Nitrogen blowing concentrator convenient for batch operation

Abstract

The utility model discloses a nitrogen blowing concentrator convenient for batch operation, which comprises a base, a first groove arranged at the top of the base and a support disc arranged in the first groove, a limit groove is arranged on the circumferential side wall of the first groove, two symmetrically distributed bumps are fixedly connected on the side wall of the support disc, the bumps are clamped in the limit groove, and the limit groove is arranged in the support disc. A base disc capable of vertically moving is arranged above the base, a central shell is fixedly connected to the top of the base disc, a plurality of gas needles distributed in the circumferential direction are fixedly embedded in the base disc, the gas needles are vertically distributed, a gas conveying pipe is arranged between the upper ends of the gas needles and the central shell in a communicating mode, and a gas inlet nozzle is arranged at the top of the central shell in a communicating mode. According to the utility model, the heating coil is used for heating the plurality of test tubes, so that the evaporation rate is improved; and after nitrogen blowing is completed, the supporting disc is moved out from the interior of the first groove, so that the multiple test tubes are synchronously moved out, the multiple test tubes are subjected to standing cooling, and batch operation is conveniently achieved.

Description

Technical Field

[0001] This utility model relates to the field of nitrogen blowing device technology, specifically a nitrogen blowing device that is easy to operate in batches. Background Technology

[0002] A nitrogen evaporator is a common laboratory device used to accelerate solvent evaporation and sample concentration processes. It primarily works by purging the sample surface with nitrogen gas, using the flow of nitrogen to remove solvent from the liquid surface, thereby rapidly concentrating the solution to the desired concentration.

[0003] Currently available nitrogen evaporators have multiple gas outlets, allowing them to process multiple test tubes simultaneously. During the nitrogen purging process, the nitrogen evaporator heats the sample or test tube to rapidly evaporate the solvent. After nitrogen purging, the surface and interior of the test tube may be very hot and need to be cooled to a safe temperature. However, it is not possible to remove multiple test tubes from the nitrogen evaporator at the same time in batches, so this problem needs to be solved. Utility Model Content

[0004] (1) Technical problems solved

[0005] To address the shortcomings of existing technologies, this invention provides a nitrogen blowing device that facilitates batch operation, thus solving the problems mentioned in the background section.

[0006] (2) Technical solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a nitrogen blowing device that facilitates batch operation, comprising a base, a first groove on the top of the base, and a support plate disposed inside the first groove. The circumferential sidewall of the first groove has a limiting groove. Two symmetrically distributed protrusions are fixedly connected to the sidewall of the support plate, and the protrusions are engaged in the limiting groove. A vertically movable base plate is provided above the base. A central shell is fixedly connected to the top of the base plate. Multiple circumferentially distributed air needles are fixedly embedded on the base plate. The air needles are vertically distributed. An air supply pipe is provided between the upper end of each air needle and the central shell. An air inlet is provided at the top of the central shell.

[0008] Preferably, a bracket is fixedly connected to the rear side wall of the base, and a cylinder is fixedly installed on the top of the bracket, with the output end of the cylinder fixedly connected to the top of the central shell.

[0009] Preferably, each of the protrusions has a handle fixedly connected to its top.

[0010] Preferably, the bottom of the slot has a through hole, the diameter of which is smaller than the diameter of the slot.

[0011] Preferably, a second groove is formed on the bottom wall of the first groove, and a heating coil is fixedly installed on the bottom wall of the second groove. The heating coil is vortex-shaped.

[0012] Preferably, the central shell and the base disk are arranged coaxially, and the diameter of the base disk is larger than the diameter of the central shell.

[0013] (3) Beneficial effects

[0014] This invention provides a nitrogen blowing device that is easy to use in batch operations, and has the following beneficial effects:

[0015] 1. In this utility model, multiple test tubes are inserted into their corresponding slots, and then the cylinder is activated to lower the base plate, bringing the gas needle close to the opening of the test tube. By connecting an external nitrogen source to the air inlet, high-pressure nitrogen enters the central shell, passes through multiple gas delivery pipes, and is finally discharged by multiple gas needles, blowing onto the liquid inside the test tube and the solvent on the surface of the liquid, thereby quickly concentrating the solution to the required concentration; this allows for convenient batch operation of multiple test tubes.

[0016] 2. In this utility model, multiple test tubes are heated by a heating coil to increase the evaporation rate; after nitrogen blowing is completed, the support plate is moved out from the first groove, thereby realizing the synchronous removal of multiple test tubes and allowing multiple test tubes to be statically cooled, which facilitates batch operation. Attached Figure Description

[0017] Figure 1 A front-view three-dimensional structural diagram of a nitrogen blowing device that facilitates batch operation according to this utility model;

[0018] Figure 2 This is a front-view exploded view of a nitrogen blowing device that is easy to operate in batches, as proposed in this utility model.

[0019] Figure 3 This is a cross-sectional view of the support plate structure of a nitrogen blowing device that is convenient for batch operation according to the present invention.

