JP2008285217A - Activated carbon storage case, and activated carbon adsorbing tower and deodorization equipment, using the case - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an activated carbon storage case which can be carried by one person, which facilitates an activated carbon replacing operation and which can be easily installed even in a place having a restricted installation space for installing; and to provide an activated carbon adsorbing tower and deodorization equipment, using the case. <P>SOLUTION: In the activated carbon storage case 2, the upper and lower parts are opened as a passage for malodorous gas; a sidewall is composed of an air-impermeable member; and a supporting net N for the activated carbon is provided on the bottom. In this case, a fitting part for enabling the stacking of a plurality of tiers of storage cases is formed on the side wall; a seal member S for airtightly sealing an outer periphery is provided on an end surface; and the total weight in an activated carbon-stored state is set to be in the range of 5-15 kg. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to deodorization of malodorous gases by an activated carbon adsorption method, and more particularly to a case containing activated carbon, an activated carbon adsorption tower and a deodorization apparatus using the case.

2. Description of the Related Art Conventionally, an activated carbon adsorption method is known as a method for removing odorous components from malodorous gases generated at wastewater treatment plants, manure treatment plants, sewage treatment plants, and the like. As a deodorization device using the activated carbon adsorption method, for example, after exhaust gas generated in an incinerator for waste treatment is removed by a dust collector, it is passed through an adsorption tower filled with activated carbon as an adsorbent, and dioxins in the exhaust gas etc. Some harmful substances are removed by adsorption on activated carbon and then released into the atmosphere. (For example, Patent Document 1)
As shown in FIG. 12, the conventional adsorption tower (30) described above is a rectangular tube-shaped building, and the inside of the upper, middle and lower three-stage case charging zones (31) (32) (33) In each of the charging zones (31), (32), and (33), a plurality of granular activated carbon storage cases (34) are charged. And after exhaust gas is introduce | transduced in the adsorption tower (30) from the inlet provided in the lower part of the adsorption tower (30), the activated carbon layer in each case is passed through sequentially, a malodorous component is removed, adsorption tower (30 ) Is discharged from the outlet provided at the top.

  Here, since the adsorptive power of activated carbon as an adsorbent for adsorbing and removing malodorous components has a lifetime, when the adsorptive power has been reduced, it is necessary to replace it with new activated carbon.

  However, since the granular activated carbon storage case (34) in the adsorption tower (30) is large in size, when carrying it in or replacing it, the case is suspended by a hoist (35), and a roller ( 36) had to be rolled and moved on the rail (37), which was very troublesome.

  Moreover, since the said adsorption tower (30) is made into the large sized equipment used at a waste disposal site etc., the construction requires a great deal of time, labor, and cost, and the installation space is limited. It was unsuitable for use as a deodorizing device for removing malodorous gas generated from disposer systems of buildings and condominiums.

Furthermore, since the large adsorption tower (30) as described above cannot be carried and used, it is unsuitable for use as a deodorizing device used for a limited time at a construction site or a construction site.
Japanese Patent Laid-Open No. 11-165020

  Therefore, the present invention provides an activated carbon storage case and its case that can be carried by one person, can easily replace the activated carbon, and can be easily installed even in a limited installation space. It is an object to provide a used activated carbon adsorption tower and a deodorizing apparatus.

(Invention of Claim 1)
The activated carbon storage case of the present invention is an activated carbon storage case having upper and lower openings as passages for malodorous gases, side walls made of a non-breathable member, and having a support net for activated carbon at the bottom. A fitting portion is formed that enables the multi-layer stacking of the housing case, and a seal member for sealing the outer peripheral airtight state is provided on the end surface, and the total weight in the state of housing activated carbon is 5 to 15 kg. It is characterized by that.

  In such an activated carbon storage case, the total weight in the state in which the activated carbon is stored is 5 kg to 15 kg, so that it can be carried by one person and the replacement of the activated carbon can be easily performed.

(Invention of Claim 2)
The upward flow activated carbon adsorption tower according to the present invention is provided with a gas introduction path for introducing malodorous gas to be deodorized below the activated carbon storage case according to claim 1, and the deodorized gas is provided above the activated carbon storage case. A gas discharge path for discharging to the outside is provided.

  In this specification, after the malodorous gas is introduced from the gas introduction path provided below the activated carbon storage case and sequentially passed through the activated carbon layer in each case, the malodorous component is removed, and then provided above the storage case. What is discharged from the gas discharge passage is an upward flow activated carbon adsorption tower as a whole.

(Invention of Claim 3)
The upward flow activated carbon adsorption tower according to the present invention is the upward flow activated carbon adsorption tower according to claim 2, wherein a holding member of the activated carbon storage case is installed between the gas introduction path and the gas discharge path. It is characterized by that.

