CN207366988U - A kind of novel intelligent based on Architecural Physics modeling controls energy-saving bathroom heater - Google Patents
A kind of novel intelligent based on Architecural Physics modeling controls energy-saving bathroom heater Download PDFInfo
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- CN207366988U CN207366988U CN201720954971.9U CN201720954971U CN207366988U CN 207366988 U CN207366988 U CN 207366988U CN 201720954971 U CN201720954971 U CN 201720954971U CN 207366988 U CN207366988 U CN 207366988U
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Abstract
It the utility model is related to a kind of novel intelligent based on Architecural Physics modeling and control energy-saving bathroom heater, including control circuit and the original electric component of super bath;Control circuit includes single chip machine controlling circuit, temperature sensing detection circuit and humidity sensor detection circuit, relay intelligent control circuit and information display circuit and operation circuit;The original electric component of super bath includes heating lamp and exhaust fan;Control circuit by the bathroom heat dissipation model modeled based on Architecural Physics come calculate bathroom heat dispersal situations realize heating lamp open quantity intelligent control.The utility model can keep the heating lamp quantity that should open of bathroom design temperature when bath temperature reaches user's set temperature value according to bathroom physical model calculating, and automatically into corresponding keeping warm mode;Meanwhile when bathroom humidity is excessive, exhaust fan ventilation is controlled in time, the safe operation of bathroom electrical appliance had both been ensure that, and had reduced the frequency of equipment replacement, while also preferably ensure that the personal safety of bather.
Description
Technical field
It the utility model is related to super bath control technology field, and in particular to a kind of novel intelligent based on Architecural Physics modeling
Control energy-saving bathroom heater.
Background technology
As the improvement of people's living standards, one of bathroom family super bath has progressively come into our daily life.
The general super bath product for being proposed Chinese First and integrating illuminating and heating three functions of ventilation difficult to understand, whole industry super bath from 1993
Function except individual product increase anion, outside the dispensable function such as blowing it is basic without substantive breakthrough.Into 2000
All it is to concentrate in bath warmer panel change the characteristics of super bath new product afterwards.So commercially often it can be seen that some brands are a certain
Style is just the same with another pattern construction configuration feature, and only mask is different.
For super bath industry in addition to there is independent research in Ao Pudeng only a fews enterprise, the simple mould of mask leans on substantially in other enterprises at present
Imitative or OEM is lived.Product rest on more it is low and middle-grade in appearance, functionally similar.
Super bath market is opposite also immature, but while quickly popularizing, and it is big that family expenses super bath is also faced with energy consumption, security
The problems such as causing anxiety.Devise one kind herein for this and be based on 51 microcontrollers, temperature sensor DS18B20 and humidity sensor
The closed loop microcomputer feedback control circuit of DHT11, can be automatic when bath temperature reaches user's set temperature value by the circuit
Into corresponding keeping warm mode;Meanwhile when bathroom humidity is excessive, exhaust fan ventilation is controlled in time, both ensure that bathroom electricity consumption
The safe operation of device, reduces the frequency of equipment replacement, while also preferably ensure that the personal safety of bather.
Utility model content
In order to effectively improve the energy utilization efficiency of this household electrical appliance of super bath, meeting user to bath temperature demand
Under the premise of make super bath product more energy-saving safety as far as possible, the utility model provide it is a kind of sensor is monitored in real time,
Intelligent Single-Chip Based processing and physical model reasonable algorithm blend, and then are meeting user to indoor temperature needs and bathroom
In the case of safety utilization of electric power, the novel intelligent of super bath more energy-saving safety is set to control energy-saving bathroom heater as far as possible.
The utility model aim is realized by using following technical scheme.
A kind of novel intelligent based on Architecural Physics modeling controls energy-saving bathroom heater, it includes control circuit and super bath is original
Electric component;Wherein control circuit include 51 single chip machine controlling circuits, temperature sensing detection circuit and humidity sensor detection circuit,
Relay intelligent control circuit and information display circuit and operation circuit;The original electric component of super bath includes heating lamp
And exhaust fan;Control circuit calculates bathroom heat dispersal situations and then realization by the bathroom heat dissipation model modeled based on Architecural Physics
Heating lamp opens the intelligent control of quantity.
