JP5916454B2 - Method and apparatus for cleaning heat exchanger in ceiling-suspended indoor unit of air conditioner - Google Patents

Method and apparatus for cleaning heat exchanger in ceiling-suspended indoor unit of air conditioner Download PDF

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JP5916454B2
JP5916454B2 JP2012062872A JP2012062872A JP5916454B2 JP 5916454 B2 JP5916454 B2 JP 5916454B2 JP 2012062872 A JP2012062872 A JP 2012062872A JP 2012062872 A JP2012062872 A JP 2012062872A JP 5916454 B2 JP5916454 B2 JP 5916454B2
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heat exchanger
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ceiling
indoor unit
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和成 北隅
和成 北隅
豊治 安達
豊治 安達
良裕 中山
良裕 中山
準二 安松
準二 安松
遼一 関矢
遼一 関矢
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E'S Inc
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Description

本発明は、空気調和装置の天井吊型室内機における熱交換器の洗浄方法及びその装置であって、特に、天井吊型室内機の内部に斜めに固定的に設置される熱交換器の洗浄方法及びその装置に関する。   The present invention relates to a method and apparatus for cleaning a heat exchanger in a ceiling-suspended indoor unit of an air conditioner, and in particular, cleaning of a heat exchanger installed obliquely and fixedly inside a ceiling-suspended indoor unit The present invention relates to a method and an apparatus thereof.

従来の空気調和装置において、フィルターは定期的にダストを洗浄する必要があったが、熱交換器も埃が多い環境条件や空気調和装置の枠体の隙間等からダストが入り込みダストが付着することがある。
この場合にも定期的に熱交換器の洗浄する必要があるが、天井に据え付ける空気調和装置の天井吊型室内機においては、空気調和装置の天井吊型室内機の全体を薄くしなければならないので、空気調和装置の天井吊型室内機の内部の熱交換器も斜めに固定設置されて装置を薄くしており、この場合の洗浄・清掃は熱交換器を天井吊型室内機に固定したまま行うことが多い。 In a conventional air conditioner, the filter must periodically clean the dust, but the heat exchanger also has dust adhering due to environmental conditions with a lot of dust and gaps in the frame of the air conditioner. There is.
In this case as well, it is necessary to periodically clean the heat exchanger. However, in the ceiling-suspended indoor unit of the air conditioner installed on the ceiling, the entire ceiling-suspended indoor unit of the air conditioner must be thinned. Therefore, the heat exchanger inside the ceiling-suspended indoor unit of the air conditioner is also fixedly installed at an angle to make the device thinner. In this case, the heat exchanger is fixed to the ceiling-suspended indoor unit. Often done as is.

このため、通常、空気調和装置において、熱交換器を天井吊型室内機の内部から取り出して洗浄・清掃することができないので、特許文献１の図４に示されるように、熱交換器の上流から高速洗浄液を噴射して、熱交換器のダストを下流へ吹き飛ばし、ダストを洗浄液と共に熱交換器の下方のドレインパンに収集している。また、ダストの剥離や洗浄効果を促進させるために化学薬品を使用する場合もある。   For this reason, in general, in an air conditioner, the heat exchanger cannot be taken out from the interior of the ceiling-suspended indoor unit and cleaned and cleaned. Therefore, as shown in FIG. The high-speed cleaning liquid is jetted from the heat exchanger, the dust of the heat exchanger is blown away downstream, and the dust is collected together with the cleaning liquid in the drain pan below the heat exchanger. In some cases, chemicals are used to promote dust peeling and cleaning effects.

特開２００２−１４７７８３号公報JP 2002-147783 A

しかしながら、特許文献１の従来技術は、熱交換器の上流から高速洗浄液を噴射して、熱交換器のダストを下流へ吹き飛ばすので、ダストは重力の影響もあって、更に熱交換器のフィンの内部に入り込み、さらにダストが詰まってしまうという問題点があった。
また、化学薬品を使用する場合には、薬液による洗浄液が熱交換器のフィンに腐食しピンホールが発生することがあり、準備作業や作業後の清掃に手間がかかり、又、薬剤が含まれた洗浄液が飛散すると周辺を化学薬品で汚染することもあり、特に、化学薬品に敏感な児童が化学薬品を含む洗浄液は健康に悪影響を及ぼす虞もあるといった問題点があった。
本発明は、このような問題点に鑑みてなされたもので、空気調和装置の天井吊型室内機における、熱交換器の内部にダストが入り込まないように熱交換器の洗浄・清掃する洗浄方法及びその装置を提供するものであり、また、ダストが室内の空気中に飛散しないように、熱交換器の洗浄・清掃する洗浄方法及びその装置を提供するものである。 However, since the conventional technology of Patent Document 1 jets high-speed cleaning liquid from the upstream side of the heat exchanger and blows away the dust of the heat exchanger downstream, the dust is also affected by gravity, and further the fins of the heat exchanger There was a problem that it got inside and was clogged with dust.
Also, when chemicals are used, the cleaning solution with chemicals may corrode on the fins of the heat exchanger and pinholes may be generated, which takes time for preparation work and cleaning after work, and contains chemicals. When the cleaning liquid is scattered, the surroundings may be contaminated with chemicals. In particular, there is a problem that a cleaning liquid containing chemicals may adversely affect health for children who are sensitive to chemicals.
The present invention has been made in view of such problems, and in a ceiling-suspended indoor unit of an air conditioner, a cleaning method for cleaning and cleaning the heat exchanger so that dust does not enter the heat exchanger. In addition, the present invention provides a cleaning method and apparatus for cleaning and cleaning a heat exchanger so that dust does not scatter in indoor air.

