JP2013185777A - Filter for anemostat (r), ductwork method and cleaning method in duct - Google Patents

Filter for anemostat (r), ductwork method and cleaning method in duct Download PDF

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JP2013185777A
JP2013185777A JP2012052407A JP2012052407A JP2013185777A JP 2013185777 A JP2013185777 A JP 2013185777A JP 2012052407 A JP2012052407 A JP 2012052407A JP 2012052407 A JP2012052407 A JP 2012052407A JP 2013185777 A JP2013185777 A JP 2013185777A
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filter
duct
anemostat
neck tube
cleaning
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JP5873740B2 (en
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Kiyofumi Nishiojo
清文 西大條
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Sanki Engineering Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a filter for an Anemostat (R), which can be easily attached and detached and can be reused without requiring repair, and to provide a ductwork method and a cleaning method in a duct.SOLUTION: A filter 10 for an Anemostat (R) includes a disk-like filter body, a reinforcing frame member mounted on a periphery of the filter body to hold the shape of the filter, and a flexible adhesion member mounted along a circumferential edge of the filter body. Air supply to an Anemostat (R) 2 connected to a duct 3 is stopped; the filter 10 for an Anemostat (R) is attached to the inside of a neck pipe 4a of an outer cone 4, on a side close to the duct 3 from a center cone 5 of the Anemostat (R) 2; and then the duct 3 is worked and cleaned. After works and cleaning are finished, air is supplied to the Anemostat (R) 2 for a prescribed time to deposit dust inside the duct 3 onto the filter 10 for an Anemostat (R), then the filter 10 for an Anemostat (R) is detached.

Description

本発明は、アネモスタット用フィルタ、ダクト工事方法およびダクト内清掃方法に関する。   The present invention relates to an anemostat filter, a duct work method, and a duct cleaning method.

ビル等の空調用ダクトの改修工事は、室内に人がいるときには給気を停止できないため、室内に人がいない休日に行われることが多い。また、最初の休日で工事が終了しない場合には、工事終了までの期間中の平日はいつも通りに空調できるようにしなければならない。   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.

ビル等の空調用ダクトの改修工事では、ダクト内の塵埃等がアネモスタットから出ないようにする必要がある。また、ダクトの改修工事終了後は、ダクト切粉や工事の振動によってダクトから剥離した塵埃等がダクト内に残留しているため、ダクト内へ通気したとき、しばらくの間、切粉や塵埃などがアネモスタットから吹き出すおそれがある。このため、休日に工事を行った後、平日は送風を続けつつ、塵埃等を捕集する必要がある。   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.

このような塵埃等を防ぐものとして、エアフィルタ（例えば、特許文献１参照）や作業足場（例えば、特許文献２参照）が開発されている。しかし、特許文献１に記載のエアフィルタは、アネモスタット用のものではなく、これをアネモスタットに取り付けると気流の拡散ができなくなるという課題があった。また、特許文献２に記載の作業足場は、大掛かりであるため、大きいビル等で、一度に数十箇所のアネモスタットに設置する必要がある場合には、その数を揃えたり、設置したりするのが困難であるという課題があった。また、工事期間中のほか工事終了後にも塵埃等がアネモスタットから吹き出すおそれがあるので、平日であっても作業足場を取り外すことができず、邪魔になるという課題もあった。   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.

そこで、これらの課題を解決するため、図５に示すように、ロールフィルタを現場で四角形や円形などの適当な大きさに裁断し、裁断したフィルタ５１を、天井１に取り付けられたアネモスタット２の中コーン５の奥で、外コーン４のネック管４ａの内側に、養生テープ５２で隙間なく貼り付ける方法が考えられる。このようにした場合、工事中のアネモスタット２からの塵埃等を防ぐとともに、工事後しばらくの間、取り付けたままにしておくことで、平日に送風を続けつつ、アネモスタット３から吹き出す塵埃等を防いで捕集することができる。   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.

