WO2022097757A1

WO2022097757A1 - Air-conditioning or cooling device using hybrid cooling

Info

Publication number: WO2022097757A1
Application number: PCT/JP2021/042346
Authority: WO
Inventors: 健兒梅津
Original assignee: 株式会社Ｇｆ技研
Priority date: 2020-11-05
Filing date: 2021-11-04
Publication date: 2022-05-12
Also published as: JPWO2022097757A1

Abstract

Among air conditioning technologies, the indirect water evaporation-type cooling system, which directly cools indoor air with outdoor air by using the evaporative latent heat of water, is effective at reducing power consumption. However, there has been the problem that the cooling performance of this system is affected by the humidity in the air, and cooling performance drops under high humidity conditions. In order to solve this problem, a hybrid system combining an electric heat pump device is effective, but a simple combination would increase power consumption. The present proposal gives a solution for such a problem.

Description

Cooling or cooling device by hybrid cooling

The device that cools the indoor air with the outdoor air is called a heat pump air conditioner and uses a refrigerant. An air conditioner in which this refrigerant is compressed by a compressor and the high-temperature refrigerant is cooled by outdoor or indoor air has been realized and is widely used worldwide. However, this method consumes a large amount of power from the compressor, and when the power is generated, the exhaust gas of the generator or the leaked gas of the refrigerant is one of the causes of global warming. It is thought that the spread of air conditioners will increase worldwide in the future, and there is a possibility that it will have a more adverse effect on global warming than the exhaust gas of cars, so it can be said that it has a big problem on a global scale.
On the other hand, the so-called fin tube heat exchanger, which is a heat exchanger between the refrigerant and air used in the above-mentioned heat pump air conditioner, is designed to achieve extremely high performance, reliability, and compactness, and can be mass-produced. Since the method has been established, reduction of the compression power applied to the refrigerant compressor, that is, reduction of power consumption has been promoted, but now it has reached the limit. Moreover, the spread of air conditioners is constantly increasing, and the increase in greenhouse gas emissions is unstoppable.
On the other hand, when cooling with a heat pump air conditioner, in order to obtain even a little higher energy efficiency and cooling effect, it is possible to use a lower wet-bulb temperature instead of cooling by the dry-bulb temperature of the cooling air (outdoor air). It is widely known that it is effective. For this reason, it is effective to continuously sprinkle water on the outdoor air to be cooled to lower the dry-bulb temperature to near the wet-bulb temperature and use it as a cooling source.

On the other hand, the air-to-air heat exchanger used for cooling and cooling by the water evaporation utilization cooling method, which is a further advanced method, that is, the water evaporation indirect cooling heat exchanger IDEC (Indirect Evaporative Cooler) is a refrigerant circulation type cooling device. It has hardly been realized in the product field of air conditioners and air conditioners. The reason is that the performance comparable to that of the refrigerant compression type air conditioner has not been obtained, but it is also because the excellent design and manufacturing method have not been realized, and sufficient marketing is not done and the product concept is insufficient. Therefore, the final products such as air cooling devices, cooling devices, and heating devices are not ensured in size, low cost, sufficient performance, and reliability, and are not mass-produced. it is conceivable that.
Therefore, here, we propose a method and technique for realizing a new type air conditioner with excellent characteristics by using the water evaporation indirect cooling heat exchanger IDEC, which is an air-to-air heat exchanger.
Patent Document 1 presents a technique for realizing a cooling / dehumidifying system utilizing the latent heat of vaporization of water.
According to the summary, it is equipped with an indirect vaporization cooling device (referred to as a water evaporation indirect cooling heat exchanger in this proposal) and a desiccant humidity control device to realize a cooling and dehumidifying system with high cooling capacity and dehumidifying capacity. Presenting new technology.
1. Cooled air is passed through the wet channel to form a wet film by attaching a water retaining agent to the heat transfer surface in order to utilize the wet-bulb temperature, and the cooled air (treated air) passes through the dry channel through the heat transfer surface. ) Is cooling.
2. In order to enhance the cooling effect, cooling air and non-cooling air are flowed in a countercurrent flow.
3. By taking out a part of the air at the outlet of the cooled air flowing through the dry channel and flowing it to the wet channel in the direction opposite to the dry channel, the processed air of the dry channel is separated by this part of the air. Cool more efficiently.
The above three techniques are extremely effective techniques for cooling the treated air.
However, if the cooling effect is obtained only by the latent heat of vaporization of water, a sufficient temperature drop can be obtained, which is unpleasant. Especially when the humidity of the cooling side air is high (rainy weather, etc.), the cooling effect can be obtained only about 1 to 2 ° C. not.
Therefore, Patent Document 2 presents a technique for further enhancing the cooling effect. Using a thin aluminum heat transfer plate, it is molded into a corrugated plate shape, and many improvement items are presented, such as making the two air flows countercurrent. However, although some improvement can be expected with this alone, a sufficient effect cannot be expected.

