Volatilization and leakage prevention interface device for liquid chromatograph waste liquid bottle

By designing a anti -width leakage interface device for liquid chromaton scrap bottle, using the gas absorption device to absorb toxic gases, solve the problem of volatilization of toxic substances in the waste bottle of the liquid chromatography, and realize the purification and empty emptying, and the purification and emptying are purified and emptied The effect of environmental protection.

CN222401520UActive Publication Date: 2025-01-28QILU SCHOOL OF MEDICINE
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Patent Information

Application Number
CN202423210092.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-25
Publication Date
2025-01-28
Estimated Expiration
2034-12-25

AI Technical Summary

Technical Problem

The waste liquid bottle of liquid chromatograph is generally only simply sealed or not sealed, causing toxic organic matter to evaporate outside the waste liquid bottle, damaging the laboratory environment, and the existing waste gas filtration devices are complex in structure, high in cost, and have low promotion and application.

Method used

A liquid color spectrometer waste liquid bottle anti -volatile interface device is designed, including waste liquid bottle, sealing and gas absorption device. The gas absorption device absorbs toxic gases through pipe channels and absorbing liquid warehouses to achieve purification and emptying. The device structure is simple, easy to disassemble and replace the absorption solution.

Benefits of technology

Effectively absorb the toxic and volatile substances in the liquid chromatography waste liquid, reduce the impact on the laboratory environment, the installation structure is simple, low in cost, simple operation, and broad application prospects.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of liquid chromatographs, and particularly discloses a liquid chromatograph waste liquid bottle volatilization and leakage prevention connector device which comprises a waste liquid bottle and a bottle opening formed in the top of the waste liquid bottle, a sealing cover matched with the bottle opening is fixedly arranged at the top end of the waste liquid bottle, and a gas absorption device body is fixedly clamped to the top end of the sealing cover. An absorption liquid bin is formed in an inner cavity of the gas absorption device body, a pipeline channel is formed in an inner cavity of the absorption liquid bin and penetrates through the lower end face of the gas absorption device body and the absorption liquid bin, a slit type channel matched with the pipeline channel is formed in the side wall of the gas absorption device body in a penetrating mode, and an exhaust pipe and a waste liquid pipe are arranged in the pipeline channel. The gas absorption device can achieve the effects of purification and emptying, reduces the influence of toxic waste liquid on the environment of a laboratory, can be disassembled and assembled under the condition that the exhaust pipe and the waste liquid pipe are not pulled out, facilitates the replacement of absorption liquid, and is simple, effective and wide in application prospect.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of liquid chromatographs, and specifically discloses an anti-volatile leakage interface device for a waste liquid bottle of a liquid chromatograph. Background Art

[0002] Liquid chromatograph is an analytical instrument widely used in the fields of chemistry, pharmacy, medical analysis, environmental testing, etc. It is mainly used for the separation and identification of mixtures. As a basic and general analytical instrument, liquid chromatograph is widely used and widely used, and is a common instrument in laboratories.

[0003] Liquid chromatographs use mobile phase as a sample carrier. The mobile phase carrying the sample enters the chromatographic column, which separates the sample. The mobile phase and sample then enter the detector to detect and analyze the sample. After the analysis, the mobile phase is discharged as waste liquid. Commonly used liquid chromatography mobile phases include organic reagents such as methanol, acetonitrile, n-hexane, and tetrahydrofuran, most of which are toxic and highly volatile. As a liquid chromatography consumable, the mobile phase will be discharged into the waste liquid bottle after use, and collected and treated uniformly.

[0004] In the laboratory, the waste liquid bottle that receives the mobile phase waste liquid is generally simply sealed or not sealed. Since the organic solvents such as methanol, acetonitrile, and tetrahydrofuran in the waste liquid are highly volatile, if the waste liquid bottle mouth is not effectively sealed or filtered, toxic organic matter will evaporate to the outside of the waste liquid bottle and cause leakage, damaging the laboratory environment. In addition, long-term inhalation of methanol gas by laboratory personnel will cause damage to the central nervous system and vision. Although there are waste gas filtration devices on the market, these devices are generally complex in structure and high in price, and their promotion and application are not high. Utility Model Content

