JPH0455694A - Method and device foe cleaning of heat exchanger for air conditioner - Google Patents

Abstract

PURPOSE:To facilitate the mounting of a cleaning device so as to cope with the configuration or the like of a casing and improve cleaning efficiency by a method wherein the receiving member of cleaning water is manufactured at the site of work and cleaning water is sprayed against the heat exchanger directly by a worker. CONSTITUTION:The main body 2 of an air-conditioning machine, attached to a ceiling 12, is dismantled at the site of work to remove a lower surface member and a fan from a casing 21. On the other hand, a cleaning water receiver 5, coping with the casing 21, is formed by cutting a light-weight board and the like while a cover 6 is attached to produce the receiving member 4 of cleaning water by attaching a cover 6. Thereafter, the upper end of a cover 6 is attached to a hanging metal 13 by a string or the like to hang the receiving member 4 into a casing 21. Successively, a cleaning water injecting member 7 is inserted into the casing 21 from the opening 53 of a cleaning water receiver 5 and the heat exchanger 22 is cleaned by spraying the cleaning water against the heat exchanger 22 while monitoring it through an opening 53 to wash the heat exchanger 22. Drain is reserved into a cleaning water receiver 5 and is discharged out of a discharging port 54.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method and apparatus for cleaning a heat exchanger in various types of air conditioners such as those installed in the ceiling.

(Prior Art) In general, for example, a ceiling-embedded air conditioner is installed by having a casing with an open bottom surface embedded in a ceiling board, as disclosed in Japanese Patent Application Laid-open No. 1-155098. A heat exchanger, a centrifugal fan, etc. are housed in the casing, and a front panel is detachably attached to the lower opening of the casing.

Then, the centrifugal fan is driven to suck indoor air into the casing from the central suction port on the front panel, exchange heat with the heat exchanger, and blow out cold air into the room from the side outlet on the front panel. There is.

In the air conditioner described above, although a filter is provided at the suction port, depending on usage conditions, the heat exchanger may become clogged and the heat exchange efficiency may decrease.

Therefore, as shown in FIG. 5, a heat exchanger cleaning device has been proposed. The heat exchanger cleaning device has a cleaning water cover (a
) is formed into a funnel shape by a metal plate or the like, and a drainage channel (b) is formed at the center of the bottom surface.
) through the cleaning water nozzle (C) or the cleaning water cover (a).
It is located inside and is configured to be rotatable.

When cleaning the heat exchanger, the front panel etc. are removed and the heat exchanger (e) is disassembled into a state in which only the heat exchanger (e) is installed inside the casing (d), and then the cleaning water cover ( Fix a) with the mounting bracket (f).

Thereafter, while rotating the cleaning water nozzle (c), cleaning water is sprayed onto the heat exchanger (e) to clean the heat exchanger (e).

(Problems to be Solved by the Invention) In the heat exchanger cleaning device described above, the cleaning water cover (
Since a) is formed of a metal plate or the like and has a specific shape, there is a problem that it lacks versatility. In other words, the above-mentioned air conditioners are manufactured in various shapes depending on the air conditioning capacity and design, and in the above-mentioned washing equipment, the washing water is There is a problem in that the cover (a) must be manufactured in a wide variety of ways.

Furthermore, since the cleaning water nozzle (c) is rotated to spray the cleaning water onto the heat exchanger (e), there is a problem in that it is not possible to clean every corner of the heat exchanger (e). That is, since it is difficult to adjust the spraying range according to the shape of the heat exchanger (e), there are problems in that cleaning efficiency is poor and reliability is low.

The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to enable easy installation in accordance with the shape of the casing, and to improve cleaning efficiency.

(Means for Solving the Problems) In order to achieve the above object, the means taken by the present invention is to manufacture a washing water receiving member at a work site, etc., and to have the worker spray the washing water directly onto the heat exchanger. This is how it was done.

Specifically, as shown in FIG. 1, the measures taken by the invention according to claim (1) are as follows: first, a heat exchanger (22) and a fan (23) are housed in a casing (21); ,
The air conditioner main body (2) is constructed by detachably attaching the lower surface member (24) to the casing (21), while the air conditioner main body (2) is connected to a hanging metal fitting (24) fixed to the ceiling (12).
The casing (21) is attached to the ceiling (13).
2) A heat exchanger cleaning method for an air conditioner suspended in the air conditioner is targeted.

