JP3770103B2 - Water-cooled air conditioner - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an air conditioner mainly used in a room with a small installation space such as a toilet.
[0002]
[Prior art]
As an air conditioner of this type, there is an air conditioner for toilets that cools a condenser with water in a cistern as disclosed in Japanese Patent Application Laid-Open No. 58-26941. The air conditioner main body is installed in the upper part of the cistern, and the cooler of the evaporator is blown out into the room from the outlet by a blower, thereby cooling the room. On the other hand, the heat of the condenser is taken away by sensible heat and latent heat of evaporation by sprinkling water in the cistern pumped up by the pump, and the hot and humid air is drained to the toilet through the drain pipe.
[0003]
Another example is Japanese Utility Model Laid-Open No. 4-103525. This is because a cooling water storage tank that cools the condenser is attached to the air conditioner body, tap water is pumped from a spare water supply port of the systern, and cooling water is supplied to this cooling water storage tank. It is set as the structure which provides a water supply equipment part.
[0004]
[Problems to be solved by the invention]
However, in the former configuration, since it is installed at the upper part of the cistern and drains hot and humid air to the toilet, 1. The structure is very complicated when retrofitted on the assumption that the tank is integrated with the tank. In the case of retrofitting, the air conditioner body is required to have a shape suitable for a wide variety of toilets. There are many problems, such as difficulty in mounting in places other than the upper part of the cistern.
[0005]
In the latter configuration, it is necessary to install a large water supply facility on the side of the cistern. 1. The installation of the air conditioner main unit is at a low position, the outlet is also at a low position, and the feeling of cold wind is difficult to be transmitted. When the air conditioner main body is made tall, it cannot be installed on the side of the cistern, and when installed in a narrow toilet, there are problems such as being very disturbing.
[0006]
The present invention solves such a conventional problem, and an object thereof is to provide a water-cooled air conditioner that can be easily retrofitted and installed in a small space.
[0007]
[Means for Solving the Problems]
In order to solve the above-described problems, the present invention provides a main body including a compressor, a water-cooled condenser, a decompression mechanism, an evaporator, and a blower, a cooling water container that stores the cooling water of the water-cooled condenser, and the cooling water. A water-cooled air conditioner comprising a circulation pump for cooling water that is sent from a water container through a pipe to the water-cooled condenser and returned to the cooling water container again, and the power supply terminal for driving the circulation pump is connected to the air conditioner body. Is provided on the outer surface of the.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
The invention according to claim 1 is a main body including a compressor, a water-cooled condenser, a decompression mechanism, an evaporator, and a blower, a cooling water container for storing cooling water of the water-cooled condenser, and the cooling water from the cooling water container. A water-cooled air conditioner comprising a circulating pump for cooling water that is sent to the water-cooled condenser through a pipe and returned to the cooling water container again, and the power supply terminal for driving the circulating pump is connected to the outer surface of the air conditioner main body. Even if it is a cooling water tank that has already been installed (for example, a flush tank in a toilet), priming water, etc. is required simply by immersing only the circulation pump in the cooling water tank and connecting the piping for cooling water. The air conditioner can be easily installed, and the power supply terminal for driving the circulation pump is provided on the outer surface of the air conditioner body. It is easy to install and can be easily replaced when the pump is damaged. It can be carried out.
[0009]
The invention according to claim 2 is the one in which the curved water-cooled condenser is disposed in the projection plane at the upper part of the compressor and approximately twice the diameter of the compressor. It can be stored compactly while pulling out the capacity, the area of the air conditioner body viewed from above can be reduced, and the installation area can be reduced.
[0010]
The invention according to claim 3 is the one in which the curved evaporator is arranged in the upper part of the compressor and in the projection plane which is approximately twice the diameter of the compressor, and it is stored compactly while taking up the suction area of the evaporator. It is possible to draw out the cooling capacity, reduce the area of the air conditioner main body viewed from above, and reduce the installation area.
