JPH0733092Y2 - Circulating heater - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) This invention is a fan heater, F, which sucks indoor air into the chamber to heat it and blows the heated air into the room to heat the room.
The present invention relates to a circulation type heater such as an F heater, and particularly to a circulation type heater having an air cleaning mechanism.

(Prior Art) As a method for cleaning fine air by removing fine particles and odors in the air, for example, a pair of plate-like electrodes and needle-like electrodes or wires inserted between the plate-like electrodes. -And-electrodes are applied with a high voltage of + and-to charge particles in the air and the charged particles are adsorbed to the plate electrode by electrostatic force. There is a filtration method that collects particles and odors in the air by a double filter that laminates the activated carbon filter and the non-woven filter that are formed in, and a cleaning method that combines the electric dust collection method and the filtration method. .

(Problems to be solved by the invention) In the case of the above-mentioned electrostatic precipitator, the size of the adsorbable particles is limited and the deodorizing effect is insufficient, and ozone is generated by applying a high voltage. There is a problem that ozone odor is generated, and in the case of the filtration method, it is possible to exert a deodorizing effect with an activated carbon filter, but a large suction force is required to suck air and pass it through the filter. In addition, there is a problem that the pressure loss when passing air is significantly increased, and when the electric dust collecting method and the filtration method are combined, in addition to the increase of the pressure loss, the mechanism becomes complicated. Therefore, there is a problem that the cost becomes high.

The present invention aims to solve the above problems.

(Means for Solving the Problems) The circulation type heater of the present invention has a planar base formed on the rear side of the body of the circulation type heater by an activated carbon fiber sheet containing activated carbon fibers. And a corrugated bent portion are bonded to each other to have a honeycomb structure in which a honeycomb substrate is laminated in multiple layers, and a large number of air channels arranged in the longitudinal and lateral directions are arranged along the front-rear direction using the activated carbon fiber sheet as partition walls. The formed porous filter and a high-voltage electrode for forming charged electric field in the electric field by applying a high voltage to the electric field caused by electrostatic force, and a suction port opened on the rear side of the container. And has a configuration in which they are arranged side by side.

(Function) When the air in the room is made to flow into the body of the circulation type heater, the air flowing into the suction port is circulated in the electric field formed by the high voltage electrode to which a high voltage is applied, and particles in the air are removed. While being charged and collecting the charged particles by electrostatic force, a large number of air flow paths are formed by the activated carbon fiber sheet as partition walls, and the air is circulated in the porous filter having a honeycomb structure to generate electrostatic force. Fine particles smaller than the collected particles are collected by activated carbon adsorption.

(Effects of the Invention) Since the present invention is configured as described above, before inhaling indoor air into the body, particles such as smoke and particles such as odors in the air are accurately collected by the high-voltage electrode and the porous filter. Then, it can be removed from the air, and the mechanism for cleaning the air can be simplified to enhance the air cleaning effect.

In addition, since the porous filter has a large number of air flow paths formed by its honeycomb structure, it reduces the passage resistance when air passes through the porous filter, greatly reducing the pressure loss of the intake pressure. Therefore, a large amount of air can be sucked into the body by a small intake pressure, and the fan mechanism for sucking the air into the body can be simplified and compacted to reduce the cost of the fan mechanism.

Further, the total contact area of the air contacting the partition walls of the air flow passage when the air passes through each air flow passage of the porous filter can be significantly increased by the honeycomb structure of the porous filter, and the fine particles in the air are adsorbed on the activated carbon. It is possible to greatly improve the collection performance of collecting by
Ozone generated by the high-voltage electrode can be effectively collected by the porous filter to prevent the generation of ozone odor.

(Embodiment) Next, an embodiment of the present invention will be described with reference to the drawings.

In a circulation type heater D that sucks indoor air into the chamber to heat it and blows the heated air into the chamber, a vertically long box-shaped container body is placed on a base plate 1 placed on the floor of the room. 2 is installed, and a suction port 3 for inflowing indoor air into the body 2 is opened in the vicinity of the upper part of the rear side surface 2a of the body 2, while the lower end of the front surface of the body 2 is opened. Air around the section 2
An outlet 4 for opening the inside is opened.

