JP5460558B2 - Photocatalytic device - Google Patents

Description

  The present invention relates to a photocatalyst device including a photocatalyst filter and a light source. More specifically, the photocatalyst device can easily perform maintenance work such as inspection, cleaning, and replacement of a built-in photocatalyst filter and light source even if the scale of the device increases. About. The present invention can be applied to any device using a photocatalyst, such as a photocatalyst deodorization device, a photocatalyst sterilization (antibacterial) device, a photocatalyst purification device, and the like.

BACKGROUND ART A photocatalytic deodorizing apparatus including a photocatalytic filter and a light source for irradiating the photocatalytic filter with light such as ultraviolet rays has been known for a long time. A typical photocatalyst is titanium oxide (TiO ₂ ). In this type of photocatalyst deodorization apparatus, the strong oxidization action of the photocatalyst is used to adsorb and decompose the odor contained in the gas to be treated. In other words, the organic substance contained in the gas to be treated is decomposed into water and carbon dioxide by the oxidizing action of the photocatalyst generated by light irradiation, and the odor in the gas is adsorbed and decomposed.

  However, due to the oxidizing action of the photocatalyst, for example, a sulfur compound (for example, hydrogen sulfide) becomes sulfuric acid and a nitrogen compound (for example, ammonia) becomes nitric acid and adheres to the surface of the photocatalyst. And these deposit | attachments become catalyst poison and reduce the capability of a photocatalyst filter. For this reason, it is necessary to periodically inspect and regenerate the ability of the photocatalytic filter by taking out the photocatalytic filter and washing it with water or baking it. In addition, a photocatalytic filter that cannot be used for some reason may be replaced with a new one. The same applies to the light source, and it is necessary to periodically check this, and to replace a failed light source or a light source that has reached the end of its life with a new one on a regular basis.

  As described above, since the photocatalyst deodorization apparatus regularly requires maintenance work such as inspection, cleaning, and replacement of the built-in photocatalyst filter and light source, the work needs to be easily performed. Therefore, techniques for improving such maintainability have been proposed for some time.

  For example, in the photocatalytic device disclosed in Patent Document 1 (Japanese Patent Application Laid-Open No. 2001-246228) (in this device, deodorization is not limited), at least a base frame having a bottom plate and left and right side plates is used for ultraviolet irradiation. A light source and a filter frame for attaching a filter are attached, and the photocatalytic filter is detachably attached to the filter frame. During maintenance of the photocatalyst filter, the photocatalyst filter can be inspected, cleaned, replaced, etc. by lifting the filter frame to expose the photocatalyst filter from the base frame and removing the fixture fixing the photocatalyst filter. . For this reason, when the function is deteriorated, the photocatalytic filter can be easily removed from the photocatalytic device and cleaned or replaced with a new one. Therefore, the whole photocatalyst device can be used semipermanently. (See claim 1, FIGS. 1-7, paragraphs 0006-0009, 0050-0054).

  However, in the photocatalyst device disclosed in Patent Document 1, since the light source for ultraviolet irradiation is individually attached to the base plate, it cannot be pulled up like the filter frame and exposed from the base frame. For this reason, there is a problem that it takes time to check and replace the light source. In addition, there is a disadvantage that it is not suitable for a large-scale photocatalytic deodorization apparatus. Therefore, an example of a photocatalyst deodorizing apparatus that solves these difficulties is disclosed in Patent Document 2 (Japanese Patent Laid-Open No. 2006-334195).

  In the photocatalyst deodorization apparatus disclosed in Patent Document 2, a plurality of plate-like photocatalytic filters are unitized (integrated) by a holding body, and a plurality of light sources (for example, black light) are unitized by a frame. A plurality of unitized photocatalytic filters and light sources (that is, a photocatalytic filter unit and a light source unit) are alternately arranged perpendicular to the gas flow axis and perpendicular to the gas flow axis. It is arranged so that it can be inserted and removed independently of the direction. For this reason, if the photocatalytic filter unit or the light source unit is pulled out from the casing in the direction perpendicular to the gas flow axis, the inspection and replacement of the light source as well as the photocatalytic filter can be easily performed. Therefore, maintenance work is greatly reduced. Further, it is not necessary to move the entire photocatalyst deodorization apparatus or to perform detailed disassembly work of the apparatus. Therefore, even if the apparatus becomes large-scale, maintenance work is easy (see claim 1, FIGS. 1 to 3, paragraphs 0011 to 0016, 0022).

JP 2001-246228 A JP 2006-334195 A

  As described above, in the photocatalyst device disclosed in Patent Document 1, it is easy to inspect and replace the photocatalyst filter, but it takes time to inspect and replace the light source, and a large-scale photocatalyst deodorization device has There is a problem that it is not suitable.

  In the photocatalyst deodorization apparatus disclosed in Patent Document 2, the photocatalyst filter and the light source are each unitized, and are arranged so that they can be inserted and removed independently in a direction perpendicular to the gas flow axis. -The unit or the light source unit can be pulled out in the same direction and pulled out, and can be inserted in the reverse direction. Therefore, the maintainability is good as long as the units can be easily pulled out in the same direction or inserted in the reverse direction. However, if the equipment becomes large beyond that range, and the scale and weight of the photocatalytic filter unit and the light source unit increase, a great deal of labor is required to pull out and insert these units, and the maintenance work becomes very heavy. There is a problem that it becomes difficult.

  For example, when the size of the photocatalytic filter unit is a rectangular plate having a length of about 1400 mm and a width of about 900 mm, the weight is as large as about 50 kg. Even in the case of a rectangular plate shape having a length of about 1440 mm and a width of about 630 mm, the weight is about 30 kg. Therefore, when the photocatalyst deodorizing apparatus of Patent Document 2 is increased to this extent, a single operator manually pulls out or inserts the photocatalytic filter unit or the light source unit in a direction perpendicular to the gas flow axis, It seems that maintenance work such as inspection of filters and light sources is almost impossible unless the mechanism for moving the units is devised. There is no description in Patent Document 2 regarding a specific configuration in which the photocatalytic filter unit and the light source unit are independently detachably arranged in a direction perpendicular to the gas flow axis.