上記課題を解決するために、請求項１の発明は、空気調和装置の天井吊型室内機の内部に斜めに設置される熱交換器において、熱交換器の上流側の面に付着したダストに所定量の水或いは温水を散布ノズルから散布してダストの塊にする散布工程、前記散布工程の後に熱交換器の下流側から蒸気を蒸気ノズルから噴射して前記ダストの塊を熱交換器の表面から浮かす遊離工程、該浮いたダストの塊を蒸気の圧力で上流側に戻す逆流工程、さらに、該逆流工程で前記浮いたダストの塊を下流から上流に向かう蒸気及び空気の流れで逆流を防ぎつつ掻落手段によって下方に掻き落とす掻落工程とを、順次行うことを特徴とする空気調和装置の天井吊型室内機における熱交換器の洗浄方法である。
請求項２の発明は、請求項１に記載の空気調和装置の天井吊型室内機における熱交換器の洗浄方法において、前記遊離工程と逆流工程と掻落工程とを繰り返し行うことを特徴とする。
請求項３の発明は、請求項１又は２に記載の空気調和装置の天井吊型室内機における熱交換器の洗浄方法において、前記熱交換器の上流側面と下流側面の両面には、各面の位置を特定し座標作用を有する大きなマス目を有するネット又はテープを配置したことを特徴とする。
請求項４の発明は、請求項１に記載の空気調和装置の天井吊型室内機における熱交換器の洗浄方法に用いる装置であって、水或いは温水を散布ノズルから散布する散布ポンプからなる散布装置と、噴射する水を加熱して蒸気にする加熱器と、該蒸気を加圧して蒸気ノズルから噴射する噴射ポンプからなる噴射装置とを一体としたことを特徴とする空気調和装置の天井吊型室内機における熱交換器の洗浄装置である。

In order to solve the above-mentioned problems, the invention of claim 1 is directed to dust attached to the upstream surface of a heat exchanger in a heat exchanger installed obliquely inside a ceiling-suspended indoor unit of an air conditioner. A spraying step in which a predetermined amount of water or hot water is sprayed from a spray nozzle to form a lump of dust, and after the spraying step, steam is sprayed from a steam nozzle from the downstream side of the heat exchanger to remove the dust lump of the heat exchanger. A free step of floating from the surface, a reverse flow step of returning the floating dust mass to the upstream side by the pressure of the steam, and a reverse flow by the flow of steam and air from the downstream to the upstream of the dust mass floating in the reverse flow step A cleaning method for a heat exchanger in a ceiling-suspended indoor unit of an air conditioner, wherein a scraping step of scraping downward by a scraping means while preventing is sequentially performed.
According to a second aspect of the present invention, in the method for cleaning a heat exchanger in a ceiling-suspended indoor unit of an air conditioner according to the first aspect, the releasing step, the backflow step, and the scraping step are repeatedly performed.
A third aspect of the present invention is the method for cleaning a heat exchanger in a ceiling-suspended indoor unit of an air conditioner according to the first or second aspect of the invention, wherein both surfaces of the upstream side surface and the downstream side surface of the heat exchanger are provided on each side. A net or a tape having a large grid having a coordinate action is specified and the position of the above is arranged.
Invention of Claim 4 is an apparatus used for the washing | cleaning method of the heat exchanger in the ceiling-suspended type indoor unit of the air conditioning apparatus of Claim 1, Comprising: Spraying which consists of a spraying pump which sprays water or warm water from a spray nozzle A ceiling suspension of an air conditioner characterized in that an apparatus , a heater for heating water to be sprayed into steam and a spraying device comprising a spray pump for pressurizing the steam and spraying from the steam nozzle are integrated. This is a cleaning device for a heat exchanger in a type indoor unit .