Further, the heating lamp heats light bulbs using more, enhances the controllability of super bath;Heating lamp at the same time
And two power cords of exhaust fan are connected each via one relay of series connection with microcontroller, microcontroller control relay is opened
Disconnected situation, and then control heating lamp and the opening and closing of exhaust fan the two working statuses.
Further, the temperature sensing detection circuit is precisely measured out in bathroom by temperature sensor DS18B20
Temperature and transmit calculating data that temperature data obtains to microcontroller, microcontroller further according to bathroom heat dissipation model and user sets
Fixed desired temperature, is calculated automatically from the quantity for the heating lamp that should be opened, and controls heating lamp to enter corresponding work shape
State.
Further, the humidity sensor detection circuit by humidity sensor DHT11 precisely measure out bath it is indoor
Humidity, microcontroller control the working status for the relay connected with the power cord of exhaust fan according to the humidity data received;
Exhaust fan is automatically turned on when bathroom humidity set point (such as 85%), bathroom humidity is closed automatically when being less than setting value (when such as 75%)
Exhaust fan is closed, ensures to bathe the level that indoor air humidity maintains a safety reasonable and energy savingly.
Further, the LCD1602 liquid crystal displays in described information display circuit are directly connected with 51 microcontrollers, are read
The indoor temperature and indoor humidity data that are stored in inside microcontroller are simultaneously shown;The setting button being connected directly with microcontroller
Allow user to carry out the setting of desired temperature, facilitate acquisition of the user to indoor temperature and humidity information and to expected indoor temperature
Setting.
Further, the bathroom heat dissipation model is the model calculation formula K to be radiated according to wall in architectural physics
=1/ (Ri+Re+ ∑ R) (energy saving, refers under the conditions of steady heat transfer, building enclosure both sides Air Temperature Difference for 1 degree (K,
DEG C), by the heat of 1 square metre of area transmission in 1s, unit is watt/(square metre degree) (W/ ㎡ K);In inner surface, claim
For heat exchange resistance of interior surface (Ri);In outer surface, it is known as outer surface heat exchange resistance (Re).Concrete numerical value can press《Civil buildings thermal technology sets
Count specification》(GB50176) take.Under normal circumstances, the heat exchange resistance of interior surface of peripheral structure can use Ri=0.11 ㎡ K/
W, the desirable Re=0.04 ㎡ K/W (winter situation) or 0.05 ㎡ K/W (summer situation) of outer surface heat exchange resistance), come what is established,
Final bathroom heat dissipation model is:
Shower cabinet is made of three face wall bodies and a face glass door, wherein a face wall carries windowpane, remainder is
Brick wall, parameter setting are as follows:Wall length L (m):Exterior wall length=La, side wall length=Lb, windowpane length=Lc, glass
Window width=Ld, glass door length=Le;1 length of heat bridge first position=L1,2 length of heat bridge second position=L2;Wall is high
Spend h (m):(side) wall height=glass door height=h outside;Thickness δ (m):Thickness of wall body=δ 1, heat bridge thickness=δ 2, is pasted on wall
There is tile thickness=δ 3;The thermal conductivity factor λ of material (refers under the conditions of steady heat transfer, the material of 1m thickness, the temperature difference of both side surface is
1 degree (K, DEG C), (1S) (non-1H, 1 is interior when small) in 1 second, by the heat of 1 square metre of area transmission, unit is watt/meter
Spending (W/ (mK)) is respectively:Brick wall thermal conductivity factor=λ 1, heat bridge thermal conductivity factor=λ 2, tile thermal conductivity factor=λ 3;Door and window
Heat transfer coefficient=Kt, unit are W/ (m2·K)。
Thermal resistance R=δ/(λ * b), b is correction factor, generally takes 1, therefore R=δ/λ;Usual external thermal insulation construction has more
Kind material is formed, and after the thermal resistance that need to calculate all material layer respectively, with K=1/ (Ri+Re+ ∑ R) Numerical heat transfer coefficient, takes Ri+
Re=0.15, then K=1/ (∑ R+0.15);
According to《Civil Building Energy Conservation design standard (Heating Residential Buildings part) Jilin Province's detailed rules for the implementation》Annex E exterior walls
The calculation formula of mean heat transfer coefficient is:Km=(Kp*Fp+KB1*FB1+KB2*FB2+ ...+KBn*FBn)/(Fp+FB1+FB2
+…+FBn);
In formula:The mean heat transfer coefficient (W/m2K) of Km --- exterior wall;
The heat transfer coefficient (W/m2K) of Kp --- exterior wall main body section;
KB1, KB2, KBn --- the heat transfer coefficient (W/m2K) at each heat bridge position in exterior wall periphery;
The area (m2) of Fp --- exterior wall main body section;
The area (m2) at FB1, FB2, FBn --- each position in exterior wall periphery.
