CN102305474A - Intelligent control method of water heater return circulating pump - Google Patents

Intelligent control method of water heater return circulating pump Download PDF

Info

Publication number
CN102305474A
CN102305474A CN201110201870A CN201110201870A CN102305474A CN 102305474 A CN102305474 A CN 102305474A CN 201110201870 A CN201110201870 A CN 201110201870A CN 201110201870 A CN201110201870 A CN 201110201870A CN 102305474 A CN102305474 A CN 102305474A
Authority
CN
China
Prior art keywords
water
temperature
circulation pump
backwater circulation
backwater
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CN201110201870A
Other languages
Chinese (zh)
Other versions
CN102305474B (en
Inventor
丁志勇
从功力
费翔
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AO Smith China Water Heater Co Ltd
Original Assignee
AO Smith China Water Heater Co Ltd
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 AO Smith China Water Heater Co Ltd filed Critical AO Smith China Water Heater Co Ltd
Priority to CN 201110201870 priority Critical patent/CN102305474B/en
Publication of CN102305474A publication Critical patent/CN102305474A/en
Application granted granted Critical
Publication of CN102305474B publication Critical patent/CN102305474B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

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

Abstract

The invention relates to an intelligent control method of a water heater return circulating pump, which belongs to the technical field of household appliances. A circulating system comprises a water heater as a hot water source and a hot water supply pipeline, wherein the water heater has a sensor for monitoring the water temperature at the upper part and the ambient temperature and an intelligent control circuit; the hot water supply pipeline is provided with a return circulating pump controlled by the intelligent control circuit; and the intelligent control circuit controls the return circulating pump to start and stop through reading, operation and control when the water heater is in supplied condition. When the intelligent control method of the invention is adopted, the stop and start time of the return circulating pump can be calculated by means of the original intelligent control circuit of the water heater by inputting related heat radiation parameters of the specific hot water supply pipeline after installation, then the return circulating pump is controlled to start and stop, and the hot water can be obtained at the most economical condition.

