JP6018150B2 - Particulate matter collector - Google Patents

Description

  The present invention relates to a particulate matter collecting apparatus.

  When atmospheric suspended salt such as sea salt particles contained in the atmosphere adheres to a structure containing a metal, an alloy or the like (hereinafter referred to as a metal), it causes corrosion of the metal or the like. For this reason, in order to evaluate the corrosivity caused by the atmospheric environment, the degree of adhesion of airborne salt to the structure is measured. As a method for measuring the degree of adhesion of airborne salinity, there is a method for collecting airborne salt by exposing gauze wound around a cylindrical support (gauze holder) having air permeability to the atmosphere for a predetermined period (for example, Patent Document 1).

International Publication No. 2014/049716

  However, in the method described in Patent Document 1, it was necessary to perform an exchanging operation of removing the gauze from the support and winding a new gauze around the support in a continuous investigation exceeding a predetermined period. Further, in order to fix the gauze to the support, it is necessary to bind the gauze to the support with a thread or the like, and thus it is necessary to cut the thread or the like when the gauze is removed. As described above, in the method described in Patent Document 1, the work related to repeated measurement is complicated. Moreover, the place where the gauze exposed to the atmosphere is installed is often higher than the height of a general human. For this reason, the replacement | exchange operation | work of the gauze in the place which concerns is very complicated.

  Therefore, an object of the present invention is to provide a particulate matter collecting apparatus in which work related to replacement of a member for collecting atmospheric suspended salt is simpler.

  In order to solve the above-described problems and achieve the object, the particulate matter collection device of the present invention is a collection portion that is an elastic body and a porous body that attaches and collects particulate matter contained in the atmosphere. And a holding unit that holds the collecting unit in a state of being exposed to the atmosphere.

  As a desirable mode of the present invention, it is provided with a storage part which is provided under the above-mentioned collection part exposed in the atmosphere, and stores the liquid and solid which fell from the collection part.

  As a desirable mode of the present invention, it is provided with a lid provided above the collection unit exposed to the atmosphere, and the storage unit and the lid are provided so as to be switchable between a combined state and a separated state, When in the combined state, the collecting portion is housed in a housing formed by the storage portion and the lid portion.

  As a desirable mode of the present invention, the case stores the collecting part in a compressed state.

  As a desirable mode of the present invention, it has a box having a roof and an opening for ventilation provided on the side, and the collecting part is held in the box.

  As a desirable mode of the present invention, the box has a louver on the side.

  According to the present invention, work related to replacement of a member that collects atmospheric suspended salt becomes simpler.

FIG. 1 is a perspective view showing an example of a particulate matter collecting apparatus according to the present embodiment. FIG. 2 is a diagram illustrating an example of the structure of the particulate matter collection device according to the present embodiment. FIG. 3 is a perspective view showing an example of the configuration inside the box. FIG. 4 is a schematic diagram illustrating an example of the combination of the storage portion and the lid portion. FIG. 5 is a schematic diagram illustrating an example of the combination of the storage portion and the lid portion. FIG. 6 is a diagram illustrating an example of a columnar building to which a box is attached.

  Next, a mode for carrying out the present invention (hereinafter referred to as the present embodiment) will be described in detail with reference to the drawings. FIG. 1 is a perspective view showing an example of a particulate matter collecting apparatus 1 according to the present embodiment. FIG. 2 is a diagram illustrating an example of the structure of the particulate matter collection device 1 according to the present embodiment. The particulate matter collection device 1 according to this embodiment includes a collection unit 10, a holding unit, a storage unit 30, a lid unit 40, and a box 50.

  FIG. 3 is a perspective view showing an example of the configuration inside the box 50. The collection unit 10 collects particulate matter contained in the atmosphere by attaching it. Specifically, the collection part 10 is an elastic body and a porous body that attach and collect particulate matter contained in the atmosphere. The collection part 10 consists of sponges, for example. More specifically, the sponge constituting the collection unit 10 is a so-called synthetic sponge in which a synthetic resin such as polyurethane is formed by foaming. The sponge is a porous body and exhibits air permeability and moisture absorption. It is desirable that the fineness of the sponge (the degree of foaming at the time of foam formation) depends on the size of the particulate matter to be collected (for example, atmospheric suspended salt such as sea salt particles). . The sponge which comprises the collection part 10 is an elastic body. For this reason, the collection part 10 is compressed by being pressed from the outside, the apparent volume is reduced, and becomes a size that fits in a smaller space. On the other hand, when the pressure from the outside is lost, the size before compression is restored.

