JPH01123929A - Ventilation air-conditioning unit - Google Patents

Abstract

PURPOSE:To enable the performing of both air-conditioning and ventilation at the same time by inhaling indoor air from an indoor discharge port by a ventilation air blower, discharging the air from discharge port through a total heat exchanger by a ventilating fan, and sucking outside air simultaneously from a ventilation suction port through a total heat exchanger by a suction fan. CONSTITUTION:The indoor air introduced from an indoor discharge port by a ventilation air blower 37 is made to flow into a total heat exchanger 42 through an outlet 39 by a discharge fan 36b for the ventilation air blower 37, a flows upward from a discharge port 49 through a chamber discharge port 15, thereby forming a discharge passage where the air is discharged from a chamber discharge port 20 to outdoors. At the same time, the air sucked-in is made to flow into an opening 51 from a chamber suction port 19, then from a ventilation suction port 48 the air flows into the total heat exchanger 42 by a suction fan 36a through a discharge port 38 where the heat of the discharge air is collected. Thus collected air flows into an indoor suction port 34 from a suction communication port 27, passings through a prefilter 30, a high performance filter 31, and a blower 29 passing through a heat exchanger 28, where the air is heated or cooled down and is discharged outdoors from an indoor blowout port 22.

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, 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 performed by a heat exchanger 4 built into the main body of the fan coil unit 2. By passing cold and hot water and operating the blower 5, room 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 top side.

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 intake, and a third blower 10 provided to communicate with an exhaust port 9 provided through the outer wall 1, and the second blower 8 and the third blower 1o. During operation, indoor air is discharged from the indoor exhaust port 11 through the total heat exchanger 6 as shown by arrow A and then exhausted from the exhaust port 9, while the outside air is exhausted from the outside air intake lower as shown by arrow B. Ventilation was performed by sucking air into the room through the exchanger 6 and through the indoor air outlet 12, taking in outside air, and exhausting indoor air.This intake and exhaust recovered heat and ventilated 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
It is possible to recover the heat from the exhaust air while performing ventilation, but at night during the cooling season in summer, even though the outside temperature has dropped, the fan coil unit 2 is operated to cool the air. 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 order to avoid this, outside air can be cooled by introducing outside air into the room while operating the total heat exchanger 6, but the outside air is warmed by the total heat exchanger 6 and then enters the room. Also, since the total heat exchanger 6 is provided only for indoor ventilation and heat recovery, the ventilation air volume is too small to perform outside air cooling, and it is almost useless for outside air cooling. In addition, in the total heat exchanger 6, since the air flow path from the outside air intake lower to the indoor air outlet 12 and the air flow path leading to the indoor exhaust port 9 are open, noise from outside the building is transferred to the indoor side. The following problems were caused by dogs entering the room and noise in the room.

The present invention solves these problems by performing air conditioning and heating while recovering heat in the same way as in the past, and at the same time cools the room by bringing in outside air at dawn when the outside air temperature drops during the summer cooling season. Furthermore, it is an object of the present invention to provide a ventilation air conditioning unit configured to block outside noise.

Means for solving the problem In order to solve this problem, the present invention provides a chamber,
A main body is joined to the chamber and has a chamber suction port and a chamber exhaust port, and the main body is divided into an air conditioning room and a ventilation room by a partition plate having an air intake communication port,
In the air conditioned room, air is taken in through an outside air cooling intake port and an indoor air intake port, and an air flow path is formed through which air is blown out from an indoor air outlet. A damper is provided in the ventilation room to take in indoor air through an indoor exhaust port and an exhaust flow path to exhaust the air to the outside through an exhaust port, and an intake passage provided in the partition plate to take in outdoor air through the ventilation intake. 6 A-17 A total heat exchanger provided at the intersection of the exhaust flow path and the intake flow path; It is equipped with a ventilation damper that opens and closes the discharge port, and when the operation is stopped, each damper is closed, and when cooling the outside air, the operation of the ventilation blower is stopped, the ventilation damper is closed, and the indoor air intake is closed, and the outside air cooling intake is closed. This is a ventilation air conditioning unit that opens its mouth and operates a blower to take in air from the outside and blow it into the room in the air conditioned room.

With this configuration, when performing air conditioning, the damper on the outside air cooling intake side is closed and indoor air is taken in from the indoor air intake.
The air is conditioned by an air flow path that passes through an air filter, a blower, a heat exchanger, and is blown out from an indoor air outlet. When performing outdoor air cooling, the damper on the indoor air intake side is closed and the outside air is passed through the outdoor air cooling inlet. Air is taken in, passed through a blower, passed through a heat exchanger, and then blown out from an indoor air outlet to cool the outside air.On the other hand, when performing ventilation at the same time as the air conditioning, ventilation is used to blow indoor air from the indoor air outlet using a fan. The air is taken in, passed through a total heat exchanger by the exhaust fan 7 of the ventilation blower, and then exhausted from the exhaust port.
The outside air is taken in through the ventilation intake port, and the air in the exhaust flow path is recovered as heat is taken in through the total heat exchanger by the intake fan of the ventilation blower and into the room immediately after the indoor intake port from the intake communication port.