Air near the lower end of the body 2 is supplied with air through the suction port 3.
A fan 5 driven to rotate by an electric motor (not shown) for sucking in, flowing in the body 2 and blowing out from the air outlet 4 is installed facing the air outlet 4 and The air flow passage 7 defined by the partition walls 6 to 6 for guiding the air flowing in the body 2 has the suction port 3
A burner 8 for heating the air formed in the air flow passage 7 in the vicinity of the central portion of the body 2 in the vicinity of the central portion of the vessel 2 by the combustion of fuel during the flow.
Is installed.

On the rear side of the body 2, a suction port 3 is covered to cover a porous filter 9 for collecting fine particles in the air having a size of about 0.01 μm or less by activated carbon adsorption, and an electric field on which electrostatic force acts is high voltage. The high-voltage electrode 10 for collecting particles in the air having a size of about 0.01 to 1000 μm by electrostatic force and the coarse particles in the air having a size of about 1000 μm or more by a mesh. The pre-filter 11 for collecting is arranged in parallel from the front so as to face the suction port 3, and the porous filter 9, the high-voltage electrode 10 and the pre-filter 11 are the rear side surface of the body 2.
It is attached to the rear side of the body 2 via a holder 19 attached to 2a.

The porous filter 9 is formed by a paper-like activated carbon fiber sheet 18 containing activated carbon fibers which are fibrous activated carbons made of cellulosic fibers as a raw material, and as shown in FIG.
The honeycomb structure 17 has a honeycomb structure in which multiple layers of a honeycomb substrate 17 in which a flat base portion 17a formed of an activated carbon fiber sheet 18 and a corrugated bent portion 17b are adhered are laminated. In the porous filter 9, a large number of air flow passages 12 which are partitioned and formed by using the activated carbon fiber sheet 18 as a partition and are arranged in the vertical and horizontal directions.
12 are formed in parallel to allow air to flow from the rear side to the front side of the porous filter 9. This porous filter 9
Has a deodorizing performance of adsorbing and removing fine particles of about 0.01 μm or less floating in the air, such as indoor odors, pet odors, ozone odors, NO ₂ etc., and gas molecules from the air. Conductivity is imparted to the porous filter 9 by activated carbon fibers. The porous filter 9 is connected to the negative electrode of a high-voltage power source (not shown) connected to the high-voltage electrode 10, and when the high voltage is applied, the entire porous filter 9 serves as one electrode.

The electrode case 13 of the high-voltage electrode 10 includes a pair of left and right side plates 13a, 13a which are upright at the left and right ends thereof, and a plurality of lateral plates which are arranged at equal intervals in the vertical direction. The electrode plates 13b to 13b are integrally assembled with each other to form a box shape with shelves open to the front and rear, and insulating plates 14 to 14 are formed on both side plates 13a so as to be vertically spaced apart from each other. ing. The electrode case 13 is formed of a metal material excluding each insulating portion 13, and the electrode case 13 is connected to the negative electrode of the high voltage power source and serves as the negative electrode of the high voltage electrode 10.

Between the both side plates 13a of the electrode case 13, a plurality of discharge wires 15 to 15 each formed of a thin metal wire or the like are horizontally stretched. Each discharge line 15 is inserted so as to cross each air passage 16 with respect to the central portion of each air passage 16 to 16 formed between each electrode plate 13b, and one end of each discharge line 15 is one side plate. Each of the discharge wires 15 is connected to the insulating portion 14 of 13a, and the other end of each discharge wire 15 is inserted into the insulating portion 14 of the other side plate 13a and connected to the positive electrode of the high-voltage power supply.
Are the positive electrodes of the high voltage electrode 10, respectively.

When a high voltage is applied to the electrode case 13, the discharge wire 15, and the porous filter 9 of the high-voltage electrode 10, an electric field is formed in the porous filter 9 and the high-voltage electrode 10 so that particles in the air flow in the air flow path 16. During the course of flow, it is charged with + charges, and the particles charged with + charges are adsorbed to each electrode plate 13b of the electrode case 13 and the activated carbon fiber sheet 18 of the porous filter 9 serving as a-electrode by electrostatic force, and by electrostatic force. Adsorbable particles having a size of 0.01 μm to 1000 μm, such as cigarette smoke, dust, pollen, oil smoke, etc., are collected by the high-voltage electrode 10 and the porous filter 9. However, the electrode case 13 and the porous filter 9 may be used as + electrodes, and the respective discharge lines 15 may be used as − electrodes.