A side piece (52) is provided upright on the outer peripheral edge of the bottom plate (51), and an opening (53) and a drain port (54) are provided in the bottom plate (51).
is opened to form a wash water receiver (5), and the lower end of the cover (6) is connected to the side piece (52) of the wash water receiver (5) to prepare a wash water receiver member (4). do. On the other hand, after removing the lower surface member (24) from the casing (21), attach the upper end of the cover (6) to the hanging fitting (13) and attach the receiving member ( 4) is suspended from the casing (21). Thereafter, the cleaning water spouting member (7) is inserted into the casing (21) through the opening (53) of the cleaning water receiver (5), and the cleaning water is heated by directly operating the cleaning water spouting member (7). The heat exchanger (22) is sprayed to clean the heat exchanger (22).

In addition, the means taken by the invention according to claim 2 first include a heat exchanger (22) and a fan (2) in the casing (21).
3) is housed, and the lower surface member (24) is removably attached to the casing (21), and the air conditioner main body (2) is housed.
), while the air conditioner main body (2) is constructed of a ceiling (12
) to the hanging bracket (13) fixed to the casing (21).
The present invention is intended for a heat exchanger cleaning device in an air conditioner that is attached to and suspended from the ceiling (12).

A heat exchanger (22) is installed inside the casing (21).
A washing water receiving member (4) is suspended from the air conditioner main body (2), which has been disassembled into a state in which water remains, so as to cover the lower opening of the casing (21). Furthermore, the receiving member (4)
The washing water receiver (5) has a side piece (52) erected on the outer peripheral edge of the bottom plate (51), the lower end is attached to the side piece (52) of the wash water receiver (5), and the upper end is attached to the above-mentioned hanging metal fitting. (13) and covers (6) connected to each other.

In addition, the washing water receiver (5) is equipped with a heat exchanger (22).
An opening (53) through which a cleaning water spouting member (7) for spraying cleaning water passes and through which cleaning work can be monitored;
) and a rim material (55) that stands up on the periphery and dams up the washing water;
A drain port (54) for washing water is formed.

Furthermore, the measures taken by the invention according to claim (3) are as shown in FIG.
Instead of 5), a heat exchanger (22) is installed in the washing water receiver (8).
An opening (82) through which the cleaning water spouting member (7) that sprays cleaning water passes, a drainage port (83) for the cleaning water, a viewing port (84) through which cleaning work can be observed, and Work opening (
85), a transparent sheet (86) is provided in the observation port (84), and waterproof gloves (87) are provided in the work port (85).

(Function) With the above configuration, in the inventions according to claims (1) and (2), first, at the work site, a worker disassembles the air conditioner main body (2) attached to the ceiling (12), and (2
4), the fan (23), etc. are removed from the casing (21), and the heat exchanger (22) is disassembled into a state attached to the casing (21).

On the other hand, the worker cuts various types of lightweight boards at the work site to form a wash water receptacle (5) corresponding to the casing (21), and
A cover (6) is attached to the to create a washing water receiving member (4).

Then, attach the upper end of the cover (6) to the casing (2).
The receiving member (4) is hung from the casing (21) by attaching it to the hanging fitting (13) of 1) with a string or the like.

Next, the operator inserts the cleaning water spouting member (7) into the casing (21) through the opening (53) of the cleaning water receiver (5), and while watching from the opening (53), The member (7) is operated to spray cleaning water onto the heat exchanger (22) to clean the heat exchanger (22). The waste water that has washed the heat exchanger (22) is collected in the wash water receiver (5) and discharged from the drain port (54).

Furthermore, in the invention according to claim (3), the operator can use the viewing port (
84), while observing the work through the transparent sheet (86), put your hand in waterproof gloves (87), and touch the cleaning water nozzle (7).
) will be operated.

(Effect of the invention) Therefore, according to the inventions of claims (1) and (2),
Since the cleaning water receiving member (4) can be made to match the shape of the casing (21), cleaning work can be easily performed on air conditioner bodies (2) of various shapes. Can perform a wide range of cleaning tasks.

