CN111879011A - Water heater intelligence heating control system based on cloud platform - Google Patents
Water heater intelligence heating control system based on cloud platform Download PDFInfo
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- CN111879011A CN111879011A CN202010853084.9A CN202010853084A CN111879011A CN 111879011 A CN111879011 A CN 111879011A CN 202010853084 A CN202010853084 A CN 202010853084A CN 111879011 A CN111879011 A CN 111879011A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 649
- 238000010438 heat treatment Methods 0.000 title claims abstract description 58
- 238000003860 storage Methods 0.000 claims abstract description 120
- 238000006243 chemical reaction Methods 0.000 claims abstract description 41
- 238000001514 detection method Methods 0.000 claims abstract description 30
- 239000008399 tap water Substances 0.000 claims abstract description 25
- 235000020679 tap water Nutrition 0.000 claims abstract description 25
- 230000001932 seasonal effect Effects 0.000 claims description 12
- 239000008236 heating water Substances 0.000 claims description 7
- 238000006467 substitution reaction Methods 0.000 claims description 5
- 230000001276 controlling effect Effects 0.000 claims description 4
- 238000005485 electric heating Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000012216 screening Methods 0.000 claims description 3
- 238000003287 bathing Methods 0.000 abstract description 12
- 241000894006 Bacteria Species 0.000 description 3
- 230000001580 bacterial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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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
- F24H9/2021—Storage heaters
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- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention discloses an intelligent heating control system of a water heater based on a cloud platform, which comprises a temperature detection terminal, an inlet water temperature acquisition unit, an outlet water temperature acquisition unit, a water consumption detection unit, a heat conversion processing unit, a heat loss platform analysis unit, a water storage tank temperature elastic regulation unit and a heating temperature control unit, can accurately calculate the total heat quantity consumed by a family user for bathing so as to calculate the hot water quantity in a water storage tank consumed by the water storage tank at the current temperature and analyze the heat loss proportion coefficient caused by the interference of cold water on the hot water in the water storage tank, comprehensively separates the water temperature value required to be heated by the electric water heater according to the heat required by the user for bathing, and combines the temperature in the water storage tank under the interference of tap water and under the influence of seasons, and can ensure that the water temperature in the water storage tank meets the hot water supply requirement of the family user, the heating temperature can be accurately controlled according to the water using habits of family members, and the loss of electric quantity is reduced.
Description
Technical Field
The invention relates to a water heater heating system, in particular to a cloud platform-based water heater intelligent heating control system.
Background
The electric water heater is a water heater which heats by taking electricity as energy. The electric water heater is divided into three types, namely a water storage type (also called a positive displacement type or a heat storage type), an instant heating type and an instant heating type, wherein the water storage type electric water heater is a fixed appliance for heating water, can store hot water for a long time or temporarily, is provided with a device for controlling or limiting the water temperature, is a common household water storage type electric water heater, is convenient to install, needs to be heated for a long time, and can be used after reaching a certain temperature.
Because the number of family members is different, the hot water quantity required for bathing and the like of each family is different, when the heating temperature is too high, the hot water cannot be consumed for one time, the hot water is used for hot and wet next time and is heated again, so that the residual water in the water storage tank is repeatedly heated, the quality of the repeatedly heated water is easy to change, the scale in the water storage tank is increased, a proper growing environment is provided for bacteria, the bacteria breeding is promoted, the energy waste is caused, the electric quantity consumption is increased, when the heating water is insufficient, the proper amount of hot water demand can not be provided for the family user, which causes the problem of insufficient hot water supply, further, the temperature required by the electric water heater can not be reasonably and accurately set according to the water consumption habit of family members so as to reduce the energy consumption, in addition, the household water usage habit cannot be dynamically adjusted according to the change of the number of family members, so that the self-adaptive adjustment operation of the heating temperature can be accurately performed according to the change of the number of family members.
Disclosure of Invention
The invention aims to provide an intelligent heating control system of a water heater based on a cloud platform, which solves the problems that the heating temperature of the water heater cannot be controlled by the amount of hot water used by family members in the past, so that the water temperature of the electric water heater is too high, the hot water is excessive, or the water temperature of the electric water heater is insufficient, so that the normal use of a user cannot be met, and the like.