請求項１の空気調和装置の天井吊型室内機における熱交換器の洗浄方法によれば、下流側から蒸気を噴射して前記ダストの塊を熱交換器から浮かし、浮いたダストの塊を蒸気の圧力で上流に戻し、浮いたダストの塊を下流から上流に向かう蒸気及び空気の流れで逆流を防ぎつつ掻落手段によって下方に掻き落とすので、熱交換器の内部にダストが入り込まないように熱交換器の洗浄・清掃することができる。
また、先ず熱交換器の上流側の面に付着したダストに所定量の水或いは温水を散布してダストの塊にするので、ダストが室内の空気中に飛散しないように、熱交換器の洗浄・清掃することができる。
請求項２の空気調和装置の天井吊型室内機における熱交換器の洗浄方法によれば、熱交換器の内部のダストをより完全に除去することができる。 According to the method for cleaning a heat exchanger in a ceiling-suspended indoor unit of an air conditioner according to claim 1, steam is injected from the downstream side to float the dust mass from the heat exchanger, and the dust mass that has floated is steamed. The dust is lifted upstream by the pressure of the air, and the lump of dust that has floated is scraped downward by the scraping means while preventing backflow by the flow of steam and air from the downstream to the upstream, so heat is prevented so that dust does not enter the heat exchanger. The exchanger can be cleaned and cleaned.
First, a predetermined amount of water or hot water is sprayed on the dust adhering to the upstream surface of the heat exchanger to form a lump of dust, so that the heat exchanger is cleaned so that the dust does not scatter in the indoor air.・ Can be cleaned.
According to the method for cleaning a heat exchanger in a ceiling-suspended indoor unit of an air conditioner according to claim 2, dust inside the heat exchanger can be more completely removed.

請求項３の空気調和装置の天井吊型室内機における熱交換器の洗浄方法によれば、ダストに所定量の水或いは温水を散布してダストの塊にする散布工程で、散布ノズルを大きな水平と垂直のマス目のネット又はテープに沿って移動すれば、熱交換器の全面をくまなく吹き付け隈無く水或いは温水を散布することができる。また、蒸気の噴射ノズルの移動も同様に前面を熱交換器の全面をくまなく吹き付け隈無く水或いは温水を散布することができる。
更に、前記熱交換器の上流側面と下流側面の両面には、各面の位置を特定する座標作用を有する大きなマス目を有するネット又はテープを配置したので、両者の面の相互位置が認識できるので、掻落工程が完了していない部分を再度下流側から蒸気を噴射して、前記遊離工程と逆流工程と掻落工程とを繰り返し、かつと逆流工程と掻落工程とを同時に行うことが容易となる。 According to the method for cleaning a heat exchanger in a ceiling-suspended indoor unit of an air conditioner according to claim 3, in a spraying step of spraying a predetermined amount of water or hot water into dust to form a lump of dust, When moving along the net or tape of the vertical grid, water or hot water can be sprayed without spraying the entire surface of the heat exchanger. Similarly, when the steam spray nozzle is moved, the front surface is sprayed over the entire surface of the heat exchanger, and water or hot water can be sprayed without any flaws.
Furthermore, since the net or tape which has the big grid which has the coordinate effect | action which pinpoints the position of each surface is arrange | positioned on both the upstream side surface and downstream side surface of the said heat exchanger, the mutual position of both surfaces can be recognized. Therefore, it becomes easy to inject the steam from the downstream side again in the part where the scraping process is not completed, repeat the release process, the backflow process, and the scraping process, and simultaneously perform the backflow process and the scraping process. .

また、請求項４の空気調和装置の天井吊型室内機における熱交換器の洗浄装置によれば、上記請求項１に記載の熱交換器の洗浄方法の実施に際し、水或いは温水を散布ノズルから散布する散布ポンプからなる散布装置と蒸気を蒸気ノズルから噴射する加熱器と噴射ポンプから噴射装置とを一体としたので、使用する電源を共通にし、散布や噴射に使用する水を共通にすることができ、結果として洗浄・清掃の準備が簡単になり、効率よく洗浄・清掃をすることができる。   According to the cleaning device for a heat exchanger in a ceiling-suspended indoor unit of an air conditioner according to claim 4, water or hot water is supplied from a spray nozzle when performing the heat exchanger cleaning method according to claim 1. Since the spraying device consisting of the spraying pump to spray, the heater that sprays steam from the steam nozzle, and the spraying device from the spray pump are integrated, the power used is shared and the water used for spraying and spraying is shared As a result, preparations for cleaning and cleaning are simplified, and cleaning and cleaning can be performed efficiently.

本発明の実施例１の熱交換器の洗浄方法に使用する空気調和装置の天井吊型室内機、及び洗浄方法を手順を説明する天井吊型室内機の断面図、Sectional drawing of the ceiling suspended indoor unit of the air-conditioning apparatus used for the washing | cleaning method of the heat exchanger of Example 1 of this invention, and the ceiling suspended indoor unit explaining the procedure of the washing | cleaning method, 本発明の空気調和装置の天井吊型室内機の熱交換器の洗浄方法に使用するネットの図、The figure of the net used for the washing | cleaning method of the heat exchanger of the ceiling-suspended type indoor unit of the air conditioning apparatus of this invention, 本発明の実施例２の熱交換器の洗浄方法に使用する空気調和装置の天井吊型室内機の洗浄方法に用いる洗浄装置の概略図である。It is the schematic of the washing | cleaning apparatus used for the washing | cleaning method of the ceiling-suspended type indoor unit of the air conditioning apparatus used for the washing | cleaning method of the heat exchanger of Example 2 of this invention.

