CN208399249U - A kind of nitrogen evaporator containing special nozzle needle - Google Patents
A kind of nitrogen evaporator containing special nozzle needle Download PDFInfo
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- CN208399249U CN208399249U CN201820813566.XU CN201820813566U CN208399249U CN 208399249 U CN208399249 U CN 208399249U CN 201820813566 U CN201820813566 U CN 201820813566U CN 208399249 U CN208399249 U CN 208399249U
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Abstract
This application discloses a kind of nitrogen evaporators containing special nozzle needle, including nozzle needle, the nozzle needle top is hollow round table, lower part is hollow circuit cylinder, the diameter of the upper bottom surface of the rotary table is less than the diameter of the bottom surface of rotary table, the diameter of bottom surface of diameter and rotary table of the cylinder is identical, high 1.5~the 3cm of rotary table, the high 2.5~5cm of cylinder.Nozzle needle top is hollow round table in the application, and diameter is gradually expanded from top to bottom, and the body diameter of lower part is identical as the bottom surface diameter of rotary table no longer changes, first, this kind of structure makes in the case where volumetric flow of gas is certain, flow velocity is slack-off, so that the nitrogen for flowing out it becomes smaller to the impact of the liquid in centrifuge tube, causes testing result inaccurate after avoiding liquid from being blown out centrifuge tube；Secondly, the state kept vertically downward that this kind of structure enables nozzle needle more stable, it is not easy to tilt, it is easier to directly to centrifuge tube, the processing speed of sample can be accelerated.
Description
Technical field
The utility model relates to laboratory's utensil articles fields, more particularly to a kind of nitrogen evaporator containing special nozzle needle.
Background technique
Nitrogen evaporator is a kind of common laboratory apparatus in analytical chemistry, is purged using inert gas to fluid sample,
The effect of concentration, purifying is played, this method is easy to operate, can handle multiple samples with mass simultaneous, be widely used in all kinds of inspections
Survey field.For example, using the content of vitamin D in 25(OH)VD detection kit detection blood serum sample, to serum sample
Product carry out the nitrogen evaporator to be used when pre-treatment.Nitrogen blow needle (nozzle needle) is the corollary apparatus of nitrogen evaporator, CN205749088U
A kind of parallel nitrogen blow needle group is disclosed, including needle stand and multiple nitrogen blow needles, multiple nitrogen blow needles are mounted on needle stand, needle stand and nitrogen are blown
The channel for nitrogen circulation is opened up in needle, nitrogen blow needle has large diameter section and small internal diameter section, and the outlet of nitrogen blow needle is internal diameter reduction
Small internal diameter section, the program significantly reduces the nitrogen flow difference between multichannel nitrogen blow needle, to improve nitrogen evaporator concentration
Collimation.CN205374149U disclose it is a kind of accelerate volatilization and from cleaning nitrogen evaporator with for air tube, including needle body and needle
Set, needle body are provided with a disk close to syringe needle one end, and needle body is just embedded in disk center, is provided on disk corresponding with needle guard
The bayonet that can be engaged, the needle body long 10-15cm, diameter 1mm；Needle guard is ducted body, and upper end is provided with and needle body circle
The corresponding bayonet that can be engaged of disk；There is air blowing notch in bottom, which can effectively prevent for air tube for air tube
It pollutes and influences to use next time, needle guard is equipped with multiple air blowing notch and increases the contact area of air-flow and solvent, to accelerate
The speed of solvent volatilization.
The nitrogen gas source of common nitrogen evaporator is high pure nitrogen steel cylinder (15MPa), and gas passes through nitrogen blow needle by the road and blows to
Liquid to be concentrated, because general, there is no the flowmeter of coutroi velocity or operating process in the pipeline that nitrogen flows out
It is improper, so, often due to nitrogen flow rate is excessive, the liquid in centrifuge tube is easy to blow every time when opening pressure reducing valve
Out, the sensitivity and accuracy of testing result are influenced, it is meticulous additionally, due to nozzle needle and very long, so past when usually using
Toward that can distort, the centrifuge tube that cannot face lower section is caused, and when the platform of fixed nozzle needle moves down, it is a lot of to distort
Nozzle needle can also correct manually and be returned in centrifuge tube outside centrifuge tube.
Utility model content
In view of the above shortcomings of the prior art, the purpose of this utility model is to provide a kind of containing special nozzle needle
Nitrogen evaporator.
