KR20110140036A - Cold and hot water purifier - Google Patents

Abstract

PURPOSE: A water purifier for producing hot and cold water is provided to excessively cool a refrigerant discharged from a condenser in a capillary entrance, thereby reducing power consumption of a warm water heater and improving capillary tube efficiency. CONSTITUTION: A water purifier for producing hot and cold water comprise a heater(61), a water tank(50), a cold water tank(51), a hot water tank(60), and a cooling system. The cooling system comprises a compressor(10), a condenser(20), a capillary tube(30), and an evaporator(40). The condenser is connected to the compressor through piping. The capillary tube is connected to the compressor through the piping. The evaporator is connected to the capillary tube through the piping and connected to the compressor. An excessive cooling pipe(25) is included in the piping which connects the compressor and capillary tube. The excessive cooling pipe exchanges heat with the water tank.

Description

Cold and Hot Water Purifier {COLD AND HOT WATER PURIFIER}

The present invention relates to a cold and hot water purifier, and more particularly, the efficiency of reducing the power consumption of the compressor and the heater by reducing the temperature of the purified water by lowering the temperature of the purified water by exchanging heat with the purified water of the reservoir before the refrigerant from the condenser enters the capillary tube. It relates to an improved cold and hot water purifier.

Cold and hot water purifier has a configuration that adds the function of the cold water and water heater to the water purifier that has only the general water purification function. More specifically, it is equipped with the filter which is a general structure of a water purifier, the heater which is a general structure of a water heater, and the cooling system by the refrigerant which is a general structure of a water cooler simultaneously.

1 shows a general shape of a conventional cold and hot water purifier. As shown in FIG. 1, the conventional cold / hot water purifier includes a main body 1 forming an external appearance, a filter 2 installed at the center of the main body to purify raw water flowing into the main body, and water filtered from the filter. A water reservoir (3) for storing, a hot water unit (4) including a heater (not shown) for heating the water from the reservoir, and a cold water unit (5) including a cooling system (not shown) for generating cold water; It is configured to include a hot water intake cock (7) and cold water intake cock (6) connected to each of the hot water and cold water portion and protrudes to the outside of the main body to take cold water and hot water, each of the configuration is They are interconnected with hoses to form waterways and wiring for control.

Looking at the operation of this cold water purifier in more detail, the water purified in the filter is stored once in the reservoir. The reservoir is to maintain a stable water level to ensure a sufficient flow rate for the cold and hot water tanks. The cold water tank connected to the reservoir is wrapped around the evaporator of the cooling system. The cooling system consists of a compressor that compresses the refrigerant at high temperature and high pressure, a condenser which heat exchanges the high temperature and high pressure refrigerant from the compressor to a low temperature and high pressure state, a capillary tube which expands the refrigerant from the condenser, and a low temperature and low pressure refrigerant from the capillary tube and heat exchange with the purified water. And an evaporator for evaporation of the refrigerant. Therefore, the evaporator wraps the cold water tank to produce cold water.

On the other hand, the hot water tank is connected so that purified water flows from the reservoir tank to a path different from that of the cold water tank. The hot water bath is heated to purified water to generate hot water. Since the configuration of the heater is generally well known, detailed description thereof will be omitted.

In the case of conventional domestic cold and hot water purifiers, the narrow spatial pharmaceutical condenser generally has a heat exchanger type that cools by natural convection. Accordingly, it is inevitable to be affected by the ambient temperature, and when the ambient temperature is high, condensation performance is lowered to maintain the refrigerant state as necessary, there is a problem that the power consumption of the compressor is increased.

In addition, when the refrigerant condensed in the condenser expands through the capillary tube, it is advantageous that the refrigerant is in the same liquid state. That is, when the liquid and gas are mixed, the speed of the gas is increased to increase the pressure loss, thereby degrading the efficiency of the capillary tube. Therefore, the conventional water purifier of the natural convection method has a problem in that it is not sufficiently condensed in the condenser when the ambient temperature is high, resulting in a two-phase (two phase) at the capillary inlet. In addition, in order to reduce pressure loss, a problem arises in that the capillary tube is reduced rather than the design state.

In addition, in recent years, the design of the compact water purifier tends to be integrally formed with the water tank and the cold water tank. The hot water tank is separately provided because it cannot be integrated with the cold water tank, and maintains the temperature of the purified water in consideration of the power consumption of the cooling system to cool with cold water. However, in this case, generating hot water near 100 ° C., which is near the boiling point of water by heating at 14 ° C., requires a lot of power consumption.

Accordingly, an object of the present invention is to provide a water purifier having an efficient cooling system that reduces the power consumption of the compressor and improves the capillary performance by allowing the refrigerant from the condenser to be sufficiently cooled at the capillary inlet to be in the same liquid state. do.

