented device also comprises a second pressure sensor arranged at the second end of the supplemented storage tank;

the replenishing device further comprises a fourth pressure sensor arranged at the second end of the replenishing storage tank;

the supercharging branch comprises a first passage, a second passage, a seventh valve and a ninth valve, and the supercharging equipment is communicated with the passive end of the gas circuit disconnection device through the first passage; the pressurizing device is communicated with the first end of the supplemented storage tank through the second passage, the seventh valve is arranged in the first passage, and the ninth valve is arranged in the second passage;

the supplemented device further comprises an air supply branch and a fifth valve, two ends of the air supply branch are respectively communicated with the first air bottle and the first passage, and the fifth valve is arranged on the air supply branch.

2. The surface tension tank on-rail replenishment system according to claim 1, wherein the first air supply circuit comprises an eighth valve, the first air supply circuit being communicable with the first end of the replenished tank via the second passage, the eighth valve being provided at a position of the first air supply circuit between the communication branch and the second passage;

the communication branch also comprises an eleventh valve for controlling the on-off of the communication branch.

3. The surface tension tank on-orbit replenishment system as claimed in claim 1 or 2, wherein,

the supplemented device further comprises a first pressure reducing valve, and the first pressure reducing valve is arranged between the first gas cylinder and the supplemented storage tank;

the replenishing device further comprises a second pressure reducing valve, and the second pressure reducing valve is arranged between the second gas cylinder and the replenishing storage tank.

4. The surface tension tank on-orbit replenishment system as claimed in claim 1 or 2, wherein,

the replenished device further comprises a first thruster capable of communicating with the second end of the replenished tank;

the replenishing device further includes a second thruster that is capable of communicating with the second end of the replenishing tank.

5. An on-orbit supplementing method for a surface tension tank, which is characterized in that the surface tension tank on-orbit supplementing system as claimed in claim 2 is used,

the method comprises the following steps:

docking, namely docking the driving end of the gas circuit breaking device with the passive end of the gas circuit breaking device, and docking the driving end of the liquid circuit breaking device with the passive end of the liquid circuit breaking device;

detecting air tightness, namely opening the thirteenth valve, the eleventh valve, the seventh valve and the ninth valve to enable the air in the second air cylinder to be filled in the second air path, the second air supply loop, the first air supply loop, the communication branch and the first liquid supply loop, observing parameters of the third pressure sensor, and judging whether the air tightness of the supplemented device and the air tightness of the supplemented device are good;

evacuating the detection gas, closing the eleventh valve, communicating the liquid path blowing-out part with the first liquid supply loop, and evacuating the gas in the first liquid supply loop;

propellant replenishing, namely opening the third valve, the ninth valve, the seventh valve and the fifteenth valve, opening the pressurizing device, pressurizing and conveying the gas in the replenished storage tank into the replenishing storage tank through the driving of the pressurizing device, so that the pressure in the replenishing storage tank is higher than the pressure in the replenishing storage tank, and pressing the liquid in the replenishing storage tank into the replenishing storage tank through the second liquid supply loop and the first liquid supply loop until replenishing is carried out, closing the pressurizing device, and closing the third valve, the ninth valve, the seventh valve and the fifteenth valve;

blowing off residual liquid, opening the thirteenth valve and the eleven valve, and communicating the liquid path blowing-off part with the communication branch, so that gas in the second gas cylinder is transferred to the first liquid supply loop and the second liquid supply loop to blow off propellant remained in the first liquid supply loop and the second liquid supply loop to the liquid path blowing-off part for discharging;

blowing off residual gas, closing the eleventh valve, opening the seventh valve, the eighth valve and the ninth valve, and communicating the gas path blowing-off part with the pressurizing branch, so that the gas in the second gas cylinder is transferred to the pressurizing branch to blow off the propellant remained in the first gas supply loop, the second gas supply loop and the pressurizing branch to the gas path blowing-off part for discharging;

and separating, namely disconnecting the driving end of the gas circuit breaking device from the passive end of the gas circuit breaking device, and disconnecting the driving end of the liquid circuit breaking device from the passive end of the liquid circuit breaking device.

6. The surface tension tank on-orbit supplementing method according to claim 5, further comprising, between the step of blowing off residual gas and the step of separating:

the first gas cylinder is supplemented with gas, pressurizing equipment is started, and the fifth valve and the eighth valve are opened, so that the gas in the second gas cylinder sequentially passes through the second gas circuit, the second gas supply circuit, the first gas supply circuit, the second passage, the pressurizing equipment and the gas supply branch circuit to be supplemented into the first gas cylinder;

and (3) secondary air exhaust, namely closing pressurizing equipment, closing the fifth valve and the second air supply loop after the air supplementing of the first air bottle is finished, and communicating the air path blowing-out part with the pressurizing branch so as to exhaust residual air in the first air supply loop, the second air supply loop, the pressurizing branch and the air supply branch.