The purpose of the invention can be realized by the following technical scheme:
an intelligent heating control system of a water heater based on a cloud platform comprises a temperature detection terminal, a water inlet temperature acquisition unit, a water outlet temperature acquisition unit, a water consumption detection unit, a heat conversion processing unit, a heat loss platform analysis unit, a water storage tank temperature elastic adjustment unit and a heating temperature control unit;
the temperature detection terminal is respectively connected with the heat loss platform analysis unit and the heat conversion processing unit, the heat conversion processing unit is respectively connected with the water inlet quantity temperature acquisition unit, the water outlet temperature acquisition unit, the water consumption detection unit and the heat loss platform analysis unit, and the water storage tank temperature elastic regulation unit is respectively connected with the heat loss platform analysis unit and the heating temperature control unit;
the temperature detection terminal comprises a plurality of temperature sensors which are distributed on the inner wall of the water storage tank at equal intervals from top to bottom and are used for collecting water temperatures at different water level heights in the water storage tank, sending the collected water temperatures at different water level heights to the heat loss platform analysis unit and sending the water temperature at the upper end of the water storage tank to the heat conversion processing unit;
the water inlet temperature acquisition unit is arranged at a water inlet pipeline of the mixing valve of the electric water heater, adopts a temperature sensor and is used for acquiring the temperature of tap water flowing into the water inlet pipeline of the mixing valve of the electric water heater and sending the acquired temperature of the tap water to the heat conversion processing unit;
the water outlet temperature acquisition unit is arranged at a water outlet pipeline of the mixing valve of the electric water heater and is used for acquiring the temperature of water flowing out of the water outlet pipeline of the mixing valve and sending the acquired temperature of the water at the water outlet pipeline of the mixing valve to the heat conversion processing unit;
the water consumption detection unit is arranged at a water outlet pipeline of the mixing valve of the electric water heater and is used for counting the water consumption of the water outlet pipeline in different temperature ranges and sending the detected water consumption in each temperature range to the heat conversion processing unit;
the heat conversion processing unit is respectively connected with the temperature detection terminal, the water inlet temperature acquisition unit and the water outlet temperature acquisition unit, is used for extracting the water temperature in the water storage tank, the water temperature of tap water and the water temperature at the water outlet pipeline of the mixing valve of the electric water heater, receives the water consumption of the water outlet pipeline of the electric water heater in each temperature range, which is sent by the water consumption detection unit, adopts a heat conversion recurrence formula to count the quality of the water temperature t1 in the electric water heater consumed by a user, and sends the counted quality of hot water consumed by the user at the water temperature t1 in the water storage tank to the heat loss platform analysis unit and the water storage tank temperature elastic adjustment unit respectively;
the heat loss platform analysis unit is used for receiving the water temperatures of different water level heights in the water storage tank sent by the temperature detection terminal and analyzing the residual water temperature Q in the electric water heater after useThe residue is leftAnd receiving the consumed hot water quality in the electric water heater sent by the heat conversion processing unit, and counting the consumed hot water volume in the water storage tank according to the consumed hot water quality because of the water storage in the electric water heaterThe volume of the tank is fixed, and the theoretical residual water temperature Q of the water storage tank of the electric water heater is countedTheory of thingsThe heat loss platform analysis unit compares the actual residual water temperature and the theoretical residual water temperature in the electric heating water after the user uses the hot water, and analyzes the heat loss proportional coefficient
The heat loss proportional coefficient of the electric water heater is sent to the water storage tank temperature elastic adjusting unit;
the water storage tank temperature elastic adjusting unit is respectively connected with the heat conversion processing unit and the heat loss platform analysis unit and is used for receiving a heat loss proportional coefficient of the electric water heater sent by the heat loss platform analysis unit, receiving a hot water mass M1 of water temperature T1 in the water storage tank consumed by a user and sent by the heat conversion processing unit, analyzing a water temperature value T' required to be heated under the condition that the temperature in the water storage tank is interfered by tap water and under the influence of seasons by an equivalent substitution model, and sending the water temperature value required to be heated by the elastically regulated electric water heater to the heating temperature control unit by the water temperature elastic adjusting unit;
the heating temperature control unit is used for receiving the water temperature value which is sent by the water temperature elastic regulation unit and is needed to be reached by the electric water heater after the elastic regulation and control, and automatically controlling the water temperature heated by the electric water heater to reach the water temperature value needed by the electric water heater.
Preferably, the heat conversion recurrence formula is
M1 is the mass of the water temperature t1 in the electric water heater consumed by a user, t1 is the water temperature in a water storage tank heated by the electric water heater, t2 is the water temperature of tap water, t' i is the average water temperature flowing out of the ith temperature range at the water outlet pipeline of the mixing valve of the electric water heater, vi is the water consumption in the ith temperature range, and rho is the density of water.
