Waste liquid collecting device for liquid chromatograph

Abstract

The utility model relates to the technical field of waste liquid collection, in particular to a waste liquid collection device for a liquid chromatograph, which adopts the technical scheme that the waste liquid collection device comprises a collection tank and a rotating shaft, a controller and an alarm which are symmetrically distributed are arranged at the upper end of a first threaded cover, and a floating ball liquid level meter is arranged on one side of the lower end surface of the first threaded cover; an exhaust pipe is embedded in one side of the upper end face of the first threaded cover, an adsorption pipe is installed at the tail end of the exhaust pipe, an activated carbon adsorption layer is arranged in the adsorption pipe, the rotating shaft is rotatably installed at the center of the lower end face of the first threaded cover, a mounting block is installed at the tail end of the rotating shaft, and a mounting groove is formed in the lower end of the mounting block; a rubber rod is mounted at the tail end of the mounting shaft, and bristles are arranged on the outer surface of the rubber rod. The device has the advantages that the liquid level of waste liquid can be detected, the waste liquid is prevented from overflowing, meanwhile, discharged organic gas is adsorbed, pollution and harm are prevented, and the device is convenient to clean.

Description

Technical Field

[0001] The utility model relates to the technical field, and particularly relates to a waste liquid collection device for a liquid chromatograph. Background Technique

[0002] A liquid chromatograph refers to an instrument that uses the difference in the distribution ratio of a mixture between a liquid-solid or two immiscible liquids to separate the mixture first and then analyze and identify it. According to whether the stationary phase is a liquid or a solid, the liquid chromatograph is further divided into liquid-liquid chromatography and liquid-solid chromatography. After the liquid chromatograph is used, residual liquid often remains in the internal pipeline, which affects the next test result. Therefore, after the liquid chromatograph is used, the internal pipeline needs to be cleaned, and waste liquid will be generated.

[0003] At present, the waste liquid in most laboratories is simply collected in bottles. Not only is it not timely discovered when the waste liquid overflows, but it also pollutes the environment. There is also a specially set waste liquid collection device. However, after the waste liquid collection device is used, it is not convenient to clean inside, which is not conducive to the safety of using the waste liquid collection device. Content of the Utility Model

[0004] The purpose of the utility model is to provide a waste liquid collection device for a liquid chromatograph, which has the advantages of being able to detect the liquid level of waste liquid, prevent waste liquid from overflowing, adsorb the discharged organic gas at the same time, prevent pollution and harm, and be convenient for cleaning, and solves the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: A waste liquid collection device for a liquid chromatograph, including a collection tank and a rotating shaft. The upper end of the collection tank is provided with a circular opening, and the upper end of the collection tank is threadedly installed with a first threaded cover. The upper end of the first threaded cover is provided with a controller and an alarm arranged symmetrically. One side of the lower end face of the first threaded cover is provided with a float level gauge. One side of the upper end face of the first threaded cover is embedded with an exhaust pipe. A third valve is arranged on the exhaust pipe. The end of the exhaust pipe is installed with an adsorption pipe, and an activated carbon adsorption layer is arranged inside the adsorption pipe. The rotating shaft is rotatably installed at the center of the lower end face of the first threaded cover. The end of the rotating shaft is installed with a mounting block, and a mounting groove is opened at the lower end of the mounting block. The starting end of the mounting shaft is installed with a positioning block, and the positioning block is located in the mounting groove. The end of the mounting shaft is installed with a rubber rod, and bristles are arranged on the outer surface of the rubber rod.

[0006] Preferably, a liquid discharge pipe communicated with the collection tank is arranged at the lower position of the side end face of the collection tank, and a first valve is arranged on the liquid discharge pipe.

[0007] Preferably, a liquid inlet pipe is embedded at the symmetric position of the upper end face of the first threaded cover with respect to the exhaust pipe, and a second valve is arranged on the liquid inlet pipe.

[0008] Preferably, a second threaded cap is installed at the upper end of the adsorption tube in a threaded manner. The lower end of the second threaded cap presses on the upper end of the activated carbon adsorption layer, and the upper end of the second threaded cap is open.

[0009] Preferably, a driving device is installed at the upper end of the first threaded cap, and the main shaft of the driving device is connected to the axis of the rotating shaft.

[0010] Preferably, a threaded hole penetrating the mounting block is formed at the side end of the mounting block, and a mounting hole corresponding to the threaded hole is formed at the side end of the positioning block. A threaded pin is installed in the mounting hole and the threaded hole in a threaded manner.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. When collecting waste liquid, the liquid level height of the waste liquid can be detected by the float liquid level gauge. When the liquid level height of the waste liquid is sufficient, the alarm will work, which can prompt the staff that the waste in the collection tank is full and prevent the waste liquid from overflowing.

