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Supercritical carbon dioxide turbine heat preservation device capable of being automatically suspended and overlapped and control method

A carbon dioxide and heat preservation device technology, which is applied to safety devices, steam engine devices, engine starting, etc., can solve the problem of inability to take into account the requirements of turbine operation, and achieve the effects of simple structure, simple installation and easy operation.

Pending Publication Date: 2021-12-03
XIAN THERMAL POWER RES INST CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, neither of these two forms can take into account the operation requirements of the turbine under all working conditions.

Method used

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  • Supercritical carbon dioxide turbine heat preservation device capable of being automatically suspended and overlapped and control method
  • Supercritical carbon dioxide turbine heat preservation device capable of being automatically suspended and overlapped and control method
  • Supercritical carbon dioxide turbine heat preservation device capable of being automatically suspended and overlapped and control method

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Experimental program
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Embodiment Construction

[0034] The present invention is described in further detail below in conjunction with embodiment.

[0035] Such as Figure 1-Figure 5 As shown, a supercritical carbon dioxide turbine thermal insulation device and control method that can be automatically suspended and stacked include CO 2 Turbine body 1, CO 2 An insulation layer 2 is attached to the outer wall of the turbine body 1, and the insulation layer 2 adopts a louver-type insulation material 3, and the insulation material 3 is supported by a double-layer bracket of a fixed bracket 4 and a movable bracket 18; Reserved hole 9 for installing CO 2 The signal measuring element of the main body; the heat preservation device also includes an external auxiliary equipment cooling fan 10, and the cooling fan 10 is equipped with an isolation valve 11 and an air intake control valve 5; the isolation valve 11 is a normally open valve, which is only closed during maintenance and long-term shutdown , the intake control valve 5 adop...

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Abstract

The invention discloses a supercritical carbon dioxide turbine heat preservation device capable of being automatically suspended and overlapped and a control method. The supercritical carbon dioxide turbine heat preservation device comprises a CO2 turbine body, wherein a heat preservation layer is attached to the outer wall of the CO2 turbine body, the attached heat preservation layer is made of a louvered heat preservation material, the heat preservation material is supported by a double-layer support of a fixed support and a movable support, reserved holes with different sizes and shapes are distributed in the heat preservation material, and the reserved holes are used for installing a signal measuring element of the CO2 body. According to the heat preservation device, the heat preservation tightness of the carbon dioxide turbine in the starting temperature rise stage can be met, the temperature of the outer cylinder wall can be rapidly cooled after the carbon dioxide turbine jumps under the high parameter, and the problems in the background technology can be effectively solved.

Description

technical field [0001] The invention belongs to the technical field of supercritical carbon dioxide turbine heat preservation, and in particular relates to a supercritical carbon dioxide turbine heat preservation device and control method that can be automatically suspended and stacked. Background technique [0002] Due to the different physical properties of carbon dioxide and water vapor, supercritical carbon dioxide turbines and steam turbines with steam as the working medium show very different characteristics. At present, the MW-level supercritical carbon dioxide turbine has few stages of work, short rotor, and small cylinder volume. When the CO2 turbine is in the start-up phase, the metal temperature of the inner wall of the cylinder varies with the CO 2 The work done by the working fluid rises quickly, while the temperature of the metal on the outer wall of the cylinder heated by heat conduction rises slowly, which leads to a large temperature difference between the ...

Claims

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Application Information

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IPC IPC(8): F01D25/08F01D19/02F01D21/12F01K25/10
CPCF01D25/08F01D19/02F01D21/12F01K25/103
Inventor 宋晓辉张明理伍刚李晓飞刘岗高景辉辛志波王林李昭王阳牛坤孟颖琪
Owner XIAN THERMAL POWER RES INST CO LTD
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