JP2002013759A - Desiccant air-conditioning method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a desiccant air-conditioning method to utilize hot water by the exhaust heat of a micro-generator (a generator). SOLUTION: The desiccant air-conditioning method comprises an introduction part having an intake fan to introduce outside air; an exhaust part having an exhaust part having an exhaust fan to return discharge indoor air and discharging it as regeneration outside air to the outside through an exhaust passage; a single or two heat exchange rotors having a function to dehumidify outside air introduced from the introduction part through an introduction passage and suck and regenerate return air from the chamber of an exhaust passage of an exhaust part; a vaporization type cooler to cool regeneration cold air fed from the interior of a chamber to a heat exchange rotor; a hot water coil to further heat return air regenerated by the heat exchange rotor of the exhaust passage; and a small fuel private power generator to supply a power to a power source for a cabin suction and exhaust fan and the heat exchange rotor. A boiler-less generator is constituted that temperature and humidity on the supply side to supply outside air dehumidified by the heat exchange rotor is supplied in a room are adjusted to a proper value and a low value and regeneration outside air containing the return air from the interior of a room is adjusted to a high temperature and middle humidity to the outside. Hot water utilizing an exhaust heat from the fuel private power generator is supplied to the hot water coil.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a desiccant air conditioning method with a private generator installed in a shopping center, a convenience store, or the like.

[0002]

2. Description of the Related Art In a shopping center, a supermarket, a convenience store, etc., there are many people coming and going, and the air conditioning in a room such as a sales floor consumes an enormous amount of electricity due to cooling in summer and heating in winter. In particular, an excessive amount of electricity and gas are consumed together with production facilities in many factories and the like, and therefore, consumption of oil and natural gas is also very large. In recent years, with the liberalization, free supply of electric power has become possible, and large-scale stores and factories have often installed private power generators.

[0003] In addition to the desiccant air conditioner used for indoor air conditioning, electric power is required for indoor lighting and a refrigerator, and a hot water boiler for supplying hot water to a hot water coil in the desiccant air conditioner is required. Therefore, the gas consumption for the hot water boiler of the desiccant air conditioner was large, and the thermal efficiency of the entire system was poor.

[0004]

The desiccant air-conditioning method is preferably and often used in terms of thermal efficiency where a large facility such as a shopping center is installed, but it consumes a large amount of electric power and fuel and increases the fuel cost. Had become.

The present invention has been made in view of the above-mentioned demands, and provides a desiccant air-conditioning method capable of operating with sufficient thermal efficiency throughout the four seasons. Energy can be saved without using a high-load cycle such as supercooling and reheating as in the prior art, and relatively medium-temperature hot water can be used as a heat source, and other showcase refrigerators and generators can be used. It is an object of the present invention to provide a desiccant air-conditioning method that functions as an apparatus for effectively using exhaust heat of a vehicle and can improve system efficiency.

It is another object of the present invention to provide a desiccant air conditioning method with a private power generator for a shopping center or the like. Another object of the present invention is to provide a desiccant air-conditioning method for reusing a heating fluid such as exhaust steam of an in-house power generator and exhaust heat hot water.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention provides an introduction section having an intake fan for introducing outside air, and regenerating outside air through an exhaust passage by returning indoor air. An exhaust unit having an exhaust fan that exhausts to the outside, and a function of dehumidifying outside air passing through the introduction passage introduced from the introduction unit and sucking and regenerating return air from the interior of the exhaust passage of the exhaust unit. One or two heat exchange rotors, an evaporative cooler that cools regeneration outside air supplied from the room to the heat exchange rotor, and further heats return air regenerated by the heat exchange rotor in an exhaust passage. An air supply side that includes a hot water coil, a small fuel private generator that supplies power to an intake / exhaust fan in the machine and a power source of the heat exchange rotor, and supplies outside air dehumidified by the heat exchange rotor to a room. Suitable temperature The regenerated outside air in the exhaust passage including the return air from the room is discharged to the outside at a high temperature and a middle humidity while being supplied to the room at a low humidity, and the hot water used for the exhaust heat from the fuel private power generator is discharged to the hot water. This is a desiccant air-conditioning method that supplies boilers to coils and scrapes them.

