CN208998357U - A kind of solar water heater defroster based on water circulation method - Google Patents
A kind of solar water heater defroster based on water circulation method Download PDFInfo
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- CN208998357U CN208998357U CN201821473153.8U CN201821473153U CN208998357U CN 208998357 U CN208998357 U CN 208998357U CN 201821473153 U CN201821473153 U CN 201821473153U CN 208998357 U CN208998357 U CN 208998357U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 267
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000001514 detection method Methods 0.000 claims abstract description 17
- 230000005611 electricity Effects 0.000 claims description 11
- 239000003381 stabilizer Substances 0.000 claims description 10
- 230000010354 integration Effects 0.000 claims description 9
- 239000003990 capacitor Substances 0.000 claims description 7
- 238000012544 monitoring process Methods 0.000 claims description 5
- 210000000664 rectum Anatomy 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 2
- 230000002528 anti-freeze Effects 0.000 abstract description 5
- 230000002631 hypothermal effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 4
- 238000004064 recycling Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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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
- 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
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Abstract
The utility model relates to a kind of solar water heater defrosters based on water circulation method, belong to automatic control technology field.The utility model goes out three-way magnetic valve, solar water heater storage water tank, one-in-and-two-out three-way magnetic valve, normal-closed electromagnetic valve A III, normal-closed electromagnetic valve A IV, circulation water tank, water pump, temperature sensing circuit, water level detection circuit, solenoid valve and water pump control circuit including two into one.The utility model realizes the automatic control to water pump M and multiple solenoid valves by the detection to temperature and circulation water storage tank water level, solar water heater is realized based on the antifreeze of water circulation method, solves the problems, such as solar water heater winter frozen block, and the size of circulating water flow in the case of Different hypothermia can be controlled, realize the reasonable utilization of water resource, and pass through the reasonable selection and collocation of solenoid valve and water pump, guarantee to consume least electric energy.
Description
Technical field
The utility model relates to a kind of solar water heater defrosters based on water circulation method, belong to automatic control skill
Art field.
Background technique
Solar water appliance has the advantages that energy conservation and environmental protection, safe ready, deep to be liked by vast urban and rural residents, in cold
Regional solar water heater winter frozen block problem brings inconvenience to user, currently, the antifreezing measures of solar water heater
It mainly include that additional insulating layer, auxiliary heating and evacuation and anti-freezing, the measure of additional insulating layer be easy to cause the wave of thermal insulation material
Take, the measure of heating is assisted to consume a large amount of electric energy and there are problems that Electrical Safety, evacuation and anti-freezing measure requires manual intervention, no
The time and efforts for only consuming people, also will cause the waste of water resource.
Summary of the invention
Technical problem to be solved by the utility model is: the utility model provides a kind of solar energy based on water circulation method
Water heater defroster is realized by the detection to temperature and circulation water storage tank water level to oneself of water pump M and multiple solenoid valves
Dynamic control, realizes solar water heater based on the antifreeze of water circulation method, solves asking for solar water heater winter frozen block
Topic, and can control the size of circulating water flow in the case of Different hypothermia, realize the reasonable utilization of water resource, and by solenoid valve and
The reasonable selection and collocation of water pump guarantee to consume least electric energy.
Technical solutions of the utility model are: a kind of solar water heater defroster based on water circulation method, including two
Go out three-way magnetic valve A I 1, solar water heater storage water tank 2, one-in-and-two-out three-way magnetic valve A II 3, normal-closed electromagnetic valve A into one
III 4, normal-closed electromagnetic valve A IV 5, circulation water tank 6, water pump M7, temperature sensing circuit 8, water level detection circuit 9, solenoid valve and
Water pump control circuit 10；Wherein normal-closed electromagnetic valve A III 4, the latus rectum of normal-closed electromagnetic valve A IV 5 are of different sizes, solenoid valve and water
Pump control circuit 10 includes the relay circuit of NAND gate G1~G5, water pump and solenoid valve；Described two into one go out three-way magnetic valve A
I 1 two water inlets are connect with one end of cold water inlet and water pump M7 respectively, and two into one go out the water outlet of three-way magnetic valve A I 1
Mouth, solar water heater storage water tank 2, one-in-and-two-out three-way magnetic valve A II 3 water inlet be sequentially connected, one-in-and-two-out three be powered
A water outlet of magnet valve A II 3 connects hot water supply pipe, another water outlet is connected to normal-closed electromagnetic valve A III 4, normal simultaneously
One end of closed form solenoid valve A IV 5, the other end access circulation water tank of normal-closed electromagnetic valve A III 4, normal-closed electromagnetic valve A IV 5
6, circulation water tank 6 is also connected with the other end of cold feed pipe and water pump M7, temperature sensing circuit 8 and water level detection circuit
9 are all connected to solenoid valve and water pump control circuit 10, and temperature sensing circuit 8 is used to detect the temperature in solar water heater storage water tank
Degree, water level detection circuit 9 are used to detect the water level of circulation water tank 6.
