CN103277924A - System and method for intelligent hot water circulation control and domestic solar water heater - Google Patents

System and method for intelligent hot water circulation control and domestic solar water heater Download PDF

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CN103277924A
CN103277924A CN2013102161997A CN201310216199A CN103277924A CN 103277924 A CN103277924 A CN 103277924A CN 2013102161997 A CN2013102161997 A CN 2013102161997A CN 201310216199 A CN201310216199 A CN 201310216199A CN 103277924 A CN103277924 A CN 103277924A
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water
time
main controller
magnetic valve
water pump
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CN103277924B (en
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李朝勇
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/40Solar thermal energy, e.g. solar towers

Abstract

The invention discloses a system and a method for intelligent hot water circulation control and a domestic solar water heater. The system comprises an outlet water circulation pipeline connected with a water outlet of the solar water heater, a return water circulation pipeline connected with a water inlet of the solar water heater and a main controller. The outlet water circulation pipeline is provided with a flow sensor and a temperature sensor, and the flow sensor and the temperature sensor are used for sending water flow signals to the main controller when water flows in the pipeline. The return water circulation pipeline is provided with a water pump. The outlet water circulation pipeline is connected with the return water circulation pipeline through an electromagnetic valve. The main controller is connected with the flow sensor, the temperature sensor, the electromagnetic valve and the water pump, and is provided with a temperature control module and a time control module. The system, the method and the domestic solar water heater are wide in application range, high in practicality and efficiency, energy-saving and environment-friendly, users living in high-rise buildings and low-rise buildings can use solar water heaters, and hot water can be used conveniently at any time.

Description

A kind of hot water intelligent circulation control system, method and domestic solar water heater
Technical field
The present invention relates to a kind of hot water intelligent circulation control system, method and domestic solar water heater.
Background technology
The domestic solar water heater satisfies a kind of common equipment that solar energy is converted to heat energy that the hot water in people's life uses, there are the following problems for prior solar water heater: longer owing to pipeline apart from the floor that roof is far away, therefore for the first time need emit more cold water during water, poor for applicability, can't satisfy low floor user's demand, reduce domestic solar water heater's range of application, be unfavorable for extensive utilization, waste water resource and the energy of solar energy.
Summary of the invention
The present invention is directed to the proposition of above problem, and develop a kind of applied range, applicability is strong, efficient is high, hot water intelligent circulation control system, method and the domestic solar water heater of energy-conserving and environment-protective.
Technological means of the present invention is as follows:
A kind of hot water intelligent circulation control system comprises: what connect the solar water heater delivery port goes out water circulation pipe and the backwater circulation pipeline that is connected the solar water heater inlet mouth; Describedly go out water circulation pipe and be provided with and when having current in the pipeline, send water-flow signal to flow sensor and the temperature sensor of main controller; Described backwater circulation pipeline is provided with water pump; Describedly go out water circulation pipe and be connected by magnetic valve with the backwater circulation pipeline;
Also comprise connection traffic sensor respectively, temperature sensor, magnetic valve and water pump, has the temperature control modules of setting the leaving water temperature threshold value, also have working time and the dwell time of setting magnetic valve and water pump, according to the control signal of main controller work at present time of magnetic valve and water pump and dwell time are carried out the time control module that timing and timing time make zero, be used for being lower than according to the leaving water temperature that temperature sensor detects the judged result control solenoid closure of the leaving water temperature threshold value of temperature control modules setting, starting mode of pump and time control module begin the working time timing to magnetic valve and water pump, in time control module the working time of magnetic valve and water pump is carried out in the process of timing, be higher than the judged result control magnetic valve disconnection of the leaving water temperature threshold value that equals the temperature control modules setting according to the leaving water temperature of temperature sensor detection, water pump stops to make zero with the timing time of time control module, the magnetic valve that equals to set when the timing duration of time control module and pump working are controlled magnetic valve and are disconnected during the time, water pump stops to begin the dwell time of magnetic valve and water pump is carried out timing with time control module, in time control module the dwell time of magnetic valve and water pump is carried out in the process of timing, the timing time that the leaving water temperature that detects according to temperature sensor is higher than the judged result control time control module that equals the leaving water temperature threshold value that temperature control modules sets makes zero, the main controller that the timing time of control time control module makes zero when the magnetic valve that equals to set when the timing duration of time control module and the dwell time of water pump;
In addition, also comprise the water pipe that connects the backwater circulation pipeline; Described water pipe is provided with water compensating valve and electro connecting pressure gauge;
In addition, also comprise connecting water circulation pipe, be used for a plurality of water pipelines of output hot water; Each described water pipeline is provided with a hot water valve;
Further, be covered with heating tape on the outer wall that goes out water circulation pipe and backwater circulation pipeline of outdoor section;
Further, time control module also is used for setting the duration of heat of heating tape and stopping the duration of heat, main controller is according to the heating tape duration of heat that sets and stop the duration of heat and control heating tape beginning and stop heating, and stops to heat when going out water circulation pipe and backwater circulation pipeline work time control heating tape processed;
Further, described electro connecting pressure gauge also has the function of the setting pressure upper limit and low pressure limit; After water compensating valve was opened, the water pipe pressure parameter that detects when this electro connecting pressure gauge was during more than or equal to the upper pressure limit of setting or smaller or equal to the low pressure limit set, and main controller control water pump stops; The water pipe pressure parameter that detects when this electro connecting pressure gauge is during greater than the low pressure limit of setting and less than the upper pressure limit set, main controller control starting mode of pump; Main controller is controlled out that water circulation pipe quits work and is controlled out water circulation pipe and continue the certain hour that quits work after water compensating valve is closed again when water compensating valve is opened.
