Water-cooled reactor

Abstract

The invention relates to a water-cooled reactor which comprises an outer cylinder, a radial reaction basket, a water-cooled system, a central pipe, a water chamber, a steam chamber and a loading and unloading structure. The radial reaction basket is located in the outer cylinder. A gap is formed between the radial reaction basket and the outer cylinder. The water-cooled system comprises a water-cooled pipe extending into the radial reaction basket. The water-cooled pipe is communicated with both the water chamber and the steam chamber. The central pipe extends into the radial reaction basket, partly penetrates through the radial reaction basket and extends out of the outer cylinder. The water-cooled reactor further comprises a lower pipe plate and an upper pipe plate which are arranged in the outer cylinder in a spaced mode. The upper pipe plate is a certain distance away from one end of the outer cylinder. One of the water chamber and the steam chamber is formed between one end of the outer cylinder and the upper pipe plate, and the other of the water chamber and the steam chamber is formed between the lower pipe plate and the upper pipe plate. An arc-shaped pipe plate serves as the lower pipe plate. In the water-cooled reactor, the arc-shaped pipe plate serves as the lower pipe plate, and therefore the thickness of the lower pipe plate can be designed to be thin after bearing pressure, the weight of the device can be reduced, and device cost is saved.

Description

technical field [0001] The invention relates to the technical field of chemical industry, in particular to a water-cooled reactor used in ammonia synthesis and methanol synthesis production. Background technique [0002] The methanol synthesis reaction is a strongly exothermic reversible reaction, the main reaction formula [0003] CO+2H 2 =CH 3 OH+ΔH R1 [0004] CO 2 +3H 2 =CH 3 OH+H 2 O+ΔH R2 [0005] ΔH R1 =-76519.5-49.2909T----------P132 [0006] ΔH R2 =-37858.2-22.666T-------P132 [0007] The reaction is carried out in a reactor equipped with a catalyst. The modern methanol catalyst is a low-pressure low-temperature copper-zinc-aluminum system with a pressure of 4.0MPa-8.5MPa and a temperature of 210°C-280°C. It can be seen from the above that the unreacted gas must be preheated to 210°C. During the reaction process, the heat release is large and the temperature rises greatly. For example, the temperature rises by 32°C for every 1% CO reaction. [0008] T...

AI Technical Summary

Problems solved by technology

In the reaction process, in addition to the temperature must meet certain requirements, the pressure inside the reactor must also meet certain requirements, therefore, the pressure capacity of the reactor is very important, at present, in order to increase the pressure capacity of the reactor, generally It is to increase the wall thickness of the reactor as much as possible, but the increase of the wall thickness will increase the weight of the equipment, especially increasing the thickness of the tube sheet, which will greatly increase the cost of the equipment

Images