CN109000381A - Photovoltaic-loop hot-water heating system and progress control method - Google Patents
Photovoltaic-loop hot-water heating system and progress control method Download PDFInfo
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- CN109000381A CN109000381A CN201810730835.0A CN201810730835A CN109000381A CN 109000381 A CN109000381 A CN 109000381A CN 201810730835 A CN201810730835 A CN 201810730835A CN 109000381 A CN109000381 A CN 109000381A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 122
- 238000010438 heat treatment Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims description 10
- 239000006200 vaporizer Substances 0.000 claims abstract description 30
- 239000003507 refrigerant Substances 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 10
- 238000010521 absorption reaction Methods 0.000 claims description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- 230000005855 radiation Effects 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 239000005341 toughened glass Substances 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 2
- 230000005494 condensation Effects 0.000 claims 1
- 238000009833 condensation Methods 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 description 5
- 239000002131 composite material Substances 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
- F28D15/0266—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with separate evaporating and condensing chambers connected by at least one conduit; Loop-type heat pipes; with multiple or common evaporating or condensing chambers
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- Engineering & Computer Science (AREA)
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- Sustainable Development (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
- Photovoltaic Devices (AREA)
Abstract
The present invention provides a kind of photovoltaic-loop hot-water heating system, it includes collection hot vaporizer, preheating water tank, controller, second evaporator, condenser and hot water storage tank, condenser is arranged inside hot water storage tank, second evaporator is arranged inside preheating water tank, collection hot vaporizer is internally provided with the first thermal-collecting tube group and the second thermal-collecting tube group, second thermal-collecting tube group is common thermal-collecting tube, loop circuit heat pipe is formed between first thermal-collecting tube group and hot water storage tank, solar energy water source heat pump loop is formed between second thermal-collecting tube group and preheating water tank, temperature sensor is internally provided with the first temperature threshold and second temperature threshold value, when the temperature for the collection hot vaporizer that temperature sensor monitors is higher than the first temperature threshold or is lower than second temperature threshold value, controller control system opens solar energy water source heat pump loop to promote the hot water temperature of hot water storage tank Degree.
Description
Technical field
The invention belongs to energy-saving building technology fields, more particularly to a kind of photovoltaic-loop hot-water heating system and fortune
Row control method.
Background technique
Traditional photovoltaic system can only convert electric energy for about 15% incident solar energy, remaining major part is converted to make
The heat of photovoltaic system temperature rise, photovoltaic-loop circuit heat pipe system is similar with independent solar energy photovoltaic system, in summer operating mode
When lower operation, it may appear that the excessively high unfavorable operating condition of photovoltaic panel, heat absorption plate temperature, and excessively high operating temperature is in addition to influencing solar energy
Except the photoelectric conversion efficiency and service life of photovoltaic panel, it also will lead to solar energy thermal conversion efficiency and be decreased obviously.In winter
It is later that heat pipe loop start is easy to appear when work, operating condition unfavorable earlier out of service, and outdoor environment temperature is too low, heat absorption
Excessive temperature differentials between plate and environment, heat waste is higher, causes system photo-thermal efficiency lower.Especially Xia Redong it is cold or tropical/subtropical zone
Climatic province will generate unfavorable shadow to system photo-thermal, photoelectric efficiency in application, system operating temperatures keep higher level for a long time
It rings.Therefore, it is necessary to the unfavorable operating condition for improving the system in the application of each climatic province of adopting an effective measure, to further increase it
Solar energy composite transfer efficiency.
Summary of the invention
In order to overcome the drawbacks of the prior art, the present invention provides a kind of photovoltaic-loop hot-water heating system and operation control
Method processed, the system reduce the operating temperature of PV/LHP collection hot vaporizer in summer, improve loop circuit heat pipe loop start in winter
Later, the unfavorable operating condition such as more early out of service, system operation has certain adaptability to changes, and solar energy composite conversion can be improved
Rate.
