CN206601283U - A kind of closed nitrogen blows automatics - Google Patents
A kind of closed nitrogen blows automatics Download PDFInfo
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- CN206601283U CN206601283U CN201720040881.9U CN201720040881U CN206601283U CN 206601283 U CN206601283 U CN 206601283U CN 201720040881 U CN201720040881 U CN 201720040881U CN 206601283 U CN206601283 U CN 206601283U
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- nitrogen
- metal bath
- sample
- temperature
- blows
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Abstract
Automatics, including control zone, control box, metal bath are blown the utility model discloses a kind of closed nitrogen.Control zone includes including switch, LCDs, nitrogen temperature display, temperature indicator, gas flowmeter, flow regulation button on air inlet, semiconductor fire-bar, air spring and control panel, control panel.Control box includes air distribution system, operation door, handle, sealing magnetic stripe.Air distribution system includes breather pipe, glue flexible pipe, gas flowmeter probe, nitrogen blow needle, sliding rack, gear, sliding block.Metal bath includes sample standing groove, slide rail, thermal insulation rubber strip.Sample cell is placed on sample standing groove, and metal bath gives sample heating, and control panel can set nitrogen temperature, and nitrogen blows the time, metal bath temperature and storage temperature.The utility model has the sample standing groove of two kinds of models, can for a long time preserve sample with heated nitrogen.Automation equipment can improve operating efficiency, shorten the sample concentration time, reduce experimental error.
Description
Technical field
The utility model belongs to sample concentration device field in liquid phase, gas phase and mass spectral analysis, and in particular to a kind of nitrogen
Purge instrument.
Background technology
Sample concentration is the problem of many chemical laboratories are directed to, and can use Rotary Evaporators or freeze drier
Concentrated.Rotary Evaporators quickly can do distillation processing to various samples, be especially suitable for those unfamiliar operations
Person uses.Have the disadvantage that loss amount is big, easy bumping, it is impossible to a small amount of sample concentration.Freeze drier can keep lyophilized sample
The rehydration of product, and the integrality of sample can be kept to greatest extent, structure organization is not destroyed.Having the disadvantage can not be to organic molten
Agent is concentrated, and the aggressive solvent such as strong acid and strong base is easily destroyed equipment.In the case, nitrogen evaporator arises at the historic moment, and it can
Solve the shortcoming of Rotary Evaporators and freeze drier.
Nitrogen is a kind of inactive gas, can play a part of starvation, prevent sample oxidation.Nitrogen evaporator is applied to
The concentration of a small amount of multiple samples, is that nitrogen rapidly, continuously, is controllably blown to heating sample surfaces, realizes the fast of a large amount of samples
Speed concentration, with it is time saving, easy to operate, be easily controlled the characteristics of, can be quickly obtain expected results, therefore, nitrogen evaporator quilt
It is widely used in the industries such as farming residual analysis, commodity inspection, food, environment, pharmacy, biological products.
Existing nitrogen evaporator is made up of heater, sample positioning device and the part of feeder three.Nitrogen is filled by supply
The gas blow pipe put is blown into the shuttle for being fixed on sample positioning device and being placed in heater, makes sample in shuttle
In organic solvent volatilize rapidly, so as to realize the concentration to sample.Also there is following weak point in current nitrogen evaporator：
1. existing nitrogen blowing apparatus nitrogen blows less efficient, can only once blow 8-10 sample, and only a kind of model plus
Thermal., it is necessary to which manual adjustment device is loaded after nitrogen blows, the error for being easily caused same batch sample is big, or even to examination
Result is tested to impact.It can not realize that the nitrogen of Multi-example blows automation simultaneously, and nitrogen blows rear sample and can not preserved for a long time.
2. for heater, existing instrument is either no preheating system or is individually to install a heating additional
Device.If without preheating system, gas at normal temperature in experimentation consumption than larger, it may be necessary to time compare
Long, test efficiency is lower.The device that existing instrument is not heated to nitrogen, hot nitrogen can improve nitrogen and blow efficiency.