[0013] 2. While collecting the waste liquid, open the third valve on the exhaust pipe. The air in the collection tank can be discharged from the exhaust pipe, and the discharged air can enter the adsorption tube. The volatile organic gases can be adsorbed by the activated carbon adsorption layer, preventing the organic gases from polluting the working environment and causing harm to the human body of the staff, and protecting the environment and personal safety.

[0014] 3. After the waste liquid in the collection tank is discharged, install a brushing structure and add cleaning liquid at the same time. The driving device works to rotate the rotating shaft, and the inner part of the collection tank can be brushed under the cooperation of the rubber rod and the brush bristles, which is convenient for cleaning the inner part of the collection tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the front view structural schematic diagram of the present utility model;

[0016] Figure 2 is the sectional view structural schematic diagram of the present utility model;

[0017] Figure 3 is the bottom view structural schematic diagram of the first threaded cap of the present utility model;

[0018] Figure 4 is the structural schematic diagram at the rotating shaft of the present utility model;

[0019] Figure 5 is the structural schematic diagram at the adsorption tube of the present utility model.

[0020] The reference numerals and names in the drawings are as follows:

[0021] 10. Collection tank; 11. Drain pipe; 2. First threaded cap; 21. Controller; 22. Liquid inlet pipe; 23. Alarm; 24. Exhaust pipe; 25. Adsorption pipe; 26. Second threaded cap; 27. Float level gauge; 28. Activated carbon adsorption layer; 3. Rotating shaft; 31. Driving device; 32. Mounting shaft; 33. Rubber rod; 34. Brush bristles; 35. Mounting block; 36. Mounting groove; 37. Positioning block. Detailed implementation manners

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Embodiment 1

[0024] Please refer to Figures 1 to 5 , an embodiment provided by the present invention: A waste liquid collection device for a liquid chromatograph, including:

[0025] A collection tank 10 and a rotating shaft 3. The upper end of the collection tank 10 is provided with a circular opening. The upper end of the collection tank 10 is threadedly installed with a first threaded cap 2. The upper end of the first threaded cap 2 is provided with a controller 21 and an alarm 23 which are symmetrically distributed. The controller 21 is used to control the equipment in the present invention. The controller 21 can adopt a PLC programmable controller. One side of the lower end face of the first threaded cap 2 is provided with a float level gauge 27. One side of the upper end face of the first threaded cap 2 is embedded with an exhaust pipe 24. A third valve is provided on the exhaust pipe 24. The end of the exhaust pipe 24 is installed with an adsorption pipe 25. An activated carbon adsorption layer 28 is arranged in the adsorption pipe 25.

[0026] In this embodiment, when collecting waste liquid, the waste liquid is collected from the liquid inlet pipe 22 and enters the collection tank 10. After the waste liquid enters the collection tank 10, the liquid level of the waste liquid rises. The float level gauge 27 can detect the height of the waste liquid level. When the height of the waste liquid level is sufficient, the alarm 23 will perform an alarm operation, which can prompt the staff that the waste in the collection tank 10 is full and the collection of waste liquid can be stopped in time. When collecting waste liquid, the third valve on the exhaust pipe 24 is opened, and the air in the collection tank 10 can be discharged from the exhaust pipe 24. The discharged air can enter the adsorption pipe 25, and the volatile organic gases can be adsorbed through the activated carbon adsorption layer 28, protecting the environment and personal safety.

[0027] Further, a liquid discharge pipe 11 communicating with the collection tank 10 is provided at the lower position of the side end face of the collection tank 10, and a first valve is provided on the liquid discharge pipe 11. The liquid discharge pipe 11 can discharge the waste liquid in the collection tank 10.

[0028] Further, a liquid inlet pipe 22 is embedded and installed at a position symmetric to the exhaust pipe 24 on the upper end face of the first threaded cap 2, and a second valve is provided on the liquid inlet pipe 22. When collecting waste liquid, the second valve is opened, and the waste liquid can be collected into the collection tank 10 through the liquid inlet pipe 22.

[0029] Further, a second threaded cap 26 is threadedly installed at the upper end of the adsorption tube 25. The lower end of the second threaded cap 26 presses on the upper end of the activated carbon adsorption layer 28, and the upper end of the second threaded cap 26 is open. The second threaded cap 26 can position the activated carbon adsorption layer 28.

