Assay experiment waste gas collecting and purifying device

Abstract

The utility model relates to the technical field of laboratories, in particular to a laboratory experiment waste gas collecting and purifying device which comprises a liquid storage tank, a primary purifying tank is fixedly connected to the center of the top of the liquid storage tank, a liquid suction pump is fixedly installed on the top of the primary purifying tank, and the input end of the liquid suction pump is communicated with a liquid suction pipe. The liquid suction pump is matched with the liquid suction pipe to suck washing liquid in the liquid storage tank, the washing liquid is conveyed to the liquid outlet pipe through the liquid suction pipe, the washing liquid is conveyed to the connecting pipe through the liquid outlet pipe, the connecting pipe is connected with the liquid suction pump through the liquid suction pipe, the liquid suction pump is connected with the liquid suction pump, and the liquid suction pump is connected with the liquid suction pump through the liquid suction pipe. The washing liquid is sprayed into the inner cavity of the first-stage purification box through the liquid outlet cover, so that the washing liquid is in full contact with the waste gas passing through the first-stage purification box, and the washing liquid and pollutants in the waste gas are subjected to dissolution, adsorption, oxidation and other reactions by utilizing the characteristics of the washing liquid, so that the purpose of purifying the waste gas is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of laboratories, in particular to a device for collecting and purifying waste gas from a laboratory test. Background Art

[0002] The laboratory is a place where experimenters conduct experimental analysis and scientific research activities. Various chemical reagents and medicines are used in the process of experimental analysis. These reagents and medicines often volatilize toxic and harmful gases. Various chemical reaction liquids in the experiment will produce waste gas. The sources of waste gas mainly include volatiles of reagents and samples, intermediates in the reaction process, etc. Its main components are organic waste gas (methane, ether, aldehydes, etc.) and inorganic waste gas (hydrogen chloride, chlorine and ammonia, etc.). When treating waste gas, collection and purification equipment is required.

[0003] When the existing collection and purification device is working, it usually collects and transports the exhaust gas through the exhaust mechanism and is used in conjunction with activated carbon. When the exhaust gas passes through the activated carbon, the harmful substances in the exhaust gas are adsorbed by the characteristics of the activated carbon to achieve the purpose of collecting and purifying the exhaust gas. However, the harmful substances in the exhaust gas cannot be completely filtered out by activated carbon alone, which makes it very easy for a small amount of harmful substances to remain in the exhaust gas. When the exhaust gas containing harmful substances is discharged into the external air, it will reduce the air quality and cause great pollution to the environment. Therefore, we provide a laboratory exhaust gas collection and purification device.

[0004] In summary, the utility model solves the existing problems by designing a laboratory waste gas collection and purification device. Utility Model Content

[0005] The purpose of the utility model is to provide a device for collecting and purifying waste gas from a laboratory test so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A laboratory waste gas collection and purification device comprises a liquid storage box, a primary purification box is fixedly connected to the center of the top of the liquid storage box, a liquid suction pump is fixedly installed on the top of the primary purification box, the input end of the liquid suction pump is connected to a liquid suction pipe, one end of the liquid suction pipe is connected to the bottom of the back of the liquid storage box, the output end of the liquid suction pump is connected to a liquid outlet pipe, the other end of the liquid outlet pipe passes through the inner cavity of the primary purification box and is connected to a connecting pipe, a group of liquid outlet covers are arranged at the bottom of the connecting pipe, wherein the number of liquid outlet covers is five, and the front surface of the liquid storage box and the primary purification box are connected through a liquid guide pipe.

[0008] By adopting the above scheme, the washing liquid inside the liquid storage box is sucked by the suction pump in cooperation with the suction tube, the washing liquid is transported to the liquid outlet pipe through the suction tube, the washing liquid is transported to the connecting pipe through the liquid outlet pipe, and the washing liquid is sprayed into the inner cavity of the primary purification box through the liquid outlet cover, so that the washing liquid is fully in contact with the exhaust gas passing through the primary purification box, and the characteristics of the washing liquid are utilized to produce dissolution, adsorption and oxidation reactions with the pollutants in the exhaust gas, thereby achieving the purpose of purifying the exhaust gas. At the same time, the washing liquid after the reaction can be introduced into the inner cavity of the liquid storage box through the liquid guide tube, and is transported to the inner cavity of the primary purification box again by the suction pump in cooperation with the suction tube, the liquid outlet pipe and the connecting pipe, and this is repeated to achieve the purpose of circulating filtration, so that the purification effect is greatly improved.

