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CN111121311B - Full-automatic central hot water system - Google Patents

Full-automatic central hot water system Download PDF

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CN111121311B
CN111121311B CN201911359482.9A CN201911359482A CN111121311B CN 111121311 B CN111121311 B CN 111121311B CN 201911359482 A CN201911359482 A CN 201911359482A CN 111121311 B CN111121311 B CN 111121311B
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resistor
capacitor
triode
hot water
water system
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CN111121311A (en
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陈�胜
陈贤森
江明威
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Guangdong Liwang Technology Co.,Ltd.
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Guangzhou Liwang Technology Co ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24SSOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S20/00Solar heat collectors specially adapted for particular uses or environments
    • F24S20/40Solar heat collectors combined with other heat sources, e.g. using electrical heating or heat from ambient air
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24SSOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S50/00Arrangements for controlling solar heat collectors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24SSOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S60/00Arrangements for storing heat collected by solar heat collectors
    • F24S60/30Arrangements for storing heat collected by solar heat collectors storing heat in liquids
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/02Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00Circuit arrangements for AC mains or AC distribution networks
    • 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

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
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Abstract

本发明涉及热水系统领域,公开了一种全自动化中央热水系统,包括集热单元、储热单元、辅助加热单元、控制单元和供电单元,集热单元包括若干个并联连接的太阳能集热器,第一温度传感器、第二温度传感器、液位传感器、进水控制阀、第一开关、第二开关、启动开关和供电单元均与控制单元连接;供电单元包括电压输入端、变压器、整流桥、第一电容、第一发光二极管、第一三极管、第二发光二极管、第二三极管、第一电阻、第三三极管、第二电阻、第二电容、第一二极管、第三电阻、第三电容、第一电位器、第四电容和电压输出端。实施本发明的全自动化中央热水系统,具有以下有益效果:电路结构较为简单、成本较低、方便维护、电路的安全性和可靠性较高。

Figure 201911359482

The invention relates to the field of hot water systems, and discloses a fully automated central hot water system, comprising a heat collection unit, a heat storage unit, an auxiliary heating unit, a control unit and a power supply unit, and the heat collection unit includes a plurality of solar heat collection units connected in parallel The first temperature sensor, the second temperature sensor, the liquid level sensor, the water inlet control valve, the first switch, the second switch, the start switch and the power supply unit are all connected to the control unit; the power supply unit includes a voltage input terminal, a transformer, a rectifier Bridge, First Capacitor, First LED, First Triode, Second LED, Second Triode, First Resistor, Third Triode, Second Resistor, Second Capacitor, First Diode tube, third resistor, third capacitor, first potentiometer, fourth capacitor and voltage output terminal. Implementing the fully automatic central hot water system of the present invention has the following beneficial effects: the circuit structure is relatively simple, the cost is low, the maintenance is convenient, and the safety and reliability of the circuit are high.