  A holding part hold | maintains in the state which exposes the collection part 10 to air | atmosphere. Specifically, the holding portion includes, for example, a shaft 21 that is a rod-shaped member, and two locking portions 22 and 23 that lock both ends of the shaft 21. The shaft 21 is provided so as to penetrate the collection unit 10 in a state of substantially overlapping the cylindrical central axis of the collection unit 10. At both ends of the cylinder of the collecting unit 10, for example, there are sponge end portions 11 provided with holes corresponding to the diameter of the shaft 21, and the shaft 21 is inserted through the holes of the end portion 11. The cylindrical sponge of the collection part 10 and the sponge of the end part 11 may be integrally formed, or may be bonded with an adhesive double-sided tape or the like. The two locking portions 22 and 23 are provided in the vertical direction in a positional relationship having an interval corresponding to the length of the shaft 21 so that the shaft 21 is provided vertically, for example. The cylindrical catching part 10 is provided so that the central axis of the cylinder is vertical by the two catching parts 22 and 23 being latched by the shaft 21 to which the catching part 10 is attached. The two locking portions 22 and 23 are, for example, a locking portion 22 having a hole into which the shaft 21 can be inserted, and the other having a plate-like member 23a and a rotating member 23b. It is the latching | locking part 23 which has a mechanism in which the shaft 21 which approached into the notch part 23c formed in the member 23a is hold | maintained by the rotation member 23b. The notch 23c is provided, for example, from the side of the horizontally provided plate-like member 23a toward the inside, and has a width corresponding to the diameter of the shaft 21. The plate-like member 23a provided with the notch 23c can enter or remove the shaft 21 from the side. The rotating member 23b is supported so as to be rotatable about the fulcrum 23d on one surface side of the plate-like member 23a, and rotates so as to switch between opening and closing of the entrance side of the notch 23c. The specific form of the two engaging portions 22 and 23 is merely an example and is not limited to this, and can be changed as appropriate.

  The storage unit 30 is provided below the collection unit 10 exposed to the atmosphere and stores the liquid and solid dropped from the collection unit 10. Specifically, the storage unit 30 is a container-like member having an open top that can store, for example, liquid and solid that have dropped from above. More specifically, the storage unit 30 includes, for example, a cylindrical side wall 31 having a diameter larger than the diameter of the cylinder of the collection unit 10, and a bottom unit 32 that closes one end (lower end) of the cylinder formed by the side wall 31. Have The reservoir 30 receives the liquid, solid, or both falling from above at the bottom 32 and prevents leakage to the outside by the side wall 31.

  The lid 40 is provided above the collection unit 10 exposed to the atmosphere. Specifically, the lid 40 includes, for example, a cylindrical side wall 41 having a diameter larger than the diameter of the cylinder of the collection unit 10 and a ceiling 42 that closes one end (upper end) of the cylinder formed by the side wall 41. Have.

