Cryogenic propellant storage tank for space

Abstract

The invention discloses a low-temperature propellant storage tank for space, comprising: a storage tank shell, blades, vertical pipes, liquid outlet pipes, collectors, heat insulation structures, exhaust pipes, exhaust combined valves and booster pipes; heat insulation The structure is evenly covered on the outside of the tank shell; one end inside the tank shell is provided with blades, standpipes and collectors; one end of the collector is set on the inner wall of the tank shell; the other end of the collector is provided with a standpipe ; A number of blades are evenly distributed radially around the standpipe; a liquid outlet pipe passing through the heat insulation structure is arranged under the collector; pressure pipe; the exhaust pipe is also provided with an exhaust combination valve on the port outside the heat insulation structure. The invention realizes the positioning and management of the propellant, ensures the supply of the propellant without entrainment of air, and can position the air cushion at a fixed position, which facilitates the exhaust of the storage tank; it can also effectively solve the problem of long-term storage of low-temperature propellant and microgravity environment Propellant stratification problem.

Description

technical field [0001] The invention relates to the field of propellant storage tanks, in particular to a low-temperature propellant storage tank which can be applied to satellites, upper stages, spaceships, interstellar probes and space stations. Background technique [0002] The propellant tank is a device for propellant management and control in the spacecraft power system to provide the engine with air-free propellant. Propellants are divided into normal temperature propellants and low temperature propellants. The design and application of normal temperature propellant tanks are relatively mature. Low temperature propellants have become the development direction of future spacecraft power systems due to their high performance and environmental protection characteristics. However, due to the low boiling point, it is easy to evaporate and difficult to store. At the same time, during the flight process of spacecraft orbit change, maneuvering, and orbit maintenance, the prob...

AI Technical Summary

Problems solved by technology

However, due to the low boiling point, it is easy to evaporate and difficult to store. At the same time, during the flight process of spacecraft orbit change, maneuvering, and orbit maintenance, the problem of propellant stratification and non-directionality is serious. The design of the normal temperature propellant storage tank cannot solve these problems. This greatly limits the application of cryogenic propellants in space long-term on-orbit missions

Images