Figure 201911359482

Description

Full-automatic central hot water system
Technical Field
The invention relates to the field of hot water systems, in particular to a full-automatic central hot water system.
Background
In recent years, the forms of environmental pollution and energy crisis are becoming more severe, and clean energy such as solar energy and the like are being widely used. Solar energy is a renewable energy source and has no pollution, and common applications such as solar water heaters. In the prior art, some central hot water systems make full use of solar energy, have high solar energy utilization rate and large water storage capacity and can meet larger water demand. The auxiliary heating of the electric heating boiler is utilized, the water using requirements in rainy days and winter are met, and the solar-electric combined mode is adopted to provide hot water in all weather. The relevant information is monitored in real time through the intelligent control of a microcomputer, and the operation is simple and convenient. Fig. 1 is a schematic circuit diagram of a power supply part in a conventional central hot water system, and it can be seen from fig. 1 that the power supply part in the conventional central hot water system uses many components, has a complex circuit structure and high hardware cost, and is inconvenient to maintain. In addition, since the power supply part in the conventional central hot water system lacks the corresponding circuit protection function, for example: the safety and reliability of the circuit are poor due to the lack of the current-limiting protection function.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a fully automated central hot water system with simple circuit structure, low cost, convenient maintenance, and high circuit safety and reliability, aiming at the above defects of the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: the full-automatic central hot water system comprises a heat collection unit, a heat storage unit, an auxiliary heating unit, a control unit and a power supply unit, wherein the heat collection unit is connected with the auxiliary heating unit through the heat storage unit, the heat collection unit, the heat storage unit and the auxiliary heating unit are all connected with the control unit, the heat collection unit comprises a plurality of solar heat collectors connected in parallel, a first temperature sensor is installed on each solar heat collector, the heat storage unit comprises a water storage tank and a heat collection circulating pump, a water inlet control valve is arranged on each water storage tank, a second temperature sensor and a liquid level sensor are installed in each water storage tank, a first switch is set on each heat collection circulating pump, each auxiliary heating unit comprises an electric heating boiler and a boiler circulating pump, a starting switch is arranged on each electric heating boiler circulating pump, a second switch is arranged on each boiler circulating pump, the water storage tank is connected with the solar thermal collector through the thermal collection circulating pump, the electric heating boiler is connected with the water storage tank through the boiler circulating pump, and the first temperature sensor, the second temperature sensor, the liquid level sensor, the water inlet control valve, the first switch, the second switch, the starting switch and the power supply unit are all connected with the control unit;
the power supply unit comprises a voltage input end, a transformer, a rectifier bridge, a first capacitor, a first light emitting diode, a first triode, a second light emitting diode, a second triode, a first resistor, a third triode, a second resistor, a second capacitor, a first diode, a third resistor, a third capacitor, a first potentiometer, a fourth capacitor and a voltage output end, wherein one end of the voltage input end is connected with one end of a primary coil of the transformer, the other end of the voltage input end is connected with the other end of the primary coil of the transformer, one end of a secondary coil of the transformer is connected with one alternating current input end of the rectifier bridge, the other end of the secondary coil of the transformer is connected with the other alternating current input end of the rectifier bridge, one direct current output end of the rectifier bridge is respectively connected with one end of the first capacitor, the anode of the first light emitting diode and the emitter of the first triode, the base of the first triode is connected with the anode of the second light-emitting diode, the cathode of the second light-emitting diode is respectively connected with the collector of the second triode and one end of the second capacitor, the collector of the first triode is connected with one end of the first resistor and the anode of the first diode, the base of the second triode is respectively connected with the other end of the first resistor and the collector of the third triode, the cathode of the first diode is respectively connected with one end of the third resistor, one end of the fourth capacitor and the voltage output end, the base of the third triode is respectively connected with the other end of the second capacitor, the other end of the third resistor, one end of the third capacitor, one fixed end and sliding end of the first potentiometer, and the other direct current output end of the rectifier bridge is respectively connected with the other end of the first capacitor, the collector of the second capacitor, the collector of the third resistor, one end of the third capacitor, one fixed end and the sliding end of the first potentiometer, and the other direct current output end of the rectifier bridge, The cathode of the first light emitting diode, the emitter of the second triode, the emitter of the third triode and one end of the second resistor are connected, and the other end of the second resistor is connected with the other end of the third capacitor, the other end of the first potentiometer and the other end of the fourth capacitor respectively.
In the fully automatic central hot water system, the type of the first diode is S-272T.