The temperature sensing circuit 8 includes single-chip integration both ends temperature-sensitive current source AD590, integrated operational amplifier F, voltage
Comparator F1, F2, voltage-stabiliser tube D1, resistance R2, potentiometer RW1、RW2；Wherein single-chip integration both ends temperature-sensitive current source AD590 is being just
Pole connects+12V power end, and cathode is connected to the non-inverting input terminal of resistance R2 and integrated operational amplifier F simultaneously, and resistance R2's is another
Outer one end ground connection, the inverting input terminal of integrated operational amplifier F are connected with output end, and output end is also connected with voltage comparator
The homophase input of the inverting input terminal of F1 and the non-inverting input terminal of voltage comparator F2, voltage comparator F1 terminates potentiometer RW1's
The homophase input of adjustable side, voltage comparator F2 terminates potentiometer RW2Adjustable side, one end of potentiometer RW1 be connected to+12V electricity
Source, other end be connected to the anode of potentiometer RW2 and voltage-stabiliser tube D1, the cathode ground connection of voltage-stabiliser tube D1, current potential simultaneously
The other end of device RW2 is grounded.
The water level detection circuit 9 includes 555 chips, resistance R1, capacitor C1, C2；The wherein 1 foot ground connection of 555 chips, 6
Foot and 5 feet pass through capacitor C1, C2 respectively and ground terminal connects, and 8 feet, 4 feet are connect with+5V power supply, and 7 feet and 6 feet connect and lead to afterwards together
It crosses resistance R1 to connect with 2 feet, 2 feet are connected with water level monitoring point O, recycle the Bottom ground of water tank 6.
The solenoid valve and water pump control circuit 10 include NAND gate G1, G2, G3, G4, G5, relay J1, J2, J3, J4,
J5, NPN triode N1, N2, N3, N4, N5, resistance R3, R4, R5, R6, R7；Wherein two input terminals of NAND gate G1 connect respectively
Then the output end of voltage comparator F1, F2 in temperature sensing circuit 8, output end be connected to simultaneously two of NOT gate G2 it is defeated
Enter end, the output end of NAND gate G2 is connected to the base stage of triode N3, and the both ends of relay J3 coil respectively connected+12V electricity
The emitter of the collector of source and triode N3, triode N3 is connect by resistance R5 with ground terminal；The wherein NAND gate
Two input terminals of G3 are connected to the output end of voltage comparator F2 simultaneously, and output end is connected to the base stage of triode N4, after
The both ends of electric appliance J4 coil respectively connected the collector of+12V power end and triode N4, and the emitter of triode N4 passes through electricity
Resistance R6 is connect with ground terminal；Wherein two input terminals of the NAND gate G4 respectively connected voltage comparator F1 output end,
3 feet of 555 chips, output end are connected to two input terminals of NOT gate G5 simultaneously, and the output end of NAND gate G5 is connected to three poles
The both ends of the base stage of pipe N1, N5, relay J1 coil respectively connected the collector of+12V power end and triode N1, triode
The emitter of N1 is connect by resistance R3 with ground terminal, and the both ends of relay J5 coil respectively connected+12V power end and three
The emitter of the collector of pole pipe N5, triode N1 is connect by resistance R7 with ground terminal.
