CN109173338A - It is a kind of for extracting the device of nitrosamine compound - Google Patents
It is a kind of for extracting the device of nitrosamine compound Download PDFInfo
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- CN109173338A CN109173338A CN201810983225.1A CN201810983225A CN109173338A CN 109173338 A CN109173338 A CN 109173338A CN 201810983225 A CN201810983225 A CN 201810983225A CN 109173338 A CN109173338 A CN 109173338A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D11/04—Solvent extraction of solutions which are liquid
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Abstract
The invention discloses a kind of for extracting the device of nitrosamine compound, more particularly to laboratory apparatus field, the first snorkel that bottle is connected and the second snorkel that sample liquid receiving bottle is connected are accommodated including sample liquid receiving bottle, solvent receiving bottle, for the condensing unit of condensate fraction, the liquid distributing device for standing liquid separation for fraction, with solvent and for accelerating the rush stream device that gas flows in the first snorkel or the second snorkel pipe.The present invention has the flowing that can accelerate fraction or gaseous solvent in pipeline, thus the advantages of improving extraction efficiency.
Description
Technical field
It is specially a kind of for extracting the device of nitrosamine compound the present invention relates to laboratory apparatus field.
Background technique
Nitrosamine is one kind of N- nitroso compound, general structure R2(R1) N-N=O, not according to its molecular weight
Together, vapour pressure size is also different, can be come out by steam distillation and be known as volatile nitrosamine by what gas chromatography measured,
It otherwise is non-volatile nitrosamines.In recent years, water body and Pickle, meat of the people after drinking water, pollution processing disinfection
It is found in the food such as product.The food containing nitrosamine compound of disposable excess intake, can cause acute toxicity,
1987 international cancer research institution (IARC) nitrosamine has been defined as to the food pollution object of strong carcinogenicity.
Currently, when being measured to 10 kinds of nitrosamine compounds in meat products, it can be by steam distillation extraction
It is combined into one with liquid-liquid extraction method, reduces experimental procedure, save extractant.However, during actual use, it is also adjoint
Many problems.Such as: since the temperature in pipeline can make lower than heat source temperature if fraction flow velocity on pipeline is more slow
The time growth that fraction is detained on pipeline is obtained, so that fraction is easy to be back to because of liquefaction in circulation contains sample liquid
Container in, be unfavorable for improve conventional efficient.
Summary of the invention
The present invention provides a kind of for extracting the device of nitrosamine compound, the device have can accelerate to evaporate in pipeline
Point or gaseous solvent flowing, thus the advantages of improving extraction efficiency.
To achieve the above object, the invention provides the following technical scheme:
It is a kind of for extracting the device of nitrosamine compound, including sample liquid accommodates bottle, solvent accommodates bottle, for condensing
The condensing unit of fraction, for for fraction stand liquid separation liquid distributing device, with solvent accommodate bottle be connected the first snorkel, with
Sample liquid accommodates the second snorkel that bottle is connected and for accelerating gas flowing in the first snorkel or the second snorkel pipe
Rush stream device；The rush stream device includes the first Cu Liu mechanism and the second Cu Liu mechanism；First Cu Liu mechanism includes
The first rush flow tube being connected with the first snorkel, the first fixed bulge loop, the first bullet being arranged on the first rush flow tube inner tubal wall
Property part, in first promote flow tube in lumen sliding setting first flap and generate negative pressure to promote gas stream in the first rush flow tube
The first dynamic pressing piece；One end of first elastic component is mutually fixed with the first fixed bulge loop, and the other end is mutually solid with first flap
Fixed, the first rush flow tube inner tubal wall is fixed with the first sprue, and correspondingly, the first flap is equipped with and mutually fits with the first sprue
The first notch matched；Second Cu Liu mechanism include with the first snorkel and first rush flow tube be turned on second promote flow tube,
Second be arranged on the second rush flow tube inner tubal wall fixes bulge loop, the second elastic component, promotees lumen sliding setting in flow tube in second
Second flap and the second pressing piece for generating negative pressure to promote gas in the second rush flow tube to flow；Second elastic component
One end is mutually fixed with the second fixed bulge loop, and the other end is mutually fixed with second flap, and the second rush flow tube inner tubal wall is fixed with
Second sprue, correspondingly, the second flap are equipped with the second notch compatible with the second sprue；The first flap is located at the
The right side of one fixed bulge loop, the second flap are located at the right side of the second fixed bulge loop.
