JP3753594B2 - Deodorization device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a deodorizing apparatus that performs concentration processing and decomposition processing of malodorous substances.
[0002]
[Prior art]
As a processing apparatus for concentrating and decomposing odors such as organic solvents, there is a odor substance concentration processing apparatus described in Japanese Patent Laid-Open No. 10-244125, for example. This treatment apparatus uses activated carbon, zeolite, or the like as a bad odor adsorbent, and also causes odors to desorb from the adsorbent and regenerate by acting high temperature air on the bad odor (solvent, etc.) adsorbed on the adsorbent. The mechanism is such that the detached odor is heated to a high temperature and decomposed with a platinum catalyst.
[0003]
[Problems to be solved by the invention]
However, the above-described treatment apparatus oxidizes the odor released from the adsorbent by simply passing the platinum catalyst layer provided on the deodorizing gas exhaust part side of the rotor containing the adsorbent, by the platinum catalyst layer. While deodorizing, it enables downsizing of the entire device, while there is no need to burn it with a combustion device in which concentrated malodorous substances are placed separately as in the prior art. Although provided, there was a problem that the decomposition efficiency when the detached odor was decomposed was poor and a sufficient deodorizing effect could not be obtained.
[0004]
Therefore, the technical problem of the present invention has a function of adsorbing and condensing malodors on the adsorbent, and a function of removing odors from the adsorbent by causing high-temperature air to act on the adsorbent that has adsorbed the malodors. In the deodorizing apparatus, the deodorized effect is effectively decomposed to enhance the deodorizing effect.
[0005]
[Means for Solving the Problems]
(1) In order to solve the above technical problem, according to the present invention, as described in the first aspect of the present invention, a gas to be processed and a heated air pass area are provided, and an adsorbent is accommodated therein. A deodorizing apparatus configured to continuously repeat the adsorption of odors to the adsorbent and the removal of odors by heated air by rotating the adsorption rotor about the axis,
The inside of the case body, which is formed in a thin box shape as a whole on the flow passage that follows the passage area of the heated air, is partitioned by a partition plate into an odor gas introduction chamber and a processing gas discharge chamber, and the inside of the partition plate is particulate. A plurality of insulating tubes filled with the catalyst material are attached in a line with the lower end opening to the odor gas introduction chamber and the upper end opening to the processing gas discharge chamber, and the side surface of the case body The odor decomposition unit configured to be able to apply a plasma power source between the inner and outer electrodes by providing connection terminals that are electrically connected to the electrodes provided at the outer and inner centers of the insulating pipes. is characterized in that a plasma catalyst chamber plurality juxtaposed structures therein in parallel for.
[0006]
According to the above means, since the odor once heated and removed from the adsorbent is introduced into the odor decomposition unit that performs plasma discharge to decompose the odor, discharge decomposition can be performed at a high temperature and more effective decomposition. together makes it possible to perform processing, the odor decomposition unit, the insulating tube can relatively formed thin and in units of those arranged in a row, can be juxtaposed to overlap the required number next to this Rutotomoni, each electrode By connecting to the wiring, it is possible to construct a plasma catalyst portion having a required capacity in the plasma catalyst chamber relatively easily and at low cost.
[0007]
( 2 ) Further, in the present invention, as described in the second aspect of the present invention, a plurality of connection ports that lead to the odor gas introduction chamber and the processing gas discharge chamber are opened on both side surfaces of the case body constituting the odor decomposition unit . Each odor gas introduction chamber and each processing gas discharge chamber of the odor decomposition unit arranged side by side on the flow path following the passage area of the heated air by arranging the odor decomposition units side by side so that adjacent connection ports fit together the communication is formed in each lateral direction, and the plasma catalyst chamber consisting of an insulating tube of the lower end opening and the multiplicity of the respective upper openings of the respective opening in each odorous gas introduction chamber and the processing gas exhaust chamber communicating thereto such It is characterized by the construction .
[0008]
According to the above means, a plurality of odor decomposition units can be efficiently processed at the same time by simply arranging a plurality of odor decomposition units while fitting the respective connection ports. It can be expanded in any way according to the flow rate, and this can be reduced.
[0009]
( 3 ) Further, according to the present invention, as described in the third aspect of the present invention, a spiral spring for preventing the catalyst material from dropping and jumping out is attached inside the upper and lower portions of the insulating tube filled with the catalyst material. The spiral spring is provided with a pick for taking out .
