JP7042299B2

JP7042299B2 - How to clean the heat exchanger coil.

Info

Publication number: JP7042299B2
Application number: JP2020086073A
Authority: JP
Inventors: 康宏西; 幸雄茂呂; 信洋平須賀; 康司乃田; 圭祐福田
Original assignee: Sinko Industries Ltd
Current assignee: Sinko Industries Ltd
Priority date: 2020-05-15
Filing date: 2020-05-15
Publication date: 2022-03-25
Anticipated expiration: 2040-05-15
Also published as: JP2021179296A

Description

特許法第３０条第２項適用一般社団法人建設設備技術者協会が、令和２年３月５日に発行した建築設備士２０２０年３月（Ｍａｒｃｈ）号，１７頁Article 30, Paragraph 2 of the Patent Law Applicable Building Equipment Engineer March 2020 (March), p. 17 issued by the Association of Construction Equipment Engineers, Reiwa on March 5, 2020.

本発明は、空気調和機における熱交換器コイルの清掃方法に関する。さらに詳しくは、天井設置する空気調和機のファンコイルユニット等の熱交換器コイルにおいて、天井内の限られたスペースにおいても簡易に熱交換器コイルを洗浄可能にした熱交換器コイルの清掃方法に関する。
The present invention relates to a method for cleaning a heat exchanger coil in an air conditioner. More specifically, the present invention relates to a method for cleaning a heat exchanger coil such as a fan coil unit of an air conditioner installed on the ceiling, which makes it possible to easily clean the heat exchanger coil even in a limited space in the ceiling. ..

天井等に設置する空気調和機のコイルはフィン等に空気中のゴミ等がつまり空調効率が低下し、また、長年の使用でカビ等による臭気が発生することもあり、所定間隔で清掃する必要があるが、清掃困難であり実際には清掃がほとんどなされていない。とはいえ、空調効率が著しく低下し、悪臭等が発生する場合には、従来、例えば天井吊り隠ペイ型空気調和機の熱交換器であるコイルは、特許文献１、特許文献２に開示されているように、これらの部材やユニットを機体から下方に下ろし洗浄による清掃を行っていた。
また、縦型の空気調和機においては、特許文献３に示すように、前面扉を開放して前面から散水洗浄することによって清掃を行っていた。 The coil of the air conditioner installed on the ceiling, etc. needs to be cleaned at regular intervals because the fins, etc. are clogged with dust in the air, which reduces the air conditioning efficiency and may generate odor due to mold, etc. after many years of use. However, it is difficult to clean and it is not actually cleaned. However, when the air conditioning efficiency is significantly lowered and a bad odor is generated, conventionally, for example, a coil which is a heat exchanger of a ceiling-mounted hidden pay type air conditioner is disclosed in Patent Documents 1 and 2. As shown above, these members and units were lowered from the aircraft and cleaned by cleaning.
Further, in the vertical air conditioner, as shown in Patent Document 3, cleaning is performed by opening the front door and sprinkling water from the front surface for cleaning.

特開平１０－１６０１８８号公報Japanese Unexamined Patent Publication No. 10-160188 実用新案登録第３０９７９１８号公報Utility Model Registration No. 3097918 特開２００５－１７２３６０号公報Japanese Unexamined Patent Publication No. 2005-172360

ところで、前掲特許文献１では、ユニットを機体から下方に下すには、ファンモーターユニットやコイルユニットを上下方向に案内機構を設けてスライド式に移動させていたが、案内機構が大がかりになり、また、広い天井空間が必要となる等の問題点があった。さらに、前掲特許文献２では、ファンモーターユニットについての脱着装置であるが、ファンモーターユニットをケーシングから脱離する作業が必要であり、特許文献２と同様な問題点があった。
また、前掲特許文献３は、装置全体を洗浄するため、洗浄すべき熱交換コイル以外のファンやファン駆動モータ、加湿器等に洗浄水が飛散してしまい、思わぬ故障等を引き起こす等の問題点があった。 By the way, in the above-mentioned Patent Document 1, in order to lower the unit downward from the machine body, the fan motor unit and the coil unit are slidably moved by providing a guide mechanism in the vertical direction, but the guide mechanism becomes large and also. There were problems such as the need for a large ceiling space. Further, in the above-mentioned Patent Document 2, although the attachment / detachment device is for the fan motor unit, it is necessary to remove the fan motor unit from the casing, which has the same problem as in Patent Document 2.
Further, Patent Document 3 mentioned above has a problem that the washing water is scattered on a fan, a fan drive motor, a humidifier, etc. other than the heat exchange coil to be cleaned in order to clean the entire apparatus, which causes an unexpected failure or the like. There was a point.