Preferably, first pressing piece includes the first sliding lumen being connected with the first rush flow tube, is slideably positioned in
The edge of First piston bar and the first rotating wheel in first sliding lumen, first rotating wheel and First piston bar rotates
Connection；Second pressing piece includes the second sliding lumen being connected with the second rush flow tube, is slideably positioned in the second sliding lumen
Second piston bar and the second rotating wheel, the edge of second rotating wheel and second piston bar rotate connection；The present invention
It further include driving device, rotation axis and the fixed block for driving the first rotating wheel and the second rotating wheel while rotation, it is described
First rotating wheel and the second rotating wheel are rotated by rotation axis synchronized links, and the output end of driving device is mutually fixed with rotation axis,
One end of the fixed block and rotation axis are rotatablely connected, and the other end and the outer tube wall that the first rush flow tube and second promote flow tube are mutually solid
It is fixed；First rotating wheel and the tie point of First piston bar are the first tie point, the tie point of the second rotating wheel and second piston bar
It is the second tie point, the first tie point and the second tie point have difference in height in the vertical direction.
Preferably, the quantity for promoting stream device is two, second snorkel accommodates the one of bottle backwards to sample liquid
End is connected with stream device is promoted；The one end for promoting steam outflow in stream device is outlet side, and the outlet side connects with extraction round vase
Logical, the inside of the extraction round vase is equipped with the flabellum for accelerating fraction to be uniformly mixed with solvent.
Preferably, the condensing unit includes outer tube, middle sleeve, inner sleeve, outlet pipe and water inlet pipe；In described
Casing is connected with extraction round vase, and the gap passed through for condensed water, the inner sleeve are formed between the outer tube and middle sleeve
Interior to be equipped with spiral cooling water pipe, the water inlet pipe is connected with cooling water pipe, the outlet pipe and the gap phase
It connects.
Preferably, the liquid distributing device includes and delivery flask, solvent effuser and fraction effuser, the delivery flask
It is connected with middle sleeve, the delivery flask and solvent are accommodated and be connected between bottle by solvent effuser, the delivery flask and sample
This liquid, which accommodates, to be connected between bottle by fraction effuser, and the delivery flask and solvent accommodate the height height where the tie point of bottle
The height where delivery flask and sample liquid accommodate the tie point of bottle.
Preferably, the device further includes fixed device, the fixed device include fixing seat, the first telescopic fixing rod with
And second telescopic fixing rod, the quantity of first telescopic fixing rod are two, and accommodate bottle with sample liquid respectively and solvent holds
Bottle of receiving is detachably fixed, and second telescopic fixing rod is detachably fixed with middle sleeve.
Preferably, the driving device include driving motor, driving wheel, driven wheel, connecting rod and with rotation axis phase
The first umbellate form transmission gear is fixed, one end of the connecting rod is mutually fixed with driven wheel, and the other end is equipped with to be driven with the first umbellate form
Second umbellate form transmission gear of gear engagement, the driving wheel are engaged with driven wheel, the output end of the driving motor and active
The centre of wheel is mutually fixed.
Preferably, the device further includes the first fixed link for fixing driving wheel and for fixing driven wheel
Two fixed links, one end of first fixed link and driving wheel are rotatablely connected, and the other end is mutually fixed with the second telescopic fixing rod, institute
The one end and driven wheel for stating the second fixed link are rotatablely connected, and the other end is mutually fixed with the second telescopic fixing rod.
It is equipped with preferably, the solvent accommodates bottle for toppling over the liqiud outlet head for extracting mixed liquor.