Therefore:The Coefficient K p=1/ (1/ λ 1+ δ of 0.15+ δ, 3/ λ 3) of exterior wall main body section,
The Coefficient K B1=KB2=KB=1/ (2/ λ 2 of 0.15+ δ) at each heat bridge position in exterior wall periphery,
Exterior wall main body area:Fp=((La-2L1) * (h-L2))-Lc*Ld
1 area of heat bridge first position:FB1=2L1*h
2 area of heat bridge second position:FB2=(La-2L1) * L2
Window areas:FB3=Lc*Ld
Glass door area:Le*h
Single side side wall main surface accumulates:Fp=(Lb- δ 2) * h;
And using the data being calculated as the quantity opened according to control heating lamp, accomplish at utmost meeting to use
Person saves the target of electric energy on the premise of the demand of indoor temperature, opening heating lamp less as far as possible to reach.
Further, a kind of control method of the novel intelligent control energy-saving bathroom heater based on Architecural Physics modeling, it includes
Three parts below:
A, the foundation and calculating of Architecural Physics model
S1:Shower cabinet model parameter is set:Wall length L (m):Exterior wall length=La, side wall length=Lb, windowpane length
Degree=Lc, glass window width=Ld, glass door length=Le, 1 length of heat bridge first position=L1,2 length of heat bridge second position
=L2;Wall height h (m):(side) wall height=glass door height=h outside;Thickness δ (mm):Thickness of wall body=δ 1, heat bridge thickness
=δ 2, posts tile thickness=δ 3 on wall;Brick wall thermal conductivity factor=λ 1, heat bridge thermal conductivity factor=λ 2, tile thermal conductivity factor=λ 3;
The Coefficient K t of door and window;Thermal resistance R=δ/λ;
S2:Parameter is substituted into heat transfer coefficient calculation formula K=1/ (Ri+Re+ ∑ R), calculates wall different parts respectively
Heat transfer coefficient, and according to formula Km=(Kp*FB+KB1*FB1+KB2*FB2+ ...+KBn*FBn)/(Fp+FB1+FB2+ ...+FBn)
Calculate the mean heat transfer coefficient of wall;
S3:Heat transfer coefficient is substituted into heat dissipation capacity calculation formula Q=K*F* Δs T, and (Q is the indoor heat to outdoor biography, and K is wall
Body mean heat transfer coefficient, unit are that W/ ㎡ K, F are heat transfer area, and unit Shi ㎡, Δ T are indoor and outdoor temperature difference, and unit is
DEG C), calculate outwards transmission heat;
S4:The super bath light bulb of known power is taken, under the indoor temperature value of setting, by heat conservation formula Q* Δ t=P* Δs
T, calculating will keep indoor temperature constant, it is necessary to which the super bath light bulb number opened, and compared with the situation of light bulb standard-sized sheet, calculates section
Electric energy about;
B, temperature intelligentization controls
S1, after powering on, temperature sensor is preheated, after preheating, temperature sensor to microcontroller send one
A temperature data, and be stored in microcontroller internal storage space;
S2, microcontroller carry out temperature control according to the result of calculation drawn in advance by above-mentioned bathroom heat dissipation model;When
When indoor temperature is less than user's design temperature, heating lamp standard-sized sheet;When indoor temperature is greater than or equal to user's design temperature, open
Corresponding holding mode;
User's design temperature and bathroom actual temperature are included the liquid crystal display in information display circuit by S3, microcontroller
On, to facilitate user to understand indoor temperature;
S4, the process for repeating S1-S3, in the process if detecting that user carries out design temperature by operation circuit
Setting, then according to the temperature transition set as corresponding control model, and the temperature of user's new settings on liquid crystal display
It is updated;
C, intelligent humidityization controls
S1, after powering on, humidity sensor is preheated, after preheating, humidity sensor to microcontroller send one
A humidity data, and be stored in the storage area inside microcontroller;
S2, microcontroller carry out humid control, when indoor humidity is more than maximum set value, microcontroller by connect optocoupler after
Electrical appliance module opens exhaust fan, reduces indoor humidity;When indoor humidity is less than minimum setting value, exhaust fan is closed, to save
Energy consumption;When humidity is between minimum setting value and maximum set value, exhaust fan keeps original working status;
S3, microcontroller by bathroom actual humidity on liquid crystal display, with facilitate user understand indoor humidity.
