KR101867521B1 - Water saving device of instantaneous boiler - Google Patents

Water saving device of instantaneous boiler Download PDF

Info

Publication number
KR101867521B1
KR101867521B1 KR1020150175623A KR20150175623A KR101867521B1 KR 101867521 B1 KR101867521 B1 KR 101867521B1 KR 1020150175623 A KR1020150175623 A KR 1020150175623A KR 20150175623 A KR20150175623 A KR 20150175623A KR 101867521 B1 KR101867521 B1 KR 101867521B1
Authority
KR
South Korea
Prior art keywords
water
hot water
temperature
pipe
faucet
Prior art date
Application number
KR1020150175623A
Other languages
Korean (ko)
Other versions
KR20170068763A (en
Inventor
이돈형
전성희
유연한
최기태
양현준
이가은
이원석
황명진
Original Assignee
롯데알미늄 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 롯데알미늄 주식회사 filed Critical 롯데알미늄 주식회사
Priority to KR1020150175623A priority Critical patent/KR101867521B1/en
Publication of KR20170068763A publication Critical patent/KR20170068763A/en
Application granted granted Critical
Publication of KR101867521B1 publication Critical patent/KR101867521B1/en

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/20—Arrangement or mounting of control or safety devices
    • F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
    • 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
    • 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
    • F24D17/0078—Recirculation systems
    • 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

Landscapes

  • 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

When the hot water is used, the hot water temperature in the pipe is detected. If the temperature is below a certain temperature, the water is returned through the water pump and the hot water is heated to provide the hot water at a certain temperature. The present invention relates to a water saving apparatus and method for a simple boiler, and more particularly, Detecting the hot water temperature of the piping connected to the faucet when the water flow switch is operated; Comparing the hot water temperature of the detected pipe with a reference temperature set to maintain a constant hot water temperature to the user; Turning on the water return valve for hot water return when the hot water temperature of the detected pipe is lower than the reference temperature; Turning the water pump on and driving the hot water heat exchanger to raise the hot water temperature in the pipe to the reference temperature; And a step of opening the solenoid valve of the pipe if the hot water temperature of the detected pipe is higher than the reference temperature, thereby providing hot water through the faucet, thereby implementing a water saving method of the instant boiler.

Description

Water saving device of instantaneous boiler

More particularly, the present invention relates to water saving of a simple boiler, and more particularly, it relates to a water boiler which detects hot water temperature in a pipe when hot water is used and, if the temperature is lower than a predetermined temperature, The present invention relates to a water saving device of a simple boiler for preventing water waste caused by flowing water of a temperature.

Generally, a domestic boiler is used to supply hot water while providing heating of a house, and various types of boilers are being developed depending on the type of fuel and the type of burner.

Among these boilers, the net boiler operates the boiler instantly whenever the user uses the hot water, instantly warming the running water (tap water) to provide hot water. At this time, when the initial hot water is used, low temperature water is output from the boiler, the shower, and the faucet. Therefore, the user drains low-temperature water flowing in the early stage of using hot water, and then uses heated hot water.

This causes wasted waste of cold water at the beginning of hot water use. In order to prevent such waste of water, conventional technologies such as the following Patent Document 1 and Patent Document 2 have been proposed.

As shown in FIG. 1, the conventional technology disclosed in Patent Document 1 is a hot water heat exchanger in which heating circulation water is discharged to a heating pipe 50 in a room and hot water in which hot water is discharged by exchanging cold water introduced through a water pipe A boiler provided with a heat exchanger 20 is provided with a storage tank 60 for storing low temperature direct water supplied to the hot water heat exchanger 20 and a main heat exchanger The hot water circulation unit 70 circulates hot water discharged from the storage tank 60 to heat the hot water of the storage tank 60. And the water passing through the storage tank 60 and passing through the hot water heat exchanger 20 is again discharged through the storage tank 60.

The storage tank 60 is connected to one side of the cold water storage unit 61 and is connected to the hot water heat exchanger 20 to store the low temperature cold water, And a hot water storage unit 62 for storing the elevated water.

With this configuration, it is possible to minimize the consumption of fuel for hot water storage, prevent the low temperature water from being continuously discharged during the initial use of the hot water, quickly release the hot water at the normal temperature, In addition, when the hot water discharge is temporarily stopped and then reused, hot water having a small temperature deviation is stably discharged, thereby maximizing the utilization of the hot water by the boiler.

The prior art disclosed in Patent Document 2 includes a boiler for supplying hot water by exchanging water flowing through a water line through a heat exchanger; A supply pipe provided with a power supply for supplying hot water heated through the boiler; A solenoid valve connected between the end of the supply pipe and the power receiver to open and close the supply pipe; A circulation pipe whose one end is connected to the solenoid valve and the other end is connected to the direct pipe; A temperature sensor installed on the path of the circulation pipe so as to sense the temperature of the water which is branched from the supply pipe and flows through the circulation pipe; A circulation pump installed on the path of the circulation pipe and adapted to allow water flowing into the circulation pipe to flow back to the circulation pipe via the direct water pipe and the boiler; And a solenoid valve that is electrically connected to the solenoid valve, the temperature sensor, and the circulation pump, receives the temperature value of the water sensed by the temperature sensor and operates the circulation pump in a state where the solenoid valve is closed when the temperature value is lower than a set reference value, The controller controls the supplied water to circulate the circulation pipe, and when the temperature is equal to or higher than the set reference value, opens the solenoid valve and stops the operation of the circulation pump to supply the hot water through the power reception.

