CN110274814B - Automatic nitrogen blowing instrument - Google Patents
Automatic nitrogen blowing instrument Download PDFInfo
- Publication number
- CN110274814B CN110274814B CN201910662571.4A CN201910662571A CN110274814B CN 110274814 B CN110274814 B CN 110274814B CN 201910662571 A CN201910662571 A CN 201910662571A CN 110274814 B CN110274814 B CN 110274814B
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- China
- Prior art keywords
- test tube
- tube
- conical
- nitrogen blowing
- fixing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 117
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 57
- 238000007664 blowing Methods 0.000 title claims abstract description 46
- 238000012360 testing method Methods 0.000 claims abstract description 69
- 239000007788 liquid Substances 0.000 claims abstract description 41
- 239000002699 waste material Substances 0.000 claims abstract description 13
- 239000012085 test solution Substances 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000011888 foil Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 239000003153 chemical reaction reagent Substances 0.000 description 5
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 229910001873 dinitrogen Inorganic materials 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/40—Concentrating samples
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/40—Concentrating samples
- G01N1/4022—Concentrating samples by thermal techniques; Phase changes
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention relates to the field of chemical analysis devices, in particular to an automatic nitrogen blowing instrument. Including toper test tube, waste liquid collecting box, support, mobile mechanism, the waste liquid collecting box sets up in the support rear portion, the support roof is passed by 3 pipelines, 3 pipelines can rotate, 3 pipelines are nitrogen blowing pipe, constant volume pipe, calibration pipe in proper order, the support roof is connected to the bottom surface fixed plate by 2 spinal branch daggers, and the guiding axle passes mobile mechanism's movable plate and the both ends of guiding axle respectively with support roof and bottom surface fixed plate fixed connection, ball screw one with the movable plate cooperation is connected, motor one is fixed to be set up movable plate upper portion, and conical gear two with conical gear one cooperation is connected. The automatic nitrogen blowing device realizes automatic nitrogen blowing, constant volume and calibration, avoids larger errors caused by manual nitrogen blowing of an experimenter, can improve efficiency, and has good environmental protection effect. Has potential market value.
Description
Technical Field
The invention relates to the field of chemical analysis devices, in particular to an automatic nitrogen blowing instrument.
Background
In general, the nitrogen blowing instrument is composed of a heating device, a sample fixing device and a gas supply device. After the nitrogen passes through the air supply device, the nitrogen is blown into the sample container fixed in the sample fixing device through the air duct, so that the organic solvent in the sample container volatilizes rapidly, and the concentration of the sample is realized.
When carrying out analysis and measurement in fields such as food, environment, need carry out nitrogen gas and sweep concentrated extract, nitrogen gas blows the device to be mostly test tube and nitrogen blowing pipe relative position motionless on the market at present, need the inspector to observe at any time and adjust the height of nitrogen blowing pipe at nitrogen blowing in-process, the flow of adjustment nitrogen gas. In the process, the phenomenon of blowing and drying the nitrogen blowing solvent is easy to occur, and the volatile organic solvents (n-hexane, methanol and the like) in the nitrogen blowing process are harmful to human bodies.
Disclosure of Invention
In order to solve the defects of artificial nitrogen blowing in the background technology, the invention discloses an automatic nitrogen blowing instrument.
In order to achieve the above object, the present invention provides the following technical solutions:
the utility model provides an automatic nitrogen blows appearance, includes toper test tube, waste liquid collecting box, support, mobile mechanism, the waste liquid collecting box sets up in the support rear portion, the support roof is passed by 3 pipelines, 3 pipelines can rotate, 3 pipelines are nitrogen blow pipe, constant volume pipe, calibration pipe in proper order, the support roof is connected to the bottom surface fixed plate by 2 spinal branch daggers, and the guiding axle passes mobile mechanism's movable plate and the both ends of guiding axle respectively with support roof and bottom surface fixed plate fixed connection, ball first with the movable plate cooperation is connected, ball first's both ends respectively fixed connection support roof and bottom surface fixed plate, ball first is connected with conical gear, conical gear second is connected with motor first, motor first fixed setting is in movable plate upper portion, and conical gear second with conical gear first cooperation is connected, the movable plate is provided with the track, moving mechanism's test tube mount is followed orbital motion, the bottom of mount is provided with the heating box, the bottom surface of heating box with the motor cooperation, second is passed by two fixed ball fixed connection by the fixed frame on the ball.