  4 and 5 are schematic views showing an example of the combination of the storage unit 30 and the lid unit 40. FIG. The storage unit 30 and the lid unit 40 are provided so as to be switchable between a combined state and a separated state, and when the combined unit is in the combined state, the collecting unit 10 is housed in a housing formed by the storage unit 30 and the cover unit 40. Specifically, one of the storage part 30 and the lid part 40 (for example, the storage part 30) has a spiral protrusion on the outer peripheral surface of the side wall 31. The protrusion on the outer peripheral surface provided on one side functions as a male screw. The other of the storage unit 30 and the lid part 40 (for example, the lid part 40) has a spiral groove on the inner peripheral surface of the side wall 41. The groove on the inner peripheral surface provided on the other side functions as a female screw for the male screw provided on one side. That is, the storage portion 30 and the lid portion 40 are combined with each other when the side walls 31 and 41 are screwed together, and the side walls 31 and 41 of the storage portion 30 and the lid portion 40, and the bottom portion 32 and the lid portion of the storage portion 30. The housing | casing covered with the ceiling part 42 of 40 is formed. The housing formed by the storage unit 30 and the lid unit 40 can accommodate the collection unit 10 by bringing the storage unit 30 and the lid unit 40 into a combined state with the collection unit 10 interposed therebetween. . In addition, the housing | casing formed by the storage part 30 and the cover part 40 of this embodiment accommodates the collection part 10 in the compressed state (refer FIG. 4, FIG. 5). It is possible to prevent the collecting unit 10 from being compressed by allowing the space in the housing to be formed to have a size capable of accommodating the collecting unit 10 without compressing the collecting unit 10. Specifically, for example, if the standing length with respect to the bottom 32 of the side wall of the housing is equal to or longer than the cylindrical length of the collecting unit 10, the collecting unit 10 can be prevented from being compressed.

  It is desirable that the storage unit 30 and the lid unit 40 be provided at positions where the side walls 31 and 41 do not shield the side of the collection unit 10 exposed to the atmosphere. Moreover, the shape of the storage part 30 and the cover part 40 is arbitrary. For example, the storage unit 30 and the lid unit 40 may have a shape in which a capsule forming a spherical outer peripheral surface is divided into two. In addition, the storage part 30 shall be a shape which can store the liquid and solid which have fallen from upper direction. Specifically, the storage unit 30 has an open state on the upper side and a shape in which the inner side is recessed toward a container shape or a lower side.

  At least one of the storage unit 30 and the lid unit 40 forming the housing is provided so as to be movable along the shaft 21. In this embodiment, the storage part 30 and the cover part 40 are provided so that removal from the shaft 21 is possible. That is, the storage unit 30 and the lid unit 40 have holes that are in sliding contact with the shaft 21. In this case, when collecting the collection unit 10 that has been exposed to the atmosphere, for example, after removing the collection unit 10, the storage unit 30 and the lid 40 together with the shaft 21, from the two locking portions 22,23, The collection unit 10, the storage unit 30 and the lid unit 40 together with the shaft 21 are put in a bag that does not leak the contents, the shaft 21 is removed inside the bag and the shaft 21 is taken out of the bag, and then the storage unit 30 and the inside of the bag. The cover part 40 is united and the bag is sealed. By doing in this way, the collection part 10 after collection | recovery can be shrunk | recovered and reduced to the size of the housing | casing formed by the storage part 30 and the cover part 40. FIG. Instead of sealing with a bag, the hole after the shaft 21 is removed may be closed by taping or the like. Further, in the case where the storage unit 30 clearly stores liquid fallen objects or the like, when a part of the collection target due to the liquid adhering to the shaft 21 is expected to be scattered, the entire shaft 21 and the inside of the bag You may make it seal to.

  The box 50 accommodates the collection part 10 inside. Specifically, the box body 50 has, for example, a rectangular parallelepiped shape having a roof portion 51, a bottom portion 52, and four side surface portions 53. The box 50 has a hollow inside, and is provided so that the collection unit 10 can be stored therein. In the present embodiment, one of the two locking portions 22 and 23 that locks the upper side of the shaft 21 is fixed to the roof portion 51 side in the box 50. The other of the two locking portions 22 and 23 that locks below the shaft 21 is fixed to the bottom 52 side in the box 50.

  The box 50 is provided with an opening for ventilation on the side. Specifically, the box 50 has a louver on the side, for example. More specifically, each of the four side surface parts 53 of the box body 50 is provided such that a plurality of blades 53a are parallel to each other with an interval in the vertical direction. The box 50 is provided so that air (wind) outside the box 50 can be passed through the gap 50 between the slats 53a functioning as an opening.

  The slat 53a is provided so as to incline downward from the inside of the box 50 toward the outside. Thereby, falling objects, such as rain, can suppress entering the inside of the box 50 from an opening part. Further, the roof portion 51 is provided so as to protrude outward from the side surface portion 53 of the box body 50. Thereby, it can suppress more reliably that fallen objects, such as rain, pour into the collection part 10. FIG. The box 50 is a so-called hundred-leaf box.

  FIG. 6 is a diagram illustrating an example of a columnar building 60 to which the box body 50 is attached. It is desirable that the box 50 be provided so that the collecting unit 10 can be introduced from the outside to the inside and the collecting unit 10 held on the inside can be taken out. In the present embodiment, one of the four side portions 53 of the box 50 is an armor door and is provided so as to be openable and closable. The armor door is desirably provided on the opposite side (for example, the north side in the case of the northern hemisphere) of the direction passing the meridian above the horizon in the diurnal motion of the sun (for example, the south side in the case of the northern hemisphere). Further, in the example shown in FIG. 6, an operator who installs and collects the collection unit 10 by climbing the columnar building 60 by placing the armor door on the columnar building 60 (for example, a utility pole) side. It becomes easy to work.

  As mentioned above, according to this embodiment, the collection part 10 is an elastic body and a porous body. For this reason, unlike gauze used for collection, there is no need to wrap around another member (support) in order to maintain a shape (for example, a cylindrical shape) suitable for collecting atmospheric suspended salt. Therefore, the collection part 10 can be installed and replaced more easily. Thus, according to this embodiment, the operation | work which concerns on replacement | exchange of the member which collects atmospheric suspended salt becomes simpler.

  Moreover, the storage part 30 provided in the downward direction of the collection part 10 exposed to air | atmosphere and which stores the liquid and solid which fell from the collection part 10 is provided. For this reason, after adhering to the collection part 10, the air | atmosphere suspended salt which fell from the collection part 10 can be stored. Therefore, by collecting the liquid and solid stored in the storage unit 30 when the collection unit 10 is collected, the total amount of atmospheric suspended salt collected by the collection unit 10 can be grasped with higher accuracy. become.

  Moreover, the storage part 30 and the cover part 40 accommodate the collection part 10 in the housing | casing formed of the storage part 30 and the cover part 40, when it is a united state. For this reason, the collection part 10 can be protected by the said housing | casing at the time of collection | recovery of the collection part 10. FIG. Therefore, it is possible to further suppress the spillage of airborne salt collected by the collection unit 10. Moreover, handling of the collection part 10 after collection | recovery becomes easier.

  Moreover, a housing | casing accommodates the collection part 10 in the compressed state. For this reason, since the size of the housing for storing the collection unit 10 after collection becomes smaller, the housing can be handled more easily.

  The collection unit 10 is held in the box 50. For this reason, it is possible to prevent a fallout such as rain from falling on the collection unit 10.

  The box body 50 has a louver on the side. For this reason, it is possible to more reliably achieve both air permeability into the box 50 and suppression of falling items such as rain falling on the collecting unit 10 in the box 50.

  Moreover, when the collection part 10 has a cylindrical shape, it can collect | recover the air | atmosphere salt which comes on a wind etc. from more directions which cross | intersect the central axis of a cylinder more uniformly. Further, in the configuration described in Patent Document 1, since the support is a dedicated part, a dedicated manufacturing operation such as the use of a 3D printer is required, and the manufacturing cost is high. On the other hand, according to this embodiment, since it is sufficient to use an inexpensive sponge, it is possible to collect particulate matter at a lower cost. Moreover, the collection part 10 can be reused by washing | cleaning the collection part 10 after collection | recovery.

  As mentioned above, although embodiment was described, this invention is not limited by the content of these embodiment. In addition, the above-described constituent elements include those that can be easily assumed by those skilled in the art, those that are substantially the same, and those in a so-called equivalent range. Furthermore, the above-described components can be appropriately combined. Furthermore, various omissions, substitutions, or changes of the constituent elements can be made without departing from the spirit of the above-described embodiments and the like.

  For example, in the above embodiment, the holding part holds the collection part 10 by the shaft 21 and the two locking parts 22 and 23. This is an example of a specific form of the holding part. It is not limited and can be changed as appropriate. For example, a fiber, string, or cloth-like extending portion provided so as to extend from both ends of the cylinder of the collecting portion 10 is provided, and both ends of the extending portion are arranged on the ceiling side (for example, the roof portion 51 in the box 50). Or the like on the bottom surface 52 side (for example, the upper surface side of the bottom portion 52). Further, the extending portion is fixed to the upper surface side of the storage portion 30 and the lower surface side of the lid portion 40, the storage portion 30 is fastened to the bottom portion 52 side of the box body 50, and the lid portion 40 is placed on the ceiling side of the box body 50. You may make it stop. In this case, the housing formed by the storage portion 30 and the lid portion 40 can accommodate the collection portion 10 together with the extension portion, and there is a hole for the shaft 21 to penetrate the storage portion 30 and the lid portion 40. Since it is not necessary, the collection part 10 etc. can be accommodated in the sealed housing.

  The engagement between the reservoir 30 and the lid 40 may not be via a screw shape. For example, the protrusion provided in the outer peripheral surface side of any one cylindrical side wall (for example, side wall 31) among the storage part 30 or the cover part 40, and the inner peripheral surface of the other cylindrical side wall (for example, side wall 41) The shape may be in mesh with the recess provided on the side, or the specific shape is not particularly limited as long as the housing can be formed in contact with each other. Moreover, the cover part 40 is not essential. For example, the cylindrical collection unit 10 and the storage unit 30 may be collected together with the shaft 21.

  The cross-sectional shape of the cylinder formed by the collection unit 10 may not be circular. For example, it may be a polygon. Moreover, the shape of the collection part 10 is not restricted to a cylinder shape, It can change suitably. The collection unit 10 may be, for example, a cylindrical elastic body and a porous body, or may be an elastic body and a porous body having other shapes. Moreover, when it is a column shape, the hole for making the shaft 21 penetrate along the center axis | shaft may be provided.

  Moreover, the index which shows the direction in the period exposed to air | atmosphere may be attached | subjected to the collection part 10. FIG. For example, even if an index such as the center or center line (for example, a line along the extending direction of the cylinder) of the surface that should face the armor door side of the box 50 among the outer peripheral surface of the collection unit 10 is attached. Good. In this case, the operator can easily grasp which part is directed in which direction after the collection of the collection unit 10 by installing the collection unit 10 so that the index comes to the front. it can. In addition, the armor door is not essential. For example, the other part (the roof part 51 etc.) of the box 50 may be provided so that opening and closing is possible.

  Moreover, the collection part 10 can also collect other particulate matter which exists not only in air floating salt content, such as a sea salt particle | grain, but in air | atmosphere.

  The particulate matter collecting device 1 is not limited to the columnar building 60. The particulate matter collecting apparatus 1 can be provided in any structure that can face a breathable space such as a steel tower. Moreover, the particulate matter collection device 1 may be installed on the ground.

DESCRIPTION OF SYMBOLS 1 Particulate matter collection device 10 Collection part 21 Shaft (holding part)
22, 23 Locking part (holding part)
30 storage part 40 lid part 50 box 51 roof part 53 side part 53a slat

Claims (4)

A collection part that is an elastic body and a porous body for collecting particulate matter contained in the atmosphere and collecting it;
A holding unit for holding the collection unit in a state of being exposed to the atmosphere;
A storage unit that stores liquid and solids that are provided below the collection unit that is exposed to the atmosphere and falls from the collection unit;
A lid provided above the collection unit exposed to the atmosphere ,
The storage part and the lid part are provided so as to be able to switch between a combined state and a separated state, and in the combined state, particles that store the collection part in a housing formed by the storage part and the cover part Material collection device. The particulate matter collection device according to claim 1 , wherein the casing stores the collection unit in a compressed state. It has a box having a roof and an opening for ventilation provided on the side,
The collection portion, the particulate matter trapping device according to claim 1 or 2 is held by the box body. The particulate matter collection device according to claim 3 , wherein the box has a louver on the side.

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