A rotary evaporation waste liquid receiving device

Abstract

The utility model discloses a kind of rotary evaporation waste liquid receiving devices, including vacuum transition bottle and waste liquid receiving bottle;The waste liquid receiving bottle is detachably installed at the bottom of the vacuum transition bottle;The outer bottom surface of the vacuum transition bottle is equipped with the installation pipeline that is communicated with its inside, one-way valve is detachably installed in the installation pipeline, and the one-way valve channel direction is from the inside of the vacuum transition bottle towards the outside of the vacuum transition bottle.The rotary evaporation waste liquid receiving device provided by the utility model can effectively avoid the waste liquid from the rotary evaporation device waste liquid outlet back to the reverse, thereby effectively reducing the risk of waste liquid pollution rotary evaporation system;And the rotary evaporation waste liquid receiving device provided by the utility model adopts multi-unit detachable assembly design, effectively facilitates the cleaning and maintenance of device.

Description

Technical Field

[0001] This utility model relates to the field of chemical experimental equipment technology, and in particular to a rotary evaporation waste liquid receiving device. Background Technology

[0002] A rotary evaporator is a commonly used evaporation and concentration device in laboratories, mainly used for efficient solvent removal and sample separation and purification. It is widely used in chemistry, pharmaceuticals, biology, and other fields. The working principle of a rotary evaporator is roughly as follows: a motor drives the distillation flask to rotate (forming a uniform liquid film), while a vacuum system is connected to reduce the pressure of the distillation environment, causing the solvent to evaporate rapidly at a lower temperature. The evaporated solvent is then cooled by a condenser and collected in a receiving flask.

[0003] Currently, when some low-boiling-point reagents are being evaporated by rotary evaporation, the waste liquid after condensation and reflux enters the waste liquid receiving bottle. Due to sudden pressure changes, the waste liquid may cause violent boiling or overflow, thereby contaminating the condenser tube and the entire vacuum system.

[0004] Based on this, the present invention proposes a rotary evaporation waste liquid receiving device to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this invention is to provide a rotary evaporation waste liquid receiving device to reduce the risk of waste liquid contaminating the rotary evaporation system.

[0006] To solve the above-mentioned technical problems, this utility model provides a rotary evaporation waste liquid receiving device, including a vacuum transition bottle and a waste liquid receiving bottle; the waste liquid receiving bottle is detachably installed at the bottom of the vacuum transition bottle; the outer bottom surface of the vacuum transition bottle is provided with an installation pipeline communicating with its interior, and a one-way valve is detachably installed in the installation pipeline, the one-way valve channel running from the inside of the vacuum transition bottle toward the outside of the vacuum transition bottle.

[0007] Furthermore, both the bottom of the outer wall of the vacuum transition bottle and the top of the outer wall of the waste liquid receiving bottle have annular shoulders, and the two annular shoulders are connected by a clamp.

[0008] Furthermore, the bottom surface of the vacuum transition bottle is provided with a positioning groove, and the top surface of the waste liquid receiving bottle is provided with a positioning protrusion that matches the positioning groove.

[0009] Furthermore, the one-way valve is threadedly installed in the installation pipeline, and when the one-way valve is tightened, the top of the one-way valve is located below the top of the installation pipeline.

[0010] Furthermore, the one-way valve is provided with a limiting skirt at the bottom end, and a sealing ring is provided on the top surface of the limiting skirt. When the one-way valve is tightened and installed, the sealing ring is in close contact with the bottom surface of the installation pipeline.

[0011] Furthermore, the limiting skirt has a regular hexahedral structure.

[0012] Furthermore, the bottom surface of the vacuum transition bottle is configured as a funnel shape, and the installation pipeline is connected to the lowest point of the bottom surface of the vacuum transition bottle.

[0013] Furthermore, a discharge valve is provided at the lower end of the waste liquid receiving bottle.

[0014] Compared with the prior art, the present invention has at least the following beneficial effects:

[0015] The rotary evaporation waste liquid receiving device provided by this utility model can effectively prevent the waste liquid discharged from the waste liquid outlet of the rotary evaporation device from flowing back, thereby effectively reducing the risk of waste liquid contaminating the rotary evaporation system; in addition, the rotary evaporation waste liquid receiving device provided by this utility model adopts a multi-unit detachable assembly design, which effectively facilitates the cleaning and maintenance of the device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the rotary evaporation waste liquid receiving device in an embodiment of this utility model;

[0017] Figure 2 This is an internal schematic diagram of the rotary evaporation waste liquid receiving device in an embodiment of this utility model;

[0018] Figure 3 This utility model Figure 2 Enlarged view of the structure at point A in the middle.

