Integrated forging method for transition section and barrel body of hydrogenation reactor

Abstract

The invention relates to an integrated forging method for a transition section and a barrel body of a hydrogenation reactor, and belongs to the field of machining and forging. For solving the problemsthat the transition section and the barrel body of the hydrogenation reactor are difficult to close in the prior art, and for cutting manufacturing cost and improving product quality, the forging method comprises the following steps that firstly, the characteristic dimension parameters of the barrel transition section are determined, and a special close-up hammer head for a shell close-up is manufactured according to the characteristic dimension; secondly, the barrel body is forged, a steel ingot is subjected to upsetting and punching, core rod drawn-out is conducted, and then hole-expandingis conducted to the size of a part; and finally, the close-up is pressed for a plurality of times, the special close-up hammer head is used for pressing a workpiece to perform local close-up on a port, and the workpiece is rotated and pressed for multiple times so as to complete forging forming of the transition section of the barrel body. According to the integrated forging method, the integratedforging of the transition section and the adjacent barrel body of the hydrogenation reactor is realized, the production cost is reduced, the production efficiency is improved, the number of welding lines of the whole hydrogenation reactor is reduced, and the working stability of the hydrogenation reactor is improved.

Description

technical field [0001] The invention relates to the technical field of integrated forging, in particular to an integrated forging method for a hydrogenation reactor transition section and a cylinder body. Background technique [0002] In recent years, with the vigorous development of my country's national economy, the demand for energy and chemical raw materials is increasing, and the development of hydrogenation reactor equipment in the direction of large-scale, heavy-duty, and integration has become an inevitable trend. Reactor equipment is required to work under more severe high-temperature and high-pressure hydrogen-rich conditions, which will inevitably put forward higher requirements for the operation stability of the hydrogenation reactor. Therefore, the integrated forming technology of the hydrogenation reactor will definitely attract the attention of the majority of petrochemical container design institutes. [0003] At present, the manufacturing cost of the tradit...

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Problems solved by technology

[0004] In view of the above analysis, the present invention aims to provide an integrated forging method for the transition section and cylinder of the hydrogenation reactor, which is used to solve the problem of high manufacturing cost and backward manufacturing process of the existing hydrogenation product forgings, which are forged separately and then welded and formed. The low yield of molten steel and the large number of welds lead to poor product quality stability

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