A portable exhaust gas absorption device

Abstract

This utility model discloses a portable exhaust gas absorption device, which includes a base, an exhaust gas inlet connected by pipelines, an extraction pump, a pipeline filter, an exhaust gas tower, a scrubbing tank, a circulation pump, and an exhaust gas outlet valve. The exhaust gas inlet is connected to the extraction pump, the extraction pump is connected to the pipeline filter, and the pipeline filter is connected to the exhaust gas tower. The top of the exhaust gas tower is connected to the exhaust gas outlet valve, the bottom of the exhaust gas tower is connected to the interior of the scrubbing tank, the scrubbing tank is connected to the circulation pump, and the circulation pump is connected to the interior of the exhaust gas tower through a scrubbing liquid circulation pipeline. The interior of the exhaust gas tower is equipped with spray balls, a first packing layer, and a second packing layer. The bottom of the base is equipped with casters. The portable exhaust gas absorption device provided by this utility model avoids exhaust gas leakage and improper emission, improves the flexibility of exhaust gas treatment, reduces the risk of environmental pollution, protects the physical and mental health of operators, and achieves efficient treatment of exhaust gas from mobile pollution sources.

Description

Technical Field

[0001] This utility model relates to the field of chemical equipment technology, specifically to a portable exhaust gas absorption device. Background Technology

[0002] In chemical production processes, a large amount of exhaust gas is often generated. Some of this exhaust gas is harmful to human health and the environment and cannot be directly discharged, requiring special treatment. Current technologies cannot directly connect exhaust gases from mobile pollution sources such as drummed feeders and temporary reaction vessels to process exhaust gas treatment ports via fixed pipelines, resulting in a direct emission rate exceeding 30%, which poses significant risks to human health and the environment. To effectively treat these exhaust gases, a mobile, flexible, and easily disassembled exhaust gas absorption device is needed. However, existing exhaust gas treatment devices suffer from problems such as inflexible device design, low exhaust gas collection rates, and limited processing units.

[0003] Therefore, there is an urgent need in this field for a mobile exhaust gas absorption device that is simple in structure and easy to operate, capable of absorbing and pre-treating non-fixed exhaust gas sources, preventing exhaust gas leakage and improper emissions, improving the flexibility of exhaust gas treatment, reducing the risk of environmental pollution, protecting the physical and mental health of operators, and achieving efficient treatment of exhaust gas from mobile pollution sources. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a portable exhaust gas absorption device, including a base, an exhaust gas inlet, a suction pump, a pipeline filter, an exhaust gas tower, a scrubbing tank, a circulation pump, and an exhaust gas outlet valve. The exhaust gas inlet, suction pump, pipeline filter, exhaust gas tower, scrubbing tank, and circulation pump are internally connected by pipelines.

[0005] The exhaust gas inlet is connected to the extraction pump, the extraction pump is connected to the pipeline filter, and the pipeline filter is connected to the exhaust gas tower.

[0006] The top of the exhaust tower is connected to the exhaust outlet valve, the bottom of the exhaust tower is connected to the interior of the scrubbing tank, the scrubbing tank is connected to the circulation pump, and the circulation pump is connected to the interior of the exhaust tower through the scrubbing liquid circulation pipeline.

[0007] The exhaust gas tower is provided with spray balls, a first packing layer and a second packing layer from top to bottom;

[0008] The base has an armrest on one side and casters at the bottom.

[0009] In one specific embodiment, the exhaust gas inlet is equipped with an LEV horn and a switch for precisely connecting to the exhaust gas source and controlling the intake.

[0010] In one specific embodiment, the exhaust gas inlet and the suction pump are connected by an exhaust gas feed pipeline. The exhaust gas feed pipeline is a foldable articulated arm structure with adjustable length. The exhaust gas feed pipeline is made of fluoropolymer-lined or fiberglass and has a corrosion resistance of ≥95%.

[0011] In one specific embodiment, the circulating pump and the exhaust gas tower are connected by a washing liquid circulation pipeline, which is connected to a spray ball installed inside the exhaust gas tower. The material of the washing liquid circulation pipeline is selected from stainless steel, Hastelloy, or titanium.

[0012] In one specific embodiment, the washing tank contains a washing liquid, which is selected from one or a mixture of two of sodium hypochlorite solution or liquid alkali, and the circulation pump is used to drive the washing liquid to circulate between the washing tank and the spray ball.

[0013] In one specific embodiment, the filler in the first filler layer is selected from activated carbon or resin.

[0014] In one specific embodiment, the filler in the second filler layer is selected from activated carbon or resin.

[0015] In one specific embodiment, the spray ball is a 360-degree rotating spray ball, and the spray coverage area of ​​the spray ball is ≥ 98% of the cross-section of the exhaust gas tower. The spray ball, the first packing layer and the second packing layer arranged from top to bottom in the exhaust gas tower are used to synergistically treat the exhaust gas through spray washing and packing adsorption.

[0016] In one specific embodiment, one end of the exhaust gas outlet valve is connected to the top of the exhaust gas tower, and the other end is connected to an external exhaust gas treatment system through a flange interface.

