CN104329757A - Unpowered portable negative-ion air purification method - Google Patents

Abstract

The invention discloses a method for purifying air with portable unpowered negative ions, which belongs to the fields of air purification and building environment science. Based on the principle of negative ion purification technology, the invention uses a battery-driven negative ion generator to generate a large number of negative ions, which are discharged into the air and combined with the air to form negative oxygen ions, and various physical and chemical processes occur to remove pollutant particles in the air, so as to achieve without the help of fans Power to create a clean and healthy local microenvironment. By checking the power, select the power that is suitable for battery use and human body carrying, and integrate the equipment, and the battery can be carried to achieve easy portability. The whole set of methods comprises a negative ion generator, a battery and a brush for releasing negative ions. This method has the characteristics of no pollution, no mechanical power, no noise, high efficiency, easy to carry, and produces negative oxygen ions that are beneficial to human health. According to actual testing, PM2.5 can be reduced from 200μg/m ³ to 35μg/m ³ within 10 minutes. At the same time, the method can be used in multiple occasions in combination with multiple devices, and has a simple structure and low price.

Description

A method for purifying air with unpowered portable negative ions

technical field

The present invention relates to an air purification method, in particular to a method for purifying air with unpowered portable negative ions

Background technique

my country's current PM2.5 pollution problem is serious, and PM2.5 particles in the indoor environment have seriously endangered people's health, and also caused sick building syndrome and reduced work efficiency. In this context, it is extremely urgent to design a practical PM2.5 air purification method. the

PM2.5 refers to pollutant particles in the air with an aerodynamic equivalent diameter of less than 2.5 μm. It can be suspended in the air for a long time, it is easy to adhere to toxic and harmful substances, and it is difficult to be filtered out by the human respiratory system, which is extremely harmful to the human body. the

At present, the PM2.5 air purifiers on the market are mainly filter type, and a small amount of ionization type, but these devices have significant shortcomings. The filter type requires high-power equipment, requires a fan to provide mechanical power, and has a lot of noise. At the same time, in order to ensure the filtration efficiency, the filter screen needs to be replaced frequently, which is costly. Some electrostatic precipitators are large-scale equipment, which are used in large spaces, and the air quality in the breathing area of the human body cannot be guaranteed. At the same time, these equipment are accompanied by the generation of ozone. A method for purifying air with unpowered portable negative ions involved in the present invention is to use thermal corona to generate negative ions to purify the air. The purification equipment can be integrated in a small space, which is easy to carry around. At the same time, it can effectively ensure the air quality in the breathing area of the human body, and can also generate negative oxygen ions, which have a health care effect on the human body. the

Contents of the invention

The purpose of the present invention is to utilize a kind of method for purifying air with portable negative ions without power to purify air. In particular, it removes particulate matter in the air, making it environmentally friendly, free of secondary pollution, and low in production and maintenance costs. the

Technical scheme of the present invention is as follows:

A method for purifying air with unpowered portable negative ions, which is characterized in that: based on a basic unit for portable air purification, a large amount of negative ions are generated through the negative ion generator in the unit; there is a brush at the end of the negative ion generator, and the negative ion is released to the air through the brush Negative ions; the power of the negative ion generator is 1W, which is driven by the battery in the device, and the battery is easy to replace or recharge; the above-mentioned components are integrated in a space less than 4cm×8cm×3cm, which is easy to carry around. the

The technical feature of the present invention is also that negative ions are generated by heating a single electrode in the form of negative corona discharge, which can greatly reduce the amount of ozone released. the

Another technical feature of the present invention is: the whole set of method has no mechanical power and no noise. The appropriate power is selected through experiments so that the battery can drive the device while ensuring the purification effect. the

Another technical feature of the present invention is that negative oxygen ions beneficial to the human body can be produced simultaneously. the

A kind of unpowered portable negative ion air purification method provided by the present invention is characterized in that said method comprises the following steps:

1) Turn on the switch and start the negative ion generator. After the input direct current passes through the oscillator, amplifying circuit, and switching tube, the discharge needle is controlled by the frequency converter to generate negative ions. The specific production process of negative ions is as follows: Free electrons in the air move and collide with gas atoms and molecules under the action of an external electric field. If the external electric field is large enough, the electrons will have sufficient energy and speed when they collide, resulting in new electrons. The newly generated electrons continue to collide under the action of the electric field to generate more electrons, forming an electron avalanche. At this time, the discharge is converted into a self-sustained discharge, forming a large number of negative ions. the

2) One of the discharge electrodes is connected to the negative electrode and the other is connected to the insulating box to generate a single negative ion. At the same time, the way of heating corona is used to suppress the generation of ozone. the

3) Negative ions are released into the air, and the following two processes occur to purify the air:

①It reacts with air gas to generate negative oxygen ions that are beneficial to the human body. These negative oxygen ions are absorbed by the human body to produce various physiological functions and play a role in health care. It also kills bacteria in the air. the

② Negative ions are combined with pollutant particles, and some pollutants are negatively charged, and migrate to the indoor surface under the action of the electric field to be removed. Part of the pollutants condense with each other to form large particles that directly settle on the indoor surface. Another part of pollutants reacts with negative oxygen ions and is removed. the

In the above scheme, the power of the negative ion generator is 1W, and 12 million negative ions are generated per second. the

Compared with the prior art, the present invention has the following advantages and outstanding technical effects:

① The method for purifying air with unpowered portable negative ions provided by the present invention has remarkable purification effect, and can reduce the PM2.5 value of about ^1m3 in the breathing area of the human body to below 50μg/ ^m3 , meeting health requirements. It has the characteristics of green environmental protection, no secondary pollution, high efficiency, etc.