[0010]
According to the above means, when exchanging the catalyst in the insulating tube, after taking out the odor decomposition unit, picking up, taking out the upper spiral spring and turning the insulating tube upside down, the catalyst inside can be easily It can be taken out and can be easily filled with the catalyst. The elastic force and air permeability of the spiral spring ensures that the filled catalyst is retained without affecting the air flow. Enable.
[0011]
( 4 ) Further, in the present invention, as described in claim 4 , the air flow decomposed in the plasma catalyst chamber is discharged to the outside of the container through a heat exchanger, and the air sucked from the outside of the container is After the heat exchange through the above heat exchanger, the heat exchanger is heated by a heater and sent to the passage area of the heated air of the adsorption rotor .
[0012]
According to the above means, it is possible to reduce the heater power by utilizing the amount of heat generated by the decomposition of the odor by the plasma catalyst unit for air heating for odor removal by heat exchange.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of a deodorizing apparatus according to the present invention will be described below in detail with reference to the drawings. FIG. 1 is a front sectional view illustrating the entire configuration of the present invention, and FIG. 2 is a side sectional view of a main part of the present invention. The body of the deodorizing apparatus generally indicated by reference numeral 1 in the drawing is partitioned into the suction part 1X, the deodorization part 1Y and the exhaust part 1Z in order from the bottom by the partition plates 6 and 8, and the suction part 1X Is partitioned by a partition plate 4 into a suction chamber 4A having a primary suction port 2 and an air filter 3, and a secondary fan chamber 4B having a secondary fan 15F and a fan motor 15M. .
[0014]
Reference numeral 5 denotes a honeycomb type adsorption rotor provided in the deodorizing chamber 7 in the deodorizing section 1Y. The adsorption rotor 5 containing an adsorbent (not shown) such as activated carbon or hydrophobic zeolite is accommodated in the deodorizing chamber 7 by a motor 5M. 1, the region on the right side in FIG. 1 is the primary air that enters the suction chamber 4A while being filtered by the air filter 3 from the primary suction port 2, that is, The gas to be treated (odor gas) is a passage area 5A, and the area on the left side is sucked by the secondary fan 15F to the fan case 15 side through the ducts 13A and 13B while being heated by the heater 14. The heated air passing area 5B, and the deodorizer alternately and repeatedly passes through these two passing areas 5A and 5B as the adsorption rotor 5 rotates.
[0015]
9 is a fan chamber provided in the exhaust section 1Z, 9F is a primary fan that is rotated by a motor 9M, and 10 is a primary exhaust port, which is sucked from the primary suction port 2 by the rotation of the primary fan 9F. After the coarse gas is collected by the air filter 3, the treated gas is deodorized by adsorbing odor from the suction chamber 4A through the treated gas passage area 5A of the adsorption rotor 5 to the adsorbent. However, the deodorizing chamber 7 passes through the fan chamber 9 and is exhausted from the primary exhaust port 10 to the outside.
[0016]
Further, in the figure, 11 is a secondary air inlet opening at the top of the deodorizing chamber 7, 12 is a heat exchanger provided in the deodorizing chamber 7, 13 is connected to the heat exchanger 12 at one end, Secondary air sucked from the secondary air inlet 11 by rotation of the secondary fan 15F in the fan case 15 provided in the secondary fan chamber 4B, the end of which is connected to the duct 13A. The (outside air) is subjected to heat exchange through the heat exchanger 12 configured to use heat generated by the plasma catalyst unit, which will be described later, for heating the suction side air (the exchange rate is about 50%), and then the heater chamber. 13 is heated to a high temperature of about 300 ° C. by the heaters 14 in the heater 13, and then passes through the duct 13 </ b> A to enter the heating air passage area 5 </ b> B of the adsorption rotor 5 to heat the adsorbent that has adsorbed the concentrated malodorous substance. Stink by It has a mechanism to disengage the quality.
[0017]
In addition, the air flow containing the concentrated malodorous substance separated from the adsorbent is subjected to the suction action of the secondary fan 15F and decomposes the malodorous substance from the duct 13B through the fan case 15 and the duct 16. 17, the malodorous substances are decomposed and removed by a plurality of odor decomposition units 18 provided therein, and then discharged through the heat exchanger 12 to the outside air from the secondary exhaust port 30 (see FIG. 2). However, the structure of the plasma catalyst chamber 17 will be described based on the description of FIG. 2 and FIGS. 3 to 6 described above.
