JPS6060437A - Air heat source air conditioning equipment - Google Patents

Abstract

PURPOSE:To make a heat pump type air conditioner utilizing air as heat source install at a position apart from building wall and at the same time contrive to reduce the energy required to take in the fresh air for heat source. CONSTITUTION:Both the upper end 4 and lower end 5 of a vertical duct 2 installed at the central portion of a building 1 have openings open to the outside air equipped with an upper damper 6 and a lower damper 7 respectively. Similarly, the upper end 8 and lower end 9 of a vertical duct 3 have openings open to the outside air equipped with an upper damper 10 and a lower damper 11. The vertical ducts 2 and 3 constituted as mentioned above are vertically installed in the building 1 so as to pierce through the respective stories and heat pump type air conditioners 15 are arranged within the room at each story in the vicinity of both the vertical ducts 2 and 3. Because the apparatuses of each air conditioner 15 are arranged so that the outside air for heat source flows itself horizontally and changes the heat with an outdoor side heat exchanger 19 and, in addition, the fresh-air inlet 21 and exhaust outlet 22 of each air conditioner 15 are so arranged as to produce said horizontal flow, each air conditioner 15 can be installed in a room apart from the outside wall.

Description

[Detailed Description of the Invention] The present invention enables an air-source heat pump type air conditioner to be installed in a location away from a building wall (for example, in the center of a room) and reduces the energy required to take in outside air for the heat source. Concerning air heat source air closing IIJ construction.

Conventionally, when air conditioning is performed using an air source heat pump type air conditioner, it has been most common to install an outdoor unit including an outdoor heat exchanger outdoors. In this case, it will harm the appearance of the building.

This is especially a problem with building air conditioning systems. For this reason.

An air source heat pump type air conditioner that houses outdoor equipment and indoor equipment in a single casing is installed near an indoor wall, and outside air is taken in to the outdoor equipment and exhausted through a through hole in the outside wall. A wall-penetrating air heat source heat pump type air conditioner has been proposed. However, in this case, the air conditioner is generally installed indoors near a wall, and it is virtually impossible to install it in the center of the room away from the wall. In other words, even if an air-source heat pump type air conditioner is installed in the center of the room, it is often impossible to install a duct to process the outside air for the heat source and the exhaust air. In response to this, it was common practice to direct the conditioned air to the center of the room using a duct or the like and blow it out.

The present invention provides an air heat source air conditioning system that allows an air heat source heat pump type air conditioner to be installed in the center of a room, and that allows outside air for the heat source to be effectively taken in by effectively utilizing the flow of exhaust air. This paper proposes a new air conditioning method that is especially useful when air conditioning buildings using an air heat source method. In other words, the air heat source air conditioning equipment of the present invention has 1! Two vertical ducts are installed adjacent to each other inside the building, and an air source heat pump type air conditioner with outdoor equipment and indoor equipment housed in one casing is installed indoors near both the ducts. Connect the outside air intake of the air conditioner to one vertical duct, and connect the exhaust port of the air conditioner to the other vertical duct.
The upper and lower ends of both vertical ducts are opened to the outside air via opening/closing dampers, and communication ports are provided at the upper and lower portions of the two vertical ducts to communicate the two vertical ducts, and a means for opening and closing the communication ports is provided. That is.

The details of the air heat source air conditioning equipment of the present invention will be explained below with reference to the drawings.

Figures 1 and 2 show an example of applying the present invention to building air conditioning. Both figures have the same configuration, but Figure 1 shows the state during cooling, and Figure 2 shows the state during cooling. Shows the state during heating. In the equipment of the present invention, vertical ducts 2 and 3 are first installed adjacent to each other in the center of a building 1. In the illustrated example, there are nine vertical ducts.

