WO2019054605A1 - Procédé de commande de détermination automatique pour temps de préchauffage efficace d'eau chaude selon un environnement d'installation - Google Patents

Procédé de commande de détermination automatique pour temps de préchauffage efficace d'eau chaude selon un environnement d'installation Download PDF

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Publication number
WO2019054605A1
WO2019054605A1 PCT/KR2018/006446 KR2018006446W WO2019054605A1 WO 2019054605 A1 WO2019054605 A1 WO 2019054605A1 KR 2018006446 W KR2018006446 W KR 2018006446W WO 2019054605 A1 WO2019054605 A1 WO 2019054605A1
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Prior art keywords
time
preheating
temperature
hot water
water
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PCT/KR2018/006446
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English (en)
Korean (ko)
Inventor
이은억
Original Assignee
주식회사 경동원
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Publication of WO2019054605A1 publication Critical patent/WO2019054605A1/fr

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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
    • F24H15/00—Control of fluid heaters
    • F24H15/10—Control of fluid heaters characterised by the purpose of the control
    • F24H15/156—Reducing the quantity of energy consumed; Increasing efficiency
    • 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
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/10—Control of fluid heaters characterised by the purpose of the control
    • F24H15/174—Supplying heated water with desired temperature or desired range of temperature
    • 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
    • F24H15/00—Control of fluid heaters
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F24H15/212—Temperature of the water
    • F24H15/215—Temperature of the water before heating
    • 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
    • F24H15/00—Control of fluid heaters
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F24H15/212—Temperature of the water
    • F24H15/219—Temperature of the water after heating
    • 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
    • F24H15/00—Control of fluid heaters
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F24H15/238—Flow rate
    • 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
    • F24H15/00—Control of fluid heaters
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F24H15/269—Time, e.g. hour or date
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2220/00—Components of central heating installations excluding heat sources
    • F24D2220/04—Sensors
    • F24D2220/042—Temperature sensors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F24H15/281—Input from user

