CN201431647Y - A chlorine dioxide gas slow release device for removing indoor formaldehyde - Google Patents

Abstract

The utility model relates to a chlorine dioxide gas slow release device for removing indoor formaldehyde, which is used for removing indoor formaldehyde. The technical scheme is as follows: it comprises a box body and a box cover, the box body contains chlorine dioxide matrix gel, the chlorine dioxide matrix gel is covered with an isolation film, and an activator bag is placed on the isolation film. Compared with the existing indoor formaldehyde pollution elimination technology, the utility model has the following significant advantages: a. The preparation process is simple, the price is low, the use is safe and effective, and no secondary pollution occurs; b. The product is stable and has a long shelf life, and the validity period exceeds two years; c. The release time of chlorine dioxide gas is long, and the released chlorine dioxide gas can quickly oxidize formaldehyde in the air; d. It has the effects of sterilization and deodorization on the air.

Description

A chlorine dioxide gas slow release device for removing indoor formaldehyde

technical field

The utility model relates to an appliance for purifying and disinfecting indoor air, in particular to a slow release device for removing indoor formaldehyde and capable of releasing chlorine dioxide gas slowly and continuously, belonging to the technical field of gas purification appliances.

Background technique

With the development of science and technology, people's living standards are improving day by day, office and family decoration is becoming more and more common, but improper decoration can also bring hidden dangers to people's health. In recent years, incidents of air pollution caused by interior decoration endangering the health of residents have occurred frequently, especially "formaldehyde", which has been recognized as a strong carcinogen, mainly affects the human respiratory tract, and is a source of allergies. It causes cough, chest tightness, asthma, various allergies, eye diseases and nasopharyngeal cancer. At present, there are more than a dozen formaldehyde removers on the market, most of which are liquid preparations, which are sprayed into the space during use, which will waste a lot of active ingredients, and are intermittently operated without continuous effect, and some will cause secondary pollution. Others are adsorption-type formaldehyde removers, which require forced circulation of air to achieve a better removal effect.

Chlorine dioxide is an internationally recognized high-efficiency, non-toxic, fast, and broad-spectrum disinfectant. It has a 100% sterilization effect on bacteria, fungi, viruses, and spores. It can also be used for indoor disinfection through its strong oxidation. Harmful substances such as formaldehyde and toluene in the air have a very ideal degradation effect. Chlorine dioxide has a good deodorizing effect. The atomic oxygen it produces can dehydrate ammonia water into nitrogen, and oxidize hydrogen sulfide, sulfur dioxide, and mercaptans into sulfuric acid or sulfonic acid for removal, thus becoming a A new generation of air pollution purifier with superior performance. However, chlorine dioxide is unstable and difficult to store. It needs to be prepared on site, and a preparation method is needed. Chinese patent No. 200610134083.9 discloses a preparation method of a formaldehyde remover, which uses the prepared chlorine dioxide to remove formaldehyde, but the preparation and application methods provided by this patent are very complicated, and the dosage form for field application is liquid and difficult to move , and the effective use period is very short.

Contents of the invention

The utility model is used to overcome the defects of the prior art and provide a chlorine dioxide gas slow release device for removing indoor formaldehyde which is safe, convenient and does not produce secondary pollution.

Problem described in the utility model is solved by following technical scheme:

A chlorine dioxide gas slow-release device for removing indoor formaldehyde, which includes a box body and a box cover. The box body is filled with chlorine dioxide matrix gel, and the chlorine dioxide matrix gel is covered with an isolation film. Activator bag.

The above atomized hydrogen peroxide indoor formaldehyde removal device, the lower part of the box cover is screwed with the box body, and the upper part of the box cover is provided with a box body placement groove matching the diameter of the box body.

In the above indoor formaldehyde removal device for atomized hydrogen peroxide, the isolation film is a plastic film or an aluminum foil film, the activator bag is a non-woven fabric, and a slow-release activator is housed in the bag.

