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Machining stress removal system and method of low-frequency pulsation suppression device for ground tests

A pulsation suppression and ground test technology, applied in the field of machining stress removal systems, can solve problems such as pulsation suppression devices that cannot be applied to a double jacket structure

Active Publication Date: 2020-10-27
XIAN AEROSPACE PROPULSION TESTING TECHN INST
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Problems solved by technology

[0006] In order to solve the problem in the background technology that the existing stress relief method cannot be applied to the pulsation suppression device with a double-layer jacket structure, the present invention provides a processing stress removal system and method for a low-frequency pulsation suppression device for ground testing

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  • Machining stress removal system and method of low-frequency pulsation suppression device for ground tests

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Embodiment Construction

[0036] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0037] In the description of the present invention, it should be noted that the terms "first" and "second" are used for description purposes only, and should not be understood as indicating or implying relative importance.

[0038] In the description of the present invention, it should also be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be interpreted in a broad sense, for example, it can be a fixed connection or a flexible connection. D...

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Abstract

The invention discloses a machining stress removal system and method of a low-frequency pulsation suppression device for ground tests. The system comprises a pressurizing unit, a low-temperature medium container, a low-temperature medium supply pipeline, a gas-liquid discharge pipeline, a liquid discharge pipeline, a constant flow gas supply device and a constant flow gas supply pipeline. The pulsation suppression device is filled with constant flow gas through the constant flow gas supply device according to the characteristics of the pulsation suppression device working in a low temperaturemedium, so that the liquid level in a sealing chamber of the pulsation suppression device is continuously changed, and thus, a gas-liquid alternating oscillation state is generated; and the pressurizing unit is used for applying different pressure to the low-temperature medium container and switching back and forth, so that a pressure fluctuation is generated by the low-temperature medium in the process of filling the pulsation suppression device with the low-temperature medium; and the machining stress removal system enables the pulsation suppression device to generate vibration, and realizesthe elimination of the machining stress of the pulsation suppression device. The method has a good stress removal effect and does not cause the deformation of the equipment.

Description

technical field [0001] The invention relates to a system and method for removing processing stress of a low-frequency pulsation suppression device for ground testing. Background technique [0002] In order to meet the propellant supply requirements of a new generation of high-thrust rocket engines, a low-frequency pulsation suppression device for ground tests with a double-layer jacket structure is now provided. The structure of the device is as follows figure 1 As shown, it includes an inner cylinder 01 and an outer shell 02. The outer shell 02 is coaxially sleeved outside the inner tube 01, and a sealed chamber 03 is formed between the two. The inner tube 01 is provided with a plurality of liquid injection holes 04 as a low-temperature medium. The passage from the inner tube 01 into the sealed chamber 03; because the device works in a strong vibration environment, it is different from the compensation method of installing bellows on one layer of the conventional double-lay...

Claims

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Application Information

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IPC IPC(8): C21D10/00
CPCC21D10/00
Inventor 唐斌运陈雨郭玉凤高强罗帅帅宋阳
Owner XIAN AEROSPACE PROPULSION TESTING TECHN INST
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