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

Heating device used for pipe orifice preheating

A heating device and pipeline technology, which is applied in the field of welding and pipe nozzle preheating, can solve the problems of construction environment influence, uneven temperature, large heat loss, etc., and achieve safe and reliable use, improve weld quality, and fast heating speed Effect

Inactive Publication Date: 2019-09-17
BEIJING ZHONGKUN JIADA TECH
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has the following disadvantages: 1. The temperature is not uniform, and the welding cannot meet the technical requirements
2. Affected by the construction environment, the heat loss is large, and multiple baking is required to realize the welding of the nozzle
3. Serious pollution at the construction site

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
  • Heating device used for pipe orifice preheating

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0009] A heating device for preheating the nozzle of a pipeline, including installing the induction coil 1 on the heat insulation material 4, potting it in a flexible shell 5, wrapping it along the circumference of the pipeline, and connecting the sb variable frequency power supply 2 and the temperature sensor 3 After being installed in the middle of the induction coil, it is connected with the temperature control device 6 and then connected with the sb variable frequency power supply. The principle of the present invention is to output the intermediate frequency electricity to the induction coil 1 through the sb variable frequency power supply 2, and the intermediate frequency electricity forms an eddy current on the surface of the pipe body 4 through the induction coil 1 to realize heating. The temperature control device 6 controls the output of the sb variable frequency power supply according to the set temperature required for nozzle preheating and the real-time temperature...

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

A heating device used for pipe orifice preheating is mainly used for preheating a pipe orifice before pipeline welding construction, and mainly comprises an induction coil, a sb frequency conversion power source, a temperature sensor, a thermal insulation material, a flexible shell and a temperature control device. After being mounted on the thermal insulation material, the induction coil is encapsulated in the flexible shell, then after circumferential wrapping is carried out along a pipeline, the sb frequency conversion power source is turned on, and after intermediate frequency electricity is output into the induction coil through the sb frequency conversion power source via power frequency electricity, vortexes are formed in a pipeline body to achieve heating. The temperature control device controls output of the sb frequency conversion power source according to the set temperature required by pipe orifice preheating and the real-time temperature measured by the temperature sensor. The thermal insulation material achieves the function of thermal insulation on the induction coil. The heating device has the advantages of being reasonable in structure, safe, reliable, convenient to use and free of disturbance of outside temperature.

Description

technical field [0001] The invention relates to a heating device for preheating the nozzle of a pipeline, and relates to the fields of preheating and welding of the nozzle of a pipeline. Background technique [0002] In the welding construction process of the existing pipe nozzle, the pipe nozzle needs to be preheated first, and the main method is to use methane, acetylene and other combustible gases to bake the pipe nozzle to achieve the purpose of heating. This method has the following disadvantages: 1. The temperature is not uniform, and the welding cannot meet the technical requirements. 2. Affected by the construction environment, the heat loss is large, and multiple baking is required to realize the welding of the nozzle. 3. The construction site is seriously polluted. Contents of the invention [0003] The purpose of the present invention is to overcome the disadvantages of the above-mentioned prior art, and provide a heating device capable of making the nozzle of...

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 Applications(China)
IPC IPC(8): B29C35/08B29C35/10B29C65/00B29L23/00
CPCB29C35/0805B29C35/10B29C66/0242B29L2023/00B29C2035/0816
Inventor 刘忠诚樊志红
Owner BEIJING ZHONGKUN JIADA TECH
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