Preferably, the sample liquid accommodates bottle equipped with the liquid outlet for toppling over sample liquid.
The invention has the benefit that
In the present invention, promote stream device realization by setting to add the air-flow in the first snorkel and the second snorkel
Speed reduces the time that fraction and gaseous solvent are detained on pipeline, prevents it from flowing back because of liquefaction, to be more advantageous to raising extraction
Take efficiency.
Detailed description of the invention
Fig. 1 is a kind of for extracting the structural schematic diagram of the device of nitrosamine compound in the present embodiment；
Fig. 2 is a kind of for extracting the structural schematic diagram of the device of nitrosamine compound in the present embodiment；
Fig. 3 is the portion the A enlarged drawing in Fig. 2；
Fig. 4 is a kind of for extracting the schematic diagram of the section structure of the device of nitrosamine compound in the present embodiment；
Fig. 5 is the portion the C enlarged drawing in Fig. 4；
Fig. 6 is the portion the D enlarged drawing in Fig. 5；
Fig. 7 is a kind of for extracting the schematic diagram of the section structure of the device of nitrosamine compound in the present embodiment；
Fig. 8 is the portion the E enlarged drawing in Fig. 7；
Fig. 9 is a kind of for extracting the schematic diagram of the section structure of the device of nitrosamine compound in the present embodiment；
Figure 10 is the portion the B enlarged drawing in Fig. 9.
In figure: 1, solvent receiving bottle, the 11, first snorkel, the 12, first rush flow tube, the 121, first rotating wheel, 122, first
Piston rod, the 123, first sliding lumen, 13, second promotees flow tube, and the 131, second rotating wheel, 132, second piston bar, 133, second is sliding
Lumen, 14, fixed block, 15, rotation axis, 2, extraction round vase, 21, flabellum, 31, outer tube, 32, middle sleeve, 33, inner sleeve, 34,
Cooling water pipe, 35, outlet pipe, 36, water inlet pipe, 41, delivery flask, 43, solvent effuser, 44, fraction effuser, 5, sample liquid appearance
Receive bottle, the 51, second snorkel, the 61, second fixed bulge loop, the 62, second elastic component, 63, second flap, the 64, second sprue, 65,
First flap, the 66, first elastic component, the 67, first sprue, the 68, first fixed bulge loop, 71, fixing seat, 72, first is Telescopic Fixed
Bar, the 73, second telescopic fixing rod, 81, driving wheel, 82/83, driven wheel, the 84, first fixed link, 85, connecting rod, the 86, second umbrella
Type transmission gear, the 860, second fixed link, the 87, first umbellate form transmission gear.
Specific embodiment
The present embodiment provides a kind of technical solutions:
It is a kind of for extracting the device of nitrosamine compound, including sample liquid receiving bottle 5, solvent as shown in Fig. 1~10
It accommodates bottle 1, connect for the condensing unit of condensate fraction, the liquid distributing device for standing liquid separation for fraction, with solvent receiving bottle 1
The first logical snorkel 11 and sample liquid accommodate the second snorkel 51 that bottle 5 is connected and for accelerating the first snorkel 11
Or second snorkel 51 manage the rush stream device of interior gas flowing；Promoting stream device includes that the first Cu Liu mechanism and second promote stream machine
Structure；First Cu Liu mechanism includes that first to be connected with the first snorkel 11 promotees flow tube 12, setting in the first rush 12 inner tube of flow tube
The first fixed bulge loop 68, the first elastic component 66 on wall, in first promote the first flap 65 of lumen sliding setting in flow tube 12 with
And negative pressure is generated to promote the first pressing piece that gas flows in the first rush flow tube 12；One end of first elastic component 66 is solid with first
To determine 68 phase of bulge loop to fix, the other end is fixed with 65 phase of first flap, and the first rush 12 inner tubal wall of flow tube is fixed with the first sprue 67,
Correspondingly, first flap 65 is equipped with first notch compatible with the first sprue 67；Second Cu Liu mechanism includes and first ventilates
Pipe 11 and first rush flow tube 12 be turned on second rush flow tube 13, be arranged in second rush 13 inner tubal wall of flow tube on second fixation it is convex
Ring 61, promotees the second flap 63 of lumen sliding setting in flow tube 13 in second and generates negative pressure to promote second elastic component 62
Second promotees the second pressing piece of gas flowing in flow tube 13；One end of second elastic component 62 is fixed with the second fixed 61 phase of bulge loop,
The other end is fixed with 63 phase of second flap, and the second rush 13 inner tubal wall of flow tube is fixed with the second sprue 64, correspondingly, second flap
63 are equipped with second notch compatible with the second sprue 64；First flap 65 is located at the right side of the first fixed bulge loop 68, second gear
Piece 63 is located at the right side of the second fixed bulge loop 61.