[0009] As a preferred embodiment of a laboratory waste gas collection and purification device, the left side of the first-level purification box is connected to an air intake pipe, the inner cavity of the air intake pipe is fixedly connected to a vertical plate, a motor is fixedly installed on one side of the vertical plate, and the output end of the motor is fixedly connected to a fan blade.

[0010] By adopting the above scheme, the fan blades can be driven to rotate through the setting of the motor, and airflow is generated through the fan blades, which accelerates the flow rate of the gas and pushes the airflow to move in one direction, so that the exhaust gas is collected.

[0011] As a preferred embodiment of a laboratory waste gas collection and purification device, the surface of the air inlet pipe is connected to a group of air inlet hoods, and the number of the air inlet hoods is three.

[0012] By adopting the above scheme, through the provision of multiple air inlet hoods, the exhaust gas can be collected from multiple directions, which greatly improves the collection efficiency.

[0013] As a preferred embodiment of a laboratory waste gas collection and purification device, the right side of the top of the first-level purification box is connected to an air pipe, one end of the air pipe is connected to a second-level purification box, an activated carbon filter is fixedly connected to the bottom of the inner cavity of the second-level purification box, a leak plate is fixedly connected to the top of the inner cavity of the second-level purification box, an activated carbon adsorption block is placed on the top of the leak plate, and the right side of the top of the second-level purification box is connected to an air outlet pipe.

[0014] By adopting the above scheme, through the setting of activated carbon filter net and activated carbon adsorption block, after the exhaust gas is purified once, the porous structure of activated carbon is used to adsorb harmful substances in the exhaust gas again, thereby achieving the purpose of multi-stage filtration.

[0015] As a preferred embodiment of a laboratory waste gas collection and purification device, a liquid filling port is opened on the right side of the top back of the liquid storage box, and slides are fixedly connected to both sides of the inner cavity of the liquid storage box, and a fine filter mesh plate is slidably connected to the inner wall of the slide.

[0016] By adopting the above scheme, the impurities in the washing liquid after the exhaust gas is purified are filtered through the provision of a fine filter screen plate, thereby improving the purity of the washing liquid and achieving the purpose of recycling.

[0017] As a preferred embodiment of a laboratory waste gas collection and purification device, both sides of the bottom of the suction pump are fixedly connected to limit frames, and the bottom of the limit frame is fixedly connected to the top of the first-level purification box.

[0018] By adopting the above scheme and setting the limit frame, the vibration of the suction pump during operation can be reduced, thereby achieving the purpose of vibration reduction and noise reduction.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] 1. In the utility model, the washing liquid in the liquid storage box is sucked by the liquid suction pump in cooperation with the liquid suction pipe, the washing liquid is transported to the liquid outlet pipe through the liquid suction pipe, the washing liquid is transported to the connecting pipe through the liquid outlet pipe, and the washing liquid is sprayed into the inner cavity of the primary purification box through the liquid outlet cover, so that the washing liquid is fully in contact with the exhaust gas passing through the primary purification box, and the washing liquid uses the characteristics of the washing liquid to produce dissolution, adsorption and oxidation reactions with the pollutants in the exhaust gas, thereby achieving the purpose of purifying the exhaust gas.

[0021] 2. In the utility model, the washing liquid of the purified exhaust gas is introduced into the inner cavity of the liquid storage box through the liquid guide tube, and is again transported to the inner cavity of the primary purification box through the liquid suction pump in cooperation with the liquid suction tube, the liquid outlet tube and the connecting tube. This is repeated to achieve the purpose of circulating filtration, which greatly improves the purification effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the utility model;

[0023] Figure 2 This is a cross-sectional view of the primary purification box and the air intake pipe of the utility model;

[0024] Figure 3 It is a cross-sectional view of the secondary purification box of the utility model;

[0025] Figure 4 It is a cross-sectional view of the liquid storage box of the present utility model.