  The present invention has been made in consideration of such circumstances, and its purpose is that even when the photocatalytic filter unit or the light source unit is enlarged to such an extent that the operator cannot easily move it manually, An object of the present invention is to provide a photocatalyst device that can easily perform maintenance work such as inspection, cleaning, and replacement of a photocatalyst filter or a light source, and that can be realized at a low cost with a simple structure.

  Another object of the present invention is to perform maintenance work such as inspection, cleaning, and replacement of the photocatalyst filter or light source even when the photocatalyst filter unit or the light source unit is enlarged to such an extent that the operator cannot easily move it manually. It is to provide a photocatalytic device that can be executed by a person alone.

  Other objects of the present invention which are not specified here will become apparent from the following description and the accompanying drawings.

(1) The photocatalytic device of the present invention comprises:
A first photocatalyst filter comprising a plurality of substantially flat photocatalyst filter modules including a photocatalyst filter and a light source for activating the photocatalyst filter and arranged adjacent to each other substantially orthogonal to the gas flow direction A group of modules;
A module support structure that supports a plurality of the photocatalyst filter modules of the first photocatalyst filter module group in a state where independent translational movement in the gas flow direction is possible;
A standby space is formed on the gas introduction end side or gas discharge end side of the first photocatalytic filter / module group,
If necessary, a necessary maintenance space is formed by translating a required number of the photocatalyst filter modules from the first photocatalyst filter module group to the standby space along the gas flow direction. It is characterized by that.

  Since the photocatalytic device of the present invention has the above-described configuration, the photocatalytic filter and the light source included in any one of the photocatalytic filter modules in the first photocatalytic filter module group are inspected, When performing maintenance work such as replacement and cleaning, a required number of the photocatalyst filter modules from the first photocatalyst filter module group are placed in the standby space along the gas flow direction as necessary. By translationally moving, a maintenance space can be formed in the vicinity of the photocatalytic filter module to be maintained.

  However, when the photocatalyst filter module to be maintained is in a position closest to the standby space, it is not always necessary to translate the photocatalytic filter module to the standby space. This is because maintenance work may be performed using the standby space as the maintenance space.

  Each of the photocatalytic filter modules includes the photocatalytic filter and the light source. The photocatalytic filter unit and the light source unit (for example, those incorporated in the photocatalytic deodorizing apparatus disclosed in Patent Document 2) Since it corresponds to an integrated configuration, if the gas introduction end side or the gas discharge end side of the photocatalyst filter module to be maintained can be accessed from the maintenance space or the standby space, the photocatalytic filter and the light source Maintenance work can be performed on any of these.

  Further, since the translational movement of the photocatalytic filter module is performed in the gas flow direction substantially perpendicular to the modules, the photocatalytic filter unit and the light source unit are increased in size so that they cannot be easily moved manually by an operator. Even in this case, as in the case of the photocatalytic deodorization apparatus disclosed in Patent Document 2, it is easier to cope with the photocatalytic filter module than when it can be inserted and removed in a direction parallel to the photocatalytic filter module. For example, it is easy to increase the size of the photocatalytic filter unit and the light source unit by facilitating translational movement of the photocatalytic filter module by using rolling elements such as pulleys, rollers, and bearings together with guide members such as rails. It can correspond to.

  On the other hand, the module support structure only needs to support a plurality of the photocatalyst filter modules in the first photocatalyst filter module group in a state where independent translational movement in the gas flow direction is possible. By individually engaging the photocatalyst filter module with a guide member such as a rail and allowing the photocatalyst filter module to move along the guide member, it can be realized with a simple structure and low cost. In addition, even when the photocatalytic filter unit or the light source unit is enlarged to such an extent that the operator cannot easily move it manually, it is only necessary to use rolling elements such as pulleys, rollers, and bearings in combination with the guide member. Even in this case, the module support structure can be realized with a simple structure and low cost.

  Therefore, in the photocatalyst device of the present invention, even when the photocatalyst filter unit or the light source unit is enlarged to such an extent that the operator cannot easily move it manually, maintenance work such as inspection, cleaning, and replacement of the photocatalyst filter or the light source is facilitated. The structure is simple and can be realized at low cost.

  (2) In a preferred example of the photocatalyst deodorization apparatus of the present invention, the module support structure is fixed to each of the plurality of the photocatalytic filter modules and the guide member extending along the gas flow direction, and the guide member And an engaging member engaged in translation.

  (3) In another preferable example of the photocatalyst deodorization apparatus of the present invention, the guide member is fixed in a substantially horizontal direction, and each of the photocatalyst filter modules is suspended from the guide member by the engaging member. In this example, there is an advantage that the module support structure becomes simpler and translational movement of the photocatalytic filter module becomes easier.

  (4) In still another preferred example of the photocatalyst deodorization apparatus of the present invention, rolling means (for example, a pulley, a roller) that rolls on the engagement member or the guide member in contact with the guide member or the engagement member. , Bearings, etc.) are mounted. In this example, the photocatalyst filter module can be translated and moved more easily and smoothly. As a result, even if the photocatalyst filter module is enlarged to an extent that cannot be easily moved manually by an operator, There is an advantage that maintenance work such as inspection, cleaning, and replacement can be performed by an operator alone.

  (5) In still another preferred example of the photocatalyst deodorizing apparatus of the present invention, the guide member is bridged between a first support and a second support installed on both ends of the guide member, The first photocatalytic filter / module group is held in contact with the first support, and the standby space is formed on the second support. In this example, a partition wall (having an opening through which the gas to be processed passes) that partitions the primary side space to which the gas to be processed is supplied and the secondary space to which the gas to be processed after processing is sent out is provided as the first. Since it can be used as a support, there is an advantage that the module support structure can be simplified.

  (6) In still another preferred example of the photocatalyst deodorization apparatus of the present invention, the first photocatalyst filter module group and the standby space are provided inside a casing. In this example, since both the first photocatalytic filter module group and the standby space are inside the casing, opening and closing required when the standby space is provided outside the casing is possible. Therefore, there is an advantage that the configuration of the casing can be simplified.

