Ultralow temperature processing method and ultralow temperature processing device for liquefied natural gas (LNG) equipment

A liquefied natural gas and ultra-low temperature technology, which is used in metal processing equipment, metal processing machinery parts, manufacturing tools, etc., can solve the problems of short service life and failure of equipment, and achieve the effect of improving service life and avoiding wear and tear.

Inactive Publication Date: 2014-08-20
JIANGSU UNIV
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, LNG equipment is still processed and manufactured under super-temperature or high-temperature conditions, but the LNG equipment manufactured under these conditions does not match the working environment, resulting in short service life and rapid failure of these equipment

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 temperature processing method and ultralow temperature processing device for liquefied natural gas (LNG) equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The specific content of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0024] A device for ultra-low temperature processing of liquefied natural gas, the structure of which is shown in Figure 1:. Composed of LNG storage tank 1, vaporizer 2, buffer storage tank 3, natural gas engine 4, transmission device 5, vacuum pump 6, sealed box 7, processing unit 8, insulation pipeline 15, shut-off valve a9, shut-off valve b10, shut-off valve c11, cut-off valve d12, connection switch e13, connection switch f14, pressure gauge 16 and safety valve 17. The buffer storage tank 3 is installed between the carburetor 2 and the natural gas engine 4, the processing unit 8 is in the sealed box 7, one end of the transmission device 5 is connected to the natural gas engine 4, and the other end is connected to the processing unit 8 One end of the vacuum pump 6 is connected to the transmission 5, and one end is connected to the sealed bo...

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 for conducting low temperature processing by utilizing liquefied natural gas (LNG), that is, low temperature gaseous natural gas produced during vaporization of the LNG is utilized to cool work pieces to be processed under an air isolated condition, and the gaseous natural gas already absorbing heat is used as fuel of a natural gas engine, so that dynamic of low temperature processing can be directly provided. According to the method, the LNG absorbing energy during vaporization is fully utilized to provide an ultralow temperature processing environment, and the gaseous natural gas of the LNG is directly used as a transmission medium, so that cooling media are avoided from being lost and the method has the advantages of energy conservation and environmental protection; and meanwhile, the processing and manufacturing environment and the working environment of LNG equipment are consistent, thereby facilitating the stability of the low processing temperature. A device implementing the method comprises an LNG storage tank, a vaporizer, a buffer storage tank, the natural gas engine, a transmission device, a vacuum pump, a sealing box body, a processing unit, a thermal insulating pipeline, stop valves, connecting switches, a pressure gauge and a safety valve.

Description

technical field [0001] The invention relates to the field of special processing, specifically a method and device for ultra-low temperature processing, which is suitable for processing and manufacturing liquefied natural gas equipment in an ultra-low temperature environment. The content of this patent can also be extended to the field of low-temperature processing of other cooling medium equipment. Background technique [0002] Cryogenic processing technology is a cutting process that utilizes the special properties of materials at low temperature (including ultra-low temperature) for mechanical processing. Experiments have proved that low temperature processing can reduce cutting temperature, reduce cutting force, reduce plastic deformation of workpiece, reduce tool wear and improve tool durability. Therefore, it is often used to process some difficult-to-machine materials, such as stainless steel, titanium alloy, hardened steel, high manganese steel, etc. [0003] Traditi...

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
Patent Type & Authority Patents(China)
IPC IPC(8): B23Q11/10
Inventor 鲁金忠罗密陈珑彦殷劲松张磊齐晗王志龙韩彬
Owner JIANGSU UNIV
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