JPH11118173A - Floor placement type of air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable the cleaning work without separating a heat exchanger from a unit so as to shorten the work time, by making the roof plate and rear plate of a cabinet into split structure, and making the under partition plate of the heat exchanger into split structure. SOLUTION: Since the air sucked in by a blower 1 is sent to a heat exchanger, a dirt adheres to the primary side of the heat exchanger 3. The roof plate 5 and rear plate 6 of a cabinet are made in split structure capable of removal by screwing, insertion, or the like. Therefore, the user can draw out the heat exchanger 3 and see the rear side of the heat exchanger without taking off the roof plate 5 and removing a pipe from the heat exchanger 4. Then, the cleaning work of the heat exchanger 3 from above the unit becomes possible by putting a cleaning nozzle 15 into the unit from the topside of the unit. Moreover, since the partition plate 8 under the heat exchanger 3 is made in split structure capable of removal by screwing, insertion, or the like, there is no necessity to remove a blower 1 and a motor 2 at cleaning by taking off this service plate.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a blower,
The present invention relates to an air-push-type floor-mounted air conditioner having a heat exchanger arranged on the upper side, and in particular, without removing the connection between the heat exchanger piping and the on-site piping and without separating the heat exchanger from the unit. The present invention relates to an air conditioner that enables a cleaning operation.

[0002]

2. Description of the Related Art In an air-push-type floor-standing air conditioner in which a blower is disposed on a lower side and a heat exchanger is disposed on an upper side, dirt adheres to the primary side of the heat exchanger, but the primary side has heat exchange. Due to the back side of the unit, dirt could not be completely removed by washing the heat exchanger from the front side of the unit. In addition, the rear side of the unit is close to the wall, and it is impossible to wash the heat exchanger from the rear side. Furthermore, because of the structure of the unit, it is difficult to cure the blower and the motor, so conventionally, the refrigerant in the heat exchanger is recovered, the connection between the heat exchanger piping and the on-site piping is disconnected, and the heat exchanger is separated from the unit. In this way, heat exchanger cleaning work is performed.

[0003]

In the above prior art, the refrigerant in the heat exchanger is recovered and the connection between the heat exchanger piping and the on-site piping is disconnected, so that a small amount of the refrigerant is discharged to the outside. . After the heat exchanger cleaning work is completed, reconnect the heat exchanger pipes and the on-site pipes, evacuate the heat exchangers, replenish the released refrigerant, and confirm the cycle operation. Was. In particular, it is difficult when a plurality of indoor units are connected to one outdoor unit. External discharge of the refrigerant by separating the heat exchanger from the unit is also a problem in terms of the global environment such as destruction of the ozone layer. Furthermore, the contamination of the heat exchanger deteriorates the heat exchange efficiency, causing an increase in the high pressure of the refrigeration cycle during heating, and narrowing the operating range when a new refrigerant is used in the refrigeration cycle in the future. Removal of dirt is an important issue.

[0004] An object of the present invention is to solve the above-mentioned problems by enabling a heat exchanger cleaning operation without disconnecting the heat exchanger piping from the on-site piping and without separating the heat exchanger from the unit. An object of the present invention is to provide an air conditioner that saves time.

[0005]

In order to solve the above-mentioned problems, the present invention relates to an air-push-type floor-standing air conditioner in which a blower is provided on a lower side and a heat exchanger is provided on an upper side, and a top plate of a cabinet, The rear plate has a divided structure, and the partition plate below the heat exchanger has a divided structure. The top plate and the rear plate of the cabinet are divided, so the top plate is removed,
By pulling out the heat exchanger to the front without removing the heat exchanger piping and the on-site piping, it is possible to clean the back side of the heat exchanger from the upper side of the unit. In addition, since the partition plate on the lower side of the heat exchanger has a divided structure, curing of the blower and the motor on the lower side becomes possible.

Therefore, it is possible to perform a heat exchanger cleaning operation without recovering the refrigerant in the heat exchanger, disconnecting the connection between the heat exchanger piping and the on-site piping, and separating the heat exchanger from the unit. It can be significantly reduced.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIG. FIG. 1 is a structural view (side view) of an air push-in type floor-standing air conditioner in which a blower according to an embodiment is arranged on a lower side and a heat exchanger is arranged on an upper side.
The floor-mounted air conditioner includes a blower 1, a motor 2, a heat exchanger 3, a heat exchanger pipe 4, a top plate 5, a rear plate 6, a water receiver 7, a partition plate 8, an electric component box 9, a front partition plate 10, Side plate 11, bottom plate 12
It is composed of Usually, the rear side of the unit is brought close to the wall, and the on-site piping 13 is connected to the wall. The arrows in the figure indicate the flow of air. The air sucked in by the blower 1 is sent to the heat exchanger 3, exchanges heat while passing through the heat exchanger 3, and is blown out. Therefore, dirt adheres to the primary side of the heat exchanger 3.

