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Extraction back pressure heating steam turbine connected with exhaust steam recovery system

A technology of steam extraction back pressure and recovery system, which is applied in the direction of steam engine device, mechanical equipment, steam application, etc. It can solve the problems of unfulfilled industrial steam supply demand, waste of equipment resources, long-term shutdown, etc., and achieve strong engineering application value, Increased utilization, sufficient equipment and energy effects

Active Publication Date: 2021-07-20
DONGFANG TURBINE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Since heating has seasonality, in non-heating seasons, although the heat load of industrial steam supply still exists, the demand for heating steam heat load becomes zero, and the extraction steam turbine has no exhaust steam, so it cannot operate, resulting in The steam extraction back pressure steam turbine can only be shut down for a long time in the non-heating season, which cannot meet the industrial steam supply demand, resulting in a waste of equipment resources

Method used

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  • Extraction back pressure heating steam turbine connected with exhaust steam recovery system

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Effect test

Embodiment 1

[0026] Such as figure 1 As shown, a steam extraction backpressure heating type steam turbine connected with an exhaust steam recovery system in this embodiment includes a steam extraction backpressure steam turbine 1 and an exhaust steam recovery system. The exhaust steam recovery system includes a heat exchanger 2 , the exhaust port of the extraction back pressure steam turbine 1 communicates with the steam inlet of the heat exchanger 2 through the exhaust pipeline 5, the exhaust pipeline 5 is equipped with a first valve 51, and the upstream side of the first valve 51 A heating and steam supply pipeline 6 is communicated with the steam exhaust pipeline 5 , and a second valve 61 is installed on the heating and steam supply pipeline 6 .

[0027] When the present invention is adopted, the steam extraction back pressure steam turbine 1 is connected with the main steam inlet pipeline 3, and the industrial steam extraction port of the steam extraction back pressure steam turbine 1...

Embodiment 2

[0035] Based on the design of Embodiment 1, such as figure 1 As shown, a method of using a steam extraction backpressure heating steam turbine connected with an exhaust steam recovery system in this embodiment, in the heating season, close the first valve 51, open the second valve 61, and the steam extraction backpressure steam turbine The exhaust steam of 1 enters the heating steam supply pipeline 6 for heating; in the non-heating season, the first valve 51 is opened, the second valve 61 is closed, and the exhaust steam of the extraction back pressure steam turbine 1 enters the heat exchanger 2 for heating. exchange. Please refer to Embodiment 1 for the detailed usage method.

[0036] Optionally, in another embodiment, in non-heating seasons, the actual exhaust steam volume of the extraction backpressure steam turbine 1 is 10%-20% of the design exhaust steam volume. On the premise of ensuring the normal operation of the steam extraction backpressure steam turbine 1, the co...

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Abstract

The invention discloses a steam extraction backpressure heating type steam turbine connected with an exhaust steam recovery system and a use method thereof, and belongs to the technical field of steam extraction backpressure heating type steam turbines operable in heating seasons and non-heating seasons. A steam extraction back pressure heating type steam turbine connected with an exhaust steam recovery system of the present invention includes a steam extraction back pressure steam turbine and an exhaust steam recovery system. The exhaust steam recovery system includes a heat exchanger, and the steam extraction back pressure The exhaust port of the type steam turbine communicates with the steam inlet of the heat exchanger through the exhaust pipeline, the exhaust pipeline is equipped with a first valve, and the exhaust pipeline on the upstream side of the first valve is connected with a heating and steam supply pipeline. The heating steam supply pipeline is equipped with a second valve. When the present invention is adopted, no matter in the heating season or non-heating season, the steam extraction back pressure steam turbine can operate normally, which meets the industrial steam supply demand and can improve the utilization rate of the steam extraction back pressure steam turbine.

Description

technical field [0001] The invention relates to a steam extraction backpressure heating type steam turbine connected with an exhaust steam recovery system and a use method thereof, belonging to the technical field of steam extraction backpressure heating type steam turbines operable in heating seasons and non-heating seasons. Background technique [0002] The steam extraction back pressure heating type steam turbine refers to a steam extraction back pressure steam turbine, whose steam is extracted to industrial steam and exhausted to heating steam. [0003] In the heating season, the steam extraction backpressure steam turbine has both industrial steam supply heat load and heating steam supply heat load, and the steam extraction backpressure steam turbine can operate normally. [0004] Since heating has seasonality, in non-heating seasons, although the heat load of industrial steam supply still exists, the demand for heating steam heat load becomes zero, and the extraction s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01K17/02F01K17/06F01K7/38F01K7/44
CPCF01K7/38F01K7/44F01K17/02F01K17/06
Inventor 洪安尧史宣平张伟荣范小平尹刚刘金芳卫栋梁孙奇川果机小叶段艳雄黄黎肖春艳
Owner DONGFANG TURBINE CO LTD
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