Description

Water heater backwater circulation pump intelligence control method
Technical field
The present invention relates to a kind of control of water heater, especially a kind of water heater backwater circulation pump intelligence control method belongs to household electrical appliance technical field.
Background technology
Hot water supply system cools off because of the tube wall heat radiation away from the water in thermal water source's pipeline in order to prevent; Thereby guarantee no matter where be in hot water supply system; All can open at any time has the hot water supply at any time, and needing constantly, control thermal water source's hot water circulates in system pipeline.Understand according to the applicant, the loop control of existing hot-water heating system has following two kinds of forms:
1) timing controlled: i.e. certain hour at interval, start pump operating cycle, make the water circulation in the pipeline, thereby keep water temperature.
2) temperature control: i.e. mounting temperature sensor in pipeline, when the water temperature in detecting pipeline is lower than setting value, start circulating pump, make the water circular flow in the pipeline, thereby keep water temperature.
Facts have proved that in use there is following problem in above-mentioned two kinds of control forms:
1) timing controlled: though can realize the hot water plug and play,, therefore exist, need often to adjust the time interval according to environment temperature or user's water custom than mistake because the variation of environment temperature and user's water custom is different.Otherwise, or the backwater circulation pump operation is not enough, need bleed off the cold water in the pipeline during water, and hot water output is just arranged; The backwater circulation pump operation time is excessive, wastes energy.In addition, if the user is easy to produce water temperature and stirs just in time at backwater circulation pump startup stage water, cause the comfortableness of water to descend.
2) temperature control: though also can realize the hot water plug and play; But need independently to be provided with backwater control system; Human factor when not only install at the precision of temperature sensor and scene is bigger to following control accuracy influence, and the Installation and Debugging trouble, and cost is also than higher.
Summary of the invention
The objective of the invention is to: the shortcoming to above-mentioned prior art exists proposes a kind of water heater backwater circulation pump intelligence control method that temperature sensor can rationally be controlled hot water circuit that need not, thereby reduces equipment cost and installation cost.
In order to reach above purpose; Water heater backwater circulation pump intelligence control method of the present invention is in the circulatory system that is made up of water heater and hot water supply line as the thermal water source; Said water heater has self upper water benign environment temperature monitoring sensor and intelligence control circuit; The backwater circulation pump that is controlled by said intelligence control circuit is installed in the said hot water supply line; Said intelligence control circuit is under the water supply state at water heater, controls the start and stop of backwater circulation pump through following basic step:
Read step---the backwater circulation pump discharge and the pipeline heat radiation of reading input influence parameter (comprising hot water supply line length, pipeline heat insulation situation, pipe laying mode);
Calculation step---according to water heater top water temperature, environment temperature monitor value and read in data, calculate the hot water supply line respectively according to the thermodynamics formula and reduce to backwater circulation pump dwell time and the running time of setting minimum water temperature apart from water heater far-end water temperature;
Especially calculating the hot water supply line respectively by following concrete formula reduces to backwater circulation pump dwell time and the running time of setting minimum water temperature apart from water heater far-end water temperature:
Backwater circulation pump dwell time:
Figure 2011102018701100002DEST_PATH_IMAGE002
Figure 2011102018701100002DEST_PATH_IMAGE006
Figure 2011102018701100002DEST_PATH_IMAGE008
The backwater circulation pump operation time:
Figure 2011102018701100002DEST_PATH_IMAGE010
When the hot water supply line is walked pipe well:
Figure 2011102018701100002DEST_PATH_IMAGE012
When the hot water supply line buries wall and walks:
Figure 2011102018701100002DEST_PATH_IMAGE016
Figure 2011102018701100002DEST_PATH_IMAGE018
The implication and the unit of each letter representative are following in the aforementioned calculation formula:
Parameter The parameter code Parameter unit
The water pipe external diameter
Figure 2011102018701100002DEST_PATH_IMAGE022
The water pipe internal diameter
Figure 2011102018701100002DEST_PATH_IMAGE024
Length of pipe
Figure 2011102018701100002DEST_PATH_IMAGE028
The backwater circulation pump discharge
Figure 2011102018701100002DEST_PATH_IMAGE032
The water pipe thermal conductivity factor
Figure 2011102018701100002DEST_PATH_IMAGE034
Figure 2011102018701100002DEST_PATH_IMAGE036
The insulating tube thermal conductivity factor
Figure 41974DEST_PATH_IMAGE036
Heat conductivity of normal concrete
Figure 2011102018701100002DEST_PATH_IMAGE040
