KR101668216B1 - Apparatus for hot water direct supplying and Driving mathod thereof - Google Patents

Apparatus for hot water direct supplying and Driving mathod thereof Download PDF

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Publication number
KR101668216B1
KR101668216B1 KR1020160090672A KR20160090672A KR101668216B1 KR 101668216 B1 KR101668216 B1 KR 101668216B1 KR 1020160090672 A KR1020160090672 A KR 1020160090672A KR 20160090672 A KR20160090672 A KR 20160090672A KR 101668216 B1 KR101668216 B1 KR 101668216B1
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South Korea
Prior art keywords
hot water
temperature
stored
value
storage tank
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KR1020160090672A
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Korean (ko)
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이병교
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이병교
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D17/00—Domestic hot-water supply systems
    • F24D17/0089—Additional heating means, e.g. electric heated buffer tanks or electric continuous flow heaters, located close to the consumer, e.g. directly before the water taps in bathrooms, in domestic hot water lines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/10—Arrangement or mounting of control or safety devices
    • F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
    • F24D19/1051—Arrangement or mounting of control or safety devices for water heating systems for domestic hot water
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2220/00—Components of central heating installations excluding heat sources
    • F24D2220/02—Fluid distribution means
    • F24D2220/0235—Three-way-valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2220/00—Components of central heating installations excluding heat sources
    • F24D2220/04—Sensors
    • F24D2220/042—Temperature sensors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2220/00—Components of central heating installations excluding heat sources
    • F24D2220/08—Storage tanks

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

The present invention discloses a hot water supply apparatus. That is, the direct hot water supply apparatus and the driving method thereof according to the embodiment of the present invention rapidly provide hot water supplied from a boiler, thereby significantly reducing the amount of cold water discharged and consumed during hot water use waiting time, It is possible to minimize the inconvenience, discomfort and time wasted while waiting for the user to wait for hot water during the waiting time of hot water use.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a direct hot water supply apparatus and a driving method thereof,

The present invention relates to a hot water supply apparatus, and more particularly to a direct hot water supply apparatus for rapidly supplying hot water supplied from a boiler and a driving method thereof.

Generally, in the home, use washbasins and showers for washing, washing, shaving, washing, bathing and showering. At this time, hot water heated by the boiler is used. Due to the nature of the residence, the distance between the boiler room and the bathroom is somewhat remote.

Generally, when hot water is used, hot water heated in the boiler comes out only after the cold water which has been stagnated in the pipe connected to the washing machine or the shower to which hot water is discharged from the boiler is discharged. Typically, about 3 to 8 liters of water (cold water) that was stagnated in the pipe until hot water is used is discarded.

That is, waste water is wasted until hot water is used, thereby causing water loss. Further, there is a problem that petroleum resources such as gas (GAS) and oil (OIL) used for heating water in the boiler are consumed more than necessary.

In addition, the user may feel uncomfortable because cold water is emitted during the time it takes for hot water to be discharged. In this case, there is a problem that at least several minutes or more must be consumed until hot water is used. Especially in the winter, early spring, late autumn when the outside temperature is low, or when there is a child, the inconvenience is increased.

SUMMARY OF THE INVENTION The present invention has been made in order to solve these problems, and a first object of the present invention is to significantly reduce the amount of cold water discharged and consumed during hot water use waiting time.

The second purpose is to solve the problem of loss of heat energy while cooling the hot water of 3 ~ 8L staying in the tube after using hot water.

The third object of the present invention is to minimize the inconvenience, discomfort, and time wasted while the user waits for the hot water to come out during the hot water use waiting time.

In addition, the fourth object of the present invention is to contribute to the development of the industry by providing an opportunity to generate profits of companies engaged in the same business by taking part in national residence and living culture.

In order to achieve the above object, the present invention includes the following configuration.

