KR101673530B1

KR101673530B1 - Sample concentrator of excessive concentrate prevention using peltier element

Info

Publication number: KR101673530B1
Application number: KR1020150061310A
Authority: KR
Inventors: 박종범; 강민구
Original assignee: 박종범
Priority date: 2015-04-30
Filing date: 2015-04-30
Publication date: 2016-11-22

Abstract

The present invention relates to a sample concentrator for preventing excessive concentration using a Peltier element and, specifically, to a sample concentrator for preventing excessive concentration using a Peltier element, capable of soundly preserving a concentrated sample by preventing the excessive concentration as the concentrated sample accommodated in the lower part of a test tube is not evaporated and only a solvent in the upper part of the test tube is evaporated in case air or nitrogen is not continuously supplied since the lower part of the test tube is cooled, by including the Peltier element. According to the present invention, the sample concentrator for preventing excessive concentration using the Peltier element controls a square housing including a window capable of observing an inner state in a front door and including a fan discharging the solvent evaporated on the upper side; a test tube fixing unit fixing the multiple test tubes accommodating the sample to be concentrated and installed in the housing, wherein the test tube fixing unit includes at least a Peltier element on the lower surface of the inner side; a shelf installed in the lower part of the test tube fixing unit and formed to slide forward and backward; multiple injection nozzles installed in the upper part of the test tube fixing unit and including each supply tube on one side to inject the nitrogen or the air to the inner side of the test tube; an injection nozzle fixing unit connected to the upper part of the injection nozzle and fixing the injection nozzle; a lifting unit connected to the rear surface of the injection nozzle fixing unit and installed on the rear of the vessel, wherein the lifting unit vertically moves the injection nozzle fixing unit; and a control unit installed in the shelf and the lower part of the lifting unit to support the shelf and the lifting unit and including an operation display window controlling an operation of the sample concentrator.

Description

[0001] The present invention relates to a sample concentrator for preventing excessive concentrate using a peltier element,

The present invention relates to a sample concentrator for preventing excessive concentration using a Peltier element, and more particularly, by providing a Peltier element in a sample concentrator, even when nitrogen or air is continuously supplied at the lower end of a test tube, only the solvent at the upper end of the test tube is evaporated The present invention relates to a sample concentrator for preventing excessive concentration of a concentrated sample contained in a lower portion of a test tube.

Dryers (concentrators) are generally used for drying fabrics, crops and semiconductors in industry, and academically as the most important and basic instrument in the experiment, they are used for testing instruments and for drying (enriching) non-combustible materials.

As a representative example of such a dryer, a hot-air dryer using hot air circulation can be classified into a natural circulation system or a forced circulation system. In the double natural circulation method, when the air is heated, the specific gravity is reduced and the temperature is transferred by the natural convection phenomenon in which the air rises. There is no moving particles in the chamber, and it is used for drying the powder sample requiring clean state . However, such a natural circulation method has a disadvantage that the temperature distribution and precision are inferior.

On the other hand, the forced circulation system uses a fan to forcibly circulate the generated heat of the heater to the inside of the chamber, and the temperature distribution is good and the sample can be dried quickly. However, since the forced air circulation through the fan passes through the heater, the hot air is heated to dry the sample, and then the sample is exhausted through the exhaust port in the upper part of the chamber. The amount of air that has escaped from the exhaust port again There is a problem in that it is not efficient in terms of the heat management structure because the air having moisture should be introduced.

In order to solve the above problems, Korean Patent No. 10-0762370 discloses a method of removing moisture generated during drying of an object to be dried through a dehumidifying means, sending dry air in a moisture-free state to a blower, A drying device for drying an object to be dried by heating the heated air to a drying object and drying the drying object is disclosed. However, this requires a separate stand for a rod type laboratory used for drying a small amount of sample, Even if the stand is provided, the space inside the dryer is dried using the hot air, so that the energy efficiency is lowered. When the humidity inside the dryer reaches the set humidity, the power is shut off. However, The sample concentrated by the hot air can be evaporated, This prevents the shaft had not been made problem.