②This method only needs battery power supply, and the specific operation examples are integrated in a space less than 4cm×8cm×3cm, which is easy to carry around, and has no mechanical power, no noise, low power, and is safe for the human body. truly portable

③This method does not generate ozone and is harmless to the human body. the

④ The method is simple to operate, and the air can be purified to reach the required value in a short time after implementation, and the continuous working time is long, and the cost is low. the

Detailed ways:

The structure, principle and specific implementation of the present invention will be further described below in conjunction with the method and the above-mentioned basic equipment drawings based on the method. the

Fig. 1 is a schematic diagram of the structure principle of a kind of basic equipment provided by the present invention, after charging through the charging socket (8), the portable rechargeable power supply (7) supplies power to the negative ion generating circuit (5) through the power cord (6), so that the The circuit is connected by wires (3), and negative ions are released at the discharge brush (1), so as to achieve the purpose of purifying the air. The whole is surrounded by a shell (2) and fixed by a fixed structure (4). the

The working process of the present invention is as follows:

Taking the above-mentioned basic equipment based on the unpowered portable negative ion air purification method of the invention as an example, first start the negative ion generator, and generate negative ions in the form of negative corona discharge through single-electrode heating, and the negative ions are released into the air through the discharge brush (1). In the air, it combines with air molecules to generate negative oxygen ions, and various reactions mentioned above occur in the air to purify the air. If the battery power is used up, charge the rechargeable power source (7) by the charging socket (8). the

Example:

In a 10m ² room, the measured air change rate is 0.5 times/h. First, light a cigarette in the room for 20 seconds and use a fan to mix the pollutants evenly.

Detect basic equipment performance based on the present invention by two experiments:

1) The performance measurement of the basic equipment of the non-powered portable negative ion air purification method:

Instruments used: two TSI AM510 PM2.5 detection devices, ozone detector

Detection point: one is located 10cm away from the outlet of the air purifier to measure the concentration of pollutants in the purification area. The other is at the same height and farther away in the room, measuring the room concentration. the

Test results: as shown in Figure 2. the

The test interval is 1 minute, and the indoor PM2.5 particle concentration change map is obtained. It can be seen that after turning on the purifier, not only the air quality in the breathing area has been significantly improved, and the PM2.5 concentration has dropped to 35μg/m ³ , but also the room air has been purified, so that the PM2.5 concentration in the room has reached 55μg/m ³ , The purification efficiency of the breathing area reaches 76.7%, and the overall purification efficiency of the room reaches 63.3%, the effect is ideal!

In addition, we also measured the change of the indoor ozone concentration when the basic equipment was turned on, as shown in Figure 3. the

As can be seen from the results, this method does not produce ozone. the

Compared with existing technology:

1), economic calculation comparison: the basic equipment structure of the present invention is simple, and cost is low, and the price of other air purifiers is far higher than the price of our basic equipment structure of this method. the

2) Compared with the fiber filter: the cost of the fiber filter is higher, and in order to ensure the filtration efficiency, the filter screen needs to be replaced regularly, and the filter screen is very expensive. Moreover, the fiber filter needs mechanical power to blow air, which is noisy and interferes with the air distribution in the house. At the same time, the invention can be portable, can be carried around, and has a long working time. the

3) Compared with the existing electrostatic precipitator: the efficiency of the existing electrostatic precipitator is lower than that of the equipment referred to in this patent method, and the existing electrostatic precipitator is relatively large and needs to be connected to AC to work, so it cannot be portable. And it produces ozone at work. the

Description of drawings:

Fig. 1 is a basic equipment structure diagram of a non-powered portable negative ion air purification method; Fig. 2 is a PM2.5 concentration change curve; Fig. 3 is an ozone concentration change curve. the

Claims (5)

1. the way of a unpowered portable anion fine-purification air, it is characterized in that based on above-mentioned elementary cell, wherein anion is produced by negative ion generating circuit (5), is connected by wire (3), in the release of electric discharge hairbrush (1) place; Connect Portable chargeable power (7) by power line (6), powered by charging socket (8); Overall by housing (2) encirclement, fixed by fixed structure (4).

2. according to the way of a kind of unpowered portable anion fine-purification air according to claim 1, it is characterized in that: the equipment based on the method is little because of size, is powered, therefore can accomplish portable by rechargable power supplies (7).

3. according to the way of a kind of unpowered portable anion fine-purification air according to claim 1, it is characterized in that: negative ion generating circuit (5) adopts the form of single electrode heating negative corona discharge to produce anion, reduces below ozone burst size to standard value.

4., according to the way of a kind of unpowered portable anion fine-purification air according to claim 1, it is characterized in that: the equipment based on the method does not rely on machine power, without the need to using blower fan, noiselessness.

5. according to the way of a kind of unpowered portable anion fine-purification air according to claim 1, it is characterized in that: the anion that negative ion generating circuit (5) produces is discharged by hairbrush (1), combine with air molecule, form negative oxygen ion, multiple reaction is there is with air, purify air, useful to health.