As shown in the cross-sectional view of Fig. 4, which will be described later, they are placed next to each other and extend upward and downward for 12 J&, and the vertical duct 2 is used for taking in outside air, and the vertical duct 3 is used for exhausting air. . The upper and lower ends of both vertical ducts are open to the outside air via dampers, and the upper and lower ends of both vertical ducts can be communicated with each other as necessary. To be more specific, the upper end 4 and lower end 5 of 1 vertical duct 2
Each of these openings 11 is open to the outside air, and an upper damper 6 and a lower damper 7 are installed to block or open air circulation between these openings and the inside of the vertical duct 2. . Similarly, the upper end 8 and lower end 9 of the vertical duct 3 are also open to the outside air, and this vertical duct 3 is also provided with an upper damper 10 and a lower damper 11. An upper communication port 12 is provided at the top of both vertical ducts 2 and 3 that are adjacent to each other, and a lower communication port 13 is provided at the bottom of each of the vertical ducts 2 and 3. The valve is installed.

In the equipment of the present invention, the vertical ducts 2 and 3 having such a configuration are installed vertically inside the building 1 (at a location away from the outer wall) penetrating each floor, and are installed on each floor near the one-car vertical ducts 2 and 3. An air heat source heat pump type air conditioner 15 is arranged indoors.

The air conditioner 15 is an air source heat pump type air conditioner in which an outdoor device and an indoor device are housed in one casing, as shown in FIGS. 3 and 4. In other words, the inside of the casing is divided into an indoor side and an outdoor side by the partition plates 16 inside the 5 units, and the indoor side heat exchanger 17 and indoor blower 18 are installed, and the outdoor side is connected to the outdoor heat exchanger 19 and the like. The outdoor air blower IJ, 1120, etc. are arranged so that one side is an evaporator and the other is a condenser between the indoor heat exchanger 17 and the outdoor heat exchanger 19, or vice versa. ,
A heat pump is configured with refrigerant piping. Outside air for the heat source is taken into the outdoor side of the room, and after passing through the outdoor heat exchanger 19, it is exhausted to the outside air, and then the air is returned to the room (j, !l).
4. : Indoor return air is taken in to the indoor heat exchanger 17.
After reaching the desired temperature, air is supplied into the room. The arrows in Figures 3 and 4 indicate this air flow. The feature of this air heat source heat pump type air conditioner 15 is that the equipment is arranged so that the outside air for the heat source introduced to the outdoor side flows laterally inside 131 and exchanges heat with the outdoor side heat exchanger 1 (3). At the same time, the outside air intake 21 is opened so that such a flow is formed.
The reason is that an exhaust port 22 is provided. In the illustrated example, the outside air intake port 21 and the exhaust port 22 are mounted on the back surface of the casing at the same height and spaced from each other at a distance J, but one or both of them may be provided on the side surface of the casing. In any case, in the two-piece air conditioner 15, the outside air intake port 21 and the exhaust port 22 are connected to ducts 23 and 24. and a duct 23 connected to the second outside air intake 21
is connected to the vertical duct 2G, and the exhaust duct 24 connected to the exhaust 122 is connected to the vertical duct 3.

According to the equipment of the present invention configured as described above, it is possible to effectively take in outside air using the airflow of the exhaust gas. First, let me explain about the case of cooling operation. Figure 1 shows the flow of air during this cooling operation with arrows. In this case, the upper dampers 6 and 10 of the two-car vertical duct are opened, the lower dampers 7 and 11 are closed, and the upper communication port is closed. Close 12 and leave lower communication port 3 open. As a result, the upper part 1''4 of the vertical duct 2 becomes the collective outside air intake, and the vertical duct 1-3
The upper R11 opening 8 functions as a collective exhaust port. As mentioned above, the exhaust gas from each air conditioner 5 is blown into the vertical duct 3 through the duct 24 (Fig. 4), but during cooling operation, this exhaust gas is at a higher temperature than the ambient temperature, so there is a difference in specific gravity. occurs, and an upward air current is generated within this vertical dant 3. This upward airflow generates a negative pressure below the vertical duct 3, and the air in the adjacent vertical duct 2 flows into the tJI vertical duct 3 through the opened lower communication port 13.

In other words, the upward flow of 1J1 qi causes a downward induced flow to occur in the adjacent vertical duct 2. In addition to this,
In each air conditioner 15, each outside air intake duct 23 (fourth
Since the air in the vertical duct 2 is actively drawn from the vertical duct 1 to the vertical duct 2, fresh outside air continuously flows into the vertical duct 2 from the upper opening 4 of the vertical duct 2.