[0008] Further, the object is to provide an introduction portion for introducing outside air, an exhaust portion for returning indoor air and discharging the regenerated outside air to the outside via an exhaust passage, and an introduction passage introduced from the introduction portion. One or two heat exchange rotors for dehumidifying the outside air passing through and exhausting the return air from the room in the exhaust passage of the exhaust unit, and evaporating to cool the regeneration outside air supplied to the heat exchange rotor from the room A cooler and a hot water coil for further heating the regeneration outside air including the return air regenerated by the heat exchange rotor in the exhaust passage, and supply the outside air of the introduction part dehumidified by the heat exchange rotor to the room. Supply air to the room at an appropriate temperature and low humidity on the supply side, and regenerate the outside air from the room through the exhaust passage containing the return air to a high temperature.
In an air conditioner which discharges to the outside at a medium humidity, a heating coil for heating air introduced from a heat exchange rotor in winter or a heating medium of 30 to 150 degrees Celsius to be supplied to the hot water coil is provided and provided. This can be achieved by using a boilerless desiccant air-conditioning method using hot water that utilizes waste heat from cogeneration.

[0009] Further, the object is to provide an introduction section for introducing outside air, an exhaust section for returning indoor air and discharging the regenerated outside air to the outside through an exhaust passage, and an external section introduced from the introduction section. A dehumidifying rotor that dehumidifies and regenerates return air from the interior of the exhaust section, and sets the outside air of the introduction section dehumidified by the dehumidification rotor to an appropriate temperature on the air supply side, low humidity, and heats the regenerated outside air including return air from the room to a high temperature. A sensible heat exchange rotor having a function to make the humidity moderate, an evaporative cooler for cooling regeneration outside air including return air supplied from the room to the sensible heat exchange rotor,
In an air conditioner having a hot water coil for further heating the regenerated outside air regenerated by the sensible heat exchange rotor in an exhaust passage, a heating unit for heating the outside air supplied from the sensible heat exchange rotor into the room in the introduction unit Achieved by the desiccant air-conditioning method of supplying the regenerated outside air whose temperature has been increased by the coil and the sensible heat exchange rotor of the exhaust unit to hot water by exhaust heat in a micro cogeneration as a heat medium to be supplied to a hot water coil to be heated. it can.

In the desiccant air-conditioning method of the present invention, a self-powered fuel generator such as a micro-cogeneration is installed inside or outside the desiccant air-conditioner main body, and hot water of 30 to 150 degrees Celsius utilizing waste heat from the micro-cogeneration is heated. Since the heater is supplied to the coil or the heating coil to heat the heater, not only can the boiler be eliminated in the main body, but also
It can also be reused as a cooling medium for an external combustion device. The micro cogeneration having an output of about 30 Kw is compact and easy to use.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the desiccant air conditioning method of the present invention will be described in detail with reference to the drawings. Figure 1
1 is a schematic explanatory view showing one embodiment of a desiccant air conditioning method of the present invention. FIG. 2 is a schematic configuration diagram showing an embodiment of a desiccant air conditioner used in the desiccant air conditioning method of the present invention. FIG. 3 is an explanatory diagram showing an outline of another embodiment.

Since the desiccant air conditioner of the present invention does not require a hot water boiler unlike the prior art, it is possible to reduce power consumption and fuel gas consumption. The temperature condition and humidity of the air supply to the indoor side are controlled by the temperature and humidity sensors located in the indoor sales floor, etc., and the micro cogeneration system that supplies heat exchange rotors such as dehumidification rotors and sensible heat exchange rotors, coolers, and hot water coils. Since the operation of the hot water boiler using waste heat can be controlled relatively freely, it is possible to efficiently supply comfortable air with low humidity to the room throughout the four seasons.

An introduction passage I, which is an introduction portion, and a discharge passage E of a discharge portion for discharging regenerated outside air including return air from the room are partitioned by a partition wall S in a box having a box formed therein. I is provided with a louver 1 for an outside air inlet and a filter 2 for removing dust, and the outside air is sucked by an intake fan 10. The dehumidification rotor 3 and the sensible heat exchange rotor 4 are arranged so as to straddle both the introduction passage I and the discharge passage E. This heat exchange rotor may be one if necessary. Further, the introduction passage I
On the side, a heater 5 for heating is arranged, while the exhaust passage E
On the side, a filter 6 that allows return air from the room and outside air to pass,
An evaporative cooler 7, a heater 8 for heating the outside air for regeneration, and an exhaust fan 9 for exhaust are arranged. These heaters 5 and 8 may be single.