A kind of hot water intelligent circulation control method comprises the steps:
S1: after the beginning, flow sensor sends water-flow signal to main controller, carries out S2;
S2: temperature sensor detects coolant-temperature gage, carries out S3;
S3: main controller judges that whether the leaving water temperature that temperature sensor detects is lower than the leaving water temperature threshold value that temperature control modules is set, and is then to carry out S4, otherwise finishes;
S4: main controller control solenoid closure, starting mode of pump and time control module begin the working time of magnetic valve and water pump is carried out timing, carry out S5;
S5: pump working, carry out S6;
S6: main controller judges whether the leaving water temperature that temperature sensor detects is higher than the leaving water temperature threshold value that equals the temperature control modules setting, is then to carry out S12, otherwise carries out S7;
S7: the magnetic valve whether the timing duration of main controller judgement time control module equals to set and the working time of water pump are then to carry out S8, otherwise carry out S5;
S8: main controller control magnetic valve disconnects, water pump stops and time control module begins the dwell time of magnetic valve and water pump is carried out timing, carries out S9;
S9: main controller judges whether the leaving water temperature that temperature sensor detects is higher than the leaving water temperature threshold value that equals the temperature control modules setting, is then to carry out S11, otherwise carries out S10;
S10: the magnetic valve whether the timing duration of main controller judgement time control module equals to set and the dwell time of water pump are then to carry out S11, otherwise carry out S9;
S11: the main controller control time timing time of control module makes zero, and finishes;
S12: main controller control magnetic valve disconnects, water pump stops and the timing time of time control module makes zero, and finishes.
Further, before step S1, also have following steps:
Temperature control modules is set the leaving water temperature threshold value, and time control module is set working time and the dwell time of magnetic valve and water pump.
A kind of domestic solar water heater comprises any described hot water intelligent circulation control system.
Owing to adopted technique scheme, a kind of hot water intelligent circulation control system provided by the invention, method and domestic solar water heater, by at the water circulation pipe that goes out that connects the solar water heater delivery port flow sensor and temperature sensor being set, be provided with water pump at the backwater circulation pipeline that connects the solar water heater inlet mouth, and going out water circulation pipe is connected by magnetic valve with the backwater circulation pipeline, main controller changes the closed and disconnected of controlling magnetic valve according to the water-flow signal of flow sensor transmission and the leaving water temperature of temperature sensor detection, and the startup of water pump and stopping, when the leaving water temperature of temperature sensor detection is lower than the temperature threshold of setting, the closed electromagnetic valve, then go out water circulation pipe and backwater circulation pipeline and constitute closed circuit, water pump constantly will be transported to the water inlet of solar water heater from the solar water heater delivery port by the backwater circulation pipeline via the water that goes out the water circulation pipe outflow, realize heating again, and main controller of the present invention also has the time control module of setting water pump and magnetic valve working time and dwell time, when solenoid closure and starting mode of pump, time control module begins the working time of magnetic valve and water pump is carried out timing, in time control module the working time of magnetic valve and water pump is carried out in the process of timing, the leaving water temperature that temperature sensor detects is higher than the temperature threshold that equals to set, and then main controller stops water pump, the timing time that disconnects magnetic valve and time control module makes zero; Finishing when time control module timing is working time of water pump and magnetic valve to have reached the working time that sets and the leaving water temperature that the simultaneous temperature sensor detects is lower than the temperature threshold of setting, then main controller control magnetic valve disconnects, water pump stops to begin the dwell time of magnetic valve and water pump is carried out timing with time control module, prevent hot water cyclesystem and repeated work in the short time because water temperature is low, in time control module the dwell time of magnetic valve and water pump is carried out in the process of timing, the leaving water temperature that temperature sensor detects is higher than the temperature threshold that equals to set, then the timing time of main controller control time control module makes zero, finishing when time control module timing is that the dwell time of water pump and magnetic valve has reached the dwell time that sets and the leaving