In another aspect, the present invention is to provide an efficient cold and hot water purifier that can reduce the power consumption of the heater by heat exchange with the purified water in advance in the water tank.

The present invention provides the following configuration to solve the problems of the prior art as described above.

The present invention provides a cold water purifier including a filter, a water reservoir, a cold water tank, a heater, and a hot water tank, including a compressor, a condenser connected through the compressor and a pipe, a capillary pipe connected through the condenser and a pipe, and the capillary and a pipe. And a cooling system connected to the compressor and connected to the compressor, wherein the pipe connecting the condenser and the capillary tube is extended to include a supercooling pipe that exchanges heat with the reservoir.

The supercooling pipe is wound to wrap around the reservoir and is configured to heat exchange. With this configuration, the refrigerant from the condenser can be sufficiently supercooled at the inlet of the capillary before entering the capillary, and the purified water temperature of the reservoir also rises before entering the hot water bath without a separate heating means, thereby increasing the efficiency of the capillary and heating the heater. This also reduces the power consumption. In addition, since the condensation is possible through the supercooled piping, the size of the condenser may be reduced in consideration of the design of the condenser, thus enabling a compact design.

In addition, the capillary of the present invention is configured to be wound around the reservoir between the subcooling pipe and the evaporator. This enables a compact design of the water purifier without providing a space for a separate capillary tube.

In another aspect, the present invention is a cold water tank is integrally formed in the lower portion of the reservoir, the lower portion of the reservoir includes a hot water pipe connected to the hot water tank is disconnected from the cold water tank, and enters the hot water pipe by the heat exchange of the subcooling pipe and the reservoir. The purified water in the reservoir is configured to be maintained above a certain temperature.

More specifically, the purified water entering the hot water pipe is configured to be characterized in that more than 14 ℃ ~ 25 ℃, preferably the purified water entering the hot water pipe is configured to be at least higher than the inlet temperature of the cold water tank. .

Accordingly, the power consumption of the heater required to generate hot water can be reduced.

On the other hand, the cold and hot water purifier of the present invention may be formed even if the water tank and the cold water tank are not integrally formed, and the lower part of the water tank includes a hot water pipe connected to the hot water tank, and enters the hot water pipe by the heat exchange between the supercooling pipe and the water tank. The purified water inside may be configured to be maintained above a certain temperature.

With the above configuration, the present invention has the following effects.

The present invention is configured to be characterized in that the supercooled pipe is wound around the reservoir to heat exchange, the refrigerant from the condenser can be sufficiently subcooled at the capillary inlet before entering the capillary tube, the water purification temperature of the reservoir is also a separate heating means Without this, the temperature rises before entering the hot water bath, the efficiency of the capillary tube increases and the power consumption of the hot water heater also decreases.

In addition, since the condensation is possible through the supercooled piping, the size of the condenser may be reduced in consideration of the design of the condenser, thus enabling a compact design.

In addition, the present invention is configured so that the capillary tube is wound around the water reservoir between the supercooling pipe and the evaporator, the capillary tube can be installed even without providing a space for the capillary tube, so that the required space can be reduced, so that the compact design of the water purifier is possible. It becomes possible.

1 is a schematic view of a conventional cold and hot water purifier.
Figure 2 is a schematic diagram of the cold and hot water purifier of the present invention.

Hereinafter, with reference to the accompanying drawings will be described a specific content for practicing the present invention through an embodiment of the present invention.

Figure 2 shows a schematic diagram of the cold and hot water purifier of the present invention.

As shown in FIG. 2, the cold / hot water purifier of the present invention basically includes a filter 70 and a water reservoir 50. As shown in FIG. 2, the filter functions to remove suspended solids, debris, and various harmful substances contained in raw water such as tap water flowing from the tap water, and thus corresponds to a configuration generally used in water purifiers. It is not shown in detail and detailed description is abbreviate | omitted.

The reservoir 50 is a place where the purified water is temporarily stored in order to sufficiently maintain the flow rate of the water purifier. In the case of a cold / hot water purifier, it is difficult to generate a sufficient amount of cold water and hot water when needed, unless sufficient flow rate is secured through the stored purified water, and rapid cooling or heating is not preferable because excessive power consumption is required. Therefore, a sufficient flow rate is secured in advance through such a reservoir. The cold water tank 51 and the hot water tank 60, which will be described later, are also necessary configurations in the cold / hot water purifier.

As shown in FIG. 2, the cold water tank 51 is integrally formed at the bottom of the water tank. This can be separated separately. However, according to the recent trend, in the case of domestic cold / hot water purifier, it is required to efficiently utilize a narrow space, and since it is required to be compactly designed, it is preferable to form it integrally under the water tank.