  (7) In still another preferred example of the photocatalyst deodorization apparatus of the present invention, the first photocatalyst filter module group is provided inside the casing, and the standby space is provided outside the casing. An openable / closable portion is formed at a location of the casing facing the standby space, and a required number of the photocatalytic filter modules are provided in the standby space via the openable openable / closable portion during maintenance. Translational movement is possible.

  (8) In still another preferred example of the photocatalyst deodorization apparatus of the present invention, each of the photocatalyst filter modules has a module main body having an opening through which a gas to be treated passes, and the opening fixed to the module main body. A filter frame having a window for mounting the photocatalytic filter at an overlapping position, and a light source mounting member (connector or the like) fixed to the module body or the filter frame so that the light source is disposed at an overlapping position with the window Including. This example has an advantage that the photocatalytic filter module can be realized with a simple configuration.

  (9) In still another preferable example of the photocatalyst deodorizing apparatus of the present invention, the photocatalyst filter is included adjacent to the gas introduction end side or the gas discharge end side of the first photocatalyst filter module group, and the light source The photocatalyst filter module which does not contain is additionally provided to constitute the second photocatalyst filter module group. In this example, in the second photocatalyst filter module group, the photocatalyst filter module including the photocatalyst filter and not including the light source is disposed on the gas introduction end side or the gas discharge end side. It becomes possible to irradiate the light emitted from all of the light sources to the photocatalytic filter on both sides thereof, and therefore, effectively use the power supplied to the light sources (that is, the light emitted from the light sources). There is an advantage that can be.

  In the photocatalyst device of the present invention, even when the photocatalyst filter unit or the light source unit is enlarged to such an extent that the operator cannot easily move it manually, maintenance work such as inspection, cleaning, and replacement of the photocatalyst filter or the light source is easily performed. In addition, it is possible to obtain an effect that the structure is simple and can be realized at low cost.

  When the engaging member is equipped with rolling means that rolls in contact with the guide member, the photocatalytic filter unit or the light source unit is enlarged to such an extent that the operator cannot easily move it manually. However, there is also an effect that an operator can perform maintenance work such as inspection, cleaning, and replacement of the photocatalytic filter or the light source alone.

It is a conceptual diagram which shows the structure at the time of the driving | operation of the photocatalyst deodorizing apparatus which concerns on 1st Embodiment of this invention. It is a conceptual diagram which shows the structure at the time of the maintenance of the photocatalyst deodorizing apparatus which concerns on 1st Embodiment of this invention. (A) is a top view which shows the state in which the photocatalyst filter and the black light are not mounted | worn of the photocatalyst filter module used for the photocatalyst deodorizing apparatus which concerns on 1st Embodiment of this invention, (b) is the front view It is. (A) is a top view which shows the state by which the black light was mounted | worn in the state of FIG. 3, (b) is the front view. (A) is a top view which shows the state by which the photocatalyst filter and the black light were mounted | worn in the state of FIG. 3, (b) is the front view. It is sectional drawing along the AA line of FIG. (A) is a fragmentary sectional view which shows the structure of the principal part of the module support structure used for the photocatalyst deodorizing apparatus concerning 1st Embodiment of this invention, (b) is the fragmentary top view. It is a partially cutaway side view which shows the whole structure at the time of the driving | operation of the photocatalyst deodorizing apparatus which concerns on 1st Embodiment of this invention. It is a partially notched side view which shows the whole structure at the time of the maintenance of the photocatalyst deodorizing apparatus which concerns on 1st Embodiment of this invention. It is a top view which shows the whole structure at the time of the driving | operation of the photocatalyst deodorizing apparatus which concerns on 1st Embodiment of this invention. It is a partially notched side view which shows the whole structure at the time of the driving | operation of the photocatalyst deodorizing apparatus which concerns on 2nd Embodiment of this invention. It is a partially notched side view which shows the whole structure at the time of the maintenance of the photocatalyst deodorizing apparatus which concerns on 2nd Embodiment of this invention.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of the invention will be described in detail with reference to the accompanying drawings.

(Configuration of the photocatalytic deodorization apparatus of the first embodiment)
The outline of the structure of the photocatalyst deodorizing apparatus 1 which concerns on 1st Embodiment of this invention is shown in FIG. 1 and FIG. The present embodiment corresponds to a case where the present invention is applied to a photocatalytic deodorization apparatus, but the present invention is not limited to this. Any photocatalytic device provided with a photocatalytic filter can be applied to photocatalytic devices other than the photocatalytic deodorizing device, for example, photocatalytic sterilization (antibacterial) devices, photocatalytic purification devices, and the like.

  As is clear from FIGS. 1 and 2, the photocatalytic deodorization apparatus 1 of the present embodiment includes five rectangular flat plate-like photocatalytic filter modules 20. The photocatalyst filter modules 20 are all arranged adjacent to each other in the same posture, and are brought into contact with the opposing surfaces of the module support 11 in a state of overlapping each other. During operation of the photocatalyst deodorizing apparatus 1, the state shown in FIG. 1 is maintained.

  Engaging members 24 are fixed to both ends in the width direction of the upper ends of the photocatalytic filter modules 20 respectively. These engaging members 24 are respectively engaged with two parallel guide rails 12 installed horizontally at a predetermined interval. All of these modules 20 are thus supported in a state of being suspended in the vertical direction from the guide rail 12 by the engaging member 24 and are also suspended in the guide rail 12 (that is, Translational movement is possible independently along the gas flow direction.

  Since each photocatalytic filter module 20 is orthogonal to the horizontal guide rail 12, the relatively long side of each module 20 extends in the vertical direction, and the relatively short side extends in the horizontal direction. Exist.

  One end of each guide rail 12 is fixed to the module support 11, and the other end is fixed to a rail support 13 (see FIG. 8) not shown. Thus, both guide rails 12 are bridged horizontally between the module support 11 and the rail support 13 in a state parallel to each other.

