An air purge organic solvent concentrator

Abstract

The utility model relates to an air purging organic solvent concentration appearance, including volatile cabinet, sample container fixing frame, air jet head, air pump and exhaust pipe, sample container fixing frame sets up in volatile cabinet, for placing sample container, air jet head dismounts and sets up in volatile cabinet, and sets up the top of sample container, the air supply pipe of air pump is connected with air jet head, exhaust pipe is connected with volatile cabinet, adopts the way of air flow purging organic solvent liquid surface with setting speed to organic solvent, accelerates the volatilization of organic solvent, is applicable to organic solvent volatilization and concentration, and the application scope is extensive, its air jet head can replace dismount, prevents the pollution, its operation is simple, improves the concentration efficiency, improves the environmental protection performance.

Description

Technical Field

[0001] This utility model belongs to the field of laboratory instrument and equipment technology, specifically relating to an air-purged organic solvent concentrator. Background Technology

[0002] In laboratory operations, it is often necessary to volatilize and concentrate organic solvents.

[0003] Traditional evaporation and concentration methods include room temperature evaporation concentration and heated evaporation concentration. Room temperature evaporation concentration has problems such as long settling time, low evaporation efficiency, and the need for frequent and prolonged observation to confirm the amount of evaporation. Heated evaporation concentration has problems such as the need to control the heating temperature and power to prevent hazards. Moreover, these methods need to be carried out in specific experimental environments; otherwise, they can easily cause laboratory air pollution and have long-term effects on the health of experimental personnel.

[0004] Therefore, there is an urgent need to develop a device for organic solvent concentration that can improve the efficiency of organic solvent volatilization and concentration, and that is easy to operate. Utility Model Content

[0005] To address at least one of the problems in the prior art, the purpose of this invention is to provide an air-purge organic solvent concentrator that is easy to operate, improves concentration efficiency, and enhances environmental performance.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An air-purged organic solvent concentrator, comprising:

[0008] Vaporizer cabinet, with exhaust vents;

[0009] A sample container holder is installed in the evaporation cabinet for placing sample containers;

[0010] The jet head is detachably installed inside the evaporation chamber and positioned above the sample container;

[0011] An air pump, the air supply pipe of which is connected to the jet head;

[0012] An exhaust pipe, one end of which is connected to the exhaust port, and the other end of which is connected to the exhaust gas treatment device outside the laboratory.

[0013] Preferably, the air pump is equipped with a controller for adjusting the airflow rate.

[0014] Preferably, a placement tray is provided inside the evaporation cabinet, and the sample container holder is placed on the placement tray.

[0015] Preferably, the evaporation cabinet is provided with at least two branch gas pipes, one end of each branch gas pipe is connected to the gas supply pipe, and the other end is connected to one of the jet heads.

[0016] Preferably, the sample container holder is configured with at least two sample container fixing positions, and each sample container fixing position is provided with an air jet head above it.

[0017] Preferably, a purge gas distribution fixing plate is provided inside the evaporation cabinet. The purge gas distribution fixing plate is located above the placement plate and is connected to the placement plate via a connecting rod. Multiple jet heads are detachably connected to the purge gas distribution fixing plate, and the multiple jet heads are evenly distributed along the circumference.

[0018] Preferably, a connection hole is formed in the center of the purging gas distribution plate, and the end of the gas supply pipe is disposed in the connection hole; and a multi-way gas distribution valve is connected to the end of the gas supply pipe, the multi-way gas distribution valve is provided with an air hole, and a connector pipe is provided at the position of the air hole; one end of each branch gas pipe is connected to one of the connector pipes.

[0019] Preferably, the exhaust pipe is connected to the top of the rear side wall of the evaporation cabinet.

[0020] This utility model has the following advantages due to the adoption of the above technical solution:

[0021] 1. The air-purge organic solvent concentrator provided by this utility model uses air to purge the surface of the organic solvent liquid to accelerate the evaporation of the organic solvent. It is suitable for the evaporation and concentration of organic solvents and has a wide range of applications. Its jet head can be replaced and disassembled to prevent pollution. It is easy to operate, improves the concentration efficiency, and improves the environmental performance.

[0022] 2. The air-purge organic solvent concentrator provided by this utility model can control the air flow rate through a controller, thereby controlling the evaporation rate of the organic solvent.

[0023] 3. The air-purge organic solvent concentrator provided by this utility model can simultaneously concentrate multiple samples containing organic solvents, further improving the concentration efficiency.

[0024] 4. The air-purged organic solvent concentrator provided by this utility model allows for flexible placement of samples containing organic solvents, which can be placed in beakers or test tubes.

[0025] 5. The air-purge organic solvent concentrator provided by this utility model has an exhaust pipe that can be directly connected to the exhaust pipe in the laboratory, so that the volatile gases of the organic solvent can be discharged from the laboratory through the evaporation cabinet and the exhaust pipe. Attached Figure Description

[0026] Figure 1 This is a front view of the evaporation cabinet of an air-purged organic solvent concentrator provided in an embodiment of this utility model.

