WO2019004625A1 - Appareil d'alimentation en eau chaude ayant une fonction de préchauffage et son procédé de commande - Google Patents

Appareil d'alimentation en eau chaude ayant une fonction de préchauffage et son procédé de commande Download PDF

Info

Publication number
WO2019004625A1
WO2019004625A1 PCT/KR2018/006402 KR2018006402W WO2019004625A1 WO 2019004625 A1 WO2019004625 A1 WO 2019004625A1 KR 2018006402 W KR2018006402 W KR 2018006402W WO 2019004625 A1 WO2019004625 A1 WO 2019004625A1
Authority
WO
WIPO (PCT)
Prior art keywords
hot water
water supply
internal
preheating
pipe
Prior art date
Application number
PCT/KR2018/006402
Other languages
English (en)
Korean (ko)
Inventor
손승길
김시환
허창회
송용민
Original Assignee
주식회사 경동나비엔
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 주식회사 경동나비엔 filed Critical 주식회사 경동나비엔
Publication of WO2019004625A1 publication Critical patent/WO2019004625A1/fr

Links

Images

Classifications

    • 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
    • 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
    • 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
    • F24D19/00—Details
    • F24D19/10—Arrangement or mounting of control or safety devices
    • 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
    • F24D2220/0207—Pumps
    • 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
    • F24D2220/0271—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
    • F24D2220/02—Fluid distribution means
    • F24D2220/0285—Pipe sections