本発明は、上記の問題点に鑑みてなされたもので、天井設置する空気調和機のファンコイルユニットにおいて、天井内の限られたスペースでも熱交換器であるコイルの前後に水飛散防止の為の清掃用バッフル板を配置したものである。
すなわち、天井設置する空気調和機のファン、例えば、ファンコイルユニットのようにユニット化されている構造において、熱交換器であるコイルの上流側の枠体側面に上流点検口を設け、該コイルの下流側の枠体側面の下流点検口を設け、前記上流点検口はコイル洗浄時には、上流点検口の蓋を開けて上流点検口の上流側に散水遮断の為の清掃用バッフル板をコイルに平行に挿入し、同様に前記下流点検口の蓋を開けて散水遮断の為の清掃用バッフル板をコイルに平行に挿入し、前記コイルを両側に散水遮断のための清掃用バッフル板を挿入した後に上流点検口に清掃用の洗浄ノズルを挿入してコイルを洗浄することができる空気調和機における熱交換器コイルの清掃方法である。特に、天井吊り隠ペイ型の空気調和機においては、高さの空間余裕がないので、側面からの作業が可能であって有効である。
また、前記熱交換器コイルの清掃方法において、前記コイルの底面にはコイル底板をドレンパンより上に配置するとともに、該コイル底板は枠体側面の下側点検口及び蓋を設けて、コイル洗浄時には該コイル底板を引き抜くことで、コイル底板の水抜き孔が詰まらないようになり、洗浄効率が向上する。
すなわち、請求項１の発明は、天井設置する空気調和機において、熱交換器であるコイルの上流側の枠体側面に上流点検口を設け、該コイルの下流側の枠体側面に下流点検口を設け、前記上流点検口はコイル洗浄時には、上流点検口の蓋を開けて上流点検口の上流側に散水遮断の為の清掃用バッフル板をコイルに平行に挿入し、同様に前記下流点検口の蓋を開けて散水遮断の為の清掃用バッフル板をコイルに平行に挿入し、コイルの底面にはドレンパンと、コイルとドレンパンの間にはコイル底板が設けられ、コイル底板は前記枠体側面に設けられたコイル洗浄用点検口の蓋を開けて前記コイル底板をコイル洗浄時には引き抜くことができ、
前記コイルの上流側と下流側に散水遮断の為の清掃用バッフル板を挿入した後に、上流点検口に清掃用の洗浄ノズルを挿入してコイルを洗浄することができることを特徴とする空気調和機における熱交換器コイルの清掃方法である。
請求項２の発明は、請求項１に記載の空気調和機における熱交換器コイルの清掃方法において、天井吊り隠ペイ型の空気調和機であることを特徴とする。
請求項３の発明は、請求項１又は２に記載の空気調和機における熱交換器コイルの清掃方法において、前記上流点検口、前記下流点検口、及び、前記コイル洗浄用点検口は、枠体の一方の側面に配置したことを特徴とする。 The present invention has been made in view of the above problems, in order to prevent water from splashing in front of and behind the coil, which is a heat exchanger, even in a limited space in the ceiling in a fan coil unit of an air conditioner installed on the ceiling. The cleaning baffle plate is arranged.
That is, in a unitized structure such as a fan of an air conditioner installed on the ceiling, for example, a fan coil unit, an upstream inspection port is provided on the side surface of the frame on the upstream side of the coil which is a heat exchanger, and the coil is provided with an upstream inspection port. A downstream inspection port on the side surface of the frame on the downstream side is provided, and when cleaning the coil, the upstream inspection port opens the lid of the upstream inspection port and a cleaning baffle plate for blocking water sprinkling is parallel to the coil on the upstream side of the upstream inspection port. Similarly, after opening the lid of the downstream inspection port and inserting the cleaning baffle plate for water sprinkling cutoff in parallel with the coil, and inserting the cleaning baffle plate for water sprinkling cutoff on both sides of the coil. This is a method for cleaning the heat exchanger coil in an air conditioner that can clean the coil by inserting a cleaning nozzle for cleaning into the upstream inspection port. In particular, in the ceiling-hung hidden pay type air conditioner, since there is no room for height, it is possible to work from the side, which is effective.
Further, in the method for cleaning the heat exchanger coil, a coil bottom plate is arranged above the drain pan on the bottom surface of the coil, and the coil bottom plate is provided with a lower inspection port and a lid on the side surface of the frame body during coil cleaning. By pulling out the coil bottom plate, the drain holes of the coil bottom plate are not clogged, and the cleaning efficiency is improved.
That is, according to the first aspect of the present invention, in the air conditioner installed on the ceiling, an upstream inspection port is provided on the side surface of the frame body on the upstream side of the coil which is a heat exchanger, and the downstream inspection port is provided on the side surface of the frame body on the downstream side of the coil. When cleaning the coil, the upstream inspection port is provided with a cleaning baffle plate for blocking water sprinkling on the upstream side of the upstream inspection port by opening the lid of the upstream inspection port. Open the lid and insert a cleaning baffle plate parallel to the coil to block water sprinkling , a drain pan is provided on the bottom of the coil, and a coil bottom plate is provided between the coil and the drain pan, and the coil bottom plate is on the side surface of the frame. The coil bottom plate can be pulled out at the time of coil cleaning by opening the lid of the coil cleaning inspection port provided in.
An air conditioner characterized in that a cleaning baffle plate for blocking water sprinkling can be inserted into the upstream side and the downstream side of the coil, and then a cleaning nozzle for cleaning can be inserted into the upstream inspection port to clean the coil. It is a cleaning method of the heat exchanger coil in.
The invention according to claim 2 is a ceiling-hung hidden pay type air conditioner in the method for cleaning the heat exchanger coil in the air conditioner according to claim 1.
The invention of claim 3 is the method for cleaning a heat exchanger coil in the air conditioner according to claim 1, wherein the upstream inspection port, the downstream inspection port, and the coil cleaning inspection port are frame bodies. It is characterized by being arranged on one side.

