JPH0849874A - Local cooler - Google Patents

Abstract

PURPOSE:To provide a local cooler in which the heat exchanging efficiency has been improved by preventing clogging with dusts contained in the condensed water of an outdoor heat exchanger. CONSTITUTION:This local cooler comprises an indoor heat exchanger 103 provided at the upper side of a body 101 and an outdoor heat exchanger 109 provided at the lower side, and an indoor side drain pan l provided at the lower part of the exchanger 103 and formed with a drain port 2 for sprinkling the exchanger 109, and a weir 3 so provided as to feed to the port 2 after the condensed water of a specific quantity is stored in the pan 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a local air conditioner used in factories and the like.

[0002]

2. Description of the Related Art In recent years, there has been an increasing demand for local air conditioners in factories to improve the work environment and secure human resources. The floor-standing type grows significantly.

Conventionally, this type of local cooling machine generally has a structure as shown in FIG. The configuration will be described below with reference to FIG.

As shown in the figure, inside the main body 101, the indoor heat exchanger 10 is opposed to the indoor suction port 102 from the upper side.
3 and the indoor blower 104 are provided, and this indoor blower 1
An indoor side outlet 105 is provided above 04. An indoor drain pan 106 is provided below the indoor heat exchanger 103, and a drain port 107 is provided so that condensed water generated in the indoor heat exchanger 103 is sprayed. The outdoor heat exchanger 109 and the outdoor heat exchanger 10 are provided below the drain port 107 so as to face the outdoor suction port 108.
A drain tank 111 is provided below 9 via an outdoor drain pan 110, and the indoor blower 104 is provided.
The outdoor blower 112 on the opposite side of the
An outdoor outlet 113 is provided above 12.

In the above structure, the air sucked from the indoor suction port 102 by the indoor blower 104 is heat-exchanged by the indoor heat exchanger 103, becomes cold air, and is blown out from the indoor air outlet 105. On the other hand, the outdoor blower 112
Thus, the air sucked from the outdoor suction port 108 is heat-exchanged by the outdoor heat exchanger 109, becomes warm air, and is blown out from the outdoor air outlet 113. Further, the indoor heat exchanger 1
The condensed water generated by 03 drops into the indoor drain pan 106, is guided to the outdoor heat exchanger 109 through the drainage port 107, evaporates while gradually descending inside the outdoor heat exchanger 109, and the outdoor heat It was stored in the drain tank 111 via the outdoor drain pan 110 provided below the exchanger 109.

Further, as a structure in which condensed water is guided to the outdoor heat exchanger, there is one disclosed in Japanese Utility Model Laid-Open No. 63-120017.

[0007]

In such a conventional local air conditioner, the condensed water generated in the indoor heat exchanger 103 is
Condensed water containing indoor dust and the like flows into the indoor drain pan 106 and is discharged from the drain port 107 to the outdoor heat exchanger 10.
9, the outdoor heat exchanger 109 is clogged due to the adhesion of dust or the like to lower the heat exchange efficiency, and due to the inclination of the main body 101 or the like, the condensed water sprinkled from the drain port 107 is reduced. There is a problem that the condensed water is limited to only a few places, the condensed water is not evenly sprayed on the outdoor heat exchanger 109, and the evaporation efficiency is reduced.

The present invention solves the above problems, and minimizes dust and the like contained in condensed water to prevent clogging of an outdoor heat exchanger and improve heat exchange efficiency. The first purpose is to provide.

A second object is to evenly disperse the condensed water in the outdoor heat exchanger to improve the evaporation efficiency.

[0010]

The local air conditioner of the present invention comprises:
To achieve the above first object, the first means forms an air flow through the indoor heat exchanger provided on the upper side and the outdoor heat exchanger provided on the lower side inside the main body, and the indoor heat exchanger. An outdoor blower that forms an air flow through an indoor blower and an outdoor heat exchanger, and an indoor drain pan that is provided below the indoor heat exchanger and that has a drain port that sprinkles water to the outdoor heat exchanger. A cough is provided so that a certain amount of condensed water is stored in the indoor drain pan and then flows out to the drain port.

In order to achieve the second object, the second
This means is configured such that a plurality of partition plates are provided in the indoor drain pan so that the condensed water is divided and divided, and the drain ports provided in the longitudinal direction of the indoor drain pan are divided.

[0012]

According to the present invention, by the construction of the above-mentioned first means, the condensed water generated in the indoor heat exchanger is once dammed by the dam provided in the indoor side drain pan to precipitate dust and the like, and only the purified condensed water is collected. Water can be sprinkled from the drain to the outdoor heat exchanger.