With this arrangement, when the faucet is operated to use hot water in a kitchen or bathroom of a home, the cold water inside the pipe connected between the boiler and the faucet is supplied through the faucet as it is, Prevent waste of water that has been thrown away and save energy.

Korean Registered Patent No. 10-0993832 (Registered on Nov. 5, 2010) (Name of invention: hot water boiler of instant boiler) Korean Registered Patent No. 10-0757381 (Registered on September 4, 2007) (Name of invention: Water saving system of hot water boiler)

However, the above conventional techniques have a disadvantage in that the hot water temperature supplied to the user is not constant.

For example, when the actual hot water is used, the boiler is normally operated and the hot water temperature supplied through heating is different from the hot water temperature circulated through the circulation pump, have.

Accordingly, the present invention has been proposed in order to solve all the problems occurring in the related art as described above. The present invention detects hot water temperature in a pipe when using hot water, and if the temperature is below a certain temperature, The present invention provides a water saving device of a simple boiler that can prevent water from being wasted by flowing water having a low temperature when the initial hot water is used.

Another object of the present invention is to provide a water-saving boiler water-saving device capable of always supplying water of the same temperature to a user by keeping the water temperature in the pipe at a constant temperature by returning the water in the pipe through a water- .

In order to accomplish the above object, the water saving device of the instant boiler according to the present invention comprises a water flow switch incorporated in a faucet and sensing an operating state of a faucet; A temperature sensing unit for sensing a temperature of hot water in a pipe for supplying hot water to the faucet; A controller for comparing the hot water temperature in the pipe detected by the temperature sensor with a preset reference temperature and controlling the hot water temperature in the pipe to be heated or hot water according to a result of the temperature comparison; A solenoid valve for allowing hot water in the piping to flow out through the faucer under the control of the controller; A water return valve circulating the hot water in the pipe to the water return side; A circulation pump for returning hot water circulated through the water return valve under control of the control unit and storing the water in a storage tank; And a hot water heat exchanger for heating the hot water to be returned to the storage tank to maintain the hot water in the pipe at a predetermined temperature.

The temperature sensing unit includes a plurality of water temperature sensors that detect the temperature of the hot water in a pipe connected to each of the faucets when the faucet has a plurality of faucets.

The solenoid valve is provided corresponding to the number of faucets.

Further, the water saving device of the instant boiler according to the present invention is characterized by further comprising a plurality of solenoid valves installed in the pipeline between the faucet and the faucet to supply or block hot water.

In order to accomplish the above object, the present invention provides a water saving method of a simple boiler comprising the steps of: (a) confirming whether a water flow switch incorporated in a faucet is operating; (b) detecting the hot water temperature of the piping connected to the faucet when the water flow switch is operated; (c) comparing the hot water temperature of the detected pipe with a reference temperature set to maintain a constant hot water temperature to the user; (d) turning on the water return valve for hot water return when the hot water temperature of the detected pipe is lower than the reference temperature as a result of the comparison in the step (c); (e) after the step (d), the water pump is turned on and the hot water heat exchanger is driven to raise the hot water temperature in the pipe to the reference temperature; (f) if the hot water temperature of the detected pipe is higher than the reference temperature, opening the solenoid valve of the pipe and providing hot water through the faucet.

In the above step (a), when there are a plurality of factions, the operation states of the float switches incorporated in the faults are confirmed.

According to the present invention, when hot water is used, the temperature of hot water in the pipe is detected. If the temperature is below a predetermined temperature, the water is returned through a water pump and rapidly heated to provide hot water at a predetermined temperature. It is possible to prevent waste and realize water saving.

According to the present invention, there is also an advantage that the water temperature in the pipe is always maintained at a constant temperature, and hot water of the same temperature can always be supplied to the user.

1 is a schematic view of a conventional domestic boiler,
FIG. 2 is a configuration diagram of a water saving device of a net boiler according to the present invention,
FIG. 3 is a flowchart illustrating a water saving method of a net boiler according to the present invention.

Hereinafter, a water saving device and method of a simple boiler according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

≪ Example 1 >

2 is a configuration diagram of a water saving device of a net boiler according to a preferred embodiment of the present invention.

As shown in FIG. 2, when the hot water is opened for the first time, hot water having a normal temperature is discharged in a short time, and hot water having a small variation in temperature is stably discharged even when hot water is temporarily shut off and reused A hot water heat exchanger 20 for heating the low temperature direct water supplied from the outside to discharge the hot water, a hot water heat exchanger 10 for circulating high temperature hot water discharged from the main heat exchanger 10, Way valve 30 for selectively supplying the heat to the heat exchanger 20 and the heating pipe 50, and a circulation motor 40 for performing forced circulation of the heating water.

