CN108571822A - Residual bath time calculation method with dynamic heating electric water heater and water heater - Google Patents
Residual bath time calculation method with dynamic heating electric water heater and water heater Download PDFInfo
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- CN108571822A CN108571822A CN201710134532.8A CN201710134532A CN108571822A CN 108571822 A CN108571822 A CN 108571822A CN 201710134532 A CN201710134532 A CN 201710134532A CN 108571822 A CN108571822 A CN 108571822A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 359
- 238000010438 heat treatment Methods 0.000 title claims abstract description 68
- 238000004364 calculation method Methods 0.000 title claims description 19
- 238000003287 bathing Methods 0.000 claims abstract description 206
- 238000000034 method Methods 0.000 claims abstract description 16
- 238000000205 computational method Methods 0.000 claims description 27
- 238000007599 discharging Methods 0.000 claims description 14
- 238000005485 electric heating Methods 0.000 claims description 13
- 230000001343 mnemonic effect Effects 0.000 claims description 9
- 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
- 230000003068 static effect Effects 0.000 abstract description 14
- 230000006870 function Effects 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000003247 decreasing effect Effects 0.000 description 2
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- 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
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- 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
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- Control For Baths (AREA)
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Abstract
The invention discloses a method for calculating the remaining bathing time of a dynamically heated electric water heater and the water heater, wherein the method comprises the following steps: collecting user set temperature(ii) a Calculating the volume in the tank asAt a temperature ofHot water and temperature ofThe cold water is mixed to the bathing temperatureThe equivalent bath water amount which can be mixed in the process;(ii) a Calculating the hot water supply rate of the dynamic heating pipeNamely: the dynamic heating pipe can heat the entering cold water in unit timeHeating to bath temperatureThe amount of water of (a); and calculating the residual bathing time t. The method for calculating the residual bathing time of the electric water heater with dynamic heating is particularly suitable for calculating the electric water heater with both dynamic and static heating functions, can definitely calculate the residual bathing time of a user no matter the current electric water heater is heated by single static heating and static and dynamic heating at the same time, and can be used for the userThe bathing flow is adaptively adjusted along with the user in the bathing process, and the display accuracy of the remaining time is improved.
Description
Technical field
The present invention relates to electric heater technical fields, specifically, being related to a kind of with dynamic heating electric water heater
Remaining bathing time computational methods and water heater.
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 in the market can only see the temperature of water tank inner storing water, it is shown go out temperature cannot represent in water tank
True temperature is often having a bath beginning soon, and due to entering cold water, displays temperature just drastically declines, and is possible at this time
Hot water amount in water tank or very much, does not know that surplus hot water can have with bathing bath how long during user's bathing
It is likely to occur the situation just used up without after a bath hot water.
Application No. is 201110033949.8 Chinese patent applications, are calculated only for the water heater of static state heating
Bathing remaining time, when being carried out at the same time dynamic heat and static heating, heating environment is complex, the meter of remaining bathing duration
Calculate also corresponding more complex, the technical issues of can not solving remaining bathing duration calculation with existing computational methods.
Invention content
The present invention is in order to solve existing to have the function of that dynamic heat electric heater can not carry out remaining bathing duration calculation
Technical problem, it is proposed that a kind of remaining bathing time computational methods with dynamic heating electric water heater can solve above-mentioned ask
Topic.
In order to solve the above-mentioned technical problem, the present invention is achieved by the following scheme：
A kind of remaining bathing time computational methods with dynamic heating electric water heater, include the following steps：
User's set temperature acquisition step, acquisition user's set temperature R；
Equivalent bathing water quantity calculation step, it is V to calculate water tank inner volume0, temperature be R hot water and temperature be RJIt is cold
Water is mixed to bathing temperature R0When the equivalent bathing water V that can mix out；
Calculate the hot water recharge rate H of dynamic heat pipe0Step, namely：Dynamic heat pipe can will enter in unit interval
Cold water from temperature RJIt is heated to bathing temperature R0Water；
Calculate remaining bathing time t steps：
Wherein, vnTo add up discharge time tn1When the bathing water that uses,For bathing flow, tn2It is opened to be accumulative
The time of dynamic heat pipe；V0Namely the capacity of water heater.
