阅读说明：本技术 一种大型排气系统引射模块制造方法 (Manufacturing method of injection module of large exhaust system ) 是由 陈立平 庄宇 于 2020-12-14 设计创作，主要内容包括：本发明公开了一种大型排气系统引射模块制造方法,解决了排气系统引射模块制质量无法保证的问题,其技术方案要点是：所述的制造方法包括如下步骤：S1：筒体加工,取筒体原料下料、筒体切坡口、筒体卷筒、筒体组焊纵缝、筒体组焊环缝、筒体无损检测、筒体开孔；S2：集气环组件加工,集气管采用中频加热形成弯管、对弯管进行组对焊接形成集气环、集气环焊接无损检测、集气环开孔、集气环焊接进气口接管和出气口接管；S3：喷管加工,取喷管原料锻件、粗铣加工、去应力热处理、精铣加工、喷管钻孔；S4：喷管装配,制造连接件、连接件与喷管装配、连接件与筒体焊接、喷管与连接件热处理,达到了高质量引射模块加工制造的目的。(The invention discloses a manufacturing method of an injection module of a large-scale exhaust system, which solves the problem that the manufacturing quality of the injection module of the exhaust system cannot be ensured, and the key points of the technical scheme are as follows: the manufacturing method comprises the following steps: s1: processing a barrel, namely taking a barrel raw material for blanking, cutting a groove on the barrel, assembling and welding a barrel winding drum, assembling and welding a longitudinal seam on the barrel, assembling and welding a circular seam on the barrel, carrying out nondestructive detection on the barrel, and perforating the barrel; s2: processing a gas collecting ring assembly, wherein a gas collecting pipe adopts intermediate frequency heating to form a bent pipe, the bent pipe is assembled and welded to form a gas collecting ring, the gas collecting ring is welded and subjected to nondestructive testing, the gas collecting ring is perforated, and the gas collecting ring is welded with a gas inlet connecting pipe and a gas outlet connecting pipe; s3: processing a spray pipe, namely taking a spray pipe raw material forge piece, roughly milling, performing stress relief heat treatment, finely milling and drilling the spray pipe; s4: the method comprises the steps of spray pipe assembly, connector manufacturing, connector and spray pipe assembly, connector and barrel welding and spray pipe and connector heat treatment, and achieves the purpose of high-quality injection module processing and manufacturing.)

1. The manufacturing method of the injection module of the large-scale exhaust system comprises a cylinder body (1), a gas collecting ring assembly and a spray pipe (2), wherein the gas collecting ring assembly comprises a gas collecting ring (3), a gas inlet connecting pipe (4) and a gas outlet connecting pipe (5), and is characterized in that the spray pipe is assembled with a connecting piece (6), and the manufacturing method comprises the following steps:

s1: processing a barrel, namely taking a barrel raw material for blanking, cutting a groove on the barrel, assembling and welding a barrel winding drum, assembling and welding a longitudinal seam on the barrel, assembling and welding a circular seam on the barrel, carrying out nondestructive detection on the barrel, and perforating the barrel;

s2: processing a gas collecting ring assembly, wherein a gas collecting pipe adopts intermediate frequency heating to form a bent pipe, the bent pipe is assembled and welded to form a gas collecting ring, the gas collecting ring is welded and subjected to nondestructive testing, the gas collecting ring is perforated, and the gas collecting ring is welded with a gas inlet connecting pipe and a gas outlet connecting pipe;

s3: processing a spray pipe, namely taking a spray pipe raw material forge piece, roughly milling, performing stress relief heat treatment, finely milling and drilling the spray pipe;

s4: and (3) assembling the spray pipe, processing the connecting piece, assembling the connecting piece and the spray pipe, welding the connecting piece and the barrel, and carrying out heat treatment on the spray pipe and the connecting piece.

2. The manufacturing method of the injection module of the large exhaust system according to claim 1, wherein in the step S1, the cylinder is rounded after the longitudinal seam of the cylinder is welded.

3. The manufacturing method of the ejector module of the large exhaust system according to claim 1, wherein in step S1, the welding nondestructive testing of the gas collecting ring adopts 100% ray detection and 100% magnetic powder detection.

Technical Field

The invention belongs to the technical field of ejectors, and particularly relates to a manufacturing method of an ejector module of a large-scale exhaust system.

Background

The high enthalpy gas wind tunnel facility is an important infrastructure for developing a certain aircraft, and has great significance for promoting the development of certain aircrafts and combined engines in China. The exhaust system injection module injects fuel gas in the fuel gas wind tunnel into air through high-pressure airflow, so that continuous operation of fuel gas wind tunnel facilities is guaranteed, and the exhaust system injection module is an important component of high enthalpy fuel gas wind tunnel test facilities.

However, the quality of the manufactured injection module is poor in the existing injection module manufacturing method, and the application of a large-scale high-precision exhaust system cannot be met.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a manufacturing method of a high-quality large-scale exhaust system injection module.

