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Supercritical carbon dioxide cylinder cooling structure and supercritical carbon dioxide cylinder

A carbon dioxide and cylinder cooling technology, which is applied in the direction of leakage prevention, steam engine devices, engine components, etc., can solve the problems of high temperature of the sealing ring and damage of the dry gas seal, so as to ensure normal operation and avoid damage and failure of the dry gas seal.

Active Publication Date: 2021-07-09
SHANGHAI POWER EQUIP RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a supercritical carbon dioxide cylinder cooling structure and a supercritical carbon dioxide cylinder, to solve the problem in the prior art that the sealing ring of the dry gas seal in the supercritical carbon dioxide cylinder has a high temperature, resulting in damage to the dry gas seal

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  • Supercritical carbon dioxide cylinder cooling structure and supercritical carbon dioxide cylinder
  • Supercritical carbon dioxide cylinder cooling structure and supercritical carbon dioxide cylinder
  • Supercritical carbon dioxide cylinder cooling structure and supercritical carbon dioxide cylinder

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Embodiment Construction

[0035] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.

[0036] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components or the interaction relationship between two ...

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Abstract

The invention discloses a supercritical carbon dioxide cylinder cooling structure and a supercritical carbon dioxide cylinder. The supercritical carbon dioxide cylinder cooling structure comprises an outer cylinder body, a rotor, dry gas sealing pieces and end gas sealing pieces; the rotor is rotationally arranged on the outer cylinder body; the dry gas sealing pieces are arranged at the two ends of the outer cylinder body and used for forming dry gas sealing at the two ends of the outer cylinder body, and first gas inlet structures are arranged on the dry gas sealing pieces so that cooling gas can flow from the exterior of the outer cylinder body to the interior of the outer cylinder body through the first gas inlet structures; and the end gas sealing pieces are arranged between the outer cylinder body and the rotor, are arranged at the two ends of the outer cylinder body and are located inside the dry gas sealing pieces, and second gas inlet structures are arranged on the end gas sealing pieces, so that the cooling gas flowing in from the first gas inlet structures flows into the outer cylinder body through the second gas inlet structures. According to the supercritical carbon dioxide cylinder cooling structure, the operating temperature of the cylinder can be reduced, and protection is provided for dry gas sealing operation of a supercritical carbon dioxide turbine.

Description

technical field [0001] The invention relates to the technical field of turbine cylinders, in particular to a supercritical carbon dioxide cylinder cooling structure and a supercritical carbon dioxide cylinder. Background technique [0002] The supercritical carbon dioxide power conversion technology has technical advantages such as system simplification, high efficiency, small size, and easy realization of module construction. The supercritical carbon dioxide turbine cylinder is one of the core equipment of the system. The obvious difference between the turbine and the conventional steam turbine is that The working fluid of the turbine is high temperature and high pressure carbon dioxide, and the outlet pressure is high. [0003] The shaft end seal of the supercritical carbon dioxide turbine cylinder adopts a dry gas seal. Since the existing dry gas seals at this stage are mainly for medium and low temperature application scenarios, the sealing ring of the dry gas seal is us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01D25/12F01D25/14F01D11/04F01D25/00F01K25/10F01K7/32
CPCF01D25/12F01D25/14F01D11/04F01D25/005F01K25/103F01K7/32
Inventor 赵峰李振亚张天博
Owner SHANGHAI POWER EQUIP RES INST
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