Specifically, the present invention provides a kind of photovoltaic-loop hot-water heating system comprising collection hot vaporizer, preheating water
Case, controller, the second evaporator, condenser and hot water storage tank, the condenser is arranged inside the hot water storage tank, described
Second evaporator is arranged inside the preheating water tank,
The collection hot vaporizer includes the first thermal-collecting tube group, the second thermal-collecting tube group and flat plate collector, first collection
Heat pipe heat is the first evaporator containing refrigerant, and the second thermal-collecting tube group is set in the outside of the first thermal-collecting tube group,
First thermal-collecting tube group and the second thermal-collecting tube group are fixed on the top of the flat plate collector by pressing technology,
Vapor uptake road and liquid down-comer road, institute are provided between the first thermal-collecting tube group and the condenser
State and be provided with the first pipeline and the second pipeline between the second thermal-collecting tube group and the preheating water tank, second evaporator with it is described
It is provided with third pipeline and the 4th pipeline between condenser, the first valve, second pipeline are provided on first pipeline
On be provided with the second valve and circulating pump, the vapor uptake road is provided with third valve, the liquid down-comer road
On be provided with the 4th valve, the collection hot vaporizer is internally provided with temperature sensor, the temperature sensor, the first valve,
Second valve, third valve, the 4th valve and circulating pump connect with the controller communication respectively and are controlled by the control
Device,
Form loop circuit heat pipe between the first thermal-collecting tube group and the hot water storage tank, the second thermal-collecting tube group with it is described
Solar energy water source heat pump loop is formed between preheating water tank, the temperature sensor is internally provided with the first temperature threshold and the
Two temperature thresholds, when the temperature for the collection hot vaporizer that the temperature sensor monitors is lower than the first temperature threshold or higher than second
When temperature threshold, system is with loop circuit heat pipe mode operation；When the temperature for the collection hot vaporizer that the temperature sensor monitors is high
In the first temperature threshold or when being lower than second temperature threshold value, the controller control system opens solar energy water source heat pump loop mould
Formula is run to regulate and control the hot water temperature of hot water storage tank.
Preferably, the first thermal-collecting tube group is the first evaporator of loop circuit heat pipe operational mode.
Preferably, the flat plate collector is photovoltaic flat plate collector, and the flat plate collector is irradiated by sunlight
Face to shady face successively include tempered glass cover plate, air layer, TPT layers transparent, the first EVE glue-line, photovoltaic cell, black TPT
Layer, the 2nd EVE glue-line, heat absorption aluminum layer and insulating layer, the temperature sensor, the first thermal-collecting tube group and the second thermal-collecting tube
Group is arranged on the heat absorption aluminum layer.
Preferably, the second evaporator and the vapor uptake road described in the third piping connection, the third pipeline
On be provided with compressor, the second evaporator described in the 4th piping connection and the liquid down-comer road, the 4th pipeline
On be provided with throttle valve.
Preferably, the first thermal-collecting tube group and the second thermal-collecting tube group are solar energy heat collection pipe group.
Preferably, the temperature of the collection hot vaporizer monitored when the temperature sensor is higher than the first temperature threshold or is lower than
When second temperature threshold value, the controller opens the first valve and the second valve simultaneously closes off third valve and the 4th valve
Door, and start circulating pump, the second thermal-arrest pipeline absorbs solar radiation heat and is transferred to preheating water tank, and preheating water tank steams with second
After sending out device progress heat exchange, solar energy water resource heat pump promotes low-grade energy by refrigerant to meet the hot water temperature of hot water storage tank
It is required that.
Preferably, first temperature threshold is 75 degrees Celsius, and the second temperature threshold value is 20 degrees Celsius.
Preferably, the second thermal-collecting tube group and the first thermal-collecting tube group are disposed as U-shaped.
Preferably, the temperature sensor is arranged in the heat absorption aluminum layer.
Preferably, the present invention provides a kind of photovoltaic-loop hot water progress control method comprising following steps:
Temperature inside S1, temperature sensor monitoring flat plate collector, when the collection hot vaporizer that temperature sensor monitors
Temperature lower than the first temperature threshold or be higher than second temperature threshold value when, system with loop circuit heat pipe mode normal operation；
The temperature that S2, the temperature inside flat plate collector are higher than inside the first temperature threshold or flat plate collector is lower than
When second temperature threshold value, temperature sensor sends temperature signal to controller；
S3, controller receive the temperature signal that the temperature sensor is sent, and controller control system opens solar energy water
Source heat pump loop mode operation, opens the first valve and the second valve simultaneously closes off third valve and the 4th valve, and
Start circulating pump, the second thermal-arrest pipeline absorbs solar radiation heat and is transferred to preheating water tank, preheating water tank and the second evaporator into
After row heat exchange, solar energy water resource heat pump promotes low-grade energy by refrigerant to meet the hot water temperature of hot water storage tank and require.
