Exhaust anti-corrosion device for laboratory waste gas

Abstract

The utility model provides a laboratory waste gas ventilation anti-corrosion device, which relates to the technical field of laboratory test analysis and comprises a ventilation pipe, the outer surface of the ventilation pipe is fixedly communicated with a gas inlet pipe and a gas outlet pipe, the gas inlet pipe is communicated with external experimental equipment, the gas outlet pipe is communicated with an external gas collecting device, and the gas collecting device is communicated with a gas outlet pipe. An anti-corrosion part is installed in the exhaust pipe and comprises a rotating rod, and the rotating rod is rotationally connected with the inner wall of the exhaust pipe. According to the laboratory waste gas ventilation anti-corrosion device, the anti-corrosion part is arranged and matched with the water inlet pipe to spray out cleaning liquid, so that the anti-corrosion part can clean the inner wall of the exhaust pipe, waste liquid obtained after cleaning is discharged through the drainage pipe, and then acid-base waste attached to the inner wall of the exhaust pipe is cleaned up; waste is prevented from corroding the inner wall of the exhaust pipe, and the problem that in the prior art, a common waste gas exhaust device is short of anti-corrosion measures, so that corrosion is caused after long-time use is solved.

Description

Technical Field

[0001] The utility model relates to an anti-corrosion device, in particular to a laboratory waste gas exhaust anti-corrosion device, belonging to the technical field of laboratory testing and analysis. Background Art

[0002] Laboratory test and analysis refers to chemical and biological experimental analysis in the laboratory. Sometimes a large amount of acidic or alkaline toxic and harmful waste gas is generated during the laboratory test and analysis. Direct discharge of the waste gas into the air will pollute the air. Therefore, it is necessary to use a waste gas exhaust device to collect the waste gas for easy treatment.

[0003] Common exhaust gas exhaust devices will first collect the exhaust gas into the exhaust pipe during exhaust. Since the gas generated during laboratory experiments may be mixed with aerogels or solid particles, the acidic and alkaline aerogels and solid particles adhere to the inner wall of the exhaust pipe. After a long time, they will corrode the inner wall of the exhaust pipe and further damage the exhaust pipe. Therefore, an exhaust anti-corrosion device needs to be installed to solve the above problem. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] The purpose of the utility model is to provide a laboratory waste gas exhaust anti-corrosion device in order to solve the above-mentioned problem, so as to solve the problem that the common waste gas exhaust devices in the prior art lack anti-corrosion measures, resulting in corrosion after long-term use.

[0006] (II) Technical solution

[0007] The utility model is implemented through the following technical scheme: a laboratory waste gas exhaust anti-corrosion device, comprising an exhaust pipe, the outer surface of the exhaust pipe is fixedly connected with an air inlet pipe and an air outlet pipe, the air inlet pipe is connected with external experimental equipment, the air outlet pipe is connected with an external gas collection device, an anti-corrosion component is installed inside the exhaust pipe, the anti-corrosion component comprises a rotating rod, the rotating rod is rotatably connected to the inner wall of the exhaust pipe, the outer surface of the rotating rod is fixedly connected with two gears, a gear ring is placed on the outer side of each gear, and each gear ring is meshed with gears close to it;

[0008] The outer surface of the rotating rod is provided with a bidirectional thread groove, and the outer surface of the rotating rod is threadedly connected to two threaded sleeves, and the outer surface of each threaded sleeve is fixedly connected to a plurality of connecting rods, and the outer surface of each gear ring is fixedly connected to an auxiliary ring, and the outer surface of each auxiliary ring is provided with a groove, and a sliding block is slidably connected in each groove, and the other end of each connecting rod is fixedly connected to the sliding block close to it, and the outer surface of each gear ring is fixedly connected to a plurality of connecting plates, and the other end of each connecting plate is fixedly connected to a scraper, and each scraper contacts the inner wall of the exhaust pipe.

[0009] Preferably, a filter plate is fixedly connected to the inner wall of the exhaust pipe, the rotating rod penetrates the filter plate, and a plurality of cleaning plates are fixedly connected to the outer surface of the rotating rod, and the cleaning plates are in contact with the filter plates. The filter plates are arranged to filter the exhaust gas entering the exhaust pipe, so that large-volume particles contained in the exhaust gas can be blocked under the filter plate. At the same time, the cleaning plates can clean the bottom surface of the filter plate to prevent large-volume particles from clogging the filter plate.