[0027] Figure 2 This is a rear view of the evaporation cabinet of an air-purged organic solvent concentrator provided in one embodiment of the present invention.

[0028] Figure 3 This is a perspective view of the evaporation cabinet of an air-purged organic solvent concentrator provided in an embodiment of this utility model.

[0029] Figure 4 This is a schematic diagram of the sample container holder of an air-purged organic solvent concentrator provided in one embodiment of the present invention.

[0030] Figure 5 This is a schematic diagram of the purge gas distribution fixing plate of an air-purged organic solvent concentrator provided in one embodiment of the present invention.

[0031] Marked in the attached diagram:

[0032] 1. Evaporation cabinet, 2. Gas flow meter, 3. Jet nozzle, 4. Connecting rod, 5. Exhaust port, 6. Placement tray, 7. Purge gas distribution fixing tray, 8. Multi-way gas distribution valve, 9. Connecting pipe, 10. Cabinet door, 11. Glass window, 12. Gas supply pipe, 13. Sample container fixing rack. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0034] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the system or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The direction of the arrows in the figures represents the direction of liquid flow.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "assembly," "setup," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] This invention provides an air-purged organic solvent concentrator that uses air to purge samples containing organic solvents in the evaporation chamber to cause them to evaporate, and allows the volatile gases to evaporate and be discharged quickly; it also avoids contamination through a detachable and replaceable jet head; it is easy to operate, improves concentration efficiency, and enhances environmental performance.

[0037] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0038] Example 1

[0039] Please refer to the reference. Figures 1 to 5 The air-purge organic solvent concentrator provided in this embodiment includes a volatilization cabinet 1, a sample container holder 13, a jet nozzle 3, an air pump, and an exhaust pipe. The volatilization cabinet 1 has an exhaust port 5. The sample container holder is installed in the volatilization cabinet 1 for placing sample containers. The jet nozzle 3 is detached and installed in the volatilization cabinet 1, and is positioned above the sample container holder 13. The air supply pipe 12 of the air pump is connected to the jet nozzle 3. One end of the exhaust pipe is connected to the exhaust port 5, and the other end is connected to an exhaust gas treatment device outside the laboratory.

[0040] The sample container can be a beaker or test tube, used to hold the sample containing organic solvent to be concentrated. The exhaust pipe is used to expel the volatile gases from the sample containing organic solvent. An air pump is used to generate airflow to purge the sample containing organic solvent, accelerating its evaporation. The jet nozzle 3 is removable and replaceable to prevent contamination. A gas flow meter 2 can be installed on the evaporation cabinet 1, and the gas flow meter 2 is connected to the gas supply pipe 12.

[0041] like Figure 1 As shown, the evaporation cabinet 1 can be equipped with an openable cabinet door 10, and a glass window 11 can be installed on the cabinet door 10.

[0042] Specifically, the air pump is equipped with a controller, which is used to adjust the airflow rate and control the evaporation rate of the sample containing organic solvents.

[0043] Combination Figure 3 and Figure 4 As shown, specifically, a placement tray 6 is provided inside the evaporation cabinet 1, and the sample container fixing rack 13 can be concentrically fixed on the placement tray 6.

[0044] Specifically, at least two branch gas pipes are installed inside the evaporator 1. One end of each branch gas pipe is connected to the gas supply pipe 12, and the other end is connected to a jet head 3.

[0045] Specifically, the sample container holder is configured with at least two sample container fixing positions, and an air jet 3 is installed above each sample container fixing position. Multiple sample containers containing organic solvents can be placed using multiple sample container holders. For example, if there are twenty branch tubes, air jet 3s, and sample container fixing positions, the solvent in twenty sample containers containing organic solvents can be concentrated simultaneously.

[0046] Combination Figure 5 As shown, specifically, a purge gas distribution fixing plate 7 is provided inside the evaporator 1, and the purge gas distribution fixing plate 7 is positioned above the placement plate 6; multiple jet head fixing holes are opened on the purge gas distribution fixing plate 7, and jet head fixing pipes are connected to the fixing holes. The jet head fixing pipes can tighten or loosen the jet head 3 through the set screws on the side wall, so that the height can be adjusted up and down; the jet head 3 is detachably connected to the purge gas distribution fixing plate 7, and the multiple jet heads 3 are evenly distributed along the circumference.

[0047] The purging gas distribution fixing plate 7 and the placement plate 6 can be connected by vertical connecting rods 4. There are at least three connecting rods 4, which are evenly distributed along the circumference.

[0048] like Figure 4 and Figure 5 As shown, specifically, a connection hole is opened in the center of the purge distribution plate 7, and the end of the air supply pipe 12 is set in the connection hole; and the end of the air supply pipe 12 is connected to a multi-way air distribution valve 8, which has an air hole and an air passage. The air inlet end of the air passage of the multi-way air distribution valve 8 is connected to the air supply pipe 12, and the air outlet end of the air passage is an air hole. A connector pipe 9 is set at the air hole position; one end of each branch air pipe is connected to a connector pipe 9.