Preferably, first temperature threshold is 75 degrees Celsius, and the second temperature threshold value is 20 degrees Celsius.
Compared with prior art, the invention has the following advantages:
The present invention reduces the operating temperature of PV/LHP collection hot vaporizer in summer, improves loop circuit heat pipe loop start in winter
Later, the unfavorable operating condition such as more early out of service, system operation has certain adaptability to changes, and solar energy composite conversion can be improved
Rate.
Detailed description of the invention
Fig. 1 is a kind of photovoltaic-loop circuit heat pipe/heat pump hot-water system of the present invention and progress control method schematic diagram；
Fig. 2 is PV/LHP collection hot vaporizer transverse cross-sectional view of the present invention.
Specific embodiment
Below with reference to the attached drawing exemplary embodiment that the present invention will be described in detail, feature and aspect.It is identical attached in attached drawing
Icon note indicates element functionally identical or similar.Although the various aspects of embodiment are shown in the attached drawings, unless special
It does not point out, it is not necessary to attached drawing drawn to scale.
Specifically, the present invention provides a kind of photovoltaic-loop hot-water heating system comprising collection hot vaporizer 1, preheating water
Case 2, controller 7, the second evaporator 15, condenser 16 and hot water storage tank 17, condenser 16 are arranged inside hot water storage tank 17,
Second evaporator 15 is arranged inside preheating water tank 2.
Collecting hot vaporizer 1 includes the first thermal-collecting tube group 5, the second thermal-collecting tube group 18 and flat plate collector 19, the first thermal-arrest
Pipe group 5 and the second thermal-collecting tube group 18 are mutually set-located.First thermal-collecting tube group 5 and the second thermal-collecting tube group 18 pass through lamination
Technology is arranged on flat plate collector 19.
It is provided with vapor uptake road 3 and liquid down-comer road 4 between first thermal-collecting tube group 5 and condenser 16, second
The first pipeline 101 and the second pipeline 102, the second evaporator 15 and condenser are provided between thermal-collecting tube group 18 and preheating water tank 2
It is provided with third pipeline 103 and the 4th pipeline 104 between 16, the first valve 9, the second pipeline 102 are provided on the first pipeline 101
On be provided with the second valve 10 and circulating pump 6, third valve 11 is provided on vapor uptake road 3, on liquid down-comer road 4
It is provided with the 4th valve 12, flat plate collector is provided with temperature sensor 8, temperature sensor 8, the first valve 9, the second valve
10, third valve 11, the 4th valve 12 and circulating pump 6 respectively with 7 communication connection of controller and be controlled by controller 7.
Loop circuit heat pipe is formed between first thermal-collecting tube group 5 and hot water storage tank 17, the first thermal-collecting tube group 5 is the first evaporation
Device forms solar energy water resource heat pump ring as the evaporator of loop circuit heat pipe between the second thermal-collecting tube group 18 and preheating water tank 2
Road, temperature sensor 8 is internally provided with the first temperature threshold and second temperature threshold value, when the collection that temperature sensor 8 monitors
The temperature of hot vaporizer is lower than the first temperature threshold or when being higher than second temperature threshold value, and system is with loop circuit heat pipe mode operation；When
When the temperature for the collection hot vaporizer that temperature sensor 8 monitors is higher than the first temperature threshold or is lower than second temperature threshold value, control
7 control system of device opens solar energy water source heat pump loop to regulate and control the hot water temperature of hot water storage tank.
Preferably, flat plate collector 19 by sunlight shadow surface to shady face successively include tempered glass cover plate, air layer 21,
Transparent TPT layer 31, the first EVE glue-line 41, photovoltaic cell 51, black TPT layer 61, the 2nd EVE glue-line 71, heat absorption aluminum layer 81 with
And insulating layer.Temperature sensor setting is on heat absorption aluminum layer 81.
