CN206929827U - Radiant floor heating system based on energy substitution technology - Google Patents
Radiant floor heating system based on energy substitution technology Download PDFInfo
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- CN206929827U CN206929827U CN201720859969.3U CN201720859969U CN206929827U CN 206929827 U CN206929827 U CN 206929827U CN 201720859969 U CN201720859969 U CN 201720859969U CN 206929827 U CN206929827 U CN 206929827U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/20—Solar thermal
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
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Abstract
It the utility model is related to heating technology field, more particularly to a kind of radiant floor heating system based on energy substitution technology, including photo-thermal radiant floor heating system and photoelectricity radiant floor heating system；The photo-thermal radiant floor heating system includes heat supply water pipe, water tank, solar thermal collector；The photoelectricity radiant floor heating system includes exchange heating cable, solar cell, direct current stabilizer, battery, inverter and charger；The exchange heating cable and heat supply water pipe are laid on indoor floor simultaneously, are interweaved and are uniformly distributed.The system is easy to use, and effectively whole Control System Design is clear, can be monitored by touch-screen and man-machine interaction.
Description
Technical field
It the utility model is related to heating technology field, more particularly to a kind of floor panel heating based on energy substitution technology
System.
Background technology
Solar energy has been to be concerned by more and more people, many developed countries will send out as a kind of regenerative resource of cleaning
Open up important channel of the photovoltaic and photothermal technology as sustainable development.In China, photovoltaic and photothermal technology is as a kind of energy substitution skill
Art has become the important component of new energy development plan, and its commercial development and utilization is important developing direction.
Floor panel heating is compared with traditional heating system, is had the advantages that comfortable, health, service life are long, is saved.
The thermal source of traditional floor radiant heating is generally from concentrated supply of heating in the city hot water, and existing central heating system can't be accomplished completely
Green, this is also one of the main reason for causing Beijing-tianjin-hebei Region haze serious；Secondly central heating hot water temperature compared with
Height, residence comfort was not only influenceed but also thermal waste be present, the service life of water pipe also greatly shortens；In terms of maintenance cost, water
Easily there is water leakage fault in use in floor heating, deals with cumbersome, and after longtime running, pipe inner wall occurs greatly
Dirt is measured, later maintenance cost is higher.
It is an effective way of energy-saving and emission-reduction for radiant floor heating system by the use of solar energy as low-temperature heat source, still
Due to the unstability of solar energy in itself, easily influenceed by many factors such as season, place, weathers, existing photo-thermal flooring radiation is adopted
Heating system needs solve the problems, such as light source deficiency by other modes.Adopted in the prior art using exchange heating cable
Warm system, but it powers usually using civil power 220V, increases cost of use.Further, since electricity floor heating technology is also located at present
In developing stage, the heating effect of electricity floor heating is very different, situations such as power consumption is big, temperature is insufficient, temperature difficult control be present.
Utility model content
The purpose of this utility model is to overcome the shortcomings of above-mentioned technology, and provides a kind of ground based on energy substitution technology
Board radiation heating system.
The utility model to achieve the above object, using following technical scheme：
A kind of radiant floor heating system based on energy substitution technology, it is characterised in that：Adopted including photo-thermal flooring radiation
Heating system and photoelectricity radiant floor heating system；The photo-thermal radiant floor heating system includes heat supply water pipe, water tank, solar energy
Heat collector；The thermal-arrest water inlet pipe and thermal-arrest return pipe of the solar thermal collector connect with the water tank respectively, and the thermal-arrest enters
Water pipe is provided with blast pipe and the first temperature sensor, and second temperature sensor, first-class is provided with the thermal-arrest return pipe
Transmitter and collection heat-exchanger pump；The water tank opposite side is connected with heat supply water inlet pipe and heat supply return pipe, heat supply water inlet pipe and
Both ends of the heat supply return pipe respectively with heat supply water pipe are connected, be provided with the heat supply water inlet pipe heat supply water pump, electric control valve,
Second flow transmitter, three-temperature sensor, the 4th temperature sensor is installed on the heat supply return pipe；
The photoelectricity radiant floor heating system includes exchange heating cable, solar cell, direct current stabilizer, electric power storage
Pond, inverter and charger；The electric energy of the solar cell collection sends the inversion to by the direct current stabilizer
Device, the inverter are connected by multifunction electric meter with exchange heating cable；The direct current stabilizer also fills for the battery
Electricity, the charger are used for for battery charging and are the inverter power supply；
The exchange heating cable and heat supply water pipe are laid on indoor floor simultaneously, are interweaved and are uniformly distributed,
Interior is provided with Temperature Humidity Sensor.
Preferably, be connected with the circuit between the solar cell and the direct current stabilizer dc circuit breaker K1 and
D.C. contactor KM1, and one direct current voltage sensor V1 of parallel connection；Line between the direct current stabilizer and the inverter
Road is in series with DC current sensor A1, DC current sensor A2, dc circuit breaker K2 and D.C. contactor KM2；Battery
Input parallel connection direct voltage sensor V2, battery provides 48V and 24V voltages for system；220V civil powers are disconnected by exchange
Road device K4, A.C. contactor KM4, charger are connected with the battery；Between the inverter and the multifunction electric meter
AC current sensor A3, AC voltage sensor V3 are connected with circuit；The multifunction electric meter exchanges heating electric with described
AC circuit breaker K3, A.C. contactor KM3 are connected with circuit between cable；220V civil powers pass through AC circuit breaker K5 and exchanged
Contactor KM5 is connected with exchange heating cable.
