CN101149184A - Heat pump water heater hot-water temperature intelligent control method - Google Patents
Heat pump water heater hot-water temperature intelligent control method Download PDFInfo
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- CN101149184A CN101149184A CNA2007100294081A CN200710029408A CN101149184A CN 101149184 A CN101149184 A CN 101149184A CN A2007100294081 A CNA2007100294081 A CN A2007100294081A CN 200710029408 A CN200710029408 A CN 200710029408A CN 101149184 A CN101149184 A CN 101149184A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
This invention relates to the solar energy heat pump water heater technology field. It is a water temperature intelligent control method of heat pump water heater. The water temperature is automatically determined according to the environmental temperature. Compressor runs protection setting of hot water temperature, in order to determine the hot water producing temperature according to environmental temperature. When environmental temperature is too low, the compressor will not operate. The intelligent control of heat pump water heater can assist heating and stop the compressor when the upper limit of hot water producing temperature reaches. It starts assistant heating device and heats the water to the set temperature. This invention reduces the energy dissipation and protects the compressor.
Description
Technical field:
The present invention relates to the solar heat-pump water heater technical field, particularly a kind of intelligence control method of heat pump water heater hot-water temperature.
Background technology:
Teat pump boiler is a principle of utilizing heat pump, consumes a spot of electric energy acting by compressor, and by absorbing a large amount of heats in the external environment, it has following two characteristics:
(1) under the same temperature condition, the hot water temperature is low more, and Energy Efficiency Ratio is high more; The hot water temperature is high more, and Energy Efficiency Ratio is low more, and water yield unit of unit temperature rise energy consumption is big more.
(2) compressor all has certain working range, promptly environment temperature is all had certain restriction with the hot water temperature that can produce.Can not be too high or too low as environment temperature; Certain environment temperature is the highest water temperatures that can produce all also, exceed the shortening that the highest water temperature that can produce breaks down easily or causes service life of equipment.
General heat pump water heater hot-water temperature is that the people manually sets the back continuously effective, sets change again up to next time.Cause three problems therefrom: (1) each water temperature is set trouble, and when do not need high water temperature summer, often because the people is not provided with or untimely setting, the hot water energy consumption is significantly increased; (2) be used for than cryogenic region, higher if Teat pump boiler operation control hot water temperature sets when winter temperature is low, may exceed the working range of compressor, cause the damage of compressor easily or shorten service life of compressor; (3) the auxiliary heating of Teat pump boiler is manually controlled or simple timing controlled, can't realize Based Intelligent Control, may when heating, compressor operating assist heating also to start, cause the increase of compressor operating energy consumption, cause the reduction of heat pump Energy Efficiency Ratio, the increase of heat pump energy consumption and the increase of auxiliary heating energy consumption.
Summary of the invention:
The objective of the invention is to provide a kind of Energy Efficiency Ratio that improves system's operation at the deficiencies in the prior art, reduce system energy consumption, save administrative expenses, increase compressor service life, reduce heat pump auxiliaryly add the intelligence control method that heat, heat pump heat the high heat pump water heater hot-water temperature of water Energy Efficiency Ratio.
For achieving the above object, the present invention adopts following technical scheme:
A kind of intelligence control method of heat pump water heater hot-water temperature is characterized in that it realizes heat pump water heater hot-water temperature by following control method Based Intelligent Control:
Computing environment temperature hourly average value T
Flat during ringWith environment temperature day average T
Ring is flat: by a real-time testing environment temperature T of environment temperature sensor
Ring, by T
RingCalculate the environment temperature hourly average value T of every day
Flat during ringWith environment temperature day average T
Ring is flat
Require to produce the intelligent automatic setting of hot water temperature Th: can be divided into manual design temperature T1h of hot water and hot water automatic setting temperature T 2h, it is T1h or T2h that the hot water design temperature can be selected, T1h manually sets for the people, the setting range restriction is arranged, if setting exceeds setting range and then is set at default value, T2h is for adjusting the hot water temperature of setting automatically according to environment temperature;
The intelligent automatic setting of the made heat-obtaining coolant-temperature gage of compressor operating Tfh: according to the hot water temperature that environment temperature is provided with automatically, the operation of this temperature prioritised control compressor is to guarantee that compressor is in the operating mode scope;
The Based Intelligent Control of the auxiliary heating of Teat pump boiler: detect hot water temperature T in real time by hot water temperature's sensor
Heat, compare with Th or Tfh with it, with the start and stop of control compressor or auxiliary heating.
