KR101934484B1 - Control device of the cool water purifier and method thereof - Google Patents

Abstract

Disclosed is a dual pipe cold / cold water generator control system including a double pipe comprising an inner pipe through which cold water flows and an outer pipe through which the coolant flows, and a cooling module for cooling the coolant. The controller of the dual pipe cold water purifier may further include an evaporator temperature sensing unit for sensing a refrigerant temperature of the evaporator; An ambient temperature sensing unit for sensing an ambient temperature; A driving unit for driving the cooling module; A memory for storing a cooling time corresponding to the ambient temperature; A timer for checking time; And receives the coolant temperature and the ambient temperature, and controls the drive unit for cooling during a cooling time corresponding to the ambient temperature. In this embodiment of the present invention, the water in the cold water generating pipe is not frozen, and the cooling system including the condenser is efficiently operated, so that energy can be saved.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a control device for a double pipe cold water purifier,

The present invention relates to a control apparatus and method for a dual pipe cold water purifier, and more particularly, to a control apparatus and method for a dual pipe cold water purifier that controls the cold water temperature of a cold water purifier using an instantaneous cooling method using a dual pipe.

In general, water is a very important material in people's lives. The awareness of the importance of water remains unchanged, and over time, the importance of water is increasing day by day due to environmental pollution and lack of water resources.

As a result, in order to consume clean water, households and businesses use tap water directly or boil down a lot of cases, and the use of bottled water or cold /

As the ratio of water in the human body is more than 70% for adults and more than 90% for fetuses, human beings can not live without water and fresh water is necessary for survival, vitality recovery and thirst relief. Various types of cold water purifiers have been developed and widely used.

In recent years, the type of cold water generator that is most commonly used is a vertical standing type, and a cold water heater is provided at the middle portion thereof. When the operation handle located at the rear or top of the tap is pushed or pulled, It is a drinking structure. In this modified form, there is a form in which an outflow button is provided in the vicinity of each outflow port, or a hot water outlet is outflowed in order to press the button and the handle together. In addition, there are various methods of purifying water, and a variety of water purification methods have been applied, such as using a filter, combining with an ion device, or passing water through a natural material beneficial to the human body.

In recent years, double-tube ice-cold type water purifiers have become popular.

In addition, there is a problem that it is difficult to accurately control the temperature in the cold water generating tube because the water temperature change in the cold water generating pipe due to outflow at the time of heading is irregular.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide an apparatus and method for preventing the evaporator from reaching a temperature lower than 0 ° C, The control of double pipe cold water purifier which can detect the evaporator temperature which is directly connected with the measurement and the temperature of the evaporator, Apparatus and method.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the conventional problems, and it is an object of the present invention to provide an air conditioner in which the ambient temperature sensor does not have a deviation of more than 2 degrees from the temperature around the cold water heater and the cold water heater, The present invention provides an apparatus and method for controlling a double pipe cold water generator which efficiently operates a cooling system including an actual condenser and saves energy by ensuring an efficient cooling operation according to detailed external conditions (thermal load) .

In order to solve the above-mentioned problems, according to an aspect of the present invention,

And a cooling module for cooling the refrigerant and a double pipe including an inner tube through which cold water flows and an outer tube through which the refrigerant flows, the control device comprising:

An inlet or outlet temperature sensor of the evaporator is installed along the refrigerant flow direction inside the evaporator by a fixing bracket to directly detect the refrigerant temperature;

An ambient temperature sensing unit for sensing an ambient temperature of the cold water generator at a position where the temperature deviation between the cold water heater and the cold water heater is not more than 2 degrees;

A driving unit for driving the cooling module;

A memory for storing a cooling time at which the evaporator temperature reaches 0 degrees Celsius in accordance with the ambient temperature condition;

A timer for checking a cooling time at which the evaporator temperature reaches 0 degrees Celsius in accordance with the ambient temperature condition;

And a control unit for receiving the refrigerant temperature detected by the evaporator temperature sensing unit and the ambient temperature sensed by the ambient temperature sensing unit and controlling the driving unit during a cooling time corresponding to the ambient temperature.

Wherein the controller controls the driving unit to stop the cooling operation when the refrigerant temperature of the evaporator is maintained at 0 degree Celsius or less for a predetermined time or longer due to the difference in the heat intrusion load caused by the ambient temperature.