water temperature that the simultaneous temperature sensor detects is lower than the temperature threshold of setting, then the timing time of main controller control time control module makes zero, the present invention can realize only need emitting when the solar water heater user uses a small amount of cold water just can have hot water to use, what solved that existing domestic solar water heater exists causes during water need emit more cold water the first time apart from roof floor far away because pipeline is long, poor for applicability, and then can't satisfy the problem of low floor user's demand, can realize that not only high floor user can have stable hot water to use, and low floor also can be convenient to use hot water at any time, be convenient to improve range of application and the result of use of solar water heater, conserve water resource and the energy; Be covered with heating tape on the outer wall that goes out water circulation pipe and backwater circulation pipeline of outdoor section in addition, set the heating tape duration of heat and stop the duration of heat by time control module, main controller is according to the heating tape duration of heat that sets and stop the duration of heat and control heating tape beginning and stop heating, the problem that can be easy to freeze at the pipeline of outdoor section in the north of china in winter low temperature environment, and adopting this control mode can keep pipeline to freeze can not superheated, energy savings reduces use cost; Electro connecting pressure gauge also has the function of the setting pressure upper limit and low pressure limit in addition, after water compensating valve is opened, the water pipe pressure parameter that detects when this electro connecting pressure gauge is during more than or equal to the upper pressure limit of setting or smaller or equal to the low pressure limit set, and main controller control water pump stops; The water pipe pressure parameter that detects when this electro connecting pressure gauge is during greater than the low pressure limit of setting and less than the upper pressure limit set, and main controller control starting mode of pump has been realized high and do not have when pressure and stop water pump, startup water pump when hydraulic pressure is low when hydraulic pressure; And main controller is controlled out water circulation pipe and is quit work when water compensating valve is opened, after water compensating valve is closed again, control out water circulation pipe and continue the certain hour that quits work, can guarantee like this to re-use after water in water tank that the solar water appliance has and hot water fully mix, improve the hot water result of use, and applied range of the present invention, applicability is strong, the efficient height, energy-conserving and environment-protective, make the high low layer user of building all can use solar water heater, and can be convenient to use hot water at any time, not only be convenient to produce, and cost is very cheap is suitable for extensive popularization.
Description of drawings
Fig. 1 is the structural representation of system of the present invention;
Fig. 2 is the flow chart of the method for the invention.
Among the figure: 1, solar water heater, 2, heating tape, 3, flow sensor, 4, temperature sensor, 5, go out water circulation pipe, 6, water pump, 7, backwater circulation pipeline, 8, the water pipeline, 9, hot water valve, 10, magnetic valve, 11, electro connecting pressure gauge, 12, water pipe, 13, water compensating valve, 14, time control module, 15, temperature control modules, 16, main controller.
The specific embodiment
A kind of hot water intelligent circulation control system as shown in Figure 1 comprises: what connect solar water heater 1 delivery port goes out water circulation pipe 5 and the backwater circulation pipeline 7 that is connected solar water heater 1 water inlet; Describedly go out water circulation pipe 5 and be provided with and when having current in the pipeline, send water-flow signal to flow sensor 3 and the temperature sensor 4 of main controller 16; Described backwater circulation pipeline 7 is provided with water pump 6; Describedly go out water circulation pipe 5 and be connected by magnetic valve 10 with backwater circulation pipeline 7; Also comprise connection traffic sensor 3 respectively, temperature sensor 4, magnetic valve 10 and water pump 6, has the temperature control modules 15 of setting the leaving water temperature threshold value, also have working time and the dwell time of setting magnetic valve 10 and water pump 6, according to the control signal of main controller work at present time of magnetic valve and water pump and dwell time are carried out the time control module 14 that timing and timing time make zero, be used for being lower than according to the leaving water temperature that temperature sensor 4 detects judged result control magnetic valve 10 closures of the leaving water temperature threshold value of temperature control modules 15 settings, water pump 6 startups and time control module 14 begin the working time timing to magnetic valve 10 and water pump 6, working time at 14 pairs of magnetic valves 10 of time control module and water pump 6 carries out in the process of timing, be higher