Described environment temperature hourly average value T
Flat during ringComputational methods be: according to detected ambient temperature, at (t+1) of every day (t+1) hour: 00 arithmetic mean of instantaneous value calculates t hour environment temperature mean value T
Flat t during ring, computing formula is
N in the formula---ambient temperature sampling number of times per hour.
Environment temperature mean value T by t hour every day
Flat t during ringThe highest hot water temperature Tfh that (t+1) hour compressor operating can be produced under determining.
Described environment temperature day average T
Ring is flatComputational methods are: by the typical environment mean temperature T of every day
Ring is flatDetermine second day hot water automatic setting temperature T 2h, according to environment temperature mean value T hourly
Flat t during ring, calculate the environment temperature mean value T of the previous day at the 00:00 of every day arithmetic mean of instantaneous value
Ring is flat, computing formula is
Environment temperature mean value T by the previous day
Ring is flatDetermine the health hot water temperature T h that will produce on the same day.
The described intelligent automatic setting method that requires to produce hot water temperature Th is: it passes through formula
Th in the formula---hot water automatic setting temperature, ℃;
Thl---the lower limit of hot water automatic setting temperature, ℃ (this value is adjustable, 20 ℃～55 ℃ of effective ranges, 48 ℃ of default values);
Thh---the upper limit of hot water automatic setting temperature, ℃ (this value is adjustable, 20 ℃～55 ℃ of effective ranges, 55 ℃ of default values);
T
Encircle flat u---require to produce hot water temperature's the pairing environment mean temperature of lower limit, 25 ℃;
T
Encircle flat L---require to produce hot water temperature's the pairing environment mean temperature of the upper limit, 18 ℃.
Set.
The intelligent automatic setting method that described compressor operating is controlled hot water temperature Tfh is: it passes through formula
Tfh in the formula---compressor operating control hot water temperature, ℃;
T1ph---the compressor operating protection hot water temperature upper limit, 55 ℃;
T2ph---compressor operating protection hot water temperature lower limit, 35 ℃;
Tmaxh---specific environment temperature conditions lower compression machine moves the highest hot water temperature that produces, ℃;
T
Flat U during ring---5 ℃ of pairing hour environment mean temperatures of the compressor operating protection hot water temperature upper limit;
T
Flat L during ring---pairing hour environment mean temperature of compressor operating protection hot water temperature's lower limit ,-10 ℃; Set.
The method for controlling opening and closing of the auxiliary heating of described Teat pump boiler is:
As pairing hour environment mean temperature of compressor operating protection hot water temperature's upper limit T
Flat during ring＜-10 ℃ and hot water temperature T
Heat＜Th-3 ℃, heat water and open, open the auxiliary electrical heating; Or as pairing hour environment mean temperature of 5 ℃ 〉=compressor operating protection hot water temperature's upper limit T
Flat during ring〉=-10 ℃ and hot water temperature T
Heat＜Th-5 ℃ and compressor are out of service, heat water and open, and open the auxiliary electrical heating.
The shut control method of the auxiliary heating of described Teat pump boiler is: heat or hot water temperature T when closing
Heat〉=Th or pairing hour environment mean temperature of compressor operating protection hot water temperature's upper limit T
Flat during ringWhen＞5 ℃ or compressor start heating operation, the auxiliary heating of Teat pump boiler is closed.