本発明の空気調和装置の天井吊型室内機における熱交換器の洗浄方法及びその装置を図面を参照して説明する。   A method and apparatus for cleaning a heat exchanger in a ceiling-suspended indoor unit of an air conditioner according to the present invention will be described with reference to the drawings.

図１において、実施例１の空気調和装置の天井吊型室内機１の本体ケーシング２は、天井Ｆに吊られた扁平の薄型で、一方の端(図１で左端)には室内空気ＲＡを吸い込む口の吸引グリル２１が設けられ、この吸引グリル２１にはフィルター３１が設けられ、ダストＤをフィルター３１で捕捉し、フィルター３１を介してファン室２２が設けられている。
このファン室２２は仕切壁２３で気密に構成され、その中心部にファン３２が配置さ、天井吊型室内機１の内部に斜めに熱交換器４が固定配置されている。そして、ファン吸込口３２１から室内空気ＲＡを吸い込んで、ファン吐出口３２２から送風し熱交換器(コイル)５に送り込み、この熱交換器４からフラップ２４を介して、空調空気を給気ＳＡする。 In FIG. 1, a main body casing 2 of a ceiling-suspended indoor unit 1 of an air conditioner according to a first embodiment is a flat and thin shape suspended from a ceiling F, and indoor air RA is supplied to one end (the left end in FIG. 1). A suction grill 21 is provided at the inlet, and a filter 31 is provided on the suction grill 21, dust D is captured by the filter 31, and a fan chamber 22 is provided via the filter 31.
The fan chamber 22 is airtightly constituted by a partition wall 23, a fan 32 is disposed at the center thereof, and the heat exchanger 4 is fixedly disposed obliquely inside the ceiling-suspended indoor unit 1. Then, the room air RA is sucked from the fan suction port 321, blown from the fan discharge port 322, sent to the heat exchanger (coil) 5, and air-conditioned air is supplied from the heat exchanger 4 through the flap 24 SA. .

本体ケーシング２の熱交換器４の下方には、空気調和装置１の補修や保守をするための下側に開閉可能な開閉扉２６a,２６bが配備されている。
このような構成であるので、室内空気ＲＡは、室内機１の吸引グリル２１からフィルター３１を介してファン３２で吸い込まれ、ファン３２から熱交換器４に室内空気ＲＡを送り込み、空気調和して空気調和装置１のフラップ２４を介して空調空気の吹出口２８から室内に空調空気を給気ＳＡする。 Opening and closing doors 26 a and 26 b that can be opened and closed on the lower side for repairing and maintaining the air conditioner 1 are arranged below the heat exchanger 4 of the main casing 2.
Since it is such a structure, indoor air RA is suck | inhaled with the fan 32 via the filter 31 from the suction grill 21 of the indoor unit 1, and indoor air RA is sent into the heat exchanger 4 from the fan 32, and air conditioning is carried out. The conditioned air is supplied into the room SA from the conditioned air outlet 28 through the flap 24 of the air conditioner 1.

次に、熱交換器４の洗浄・清掃について説明する。
熱交換器４の洗浄・清掃では、先ず、洗浄・清掃の準備として、本体ケーシングの底面部２５にある修理・保守用の開閉扉２６ａ、２６ｂを開き、保守用開口２７ａ、２７ｂを開口し、その真下位置にダストＤを受け取るダスト収納容器２９を配置する。もっとも、このダスト収納容器２９は床一面にビニール等で養生した場合には必要はない。次いで、熱交換器４の上流側面と両面には水平方向と垂直方向に、図２に示すように、フィラメントを張った大きなマス目を有するネット５(５a,b)を配置する。なお、フィラメントは細幅の粘着テープ等でも良い。このネット５(５a,b)又はテープ(図示せず)は後述するように、洗浄・清掃をしない箇所があった場合に、各面の位置を特定する座標作用を有するもので、図２に示すように、例えば、Ｘ３、Ｙ１であれば最上段の中央の範囲(斜線部分)であり、かつ直角定規のような役目をし、マークをするためのものであるので、熱交換器４の空気通過面の面積が小さい時等は必ずしも必要がない。 Next, cleaning / cleaning of the heat exchanger 4 will be described.
In the cleaning / cleaning of the heat exchanger 4, first, as a preparation for cleaning / cleaning, the opening / closing doors 26 a, 26 b for repair / maintenance on the bottom portion 25 of the main body casing are opened, and the maintenance openings 27 a, 27 b are opened, A dust container 29 that receives the dust D is disposed immediately below the dust container 29. However, the dust container 29 is not necessary when the entire surface of the floor is cured with vinyl or the like. Next, as shown in FIG. 2, nets 5 (5a, b) having large grids with filaments are arranged on the upstream side surface and both surfaces of the heat exchanger 4 in the horizontal and vertical directions. The filament may be a narrow adhesive tape or the like. As will be described later, this net 5 (5a, b) or tape (not shown) has a coordinate action for specifying the position of each surface when there is a portion that is not cleaned or cleaned. As shown, for example, in the case of X3 and Y1, it is the uppermost central range (shaded portion) and serves as a right angle ruler for marking, so that the heat exchanger 4 This is not always necessary when the area of the air passage surface is small.

