JPH09210406A - Drain water dripping device for regional air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drain water dripping device for a local air conditioner in which drain water generated at an indoor device side heat exchanger can be positively fed out to an outdoor device side heat exchanger to improve an evaporating efficiency. SOLUTION: An indoor device side heat exchanger 2 and an indoor device side drain pan 3 are arranged at an upper side of one side surface of an inner segment of a main body 1. An outdoor device side heat exchanger 4 is arranged at a lower side and the indoor device side drain pan 3 is provided with a drain water dripping port 8 for feeding out drain water at an upstream side of the outdoor device side heat exchanger 4 so as to cause the end section to be contacted with a fin end surface of the device, thereby an evaporating efficiency of drain water can be improved and a water draining operation of a drain tank can be reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drain water dropping device for a local air conditioner used in a factory or the like.

[0002]

2. Description of the Related Art Conventionally, a method for treating drain water in a local air conditioner is disclosed in Japanese Utility Model Publication No. 1-16984. The drain water dropping device of the local air conditioner is shown in FIG. 7, and as shown in FIG. 7, the indoor heat exchanger 102, the indoor drain pan 103, and the fins (not shown) are horizontally arranged inside the main body 101 from above. The outdoor heat exchanger 104, the outdoor drain pan 105, and the middle frame 1 installed so as to face each other.
A drain tank 107 is provided via 06, and the drain water 108 is dispersed in the upper portion of the outdoor heat exchanger 104 in the indoor drain pan 103, and several shunt drop openings 108 are provided so as to spray water.
And the outdoor drain pan 105 serves as the outdoor heat exchanger 10.
A drain port 109 for draining the drain water dropped from No. 4 to the drain tank 107 below was provided, and the drain tank 107 was provided with a water injection port 110 at a position corresponding to the drain port 109 of the outdoor drain pan 105.

The motor 11 fixed to the center of the partition plate 111 at a position facing the indoor heat exchanger 102.
2 is a motor unit 1 in which an indoor blower fan 113 is provided on one side and an outdoor blower fan 114 is provided on the other side so as to have an air intake port on the indoor heat exchanger 102 side, that is, in the same direction.
15, the outdoor blower fan 114 has an air suction port on the side of the motor 112, and a chamber section 117 having a ventilation port 116 at the bottom inside the motor unit 115.

An indoor suction port 118 and an outdoor suction port 119 are provided on the same side surface of the main body 101 facing the indoor heat exchanger 102 and the outdoor heat exchanger 104,
The air sucked from the indoor suction port 118 passes through the indoor heat exchanger 102 and the indoor air passage 120 formed so as to pass through the indoor blower fan 113. The outdoor air flow path 1 formed so that the air sucked from the outdoor suction port 119 passes through the outdoor heat exchanger 104 and the outdoor blower fan 114.
The outdoor side air outlet 123 provided in communication with the main body 10
It was provided on the top surface 127 of No. 1 and the blowout duct 124 was connected to the indoor side blowout port 121.

Further, the compressor 125 is provided on the middle frame 106 which becomes the outdoor air flow path 122, and the caster 126 is provided at the bottom of the main body 101.

In the above structure, when the local air conditioner is operated, the indoor heat exchanger 102 produces drain water, the drain water is received by the indoor drain pan 103, and then the drip formed on the indoor drain pan 103. Water is sprinkled on the upper part of the outdoor heat exchanger 104 through the port 108, and the outdoor heat exchanger 1
The drain water that descends along the fins of 04 is evaporated by the condensation heat of the outdoor heat exchanger 104, and the drain water that cannot be completely evaporated is received by the outdoor drain pan 105, and then the drain port 107 of the drain tank 107. It was stored in the drain tank 107 through the water injection port 110.

[0007]

In such a conventional drain water dropping device for a local air conditioner, the indoor heat exchanger 102 is used.
Since the drain water generated in 1 is naturally dropped from the dropping port 108 to the upper surface of the outdoor heat exchanger 104, it is difficult for the drain water to flow into the outdoor heat exchanger 104, and There was a problem that the evaporation efficiency by heat was not improved.

The present invention solves the above-mentioned problems, and it is possible to reliably guide the drain water generated in the indoor heat exchanger to the outdoor heat exchanger and improve the evaporation efficiency by the heat of the outdoor heat exchanger. It is a first object to provide a drain water dropping device for a local air conditioner.