The working principle of the utility model is:
The electric current of single-chip integration both ends temperature-sensitive current source AD590 changes with the change of water temperature in solar water heater storage water tank
Become, and then the voltage of integrated operational amplifier F input terminal and output end also changes correspondingly, and voltage increases with the raising of temperature
Greatly, voltage comparator F1 non-inverting input terminal voltage and voltage comparator F2 inverting input terminal voltage are by potentiometer RW1、RW2And pressure stabilizing
Pipe D1 divides to obtain, when integrated operational amplifier F output end voltage is higher than voltage comparator F1 non-inverting input terminal voltage, voltage
Comparator F1 exports low level signal, and voltage comparator F2 exports high level signal, when integrated computation in-phase amplifier F output end
When voltage is higher than voltage comparator F2 inverting input terminal voltage and is lower than voltage comparator F1 non-inverting input terminal voltage, voltage compares
Device F1, F2 export high level signal, when integrated operational amplifier F output end voltage is lower than voltage comparator F1 non-inverting input terminal electricity
When pressure, voltage comparator F1 exports high level signal, and voltage comparator F2 exports low level signal；When water level is lower than water level detecting
When point, 2 feet of 555 chips are vacantly high level, and 3 feet export low level signal, when water level is higher than water level detecting point, 555 cores
The 2 feet ground connection of piece is low level, and 3 feet export high level signal；The height of voltage comparator F1, F2 output end, 555 chip, 3 foot
Level signal controls the conducting situation of triode N1, N2, N3, N4, N5 after NAND gate G1, G2, G3, G4, G5, and then passes through
Relay J1, J2, J3, J4, J5 control two into one and go out three-way magnetic valve A I, one-in-and-two-out three-way magnetic valve A II, closed type electricity
The working condition of magnet valve A III, A IV, water pump M.
As shown in Figure 1, when temperature is higher do not need water circulation it is antifreeze when, two into one go out three-way magnetic valve A I power off,
Water inletIt closes, water inletLead to water outlet, the power-off of one-in-and-two-out three-way magnetic valve A II, water outletIt closes, into
The mouth of a riverLead to water outlet, normal-closed electromagnetic valve A III power off, be not turned on, normal-closed electromagnetic valve A IV power off, be not turned on, water pump
M does not work；
It, can lesser water flow reach antifreezing effect and circulation water storage tank water level is lower than by recycling when temperature is lower than certain value
When level measuring point, two into one, which go out three-way magnetic valve A I, is powered off, water inletIt closes, water inletLead to water outlet, one
Go out three-way magnetic valve A II into two to be powered, water outletIt closes, water inletLead to water outlet, normal-closed electromagnetic valve A III is logical
Electricity, conducting, normal-closed electromagnetic valve A IV are powered off, are not turned on, water pump M does not work；When circulation water storage tank water level rises to level measuring
When point and its above position, two into one, which go out three-way magnetic valve A I, is powered, water inletIt closes, water inletLead to water outlet
, the energization of one-in-and-two-out three-way magnetic valve A II, water outletIt closes, water inletLead to water outlet, normal-closed electromagnetic valve A
III is powered, and conducting, normal-closed electromagnetic valve A IV is powered off, and is not turned on, water pump M work；
When temperature is especially low, need that biggish water flow can be only achieved antifreezing effect and circulation water storage tank water level is low by recycling
When level measuring point, two into one, which go out three-way magnetic valve A I, is powered off, water inletIt closes, water inletLead to water outlet,
One-in-and-two-out three-way magnetic valve A II is powered, water outletIt closes, water inletLead to water outlet, normal-closed electromagnetic valve A III
Power-off, is not turned on, and triode N5 conducting, normal-closed electromagnetic valve A IV is powered, and conducting, water pump M does not work；When circulation water tank water
When position rises to level measuring point and its above position, two into one, which go out three-way magnetic valve A I, is powered, water inletIt closes, water inlet
MouthfulLead to water outlet, the energization of one-in-and-two-out three-way magnetic valve A II, water outletIt closes, water inletLead to water outlet, normal-closed electromagnetic valve A III power off, be not turned on, NAND gate G3 export high level signal, triode N5 conducting, closed type electromagnetism
Valve A IV is powered, conducting, water pump M work.
