A liquid chromatography tandem mass spectrometer waste gas treatment device

Abstract

The utility model belongs to liquid chromatography tandem mass spectrometer technical field, specifically speaking is a kind of liquid chromatography tandem mass spectrometer waste gas treatment equipment, including mass spectrometer main part, the rear side of mass spectrometer main part is provided with waste gas treatment box, and the waste gas treatment box includes connecting box, first runner, gas guide pipe, pipeline, gas outlet, grating plate, recess and second runner, first runner is opened in the left and right side wall of connecting box inner chamber front side, filter frame is arranged in the first runner, active carbon is equipped in filter frame middle, and filter frame moves up and down in the first runner, gas guide pipe is arranged in connecting box inner chamber, the rear side of gas guide pipe is provided with pipeline, the lower rear of connecting box is provided with swivel block and washing tank;Through the adsorption filter of filter frame to waste gas, the filtered waste gas is then passed through gas guide pipe, pipeline and inlet pipe into the box body, is filtered secondary by washing liquid in the box body, effectively improve the filtering effect.

Description

Technical Field

[0001] This utility model belongs to the technical field of liquid chromatography-tandem mass spectrometry, specifically a waste gas treatment device for liquid chromatography-tandem mass spectrometry. Background Technology

[0002] Liquid chromatography-tandem mass spectrometry is mainly used in the life sciences field for the detection of pesticide residues in basic research, drug discovery and development, functional medicine, food safety and environmental analysis, as well as for trace analysis in forensic toxicology and clinical research, quantitative and qualitative studies in food testing, environmental analysis, toxicology testing and pharmacokinetics.

[0003] In the prior art, CN220773003U discloses an exhaust gas emission device for a tandem mass spectrometer, including an exhaust box, an atomizing spray mechanism, filter cotton, and a suction pump. The exhaust box has an air inlet that communicates with the exhaust port of the tandem mass spectrometer. The filter cotton is connected inside the exhaust box. The atomizing spray mechanism is connected to the exhaust box and is used to atomize and spray the filter cotton into the space between the filter cotton and the side wall of the exhaust box where the air inlet is located. The suction pump is connected to the interior of the exhaust box and is located away from the filter cotton and the air inlet. This application reduces the possibility of exhaust gas corroding the suction pump, thereby reducing the frequency of pump maintenance or replacement.

[0004] In the aforementioned patent, a filter cotton is connected inside the exhaust box, and an atomizing spray mechanism is connected to the exhaust box. The atomizing spray mechanism is used to atomize and spray the filter cotton inside the exhaust box and the side wall of the exhaust box where the air inlet is opened. The air pump is connected to the inside of the exhaust box, which can reduce the possibility of exhaust gas corroding the air pump, thereby reducing the frequency of maintenance or replacement of the air pump. However, this exhaust gas treatment equipment still has some problems. 1. The exhaust gas emission device is only equipped with filter cotton, resulting in a single filtration function and thus a poor filtration effect; 2. The filter cotton structure inside the exhaust gas emission device is fixed and inconvenient to disassemble, which makes it difficult to replace the filter cotton.

[0005] Therefore, a liquid chromatography-tandem mass spectrometry exhaust gas treatment device is proposed to address the above problems. Utility Model Content

[0006] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a liquid chromatography-tandem mass spectrometry exhaust gas treatment device, which solves the problem that the exhaust gas emission devices in the prior art have a single filtration function, resulting in poor filtration effect and inconvenience in replacing filter cotton.

[0007] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a liquid chromatography-tandem mass spectrometry (LC-MS / MS) exhaust gas treatment device, comprising a mass spectrometer body, an exhaust gas treatment box disposed on the rear side of the mass spectrometer body, the exhaust gas treatment box comprising a connecting box, a first chute, a gas guide pipe, a pipe, an exhaust port, a grid plate, a groove, and a second chute, the first chute being formed on the left and right side walls of the front side of the inner cavity of the connecting box, a filter frame disposed within the first chute, activated carbon disposed in the middle of the filter frame, and the filter frame moving up and down within the first chute, the gas guide pipe being disposed within the inner cavity of the connecting box, the pipe being disposed on the rear side of the gas guide pipe, the exhaust port being formed on the rear side of the connecting box, a fan disposed within the exhaust port, the grid plate being disposed at the rear opening of the connecting box, and a rotating block and a washing box disposed at the lower rear of the connecting box.

[0008] Furthermore, the four front sides of the air guide tube are fixedly connected to the wall of the connecting box, the rear side of the air guide tube is fixedly connected to the front end of the pipe, and the pipe communicates with the inner cavity of the air guide tube.

[0009] Furthermore, the four sides of the grille are fixedly connected to the inner wall of the rear end of the connecting box, and the rear ends of the two fans are symmetrically fixed on the front side wall of the air outlet.

[0010] Furthermore, the washing box includes a box body, an air inlet pipe, an air outlet pipe, a slider, and a slot. The slider is fixed on the front of the box body, and the second slot is formed on the lower rear wall of the box, and the second slot is slidably connected to the slider.