Utility model content
The purpose of this utility model is that provides a kind of novel automatic nitrogen evaporator to solve the above problems.
Connection control zone above a kind of nitrogen blowing apparatus, including control zone, control box, metal bath, control box, lower section connection gold
Category bath.Control zone passes through control panel control operation case, metal bath.Include air inlet, semiconductor heat block, air on control zone
Spring and control panel, air inlet are connected to the back side of control zone, and semiconductor heat block is arranged at air inlet, air spring position
Surface in control zone, control panel is located at the front of control zone.Include switch, LCDs, temperature on control panel
Spend display, nitrogen temperature display, gas flowmeter, flow regulation button.Control box include air distribution system, operation door,
Hand, sealing magnetic stripe, handle are connected on the left of operation door, and sealing magnetic stripe is arranged on the surrounding of operation door, and air distribution system is arranged on behaviour
Make the left and right sides inside case.Air distribution system include breather pipe, glue flexible pipe, gas flowmeter probe, nitrogen blow needle, sliding rack,
Gear, sliding block, gas flowmeter probe are arranged at the ventilation mouth of pipe, breather pipe connection glue flexible pipe, and glue flexible pipe connection nitrogen blow needle is sliding
Carry-over bar top connects gear, bottom connection sliding block.In the sliding rack, sliding block and metal bath that control box passes through air distribution system
Slide rail is connected, and air distribution system is arranged on above metal bath, and the sliding rack and sliding block of air distribution system can control air distribution system
It is vertical to roll and level slip, reach the effect automatically controlled.Metal bath includes sample standing groove, slide rail, thermal insulation rubber strip, every
Warm rubber strip is arranged on metal bath, the both sides connecting sliding rail of metal bath.
As preferred scheme of the present utility model, air inlet is connected with semiconductor heat block, control panel can set whether
To nitrogen heating and heating-up temperature, hot nitrogen can improve nitrogen and blow efficiency.
As preferred scheme of the present utility model, sliding rack and sliding block on air distribution system can control air distribution system
It is vertical to slide and level slip, reach the effect automatically controlled.The Automation Design substantially increases operating efficiency, shortens sample
Time needed for concentration.
There are two kinds of different dress templates number, a nitrogen, which blows, can at least prepare 4 50mL samples or 6 10mL samples, 50mL
Cuvette groove can prepare 32 samples, and 10mL cuvette grooves can prepare 48 samples.
As preferred scheme of the present utility model, each column sample standing groove has an independent metal bath heating, can be with
Set nitrogen blow after storage temperature, sample is protected for a long time.According to the number of the sample nitrogen temperature different with solution concentration setting, nitrogen
Blow the time, metal bath temperature, storage temperature.
As preferred scheme of the present utility model, operation door surrounding is installed with sealing magnetic stripe, and nitrogen can set low temperature after blowing
Preserve, after whole nitrogen blowing beams, air spring can be closed automatically, sample can be preserved for a long time full of nitrogen in device.
Brief description of the drawings
Fig. 1 is a kind of structural representation of new nitrogen evaporator described in the utility model.
Fig. 2 is the structural representation of the present embodiment air distribution system.Air distribution system 20 includes breather pipe 19, glue flexible pipe 26, gas
Flowmeter body probe 25, nitrogen blow needle 16, sliding rack 17, gear 18, sliding block 15.
Fig. 3 is this example control panel profile.Including conductor temperature probe 27, three-way pipe 28, air spring 24.