than judged result control magnetic valve 10 disconnections of the leaving water temperature threshold value that equals temperature control modules 15 settings according to the leaving water temperature of temperature sensor 4 detections, water pump 6 stops to make zero with the timing time of time control module 14, the magnetic valve 10 that equals to set when the timing duration of time control module 14 and water pump are controlled magnetic valve 10 and are disconnected during 6 working times, water pump 6 stops to begin the dwell time of magnetic valve 10 and water pump 6 is carried out timing with time control module 14, dwell time at 14 pairs of magnetic valves 10 of time control module and water pump 6 is carried out in the process of timing, the timing time that the leaving water temperature that detects according to temperature sensor 4 is higher than the judged result control time control module 14 that equals the leaving water temperature threshold value that temperature control modules 15 sets makes zero, the main controller 16 that the timing time of control time control module 14 makes zero when the magnetic valve 10 that equals to set when the timing duration of time control module 14 and the dwell time of water pump 6; In addition, also comprise the water pipe 12 that connects backwater circulation pipeline 7; Described water pipe 12 is provided with water compensating valve 13 and electro connecting pressure gauge 11; Also comprise connecting water circulation pipe 5, be used for a plurality of water pipelines 8 of output hot water; Each described water pipeline 8 is provided with a hot water valve 9; Further, be covered with heating tape 2 on the outer wall that goes out water circulation pipe 5 and backwater circulation pipeline 7 of outdoor section; Time control module 14 also is used for setting the duration of heat of heating tape 2 and stopping the duration of heat, main controller 16 is according to 2 durations of heat of heating tape that set and stop the duration of heat and control heating tape 2 beginnings and stop heating, and control heating tape 2 stops to heat when going out water circulation pipe 5 and 7 work of backwater circulation pipeline; Further, described electro connecting pressure gauge 11 also has the function of the setting pressure upper limit and low pressure limit; After water compensating valve 13 was opened, water pipe 12 pressure parameters that detect when this electro connecting pressure gauge 11 were during more than or equal to the upper pressure limit of setting or smaller or equal to the low pressure limit set, and main controller 16 control water pumps 6 stop; Water pipe 12 pressure parameters that detect when this electro connecting pressure gauge 11 are during greater than the low pressure limit of setting and less than the upper pressure limit set, and main controller 16 control water pumps 6 start; Main controller 16 is controlled out that water circulation pipe 5 quits work and is controlled out water circulation pipe 5 and continue the certain hour that quits work after water compensating valve 13 is closed again when water compensating valve 13 is opened.
A kind of hot water intelligent circulation control method as shown in Figure 2 comprises the steps:
S1: after the beginning, flow sensor 3 sends water-flow signal to main controller 16, carries out S2;
S2: temperature sensor 4 detects coolant-temperature gage, carries out S3;
S3: main controller 16 judges that whether the leaving water temperature that temperature sensor 4 detects is lower than the leaving water temperature threshold value that temperature control modules 15 is set, and is then to carry out S4, otherwise finishes;
S4: main controller 16 control magnetic valves 10 closures, water pump 6 startups and time control module 14 begin the working time of magnetic valve 10 and water pump 6 is carried out timing, carry out S5;
S5: water pump 6 work, carry out S6;
S6: main controller 16 judges whether the leaving water temperature that temperature sensor 4 detects is higher than the leaving water temperature threshold value that equals temperature control modules 15 settings, is then to carry out S12, otherwise carries out S7;
S7: the magnetic valve 10 whether the timing duration of main controller 16 judgement time control modules 14 equals to set and the working time of water pump 6 are then to carry out S8, otherwise carry out S5;
S8: main controller 16 control magnetic valves 10 disconnect, water pump 6 stops and time control module 14 begins the dwell time of magnetic valve 10 and water pump 6 is carried out timing, carries out S9;
S9: main controller 16 judges whether the leaving water temperature that temperature sensor 4 detects is higher than the leaving water temperature threshold value that equals temperature control modules 15 settings, is then to carry out S11, otherwise carries out S10;
S10: the magnetic valve 10 whether the timing duration of main controller 16 judgement time control modules 14 equals to set and the dwell time of water pump 6 are then to carry out S11, otherwise carry out S9;
S11: the timing time of main controller control time control module 14 makes zero, and finishes;
S12: main controller 16 control magnetic valves 10 disconnect, water pump 6 stops and the timing time of time control module 14 makes zero, and finish.
