JPH0335586B2 - - Google Patents

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Field of Application) The present invention relates to a ventilation air conditioning system, and in particular to one that can reduce the amount of material by reducing the number of various ducts required for ventilation and air conditioning. Regarding.

(Prior Art) For example, in a nuclear power plant, in order to maintain the environment necessary for the normal operation of various equipment in the plant, and to provide an appropriate working environment for operators and employees, Ventilation and air conditioning equipment is installed. This ventilation air conditioning system has a configuration in which air supply ducts and exhaust ducts are routed to each target area.

Therefore, the configuration of a conventional ventilation air conditioner will be explained with reference to FIG. A passage 2 is formed within the reactor building 1, and a plurality of rooms 3 are also formed. A main air supply duct 4 is disposed at a corner of the passage 2 so as to vertically penetrate the reactor building 1 . This main air supply duct 4 connects to the air supply duct 5.
The air supply ducts 5 are arranged along the passage 2. Above air supply duct 5
From there, air supply ducts 6 are further branched into each room 3, and these air supply ducts 6 are connected to the walls 3 of each room 3.
It is disposed in the room 3 by penetrating through a.

On the other hand, an exhaust duct 7 is provided outside each room 3, and the suction port 8 of this exhaust duct 7 is connected to the outside of each room 3.
It is open to

According to the above configuration, clean air is supplied into each room 3 through the main air supply duct 4 and air supply ducts 5 and 6, while dirty air in each room 3 is supplied through the suction port 8 and the exhaust duct 7. Exhausted through.

According to the above configuration, there are the following problems.

First, each room 3, which has traditionally been subject to ventilation,
The air supply ducts 5 and 6 are arranged up to the point where the number of rooms 3 to be ventilated increases, and the amount of air supply ducts required increases, resulting in cost and space savings. There was also a problem.

Next, there was the problem of interference between various ducts and other equipment, making adjustment difficult.

(Problems to be Solved by the Invention) As described above, in the conventional configuration, there are problems such as an increase in the amount of material and interference with other equipment, and the present invention has been made based on the above points. The purpose is to provide a ventilation air conditioning system that can reduce the amount of material and prevent interference with other equipment without impairing the necessary ventilation and air conditioning functions.

[Structure of the Invention] (Means for Solving the Problems) That is, the ventilation air conditioner according to the present invention provides a ventilation air conditioner for use in a building including a plurality of areas to be ventilated and passages formed around the plurality of areas to be ventilated. an air supply duct equipped with an air supply port opening to the ventilation area; a transfer duct that connects the inside and outside of the area to be ventilated and introduces clean air supplied from the air supply port into the passageway into the area to be ventilated; The present invention is characterized by comprising a suction port directed into each ventilation area and an exhaust duct for exhausting air from each ventilation area.

(Function) In other words, clean air is supplied from the air supply duct into the passage through the air supply port. The clean air supplied into the passageway is introduced into the ventilation areas via transfer ducts that connect the inside and outside of each ventilation area. On the other hand, exhaust air within each ventilation target area is carried out by an exhaust duct via an exhaust port. With this configuration, it is possible to eliminate the need for branch air supply ducts that were conventionally installed to each ventilation area, thereby reducing the amount of material and eliminating concerns about interference with other equipment. will also be resolved.

(Embodiment) An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. A passage 102 is formed in the building 101, and a plurality of rooms 103 are further arranged as areas to be ventilated. Above passage 10
An air supply duct 104 is arranged in the vertical direction at the corner of No. 2. This air supply duct 104 has an air supply port 105, and this air supply port 105 is connected to the passage 102.
It is open inward. Although the figure shows the configuration of only one floor, each floor has an air supply port 105 open therein. Further, as shown in FIG. 2, two air supply ports 105 are open in this embodiment. The position of the air supply port 105 is determined so that the air velocity flowing through the passage 102 is the maximum in any passage, and specifically, the position of the air supply port 105 is determined so that the air velocity flowing through the passage 102 is the maximum in any passage. place.

On the other hand, a transfer duct 106 is provided through the wall of each room 103, and clean air supplied from the air supply port 105 into the passage 102 is introduced into each room 103 through the transfer duct 106. On the other hand, a suction port 107 on the exhaust side is opened in each room 103, and this suction port 107 and the exhaust duct 1
It is exhausted through 08. Note that the suction port is located at a relatively high location, whereas the air supply port 105 is located at a relatively low location.