[0010] Preferably, a plurality of fixing rods are placed above each of the threaded sleeves, and each of the fixing rods penetrates the threaded sleeves close to it. The bottom end of the fixing rod above the filter plate is fixedly connected to the filter plate, and the bottom end of the fixing rod below is fixedly connected to the exhaust pipe, which is beneficial to the stability of the threaded sleeve, so that the threaded sleeve does not rotate with the rotation of the rotating rod, and the movement trajectory of the threaded sleeve is maintained in a stable up and down movement.

[0011] Preferably, the height of the fixing rod is greater than the height of the bidirectional thread groove, and the bottom end of the bidirectional thread groove located above is higher than the filter plate, which is beneficial to the stability of the threaded sleeve, so that the lifting trajectory of the threaded sleeve is always maintained within the height range of the fixing rod, thereby maintaining the overall stability.

[0012] Preferably, a driving motor is placed on the outer surface of the exhaust pipe, and the output end of the driving motor is fixedly connected to the rotating rod, which is beneficial to the stability of the driving motor. The output end of the driving motor can drive the rotating rod to rotate stably.

[0013] Preferably, the outer surface of the exhaust pipe is fixedly connected with a water inlet pipe and a drain pipe, and the water inlet pipe is located above the drain pipe, which is beneficial to the stability of the water inlet pipe and the drain pipe, thereby maintaining the overall stability.

[0014] Preferably, the height of the gear is greater than the height of the bidirectional thread groove, which is beneficial to the stability of the gear, thereby allowing the gear ring to remain stable during the lifting process, thereby maintaining overall stability.

[0015] The utility model provides a laboratory waste gas exhaust anti-corrosion device, which has the following beneficial effects:

[0016] 1. The laboratory waste gas exhaust anti-corrosion device is equipped with anti-corrosion components and cooperates with the water inlet pipe to spray cleaning liquid, so that the anti-corrosion components can clean the inner wall of the exhaust pipe. The waste liquid after cleaning is discharged through the drain pipe, thereby cleaning the acidic and alkaline wastes adhered to the inner wall of the exhaust pipe to prevent the wastes from corroding the inner wall of the exhaust pipe, thereby solving the problem that the common waste gas exhaust devices in the prior art lack anti-corrosion measures, which may cause corrosion after long-term use.

[0017] 2. The laboratory exhaust gas exhaust anti-corrosion device can filter the exhaust gas drawn into the exhaust pipe by setting a filter plate, blocking large-volume solid particles under the filter plate. At the same time, the bottom surface of the filter plate can be cleaned by the cleaning plate to prevent large-volume particles from clogging the filter plate. Through zoning treatment, particles are prevented from mixing with water vapor, aerogel, etc. to form large-volume aggregates that affect the overall cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a front view of the exhaust pipe of the utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the exhaust pipe of the utility model;

[0020] Figure 3 It is a detailed structural drawing of the anti-corrosion component of the utility model;

[0021] Figure 4 For the utility model Figure 2 A schematic diagram of the enlarged structure in the middle.

[0022] Description of Reference Numerals

[0023] 1. Exhaust pipe; 2. Air inlet pipe; 3. Air outlet pipe; 4. Anti-corrosion parts;

[0024] 401, rotating rod; 402, gear; 403, gear ring; 404, threaded sleeve; 405, connecting rod; 406, auxiliary ring; 407, connecting plate; 408, scraper;

[0025] 5. Filter plate; 6. Cleaning plate; 7. Fixing rod; 8. Driving motor; 9. Water inlet pipe; 10. Drain pipe. DETAILED DESCRIPTION

[0026] The utility model embodiment provides a laboratory waste gas exhaust anti-corrosion device.