[0011]
In the invention according to claim 4, the water-cooled condenser is composed of a counter-flow heat exchanger, so that the condensing capacity can be maximized and can be stored compactly.
[0012]
The invention according to claim 5 is provided with means for storing the condensed water adhering to the evaporator in a container and detecting the amount of water in the container, and further comprising control means for stopping the operation when the amount of water exceeds a certain amount. However, when installing it, it is possible to prevent the condensed water from leaking by stopping the operation in a full water condition without requiring any construction other than the piping connection for the cooling water.
[0013]
The invention according to claim 6 is provided with means for draining the condensed water adhering to the evaporator to the cooling water container, and is freed from the troublesome treatment of the condensed water.
[0014]
According to a seventh aspect of the present invention, the blowout port from which the cold air that has passed through the evaporator blows out is provided with a wind vane, and the height near the center of the blowout port is provided in the vicinity of 700 mm to 900 mm from the floor surface. And according to this structure, when sitting on the western style toilet seat of a toilet, even if it is an adult or a dwarf, a cold air current can be applied to the shoulder vicinity only by a wind direction feather, without changing the height of an outlet.
[0015]
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a basic configuration of a water-cooled air conditioner according to the present invention. FIG. 2 is a cross-sectional view taken along plane AA in FIG.
[0016]
In the water-cooled air conditioner body 1, a water-cooled condenser 12 that is spirally curved is disposed at the top of a compressor 11, an evaporator 13 that is curved in a U-shape is disposed at the top, and a blower is further disposed at the top. 14 is arranged. In other words, by placing the main components (compressor, water-cooled condenser, evaporator, blower) that make up the water-cooled air conditioner in descending order of weight, the center of gravity of the water-cooled air conditioner body is set to the lowest position. It is configured to be able to be placed on the floor stably without being easily collapsed.
[0017]
The blower 14, the evaporator 13, and the water-cooled condenser 12 are arranged so as to overlap the compressor 11 when the water-cooled air conditioner body 1 is viewed from above, and have a circle 31 that is approximately twice the diameter of the compressor. Arranged in the projection plane. In other words, it is possible to increase the length by bending the evaporator 13 and the water-cooled condenser 12, and it is possible to store it in a compact manner while drawing out its capacity, and the area of the water-cooled air conditioner body seen from above can be reduced, and the installation area can be reduced. Can be made smaller. In this embodiment, the water-cooled condenser 12 is curved in a circular shape, but the same effect can be obtained even in an elliptical shape. Similarly, in this embodiment, the evaporator 13 is curved in a U shape, but the same effect can be obtained even if it is curved in an L shape.
[0018]
The refrigeration cycle is a well-known cycle in which the refrigerant discharged from the compressor 11 enters the water-cooled condenser 12, exchanges heat, enters the evaporator 13 through the throttle 23, exchanges heat, and returns to the compressor 11. It has become.
[0019]
The cooling water 18 for cooling the water-cooled condenser 12 is stored in a cooling water container 17 provided outside the water-cooled air conditioner body 1, and a circulation pump 15 is provided in the cooling container 17. . The cooling water 18 passes through the pipe 21a in the direction of the arrow by the circulation pump 15, passes through the pipe 21b via the pipe connection port 19a, and enters the water-cooled condenser 12. After cooling the refrigerant in the water-cooled condenser 12, the heated cooling water passes through the pipe 22b, passes through the pipe connection port 19b, passes through the pipe 22a, flows out in the direction of the arrow, and returns to the cooling water container 17 again. .
[0020]
Since the basic configuration is as described above, even in a cooling water tank that has already been installed (for example, a flush tank in a toilet), only the circulation pump is immersed in the cooling water tank and the cooling water pipe is connected. No priming water is required, and the air conditioner can be easily attached.
[0021]
In addition, the outer periphery of the water-cooled air conditioner main body 1 is provided with a circulation pump drive power supply terminal 81 so that the circulation pump can be easily connected and can be easily replaced when the circulation pump is broken. It has become.