That is, an apparatus for providing direct hot water according to an embodiment of the present invention includes: a first temperature sensor for sensing a temperature of stored hot water temporarily stored in a hot water storage tank; A hot water storage tank for automatically heating the stored hot water using a heater rod that provides a heat source when the first reference value is not satisfied; A heater controller for temporarily stopping the supply of the heat source of the heater rod when the temperature sensed value of the stored hot water reaches the first reference value; A second temperature sensor for sensing the temperature of the hot water being warmed or warmed by the boiler; When the temperature detection value of the hot water reaches the second reference value, the first hot water discharge direction is switched so that the stored hot water is supplied to the hot water discharge device, or the temperature detection value of the hot water reaches the second reference value A three-way valve for switching the second switching direction to the second flow direction so that the hot water is supplied to the hot water discharge device; And a controller for receiving the sensed value of the stored hot water and the sensed value of the hot water from the first and second temperature sensors, and when the temperature sensed value of the hot water is less than the second reference value, And a valve control unit for performing a second switching control of the three-way valve so that the hot water is directly supplied to the hot water discharge device when the temperature sensed value of the hot water is equal to or higher than a second reference value .

According to another aspect of the present invention, there is provided a method of driving a direct hot water supply apparatus, the method comprising: sensing a temperature of a stored hot water temporarily stored in a hot water storage tank by a first temperature sensor; Automatically heating the stored hot water using a heater rod that provides a heat source when the hot water storage tank is below a first reference value; Temporarily stopping supply of the heat source of the heater rod when the heater control unit reaches the first reference value of the temperature sensed value of the stored hot water; Sensing a temperature of the hot water being warmed or warmed by the boiler; The three-way valve continues the first switching operation so that the stored hot water is supplied to the hot water discharge device until the temperature sensed value of the hot water reaches the second reference value, or the temperature sensing value of the hot water is maintained at the second Converting the hot water to a second flow direction by a second switching conversion so that the hot water is supplied to the hot water discharge device when the reference value is reached; Wherein the valve control unit receives the sensed value of the stored hot water and the sensed value of the hot water from the first and second temperature sensors, and when the temperature sensed value of the hot water is less than the second reference value, The first switching control of the three-way valve to be supplied to the apparatus; And a second switching control of the three-way valve so that the hot water is directly supplied to the hot water discharge device if the temperature control value of the hot water is equal to or higher than a second reference value.

According to the present invention, hot water is discharged in a few seconds when hot water is used, so that the standby time for hot water can be remarkably reduced, and a first effect that unnecessary consumption of water in a pipe discharged before hot water is discharged can be reduced .

In addition, there is a second effect that it is possible to prevent the loss of energy while the hot water of 3 to 8 L staying in the tube is used after the hot water is used.

In addition, the third effect is that the user can minimize the inconvenience, discomfort, and time wasted while waiting for the hot water to come out during the hot water use waiting time. That is, it is possible to reduce the time and fuel cost required for hot water generation.

Further, the fourth effect is obtained that it is possible to provide a direct hot water supply apparatus which is easy to install without changing any piping structure in an existing shower apparatus, and which is highly utilized.

1 is a block diagram showing a configuration of a direct hot water supply apparatus according to an embodiment of the present invention;
FIG. 2 is an exemplary view showing a side view of a closed-loop hot water feedback unit according to an embodiment,
3 is an exemplary view showing a plane of the closed loop type hot water feedback means according to one embodiment,
4 is a view illustrating a case where a direct hot water supply device according to an embodiment of the present invention is connected to a shower;
FIG. 5 is an exemplary view showing a case where a direct hot water supply device according to an embodiment of the present invention is connected to a washstand;
6 is an exemplary view showing a horizontal direct hot water supply apparatus according to an embodiment of the present invention,
7 is an exemplary view showing a vertical direct hot water supply apparatus according to an embodiment of the present invention,
8 is an exemplary view showing an electrical structure of a direct hot water supply apparatus according to an embodiment,
9 is a flowchart illustrating a driving method of a direct hot water supply apparatus according to an embodiment.

It is noted that the technical terms used in the present invention are used only to describe specific embodiments and are not intended to limit the present invention. In addition, the technical terms used in the present invention should be construed in a sense generally understood by a person having ordinary skill in the art to which the present invention belongs, unless otherwise defined in the present invention, Should not be construed to mean, or be interpreted in an excessively reduced sense.

In addition, when a technical term used in the present invention is an erroneous technical term that does not accurately express the concept of the present invention, it should be understood that technical terms can be understood by those skilled in the art. In addition, the general terms used in the present invention should be interpreted according to a predefined or prior context, and should not be construed as being excessively reduced.