Preferably, the heat loss platform analysis unit analyzes the energy loss proportional coefficient of the electric water heater through the water temperatures of different water level heights in the water storage tank, and the specific steps are as follows:
w1, comparing the water temperatures of different water level heights in the water storage tank with the average water temperature in the 1 st temperature range respectively;
w2, screening out temperature sensor numbers L corresponding to water temperatures which are more than or equal to the average water temperature in the 1 st temperature range, wherein the water level heights corresponding to different temperature sensor numbers are different, and the larger the number value is, the larger the water level height is;
w3, calculating the residual water temperature in the water storage tank after use
QThe residue is leftThe heat quantity of the residual water temperature corresponding to the water in the water storage tank of the electric water heater is expressed, C is the specific heat capacity of the water, and T isfExpressed as the water temperature, m, detected by the f-th temperature sensorfExpressed as the mass of water from the level at which the f-1 st temperature sensor is located to the level at which the f-th temperature sensor is located, mf＝ρ*Vf，VfThe volume of the water storage tank is expressed from the height of the f-1 th temperature sensor to the height of the f temperature sensor;
w4 extracting the mass of hot water consumed by user, and calculating formula according to mass and volume
Obtaining the volume of hot water consumed in the electric water heater and counting the theoretical residual water temperature Q of the water storage tankTheory of things＝C(V′ρ-M1)*(t1-t2)，QTheory of thingsThe theoretical residual water temperature of the water storage tank, V' is the water storage volume of the water storage tank, M1 is the mass of the water temperature t1 in the electric water heater consumed by a user, rho is the density of water, t1 is the water temperature in the water storage tank heated by the electric water heater, and t2 is the water temperature of tap water;
w5, sequentially extracting the water temperature quantity remained in the water storage tank in the step W3 and the water temperature quantity theoretically remained in the water storage tank in the step W4, and analyzing the heat loss proportion coefficient of the electric hot water.
Preferably, the expression of the equivalent temperature substitution model is
T 'represents the temperature value which is required to be reached by heating water in a water storage tank of the electric water heater, R represents a seasonal interference coefficient, the seasonal interference coefficient corresponding to summer is 1.08, the seasonal interference coefficient corresponding to spring and autumn is 1.125, the seasonal interference coefficient corresponding to winter is 1.218, T1 represents the temperature corresponding to the mass M1 of hot water in the water storage tank consumed by a user, T2 represents the temperature of tap water, gamma represents the heat loss proportion coefficient of the electric water heater, V' represents the volume of water in the water storage tank, M1 represents the mass T1 of the water temperature in the electric water heater consumed by the user, and rho represents the density of the water.
Preferably, the intelligent heating control system of the water heater further comprises a water temperature dynamic analysis unit and a key input unit, wherein the heating temperature control unit is connected with the key input unit through the water temperature dynamic analysis unit;
the key input unit is arranged on a control panel of the electric water heater, and when the number of family members is reduced or increased, the number of current personnel and the number of original personnel are manually input on the control panel of the electric water heater;
the water temperature dynamic analysis unit is used for receiving the current personnel number and the original personnel number input by the key input unit, judging the personnel change rate, extracting the mass M1 of the water temperature t1 required to be consumed by the original personnel number, re-analyzing the temperature required to be reached by the electric water heater after the personnel number changes through an equivalent replacement temperature model, and sending the temperature required to be reached by the electric water heater after the personnel number changes to the heating temperature control unit;
the heating temperature control unit receives the temperature which is required to be reached by the electric water heater after the number of the personnel changes and is sent by the water temperature dynamic analysis unit, and automatically controls the water temperature heated by the electric water heater to reach the water temperature value required to be reached by the electric water heater.
Preferably, the water temperature dynamic analysis unit dynamically analyzes the water temperature of the electric water heater required to be reached due to the change of the number of the people according to the change of the number of the people, and the specific steps are as follows:
p1, acquiring the number of present persons and the number of original persons, and counting the variation rate of the persons
X1 is the number of the current persons, and X2 is the number of the original persons;
p2, and M1 (1+ Nb) mass of the water temperature t1 required to be consumed after the number of the statistical staff changes;
p3 expression using equivalent alternative temperature model
And replacing M1 with M', and recalculating the temperature required for heating the electric water heater after acquiring the change of the personnel.
The invention has the beneficial effects that:
according to the intelligent water heater heating control system based on the cloud platform, provided by the invention, the total heat consumed by a family user for bathing can be accurately calculated through the water inlet temperature acquisition unit, the water outlet temperature acquisition unit, the water consumption detection unit and the heat conversion processing unit, so that the hot water amount in the water storage tank consumed by the water storage tank at the current temperature is calculated, the hot water amount in the water storage tank is the hot water amount in the water heater required by the user for bathing, and reliable heat data are provided for the electric water heater for calculating the heat loss degree.
