Method and device for adopting standard temperature measurement element to measure small-pipe-diameter temperatures
A technology of temperature measuring element and small pipe diameter, which is applied in the direction of measuring device, electric device, thermometer with electric/magnetic element directly sensitive to heat, etc. The effect of equipment level, reducing installation cost and improving installation efficiency
Inactive Publication Date: 2014-06-04
GUIYANG AL-MG DESIGN & RES INST
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Problems solved by technology
In order to make the measurement of small pipe diameters possible using standardized measuring elements on the market, the current practice is to weld an expansion tube on the small pipe, and then weld a section of larger diameter connector on the expansion tube, and then use the standard measurement The temperature element is installed on the connection head for measurement, which requires a large amount of construction and requires high construction skills
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[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings, but not as any limitation to the present invention.
[0018] The method of measuring the temperature of a small diameter pipe using a standard temperature measuring element, such as figure 1 shown. The method is to process an adapter compatible with the standard temperature measuring element, fix the standard temperature measuring element on the adapter, and then connect the adapter in series between two small tubes, the connection between the adapter and the small tube The method adopts the flange connection method; when the fluid medium in the small tube flows through the adapter, the temperature passing through the small tube is measured by the standard temperature measuring element fixed on the adapter. The standard temperature measuring element adopts a metal-encapsulated thermocouple or thermal resistance with an insertion depth of 100mm. The adapt...
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The invention discloses a method and device for adopting a standard temperature measurement element to measure small-pipe-diameter temperatures. The method is as follows: machining an adapting part which is adaptive to the standard temperature measurement element and fixing the standard temperature measurement element on the adapting part and then connecting the adapting part sequentially between two small pipes, wherein the adapting part is connected with the small pipes through a flange connection method; and when a fluid medium in the small pipes flows through the adapting part, obtaining the temperatures of the small pipes through the standard temperature measurement element fixed on the adapting part. Through installing the standard temperature measurement element on the adapting part, the accuracy of temperature measurement is improved significantly. The adapting part adopts a T-shaped three-way structure, the two ends of a T-shaped three-way straight pipe is machined such that the two ends can be connected in a flange connection method which is capable of rapid connection so that installation is convenient, air tightness is great and installation efficiency is improved significantly. The method and device for adopting the standard temperature measurement element to measure the small-pipe-diameter temperatures adopt the standard temperature measurement element so that purchase is convenient, price is low and installation cost can be reduced and the equipped level of a nonferrous metallurgy detection instrument is improved.
Description
technical field [0001] The invention relates to a method and a device for measuring the temperature of a small pipe diameter by using a standard temperature measuring element, and belongs to the technical field of temperature measurement of a fluid medium in a small pipe with a diameter of less than 50 mm. Background technique [0002] In the non-ferrous metallurgical production process, the temperature of the fluid medium in small pipe diameters (diameter less than 50mm) in many working conditions needs to be measured and controlled. Due to the current product standardization of temperature measuring element manufacturers, the insertion depth of standard temperature measuring elements is generally at least 100mm, and when the pipe diameter of the measured medium temperature is less than 50mm in diameter, there is no suitable temperature measuring pipe with a pipe diameter of less than 50mm in the market. If the components are specially customized by the manufacturer, the pr...
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IPC IPC(8): G01K7/04G01K7/16
Inventor 王春珍张力
Owner GUIYANG AL-MG DESIGN & RES INST