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Steam mixing system for realizing denitration temperature rise and adjusting method of steam mixing system

A steam and mixing technology, applied in the field of flue gas denitration treatment, can solve the problems of poor load adaptability, high investment cost, easy jamming of the baffle door, etc., and achieve strong ability to adapt to load changes, reduce heat absorption, and improve heating efficiency effect

Active Publication Date: 2021-09-17
北京天瑞泰达电力工程有限公司
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  • Application Information

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Problems solved by technology

Flue gas bypass technology, the baffle door is easy to jam, the load adaptability is poor, and the investment cost is high

Method used

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  • Steam mixing system for realizing denitration temperature rise and adjusting method of steam mixing system
  • Steam mixing system for realizing denitration temperature rise and adjusting method of steam mixing system
  • Steam mixing system for realizing denitration temperature rise and adjusting method of steam mixing system

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Embodiment Construction

[0034] Preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, not to limit the present invention.

[0035] The invention discloses a steam mixing system for denitrification and temperature raising, such as figure 1 As shown, it includes a driving steam isolation unit, a steam mixing device (101), a high-pressure heater (102) and an economizer (103) connected in sequence through a steam pipeline, and the steam pipeline is provided with a pressure and temperature detection device , the inlet of the steam pipeline is connected with the low-temperature and low-pressure steam pipeline, the high-pressure heater (102) is connected with the high-temperature and high-pressure steam pipeline, the injection port of the steam mixing device (101) is connected with the high-temperature and high-pre...

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Abstract

The invention discloses a steam mixing system for realizing denitration temperature rise and an adjusting method of the steam mixing system. The steam mixing system comprises a driving steam isolation unit, a steam mixing device, a high-pressure heater and an economizer which are sequentially connected through a steam pipeline, the steam pipeline is provided with a pressure and temperature detection device, an inlet of the steam pipeline is connected with a low-temperature and low-pressure steam pipeline, the high-pressure heater is connected with a high-temperature and high-pressure steam pipeline, an injection opening of the steam mixing device is connected with the high-temperature and high-pressure steam pipeline through a steam pipeline, the steam mixing device is connected with a driving steam adjusting unit in parallel, feed water passes through the high-pressure heater and then is heated by the economizer to flow out, and boiler flue gas passes through the economizer and then enters a denitration system (SCR). According to the system and the method, the peak regulation capacity and the unit operation flexibility of a thermal power enterprise unit are improved, denitration full-load section adjustment can be realized, the load change adaptability is high, and the system and the method are suitable for the technical field of flue gas denitration treatment.

Description

technical field [0001] The invention belongs to the technical field of flue gas denitrification treatment, and in particular relates to a steam mixing system for realizing denitrification and temperature raising and an adjustment method thereof. Background technique [0002] In the current form, renewable energy is developing rapidly. Based on the characteristics of intermittent power generation of clean energy, the demand for adjustable capacity of the power system has increased dramatically. In addition to providing stable power supply, conventional thermal power units also need to undertake the peak regulation obligation of the overall power system. In recent years, with the rapid development of renewable energy, there have been serious abandonment of wind and light, and the consumption of new energy has become a key factor restricting the development of renewable energy; based on my country's energy consumption rules, the proportion of clean energy is increasing, and win...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F22D1/32F22G5/12F23J15/08
CPCF22D1/325F22G5/123F23J15/08F23J2215/10F23J2215/101
Inventor 白宏明
Owner 北京天瑞泰达电力工程有限公司
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