Definitions

  • the present invention relates to an automatic warm-up preheat time control method and a control method thereof, and more particularly, And more particularly, to an automatic hot water preheating time control method according to an installation environment capable of increasing the efficiency of hot water preheating and minimizing unnecessary energy loss.
  • the hot water supply device is a device for heating hot water to a set temperature within a short time and supplying the hot water to the 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 preheating is performed in the following two embodiments.
  • One embodiment of the hot water preheating is a method in which the warmer operation time and the preheating standby time are set by the installer or the user of the hot water supply device to perform the preheating periodically.
  • Another embodiment of the hot water preheating is a method of performing preheating by circulating the hot water preheating pipe and turning on / off the preheating according to the water temperature of the water that is returned to the heat exchanger of the water heater.
  • the hot water preheating is performed by this method, since the hot water preheating is performed based only on the return water temperature information sensed by the temperature sensor, the ON / OFF operation of the preheating operation is frequently performed, , There is a problem that the preheating operation can be performed in a manner incompatible with the installation environment of the actual pipe.
  • the hot water preheating method disclosed in the above Patent No. 10-1598538 is configured to repeatedly perform the hot water preheating and the hot water preheating atmosphere for a predetermined time period, and the hot water preheating method disclosed in the above-mentioned Japanese Patent No. 10-0498538,
  • the hot water preheating combustion operation is performed when the temperature of the water detected by the temperature sensor installed in the outdoor unit is lower than the hot water preheating set temperature, and the warm preheating combustion operation is performed when the temperature is higher than or equal to the predetermined temperature.
  • an automatic hot water preheating time control method for a hot water preheating time control system for a hot water preheating system comprising the steps of: Determining a hot water preheating operation time determined as a time; The hot water preheating is stopped and the preheating standby time is preheated for a preheated hot water preheating wait time, and then the temperature of the circulating water at a predetermined time after the preheating material is performed is measured. If the circulating water temperature is within the predicted reference temperature range, And a warm water preheating wait time determination step of determining the warm water preheating wait time.
  • the preheating operation time may be counted from a time point at which the hot water outlet temperature after the hot water preheating operation reaches the set temperature in the hot water preheating operation time determining step.
  • the hot water preheat operation time determination step may be configured to count the hot water preheat operation time from the operation start point of the pump according to the hot water preheating operation.
  • the stabilizing time at which the water-return temperature is maintained within the set convergence temperature from the point at which the water-return temperature reaches the reference temperature is counted in the step of determining the hot water preheating operation time, and the counted stabilization time exceeds the stabilization reference time And determining the preheating operation time in the case of performing the preheating operation.
  • control unit counts the time at which the water return temperature reaches a predetermined temperature or more from the time when the water return temperature reaches the reference temperature at the step of determining the warm water preheating operation time and if the counted temperature arrival time exceeds the temperature arrival determination reference time And determining the preheating operation time in the case where the preheating operation time is shorter than the preheating operation time.
  • the predetermined time after the preheating material is determined is a pipe intermediate temperature determination time of the hot water preheating circulation pipe in the step of determining the hot water preheating wait time and when the pipe intermediate temperature determination time reaches the pipe intermediate temperature determination reference time, And the like.
  • the temporarily stored hot water preheating waiting time is reduced by a predetermined time to temporarily store the corrected hot water preheating waiting time. If the water return temperature is higher than the upper limit And temporarily storing the warmed-up preheating wait time corrected by increasing the preheated warm-up preheating wait time by a predetermined time.
  • a hot water preheating operation time update step of initializing the preheating operation time reestablishment count count when the recirculated water temperature reaches the upper limit with the lower limit of the preheat water recirculation reference temperature after the counted preheating operation time reaches the preheating reference time .
  • the preheating operation time re-judgment count count is added once if the recirculated water temperature is higher than the upper limit of the preheating rehabilitation reference temperature before the counted preheating operation time reaches the preheating reference time, and the counted preheating operation time re- And a warm-up preheat operation time update step of initializing the preheat operation time when the reference number is exceeded.
  • the preheating operation time re-judgment count count is added once, and the counted preheating operation time re- And a warm-up preheat operation time update step of initializing the preheat operation time when the number of times of the preheating operation exceeds the reference number of times.
  • the preheating waiting time counting count count is added once, And a warm-up preheating wait time updating step of initializing a warm-up wait time when a preheating wait time re-judgment count exceeds a reference count.
  • the preheating waiting time counting count count is added once, And a warm-up preheating wait time updating step of initializing the warm-up wait time when the number of warm-up wait time re-determination exceeds the reference number.
  • the automatic hot water preheating time control method it is possible to automatically determine and apply the preheating operation time and the preheating standby time according to the installation environment of the hot water supply device, It is possible to increase the efficiency of hot water preheating, prevent unnecessary energy consumption, and improve the reliability of the hot water preheating function. In addition, efficient preheating is possible by automatically responding to temperature environment changes such as installation environment and seasons.
  • FIG. 1 is a configuration diagram of a hot water supply apparatus having a hot water preheating function to which the present invention is applied,
  • FIG. 2 is a flowchart of a preheating operation time determination method according to the present invention
  • FIG. 3 is a flowchart of a warm-up waiting time determination method according to the present invention.
  • FIG. 5 is a flowchart of a warm-up waiting time update method according to the present invention.
  • hot water supply device 10 water heater
  • a hot water supply apparatus 1 having a hot water preheating function includes a water heater 10 for heating hot water to supply hot water, a direct water pipe for supplying hot water to the water heater 10, A heat exchanger 30 for generating hot water by heating the direct water flowing through the water pipe 21, the water pipe internal water pipe 22 and the water pipe internal water pipe 22 by the combustion heat of the burner, A hot water internal hot water pipe 23 for supplying heated hot water to the power receiver 40 and a hot water preheating circulation pipe 24 for connecting the hot water internal hot water pipe 23 and the direct water pipe 21 to form a hot water circulation channel An outlet side water supply pipe 25 for supplying direct water from the direct water pipe 21 to the water receiving side 40, a flow rate sensor 50 for sensing the flow amount of the direct water to be introduced, A water temperature sensor 60 for detecting the temperature of water to be returned to the water heat exchanger 30, Is provided in the port side is configured to include a pump 80 for circulating the water to the outlet temperature sensor 70, and pre-heating of the water for detecting
  • FIG. 1 An efficient method of controlling hot water preheating time according to an installation environment according to the present invention will be described with reference to FIGS. 2 to 5.
  • FIG. 1 An efficient method of controlling hot water preheating time according to an installation environment according to the present invention will be described with reference to FIGS. 2 to 5.
  • the method for automatically determining hot water preheating time is characterized in that it comprises the steps of counting the time from when the hot water preheating operation is started until the return water temperature reaches and stabilizes to the reference temperature to determine the hot water preheating operation time
  • the method further includes a hot water preheat operation time update step for correcting the hot water preheat operation time according to the installation environment and a hot water preheating wait time update step for correcting the hot water preheat wait time according to the installation environment.
