CN204255741U - The uniform controllable type Nitrogen evaporator of a kind of air feed - Google Patents
The uniform controllable type Nitrogen evaporator of a kind of air feed Download PDFInfo
- Publication number
- CN204255741U CN204255741U CN201420772676.8U CN201420772676U CN204255741U CN 204255741 U CN204255741 U CN 204255741U CN 201420772676 U CN201420772676 U CN 201420772676U CN 204255741 U CN204255741 U CN 204255741U
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- Prior art keywords
- mozzle
- air feed
- blow needle
- nitrogen evaporator
- controllable type
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Abstract
The utility model discloses the uniform controllable type Nitrogen evaporator of a kind of air feed, the output terminal of described inlet pipe connection is connected with air distributing device, described air distributing device is arranged at the middle part of mozzle backboard, mozzle backboard is offered several plenum duct be connected with branch mozzle, gas flow controller correspondence is arranged at plenum duct place; Described mass-flow gas meter is arranged on the inlet end of branch's mozzle, and mass-flow gas meter is connected with control circuit board circuit; Base is provided with LCDs, and control circuit board is connected with LCDs circuit.The mode of air feed in the middle of the utility model adopts, achieve air feed more even, in addition, adopt mass flowmeter, flow velocity for gas realizes totally digitilized display and control, for test provides safe and reliable digit basis, be beneficial to choosing of the different tests condition that on market, different requirement, different types of sample need.
Description
Technical field
The utility model relates to the uniform controllable type Nitrogen evaporator of a kind of air feed, particularly relates to a kind of nitrogen for sample concentration and purges instrument, belong to sample concentration device technique field.
Background technology
Sample concentration is the problem that each chemical laboratory will relate to.In the past, Rotary Evaporators was mainly adopted to concentrate, but, adopt Rotary Evaporators to carry out concentrated shortcoming obvious: concentrated speed is slow, and troublesome poeration, is especially not suitable for low-volume samples.In the case, Nitrogen evaporator arises at the historic moment, it not only solves all shortcomings adopting Rotary Evaporators, be particularly useful for samples multiple in a small amount, and for the sample even needing cooling concentration of not ability mouth heat, Nitrogen evaporator then can only be used especially to concentrate, and therefore, what Nitrogen evaporator became each chemical laboratory must join instrument.
Nitrogen dries up instrument (Termovap Sample Concentrator) and is also called: nitrogen enrichment facility, nitrogen purge instrument, and nitrogen blows concentrating instrument, is called for short: Nitrogen evaporator, nitrogen flushing instrument, for the sample preparation in liquid phase, gas phase and mass spectrophotometry.Because nitrogen is a kind of inactive gas, the effect of starvation can be played, anti-oxidation.Nitrogen rapidly, continuously, is controllably blown to heated sample surface by Nitrogen evaporator, realize the rapid concentration of a large amount of sample, have save time, easy to operate, hold manageable feature, can be very fast obtain expected results, therefore, Nitrogen evaporator is widely used in the industries such as farming residual analysis, commodity inspection, food, environment, pharmacy, biological products.
Usually, Nitrogen evaporator by heating arrangement, sample positioning device and feeder three part form.Nitrogen is blown into through the gas blow pipe of feeder and is fixed on sample positioning device and is placed in the sampling receptacle of heating arrangement, and the organic solvent in sampling receptacle in sample is volatilized rapidly, thus it is concentrated to realize sample.Also there is following weak point in current Nitrogen evaporator:
1., before nitrogen enters blow needle, gas is sent into inlet suction port from the bottom of Nitrogen evaporator device by feeder.As a rule, existing Nitrogen evaporator is all enter from one end of the vent board of inlet suction port, then in vent board, enters blow needle passage one by one.This mode, easily cause that the air-flow between each blow needle passage is not of uniform size to be caused, passage air-flow close to air intake opening is larger, air-flow away from air intake opening end is minimum, finally cause the progress of each passage during processing sample inconsistent, affect the comparability of same batch sample, even test findings is impacted;
2. the flow for the nitrogen entered from blow needle passage needs to be concentrated product to regulate and control according to different, and at present, the mode controlling flow mainly uses tensimeter or spinner-type flowmeter.All there is the low defect of precision comparison in tensimeter and spinner-type flowmeter, can not provide a digit basis accurately and reliably, can have influence on the net result of test to test.
