Aldehyde removal device

Abstract

The utility model relates to the technical field of air purification, in particular to an aldehyde removal device which comprises an aldehyde removal work box, a motor used for outputting power is fixedly installed at the top end of the aldehyde removal work box, and fan blades used for driving air to flow are fixedly installed on a rotating shaft of the motor. An L-shaped reaction pipe used for reaction is fixedly installed in the formaldehyde removal working box, a liquid conveying pipe used for liquid conveying is fixedly installed in the formaldehyde removal working box, a water pump used for liquid supply is fixedly installed at the bottom end of the liquid conveying pipe, and the L-shaped reaction pipe communicates with the liquid conveying pipe through an atomizer; an electric heating wire for heating is fixedly mounted on the outer side wall of the L-shaped reaction tube, and a control box for controlling is fixedly mounted in the formaldehyde removal working box. The atomizer can atomize the reactant, the atomized reactant is more dispersed, the size is small, the reactant can diffuse in the L-shaped reaction tube, and the effect of more sufficient reaction can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to air purification technical field, especially a kind of formaldehyde removal device. BACKGROUND

[0002] In indoor environment management, effective removal of formaldehyde is crucial;In practical application, formaldehyde removal device usually needs the following technologies:

[0003] 1, physical adsorption mechanism, for example, use activated carbon, zeolite etc.

[0004] 2, chemical decomposition mechanism, using photocatalyst, oxidant etc.

[0005] 3, air purification mechanism, like air filter, equipped with different precision filter screen, remove particulate matter and harmful gas in air.

[0006] Existing Chinese patent: a kind of formaldehyde removal device, patent number: CN205850563U, including frame, the frame is divided into air inlet chamber and with air inlet chamber communication spray chamber, the air inlet chamber is equipped with the air intake device of gas outside the frame into air inlet chamber;The spray chamber is equipped with the treatment device for removing formaldehyde in the air imported by air inlet chamber, and the exhaust device for discharging the air after treatment outside the frame.The utility model discloses by decomposing water into hydroxyl radical with strong oxidizing property, reacts with harmful gas such as formaldehyde, oxidizes into stable substance such as CO2, H2O, inorganic salt etc.

[0007] But in the process of implementation of the above technical scheme, it is found that at least the following technical problems exist: the formaldehyde removal device described above, by spraying, formaldehyde is treated, but the reaction agent sprayed out will quickly drop under the action of gravity, and the reaction agent sprayed out is relatively gathered, its volume is large, so the contact area with formaldehyde is small, and it is difficult to fully react. UTILITY MODEL CONTENT

[0008] In view of the deficiencies of the prior art, the utility model provides a formaldehyde removal device, which solves the technical problems of the formaldehyde removal device described above, which treats formaldehyde by spraying, but the reaction agent sprayed out will quickly drop under the action of gravity, and the reaction agent sprayed out is relatively gathered, its volume is large, so the contact area with formaldehyde is small, and it is difficult to fully react.

[0009] To achieve the above purpose, the utility model is realized by the following technical scheme:

[0010] The utility model provides an aldehyde removal device, including aldehyde removal work box, the top of aldehyde removal work box is fixedly installed with the motor for power output, the rotating shaft of motor is fixedly installed with the fan blade for driving air flow, the inside of aldehyde removal work box is fixedly installed with the L-shaped reaction tube for reaction, the inside of aldehyde removal work box is fixedly installed with the infusion tube for infusion, the bottom of infusion tube is fixedly installed with the water pump for liquid supply, the L-shaped reaction tube and infusion tube are communicated through atomizer, the outside wall of L-shaped reaction tube is fixedly installed with the electric heating wire for heating, the inside of aldehyde removal work box is fixedly installed with the control box for control, and the motor, atomizer, electric heating wire and water pump are connected with control box through wire.

[0011] Preferably, the inside of the aldehyde removal work box is fixedly installed with a high-voltage generator for driving.

