Sealing plate for low temperature dry space and installation method thereof

Abstract

The sealing board for low-temperature dry space, including the main wall panel, is characterized in that: the main wall panel is detachably installed on the wall keel of the wall frame, and the adjacent main wall panels are sealed with a multi-turn sealing structure Connection, the multi-turn sealing structure is filled with wall panels and rubber pads for secondary sealing of the joints between adjacent main wall panels, and the sealant channel in the multi-turn sealing structure passes through the inner surface of the main wall panel Multiple turns extend to the outer surface. The invention effectively improves the sealing performance between adjacent main wall panels, reduces the probability of cold medium leakage, improves sealing reliability and effectiveness, meets the sealing requirements of low-temperature dry spaces, and can meet the wall construction requirements of large-scale sealed space projects. The maintenance of the sealed wall is more convenient and feasible. The invention also provides a method for installing the sealing plate used in the low-temperature dry space.

Description

technical field [0001] The invention relates to a sealing plate for a low-temperature dry space and an installation method thereof, and belongs to the technical field of low-temperature dry space sealing. Background technique [0002] Dry space sealing technology is an important branch in the field of sealing technology, which is directly related to the safe operation of drying equipment. In dry spaces, dehumidifiers are often used to reduce the air humidity in the room to a certain required range. The walls and floors of the entire room must be sealed and moisture-proof, so as to prevent the entry of external moisture and make the interior meet the low dew point design requirements; but currently in In some low-temperature fields, it is difficult to meet the low-temperature resistance requirements for ordinary dry spaces in accordance with the design ideas of general clean workshops at -40°C temperature beyond the general cold storage. It is difficult to clean the wall pane...

AI Technical Summary

Problems solved by technology

[0004] 1) Most of the sealing plates described in the prior art are improved on the basis of the original stainless steel panels, such as "CN203641377U low dew point drying room" and "CN209054834U a cold storage board airbag sealing belt", the former uses color steel The sandwich panel is filled with rock wool. The latter is made of stainless steel panels, which are filled with polyurethane insulation materials. In practical applications, ordinary silica gel and glass glue are used to seal the gap between the panels, which are easy to crack at low temperatures. The former is medium Aluminum sealing structure with three sealed moisture-proof points is prone to thermal bridge effect; the latter adopts airbag seal, and the rubber ball airbag is inflated and locked through a one-way valve. The airbag material itself is prone to chapping, failure, and cold shrinkage at low temperatures below -40° Deformation is easy to leak, and the amount of inflation is difficult to grasp the expansion and contraction margin scale. It is difficult to ensure that the quality is not leaked in the later stage, and the maintenance of the airbag is also inconvenient.

[0005] 2) "CN106121296B A Construction Method for Low-Temperature Cold Storage" is aimed at pouring polyurethane on-site after the installation of the outer and inner wall panels of the low-temperature cold storage, which can control the thermal bridge (also known as the cold bridge) of the cold storage to more than 99%. The scheme is not suitable to meet the requirements of low dew point, and it is impossible to avoid water vapor remaining in the material body during the construction process, and there is no modular construction, and the overall molding is reliable, which is not conducive to large-scale standardized construction in high-rise confined spaces over 3 meters

[0006] 3) In the prior art dry space sealing plate structure, the seal between the plates mostly adopts the form of open groove structure, and the surface groove adopts polyurethane sealing plate, such as "CN105604768B A kind of steel-plastic composite polyurethane movable guide vane facade sealing device" , the inner hexagonal bolts fixing the polyurethane sealing plate and the outer edge of the sealing plate and the movable guide vane body are filled with polyurethane composite mortar and smooth transition treatment, and the polyurethane polyurethane sealing plate is embedded with steel mesh 4 to form a steel-plastic composite structure , the production process is: mold leveling and heating → raw material heating → steel plate mesh painting adhesive, placing and leveling → pouring polyurethane elastic material → heat preservation and curing → product, suitable for on-site personalized custom construction, not suitable for standard dry and sealed space construction

[0007] 4) In the dry space sealing plate structure described in the prior art, a large number of stainless steel hexagon socket bolts are used, but there is no clear and implementable technical solution for the design method of the gap sealing and low-temperature expansion reserve margin, and the rigid connection of the bolts does not consider the sealing structure The overall shock resistance and the sealing treatment method between material gaps are not clear enough

Images