JP3079773U - Electric dust collector - Google Patents

Abstract

(57) [Problem] To provide a small electric dust collector capable of efficiently removing dust such as dust, smoke, oily smoke and the like floating in gas. SOLUTION: A plurality of electrode members each including a pair of a charging electrode portion 2A and a dust collecting electrode portion 3A are arranged in series in a duct for sucking contaminated air, and each electrode member is supplied with a different power source 4 from a different power source. An electric precipitator characterized by being configured to conduct electricity.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to an electric precipitator, and more particularly to a small electric precipitator capable of efficiently removing dust such as dust, smoke, oily smoke and the like floating in a gas.

[0002]

[Prior art]

 BACKGROUND ART Conventionally, an electric dust collector has been well known as a device for removing dust, smoke, and the like floating in a gas. An example of such an electrostatic precipitator will be described with reference to FIG. 5. FIG. 5 is a schematic structural explanatory view of the electric precipitator. This device charges dust floating in the air by corona discharge. A charging electrode unit 20, a dust collecting electrode unit 21 for adsorbing and removing charged dust, a gas supply device 22 for supplying gas to each of the electrodes, a case 23 for accommodating each of the devices, and a case 23 formed in the case. And a power supply device (not shown). In this electrostatic precipitator, contaminated air is flowed into the electric precipitator by appropriate means, and dust existing in the contaminated air is charged by the charging electrode unit 20 and then adsorbed by the dust collecting electrode unit 21 in the subsequent stage. As a result, minute dust can be collected efficiently and is widely used.

However, when examining the above-mentioned electric precipitator, the following problems have become apparent. That is, if water droplets are mixed in the contaminated air to be sucked, the water droplets adhere to the electrodes of the charging electrode portion 20 or the dust collecting electrode portion 21 to cause a short circuit, and the electric dust collector is stopped for a short time ( However, it recovers in a relatively short time after a short circuit). And even if the electric precipitator is stopped for a short time, polluted air passes through the electric precipitator and is released outside during the stop, causing environmental pollution.

[0004]

[Problems to be solved by the invention]

 Therefore, in order to solve the above-mentioned problems, the present invention arranges a plurality of sets of electrode members each having a set of a charged electrode portion and a dust collection electrode portion in a duct, and arranges each of the electrode members. Provide an electric precipitator that is configured so that electricity is supplied to the members from different power sources, and that even if one set is short-circuited and the dust collection function is stopped, the contaminants can be adsorbed by the other operating sets. The purpose is to.

[0005]

[Means for Solving the Problems]

 The technical solution adopted by the present invention is to arrange a plurality of electrode members, each of which includes a charging electrode unit and a dust collection electrode unit, in series in a duct for sucking contaminated air. An electric precipitator characterized by being configured to conduct electricity from different power sources. Further, the electric dust collector is characterized in that the charging electrode part and the dust collecting electrode part are made of stainless steel.

[0006]

Embodiment

 Hereinafter, preferred embodiments of the present invention will be described. FIG. 1 is a perspective view schematically showing the configuration of an electric precipitator according to an embodiment of the present invention without a cover for an electrode member insertion opening. FIG. 2 is a plan view and a side view of the electric precipitator of FIG. FIG. 3 is a perspective view of the charged electrode portion and the dust collecting electrode portion, and FIG. 4 is a configuration diagram of the charged electrode and the dust collecting electrode. The electrostatic precipitator 1A according to the present invention, as shown in FIGS. 1 to 3, includes a plurality of sets of a charging electrode 2A and an electrode member paired with the collecting electrode 3A in series in a duct 4A. (Two sets in this example) are arranged and configured.

In FIG. 3 and FIG. 4, a charged electrode portion 2 A constituting an electrode member is formed by alternately disposing a high voltage electrode 2 made of a screw rod or a thin wire and a low voltage electrode 3 made of a plate-like body alternately. A high- and low-voltage electrode group connected in parallel with the same type of electrodes, with the terminals of the high-voltage electrodes connected to the power supply and the ends of the low-voltage electrodes arranged on the outermost side 5 is connected to a low voltage electrode which is also used. The high-voltage electrode is not limited to a screw rod or a wire, but may be a rod having a large number of protrusions formed on the surface.

