CN1869671A - Miniature semi-automatic portable quick boiling point investigating instrument - Google Patents
Miniature semi-automatic portable quick boiling point investigating instrument Download PDFInfo
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- CN1869671A CN1869671A CN 200610077563 CN200610077563A CN1869671A CN 1869671 A CN1869671 A CN 1869671A CN 200610077563 CN200610077563 CN 200610077563 CN 200610077563 A CN200610077563 A CN 200610077563A CN 1869671 A CN1869671 A CN 1869671A
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Abstract
The invention is a miniature, semiautomatic, convenient and fast boiling point determiner, comprising flask cover with thermometer, seal washer and reflux fractionated liquid tube, which are integrated through micro boiling point meter, where one side surface of the flask cover is made with rectangular hole so as to be able to conveniently read all scale values on double liquid system boiling point constant timing thermometer and remaining fractionated liquid in fractionated liquid groove can automatically and completely return into the flask. And it is a modern green chemical micro experimental boiling point determiner, having characters of novel structure, reliable technique, convenient to operate, low cost, saving trouble, saving time, saving energy and saving reagent.
Description
Instrument of the present invention belongs to the miniature modifying device that the Physical Chemistry Experiment biliquid is a phasor vapor liquid equilibrium boiling-point apparatus.Be particularly related to a kind of be applicable to the sampling of each liquid fractionation after, the residue liquid fractionation can be automatically fully in the flow back into flask, the boiling-point apparatus of the whole scale readings on the thermometer with can visually easily read biliquid and be boiling, vapor liquid equilibrium, temperature constant the time, and be applicable to the mensuration of the fractionation boiling point of the biliquid system about 10mL.
When the laboratory was done biliquid and is the phasor ebulliometry with common boiling-point apparatus, regular meeting saw three kinds of different difficult phenomenons.The one, troublesome poeration is time-consuming.After carrying out the liquid fractionation sampling for the different upper level biliquid system of a series of compositions that in same ebulliometer flask, are made into liquid feeding method step by step, for the composition that do not change former biliquid system constant, or do not influence the composition that the next stage biliquid is liquid fractionation sampling, ebulliometer must be taken out from the iron clamp of iron stand at every turn, ebulliometer is tilted, is inverted, the residue liquid fractionation is flow backwards from its groove to flash back in the bottle, it is unclean to flow backwards, also need the liquid fractionation that is detained with the pipette exhaustion, it is released flash back in the bottle again.14 grades of compositions of two series need repeat same operation 14 times, and time loss is in the inefficiency operation, and the phenomenon of carefully not smashing ebulliometer therebetween is unavoidable; The 2nd, be inserted with the rubber plug of thermometer, constant just in rubber plug the time when certain several close boiling point, because the experimenter does not observe the mercury slug scale reading, have in helpless, abandon it, have influence on the accurate drafting that gas-liquid is formed (x) boiling point (y) phasor; The 3rd, waste reagent solution, the energy and the time, it is 30mL, 35mL that two series composition solution of each experiment need to get biliquid respectively, except that reagent costliness, biliquid system measure greatly, and power consumption, consuming time when also causing heating fractionation.
Purpose of the present invention just is to solve an above-mentioned experiment difficult problem, for laboratory work person and student provide a kind of novel structure, technology reliable, easy to operate, with low cost, save trouble, save time, economize energy consumption, economize the convenient quick boiling point investigating instrument of miniature semi-automatic of reagent.
Technical scheme of the present invention is achieved in that the liquid fractionation pipe that backflows that this boiling-point apparatus comprises flask lid, the packing washer that has thermometer and has a ground piston is to fuse by miniature ebulliometer.Flask lid caping central authorities have the circular hole that just thermometer is vertically passed, be lined with packing washer in the caping, lid end crimping, the cup inwall has and is coated with the screw thread that crosses rubber, lid cylinder one side has slot, Kong Changcong packing washer lower edge is to covering place, crimping upper edge, the end, the wide thermometer external diameter that equals in hole; Packing washer central authorities have the circular hole that internal diameter is slightly less than the thermometer external diameter, and its external diameter equals flask caping internal diameter, and its thickness is about the sheet elastic washer of 1mm when free state; Ebulliometer flask mouth outer wall has and matches with flask lid internal thread and a side lacks silk
1.External thread, lack the filament length degree and follow screw thread the whole body, its wide (arc string) degree is slightly larger than or equals the thermometer external diameter, between flask lid and the flask outer wall being threaded, and the sealing of can kinking, under the sealing state, the slot of bottle cap lacks over against the bottleneck outer wall thread to be located.