In the utility model, the chlorine dioxide matrix gel and the slow-release activation bag are placed in the box body, and the middle of the two is separated by an isolation film. When in use, the isolation film is uncovered and the slow-release activation bag is inserted into the chlorine dioxide matrix gel. , the slow-release activator will slowly dissolve in the gel and react with sodium chlorite in the colloid to generate chlorine dioxide gas, which is released from the gel and volatilizes into the air to effectively remove formaldehyde . Compared with the existing technology, it has the following significant advantages: (1) the preparation process is simple, the price is low, the use is safe and effective, and no secondary pollution occurs; (2) the product is stable, the shelf life is long, and the validity period exceeds two years; (3) the two The release time of chlorine oxide gas is long, and the released chlorine dioxide gas can quickly oxidize formaldehyde in the air; (4) it also has the effects of sterilization and deodorization on the air.

Description of drawings

Fig. 1 is the structural representation of the utility model.

The symbols in the figure are as follows: 1-box body; 2-box cover; 2-1-box body placement groove; 3-activator bag; 4-isolation film; 5-chlorine dioxide matrix gel.

Detailed ways

Referring to Fig. 1, the utility model comprises box body 1, box cover 2 in the composition, and box body 1 and box cover 2 threads are screwed together, and the chlorine dioxide precursor gel that is made of sodium chlorite, agar and water is contained in the box body 5. Cover the upper part of the chlorine dioxide matrix gel with a plastic or aluminum foil isolation film 4, place an activator bag 3 filled with a slow-release activator on the isolation film, and the bag body of the activator bag is made of non-woven fabric. The top of the box cover is provided with a box body placement groove 2-1 matched with the box body diameter.

The chlorine dioxide matrix gel described in the utility model uses agar as a gelling agent to stabilize the chlorine dioxide matrix sodium chlorite solution in the gel. The sustained-release activator is powder, which is selected from boric acid, citric acid, tartaric acid, oxalic acid, dihydrogen phosphate, sodium bisulfate, sulfamic acid or a mixture thereof, and is packed in a non-woven bag . When the utility model is used, open the box cover, place the box body in the box body placement groove, tear off the isolation film, insert the activator bag into the gel, and the slow-release activator will slowly dissolve in the gel, And react slowly with sodium chlorite in the gel to generate chlorine dioxide gas, the reaction formula is:

5ClO ₂ ^- +4H ⁺ → 4ClO ₂ +Cl ^- +2H ₂ O

The solubility of chlorine dioxide gas in the gel is low, and part of the chlorine dioxide gas will be released from the gel and volatilized into the air. The released chlorine dioxide gas can quickly oxidize the formaldehyde in the air, and its reaction formula for:

4ClO ₂ +5HCHO==5CO ₂ +4HCl+3H ₂ O

The reaction products are carbon dioxide, water and hydrogen chloride, and the hydrogen chloride can continue to react with the carbonate in the dust to generate chloride without secondary pollution.

The product of the utility model has simple preparation process, low price, safe and effective use, and no secondary pollution. In addition to the function of removing formaldehyde, it can also have multiple functions of disinfection, purification and freshening of the air.

Claims (3)

1. A chlorine dioxide slow-releasing device for removing indoor formaldehyde, characterized in that: the composition includes a box body (1), a lid (2), and the box body is filled with chlorine dioxide precursor gel (5), two The chlorine oxide matrix gel is covered with an isolation membrane (4), and an activator bag (3) is placed on the isolation membrane. 2. The atomized hydrogen peroxide indoor formaldehyde removal device according to claim 1, characterized in that: the lower part of the lid is screwed with the box body, and the upper part of the lid is provided with a box placement groove (2 -1). 3. The atomized hydrogen peroxide indoor formaldehyde removal device according to claim 1 or 2, characterized in that: the isolation film (4) is a plastic film or an aluminum foil film, and the activator bag (3) is a non-woven fabric , the bag is filled with a slow-release activator.

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