In addition, there is provided a storage tank 60 for temporarily storing low-temperature direct water flowing through a normal water pipe or the like, and a hot water circulation heating the low-temperature direct water by heat exchange of the heated water inside the storage tank 60 A portion 70 is provided.

The main heat exchanger 10 is connected to the burner of the boiler so that the heating water is heated by the heat generated when the fuel is burned and the heating water heated in the main heat exchanger 10 is heated by the hot water heat exchanger 20, Or the heating pipe (50).

At this time, the heating pipe 50 is disposed in a room to perform a heating function, and the hot water heat exchanger 20 is disposed inside the boiler and is disposed at a low temperature of direct water supplied through an external water pipe Is heated with heat exchange with the heating water so that the use of the hot water can be performed.

In addition, on the heating water inflow pipe of the hot water heat exchanger 20, high-temperature heating water discharged from the main heat exchanger 10 during heating operation flows to the heating pipe 50, and when the hot water is used, Way valve (30) for allowing the heating water to flow to the hot water heat exchanger (20) so as to enable optimum use of the heating water. In addition, by providing a conventional circulation motor (40) for generating a forced flow of heating water on the pipe through which the heating water flows, continuous heat exchange can be performed while the heating water flows smoothly and smoothly.

The storage tank 60 temporarily stores low-temperature direct water flowing into the boiler through a water pipe. The storage tank 60 is formed of a conventional water tank for storing water of about 5 L or less, and a main heat exchanger And a hot water circulation unit 70 for allowing heat exchange with the low temperature direct water while the high temperature heating water discharged from the storage tank 10 flows, so that the low temperature direct water stored in the storage tank 60 is heated to a predetermined temperature.

The storage tank 60 is connected to a cold water storage unit 61 and a cold water storage unit 61. The cold water storage unit 61 stores low temperature direct water flowing in the water pipe, A hot water storage unit 62 for warming the low temperature direct water through the hot water heat exchanger 20 and then temporarily storing the hot water in the storage tank 60 through a faucet or the like is provided.

The hot water circulation unit 70 is provided with an inlet 711 and an outlet 712 for introducing and discharging high temperature heating water discharged from the main heat exchanger 10 to the outer surface of the storage tank 60, Shaped cold water preheating tube 71 for allowing heat exchange between the hot water of high temperature flowing through the inlet 711 and the cold water of low temperature flowing in the cold water storage part 61, Closing valve 713 for opening and closing the inflow of the heating water to the front side so that the circulation of the unnecessary heating water is blocked after the cold water stored in the cold water storage part 61 rises to a predetermined temperature.

Accordingly, when the hot water is not used, the low-temperature direct water stored in the storage tank 60 is heat-exchanged with the heating water, and is kept heated to a predetermined temperature. When the hot water is used, , The burner is operated to heat the heating water of the main heat exchanger 10 and the hot water stored in the cold water storage part 61 during the time when the heated heating water is supplied to the hot water heat exchanger 20 and exchanges heat with the low temperature direct water, And is discharged through the faucet through the heat exchanger (20), so that hot water can be used quickly.

A hot water preheating pipe 72 is disposed inside the hot water storage unit 62 to heat the hot water to prevent the temperature of the hot water stored in the hot water storage unit 62 from being lowered, Respectively.

Accordingly, the temperature of the hot water discharged from the hot water storage unit 62 can be kept constant at all times, so that the temperature variation of the hot water discharged from the boiler is further reduced, and the temperature of the hot water is more accurately adjusted and controlled It becomes possible.

In this case, the hot water preheating pipe (72) is preferably formed as a separate pipe from the cold water preheating pipe (71) for accurate control of the hot water temperature, but may be formed as a pipe integrally with the cold water preheating pipe (71) It is also preferable that the water is simultaneously exchanged with the low-temperature direct water stored in the cold water storage 61 and the high-temperature direct water stored in the hot water reservoir 62.

The construction and operation of the boiler are the same as those of the conventional boiler disclosed in FIG.

The present invention relates to a general household type boiler having the above-described water flow switches 131 to 133 built in the faucets 141 to 143 for sensing the operation state of the faucets 141 to 143; Temperature sensing units 91 to 93 for detecting the temperature of the hot water in the piping for supplying hot water to the faucets 141 to 143; The control unit 100 compares the hot water temperature detected by the temperature sensing units 91 through 93 with a preset reference temperature and controls the hot water temperature in the pipe to be heated or the hot water supplied according to the temperature comparison result ); Solenoid valves (126 to 128) for discharging hot water in the piping to the faucets (141 to 143) under the control of the controller (100); Water return valves (121 to 123) for circulating the hot water in the pipe to the water return side; A circulation pump 110 for collecting hot water circulated through the water return valves 121 to 123 under the control of the controller 100 and storing the water in the storage tank 60; And a hot water heat exchanger (20) for heating the hot water to be returned to the storage tank (110) to maintain the hot water in the pipe at a constant temperature.

In addition, the water saving device of the instant boiler according to the present invention includes a plurality of solenoid valves 124 to 125 which are installed in a pipeline between a power reception and a power reception to supply or block hot water.

Here, it is assumed that the present invention uses only three faucets. Accordingly, only three temperature sensing units 91 to 93 are shown, and only three solenoid valves 126 to 128 are shown correspondingly. However, The number of the temperature sensing units and the number of the solenoid valves can be freely reduced or increased according to the number of receptacles, as will be apparent to those skilled in the art.

Preferably, the temperature sensing units 19 to 93 use a water temperature sensor for sensing the hot water temperature. When there are a plurality of faucets, it is preferable to implement a plurality of water temperature sensors for detecting the temperature of the hot water in the piping connected to each faucet.

The operation of the water saving device of the instantaneous boiler according to the present invention will be described in detail as follows.

First, the plurality of water return valves 121 to 123, the solenoid valves 126 to 128, and the solenoid valves 124 to 125 are kept in the off state without using the hot water.

If the user uses the hot water by using a specific faucet in such a state, the controller 100 senses the hot water, measures the hot water temperature of the pipe connected to the faucet, and if the measured hot water temperature is below the reference temperature, By supplying the hot water after instantly heating the hot water, the user can always use the hot water at a constant temperature regardless of the user's use of the hot water at any point.

Hereinafter, the operation will be described in detail.

For example, when the user operates the water receptacle 141 in an open state by using the water receptacle 141 to use the hot water, the water flow switch 131 incorporated in the water receptacle 141 operates, (141) is in an open state. That is, the user informs the user that the hot water is used by using the faucet 141. The water flow switch 131 is connected to the water receiving unit 141 so that the contact is released when the user operates the water receiving unit 141 in the open state. When the user operates the water receiving unit 141 in the closed state, And informs the control unit 100 of the presence /

The control unit 100 measures the hot water temperature of the corresponding pipe through the temperature sensing unit 91 that senses the hot water temperature of the pipe connected to the particular faucet 141 when the specific faucet 141 is operated in the open state . Then, the predetermined reference temperature is compared with the predetermined temperature for supplying hot water of the same temperature to the measured hot water temperature in the corresponding pipe. Next, if the measured hot water temperature is lower than the reference temperature as a result of comparing the measured hot water temperature with the reference temperature, the water return valve 121 and the water return pump 110 are opened. At this time, the solenoid valves 126 to 128, the solenoid valves 124 and 125, and the water return valves 122 and 123 are all off.

The hot water, which is returned through the water return valve 121, is transferred to the storage tank 60 through the water return pump 110. The hot water transferred to the storage tank 60 is heated through the visible hot water heat exchanger 20 and supplied again to the piping of the faucet 141 through the storage tank 60.

The temperature sensing unit 91 continuously measures the hot water temperature while the water flow switch 131 is in the on state and transmits the measured hot water temperature to the control unit 100 in real time. Compare the temperatures. When the measured hot water temperature becomes equal to or higher than the reference temperature as a result of the comparison, the solenoid valve 126 is opened so that the heated hot water is discharged to the outside through the water receiver 141. At this time, the solenoid valves 127 to 128, the solenoid valves 124 and 125, and the water return valves 122 and 123 are all kept in the off state.

This allows the user to immediately use hot water of the same temperature at any time.

Next, when the user operates the water receptacle 142 in an open state by using the water receptacle 142 to use hot water, the water flow switch 132 built in the water receptacle 142 operates to control the controller 100 And notifies that the faucet 142 is in the open state. That is, the user will be informed of the use of hot water using the faucet 142. The water flow switch 132 is connected to the water receiving unit 142 so that the contact is released when the user operates the water receiving unit 142 in the open state and contacts the water receiving unit 142 when the user operates the water receiving unit 142 in the closed state, And informs the control unit 100 of the presence /

The control unit 100 opens the solenoid valve 124 when the specific faucet 142 is operated in the open state, that is, when the hot water is used, and then detects the hot water temperature of the pipe connected to the faucet 142, The temperature of the hot water of the pipe is measured through the pipe 92. Then, the predetermined reference temperature is compared with the predetermined temperature for supplying hot water of the same temperature to the measured hot water temperature in the corresponding pipe. Next, when the measured hot water temperature is compared with the reference temperature, if the hot water temperature is lower than the reference temperature, the water return valve 122 and the water return pump 110 are opened. At this time, the solenoid valves 126 to 128, the solenoid valve 125, and the water return valves 121 and 123 are all off.

The hot water, which is returned through the water return valve 122, is transferred to the storage tank 60 through the water return pump 110. The hot water transferred to the storage tank 60 is again heated through the hot water heat exchanger 20 and supplied again to the piping of the faucet 141 through the storage tank 60.

The temperature sensing unit 92 continuously measures the hot water temperature while the water flow switch 132 is in an on state and transmits the measured hot water temperature to the control unit 100 in real time. Compare the temperatures. When the measured hot water temperature becomes equal to or higher than the reference temperature as a result of the comparison, the solenoid valve 127 is opened so that the heated hot water is discharged to the outside through the water receiver 142. At this time, the solenoid valves 126 and 128, the electromagnetic valve 125, and the water return valves 121 and 123 are all kept in the off state.

