JPH0798144A - Air conditioner cleaning device - Google Patents

Abstract

(57) [Summary] [Purpose] It is possible to automatically clean the dust adhering to the surface of the heat exchanger at the required time and for the required time. Also, no manual work is required, and maintenance is not required. An object is to provide a cleaning device for an air conditioner. [Structure] The amount of dust adhering to the surface of the heat exchanger 102 can be automatically determined by the differential pressure of the differential pressure gauges 1a, 1b, and a preset differential pressure signal is transmitted to the control box 2 for automatic In addition, the solenoid valve 3 can be opened / closed or the drain pump 4 can be operated / stopped, so that the water spray from the water spray port 107 can be automatically started / stopped.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning device for an air conditioner installed in a building or the like for air conditioning the room.

[0002]

2. Description of the Related Art Recently, an air conditioner attached to a building or the like for air conditioning a room is required to have low maintenance.

Conventionally, a cleaning device for an air conditioner of this type generally has a structure as shown in FIG. The configuration will be described below with reference to FIG.

As shown in the figure, the body 101 of the air conditioner
A heat exchanger 102 and a blower 103 are provided therein, a dew tray 104 is provided below the heat exchanger 102, a water pipe 106 is provided above the dew tray 104 via a manual valve 105, and a plurality of water spouts 107 are provided. The water spray pipe 108 is provided. Further, the indoor air outlet 10 is disposed so as to face the heat exchanger 102.
9 and an indoor air suction port 111 having an air filter 110 facing the blower 103. Then, the indoor air sucked by the blower 103 from the indoor air suction port 111 through the air filter 110 is heat-exchanged by the indoor heat exchanger 102 and blown out from the indoor air outlet 109. Further, when the manual valve 105 is opened, the tap water flowing from the water pipe 106 into the water sprinkling pipe 108 is supplied to the heat exchanger 1 through the sprinkling port 107 provided in the water sprinkling pipe 108.
02, flows into the dew tray 104, and is drained to the outside through a drain pipe (not shown).

In the above structure, the indoor air sucked by the blower 103 is removed by the air filter 110, but minute dust passes through the air filter 110 and adheres to the surface of the heat exchanger 102. This heat exchanger 1
The dust adhering to the surface of No. 02 is washed with tap water that flows through the dew tray 104 through the heat exchanger 102 through the sprinkling port 107 provided in the sprinkling pipe 108.

Further, as a cleaning method using a cleaning solution, there is one described in Japanese Utility Model Laid-Open No. 61-10431.

[0007]

In such a conventional air conditioner cleaning device, the amount of dust adhering to the surface of the heat exchanger 102 is unknown, and when cleaning is required and how long cleaning time is required. However, there is a problem in that it cannot be predicted at all, and the manual valve 105 needs to be opened and closed artificially, resulting in lack of maintenance.

The present invention solves the above-mentioned problems by automatically determining the amount of dust adhering to the surface of a heat exchanger and automatically using tap water at the required time and for the required time. A first object of the present invention is to provide a cleaning device for an air conditioner that cleans dust adhering to the surface of a heat exchanger.

A second object is to use an apparatus for automatically cleaning dust adhering to the surface of the heat exchanger by using dew condensation water generated in the heat exchanger instead of tap water, at a necessary time and for a necessary time. To provide.

[0010]

SUMMARY OF THE INVENTION In order to achieve the first object, the cleaning device for an air conditioner of the present invention has a first means, a blower and a heat exchanger provided in the main body, and a heat exchanger for the heat exchanger. A water sprinkling pipe having a plurality of water sprinkling ports provided in communication with a water pipe via a solenoid valve above the exchanger, a differential pressure gauge provided on the front side and the rear side of the heat exchanger, and the differential pressure gauge and the electromagnetic force. A control box for controlling the valve and a control box for controlling the valve and spraying water to the heat exchanger by the pressure difference of the differential pressure gauge for cleaning.