Figure 19507DEST_PATH_IMAGE036
Insulating tube thickness
Figure 2011102018701100002DEST_PATH_IMAGE042
Figure 544029DEST_PATH_IMAGE022
Concrete thickness
Figure 2011102018701100002DEST_PATH_IMAGE044
Figure 829517DEST_PATH_IMAGE022
Specific heat of water
Figure 2011102018701100002DEST_PATH_IMAGE046
Figure 2011102018701100002DEST_PATH_IMAGE048
The density of water
Figure 2011102018701100002DEST_PATH_IMAGE050
Figure 2011102018701100002DEST_PATH_IMAGE052
Water capacity in the water lines
Figure 2011102018701100002DEST_PATH_IMAGE054
Figure 2011102018701100002DEST_PATH_IMAGE056
The water pipe overall heat-transfer coefficient
Figure 2011102018701100002DEST_PATH_IMAGE058
Figure 2011102018701100002DEST_PATH_IMAGE060
The water pipe area of dissipation
Figure 2011102018701100002DEST_PATH_IMAGE062
Backwater circulation pump dwell time
Figure 2011102018701100002DEST_PATH_IMAGE066
Figure 2011102018701100002DEST_PATH_IMAGE068
The backwater circulation pump operation time
Figure 2011102018701100002DEST_PATH_IMAGE070
Figure 97687DEST_PATH_IMAGE068
The water tank upper water temperature
Figure 2011102018701100002DEST_PATH_IMAGE072
 ℃
Circulating pump backwater start-up temperature
Figure 2011102018701100002DEST_PATH_IMAGE074
 ℃
Environment temperature
Figure 2011102018701100002DEST_PATH_IMAGE076
 ℃
The control step---according to the backwater circulation pump operation and the dwell time that calculate, control the operation of backwater circulation pump respectively and stop.
According to the heat conservation law, the heat dissipation capacity of water equals certain hour inner tubal wall heat flow in the hot water supply line, and for specific hot water supply line, its heat flow can be known.In view of the above; Temperature (temperature of this moment should equal the water temperature in exit, water-heater water tank top) when out of service drops to the time that minimum water temperature experienced that the user sets on demand by last backwater circulation pump apart from water heater far-end water temperature as long as obtain in the pipeline, is backwater circulation pump dwell time.After this, also keep making the hot water on water-heater water tank top be transported to the time of hot water supply line, can confirm the backwater circulation pump operation time apart from the water heater far-end as long as start the backwater circulation pump.Concrete computing formula can be with reference to above-mentioned formula, also can derive voluntarily according to the hot water opinion of studying the science.
This shows; As long as after installing, the heat radiation of importing specific hot water supply line has related parameter, can be by the original intelligence control circuit of water heater; Calculate backwater circulation pump operation and dwell time; In view of the above to the in addition start and stop control of backwater circulation pump, can under most economical situation, realize the plug and play of hot water again.
Description of drawings
Below in conjunction with accompanying drawing the present invention is further described.
Fig. 1 is the structural representation of the embodiment of the invention one.
Fig. 2 is the control procedure flow chart of embodiment one.
The specific embodiment
Embodiment one
The water heater backwater circulation pump intelligence control method of present embodiment is in system shown in Figure 1; Water heater 1 as the thermal water source has self upper water benign environment temperature monitoring sensor and intelligence control circuit (not shown); Hot is through stop valve 2 in hot water output; To with parallelly connected wash the dishes, do washing, wash one's face, bathing tap 3,4,5,6 hot-water supplies, and constitute circulating backwater back loops through the backwater circulation pump 7 and the check valve 8 that are controlled by intelligence control circuit are installed in the pipeline.Cool is the cold water water inlet among the figure, the 9th, and unidirectional relief valve, the 10th, the temperature, pressure safety valve in the water heater, these are all basic identical with prior art.Intelligence control circuit is under the water supply state at water heater, and is as shown in Figure 2, controls the start and stop of backwater circulation pump through following concrete steps:
Read step---the backwater circulation pump discharge and the pipeline heat radiation of reading the input of water heater guidance panel influence parameter, comprise that pipeline caliber D1, pipeline length L, pipeline have or not insulation, paving mode etc.; Simultaneously read sensor monitor water tank upper temperature T upper and environment temperature Tambient (being Tam).
Determining step---judge relatively successively whether water tank upper temperature T upper is higher than 35 ℃ of the permission starting mode of pump temperature of setting, whether be higher than setting circulating pump backwater start-up temperature Tpump (preestablishing), whether be higher than environment temperature Tam; And whether circulating pump backwater start-up temperature Tpump is higher than environment temperature Tam; Have only when above comparative result and be when being; Get into next step, otherwise return a step; Can effectively prevent the cold water circulation like this, guarantee to remain hot water in the system water supply pipeline; Reduce the startup frequency and the running time of water pump simultaneously, realized the economical operation of water pump, effectively prolonged the service life of water pump, reduced the water pump operation energy consumption.