Further, before step S1, also have following steps:
Temperature control modules 15 is set the leaving water temperature threshold value, and time control module 14 is set working time and the dwell time of magnetic valve 10 and water pump 6;
Further, before step S1, also have following steps:
Time control module 14 is set the duration of heat of heating tape 2 and is stopped the duration of heat, the electro connecting pressure gauge 11 setting pressure upper limit and low pressure limits;
In addition, control water pump 6 stopped when described hot water intelligent circulation control method also comprised the steps: water pipe 12 pressure parameters that main controller 16 detects according to electro connecting pressure gauge 11 more than or equal to the upper pressure limit of setting or smaller or equal to the low pressure limit set, water pipe 12 pressure parameters that detect according to electro connecting pressure gauge 11 during greater than the low pressure limit of setting and less than the upper pressure limit set control water pump 6 start, and main controller 16 is controlled out that water circulation pipe 5 quits work and is controlled out water circulation pipe 5 and continue the certain hour that quits work after water compensating valve 13 is closed again when water compensating valve 13 is opened.
A kind of domestic solar water heater comprises any described hot water intelligent circulation control system.
When the present invention uses, the temperature control modules temperature is set the leaving water temperature threshold value according to the highest temperature in different regions, north and south summers and the indoor temperature state in winter, usually the general value of this leaving water temperature threshold value is 25~50 ℃, time control module is set working time and the dwell time of magnetic valve and water pump, this working time is according to the height of floor, pipeline length and water heater temperature's height comprehensive condition is set, general value is 10~300 seconds, this dwell time is according to family population, habits and customs and individual water need be set, general value is 10~60 minutes, before beginning, the user closes hot water valve after opening the hot water valve certain hour, usually opening hot water valve closes hot water valve and gets final product after 1-3 seconds, system starts working, flow sensor detects out the water-flow signal in the water circulation pipe and sends to main controller, temperature sensor detects coolant-temperature gage, when main controller is judged coolant-temperature gage and is lower than the design temperature threshold value, main controller control solenoid closure, starting mode of pump, time control module begins the working time of magnetic valve and water pump is carried out timing simultaneously, the water that pump working will go out in the water circulation pipe constantly is delivered to the solar water heater inlet mouth by the backwater circulation pipeline, realization is to the circulation heating of water, main controller in this process is higher than when equaling the design temperature threshold value if judge coolant-temperature gage, main controller stops magnetic valve and pump working and the timing time of time control module is made zero, and this time control module can be electric timing switch or time-delay relay; If time control module timing end is the working time of magnetic valve and water pump to have reached the working time of setting, and main controller is judged coolant-temperature gage and is lower than the design temperature threshold value, then main controller control magnetic valve disconnection, water pump stop, simultaneously time control module begins the dwell time of magnetic valve and water pump is carried out timing, can prevent the circulatory system of the present invention like this because water temperature is low and repeat work in the short time; Native system is just when needs use hot water, open a hot water valve and get final product work, any time in this system work process, opening or closing hot water valve does not all influence the duty of system, it is to control voluntarily according to initial setting that this system quits work, in addition, for the various duties of better adaptation, the present invention can also cause the situation of the pipeline easy freezing of outdoor section at the north of china in winter low temperature environment, set the heating tape duration of heat and stop the duration of heat by time control module, main controller is according to the heating tape duration of heat that sets and stop the duration of heat and control heating tape beginning and stop heating, the working time of heating tape is set according to north and south winter minimum temperature from different places, for example set heating tape heating and continuous 5 minutes, stopped again heating 30 minutes, periodic duty like this, and stopping heating when going out water circulation pipe and backwater circulation pipeline work time control heating tape processed, namely heating tape stops heating when the water in moisturizing and the pipeline is recycled heating; Adopting this control mode can keep pipeline to freeze can not superheated, and energy savings reduces use cost; Electro connecting pressure gauge of the present invention also has the function of the setting pressure upper limit and low pressure limit, wherein upper pressure limit and low pressure limit are generally set according to story height and loine pressure, after water compensating valve is opened, the water pipe pressure parameter that detects when this electro connecting pressure gauge is during more than or equal to the upper pressure limit of setting or smaller or equal to the low pressure limit set, and main controller control water pump stops; The water pipe pressure parameter that detects when this electro connecting pressure gauge is during greater than the low pressure limit of setting and less than the upper pressure limit set, and main controller control starting mode of pump has been realized high and do not have when pressure and stop water pump, startup water pump when hydraulic pressure is low when hydraulic pressure; And main controller is controlled out water circulation pipe and is quit work when water compensating valve is opened, after water compensating valve is closed again, control out water circulation pipe and continue the certain hour that quits work, each building block that can utilize main controller to control out to arrange on the water circulation pipe quits work and then realizes out that water circulation pipe quits work, the water supplementing method that this dwell time can be set according to protosun, the height of solar water-temperature and individual's water need be set, general value is 1~60 minute, its water in water tank and hot water re-use after fully mixing in the time of can guaranteeing the solar water heater moisturizing, improve the hot water result of use, before the family expenses water heater is installed, can install in advance and assist and set out water circulation pipe, backwater circulation pipeline and related circuit, the present invention can realize that the user only emits a small amount of cold water when using various pot-type boiler, be generally 100~200 milliliters, just can there be hot water to use, not only using water wisely but also can energy savings; The present invention can improve the scope of installing and using of solar water heater greatly, tier building particularly, under the situation that the roof area allows, can allow bottom can both obtain stable hot water by the present invention to high-rise resident family, under the situation of environmental pollution at present and energy scarcity, promoting the present invention not only has good economic benefits and has certain social value.