[0027] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4, including an exhaust pipe 1, the outer surface of the exhaust pipe 1 is fixedly connected with an air inlet pipe 2 and an air outlet pipe 3, the air inlet pipe 2 is connected with external experimental equipment, the air outlet pipe 3 is connected with an external gas collection device, an anti-corrosion component 4 is installed inside the exhaust pipe 1, the anti-corrosion component 4 includes a rotating rod 401, the rotating rod 401 is rotatably connected to the inner wall of the exhaust pipe 1, and the outer surface of the rotating rod 401 is fixedly connected with two gears 402, and a gear ring 403 is placed on the outer side of each gear 402, and each gear ring 403 is meshed with the gear 402 close to it;

[0028] A bidirectional thread groove is provided on the outer surface of the rotating rod 401, and two threaded sleeves 404 are threadedly connected to the outer surface of the rotating rod 401. A plurality of connecting rods 405 are fixedly connected to the outer surface of each threaded sleeve 404. An auxiliary ring 406 is fixedly connected to the outer surface of each gear ring 403. A groove is provided on the outer surface of each auxiliary ring 406. A sliding block is slidably connected in each groove. The other end of each connecting rod 405 is fixedly connected to the sliding block close to it. A plurality of connecting plates 407 are fixedly connected to the outer surface of each gear ring 403. A scraper 408 is fixedly connected to the other end of each connecting plate 407. Each scraper 408 is in contact with the inner wall of the exhaust pipe 1.

[0029] Please refer to Figure 2 , Figure 3 and Figure 4 A filter plate 5 is fixedly connected to the inner wall of the exhaust pipe 1, and a rotating rod 401 penetrates the filter plate 5. A plurality of cleaning plates 6 are fixedly connected to the outer surface of the rotating rod 401, and the cleaning plates 6 are in contact with the filter plate 5. The filter plate 5 is provided to filter the exhaust gas entering the exhaust pipe 1, so that large-volume particles contained in the exhaust gas can be blocked under the filter plate 5. At the same time, the cleaning plates 6 can clean the bottom surface of the filter plate 5 to prevent large-volume particles from clogging the filter plate 5.

[0030] Please refer to Figure 2 , Figure 3 and Figure 4 A plurality of fixing rods 7 are placed above each threaded sleeve 404, and each fixing rod 7 penetrates the threaded sleeve 404 close to it. The bottom end of the fixing rod 7 located above the filter plate 5 is fixedly connected to the filter plate 5, and the bottom end of the fixing rod 7 located below is fixedly connected to the exhaust pipe 1, which is beneficial to the stability of the threaded sleeve 404, so that the threaded sleeve 404 does not rotate with the rotation of the rotating rod 401, and the movement trajectory of the threaded sleeve 404 is maintained in a stable up and down movement. The height of the fixing rod 7 is greater than the height of the bidirectional thread groove, and the bottom end of the bidirectional thread groove located above is higher than the filter plate 5, which is beneficial to the stability of the threaded sleeve 404, so that the lifting trajectory of the threaded sleeve 404 is always maintained within the height range of the fixing rod 7, thereby maintaining the overall stability.

[0031] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 A driving motor 8 is placed on the outer surface of the exhaust pipe 1, and the output end of the driving motor 8 is fixedly connected to the rotating rod 401, which is beneficial to the stability of the driving motor 8. The rotating rod 401 can be driven to rotate stably through the output end of the driving motor 8. The outer surface of the exhaust pipe 1 is fixedly connected with an inlet pipe 9 and a drain pipe 10. The inlet pipe 9 is located above the drain pipe 10, which is beneficial to the stability of the inlet pipe 9 and the drain pipe 10, thereby maintaining the overall stability. The height of the gear 402 is greater than the height of the bidirectional thread groove, which is beneficial to the stability of the gear 402, thereby allowing the gear ring 403 to maintain stability during the lifting process, thereby maintaining the overall stability.

[0032] When the utility model is in use: first, the external cleaning liquid supply system connected to the water inlet pipe 9 is opened, and the external cleaning liquid is sprayed into the interior of the exhaust pipe 1 through the water inlet pipe 9, and then the drive motor 8 is started, and the output end of the drive motor 8 drives the rotating rod 401 to rotate, and the rotation of the rotating rod 401 drives the gear 402 to rotate, and the rotation of the gear 402 drives the gear ring 403 to rotate, and the rotating connecting plate 407 of the gear ring 403 rotates, and the rotation of the connecting plate 407 drives the scraper 408 to rotate, and the scraper 408 scrapes and cleans the inner wall of the exhaust pipe 1.