(Invention of Claim 4)
The deodorizing apparatus according to the present invention comprises an upward-flow activated carbon adsorption tower according to claim 3 and a dehumidifying apparatus for removing water vapor from malodorous gas.

  In this specification, what includes the above-described upward flow activated carbon adsorption tower and a dehumidifying device for removing water vapor from the malodorous gas introduced into the adsorption tower is referred to as a deodorization apparatus as a whole.

(Invention of Claim 5)
The deodorizing apparatus according to the present invention is the deodorizing apparatus according to claim 4, wherein the dehumidifying apparatus has an inverted substantially U-shaped pipe line, and the substantially U-shaped direction change area is upward. And a dehumidifying mechanism that allows malodorous gas to pass from the lower inlet end side to the outlet end side through the upper direction change area. To do.

  Such a dehumidifying mechanism has an inverted substantially U-shaped curved pipe line, and the malodorous gas passes from the lower inlet end side to the outlet end side through the upper direction change area. The water vapor in the malodorous gas comes into contact with the inner wall of the pipe and is liquefied. And since it arrange | positioned so that a substantially U-shaped direction change area may become an upper side, the water | moisture content liquefied with the inner wall of the pipe line flows down in the pipe line to the exit end side etc., for example, a lower moisture storage tank Can be stored on the ground or discarded directly into the ground or sewage.

  Here, examples of the material of the pipe line include plastic, stainless steel, and titanium. If it is made of plastic (vinyl chloride, polypropylene, etc.) or stainless steel, it exhibits corrosion resistance against odorous gases. Further, the pipe line can be cooled with natural cold air, cooled with forced cold air, or cooled by exchanging temperature with water or other liquid. The conduit curved in a substantially U shape may be closer to bending than bending.

The cross section of the conduit may be circular or polygonal. The area of the cross section of the conduit is preferably in the range of 20 to 20000 mm ² from the viewpoint of liquefaction efficiency and ventilation resistance. When the cross section of the pipe is circular, the inner diameter is preferably in the range of 5 to 50 mm from the viewpoint of liquefaction efficiency and ventilation resistance. In addition, as the thickness of the pipe line, a thinner one is preferable for reducing the saturated vapor pressure of malodorous gas by cooling the pipe line, and it is preferable in terms of strength in the case of plastic. A range of 1 to 3 mm is preferred. The length of the conduit is preferably in the range of a substantially U-shaped overall length of 500 to 1500 mm from the viewpoint of ventilation resistance.

  Furthermore, the gas can be passed through the pipeline by applying a negative pressure to the malodorous gas from the outlet end side. If comprised in this way, it is hard to generate | occur | produce leakage of malodorous gas like the case where it pushes in with a positive pressure from the entrance end side. Further, by sucking with a suction fan or the like from the outlet end side, a device such as a suction fan sucks the dehumidified gas, thereby protecting the device.

(Invention of Claim 6)
The deodorizing apparatus according to the present invention is the deodorizing apparatus according to claim 5, and has a dehumidifying mechanism in which the inverted pipe line bent in a substantially U shape has a flat shape in the vertical direction in the vicinity of the direction change area. It is characterized by.

  If comprised in this way, the cross-sectional area is reducing in the direction change area vicinity of a pipe line, Since the water vapor | steam in malodorous gas is easy to contact the inner wall of a pipe line, liquefaction efficiency (dehumidification property) can be improved. Further, by making the shape flat only in the vicinity of the direction change zone, both low pipe resistance and high liquefaction efficiency can be achieved. The degree of flatness (minor axis / major axis) is preferably 5 to 50% from the viewpoint of the balance between low pipe resistance and high liquefaction efficiency.

  Since the activated carbon storage case of the present invention has the above-described configuration, it can be carried by one person and the replacement of the activated carbon can be easily performed. Moreover, since it can connect only by stacking activated carbon accommodation cases, construction and installation of an upflow activated carbon adsorption tower are easy. Furthermore, since the size of the activated carbon case itself is limited, the upward-flow activated carbon adsorption tower and the deodorizing apparatus can be reduced in size, and can be used even in places where the installation space is limited.

  Below, the activated carbon storage case of this invention, the activated carbon adsorption tower using this case, and the Example as the best form for implementing a deodorizing apparatus are demonstrated in detail.

  FIG. 1 is a perspective view of an activated carbon storage case 2 of the present invention, FIG. 2 is a front view showing an embodiment of the upward flow activated carbon adsorption tower 1 of the present invention, and FIG. 3 is a partial cross section of the upward flow activated carbon adsorption tower 1 FIG. 4 is a partially sectional front view showing an embodiment of the deodorizing apparatus 6 of the present invention, FIG. 5 is an enlarged explanatory view of the vicinity of the pipe line 8 of the dehumidifying apparatus 7, and FIG. FIG. 7 is an explanatory diagram of the dehumidifying device 7, the activated carbon adsorption tower 1, the suction fan F and the like in another form.

