An industrial formaldehyde waste gas collection device

By using a vacuum pump and a U-shaped tube structure in industrial formaldehyde waste gas collection equipment, full contact and secondary filtration of formaldehyde waste gas with solvent are achieved, solving the problem of low formaldehyde gas dissolution rate and improving waste gas treatment efficiency.

CN224422409UActive Publication Date: 2026-06-30YUNNAN YUANFAN NEW MATERIALS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YUNNAN YUANFAN NEW MATERIALS CO LTD
Filing Date
2025-07-11
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing industrial formaldehyde waste gas collection equipment has an insufficient formaldehyde gas dissolution rate, which affects the waste gas treatment efficiency.

Method used

An industrial formaldehyde waste gas collection device was designed. The formaldehyde waste gas is introduced into the dispersion tube by the suction force generated by the air pump, so that it can fully contact the solvent. The U-shaped tube is used to achieve secondary filtration, thereby improving the formaldehyde absorption rate.

Benefits of technology

It enables multiple treatments of formaldehyde, increases the formaldehyde absorption rate, makes formaldehyde adsorption more thorough, and improves the efficiency of waste gas treatment.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224422409U_ABST
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Abstract

This utility model relates to the field of industrial formaldehyde waste gas treatment technology, and discloses an industrial formaldehyde waste gas collection device, including a treatment box for treating formaldehyde waste gas and storing solvent. The treatment box is square in shape. An air pump is used to extract and guide the formaldehyde waste gas. The air pump is fixedly installed on the right side of the treatment box. A gas collection pipe is used to disperse and guide the formaldehyde waste gas. Multiple U-shaped pipes are installed inside a partition. This industrial formaldehyde waste gas collection device generates suction by turning on the air pump, which guides the formaldehyde waste gas through the dust collection hood into the gas collection pipe. The gas collection pipe inputs the formaldehyde waste gas into the dispersion pipe, so that the formaldehyde waste gas can fully contact the solvent, improving the formaldehyde absorption rate. The formaldehyde waste gas enters the upper part of the partition through the U-shaped pipe, where it undergoes secondary filtration with the solvent, achieving the effect of secondary treatment of formaldehyde waste gas. It can perform multiple treatments while improving the formaldehyde absorption rate, making the formaldehyde adsorption more thorough.
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Description

Technical Field

[0001] This utility model relates to the field of industrial formaldehyde waste gas treatment technology, specifically to an industrial formaldehyde waste gas collection device. Background Technology

[0002] Formaldehyde is an organic chemical substance, a colorless and irritating gas that can irritate the eyes and nose. The International Agency for Research on Cancer of the World Health Organization lists formaldehyde as a Group 1 carcinogen. Furniture we use every day, such as wardrobes and sofas, uses adhesives due to manufacturing processes, which are common sources of indoor formaldehyde release. Therefore, a formaldehyde waste gas treatment device is needed.

[0003] In industrial formaldehyde waste gas, formaldehyde accounts for the majority, while other gases account for a small portion. Therefore, formaldehyde gas is usually filtered and purified for collection. Currently, formaldehyde is usually collected by passing the gas into a solvent to obtain a formaldehyde solution for reuse.

[0004] However, the existing equipment does not have a high enough formaldehyde gas dissolution rate, which affects the efficiency of waste gas treatment. Utility Model Content

[0005] In view of the shortcomings of the prior art, this utility model provides an industrial formaldehyde waste gas collection device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an industrial formaldehyde waste gas collection device, comprising:

[0007] A treatment box for treating formaldehyde waste gas and storing solvents, the treatment box being square in shape;

[0008] An air extraction pump is used to extract and guide formaldehyde waste gas, and the air extraction pump is fixedly installed on the right side of the treatment box;

[0009] A gas collecting pipe is used to guide gas, and the gas collecting pipe is fixedly installed at the gas inlet end of the air pump.

[0010] The gas guide tube is fixedly installed at the output end of the air pump and is used to guide the gas.

[0011] Dispersion tubes are used to disperse formaldehyde gas, and multiple dispersion tubes are fixedly inserted inside the treatment box.

[0012] A partition is used to separate the treated waste gas, and the partition is fixedly installed inside the treatment box;

[0013] Multiple U-shaped tubes are used to disperse and guide formaldehyde exhaust gas, and the multiple U-shaped tubes are installed through the interior of the partition.