The invention carries out comparison processing on the water temperatures with different water level heights in the water storage tank through the heat loss platform analysis unit, analyzes the heat quantity corresponding to the actual water temperature which is more than or equal to the lowest bathing requirement in the water storage tank, processes the heat quantity of the actual water temperature and the theoretical residual water temperature according to the theoretical residual water temperature quantity after the bathing of a user counted by the heat conversion module, analyzes the heat loss proportion coefficient caused by the interference of cold water on the hot water in the electric water heater, can accurately count the attenuation degree caused by the interference of tap water temperature on the hot water in the residual electric water heater after the use of the user, further can accurately analyze the energy loss proportion coefficient corresponding to the hot water in the electric water heater, carries out self-adaptive regulation on the temperature of the water heated in the electric water heater according to the heat quantity of the hot water used by the user in the later period, to reduce the loss of electrical energy.
According to the invention, the water temperature value required to be heated by the electric water heater is comprehensively separated out by the water temperature elastic adjusting unit according to the heat required by bathing of a user, under the condition that the temperature in the water storage tank is interfered by tap water and under the influence of seasons, so that the water temperature in the water storage tank can meet the hot water supply requirement of a family user, the heating temperature can be accurately controlled according to the water using habits of family members, the problems of energy waste or insufficient heating temperature and the like are avoided, meanwhile, the water quality problem caused by repeatedly heating the water in the water storage tank is avoided, and the bacterial content in the water storage tank is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of an intelligent heating control system of a water heater based on a cloud platform according to the present invention;
fig. 2 is a schematic distribution diagram of the temperature sensors in the temperature detection terminal according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 and 2, an intelligent heating control system for a water heater based on a cloud platform comprises a temperature detection terminal, a water inlet temperature acquisition unit, a water outlet temperature acquisition unit, a water consumption detection unit, a heat conversion processing unit, a heat loss platform analysis unit, a water storage tank temperature elastic adjustment unit, a key input unit, a water temperature dynamic analysis unit and a heating temperature control unit.
The temperature detection terminal is respectively connected with the heat loss platform analysis unit and the heat conversion processing unit, the heat conversion processing unit is respectively connected with the water inflow temperature acquisition unit, the water outflow temperature acquisition unit, the water consumption detection unit and the heat loss platform analysis unit, the water storage tank temperature elastic adjustment unit is respectively connected with the heat loss platform analysis unit and the heating temperature control unit, and the heating temperature control unit is connected with the key input unit through the water temperature dynamic analysis unit.
The temperature detection terminal comprises a plurality of temperature sensors which are distributed on the inner wall of the water storage tank at equal intervals from top to bottom and used for collecting water temperatures at different water level heights in the water storage tank, sending the collected water temperatures at different water level heights to the heat loss platform analysis unit and sending the water temperature at the upper end of the water storage tank to the heat conversion processing unit, wherein the temperature sensors are sequentially numbered according to the sequence from bottom to top, and are respectively 1,2,3, 1, f, 1, y, and the height difference between every two adjacent temperature sensors is the same;
the inlet water temperature acquisition unit is arranged at the inlet pipeline of the mixing valve of the electric water heater, adopts a temperature sensor and is used for acquiring the temperature of the tap water flowing into the inlet pipe of the mixing valve of the electric water heater and sending the acquired temperature of the tap water to the heat conversion processing unit.
The water outlet temperature acquisition unit is arranged at a water outlet pipeline of the mixing valve of the electric water heater and used for acquiring the temperature of water flowing out of the water outlet pipeline of the mixing valve and sending the acquired temperature of the water at the water outlet pipeline of the mixing valve to the heat conversion processing unit.
The outlet conduit department at electric water heater mixing valve is installed to the water consumption detecting element, a water consumption for statistics outlet conduit is the water consumption under different temperature ranges, and send the water consumption under each temperature range that will detect to heat conversion processing unit, the water consumption is the volume, different temperature ranges include first temperature range k1, second temperature range k2, third temperature range k3, fourth temperature range k4, fifth temperature range k5 and sixth temperature range k6, corresponding temperature value specifically is respectively: k1 is more than or equal to 35 and less than 36 ℃, k2 is more than or equal to 36 and less than or equal to 37 ℃, k1 is more than or equal to 37 and less than 38 ℃, k2 is more than or equal to 38 and less than 39 ℃, k1 is more than or equal to 39 and less than 40 ℃ and k2 is more than or equal to 40 and less than 41 ℃.
