CN114995547A - Energy-conserving water supply control system based on solar energy - Google Patents
Energy-conserving water supply control system based on solar energy Download PDFInfo
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- CN114995547A CN114995547A CN202210692190.2A CN202210692190A CN114995547A CN 114995547 A CN114995547 A CN 114995547A CN 202210692190 A CN202210692190 A CN 202210692190A CN 114995547 A CN114995547 A CN 114995547A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 308
- 238000005485 electric heating Methods 0.000 claims abstract description 56
- 239000008236 heating water Substances 0.000 claims abstract description 55
- 238000004891 communication Methods 0.000 claims abstract description 38
- 238000010438 heat treatment Methods 0.000 claims abstract description 36
- 238000006243 chemical reaction Methods 0.000 claims description 42
- 238000002955 isolation Methods 0.000 claims description 40
- 238000001514 detection method Methods 0.000 claims description 32
- 239000003990 capacitor Substances 0.000 claims description 2
- 229910044991 metal oxide Inorganic materials 0.000 claims 1
- 150000004706 metal oxides Chemical class 0.000 claims 1
- 239000004065 semiconductor Substances 0.000 claims 1
- 239000008400 supply water Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 230000008859 change Effects 0.000 description 6
- 230000015556 catabolic process Effects 0.000 description 3
- 238000004146 energy storage Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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- 230000002441 reversible effect Effects 0.000 description 1
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B11/00—Arrangements or adaptations of tanks for water supply
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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 invention relates to the technical field of solar water supply control, and provides a solar energy-saving water supply control system, which comprises a water storage device, a user water tank, a water supply module and an information acquisition module, wherein the information acquisition module is in communication connection with the water supply module, so as to transmit the collected user water tank and the setting information to the water supply module, the water storage device comprises a solar water storage tank and at least one electric heating water storage tank, the solar water storage tank and the electric heating water storage tank, the solar water storage tank and the user water tank, and the electric heating water storage tank and the user water tank are respectively connected through pipelines, electromagnetic valves are respectively arranged at the joints of the solar water storage tank, the electric heating water storage tank and the pipeline, the water supply module is respectively electrically connected with each electromagnetic valve, the electromagnetic valve is controlled to be switched on and off, and a heating device electrically connected with the water supply module is arranged in the electric heating water storage tank; the invention can provide hot water with required water temperature for users in real time.
Description
Technical Field
The invention relates to the technical field of solar water supply control, in particular to an energy-saving water supply control system based on solar energy.
Background
With the development of science and technology and the improvement of environmental protection consciousness of people, more and more buildings such as apartments and dormitories adopt solar heating devices to provide hot water for a water supply system so as to meet the requirements of energy conservation and environmental protection.
Most of the existing energy-saving water supply control systems comprise a water supply module and an information acquisition module, wherein the water supply module is electrically connected with a solar water storage device and is used for monitoring and controlling the solar water storage device, a solar heat collection circulating device is arranged in the solar water storage device to carry out solar heating on water in the solar water storage device, the solar water storage device can be arranged on a roof or in a house, the information acquisition module is arranged at a user water tank and can collect water demand and user water tank state information of users in each room of a building and transmit the water demand and the user water tank state information to the water supply module, the solar water storage device is connected with the user water tank through a pipeline, and an electromagnetic valve electrically connected with the water supply module is arranged at the pipeline to control water supply to each user water tank; although this kind of water supply mode intelligent degree is high, when sunshine is insufficient, temperature is low in the solar energy water storage device, and when the user need use warm water or hot water, the user still need heat the back to the water in the user's water tank and just can use, has wasted user's time, and it is not convenient enough to use.
Disclosure of Invention
The invention aims to provide an energy-saving water supply control system which can provide hot water with required water temperature for users in real time.
In order to solve the above problems, the present invention provides an energy-saving water supply control system based on solar energy, comprising: a water storage device, a user water tank, a water supply module and an information acquisition module, wherein the information acquisition module is in communication connection with the water supply module, so as to transmit the collected user water tank and the setting information to the water supply module, the water storage device comprises a solar water storage tank and at least one electric heating water storage tank, the solar water storage tank and the electric heating water storage tank, the solar water storage tank and the user water tank, and the electric heating water storage tank and the user water tank are respectively connected through pipelines, electromagnetic valves are respectively arranged at the joints of the solar water storage tank and the electric heating water storage tank and the pipeline, the water supply module is respectively and electrically connected with each electromagnetic valve, so as to control the on-off of the electromagnetic valve, a heating device electrically connected with the water supply module is arranged in the electric heating water storage tank, and the solar water storage tank and the electric heating water storage tank are respectively internally provided with a detection sensing device electrically connected with the water supply module.