[0012] Preferably, the end of the L-shaped reaction tube is fixedly installed with a refluxer for reflux.

[0013] Preferably, the inside of the refluxer is fixedly installed with electrode sheets for recycling in a symmetrical manner.

[0014] Preferably, the top of the aldehyde removal work box is fixedly installed with a dustproof cover for filtration.

[0015] Preferably, the inside of the dustproof cover is fixedly installed with an electric heating tube for preheating.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] I. The water pump starts to send the reaction agent to the atomizer, which atomizes the reaction agent, and then sends it into the L-shaped reaction tube. Here, air will react with the atomized reaction agent. After the reaction, formaldehyde is converted into carbon dioxide and water, which are discharged from the opening of the L-shaped reaction tube. In this process, the electric heating wire is started to heat the L-shaped reaction tube to increase the reaction rate of formaldehyde and the reaction agent. The atomized reaction agent is more dispersed, has a smaller volume, can diffuse inside the L-shaped reaction tube, and has a larger contact area with air, achieving the effect of more fully reacting.

[0018] II. After the high-voltage generator is started, an electrostatic field is formed between the two electrode sheets. After the reaction is completed, the generated carbon dioxide and water, as well as a small amount of incompletely reacted reaction agent, will be carried by the air to the refluxer. The carbon dioxide and water will be discharged along the electrode sheets, while the incompletely reacted atomized reaction agent will be attracted by the two electrode sheets, eventually converging on the electrode sheets, and then flowing back to the inside of the aldehyde removal work box along the opening at the bottom of the refluxer under the action of gravity. Not only can the incompletely reacted reaction agent be recycled, but also the generated water can be prevented from diluting the reaction agent. Attached Figure Description

[0019] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0020] Figure 1 This is a structural diagram of the formaldehyde removal work box of this utility model;

[0021] Figure 2 This is a structural diagram of the motor of this utility model;

[0022] Figure 3 This is a cross-sectional structural diagram of the formaldehyde removal work box of this utility model;

[0023] Figure 4 This is a structural diagram of the reflux device of this utility model;

[0024] Figure 5 This is a structural diagram of the dust cover of this utility model.

[0025] Legend: 1. Formaldehyde removal chamber; 2. Motor; 3. Fan blade; 4. L-shaped reaction tube; 5. Infusion tube; 6. Atomizer; 7. Electric heating wire; 8. Water pump; 9. Control box; 11. High-voltage generator; 12. Reflux device; 13. Electrode plate; 14. Dust cover; 15. Electric heating tube. Detailed Implementation

[0026] The embodiment of the present application effectively solves the above-mentioned formaldehyde removal device, and the reaction agent sprayed out is quickly lowered under the action of gravity, and the reaction agent sprayed out is relatively gathered, the volume is large, and therefore the contact area with formaldehyde is small, and the technical problem that it is difficult to fully react. The water pump starts to send the reaction agent to the atomizer, the atomizer atomizes the reaction agent, and then sends it into the L-shaped reaction tube. Here, the air will react with the atomized reaction agent, and after the reaction, the formaldehyde will be converted into carbon dioxide and water, and then discharged from the opening of the L-shaped reaction tube. In this process, the electric heating wire will start to heat the L-shaped reaction tube to increase the reaction rate of formaldehyde and the reaction agent. The atomized reaction agent is more dispersed, the volume is small, and can diffuse in the inside of the L-shaped reaction tube, and the contact area with air is larger, so that the reaction can be more fully carried out. After the high-voltage generator is started, an electrostatic field is formed between the two electrode sheets. When the reaction is completed, the generated carbon dioxide and water and a small amount of unreacted reaction agent will be carried by the air to the reflux device. The carbon dioxide and water will be discharged along the electrode sheet, and the unreacted atomized reaction agent will be attracted by the two electrode sheets, and finally gathered on the electrode sheet, and then flowed back to the inside of the formaldehyde removal working tank along the opening at the bottom end of the reflux device under the action of gravity. Not only can the unreacted reaction agent be recycled, but also the generated water can be diluted.