[0005] In view of the above deficiencies in the prior art, the utility model provides an anti-volatile leakage interface device for the waste liquid bottle of a liquid chromatograph to solve the problem that the waste liquid bottles in the laboratory are generally only simply sealed or not sealed, and toxic organic matter will evaporate to the outside of the waste liquid bottle and cause leakage, damaging the laboratory environment, and the current liquid chromatograph waste gas filtering devices are generally complex in structure, high in cost, and have a low degree of promotion and application.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] The liquid chromatograph waste liquid bottle anti-volatile leakage interface device comprises a waste liquid bottle and a bottle mouth opened on the top of the waste liquid bottle, a sealing cover is fixedly arranged on the top of the waste liquid bottle in cooperation with the bottle mouth, a gas absorption device body is fixedly clamped on the top of the sealing cover, an absorption liquid tank is provided in the inner cavity of the gas absorption device body, a pipeline channel is provided in the inner cavity of the absorption liquid tank, and the pipeline channel passes through the lower end surface of the gas absorption device body and the absorption liquid tank, a slit channel is provided on the side wall of the gas absorption device body in cooperation with the pipeline channel, an exhaust pipe and a waste liquid pipe are provided in the pipeline channel, one end of the exhaust pipe and the waste liquid pipe are both located in the waste liquid bottle, the other end of the exhaust pipe is located in the absorption liquid tank, and the other end of the waste liquid pipe extends to the outside of the gas absorption device body.

[0008] Furthermore, the gas absorption device body and the sealing cover are both cylindrical structures, and the pipeline channel extends radially inward from the side wall of the gas absorption device body to the middle of the gas absorption device body.

[0009] Furthermore, the pipeline channel and the absorption liquid tank are separated by a partition, and the partition is fixedly arranged at the bottom end of the inner cavity of the gas absorption device body, and the height of the partition is smaller than the height of the inner cavity of the gas absorption device body.

[0010] Furthermore, one end of the exhaust pipe away from the waste liquid bottle extends through the top of the partition into the absorption liquid tank.

[0011] Furthermore, the width of the slit channel is matched with the diameters of the exhaust pipe and the waste liquid pipe, and the slit channel is inclined.

[0012] Furthermore, a top cover is rotatably provided at the top of the gas absorption device body, a through groove is provided on the top cover to cooperate with the pipeline channel, and the waste liquid pipe is provided to penetrate the through groove.

[0013] Furthermore, a connecting piece is fixedly provided on the top of the gas absorption device body, and the top cover and the connecting piece are rotatably connected.

[0014] Furthermore, a clamping groove is fixedly provided on the top of the sealing cover, and the clamping groove is a circular ring structure, and the gas absorption device body is fixedly clamped with the sealing cover through the clamping groove.

[0015] Furthermore, the outer diameter of the slot is matched with the outer diameter of the sealing cover, and the inner diameter of the slot is matched with the outer diameter of the gas absorption device body.

[0016] Furthermore, the sealing cover is provided with two sealing joints to cooperate with the exhaust pipe and the waste liquid pipe to penetrate therethrough, and the exhaust pipe and the waste liquid pipe are respectively arranged in the two sealing joints.

[0017] The beneficial effects of the utility model are:

[0018] When liquid chromatography waste liquid enters the waste liquid bottle, the toxic and volatile gas in the bottle is discharged from the exhaust pipe along with the air. The exhaust pipe passes through the pipeline channel and is inserted into the absorption liquid contained in the absorption liquid tank. The toxic gas is absorbed by the absorption liquid, thereby achieving the effect of purification and emptying, and reducing the impact of toxic waste liquid on the laboratory environment; the gas absorption device body and the sealing cover are mutually clamped, and a slit channel is opened on the side wall of the gas absorption device body to cooperate with the pipeline channel to penetrate, so the gas absorption device body can be disassembled and assembled without pulling out the exhaust pipe and the waste liquid pipe, which is convenient for replacing the absorption liquid. The device is simple and effective, economical and practical, and has broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 It is a schematic diagram of the structure of the gas absorption device body, top cover, connecting piece, slit channel and through groove of the utility model;

[0021] Figure 3 It is a structural cross-sectional view of the pipeline channel, top cover, absorption liquid tank, exhaust pipe, waste liquid pipe, partition and through groove of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the sealing cover, the clamping groove and the sealing joint of the utility model;

[0023] Figure 5 The utility model is a top view of the sealing cover, the clamping groove and the sealing joint.

[0024] In the figure: 1. Gas absorption device body; 101. Pipe channel; 102. Top cover; 103. Connector; 104. Slit channel; 105. Absorption liquid tank; 106. Exhaust pipe; 107. Waste liquid pipe; 108. Partition; 109. Through groove; 2. Sealing cover; 201. Card slot; 202. Sealing joint; 3. Waste liquid bottle. DETAILED DESCRIPTION

[0025] The utility model is described and illustrated in detail below in conjunction with the accompanying drawings.