  The gas to be treated flows from the rail support 13 side to the module support 11 side along the extending direction of the guide rail 12 along the gas flow direction indicated by the arrows in the drawing. Accordingly, each photocatalytic filter module 20 is orthogonal to the gas flow direction.

  Of the five photocatalytic filter modules 20 described above, there are a plurality of (in this case, eight) modules 20 that are located farthest from the module support 11 (in other words, located closest to the rail support 13). ) Only the photocatalytic filter 30 is included, and the black light 27 as a light source is not included. The other four modules 20 include a plurality (eight here) photocatalytic filters 30 and a plurality (four here) black lights 27. Therefore, in the present specification, when only the four modules 20 including both the photocatalytic filter 30 and the black light 27 are indicated except for the module 20 that does not include the black light 27 as a light source, the photocatalytic filter module group. It is called 20A (first photocatalyst filter / module group), and when referring to the whole of the five modules 20, it is called photocatalyst filter / module group 20B (second photocatalyst filter / module group).

  The photocatalyst filter / module group 20B is equivalent to the photocatalyst filter / module group 20A added with one module 20 including the photocatalyst filter 30 and not including the black light 27.

  The module 20 located closest to the rail support 13 in the photocatalyst filter module group 20B includes only the photocatalyst filter 30 and does not include the black light 27 as the light source. This is because the photocatalytic filter 30 exists only on one side of the light 27 and the ultraviolet light emitted from the black light 27 cannot be effectively used. On the other hand, in the other module 20 (that is, the module 20 belonging to the photocatalyst filter module group 20A), the photocatalyst filter 30 is present on both sides of the black light 27, and ultraviolet light emitted from the black light 27 is transmitted on both sides thereof. The photocatalytic filter 30 is irradiated so that ultraviolet light (that is, power supplied to the black light 27) can be used effectively.

  As shown in FIG. 1 and FIG. 2, in the photocatalytic filter module 20, eight photocatalytic filters 30 are arranged in two rows in four rows in the vertical (vertical) direction. The black lights 27 are arranged in the vertical (vertical) direction at substantially equal intervals.

  During operation of the photocatalyst deodorization apparatus 1, as shown in FIG. 1, between the module support 11 and the rail support 13, on the gas introduction end side (upstream side in the gas flow direction) of the photocatalyst filter / module group 20B, A standby space S1 is formed. In this state, the five modules 20 of the module group 20 </ b> B overlap each other, and the module 20 at the gas discharge end is in contact with the opposing surface of the module support 11.

  At the time of maintenance of the photocatalyst deodorizing apparatus 1, as shown in FIG. 2, a necessary number of modules 20 from the module group 20B are installed on the gas introduction end side (gas flow side) along the gas flow direction (guide rail 12) as necessary. Translational upstream). In this state, a maintenance space S2 is formed between the module 20 that has been translated and the remaining modules 20 that have not been translated. When all of the five modules 20 are translated from the module group 20B, the maintenance space S2 is formed between the translated module 20 and the module support 11. The operator can perform necessary maintenance work on the maintenance target module 20 by using the maintenance space S2 or the standby space S1 thus formed.

  During maintenance, it is not necessary for all modules 20 included in the module group 20B to be moved to the standby space S1. This is because it is sufficient if the maintenance space S2 is formed in the vicinity of the module 20 to be maintained. For example, if two to three modules 20 are moved into the standby space S1, the space previously occupied by the moved module 20 becomes a considerably large maintenance space S2, and therefore the space is used. This is because the maintenance work for the remaining modules 20 that have not moved can often be performed.

  When performing maintenance work on the module 20 located closest to the gas introduction end in the photocatalytic filter / module group 20B, translational movement may not be necessary for any module 20 in the module group 20B. In that case, the standby space S1 may be used for maintenance, the module 20 to be maintained may be accessed from the gas introduction end side, and the photocatalytic filter 30 may be inspected and replaced.

  The photocatalyst filter / module group 20B, the engaging member 24, the guide rail 12, the module support 11 and the rail support 13 are actually composed of a gas inlet 15 and a gas outlet 16 as shown in FIGS. It is arrange | positioned inside the sealed casing 10 except for. The casing 10 has a rectangular parallelepiped box shape and is fixed on the base 14. Formed on the upper wall of the casing 10 are a gas inlet 15 for introducing the gas to be processed into the casing 10 and a gas outlet 16 for discharging the gas to be processed from the casing 10. The gas inlet 15 is provided at the upstream end in the gas flow direction. The gas discharge port 16 is provided at the downstream end in the gas flow direction, and is connected to the module support 11 by a duct 17.

  The gas to be treated is introduced into the casing 10 from the gas inlet 15, passes through the photocatalytic filter / module group 20 </ b> B along the arrow in the gas flow direction (perpendicular to the module 20), and the inside of the module support 11. Through the duct 17 and discharged from the gas discharge port 16 to the outside of the casing 10.

  Next, the configuration of the photocatalytic filter module 20 will be described in detail with reference to FIGS.

  The five photocatalyst filter modules 20 constituting the photocatalyst filter module group 20B all have the same configuration, and a plurality of (here, eight) photocatalyst filter units including a rectangular plate-like photocatalyst filter 30; This corresponds to a combination of light source units including four (here, four) black lights 27. However, the module 20 closest to the rail support 13 is provided with the photocatalytic filter 30 and the connector 28, but the configuration is different from the other modules 20 in that the black light 27 is not attached. .

  As shown in FIGS. 3A and 3B, a photocatalytic filter module 20 includes a highly rigid rectangular frame-shaped module main body 21 and a filter fixed so as to be fitted inside the module main body 21. A frame 22 is included. The filter frame 22 forms eight photocatalyst filter mounting windows 23 inside the module 20. Here, since the photocatalytic filter 30 is square, the window 23 is also square. Four sets of connectors 28 for connecting the black light 27 are mounted on the inside of the upper end portion and the lower end portion of the module main body 21, respectively.

  A rectangular opening for allowing the gas to be processed to pass through is formed inside the module body 21, and the eight windows 23 of the filter frame are arranged at positions overlapping the openings (inside the opening). Yes. The connector 28 is fixed to the module main body 21 so that the four black lights 27 are arranged at positions that overlap the eight windows 23.