Calculation step---according to water heater top water temperature, environment temperature monitor value and read in data, calculate the hot water supply line respectively according to following concrete formula and reduce to backwater circulation pump dwell time and the running time of setting minimum water temperature apart from water heater far-end water temperature:
Backwater circulation pump dwell time:
Figure 683390DEST_PATH_IMAGE002
Figure 644392DEST_PATH_IMAGE004
Figure 886018DEST_PATH_IMAGE006
Figure 944497DEST_PATH_IMAGE008
The backwater circulation pump operation time:
Figure 587968DEST_PATH_IMAGE010
When the hot water supply line is walked pipe well:
Figure 714373DEST_PATH_IMAGE014
When the hot water supply line buries wall and walks:
Figure 793187DEST_PATH_IMAGE016
The implication and the unit of each letter representative are following in the aforementioned calculation formula:
Parameter The parameter code Parameter unit
The water pipe external diameter
Figure 875861DEST_PATH_IMAGE020
Figure 826500DEST_PATH_IMAGE022
The water pipe internal diameter
Figure 240163DEST_PATH_IMAGE024
Length of pipe
Figure 66354DEST_PATH_IMAGE026
Figure 35447DEST_PATH_IMAGE028
The backwater circulation pump discharge
Figure 456064DEST_PATH_IMAGE030
Figure 709060DEST_PATH_IMAGE032
The water pipe thermal conductivity factor
Figure 353668DEST_PATH_IMAGE034
Figure 278898DEST_PATH_IMAGE036
The insulating tube thermal conductivity factor
Figure 34365DEST_PATH_IMAGE038
Figure 95862DEST_PATH_IMAGE036
Heat conductivity of normal concrete
Figure 911371DEST_PATH_IMAGE040
Insulating tube thickness
Figure 633787DEST_PATH_IMAGE042
Figure 346528DEST_PATH_IMAGE022
Concrete thickness
Figure 967183DEST_PATH_IMAGE022
Specific heat of water
Figure 155335DEST_PATH_IMAGE048
The density of water
Figure 515909DEST_PATH_IMAGE050
Water capacity in the water lines
Figure 803988DEST_PATH_IMAGE054
Figure 225742DEST_PATH_IMAGE056
The water pipe overall heat-transfer coefficient
Figure 553955DEST_PATH_IMAGE058
Figure 162791DEST_PATH_IMAGE060
The water pipe area of dissipation
Figure 618175DEST_PATH_IMAGE062
Figure 160014DEST_PATH_IMAGE064
Backwater circulation pump dwell time
Figure 127970DEST_PATH_IMAGE066
Figure 755261DEST_PATH_IMAGE068
The backwater circulation pump operation time
Figure 466865DEST_PATH_IMAGE070
Figure 863211DEST_PATH_IMAGE068
The water tank upper water temperature
Figure 782494DEST_PATH_IMAGE072
 ℃
Circulating pump backwater start-up temperature
Figure 365923DEST_PATH_IMAGE074
 ℃
Environment temperature
Figure 146797DEST_PATH_IMAGE076
 ℃
The control step---according to the backwater circulation pump operation and the dwell time that calculate, control the operation of backwater circulation pump respectively and stop.
In the control backwater circulation pump operation process of control step; Relatively whether to be lower than circulating pump backwater start-up temperature be the lower limit temperature whether Tupper≤Tpump or water tank upper temperature are lower than setting to the water tank upper temperature, i.e. Tupper＜33 ℃, in this way; Then stop to return read step behind the backwater circulation pump; Can effectively prevent cold water circulation like this, guarantee to remain hot water in the system water supply pipeline, reduce water pump unnecessary running time simultaneously; Realize the economical operation of water pump, further reduce the water pump operation energy consumption.
As not continuing the control step, judge whether to reach running time, whether reach dwell time etc. afterwards, see Fig. 2 for details.
The backwater circulation pump of present embodiment stops and basis heat conservation law running time; Promptly the heat dissipation capacity of water equals certain hour inner tubal wall heat flow in the pipe; In the water pipe water temperature by last backwater circulation pump when out of service the coolant-temperature gage in exit, water-heater water tank top drop to the time that is higher than the desired minimum water temperature of user, be backwater circulation pump dwell time.So ten minutes science.After experiment showed, the employing present embodiment, have following outstanding advantage:
1) the on-the-spot installation simply; Need not the backwater circulation pump establishing the return water temperature sensor line in addition or select expensive band temperature sensor; Avoided of the influence of temperature sensor integrity problem to system, reduced simultaneously since the installation man's activity factor that the difference of applied environment causes to error that return water system produced.
2) owing to the backwater circulation pump that need not the return water temperature sensor line to be set or to select expensive band temperature sensor, and need not to increase hardware, can reduce equipment cost and installation cost.
3) complete Based Intelligent Control, operation in case completion is set, need not to change backwater circulation pump setup parameter automatically, and is easy to use.
4) accurately control the operation and the dwell time of backwater circulation pump, realized the optimal economic operation of backwater circulation pump, reduce backwater circulation pump operation energy consumption.
5) comfort is high, really accomplishes the hot water plug and play.
Except that the foregoing description, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of requirement of the present invention.