This allows the user to immediately use hot water of the same temperature at any time.

When the user operates the water receptacle 143 in an open state to use the hot water using the water receptacle 143, the water flow switch 133 incorporated in the water receptacle 143 operates, (143) is in an open state. That is, the user informs the user of using the hot water using the faucet 143. The water flow switch 133 is connected to the water receiving unit 143 so that the contact is released when the user operates the water receiving unit 143 in the open state. When the user operates the water receiving unit 143 in the closed state, And informs the control unit 100 of the presence /

The control unit 100 opens the solenoid valves 124 and 125 when the specific faucet 143 is operated in the open state, that is, when it is detected that the hot water is used, And the temperature of the hot water of the pipe is measured through the sensing part (93). Then, the predetermined reference temperature is compared with the predetermined temperature for supplying hot water of the same temperature to the measured hot water temperature in the corresponding pipe. Next, if the measured hot water temperature is lower than the reference temperature as a result of comparing the measured hot water temperature with the reference temperature, the water return valve 123 and the water return pump 110 are opened. At this time, the solenoid valves 126 to 128 and the water return valves 121 and 122 are all off.

The hot water, which is returned through the water return valve 123, is transferred to the storage tank 60 through the water return pump 110. The hot water transferred to the storage tank 60 is again heated through the hot water heat exchanger 20 and supplied again to the piping of the faucet 143 through the storage tank 60.

The temperature sensing unit 93 continuously measures the hot water temperature while the water flow switch 133 is in an on state and transmits the measured hot water temperature to the control unit 100 in real time. Compare the temperatures. When the measured hot water temperature becomes equal to or higher than the reference temperature as a result of the comparison, the solenoid valve 128 is opened to allow the heated hot water to be discharged to the outside through the water receiver 143. At this time, the solenoid valves 126 and 127 and the water return valves 121 and 122 are all kept in the off state.

This allows the user to immediately use hot water of the same temperature at any time.

Meanwhile, when the user operates the water faucets 141 to 143 in an open state to use hot water using all the water faucets 141 to 143, the water flow switches 131 to 133 built in the water faucets 141 to 143 And notifies the control unit 100 that the water faults 141 to 143 are in an open state. That is, the user informs the user of the use of the hot water using the faucets 141 to 143. The water flow switches 131 to 133 are connected to the respective water faults 141 to 143 so that when the user operates the water faults 141 to 143 in the open state, the contact is released, And informs the control unit 100 of whether or not the user uses the hot water.

The control unit 100 opens the solenoid valves 124 and 125 when the specific faults 141 to 143 are detected to be in the open state and then the hot water is used and then the hot water temperature of the pipe connected to the faucets 141 to 143 The temperature of the hot water of the pipe is measured through the temperature sensing units 91 to 93 for sensing the temperature of the pipe. Thereafter, the predetermined reference temperatures are respectively compared with the hot water temperature in the pipe concerned and the hot water at the same temperature for the user. Next, when the measured hot water temperature and the reference temperature are compared with each other, the water return valve 123 and the water return pump 110 are opened when the hot water temperature is lower than the reference temperature. At this time, the solenoid valves 126 to 128 and the water return valves 121 and 122 are all off.

The hot water, which is returned through the water return valve 123, is transferred to the storage tank 60 through the water return pump 110. The hot water transferred to the storage tank 60 is again heated through the hot water heat exchanger 20 and supplied again to the piping of the faucets 141 to 143 through the storage tank 60.

The temperature sensing units 91 to 93 continuously measure the hot water temperature while the water flow switches 131 to 133 are in the ON state and transmit the measured temperature to the control unit 100 in real time, Compare the hot water temperature with the reference temperature. As a result of the comparison, when the measured hot water temperature is equal to or higher than the reference temperature, the solenoid valves 126 to 128 are opened to allow the hot water to be discharged to the outside through the faucets 141 to 143. At this time, the water return valves 121 and 122 are all kept in the off state.

This allows the user to always use the hot water of the same temperature at any time, regardless of which faucet is used.

≪ Example 2 >

FIG. 3 is a flowchart showing a water saving method of a net boiler according to the present invention, wherein S represents a step.

The method for saving water in a net boiler according to the present invention comprises the steps of: (a) confirming whether a water flow switch incorporated in a faucet is operating (S10); (b) detecting the hot water temperature of the pipe connected to the faucet when the water flow switch is operated (S20); (c) comparing the hot water temperature of the detected pipe with a reference temperature set to maintain a constant hot water temperature to the user (S30); (d) turning on the water return valve for hot water return if the hot water temperature of the detected pipe is lower than the reference temperature as a result of the comparison in the step (c) (S40); (e) after the step (d), the step of turning on the water return pump and driving the hot water heat exchanger to raise the hot water temperature in the pipe to the reference temperature (S50 to S60); (f) if the hot water temperature of the detected pipe is higher than the reference temperature, opening the solenoid valve of the pipe and providing hot water through the faucet (S70 to S80).

The operation of the water saving method of the instant boiler according to the present invention will be described in detail as follows.

