A full-system cold flow test system for a liquid rocket pressurization and delivery system

By designing a full-system cold flow test system for a liquid rocket pressurization and delivery system, and using a liquid discharge flow limiting device to simulate liquid and gas discharge in the tank, the problem of the authenticity of the full-system cold flow test under non-ignition conditions of the rocket engine was solved, and the system was fully verified and tested efficiently.

CN116696611BActive Publication Date: 2026-06-30GUANGZHOU ZHONGKE AEROSPACE EXPLORATION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
GUANGZHOU ZHONGKE AEROSPACE EXPLORATION TECH CO LTD
Filing Date
2023-06-28
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing technologies cannot fully simulate the cold flow test of a liquid rocket pressurization and delivery system without igniting the rocket engine, resulting in insufficient test authenticity and reliability.

Method used

A full-system cold flow test system for a liquid rocket pressurization and delivery system was designed, including a storage tank, a pressurization system, a delivery system, and a water tank. Liquid discharge limiting devices such as liquid flow meters, pneumatic regulating valves, and liquid flow limiting orifice plates were used to simulate liquid and gas discharge in the storage tank, thereby achieving comprehensive verification of the system.

Benefits of technology

Without changing the system hardware connections, multiple simulation methods for the booster delivery system were realized, which improved the realism and reliability of the test, simplified the test process, saved resources, and improved the test efficiency.

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Abstract

This application provides a full-system cold flow test system for a liquid rocket pressurization and delivery system. The system includes: a storage tank, a pressurization system, a delivery system, and a water tank. The storage tank contains liquid. The pressurization system is connected to the top of the storage tank and is used to increase the pressure in the storage tank. The delivery system includes a drain pipe and a liquid discharge flow limiting device. The liquid discharge flow limiting device is installed on the drain pipe. One end of the drain pipe is connected to the bottom of the storage tank, and the other end extends into the water tank. The drain pipe is used to deliver the liquid from the storage tank to the water tank. The liquid discharge flow limiting device is used to control the discharge flow rate of the liquid from the storage tank. This application comprehensively simulates a full-system cold flow test without engine ignition, improving the realism and reliability of the test.
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