KR20130020164A

KR20130020164A - Push-fan and pull-fan type air cleaning device

Info

Publication number: KR20130020164A
Application number: KR1020110082609A
Authority: KR
Inventors: 이승현
Original assignee: 이승현
Priority date: 2011-08-19
Filing date: 2011-08-19
Publication date: 2013-02-27

Abstract

The present invention provides a push fan and a full fan mixed air cleaning system, the inlet and the exhaust port is provided with a casing having an air passage between the intake and exhaust; A filter consisting of a series of air filter combinations and installed on an air passage of the casing; A push fan installed at an intake port in front of the filter; And a full fan installed on the rear air passage of the filter, so that external air suction by the push fan and external air discharge by the pull fan are simultaneously performed in the casing.

Description

Push-fan and pull-fan type air cleaning device

The present invention relates to a push fan and a full fan mixed air cleaning system applied to an air cleaning system, and in detail, the air cleaning system including a filter is composed of a push fan and a full fan mixed type to reduce the performance due to pressure loss in the filter. It is related to a push fan and a full fan mixed air cleaning system.

In air cleaning, the filtration method by filter is applied to various air cleaning systems such as medium performance, high performance, industrial or home use because it has excellent collection performance of suspended dust including fine dust.

The filter consists of a combination of a pre-filter, a neutral performance filter, a high-performance filter, and an air filter such as a deodorizing filter and an ozone filter used to achieve a special purpose.The filter is installed in a casing and a fan is installed at the rear of the filter. The collection theory is applied to filter and adsorptively collect fine noxious particles by forming an air stream passing through the filter by suction pressure.

Since the air filter constituting the filter is usually a fibrous layered structure having a high space ratio, the collection of fine particles is an inertia in which particles close to each other through the flow of air escape from the airflow by their inertia and collide with the fiber layer of the filter. Inertia, small particle size, small filtration rate, brownian diffusion separated from the air stream by the Brownian motion irrespective of the air flow, brownian diffusion, and particles of different sizes are sequentially This is achieved by the interception effect of colliding with the fibers of the filter, the gravitational effect of sedimentation and sedimentation on the fibers of the filter, away from the airflow by the gravity of the particles, and the formation of airflow through the filter. It is a collection condition.

In order to form a air flow in the filter, a method of forming a pushing air in the filter by installing a fan in front of the filter in the casing (hereinafter referred to as a push fan) is an electrostatic precipitating method or a water washing method in which the air flow passage resistance is not large. Alternatively, the present invention can be usefully applied to the plasma method, but in the filtration method having a large passage resistance of airflow, there is a limit in applying the wind pressure required to obtain an optimum filtration rate, which is rarely used.

In order to create air flow in the filter, a method of forming a suction air in the filter by installing a fan at the rear of the filter in the casing (hereinafter referred to as a pull fan) has a coanda effect (the energy consumption is the least when air flows). Due to the flowing effect), it is possible to form an effective airflow in the filter, so most air cleaners including the filter employ a full fan method.

However, the existing full fan method has the following problems.

First, pressure loss occurs in the passage of airflow through the filter fibers, and the pressure loss increases as the pre-filter among the high-performance filter. The pressure loss can be reduced by increasing the media area, but in the case of air cleaners, the media area is limited. As such, there is a problem that the HEPA filter, ULPA, which is applied to the fine-floating dust filtration of 3 μm or less, which is more lethal to the human respiratory tract, cannot be effectively applied due to the load on the fan.

In addition, the general filter applied air cleaning system is the main object to remove fine dust, can contribute to the collection of suspended fungi attached to the fine dust, but there is a limit to prevent the proliferation and secondary diffusion of the collected suspended fungi, gaseous substances Removal and proliferation diffusion prevention are limited or ineffective. Therefore, in order to maintain a high performance clean system, it is desirable to add a catalytic reaction system, an electrostatic precipitation, plasma ions, and an ultraviolet light system to the filtration clean method. In the conventional full fan system, these additional functional elements are inevitably increased due to the increase in suction load. There was a limit to performance improvement.

In addition, in the air cleaning system used in the limited indoor space, the amount of fine dust or suspended fungi removed in the entire interior space is determined by the number of times of passage of the total air volume by the air intake of the air cleaning system. The factors that directly affect the clean performance, but the existing full fan type air cleaning system has a limit that can not be secured at least once / hour unless the capacity of the fan is excessively increased.