Furthermore, since the washing water spouting member (7) is directly operated and the washing water is sprayed onto the heat exchanger (22) while checking the work, the heat exchanger (22) is reliably sprayed to every corner. The cleaning efficiency can be improved, and the reliability can be improved. Further, even if the heat exchanger (22) has a different shape, it can be reliably cleaned, and the cleaning work can be carried out in a short time by one person.

Further, according to the invention according to claim (3), a transparent sheet (
86) and waterproof gloves (87), cleaning water does not splash onto the hands of the worker, and the cleaning work can be performed hygienically.

(Example) Hereinafter, an example of the present invention will be described in detail based on the drawings.

As shown in Figures 2 and 3, (1) is a ceiling-embedded air conditioner, in which the air conditioner main body (2) is attached to a ceiling plate (1).
1) and is suspended from the concrete slab (12) that is the ceiling by penetrating the opening (11a).

The air conditioner main body (2) has a heat exchanger (22), a centrifugal fan (23), etc. housed in a casing (21), and a front panel (2) which is a lower surface member in the casing (21).
24) are detachably attached. The casing (21) is formed into a substantially rectangular shape and has an open bottom surface, and is connected to the concrete slab (12).
It is attached on the side to a hanging metal fitting (13) fixed to the.

The front panel (24) has a suction port (24a) in the center,
Air outlets (24b) are provided on the sides,
The front panel (24) has an opening (11a) in the ceiling plate (11).
) is attached to the lower opening of the casing (21) so as to cover the casing (21).

The heat exchanger (22) is located on the side inside the casing (21) and is attached to the top plate of the casing (21). An internal member (25) of a casing (21) which also serves as a drain pan is detachably attached to the casing (21) below the heat exchanger (22). Further, the centrifugal fan (23) is placed in the center of the casing (21) and connected to a motor (26) attached to the casing (21).

Therefore, the centrifugal fan (2) is driven by driving the motor (26).
3), the indoor air is sucked into the casing (21) through the suction port (24a), passes through the blades of the centrifugal fan (23), and is cooled or heated by exchanging heat with the refrigerant in the heat exchanger, resulting in air conditioning. It becomes air. Thereafter, the conditioned air is blown into the room from the outlet (24b), and the room is air-conditioned.

Next, in the air conditioner (1), as shown in FIG. 1, the cleaning device (3) for the heat exchanger (22), which is a feature of the invention, will be explained.

The cleaning device (3) cleans the heat exchanger (22) in a state where only the heat exchanger (22) remains in the casing (21).
). The washing device (3) is configured such that a washing water receiving member (4) is suspended from and attached to the casing (21), and the washing water receiving member (4) is attached to the casing (21). A cover (6) for preventing scattering is connected to the receiver (5).

The washing water receptacle (5) is formed of a lightweight board, for example, not shown or with cardboard glued to both sides of the foam material, and a lightweight board made of aluminum foil or glued to the outer surface of the cardboard. It consists of a board. The washing water receptacle (5) is formed by a side piece (52) erected on the outer peripheral edge of the bottom plate (51) that substantially coincides with the lower opening of the casing (21), and the side piece (52) , for example, is attached to the bottom plate (51) by adhesive tape.

Furthermore, a cleaning opening (5) is provided in the center of the bottom plate (51).
3) and a drainage outlet (54) in the corner. The opening (53) is formed in a size that allows the insertion of the cleaning water nozzle (7), which is a cleaning water spouting member, and the operator's face (F). The edge material (55) is attached in an upright position with adhesive tape or the like.

The cover (6) is formed into a sheet shape from a flexible synthetic resin material, and the lower end of the cover (6) is attached to a pin (6).
1) is connected to the inside of the side piece (52) of the washing water receiver (5), while the upper end is connected to the opening (11a) of the ceiling plate (11).
The hanging fitting (1) is attached by a fastening material (62) such as a string through the
3). The cover (6) covers the lower four sides of the casing (21), while the wash water receiver (5) is made by the worker at the work site, and ) is configured to spray cleaning water from the cleaning water nozzle (7) onto the heat exchanger (22).