Furthermore, the water supply module comprises a power supply module, a main control module, a solenoid valve management module, an Ethernet communication module, a heating control module and an isolation conversion module, wherein the controlled end of the solenoid valve management module is connected with the main control module, the input end of the solenoid valve management module is connected with the power supply module, the output end of the power supply module is respectively connected with each solenoid valve, the Ethernet communication module is connected with the main control module and used for communication between the main control module and the information acquisition module, the input end of the heating control module is connected with the main control module, the output end of the heating control module is connected with the heating device, the input end of the isolation conversion module is connected with the detection sensing device, and the output end of the isolation conversion module is connected with the main control module so as to transmit detection information of the water storage device to the main control module after isolation conversion.
Furthermore, the detection sensing device comprises a temperature sensor and a water level sensor, the input end of the isolation conversion module is respectively connected with the temperature sensor and the water level sensor, and the output end of the isolation conversion module is connected with the main control module, so that detected water level information and temperature information in the solar water storage tank and the electric heating water storage tank are isolated and converted and then transmitted to the main control module.
Further, the water supply module still includes booster pump drive circuit, be provided with the booster pump in solar energy storage water tank and the electrical heating storage water tank respectively, the booster pump with the pipe connection, every way booster pump drive circuit's controlled end with main control module connects, and the output with correspond the booster pump is connected, in order to control the switch of booster pump.
Further, booster pump drive circuit includes four ways drive leading circuit and H bridge drive circuit, H bridge drive circuit includes four MOS pipes, and wherein, the source electrode power connection of first MOS pipe, drain electrode meet the first end of booster pump, the source electrode power connection of second MOS pipe, drain electrode meet the second end of booster pump, the source electrode ground connection of third MOS pipe, drain electrode meet the first end of booster pump, the source electrode ground connection of fourth MOS pipe, drain electrode meet the second end of booster pump, four the grid of MOS pipe is respectively through all the way drive leading circuit with host system connects, in order to receive the PWM signal that host system sent.
Furthermore, the drive front-end circuit includes isolation amplifier circuit and time delay protection circuit, isolation amplifier circuit's input with host system connects, is used for right the PWM signal that host system sent keeps apart, enlargies, time delay protection circuit includes first diode and first triode, the controlled end of first triode with isolation amplifier circuit's output is connected, and the output termination the grid of MOS pipe is used for the drive the MOS pipe, and makes the MOS pipe conduction time delay, first diode is parallelly connected between MOS pipe and the ground, is used for preventing MOS pipe overvoltage breakdown.
Furthermore, the electromagnetic valve management module comprises an electromagnetic valve control circuit and a position detection circuit, wherein the controlled end of each electromagnetic valve control circuit is respectively connected with the main control module, the output end of each electromagnetic valve control circuit is respectively connected with the corresponding electromagnetic valve, the output end of each position detection circuit is respectively connected with the main control module, and the input end of each position detection circuit is suitable for being connected with a position sensor arranged at the position of the corresponding electromagnetic valve so as to transmit the detected position information of the valve body corresponding to the electromagnetic valve to the main control module.
Furthermore, the electromagnetic valve control circuit comprises a fifth MOS tube, a second diode and a first RC circuit, wherein the grid electrode of the fifth MOS tube is connected with the main control module, the source electrode of the fifth MOS tube is grounded, the drain electrode of the fifth MOS tube is connected with the negative electrode of the electromagnetic valve, the positive electrode of the electromagnetic valve is connected with the power module, the second diode is connected with the two ends of the electromagnetic valve in parallel and used for inhibiting self-induction voltage generated by the electromagnetic valve, and the first RC circuit is connected with the two ends of the electromagnetic valve in parallel and used for preventing the electromagnetic valve from generating interference during action and enabling the electromagnetic valve to be closed for delayed action.
Furthermore, the ethernet communication module includes an ethernet conversion circuit, an isolation circuit, an ethernet interface circuit and an electrostatic protection circuit, the input end of the ethernet conversion circuit is connected to the main control module, the output end of the ethernet conversion circuit is connected to the input end of the ethernet interface circuit after being isolated by the isolation circuit, the output end of the ethernet interface circuit is suitable for being connected to the information acquisition module, and the electrostatic protection circuit is connected to the output end of the ethernet conversion circuit for protecting the ethernet conversion circuit.
Further, the water supply module further comprises a 4G communication module, and the 4G communication module is connected with the main control module and used for communication between the main control module and the manager mobile terminal.