Korean Registered Patent No. 10-0762370 (September 20, 2007)

The present invention has been made in order to solve the problems of the prior art as described above. By providing the Peltier element in the sample concentrator, even when nitrogen or air is continuously supplied at the lower end of the test tube, only the solvent at the upper end of the test tube is evaporated, The object of the present invention is to provide a specimen concentrator for preventing excessive concentration of a concentrated sample, which can not be evaporated, thereby preventing excessive concentration of the concentrated sample.

In order to achieve the above object, the present invention provides a sample concentrator for preventing excessive concentration of a Peltier element, comprising: a front window having a window for observing an internal state thereof; housing; A test tube fixture provided inside the housing to fix a plurality of test tubes accommodating the sample to be concentrated, the test tube fixture including at least one Peltier element on the inner bottom surface; A shelf provided under the test tube fixture and configured to slide back and forth; A plurality of injection nozzles provided above the test tube fixture and having respective supply tubes at one side thereof for spraying nitrogen or air into the test tube; A spray nozzle fixture coupled to the spray nozzle and fixing the spray nozzle; A raising / lowering port coupled to a rear portion of the spray nozzle fixture and provided behind the shelf to move the spray nozzle fixture up and down; And a control port provided below the shelf and the hatch and provided with an operation display window for supporting the shelf and the hatch and controlling the operation of the sample concentrator.

In the sample concentrator for preventing excessive concentration using the Peltier element according to the present invention as described above, since the Peltier element is provided in the sample concentrator, even when nitrogen or air is continuously supplied at the lower end of the test tube, only the solvent at the upper end of the test tube is evaporated, The concentration of the concentrated sample contained in the sample is not evaporated so that excessive concentration can be prevented and the concentrated sample can be perfectly preserved.

Also, the test tube is a large-capacity test tube containing 150 to 250 ml of sample, and the lower end is formed in a narrower shape than the upper end to form a protrusion at the lower end. In the case of the large-capacity test tube, It is possible to improve the function of collecting the concentrated sample by forming the protrusion at the lower end of the test tube.

In addition, a center slit is formed on the front surface of the test fixture, and a glass window is provided on the front door, so that the sample concentration of all the test tubes can be visually observed while being concentrated.

In addition, the injection nozzle has an injection port at its end, four fine holes are crossed at a position 10 to 15 mm away from the end, and the saturated vapor formed on the inner wall of the test tube is simultaneously dried to shorten the concentration rate .

In addition, the injection nozzle is provided with three injection nozzles for each test tube, thereby reducing the concentration rate of the large capacity test tube.

In addition, since the timer and the Peltier element are provided as means for preventing excessive concentration, it is possible to double the excessive concentration and prevent the excessive concentration.

And a plurality of light emission switches respectively corresponding to the respective injection nozzles and controlling the solenoid valves provided in each of the supply tubes and indicating the operation states of the respective injection nozzles so that the flow rate and the pressure are independently supplied to the respective injection nozzles , There is no interference with the flow rate and pressure between the injection nozzles and can be adjusted individually, so that the loss rate of nitrogen or air is lowered, the injection is uniform, and the supply can be stably performed.

In addition, heat is applied to the inside of the housing from the heating port, and nitrogen or air is supplied from the injection nozzle into the inside of the test tube, thereby simultaneously supplying heat and nitrogen or air, thereby significantly shortening the concentration time and enhancing the concentration efficiency.

Accordingly, the inside of the housing is heated by the heating tool, and the protrusions formed at the lower end of the experimental tube are cooled by the Peltier element, so that the solvent at the upper end of the experimental tube is evaporated, but the concentrated sample contained in the protrusions at the lower end of the experimental tube is not evaporated, There is an effect that the concentration can be prevented and the concentrated sample can be preserved completely.

This means that if the timer is missed or the time is set incorrectly, even if nitrogen or air is continuously supplied, the bottom of the tube is cooled, and the concentrated sample is not evaporated, thereby preventing excessive concentration.