Compared with prior art, the beneficial effects of the utility model:
Stronger controllability:Traditional super bath generally takes 4 heating light bulbs to warm oneself, its controllability is poor.
In order to improve this case, the utility model can employ the design of 8 heating light bulbs, be replaced by using 150W low-power bulbs
Changing the 275W high-power bulbs of script so that super bath product has stronger controllability under same heating power, and then
Lay a good foundation for the energy-saving design of this works.
The humidity control system of safety:As soon as bathroom is a space most moist in family, usual humidity is 70~80%
Up and down, up to 100% during shower.And super bath is operationally since power is larger, the high-power electricity consumption when humidity is more than 90%
Short circuit easily occurs for device.Compared to plain edition super bath, the super bath of the utility model design can be by detecting indoor humidity, intelligence
Control ventilating fan and then adjust the humidity of bathroom inner space, avoid unexpected generation.
Energy saving temperature control system:Do not have automatic temperature control capability compared to traditional super bath, the utility model leads to
The mode of user's set temperature value is crossed, when bath temperature reaches user's design temperature automatically into corresponding keeping warm mode, one
Aspect meets requirement of the user for bathing temperature, has on the other hand also achieveed the purpose that to save the energy, energy-saving and emission-reduction of linking closely
Theme.
Brief description of the drawings
Fig. 1 is the panel layout of novel energy-conserving super bath.
Fig. 2 is the structure chart of novel energy-conserving super bath.
Fig. 3 is the control flow chart of novel energy-conserving super bath.
Fig. 4 is bathroom model exterior wall floor map
Fig. 5 is bathroom model top view
Fig. 6 is bathroom model side wall floor map
Embodiment
Below in conjunction with the accompanying drawings, the utility model is described in further detail, but the embodiment of the utility model is not
It is limited to this, it is noted that the key of the utility model is the technical solution to structure and connection relation proposition, following instance
It is that people in the art can realize according to prior art program if being related to control program part.
A kind of novel intelligent based on Architecural Physics modeling controls energy-saving bathroom heater, including control circuit and the original electricity of super bath
Device component;Wherein control circuit includes 51 single chip machine controlling circuits, temperature and humidity sensing detection circuit, relay intelligent control
Circuit and information display circuit and operation circuit;And the original electric component of super bath includes heating lamp and exhaust fan;Its algorithm
Control section main contents be appropriate bathroom heat dissipation model established by architectural physics come calculate bathroom heat dispersal situations and then
Realize that heating lamp opens the intelligent control of quantity.
Fig. 1 is the panel layout of energy-saving bathroom heater, wherein being dispersed with 8 heating light bulbs and 1 exhaust on bath warmer panel
Fan;Further, the super bath heating lamp heats light bulb using 8 150W and adds to substitute common 4 300W on the market
Hot bulb mode, enhances the controllability of super bath;
Fig. 2 is the structure chart of energy-saving bathroom heater, it mainly includes control circuit and super bath part;Wherein control circuit is mainly wrapped
Include temperature sensor, humidity sensor, single chip circuit, light coupling relay, lcd liquid crystal displays, key circuit and write on monolithic
Architecural Physics model algorithm inside machine;And super bath part includes heating lamp and exhaust fan, two power cords of the two pass through string
Join light coupling relay realization and the connection of microcontroller, microcontroller can add by controlling the working status of relay to be indirectly controlled
The opening and closing state of thermolamp and exhaust fan.
Fig. 3 is the control flow chart of energy-saving bathroom heater, it includes two kinds of operational modes of control manually and intelligent automatic control;
When user selects MANUAL CONTROL mode, heating lamp is all turned at this time, and exhaust fan also works normally;When user selects intelligence
During automatic control mode, for temperature-control circuit, before temperature reaches user's design temperature indoors, heating lamp whole work
Make, indoor temperature is increased as early as possible, when indoor temperature reaches user's design temperature, single chip circuit according to passing through building in advance
The algorithm that physical model is write controls the working status of relay, and then controls the number of heating lamp work, can so protect
The constant of indoor temperature is demonstrate,proved, and the energy can be saved as far as possible;And humidity control circuit be then bathroom humidity be more than 85% when,
Microcontroller makes exhaust fan enter working status by controlling the working status of relay, declines indoor humidity and ensures to use
Electric appliance it is safe to use, while when bathroom humidity be less than 75% when, microcontroller passes through the working status of relay in a word, Jin Erguan
Exhaust fan is closed, to reach energy saving effect, when bathroom humidity is between 75%-85%, exhaust fan keeps original work shape
State is constant.
The temperature-control circuit precisely measures out the indoor temperature of bath, then root by temperature sensor DS18B20
The calculating data obtained according to bathroom physical model and the desired temperature of user's setting, are calculated automatically from the heating that should be opened
The quantity of lamp, while the program controlled heater lamp write according to being realized inside microcontroller enters corresponding working status.
Further, the DQ mouths of temperature sensor DS18B20 and the IO of microcontroller are directly connected to, by existing in advance
Corresponding reading control program is write in stc89c51 microcontrollers to realize the intelligent control to temperature;
The humidity control circuit precisely measures out the indoor humidity of bath by humidity sensor DHT11, passes through list
Piece machine realizes the program write to control the working status for the relay connected with the power cord of exhaust fan;As bathroom humidity >
Automatically turn on exhaust fan when 85%, exhaust fan is automatically closed in when bathroom humidity < 75%, ensures to bathe Interior Space reasonable and energy savingly
Air humidity degree maintains the level of a safety.
Further, the DATA mouths of humidity sensor and the IO of microcontroller are directly connected to, by advance in stc89c51
Corresponding reading control program is write in microcontroller to realize the intelligent control to humidity;
The LCD1602 liquid crystal displays are directly connected with 51 microcontrollers, can be read and are stored in inside microcontroller
Indoor temperature and indoor humidity data, and it is included on liquid crystal display in the form of user is understandable.It is direct with microcontroller at the same time
Connected setting button also allows the setting that user can simply carry out desired temperature, facilitates user to indoor temperature and humidity information
Acquisition and the setting to expected indoor temperature.
The Architecural Physics model is according to the model calculation formula K=1/ to radiate in architectural physics on wall
(Ri+Re+ ∑ R), the heat dispersal situations in bathroom are calculated by establishing rational bathroom model.And using the data being calculated as
The quantity opened according to control heating lamp, accomplishes on the premise of at utmost meeting user to the needs of indoor temperature, to the greatest extent
Heating lamp may be opened less to reach the target of saving electric energy.
The control method of the above-mentioned novel intelligent control energy-saving bathroom heater based on Architecural Physics modeling, the described method includes following
Three parts:
To make the purpose of this utility model, technical solution and advantage clearer, clear and definite, model algorithm case pair is lifted herein
Architecural Physics model algorithm in the utility model is described in further detail.It is it should be appreciated that described herein specific
Case study on implementation is only to explain the Architecural Physics model algorithm of the utility model, and without with limiting the utility model.
Fig. 4 is bathroom model exterior wall floor map, and Fig. 5 is bathroom model top view, and Fig. 6 is bathroom model side wall plane
Schematic diagram, the related physical quantity and design parameter of the bathroom model used in this specific implementation case mark in the accompanying drawings.