Claims (4)

1. water heater backwater circulation pump intelligence control method; In the circulatory system that constitutes by water heater and hot water supply line as the thermal water source; Said water heater has self upper water benign environment temperature monitoring sensor and intelligence control circuit; It is characterized in that: the backwater circulation pump that is controlled by said intelligence control circuit is installed in the said hot water supply line, and said intelligence control circuit is under the water supply state at water heater, controls the start and stop of backwater circulation pump through following steps:
Read step---the backwater circulation pump discharge and the pipeline heat radiation of reading input influence parameter;
Calculation step---according to water heater top water temperature, environment temperature monitor value and read in data, calculate the hot water supply line respectively according to the thermodynamics formula and reduce to backwater circulation pump dwell time and the running time of setting minimum water temperature apart from water heater far-end water temperature;
The control step---according to the backwater circulation pump operation and the dwell time that calculate, control the operation of backwater circulation pump respectively and stop.
2. according to the said water heater backwater circulation of claim 1 pump intelligence control method, it is characterized in that: said calculation step is specifically calculated the hot water supply line respectively according to following formula and is reduced to backwater circulation pump dwell time and the running time of setting minimum water temperature apart from water heater far-end water temperature:
Backwater circulation pump dwell time:
Figure 2011102018701100001DEST_PATH_IMAGE001
Figure 203726DEST_PATH_IMAGE002
Figure 2011102018701100001DEST_PATH_IMAGE003
Figure 146709DEST_PATH_IMAGE004
The backwater circulation pump operation time:
Figure 2011102018701100001DEST_PATH_IMAGE005
When the hot water supply line is walked pipe well:
Figure 661967DEST_PATH_IMAGE006
Figure 2011102018701100001DEST_PATH_IMAGE007
When the hot water supply line buries wall and walks:
Figure 294597DEST_PATH_IMAGE008
Figure 2011102018701100001DEST_PATH_IMAGE009
The implication and the unit of each letter representative are following in the aforementioned calculation formula:
Parameter The parameter code Parameter unit The water pipe external diameter
Figure 469399DEST_PATH_IMAGE010
Figure 2011102018701100001DEST_PATH_IMAGE011
 The water pipe internal diameter
Figure 489534DEST_PATH_IMAGE012
Figure 320259DEST_PATH_IMAGE011
 Length of pipe
Figure 920094DEST_PATH_IMAGE014
 The backwater circulation pump discharge
Figure 2011102018701100001DEST_PATH_IMAGE015
Figure 247605DEST_PATH_IMAGE016
 The water pipe thermal conductivity factor
Figure 2011102018701100001DEST_PATH_IMAGE017
Figure 596691DEST_PATH_IMAGE018
 The insulating tube thermal conductivity factor
Figure 2011102018701100001DEST_PATH_IMAGE019
Figure 968240DEST_PATH_IMAGE018
 Heat conductivity of normal concrete
Figure 363449DEST_PATH_IMAGE020
Figure 247264DEST_PATH_IMAGE018
 Insulating tube thickness
Figure 2011102018701100001DEST_PATH_IMAGE021
Figure 874781DEST_PATH_IMAGE011
 Concrete thickness
Figure 680098DEST_PATH_IMAGE022
Figure 621735DEST_PATH_IMAGE011
 Specific heat of water
Figure 2011102018701100001DEST_PATH_IMAGE023
Figure 658259DEST_PATH_IMAGE024
 The density of water
Figure 2011102018701100001DEST_PATH_IMAGE025
 Water capacity in the water lines
Figure 2011102018701100001DEST_PATH_IMAGE027
Figure 869057DEST_PATH_IMAGE028
 The water pipe overall heat-transfer coefficient
Figure 267323DEST_PATH_IMAGE030
 The water pipe area of dissipation
Figure DEST_PATH_IMAGE031
Figure 330183DEST_PATH_IMAGE032
 Backwater circulation pump dwell time
Figure 2011102018701100001DEST_PATH_IMAGE033
 The backwater circulation pump operation time
Figure DEST_PATH_IMAGE035
Figure 17095DEST_PATH_IMAGE034
 The water tank upper water temperature
Figure 191022DEST_PATH_IMAGE036
 ℃ Backwater circulation blowback water start-up temperature
Figure DEST_PATH_IMAGE037
 ℃ Environment temperature
Figure 279027DEST_PATH_IMAGE038
 ℃
According to the said water heater backwater circulation of claim 2 pump intelligence control method, it is characterized in that: also have between said read step and the calculation step
Determining step---judge relatively successively whether the water tank upper temperature is higher than the permission starting mode of pump temperature of setting, whether be higher than setting circulating pump backwater start-up temperature, whether be higher than environment temperature; And whether circulating pump backwater start-up temperature is higher than environment temperature; When above comparative result is when being; Get into calculation step, otherwise return read step.
3. according to the said water heater backwater circulation of claim 3 pump intelligence control method; It is characterized in that: in the control backwater circulation pump operation process of said control step; Comprise also whether comparison water tank upper temperature is lower than the lower limit temperature whether circulating pump backwater start-up temperature or water tank upper temperature are lower than setting; In this way, then stop to return read step behind the backwater circulation pump, as otherwise continue the control step.
4. according to the said water heater backwater circulation of claim 4 pump intelligence control method, it is characterized in that: the heat radiation of backwater circulation pump discharge and pipeline influences parameter and comprises hot water supply line length, pipeline heat insulation situation, pipe laying mode in the said read step.
CN 201110201870 2011-07-19 2011-07-19 Intelligent control method of water heater return circulating pump Active CN102305474B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201110201870 CN102305474B (en) 2011-07-19 2011-07-19 Intelligent control method of water heater return circulating pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201110201870 CN102305474B (en) 2011-07-19 2011-07-19 Intelligent control method of water heater return circulating pump