(About up-flow activated carbon adsorption tower 1)
As shown in FIGS. 2 and 3, the upward flow activated carbon adsorption tower 1 of the present invention has activated carbon storage cases 2 stacked in a plurality of stages, and malodorous gas to be deodorized in the lowest activated carbon storage case 2. A gas introduction path 3 for guiding the deodorized gas that has passed through each activated carbon layer, a gas discharge path 4 for exhausting the deodorized gas from the activated carbon housing case 2 at the top to the outside, and a suction fan F for sucking the malodorous gas. . Further, the upward flow activated carbon adsorption tower 1 has a pressing member 5 for preventing the fall of the activated carbon containing case 2 stacked in a plurality of stages. The pressing member 5 is, for example, a metal rod-like member, and is detachably mounted between the gas introduction path 3 and the gas discharge path 4, and a lower end portion is fixed to the mounting table or the ground. As a result, the activated carbon storage cases 2 stacked in a plurality of stages are pressurized so as to be sandwiched between the gas introduction path 3 and the gas discharge path 4, so that overturning is prevented and each of the storage cases 2 is airtight. Retained. In addition, the material of the pressing member 5 is not limited to a metal material, and may be made of wood or plastic, and may be a plurality of attachments instead of only one.

  Here, the upward flow activated carbon adsorption tower 1 does not have to stack the activated carbon housing case 1 in a plurality of stages, and may have only one stage. Usually, since the malodorous gas to be deodorized is composed of a plurality of odor components, it is difficult to remove the odor component with only one type of activated carbon, and a plurality of types of activated carbon C are accommodated in separate activated carbon storage cases 2 respectively. In this way, an activated carbon deodorizing layer composed of a plurality of types of activated carbon is formed in a plurality of stages to completely remove a plurality of odor components. Here, as the activated carbon C to be used, activated carbon for aldehyde, activated carbon for neutral gas, activated carbon for basic gas, activated carbon for acidic gas can be mentioned. For neutral odor components such as methyl sulfide and methyl disulfide, activated carbon for neutral gas with halogen compounds such as iodine and bromine is used. For basic odor components such as ammonia and trimethylamine, minerals such as phosphoric acid are used. Activated carbon for basic gas impregnated with an acid is used, and activated carbon for acidic gas impregnated with an alkaline agent such as caustic soda is used for acidic odor components such as hydrogen sulfide and methyl mercaptan. Therefore, when there is only one kind of odor component of the malodorous gas to be processed, it is not necessary to stack the activated carbon housing case 2 in a plurality of stages.

(About activated carbon storage case 2)
As shown in FIG. 1, the activated carbon storage case 2 is a rectangular container, the upper and lower sides are opened as passages for malodorous gases, the side walls are made of a non-breathable member, and the granular activated carbon C is supported at the bottom. Net N for use. The support net N has a mesh shape so that the granular activated carbon C does not fall and allows malodorous gas to pass through. Further, at the lower part of the side wall of the activated carbon housing case 2, a fitting portion K for preventing displacement is formed so that the housing case 2 can be stacked in a plurality of stages (in this embodiment, 5 stages). The fitting portion K has an aspect that protrudes outward from the side wall, and when the accommodation case 2 is stacked, the upper portion of the side wall of the accommodation case 2 on the lower side is fitted (see FIG. 4). . Further, seal members S made of an elastic member such as rubber are attached to the upper and lower end surfaces of the side wall so that the space between the housing cases 2 at the time of lamination is airtight. In addition, in the upward flow activated carbon adsorption tower 1 of the aspect which laminated | stacked the activated carbon storage case 2 in multiple steps, the sealing member S maintains the outer periphery airtight state between each storage case 2, but the activated carbon storage case 2 is 1 step | paragraph. In the case of only gas, the outer peripheral airtight state between the ground and the gas introduction path 3 and the gas discharge path 4 described later is maintained.

  Here, examples of the material for the support net N for the activated carbon storage case 2 and the activated carbon C include plastic, stainless steel, and titanium. If it is made of plastic (vinyl chloride, polypropylene, etc.) or stainless steel, it exhibits corrosion resistance against odorous gases. The size of the storage case 2 is set to, for example, 300 mm in length, 300 mm in width, and 300 mm in height, and the total weight in a state where the activated carbon C is stored does not exceed about 15 kg, preferably about 10 kg. However, the size of the storage case 2 and the total weight including the granular activated carbon C are not limited to this, and if the size and weight can be easily carried by one worker when the activated carbon C is replaced. Good. The shape of the activated carbon housing case 2 is not limited to a square, and may be a circle or the like.

