JPH06257784A - Drain disposing device for air conditioner - Google Patents

Abstract

PURPOSE:To provide a drain disposer for an air conditioner in which drain water generated from an evaporator is efficiently disposed without adhering water droplets to a periphery. CONSTITUTION:An evaporator 13 is mounted together with a condenser 12 in a case 11. Drain water generated from the evaporator 13 is collected by a drain pan 19, and stored in an atomizing chamber of a drain disposing part 21 through a hose 20. An air introducing mechanism 23 is so provided as to partly cover a rotary surface of an air flow fan 14, and introduced air flow is introduced into the chamber through a suction tube 22. An ultrasonic vibrator is provided in the chamber to atomize the drain water, the air flow from the tube 22 is introduced into a discharge tube 24 together with the atomized drain water, and externally discharged. The tube 24 is so set as to pass through an exhaust passage 17 of the air flow introduced by the fan 14 via the condenser 12, and opened at its exhaust port.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drain treatment device for an air conditioner, which discharges drain water generated in an evaporator portion, and in particular treats drain water atomized by an ultrasonic vibrator.

[0002]

2. Description of the Related Art In a refrigerant circulation circuit of an air conditioner, an evaporator constituting a heat exchanger is provided which evaporates and expands a compressed refrigerant and cools air in accordance with an endothermic action caused by evaporation of the refrigerant. ing. Therefore, during the cooling operation, the air flow generated by the evaporator fan is in contact with the evaporator portion so that the atmosphere is in contact with the atmosphere, and this air is rapidly cooled by the evaporator. The water contained therein is separated and is added dropwise as drain water.

Particularly in a compact air conditioner such as a spot cooler, the treatment of such drain water is a big problem. For example, in Japanese Utility Model Laid-Open No. 56-153719, the drain sucked up by a water pump or the like is used. It is considered that water is put on a condenser in which a high-temperature refrigerant is circulated, and the heat of condensation of the refrigerant is used to perform an evaporation process.

However, if the drain water is applied to the condenser to evaporate it as described above, dust contained in the drain water adheres to the heat exchange fins of the condenser, and the fins are conspicuous. Cause a blockage. Therefore, it is necessary to wash the heat exchange fins frequently, and the fins are corroded because the temperature of the condenser is high. Also, it is difficult to treat all the drain water generated in the evaporator by evaporation in the condenser part,
Furthermore, the drain process can be performed only during the cooling operation.

Further, as disclosed in Japanese Utility Model Application Laid-Open No. 57-21942, it is considered that the drain water is atomized and treated by an ultrasonic transducer. That is, a water tank for collecting drain water is installed on the upstream side of the ventilation system for the condenser, and an ultrasonic vibrator is set in the water tank. The drain water atomized by this ultrasonic vibrator is used. The air flow generated by the fan for blowing the condenser blows on the condenser to evaporate it.

However, since the water in the water tank is atomized and scattered in the air by the ultrasonic oscillator, water drops adhere to the inside of the spot cooler or around the spot cooler. Have problems such as. Also,
Naturally, maintenance of the condenser fins becomes a problem.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and in particular, a state in which it can be sufficiently simplified when atomizing and discharging drain water using an ultrasonic transducer. Therefore, it is an object of the present invention to provide a drain treatment device for an air conditioner that does not particularly require maintenance of the fins of the condenser, and does not have problems such as water droplets adhering to the inside of the air conditioner and water droplets adhering to the surroundings. It is a thing.

[0008]

A drain treatment device for an air conditioner according to the present invention is located below an evaporator constituting the air conditioner, and the drain water generated in the evaporator portion is dropped to the drain device. I set up an atomization chamber so that water can be stored,
A part of the air flow generated by the fan is introduced into the atomization chamber through an air suction mechanism that is opened so as to partially overlap the air flow passage generated by the blower fan set in the air conditioner. The discharge mechanism is provided by opening one end in the atomization chamber, and an ultrasonic vibrator is installed in the drain water portion accumulated in the atomization chamber, and the accumulated drain water is the ultrasonic wave. It is atomized by the vibrator and is discharged to the outside through the discharge mechanism together with the air flow introduced through the air suction mechanism. In this case, the discharge mechanism is set so that one end is opened in the atomization chamber and penetrates the inside of the exhaust passage that releases the air introduced by the blower fan to the outside through the condenser, and the other end is set. The outside air is opened corresponding to the exhaust port of this exhaust path.

