CN104359935A - Melting point detector - Google Patents
Melting point detector Download PDFInfo
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- CN104359935A CN104359935A CN201410678139.1A CN201410678139A CN104359935A CN 104359935 A CN104359935 A CN 104359935A CN 201410678139 A CN201410678139 A CN 201410678139A CN 104359935 A CN104359935 A CN 104359935A
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- melting point
- glass tube
- heating rod
- thermometer
- point detector
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Abstract
The invention provides a melting point detector which can be operated safely and conveniently and the measurement data is accurate. The melting point detector comprises a glass tube, a thermometer, a melting point pipe, a thermoelectric couple, a heating rod and a temperature control instrument, wherein the glass tube is provided with an opening end and a plug corresponding to the opening end for containing heat-transfer mediums; the thermometer is arranged on the plug and is inserted into the glass tube for reading the melting point of a sample to be detected; one end of the melting point pipe is closed, and the other end of the melting point pipe is opened, the melting point pipe is connected with the thermometer in an integrated manner for containing the sample to be detected; the thermoelectric couple is inserted into the glass tube and is used for directly measuring the temperature of the heat-transfer medium; the heating rod is inserted into the glass tube and is used for heating the heat-transfer mediums; and the temperature control instrument is both connected with the thermoelectric couple and a signal line of the heating rod, and the heating rod is controlled to be turned on and off to control the temperature of the heat-transfer medium.
Description
Technical field
The present invention relates to melting point apparatus, particularly a kind of melting point detector.
Background technology
Fusing point be at one atm solid chemical compound solid phase and liquid equilibrium time temperature, the parameter that the fusing point of solid chemical compound is chemistry, biology, environmental science etc. often measure.The melting point apparatus of current solid chemical compound and method are divided into micro melting point to measure and capillary tube technique, micro melting point apparatus price; Capillary tube technique utilizes spirit lamp to heat, and there is flame uneven, has impact, and have certain risk to the fusing point accuracy measured.
Summary of the invention
The object of the invention is to provide a kind of melting point detector, handling safety, easy to operate and determination data is accurate.
To achieve these goals, the present invention adopts technical scheme as follows:
A kind of melting point detector, comprising:
Glass tube, has openend, and has the stopper corresponding to openend, for splendid attire heat transfer medium;
Thermometer, is arranged on stopper, and inserts in glass tube, for reading the fusing point of testing sample;
Melting point tube, one end is closed, open at one end, and connects as one with thermometer, for splendid attire testing sample;
Thermopair, inserts in glass tube, for directly measuring heat-transfer medium temperature;
Heating rod, inserts in glass tube, for heating heat transfer medium; With
Temperature controller, connects the signal wire of thermopair and heating rod simultaneously, carrys out Heat Transfer Control medium temperature by controlling heating rod break-make.
Further, glass tube bottom is the hollow-core construction of " returning " font, and glass tube top is for being positioned at the vertical portion of the hollow-core construction upper end of " going back to " font.
Further, be spherical structure in the middle of vertical portion.
Further, the hollow-core construction of " returning " font is that double-deck heatproof glass is made.
Beneficial effect of the present invention:
Thermopair, heating rod and temperature controller coordinate, and heat, can not produce danger in a fusing point environs; Heating rod is utilized to heat, without spirit lamp heating, handling safety and easy to operate; Glass tube some be double-layer glass structure, hear rate is few, and determination data is accurate.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure 1, thermometer, 2, stopper, 3, vertical portion, 4, melting point tube, 5, spherical structure, 6, thermopair, 7, the hollow-core construction of " returning " font, 8, heating rod, 9, temperature controller.
Embodiment
Better understand the present invention for the ease of those skilled in the art, be described in further details below in conjunction with the drawings and specific embodiments to the present invention, following is only exemplary do not limit protection scope of the present invention.
A kind of melting point detector, comprises glass tube, thermometer 1, melting point tube 4, thermopair 6 and temperature controller 8,
Wherein glass tube has openend, and has the stopper 2 corresponding to openend, for splendid attire heat transfer medium; Thermometer 1 is arranged on stopper 2, and inserts in glass tube, for reading the fusing point of testing sample; Melting point tube 4 one end is closed, open at one end, and connects as one with thermometer 1, for splendid attire testing sample; Thermopair 6 inserts in glass tube, for directly measuring heat-transfer medium temperature; Heating rod 8 inserts in glass tube, for heating heat transfer medium; Temperature controller 9 connects the signal wire of thermopair 6 and heating rod 8 simultaneously, carrys out Heat Transfer Control medium temperature by controlling heating rod 8 break-make.