Compared with the prior art, the invention has the beneficial effects that:
when the solar water storage tank is used, the water supply module monitors water temperature information in the solar water storage tank in real time through the detection sensing device electrically connected with the water supply module, and when the water temperature in the solar water storage tank is greater than a water supply temperature threshold value, the electric heating water storage tank is not used; when the water temperature in the solar water storage tank is smaller than the water supply temperature threshold, the water supply module opens the electromagnetic valve between the solar water storage tank and the electric heating water storage tank, the solar water storage tank supplies water to the electric heating water storage tank to a set water level through a pipeline, and then the water supply module opens the heating device in the electric heating water storage tank to heat the water temperature in the electric heating water storage tank device to the water supply temperature threshold. When the water supply module receives the setting information containing the water demand of the user sent by the information acquisition module, if the demand temperature set by the user is less than the water temperature in the solar water storage tank, the electromagnetic valve at the position of the solar water storage tank and the water tank pipeline of the user is opened by the water supply module, water is directly supplied to the user by the solar water storage tank, when the water temperature in the solar water storage tank is lower than the water temperature required by the user, the electromagnetic valve at the position of the electric heating water storage tank and the water tank pipeline of the user is opened by the water supply module, water can be supplied to the user by the electric heating water storage tank, the problem that the water temperature in the solar water storage tank is too low is avoided, the user demand cannot be met, the condition that the user needs to additionally heat for waiting is avoided, the user time is saved, the intelligent degree is high, and the use is more convenient.
Drawings
FIG. 1 is a schematic overall structure diagram of an embodiment of the present invention;
FIG. 2 is a schematic diagram of the overall circuit schematic structure of the embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a heating control module according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a booster pump driving circuit according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a driving front-end circuit according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a schematic structure of a position detection circuit according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of the control circuit of the solenoid valve according to the embodiment of the present invention;
fig. 8 is a schematic structural diagram of an ethernet communication module according to an embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be a mechanical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description herein, references to the terms "an embodiment," "one embodiment," and "one implementation," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or implementation is included in at least one embodiment or example implementation of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or implementation. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or implementations.
As shown in fig. 1, there is provided a solar-based energy-saving water supply control system, including: a water storage device, a user water tank, a water supply module and an information acquisition module, wherein the information acquisition module is in communication connection with the water supply module, so as to transmit the collected user water tank and the setting information to the water supply module, the water storage device comprises a solar water storage tank and at least one electric heating water storage tank, the solar water storage tank and the electric heating water storage tank, the solar water storage tank and the user water tank, and the electric heating water storage tank and the user water tank are respectively connected through pipelines, electromagnetic valves are respectively arranged at the joints of the solar water storage tank, the electric heating water storage tank and the pipeline, the water supply module is respectively electrically connected with each electromagnetic valve, so as to control the on-off of the electromagnetic valve, a heating device electrically connected with the water supply module is arranged in the electric heating water storage tank, and the solar water storage tank and the electric heating water storage tank are respectively internally provided with a detection sensing device electrically connected with the water supply module.
It should be noted that, the information acquisition module is arranged at the user water tank, can collect the water demand setting information of the user in each room of the building and the state information of the user water tank, the state information of the user water tank includes the temperature and water level information in the user water tank, the water demand setting information includes the water temperature and water amount information required by the user and the number information of the user, can be set by the user through the information acquisition module, the water supply module is internally provided with a water supply temperature threshold value, which is the highest water temperature demand value that the user can set at the user water tank in the building, the detection sensing device can acquire the water level information and the temperature information in the solar water storage tank and the electric heating water storage tank, the solar water storage device heats the stored water through the solar heat collection circulating device arranged inside, when in use, the water supply module monitors the water temperature information in the solar water storage tank in real time through the detection sensing device electrically connected with the water supply module, when the water temperature in the solar water storage tank is greater than the water supply temperature threshold, the electric heating water storage tank is not used, when the water temperature in the solar water storage tank is less than the water supply temperature threshold, the water supply module opens the electromagnetic valve between the solar water storage tank and the electric heating water storage tank, the solar water storage tank supplies water to the electric heating water storage tank through the pipeline to a set water level, then the water supply module opens the heating device in the electric heating water storage tank to heat the water temperature in the electric heating water