A, the foundation and calculating of Architecural Physics model
S1:Shower cabinet model parameter is set;
If the shower cabinet standard width of a room in an old-style house long La=2.3m, wide Lb=2.3m, floor height h=2.7m, shower cabinet is by three face wall body (La=
2.3m, Lb=2.3m, h=2.7m) formed with a face glass door (Le=1.82m, h=2.7m), wherein a face exterior wall carries glass
Glass window 3 (Lc=0.8m, Ld=0.6m), 1 length L1=0.24m of heat bridge first position, 2 length L2=of heat bridge second position
0.3m;Thickness of wall body δ 1=0.24m, armored concrete (heat bridge) thickness δ 2=0.24m, it is δ 3=0.05m to post thickness on wall
Tile 4;The wall gross area is:2.7m*2.3m*4=24.84m2;
Wherein thermal conductivity factor λ (w/ (m*k)):Brick wall thermal conductivity factor λ 1:0.81;Armored concrete (heat bridge) thermal conductivity factor λ
2:1.74;Aluminium oxide ceramics thermal conductivity factor λ 3:32;
S2:Parameter is substituted into heat transfer coefficient calculation formula K=1/ (Ri+Re+ ∑ R), and average heat transfer system is calculated to wall
Number;
According to《Civil Building Energy Conservation design standard (Heating Residential Buildings part) Jilin Province's detailed rules for the implementation》Annex E exterior walls
The calculation formula of mean heat transfer coefficient is:
Km=(Kp*FB+KB1*FB1+KB2*FB2+ ...+KBn*FBn)/(Fp+FB1+FB2+ ...+FBn);
In formula:The mean heat transfer coefficient (W/m2K) of Km --- exterior wall;
The heat transfer coefficient (W/m2K) of Kp --- exterior wall main body section;
KB1, KB2, KBn --- the heat transfer coefficient (W/m2K) at each heat bridge position in exterior wall periphery;
The area (m2) of Fp --- exterior wall main body section;
The area (m2) at FB1, FB2, FBn --- each position in exterior wall periphery.
Thermal resistance R=δ/(λ * b), b is correction factor, generally takes 1, therefore R=δ/λ;Usual external thermal insulation construction has more
Kind material is formed, and after the thermal resistance that need to calculate all material layer respectively, with K=1/ (Ri+Re+ ∑ R) Numerical heat transfer coefficient, takes Ri+
Re=0.15, then K=1/ (∑ R+0.15);
Now begin to integrally carry out heat transfer coefficient calculating to the exterior wall with window, glass door side, two sides side wall and bathroom:
1) mean heat transfer coefficient of the exterior wall with window calculate (following each letter or variable need to illustrate its implication,
Such as Kp, Fp ...) (exterior wall floor map is as shown in Figure 4):
Main body section:
Kp=1/ (0.15+0.24/0.81+0.05/32)=2.233W/ (m2·K)
Kp is the heat transfer coefficient of exterior wall brick wall (not including heat bridge and window)
Fp=【(2.3-2*0.24)*(2.7-0.3)】- 0.8*0.6=3.888m2
Fp is exterior wall tile wall area
Heat bridge position:
KB1=1/ (0.15+0.24/1.74)=3.473W/ (m2·K)
KB1 is the heat transfer coefficient of exterior wall heat bridge first position 1
FB1=2*2.7*0.24=1.296m2
FB1 is 1 area of exterior wall heat bridge first position
KB2=1/ (0.15+0.24/1.74)=3.473W/ (m2·K)
KB2 is the heat transfer coefficient of exterior wall heat bridge second position 2
FB2=(2.3-2*0.24) * 0.3=0.546m2
FB2 is 2 area of exterior wall heat bridge second position
KB3=Kt=3.18W/ (m2·K)
KB3 is the window coefficient of heat transfer, and Kt=3.18W/ (m are can be taken as by table 12·K)
FB3=0.8*0.6=0.48m2
FB3 is window areas
Outside wall average heat conducting modulus:
Km1=(Kp*Fp+KB1*FB1+KB2*FB2+KB3*FB3)/(Fp+FB1+FB2+FB3)=2.674W/ (m2·K)
Km1 is the mean heat transfer coefficient of exterior wall
The exterior wall gross area:F1=2.3m*2.7m=6.21m2
2) two sides side wall (exemplified by calculating a wherein face side wall):
Kp=1/ (0.15+0.24/0.81+0.05/32)=2.233W/ (m2·K)
Kp is the heat transfer coefficient of side wall brick wall (not including heat bridge)
Fp=(2.3-0.24) * 2.7=5.562m2
Fp is side wall brick wall area
Mean heat transfer coefficient:
Km2=Kp=2.233W/ (m2·K)
Km2 is the mean heat transfer coefficient of side wall
The side wall gross area:F2=Fp=5.562m2
3) glass door side:
The heat transfer coefficient of door and window refers to be represented with Kt, unit W/ by the heat output of unit area within the unit interval
(m2K), it is computation model to take common aluminum alloy window Low-E hollow glasses in table 1, its overall window U factor is Kt=3.18W/
(m2·K).