In the present embodiment, glass tube bottom is the hollow-core construction 7 of " returning " font, and glass tube top, for being positioned at the vertical portion 2 of hollow-core construction 7 upper end of " going back to " font, is spherical structure in the middle of vertical portion 2.
In the present embodiment, the hollow-core construction of " returning " font is that double-deck heatproof glass is made, and has the effect of insulation, can reduce hear rate.
Using method of the present invention: put into testing sample powder in melting point tube 4, heat transfer medium is put in glass tube, melting point tube 4 stretches into the heat transfer medium in glass tube after being connected with thermometer 1, thermopair 6, thermometer 1 and temperature controller 8 connect, after setting heating-up temperature, start temperature controller 8, thermopair 6 passes to temperature controller 8 after measuring heat-transfer medium temperature, temperature controller 8 sends signal control heating break-make to heating rod 8 and carrys out Heat Transfer Control medium temperature, when sample from solid-state transfer liquid state to time, to be read to obtain the fusing point of testing sample by thermometer 1.
Above only describes ultimate principle of the present invention and preferred implementation, those skilled in the art can make many changes and improvements according to foregoing description, and these changes and improvements should belong to protection scope of the present invention.
Claims (4)
1. a melting point detector, is characterized in that, comprises
Glass tube, has openend, and has the stopper corresponding to openend, for splendid attire heat transfer medium;
Thermometer, is arranged on stopper, and inserts in glass tube, for reading the fusing point of testing sample;
Melting point tube, one end is closed, open at one end, and connects as one with thermometer, for splendid attire testing sample;
Thermopair, inserts in glass tube, for directly measuring heat-transfer medium temperature;
Heating rod, inserts in glass tube, for heating heat transfer medium; With
Temperature controller, connects the signal wire of thermopair and heating rod simultaneously, carrys out Heat Transfer Control medium temperature by controlling heating rod break-make.
2. melting point detector according to claim 1, it is characterized in that: glass tube bottom is the hollow-core construction of " returning " font, glass tube top is for being positioned at the vertical portion of the hollow-core construction upper end of " going back to " font.
3. melting point detector according to claim 2, is characterized in that: be spherical structure in the middle of vertical portion.
4. melting point detector according to claim 2, is characterized in that: the hollow-core construction of " returning " font is that double-deck heatproof glass is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410678139.1A CN104359935A (en) | 2014-11-24 | 2014-11-24 | Melting point detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410678139.1A CN104359935A (en) | 2014-11-24 | 2014-11-24 | Melting point detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104359935A true CN104359935A (en) | 2015-02-18 |
Family
ID=52527216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410678139.1A Pending CN104359935A (en) | 2014-11-24 | 2014-11-24 | Melting point detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104359935A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106383137A (en) * | 2016-11-24 | 2017-02-08 | 苏州逸风塑胶电子有限公司 | Temperature resistance tester of plastic material |
| CN106706699A (en) * | 2017-03-01 | 2017-05-24 | 中华人民共和国日照出入境检验检疫局 | Novel melting point determination device |
| CN106853354A (en) * | 2017-02-27 | 2017-06-16 | 湖州市吴兴实验中学 | Melting experiment of crystal device |
| CN111333311A (en) * | 2018-12-18 | 2020-06-26 | 肖特股份有限公司 | Furnace, in particular cooling furnace |
-
2014
- 2014-11-24 CN CN201410678139.1A patent/CN104359935A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106383137A (en) * | 2016-11-24 | 2017-02-08 | 苏州逸风塑胶电子有限公司 | Temperature resistance tester of plastic material |
| CN106853354A (en) * | 2017-02-27 | 2017-06-16 | 湖州市吴兴实验中学 | Melting experiment of crystal device |
| CN106706699A (en) * | 2017-03-01 | 2017-05-24 | 中华人民共和国日照出入境检验检疫局 | Novel melting point determination device |
| CN106706699B (en) * | 2017-03-01 | 2023-07-14 | 中华人民共和国日照出入境检验检疫局 | Novel melting point measuring device |
| CN111333311A (en) * | 2018-12-18 | 2020-06-26 | 肖特股份有限公司 | Furnace, in particular cooling furnace |
| US11591250B2 (en) | 2018-12-18 | 2023-02-28 | Schott Ag | Furnace for relieving stress from glass products |
| CN111333311B (en) * | 2018-12-18 | 2023-09-05 | 肖特股份有限公司 | Furnace, in particular cooling furnace |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150218 |
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| WD01 | Invention patent application deemed withdrawn after publication |