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Condensing steam turbine rear cylinder cooling system

A cooling system and steam turbine technology, which is applied to mechanical equipment, engine components, machines/engines, etc., can solve the problems of high cost, complex structure and large space requirement, and achieve the effects of convenient operation, high safety factor and low cost.

Pending Publication Date: 2017-08-11
中国船舶重工集团公司第七〇三研究所
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  • Abstract
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  • Application Information

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Problems solved by technology

Cooling the rear cylinder of the condensing steam turbine is mainly through the introduction of a water spray cooling system, but this method has a complex structure, requires a large space, and is expensive

Method used

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  • Condensing steam turbine rear cylinder cooling system

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Embodiment Construction

[0014] refer to figure 1 , a cooling system for the rear cylinder of a condensing steam turbine, the cooling system includes a vacuum device 4, a condenser 3 and a condensate pump 5, the condenser 3 is connected to the condensate pump 5 through a pipeline, and the condensate pump 5 is connected to the condensate pump 5 through a pipeline and a tee respectively The spray device 9 is connected to the condensate jellyfish pipe, the first check valve 6, the first stop valve 7 and the regulating valve 8 are installed on the pipeline of the condensate water pump 5 and the spray device 9, and the pipeline of the condensate water pump 5 and the condensate jellyfish pipe is installed There is a second check valve 10 and a second shut-off valve 11; the condenser 3 is connected to the vacuum device 4 through a pipeline, and a temperature measuring element 2 is arranged on the circuit between the condenser 3 and the rear cylinder 1 of the condensing steam turbine; The spray device 9 atomi...

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Abstract

The invention belongs to the technical field of steam turbine equipment, and in particular relates to a condensing steam turbine rear cylinder cooling system which comprises a vacuum extractor, a condenser and a condensing water pump, wherein the condenser is connected with the condensing water pump via a pipeline, the condensing water pump is connected with both a spraying device and a condensed water main pipe via pipelines and tee joints, a first non-return valve, a first disconnecting valve and a regulating valve are installed on the pipeline of the condensing water pump and the spraying device, and a second non-return valve and a second disconnecting valve are installed on the pipeline of the condensing water pump and the condensed water main pipe; the condenser is connected with the vacuum extractor via a pipeline, and a temperature measurement element is arranged on the pipeline of the condenser and a condensing steam turbine rear cylinder; the condensed water is atomized by the spraying device and enters the condensing steam turbine rear cylinder; and the regulating valve is a manually-operated valve or an electrically-operated valve. The condensing steam turbine rear cylinder cooling system of the invention has the advantages of simple structure, small occupied space, low cost, and good safety and reliability.

Description

[0001] Technical field: [0002] The invention belongs to the technical field of steam turbine equipment, and in particular relates to a cooling system for a rear cylinder of a condensing steam turbine. [0003] Background technique: [0004] During the operation of the condensing steam turbine, due to some characteristics (such as long-term no-load operation), the temperature of the rear cylinder of the condensing steam turbine will increase, which will cause the vibration of the condensing steam turbine to be large, resulting in shutdown. Therefore, it is necessary to cool the rear cylinder of this type of condensing steam turbine. The cooling of the rear cylinder of the condensing steam turbine is mainly through the introduction of a water spray cooling system at present, but this method has a complex structure, requires a large space, and is expensive. Therefore, it is very necessary to design a cooling system for the rear cylinder of the condensing steam turbine that does...

Claims

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Application Information

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IPC IPC(8): F01D25/12
CPCF01D25/12
Inventor 丁贤虎童金生龚卫红袁强
Owner 中国船舶重工集团公司第七〇三研究所
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