特開２０００−３２０８８６号公報JP 2000-320886 A 特開平１１−２１０２２１号公報JP-A-11-210221

しかしながら、図５に記載の養生方法を採った場合、一箇所毎にロールフィルタを裁断して貼り付けることになるため、数十箇所のアネモスタット２がある工事現場では、取付作業にかなりの時間がかかるという問題がある。また、使用したフィルタ５１に貼り付けられた養生テープ５２を剥がす作業は煩雑なため、使用したフィルタ５１は再利用されず、養生テープ５２が張り付いたままで廃棄されていた。   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.

また、図５に記載の養生方法を採った場合、給気の圧力で次第に養生テープ５２が剥がれて、フィルタ５１と外コーン４のネック管４ａの内側との間に生じた隙間を通ったダクト内の塵埃等が、アネモスタットから出てくるおそれがある。さらに、養生テープ５２が剥がれて、養生テープ５２やフィルタ５１がアネモスタットから落下してくるおそれもある。このため、これらの場合には、養生テープ５２の補修作業が必要となるという問題もある。   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.

本発明は、このような課題に着目してなされたもので、着脱作業が容易かつ補修が不要で、再利用可能なアネモスタット用フィルタ、ダクト工事方法およびダクト内清掃方法を提供することを目的としている。   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.

上記目的を達成するために、本発明に係るアネモスタット用フィルタは、ダクトに接続されたアネモスタットの中コーンよりダクト側で、外コーンのネック管の内部に着脱可能に設けられることを特徴とする。   In order to achieve the above object, the anemostat filter according to the present invention is characterized in that it is detachably provided inside the neck tube of the outer cone on the duct side from the middle cone of the anemostat connected to the duct. To do.

本発明に係るアネモスタット用フィルタは、ビル等の空調用ダクトの改修工事や清掃のときに好適に使用される。本発明に係るアネモスタット用フィルタは、アネモスタットの中コーンよりダクト側で、ネック管の内部に取り付けることにより、アネモスタットから塵埃等が室内に吹き出るのを防ぐことができる。アネモスタットの中コーンを外して、ネック管の内部に設けるだけで取り付けられるので、取付作業が容易で、取付作業時間を短縮することができる。また、取り外しも容易であり、再利用することができる。また、アネモスタット用フィルタは、中コーンの上端縁周部で支えられるため、脱落するおそれがなく、補修が不要である。   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. 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 is required.

本発明に係るアネモスタット用フィルタは、周縁に前記ネック管の内壁に密着可能な密着部材を有することが好ましい。この場合、密着部材をネック管の内壁に密着させて取り付けることにより、確実に取付可能で、ネック管を通過する塵埃等をより確実に捕らえることができる。密着部材には、柔軟性を有するウレタン材などが好ましい。   The anemostat filter according to the present invention preferably has an adhesion member that can be adhered to the inner wall of the neck tube at the periphery. In this case, by attaching the close contact member in close contact with the inner wall of the neck tube, it is possible to attach the contact member reliably, and dust and the like passing through the neck tube can be captured more reliably. The adhesive member is preferably a flexible urethane material.

本発明に係るアネモスタット用フィルタは、前記ネック管の内周形状を有する板状のフィルタ本体と、前記フィルタ本体の周囲に設けられた補強枠部材とを有することが好ましい。この場合、形が崩れて周囲にできた隙間から塵埃等が吹き出るのを防ぐことができる。フィルタ本体には、空気中の塵埃を捕捉可能なものが用いられ、例えば、合成繊維不織布から成り、捕集率の高い粗塵用フィルタなどが好適である。補強枠部材は、板状のフィルタ本体の形状を保つことができるものから成り、例えば、針金、合成樹脂などから構成することができる。補強枠部材は、ネック管の内壁に密着可能な密着部材を兼ねていてもよい。本発明に係るアネモスタット用フィルタは、密着部材によりネック管の内壁に密着した状態から取外しを容易にするため、ネック管の内壁に取り付けたとき室内側に突出するタブを有していてもよい。   The anemostat filter according to the present invention preferably includes a plate-shaped filter body having an inner peripheral shape of the neck tube, and a reinforcing frame member provided around the filter body. In this case, it is possible to prevent dust and the like from being blown out from a gap formed around the shape. 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. A reinforcement frame member consists of what can maintain the shape of a plate-shaped filter main body, for example, can be comprised from a wire, a synthetic resin, etc. The reinforcing frame member may also serve as a close contact member that can be in close contact with the inner wall of the neck tube. The anemostat filter according to the present invention may have a tab that protrudes indoors when attached to the inner wall of the neck tube in order to facilitate removal from the state of being in close contact with the inner wall of the neck tube by the contact member. .