The transfer duct 106 prevents temperature unevenness and stagnation within each room 103, and provides the same conditions as when a conventional branch air supply duct is provided. First, regarding the blowout velocity into each room 103, it is assumed that the diameter of the outlet is calculated from the supply air volume to provide the same blowout velocity as in the past. Next, the air volume is adjusted by first setting the differential pressure between the passage 102 and each room 103. After maintaining this differential pressure, the air volume is adjusted. Specifically, this is done by installing an air volume adjustment damper in at least one of the transfer duct 106 and the exhaust duct 108, and adjusting the opening degree of this air volume adjustment damper.

The operation will be explained based on the above configuration. First, the passage 1 is passed through the air supply duct 104 and the air supply port 105.
Clean air is supplied into the 02. On the other hand, each room 1
Since the inside of 03 is exhausted through the exhaust duct 108 and the suction port 107, each room 103 and passage 1
02, a constant pressure difference is formed between the two. Therefore, the clean air supplied into the passage 102 is transferred to each room 10 via the transfer duct 106 due to this differential pressure.
It will be introduced in 3. In this case, each transfer duct 10
Since the diameter of the air outlet 6 is set so that the blowing speed is a predetermined value, clean air is introduced into each room 103 at a predetermined blowing speed. The air volume is also optimized by adjusting the opening degree of each air volume adjustment damper.

According to this embodiment, the following effects can be achieved.

First, since the branch air supply duct that was conventionally provided up to each room 103 is no longer necessary, the amount of material can be reduced. Thereby, cost reduction can be achieved.

Next, the internal air supply duct 5 of the conventional air supply ducts 5 and 6
Since this is no longer necessary, there is no need to worry about interference between the air supply duct and various equipment, making duct installation easier and making it possible to use space more effectively.

Next, since the air supply duct 104 and its intake port 105 according to this embodiment are installed at a location farthest from the room 103 where the required air volume is the largest, the required air flow velocity and air volume can be provided no matter where in the passageway 102 the air supply duct 104 and its intake port 105 are installed. can do. Temporarily, room 1 with the maximum required air volume
If the air supply port 105 is located close to the air supply port 103, a large amount of air supplied from the air supply port 105 into the passage 102 will be introduced into the room 103, and the air will be separated from the air supply port 105. A situation may arise in which the passage 102 is no longer able to provide the necessary flow rate.

Further, since the diameter of the air outlet of the transfer duct 106 is determined to provide a predetermined blowing speed, the blowing speed in each room 103 can be maintained at a predetermined value, and the temperature inside the room 103 can be maintained at a predetermined value. It is extremely effective in eliminating unevenness. Furthermore, passage 10
2 is used as an air flow path, so the passage 10
The environmental improvement in step 2 is also effectively achieved.

[Effects of the Invention] As detailed above, according to the ventilation air conditioner according to the present invention, it is possible to reduce the amount of air supply ducts and reduce the amount of material, and also to make effective use of space. The effect is great.

[Brief explanation of the drawing]

1 and 2 are diagrams showing one embodiment of the present invention, and FIG. 1 is a perspective view showing the configuration of a ventilation air conditioner;
Figure 2 is a plan view showing the configuration of the ventilation air conditioning system;
The figure is a perspective view showing the configuration of a conventional ventilation air conditioner. 101... Building, 102... Passage, 103...
Room, 104...Air supply duct, 105...Air supply port, 106...Transfer duct, 107...Suction port,
108...Exhaust duct.

Claims (1)

[Scope of Claims] 1. An air supply duct equipped with an air supply port opening into the passage of a building having a plurality of ventilation target areas and a passage formed around the plurality of ventilation target areas;
Each ventilation unit is equipped with a transfer duct that connects the inside and outside of the ventilation target area and introduces clean air supplied into the passage from the air supply opening into the ventilation target area, and a suction port directed into each of the ventilation target areas. A ventilation air conditioning system characterized by comprising an exhaust duct that exhausts air from a target area. 2. The ventilation air conditioner according to claim 1, wherein the air supply port is installed at a location farthest from the area to be ventilated where the required air volume is maximum. 3. The ventilation air conditioner according to claim 1, wherein the diameter of the air outlet of the transfer duct is determined so that the air blowing speed into the area to be ventilated becomes a preset value. 4. The ventilation air conditioner according to claim 1, wherein at least one of the transfer duct and the exhaust duct is equipped with an air volume adjustment damper.