Wherein, the first snorkel 11 and the second snorkel 51 are connected with rush stream device.When the first pressing piece is driven
When, the negative pressure of generation can make the fraction in the first rush flow tube 12 accelerate flowing.Also being connected due to the second snorkel 51 has rush to flow
Device, therefore the fraction in the first rush flow tube 12 can accelerate to come into full contact with the solvent in corresponding pipeline, to realize extraction
Process.Since the second pressing piece being correspondingly arranged in the second rush flow tube 13 and the first pressing piece staggeredly press, i.e., when the first pressure
When part generates negative pressure absorbing gas, the second pressing piece is pushes down on, so that corresponding second promotees the gas discharge in flow tube 13, from
And the gas in pipe is more concentrated, to improve extraction efficiency.
When the first pressing piece moves upwards draw gas, first flap 65 is separated with 67 phase of the first sprue, the first elasticity
Part 66 is in extended state, promotees inside flow tube 12 so that fraction or gaseous solvent are rapidly entered into first.At the same time,
Second pressing piece moves downward, and fraction or gaseous solvent will push the movement of second flap 63, so that at the second elastic component 62
In extended state, when second flap 63 and the second sprue 64 are staggered, fraction or gaseous solvent can promote flow tube 13 from second
Outflow correspondingly enters the first rush flow tube 12 so that gaseous fraction or solvent be prevented to be detained in pipe and is greatly improved extraction
Efficiency.
When the first elastic component 66 and the second elastic component 62 are not stretched or compressed, first in first flap 65 is lacked
Mouth is mutually engaged with the first sprue 67.The second notch in second flap 63 is also mutually to be engaged with the second sprue 64, this sets
Meter can prevent the first pressing piece or the second pressing piece when being not driven, and fraction flows into sample liquid and accommodates at bottle 5, or prevents
Gaseous solvent is flowed into solvent and accommodates at bottle 1.
As shown in figure 3, the first pressing piece includes the first sliding lumen 123 being connected with the first rush flow tube 12, sliding setting
First piston bar 122 and the first rotating wheel 121, the first rotating wheel 121 and First piston bar in the first sliding lumen 123
122 edge rotates connection；Second pressing piece includes that second to be connected with the second rush flow tube 13 slides lumen 133, sliding is set
The second piston bar 132 and the second rotating wheel 131, the second rotating wheel 131 and second piston bar being placed in the second sliding lumen 133
132 edge rotates connection.
The present embodiment further include for drive the first rotating wheel 121 and the second rotating wheel 131 and meanwhile rotation driving device,
Rotation axis 15 and fixed block 14, the first rotating wheel 121 and the second rotating wheel 131 are rotated by 15 synchronized links of rotation axis, are driven
The output end of dynamic device is fixed with 15 phase of rotation axis, and one end of fixed block 14 and rotation axis 15 are rotatablely connected, the other end and first
The outer tube wall for promoting flow tube 12 and the second rush flow tube 13 is mutually fixed.First rotating wheel 121 and the tie point of First piston bar 122 are the
The tie point of one tie point, the second rotating wheel 131 and second piston bar 132 is the second tie point, and the first tie point and second connect
Contact has difference in height in the vertical direction.
