Liquid drop collection device and liquid drop collection system for liquid drop elimination after wet desulfurization
A collection device and wet desulfurization technology, which is applied in the field of energy saving and emission reduction, and can solve the problems of upflow and downflow of droplets.
Pending Publication Date: 2019-10-11
NORTH CHINA POWER ENG
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Therefore, there is a dynamic upflow and downflow phenomenon in the liquid droplets in the chimney
Method used
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
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0026] One of the key points of the present invention is the droplet collection device for eliminating droplets after wet desulfurization. For the convenience of description, the direction of flue gas flow is defined as the rear, and the direction of the source of flue gas is defined as the front.
[0027] A one-way or two-way annular liquid blocking part 5 is arranged in the inner wall of the cylinder or the inner wall of the flue. A one-way or two-way annular guide groove 51 is formed between the annular liquid blocking part 5 and the inner wall. The axial direction of the guide groove 51 The cylinder wall or flue wall within the projection range h2 is perforated with a plurality of liquid holes 41 at intervals, such as Figure 5 shown in the sectional view.
[0028] A liquid collection tank 6 is arranged around the liquid hole outside the cylinder wall or outside the flue wall, and the lowest point of the liquid collection tank 6 is connected to the liquid discharge pipe 7 ...
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 PUM
Login to View More Abstract
The invention discloses a liquid drop collection device and a liquid drop collection system for liquid drop elimination after wet desulfurization. The liquid drop collection device is arranged in an inner tube of a chimney or an after-desulfurization flue, a one-way or two-way annular liquid retaining portion is annularly arranged in the tube wall or the flue wall, a one-way or two-way guide channel is formed between the annular liquid retaining portion and the inner wall, and the tube wall or the flue wall in an axial projection range of the guide channel is penetratingly provided with liquidthrough holes at intervals. The tube wall or the flue wall is externally and annularly provided with liquid collecting grooves corresponding to the liquid through holes, and the liquid collecting grooves are provided with liquid discharging pipes. The liquid drop collection system comprises a multistage liquid drop collection device and a liquid drop recovery device, the multistage liquid drop collection device comprises the one-way and two-way liquid drop collection devices, liquid crops are collected to the liquid drop recovery device through the liquid discharging pipes of each stage, andbackwashing systems are arranged in the liquid collecting grooves and the liquid discharging pipes. By reasonable arrangement of the multistage liquid drop collection device, the liquid drop recoverydevice and the backwashing systems, liquid drops in the flue and the chimney can be effectively collected and discharged to solve or relieve the problem of 'gypsum rain', and recycling of collected liquid is realized.
Description
technical field [0001] The invention belongs to the field of energy saving and emission reduction, and relates to the flue gas treatment of coal-fired thermal power plants in the electric power industry, specifically a device for eliminating liquid droplets after wet desulfurization. Background technique [0002] At present, most coal-fired power stations in my country adopt the limestone-gypsum wet desulfurization process. After desulfurization, the flue gas will usually reach a saturated state, and the temperature will drop to 45 ° C ~ 55 ° C. The saturated wet flue gas will be discharged from the chimney lined with anti-corrosion materials, forming " Wet stack" emission scheme. If the wet flue gas is not heated, condensate will be formed during the discharge process, accompanied by uncaptured gypsum droplets produced by wet desulfurization. When the flue gas flow rate is large, especially when the local temperature and pressure are low or in During the period of cloudy we...
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 Application Information
Patent Timeline
Login to View More IPC IPC(8): B01D53/80B01D53/50
CPCB01D53/502B01D53/002B01D2258/0283B01D2251/404B01D2251/606B01D2251/608
Inventor 王巍刘闯
Owner NORTH CHINA POWER ENG