Also, according to the purpose of the experiment, if a high concentration sample is needed, the concentration of the concentrated sample is once again concentrated. In this case, the sample is completely preserved and the double concentration is easy.

1 is a perspective view illustrating a sample concentrator for preventing excessive concentration using a Peltier element according to an embodiment of the present invention.
2 is a front view showing a sample concentrator for preventing excessive concentration using a Peltier element according to an embodiment of the present invention.
3 is a side sectional view showing a sample concentrator for preventing excessive concentration using a Peltier element according to an embodiment of the present invention.
FIG. 4 is a partial perspective view illustrating a test fixture of an excessive concentrating sample concentrator using a Peltier element according to an embodiment of the present invention. FIG.
FIG. 5 is a partial perspective view illustrating a spray nozzle of an excessive concentrating sample concentrator using a Peltier element according to an embodiment of the present invention. FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail. These examples are for further illustrating the present invention, and the scope of rights of the present invention is not limited to these examples.

1 to 5, a sample concentrator for preventing excessive concentration using a Peltier element will be described below.

The sample concentrator for preventing excessive concentration using the Peltier element according to the present invention comprises a glass window 11a for observing the internal state of the front door 11 and a fan 12 for discharging the evaporated solvent Shaped housing 10 having a rectangular shape.

Therefore, the concentration of the sample can be observed even during concentration through the glass window 11a, and the evaporated solvent can be safely discharged by the fan 12, thereby minimizing the exposure of the solvent to the user .

In this case, the front door 11 may be provided at one side thereof with an elastic support for preventing the front door 11 from being closed automatically when the front door 11 is opened.

Inside the housing 10, a test tube fixture 20 for fixing a plurality of test tubes 21 accommodating a sample to be concentrated is provided.

At this time, the test tube 21 is a large capacity test tube 21 containing 150 to 250 ml of the sample, and the lower end is formed narrower than the upper end, and the protrusion 21a is formed at the lower end. In the case of the large capacity experimental tube 21, there is a large problem that nitrogen or air that is continuously supplied during the excessive concentration can evaporate to the concentrated sample. Therefore, the protrusion 21a is formed at the lower end of the tube 21, It is possible to enhance the function of collecting the data.

In addition, the test tube fixture 20 includes at least one Peltier element 22 on its inner bottom surface.

The test tube fixture 20 includes a lower fixture 20a having a groove for receiving the projection 21a of the test tube 21 and a center fixture 20b for supporting the center of the test tube 21, And an upper end of the center fixture 20b and a lower fixture 20a are formed on the upper surface of the center fixture 20b with a test tube insertion port 23 into which the test tube 21 is inserted. A central slit 24 is formed to confirm the degree of concentration. In addition, the Peltier element 22 is provided on the inner lower side of the lower fixture 20a. The Peltier element 22 cools the protrusions 21a of the test tube 21 to prevent excessive concentration of the protrusions 21a . The time for supplying nitrogen or air to the timer 72 provided in the sample concentrator may be set to prevent excessive concentration. However, if the setting of the timer 72 is missed or the time is set incorrectly, Or the air is supplied and excess concentration is carried out. Even if nitrogen or air is continuously supplied, the protrusions 21a of the test tube 21 are cooled by the Peltier element 22, Is prevented from being excessively concentrated so that the effect of preventing excessive concentration of the sample can be remarkably improved and the efficiency of the experiment can be improved.

At this time, the cooling temperature by the Peltier element 22 is maintained in the range of 0 to 13 캜 according to the value set by the user. If it exceeds 13 캜, the cooling effect is lowered and the effect of preventing excessive concentration is lowered If the temperature is less than 0 ° C, there is a problem that the sample is denatured or the temperature difference from the outside of the sample concentrator becomes large, and thus a condensation phenomenon may occur.