Definitions

  • the present invention relates to a hot water supply apparatus having a preheating function and a control method thereof, and more particularly, to a hot water supply apparatus provided with a preheating function capable of preheating hot water before a user uses hot water, and a control method thereof .
  • the hot water supply device is a device for heating hot water to a predetermined temperature within a short time and supplying the hot water to a user conveniently.
  • the hot water supply device is configured to burn oil through a burner using oil or gas as a fuel, heat the water using the heat of combustion generated in the burning process, and provide the heated water according to the user's need .
  • the hot water valve provided in the faucet is opened and the hot water operation is operated.
  • the hot water is heated to the proper temperature, the cold water is discharged through the hot water outlet and is discarded as it is.
  • hot water of appropriate temperature is supplied.
  • FIG. 1 is a view showing a hot water preheating system equipped with a conventional hot water supply device.
  • the hot water supply device an internal straight oil inflow pipe 3 into which direct water flows, and a direct burner (not shown) And an internal hot water supply pipe 4 to which hot water heated by the heat exchanger 2 is supplied.
  • a return pipe 11 is installed between the water receiving holes 31 and 32 and the external direct oil receiving pipe 21 and a circulation pump 12 and a thermostat 13 are installed in the return pipe 11.
  • the circulation pump 12 When the temperature of the water inside the pipe becomes a certain temperature or less, the circulation pump 12 is activated, the water is heated by the burning of the burner, and when the temperature of the heated water becomes a certain temperature or more, So that the hot water supply device 1 is provided with the components for hot water preheating.
  • a separate return pipe 11 must be provided outside the hot water supply device 1, and the circulation pump 12 and the thermostat 13 must be installed in the return pipe 11 do.
  • the return pipe 11 may be installed considering the preheating of the hot water when the building is being expanded or shrunk. However, when the return pipe 11 is not provided when the building is being expanded or contracted, There is a problem that the preheating can not be performed.
  • FIG. 2 is a view showing another hot water preheating system equipped with a conventional hot water supply device.
  • FIG. 2 (a) shows a case where the return pipe 11 is not provided, A connection pipe 5 for connecting the internal hot water supply pipe 4 and the internal hot water supply pipe 4 and a circulation pump 6 provided on the connection pipe 5 are provided.
  • the circulation pump 6 When the circulation pump 6 is operated in the preheating mode for preheating the hot water and the combustion is performed in the burner, the water flowing by the circulation pump 6 flows through the connecting pipe 5, the internal straight oil inlet 3, And is preheated while circulating the inside of the hot water supply device 1 through the heat exchanger 2, the internal hot water supply pipe 4, and the connection pipe 5.
  • FIG. 2 (b) shows a case in which the return pipe 11 is provided.
  • the circulation pump 6 provided on the internal direct injection oil inlet pipe 3 is operated and the combustion is performed in the burner, the circulation pump 6
  • the water flowing in the hot water supply unit 1 is supplied to the hot water supply unit 1 through the inner straight milk infusion pipe 3, the heat exchanger 2, the hot water supply pipes 4 and 22, the return pipe 11, And is preheated while circulating inside and outside.
  • a hot-water preheating system can be constructed by installing a thermal by-pass valve 40 shown in FIG. 3 in the sink receptacle.
  • the bypass valve 40 is provided between the hot water inlet 42 and the hot water outlet 43 and between the direct inlet port 44 and the direct outlet port 45.
  • the bypass valve 40 is connected to the inside of the connection body 41 by a bimetal, The flow path is blocked, and when the temperature is lower than a predetermined temperature, a flow path is formed and circulated.
  • FIG. 4 is a view showing a hot water preheating system in which the bypass valve of FIG. 3 is installed.
  • water flowing by the circulation pump 6 circulates from the inside of the hot water supply device 1 to the receptacles 31 and 32 While being heated by the burner.
  • the bypass valve (40) can be easily installed without the return pipe (11) to constitute a preheating system.
  • the flow rate of the bypass valve 40 circulated through the internal flow path is very small, about 2 LPM or less.
  • the hot water supply device 1 frequently repeats the burning and stopping operations, which makes it difficult to keep the temperature of hot water in the pipe constant.
  • Korean Patent Laid-Open No. 10-2013-0126299 is disclosed as a prior art for preheating hot water.
  • the present invention has been conceived to solve the above problems and it is an object of the present invention to provide a hot water supply device having a preheat function capable of improving the compatibility of a hot water supply device by implementing various modes for preheating hot water in one hot water supply device, And to provide a control method therefor.
  • Another object of the present invention is to provide a hot water supply device capable of sensing the use of hot water by a user during hot water preheating and switching the hot water preheating mode to a hot water supply mode when the use of hot water is detected and a control method thereof .
  • a hot water supply apparatus having a preheat function
  • the hot water supply apparatus comprising: a heat exchanger for heating hot water introduced through an internal hot water supply inlet to supply hot water through an internal hot water supply pipe, 1.
  • a hot water supply device having a preheating function for preheating internal water and an internal hot water supply pipe, the hot water supply device comprising: a first connection pipe for connecting between the internal and external hot water supply pipes; A circulation pump for circulating water in the direction of the heat exchanger and the internal hot water supply pipe in the internal straight milk inflow in the preheating mode; And at least one circulation valve for allowing water to flow through the first connection pipe in the preheat mode.
  • the circulation pump is operated in a state in which the communication between the first connection pipe and the internal direct fluid-hydraulic inlet is cut off in the circulation valve in the preheating mode, and water heated in the heat exchanger is supplied to the internal hot water supply pipe,
  • a control unit for controlling the pipe to be connected to the supply pipe and the pipe for the internal supply of oil, as a pipe provided outside the hot water supply unit, and an external circulation mode for sequentially circulating the internal oil supply pipe.
  • the circulation pump operates the circulation pump in a state where the first connection pipe communicates with the internal direct fluid-hydraulic inlet at the circulation valve in the preheating mode, and water heated in the heat exchanger is supplied to the internal hot water supply pipe, , And an internal circulation mode for sequentially circulating the internal direct oil-hydraulic inlet.
  • One side of the first connection pipe is connected to the internal hot water supply pipe;
  • the first branch pipe and the second branch pipe are branched and connected in parallel between the other side of the first connection pipe and the internal straight oil feed inlet;
  • the circulating water can flow sequentially through piping outside the hot water supply device, the second branch pipe, the first branch pipe, and the inner straight pipe inlet.
  • One side of the first connection pipe is connected to the internal hot water supply pipe;
