JPS63153341A - Air ventilating and conditioning unit - Google Patents

Abstract

PURPOSE:To perform economical air conditioning operation, by cooling the air in a room by taking in the outdoor air at night when the atmospheric temperature is low during the summer time season when air-cooling is needed, as well as to perform air conditioning operation by under heat recovery. CONSTITUTION:Part of air flowing from an air intake 34 passes through a communicating port 26, via a discharge port 39 of a fan 37, flowing through a total heat exchanger 42, and is discharged to the outdoors from a discharge port 49 on regard to the ventilating air at the time of an air-cooling or an air-heating operation with ventilation. While a suction air flows in through an opening 51 from an air intake 19 and an air intake 48, via the discharge port 38 of a fan 37, flowing through the total heat exchanger 42 which recovers heat, passing through a heat exchanger 28 from a communicating port 27, diffused into a room from an air diffuser 22. When an air conditioning operation by outdoor air is possible, dampers 40, 41 are closed and the air intake 34 is closed too, while a damper 35 is opened to connect the suction-air port 32 with the downstream side of an air filter 31. In this state a fan 29 is driven. With such an arrangement the outdoor air from the suction-air opening 19 passes through the heat exchanger 28 via an opening 50 and the air intake 32, and in diffused into the room to cool the air in it.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a ventilation air conditioning unit installed in a verimator zone of a building or the like.

2. Description of the Related Art Conventionally, this type of ventilation air conditioning unit has a configuration as shown in FIG. That is, in FIG. 6, a fan coil unit 2 and a total heat exchange unit 3 are installed along the outer wall 1 of the verimeter zone of the building, and indoor air conditioning is achieved by the heat exchanger built into the body of the fan coil unit 2. By passing cold and hot water through the container 4 and operating the blower 5, indoor air is taken in from below the front surface 2a, passed through the heat exchanger 4, and cold and hot air is blown out from the front side. ducts to circulate indoor air. On the other hand, the total heat exchange unit 3 installed in close proximity to the fan coil unit 2 has a total heat exchanger 6 in its main body, and an outside air intake provided opposite to an outside air intake lower provided through the outer wall 1. It consists of a second blower 8 for air intake and a third blower 10 provided so as to communicate with an exhaust port 9 provided through the outer wall 1, forming a ventilation flow path. By operating the second blower 8 and the third blower 1o, the indoor air is exhausted from the indoor exhaust port 11 through the total heat exchanger 6 as shown by arrow A, and is exhausted from the exhaust port 9. Air is taken into the room from the outside air intake lower through the total heat exchanger 6 and through the indoor air outlet 12 as shown by arrow B, and ventilation is performed to take in outside air and exhaust the indoor air, and heat is recovered by this intake and exhaust. It was used to ventilate the room as well as to ventilate the room.

Problems to be Solved by the Invention In such a conventional configuration, indoor air conditioning is performed by the fan coil unit 2, and the total heat exchange unit 3
Although the heat of the exhaust air can be recovered while performing ventilation, the fan coil unit 2 must be operated to cool the air at night even though the outside air temperature has dropped during the summer cooling season. Although it is possible to cool the room by introducing outside air, this is not possible, and the fan coil unit 2 is operated uneconomically. In addition, to avoid this, the total heat exchange unit 3
It is possible to cool the room by introducing outside air into the room while operating the system, but since the total heat exchanger is not used, the outside air is warmed and enters the room, and the total heat exchanger 3 is Since it is provided for indoor ventilation and heat recovery, the ventilation air volume is greatly insufficient for outdoor air cooling, and it is almost useless for outdoor air cooling. Because the air flow path leading to the indoor air outlet 12 and the air flow path from the indoor exhaust port 11 to the exhaust port 9 are open, noise from outside the building enters the indoor side, increasing noise indoors. There was a problem.

The present invention solves these problems by performing heating and cooling while recovering heat in the same way as conventional methods, and at the same time, at night when the outside air temperature drops during the summer cooling season, it cools the room by taking in outside air. Furthermore, the present invention provides a ventilation air conditioning unit configured to block outside noise.