Beneficial effect of the present invention is: a kind of intelligence control method of heat pump water heater hot-water temperature has hot water temperature's automatic setting, compressor operating hot water temperature's protection setting, the function of the auxiliary Based Intelligent Control that heats of Teat pump boiler.Hot water temperature's automatic setting can be determined the hot water temperature automatically according to the difference of environment temperature.This function is satisfying under the situation of comfort level, by reducing the hot water temperature, improves Energy Efficiency Ratio, cuts down the consumption of energy.
Compressor operating hot water temperature's protection is set can determine that according to environment temperature the operation of compressor heats coolant-temperature gage automatically, and compressor does not move when hanging down when environment temperature is crossed.
The controlled system compressor of Based Intelligent Control of the auxiliary heating of Teat pump boiler starts assisted heating device simultaneously hot water is heated to design temperature reaching out of service on the hot water temperature that compressor can produce in limited time.This function has reduced the auxiliary heating energy consumption of system, has reduced the energy consumption of compression mechanism hot water, has protected compressor simultaneously again.
The specific embodiment:
Below the present invention is further illustrated, a kind of intelligence control method of heat pump water heater hot-water temperature, controller must be joined an environment temperature sensor, hot water temperature's sensor, controller need have 24 hours the system time clock feature.It realizes the Based Intelligent Control of heat pump water heater hot-water temperature by following control method:
(1), computing environment temperature hourly average value T
Flat during ringWith environment temperature day average T
Ring is flat: by a real-time testing environment temperature T of environment temperature sensor
Ring, by T
RingCalculate the environment temperature hourly average value T of every day
Flat during ringWith environment temperature day average T
Ring is flatAccording to detected ambient temperature, at (t+1) of every day (t+1) hour: 00 arithmetic mean of instantaneous value calculates t hour environment temperature mean value T
Flat t during ring
N in the formula---ambient temperature sampling number of times per hour.
Environment temperature mean value T by t hour every day
Flat t during ringThe highest hot water temperature Tfh that (t+1) hour compressor operating can be produced under determining.
Typical environment mean temperature T by every day
Ring is flatDetermine second day hot water automatic setting temperature T 2h.
According to environment temperature mean value T hourly
Flat t during ring, calculate the environment temperature mean value T of the previous day at the 00:00 of every day arithmetic mean of instantaneous value
Ring is flat
Environment temperature mean value T by the previous day
Ring is flatDetermine the health hot water temperature T h that will produce on the same day.
(2), require to produce the intelligent automatic setting of hot water temperature Th: can be divided into manual design temperature T1h of hot water and hot water automatic setting temperature T 2h, it is T1h or T2h that the hot water design temperature can be selected, T1h manually sets for the people, the setting range restriction is arranged, if setting exceeds setting range and then is set at default value, T2h is for adjusting the hot water temperature of setting automatically according to environment temperature.According to the require characteristics of human body to the health hot water temperature, to the reasonable automatic setting of hot water temperature, when temperature is high, reduce the hot water temperature who is produced according to environment temperature automatically, when temperature is low, heighten the hot water temperature who is produced automatically.Environment temperature mean value T by the same day
Ring is flatThe hot water temperature who determined to produce in second day.Its intelligent automatic setting method is: it passes through formula
Th in the formula---hot water automatic setting temperature, ℃;
Thl---the lower limit of hot water automatic setting temperature, ℃ (this value is adjustable, 20 ℃～55 ℃ of effective ranges, 48 ℃ of default values);
Thh---the upper limit of hot water automatic setting temperature, ℃ (this value is adjustable, 20 ℃～55 ℃ of effective ranges, 55 ℃ of default values);
T
Encircle flat U---require to produce hot water temperature's the pairing environment mean temperature of lower limit, 25 ℃;
T
Encircle flat L---require to produce hot water temperature's the pairing environment mean temperature of the upper limit, 18 ℃.Set.
The intelligent automatic setting that requires to produce hot water temperature Th illustrates:
1) works as T
Ring is flatIn the time of＞25 ℃, weather is warmmer, requires to produce hot water temperature Th value and is minimum Thl (48 ℃ of default values);
2) work as T
Ring is flatIn the time of＜18 ℃, weather is colder, requires to produce hot water temperature Th value and is the highest Thh (55 ℃ of default values);
3) as 25 ℃ 〉=T
Ring is flatIn the time of 〉=18 ℃, weather is moderate, requires to produce hot water temperature Th value this moment for linear corresponding according to the environment mean temperature between Thl and the Thh.
4) the Th value can manually be provided with, manually the value of setting only the same day effective.
(3), the intelligent automatic setting of the made heat-obtaining coolant-temperature gage of compressor operating Tfh: according to the hot water temperature that environment temperature is provided with automatically, the operation of this temperature prioritised control compressor is to guarantee that compressor is in the operating mode scope.Automatically determine the hot water temperature that compressor operating is produced according to environment temperature, to heat coolant-temperature gage also high more for compressor operating when environment temperature was high more, to heat coolant-temperature gage also low more for compressor operating when environment temperature was low more, compressor is only moved in the operating mode scope, avoided the compressor damage or the lost of life that cause owing to super working range.Environment temperature mean value T by last hour
Flat during ringDetermine next hour compressor operating the highest hot water temperature that can produce.Its intelligent automatic setting method is: it passes through formula
Tfh in the formula---compressor operating control hot water temperature, ℃;
T1ph---the compressor operating protection hot water temperature upper limit, 55 ℃;
T2ph---compressor operating protection hot water temperature lower limit, 35 ℃;
Tmaxh---specific environment temperature conditions lower compression machine moves the highest hot water temperature that produces, ℃;
T
Flat U during ring---pairing hour environment mean temperature of compressor operating protection hot water temperature's upper limit, 5 ℃;
T
Flat L during ring---pairing hour environment mean temperature of compressor operating protection hot water temperature's lower limit ,-10 ℃, set.
The intelligent automatic setting explanation of the made heat-obtaining coolant-temperature gage of compressor operating Tfh:
1) works as T
Flat during ringIn the time of＞5 ℃, weather is warmer, and the hot water temperature Th that produces any automatic setting can not have harmful effect to compressor, gets Tfh=Th this moment;
2) work as T
Flat during ringIn the time of＜-10 ℃, weather is cold excessively, does not produce hot water at suitable compressor heat pump operation, and this moment, compressor stopped to produce the operation of heat pump of hot water;
3) as 5 ℃ 〉=T
Flat during ringIn the time of 〉=-10 ℃, compressor operating is the highest produces hot water temperature Tmaxh between 35 ℃～55 ℃ and linear corresponding according to hour environment mean temperature, and compressor operating was produced hot water temperature Tfh and got little person among Th and the Tmaxh this moment.
Compressor start and stop control explanation:
The open and close of compressor only are subjected to Teat pump boiler state (ON/OFF), T
HeatControl with Tfh.
1) unlatching of compressor
As the start request or at the state of heating, detect T
Heat＜Tfh-5 ℃, open compressor and heat.
2) compressor closes
Work as T
Heat〉=Tfh-2 ℃, close compressor.
3) other
As Tfh-5 ℃≤T
HeatIn the time of＜Tfh-2 ℃, compressor maintains the original state.
4), the Based Intelligent Control of the auxiliary heating of Teat pump boiler: detect hot water temperature T in real time by hot water temperature's sensor
Heat, compare with Th or Tfh with it, with the start and stop of control compressor or auxiliary heating.When environment temperature is hanged down, the highest hot water temperature Tfh that compressor operating can be produced can be lower than require to produce hot water temperature Th; This moment, compressor was out of service, starts assisted heating device simultaneously hot water is heated to design temperature Th when reaching hot water temperature's upper limit Tfh that compressor can produce when compressor operating.