In order to achieve the above object, a kind of nitrogen evaporator containing special nozzle needle provided by the utility model, using following technology
Scheme:
A kind of nitrogen evaporator containing special nozzle needle, including nozzle needle, the nozzle needle top is hollow round table, lower part is hollow circle
Column, the diameter of the upper bottom surface of the rotary table are less than the diameter of the bottom surface of rotary table, the diameter of the cylinder and the bottom surface of rotary table
Diameter it is identical, the high 1.5~3cm of rotary table, the high 2.5~5cm of cylinder.
In the preferred embodiment of the application, the diameter of the upper bottom surface of the rotary table is 0.3cm, the bottom of rotary table
The diameter in face is 1.5cm, and the high 2cm of rotary table, the diameter of the cylinder is 1.5cm, the high 3cm of cylinder.
Preferably, the nitrogen evaporator containing special nozzle needle further comprises hollow circuit cylinder set, and the hollow circuit cylinder set is adopted
With rubber material, the hollow circuit cylinder set can be placed on the cylinder of nozzle needle lower part.
It is further preferred that the diameter of the hollow circuit cylinder set is identical as the body diameter of nozzle needle lower part, hollow circuit cylinder set
Height it is identical as the cylinder height of nozzle needle lower part.
Preferably, the hardness of the rubber material is 60A ± 5A.
The herein described nitrogen evaporator containing special nozzle needle can be greater than the centrifugation of the body diameter of nozzle needle lower part with internal diameter
Pipe matches.The internal diameter of centrifuge tube described herein refers to the diameter of centrifuge tube Upper cylindrical.
The herein described nitrogen evaporator containing special nozzle needle is applied to 25(OH)VD detection kit and detects serum
To the pre-treatment of blood serum sample when the content of vitamin D in sample.
Compared with prior art, the application has the advantages that
(1) nozzle needle top is hollow round table, and diameter is gradually expanded from top to bottom, and the body diameter of lower part and rotary table
Bottom surface diameter is identical no longer to be changed, firstly, this kind of structure makes in the case where volumetric flow of gas is certain, flow velocity is slack-off,
To which the nitrogen for flowing out it becomes smaller to the impact of the liquid in centrifuge tube, avoids liquid from being blown out centrifuge tube and cause testing result
Inaccuracy；Secondly, the state kept vertically downward that this kind of structure enables nozzle needle more stable, it is not easy to tilt, it is easier to
Directly to centrifuge tube, the processing speed of sample can be accelerated；
(2) nozzle needle structure in the application nitrogen evaporator is simple, manufacturing process is simple, convenient for promoting the use of；
(3) hollow circuit cylinder set is further provided on nozzle needle, and cylindrical sleeve uses rubber material, rubber material is softer, holds
It is easily placed on hollow circuit cylinder, and not easily to fall off, replacement is simple.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other spies of the utility model
Sign, objects and advantages will become more apparent upon:
Fig. 1 is nozzle needle structural schematic diagram in the embodiment of the present application 1；
Fig. 2 is that nozzle needle uses schematic diagram；
Appended drawing reference in figure: 1- nozzle needle, 2- rotary table, 3- cylinder, the upper bottom surface of 21- rotary table, the bottom surface of 22- rotary table, 4-
Centrifuge tube, 5- nitrogen gas generator, 6- nozzle needle interface, the fixed bracket of 7-.
Specific embodiment
The utility model is described in detail combined with specific embodiments below.Following embodiment will be helpful to this field
Technical staff further understands the utility model, but does not limit the utility model in any form.It should be pointed out that ability
For the those of ordinary skill in domain, without departing from the concept of the premise utility, various modifications and improvements can be made.
These are all within the protection scope of the present invention.
As shown in Figure 1, a kind of nitrogen evaporator containing special nozzle needle, including nozzle needle 1,1 top of nozzle needle are hollow round table
2, lower part is hollow circuit cylinder 3, and the diameter of the upper bottom surface 21 of the rotary table is less than the diameter of the bottom surface 22 of rotary table, the cylinder 3
Diameter it is identical as the diameter of bottom surface 22 of rotary table, the rotary table 2 is 1.5~3cm high, and the cylinder 3 is 2.5~5cm high.