本発明に係るダクト工事方法は、ダクトに接続されたアネモスタットへの給気を止め、前記アネモスタットの中コーンよりダクト側で外コーンのネック管の内部にフィルタを着脱可能に取り付けた後、前記ダクトの工事を行うことを特徴とする。   The duct construction method according to the present invention stops air supply to the anemostat connected to the duct, and after the filter is detachably attached to the inside of the neck tube of the outer cone on the duct side from the middle cone of the anemostat, The duct is constructed.

本発明に係るダクト内清掃方法は、ダクトに接続されたアネモスタットへの給気を止め、前記アネモスタットの中コーンよりダクト側で外コーンのネック管の内部にフィルタを着脱可能に取り付けた後、前記ダクトの内部清掃を行い、内部清掃後、前記アネモスタットへの給気を行って前記ダクト内の塵埃を前記フィルタに付着させ、所定時間後に前記フィルタを取り外すことを特徴とする。   In the method for cleaning an inside of a duct according to the present invention, air supply to the anemostat connected to the duct is stopped, and a filter is detachably attached to the inside of the neck tube of the outer cone on the duct side from the inside cone of the anemostat. The internal cleaning of the duct is performed, and after the internal cleaning, air is supplied to the anemostat to allow dust in the duct to adhere to the filter, and the filter is removed after a predetermined time.

本発明に係るダクト工事方法およびダクト内清掃方法は、フィルタにより、工事中または清掃中にアネモスタットから出てくる塵埃等を防ぐことができる。フィルタをネック管の内部に嵌めるだけで簡単に取り付けることができるため、取付作業が容易で、取付作業時間を短縮することができる。また、フィルタの取り外しも容易であり、フィルタを再利用することもできる。また、フィルタが、中コーンの上端縁周部で支えられるため、脱落するおそれがなく、フィルタの補修も不要である。   The duct construction method and the duct internal cleaning method according to the present invention can prevent dust and the like coming out of the anemostat during construction or cleaning by the filter. Since the filter can be easily attached by simply fitting the filter inside the neck tube, the attaching operation is easy and the attaching operation time can be shortened. Further, the filter can be easily removed, and the filter can be reused. In addition, since the filter is supported by the peripheral edge of the upper edge of the middle cone, there is no possibility of dropping off, and repair of the filter is unnecessary.

本発明に係るダクト工事方法およびダクト内清掃方法において、前記フィルタは周縁に前記ネック管の内壁に密着可能な密着部材を有し、前記フィルタを前記密着部材で前記ネック管の内壁に密着するよう取り付けることが好ましい。この場合、フィルタを確実に取付可能で、ネック管を通過する塵埃等をより確実に捕らえることができる。フィルタは、本発明に係るアネモスタット用フィルタから成ることが好ましい。フィルタがネック管の内周形状を有する板状のフィルタ本体と、フィルタ本体の周囲に設けられた補強枠部材とを有する場合、形が崩れて周囲にできた隙間から塵埃等が吹き出るのを防ぐことができる。   In the duct construction method and the duct cleaning method according to the present invention, the filter has a contact member that can be in close contact with the inner wall of the neck tube at the periphery, and the filter is in close contact with the inner wall of the neck tube with the contact member. It is preferable to attach. In this case, the filter can be securely attached, and dust and the like passing through the neck tube can be captured more reliably. The filter is preferably composed of the anemostat filter according to the present invention. When the filter has a plate-like filter main body having an inner peripheral shape of the neck tube and a reinforcing frame member provided around the filter main body, the shape is broken and dust and the like are prevented from being blown out from a gap formed around the filter main body. be able to.