By above-mentioned setting, it may make the first pressing piece and the second pressing piece during exercise, be always at staggered state,
I.e. when the first rotating wheel 121 pulls First piston bar 122 to move upwards, when so that the first rush flow tube being in suction condition, second
Rotating wheel 131 pushes second piston bar 132, so that second promotees the state that flow tube is in exhaust, so that second be promoted in flow tube
Gas is all circulated into the first rush flow tube, so that the gas flow rate in pipe is faster, accelerates the generation of extraction reaction.
As shown in figure 9, the quantity for promoting stream device is two, the second snorkel 51 backwards to sample liquid accommodate one end of bottle 5 with
Promote stream device to be connected；The one end for promoting steam outflow in stream device is outlet side, and outlet side is connected with extraction round vase 2, is extracted
The inside of round vase 2 is equipped with the flabellum 21 for accelerating fraction to be uniformly mixed with solvent.When gaseous solvent and gaseous fraction are extracting
When meeting and struck on flabellum 21 in round vase 2, flabellum can rotate, so that fraction and solvent mix more uniform.
As shown in Figure 9 and Figure 10, condensing unit include outer tube 31, middle sleeve 32, inner sleeve 33, outlet pipe 35 and into
Water pipe 36；Middle sleeve 32 is connected with extraction round vase 2, is formed between passing through for condensed water between outer tube 31 and middle sleeve 32
Gap is equipped with spiral cooling water pipe 34 in inner sleeve 33, and water inlet pipe 36 is connected with cooling water pipe 34, outlet pipe 35 and
Gap is connected.
When experimenter connects water inlet pipe 36, cold water is flowed up along 34 spiral of cooling water pipe, and is then flowed to
In the gap formed between outer tube 31 and middle sleeve 32, so that cooling better effect.
As shown in Fig. 2, liquid distributing device includes and delivery flask 41, solvent effuser 43 and fraction effuser 44, delivery flask
41 are connected with middle sleeve 32, and delivery flask 41 and solvent are accommodated and be connected between bottle 1 by solvent effuser 43, delivery flask 41 with
Sample liquid is accommodated and is connected between bottle 5 by fraction effuser 44, and delivery flask 41 and solvent accommodate the height where the tie point of bottle 1
Degree is higher than delivery flask 41 and sample liquid accommodates height where the tie point of bottle 5.
The present embodiment further includes fixed device, and fixed device includes fixing seat 71, the first telescopic fixing rod 72 and second
Telescopic fixing rod 73, the quantity of the first telescopic fixing rod 72 are two, and accommodate bottle 5 and solvent receiving bottle 1 with sample liquid respectively
It is detachably fixed, the second telescopic fixing rod 73 is detachably fixed with middle sleeve 32.
As shown in Fig. 2, driving device include driving motor, driving wheel 81, driven wheel 82,83, connecting rod 85 and with turn
15 phase of moving axis fixes the first umbellate form transmission gear 87, and one end and driven wheel 82,83 phases of connecting rod 85 are fixed, the other end be equipped with
Second umbellate form transmission gear 86 of the first umbellate form transmission gear 87 engagement, driving wheel 81 are engaged with driven wheel 82,83, driving motor
The centre of output end and driving wheel 81 mutually fix.
The present embodiment further includes the first fixed link 84 for fixing driving wheel 81 and for fixing driven wheel 82,83
Second fixed link 860, one end of the first fixed link 84 and driving wheel 81 are rotatablely connected, the other end and 73 phase of the second telescopic fixing rod
Fixed, one end of the second fixed link 860 and driven wheel 82,83 are rotatablely connected, and the other end is fixed with 73 phase of the second telescopic fixing rod.
It is equipped with as shown in Figure 1, solvent accommodates bottle 1 for toppling over the liqiud outlet head (not marking in attached drawing) for extracting mixed liquor.
As shown in Figure 1, sample liquid accommodates bottle 5 equipped with the liquid outlet (not marking in attached drawing) for toppling over sample liquid.