In the present embodiment, the diameter of the upper bottom surface 21 of the rotary table is 0.3cm, and the diameter of the bottom surface 22 of rotary table is
1.5cm, rotary table 2 is 2cm high, and the diameter of the cylinder 3 is 1.5cm, and cylinder 3 is 3cm high.Nozzle needle top is hollow round table, and diameter
It is gradually expanded from top to bottom, and the body diameter of lower part is identical as the bottom surface diameter of rotary table no longer changes, this kind of structure makes
In the case where volumetric flow of gas is certain, flow velocity is slack-off, thus impact of the nitrogen for flowing out it to the liquid in centrifuge tube
Become smaller, liquid is avoided to be blown out centrifuge tube, causes the inaccuracy of testing result；And this kind of structure enables nozzle needle more steady
The fixed state kept vertically downward, it is not easy to tilt, it is easier to directly to centrifuge tube, the processing speed of sample can be accelerated.
The nitrogen evaporator containing special nozzle needle further comprises hollow circuit cylinder set, and the hollow circuit cylinder set uses rubber
Material can be placed on the cylinder of nozzle needle lower part.The diameter of the hollow circuit cylinder set is identical as the body diameter of nozzle needle lower part, in
The height of hollow round column set is identical as the cylinder height of nozzle needle lower part, and the hardness of the rubber material is 60A ± 5A.
The herein described nitrogen evaporator containing special nozzle needle can be greater than the centrifugation of the body diameter of nozzle needle lower part with internal diameter
Pipe 4 matches.The internal diameter of centrifuge tube described herein refers to the diameter of centrifuge tube Upper cylindrical.Bore is centrifuged in the present embodiment
For 1.7cm.In use, nozzle needle interface 6 etc. is fixed in fixed bracket 7, nozzle needle 1 is fixed on nozzle needle interface 6, and right
Quasi- centrifuge tube 4 opens nitrogen gas generator 5, and nitrogen initially enters the upper hollow rotary table of nozzle needle by pipeline, then passes through hollow circle
Platform enters hollow circuit cylinder, finally purges from the bottom of hollow circuit cylinder to the sample in centrifuge tube.
Specific embodiment of the utility model is described above.It is to be appreciated that the utility model not office
It is limited to above-mentioned particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims,
This has no effect on the substantive content of the utility model.
Claims (6)
1. a kind of nitrogen evaporator containing special nozzle needle, which is characterized in that including nozzle needle (1), nozzle needle (1) top is hollow circle
Platform (2), lower part are hollow circuit cylinder (3), and the diameter of the upper bottom surface (21) of the rotary table is less than the diameter of the bottom surface (22) of rotary table,
The diameter of the cylinder (3) and the diameter of bottom surface (22) of rotary table are identical, the high 1.5~3cm of the rotary table (2), the cylinder
(3) high 2.5~5cm.
2. containing the nitrogen evaporator of special nozzle needle according to claim 1, which is characterized in that the upper bottom surface (21) of the rotary table
Diameter is 0.3cm, and the diameter of the bottom surface (22) of rotary table is 1.5cm, and the diameter of rotary table (2) high 2cm, the cylinder (3) are
1.5cm, cylinder (3) high 3cm.
3. the nitrogen evaporator according to claim 1 or claim 2 containing special nozzle needle, which is characterized in that further comprise hollow circuit cylinder
Set, the hollow circuit cylinder set use rubber material, and the hollow circuit cylinder set can be placed on the cylinder (3) of nozzle needle lower part.
4. containing the nitrogen evaporator of special nozzle needle according to claim 3, which is characterized in that the diameter of hollow circuit cylinder set with
Cylinder (3) diameter of nozzle needle lower part is identical, and the height of hollow circuit cylinder set is identical as cylinder (3) height of nozzle needle lower part.
5. containing the nitrogen evaporator of special nozzle needle according to claim 3, which is characterized in that the hardness of the rubber material is
60A±5A。
6. containing the nitrogen evaporator of special nozzle needle according to claim 1, which is characterized in that the nitrogen containing special nozzle needle is blown
The centrifuge tube (4) of instrument, the body diameter that can be greater than nozzle needle lower part with internal diameter matches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820813566.XU CN208399249U (en) | 2018-05-29 | 2018-05-29 | A kind of nitrogen evaporator containing special nozzle needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820813566.XU CN208399249U (en) | 2018-05-29 | 2018-05-29 | A kind of nitrogen evaporator containing special nozzle needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208399249U true CN208399249U (en) | 2019-01-18 |
Family
ID=65134072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820813566.XU Active CN208399249U (en) | 2018-05-29 | 2018-05-29 | A kind of nitrogen evaporator containing special nozzle needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208399249U (en) |
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2018
- 2018-05-29 CN CN201820813566.XU patent/CN208399249U/en active Active
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