Furthermore, the singular expressions used in the present invention include plural expressions unless the context clearly dictates otherwise. In the present invention, terms such as "comprising" or "comprising" and the like should not be construed as encompassing various elements or stages of the invention, Or may further include additional components or steps.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like reference numerals refer to like or similar elements throughout the several views, and redundant description thereof will be omitted.

In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail. It is to be noted that the accompanying drawings are only for the purpose of facilitating understanding of the present invention, and should not be construed as limiting the scope of the present invention with reference to the accompanying drawings.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described with reference to the accompanying drawings.

1 is a block diagram showing a configuration of a direct hot water supply apparatus according to an embodiment of the present invention.

The hot water storage tank 210 includes a hot water storage tank 210, a first temperature sensor 214, a heater control unit 230, a second temperature sensor 220, a three-way valve 240 and a valve control unit 250 .

The hot water storage tank 210 has a heater rod 212 that provides a heat source. In one embodiment, the hot water storage tank 210 is implemented with a capacity capable of storing 3 to 8 L of water. The hot water storage tank 210 automatically heats the stored hot water using the heater rod 212 which provides a heat source until the stored hot water is heated to a predetermined temperature when the first reference value is not reached.

The heater rod 212 heats the stored hot water stored in the hot water storage tank 210 while being turned on / off under the control of the heater controller 230 to be described later. Therefore, hot water stored in the hot water storage tank 210 is always stored at a predetermined temperature or higher.

The first temperature sensor 214 senses the temperature of the stored hot water temporarily stored in the hot water storage tank 210. In one embodiment, the first temperature sensor 214 is implemented in one of a variety of water temperature meters.

The heater control unit 230 controls the operation of the heater rod 212 so that the temperature of the hot water stored in the hot water storage tank 210 can be maintained above a predetermined value. That is, when the temperature detection value of the stored hot water reaches the first reference value, provision of the heat source of the heater rod is temporarily stopped. Specifically, the heater control unit 230 controls ON / OFF of the heater rod 212 on the basis of one of the set values of 70 to 80 ° C.

When the temperature of the hot water stored in the hot water storage tank 210 is cooled and the temperature sensed by the first temperature sensor 214 falls below a predetermined set value, the heater rod 212 is driven to cool the hot water stored in the hot water storage tank 210 Heat is applied. When the temperature value of the stored hot water in the hot water storage tank 210 heated by the heater rod 212 reaches the set value, the operation of the heater rod 212 is stopped to stop the supply of the heat source.

The second temperature sensor 220 is disposed between the boiler 10 and the hot water storage tank 210 and senses the temperature of hot water flowing into the hot water storage tank 210 from the boiler 10. That is, the second temperature sensor 220 senses the temperature of the hot water heated or warmed by the boiler. In one embodiment, the second temperature sensor 220 is implemented in one of a variety of water temperature meters.

Way valve 240 allows the hot water stored in the hot water storage tank 210 to be supplied to the hot water discharge device 30 by flowing water or hot water from the boiler 10 into the hot water storage tank 210, The hot water discharged from the hot water discharge device 10 is directly supplied to the hot water discharge device 30.

Specifically, the three-way valve 240 is operated so that the stored hot water is supplied to the hot water discharge device 30 until the temperature sensed value of the hot water reaches the second reference value, When the sensed value reaches the second reference value, the hot water is supplied to the hot water discharge device (30) and the second switching conversion is performed to change the direction of the second flow path.

The valve control unit 250 controls the three-way valve 240 according to the temperature of the water sensed by the second temperature sensor 220. Way valve 240 so that the stored hot water stored in the hot water storage tank 210 is supplied to the hot water discharge device 30 when the temperature of the water sensed by the second temperature sensor 220 is less than a predetermined second reference value.

The valve control unit 250 receives the sensed value of the stored hot water and the sensed value of the hot water from the first and second temperature sensors 214 and 220 whenever the temperature sensed value of the hot water is less than the second reference value, Way valve 240 so that the hot water is directly supplied to the hot water discharge device 30 when the temperature sensed value of the hot water is equal to or higher than the second reference value, Switching control.

In one embodiment, when the temperature value of the hot water sensed by the second temperature sensor 220 reaches a set value of 40 to 50 ° C, the valve controller 250 controls the flow of the water, Way valve (240) so as to be supplied directly to the first valve (30).