According to an aspect of the present invention, there is provided a method for controlling a dual-

1. A control method for a dual-pipe cold-service water purifier comprising a double pipe composed of an inner pipe through which cold water flows and an outer pipe through which an coolant flows, and a cooling module for cooling the coolant,

Receiving a refrigerant temperature sensed by the controller directly by the inlet or outlet temperature sensor of the evaporator mounted in the evaporator in the refrigerant flow direction by the fixing bracket, respectively;

Receiving the ambient temperature of the cold water calorifier at a position where the control unit senses the ambient temperature of the cold water calorifier at a position where the deviation of the temperature between the cold water heater and the cold water heater is not more than 2 degrees;

And the control unit controls the driving unit to perform a cooling operation for a cooling time period in which the evaporator temperature reaches 0 degrees Celsius in accordance with the ambient temperature condition.

The method comprises:

Determining whether the refrigerant temperature of the evaporator is maintained at 0 degree Celsius or lower for a predetermined time or longer due to a difference in heat intrusion load due to the ambient temperature;

The controller may control the driving unit to stop the cooling operation when the temperature of the refrigerant of the evaporator is maintained at 0 ° C or lower for a predetermined time.

According to another aspect of the present invention, there is provided an apparatus for controlling a dual-

And a cooling module for cooling the refrigerant and a dual tube composed of an inner tube through which cold water flows and an outer tube through which the refrigerant flows,

An inlet or outlet temperature sensor of the evaporator is mounted along the flow direction inside the evaporator by the fixing bracket, respectively, to directly detect the refrigerant temperature;

A cold water temperature sensing unit for sensing the temperature of the cold water flowing through the inner pipe without leakage;

A driving unit for driving the cooling module;

A memory for storing a cooling time at which the evaporator temperature reaches 0 degrees Celsius according to the cold water temperature condition;

A timer for checking a cooling time at which the evaporator temperature reaches 0 degrees Celsius in accordance with the ambient temperature condition;

And a controller for receiving the refrigerant temperature sensed by the evaporator temperature sensing unit and the cold water temperature sensed by the cold water temperature sensing unit and controlling the driving unit during the cooling time corresponding to the cold water temperature.

Wherein the controller controls the driving unit to stop the cooling operation when the refrigerant temperature of the evaporator is maintained at 0 degree Celsius or less for a predetermined time or longer due to the difference in the heat intrusion load caused by the cold water temperature.

In the embodiment of the present invention, it is possible to provide an apparatus and method for controlling a double pipe cold water purifier that prevents water in a cold water generating pipe from freezing.

In addition, in the embodiment of the present invention, it is possible to provide an apparatus and method for controlling a double pipe cold water generator that efficiently operates a cooling system including a condenser to save energy.

In addition, in the embodiment of the present invention, when the temperature is controlled in the water in the actual double tube or the temperature in the cooling cycle, the operation is controlled in an insulated state for the purpose of heat transfer (prevention of condensation) So that unnecessary cooling time is added or an excessive cooling time occurs. As a result, freezing may occur and water intake may not be performed. This problem can be solved by using the ambient temperature sensing unit 120.

That is, in the embodiment of the present invention, the actual water temperature of the ambient temperature sensor or the actual drinking water pipe installed outside the cold water heater is accurately measured so as to precisely prevent the evaporator temperature from reaching below 0 ° C, Provided is a control device and method of a double pipe cold water purifier capable of directly detecting the evaporator temperature and ensuring efficient cooling operation in detail according to the ambient temperature to improve the energy efficiency and preventing water leakage due to prevention of freezing .

FIG. 1 is a configuration diagram of a control device for a dual pipe cold water purifier according to a first embodiment of the present invention.
2 is a view showing an external example of a double pipe cold water purifier according to the first embodiment of the present invention.
3 is a view showing an example of information stored in a memory of a controller for a dual pipe cold / cold water generator according to a first embodiment of the present invention.
4 is a flowchart illustrating a method of controlling a double pipe cold water purifier according to a first embodiment of the present invention.
5 is a block diagram of a controller for a dual pipe cold / cold water purifier according to a second embodiment of the present invention.
6 is a diagram showing an example of information stored in a memory of the controller of the dual pipe cold / water purifier according to the second embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when an element is referred to as " comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise.

FIG. 1 is a configuration diagram of a control device for a dual pipe cold water purifier according to a first embodiment of the present invention.

2 is a view showing an external example of a double pipe cold water purifier according to the first embodiment of the present invention.

3 is a view showing an example of information stored in a memory of a controller for a dual pipe cold / cold water generator according to a first embodiment of the present invention.

Referring to FIGS. 1 to 3, the controller for a dual-pipe cold-water heater according to the first embodiment of the present invention includes a double pipe including an inner pipe through which cold water flows and an outer pipe through which the coolant flows, and a cooling module for cooling the coolant And includes a temperature detector 110, an ambient temperature sensor 120, a driver 160, a memory 140, a timer 150, and a controller 130.

The evaporator temperature sensing unit 110 senses the refrigerant temperature of the evaporator.

The ambient temperature sensing unit 120 senses the temperature around the evaporator.

The driving unit 160 drives the cooling module 170 to condense the gas of the evaporator into a liquid.

The memory 140 stores the cooling time corresponding to the ambient temperature.

The timer 150 checks the time, and can know the flow of time.

The controller 130 receives the coolant temperature and the ambient temperature, and controls the drive unit 160 to cool the coolant during a cooling time corresponding to the ambient temperature. The control unit 130 controls the driving unit 160 to stop the cooling operation when the refrigerant temperature of the evaporator is maintained at 0 ° C or lower for a predetermined time or more.

The temperature sensor of the evaporator temperature sensing unit 110 is disposed on the outer surface of the refrigerant inlet and the refrigerant outlet of the evaporator 171. By this arrangement, the temperature sensors 114 and 113 respectively measure the temperature of the refrigerant inlet and the temperature of the refrigerant outlet. The degree of cooling of the cold water can be controlled by the temperature measurement.

Referring to FIG. 2, the cooling module 170 includes an evaporator 171, a compressor 172, a condenser 173, and the like.

In the dual pipe type evaporator 171, cold water and refrigerant are supplied and mutually exchanged heat to cool the cold water by the refrigerant. The evaporator 171 may have a shape that is rotationally laminated so as to have a certain space in the center.

The cold water supplied to the evaporator 171 is received by the evaporator 171 through the inlet portion, cooled by the refrigerant, and then discharged from the evaporator 171 through the outlet portion.

The compressor 172 compresses the gaseous refrigerant supplied from the evaporator 171 and changes the phase of the refrigerant to a high-temperature, high-pressure liquid state.

The condenser 173 dissipates the high heat contained in the refrigerant passing through the compressor 172 to the outside and condenses the compressed refrigerant. The condenser 173 may further include a condensing fan for radiating high heat.

Further, the expansion device may phase-change the condensed refrigerant to a low temperature and a low pressure, and the coolant may be supplied to the evaporator 171 by the above process.

The refrigerant supplied to the evaporator 171 is heat-exchanged with the drinking water and then supplied to the compressor 172.

According to an embodiment of the present invention, in the evaporator 171, the water inlet and the water outlet are located at the upper and lower portions, respectively, so that the drinking water can flow in a certain direction.

On the other hand, in the evaporator 171, the refrigerant can flow in the direction from the refrigerant inlet to the refrigerant outlet. In this case, the drinking water and the refrigerant flow in opposite directions in the evaporator (171).

When the drinking water and the refrigerant flow in opposite directions to each other, heat exchange efficiency between the drinking water and the refrigerant can be maximized.

In the embodiment of the present invention, unlike the cold water storage type cooling module, the cold water is instantaneously generated by using the double tube type evaporator 171, so that the operation rate of the cooling module 170 is minimized, , It is possible to continuously generate cold water at a predetermined temperature or lower and to prevent contamination of drinking water caused by contamination of the cold water storage tank.

The evaporator temperature sensing unit 110 includes an evaporator inlet temperature sensor 114 and an evaporator outlet temperature sensor 113. The evaporator inlet temperature sensor 114 and the evaporator outlet temperature sensor 113 can be mounted inside the evaporator 171 by the fixing brackets 111 and 112, respectively.

The evaporator 171 has a tube through which cold water flows and an outer tube through which the refrigerant flows.

3 is a diagram illustrating an example of storing a cooling time corresponding to an ambient temperature stored in a memory.

Referring to FIG. 3, the cooling time for an ambient temperature range is shown.

Here, the ambient temperature sensing unit 120 may be constituted by a sensor, and two conditions must be secured.

Select the location where the deviation does not exceed 2 degrees according to the first actual ambient temperature and section.

Secondly, there should be no significant influence on the flow of outside air. The most important purpose of controlling the operation specification according to the ambient temperature sensor is to secure the efficient cooling operation according to the external condition (heat load) because the heat load changes according to the ambient temperature.