The heat conversion processing unit is respectively connected with the temperature detection terminal, the water inlet temperature acquisition unit and the water outlet temperature acquisition unit, is used for extracting the water temperature in the water storage tank, the water temperature of tap water and the water temperature at the water outlet pipeline of the mixing valve of the electric water heater, receives the water consumption of the water outlet pipeline of the electric water heater in each temperature range sent by the water consumption detection unit, and adopts a heat conversion recurrence formula
The method comprises the steps of counting the mass of water temperature t1 in the electric water heater consumed by a user, sending the counted mass of hot water with the water temperature t1 in a water storage tank consumed by the user to a heat loss platform analysis unit and a water storage tank temperature elastic adjustment unit respectively, wherein M1 is the mass of the water temperature t1 in the electric water heater consumed by the user, t1 is the water temperature in the water storage tank heated by the electric water heater, t2 is the water temperature of tap water, t' i is the average water temperature flowing out of an ith temperature range at an outlet pipe of a mixing valve of the electric water heater, vi is the water consumption in the ith temperature range, and rho is the density of the water.
The heat loss platform analysis unit is used for receiving the water temperatures of different water level heights in the water storage tank sent by the temperature detection terminal and analyzing the residual water temperature Q in the electric water heater after useThe residue is leftAnd receiving the consumed hot water quality in the electric water heater sent by the heat conversion processing unit, counting the consumed hot water volume in the water storage tank according to the consumed hot water quality, and counting the theoretical residual water temperature Q of the water storage tank because the water storage tank volume in the electric water heater is fixedTheory of thingsThe heat loss platform analysis unit compares the actual residual water temperature and the theoretical residual water temperature in the electric heating water after the user uses the hot water, and analyzes the heat loss proportional coefficient
And the heat loss proportional coefficient of the electric water heater is sent to the water storage tank temperature elastic adjusting unit.
The heat loss platform analysis unit analyzes the energy loss proportional coefficient of the electric water heater through the water temperatures of different water level heights in the water storage tank, and the heat loss platform analysis unit comprises the following specific steps:
w1, comparing the water temperatures of different water level heights in the water storage tank with the average water temperature in the 1 st temperature range respectively;
w2, screening out temperature sensor numbers L corresponding to water temperatures which are more than or equal to the average water temperature in the 1 st temperature range, wherein the water level heights corresponding to different temperature sensor numbers are different, and the larger the number value is, the larger the water level height is;
w3, calculating the residual water temperature in the water storage tank after use
QThe residue is leftThe heat quantity of the residual water temperature corresponding to the water in the water storage tank of the electric water heater is expressed, C is the specific heat capacity of the water, and T isfExpressed as the water temperature, m, detected by the f-th temperature sensorfExpressed as the mass of water from the level at which the f-1 st temperature sensor is located to the level at which the f-th temperature sensor is located, mf＝ρ*Vf，VfThe volume of the water storage tank is expressed from the height of the f-1 th temperature sensor to the height of the f temperature sensor;
w4 extracting the mass of hot water consumed by user, and calculating formula according to mass and volume
Obtaining the volume of hot water consumed in the electric water heater and counting the theoretical residual water temperature Q of the water storage tankTheory of things＝C(V′ρ-M1)*(t1-t2)，QTheory of thingsThe theoretical residual water temperature of the water storage tank, V' is the water storage volume of the water storage tank, M1 is the mass of the water temperature t1 in the electric water heater consumed by a user, rho is the density of water, t1 is the water temperature in the water storage tank heated by the electric water heater, and t2 is the water temperature of tap water;
w5, sequentially extracting the water temperature quantity remained in the water storage tank in the step W3 and the water temperature quantity theoretically remained in the water storage tank in the step W4, and analyzing the heat loss proportion coefficient of the electric hot water.
The water temperature which is more than or equal to the lowest bathing requirement in the water storage tank heated by the electric water heater is analyzed through the heat loss platform analysis unit, the heat corresponding to the actual water temperature meeting the bathing requirement in the water storage tank is obtained, the heat corresponding to the theoretical water temperature remained by the water heated in the water storage tank after being used by a user is counted, the heat loss proportion coefficient of the electric water heater is analyzed through the comparison analysis between the heat of the actual water temperature and the heat of the theoretical water temperature, the attenuation degree caused by the interference of tap water temperature on hot water in the residual water heater after being used by the user can be accurately counted, the energy loss proportion coefficient corresponding to the hot water in the electric water heater can be accurately analyzed, the self-adaptive adjustment is carried out on the water heating temperature in the electric water heater according to the hot water heat used by the user in the later period, and the reliable, to reduce the loss of electrical energy.
The water storage tank temperature elastic adjusting unit is respectively connected with the heat conversion processing unit and the heat loss platform analysis unit and is used for receiving the heat loss proportional coefficient of the electric water heater sent by the heat loss platform analysis unit, receiving the hot water quality M1 of the water temperature T1 in the water storage tank consumed by the user and sent by the heat conversion processing unit, analyzing the water temperature value T required to be heated under the condition that the temperature in the water storage tank is interfered by tap water and under the influence of seasons by an equivalent replacement model, wherein the expression of the equivalent temperature replacement model is
T 'represents the temperature value required by the water in the water storage tank to be heated, R represents a seasonal interference coefficient, the seasonal interference coefficient corresponding to summer is 1.08, the seasonal interference coefficient corresponding to spring and autumn is 1.125, the seasonal interference coefficient corresponding to winter is 1.218, T1 represents the temperature corresponding to the mass M1 of hot water in the water storage tank consumed by a user, T2 represents the temperature of tap water, gamma represents a heat loss proportion coefficient, V' represents the volume of the water in the water storage tank, M1 represents the mass T1 of the water temperature in the electric water heater consumed by the user, rho represents the density of the water, and the water temperature elastic adjusting unit can elastically adjust the temperature of the electric water heater to be heatedThe water temperature value is sent to the heating temperature control unit.
Under getting rid of water storage tank interior running water interference and season's influence through temperature elasticity adjusting unit, the temperature numerical value that the hot water heating of the electric water heater needs to reach is adjusted and control in reverse according to the hot water volume that the user need use of bathing, guarantee that the water that the electric water heater heated satisfies the user needs of bathing, avoid the temperature of the electric water heater heating too high, lead to extravagant electric charge, and then make the water after the heating can't use up, there is the repeated heating, provide suitable growing environment for the bacterium, promote bacterial growing, unable reasonable use and the loss of energy according to the user and set up the temperature of heating, reduce the life of electric water heater, incrustation scale's production has been increased, and avoid the temperature of the electric water heater heating can's demand can.
And the key input unit is arranged on a control panel of the electric water heater, and when the number of family members is reduced or increased, the number of current personnel and the number of original personnel are manually input on the control panel of the electric water heater.
The water temperature dynamic analysis unit is used for receiving the current number of the personnel and the original number of the personnel input by the key input unit, judging the personnel change rate, extracting the mass M1 of the water temperature t1 required to be consumed by the original number of the personnel, re-analyzing the temperature required to be reached by the electric water heater after the change of the personnel number through the equivalent replacement temperature model, and sending the temperature required to be reached by the electric water heater after the change of the personnel number to the heating temperature control unit.
The water temperature dynamic analysis unit dynamically analyzes the water temperature of the electric water heater required to be reached due to the change of personnel according to the change of the quantity of the personnel, and the water temperature dynamic analysis unit comprises the following specific steps:
p1, acquiring the number of present persons and the number of original persons, and counting the variation rate of the persons
X1 is the number of the current persons, and X2 is the number of the original persons;
p2, and M1 (1+ Nb) mass of the water temperature t1 required to be consumed after the number of the statistical staff changes;
p3, equivalent replacement temperatureExpression of degree model
And replacing M1 with M', and recalculating the temperature required for heating the electric water heater after acquiring the change of the personnel.
The number of the personnel is increased or reduced, the hot water heated by the electric water heater is dynamically regulated again, the water temperature required to be heated when the family members of the user use the water can be met, the problem that the temperature of the heated water is insufficient or excessive due to the change of the number of the personnel can be solved, the dynamic water temperature required to be reached by the electric water heater is accurately counted, the hot water requirement of the user is met, and the energy is saved.
The heating temperature control unit is used for receiving the water temperature value which is sent by the water temperature elastic regulation unit and is required to be heated by the electric water heater after the elastic regulation and control and the temperature which is sent by the water temperature dynamic analysis unit and is required to be heated by the electric water heater after the personnel number changes, and automatically controlling the water temperature heated by the electric water heater to reach the water temperature value required to be heated by the electric water heater.
The foregoing is merely exemplary and illustrative of the principles of the present invention and various modifications, additions and substitutions of the specific embodiments described herein may be made by those skilled in the art without departing from the principles of the present invention or exceeding the scope of the claims set forth herein.
Claims (6)
1. The utility model provides a water heater intelligence heating control system based on cloud platform which characterized in that: the system comprises a temperature detection terminal, a water inlet temperature acquisition unit, a water outlet temperature acquisition unit, a water consumption detection unit, a heat conversion processing unit, a heat loss platform analysis unit, a water storage tank temperature elastic adjustment unit and a heating temperature control unit;
the temperature detection terminal is respectively connected with the heat loss platform analysis unit and the heat conversion processing unit, the heat conversion processing unit is respectively connected with the water inlet quantity temperature acquisition unit, the water outlet temperature acquisition unit, the water consumption detection unit and the heat loss platform analysis unit, and the water storage tank temperature elastic regulation unit is respectively connected with the heat loss platform analysis unit and the heating temperature control unit;
the temperature detection terminal comprises a plurality of temperature sensors which are distributed on the inner wall of the water storage tank at equal intervals from top to bottom and are used for collecting water temperatures at different water level heights in the water storage tank, sending the collected water temperatures at different water level heights to the heat loss platform analysis unit and sending the water temperature at the upper end of the water storage tank to the heat conversion processing unit;
the water inlet temperature acquisition unit is arranged at a water inlet pipeline of the mixing valve of the electric water heater, adopts a temperature sensor and is used for acquiring the temperature of tap water flowing into the water inlet pipeline of the mixing valve of the electric water heater and sending the acquired temperature of the tap water to the heat conversion processing unit;
the water outlet temperature acquisition unit is arranged at a water outlet pipeline of the mixing valve of the electric water heater and is used for acquiring the temperature of water flowing out of the water outlet pipeline of the mixing valve and sending the acquired temperature of the water at the water outlet pipeline of the mixing valve to the heat conversion processing unit;
the water consumption detection unit is arranged at a water outlet pipeline of the mixing valve of the electric water heater and is used for counting the water consumption of the water outlet pipeline in different temperature ranges and sending the detected water consumption in each temperature range to the heat conversion processing unit;
the heat conversion processing unit is respectively connected with the temperature detection terminal, the water inlet temperature acquisition unit and the water outlet temperature acquisition unit, is used for extracting the water temperature in the water storage tank, the water temperature of tap water and the water temperature at the water outlet pipeline of the mixing valve of the electric water heater, receives the water consumption of the water outlet pipeline of the electric water heater in each temperature range, which is sent by the water consumption detection unit, adopts a heat conversion recurrence formula to count the quality of the water temperature t1 in the electric water heater consumed by a user, and sends the counted quality of hot water consumed by the user at the water temperature t1 in the water storage tank to the heat loss platform analysis unit and the water storage tank temperature elastic adjustment unit respectively;
the heat loss platform analysis unit is used for receiving the water temperatures of different water level heights in the water storage tank sent by the temperature detection terminal and analyzing the residual water temperature in the electric water heater after useQThe residue is leftAnd receiving the mass of the hot water consumed in the electric water heater sent by the heat conversion processing unit, counting the volume of the hot water consumed in the water storage tank according to the mass of the consumed hot water, and counting the theoretical residual water temperature Q of the water storage tank of the electric water heater due to the fixed volume of the water storage tank in the electric water heaterTheory of thingsThe heat loss platform analysis unit compares the actual residual water temperature and the theoretical residual water temperature in the electric heating water after the user uses the hot water, and analyzes the heat loss proportional coefficient
The heat loss proportional coefficient of the electric water heater is sent to the water storage tank temperature elastic adjusting unit;
the water storage tank temperature elastic adjusting unit is respectively connected with the heat conversion processing unit and the heat loss platform analysis unit and is used for receiving a heat loss proportional coefficient of the electric water heater sent by the heat loss platform analysis unit, receiving a hot water mass M1 of water temperature T1 in the water storage tank consumed by a user and sent by the heat conversion processing unit, analyzing a water temperature value T' required to be heated under the condition that the temperature in the water storage tank is interfered by tap water and under the influence of seasons by an equivalent substitution model, and sending the water temperature value required to be heated by the elastically regulated electric water heater to the heating temperature control unit by the water temperature elastic adjusting unit;
the heating temperature control unit is used for receiving the water temperature value which is sent by the water temperature elastic regulation unit and is needed to be reached by the electric water heater after the elastic regulation and control, and automatically controlling the water temperature heated by the electric water heater to reach the water temperature value needed by the electric water heater.
2. The intelligent heating control system for the water heater based on the cloud platform is characterized in that: the heat conversion recurrence formula is
M1 represents the mass of water temperature t1 in the electric water heater consumed by a user, and t1 represents the water in the water storage tank heated by the electric water heaterAnd the temperature t2 is the temperature of tap water, t' i is the average temperature of water flowing out of the ith temperature range at the water outlet pipeline of the mixing valve of the electric water heater, vi is the water consumption in the ith temperature range, and rho is the density of the water.
3. The intelligent heating control system for the water heater based on the cloud platform as claimed in claim 2, wherein: the heat loss platform analysis unit analyzes the energy loss proportional coefficient of the electric water heater through the water temperatures of different water level heights in the water storage tank, and comprises the following specific steps:
w1, comparing the water temperatures of different water level heights in the water storage tank with the average water temperature in the 1 st temperature range respectively;
w2, screening out temperature sensor numbers L corresponding to water temperatures which are more than or equal to the average water temperature in the 1 st temperature range, wherein the water level heights corresponding to different temperature sensor numbers are different, and the larger the number value is, the larger the water level height is;
w3, calculating the residual water temperature in the water storage tank after use
QThe residue is leftThe heat quantity of the residual water temperature corresponding to the water in the water storage tank of the electric water heater is expressed, C is the specific heat capacity of the water, and T isfExpressed as the water temperature, m, detected by the f-th temperature sensorfExpressed as the mass of water from the level at which the f-1 st temperature sensor is located to the level at which the f-th temperature sensor is located, mf＝ρ*Vf，VfThe volume of the water storage tank is expressed from the height of the f-1 th temperature sensor to the height of the f temperature sensor;
w4 extracting the mass of hot water consumed by user, and calculating formula according to mass and volume
Obtaining the volume of hot water consumed in the electric water heater and counting the theoretical residual water temperature Q of the water storage tankTheory of things＝C(V′ρ-M1)*(t1-t2)，QTheory of thingsThe temperature of the water remaining for the theory of the water storage tankThe volume V' is the water storage volume of the water storage tank, M1 is the mass of the water temperature t1 in the electric water heater consumed by a user, rho is the density of water, t1 is the water temperature in the water storage tank heated by the electric water heater, and t2 is the water temperature of tap water;
w5, sequentially extracting the water temperature quantity remained in the water storage tank in the step W3 and the water temperature quantity theoretically remained in the water storage tank in the step W4, and analyzing the heat loss proportion coefficient of the electric hot water.
4. The intelligent heating control system for the water heater based on the cloud platform is characterized in that: the expression of the equivalent temperature substitution model is
T 'represents the temperature value which is required to be reached by heating water in a water storage tank of the electric water heater, R represents a seasonal interference coefficient, the seasonal interference coefficient corresponding to summer is 1.08, the seasonal interference coefficient corresponding to spring and autumn is 1.125, the seasonal interference coefficient corresponding to winter is 1.218, T1 represents the temperature corresponding to the mass M1 of hot water in the water storage tank consumed by a user, T2 represents the temperature of tap water, gamma represents the heat loss proportion coefficient of the electric water heater, V' represents the volume of water in the water storage tank, M1 represents the mass T1 of the water temperature in the electric water heater consumed by the user, and rho represents the density of the water.
5. The intelligent heating control system for the water heater based on the cloud platform as claimed in claim 4, wherein: the intelligent heating control system of the water heater also comprises a water temperature dynamic analysis unit and a key input unit, wherein the heating temperature control unit is connected with the key input unit through the water temperature dynamic analysis unit;
the key input unit is arranged on a control panel of the electric water heater, and when the number of family members is reduced or increased, the number of current personnel and the number of original personnel are manually input on the control panel of the electric water heater;
the water temperature dynamic analysis unit is used for receiving the current personnel number and the original personnel number input by the key input unit, judging the personnel change rate, extracting the mass M1 of the water temperature t1 required to be consumed by the original personnel number, re-analyzing the temperature required to be reached by the electric water heater after the personnel number changes through an equivalent replacement temperature model, and sending the temperature required to be reached by the electric water heater after the personnel number changes to the heating temperature control unit;
the heating temperature control unit receives the temperature which is required to be reached by the electric water heater after the number of the personnel changes and is sent by the water temperature dynamic analysis unit, and automatically controls the water temperature heated by the electric water heater to reach the water temperature value required to be reached by the electric water heater.
6. The intelligent heating control system for the water heater based on the cloud platform as claimed in claim 5, wherein: the water temperature dynamic analysis unit dynamically analyzes the water temperature of the electric water heater required to be reached due to the change of personnel according to the change of the quantity of the personnel, and comprises the following specific steps:
p1, acquiring the number of present persons and the number of original persons, and counting the variation rate of the persons
X1 is the number of the current persons, and X2 is the number of the original persons;
p2, and M1 (1+ Nb) mass of the water temperature t1 required to be consumed after the number of the statistical staff changes;
p3 expression using equivalent alternative temperature model
And replacing M1 with M', and recalculating the temperature required for heating the electric water heater after acquiring the change of the personnel.
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| GB2249616B (en) * | 1990-10-19 | 1994-09-07 | Imi Range Ltd | Hot water generating and supply apparatus |
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