Organic solvent treatment monitoring system

Abstract

The utility model provides an organic solvent treatment monitoring system, which belongs to the technical field of organic solvent treatment, and comprises a first barrel and a second barrel, the first barrel and the second barrel are arranged side by side, a first pipe penetrates through and is fixedly communicated with the interior of the first barrel, the lower surface of the first pipe is fixedly connected with an absorption structure, and the absorption structure is fixedly connected with the lower surface of the first pipe. A second pipe penetrates through and is fixedly communicated between the first barrel and the second barrel, an absorption solution is arranged in the second barrel, the absorption solution is a deep-eutectic solvent, a third pipe penetrates through and is fixedly communicated with the interior of the second barrel, and a monitoring assembly is arranged on the third pipe. The lower end, located in the first barrel, of the second pipe extends to the position 5 cm below the inner top face of the first barrel. According to the utility model, an absorption system prepared from activated carbon, a molecular sieve and adsorption resin and a deep-eutectic solvent absorption system are integrated; and the absorption efficiency of dichloromethane gas generated by volatilization in scientific research and production is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of organic solvent treatment, and particularly relates to an organic solvent treatment monitoring system. Background Art

[0002] Dichloromethane is an organic solvent widely used in scientific research and pharmaceutical process production. It has high volatility and good solubility. However, its volatility also poses environmental and health risks. The emission of dichloromethane into the air not only pollutes the atmospheric environment but also may harm the health of operators. Long-term exposure to a high-concentration dichloromethane environment may cause liver and kidney damage. In addition, dichloromethane has a destructive effect on the ozone layer, exacerbating the global warming problem. Therefore, effectively treating the volatilization of dichloromethane not only helps to protect the environment and reduce the damage to the ozone layer but also is an important measure to ensure the health of workers and comply with environmental protection regulations. By using technical means such as absorbents, the emission of dichloromethane can be effectively reduced to achieve clean production and sustainable development. In reality, there is a lack of an integrated system for the absorption and treatment of dichloromethane in scientific research and production.

[0003] The existing organic solvent treatment monitoring systems also have the following deficiencies:

[0004] 1. Since dichloromethane is an organic solvent with high volatility, it is easy to cause the volatilization of dichloromethane after use, which may damage the environment and personnel. Therefore, dichloromethane needs to be absorbed.

[0005] 2. To ensure that dichloromethane can be fully absorbed and will not escape into the air, it is necessary to monitor the absorption efficiency and the absorption process. Summary of the Utility Model

[0006] The purpose of the utility model is to solve the problems in the prior art that dichloromethane needs to be absorbed and the absorption efficiency and the absorption process need to be monitored, and to propose an organic solvent treatment monitoring system.

[0007] To achieve the above purpose, the utility model adopts the following technical scheme:

[0008] An organic solvent treatment monitoring system, comprising: a first barrel and a second barrel, the first barrel and the second barrel are placed side by side, a first pipe penetrates and is fixedly connected through the first barrel, an absorption structure is fixedly connected to the lower surface of the first pipe, a second pipe penetrates and is fixedly connected through between the first barrel and the second barrel, an absorption solution is provided in the second barrel, the absorption solution is set as a deep eutectic solvent, a third pipe penetrates and is fixedly connected through the second barrel, and a supervision component is arranged on the third pipe;

[0009] Preferably, the lower end of the second pipe located inside the first barrel extends to 5 cm below the inner top surface of the first barrel, the lower end of the second pipe located inside the second barrel extends to 5 cm above the inner bottom surface of the second barrel, and the second pipe extends into the eutectic solvent;

[0010] Preferably, the absorption structure includes an absorption box, the absorption box is fixedly connected to the inner bottom surface of the first barrel, an air outlet is arranged on the side of the absorption box away from the first pipe, and activated carbon, molecular sieve and adsorption resin are fixedly connected in the absorption box in sequence;

[0011] Preferably, the lower end of the third pipe extends to 5 cm below the inner top surface of the second barrel;

[0012] Preferably, the supervision component includes an on-line monitoring box, the end of the third pipe is fixedly communicated with the on-line monitoring box, and the end of the on-line monitoring box is fixedly communicated with a fourth pipe;

[0013] Preferably, the end of the fourth pipe is fixedly communicated with a solenoid valve, the two output ports of the solenoid valve are respectively fixedly communicated with a fifth pipe and a sixth pipe, and the end of the sixth pipe is fixedly communicated with the inside of the first pipe.

[0014] Compared with the prior art, the present utility model has the following advantages:

[0015] 1. An absorption system prepared by integrating activated carbon, molecular sieve and adsorption resin and an eutectic solvent absorption system are integrated; the absorption efficiency of dichloromethane gas generated by volatilization in scientific research and production is improved.

[0016] 2. An on-line monitoring system for volatile organic solvents such as dichloromethane is integrated to perform on-line monitoring on the treated gas, ensure that dichloromethane is completely absorbed, and achieve environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the external structure of an organic solvent treatment and monitoring system proposed by the present utility model;

[0018] Figure 2 is a schematic diagram of the sectional structure of an organic solvent treatment and monitoring system proposed by the present utility model;

[0019] Figure 3 is a schematic diagram of the sectional structure inside the absorption box of an organic solvent treatment and monitoring system proposed by the present utility model.

[0020] In the figure: 1 first barrel, 2 second barrel, 3 first pipe, 4 absorption box, 5 air outlet, 6 activated carbon, 7 molecular sieve, 8 adsorption resin, 9 second pipe, 10 eutectic solvent, 11 third pipe, 12 on-line monitoring box, 13 solenoid valve, 14 fourth pipe, 15 fifth pipe, 16 sixth pipe. DETAILED DESCRIPTION OF THE INVENTION

[0021] The technical solution in the present utility model will be further described below in conjunction with the attached drawings and embodiments.

