Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method and device for preparing make-up water for power station boilers from municipal reclaimed water

A technology for power plant boilers and reclaimed water, applied in chemical instruments and methods, multi-stage water/sewage treatment, water/sludge/sewage treatment, etc., to achieve the effects of large hydraulic load, low operating cost, and large volumetric load

Inactive Publication Date: 2012-04-11
LIAONING DIAOBINGSHAN COAL GANGUE POWER GENERATION CO LTD
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, there is no method and equipment for producing power plant boiler feed water using urban reclaimed water as a water source

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and device for preparing make-up water for power station boilers from municipal reclaimed water
  • Method and device for preparing make-up water for power station boilers from municipal reclaimed water

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0032] The method for making power plant boiler feed water with urban reclaimed water has the following steps:

[0033] (1) The urban regenerated water is sent from the regulating tank to the biological aerated filter, and the urban regenerated water is treated by the front and rear two-stage biological aerated filter,

[0034] The main function of biological aerated filter is to remove organic matter and ammonia nitrogen in urban reclaimed water, and at the same time remove the turbidity of urban regenerated water. After passing through biological aerated filter, the water quality stability of the pretreated water can be improved and become It is not easy to be corrupted and smelly, and the COD value, BOD value and ammonia nitrogen of the sewage are greatly reduced to meet the requirements of the subsequent process. The urban reclaimed water is treated by a two-stage biological aerated filter to obtain clear pretreated water, and the pretreated water enters the pretreatment p...

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

No PUM Login to View More

Abstract

The invention discloses a method and device for preparing make-up water for power station boilers from municipal reclaimed water, which comprises the following steps of: (1) taking municipal reclaimed water, carrying out treatment on the municipal reclaimed water by using a biological aerated filter so as to obtain pretreated water; (2) carrying out treatment on the pretreated water by using an immersed ultra-filtrated water treatment device so as to obtain ultra-filtrated water; (3) carrying out treatment on the ultra-filtrated water by using a reverse osmotic water treatment device so as to obtain reverse osmotic water; and (4) carrying out treatment on the reverse osmotic water by using an EDI (electro-deionization) water treatment device so as to obtain the make-up water for power station boilers. In the invention, make-up water (with high requirements on water quality) for power station boilers is prepared through taking municipal reclaimed water as a water source, so that clean freshwater resources can be effectively saved, and the water pollution can be reduced, thereby realizing the benign circulation of water in the nature, so, the method and device disclosed by the invention are important measures for implementing sustainable development. The method disclosed by the invention is simple; the biological aerated filter is large in volume loading and hydraulic loading and short in hydraulic retention time; and the device is small in investment, low in energy consumption for running, and less in running cost.

Description

technical field [0001] The invention relates to a method and equipment for producing boiler feed water in a thermal power plant, in particular to a method and equipment for producing boiler feed water in a thermal power plant using urban reclaimed water as a water source. Background technique [0002] The power plant boiler is a heat exchange equipment for producing high-pressure steam for the steam turbine. The heat exchange medium of the power plant boiler is water. When the power plant boiler is in normal operation, it must continuously replenish water to the power plant boiler. The higher the working pressure of the boiler, the greater the evaporation capacity. The higher the water quality requirements, the quality of boiler feed water has a crucial impact on the safe operation, energy consumption and service life of boilers and steam turbines. In order to obtain the make-up water required for the normal operation of the power plant boiler, not only an efficient water tr...

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
no application Login to View More
IPC IPC(8): C02F9/14C02F1/44
Inventor 苏杰刘宝华万广东杨兆江董雪峰王伟付新宇郑毅王新蕾
Owner LIAONING DIAOBINGSHAN COAL GANGUE POWER GENERATION CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com