  Moreover, in the said Example, although the fitting part K was provided in the lower part side of the storage case 2, it is not restricted to this, It is set as the aspect protruded outward from the side wall in the upper part, and the side wall lower part of the upper case side storage case 2 is used. It is good also as what fits. Moreover, a recessed part or a convex part may be formed in the upper and lower end parts of the housing case 2, respectively, and these uneven parts may be fitted during lamination, or the sealing member S described above may be interposed between the uneven parts.

(About gas introduction path 3)
As shown in FIGS. 2 and 3, the gas introduction path 3 is a hollow member made of the same material and substantially the same size as the activated carbon housing case 2, and an upper portion thereof is opened as a passage for malodorous gas. One side surface is provided with an introduction pipe 3a connected to a dehumidifier 7 described later. The gas introduction path 3 is connected to the activated carbon housing case 2 located at the lowermost stage, and the malodorous gas that has passed through the dehumidifying device 7 is introduced into the upward flow activated carbon adsorption tower 1 through the introduction pipe 3a.

(About gas discharge path 4)
Similarly to the gas introduction path 4, the gas discharge path 4 is a hollow member made of the same material and substantially the same size as the activated carbon housing case 2, and its lower part is opened as a passage for malodorous gas. Is provided with a discharge pipe 4a connected to the suction fan F. The gas discharge path 4 is connected to the activated carbon housing case 2 located at the uppermost stage, and the malodorous gas that has passed through the activated carbon adsorption layer is discharged to the outside through the discharge pipe 4a after the odor component is removed.

  The malodorous gas is pulled in the upward flow activated carbon adsorption tower 1 by a negative pressure by the suction fan F connected to the discharge pipe 4a. That is, gas is allowed to pass through the activated carbon adsorption layer by applying a negative pressure to the malodorous gas from the gas discharge path 4 side. Here, the static pressure in the activated carbon adsorption tower 1 is set to 2 kPa, the speed at which malodorous gas passes through the upward flow activated carbon adsorption tower 1 is suppressed to about 0.2 to 0.5 m / s, Slowly pass through the activated carbon adsorption layer.

(About deodorizing device 6)
As shown in FIG. 4, the deodorizing device 6 includes the activated carbon adsorption tower 1 and a dehumidifying device 7 for removing water vapor from malodorous gas. In the activated carbon C, when the malodorous gas is high in humidity, the surface of the activated carbon is covered with moisture due to condensation, and the pores of the activated carbon are blocked with moisture, reducing the adsorption power of odorous components. It is desirable to remove water vapor from malodorous gas before introducing. In particular, malodorous gases generated in wastewater treatment facilities, manure treatment plants, sewage treatment plants, disposer systems in buildings and condominiums, etc., have a high temperature and humidity and contain saturated water vapor. Water removal by an air filter or mist separator is performed. However, even if mist-like water droplets were removed with an air filter or mist separator, the water vapor passed almost as it was, so the gas containing a large amount of water vapor was cooled by the outside temperature during the adsorption of activated carbon, and condensed water was removed. Has occurred and the adsorption performance has been reduced. Therefore, the deodorizing apparatus 6 of the present invention removes water vapor from the malodorous gas by the dehumidifying apparatus 7 having a dehumidifying mechanism as described in detail below.

(About the dehumidifier 7)
As shown in FIGS. 4 and 5, the dehumidifying device 7 includes an inverted substantially U-shaped pipe line 8 (plastic thin pipe), and the substantially U-shaped direction change area. A dehumidifying mechanism is provided so that 9 is on the upper side. The inverted and substantially curved U-shaped pipes 8 are arranged with a plurality of lines (15 pipes) arranged in two rows and slightly shifted (outside air is more likely to hit each pipe 8 and the cooling efficiency is improved. ), Odor gas is dispersed and processed.

  An untreated gas introduction space 10 is formed on the inlet end side I of the pipe 8 so that malodorous gas is introduced through the introduction pipe 11 from a disposer system of a building or an apartment. Further, a treated gas discharge space 12 is formed on the outlet end side O, and the treated gas is discharged from the discharged space 12 to the activated carbon adsorption tower 1 through the discharge pipe 13 and the introduction path 3a of the gas introduction path 3. The supplied and liquefied water is discarded on the ground.

  Then, malodorous gas is allowed to pass from the inlet end side I on the lower side of the pipe line 8 to the outlet end side O via the upper direction change area 9. Specifically, the activated carbon adsorption tower 1 is provided next to the dehumidifying device 7, and the gas is attracted by the suction fan F disposed in the activated carbon adsorption tower 1 and pulled by a negative pressure. That is, the gas was allowed to pass through the pipeline 8 by applying a negative pressure to the malodorous gas from the outlet end side O.