本発明に係るダクト工事方法およびダクト内清掃方法は、前記ダクトの工事または内部清掃の終了後、前記アネモスタットへの給気を行って前記ダクト内の塵埃を前記フィルタに付着させ、所定時間後に前記フィルタを取り外すことが好ましい。この場合、アネモスタットへ給気を行うことにより、工事または内部清掃の終了後にダクト内に残留しているダクト切粉や塵埃等を、フィルタに付着させることができる。これにより、工事中から工事後まで、または、清掃中から清掃後まで、工事または清掃に伴う塵埃等が室内に吹き出るのを防ぐことができる。フィルタは、ダクト内に塵埃等が殆ど残っていない頃合いを見計らって取り外すことが好ましい。例えば、休日にダクトの工事または清掃を行い、休日後の平日にフィルタを取り付けた状態で空調を稼働させ、次の休日にフィルタを取り外すことにより、平日の室内の通常業務に影響を及ぼすことなく、ダクトの工事または清掃を行うことができる。   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 filter, and after a predetermined time. It is preferable to remove the filter. In this case, by supplying air to the anemostat, duct chips and dust remaining in the duct after completion of construction or internal cleaning can be attached to the 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. It is preferable to remove the filter in a time when almost no dust or the like remains in the duct. For example, duct work or cleaning on holidays, air conditioning with filters attached on weekdays after holidays, and removal of filters on the next holiday, without affecting the normal work on weekdays. Duct construction or cleaning can be performed.

本発明によれば、着脱作業が容易かつ補修が不要で、再利用可能なアネモスタット用フィルタ、ダクト工事方法およびダクト内清掃方法を提供することができる。   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.

本発明の実施の形態のアネモスタット用フィルタを示す正面図である。It is a front view which shows the filter for an anemostat of embodiment of this invention. 図１のアネモスタット用フィルタの使用状況を示す断面図である。It is sectional drawing which shows the usage condition of the filter for anemostats of FIG. 本発明の実施の形態のダクト工事方法およびダクト内清掃方法を示すアネモスタットの断面図である。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. 本発明の実施の形態のダクト工事方法およびダクト内清掃方法を示す建物内部の側面図である。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. 従来のアネモスタットへのフィルタの取付状況を示す断面図である。It is sectional drawing which shows the attachment condition of the filter to the conventional anemostat.

以下、図面に基づき、本発明の実施の形態について説明する。
図１乃至図４は、本発明の実施の形態のアネモスタット用フィルタ、ダクト工事方法およびダクト内清掃方法を示している。
図１に示すように、アネモスタット用フィルタ１０は、円板状を成し、フィルタ本体１１と補強枠部材１２と密着部材１３とタブ１４とを有している。 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.

フィルタ本体１１は、空気中の塵埃の捕集率の高い約５ｍｍ厚の合成繊維不織布製の粗塵用フィルタから成り、円板状を成している。補強枠部材１２は、針金から成り、フィルタ本体１１の形状を保持するよう、フィルタ本体１１の周縁部に沿って取り付けられている。密着部材１３は、柔軟性を有するウレタン材から成り、フィルタ本体１１の周縁に沿って取り付けられている。密着部材１３は、フィルタ本体１１の両面でフィルタ本体１１の周縁部と補強枠部材１２とを覆い、補強枠部材１２とともにフィルタ本体１１の周縁部に縫い付けられている。   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.

タブ１４は、帯状部材から成り、フィルタ本体１１の一方の面に２つまたは４つ取り付けられている。各タブ１４は、フィルタ本体１１の周縁部の等間隔の位置に配置され、一端が密着部材１３とフィルタ本体１１との間に挟まれて、密着部材１３とともにフィルタ本体１１に縫い付けられている。   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. .

図２に示すように、アネモスタット用フィルタ１０は、天井１に取り付けられたアネモスタット２に取り付け可能である。アネモスタット２は、天井裏のダクト３に外コーン４が接続され、外コーン４のネック管４ａの内側に中コーン５が着脱可能に取り付けられている。アネモスタット用フィルタ１０は、取り付けられるアネモスタット２の外コーン４のネック管４ａの内径より、やや大きい外形を有している。アネモスタット用フィルタ１０は、中コーン５よりダクト３の側でネック管４ａの内部に配置される。アネモスタット用フィルタ１０は、ネック管４ａの内周に沿って密着部材１３でネック管４ａの内壁に密着するよう着脱可能に取り付けられる。このとき、アネモスタット用フィルタ１０は、中コーン５の上端縁周部で支えられるため、脱落するおそれがない。   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.