If the temperature value of the hot water sensed by the second temperature sensor 220 is less than one set value of 40 to 50 degrees Celsius, the valve controller 250 controls the hot water storage device 210 The three-way valve 240 is controlled to be supplied with the three-way valve 240.

According to one aspect of the present invention, the direct hot water supply apparatus, when operating the hot water tap of the hot water discharge device (30), preheats the stored water by heating to a temperature above the reference temperature value in the hot water storage tank (210). Therefore, it is possible to provide hot water of a desired temperature in a few seconds when using hot water.

According to a further aspect of the present invention, the direct hot water supply device 20 further comprises vortex prevention means 216. [ The vortex prevention means 216 suppresses the generation of vapors when the cold water flows from the boiler 10 to the hot water storage tank 210 at a high speed. The vortex prevention means 216 has a plurality of through-holes 218 through which cold water is discharged to an inflow pipe for introducing cold water into the hot water storage tank 210.

The through hole 218 passes the stored hot water flowing into the hot water storage tank 210.

When the cold water flows into the hot water storage tank 210 from the boiler in a state where the hot water is stopped, friction occurs between the hot water that has been in a stopped state and the cold water that has flown into the hot water storage tank 210. Therefore, a vortex phenomenon occurs in which the water is swirling due to the frictional force due to the inertial force acting on the interface between the inflow cold water and the hot water which has been stopped in the tank.

It is possible to reduce the inflow water pressure of the cold water by introducing the cold water into the plurality of holes as compared with the case where the cold water flows into one hole, thereby preventing vortices from being generated in the hot water storage tank 210.

On the other hand, when a vortex phenomenon occurs in the hot water storage tank 210, the hot water and the cold water flowing in the tank are mixed with each other and the temperature of the water stored in the tank is lowered as a whole. According to the present invention, the vortex prevention means 216 introduces cold water into the plurality of inlets.

That is, the vortex phenomenon can be suppressed and the convection range of the cold water newly introduced into the tank can be reduced. It is preferable to position the vortex prevention means 216 and the heater rod 212 in close proximity in order to rapidly heat the incoming cold water.

According to a further aspect of the present invention, a direct hot water supply apparatus 20 according to an embodiment includes a body 400 and a first inlet 410, a second inlet, an outlet 440 and a separation wall 450, And a closed loop hot water supply means (40). In one embodiment, the closed loop hot water feedback means is embodied as a deformed S-nipple.

FIG. 2 is an exemplary view showing a side view of a closed loop type hot water feedback means according to one embodiment, and FIG. 3 is an exemplary view showing a plane of a closed loop type hot water feedback means according to an embodiment.

The first inlet 410 is disposed on one side of the main body 400 and receives hot water flowing from the boiler 10. In one embodiment, the first inlet 410 may be formed in the form of a screw-like projection so as to be connectable with the boiler 10 pipe.

When the hot water discharge device is not opened or closed, the second inlet port transfers hot water to the hot water storage tank 210 to generate hot water.

The discharge port 440 is disposed on the other surface of the main body 400 and supplies the hot water introduced from the first inlet 410 to the hot water discharge device 30 directly according to the second switching conversion of the three- The hot water stored in the hot water storage tank 210 during the first switching operation of the three-way valve 240 is bypassed to the hot water discharger 30.

The separation wall 450 is provided inside the main body 400 to discharge the hot water to the discharge port 440 or to discharge the hot water to the discharge port according to the first and second switching conversions of the three- 410 and the outlet 440 are separated from each other. In one embodiment, the separation wall 450 is preferably implemented as a corrosion resistant member.

By the closed loop type hot water feedback means 40 for separating and moving the flow path as described above, the flow path in which the water is introduced into or discharged from the hot water storage tank 210 is additionally provided in the path directly connected to the shower from the boiler . That is, even if no additional piping work or complicated design change is made, it is possible to easily realize this by adding the closed loop type hot water feedback means 40 to one end of the shower.

4 is a view illustrating a case where a direct hot water supply device according to an embodiment of the present invention is connected to a shower, FIG. 5 is a view illustrating a case where a direct hot water supply device according to an embodiment of the present invention is connected to a washstand Fig.

According to the conventional method, hot water heated in the boiler is supplied to the shower 30a through the hot water pipe. 4, according to the present invention, by adding the closed loop type hot water feedback means 40 to the existing hot water path, the water introduced from the boiler flows through the direct hot water supply device 20 into the shower 30a To be discharged to the outside. Therefore, it is easy to apply the direct hot water supply apparatus 20 according to the present invention without any additional piping work or complicated design change.

5, it is possible to connect the direct hot water supply apparatus 20 according to the present invention to the hot water moving path without any large structural additional change in the case of the washstand 30b.

FIG. 6 is an exemplary view showing a horizontal direct hot water supply apparatus according to an embodiment of the present invention, and FIG. 7 is an exemplary view showing a vertical direct hot water supply apparatus according to an embodiment of the present invention.

As shown, the direct hot water supply apparatus according to one embodiment can be variously modified in its form. 6 and 7, the heater rod 212 and the vortex prevention unit 216 having the discharge hole for the cold water introduced from the boiler are provided at the lower end of the hot water storage tank 210. [ The water outlet provided in the hot water discharge device (30) is provided at the upper end of the hot water storage tank (210).

The water heated by the heat source provided at the heater rod 212, that is, the water whose temperature has risen, moves toward the upper end of the tank due to the nature of the water whose density varies depending on the water temperature. Since hot water having a higher water temperature is moved toward the upper end portion in the hot water storage tank 210, the outlet of the water can be provided at the upper end to provide hot water more quickly.

At this time, the vortex prevention means 216 prevents the cold water flowing into the lower end of the tank from mixing with the hot water at the upper end by the vortex phenomenon. In other words, by minimizing eddy currents in the hot water storage tank, it is possible to prevent a full range of convection in the tank.

The cold water flowing into the hot water storage tank 210 from the boiler can be quickly heated around the heater rod 212, thereby improving the heat efficiency.

In addition, according to a characteristic aspect of the present invention, the hot water storage tank 210 is characterized in that the surface of the waterproof member or the heat insulating member 260 is coated with a coating so that the temperature of the storage temperature is maintained at a minimum temperature value of 30 to 40 degrees . The heat insulating member is implemented as a member having a low thermal conductivity and delays the loss of heat inside the hot water storage tank (210). In the hot water storage tank 210, hot water having a temperature equal to or higher than the set temperature is stored. By lowering the cooling speed of the stored hot water, the thermal efficiency of the heater rod 212 can be increased.

8 is an exemplary view showing an electrical structure of a direct hot water supply apparatus according to an embodiment.

As shown in the figure, in one embodiment, the driving power source is a 220V DC power source. The first sensor 214 and the heater rod 212 may be connected in series to the driving power source and the three-way valve 240 and the second temperature sensor 220 may be connected in series. However, the scope of the present invention is not limited thereto but is interpreted to encompass obvious variations.

9 is a flowchart illustrating a driving method of a direct hot water supply apparatus according to an embodiment.

First, the first temperature sensor senses the temperature of the stored hot water temporarily stored in the hot water storage tank (S800).

In step S820, the hot water storage tank automatically heats the hot water using a heater rod that provides a heat source when the first reference value is not reached (S810).

When the heater control unit reaches the first reference value (a), the provision of the heat source of the heater rod is temporarily stopped (S825).

At this time, when the heater control unit reaches the first reference value (a) indicating a set value of the stored hot water sensed by the first temperature sensor from 70 to 80 ° C, the provision of the heat source temporarily stops .

If the use of the hot water is sensed (S830), the second temperature sensor senses the temperature of the hot water heated or warmed by the boiler (S840). Wherein sensing the use of hot water may be for the user to operate the hot water faucet of the hot water discharge device.

Then, the three-way valve continues the first switching operation so that the stored hot water is supplied to the hot water discharge device until the temperature sensed value of the hot water reaches the second reference value (S860) (S870) The hot water is switched to the second flow direction by the second switching conversion so that the hot water is supplied to the hot water discharge device (S875). In other words, when the valve control unit reaches the first reference value indicating the set value of one of the temperature sensed value of the hot water sensed by the second temperature sensor to 40 to 50 캜, the hot water introduced from the boiler is directly supplied to the hot water discharge apparatus And a second switching conversion of the three-way valve so as to be supplied.

Specifically, the valve control unit receives the sensed value of the stored hot water and the sensed value of the hot water from the first and second temperature sensors, and when the temperature sensed value of the hot water is less than the second reference value, Way valve to the first switching control.

When the temperature control value of the hot water is equal to or higher than the second reference value (b), the valve control unit performs the second switching control so that the hot water is directly supplied to the hot water discharge device.

According to an aspect of the present invention, there is provided a method of operating a hot water generator, comprising the steps of: receiving hot water introduced from a boiler through a first inlet port on a first surface of a main body; And the hot water discharged from the first inlet is provided to the hot water discharge device in accordance with the second switching conversion of the three-way valve, or the hot water discharged from the first hot water storage tank A closed loop hot water feedback means including a step of bypassing the stored hot water to the hot water discharge device and a separating wall separating the first inlet and the outlet, and the hot water is discharged to the discharge port in accordance with the first and second switching conversions of the three- And discharging the stored hot water to the outlet.

Further, the hot water storage tank according to an embodiment further includes a step (S880) of suppressing vortex formation in the cabin by utilizing vortex prevention means including a plurality of through holes for passing the stored hot water flowing into the hot water storage tank do. That is, it inhibits vortex formation when cold water flows from the boiler to the hot water storage tank. The suppression of vortex formation is realized by forming a plurality of through-holes through which cold water is discharged to an inflow pipe for introducing cold water into the hot water storage tank.

When the cold water flows from the boiler at a high speed in a state where the hot water is stopped in the hot water storage tank, friction occurs between the hot water which is in the stopped state and the cold water which is in the stopped state. Therefore, a vortex phenomenon occurs in which the water is swirling due to the frictional force due to the inertial force acting on the interface between the inflow cold water and the hot water which has been stopped in the tank.

At this time, when the vortex phenomenon occurs, the temperature of the water stored in the tank is lowered as a result of the mixing of the hot water and the incoming cold water.

According to this aspect of the present invention, it is possible to prevent the cold water flowing into the lower end of the hot water storage tank from mixing with the hot water at the upper end by the vortex phenomenon. In other words, by minimizing eddy currents in the hot water storage tank, it is possible to prevent a full range of convection in the tank.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or essential characteristics thereof. Therefore, the embodiments disclosed in the present invention are not intended to limit the scope of the present invention but to limit the scope of the present invention. It is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

10: boiler 20: hot water supply device
30: hot water discharge device 210: hot water storage tank
212: heater rod 214: first temperature sensor
216: vortex prevention means 220: second temperature sensor
230: heater control unit 240: three-way valve
250: valve control unit 40: closed loop type hot water feedback means
260: thermal insulating member 30a: shower
30b: washbasin

Claims (11)

