Ultra-low-load operation system and operation method for coal-fired generating units

A generator set and coal-fired technology, which is applied in the direction of machines/engines, mechanical equipment, steam engine devices, etc., can solve the problems of denitrification reactor exhaust gas temperature drop performance deterioration, boiler combustion instability, coal mill instability, etc., to achieve Guarantee the efficiency of denitrification catalytic reaction, alleviate the pressure of peak regulation, and shorten the time of start-up and operation
CN107747503AInactive Publication Date: 2018-03-02SOUTHEAST UNIV +1
3 Cites 16 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SOUTHEAST UNIV
Publication Date
2018-03-02
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses an ultra-low-load operation system and an operation method for coal-fired generating units. The system is composed of two coal-fired generating units which operate in a unifiedmode, and each coal-fired generating unit consists of a steam turbine, a steam system, a vacuum air exhaust system, a condensed water system and a water feeding system; the steam systems of the generating units are connected through a heat steam connecting tube; and the water feeding systems of the generating units are connected through a water feeding connecting tube. The ultra-low-load operation system concentrates steam outlet force when the two units operate under ultra-low load on a main boiler, and solves the problems that boiler consumption is unstable, a coal mill, a fan and a denitrification reactor are unstable and the like when current coal-fired generating unit operates under the ultra-low load, and greatly improves safety and reliability of boiler operation control.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a coal-fired generating set and an operation method, in particular to a coal-fired generating set system and an operating method capable of ultra-low load operation. Background technique

[0002] With economic development, changes in power consumption and power consumption structure, the peak-to-valley difference in power grids continues to increase. China's current power structure dominated by thermal power and few energy storage peak-shaving power stations leads to insufficient peak-shaving capacity of the power grid. In order to support the development of renewable energy, the current method is to arrange a certain scale of coal-fired power generation units for peak regulation of renewable energy. The pressure of deep peak regulation of traditional thermal power units has further increased.

[0003] In order to solve the peak-shaving problem of thermal power units, a variety of technologies have been developed at home and ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More