Preferably, in addition to controller, the controller include DO1~DO8 ports, AI1~AI16 ports, AO1 ports,
AO2 ports, power port and RS485 PORT COMs；Wherein o controller digital quantity in DO1 and DO2 ports instructs, and controls direct current
Contactor KM1 and D.C. contactor KM2 break-make, the 48V direct currents that power supply exports from battery；DO3~DO8 ports
O controller digital quantity instructs, control A.C. contactor KM3~KM8 break-make, the confession of A.C. contactor KM4 and KM5 coil
Electricity comes from civil power 220V, the 220V alternating currents that A.C. contactor KM3, KM6~KM8 power supply exports from inverter, connects
Tentaculum KM1~KM8 is correspondingly arranged HL1~HL8 indicator lamps, and when coil obtains electric, corresponding contacts action, indicator lamp is bright；AI1~AI16
Port is used to gather the combined-voltage and electric current, fluid level transmitter signal, indoor temperature and humidity on analog signalses, including loop
Sensor signal, collection hot loop and temperature and the open degree feedback signal of flow signal and electric control valve in heat supplying loop；
AO1 ports are used to exporting the opening degree instruction of electric control valve, controller by fuzzy PID algorithm, can according to design temperature and
Actual temperature changes the aperture of electric control valve in heat supplying loop, so as to realize temperature control；Controller can be gathered and monitored
The run time of photo-thermal radiant floor heating system and photoelectricity radiant floor heating system；Power port is provided for controller and come from
The 24V direct currents of battery, this DC24V also power for touch-screen；Controller and touch-screen enter line number by RS485 PORT COMs
According to mutual biography and shared, each collection numerical value of monitoring whole system, while user instruction can be received and carry out valve in real time on touch-screen
The break-make of the control of door aperture and contactor controls；K10 is the dc circuit breaker on control system electric power loop, for control system
Manual switching.
Preferably, the output voltage of inverter provides 220V alternating currents for collection heat-exchanger pump, heat supply water pump and moisturizing battery valve,
K9 is total AC circuit breaker, and K6~K8 is the AC circuit breaker in each branch, and KM6~KM8 is the exchange in each branch
Contactor, KM6~KM8 coils obtain it is electric after can act closure, so as to start relevant device, under normal operation, breaker K1
~K10 is in closure state, and system can carry out touch-screen long-distance centralized control and automatically control, upon occurrence of an emergency situation,
The operation of breaker emergency-stop device can be passed through.
The beneficial effects of the utility model are:Electricity floor heating of warming up as two kinds of thermal source different floor panel heating sides water
Formula, each own advantage and defect.System solution applies the energy substitution technology of clean environment firendly in radiant floor heating system
On, while the control of indoor temperature and regulation are realized using the system, fully demonstrate the comprehensive utilization of new energy.Exchange hair
The laying of electric heating cable and hot water line ensure that the stability of heat supply, while have no lack of flexibility again.Self-powered design can make
System stable operation under off-network state, civil power is only needed to use to carry out temporary power under extreme weather, while can be with
Charged using paddy electricity for battery, improve energy utilization rate, saved the energy.The system adjusts electricity by fuzzy PID algorithm
The aperture of dynamic regulating valve controls indoor temperature, is precisely controlled within setting range, ensures the comfort level of interior with being
The energy saving of system.The computational methods of the system give the available total amount of heat computational methods of system and its modified computing method and
Available total amount of heat computational methods under extreme case.In the case where not needing heating, the excess energy of the system can be entered
Row stores or for basic living energy.The system is easy to use effectively, and whole Control System Design is clear, can pass through
Touch-screen is monitored and man-machine interaction.
Brief description of the drawings
Fig. 1 is the system flow chart of the utility model patent；
Fig. 2 is a part of electric control theory figure of the utility model patent；
Fig. 3 is another part electric control theory figure of the utility model patent；
Fig. 4 is the main program flow chart of the utility model patent；
Fig. 5 is the fuzzy controller model of the utility model patent.
Embodiment
Below in conjunction with the accompanying drawings and preferred embodiment describes specific embodiment of the present utility model in detail.As shown in figure 1, one
Radiant floor heating system of the kind based on energy substitution technology, including photo-thermal radiant floor heating system and photoelectricity flooring radiation are adopted
Heating system；The photo-thermal radiant floor heating system includes heat supply water pipe 1, water tank 2, solar thermal collector 3；The solar energy collection
The thermal-arrest water inlet pipe 4 and thermal-arrest return pipe 5 of hot device connect with the water tank respectively, and the thermal-arrest water inlet pipe is provided with blast pipe 6
With the first temperature sensor 7, second temperature sensor 8, first flow transmitter 9 and collection are installed on the thermal-arrest return pipe
Heat-exchanger pump 10；The water tank opposite side is connected with heat supply water inlet pipe 11 and heat supply return pipe 12, heat supply water inlet pipe and heat supply backwater
Both ends of the pipe respectively with heat supply water pipe are connected, and heat supply water pump 13, electric control valve 14, second are provided with the heat supply water inlet pipe
Flow transmitter 15, three-temperature sensor 16, the 4th temperature sensor 17 is installed on the heat supply return pipe；Water tank is provided with
Filling pipe, filling pipe are provided with moisturizing battery valve 20.