Even if formed integrally, the water tank and the cold water tank are separated by a diaphragm. Therefore, the purified water of the reservoir can be supplied to the cold water tank through the diaphragm, and the cold water generated by cooling in the cold water tank goes out to be eaten through the cold water pipe (52).

2, unlike the cold water tank, the hot water tank 60 is not integrally formed with the water tank. The temperature of the conventional conventional water tank is about 14 ° C, the temperature of the cold water tank is about 4.5 ° C just before water condensation, but as described later in the present invention, the temperature of the reservoir can be maintained up to 25 ° C.

In the case of hot water, a temperature close to 100 ° C., which is the boiling point of water at atmospheric pressure, is required. Therefore, when the hot water tank is located integrally with the water tank or the integrated cold water tank, the disadvantage is that a large amount of power is required during cold water generation due to the high temperature of the hot water tank, resulting in inefficiency. Therefore, purified water is supplied from the reservoir to the hot water tank through the separate hot water tank pipe 53 in the reservoir as shown in FIG. 2.

Meanwhile, in order to generate cold water and hot water to be temporarily stored in the cold water tank and the hot water tank, the cold water tank is provided with a cooling system to be described later, and the hot water tank is provided with a heater 61. This structure is shown schematically in FIG. The heater is a general heating means, a detailed description thereof will be omitted.

 In FIG. 2, the cooling system includes a compressor 10, a condenser 20 connected through the compressor and a pipe, a subcooling pipe 25 between the condenser 20, and a capillary 30, and a capillary pipe 30 connected to the subcooling pipe. And an evaporator 40 connected through the capillary and the pipe and connected to the compressor.

The compressor 10 compresses the refrigerant at high temperature and high pressure, and the condenser 20 heat exchanges the refrigerant of the high temperature and high pressure from the compressor to a state of low temperature and high pressure, and expands the refrigerant from the condenser in the capillary 30 to form a state of low temperature and low pressure. In the evaporator 40, the refrigerant evaporates by heat exchange between the refrigerant and the purified water. The cooling cycle is formed by the above configuration. Each of the above components is connected through a pipe.

A dryer (not shown) may be provided between the condenser and the capillary tube. This separates liquid and gas so that the state of the low temperature and high pressure refrigerant from the condenser is uniform before entering the capillary. That is, when two non-uniform refrigerant states coexist during the adiabatic expansion of the refrigerant in the capillary tube, the gas velocity increases in the capillary tube to increase the pressure loss, thereby preventing the phenomenon of the capillary tube from dropping rapidly. However, in the present invention, since the refrigerant is supercooled through the subcooling pipe as described below, a separate dryer is not required.

As shown in FIG. 2, the subcooling pipe 25 refers to a pipe that extends a pipe connecting the condenser and the capillary tube to heat exchange with the reservoir. In more detail, the subcooling pipe is wound around the reservoir 50 to be heat exchanged.

Generally, in the case of domestic cold and hot water purifier, the refrigerant temperature passing through the condenser is about 43 ° C to 45 ° C. In this state, the conventional cold and hot water purifier enters the capillary tube. However, as described above, the refrigerant may be in a two-phase state, so in order to prevent this, the coolant may be subcooled to lower the temperature of the refrigerant in advance so that the dryness of the refrigerant may be constant in a single phase liquid state at the capillary inlet. It is a function of the subcooling piping of the present invention.

The supercooling pipe 25 is heat-exchanged with the purified water of the reservoir. Since the water purification tank of the present invention is about 14 ° C. to 25 ° C., it is possible to cool the refrigerant by exchanging heat with the refrigerant coming out of the condenser, and furthermore, the water purification tank may also maintain a constant temperature despite having an evaporator at the bottom.

That is, in the present invention, a cold water tank is integrally formed at the lower portion of the water storage tank, and a hot water pipe connected to the hot water tank is disconnected from the cold water tank and connected to the hot water tank at the lower portion of the water storage tank, so that the hot water pipe is heated by heat exchange between the supercooling pipe and the water storage tank. It is characterized in that the purified water temperature in the reservoir entering into is maintained above a certain temperature.

Preferably, the purified water entering the hot water pipe is preferably 14 ° C. or more and 25 ° C. or less, and is preferably maintained at least higher than 14 ° C., which is the inlet temperature of the cold water tank.

This will be described in more detail as follows. Comparing the power consumption of the cooling system for generating cold water in the cold water tank and the heater for generating hot water in the hot water tank, the power consumption of the heater is required to be about 4: 6 in a state of about 14 ° C to 25 ° C. Therefore, if the temperature of the water tank is set a little in advance, it is advantageous in the power consumption of the overall water purifier.