  As shown in FIGS. 4A and 4B, the black light 27 attached by the connector 28 extends in the vertical direction over almost the entire module body 21 (that is, the module 20). The black lights 27 are arranged at almost equal intervals in the short side direction of the module main body 21, and this is because the ultraviolet light emitted from the black lights 27 is against the eight photocatalytic filters 30 attached to the windows 23. This is because the irradiation is as uniform as possible.

  The photocatalytic filter 30 is attached to each window 23 by a fixture (not shown) as shown in FIGS. 5 (a) and 5 (b) and FIG. About attachment of the photocatalyst filter 30, if it can attach and detach as needed, a well-known arbitrary method and arbitrary members can be used. For example, locking protrusions are formed on the upper and lower sides of the photocatalyst filter 30, and locking grooves into which the locking protrusions are inserted and locked are formed on the upper and lower edges of each window 23. Then, in the state where the photocatalytic filter 30 is slightly bent by applying an external force, the application of the external force is stopped after the two locking protrusions are inserted into the two locking grooves of the window 23, respectively. Thus, if the locking projection of the photocatalytic filter 30 is locked in the locking groove of the window 23, the photocatalytic filter 30 can be mounted without a fixture. When removing the photocatalytic filter 30 from the window 23, the photocatalytic filter 30 can be easily removed by applying an external force and slightly curving the photocatalytic filter 30.

  Although any known photocatalytic filter can be used as the photocatalytic filter 30, a filter formed by forming a titanium oxide film as a photocatalyst on the surface of the porous ceramic is preferable.

  As clearly shown in FIG. 6, the filter frame 22 is fixed to the edge on one side (downstream side) of the module body 21, and the connector 28 is fixed to the edge on the opposite side (upstream side). Therefore, there is a gap between the photocatalyst filter 30 attached to the frame 22 and the black light 27 attached to the connector 28, so that the photocatalyst filter 30 and the black light 27 do not interfere with each other.

  As a material used for the module main body 21 and the frame 22, stainless steel that is not deteriorated by ultraviolet rays is preferably used.

  FIGS. 7A and 7B show an engagement state between the engagement member 24 fixed to the upper end portion of the module main body 21 and the guide rail 12.

  Here, the engaging member 24 is a cylindrical member having a rectangular cross section and open at both ends, and a rotating shaft 25 and a pulley 26 are provided therein. The rotating shaft 25 extends in parallel with the short side of the module main body 21 and supports the pulley 26 rotatably inside the engaging member 24. Since the guide rail 12 is inserted into the engagement member 24 and is disposed immediately below the pulley 26, the pulley 26 can rotate on the guide rail 12. In this way, the module 20 can be translated along the guide rail 12 while being suspended.

  Two guide rails 12 as guide members, an engagement member 24 fixed to each photocatalytic filter module 20 and engaged with both guide rails 12, a rotary shaft 25 mounted on the engagement member 24, and The pulley 26 supports the five photocatalytic filter modules 20 in a state in which they can be independently translated in the gas flow direction (extension direction of the guide rail 12), and constitutes a “module support structure”. Yes.

  If the module 20 is not so heavy, the rotary shaft 25 and the pulley 26 of the module support structure may be omitted. In this case, an extra force is required for the translational movement of the module 20 as compared with the case where the rotary shaft 25 and the pulley 26 are used. However, if the module 20 is not so heavy, it can be omitted. If it does so, a module support structure will become simple and there exists an advantage which can reduce cost.

  As the guide member, a guide rail as in the present embodiment can be preferably used. However, the guide member is not limited to this, and any guide member having any configuration may be used as long as the module 20 is guided to enable translational movement. Can be used. For example, it is good also as a groove | channel formed in the ceiling of the casing 10, a support beam, etc. In this case, an engaging member configured to be inserted into the groove and engageable is used.

  In the first embodiment, a pulley is used as rolling means that rolls in contact with the guide member or the engaging member, but is not limited to this. For example, rollers, bearings, balls, etc. can be used.

(Use state of the photocatalyst deodorizing apparatus of the first embodiment)
Next, the use state of the photocatalyst deodorizing apparatus 1 of the first embodiment having the above configuration will be described.

  During operation, as shown in FIGS. 1, 8, and 10, the photocatalytic filter / module group 20 </ b> B is brought into contact with the opposing surface of the module support 11. When the gas to be processed is introduced into the casing 10 in this state, the gas to be processed is orthogonal to the module group 20B from the rail support 13 side (upstream side) to the module support 11 (downstream side). Flows in the direction and enters the inside of the module support 11. The gas to be treated is deodorized by the photocatalytic filter 30 inside the module group 20B while passing through the module group 20B. The treated gas deodorized in this way is discharged to the outside of the casing 10 through the duct 17 and the gas discharge port 16.

  During maintenance, the introduction of the gas to be processed into the casing 10 is stopped. An operator enters the casing 10 through a door (not shown) provided on one side wall of the casing 10 and performs maintenance work on the photocatalytic filter module 20. At this time, as shown in FIGS. 2 and 9, the required number of photocatalyst filter modules 20 from the photocatalyst filter module group 20B are directed toward the standby space S1 (in other words, upstream in the gas flow direction). Translation is performed to form a necessary maintenance space S2.

  First, when inspecting the module 20 at the gas introduction end (position closest to the rail support 13) in the module group 20B, the translational movement of the module 20 is not necessarily required. That is, when an operator performs maintenance work of this module 20 from the gas introduction end side, the module group 20B may be kept in the same state as during operation (see FIG. 8). At this time, the standby space S1 is used as the work space S2. When the operator performs maintenance work of the module 20 from the gas discharge end side, the module 20 is manually translated along the guide rail 12 to the upstream side, and the standby space S1 is moved. It is necessary to put in temporarily.