The photoelectricity radiant floor heating system includes exchange heating cable 18, solar cell, direct current stabilizer, electric power storage
Pond, inverter and charger；The electric energy of the solar cell collection sends the inversion to by the direct current stabilizer
Device, the inverter are connected by multifunction electric meter with exchange heating cable；The direct current stabilizer also fills for the battery
Electricity, the charger are used for for battery charging and are the inverter power supply；
The exchange heating cable and heat supply water pipe are laid on indoor floor simultaneously, are interweaved and are uniformly distributed,
Interior is provided with Temperature Humidity Sensor 19.
Dc circuit breaker K1 is connected with circuit between the solar cell and the direct current stabilizer and direct current connects
Tentaculum KM1, and one direct current voltage sensor V1 of parallel connection；Circuit between the direct current stabilizer and the inverter is connected
There are DC current sensor A1, DC current sensor A2, dc circuit breaker K2 and D.C. contactor KM2；The input of battery
Parallel connection direct voltage sensor V2 is held, battery provides 48V and 24V voltages for system；220V civil powers by AC circuit breaker K4,
A.C. contactor KM4, charger are connected with the battery；Connect on circuit between the inverter and the multifunction electric meter
It is connected to AC current sensor A3, AC voltage sensor V3；The multifunction electric meter is exchanged between heating cable with described
AC circuit breaker K3, A.C. contactor KM3 are connected with circuit；220V civil powers pass through AC circuit breaker K5 and A.C. contactor
KM5 is connected with exchange heating cable.
As shown in figure 1, indoor floor heating system water piping and exchange heating cable simultaneously, it is interweaved simultaneously uniform
Distribution.Hot water source in water pipe provides circulation power in water tank by heat supply water pump.Electric adjustable is also equipped with heat supplying loop
Save valve, second flow transmitter, three-temperature sensor and the 4th temperature sensor.Electric control valve receives controller AO1 and referred to
Order carries out aperture control, participates in indoor temperature regulation.Second flow transmitter, three-temperature sensor and the 4th temperature sensor
By the flow and water inlet return water temperature of controller AI port processing heating waters, and then calculate and obtain heat in supply chamber.
Another loop is collection hot loop, and solar energy is transmitted feed-tank by water circulation, collects heat-exchanger pump by solar thermal collector
The circulation power of collection hot loop is provided.Blast pipe, first flow transmitter, the first temperature sensor are also equipped with collection hot loop
And second temperature sensor, blast pipe are used for exhaust pressure relief, first flow transmitter, the first temperature sensor and second temperature pass
Sensor calculates by the flow of controller AI port processing collection hot water streams and the disengaging coolant-temperature gage of heat collector and obtains thermal-arrest
Heat.Fluid level transmitter, moisturizing battery valve and blowoff valve are also equipped with water tank.Controller can gather water box liquid digit in real time
According to, can be automatically turned on when liquid level is too low moisturizing battery valve carry out moisturizing.Blowoff valve is that manually-operated gate excludes, it is necessary to periodically open
Water tank dirt and deposition.Indoor location has Temperature Humidity Sensor, and fuzzy-adaptation PID control is participated in for gathering temperature-humidity signal.It is fuzzy
PID control is more intelligent than traditional PID control, and control accuracy is higher.The quality of PID control quality is largely
Kp、Ki、KdSelection, fuzzy-adaptation PID control is using error and error rate as input, according to different deviation and deviation ratio
On-line tuning is carried out to pid parameter, controlled device is had good dynamic and static performance.This temperature control system is by indoor temperature
With the difference of design temperature and the rate of change of the difference as input, pass through blurring, fuzzy rule inference, de-fuzzy etc.
Reason, corrected parameter to the end is obtained, and PID arithmetic process is participated in after this 3 corrected parameters are superimposed with initial parameter value
In.By using Fuzzy PID, the complex tasks such as the system that can also complete quickly is heated, is precisely controlled.
The power supply of exchange heating cable comes from photovoltaic system, photovoltaic system output 48V direct currents, passes through DC voltage-stabilizing electricity
Constant voltage is converted into DC48V connection inverters by source, after inverter output 220V alternating currents are monitored by multifunction electric meter
For exchange heating cable power supply.Battery is connected in parallel on D.C. regulated power supply exit, and photovoltaic generating system can enter to battery
Row floating charge.Battery also provides 48VDC and 24VDC power supplys for control system.220V civil powers be able to will be handed over by charger
Stream electricity is converted into direct current and is directly battery charging or is directly to exchange heating cable power supply.KM1~KM2 is direct current contact
Device, for the break-make of controller control current supply circuit, corresponding K1~K2 is dc circuit breaker, is powered back for disconnecting manually
Road.KM3~KM5 is A.C. contactor, the break-make of current supply circuit where being controlled for controller, and corresponding K3~K5 is that exchange is disconnected
Road device, for disconnecting current supply circuit manually.Fuse is installed in inverter porch and exit and carries out short-circuit overload protection.
V1 and V2 is direct current voltage sensor, detects solar panel output voltage and battery input voltage respectively, and V3 is exchange
Voltage sensor, for detecting the output voltage of inverter.A1 and A2 is DC current sensor, detects DC voltage-stabilizing electricity respectively
The output current and input current of inverter in source, A3 are AC current sensors, for detecting the output current of inverter.