[0026] Example 1

[0027] like Figure 1-5As shown, the liquid chromatograph waste liquid bottle anti-volatile leakage interface device comprises a waste liquid bottle 3 and a bottle mouth opened on the top of the waste liquid bottle 3, a sealing cover 2 is fixedly provided on the top of the waste liquid bottle 3 in cooperation with the bottle mouth, a gas absorption device body 1 is fixedly clamped on the top of the sealing cover 2, an absorption liquid tank 105 is provided in the inner cavity of the gas absorption device body 1, a pipeline channel 101 is provided in the inner cavity of the absorption liquid tank 105, and the pipeline channel 101 passes through the lower end surface of the gas absorption device body 1 and the absorption liquid tank 105, a slit channel 104 is provided on the side wall of the gas absorption device body 1 in cooperation with the pipeline channel 101, an exhaust pipe 106 and a waste liquid pipe 107 are provided in the pipeline channel 101, one end of the exhaust pipe 106 and the waste liquid pipe 107 are both located in the waste liquid bottle 3, the other end of the exhaust pipe 106 is located in the absorption liquid tank 105, and the other end of the waste liquid pipe 107 extends to the outside of the gas absorption device body 1.

[0028] The absorption liquid is contained in the absorption liquid bin 105, and the absorption liquid includes water, carbon tetrachloride, sodium bicarbonate solution, liquid paraffin and other reagents, which are selected according to the type of liquid chromatography mobile phase; when the liquid chromatography waste liquid enters the waste liquid bottle 3, the toxic and volatile gas in the waste liquid bottle 3 is discharged from the exhaust pipe 106 along with the air, and the exhaust pipe 106 passes through the pipeline channel 101 and is inserted into the absorption liquid contained in the absorption liquid bin 105, and the toxic gas is absorbed by the absorption liquid, thereby achieving the effect of purification and emptying, and reducing the impact of the toxic waste liquid on the laboratory environment; the gas absorption device body 1 and the sealing cover 2 are mutually clamped, and a slit channel 104 is opened on the side wall of the gas absorption device body 1 to cooperate with the pipeline channel 101 to penetrate, so that the gas absorption device body 1 can be disassembled and assembled without pulling out the exhaust pipe 106 and the waste liquid pipe 107, which is convenient for replacing the absorption liquid. The device is simple and effective, economical and practical, and has broad application prospects.

[0029] The gas absorption device body 1 and the sealing cover 2 are both cylindrical structures, and the pipeline channel 101 extends radially inward from the side wall of the gas absorption device body 1 to the middle of the gas absorption device body 1.

[0030] The pipeline channel 101 and the absorption liquid tank 105 are separated by a partition 108, which is fixedly arranged at the bottom end of the inner cavity of the gas absorption device body 1, and the height of the partition 108 is smaller than the height of the inner cavity of the gas absorption device body 1. It is convenient for the exhaust pipe 106 to enter the absorption liquid contained in the absorption liquid tank 105 from above the partition 108.

[0031] One end of the exhaust pipe 106 away from the waste liquid bottle 3 extends through the top of the partition 108 to the absorption liquid tank 105.

[0032] The width of the slit channel 104 is matched with the diameter of the exhaust pipe 106 and the waste liquid pipe 107, and the slit channel 104 is tilted. The width of the slit channel 104 is matched with the diameter of the exhaust pipe 106 and the waste liquid pipe 107, so that the exhaust pipe 106 and the waste liquid pipe 107 can smoothly enter and exit the gas absorption device body 1; the slit channel 104 is tilted, so that the exhaust pipe 106 and the waste liquid pipe 107 can be prevented from escaping from the device through the slit channel 104 during use, thereby ensuring the stable operation of the device.

[0033] A top cover 102 is rotatably provided at the top of the gas absorption device body 1, and a through groove 109 is provided on the top cover 102 to cooperate with the pipeline channel 101, and a waste liquid pipe 107 is provided to penetrate the through groove 109. By rotating the top cover 102, the absorption liquid can be replaced by opening the top cover 102 after the absorption liquid is saturated.

[0034] A connecting piece 103 is fixedly provided on the top of the gas absorption device body 1, and the top cover 102 and the connecting piece 103 are rotatably connected.

[0035] A clamping groove 201 is fixedly provided on the top of the sealing cover 2 . The clamping groove 201 is a circular ring structure. The gas absorption device body 1 is fixedly clamped with the sealing cover 2 through the clamping groove 201 .

[0036] The outer diameter of the slot 201 matches the outer diameter of the sealing cover 2, and the inner diameter of the slot 201 matches the outer diameter of the gas absorber body 1. The gas absorber body 1 and the slot 201 are mutually engaged, so that the gas absorber body 1 can be easily disassembled and assembled.

[0037] The sealing cover 2 is provided with two sealing joints 202 for the exhaust pipe 106 and the waste liquid pipe 107 to penetrate, and the exhaust pipe 106 and the waste liquid pipe 107 are respectively arranged in the two sealing joints 202. The sealing joints 202 can ensure the sealing of the waste liquid bottle 3, and further ensure that all the toxic gases discharged from the waste liquid bottle 3 enter the absorption liquid contained in the absorption liquid tank 105 through the exhaust pipe 106.

