CN110145879A - A kind of solar water heater unfreezing water pipe apparatus and method - Google Patents
A kind of solar water heater unfreezing water pipe apparatus and method Download PDFInfo
- Publication number
- CN110145879A CN110145879A CN201910359191.3A CN201910359191A CN110145879A CN 110145879 A CN110145879 A CN 110145879A CN 201910359191 A CN201910359191 A CN 201910359191A CN 110145879 A CN110145879 A CN 110145879A
- Authority
- CN
- China
- Prior art keywords
- lower conduit
- sensor
- capacitance
- solar
- master controller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 73
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000010438 heat treatment Methods 0.000 claims abstract description 31
- 238000010257 thawing Methods 0.000 claims abstract description 20
- 239000000919 ceramic Substances 0.000 claims abstract description 18
- 230000003750 conditioning effect Effects 0.000 claims description 10
- 230000001681 protective effect Effects 0.000 claims description 8
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 4
- 239000011496 polyurethane foam Substances 0.000 claims description 4
- 230000010355 oscillation Effects 0.000 claims description 3
- 239000011241 protective layer Substances 0.000 claims description 3
- 230000006641 stabilisation Effects 0.000 claims description 2
- 238000011105 stabilization Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S40/00—Safety or protection arrangements of solar heat collectors; Preventing malfunction of solar heat collectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S50/00—Arrangements for controlling solar heat collectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S80/00—Details, accessories or component parts of solar heat collectors not provided for in groups F24S10/00-F24S70/00
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B1/00—Details of electric heating devices
- H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
- H05B1/0202—Switches
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B1/00—Details of electric heating devices
- H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
- H05B1/0227—Applications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
- H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
- H05B3/14—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
- H05B3/141—Conductive ceramics, e.g. metal oxides, metal carbides, barium titanate, ferrites, zirconia, vitrous compounds
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Thermal Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Control Of High-Frequency Heating Circuits (AREA)
Abstract
A kind of solar water heater unfreezing water pipe device, including solar water heater upper and lower conduit, capacitive array sensor, PTC ceramics heating sheet, relay, master controller, it is bonded on the outside of capacitive array sensor and solar energy upper and lower conduit, every one section of placement, one capacitance sensor, PTC ceramics heating sheet is placed below capacitance sensor and is bonded with solar energy upper and lower conduit inside.The control method of above-mentioned thawing apparatus, capacitance type sensor detect the change detection chill point of the water pipe capacitance between capacitance type sensor using RC oscillating circuit, and master controller opens PTC ceramics heating sheet corresponding with chill point and carries out heating defrosting.The device of the invention and method do not need to carry out entire upper and lower conduit heating defrosting, but precisely detect chill point by capacitive array sensor and heat defrosting to it, and defrosting is quick and can be energy saving.
Description
Technical field
The present invention relates to water pipe anti-freezing deforst technique fields, and in particular to a kind of accurate solution of solar water heater water pipe intelligence
Freeze device and method.
Background technique
The green energy resource that solar water heater is developed and used as a kind of solar energy composite is increasingly by country and vast
The attention and welcome of the masses is widely used in city, rural area；But when weather is colder, the sun of household
Can water heater upper and lower conduit be easy freeze, cause the hot water in solar energy that can not flow down unimpeded, cause solar water heater without
Method normal use.Current technology starts outside water pipe generally by detection conduit temperature when conduit temperature is lower than zero degree
The anti-antipriming pipe of heating device freezes, but this scheme always carries out upper and lower conduit when winter makes outdoor temperature is lower than zero degree
Heating will cause waste, while long-term heating can also accelerate the aging of water pipe, and then reduce the service life of water pipe.
Summary of the invention
The purpose of the invention is to provide a kind of solar water heater upper and lower conduit chill points and accurate of capable of accurately detecting
The method and apparatus thawed are heated, is easily frozen with effectively solving the upper and lower conduit of existing solar water heater, leads to solar energy
Water heater can not normal use the problem of.
For achieving the above object, technical solution of the present invention is specific as follows:
A kind of solar water heater water pipe intelligently accurate thawing apparatus, including solar water heater upper and lower conduit, array
Capacitance sensor, PTC ceramics heating sheet, relay, master controller, the input phase of capacitive array sensor and RC oscillating circuit
Even, the output of RC oscillating circuit is connected with signal conditioning circuit input, and the output of signal conditioning circuit and master controller input connect,
Master controller output connect with the input of relay, the output of relay connection ceramic heating flake, capacitive array sensor and
Fitting on the outside of solar energy upper and lower conduit, every one section of placement, one capacitance sensor, PTC ceramics heating sheet is placed on capacitance sensing
It is bonded below device and with solar energy upper and lower conduit inside.
It further, further include upper and lower conduit protective case, upper and lower conduit protective case is wrapped in upper and lower conduit, array type capacity
Sensor and PTC ceramics heating sheet.
Further, the upper and lower conduit protective case is polyurethane foam protective layer.