Further, the ultrasonic liquid level meter is arranged at the top of the conical test tube and is fixedly connected with the fixing frame.
Further, the model of the ultrasonic liquid level meter is NU200F18TR-I-300.
Further, the ultrasonic liquid level meter is electrically connected with the electric control box, and the first motor and the second motor are electrically connected with the electric control box.
Further, an automatic nitrogen blowing instrument further comprises the following steps:
the first step, the conical test tube moves to the lower part of the right nitrogen blowing tube, the conical test tube moves upwards to the position, away from the liquid level of the liquid in the conical test tube, of the pipe orifice end of the nitrogen blowing tube by 0.8-1.2 cm, the nitrogen blowing tube works to blow nitrogen, and the conical test tube moves upwards to the position, away from the liquid level of the liquid in the conical test tube, of the pipe orifice end of the nitrogen blowing tube by 0.8-1.2 cm;
step two, after nitrogen blowing work is completed, the conical test tube is lowered, the conical test tube moves to the lower part of the constant volume tube, and the constant volume tube is used for fixing the volume of the test solution in the conical test tube;
step three, when different test solutions are used for fixing the volume in the conical test tube, the volume fixing tube is rotated to enable the tube orifice of the volume fixing tube to face the waste liquid collecting box, and the volume fixing tube is cleaned by the test solution with the required volume fixing;
step four, the conical test tube moves to the lower part of the calibration tube, and the calibration tube calibrates the test solution in the conical test tube;
and fifthly, moving the conical test tube to the leftmost end, and covering aluminum foil paper for sealing.
The invention has the beneficial effects that:
1. the automatic nitrogen blowing instrument provided by the invention realizes automatic nitrogen blowing, constant volume and calibration, avoids larger errors caused by manual nitrogen blowing by an inspector, avoids harm to human bodies caused by volatile substances, can improve the efficiency, and is more environment-friendly in use of the waste liquid collecting box.
2. According to the automatic nitrogen blowing instrument, the automatic nitrogen blowing process is completed by moving the conical test tube through the fixed pipeline innovatively, and compared with the structure that the test tube is fixed and the air supply device is changed, the automatic nitrogen blowing instrument is more cost-saving and convenient to maintain.
Drawings
FIG. 1 is a schematic perspective view of an automatic nitrogen blower;
FIG. 2 is a schematic view of the structure of an automatic nitrogen blower with a reagent bottle attached to a conical test tube;
fig. 3 is a circuit block diagram of an automatic nitrogen blowing instrument.
Detailed Description
In order to make the present invention more clear and obvious to those skilled in the art, the following detailed description of the present invention is provided with reference to the accompanying drawings, but the embodiments of the present invention are not limited thereto.