The purpose of the invention is realized as follows: a manufacturing method of an injection module of a large-scale exhaust system comprises a cylinder body, a gas collecting ring assembly and a spray pipe, wherein the gas collecting ring assembly comprises a gas collecting pipe, a gas inlet connecting pipe and a gas outlet connecting pipe, the spray pipe is assembled with a connecting piece, and the manufacturing method comprises the following steps:

s1: processing a barrel, namely taking a barrel raw material for blanking, cutting a groove on the barrel, assembling and welding a barrel winding drum, assembling and welding a longitudinal seam on the barrel, assembling and welding a circular seam on the barrel, carrying out nondestructive detection on the barrel, and perforating the barrel;

s2: processing a gas collecting ring assembly, wherein a gas collecting pipe adopts intermediate frequency heating to form a bent pipe, the bent pipe is assembled and welded to form a gas collecting ring, the gas collecting ring is welded and subjected to nondestructive testing, the gas collecting ring is perforated, and the gas collecting ring is welded with a gas inlet connecting pipe and a gas outlet connecting pipe;

s3: processing a spray pipe, namely taking a spray pipe raw material forge piece, roughly milling, performing stress relief heat treatment, finely milling and drilling the spray pipe;

s4: assembling the spray pipe, manufacturing a connecting piece, assembling the connecting piece and the spray pipe, welding the connecting piece and the cylinder body, and carrying out heat treatment on the spray pipe and the connecting piece.

The invention is further optimized as follows: in the step S1, after the longitudinal seam of the cylinder is welded, the cylinder is rounded.

The invention is further optimized as follows: in the step S1, the nondestructive testing of the welding of the gas collecting ring adopts 100% ray detection and 100% magnetic powder detection.

The invention is further optimized as follows: in step S4, the connecting member is threadedly assembled with the nozzle.

Compared with the prior art, the invention has the outstanding and beneficial technical effects that: the injection module is subjected to nondestructive testing after the barrel is manufactured, so that the quality of the formed barrel is effectively ensured, the nondestructive testing is performed after the gas collecting ring is welded, the forming quality of the gas collecting ring is ensured, the deformation of the welded nozzle is prevented by adopting stress-relief heat treatment after the nozzle is subjected to rough milling, meanwhile, the nozzle is connected with the barrel through the connecting piece, the stability of the connection between the nozzle and the barrel is ensured, and the overall quality of the injection module is improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

figure 2 is a schematic view of the cartridge of the present invention.

In the figure: 1-cylinder, 2-spray pipe, 3-gas collecting pipe, 4-gas inlet connecting pipe, 5-gas outlet connecting pipe and 6-connecting piece.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the following description, with reference to the drawings in the embodiments of the present invention, clearly and completely describes the technical solution in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

The embodiment provides a manufacturing method of an injection module of a large-scale exhaust system, which comprises a cylinder body 1, a gas collecting ring assembly and a spray pipe 2, wherein the gas collecting ring assembly comprises a gas collecting ring 3, a gas inlet connecting pipe 4 and a gas outlet connecting pipe 5, the spray pipe is assembled with a connecting piece 6, and the manufacturing method comprises the following steps:

s1: barrel processing, taking barrel raw materials for blanking: the diameter of the cylinder body is phi 2950mm, the wall thickness is 25mm, and the length is 2775 mm; groove cutting of the cylinder: processing a welding groove by gas cutting; barrel winding drum: adopting a plate bending machine to process a winding drum; assembling and welding longitudinal seams of the cylinder; rounding the cylinder: the roundness error of the cylinder is less than 2 mm; assembling and welding a circular seam of the cylinder body, and carrying out nondestructive detection on the cylinder body: performing 100% ultrasonic detection and 100% magnetic powder detection, wherein the qualified grade is I grade, and a cylinder is provided with a hole;

s2: processing a gas collecting ring assembly, wherein a gas collecting pipe forms a bent pipe by adopting intermediate frequency heating: the gas collecting pipe adopts phi 860X30 material 16 Mn; the bent pipe is assembled and welded to form a gas collecting ring: 4, forming a phi 4060 gas collecting ring by the bent pipe section; carrying out nondestructive testing on welding of the gas collecting ring and opening the gas collecting ring: the gas collecting ring is used for gas cutting to form holes, so that the cutting precision is ensured; the gas collecting ring is welded with a gas inlet connecting pipe and a gas outlet connecting pipe;

s3: processing the spray pipe, namely taking a spray pipe raw material forging: normalizing the 16MnII forge piece; rough milling: reserving 5mm of allowance for raw materials; stress relief heat treatment; fine milling; drilling holes in the spray pipe; processing and checking: the feeler gauge is qualified when the feeler gauge does not exceed 0.5 mm.

S4: assembling the spray pipe and processing a connecting piece; the connecting piece and the spray pipe are assembled through a tool, and the tool is connected with the connecting piece through a bolt, so that the precision requirement is ensured; the connecting piece is welded with the cylinder; the connecting piece is welded with the spray pipe; thermal treatment of the spray pipe and the connecting piece: and (4) reserving in the heat treatment process, and dismantling the tool after the heat treatment is finished.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.