  The dehumidifier 7 is installed outside and the pipe 8 is cooled by the outside air temperature (natural cold air). The pipe 8 is forcibly cooled by mechanical cold air, or the temperature is exchanged by water or other liquid. And can be cooled.

The cross section of the pipe line 8 was circular. The material of the pipe line 8 is made of a vinyl chloride resin plastic having corrosion resistance against malodorous gas components (ammonia and hydrogen sulfide). The diameter of the inner diameter of the pipe line 8 was 22 mm, and the cross-sectional area was 380 mm ² . The thickness of the conduit 8 was 2 mm. The length of the pipe line 8 was 1120 mm (height 500 mm) with a substantially U-shaped overall length. The curvature radius of the substantially U-shaped direction change area 9 was set to 100 mm.

  This dehumidifying device 7 has an inverted U-shaped curved pipe line 8, and the outlet end side O from the lower inlet end side I of the pipe line 8 through the upper direction change area 9. Since the malodorous gas is allowed to pass through, the water vapor in the malodorous gas comes into contact with the inner wall of the pipe line 8 and is liquefied, so that the water vapor can be removed. Further, since the substantially U-shaped direction change area 9 is disposed on the upper side, the water liquefied on the inner wall of the pipe 8 flows down the inlet 8 to the inlet end I and outlet end O. And can be disposed directly on the ground.

  In addition, since a plurality (15) of the inverted pipes 8 bent in a substantially U shape are arranged to allow the malodorous gas to pass through in a distributed manner, a large amount of gas capacity can be processed all at once. In addition, there is an advantage that the gas can be dispersed and processed in a rectified state. Further, negative gas is applied to the malodorous gas from the outlet end side O so that the gas is allowed to pass through the pipe line 8. Leakage of malodorous gas as if the positive pressure was pushed in from the inlet end side I was leaked. Is unlikely to occur. Further, by sucking with the suction fan F from the outlet end side O, devices such as the suction fan F suck the gas after dehumidification, so that there is an advantage that the device is protected.

  When this dehumidifier 7 processed a gas containing saturated water vapor and malodorous components (ammonia and hydrogen sulfide) at a temperature of 43 ° C. in an atmosphere at an external temperature of 35 ° C., 40% of the water vapor could be removed. Specifically, water vapor liquefied on the inner wall of the pipe 8 in the upper half of the first half and the second half of the second half of the pipe 8 curved in a substantially U shape. This way of taking was totally unexpected. The reason why the water vapor can be taken very well in this way is mainly due to the effect of lowering the gas temperature in the upward path, and in the downward path, the gas flow is disturbed when passing through the substantially U-shaped direction change zone 9. This is considered to be due to the fact that the spiral flow (spiral flow [vortex flow] was observed when smoke gas was flowed) was generated, and the air flow along the inner wall of the pipe 8 became longer and the cooling efficiency was improved. It is done.

  And after passing through this dehumidifier 7, there was almost no condensation near the activated carbon housing case 2 of the upward flow activated carbon adsorption tower 1, and the performance of the activated carbon C was not deteriorated. Further, the gas passage resistance by the dehumidifier 7 is small, and it is not necessary to increase the size of the suction fan F disposed in the rear upward activated carbon adsorption tower 1.

  In addition, as shown in FIG. 6, you may form in the flat shape which the top part in the direction change area 9 of the said substantially U-shaped pipe line 8 was crushed a little in the vertical direction. Specifically, the degree of flatness was 20 mm in the vertical direction and 25 mm in the horizontal direction (flatness 25%). Thus, by making the substantially inverted U-shaped pipe line 8 a flat shape in the vicinity of the direction change area 9, the cross-sectional area is reduced in the vicinity of the direction change area 9 of the pipe line 8, and water vapor in the odor gas is reduced. Since it becomes easy to contact the inner wall of the pipe line 8, liquefaction efficiency (dehumidification) can be improved. In addition, by making the shape flat only in the vicinity of the direction change area 9, it is possible to achieve both low pipe resistance and high liquefaction efficiency, and disturbance due to gas pressure change when passing through the substantially U-shaped direction change area 9. There is an advantage that an increase effect of flow generation can be expected.