storage tank to the water supply temperature threshold, when the water supply module receives the set information which is sent by the information acquisition module and contains the water demand of the user, if the demand temperature set by the user is less than the water temperature in the solar water storage tank, the water supply module opens the electromagnetic valves at the pipeline between the solar water storage tank and the user water storage tank to directly supply water to the user through the solar water storage tank, when the water temperature in the solar water storage tank is less than the water demand of the user, the water supply module opens the electromagnetic valves at the pipelines of the electric heating water storage tank and the user water tank, so that water can be supplied to a user by the electric heating water storage tank, the condition that the user needs to additionally heat for waiting because the water temperature in the solar water storage tank is too low and cannot meet the user requirement is avoided, the user time is saved, the intelligent degree is high, and the use is more convenient;
it can be understood that, in order to save electric energy and make the use of the user more convenient, when the user sets the required water temperature, if the water temperature is between the water temperature in the solar water storage tank and the water supply temperature threshold, the calculation can be carried out by the water supply module, the information acquisition module acquires the temperature and water level information of the water tank of the user in real time and transmits the information to the water supply module, the water supply module controls the solar water storage tank and the electric heating water storage tank in turn to supply water to the water tank of the user, so that the water temperature is in accordance with the required value of the user, the use of the user is more convenient, the phenomenon that the user needs to mix cold water after only supplying water by the electric heating water storage tank is avoided, thereby the water which adopts electric heating is used too much, and the energy is saved;
when using, according to user's condition and actual demand in the building, can also set up a plurality of electrical heating storage water tanks, for example, when setting up 2 electrical heating storage water tanks, 2 electrical heating storage water tanks can set up different temperature threshold values, and one of them is for supplying water temperature threshold value, and another temperature threshold value is located solar energy storage water tank in the temperature and between the temperature threshold value to, when the module that supplies water acquires user's demand temperature, can control the electrical heating storage water tank that more is close the demand temperature and supply water to the user, it is more convenient, energy-conserving.
In an embodiment of the present invention, the water supply module includes a power supply module, a main control module, a solenoid valve management module, an ethernet communication module, a heating control module and an isolation conversion module, wherein a controlled end of the solenoid valve management module is connected to the main control module, an input end of the solenoid valve management module is connected to the power supply module, an output end of the solenoid valve management module is connected to each of the solenoid valves, the ethernet communication module is connected to the main control module and used for communication between the main control module and the information acquisition module, an input end of the heating control module is connected to the main control module, an output end of the heating control module is connected to the heating device, an input end of the isolation conversion module is connected to the detection sensing device, and an output end of the isolation conversion module is connected to the main control module so as to transmit detection information of the water storage device to the main control module after isolation conversion.
It should be noted that, as shown in fig. 2, the water supply module uses the main control module as the control center, in this embodiment, the main control module can use a single chip microcomputer with model number STM32F429ZET6, which can be conveniently connected to the single chip microcomputer through a debugging interface, and a water supply temperature threshold value can be written by a manager, and at the same time, the single chip microcomputer can also collect the historical water temperature condition of the user for adjustment to obtain a more accurate water supply temperature threshold value, when in use, the main control module obtains the temperature information of the solar water storage tank and the electric heating water storage tank through the isolation conversion module, so as to control the electromagnetic valve management module to drive the electromagnetic valve according to the requirement, so as to realize that the solar water storage tank supplies water to the electric heating water storage tank, and then the main control module can control the heating device to heat the water in the electric heating water storage tank through the heating control module to reach the water supply temperature threshold value, and can communicate with the information acquisition module through the ethernet communication module, the main control module controls the electromagnetic valve through the electromagnetic valve management module to realize water supply to the user water tank;
in this embodiment, the heating device needs to electrically heat water temperature and is a high-power device, and may cause fluctuation to a power supply of the system when in use, so the heating device may employ an intelligent heating device and independently supply power, as shown in fig. 3, the heating control module may employ a CAN communication module to connect the intelligent heating device, so as to control a switch of the heating device, wherein the chip U38 is a CAN communication conversion chip with a model of SIT65HVD230, and two communication lines of the CAN communication are respectively provided with fuses F4 and F5, so as to protect the chip U38 and ensure stability of communication.
In an embodiment of the invention, the detection sensing device comprises a temperature sensor and a water level sensor, the input end of the isolation conversion module is respectively connected with the temperature sensor and the water level sensor, and the output end of the isolation conversion module is connected with the main control module, so that detected water level information and temperature information in the solar water storage tank and the electric heating water storage tank are transmitted to the main control module after being isolated and converted.