In case of controlling the temperature in the water or the cooling cycle inside the double tube, it is insulated for the purpose of heat transfer (prevention of dew condensation) and the operation control time according to the actual ambient temperature or water temperature is not efficiently performed. The cooling time is added or excessive cooling may occur and the water may not be collected. In the present invention, the ambient temperature sensing unit 120 is used to solve this problem.

An example of obtaining the cooling time to be stored in the memory 140 is as follows.

First, the time at which the temperature of the evaporator 171 reaches 0 deg. C is experimentally confirmed according to the ambient temperature condition. An optimal mounting position in which the temperature deviation does not exceed 2 degrees is experimentally secured in the ambient temperature sensing unit 120 for controlling the cold water heater.

Experimentally confirm the time at which the evaporator (171) reaches 0 ° C for generating cold water after installing the ambient temperature sensor at the corresponding position. These conditions are secured for each ambient temperature interval, and the operation control program is set.

To prevent freezing of the drinking water pipe, set the ambient temperature according to the ambient temperature (ex: A condition: 10 ° ≤ ≤ Te <13 ° C 3 minutes, B condition: 13 ° C ≤ ≤ Te < If the ambient temperature sensor is 13.5 ° C, the operation time is controlled according to the B condition. However, if the actual ambient temperature is 12.5 ° C, the temperature of the evaporator 171 reaches less than 0 ° C due to the difference in ambient heat input load If the temperature of the evaporator (171) is less than 0 degree, the temperature of the evaporator (171) is 30 seconds or more.

A control method of the double pipe cold water purifier according to the first embodiment of the present invention having such a configuration will now be described.

4 is a flowchart illustrating a method of controlling a double pipe cold water purifier according to a first embodiment of the present invention.

Referring to FIG. 4, the evaporator temperature sensing unit 110 senses the refrigerant temperature of the evaporator 171 and outputs the sensed temperature.

Also, the ambient temperature sensing unit 120 senses the temperature around the evaporator 171 and outputs the sensed temperature (S400).

Then, the controller 130 receives the refrigerant temperature and the ambient temperature of the evaporator 171 (S410).

Next, the controller 130 determines whether the refrigerant temperature of the evaporator 171 is maintained at 0 degree Celsius or lower for a predetermined time (S420).

The control unit 130 controls the driving unit 160 to stop the cooling operation in step S430 if the refrigerant temperature of the evaporator 171 is maintained at 0 degree or less for 30 seconds or more.

If the refrigerant temperature of the evaporator 171 does not exceed 0 degrees Celsius for more than 30 seconds, the control unit 130 refers to the memory 140 to determine whether the cooling time corresponding to the ambient temperature has been reached ). At this time, the controller 130 refers to the timer 150 to check the time. Here, 30 seconds represents the time for cold water to freeze and can be changed as needed.

If the cooling time has not been reached, the control unit 130 controls the driving unit 160 to cool it.

At this time, the driving unit 160 drives the cooling module to condense the gas of the evaporator 171 into liquid to continue the cooling operation (S450). In addition, the evaporator 171 performs the cooling operation while converting the refrigerant liquid into the gas.

The first embodiment of the present invention can be variously modified, and the second embodiment will be described below.

FIG. 5 is a configuration diagram of a control device for a dual pipe cold iser according to a second embodiment of the present invention, and FIG. 6 is a view for explaining a method of controlling the dual pipe cold iswaterer control device according to the second embodiment of the present invention. Fig.

Referring to FIG. 5, the control apparatus for a double pipe cold water purifier according to the second embodiment of the present invention includes a double pipe including an inner pipe through which cold water flows and an outer pipe through which the coolant flows, and a cooling module 170 for cooling the coolant. A cold water temperature sensing unit 121, a driving unit 160, a memory 140, a timer 150, and a controller 130. The control unit 130 controls the operation of the dual pipe cold /

The evaporator temperature sensing unit 110 senses the refrigerant temperature of the evaporator 171.

The cold water temperature sensing unit 121 senses the temperature of the cold water.

The driving unit 160 drives the cooling module to condense the gas of the evaporator 171 into a liquid.

The memory 140 stores the cooling time corresponding to the cold water temperature.

The timer 150 checks the time, and can know the flow of time.

The controller 130 receives the coolant temperature and the coolant temperature, and controls the drive unit 160 to cool the coolant during a cooling time corresponding to the coolant temperature. The control unit 130 controls the driving unit 160 to stop the cooling operation when the refrigerant temperature of the evaporator 171 is maintained at 0 ° C or lower for 30 seconds or more.