Therefore the heat transfer coefficient that can obtain glass door side is:Km3=Kt=3.18W/ (m2·K)
Glass door area:F3=1.82m*2.7m=4.914m2
The common door and window heat transfer coefficient calculated value of table 1
4) four sides wall mean heat transfer coefficient:
K=(Km1*F1+2*Km2*F2+Km3*F3)/(F1+2F2+F3)=2.565W/ (m2·K)
S3:Heat transfer coefficient is substituted into heat dissipation capacity calculation formula Q=K*F* Δ T, calculates outwards transmission heat;
By Coefficient K=2.565W/ (m of heat transfer area the F=22.25 ㎡ and S2 of S12K) it is updated to heat transfer side
In journey Q=K*F* Δs T;
Wherein K --- wall mean heat transfer coefficient;F --- heat transfer area;Δ T --- indoor and outdoor temperature difference.
F=22.25 ㎡, K=2.565W/ (m are known by upper calculating2·K);
If design temperature is 15 DEG C, T=15 DEG C -10 DEG C=5 DEG C of Δ, then formula Q=K*F* Δs T is substituted into
Calculate to obtain Q=22.25*2.565*5=285.4w;
If design temperature is 17 DEG C, T=17 DEG C -10 DEG C=7 DEG C of Δ, then formula Q=K*F* Δs T is substituted into
Calculate to obtain Q=22.25*2.565*7=399.7w;
S4:It is 150w to take actual super bath bulb power, under the indoor temperature value of setting, by heat conservation formula Q* Δs t=
P* Δ t, calculating will keep indoor temperature constant, it is necessary to the super bath light bulb number opened, and compared with the situation of light bulb standard-sized sheet, meter
Calculate the electric energy saved.
From the result of calculation of S3:At 15 DEG C -17 DEG C, the bright common 450W power of 3 light bulbs is substantially set to meet
Heating demands, 62.5% electric energy is saved during than light bulb standard-sized sheet.
The heat radiation power under various set temperature values, such as table 2 below can similarly be calculated.
Heat dissipation heat production result of calculation at a temperature of 2 different set of table
Wherein fractional energy savings is the energy consumption ratio than being reduced during light bulb standard-sized sheet
B, temperature intelligentization controls
S1, after powering on, temperature sensor DS18B20 is preheated, and after preheating, DS18B20 is to stc89c51
Microcontroller sends a temperature data, and is stored in microcontroller internal storage space;
S2, stc89c51 microcontroller are according to the result of calculation drawn in advance by Architecural Physics modeling, according to pre-edit
Good program carries out temperature control;When indoor temperature is less than user's design temperature, heating lamp standard-sized sheet;Be higher than when indoor temperature or
During equal to user's design temperature, corresponding holding mode is opened;
S3, stc89c51 microcontroller include user's design temperature and bathroom actual temperature in lcd1602 liquid crystal displays
On, to facilitate user to understand indoor temperature;
S4, the process for repeating S1-S3, in the process if detecting that user carries out design temperature by operation circuit
Setting, then be corresponding control model according to the code conversion write in advance, and new user's design temperature in lcd1602
It is updated on liquid crystal display;
C, intelligent humidityization controls
S1, after powering on, DHT11 humidity sensors are preheated, after preheating, DHT11 humidity sensors to
Stc89c51 microcontrollers send a humidity data, and are stored in the storage area inside microcontroller;
S2, stc89c51 microcontroller carry out humid control according to the humid control code write in advance;Work as indoor humidity
During more than 85%, stc89c51 microcontrollers open exhaust fan by connecting light coupling relay module, reduce indoor humidity;Work as interior
When humidity is less than 75%, exhaust fan is closed, to save energy consumption;When humidity is in 75%-85%, exhaust fan keeps original
Working status;
S3, stc89c51 microcontroller by bathroom actual humidity on lcd1602 liquid crystal displays, with facilitate user understand room
Interior humidity.