However, if the above condition is exceeded, that is, over 25 ° C., the compressor of the cooling system is overloaded and power consumption is significantly increased. The above advantageous effects are therefore not applied.

Although the most preferable temperature is shown to be 25 degreeC, this invention is not limited to this, It is known previously that the said temperature may vary according to embodiment.

By the subcooling pipe as described above, the condenser 20 may be slightly reduced in size. That is, because the condenser can be sufficiently condensed by the supercooled condenser, even if the condenser is slightly reduced, it is fully functionally supplemented. Therefore, a compact design is possible in consideration of this when designing a water purifier.

On the other hand, as shown in Figure 2 the cold water tank is located in the lower portion of the reservoir can be seen that the capillary tube 30 is wound in the reservoir between the subcooling pipe and the evaporator.

The evaporator 40 is configured to heat-exchange by winding around a cold water tank. In the case of the integrated cold water tank, the evaporator is located below the water tank as shown in FIG. 2. According to such a configuration, the capillary tube may be provided by winding it in a reservoir to be positioned directly under the supercooling pipe even when a separate installation space is not provided.

That is, in the present invention, the capillary tube can be installed even without providing a space for a separate capillary tube, it is possible to reduce the required space is to enable a compact design of the water purifier.

Meanwhile, the evaporator 40 allows heat exchange between the refrigerant and the cold water tank to generate cold water. In order to keep the temperature of the cold water tank at about 4.5 ° C, it is preferable that the refrigerant is selected to have a vaporization temperature of 4.5 ° C or less. Since such a kind of refrigerant does not affect the present invention, a more detailed description thereof will be omitted.

The present invention configured as described above operates as follows.

The refrigerant passes through the compressor 10 and is compressed to high temperature and high pressure, passes through the condenser 20, and the refrigerant of high temperature and high pressure exchanges heat with the surrounding atmosphere to be in a state of low temperature and high pressure. More specifically, the refrigerant has a temperature of about 45 ° C.

The refrigerant is heat-exchanged with the reservoir while passing through the supercooling pipe 25, and maintains the temperature of the reservoir at about 25 ° C.

The refrigerant passing through the subcooling pipe enters the capillary tube in a supercooled state, expands in the capillary tube 30 connected to the lower side of the subcooling pipe, and is made at a low temperature and low pressure so as to exchange heat with the purified water of the cold water tank in the evaporator 40. do.

As described above, the refrigerant exchanged with the purified water of the cold water tank is discharged to the compressor through a pipe in a vaporized state.

This configuration completes the cooling cycle. Each of the above components is connected through a pipe.

Although the preferred embodiments of the present invention have been described above with reference to the accompanying drawings, the scope of the present invention is not to be construed as limited to such embodiments and / or drawings, and is determined by the matters set forth in the claims below. do. In addition, it should be clearly understood that improvements, changes, modifications, and the like apparent to those skilled in the art described in the claims are included in the scope of the present invention.

10 compressor 20 condenser
25: supercooled piping 30: capillary tube
40: evaporator 50: reservoir
51: cold water tank 60: hot water tank
61: heater

Claims (7)

In the cold / hot water purifier including a filter, a water tank, a cold water tank, a heater, and a hot water tank,
compressor;
A condenser connected to the compressor through a pipe;
A capillary tube connected through the condenser and a pipe; And
And a cooling system including; an evaporator connected through the capillary tube and a pipe and connected to the compressor.
The pipe connecting the condenser and the capillary is extended, the cold water purifier comprising a subcooling pipe for heat exchange with the reservoir. The method of claim 1,
The supercooling pipe is wound to wrap around the reservoir to heat exchange;
Cold and hot water purifier The method of claim 2,
The capillary is cold winding water purifier located in the reservoir between the subcooling pipe and the evaporator. 4. The method according to any one of claims 1 to 3,
Cold water tank is integrally formed in the lower portion of the reservoir,
The lower portion of the reservoir includes a hot water pipe connected to the hot water tank is disconnected from the cold water tank,
Cold water purifier, characterized in that the water purification temperature in the water storage tank entering the hot water pipe by the heat exchange of the supercooling pipe and the reservoir is maintained above a certain temperature. The method of claim 4, wherein
The water purification temperature entering the hot water pipe is characterized in that 14 ℃ or more ~ 25 ℃ or less, cold and hot water purifier. 6. The method of claim 5,
And a purified water temperature entering the hot water pipe is at least higher than the inlet temperature of the cold water tank. 4. The method according to any one of claims 1 to 3,
The lower portion of the reservoir includes a hot water pipe connected to the hot water tank,
Cold water purifier, characterized in that the water purification temperature in the water storage tank entering the hot water pipe by the heat exchange of the supercooling pipe and the reservoir is maintained above a certain temperature.

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