  • the first branch pipe and the second branch pipe are branched and connected in parallel between the other side of the first connection pipe and the internal straight oil feed inlet;
  • the circulating water may flow sequentially through the first connection pipe, the first branch pipe, and the internal straight oil inlet.
  • the position of the first intersection point at which the first branch pipe is connected to the inner straight oil feed inlet is more inward than the position of the second intersection point at which the second branch pipe is connected to the inner straight oil feed inlet;
  • the circulation pump may be provided on the first branch pipe.
  • the circulation valve comprises a three-way valve provided at an intersection of the first connection pipe, the first branch pipe and the second branch pipe, and connects the first connection pipe and the first branch pipe, It is possible to connect between the second branch pipes.
  • the circulation valve comprises a first circulation valve for opening and closing an internal flow path of the first connection pipe and a second circulation valve for opening and closing an internal flow path of the second branch pipe;
  • the first circulation valve may be closed, and the second circulation valve may be opened.
  • the circulation valve comprises a first circulation valve for opening and closing an internal flow path of the first connection pipe and a second circulation valve for opening and closing an internal flow path of the second branch pipe;
  • the first circulation valve may be opened, and the second circulation valve may be closed.
  • the circulation valve provided in the first connection pipe opens when the hot water is supplied to the user and mixes part of the direct water flowing in the internal straight oil inflow pipe into the hot water flowing in the internal hot water supply pipe; And the water heated in the heat exchanger may be circulated sequentially through the internal hot water supply pipe, the first connection pipe, and the internal direct oil feed inlet by opening the circulation pump in the preheat mode.
  • the circulation pump may be provided on an internal straight oil inlet which connects between the intersection of the first connection pipe and the inner straight oil inlet and the inlet of the heat exchanger.
  • a check valve for allowing a flow in the direction of the circulation valve from the internal hot water supply pipe to flow at the intersection where the first connection pipe and the internal hot water supply pipe cross and the first connection pipe between the circulation valves, May be provided.
  • a buffer tank for storing water passing through the heat exchanger may be provided on the internal hot water supply pipe.
  • a control method of a hot water supply device of the present invention comprises the steps of: a) determining whether a preheating start condition is satisfied; b) if the preheating start condition is met, opening the circulation valve such that water is allowed to flow through the first connection pipe connecting the inner straight milk feed inlet and the inner hot water feed tube, Performing an internal circulation mode in which the heated water is circulated sequentially through the internal hot water supply pipe, the first connection pipe, and the internal straight milk inlet; and c) stopping the operation of the circulation pump when the preheating stop condition is satisfied by the preheating.
  • the control method of the hot water supply apparatus of the present invention is characterized in that the hot water supplied through the inner straight milk feed inlet is heated in the heat exchanger and hot water is supplied through the inner hot water feed pipe,
  • a method of controlling a hot water supply apparatus having a preheating function for preheating water comprising the steps of: a) determining whether a preheating start condition is satisfied; b) closing the circulation valve so as to block the flow of water through the first connection pipe connecting the inner straight milk inflow pipe and the inner hot water supply pipe when the preheating start condition is satisfied; and, in the heat exchanger A step of performing an external circulation mode in which heated water is circulated through the internal hot water supply pipe, the internal hot water supply pipe, and the piping provided outside the hot water supply device; and c) stopping the operation of the circulation pump when the preheating stop condition is satisfied by the preheating.
  • the control method of the hot water supply apparatus of the present invention is characterized in that the hot water supplied through the inner straight milk feed inlet is heated in the heat exchanger and hot water is supplied through the inner hot water feed pipe,
  • a method of controlling a hot water supply apparatus having a preheating function for preheating water comprising the steps of: a) determining whether a preheating start condition is satisfied; b) if the preheating start condition is met, opening the circulation valve such that water is allowed to flow through the first connection pipe connecting the inner straight milk feed inlet and the inner hot water feed tube, Performing an internal circulation mode in which the heated water is circulated sequentially through the internal hot water supply pipe, the first connection pipe, and the internal straight milk inlet; c) closing the circulation valve such that water is not allowed to flow through the first connection pipe, and water heated in the heat exchanger by the operation of the circulation pump is supplied to the internal hot water supply pipe, A step of performing an external circulation mode in which the piping connected to the inlet is piped out of the hot water supply device,
  • the control method of the hot water supply apparatus of the present invention is characterized in that the hot water supplied through the inner straight milk feed inlet is heated in the heat exchanger and hot water is supplied through the inner hot water feed pipe,
  • a method of controlling a hot water supply apparatus having a preheating function for preheating water comprising the steps of: a) determining whether a preheating start condition is satisfied; b) if the preheating start condition is satisfied, the circulation valve is opened so that the flow of water is allowed through the first connection pipe connecting the inner straight milk feed inlet and the inner hot water feed tube, and by the operation of the circulation pump, Wherein the heated water in the heat exchanger is circulated through the internal hot water supply pipe, the first connection pipe, and the internal direct oil supply inlet in sequence, and water heated in the heat exchanger is introduced into the internal hot water supply pipe, A pipe connected to the outside of the hot water supply device as a connected pipe, and an external circulation that sequentially circulates the internal and the external oil supply; and c) stopping the operation of the circulation pump
  • the internal circulation of the step c) may be switched to the external circulation of the step c) while the combustion of the burner is stopped after the internal circulation of the step b).
  • the user When the user senses the use of hot water by the flow sensing unit provided on the inner straight milk inlet during the warming mode, the user can switch to the hot water supply mode for ending the preheating mode and supplying hot water to the user.
  • the water flowing in the internal direct oil inflow inlet may be blocked from flowing into the internal hot water supply pipe through the first connection pipe at the time of switching to the hot water supply mode.
  • connection direction of the circulation valve is set so that the flow of water through the first connection pipe is blocked Opening and closing can be performed.
  • the preheating start condition and the preheating stop condition are determined based on whether or not the temperature of the water is sensed at a set temperature or whether the preset time has elapsed until the start or stop of the preheating, Can be determined by combination.
  • the control method of the hot water supply apparatus of the present invention is a method of controlling a hot water supply apparatus including an internal circulation mode in which water heated in a heat exchanger (110) circulates inside a hot water supply apparatus, and a circulation mode in which water heated in a heat exchanger An external circulation mode for circulating via the outside is set in the control unit; Wherein when the internal circulation mode is selected, the hot water preheating is performed according to the control method according to claim 17; When the external circulation mode is selected, the hot water preheating can be performed according to the control method according to claim 18.
  • control unit is set to a continuous circulation mode in which the outer circulation mode is continuously performed after the inner circulation mode;
  • the hot water preheating may be performed according to the control method described in claim 19.
  • control unit sets a simultaneous circulation mode in which the internal circulation mode and the external circulation mode are simultaneously performed;
  • simultaneous circulation mode is selected to preheat the hot water, hot water preheating may be performed according to the control method described in claim 20.
  • the present invention by implementing various preheating modes including the inner circulation mode and the outer circulation mode in one hot water supply device, compatibility of the hot water supply device can be improved and product management can be efficiently performed.
  • FIG. 1 is a view showing a hot water preheating system having a conventional hot water supply device
  • FIG. 2 is a view showing another hot water preheating system equipped with a conventional hot water supply device
  • Fig. 3 is a perspective view showing a bypass valve installed in a faucet
  • FIG. 4 is a view showing a hot water preheating system in which the bypass valve of FIG. 3 is installed
  • FIG. 5 is a view showing a hot water supply device according to the first embodiment of the present invention
  • FIG. 6 is a view showing a hot water supply device according to a second embodiment of the present invention.
  • FIG. 7 is a view showing a state in which the hot water supply apparatus of FIG. 5 operates in an internal circulation mode
  • FIG. 8 is a view showing a case where hot water use is detected during operation in the internal circulation mode in the hot water supply apparatus of FIG. 5
  • Fig. 9 is a view showing a state in which the hot water supply apparatus of Fig. 5 is operated in the external circulation mode
  • FIG. 10 is a view showing a case where hot water use is detected during operation in the external circulation mode in the hot water supply apparatus of FIG. 5
  • Fig. 11 is a view showing a state in which the hot water supply apparatus of Fig. 5 operates in an internal circulation mode of a continuous circulation mode
  • FIG. 12 is a view showing a state in which the mode is switched from the inner circulation mode to the outer circulation mode in Fig. 11
  • FIG. 13 is a view showing a hot water supply device according to a third embodiment of the present invention.
  • FIG. 14 is a view showing a hot water supply device according to a fourth embodiment of the present invention.
  • first connection pipe 123 first branch pipe
  • Circulating flow sensor 147 Flow control valve
  • 150-1a first circulation valve 150-1b: second circulation valve
  • the hot water supply device according to the first embodiment will be described with reference to FIG.
  • the hot water supply device 100 includes an internal direct oil inflow pipe 120 into which direct water flows, a heat exchanger 120 that heats the direct water introduced through the internal direct oil inflow pipe 120 by the heat of combustion of a burner
  • An internal hot water supply pipe 121 for supplying hot water heated by the heat exchanger 110 to the user
  • a first connection unit 120 connecting the internal hot water supply pipe 120 and the internal hot water supply pipe 121
  • a circulation pump 130 for circulating water in the direction of the heat exchanger 110 and the internal hot water supply pipe 121 from the internal direct injection oil inlet pipe 120 in the preheating mode
  • a control unit (not shown) for controlling the operation of the burner, the circulation pump 130 and the circulation valve 150 in the preheating mode.
  • the preheating mode is a control mode for preheating the water inside the pipe before supplying hot water to the user.
  • the preheating mode is a mode for preheating the water inside the hot water supplying device 100 while circulating the water in the pipe inside the hot water supplying device 100
  • the circulation mode and the water in the piping outside the hot water supply device 100 including the external direct milk infusion inlet 21 and the external hot water supply pipe 22 as well as the piping inside the hot water supply device 100 are supplied to the hot water supply device 100), and an external circulation mode for preheating the inside and outside of the apparatus.
  • the preheating start condition in which preheating is started and the preheating stop condition in which preheating is stopped are set in the control unit. If the preheating start condition and the preheating stop condition are determined by the water temperature, the preheating start temperature and the preheating stop temperature can be set. If the preheating start condition and the preheating stop condition are determined by the elapsed time, The preheating stop time may be set as an elapsed time, or may be determined by a combination of whether or not the set temperature is reached and whether or not the set time has elapsed. The preheating start temperature and the preheating stop temperature may be set based on the temperature measured by the temperature sensor 142.
  • the internal straight oil inflow pipe 120 is connected to an external direct oil inflow inlet 21 provided outside the hot water supply device 100 and the internal hot water supply pipe 121 is connected to the outside And is connected to the external hot water supply pipe 22.
  • the external hot water supply pipe 22 is connected to the faucets 31 and 32 (FIG. 7) for supplying hot water to the user.
  • One side of the first connection pipe 122 is connected to the internal hot water supply pipe 121 and a first branch pipe 123 and a second branch pipe 123 are connected between the other side of the first connection pipe 122 and the internal direct-
  • the two-branch engine 124 is branched and connected in parallel.
  • the position of the first intersection 120a connecting the first branch pipe 123 to the internal straight oil inflow pipe 120 is determined by the position of the second branch pipe 124 connected to the internal straight oil inflow pipe 120 2 intersection 120b of the hot water supply device 100.
  • the hot water supply device 100 is located at a position closer to the hot water supply device 100 than the hot water supply device 100 is.
  • the circulation valve 150 includes a three-way valve provided at a position where the first branch pipe 123 and the second branch pipe 124 intersect the first connection pipe 122. 5, the circulation valve 150 is connected to the first branch pipe 123 in the direction indicated by A in FIG. 5 (hereinafter, referred to as a first direction) The first connection pipe 122 in the direction indicated by B in FIG. 1 (hereinafter referred to as the second direction) is prevented from being connected to the second branch pipe 124. In addition, the circulation valve 150 is connected in the second direction in the external circulation mode, and blocks the connection in the first direction.
  • a flow in the direction of the circulation valve 150 from the internal hot water supply pipe 121 is allowed on the first connection pipe 122 between the circulation valve 150 and the internal hot water supply pipe 121, A check valve 146 is provided.
  • the circulation pump 130 is provided on the first branch pipe 123. When the circulation pump 130 operates, the water inside the pipe flows through the first branch pipe 123, the internal straight oil inlet pipe 120, (110) and the internal hot water supply pipe (121).
  • a flow rate control valve 147, a temperature sensor 142, and a circulating flow rate sensor 143 are sequentially disposed on the internal direct oil inflow pipe 120.
  • the temperature of the hot water supplied to the user can be low.
  • the flow rate of the water supplied through the direct-injection inlet pipe 120 is reduced by the flow rate control valve 147, and the temperature of the hot water supplied to the user through the faucets 31 and 32 can be adjusted.
  • the temperature sensor 142 measures the temperature of the water flowing through the internal direct injection oil inlet pipe 120.
  • the circulation flow rate sensor 143 is provided on the internal straight oil inlet 120 between the first intersection 120a and the heat exchanger 110 to sense the flow rate circulated in the preheat mode, Can be determined.
  • temperature sensors 144 and 145 for measuring the temperature of water flowing through the internal hot water supply pipe 121 are provided.
  • a buffer tank 160 having a predetermined capacity for storing water flowing through the internal hot water supply pipe 121 is provided on the internal hot water supply pipe 121.
  • preheating starts by the burning of the burner. If the water capacity in the pipe is insufficient, the temperature of the water rises quickly to the preheating stop temperature. In addition, if the combustion of the burner is stopped after reaching the preheating stop temperature, the water capacity inside the pipe is not sufficient, and the water temperature rapidly falls to the preheating start temperature. As a result, on / off of the burner is repeated, so that the durability of the parts may be deteriorated.
  • the buffer tank 160 stores a predetermined amount of water heated by the heat exchanger 110, when the water is circulated for preheating the hot water, the water capacity inside the pipe can be sufficiently secured, It is possible to prevent the burner from being turned on / off repeatedly.
  • a second connection pipe 125 for connecting the internal direct-fluid-inlet pipe 120 and the internal hot water pipe 121 is provided.
  • the hot water supplied to the user by mixing the hot water flowing through the internal hot water supply inlet pipe 120 with the hot water flowing through the internal hot water supply pipe 121 is opened on the second connection pipe 125 when hot water is supplied to the user,
  • a mixing valve 148 for adjusting the temperature of the water is opened on the second connection pipe 125 when hot water is supplied to the user.
  • the mixing valve 148 regulates the amount of direct water mixed by adjusting the opening degree of the valve to regulate the temperature of the hot water.
  • the control unit may be set to a continuous circulation mode and a simultaneous circulation mode, which will be described later, including an inner circulation mode and an outer circulation mode.
  • any one of the plurality of preheating modes is selected.
  • the return pipe 11 is connected to the faucets 31 and 32 and the bypass valve 40 described with reference to Figs. 3 and 4 are included in the faucets 31 and 32 And whether or not it is.
  • the hot water preheating is automatically operated according to the selected mode.
  • the hot water supply device according to the second embodiment will be described with reference to FIG.
  • the hot water supply device 100-1 according to the second embodiment is different from the hot water supply device 100-1 only in that the circulation valve 150 is composed of two circulation valves 150-1a and 150-1b instead of a three- This is the same as the first embodiment.
  • the circulation valves 150-1a and 150-1b include a first circulation valve 150-1a provided on the first connection pipe 122 for opening and closing an internal flow passage of the first connection pipe 122, And a second circulation valve (150-1b) provided on the two-branch pipe (124) for opening and closing the internal flow passage of the second branch pipe (124).
  • the first circulation valve 150-1a In the external circulation mode, the first circulation valve 150-1a is closed and the second circulation valve 150-1b is opened. On the contrary, in the internal circulation mode, the first circulation valve 150-1a is opened and the second circulation valve 150-1b is closed.
  • the flow sensing unit 140 senses the flow of direct water.
  • the connection direction of the circulation valve 150 is switched from the first direction to the second direction , And stops the operation of the circulation pump (130).
  • the mixing valve 148 is opened to mix the direct water into the hot water flowing through the hot water supply pipe 121 to control the hot water temperature.
  • the hot water flowing in the hot water supply pipe 121 is supplied to the user through the hot water supply pipes 31 and 32 after passing through the hot water supply pipe 22 outside the hot water supply device 100.
  • connection direction of the circulation valve 150 is switched from the first direction to the second direction.
  • the check valve 146 is provided, the connection direction of the circulation valve 150 is switched to the second direction
  • the direct water is not mixed with the hot water flowing through the internal hot water supply pipe 121.
  • the check valve 146 is provided even if the circulation valve 150 fails to maintain the first direction without being switched to the second direction
  • the direct water is not mixed with the hot water.
  • the control is performed in the external circulation mode.
  • the circulation valve 150 is set in the second direction, the circulation pump 130 is operated, the combustion is made in the burner The water passing through the heat exchanger 110 is heated.
  • the water heated in the heat exchanger 110 flows through the internal hot water supply pipe 121, the external hot water supply pipe 22 outside the hot water supply device 100, the return pipe 11 and the external direct milk feed pipe 21, After passing through the internal straight oil inflow pipe 120, the second branch pipe 124, the first branch pipe 123 and the internal straight oil inflow pipe 120 in the internal combustion engine 100 and then flowing back to the heat exchanger 110 And circulates inside and outside the hot water supply device 100. Thereafter, when it is detected that the temperature of the water has reached the preset preheating stop temperature, the operation of the circulating pump 130 and the burner is stopped. In this case, the start and stop points of the circulation pump 130 and the burner may be set different from each other.
  • the circulation pump 130 can be operated even after the burner is stopped .
  • the temperature difference between the inside and outside piping can be reduced by activating the preheating mode based on the elapsed time as described above.
  • the circulation pump 130 Since the circulation pump 130 is installed on the first branch pipe 123, when the external circulation mode of FIG. 9 is operated, the flow sensing unit (not shown) provided between the first intersection 120a and the second intersection 120b 140), the flow of water is not detected or is detected at a very low flow rate even if it is detected.
  • the flow rate of the direct water flowing into the internal direct oil inflow pipe 120 inside the hot water supply device 100 becomes large through the external direct inflow oil inflow pipe 21. Accordingly, since the flow of the direct water is sensed by the flow sensing unit 140, the controller can determine that the hot water is used by the user.
  • connection direction of the circulation valve 150 is maintained unchanged, and the operation of the circulation pump 130 is stopped.
  • the mixing valve 148 is opened to mix the direct water with the hot water to adjust the hot water temperature.
  • the hot water flowing through the hot water supply pipes 121 and 22 is supplied to the user through the faucets 31 and 32.
  • the bypass valve 40 is provided between an external hot water supply pipe 22 and an external hot water supply pipe 23 connected to the power reception unit 31.
  • the supply pipe 23 is shut off and the external hot water supply pipe 22 and the external direct water supply pipe 23 are communicated when the temperature of the hot water is lower than a predetermined temperature.
  • the temperature sensor When the temperature of the water inside the pipe is sensed by the temperature sensor to be the predetermined preheating start temperature, it operates in the internal circulation mode in the same manner as described in Fig.
  • the internal circulation and the external circulation can set the start time and the stop time based on elapsed time. Also, by combining the temperature and the elapsed time of the water, the internal circulation can set the start and stop points based on the water temperature, and the external circulation can set the start and stop points based on the elapsed time.
  • the water in the hot water supply device (100) is first preheated through the internal circulation mode and then circulated in the external circulation mode using the preheated water in the state where the burning of the burner is stopped, It is possible to prevent the temperature from changing abruptly and to prevent frequent combustion and stopping operations from being repeated.
  • the hot water is supplied to the user by the same process as described with reference to FIG. 8, and when the user uses the hot water during the operation in the external circulation mode 10, the hot water is supplied to the user.
  • a hot water supply device according to a third embodiment of the present invention will be described with reference to FIG.
  • the hot water supply device 100-2 is constituted by one on-off valve in which the circulation valve 150-2 is opened and closed on / off, and the first connection pipe 122 -2 are connected to the internal direct oil inflow inlet pipe 120 and the internal hot water supply pipe 121 at both ends thereof and the circulation pump 130-2 is provided on the internal direct oil inflow inlet pipe 120, There is a difference only in that the check valve 141 is not provided on the direct oil feed inlet pipe 120, and the remaining configuration is the same as that of the first embodiment.
  • the hot water supply device 100-2 operates in an internal circulation mode when the return pipe 11 is not connected to the faucets 31 and 32 and the return pipe 11 is connected to the faucets 31 and 32
  • the bypass valve 40 is operated in the simultaneous circulation mode in which the inside and the outside of the hot water supply device 100-2 are simultaneously circulated in the case where the bypass valve 40 is provided in the faucets 31 and 32 . This is also true in the case of the fourth embodiment described later.
  • the circulation valve 150-2 When the internal circulation mode is activated, the circulation valve 150-2 is opened, the circulation pump 130-2 is activated, and the combustion is performed in the burner to heat the water passing through the heat exchanger 110. [ The heated water is preheated while circulating the internal hot water supply pipe 121, the first connection pipe 122-2, the internal direct oil feed inlet pipe 120, and the heat exchanger 110 in sequence.
  • the circulation valve 150-2 When operated in the external circulation mode, the circulation valve 150-2 is closed, the circulation pump 130-2 is activated, and the combustion is performed in the burner to heat the water passing through the heat exchanger 110.
  • the heated water includes a pipe connected to the outside of the hot water supply device 100-2 including the internal hot water supply pipe 121 and the return pipe 11, an internal straight oil inflow pipe 120, and a heat exchanger 110, And is warmed up.
  • the circulation valve 150-2 is opened, the circulation pump 130-2 is operated, and the combustion is performed in the burner to heat the water passing through the heat exchanger 110.
  • the heated water flows into the internal straight oil inlet pipe 120 through the internal hot water supply pipe 121 and the first connection pipe 122-2, thereby performing internal circulation.
  • the heated water passes through the internal hot water supply pipe 121, the external hot water supply pipe 22, the bypass valve 40, the external direct water supply pipe 23 and the external direct milk feed pipe 21, 100-2 so that external circulation is achieved.
  • the water in the pipes 21, 22, and 23 provided outside the hot water supply device 100-2 since the flow rate passing through the bypass valve 40 is very small, the water in the pipes 21, 22, and 23 provided outside the hot water supply device 100-2, even if the internal circulation and the external circulation are simultaneously performed, It may not be preheated to a sufficient temperature. Therefore, by setting the start and end points of the preheating to the elapsed time, the water in the pipes 21, 22, and 23 outside the hot water supply device 100-2 can be preheated to a sufficient temperature, 2) It is possible to prevent a temperature deviation from occurring between the inside piping and the outside piping.
  • the water inside the pipe is dispersed and flows through the internal pipe and the external pipe of the hot water supply device 100-2, so that the total flow rate is increased. Therefore, even if the flow rate circulated through the external piping of the hot water supply device 100-2 is small due to the provision of the bypass valve 40, the flow rates circulated through the internal piping of the hot water supply device 100-2 are combined, The temperature of the hot water preheating due to the small flow rate passing through the bypass valve 40 can prevent the burner from repeatedly burning and stopping.
  • the flow sensing part 140 is provided between the third intersection 120c where the first connection pipe 122-2 and the internal direct injection oil inlet pipe 120 intersect with the inlet part of the internal direct injection oil inlet pipe 120, have.
  • the flow sensing unit 140 senses the flow of water, so that the user can sense the use of hot water.
  • the circulation valve 150-2 is closed and the operation of the circulation pump 130-2 is stopped.
  • the temperature of the hot water supplied to the user can be adjusted because the burner is continuously burning. Therefore, even if the user can not detect whether or not the hot water is used, the user can use the hot water.
  • the hot water supply device according to the fourth embodiment of the present invention will be described with reference to FIG.
  • the hot water supply device 100-3 is composed of an opening degree control valve capable of adjusting the amount of opening instead of the on-off valve having only the on / off state of the circulation valve 150-3, There is a difference only in that the configuration corresponding to the check valve 146 is not provided on the first connection pipe 122-2 and the second connection pipe 125 and the mixing valve 148 are not provided, The configuration is the same as that of the third embodiment.
  • the inner circulation mode, the outer circulation mode, and the simultaneous circulation mode are performed by the same method as described in the third embodiment.
  • the operation of the circulation pump 130-2 is stopped to terminate the preheating mode and switch to the hot water supply mode.
  • the circulation valve 150-3 is opened, but the function of the mixing valve for adjusting the temperature of the hot water by mixing the hot water with the direct water can be performed by adjusting the opening amount.
  • the hot water supply device it is possible to improve the compatibility of the hot water supply device by implementing the various preheating modes including the inner circulation mode, the outer circulation mode, the continuous circulation mode and the simultaneous circulation mode in one hot water supply device, .

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)
  • Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)

Abstract

La présente invention vise à fournir un appareil d'alimentation en eau chaude ayant une fonction de préchauffage et son procédé de commande, l'appareil d'alimentation en eau chaude étant apte à améliorer l'interopérabilité de l'appareil d'alimentation en eau chaude en permettant divers modes de préchauffage d'eau chaude dans un unique appareil d'alimentation en eau chaude. À cet effet, l'appareil d'alimentation en eau chaude selon la présente invention est l'appareil d'alimentation en eau chaude qui fournit de l'eau chaude par chauffage d'eau directe, introduite par l'intermédiaire d'un tube d'introduction d'eau directe interne, dans un échangeur de chaleur et fourniture d'eau chaude par l'intermédiaire d'un tube d'alimentation en eau chaude interne, l'eau à l'intérieur du tube d'introduction d'eau directe interne et du tube d'alimentation en eau chaude interne étant préchauffée lors d'un mode de préchauffage, et l'appareil d'alimentation en eau chaude comprenant : un premier tube de raccordement pour relier le tube d'introduction d'eau directe interne et le tube d'alimentation en eau chaude interne ; une pompe de circulation pour faire circuler l'eau du tube d'introduction d'eau directe interne à l'échangeur de chaleur et au tube d'alimentation en eau chaude interne lors du mode de préchauffage ; et au moins une vanne de circulation permettant l'écoulement d'eau à travers le premier tube de raccordement lors du mode de préchauffage.
PCT/KR2018/006402 2017-06-30 2018-06-05 Appareil d'alimentation en eau chaude ayant une fonction de préchauffage et son procédé de commande WO2019004625A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020170083238A KR102207961B1 (ko) 2017-06-30 2017-06-30 예열 기능이 구비된 온수공급장치 및 그 제어방법
KR10-2017-0083238 2017-06-30