  When performing maintenance work on the modules 20 other than the module 20 at the gas introduction end, the operator should manually perform the maintenance work in the module group 20B (maintenance target) as necessary. It is necessary to translate at least one module 20 upstream of the upstream side. Since the maintenance work for the modules 20 other than the module 20 at the gas introduction end is the same, here, as shown in FIG. 9, the module 20 to be maintained is 3 from the upstream side in the module group 20B. A case where the maintenance work of the module 20 is performed from the upstream side of the module 20 will be described (this is because the module 20 to be maintained is the second module from the upstream side in the module group 20B). The same applies to the module 20 that is accessed from the downstream side of the maintenance work of the module 20).

  An operator manually moves the two modules 20 on the upstream side of the maintenance target module 20 along the guide rails 12 toward the upstream side and places them in the standby space S1. Then, as shown in FIG. 9, since a maintenance space S2 is formed in the vicinity of the upstream side of the module 20 to be maintained, the maintenance operation (for example, by accessing from the upstream side of the module 20 using the space S2) The photocatalyst filter 30 is inspected / cleaned / replaced, and the black light 27 is inspected / replaced). In this state, it is possible to access the adjacent module 20 on the upstream side of the module 20 to be maintained from the downstream side and perform maintenance work (for example, inspection from the back side of the photocatalytic filter 30).

  Maintenance work for other modules 20 is performed in the same manner.

  In this way, when the maintenance work is completed for all the modules 20 in the module group 20B, the operator removes all the modules 20 placed in the standby space S1 along the guide rails 12 (on the module support 11). Side) to return to the operating state shown in FIG. Then, after exiting the casing 10 from the door, the door is closed. Thereafter, the operation is resumed as necessary.

  As described above, in the photocatalyst deodorizing apparatus 1 according to the first embodiment of the present invention, the substantially flat photocatalytic filter module 20 including the photocatalytic filter 30 and the black light 27 for activating the photocatalytic filter 30 is provided. There are provided five photocatalyst filter module groups 20B which are arranged adjacent to each other perpendicular to the gas flow direction, and are provided with two guide rails 12 and each module 20 and both guides. The engaging member 24 engaged with the rail 12, the rotating shaft 25 and the pulley 26 mounted on the engaging member 24 make the modules 20 independent in the gas flow direction (extending direction of the guide rail 12). The “module support structure” is configured to support in a state where translational movement is possible. Further, a standby space S1 is formed on the gas introduction end side (upstream side in the gas flow direction) of the module group 20B, and from the module group 20B along the gas flow direction (guide rail 12) as necessary. The necessary maintenance space S2 is formed by translating the necessary number of modules 20 to the standby space S1.

  For this reason, when performing maintenance work such as inspection, replacement, and cleaning for the photocatalytic filter 30 and the black light 27 included in any one of the modules 20B in the module group 20B, the gas flow direction is determined as necessary. By moving the required number of modules 20 from the module group 20B to the standby space S1 along the (guide rail 12), the maintenance space S2 can be formed in the vicinity of the module 20 to be maintained.

  However, when the maintenance target module 20 is at the position closest to the standby space S1 (gas introduction end), it is not always necessary to translate the module 20 into the standby space S1. This is because the maintenance work may be performed using the standby space S1 as the maintenance space S2.

  Each of the modules 20 includes a photocatalytic filter 30 and a black light 27, and the photocatalytic filter unit and the light source unit (for example, those incorporated in the photocatalytic deodorizing device disclosed in Patent Document 2) are integrated. Therefore, as long as the gas introduction end side or the gas discharge end side of the maintenance target module 20 can be accessed from the maintenance space S1 or the standby space S2, both the photocatalytic filter 30 and the black light 27 are provided. The module 20 at the position closest to the standby space S1 (gas introduction end) where maintenance work can be performed is the same as the other modules 20 except that the black light 27 is not mounted. Therefore, this module 20 also has a photocatalytic filter unit and light. It can be said to have a configuration with an integrated unit).

  Furthermore, the translational movement of the module 20 having a configuration in which the photocatalyst filter unit and the light source unit are integrated is performed in the gas flow direction orthogonal to the modules 20, so that the photocatalyst filter unit and the light source unit are installed by the operator. Even when the size is increased to such an extent that it cannot be easily moved manually, as compared with the case where the module 20 can be inserted / removed in a direction parallel to the module 20 as in the photocatalyst deodorization apparatus disclosed in Patent Document 2, it can be easily handled. It is.

  On the other hand, the module support structure only needs to support the modules 20 in the module group 20B in a state in which they can be independently translated in the gas flow direction. Therefore, as in the first embodiment, the modules 20 are individually supported. By being engaged with the guide rail 12 and being movable along the guide rail 12, a simple structure and low cost can be realized. Further, since the pulley 26 is used together with the guide rail 12, the module support structure has a simple structure even when the photocatalytic filter unit or the light source unit is enlarged to such an extent that the operator cannot easily move it manually. And it can be realized at low cost.

  Therefore, in the photocatalyst deodorizing apparatus 1 according to the first embodiment of the present invention, even when the photocatalyst filter unit or the light source unit is enlarged to such an extent that the operator cannot easily move it manually, Maintenance work such as inspection, cleaning, and replacement can be easily performed, and the structure is simple and can be realized at low cost.

  In particular, in the photocatalyst deodorizing apparatus 1 of the first embodiment, the guide rail 12 as the guide member is used together with the pulley 26 as the rolling element, so that the module 20 can be easily translated with a small force. Therefore, even when the module 20 is enlarged to such an extent that the operator cannot easily move it manually, the operator can perform maintenance work such as inspection, cleaning, and replacement of the photocatalytic filter 30 or the black light 27 alone. The effect of is also obtained.

