Supercritical 145MW-grade primary intermediate reheating reaction steam turbine

A supercritical, reactionary technology, applied in steam engine devices, engine components, machines/engines, etc., can solve the problems of low cycle efficiency and low efficiency of small and medium-sized steam turbine cylinders, and achieve improved cycle efficiency, high safety, and reduced construction costs. cost effect

Pending Publication Date: 2022-05-13
HARBIN TURBINE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems of low cylinder efficiency and low cycle efficiency of the existing small and medium-sized steam turbines, the present invention further provides a supercritical 145MW grade once intermediate reheating reaction steam turbine

Method used

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  • Supercritical 145MW-grade primary intermediate reheating reaction steam turbine
  • Supercritical 145MW-grade primary intermediate reheating reaction steam turbine
  • Supercritical 145MW-grade primary intermediate reheating reaction steam turbine

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Experimental program
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specific Embodiment approach 1

[0026] Specific implementation mode one: combine Figure 1-Figure 5 Describe this embodiment mode, a supercritical 145MW level one-time intermediate reheat reaction steam turbine described in this embodiment mode, which includes a high-pressure cylinder 1, a medium-low pressure cylinder 2, a front bearing box 3, a middle bearing box 4, a rear bearing box 5, High pressure rotor 8, medium and low pressure rotor 9, first bearing 10, second bearing 11, third bearing 12, main oil pump 13, thrust bearing 14 and two sliding mechanisms 15, medium and low pressure rotor 9 and high pressure rotor 8 from left to The right is connected sequentially, the medium and low pressure cylinder 2 is set on the medium and low pressure rotor 9, the high pressure cylinder 1 is set on the high pressure rotor 8, the electric end of the medium and low pressure rotor 9 is set with the third bearing 12, the electric end and the adjustment end of the high pressure rotor 8 are respectively The second bearin...

specific Embodiment approach 2

[0030] Specific implementation mode two: combination figure 1 To illustrate this embodiment, two high-pressure steam intake ports 1-3 and two balance hub steam leakage ports 1-4 are installed on the high-pressure cylinder 1 described in this embodiment, and the two high-pressure steam intake ports 1-3 are installed symmetrically On the top and bottom of the high-pressure cylinder 1, two balance hub steam leakage ports 1-4 are symmetrically installed on the top and bottom of the high-pressure cylinder 1, and the bottom of the high-pressure cylinder 1 is provided with a high-pressure steam exhaust port 1-1 and a No. 1 steam extraction port 1-2, balance hub steam leakage port 1-4, high-pressure steam supply port 1-3, No. 1 steam extraction port 1-2 and high-pressure steam exhaust port 1-1 are close to the first bearing from left to right 10 settings. The two balance hub steam leakage ports 1-4 are connected to the steam turbine bypass system to lead out the high-temperature stea...

specific Embodiment approach 3

[0032] Specific implementation mode three: combination figure 1 To illustrate this embodiment, the bottom of the middle and low pressure cylinder 2 described in this embodiment is provided with No. 8 steam extraction port 2-1, No. 7 steam extraction port 2-2, No. 6 steam extraction port 2-3, No. 5 steam extraction port 2-4, No. 3 steam extraction port 2-5 and No. 4 steam extraction port 2-6.

[0033] Other compositions and connections are the same as those in Embodiment 1 or 2.

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Abstract

The invention discloses a supercritical 145MW-grade primary intermediate reheating reaction steam turbine, relates to a 145MW-grade steam turbine, and aims to solve the problems of low cylinder efficiency and low cycle efficiency of the existing small and medium-sized steam turbine. The hydraulic system comprises a high-pressure cylinder, a medium-low-pressure cylinder, a front bearing box, a middle bearing box, a rear bearing box, a high-pressure rotor, a medium-low-pressure rotor, a first bearing, a second bearing, a third bearing, a main oil pump, a thrust bearing and two sliding mechanisms, the electric end of the medium-low-pressure rotor is sleeved with the third bearing, and the electric end and the adjusting end of the high-pressure rotor are sleeved with the second bearing and the first bearing correspondingly; the first bearing is located in the front bearing box, the second bearing is located in the middle bearing box, a sliding mechanism is arranged at the bottom of the front bearing box and the bottom of the middle bearing box, the third bearing is located in the rear bearing box, and the high-pressure cylinder is supported on the front bearing box and the middle bearing box. The adjusting end of the middle-low pressure cylinder is supported on the middle bearing box, and the electric end of the middle-low pressure cylinder is supported on the foundation.

Description

technical field [0001] The invention relates to a 145MW grade steam turbine, in particular to a supercritical 145MW grade primary reheat reaction steam turbine, and the invention relates to the technical field of steam turbines. Background technique [0002] The small and medium-sized steam turbines currently in service in my country have early forming designs, mostly with high temperature and high pressure parameters, and generally have problems such as low main steam parameters, unreasonable system design and structural design, low unit cycle efficiency, high coal consumption for power supply, not only low energy utilization rate but also pollution Emissions are large. Contents of the invention [0003] In order to solve the problems of low cylinder efficiency and cycle efficiency of existing small and medium-sized steam turbines, the present invention further provides a supercritical 145MW level primary reheating reaction steam turbine. [0004] The technical scheme tha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01K7/22F01K7/38F01D25/28F01D17/10F01D9/04F01D5/30F01D25/16F01D25/30F01D5/02
CPCF01K7/22F01K7/38F01D25/28F01D17/105F01D9/042F01D5/30F01D25/16F01D25/162F01D25/30F01D5/027
Inventor 刘洋鲍大虎丁莹姜喜星邹婉秋黄智敏
Owner HARBIN TURBINE
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