JPS60152837A - Separation type individual air conditioner - Google Patents

Abstract

PURPOSE:To make drain piping unnecessary and to contrive an improvement in heat exchange efficiency in an outdoor unit at the time of cooling, by making dewed drainage drop to an outdoor heat exchanger through a water pipe. CONSTITUTION:At the time of cooling, indoor heat exchangers 43, 44, 45 act as evaporators and dewed water is stored in drain pans 52, 53, 54. When the water is stored to some extent, pumps 55, 56, 57 are operated, drip pans 32, 33 are watered through water pipes 49, 50, 51, the water is dripped into outdoor heat exchangers 30, 31 acting upon as condensers through small holes provided on the drip pans 32, 33, drainage is evaporated and along with discharge of the same outdoors through a blow-off port 27 by outdoor blowers 28, 29 condensing capacity is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a system for individual air conditioners used in buildings and the like.

Conventional structure and its problems Conventionally, buildings such as buildings are equipped with individual air conditioner No. 1 to perform air conditioning for each floor and each room. The machine integrates an outdoor unit and an indoor unit and is installed on a wall (verimeter zone).

On the other hand, in recent years, there has also been a separate type individual air conditioner that separates the outdoor unit and the indoor unit to make indoor installation conditions more effective. For example, an installation example of this separate type individual air conditioner is shown in FIG. 1 is the outer wall of the building, 2, 3.4 is a room on each floor, 5, 6.7 is an indoor unit installed in the ceiling of each room 2 to 4, 8.9.10 is installed on each indoor wall. Outdoor units, 11, 12, 13 are each outdoor unit 8
, 9° 1o and each indoor unit 5, 6.7, and 14 is a drain pipe installed through a sleeve or the like in the outer wall 1 of the building, and is connected to each indoor unit 5, 6.7 through each floor. It is connected to branch pipes 15, 16° 17 between 7.

Conventionally, refrigerant pipes 11°12.1
3, while the drain pipe 14 and its branch pipe 15,
16, 17, etc., the piping structure is complicated, and each branch pipe 15, 16, 17 has to have a sufficient slope so that the drain can flow into the drain piping 14. .

OBJECTS OF THE INVENTION The present invention solves the above-mentioned conventional drawbacks, and aims to eliminate the need for drain piping and increase the heat exchange efficiency in the outdoor unit during cooling.

Composition of the Invention The present invention provides an outdoor unit provided on a wall so as to communicate with the outdoors, an indoor unit provided in the ceiling of the room, and a refrigerant pipe connected between the outdoor unit and the indoor unit.
A water pipe is installed to send condensate from the drain pan of the indoor unit to above the outdoor heat exchanger of the outdoor unit via a pump. The water was dripped into the outdoor heat exchanger of the outdoor unit via the water pipe. It is something.

Description of examples An embodiment according to the present invention will be described based on FIG.

2o is provided on the outer wall of a building such as a building, 21° 22.23 is a room on each floor, 24.25 is provided on the wall of rooms 21 to 23 on each floor, and an inlet 26 and an outlet 27 penetrate the outer wall 20. 28.2 Outdoor unit of air conditioner installed in
9 is an outdoor blower installed in each outdoor unit (24, 25), 30° 31 is an outdoor heat exchanger installed opposite the air outlet 27 communicating with the outdoors, and 32, 33 are these outdoor heat exchangers. 30. Use the dropper installed above 31Q to apply this drop♀
JJ] l, ) bottom, a number 17) / J, hole 1 figure □□□ and l
It is something. 34, 35, 36 are located behind the ceilings of each room 21 to 23, and each indoor unit 7) 37° 38.
There are 39. 40, 41.42 is an indoor blower, 4
'3,44.45 is an indoor heat exchanger, 46.47.48
are each outdoor unit 24, 25 and each indoor unit 7) 3
The refrigerant pipe is connected between 7.38 and has an outgoing pipe and a returning pipe. 49°50.51 is indoor heat exchanger 43.4
Drain pan 52.53.5 provided below 4.45
4 and a dripper 32.33 provided above the outdoor heat exchanger 30.31, drain pans 52, 53 are provided.

Water pipe for conveying the drain from 64, 56°56.
Reference numeral 57 denotes a pump installed in the middle of the water pipes 49, 50, and 51, and the operation of the pumps 55, 56, and 57 can be stopped by the drain storage area. The water pipe 49°50.51 is connected to the dropper 32.
, 33. 68 is an indoor unit)3
7, 38, and 39 are suction ports, and 69 is an outlet.

In the above configuration, in the outdoor unit 24, 26, air supply and exhaust for heat exchange is performed at the suction port 26 communicating with the outdoors and the Suita port 27, and in the indoor unit 37, 38, 39, the air intake port on the indoor side Air supply and exhaust for heat exchange is performed at the and Suita outlet 59. And refrigerant pipe 46.4
Refrigerant is circulated through 7.48 to provide heating and cooling. (The compressors are mounted on the outdoor units 24, 25.) In such a system, during cooling, the indoor heat exchangers 43, 44, 45 act as evaporators, so that condensed water flows into the drain pans 62, 53. .54, 67 was operated and water was sent to the dropper 32.33 via the water pipes 49, 50.51, and the outdoor heat exchanger acting as a condenser was passed through the small hole provided in the dropper 32.33. Drop into container 30.31,
The condensate is vaporized and discharged to the outside from the outlet 27 by the outdoor blowers 28 and 29, and the condensation capacity is increased.

Effects of the Invention As described above, the present invention provides each outdoor unit provided on a wall surface in communication with the outdoors, and each indoor unit provided indoors under the ceiling.
refrigerant piping connected between each of the indoor and outdoor units;
A water pipe is installed to send drain water from the drain pan of the indoor unit 7) via a pump to a dripper installed above the outdoor heat exchanger of the outdoor unit to prevent condensation from condensing on the indoor heat exchanger during cooling. Since the drain is dripped into the outdoor heat exchanger via the water pipe and the drain is processed,
Drainage pipes to the outside of the building are no longer required, and branch water pipes are installed between the indoor units on each floor and the drain water pipes, but unlike drain pipes and branch pipes, these water pipes are thick. It is not necessary to use a tube with a large diameter, and a thin tube can be used, which is advantageous in terms of equipment costs, and also has the effect of increasing the condensing capacity of the outdoor heat exchanger.

[Brief explanation of drawings]

FIG. 1 is a system diagram of a conventional separate type individual air conditioner in a building, etc., and FIG. 2 is a system diagram of a separate type separate air conditioner according to an embodiment of the present invention. 24.25... Outdoor unit, 30, 31 - Outdoor heat exchanger, 32, 33... Dripping device, 34-36
・・Behind the ceiling, 37~39 Indoor unit, 46~48
・Refrigerant piping, 49-61 ・Water pipe, 52-54
...Drain pan. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
N

Claims (1)

[Claims] Each outdoor unit is installed on the wall of the building to communicate with the outside, each indoor unit is installed in the ceiling of each room, and the refrigerant piping connects each of the outdoor units and each indoor unit. Separate individual air conditioner equipped with water pipes that send condensate from the unit's drain pan via each pump to the dripper installed on one side of the outdoor heat exchanger of each outdoor unit.