アネモスタット用フィルタ１０は、ビル等の空調用ダクトの改修工事や清掃のときに、好適に使用される。本発明の実施の形態のダクト工事方法およびダクト内清掃方法では、まず、図３（ａ）および図４（ａ）に示すように、ダクト３に接続されたアネモスタット２への給気を止め、図４（ｂ）に示すように、室内の机７や備品等の上に養生シート６をかけて養生する。   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.

次に、立馬８などを設置し、それらを利用して、図３（ｂ）に示すように、アネモフィルタの中コーン５を取り外す。中コーン５を取り外したならば、図３（ｃ）および（ｄ）に示すように、外コーン４のネック管４ａの内部の、中コーン５よりダクト３の側の位置にアネモスタット用フィルタ１０を取り付けてから、中コーン５を取り付ける。このとき、タブ１４のある面を室内側にして、密着部材１３でネック管４ａの内壁に気密的に密着するよう、アネモスタット用フィルタ１０を取り付ける。アネモスタット用フィルタ１０はアネモスタット２の中コーン５を外して、ネック管４ａの内部に嵌めるだけで取り付けられるので、粗塵用フィルタを切断して粘着テープなどで貼り付ける場合に比べて取付作業が容易で、取付作業時間を短縮することができる。例えば、大きいビル等で、一度に数十箇所のアネモスタット２に取り付ける必要がある場合、粗塵用フィルタを切断して貼り付けるのに比べて、１／３〜１／４程度の時間で取付作業を行うことができる。   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.

アネモスタット用フィルタ１０の取り付け後、図４（ａ）に示すように、養生シート６、立馬８などを取り外し、ダクト３の工事や清掃を行う。このとき、アネモスタット用フィルタ１０により、工事中や清掃中にアネモスタット２から出てくる塵埃等が室内に吹き出るのを防ぐことができる。アネモスタット用フィルタ１０は、周囲にその形状を保持する補強枠部材１２を有するため、フィルタ形状が崩れて周囲にできた隙間から塵埃等が吹き出るのを防ぐことができる。また、アネモスタット用フィルタ１０は、密着部材１３がネック管４aの内壁に密着して取り付けられるので、確実に取付可能で、ネック管４aを通過する塵埃等をより確実に捕らえることができる。   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.

ダクト３の工事や清掃の終了後、図３（ｄ）および図４（ａ）の状態で、数日間、アネモスタット２への給気を行う。これにより、ダクト３の内部に残留しているダクト切粉や塵埃等を、アネモスタット用フィルタ１０に付着させることができる。このとき、アネモスタット用フィルタ１０は、補強枠部材１２により形状が保持され、密着部材１３により取り付けられるので、粗塵用フィルタを切断して粘着テープなどで貼り付ける場合と異なり、給気の圧力などで外れることがなく、取り付け直す必要がない。アネモスタット用フィルタ１０は、中コーン５の上端部に支持されているため、給気の圧力を受けても、外れるおそれがなく、周囲とネック管４ａとの間に塵埃等が吹き出る隙間を生じない。   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.

ダクト３の内部に塵埃等が殆ど残っていない頃合いを見計らって、図４（ｂ）に示すように、室内の机７や備品等の上に養生シート６をかけて養生し、立馬８などを設置してアネモスタット用フィルタ１０を取り外し、図３（ａ）に示す元の状態に戻す。このとき、タブ１４を室内側に引っ張ることにより、アネモスタット用フィルタ１０をネック管４ａから容易に取り外すことができる。取り外したアネモスタット用フィルタ１０は、捕集された塵埃等を掃除機などで除去することにより再利用することができる。同じビル内でフロア毎に作業日程をずらしてダクト工事やダクト清掃を進める場合には、アネモスタット用フィルタ１０をフロア毎に再利用することができ、材料費を低減することができる。   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.