As shown in Fig. 2 controller includes DO, AI, AO port, power port and RS485 PORT COMs.DO1 and DO2 ports
O controller digital quantity instructs, and controls KM1 and KM2 break-make, the 48V direct currents that power supply exports from battery；DO3
The o controller digital quantity instruction of~DO8 ports, control KM3~KM8 break-make, the power supply of A.C. contactor KM4 and KM5 coil
From civil power 220V, reason is A.C. contactor KM4 with charging of the KM5 control civil powers to battery and civil power directly to exchange hair
Electric heating cable is powered, and the power supply of this part needs to depart from photovoltaic generating system, prevents for a long time because solar energy deficiency causes system not open
It is dynamic.The 220V alternating currents that KM3, KM6~KM8 power supply export from inverter, HL1~HL8 correspond to KM1~KM8
Indicator lamp, when coil obtains electric, corresponding contacts action, indicator lamp is bright；AI1~AI16 ports are used to gather analog signalses, wrap
Include the combined-voltage on loop and electric current, fluid level transmitter signal, indoor temperature and humidity sensor signal, collection hot loop and heat supply
Temperature and flow signal on loop, and the open degree feedback signal of electric control valve；AO1 ports are used to export electric control valve
Opening degree instruction, controller can be changed electronic in heat supplying loop according to design temperature and actual temperature by fuzzy PID algorithm
The aperture of regulating valve, so as to realize temperature control；Controller can gather and monitor photo-thermal radiant floor heating system and photoelectricity
The run time of radiant floor heating system；Power port provides the 24V direct currents from battery, this DC24V for controller
Also powered for touch-screen；Controller, touch-screen and multifunction electric meter carry out data by RS485 PORT COMs and mutually pass and share,
Each collection numerical value of whole system can be monitored on touch-screen in real time, while user instruction can be received and carry out valve opening control
Controlled with the break-make of contactor.K10 is the dc circuit breaker on control system electric power loop, the manual throwing for control system
Cut.
As shown in figure 3, the output voltage of inverter provides 220V with moisturizing magnetic valve and exchanged for collection heat-exchanger pump, heat supply water pump
Electricity, K9 are total AC circuit breakers, and K6~K8 is the AC circuit breaker in each branch, and KM6~KM8 is the friendship in each branch
Flow contactor, when KM6~KM8 coils in Fig. 2 obtain it is electric after can act closure, so as to start relevant device.Normal operation
Under, breaker K1~K10 is in closure state, and system can carry out touch-screen long-distance centralized control and automatically control, when urgent
When situation occurs, the operation of breaker emergency-stop device can be passed through.
As shown in figure 4, control strategy is preferentially to use photo-thermal radiant floor heating system, adjusted by fuzzy PID algorithm
The aperture of electric control valve controls indoor temperature, if electric control valve standard-sized sheet indoor temperature is still unable to meet demand, says
The supply energy deficiency of bright now photo-thermal radiant floor heating system is, it is necessary to which photoelectricity radiant floor heating system is supplemented.If
Run photoelectricity radiant floor heating system after, indoor temperature can't reach requirement, it is necessary to using civil power for exchange heating electric
Cable is powered.If after running photoelectricity radiant floor heating system, indoor temperature overheat, photo-thermal can be reduced by fuzzy PID algorithm
The aperture of the electric control valve of radiant floor heating system adjusts indoor temperature.Photoelectricity floor panel heating can so be reduced
The start-stop time of system, be advantageous to the service life of raising system.If the aperture of electric control valve (is almost closed already less than 10%
Close), then stop photoelectricity radiant floor heating system.Here design temperature is an allowed band, and indoor temperature is not in this model
Enclose it is interior be just adjusted, can so reduce system and frequently act and adjust, improve stability.In addition, main program flow chart
In temperature change and regulation process, such as operation photo-thermal radiant floor heating system, fuzzy PID regulation electric control valve are opened
Degree, operation photoelectricity radiant floor heating system, exchange heating cable, stopping photoelectricity radiant floor heating system are supplied using civil power,
Need to set delay in a program, carry out next step again after indoor temperature tends towards stability.
Temperature control system inertia is big, and hysteresis is than more serious, and the utility model patent is using fuzzy PID algorithm to control
K in device processedp、Ki、KdOptimize, temperature control system is kept good Control platform under various operating conditions.
As shown in figure 5, from fuzzy controller model can be seen that by desired temperature and indoor temperature (now with upper a period of time
Carve) collect temperature deviation e and temperature deviation rate of change ec, e and ecThe fuzzy subset of input quantity is obtained by blurring,
Again Δ K is obtained by fuzzy rulep、ΔKiWith Δ KdFuzzy subset, finally obtain the exact value of output quantity simultaneously by precision
Respectively with the K of conventional PID controllersp、KiAnd KdSum up and be used as new control parameter to participate in regulation, export AO1 signals to
Electric control valve, change its aperture.Membership function is added in Controlling model, membership function represents exact value and fuzzy set
Membership between conjunction, temperature deviation e and temperature deviation rate of change ecTo determine to combine by the selection of degree of membership, Δ Kp、
ΔKiWith Δ KdFuzzy set and membership function determine Δ K jointlyp、ΔKiWith Δ KdExact value, membership function is usual
Defined using triangle type function.Fuzzy rule in figure is designed according to day-to-day operation experience and human brain thinking, in general,
When e is larger, K should be increasedpTemperature is rapidly achieved setting value, while reduce KiAnd Kd, to prevent stability from declining；As e and ec
For it is medium when, K should be reducedpOvershoot is prevented, suitably increases KiAnd select suitable Kd；When e is smaller, K should be increasediIt is steady to eliminate
State error, now if ecIt is larger, it should to reduce KdPrevent oscillatory occurences.
