Optimized operation method of vacuum pump set of thermal power plant

A thermal power plant, optimized operation technology, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve the problem of few cleaning coefficients

Active Publication Date: 2019-11-19
GUODIAN NANJING ELECTRIC POWER TEST RES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when the invention uses the formula for calculating the overall heat transfer coefficient, it adopts the designed condenser cleaning coefficient of 85%, but in practice, the cleaning coefficient of the condenser is generally maintained at 70% to 80%, and it is rarely able to fully reach its design. cleaning factor

Method used

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  • Optimized operation method of vacuum pump set of thermal power plant
  • Optimized operation method of vacuum pump set of thermal power plant
  • Optimized operation method of vacuum pump set of thermal power plant

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Embodiment 1

[0052] This embodiment adopts the method for optimizing the operation of a vacuum pump set in a thermal power plant of the present invention to optimize the operation of a vacuum pump set. The monitoring system used in this method includes a condenser 9, a vacuum pump set, a circulating water pump, a cooling tower, and a condenser. The suction of 9 is connected to the vacuum pump group through the suction pipe; the water inlet of the condenser 9 water chamber is connected to the circulating water pump through the circulating cooling water inlet pipe 3. The other side of the circulating water pump is connected to the tower pool at the bottom of the cooling tower, and the water outlet of the water chamber is connected through The circulating cooling water return pipe 2 is connected to the cooling tower 1. The vacuum pump set in this embodiment includes three vacuum pumps, namely vacuum pump A11, vacuum pump B12, and vacuum pump C13; the three vacuum pumps are all selected as water...

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Abstract

The invention discloses an optimized operation method of a vacuum pump set of a thermal power plant. The overall heat transfer coefficient of a condenser is taken as the basis; the influence of the circulating cooling water flow and the circulating cooling water temperature on the total heat transfer coefficient of the condenser is considered; and then, the variable quantity of the total heat transfer coefficient of the condenser is converted into the variable quantity of the pressure of the condenser through a K-P conversion coefficient, on this basis, the efficiency improvement income of thesteam turbine and the power consumption loss of the vacuum pump are compared, and then energy-saving quantity data are obtained. The method can help thermal power plant operation personnel to judge the rationality of the vacuum pump operation number through a quantitative method, errors caused by experience are avoided, and the method is convenient to operate, simple in calculation process and beneficial to development of energy-saving work of the thermal power plant.

Description

Technical field: [0001] The invention specifically relates to an optimized operation method of a vacuum pump set in a thermal power plant, and belongs to the technical field of thermal power generation. Background technique: [0002] Since the vacuum system of thermal power plants is not absolutely tight, the outside air will leak to the condenser. In addition, the non-condensable gas contained in the steam is precipitated during condensation. The air accumulated in the condenser will cause an air film to form on the surface of the condenser heat exchange tube bundle and reduce the heat transfer effect. The function of the vacuum pump is to extract the air and non-condensable gas in the condenser in time to reduce the heat transfer resistance of the condenser heat exchange tube bundle, so as to achieve the effect of maintaining the condenser pressure and reducing the condenser pressure. If the vacuum pump can completely extract the leaked air and non-condensable gas, the heat ex...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q50/06G06F17/50
CPCG06Q50/06Y02E40/70Y04S10/50
Inventor 谭锐杨文正李呈桐薛海郝飞吕婧蒋国安
Owner GUODIAN NANJING ELECTRIC POWER TEST RES CO LTD
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