CN201493108U

CN201493108U - Hydrogenation reactor

Info

Publication number: CN201493108U
Application number: CN2009203057504U
Authority: CN
Inventors: 倪加明
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-07-07
Filing date: 2009-07-07
Publication date: 2010-06-02
Anticipated expiration: 2019-07-07

Abstract

The utility model discloses a hydrogenation reactor for manufacturing all chemical raw materials through a continuous hydrogenation process, which comprises a cylinder and a pipe; the cylinder is welded with a reinforcing tube; and the pipe is fixed on the reinforcing tube. Before being welded, the reinforcing tube can be processed according to the outer diameter of the welded pipe; simultaneously, the welded part can be also machined, thereby the welding strength of the pipe is greatly reduced, the welded part is quite uniform, the pipe is protected, the service life of the pipe is prolonged, and the maintenance difficulty of the reactor is reduced; once the pipe is worn and needs to be replaced, no hole needs to be opened on the reactor, the welding area of the reactor is not increased, and no new leak point is added. The pipe welding structure on the reactor is applicable to other types of reactors.

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).