Preferably, the second evaporator of third piping connection and vapor uptake road are provided with compressor on third pipeline, and
Four the second evaporators of piping connection and liquid down-comer road are provided with throttle valve on the 4th pipeline.
Preferably, the first thermal-collecting tube group and the second thermal-collecting tube group are solar energy heat collection pipe group, and the second thermal-collecting tube group is using general
Logical thermal-collecting tube, is used for solar energy heating.First thermal-collecting tube group is internally provided with condensing agent.
Preferably, the temperature of the collection hot vaporizer monitored when temperature sensor 8 is higher than the first temperature threshold or lower than the
When two temperature thresholds, controller opens the first valve and the second valve simultaneously closes off third valve and the 4th valve, and
Start circulating pump, the second thermal-arrest pipeline absorbs solar radiation heat and is transferred to preheating water tank 2, preheating water tank 2 and the second evaporator
After carrying out heat exchange, solar energy water resource heat pump promotes low-grade energy by refrigerant and wants to meet the hot water temperature of hot water storage tank
It asks.
Preferably, the first temperature threshold is 75 degrees Celsius, and second temperature threshold value is 20 degrees Celsius.
Preferably, the present invention provides a kind of photovoltaic-loop hot water progress control method comprising following steps:
Temperature inside S1, temperature sensor monitoring flat plate collector, when the collection hot vaporizer that temperature sensor monitors
Temperature lower than the first temperature threshold or be higher than second temperature threshold value when, system with loop circuit heat pipe mode normal operation；
The temperature that S2, the temperature inside flat plate collector are higher than inside the first temperature threshold or flat plate collector is lower than
When second temperature threshold value, temperature sensor sends temperature signal to controller；
S3, controller receive the temperature signal that temperature sensor is sent, and controller control system opens solar energy water source heat
Loop mode operation is pumped, the first valve is opened and the second valve simultaneously closes off third valve and the 4th valve, and start
Circulating pump, the second thermal-arrest pipeline absorb solar radiation heat and are transferred to preheating water tank, and preheating water tank and the second evaporator carry out heat
After exchange, solar energy water resource heat pump promotes low-grade energy by refrigerant to meet the hot water temperature of hot water storage tank and require.
Preferably, the first temperature threshold is 75 degrees Celsius, and second temperature threshold value is 20 degrees Celsius.
When the system is operated, for loop circuit heat pipe mode, refrigerant absorbs heat evaporation in PV/LHP the first thermal-collecting tube group, warp
Heat release is condensed in condenser 16 after vapor uptake line 3, promotes the water temperature of hot water storage tank 17, then refrigerant is through liquid down-comer
Road 4 flow back into PV/LHP the first thermal-collecting tube group and completes a circulation；For solar energy water source heat pump loop, the second thermal-collecting tube group is inhaled
After receiving solar radiant heat, heat transfer to preheating water tank 2, the water source temperature of solar energy water resource heat pump is improved with this, is preheated
Water flows back to preheating water pipe by circulating pump 6 again, and refrigerant absorbs heat in the second evaporator 15 and evaporates after the compression of compressor 13 cold
It condenses heat release in condenser 16, improves the temperature of water in hot water storage tank 17, last refrigerant flows back to the by 14 reducing pressure by regulating flow of throttle valve
Two evaporators 15 complete a circulation.Under summer operating mode, when temperature sensor 8 monitors that the operating temperature of collection hot vaporizer is greater than
When equal to 75 DEG C, system is converted to solar energy Water Source Heat Pump Pattern, i.e. temperature sensor 8 is transmitted to PLC control for signal is controlled
Device 7, the first valve 9 of control, the second valve 10 open third valve 11, the 4th valve 12 simultaneously and close, and start circulating pump
6, at this point, loop circuit heat pipe stops working, solar energy Water Source Heat Pump Pattern is opened, and preheating water pipe absorbs solar radiant heat and then transmits
To preheating water tank 2, preheating water tank and the second evaporator 15 carry out heat exchange, and last solar energy water resource heat pump is promoted by refrigerant
Low-grade energy requires to meet the hot water temperature of hot water storage tank 17.The switching of both of which not only reduces PV/LHP collection hot vaporizer
Operating temperature improve photoelectric efficiency, and increases the water temperature of the second evaporator of solar energy water resource heat pump, raising photo-thermal efficiency.