Also, with the configuration of the second means, the condensed water can be uniformly sprayed on the upper part of the outdoor heat exchanger from the drain port divided by the plurality of partition plates provided in the indoor drain pan.

[0014]

EXAMPLES Example 1 Hereinafter, a first example of the present invention will be described with reference to FIGS. 1 and 2. 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 figure, a drain port 2 for sprinkling water to the outdoor heat exchanger 109 is provided in the longitudinal direction of the indoor drain pan 1 provided below the indoor heat exchanger 103, and a fixed amount of condensed water is stored. A weir 3 is provided in the longitudinal direction of the indoor side drain pan 1 so that the drain 3 will later flow out.

With the above structure, the condensed water generated in the indoor heat exchanger 103 flows into the indoor drain pan 1 together with the dust attached to the surface of the indoor heat exchanger 103. And
For a while, it is temporarily stopped by the weir 3 provided in the indoor drain pan 1 and does not flow into the drainage port 2. During that time, dust having a higher specific gravity than the condensed water settles, and the condensed water relatively overflows from the weir 3 and flows into the drainage port 2 and is sprayed to the outdoor heat exchanger 109.

As described above, according to the local air conditioner of the first embodiment of the present invention, the washed condensed water is supplied to the indoor drain pan 1
Water is sprinkled on the outdoor heat exchanger 109 from the drain port 2 provided in
It is possible to minimize the adhesion of dust and the like to the outdoor heat exchanger 109.

(Second Embodiment) A second embodiment of the present invention will be described below with reference to FIGS. 3 and 4. In addition,
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 plurality of partition plates 6 are provided so that the condensed water dripping from the indoor heat exchanger 103 is divided into the indoor side drain pan 4 and is divided into the drain ports 5 provided in the longitudinal direction.
Is provided and the drain port 5 is divided by the partition plate 6.

With the above construction, the condensed water generated in the indoor heat exchanger 103 flows into the indoor drain pan 4. Then, the drain ports 5 provided in the indoor drain pan 4 are divided by a plurality of partition plates 6, and the condensed water is drained from each of the divided drain ports 5, and is evenly distributed to the upper part of the outdoor heat exchanger 109. Will be watered.

As described above, according to the local air conditioner of the second embodiment of the present invention, the condensed water is discharged from the drain port 5 divided into the plurality of partition plates 6 provided in the indoor drain pan 4, and the outdoor heat exchange is performed. Water can be uniformly sprayed on the entire vessel 109.

[0022]

As is apparent from the above embodiments, according to the present invention, the condensed water generated in the indoor heat exchanger is temporarily dammed by the weir provided in the indoor drain pan, and after the dust etc. is settled. Since the outdoor heat exchanger is sprinkled with water from the drain port, it is possible to minimize clogging due to adhesion of dust on the outdoor heat exchanger, and to provide a local air conditioner that can prevent a decrease in heat exchange efficiency. .

The condensed water generated in the indoor heat exchanger is
It is possible to provide a local air conditioner capable of uniformly sprinkling water throughout the outdoor heat exchanger by improving the evaporation efficiency by draining each of the drain ports divided by a plurality of partition plates provided in the indoor drain pan.

[Brief description of drawings]

FIG. 1 is a sectional view showing the configuration of a local air conditioner according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing an indoor drain pan of the local air conditioner of the first embodiment.

FIG. 3 is a sectional view showing the configuration of a local air conditioner of the second embodiment.

FIG. 4 is a perspective view showing an indoor drain pan of the local air conditioner of the second embodiment.

FIG. 5 is a cross-sectional view showing the configuration of a conventional local air conditioner.

[Explanation of symbols]

 1 Indoor side drain pan 2 Drain port 3 Cough 4 Indoor side drain pan 5 Drain port 6 Partition plate 101 Main body 103 Indoor heat exchanger 109 Outdoor heat exchanger

Claims (2)

[Claims] 1. An indoor heat exchanger provided on an upper side and an outdoor heat exchanger provided on a lower side inside a main body, and an air blower and an outdoor heat exchanger forming an air flow through the indoor heat exchanger. An outdoor blower that forms a flow, and an indoor drain pan that is provided below the indoor heat exchanger and that has a drain port that sprays water to the outdoor heat exchanger, and a fixed amount of condensed water in the indoor drain pan. A local air conditioner provided with a cough so as to flow out to the drain after being stored. 2. The local cooling machine according to claim 1, wherein a plurality of partition plates are provided in the indoor drain pan so that the condensed water is divided and divided, and a drain port provided in the longitudinal direction of the indoor drain pan is divided.