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Annular heating test tube

A test tube and annular technology, applied in the field of annular heating test tubes, can solve the problems affecting the demonstration time and teaching progress, long heating time, etc., and achieve the effects of reasonable and novel structure design, accelerated absorption speed, and improved absorption speed.

Inactive Publication Date: 2016-09-14
JIANGYIN ZHENGZHONG SCI & EDUCATION EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The alcohol lamp is a single-point heating, which can only heat the bottom of the test tube, which makes the heating time too long, affecting the demonstration time and teaching progress

Method used

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  • Annular heating test tube

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Embodiment Construction

[0009] The technical characteristics of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0010] The invention relates to a ring-shaped heating test tube, which includes a test tube body, a sealing plug is arranged on the top of the test tube body, an exhaust pipe is arranged on the sealing plug, and a right-angle bend is arranged in the middle of the exhaust pipe; the test tube body includes a Cylindrical glass tube, the lower part of the glass tube is an arc-shaped bottom end, and the arc-shaped bottom end has a radian of 2.14; the outer end surface of the arc-shaped bottom end is covered with a metal wrapping sheet, and several parallel-arranged The metal heating sheet is an annular metal sheet; the distance between the metal heating sheets is 1 / 10 of the length of the glass tube, the height of the metal heating sheet is 1 / 8 of the length of the glass tube, and the thickness of the metal heating sh...

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PUM

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Abstract

The invention discloses an annular heating test tube. The test tube comprises a test tube body. The top end of the test tube body is provided with a sealing plug. An air exhaust pipe is arranged in the sealing plug. A rectangular bend is arranged in the center of the air exhaust pipe. The test tube body comprises a cylindrical glass tube. The lower part of the glass tube is an arc bottom. The radian of the arc bottom is 2.14. The external end surface of the arc bottom is covered by a metal wrapping sheet. The external surface of the glass tube is provided with metal heating sheets, which are cylindrically and spirally arranged on the external surface of the glass tube. The provided test tube can overcome the shortages of prior art, and moreover, the structural design is reasonable and novel.

Description

technical field [0001] The invention relates to an annular heating test tube, which belongs to the field of teaching equipment. Background technique [0002] Test tube, a commonly used instrument in chemical laboratories, is used as a reaction container for a small amount of reagents. It is used at room temperature or when heated (it should be preheated before heating, otherwise the test tube is easy to burst.). Test tubes are divided into ordinary test tubes, support test tubes, centrifuge test tubes and so on. In teaching demonstration experiments, under normal circumstances, alcohol lamps are used for heating. The alcohol lamp is a single-point heating, which can only heat the bottom of the test tube, which makes the heating time too long and affects the demonstration time and teaching progress. Contents of the invention [0003] Aiming at the deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a ring-shaped heating...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01L3/14B01L7/00
CPCB01L3/5082B01L7/00B01L2200/16
Inventor 张震球
Owner JIANGYIN ZHENGZHONG SCI & EDUCATION EQUIP