A kind of hot water intelligent circulation control system provided by the invention, method and domestic solar water heater, by at the water circulation pipe that goes out that connects the solar water heater delivery port flow sensor and temperature sensor being set, be provided with water pump at the backwater circulation pipeline that connects the solar water heater inlet mouth, and going out water circulation pipe is connected by magnetic valve with the backwater circulation pipeline, main controller changes the closed and disconnected of controlling magnetic valve according to the water-flow signal of flow sensor transmission and the leaving water temperature of temperature sensor detection, and the startup of water pump and stopping, when the leaving water temperature of temperature sensor detection is lower than the temperature threshold of setting, the closed electromagnetic valve, then go out water circulation pipe and backwater circulation pipeline and constitute closed circuit, water pump constantly will be transported to the water inlet of solar water heater from the solar water heater delivery port by the backwater circulation pipeline via the water that goes out the water circulation pipe outflow, realize heating again, and main controller of the present invention also has the time control module of setting water pump and magnetic valve working time and dwell time, when solenoid closure and starting mode of pump, time control module begins the working time of magnetic valve and water pump is carried out timing, in time control module the working time of magnetic valve and water pump is carried out in the process of timing, the leaving water temperature that temperature sensor detects is higher than the temperature threshold that equals to set, and then main controller stops water pump, the timing time that disconnects magnetic valve and time control module makes zero; Finishing when time control module timing is working time of water pump and magnetic valve to have reached the working time that sets and the leaving water temperature that the simultaneous temperature sensor detects is lower than the temperature threshold of setting, then main controller control magnetic valve disconnects, water pump stops to begin the dwell time of magnetic valve and water pump is carried out timing with time control module, prevent hot water cyclesystem and repeated work in the short time because water temperature is low, in time control module the dwell time of magnetic valve and water pump is carried out in the process of timing, the leaving water temperature that temperature sensor detects is higher than the temperature threshold that equals to set, then the timing time of main controller control time control module makes zero, finishing when time control module timing is that the dwell time of water pump and magnetic valve has reached the dwell time that sets and the leaving water temperature that the simultaneous temperature sensor detects is lower than the temperature threshold of setting, then the timing time of main controller control time control module makes zero, the present invention can realize only need emitting when the solar water heater user uses a small amount of cold water just can have hot water to use, what solved that existing domestic solar water heater exists causes during water need emit more cold water the first time apart from roof floor far away because pipeline is long, poor for applicability, and then can't satisfy the problem of low floor user's demand, can realize that not only high floor user can have stable hot water to use, and low floor also can be convenient to use hot water at any time, be convenient to improve range of application and the result of use of solar water heater, conserve water resource and the energy; Be covered with heating tape on the outer wall that goes out water circulation pipe and backwater circulation pipeline of outdoor section in addition, set the heating tape duration of heat and stop the duration of heat by time control module, main controller is according to the heating tape duration of heat that sets and stop the duration of heat and control heating tape beginning and stop heating, the problem that can be easy to freeze at the pipeline of outdoor section in the north of china in winter low temperature environment, and adopting this control mode can keep pipeline to freeze can not superheated, energy savings reduces use cost; Electro connecting pressure gauge also has the function of the setting pressure upper limit and low pressure limit in addition, after water compensating valve is opened, the water pipe pressure parameter that detects when this electro connecting pressure gauge is during more than or equal to the upper pressure limit of setting or smaller or equal to the low pressure limit set, and main controller control water pump stops; The water pipe pressure parameter that detects when this electro connecting pressure gauge is during greater than the low pressure limit of setting and less than the upper pressure limit set, and main controller control starting mode of pump has been realized high and do not have when pressure and stop water pump, startup water pump when hydraulic pressure is low when hydraulic pressure; And main controller is controlled out water circulation pipe and is quit work when water compensating valve is opened, after water compensating valve is closed again, control out water circulation pipe and continue the certain hour that quits work, can guarantee like this to re-use after water in water tank that the solar water appliance has and hot water fully mix, improve the hot water result of use, and applied range of the present invention, applicability is strong, the efficient height, energy-conserving and environment-protective, make the high low layer user of building all can use solar water heater, and can be convenient to use hot water at any time, not only be convenient to produce, and cost is very cheap is suitable for extensive popularization.