Fig. 4 is this example metal bath structural representation.Metal bath 11 includes thermal insulation rubber strip 8, sample standing groove 9, slide rail
10。
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings：
As shown in figure 1, a kind of novel automatic nitrogen evaporator, it is characterised in that：Control panel 7, control box 21, metal bath
11.On control panel 7 include switch 5, temperature indicator 1, nitrogen temperature display 2, LCDs 3, gas flowmeter 4,
Flow regulation button 6, surface have air spring 24.Control box 21 includes air distribution system 20, operation door 12, handle 13, sealing
Magnetic stripe 14.Air distribution system 20 includes breather pipe 19, glue flexible pipe 26, gas flowmeter probe 25, sliding block 15, nitrogen blow needle 16, slip
Rack 17, gear 18.Metal bath 11 be arranged on control box 21 below, metal bath 11 include thermal insulation rubber strip 8, sample standing groove 9,
Slide rail 10.
Embodiment 1 is in said structure, starting switch 5, opening operation door 12, and metal bath 11 is preheating in advance and specifies temperature
Degree, nitrogen blows 5 minutes the air emptying in control box 21.Sample cell is placed on sample standing groove 9, the temperature of each column metal bath 11
Can the display in real time successively on temperature indicator 1.Nitrogen heating-up temperature is set on control panel 7, and nitrogen temperature can be in nitrogen
Shown on temperature indicator 2, set each row's metal bath temperature, nitrogen blows the time, nitrogen blows row, nitrogen blow after storage temperature, most
Low temperature is 4 DEG C.50mL sample standing groove 9 is that 8 nitrogen blow needles of a row, 16,4 nitrogen blow needles 16 are gentle by a point of air inlet
Flowmeter body 4 is controlled, 10mL sample standing groove 9 be 12 nitrogen blow needles of a row, 16,6 nitrogen blow needles 16 by a point of air inlet and
Gas flowmeter 4 is controlled.Total nitrogen is passed through by air inlet 23, and sample, gas stream are blowed to via the nitrogen blow needle 16 of air distribution system 20
Amount can be adjusted by flow adjustment knob 6, can control the nitrogen flow rate and switch of each sample, and real-time traffic can be shown in gas stream
On gauge 4.After control panel 7 is set, air distribution system 20 starts to start, and gear 18 is scrolled down through, and nitrogen blow needle 16 drops to finger
Fixed position, indicates that nitrogen blows according to setting.After one denitrogen blowing beam, sliding rack 17 and gear 18 interact, air distribution system
20 rise, while sliding block 15 can be slid rearwardly on the position that next row is specified, the nitrogen for starting next row blows.Whole blowing structure
All carried out in control box 20, internal gas can be by the row of air spring 24 outwardly, after whole nitrogen blowing beams, air spring
24 can close automatically, keep nitrogen filling in control box 21.
As preferred scheme of the present utility model, it can improve nitrogen with heated nitrogen and blow efficiency.Each row sample standing groove is set
Put the heating of single metal bath and nitrogen blow after storage temperature.The sample standing groove of two kinds of different models is set and sample is placed
Quantity is big, realizes that high-volume automation nitrogen blows by the setting of gear and slide rail.Air bullet can be controlled by microelectronics design
The switch of spring, increases the time for preserving sample.
General principle of the present utility model, principal character and advantage has been shown and described above.The utility model also has
Various changes and modifications, these changes and improvements are both fallen within the range of claimed the utility model.
Using the utility model, according to step described in embodiment 1, omethoate pesticide residual content in tealeaves is examined
Survey, compareed with common nitrogen evaporator.12 samples, carry out 3 repetitions and test, investigate the utility model good effect.
1 two kinds of device nitrogen of table blow results contrast.
Note：RSD is relative standard deviation, and different upper case and lower case alphabets represent component in P ＜ 0.01 and P ＜ respectively
0.05 horizontal significant difference.The utility model nitrogen heating-up temperature is 40 DEG C, and 50 DEG C of metal bath temperature a, nitrogen blows 12 samples
And nitrogen blew the time for 1 hour, Sample storage temperature is 4 DEG C.12 samples are blown using common nitrogen of nitrogen evaporator and nitrogen blows the time
For 2 hours；Sample moisture content is determined with anhydrous cupric sulfate.