[0014] Two drain pipes are provided for discharging solvent, and the two drain pipes are installed through the interior of the processing tank;

[0015] Two water inlet pipes are used for filling solvent, and the two water inlet pipes are installed through the inside of the processing tank;

[0016] An air guide frame is used to guide the filtered exhaust gas, and the air guide frame is installed throughout the interior of the treatment box.

[0017] Preferred options also include:

[0018] Multiple observation windows are provided for easy observation of the solvent level inside the processing chamber. These observation windows are arranged symmetrically on both sides of the two partitions inside the processing chamber.

[0019] Preferred options also include:

[0020] The drain pipe mentioned above is located above the partition and is used to drain the solvent above the partition;

[0021] The drain pipe described below is located near the bottom of the processing tank and is used to drain the solvent below the partition.

[0022] Preferred options also include:

[0023] Storage chamber one and storage chamber two are used to store solvent. The processing box and the upper part of the partition form storage chamber one, and the processing box and the lower part of the partition form storage chamber two.

[0024] The upper water inlet pipe is located above the partition, near the top of the treatment tank, and is used to inject solvent into the upper part of the partition.

[0025] The lower water inlet pipe is located below the partition, near the bottom of the partition, and is used to fill the liquid storage chamber 2 with solvent.

[0026] Preferably, each of the plurality of dispersion tubes has several air outlets inside, and the output ends of the plurality of U-shaped tubes are submerged below the solvent level.

[0027] Preferred options also include:

[0028] A gas collection hood is used to collect and guide formaldehyde waste gas. The gas collection hood is located at the right end of the gas collection pipe and is connected to an exhaust fan.

[0029] Compared with the prior art, the beneficial effects of this utility model are:

[0030] 1. This industrial formaldehyde waste gas collection equipment uses a suction pump to draw formaldehyde waste gas through a dust collection hood into a gas duct. The gas duct then introduces the formaldehyde waste gas into a dispersion tube, allowing it to fully contact the solvent and increasing the formaldehyde absorption rate. Formaldehyde waste gas below the baffle enters above the baffle through a U-shaped tube. The output end of the U-shaped tube is submerged in the solvent, allowing for secondary filtration of the formaldehyde waste gas. This achieves a secondary treatment effect, increasing the formaldehyde absorption rate while performing multiple treatments for more thorough formaldehyde adsorption.

[0031] 2. This industrial formaldehyde waste gas collection equipment allows for convenient observation of the solvent level inside the treatment tank through observation windows, enabling real-time monitoring of the solvent level. The observation windows are located on both sides of the partition, allowing for layered observation of the upper and lower liquid levels. Attached Figure Description

[0032] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model;

[0033] Figure 2 This is a side view of the structure of this utility model;

[0034] Figure 3 This is a frontal sectional view of the structure of this utility model.

[0035] In the diagram: 1. Processing box; 2. Air pump; 3. Air collection pipe; 4. Air guide pipe; 5. Dispersion pipe; 6. Baffle plate; 7. U-shaped pipe; 8. Drain pipe; 9. Water inlet pipe; 10. Air guide frame. Detailed Implementation

[0036] 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.

[0037] Example:

[0038] Please refer to Figures 1-3.

[0039] An industrial formaldehyde waste gas collection device includes:

[0040] Treatment box 1 is used to treat formaldehyde waste gas and store solvents. Treatment box 1 is square in shape.

[0041] The air pump 2 is used to extract and guide formaldehyde waste gas. The air pump 2 is fixedly installed on the right side of the treatment box 1.

[0042] Gas collecting pipe 3 is used to guide gas. Gas collecting pipe 3 is fixedly installed at the air inlet end of air pump 2.

[0043] The gas guide pipe 4 is fixedly installed at the output end of the air pump 2 and is used to guide the gas.

[0044] Dispersion tube 5 is used to disperse formaldehyde gas. Multiple dispersion tubes 5 are fixedly inserted inside the treatment box 1.

[0045] The partition 6 is used to separate the treated waste gas, and the partition 6 is fixedly installed inside the treatment box 1;

[0046] Multiple U-shaped tubes 7 are used to disperse and guide formaldehyde exhaust gas, and multiple U-shaped tubes 7 are installed inside the partition 6.

[0047] Two drain pipes 8 are used to drain the solvent, and the two drain pipes 8 are installed inside the processing tank 1.

