JPH029314Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) This invention relates to a treatment device for condensate generated in an evaporator in a ceiling-suspended heat pump type air conditioner.

(Prior art) In this type of air conditioner, the drain generated in the evaporator is discharged outdoors through specially installed piping, or the drain condenser is sprayed with water by a pump, evaporated, and discharged outdoors through the ceiling. was.

(Problems to be solved by the invention) The former method uses piping in the above-mentioned conventional technology, and the piping equipment in the overflowing ceiling is complicated, and there are disadvantages such as water leakage. The unit independently air-conditions the room, and the temperature and humidity in the attic are not constant like in the room, so depending on the situation, evaporation may not be possible and the continuous operation of the air conditioner may be interrupted to generate condensate. There was an inconvenience.

(Means for solving the problem) The present invention utilizes the fact that the temperature and humidity of the exhaust air from the room is approximately constant due to central heating and cooling, and by using this exhaust air, condensate is efficiently evaporated together with the exhaust air. In a heat pump type air conditioner for indoor local heating and cooling, which is installed on the ceiling of a room that is cooled and heated by a central heating and cooling method, the evaporator is located above the condenser in the main body case of the air conditioner. The apparatus is characterized in that it is configured such that drain in a drain receiver provided on the lower surface of the evaporator drips onto the condenser.

(Example) In Fig. 1, A is a central air conditioner for central heating and cooling, in which outside air is introduced by a fan B and mixed air is blown out from an outlet D opened in a room C.
The room is heated and cooled, and some of the indoor air is sent to the exhaust port E.
A heat pump type air conditioner 1 is provided in the ceiling F of the room C for local heating and cooling in conjunction with the above-described central heating and cooling system.

The heat pump type air conditioner 1 has the following configurations:
As shown in Fig. 3, the refrigeration cycle device is equipped with a compressor 2, evaporator 3, condenser 4, fans 5, 6, etc. Facing the ceiling F, there is a conditioned air outlet 7 and an indoor air inlet. 8 is opened, and an exhaust outlet 1 which separately opens a suction port 9 for indoor air and blows out the intake air from this into the ceiling through the condenser 4.
0 was provided with an opening in the ceiling, and an exhaust duct 11 having an exhaust fan 12 was further provided in the ceiling.

The evaporator 3 is provided above the condenser 4, and a drain receiver 13 is provided on the lower surface of the condenser 4, and the drain receiver 13 is provided on the upper surface of the condenser 4, and the condenser 4 is provided on the lower surface of the condenser 4. A dripping pan 14 having a drain dripping hole was provided on the top surface, and an extra drain receiver 15 was also provided on the bottom surface of the condenser 4.

(Function) In the above device, the central air conditioner A air-conditions the room C with the conditioned air from the outlet D through central heating and cooling, while the heat pump air conditioner 1 operates to air the room C. Locally heated and cooled. That is, in the summer, the fan 5 blows the indoor air from the suction port 8 through the evaporator 3 as cold air into the room C from the outlet 7 as shown by the arrow X in FIG. According to the intake outside air amount, the indoor air is drawn out from the suction port 9 by the fan 6 as shown by the arrow y, passes through the condenser 4, is exhausted into the ceiling from the exhaust outlet 10, and is passed through the exhaust duct 11 by the fan 12. Released outdoors.

In winter, by switching a four-way valve (not shown) to reverse operation of the refrigeration cycle, the evaporator 3 is converted into a condenser, and the condenser 4 is converted into an evaporator, so that indoor air passes through the condenser. As before, the hot air is blown out from the air outlet 7 with the flow shown by the arrow X to heat the interior of the room C, and some of the air in the room is passed through the evaporator with the flow shown by the arrow y and sent to the exhaust air outlet. 10 into the ceiling, exhaust duct 1
1 and then released outdoors.

In the heating operation described above, drain is generated in the evaporator 3 and collected in the drain receiver 13 on the lower surface, but this drain immediately flows from the discharge hole 13 to the drip pan 1 on the lower surface.
The condensate flows into the condenser 4 and drips onto the condenser 4 from the drip opening, and is evaporated by the heat dissipation effect of the indoor exhaust from the condenser 4. The condensate is exhausted into the ceiling along with the exhaust, and is discharged outdoors through the exhaust duct 17. released.

Incidentally, as shown in another embodiment in FIG. 4, the drain accumulated in the surplus drain receiver 15 is pumped up by the pump 16
If this is dripped and circulated through the sprinkler pipe 17, the evaporation effect of the drain can be further promoted.

(Effects of the invention) According to the invention, air conditioned with outside air is blown into the room by the central cooling and heating equipment, and a part of the indoor air is exhausted outside through the condenser and the ceiling. However, the part of the indoor air that passes through the condenser has a humidity that can evaporate the condensate, and the temperature remains almost constant due to the indoor air supplied by central heating and cooling, so the condensate cannot be evaporated. It is extremely effective and the evaporated air is discharged outdoors by exhausting it from the room, so it does not disturb the indoor air conditioning and does not require piping or other exhaust equipment for drain exhaust as in the past. This has the effect of simplifying the installation of this type of air conditioner.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; Fig. 1 is a cutaway side view of the device, Fig. 2 is an enlarged sectional view of the main parts, Fig. 3 is a cutaway plan view of a heat pump type air conditioner, and Fig. 4 is a cutaway side view of the device. The figure is a cutaway side view showing another embodiment. A... Central air conditioner for central heating and cooling, C...
Room, F... Ceiling, 1... Heat pump air conditioner, 3... Evaporator, 4... Condenser, 5, 6... Fan, 7... Conditioned air outlet, 8, 9... Indoor air Intake port, 10... Indoor air exhaust port, 13...
Drain receiver.

Claims (1)

[Scope of utility model registration request] In a heat pump type air conditioner for indoor local heating and cooling, which is installed on the ceiling of a room that is cooled and heated using a central heating and cooling system, an evaporator is installed above the condenser in the main body case of the air conditioner, and the evaporator is A drain processing device for a ceiling-suspended air conditioner configured to allow drain in a drain receiver provided on the bottom surface to drip onto a condenser.