Combined sealing device for quick-opening alcohol extraction kettle

Abstract

The invention belongs to the technical field of sealing for alcohol extraction kettles, and particularly relates to a combined sealing device for a quick-open type alcohol extraction kettle. The device comprises a sealing end seat and a cover plate, wherein seat grooves are concavely formed in adjacent surfaces of the cover plate and the sealing end seat respectively; a first heat insulation sealing seat, a sealing ring and a second heat insulation sealing seat are successively arranged on stacking surfaces of the insides of the seat grooves in an adhered manner; and annular grooves are concavely formed in the inner side surface and the outer side surface of the sealing ring respectively, so that a wavy-line-shaped or comb-teeth-shaped structure is formed on the axial cross section of the sealing ring. The device further comprises a hoop, a bayonet is concavely formed in an inner ring surface of the hoop coaxially, sink slots or notches are annularly and concavely formed in the outer walls of the cover plate and the sealing end seat correspondingly, and the hoop applies a force in the axial direction to press the cover plate and the sealing end seat. The device has the advantages of reasonable structure, convenience in mounting and capability of being used repeatedly. Requirements of sealing of equipment under the working conditions of high temperature and high pressure can be met effectively, the working reliability is high, and the service life can be guaranteed effectively.

Description

technical field [0001] The invention belongs to the technical field of sealing for alcohol extraction, in particular to a combined sealing device for a quick-opening alcohol extraction kettle. Background technique [0002] The quick-opening alcohol extraction tank is a reaction vessel for the production of high-temperature-resistant porous insulation materials. The temperature of the alcohol vapor in the kettle is as high as 300°C and the pressure is as high as 16MPa. Therefore, the requirements for the process are extremely high, and the sealing requirements for the feed port are especially high. harsh. In terms of the sealing requirements of the alcohol extraction feed inlet, on the one hand, it is necessary to meet the sealing requirements under a single working state, to ensure that the process parameters such as the pressure and temperature of the equipment are stable, and the medium does not leak or the leakage volume meets the leak detection requirements of the equipm...

AI Technical Summary

Problems solved by technology

As far as the current feed inlet seals for alcohol extraction are concerned, people expect the seals to have performance characteristics such as high temperature resistance, high pressure resistance, and fatigue resistance. However, due to the limitations of existing materials and sealing methods, the actual sealing effect is often unsatisfactory

For example, rubber Y-rings, fluoroplastic O-rings and metal C-rings used in common alcohol extraction and sealing structures, rubber materials are prone to aging and deformation under high temperature conditions, and fluoroplastics have low strength and high creep and other defects, the metal C-shaped ring has a limited number of uses, and obviously cannot meet the requirements of the frequency of use

Images