That is, during cooling operation, fresh outside air flows downward into the vertical duct 2 one after another due to the negative pressure caused by the upward flow of exhaust gas and the outside air attracted to the air conditioner 15. As a result, the coefficient of performance of the air conditioner 15 can be increased because air, which is desirable as outside air for a heat source, is continuously supplied to the air conditioner. In addition, if the upper opening 4 of the vertical duct 2 is opened in the direction of the wind.

It is even more advantageous that fresh outside air can easily enter the vertical duct 2 due to the wind pressure. A fletching blade 26 that rotates in the wind direction is attached to this, and a mechanism is installed in the upper opening 4 of the vertical duct 2 to form an opening facing the wind direction following the rotation of the fletching feather 26. Just leave it at 1.

On the other hand, during heating operation in winter, the upper dampers 6 and 10 of the one-car vertical duct are closed, the lower dampers 7 and 11 are opened, and the upper communication port 12 is opened to communicate with the lower part. Keep mouth 13 closed. This causes the lower opening 5 of the vertical duct 2 to function as a collective outside air intake, and the lower opening 9 of the vertical duct 3 to function as a collective exhaust port. During heating operation, the exhaust gas from each air conditioner 15 is at a lower temperature than the ambient temperature.

A descending air current is generated in the vertical duct 3 from which the exhaust gas is discharged due to the temperature difference. Negative pressure is generated above this vertical duct 3, and the air in the adjacent vertical duct 2 enters into this vertical duct 3 through the upper communication port 12. That is, in the adjacent vertical duct 2, an induced flow is generated upward from the opening 5 due to the negative pressure caused by this exhaust flow.

Therefore, in the same way as during cooling, fresh outside air is successively drawn into the vertical duct 2 for taking in outside air, making it possible to operate the air conditioner efficiently.

As explained above, according to the present invention, the problem that conventional air source heat pump type air conditioners could not be installed indoors away from the outer wall has been eliminated, and it has become possible to install them in the center of the room. At the same time, the retained heat of the exhaust air can be used to effectively draw in outside air during both cooling and heating operations, making it possible to use forced ventilation especially for air-source heat pump type air conditioners installed in the center of the room. At the very least, air is naturally and efficiently supplied, enabling energy-saving operation with a high coefficient of performance, and is especially useful as an air heat source air conditioning system for buildings.

[Brief explanation of the drawing]

Fig. 1 is an equipment layout system diagram showing the mode of the air conditioning equipment of the present invention during cooling operation, Fig. 2 is an equipment arrangement system diagram showing the mode of the air conditioning equipment of the invention during heating operation, and Fig. 3 is the equipment arrangement system diagram of the present invention. A schematic vertical cross-sectional view showing an example of the air conditioner of the equipment ('Nj condition),
FIG. 4 is a plan view showing an example of how the air conditioner of the equipment of the present invention is installed. 1. Building, 2. Vertical duct (for outside air intake)
, 3. Vertical duct (for exhaust). 4 and 8...upper opening, 5 and 9...lower opening, 6
and IO...upper damper, 7 and 1...lower damper, 12...'' two-part communication port. 13...Lower communication port, 15...Air heat source heat pump air conditioner, 23...Outside air intake 1~. 24...Exhaust Dan I. Applicant Nippon Pimanc Co., Ltd.

Claims (1)

[Claims] Two vertical ducts are installed adjacent to each other inside a building. An air source heat pump type air conditioner that houses outdoor equipment and indoor equipment in one casing is installed indoors near both of the vertical ducts, and the outside air intake of the air conditioner is connected to one of the vertical ducts. Then, connect the exhaust port of the air conditioner to the other vertical duct. An air heat source in which the upper and lower ends of both vertical ducts are opened to the outside air via opening/closing dampers, and communication ports are provided at the top and bottom of one vertical duct to communicate both vertical ducts, and a means for opening and closing the communication ports is provided. Air conditioning equipment.