本発明の空気調和機のファンコイルユニットにおける熱交換器コイルの清掃方法によれば、従来のように、天井内の限られたスペースでもコイルを枠体から降ろすことなく、分解することなく、清掃用バッフル板をコイルの前後に配置することで、コイル以外のファンやファンモータ等の部材に水を飛散させて故障原因となることを防げ、コイルのフィン面まで十分に清掃を行うことできる。
また、枠体側面に設けた上流点検口、下流点検口の蓋を取り外し、この開口を用いてコイル前後の清掃用バッフル板の着脱が可能であり、上流点検口に清掃用の洗浄ノズルを挿入してコイルを洗浄できるので、コイルを移動したり分解したりすることなしに、簡単にコイルのフィン面まで清掃できる。
また、天井設置型、特に、天井吊り隠ペイ型の空気調和機のように、高さの空間余裕がない場合でも、作業員が近傍の天井点検扉から侵入して、空気調和機の枠体側面からの清掃作業が可能である。
また、従来は、コイルの底面に、ドレンパンからエアリークがないように一般にはコイル底板を配置するが、このコイル底板の下部には結露水等を除去するために水抜き孔を設けるが、この水抜き孔を詰まらせると、コイル底板やドレンパンを分解する必要があった。本発明ではコイル底板の着脱が可能であるので、このコイル底板を引き抜いて清掃すればコイル底板の水抜き孔を詰まらせることがなく、洗浄水の排除がスムースになり、清掃作業の効率が向上する。
さらに、上流点検口、下流点検口、及び、コイル洗浄用点検口は、ユニット枠体の一方の側面に配置したので、一方の側面から洗浄作業を行うことができるので、天井設置した状態で作業が可能である。
According to the method for cleaning the heat exchanger coil in the fan coil unit of the air conditioner of the present invention, the coil is not removed from the frame and is not disassembled even in a limited space in the ceiling as in the conventional case. By arranging the baffle plates in front of and behind the coil, it is possible to prevent water from being scattered on members such as fans and fan motors other than the coil and cause a failure, and it is possible to sufficiently clean the fin surface of the coil.
In addition, the lids of the upstream inspection port and downstream inspection port provided on the side surface of the frame can be removed, and the cleaning baffle plate before and after the coil can be attached and detached using this opening, and a cleaning nozzle for cleaning is inserted in the upstream inspection port. Since the coil can be cleaned, the fin surface of the coil can be easily cleaned without moving or disassembling the coil.
In addition, even if there is not enough space for the height, such as a ceiling-mounted type, especially a ceiling-hung hidden pay type air conditioner, a worker can invade through a nearby ceiling inspection door and the frame of the air conditioner. Cleaning work from the side is possible.
Conventionally, a coil bottom plate is generally placed on the bottom surface of the coil so that air leaks from the drain pan. However, a drain hole is provided at the bottom of the coil bottom plate to remove dew condensation water, etc. When the holes were clogged, it was necessary to disassemble the coil bottom plate and drain pan. In the present invention, the coil bottom plate can be attached and detached, so if the coil bottom plate is pulled out and cleaned, the drain holes of the coil bottom plate will not be clogged, the cleaning water will be drained smoothly, and the efficiency of cleaning work will be improved. do.
Furthermore, since the upstream inspection port, the downstream inspection port, and the coil cleaning inspection port are arranged on one side of the unit frame, the cleaning work can be performed from one side, so that the work can be performed with the unit installed on the ceiling. Is possible.