It should be noted that, in this embodiment, the solar water storage tank and the electric heating water storage tank are both provided with a detection sensing device, the detection sensing device includes a temperature sensor and a water level sensor, the isolation conversion module can acquire temperature information of the solar water storage tank and the electric heating water storage tank through the temperature sensor, and is transmitted to the main control module, in order to facilitate the main control module to judge whether the electric heating water storage tank is needed or not, and a water tank for supplying water to the user water tank is selected, the isolation conversion module can acquire water level information of the solar water storage tank and the electric heating water storage tank through the water level sensor, the water level information is transmitted to the main control module after conversion, the main control module determines whether the electric heating water storage tank needs to be added with water according to the water level information of the electric heating water storage tank, and simultaneously, when water is supplied to the user, the main control module can determine the water supply amount to the user according to the change of the water level information.
In an embodiment of the present invention, the water supply module further includes a booster pump driving circuit, booster pumps are respectively disposed in the solar water storage tank and the electric heating water storage tank, the booster pumps are connected to the pipeline, a controlled end of each booster pump driving circuit is connected to the main control module, and an output end of each booster pump driving circuit is connected to the corresponding booster pump to control on and off of the booster pump.
It should be noted that, because the invention is used in buildings, the water supply pressure of each floor may be inconsistent, and the water supply is too slow for the floor with low water supply pressure, which may affect the user experience, therefore, booster pumps are respectively arranged in the solar water storage tank and the electric heating water storage tank, when the water supply is performed for the floor with low water supply pressure, the main control module determines the floor of the user according to the user number information when the information acquisition module receives the user water demand setting, and then selects to send a control signal to the booster pump driving circuit, and the booster pump driving circuit drives the booster pump, so as to supply water to the user better.
In an embodiment of the present invention, the booster pump driving circuit includes a four-way driving front-end circuit and an H-bridge driving circuit, the H-bridge driving circuit includes four MOS transistors, wherein a source of a first MOS transistor is connected to a power supply, a drain of the first MOS transistor is connected to a first end of the booster pump, a source of a second MOS transistor is connected to the power supply, a drain of the second MOS transistor is connected to a second end of the booster pump, a source of a third MOS transistor is grounded, a drain of the third MOS transistor is connected to the first end of the booster pump, a source of a fourth MOS transistor is grounded, a drain of the fourth MOS transistor is connected to the second end of the booster pump, and gates of the four MOS transistors are respectively connected to the main control module through one of the driving front-end circuits to receive the PWM signal sent by the main control module.
It should be noted that, because the floors of users are different, in order to achieve stable water supply for different floors, different boosting pressures need to be provided according to the different floors of users, as shown in fig. 4, the booster pump driving circuit includes a four-way driving front circuit and an H-bridge driving circuit, the H-bridge driving circuit includes four MOS transistors, gates of the four MOS transistors are respectively connected with the main control module through one-way driving front circuit, the front circuit is used for amplifying signals sent by the main control module, when in use, the main control module sends PWM signals to two opposite MOS transistors, so as to control the rotation of the booster pump, for example, the main control module sends PWM signals to a first MOS transistor Q80 and a fourth MOS transistor Q83, the first MOS transistor Q80 and the fourth MOS transistor Q83 are conducted, a first end of the booster pump is connected to a power source through the first MOS transistor Q80, a second end of the booster pump is grounded through the fourth MOS transistor Q83, so that the booster pump works, at this moment, change the duty cycle of PWM signal, just can change the conduction angle of first MOS pipe Q80 and fourth MOS pipe Q83, and then change the electric current through the booster pump, change the rotational speed of booster pump, and then change water supply pressure, and similarly, when main control module sent the PWM signal to second MOS pipe Q82 and third MOS pipe Q81, the booster pump reversal, turn to and the rotational speed through booster pump drive circuit from this, main control module can provide different pressures according to the difference of user's floor, make the different floors all obtain steady water supply.
In an embodiment of the present invention, the driving front-end circuit includes an isolation amplifying circuit and a delay protection circuit, an input end of the isolation amplifying circuit is connected to the main control module for isolating and amplifying the PWM signal sent by the main control module, the delay protection circuit includes a first diode and a first triode, a controlled end of the first triode is connected to an output end of the isolation amplifying circuit, an output end of the first triode is connected to a gate of the MOS transistor for driving the MOS transistor and delaying conduction of the MOS transistor, and the first diode is connected in parallel between the MOS transistor and ground for preventing overvoltage breakdown of the MOS transistor.