1-3, an automatic nitrogen blowing instrument comprises a conical test tube 1, a waste liquid collecting box 2, a bracket 3, a moving mechanism 4 and an electric cabinet 6, wherein the waste liquid collecting box 2 is arranged at the rear part of the bracket 3, a bracket top plate 31 is penetrated by 3 pipelines, the 3 pipelines can rotate, the 3 pipelines are a nitrogen blowing pipe 32, a constant volume pipe 33 and a calibration pipe 34 in sequence, and when the pipelines need to be cleaned, the pipelines are rotated to enable the pipe orifices of the pipelines to be aligned with the waste liquid collecting box 2, and the automatic nitrogen blowing instrument can be cleaned by using a test solution; the support top plate 31 is connected to the bottom surface fixing plate 36 by 2 support columns 35, the guide shaft 37 passes through the moving plate of the moving mechanism, two ends of the guide shaft 37 are respectively and fixedly connected with the support top plate 31 and the bottom surface fixing plate 36, the ball screw I41 is in fit connection with the moving plate 42, two ends of the ball screw I41 are respectively and fixedly connected with the support top plate 3 and the bottom surface fixing plate 36, the ball screw I41 is connected with a first conical gear 43, a second conical gear 44 is connected with a first motor 450, the first motor 450 is fixedly arranged on the upper part of the moving plate 42, the second conical gear 44 is in fit connection with the first conical gear 43, the conical gear is used for changing the moving direction, the first motor 450 drives a pair of conical gears, and the first conical gear 43 drives the ball screw I41 to move up and down the moving plate 42; the moving plate 42 is provided with a track 46, a test tube fixing frame 47 of the moving mechanism 4 moves along the track 46, a heating box 48 is arranged at the bottom of the test tube fixing frame 47, a heating wire is arranged in the heating box 48 and is electrically connected with the electric cabinet 6, the bottom surface of the heating box 48 is matched with the track 46, the heating box 48 is penetrated by a ball screw II 49, the ball screw II 49 is connected with a motor II 451, the motor II 451 is fixedly arranged on the upper portion of the moving plate 42, the motor II 451 drives the ball screw II 49, the ball screw II 49 drives the heating box 48 to realize the left-right movement of the conical test tube 1, the conical test tube 1 is fixed inside the test tube fixing frame 47 of the moving mechanism 4, and two fixing hoops 470 for fixing the conical test tube 1 by the test tube fixing frame 47 can be opened to take out the conical test tube 1. The ultrasonic liquid level meter 5 is arranged at the top of the conical test tube 1 and fixedly connected with the test tube fixing frame 47. The model of the ultrasonic liquid level meter 5 is NU200F18TR-I-300. The electric cabinet 6 is arranged on the upper portion of the movable plate 42, the ultrasonic liquid level meter 5 is electrically connected with the electric cabinet 6, and the first motor 450 and the second motor 451 are electrically connected with the electric cabinet 6.
The nitrogen blowing pipe is connected with a first pump 321, the constant volume pipe is connected with a second pump 322, the calibration pipe is connected with a third pump 323, and the first pump 321 is connected with a nitrogen bottle 325 and is electrically connected with the electric cabinet 6; the second pump 322 is connected with a multiple directional control valve 324 and is electrically connected with the electric cabinet 6, the multiple directional control valve 324 is connected with different fixed solution reagent bottles 326, the multiple directional control valve 324 is electrically connected with the electric cabinet 6, and the multiple directional control valve 324 can switch various reagents; the third pump 323 is connected with the calibration liquid reagent bottle 327 and is electrically connected with the electric cabinet 6.
An automatic nitrogen blowing instrument was used for experiments using the following steps:
step one, an electric cabinet 6 controls a motor II 451, the motor II 451 drives a ball screw II 41, the ball screw II 41 drives the conical test tube 1 to move to the lower part of the right nitrogen blowing tube 32, a test tube fixing frame 47 of the conical test tube 1 can be pushed by hand to move the conical test tube 1 to the lower part of the nitrogen blowing tube 1, an ultrasonic liquid level meter 5 identifies the liquid level, the electric cabinet 6 controls the motor I450, the motor I450 controls the ball screw I41 to enable the mouth end of the conical test tube 1 to move upwards to the liquid level of liquid in the conical test tube 1 to be 0.8-1.2 cm away from the liquid in the conical test tube 1, the electric cabinet 6 controls a pump I321, and the nitrogen blowing tube 32 blows nitrogen; under the control of the electric cabinet 6, the conical test tube 1 automatically moves upwards, the liquid level of the liquid in the conical test tube 1 is kept at the pipe orifice end at 0.8-1.2 cm, and the conical test tube 1 can also be manually controlled to move upwards;
step two, the ultrasonic liquid level meter 5 detects the preset liquid level, the electric cabinet 6 controls the pump one 321 and the motor one 450 to stop, the conical test tube 1 automatically descends under the control of the electric cabinet 6 after the nitrogen blowing work is finished, the conical test tube 1 moves to the lower part of the constant volume pipe 33, the conical test tube 1 can also be manually moved to descend, and then the conical test tube 1 is manually controlled to move to the lower part of the constant volume pipe 33.