[0020] In the diagram: 1. Base; 101. First groove; 102. Second groove; 103. Limiting groove; 2. Heating coil; 3. Support plate; 301. Slot; 302. Through hole; 4. Protrusion; 5. Pull handle; 6. Bracket; 7. Cylinder; 8. Base plate; 9. Central shell; 10. Air needle; 11. Air supply pipe; 12. Air inlet. Detailed Implementation

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] Please see Figures 1 to 3This utility model provides a technical solution: a nitrogen blowing device that is easy to operate in batches, including a base 1, a first groove 101 opened on the top of the base 1, and a support plate 3 set inside the first groove 101. The circumferential side wall of the first groove 101 is provided with a limiting groove 103. Two symmetrically distributed protrusions 4 are fixedly connected to the side wall of the support plate 3. The protrusions 4 are engaged in the limiting groove 103 to limit the support plate 3 and prevent the support plate 3 from deflecting during the experiment. A vertically movable base plate 8 is provided above the base 1. A central shell 9 is fixedly connected to the top of the base plate 8. Multiple circumferentially distributed gas needles 10 are fixedly embedded on the base plate 8. The gas needles 10 are vertically distributed. A gas supply pipe 11 is provided between the upper end of the gas needle 10 and the central shell 9. An air inlet 12 is provided at the top of the central shell 9. This nitrogen blowing device usually needs to be connected to an external nitrogen source. This nitrogen source can be a nitrogen cylinder to provide the required nitrogen. The nitrogen source is directly connected to the air inlet 12 to provide nitrogen.

[0023] Furthermore, a bracket 6 is fixedly connected to the rear side wall of the base 1, and a cylinder 7 is fixedly installed on the top of the bracket 6. The output end of the cylinder 7 is fixedly connected to the top of the central shell 9.

[0024] Multiple test tubes are inserted into their corresponding slots 301. Then, cylinder 7 is activated, causing base plate 8 to descend, bringing gas needle 10 close to the opening of the test tube. By connecting an external nitrogen source to the inlet 12, high-pressure nitrogen enters the central shell 9, passes through multiple gas delivery pipes 11, and is finally discharged by multiple gas needles 10, blowing onto the liquid inside the test tube and the solvent on the surface of the liquid, thereby quickly concentrating the solution to the required concentration; this facilitates batch operation of multiple test tubes.

[0025] Each of the protrusions 4 has a handle 5 fixedly connected to its top, which makes it easy to apply force with your hand to separate the support plate 3 from the inside of the first groove 101.

[0026] A through hole 302 is provided at the bottom of the slot 301, and the diameter of the through hole 302 is smaller than the diameter of the slot 301.

[0027] The bottom wall of the first groove 101 has a second groove 102, and the bottom wall of the second groove 102 is fixedly installed with a heating coil 2, which is vortex-shaped.

[0028] The heating coil 2 heats multiple test tubes, increasing the evaporation rate. The through hole 302 connects the second groove 102 to the slot 301, which allows the heat generated by the heating coil 2 to be transferred to the test tubes more effectively, thus improving the evaporation effect of the liquid inside the test tubes.

[0029] After nitrogen blowing is completed, the support plate 3 is removed from the first groove 101, thereby realizing the synchronous removal of multiple test tubes and allowing multiple test tubes to be statically cooled, which facilitates batch operation.

[0030] In addition, the central shell 9 and the base plate 8 are arranged on the same axis, and the diameter of the base plate 8 is larger than the diameter of the central shell 9.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A nitrogen blowing device that is easy to operate in batches, characterized in that: The device includes a slot (301), a base (1), a first groove (101) opened on the top of the base (1), and a support plate (3) disposed inside the first groove (101). A limiting groove (103) is opened on the circumferential side wall of the first groove (101). Two symmetrically distributed protrusions (4) are fixedly connected to the side wall of the support plate (3). The protrusions (4) are engaged in the limiting groove (103). A vertically movable base plate (8) is provided above the base (1). A central shell (9) is fixedly connected to the top of the base plate (8). A plurality of circumferentially distributed air needles (10) are fixedly embedded on the base plate (8). The air needles (10) are vertically distributed. An air supply pipe (11) is provided between the upper end of the air needle (10) and the central shell (9). An air inlet (12) is provided on the top of the central shell (9).

2. The nitrogen blowing device for easy batch operation according to claim 1, characterized in that: A bracket (6) is fixedly connected to the rear side wall of the base (1), and a cylinder (7) is fixedly installed on the top of the bracket (6). The output end of the cylinder (7) is fixedly connected to the top of the central shell (9).

3. The nitrogen blowing device for easy batch operation according to claim 1, characterized in that: Each of the protrusions (4) has a handle (5) fixedly connected to its top.

4. A nitrogen blowing device for easy batch operation according to claim 1, characterized in that: The slot (301) has a through hole (302) at the bottom, and the diameter of the through hole (302) is smaller than the diameter of the slot (301).

5. A nitrogen blowing device for easy batch operation according to claim 1, characterized in that: The bottom wall of the first groove (101) is provided with a second groove (102), and a heating coil (2) is fixedly installed on the bottom wall of the second groove (102). The heating coil (2) is vortex-shaped.

6. A nitrogen blowing device for easy batch operation according to claim 1, characterized in that: The central shell (9) is coaxially arranged with the base plate (8), and the diameter of the base plate (8) is larger than the diameter of the central shell (9).

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