[0033] At the same time, the rotation of the rotating rod 401 drives the threaded sleeve 404 to rise and fall, the rising and falling of the threaded sleeve 404 drives the connecting rod 405 to rise and fall, the rising and falling of the connecting rod 405 drives the auxiliary ring 406 to rise and fall, and the rising and falling of the auxiliary ring 406 drives the gear ring 403 to rise and fall, so that the gear ring 403 can be stably lifted and lowered during the rotation process, so that the scraper 408 can perform reciprocating rotation scraping cleaning, so that the cleaning can be done more thoroughly.

[0034] At the same time, the filter plate 5 can be set to filter the exhaust gas drawn into the exhaust pipe 1, and large-volume solid particles can be blocked under the filter plate 5. At the same time, the cleaning plate 6 can clean the bottom surface of the filter plate 5 to prevent large-volume particles from clogging the filter plate 5. The zoning treatment prevents the particles from mixing with water vapor, aerogel, etc. to form large-volume aggregates that affect the overall cleaning effect.

[0035] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A laboratory waste gas exhaust anti-corrosion device, comprising an exhaust pipe (1), characterized in that: The outer surface of the exhaust pipe (1) is fixedly connected with an air inlet pipe (2) and an air outlet pipe (3), the air inlet pipe (2) is connected with external experimental equipment, and the air outlet pipe (3) is connected with an external gas collection device. An anti-corrosion component (4) is installed inside the exhaust pipe (1), and the anti-corrosion component (4) includes a rotating rod (401), the rotating rod (401) is rotatably connected to the inner wall of the exhaust pipe (1), and the outer surface of the rotating rod (401) is fixedly connected with two gears (402), and a toothed ring (403) is placed on the outer side of each gear (402), and each toothed ring (403) is meshed with a gear (402) that is close to it; The outer surface of the rotating rod (401) is provided with a bidirectional thread groove, and the outer surface of the rotating rod (401) is threadedly connected to two threaded sleeves (404), and the outer surface of each threaded sleeve (404) is fixedly connected to a plurality of connecting rods (405), and the outer surface of each gear ring (403) is fixedly connected to an auxiliary ring (406), and the outer surface of each auxiliary ring (406) is provided with a groove, and a sliding block is slidably connected in each groove, and the other end of each connecting rod (405) is fixedly connected to a sliding block adjacent to it, and the outer surface of each gear ring (403) is fixedly connected to a plurality of connecting plates (407), and the other end of each connecting plate (407) is fixedly connected to a scraper (408), and each scraper (408) contacts the inner wall of the exhaust pipe (1).

2. A laboratory waste gas exhaust anti-corrosion device according to claim 1, characterized in that: The inner wall of the exhaust pipe (1) is fixedly connected to a filter plate (5), the rotating rod (401) passes through the filter plate (5), and the outer surface of the rotating rod (401) is fixedly connected to a plurality of cleaning plates (6), and the cleaning plates (6) are in contact with the filter plate (5).

3. A laboratory waste gas exhaust anti-corrosion device according to claim 1, characterized in that: A plurality of fixing rods (7) are placed above each of the threaded sleeves (404), and each of the fixing rods (7) penetrates a threaded sleeve (404) adjacent to it. The bottom end of the fixing rod (7) located above the filter plate (5) is fixedly connected to the filter plate (5), and the bottom end of the fixing rod (7) located below is fixedly connected to the exhaust pipe (1).

4. A laboratory waste gas exhaust anti-corrosion device according to claim 3, characterized in that: The height of the fixing rod (7) is greater than the height of the bidirectional thread groove, and the bottom end of the bidirectional thread groove located at the top is higher than the filter plate (5).

5. The laboratory waste gas exhaust anti-corrosion device according to claim 1, characterized in that: A driving motor (8) is placed on the outer surface of the exhaust pipe (1), and the output end of the driving motor (8) is fixedly connected to the rotating rod (401).

6. A laboratory waste gas exhaust anti-corrosion device according to claim 1, characterized in that: The outer surface of the exhaust pipe (1) is fixedly connected to a water inlet pipe (9) and a drain pipe (10), and the water inlet pipe (9) is located above the drain pipe (10).

7. The laboratory waste gas exhaust anti-corrosion device according to claim 1, characterized in that: The height of the gear (402) is greater than the height of the bidirectional thread groove.

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