Next, the structure of the cleaning method for the heat exchanger (22) will be explained together with the cleaning operation.

First, at the work site, a worker appropriately cuts a lightweight board to create a wash water receptacle (5) to match the casing (21). That is, a bottom plate (51) that matches the casing (21) is formed, an opening (53) and a drain port (54) are formed in the bottom plate (51), and side pieces (52) and edge material (55) are formed. is attached to the bottom plate (51) with adhesive tape or the like. A cover (6) is installed inside the side piece (52).
Attach the lower end of the member with a pin (61) to complete the preparation of the washing water receiving member (4).

On the other hand, the air conditioner body (2) removes the front panel (24) from the casing (21), and also removes the internal members (25), centrifugal fan (23), motor (24), etc., and heats up inside the casing (21). It appears that only the exchanger (22) remains.

Thereafter, the cover (6) of the receiving member (4) is passed through the opening (11a) of the ceiling plate (11), and its upper end is attached to the hanging fitting (13) using the fastening material (62), and the lower opening of the casing (21) is closed. It is covered by the receiving member (4).

Next, the operator inserts the cleaning water nozzle (7) into the casing (21) through the opening (53),
) into the opening (53) 1. While monitoring the cleaning operation, cleaning water is sprayed from the cleaning water nozzle (7) onto the heat exchanger (22) to clean the heat exchanger (22).

Then, the waste water and the like that washed the heat exchanger (22) is stored in the wash water receiver (5) and discharged from the drain port (54).

After completing this cleaning work, remove the receiving member (4),
The centrifugal fan (23) etc. will need to be reassembled.

Therefore, the washing water receiving member (4) is attached to the casing (21).
Since it can be made to suit the shape of the air conditioner main body (2), cleaning work can be easily performed on air conditioner main bodies (2) of various shapes, and a wide range of cleaning work can be performed.

Furthermore, since the cleaning water nozzle (7) is directly operated and the cleaning water is sprayed onto the heat exchanger (22) while checking the work, the heat exchanger (22) can be reliably cleaned from every corner. It is possible to improve cleaning efficiency and reliability. Also,
Even if the heat exchanger (2) has a different shape, the heat exchanger (2) can be reliably cleaned, and the cleaning work can be carried out in a short time by one person.

FIG. 4 shows another washing water receiver (8),
A cleaning opening (82) and a drain port (83) are provided on the bottom plate (81).
), a viewing port (84) and a working port (85) are provided, and a transparent sheet (86) is provided in the viewing port (84) and
85) is provided with waterproof gloves (87). The bottom plate (81) is made of a lightweight board as in the previous embodiment, and has side pieces (88) erected thereon.

On the other hand, the opening (85) is formed in a size such that it can be slidably fitted into the cleaning water nozzle (7), and the viewing port (84) and the working port (85) are surrounded by a rim material (89) or a raised material. installed on. Further, the transparent sheet (86) and waterproof gloves (87) are located inside the washing water receiver (8) and attached to the edge material (89).

When cleaning the heat exchanger (22), the cleaning water nozzle (7) is inserted into the casing (21) through the opening (82), while the operator inserts his/her hand into waterproof gloves (87). The cleaning water nozzle (7) is held and operated, and the working status is monitored through the transparent sheet (86).

Therefore, the transparent sheet (86) and waterproof gloves (87)
Since this is provided in the wash water receiver (8), the wash water does not come into contact with the hands of the operator, and the washing work can be carried out hygienically.

Other configurations, functions, and effects are the same as in the previous embodiment.

Note that the air conditioner (1) of the present invention is not limited to the embodiments, that is, it may be a ceiling-hanging type air conditioner, and the shape of the casing (21) and the heat exchanger (22 ) is not limited to the example.

