Flat cover of glass lining open type stirring container

Abstract

The invention provides a flat cover of a glass lining open type stirring container. The flat cover comprises a flat cover body, wherein the flat cover body is in a flat plate shape and is provided with a plurality of open holes, the periphery of the upper end opening of each open hole is provided with an annular sealing groove, in addition, a first arc-shaped transition section is arranged between the annular sealing groove and the upper end of the side wall of each open hole, an expansion section with the inner diameter gradually enlarged in a direction from the upper part to the lower part is arranged on the side wall of each open hole, and a second arc-shaped transition section is arranged between the lower end of the expansion section and the bottom surface of the flat cover. Compared with the prior art, the flat cover of the glass lining open type stirring container provided by the invention has the advantages that the structure is simple, the integral equipment height of the glass lining open type stirring container is reduced, in addition, the cleanness and sanitation requirements of the pharmacy GMP (good manufacturing practice) are met, and the glass lining open type stirring container adopting the flat cover is particularly suitable for industries of medicine, food and the like with higher equipment sanitation and safety requirements.

Description

technical field [0001] The invention relates to glass-lined equipment, in particular to a flat cover for a glass-lined open stirring vessel meeting the clean requirements of pharmaceutical GMP. Background technique [0002] Glass-lined equipment is made by compounding a layer of smooth and dense glass material with special properties on the inner surface of the metal container base through high-temperature enamel technology. It has the dual advantages of glass stability and metal strength. It is a kind of Excellent corrosion resistance equipment. Glass-lined equipment is widely used in chemical, petroleum, pharmaceutical, pesticide, food and other industries. According to the conditions of use, glass-lined equipment can be divided into equipment for strong corrosive media and equipment for weak corrosive media. According to the operating pressure, it can be divided into normal pressure and pressure-bearing equipment. [0003] The design and manufacture of glass-lined equip...

AI Technical Summary

Problems solved by technology

The gap 60 formed between the arc-shaped transition surface of the lower opening edge of the high-neck flange 11 and the upper surface of the gasket is easy to accumulate material, and it is also easy to contaminate bacteria here

[0007] It can be seen from this that the elliptical head cover of the glass-lined container in the prior art has the following main disadvantages: 1) Due to the special requirements of enamelling, the weld should not be designed at the transition arc of the opening, so the tube The nozzle height of the flange is relatively high, resulting in a large cleaning dead zone area, which is not easy to clean; 2) There are welds connecting the high neck flange and the welds connecting the pipe flange, and the working surface is poor in smoothness, resulting in easy staining; 3) The radius of the arc-shaped transition surface of the upper opening of the pipe flange is relatively large, and it is easier to contaminate bacteria here

4) There is also a loose flange on the pipe flange for connecting external equipment, which brings difficulties to the external sanitary cleaning of glass-lined containers

[0008] Due to the above-mentioned shortcomings in the structure of the cover, the cover of the glass-lined container in the prior art cannot meet the hygienic requirements of the equipment used in the clean room, especially the implementation of the Good Manufacturing Practice (GMP) by pharmaceutical companies. cleanliness requirements

Images