The computational methods that the utility model patent is related to：
A. in actual radiant floor heating system normal course of operation, following condition is met：
A) heat transfer process in radiant floor heating system normal course of operation is stable, all heat transfers
Analysis is carried out under the conditions of steady state heat transfer；
B) in radiant floor heating system normal course of operation, indoor temperature is constant；
C) the certain thickness insulation material laid around floor, ignore to floor lower section via the heat transfer of insulation material
Disregard, the thermal loss around floor is ignored；
D) thermal contact resistance is ignored；And layers of material uniform quality, physical property are identical and invariable；
E) hot water flowing is uniform in photo-thermal radiant floor heating system pipe, photoelectricity radiant floor heating system exchange heating electric
Cable electric current is uniform；
F) hot-water coil pipe surface with exchange heating cable surface temperature uniformity；
G) by interior wall and roof parameter weighting averagely into room air as an entirety, realize heat transfer.
B. the available heat Calculation method of radiant floor heating system
According to heat transfer principle, the available instantaneous heat quantity q (i) of radiant floor heating system：
Q (i)=qr(i)+qc(i) (1)
Wherein：
Q (i) is the available instantaneous heat quantity of radiant floor heating system, W/m2；qr(i) can for radiant floor heating system
The instantaneous radiation heat of offer, W/m2；qc(i) it is the available instantaneous convection heat of radiant floor heating system, W/m2。
C. the available heat Calculation method of photo-thermal radiant floor heating system in the radiant floor heating system proposed
Diabatic process in the radiant floor heating system proposed in photo-thermal radiant floor heating system floor is：Hot water
Heat is first transmitted to tube wall by hot water in pipe, and tube wall reheats floor, and last ground is by convection current and heat radiation mode by heat
It is transmitted to wall and room air.The computational methods of heat transfer process in floor follow the computational methods of classical thermal conduction study, this
Place repeats no more.
The available instantaneous heat quantity q of photo-thermal radiant floor heating system in the radiant floor heating system proposedPT(i)：
qPT(i)=qPTr(i)+qPTc(i) (2)
qPTr(i)=4.98 × 10-8[(tp(i)+273)4-(Tr+273)4] (3)
qPTc(i)=2.17 × [tp(i)-tr]1.31 (4)
qPT(i)=4.98 × 10-8[(tp(i)+273)4-(Tr+273)4]+2.17×[tp(i)-tr]1.31 (5)
Wherein：
qPT(i) it is the available transient heat of photo-thermal radiant floor heating system in the radiant floor heating system that is proposed
Amount, W/m2；qPTr(i) it is the available instantaneous spoke of photo-thermal radiant floor heating system in the radiant floor heating system that is proposed
Penetrate heat, W/m2；qPTc(i) it is photo-thermal radiant floor heating system available wink in proposed radiant floor heating system
When convection heat, W/m2；tp(i) floor surface temperature corresponding to photo-thermal radiant floor heating system, DEG C, the temperature is by red
Outer temperature measurer measures, for calculating the available heat of photo-thermal radiant floor heating system；trFor indoor temperature, DEG C, the temperature
Measured by indoor temperature and humidity sensor；TrFor the mean radiant temperature of non-heated, DEG C,(wherein：
tskFor the surface temperature (DEG C) of each several part；AkFor the area (m of corresponding building enclosure2))。
The available total amount of heat q of photo-thermal radiant floor heating system in the radiant floor heating system proposedPT：
Wherein：
The total time that n is run in 1 year for photo-thermal radiant floor heating system in the radiant floor heating system that is proposed,
s；qPTFor the available total amount of heat of photo-thermal radiant floor heating system in the radiant floor heating system that is proposed, W/m2.Operation
Total time is defined as：Opto-thermal system and its energy-storage system run time summation.
D. the available heat Calculation method of photoelectricity radiant floor heating system in the radiant floor heating system proposed
For photoelectricity radiant floor heating system in the radiant floor heating system that is proposed, the diabatic process in its floor
For：Heating cable heating floor is exchanged, heat is transmitted to wall and room air by last ground by convection current and heat radiation mode.
Systematically the heat transfer process in plate is different from photo-thermal radiant floor heating system for photoelectricity floor panel heating.Its computational methods
It is as follows：
qL=I2×R’ (7)
Wherein：
qLHeating cable heating ground is exchanged for photoelectricity radiant floor heating system in the radiant floor heating system that is proposed
The heat of plate unit length, W/m；I is photoelectricity radiant floor heating system exchange hair in the radiant floor heating system that is proposed
The electric current of electric heating cable, A；R ' exchanges heating cable for photoelectricity radiant floor heating system in the radiant floor heating system that is proposed
Amendment resistance, Ω/m.
Wherein：
R exchanges the resistance of heating cable for photoelectricity radiant floor heating system in the radiant floor heating system that is proposed,
Ω/m；αeFor the hot coefficient of material resistance, DEG C-1；α0For thermal coefficient of expansion, DEG C-1；tdFor the surface temperature of cable, DEG C.
The available instantaneous heat quantity q of photoelectricity radiant floor heating system in the radiant floor heating system proposedPV(j)：
qPV(j)=qPVr(j)+qPVc(j)
=4.98 × 10-8[(tp(j)+273)4-(Tr+273)4]+2.17×[tp(j)-tr]1.31 (9)
Wherein：
qPV(j) it is the available transient heat of photoelectricity radiant floor heating system in the radiant floor heating system that is proposed
Amount, W/m2；qPVr(j) it is the available instantaneous spoke of photoelectricity radiant floor heating system in the radiant floor heating system that is proposed
Penetrate heat, W/m2；qPVc(j) it is photoelectricity radiant floor heating system available wink in proposed radiant floor heating system
When convection heat, W/m2；tp(j) floor surface temperature corresponding to photoelectricity radiant floor heating system, DEG C, the temperature is by red
Outer temperature measurer measures, for calculating the available heat of photoelectricity radiant floor heating system.
The available total amount of heat q of photoelectricity radiant floor heating system in the radiant floor heating system proposedPV：
Wherein：
The total time that m is run in 1 year for photoelectricity radiant floor heating system in the radiant floor heating system that is proposed,
s；qPVFor the available total amount of heat of photoelectricity radiant floor heating system in the radiant floor heating system that is proposed, W/m2.Operation
Total time is defined as：Electro-optical system and its energy-storage system run time summation.
E. the available total amount of heat computational methods of radiant floor heating system proposed
The available total amount of heat of radiant floor heating system proposed includes：Photo-thermal radiant floor heating system can provide
Total amount of heat, the supplemental heat that provides of the auxiliary thermal source under the available total amount of heat of photoelectricity radiant floor heating system and extreme case
Amount.Thus total amount of heat q：
Wherein：
Q is the available total amount of heat of radiant floor heating system proposed, W/m2；qSFor the auxiliary heat under extreme case
The additional heat that source provides, W/m2。
F. the modified computing method of the available total amount of heat of radiant floor heating system proposed
The radiant floor heating system proposed for the utility model patent, that includes two kinds of different Heat productions.It is right
In different Heat productions, its load is different, while take into account the load of the auxiliary thermal source under extreme case.Thus, this practicality
New patent proposes to correct the calculating of the available total amount of heat of radiant floor heating system using stressor.
The total load of the radiant floor heating system proposed includes：Load, the photoelectricity of photo-thermal radiant floor heating system
The load of auxiliary thermal source under the load and extreme case of radiant floor heating system.
Stressor is LPT、LPV、LS.The total amount of heat q that modified computing method is drawnZ：
qZ=LPT·qPT+LPV·qPV+LS·qS (12)
LPT+LPV+LS=1 (13)
Wherein：
LPTThe ratio of total load is accounted for for the load of photo-thermal radiant floor heating system in the radiant floor heating system that is proposed
Example, %；LPVLoad for photoelectricity radiant floor heating system in the radiant floor heating system that is proposed accounts for total load ratio
Example, %；LSTotal load ratio, % are accounted for for the load of the auxiliary thermal source under extreme case；qZUnder modified computing method, to be proposed
The available total amount of heat of radiant floor heating system, W/m2。
G. under extreme case, the available total amount of heat computational methods of radiant floor heating system that are proposed
Under extreme case, in fact it could happen that three kinds of situations.
1) photoelectricity radiant floor heating system can not provide heat, and photo-thermal radiant floor heating system can only provide less heat
Amount, major heat are provided by auxiliary thermal source.Total amount of heat qZ’：
qZ'=qPT+qS (14)
Wherein：
qZ' it is the available total amount of heat of radiant floor heating system that is proposed under the first extreme case, W/m2。
2) photoelectricity radiant floor heating system and photo-thermal radiant floor heating system can not all provide heat, and total amount of heat is by auxiliary
Thermal source is helped to provide.When photo-thermal radiant floor heating system can not provide heat, it is necessary to immediately close off photo-thermal floor panel heating
System circulation, indoor heat is prevented to be scattered and disappeared by the system.
Total amount of heat qZ”：
qZ"=qS (15)
Wherein：
qZ" for the available total amount of heat of radiant floor heating system that under second extreme case, is proposed, W/m2。
3) photo-thermal radiant floor heating system can not provide heat, and photoelectricity radiant floor heating system can only provide less heat
Amount, major heat are provided by auxiliary thermal source.Total amount of heat qZ”’：
qZ" '=qPV+qS (16)
Wherein：
qZ" ' it is the available total amount of heat of radiant floor heating system that is proposed under the third extreme case, W/m2。
When photo-thermal radiant floor heating system can not provide heat, it is necessary to immediately close off photo-thermal radiant floor heating system
Circulation, prevents indoor heat to be scattered and disappeared by the system.
H. the calculating of a kind of radiant floor heating system based on energy substitution technology involved by the utility model patent
Method (exchange heating cable), can calculate the available total amount of heat of proposed radiant floor heating system.Remove extreme
Situation, the total amount of heat are all provided by solar energy.The utility model patent propose system relative to legacy system the Spring Festival holidays
Energy is the available energy of solar energy.
As shown in figure 1, unnecessary heat energy, which can be stored in water tank, can also be used for life heat；Unnecessary electric energy can be stored in
Household electricity is can also be used in battery.
Indoor radiant floor heating system is laid with water pipe and exchanges heating cable simultaneously, is realized and supplied using dual system
Warm, indoor temperature can set and control.The thermal response of exchange heating cable is fast, and the radiation processes of hot water are slower, dual system fortune
Row can improve the stability of heat supply and the operational efficiency of system.In the case of sunny, preferentially photo-thermal floor spoke is used
Penetrate heating system and be aided with photoelectricity radiant floor heating system, and photovoltaic generation is mainly used in battery charging；When luminous intensity drops
It is low, when indoor temperature can not reach setting value, rapid heat supply is realized using the electric energy for being obtained by photovoltaic generation and being stored.It is extreme to dislike
Under bad weather, it is directly exchange heating electric that civil power can be utilized when long-term luminous intensity is inadequate, after the power consumption of battery
Cable is powered to ensure indoor temperature, and the system instead of traditional Electric heating, improve energy use efficiency.