[0038] When in use, liquid chromatography waste liquid is discharged into the waste liquid bottle 3 through the waste liquid pipe 107, and the gas in the waste liquid bottle 3 is discharged through the exhaust pipe 106. The exhaust pipe 106 passes through the sealing cover 2, the pipeline channel 101 and the partition 108 and is immersed in the absorption liquid in the absorption liquid tank 105. Toxic volatile substances such as methanol and acetonitrile contained in the gas are absorbed by the absorption liquid, and other air components such as oxygen and nitrogen are discharged through the through groove 109; the gas absorption device body 1 is detachable and is limited by the card slot 201 and the waste liquid pipe 107 passing through the pipeline channel 101; the utility model can effectively absorb toxic and volatile substances in liquid chromatography waste liquid, has a simple structure, low cost and easy operation.

Claims

1. A liquid chromatograph waste liquid bottle anti-volatile leakage interface device, comprising a waste liquid bottle (3) and a bottle mouth opened at the top of the waste liquid bottle (3), characterized in that: A sealing cover (2) is fixedly provided at the top of the waste liquid bottle (3) in cooperation with the bottle mouth, and a gas absorption device body (1) is fixedly clamped at the top of the sealing cover (2). An absorption liquid bin (105) is provided in the inner cavity of the gas absorption device body (1), and a pipeline channel (101) is provided in the inner cavity of the absorption liquid bin (105), and the pipeline channel (101) penetrates the lower end surface of the gas absorption device body (1) and the absorption liquid bin (105). A slit channel (104) is provided on the side wall of the gas absorption device body (1) in cooperation with the pipeline channel (101), and an exhaust pipe (106) and a waste liquid pipe (107) are provided in the pipeline channel (101), one end of each of the exhaust pipe (106) and the waste liquid pipe (107) is located in the waste liquid bottle (3), the other end of the exhaust pipe (106) is located in the absorption liquid bin (105), and the other end of the waste liquid pipe (107) extends to the outside of the gas absorption device body (1).

2. The liquid chromatograph waste liquid bottle anti-volatile leakage interface device according to claim 1, characterized in that: The gas absorption device body (1) and the sealing cover (2) are both cylindrical structures, and the pipeline channel (101) extends radially inward from the side wall of the gas absorption device body (1) to the middle of the gas absorption device body (1).

3. The liquid chromatograph waste liquid bottle anti-volatile leakage interface device according to claim 1, characterized in that: The pipeline channel (101) and the absorption liquid tank (105) are separated by a partition (108), and the partition (108) is fixedly arranged at the bottom end of the inner cavity of the gas absorption device body (1), and the height of the partition (108) is less than the height of the inner cavity of the gas absorption device body (1).

4. The liquid chromatograph waste liquid bottle anti-volatile leakage interface device according to claim 3, characterized in that: One end of the exhaust pipe (106) away from the waste liquid bottle (3) extends through the top of the partition (108) into the absorption liquid tank (105).

5. The liquid chromatograph waste liquid bottle anti-volatile leakage interface device according to claim 1, characterized in that: The width of the slit channel (104) is matched with the diameters of the exhaust pipe (106) and the waste liquid pipe (107), and the slit channel (104) is inclined.

6. The liquid chromatograph waste liquid bottle anti-volatile leakage interface device according to claim 1, characterized in that: A top cover (102) is rotatably provided at the top of the gas absorption device body (1), a through groove (109) is provided on the top cover (102) to cooperate with the pipeline channel (101), and a waste liquid pipe (107) is provided to penetrate the through groove (109).

7. The liquid chromatograph waste liquid bottle anti-volatile leakage interface device according to claim 6, characterized in that: A connecting piece (103) is fixedly provided on the top of the gas absorption device body (1), and the top cover (102) and the connecting piece (103) are rotatably connected.

8. The liquid chromatograph waste liquid bottle anti-volatile leakage interface device according to claim 2, characterized in that: A clamping groove (201) is fixedly provided at the top end of the sealing cover (2); the clamping groove (201) is a circular ring structure; the gas absorption device body (1) is fixedly clamped with the sealing cover (2) via the clamping groove (201).

9. The liquid chromatograph waste liquid bottle anti-volatile leakage interface device according to claim 8, characterized in that: The outer diameter of the card slot (201) and the outer diameter of the sealing cover (2) are matched and arranged, and the inner diameter of the card slot (201) and the outer diameter of the gas absorption device body (1) are matched and arranged.

10. The liquid chromatograph waste liquid bottle anti-volatile leakage interface device according to claim 1, characterized in that: The sealing cover (2) is provided with two sealing joints (202) which are arranged to cooperate with the exhaust pipe (106) and the waste liquid pipe (107) to penetrate through the sealing cover. The exhaust pipe (106) and the waste liquid pipe (107) are respectively arranged in the two sealing joints (202).