Second, indoor air formation can increase the removal efficiency of fine dust and floating fungi while the air cleaning system is in operation (Jung, Choi, 2009, 21 (1)). In the absence of indoor airflow, the number of suspended fungi in the air may decrease over time in a stagnant indoor environment due to gravity settling, but it must be removed in the presence of airflow as it rises immediately by the airflow generated by human activities. .

However, the existing full fan structure has a low intake pressure by applying an intake flow path and a small displacement, and thus cannot form an appropriate indoor airflow, which is limited in effectively circulating and cleaning a large indoor space.

Third, as the filter is saturated, the pressure reduction phenomenon increases, thereby increasing noise and load, and increasing power consumption.

Fourth, the noise is increased, such as saturation during heavy rain (rainy season), the load is increased, the power consumption is increased, it is difficult to perform normal functions.

Fifth, secondary diffusion inevitably occurs at saturation. In other words, the filtration filter collects particulate matter such as fine dust and suspended fungi together, and saturates because only the passive direct contact part maintains antimicrobial properties even when an antimicrobial filter by silver nano or bioenzyme coating is applied. As it progresses, there is a limit to preventing secondary spread of pollutants.

Meanwhile, the above-described conventional filtration method is not usually used alone, but an apparatus for removing suspended fungi (bacteria, mold, viruses, etc.) and gaseous substances (odors, VOCs, exhaust gases, etc.) such as electrostatic precipitating, plasma ions, ultraviolet rays, and ozone sterilization Used together to form a high performance clean system.

In systems such as electrostatic precipitating, plasma ions, and ultraviolet rays, the removal rate can be increased by increasing the contact probability with suspended fungi or gaseous substances, but the flow of air in the intake flow path by a full fan is a direct flow with directivity due to the Coanda effect. By forming, the contact probability for reaction with these systems is lowered, thereby limiting the improvement of the removal performance.

The present invention solves the performance decrease due to the increase in load when the high performance filter is used in the air cleaning system including the filter, the increase in full fan load caused by the addition of a treatment device for sterilization of suspended fungi or decomposition of gaseous substances, In addition, even if the filtration area of the air cleaner is limited, such as for office use, it is possible to use a high performance air filter to configure a high performance air cleaning system of a compact structure.

In addition, the present invention increases the intake pressure of the air cleaning system to increase the amount of air flowing through the system to increase the indoor circulation cleaning efficiency by forming the air flow itself without reducing the air flow by the external air conditioning system, and shorten the time for removing harmful substances It is intended for the purpose.

In addition, the present invention has the object of reducing the noise of the air cleaning system used indoors to enable a comfortable use, to operate even in a humid (rainy season), and to solve the problem that the power consumption is increased by the load increase.

In addition, the present invention provides a push fan and a full fan mixed air cleaning system having a structure in which the filtered air is provided with an appropriate humidity by vaporization and humidification, and the final discharge air is further filtered by a humidification filter to further improve clean performance.

In addition, the present invention forms a positive pressure in a space where a treatment system for removing suspended fungi (bacteria, fungi, viruses, etc.) and gaseous substances (odors, VOCs, exhaust gases, etc.) such as electrostatic precipitating, plasma ions, ultraviolet rays, and ozone sterilization is installed. In this paper, we propose a push-pan and full-pan mixed air cleaning system that can improve the cleanliness performance by increasing the probability of reactive contact between suspended fungi or gaseous substances and processing systems.

In order to achieve the above object, the push-pan and full-pan mixed air cleaning system according to the present invention, the inlet and the exhaust port is provided with a casing is provided with an air passage between the intake and exhaust, and a series of air filter combinations of the casing External air intake by the push fan and external air by the full fan in the casing, including a filter installed on the air passage, a push fan installed on the air inlet in front of the filter, and a full fan installed on the air passage behind the filter. The present invention proposes a push fan and full fan mixed air cleaning system, characterized in that the discharge is performed at the same time.

In another aspect, the present invention, the positive pressure chamber is formed on the air passage between the push pan and the filter, the positive pressure chamber is formed in the positive pressure chamber, characterized in that the reaction treatment apparatus for purifying the suspended fungi and gaseous substances formed by mixing the push fan and full fan Present an air cleaning system.

In addition, the present invention provides a push fan and a full fan mixed air cleaning system for providing a humidified clean air by forming a vaporization humidification chamber on an air passage between the full fan and the exhaust port, and providing vaporization humidification means thereto.