[0049] like Figure 5 As shown, the sample container holder 13, the jet head 3, the branch air pipe, the connector pipe 9, and the air holes are all equal in number and correspond one-to-one.

[0050] like Figure 2 As shown, specifically, the exhaust pipe is connected to the top of the rear side wall of the evaporator 1.

[0051] The air-purged organic solvent concentrator of this embodiment includes the following steps during use:

[0052] Step S1: Load the sample containing organic solvent to be concentrated into a sample container and place the sample container in the sample container holder 13 in the evaporation cabinet 1.

[0053] Step S2: Install the jet head 3 at a position set above the surface of the organic solvent inside the sample container holder;

[0054] Step S3: Turn on the air pump so that the air supply pipe 12 supplies air to the jet head 3, and the air is blown through the jet head 3 to sweep the surface of the sample liquid containing organic solvent.

[0055] Step S4: The sample containing organic solvent in the sample container evaporates into gas under the action of air flow and is discharged through the exhaust pipe;

[0056] Step S5: When the sample containing organic solvent is concentrated to the required degree, turn off the air pump and remove the sample container containing organic solvent.

[0057] Specifically, in step S3, the airflow rate supplied by the air pump is controlled by the controller;

[0058] In step S4, the exhaust pipe is connected to the laboratory exhaust pipe so that the volatile gases from the sample containing the organic solvent are discharged from the laboratory.

[0059] Alternatively, in step S1, the solution of the organic solvent to be volatilized is placed into a beaker, test tube, or centrifuge tube of appropriate volume, for example, the volume of the beaker is 50 mL, or the volume of the test tube or centrifuge tube is 5 mL; then, the door of the volatilization cabinet 1 is opened, and the beaker, test tube, or centrifuge tube containing the solution is placed on the placement tray 6 of the volatilization cabinet 1.

[0060] In step S2, a disposable nozzle is installed on the jet head 3, and the height of the jet head 3 is adjusted so that the nozzle opening is 1 cm away from the solution surface.

[0061] In step S3, close the door of the evaporation cabinet 1, ensure that the gas flow meter is off, and turn on the power of the concentrator; slowly adjust the gas flow meter so that the airflow from the nozzle reaches the set flow rate.

[0062] In step S5, after the organic solvent in the solution evaporates and the solution is concentrated to the set volume, the gas flow meter is turned off, and the beaker, test tube, or centrifuge tube is removed.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An air-purged organic solvent concentrator, characterized in that, include: A evaporator (1) with an exhaust vent (5); A sample container holder (13) is installed in the evaporation cabinet (1) for placing sample containers; The jet head (3) is disassembled and installed inside the evaporation cabinet (1) and positioned above the sample container; An air pump, the air supply pipe (12) of which is connected to the jet head (3); An exhaust pipe, one end of which is connected to the exhaust port (5), and the other end of which is connected to the exhaust gas treatment device outside the laboratory.

2. The air-purged organic solvent concentrator according to claim 1, characterized in that, The air pump is equipped with a controller, which is used to adjust the airflow rate.

3. The air-purged organic solvent concentrator according to claim 1, characterized in that, The evaporation cabinet (1) is provided with a placement tray (6), and the sample container holder (13) is placed on the placement tray (6).

4. The air-purged organic solvent concentrator according to claim 3, characterized in that, The evaporator (1) is provided with at least two branch gas pipes. One end of each branch gas pipe is connected to the gas supply pipe (12), and the other end is connected to one of the jet heads (3).

5. The air-purged organic solvent concentrator according to claim 4, characterized in that, The sample container holder (13) is configured with at least two sample container fixing positions, and each sample container fixing position is provided with an air jet (3) above it.

6. The air-purged organic solvent concentrator according to claim 4, characterized in that, The evaporation cabinet (1) is provided with a purge gas distribution fixing plate (7), which is located above the placement plate (6) and connected to the placement plate (6) by a connecting rod (4); multiple jet heads (3) are detachably connected to the purge gas distribution fixing plate (7), and the multiple jet heads (3) are evenly distributed along the circumference.

7. The air-purged organic solvent concentrator according to claim 6, characterized in that, A connection hole is opened in the center of the purge gas distribution plate (7), and the end of the gas supply pipe (12) is set in the connection hole; and the end of the gas supply pipe (12) is connected to a multi-way gas distribution valve (8), the multi-way gas distribution valve (8) is provided with an air hole, and a connector pipe (9) is provided at the air hole position; one end of each branch gas pipe is connected to one of the connector pipes (9).

8. The air-purged organic solvent concentrator according to any one of claims 1-7, characterized in that, The exhaust pipe is connected to the top of the rear side wall of the evaporator (1).

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