CN2126393U

CN2126393U - Air purifier

Info

Publication number: CN2126393U
Application number: CN 92226417
Authority: CN
Inventors: 李鹏; 李建丰; 李建农
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-07-03
Filing date: 1992-07-03
Publication date: 1992-12-30

Abstract

The utility model relates to an indoor air purifier, which belongs to the field of air conditioning and ventilation. The indoor air purifier is composed of an ionization cavity in a housing, a catalytic adsorption filter, a fragrant chamber, a purifying filter, a filter failure sensor, an air inlet filtering net on the housing, an indicating lamp, a gas sensor, and a circuit for controlling the starting and the stopping of a fan. The utility model can remove the ozone produced by the ionization of air and send out flesh, sterile, perfumed and purified air which is beneficial for a human body. In addition, the fan can start or stop automatically, thus, the indoor air purifier has the advantages of convenient use and saving energy. The indoor air purifier is used for purifying the indoor air.

Description

Air purifier

The utility model is a kind of indoor air-purification device, belongs to air conditioning and ventilation field.

Chinese patent CN2035853U ' cleaning machine for indoor air ' and CN2055961U ' multiple-effect air cleaner ' all adopt filtering adsorbing material that air is carried out dedusting is filtered malicious deodorization, is produced negative oxygen ion with high pressure ionization and make with fresh air.But consequent ozone is not taken further measures, and the start and stop of machine all need Artificial Control in addition.

It is pure and fresh and can be according to the air cleaning unit of the concentration automatic start-stop machine of pernicious gas in the air that the purpose of this utility model provides a kind of room air that makes.

The purpose of this utility model realizes by following method: a kind of clarifier with fresh air is made up of the fan in housing and the housing, polishing filter, ionization chamber, in housing along airflow direction at ionization chamber back dress catalysis adsorption filter, dress gas sensor and control the circuit of fan start and stop automatically on the housing.

Contain suitable ozone O3 in the air after the ionization, behind the catalysis adsorption filter, most of ozone is broken down into O2+ (O), and wherein (O) has very strong sterilization and take off the flavor effect.Gas sensor on the housing can be sent voltage signal according to the concentration of indoor harmful gas, and when this voltage signal reaches a certain threshold value or is lower than another threshold value, its control circuit will start or cut out fan electromotor automatically.

The utility model can be removed the ozone that produces behind the air ionization, so favourable health, its automatic start-stop function also makes it have easy to use and energy-saving advantages in addition.

Describe in detail below by drawings and Examples

Fig. 1-Fig. 4 is first to fourth embodiment of the utility model; Fig. 5 is the structure chart of bucket formula catalysis adsorption filter among the embodiment; Fig. 6 is that the A-A of Fig. 5 is to view; Fig. 7 is an automatic start-stop circuit for controlling motor among the embodiment; Fig. 8 is the failure detection circuit among the embodiment.

Fig. 1-clarifier with fresh air shown in Figure 2 is made up of the air inlet screen 5 on fan 2, polishing filter 3, ionization chamber 4 and the housing in housing 1, the housing 1, the housing 1 interior gas sensor 7 that catalysis adsorption filter 6, the sweetening treatment chamber 9 that contains the sweetening treatment material, the polishing filter 3 of materials such as employing manganese dioxide, activated carbon and silica gel is housed in ionization chamber 4 back successively along airflow direction and is used to detect filter effect, polishing filter 3 adopts the W type structure that can increase filter area.The circuit of inefficacy indicator lamp 10,

gas sensor

8 and 2 start and stop of control fan thereof is installed on the housing 1.

During the utility model work, room air enters ionization chamber 4 from air inlet screen 5 and is ionized under electric fan 2 effects, produce negative oxygen ion and ozone O3, ozone is through catalysis adsorption filter 6 be decomposed (O3=O2+ (O)), the newborn oxygen (O) of strong oxidizing property has very strong sterilization and takes off the flavor effect, residual ozone then is adsorbed, and this is after the pure and fresh aseptic fresh air that contains fragrance is sent in sweetening treatment chamber 9, polishing filter 3.

The B pin of NAND gate 15 is high potential at ordinary times among Fig. 7, the resistance of gas sensor 8 reduces with the concentration increase of the pernicious gas of its impression, cause A point current potential to rise, when this concentration reaches certain threshold value, A point current potential rises to the on-level value of NAND gate 15, makes the NAND gate output low level, the level and smooth link of delay that, resistance 17 16 anti-phase through anti-door and electric capacity 18 are formed, it is electric that transistor 19 conductings, relay 20 are got, so its normally opened contact 21 is with fan electromotor and power connection; And when harmful air concentration was lower than another threshold value, the off level value that the A level point will drop to NAND gate made its output high level, and after this process is with above-mentioned opposite.Can find out that thus this circuit plays automatic control fan 2 start and stop.

To increase greatly when the filtering material harmful gas concentration that back gas sensor 7 experiences that lost efficacy in Fig. 8, when reaching a certain concentration thresholding, NAND gate 22 output low levels are lighted indicator lamp 10.

Embodiment 1 adopts and goes up air intake structure, its fan 2 is centrifugal electric fan, and catalysis adsorption filter 6 adopts bucket formula structure shown in Figure 5, is equipped with barrel-shaped metal screen 11 in the figure middle filtrator housing 13, fill catalytic adsorption material 12 in the net, air enters from bucket outside filter screen flows to bucket.For reducing air drag, guiding cone 14 is housed in bucket.

Embodiment 2 adopts air intake structure down, and its catalytic adsorption material is flat, and according to become the inclination angle mode to lay with airflow direction, can increase filter area like this.

The fan that electric fan 2 among the embodiment 3 adopts the small-power electric fan by two switched in opposite to constitute side by side is right.Can do more thinnerly at the following housing 1 of assurance air mass flow situation like this.

Electric fan 2 is tubular electric fans among the embodiment 4.Its advantage is that noise is low, housing thin.

Claims

1, a kind of clarifier with fresh air is made up of the air inlet screen 5 on fan 2, polishing filter 3, ionization chamber 4 and the housing 1 in housing 1, the housing 1, it is characterized in that in ionization chamber 4 back catalysis adsorption filter 6 being housed also along airflow direction in the housing 1, gas sensor 8 is installed on the housing 1 and is controlled the circuit of fan 2 start and stop automatically.

2, by the described clarifier with fresh air of claim 1, it is characterized in that said catalysis adsorption filter 6 is the plane formula filters that become an inclination angle with airflow direction, also can be the bucket formula filter that is added with guiding cone 14, its catalytic adsorption material be made up of manganese dioxide, activated carbon and silica gel.

3,, it is characterized in that also having a sweetening treatment chamber 9 that contains the sweetening treatment material in the back of catalysis adsorption filter 6 along airflow direction in the said housing 1 by the described clarifier with fresh air of claim 1.

4, by the described clarifier with fresh air of claim 1, it is characterized in that in the back of polishing filter 3 gas sensor 7 being housed also along airflow direction in the said housing 1, indicator lamp 10 is arranged on the housing 1.

5, by the described clarifier with fresh air of claim 1, it is characterized in that said fan 2 can be centrifugal fan or cross flow fan, can also be that the fan that constitutes side by side of the small-power electric fan by two switched in opposite is right.