  In the photocatalyst deodorizing apparatus 1 of the first embodiment, the photocatalyst filter module 20 other than the one at the most upstream position (gas introduction end) in the photocatalyst filter / module group 20B includes a photocatalyst filter 30 and a photocatalyst filter 30, respectively. A black light 27 is attached. Since the modules 20 in the module group 20B are superposed on each other during operation, the black light 27 of the module 20 at the most downstream position (gas discharge end) is connected to the photocatalytic filter 30 of the module 20 and the module 20 Ultraviolet light is irradiated to the photocatalytic filter 30 of the module 20 on the more upstream side. The black light 27 of the module 20 that is one upstream from the most downstream position irradiates the photocatalytic filter 30 of the module 20 and the photocatalytic filter 30 of the module 20 that is one upstream of the module 20 with ultraviolet light. . The black light 27 of the module 20 that is two upstream from the most downstream position irradiates the photocatalytic filter 30 of the module 20 and the photocatalytic filter 30 of the module 20 that is one upstream of the module 20 with ultraviolet light. . The black light 27 of the module 20 that is three upstream from the most downstream position irradiates the photocatalytic filter 30 of the module 20 and the photocatalytic filter 30 of the module 20 that is one upstream of the module 20 with ultraviolet light. .

  Thus, in the modules 20 belonging to the photocatalytic filter / module group 20A, the ultraviolet light emitted from the black light 27 in one module 20 is irradiated to the photocatalytic filters 30 on both sides of the black light 27. Therefore, ultraviolet light can be used effectively.

  On the other hand, unlike the other modules 20, only the photocatalytic filter 30 is attached to the module 20 at the most upstream position (gas introduction end) in the photocatalyst filter / module group 20B, and the black light 27 is attached. It has not been. (The configuration of the module 20 at the gas introduction end is the same as that of the other modules 20 except that the black light 27 is not mounted.) This is because the black light 27 mounted on the module 20 is This is because the module 20 is arranged on the upstream side of the photocatalytic filter 30 and is exposed to the outside on the upstream side of the module group 20B, and the ultraviolet light emitted from these black lights 27 cannot be used effectively. .

  In the module 20 other than the most upstream position (gas introduction end) in the module group 20B, since there is no such difficulty, both the photocatalytic filter 30 and the black light 27 are mounted in consideration of the irradiation efficiency of ultraviolet light. Has been.

  Therefore, when it is not necessary to consider the advantage of effective use of ultraviolet light as described above with respect to the module 20 at the most upstream position (gas introduction end) in the photocatalytic filter module group 20B, The black light 27 may be mounted, or the module 20 itself may be removed if there is no problem with the deodorizing effect.

  In the former case (the black light 27 is also mounted on the module 20 at the most upstream position in the module group 20B), the five modules 20 constituting the photocatalyst filter / module group 20B provided in the photocatalyst deodorizing apparatus 1 are included. , All include the photocatalytic filter 30 and the black light 27, and all the modules 20 have the same configuration.

  In the latter case (the module 20 at the most upstream position in the module group 20B is omitted), the photocatalyst deodorizing apparatus 1 is provided with four modules 20 constituting the photocatalytic filter / module group 20A. As in the former case, all of the four modules 20 include the photocatalytic filter 30 and the black light 27, and all the modules 20 have the same configuration.

(Photocatalyst deodorization apparatus of 2nd Embodiment)
FIG. 11 and FIG. 12 show an outline of the entire configuration of the photocatalytic deodorizing apparatus 1A according to the second embodiment of the present invention.

  The configuration of the photocatalyst deodorizing apparatus 1A of the second embodiment is provided with a removable door 10Aa on the opposite side of the module support 11 of the casing 10A for space saving, and the door 10Aa is removed during maintenance, It is the same as that of the photocatalyst deodorizing apparatus 1 according to the first embodiment described above, except that the space for maintenance S2 is generated using a space (passage or the like) outside the casing 10A. Therefore, the same code | symbol as the photocatalyst deodorizing apparatus 1 which concerns on 1st Embodiment is attached | subjected to the part and element with the same structure, and the description is abbreviate | omitted.

  The state during operation of the photocatalyst deodorization apparatus 1A of the second embodiment is as shown in FIG. 11, except that the standby space S1 does not exist inside the casing 10A, and the photocatalyst deodorization according to the first embodiment. It is the same as that of the device 1. That is, the length in the gas flow direction of the casing 10A is only slightly larger than the sum of the lengths in the same direction of the module support 11 and the five photocatalytic filter modules 20 (photocatalytic filter module group 20B). 10Aa is provided close to the module 20 at the most upstream position (gas introduction end). For this reason, compared with the photocatalyst deodorizing apparatus 1 of the first embodiment, the space is saved by the standby space S1.

  During maintenance, work as follows.

  First, the door 10Aa of the casing 10A is removed. Then, since the portion where the door 10Aa was located opens, as shown in FIG. 23, one end of the auxiliary guide rail 37 is connected to the upstream end of the guide rail 12, and the other end is supported by the auxiliary rail support 36. . The auxiliary rail support 36 is installed at an appropriate location in a space adjacent to and adjacent to the portion where the door 10Aa is attached. The auxiliary guide rail 37 protrudes in the horizontal direction from an opening generated in a portion where the door 10Aa is attached. The configuration of the auxiliary guide rail 37 is the same as the configuration of the guide rail 12.

  When the maintenance target module 20 is the third module 20 from the downstream side in the module group 20B, the operator manually moves the two modules 20 upstream of the module 20 to the upstream side (casing 10A). Translation) toward the outside. At this time, these two modules 20 are located outside the casing 10A as shown in FIG. As a result of this translational movement, a maintenance space S2 is formed in the vicinity of the upstream side of the module 20 to be inspected, as in the first embodiment. Therefore, maintenance work (for example, the photocatalytic filter 30 of the photocatalytic filter 30) is made using the maintenance space S2. Inspection / replacement and inspection / replacement of the black light 27). In this state, it is possible to access the adjacent module 20 on the upstream side of the maintenance target module 20 from the downstream side (back side) and perform maintenance work (for example, inspection of the photocatalytic filter 30).

  When the maintenance work is completed, the door 10Aa is reattached to the corresponding part of the casing 10A, and the opening is closed and sealed. Thereafter, the operation of the photocatalyst deodorization apparatus 1A is started.