Summary of the invention
The purpose of this utility model is: for above-mentioned Problems existing, there is provided a kind of air feed uniform controllable type Nitrogen evaporator, solve the technical matters that existing Nitrogen evaporator air feed is even not, flow control is not good, thus can effectively solve the shortcoming existed in above-mentioned prior art.
The technical solution of the utility model is achieved in that the uniform controllable type Nitrogen evaporator of a kind of air feed, comprise base, inlet pipe connection, gas flow controller, branch's mozzle, air distributing device, control circuit board and mass-flow gas meter, the output terminal of described inlet pipe connection is connected with air distributing device, described air distributing device is arranged at the middle part of mozzle backboard, mozzle backboard is offered several plenum duct be connected with branch mozzle, gas flow controller correspondence is arranged at plenum duct place; Described mass-flow gas meter is arranged on the inlet end of branch's mozzle, and mass-flow gas meter is connected with control circuit board circuit; Base is provided with LCDs, and control circuit board is connected with LCDs circuit.
As a kind of optimal way, the uniform controllable type Nitrogen evaporator of air feed described in the utility model, the inlet pipe connection of air distributing device inflow point is provided with flowrate control valve.
As a kind of optimal way, the uniform controllable type Nitrogen evaporator of air feed described in the utility model, also comprises blow needle, and blow needle is fixed on the blow needle fixed head vertical with mozzle backboard.
As a kind of optimal way, the uniform controllable type Nitrogen evaporator of air feed described in the utility model, described base is provided with sample bore, and described blow needle is corresponding with the position of sample bore.
As a kind of optimal way, the uniform controllable type Nitrogen evaporator of air feed described in the utility model, the inlet pipe connection of air distributing device inflow point is provided with flowrate control valve.
As a kind of optimal way, the uniform controllable type Nitrogen evaporator of air feed described in the utility model, also comprise blow needle, bracing frame and mozzle backboard, support frame as described above is vertically fixed on the rear portion of base, mozzle backboard slides and is arranged on bracing frame, and blow needle is fixed on the blow needle fixed head vertical with mozzle backboard; Described base is provided with sample bore, and described blow needle is corresponding with the position of sample bore.
The plenum system of air distributing device is from middle air inlet, progressively spread to the two ends of mozzle backboard afterwards, the advantage of such improvement is: the gas size homogeneity of each passage is good, the sample of same batch is closer to synchronously completing, both for test provides the reliable condition of paired observation, turn improve the efficiency of test, the personnel that save constantly come and go the time of observing sampling.
Compared with prior art, the beneficial effects of the utility model: air feed described in the utility model uniform controllable type Nitrogen evaporator simple and reasonable for structure, by the improvement for structure, the mode of air feed in the middle of adopting, solve the homogeneity question of gas, achieve air feed more even, the contrast test being convenient to same batch sample is observed, and also improves the efficiency of test simultaneously; In addition, adopt mass flowmeter, the flow velocity for gas realizes totally digitilized display and control, for test provides safe and reliable digit basis, is beneficial to choosing of the different tests condition that on market, different requirement, different types of sample need.
Accompanying drawing explanation
Fig. 1 is the perspective view of the utility model Nitrogen evaporator.
Fig. 2 is the side structure schematic diagram of the utility model Nitrogen evaporator.
Fig. 3 is the schematic rear view of the mozzle backboard of the utility model Nitrogen evaporator.
Mark in figure: base-1, sample bore-3, inlet pipe connection-4, blow needle fixed head-5, mozzle backboard-6, bracing frame-7, gas flow controller-9, branch's mozzle-10, blow needle-11, LCDs-12, flowrate control valve-13, control circuit board-16, air distributing device-24.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model technology is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1, Figure 2, Figure 3 shows, embodiment 1:
The uniform controllable type Nitrogen evaporator of a kind of air feed, comprises base 1, bracing frame 7, mozzle backboard 6, inlet pipe connection 4, gas flow controller 9, branch's mozzle 10, blow needle 11, control circuit board 16 and air distributing device 24.Support frame as described above 7 is vertically fixed on the rear portion of base 1, mozzle backboard 6 slides and is arranged on bracing frame 7, blow needle 11 is fixed on the blow needle fixed head 5 vertical with mozzle backboard 6, described base 1 is provided with sample bore 3, described blow needle 11 is corresponding to the position of sample bore 3 being blown into gas from blow needle, concentrates the sample in sample bore 3.