It should be noted that, as shown in fig. 5, the isolation amplifying circuit includes a second transistor Q86 and a third transistor Q89, the base of the second transistor Q86 is connected to the power supply, when the collector receives the PWM signal from the main control module, a corresponding current signal is generated at its emitter, so as to achieve the isolated output of the main control module signal, and improve the stability of the signal, so as to make the control of the booster pump more accurate, the third transistor Q89 and the resistor R563 constitute the amplifying circuit, so as to amplify the isolated signal and input the signal to the base of the first transistor Q88, the first transistor Q88 controls the conduction of the MOS transistor, the first diode is connected in parallel between the MOS transistor and the ground, so as to eliminate the voltage spike and prevent the MOS transistor from overvoltage breakdown, as shown in fig. 4, at the moment of the signal switching of the H-bridge circuit, for example, when the main control module switches the first transistor Q80 and the fourth transistor Q83 to conduct the second MOS transistor Q82 and the third MOS transistor Q81, at this time, there may be a case where the first MOS transistor Q80 and the third MOS transistor Q81 are turned on simultaneously, and at this time, the power is grounded through the first MOS transistor Q80 and the third MOS transistor Q81, the transistors are in a short-circuit state instantaneously, which may cause damage to the transistors, and a transistor is added to the transistors, as shown in fig. 5, in the delay protection circuit, the third MOS transistor Q81 is controlled by the first transistor Q88, the gate of the transistor itself has a capacitance corresponding to about 1000pF based on the common sense, and the on-resistance of the transistor is small, so that the charge on the gate capacitance of the third MOS transistor Q81 can be rapidly discharged when the first transistor Q88 is turned off to be turned on, and is rapidly turned off, but when the first transistor Q88 is turned on to be off, the gate of the third MOS transistor Q81 needs a certain time to be charged through the on-resistance of the first transistor Q88, and the speed of the third MOS transistor Q81 is faster to be turned off to be turned on from being turned on than from being turned off, in a similar way, because first MOS pipe Q80's grid department is connected with same time delay protection circuit, consequently, switch on the moment that second MOS pipe Q82 and third MOS pipe Q81 switched on by controlling first MOS pipe Q80 and fourth MOS pipe Q83 when the main control module, the MOS pipe that needs to cut off can end earlier, the MOS pipe that needs to switch on can switch on afterwards, the condition emergence that the MOS pipe is in instantaneous short-circuit state has been avoided, booster pump drive circuit's stability has been improved, thereby make booster pump steady operation, supply water to user's water tank.
In an embodiment of the present invention, the electromagnetic valve management module includes an electromagnetic valve control circuit and a position detection circuit, a controlled end of each electromagnetic valve control circuit is connected to the main control module, an output end of each electromagnetic valve control circuit is connected to the corresponding electromagnetic valve, an output end of each position detection circuit is connected to the main control module, and an input end of each position detection circuit is adapted to be connected to a position sensor disposed at the electromagnetic valve, so as to transmit the detected position information of the valve body of the corresponding electromagnetic valve to the main control module.
It should be noted that, the electromagnetic valve management module includes electromagnetic valve control circuits and position detection circuits corresponding to the number of electromagnetic valves, each electromagnetic valve control circuit and position detection circuit corresponds to one electromagnetic valve, the main control module sends a control signal to the corresponding electromagnetic valve control circuit according to the number of the user and the water demand, and drives the corresponding electromagnetic valve to operate to supply water, the input end of the position detection circuit is connected to a position sensor arranged at the electromagnetic valve, and transmits the detected position information of the valve body corresponding to the electromagnetic valve to the main control module, and the main control module determines whether the electromagnetic valve is in place or not, so as to better supply water to the user, and the position detection circuit is shown in fig. 6, and adopts an optical coupler with the model of PC357N3J000F to isolate the position information signal of the electromagnetic valve, so as to improve the accuracy of detection.
In an embodiment of the present invention, the solenoid valve control circuit includes a fifth MOS transistor, a second diode, and a first RC circuit, a gate of the fifth MOS transistor is connected to the main control module, a source is grounded, a drain is connected to a cathode of the solenoid valve, a positive electrode of the solenoid valve is connected to the power module, the second diode is connected in parallel to two ends of the solenoid valve and is configured to suppress a self-inductance voltage generated by the solenoid valve, and the first RC circuit is connected in parallel to two ends of the solenoid valve and is configured to prevent interference when the solenoid valve operates and delay an operation when the solenoid valve is closed.