  As described above, the photocatalyst deodorizing apparatus 1A of the second embodiment is provided with the removable door 10Aa on the opposite side of the module support 11 of the casing 10A, and the door 10Aa is removed during maintenance to remove the casing 10A. Since it is the same as that of the photocatalyst deodorizing apparatus 1 according to the first embodiment described above except that the space S2 for maintenance is generated by using the space (passage etc.) on the outside, the first implementation In addition to the same effect as the photocatalyst deodorizing apparatus 1 according to the embodiment, there is an effect that space saving can be achieved by the amount corresponding to the standby space S1 existing inside the casing 10 in the first embodiment.

(Modification)
The embodiments described above show examples embodying the present invention. Accordingly, the present invention is not limited to these embodiments, and it goes without saying that various modifications can be made without departing from the spirit of the present invention.

For example, in the above-described embodiment, the black light 27 is used as a light source for activating the photocatalytic filter 30, but it goes without saying that a light source other than the black light 27 may be used. Further, the photocatalytic filter 23 formed by coating porous ceramic with titanium oxide (TiSO ₂ ) is used. However, a photocatalyst other than titanium oxide may be used, and the base of the photocatalytic filter 23 is not porous ceramic. Needless to say, it may be formed of any material.

  In the above-described embodiment, the photocatalyst filter module 20 is suspended by the two guide rails 12 provided at the upper level, but the present invention is not limited to this. The guide rails 12 may be provided not only on the upper side but also on the lower side of the photocatalytic filter module 20. In this way, the module support structure is a little more complicated than the above embodiment, but there is an advantage that the translational movement of the module 20 is stabilized. The position at which the guide rail 12 is engaged with the module 20 and the number of the guide rails 12 can be arbitrarily changed.

  The position where the guide rail 12 and the photocatalytic filter module 20 are engaged may be changed to other than the upper part of the module 20 (for example, the lower part of the module 20, the side face, etc.).

  The shape and configuration of the photocatalytic filter module 20 are also arbitrary. The entire structure is substantially flat and can be arranged adjacent to each other almost perpendicular to the gas flow direction. The photocatalytic filter is mounted (photocatalytic filter mounting structure) and the photocatalytic filter is activated. It is sufficient if it includes a member (light source mounting member) such as a connector for mounting a light source for the purpose, and its shape and configuration are not limited.

  In the embodiment described above, the plurality of photocatalytic filter modules 20 and the module support structure are installed inside the casing 10 or 10A, but the present invention is not limited to this. For example, a partition wall (having an opening through which the gas to be processed passes) that partitions the primary side space to which the gas to be processed is supplied and the secondary space to which the gas to be processed after processing is sent out is used as the module support 11. While being used, the plurality of photocatalytic filter modules 20 and the module support structure may be arranged in the primary side space or the secondary side space. In this case, the gas to be treated is caused to flow from the primary side space to the secondary side space through the opening of the partition wall.

DESCRIPTION OF SYMBOLS 1, 1A Photocatalyst deodorizing apparatus 10, 10A Casing 10Aa Casing door 11 Module support body 12 Guide rail 13 Rail support body 14, 14A Base 15 Gas introduction port 16 Gas discharge port 17 Duct 20 Photocatalyst filter module 20A Photocatalyst filter module group 20B Photocatalyst filter / module group 21 Module body 22 Filter frame 23 Photocatalyst filter mounting window 24 Engaging member 25 Rotating shaft 26 Pulley 27 Black light 28 Connector 30 Photocatalyst filter 36 Auxiliary rail support 37 Auxiliary guide rail S1 Standby space S2 Maintenance space

Claims (9)

A first photocatalyst filter comprising a plurality of substantially flat photocatalyst filter modules including a photocatalyst filter and a light source for activating the photocatalyst filter and arranged adjacent to each other substantially orthogonal to the gas flow direction A group of modules;
A module support structure that supports a plurality of the photocatalyst filter modules of the first photocatalyst filter module group in a state where independent translational movement in the gas flow direction is possible;
A standby space is formed on the gas introduction end side or gas discharge end side of the first photocatalytic filter / module group,
If necessary, a necessary maintenance space is formed by translating a required number of the photocatalyst filter modules from the first photocatalyst filter module group to the standby space along the gas flow direction. A photocatalyst device characterized in that: The module support structure is
A guide member extending along the gas flow direction;
The photocatalyst device according to claim 1, further comprising an engaging member fixed to each of the plurality of photocatalytic filter modules and engaged with the guide member so as to be capable of translational movement. The guide member is fixed in a substantially horizontal direction;
The photocatalytic device according to claim 2, wherein each of the photocatalytic filter modules is supported in a state of being suspended from the guide member by the engaging member.   The photocatalyst device according to claim 2 or 3, wherein a rolling means that rolls in contact with the guide member or the engagement member is attached to the engagement member or the guide member. The guide member is bridged between a first support and a second support installed at both ends thereof,
The said 1st photocatalyst filter module group is hold | maintained in the state which contacted the said 1st support body, The said waiting space is formed in the said 2nd support body side, In any one of Claims 2-4 The photocatalyst apparatus as described.   The photocatalyst device according to claim 1, wherein the first photocatalyst filter module group and the standby space are provided inside a casing. The first photocatalytic filter / module group is provided inside the casing, and the waiting space is provided outside the casing,
An openable / closable portion is formed at a location facing the standby space of the casing, and a required number of the photocatalytic filter modules are translated into the standby space via the opened openable / closable portion during maintenance. The photocatalytic device according to any one of claims 1 to 5, which is movable. Each of the photocatalytic filter modules is
A module body having an opening through which a gas to be treated is permeated;
A filter frame fixed to the module body and having a window for mounting the photocatalytic filter at a position overlapping the opening;
The photocatalyst apparatus of any one of Claims 1-7 including the light source mounting member fixed to the said module main body or the said filter frame so that the said light source may be arrange | positioned in the position which overlaps with the said window.   Further, the photocatalytic filter module including the photocatalytic filter and not including the light source, which is installed adjacent to the gas introduction end side or the gas discharge end side of the first photocatalytic filter module group, The photocatalyst device according to claim 1, wherein the photocatalyst filter module and the first photocatalyst filter module group constitute a second photocatalyst filter module group.

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