CN201375894Y

CN201375894Y - Hydrogenation reaction kettle

Info

Publication number: CN201375894Y
Application number: CN200920035495U
Authority: CN
Inventors: 朱小健; 叶兰
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-03-25
Filing date: 2009-03-25
Publication date: 2010-01-06
Anticipated expiration: 2019-03-25

Abstract

The utility model discloses a hydrogenation reaction kettle for manufacturing various chemical raw materials by using a continuous hydrogenation method. The kettle comprises a cylinder body and a pipeline, wherein, a reinforcement pipe is welded on the cylinder body, and the pipeline is fixed on the reinforcement pipe. Prior to welding, the reinforcement pipe can be processed according to the size of the outside diameter of the pipeline to be welded, and the position on the reinforcement pipe for welding the pipeline can also be subjected to mechanical workout, in terms of greatly reducing the welding intensity of the pipeline and ensuring more uniform welding position, thereby achieving the function of pipeline protection, and prolonging the service life of the pipeline. In terms of the utility model making the maintenance of the reaction kettle easier, when the pipeline is too worn to remain in service, replacement can be performed without re-boring on the reaction kettle, thereby avoiding increase in welding area on the reaction kettle and extra leakage points. The welding structure adopted by the pipeline on the reaction kettle is also applied to other types of reaction kettle.

Description

Hydrogenation reaction kettle

Technical field:

The utility model relates to a kind of pressure vessel, relates in particular to the hydrogenation reaction kettle 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, the equipment of core is exactly hydrogenation reaction kettle the most in the equipment of producing this series products, on reactor, directly be welded with various pipelines, as pipelines such as charging, discharging and catalyst, manufacturer requires the volume of 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 reactor directly the method for welded pipe line have following shortcoming: 1. because the size of reactor is bigger, can't process on lathe in perforate on the reactor, therefore the hole of being opened is irregular, difficulty when welded pipe line; 2. in case the pipeline of welding occurs wearing and tearing when needing to change, must carry out perforate in original welding position, so not only increase the difficulty of maintenance, and the area of welding is further enlarged, the probability that leakage point occurs can increase.

The utility model content:

The utility model purpose is to provide a kind of hydrogenation reaction kettle novel pipeline connection technique, needs the position elder generation weld reinforcement pipe of welded pipe line at reactor, then with pipeline welding on the reinforcement pipe, reduce the welding difficulty of pipeline.

The utility model is achieved in that a kind of hydrogenation reaction kettle, comprises cylindrical shell and pipeline, it is characterized in that: be welded with the reinforcement pipe on described cylindrical shell, described pipeline is fixed on the described reinforcement pipe.

The utility model compared with prior art has following advantage:

1. because various pipelines are welded on the cylindrical shell by 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 reactor, in case pipeline occurs wearing and tearing when needing to change, need not perforate once more on reactor, as long as polished in the welding position in reinforcement tube and tube road, so just can not increase the bonding area of reactor, can not increase new leakage point yet.

Description of drawings:

Fig. 1 is the structural representation of hydrogenation reaction kettle described in the utility model

1. cylindrical shell 2. pipelines 3. reinforcement pipes

The specific embodiment:

As can be seen from Figure 1, a kind of hydrogenation reaction kettle comprises cylindrical shell 1 and pipeline 2, is welded with reinforcement pipe 3 on cylindrical shell 1, 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 reduce the weld strength of pipeline like this; 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 reactors on this reactor.

Claims

1. a hydrogenation reaction kettle comprises cylindrical shell (1) and pipeline (2), it is characterized in that: be welded with reinforcement pipe (3) on described cylindrical shell (1), described pipeline (2) is fixed on the described reinforcement pipe (3).