This second embodiment is almost similar to the first embodiment, except that the cold water temperature is sensed instead of the ambient temperature and used for cooling control.

6 is a diagram illustrating an example of storing the cooling time corresponding to the cold water temperature stored in the memory.

Referring to Figure 6, the cooling time over a range of cold water temperatures is shown.

The cooling time may vary depending on the components of the cold water heater or other conditions, and it is preferable to store the cooling time in the memory 140 after finding the optimum cooling time by the experiment.

Experimentally confirm the time at which the temperature of the evaporator (171) reaches zero according to the water temperature in the drinking water pipe. The cold water temperature sensor mounting part of the cold water temperature sensing part 121 for controlling the cold water handler is designed so as not to leak the water and the time when the water temperature of the drinking water reaches 0 degree is experimentally confirmed .

In the water temperature condition of various drinking water pipes (ex. 10 ° C, 13 ° C ...), the time for the temperature of the evaporator (171) to reach 0 ° C is measured experimentally for each SET and the operation control program is set.

Water temperature control according to the water temperature of the drinking water pipe to prevent freezing of the drinking water pipe SET (ex: A condition: 10 degrees ≤ Tw <13 degrees control time 3 minutes, condition B: 13 degrees ≤ Tw < If the water temperature of the drinking water pipe is 12.5 degrees Celsius, the temperature of the evaporator 171 is less than 0 degree due to the load difference. (Ex: Evaporator temperature is less than 0 degree and 30 seconds or more.) It is stopped immediately without stopping the cooling operation for 5 minutes which is the set time, and enters the idle mode.

In the embodiment of the present invention, water in the cold water generating pipe can be prevented from freezing.

Further, in the embodiment of the present invention, the cooling system including the condenser can be efficiently operated to save energy.

The embodiments of the present invention described above are not only implemented by the apparatus and method but may be implemented through a program for realizing the function corresponding to the configuration of the embodiment of the present invention or a recording medium on which the program is recorded, The embodiments can be easily implemented by those skilled in the art from the description of the embodiments described above.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, It belongs to the scope of right.

Claims (2)

And a cooling module for cooling the refrigerant and a double pipe including an inner tube through which cold water flows and an outer tube through which the refrigerant flows, the control device comprising:
An inlet or outlet temperature sensor of the evaporator is installed along the refrigerant flow direction inside the evaporator by a fixing bracket to directly detect the refrigerant temperature;
An ambient temperature sensing unit for sensing an ambient temperature of the cold water generator at a position where the temperature deviation between the cold water heater and the cold water heater is not more than 2 degrees;
A driving unit for driving the cooling module;
A memory for storing a cooling time at which the evaporator temperature reaches 0 degrees Celsius in accordance with the ambient temperature condition;
A timer for checking a cooling time at which the evaporator temperature reaches 0 degrees Celsius in accordance with the ambient temperature condition;
And a control unit for receiving the refrigerant temperature sensed by the evaporator temperature sensing unit and the ambient temperature sensed by the ambient temperature sensing unit and controlling the driving unit for the cooling time corresponding to the ambient temperature,
Wherein the control unit controls the driving unit to stop the cooling operation when the refrigerant temperature of the evaporator is maintained at 0 degree Celsius or less for a predetermined time or longer due to the difference in the heat intrusion load due to the ambient temperature, Lt; / RTI &gt; 1. A control method for a dual-pipe cold-service water purifier comprising a double pipe composed of an inner pipe through which cold water flows and an outer pipe through which an coolant flows, and a cooling module for cooling the coolant,
Receiving a refrigerant temperature sensed by the controller directly by the inlet or outlet temperature sensor of the evaporator mounted in the evaporator in the refrigerant flow direction by the fixing bracket, respectively;
Receiving the ambient temperature of the cold water generator at a position where the variation of the temperature around the cold water heater and the cold water heater is not more than 2 degrees;
The control unit controlling the driving unit to perform a cooling operation during a cooling time in which the evaporator temperature reaches 0 degrees Celsius according to the ambient temperature condition,
Determining whether the refrigerant temperature of the evaporator is maintained at 0 degree Celsius or lower for a predetermined time or longer due to a difference in heat intrusion load due to the ambient temperature;
Wherein the control unit controls the driving unit to stop the cooling operation when the temperature of the refrigerant of the evaporator is maintained at 0 ° C or lower for a predetermined period of time.

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