Solar thermal collector gets up thermal energy collecting the water in heating water tank, and circulation power is provided by collection heat-exchanger pump.Water tank
Another loop be that indoor hot water circuit is carried out by heat supply water pump, so as to realize heating.Controller collection indoor temperature letter
Number, according to desired temperature, pass through the aperture of the electric control valve in fuzzy PID algorithm regulation heat supplying loop.Collect hot loop and
Heat supplying loop is respectively provided with temperature sensor and flow transmitter, collection and monitoring for temperature, flow and energy datum.Water
Fluid level transmitter is installed, controller decides whether moisturizing by liquid level signal in case.Controller can also be gathered and supervised
Control the run time of photo-thermal radiant floor heating system.Furthermore, it is possible to manually control water pump with automatic two kinds of control methods
Start and stop.
Solar panel converts solar energy into electric energy, by D.C. regulated power supply voltage stabilizing and is conveyed to inverter, inverse
Become device to be converted into after AC220V floating for battery while generating into exchange heating cable power supply, solar panel by DC48V
Charging, battery can provide 48V and 24V direct currents for control system.Diode is installed inside D.C. regulated power supply, can
To prevent battery current reversely charging solar panel.Civil power 220V can be directly exchange heating cable power supply, can also be
In the case of battery electric energy deficiency, charged by charger for battery, ensure the service life of battery.Whole photovoltaic supplies
Electrical circuit is provided with multiple breakers, contactor, fuse and is used for remote control, automatically controls and control manually.Current sense
Device and voltage sensor are used for the monitoring of Current Voltage, by Monitoring Data decision-making system whether normal operation.Multifunction electric meter
Energy for counting photovoltaic generation supplies, and is supported for systems with data.Controller can also gather and monitor photoelectricity floor
The run time of panel type heating system.
Solar energy is substituted into traditional energy and carries out floor panel heating, the theory of energy-saving and emission-reduction has been fully demonstrated, has been the energy
Industry future developing direction.When outdoor solar light is insufficient for a long time, battery electric energy meeting wretched insufficiency, influences battery and use the longevity
Life, so the system devises and charger can be connect by civil power 220V is battery charging temporarily or using night paddy electricity is
Battery charges, and daytime puts into the scheme of heating system, so as to greatly save the energy.
Control system voluntarily have developed controller, whole heating system can be monitored and be controlled.The system is also set
Host computer interactive system has been counted, looking into for the display of system data and state, real-time curve and history curve is realized using touch-screen
The functions such as inquiry, the setting of temperature, the collection of user instruction, alarm, man-machine interface interaction are friendly.
The direct current supply of control system includes DC24V and DC48V, is provided by photovoltaic system；The Alternating Current Power Supply of control system
It is AC220V, is provided by inverter.It can be seen that whole control system power supply can be obtained by photovoltaic generating system itself, in light
According to the area of abundance, it is possible to achieve long-term self-powered off-grid operation.
The utility model patent is related to a kind of calculating side of the radiant floor heating system based on energy substitution technology simultaneously
Method (exchange heating cable).The computational methods include the available heat Calculation method of photo-thermal radiant floor heating system, photoelectricity
The available total amount of heat computational methods of the available heat Calculation method and system of radiant floor heating system.Giving simultaneously can
Available total amount of heat computational methods under the modified computing method and extreme case of the total amount of heat of offer.The utility model patent carries
The system gone out is the available energy of solar energy relative to the year amount of energy saving of legacy system.
The system can substitute traditional large scale system that central heating is carried out using fossil energy, have very strong flexible
Property, particularly there is good development prospect in the area for not possessing central heating.In addition, the system can also be applied to new energy
The experimental real-training teaching of specialty, is a set of multiple functional, theoretical and integrated practical operation actual training device, satisfiable real training item
Mesh includes：The experiment of different type solar panel energy conversion, the experiment of solar energy off-network electricity generation system, solar storage battery are deposited
Store up experiment, controller for solar research experiment, off-network inverter research experiment, the experiment of solar power system load characteristic, prison
Control operating energy loss experiment, Power Quality Detection experiment, the experiment of electricity floor heating system generating efficiency, electricity floor heating system performance testing reality
Test, the influence reality of the experiment of solar energy heating energy conversion principle, solar energy heat collection pipe characteristic test experiment, environment to photothermal deformation
Test, the connection of solar thermal utilization functional experiment, Solar Energy Heat Utilization System pipeline is tested, the application principle of solar thermal utilization is real
Test, the experiment of the operation principle of flat plate collector, the test of low-temperature radiant floor heating system and experiment, different type floor spoke
The contrast of heating system is penetrated with analyzing experiment etc..
In the case where not needing heating, the excess energy of the system can be stored or for basic living energy.
Heat energy can be stored in water tank, and electric energy can be stored in battery.The unnecessary energy can also meet basic use heat and power demand.
Described above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these improve and
Retouching also should be regarded as the scope of protection of the utility model.