[0027] Embodiment

[0028] As Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 indicated, the technical solution in the embodiment of the present application effectively solves the above-mentioned formaldehyde removal device, and the reaction agent sprayed out is quickly lowered under the action of gravity, and the reaction agent sprayed out is relatively gathered, the volume is large, and therefore the contact area with formaldehyde is small, and the technical problem that it is difficult to fully react. The overall idea is as follows:

[0029] In view of the problems in the prior art, the utility model provides a kind of formaldehyde removal device, including formaldehyde removal working tank 1, the top of formaldehyde removal working tank 1 is fixedly installed with the motor 2 for power output, the rotating shaft of motor 2 is fixedly installed with the fan blade 3 for driving air flow, the inside of formaldehyde removal working tank 1 is fixedly installed with the L-shaped reaction tube 4 for reaction, the inside of formaldehyde removal working tank 1 is fixedly installed with the infusion tube 5 for infusion.

[0030] A water pump 8 for supplying liquid is fixedly installed at the bottom of the infusion tube 5. The L-shaped reaction tube 4 and the infusion tube 5 are connected by an atomizer 6. An electric heating wire 7 for heating is fixedly installed on the outer wall of the L-shaped reaction tube 4. A control box 9 for control is fixedly installed inside the formaldehyde removal working box 1. The motor 2, atomizer 6, electric heating wire 7 and water pump 8 are connected to the control box 9 through wires. A high-voltage generator 11 for driving is fixedly installed inside the formaldehyde removal working box 1. The high-voltage generator 11 is connected to the control box 9 through wires. A reflux device 12 for reflux is fixedly installed at the end of the L-shaped reaction tube 4.

[0031] The reflux 12 has symmetrically fixed electrode plates 13 for recycling inside; the electrode plates 13 are connected to the high voltage generator 11 through wires; the top of the formaldehyde removal working box 1 has a dust cover 14 for filtration fixedly installed; the dust cover 14 has an electric heating tube 15 for preheating fixedly installed inside; the electric heating tube 15 is connected to the control box 9 through wires.

[0032] Formaldehyde Removal Working Box 1: As the main body of the device, it provides space for the installation and accommodation of other components, and also serves as a container for the reaction agent;

[0033] Motor 2: Provides power to drive the fan blades 3 to rotate, thereby drawing in air;

[0034] Fan blade 3: Rotation drives airflow, drawing formaldehyde-containing air from outside into the device;

[0035] L-shaped reaction tube 4: This is the main site where air and atomizing reactant react to formaldehyde and reactant to convert it into carbon dioxide and water;

[0036] Infusion tube 5: delivers reactant to nebulizer 6;

[0037] Nebulizer 6: Atomizes the reactant and sends it into the L-shaped reaction tube 4. The atomized reactant has good dispersion, which can increase the contact area with air and improve the reaction rate.

[0038] Pump 8: Responsible for pumping the reactant into the infusion line 5;

[0039] Electric heating wire 7: heats the L-shaped reaction tube 4 to further increase the reaction rate of formaldehyde and reactant;

[0040] Control Box 9: It contains relays and an STM32 microcontroller, which control the operation of various components in the entire device and play a coordinating and management role.

[0041] High voltage generator 11: After starting, it creates an electrostatic field between the two electrode plates 13;

[0042] Refluxer 12: receiving the reacted product, realizing the reflux of the unreacted reactant, while the carbon dioxide and water are discharged;

[0043] Electrode sheet 13: attracting the unreacted atomized reactant under the action of the electrostatic field, making it converge and reflux under the action of gravity;

[0044] Dust cover 14: filtering the dust and impurities in the air to ensure that the air entering the device is relatively clean;

[0045] Electric heating pipe 15: preheating the entering air, which helps the subsequent reaction to proceed.