  • a hot water preheating time determination method a hot water preheating time determination method, a hot water preheating time update method, and a hot water preheating wait time update method constituting an efficient hot water preheating time control method according to an installation environment according to the present invention will be described below. This is explained sequentially.
  • the pump 80 is operated for preheating circulation of the hot water, and combustion in the heat exchanger 30 is performed (S101).
  • step S102 it is determined whether the hot water outlet temperature sensed by the outlet temperature sensor 70 reaches a predetermined temperature or not when the pump 80 is warmed up by preheating in the state where the preheating operation time is not established or initialized.
  • the preheating operation time is counted from the time when the hot water outlet temperature reaches the set temperature (S103). In another embodiment, the preheating operation time may be configured to count from the time when the pump 80 is started.
  • step S104 it is determined whether or not the temperature of the return water sensed by the water-return temperature sensor 60 rises and the temperature change is maintained within a predetermined range within a predetermined time and stabilized. However, if the return temperature does not exceed the minimum reference temperature, the stabilization is not judged. This is to prevent the water in the pipe from being misunderstood as being stabilized even though the water in the pipe is not reaching the minimum reference temperature when the water moves to the return water.
  • the stabilization time at which the water-circulation temperature is maintained within the set convergence temperature from the stabilization determination time is counted (S105).
  • the stabilization reference time may be set to a predetermined time, and may be set to a time that can be determined to be stabilized when the stabilization time is maintained without fluctuation during the stabilization reference time. If the counted stabilization time exceeds the stabilization reference time, it is determined that the water return temperature has converged and stabilized within a predetermined temperature range, and the preheating operation time is determined (S107), and the preheating is finished.
  • the time when the return water temperature reaches the predetermined temperature or more from the time when the water return temperature reaches the reference temperature is counted, and when the counted temperature arrival time exceeds the temperature arrival judgment reference time, And determining the operation time. That is, when the counted temperature arrival time exceeds the temperature arrival judgment reference time, it can be determined that the change in temperature rise is not large and stabilized.
  • the reference temperature may be a preheated hot water temperature set by the user.
  • the warm-up waiting time is counted (S201). It is determined whether the counted warm-up wait time has reached the pre-stored warm-up wait time (S202).
  • the temporarily stored warm-up waiting time may be set to an initial warm-up waiting time or a warm-up waiting time previously applied.
  • the piping intermediate temperature determination time is counted (S204).
  • the piping intermediate temperature determination time is required for the preheated hot water, which is about midway of the entire pipe length of the hot water preheating circulation pipe 24, to reach the position where the water temperature sensor 60 is provided This is to measure the return temperature based on the average temperature value of the preheated hot water flowing in the whole pipe.
  • the pipe intermediate temperature determination reference time is a time during which the water located at the outlet side of the heat exchanger (30) flows through the heat exchanger (30) through the hot water outlet temperature and the water temperature change during the combustion of the burner by the preheating and the operation of the pump.
  • the time taken to reach the inlet side of the heat exchanger 30 is derived and the time derived is divided by half so that the water in the middle of the pipes 23, 24, 22 reaches the outlet side position of the heat exchanger 30 As shown in FIG.
  • the pipe intermediate predicted reference temperature is a temperature at which the preheating operation is completed after completion of the preheating wait time currently being applied and the water in the middle of the pipes 23, 24, and 22 reaches the water return temperature at the inlet side of the heat exchanger 30 Means the expected temperature range.
  • step S206 If it is determined in step S206 that the water return temperature is higher than the lower limit of the piping intermediate predicted reference temperature, it is determined whether the water return temperature is higher than the upper limit of the piping intermediate predicted reference temperature (S207).
  • the preheating waiting time counted is determined as the preheating waiting time (S208), and the preheating operation is terminated.
  • step S206 If it is determined in step S206 that the water return temperature is lower than the lower limit of the pipe intermediate reference temperature, the corrected preheating wait time is reduced by the time set in the counted warm-up wait time (S209, S211).
  • step S207 If it is determined in step S207 that the water temperature is higher than the upper limit of the piping intermediate predicted reference temperature, the corrected preheating wait time is increased by the time set in the counted warm-up wait time (S210, S211).
  • the hot water preheating operation time update is performed in a state in which the preheating operation time determination is completed through the aforementioned hot water preheating operation time determination method.
  • the preheating is started and the preheating operation time is counted (S301).
  • the preheating reference time may be set as the preheating time applied immediately before.
  • the preheating and recycling reference temperature may be a preheating temperature set by the user.
  • step S303 If it is determined in step S303 that the return water temperature is higher than the lower limit of the preheat water return reference temperature, the preheat operation time reestablishment count count is initialized (S304).
  • step S302 If it is determined in step S302 that the counted preheating operation time has not reached the preheating reference time, it is determined whether the water return temperature is higher than the upper limit of the preheating water return reference temperature (S305).
  • step S305 If it is determined in step S305 that the return water temperature is lower than the upper limit of the reference temperature for preheating, the preheating operation time is counted (step S301). If the return water temperature is higher than the upper limit of the preheating water return reference temperature, Is added once (S306).
  • step S303 If it is determined in step S303 that the return temperature is lower than the lower limit of the reference temperature for preheating and recycling, the preheating operation time re-judgment count count is added once (S306).
  • step S307 the number of warm-up operation time counting times counted in step S306 is compared with the reference count.
  • the reference number is a value set to determine whether or not the number of times the water return temperature is out of the reference temperature range is repeated a predetermined number of times or more.
  • step S307 when the counted number of preheating operation time re-determination exceeds the reference number, the preheating operation time is initialized (S308), and the preheating operation is terminated.
  • the preheating operation time is updated by re-executing the above-described hot water preheating operation time determination.
  • the warm-up preheating wait time update is performed in a state in which the warm-up wait time determination is completed through the warm-up preheat wait time determination method described above.
  • step S403 If it is determined in step S403 that the water return temperature is higher than the lower limit of the pipe middle reference reference temperature, it is determined whether the water return temperature is higher than the upper limit of the pipe middle reference reference temperature in step S404.
  • step S404 If it is determined in step S404 that the water return temperature is lower than the upper limit of the piping intermediate predicted reference temperature, the preheating wait time re-determination count is initialized (S405).
  • step S403 If it is determined in step S403 that the water return temperature is lower than the lower limit of the piping intermediate predicted reference temperature, the preheating wait time re-judgment count count is added once (S406).
  • step S404 If it is determined in step S404 that the water return temperature is higher than the upper limit of the piping intermediate predicted reference temperature, the preheating wait time re-judgment count count is added once (S406).
  • the counted number of warm-up wait time re-judgments is compared with the reference count (S407).
  • the reference number is a value set to determine whether the number of times the water return temperature is out of the piping intermediate predicted reference temperature range is repeated a predetermined number of times or more.
  • the warm-up wait time is initialized (S408), and pre-heating is performed normally.
  • the warm-up pre-warm-up time determination is re-executed to update the warm-up wait time.
  • the hot water is in use. At this time, the direct water is mixed into the preheating hot water, Since it is difficult to measure accurately, the determination of the preheating operation time and the determination of the preheating wait time are performed under the following determination conditions.

