Ultralow-energy-consumption nitrogen making device

An energy-consumption, ultra-low technology, applied in the field of ultra-low energy-consumption nitrogen generators, can solve the problems of inflexible equipment adjustment and inability to meet the energy consumption requirements of users' air separation equipment, and achieve considerable economic benefits, maximizing economic benefits, and achieving effective results. Good results

Active Publication Date: 2014-04-30
浙江海畅气体股份有限公司
View PDF5 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the general practice is to partially expand, and the rest to throttle, and the output of the expander is boosted by fan braking to vent; the liquid air is not too cold or only simply exchanges heat with part of the fluid to overcool, the equipment adjustment is not flexible, or

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
  • Ultralow-energy-consumption nitrogen making device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] Below in conjunction with accompanying drawing, the present invention will be further described with specific embodiment, see figure 1 :

[0016] A low-energy nitrogen production device, including a rectification tower C1, a condensing evaporator K1, a booster turbo expander, a main heat exchanger E1, a liquid-air subcooler E2, and a nitrogen subcooler E3 connected by pipes and valves , the air passes through the pipelines 01, 04, 05, 06, 07, 11 in turn through the air filter AF, air compressor AC, sewage nitrogen heat exchanger E1001, water cooler WC, pre-cooling unit RU, molecular sieve purifier MS and main After the heat exchanger E1, it directly enters the bottom of the rectification tower C1 or enters the bottom of the rectification tower C1 after being expanded and pressurized by a booster turbo expander. The oxygen-enriched liquid air is obtained at the bottom of the rectification tower C1, and the liquid is passed through the pipeline 10. Empty subcooler E2 and...

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 belongs to the technical field of nitrogen making and relates to an ultralow-energy consumption nitrogen making device. Air sequentially passes an air filter, an air compressor, a waste nitrogen heat exchanger, a water cooler, a pre-cooling unit, a molecular sieve purifier and a main heat exchanger and directly enters the bottom of a rectifying tower or is expanded and pressurized through a pressurizing turbine expanding machine and then enters the bottom of the rectifying tower, oxygen-enriched liquid air is obtained at the bottom of the rectifying tower, the oxygen-enriched liquid air passes a liquid-air subcooler, is throttled and fed to the top of a condensing evaporator, the oxygen-enriched liquid air exchanges heat with nitrogen and forms liquid nitrogen at the condensing evaporator, the liquid nitrogen flows back to the top of the rectifying tower to serve as the reflux of the rectifying tower, high-purity nitrogen is obtained at the top of the rectifying tower, the high-purity nitrogen is output to the outside through the main heat exchanger, and another path of high-purity liquid nitrogen is output to the outside through a nitrogen subcooler. The ultralow-energy consumption nitrogen making device is low in tower pressure and suitable for nitrogen making in nitrogen making industries, energy consumption can be reduced by 30%, and the air moisture content is low.

Description

technical field [0001] The invention belongs to the technical field of nitrogen production, in particular to an ultra-low energy consumption nitrogen production device. Background technique [0002] With the rapid development of glass industry, metallurgy, metal processing industry, chemical industry, new material industry and other industries, the demand for nitrogen products is increasing and the requirements are increasing. At present, the energy consumption of air separation equipment for nitrogen production is low. On the high side, due to long-term operation, reducing energy consumption has become a key element of cost savings. At present, the general practice is to partially expand, and the rest to throttle, and the output of the expander is boosted by fan braking to vent; the liquid air is not too cold or only simply exchanges heat with part of the fluid to overcool, the equipment adjustment is not flexible, or the output is surplus. Air, or the output is insufficie...

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): F25J3/04
Inventor 陈崇文
Owner 浙江海畅气体股份有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap