JPS6325464Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a temperature pulsating air conditioning system in which the temperature of air from an outlet changes periodically.

[Prior Art] An air conditioning system converts air taken in from outside a building into conditioned air with an appropriate temperature and humidity using an air conditioner, and sends the appropriate air into each room through ducts.

However, since this type of air conditioning system consumes a considerable amount of electricity, various attempts have been made over the past few years to save energy. Part 1
As one example, a temperature pulsating air conditioning system is known in which a conditioned air duct and an outside air duct are provided separately or are branched in the middle, and a damper is installed in each duct. By switching each damper, outside air, a mixture of conditioned air and outside air, and conditioned air are alternately discharged from the outlet, and even if the air volume is constant, the temperature changes periodically within a certain range. It is an air conditioning system.

On the other hand, when comparing air at a constant temperature with air whose temperature changes, it is known that even if the average temperature of the latter is the same as that of the former, humans experience different sensations.
For example, in the case of a cooling system, there is a fact that the most comfortable temperature for air that changes in temperature is slightly higher than the sensible temperature for low-temperature air. In other words, if the supplied air is of a temperature pulsating type, the desired cooling effect can be obtained with less energy.

However, in a temperature pulsating type air conditioning system, each duct requires a switching damper, and both dampers must be operated in conjunction with each other, resulting in problems such as increased production costs and increased complexity of the air conditioning system.

Although it is possible to incorporate a temperature pulsation damper into the air conditioner itself, this has the disadvantage that the air conditioner has to be specially manufactured and conventional air conditioning systems cannot be applied to it.

[Purpose of the invention] The present invention has been made in view of the above circumstances, and its purpose is to provide a temperature pulsating air conditioning system that has a simple structure and can be used with a conventional air conditioner.

[Summary of the invention] In order to achieve the above object, the invention installs a distribution device that generates temperature pulsating air at the ends of the conditioned air duct and the outside air duct, and connects the duct from the distribution device to the outlet. A double duct is created by partitioning the duct in a direction almost perpendicular to the partitioning direction of the duct, and multiple rotatable dampers are installed in the distribution device to alternately switch each air flow path of the double duct to produce and supply air with pulsating temperatures. It is designed to do so.

[Embodiment of the invention] FIG. 1 shows an embodiment of the cooling system according to the invention. The cold air duct 10 has one end facing the outside of the building and serving as an air inlet 12, an air conditioner 14 and a blower 16 provided in the middle, and the other end connected to a distribution device 18.

The air conditioner 14 is equipped with an air purifying filter 20 and a heat exchanger 22, and some types include an internal blower. Although a cooling/heating coil is normally used as the heat exchanger 22, various types such as a heat pump have recently been used. The blower 16 functions to send cold air from the heat exchanger 22 in the direction of the arrow.

On the other hand, the outside air duct 24 is the cold air duct 10.
Similarly, one end of the duct faces the outside of the building and serves as an air inlet 26, and the other end is connected to the distribution device 18, but only a blower 28 is provided inside the duct, creating a dedicated path for outside air. It consists of

From the distribution device 18 two further ducts 30,3
2 extends, and each duct 30, 32 runs along the ceiling (not shown) of the building, and is provided with a plurality of air outlets 34, 36 on the lower surface.

The connection state of each duct near the distribution device 18 is
As shown in the figure. As can be seen from this figure, the cold air duct 10 and the outside air duct 24 are separated by a partition wall 38, forming a double duct. In Figure 1,
Air inlets 12 and 26 of both ducts 10 and 24
Although the duct is provided separately, it is also possible to have one air inlet and branch it into two ducts with a partition plate in the middle.

The ducts 30, 32 coming out of the distribution device 18 are branched again, but both ducts 30, 32 are connected to the partition wall 38 of the cold air ducts 10, 24, as shown in FIG.
The partition means for the duct, which is partitioned in a direction substantially perpendicular to the duct, may be formed by providing a partition wall in one duct or by fixing two ducts together.

As shown in FIGS. 3 and 4, the distribution device 18 includes a casing 40 provided between the cold air ducts 10 and 24 and the ducts 30 and 32;
a plurality of dampers 42 rotatably mounted within the
44, 46, and 48. Damper 42,4
As shown in FIG. 4, the blades 4 are shaped like thin plates and are fixed to the shaft 50 so as to be perpendicular to each other. In addition, the dampers 46 and 48 are also connected to the shaft 5.
It is fixed to 2.