What have the ground piston backflows the liquid fractionation pipe under the fractionation arm, and is on direction and angle with fractionation arm right-hand member
Type, and with straight type water-setting pipe in obtuse angle, its left end and flask junction (point) and sampling, filling opening and flask junction (point) are in sustained height, and are rotational symmetry.Coenosarc under ground piston opening communicates with liquid fractionation groove and ebulliometer flask for it.
Miniature ebulliometer flask bottle (removes sampling, filling opening, the fractionation arm and to have the liquid fractionation pipe that backflows of ground piston outer) shape is the cucurbit shape, the high 10cm of bottle, from bottom to up: flask (ball) specification is 50mL, bottle waist diameter 3cm, the high 2.5cm of bottle waist, bottleneck is a truncated cone, have the high 1.5cm of bottleneck that lacks the silk screw thread, external thread effective length 8～10mm.Bottle wall thickness 2mm.Straight type water condensing tube by the fractionation arm, have backflowing of ground piston
1. lack silk: promptly this place does not have screw thread, and its surface is in minor diameter of thread basal plane place, and surface light and slyness.Its objective is for fear of the glass screw thread under optical effect, to produce refraction, cause observed mercury slug complications, and make people's dim eyesight, read inaccurate mercury styletable scale.Liquid fractionation pipe (under the piston opening) communicates with ebulliometer flask coenosarc, and straight type water condensing tube effective length is 20cm, flask with directly between the type water condensing tube distance of shaft centers be 5cm, the fractionation arm is inclined upwardly 10 ° between among the flask waist height.
Flask lid is stainless steel material, is coated with in the lid to cross material and packing washer is high-temperature resistant rubber, and backflow liquid fractionation pipe and the miniature ebulliometer that have the ground piston are unformed exotic material.
The flask lid crosses rubber layer with adopting food (fruit) glass canned food iron sheet cover process method to be coated with in the threaded cap after adopting stainless steel internal thread twist-off cap production technology to make whole bottle cap.Stainless steel caping central authorities are stamped out the circular hole that the difficult direct puncture of thermometer is crossed with stamping machine dress knife mold.Other makes one and directly has the steel mold of the scarce silk screw thread of same size with flask mouth outer wall, and on steel mold, make two parallel marks that equal to lack silk wide (arc string) degree apart, fill up in the stainless steel twist-off cap that crosses rubber layer with behind the packing washer being coated with in above-mentioned, its stubborn precession is lacked in the silk screw-thread steel mould, screwing hermetic, it is identical with scarce silk radian to load onto specification on stamping machine, length equals the spot facing cutter of the interior packing washer lower edge of flask lid to flask lid upper edge, crimping place, aim at the stainless steel twist-off cap lack silk place (on the steel mold parallel marks, can find out) and above-mentioned stainless steel bottle cap specific on, the start punching press of place, lower edge can be dug out the qualified flask lid that wall has the rectangle breach.Produce the knife mold of the medium pore of flask lid, scarce silk threaded mold and spot facing cutter material and be plow-steel.
The connection method of liquid fractionation pipe on miniature ebulliometer that has piston.With condenser pipe upper end and sampling, filling opening seals respectively, with two taper cutting edge of a knife or a sword flames (oxy arc): aim under the fractionation arm for one, and with sampling, filling opening and flask junction (point), and be that axisymmetric this some place concentrates scorification, another aims at center at the bottom of the former liquid fractionation groove of condenser pipe below and this some place of being partial between flask 3～5mm concentrates scorification, burning bottle mouth position air blowing pressurization, above-mentioned 2 place's scorification points are blown drum gently, the convex camber and the liquid fractionation mouth of pipe that backflows that has the ground piston are directly equated, when if does not wherein wait in scorification point place's convex camber and the above-mentioned liquid fractionation mouth of pipe footpath of backflowing, the thin cutting edge of a knife or a sword flame of scalable temperature equates both, burn to red soft, continue the pressurization of blowing, two place's convex cambers are blown out with sudden force, cut film, equating in addition, molten light.Backflow liquid fractionation pipe two ends and the two cut places that desire will be connected are heated to red soft simultaneously again, surelyly and accurately dock two places at the flame place and make it to be bonded together, simultaneously, continue bonding two places of usefulness flame burning the bottle mouth position pressurization of blowing slightly, until sealing, leave flame, continue the pressurization of blowing, make two place's slynesses, do not see seam, annealing naturally cools to room temperature, is finished product.
Below in conjunction with accompanying drawing the present invention is described further.Accompanying drawing is object construction figure of the present invention.
Among the figure: 1. thermometer 2. flasks cover the sampling of 3. packing washers, 4. slots 5., the filling opening 6. ground pistons 7. liquid fractionation pipe 8. liquid fractionation grooves 9. fractionation arms 10. straight type water condensing tubes that backflow
As shown in the figure, the present invention includes the flask lid 2 that has thermometer 1, packing washer 3 is to fuse by miniature ebulliometer with the liquid fractionation pipe 7 that backflows that has ground piston 6.Flask covers 2 caping central authorities and has the circular hole that just thermometer 1 is vertically passed, be lined with packing washer 3 in the caping, lid end crimping, the cup inwall has and is coated with the screw that crosses rubber, lid cylinder one side has slot 4, Kong Changcong packing washer 3 lower edges are to covering place, crimping upper edge, the end, and hole wide (arc string) equals thermometer 1 external diameter; Packing washer 3 central authorities have the circular hole that internal diameter is slightly less than thermometer 1 external diameter, and its external diameter equals the top internal diameter of flask lid 2, and its thickness is about the sheet elastic washer of 1mm when free state; Ebulliometer flask mouth outer wall has and covers with flask that 2 internal threads match and a side lacks the external thread of silk.Lack the filament length degree and follow screw thread the whole body, its wide (arc string) is slightly larger than or equals thermometer 1 external diameter, between flask lid 2 and the flask outer wall being threaded, and the sealing of can kinking, under the sealing state, the slot of bottle cap lacks over against the bottleneck outer wall thread to be located.
The liquid fractionation pipe 7 that backflows that has ground piston 6 under fractionation arm 9, and is on direction and angle with fractionation arm 7 right-hand members
Type, and with straight type water condensing tube in obtuse angle, its left end and flask junction (point) and sampling, filling opening 5 and flask junction (point) are in sustained height, and are rotational symmetry.Coenosarc under ground piston 6 openings communicates with liquid fractionation groove 8 and ebulliometer flask for it.
Miniature ebulliometer flask bottle (removes sampling, filling opening 5, fractionation arm 9 and to have the liquid fractionation pipe 7 that backflows of ground piston 6 outer) shape is the cucurbit shape, the high 10cm of bottle, flask (ball) specification is 50mL, bottle waist diameter 3cm, the high 2.5cm of bottle waist, bottleneck is a truncated cone, have the high 1.5cm of bottleneck that lacks the silk screw thread, external thread effective length 8～10mm.Bottle wall thickness 2mm.Straight type water condensing tube 10 communicates with ebulliometer flask coenosarc by fractionation arm 9, the liquid fractionation pipe 7 that backflows (under piston 6 openings) that has a ground piston 6, straight type water condensing tube 10 effective lengths are 20cm, distance of shaft centers is 5cm between flask and the straight type water condensing tube 10, fractionation arm 9 is inclined upwardly 10 ° between among the flask waist height.
Flask lid 2 is a stainless steel material, is coated with in the lid to cross material and packing washer 3 is high-temperature resistant rubber, and backflow liquid fractionation pipe 7 and the miniature ebulliometer that have the ground piston are unformed exotic material.
Flask lid 2 crosses rubber layer with adopting food (fruit) glass canned food iron sheet cover process method to be coated with in the threaded cap after adopting stainless steel internal thread twist-off cap production technology to make integral body.Equal the thermometer diameter of phi with stamping machine dress diameter of phi
+ 0.1Knife mold flask covered 2 caping central authorities stamp out the circular hole that thermometer 1 is vertically passed.Other makes one and directly has the steel mold of the scarce silk screw thread of same size with flask mouth outer wall, and on steel mold, make two parallel marks that equal to lack silk wide (arc string) degree apart, fill up in the stainless steel twist-off cap that crosses rubber layer with behind the packing washer 3 being coated with in above-mentioned, its stubborn precession is lacked in the silk screw-thread steel mould, screwing hermetic, it is identical with scarce silk radian to load onto specification on stamping machine, length equals the spot facing cutter that flask lid 2 interior packing washer 3 lower edges to flasks cover upper edge, 2 crimping place, aiming at the stainless steel twist-off cap lacks on silk place (can find out on the steel mold parallel marks) and above-mentioned stainless steel bottle cap specific, the start punching press of place, lower edge can be dug out the qualified flask lid 2 that wall has the rectangle breach.