In order to achieve the second object, the second
Means controls a water sprinkling pipe having a plurality of water sprinkling ports provided above the heat exchanger so as to communicate with the drain pump, a differential pressure gauge provided on the front side and the back side of the heat exchanger, and the drain pump. A control box is provided, and water is sprayed on the heat exchanger by the pressure difference of the differential pressure gauge for cleaning.

[0012]

According to the present invention, with the construction of the above-mentioned first means, the differential pressure gauge detects the pressure difference between the front side and the rear side of the heat exchanger, transmits the signal to the control box, and supplies the electromagnetic signal to the water pipe. The valve can be opened and closed automatically, and tap water can be sprinkled from the spout to wash.

With the configuration of the second means, the pressure difference between the front side and the back side of the heat exchanger is detected by the differential pressure gauge, the signal is transmitted to the control box, and the drain pump provided above the dew tray. The dew condensation water can be guided to the water sprinkling pipe and sprinkled with water from the water spout for cleaning.

[0014]

【Example】

(Embodiment 1) Hereinafter, a first embodiment of the present invention will be described with reference to FIG. The same parts as those of the conventional example are designated by the same reference numerals and detailed description thereof will be omitted.

As shown in the drawing, differential pressure gauges 1a and 1b are provided on the front and rear sides of the heat exchanger 102, and a control box 2 to which a differential pressure signal sensed by the differential pressure gauges 1a and 1b is transmitted. A water pipe 106 that is provided and communicates with a water pipe 108 having a plurality of water spouts 107 when the control box 2 receives a signal equal to or higher than a preset differential pressure.
The solenoid valve 3 provided in the above is opened, and conversely, when the control box 2 receives a signal below the preset differential pressure, the control valve provided in the water pipe 106 is closed.

With the above structure, when the amount of dust attached to the surface of the heat exchanger 102 exceeds a certain amount, the differential pressure gauges 1a and 1b sense a signal equal to or higher than a preset differential pressure,
The signal is transmitted to the control box 2 and the plurality of spouts 1
The solenoid valve 3 provided in the water pipe 106 communicating with the water sprinkling pipe 108 having the opening 07 is opened, and tap water is automatically sprinkled from the water spout 107, and the heat exchanger 102 is connected to the heat exchanger 102. Dust on the surface is washed and the dew tray 10
4 is discharged to the outside through a drain pipe (not shown). On the contrary, when the differential pressure gauges 1a and 1b detect a signal equal to or lower than a preset differential pressure and the signal is transmitted to the control box 2, the water pipe 106 communicating with the sprinkler pipe 108 having a plurality of sprinkler ports 107 is connected. The provided solenoid valve 3 is opened, and water sprinkling is automatically stopped from the tap water sprinkling port 107.

As described above, according to the air conditioner cleaning apparatus of the first embodiment of the present invention, the amount of dust adhering to the surface of the heat exchanger 102 is automatically determined by the differential pressure of the differential pressure gauges 1a and 1b. Further, a preset differential pressure signal is transmitted to the control box 2, the electromagnetic valve 3 provided in the water pipe 106 is automatically opened / closed, and water sprinkling from the tap water spout 107 is automatically started. The heat exchanger 102 is stopped and the heat exchanger 102 is washed.

(Embodiment 2) Next, a second embodiment of the present invention will be described with reference to FIG. The same parts as those in the first embodiment are designated by the same reference numerals and detailed description thereof will be omitted.

As shown in the figure, a differential pressure gauge 1a, 1b is provided on the front and rear sides of the heat exchanger 102, and a control box 2A for transmitting a differential pressure signal sensed by the differential pressure gauge 1a, 1b. When the control box 2A receives a signal equal to or higher than a preset differential pressure, the drain pump 4 provided above the dew tray 104 operates, and conversely controls a signal equal to or lower than a preset differential pressure. A control circuit is provided to stop the drain pump 4 provided above the dew tray 104 when the box 2A receives it.