  In the dehumidifying device 7 having the flat substantially U-shaped direction change area 9, when a gas containing saturated water vapor and malodorous components (ammonia and hydrogen sulfide) is treated at a temperature of 43 ° C. in an atmosphere of an external temperature of 35 ° C., 43% of water vapor could be removed. The steam removal efficiency is improved as compared with the non-flat direction change area 9 described above because of the effect of increasing the generation of turbulence due to the change in gas pressure when passing through the flat, substantially U-shaped direction change area 9. This is considered to be due to the fact that the spiral flow becomes stronger, the air flow conductor on the inner wall of the pipe line 8 resulting from this spiral flow becomes longer and the cooling efficiency is improved.

  Further, as shown in FIG. 7, in order to keep the relative humidity at the inlet of the activated carbon adsorption tower 1 low, the dehumidifying device 7 having the above-described dehumidifying mechanism is accommodated in the dehumidifying chamber 14 having the outside air inlet 14a. In addition, a cooling air intake pipe 15 having a hole 15 a is disposed, and one end side of the cooling air intake pipe 15 and the pipe line portion 13 near the inlet of the activated carbon adsorption tower 1 are connected via an adjustment damper 17. Also good. With this added configuration, the air flowing into the dehumidifying chamber 14 from the outside air intake port 14a (the substantially U-shaped pipe line and the efficiently warmed outside air) is converted into the hole 15a → the cooling air intake tube 15 → the adjustment damper 17 → Pipe portion 13 near the entrance of the activated carbon adsorption tower 1 → The activated carbon adsorption tower 1 is discharged into the atmosphere.

  Further, as shown in FIG. 7, the suction fan F is accommodated in the fan case FC having the outside air intake f, and the fan case FC and the pipe line portion 13 near the inlet of the activated carbon adsorption tower 1 are adjusted. It is good also as what connects with the air intake pipe 16 via the damper 18 for an object. With this added configuration, the outside air that flows into the fan case FC from the outside air inlet f and is heated by the heat generated by the motor of the suction fan F is transferred to the air intake pipe 16 → the adjustment damper 18 → the activated carbon adsorption tower 1. The pipe portion 13 near the inlet is discharged to the atmosphere through the activated carbon adsorption tower 1.

  In addition, the said external air is normally a temperature lower than the odor gas (35 degreeC-40 degreeC, humidity about 100%) causing a dew condensation, and a dry state.

  Here, in the state in which the dry outside air from the heated cooling air intake pipe 15 and the air intake pipe 16 is about 5% of the processing gas air volume, when the relative humidity of the odor gas is 100%, the activated carbon adsorption tower The relative humidity at the entrance of 1 is about 75 to 80%. For this reason, no condensation occurs in the activated carbon adsorption tower 1. It should be noted that there is no practical problem with respect to the gas treatment performance if the amount of dry ambient air mixed from the heated cooling air intake pipe 15 and the air intake pipe 16 is about 5%.

  In addition, the intake of the outside air described above is forced suction by suction on the suction side (lower than atmospheric pressure) of the duct, and the dehumidifying performance is improved as compared with natural ventilation.

  Further, the heat generated by the motor of the suction fan F is absorbed by the outside air flowing into the fan case FC from the outside air inlet f, and as a result, there is an effect of extending the life of the bearing and the like.

  Therefore, the dehumidifying device 7 of the aspect shown in FIG. 7 has an excellent feature that the dehumidifying performance and the reliability of the device are remarkably improved without newly adding another device for forced suction or cooling. it is obvious.

  As described above, the deodorizing device 6 is a combination of the upflow activated carbon adsorption tower 1 and the dehumidifying device 7, first deodorizing malodorous gas with the dehumidifying device 7, and then deodorized with activated carbon C with the upward flow activated carbon adsorption tower 1. Since it was made to do, it has the advantage that the activated carbon C can be made lasting by removing the water vapor | steam contained in the malodorous gas which reduces the adsorptive power of the activated carbon C efficiently. Moreover, since the activated carbon storage case 2 is heavy enough to be carried by one person, the replacement of the activated carbon C is easy. Moreover, since the whole dimension of the deodorizing apparatus 6 can be set small compared with the conventional deodorizing apparatus (for example, 600 mm in width, 1000 mm in depth, and 2000 mm in height), it can be used in places where installation space is limited. Furthermore, if a caster or the like is attached to the bottom of the deodorizing device 6 ', it becomes easy to move and can be used by being carried. Therefore, it can be used as a deodorizing device that is used for a limited time at a construction site or a construction site.

  FIG. 8 is a schematic perspective view of an upflow activated carbon adsorption tower 1 ′ according to another embodiment of the present invention, and FIG. 9 shows an activated carbon storage case 2 ′ mounted on a mounting table in the upward flow activated carbon adsorption tower 1 ′ of FIG. FIG. 10 is a front view showing another embodiment of the deodorizing apparatus 6 ′ of the present invention, and FIG. 11 is a top view of the deodorizing apparatus 6 ′ of FIG.

