CN104597072A - Boiling point testing instrument - Google Patents
Boiling point testing instrument Download PDFInfo
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- CN104597072A CN104597072A CN201510026584.4A CN201510026584A CN104597072A CN 104597072 A CN104597072 A CN 104597072A CN 201510026584 A CN201510026584 A CN 201510026584A CN 104597072 A CN104597072 A CN 104597072A
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- flask
- condenser
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- pipe
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Abstract
The invention discloses an instrument for testing the boiling point of solution. The boiling point testing instrument comprises a flask, a thermometer arranged in the flask, a fractional distillation branch pipe used for communicating the straight port of the flask and the upstream of a condenser pipe in a condenser, a capillary backflow branch pipe used for communicating the flask and the upstream of the condenser pipe in the condenser, and an electric heater arranged in the flask, wherein a hollow U-shaped or circular ring shaped insulation tube is fixedly arranged at the bottom of the flask, and the electric heater is arranged in the insulation tube. The boiling point testing instrument can overcome the disadvantage that tested liquid is directly contacted with the electric heater radically.
Description
Technical field
The present invention relates to a kind of instrument, the present invention is exactly a kind of instrument for measuring solution boiling point, particularly a kind of instrument for measuring solution boiling point for laboratory or place to operate schools.
Background technology
Existing ebulliometer as " college chemical experiment " one book Basic Chemistry Experiment II shown in, see publishing house of Lanzhou University in August, 2004 first published P55-59.It comprises: flask, is arranged at the thermometer in flask, is communicated with the fractionation arm of the condenser pipe upstream in the straight mouth of flask and condenser, is communicated with the arm that backflows of the capillary of condenser pipe upstream in flask and condenser, and is arranged at the electric heating device in flask.Existing this ebulliometer, owing to being directly be arranged in flask by heating, is therefore absolutely unsafe in experimentation, particularly when boiling point test liquid used be mostly for inflammable and explosive organic liquid time, make this problem more outstanding.In addition, backflowing between arm with condenser pipe of this instrument is that plug by a ground is connected, need to be extracted when taking out condensed liquid, in the test activity of student, the as easy as rolling off a log effect because of hot liquid or gas meets accident, and this device is also extremely inconvenient in use in addition.
Chinese invention patent application 200610077563.6 discloses a kind of ebulliometer through improving, this instrument basic structure is identical with prior art, comprising with the flask lid of thermometer, packing washer and the liquid fractionation pipe that backflows with piston is be connected by miniature ebulliometer, and flask lid one side has slot.Due to this technology and prior art be substantially identical and, therefore in use there is dangerous and inconvenient deficiency in this device too.
Summary of the invention
The invention provides a kind of ebulliometer overcoming prior art deficiency.
Boiling-point apparatus of the present invention, comprise equally: flask, be arranged at the thermometer in flask, be communicated with the fractionation arm of condenser pipe upstream in the straight mouth of flask and condenser, be communicated with the arm that backflows of the capillary of condenser pipe upstream in flask and condenser, and the electric heating device be arranged in flask, but the bottle bottom of flask of the present invention is fixedly installed the U-shaped of hollow or annular insulation tube, in the pipe of insulation tube, be provided with electrothermal device.
In an embodiment of the present invention, the cold doubtful pipe in the condenser of boiling-point apparatus is serpentine condenser.Condenser can be made like this to have higher work efficiency.
Further, the junction of boiling-point apparatus of the present invention condenser pipe upstream in backflow arm and the condenser of capillary is provided with a funnel, so that condensed liquid enters to obtain the backflowing in arm of little progress capillary.
Further, in the arm that backflows of boiling-point apparatus capillary of the present invention, fractionation arm and condenser, the junction of condenser pipe upstream is connected with one and is with valvular projecting tube, and this is that described valve preferably adopts plug valve.Condensed fluid physical efficiency wherein can be made to take out easily by opening this valve.
Further, the junction spatial volume of the arm 3 that backflows of the capillary of boiling-point apparatus of the present invention, fractionation arm and projecting tube is 0.5 milliliter.
In the present invention, electrothermal device is arranged in the tube made with insulating material of drag, specifically manufacturing in process, directly can prepare glass tube, so just fundamentally completely cut off the deficiency that tested liquid directly contacts with heating, also just fundamentally avoiding tested liquid directly contacts issuable various problem with heating.
The present invention is owing to using snakelike freeze pipe, and efficiency is higher in an experiment to make it, and the used time is shorter.
Condensed liquid in use can directly be taken out by Open valve by device of the present invention, and will pull up ground no longer as in the prior art, therefore substantially no longer there is the problem that personal injury occurs.
Accompanying drawing explanation
Accompanying drawing 1 is the schematic diagram of apparatus of the present invention, wherein 1 is flask, and 2 for being arranged at its inside of drag for arranging the U-shaped pipe of electrothermal device, the arm that backflows of 3 capillary, 4 projecting tubes, 5 valves, 6 funnels, the cooling liquid inlet of 7 condensers, 8 condensers, the cooling liquid outlet of 9 condensers, 11 fractionation arms, in the straight mouth of 12 flasks.
Embodiment
The present invention is explained orally below in conjunction with accompanying drawing.