With the above structure, when the amount of dust attached to the surface of the heat exchanger 102 exceeds a certain amount, the differential pressure gauges 1a and 1b sense a signal equal to or higher than a preset differential pressure,
The signal is transmitted to the control box 2A, and the dew tray 104
The drain pipe 1 provided above the drain is operated and has a plurality of water spray ports 107 communicating with the drain pump 4.
The dew condensation water generated in the heat exchanger 102 flows in 08, this dew condensation water is automatically sprinkled from the sprinkling port 107, and the dust adhering to the surface of the heat exchanger 102 is cleaned by connecting the heat exchanger 102. , Flows into the dew tray 104 and is discharged to the outside through a drain pipe (not shown). On the contrary, when the differential pressure gauges 1a and 1b detect a signal equal to or lower than the preset differential pressure and the signal is transmitted to the control box 2A, the drain pump 4 provided above the dew tray 104 is stopped and the condensed water is condensed. Water spout 10
Watering from 7 automatically stops.

As described above, according to the air conditioner cleaning apparatus of the second embodiment of the present invention, the amount of dust adhering to the surface of the heat exchanger 102 is automatically determined by the differential pressure of the differential pressure gauges 1a and 1b. Further, a preset differential pressure signal is transmitted to the control box 2A, the drain pump 4 provided above the dew tray 104 is automatically activated / stopped, and the sprinkling of the dew condensation water from the spout 107 is automatically performed. Heat exchanger 1
02 is to be washed.

[0022]

As is apparent from the above embodiments, according to the present invention, the pressure is automatically adhered to the surface of the heat exchanger by the differential pressure of the differential pressure gauge provided on the front side and the rear side of the heat exchanger. The amount of dust is determined, the preset differential pressure signal is transmitted to the control box, the solenoid valve installed in the water pipe is automatically opened and closed, and water sprinkling from the tap water spout is automatically started.
Since it can be stopped, it is possible to automatically clean the dust adhering to the surface of the heat exchanger at the required time and for the required time, and no manual work is required. A machine cleaning device can be provided.

Further, the amount of dust adhering to the surface of the heat exchanger is automatically discriminated by the differential pressure of the differential pressure gauge, and the signal of the preset differential pressure is transmitted to the control box, and the dew tray is automatically fed. The drain pump installed above the unit will start and stop automatically, and the sprinkling of dew condensation water from the spout will automatically start and stop, so tap water will not be required, and an energy-saving and maintenance-friendly cleaning device for air conditioners will be provided. Can be provided.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing the configuration of a cleaning device for an air conditioner according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view showing the configuration of a cleaning device for an air conditioner according to the second embodiment.

FIG. 3 is a cross-sectional view showing the configuration of a conventional air conditioner cleaning device.

[Explanation of symbols]

 1a Differential pressure gauge 1b Differential pressure gauge 2 Control box 2A Control box 3 Solenoid valve 4 Drain pump 101 Main body 102 Heat exchanger 103 Blower 106 Water pipe 107 Water spout 108 Sprinkling pipe

Claims (2)

[Claims] 1. A blower and a heat exchanger provided in the main body, a sprinkler pipe having a plurality of sprinklers provided above the heat exchanger so as to communicate with a water pipe through an electromagnetic valve, and the heat exchanger. A differential pressure gauge provided on the front side and the rear side of the, and a control box for controlling the differential pressure gauge and the solenoid valve, the air configured to spray water on the heat exchanger due to the pressure difference of the differential pressure gauge to wash the air. Harmonizer cleaning device. 2. A water sprinkling pipe having a plurality of water sprinkling ports provided above the heat exchanger so as to communicate with the drain pump, a differential pressure gauge provided on the front and rear sides of the heat exchanger, and the drain pump. The air conditioner cleaning device according to claim 1, further comprising a control box for controlling.