Further, according to the bathroom physics heat dissipation model result of calculation described in table 2:Assuming that user sets at this time
Temperature be 15-17 DEG C, then according to result of calculation, the control strategy that heating lamp should be taken herein be when indoor temperature be less than set
When constant temperature is spent, heating lamp standard-sized sheet;When indoor temperature gradually rises up to user's design temperature, at this time by the result of calculation in table 2
Understand, heating lamp need to only open 3, and that bath temperature can be maintained to be maintained at user's design temperature is constant, compared to being not added with intelligent control
Fractional energy savings is 62.5% at this time for system;The control strategy of other users design temperature is identical with above-mentioned principle, when simply keeping the temperature
The heating lamp quantity of opening is different.
Claims (5)
1. a kind of novel intelligent based on Architecural Physics modeling controls energy-saving bathroom heater, it is characterised in that including control circuit and super bath
Original electric component;Wherein control circuit includes single chip machine controlling circuit, temperature sensing detection circuit and humidity sensor detection
Circuit, relay intelligent control circuit and information display circuit and operation circuit;The original electric component of super bath includes
Heating lamp and exhaust fan.
2. a kind of novel intelligent based on Architecural Physics modeling according to claim 1 controls energy-saving bathroom heater, its feature exists
In:The heating lamp is using more heating light bulbs;Two power cords of heating lamp and exhaust fan are each via series connection at the same time
One relay is connected with microcontroller, and microcontroller control relay cut-offs situation, and then controls opening for heating lamp and exhaust fan
Open and close the two working statuses.
3. a kind of novel intelligent based on Architecural Physics modeling according to claim 1 controls energy-saving bathroom heater, its feature exists
In:The temperature sensing detection circuit precisely measures out the indoor temperature of bath by temperature sensor DS18B20 and transmits temperature
The calculating data and the desired temperature of user's setting that degrees of data is obtained to microcontroller, microcontroller further according to bathroom heat dissipation model,
The quantity for the heating lamp that should be opened is calculated automatically from, and controls heating lamp to enter corresponding working status.
4. a kind of novel intelligent based on Architecural Physics modeling according to claim 1 controls energy-saving bathroom heater, its feature exists
In:The humidity sensor detection circuit precisely measures out the indoor humidity of bath by humidity sensor DHT11, microcontroller according to
The humidity data received controls the working status for the relay connected with the power cord of exhaust fan;When bathroom humidity set point
When automatically turn on exhaust fan, exhaust fan is automatically closed when being less than setting value in bathroom humidity.
5. a kind of novel intelligent based on Architecural Physics modeling according to claim 1 controls energy-saving bathroom heater, its feature exists
In:LCD1602 liquid crystal displays in described information display circuit are directly connected with 51 microcontrollers, and reading is stored in microcontroller
The indoor temperature and indoor humidity data in portion are simultaneously shown;User can carry out for the setting button being connected directly with microcontroller
The setting of desired temperature.
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113606647A (en) * | 2021-06-25 | 2021-11-05 | 箭牌家居集团股份有限公司 | Control method and controller for fresh shower air and bathroom heater |
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2017
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN113606647A (en) * | 2021-06-25 | 2021-11-05 | 箭牌家居集团股份有限公司 | Control method and controller for fresh shower air and bathroom heater |
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