Device for optimizing recovery solvent separation by analyzing VOCs (volatile organic compounds) component change in tail gas

Abstract

The utility model discloses a device for optimizing recovery solvent separation by analyzing tail gas V0Cs component change in the technical field of industrial waste gas treatment, which comprises an adsorption tower main body and a spray tower main body, one side of the adsorption tower main body is provided with a first connecting pipe, one side of the spray tower main body is provided with a second connecting pipe, and the first connecting pipe is connected with the second connecting pipe. A main pipe is arranged on one side of the first connecting pipe and the second connecting pipe, a filter and an infrared spectrometer are arranged on the surface of the main pipe, a water distribution pipe is arranged on the inner side of the spray tower main body, and by means of the arranged infrared spectrometer, when the concentration of VOCs in tail gas is detected to be high, an adsorption structure and a spray structure in the spray tower main body can be automatically started; the effect of separating VOCs in the tail gas is achieved, when the infrared spectrometer detects that the concentration of VOCs in the tail gas in the main pipe is low, the VOCs are introduced into the adsorption tower body, selective separation is conducted through the selective permeable membrane according to the polarity difference of the VOCs, and the solvent recovery effect is improved.

Description

Technical Field

[0001] This utility model belongs to the field of industrial waste gas treatment technology, specifically relating to a device for optimizing solvent recovery and separation by analyzing changes in VOCs composition in exhaust gas. Background Technology

[0002] Organic solvents release large amounts of organic matter during use, forming organic exhaust gases, primarily VOCs. These gases pose significant threats to the environment and human health, and also result in substantial resource waste. Economical and effective solvent recovery and recycling not only reduce production costs and generate economic benefits but also minimize environmental pollution, making it a crucial aspect of clean production for enterprises. Furthermore, solvent recovery can significantly reduce resource and energy consumption and environmental pollution during solvent production, thereby reducing greenhouse gas emissions and playing a vital role in strengthening energy conservation and emission reduction.

[0003] Existing VOCs recovery devices typically operate with fixed parameters, making it difficult to cope with dynamic changes in the composition of VOCs in exhaust gas and thus failing to achieve optimal recovery efficiency. To address this, we propose a device that optimizes solvent separation for recovery by analyzing changes in the composition of VOCs in exhaust gas. Utility Model Content

[0004] The purpose of this invention is to provide a device for optimizing solvent recovery and separation by analyzing changes in VOCs composition in exhaust gas, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a device for optimizing solvent recovery and separation by analyzing changes in VOCs composition in exhaust gas, comprising an adsorption tower body and a spray tower body. A first connecting pipe is provided on one side of the adsorption tower body, and a second connecting pipe is provided on one side of the spray tower body. A main pipe is provided on one side of both the first and second connecting pipes. A filter and an infrared spectrometer are provided on the surface of the main pipe. A water distribution pipe is provided inside the spray tower body, and a nozzle is provided on one side of the water distribution pipe. A main water pipe is provided at the top of the spray tower body. Collection pipes are connected to the top of both the adsorption tower body and the spray tower body. A drain outlet is provided on one side of the bottom of the spray tower body. An activated carbon layer and a molecular sieve layer are provided inside the spray tower body, and a selective permeation membrane is provided inside the adsorption tower body.

[0006] Preferably, the first connecting pipe is connected to the lower side of the adsorption tower body, and the second connecting pipe is connected to the lower side of the spray tower body, with a main pipe connected to one side of both the first and second connecting pipes.

[0007] Preferably, a filter is installed inside one end of the main pipe, an infrared spectrometer is installed inside one side of its surface, and a water distribution pipe is fixedly connected to the top inner side of the spray tower body.

[0008] Preferably, multiple nozzles are fixedly connected to one side of the water distribution pipe, and the main water pipe and the water distribution pipe are connected.

[0009] Preferably, a second electronic valve is fixedly installed on one side surface of the first connecting pipe, and a first electronic valve is fixedly installed on one side surface of the second connecting pipe.

[0010] Preferably, an activated carbon layer is installed at the lower interior of the spray tower body, a molecular sieve layer is installed in the middle of the inner side of the spray tower body, and a selective permeation membrane is installed at the upper interior of the adsorption tower body.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] When the infrared spectrometer detects a high concentration of VOCs in the exhaust gas, it automatically activates the adsorption and spraying structures inside the main body of the spray tower to separate VOCs from the exhaust gas. When the infrared spectrometer detects a low concentration of VOCs in the exhaust gas inside the main pipe, it introduces the VOCs into the interior of the adsorption tower and selectively separates them based on the polarity difference of the VOCs through a selective permeation membrane, thereby improving the solvent recovery effect. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of the spray tower body of this utility model;

[0015] Figure 3 This is a schematic diagram of the internal structure of the adsorption tower body of this utility model.

[0016] In the diagram: 1. Adsorption tower body; 2. Spray tower body; 3. Main pipe; 4. Filter; 5. Infrared spectrometer; 6. First connecting pipe; 7. Second connecting pipe; 8. Water distribution pipe; 9. Spray nozzle; 10. Main water pipe; 11. Collection pipe; 12. Drain outlet; 13. Activated carbon layer; 14. Molecular sieve layer; 15. Selective permeation membrane. 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-3 This utility model provides a technical solution: a device for optimizing solvent recovery and separation by analyzing changes in VOCs composition in exhaust gas, comprising an adsorption tower body 1 and a spray tower body 2. A first connecting pipe 6 is provided on one side of the adsorption tower body 1, and a second connecting pipe 7 is provided on one side of the spray tower body 2. A main pipe 3 is provided on one side of the first connecting pipe 6 and the second connecting pipe 7. A filter 4 and an infrared spectrometer 5 are provided on the surface of the main pipe 3. A water distribution pipe 8 is provided inside the spray tower body 2, and a nozzle 9 is provided on one side of the water distribution pipe 8. A main water pipe 10 is provided at the top of the spray tower body 2. A collection pipe 11 is connected to the top of both the adsorption tower body 1 and the spray tower body 2. A drain outlet 12 is provided on one side of the bottom of the spray tower body 2. An activated carbon layer 13 and a molecular sieve layer 14 are provided inside the spray tower body 2. A selective permeation membrane 15 is provided inside the adsorption tower body 1.

