Pyrolysis furnace COT thermocouple anti-degrading and anti-coking sleeve pipe

An anti-scouring and thermocouple technology, applied in the direction of thermometers, measuring heat, and using electrical devices that are directly sensitive to heat, electric/magnetic components, etc., can solve problems such as inability to guarantee fluid media, easily damaged instruments, and leaking connections. , to achieve good temperature measurement sensitivity and good high temperature resistance

Inactive Publication Date: 2009-07-29
YUEQING CITY LONDER ELECTRONICS & INSTR
View PDF2 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This technical solution directly connects the junction box to the process connection flange through a protective tube with a slipknot, but the thermocouple with such a structure cannot guarantee that the fluid medium will leak to the connection end at the junction box after long-term use
In a

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
  • Pyrolysis furnace COT thermocouple anti-degrading and anti-coking sleeve pipe
  • Pyrolysis furnace COT thermocouple anti-degrading and anti-coking sleeve pipe
  • Pyrolysis furnace COT thermocouple anti-degrading and anti-coking sleeve pipe

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0030] The structure of the present invention will be further described below in conjunction with the accompanying drawings of the specification:

[0031] The invention proposes a cracking furnace COT thermocouple anti-scouring and anti-coking sleeve 1 (see figure 1 , figure 2 ), including the measuring end 3, the lower protection tube 4, the thermocouple 5 (preferably, the embodiment of the present invention uses an armored thermocouple), the upper protection tube 11 and the junction box 12, the temperature measuring end 3 and the lower end of the lower protection tube 4 Sealed welding, the upper end of the lower protection tube 4 is fixedly connected with the process connection flange 9; the cracking furnace COT thermocouple anti-scouring and anti-coking sleeve is fixed in the equipment connection pipe 1 through the process connection flange 9; the measuring end 3 An anti-scouring body 301 and a temperature measuring head 302 are provided. The anti-scouring body 301 protects t...

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 provides a COT thermocouple anti-scour and anti-coking sleeve used in a cracking furnace. The sleeve comprises a thermocouple, a terminal block, a lower protecting tube, a process connecting flange, an upper protecting tube and a measuring terminal, an internal leakage resistant device is arranged between the upper protecting tube and the process connecting flange, the measuring terminal is provided with a temperature measuring head and an anti-scour body having a prismatic inclined scour plane, the anti-scour body is arranged into a whole part with the temperature measuring head through connection, the temperature measuring head is connected with the back of the anti-scour body, a projection plane of the temperature measuring head which is perpendicular to the back of the anti-scour body is smaller than the back of the anti-scour body, the prismatic inclined scour plan of the anti-scour body is coated with multi-layer composite materials, a temperature measuring terminal is in seal welding with the lower protecting tube, and a protective layer is arranged at the welding position. The provided technical proposal has good temperature measurement sensitivity, and can achieve good effects of high temperature resistance, scour resistance, coking resistance, seismic resistance, internal leakage resistance and the like.

Description

technical field [0001] The invention relates to an instrument for measuring the outlet temperature of a cracking furnace radiation furnace tube. Background technique [0002] The temperature measurement at the radiation outlet of the pyrolysis furnace requires the thermocouple to be able to quickly respond to the potential and accurately measure the temperature, and the measurement end is required to be wear-resistant. The existing instrument manufacturing method is to increase the thickness of the casing to achieve wear resistance, but The thickening of the casing will cause the temperature of the thermocouple to lag and the sensitivity will be reduced. Therefore, increasing the thickness of the casing can only achieve the anti-scouring effect, but cannot achieve accurate temperature measurement, resulting in a large actual and measurement error. [0003] Patent No. 01254427.2 proposes a prismatic anti-scouring thermometer sleeve, the measuring end is provided with an anti-...

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): G01K7/02
Inventor 吴加特
Owner YUEQING CITY LONDER ELECTRONICS & INSTR
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