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A method for manufacturing a tank body insulation layer

A production method and insulation layer technology, applied to fixed-capacity gas storage tanks, gas/liquid distribution and storage, pressure vessels, etc., can solve the problems of unsightly appearance and uneven surface, and achieve the effect of smooth insulation layer surface

Active Publication Date: 2017-08-11
JIANGSU LANYU INSULATION TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after the injected foam is foamed, the top center of the polyurea coat will bulge upwards, resulting in uneven and unsightly surfaces

Method used

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  • A method for manufacturing a tank body insulation layer

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Effect test

Embodiment Construction

[0024] see figure 1 , the present invention relates to a kind of manufacturing method of tank body insulation layer, the steps of this method are:

[0025] 1. The polyurea board 3 and the polyurea coat 5 are prefabricated. The polyurea board 3 is strip-shaped, the bottom of the polyurea board 3 is sprayed with foam, and the polyurea board 3 can be bent end to end and coated on the outer surface of the tank body 1. The polyurea coat 5 is formed by spraying a polyurea layer on the stainless steel wire mesh so that the stainless steel wire mesh is completely covered in the polyurea layer.

[0026] 2. Spray foam 2 on the surface of tank 1, and cover the foam 2 with glass mesh, then spray foam 2 on the top, and then cover the glass mesh. After multiple sprays, the overall thickness of foam 2 is 30 meters away from the target thickness to be sprayed. -50mm.

[0027] 3. Lay prefabricated polyurea boards 3 at intervals on the surface of the foam 2. There is a gap between the bottom ...

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Abstract

The invention relates to a method for manufacturing a tank body insulation layer. The method for manufacturing the tank body insulation layer avoids that the top center of the polyurea coat will bulge upward after foam injection and foaming in the past, resulting in uneven surface and unattractive appearance. At the same time, by prefabricating the polyurea board and the polyurea coat, spray a certain thickness of foam on the surface of the tank before proceeding with the operation, so that the previously sprayed foam can be foamed, and finally the PU injected inward from the polyurea coat The amount of foam is small, and the surface of the insulation layer will not bulge after foaming, making the surface of the insulation layer smooth and beautiful.

Description

technical field [0001] The invention relates to a manufacturing method of a liquefied gas heat preservation tank. The heat preservation tank has the functions of better sealing, heat preservation and aesthetic appearance. Background technique [0002] LNG / LPG / LEG ships are special ships for transporting liquefied gas at low temperatures. In this new generation of natural gas carriers, storage tanks for insulated liquefied natural gas are stored, and thermal insulation structures are sprayed on the surface of the tanks to achieve storage sealing. And insulation effect, can prevent liquid leakage. [0003] However, in the past, when the insulation layer was made on the surface of the liquefied gas insulation tank on board, a support plate was installed on the surface of the tank body on site, a polyurea coat was laid on the top of the support plate, and PU foam was injected into the interior after the polyurea coat was drilled. However, after the foam injected in this way is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F17C1/12
Inventor 彭依文
Owner JIANGSU LANYU INSULATION TECH
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