Spherical storage tank heat preservation structure and installation method thereof

Abstract

The invention discloses a spherical storage tank heat preservation structure and an installation method thereof, and relates to the spherical storage tank heat preservation structure, wherein the spherical storage tank heat preservation structure comprises a frame structure used for wrapping a spherical storage tank, a plurality of supporting pieces, a heat preservation layer and an outer protection layer; the frame structure comprises a plurality of longitude fixing belts and a plurality of latitude fixing belts; the supporting pieces are arranged between the frame structure and the spherical storage tank, and the two ends of each supporting piece abut against the frame structure and the spherical storage tank respectively so that a gap can be formed between the frame structure and the spherical storage tank; the heat preservation layer comprises a plurality of heat preservation blocks arranged in the gap; and the outer protection layer is connected to the frame structure, and the outer protection layer wraps the outer side of the frame structure and wraps the heat preservation layer. The heat preservation effect of the spherical storage tank can be guaranteed, meanwhile, it is guaranteed that the heat preservation layer and the outer protection layer do not deform, detachability and reusability are achieved, and the influence on the spherical shell welding seam reinspection operation is reduced.

Description

technical field [0001] The invention relates to the field of storage tanks, in particular to a spherical storage tank insulation structure and an installation method thereof. Background technique [0002] With the rapid development of my country's iron and steel industry and the replacement of production capacity, the steelmaking converter has gradually become larger, and the large-scale spherical heat accumulator in the matching vaporization cooling system has been widely used. Compared with other storage tanks of the same volume, the spherical heat accumulator of the spherical storage tank type has the advantages of small footprint, less steel consumption, and small surface area. Since the spherical heat accumulator stores saturated water vapor and has a high working temperature, the outside of the tank needs insulation to reduce heat loss. Spherical heat preservation is more difficult than conventional cylindrical containers. Therefore, the quality of the heat preservati...

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Problems solved by technology

The above method has many disadvantages. For example, the spherical frame layer structure formed by welding the warp and weft strips is covered on the outer surface of the spherical shell, which is very inconvenient for the subsequent weld quality inspection and disassembly of the insulation structure of the spherical storage tank. Only destructive methods can be used. Disassembly, the availability of the insulation structure is not strong; the warp lines are welded to the weft lines in a segmented structure, which is unfavorable for the insulation and load-bearing of the lower half of the spherical storage tank; the spherical protective layer is directly covered on the insulation layer, without internal structural support It should become an ellipsoid after the action of gravity; the outer surface of the warp and weft strips is densely packed with insulation nails, which is not conducive to wrapping the heavy insulation layer

[0004] Whether it is the insulation nail directly welded on the spherical tank, or the method of welding the insulation nail on the surface frame layer of the spherical tank, it not only increases the inspection workload of the spherical tank, but also increases the removal of the insulation structure when re-inspecting the weld seam of the spherical shell. workload, and the insulation structure cannot be reused

The outer protective layer is directly attached to the insulation layer. After long-term operation, the upper hemisphere of the spherical tank insulation will collapse and the lower hemisphere will be dragged, and the overall deformation of the outer insulation structure will affect both the insulation effect and the appearance.

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