The beneficial effects of the utility model are: the utility model is by the detection to temperature and circulation water storage tank water level come real
Now to the automatic control of water pump M and multiple solenoid valves, solar water heater is realized based on the antifreeze of water circulation method, is solved
The problem of solar water heater winter frozen block, and the size of circulating water flow in the case of Different hypothermia can be controlled, realize water resource
Reasonable utilization guarantee to consume least electric energy and by the reasonable selection and collocation of solenoid valve and water pump.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the circuit diagram of the utility model.
Each label in figure: 1- bis- goes out three-way magnetic valve A I, 2- solar water heater storage water tank, 3- one-in-and-two-out three into one
Three-way electromagnetic valve A II, 4- normal-closed electromagnetic valve A III, 5- normal-closed electromagnetic valve A IV, 6- recycle water tank, the inspection of 7- water pump M, 8- temperature
Slowdown monitoring circuit, 9- water level detection circuit, 10- solenoid valve and water pump control circuit, AD590- single-chip integration both ends temperature-sensitive current source, F-
Integrated operational amplifier, F1~F2- voltage comparator, D1- voltage-stabiliser tube, G1~G5- NAND gate, J1~J5- relay, R1~
R7- resistance, RW1~RW2- potentiometer, C1~C2- capacitor, N1~N5-NPN triode.
Specific embodiment
Utility model will be further explained below with reference to the attached drawings and specific embodiments.
Embodiment 1: as shown in Figs. 1-2, a kind of solar water heater defroster based on water circulation method, including two
Go out three-way magnetic valve A I 1, solar water heater storage water tank 2, one-in-and-two-out three-way magnetic valve A II 3, normal-closed electromagnetic valve A into one
III 4, normal-closed electromagnetic valve A IV 5, circulation water tank 6, water pump M7, temperature sensing circuit 8, water level detection circuit 9, solenoid valve and
Water pump control circuit 10；Wherein normal-closed electromagnetic valve A III 4, the latus rectum of normal-closed electromagnetic valve A IV 5 are of different sizes, solenoid valve and water
Pump control circuit 10 includes the relay circuit of NAND gate G1~G5, water pump and solenoid valve；Described two into one go out three-way magnetic valve A
I 1 two water inlets are connect with one end of cold water inlet and water pump M7 respectively, and two into one go out the water outlet of three-way magnetic valve A I 1
Mouth, solar water heater storage water tank 2, one-in-and-two-out three-way magnetic valve A II 3 water inlet be sequentially connected, one-in-and-two-out three be powered
A water outlet of magnet valve A II 3 connects hot water supply pipe, another water outlet is connected to normal-closed electromagnetic valve A III 4, normal simultaneously
One end of closed form solenoid valve A IV 5, the other end access circulation water tank of normal-closed electromagnetic valve A III 4, normal-closed electromagnetic valve A IV 5
6, circulation water tank 6 is also connected with the other end of cold feed pipe and water pump M7, temperature sensing circuit 8 and water level detection circuit
9 are all connected to solenoid valve and water pump control circuit 10, and temperature sensing circuit 8 is used to detect the temperature in solar water heater storage water tank
Degree, water level detection circuit 9 are used to detect the water level of circulation water tank 6.
Further, the temperature sensing circuit 8 is put including single-chip integration both ends temperature-sensitive current source AD590, integrated computation
Big device F, voltage comparator F1, F2, voltage-stabiliser tube D1, resistance R2, potentiometer RW1、RW2；Wherein single-chip integration both ends temperature-sensitive current source
The anode of AD590 connects+12V power end, and cathode is connected to the non-inverting input terminal of resistance R2 and integrated operational amplifier F simultaneously,
The other end of resistance R2 is grounded, and the inverting input terminal of integrated operational amplifier F is connected with output end, and output end is also connected with
The inverting input terminal of voltage comparator F1 and the non-inverting input terminal of voltage comparator F2, the homophase input termination of voltage comparator F1
Potentiometer RW1Adjustable side, the homophase input of voltage comparator F2 terminates potentiometer RW2Adjustable side, one end of potentiometer RW1
Be connected to+12V power end, other end be connected to the anode of potentiometer RW2 and voltage-stabiliser tube D1 simultaneously, voltage-stabiliser tube D1's is negative
Pole ground connection, the other end ground connection of potentiometer RW2.