It should be noted that, as shown in fig. 7, when in use, the main control module sends a driving signal to the gate of the fifth MOS transistor Q4, the fifth MOS transistor Q4 is turned on, the negative electrode of the electromagnetic valve LS1 is grounded through the fifth MOS transistor Q4, the positive electrode is turned on by the power supply, the electromagnetic valve LS1 is turned on, the coil of the electromagnetic valve LS1 generates a reverse self-induction voltage when powered on, the self-induction voltage may break through the fifth MOS transistor Q4 to cause a circuit damage, the second diode D16 may absorb the self-induction voltage to protect the fifth MOS transistor Q4, and the circuit stability is improved, so as to better control the switching of the electromagnetic valve LS1 and improve the stability of water supply to a user; in order to improve the water supply efficiency, a booster pump is used for boosting during water supply, the water flow pressure is possibly high, the electromagnetic valve LS1 acts in a boosting state for a long time, the service life is shortened, the first RC circuit comprises a resistor R391 and a capacitor C332 which are connected in series, the first RC circuit is connected in parallel to two ends of the electromagnetic valve LS1, when the electromagnetic valve LS1 is sucked, the first RC circuit has no delay effect, when the electromagnetic valve LS1 is disconnected, the coil of the electromagnetic valve LS1 generates induced electromotive force through self inductance, the induced electromotive force is discharged through the first RC circuit, the current attenuation of the coil of the electromagnetic valve LS1 is slowed down, and therefore the electromagnetic valve LS1 is closed slowly, so that the electromagnetic valve LS1 is protected, the service life of a water supply module is further prolonged, meanwhile, the first RC circuit also has the function of resistance-capacitance absorption, sparks generated when the electromagnetic valve LS1 acts can be absorbed, and the interference on nearby circuits when the electromagnetic valve LS1 is switched on and off is reduced.
In an embodiment of the present invention, the ethernet communication module includes an ethernet conversion circuit, an isolation circuit, an ethernet interface circuit, and an electrostatic protection circuit, wherein an input end of the ethernet conversion circuit is connected to the main control module, an output end of the ethernet conversion circuit is connected to an input end of the ethernet interface circuit after being isolated by the isolation circuit, an output end of the ethernet interface circuit is adapted to be connected to the information acquisition module, and the electrostatic protection circuit is connected to an output end of the ethernet conversion circuit and is configured to protect the ethernet conversion circuit.
It should be noted that, as shown in fig. 8, the communication information of the main control module to the information acquisition module is converted into an ethernet communication signal through the ethernet conversion circuit, the ethernet communication signal is isolated by the isolation circuit and then output to the ethernet interface circuit, the isolation circuit can effectively improve the anti-interference capability of the main control module to the communication signal of the information acquisition module, so as to ensure the reliability of the communication signal, and to better supply water to the user, the electrostatic protection circuit is connected to the output end of the ethernet conversion circuit, and is used for preventing electrostatic or surge current, so as to protect the ethernet conversion circuit and the main control module at the front stage.
In an embodiment of the present invention, the water supply module further includes a 4G communication module, and the 4G communication module is connected to the main control module and is used for communication between the main control module and a mobile terminal of a manager.
It should be noted that, host system can be with the temperature of solar energy storage water tank and electrical heating storage water tank through 4G communication module, water level information and each user's water information transfer to administrator's mobile terminal, the administrator can see the data that needs in real time on mobile terminal's APP, and can be according to historical conditions, further confirm user's water demand, minimum water storage water level through APP adjustment water supply temperature threshold value or electrical heating storage water tank sends host system, adjust by host system, supply water for the user better.
Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the spirit and scope of the present disclosure, and these changes and modifications are intended to be within the scope of the present disclosure.
Claims (10)
1. An energy-conserving water supply control system based on solar energy, characterized by, includes: the water storage device, the user water tank, the water supply module and the information acquisition module are in communication connection with the water supply module, so as to transmit the collected user water tank and the setting information to the water supply module, the water storage device comprises a solar water storage tank and at least one electric heating water storage tank, the solar water storage tank and the electric heating water storage tank, the solar water storage tank and the user water tank, and the electric heating water storage tank and the user water tank are respectively connected through pipelines, electromagnetic valves are respectively arranged at the joints of the solar water storage tank and the electric heating water storage tank and the pipeline, the water supply module is respectively and electrically connected with each electromagnetic valve, so as to control the on-off of the electromagnetic valve, a heating device electrically connected with the water supply module is arranged in the electric heating water storage tank, and the solar water storage tank and the electric heating water storage tank are respectively internally provided with a detection sensing device electrically connected with the water supply module.