Under winter condition, when temperature sensor 8 monitors that collection 1 operating temperature of hot vaporizer is less than or equal to 20 DEG C, system
Solar energy Water Source Heat Pump Pattern is converted to, i.e. temperature sensor 8 is transmitted to PLC controller 7 for signal is controlled, and controls the first valve
9, the second valve 10 opens third valve 11, the 4th valve 12 simultaneously and closes, and start circulating pump 6, at this point, preheating water pipe is too
Positive energy radiant heat, is then passed to preheating water tank 2, and preheating water tank and the second evaporator 15 carry out heat exchange, last solar energy water
Source heat pump promotes low-grade energy by refrigerant to meet the hot water temperature of hot water storage tank 17 and require.
Compared with prior art, the invention has the following advantages:
The present invention reduces the operating temperature of PV/LHP collection hot vaporizer in summer, improves loop circuit heat pipe loop start in winter
Later, the unfavorable operating condition such as more early out of service, system operation has certain adaptability to changes, and solar energy composite conversion can be improved
Rate.
Finally, it should be noted that above-described embodiments are merely to illustrate the technical scheme, rather than to it
Limitation；Although the present invention is described in detail referring to the foregoing embodiments, those skilled in the art should understand that:
It can still modify to technical solution documented by previous embodiment, or to part of or all technical features into
Row equivalent replacement；And these modifications or substitutions, it does not separate the essence of the corresponding technical solution various embodiments of the present invention technical side
The range of case.
Claims (10)
1. a kind of photovoltaic-loop hot-water heating system, it is characterised in that: it includes collection hot vaporizer, preheating water tank, control
Device, the second evaporator, condenser and hot water storage tank, the condenser are arranged inside the hot water storage tank, and described second steams
Device is sent out to be arranged inside the preheating water tank,
The collection hot vaporizer includes the first thermal-collecting tube group, the second thermal-collecting tube group and flat plate collector, second thermal-collecting tube
Group is set in the outside of the first thermal-collecting tube group, and the first thermal-collecting tube group and the second thermal-collecting tube group are fixed on by pressing technology
The top of the flat plate collector,
It is provided with vapor uptake road and liquid down-comer road between the first thermal-collecting tube group and the condenser, described
The first pipeline and the second pipeline, second evaporator and the condensation are provided between two thermal-collecting tube groups and the preheating water tank
It is provided with third pipeline and the 4th pipeline between device, the first valve is provided on first pipeline, is set on second pipeline
It is equipped with the second valve and circulating pump, the vapor uptake road is provided with third valve, and the liquid down-comer road is set
It is equipped with the 4th valve, the collection hot vaporizer is internally provided with temperature sensor, the temperature sensor, the first valve, second
Valve, third valve, the 4th valve and circulating pump connect with the controller communication respectively and are controlled by the controller,
Loop circuit heat pipe, the second thermal-collecting tube group and the preheating are formed between the first thermal-collecting tube group and the hot water storage tank
Solar energy water source heat pump loop is formed between water tank, the temperature sensor is internally provided with the first temperature threshold and the second temperature
Threshold value is spent, when the temperature for the collection hot vaporizer that the temperature sensor monitors lower than the first temperature threshold or is higher than second temperature
When threshold value, system is with loop circuit heat pipe mode operation；When the temperature for the collection hot vaporizer that the temperature sensor monitors is higher than the
One temperature threshold or when being lower than second temperature threshold value, the controller control system opens solar energy water source heat pump loop mode fortune
It goes to regulate and control the hot water temperature of hot water storage tank.
2. photovoltaic according to claim 1-loop hot-water heating system, it is characterised in that: the first thermal-collecting tube group
For the first evaporator of loop circuit heat pipe operational mode.