When using the present invention to do biliquid to be the gas-liquid phase diagram experiment, to fill up with packing washer 3 in the flask lid 2, and under oppositely unscrewing state, thermometer 1 passed the circular hole that flask covers 2 caping central authorities and insert in the flask, under the forward tight condition, at this moment, can make the slot 4 of flask lid 2 lack the silk place just over against the flask outer wall, meanwhile, make temperature in respect of the scale face over against slot 4; At this moment, packing washer 3 screw, under the squeezed state, the one, with flask face seal suitable for reading, the 2nd, with thermometer 1 tight clamping and sealing.Add biliquid system by sampling, filling opening 5, filled in the ground lid, this ebulliometer is put into transformation, control-temperature electric heating cover, feed tap water in the straight type water condensing tube 10, closure piston 6 is opened the electric jacket power switch, and the heating fractionation gets final product.
One of peculiar technology of the present invention, be under condensing state at every turn with after the liquid fractionation sampling, open piston 6, the residue liquid fractionation just can be automatically fully in the flow back into flask by the liquid fractionation pipe that backflows in the liquid fractionation groove.14 same repeatedly operations of having saved original inclination, being inverted the liquid fractionation groove and removing the liquid fractionation in the groove with the suction pipe suction.Advantage is: convenient and swift.
Two of peculiar technology of the present invention is when certain several close constant boiling point drops in the flask lid just, can make things convenient for exactly and read these constant boiling point values from the slot that flask covers.Obviously, can not have influence on the accurate drafting of phasor.
Three of peculiar technology of the present invention, be the maximum consumption of the biliquid of getting system can not surpass 17.5mL.Advantage is: experiment fast, during joint, energy-conservation, save reagent.
Facts have proved, do experiment with this invention, about 2/3 in the time of can saving, energy-conservation about 1/2, save reagent about 1/2.It is a kind of convenient quick boiling point investigating instrument of modernized Green Chemistry experiment miniature semi-automatic worthy of the name.
Claims (2)
1. the convenient quick boiling point investigating instrument of the miniature semi-automatic liquid fractionation pipe that backflows that comprises flask lid, the packing washer that has thermometer and have a piston is to fuse by miniature ebulliometer, it is characterized in that flask lid caping central authorities have the circle hole that thermometer is vertically passed, be lined with packing washer in the caping, lid end crimping, the cup inwall has and is coated with the screw thread that crosses rubber, lid cylinder one side has slot, Kong Changcong packing washer lower edge is to covering place, crimping upper edge, the end, the wide thermometer external diameter that equals in hole; Packing washer central authorities have the circular hole that internal diameter is slightly less than the thermometer external diameter, and its external diameter equals flask caping internal diameter, and its thickness is about the sheet elastic washer of 1mm when free state; Ebulliometer flask mouth outer wall has and matches with flask lid internal thread and a side lacks the external thread of silk, lack the filament length degree and follow screw thread the whole body, its wide (arc string) degree is slightly larger than or equals the thermometer external diameter, between flask lid and the flask outer wall to be threaded, and the sealing of can kinking, under the sealing state, the slot of bottle cap lacks the silk place over against the bottleneck outer wall; What have the ground piston backflows the liquid fractionation pipe under the fractionation arm, and be on direction and angle with fractionation arm right-hand member "
" type, and with straight type water-setting pipe in obtuse angle, its left end and flask junction (point) and sampling, filling opening and flask junction (point) are in sustained height, and are rotational symmetry; Coenosarc under ground piston opening communicates with liquid fractionation groove and ebulliometer flask for it;
Miniature ebulliometer flask bottle (removes sampling, filling opening, the fractionation arm and to have the liquid fractionation pipe that backflows of ground piston outer) shape is the cucurbit shape, the high 10cm of bottle, from bottom to up: flask (ball) specification is 50mL, bottle waist diameter 3cm, the high 2.5cm of bottle waist, bottleneck is a truncated cone, have the high 1.5cm of bottleneck that lacks the silk screw thread, external thread effective length 8～10mm; Bottle wall thickness 2mm; Straight type water condensing tube communicates with ebulliometer flask coenosarc by fractionation arm, the liquid fractionation pipe that backflows (under the piston opening) that has a ground piston, straight type water condensing tube effective length is 20cm, distance of shaft centers is 5cm between flask and the straight type water condensing tube, the fractionation arm is inclined upwardly 10 ° between among the flask waist height;