2. The solar-based energy-saving water supply control system according to claim 1, wherein the water supply module comprises a power supply module, a main control module, a solenoid valve management module, an ethernet communication module, a heating control module and an isolation conversion module, wherein a controlled end of the solenoid valve management module is connected with the main control module, an input end of the solenoid valve management module is connected with the power supply module, and an output end of the solenoid valve management module is respectively connected with each solenoid valve; the Ethernet communication module is connected with the main control module and used for communication between the main control module and the information acquisition module, the input end of the heating control module is connected with the main control module, the output end of the heating control module is connected with the heating device, the input end of the isolation conversion module is connected with the detection sensing device, and the output end of the isolation conversion module is connected with the main control module so as to transmit detection information of the water storage device to the main control module after isolation conversion.
3. The solar energy-saving water supply control system according to claim 2, wherein the detection sensing device comprises a temperature sensor and a water level sensor, the input end of the isolation conversion module is connected with the temperature sensor and the water level sensor respectively, and the output end of the isolation conversion module is connected with the main control module, so as to transmit the detected water level information and temperature information in the solar water storage tank and the electric heating water storage tank to the main control module after isolation conversion.
4. The solar energy-saving water supply control system according to claim 2, wherein the water supply module further comprises a booster pump driving circuit, the solar water storage tank and the electric heating water storage tank are respectively provided with a booster pump, the booster pump is connected with the pipeline, the controlled end of each booster pump driving circuit is connected with the main control module, and the output end of each booster pump driving circuit is connected with the corresponding booster pump so as to control the on-off of the booster pump.
5. The energy-saving water supply control system based on solar energy according to claim 4, wherein the booster pump driving circuit comprises four driving front-end circuits and an H bridge driving circuit, the H bridge driving circuit comprises four MOS tubes, wherein the source electrode of the first MOS tube is connected with a power supply, the drain electrode is connected with the first end of the booster pump, the source electrode of the second MOS tube is connected with a power supply, the drain electrode is connected with the second end of the booster pump, the source electrode of the third MOS tube is grounded, the drain electrode is connected with the first end of the booster pump, the source electrode of the fourth MOS tube is grounded, the drain electrode is connected with the second end of the booster pump, and the grid electrodes of the four MOS tubes are respectively connected with the main control module through the driving front-end circuits to receive the PWM signals sent by the main control module.
6. The solar-based energy-saving water supply control system according to claim 5, wherein the driving front-end circuit comprises an isolation amplifying circuit and a delay protection circuit, an input end of the isolation amplifying circuit is connected with the main control module and used for isolating and amplifying the PWM signal sent by the main control module, the delay protection circuit comprises a first diode and a first triode, a controlled end of the first triode is connected with an output end of the isolation amplifying circuit, an output end of the first triode is connected with a grid electrode of the MOS transistor and used for driving the MOS transistor and delaying the conduction of the MOS transistor, and the first diode is connected between the MOS transistor and the ground in parallel.
7. The solar-energy-saving water supply control system according to claim 4, wherein the electromagnetic valve management module comprises electromagnetic valve control circuits and position detection circuits, the controlled end of each electromagnetic valve control circuit is connected with the main control module, the output end of each electromagnetic valve control circuit is connected with the corresponding electromagnetic valve, the output end of each position detection circuit is connected with the main control module, and the input end of each position detection circuit is suitable for being connected with a position sensor arranged at the electromagnetic valve, so as to transmit the detected position information of the valve body of the corresponding electromagnetic valve to the main control module.
8. The solar-energy-saving water supply control system according to claim 7, wherein the electromagnetic valve control circuit comprises a fifth MOS (metal oxide semiconductor) tube, a second diode and a first RC (resistor-capacitor) circuit, the grid of the fifth MOS tube is connected with the main control module, the source of the fifth MOS tube is grounded, the drain of the fifth MOS tube is connected with the cathode of the electromagnetic valve, the anode of the electromagnetic valve is connected with the power module, the second diode is connected in parallel with two ends of the electromagnetic valve, and the first RC circuit is connected in parallel with two ends of the electromagnetic valve.
9. The solar energy-saving water supply control system according to claim 2, wherein the ethernet communication module comprises an ethernet conversion circuit, an isolation circuit, an ethernet interface circuit and an electrostatic protection circuit, an input end of the ethernet conversion circuit is connected to the main control module, an output end of the ethernet conversion circuit is isolated by the isolation circuit and then connected to an input end of the ethernet interface circuit, an output end of the ethernet interface circuit is adapted to be connected to the information acquisition module, and the electrostatic protection circuit is connected to an output end of the ethernet conversion circuit for protecting the ethernet conversion circuit.
10. The solar-energy-saving water supply control system according to claim 2, wherein the water supply module further comprises a 4G communication module, and the 4G communication module is connected with the main control module and used for communication between the main control module and the manager mobile terminal.
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