A second object is to remove the dust contained in the drain water and then guide the drain water to the outdoor heat exchanger to continuously maintain the improvement of the evaporation efficiency.

A third object is to guide the drain water to the outdoor heat exchanger in a stable state without causing an imbalance in the amount of drain water dripped even when the main body or the indoor drain pan is installed at an angle. It is to improve the evaporation efficiency.

A fourth object is to forcibly introduce drain water into the outdoor heat exchanger and utilize the entire surface of the fins of the outdoor heat exchanger to improve the evaporation efficiency by heat of the outdoor heat exchanger. It is to further improve.

[0012]

In the drain water dripping device for a local air conditioner of the present invention, an indoor heat exchanger and an indoor drain pan provided on the upper side inside the main body, and drain water from the indoor drain pan. The outdoor heat exchanger and the outdoor drain pan in which the fins provided on the lower side to be dropped are formed substantially horizontally, the drain tank provided below the outdoor drain pan, and the inside of the main body via the indoor heat exchanger. And an outdoor air flow passage formed in the main body via the outdoor heat exchanger, and a drain water dropping port of the indoor drain pan is used for the outdoor heat exchange. It is arranged on the upper windward side of the vessel so that the tip of the drain water dropping port is brought into contact with the surface of the outdoor heat exchanger.

According to the present invention, the drainage water generated in the indoor heat exchanger is reliably guided to the outdoor heat exchanger, and the evaporation efficiency by the heat of the outdoor heat exchanger can be improved. A drain water dropping device can be provided.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION The invention according to claim 1 of the present invention is an indoor heat exchanger and an indoor drain pan provided on an upper side inside a main body, and a lower portion to which drain water is dropped from the indoor drain pan. An outdoor heat exchanger in which the fins provided on the side are formed substantially horizontally and an outdoor drain pan,
A drain tank provided below the outdoor drain pan, an indoor air flow passage formed in the main body via the indoor heat exchanger, and an internal air flow passage formed in the main body via the outdoor heat exchanger. An outdoor air flow path is provided, and a drain water dropping port of the indoor side drain pan is arranged at an upper windward side of the outdoor side heat exchanger, and a drain water dropping port tip portion is provided on the surface of the outdoor side heat exchanger. The drain water generated in the indoor heat exchanger drips into the indoor drain pan below, and the drain water flows from the drain water dropping port of the indoor drain pan to the windward side of the outdoor heat exchanger. The drain water is guided to the upper portion and is sprayed on the fins in the horizontal state, and the drain water has a function of being vaporized by the heat of the outdoor heat exchanger while sequentially descending along the fins by its own weight.

According to a second aspect of the present invention, the indoor drain pan is provided with a weir for temporarily collecting the drain water generated in the indoor heat exchanger and then flowing it to the drain water dropping port. It is dammed up by the weir provided inside the indoor drain pan, and once stored in the indoor drain pan, it has the effect that dust and the like contained in the drain water is removed and then introduced to the drip port of the indoor drain pan.

According to the third aspect of the present invention, a downward slope is formed on the bottom surface of the indoor side drain pan toward both sides in the longitudinal direction from the central portion, and the drain water is once supplied from both sides of the indoor side drain pan to the drain water dropping port. The drain water is stored in only the both sides of the indoor drain pan and is then guided to the drip port of the indoor drain pan.

According to the fourth aspect of the present invention, since the tip of the drain water dropping port is formed to be inserted between the fins of the outdoor heat exchanger, the drain water is exchanged with the outdoor heat by the guide of the indoor drain pan. It has the action of being guided to the windward side of the upper part of the vessel and being forcedly introduced along the guide between the fins of the outdoor heat exchanger.

Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
This will be described with reference to FIG. (Embodiment 1) As shown in FIG. 1 and FIG.
The drain tank 7 is installed through the inside heat exchanger 2, the inside drain pan 3 and the fins 4a from above in the inside so that the fins 4a are arranged in the horizontal direction through the outside heat exchanger 4, the outside drain pan 5 and the middle frame 6. Provided in the indoor drain pan 3 is a guide 3a for guiding drain water to the upper windward side of the outdoor heat exchanger 4, and for introducing drain water between the fins 4a of the outdoor heat exchanger and the fins 4a. The drain water dropping port 8 is provided so that the tip portion is in contact with the outdoor heat exchanger 4,
Further, the outdoor drain pan 5 is provided with a discharge port 9 for discharging the drain water dropped from the outdoor heat exchanger 4 to the drain tank 7 below, and the drain tank 7 is provided with the outdoor drain pan 5
The water injection port 10 is provided at a position corresponding to the outlet 9 of the.