(Regarding the upward flow activated carbon adsorption tower 1 ')
As shown in FIG. 8, the upward flow activated carbon adsorption tower 1 ′ of the present invention is air-tightly covered with a steel plate, has a mounting table 19 on which the activated carbon containing case 2 ′ is mounted, and is deodorized. A gas introduction path 3 ′ connected to the introduction pipe 3 a ′ for guiding the malodorous gas to be directed to the lower side of the mounting table 19, and a discharge for discharging the deodorized gas obtained above the activated carbon housing case 2 ′ to the outside And a gas discharge path 4 'to which a pipe 4a' is connected. The mounting table 19 is configured by assembling steel materials in a lattice shape so as to be parallel to the floor surface of the upward flow activated carbon housing tower 1 ′. Then, as shown in FIGS. 8 and 9, accommodation cases 2 'each containing activated carbon C are placed on the placement portions 19a, 19a, ... formed of steel. In addition, the upward flow activated carbon storage tower 1 'is provided with a door for carrying in / out of a storage case 2' (not shown).

  Such an upflow activated carbon adsorption tower 1 'is configured as one room (deodorization chamber) whose periphery is airtightly covered with a steel plate, and an activated carbon storage case 2' is installed in the deodorization chamber. Therefore, compared to the upward flow activated carbon adsorption tower 1 in the above-described Example 1 in which the activated carbon containing case 2 is directly exposed to the outside air, the airtightness is further protected, and the influence on the surrounding residents due to the leakage of malodorous gas is suppressed. It is done.

(About activated carbon storage case 2 ')
As shown in FIG. 9, the activated carbon storage case 2 ′ is a rectangular cartridge type container, and basically has the same configuration as that of the activated carbon storage case 2 in the first embodiment. The side wall is made of a non-breathable member, and has a support net N (not shown) for the activated carbon C at the bottom. Similarly to the activated carbon housing case 2 described above, a misalignment-preventing fitting portion K that can stack a plurality of housing cases 2 ′ may be formed on the lower side of the side wall. A sealing member made of an elastic member such as rubber for bringing the contact surface between the storage cases 2 at the time of stacking or the contact surface with the mounting table 19 into an outer peripheral airtight state may be attached to the portion.

  Examples of materials for the housing case 2 'and the support net N for the activated carbon C include plastic, stainless steel, and titanium. If it is made of plastic (vinyl chloride, polypropylene, etc.) or stainless steel, it exhibits corrosion resistance against odorous gases. The size of the housing case 2 ′ is set to, for example, 350 mm long, 450 mm wide and 200 mm high, and the total weight in the state where the activated carbon C is housed does not exceed about 15 kg, preferably about 10 kg.

(About deodorizing device 6 ')
As shown in FIGS. 10 and 11, the deodorizing device 6 ′ includes the above-described storage case 2 ′ stacked in a plurality of stages (in this embodiment, five stages) in a deodorizing chamber, and in a plurality of rows (in this embodiment, three rows). ) The arranged upward flow activated carbon containing tower 1 'and a dehumidifying device 7 for removing water vapor from malodorous gas. In the activated carbon C, if the humidity of the malodorous gas is high, the surface of the activated carbon is covered with moisture due to dew condensation, and the pores of the activated carbon are blocked with moisture, reducing the adsorption power of odor components. It is desirable to remove water vapor from malodorous gas before introducing the gas.

(About the dehumidifier 7)
As shown in FIGS. 10 and 11, the dehumidifying device 7 has a pipe line 8 (plastic small-diameter pipe) curved in an inverted substantially U shape, and the substantially U-shaped direction change area 9. Has a dehumidifying mechanism arranged so as to be on the upper side. A plurality of the pipe lines 8 curved in an inverted substantially U-shape are arranged (outside air is more likely to hit each pipe line 8 and cooling efficiency is improved), and malodorous gas is dispersed and processed. Yes. In addition, since the structure of the dehumidification apparatus 7 and its dehumidification mechanism is the same as Example 1, the detailed description is abbreviate | omitted.

  In addition, an untreated gas introduction space 10 is formed on the inlet end side I of the conduit 8 so that malodorous gas is introduced through the introduction pipe 11 from a disposer system of a building or an apartment. Further, a treated gas discharge space 12 is formed on the outlet end side O, and the treated gas is supplied from the discharge space 12 to the deodorizing fan F ′ via the discharge pipe 13 and the liquefied moisture is discharged from the drain D. I am trying to dispose of it on the ground.