The above; only be the preferable specific embodiment of the present invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to replacement or change according to technical scheme of the present invention and inventive concept thereof, all should be encompassed within protection scope of the present invention.

Claims (9)

1. hot water intelligent circulation control system is characterized in that comprising: what connect solar water heater (1) delivery port goes out water circulation pipe (5) and the backwater circulation pipeline (7) that is connected solar water heater (1) water inlet; Describedly go out water circulation pipe (5) and be provided with and when having current in the pipeline, send water-flow signal to flow sensor (3) and the temperature sensor (4) of main controller (16); Described backwater circulation pipeline (7) is provided with water pump (6); Describedly go out water circulation pipe (5) and be connected by magnetic valve (10) with backwater circulation pipeline (7);
Also comprise connection traffic sensor (3) respectively, temperature sensor (4), magnetic valve (10) and water pump (6), has the temperature control modules (15) of setting the leaving water temperature threshold value, the working time and the dwell time that also have setting magnetic valve (10) and water pump (6), according to the control signal of main controller work at present time of magnetic valve and water pump and dwell time are carried out the time control module (14) that timing and timing time make zero, be used for being lower than according to the leaving water temperature that temperature sensor (4) detects judged result control magnetic valve (10) closure of the leaving water temperature threshold value of temperature control modules (15) setting, water pump (6) startup and time control module (14) begin the working time timing to magnetic valve (10) and water pump (6), in time control module (14) working time of magnetic valve (10) and water pump (6) is carried out in the process of timing, be higher than judged result control magnetic valve (10) disconnection of the leaving water temperature threshold value that equals temperature control modules (15) setting according to the leaving water temperature of temperature sensor (4) detection, water pump (6) stops and the timing time of time control module (14) makes zero, the magnetic valve (10) that equals to set when the timing duration of time control module (14) and water pump (6) are controlled magnetic valve (10) and are disconnected during the working time, water pump (6) stops and time control module (14) begins the dwell time of magnetic valve (10) and water pump (6) is carried out timing, in time control module (14) dwell time of magnetic valve (10) and water pump (6) is carried out in the process of timing, the timing time that the leaving water temperature that detects according to temperature sensor (4) is higher than the judged result control time control module (14) that equals the leaving water temperature threshold value that temperature control modules (15) sets makes zero, and controls the main controller (16) that the timing time of time control module (14) makes zero when the magnetic valve (10) that equals to set when the timing duration of time control module (14) and the dwell time of water pump (6).
2. a kind of hot water intelligent circulation control system according to claim 1 is characterized in that also comprising the water pipe (12) that connects backwater circulation pipeline (7); Described water pipe (12) is provided with water compensating valve (13) and electro connecting pressure gauge (11).
3. a kind of hot water intelligent circulation control system according to claim 1 is characterized in that also comprising connecting water circulation pipe (5), is used for a plurality of water pipelines (8) of output hot water; Each described water pipeline (8) is provided with a hot water valve (9).
4. a kind of hot water intelligent circulation control system according to claim 1 is characterized in that being covered with heating tape (2) on the outer wall that water circulation pipe (5) and backwater circulation pipeline (7) of outdoor section.
5. a kind of hot water intelligent circulation control system according to claim 4, it is characterized in that time control module (14) also is used for setting the duration of heat of heating tape (2) and stopping the duration of heat, main controller (16) is according to heating tape (2) duration of heat that sets and stop the duration of heat and control heating tape (2) beginning and stop heating, and controls heating tape (2) stop to heat when going out the work of water circulation pipe (5) and backwater circulation pipeline (7).
6. a kind of hot water intelligent circulation control system according to claim 2 is characterized in that described electro connecting pressure gauge (11) also has the function of the setting pressure upper limit and low pressure limit; After water compensating valve (13) was opened, water pipe (12) pressure parameter that detects when this electro connecting pressure gauge (11) was during more than or equal to the upper pressure limit of setting or smaller or equal to the low pressure limit set, and main controller (16) control water pump (6) stops; Water pipe (12) pressure parameter that detects when this electro connecting pressure gauge (11) is during greater than the low pressure limit of setting and less than the upper pressure limit set, and main controller (16) control water pump (6) starts; When water compensating valve (13) when opening main controller (16) control out that water circulation pipe (5) quits work and after water compensating valve (13) is closed again, control out water circulation pipe (5) and continue the certain hour that quits work.