Step three, when different test solutions are used for fixing the volume in the conical test tube 1, the electric control box 6 controls the multi-way reversing valve 324 to a needed reagent bottle interface, the electric control box 6 controls the pump II 322, the constant volume pipe is rotated to enable the pipe orifice of the constant volume pipe 33 to face the waste liquid collecting box, and the constant volume pipe is cleaned by the test solution with the needed constant volume; the constant volume pipe is turned back to the original position, the constant volume pipe 33 is used for fixing the volume of the test solution in the conical test tube 1, the ultrasonic liquid level meter 5 detects the preset height, and the constant volume is completed;
step four, under the control of the electric cabinet 6, the conical test tube 1 moves to the lower part of the calibration tube 34, and the conical test tube 1 can also be manually controlled to move to the lower part of the calibration tube 34, and the calibration tube 34 calibrates the test solution in the conical test tube 1;
and fifthly, moving the conical test tube 1 to the leftmost end, and covering aluminum foil paper for sealing.
Further, the conical test tube 1 may be replaced by a conventional test tube. Since multiple sets of nitrogen blows are often required during the inspection process, multiple sets of such equipment, e.g., 6, 12, 24 sets, can be used to perform simultaneous operations.
The above description is only of the preferred embodiment of the present invention, and is not intended to limit the invention in any way, and any person skilled in the art may make many possible variations and modifications of the invention using the method and the content disclosed above without departing from the scope of the invention, which is defined in the claims.
Claims (2)
1. An automatic nitrogen blows appearance, its characterized in that: the device comprises a conical test tube, a waste liquid collecting box, a bracket and a moving mechanism, wherein the waste liquid collecting box is arranged at the rear part of the bracket, a bracket top plate is penetrated by 3 pipelines, the 3 pipelines can rotate, the 3 pipelines are a nitrogen blowing pipe, a constant volume pipe and a calibration pipe in sequence, the bracket top plate is connected to a bottom surface fixing plate by 2 supporting columns, a guide shaft penetrates through a moving plate of the moving mechanism, two ends of the guide shaft are respectively fixedly connected with the bracket top plate and the bottom surface fixing plate, a ball screw I is in matched connection with the moving plate, two ends of the ball screw I are respectively fixedly connected with the bracket top plate and the bottom surface fixing plate, a conical gear I is connected with a motor I, the motor I is fixedly arranged at the upper part of the moving plate, the conical gear II is in matched connection with the conical gear I, the moving plate is provided with a track, a test tube fixing frame of the moving mechanism moves along the track, the bottom of the test tube fixing frame is provided with a heating box, the bottom surface of the heating box is matched with the track, the motor II is fixedly connected with the ball screw II, and the ball screw II is fixedly arranged at the inner part of the moving part of the ball screw;
the ultrasonic liquid level meter is arranged at the top of the conical test tube and is fixedly connected with the fixing frame;
the model of the ultrasonic liquid level meter is NU200F18TR-I-300;
the ultrasonic liquid level meter is electrically connected with the electric control box, and the motor I and the motor II are electrically connected with the electric control box.