本発明の実施例の天井設置型空気調和機の点検口側の側面からの部分断面図、Partial cross-sectional view from the side of the inspection port side of the ceiling-mounted air conditioner according to the embodiment of the present invention. 図１において、上方からの洗浄ノズルを用いた部分断面図、In FIG. 1, a partial cross-sectional view using a cleaning nozzle from above, 図１のバッフル板の斜視図、FIG. 1 is a perspective view of the baffle plate, 図１のコイル底板の斜視図である。It is a perspective view of the coil bottom plate of FIG.

本発明の空気調和機のファンコイルユニットにおける熱交換器コイルの清掃方法の実施例を、図面を参照して説明する。
Examples of the method for cleaning the heat exchanger coil in the fan coil unit of the air conditioner of the present invention will be described with reference to the drawings.

［実施例］
本発明の空気調和機のファンコイルユニットにおける熱交換器コイルの清掃方法の好適な実施例について説明する。
まず、図１の実施例１において、空気調和機におけるコイル、例えば、ファンとコイルをユニット化したファンコイルユニット(実線)２を含む天井設置に空気調和機１の全体構成であるが、通常、ファンコイルユニット２の上流側には室内還気ＲＡを吸い込む吸込口１１及びフィルター１２が設けられ、ファンコイルユニット２の下流側には加湿器１３及び空調した給気ＳＡを吹き出す吹出口１４が設けられ、下部には結露等を受けるドレンパン１５が配置され、その適所に排水口１５１が設けられている。
ファン２１と熱交換器であるコイル２３を合体したファンコイルユニット２は、概略、上流側に２連のファン２１が駆動モータ２２で連動され駆動されるように配置され、ファン２１の下流側にはコイル２３が配置されている。
コイル２３の上流側の枠体側面２４に比較的大きな面積の上流点検口３を設け、コイル２３の下流側の枠体側面２４の下流点検口５を設けてある。なお、上流点検口３の開口面積が大きいのは、後述するが、洗浄機器９の洗浄ノズルを内部に挿入して清掃作業をするためである。
[Example]
A preferred embodiment of the method for cleaning the heat exchanger coil in the fan coil unit of the air conditioner of the present invention will be described.
First, in the first embodiment of FIG. 1, the entire configuration of the air conditioner 1 is usually set in a ceiling installation including a coil in the air conditioner, for example, a fan coil unit (solid line) 2 in which a fan and a coil are unitized. A suction port 11 for sucking indoor return air RA and a filter 12 are provided on the upstream side of the fan coil unit 2, and a humidifier 13 and an air outlet 14 for blowing out air-conditioned air supply SA are provided on the downstream side of the fan coil unit 2. A drain pan 15 that receives dew condensation or the like is arranged at the lower portion, and a drain port 151 is provided at an appropriate position thereof.
The fan coil unit 2 in which the fan 21 and the coil 23 which is a heat exchanger are combined is generally arranged on the upstream side so that two fans 21 are interlocked and driven by the drive motor 22 and are driven on the downstream side of the fan 21. The coil 23 is arranged in.
An upstream inspection port 3 having a relatively large area is provided on the frame body side surface 24 on the upstream side of the coil 23, and a downstream inspection port 5 on the frame body side surface 24 on the downstream side of the coil 23 is provided. The reason why the opening area of the upstream inspection port 3 is large is that the cleaning nozzle of the cleaning device 9 is inserted inside for cleaning work, which will be described later.

