JPS6213940A - Separation type air conditioner - Google Patents

Abstract

PURPOSE:To eliminate a long drain pipe and decrease an expenditure of work by a method wherein drain dewed in an indoor heat exchanger is received by an inclined drain pan in the indoor unit and sent to an upper sprinkler of an outside heat exchanger, the drain is sprinkled to be vapored and the non- vaporized drain water is evaporated by an electrical heater. CONSTITUTION:Dew is formed at an indoor heat exchanger 32 and drain water is dropped into a drain pan of an indoor unit. The dropped drain water is flowed in a pipe 34 arranged to turn in front of an entire heat exchanger 30, flowed in the pipe 29a of the sprinkler 29 and then sprinkled to the indoor heat exchanger 26. The water is heat-exchanged with a condensation heat with this sprinkling action, the drain is evaporated, and the vapor is discharged out of the house through a discharging port by an outdoor blower unit 25. The non-evaporated drain is dripped into a drain pan of an outdoor unit. The dripped drain is heated by an electrical heater 28 and evaporated and flowed in the heat exchanger of the outdoor unit together with the surrounding air in the discharging flow passage flowing from the surrounding air suction port 37, passed through the outdoor blower 25, and discharged out of the house through the discharging port.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an individual air conditioner, and more particularly to a drain treatment device thereof.

2. Description of the Related Art Conventionally, an individual air conditioner installed through a wall on the window side of a building has a structure as shown in FIGS. 3 and 4. The box-shaped main body 1 is composed of an outdoor unit section 2, a total heat exchange unit 3, and an indoor unit 4. The outdoor unit 2 includes an outdoor heat exchanger 6 and an outdoor blower 6 installed above a compressor 7. is provided. The total heat exchange unit 3 is provided with a total heat exchanger 8 to recover exhaust heat by passing indoor air exhaust and outside air in an intersecting manner.

The indoor unit 4 is provided with a main filter 9, an indoor blower 10, and an indoor heat exchanger 11 on the lower side. A drain pan 12 is provided below the indoor heat exchanger 11 to receive condensate that condenses during cooling. Drain more. The drain pipe 14 penetrates into the floor 1e, is disposed in the attic 18 of the ceiling surface 17 on the lower floor, and is connected to a predetermined position.

Problems to be Solved by the Invention In such a conventional configuration, a long drain pipe 14 is installed in the attic of the building to drain condensate condensed on the indoor heat exchanger 11, which acts as an evaporator during cooling. Problems include problems such as the joint part 14a of the drain pipe 14 being incomplete, and if cracks develop over time, water leaks from the cracks and stains the ceiling surface 17. The present invention solves these problems, and aims to simplify construction work and eliminate water leakage accidents by eliminating the need for drainage pipes.

Means for Solving the Problem In order to solve this problem, the present invention provides an outdoor unit that includes an outdoor blower, an outdoor heat exchanger, and an electric heater for heating the drain provided below the outdoor heat exchanger. The indoor unit includes an outdoor unit having a drain pan, and an indoor unit having an indoor blower and an indoor heat exchanger, and an indoor unit drain pan is provided below the indoor heat exchanger to receive the drain. A drain pipe is connected above the outdoor heat exchanger.

Function: With this configuration, condensate that condenses on the indoor heat exchanger during cooling falls into the indoor unit drain pan, flows through the pipes, and is sprayed from the water sprinkler to the outdoor heat exchanger.This water spraying causes the outdoor heat exchanger to act as a condenser. This increases the condensation effect, and the drain that cannot be sprayed with water is further evaporated by the electric heater in the outdoor unit drain pan, and then exhausted to the outside.

Embodiment An embodiment of the present invention will be described with reference to FIGS. 3 and 4. The main body 21 of the individual air conditioner, which is installed through the wall on the window side of the building, has an outdoor unit part 22,
It consists of a total heat exchange unit 23 and an indoor unit section 24.

The outdoor unit section 22 includes an outdoor blower 26 above,
An outdoor heat exchanger 26 and an outdoor unit drain pan 27 having an independent frame bottom plate are provided below. This outdoor drain pan 27 is equipped with an electric heater 28 such as a sheathed heater, and a water sprinkler 29 with many holes in the pipe body.
The system heats the water that is sprinkled from the drain and does not evaporate completely. The total heat exchange unit 23 is provided with a total heat exchanger 30. The indoor unit section 24 is provided with an indoor air outlet 31, an indoor heat exchanger 32, and an indoor unit drain pan 33 that is inclined toward the left outdoor unit 22 below it. A pipe 34 connects to a water sprinkler 29 provided with a large number of holes 29b. An indoor blower 35 is provided below the indoor unit section 24.