[0011] Furthermore, the slot is located at the bottom of the housing and the slider, the rotating block is rotatably connected to the rear bottom of the connecting box, and the rotating block is fitted into the slot. The upper end of the air intake pipe is fixedly connected to the top of the connecting box, a second rubber ring is embedded in the upper end of the air intake pipe, the lower end of the pipe is fitted into the housing and the air intake pipe, and the upper part of the second rubber ring is attached to the lower end of the pipe.

[0012] Furthermore, the vent pipe is located on the top of the housing, and a first rubber ring is provided on the vent pipe. The first rubber ring is fitted and connected to the vent pipe opening. The upper end of the vent pipe is fitted and connected to the groove, and the upper surface of the first rubber ring is fitted and connected to the groove.

[0013] (III) Beneficial Effects Compared with the prior art, this utility model provides a liquid chromatography-tandem mass spectrometry exhaust gas treatment device, which has the following beneficial effects: 1. This liquid chromatography-tandem mass spectrometry exhaust gas treatment equipment uses a filter frame to perform adsorption filtration of the exhaust gas. The filtered exhaust gas then enters the chamber through a gas guide pipe, pipeline, and inlet pipe, where it undergoes secondary filtration through a washing liquid inside the chamber, effectively improving the filtration effect.

[0014] 2. This liquid chromatography-tandem mass spectrometry exhaust gas treatment device allows the filter frame to be removed or embedded in the connecting box by pulling it up and down in the first slide groove. Rotating the rotating block allows it to be embedded in or removed from the slot. When the rotating block is removed from the slot, pushing the box downwards moves the slider downwards in the second slide groove, allowing the box to be removed. Pushing the box upwards moves the slider upwards in the second slide groove, allowing the box to be fixedly installed. Rotating the rotating block allows it to be embedded in the slot, limiting and fixing the box, which facilitates the replacement of the filter frame and the box. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a three-dimensional cross-sectional view of the present invention; Figure 3 This is a three-dimensional cross-sectional view of the box body of this utility model.

[0016] Legend: 1. Mass spectrometer main body; 2. Exhaust gas treatment box; 201. Connection box; 202. First slide groove; 203. Gas guide pipe; 204. Pipe; 205. Gas outlet; 206. Grille plate; 207. Groove; 208. Second slide groove; 3. Filter frame; 4. Washing box; 401. Box body; 402. Inlet pipe; 403. Outlet pipe; 404. Slider; 405. Slot; 5. Rotary block; 6. Fan; 7. First rubber ring; 8. Second rubber ring. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0018] Specific implementation examples are given below.

[0019] Please see Figures 1-3 This utility model provides a liquid chromatography-tandem mass spectrometry (LC-MS / MS) exhaust gas treatment device, including a mass spectrometer body 1. An exhaust gas treatment box 2 is arranged on the rear side of the mass spectrometer body 1. The exhaust gas treatment box 2 includes a connecting box 201, a first chute 202, a gas guide pipe 203, a pipe 204, a gas outlet 205, a grid plate 206, a groove 207, and a second chute 208. The first chute 202 is formed on the left and right side walls of the front side of the inner cavity of the connecting box 201. A filter frame 3 is arranged in the first chute 202, and activated carbon is placed in the middle of the filter frame 3. The filter frame 3 can move up and down in the first chute 202. An air duct 203 is installed inside the connecting box 201. A pipe 204 is located behind the air duct 203. An air outlet 205 is located at the rear of the connecting box 201. A fan 6 is installed inside the air outlet 205. A grille 206 is located at the rear opening of the connecting box 201. A rotating block 5 and a washing tank 4 are located at the lower rear of the connecting box 201. The four front sides of the air duct 203 are fixedly connected to the box wall of the connecting box 201. The rear of the air duct 203 is fixedly connected to the front end of the pipe 204, and the pipe 204 communicates with the inner cavity of the air duct 203. The four sides of the grille 206 are... The rear inner wall of the connecting box 201 is fixedly connected. The rear ends of the two fans 6 are symmetrically fixed on the front side wall of the air outlet 205. The washing box 4 includes a box body 401, an air inlet pipe 402, an air outlet pipe 403, a slider 404, and a slot 405. The slider 404 is fixed on the front of the box body 401. The second sliding groove 208 is opened on the rear lower side wall of the connecting box 201, and the second sliding groove 208 is slidably connected to the slider 404. The slot 405 is opened at the bottom of the box body 401 and the slider 404. The rotating block 5 is rotatably connected to the rear bottom of the connecting box 201, and the rotating block 5 is connected to the slot 405. 05. Fitting connection: The upper end of the air inlet pipe 402 is fixedly connected to the top of the connecting box 201. The upper end of the air inlet pipe 402 is fitted with a second rubber ring 8. The lower end of the pipe 204 is fitted and connected to the box 401 and the air inlet pipe 402. The upper part of the second rubber ring 8 is fitted and connected to the lower end of the pipe 204. The air outlet pipe 403 is set on the top of the box 401. The air outlet pipe 403 is provided with a first rubber ring 7, and the first rubber ring 7 is fitted and connected to the opening of the air outlet pipe 403. The upper end of the air outlet pipe 403 is fitted and connected to the groove 207, and the upper part of the first rubber ring 7 is fitted and connected to the groove 207.

