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Radial double-flow turbine

A steam turbine and double-flow technology, applied in the field of steam turbines, can solve the problems of generating axial force and easily reducing efficiency, etc., and achieve the effects of small energy loss, significant energy saving effect, and good rigidity

Inactive Publication Date: 2008-12-17
程建平 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention solves the disadvantages in the prior art that the steam turbine generates axial force when doing work, which easily reduces the efficiency, and provides a radial double-flow steam turbine that can significantly reduce the axial force and effectively use energy to do work

Method used

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Experimental program
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Effect test

Embodiment

[0046] Embodiment: The radial double-flow steam turbine (see accompanying drawing 1) comprises a base 1, a front bearing housing 2 and a rear bearing housing 3 arranged on the base and an adjusting actuator 5 arranged on the front bearing housing, the front bearing housing and the rear bearing housing A steam turbine body 6 is arranged between the bearing boxes, and a main shaft 40 is arranged in the steam turbine body, and the main shaft communicates with the front bearing box and the rear bearing box. There is a centripetal integral impeller 50 on both sides of the impeller respectively, the main shaft and each integral impeller adopt an integral structure, and each integral impeller is arranged with equal diameters (see attached Figure 10 ).

[0047] Front bearing box (see attached Figure 18 attached Figure 19 ) consists of a set of overspeed protection device, a bevel gearbox, a reducer and a bearing box. End cover, limit switch 10, oil inlet pipe, lubricating oil pi...

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Abstract

The invention relates to a steam turbine, in particular to a radial direction double flow type steam turbine which can effectively reduce axial force and use steam flow energy as much as possible. Double rows of centripetal integral impellers are arranged at the center of a live spindle, centrifugal integral impellers are arranged at two sides. The integral impellers do work when steam flow carries out centripetal movement to push the spindle to rotate, and do work again in the centrifugal stage to push the spindle to rotate after the angular transformation, and enter the next circulation. The structure can counteract the generated axial force, reduce the structure, use the centrifugal energy, and improve the efficiency.

Description

technical field [0001] The invention relates to a steam turbine, especially a radial double-flow steam turbine capable of offsetting generated axial force and utilizing the enthalpy drop of heat energy of steam flow to perform work. Background technique [0002] At present, the traditional steam turbines that have been widely used in industrial drives are all blade and impeller assembly steam turbines, including condensing steam, extraction steam condensing, back pressure, extraction back pressure and other structures, and their structural principles are the same. It is an axial flow type, and the rotor can be divided into single-stage and multi-stage structures according to requirements, relying on the expansion of the working fluid to do work, including steam inlet chamber, nozzle group, blade, impeller, main shaft, stator, exhaust chamber, etc. Low thermal efficiency, high energy consumption, complex structure, high requirements and difficulty in blade processing, long pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01D1/06F01D5/04F01D5/14F01D9/02F01D17/14
Inventor 程建平郑群
Owner 程建平
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