Japanese Patent Application Laid-Open No. 2015-190633 Japanese Patent Application Laid-Open No. 2018-211043

Water evaporation Indirect cooling heat exchanger: A power refrigeration cycle device that uses a refrigerant based on a cooling device that uses an air-to-air heat exchanger called IDEC, and a dehumidifying device that uses a desiccant unit that uses a heat source such as a solar heat source. It is to clarify the method and technology to use the above in combination with the hybrid.
The purpose of solving the problem is as follows: 1) While sufficiently improving the cooling performance, 2) Reducing the amount of electric power energy used, 3) Significantly reducing the amount of refrigerant used, and 4) Improving the air quality of the treatment space.

Here, as the means for cooling and cooling the indoor air, the optimum combination method will be examined as a means based on the following three types of cooling principles in consideration of the commercial value of the cooling device.
Means 1, heat pump method ———— The cooling method using a device called a heat pump, which is used in ordinary air conditioners, is to compress the refrigerant and send the refrigerant discharged at a high temperature to the fin tube condenser outdoors. Air is blown to cool and the refrigerant in the tube is liquefied. The liquid refrigerant is expanded to become a low-temperature liquid refrigerant and sent to a fin tube cooler to cool and dehumidify the indoor air flowing outside, and the liquid refrigerant evaporates to gas and returns to the compressor. The advantage of this method is that it is easy to obtain a stable drive power supply anywhere and anytime. On the other hand, the problems of this method are that it consumes a large amount of power and that it uses a fluorocarbon refrigerant whose use is about to be regulated internationally. The main reason for the large power consumption is that the outdoor air temperature reaches 35 ° C. in the summer, so that the condensation pressure increases and the compression power of the compressor increases.
Means 2, method using water evaporation indirect cooling type heat exchanger ... Here, the main method adopted and proposed is cooling by water evaporation indirect cooling type heat exchanger and a command chamber device. More than 100 thin aluminum plates are laminated with a certain gap, and the outdoor air and indoor air are flowed independently in each gap so that they do not mix, and heat is exchanged between them. When tap water is sprayed, both air are cooled by the heat of vaporization of tap water and flow out. At this time, the indoor air is cooled without being humidified, that is, it is cooled. On the other hand, the outdoor air is humidified and cooled. Therefore, if the cooling heat of both the indoor air and the outdoor air to be cooled can be used together, the cooling effect will be doubled. The advantage of this method is that when cooling, only the blower power is used, the power consumption is low, and the energy efficiency is high. The problem is that the cooling capacity is reduced when the humidity of the treated air, especially the outdoor air, is high.
Means 3, method by dehumidification with desiccant member ———— The third means for cooling and cooling is cooling with a water evaporation indirect cooling heat exchanger using desiccant member, before processing with a command chamber device. It is a method to enhance the cooling and cooling effect by adsorbing and dehumidifying the moisture of the indoor air. Therefore, it is necessary to first remove (dehumidify) the moisture from the member by using outdoor air heated to about 60 ° C. as a pretreatment.
The structure of the desiccant member is such that a hygroscopic material made of silica gel, zeolite, polymer resin, etc., which has hygroscopic properties, is supported on the surface and inside, and is molded in a wavy shape with the paper or resin sheet flat plate that is the base material. A cardboard sheet is formed by laminating a molded plate that has been (processed) or a triangular shape continuously molded into a cardboard shape with a space for air passage inside, and then stacking a large number of them inside. In the method using a cube (decicant box) with an air passage space, the air enthalpy is lowered by dehumidifying the air, and the air is cooled and cooled in combination with the above two methods. Is.
The advantages of this method are that it can reduce the amount of power consumed by using heat without using power, and that the hot water storage tank required for storing heat such as solar heat in hot water is not required, and the desiccant box itself is a heat storage layer. The required volume can be reduced compared to the hot water tank method that uses the sensible heat of water to store heat by using the latent heat of water, and the energy stored by heat leaks that occur in hot water storage tanks, etc. There is a point that loss can be reduced, and there is an advantage that it is advantageous to store heat (dehumidification) in the daytime with solar heat and use this heat for cooling in the evening. The problem is that it is necessary to provide a means of supplying thermal energy, such as electric power, whose supply infrastructure is not sufficient.
So far, we have explained the means and methods that utilize the three principles that contribute to air cooling and cooling, but each method has its own drawbacks, and the favorite of cooling and cooling methods that people and society will use in the future. It cannot be the method of.
In the present invention, a technique and an invention for making the most suitable means and methods for energy performance, economy, and commerciality by utilizing these methods in combination are presented.
