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100MW subcritical single-cylinder single-exhaust steam turbine

A subcritical and steam turbine technology, applied in the direction of steam engine devices, mechanical equipment, engine components, etc., can solve the problems of low unit cycle efficiency, unreasonable design, poor overall performance, etc., to shorten the length of shafting, shorten the length of the unit, The effect of high security

Pending Publication Date: 2021-04-09
HARBIN TURBINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems that the unit types are two-cylinder single-exhaust steam structure with the same parameters, the design is not reasonable, the unit cycle efficiency is low, the cylinder efficiency is low, the overall performance is poor, and the cost is high, and further provides a 100MW subcritical single Cylinder single exhaust steam turbine

Method used

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  • 100MW subcritical single-cylinder single-exhaust steam turbine
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  • 100MW subcritical single-cylinder single-exhaust steam turbine

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specific Embodiment approach 1

[0014] Specific implementation mode one: refer to Figure 1 to Figure 3 Describe this embodiment. This embodiment provides a 100MW subcritical single-cylinder single-exhaust steam turbine, which includes a front bearing box 1, a rear bearing box 2, a high-pressure main steam regulating valve 3, and a medium-pressure reheat regulating valve 4. , high-pressure cylinder 5, medium-low pressure cylinder 6, low-pressure exhaust steam cylinder 7 and rotor 8 as a whole; high-pressure cylinder 5, medium-low pressure cylinder 6 and low-pressure exhaust cylinder 7 are fixedly connected in sequence, and the front bearing housing 1 is set close to the high-pressure cylinder 5 , the rear bearing housing 2 is set close to the low-pressure exhaust steam cylinder 7, and the rotor 8 is arranged in the front bearing housing 1, the high-pressure cylinder 5, the medium-low pressure cylinder 6, the low-pressure exhaust steam cylinder 7 and the rear bearing housing 2 in turn, and the high-pressure ma...

specific Embodiment approach 2

[0015] Specific implementation mode two: refer to Figure 1 to Figure 3 Describe this embodiment. This embodiment provides a 100MW subcritical single-cylinder single-exhaust steam turbine. The overall rotor 8 includes a high-temperature zone rotor, a low-temperature zone rotor, and a plurality of rotor connecting bolts. The high-temperature zone rotor and the low-temperature zone rotor are along a straight line. Coaxial arrangement, one end of the rotor in the high temperature zone and one end of the rotor in the low temperature zone are fixedly connected by a plurality of rotor connecting bolts. Other compositions and connection methods are the same as those in Embodiment 1.

specific Embodiment approach 3

[0016] Specific implementation mode three: refer to Figure 1 to Figure 3 Describe this embodiment. This embodiment provides a 100MW subcritical single-cylinder single-exhaust steam turbine. The front bearing box 1 and the rear bearing box 2 are both placed on the ground, and the connection between the front bearing box 1 and the rotor 8 is provided with a separate dead point. .

[0017] Ensure that the low-pressure end steam seal and the rotor gap installed on it will not be affected by the deformation and temperature of the low-pressure cylinder. The two sections before and after have different mechanical properties, which not only meet the high temperature strength requirements of the high temperature section, but also meet the high strength and low brittle transition temperature performance of the low temperature section. Other compositions and connection methods are the same as those in Embodiment 1.

[0018] In this embodiment, in the high-pressure main steam regulatin...

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Abstract

The invention discloses a 100MW subcritical single-cylinder single-exhaust steam turbine, belongs to the field of steam turbine transformation, and aims to solve the problems of unreasonable design, low unit circulation efficiency, low cylinder efficiency, poor overall performance and relatively high cost due to the fact that a unit is of a two-cylinder single-exhaust structure under the same parameters. The 100MW subcritical single-cylinder single-exhaust steam turbine comprises a front bearing box, a rear bearing box, a high-pressure main steam adjusting combination valve, a medium-pressure reheating adjusting combination valve, a high-pressure cylinder, a medium-low-pressure cylinder, a low-pressure steam exhaust pressure cylinder and a rotor whole body; the high-pressure cylinder, the middle-low pressure cylinder and the low-pressure steam exhaust pressure cylinder are fixedly connected in sequence; the front bearing box is arranged close to the high-pressure cylinder; the rear bearing box is arranged close to the low-pressure steam exhaust pressure cylinder; the rotor is integrally arranged in the front bearing box, the high-pressure cylinder, the middle-low pressure cylinder, the low-pressure steam exhaust pressure cylinder and the rear bearing box in sequence; and the high-pressure main steam adjusting combined valve and the medium-pressure reheating adjusting combination valve are arranged on the two sides of the high-pressure main steam adjusting combination valve correspondingly. The 100MW subcritical single-cylinder single-exhaust steam turbine is used in the field of turbines.

Description

technical field [0001] The invention belongs to the field of steam turbine transformation, and in particular relates to a 100MW subcritical single-cylinder single-exhaust steam turbine. Background technique [0002] With the continuous development of the society and the continuous improvement of the industrial level, the existing steam turbine has an early molding design and low main steam parameters, which can no longer meet the current industrial production. For the same parameters, the unit type is a two-cylinder single-exhaust steam structure, the design is not reasonable, the unit cycle efficiency is low, the cylinder efficiency is low, the overall performance is poor, and the cost is high. Contents of the invention [0003] In order to solve the problems that the unit types are two-cylinder single-exhaust steam structure with the same parameters, the design is not reasonable, the unit cycle efficiency is low, the cylinder efficiency is low, the overall performance is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01D13/02F01D9/04F01D5/30F01D25/00F01K7/32F01K11/02
CPCF01D13/02F01D5/30F01D9/041F01D9/042F01D25/00F01K7/32F01K11/02
Inventor 余海鹏道尔吉苏荣高敏潘春雨刘娇梁云河孙嘉孙静宇
Owner HARBIN TURBINE
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