Further, equivalent bath water amount V computational methods are in equivalent bathing water quantity calculation step：
Wherein, μ is hot water delivery rate coefficient in water tank, 0 μ≤1 ＜.
Further, the hot water recharge rate H of dynamic heat pipe is calculated0In step, hot water recharge rate H0Computational 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, it calculates in remaining bathing time t steps, bathing flowAcquisition methods be：
When not discharging water,To set constant F0, or bathing flow when by the bathing several times of mnemonic learning user,
Calculate average bathing flow；
When discharging water, by detecting cold water flow FREquivalent bathing flow is calculated as bathing flowWherein, equivalent
Bathing flow is the hot water come from water tank and comes from flow of the cold water of tap water after water mixing valve, is equal to hot water flow
With 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, it calculates in remaining bathing time t steps, bathing flowAcquisition methods be：
When not discharging water,To set constant F0, or bathing stream when by the bathing several times of mnemonic learning user
Amount, calculates average bathing flow；
When discharging water, the period acquires practical bathing flow f1, f2, f3 ... fm,
Bathing flowWherein, m is positive integer.
Further, when dynamic heat pipe is not opened, hot water recharge rate H0It is 0.
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, 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.
Based on the remaining bathing time computational methods with dynamic heating electric water heater described in aforementioned any one, the present invention is same
When propose a kind of water heater, 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 residue with dynamic heating electric water heater of the present invention
Bathing time computational methods are particularly suitable for the calculating simultaneously with dynamic and static heating function electric heater, using bath water
Equivalent mode is measured, equivalent bathing water is converted to by the work(for doing heating tube, in conjunction with bathing flow, either current Dan Jing
State heating or static dynamic heat simultaneously, and no matter how complicated heating factors are, is converted to unified expression way multifactor,
User's residue bathing time can be accurately calculated, and can be adapted and adjust with user's bathing flow during user's bathing
It is whole, improve remaining time display accuracy.
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 reality of the remaining bathing time computational methods with dynamic heating electric water heater proposed by the invention
Apply a flow chart；
Fig. 2 is the schematic diagram of water 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
For the electric heater of static heating and dynamic heat can be carried out at the same time, namely there is electric heating tube and dynamic simultaneously
The tank of the electric heater of state heating tube, electric heater is water tank, and heating element such as electric heating tube and dynamic heat pipe are set
Set in water tank, the water tank of electric heater is that the water in closed namely water tank is full always, when releasing hot water can simultaneously into
Enter cold water supplement, and the water released is equal with the water of entrance, therefore, the volume of the water in water tank and the capacity phase of water tank
Deng when in use, when needing to carry out a large amount of cool water heatings when based on electric heating tube, when being carried out at the same time dynamic heat and static state
When heating, since heating factors are more, situation is complex, and the calculating of remaining bathing duration is also corresponding more complex, in order to solve mesh
It is preceding at the same have the electric heater of dynamic and static heating function can not the accurate calculation residue bathing time the problem of, the present embodiment
A kind of remaining bathing time computational methods with dynamic heating electric water heater are proposed, are included the following steps：
S1, user's set temperature acquisition step, acquisition user's 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, equivalent bathing water quantity calculation step, it is V to calculate water tank inner volume0, temperature be R hot water and temperature be RJ's
Cold water mix is to bathing temperature R0When the equivalent bathing water V that can mix out；When water temperature heating to set temperature in water tank
Stop heating, set temperature R is the maximum temperature during bathing at this time, will be mixed into as bathing discharges water, in water tank cold
Water, corresponding water tank temperature reduce, and therefore, water the temperature inside the box is theoretical maximum bath water by the bathing water being capable of providing when R
Amount, the water and the increased water of dynamic heat of bathing consumption are increased and decreased on the basis of equivalent bathing water V.
The premise of this step is to calculate this part hot water institute is equivalent to wash after the water in water tank has been heated to set temperature R
Bath water amount, and using this equivalent bath water amount as benchmark, being calculated, this step be not concerned with heating process be single electric heating tube also
It is electric heating tube and dynamic heat pipe while heats.
S3, the hot water recharge rate H for calculating dynamic heat pipe0Step, namely：Dynamic heat pipe can will be into unit interval
The cold water entered is from temperature RJIt is heated to bathing temperature R0Water；Wherein, the hot water recharge rate H of S3 dynamic heats pipe0Step is with before
The equivalent bathing water quantity calculation step of S2 user's set temperature acquisition step and S2 stated does not have direct precedence relationship, can first count
Calculate the hot water recharge rate H of dynamic heat pipe0, then acquire user's set temperature, calculate equivalent bathing water, it can also first acquire use
Family set temperature calculates then hot water recharge rate H that equivalent bathing water calculates dynamic heat pipe0。
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, remaining bathing time t steps are calculated：
Wherein, vnTo add up discharge time tn1When the bathing water that uses,It is obtained for acquisition or Equivalent Calculation
Bathing flow, tn2For the accumulative time for opening dynamic heat pipe；V0Namely the capacity of water heater.When user discharges water bathing,
Timing, the equivalent bathing water as consumed with the product of bathing flow are carried out to discharge time, if dynamic adds at this time
Heat is opened, to be that water tank feeds H in the unit interval0Equivalent bathing water, therefore, as a dynamic process, in water tank
Remaining equivalent bathing water is equal to total equivalent bathing water V and subtracts the equivalent bathing water consumed, while plus dynamic
The equivalent bathing water of supply is heated, when not discharging water at certain moment, the equivalent bathing water which is consumed is zero, when dynamic
When state heating is not opened, hot water recharge rate H0It is zero, this method uses the hot water that the hot water amount either generated is still consumed
Whether amount is converted to bathing water, can directly carry out plus-minus calculating, bathing and currently opened regardless of whether discharge water
Dynamic heat can accurately calculate the remaining bathing time.
The remaining bathing time computational methods with dynamic heating electric water heater of the present embodiment are particularly suitable for having simultaneously
There are dynamic and the calculating of static heating function electric heater to pass through the work(for doing heating tube in such a way that bathing water is equivalent
Equivalent bathing water is converted to, in conjunction with bathing flow, either current single static heating or static dynamic heat simultaneously no matter
How complicated heating factors are, and unified expression way is converted to 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.It can
The remaining bathing time is shown to user, allows user that there is intuitive understanding to hot water amount in water tank, avoids user to hot in water tank
It is associated with the problem of no concept causes blindly to heat between coolant-temperature gage and bathing duration, and can avoid no heat during bathing
The situation of water occurs, and user opens dynamic heat in time by observing the remaining bathing time, fed to hot water, extends remaining
The bathing time, and then can either owe the problem of heating leads to waste of energy or reduces bath comfort to avoid heating is crossed.
Equivalent bath water amount V computational methods are in equivalent bathing water quantity calculation step：
Wherein, μ is hot water delivery rate coefficient in water tank, 0 μ≤1 ＜.Different machines
Type can hot water delivery rate it is different, such as 40L machine, it is possible to release the hot water of 39L.
Calculate the hot water recharge rate H of dynamic heat pipe0In step, hot water recharge rate H0Computational 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。
It calculates in remaining bathing time t steps, when not discharging water,To set constant F0, or used by mnemonic learning
Bathing flow when the bathing several times at family calculates average bathing flow；Due to belonging to static heating process when not discharging water,
Not yet start the bathing that discharges water, therefore, practical bathing flow is zero, needs for bathing flow assignment, to calculate in current water tank
The theory remaining bathing time that temperature disclosure satisfy that, in order to enable bathing flow is more nearly practical bathing flow, Jin Erti
The accuracy for the remaining bathing time t that height is calculated, F0It is empirical value, or pass through mnemonic learning user's to set constant
The average value that bathing flow rate calculation when bathing obtains several times.
When discharging water, bathing flowAcquisition methods tool there are two types of, one of which use indirect mode Equivalent Calculation：It is logical
Cross detection cold water flow FREquivalent bathing flow is calculated as bathing flowWherein, equivalent bathing flow is to come from water tank
Interior hot water 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, heat
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.
When discharging water, bathing flowAnother acquisition methods be：
Period acquires practical bathing flow f1, f2, f3 ... fm,
Bathing flowWherein, 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.
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。
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
Based on the remaining bathing time computational methods with dynamic heating electric water heater recorded in embodiment one, this reality
It applies example and proposes a kind of water heater, 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 water heater, control device 16 is during heating process and entire bathing, according to water
Case temperature sensor 15 and user's set temperature calculate the remaining bathing time that the hot water in current water tank 11 can support, and
It is shown by display device 17, the computational methods of control device 16 are as follows：
S1, user's set temperature acquisition step, acquisition user's 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.User can pass through control panel or remote controler
Set temperature R is inputted, corresponding control unit 16 can collect the set temperature, and corresponding water heater can configure control panel
And/or remote controler.
S2, equivalent bathing water quantity calculation step, it is V that control device 16, which is calculated water tank inner volume,0, temperature be R hot water
It is R with temperatureJCold water mix to bathing temperature R0When the equivalent bathing water V that can mix out；When water temperature heating in water tank 11
To heating is stopped when set temperature, set temperature R is the maximum temperature during bathing at this time, as outlet pipe 13 is washed
Bath discharges water, and will be mixed into cold water in water tank by water inlet pipe 12, and corresponding water tank temperature reduces, therefore, when temperature is R in water tank 11
The bathing water being capable of providing is theoretical maximum bathing water, and the water and the increased water of dynamic heat of bathing consumption are equal
It is increased and decreased on the basis of equivalent bathing water V.
The premise of this step is to calculate this part hot water institute is equivalent to wash after the water in water tank has been heated to set temperature R
Bath water amount, and using this equivalent bath water amount as benchmark, calculated, it is single electric heating tube that this step, which is not concerned with heating process,
141 heating or electric heating tube 141 and dynamic heat pipe 142 heat simultaneously.
S3, control device 16 calculate the hot water recharge rate H of dynamic heat pipe0Step, namely：Dynamic heat in unit interval
Pipe can be by the cold water of entrance from temperature RJIt is heated to bathing temperature R0Water；Wherein, the hot water recharge rate of S3 dynamic heats pipe
H0Step is with S2 user's set temperature acquisition step above-mentioned and the equivalent bathing water quantity calculation steps of S2 without directly successively closing
System, can first calculate the hot water recharge rate H of dynamic heat pipe0, then acquire user's set temperature, calculate equivalent bathing water,
User's set temperature can first be acquired, calculate then hot water recharge rate H that equivalent bathing water calculates dynamic heat pipe0。
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 panel 16 calculate remaining bathing time t step：
Wherein, vnTo add up discharge time tn1When the bathing water that uses,It is obtained for acquisition or Equivalent Calculation
Bathing flow, tn2For the accumulative time for opening dynamic heat pipe；V0Namely the capacity of water heater.When user discharges water bathing,
Timing, the equivalent bathing water as consumed with the product of bathing flow are carried out to discharge time, if dynamic adds at this time
Heat is opened, to be that water tank feeds H in the unit interval0Equivalent bathing water, therefore, as a dynamic process, in water tank
Remaining equivalent bathing water is equal to total equivalent bathing water V and subtracts the equivalent bathing water consumed, while plus dynamic
The equivalent bathing water of supply is heated, when not discharging water at certain moment, the equivalent bathing water which is consumed is zero, when dynamic
When state heating is not opened, hot water recharge rate H0It is zero, this method uses the hot water that the hot water amount either generated is still consumed
Whether amount is converted to bathing water, can directly carry out plus-minus calculating, bathing and currently opened regardless of whether discharge water
Dynamic heat can accurately calculate the remaining bathing time.
Bathing flowFor acquisition or Equivalent Calculation obtain, when need acquisition when, it is also necessary to mixed water pipe (hot-water line with
The mixed water pipe of water that cold water pipe is flowed out) in setting flow sensor (being not shown in Fig. 2), for detecting bathing flow.
Algorithmic formula based on when other rate-determining steps and control device of this water heater calculate can join embodiment
Recorded in one, this will not be repeated here.The water heater of the present embodiment can accurately show the remaining bathing time to user, both can be with
Energy consumption is saved, control water heater executes accurate computer heating control, and user hot water amount in bathing can be avoided not caused enough
It is inconvenient.
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 (9)
1. a kind of remaining bathing time computational methods with dynamic heating electric water heater, which is characterized in that include the following steps：
User's set temperature acquisition step, acquisition user's set temperature R；
Equivalent bathing water quantity calculation step, it is V to calculate water tank inner volume0, temperature be R hot water and temperature be RJCold water it is mixed
It is bonded to bathing temperature R0When the equivalent bathing water V that can mix out；
Calculate the hot water recharge rate H of dynamic heat pipe0Step, namely：Dynamic heat pipe can be by the cold water of entrance in unit interval
From temperature RJIt is heated to bathing temperature R0Water；
Calculate remaining bathing time t steps：
Wherein, vnTo add up discharge time tn1When the bathing water that uses,For bathing flow, tn2Dynamic is opened to be accumulative
The time of heating tube；V0Namely the capacity of water heater.
2. computational methods according to claim 1, which is characterized in that equivalent bath water in equivalent bathing water quantity calculation step
Measuring V computational methods is：
Wherein, μ is hot water delivery rate coefficient in water tank, 0 μ≤1 ＜.
3. computational methods according to claim 2, which is characterized in that calculate the hot water recharge rate H of dynamic heat pipe0Step
In, hot water recharge rate H0Computational 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.
4. computational methods according to claim 1, which is characterized in that calculate in remaining bathing time t steps, bathing flowAcquisition methods be：
When not discharging water,To set constant F0, or bathing flow when by the bathing several times of mnemonic learning user, it calculates
Go out average bathing flow；
When discharging water, by detecting cold water flow FREquivalent bathing flow is calculated as bathing flowWherein, equivalent bathing
Flow is to come from hot water in water tank and come from flow of the cold water of tap water after water mixing valve, be equal to hot water flow with it is 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.
5. computational methods according to claim 1, which is characterized in that calculate in remaining bathing time t steps, bathing flowAcquisition methods be：
When not discharging water,To set constant F0, or bathing flow when by the bathing several times of mnemonic learning user, meter
Calculate average bathing flow；
When discharging water, the period acquires practical bathing flow f1, f2, f3 ... fm,
Bathing flowWherein, m is positive integer.
6. according to claim 1-5 any one of them computational methods, which is characterized in that when dynamic heat pipe is not opened, heat
Water recharge rate H0It is 0.
7. according to claim 1-5 any one of them computational 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 1-5 any one of them computational 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.
9. a kind of water heater based on any one of the claim 1-8 computational 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.
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| CN110822725A (en) * | 2019-12-03 | 2020-02-21 | 美的集团股份有限公司 | Water consumption determination method and device for water heater, water heater and electronic equipment |
| CN112762607A (en) * | 2021-02-09 | 2021-05-07 | 北京舍得叔叔科技有限公司 | Water storage type water heater and equivalent hot water amount measurement and control method and measurement and control device thereof |
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