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A red collar type turbine cylinder structure

A technology of turbine cylinder and red sleeve, applied in the direction of machine/engine, engine function, mechanical equipment, etc., can solve the problems of loose displacement of red sleeve ring, insufficient stability and reliability, limited limit effect, etc., to improve stability The effect of reducing the difficulty of manufacturing technology and ensuring the effect of fastening and sealing

Active Publication Date: 2020-02-14
DONGFANG TURBINE CO LTD
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The above-mentioned existing red collar type turbine cylinder structure, although the red collar is axially limited by the screw on the cylinder body, but during its operation, the red collar has the possibility of loosening and shifting to the non-limiting side , the limit effect is limited, and the stability and reliability are insufficient

Method used

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  • A red collar type turbine cylinder structure
  • A red collar type turbine cylinder structure
  • A red collar type turbine cylinder structure

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Embodiment Construction

[0029] The invention relates to a turbine cylinder, in particular to a red collar type turbine cylinder structure. Below in conjunction with the accompanying drawings of the description - that is image 3 and Figure 4 Describe clearly and in detail the technical content of the present invention.

[0030] see image 3 and Figure 4 As shown, the present invention includes a cylindrical cylinder body 1 and a plurality of red collars 2 that match the corresponding red sleeve parts of the cylinder body 1, and each red collar 2 is assembled on the cylinder body 1 in a red sleeve interference manner At the same time, the inner surface of the red collar 2 is matched with the outer surface of the corresponding red collar on the cylinder body 1 for interference fit, that is, the inner surface of the red collar 2 matches the outer surface of the corresponding red collar on the cylinder body 1.

[0031] The inner surface of each red collar 2 is a convex arc surface structure, and th...

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Abstract

The invention discloses a red collar type turbine cylinder structure, comprising a cylinder body and at least one red collar, the inner surface of the red collar matches the outer surface of the corresponding red collar on the cylinder body, the red collar The inner surface of the collar is a convex arc structure, and the outer surface of the corresponding red collar on the cylinder body is an inner concave arc structure matching the outer convex arc structure of the inner surface of the red collar. The outer convex arc red sleeve on the inner surface of the red collar is interference-fitted on the inner concave arc surface of the corresponding red collar part on the cylinder body, and the red collar is axially mounted on the corresponding red collar part on the cylinder body. towards the self-locking bit. The invention effectively ensures the fastening and sealing effect of the turbine cylinder, thereby effectively improving the stability, reliability and safety of the turbine cylinder operation.

Description

technical field [0001] The invention relates to a turbine cylinder, in particular to a red collar type turbine cylinder structure. Background technique [0002] As an important turbine pressure vessel on a steam turbine, the turbine cylinder needs to withstand the work of the high-pressure medium. With the technical requirements to increase the work efficiency of steam turbines with large capacity and high parameters, such as ultra-supercritical steam turbines, the parameters and density of steam, the work medium used in steam turbines, have been increased, which will have a negative The strength and stability of the flat cylinder pose many technical challenges. [0003] In order to ensure that the turbine cylinder can withstand high-parameter steam work to achieve efficient and stable operation, steam turbines, especially supercritical / ultra-supercritical steam turbines, often use red sleeve turbine cylinders as high-pressure inner cylinders. [0004] The red-sleeved turb...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01D25/28
CPCF01D25/28F05D2240/70F05D2260/30
Inventor 张晓东谢涛王建伟侯明军翟璇王娟胥睿田志强
Owner DONGFANG TURBINE CO LTD
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