[0026] In the figure: 1. liquid storage box; 2. primary purification box; 3. liquid suction pump; 4. liquid suction pipe; 5. liquid outlet pipe; 6. connecting pipe; 7. liquid outlet cover; 8. air inlet pipe; 9. vertical plate; 10. motor; 11. fan blade; 12. air supply pipe; 13. activated carbon filter; 14. leakage plate; 15. activated carbon adsorption block; 16. secondary purification box; 17. slide; 18. fine filter plate. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0028] For examples, see Figure 1-4 , the utility model provides a technical solution:

[0029] See also Figure 1-4 A laboratory waste gas collection and purification device comprises a liquid storage tank 1, a primary purification tank 2 is fixedly connected to the center of the top of the liquid storage tank 1, Figure 3 As shown, the left side of the primary purification box 2 is connected with an air inlet pipe 8, the inner cavity of the air inlet pipe 8 is fixedly connected with a vertical plate 9, one side of the vertical plate 9 is fixedly installed with a motor 10, and the output end of the motor 10 is fixedly connected with a fan blade 11. Through the setting of the motor 10, the fan blade 11 can be driven to rotate, and an air flow is generated by the fan blade 11 to accelerate the flow rate of the gas and push the air flow to move in one direction, so that the exhaust gas is collected. A suction pump 3 is fixedly installed on the top of the primary purification box 2, and the input end of the suction pump 3 is connected with a suction pipe 4, one end of the suction pipe 4 is connected with the bottom of the back of the liquid storage box 1, and the output end of the suction pump 3 is connected with a liquid outlet pipe 5, one end of the liquid outlet pipe 5 is connected with a connecting pipe 6, and a group of liquid outlet covers 7 are arranged at the bottom of the connecting pipe 6, and the number of liquid outlet covers 7 is five. The front surface of the liquid storage box 1 and the primary purification box 2 are connected through a liquid guide pipe, as shown in FIG. Figure 4As shown, the right side of the top of the primary purification box 2 is connected with an air supply pipe 12, one end of the air supply pipe 12 is connected with a secondary purification box 16, the bottom of the inner cavity of the secondary purification box 16 is fixedly connected with an activated carbon filter 13, the top of the inner cavity of the secondary purification box 16 is fixedly connected with a leak plate 14, an activated carbon adsorption block 15 is placed on the top of the leak plate 14, and the right side of the top of the secondary purification box 16 is connected with an air outlet pipe. Through the arrangement of the activated carbon filter 13 and the activated carbon adsorption block 15, after the exhaust gas is purified once, the porous structure of the activated carbon is used to adsorb harmful substances in the exhaust gas again, so as to achieve the purpose of multi-stage filtration, and the liquid is sucked into the liquid storage box 1 through the liquid suction pump 3 with the cooperation of the liquid suction pipe 4. The washing liquid is transported to the liquid outlet pipe 5 through the liquid suction pipe 4, and the washing liquid is transported to the connecting pipe 6 through the liquid outlet pipe 5, and the washing liquid is sprayed to the inner cavity of the primary purification box 2 through the liquid outlet cover 7, so that the washing liquid is fully in contact with the exhaust gas passing through the primary purification box 2. By utilizing the characteristics of the washing liquid, the pollutants in the exhaust gas are dissolved, adsorbed and oxidized, thereby achieving the purpose of purifying the exhaust gas. At the same time, the washing liquid after the reaction can be introduced into the inner cavity of the liquid storage box 1 through the liquid guide tube, and is transported to the inner cavity of the primary purification box 2 again through the suction pump 3 in cooperation with the suction pipe 4, the liquid outlet pipe 5 and the connecting pipe 6. This is repeated to achieve the purpose of circulating filtration, so that the purification effect is greatly improved.

[0030] See Figure 1 As shown, the surface of the air intake pipe 8 is connected to a group of air intake covers, and the number of air intake covers is three. By setting multiple air intake covers, the exhaust gas can be collected from multiple directions, which greatly improves the collection efficiency. Figure 2 As shown, a liquid injection port is provided on the right side of the top of the back of the liquid storage box 1, and slideways 17 are fixedly connected to both sides of the inner cavity of the liquid storage box 1. A fine filter plate 18 is slidably connected to the inner wall of the slideway 17. Through the setting of the fine filter plate 18, impurities in the washing liquid after purifying the exhaust gas are filtered, thereby improving the purity of the washing liquid and achieving the purpose of recycling. Figure 1 As shown, both sides of the bottom of the suction pump 3 are fixedly connected to the limiting frames, and the bottom of the limiting frames is fixedly connected to the top of the primary purification box 2. Through the setting of the limiting frames, the vibration of the suction pump 3 during operation is reduced, achieving the purpose of shock absorption and noise reduction.