The technique described in claim 1 is a technique for cooling the air to be cooled to a lower temperature by combining means 1, a heat pump method and means 2, and a method using a water evaporation indirect cooling heat exchanger. The air to be cooled is cooled to near the wet bulb temperature of the cooling air with almost no power consumption by the means 2, but when the wet bulb temperature is high due to rainy weather or the like, the cooled air is only about 1 to 2 ° C. It may not be cooled. Therefore, when the heat pump of the means 2 is used for additional cooling, the cooling effect can be sufficiently obtained, but the power consumption of the heat pump, that is, the power consumption of the compressor is added, and the water evaporation cooling type heat exchanger of the main means can be used. The power reduction effect is lost. Therefore, claim 1 is a technique of using the cooling side air cooled by the water evaporation cooling type heat exchanger as the cooling air of the find tube refrigerant condensed radiator which is the condenser of the heat pump. According to the demonstration experiment, the electric power required for the compressor to compress the refrigerant is reduced to about 40% compared to using the air on the cooling side as it is, and the cooling capacity of the heat pump is reduced to 130%. To increase. As a result, the efficiency of the heat pump is 1.3 / 0.4 = 3.2 times, and as a result, the power consumption is 1 / 3.2 = 0.31, which is reduced to about 30%.
According to claim 2, the air to be cooled is first cooled by a water evaporation indirect cooling type heat exchanger, and further cooled by a fin tube refrigerant evaporation cooler as described in claim 1, and at the same time, from the cooled air. Dehumidify. This air is heated and reheated by the upstream find tube refrigerant condensed radiator provided separately from the find tube refrigerant condensed radiator described above in the heat pump, and as a result, the cooled air is output without being excessively cooled. Since it is output mainly in a dehumidified state, the dry operation effect usually referred to can be obtained.
Claim 3 is a technique for further improving the efficiency and cooling performance of the method according to claim 1 by a simple method. In general, it is known that the cooling efficiency of a heat pump is significantly improved by sprinkling water on the heat radiation fin portion on the outer surface of the fin tube condenser which is a heat sink. A method in which a water tank and a pump for sprinkling water on a water evaporation indirect cooling type heat exchanger are installed in claim 1, and the cooling performance of the heat pump can be easily improved by sprinkling the water on a fin tube condenser. Is proposed as a new technology.
The technique of claim 4 is used by dividing a part of the cooled air after cooling and returning it as cooling air, and when the air volume of about 30% is returned, the cooling air is output. It is known that the temperature can be reduced by about 1.0 ° C. At the same time as producing the effect of lowering the outlet temperature of the output air, the returned 30% of the air is also the ventilation air from the room to the outside. If the indoor air cooled by the normal cooling operation is ventilated by the above effect, the outdoor air having a higher temperature will enter the room in terms of balance. It has the effect of recovering about 50% of the heat loss (called ventilation energy loss) due to ventilation.
According to claim 1, at the outlet of the water evaporation indirect cooling type heat exchanger, both the cooling air and the cooled air are cooled by the heat of vaporization of water and discharged. The technique of claim 5 is an idea of blowing both output airs into different spaces and using them for cooling and cooling of both spaces. It is a technology that blows out the air on the cooling side to the office room inside the factory and the humidified and cooled air on the cooling side to the factory space outside the office to help cool and cool both spaces.
The technique of claim 6 is to stop sprinkling and operate the heat pump when the temperature of the space where there is a heat generating source in the space and the air to be cooled is blown out is higher than the temperature of the air to be cooled. It is a technology that cools and cools the space cooled by the water evaporation indirect cooling type heat exchanger without sprinkling water only by stopping and blowing air. Of course, the main purpose is to save energy. Typical examples are factory spaces with a lot of internal heat generation and office spaces in the evening when the outside air is cold.
A seventh aspect of the present invention is a technique for heating in the cooling / cooling device according to the first aspect. Normally, when heating is performed in a heat pump, the flow of the refrigerant discharged from the compressor is changed by operating a switching valve (called a four-way switching valve) to reverse the circulation direction without changing the operation of the compressor. conduct. At this time, the fin tube refrigerant evaporative cooler according to claim 1 changes to the fin tube refrigerant reduced radiator to heat the cooled air for heating. The heat source absorbs heat from the cooling air with a cooler that has changed from a fin tube refrigerant condensation radiator to a fin tube refrigerant evaporation cooler. At this time, the important technique is not to sprinkle water on the water evaporation indirect cooling heat exchanger.
Claim 8 presents a standard basic technique for cooling a room.
On the other hand, claim 9 presents a method of cooling by releasing the cooled air into the room by using the outdoor air for both the cooling air and the cooling air. In this case, we aim to achieve the maximum air supply / ventilation effect by releasing a large amount of outdoor air into the indoor space.
Claim 10 presents a technique for supplying and ventilating outdoor air and at the same time exhausting and ventilating indoor air. According to this, if the air supply and exhaust volume are equalized to increase the ventilation volume and the air volume flows in and out equally, the indoor air pressure is equalized to the outdoor air pressure, and it becomes positive pressure or negative pressure. It is possible to prevent injuries and abnormal noise caused by sudden opening and closing of the door due to the difference in air pressure.
Claim 11 presents a method of easily installing a ventilation air passage to perform supply air ventilation and exhaust ventilation in the proposed devices of

claims

1, 2, 3, 4, and 5.
Most of the equipment is air passages that pass air on the cooling side and air on the cooling side, and since both air passages are adjacent to each other, a ventilation hole (ventilation port) is provided in the partition wall (partition wall). If a blower is installed there, it is possible to easily transfer air from one air passage to the other air passage. By providing two ventilation openings for exhaust and air supply, it is possible to easily perform exhaust ventilation and air supply ventilation.
Claim 12 presents a technique for controlling cooling and cooling capacities. How to detect the temperature of the cooling space and control it when it is judged that the cooling and cooling capacity is too sufficient is to realize stable cooling performance, maintenance of comfort, and minimization of power consumption. It is an important technology. First, when it is desired to control the compressor for the heat pump and still control the cooling performance to be further reduced, it is desirable to control the amount of water sprinkled on the water evaporation indirect cooling type heat exchanger. When it is desired to further reduce the cooling performance, control is performed to reduce the amount of air blown by the device.
Claim 13 presents a practical technique of a method of enhancing the cooling or cooling effect by dehumidifying the air before introducing the air to be cooled in the cooling cooling or the cooling device. This is explained as means 3 of the cooling and cooling measures explained at the beginning. As shown in the cross section in FIG. 4, the desiccant slip is a flat plate made of paper or resin carrying a desiccant material (hygroscopic material) such as silica gel, zeolite, or a polymer hygroscopic material, and a flat plate made of resin, which is molded into a wavy shape. The corrugated sheets are overlapped as shown in FIG. 4 and the whole is joined in a flat shape, and the planar shape is a quadrangle. FIG. 4 shows the cross section so that the wavy shape can be seen. A number of these desiccant slips are stacked so that the wave shapes are in the same direction to form a desiccant block. If the vertical pitch 32 and the wave pitch 33 are appropriately selected, a large number of air passages through which air passes are configured in the desiccant block.
In claim 13, the air to be cooled is passed through the desiccant block in advance to absorb moisture by the desiccant hygroscopic material, and the temperature is raised by a corresponding amount. By using this high-temperature cooled air as the processing air, the amount of cooling heat when cooled in the water evaporation indirect cooling type heat exchanger and the fin tube refrigerant evaporation cooler is larger than that in the case where the desiccant block is not passed. To increase. If it is humidified and adjusted before it is finally blown out as output air, it will be possible to output cooler air at the optimum humidity.
According to claim 14, two types of steps, a so-called drying preparation step of heating and releasing the hygroscopic agent in the desiccant block and a step of absorbing moisture and absorbing moisture from the air-conditioned air, may be performed at the same time, so two blocks are prepared. However, it is necessary to operate these two steps simultaneously or separately. In the daytime, it is possible to dehumidify the air-conditioned air by the moisture absorption process during the daytime cooling process by drying both blocks using solar heat, and using separate blocks one by one during the daytime. It is also possible to perform the drying step and the moisture absorbing step for cooling at the same time.
This desiccant block has a kind of heat storage layer function that utilizes the latent heat of water. Compared to the heat storage water tank that uses the sensible heat of the water in the hot water storage tank, the volume of the entire layer can be reduced and the weight can be significantly reduced by using latent heat. Taking advantage of this effect, there are many advantages in installing a building.
Claim 15 presents that it is easy to install and store in a narrow space such as a ceiling, an attic, or an underfloor space of a high-rise building or a house, or a space with a weight limit. Its characteristics are extremely effective as part of the air conditioner of the building.

The following effects can be expected from the above invention.
1. Half the amount of electricity consumed by operating an air conditioner, prevent global warming, and have an economic effect on consumers.
2. Significant reduction in the amount of Freon refrigerant that affects global warming 3. Improvement of air conditioning characteristics and promotion of health and safety by improving ventilation functions.
4. Providing and disseminating cooling comfort to people in developing countries in the tropics

FIG. 1 is an internal configuration diagram viewed from the side of the hybrid cooling device according to the present invention.
FIG. 2 is a side view of the 100% ventilated cooling / cooling device according to the present invention. FIG. 3 is a side view of the 100% ventilation / exhaust type cooling / cooling device according to the present invention. FIG. 4 is a cross-sectional view of the desiccant slip according to the present invention. be

FIG. 1 shown in FIGS. 1 and 2 shows a side view of the hybrid cooling / cooling device 1 according to the present invention. 16 indicates the outer wall of the building, the left side of which is indoors and the right side is outdoor. The indoor air 7 is sucked from the suction port of the air 20 to be cooled, advances to the right on the front side of the upper part of the apparatus, makes a U-turn to the middle part, and is cooled in the water evaporation indirect cooling type heat exchanger 2. It is cooled while proceeding from right to left in the flow path of the flowing air. After that, it passes through the fin tube refrigerant evaporation cooler 3 and is further cooled to a lower temperature to be dehumidified. As a result, hybrid cooling is performed.
When the dry fin tube refrigerant condensed radiator 5 is operating, it is heated by the dry fin tube and is sent out by the air blower 8 on the side where the temperature becomes substantially the same as the indoor air temperature and is cooled into the room. When no refrigerant is flowing in the dry fin tube 5, the cooled air is blown into the room in a cooled state for cooling.
On the other hand, the outdoor air on the cooling side is sucked from the suction port 19, passes through the inner side of the upper part of the apparatus, and is sucked from the upper surface of the water evaporative cooling type heat exchanger 2. At the same time, water is sprayed by three sprinklers 15 as indicated by the arrows, and together with the outdoor air, flows down the flow path of the cooling air of the heat exchanger 2, and the surface of the flow path at that time is sprinkled. It flows together with the water and cools the surface of the flow path by evaporating the water. Although the water evaporation indirect cooling heat exchanger 2 is not shown, 129 vertical and 129 thin aluminum plates having a plane area of 300 mm in length and width and about 260 sheets are laminated in a state where the pitch is 3 mm. Every other air passage that flows in the direction and 129 in the horizontal direction is configured, and the vertical air passage and the horizontal air passage are configured to exchange heat between the air flowing across the thin aluminum plate. ing. The cooling air flowing through the vertical air passage and the cooling air flowing through the horizontal air passage are completely separated and are configured so as not to be mixed. The basic structure of this heat exchanger is known as a plate-type air-to-air heat exchanger.
After that, the outdoor air on the cooling side passes through the fin tube refrigerant condensed radiator 4, cools the outdoor air, and the temperature of the outdoor air rises by that amount and is exhausted to the outside of the device by the air blower 10 on the cooling side. At that time, as shown in claim 3, water is sprinkled in the direction of the arrow from the sprinkler 14 for the fin tube refrigerant condenser, and the radiator 4 is efficiently cooled by utilizing the latent heat of vaporization of the water.
The sprinkler 14 and the sprinkler 15 utilize the water pumped from the evaporative cooling water storage tank 13 by the evaporative cooling water water pump 12. Of the water sprinkled from all the sprinklers, the portion that has not evaporated is returned to the water storage tank 13 for evaporative cooling water and reused.
When the additional cooling air blower 11 is operated, the cooled air is sent to the cooling side air 9 after being cooled, and flows as the cooling air as shown by the arrow air volume shown in the figure to operate. Exhaust ventilation is performed by this amount of air. Since the temperature of this air is lowered, the downstream portion of the cooled air in the water evaporation indirect cooling heat exchanger 2 of the air 7 cooled by the temperature is further cooled, so that the temperature is lower. Will be cooled to. That is, when exhaust ventilation is performed due to this effect, heat loss due to ventilation, that is, ventilation loss occurs, but about 50% of the energy loss is recovered.
When the air supply / ventilation blower 17 is operated, air supply / ventilation is performed for the air volume. When the two

ventilation blowers

11 and 17 are operated at the same time, the air supply and the exhaust are balanced, so that there is an effect that the indoor air pressure can be ventilated in the atmospheric pressure state.
Although not shown, the heat exchangers of the

refrigerant compressors

6 and 3, 4, and 5 have the same configuration as a general heat pump refrigeration cycle. The refrigerant is not a Freon refrigerant, but a new refrigerant such as an HC refrigerant that does not affect global warming. When all the blowers and compressors in the apparatus are operated, the air and the refrigerant are operated, and the indoor air is cooled as the air 7 to be cooled and output to the room for cooling.
In the heat pump refrigeration cycle, HC propane gas, which is an operating refrigerant, is compressed by a 6-refrigerant compressor to form a high-temperature, high-pressure gas refrigerant, which is dissipated by the fin tube refrigerant condensing radiator 4 to change to a liquid refrigerant. Although this liquid refrigerant is not shown, the flow rate and pressure are controlled by an expansion valve, and the outlet becomes a low temperature liquid refrigerant, which is sent to the fin tube refrigerant evaporation cooler 30 to cool the room air.
When the dry operation is performed as in claim 2, the high temperature gas refrigerant discharged from the compressor is first guided to the 5-dry fin tube refrigerant condensed radiator and dissipated to the cooled indoor air. Is reheated, and then sent to the fin tube refrigerant condensed radiator 4 to flow as described above.
In FIG. 1, in the apparatus in which the heat pump refrigeration cycle is not installed, as described in claim 5, both the air on the cooling side and the air on the cooling side are cooled by the latent heat of evaporation of the sprinkled water. Both can be used as cooling and cooling devices. The air installed in the office in the factory and cooled is used to cool the inside of the office, and the cooling air is used as a device to cool the inside of the factory around the office. Although the air on the cooling side is humidified, it can be used as a cooling device in an open space factory. In a normal heat pump type air conditioner, the air on the cooling side is exhausted at a high temperature, so a cooling effect cannot be expected, but in a cooling device using a water evaporation indirect cooling type heat exchanger, the effect of cooling not only the indoor side but also the outdoor side Can be expected.
During the heating operation, the cooling water sprinkling is stopped, the flow of the refrigerant in the heat pump cycle is changed, and the fin tube heat exchangers shown in 3 and 5 are condensed radiators, and the fin tube heat exchangers shown in 4 are used. Switch the control valve (not shown) during the cycle to operate as an evaporative heat exchanger. As a result, the air on the cooled side is heated and blown out into the room and the refrigerator, and as a result, the heating operation is performed.
FIG. 2 shows a side configuration view of a fully ventilated hybrid cooling cooling system. The device of FIG. 1 is based on zero ventilation, whereas the device of FIG. 2 is based on 100% ventilation. It is a device suitable for spaces with poor air environment, and is based on the fact that all the air handled is outdoor air. Outdoor air is also used for the air 7 on the cooling side, and outdoor air is also used for the air on the cooling side. The air supply / ventilation blower 17 installed in the device of FIG. 1 is not installed. Air conditioners with high ventilation are desired in distribution warehouses, factories, open restaurants, etc. where the indoor air environment is poor. Since a large amount of air supply ventilation is performed in the device of FIG. 2, it is used in a place where it is welcomed to have a positive pressure due to air supply in the room or the refrigerator.
In FIG. 3, indoor and indoor air is used as the air 9 on the cooling side with respect to FIG. 2. The amount of air inside the room to be exhausted, the amount of air inside the refrigerator 9 and the amount of air supplied from the outside to the outside of the refrigerator are balanced. ..
In the devices shown in FIGS. 1, 2 and 3, control of cooling and cooling capacity is important in terms of energy saving and comfort. When the temperature of the indoor air is lower than the set value, the operation of the refrigerant compressor 6 is stopped, the hybrid cooling is canceled, and the indoor air is cooled by the water evaporation indirect cooling type heat exchanger 2 and output to the room. Cool. Even so, when the temperature of the indoor air is lower than the set value, the evaporative cooling water pump 12 suppresses the flow rate or even stops. By performing the above operation control, the drive power consumption of the refrigerant compressor 6 can be reduced, and the energy saving performance of the apparatus is greatly improved. This technique is proposed in claim 12. On the contrary, when the air temperature in the room or the refrigerator is higher than the set value, the operation of the refrigerant compressor 6 and the sensible cooling water pump 12 is also stopped as in claim 6, and the water evaporation indirect cooling type heat is stopped. A method of performing cooling operation by sensible heat exchange by the exchanger 2 is selected.
A method of further improving cooling and cooling performance and reducing energy consumption is shown in claim 13. This is a method in which a dehumidifying device using a desiccant unit that uses a heat source such as a solar heat source is used in combination with a hybrid.
Claim 13 presents a technique for enhancing the cooling or cooling effect by dehumidifying the air to be cooled in the cooling cooling device or the cooling device before introducing the air. As shown in the cross section of FIG. 4, the desiccant slip used here is a flat plate made of paper or resin carrying a desiccant (hygroscopic material) such as silica gel, zeolite, or a polymer hygroscopic material, and a wavy shape thereof. As shown in FIG. 4, the corrugated sheets molded into the above are laminated and joined in a plane shape, and the plane shape is a quadrangle. The figure shows the cross section so that the wavy shape can be seen. A number of desiccant slips are stacked so that the wave shapes are in the same direction to form a desiccant block. Since the vertical pitch 32 and the wave pitch 33 exist, an air passage through which air passes is configured in the desiccant block. Each of the two desiccant blocks is equipped with two blowers for ventilation, a total of four blowers (not shown), and the blower for passing the heat source air taken from the heat source and the air on the cooling side. It is a blower for passing 7.
As shown in claim 14, one desiccant block is dried using the heat of the summer sun, and another desiccant block is used for cooling used in the cooling and cooling apparatus shown in FIGS. 1, 2, and 3. A mode that uses the air on the side to dry and raise the temperature, and two desiccant blocks that are dried using the heat of the summer sun, and in the evening, these two desiccant blocks are used in the figure. It can also be used to raise the drying temperature of the air on the cooled side used in the cooling and cooling devices shown in 1, 2 and 3, and has the advantage of being compatible with both usage modes.
When the desiccant block is used as described above, its required volume becomes large. However, since desiccant materials and desiccant slips are as light as paper, the load of the block is not restricted in terms of load capacity in the building, and the hybrid cooling and cooling device uses the ceiling, attic, and underfloor as storage spaces. It has the advantage of being easy to install in the vicinity of 1, 2, and 3.
As outlined above, there are many technological development themes for widespread use as new air conditioners, especially cooling devices, aiming for the future of the 21st century. We would like to promote the practical application of the present invention proposal as one of the basic techniques.

According to the present invention, an air conditioner and an air conditioner can be realized by a new principle instead of the conventional refrigerant type air conditioner, and a new air conditioner market can be cultivated. There is a possibility that the world's new air conditioning industry will spread all over the world. Furthermore, there is a possibility that an air conditioner with zero energy consumption will be created by using solar heat.

1 Hybrid cooling and cooling device 2 Water evaporation indirect cooling heat exchanger 3 Fin tube refrigerant evaporation cooler 4 Fin tube refrigerant condensed radiator 5 Dry fin tube refrigerant condensed radiator 6 Refrigerator compressor 7 Air to be cooled 8 Blower for cooled air 9 Air on the cooling side 10 Blower for air on the cooling side 11 Blower for additional cooling air 12 Pump for evaporative cooling water 13 Water storage tank for evaporative cooling water 14 Fin tube Sprinkler for refrigerant condensed radiator 15 Water Evaporation Sprinkler for indirect cooling heat exchanger 16 Building outer wall 17 Air supply ventilation blower 19 Cooling air suction port 20 Cooled air suction port 30 Desiccant flat plate 31 Desiccant corrugated plate 32 Desiccant flat plate pitch 33 Desiccant wave Wave pitch of the board

Claims

A water evaporation indirect cooling type heat exchanger and a fin tube having a structure in which two airs are flowed in a state of being separated by sandwiching a large number of heat transfer surfaces, and the two airs are sprinkled and cooled to exchange heat with the two airs. In a device incorporating a heat pump cycle in which a refrigerant evaporation cooler, a fin tube refrigerant condensing radiator, and a compressor are connected in a cycle by a refrigerant pipeline, and a blower for blowing the two airs.
In the water evaporation indirect cooling type heat exchanger, the air on the cooling side is humidified and cooled by sprinkling water on the surface of the heat transfer surface of the cooling side or the flow path thereof, and the opposite surface of the heat transfer surface is cooled. The air on the cooled side flowing in contact with the heat transfer surface is cooled without being humidified, and the air on the cooling side that has been humidified and cooled is used in the fin tube refrigerant condensing radiator for heat dissipation of the heat pump cycle. The refrigerant flowing inside the tube is cooled by flowing through the fin portion and then discharged to the outside of the device, and the cooled air cooled without being humidified is passed through the fin tube refrigerant evaporation cooler of the heat pump cycle to the tube. A cooling or cooling device characterized in that the air to be cooled by a low-temperature refrigerant flowing inside is further cooled and the cooled air is used as an output.
The first aspect of the present invention is characterized in that, before the cooled air is cooled and output, it is reheated through the fin portion of the fin tube refrigerant condensing radiator for reheating added to the heat pump cycle and then output. The cooling or equipment described.
The fact that the output water of the same cooling water water pump was used for the water to be sprinkled on the cooling side air or the water evaporation indirect cooling type heat exchanger in the flow path thereof and the fin tube refrigerant condensation radiator for heat dissipation. The cooling or cooling device according to any one of claims 1 and 2 as a feature.
Water evaporation The cooled air flowing out of the indirect cooling heat exchanger is divided into two parts, a part of which is output as described in claims 1, 2 and 3, and the other part of the air is evaporated by the water. It is characterized by being a part of the air to be cooled by merging with the cooling air before flowing into the indirect cooling type heat exchanger, and flowing into the water evaporation indirect cooling type heat exchanger as cooling air. The cooling or cooling device according to any one of claims 1, 2 and 3.
In a water evaporation indirect cooling type heat exchanger that has a structure in which two airs are flowed in a separated state across a heat transfer surface and the two airs are exchanged for heat, the heat transfer surface of one of the cooling side air or its flow path. The air on the cooling side is humidified and cooled by sprinkling water on the surface, and the air on the other cooled side flowing in contact with the opposite surface of the heat transfer surface is cooled without being humidified through the heat transfer surface. Then, the air on the cooling side and the air on the cooling side are blown out so as to hit different spaces or different cooled objects, and the separate spaces or cooled objects are simultaneously cooled or cooled. A cooling or cooling device characterized by cooling.