Means for Solving the Problems In order to solve this problem, the present invention provides a chamber having a chamber suction port and a chamber exhaust port and provided on the outer wall, a main body connected to the chamber, and a chamber inside the main body. A partition plate that connects the air conditioning room and the ventilation room and has an intake communication port and an exhaust communication port, an outside air cooling intake port that is provided on the leeward side of the air conditioning room and communicates with the chamber intake port, and an indoor room that communicates with the chamber. An air intake port, an air filter, a blower, and a heat exchanger between the intake port and the indoor air outlet, and a 1 that communicates with both the outside air cooling intake port and the indoor air intake port, and opens and closes the leeward side of the air filter. A ventilation blower is provided in the ventilation chamber to form an exhaust flow path that takes indoor air through an exhaust communication port formed in the partition plate and exhausts the air to the outside through an exhaust port, which communicates with the chamber suction port. A ventilation blower that forms an intake flow path that takes in outdoor air through a ventilation intake port and into the room through an intake communication port provided on the partition plate, and a total heat generator that is provided at the intersection of the exhaust flow path and the intake flow path. It is equipped with an exchanger and a ventilation damper that opens and closes the outlet of the ventilation blower, and when the operation is stopped, each damper is closed, and when the outside air is cooled, the operation of the ventilation blower is stopped, the ventilation damper is closed, and the indoor air intake is closed. The outside air cooling intake port is closed and the blower is operated to draw outside air into the air conditioned room and blow it into the room.

With this configuration, when performing air conditioning, the outside air cooling inlet side is closed by a damper, the indoor air intake is communicated with the linear filter, indoor air is taken in, and the air is passed through the air filter, blower, and heat exchanger. When air conditioning is performed by the air flow path blown out from the indoor outlet and outside air is being cooled, the indoor air inlet side is closed by a damper, and the outside air is sucked in from the outdoor air cooling inlet, passes through the air filter, blower, and heat exchanger. The outside air is cooled by the air flow path blown out from the indoor air outlet.On the other hand, when performing ventilation at the same time as the air conditioning, indoor air is taken in from the exhaust communication port by the ventilation blower, and the total heat is removed from one outlet of the ventilation blower. The air in the exhaust flow path is exhausted from the exhaust port via the exchanger, while the outside air is taken in from the ventilation intake port, and from the other discharge port of the ventilation blower, the air is taken into the room from the intake communication port through the total heat exchanger. This means that the heat will be recovered.

EXAMPLE An example of the present invention will be described below with reference to FIGS. 1 to 5. In FIG. 2, a chamber 17 is installed so as to fit into the outer wall 16, and a main body 18 of the ventilation air conditioning unit is installed in connection with this chamber 17. The chamber 17 has a chamber/bar suction port 19.
and the chamber exhaust port 2o are separated by a sixth partition plate 21. An indoor air outlet 22 is provided on the top surface of the main body 18. Next, referring to FIG. 1, the main body 18 will be explained in detail. An air conditioning room 23 and a ventilation room 24 are provided inside the main body 18.
A partition plate 25 is provided to separate the air and air, and the partition plate 26 is provided with an exhaust communication port 26 that is open as an exhaust passage and an intake communication port 27 that is open as an intake passage that takes in outside air. On the side of the air-conditioned room 23, there is a heat exchanger 28 that is inclined upward and that passes cold water or hot water, a blower 29 for indoor circulation, and a high-performance air filter that is stacked with a pre-filter 30. A filter 31 is provided. On the windward side of these air filters 31, there is an outside air cooling intake port 32 that is introduced when performing cooling with outside air, and an indoor air intake port 34 (indoor intake port 34, which is provided on the indoor side at a position symmetrical to the outside air cooling intake port 32). 4), which communicates with the leeward side of the air filter 31 and forms an air flow path as shown by arrow A in FIG. One damper 36 is provided to open and close the cooling air intake port 32 side or to open and close the indoor air intake port 34 side.