With the above configuration, the present invention has the following effects.

First, in the present invention, the suction of the external air by the push fan at the intake portion and the discharge of the clean air via the filter at the exhaust portion are simultaneously performed.

Accordingly, the amount of air flowing through the filter is increased to enable the use of a high performance filter such as a HEPA filter without increasing the filter area, and thus, it is possible to effectively collect fine suspended particles having a high risk of 3 μm or less.

In addition, since the load of the fan for maintaining the ventilation amount is reduced and the wind pressure is maintained, it is possible to additionally install a catalytic reaction system, an electrostatic precipitation, plasma ions, and ultraviolet rays to configure a high performance clean system.

Second, the circulating air flow by the intake and exhaust air can be increased compared to the existing full fan single type to form indoor circulation airflow, and the number of times of passage of the total indoor air volume by the intake and exhaust of the air cleaning system is increased to shorten the time for removing harmful substances. can do.

Third, as the intake fan and the exhaust fan operate at the same time, saturation or overheating during the rainy season, the decrease in ventilation volume, the noise generation is alleviated, and the load fluctuation is not large, so that the power consumption is constant and the fans are not overwhelmed. There is no advantage.

Fourth, turbulence is formed in the positive pressure chamber formed in front of the filter by the push fan, and suspended fungi (bacteria, fungi, viruses, etc.) and gaseous substances (odors, VOCs, etc.) in the positive pressure chamber are electrostatic precipitating, plasma ions, ultraviolet rays, and ozone sterilization. Exhaust gas, etc.) By removing the particulate matter and gaseous substances from the air flow by their own weight, the residence time in the positive pressure chamber is longer than the ventilation air, so that the probability of contact with the removal device and the residence time are longer. The removal performance of gaseous substances is improved.

Fifth, the provision of the vaporization humidification means in the exhaust portion provides an effect of maintaining a comfortable humidity of RH 55 ~ 65% obtained by the vaporization humidification in the clean air.

1 is a basic configuration of the present invention
Figure 2 is another embodiment of the present invention applying the airborne fungi and gas phase material removal apparatus
Figure 3 is another embodiment of the present invention applying the vaporizing humidification means

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 shows the basic configuration of the present invention, the push fan and full fan mixed air cleaning system according to the present invention, the inlet 11 and the exhaust port 12 is provided with an air passage 13 between the intake and exhaust vents A casing 10, a series of air filter combinations, and a filter 20 installed on the air passage 13 of the casing, a push fan 30 installed on an inlet side of the filter front, and Characterized in that it comprises a pull fan 40 installed on the filter rear air passage.

The casing 10 may have a structure in which an inlet and an exhaust port are formed on the front or both sides thereof so as to maintain a proper air passage therein, and may have a box shape or a cylindrical shape such as a front inlet and both side exhaust ports or an upper exhaust port. It may be configured in various shapes according to the design needs.

In the illustrated embodiment, the casing has a rectangular shape, and an inlet 11 for suctioning external air is formed on one side of the rectangular casing 10, and an exhaust port 12 is formed on the other side of the casing 10. Illustrated structure has a straight air passage 13 is formed in which the air sucked through the inlet port is discharged to the exhaust port via the internal air passage.

The filter 20 is composed of a plurality of air filters combined for each function. Configuration of the filter The air filter may be composed of any one or more filters such as the pre-filter 21, the neutral performance filter 22, the high performance filter 23, and also constitutes a special purpose filter such as an ozone filter, a catalyst filter, and a carbon filter. It can be included as an element, each air filter is configured interchangeably through the opening and closing 14 formed in the casing.

In addition, each filter can be applied to the filter, such as enzyme coating, silver nano-coating and the like after the antibacterial treatment process for both antibacterial performance.

In addition, the prefilter 21 may be separated from the filter and installed in front of the push fan 30 installed at the inlet port side so as to filter out large dusts.

Push fan 30 is a fan having a wing structure to apply the wind pressure is installed on the inlet 11 side, and has a function of applying positive pressure to the front of the filter 20 by sucking the outside air through the inlet.

The full fan 40 is installed at the rear of the strainer, and applies suction pressure to the strainer to form a flow of air flowing through the strainer, and has a directivity to act to collect particulate matter by the strainer.