Then, malodorous gas is allowed to pass from the inlet end side I on the lower side of the pipe line 8 to the outlet end side O via the upper direction change area 9. Specifically, the dehumidifying device 7 is connected to the upward-flow activated carbon containing tower 1 'via a deodorizing fan F', and the deodorizing fan F 'attracts gas and pulls it by negative pressure. After passing through 7, a positive pressure was applied and the gas was pushed in so that it passed through the upward flow activated carbon containing tower 1 ′. In addition, the specification of the deodorizing fan F 'when the nine activated carbon housing cases 2' are stacked in five stages (a total of 45) was set to an air volume of 18 m ³ / min, a static pressure of 2.1 kPa, and an electric power of 1.5 kW.

  The dehumidifier 7 is installed outside and the pipe 8 is cooled by the outside air temperature (natural cold air). The pipe 8 is forcibly cooled by mechanical cold air, or the temperature is exchanged by water or other liquid. And can be cooled.

  As described above, the deodorizing device 6 ′ is a combination of the upward flow activated carbon containing tower 1 ′ and the dehumidifying device 7, first deodorizing the malodorous gas with the dehumidifying device 7, and then the activated carbon in the upward flow activated carbon containing tower 1 ′. Since the deodorization is performed with C, there is an advantage that the activated carbon C can be made to last for a long time by efficiently removing water vapor contained in the malodorous gas that lowers the adsorption power of the activated carbon C. Moreover, since the activated carbon storage case 2 'is heavy enough to be carried by one person, the replacement of the activated carbon C is easy. Moreover, since the whole dimension of deodorizing apparatus 6 'can be set small compared with the conventional deodorizing apparatus (for example, 2200mm in width, 2800mm in depth, 1925mm in height), it can be used also in the place where installation space was restricted. Furthermore, if a caster or the like is attached to the bottom of the deodorizing device 6 ', it becomes easy to move and can be used by being carried. Therefore, it can be used as a deodorizing device that is used for a limited time at a construction site or a construction site.

The perspective view which shows one Example of the activated carbon adsorption | suction case of this invention The front view which shows one Example of the upward flow activated carbon adsorption tower of this invention. The partial cross section front view of the upward flow activated carbon adsorption tower of FIG. The partial cross section front view which shows one Embodiment of the deodorizing apparatus of this invention. The expansion explanatory view near the pipe line of a dehumidifier. Expansion explanatory drawing of the pipe line of another form. Explanatory drawing of the dehumidification apparatus of another form, the activated carbon adsorption tower 1, a suction fan, etc. FIG. The schematic perspective view of the upward flow activated carbon adsorption tower of other embodiment of this invention. Explanatory drawing which shows the state which mounted the activated carbon accommodation case on the mounting base in the upward flow activated carbon adsorption tower of FIG. The front view which shows other embodiment of the deodorizing apparatus of this invention. The top view of the deodorizing apparatus of FIG. The general | schematic vertical sectional view of the conventional activated carbon adsorption tower.

Explanation of symbols

C activated carbon K fitting part N support net S seal member 1, 1 'upward flow activated carbon adsorption tower 2, 2' activated carbon storage case 3, 3 'gas introduction path 4, 4' gas discharge path 5 holding member 6, 6 ′ Deodorizing device 7 Dehumidifying device 8 Pipe line 9 Direction change area 10 Introduction space 11 Introduction tube 12 Discharge space 13 Discharge tube

Claims (6)

  An activated carbon containing case whose upper and lower sides are opened as a passage for malodorous gas and whose side wall is made of a non-breathable member and has a supporting net for activated carbon at the bottom, wherein the side wall includes a multi-stage stack of the containing case. A fitting part is formed, and a sealing member for sealing in an outer peripheral airtight state is provided on the end face, and the total weight in a state in which activated carbon is accommodated is 5 to 15 kg. However, the activated carbon storage case is portable.   A gas introduction path for introducing malodorous gas to be deodorized is provided below the activated carbon storage case according to claim 1, and a gas discharge path for discharging the deodorized gas to the outside is provided above the activated carbon storage case. An up-flow activated carbon adsorption tower characterized by that.   The upward flow activated carbon adsorption tower according to claim 2, wherein a holding member for the activated carbon storage case is installed between the gas introduction path and the gas discharge path.   A deodorizing device comprising the upward flow activated carbon adsorption tower according to claim 2 and a dehumidifying device for removing water vapor from malodorous gas.   5. The deodorizing device according to claim 4, wherein the dehumidifying device has an inverted substantially U-shaped curved pipe line, and the substantially U-shaped direction change area is disposed on the upper side. And a deodorizing device having a dehumidifying mechanism that allows malodorous gas to pass from the lower inlet end side to the outlet end side through the upper direction change area. 6. The deodorizing apparatus according to claim 5, further comprising a dehumidifying mechanism in which the inverted pipe line curved in a substantially U shape has a flat shape in the vertical direction in the vicinity of the direction change area.

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