[0048] Two water inlet pipes 9 are used for filling solvent, and the two water inlet pipes 9 are installed inside the processing tank 1.

[0049] The air guide frame 10 is used to guide the filtered exhaust gas, and the air guide frame 10 is installed through the inside of the treatment box 1.

[0050] Specifically, when formaldehyde waste gas needs to be absorbed and treated, solvent is introduced into the upper and lower parts of the partition 6 through two water inlet pipes 9, and the solvent is introduced into the interior of the treatment tank 1, so that the U-shaped tube 7 is submerged below the solvent level. Then, the air pump 2 is turned on, and the air pump 2 generates suction to create a negative pressure inside the gas collection pipe 3. The formaldehyde waste gas is guided into the interior of the gas guide pipe 4 through the dust collection hood. The gas guide pipe 4 introduces the formaldehyde waste gas into the interior of the dispersion pipe 5, thus achieving the effect of dispersing the gas through the outlet holes. This allows the formaldehyde waste gas to fully contact the solvent, improving the formaldehyde absorption rate. When the air pressure below the partition 6 increases, the formaldehyde waste gas below the partition 6 will enter the upper part of the partition 6 through the U-shaped tube 7 under the action of air pressure. Since the output end of the U-shaped tube 7 is submerged below the solvent, the formaldehyde waste gas will undergo secondary filtration with the solvent, achieving the effect of secondary treatment of formaldehyde waste gas. This can improve the formaldehyde absorption rate while performing multiple treatments, making the formaldehyde adsorption more thorough.

[0051] In the embodiment, it also includes:

[0052] Multiple observation windows are provided for easy observation of the solvent level inside the processing tank 1. The multiple observation windows are located inside the processing tank 1 and are symmetrically arranged on both sides of the two partitions 6.

[0053] Specifically, the observation window facilitates observation of the solvent level inside the processing tank 1, enabling real-time observation of the solvent level. The observation window is located on both sides of the partition 6, allowing for layered observation of the upper and lower liquid levels.

[0054] In the embodiment, it also includes:

[0055] The upper drain pipe 8 is located above the partition 6 and is used to drain the solvent above the partition 6;

[0056] The lower drain pipe 8 is located near the bottom of the processing tank 1 and is used to drain the solvent below the partition 6;

[0057] Specifically, the upper drain pipe 8 and the lower drain pipe 8 are used to drain the used solvent, thereby achieving the effect of draining the solvent;

[0058] In the embodiment, it also includes:

[0059] Storage chamber one and storage chamber two are used to store solvent. The processing tank 1 and the upper part of the partition 6 form storage chamber one, and the processing tank 1 and the lower part of the partition 6 form storage chamber two.

[0060] The upper water inlet pipe 9 is located above the partition 6 near the top of the treatment tank 1, and is used to inject solvent into the upper part of the partition 6.

[0061] The lower water inlet pipe 9 is located below the partition 6, near the bottom of the partition 6, and is used to fill the liquid storage chamber 2 with solvent.

[0062] Specifically, both the first and second liquid storage chambers are equipped with solvents to absorb formaldehyde waste gas. The water inlet pipe 9 is used to place solvents above and below the partition 6 to improve the formaldehyde absorption rate.

[0063] In the embodiment: the interior of each of the multiple dispersion tubes 5 is provided with several air outlets, and the output ends of the multiple U-shaped tubes 7 are immersed below the solvent level;

[0064] Specifically, the dispersion tube 5 has several air outlets inside, which can evenly disperse the waste gas and increase the formaldehyde absorption rate. The output end of the U-shaped tube 7 is immersed in the solvent, which can immerse the waste gas guided below into the solvent for secondary filtration, accelerate the fusion of formaldehyde, and improve the formaldehyde absorption rate.

[0065] In the embodiment, it also includes:

[0066] The gas collection hood is used to collect and guide formaldehyde exhaust gas. The gas collection hood is located at the right end of the gas collection pipe 3, and an exhaust fan is connected to the outside of the gas collection hood.

[0067] Specifically, the gas collection hood is used to assist in collecting gas, so as to guide the formaldehyde waste gas into the gas collection pipe 3. The exhaust fan is used to generate thrust to input the formaldehyde waste gas into the gas collection hood. The air pump 2 is turned on, and the air pump 2 will generate suction to input the formaldehyde waste gas into the gas guide pipe 4. The gas guide pipe 4 disperses the formaldehyde waste gas into the dispersion pipe 5. Then the formaldehyde waste gas is discharged through the gas outlet. After the formaldehyde waste gas is dispersed, the dispersed formaldehyde waste gas comes into full contact with the solvent, thereby increasing the absorption rate of formaldehyde in the waste gas.