上流点検口３はコイル洗浄時には、上流点検口３の蓋３１(一点鎖線)の蓋固定具である蝶ナット３４で止めを解除して上流点検口３を開口して、上流点検口３の上流側に散水遮断の為の図３に示すように、上流側清掃用バッフル板４を設けるが、上流側清掃用バッフル板４のバッフル板下部４１を枠体内部２５に設けたバッフル板用下レール３２に嵌合し、同様に、バッフル板上部４２をバッフル板用上レール３３に嵌合して、把持部４３を把持して空気の流れに直交する方向であるコイル２３に平行に挿入する。なお、バッフル板４は上流側への散水遮断するためであるから、空気通路の全面を遮断するような面積であることが望ましい。
同様に、コイル２３の下流側の枠体側面２４には下流点検口５を設け、下流点検口５の蓋５１(一点鎖線)の蝶ナット５４で止めを解除して下流点検口５を開口して、下流点検口５にも散水遮断の為の図３に示すように、下流清掃用のバッフル板６を、枠体内部２５に設けたバッフル板用下レール５２に嵌合し、バッフル板上部６２をバッフル板用上レール５３に嵌合して、把持部６３を把持して空気の流れに直交する方向であるコイル２３に平行に挿入する。なお、バッフル板６も下流側への散水遮断するためであるから、空気通路の全面を遮断するような面積であることが望ましい。なお、バッフル板４とバッフル板６とは同じ形状であるので、バッフル板６は図３において括弧書きで表記してある。 When cleaning the coil, the upstream inspection port 3 is released from the wing nut 34, which is a lid fixing tool for the lid 31 (dashed line) of the upstream inspection port 3, and the upstream inspection port 3 is opened to open the upstream inspection port 3 upstream. As shown in FIG. 3 for blocking water sprinkling on the side, a baffle plate 4 for cleaning the upstream side is provided, but a lower rail for the baffle plate in which the lower part 41 of the baffle plate 4 of the baffle plate 4 for cleaning the upstream side is provided inside the frame body 25. It is fitted to 32, and similarly, the upper portion 42 of the baffle plate is fitted to the upper rail 33 for the baffle plate, the grip portion 43 is gripped, and the grip portion 43 is inserted in parallel with the coil 23 in the direction orthogonal to the air flow. Since the baffle plate 4 is for blocking water sprinkling to the upstream side, it is desirable that the area is such that the entire surface of the air passage is blocked.
Similarly, a downstream inspection port 5 is provided on the side surface 24 of the frame on the downstream side of the coil 23, and the downstream inspection port 5 is opened by releasing the stop with the wing nut 54 of the lid 51 (dashed line) of the downstream inspection port 5. As shown in FIG. 3 for shutting off water from the downstream inspection port 5, the baffle plate 6 for downstream cleaning is fitted to the lower rail 52 for the baffle plate provided inside the frame body 25, and the upper part of the baffle plate is fitted. The 62 is fitted to the upper rail 53 for the baffle plate, the grip portion 63 is gripped, and the grip portion 63 is inserted in parallel with the coil 23 in the direction orthogonal to the air flow. Since the baffle plate 6 is also for blocking water sprinkling to the downstream side, it is desirable that the area is such that the entire surface of the air passage is blocked. Since the baffle plate 4 and the baffle plate 6 have the same shape, the baffle plate 6 is shown in parentheses in FIG.

また、コイル２３の底面には抜き孔８２が設けられたコイル底板８が設けられているが、枠体側面２４にコイル底板８のためのコイル洗浄用点検口７及び蓋７１を設け、コイル洗浄時にはコイル底板８を引き抜けば、洗浄水がスムースにドレンパン１５に排水されるとともに、清浄の際にコイル底板８の水抜き孔８２を詰まらせることがない。
なお、コイル底板８の下側には、空気調和機１内部の結露等を受けるドレンパン１５に設け、適所に排水口１５１を設けられているので、清掃時の散水を排水することができる。
なお、上流点検口３、下流点検口５、枠体の下部にあるコイル洗浄用点検口７を全てファンコイルユニット２の一方の枠体側面２４に集めれば、一方の側面から洗浄作業を行うことができるので、空気調和機１を天井設置した状態で清掃を完了することができる。なお、必要であれば、左右両側面に上流点検口３、下流点検口５、コイル洗浄用点検口７に用いても良いことも勿論である。 Further, although the coil bottom plate 8 having a hole 82 is provided on the bottom surface of the coil 23, the coil cleaning inspection port 7 and the lid 71 for the coil bottom plate 8 are provided on the side surface 24 of the frame body to clean the coil. Occasionally, if the coil bottom plate 8 is pulled out, the washing water is smoothly drained to the drain pan 15, and the drain hole 82 of the coil bottom plate 8 is not clogged during cleaning.
In addition, since the drain pan 15 that receives dew condensation inside the air conditioner 1 is provided on the lower side of the coil bottom plate 8 and the drain port 151 is provided at an appropriate position, water sprinkled during cleaning can be drained.
If the upstream inspection port 3, the downstream inspection port 5, and the coil cleaning inspection port 7 at the bottom of the frame are all collected on one frame side surface 24 of the fan coil unit 2, cleaning work can be performed from one side. Therefore, cleaning can be completed with the air conditioner 1 installed on the ceiling. Of course, if necessary, it may be used for the upstream inspection port 3, the downstream inspection port 5, and the coil cleaning inspection port 7 on both the left and right sides.