[Brief explanation of the drawing]

1 to 4 show embodiments of the present invention, FIG. 1 is a sectional view of the cleaning device showing the cleaning state, FIG. 2 is a sectional view of the air conditioner, and FIG. 3 is a perspective view of the same. It is. FIG. 4 is a sectional view of a cleaning device showing another embodiment. FIG. 5 shows a conventional example and is a schematic diagram of a cleaning device. (1)...Air conditioner (2)...Air conditioner body (3)...Cleaning device (4)...Receiving member (5), (8)...Washing water receiver (6) ... Cover (7) ... Washing water nozzle (21) ... Casing (22) ... Heat exchanger (23) ... Centrifugal fan (24) ... Front panel (51), ( 81)... Bottom plate (52), (88)... Side piece (53), (82)... Opening (54), (83)... Outlet (55), (89)...・Edge material (84)...Watching port (85)...Working port (86)...Transparent sheet (87)...Waterproof gloves

Claims (3)

[Claims] (1) A heat exchanger (22) and a fan (23) are housed in the casing (21), and the casing (21)
) is removably attached to the air conditioner main body (2), while the air conditioner main body (2) is attached to the casing on a hanging bracket (13) fixed to the ceiling (12). (21) is attached to the ceiling (12) and is suspended from the ceiling (12). An opening (53) and a drain port (54) are formed in the bottom plate (51) to form a washing water receptacle (5), and the washing water receptacle (5) is formed in the bottom plate (51).
While preparing a washing water receiving member (4) by connecting the lower end of the cover (6) to the side piece (52) of 5), after removing the lower surface member (24) from the casing (21), Attach the upper end of the cover (6) to the hanging fitting (13) and suspend the receiving member (4) from the casing (21) so as to cover the lower opening of the casing (21), and then attach the receiving member (4) to the washing water receiver. Insert the cleaning water spouting member (7) into the casing (21) through the opening (53) of (5), and directly operate the cleaning water spouting member (7) to supply the cleaning water to the heat exchanger (22). A method for cleaning a heat exchanger (22) of an air conditioner, the method comprising cleaning the heat exchanger (22) by spraying. (2) A heat exchanger (22) and a fan (23) are housed in the casing (21), and the casing (21)
) is removably attached to the air conditioner main body (2), while the air conditioner main body (2) is attached to the casing on a hanging bracket (13) fixed to the ceiling (12). (21) is attached and suspended from the ceiling (12), the heat exchanger cleaning device for an air conditioner is disassembled into a state where the heat exchanger (22) remains in the casing (21). A washing water receiving member (4) is suspended from the air conditioner main body (2) so as to cover the lower opening of the casing (21), and the receiving member (4) is attached to the outer peripheral edge of the bottom plate (51). a washing water receiver (5) with a side piece (52) erected on the side;
A cover (6) whose lower end is connected to the side piece (52) of the washing water receiver (5) and whose upper end is connected to the hanging fitting (13).
On the other hand, the washing water receiver (5) includes:
An opening (53) through which a cleaning water spouting member (7) for spraying cleaning water onto the heat exchanger (22) passes, and through which cleaning work can be monitored.
A heat exchanger for an air conditioner, characterized in that a rim material (55) that stands up around the periphery of the opening (53) and dams the cleaning water, and a drainage port (54) for the cleaning water are formed. Vessel cleaning equipment. (3) A heat exchanger (22) and a fan (23) are housed in the casing (21), and the casing (21)
) is removably attached to the air conditioner main body (2), while the air conditioner main body (2) is attached to the casing on a hanging bracket (13) fixed to the ceiling (12). (21) is attached and suspended from the ceiling (12), the heat exchanger cleaning device for an air conditioner is disassembled into a state where the heat exchanger (22) remains in the casing (21). A washing water receiving member (4) is suspended from the air conditioner main body (2) so as to cover the lower opening of the casing (21), and the receiving member (4) is attached to the outer peripheral edge of the bottom plate (81). a washing water receiver (8) with a side piece (88) erected thereon;
A cover (6) whose lower end is connected to the side piece (88) of the washing water receiver (8) and whose upper end is connected to the hanging fitting (13).
On the other hand, the washing water receiver (8) includes:
An opening (82) through which a cleaning water jetting member (7) that sprays cleaning water onto the heat exchanger (22) passes, and a cleaning water drain port (83).
A viewing port (84) through which the cleaning work can be observed and a work port (85) through which the worker's hands pass are opened, and a transparent sheet (86) is provided in the viewing port (84). A heat exchanger cleaning device for an air conditioner, characterized in that the work opening (85) is provided with waterproof gloves (87).