Insulation Method for Insulation Shed Used for UHV Transformer Installation
A heat preservation shed and ultra-high voltage technology, applied in the field of heat preservation of the heat preservation shed, can solve the problems of short heat preservation time of the heat preservation shed, affecting the smooth operation of UHV transformers, lack of heat preservation schemes, etc., to achieve long-lasting heat preservation effect and maintain The effect of keeping the temperature constant and meeting the insulation requirements
Active Publication Date: 2018-12-28
STATE GRID CORP OF CHINA +4
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Problems solved by technology
[0004] In the prior art, heat preservation sheds are often used to insulate the installation of UHV transformers. However, the inventors of the present application have found that although the existing heat preservation sheds can achieve a certain heat preservation effect, due to the lack of perfect Therefore, the heat preservation time of the existing heat preservation shed is relatively short, which cannot meet the long-term heat preservation requirements during the installation of UHV transformers, which affects the smooth installation of UHV transformers
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[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0034] Embodiments of the present invention provide a method for heat preservation of a heat preservation shed used for installation of UHV transformers, such as figure 1 The insulation method shown includes:
[0035] Step S1. Obtain the heat dissipation q per unit time of the insulation shed 1 , where the heat dissipation per unit time q of the insulation shed 1 The heat dissipation per unit time q of the roof bracket including the insulation s...
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The invention discloses a thermal insulation method of thermal insulation shelf used for special (ultra) high voltage electric reactor mounting, relates to the technical field of special (ultra) high voltage electric reactor mounting, and solves a technical problem that a prior thermal insulation shelf is short in thermal insulation duration. An electric heater is mounted in the thermal insulation shelf. The method includes obtaining a unit time heat dissipation volume q1 of the thermal insulation shelf, wherein the unit time heat dissipation volume q1 of the thermal insulation shelf includes a unit time heat dissipation volume qd of the ceiling support of the thermal insulation shelf and a unit time heat dissipation volume qt of a shelf support of the thermal insulation shelf; obtaining a unit time heat dissipation volume q2 of the ground in the thermal insulation shelf; determining the unit time total heat dissipation volume qs of the thermal insulation shelf according to the unit time heat dissipation volume q1 of the thermal insulation shelf and the unit time heat dissipation volume q2 of the ground in the thermal insulation shelf, wherein qs=q1+q2; adjusting the power P of the electric heater to be equal to qs according to the unit time total heat dissipation volume qs of the thermal insulation shelf. The invention is applied to special (ultra) high voltage electric reactor mounting.
Description
technical field [0001] The invention relates to the technical field of extra (ultra) high voltage transformer installation, in particular to a heat preservation method for a heat preservation shed used for extra (ultra) high voltage transformer installation. Background technique [0002] At present, the construction of ultra (ultra) high voltage power grid has become a key construction project, among which, the construction of ultra (ultra) high voltage power grid in alpine regions is an important part of the project. [0003] For UHV power grid construction projects in alpine regions, the main problem in construction is that during the installation process of UHV transformers, the circulating temperature of insulating oil in UHV transformers is at 65 ℃, and the external ambient temperature in the Northwest and other alpine regions usually reaches -20 ℃, which will make the temperature difference between the inside and outside of the UHV transformer too large, resulting in t...
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IPC IPC(8): F24D19/10E04H5/04
CPCE04H5/04F24D19/1096
Inventor 侯纪勇阎国增刘博赵海森陈凯卞秀杰王天宇王猛李玉民邓德良林晓春贺虎聂琼葛江北
Owner STATE GRID CORP OF CHINA