CN108151324A - Control method of instant water heater - Google Patents

Control method of instant water heater Download PDF

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Publication number
CN108151324A
CN108151324A CN201711351264.1A CN201711351264A CN108151324A CN 108151324 A CN108151324 A CN 108151324A CN 201711351264 A CN201711351264 A CN 201711351264A CN 108151324 A CN108151324 A CN 108151324A
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CN
China
Prior art keywords
temperature
power
water
water heater
heating
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.)
Pending
Application number
CN201711351264.1A
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Chinese (zh)
Inventor
陈李胜
邓宇华
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.)
University of Electronic Science and Technology of China Zhongshan Institute
Original Assignee
University of Electronic Science and Technology of China Zhongshan Institute
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 University of Electronic Science and Technology of China Zhongshan Institute filed Critical University of Electronic Science and Technology of China Zhongshan Institute
Priority to CN201711351264.1A priority Critical patent/CN108151324A/en
Publication of CN108151324A publication Critical patent/CN108151324A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/20—Arrangement or mounting of control or safety devices
    • F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
    • F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
    • F24H9/2028—Continuous-flow heaters

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)

Abstract

The invention discloses a control method of an instant water heater, which comprises the following steps: rated power P of water heater0Dividing into N equal parts, firstly adopting NiHeating at partial power, and calculating water temperature T1And inlet water temperature T0Difference value Δ ofTkThen calculate the temperature rise Δ T per poweriFinally, the set temperature T is calculatedPRequired power fraction NTThe required heating power P can be calculatedTThe control of the water outlet temperature of the instant water heater can be completed only by acquiring the water inlet temperature and the water outlet temperature, the number of parameter acquisition devices is small, the circuit structure is simple, the control device can be self-adaptive to different power supply voltages, different heating bodies, different water flows and the like, the temperature control is accurate, and the production cost of products can be effectively reduced.

Description

A kind of control method of immediately heating water heater
Technical field
The present invention relates to a kind of water heater, particularly a kind of method for heating and controlling of immediately heating water heater.
Background technology
The patent document of Publication No. " CN103176490A " discloses a kind of " intelligence of instant heating type heating body leaving water temperature Control method ", acquire tank temperature, and according to the density of water, specific heat capacity, internal resistance, thermal conversion efficiency, go out flow Amount, leaving water temperature and supply voltage etc. control the duty ratio of PWM, so as to reach control leaving water temperature by a series of calculating Purpose, on the one hand the parameter needed for it is more, and calculating process is relatively complicated, and by the shadow of parameter acquisition device self performance It rings, there are larger deviations for calculation amount and actual amount（±3°C）, on the other hand, circuit structure is complicated, of high cost.
Invention content
For overcome the deficiencies in the prior art, a kind of parameter acquisition device of present invention offer is few, and circuit structure is simple, temperature Control the control method of accurately immediately heating water heater.
The technical solution adopted by the present invention to solve the technical problems is：
A kind of control method of immediately heating water heater, this method are：By the rated power P of water heater0It is divided into N equal portions, first uses NiPart power heating, calculates leaving water temperature T1With inflow temperature T0Difference DELTA Tk；
ΔTk= T1- T0；
Then the temperature for calculating every part of power rises Δ Ti；
ΔTi=ΔTk/Ni；
Calculate set temperature TPRequired power number NT；
NT=[（TP- T0）/ΔTi]；
Then set temperature TPRequired heating power PT；
PT= [P0/N]*[（TP- T0）/ΔTi]。
The beneficial effects of the invention are as follows：The present invention only needs to acquire inflow temperature and leaving water temperature can be completed to instant heating type The leaving water temperature control of water heater, parameter acquisition device is few, and circuit structure is simple, being capable of adaptive different supply voltage, no Same calandria, different water flows etc., temperature control is accurate, can effectively reduce the production cost of product.
Specific embodiment
A kind of control method of immediately heating water heater, this method are：By the rated power P of water heater0It is divided into N equal portions（Such as 10KW is divided into 500 parts, then every part of corresponding power is 20W, waits numbers much more accurate）, first using NiPart（Such as 200 parts） Power heats, and calculates leaving water temperature T1With inflow temperature T0Difference DELTA Tk（The moisture storage capacity of immediately heating water heater is seldom, from water inlet Time to water outlet is shorter, temperature and the maintenance that can reach setting in generally after powering 4-10 seconds）；
ΔTk= T1- T0；
Then the temperature for calculating every part of power rises Δ Ti；
ΔTi=ΔTk/Ni；
Calculate set temperature TPRequired power number NT；
NT=[（TP- T0）/ΔTi]；
Then set temperature TPRequired heating power PT；
PT= [P0/N]*[（TP- T0）/ΔTi]。
The control method of the present invention can adapt to the calandria of PWM controls, the calandria of control of silicion controlled voltage regulator or frequency conversion Calandria of control etc., such as the duty ratio of PWM and the heating power P of water heaterTAnd power number NTRelationship be fixed, know Road heating power PTOr power number NTAlso it has been known that the duty ratio of PWM, has realized that change adds by the duty ratio for controlling PWM Thermal power, it is only necessary to acquire inflow temperature and leaving water temperature can be completed and control the leaving water temperature of immediately heating water heater, relatively In the technical solution of " CN103176490A ", the devices such as flow sensor, voltage collector are omitted, parameter acquisition device is few, Circuit structure is simple, can adaptive different supply voltage, different calandrias, different water flows etc., temperature control essence Standard can effectively reduce the production cost of product.

