CN205204819U - Carbon fiber winding graphite synthetic furnace - Google Patents

Abstract

The utility model provides a carbon fiber winding graphite synthesis furnace, which has an air intake section, a synthesis section, a cooling evaporation section, and an absorption section. The main material of the furnace wall of the synthesis furnace is a graphite ring. There is a composite material layer of carbon fiber reinforced phenolic resin on the periphery of the furnace wall of the synthesis section. The thickness of the composite material layer is 1/3-1/6 of the thickness of the graphite ring in this section. The composite material layer is preferably 15%-30%. Wound structural composite layers formed after curing of phenolic resin impregnated carbon fiber filaments. The synthesis furnace of the utility model has strong high temperature and high pressure resistance, strong corrosion resistance and long service life.

Description

Carbon fiber winding graphite synthesis furnace

technical field

The utility model relates to the structure and material of a hydrogen chloride synthesis furnace.

Background technique

Usually hydrochloric acid is produced by first using chlorine and hydrogen as raw materials to react in a synthesis furnace to generate hydrogen chloride, and then absorbed by water in the upper part of the synthesis furnace. Synthetic furnaces have all-graphite structures, and also have graphite-steel composite structures.

The graphite synthesis furnace provided by the utility model with the patent application number of 2015200425872, the furnace shell is made of double graphite layer material, which is divided into interconnected sequentially from bottom to top: synthesis section, cooling section, absorption section and upper head. The cooling section is a jacket structure, the lower end of the jacket is connected to the cold water inlet, and the upper end is connected to the steam outlet. The casing of the synthesis section and the cooling section may also have a steel outer cylinder or a steel hoop to enhance the strength of the casing. The steel outer cylinder or steel hoop of the utility model is easily corroded by the pickling environment, and the heat insulation effect is not good.

Utility model content

Purpose of the utility model: to provide a carbon fiber-wound graphite synthesis furnace with pressure resistance, temperature resistance and corrosion resistance.

Technical solutions:

The carbon fiber winding graphite synthesis furnace provided by the utility model has a segmented assembly structure of an air intake section, a synthesis section, a cooling evaporation section, and an absorption section arranged from bottom to top, or there is an exhaust gas purification section above the absorption section.

The main material of the synthesis furnace wall is graphite circle.

There is a composite material layer of carbon fiber reinforced phenolic resin on the periphery of the furnace wall of the synthesis section. The thickness of the composite material layer is 1/3-1/6 of the thickness of the graphite ring in this section, and the preferred weight ratio of the composite material layer is 15%-30%. The phenolic resin impregnated with a weight ratio of 70%-85% of carbon fiber filaments is wound and cured to form a winding structure to resist the large gas pressure in the synthesis section and the temperature change stress caused by high temperature on the furnace wall growth.

The cooling and evaporating section is made of a graphite ring with a cavity in the furnace wall, which facilitates the flow of cooling water in it. The cooling and evaporating section is connected to the steam outlet pipeline with steam, and the steam outlet pipeline can also be partially wound with thinner composite materials. layer to prevent the outlet pipeline from cracking due to excessive water vapor pressure.

Beneficial effect:

The graphite synthesis furnace of the utility model has the characteristics of high mechanical strength of local parts, high temperature resistance, pressure resistance and temperature resistance, the whole furnace body is not easy to be corroded, and has a long service life. Moreover, because it is only a partial reinforcement treatment of key parts, the manufacturing cost is relatively low, and it does not affect the segmental manufacturing, assembly and disassembly of equipment, and is easy to manufacture, use and maintain.

Description of drawings:

Fig. 1 is a kind of sectional structure schematic diagram of the present invention;

In the figure, 1-intake section; 2-synthesis section; 3-cooling evaporation section; 4-cavity; 5-absorption section; 6-outlet steam pipeline; 7-composite material layer;

detailed description:

The carbon fiber winding graphite synthesis furnace shown in Figure 1 has an inlet section 1, a synthesis section 2, a cooling evaporation section 3, and an absorption section 4 arranged from bottom to top, and the main material of the synthesis furnace wall is a graphite ring 8, wherein There is a composite material layer of carbon fiber reinforced phenolic resin on the periphery of the furnace wall of the synthesis section 2, and the thickness of the composite material layer is 1/4-1/6 of the thickness of the graphite ring 8 in this section. The cooling and evaporating section 3 is made of a graphite ring 8 with a cavity in the furnace wall, and the steam outlet pipeline 6 connected to the cooling and evaporating section 3 is wound with a thinner composite material reinforcing layer. The composite material layer is a winding structure formed by impregnating 80% carbon fiber filaments with 20% phenolic resin and winding them.

Claims (3)

1. A carbon fiber wound graphite synthesis furnace has a bottom-up intake section, a synthesis section, a cooling evaporation section, an absorption section, or an exhaust gas purification section above the absorption section, and the main material of the synthesis furnace wall is a graphite ring , It is characterized in that: there is a layer of carbon fiber reinforced phenolic resin composite material layer on the periphery of the furnace wall of the synthesis section, and the thickness of the composite material layer is 1/3-1/6 of the thickness of the graphite ring in this section. 2 . The carbon fiber wound graphite synthesis furnace according to claim 1 , wherein the composite material layer is a winding structure formed by winding and solidifying carbon fiber filaments impregnated with phenolic resin. 3 . 3. The carbon fiber winding graphite synthesis furnace according to claim 1 or 2, characterized in that: the cooling and evaporating section is made of a graphite ring with a cavity in the furnace wall, and the steam outlet connected to the cooling and evaporating section is Thinner composite reinforcements are wound around the pipes.