Claims (10)
1. a kind of for extracting the device of nitrosamine compound, which is characterized in that accommodate bottle (5) including sample liquid, solvent holds
Receive bottle (1), for condensate fraction condensing unit, for for fraction stand liquid separation liquid distributing device, with solvent receiving bottle (1) phase
The first snorkel (11) and sample liquid connected accommodate the second snorkel (51) that bottle (5) are connected and for accelerating first
Snorkel (11) or the second snorkel (51) manage the rush stream device of interior gas flowing；
The rush stream device includes the first Cu Liu mechanism and the second Cu Liu mechanism；
First Cu Liu mechanism includes that first to be connected with the first snorkel (11) promotees flow tube (12), setting in the first rush stream
It manages first on (12) inner tubal wall fixed bulge loop (68), the first elastic component (66), set in the interior lumen sliding of the first rush flow tube (12)
The first flap (65) set and the first pressing piece for generating negative pressure to promote the interior gas of the first rush flow tube (12) to flow；
One end of first elastic component (66) is mutually fixed with first fixed bulge loop (68), and the other end is mutually solid with first flap (65)
Fixed, described first rush flow tube (12) inner tubal wall is fixed with the first sprue (67), correspondingly, the first flap (65) be equipped with
Compatible first notch of first sprue (67)；
Second Cu Liu mechanism includes promoting flow tube (12) are turned on second with the first snorkel (11) and first to promote flow tube
(13), second fixed bulge loop (61) on second rush flow tube (13) inner tubal wall, the second elastic component (62) are set, promote stream in second
The second flap (63) and generation negative pressure of the interior lumen sliding setting of pipe (13) are to promote the interior gas flowing of the second rush flow tube (13)
The second pressing piece；
One end of second elastic component (62) is mutually fixed with second fixed bulge loop (61), and the other end is mutually solid with second flap (63)
Fixed, described second rush flow tube (13) inner tubal wall is fixed with the second sprue (64), correspondingly, the second flap (63) be equipped with
Compatible second notch of second sprue (64)；
The first flap (65) is located at the right side of first fixed bulge loop (68), and it is convex that the second flap (63) is located at the second fixation
The right side of ring (61).
2. according to claim 1 a kind of for extracting the device of nitrosamine compound, which is characterized in that described first
Pressing piece includes first sliding lumen (123) being connected with the first rush flow tube (12), is slideably positioned in first sliding lumen (123)
First piston bar (122) and the first rotating wheel (121), the side of first rotating wheel (121) and First piston bar (122)
Edge rotates connection；
Second pressing piece includes second sliding lumen (133) being connected with the second rush flow tube (13), is slideably positioned in second
Second piston bar (132) and the second rotating wheel (131) in sliding lumen (133), second rotating wheel (131) are living with second
The edge of stopper rod (132) rotates connection；
It further include for driving the driving device of the first rotating wheel (121) and the second rotating wheel (131) while rotation, rotation axis
(15) and fixed block (14), first rotating wheel (121) and the second rotating wheel (131) pass through rotation axis (15) synchronized links
Rotation, output end and the rotation axis (15) of driving device are mutually fixed, and one end and rotation axis (15) of the fixed block (14) rotate
Connection, the outer tube wall that the other end promotees flow tube (12) and the second rush flow tube (13) with first are mutually fixed；
The tie point of first rotating wheel (121) and First piston bar (122) is the first tie point, the second rotating wheel (131) and the
The tie point of two piston rods (132) is the second tie point, and the first tie point and the second tie point have height in the vertical direction
Difference.
3. according to claim 1 a kind of for extracting the device of nitrosamine compound, which is characterized in that the rush stream
The quantity of device is two, and second snorkel (51) is connected backwards to one end that sample liquid accommodates bottle (5) with stream device is promoted；
The one end for promoting steam outflow in stream device is outlet side, and the outlet side is connected with extraction round vase (2), the extraction circle
The inside of bottle (2) is equipped with the flabellum (21) for accelerating fraction to be uniformly mixed with solvent.