It further, further include mixed cold and hot water valve and travel switch, mixed cold and hot water valve is connected with solar energy upper and lower conduit, row
Cheng Kaiguan is connected with master controller input, and travel switch is located above mixed cold and hot water valve.
A kind of control method of solar water heater unfreezing water pipe device, comprising the following steps:
S1: judging whether mixed cold and hot water valve is opened by travel switch, if water mixing valve is closed, main controller controls solution
Freeze device and enters suspend mode；If water mixing valve is opened, main controller controls thawing apparatus enters operating mode；
S2: it is different with the capacitive dielectric constant of ice using water, the frost degree in pipe, benefit are perceived by capacitance type sensor
The variation of frequency of oscillation is converted by the variation of the water pipe capacitance between capacitance type sensor with RC oscillating circuit, then passes through signal
Output signal is processed into stabilization signal by conditioning circuit, reads the frequency of output signal by master controller later to judge and determine
Chill point position and frost degree in the water pipe of position；
S3: the chill point detected according to capacitance type sensor, master controller are opened PTC ceramics corresponding with chill point and are added
Backing carries out heating defrosting.
Compared with prior art, beneficial effects of the present invention:
Thawing apparatus of the invention passes through the knot of capacitive array sensor accurately detecting solar water heater upper and lower conduit
Ice position, then heating defrosting is carried out by heating sheet, it realizes accurate monitoring and heating, solves solar water pipe freezed in winter and lead
What is caused cannot use problem, bring convenience to people's lives；
Method of the invention does not need to carry out heating defrosting to entire upper and lower conduit, but passes through capacitive array sensor
Precisely detecting chill point and heat defrosting to it can be effective energy saving, not will cause waste of energy；Defrosting effect is good
And it is not influenced by ambient temperature.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of solar energy upper hose intelligence thawing apparatus of the embodiment of the present invention；
Fig. 2 is a kind of hardware structure diagram of solar energy upper hose intelligence thawing apparatus of the embodiment of the present invention；
In Fig. 1: 1-solar storage water tank, 2-upper and lower conduit protective cases, 3-capacitive array sensors, 4-solar energy
Upper and lower conduit, 5-PTC ceramics heating sheets, 6-mixed cold and hot water valves, 7-travel switches.
Specific embodiment:
Embodiment
As shown in Figure 1, a kind of solar water heater unfreezing water pipe device, including be lauched on solar storage water tank 1, solar energy
Pipe 4, upper and lower conduit protective case 2, capacitive array sensor 3, PTC ceramics heating sheet 5, relay 9, mixed cold and hot water valve 6, stroke
Switch 7, master controller, signal conditioning circuit, Fig. 2 show the whole control flow chart of thawing apparatus.Solar storage water tank 1 is logical
It crosses solar energy upper and lower conduit 4 to connect with mixed cold and hot water valve 6, array type capacity electrode 3 is connected with the input of RC oscillating circuit, RC vibration
It swings circuit output and signal conditioning circuit input connects, the output of signal conditioning circuit and master controller input connect, main control
The output of device and the input of relay connect, and the output of relay connects ceramic heating flake 5.Travel switch 7 and master controller 10
Input connection.It is bonded on the outside of capacitive array sensor 3 and solar energy upper and lower conduit 4, places a capacitor every five centimetres and pass
Sensor, for accurately detecting the state of matter of each location point in one section of water pipe.PTC ceramics heating sheet is put 5 and is set in the capacitor
The lower section of sensor 3 and be bonded on the inside of the solar energy upper and lower conduit 4, the capacitance sensor 3 of each position is right in water pipe
There should be a PTC ceramics heating sheet 5, for realizing the accurate monitoring and heating to each position of upper and lower conduit, be added with improving
Thermal effect reduces energy consumption, and reducing environment influences.Upper and lower conduit protective case 2 is polyurethane foam protective layer, polyurethane foam protection
There are also good waterproof performances while layer is with insulation effect, can preferably protect array type capacity electrode 3 and solar energy
Upper and lower conduit 4.Travel switch 7 is placed above mixed cold and hot water valve 6, for monitoring whether mixed cold and hot water valve 6 is opened, is for judgement
It is no to start automatic control device.
The control method of above-mentioned thawing apparatus is:
(a) firstly, travel switch 7 is for judging whether mixed cold and hot water valve 6 is opened, if water mixing valve 6 is closed, use is represented
Family is not using solar energy system, and in order to reduce energy consumption, whole system enters suspend mode to reach saving purpose at this time；If mixed
Water valve 6 is opened, then illustrates that solar energy system is used in user, then needs to immediately enter working condition, is promoted user and is used friend
Good degree.
(b) by the formula of capacitanceIt is found that being specifically inversely proportional between capacitance and two-plate, with connecing for pole plate
Contacting surface product is directly proportional, and the dielectric constant between two-plate is directly proportional.In the application since ice and water belong to different media, it
There is different dielectric constants just to have different capacitances；Capacitance type sensor 3 can utilize RC oscillating circuit by the change of its capacitance
Change the variation for being converted into frequency of oscillation, then output signal is processed by certain signal conditioning circuit by more stable letter
Number, we are just monitored the freezing state in water pipe to realize by the frequency that master controller reads output signal here.