As seen from the figure, the present invention by flask 1, condenser 8, be communicated with flask straight mouth 12 and condenser pipe 10 upstream in condenser 7 fractionation arm 11, be communicated with bottom flask 1 and form with the arm 3 that backflows of the capillary of condenser pipe 10 upstream in condenser 7.Condenser pipe 9 in condenser in the present invention is serpentine condenser.From (in the schematic diagram that namely accompanying drawing provides) embodiments of the invention, in its fractionation arm 11, backflow arm 3 and condenser 7, the junction of condenser pipe 10 upstream is in same position, and: the porch of the arm 3 that backflows is provided with a funnel 6; There are a projecting tube 4 and condenser pipe 10 upstream conducting in fractionation arm 11, backflow arm 3 and condenser 7 in addition; Projecting tube 4 is provided with a plug valve 5.The bottom of flask 1 of the present invention is fixedly installed the pipe 2 of a U-shaped, and the inside of pipe 2 is used for arranging electrothermal device, and the tube of this U-shaped also makes annular certainly, and in specifically manufacturing, useable glass pipe is directly made.Obviously, this design of the present invention make the medium in flask can completely and electrothermal device keep apart.In addition, in the flask of ebulliometer of the present invention, be also provided with thermometer, and the knuckle place of the arm 3 that backflows should be a circular arc, but due to drawing, these contents do not show in the accompanying drawings.
When the present invention uses, test(ing) liquid is added in flask 1, boiling is heated to again with electric heating device, the steam of gasification enters in freeze pipe 10 by fractionation arm 11, condensable under the effect of condenser liquid coolant, and the junction of condenser pipe 10 upstream and projecting tube 4 is assembled in fractionation arm 11, the arm 3 that backflows, condenser 7, and be again back in flask 1 by the arm 3 that backflows that funnel enters capillary.When needs taking-up condensed fluid is tested, can open plug valve 5, such liquid can flow out easily from pipe 4.
Claims (5)
1. boiling-point apparatus, comprise: flask (1), be arranged at the thermometer in flask, be communicated with the arm that backflows (3) of the capillary of condenser pipe (10) upstream in flask (1) and condenser (7), and the electric heating device be arranged in flask (1), it is characterized in that the bottle bottom of flask (1) is fixedly installed the U-shaped of hollow or annular insulation tube (2), in the pipe of insulation tube (2), be provided with electrothermal device.
2. boiling-point apparatus according to claim 1, is characterized in that the cold doubtful pipe (10) in condenser (7) is serpentine condenser.
3. boiling-point apparatus according to claim 1 and 2, is characterized in that the arm that backflows (3) of capillary is provided with a funnel (6) with the junction of condenser pipe (10) upstream in condenser (7).
4. boiling-point apparatus according to claim 3, is characterized in that the arm that backflows (3) of capillary, fractionation arm (10) are connected with a projecting tube with valve (5) (4) with the junction of condenser pipe (10) upstream in condenser (7).
5. boiling-point apparatus according to claim 4, is characterized in that the junction spatial volume of the arm that backflows (3) of capillary, fractionation arm (10) and projecting tube (4) is 0.5 milliliter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510026584.4A CN104597072A (en) | 2015-01-20 | 2015-01-20 | Boiling point testing instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510026584.4A CN104597072A (en) | 2015-01-20 | 2015-01-20 | Boiling point testing instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104597072A true CN104597072A (en) | 2015-05-06 |
Family
ID=53122993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510026584.4A Pending CN104597072A (en) | 2015-01-20 | 2015-01-20 | Boiling point testing instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104597072A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4059006A (en) * | 1975-12-22 | 1977-11-22 | Showa Industries Co., Ltd. | Liquid quality-evaluating apparatus |
| JPH039253A (en) * | 1989-06-05 | 1991-01-17 | Kigunasu Sekiyu Seisei Kk | Boiling point meter |
| CN1869671A (en) * | 2006-04-26 | 2006-11-29 | 范志鹏 | Miniature semi-automatic portable quick boiling point investigating instrument |
| CN201177607Y (en) * | 2007-07-31 | 2009-01-07 | 顾浩 | Ebulliometer |
| CN202018431U (en) * | 2011-04-05 | 2011-10-26 | 湖州师范学院 | Hypsometer for double fluid systems |
| CN202694649U (en) * | 2012-05-21 | 2013-01-23 | 石家庄学院 | Liquid ebulliometer |
| CN103803508A (en) * | 2012-11-15 | 2014-05-21 | 宜昌瑞特精细化工有限公司 | Natural gas and electric heating compatible sulfuric acid distillation device |
-
2015
- 2015-01-20 CN CN201510026584.4A patent/CN104597072A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4059006A (en) * | 1975-12-22 | 1977-11-22 | Showa Industries Co., Ltd. | Liquid quality-evaluating apparatus |
| JPH039253A (en) * | 1989-06-05 | 1991-01-17 | Kigunasu Sekiyu Seisei Kk | Boiling point meter |
| CN1869671A (en) * | 2006-04-26 | 2006-11-29 | 范志鹏 | Miniature semi-automatic portable quick boiling point investigating instrument |
| CN201177607Y (en) * | 2007-07-31 | 2009-01-07 | 顾浩 | Ebulliometer |
| CN202018431U (en) * | 2011-04-05 | 2011-10-26 | 湖州师范学院 | Hypsometer for double fluid systems |
| CN202694649U (en) * | 2012-05-21 | 2013-01-23 | 石家庄学院 | Liquid ebulliometer |
| CN103803508A (en) * | 2012-11-15 | 2014-05-21 | 宜昌瑞特精细化工有限公司 | Natural gas and electric heating compatible sulfuric acid distillation device |
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20150506 |