Abstract

L'objectif de la présente invention est de fournir un procédé de commande de détermination automatique pour un temps de préchauffage efficace d'eau chaude selon un environnement d'installation, susceptible d'améliorer l'efficacité de préchauffage d'eau chaude et de limiter les pertes inutiles d'énergie par dérivation et par application d'un temps optimal d'opération de préchauffage d'eau chaude et d'un temps d'attente de préchauffage, en fonction d'un environnement d'installation d'un dispositif d'alimentation en eau chaude. À cet effet, la présente invention est configurée pour comprendre : une étape de détermination de temps d'opération de préchauffage d'eau chaude, permettant de chronométrer le temps du moment où le préchauffage d'eau chaude est actionné au moment où une température d'eau de retour atteint une température de référence et est stabilisée et de déterminer le temps en tant que temps d'opération de préchauffage d'eau chaude ; et une étape de détermination de temps d'attente de préchauffage d'eau chaude permettant, après l'arrêt de préchauffage d'eau chaude et l'attente pour préchauffage pendant un temps d'attente de préchauffage d'eau chaude stocké temporairement, la mesure de la température d'eau de retour lorsqu'un temps prédéfini s'est écoulé après la réitération du préchauffage et, lorsque la température d'eau de retour se trouve à l'intérieur d'une plage de température de référence prédite, la détermination du temps d'attente de préchauffage d'eau chaude stocké temporairement en tant que temps d'attente de préchauffage d'eau chaude.
PCT/KR2018/006446 2017-09-14 2018-06-07 Procédé de commande de détermination automatique pour temps de préchauffage efficace d'eau chaude selon un environnement d'installation WO2019054605A1 (fr)

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KR1020170117864A KR102145036B1 (ko) 2017-09-14 2017-09-14 설치환경에 따른 효율적인 온수 예열시간 자동 판단 제어방법
KR10-2017-0117864 2017-09-14

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020047842A (ko) * 2000-12-14 2002-06-22 강성모 보일러의 온수예열 제어장치 및 그 방법
KR20070070663A (ko) * 2005-12-29 2007-07-04 주식회사 롯데기공 보일러의 온수 예열방법
JP2011525232A (ja) * 2008-06-27 2011-09-15 キョントン ネットワーク カンパニー リミテッド 給湯システムにおける低流速時の湯温制御方法
KR20150090420A (ko) * 2014-01-29 2015-08-06 린나이코리아 주식회사 난방수 열을 이용한 온수 예열방법
KR101579440B1 (ko) * 2014-06-27 2015-12-23 린나이코리아 주식회사 가스 보일러의 온수 재 출탕시 온수온도 편차 보정방법

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