JP5873740B2 - Anemostat filter, duct construction method and duct cleaning method - Google Patents

Description

  The present invention relates to an anemostat filter, a duct work method, and a duct cleaning method.

  Since air supply ducts cannot be stopped when there are people in the room, air conditioning ducts such as buildings are often renovated on holidays when there are no people in the room. If the construction does not end on the first holiday, air conditioning must be performed as usual on weekdays until the end of the construction.

  In renovation work for air conditioning ducts in buildings, etc., it is necessary to prevent dust in the ducts from coming out of the anemostat. In addition, after completion of the duct renovation work, dust etc. separated from the duct due to duct chips and construction vibrations remain in the duct. May blow out from the anemostat. For this reason, it is necessary to collect dust and the like while continuing air blowing on weekdays after construction on a holiday.

  In order to prevent such dust and the like, air filters (for example, see Patent Document 1) and work scaffolds (for example, see Patent Document 2) have been developed. However, the air filter described in Patent Document 1 is not for an anemostat, and there is a problem that airflow cannot be diffused when the air filter is attached to the anemostat. In addition, since the work scaffold described in Patent Document 2 is a large scale, when it is necessary to install it in several tens of anemostats at a time in a large building or the like, the number of the scaffolds is arranged or installed. There was a problem that it was difficult. Moreover, since there is a possibility that dust and the like may blow out from the anemostat during the construction period and after the construction is completed, there is a problem that the work scaffold cannot be removed even on weekdays, which is an obstacle.

  Therefore, in order to solve these problems, as shown in FIG. 5, the roll filter is cut into an appropriate size such as a square or a circle on the spot, and the cut filter 51 is attached to the ceiling 1 by an anemostat 2. A method of pasting the inner cone 5 inside the neck tube 4a of the outer cone 4 with a curing tape 52 without any gap is conceivable. In this case, while preventing dust from the anemostat 2 during construction, and keeping it attached for a while after the construction, the dust blown out from the anemostat 3 while continuing to blow on weekdays. It can be collected with prevention.

JP 2000-320886 A JP-A-11-210221

  However, when the curing method shown in FIG. 5 is adopted, the roll filter is cut and pasted at every place. Therefore, in a construction site where there are several tens of anemostats 2, a considerable amount of time is required for installation work. There is a problem that it takes. Moreover, since the operation | work which peels the curing tape 52 affixed on the used filter 51 is complicated, the used filter 51 was not reused and was discarded with the curing tape 52 stuck.

  Further, when the curing method shown in FIG. 5 is adopted, the curing tape 52 is gradually peeled off by the pressure of the supply air, and the duct passes through the gap formed between the filter 51 and the inside of the neck tube 4a of the outer cone 4. There is a risk that dust and the like inside may come out of the anemostat. Furthermore, the curing tape 52 may be peeled off, and the curing tape 52 and the filter 51 may fall from the anemostat. For this reason, in these cases, there is also a problem that repair work of the curing tape 52 is required.

  The present invention has been made paying attention to such problems, and it is an object of the present invention to provide a reusable filter for anemostat, a duct construction method, and a duct cleaning method that are easy to attach and detach and do not require repair. It is said.

In order to achieve the above object, an anemostat filter according to the present invention is connected to a duct and is detachably attached to the inside of a neck pipe of an outer cone on the duct side from an inner cone of an anemostat that supplies air. A filter for an anemostat for temporarily attaching and supplying air during the renovation work or cleaning of the inside of the duct to attach dust derived from the duct, the plate-like filter having the inner peripheral shape of the neck pipe The filter body on both sides of the filter body, comprising a body and a wire, and a reinforcing frame member provided around the filter body so as to maintain the shape of the filter body, and an inner wall of the neck tube It has a contact member which covers the peripheral part of the filter and the reinforcing frame member and is sewn to the peripheral part of the filter body together with the reinforcing frame member .

The anemostat filter according to the present invention is suitably used for repair work or cleaning of an air conditioning duct such as a building. The anemostat filter according to the present invention can prevent dust and the like from blowing out from the anemostat into the room by being attached to the inside of the neck tube on the duct side from the middle cone of the anemostat. Since it is attached simply by removing the inner cone of the anemostat and providing it inside the neck tube, the attachment work is easy and the attachment work time can be shortened. Moreover, it is easy to remove and can be reused.
The anemostat filter according to the present invention can be reliably attached by attaching the close contact member in close contact with the inner wall of the neck tube, and can more reliably capture dust or the like passing through the neck tube. The adhesive member is preferably a flexible urethane material.
The anemostat filter according to the present invention can prevent dust and the like from being blown out from a gap formed by a plate-like filter body having an inner peripheral shape of a neck tube and a reinforcing frame member. As the filter body, one capable of trapping dust in the air is used. For example, a filter for coarse dust made of a synthetic fiber nonwoven fabric and having a high collection rate is suitable.

The anemostat filter according to the present invention is preferably attached to the inside of the neck tube so as to be supported by the peripheral edge of the upper edge of the middle cone even when the air supply is performed. In this case, since it is supported by the periphery of the upper edge of the middle cone, there is no possibility of dropping off, and repair is not necessary.

The anemostat filter according to the present invention comprises a band-shaped member, and one end is sandwiched between the contact member and the filter main body so as to protrude indoors when attached to the inner wall of the neck tube. You may have the tab sewn on the said filter main body with the member. In this case, it is possible to facilitate removal from a state in which the contact member is in close contact with the inner wall of the neck tube .

The duct construction method according to the present invention stops the air supply to the anemostat connected to the duct, and the neck tube of the outer cone on the duct side from the middle cone of the anemostat, the anemostat filter according to the present invention After the detachable attachment, the duct is constructed.

The method for cleaning an inside of a duct according to the present invention stops the air supply to the anemostat connected to the duct, and the inside of the neck tube of the outer cone on the duct side from the middle cone of the anemostat, the anemostat according to the present invention. After the filter is detachably attached, the inside of the duct is cleaned, and after the internal cleaning, the air is supplied to the anemostat to attach dust in the duct to the anemostat filter, and after a predetermined time It is characterized by removing the filter.

The duct construction method and the duct cleaning method according to the present invention can prevent dust and the like coming out of the anemostat during construction or cleaning by the anemostat filter according to the present invention . Since the anemostat filter can be easily attached simply by fitting it inside the neck tube, the attaching operation is easy and the attaching operation time can be shortened. Also, the anemostat filter can be easily removed, and the anemostat filter can be reused. Further, since the anemostat filter is supported by the peripheral edge of the upper edge of the middle cone, there is no possibility of dropping off, and no repair of the anemostat filter is required.

In the duct construction method and the in-duct cleaning method according to the present invention, it is preferable that the anemostat filter according to the present invention is attached so as to be in close contact with the inner wall of the neck tube with the contact member. In this case, the anemostat filter can be reliably attached, and dust and the like passing through the neck tube can be captured more reliably. Moreover, it is possible to prevent dust and the like from being blown out through a gap formed around the shape.

In the duct construction method and the duct cleaning method according to the present invention, after completion of the duct construction or internal cleaning, air is supplied to the anemostat to adhere dust in the duct to the anemostat filter, It is preferable to remove the anemostat filter after a predetermined time. In this case, by supplying air to the anemostat, duct chips and dust remaining in the duct after completion of the construction or internal cleaning can be attached to the anemostat filter. Thereby, it is possible to prevent the dust or the like accompanying the construction or cleaning from blowing out into the room from the construction to the completion of the construction or from the cleaning to the completion of the cleaning. Anemo Stat filter is preferably removed by sure to allow moderation of dust does not remain almost in the duct. For example, duct work or cleaning on holidays, air conditioning is operated with the anemostat filter attached on weekdays after the holiday, and the anemostat filter is removed on the next holiday, so that it can be used for normal work on weekdays. Duct construction or cleaning can be performed without affecting the operation.

  ADVANTAGE OF THE INVENTION According to this invention, attachment / detachment work is easy and repair is unnecessary, and the filter for an anemostat which can be reused, a duct construction method, and the cleaning method in a duct can be provided.

It is a front view which shows the filter for an anemostat of embodiment of this invention. It is sectional drawing which shows the usage condition of the filter for anemostats of FIG. It is sectional drawing of the anemostat which shows the duct construction method and the cleaning method in a duct of embodiment of this invention. It is a side view inside a building which shows the duct construction method and the cleaning method in a duct of embodiment of this invention. It is sectional drawing which shows the attachment condition of the filter to the conventional anemostat.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 to FIG. 4 show an anemostat filter, a duct construction method and a duct cleaning method according to the embodiment of the present invention.
As shown in FIG. 1, the anemostat filter 10 has a disk shape and includes a filter main body 11, a reinforcing frame member 12, a close contact member 13, and a tab 14.

  The filter main body 11 is composed of a coarse dust filter made of a synthetic fiber nonwoven fabric having a thickness of about 5 mm, which has a high dust collection rate in the air, and has a disk shape. The reinforcing frame member 12 is made of a wire, and is attached along the peripheral edge of the filter body 11 so as to maintain the shape of the filter body 11. The adhesion member 13 is made of a urethane material having flexibility, and is attached along the periphery of the filter body 11. The close contact member 13 covers the peripheral edge of the filter main body 11 and the reinforcing frame member 12 on both sides of the filter main body 11, and is sewn to the peripheral edge of the filter main body 11 together with the reinforcing frame member 12.

  The tabs 14 are formed of a band-shaped member, and two or four tabs 14 are attached to one surface of the filter main body 11. Each tab 14 is disposed at an equally spaced position on the peripheral edge of the filter body 11, and one end is sandwiched between the contact member 13 and the filter body 11, and is sewn to the filter body 11 together with the contact member 13. .

  As shown in FIG. 2, the anemostat filter 10 can be attached to the anemostat 2 attached to the ceiling 1. In the anemostat 2, an outer cone 4 is connected to a duct 3 on the back of the ceiling, and an inner cone 5 is detachably attached to the inside of a neck tube 4a of the outer cone 4. The anemostat filter 10 has an outer shape slightly larger than the inner diameter of the neck tube 4a of the outer cone 4 of the anemostat 2 to be attached. The anemostat filter 10 is disposed inside the neck tube 4 a on the duct 3 side from the middle cone 5. The anemostat filter 10 is detachably attached to the inner wall of the neck tube 4a by the contact member 13 along the inner periphery of the neck tube 4a. At this time, the anemostat filter 10 is supported by the peripheral portion of the upper end edge of the middle cone 5, so there is no possibility of dropping off.

  The anemostat filter 10 is suitably used when repairing or cleaning an air conditioning duct such as a building. In the duct construction method and the duct cleaning method according to the embodiment of the present invention, first, as shown in FIGS. 3 (a) and 4 (a), the supply of air to the anemostat 2 connected to the duct 3 is stopped. As shown in FIG. 4B, the curing sheet 6 is placed on the desk 7 or fixtures in the room and cured.

  Next, a standing horse 8 or the like is installed, and using them, the middle cone 5 of the anemo filter is removed as shown in FIG. When the middle cone 5 is removed, as shown in FIGS. 3C and 3D, the anemostat filter 10 is located at the duct 3 side of the middle cone 5 inside the neck tube 4 a of the outer cone 4. Is attached, and then the middle cone 5 is attached. At this time, the anemostat filter 10 is attached so that the surface on which the tab 14 is located is on the indoor side, and the close contact member 13 is in close contact with the inner wall of the neck tube 4a. The anemostat filter 10 can be attached simply by removing the middle cone 5 of the anemostat 2 and fitting it inside the neck tube 4a. Is easy, and the installation work time can be shortened. For example, when it is necessary to attach to several dozens of anemostats 2 at a time in a large building, etc., it takes about 1/3 to 1/4 as compared to cutting and pasting the coarse dust filter. Work can be done.

  After attaching the anemostat filter 10, the curing sheet 6, the standing horse 8, etc. are removed as shown in FIG. 4A, and the duct 3 is constructed and cleaned. At this time, the anemostat filter 10 can prevent dust or the like coming out of the anemostat 2 from blowing into the room during construction or cleaning. Since the anemostat filter 10 has the reinforcing frame member 12 that retains its shape in the periphery, it is possible to prevent dust and the like from being blown out from a gap formed in the periphery due to the collapse of the filter shape. Further, since the close contact member 13 is attached in close contact with the inner wall of the neck tube 4a, the anemostat filter 10 can be reliably attached, and dust and the like passing through the neck tube 4a can be captured more reliably.

  After completion of the construction and cleaning of the duct 3, air supply to the anemostat 2 is performed for several days in the state of FIG. 3 (d) and FIG. 4 (a). Thereby, duct chips, dust, etc. remaining in the duct 3 can be attached to the anemostat filter 10. At this time, the shape of the anemostat filter 10 is held by the reinforcing frame member 12 and attached by the contact member 13, so that the pressure of the air supply is different from the case where the coarse dust filter is cut and pasted with an adhesive tape or the like. There is no need to reattach it. Since the anemostat filter 10 is supported by the upper end of the middle cone 5, there is no risk of disengagement even when air pressure is applied, and a gap for dust and the like to blow out is created between the periphery and the neck tube 4 a. Absent.

  As shown in FIG. 4 (b), the duct 3 is cured by placing a curing sheet 6 on an indoor desk 7 or fixture, and the like, as shown in FIG. 4B. To remove the anemostat filter 10 and return to the original state shown in FIG. At this time, by pulling the tab 14 to the indoor side, the anemostat filter 10 can be easily detached from the neck tube 4a. The removed anemostat filter 10 can be reused by removing collected dust and the like with a vacuum cleaner or the like. When duct work and duct cleaning are carried out by shifting the work schedule for each floor in the same building, the anemostat filter 10 can be reused for each floor, and the material cost can be reduced.

  As described above, according to the duct work method and the duct cleaning method of the embodiment of the present invention, dust or the like accompanying the work or cleaning blows out into the room from the time of the work to the time after the work or from the time of the work to the time after the cleaning. Can be prevented. In the duct construction method and the in-duct cleaning method of the embodiment of the present invention, for example, the duct 3 is constructed or cleaned on a holiday, and the air conditioner is operated with the anemostat filter 10 attached on weekdays after the holiday, By removing the anemostat filter 10 on the next holiday, the construction or cleaning of the duct can be performed without affecting the normal work in the room on weekdays. The anemostat filter 10 is also effective in capturing dust and the like that are generated when the air conditioner on the upstream side of the duct 3 is repaired.

DESCRIPTION OF SYMBOLS 1 Ceiling 2 Anemostat 3 Duct 4 Outer cone 4a Neck pipe 5 Middle cone 6 Curing sheet 7 Desk 8 Tatema 10 Anemostat filter 11 Filter body 12 Reinforcement frame member 13 Adhering member 14 Tab

Claims (6)

In the duct side of the cone in the Anemo stat performing air supply is connected to the duct, detachably on the inside of the neck tube with an external cone, mounted in temporary during renovation and the duct interior cleaning of the duct, the air supply An anemostat filter for performing and attaching dust from the duct,
A plate-like filter body having an inner peripheral shape of the neck tube;
A reinforcing frame member provided around the filter body so as to keep the shape of the filter body,
An adhesion member that covers the periphery of the filter body and the reinforcing frame member on both sides of the filter body so as to be in close contact with the inner wall of the neck tube, and is sewn to the periphery of the filter body together with the reinforcement frame member; A filter for anemostat, comprising: The anemostat filter according to claim 1, wherein the filter is attached to the inside of the neck tube so as to be supported by a peripheral portion of an upper end edge of the middle cone even when the air supply is performed. One end is sandwiched between the contact member and the filter body, and is sewn to the filter body together with the contact member so as to protrude to the indoor side when it is attached to the inner wall of the neck tube. The anemostat filter according to claim 1, further comprising a tab. The anemostat filter according to any one of claims 1 to 3 , wherein the supply of air to the anemostat connected to the duct is stopped and the neck tube of the outer cone is located closer to the duct than the middle cone of the anemostat. A duct construction method, wherein the duct is constructed after being detachably attached. After completion of construction of the duct, according to claim 4, wherein performing the air supply to Anemo Stat depositing the dust in the duct to the Anemo stat filter, characterized in that removing the Anemo stat filter after a predetermined time The duct construction method described. The anemostat filter according to any one of claims 1 to 3 , wherein the supply of air to the anemostat connected to the duct is stopped and the neck tube of the outer cone is located closer to the duct than the middle cone of the anemostat. after attaching detachably, for internal cleaning of the duct, after an internal cleaning performed air supply to the Anemo stat deposited dust in the duct to the Anemo stat filter, the predetermined time after Anemo A method for cleaning a duct, comprising removing a filter for a stat .

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