Auxiliary machine integrated power source system with cylinder switching function for supplying heat

A function and auxiliary machine technology, applied in the field of auxiliary machine unified dispatching power source system, can solve problems such as difficult implementation

Pending Publication Date: 2019-02-05
XIAN XIRE ENERGY SAVING TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, it is very difficult to drive all the auxiliary machines of the power plant in the form of auxiliary machine dispatching power source.

Method used

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  • Auxiliary machine integrated power source system with cylinder switching function for supplying heat

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Embodiment Construction

[0029] The present invention is described in further detail below in conjunction with accompanying drawing:

[0030] see figure 1 , the present invention discloses an auxiliary machine unified mobilization power source system with the function of cutting cylinders and heating, including a high-pressure cylinder 1, a low-pressure cylinder 2, a generator 3, a first valve 4, a cooling steam bypass 5, a circulating water lift Pressure pump 6, vacuum pump 7, condenser 8, condensate pump 9, heating network heater 10, drain pump 11, peak heater 12, load 13, second valve 14, first steam pipeline 15, cooling steam valve 16 , the second steam pipeline 17, the main engine thermal system 18, and the main engine condenser 19.

[0031] The steam source of the high-pressure cylinder 1 is extracted from the unit boiler or steam turbine. The steam output pipeline of the high-pressure cylinder 1 is divided into two paths, one is connected with the low-pressure cylinder 2, and the other is conn...

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Abstract

The invention discloses an auxiliary machine integrated power source system with a cylinder switching function for supplying heat. One path of steam output by a high-pressure cylinder leads to a low-pressure cylinder, and the other path is led to a hot-net heater; each steam pipeline is provided with a valve, and the connecting and the disconnecting of the steam pipelines are controlled; the high-pressure cylinder and the low-pressure cylinder are the same power input shaft, the terminal of the power input shaft is connected with a generator, the generator is driven, and the generator drives aload to run; a low-pressure cylinder zero-output technology is applied when heat supply is carried out in winter, the rest of steam both enters the hot-net heater to realize external heat supply; a pure-condensation working condition is maintained to run in a non-heat-supply season, and the high-pressure cylinder and the low-pressure cylinder jointly drive the generator to generate electricity; during heat supply conversion, only the valves on different steam pipelines need to be adjusted, the cylinder switching function can be realized; the reaction is rapid, and the system is simple; the steam exhaust of a small steam turbine in winter is almost all used for the heat supply, the loss of a source is avoided, and the heat economical efficiency is high.

Description

【Technical field】 [0001] The invention belongs to the field of energy saving and consumption reduction of coal-fired units, and specifically relates to an auxiliary machine unified mobilization power source system with a cylinder cutting function and heat supply. 【Background technique】 [0002] When designing a thermal power plant, the selection of auxiliary equipment is often selected according to the maximum load with a certain margin. In actual operation, due to deviation from the design operating point, the operating efficiency of auxiliary machines is generally lower than the design value, resulting in power loss, especially when the thermal power unit participates in peak regulation, the power loss due to the low efficiency of auxiliary machines is serious. Therefore, when conditions permit, some auxiliary machines operate with speed regulation to reduce throttling losses and improve their operating efficiency, which can often produce better energy-saving effects. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01K7/16F01D15/10
CPCF01K7/16F01D15/10F01K11/02F01K17/02
Inventor 居文平韩立马汀山吕凯王东晔兀鹏越许朋江付亦葳
Owner XIAN XIRE ENERGY SAVING TECH
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