JPS60174445A - Dehumidifying air conditioner - Google Patents

Abstract

PURPOSE:To prevent the lowering in cooling ability of the titled conditioner by producing regenerated air to the chamber through a dehumidifier and reproduced air due to a dehumidifying material by directly mixing indoor air and outdoor air with each other, in the titled air conditioner. CONSTITUTION:Indoor air and outdoor air are mixed with each other by a damper 6 on the processing side, and are introduced into the room through a dehumidifier 1, a sensible heat exchanger 2, and a humidifier 3. Further, on the regeneration side, the indoor air and outdoor air are mixed by a damper 7, and are exhausted to the outside of the room by the dehumidifier through the humidifier 4, the sensible heat exchanger 2 and the humidifier 5. Thus, by varying the mixing ratio of air by the dampers 6 and 7, it is made possible to easily change the function of the device to the sides of the circulation mode and the ventilation mode.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a rotary dehumidifier, a sensible heat exchanger, a heater, and a 2ili! This relates to the front of an open type dehumidifying air conditioner equipped with an iI humidifier.

[Prior art]

In this type of open-type dehumidifying air conditioner, the treated air that passes through the rotary dehumidifier and is sent into the room for air conditioning and the regenerated air that regenerates the dehumidifying material in the dehumidifier are separated and flow opposite each other. This air conditioning system has a circulation mode shown in FIG. 1 and a ventilation mode shown in FIG. 3.

Here, (1) is a rotary dehumidifier containing a dehumidifying material such as Licl, (2) is a recirculating sensible heat exchanger, (3) is a processing air side humidifier, and (4) is recycled air. Side humidifier, (5) heating W
'fr.

First, in the circulation mode, the treated air for air conditioning and the regenerated air flow as shown by the arrows in Figure 1, and the states of each air shown in Figure 1 are as shown in the psychrometric diagram. Each form in Figure 2 corresponds to books ■ to ■.

Then, the treated air is guided from the room to the dehumidifier a(1), where it is dehumidified and becomes low-temperature, low-humidity air.
It is cooled by the sensible heat exchanger (2) to become low-humidity, low-temperature air, and further humidified and cooled by the humidifier (3) before being returned indoors. On the other hand, is the recycled outside air humidified? After being humidified and cooled in #4), the head is heated to a high temperature by the exchanger (2) and the heater (5), and the dehumidifier is regenerated and discharged in the dehumidifier (1). Here, the treated air and the regenerated air are flowed opposite each other in one residual humidifier ( ), and the dehumidification process and the regenerated air are continuous in one residual humidifier (υ). It is done as follows.

Regarding this circulation mode, details can also be found in the document ``About the trial production of Taiyo 7 L-Using Tencant air conditioner using rotary heat exchanger'' by Daisushiko Furuki J (vOL, 9NO, 5). It is said that there are eight.

In addition, in the case of ventilation mode, the treated air and the regenerated air each flow as shown by the arrows in Figure 3, and the states of each air shown in the same figure correspond to the states in the psychrometric diagram of Figure 4, ■
corresponds to each.

The treated outside air is first passed through the dehumidifier (1): it is threaded into high-temperature, low-humidity air, and then passed through the sensible heat exchanger (1).
The air is cooled in step 2) to become low-temperature, low-humidity air, and further cooled with humidity in the door humidifier 13) before being sent into the room.On the other hand, the regenerated air from the room is humidified and cooled in humidifier In (4). Thereafter, the air is heated up by the head heat exchanger (2) and the heater (5) and becomes high-temperature air, which is then discharged after regenerating the dehumidifier in the dehumidifier (1).

In addition, in order to reduce the pressure loss in the previous J-jo 1 residual humidity air conditioner blue, the dehumidifier (1) and the air conditioner (2) are equipped with a honeycomb that allows air to bend in a direction parallel to the rotation axis. It is structured in a groove-curved manner, and hot water and industrial hot waste water are used in the heat exchanger (5).