Further, the water level detection circuit 9 includes 555 chips, resistance R1, capacitor C1, C2；Wherein the 1 of 555 chips
Foot ground connection, 6 feet and 5 feet pass through capacitor C1, C2 respectively and ground terminal connects, and 8 feet, 4 feet are connect with+5V power supply, and 7 feet and 6 feet connect
It is connect afterwards by resistance R1 with 2 feet together, 2 feet are connected with water level monitoring point O, recycle the Bottom ground of water tank 6.
Further, the solenoid valve and water pump control circuit 10 include NAND gate G1, G2, G3, G4, G5, relay J1,
J2, J3, J4, J5, NPN triode N1, N2, N3, N4, N5, resistance R3, R4, R5, R6, R7；Wherein two inputs of NAND gate G1
End respectively connected the output end of voltage comparator F1, F2 in temperature sensing circuit 8, and output end is connected to NOT gate G2 simultaneously
Two input terminals, the output end of NAND gate G2 is connected to the base stage of triode N3, and the both ends of relay J3 coil are separately connected
The collector of+12V power end and triode N3, the emitter of triode N3 connect by resistance R5 with ground terminal；Wherein institute
It states two input terminals of NAND gate G3 while being connected to the output end of voltage comparator F2, output end is connected to triode N4's
The both ends of base stage, relay J4 coil respectively connected the collector of+12V power end and triode N4, the transmitting of triode N4
Pole is connect by resistance R6 with ground terminal；Wherein two input terminals of the NAND gate G4 respectively connected voltage comparator F1's
3 feet of output end, 555 chips, output end are connected to two input terminals of NOT gate G5, the output end connection of NAND gate G5 simultaneously
The base stage of triode N1, N5, the both ends of relay J1 coil respectively connected the collector of+12V power end and triode N1,
The emitter of triode N1 is connect by resistance R3 with ground terminal, and the both ends of relay J5 coil respectively connected+12V power supply
The emitter of the collector at end and triode N5, triode N1 is connect by resistance R7 with ground terminal.
The working principle of the utility model is:
The electric current of single-chip integration both ends temperature-sensitive current source AD590 changes with the change of water temperature in solar water heater storage water tank
Become, and then the voltage of integrated operational amplifier F input terminal and output end also changes correspondingly, and voltage increases with the raising of temperature
Greatly, voltage comparator F1 non-inverting input terminal voltage and voltage comparator F2 inverting input terminal voltage are by potentiometer RW1、RW2And pressure stabilizing
Pipe D1 divides to obtain, when integrated operational amplifier F output end voltage is higher than voltage comparator F1 non-inverting input terminal voltage, voltage
Comparator F1 exports low level signal, and voltage comparator F2 exports high level signal, when integrated computation in-phase amplifier F output end
When voltage is higher than voltage comparator F2 inverting input terminal voltage and is lower than voltage comparator F1 non-inverting input terminal voltage, voltage compares
Device F1, F2 export high level signal, when integrated operational amplifier F output end voltage is lower than voltage comparator F1 non-inverting input terminal electricity
When pressure, voltage comparator F1 exports high level signal, and voltage comparator F2 exports low level signal；When water level is lower than water level detecting
When point, 2 feet of 555 chips are vacantly high level, and 3 feet export low level signal, when water level is higher than water level detecting point, 555 cores
The 2 feet ground connection of piece is low level, and 3 feet export high level signal；The height of voltage comparator F1, F2 output end, 555 chip, 3 foot
Level signal controls the conducting situation of triode N1, N2, N3, N4, N5 after NAND gate G1, G2, G3, G4, G5, and then passes through
Relay J1, J2, J3, J4, J5 control two into one and go out three-way magnetic valve A I, one-in-and-two-out three-way magnetic valve A II, closed type electricity
The working condition of magnet valve A III, A IV, water pump M.