A shelf (30) formed to slide back and forth is provided under the test tube fixture (20). At this time, the shelf 30 may further include rails on both sides of the shelf 30 so that the shelf 30 is slid. On the front surface of the shelf 30, a handle is provided to allow the user to move the shelf 30 back and forth. Of course. Accordingly, when the user pulls the shelf 30, the test tube fixture 20 is moved forward and the test tube 21 containing the sample can be easily inserted into the test tube fixture 20.

Next, a plurality of injection nozzles 40 for injecting nitrogen or air into the test tube 21 are provided on the upper portion of the test tube fixture 20. At this time, each supply tube 90 for supplying nitrogen or air to the injection nozzle 40 is provided at one side of the injection nozzle 40.

At this time, the injection nozzle 40 has a jet opening 41 at its end, and four fine holes 42 are crossed at a position 10 to 15 mm away from the end in the upward direction, so that the saturation The steam can also be dried at the same time, thereby reducing the concentration rate. If the position of the fine hole 42 is greater than 15 mm, it may be difficult to dry the saturated steam formed on the inner wall of the test tube 21. If the position is less than 10 mm, the position of the injection hole 41 is close to the position of the injection hole 41, There is a problem in that the pressure of the nitrogen or the air that is being supplied to the engine can be lowered.

In addition, the injection nozzle 40 has three injection nozzles 40 for each test tube 21, thereby reducing the concentration rate of the large-capacity test tube 21.

An injection nozzle fixing member 50 for fixing the plurality of injection nozzles 40 at the same time is coupled to an upper portion of the injection nozzle 40. A rear portion of the injection nozzle fixing member 50 is provided behind the shelf 30 And is coupled with an entrance 60 for vertically moving the injection nozzle fixture 50. Thus, the injection nozzle 40 is moved up and down by the door 60, and it is possible to enter and exit the inside of the test tube 21.

At this time, the movement of the entrance / exit port 60 is controlled by the electric motor, and the injection nozzle 40 is controlled by a sensor that detects the position of the injection nozzle 40 and the height of the sample in the test tube 21, It is of course possible to arrange such that the end of the sample does not come into contact with the sample.

A control port 70 having an operation display window 71 for supporting the shelf 30 and the entrance 60 and controlling the operation of the sample concentrator is provided under the shelf 30 and the entrance door 60. At this time, the control port 70 can automatically or manually control the height and the moving speed of the injection nozzle 40, and a timer 72 is provided at one side to set the time for supplying nitrogen or air, Can be prevented. Accordingly, since the timer 72 and the Peltier element 22 are provided, it is possible to prevent the excessive concentration and double the effect of preventing excessive concentration.

The housing 10 is provided at its inner side with a lower opening and a downwardly facing partition wall 13. The partition wall 13 is provided at the front of the partition wall 13 and corresponds to each of the injection nozzles 40, And a plurality of light emission switches 14 for controlling the solenoid valves and informing the operation states of the respective injection nozzles 40 so that the flow rate and the pressure can be independently supplied to the respective injection nozzles 40 . Therefore, there is no interference with the flow rate and the pressure between the injection nozzles 40, and it is possible to individually control the loss rate of the nitrogen or air, so that the injection is uniform and stable.

At this time, a space for trapping the solvent and moisture evaporated by the partition wall 13 is generated, thereby enhancing the discharge efficiency.

In addition, a heating hole 80 for heating the inside of the housing 10 is provided on the backside of the housing 10. At this time, the temperature of the heating pot (80) is maintained in the range of 15 to 80 캜 according to the value set by the user. If the temperature exceeds 80 캜, the sample may be denatured. It is preferable to maintain the temperature of the heating tool 80 in the range of 15 to 80 ° C. As a result, the heating time can be shortened by applying heat to the inside of the housing 10 by the heating tool 80, and the temperature can be controlled by the temperature sensor to be kept constant and prevented from being overheated.

