A method for manufacturing a jacketed container with an inner cylinder as an inner bevel
A manufacturing method and inner groove technology, which can be used in manufacturing tools, using stable tension/pressure to test material strength, welding equipment, etc., can solve the problem that the welding quality of the container is difficult to improve, and the inner cylinder cannot be fully processed into inner grooves, etc. problems, to achieve the effect of improving production efficiency and quality, improving welding quality, and strong operability
Active Publication Date: 2020-11-20
SHANXI YANG MEI CHEM IND MACHINERY
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[0004] In order to solve the technical problem that the inner cylinder cannot be completely processed into inner bevels in the production process of the jacketed vessel, the present invention provides a method for manufacturing the jacketed vessel with the inner cylinder as the inner bevel
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[0015] A method for manufacturing a jacketed vessel with an inner cylinder with an inner bevel, comprising the following steps: (1) A hole with a diameter smaller than the manhole is preliminarily opened on the inner cylinder at the position where the manhole is to be opened, and the remaining pipe joints of the inner cylinder are also made The inner groove is formed; the inner cylinder is pair-welded, and the arc plate left by the pre-opening is welded to the pre-opening from the outside, and the arc plate is opened to connect the water injection pipe and the pressure gauge, and the inner cylinder is tested. pressure;
[0016] (2) The arc plate can be retained or removed, and the jacket and the inner cylinder should be set together, and the manhole with a diameter larger than the pre-opening and an inner bevel will be processed at the position of the pre-opening hole, and the jacket assembly welding is completed After the pressure test;
[0017] (3) Carry out the overall wel...
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Abstract
The invention relates to a production technology of the jacketed vessel, in particular to a manufacturing and pressure testing method for a jacketed vessel with an inner cylinder as the inner groove.The problem that the quality of the container welding is difficult to improve due to the failure of an inner cylinder to be fully processed into an inner groove in the manufacturing process of an existing jacketed vessel is solved. The method comprises the following steps that (1) a hole with the diameter less than the diameter of a herringbone hole is pre-formed in the position, prepared to be formed with the herringbone hole, of the inner cylinder, group welding is conducted on the inner cylinder, an arc plate left by pre-hole-forming is welded to the pre-formed hole from the exterior, the opening hole of the arc plate is connected with a water injection pipe and a pressure gauge, and the pressure testing is conducted on the inner cylinder; (2) a jacket and the inner cylinder are mountedin a sleeved mode, the herringbone hole with the aperture greater than the pre-formed hole and used as the inner groove is continue to be processed in the position of the pre-formed hole, and the pressure testing after the jacket group welding is conducted; and (3) the equipment whole group welding is conducted. The manufacturing and pressure testing method is suitable for the pressure testing ofthe jacketed vessel with the inner cylinder as the inner groove, the welding seam groove can be processed according to the requirements, the pressure testing is completed, and the processing qualityis improved.
Description
technical field [0001] The invention relates to the production technology of a jacketed container, in particular to a method for manufacturing a jacketed container whose inner cylinder is an inner bevel. Background technique [0002] The jacketed vessel is a common type of vessel in the manufacture of pressure vessels. Generally, the jacketed vessel needs to undergo three pressure tests, that is, after the inner cylinder pair welding is completed, the jacket welding is completed, and the equipment is assembled and welded as a whole. However, due to the clamping Due to the special structure of the jacket container, the nozzles of the equipment should not be opened and assembled before the jacket welding is completed, but the pressure test of the inner cylinder must be carried out before the jacket welding, so as to repair the unqualified weld. If the equipment needs to use the inner bevel for the closing mouth of the inner cylinder, it cannot be welded, which makes the pressu...
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IPC IPC(8): B23K31/02B23P15/00G01N3/12G01M3/02
Inventor 贾杨咸耀龙刘斌
Owner SHANXI YANG MEI CHEM IND MACHINERY