Publications (2)

Publication Number Publication Date
CN102305474A true CN102305474A (en) 2012-01-04
CN102305474B CN102305474B (en) 2013-07-31

Family

ID=45379362

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201110201870 Active CN102305474B (en) 2011-07-19 2011-07-19 Intelligent control method of water heater return circulating pump

Country Status (1)

Country Link
CN (1) CN102305474B (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104296387A (en) * 2013-07-19 2015-01-21 珠海格力电器股份有限公司 Water heater control method and system
CN104697177A (en) * 2015-02-09 2015-06-10 芜湖美的厨卫电器制造有限公司 Water heater as well as control method and control system thereof
CN107091495A (en) * 2017-04-24 2017-08-25 广东美的暖通设备有限公司 Hot-water heating system control method, hot-water heating system and computer-readable recording medium
CN108088069A (en) * 2017-12-07 2018-05-29 成都前锋电子有限责任公司 A kind of energy saving gas burning water heater for possessing pre- hot function, heating system and method
CN108088070A (en) * 2017-12-07 2018-05-29 成都前锋电子有限责任公司 A kind of Intelligent preheating gas heater and its subsystem and implementation method
CN108562047A (en) * 2018-02-14 2018-09-21 艾欧史密斯(中国)热水器有限公司 Water route module, hot-water heating system and control method
CN108954844A (en) * 2018-07-13 2018-12-07 苏州韵之秋智能科技有限公司 A kind of water heater with water-saving return flow line
CN109323459A (en) * 2018-09-06 2019-02-12 珠海格力电器股份有限公司 Waterway system and control method thereof
CN110274301A (en) * 2018-03-14 2019-09-24 东莞市三临机电有限公司 A kind of energy-saving and environment-friendly hot-water supply device
CN111263922A (en) * 2017-10-23 2020-06-09 栗田工业株式会社 Water temperature control method and system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11211120A (en) * 1998-01-27 1999-08-06 Inax Corp Method for controlling circulating pump of hot water supply device
CN1808321A (en) * 2005-10-21 2006-07-26 艾欧史密斯(中国)热水器有限公司 Electrical water heater capable of precisely controlling water amount and temperature, and control method thereof
CN101082431A (en) * 2007-07-30 2007-12-05 童根荣 Method and device for controlling instantaneously heated type convective circulation type solar water heater
KR20110032748A (en) * 2009-09-24 2011-03-30 주식회사 경동네트웍 The control method of the temperature of hot water using the operation of circulation pump