[0019] In the diagram: 1. Vacuum transfer bottle; 2. Waste liquid receiving bottle; 3. Installation pipeline; 4. One-way valve; 5. Annular shoulder; 6. Clamp; 7. Positioning groove; 8. Positioning protrusion; 9. Limiting skirt; 10. Discharge valve. Detailed Implementation

[0020] The rotary evaporation waste liquid receiving device of this utility model will now be described in more detail with reference to the schematic diagrams, which illustrate preferred embodiments of this utility model. It should be understood that those skilled in the art can modify the utility model described herein while still achieving its advantageous effects. Therefore, the following description should be understood as being of general knowledge to those skilled in the art and is not intended to limit this utility model.

[0021] The present invention will be described in more detail below by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer from the following description. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.

[0022] like Figure 1As shown, this utility model embodiment proposes a rotary evaporation waste liquid receiving device, including a vacuum transfer bottle 1 and a waste liquid receiving bottle 2;

[0023] Specifically, the waste liquid receiving bottle 2 is detachably installed at the bottom of the vacuum transfer bottle 1; referring to reference Figure 2 The bottom surface of the vacuum transition bottle 1 is provided with an installation pipe 3 that connects to its interior. A one-way valve 4 is detachably installed in the installation pipe 3. The one-way valve 4 runs from the inside of the vacuum transition bottle 1 toward the outside of the vacuum transition bottle 1.

[0024] In this embodiment, when using the rotary evaporation waste liquid receiving device, the top port of the vacuum transfer bottle 1 is connected to the waste liquid outlet of the rotary evaporator, ensuring the connection is sealed. Since the channel of the one-way valve 4 runs from the inside of the vacuum transfer bottle 1 to the outside, the waste liquid generated by rotary evaporation can only enter the waste liquid receiving bottle 2 through the one-way valve 4 and cannot be reversed.

[0025] Furthermore, since both the waste liquid receiving bottle 2 and the one-way valve 4 are detachably installed from the vacuum transition bottle 1, when it is necessary to clean and maintain the inside of the rotary evaporation waste liquid receiving device, the device can be disassembled into three independent units: the vacuum transition bottle 1, the waste liquid receiving bottle 2, and the one-way valve 4, for cleaning and maintenance.

[0026] In summary, the rotary evaporation waste liquid receiving device provided in this embodiment can effectively prevent the waste liquid discharged from the waste liquid outlet of the rotary evaporator from flowing back, thereby effectively reducing the risk of waste liquid contaminating the rotary evaporation system; and the rotary evaporation waste liquid receiving device provided in this embodiment adopts a multi-unit detachable assembly design, which effectively facilitates the cleaning and maintenance of the device.

[0027] In one specific embodiment, in conjunction with reference to Figure 3 The bottom of the outer wall of the vacuum transition bottle 1 and the top of the outer wall of the waste liquid receiving bottle 2 both have annular shoulders 5, and the two annular shoulders 5 are connected by a clamp 6.

[0028] Specifically, the clamp 6 includes two semi-circular ring-shaped sleeves 6a, each with a clamping groove. One end of the two sleeves 6a is rotatably connected by a rotating shaft 6b, and the other end of each sleeve 6a is provided with a fixing plate 6c. The two fixing plates 6c are tightened and fixed by screws 6d, thereby bringing the two sleeves 6a together. After the two sleeves 6a are brought together, the clamping grooves in the sleeves 6a clamp the annular shoulder 5 of the vacuum transition bottle 1 and the annular shoulder 5 of the waste liquid receiving bottle 2, thus achieving a stable connection between the vacuum transition bottle 1 and the waste liquid receiving bottle 2.

[0029] When it is necessary to disassemble the vacuum transfer bottle 1 and the waste liquid receiving bottle 2, simply unscrew the screw 6d and remove the clamp 6; the operation is simple.

[0030] Furthermore, the bottom surface of the vacuum transition bottle 1 is provided with a positioning groove 7, and the top surface of the waste liquid receiving bottle 2 is provided with a positioning protrusion 8 that matches the positioning groove 7. The positioning groove 7 and the positioning protrusion 8 provide effective positioning for the waste liquid receiving bottle 2 and the vacuum transition bottle 1 during installation, facilitating their installation and providing a certain degree of sealing.