First, the plurality of water return valves 121 to 123, the solenoid valves 126 to 128, and the solenoid valves 124 to 125 are kept in the off state without using the hot water.

If the user uses the hot water by using a specific faucet in such a state, the controller 100 senses the hot water, measures the hot water temperature of the pipe connected to the faucet, and if the measured hot water temperature is below the reference temperature, By supplying the hot water after instantly heating the hot water, the user can always use the hot water at a constant temperature regardless of the user's use of the hot water at any point.

Hereinafter, the operation will be described in detail.

For example, if the user operates the faucet 141 in an open state to use hot water using the faucet 141 as in step S10, the faucet switch 131 built in the faucet 141 operates to control the controller 100 that the power reception 141 is in an open state. That is, the user informs the user that the hot water is used by using the faucet 141. The water flow switch 131 is connected to the water receiving unit 141 so that the contact is released when the user operates the water receiving unit 141 in the open state. When the user operates the water receiving unit 141 in the closed state, And informs the control unit 100 of the presence /

The control unit 100 determines whether or not the specific faucet 141 is operated in the open state, that is, if it is recognized that the hot water is used, the controller 100 controls the hot water temperature of the corresponding pipe through the temperature sensing unit 91 that senses the hot water temperature of the pipe connected to the faucet, . Then, in step S30, the preset reference temperature is compared with the preset hot water temperature to supply hot water of the same temperature to the user.

Next, when the measured hot water temperature is compared with the reference temperature, if the hot water temperature is lower than the reference temperature, the flow returns to step S40 to open the water return valve 121 and the water return pump 110. [ At this time, the solenoid valves 126 to 128, the solenoid valves 124 and 125, and the water return valves 122 and 123 are all off.

In step S50, the hot water, which is returned through the water return valve 121, is transferred to the storage tank 60 through the water return pump 110. [ The hot water transferred to the storage tank 60 in step S60 is again heated through the hot water heat exchanger 20 and supplied again to the piping of the faucet 141 through the storage tank 60. [

The temperature sensing unit 91 continuously measures the hot water temperature while the water flow switch 131 is in the on state and transmits the measured hot water temperature to the control unit 100 in real time. Compare the temperatures. If the measured hot water temperature is equal to or higher than the reference temperature, the solenoid valve 126 is opened in steps S70 and S80 so that the heated hot water is discharged to the outside through the water receptacle 141. [ At this time, the solenoid valves 127 to 128, the solenoid valves 124 and 125, and the water return valves 122 and 123 are all kept in the off state.

This allows the user to immediately use hot water of the same temperature at any time.

Next, when the user operates the water receiver 142 in the open state to use the hot water using the water receiver 142 in step S10, the water flow switch 132 built in the water receiver 142 operates to control the controller 100 that the power reception 142 is in an open state. That is, the user will be informed of the use of hot water using the faucet 142. The water flow switch 132 is connected to the water receiving unit 142 so that the contact is released when the user operates the water receiving unit 142 in the open state and contacts the water receiving unit 142 when the user operates the water receiving unit 142 in the closed state, And informs the control unit 100 of the presence /

The control unit 100 opens the solenoid valve 124 in step S20 and then detects the hot water temperature of the pipe connected to the water faucet 142 if the specific water faucet 142 is operated in the open state And the temperature of the hot water of the pipe is measured through the temperature sensing unit 92.

Thereafter, the preset reference temperature is compared with the preset hot water temperature to supply hot water of the same temperature to the user, which is measured in step S30. Next, when the measured hot water temperature is compared with the reference temperature, if the hot water temperature is lower than the reference temperature, the flow returns to step S40 to open the water return valve 122 and the water return pump 110. At this time, the solenoid valves 126 to 128, the solenoid valve 125, and the water return valves 121 and 123 are all off.

In step S50, hot water, which is returned through the water return valve 122, is transferred to the storage tank 60 through the water return pump 110. [ The hot water transferred to the storage tank 60 in step S60 is again heated through the hot water heat exchanger 20 and supplied again to the piping of the faucet 141 through the storage tank 60. [

The temperature sensing unit 92 continuously measures the hot water temperature while the water flow switch 132 is in an on state and transmits the measured hot water temperature to the control unit 100 in real time. Compare the temperatures. If the measured hot water temperature is equal to or higher than the reference temperature as a result of the comparison, the solenoid valve 127 is opened in steps S70 and S80 so that the heated hot water is discharged to the outside through the water receptacle 142. [ At this time, the solenoid valves 126 and 128, the electromagnetic valve 125, and the water return valves 121 and 123 are all kept in the off state.

This allows the user to immediately use hot water of the same temperature at any time.