The water evaporation indirect cooling type is used when the conditions such as when the temperature of the air on the cooling side is lower than a constant temperature than the air temperature on the cooling side and when another constant temperature and high temperature are satisfied. Controlled so that the cooled air can be cooled by stopping watering to the heat exchanger, stopping the operation of the compressor of the heat pump, and exchanging heat due to the temperature difference between the two air. The cooling or cooling device according to any one of claims 1 and 5, wherein the cooling device is operated.
By stopping watering to the water evaporation indirect cooling type heat exchanger and the fin tube refrigerant condensing radiator and reversing the flow of the refrigerant in the heat pump cycle, the fin tube refrigerant condensing radiator is cooled by refrigerant evaporation. By operating the device and the fin tube refrigerant evaporation cooler as a refrigerant condensation radiator to heat the cooled air to a high temperature and output it, it is possible to operate with a heating function. The cooling or cooling device according to claim 1, which is characterized.
Claims 1, 2, 3, 4, 5 characterized in that the cooled air is discharged into the room as output air using indoor air, and the outdoor air is used as the cooling air to be discharged to the outside. The cooling or cooling device according to any one of the above.
Outdoor air is used for both the cooled air and the cooled air, and the outdoor air, which is the cooled air, is taken in from the outside and discharged into the room to be output air, and the cooled air is taken from the outside. The cooling or cooling device according to any one of claims 1, 2, 3, and 4, characterized in that the air is taken in and discharged to the outside of the room.
One of claims 1, 2, 3 and 4, characterized in that the cooled air is taken in the outdoor air and discharged as output air into the room, and the cooled air is taken in the indoor air and discharged to the outside. The cooling or cooling device according to the section.
It features two ventilation openings on the partition wall where indoor and outdoor air flows on both sides, a ventilation port that exhausts indoor air to the outdoor air side, and a ventilation port that supplies outdoor air to the indoor air side. The cooling or cooling device according to any one of claims 1, 2, 3, 4, and 5.
When adjusting the cooling or cooling capacity for the purpose of controlling the temperature of the air or space blown out into the target space for cooling or cooling, first, the compressor is controlled by switching between operation and non-operation, and the compressor is controlled. When the capacity is further reduced and adjusted in the stopped state, the claim is characterized in that the water evaporation indirect cooler heat exchanger is adjusted by selectively controlling the presence or absence of watering of the cooling water or the amount of water. Item 6. The cooling or cooling device according to any one of Items 1, 3, 4, 8, 9, 10, and I.
Before the air to be cooled or the air blown out into the target space for cooling is introduced into the cooling or cooling device, the desiccant block is dehumidified by introducing high-temperature air using heat such as solar heat. After heating at the same time, the air to be cooled or the air blown out to the target space for cooling is passed through the laminate of the desiccant slip to dehumidify the air, and the cooling or cooling is performed in a high temperature state. The cooling or cooling device according to any one of claims 1 to 12, which is characterized by being introduced into an apparatus.
Two of the desiccant blocks are fixedly installed, one of which is introduced with high temperature air to dehumidify and heat it, and the other is blown out to the desiccant block to the cooled air or the target space for cooling. When the two desiccant blocks are used for different functions at the same time, and two at the same time, the air is passed through to dehumidify the air and introduced into the cooling or cooling device in a high temperature state. By introducing high-temperature air to dehumidify and heat it, and to dehumidify and heat the passing air at the same time for two units at different times, it is possible to operate for different purposes. The cooling or cooling device according to claim 13, which is characterized by this.
The desiccant block is housed in a lightweight storage case made of resin other than iron plate, wood, paper, thin aluminum, etc., and installed in the ceiling, attic, underfloor, etc. of the building to be cooled or cooled. The cooling or cooling device according to any one of claims 13 and 14, wherein the cooling device is characterized by the above-mentioned item I.