［清掃手順］
本発明は、以上のような構造であるので、ファンコイルユニット２のコイル２３の清掃に際してはつぎのような手順で行う。
コイル２３には多層のフィンで構成されており、ゴミ等はこのフィンに付着するので十分に高圧水の洗浄水Ｗを散水する必要がある。そこで、先ず上流点検口３の蓋３１の蝶ナット３４を取り外して蓋３１を取り外し、上流側清掃用のバッフル板４を、ファンコイルユニット２側のバッフル板用下レール３２、及びバッフル板用上レール３３に沿って上流側清掃のバッフル板４のバッフル板下部４１及び上部４２に嵌めながら挿入する。
次に、下流点検口５の蓋５１の蝶ナット５４を取り外して蓋５１を取り外し、下流側清掃用のバッフル板６を、ファンコイルユニット２の下流側にバッフル板用下レール５２、及びバッフル板用上レール５３に沿って下流側清掃用のバッフル板６のバッフル板下部６１及び上部６２に嵌めながら挿入する。
さらに、コイル洗浄用点検口７の蓋７１の蝶ナット７２を外して蓋７１を取り外し、コイル底板８の把持部８１を把持して引き抜く。なお、冷房運転直後にコイル２３（コイルフィン）の洗浄を行う際には、ドレン水を引き取りながらコイル底板８を引き抜く。 [Cleaning procedure]
Since the present invention has the above structure, the procedure for cleaning the coil 23 of the fan coil unit 2 is as follows.
The coil 23 is composed of a plurality of fins, and dust and the like adhere to the fins, so that it is necessary to sufficiently sprinkle the washing water W of high-pressure water. Therefore, first, the wing nut 34 of the lid 31 of the upstream inspection port 3 is removed, the lid 31 is removed, the baffle plate 4 for cleaning the upstream side is used, the lower rail 32 for the baffle plate on the fan coil unit 2 side, and the upper baffle plate. It is inserted along the rail 33 while being fitted to the lower part 41 and the upper part 42 of the baffle plate 4 of the baffle plate 4 for upstream cleaning.
Next, the wing nut 54 of the lid 51 of the downstream inspection port 5 is removed, the lid 51 is removed, the baffle plate 6 for cleaning the downstream side is placed, and the lower rail 52 for the baffle plate and the baffle plate are placed on the downstream side of the fan coil unit 2. It is inserted along the upper rail 53 while being fitted to the lower portion 61 and the upper portion 62 of the baffle plate 6 for cleaning the downstream side.
Further, the wing nut 72 of the lid 71 of the coil cleaning inspection port 7 is removed, the lid 71 is removed, and the grip portion 81 of the coil bottom plate 8 is gripped and pulled out. When cleaning the coil 23 (coil fin) immediately after the cooling operation, the coil bottom plate 8 is pulled out while taking out the drain water.

このように、コイルの前後に水よけのバッフル板を挿入し、コイル底板８を引き向いた状態で、図２のように、作業員は大きめの面積の上流点検口３にポンプ９２等を備えた従来の洗浄機器９の洗浄ノズル９１を挿入し空気の上流側から洗浄を行い、図１に示す矢印の洗浄方向に散水(符号Ｗ)し、コイル３の清掃を行う。
こうして、清掃を行った後には、上流側清掃用のバッフル板４、及び下流側清掃用のバッフル板６をファンコイルユニット２から引き抜き、蓋３１、蓋５１を元に戻し、蝶ナット３４、５４等の蓋固定具で固定し、コイル洗浄用点検口７にコイル底板８を挿入し蓋７１を蝶ナット７２等の固定具で元のように固定する。 In this way, with the baffle plates for drainage inserted in front of and behind the coil and the coil bottom plate 8 facing, as shown in FIG. 2, the worker puts a pump 92 or the like in the upstream inspection port 3 having a large area. The cleaning nozzle 91 of the conventional cleaning device 9 provided is inserted to perform cleaning from the upstream side of the air, and water is sprinkled (reference numeral W) in the cleaning direction of the arrow shown in FIG. 1 to clean the coil 3.
After cleaning in this way, the baffle plate 4 for upstream cleaning and the baffle plate 6 for downstream cleaning are pulled out from the fan coil unit 2, the lid 31 and the lid 51 are replaced, and the wing nuts 34 and 54 are replaced. Fix it with a lid fixing tool such as, insert the coil bottom plate 8 into the inspection port 7 for cleaning the coil, and fix the lid 71 as before with a fixing tool such as a wing nut 72.