このように洗浄・清掃の準備が終わった後に、次のステップ(工程順序)を順次行う洗浄・清掃を行う。
ステップ１：、熱交換器４の上流側の保守用開口２７ａから水又は温水を散水する散布装置７の散布ノズル７１を挿入して、熱交換器４のダストＤが付着した上流側の面を配置したネット５aに沿って上部から、ダストＤが飛散せず塊を維持する程度の所定量を、散布漏れがないように隈無く散布ノズル７１から散布する。こうして、ダストＤを湿らせケーキ状にダストＤの塊を熱交換器４の上流側の面に作成する。これが、所定量の水或いは温水を散布ノズルから散布してダストの塊にする散布工程である。 After the preparation for cleaning / cleaning is completed in this way, cleaning / cleaning is performed in which the next steps (process order) are sequentially performed.
Step 1: Insert the spray nozzle 71 of the spraying device 7 for sprinkling water or hot water from the maintenance opening 27a on the upstream side of the heat exchanger 4, and the upstream surface to which the dust D of the heat exchanger 4 adheres. From the upper part along the arranged net 5a, a predetermined amount that does not scatter dust D and maintains a lump is sprayed from the spray nozzle 71 without any loss so that there is no spray leakage. In this way, the dust D is moistened and a lump of dust D is formed on the upstream surface of the heat exchanger 4 in a cake shape. This is a spraying process in which a predetermined amount of water or warm water is sprayed from the spray nozzle to form a lump of dust.

ステップ２：次に、熱交換器４の下流側の保守用開口２７ｂに蒸気(１００〜１５０℃)を噴射する蒸気噴射装置８の蒸気噴射ノズル８１を挿入して、熱交換器４の稼働時の室内機１での空気の流れとは逆の方向、すなわち熱交換器４の下流側から噴射箇所の漏れがないように蒸気を隈無く蒸気噴射ノズル８１から噴射する。熱交換器４のダストＤを上流側に押し出すように下流側の面に配置したネット５ｂに沿って上部から隈無く蒸気噴射ノズル８１から噴射する。
こうして、化学薬品を使用することを無くし、熱交換器４のコイルやフィンに付着しているダストＤを蒸気でコイルやフィンから遊離或いは浮遊させる。これが、熱交換器の下流側から蒸気を蒸気ノズルから噴射して前記ダストの塊を熱交換器から浮かす遊離工程である. Step 2: Next, the steam injection nozzle 81 of the steam injection device 8 that injects steam (100 to 150 ° C.) is inserted into the maintenance opening 27 b on the downstream side of the heat exchanger 4 to operate the heat exchanger 4. The steam is injected from the steam injection nozzle 81 without any leakage in the direction opposite to the air flow in the indoor unit 1, that is, from the downstream side of the heat exchanger 4 so that there is no leakage at the injection point. The dust D of the heat exchanger 4 is sprayed from the steam spray nozzle 81 from the upper part along the net 5b disposed on the downstream surface so as to push it upstream.
Thus, the use of chemicals is eliminated, and the dust D adhering to the coils and fins of the heat exchanger 4 is released or floated from the coils and fins with steam. This is a free process in which steam is injected from the steam nozzle from the downstream side of the heat exchanger to float the dust mass from the heat exchanger.

ステップ３：前ステップ２でダストの塊を熱交換器から浮かせた後も、浮いたダストの塊を蒸気の圧力で上流側に戻すことを継続する。これが逆流工程である。
ステップ４：さらに、浮いたダストの塊を下流から上流に向かう蒸気及び空気の流れで逆流を防ぐ逆流工程を継続しつつ、熱交換器４のコイルやフィンから遊離した、塊状のダストＤをブラシ等の掻落手段によって、ネット５ａに沿って保守用開口２７aの下方のダスト収納容器２９に掻き落とす。これが熱交換器４面のダストＤを掻き落とす掻落工程である。
なお、掻落手段に使用する掻出具９としてブラシを用いたが、より効果的にはブラシの先端は鈎型の「かえし」を設けておけば良い。勿論、効果的にダストＤを熱交換器４の内部に落とさないように掻き出せるものであれば、ブラシ以外の熊手のような掻出具でもよい。
ここで、熱交換器４にダストＤが完全に除去されていれば、ネット５を取り除き、開閉扉２６a,２６bを閉めて作業は終了する。 Step 3: Even after the dust mass is lifted from the heat exchanger in the previous step 2, the floating dust mass is continuously returned to the upstream side by the pressure of the steam. This is a backflow process.
Step 4: Furthermore, while continuing the backflow process for preventing the backflow of the floating dust lump with the flow of steam and air from upstream to downstream, the lump of dust D released from the coils and fins of the heat exchanger 4 is brushed. By using a scraping means such as the above, the dust container 29 is scraped off along the net 5a below the maintenance opening 27a. This is a scraping process in which dust D on the surface of the heat exchanger 4 is scraped off.
In addition, although the brush was used as the scraping tool 9 used for the scraping means, more effectively, the tip of the brush may be provided with a bowl-shaped “maple”. Of course, a scraping tool such as a rake other than a brush may be used as long as dust D can be effectively scraped out without falling into the heat exchanger 4.
Here, if the dust D is completely removed from the heat exchanger 4, the net 5 is removed, the doors 26a and 26b are closed, and the operation is completed.

