Insulation layer structure for disposable anti-demolition chemical equipment

Abstract

The invention discloses a heat preservation layer structure for disposable anti-dismantling chemical equipment, and belongs to the field of chemical equipment. The heat preservation layer structure for the disposable anti-dismantling chemical equipment comprises a chemical transmission pipe, wherein an inner limiting thermal insulation layer is arranged on the outer side of the chemical transmission pipe, the inner side of the inner limiting thermal insulation layer is attached to the outer end of the chemical transmission pipe, an outer limiting thermal insulation layer is arranged on the outer side of the inner limiting thermal insulation layer, a heat preservation center core layer is arranged between the inner limiting thermal insulation layer and the outer limiting thermal insulationlayer, and the right end of the outer limiting thermal insulation layer is fixedly connected with a photothermal fastener. Compared with common chemical equipment heat preservation layers, deformationcan be generated according to difference changes between internal and external temperatures of the chemical equipment, the internal stress of the heat preservation layer structure can be balanced, internal stress deformation caused by temperature changes of the heat preservation layer structure is reduced, the situation that a heat preservation layer cannot be attached to a surface layer of the chemical equipment in the case of large internal and external temperature differences is reduced, the thermal insulation effect of the heat preservation layer structure on the chemical equipment is enhanced, and meanwhile internal cracks caused by stress are reduced.

Description

technical field [0001] The invention relates to the field of chemical equipment, and more specifically relates to a thermal insulation layer structure for disposable anti-demolition chemical equipment. Background technique [0002] Chemical equipment is a part of chemical machinery. Chemical machinery consists of two parts. One is chemical machinery, which mainly refers to equipment such as fans, compressors, and various pumps for fluid transportation. The main components are moving machinery, generally called chemical engineering. machine. The second is that chemical equipment mainly refers to machinery whose components are static, such as separation equipment such as towers, containers, reactor equipment, etc., sometimes also called non-standard equipment. The division between chemical machinery and other machinery is not very strict. For example, some pumps used in chemical processes are also general equipment used in other industrial sectors. Also in the chemical proce...

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Problems solved by technology

[0004] The existing thermal insulation layer structure for chemical equipment is composed of a variety of composite materials, which can have a good thermal insulation effect on the chemical equipment body and well block the inside of the chemical equipment inside the thermal insulation layer, but it is partially used in low temperature environments. In the working state of chemical equipment, the external temperature is low, while the temperature of the chemical reagents flowing inside is high, resulting in a large temperature difference between the inside and outside of the chemical equipment, and the structure of the insulation layer has different expansion coefficients, resulting in the structure of the insulation layer in the chemical equipment. Under the action of internal and external temperature difference, stress deformation occurs, so that the structure of the insulation layer cannot be closely attached to the surface of the chemical equipment, thereby forming a gap between the structure of the insulation layer and the chemical equipment, reducing the insulation effect of the insulation layer, and further affecting the chemical inside the chemical equipment. The reaction caused the influence on the temperature. At the same time, because the surrounding tangential stress is in a state of tension, cracks easily appear along with the deformation inside the insulation layer. When the structure of the insulation layer is in this state for a long time, the cracks inside the insulation layer will expand. Cause damage and failure of the insulation layer structure

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