Method for sealing gas-regulating refrigeration house

Abstract

The invention discloses a method for sealing a gas-regulating refrigeration house. The method includes the steps that first, inlet-outlet pipelines of the refrigeration house are treated, and the problem of local 'cold air releasing' is solved primarily; then, the inner side surface of the refrigeration house is pretreated, the local defects and cracking problems of a wall are solved, and flatness and smoothness are realized; and at last, after pretreatment by a space enclosing structure (1), a polyurethane waterproof coating film (2) is subjected to integral one-time pasting, polyurethane foaming plastic (3) is adopted on the basis for performing field totally-enclosed type integration spraying, sealant (4) is sprayed onto local cracking defect positions so that airtightness of the refrigeration house can be reinforced, and after the spraying thickness meets design requirements, the totally-enclosed type integration spraying method is used for one-time spraying of high-performance sealant (4). According to the method, the technical measures of local reinforcement and overall optimization are taken, local reinforcement is conducted on the wall problems existing in civil engineering particularly, and thus good airtightness of the refrigeration house can be guaranteed; and meanwhile, the high airtightness requirement of the gas-regulating refrigeration house is met by the adoption of the totally-enclosed type integration spraying technique.

Description

[0001] The invention relates to the field of controlled-atmosphere cold storage, and is especially suitable for the sealing field of civil-type controlled-atmosphere storage, which is mainly used for storing items with higher requirements on changes in temperature, humidity, oxygen and carbon dioxide content. Background technique [0002] With the rapid development of the national economy, people are increasingly aware of the importance of food safety, thus putting forward higher requirements for cold chain equipment and cold chain logistics. As one of the key cold chain equipment, cold storage is generally divided into cooling storage, freezing storage, cold storage and air-conditioning storage according to the different storage items. Compared with other cold storage, air-conditioning storage needs to control the temperature and humidity in the storage, and needs Adjust the relative content of oxygen, carbon dioxide and nitrogen in the warehouse to ensure the best effect on s...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a sealing method for a controlled atmosphere cold storage, which adopts a fully enclosed integrated method to set an airtight layer for the enclosure structure of a civil engineering controlled atmosphere storage, so as to solve the "running cold" of the existing civil engineering controlled atmosphere storage question

Images