[0020] Specifically, the filter frame 3 performs adsorption filtration on the exhaust gas. The filtered exhaust gas then enters the housing 401 through the air guide pipe 203, pipe 204, and air inlet pipe 402. It undergoes secondary filtration through the washing liquid inside the housing 401, which effectively improves the filtration effect. Pulling the filter frame 3 up and down in the first slide groove 202 can remove the filter frame 3 or embed it into the connecting box 201. Rotating the rotating block 5 can embed or dislodge the rotating block 5 into the slot 405. When the rotating block 5 dislodges from the slot 405, pushing the housing 401 downwards causes the slider 404 to move downwards in the second slide groove 208, which can remove the housing 401. Pushing the housing 401 upwards causes the slider 404 to move upwards in the second slide groove 208, which can fix the housing 401 in place. Rotating the rotating block 5 causes the rotating block 5 to embed into the slot 405, which limits and fixes the housing 401, making it convenient to replace the filter frame 3 and the housing 401.

[0021] Working principle: When using this waste gas treatment equipment, first push the filter frame 3 downward in the first slide groove 202, so that the filter frame 3 is embedded in the connecting box 201 and the filter frame 3 is installed. Next, push the box 401 upward to drive the slider 404 upward in the second slide groove 208 to fix the box 401 in place. Rotate the rotating block 5 to embed the rotating block 5 into the slot 405 to limit and fix the box 401. After the box 401 is installed, start the equipment. The waste gas is filtered by adsorption through the filter frame 3. The filtered waste gas then enters the box 401 through the air guide pipe 203, pipe 204 and air inlet pipe 402, and is filtered again by the washing liquid inside the box 401, which effectively filters the waste gas.

[0022] 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 illustrative of the principles of this 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.

Claims

1. A liquid chromatography-tandem mass spectrometry exhaust gas treatment device, comprising a mass spectrometer body (1), characterized in that: The mass spectrometer body (1) is provided with a waste gas treatment box (2) at the rear. The waste gas treatment box (2) includes a connecting box (201), a first chute (202), a gas guide pipe (203), a pipe (204), a gas outlet (205), a grid plate (206), a groove (207), and a second chute (208). The first chute (202) is opened on the left and right side walls of the front side of the inner cavity of the connecting box (201). A filter frame (3) is provided in the first chute (202), and an active filter is provided in the middle of the filter frame (3). The carbon filter (3) moves up and down in the first chute (202), the air guide pipe (203) is set in the inner cavity of the connecting box (201), the pipe (204) is set on the rear side of the air guide pipe (203), the air outlet (205) is opened on the rear side of the connecting box (201), the air outlet (205) is provided with a fan (6), the grid plate (206) is set on the rear opening of the connecting box (201), and the rotating block (5) and the washing box (4) are set at the lower rear of the connecting box (201).

2. The waste gas treatment device for liquid chromatography-tandem mass spectrometry according to claim 1, characterized in that: The front four sides of the air guide pipe (203) are fixedly connected to the box wall of the connecting box (201), the rear of the air guide pipe (203) is fixedly connected to the front end of the pipe (204), and the pipe (204) is connected to the inner cavity of the air guide pipe (203).

3. The waste gas treatment device for liquid chromatography-tandem mass spectrometry according to claim 1, characterized in that: The four sides of the grating plate (206) are fixedly connected to the inner wall of the rear end of the connecting box (201), and the rear ends of the two fans (6) are symmetrically fixed on the front side wall of the air outlet (205).

4. The waste gas treatment device for liquid chromatography-tandem mass spectrometry according to claim 1, characterized in that: The washing tank (4) includes a tank body (401), an air inlet pipe (402), an air outlet pipe (403), a slider (404), and a slot (405). The slider (404) is fixed on the front of the tank body (401). The second slide groove (208) is opened on the rear lower wall of the connecting tank (201), and the second slide groove (208) is slidably connected to the slider (404).

5. The waste gas treatment device for liquid chromatography-tandem mass spectrometry according to claim 4, characterized in that: The slot (405) is opened at the bottom of the box (401) and the slider (404). The rotating block (5) is rotatably connected to the rear bottom of the connecting box (201), and the rotating block (5) is fitted into the slot (405). The upper end of the air inlet pipe (402) is fixedly connected to the top of the connecting box (201). The upper end of the air inlet pipe (402) is fitted with a second rubber ring (8). The lower end of the pipe (204) is fitted into the box (401) and the air inlet pipe (402). The upper part of the second rubber ring (8) is attached to the lower end of the pipe (204).

6. The waste gas treatment device for liquid chromatography-tandem mass spectrometry according to claim 4, characterized in that: The vent pipe (403) is located on the top of the box body (401). A first rubber ring (7) is provided on the vent pipe (403), and the first rubber ring (7) is fitted and connected to the opening of the vent pipe (403). The upper end of the vent pipe (403) is fitted and connected to the groove (207), and the upper surface of the first rubber ring (7) is fitted and connected to the groove (207).

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