EXAMPLE An example of the present invention will be described below with reference to FIGS. 1 to 6. In FIG. 2, the outer wall 16 has a chamber 1
7 are installed so that they fit together, and a main body 18 of the ventilation air conditioner is connected to and installed in this chamber 17. The chamber 17 is provided with a chamber suction port 19 and a chamber exhaust port 20, and both are partitioned by a sixth partition plate 21. An indoor air outlet 22 is provided on the top surface of the main body 18.

Next, in FIG. 1, the main body 18 is shown in a front view and will be described. Inside the main body 18, an air conditioning room 23 and a ventilation room 24 are partitioned by a partition plate 26, and the partition plate 25 has an intake communication port 27 opened as an intake passage for intake of outside air.
and. 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 superimposed on the pre-filter 3o. A filter 31 is provided. Below these air filters 31 are outside air cooling intake ports 32 that are introduced when cooling outside air.
A first damper 33 is configured to open and close while facing the outside air cooling intake port 32, and a first damper 33 is configured to open and close while facing an indoor intake port 34 (FIG. 4) which is provided on the indoor side and is located symmetrically to the outside air cooling intake port 32. As shown in FIG.
An air flow path A extending from the outside air cooling intake port 32 to the indoor air outlet 22 through the heat exchanger 28 is formed.

On the other hand, on the ventilation room 24 side, a ventilation blower 37 is provided above, which is composed of a motor 36, an intake fan 36a and an exhaust fan seb fixed on both shafts of the motor 36, and has two discharge ports 38 and 39. .39 is provided with a ventilation damper 40.41 on both wings to connect the outlet 38.39.
When ventilation is stopped, the ventilation dampers 40 and 41 are closed to prevent outside air from entering. A known total heat exchanger 42 is provided below the ventilation chamber 24, with a second partition plate 43°, a third partition plate 44. Fourth partition plate 45. A sixth partition plate 46 is provided so as to be in contact with each edge of the rectangular parallelepiped total heat exchanger 42, and a ventilation damper 40 is provided on the fifth partition plate 46.
．． 41 is provided through the shaft. And indoor exhaust port 2
6 and the total heat exchanger 42 to the energized exhaust port 49, that is, an exhaust flow path (arrow B) that exhausts the air to the outdoors, and an exhaust flow path (arrow B) that takes in air from the ventilation intake port 48 and connects it to the total heat exchanger 42 through the partition plate. An intake flow path (arrow C) is formed through which air is taken into the air conditioning chamber 23 through the intake communication ports 27 of 26. The blower 3
The ventilation inlet 48 on the side 7 introduces outside air through the inside of the chamber 17, and the total heat exchanger 4
The exhaust port 49 on the second side is designed to exhaust indoor air. Note that the opening 6o of the chamber 17 shown in FIG.
corresponds to the air cooling inlet 32 of the main body 18, and the opening 51 corresponds to the ventilation inlet 48 of the main body 18.

In the above configuration, when performing cooling/heating ventilation in which cold water or hot water is passed through the heat exchanger 28 in the air conditioning room 28 and ventilation is performed, the first damper 33 on the air conditioning room 28 side as shown in FIG. is closed, the second damper 35'f is opened, and the ventilation dampers 40, 41 in the ventilation chamber 24 are opened (FIG. 1). When the blower 29 in the air conditioned room 23 is operated, the indoor air intake 34 is opened as shown by arrow A.
(Fig. 4) Indoor air flows in from the pre-filter 30.
The purified air passes through the high-performance air filter 31, passes through the blower 29, passes through the heat exchanger 28, and then enters the indoor air outlet 2.
The air is blown into the room from 2 and cools and heats the room as shown in the air flow path shown by arrow A. On the other hand, the exhaust gas in ventilation is arrow B in Figure 1.
As shown in the air flow path shown in FIG. 2, the indoor air flowing in from the indoor exhaust port 26 is caused to flow through the total heat exchanger 42 via the discharge port 39 by the exhaust fan 36b of the ventilation blower 37, and then from the exhaust port 49 through the chamber exhaust port 15 to the upper side. Insertion chamber 11
, an exhaust flow path is formed to exhaust the air outdoors from the exhaust port 20, and the intake air flows from the chamber intake port 19 to the opening 61 and from the ventilation intake port 48 to the ventilation blower 37 as shown by arrow C (FIG. 4). The air flows through the total heat exchanger 42 from the discharge port 38 by the intake fan 36a, where the heat of the exhaust air is recovered, and then flows through the air intake communication port 27 immediately after the indoor air intake port 34, into the pre-filter 30, high-performance filter 31. The blower 29 passes through the energizing heat exchanger 28, is cooled or heated here, and forms an intake flow path through which the 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 in the air conditioned room 23.

