Manufacturing method of gas assembly and positioning fixture thereof
A manufacturing method and a technology for positioning fixtures, which are applied in the direction of manufacturing tools, other household appliances, household appliances, etc., can solve the problems of strong assembly, difficult replacement, poor interchangeability of branch pipes, etc., and achieve the effect of strong interchangeability
Inactive Publication Date: 2011-08-31
AVIC PST NANFANG GAS TURBINE COMPLETE MFG & INSTALLATION
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Problems solved by technology
[0004] In the process of implementing the gas assembly, the inventors found that: the branch pipes of the existing gas assembly have poor interchangeability, are not easy to replace during assembly and repair, and at the same time there is a phenomenon of strong assembly, which leads to cracks in the weld seam and pipe wall
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[0029] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.
[0030] figure 2 A schematic diagram of the structure of the gas assembly is shown, image 3 show figure 2 Sectional view A-A of the gas assembly shown. Such as figure 2 with image 3 As shown, the gas assembly 10 includes: a first semi-circular pipe 11a, a second semi-circular pipe 11b, several gas outlet joints 13, two air intake joints 15, and several branch pipes 17, wherein the first semi-circular pipe 11a, the second semi-circular pipe 11a The ring pipe 11b, several gas outlet joints 13 and two air intake joints 15 form a gas main pipe. Wherein, the two inlet joints 15 are respectively located at the two joint positions of the first and half ring pipes 11a, 11b.
[0031] The manufacturing method of the gas assembly of the present inven...
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The invention discloses a manufacturing method of gas assembly, comprising the manufacturing of gas main and the manufacturing of branch pipes, wherein the manufacturing method of the gas main comprises the following steps: locating the first semi-ring canal and the second semi-ring canal in a circular location channel, wherein the two joints of the first semi-ring canal and the second semi-ring canal are respectively assembled with an air inlet adaptor; locating each air inlet adaptor by utilizing a locating element; welding the air inlet adaptor with the first semi-ring canal and the second semi-ring canal after locating; locating each air outlet adaptor in the preset position of the circular location channel by taking the inner bore and the peripheral surface of the air outlet adaptor as the locating criteria; and welding the air outlet adaptor with the first semi-ring canal and the second semi-ring canal after locating. The invention also discloses a positioning fixture which is used in the manufacturing method of the gas assembly. The gas assembly processed according to the manufacturing method in the invention has strong interchangeability, and solves the problem of gas leakage due to the occurrence of cracks on the welding line and the tube wall caused by excessive stress of the gas assembly.
Description
technical field [0001] The invention relates to a manufacturing method of a gas assembly of a gas turbine and a special positioning fixture used in the manufacturing method. Background technique [0002] Gas turbines have been widely used in airplanes, ships, tanks, heavy vehicles, etc., and their structures are well known. Recently, the generator sets constructed with gas turbines have been further developed, especially in the use of medium and low calorific value working fluids such as gas from coking plants or natural gas from oil fields. [0003] figure 1 A schematic diagram showing the installation of the gas assembly of the gas turbine in the casing of the combustor. Such as figure 1 As shown, the gas assembly 10 is installed on the combustion chamber casing 20 of the gas turbine, and is composed of a gas main pipe 11, left and right conduits 15 connected to the gas main pipe 11, and several branch pipes 17, wherein the left and right conduits 15 provide gas fuel to...
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IPC IPC(8): B23K31/02B23K37/053B23K101/10
Inventor 黄桂良王海星周志敏冯骏
Owner AVIC PST NANFANG GAS TURBINE COMPLETE MFG & INSTALLATION