By the way, in the circulation mode and ventilation mode mentioned in i,
Coefficient of performance for outside air wet bulb temperature (cooling capacity/regeneration input)
Calculation examples of cooling capacity and cooling capacity are shown in Figures 7 and 8, respectively. According to these, in the case of ventilation mode,
While the coefficient of performance and cooling capacity are both superior to Ya mode in the region of low outside air wet bulb temperature, the performance deteriorates rapidly in the region of high outside air wet bulb temperature. That is, since the outside air is directly dehumidified at +ri in the ventilation mode, if the outside air humidity increases, a sufficiently low humidity cannot be obtained and the performance will deteriorate. Therefore, a sufficiently large dehumidifier is required to prevent this performance deterioration.

On the other hand, in the case of the circulation mode, the degree of performance deterioration is small even when the outside air wet bulb temperature rises, and when the outside air conditions are severe, the coefficient of performance and cooling level are higher than in other modes. However, in this circulation mode, as is clear from Figure 7, when the outside air wet bulb temperature is low, there is a heavy breath with a coefficient of performance that is inferior to other modes, and when the outside air humidity increases, the indoor air Although it is not greatly affected by humidity because there is residual moisture in contact with it, the heating/cooling of the outside air is insufficient due to the rise in outside air humidity ((because the temperature of the treated air after sensible heat exchange In addition, in this type of circulation mode, ventilation is required to circulate indoor air, which results in an increase in the cooling load.

By the way, heretofore, as this type of dehumidifying air conditioner, there is an open type air conditioner disclosed in Japanese Patent Publication No. 15290/1983. According to this, a total heat exchanger is provided across the outdoor air supply passage and the indoor air exhaust = i@, and in the total heat exchange tfr, heat is exchanged between the indoor exhaust air and the poet outside air from the outdoors. By ventilating the room without wasting the cooled indoor air, we aim to maximize cooling output.

However, in this case, the outside air of the poet and the indoor exhaust air are placed next to each other for total heat exchange, so on the indoor side of the room, the outside air of the poet is in almost the same state as the indoor exhaust air, and the outside air of the poet is in almost the same state as the indoor exhaust air. The mixture of indoor air and indoor air is also the same as indoor air, and on the outdoor regeneration side, indoor exhaust air is almost the same as outside air, and the mixture of indoor exhaust air and outside air is also the same as outside air. Therefore, the air conditioner can be functionally considered to be in a ventilation mode. Here, even if the mixing ratio of outside air and indoor air or the mixing ratio of indoor exhaust air and outside air is changed, (just changing the gust rate will have a significant effect on the coefficient of performance and cooling capacity. There isn't.

[Purpose of the invention]

This invention has been made in consideration of the above points.
The purpose is to prevent deterioration of the R factor and cooling capacity due to changes in outside air conditions, and to enable highly efficient dehumidifying and cooling operation that is optimal for the outside air conditions at the location where this type of device is installed.

[Structure of the invention]

This invention is a retractable dehumidifier containing a dehumidifying material.

A decoy heat exchanger is equipped with a humidifier, a heater, and two humidifiers, and the air is sent into the room for air conditioning through the residual humidity, fA heat exchanger, and one humidifier. and the other humidifier: - Exhaust the additional heat exchanger, heater, and 1 dehumidifier to the outside with a diameter of 1.i'IJ. A dehumidification system characterized in that indoor air and outdoor air are directly produced into treated air and regenerated air, respectively, in a residual humidity air conditioner in which air is allowed to flow facing each other while being isolated from each other. It is an air conditioner.

〔Effect of the invention〕

Therefore, by directly mixing indoor air and outdoor air using the dehumidifying air conditioner of the present invention to produce treated air and regenerated air, respectively, it is possible to obtain a mixing mode that is completely different from the conventional circulation mode and ventilation mode. This not only allows indoor ventilation, but also prevents deterioration of the coefficient of performance and cooling capacity due to outside air conditions, and improves performance. It is possible to realize driving.

[Fu example]

Next, this invention will be explained in detail with reference to the drawings from FIG. 5 showing one embodiment thereof.

Figure 5 shows an air conditioning system, which differs from the above in that it has a damper (6) for mixing air that directly mixes indoor air and outdoor air to produce treated air, and a damper (6) that directly mixes indoor air and outdoor air. A regenerated air mixing damper (7) is provided to directly mix the regenerated air to produce regenerated air, and each of the air states ■ to ■ shown in FIG. 5 corresponds to each state ■It corresponds to each. In addition, both dampers~+a), (7
) The mixing ratio of indoor air and outdoor air in K is variable;

Decide that the displacement will be equal to Balannu.