Next, when cooling is possible with outside air, such as at night in the summer or in the middle of the season, the ventilation dampers 40 and 41 are closed, and the second damper 35 of the air-conditioned room 23 is closed, as shown by the arrow in Figure 4. When the first damper 33 is opened and the blower 29 is operated, the opening portion 50 is opened from the chamber intake port 19. As shown by arrow E (FIG. 5), the outside air is blown out from the outside air cooling intake port 32, through the blower 29, through the heat exchanger 28 (cooled/hot water flow is stopped), and then from the indoor outlet 22 to cool the outside air inside the room.

Next, when only ventilation is performed, the first damper 33 of the air conditioned room 23 is closed, the second damper 35 is closed, and the ventilation damper 40.41 of the ventilation room 24 is opened to exchange heat in the case of cooling/heating ventilation as described above. Stop the water flow to the container 28, and turn off the ventilation blower 3.
By operating the fan 7 and the blower 29 on the air conditioned room side, only ventilation is performed.

Also, when the operation is stopped, the first damper 33° and the second
Damper 36. All ventilation dampers 40 and 41 are closed.

Effects of the Invention As is clear from the description of the embodiments described above, the present invention has an air flow path that performs cooling and heating while circulating the air in the animal room by opening the second damper and the ventilation damper during cooling and heating, and an air intake through the total heat exchanger. Only the exhaust passage, the intake passage, and the first damper are opened, and the heat is recovered while the air is being exhausted, and the heat-recovered air is cooled or heated again and blown into the room. When it is possible to use outside air for cooling, the outside air is taken in from the outside air cooling inlet and the outside air is sent into the room.Since the structure is equipped with an air flow path for outside air cooling, cooling can be performed using outside air during the summer and mid-season. In this case, an economical cooling effect can be obtained by outside air cooling operation without passing cold water, and a cooling effect can be obtained due to a large air volume compared to conventional ventilation cooling performed through a total heat exchanger. In addition, the air that flows through the intake flow path and exhaust flow path and recovers heat through a total heat exchanger during intake is recooled or reheated in the heat exchanger and blown into the room, so heat recovery is not performed as in the conventional method. However, outside air directly enters the
The air is blown out at a high temperature during cooling and at a low temperature during heating, and is sufficiently cooled and heated without causing any discomfort. Furthermore, by sending the heat-recovered outside air to the front of the pre-filter 9 high-performance filter, dirty outside air is also purified and blown into the room.

4 A-7 Furthermore, when the operation is stopped, the operating range of the first damper and the second damper is short, and the airtightness of each damper is also ensured. By closing each damper, it is sealed from the outside. This has the effect of reducing the transmission of outside noise to the indoor side and preventing outside air from entering due to outside wind pressure.

[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 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 the same. FIG. 5 is a cross-sectional view of an air-conditioned room of the air-conditioning ventilation unit, FIG. 5 is a perspective view of a chamber connected to the air-conditioning ventilation unit, and FIG. 6 is a plan configuration diagram of a conventional ventilation device and air conditioner. 16...Outer wall, 17...Chamber,
18...Body, 19...Chamber suction port, 15.20...Chamber ventilation port, 22
...Indoor air outlet, 23...Air conditioned room, 2
4...Ventilation room, 26...Partition plate, 26
...Indoor exhaust port, 27...Intake communication port, 2815. ...Heat exchanger, 29...Blower, 31
... Air filter, 32 ... Outside air cooling intake port, 33 ... First damper, 37 ...
...Ventilation blower, 38.39...Discharge port,
40.41...Ventilation damper, 42...
・Total heat exchanger, 48...Ventilation intake port, 49...
····exhaust port. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 3
Figure 5 Figure 1J Figure 6

Claims (1)

[Claims] Consisting of a chamber and a main body connected to the chamber and having a chamber suction port and a chamber exhaust port,
This main body is divided into an air conditioning room and a ventilation room by a partition plate having an air intake communication port, and an air flow path is formed in the air conditioning room, in which air is taken in from the outside air cooling intake port and the indoor air intake port, and air is blown out from the indoor air outlet. In addition, a blower, a heat exchanger, and a damper for opening and closing the outside air cooling intake port and the indoor intake port are provided, and the ventilation chamber includes an exhaust flow path that takes in indoor air from the indoor exhaust port and exhausts it to the outdoors from the exhaust port. an intake flow path through which outdoor air is taken in through a ventilation intake port and air is taken in immediately after the indoor air intake port through an intake communication port provided in the partition plate; a ventilation blower; and an intersection between the exhaust flow path and the intake flow path. a total heat exchanger installed in the ventilation blower, and a ventilation damper that opens and closes the outlet of the ventilation blower, and each damper is closed when the operation is stopped;
When cooling outside air, stop the operation of the ventilation blower, close the ventilation damper, close the indoor air intake, open the outside air cooling air intake, operate the blower, and let the air conditioned room take in the outside air and blow it into the room. A ventilation air conditioning unit configured to close the room.