2. An automatic nitrogen blowing instrument according to claim 1, further comprising the steps of:
the first step, the conical test tube moves to the lower part of the right nitrogen blowing tube, the conical test tube moves upwards to the position, away from the liquid level of the liquid in the conical test tube, of the pipe orifice end of the nitrogen blowing tube by 0.8-1.2 cm, the nitrogen blowing tube works to blow nitrogen, and the conical test tube moves upwards to the position, away from the liquid level of the liquid in the conical test tube, of the pipe orifice end of the nitrogen blowing tube by 0.8-1.2 cm;
step two, after nitrogen blowing work is completed, the conical test tube is lowered, the conical test tube moves to the lower part of the constant volume tube, and the constant volume tube is used for fixing the volume of the test solution in the conical test tube;
step three, when different test solutions are used for fixing the volume in the conical test tube, the volume fixing tube is rotated to enable the tube orifice of the volume fixing tube to face the waste liquid collecting box, and the volume fixing tube is cleaned by the test solution with the required volume fixing;
step four, the conical test tube moves to the lower part of the calibration tube, and the calibration tube calibrates the test solution in the conical test tube;
and fifthly, moving the conical test tube to the leftmost end, and covering aluminum foil paper for sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910662571.4A CN110274814B (en) | 2019-07-22 | 2019-07-22 | Automatic nitrogen blowing instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910662571.4A CN110274814B (en) | 2019-07-22 | 2019-07-22 | Automatic nitrogen blowing instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110274814A CN110274814A (en) | 2019-09-24 |
| CN110274814B true CN110274814B (en) | 2024-02-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910662571.4A Active CN110274814B (en) | 2019-07-22 | 2019-07-22 | Automatic nitrogen blowing instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110274814B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110711617B (en) * | 2019-10-30 | 2020-09-01 | 浙江达普生物科技有限公司 | Heating system for continuous inspection operation |
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|---|---|---|---|---|
| JP2000321289A (en) * | 1999-05-13 | 2000-11-24 | Japan Tobacco Inc | Dispensing apparatus |
| JP2003021583A (en) * | 2001-07-09 | 2003-01-24 | Ebara Corp | Concentrating method for analyzing sample liquid and concentration apparatus therefor |
| CN201819828U (en) * | 2010-08-31 | 2011-05-04 | 潍坊瑞格测试仪器有限公司 | Nitrogen blowing concentrator |
| CN204255739U (en) * | 2014-12-10 | 2015-04-08 | 四川正龙机械设备制造有限公司 | The Nitrogen evaporator that a kind of electric up-down controls |
| CN106442092A (en) * | 2016-11-03 | 2017-02-22 | 睿科仪器（厦门）有限公司 | Drawer device capable of automatically inserting nitrogen-blowing needle into concentration test tube |
| CN206609696U (en) * | 2017-04-06 | 2017-11-03 | 吉林省优尼普瑞科技有限公司 | A kind of nitrogen that cleaning can be quickly dismounted to nitrogen blow needle dries up instrument |
| CN210665239U (en) * | 2019-07-22 | 2020-06-02 | 青岛市产品质量监督检验研究院 | Automatic nitrogen blowing instrument |
-
2019
- 2019-07-22 CN CN201910662571.4A patent/CN110274814B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000321289A (en) * | 1999-05-13 | 2000-11-24 | Japan Tobacco Inc | Dispensing apparatus |
| JP2003021583A (en) * | 2001-07-09 | 2003-01-24 | Ebara Corp | Concentrating method for analyzing sample liquid and concentration apparatus therefor |
| CN201819828U (en) * | 2010-08-31 | 2011-05-04 | 潍坊瑞格测试仪器有限公司 | Nitrogen blowing concentrator |
| CN204255739U (en) * | 2014-12-10 | 2015-04-08 | 四川正龙机械设备制造有限公司 | The Nitrogen evaporator that a kind of electric up-down controls |
| CN106442092A (en) * | 2016-11-03 | 2017-02-22 | 睿科仪器（厦门）有限公司 | Drawer device capable of automatically inserting nitrogen-blowing needle into concentration test tube |
| CN206609696U (en) * | 2017-04-06 | 2017-11-03 | 吉林省优尼普瑞科技有限公司 | A kind of nitrogen that cleaning can be quickly dismounted to nitrogen blow needle dries up instrument |
| CN210665239U (en) * | 2019-07-22 | 2020-06-02 | 青岛市产品质量监督检验研究院 | Automatic nitrogen blowing instrument |
Non-Patent Citations (1)
| Title |
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| 氮吹仪的原理及应用;食品安全导刊;20101215(12);全文 * |
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| Publication number | Publication date |
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| CN110274814A (en) | 2019-09-24 |
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