The open and close of the auxiliary heating of Teat pump boiler are subjected to Teat pump boiler state (ON/OFF), hour environment temperature mean value T
Flat during ring, hot water temperature T
HeatControl with compressor state (ON/OFF).
The method for controlling opening and closing of the auxiliary heating of Teat pump boiler is:
(1) works as T
Flat during ring＜-10 ℃ and T
Heat＜Th-3 ℃, heat water and open, open the auxiliary electrical heating; Or
(2) as 5 ℃ 〉=T
Flat during ring〉=-10 ℃ and T
Heat＜Th-5 ℃ and compressor are out of service, heat water and open, and open the auxiliary electrical heating.
The shut control method of the auxiliary heating of Teat pump boiler is: close when (1) and heat or (2) T
Heat〉=Th or (3) T
Flat during ringWhen＞5 ℃ or (4) compressor start heating operation, the auxiliary heating of Teat pump boiler is closed.
Non-above-mentioned open and close situation, the auxiliary heating of Teat pump boiler maintains the original state.The auxiliary heating of Teat pump boiler should be provided with manually opened/manual-lock function.When manually opened, work as T
HeatAlso to close auxiliary heating during 〉=Th.
The above embodiment is a preferred embodiments of the present invention, is not to limit the scope of the present invention, so all equivalences of doing according to the described structure of the present patent application claim, feature and principle change or modify, all should comprise in the patent claim of the present invention.
Claims (7)
1. the intelligence control method of a heat pump water heater hot-water temperature, it is characterized in that: it realizes the Based Intelligent Control of heat pump water heater hot-water temperature by following control method:
Computing environment temperature hourly average value T
Flat during ringWith environment temperature mean value T
Ring is flat: by a real-time testing environment temperature T of environment temperature sensor
Ring, by T
RingCalculate the environment temperature hourly average value T of every day
Flat during ringWith environment temperature mean value T
Ring is flat
Require to produce the intelligent automatic setting of hot water temperature Th: can be divided into manual design temperature T1h of hot water and hot water automatic setting temperature T 2h, it is T1h or T2h that the hot water design temperature can be selected, T1h manually sets for the people, the setting range restriction is arranged, if setting exceeds setting range and then is set at default value, T2h is for adjusting the hot water temperature of setting automatically according to environment temperature;
The intelligent automatic setting of the made heat-obtaining coolant-temperature gage of compressor operating Tfh: according to the hot water temperature that environment temperature is provided with automatically, the operation of this temperature prioritised control compressor is to guarantee that compressor is in the operating mode scope;
The Based Intelligent Control of the auxiliary heating of Teat pump boiler: detect hot water temperature T in real time by hot water temperature's sensor
Heat, compare with Th or Tfh with it, with the start and stop of control compressor or auxiliary heating.
2. the intelligence control method of a kind of heat pump water heater hot-water temperature according to claim 1 is characterized in that: described environment temperature hourly average value T
Flat during ringComputational methods be: according to detected ambient temperature, at (t+1) of every day (t+1) hour: 00 arithmetic mean of instantaneous value calculates t hour environment temperature mean value T
Flat t during ring, computing formula is
N-ambient temperature sampling number of times per hour in the formula.
Environment temperature mean value T by t hour every day
Flat t during ringDetermine (t+1) hour compression down
The highest hot water temperature Tfh that the machine operation can be produced.
3. the intelligence control method of a kind of heat pump water heater hot-water temperature according to claim 1 is characterized in that: described environment temperature mean value T
Ring is flatComputational methods are: by the typical environment temperature-averaging value T of every day
Ring is flatDetermine second day hot water automatic setting temperature T 2h, according to environment temperature mean value T hourly
Flat t during ring, calculate the environment temperature mean value T of the previous day at the 00:00 of every day arithmetic mean of instantaneous value
Ring is flat, computing formula is
Environment temperature mean value T by the previous day
Ring is flatDetermine the health hot water temperature T h that will produce on the same day.