[0018]
FIG. 3 is a partial cross-sectional front view illustrating the internal structure of the plasma catalyst chamber 17. The inside of the plasma catalyst chamber 17 is connected to the above-described tip end 16 </ b> A of the duct 16 by the partition plates 17 </ b> A and 17 </ b> B on both sides. The lower chamber 17C and the upper chamber 17D are partitioned, and the exhaust port 17F side leading to the upper chamber 17D is connected to each pipe 12A of the heat exchanger 12 described above via the duct 27 as shown in FIG. To the secondary exhaust port 30 described above via the ducts 28 and 29.
[0019]
4, 5, and 6 are a partial cross-sectional side view and a diagram of an odor decomposition unit 18 that is arranged in parallel in the plasma catalyst chamber 17 so as to be parallel to the air flow. 4 is a cross-sectional view taken along lines XX and YY, and each odor decomposition unit 18 is configured to be detachable from the plasma catalyst chamber 17, and the whole is a thin box. The inside of the case body 18S formed in a shape is partitioned by a partition plate 18X into an odor gas introduction chamber 18 ′ that communicates with the lower chamber 17C and a processing gas discharge chamber 18 ″ that communicates with the upper chamber 17D. On both sides of each of the chambers 18 'and 18 ", adjacent connection ports 18A, 18A' which can be fitted to each other so that adjacent odor decomposition units 18, 18 ... can be arranged in parallel with each other. Connection port 18B, 18B for insertion There are openings formed.
[0020]
Further, 18E and 18F are in the odor decomposition unit 18 ... flat plate and the fitting frame for connections respectively formed on both side surfaces of which are more parallel, showing the adjacent odor cracking unit 18 ... each flat plate 18E of Figure 3 Squeezing fitted to the fitting frame 18F ... as the connection port 18A for the adjacent receiving, 'connecting port 18B for fitting within, 18B' 18A is being incorporated fitted respectively adjacent the plurality of odor cracking unit In the state where the respective odor gas introduction chambers 18 'and the processing gas discharge chambers 18 "are communicated with each other, a plurality of odor decomposition units 18 are arranged side by side in parallel. Yes.
[0021]
In addition Figure 19: the plurality of odor decomposition unit 18 ... each, respectively lower port 19S opens to the odorous gas introducing chamber 18 'to a portion of the internal partition plate 18X of that, and, above the upper opening 19T A plurality of (six in the case of the drawing) insulating pipes installed in a row in an open state in the processing gas discharge chamber 18 ″, and each of these insulating pipes 19 constituted by using quartz glass pipes or the like 4, 6, and 7, a large number of particulate catalyst materials 20, such as a platinum catalyst, are filled, and the lower part of each insulating layer 19 has a lower portion as shown in FIG. 7. A spiral spring 20A for stopper is fitted, and a spiral spring 20B for upper stopper with a take-off knob 20C connected to the upper side is fitted on the upper side to prevent the catalyst material 20 from falling off and jumping out. .
[0022]
Further, a round bar-like internal electrode 21 is inserted inside each insulation tube 19. Further, a cylindrical external electrode 25 is attached to the outer peripheral surface of the insulation tube 19. The lower end of each internal electrode 21. 22 is connected to the connection terminal 21 ′ projecting from the front surface of the odor decomposition unit 18, and each cylindrical external electrode 25 is similarly connected via a holding frame 18 </ b> Y holding the insulating tubes 19 side by side. It is connected to a connection terminal 25 'protruding from the front surface of the odor decomposition unit 18, and a power supply for performing plasma discharge can be applied between the electrodes 21 and 25 through these connection terminals 21' and 25 '. is doing.
[0023]
In the figure, reference numerals 23, 24 and 27 denote insulators, and 21A denotes a locking slit for the lower stopper spiral spring 20A provided on the lower end side of the internal electrode 21.
[0024]
More as a plurality of odor decomposition unit 18 ... a configured, according superimposed laterally plasma catalyst chamber 17 of juxtaposed structures therein, sent to the lower side chamber 17C side through the duct 16 by the secondary fan 15F is an air stream containing malodorous substances coming from the odor decomposition unit 18 ... odor gas introduction chamber 18 ', respectively is introduced into the interior of the insulating tube 19 ... provided in each odor decomposition unit 18 ... in a number the particulate catalyst material 20 ... row Ukoto respectively plasma discharge which like within each insulating tube 19 ... filled with, can degrade malodorous gases (VOC gases) passing between the catalytic material 20 ... etc. This However, since decomposition and discharge product molecules are adsorbed on the surface of the catalyst material 20 in a state excited by the discharge plasma, the decomposition treatment can be performed more effectively.
[0025]
Further, since the heat generated by the decomposition of the malodorous gas in the plasma catalyst chamber 17 is used for air heating for removing the adsorbent (zeolite etc.) of the adsorption rotor 5 in the heat exchanger 12, the heater 14 is used. Power consumption can be reduced.