[0031] When in use, first start the motor 10 and the liquid suction pump 3, and the motor 10 drives the fan blades 11 to rotate, and the fan blades 11 generate airflow, accelerate the flow rate of the gas, so that the exhaust gas is transported to the inner cavity of the intake pipe 8 through the air inlet hood on the surface of the intake pipe 8, and push the airflow to move to the inner cavity of the primary purification box 2, so as to achieve the purpose of exhaust gas collection. Secondly, the liquid suction pump 3 sucks the washing liquid inside the liquid storage box 1 with the cooperation of the liquid suction pipe 4, and transports the washing liquid to the liquid outlet pipe 5 through the liquid suction pipe 4, and transports the washing liquid to the connecting pipe 6 through the liquid outlet pipe 5, and sprays the washing liquid into the inner cavity of the primary purification box 2 through the liquid outlet hood 7, so that the washing liquid is fully in contact with the exhaust gas passing through the primary purification box 2, and the characteristics of the washing liquid are utilized. The pollutants in the exhaust gas undergo reactions such as dissolution, adsorption and oxidation, thereby achieving the purpose of purifying the exhaust gas. At the same time, the washing liquid after the reaction can be introduced into the inner cavity of the liquid storage box 1 through the liquid guide tube, and is again transported to the inner cavity of the primary purification box 2 through the liquid suction pump 3 in cooperation with the liquid suction tube 4, the liquid outlet pipe 5 and the connecting pipe 6. This process is repeated to achieve the purpose of circulating filtration, which greatly improves the purification effect. The exhaust gas after preliminary purification is transported to the inner cavity of the secondary purification box 16 through the gas transmission pipe 12. When the exhaust gas passes through the activated carbon filter 13 and the activated carbon adsorption block 15, the porous structure of the activated carbon is used to adsorb the harmful substances in the exhaust gas again, thereby achieving the purpose of multi-stage filtration. Finally, the purified gas can be output through the outlet pipe.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for collecting and purifying waste gas from a laboratory test, comprising a liquid storage tank (1), characterized in that: A primary purification box (2) is fixedly connected to the center of the top of the liquid storage box (1), and a liquid suction pump (3) is fixedly installed on the top of the primary purification box (2). The input end of the liquid suction pump (3) is connected to a liquid suction pipe (4), one end of the liquid suction pipe (4) is connected to the bottom of the back of the liquid storage box (1), and the output end of the liquid suction pump (3) is connected to a liquid outlet pipe (5). The other end of the liquid outlet pipe (5) passes through the inner cavity of the primary purification box (2) and is connected to a connecting pipe (6). A group of liquid outlet covers (7) are arranged at the bottom of the connecting pipe (6), wherein the number of liquid outlet covers (7) is five. The front surfaces of the liquid storage box (1) and the primary purification box (2) are connected via a liquid guide pipe.

2. The device for collecting and purifying waste gas from a laboratory test according to claim 1, characterized in that: The left side of the primary purification box (2) is connected to an air intake pipe (8), the inner cavity of the air intake pipe (8) is fixedly connected to a vertical plate (9), a motor (10) is fixedly mounted on one side of the vertical plate (9), and a fan blade (11) is fixedly connected to the output end of the motor (10).

3. The device for collecting and purifying waste gas from a laboratory test according to claim 2, characterized in that: The surface of the air intake pipe (8) is connected to a group of air intake covers, and the number of the air intake covers is three.

4. The device for collecting and purifying waste gas from a laboratory test according to claim 2, characterized in that: The right side of the top of the primary purification box (2) is connected to an air supply pipe (12), the other end of the air supply pipe (12) is connected to a secondary purification box (16), the bottom of the inner cavity of the secondary purification box (16) is fixedly connected to an activated carbon filter screen (13), the top of the inner cavity of the secondary purification box (16) is fixedly connected to a leak plate (14), an activated carbon adsorption block (15) is placed on the top of the leak plate (14), and the right side of the top of the secondary purification box (16) is connected to an air outlet pipe.

5. The device for collecting and purifying waste gas from a laboratory test according to claim 1, characterized in that: A liquid injection port is provided on the right side of the top of the back side of the liquid storage box (1), and slideways (17) are fixedly connected to both sides of the inner cavity of the liquid storage box (1), and a fine filter screen (18) is slidably connected to the inner wall of the slideway (17).

6. The device for collecting and purifying waste gas from a laboratory test according to claim 1, characterized in that: Both sides of the bottom of the liquid suction pump (3) are fixedly connected to limit frames, and the bottom of the limit frames is fixedly connected to the top of the primary purification box (2).

Images