4. the intelligence control method of a kind of heat pump water heater hot-water temperature according to claim 1, it is characterized in that: the described intelligent automatic setting method that requires to produce hot water temperature Th is: it passes through formula
Th in the formula---hot water automatic setting temperature, ℃;
The lower limit of Thl---hot water automatic setting temperature (this value is adjustable, 20 ℃～55 ℃ of effective ranges, 48 ℃ of default values), ℃;
T
Ring is flat---environment temperature mean value;
The upper limit of Thh---hot water automatic setting temperature (this value is adjustable, 20 ℃～55 ℃ of effective ranges, 55 ℃ of default values), ℃;
T
Encircle flat U---require to produce hot water temperature's the pairing environment mean temperature of lower limit, 25 ℃;
T
Encircle flat L---require to produce hot water temperature's the pairing environment mean temperature of the upper limit, 18 ℃.
Set.
5. the intelligence control method of a kind of heat pump water heater hot-water temperature according to claim 1, it is characterized in that: the intelligent automatic setting method of the made heat-obtaining coolant-temperature gage of described compressor operating Tfh is: it passes through formula
Tfh in the formula---compressor operating control hot water temperature, ℃;
T1ph---the compressor operating protection hot water temperature upper limit, 55 ℃;
T2ph---compressor operating protection hot water temperature lower limit, 35 ℃;
Tmaxh---specific environment temperature conditions lower compression machine moves the highest hot water temperature that produces, ℃;
Th---hot water automatic setting temperature, ℃;
T
Ring is flat---environment temperature mean value, ℃;
T
Flat U during ring---pairing hour environment mean temperature of compressor operating protection hot water temperature's upper limit, 5 ℃;
T
Flat L during ring---pairing hour environment mean temperature of compressor operating protection hot water temperature's lower limit ,-10 ℃; Set.
6. the intelligence control method of a kind of heat pump water heater hot-water temperature according to claim 1 is characterized in that: the method for controlling opening and closing of the auxiliary heating of described Teat pump boiler is:
As pairing hour environment mean temperature of compressor operating protection hot water temperature's upper limit T
Flat during ring＜-10 ℃ and hot water temperature T
Heat＜Th-3 ℃, heat water and open, open the auxiliary electrical heating; Or as pairing hour environment mean temperature of 5 ℃ 〉=compressor operating protection hot water temperature's upper limit T
Flat during ring〉=-10 ℃ and hot water temperature T
Heat＜Th-5 ℃ and compressor are out of service, heat water and open, and open the auxiliary electrical heating.
7. the intelligence control method of a kind of heat pump water heater hot-water temperature according to claim 1 is characterized in that: the shut control method of the auxiliary heating of described Teat pump boiler is: heat or hot water temperature T when closing
Heat〉=Th or pairing hour environment mean temperature of compressor operating protection hot water temperature's upper limit T
Flat during ringWhen＞5 ℃ or compressor start heating operation, the auxiliary heating of Teat pump boiler is closed.
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| CNB2007100294081A CN100526766C (en) | 2007-07-27 | 2007-07-27 | Heat pump water heater hot-water temperature intelligent control method |
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| CN104075456B (en) * | 2014-07-10 | 2017-01-25 | 珠海格力电器股份有限公司 | Control method and device and water heater |
| CN105987502A (en) * | 2015-02-02 | 2016-10-05 | 青岛经济技术开发区海尔热水器有限公司 | Water heater control method and heat-pump type water heater |
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| CN111238037A (en) * | 2020-02-20 | 2020-06-05 | 青岛海信日立空调系统有限公司 | Hot water unit |
| CN115451557A (en) * | 2022-09-26 | 2022-12-09 | 宁波奥克斯电气股份有限公司 | Heat pump air conditioner and control method |
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