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11211120A (en) * 1998-01-27 1999-08-06 Inax Corp Method for controlling circulating pump of hot water supply device
CN1808321A (en) * 2005-10-21 2006-07-26 艾欧史密斯(中国)热水器有限公司 Electrical water heater capable of precisely controlling water amount and temperature, and control method thereof
CN101082431A (en) * 2007-07-30 2007-12-05 童根荣 Method and device for controlling instantaneously heated type convective circulation type solar water heater
KR20110032748A (en) * 2009-09-24 2011-03-30 주식회사 경동네트웍 The control method of the temperature of hot water using the operation of circulation pump

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104296387A (en) * 2013-07-19 2015-01-21 珠海格力电器股份有限公司 Water heater control method and system
CN104697177A (en) * 2015-02-09 2015-06-10 芜湖美的厨卫电器制造有限公司 Water heater as well as control method and control system thereof
CN107091495A (en) * 2017-04-24 2017-08-25 广东美的暖通设备有限公司 Hot-water heating system control method, hot-water heating system and computer-readable recording medium
CN111263922A (en) * 2017-10-23 2020-06-09 栗田工业株式会社 Water temperature control method and system
CN108088069A (en) * 2017-12-07 2018-05-29 成都前锋电子有限责任公司 A kind of energy saving gas burning water heater for possessing pre- hot function, heating system and method
CN108088070A (en) * 2017-12-07 2018-05-29 成都前锋电子有限责任公司 A kind of Intelligent preheating gas heater and its subsystem and implementation method
CN108562047A (en) * 2018-02-14 2018-09-21 艾欧史密斯(中国)热水器有限公司 Water route module, hot-water heating system and control method
CN110274301A (en) * 2018-03-14 2019-09-24 东莞市三临机电有限公司 A kind of energy-saving and environment-friendly hot-water supply device
CN110274301B (en) * 2018-03-14 2021-08-06 东莞市三临机电有限公司 Energy-saving and environment-friendly hot water supply device
CN108954844A (en) * 2018-07-13 2018-12-07 苏州韵之秋智能科技有限公司 A kind of water heater with water-saving return flow line
CN109323459A (en) * 2018-09-06 2019-02-12 珠海格力电器股份有限公司 Waterway system and control method thereof

Also Published As

Publication number Publication date
CN102305474B (en) 2013-07-31

Similar Documents

Publication Publication Date Title
CN102305474B (en) Intelligent control method of water heater return circulating pump
US10408495B2 (en) Companion water heater
CN103090547B (en) The control method of gas-heating water heater
CN102705980B (en) Device with heating and water-heating device multi-machine parallel system and use method thereof
WO2010111114A2 (en) System and method for controlling hydronic systems having multiple sources and multiple loads
EP2136152B1 (en) Heating System
KR100985391B1 (en) Control Method according to change of heating load in individual heating control system and individual heating control system using the method
CN102997443B (en) Optimal control method for heat pump-gas water heater combination
KR200471736Y1 (en) A heated room and hot water controlling system
CN105102897B (en) Embedded heating solar heat accumulation collector
CN103983021A (en) Heat-pump water heater and control method and device for same
JP6193740B2 (en) Hot water storage water heater
CN202853103U (en) Device with heating water heater multimachine parallel system
CN108548212A (en) The heat balance control method of earth source heat pump and gas fired-boiler composite energy supply regulatory region
JP6513498B2 (en) Hot water supply system
SU736887A3 (en) Method and device for control of heat-transferring unit preferably with circulating heat-carrier
US20190285312A1 (en) Water heater appliance and methods of operation
JP5556728B2 (en) Hot water storage water heater
US20210329741A1 (en) Water heater appliances and methods for delayed activation
JP2013036709A (en) Water heating apparatus
JP6998778B2 (en) Immediate hot water discharge device
RU2724474C2 (en) Improved combined boiler and associated device for increasing combined boiler efficiency
JP2014137215A (en) Hot water control system
JP2015055366A (en) Storage water heater
KR20120126038A (en) Heat Pipes Electric Boiler

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant