Gas leakage detection device for gas chromatograph

Abstract

The utility model discloses a gas leakage detection device for a gas chromatograph, which comprises a detection box, the inner surface of the detection box is provided with a gas outlet pipe, the outer surface of the gas outlet pipe is fixedly connected with a connecting flange, the detection box is internally provided with a water storage tank, and the inner surface of the detection box is provided with a water inlet pipe. Through the arrangement of the detection box, the water storage tank, the water inlet pipe, the water pump, the drainage pipe, the cavity plate and the nozzle, whether the air leakage of the air outlet pipe occurs can be rapidly detected, the air leakage position of the air outlet pipe can be rapidly determined, and the trouble of manual detection by workers is avoided, so that the working efficiency is improved; through the arrangement of a water falling hole, a first guide rail, a waterproof motor, a first lead screw, a baffle, a guide rod, a second guide rail and other structures, water for detection can be rapidly discharged and reused, the practicability is improved, through the arrangement of a second lead screw, a rotating handle, a brush plate and bristles, the surface of an air outlet pipe can be cleaned, and the practicability is improved. And the service life of the air outlet pipe is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of air leakage detection devices, in particular to an air leakage detection device for a gas chromatograph. Background Technique

[0002] A gas chromatograph is an instrument widely used in the field of chemical analysis. It separates samples in the gas phase and then detects each component through a detector to achieve qualitative and quantitative analysis of the samples. During the use of a gas chromatograph, the airtightness of the outlet pipe is crucial. Any minor leakage may lead to inaccurate analysis results or even damage the instrument. Therefore, effective air leakage detection of the gas chromatograph is an important link to ensure the accuracy of analysis results and the safe operation of the instrument.

[0003] However, traditional air leakage detection usually requires staff to prepare soapy water and apply it to the entire pipeline, and then observe whether there are bubbles to know whether there is air leakage. This detection method is relatively cumbersome and affects work efficiency. Content of the Utility Model

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and provide an air leakage detection device for a gas chromatograph. Through the settings of a detection box, a water storage tank, a water inlet pipe, a water pump, a drain pipe, a cavity plate, and a spray head, it can quickly detect whether the outlet pipe leaks air and can also quickly determine the air leakage position of the outlet pipe, avoiding the trouble of manual detection by staff, thereby improving work efficiency. And through the settings of structures such as a water dropping hole, a first guide rail, a waterproof motor, a first lead screw, a baffle, a guide rod, and a second guide rail, the water used for detection can be quickly discharged and reused, improving practicality. And through the settings of a second lead screw, a rotating handle, a brush plate, and bristles, the surface of the outlet pipe can be cleaned, thereby extending the service life of the outlet pipe.

[0005] The utility model also provides an air leakage detection device for a gas chromatograph with the above features, including:

[0006] A detection box, the inner surface of the detection box is provided with an outlet pipe, the outer surface of the outlet pipe is fixedly connected with a connecting flange, the inside of the detection box is provided with a water storage tank, the inner surface of the detection box is provided with a water inlet pipe, one end of the water inlet pipe away from the detection box is fixedly connected with a water pump, the output end of the water pump is fixedly connected with a drain pipe, one end of the drain pipe away from the water pump is fixedly connected with a cavity plate, and the rear surface of the cavity plate is provided with a spray head.

[0007] The inner surface of the detection box is fixedly connected with a partition board. The outer surface of the partition board is provided with water leakage holes. The upper surface of the partition board is fixedly connected with a first guide rail. The left end of the first guide rail is fixedly connected with a waterproof motor. The output end of the waterproof motor is fixedly connected with a first lead screw. The outer surface of the first lead screw is threadedly connected with a first slider. The rear surface of the first slider is fixedly connected with a baffle. The rear surface of the baffle is fixedly connected with a second slider. The inner surface of the second slider is slidably connected with a guide rod. The two ends of the guide rod are fixedly connected with a second guide rail. The inner surface of the detection box is provided with a limit groove. The inner surface of the limit groove is provided with a second lead screw. The outer surface of the second lead screw is fixedly connected with a turning handle. The outer surface of the second lead screw is threadedly connected with a brush plate. The inner surface of the brush plate is fixedly connected with bristles.

[0008] According to the leak detection device for a gas chromatograph described above, the outer surface of the detection box is fixedly connected with fixing buckles. The number of the fixing buckles is four and they are distributed in a rectangular array, which is convenient for installing the device on the equipment.

[0009] According to the leak detection device for a gas chromatograph described above, water is provided inside the water storage tank for detecting whether there is a leakage in the gas outlet pipe. The outer surface of the drain pipe is fixedly connected with the detection box.

[0010] According to the leak detection device for a gas chromatograph described above, the upper surface of the partition board is in contact with the baffle, and the upper surface of the partition board is fixedly connected with the second guide rail.

[0011] According to the leak detection device for a gas chromatograph described above, the outer surface of the first lead screw is rotatably connected with the first guide rail. The number of the nozzles is multiple and they are linearly distributed from left to right.

[0012] According to the leak detection device for a gas chromatograph described above, the outer surface of the first slider is slidably connected with the first guide rail, and the outer surface of the second slider is slidably connected with the second guide rail.

[0013] According to the leak detection device for a gas chromatograph described above, the inner surface of the limit groove is adapted to the brush plate, and the outer surface of the gas outlet pipe is in contact with the bristles, which is convenient for cleaning the surface of the gas outlet pipe.

[0014] According to the leak detection device for a gas chromatograph described above, the water pump and the waterproof motor are both electrically connected to an external power source.

[0015] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present utility model. Description of the Drawings

[0016] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments;

[0017] Figure 1 It is a schematic diagram of the overall structure of a leak detection device for a gas chromatograph according to the present utility model;

[0018] Figure 2 It is a schematic diagram of the rear side of the overall structure of a leak detection device for a gas chromatograph according to the present utility model;

[0019] Figure 3 It is a schematic diagram of a partial structure of a leak detection device for a gas chromatograph according to the present utility model;

[0020] Figure 4 It is a cross-sectional view of the overall structure of a leak detection device for a gas chromatograph according to the present utility model.

[0021] Legend description:

[0022] 1. Detection box; 2. Outlet pipe; 3. Connecting flange; 4. Water storage tank; 5. Water inlet pipe; 6. Water pump; 7. Drain pipe; 8. Cavity plate; 9. Sprinkler head; 10. Partition board; 11. Water falling hole; 12. First guide rail; 13. Waterproof motor; 14. First lead screw; 15. First slider; 16. Baffle; 17. Second slider; 18. Guide rod; 19. Second guide rail; 20. Limit groove; 21. Second lead screw; 22. Rotating handle; 23. Brush plate; 24. Brush bristles; 25. Fixed buckle. Specific implementation manners

[0023] This part will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The function of the drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but it cannot be construed as a limitation on the protection scope of the present utility model.

[0024] Referring to Figures 1-4 , an embodiment of a leak detection device for a gas chromatograph according to the present utility model includes: a detection box 1, an outlet pipe 2 is provided on the inner surface of the detection box 1, a connecting flange 3 is fixedly connected to the outer surface of the outlet pipe 2, a water storage tank 4 is provided inside the detection box 1, a water inlet pipe 5 is provided on the inner surface of the detection box 1, one end of the water inlet pipe 5 away from the detection box 1 is fixedly connected to a water pump 6, the output end of the water pump 6 is fixedly connected to a drain pipe 7, one end of the drain pipe 7 away from the water pump 6 is fixedly connected to a cavity plate 8, a sprinkler head 9 is provided on the rear surface of the cavity plate 8, a fixed buckle 25 is fixedly connected to the outer surface of the detection box 1, the number of the fixed buckles 25 is four and they are distributed in a rectangular array, water is provided inside the water storage tank 4, the outer surface of the drain pipe 7 is fixedly connected to the detection box 1, the number of the sprinkler heads 9 is multiple and they are linearly distributed left and right, and the water pump 6 is electrically connected to an external power source.

[0025] The inner surface of the detection box 1 is fixedly connected with a partition plate 10. The outer surface of the partition plate 10 is provided with water drainage holes 11. The upper surface of the partition plate 10 is fixedly connected with a first guide rail 12. The left end of the first guide rail 12 is fixedly connected with a waterproof motor 13. The output end of the waterproof motor 13 is fixedly connected with a first lead screw 14. The outer surface of the first lead screw 14 is threadedly connected with a first slider 15. The rear surface of the first slider 15 is fixedly connected with a baffle 16. The rear surface of the baffle 16 is fixedly connected with a second slider 17. The inner surface of the second slider 17 is slidably connected with a guide rod 18. Both ends of the guide rod 18 are fixedly connected with a second guide rail 19. The inner surface of the detection box 1 is provided with a limit groove 20. The inner surface of the limit groove 20 is provided with a second lead screw 21. The outer surface of the second lead screw 21 is fixedly connected with a rotating handle 22. The outer surface of the second lead screw 21 is threadedly connected with a brush plate 23. The inner surface of the brush plate 23 is fixedly connected with bristles 24. The upper surface of the partition plate 10 is in contact with the baffle 16. The upper surface of the partition plate 10 is fixedly connected with the second guide rail 19. The outer surface of the first lead screw 14 is rotatably connected with the first guide rail 12. The outer surface of the first slider 15 is slidably connected with the first guide rail 12. The outer surface of the second slider 17 is slidably connected with the second guide rail 19. The inner surface of the limit groove 20 is adapted to the brush plate 23. The outer surface of the air outlet pipe 2 is in contact with the bristles 24. The waterproof motor 13 is electrically connected to an external power source.