[0022]
The air flows from W1 side of the windward side of the evaporator 13, passes through the evaporator 13, is cooled, and flows out from the outlet to the W2 side.
[0023]
Next, the water-cooled condenser 12 will be described with reference to FIGS. The water-cooled condenser 12 has a double-pipe heat exchange system, and includes an inner tube 52 and an outer tube 55. The refrigerant flows in the inner tube 52 as indicated by an arrow A1, and is formed by the outer tube 55 and the inner tube 52. The cooling water flows in the direction of arrow B2 through the donut-shaped flow path. A water-cooled condenser 12 is formed by bending the tube into a curved shape. 53 is an inlet pipe for cooling water, and 54 is an outlet pipe.
[0024]
FIG. 4 shows the temperature distribution of the refrigerant and cooling water in the water-cooled condenser. The solid line is the counter flow, and the broken line is the cooling water temperature distribution in the parallel flow. In the case of a parallel flow, the temperature difference ΔT between the refrigerant and the coolant near the refrigerant side inlet becomes ΔT1 = T _rin −T _2out and a large temperature difference can be expected, but ΔT2 = T _rout −T _1out and the temperature near the outlet The difference is small and heat exchange efficiency is poor. On the other hand, if the counter flow, in ΔT3 = T _rin -T _1out in the vicinity of the inlet of the refrigerant in the vicinity of the outlet can be expected temperature difference on average to the outlet from the inlet next ΔT4 = T _rout -T _1in, efficiency is improved. As a result, the condensation capacity can be maximized, and it can be stored compactly.
[0025]
Next, the treatment of the dew condensation water generated in the evaporator will be described. FIG. 5 is a detailed view of the dew condensation water recovery unit. The condensed water adhering to the evaporator 13 is temporarily received by the water tray 63 and stored in the container 61 through the drain hole 64. Floats 62a and 62b floating in water are provided in the container 61. When the condensed water 65 is stored, the float is pushed up to 62b from the position of the float 62a by the water, thereby detecting the amount of water. On the other hand, when the amount of water exceeds a certain amount, the dew condensation water 65 is drained to the pipe 72 by the drain pump 71. There is a water-cooled condenser 12 on the D1 side of the pipe 72, and the cooling water that has cooled the water-cooled condenser 12 flows in from the D1 side, flows out to the D2 side, and then flows out into the washing tank. Therefore, the dew condensation water is discharged together with the cooling water to the washing tank. This configuration frees you from the hassle of treating condensed water.
[0026]
Although the drainage pump is used in this embodiment, the condensed water can be leaked without cost if the operation is stopped when the amount of water exceeds a certain amount without using the drainage pump. Can also be prevented.
[0027]
Next, the cold air outlet will be described. FIG. 6 shows a relationship with a person when sitting on a toilet bowl. The water-cooled air conditioner main body 1 is installed on the backs of the persons 96a and 96b, and cool air is applied to the vicinity of the shoulders 97a and 97b. The height H1 of the air outlet 91 is set to be between 700 mm and 900 mm from the floor surface. FIG. 7 is a detailed view of the air outlet 91. The wind direction vane 92 rotates up and down around the rotation center 93 and can change the direction as the wind direction 98 or 99. FIG. With this configuration, when sitting on a Western-style toilet seat in a toilet, it is easy for adults and children to easily apply cool airflow to places that feel cool, such as near the shoulders, without changing the height of the outlet. Can do.
[0028]
【The invention's effect】
As is clear from the above embodiment, a main body composed of a compressor, a water-cooled condenser, a decompression mechanism, an evaporator and a blower, a cooling water container for storing the cooling water of the water-cooled condenser, and the cooling water into the cooling water container A water-cooled air conditioner comprising a circulating pump for cooling water that is sent to the water-cooled condenser through a pipe and returned to the cooling water container, and the power supply terminal for driving the circulating pump is connected to the outer surface of the air conditioner body. Even if it is a cooling water tank already installed (for example, a flush tank in a toilet), just immersing the circulation pump in the cooling water tank and connecting piping for cooling water no need, easily it is possible to mount the air conditioner, the driving power supply terminal of the circulation pump, those provided on the outer surface of the air conditioner main body, is easy to install, exchange when the pump is broken It can also be carried out easily.
[0029]
Furthermore, since the water-cooled condenser and the evaporator are arranged in the projection plane of the circle made by twice the diameter of the compressor, the length can be increased, and it can be stored compactly while extracting the condensation or evaporation capacity. The area of the air conditioner main body viewed from the above can be reduced, and the installation area can be reduced.
[0030]
Further, if the water-cooled condenser is constituted by a counter-flow heat exchanger, the efficiency is improved and the condensing capacity can be maximized. In addition, if the condensed water adhering to the evaporator is stored in a container and the operation is stopped when the amount of water exceeds a certain amount, the installation will not require any work other than connecting the cooling water pipes. By stopping the operation in a state, it is possible to prevent the condensed water from leaking. Furthermore, if a means for draining the condensed water into the cooling water container is provided, it is freed from the troublesome treatment of the condensed water, and the convenience for the user is improved.
[0031]
Further, since the power supply terminal for driving the circulation pump is provided on the outer surface of the main body, it can be easily installed and can be easily replaced when the pump is broken.
[0032]
In addition, the blowout port from which the cold air blows is equipped with wind direction vanes, and the height near the center of the blowout port is set in the vicinity of 700mm to 900mm from the floor. Without changing the height, it is possible to apply a cold airflow to the vicinity of the shoulder with just the wind vane, improving the comfort of the user.
[Brief description of the drawings]
FIG. 1 is a block diagram of a water-cooled air conditioner showing an embodiment of the present invention. FIG. 2 is a cross-sectional view taken along the line AA of FIG. 1. FIG. FIG. 4 is a cross-sectional view in the longitudinal direction. FIG. 4 is a temperature distribution diagram in the water-cooled condenser. FIG. 5 is a detailed view of a dew condensation water recovery unit in the embodiment of the present invention. FIG. 7 is a diagram showing a dimensional relationship with a person sitting on a toilet bowl. FIG. 7 is a detailed view of an outlet of the embodiment of the present invention.
DESCRIPTION OF SYMBOLS 1 Water-cooled air conditioner main body 11 Compressor 12 Water-cooled condenser 13 Evaporator 14 Blower 15 Circulation pump 18 Cooling water

Claims (7)

A main body composed of a compressor, a water-cooled condenser, a decompression mechanism, an evaporator and a blower, a cooling water container for storing the cooling water of the water-cooled condenser, and the cooling water sent from the cooling water container to the water-cooled condenser through a pipe. A water-cooled air conditioner comprising a circulating pump for cooling water that is returned to the cooling water container, wherein a water source for driving the circulating pump is provided on the outer surface of the air conditioner body. Air conditioner. At the top of the compressor, and a water-cooled air conditioning apparatus according to claim 1, characterized in that a substantially double water-cooled condenser curved projection plane of the compressor in diameter. The water-cooled air conditioner according to claim 1 or 2 , wherein a curved evaporator is disposed in an upper part of the compressor and in a projection plane that is approximately twice the diameter of the compressor. The water-cooled air conditioner according to any one of claims 1 to 3 , wherein the water-cooled condenser is configured with a counter-flow heat exchanger. A container reserving the dew condensation water attached to the evaporator, comprising means for detecting the amount of water in the container, when the amount of water exceeds a predetermined amount, claim 1-4 comprising a control means for stopping the operation The water-cooled air conditioner described in 1. The water-cooled air conditioner according to any one of claims 1 to 5 , further comprising means for draining the condensed water adhering to the evaporator to a cooling water container. Includes a wind direction blade to outlet blowing out cold air passing through the evaporator, the height near the center of the outlet, according to claim 1 to 6 provided between the substantially 700mm~900mm from the floor according to any one Water-cooled air conditioner.

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