CN102441342A - Reaction vessel treatment - Google Patents

Abstract

The invention discloses a reaction vessel treatment used for producing various chemical raw materials by using a continuous hydrogenation method, which comprises a cylindrical body, material outlet pipelines, a safety valve pipeline and an inlet pipeline, wherein the material outlet pipelines, the safety valve pipeline and the inlet pipeline are welded on the cylindrical body, a hydrogen pipeline and a catalyst pipeline are welded on the material outlet pipeline; a vent pipeline and another hydrogen pipeline are welded on the safety valve pipeline, a nitrogen pipeline is welded on the vent pipeline; wherein two material outlet pipelines are welded on the inlet pipeline. Because a plurality of pipelines are merged and welded on the reaction vessel cylindrical body, aperture opening and welding frequency on the cylindrical body can be substantially reduced, treatment difficulty of the reaction vessel is reduced, and the processing time is shorted, after merging the pipelines, a leakage position is reduced by reducing an aperture opening on the cylindrical body, so that frequency of maintenance can be reduced, and the service life of the reaction vessel can be prolonged.

Description

A kind of agitated reactor processing

Technical field

The present invention relates to a kind of pressure vessel, relate in particular to the agitated reactor processing 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 agitated reactor processing the most in the equipment of producing this series products, on agitated reactor, is welded with various pipelines; Like pipelines such as charging, discharging, catalyst, nitrogen and hydrogen; 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.Difficulty is bigger in the manufacturing process of the agitated reactor of therefore producing at present; Especially weld difficulty, simultaneously owing on agitated reactor, will weld tens kinds of pipelines, pipeline of every welding; Leakage point of just many increases on agitated reactor; The pipeline of welding is many more, and the number of times of its maintenance is just many more, and will shorten the service life of agitated reactor.

Summary of the invention

The object of the invention is to provide a kind of agitated reactor processing novel pipeline connection technique; With being welded on again on the cylindrical shell of agitated reactor after several kinds of pipelines merging; Greatly reduce perforate and welding times on cylindrical shell like this, reduced the difficulty of processing of agitated reactor, shorten process time.

The technical scheme that realizes the object of the invention is:

A kind of agitated reactor processing comprises cylindrical shell, material outlet pipeline, Hydrogen Line and duct, and said material outlet pipeline welding is characterized in that on said cylindrical shell: said Hydrogen Line and duct are welded on the said material outlet pipeline.

A kind of agitated reactor processing; Comprise cylindrical shell, safety valve pipeline, exhausting pipeline, Hydrogen Line and nitrogen pipeline; Said safety valve pipeline welding is on said cylindrical shell; It is characterized in that: said exhausting pipeline and Hydrogen Line are welded on the said safety valve pipeline, and said nitrogen pipeline is welded on the said exhausting pipeline.

The present invention compared with prior art has following advantage:

Because material outlet pipeline, Hydrogen Line and duct etc. are merged on the back welding agitated reactor cylindrical shell; Greatly reduce perforate and welding times on cylindrical shell like this, reduced the difficulty of processing of agitated reactor, shorten process time; After pipeline merges simultaneously; Perforate of every minimizing just reduces by a leakage point on cylindrical shell, and the number of times of maintenance is just few more like this, and the service life of agitated reactor will be long more.

Description of drawings

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

1. cylindrical shell 2. material outlet pipelines 3. Hydrogen Line A 4. duct 5. safety valve pipelines

6. exhausting pipeline 7. Hydrogen Line B 8. nitrogen pipelines 9. feed pipes 10. discharge pipes

The specific embodiment

As can be seen from Figure 1; A kind of agitated reactor processing; Comprise cylindrical shell 1, material outlet pipeline 2, Hydrogen Line A3 and B7, duct 4, safety valve pipeline 5, exhausting pipeline 6, nitrogen pipeline 8, feed pipe 9 and two discharge pipes 10; Said material outlet pipeline 2, safety valve pipeline 5 and feed pipe 9 are welded on the said cylindrical shell 1, and said Hydrogen Line A3 and duct 4 are welded on the said material outlet pipeline 2; Said exhausting pipeline 6 is welded on the said safety valve pipeline 5 with Hydrogen Line B7, and said nitrogen pipeline 8 is welded on the said exhausting pipeline 6; Said two discharge pipes 10 are welded on the said feed pipe 9.The Welding Structure of pipeline is adapted on other various types of agitated reactors on this agitated reactor.

Claims (2)

1. agitated reactor processing; Comprise cylindrical shell (1), material outlet pipeline (2), Hydrogen Line A (3) and duct (4); Said material outlet pipeline (2) is welded on the said cylindrical shell (1), it is characterized in that: said Hydrogen Line A (3) and duct (4) are welded on the said material outlet pipeline (2).

2. agitated reactor processing; Comprise cylindrical shell (1), Hydrogen Line B (7), safety valve pipeline (5), exhausting pipeline (6) and nitrogen pipeline (8); Said safety valve pipeline (5) is welded on the said cylindrical shell (1); It is characterized in that: said exhausting pipeline (6) and Hydrogen Line B (7) are welded on the said safety valve pipeline (5), and said nitrogen pipeline (8) is welded on the said exhausting pipeline (6)

Images