[0014] A hot water boiler 1 utilizing the exhaust heat of the micro cogeneration system 12 disposed close to the desiccant air conditioner.
A heating fluid heated to a predetermined temperature or higher exhausted from the micro cogeneration system 12, for example, a discharge gas such as a refrigerant gas, discharged hot water, or discharged steam is supplied to the hot water boiler 11 through the exhaust pipe 15. Is done. The hot water is connected so as to be supplied to the hot water coils of the heaters 5 and 8. The temperature of the hot water is preferably about 30 to 150 degrees.

The dehumidifying rotor 3 of the desiccant air conditioner removes the moisture of the outside air introduced from the looper 1 to reduce the humidity, and at the same time, exhausts the moisture adsorbed to the exhaust passage E side of the regeneration outside air to provide moisture. . The outside air on the introduction passage I side passes through the dehumidification rotor 3 to remove moisture and reduce the humidity. afterwards,
The sensible heat exchange rotor 4 is passed through the sensible heat exchange rotor 4. The sensible heat exchange rotor 4 lowers the temperature while maintaining the low humidity of the high temperature and low humidity outside air passing through the dehumidification rotor 3, and heats the regenerated outside air from the room. Has the function of raising the temperature to medium and high. Further, the hot water supplied to the heaters 5 and 8 is being heated by the hot water of the boiler 11 of the micro cogeneration system 12. The evaporative cooler 7 is an evaporative cooler that performs cooling using the latent heat of tap water. The filter 6 and the filter 2 are for removing dust introduced from the outside air and dust supplied to the room.

With the above configuration, as shown in FIG. 2, the outside air in the state is introduced into the box of the desiccant air conditioner from the louver 1 which is the inlet, and is dust-removed by the filter 2, and then the dehumidifying rotor 3 is moved by the intake fan 10. Introduction passage I
Introduced on the side. The outside air that has passed through the dehumidifying rotor 3 is introduced into one side of the sensible heat exchange rotor 4, subjected to sensible heat load processing, and supplied into the room through the outlet 15 and the back side of the showcase from the bottom 16. Is done.

The return air used in the room is sucked through the return port 17, passes through the filter 6 as outside air for regeneration, is cooled by the evaporative cooler 7, and becomes a state.
The sensible heat exchange rotor 4 is introduced into one regeneration outside air side and is subjected to sensible heat load processing to be in a state. Here, it is heated by the hot water coil of the heater 8 to be in a state, is introduced to the other side of the dehumidification rotor 3 on the regeneration outside air side, and is exhausted to the outside through the louver 13.

FIG. 1 shows the states shown in FIG. 1 in the above air conditioning cycle. The following figures of temperature and humidity are one example, and the present invention is not limited to these figures. That is, the outside air is at a temperature of 30 ° C. and a humidity of 60%
(16 g / kg) through the louver 1. When this outside air passes through the dehumidification rotor 3, it is in a state of a high temperature and a low humidity of 5% (5 g / kg) at a temperature of 62 ° C. Next, this outside air is subjected to sensible heat load processing by the sensible heat exchange rotor 4, and is supplied to a room at a temperature of 25 ° C. and a suitable temperature and humidity of 20% humidity.

The air taken into the room is exhausted and returned while circulating in the room at a temperature of 27 ° C. and a humidity of about 40%. This return air is taken into the exhaust passage E, becomes return air at a temperature of 21 ° C. and a humidity of about 50% in the evaporative cooler 7, and is introduced into the sensible heat exchange rotor 4. Here, sensible heat load processing is performed, and the temperature is 58 ° C. and the humidity is 10%. The heater 8 is heated, and the temperature is 90 ° C. and the humidity is 5%. Next, it is introduced into the dehumidifying rotor 3 and the temperature 4
At 8 ° C., the humidity is about 60%, and the air is exhausted from the louver 13 to the outside of the box. Note that the space between the states corresponds to the cooling capacity of the present apparatus, and the space between the states is the heat input effect. As described above, the outside air having a temperature of 30 ° C. and a high humidity of 60% is supplied to the room side as a supply of a temperature of 25 ° C. and a humidity of 20%. Further, regeneration outside air including return air from the room is also processed and exhausted in the same device.

The configuration of the desiccant air-conditioning method of the present invention is not limited to the above-described one. In the embodiment, two heat exchange rotors, a dehumidification rotor and a sensible heat exchange rotor, are used. A sufficient effect can be exhibited by the exchange rotor.