Conventionally, in order to clean the heat exchanger 3, the refrigerant in the heat exchanger 3 is recovered, the connection between the heat exchanger pipe 4 and the on-site pipe 13 is removed, and the heat exchanger 3 is removed from the unit. Was separated. This is the cabinet top plate 5,
This is because the rear plate 6 was integrated, so that washing from the upper side was impossible, and it was difficult to cure the blower 1 and the motor 2. The heat exchanger 3 is separated from the unit and the heat exchanger 3
After washing, the heat exchanger pipe 4 and the on-site pipe 13 are reconnected,
The heat exchanger 3 must be evacuated to replenish the released refrigerant and confirm the cycle operation, which requires a long working time.

FIG. 2 shows a structural diagram of the top plate 5 and the rear plate 6 of the cabinet according to one embodiment of the present invention. The top plate 5 and the rear plate 6 of the cabinet have a detachable divided structure such as screwing and insertion, so that the top plate 5 is removed and the heat exchanger piping 4 is removed.
By using the elastic force of the copper pipe without removing the on-site pipe 13 and pulling out the heat exchanger 3 to the front side, the back of the heat exchanger 3 can be seen. The cleaning operation of the heat exchanger 3 from the upper side of the unit was made possible by placing the heat exchanger 3 in the inside. Further, the partition plate 8 on the lower side of the heat exchanger 3 according to one embodiment of the present invention.
FIG. 3 shows a structural diagram of. The partition plate 8 on the lower side of the heat exchanger 3 has a service plate 8a and a detachable divided structure such as screwing and insertion, and the blower 1 and the motor 2 below the service hole formed by removing the service plate.
Curing sheet 14 can be attached, and there is no need to remove the blower 1 and the motor 2 at the time of washing.

Next, FIG. 4 shows a method of cleaning the heat exchanger 3 according to an embodiment of the present invention.

The top plate 5, the front partition plate 10 and the electric component box 9 are removed, the service plate 8a of the dividable partition plate 8 below the heat exchanger 3 is removed, and the blower 1 and the motor 2 below are cured. Cover with sheet 14. After curing, the heat exchanger 3 is pulled out to the front side of the unit as shown in FIG. 4, and the cleaning nozzle 15 is inserted from above the unit to wash the heat exchanger 3.

By this cleaning method, the heat exchanger 3 can be cleaned without removing the heat exchanger pipes 4 and the on-site pipes 13, thereby greatly reducing the operation time and eliminating the discharge of refrigerant.

[0013]

According to the heat exchange cleaning method of the present invention,
Without removing the heat exchanger pipe 4 and the on-site pipe 13 and without separating the heat exchanger 3 from the unit, the heat exchanger 3 can be cleaned, and the working time can be greatly reduced, and the discharge of refrigerant can be reduced. Can be eliminated.

[Brief description of the drawings]

FIG. 1 is a structural view (side view) of an air push-in type floor-standing air conditioner in which a blower according to an embodiment is arranged on a lower side and a heat exchanger is arranged on an upper side.

FIG. 2 is a structural diagram of a top plate and a rear plate of a cabinet according to the embodiment.

FIG. 3 is a structural view of a lower partition plate of a heat exchanger according to an embodiment;

FIG. 4 is a diagram showing a heat exchanger cleaning method according to an embodiment;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Blower, 2 ... Motor, 3 ... Heat exchanger, 4 ... Heat exchanger piping, 5 ... Top plate, 6 ... Rear plate, 7 ... Water receiver, 8 ... Partition plate,
8a: service plate, 9: electric box, 10: front partition plate, 11: side plate, 12: bottom plate, 13: on-site piping, 14 ...
Curing sheet, 15: Cleaning nozzle, 16: Screw.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Shinichi Kosugi 390 Muramatsu, Shimizu-shi, Shizuoka Prefecture Air Conditioning Systems Division, Hitachi, Ltd.

Claims (1)

[Claims] 1. An air-push-type floor-standing air conditioner having a heat exchanger, a water receiver, a blower, and a control device in a cabinet, wherein a blower is provided on a lower side and a heat exchanger is provided on an upper side. The top plate and the rear plate have a split structure, and the partition plate on the lower side of the heat exchanger has a split structure, so that the heat exchanger can be separated from the unit without disconnecting the connection between the heat exchanger piping and the on-site piping. A floor-standing air conditioner characterized by enabling heat exchanger cleaning work without the need for cleaning.