JPS5819007B2 - Outside air intake air conditioning method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an air conditioning method that takes in outside air, and more particularly to an outside air air conditioning method that uses a mixing, humidifying, and cooling device.

Conventional outside air intake air conditioning methods include mixing, humidifying, cooling,
An air conditioner combined with a reheating device handles the entire amount of circulating air at once.

FIG. 1 is a psychrometric diagram showing an air conditioning process based on such a conventional outside air intake air conditioning method.

Generally, the amount of outside air required is 10 to 30% of the total circulating air amount, so it is shown here as about 20%.

In FIG. 1, l-2-3-4-5-D shows the air conditioning process in winter.

That is, in the mixing cycle, 100% of the amount of circulating air in the air conditioned room air 1 is mixed with outside air 2 to obtain mixed air 3, and in the humidification cycle, mixed air 3 is humidified to obtain humidified air 4. In the cooling cycle, humidified air 4 is cooled and cooled air 5 is obtained.
In the reheat cycle, the cooling air 5 is reheated to obtain the final target air condition.

In each cycle, the entire amount of circulating air is processed.

Here it is.

Further, in FIG. 1, l-28-38-5-D indicates the air conditioning process in summer.

In the mixing cycle, 1 of the circulating air amount of air conditioned room air 1
00% and outside air 2S to obtain mixed air 3S, and in the cooling cycle, the mixed air 3S is cooled to obtain cooling air 5, and in the reheating cycle, the cooling air is 5 is reheated to obtain the required air condition.

Here, in each cycle, the entire amount of circulating air is processed, similar to the case in the winter season.

Here it is.

However, in such conventional outside air intake air conditioning methods, the total amount of circulating air is reduced to 3-4-5-D or 3S-
5-D, it requires a large amount of energy, and there is also a waste of energy as the air that has been cooled in the cooling cycle is reheated in the reheating cycle. The disadvantage is that it also requires the installation of equipment.

The present invention was developed in order to eliminate the above-mentioned drawbacks of the conventional method, and aims to provide an outside air intake air conditioning method that uses a small amount of energy and can omit a heating device.

In the outside air intake air conditioning method according to the present invention, only a part of the amount of circulating air is air-conditioned in the first step, and the entire amount of circulating air is air-conditioned in the second step, thereby eliminating the reheat cycle. This is what I did.

Embodiments of the outside air intake air conditioning method according to the present invention will be described with reference to the drawings.

FIG. 2 is a psychrometric diagram showing the air conditioning process based on the outside air intake air conditioning method according to the present invention, in which conditioned indoor air 1 and outside air 2, 2S in the same state as in FIG. 1 are air conditioned. This shows the process by which a predetermined air condition is finally obtained.

Explain the air conditioning process during winter.

In the first stage of this air conditioning process, 50% of the circulating air volume is air-conditioned, and in the mixing cycle, 50% of the circulating air volume of the air conditioned indoor air 1 and the outside air 2 are mixed to produce mixed air 6. In the humidification cycle, the mixed air 6 is humidified to produce humidified air 7, and in the cooling cycle, the humidified air 7 is cooled to become cooling air 8.

Here it is.

Next, in the second stage, 100% of the circulating air volume is air-conditioned, and in the mixing cycle, the remaining 50% of the circulating air volume of the air-conditioned indoor air 1 is mixed with the above-mentioned cooling air 8 and recycled. Mixed air 9 is created and remixed air 9 is cooled in the cooling cycle to the final target air condition.

Next, the air conditioning process in summer will be explained.

Even in this case, 50% of the circulating air volume is adjusted in the first stage of the air conditioning process, and in the mixing cycle, 50% of the circulating air volume of the conditioned indoor air 1 and the outside air 2S are mixed. The mixed air becomes 6S,
In the cooling cycle, the mixed air 6S is cooled to become cooling air 8.

Here It is.

The cooling air 8 is supplied to the second
In the step, the remaining amount of circulating air of the air conditioned indoor air 1 is
% to form remixed air 9, which is further cooled in a cooling cycle to obtain the final target air condition.

According to the above embodiment, the humidification cycle W7 is shorter than the humidification cycle 34 in the conventional example, and the processing air volume is halved, so that the amount of humidification water can be reduced.

Further, the cooling cycle 7j is shorter than the cooling cycle n in the conventional example, and the processing air volume is halved, so that the required cooling energy is reduced.

Also, the cooling process 9D is shorter than the heating cycle 5D in the prior art and therefore requires less energy.

Furthermore, since there is no heating cycle 5D in the above embodiment, there is no need to equip the air conditioner with a heating device.

In the above embodiment, a case has been described in which indoor air and outside air are mixed in the first stage of air conditioning, but it goes without saying that this air conditioning may be a cycle in which only outside air is mixed.

As described above, the outside air intake air conditioning method according to the present invention provides the first
Since only a part of the amount of circulating air is air-conditioned in the first step, and the entire amount of circulating air is air-conditioned in the second step, the energy required for air conditioning can be reduced.

[Brief explanation of the drawing]

FIG. 1 is a psychrometric diagram showing an air conditioning process based on a conventional outside air intake air conditioning method, and FIG. 2 is a psychrometric diagram showing an embodiment of the air conditioning process of the outside air intake air conditioning method according to the present invention.

Claims (1)

[Claims] 1. In the outside air intake air conditioning method, in winter, a part of the circulating air is mixed with the outside air, humidified and cooled, and then mixed with the remainder of the circulating air for cooling. However, in the summer, an outside air intake air conditioning method is characterized in that a part of the circulating air is mixed with the outside air for cooling, and then this is mixed with the remainder of the circulating air for cooling.