The pre-filter 11 is formed by a filter cloth having a mesh structure which is woven and knitted with synthetic fiber yarns, etc., and the air flowing into the suction port 3 before the air flows into the air passage 16 of the electrode case 13. Coarse particles such as dust, cotton dust, and sand that flow between the meshes and float in the air are collected by the meshes of the prefilter 11.

Next, the operation and effect of the embodiment having the above-mentioned configuration will be described.

In this example, on the rear side of the body 2 of the circulation type heater D, a flat base portion 17a and a corrugated bent portion 17b each formed by an activated carbon fiber sheet 18 containing activated carbon fibers are adhered. A plurality of air passages 12 are arranged in the vertical and horizontal directions and have a honeycomb structure in which honeycomb base bodies 17 are laminated in multiple layers.
Is a porous filter 9 formed along the front-rear direction by using the activated carbon fiber sheet 18 as a partition wall, and a high-voltage electrode that collects charged particles in the electric field by forming a high voltage electric field by applying a high voltage. 10 and 10 are arranged side by side so as to face the suction port 3 opened on the rear side surface of the body 2.

Therefore, before sucking the air in the room into the body 2, coarse particles such as dust, particles such as smoke, and fine particles such as odor in the air are filtered by the prefilter 11, the high-voltage electrode 10, and the porous filter 9. The particles can be accurately collected in order, and the suspended particles in the air at each stage can be effectively collected, and the mechanism for cleaning the air can be simplified to enhance the air cleaning effect.

Further, since the porous filter 9 has both a function of collecting fine particles in the air by adsorption of activated carbon and a function of collecting particles in the air by electrostatic force, it has an effect of removing suspended particles in the air. The ozone odor can be increased, and even if ozone is generated in the high-voltage electrode 10 by applying a high voltage, the ozone odor can be adsorbed by the porous filter 9 and removed.

In particular, since a large number of air passages 12 are formed in the porous filter 9, the passage resistance when air passes through the porous filter 9 is remarkably reduced as compared with a felt filter, and the intake pressure is reduced. The loss can be significantly reduced.
Therefore, a large amount of air can be sucked into the body 2 with a small intake pressure, so that the fan mechanism for sucking the air into the body 2 can be simplified and compacted to reduce the cost.

Furthermore, the total contact area of air in contact with the partition walls of the air flow passage 12 when the air passes through each air flow passage 12 of the porous filter 9 can be greatly increased by the honeycomb structure of the porous filter 9. It is possible to significantly improve the collection performance of collecting fine particles by adsorption of activated carbon, and it is possible to effectively collect ozone generated by the high-voltage electrode 10 by the porous filter 9 and prevent generation of ozone odor.

[Brief description of drawings]

The drawings show an embodiment of the present invention. Fig. 1 is a perspective view of a circulation type heater in which an air cleaning mechanism is disassembled, Fig. 2 is a vertical cross-sectional view of the circulation type heater, and Fig. 3 is shown. Is a vertical sectional view of the main part,
FIG. 4 is an enlarged perspective view of a part of the porous filter, and FIG. 5 is an enlarged perspective view of a part of the high voltage electrode. 2 ... Vessel 3 ... Suction port 9 ... Porous filter 10 ... High-voltage electrode D ... Circulation type heater

Claims (1)

[Scope of utility model registration request] 1. A honeycomb in which a flat base portion and a corrugated bent portion which are respectively formed by an activated carbon fiber sheet containing activated carbon fibers are bonded to the rear side of a body of a circulation type heater. It has a honeycomb structure in which bases are laminated in multiple layers, and a large number of air channels arranged in the longitudinal and lateral directions are formed along the front-back direction with activated carbon fiber sheets as partition walls, and an electric field that causes electrostatic force. And a high-voltage electrode that collects particles charged in the electric field by applying a high voltage, and is arranged in parallel so as to face a suction opening opened on the rear side surface of the container. Type heater.