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Staggered steam turbine cylinder vertical connecting assembling surface assembly structure and steam turbine cylinder thereof

An assembly structure and steam turbine technology, which is applied in the field of steam turbine cylinders, can solve the problems of loss of working fluid, large impact, secondary accidents, etc., and achieve the effect of reducing the risk of steam leakage, reducing the risk of steam leakage, and improving sealing performance

Active Publication Date: 2019-11-26
DONGFANG TURBINE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Steam leakage not only affects the economy of the steam turbine and loses working fluid, but also in special environments such as chemical industry, steam leakage is likely to cause secondary accidents, which has a huge impact

Method used

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  • Staggered steam turbine cylinder vertical connecting assembling surface assembly structure and steam turbine cylinder thereof
  • Staggered steam turbine cylinder vertical connecting assembling surface assembly structure and steam turbine cylinder thereof
  • Staggered steam turbine cylinder vertical connecting assembling surface assembly structure and steam turbine cylinder thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Such as Figure 3 to Figure 5As shown, a staggered steam turbine cylinder vertical joint surface assembly structure of Embodiment 1 includes a connected steam turbine front cylinder and a steam turbine rear cylinder; the steam turbine front cylinder is composed of the upper half 1 of the steam turbine front cylinder and the lower half 2 of the steam turbine front cylinder, The steam turbine rear cylinder is composed of the upper half 3 of the steam turbine rear cylinder and the lower half 4 of the steam turbine rear cylinder; Horizontally connected to the mating surface 5; between the upper half 1 of the front cylinder of the steam turbine and the upper half 3 of the rear cylinder of the steam turbine, the upper half of the cylinder cylinder is vertically connected to the mating surface 6; between the lower half 2 of the front cylinder of the steam turbine and the lower half 4 of the rear cylinder of the steam turbine to form a cylinder cylinder The lower half of the ve...

Embodiment 2

[0058] A steam turbine cylinder in Embodiment 2. The steam turbine cylinder includes multi-stage cylinders. A staggered steam turbine cylinder vertical mating surface assembly structure in Embodiment 1 is adopted, so that each stage of cylinder is assembled to form the steam turbine cylinder.

[0059] Further, the steam turbine cylinder includes a 2-stage cylinder, or, the steam turbine cylinder includes a 3-stage cylinder.

[0060] In one embodiment, the cylinder of the steam turbine includes two sections of cylinders. As mentioned in the background art, a certain type of pure condensing steam turbine consists of two sections of cylinders in the axial direction, which are respectively the front cylinder and exhaust cylinder of the steam turbine. The front cylinder of the steam turbine corresponds to the front cylinder of the steam turbine in the first embodiment, and the exhaust cylinder of the steam turbine corresponds to the rear cylinder of the steam turbine in the first em...

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Abstract

The invention discloses a staggered steam turbine cylinder vertical connecting assembling surface assembly structure and a steam turbine cylinder thereof, and belongs to the technical field of steam turbine cylinders. The staggered steam turbine cylinder vertical connecting assembling surface assembling structure comprises a steam turbine front cylinder and a steam turbine rear cylinder; the steamturbine front cylinder is composed of a steam turbine front cylinder upper half and a steam turbine front cylinder lower half, and the steam turbine rear cylinder is composed of a steam turbine rearcylinder upper half and a steam turbine rear cylinder lower half; a cylinder horizontal matching surface is formed between the steam turbine front cylinder upper half and the steam turbine rear cylinder lower half; a cylinder air cylinder upper semi-vertical connecting assembling surface is formed between the upper half of the steam turbine front cylinder and the upper half of the steam turbine rear cylinder; a cylinder air cylinder lower semi-vertical connecting assembling surface is formed between the steam turbine front cylinder lower half and the steam turbine rear cylinder lower half; andthe air cylinder upper semi-vertical connecting assembling surface is axially staggered with the air cylinder lower semi-vertical connecting assembling surface. According to the staggered steam turbine cylinder vertical connecting assembling surface assembly structure, "a cross joint" between the horizontal connecting assembling surface and the vertical connecting assembling surface of the cylinder can be avoided, so that the risk of steam leakage is reduced.

Description

technical field [0001] The invention relates to a steam turbine cylinder vertical joint surface assembly structure, in particular to a staggered steam turbine cylinder vertical joint surface assembly structure and the steam turbine cylinder, belonging to the technical field of steam turbine cylinders. Background technique [0002] A steam turbine is a device that converts steam internal energy into mechanical energy. Restricted by the different requirements for materials in different working environments and the limit size of large castings, the steam turbine cylinder is usually divided into several parts in the axial direction. [0003] For example, a certain type of pure condensing steam turbine is composed of two cylinders in the axial direction, which are the front cylinder and exhaust cylinder of the steam turbine. For another example, a certain type of double-split steam turbine is composed of three cylinders in the axial direction, which are the front cylinder, middl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01D25/24
CPCF01D25/24F01D25/243
Inventor 尹华劼尹刚熊春戴宇龙龚露吴方松范小平
Owner DONGFANG TURBINE CO LTD
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