Further, at a position facing the indoor heat exchanger 2, one of the motors 12 fixed to the central portion of the partition plate 11 has an indoor blower fan 13 on one side and an outdoor blower fan 1 on the other side.
4 to the indoor heat exchanger 2 side, that is, in the same direction as the air suction port 1
Provide a motor unit 16 arranged to have 5,
The outdoor blower fan 14 connects the air suction port 15 to the motor 12
It is installed on the side and inside the motor unit 16 there is a ventilation port 1 at the bottom.
A chamber portion 18 having 7 is provided.

An indoor suction port 19 and an outdoor suction port 20 are provided on the same side surface of the main body 1 facing the indoor heat exchanger 2 and the outdoor heat exchanger 4, and the indoor suction port 19 is provided.
The indoor suction port 22 and the outdoor suction port, which communicate with the indoor air flow passage 21 formed so that the air sucked in through the indoor heat exchanger 2 passes through the indoor blower fan 13. The air sucked from 20 passes through the outdoor heat exchanger 4, and communicates with the outdoor air flow path 23 formed so as to pass through the outdoor blower fan 14. 25, and an outlet duct 26 is connected to the indoor side outlet 22.

A compressor 27 is provided on the middle frame 6 which becomes the outdoor air flow path 23, and a caster 28 is provided at the bottom of the main body 1.

With the above construction, the drain water generated in the indoor heat exchanger 2 is dripped into the indoor drain pan 3 below, and the drain water is guided by the guide 3a of the indoor drain pan 3 to
It is guided to the windward upper side of the outdoor heat exchanger 4 provided further below, and the fins 4a are arranged inside the outdoor heat exchanger 4 so that the tips of the fins 4a are in contact with each other. The water is introduced through the drain water dropping port 8 provided, and then gradually evaporates while descending inside.

(Embodiment 2) As shown in FIG. 3, a weir 30 is provided in the vertical direction from the bottom surface 29 of the indoor drain pan 3A in the vicinity of the drain water dropping port 8 inside the indoor drain pan 3A to temporarily drain water. Inside 3 of the indoor drain pan 3A
It is configured such that only the supernatant portion of the drain water passes over the weir 30 and is guided to the drain water dropping port 8 after being stored in the drain water 1.

With the above structure, the drain water is temporarily stored in the indoor drain pan 3A, the dust contained in the drain water is removed, and the drain water purified to some extent is led to the outdoor heat exchanger (not shown). The Rukoto.

(Embodiment 3) As shown in FIG. 4, a weir having notches 32 formed on both sides in the vertical direction from the bottom surface 29 of the indoor drain pan 3B in the vicinity of the drain water dropping port 8 inside the indoor drain pan 3B. 30A is provided so that the drain water is temporarily stored in the inside 31 of the indoor side drain pan 3B, and only the supernatant portion of the drain water is guided to the drain water dropping port 8 beyond the weir 30A. Then, the bottom surface 29 of the indoor drain pan 3B is inclined from the vicinity of the center of the bottom surface 29 toward both sides in the longitudinal direction so as to have a downward slope.

With the above structure, the drain water generated by the indoor heat exchanger 2 is dripped on the bottom surface 29 of the indoor drain pan 3B, but the drain water is inclined to cause the indoor drain pan 3 to drain.
It flows down to both sides of B, drain water is accumulated only on both sides, dust contained in the drain water is removed, and drain water that has been purified to some extent is supplied from the notch 32 of the weir 30A to the outdoor heat exchanger (not shown). ) Will be derived.

(Embodiment 4) As shown in FIGS. 5 and 6, the tip 33 of the indoor side drain pan 3C is inserted between the horizontally arranged fins 4a of the outdoor heat exchanger 4 and the fins 4a. It is configured as described above.

With the above structure, the drain water generated by the indoor heat exchanger 2 is guided from the indoor drain pan 3C to the tip 33 of the drain water dropping port 8 and reaches the upper windward upper part of the outdoor heat exchanger 4. Further, the drain water is led out to the inside of the outdoor heat exchanger 4 from the tip portion 33 provided so as to be hard to enter the inside of the outdoor heat exchanger 4.