4. according to claim 3 a kind of for extracting the device of nitrosamine compound, which is characterized in that the condensation
Device includes outer tube (31), middle sleeve (32), inner sleeve (33), outlet pipe (35) and water inlet pipe (36)；
The middle sleeve (32) is connected with extraction round vase (2), forms cooling supply between the outer tube (31) and middle sleeve (32)
The gap that condensate passes through is equipped with spiral cooling water pipe (34) in the inner sleeve (33), the water inlet pipe (36) with it is cold
But water pipe (34) is connected, and the outlet pipe (35) is connected with the gap.
5. according to claim 4 a kind of for extracting the device of nitrosamine compound, which is characterized in that the liquid separation
Device includes and delivery flask (41), solvent effuser (43) and fraction effuser (44), the delivery flask (41) and middle sleeve
(32) it is connected, the delivery flask (41) and solvent are accommodated and be connected between bottle (1) by solvent effuser (43), the liquid separation
Bottle (41) and sample liquid are accommodated and are connected between bottle (5) by fraction effuser (44), and the delivery flask (41) and solvent accommodate
Height where the tie point of bottle (1) is higher than delivery flask (41) and sample liquid accommodates height where the tie point of bottle (5).
6. according to claim 5 a kind of for extracting the device of nitrosamine compound, which is characterized in that further include solid
Determine device, the fixed device includes fixing seat (71), the first telescopic fixing rod (72) and the second telescopic fixing rod (73), institute
The quantity for stating the first telescopic fixing rod (72) is two, and accommodates bottle (5) and solvent receiving bottle (1) detachably with sample liquid respectively
Fixed, second telescopic fixing rod (73) is detachably fixed with middle sleeve (32).
7. according to claim 6 a kind of for extracting the device of nitrosamine compound, which is characterized in that the driving
Device includes driving motor, driving wheel (81), driven wheel (82,83), connecting rod (85) and mutually fixes with rotation axis (15)
One umbellate form transmission gear (87), one end and the driven wheel (82,83) of the connecting rod (85) are mutually fixed, and the other end is equipped with and first
Second umbellate form transmission gear (86) of umbellate form transmission gear (87) engagement, the driving wheel (81) are engaged with driven wheel (82,83),
The output end of the driving motor and the centre of driving wheel (81) are mutually fixed.
8. according to claim 7 a kind of for extracting the device of nitrosamine compound, which is characterized in that further include using
In first fixed link (84) of fixed driving wheel (81) and the second fixed link (860) for fixing driven wheel (82,83), institute
The one end and driving wheel (81) for stating the first fixed link (84) are rotatablely connected, and the other end is mutually fixed with the second telescopic fixing rod (73),
One end and driven wheel (82,83) of second fixed link (860) are rotatablely connected, the other end and the second telescopic fixing rod (73) phase
It is fixed.
9. according to claim 1 a kind of for extracting the device of nitrosamine compound, which is characterized in that the solvent
Bottle (1) is accommodated to be equipped with for toppling over the liqiud outlet head for extracting mixed liquor.
10. according to claim 1 a kind of for extracting the device of nitrosamine compound, which is characterized in that the sample
This liquid accommodates bottle (5) equipped with the liquid outlet for toppling over sample liquid.
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|---|---|---|---|
| CN201810983225.1A CN109173338B (en) | 2018-08-27 | 2018-08-27 | Device for extracting nitrosamine compounds |
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| CN102559387A (en) * | 2012-01-19 | 2012-07-11 | 西南大学 | Plant essential oil simultaneous distillation and extraction apparatus |
| US20150126794A1 (en) * | 2013-11-05 | 2015-05-07 | Jason C. JONES | Private user ethanol removal system |
| CN105031969A (en) * | 2015-06-28 | 2015-11-11 | 复旦大学 | Solid phase extraction method for large-volume environment water sample flow velocity control, and apparatus thereof |
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