A heating body for a high-temperature thermocouple verification furnace
A thermocouple and verification furnace technology, which is applied in the field of high-temperature thermocouple verification or calibration, can solve the problems of inconvenient installation, temperature field index not reaching the thermocouple, ring heating body is easily damaged, etc., and achieve the effect of improving accuracy
Active Publication Date: 2017-06-30
BEIJING CHANGCHENG INST OF METROLOGY & MEASUREMENT AVIATION IND CORP OF CHINA
View PDF6 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, the radiation thermometer verification furnace has low requirements on the temperature field, so the temperature field indicators produced by the above two graphite heating elements cannot meet the requirements of thermocouple verification, and the design components of the two graphite heating elements are many, which is inconvenient to install.
In addition, the ring heating body is easily damaged due to its own thermal expansion
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0024] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0025] The heating body for the high-temperature thermocouple verification furnace in this embodiment is made of graphite with a purity higher than 99.99%; its structure is as follows figure 1 As shown, it includes: graphite heating tube 1, graphite buffer ring 2, graphite electrode sleeve 3 and copper electrode 4.
[0026] Both ends of the graphite heating tube 1 are respectively connected to a graphite buffer ring 2, 3 sets of 2 graphite electrode sleeves are respectively mounted on the graphite buffer ring 2, and 2 graphite electrode sleeves 3 are respectively installed on the red copper electrodes 4 on both sides.
[0027] The graphite heating tube 1 is an electric heating body, which provides a uniform and stable temperature field for the verification or calibration of high-temperature thermocouples. The graphite heating tube 1 is a hollow tube wi...
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
Login to View More Abstract
The invention relates to a heating body for a high-temperature thermocouple verification furnace and belongs to the field of verification or calibration of high-temperature thermocouples. The heating body adopts graphite with purity of above 99.99% as a material, and comprises a graphite heating pipe (1), graphite buffering rings (2), graphite electrode sleeves (3) and red copper electrodes (4). Two ends of the graphite heating pipe (1) are connected with the graphite buffering rings (2) respectively, two graphite electrode sleeves (3) are sleeved on the graphite buffering rings (2) respectively, and the two graphite electrode sleeves (3) are mounted on the red copper electrodes (4) on the two sides respectively. The heating body provided by the invention has the advantages that the graphite is taken as the material, the temperature of the graphite heating pipe can achieve 3000 DEG C, a stable and uniform temperature field is produced, and verification or calibration of a tungsten-rhenium thermocouple, an iridium-rhodium thermocouple, a platinum-rhodium thermocouple and other high-temperature thermocouples (1600 DEG C-3000 DEG C) is met; and meanwhile, the heating body can measure the temperature at the temperature measuring end of the high-temperature thermocouple through a standard photoelectric pyrometer, and improve the precision in verification or calibration of the high-temperature thermocouple.
Description
technical field [0001] The invention relates to a heating body for a high-temperature thermocouple verification furnace, which belongs to the field of high-temperature thermocouple verification or calibration. Background technique [0002] At present, the high-temperature thermocouple verification furnace is used for the verification or calibration of thermocouples, and the heating body is the key to the design of the entire thermocouple verification furnace. The heating body of the thermocouple verification furnace generally has resistance wire or silicon-molybdenum composite material. The resistance wire is generally wound on the ceramic tube in a winding manner. After the resistance wire is energized, the resistance wire generates heat to achieve the purpose of heating, and a uniform temperature field is formed in the middle of the ceramic tube. According to the different heating temperature of the heating wire material, the upper limit of the heating temperature of the ...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01K15/00
Inventor 杨新圆吕国义陈炜张贺王晓璐
Owner BEIJING CHANGCHENG INST OF METROLOGY & MEASUREMENT AVIATION IND CORP OF CHINA