The output terminal of described inlet pipe connection 4 is connected with air distributing device 24, and described air distributing device 24 is arranged at the middle part of mozzle backboard 6.The inlet pipe connection 4 of air distributing device 24 inflow point being provided with flowrate control valve 13, for controlling the flow of gas in inlet pipe connection 4, preventing flow excessive and accidents caused.Mozzle backboard 6 is offered several plenum duct be connected with branch mozzle 10, gas flow controller 9 correspondence is arranged at plenum duct place, a corresponding plenum duct of gas flow controller, can carry out control and the adjustment of air-flow hydraulic pressure so easily to each passage.
The plenum system of air distributing device is from middle air inlet, progressively spread to the two ends of mozzle backboard afterwards, the advantage of such improvement is: the gas size homogeneity of each passage is good, the sample of same batch is closer to synchronously completing, both for test provides the reliable condition of paired observation, turn improve the efficiency of test, the personnel that save constantly come and go the time of observing sampling.
Mass-flow gas meter 9 is connected with control circuit board 16 circuit, the use of mass-flow gas meter is controlled by circuit board, simultaneously, mass-flow gas meter by the signal feedback collected to control circuit board, base 1 is provided with LCDs 12, control circuit board 16 is connected with LCDs 12 circuit, and the data of final mass-flow gas meter collection will reflect intuitively from LCDs.Flow velocity for gas realizes totally digitilized display and control, for test provides safe and reliable digit basis, is more convenient for groping test condition in the scientific research stage, is also more conducive to choosing of the different tests condition that on market, difference requires different types of sample to need.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (5)
1. the uniform controllable type Nitrogen evaporator of air feed, comprise base (1), it is characterized in that: also comprise inlet pipe connection (4), gas flow controller (9), branch's mozzle (10), air distributing device (24), control circuit board (16) and mass-flow gas meter (9), the output terminal of described inlet pipe connection (4) is connected with air distributing device (24), described air distributing device (24) is arranged at the middle part of mozzle backboard (6), mozzle backboard (6) is offered several plenum duct be connected with branch's mozzle (10), described mass-flow gas meter (9) is arranged on the inlet end of branch's mozzle (10), mass-flow gas meter (9) is connected with control circuit board (16) circuit, base (1) is provided with LCDs (12), and control circuit board (16) is connected with LCDs (12) circuit.
2. the uniform controllable type Nitrogen evaporator of air feed according to claim 1, is characterized in that: also comprise blow needle (11), blow needle (11) is fixed on the blow needle fixed head (5) vertical with mozzle backboard (6).
3. the uniform controllable type Nitrogen evaporator of air feed according to claim 2, it is characterized in that: described base (1) is provided with sample bore (3), described blow needle (11) is corresponding with the position of sample bore (3).
4. the uniform controllable type Nitrogen evaporator of air feed according to claim 1, is characterized in that: on the inlet pipe connection (4) of air distributing device (24) inflow point, be provided with flowrate control valve (13).
5. according to the described uniform controllable type Nitrogen evaporator of air feed arbitrary in claim 1-4, it is characterized in that: also comprise blow needle (11), bracing frame (7) and mozzle backboard (6), support frame as described above (7) is vertically fixed on the rear portion of base (1), and mozzle backboard (6) slip is arranged at the upper blow needle (11) of bracing frame (7) and is fixed on the blow needle fixed head (5) vertical with mozzle backboard (6); Described base (1) is provided with sample bore (3), and described blow needle (11) is corresponding with the position of sample bore (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420772676.8U CN204255741U (en) | 2014-12-10 | 2014-12-10 | The uniform controllable type Nitrogen evaporator of a kind of air feed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420772676.8U CN204255741U (en) | 2014-12-10 | 2014-12-10 | The uniform controllable type Nitrogen evaporator of a kind of air feed |
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| Publication Number | Publication Date |
|---|---|
| CN204255741U true CN204255741U (en) | 2015-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420772676.8U Expired - Fee Related CN204255741U (en) | 2014-12-10 | 2014-12-10 | The uniform controllable type Nitrogen evaporator of a kind of air feed |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107700269A (en) * | 2017-10-27 | 2018-02-16 | 浙江荣晟环保纸业股份有限公司 | A kind of slurry concentration adjusting means of paper making equipment |
-
2014
- 2014-12-10 CN CN201420772676.8U patent/CN204255741U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107700269A (en) * | 2017-10-27 | 2018-02-16 | 浙江荣晟环保纸业股份有限公司 | A kind of slurry concentration adjusting means of paper making equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150408 Termination date: 20171210 |
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| CF01 | Termination of patent right due to non-payment of annual fee |