The shafts 50 and 52 are rotatably supported by the casing 40 and are arranged in parallel. Furthermore, arms 54 and 56 are provided at the ends of each shaft 50 and 52, and both arms 54 and 56 are connected to each other by a link 58. Also, casing 4
0, an air cylinder 62 is attached via a pin 60 so as to be pivotable about its rear end, and a rod 64 of the air cylinder 62 is connected to one arm 54. Therefore, the rod 64 of the air cylinder 62
By expanding and contracting, both shafts 50, 52 and dampers 42, 44, 46, 48 are rotated by a predetermined angle in conjunction with each other.

The operation order of the dispensing device 18 configured in this manner is as follows. In the drawings, solid line arrows indicate the flow of cold air, dotted lines indicate the flow of outside air, and FIGS. 2, 4, and 5 are perspective views seen from the same direction.

In FIG. 4, the damper 42 is closed, so the cold air is sent to the duct 30 through the damper 46 side. On the other hand, the passage to the duct 32 is connected to the damper 4.
4 is open and the damper 48 is closed, so only outside air is sent. Next, when the air cylinder 62 is actuated and the rod 64 is retracted, the arms 54 and 56 are both rotated approximately 90 degrees clockwise in the drawing to the state shown in FIG. The positions of each damper are damper 42 open, damper 44 closed, damper 46
is closed, and the damper 48 is opened, which is completely opposite to that shown in FIG. Therefore, the duct 32 has cold air,
Outside air is supplied to the duct 30.

Each damper 42, 44, 46, 48 periodically repeats the positions shown in FIGS. 4 and 5 and rotates back and forth, thereby causing air to be discharged from the outlets 34 and 36 (FIG. As shown in FIGS. 6A and 6B, even if the air volume is constant, the temperature changes periodically between the cold air temperature t ₁ and the outside air temperature t ₂ . In Figure 6B, the solid line is duct 30.
The dotted line indicates the duct 32 side. In FIG. 1, the arrows indicating the exhaust from the outlets 34 and 36 are waved to represent this temperature pulsation effect.

Switching of the air cylinder 62 is performed by an internal solenoid valve (not shown), and the solenoid valve is operated by a signal sent from a predetermined control device. In addition to the air cylinder, a hydraulic cylinder, a deceleration motor, etc. can be used as a driving source for the damper.

In the case of a heating system, warm air is supplied from the air conditioner 14, and only the damper 46 of the distribution device 18 is rotated by 90 degrees in FIG.
There is no need to make any changes to the air conditioning system itself, just by sending weak air evenly through the air.

[Effects of the invention] As described above, in the present invention, the conditioned air duct and the outside air duct are partitioned in a direction substantially perpendicular to the partition between the two ducts to form a double duct, and a plurality of rotatable dampers are installed in the distribution device. Since each air flow path of the double duct can be switched alternately by providing the double duct, suitable temperature pulsating air can be supplied using a conventional air conditioner. In addition, since it is the rotation of the damper that opens and closes the air flow path, rotational inertia acts when switching between opening and closing of the air flow path, so opening and closing is done quickly.Moreover, the damper rotates gradually, so air is spread over the entire surface of the damper. It is possible to reduce the collision noise that occurs when a sudden collision occurs, and the air flowing into the air flow path can flow into the duct without being disturbed.
Moreover, since the pressure loss of the air is small, the power of the blower that sends the air can be reduced.

[Brief explanation of the drawing]

Figure 1 is a simplified diagram showing a cooling system to which the present invention is applied, Figure 2 is a perspective view showing how each duct is connected, Figure 3 is a side view of the distribution device, and Figures 4 and 5 are distribution A simplified perspective view showing the operating state of the device, FIG. 6A is a graph showing the relationship between temperature pulsating air time and air volume, and FIG. 6B is a graph showing the relationship between temperature pulsating air time and temperature. 10...Cold air duct, 14...Air conditioner, 1
6, 28...Blower, 24...Outside air duct, 3
4, 36...Air outlet, 42, 44, 46, 48
...Damper, 62...Air cylinder.

Claims (1)

[Scope of utility model registration request] A duct for conditioned air, a duct for unconditioned air,
An air conditioner and a blower provided in a part of the conditioned air duct, a blower provided in a part of the unconditioned air duct, and a distribution device that creates temperature pulsating air installed at the ends of both the ducts. In a temperature pulsating air conditioning system having a duct that guides temperature pulsating air from a distribution device to an outlet, the duct exiting from the distribution device is arranged in a direction substantially perpendicular to the partitioning direction of a duct for conditioned air and a duct for unconditioned air. 1. A temperature pulsating air conditioning system, characterized in that the distribution device is provided with a plurality of rotatable dampers that alternately connect and disconnect each air flow passage.