[0009]

In the drain treatment device of the air conditioner configured as above, the drain water generated in the evaporator portion is automatically dropped into the atomization chamber and stored therein. The drain water in the atomizing chamber is atomized by the ultrasonic transducer. On the other hand, for example, a part of the air flow generated by the blower fan set corresponding to the condenser is introduced into the atomization chamber through the air suction mechanism and is discharged outside through the discharge mechanism. However, at this time, since the drain water is atomized and filled by the ultrasonic transducer in the atomization chamber, it is discharged to the outside through the discharge mechanism together with this air flow. . Therefore, the atomized drain water is discharged without coming into contact with the condenser portion and is not circulated inside the air conditioner. Since it is set to penetrate the inside of the exhaust gas and the other end is opened to the outside air corresponding to the exhaust port of this exhaust passage, the atomized drain water is discharged without diffusing with the exhaust flow. As a result, water drops do not adhere to the fins of the condenser, maintenance is not particularly required, and problems such as water drops adhering to the inside of the air conditioner and water drops adhering to them can occur. Absent.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a sectional structure of a spot cooler 10 having a built-in drain treatment mechanism. A condenser 12 in which a refrigerant compressed by a compressor (not shown) is circulated inside a case 11 is shown.
And the evaporator 13 is set, the condenser blower fan 14 is set corresponding to the condenser 12, and the evaporator is set.
The evaporator fan 15 is set corresponding to 13. These fans 14 and 15 are set at coaxial positions, and are rotationally driven by a fan motor 16.

The condenser fan 14 introduces air from the outside through the condenser 12 and forms the air heat-exchanged in the condenser 12 through the exhaust passage 17 in the case 11, for example, in the upper part of the case 11. The exhaust gas is discharged to the outside through the opening. Also,
The evaporator fan 15 is for exchanging heat in the evaporator 13, and guides the cooled cooling air to the cool air blowing duct 18, and the cool air guided to the duct 18 is guided to the cold air blowing port opened in the room. This room will be cooled.

A drain pan 19 is set in the lower portion of the evaporator 13. Drain water extracted from the air cooled in the evaporator 13 is dripped and collected, and the drain pan 19 is provided.
The drain water collected in is drained to the drain processing section 21 via the drain hose 20. The drain processing unit 21 is provided with a suction pipe 22, and the suction pipe 22 has an air-blowing introduction mechanism whose opening is set corresponding to the condenser fan 14 unit.
It is connected to 23. A discharge pipe 24 is communicated with the drain processing unit 21, and the discharge pipe 24 penetrates the inside of the exhaust passage 17 and is opened at an upper portion of the case 11 corresponding to an opening portion of the exhaust passage 17. It Reference numeral 25 is a switch for controlling the spot cooler 10.

FIG. 2 shows the construction of the drain processing section 21, in which an atomizing chamber 31 is formed, and the drain water 32 dropped from the drain hose 20 is stored in the atomizing chamber 31. ing. Then, the suction pipe 22 is opened above the atomization chamber 31, and the lower end of the discharge pipe 24 is opened close to the surface of the drain water 32.

Atomizing device corresponding to the atomizing chamber 31.
33 is set, and this atomization device 33 is configured by an ultrasonic transducer 331 that is set to contact the drain water 32, and a control device 332 that supplies electric power to this ultrasonic transducer 331. An AC power supply, for example, is connected to the control device 332 via the transformer 34. In addition, drain water that has been accumulated
A float switch 35 is floated on the water surface of 32, and the water level of the drain water 32 is measured by this float switch 35, and the state in which the water level of the drain water 32 exists is detected by the control device 332, and ultrasonic vibration is performed. The drive power supplied to the child 331 is controlled.

That is, the drain water 32 is atomized and the atomization chamber 31 is filled with the drive power supplied to the ultrasonic transducer 331. At this time, when the spot cooler 10 is operated in the cooling state, the fan motor 16 rotates the condenser blower fan 14, and a part of the air flow generated by the fan 14 is discharged from the blower introduction mechanism 23. It is introduced and guided to the suction pipe 22, and the drain processing unit 21
It is introduced into the atomization chamber 31 of. Since the atomization chamber 31 is opened to the outside only through the discharge pipe 24, the airflow introduced through the suction pipe 22 is guided to the discharge pipe 24 through the atomization chamber 31. As a result, the atomized drain water in the atomization chamber 31 is discharged to the outside together with this exhaust air flow.

FIG. 3 shows the structure of the blow-in introducing mechanism 23, in which an opening 231 is formed so as to face a part of the rotating surface of the condensing fan 14 and communicates with this opening 231. The suction pipe 22 is set as described above. Therefore, when the blower fan 14 is rotated, the airflow generated by the rotation of the fan 14 is introduced through the condenser 12 part and discharged to the outside through the exhaust passage 17. However, a part of this air flow is received by the opening 231 and introduced into the atomization chamber 31 of the drain processing unit 21 through the suction pipe 22.