[0017] A second aspect of this application provides a method for using a portable exhaust gas absorption device, the method being based on the aforementioned portable exhaust gas absorption device, the method comprising the following steps:

[0018] (1) Move the exhaust gas absorption device to the exhaust gas source, adjust the exhaust gas feed pipeline to connect with the exhaust gas discharge point, and lock the casters.

[0019] (2) Start the air pump and adjust the power of the air pump according to the concentration of the exhaust gas to be treated, and pump the exhaust gas to the pipeline filter for filtration.

[0020] (3) The filtered exhaust gas enters the exhaust gas tower and passes through the second packing layer and the first packing layer in sequence. At the same time, the spray ball sprays washing liquid for reverse washing.

[0021] (4) The treated exhaust gas enters the exhaust gas treatment system through the exhaust gas outlet valve to complete the absorption and treatment of the exhaust gas.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0023] 1. The portable exhaust gas absorption device provided by this utility model improves the coverage of exhaust gas from mobile pollution sources and enhances the operational flexibility of the exhaust gas absorption device through the pipeline design of the base, casters, and foldable arms.

[0024] 2. The portable exhaust gas absorption device provided by this utility model improves the exhaust gas treatment efficiency to over 90% through the synergistic effect of the double packing layer and the spray ball. Through the design of the washing tank, the washing liquid can be flexibly replaced for different types of exhaust gas, which has good compatibility and wide applicability, thus improving the exhaust gas treatment efficiency.

[0025] 3. The portable exhaust gas absorption device provided by this utility model has a simple structure and is easy to operate. It absorbs and pre-treats non-fixed exhaust gas sources, avoids exhaust gas leakage and improper emission, reduces the risk of environmental pollution, protects the physical and mental health of operators, and achieves efficient treatment of exhaust gas from mobile pollution sources. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the movable exhaust gas absorption device provided by this utility model.

[0027] In the diagram, 1-base; 2-caster wheel; 3-exhaust gas inlet; 4-exhaust gas feed line; 5-pipe filter; 6-washing liquid circulation line; 7-circulation pump; 8-washing tank; 9-exhaust gas tower; 10-spray ball; 11-first packing layer; 12-second packing layer; 13-exhaust gas outlet valve; 14-vacuum pump. Detailed Implementation

[0028] The technical solution of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Unless otherwise specified, the materials, instruments, and reagents used in the following embodiments can be obtained commercially. Unless otherwise specified, the technical means used in the embodiments are conventional means well known to those skilled in the art.

[0029] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effects and objectives of this utility model, should still fall within the scope of the technical content disclosed in this utility model. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of implementation of this utility model.

[0030] Example 1

[0031] like Figure 1 As shown in the figure, this embodiment illustrates a movable exhaust gas absorption device, including a base 1, an exhaust gas inlet 3, an extraction pump 14, a pipeline filter 5, an exhaust gas tower 9, a scrubbing tank 8, a circulation pump 7, and an exhaust gas outlet valve 13. The exhaust gas inlet 3, the extraction pump 14, the pipeline filter 5, the exhaust gas tower 9, the scrubbing tank 8, and the circulation pump 7 are connected internally by pipelines. Specifically, the exhaust gas inlet 3 is connected to the extraction pump 14, the extraction pump 14 is connected to the pipeline filter 5, and the pipeline filter 5 is connected to the exhaust gas tower 9. The top of the exhaust gas tower 9 is connected to the exhaust gas outlet valve 13, the bottom of the exhaust gas tower 9 is connected to the interior of the scrubbing tank 8, the scrubbing tank 8 is connected to the circulation pump 7, and the circulation pump 7 is connected to the interior of the exhaust gas tower 9 through a scrubbing liquid circulation pipeline 6. The interior of the exhaust gas tower 9 is arranged from top to bottom as follows: a spray ball 10, a first packing layer 11, and a second packing layer 12. The packing material of the first packing layer 11 is selected from activated carbon with a pore size of 2-5 nm, and the packing material of the second packing layer 12 is selected from resin with a pore size of 50-200 nm.

[0032] A handrail is provided on one side of the base 1, and a caster wheel 2 is provided at the bottom of the base 1. The caster wheel 2 has a locking function.

[0033] The exhaust gas inlet 3 is a LEV horn with negative pressure regulation and is equipped with a switch for precise connection to the exhaust gas source and control of the intake.

[0034] The exhaust gas inlet 3 is connected to the vacuum pump 14 via the exhaust gas feed line 4. The exhaust gas feed line 4 is a foldable articulated arm structure with adjustable length, which can be adjusted within the range of 0.5-2m. The material is fluoropolymer-lined or fiberglass, with a corrosion resistance of ≥95%.

