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A monitoring method and monitoring device for predictive operation and maintenance of a condenser

A condenser and predictive technology, applied to steam/steam condensers, lighting and heating equipment, etc., can solve problems such as premature maintenance of condensers, untimely troubleshooting, and energy consumption during shutdown, so as to promote practical Effects of application and industrialization, ensuring safety, and reducing operating costs

Active Publication Date: 2019-12-06
上海铱钶环保科技有限公司
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Problems solved by technology

[0007] The technical problems to be solved in the present invention are: waste of resources for the condenser or due to premature maintenance and replacement of parts; or economic losses such as downtime and increased energy consumption due to untimely and time-consuming maintenance and troubleshooting

Method used

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  • A monitoring method and monitoring device for predictive operation and maintenance of a condenser

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Embodiment Construction

[0043] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0044] First, the framework structure of the condenser predictive operation and maintenance monitoring device is described as follows:

[0045] A thermal power plant has two 660MW generating sets, each with the same condenser, which is monitored by DCS.

[0046] see figure 1 The condenser predictive operation and maintenance monitoring device includes a condenser connected by signals in sequence, a condenser operating parameter monitoring device, a control module, an Internet of Things gateway, and a cloud platform; the cloud platform is connected to the client computer through a signal.

[0047] In this example, see figure 1 , the condenser operating parameter monitoring device is a device that simultaneously monitors the vacuum degree of the condenser, the heat exchange end difference, the temperature difference between the inlet and outlet...

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Abstract

The invention relates to a monitoring method for steam condenser prediction operation and maintenance. Main operation parameters such as steam condenser vacuum degree, heat exchange end difference, circulating cooling water inlet and outlet temperature difference and condensed water supercooling degree are continuously monitored online in a manner of internet of things to realize cloud storage andcloud computing; the prediction is kept in good or bad tendency; and if bad, different grades of alarm are given to adopt different maintenance dealing measures at the time of reaching an alarm value. The monitoring method can effectively prevent actual problems in traditional steam condenser maintenance: resource waste caused by early maintenance and replacement of parts, machine stop caused bydelayed maintenance and trouble elimination and long time, and economical loss caused by increment of the energy consumption; and the monitoring method is combined with an advanced IT technology to realize the state monitoring and the state prediction needed by the steam condenser prediction operation and maintenance to promote actual application and industrialization of the prediction operation and maintenance technology.

Description

technical field [0001] The invention relates to a monitoring method and a monitoring device for predictive operation and maintenance of a condenser, belonging to the technical field of condenser monitoring. Background technique [0002] Condenser is an important auxiliary equipment of steam turbine, which is widely used in thermal power plants and nuclear power plants. It condenses the exhaust steam of the steam turbine into water through heat exchange for reuse by the boiler, and also establishes and maintains a vacuum at the exhaust steam of the steam turbine, so that the exhaust steam of the unit can expand as much as possible to do work and reduce the loss of the cold source. The degree of vacuum is the most important operating parameter of the condenser, and its reduction will lead to insufficient output of the unit, increase in the power consumption rate of the factory, and an increase in the coal consumption rate of the power supply. In addition to the degree of vacu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28B11/00
CPCF28B11/00
Inventor 屠斌杰张留锁
Owner 上海铱钶环保科技有限公司
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