CN108571823A - Control method of electric water heater with dynamic heating function and electric water heater - Google Patents
Control method of electric water heater with dynamic heating function and electric water heater Download PDFInfo
- Publication number
- CN108571823A CN108571823A CN201710134538.5A CN201710134538A CN108571823A CN 108571823 A CN108571823 A CN 108571823A CN 201710134538 A CN201710134538 A CN 201710134538A CN 108571823 A CN108571823 A CN 108571823A
- Authority
- CN
- China
- Prior art keywords
- water
- bathing
- temperature
- flow
- water tank
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 326
- 238000010438 heat treatment Methods 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 41
- 238000003287 bathing Methods 0.000 claims abstract description 177
- 238000005485 electric heating Methods 0.000 claims abstract description 18
- 238000004364 calculation method Methods 0.000 claims description 9
- 238000000205 computational method Methods 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 7
- 230000001343 mnemonic effect Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 3
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 3
- 239000008399 tap water Substances 0.000 claims description 3
- 235000020679 tap water Nutrition 0.000 claims description 3
- 239000002699 waste material Substances 0.000 abstract description 4
- 238000013021 overheating Methods 0.000 abstract 1
- 230000003068 static effect Effects 0.000 description 7
- 230000006870 function Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- VNFVKWMKVDOSKT-LREBCSMRSA-N (2r,3r)-2,3-dihydroxybutanedioic acid;piperazine Chemical compound C1CNCCN1.OC(=O)[C@H](O)[C@@H](O)C(O)=O VNFVKWMKVDOSKT-LREBCSMRSA-N 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000009790 rate-determining step (RDS) Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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
- F24H9/2021—Storage heaters
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control For Baths (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention discloses a control method of an electric water heater with a dynamic heating function and the electric water heater, wherein the control method comprises the following steps: (1) collecting the user set temperatureTurning on the electric heating tube; (2) periodically detecting the actual temperature in the current water tank in the heating process of the electric heating pipeDetecting whether the dynamic heating pipe is opened or not, and if the dynamic heating pipe is opened, calculating the hot water supply rate of the dynamic heating pipe; (4) calculating and displaying the residual bath time t: (5) when the water in the water tank is heated to the set temperatureWhen the temperature is higher than the preset temperature, the electric heating pipe is stopped to heat; (6) and periodically continuing to calculate the residual bathing time t and updating and displaying. The control method of the electric water heater with the dynamic heating function can display the residual bathing time to a user, so that the user can visually know the hot water amount in the water tank, and the problems of electric energy waste or reduction of bathing comfort caused by overheating or under-heating can be solved.
Description
Technical field
The present invention relates to electric heater technical fields, specifically, being to be related to one kind having the function of dynamic heat electric hot water
The control method and electric heater of device.
Background technology
Most water heater currently on the market, user setting heating temperature, it is not known that corresponding bathing duration, it should set
It sets how many degree and just enough meets bathing duration user at all without concept.Maximum temperature is arrived in most of setting, and portion is only used in bathing
Water, remaining hot water is divided to slattern substantially.And the time for being heated to maximum temperature is long, and user needs to wait for ratio
Relatively long.
Water heater currently on the market can only see the temperature of water tank inner storing water, it is shown go out temperature cannot represent water tank
Interior true temperature is often having a bath beginning soon, and due to entering cold water, displays temperature just drastically declines, and is possible to
Hot water amount in water tank or many at this time, do not know during user's bathing surplus hot water can with bathing how long
Bath, it is possible to be in the presence of just having used up without after a bath hot water.
Invention content
The present invention is in order to solve the bathing duration that existing water heater cannot show that current hot water amount disclosure satisfy that so that user
There can not be the technical issues of intuitive understanding to hot water amount in water tank, it is proposed that a kind of control with dynamic heat electric heater
Method processed can solve the above problems.
In order to solve the above-mentioned technical problem, the present invention is achieved by the following scheme：
A kind of control method with dynamic heat electric heater, includes the following steps：
(1), user set temperature R is acquired, electric heating tube is at least opened；
(2), during electric heater for heating, it is periodically detected actual temperature R in current water tankt, calculating will be in water tank
Volume is V0, temperature RtHot water and temperature be RJCold water mix to bathing temperature R0When the equivalent bathing that can mix out
Water V, works as Rt＜ R0When, V=0；
(3), whether detection dynamic heat pipe is opened, if dynamic heat pipe is opened, calculates the hot water supply of dynamic heat pipe
Rate H0, namely：Dynamic heat pipe can be by the cold water of entrance from temperature R in unit intervalJIt is heated to bathing temperature R0Water,
If dynamic heat pipe is not opened, hot water recharge rate H0It is 0；
(4), it calculates residue bathing time t and shows：
Wherein, F0For average bathing flow, V0Namely the capacity of water heater；
(5), when the water in water tank is heated to set temperature R, stop electric heater for heating；
(6), periodically continue to calculate remaining bathing time t, and update display：
Wherein, vnTo add up discharge time tn1When the bathing water that uses,It is obtained for acquisition or Equivalent Calculation
Bathing flow, tn2To stop the accumulative time for opening dynamic heat pipe after electric heater for heating；VmaxTo be by water tank inner volume
V0, temperature be R hot water and temperature be RJCold water mix to bathing temperature R0When the equivalent bathing water that can mix out.
Further, equivalent bath water amount V computational methods are in step (2)：
Wherein, μ is hot water delivery rate coefficient in water tank, 0 μ≤1 ＜.
Further, hot water recharge rate H in step (3)0Computational methods be：
H0=λ H
λ is that dynamic heat feeds range of value, and 0 ＜ λ≤1, P is the power of dynamic heat pipe, and c is the specific heat of water.
Further, in step (6), bathing flowAcquisition methods be：
By detecting cold water flow FREquivalent bathing flow is calculated as bathing flowWherein, equivalent bathing flow is
Come from the hot water in water tank and come from flow of the cold water of tap water after water mixing valve, is equal to hot water flow and cold water flow
FRThe sum of, hot water flow is by hot water temperature RC, bathing temperature R0And cold water temperature RJIt determines：
Wherein, hot water temperature RCBy be arranged in hot-water line or water tank in temperature sensor measure.
Further, in step (6), bathing flowAcquisition methods be：
When discharging water, m practical bathing flow f1, f2, f3 ... fm is acquired in a calculating cycle,
Bathing flow in this calculating cycleWherein, m is positive integer.
Further, the average bathing flow F in step (4)0To set constant, if passing through mnemonic learning user's
The average value that bathing flow rate calculation when dry bathing obtains.
Further, the temperature R of cold waterJAcquisition modes are the temperature sensor acquisition by being arranged in cold water pipe, or
The cold water temperature acquired in person's mnemonic learning each month, the average cold water temperature for calculating each month are preserved, are being used
When, according to current affiliated month, the cold water temperature angle value that is averaged accordingly is searched as RJ。
Further, when detecting that dynamic heat pipe do not open, and further include that alarm carries when residue bathing time t ＜ t1
The step of showing, t1 ＞ 0.
Further, bathing temperature R0Value range at 38 DEG C~42 DEG C, if electric heater is provided with thermostatic valve, bathing
Temperature R0It is obtained by acquiring.
A kind of electric heater based on any one of front control method, including：
Water tank, respectively with for into cold water water inlet pipe and go out the outlet pipe of hot water and connect；
Electric heater unit, including electric heating tube and dynamic heat pipe, the electric heating tube are used to carry out the water in water tank
Whole heating；The dynamic heat pipe is used to carry out local heating to the water in water tank；
At least one water tank temperature sensor is arranged in the water tank, the current temperature for detecting water in the water tank
Degree；
Control device is connect respectively with the electric heater unit, water tank temperature sensor, for receiving the water tank temperature
The temperature data of sensor acquisition, calculates remaining bathing time, and the control electric heater unit at acquisition user set temperature
Be turned on or off；
Display device is connect with the control device, when for showing remaining bathing that the control device is calculated
Between.
Compared with prior art, the advantages and positive effects of the present invention are：The present invention's has the function of dynamic heat electric heating
The control method of hydrophone can show the remaining bathing time to user, allow user to have intuitive understanding to hot water amount in water tank, keep away
User is exempted from and has been associated with the problem of no concept causes blindly to heat between hot water temperature in water tank and bathing duration, and can keep away
There is no the situation of hot water during disposable bath, and then can either owe to heat to lead to waste of energy or drop to avoid heating is crossed
The problem of low bath comfort.
In addition, prompting by the way that dynamic heat pipeline time is arranged, in the case where bath water amount is less, can assist adding
Heat extends the remaining bathing time, avoids the embarrassment that hot water not enough uses in time.
After the detailed description of embodiment of the present invention is read in conjunction with the figure, the other features and advantages of the invention will become more
Add clear.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is a kind of embodiment flow of the control method with dynamic heat electric heater proposed by the invention
Figure；
Fig. 2 is a kind of example structure schematic diagram of electric heater proposed by the invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment one
In order to solve the technical issues of current water heater cannot precisely show the remaining bathing time, the present embodiment proposes one
Kind has the function of the control method of dynamic heat electric heater, how the present embodiment mainly holds according to set temperature electric heater
The corresponding computer heating control of row and remaining bathing duration calculation are described in detail, it should be noted that the electricity in the present embodiment
Water heater is defaulted as that the electric heater of static heating and dynamic heat can be carried out at the same time, namely has electric heating tube simultaneously and move
The tank of state heating tube, electric heater is that water tank, heating element such as electric heating tube and dynamic heat pipe are arranged in water tank,
The water tank of electric heater is that the water in closed namely water tank is full always, and can enter cold water simultaneously when releasing hot water supplements,
And the water released is equal with the water of entrance, therefore, the volume of the water in water tank is equal with the capacity of water tank, when in use,
It needs to carry out to work as based on electric heating tube when a large amount of cool water heatings, when being carried out at the same time dynamic heat and static heating, heats ring
Border is complex, and the calculating of remaining bathing duration is also corresponding more complex, and this method can solve the above problem without exception, this implementation
The control method with dynamic heat electric heater of example, includes the following steps：
S1, acquisition user set temperature R, at least open electric heating tube；User is inputted by control panel or remote controler
Set temperature R, corresponding control unit can collect set temperature R.
Current electric heater is usually the mode for needing user directly to set heating temperature can hold if user does not set
One default setting temperature of row is heated as user's set temperature, and using the set temperature as target temperature, in order to rear
Equivalent bathing water is calculated in continuous step, needs to acquire user's set temperature.
S2, during electric heater for heating, be periodically detected actual temperature R in current water tankt, calculate water tank inner body
Product is V0, temperature RtHot water and temperature be RJCold water mix to bathing temperature R0When the equivalent bath water that can mix out
V is measured, R is worked ast＜ R0When, V=0；This process belongs to static heating process, the bathing that is, user does not discharge water also, equivalent bathing water V
For according to by actual temperature R in current water tanktIt mixes to bathing temperature R0When the theoretical maximum bathing water that can mix out, with
The raising of water temperature in water tank, which accordingly increases.
Whether S3, detection dynamic heat pipe are opened, if dynamic heat pipe is opened, calculate the hot water recharge rate of dynamic heat pipe
H0, namely：Dynamic heat pipe can be by the cold water of entrance from temperature R in unit intervalJIt is heated to bathing temperature R0Water, if
Dynamic heat pipe is not opened, hot water recharge rate H0It is 0；
By the hot water recharge rate H for calculating dynamic heat pipe0, calculate for convenience when dynamic heat is opened, heating
Contribution of the hot water amount to the remaining bathing time (may actually add since either dynamic heat pipe heats water to how many degree
The temperature of heat can be higher than bathing temperature), for a user, the water for releasing bathing temperature is only needed during bathing,
Therefore, dynamic heat pipe heats water to how high temperature when this step is not concerned with practical heating, it is only necessary to know dynamic heat
Dynamic heat pipe can be by the cold water of entrance from temperature R in the unit interval when unlatchingJIt is heated to bathing temperature R0Water,
As long as the power of dynamic heat pipe is constant, the water for heating specific temperature is accordingly constant.
S4, it calculates residue bathing time t and shows：
Wherein, F0For average bathing flow, V0Namely the capacity of water heater；
S5, when the water in water tank is heated to set temperature R, stop electric heater for heating；
S6, periodically continue to calculate remaining bathing time t, and update display：
Wherein, vnTo add up discharge time tn1When the bathing water that uses,It is obtained for acquisition or Equivalent Calculation
Bathing flow, tn2To stop the accumulative time for opening dynamic heat pipe after electric heater for heating；VmaxTo be by water tank inner volume
V0, temperature be R hot water and temperature be RJCold water mix to bathing temperature R0When the equivalent bathing water that can mix out,
That is maximum equivalent bathing water carries out timing when user discharges water bathing to discharge time, and the product with bathing flow is
Equivalent bathing water through consuming, if dynamic heat is opened at this time, to be that water tank feeds H in the unit interval0Equivalent wash
Bath water amount, therefore, as a dynamic process, remaining equivalent bathing water is equal to total equivalent bathing water V and subtracts in water tank
The equivalent bathing water consumed is gone, while plus the equivalent bathing water of dynamic heat supply, it, should when not discharging water at certain moment
The equivalent bathing water that moment is consumed is zero, when dynamic heat is not opened, hot water recharge rate H0It is zero, this method uses
The hot water amount that the hot water amount either generated still consumes is converted to bathing water, can directly carry out plus-minus calculating, nothing
By whether carrying out discharging water bathing and currently whether open dynamic heat, the remaining bathing time can be accurately calculated.
The control method for having the function of dynamic heat electric heater of the present embodiment, when can show remaining bathing to user
Between, it allows user that there is intuitive understanding to hot water amount in water tank, avoids user between hot water temperature in water tank and bathing duration
The no concept of association lead to blindly the problem of heating, and can avoid there is no the situation of hot water, Yong Hutong during bathing
It spends the observation remaining bathing time and opens dynamic heat in time, hot water is fed, extend the remaining bathing time, and then can keep away
Exempt from heating and either owes the problem of heating leads to waste of energy or reduces bath comfort.
Remaining bathing time computational methods in the present embodiment are in such a way that bathing water is equivalent, by doing heating tube
Work(be converted to equivalent bathing water, in conjunction with bathing flow, either current single static heating or static dynamic heat simultaneously,
No matter how complicated heating factors are, is converted to unified expression way multifactor, can accurately calculate user's residue bathing
Time, and it can be adapted adjustment with user's bathing flow during user's bathing, improve remaining time display accuracy.
Equivalent bath water amount V computational methods are in step S2：
Wherein, μ is hot water delivery rate coefficient in water tank, 0 μ≤1 ＜.Different types
Can hot water delivery rate it is different, such as 40L machine, it is possible to release the hot water of 39L.
Hot water recharge rate H in step S30Computational methods be：
H0=λ H
λ is that dynamic heat feeds range of value, and 0 ＜ λ≤1, P is the power of dynamic heat pipe, and c is the specific heat of water.Heat
Water recharge rate H0Derivation method it is as follows：
According to law of conservation of energy, Q=cm Δ T=Pt indicate the water that can make m mass under P power under the heating t times
It increases.
Above-mentioned formula is converted, can be obtained：
P units kw, t unit min, c=4.2 × 10J/ (kg DEG C), the units/kg of m, m=ρ v, the here quality etc. of 1L water
In 1kg, approximate 1m=1L.Therefore, H0Indicate that dynamic supply in 1 minute can make H0Water is risen from inflow temperature RJIt is increased to and washes
Bath temperature R0。
In step S6, bathing flowAcquisition methods tool there are two types of, one of which use indirect mode Equivalent Calculation：
By detecting cold water flow FREquivalent bathing flow is calculated as bathing flowWherein, equivalent bathing flow is
Come from the hot water in water tank and come from flow of the cold water of tap water after water mixing valve, is equal to hot water flow and cold water flow
FRThe sum of, hot water flow is by hot water temperature RC, bathing temperature R0And cold water temperature RJIt determines：
Wherein, hot water temperature RCBy be arranged in hot-water line or water tank in temperature sensor measure.Due in reality
During the use of border, user is separately to buy water heater with shower with bathing, therefore, is not particularly suitable for directly measuring bathing
Flow preferably mixes water flow namely bathing flow by the cold water flow indirect gain measured in cold water pipe.Calculation basis is still
It is bathing temperature and hot water temperature, cold water temperature, cold water flow it has been determined that when needing flow to be FRTemperature is RJIt is cold
It is R that water, which is mixed into temperature,0Bathing temperature when, according to heat conservation law, required hot water flow also accordingly determines.
Bathing flowAnother acquisition methods be directly measured by using flow sensor：
When discharging water, m practical bathing flow f1, f2, f3 ... fm is acquired in a calculating cycle,
Bathing flow in this calculating cycleWherein, m is positive integer.
The bathing flow that this kind of mode obtainsPrecision is high, suitable for facilitating the electric hot water of installation bathing flow sensor
Device.
Step S4 belongs to static heating process, namely not yet starts the bathing that discharges water, and therefore, practical bathing flow is zero, needs
To be bathing flow assignment, the theory remaining bathing time that disclosure satisfy that with current water the temperature inside the box be calculated, in order to enable washing
Bath flow is more nearly practical bathing flow, and then improves the accuracy of the remaining bathing time t calculated, flat in step S4
Equal bathing flow F0It is empirical value to set constant, or bathing flow when by the bathing several times of mnemonic learning user
The average value being calculated.
The temperature R of cold waterJAcquisition modes are by the temperature sensor acquisition being arranged in cold water pipe or mnemonic learning
The cold water temperature acquired in each month, the average cold water temperature for calculating each month is preserved, when in use, according to current
Affiliated month, the cold water temperature angle value that is averaged accordingly was searched as RJ。
When detecting that dynamic heat pipe do not open, and further include the steps that alarm when residue bathing time t ＜ t1,
T1 ＞ 0, because this kind of situation is susceptible to user and there is not also bathing to finish the situation that will be supplied without hot water, by being carried
Show, user can choose whether to carry out dynamic heat according to actual conditions, if to extend remaining bathing time or user just
User terminates bathing at once, can select to be not turned on dynamic heat.This method especially significant the advantage is that will not blindly by
Temperature in water heater is heated to higher temperature, and user leads to a large amount of waste of energy using endless, and is not in that hot water amount subtracts
The situation of hot water cut-off is caused to occur less, it is only necessary to which the bathing time demand for meeting user heats.In addition, by setting
Prompt is set, in the case where bath water amount is less, can assist heating, extends the remaining bathing time in time, avoids hot water
The embarrassment not enough used.
Bathing temperature R0Value range at 38 DEG C~42 DEG C, if electric heater is provided with thermostatic valve, bathing temperature R0Pass through
Acquisition obtains, and precision is high by way of acquiring and obtaining, and can accordingly increase some hardware costs.
Embodiment two
The present embodiment proposes a kind of electric heater, based on control method recorded in embodiment one, as shown in Fig. 2,
Including：
Water tank 11, respectively with for into cold water water inlet pipe 12 and go out the outlet pipe 13 of hot water and connect；
Electric heater unit, including electric heating tube 141 and dynamic heat pipe 142, electric heating tube 141 are used for in water tank 11
Water carries out whole heating；Dynamic heat pipe 142 is used to carry out local heating to the water in water tank 11；
At least one water tank temperature sensor 15 is arranged in water tank 11, the Current Temperatures for detecting water in water tank 11；
Control device 16 is connect with electric heater unit, water tank temperature sensor 15 respectively, for receiving water tank temperature sensing
The temperature data of the acquisition of device 15, calculates remaining bathing time, and the unlatching of control electric heater unit at acquisition user set temperature
Or it closes；
Display device 17 is connect with control device 16, the remaining bathing time being calculated for display control unit 16.
When electric-opening works on electric heater, control method includes the following steps：
S1, control device 16 acquire user set temperature R, and at least unlatching electric heating tube 141 (can be individually to open electricity to add
Heat pipe or electric heating tube and dynamic heat pipe are opened simultaneously)；User inputs set temperature by control panel or remote controler
R, corresponding control unit can collect set temperature R.
Current electric heater is usually the mode for needing user directly to set heating temperature can hold if user does not set
One default setting temperature of row is heated as user's set temperature, and using the set temperature as target temperature, in order to rear
Equivalent bathing water is calculated in continuous step, needs to acquire user's set temperature.
S2, during heating, water tank temperature sensor 15 is periodically detected actual temperature R in current water tankt, and send
To control device, it is V that control device 16, which is calculated water tank inner volume,0, temperature RtHot water and temperature be RJCold water mix extremely
Bathing temperature R0When the equivalent bathing water V that can mix out, work as Rt＜ R0When, V=0；This process belongs to static heating process,
The bathing that is, user does not discharge water also, equivalent bathing water V are according to by actual temperature R in current water tanktIt mixes to bathing temperature
R0When the theoretical maximum bathing water that can mix out, with the raising of water temperature in water tank, which accordingly increases
Add.
S3, control device 16 detect whether dynamic heat pipe 142 is opened, if dynamic heat pipe is opened, calculate dynamic heat
The hot water recharge rate H of pipe0, namely：Dynamic heat pipe can be by the cold water of entrance from temperature R in unit intervalJIt is heated to bathing temperature
Spend R0Water, if dynamic heat pipe is not opened, hot water recharge rate H0It is 0；
By the hot water recharge rate H for calculating dynamic heat pipe0, calculate for convenience when dynamic heat is opened, heating
Contribution of the hot water amount to the remaining bathing time (may actually add since either dynamic heat pipe heats water to how many degree
The temperature of heat can be higher than bathing temperature), for a user, the water for releasing bathing temperature is only needed during bathing,
Therefore, dynamic heat pipe heats water to how high temperature when this step is not concerned with practical heating, it is only necessary to know dynamic heat
Dynamic heat pipe can be by the cold water of entrance from temperature R in the unit interval when unlatchingJIt is heated to bathing temperature R0Water,
As long as the power of dynamic heat pipe is constant, the water for heating specific temperature is accordingly constant.
S4, control device 6 calculate remaining bathing time t and are shown by display device 17：
Wherein, F0For average bathing flow, V0Namely the capacity of water heater；
S5, when the water in water tank is heated to set temperature R, control device control stop electric heater for heating；
S6, control device periodically continue to calculate remaining bathing time t, and update display：
Wherein, vnTo add up discharge time tn1When the bathing water that uses,It is obtained for acquisition or Equivalent Calculation
Bathing flow, tn2To stop the accumulative time for opening dynamic heat pipe after electric heater for heating；VmaxTo be by water tank inner volume
V0, temperature be R hot water and temperature be RJCold water mix to bathing temperature R0When the equivalent bathing water that can mix out,
That is maximum equivalent bathing water carries out timing when user discharges water bathing to discharge time, and the product with bathing flow is
Equivalent bathing water through consuming, if dynamic heat is opened at this time, to be that water tank feeds H in the unit interval0Equivalent wash
Bath water amount, therefore, as a dynamic process, remaining equivalent bathing water is equal to total equivalent bathing water V and subtracts in water tank
The equivalent bathing water consumed is gone, while plus the equivalent bathing water of dynamic heat supply, it, should when not discharging water at certain moment
The equivalent bathing water that moment is consumed is zero, when dynamic heat is not opened, hot water recharge rate H0It is zero, this method uses
The hot water amount that the hot water amount either generated still consumes is converted to bathing water, can directly carry out plus-minus calculating, nothing
By whether carrying out discharging water bathing and currently whether open dynamic heat, the remaining bathing time can be accurately calculated.
Algorithmic formula based on when other rate-determining steps and control device of this electric heater calculate can join implementation
Recorded in example one, this will not be repeated here.The water heater of the present embodiment can show the remaining bathing time to user, enable to
User has intuitive understanding to hot water amount in water tank, freely controls the bathing time, better usage experience is brought to user.
Certainly, above description is not limitation of the present invention, and the present invention is also not limited to the example above, this technology neck
The variations, modifications, additions or substitutions that the those of ordinary skill in domain is made in the essential scope of the present invention, should also belong to this hair
Bright protection domain.
Claims (10)
1. a kind of control method with dynamic heat electric heater, which is characterized in that include the following steps：
(1), user set temperature R is acquired, electric heating tube is at least opened；
(2), during electric heater for heating, it is periodically detected actual temperature R in current water tankt, calculate and by water tank inner volume be
V0, temperature RtHot water and temperature be RJCold water mix to bathing temperature R0When the equivalent bathing water V that can mix out,
Work as Rt＜ R0When, V=0；
(3), whether detection dynamic heat pipe is opened, if dynamic heat pipe is opened, calculates the hot water recharge rate H of dynamic heat pipe0,
Namely：Dynamic heat pipe can be by the cold water of entrance from temperature R in unit intervalJIt is heated to bathing temperature R0Water, if dynamic
Heating tube is not opened, hot water recharge rate H0It is 0；
(4), it calculates residue bathing time t and shows：
Wherein, F0For average bathing flow, V0Namely the capacity of water heater；
(5), when the water in water tank is heated to set temperature R, stop electric heater for heating；
(6), periodically continue to calculate remaining bathing time t, and update display：
Wherein, vnTo add up discharge time tn1When the bathing water that uses,It is washed for what acquisition or Equivalent Calculation obtained
Bathe flow, tn2To stop the accumulative time for opening dynamic heat pipe after electric heater for heating；VmaxTo be V by water tank inner volume0、
The hot water that temperature is R and temperature are RJCold water mix to bathing temperature R0When the equivalent bathing water that can mix out.
2. control method according to claim 1, which is characterized in that equivalent bath water amount V computational methods in step (2)
For：
Wherein, μ is hot water delivery rate coefficient in water tank, 0 μ≤1 ＜.
3. control method according to claim 2, which is characterized in that hot water recharge rate H in step (3)0Computational methods
For：
H0=λ H
λ is that dynamic heat feeds range of value, and 0 ＜ λ≤1, P is the power of dynamic heat pipe, and c is the specific heat of water.
4. control method according to claim 1, which is characterized in that in step (6), bathing flowAcquisition methods be：
By detecting cold water flow FREquivalent bathing flow is calculated as bathing flowWherein, equivalent bathing flow be from
In in water tank hot water and come from flow of the cold water of tap water after water mixing valve, be equal to hot water flow and cold water flow FRIt
With hot water flow is by hot water temperature RC, bathing temperature R0And cold water temperature RJIt determines：
Wherein, hot water temperature RCBy be arranged in hot-water line or water tank in temperature sensor measure.
5. control method according to claim 1, which is characterized in that in step (6), bathing flowAcquisition methods
For：
When discharging water, m practical bathing flow f1, f2, f3 ... fm is acquired in a calculating cycle,
Bathing flow in this calculating cycleWherein, m is positive integer.
6. control method according to claim 1, which is characterized in that the average bathing flow F in step (4)0It is normal to set
Amount, or average value that bathing flow rate calculation when by the bathing several times of mnemonic learning user obtains.
7. according to claim 1-6 any one of them control methods, which is characterized in that the temperature R of cold waterJAcquisition modes are logical
The cold water temperature that the temperature sensor being arranged in cold water pipe is obtained or acquired in mnemonic learning each month is crossed, is calculated
The average cold water temperature in each month is preserved, and when in use, according to current affiliated month, searches accordingly averagely cold water temperature
Value is used as RJ。
8. according to claim 1-6 any one of them control methods, which is characterized in that when detecting dynamic heat Guan Weikai
It opens, and further includes the steps that alarm, t1 ＞ 0 when residue bathing time t ＜ t1.
9. according to claim 1-6 any one of them control methods, which is characterized in that bathing temperature R0Value range 38
DEG C~42 DEG C, if electric heater is provided with thermostatic valve, bathing temperature R0It is obtained by acquiring.
10. a kind of electric heater based on any one of the claim 1-9 control methods, which is characterized in that including：
Water tank, respectively with for into cold water water inlet pipe and go out the outlet pipe of hot water and connect；
Electric heater unit, including electric heating tube and dynamic heat pipe, the electric heating tube are used to carry out the water in water tank whole
Heating；The dynamic heat pipe is used to carry out local heating to the water in water tank；
At least one water tank temperature sensor is arranged in the water tank, the Current Temperatures for detecting water in the water tank；
Control device is connect with the electric heater unit, water tank temperature sensor respectively, for receiving the water tank temperature sensing
The temperature data of device acquisition acquisition user set temperature, calculates the remaining bathing time, and controls opening for the electric heater unit
It opens or closes；
Display device is connect with the control device, the remaining bathing time being calculated for showing the control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710134538.5A CN108571823A (en) | 2017-03-08 | 2017-03-08 | Control method of electric water heater with dynamic heating function and electric water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710134538.5A CN108571823A (en) | 2017-03-08 | 2017-03-08 | Control method of electric water heater with dynamic heating function and electric water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108571823A true CN108571823A (en) | 2018-09-25 |
Family
ID=63576950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710134538.5A Pending CN108571823A (en) | 2017-03-08 | 2017-03-08 | Control method of electric water heater with dynamic heating function and electric water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108571823A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109324643A (en) * | 2018-10-24 | 2019-02-12 | 徐兆熙 | A kind of intelligence water flow control device and its control method |
| CN110222409A (en) * | 2019-05-30 | 2019-09-10 | 广东万和热能科技有限公司 | Electric heater residue water time detection method, device, equipment and storage medium |
| CN110388754A (en) * | 2019-07-11 | 2019-10-29 | 青岛海尔空调器有限总公司 | Parameter value setting method for water heater |
| CN112361608A (en) * | 2020-10-27 | 2021-02-12 | 安徽佳暖节能科技有限公司 | Control method of intelligent ultrahigh-frequency electric water heater |
| CN114963561A (en) * | 2021-10-29 | 2022-08-30 | 青岛经济技术开发区海尔热水器有限公司 | Control method, device, storage medium and program product for water heater |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62225850A (en) * | 1986-03-28 | 1987-10-03 | Chubu Electric Power Co Inc | Controller of water heater |
| CN103185398A (en) * | 2011-12-28 | 2013-07-03 | 樱花卫厨（中国）股份有限公司 | Device for automatically detecting available time of hot water for water-storing electric water heater |
| CN203533893U (en) * | 2013-07-17 | 2014-04-09 | 海尔集团公司 | Water heater with alarm function |
| CN105202765A (en) * | 2015-08-29 | 2015-12-30 | 广东万和新电气股份有限公司 | Device and method for predicting residual hot water quantity of water heater |
| CN105698394A (en) * | 2014-11-27 | 2016-06-22 | 珠海格力电器股份有限公司 | Information processing method and device and water heater |
| CN106352542A (en) * | 2016-11-04 | 2017-01-25 | 中国石油大学(华东) | Prediction method of remaining bath time of water storage type electric water heater |
-
2017
- 2017-03-08 CN CN201710134538.5A patent/CN108571823A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62225850A (en) * | 1986-03-28 | 1987-10-03 | Chubu Electric Power Co Inc | Controller of water heater |
| CN103185398A (en) * | 2011-12-28 | 2013-07-03 | 樱花卫厨（中国）股份有限公司 | Device for automatically detecting available time of hot water for water-storing electric water heater |
| CN203533893U (en) * | 2013-07-17 | 2014-04-09 | 海尔集团公司 | Water heater with alarm function |
| CN105698394A (en) * | 2014-11-27 | 2016-06-22 | 珠海格力电器股份有限公司 | Information processing method and device and water heater |
| CN105202765A (en) * | 2015-08-29 | 2015-12-30 | 广东万和新电气股份有限公司 | Device and method for predicting residual hot water quantity of water heater |
| CN106352542A (en) * | 2016-11-04 | 2017-01-25 | 中国石油大学(华东) | Prediction method of remaining bath time of water storage type electric water heater |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109324643A (en) * | 2018-10-24 | 2019-02-12 | 徐兆熙 | A kind of intelligence water flow control device and its control method |
| CN110222409A (en) * | 2019-05-30 | 2019-09-10 | 广东万和热能科技有限公司 | Electric heater residue water time detection method, device, equipment and storage medium |
| CN110222409B (en) * | 2019-05-30 | 2023-04-07 | 广东万和热能科技有限公司 | Method, device, equipment and storage medium for detecting residual water using time of electric water heater |
| CN110388754A (en) * | 2019-07-11 | 2019-10-29 | 青岛海尔空调器有限总公司 | Parameter value setting method for water heater |
| CN112361608A (en) * | 2020-10-27 | 2021-02-12 | 安徽佳暖节能科技有限公司 | Control method of intelligent ultrahigh-frequency electric water heater |
| CN114963561A (en) * | 2021-10-29 | 2022-08-30 | 青岛经济技术开发区海尔热水器有限公司 | Control method, device, storage medium and program product for water heater |
| CN114963561B (en) * | 2021-10-29 | 2023-12-12 | 青岛经济技术开发区海尔热水器有限公司 | Control method and device for water heater, storage medium and program product |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108571823A (en) | Control method of electric water heater with dynamic heating function and electric water heater | |
| CN106020293B (en) | A kind of detecting and controlling system of shower water temperature and flow | |
| CN109297180A (en) | Intelligent preheating circulation gas water heater, preheating circulation system and control method | |
| CN108571826A (en) | Electric water heater control method and electric water heater | |
| CN106969495A (en) | Intelligent constant-temperature water-saving water heater and control method | |
| CN104197502A (en) | Heat source machine formed by connecting gas water heaters in parallel and control method | |
| CN104534670A (en) | Bathroom water saving method | |
| CN106546003B (en) | Water heater control method and water heater | |
| CN103321022A (en) | Device and method for regulating water temperature of washing machine | |
| CN108571822A (en) | Residual bath time calculation method with dynamic heating electric water heater and water heater | |
| JP2014126300A (en) | Hot water storage type hot water supply device | |
| CN114061152A (en) | Water heater, preheating control method and device of water heater and computer readable storage medium | |
| CN104928881B (en) | Washing machine and control method thereof | |
| CN202660753U (en) | Water point constant temperature device and multi-point water supply constant temperature hot water body with same | |
| CN106766227A (en) | A kind of water heater intelligent constant-temperature circulating device | |
| CN104281180A (en) | Intelligent water temperature and water amount control device | |
| CN106907862A (en) | Detect the method and system of inner container of electric water heater hot water amount | |
| TWI674373B (en) | Heat storage type electric water heater with energy-saving and hot water supply method thereof | |
| CN206330290U (en) | Heat pump water-heating machine water circuit system | |
| CN108759105A (en) | A kind of control method of electric water heater and water heater | |
| CN208124421U (en) | To the system of multiple terminal provisioning warm waters | |
| JP2004036982A (en) | Hot-water supply device and preheating amount calculating method | |
| CN113758009A (en) | Electronic thermostatic valve, control method thereof and water heater | |
| CN206556265U (en) | A kind of water heater intelligent constant-temperature circulating device | |
| JPS62129645A (en) | Water level control device for electric hot water supplier of hot water storage type |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180925 |