On the processing side, first, indoor air and outdoor air are mixed in a damper (6), which becomes processing air, which passes through a dehumidifier (1) to become high-temperature, low-humidity air, and a sensible heat exchanger ( By phantom sensible heat exchange, the air becomes low-temperature, low-humidity air, which is then humidified and cooled by a humidifier (+3) before being sent into the room.

In addition, on the regeneration side, indoor air and outdoor air are mixed by a damper (7) to become regeneration air, which is humidified and
k 1.4) and Calo/1. ii! As it is cooled,
Sensible heat exchange, r! 2! After being preheated in the tank (2), heating a(
It is heated in step 5) to become high l-crystalline air, which generates n-th heat from the first string damp material in Itozokan (1) and is discharged outdoors.

Here, I\\ which accommodated I', i C1 as one light wet shrine
When using a Nikum Inukai I animal type humidifier (1) and an aluminum honeycomb-shaped ML Sensible Heat Exchanger (2), the relationship between the outside air wet bulb temperature, coefficient of performance, and cooling capacity was determined respectively. 'h As shown by solid lines in FIGS. 7 and 8. At this time, I was stubborn (replacement car 83π1 air flow rate 2400nl/h,
Indoor conditions: 28°C, 60% H, germination temperature: 80°C, outside humidity: 70% RT (.

Humidity after rabbit humidity 90% I-I, damper +61, (
It is assumed that the mixing ratio l in 7) is 1.

Therefore, as is clear from FIGS. 7 and 8,
In the relatively high outside air wet bulb temperature range of 27°C to 30°C, the coefficient of performance is superior to the pond mode9, and even in the low outside air wet bulb temperature range, it is much improved compared to the circulation mode. In terms of cooling capacity, it was found to be higher than other modes in the region of outside air wet bulb temperature of 27°C to 28°C, and even in the region of relatively high outside air wet bulb flow rate, ventilation It is clear that the cooling capacity is improved compared to the mode, and the performance is improved by preventing deterioration of the coefficient of performance and cooling capacity due to changes in outside air conditions.

In addition, by varying the mixing ratio of indoor air and outdoor air in damper +6+ (7), the performance of the device can be easily changed to circulation mode or ventilation mode. By simply operating the damper, continuous air conditioning can be achieved that is optimal for the outside air conditions at the location where the nitrogen conditioning device is installed.

[Brief explanation of the drawing]

Figures 1 to 4 show the conventional dehumidifying air conditioner and the first
Figures 2 and 2 are a schematic diagram of the system in circulation mode and its psychrometric diagram, Figures 3 and 4 are a schematic diagram of the system in ventilation mode and its psychrometric diagram, and the drawings below Figure M5 are the dehumidifying air conditioner of the present invention. One embodiment of the device is shown,
Figure 5 is a diagram of Sinutem 1, Figure 6 is a psychrometric diagram, and Figure 7 is a psychrometric diagram.
The figure is a characteristic diagram of the coefficient of performance for outside air wet bulb/M degrees, and Figure 8 is a graph of the cooling capacity of 4 degrees above the outside air wet bulb temperature. (su... dehumidifier, (2)... egg heat exchanger, j3)
, (4)...humidifier, (5)...heater, 161
, (7)...damper. Agent Patent Attorney Fuji IB Kanta T! 1+ Fig. 1 Fig. 2 - L - Fig. 3 Fig. 4 U1hJL - Fig. 5 Fig. 6

Claims (1)

[Claims] ■ Rotary dehumidifier containing dehumidifying material, sensible heat exchanger, 9
The dehumidifier, the heat exchanger, the treated air sent into the room for air conditioning via the dehumidifier and the humidifier on one side, and the humidifier on the other side and the humidifier. Regeneration air that is exhausted to the outside through a heat exchanger, a heater, and a humidifier and heats and regenerates the dehumidifying material in the dehumidifier.
A dehumidifying air conditioner characterized in that indoor air and outdoor air are directly mixed to form treated air and regenerated air, respectively.