Publications (1)

Publication Number Publication Date
WO2019004625A1 true WO2019004625A1 (fr) 2019-01-03

Family

ID=64742424

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2018/006402 WO2019004625A1 (fr) 2017-06-30 2018-06-05 Appareil d'alimentation en eau chaude ayant une fonction de préchauffage et son procédé de commande

Country Status (2)

Country Link
KR (1) KR102207961B1 (fr)
WO (1) WO2019004625A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102490722B1 (ko) 2021-01-04 2023-01-20 주식회사 성원에스티씨 외부에 설치된 수전의 동파 방지 및 온수 공급을 위한 밸브 시스템

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR960005739Y1 (ko) * 1994-03-30 1996-07-12 린나이코리아 주식회사 보일러의 온수예열장치
KR100812937B1 (ko) * 2007-05-10 2008-03-11 주식회사 경동나비엔 온수 공급 시스템
KR101018774B1 (ko) * 2008-06-24 2011-03-07 주식회사 경동네트웍 온수 온도를 일정하게 유지시키기 위한 온수 공급 시스템
KR101370937B1 (ko) * 2011-07-04 2014-03-10 주식회사 경동나비엔 가스 온수기 및 이를 구비한 온수공급장치
KR101452644B1 (ko) * 2013-09-16 2014-10-22 최진민 열교환기 결로 방지 기능을 갖는 온수 공급 시스템

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040106653A (ko) * 2003-06-11 2004-12-18 주식회사 경동보일러 온수 공급시스템
KR100738892B1 (ko) * 2005-12-29 2007-07-12 주식회사 롯데기공 보일러의 온수 예열방법
KR20110008436U (ko) * 2010-02-24 2011-08-31 황도익 급수설비의 배관 냉각수 재가열 시스템 및 급수전

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR960005739Y1 (ko) * 1994-03-30 1996-07-12 린나이코리아 주식회사 보일러의 온수예열장치
KR100812937B1 (ko) * 2007-05-10 2008-03-11 주식회사 경동나비엔 온수 공급 시스템
KR101018774B1 (ko) * 2008-06-24 2011-03-07 주식회사 경동네트웍 온수 온도를 일정하게 유지시키기 위한 온수 공급 시스템
KR101370937B1 (ko) * 2011-07-04 2014-03-10 주식회사 경동나비엔 가스 온수기 및 이를 구비한 온수공급장치
KR101452644B1 (ko) * 2013-09-16 2014-10-22 최진민 열교환기 결로 방지 기능을 갖는 온수 공급 시스템

Also Published As

Publication number Publication date
KR102207961B1 (ko) 2021-01-26
KR20190002926A (ko) 2019-01-09

Similar Documents

Publication Publication Date Title
WO2013005976A2 (fr) Chauffe-eau à gaz et dispositif d'alimentation en eau chaude le comprenant
KR100812937B1 (ko) 온수 공급 시스템
CN108006961A (zh) 热源装置
WO2017111364A1 (fr) Chaudière pour eau chaude et chauffage combinés, et son procédé de commande
WO2017131341A2 (fr) Système d'alimentation en eau chaude ayant une fonction de préchauffage et son procédé de commande
WO2010095828A2 (fr) Chauffe-eau portable pour matelas chauffant
WO2019124821A1 (fr) Appareil d'alimentation en eau chaude et procédé d'utilisation de la chaleur perdue d'un appareil d'alimentation en eau chaude
WO2019004625A1 (fr) Appareil d'alimentation en eau chaude ayant une fonction de préchauffage et son procédé de commande
WO2020055103A1 (fr) Procédé de commande pour réchauffeur de gaz
CN111089418A (zh) 一种两用炉工作系统及工作方法
WO2019022366A1 (fr) Système de chaudière destiné au chauffage et à l'alimentation en eau chaude
WO2019216635A1 (fr) Chaudière combinée pour eau chaude et chauffage et son procédé de commande
WO2019143038A1 (fr) Dispositif de distribution de chauffage et d'eau chaude
CN110440454A (zh) 一种燃气热水器外部控制模块及其燃气热水器系统及控制方法
KR100230127B1 (ko) 온수난방기에 있어서의 동결방지방법 및 동결방지장치
WO2016143924A1 (fr) Système d'eau chaude solaire
JP3835899B2 (ja) 制御用通信装置
KR100230128B1 (ko) 가스급탕난방기에 있어서의 동결방지방법 및 동결방지장치
WO2016129757A1 (fr) Appareil de plomberie à circulation d'eau chaude
WO2019212291A1 (fr) Chaudière
JP4215337B2 (ja) 熱供給システム
JP3963594B2 (ja) 温水暖房装置
WO2010095829A2 (fr) Chauffe-eau portable pour matelas chauffant
WO2019054605A1 (fr) Procédé de commande de détermination automatique pour temps de préchauffage efficace d'eau chaude selon un environnement d'installation
JPH0225070Y2 (fr)

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18823813

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18823813

Country of ref document: EP

Kind code of ref document: A1