Claims (4)
- A kind of 1. radiant floor heating system based on energy substitution technology, it is characterised in that：Including photo-thermal floor panel heating System and photoelectricity radiant floor heating system；The photo-thermal radiant floor heating system includes heat supply water pipe, water tank, solar energy collection Hot device；The thermal-arrest water inlet pipe and thermal-arrest return pipe of the solar thermal collector connect with the water tank respectively, the thermal-arrest water inlet Pipe is provided with blast pipe and the first temperature sensor, and second temperature sensor, first flow are provided with the thermal-arrest return pipe Transmitter and collection heat-exchanger pump；The water tank opposite side is connected with heat supply water inlet pipe and heat supply return pipe, heat supply water inlet pipe and confession Both ends of the hot return pipe respectively with heat supply water pipe are connected, and heat supply water pump, electric control valve, are provided with the heat supply water inlet pipe Two flow transmitters, three-temperature sensor, the 4th temperature sensor is installed on the heat supply return pipe；The photoelectricity radiant floor heating system includes exchange heating cable, solar cell, direct current stabilizer, battery, inverse Become device and charger；The electric energy of the solar cell collection sends the inverter, institute to by the direct current stabilizer Inverter is stated to be connected with exchange heating cable by multifunction electric meter；The direct current stabilizer also charges for the battery, institute State charger be used for for the battery charge and be the inverter power supply；The exchange heating cable and heat supply water pipe are laid on indoor floor simultaneously, are interweaved and are uniformly distributed, indoors Provided with Temperature Humidity Sensor.
- 2. the radiant floor heating system according to claim 1 based on energy substitution technology, it is characterised in that：It is described too It is positive to be connected with dc circuit breaker K1 and D.C. contactor KM1 on circuit between battery and the direct current stabilizer, and simultaneously Join a direct current voltage sensor V1；Circuit between the direct current stabilizer and the inverter is in series with DC current sensing Device A1, DC current sensor A2, dc circuit breaker K2 and D.C. contactor KM2；The input parallel connection direct voltage of battery Sensor V2, battery provide 48V and 24V voltages for system；220V civil powers by AC circuit breaker K4, A.C. contactor KM4, Charger is connected with the battery；Alternating current is connected with circuit between the inverter and the multifunction electric meter to spread Sensor A3, AC voltage sensor V3；The multifunction electric meter is connected with friendship with the circuit exchanged between heating cable Flow breaker K3, A.C. contactor KM3；220V civil powers are by AC circuit breaker K5 and A.C. contactor KM5 with exchanging heating electric Cable connects.
- 3. the radiant floor heating system according to claim 2 based on energy substitution technology, it is characterised in that：Also include Controller, the controller include DO1~DO8 ports, AI1~AI16 ports, AO1 ports, AO2 ports, power port and RS485 PORT COMs；Wherein o controller digital quantity in DO1 and DO2 ports instructs, and controls D.C. contactor KM1 and direct current to connect Tentaculum KM2 break-make, the 48V direct currents that power supply exports from battery；DO3~DO8 ports o controller digital quantity Instruction, control A.C. contactor KM3~KM8 break-make, the power supply of A.C. contactor KM4 and KM5 coil come from civil power 220V, handed over The 220V alternating currents that stream contactor KM3, KM6~KM8 power supply export from inverter, contactor KM1~KM8 are correspondingly set HL1~HL8 indicator lamps are put, when coil obtains electric, corresponding contacts action, indicator lamp is bright；AI1~AI16 ports are used to gather analog quantity Combined-voltage and electric current, fluid level transmitter signal, indoor temperature and humidity sensor signal, thermal-arrest on signal, including loop return The open degree feedback signal of temperature and flow signal and electric control valve on road and heat supplying loop；AO1 ports are used to export electricity The opening degree instruction of dynamic regulating valve, controller can be changed heat supply according to design temperature and actual temperature and be returned by fuzzy PID algorithm The aperture of electric control valve on road, so as to realize temperature control；Controller can gather and monitor photo-thermal floor panel heating system The run time of system and photoelectricity radiant floor heating system；Power port provides the 24V direct currents from battery for controller, This DC24V also powers for touch-screen；Controller and touch-screen carry out data by RS485 PORT COMs and mutually pass and share, and touch Each collection numerical value of monitoring whole system, while user instruction can be received and carry out valve opening control and contactor in real time on screen Break-make control；K10 is the dc circuit breaker on control system electric power loop, the manual switching for control system.
- 4. the radiant floor heating system according to claim 3 based on energy substitution technology, it is characterised in that：Inverter Output voltage provide 220V alternating currents for collection heat-exchanger pump, heat supply water pump and moisturizing battery valve, K9 is total AC circuit breaker, K6~ K8 is the AC circuit breaker in each branch, and KM6~KM8 is the A.C. contactor in each branch, and KM6~KM8 coils obtain Closure can be acted after electricity, so as to start relevant device, under normal operation, breaker K1~K10 is in closure state, system Touch-screen long-distance centralized control can be carried out and automatically controlled, upon occurrence of an emergency situation, breaker emergent stopping can be passed through The operation of equipment.
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| CN201720859969.3U CN206929827U (en) | 2017-07-13 | 2017-07-13 | Radiant floor heating system based on energy substitution technology |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107218641A (en) * | 2017-07-13 | 2017-09-29 | 天津中德应用技术大学 | Radiant floor heating system and its method of work, heat Calculation method based on energy substitution technology |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107218641A (en) * | 2017-07-13 | 2017-09-29 | 天津中德应用技术大学 | Radiant floor heating system and its method of work, heat Calculation method based on energy substitution technology |
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