[0026] Working principle: When the gas chromatograph malfunctions, start the water pump 6. After absorbing the water inside the water storage tank 4 through the water inlet pipe 5, it is discharged through the drain pipe 7, the cavity plate 8, and the nozzle 9 until the upper part of the detection box 1 is completely immersed in water and the air outlet pipe 2 is stopped. Then observe whether bubbles appear on the water surface. If bubbles appear, it means that the air outlet pipe 2 is leaking, and the leakage position of the air outlet pipe 2 can be determined by observing the position of the bubbles. On the contrary, if no bubbles appear, it means that there is no leakage condition. After the leakage detection is completed, start the waterproof motor 13 to drive the first lead screw 14 to drive the baffle 16 to slide along the guide rod 18 under the action of the first slider 15 and the second slider 17, so that the water drainage holes 11 are completely exposed. At this time, the water for detection falls back into the water storage tank 4 through the water drainage holes 11 for storage, which is convenient for use in secondary detection and avoids waste. After the water recedes, the rotating handle 22 can be rotated to drive the second lead screw 21 to drive the brush plate 23 to slide integrally along the inside of the limit groove 20. With the cooperation of the bristles 24, the surface of the air outlet pipe 2 can be cleaned, thereby prolonging the service life of the air outlet pipe 2.

[0027] The above has described the embodiments of the present invention in detail with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art in the technical field, various changes can be made without departing from the purpose of the present invention.

Claims

1. A leak detection device for a gas chromatograph, characterized in that, Including: A detection box (1), an air outlet pipe (2) is arranged on the inner surface of the detection box (1), a connecting flange (3) is fixedly connected to the outer surface of the air outlet pipe (2), a water storage tank (4) is arranged inside the detection box (1), a water inlet pipe (5) is arranged on the inner surface of the detection box (1), one end of the water inlet pipe (5) away from the detection box (1) is fixedly connected to a water pump (6), the output end of the water pump (6) is fixedly connected to a drain pipe (7), one end of the drain pipe (7) away from the water pump (6) is fixedly connected to a cavity plate (8), and a spray head (9) is arranged on the rear surface of the cavity plate (8); A partition plate (10) is fixedly connected to the inner surface of the detection box (1), a water falling hole (11) is arranged on the outer surface of the partition plate (10), a first guide rail (12) is fixedly connected to the upper surface of the partition plate (10), a waterproof motor (13) is fixedly connected to the left end of the first guide rail (12), the output end of the waterproof motor (13) is fixedly connected to a first lead screw (14), a first slider (15) is threadedly connected to the outer surface of the first lead screw (14), a baffle plate (16) is fixedly connected to the rear surface of the first slider (15), a second slider (17) is fixedly connected to the rear surface of the baffle plate (16), a guide rod (18) is slidably connected to the inner surface of the second slider (17), both ends of the guide rod (18) are fixedly connected to a second guide rail (19), a limiting groove (20) is arranged on the inner surface of the detection box (1), a second lead screw (21) is arranged on the inner surface of the limiting groove (20), a rotating handle (22) is fixedly connected to the outer surface of the second lead screw (21), a brush plate (23) is threadedly connected to the outer surface of the second lead screw (21), and bristles (24) are fixedly connected to the inner surface of the brush plate (23).

2. The leak detection device for a gas chromatograph according to claim 1, wherein, Four fixing buckles (25) are fixedly connected to the outer surface of the detection box (1), and they are distributed in a rectangular array.

3. The leak detection device for a gas chromatograph according to claim 1, wherein There is water inside the water storage tank (4), and the outer surface of the drain pipe (7) is fixedly connected to the detection box (1).

4. A leak detection device for a gas chromatograph according to claim 1, characterized in that, The upper surface of the partition plate (10) is in contact with the baffle plate (16), and the upper surface of the partition plate (10) is fixedly connected to the second guide rail (19).

5. The leak detection device for a gas chromatograph according to claim 1, wherein The outer surface of the first lead screw (14) is rotatably connected to the first guide rail (12), and the number of the spray heads (9) is multiple and they are linearly distributed from left to right.

6. The leak detection device for a gas chromatograph according to claim 1, characterized in that, The outer surface of the first slider (15) is slidably connected to the first guide rail (12), and the outer surface of the second slider (17) is slidably connected to the second guide rail (19).

7. The leak detection device for a gas chromatograph according to claim 1, characterized in that, The inner surface of the limiting groove (20) is adapted to the brush plate (23), and the outer surface of the air outlet pipe (2) is in contact with the bristles (24).

8. The leak detection device for a gas chromatograph according to claim 1, characterized in that, The water pump (6) and the waterproof motor (13) are both electrically connected to an external power supply.

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