ステップ５：一応、ステップ１から４で洗浄・清掃は終わるが、目視で熱交換器４にダストＤが取り除かれていない箇所があれば、ステップ１からステップ４を繰り返すことになる。この際、部分的なダストＤの除去となるので、ステップ１とステップ２での作業箇所が面対象として同じ箇所である必要があるが、前記の大きなマス目を有するネット５(粘着テープ)は、洗浄・清掃をしない箇所があった場合に、その所定箇所の位置を特定する座標、或いは距離測定の直角定規のような役目をし、熱交換器の上流側面と下流側面の両面の相互位置が認識できるので、掻落工程までが完了しておらず、ダストＤが残っている部分（例えば、図２での斜線部分）を再度下流側から蒸気を噴射する遊離工程を行い、その後、その部分(図２での斜線部分)で逆流工程と掻落工程と行うことで遊離工程・逆流工程・掻落工程を繰り返し行うことが容易となる。ダストＤが残っている部分が他にもあれば、必要に応じてこのステップ５を繰り返せばよい。
勿論、このステップ５は、ステップ１から４で洗浄・清掃が完全であれば、行う必要はない。 Step 5: The cleaning / cleaning is finished in Steps 1 to 4 for the time being. However, if there is a portion where the dust D is not removed visually in the heat exchanger 4, Steps 1 to 4 are repeated. At this time, since the dust D is partially removed, the work place in Step 1 and Step 2 needs to be the same place as the surface object, but the net 5 (adhesive tape) having the above large grid is If there is a part that is not cleaned / cleaned, it functions as a coordinate to specify the position of the predetermined part or a right angle ruler for distance measurement, and the mutual position of both the upstream and downstream sides of the heat exchanger Can be recognized, the scraping process is not completed, and the part where the dust D remains (for example, the hatched part in FIG. 2) is again subjected to the releasing process of injecting steam from the downstream side, and then the part. By performing the backflow process and the scraping process at the hatched portion in FIG. If there are other portions where dust D remains, step 5 may be repeated as necessary.
Of course, this step 5 does not need to be performed if the cleaning and cleaning in steps 1 to 4 are complete.

ステップ６：捕捉であるが、熱交換器４の洗浄・清掃をしても、ファン３２も一緒に清掃しないと、熱交換器４にファン３２からのダストＤが付着し直ぐに詰まるので、熱交換器４の洗浄・清掃の際には、ファン３２の洗浄・清掃を行っておいたほうが良い。   Step 6: Capture, but even if the heat exchanger 4 is cleaned and cleaned, if the fan 32 is not cleaned together, the dust D from the fan 32 adheres to the heat exchanger 4 and is immediately clogged. When cleaning and cleaning the container 4, it is better to clean and clean the fan 32.

以上のように、本発明の実施例１の空気調和装置の天井吊型室内機における熱交換器の洗浄方法によれば、下流側から蒸気を噴射して前記ダストの塊を熱交換器から浮かし、浮いたダストの塊を掻落手段によって下方に掻き落とすので、従来のような、ダストは重力の影響もあって、更に熱交換器のフィンの内部に入り込み、さらにダストが詰まってしまうという問題点を解消し、熱交換器の内部にダストが入り込まないように熱交換器の洗浄・清掃することができる。また、先ず熱交換器の上流側の面に付着したダストに所定量の水或いは温水を散布してダストの塊にするので、ダストが室内の空気中に飛散させないで、より完全に熱交換器の洗浄・清掃することができる。   As described above, according to the heat exchanger cleaning method in the ceiling-suspended indoor unit of the air conditioner according to the first embodiment of the present invention, steam is injected from the downstream side to float the dust mass from the heat exchanger. Since the lump of dust that has floated is scraped downward by the scraping means, the dust is also affected by gravity, and further enters into the fins of the heat exchanger and becomes clogged. The heat exchanger can be cleaned and cleaned so that dust does not enter the heat exchanger. In addition, since a predetermined amount of water or warm water is sprayed on the dust adhering to the upstream surface of the heat exchanger to form a lump of dust, the dust is not scattered in the indoor air, and the heat exchanger is more completely Can be cleaned and cleaned.