[0031] In another specific embodiment, the one-way valve 4 is threadedly installed in the installation pipeline 3, and when the one-way valve 4 is tightened, the top of the one-way valve 4 is located below the top of the installation pipeline 3.

[0032] The one-way valve 4 is connected to the installation pipeline 3 by a thread. When it is necessary to disassemble the one-way valve 4, simply rotate the one-way valve 4 to separate it from the installation pipeline 3. The operation is simple.

[0033] In the specific embodiments described above, in order to facilitate the rotation of the one-way valve 4 for disassembly or installation, a limiting skirt 9 is provided at the bottom of the one-way valve 4, and the limiting skirt 9 is designed to have a regular hexahedral structure.

[0034] Furthermore, to ensure the sealing performance of the one-way valve 4 after installation, a sealing ring (not shown in the figure) is provided on the top surface of the limiting skirt 9. When the one-way valve 4 is tightened and installed, the sealing ring is in close contact with the bottom surface of the installation pipeline 3, thereby achieving a sealed installation of the one-way valve 4.

[0035] In an optional embodiment, the bottom surface of the vacuum transition bottle 1 is configured as a funnel shape, and the installation pipeline 3 is connected to the lowest point of the bottom surface of the vacuum transition bottle 1 so that the waste liquid in the vacuum transition bottle 1 flows into the waste liquid receiving bottle 2.

[0036] In the above embodiments, preferably, a discharge valve 10 is provided at the lower end of the waste liquid receiving bottle 2 to facilitate the timely discharge of waste liquid from the waste liquid receiving bottle 2.

[0037] In summary, compared with the prior art, this utility model has at least the following advantages:

[0038] The rotary evaporation waste liquid receiving device provided by this utility model can effectively prevent the waste liquid discharged from the waste liquid outlet of the rotary evaporation device from flowing back, thereby effectively reducing the risk of waste liquid contaminating the rotary evaporation system; in addition, the rotary evaporation waste liquid receiving device provided by this utility model adopts a multi-unit detachable assembly design, which effectively facilitates the cleaning and maintenance of the device.

[0039] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A rotary evaporation waste liquid receiving device, characterized in that, It includes a vacuum transfer bottle (1) and a waste liquid receiving bottle (2); The waste liquid receiving bottle (2) is detachably installed at the bottom of the vacuum transition bottle (1); The vacuum transition bottle (1) has an installation pipe (3) that connects to its interior on its outer bottom surface. A one-way valve (4) is detachably installed in the installation pipe (3). The one-way valve (4) has a channel that runs from the inside of the vacuum transition bottle (1) toward the outside of the vacuum transition bottle (1).

2. The rotary evaporation waste liquid receiving device as described in claim 1, characterized in that, The bottom of the outer wall of the vacuum transition bottle (1) and the top of the outer wall of the waste liquid receiving bottle (2) both have annular shoulders (5), and the two annular shoulders (5) are connected by clamps (6).

3. The rotary evaporation waste liquid receiving device as described in claim 2, characterized in that, The vacuum transition bottle (1) has a positioning groove (7) on its bottom surface, and the waste liquid receiving bottle (2) has a positioning protrusion (8) on its top surface that matches the positioning groove (7).

4. The rotary evaporation waste liquid receiving device as described in claim 1, characterized in that, The one-way valve (4) is threaded into the installation pipeline (3). When the one-way valve (4) is tightened, the top of the one-way valve (4) is located below the top of the installation pipeline (3).

5. The rotary evaporation waste liquid receiving device as described in claim 4, characterized in that, The one-way valve (4) is provided with a limiting skirt (9) at the bottom end, and a sealing ring is provided on the top surface of the limiting skirt (9). When the one-way valve (4) is tightened and installed, the sealing ring is in close contact with the bottom surface of the installation pipeline (3).

6. The rotary evaporation waste liquid receiving device as described in claim 5, characterized in that, The limiting skirt (9) has a regular hexahedral structure.

7. The rotary evaporation waste liquid receiving device as described in claim 1, characterized in that, The bottom surface of the vacuum transition bottle (1) is set in a funnel shape, and the installation pipeline (3) is connected to the lowest point of the bottom surface of the vacuum transition bottle (1).

8. The rotary evaporation waste liquid receiving device as described in claim 1, characterized in that, The waste liquid receiving bottle (2) is equipped with a discharge valve (10) at its lower end.

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