(c) in order to which the thawing for accelerating ice as far as possible sets a threshold to output signal here using bang-bang control
Value, then allows heating equipment capacity operation beyond threshold value.
(d) array type capacity electrode 3 is made of multiple capacitance sensors, it is possible to accurately navigate to which section knot
Ice, so that it may which targetedly heating is thawed.Electric energy is greatly saved.
It should be noted that being intended merely to further illustrate the contents of the present invention above, but should not be construed as to the present invention
Limitation.Without departing from the spirit and substance of the case in the present invention, it modifies or replaces to made by the method for the present invention, step or condition
It changes, all belongs to the scope of the present invention.
Claims (5)
1. a kind of solar water heater unfreezing water pipe device, which is characterized in that including solar water heater upper and lower conduit, array
Capacitance sensor, PTC ceramics heating sheet, relay, master controller, the input phase of capacitive array sensor and RC oscillating circuit
Even, the output of RC oscillating circuit is connected with signal conditioning circuit input, and the output of signal conditioning circuit and master controller input connect,
Master controller output connect with the input of relay, the output of relay connection ceramic heating flake, capacitive array sensor and
Fitting on the outside of solar energy upper and lower conduit, every one section of placement, one capacitance sensor, PTC ceramics heating sheet is placed on capacitance sensing
It is bonded below device and with solar energy upper and lower conduit inside.
2. a kind of solar water heater unfreezing water pipe device according to claim 1, which is characterized in that be lauched on further including
Protection of pipe set, upper and lower conduit protective case are wrapped in upper and lower conduit, capacitive array sensor and PTC ceramics heating sheet.
3. a kind of solar water heater unfreezing water pipe device according to claim 2, which is characterized in that the upper and lower conduit
Protective case is polyurethane foam protective layer.
4. a kind of solar water heater unfreezing water pipe device according to claim 1, which is characterized in that further include cold and hot mixed
Water valve and travel switch, mixed cold and hot water valve are connected with solar energy upper and lower conduit, and travel switch is connected with master controller input, stroke
Switch is located above mixed cold and hot water valve.
5. a kind of control method of solar water heater unfreezing water pipe device, which comprises the following steps:
S1: judging whether mixed cold and hot water valve is opened by travel switch, if water mixing valve is closed, main controller controls, which are thawed, to be filled
It sets and enters suspend mode；If water mixing valve is opened, main controller controls thawing apparatus enters operating mode；
S2: it is different with the capacitive dielectric constant of ice using water, the frost degree in pipe is perceived by capacitance type sensor, tool utilizes
RC oscillating circuit converts the capacitance variation of capacitance type sensor to the variation of frequency of oscillation, then will by signal conditioning circuit
Output signal is processed into stabilization signal, reads the frequency of output signal by master controller later to judge and position in water pipe
Chill point position and frost degree；
S3: the chill point detected according to capacitance type sensor, master controller open PTC ceramics heating sheet corresponding with chill point
Carry out heating defrosting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910359191.3A CN110145879A (en) | 2019-04-30 | 2019-04-30 | A kind of solar water heater unfreezing water pipe apparatus and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910359191.3A CN110145879A (en) | 2019-04-30 | 2019-04-30 | A kind of solar water heater unfreezing water pipe apparatus and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110145879A true CN110145879A (en) | 2019-08-20 |
Family
ID=67593971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910359191.3A Pending CN110145879A (en) | 2019-04-30 | 2019-04-30 | A kind of solar water heater unfreezing water pipe apparatus and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110145879A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114623601A (en) * | 2022-03-14 | 2022-06-14 | 江阴瑞兴塑料玻璃制品有限公司 | Self-adaptive inner container ice melting operation platform and method |
| CN115325765A (en) * | 2021-05-10 | 2022-11-11 | 青岛海尔电冰箱有限公司 | Control method and control device of ice making device and refrigerator |
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| JP2001272101A (en) * | 2000-03-28 | 2001-10-05 | Sekisui Chem Co Ltd | Anti-freezing structure for connection pipe to hot water heater |
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2019
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| CN203068815U (en) * | 2013-01-17 | 2013-07-17 | 鲁黎明 | Automatic constant-temperature control solar water heater |
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| Title |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115325765A (en) * | 2021-05-10 | 2022-11-11 | 青岛海尔电冰箱有限公司 | Control method and control device of ice making device and refrigerator |
| WO2022237725A1 (en) * | 2021-05-10 | 2022-11-17 | 青岛海尔电冰箱有限公司 | Ice making device control method and control apparatus, and refrigerator |
| CN115325765B (en) * | 2021-05-10 | 2023-11-07 | 青岛海尔电冰箱有限公司 | Control method and control device of ice making device and refrigerator |
| CN114623601A (en) * | 2022-03-14 | 2022-06-14 | 江阴瑞兴塑料玻璃制品有限公司 | Self-adaptive inner container ice melting operation platform and method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20190820 |