A direct hot water supply device connected to a boiler,
A first temperature sensor for sensing the temperature of the temporarily stored hot water in the hot water storage tank;
A hot water storage tank for automatically heating the stored hot water using a heater rod that provides a heat source when the first reference value is not satisfied;
A heater controller for temporarily stopping the supply of the heat source of the heater rod when the temperature sensed value of the stored hot water reaches the first reference value;
A second temperature sensor for sensing the temperature of the hot water being warmed or warmed by the boiler;
The first switching means may continue the first switching operation so that the stored hot water is supplied to the hot water discharge device until the temperature sensed value of the hot water reaches the second reference value, or if the temperature sensed value of the hot water reaches the second reference value A three-way valve for switching the second switching direction to the second flow direction so that the hot water is supplied to the hot water discharge device; And
Wherein the hot water discharge sensor receives the sensed value of the stored hot water and the sensed value of the hot water from the first and second temperature sensors, and when the temperature sensed value of the hot water is less than the second reference value, And a valve control section for performing a second switching control of the three-way valve so that the hot water is directly supplied to the hot water discharge device if the temperature sensed value of the hot water is equal to or higher than a second reference value, .
The method according to claim 1,
A first inlet disposed on one surface of the main body to receive the hot water introduced from the boiler;
A second inlet for transferring the hot water to the hot water storage tank to generate the hot water when the hot water discharge device is opened or closed;
The hot water supply apparatus according to any one of claims 1 to 3, further comprising: a hot water supply unit (20) disposed on the other surface of the main body, for supplying hot water introduced from the first inlet to the hot water discharge unit An outlet for bypassing the stored hot water temporarily stored in the hot water discharge device; And
And a separating wall for separating the first inlet and the outlet from each other, exposing the hot water to the outlet in accordance with the first and second switching conversions of the three-way valve or sending out the stored hot water to the outlet, Further comprising: a water heater for heating the hot water.
The hot water storage tank according to claim 1,
Further comprising vortex prevention means having a plurality of through-holes through which the stored hot water flowing into the hot water storage tank passes, in order to suppress vortex formation in the hot water storage tank.
2. The apparatus according to claim 1,
And the heater rod is automatically switched on when the temperature sensed value of the stored hot water sensed by the first temperature sensor is lower than the first reference value indicating any set value of 70 to 80 ° C To the hot water supply device.
The valve control apparatus according to claim 1,
When the temperature sensing value of the hot water sensed by the second temperature sensor reaches the second reference value indicating one of the set values of 40 to 50 ° C, the hot water introduced from the boiler is directly supplied to the hot water discharge device And the third switching valve is switched to the second switching valve so that the third switching valve is switched to the second switching valve.
The hot water storage tank according to claim 1,
And the temperature of the stored hot water is kept at a minimum temperature value of 30 to 40 degrees.
A driving method of a direct hot water supply apparatus connected to a boiler,
Sensing a temperature of the stored hot water temporarily stored in the hot water storage tank by the first temperature sensor;
Automatically heating the stored hot water using a heater rod that provides a heat source when the hot water storage tank is below a first reference value;
Temporarily stopping supply of the heat source of the heater rod when the heater control unit reaches the first reference value of the temperature sensed value of the stored hot water;
Sensing a temperature of the hot water being warmed or warmed by the boiler;
The three-way valve continues the first switching operation so that the stored hot water is supplied to the hot water discharge device until the temperature sensed value of the hot water reaches the second reference value, or the temperature sensing value of the hot water is maintained at the second reference value Switching the second flow path to the second flow direction so that the hot water is supplied to the hot water discharge device;
Wherein the valve control unit receives the sensed value of the stored hot water and the sensed value of the hot water from the first and second temperature sensors, and when the temperature sensed value of the hot water is less than the second reference value, The first switching control of the three-way valve to be supplied to the apparatus; And
And a second switching control of the three-way valve so that the hot water is directly supplied to the hot water discharge device if the temperature control value of the hot water is equal to or higher than a second reference value.
8. The method of claim 7,
The first inlet being disposed on one side of the main body to receive the hot water introduced from the boiler;
Transferring the hot water to the hot water storage tank to generate the hot water when the second inlet opens or closes the hot water discharge device;
And an outlet port is disposed on the other surface of the main body so as to directly supply the hot water introduced from the first inlet to the hot water discharge device in accordance with the second switching conversion of the three- Bypassing the stored hot water temporarily stored in the tank to the hot water discharge device; And
A closed loop type hot water feedback means including a separating wall for separating the first inlet and the discharge port exposes the hot water to the discharge port according to the first and second switching conversions of the three-way valve or to discharge the stored hot water to the discharge port Further comprising the step of:
The hot water storage tank according to claim 7,
Further comprising the step of suppressing the formation of vapors in the hot water storage tank by utilizing the vortex prevention means including a plurality of through holes through which the stored hot water flowing into the hot water storage tank passes, .
8. The apparatus according to claim 7,
When the temperature sensing value of the stored hot water sensed by the first temperature sensor reaches the first reference value, which is a set value of any one of 70 to 80 DEG C, temporarily stopping the supply of the heat source of the heater rod Wherein the direct hot water supply device comprises:
8. The valve control apparatus according to claim 7,
When the temperature sensing value of the hot water sensed by the second temperature sensor reaches the second reference value indicating one of the set values of 40 to 50 ° C, the hot water introduced from the boiler is directly supplied to the hot water discharge device Further comprising the step of performing a second switching conversion of the three-way valve so that the three-way valve is switched.
KR1020160090672A 2016-07-18 2016-07-18 Apparatus for hot water direct supplying and Driving mathod thereof KR101668216B1 (en)

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KR102176153B1 (en) * 2020-02-10 2020-11-09 이병교 Direct hot water control device and drive method of the Same

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