7. a hot water intelligent circulation control method is characterized in that comprising the steps:
S1: after the beginning, flow sensor (3) sends water-flow signal to main controller (16), carries out S2;
S2: temperature sensor (4) detects coolant-temperature gage, carries out S3;
S3: main controller (16) judges that whether the leaving water temperature that temperature sensor (4) detects is lower than the leaving water temperature threshold value that temperature control modules (15) is set, and is then to carry out S4, otherwise finishes;
S4: main controller (16) control magnetic valve (10) is closed, water pump (6) starts and time control module (14) begins the working time of magnetic valve (10) and water pump (6) is carried out timing, carries out S5;
S5: water pump (6) work, carry out S6;
S6: main controller (16) judges whether the leaving water temperature that temperature sensor (4) detects is higher than the leaving water temperature threshold value that equals temperature control modules (15) setting, is then to carry out S12, otherwise carries out S7;
S7: the magnetic valve (10) whether the timing duration of main controller (16) judgement time control module (14) equals to set and the working time of water pump (6) are then to carry out S8, otherwise carry out S5;
S8: main controller (16) control magnetic valve (10) disconnects, water pump (6) stops and time control module (14) begins the dwell time of magnetic valve (10) and water pump (6) is carried out timing, carries out S9;
S9: main controller (16) judges whether the leaving water temperature that temperature sensor (4) detects is higher than the leaving water temperature threshold value that equals temperature control modules (15) setting, is then to carry out S11, otherwise carries out S10;
S10: the magnetic valve (10) whether the timing duration of main controller (16) judgement time control module (14) equals to set and the dwell time of water pump (6) are then to carry out S11, otherwise carry out S9;
S11: the timing time of main controller control time control module (14) makes zero, and finishes;
S12: main controller (16) control magnetic valve (10) disconnects, water pump (6) stops and the timing time of time control module (14) makes zero, and finishes.
8. a kind of hot water intelligent circulation control method according to claim 7 is characterized in that also having following steps before step S1:
Temperature control modules (15) is set the leaving water temperature threshold value, and time control module (14) is set working time and the dwell time of magnetic valve (10) and water pump (6).
9. a domestic solar water heater is characterized in that, comprises each described hot water intelligent circulation control system of claim 1 to 6.
CN201310216199.7A 2013-05-31 2013-05-31 System and method for intelligent hot water circulation control and domestic solar water heater Active CN103277924B (en)

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CN104847959A (en) * 2015-04-30 2015-08-19 广东美的暖通设备有限公司 Intelligent electromagnetic vale control method, electromagnetic valve and water heater system
CN105605813A (en) * 2016-03-23 2016-05-25 扬州帅因特光电科技开发有限公司 Novel solar water heater
CN105674577A (en) * 2016-03-26 2016-06-15 广东万家乐燃气具有限公司 Hot water circulation control system with autonomous learning ability
CN105698368A (en) * 2014-11-25 2016-06-22 福州斯狄渢电热水器有限公司 Water boiler and control method thereof
CN107091495A (en) * 2017-04-24 2017-08-25 广东美的暖通设备有限公司 Hot-water heating system control method, hot-water heating system and computer-readable recording medium
CN107741095A (en) * 2017-09-21 2018-02-27 珠海优特物联科技有限公司 The control method and device of water recovery apparatus
CN109812978A (en) * 2019-03-14 2019-05-28 田成洋 A kind of water heater cold water reflux unit and the control method that flows back
CN110878993A (en) * 2019-12-02 2020-03-13 中北大学 Non-overflow automatic water replenishing control system and method for solar water heater
CN112783235A (en) * 2019-12-31 2021-05-11 湖北省地质局武汉水文地质工程地质大队 Method, system and device for controlling temperature of underground pipe through water circulation based on pid algorithm
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CN104847959A (en) * 2015-04-30 2015-08-19 广东美的暖通设备有限公司 Intelligent electromagnetic vale control method, electromagnetic valve and water heater system
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CN107741095A (en) * 2017-09-21 2018-02-27 珠海优特物联科技有限公司 The control method and device of water recovery apparatus
CN109812978A (en) * 2019-03-14 2019-05-28 田成洋 A kind of water heater cold water reflux unit and the control method that flows back
CN110878993A (en) * 2019-12-02 2020-03-13 中北大学 Non-overflow automatic water replenishing control system and method for solar water heater
CN112783235A (en) * 2019-12-31 2021-05-11 湖北省地质局武汉水文地质工程地质大队 Method, system and device for controlling temperature of underground pipe through water circulation based on pid algorithm
CN114427698A (en) * 2022-03-10 2022-05-03 浙江广涛卫厨有限公司 Multi-energy intelligent combination and distribution control system
CN114427698B (en) * 2022-03-10 2023-05-09 浙江广涛卫厨有限公司 Control system for intelligent combination and distribution of multiple energy sources

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