CN102441345A - Reaction kettle - Google Patents

Abstract

The invention discloses a reaction kettle capable of manufacturing various types of chemical raw materials by a continuous hydrogenation method, which comprises a cylinder and a pipeline. The cylinder is welded with a reinforcing tube; and the pipeline is fixed on the reinforcing tube. Before being welded, the reinforcing tube can be processed according to the outer diameter of the welded pipeline; simultaneously, the welded part can be also machined, thereby the welding strength of the pipeline is greatly reduced, the welded part is quite uniform, the pipeline is protected, the service life of the pipeline is prolonged, and the maintenance difficulty of the reaction kettle is reduced; once the pipeline is worn and needs to be replaced, no hole needs to be opened on the reaction kettle, the welding area of the reaction kettle is not increased, and no new leak point is added. The pipeline welding structure on the reaction kettle is applicable to other types of reaction kettles.

Description

A kind of agitated reactor

Technical field

The present invention relates to a kind of pressure vessel, relate in particular to a kind of agitated reactor that a kind of continously hydrogen adding method is produced various industrial chemicals.

Background technology

Along with continuous progress in science and technology; The required products such as sorbierite, xylitol, maltitol and furfuryl alcohol of industry such as chemical industry and pharmacy all are to adopt the continously hydrogen adding method to produce, and the equipment of core is exactly a kind of agitated reactor the most in the equipment of producing this series products, on agitated reactor, directly is welded with various pipelines; Like pipelines such as charging, discharging and catalyst; Manufacturer requires the volume of agitated reactor also increasing in order to improve production capacity simultaneously, and maximum will reach 30m ³Require operating pressure will reach 10-13MPa in process of production, operating temperature will reach 150-200 ℃, and this has higher requirement to welding various pipelines; Require each welding position all must reach designing requirement, do not allow to exist defectives such as crackle and pin hole.This on agitated reactor directly the method for welded pipe line have following shortcoming: 1. because the size of agitated reactor is bigger, can't on lathe, process in perforate on the agitated reactor, the hole of therefore being opened is irregular, difficulty when welded pipe line; 2. in case wearing and tearing appear in the pipeline of welding when needing to change, must carry out perforate in original welding position, so not only increase the difficulty of keeping in repair, and the area of welding is further enlarged, the probability that leakage point occurs can increase.

Summary of the invention

The object of the invention is to provide a kind of agitated reactor novel pipeline connection technique, needs the position elder generation weld reinforcement pipe of welded pipe line at agitated reactor, then with pipeline welding on the reinforcement pipe, reduce the welding difficulty of pipeline.

The present invention is achieved in that a kind of agitated reactor, comprises cylindrical shell and pipeline, it is characterized in that: on said cylindrical shell, be welded with the reinforcement pipe, said pipeline is fixed on the said reinforcement pipe.

The present invention compared with prior art has following advantage:

1. because various pipelines are welded on the cylindrical shell through the reinforcement pipe, the reinforcement pipe can carry out machining before welding, greatly reduce the welding difficulty of pipeline like this, and is more even in the welding position, and pipeline is played a protective role, and prolonged the service life of pipeline.

2. adopt reinforcement pipe welded pipe line; Reduced the intensity of safeguarding of agitated reactor; In case when pipeline appearance wearing and tearing need to change, need not perforate once more on agitated reactor, as long as polished in the welding position in reinforcement tube and tube road; So just can not increase the bonding area of agitated reactor, can not increase new leakage point yet.

Description of drawings

Fig. 1 is the structural representation of a kind of agitated reactor according to the invention

1. cylindrical shell 2. pipelines 3. reinforcement pipes

The specific embodiment

As can be seen from Figure 1, a kind of agitated reactor comprises cylindrical shell 1 and pipeline 2, on cylindrical shell 1, is welded with reinforcement pipe 3, and pipeline 2 is fixed on the reinforcement pipe 3.The reinforcement pipe is before welding; Can process according to the size of the outer diameter tube of being welded; Machining also can be carried out in the position of its welded pipe line simultaneously, greatly reduces the weld strength of pipeline like this, and the welding position is more even simultaneously; Pipeline is played a protective role, prolonged the service life of pipeline.The Welding Structure of pipeline is adapted on other various types of agitated reactors on this agitated reactor.

Claims (1)

1. an agitated reactor comprises cylindrical shell (1) and pipeline (2), it is characterized in that: on said cylindrical shell (1), be welded with reinforcement pipe (3), said pipeline (2) is fixed on the said reinforcement pipe (3).

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