As shown in Figure 1, when temperature is higher do not need water circulation it is antifreeze when, two into one go out three-way magnetic valve A I power off,
Water inletIt closes, water inletLead to water outlet, the power-off of one-in-and-two-out three-way magnetic valve A II, water outletIt closes, into
The mouth of a riverLead to water outlet, normal-closed electromagnetic valve A III power off, be not turned on, normal-closed electromagnetic valve A IV power off, be not turned on, water pump
M does not work；
It, can lesser water flow reach antifreezing effect and circulation water storage tank water level is lower than by recycling when temperature is lower than certain value
When level measuring point, two into one, which go out three-way magnetic valve A I, is powered off, water inletIt closes, water inletLead to water outlet, one
Go out three-way magnetic valve A II into two to be powered, water outletIt closes, water inletLead to water outlet, normal-closed electromagnetic valve A III is logical
Electricity, conducting, normal-closed electromagnetic valve A IV are powered off, are not turned on, water pump M does not work；When circulation water storage tank water level rises to level measuring
When point and its above position, two into one, which go out three-way magnetic valve A I, is powered, water inletIt closes, water inletLead to water outlet
, the energization of one-in-and-two-out three-way magnetic valve A II, water outletIt closes, water inletLead to water outlet, normal-closed electromagnetic valve A
III is powered, and conducting, normal-closed electromagnetic valve A IV is powered off, and is not turned on, water pump M work；
When temperature is especially low, need that biggish water flow can be only achieved antifreezing effect and circulation water storage tank water level is low by recycling
When level measuring point, two into one, which go out three-way magnetic valve A I, is powered off, water inletIt closes, water inletLead to water outlet,
One-in-and-two-out three-way magnetic valve A II is powered, water outletIt closes, water inletLead to water outlet, normal-closed electromagnetic valve A III
Power-off, is not turned on, and triode N5 conducting, normal-closed electromagnetic valve A IV is powered, and conducting, water pump M does not work；When circulation water tank water
When position rises to level measuring point and its above position, two into one, which go out three-way magnetic valve A I, is powered, water inletIt closes, water inlet
MouthfulLead to water outlet, the energization of one-in-and-two-out three-way magnetic valve A II, water outletIt closes, water inletLead to water outlet, normal-closed electromagnetic valve A III power off, be not turned on, NAND gate G3 export high level signal, triode N5 conducting, closed type electromagnetism
Valve A IV is powered, conducting, water pump M work.
Specific embodiment of the utility model is explained in detail above in conjunction with attached drawing, but the utility model and unlimited
In above-described embodiment, within the knowledge of a person skilled in the art, the utility model can also not departed from
Various changes can be made under the premise of objective.
Claims (4)
1. a kind of solar water heater defroster based on water circulation method, it is characterised in that: go out three including two into one and be powered
Magnet valve A I (1), solar water heater storage water tank (2), one-in-and-two-out three-way magnetic valve A II (3), normal-closed electromagnetic valve A III (4),
Normal-closed electromagnetic valve A IV (5), circulation water tank (6), water pump M(7), temperature sensing circuit (8), water level detection circuit (9), electricity
Magnet valve and water pump control circuit (10)；Wherein normal-closed electromagnetic valve A III (4), normal-closed electromagnetic valve A IV (5) latus rectum size not
Together, solenoid valve and water pump control circuit (10) include the relay circuit of NAND gate G1~G5, water pump and solenoid valve；Described two into
One two water inlets for going out three-way magnetic valve A I (1) are connect with one end of cold water inlet and water pump M(7) respectively, and two into one go out
The water inlet of the water outlet, solar water heater storage water tank (2), one-in-and-two-out three-way magnetic valve A II (3) of three-way magnetic valve A I (1)
Mouth is sequentially connected, and a water outlet of one-in-and-two-out three-way magnetic valve A II (3) connects hot water supply pipe, another water outlet is same
When be connected to one end of normal-closed electromagnetic valve A III (4), normal-closed electromagnetic valve A IV (5), normal-closed electromagnetic valve A III (4), closed type
Other end access circulation water tank (6) of solenoid valve A IV (5), circulation water tank (6) are also connected with cold feed pipe and water pump M
(7) other end, temperature sensing circuit (8) and water level detection circuit (9) are all connected to solenoid valve and water pump control circuit
(10), temperature sensing circuit (8) is used to detect the temperature in solar water heater storage water tank, and water level detection circuit (9) is for examining
Survey the water level of circulation water tank (6).