In the above configuration, the indoor air is supplied to the indoor suction port 36 on the indoor side.
A flow path in which outside air is sucked in from the air, flows through the indoor blower 36 and the indoor heat exchanger 32, and is blown out from the indoor air outlet 31, and outside air is sucked in through the outside air intake port 37 at the rear (back side) of the total heat exchanger 3o. Outdoor fan 2 that wraps around below the outdoor heat exchanger 26
A through hole 39 in a wall 38 provided opposite to the through hole 3
A flow path for exhausting air to the outside is formed through an exhaust port 40 provided at 9. During cooling, the outdoor heat exchanger 26 acts as a condenser and the indoor heat exchanger 32 acts as an evaporator, but dew condensation occurs in the indoor heat exchanger 32 and drain falls into the indoor unit drain pan 33. The fallen drain flows through a pipe 34 disposed so as to detour to the front side of the total heat exchanger 3o, and flows through the pipe 29a of the water sprinkler 29, and sprinkles water on the outdoor heat exchanger 26 beyond the person 2eb. This water spraying exchanges heat with condensation heat, evaporates the drain, and the evaporated steam is exhausted outdoors from the exhaust port 4o by the outdoor blower 25. However, if the amount of condensate becomes large, the condensation heat of the outdoor heat exchanger 26 may not be enough to evaporate the condensate, so the condensate that cannot be evaporated will drip into the outdoor unit drain pan 27. The dripped condensate is further heated and evaporated by the electric heater 28 (sheathed heater), and flows through the outdoor heat exchanger 26 together with the outside air in the exhaust flow path that flows in from the outside air suction port 37, passes through the outdoor blower 26, and is discharged to the outside through the exhaust port 4o. In addition, it is inevitable that rainwater will enter the outdoor unit drain pan 27 through the through hole 39 during strong winds and rain.When this rainwater enters, the electric heater 28 must be energized. Rainwater can be heated and evaporated.

As a result, the inside of the outdoor unit drain pan 27 is always kept free of water droplets, and both the indoor unit drain pan 33 and the outdoor unit drain pan 27 can be kept almost dry, and there is no bad odor caused by water corrosion.

Effects of the Invention According to the present invention, condensate condensed on the indoor heat exchanger is received by the indoor unit drain pan provided at an angle toward the outdoor unit, and from this indoor unit drain pan is transferred to the outdoor heat exchanger via a pipe. The condensate is sent to the sprinkler system above, and the condensate is sprinkled onto the outdoor heat exchanger from the sprinkler system to evaporate it.Any condensate that cannot be evaporated is evaporated by an electric heater installed in the outdoor unit drain pan. The drain evaporates reliably, eliminating the need for long drain pipes installed in the attic of the building. Therefore, the cost of constructing these drain pipes is enormous, so this is a significant cost reduction, and there is no problem of cracks in the drain pipes, and there is no staining of ceilings or other buildings due to water leakage. .

[Brief explanation of the drawing]

Fig. 1 is a sectional view of an individual air conditioner according to an embodiment of the present invention, Fig. 2 is a sectional view of the individual air conditioner installed, and Fig. 3 is a sectional view of the individual air conditioner according to an embodiment of the present invention. FIG. 4 is a perspective view of the individual air conditioner, and is a sectional view of the main part of the individual air conditioner installed. 22... Outdoor unit part, 23... Total heat exchange unit, 24... Indoor unit part, 2
6... Outdoor heat exchanger, 27... Outdoor unit drain pan, 28... Electric heater, 29...
...Water sprinkler, 32...Indoor heat exchanger, 3
3... Indoor unit drain pan, 34... Management O Name of agent: Patent attorney Toshi Nakao, male, and one other person - Mi

Claims (1)

[Claims] The outdoor unit includes an outdoor fan, an outdoor heat exchanger, and an outdoor unit drain pan equipped with an electric heater for heating the drain provided below the outdoor heat exchanger, and an indoor fan and an indoor heat exchanger. An indoor unit drain pan is provided below the indoor heat exchanger and is inclined toward the outdoor unit, and drain is guided above the outdoor heat exchanger from the indoor unit drain pan. Individual air conditioners connected via pipes.