[0068] In this embodiment: the air pump 2 is an existing structure, and the control circuit can be implemented by a person skilled in the art through simple programming. It is common knowledge in the art, and it is only used without modification. Therefore, the control method and circuit connection will not be described in detail.

[0069] Working principle: When the air pump 2 is turned on, it generates suction to guide the formaldehyde waste gas through the dust collection hood into the air guide pipe 4. The air guide pipe 4 then inputs the formaldehyde waste gas into the dispersion pipe 5, allowing the formaldehyde waste gas to fully contact the solvent, thereby increasing the formaldehyde absorption rate. The formaldehyde waste gas below the partition 6 will enter the area above the partition 6 through the U-shaped pipe 7. The output end of the U-shaped pipe 7 is immersed in the solvent, and the formaldehyde waste gas will undergo secondary filtration with the solvent, achieving the effect of secondary treatment of formaldehyde waste gas. This allows for multiple treatments while increasing the formaldehyde absorption rate, resulting in more thorough formaldehyde adsorption.

[0070] 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, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An industrial formaldehyde waste gas collection device, characterized in that, include: The treatment box (1) is used to treat formaldehyde waste gas and store solvents, and the treatment box (1) is square in shape; A vacuum pump (2) is used to extract and guide formaldehyde waste gas. The vacuum pump (2) is fixedly installed on the right side of the treatment box (1). A gas collecting pipe (3) is used to guide gas, and the gas collecting pipe (3) is fixedly installed at the gas inlet end of the gas pump (2); The gas guide tube (4) is fixedly installed at the output end of the air pump (2) and is used to guide the gas. Dispersion tubes (5) are used to disperse formaldehyde gas, and multiple dispersion tubes (5) are fixedly inserted inside the treatment box (1); A partition (6) is used to separate the treated waste gas, and the partition (6) is fixedly installed inside the treatment box (1); Multiple U-shaped tubes (7) are used to disperse and guide formaldehyde exhaust gas, and the multiple U-shaped tubes (7) are installed through the interior of the partition (6); Two drain pipes (8) are used to discharge solvent, and the two drain pipes (8) are installed through the interior of the processing tank (1); Two water inlet pipes (9) are used for filling solvent, and the two water inlet pipes (9) are installed through the inside of the processing tank (1); The air guide frame (10) is used to guide the filtered exhaust gas. The air guide frame (10) is installed inside the treatment box (1).

2. The industrial formaldehyde waste gas collection device according to claim 1, characterized in that, Also includes: Multiple observation windows are provided for easy observation of the solvent level inside the processing tank (1). The multiple observation windows are arranged inside the processing tank (1) and are symmetrically arranged on both sides of the two partitions (6).

3. The industrial formaldehyde waste gas collection device according to claim 1, characterized in that, Also includes: The drain pipe (8) mentioned above is located above the partition (6) and is used to discharge the solvent above the partition (6); The drain pipe (8) described below is located near the bottom of the processing tank (1) and is used to drain the solvent below the partition (6).

4. The industrial formaldehyde waste gas collection device according to claim 1, characterized in that, Also includes: Storage chamber one and storage chamber two are used to store solvent. The processing box (1) and the upper part of the partition (6) form storage chamber one, and the processing box (1) and the lower part of the partition (6) form storage chamber two. The upper water inlet pipe (9) is located above the partition (6) near the top of the treatment tank (1) and is used to inject solvent into the upper part of the partition (6); The lower water inlet pipe (9) is located below the partition (6) and near the bottom of the partition (6) for injecting solvent into the storage chamber.

5. The industrial formaldehyde waste gas collection device according to claim 1, characterized in that: Each of the multiple dispersion tubes (5) has several air outlets inside, and the output ends of the multiple U-shaped tubes (7) are submerged below the solvent level.

6. The industrial formaldehyde waste gas collection device according to claim 1, characterized in that, Also includes: A gas collection hood is used to collect and guide formaldehyde waste gas. The gas collection hood is located at the right end of the gas collection pipe (3), and an exhaust fan is connected to the outside of the gas collection hood.