When the user operates the water receiver 143 in an open state to use hot water by using the water receiver 143 in step S10, the water flow switch 133 incorporated in the water receiver 143 operates to control the controller 100 ) That the power reception 143 is in an open state. That is, the user informs the user of using the hot water using the faucet 143. The water flow switch 133 is connected to the water receiving unit 143 so that the contact is released when the user operates the water receiving unit 143 in the open state. When the user operates the water receiving unit 143 in the closed state, And informs the control unit 100 of the presence /

The control unit 100 opens the solenoid valves 124 and 125 when the specific faucet 143 is operated in the open state, that is, when the hot water is used, and then the hot water temperature of the pipe connected to the faucet 143 And the temperature of the hot water of the pipe is measured through the temperature sensing unit 93 for sensing. Thereafter, the preset reference temperature is compared with the preset hot water temperature to supply hot water of the same temperature to the user, which is measured in step S30. Next, when the measured hot water temperature is compared with the reference temperature, if the hot water temperature is lower than the reference temperature, the water return valve 123 and the water return pump 110 are opened in step S40. At this time, the solenoid valves 126 to 128 and the water return valves 121 and 122 are all off.

In step S50, the hot water, which is returned through the water return valve 123, is transferred to the storage tank 60 through the water return pump 110. [ The hot water transferred to the storage tank 60 in step S60 is again heated through the hot water heat exchanger 20 and supplied again to the piping of the power reception 143 through the storage tank 60. [

The temperature sensing unit 93 continuously measures the hot water temperature while the water flow switch 133 is in an on state and transmits the measured hot water temperature to the control unit 100 in real time. Compare the temperatures. If the measured hot water temperature is higher than the reference temperature as a result of the comparison, the solenoid valve 128 is opened in steps S70 and S80 so that the heated hot water is discharged to the outside through the water receiver 143. At this time, the solenoid valves 126 and 127 and the water return valves 121 and 122 are all kept in the off state.

This allows the user to immediately use hot water of the same temperature at any time.

On the other hand, when the user operates the water faucets 141 to 143 in the open state by using all of the water faucets 141 to 143 in step S10 to use hot water, the water flow switches 131 to 143, 133 are all operated to inform the control unit 100 that the water faults 141 to 143 are in an open state. That is, the user informs the user of the use of the hot water using the faucets 141 to 143. The water flow switches 131 to 133 are connected to the respective water faults 141 to 143 so that when the user operates the water faults 141 to 143 in the open state, the contact is released, And informs the control unit 100 of whether or not the user uses the hot water.

The controller 100 opens the solenoid valves 124 and 125 in step S20 when the specific faucets 141 to 143 are operated in the open state, The hot water temperature of the corresponding pipe is measured through the temperature sensing units 91 to 93 for sensing the hot water temperature of the pipe.

Thereafter, the preset reference temperatures for supplying the hot water temperature in the pipe measured in step S30 and the hot water always the same temperature to the user are compared with each other. Next, when the measured hot water temperature and the reference temperature are compared with each other, if the hot water temperature is lower than the reference temperature, the flow returns to step S40 to open the water return valve 123 and the water return pump 110. At this time, the solenoid valves 126 to 128 and the water return valves 121 and 122 are all off.

In step S50, the hot water, which is returned through the water return valve 123, is transferred to the storage tank 60 through the water return pump 110. [ The hot water transferred to the storage tank 60 in step S60 is again heated through the hot water heat exchanger 20 and supplied again to the piping of the faucets 141 to 143 through the storage tank 60. [

The temperature sensing units 91 to 93 continuously measure the hot water temperature while the water flow switches 131 to 133 are in the ON state and transmit the measured temperature to the control unit 100 in real time, Compare the hot water temperature with the reference temperature. If the measured hot water temperature is equal to or higher than the reference temperature, the solenoid valves 126 to 128 are opened in steps S70 and S80 so that the heated hot water is discharged to the outside through the faucets 141 to 143. At this time, the water return valves 121 and 122 are all kept in the off state.

This allows the user to always use the hot water of the same temperature at any time, regardless of which faucet is used.

Although the present invention has been described in detail with reference to the above embodiments, it is needless to say that the present invention is not limited to the above-described embodiments, and various modifications may be made without departing from the spirit of the present invention.

The present invention is applied to a technique for immediately using hot water at a constant temperature when using hot water in a domestic net boiler.

10: main heat exchanger
20: Hot water heat exchanger
60: Storage tank
91 to 93: Temperature sensing unit
100:
110: return pump
121 ~ 123: Water return valve
124, 125: Solenoid valve
126 to 128: Solenoid valve
131 to 133: Water flow switch
141 ~ 143: Faucet

Claims (7)

As a water saving device of a net boiler,
A water flow switch incorporated in each of a plurality of faults and detecting an operation state of the faucet;
A plurality of temperature sensing units for sensing temperature of hot water in a plurality of pipes for supplying hot water to the plurality of faults, respectively;
The hot water temperature sensed by the temperature sensing unit for sensing the hot water temperature of the pipe connected to the water receptacle for operating the specific water flow switch among the plurality of temperature sensing units is compared with a preset reference temperature, A control unit for controlling to heat the hot water temperature in the pipe or to supply hot water;
A solenoid valve for taking out the hot water in the piping connected to the faucet under the control of the control unit to the faucet;
A water return valve for selectively circulating hot water in the piping connected to the water supply to the water return side;
A circulation pump for returning hot water selectively circulated through a water return valve under control of the control unit and storing the water in a storage tank; And
And a hot water heat exchanger for heating the hot water to be returned to the storage tank to maintain the hot water in the plurality of pipes at a constant temperature,
Wherein when the hot water is not used, the low-temperature direct water stored in the storage tank is heat-exchanged with the heating water to maintain the heated state at a predetermined temperature.
The temperature sensing unit may include a plurality of water temperature sensors that detect the temperature of the hot water in the piping connected to the respective faucets when the faucet uses a water temperature sensor for sensing the hot water temperature, Saving device of snack boiler.
The water saving device of the instant boiler according to claim 1, wherein the solenoid valve is provided corresponding to the number of faucets.
The water saving device of the instant boiler according to claim 1, further comprising a plurality of solenoid valves installed in a pipeline between the water supply and the water supply to supply or block hot water.
The water saving device according to claim 1, wherein the water flow switch is built in each of the faucets when the faucet has a plurality of faucets.



delete delete
KR1020150175623A 2015-12-10 2015-12-10 Water saving device of instantaneous boiler KR101867521B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150175623A KR101867521B1 (en) 2015-12-10 2015-12-10 Water saving device of instantaneous boiler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150175623A KR101867521B1 (en) 2015-12-10 2015-12-10 Water saving device of instantaneous boiler

Publications (2)

Publication Number Publication Date
KR20170068763A KR20170068763A (en) 2017-06-20
KR101867521B1 true KR101867521B1 (en) 2018-06-15

Family

ID=59281565

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150175623A KR101867521B1 (en) 2015-12-10 2015-12-10 Water saving device of instantaneous boiler

Country Status (1)

Country Link
KR (1) KR101867521B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102527692B1 (en) * 2018-02-13 2023-05-02 쿠쿠홈시스 주식회사 Warm water supply controlling apparatus
CN110469902A (en) * 2018-05-10 2019-11-19 廖承波 A kind of energy conservation return water system and energy saving water return method
KR102312524B1 (en) * 2019-10-28 2021-10-14 최성열 Water saving type hot water circulation system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3898382B2 (en) * 1999-07-05 2007-03-28 高木産業株式会社 Water-saving unit and water-saving hot water supply / memorial system
KR100757381B1 (en) * 2006-03-13 2007-09-11 김영희 Water saving system of hot water boiler
JP2012237486A (en) * 2011-05-11 2012-12-06 Lixil Corp Hot and cold water usage management system
KR101525097B1 (en) * 2013-11-29 2015-06-11 이누리 cold and hot water supplying system
CN107355985A (en) * 2017-05-20 2017-11-17 安徽红叶节能电器科技有限公司 A kind of heat pump water-heating machine device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100940256B1 (en) * 2008-04-23 2010-02-04 현대건설주식회사 A boiler discharging cold water and mixid water by the thermo valve to large number of water outlet and warm water supply system of the instantaneous heater
KR100993832B1 (en) 2008-07-01 2010-11-12 롯데알미늄 주식회사 hot water preheating apparatus of a boiler

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3898382B2 (en) * 1999-07-05 2007-03-28 高木産業株式会社 Water-saving unit and water-saving hot water supply / memorial system
KR100757381B1 (en) * 2006-03-13 2007-09-11 김영희 Water saving system of hot water boiler
JP2012237486A (en) * 2011-05-11 2012-12-06 Lixil Corp Hot and cold water usage management system
KR101525097B1 (en) * 2013-11-29 2015-06-11 이누리 cold and hot water supplying system
CN107355985A (en) * 2017-05-20 2017-11-17 安徽红叶节能电器科技有限公司 A kind of heat pump water-heating machine device

Also Published As

Publication number Publication date
KR20170068763A (en) 2017-06-20

Similar Documents

Publication Publication Date Title
JP5200842B2 (en) Water heater
US12025322B2 (en) Integrated recirculation pump for non-condensing water heater
KR101867521B1 (en) Water saving device of instantaneous boiler
KR100993832B1 (en) hot water preheating apparatus of a boiler
CN108895672A (en) Gas wall-mounted furnace
KR20150092160A (en) Heat pump heat supply system
JP5133773B2 (en) Water heater
US11262084B2 (en) Heated water availability control
JP2017194203A (en) Heat storage system
JP5200578B2 (en) Water heater
JP5115294B2 (en) Water heater
JP5903540B2 (en) Water heater
JP4379385B2 (en) Water heater
JP5438535B2 (en) Hot water storage water heater
KR101797646B1 (en) Hot water proportional control device to the season of the instantaneous boiler and method thereof
JP4867282B2 (en) Water heater
JP6303845B2 (en) Hot water storage water heater
JP2004226011A (en) Storage type water heater
JP6036560B2 (en) Hot water storage water heater
KR101506872B1 (en) Regenerative boiler having a external pump
KR102559942B1 (en) Apparatus for supplying hot water and heating
JP2019184116A (en) Water heater
JP2018132231A (en) Water heater
JP2018091568A (en) Hot water supply system
JP2015072098A (en) Water heater

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E90F Notification of reason for final refusal
E701 Decision to grant or registration of patent right