[0029]

As described above, according to the first aspect of the invention, the drain water dropping port of the indoor side drain pan is arranged at the upper windward side of the outdoor heat exchanger, and the tip of the drain water dropping port is placed outside the room. Since it is in contact with the surface of the heat exchanger, it is possible to provide a drain water dropping device for a local air conditioner which can improve the evaporation efficiency of drain water and reduce drainage work of the drain tank.

According to the second aspect of the present invention, since the drain water generated in the indoor heat exchanger is once stored in the indoor drain pan and then the weir is supplied to the drain water dropping port, it is included in the drain water. It is possible to continuously maintain the improvement of evaporation efficiency by removing dust and the like.

According to the third aspect of the present invention, a downward slope is formed on the bottom surface of the indoor side drain pan toward both sides in the longitudinal direction from the central portion so that the drain water flows from both sides of the indoor side drain pan to the drain water dropping port. Since a weir that temporarily stores drain water is provided, even if the indoor drain pan is installed tilted, it is possible to guide the drain water to the outdoor heat exchanger in a stable state without causing an imbalance in the amount of drain water dripped. it can.

Further, according to the invention of claim 4, since the tip of the drain water dropping port is formed so as to be inserted between the fins of the outdoor heat exchanger, the entire fins of the outdoor heat exchanger are formed. It can be used to evaporate, and the evaporation efficiency can be further improved.

[Brief description of drawings]

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

FIG. 2 is a perspective view showing a configuration of an indoor side drain pan of the drain water dropping device of the local air conditioner according to the first embodiment.

FIG. 3 is a perspective view showing a configuration of an indoor side drain pan of the drain water dropping device of the local air conditioner according to the second embodiment.

FIG. 4 is a perspective view showing a configuration of an indoor side drain pan of the drain water dropping device of the local air conditioner according to the third embodiment.

FIG. 5 is a cross-sectional view showing the configuration of a drain water dropping device for a local air conditioner according to the fourth embodiment.

FIG. 6 is a perspective view showing a configuration of an indoor side drain pan of the drain water dropping device of the local air conditioner according to the fourth embodiment.

FIG. 7 is a cross-sectional view showing the configuration of a conventional drain water dropping device for a local air conditioner.

[Explanation of symbols]

 1 Main Body 2 Indoor Heat Exchanger 3 Indoor Drain Pan 3A Indoor Drain Pan 3B Indoor Drain Pan 3C Indoor Drain Pan 4 Outdoor Heat Exchanger 4a Fin 5 Outdoor Drain Pan 7 Drain Tank 8 Drain Water Droplet 21 Indoor Air Flow Path 23 Outdoor Air Flow Path 29 Bottom 30 Weir 30A Weir 33 Tip

Claims (4)

[Claims] 1. An outdoor heat having an indoor heat exchanger and an indoor drain pan provided on the upper side of the inner surface of the body, and fins provided on the lower side from which the drain water is dropped from the indoor drain pan formed substantially horizontally. An exchanger and an outdoor drain pan, a drain tank provided below the outdoor drain pan, an indoor air passage formed in the main body through the indoor heat exchanger, and the outdoor heat exchanger. And an outdoor air flow path formed in the main body via the drain water dropping port of the indoor side drain pan is provided on the windward upper side of the outdoor heat exchanger, and the tip of the drain water dropping port is the chamber. A drain water dropping device for a local air conditioner configured to come into contact with the surface of the outer heat exchanger. 2. The drain water dropping device for a local air conditioner according to claim 1, further comprising a weir for collecting drain water generated in the indoor heat exchanger and then flowing the drain water to a drain water dropping port in the indoor drain pan. 3. A weir is provided on the bottom surface of the indoor side drain pan to form a downward slope from the center toward both sides in the longitudinal direction, and a weir for temporarily collecting drain water so that the drain water flows from both sides of the indoor side drain pan to the drain water dropping port. Item 3. A drain water dropping device for a local air conditioner according to item 1 or 2. 4. The drain water dropping port is formed so that a tip portion thereof is inserted between the fins of the outdoor heat exchanger.
Alternatively, the drain water dropping device of the local air conditioner according to 3 above.