CN2398425Y

CN2398425Y - Thermotechnical linking output steam turbine

Info

Publication number: CN2398425Y
Application number: CN 99247579
Authority: CN
Inventors: 张光宇
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-12-19
Filing date: 1999-12-19
Publication date: 2000-09-27
Anticipated expiration: 2009-12-19

Abstract

The utility model relates to a steam turbine of heat output and joint production, which is provided with a bearing seat, an output shaft, a cylinder body (4), a blade wheel (5), a stator blade (2), and a rotor blade (3). The steam turbine of heat output and joint production is characterized in that the bearing seat is a double-bearing seat (6). The output shaft is a double-output shaft (1). A turbine stage which is composed of the stator blade (2) and the rotor blade (3) is provided with 3 to 8 stages. The steam turbine of heat output and joint production has the advantages of multi-stage structure and small volume. More than two devices can be driven simultaneously. A motor is replaced by a prime motor to operate under the conditions of small enthalpy drop, small power, small volume, and low rotary speed. The heat efficiency can be above 50 percent.

Description

The thermotechnical linking output steam turbine

The utility model relates to a kind of steam turbine, particularly relates to a kind of thermotechnical linking output steam turbine.

Existing various steam turbine comprise generating with and industrial steam turbine form turbine stage of stator blade and movable vane composition wherein by bearing support, single output shaft (singly stretching axle), cylinder block, impeller, stator blade and movable vane.This steam turbine is multilevel hierarchy when high-power, mostly be major diameter biserial velocity-compounded stage structure during small-power, when its volume less, when rotating speed is low, its efficient is all very low, if improve its efficient, just must strengthen impeller diameter, this just must increase its volume, thereby is unsuitable for the requirement of thermotechnical linking output aspect.Because these steam turbine have only single output shaft, it can't drive multiple device simultaneously, equally also is unsuitable for the needs of thermotechnical linking output.In addition, existing steam turbine all has the pressure lubrication device, so structure is comparatively complicated.

The purpose of this utility model provides a kind of thermotechnical linking output steam turbine, and it can remedy the above-mentioned deficiency of existing steam turbine.

The utility model has bearing support, output shaft, cylinder block, impeller, stator blade and movable vane, it is characterized in that described bearing support is a Double bearing support, and described output shaft is a double output shaft; The turbine stage of being made up of described stator blade and movable vane is the 3-8 level.

The utlity model has multilevel hierarchy, volume is little, can drive the equipment more than two simultaneously, under little enthalpy drop, small-power, small volume, slow-revving condition, replaces motor and moves as prime mover, and its thermal efficiency can reach more than 50%.

Below by embodiment and description of drawings the utility model.

Accompanying drawing is a structural representation of the present utility model.

The utility model has a Double bearing support (6), and it is supporting double output shaft (1) and cylinder block (4), and impeller (5) is contained on the double output shaft (1), and movable vane (3) is contained on the impeller (5), and stator blade (2) is contained on the cylinder block (4).Described stator blade (2) and movable vane (3) are formed a turbine stage, and the utility model has 3-8 turbine stage.The utility model does not have the pressure lubrication device, and structure is simplified greatly.

When using the utility model, the steam that uniform temperature (high temperature or middle temperature or low temperature), pressure (high pressure or middle pressure or low pressure) are arranged is promoted impeller (5) and is rotated by stator blade (2) ejection, drives double output shaft (1) output useful work by impeller (5); The steam that movable vane (3) flows out is through repeatedly discharging after the work done, and waste heat also can utilize.The utility model is applicable to have than the industrial enterprise of cauldron and most of thermoelectricity plant and enterprise provides cogeneration power plant for oneself, and its unique energy-saving effect bring very big economic benefit can for these enterprises.

Claims

1. a thermotechnical linking output steam turbine has bearing support, output shaft, cylinder block (4), impeller (5), stator blade (2) and movable vane (3), it is characterized in that described bearing support is Double bearing support (6), and described output shaft is double output shaft (1); The turbine stage of being made up of described stator blade (2) and movable vane (3) is the 3-8 level.