[0021]

According to the desiccant air conditioning method of the present invention,
The hot water boiler can be omitted, and the amount of electricity generated by the micro cogeneration can be used not only for the desiccant air conditioning main body but also for the surplus electric power. In addition, since cooling is performed after dehumidification, the humidity can be controlled smoothly and labor can be saved, and comfortable humidity control can be performed throughout the four seasons. In addition, since the cycle is not a conventional supercooling-reheating cycle, the load is reduced and energy can be saved. The whole is compactly stored in the box body, and compactness can be achieved.

[Brief description of the drawings]

FIG. 1 is a schematic explanatory view showing one embodiment of a desiccant air conditioning method of the present invention.

FIG. 2 is a schematic configuration diagram showing an embodiment of a desiccant air conditioner used in the desiccant air conditioning method of the present invention.

FIG. 3 is an explanatory diagram showing an outline of another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Louver 2 Filter 3 Dehumidification rotor 4 Sensible heat exchange rotor 5 Heater 6 Filter (for regeneration outside air) 7 Evaporative cooler 8 Heater 9 Exhaust fan 10 Intake fan 11 Boiler 12 Micro cogeneration 13 Looper

Claims (3)

[Claims] 1. An introduction section having an intake fan for introducing outside air, an exhaust section having an exhaust fan for returning indoor air and exhausting it as regeneration outside air via an exhaust passage to the outside, and the introduction section. One or two heat exchange rotors having a function of dehumidifying the outside air passing through the introduction passage introduced from the exhaust passage and sucking and regenerating the return air from the room in the exhaust passage of the exhaust part; An evaporative cooler that cools the regenerative outside air supplied from the heat exchanger, a hot water coil that further heats the return air regenerated by the heat exchange rotor in the exhaust passage, and a power of the intake / exhaust fan and the heat exchange rotor in the machine A small-sized fuel self-generator for supplying power to the power source, and supplying the outside air dehumidified by the heat exchange rotor to the room at an appropriate temperature and low humidity on the air supply side for supplying the room to the room, and supplying the outside air from the room. A desiccant air conditioner characterized in that boilerless boilerless air conditioning is provided in which the regenerated outside air in the exhaust passage containing air is heated to high temperature and medium humidity and discharged to the outside, and hot water utilizing the exhaust heat from the fuel self-generator is supplied to the hot water coil. Method. 2. An introduction section for introducing outside air, an exhaust section for returning indoor air and exhausting it as regeneration outside air through an exhaust passage, and an outside air passing through an introduction passage introduced from the introduction section. One or two heat exchange rotors that dehumidify and suck and return the return air from the room in the exhaust passage of the exhaust unit, and an evaporative cooler that cools the regeneration outside air supplied to the heat exchange rotor from the room A hot water coil that further heats the regenerated outside air including the return air regenerated by the heat exchange rotor in the exhaust passage, and a supply side that supplies the outside air of the introduction unit dehumidified by the heat exchange rotor to the room. Moderate temperature,
An air conditioner that supplies air to a room with low humidity and regenerates outside air from an exhaust passage including the return air from the room to high temperature and medium humidity and discharges the air to the outside. A heating system that heats air introduced from a heat exchange rotor in winter. 30-1 degrees Celsius to be supplied to the coil or the hot water coil
A desiccant air-conditioning method, characterized in that a heat medium of 50 degrees uses boiler-less hot water utilizing waste heat from a micro-cogeneration provided additionally. 3. An introduction section for introducing outside air, an exhaust section for returning indoor air and discharging the regenerated outside air to the outside via an exhaust passage, and dehumidifying and exhausting the outside air introduced from the introduction section. A dehumidifying rotor that regenerates the return air from the interior of the room, and the outside air of the introduction section dehumidified by the dehumidification rotor is adjusted to the appropriate temperature and low humidity on the supply side, and the regenerated outside air including the return air from the room is adjusted to the high temperature and medium humidity. Sensible heat exchange rotor having the function of performing the following steps: an evaporative cooler that cools regeneration outside air including return air supplied from the room to the sensible heat exchange rotor; and regeneration outside air regenerated by the sensible heat exchange rotor in an exhaust passage And a hot water coil for further heating the heating unit, wherein a heating coil for heating the outside air supplied into the room from the sensible heat exchange rotor in the introduction unit and the sensible heat exchange rotor for the exhaust unit are provided. A desiccant air-conditioning method, characterized in that the regenerated outside air whose temperature has been raised is further supplied with hot water by exhaust heat in a micro cogeneration as a heat medium to be supplied to a hot water coil to be heated.