Constant temperature furnace for rotational viscometer

A technology of constant temperature furnace and viscometer, applied in the field of constant temperature furnace, can solve the problems of large thermal inertia, poor temperature control effect, unreasonable design of constant temperature furnace, etc., and achieves good heating uniformity, improved accuracy, and small thermal inertia. Effect

Inactive Publication Date: 2012-08-15
SHANGHAI FANGRUI INSTR
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0003] In the process of using a rotational viscometer to measure liquids, the main reason why the temperature of the test liquid cannot be accurately controlled is that the design of the constant temperature furnace supporting the rotational viscometer is not reasonable: on the one hand, the constant temperature furnaces all adopt general-purpose temperature control The instrument cannot

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  • Constant temperature furnace for rotational viscometer
  • Constant temperature furnace for rotational viscometer

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Embodiment Construction

[0015] see figure 1 , in order to better understand the technical solution of the present invention, the following specific embodiments are described in detail in conjunction with the accompanying drawings:

[0016] see figure 1 , in the present embodiment, a constant temperature furnace for a rotary viscometer of the present invention includes a furnace body part and a control part, wherein the furnace body part includes a furnace body 10, a protective cover 2, a heat shield 7, and a terminal block 8 , temperature sensor 9, four electric heating rods 3, base 4, base plate 5 and leveling foot 6. The control section includes a controller.

[0017] A hearth is arranged at the center of the furnace body 10, and the hearth is used to place the holding cylinder 1 for containing the test liquid on the rotational viscometer. The storage container 1 can be conveniently put into or taken out from the furnace.

[0018] A temperature sensor 9 and four electric heating rods 3 are inse...

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Abstract

The invention discloses a constant temperature furnace for a rotational viscometer in the field of experimental test instrument. The constant temperature furnace comprises a furnace body, a protective cover, a thermal insulation board, a wiring board, a temperature sensor, a controller and a plurality of electrical bars, wherein the electrical bars and the temperature sensor are inserted in the furnace body from the bottom of the furnace body; a hearth is arranged at the radial center of the furnace body, the protective cover surrounds an outer side wall of the furnace body, the thermal insulation board and the wiring board are arranged at the lower side of the furnace body, the wiring board is respectively connected with each electrical bar, and the controller is respectively connected with the wiring board and the temperature sensor. The constant temperature furnace has the following beneficial effects of low thermal inertia and good heating uniformity, and capabilities of quickly responding to a control instruction sent by the controller, accurately controlling the temperature of the tested liquid and improving the accuracy of a viscosity test.

Description

technical field [0001] The invention relates to a constant temperature furnace for a rotary viscometer in the field of experimental testing instruments. Background technique [0002] Rotational viscometer is an experimental instrument widely used in chemical industry. For many liquids, especially polymer melts or polymer solutions, the viscosity of the liquid is highly sensitive to temperature. Therefore, in the process of testing the viscosity of the liquid with a rotational viscometer, the precise control of the temperature of the test liquid It is very necessary. If the temperature cannot be precisely controlled, it will inevitably affect the accuracy of the viscosity test, and then affect the determination of other physical quantities of the test liquid, such as the molecular weight of the polymer and its distribution. [0003] In the process of using a rotational viscometer to measure liquids, the main reason why the temperature of the test liquid cannot be accurately...

Claims

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Application Information

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IPC IPC(8): F27B17/02G01N11/00
Inventor 归剑刚高安民陈宇田孙文吴栋
Owner SHANGHAI FANGRUI INSTR
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