High-performance metal reflecting type heat preservation layer

Abstract

The invention discloses a high-performance metal reflecting type heat preservation layer, and belongs to high-performance heat preservation equipment. The problems that for a non-metal heat preservation material, the degradation phenomenon exists, the pit filter screen blocking risk is prone to occurring, and dust can be generated to harm health of construction personnel are solved. The high-performance metal reflecting type heat preservation layer is formed by assembling and connecting high-performance metal reflecting type heat preservation blocks, and connectors have two modes of detachableconnection and non-detachable connection and have the better high temperature resistance, corrosion resistance and thermal insulation resistance; the containment circulation pit filter screen blocking risk is effectively reduced; the nuclear power plant maintenance and replacement time is shortened; the mechanical strength is high, and the anti-seismic property and the shock resistance are good;the service life is long, and the heat preservation performance is stable in the service life; no dust is generated, no pollutant diffusion occurs, and harm of radioactive substances to operation andmaintenance personnel can be avoided or reduced; and no corrosivity is generated to the equipment or pipelines.

Description

technical field [0001] The invention relates to a high-performance heat preservation equipment, which can be used for various main equipments (such as: reactor pressure vessels, steam generators, voltage stabilizers, main pumps, etc.), pipelines (main pipelines, fluctuating pipes, etc.), valves and ordinary pipelines and other equipment, and can also be used for the insulation of other non-nuclear equipment such as chemical equipment. Specifically, it relates to a high-performance metal reflective insulation layer. Background technique [0002] Nuclear power plants and other nuclear power installations (such as reactor pressure vessels, steam generators, pressurizers, main pumps, etc.), pipelines (main pipelines, wave tubes, etc.), valves and ordinary pipelines, as well as non-nuclear Chemical equipment, etc., are in a high temperature state during operation. In order to reduce heat dissipation to the surrounding environment, reduce the temperature of the surrounding envir...

AI Technical Summary

Problems solved by technology

[0003] The use of non-metallic thermal insulation materials as thermal insulation equipment mainly has the following disadvantages: long-term use in humid, salt spray, high temperature, and irradiation environments will cause degradation phenomena such as embrittlement, pulverization, and thermal insulation performance degradation; Debris and debris blown down by the jet stream under accident conditions are the main sources of debris in the containment, which may cause the blockage of the pit filter, which will affect the reliable operation of related safety systems; insulation cotton felt and cotton wool Materials will generate dust during construction, which will endanger the health of construction personnel and have adverse effects on the surrounding environment (or equipment)

[0004] The general service life of non-metallic insulation materials is only 20 to 30 years, and it is easy to produce dust, radiation and other pollution when replacing, the replacement process is difficult to operate and the replacement time is long

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