[0035] The circulating pump 7 is connected to the exhaust gas tower 9 via a washing liquid circulation pipeline 6. The washing liquid circulation pipeline 6 is connected to the spray ball 10 installed inside the exhaust gas tower 9. The washing liquid circulation pipeline 6 is made of stainless steel, Hastelloy, or titanium. The washing tank 8 contains washing liquid, which is selected from sodium hypochlorite solution or liquid alkali, or a mixture of two of them. The circulating pump 7 is used to drive the washing liquid to circulate between the washing tank 8 and the spray ball 10. It is configured as a circulating pump 7 with liquid level linkage. A liquid level sensor is installed in the washing tank 8, and the circulating pump 7 is connected to the liquid level sensor. When the liquid level is lower than the preset value, it can automatically stop.

[0036] The spray ball 10 is a 360-degree rotating spray ball 10. The spray coverage area of ​​the spray ball 10 is ≥ 98% of the cross-section of the tail gas tower 9. The spray ball 10, the first packing layer 11 and the second packing layer 12 arranged from top to bottom in the tail gas tower 9 are used to treat the tail gas in a coordinated manner by spray washing and packing adsorption.

[0037] One end of the exhaust outlet valve 13 is connected to the top of the exhaust tower 9, and the other end is connected to an external exhaust gas treatment system through a flange interface. The exhaust outlet valve has a built-in pressure sensor to monitor the pressure inside the exhaust tower 9.

[0038] This embodiment also illustrates a method of using the portable exhaust gas absorption device, which, based on the aforementioned portable exhaust gas absorption device, includes the following steps:

[0039] (1) Move the exhaust gas absorption device to the exhaust gas source, adjust the exhaust gas feed line 4 so that it connects to the exhaust gas discharge point, and lock the caster 2.

[0040] (2) Start the vacuum pump 14, adjust the power of the vacuum pump 14 according to the concentration of the exhaust gas to be treated, and pump the exhaust gas to the pipeline filter 5 for filtration.

[0041] (3) The filtered exhaust gas enters the exhaust gas tower 9 and passes through the second packing layer 12 and the first packing layer 11 in sequence. At the same time, the spray ball 10 sprays washing liquid for reverse washing.

[0042] (4) The treated exhaust gas enters the exhaust gas treatment system through the exhaust gas outlet valve 13 to complete the absorption treatment of the exhaust gas.

[0043] In summary, the above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the scope of protection of the present utility model.

Claims

1. A portable exhaust gas absorption device, characterized in that, The system includes a base, an exhaust gas inlet, a vacuum pump, a pipeline filter, an exhaust gas tower, a scrubbing tank, a circulation pump, and an exhaust gas outlet valve. The exhaust gas inlet, vacuum pump, pipeline filter, exhaust gas tower, scrubbing tank, and circulation pump are internally connected via pipelines. The exhaust gas inlet is connected to the extraction pump, the extraction pump is connected to the pipeline filter, and the pipeline filter is connected to the exhaust gas tower. The top of the exhaust tower is connected to the exhaust outlet valve, the bottom of the exhaust tower is connected to the interior of the scrubbing tank, the scrubbing tank is connected to the circulation pump, and the circulation pump is connected to the interior of the exhaust tower through the scrubbing liquid circulation pipeline. The exhaust gas tower is provided with spray balls, a first packing layer and a second packing layer from top to bottom; The base has an armrest on one side and casters at the bottom.

2. The portable exhaust gas absorption device according to claim 1, characterized in that, The exhaust gas inlet is equipped with an LEV horn and a switch for precise connection to the exhaust gas source and control of the intake.

3. The portable exhaust gas absorption device according to claim 1, characterized in that, The exhaust gas inlet is connected to the suction pump via an exhaust gas feed pipeline. The exhaust gas feed pipeline has an adjustable length and a foldable articulated arm structure. The exhaust gas feed pipeline is made of fluoropolymer-lined or fiberglass and has a corrosion resistance of ≥95%.

4. The portable exhaust gas absorption device according to claim 1, characterized in that, The circulating pump is connected to the exhaust gas tower via a washing liquid circulation pipeline, which is connected to a spray ball installed inside the exhaust gas tower. The washing liquid circulation pipeline is made of one of stainless steel, Hastelloy, or titanium.

5. The portable exhaust gas absorption device according to claim 1, characterized in that, The washing tank contains a washing solution selected from one or a mixture of two of sodium hypochlorite solution or liquid alkali. The circulation pump is used to drive the washing solution to circulate between the washing tank and the spray ball.

6. The portable exhaust gas absorption device according to claim 1, characterized in that, The filler in the first filler layer is selected from activated carbon or resin.

7. The portable exhaust gas absorption device according to claim 1, characterized in that, The filler in the second filler layer is selected from activated carbon or resin.

8. The portable exhaust gas absorption device according to claim 1, characterized in that, The spray ball is a 360-degree rotating spray ball, and the spray coverage area of ​​the spray ball is ≥ 98% of the cross-section of the exhaust gas tower. The spray ball, the first packing layer and the second packing layer arranged from top to bottom in the exhaust gas tower are used to treat the exhaust gas in a coordinated manner through spray washing and packing adsorption.

9. The portable exhaust gas absorption device according to claim 1, characterized in that, One end of the exhaust gas outlet valve is connected to the top of the exhaust gas tower, and the other end is connected to an external exhaust gas treatment system through a flange interface.

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