2. the solar water heater defroster according to claim 1 based on water circulation method, it is characterised in that: described
Temperature sensing circuit (8) include single-chip integration both ends temperature-sensitive current source AD590, integrated operational amplifier F, voltage comparator F1,
F2, voltage-stabiliser tube D1, resistance R2, potentiometer RW1、RW2；Wherein the anode of single-chip integration both ends temperature-sensitive current source AD590 connects+12V electricity
Source, cathode are connected to the non-inverting input terminal of resistance R2 and integrated operational amplifier F simultaneously, and the other end of resistance R2 connects
The inverting input terminal on ground, integrated operational amplifier F is connected with output end, and output end is also connected with the reverse phase of voltage comparator F1
The homophase input of the non-inverting input terminal of input terminal and voltage comparator F2, voltage comparator F1 terminates potentiometer RW1Adjustable side,
The homophase input of voltage comparator F2 terminates potentiometer RW2Adjustable side, one end of potentiometer RW1 is connected to+12V power end,
Other end be connected to the anode of potentiometer RW2 and voltage-stabiliser tube D1 simultaneously, the cathode ground connection of voltage-stabiliser tube D1, potentiometer RW2's
Other end ground connection.
3. the solar water heater defroster according to claim 1 based on water circulation method, it is characterised in that: described
Water level detection circuit (9) includes 555 chips, resistance R1, capacitor C1, C2；The wherein 1 foot ground connection of 555 chips, 6 feet and 5 feet difference
It is connected by capacitor C1, C2 and ground terminal, 8 feet, 4 feet are connect with+5V power supply, and 7 feet and 6 feet connect together afterwards by resistance R1 and 2
Foot connection, 2 feet are connected with water level monitoring point O, recycle the Bottom ground of water tank (6).
4. the solar water heater defroster according to claim 1 based on water circulation method, it is characterised in that: described
Solenoid valve and water pump control circuit (10) include NAND gate G1, G2, G3, G4, G5, tri- pole relay J1, J2, J3, J4, J5, NPN
Pipe N1, N2, N3, N4, N5, resistance R3, R4, R5, R6, R7；Wherein two input terminals of NAND gate G1 respectively connected temperature inspection
The output end of voltage comparator F1, F2 in slowdown monitoring circuit (8), output end are connected to two input terminals of NOT gate G2 simultaneously, with
The output end of NOT gate G2 is connected to the base stage of triode N3, and the both ends of relay J3 coil respectively connected+12V power end and three
The emitter of the collector of pole pipe N3, triode N3 is connect by resistance R5 with ground terminal；Wherein two of the NAND gate G3
Input terminal is connected to the output end of voltage comparator F2 simultaneously, and output end is connected to the base stage of triode N4, relay J4 line
The both ends of circle respectively connected the collector of+12V power end and triode N4, and the emitter of triode N4 passes through resistance R6 and connects
Ground terminal connection；Wherein two input terminals of the NAND gate G4 respectively connected the output end of voltage comparator F1,555 chips
3 feet, output end are connected to two input terminals of NOT gate G5 simultaneously, and the output end of NAND gate G5 is connected to triode N1, N5
The both ends of base stage, relay J1 coil respectively connected the collector of+12V power end and triode N1, the transmitting of triode N1
Pole is connect by resistance R3 with ground terminal, and the both ends of relay J5 coil respectively connected+12V power end and triode N5
The emitter of collector, triode N1 is connect by resistance R7 with ground terminal.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109099604A (en) * | 2018-09-10 | 2018-12-28 | 昆明理工大学 | A kind of solar water heater defroster based on water circulation method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109099604A (en) * | 2018-09-10 | 2018-12-28 | 昆明理工大学 | A kind of solar water heater defroster based on water circulation method |
| CN109099604B (en) * | 2018-09-10 | 2024-01-05 | 昆明理工大学 | Solar water heater anti-freezing device based on water flow circulation method |
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Granted publication date: 20190618 Termination date: 20200910 |