On the other hand, on the side of the ventilation room 24, there is provided a ventilation blower 37, which is composed of a fan (not shown) fixed downwardly on both shafts of a motor 36, and has two discharge ports 38,39. Ventilation dampers 40 and 41 are provided on both wings to open and close the discharge ports 38 and 39 to prevent outside air from entering when ventilation is stopped. A known total heat exchanger 42 is provided above the ventilation room 24, and a second partition plate 43. Third partition plate 44° Fourth partition plate 46. A fifth partition plate 46 is provided, and the shaft of the ventilation damper 40, 41 passes through the fifth partition plate 46. Then, an exhaust flow path (arrow B) that takes in air from the indoor intake port 34 and exhausts it to the outside, and an intake flow path (arrow C) that takes in outside air from the ventilation intake port 48 and takes it in through the intake communication port 27 are formed. ing. Further, a third air filter 47 is attached to the intake side surface of the total heat exchanger 42. On the side of the ventilation blower 37, there is a ventilation intake port 48 for introducing outside air through the chamber 17, and a total heat exchanger 4.
An exhaust port 49 is provided on the second side to exhaust indoor air. Note that an opening 60 of the chamber 17 shown in FIG. 6 corresponds to the outside air cooling inlet 32 of the main body 18, and an opening 61 corresponds to the ventilation inlet 48 of the main body 18.

In the above configuration, during cooling/heating ventilation in which cold water or hot water is passed through the heat exchanger 28 while performing air conditioning and ventilation, the damper 36 closes the outside air cooling intake port 32 side, and the indoor air intake port 34 side is closed by the damper 36. It communicates with the filter 31 side and opens the ventilation dampers 40 and 41.

When the blower 29 is operated, indoor air flows in from the indoor intake port 34 as shown by arrow A, passes through the pre-filter 30 and the high-performance air filter 31, and the purified air passes through the blower 29 and the heat exchanger 28. The air is blown into the room from the indoor air outlet 22, and air is cooled and heated as shown in the air flow path shown by arrow A. On the other hand, in the exhaust air during ventilation, a part of the air that flows in from the indoor intake port 34 passes through the exhaust communication port 26, passes through the discharge port 39 of the ventilation blower 37, and flows through the total heat exchanger 42 as shown in the air flow path shown by arrow B. An exhaust flow path is formed from the exhaust port 49 to the outside via the chamber exhaust port 20, and the intake air flows from the chamber intake port 19 to the open bottom portion 61, and then from the ventilation intake port 48 to the ventilation blower 37 as shown by arrow C.
The exhaust air flows from the discharge port 38 through the total heat exchanger 42, where the heat of the exhaust air is recovered, and flows from the intake communication port 27 to the back side of the heat exchanger 28, where it passes through the heat exchanger 28 where it is cooled or heated. This forms an intake flow path through which air is blown into the room from the indoor air outlet 22.

Next, when ventilation is stopped and only heating and cooling is performed, the ventilation dampers 40 and 41 are closed and heating and cooling is performed through the air flow path shown by the above-mentioned arrow A.

Next, when cooling is possible with outside air, such as at night or during the summer season, the ventilation dampers 40 and 41 are closed, and the damper 36 is moved to the solid line position, that is, the indoor air intake 34 is closed, as shown in the arrow in FIG. As shown in FIG.
9 through the opening SO (arrow E), the outside air cooling intake port 32 passes through the blower 29, passes through the heat exchanger 28 (cold/hot water flow is stopped), and is blown out from the indoor outlet 22 to cool the room with outside air.

Next, when only ventilation is performed in the ventilation room 24, damper 3
5 closes the outside air cooling intake port 32 side, connects the indoor air intake port 34 side to the air filter 31 side, and opens the ventilation dampers 40 and 41 to stop the blower 29 during the above-mentioned cooling/heating ventilation. By stopping the water flow to the heat exchanger 28 and operating only the ventilation blower 37, only ventilation is performed.