As shown in Table 1, substantially reduce nitrogen using the utility model to blow the time, improve sample purity.In addition, this practicality is new
Type only needs to sample-adding and once just realizes Automated condtrol, and control group needs three times and the preservation that can not cool of sample-adding manually.Further,
The utility model in whole experiment process all samples nitrogen blows all under identical conditions, error is small between sample.
Claims (5)
1. a kind of closed nitrogen blows automatics, it is characterised in that：Including control zone, control box, metal bath；Connect above control box
Connect control zone, lower section connection metal bath；Control zone passes through control panel control operation case, metal bath；Include air inlet on control zone
On mouth, semiconductor heat block, air spring and control panel, control panel install switch, LCDs, temperature indicator,
Nitrogen temperature display, gas flowmeter, flow regulation button；Control box includes air distribution system, operation door, handle, sealing magnetic
Bar；Air distribution system includes breather pipe, glue flexible pipe, gas flowmeter probe, nitrogen blow needle, sliding rack, gear, sliding block；Distribution system
System is arranged on above metal bath, the slide rail connection in sliding rack, sliding block and the metal bath of air distribution system；Metal bath is arranged on behaviour
Make below case, sample standing groove, slide rail, thermal insulation rubber strip are installed in metal bath.
2. a kind of closed nitrogen as claimed in claim 1 blows automatics, it is characterised in that：Air inlet is connected with semiconductor heating
Whether block, control panel can be set to nitrogen heating and heating-up temperature, and hot nitrogen can improve nitrogen and blow efficiency.
3. a kind of closed nitrogen as claimed in claim 1 blows automatics, it is characterised in that：The sliding rack of air distribution system and
Sliding block can control the vertical rolling of air distribution system and level to slide, and reach that automatic nitrogen blows effect.
4. a kind of closed nitrogen as claimed in claim 1 blows automatics, it is characterised in that：There are two kinds of models on metal bath
Sample standing groove, each column sample standing groove has an independent metal bath heating, can set after metal bath temperature and nitrogen blows
Storage temperature；Blown the time according to the nitrogen number of sample is different with solution concentration setting, metal bath temperature and storage temperature.
5. a kind of closed nitrogen as claimed in claim 1 blows automatics, it is characterised in that：Operate door surrounding sealing magnetic stripe
Install, after whole nitrogen blowing beams, air spring can be closed automatically, sample can be preserved for a long time full of nitrogen in device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720040881.9U CN206601283U (en) | 2017-01-13 | 2017-01-13 | A kind of closed nitrogen blows automatics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720040881.9U CN206601283U (en) | 2017-01-13 | 2017-01-13 | A kind of closed nitrogen blows automatics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206601283U true CN206601283U (en) | 2017-10-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720040881.9U Expired - Fee Related CN206601283U (en) | 2017-01-13 | 2017-01-13 | A kind of closed nitrogen blows automatics |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206601283U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109297802A (en) * | 2018-11-16 | 2019-02-01 | 四川临界自动化设备有限公司 | Multifunctional in-situ specimen heating holder |
| CN113252820A (en) * | 2021-04-20 | 2021-08-13 | 品测(上海)检测科技有限公司 | Method for detecting content of beta-carotene in grease and nitrogen blowing device |
-
2017
- 2017-01-13 CN CN201720040881.9U patent/CN206601283U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109297802A (en) * | 2018-11-16 | 2019-02-01 | 四川临界自动化设备有限公司 | Multifunctional in-situ specimen heating holder |
| CN109297802B (en) * | 2018-11-16 | 2024-01-30 | 四川临界自动化设备有限公司 | Multifunctional in-situ heating sample stage |
| CN113252820A (en) * | 2021-04-20 | 2021-08-13 | 品测(上海)检测科技有限公司 | Method for detecting content of beta-carotene in grease and nitrogen blowing device |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171031 Termination date: 20190113 |
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| CF01 | Termination of patent right due to non-payment of annual fee |