本発明の実施例の空気調和機１のファンコイルユニット２における熱交換器であるコイル２３の清掃方法は、上述したような構成であるので、従来のように、天井内の限られたスペースでもコイル３を枠体から降ろすことなく、また、コイル２３を分解することもなく、ただ清掃用バッフル板４，６をコイル２３の前後に配置することで、コイル以外のファンや駆動モータ等の部材に水を飛散させることが防げ、コイル２３の塵が付着しやすいフィン面まで清掃を行うことできる。
また、枠体側面２４に設けた上流点検口３、下流点検口５を用いて散水遮蔽の清掃用バッフル板４，６の着脱が可能であり、上流点検口３に清掃用の洗浄ノズル９１を挿入してコイル２３を洗浄できるので、コイル２３を移動したり分解したりすることなしに、簡単にコイル２３のフィン面まで清掃できる。
また、天井設置型、特に、天井吊り隠ペイ型の空気調和機のように、天井空間の高さの空間余裕がない場合でも、作業員が近傍の天井点検扉等から侵入して、空気調和機１の枠体側面２４からの清掃作業が可能である。
また、従来は、コイル２３の底面に、ドレンパン１５からエアリークがないように一般にはコイル底板８を配置するが、このコイル底板８の下部には結露水等を除去するために、水抜き孔８２を設けるが、この水抜き孔８２を詰まらせると、コイル底板８やドレンパン１５を分解する必要があった。本発明ではコイル底板８の着脱が可能であるので、このコイル底板８を引き抜いて清掃すればコイル底板の水抜き孔８３を詰まらせることがなく、洗浄水の排除がスムースになり、清掃作業の効率が向上する。
さらに、上流点検口、下流点検口、及び、コイル洗浄用点検口は、ユニット枠体の一方の側面に配置したので、一方の側面から洗浄作業を行い、実際の天井設置状況で作業が可能である。
なお、本発明の特徴を損なうものでなければ、上記の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 coil 23, which is the heat exchanger in the fan coil unit 2 of the air conditioner 1 of the embodiment of the present invention, has the above-described configuration, even in a limited space in the ceiling as in the conventional case. By simply arranging the cleaning baffle plates 4 and 6 in front of and behind the coil 23 without lowering the coil 3 from the frame and disassembling the coil 23, members such as fans and drive motors other than the coil can be used. It is possible to prevent water from being scattered on the coil 23 and to clean the fin surface to which dust easily adheres to the coil 23.
Further, the cleaning baffle plates 4 and 6 for sprinkling shield can be attached and detached by using the upstream inspection port 3 and the downstream inspection port 5 provided on the side surface 24 of the frame body, and the cleaning nozzle 91 for cleaning is attached to the upstream inspection port 3. Since the coil 23 can be inserted and cleaned, the fin surface of the coil 23 can be easily cleaned without moving or disassembling the coil 23.
In addition, even if there is not enough space at the height of the ceiling space, such as a ceiling-mounted type, especially a ceiling-suspended hidden pay type air conditioner, a worker can invade through a nearby ceiling inspection door or the like to harmonize the air. Cleaning work can be performed from the side surface 24 of the frame body of the machine 1.
Further, conventionally, the coil bottom plate 8 is generally arranged on the bottom surface of the coil 23 so as not to cause air leakage from the drain pan 15, but a drain hole 82 is provided in the lower portion of the coil bottom plate 8 in order to remove dew condensation water and the like. However, when the drain hole 82 was clogged, it was necessary to disassemble the coil bottom plate 8 and the drain pan 15. In the present invention, the coil bottom plate 8 can be attached and detached. Therefore, if the coil bottom plate 8 is pulled out and cleaned, the drain hole 83 of the coil bottom plate will not be clogged, and the cleaning water can be smoothly removed for cleaning work. Efficiency is improved.
Furthermore, since the upstream inspection port, downstream inspection port, and coil cleaning inspection port are located on one side of the unit frame, cleaning work can be performed from one side and the work can be performed in the actual ceiling installation situation. be.
Needless to say, the present invention is not limited to the above embodiment as long as it does not impair the characteristics of the present invention.