The push fan and the pull fan act to apply a positive pressure to the suction side based on the filter, and to apply a negative pressure to the discharge side. Therefore, the pressure loss due to the passage of the filter is reduced by the positive pressure of the push pan or the negative pressure of the full fan, and the trapping by the air filter by the air flow, that is, the inertia, is maintained by maintaining the filter passage air flow at a certain level or more. Enhance collection performance by actively inducing capture by inertia and capture by interception.

In addition, the simultaneous operation of the push fan and the full fan prevents overload and maintains the amount of air passing through the air cleaning system more than a certain level provides an effect of removing the harmful substances introduced into the room more quickly.

In addition, it is possible to apply a high-performance filter to increase the fan load, to build a high-performance air cleaning system by reducing the installation load of the processing device required for sterilization or reactive decomposition of gaseous substances, and increase the noise and power consumption according to the load Can be solved.

FIG. 2 shows another embodiment of the present invention, in which a positive pressure chamber 50 is formed on the air passage 13 between the push fan 30 and the filter 20, and the positive pressure chamber 50 contains suspended fungi and gaseous substances. The present invention provides a push fan and a full fan mixed type air cleaning system, characterized in that the reaction treatment device 60 is formed to purify.

The positive pressure chamber 50 flows toward the filter unit while maintaining a positive pressure state by pressurization of the push pan, and delays external air introduced in a turbulent state without direction for a predetermined time to perform a contact reaction by the reaction treatment device 60. It increases the purification efficiency by increasing.

The reaction treatment device 60 is a catalytic treatment device for decomposing gaseous substances, plasma ions, electrostatic precipitating, ultraviolet lamps, ozone sterilizers such as bacteria, bacteria, viruses, etc. and sterilizing functions such as exhaust gas, odor, tobacco smoke Any one or several means of decomposing and removing a substance can be applied in combination.

These reaction treatment devices have a higher sterilization or decomposition degree as the contact time with suspended fungi or gaseous substances increases. According to the present invention, by installing these reaction apparatuses in the positive pressure chamber, the residence time is increased and the removal efficiency is also increased as compared with the case where the reaction air is formed by the conventional single fan.

3 shows a vaporization humidification chamber 70 on an air passage 13 between the full fan 30 and the exhaust port 12 as another embodiment of the present invention, wherein the vaporization humidification means 80 is provided. We propose a push and full fan hybrid air cleaning system that provides installed humidification and clean air.

The vaporization humidification means 80 may be implemented in a variety of structures in which vaporization humidification is performed by airflow, such as a humidifying cloth or vaporization kit containing water, as known in the art.

The illustrated vaporization humidification means 80 absorbs the water in the water supply container through contact with the water supply container 81 configured to discharge the internal water by the wick 811 and the wick 811 of the water supply container 81. The principle that the humidification is carried out by passing through the purified air in the previous step in the vaporized kit in contact with the wick, including the vaporization kit 82 configured to.

The present invention is humidified by the vaporization humidification means 80 in the final discharge step of the purified air, the vaporization humidification to improve the comfort of the air by maintaining the exhaust air in an optimal state of 55 ~ 65% relative humidity At the last stage, it filters out fine dust and prevents secondary diffusion due to air filter contamination.

10. Casing
11.Intake vent 12.Exhaust vent
13.air passages
20.Filter
21.Prefilter 22.Medium Performance Filter
23. High performance filter
30.Push Pan
40.Full Pan
50.positive pressure chamber
60. Reaction Treatment Equipment
70. Vaporization Humidification Room
80. Vaporization and humidification means
81.Water container 811.Wick
82. Vaporization and humidification means

Claims

A casing having an air inlet and an exhaust port and having an air passage therebetween; A filter consisting of a series of air filter combinations and installed on an air passage of the casing; A push fan installed at an intake port in front of the filter; And a full fan installed on the rear air passage of the filter, so that external air intake by the push fan and external air discharge by the pull fan are simultaneously performed in the casing.

The method according to claim 1,
A positive-pressure chamber is formed on the air passage between the push pan and the filter, and the positive-pressure chamber is formed with a reaction treatment apparatus for purifying suspended fungi and gaseous substances.

The method according to claim 1 or 2,
A push fan and a full fan mixed air cleaning system, characterized in that a vaporization humidification chamber is formed on an air passage between a full fan and an exhaust port, and a vaporization humidification means is installed therein to provide humidified clean air.