3. photovoltaic according to claim 2-loop hot-water heating system, it is characterised in that: the flat plate collector is
Photovoltaic flat plate collector, the flat plate collector by sunlight shadow surface to shady face successively include tempered glass cover plate,
Air layer, TPT layers transparent, the first EVE glue-line, photovoltaic cell, TPT layers of black, the 2nd EVE glue-line, heat absorption aluminum layer and guarantor
Warm layer, the temperature sensor, the first thermal-collecting tube group and the second thermal-collecting tube group are arranged on the heat absorption aluminum layer.
4. photovoltaic according to claim 1-loop hot-water heating system, it is characterised in that: the third piping connection
Second evaporator and the vapor uptake road are provided with compressor, the 4th piping connection on the third pipeline
Second evaporator and the liquid down-comer road are provided with throttle valve on the 4th pipeline.
5. photovoltaic according to claim 1-loop hot-water heating system, it is characterised in that: the first thermal-collecting tube group
And second thermal-collecting tube group be solar energy heat collection pipe group.
6. photovoltaic according to claim 1-loop hot-water heating system, it is characterised in that: when the temperature sensor
The temperature of the collection hot vaporizer monitored is higher than the first temperature threshold or when lower than second temperature threshold value, and the controller opens the
One valve and the second valve simultaneously close off third valve and the 4th valve, and start circulating pump, and the second thermal-arrest pipeline is inhaled
It receives solar radiation heat and is transferred to preheating water tank, after preheating water tank and the second evaporator carry out heat exchange, solar energy water resource heat pump
Low-grade energy is promoted by refrigerant to meet the hot water temperature of hot water storage tank and require.
7. photovoltaic according to claim 1-loop hot-water heating system, it is characterised in that: first temperature threshold
It is 75 degrees Celsius, the second temperature threshold value is 20 degrees Celsius.
8. photovoltaic according to claim 1-loop hot-water heating system, it is characterised in that: the second thermal-collecting tube group
And the first thermal-collecting tube group be disposed as it is U-shaped.
9. a kind of control method that photovoltaic according to claim 1-loop hot-water heating system is run comprising
Following steps:
Temperature inside S1, temperature sensor monitoring flat plate collector, when the temperature for the collection hot vaporizer that temperature sensor monitors
Degree is lower than the first temperature threshold or when being higher than second temperature threshold value, and system is with loop circuit heat pipe mode normal operation；
S2, the temperature inside flat plate collector are higher than the temperature inside the first temperature threshold or flat plate collector and are lower than second
When temperature threshold, temperature sensor sends temperature signal to controller；
S3, controller receive the temperature signal that the temperature sensor is sent, and controller control system opens solar energy water source heat
Loop mode operation is pumped, the first valve is opened and the second valve simultaneously closes off third valve and the 4th valve, and start
Circulating pump, the second thermal-arrest pipeline absorb solar radiation heat and are transferred to preheating water tank, and preheating water tank and the second evaporator carry out heat
After exchange, solar energy water resource heat pump promotes low-grade energy by refrigerant to meet the hot water temperature of hot water storage tank and require.
10. progress control method according to claim 9, it is characterised in that: first temperature threshold is 75 degrees Celsius,
The second temperature threshold value is 20 degrees Celsius.
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| CN201810730835.0A CN109000381B (en) | 2018-07-05 | 2018-07-05 | Solar photovoltaic-loop hot water system and operation control method |
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| CN201810730835.0A CN109000381B (en) | 2018-07-05 | 2018-07-05 | Solar photovoltaic-loop hot water system and operation control method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081496A (en) * | 2019-04-08 | 2019-08-02 | 浙江碳银互联网科技有限公司 | A kind of circulation model of composite air source heat pump system |
| CN110081497A (en) * | 2019-04-08 | 2019-08-02 | 浙江碳银互联网科技有限公司 | A kind of control method of heat pump system |
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| CN107166498A (en) * | 2017-06-15 | 2017-09-15 | 燕山大学 | A kind of loop circuit heat pipe/bis- direct expanding solar heating pump heating system |
| CN206989306U (en) * | 2017-06-15 | 2018-02-09 | 燕山大学 | A kind of loop circuit heat pipe/bis- direct expanding solar heating pump heating system |
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