[0019] Specifically, the first connecting pipe 6 is connected to the lower side of the adsorption tower body 1, and the second connecting pipe 7 is connected to the lower side of the spray tower body 2. Both the first connecting pipe 6 and the second connecting pipe 7 are connected to a main pipe 3 on one side. A filter 4 is installed inside one end of the main pipe 3, and an infrared spectrometer 5 is installed inside one side of its surface. A water distribution pipe 8 is fixedly connected to the top of the inner side of the spray tower body 2. Multiple nozzles 9 are fixedly connected to one side of the water distribution pipe 8. The main water pipe 10 is connected to the water distribution pipe 8. A second electronic valve 17 is fixedly installed on one side of the surface of the first connecting pipe 6, and a first electronic valve 16 is fixedly installed on one side of the surface of the second connecting pipe 7. An activated carbon layer 13 is installed at the lower interior of the spray tower body 2. A molecular sieve layer 14 is installed in the middle of the inner interior of the spray tower body 2. A selective permeation membrane 15 is installed at the upper interior of the adsorption tower body 1.

[0020] In this embodiment, after connecting the main pipe 3 to the industrial waste gas pipe, the filter 4 can filter the particulate matter and impurities contained in the exhaust gas. The infrared spectrometer 5 can monitor the changes in the types and concentrations of VOCs in the exhaust gas inside the main pipe 3 in real time. When the concentration of VOCs in the exhaust gas is high, the signal is transmitted to the external controller, which will automatically open the first electronic valve 16 and close the second electronic valve 17. After the high concentration of VOCs enters the interior of the spray tower body 2, it will be adsorbed by the activated carbon layer 13 and the molecular sieve layer 14. After connecting the main water pipe 10 to the external water pipe, the absorbent will pass through the interior of the water distribution pipe 8 and finally be sprayed out from the nozzle 9, achieving the effect of separating VOCs in the exhaust gas. When the infrared spectrometer 5 detects that the concentration of VOCs in the exhaust gas inside the main pipe 3 is low, it will automatically open the second electronic valve 17 and close the first electronic valve 16. The selective permeation membrane 15 will selectively separate VOCs according to their polarity differences, improving the solvent recovery effect.

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, which are defined by the appended claims and their equivalents.

Claims

1. A device for optimizing the recovery of solvents separated by analyzing the changes in the composition of the VOCs of the exhaust gas, comprising an adsorption tower body (1) and a spray tower body (2), characterized in that: The side of the adsorption tower body (1) is provided with a first connecting pipe (6), one side of the spray tower body (2) is provided with a second connecting pipe (7), one side of the first connecting pipe (6) and the second connecting pipe (7) is provided with a main pipe (3), the surface of the main pipe (3) is provided with a filter (4) and an infrared spectrometer (5), the inside of the spray tower body (2) is provided with a water distribution pipe (8), one side of the water distribution pipe (8) is provided with a spray head (9), the top of the spray tower body (2) is provided with a main water pipe (10), the upper parts of the adsorption tower body (1) and the spray tower body (2) are connected with a collecting pipe (11), one side of the bottom of the spray tower body (2) is provided with a drain (12), the inside of the spray tower body (2) is provided with an activated carbon layer (13) and a molecular sieve layer (14), the inside of the adsorption tower body (1) is provided with a selective permeation membrane (15).

2. The apparatus for optimizing the recovery of solvents separated by analyzing the changes in the composition of the VOCs of the exhaust gas according to claim 1, characterized in that: The first connecting pipe (6) is connected to the lower side of the adsorption tower body (1), the second connecting pipe (7) is connected to the lower side of the spray tower body (2), and the first connecting pipe (6) and the second connecting pipe (7) are connected with the main pipe (3) on one side.

3. The apparatus for optimizing the recovery of solvents separated by analyzing the changes in the composition of the VOCs of the exhaust gas according to claim 1, characterized in that: The inside of one end of the main pipe (3) is provided with a filter (4), and the inside of one side of the surface thereof is provided with an infrared spectrometer (5), and the inside of the spray tower body (2) is fixedly connected with a water distribution pipe (8) at the top.

4. The apparatus for optimizing the recovery of solvents separated by analyzing the changes in the composition of the VOCs of the exhaust gas according to claim 1, characterized in that: A plurality of spray heads (9) are fixedly connected to one side of the water distribution pipe (8), and the main water pipe (10) is communicated with the water distribution pipe (8).

5. The apparatus for optimizing the recovery of solvents separated by analyzing the changes in the composition of the VOCs of the exhaust gas according to claim 1, characterized in that: A second electronic valve (17) is fixedly installed on one side surface of the first connecting pipe (6), and a first electronic valve (16) is fixedly installed on one side surface of the second connecting pipe (7).

6. The apparatus for optimizing solvent recovery separation by analyzing the change of tail gas VOCs composition according to claim 1, characterized in that: The inside of the spray tower body (2) is provided with an activated carbon layer (13) at the bottom, and a molecular sieve layer (14) is installed in the middle of the inside of the spray tower body (2), and a selective permeation membrane (15) is installed in the inside of the adsorption tower body (1) at the top.

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