さらに、下流からの蒸気の噴射により、熱交換器のダストを上流へと吹き飛ばすので、従来のように化学薬品を使用する場合の薬液による洗浄液が熱交換器のフィンに腐食するピンホールの発生を防げ、準備作業や作業後の清掃に手間は簡略になり、薬剤が含まれた洗浄液が飛散して周辺を汚染することもなく、特に、化学薬品に敏感な児童が化学薬品を含む洗浄液は健康に悪影響を及ぼすことから、蒸気や水だけであるので安全である。   Furthermore, since the dust from the heat exchanger is blown upstream by the injection of steam from the downstream, the generation of pinholes that cause the cleaning liquid by chemicals to corrode the fins of the heat exchanger when using chemicals as in the past. Prevents and simplifies the preparation work and cleaning after work. The cleaning fluid containing chemicals does not scatter and contaminate the surroundings. Especially, chemical-sensitive cleaning fluids are healthy for children who are sensitive to chemicals. It is safe because only steam and water are used.

また、散布工程及び蒸気噴射工程で、熱交換器の上流又は下流に直角定規の機能を有する大きな水平と垂直のマス目のネット又はテープを配置したので、このマス目に沿って移動すれば、熱交換器の全面をくまなく吹き付け隈無く水或いは温水を散布することや、蒸気の噴射を熱交換器の全面を隈無く行うことができる。
更に、熱交換器の上流側面と下流側面の両面には、両者の面の相互位置が認識できるので、掻落工程が完了していない部分を再度下流側から蒸気を噴射して、前記遊離工程と掻落工程は繰り返し行うことが容易となる。 In addition, since a large horizontal and vertical square net or tape having the function of a right angle ruler is arranged upstream or downstream of the heat exchanger in the spraying process and the steam injection process, if moving along this square, It is possible to spray the entire surface of the heat exchanger all over the surface of the heat exchanger without spraying water or hot water, and to spray the steam over the entire surface of the heat exchanger.
Furthermore, since the mutual position of both surfaces can be recognized on both the upstream side surface and the downstream side surface of the heat exchanger, the portion where the scraping process has not been completed is again sprayed from the downstream side, The scraping step can be easily performed repeatedly.

実施例１の空気調和装置の天井吊型室内機における熱交換器４の洗浄方法は、手動であるので散布装置７と噴射装置８は別々であるが、実施例２は、図３に示すように、水或いは温水を散布ノズル７１から散布する散布ポンプ７２からなる散布装置７と、蒸気を蒸気噴射ノズル８１から噴射する水を加熱して蒸気する加熱器８２と蒸気を加圧する噴射ポンプ８３からなる噴射装置８とを一体とした熱交換機４の洗浄・清掃装置６であり、散布ノズル７１はホース７３で散布ポンプ７２に繋がれ、同様に、蒸気噴射ノズル８１もホース８４で噴射ポンプ８３につながっている。洗浄・清掃装置６は、水槽６１が設けられ、電源が必要な散布ポンプ７２や噴射ポンプ８３及び加熱器８２が一体的に設けられ、これらはキャスター６３が設けられた移動可能な枠体６２に載置されている。
したがって、この実施例２では、実施例１の作用・効果に加えて、実施例１の熱交換器４の洗浄方法を実施するに際して、散布装置７と噴射装置８とを一体としたので、使用する電源を共通にし、散布や噴射に使用する水を共用の水槽６１から供給でき、熱交換機４の両面に対して散布ノズル７１と蒸気噴射ノズル８１を、それぞれ素早く配置して作業を行うことができ、結果として洗浄・清掃の準備が簡単になり、清浄作業も効率よく洗浄・清掃をすることができる。
なお、本発明の特徴を損なうものでなければ、上記の各実施例に限定されるものでないことは勿論である。 Since the cleaning method of the heat exchanger 4 in the ceiling-suspended indoor unit of the air conditioning apparatus of the first embodiment is manual, the spraying device 7 and the spraying device 8 are separate, but the second embodiment is as shown in FIG. Furthermore, from a spraying device 7 comprising a spray pump 72 for spraying water or hot water from the spray nozzle 71, a heater 82 for heating and steaming water sprayed from the steam spray nozzle 81, and an injection pump 83 for pressurizing steam. This is a cleaning / cleaning device 6 for the heat exchanger 4 integrated with the injection device 8. The spray nozzle 71 is connected to the spray pump 72 by a hose 73. Similarly, the steam spray nozzle 81 is connected to the spray pump 83 by a hose 84. linked. The cleaning / cleaning device 6 is provided with a water tank 61, and a spray pump 72, a spray pump 83, and a heater 82 that require a power source are integrally provided, and these are provided on a movable frame 62 provided with casters 63. It is placed.
Therefore, in the second embodiment, in addition to the operations and effects of the first embodiment, the spraying device 7 and the injection device 8 are integrated when the cleaning method for the heat exchanger 4 of the first embodiment is performed. Power to be used in common, water used for spraying and spraying can be supplied from the shared water tank 61, and the spray nozzle 71 and the steam spray nozzle 81 can be quickly arranged on both sides of the heat exchanger 4 for work. As a result, preparation for cleaning / cleaning is simplified, and cleaning work can be efficiently cleaned / cleaned.
Of course, the present invention is not limited to the above-described embodiments as long as the features of the present invention are not impaired.

