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Sample suction nozzle device for viscometer

A viscometer, an integrated technology, applied in measuring devices, flow characteristics, instruments, etc., can solve the problems of fragile glass, broken glass, scrapped straight tube viscometers, etc., to achieve the effect of convenient experiment and field work, and improved sealing effect.

Inactive Publication Date: 2013-04-10
SHANGHAI GASOLINEEUM & CHEM EQUIP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, since most of the viscometers are made of 17# hard glass, the fixation of the straight tube viscometer has become a problem
Because at least one of the two ends of the straight tube viscometer needs to be tightly fixed in the constant temperature bath, but because the glass is fragile, it cannot be squeezed strongly, so the straight tube viscometer can only be fixed by the O-ring, so most The straight tube viscometer will leak from the base of the constant temperature bath after a long time of use, and it is quite inconvenient to disassemble and replace
In addition, the exposed glass of the straight tube viscometer is easily broken by impact during the experiment, which eventually leads to the scrapping of the whole straight tube viscometer and needs to be replaced.

Method used

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  • Sample suction nozzle device for viscometer
  • Sample suction nozzle device for viscometer
  • Sample suction nozzle device for viscometer

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Embodiment Construction

[0019] The following combination Figure 1 ~ Figure 3 , a preferred embodiment of the present invention is described in detail.

[0020] The suction nozzle device of the viscometer of the present invention is made of metal material, and it is integrated with one end of the straight tube viscometer made of glass by welding, and the metal suction nozzle device is tightly installed in the constant temperature bath base to complete the fixation of the straight tube viscometer.

[0021] The metal suction nozzle device is made of copper material, and the copper content in the copper material is greater than 99.7%, so the total impurity content is less than 0.3%. Further, the impurities in the copper material include oxygen, phosphorus and arsenic, because the content of these impurities will affect the performance of copper, which will cause the suction nozzle device to fail to weld during the welding process with the glass viscometer , or the color is yellowish during welding, in...

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Abstract

The invention discloses a sample suction nozzle device for a viscometer. The sample suction nozzle device is made of a metal material, and is integratedly connected with one end of a straight pipe viscometer made of glass through welding; the metal sample suction nozzle device is closely arranged on a thermostatic bath base; and the sample suction nozzle device contains a straight pipe fixing section and a welding section which are integratedly molded. The sample suction nozzle device for the viscometer can meet the requirement that the leakage is avoided when thermostatic bath works for a long time, has certain pressure resistance and impact resistance, and can protect the viscometer made of the glass from being damaged.

Description

technical field [0001] The invention relates to a sampling nozzle device of a viscometer, which is suitable for measuring the kinematic viscosity of liquid petroleum products of automatic instruments. Background technique [0002] Glass viscometer is an important medium for kinematic viscosity measurement of petroleum products. Commonly used viscometers include Ubbelohde, Pinnock, Finn, etc., and are basically U-bend viscometers, and the openings of the viscometers all face one direction. The various viscometers mentioned above are easy to accumulate liquid in the elbow during the cleaning process of automatic measurement, and it is not easy to blow dry. In order to solve such problems, the most suitable viscometer structure is a straight tube, that is to say, the opening of the viscometer is on both sides. [0003] At present, there are many non-standard straight tube viscometers appearing on the market one after another. Since their openings are at both ends, they can be...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N35/10G01N11/00
Inventor 袁缘罗德星
Owner SHANGHAI GASOLINEEUM & CHEM EQUIP
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