[0046] Working principle:

[0047] First step, before use, fill the inside of the de-aldehyde working tank 1 with hydrogen peroxide solution and catalyst (hereinafter referred to as reactant) through the filling port, and the inside reactant content can be seen through the observation window at the side end of the de-aldehyde working tank 1. During use, the water pump 8 starts to send the reactant to the atomizer 6, which atomizes the reactant and then sends it to the L-shaped reaction tube 4. The motor 2 starts to drive the fan blade 3 to rotate to suck the external air into the top end of the de-aldehyde working tank 1. In this process, the dust cover 14 will filter the dust and impurities in the air outside. After the electric heating pipe 15 is started, it will preheat the air flowing through it. Then the air will enter each L-shaped reaction tube 4, where it will react with the atomized reactant. After the reaction, the formaldehyde will be converted into carbon dioxide and water, which will be discharged from the opening of the L-shaped reaction tube 4. In this process, the electric heating wire 7 will start to heat the L-shaped reaction tube 4 to increase the reaction rate of formaldehyde and the reactant. The atomized reactant is more dispersed, smaller in volume, can diffuse in the inside of the L-shaped reaction tube 4, and has a larger contact area with air, achieving the effect of more fully reacting.

[0048] Second step, after the high-voltage generator 11 is started, an electrostatic field will be formed between the two electrode sheets 13. When the reaction is complete, the generated carbon dioxide and water, as well as a small amount of unreacted reactant, will be carried by the air to the refluxer 12. The carbon dioxide and water will be discharged along the electrode sheet 13, while the unreacted atomized reactant will be attracted by the two electrode sheets 13, eventually converging on the electrode sheet 13, and then flowing back to the inside of the de-aldehyde working tank 1 along the opening at the bottom end of the refluxer 12 under the action of gravity.

[0049] Finally, it should be noted that: apparently, the above embodiments are merely examples for clearly illustrating the utility model, and are not limited to the implementation. For ordinary skilled persons in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and impossible to exhaust all the implementation. The obvious changes or variations derived therefrom are still within the protection scope of the utility model.

Claims

1. A device for removing aldehydes, comprising an aldehyde-removing working tank (1), characterized in that, The top of the aldehyde removal working box (1) is fixedly installed with a motor (2) for power output, a fan blade (3) for driving air flow is fixedly installed on the rotating shaft of the motor (2), an L-shaped reaction tube (4) for reaction is fixedly installed in the aldehyde removal working box (1), a transfusion tube (5) for transfusion is fixedly installed in the aldehyde removal working box (1), a water pump (8) for liquid supply is fixedly installed at the bottom of the transfusion tube (5), the L-shaped reaction tube (4) and the transfusion tube (5) are communicated through an atomizer (6), an electric heating wire (7) for heating is fixedly installed on the outer side wall of the L-shaped reaction tube (4), a control box (9) for control is fixedly installed in the aldehyde removal working box (1); Wherein, the motor (2), the atomizer (6), the electric heating wire (7) and the water pump (8) are connected with the control box (9) through wires.

2. The aldehyde removal device of claim 1, wherein The inside of the aldehyde removal working box (1) is fixedly installed with a high-voltage generator (11) for driving. Wherein, the high-voltage generator (11) is connected with the control box (9) through wires.

3. The aldehyde removal device of claim 1, wherein, The end of the L-shaped reaction tube (4) is fixedly installed with a refluxer (12) for reflux.

4. An aldehyde removal device as claimed in claim 3, characterized in that The inside of the refluxer (12) is fixedly installed with symmetric electrode sheets (13) for recycling. Wherein, the electrode sheets (13) are connected with the high-voltage generator (11) through wires.

5. The aldehyde removal device of claim 1, wherein, The top of the aldehyde removal working box (1) is fixedly installed with a dustproof cover (14) for filtering.

6. An aldehyde removal device as claimed in claim 5, characterized in that The inside of the dustproof cover (14) is fixedly installed with an electric heating tube (15) for preheating. Wherein, the electric heating tube (15) is connected with the control box (9) through wires.

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