１・・(空気調和装置の)室内機、２・・本体ケーシング、
２１・・吸引グリル、２２・・ファン室、２３・・仕切壁、２４・・フラップ、
２５・・底面部、２６a,２６b・・開閉扉、２７a,２７ｂ・・保守用開口、
２８・・吹出口、２９・・ダスト収納容器、
３１・・フィルター、
３２・・ファン、３２１・・ファン吸込口、３２２・・ファン吐出口、
４・・熱交換器、
５,５a,５ｂ・・ネット(粘着テープ）、
６・・洗浄・清掃装置、６１・・水槽、６２・・枠体、６３・・キャスター、
７・・散布装置、７１・・散布ノズル、７２・・散布ポンプ、７３・・ホース、
８・・蒸気噴射装置、８１・・蒸気噴射ノズル、８２・・加熱器、
８３・・噴射ポンプ、８４・・ホース
９・・掻出具(ブラシ) 1. Indoor unit (of air conditioner) 2. Main body casing
21..Suction grill, 22..Fan chamber, 23..Partition wall, 24..Flap,
25 .. Bottom part, 26a, 26b ... Opening / closing door, 27a, 27b ... Maintenance opening,
28 .. outlet, 29 .. dust storage container,
31. Filter,
32 .. Fan, 321 .. Fan inlet, 322 .. Fan outlet,
4. Heat exchanger,
5,5a, 5b ... net (adhesive tape),
6 .... Cleaning / cleaning device, 61 ... Water tank, 62 ... Frame, 63 ... Casters,
7 .... Spraying device, 71 ... Spray nozzle, 72 ... Spray pump, 73 ... Hose,
8 ... Steam injection device, 81 ... Steam injection nozzle, 82 ... Heater,
83 .. Injection pump, 84 .. Hose 9 .. Scraping tool (brush)

Claims (4)

空気調和装置の天井吊型室内機の内部に斜めに設置される熱交換器において、
熱交換器の上流側の面に付着したダストに所定量の水或いは温水を散布ノズルから散布してダストの塊にする散布工程、
前記散布工程の後に熱交換器の下流側から蒸気を蒸気ノズルから噴射して前記ダストの塊を熱交換器の表面から浮かす遊離工程、
該浮いたダストの塊を蒸気の圧力で上流側に戻す逆流工程、
さらに、該逆流工程で前記浮いたダストの塊を下流から上流に向かう蒸気及び空気の流れで逆流を防ぎつつ掻落手段によって下方に掻き落とす掻落工程とを、順次行うことを特徴とする空気調和装置の天井吊型室内機における熱交換器の洗浄方法。 In the heat exchanger installed diagonally inside the ceiling-suspended indoor unit of the air conditioner,
A spraying process in which a predetermined amount of water or hot water is sprayed from a spray nozzle to dust adhering to the upstream surface of the heat exchanger to form a lump of dust
A free step of injecting steam from a steam nozzle from the downstream side of the heat exchanger after the spraying step to float the dust mass from the surface of the heat exchanger;
A backflow process for returning the lump of floating dust to the upstream side by the pressure of steam;
Further, the air conditioning apparatus is characterized by sequentially performing a scraping step of scraping the lump of dust floating in the backward flow step downward by a scraping means while preventing the backward flow by the flow of steam and air from downstream to upstream. Cleaning method for heat exchanger in ceiling-suspended indoor unit. 前記遊離工程と逆流工程と掻落工程とを繰り返し行うことを特徴とする請求項１に記載の空気調和装置の天井吊型室内機における熱交換器の洗浄方法。   The method of cleaning a heat exchanger in a ceiling-suspended indoor unit of an air conditioner according to claim 1, wherein the releasing step, the backflow step, and the scraping step are repeated. 前記熱交換器の上流側面と下流側面の両面には、各面の位置を特定し座標作用を有する大きなマス目を有するネット又はテープを配置したことを特徴とする請求項１又は２に記載の空気調和装置の天井吊型室内機における熱交換器の洗浄方法。 The net or tape which has the big grid which specifies the position of each surface and has a coordinate action was arranged on both sides of the upstream side and the downstream side of the heat exchanger according to claim 1 or 2. A method for cleaning a heat exchanger in a ceiling-suspended indoor unit of an air conditioner. 請求項１に記載の空気調和装置の天井吊型室内機における熱交換器の洗浄方法に用いる装置であって、水或いは温水を散布ノズルから散布する散布ポンプからなる散布装置と、噴射する水を加熱して蒸気にする加熱器と、該蒸気を加圧して蒸気ノズルから噴射する噴射ポンプからなる噴射装置とを一体としたことを特徴とする空気調和装置の天井吊型室内機における熱交換器の洗浄装置。 An apparatus used in the method of cleaning the heat exchanger in the ceiling suspended type indoor unit of an air conditioner according to claim 1, the spraying device comprising a spraying pump to spray water or hot water from the spray nozzle, the water jet a heater heated to a vapor, the heat exchanger in the ceiling suspension type indoor unit of an air conditioner is characterized in that an integral and injection device comprising a jet pump for injecting the steam nozzle pressurizes the air the evaporated Cleaning equipment.
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