[0026]
【The invention's effect】
As described above, according to the deodorizing apparatus of the present invention, the odor adsorbed by the adsorbent existing in the heated air passage area is heated and separated, and then the detached odor is applied with plasma discharge. each odor cracking unit was more juxtaposed in the interior of the plasma catalyst chamber to enable, in particular, by feeding respectively to a plurality of insulated tube filled with catalyst a as it can decompose odor, heated once high temperature Since air is introduced into each odor decomposition unit for decomposition, discharge decomposition can be performed more effectively at a high temperature, decomposition efficiency can be improved, and odor decomposition can be further promoted.
[0027]
Further, in the present invention, the plasma catalyst chamber is configured by arranging a large number of odor decomposition units in parallel, so that a large amount of gas flow can be processed at the same time. Combined with the fact that it can be reduced and the ease of maintenance by improving the exchange of the catalyst, etc., it is suitable for use as a deodorant for various malodorous substances.
[Brief description of the drawings]
FIG. 1 is a front sectional view illustrating the entire deodorizing apparatus according to the present invention.
FIG. 2 is a side sectional view of the present invention.
FIG. 3 is a partial cross-sectional front view illustrating the configuration of a plasma catalyst chamber used in the present invention.
FIG. 4 is a partial cross-sectional side view of an odor decomposition unit installed in a plasma catalyst chamber.
5 is a cross-sectional view taken along line XX of FIG.
6 is a cross-sectional view taken along line YY in FIG.
7A is a front sectional view showing an enlarged insulating tube filled with a catalyst material, FIG. 7B is a perspective view of a spiral spring for an upper stopper, and FIG. 7C is a spiral spring for a lower stopper. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Body of deodorizing device 5 Adsorption rotor 5M Motor 5A Passage area of gas to be treated 5B Passage area of heated air 12 Heat exchanger 14 Heater 17 Plasma catalyst chamber 18 Odor decomposition unit
18S case body
18X Partition plate 18 'Odor gas introduction chamber 18 "Processing gas discharge chamber 18A, 18A' Accepting connection port 18B, 18B 'Inserting connection port 19 Insulating tube 20 Particulate catalyst material 20A, 20B Spiral spring 20C 21, 25 Plasma dischargeable electrodes

Claims (4)

By rotating an adsorption rotor having a passage area for the gas to be treated and a passage area for heated air and containing an adsorbent therein, the adsorption of the odor to the adsorbent and the odor caused by the heated air A deodorizing device configured to continuously repeat the detachment of
The inside of the case body, which is formed in a thin box shape as a whole on the flow passage that follows the passage area of the heated air, is partitioned by a partition plate into an odor gas introduction chamber and a processing gas discharge chamber, and the inside of the partition plate is particulate. A plurality of insulating tubes filled with the catalyst material are attached in a line with the lower end opening to the odor gas introduction chamber and the upper end opening to the processing gas discharge chamber, and the side surface of the case body The odor decomposition unit configured to be able to apply a plasma power source between the inner and outer electrodes by providing connection terminals that are electrically connected to the electrodes provided at the outer and inner centers of the insulating pipes. deodorizing apparatus characterized in that a plasma catalyst chamber plurality juxtaposed structures therein in parallel for. On both sides of the case body constituting the odor decomposition unit, connection ports leading to the odor gas introduction chamber and the processing gas discharge chamber are opened, and a plurality of odor decomposition units are arranged side by side so that adjacent connection ports are fitted together. by the the distribution path following the passband of the heated air, arranged with the respective odorous gas introduction chamber and the processing gas discharge chamber odor cracking unit to communicate formed in each lateral direction, and each lower end opening and the upper 2. A deodorizing apparatus according to claim 1, wherein a plasma catalyst chamber comprising a plurality of odor gas introduction chambers whose end ports communicate with each other and a plurality of insulating pipes each opened to each processing gas discharge chamber. A spiral spring for preventing the catalyst material from dropping and popping out is attached to the inside of the upper and lower portions of the insulating tube filled with the catalyst material, and a take-out knob is provided on the upper spiral spring. The deodorizing apparatus according to 1 or 2. The air flow decomposed in the plasma catalyst chamber is discharged to the outside of the container through a heat exchanger, and the air sucked from the outside of the container is heat-exchanged through the heat exchanger and then heated by a heater to 3. The deodorizing apparatus according to claim 1, wherein the deodorizing apparatus is configured to send the heated air to a passing area of the adsorption rotor.

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