Ｗ・・洗浄水、ＲＡ・・還気、ＳＡ・・給気
１・・空気調和機(全体)、１１・・吸込口、１２・・フィルター、
１３・・加湿器、１４・・吹出口、１５・・ドレンパン、１５１・・排水口
２・・ファンコイルユニット、２１・・ファン、２２・・駆動モータ、
２３・・コイル（熱交換器）、２４・・ユニット枠体側面、２５・・枠体内部
３・・上流点検口、３１・・蓋、３２・・バッフル板用下レール、
３３・・バッフル板用上レール、３４・・蝶ナット（蓋固定具）、
４・・上流側清掃用のバッフル板、４１・・バッフル板下部、
４２・・バッフル板上部、４３・・把持部、
５・・下流点検口、５１・・蓋、５２・・バッフル板用下レール、
５３・・バッフル板用上レール、５４・・蝶ナット（蓋固定具）、
６・・下流側清掃用のバッフル板、６１・・バッフル板下部、
６２・・バッフル板上部、６３・・把持部、
７・・コイル洗浄用点検口、７１・・蓋、７２・・蝶ナット（蓋固定具）、
８・・コイル底板、８１・・把持部、８２・・水抜き孔、
９・・洗浄機器、９１・・洗浄ノズル、９２・・ポンプ
W ... Washing water, RA ... Return air, SA ... Air supply 1 ... Air conditioner (whole), 11 ... Suction port, 12 ... Filter,
13 ... Humidifier, 14 ... Outlet, 15 ... Drain pan, 151 ... Drain port 2 ... Fan coil unit, 21 ... Fan, 22 ... Drive motor,
23 ... Coil (heat exchanger), 24 ... Unit frame side, 25 ... Frame inside 3 ... Upstream inspection port, 31 ... Lid, 32 ... Lower rail for baffle plate,
33 ... Upper rail for baffle plate, 34 ... Wing nut (closure fixture),
4 ... Baffle plate for cleaning the upstream side, 41 ... Lower part of the baffle plate,
42 ... Baffle plate upper part, 43 ... Grip part,
5 ... downstream inspection port, 51 ... lid, 52 ... lower rail for baffle plate,
53 ... Upper rail for baffle plate, 54 ... Wing nut (closure fixture),
6 ... Baffle plate for cleaning the downstream side, 61 ... Lower part of the baffle plate,
62 ... Baffle plate upper part, 63 ... Grip part,
7. Coil cleaning inspection port, 71 ... lid, 72 ... wing nut (closure fixture),
8 ... Coil bottom plate, 81 ... Grip, 82 ... Drain hole,
9 ... Cleaning equipment, 91 ... Cleaning nozzle, 92 ... Pump

Claims

In the air conditioner installed on the ceiling
An upstream inspection port is provided on the side surface of the frame body on the upstream side of the coil, which is a heat exchanger, and a downstream inspection port is provided on the side surface of the frame body on the downstream side of the coil.
When cleaning the upstream inspection port, open the lid of the upstream inspection port and insert a cleaning baffle plate parallel to the coil on the upstream side of the upstream inspection port to block water sprinkling. Similarly, the lid of the downstream inspection port is closed. Open and insert a cleaning baffle plate to block water sprinkling in parallel with the coil.
A drain pan is provided on the bottom surface of the coil, and a coil bottom plate is provided between the coil and the drain pan. The coil bottom plate is used when cleaning the coil bottom plate by opening the lid of the coil cleaning inspection port provided on the side surface of the frame. Can be pulled out,
An air conditioner characterized in that a cleaning baffle plate for blocking water sprinkling can be inserted on the upstream side and the downstream side of the coil, and then a cleaning nozzle for cleaning can be inserted into the upstream inspection port to clean the coil. How to clean the heat exchanger coil in.

The method for cleaning a heat exchanger coil in the air conditioner according to claim 1, wherein the air conditioner is a ceiling-hung hidden pay type air conditioner.

The heat exchanger coil in the air conditioner according to claim 1 or 2, wherein the upstream inspection port, the downstream inspection port, and the coil cleaning inspection port are arranged on one side surface of the frame body. Cleaning method.