Further, when the system is completely stopped, the damper 36 is in a state where the indoor air intake port 34 side is open, that is, the outside air cooling intake port 32 is closed, thereby preventing inflow of outside air and noise from the outside.

Effects of the Invention As is clear from the description of the embodiments described above, the present invention provides an air flow path that connects the damper from the indoor intake port to the leeward side of the air filter during heating and cooling, and a ventilation damper. When the air is opened, indoor air is circulated for heating and cooling, and at the same time, heat is recovered from the intake and exhaust air through a total heat exchanger, and this heat-recovered air is cooled or heated again and blown into the room. During cooling, the ventilation damper is closed and the air flow path is switched so that the damper communicates with the outside air cooling inlet side and the downwind side of the air filter. The effect can be obtained. In addition, the air whose heat has been recovered through the total heat exchanger in the intake flow path is recooled or reheated in the heat exchanger and blown into the room, so the recovered outside air remains low (during heating) or Since the air is not brought into the room at a high level (during cooling), there is no discomfort. Furthermore, when the vehicle is completely shut down, the damper is closed on the outside air cooling intake side, creating a seal with the outside, reducing the transmission of outside noise to the inside of the room, and preventing outside air from entering due to outside wind pressure. It has the effect that it can be done.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of an air conditioning ventilation unit according to an embodiment of the present invention, Fig. 2 is a top sectional view of the air conditioning ventilation unit, Fig. 3 is a sectional view of the ventilation chamber of the air conditioning ventilation unit, and Fig. 4 is a sectional view of the ventilation chamber of the air conditioning ventilation unit. FIG. 6 is a cross-sectional view of the air conditioning room of the air conditioning ventilation unit, FIG. 6 is a perspective view of a chamber connected to the air conditioning ventilation unit, and FIG. 6 is a one-sided configuration diagram of a conventional ventilation device and air conditioner. 16...Outer wall, 17...Chamber,
18... Body, 23... Air conditioning room, 24
...Ventilation room, 26...Partition plate, 26.
...Exhaust communication port, 27...Intake communication port,
28... Heat exchanger, 29... Blower,
32...Outside air cooling intake port, 34...Indoor air intake port, 36...Damper, 37...
・Ventilation blower, 40.41...Ventilation damper,
42... Total heat exchanger, 48... Ventilation intake port, 49... Exhaust port.

Claims (1)

[Claims] A chamber provided on the outer wall and having a chamber suction port and a chamber exhaust port, a main body connected to this chamber, and a main body that is divided into an air conditioning room and a ventilation room and has an intake communication port and an exhaust communication port. A partition plate, an outside air cooling inlet that is provided on the leeward side of the air conditioned room and communicates with the chamber inlet, an indoor air intake that communicates with the room, and an air filter, blower, and heat exchanger between the air intake and the indoor air outlet. A damper is provided that communicates with the exchanger, both the outside air cooling intake port and the indoor intake port, and opens and closes the leeward side of the air filter, and the ventilation room is provided with a damper that communicates with both the outdoor air cooling intake port and the indoor intake port, and the ventilation room is provided with A ventilation blower forms an exhaust flow path that takes indoor air in and exhausts it outdoors through an exhaust port, and a ventilation blower that takes in outdoor air through a ventilation intake port that communicates with the chamber suction port, and exhausts indoor air through an intake communication port provided on the partition plate. A ventilation blower that forms an intake flow path through which air is taken in, a total heat exchanger provided at the intersection of the exhaust flow path and the intake flow path, and a ventilation damper that opens and closes a discharge port of the ventilation blower. When stopping, each damper is closed, and when outside air is being cooled, the ventilation blower is stopped, the ventilation damper is closed, and the indoor air intake is closed, and the outside air cooling air intake is opened and the blower is operated to operate the air conditioner. A ventilation air conditioning unit that takes in outside air and blows it out indoors.