FIG. 4 shows the construction of the upper opening 241 of the discharge pipe 24, and the opening 241 is closed by a louver 242. Then, foreign matter is prevented from falling into the discharge pipe 24.

That is, in the spot cooler 10 thus constructed, when the cooling operation state is set by the switch 25, the atomizing device 33 of the drain processing section 21 is activated,
A drive command is given to the ultrasonic transducer 231 by a command from the control device 332, and the drain water 32 in the atomization chamber 31 is atomized. In addition, the fan motor responds to the cooling operation command.
16 is operated to rotate the condenser blower fan 14 together with the evaporator blower fan 15, and the airflow generated by the blower fan 14 is introduced into the atomization chamber 31 of the drain processing unit 21.
Therefore, the atomized drain water in the atomization chamber 31 is discharged from the discharge pipe.
Exhausted via 24.

In this case, since the discharge pipe 24 is set so as to penetrate the inside of the exhaust passage 17, the discharge passage of the atomized drain water from the discharge pipe 24 is discharged by the exhaust from the exhaust passage 17. Therefore, the atomized drain water is guided to the exhaust gas from the exhaust passage 17 and discharged to the outside, and is not scattered around.

That is, the opening 231 of the blower introduction mechanism 23 is in a state of being greatly expanded, and the blower fan for the condenser is
Since it covers a part of the rotating surface of 14, it is possible to introduce a large amount of exhaust air generated by the blower fan 14 into the atomization chamber 31 of the drain processing unit 21. Further, since the drain water atomized by the discharge pipe 24 is carried to the outlet of the exhaust passage 17 and blown outside together with the exhaust flow from the exhaust passage 17, the spot cooler as well as the periphery of the exhaust passage 17 is discharged. Adhesion of water droplets to the periphery of 10 is reliably prevented.

Further, since a louver 242 for preventing foreign matter from falling is provided at the tip end opening of the discharge pipe 24, water droplets adhering to this louver 242 are drained along the inclination of the louver 242. It is reliably prevented that the water drops that have fallen into the inside of 21 and that the attached water droplets cause clogging of the outlet of the discharge pipe 24.

[0022]

As described above, according to the drainage treatment apparatus for an air conditioner of the present invention, when the drain water is atomized and discharged by using the ultrasonic vibrator, for example, the fin of the condenser is discharged by the discharged drain water. Water droplets can be prevented from adhering to the air conditioner, and problems such as water droplets adhering to the inside of the air conditioner and the water droplets adhering to them can be reliably solved. It is possible to configure an air conditioner having high property.

[Brief description of drawings]

FIG. 1 is a diagram showing a sectional structure of a spot cooler according to an embodiment of the present invention.

FIG. 2 is a sectional view illustrating a configuration of a drain processing unit of the cooler.

FIG. 3 is a view showing a blower introduction mechanism portion, FIG. 3A is a view showing a sectional structure including a suction pipe, and FIG. 3B is a front view.

4A and 4B are views for explaining a discharge pipe, FIG. 4A is a plan view of an opening, and FIG. 4B is a side view of the opening.

[Explanation of symbols]

10 ... Spot cooler, 11 ... Case, 12 ... Condenser, 13 ... Evaporator, 14,15 ... Blower fan, 16 ... Fan motor, 17 ... Exhaust passage, 18 ... Cold air blowing duct, 19 ... Drain pan, 20 ...
Drain hose, 21 ... Drain processing part, 22 ... Suction pipe,
23 ... Blower introduction mechanism, 24 ... Discharge pipe, 31 ... Atomization chamber, 32 Drain water, 33 ... Atomization device, 331 ... Ultrasonic transducer.

Claims (1)

[Claims] 1. An atomization chamber, which is set below an evaporator constituting an air conditioner and is configured to drop the drain water generated in the evaporator portion and store the drain water, A blower fan set in the air conditioner, an exhaust passage for discharging the air introduced by the blower fan to the outside through the condenser, and an air flow passage generated by the blower fan, which partially overlaps An air suction mechanism for introducing a part of the air flow generated by the fan into the atomization chamber, and one end of which is opened in the atomization chamber to penetrate the exhaust passage. And a discharge mechanism in which the other end is opened to the outside air corresponding to the exhaust port of the exhaust passage, and an ultrasonic wave set so as to contact the drain water portion accumulated in the atomization chamber. A vibrator, and the accumulated drain The water is atomized by the ultrasonic transducer, introduced through the air suction mechanism, and is discharged together with the air flow discharged to the outside through the discharge mechanism. Machine drain processing equipment.