JPS5824700B2 - Central exhaust system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a centralized exhaust system for indoor hot air and warm air, in which one end of a duct main body 1 is opened to the ceiling of a building, and the other end of the duct main body 1 is connected to an air intake of a blower 2. A hot air exhaust pipe 3 for discharging hot air outdoors and a warm air return pipe 4 for returning warm air indoors are connected to the exhaust side of the blower 2 and are branched so as to be openable and closable. This relates to a central exhaust system.

Conventionally, G-TR has had the disadvantage that the hot summer air that collects on the ceiling of a building increases the cooling load, while the warm air in the winter sharpens the temperature difference between the top and bottom, making your feet cold and your head hot, increasing your discomfort. there were.

The present invention solves the above-mentioned drawbacks, and its purpose is to connect a hot air exhaust pipe and a warm air return pipe to the other end of a duct body whose one end is opened to the ceiling surface and which are branched into a hot air exhaust pipe and a warm air return pipe so as to be openable and closable. As a result, we have installed a central exhaust system that discharges the hot air that collects on the ceiling of buildings outside in the summer and returns warm air in the winter indoors, eliminating discomfort and significantly reducing the air conditioning load. It is on offer.

The present invention will be explained in detail below with reference to one embodiment shown in the drawings.

The duct main body 1 is arranged in the ceiling of a building, and has one end opening from the ceiling surface to the indoor side, and the other end of the duct main body 1 is connected to the intake side of a blower 2, which can be turned on and off with a ventilation fan switch 5. There is.

A hot air exhaust pipe 3 and a warm air return pipe 4 are connected to the exhaust side of the blower 2 so as to be branched, and an electric damper 6 for summer use is disposed within the base of the hot air exhaust pipe 3 whose tip is opened outdoors.
The hot air exhaust pipe 3 can be opened and closed by operating the double-pole, double-throw seasonal selector switch 7.

The tip of the warm air return pipe 4 opens at the bottom of the room, and an electric damper 8 for winter use is disposed within the base end of the warm air return pipe 40.
The warm air return pipe 4 can be opened and closed by operating the seasonal selection switch 1.

However, in the summer, after operating the seasonal changeover switch 7 and closing the warm air return pipe 4 with the winter electric damper 8, and opening the summer electric damper 6, the hot air exhaust pipe 3 is communicated with the duct body 1. The ventilation fan switch 5 operates the blower 2 to suck indoor hot air that collects on the ceiling into the duct body 1, and then discharges the hot air from the blower 2 to the outside through the exhaust pipe 3 to lower the indoor temperature. Eliminate discomfortg-
It also reduces the cooling load.

On the other hand, in the winter season, operate the seasonal selector switch 1 to close the hot air exhaust pipe 3 with the summer electric damper 6 and open the winter electric damper 8 to connect the warm air return pipe 4 to the duct body 1 as shown in the figure. After that, the ventilation fan switch 5 operates the blower 2 to suck the warm air that collects on the ceiling into the duct body 1, and then sends it back to the lower part of the room from the blower 2, reducing the temperature difference between the top and bottom of the room and causing discomfort. This eliminates the problem and reduces the heating load.

As mentioned above, the end of the duct body 1 is opened to the ceiling of the building, and the intake side of the blower 2 is connected to the other end of the duct body 1, so that hot air in summer and warm air in winter that collects on the ceiling can be transferred to the duct body. Aspirate into 1.

be able to.

Moreover, a hot air exhaust pipe 3 and a warm air return pipe 4 are provided on the exhaust side of the blower 2.
Since the ducts are branched so that they can be opened and closed, in the summer, the hot air exhaust pipe 3 is opened and the hot air return pipe 4 is closed, and the hot air that collects on the ceiling is discharged from the duct body 1 to the outdoors via the hot air exhaust pipe 3. By lowering the indoor temperature g-v, discomfort can be eliminated and the cooling load can be reduced.

In addition, in winter, the warm air return pipe 4 is opened and the hot air exhaust pipe 3 is opened.
The warm air that collects on the ceiling is returned to the room from the duct body 1 through the warm air return pipe 4, reducing the vertical temperature difference in the room, eliminating discomfort, and reducing the heating load. can be done.

[Brief explanation of the drawing]

The figure is a schematic explanatory diagram of an embodiment of the present invention, in which 1 is a duct main body, 2 is a blower, 3 is a hot air exhaust pipe, and 4 is a hot air return pipe.

Claims (1)

[Claims] 1 Open one end of the duct main body to the ceiling of the building, connect the intake side of the blower to the other end of the duct main body, and connect the hot air exhaust pipe to the exhaust side of the blower to discharge hot air outdoors and return the warm air indoors. A central exhaust system characterized in that a warm air return pipe for cooling and a warm air return pipe are branched so as to be openable and closable.