[0022] Refer to Figures 1 - 3 , an organic solvent treatment monitoring system, comprising: a first barrel 1 and a second barrel 2, the first barrel 1 and the second barrel 2 are placed side by side, a first pipe 3 penetrates and is fixedly connected through the first barrel 1, the lower surface of the first pipe 3 is fixedly connected with an absorption structure, a second pipe 9 penetrates and is fixedly connected between the first barrel 1 and the second barrel 2, an absorption solution is provided in the second barrel 2, the absorption solution is set as a deep eutectic solvent 10, a third pipe 11 penetrates and is fixedly connected through the second barrel 2, and a supervision component is arranged on the third pipe 11;

[0023] The lower end of the second pipe 9 located in the first barrel 1 extends to 5 cm below the inner top surface of the first barrel 1, the lower end of the second pipe 9 located in the second barrel 2 extends to 5 cm above the inner bottom surface of the second barrel 2, and the second pipe 9 extends into the deep eutectic solvent 10;

[0024] The absorption structure includes an absorption box 4, the absorption box 4 is fixedly connected to the inner bottom surface of the first barrel 1, an air outlet 5 is arranged on the side surface of the absorption box 4 away from the first pipe 3, and activated carbon 6, molecular sieve 7 and adsorption resin 8 are fixedly connected in sequence in the absorption box 4;

[0025] The lower end of the third pipe 11 extends to 5 cm below the inner top surface of the second barrel 2;

[0026] The supervision component includes an on-line monitoring box 12, the end of the third pipe 11 is fixedly connected to the on-line monitoring box 12, and the end of the on-line monitoring box 12 is fixedly connected to a fourth pipe 14;

[0027] The end of the fourth pipe 14 is fixedly connected to a solenoid valve 13, and the two output ports of the solenoid valve 13 are respectively fixedly connected to a fifth pipe 15 and a sixth pipe 16, and the end of the sixth pipe 16 is fixedly connected into the first pipe 3.

[0028] The function principle of the present utility model can be elaborated through the following operation modes:

[0029] 1. Dichloromethane gas volatilized during the scientific research or production process enters the treatment system through the first pipe.

[0030] 2. After entering the absorption system, dichloromethane is adsorbed by solid adsorbents such as activated carbon to adsorb the gas containing dichloromethane.

[0031] 3. The gas treated by the absorption system continues to enter the deep eutectic solvent absorption system through the gas passage of the second pipe. And then it is absorbed through the deep eutectic solvent solution system;

[0032] 4. After passing through two dichloromethane treatment systems of adsorption and absorption, the remaining gas is discharged from the system through the No. 3 pipe channel, and online monitoring of dichloromethane is carried out by an online monitor in the monitoring system;

[0033] 5. If the detection is qualified, the remaining gas will pass through the solenoid valve to open the discharge channel and discharge the gas out of the system;

[0034] 6. If the detection fails to meet the standard, the remaining gas will pass through the solenoid valve to open the reflux channel and carry out secondary cyclic absorption of the gas until the remaining gas meets the emission standard.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. An organic solvent treatment monitoring system, characterized in that, It includes a first barrel (1) and a second barrel (2), the first barrel (1) and the second barrel (2) are placed side by side, a first pipe (3) penetrates and is fixedly connected inside the first barrel (1), an absorption structure is fixedly connected to the lower surface of the first pipe (3), a second pipe (9) penetrates and is fixedly connected between the first barrel (1) and the second barrel (2), an absorption solution is provided inside the second barrel (2), the absorption solution is set as a deep eutectic solvent (10), a third pipe (11) penetrates and is fixedly connected inside the second barrel (2), and a supervision component is arranged on the third pipe (11).

2. The monitoring system for organic solvent treatment according to claim 1, characterized in that Wherein: The lower end of the second pipe (9) located inside the first barrel (1) extends to 5 cm below the inner top surface of the first barrel (1), the lower end of the second pipe (9) located inside the second barrel (2) extends to 5 cm above the inner bottom surface of the second barrel (2), and the second pipe (9) extends into the deep eutectic solvent (10).

3. The monitoring system for organic solvent treatment according to claim 1, wherein, Wherein: The absorption structure includes an absorption box (4), the absorption box (4) is fixedly connected to the inner bottom surface of the first barrel (1), an air outlet hole (5) is arranged on the side of the absorption box (4) away from the first pipe (3), and activated carbon (6), molecular sieve (7) and adsorption resin (8) are fixedly connected in sequence inside the absorption box (4).

4. The monitoring system for organic solvent treatment according to claim 1, wherein Wherein: The lower end of the third pipe (11) extends to 5 cm below the inner top surface of the second barrel (2).

5. The monitoring system for organic solvent treatment according to claim 1, characterized in that, Wherein: The supervision component includes an on-line monitoring box (12), the end of the third pipe (11) is fixedly connected to the on-line monitoring box (12), and the end of the on-line monitoring box (12) is fixedly connected to a fourth pipe (14).

6. The monitoring system for organic solvent treatment according to claim 5, wherein Wherein: The end of the fourth pipe (14) is fixedly connected to a solenoid valve (13), two output ports of the solenoid valve (13) are respectively fixedly connected to a fifth pipe (15) and a sixth pipe (16), and the end of the sixth pipe (16) is fixedly connected inside the first pipe (3).

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