[0030] Embodiment 2

[0031] Please refer to Figures 1 to 5 , an embodiment provided by the present utility model: a waste liquid collection device for a liquid chromatograph. Compared with Embodiment 1, this embodiment further includes:

[0032] The rotating shaft 3 is rotatably installed at the center of the lower end face of the first threaded cap 2. An installation block 35 is installed at the end of the rotating shaft 3. An installation groove 36 is opened at the lower end of the installation block 35. A positioning block 37 is installed at the beginning end of the installation shaft 32. The positioning block 37 is located in the installation groove 36. A rubber rod 33 is installed at the end of the installation shaft 32. Brush hairs 34 are provided on the outer surface of the rubber rod 33. The rubber rod 33 can be deformed to facilitate entering the collection tank 10 for scrubbing work.

[0033] In this embodiment, after the waste liquid in the collection tank 10 is discharged, the first threaded cap 2 is removed, the installation shaft 32 is installed at the end of the rotating shaft 3, and then the first threaded cap 2 is installed so that the rubber rod 33 enters the collection tank 10. At the same time, a cleaning liquid is added. By operating the driving device 31, the rotating shaft 3 can be rotated. The collection tank 10 can be scrubbed through the rubber rod 33 and the brush hairs 34, which is convenient for cleaning the collection tank 10.

[0034] Further, a driving device 31 is installed on the upper end of the first threaded cap 2. The main shaft of the driving device 31 is connected to the axis of the rotating shaft 3. By operating the driving device 31, the rotating shaft 3 can be rotated.

[0035] Further, a threaded hole penetrating the installation block 35 is opened at the side end of the installation block 35. An installation hole corresponding to the threaded hole is opened at the side end of the positioning block 37. A threaded pin is threadedly installed in the installation hole and the threaded hole. The installation block 35 and the positioning block 37 can facilitate the installation and disassembly of the installation shaft 32.

[0036] The controller 21, the alarm 23, the float level gauge 27, and the driving device 31 in the present utility model are well-known to those skilled in the art. Their electrical connections and working principles are all conventional means or common knowledge, and will not be elaborated herein. Those skilled in the art can make any selection according to their needs or convenience.

[0037] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claimed rights.

Claims

1. A waste liquid collection device for a liquid chromatograph, comprising a collection tank (10) and a rotating shaft (3), characterized in that: The upper end of the collecting tank (10) is provided with a circular opening, the upper end of the collecting tank (10) is threadedly mounted with a first threaded cover (2), the upper end of the first threaded cover (2) is provided with a symmetrically distributed controller (21) and an alarm (23), a floating ball level gauge (27) is provided on one side of the lower end surface of the first threaded cover (2), an exhaust pipe (24) is embedded and mounted on one side of the upper end surface of the first threaded cover (2), a third valve is provided on the exhaust pipe (24), and an adsorption pipe (25) is installed at the end of the exhaust pipe (24) An activated carbon adsorption layer (28) is arranged in the adsorption tube (25), the rotating shaft (3) is rotatably mounted at the center of the lower end surface of the first threaded cover (2), a mounting block (35) is mounted at the end of the rotating shaft (3), a mounting groove (36) is provided at the lower end of the mounting block (35), a positioning block (37) is mounted at the beginning of the mounting shaft (32), the positioning block (37) is located in the mounting groove (36), a rubber rod (33) is mounted at the end of the mounting shaft (32), and bristles (34) are arranged on the outer surface of the rubber rod (33).

2. A waste liquid collection device for a liquid chromatograph according to claim 1, characterized in that: A liquid discharge pipe (11) communicating with the collecting tank (10) is provided at a lower position of a side end surface of the collecting tank (10), and a first valve is provided on the liquid discharge pipe (11).

3. A waste liquid collection device for a liquid chromatograph according to claim 1, characterized in that: A liquid inlet pipe (22) is embedded and installed on the upper end surface of the first threaded cover (2) at a symmetrical position of the exhaust pipe (24), and a second valve is arranged on the liquid inlet pipe (22).

4. A waste liquid collection device for a liquid chromatograph according to claim 1, characterized in that: The upper end of the adsorption tube (25) is threadedly mounted with a second threaded cover (26), the lower end of the second threaded cover (26) is pressed against the upper end of the activated carbon adsorption layer (28), and the upper end of the second threaded cover (26) is open.

5. A waste liquid collection device for a liquid chromatograph according to claim 1, characterized in that: A driving device (31) is installed at the upper end of the first threaded cover (2), and the main shaft of the driving device (31) is connected to the axis of the rotating shaft (3).

6. A waste liquid collection device for a liquid chromatograph according to claim 1, characterized in that: A threaded hole penetrating the mounting block (35) is provided at the side end of the mounting block (35), and a mounting hole corresponding to the threaded hole is provided at the side end of the positioning block (37), and a threaded pin is threadedly installed in the mounting hole and the threaded hole.

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