Claims (1)

1. a kind of control method of immediately heating water heater, it is characterised in that this method is：By the rated power P of water heater0It is divided into N Equal portions, first using NiPart power heating, calculates leaving water temperature T1With inflow temperature T0Difference DELTA Tk；
ΔTk= T1- T0；
Then the temperature for calculating every part of power rises Δ Ti；
ΔTi=ΔTk/Ni；
Calculate set temperature TPRequired power number NT；
NT=[（TP- T0）/ΔTi]。
CN201711351264.1A 2017-12-15 2017-12-15 Control method of instant water heater Pending CN108151324A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711351264.1A CN108151324A (en) 2017-12-15 2017-12-15 Control method of instant water heater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711351264.1A CN108151324A (en) 2017-12-15 2017-12-15 Control method of instant water heater

Publications (1)

Publication Number Publication Date
CN108151324A true CN108151324A (en) 2018-06-12

Family

ID=62467348

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711351264.1A Pending CN108151324A (en) 2017-12-15 2017-12-15 Control method of instant water heater

Country Status (1)

Country Link
CN (1) CN108151324A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109357410A (en) * 2018-09-19 2019-02-19 厦门恒节康科技有限公司 A kind of method for heating and controlling of electronic water closet and its instantaneously heated type heater
CN111631600A (en) * 2020-06-08 2020-09-08 杭州老板电器股份有限公司 Water temperature adjusting and controlling method and device, pipeline water dispenser and water dispenser device
CN112051869A (en) * 2020-08-13 2020-12-08 大悦创新（苏州）医疗科技股份有限公司 Water temperature control method of colon hydrotherapy instrument and colon hydrotherapy instrument
CN112066562A (en) * 2020-08-18 2020-12-11 深圳市合信达控制系统有限公司 Method and device for identifying working mode of water heater and water heater
CN112484311A (en) * 2020-12-03 2021-03-12 芜湖美的厨卫电器制造有限公司 Control method and device for water heater, water heater and processor
CN114251833A (en) * 2021-08-24 2022-03-29 佛山市顺德区美的饮水机制造有限公司 Instantaneous heating device, regulation and control method and regulation and control device thereof, water treatment device and medium
CN114251826A (en) * 2021-08-24 2022-03-29 佛山市顺德区美的饮水机制造有限公司 Instantaneous heating device, control method and control device thereof, water treatment device and medium
CN114264074A (en) * 2021-08-24 2022-04-01 佛山市顺德区美的饮水机制造有限公司 Instant heating assembly, regulating method and regulating device thereof, water treatment equipment and medium
CN114459144A (en) * 2022-02-15 2022-05-10 佛山市顺德区美的饮水机制造有限公司 Instantaneous heating device, control method and device thereof, water treatment device and storage medium

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KR20050017973A (en) * 2003-08-12 2005-02-23 주식회사 엔텍 Clean Water Device Capable Of Setting Water Temperature
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CN101825342A (en) * 2010-05-18 2010-09-08 上海天剑电磁技术有限公司 Water temperature control method of instant heating type electromagnetic induction water heater
WO2013029364A1 (en) * 2011-08-26 2013-03-07 Chen Xiaoming Method and device for quick preparation of high-quality hot water
CN104075371A (en) * 2013-03-26 2014-10-01 广东美的环境电器制造有限公司 Electric heater and control method thereof
CN105865033A (en) * 2015-01-19 2016-08-17 福建斯狄渢电开水器有限公司 Water temperature control method of water boiler
CN106774529A (en) * 2017-03-20 2017-05-31 泉州科牧智能厨卫有限公司 A kind of method for heating and controlling of instant-heating-type constant-temperature water outlet

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Publication number Priority date Publication date Assignee Title
KR20050017973A (en) * 2003-08-12 2005-02-23 주식회사 엔텍 Clean Water Device Capable Of Setting Water Temperature
CN201177768Y (en) * 2007-12-19 2009-01-07 白勇 Thermostatic control apparatus for electric water heater
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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109357410A (en) * 2018-09-19 2019-02-19 厦门恒节康科技有限公司 A kind of method for heating and controlling of electronic water closet and its instantaneously heated type heater
CN109357410B (en) * 2018-09-19 2021-04-13 厦门恒节康科技有限公司 Electronic toilet and heating control method of instant heating type heater of electronic toilet
CN111631600A (en) * 2020-06-08 2020-09-08 杭州老板电器股份有限公司 Water temperature adjusting and controlling method and device, pipeline water dispenser and water dispenser device
CN112051869A (en) * 2020-08-13 2020-12-08 大悦创新（苏州）医疗科技股份有限公司 Water temperature control method of colon hydrotherapy instrument and colon hydrotherapy instrument
CN112066562A (en) * 2020-08-18 2020-12-11 深圳市合信达控制系统有限公司 Method and device for identifying working mode of water heater and water heater
CN112484311A (en) * 2020-12-03 2021-03-12 芜湖美的厨卫电器制造有限公司 Control method and device for water heater, water heater and processor
CN112484311B (en) * 2020-12-03 2022-07-15 芜湖美的厨卫电器制造有限公司 Control method and device for water heater, water heater and processor
CN114251833A (en) * 2021-08-24 2022-03-29 佛山市顺德区美的饮水机制造有限公司 Instantaneous heating device, regulation and control method and regulation and control device thereof, water treatment device and medium
CN114251826A (en) * 2021-08-24 2022-03-29 佛山市顺德区美的饮水机制造有限公司 Instantaneous heating device, control method and control device thereof, water treatment device and medium
CN114264074A (en) * 2021-08-24 2022-04-01 佛山市顺德区美的饮水机制造有限公司 Instant heating assembly, regulating method and regulating device thereof, water treatment equipment and medium
CN114459144A (en) * 2022-02-15 2022-05-10 佛山市顺德区美的饮水机制造有限公司 Instantaneous heating device, control method and device thereof, water treatment device and storage medium

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Application publication date: 20180612

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