このように、本発明の実施の形態のダクト工事方法およびダクト内清掃方法によれば、工事中から工事後まで、または、清掃中から清掃後まで、工事または清掃に伴う塵埃等が室内に吹き出るのを防ぐことができる。本発明の実施の形態のダクト工事方法およびダクト内清掃方法では、例えば、休日にダクト３の工事または清掃を行い、休日後の平日にアネモスタット用フィルタ１０を取り付けた状態で空調を稼働させ、次の休日にアネモスタット用フィルタ１０を取り外すことにより、平日の室内の通常業務に影響を及ぼすことなく、ダクトの工事または清掃を行うことができる。また、アネモスタット用フィルタ１０は、ダクト３の上流側にある空気調和装置の改修工事の際に発生する塵埃等の捕捉にも有効である。   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.

１ 天井
２ アネモスタット
３ ダクト
４ 外コーン
４ａ ネック管
５ 中コーン
６ 養生シート
７ 机
８ 立馬
１０ アネモスタット用フィルタ
１１ フィルタ本体
１２ 補強枠部材
１３ 密着部材
１４ タブ
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 (7)

ダクトに接続されたアネモスタットの中コーンよりダクト側で、外コーンのネック管の内部に着脱可能に設けられることを特徴とするアネモスタット用フィルタ。   A filter for an anemostat, which is detachably provided inside a neck pipe of an outer cone on the duct side of an anemonestat connected to the duct. 周縁に前記ネック管の内壁に密着可能な密着部材を有することを特徴とする請求項１記載のアネモスタット用フィルタ。   The anemostat filter according to claim 1, further comprising an adhesion member capable of being adhered to an inner wall of the neck tube at a peripheral edge. 前記ネック管の内周形状を有する板状のフィルタ本体と、前記フィルタ本体の周囲に設けられた補強枠部材とを有することを特徴とする請求項１または２記載のアネモスタット用フィルタ。   3. The anemostat filter according to claim 1, further comprising: a plate-like filter main body having an inner peripheral shape of the neck tube; and a reinforcing frame member provided around the filter main body. ダクトに接続されたアネモスタットへの給気を止め、前記アネモスタットの中コーンよりダクト側で外コーンのネック管の内部にフィルタを着脱可能に取り付けた後、前記ダクトの工事を行うことを特徴とするダクト工事方法。   The air supply to the anemostat connected to the duct is stopped, the filter is detachably attached to the inside of the neck tube of the outer cone on the duct side from the middle cone of the anemostat, and then the duct is constructed. Duct construction method. 前記フィルタは周縁に前記ネック管の内壁に密着可能な密着部材を有し、前記フィルタを前記密着部材で前記ネック管の内壁に密着するよう取り付けることを特徴とする請求項４記載のダクト工事方法。   The duct construction method according to claim 4, wherein the filter has a contact member that can be in close contact with an inner wall of the neck tube at a peripheral edge, and the filter is attached so as to contact the inner wall of the neck tube with the contact member. . 前記ダクトの工事終了後、前記アネモスタットへの給気を行って前記ダクト内の塵埃を前記フィルタに付着させ、所定時間後に前記フィルタを取り外すことを特徴とする請求項４または５記載のダクト工事方法。   The duct work according to claim 4 or 5, wherein after the construction of the duct is completed, air is supplied to the anemostat so that dust in the duct adheres to the filter, and the filter is removed after a predetermined time. Method. ダクトに接続されたアネモスタットへの給気を止め、前記アネモスタットの中コーンよりダクト側で外コーンのネック管の内部にフィルタを着脱可能に取り付けた後、前記ダクトの内部清掃を行い、内部清掃後、前記アネモスタットへの給気を行って前記ダクト内の塵埃を前記フィルタに付着させ、所定時間後に前記フィルタを取り外すことを特徴とするダクト内清掃方法。

Air supply to the anemostat connected to the duct is stopped, a filter is detachably attached to the inside of the neck tube of the outer cone on the duct side from the middle cone of the anemostat, and then the inside of the duct is cleaned, A method for cleaning an inside of a duct, comprising: supplying air to the anemostat after cleaning, causing dust in the duct to adhere to the filter, and removing the filter after a predetermined time.

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