When the user opens the front door 11 and pulls the shelf 30 inside the housing 10, the laboratory fixture 20 is moved forward to simultaneously move the sample holder The test tube 21 can be easily inserted into the test tube fixture 20. The temperature of the heating port 80, the setting of the nitrogen or air supply time through the timer 72 and the cooling temperature of the Peltier element 22 are set in the control port 70 in accordance with the purpose of the experiment, The injection nozzle fixture 50 to which the plurality of injection nozzles 40 are coupled and fixed is moved by the operation of the injection nozzle 40 and three injection nozzles 40 are inserted into the test tube 21 for each of the test tubes 21. Nitrogen or air is then supplied to the spray nozzle 40 through the supply tube 90 and nitrogen or air is supplied into the test tube 21 to concentrate the sample. At this time, the respective injection nozzles 40 can be independently controlled by the plurality of emission switches 14, and the evaporated solvent and moisture are discharged through the fan 12. [

The protrusion 21a formed at the lower end of the test tube 21 is cooled by the Peltier element 22 so that the solvent in the upper part of the test tube 21 is cooled The concentrated sample contained in the protrusions 21a at the lower end of the test tube 21 is evaporated, thereby preventing excessive concentration and preserving the integrity of the concentrated sample.

This is because the setting of the timer 72 is missed or the time is set incorrectly, so that even when nitrogen or air is continuously supplied, the lower end of the test tube 21 is cooled and the concentrated sample is not evaporated.

10: Housing
11: front door 11a: windshield
12: Fans
13:
14: Emission switch
20: laboratory fixture
20a: Lower fixture 20b: Central fixture
21: Laboratory tube 21a:
22: Peltier element
23: Lab tube insertion
24: center slit
30: Shelf
40: injection nozzle
41: nozzle
42: Fine holes
50: injection nozzle fixture
60:
70:
71: Operation display window
72: Timer
80: Hitting area
90: Feed tube

Claims

The front door (11) has a window (11a) for observing the internal state and a fan (12) for discharging the evaporated solvent on the upper side. A plurality of spray nozzles 40 are provided on the front surface of the partition wall 13 so as to respectively control solenoid valves provided in the supply tubes 90 and to control the operation states of the spray nozzles 40 A housing 10 having a plurality of light emitting switches 14 for indicating the light emitting switch 14 and a heating port 80 for heating the inside of the housing 10;
A plurality of test tubes 21 are installed inside the housing 10 to receive a sample to be concentrated. The test tube 21 is a large capacity test tube 21 containing 150 to 250 ml of sample, And a projection 21a is formed at the lower end thereof,
The test tube fixture 20 including at least one Peltier element 22 on the inner bottom surface is formed with an experimental tube insertion port 23 into which the test tube 21 is inserted on the upper surface, A lower fixture 20a having a groove for receiving the protrusion 21a of the test tube 21 and a central fixture 20a for supporting the center of the test tube 21, 20b,
A test pipe fixture 20 in which the protrusions 21a of the test tube 21 are cooled by the Peltier element 22 provided on the inner lower side of the lower fixture 20a to prevent excessive concentration;
A shelf 30 provided under the test tube fixture 20 and configured to slide back and forth;
The injection hole 41 is formed at an end of the test tube fixture 20 and four fine holes 42 are formed at an interval of 10 to 15 mm from the end of the test tube fixture 20 in an upward direction, The saturated vapor formed on the inner wall of the tube 21 is dried at the same time and three spray nozzles 40 are provided for each of the tubes 21 to spray nitrogen or air into the tubes to shorten the concentration rate, An injection nozzle 40 having a plurality of nozzles 40;
A spray nozzle fixture (50) for fixing the spray nozzle (40);
A lift door 60 coupled to a rear portion of the injection nozzle fixture 50 and provided behind the shelf 30 to vertically move the injection nozzle fixture 50;
An operation display window 71 provided under the shelf 30 and the elevator 60 for supporting the shelf 30 and the elevator 60 and controlling the operation of the sample concentrator and the timer 72 on one side, A controller 70 for setting the time for supplying nitrogen or air to prevent excessive concentration;
A sample concentrator for preventing excessive concentration using a Peltier element.

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