On the other hand, the dust collecting electrode section 3A is composed of a large number of opposing plate-like electrode groups in which high-voltage electrodes 7 and low-voltage electrodes 8 are arranged alternately and in parallel. Only the same poles are electrically connected in parallel to each other, and the terminals of the high-voltage electrode group are configured to be connected to the power supply 4 via connection means 9 as appropriate within the charged electrode section. The terminal of the low-voltage electrode is connected to the low-voltage electrode that is also used as the outermost case. In the figure, 5 is a case, 13 is an insulator for supporting an electrode plate, and 16 is a power supply line.

As shown in FIGS. 1 and 2, a set of the charging electrode 2A and the dust collecting electrode 3A having the above-described configuration are housed in a case, connected to a power supply (transformer) 4, and charged by the charging electrode 2A. Smoke and mist can be absorbed and collected by the dust collecting electrode 3A. Then, the power source is made different for each of a plurality of sets arranged in series. The charging electrode 2A and the dust collecting electrode 3A are desirably made of stainless steel for easy cleaning.

In the present invention, contamination is achieved by arranging a plurality of sets of electrode members each including a charging electrode portion 2A and a dust collecting electrode portion 3A connected to different power sources in a duct as described above. Even if water droplets enter the air and there is a short period of time when power is not supplied to the electrodes due to this, the action of other electrodes can completely remove smoke and mist from the contaminated air. That is, as described above, by making the power supply different for each set of electrode members, even if water droplets are adsorbed to the first set and short-circuited and the dust collection function cannot be performed for a short time, The next stage charge electrode and dust collection electrode can collect smoke and mist that have passed through the first set. In this way, by arranging a plurality of electrode members, each of which consists of a charged electrode and a dust collection electrode, in series, and using a different power supply for each set, the dust collection function is temporarily stopped in one of the sets. Even so, the dust collection function is working in other groups, and the dust collection efficiency can be dramatically increased. If the electrodes of each group are common, if a short circuit occurs in any group, the dust collection function of all the electrodes will stop, and at this stop, the smoke will flow downstream as it is and be exhausted. Problem occurs. The present device can solve such a problem. The connection between the charging electrode and the dust collecting electrode and the positive and negative electrodes of the power supply can be appropriately selected according to the function of the range hood.

Although the present invention has been described above, the configuration of the charging electrode and the dust collecting electrode is not limited to the above-described configuration, and any of the currently used electrode structures can be used. Also, the present invention may be embodied in various other forms without departing from the spirit or main characteristics of the present invention, and thus the above-described embodiments are merely illustrative in all respects and are not limiting. Should not be interpreted.

[0012]

[Effect of the invention]

 As described in detail above, according to the present invention, a plurality of electric precipitators, each having a set of a charging electrode and a precipitating electrode, are arranged in series in a duct, and the power source is different for each set. Therefore, even if moisture passes through the electrode and contaminates the air, the contaminants can be reliably removed by either set, and the air purification efficiency is dramatically improved. Can be achieved.

[Brief description of the drawings]

FIG. 1 is a perspective view of an electric precipitator according to the present invention.

FIG. 2 is a plan view and a side view of the electric dust collector.

FIG. 3 is a perspective view of a charging electrode unit and a dust collecting electrode unit housed in the electric dust collector.

FIG. 4 is a configuration diagram of a set of electric precipitators.

FIG. 5 is a configuration diagram of a conventional electric precipitator.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1A Electric dust collector 2A Charging electrode part 3A Dust collecting electrode part 2 High voltage electrode 3 Low voltage electrode 4 Power supply 5 Case 7 High voltage electrode 8 Low voltage electrode 16 Power supply line

Claims (2)

[Utility model registration claims] A plurality of electrode members each having a pair of a charging electrode portion and a dust collecting electrode portion are arranged in series in a duct for sucking contaminated air, and each of the electrode members receives electricity from a different power source. An electrostatic precipitator characterized by being configured to be energized. 2. An electrostatic precipitator according to claim 1, wherein said charging electrode portion and said dust collecting electrode portion are made of stainless steel.