The production method of the convenient quick boiling point investigating instrument flask lid of miniature semi-automatic is after adopting stainless steel internal thread twist-off cap production technology to make whole bottle cap, to cross rubber layer with adopting food (fruit) glass canned food iron sheet cover process method to be coated with in the threaded cap: it is characterized in that with stamping machine dress knife mold stainless steel caping central authorities being stamped out the circular hole that just thermometer is vertically passed; Other makes one and directly has the steel mold of the scarce silk screw thread of same size with flask mouth outer wall, and on steel mold, make two parallel marks that equal to lack silk wide (arc string) degree apart, fill up in the stainless steel twist-off cap that crosses rubber layer with behind the packing washer being coated with in above-mentioned, its stubborn precession is lacked in the silk screw-thread steel mould, screwing hermetic, it is identical with scarce silk radian to load onto specification on stamping machine, length equals the spot facing cutter of the interior packing washer lower edge of flask lid to flask lid upper edge, crimping place, aim at the stainless steel twist-off cap lack silk place (on the steel mold parallel marks, can find out) and above-mentioned stainless steel bottle cap specific on, the start punching press of place, lower edge can be dug out the qualified flask lid that wall has the rectangle breach;
The connection method of liquid fractionation pipe on miniature ebulliometer that has piston: with the sampling of condenser pipe upper end, filling opening seals respectively, with two taper cutting edge of a knife or a sword flames (oxy arc): aim under the fractionation arm for one, and with sampling, filling opening and flask junction (point), and be that axisymmetric this some place concentrates scorification, another aims at center at the bottom of the former liquid fractionation groove of condenser pipe below and this some place of being partial between flask 3～5mm concentrates scorification, burning bottle mouth position air blowing pressurization, above-mentioned 2 place's scorification points are blown drum gently, the convex camber and the liquid fractionation mouth of pipe that backflows that has the ground piston are directly equated, when if does not wherein wait in scorification point place's convex camber and the above-mentioned liquid fractionation mouth of pipe footpath of backflowing, the thin cutting edge of a knife or a sword flame of scalable temperature equates both, burn to red soft, continue the pressurization of blowing, two place's convex cambers are blown out with sudden force, cut film, equating in addition, molten light; Backflow liquid fractionation pipe two ends and the two cut places that desire will be connected are heated to red soft simultaneously again, surelyly and accurately dock two places at the flame place and make it to be bonded together, simultaneously, continue bonding two places of usefulness flame burning the bottle mouth position pressurization of blowing slightly, until sealing, leave flame, continue the pressurization of blowing, make two place's slynesses, do not see seam, annealing naturally cools to room temperature, is finished product.
2. the convenient quick boiling point investigating instrument of miniature semi-automatic according to claim 1 is characterized in that the flask lid is stainless steel material, be coated with in the lid and cross material and packing washer is high-temperature resistant rubber, backflow liquid fractionation pipe and the miniature ebulliometer that have piston are unformed exotic material; Produce the knife mold of the medium pore of flask lid, scarce silk threaded mold and spot facing cutter material and be plow-steel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200610077563 CN1869671A (en) | 2006-04-26 | 2006-04-26 | Miniature semi-automatic portable quick boiling point investigating instrument |
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| CN 200610077563 CN1869671A (en) | 2006-04-26 | 2006-04-26 | Miniature semi-automatic portable quick boiling point investigating instrument |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104597072A (en) * | 2015-01-20 | 2015-05-06 | 兰州大学 | Boiling point testing instrument |
| CN107727684A (en) * | 2017-11-28 | 2018-02-23 | 广研德孚科技发展(深圳)有限公司 | A kind of boiling point tester of engine fluid and brake fluid |
-
2006
- 2006-04-26 CN CN 200610077563 patent/CN1869671A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104597072A (en) * | 2015-01-20 | 2015-05-06 | 兰州大学 | Boiling point testing instrument |
| CN107727684A (en) * | 2017-11-28 | 2018-02-23 | 广研德孚科技发展(深圳)有限公司 | A kind of boiling point tester of engine fluid and brake fluid |
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Open date: 20061129 |