In the fully automatic central hot water system, the power supply unit further comprises a fifth resistor, one end of the fifth resistor is connected with the emitter of the second triode, and the other end of the fifth resistor is connected with the emitter of the third triode.
In the fully automatic central hot water system of the present invention, the resistance value of the fifth resistor is 45k Ω.
In the fully automatic central hot water system, the power supply unit further comprises a fourth resistor, one end of the fourth resistor is connected with one end of the first capacitor, and the other end of the fourth resistor is connected with the emitter of the first triode.
In the fully automatic central hot water system of the present invention, the resistance value of the fourth resistor is 36k Ω.
In the fully automatic central hot water system of the invention, the first triode is a PNP type triode.
In the fully automatic central hot water system of the invention, the second triode is an NPN type triode.
In the fully automatic central hot water system of the present invention, the third triode is an NPN type triode.
The implementation of the full-automatic central hot water system has the following beneficial effects: the heat collecting unit, the heat storage unit, the auxiliary heating unit, the control unit and the power supply unit are arranged, the power supply unit comprises a voltage input end, a transformer, a rectifier bridge, a first capacitor, a first light emitting diode, a first triode, a second light emitting diode, a second triode, a first resistor, a third triode, a second resistor, a second capacitor, a first diode, a third resistor, a third capacitor, a first potentiometer, a fourth capacitor and a voltage output end, compared with a power supply part in a traditional central hot water system, the power supply unit has fewer components and parts, so that the hardware cost can be reduced, and in addition, the first diode is used for current limiting protection, so that the circuit structure is simple, the cost is low, the maintenance is convenient, and the safety and the reliability of the circuit are high.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic circuit diagram of the power supply portion of a conventional central hot water system;
FIG. 2 is a schematic diagram of an embodiment of the fully automated central hot water system of the present invention;
FIG. 3 is a block diagram of the fully automated central hot water system according to the embodiment;
fig. 4 is a schematic circuit diagram of the power supply unit in the embodiment.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the embodiment of the fully automated central hot water system of the present invention, a schematic structural diagram of the fully automated central hot water system is shown in fig. 2. Fig. 3 is a block diagram of the fully automated central hot water system according to the present embodiment. As shown in fig. 2 and 3, the full-automatic central hot water system comprises a heat collecting unit 1, a heat storage unit 2, an auxiliary heating unit 3, a control unit 4 and a power supply unit 5, wherein the heat collecting unit 1 is connected with the auxiliary heating unit 3 through the heat storage unit 2, the heat collecting unit 1, the heat storage unit 2 and the auxiliary heating unit 3 are all connected with the control unit 4, and the heat collecting unit 1 comprises a plurality of solar heat collectors connected in parallel, so that the running resistance of a pipeline can be reduced. A first temperature sensor 11 is mounted on the solar collector.
The heat storage unit 2 comprises a water storage tank and a heat collection circulating pump, wherein a water inlet control valve 21 is arranged on the water storage tank, a second temperature sensor 22 and a liquid level sensor 23 are installed in the water storage tank, a first switch 24 is arranged on the heat collection circulating pump, the water level in the water storage tank is measured through the liquid level sensor 23, when the water level in the water storage tank is lower than a certain value, the water inlet control valve 21 is opened, and the water storage tank starts to supply water; when the water level in the water storage tank is higher than a certain value, the water inlet control valve 21 is closed, and the water storage tank stops water supply.
The auxiliary heating unit 3 comprises an electric heating boiler and a boiler circulating pump, a starting switch 31 is arranged on the electric heating boiler, a second switch 32 is arranged on the boiler circulating pump, the water storage tank is connected with a solar heat collector through a heat collecting circulating pump, the electric heating boiler is connected with the water storage tank through the boiler circulating pump, and a first temperature sensor 11, a second temperature sensor 22, a liquid level sensor 23, a water inlet control valve 21, a first switch 24, a second switch 32, the starting switch 31 and a power supply unit 5 are all connected with the control unit 4.
The power supply unit 5 is used for displaying data information related to the solar central hot water system and controlling the related units of the system. The first temperature sensor 11 is used for testing the temperature of the solar thermal collector, the second temperature sensor 22 is used for testing the water temperature in the water storage tank, and the first switch 24 is used for controlling the on-off of the thermal collection circulating pump. When the temperature of the solar heat collector is 8 ℃ higher than the water temperature in the water storage tank, the first switch 24 is turned on, the heat collection circulating pump starts to work, and heat circulation is formed between the solar water heater and the water storage tank; when the temperature of the solar heat collector is 5 ℃ higher than the temperature of water in the water storage tank, the first switch 24 is closed, and the heat circulation is stopped. The mode can fully and effectively utilize the heat of the solar energy and improve the utilization efficiency of the solar energy.
The second temperature sensor 22 is used for testing the water temperature in the water storage tank, the starting switch 31 is used for controlling the start and stop of the electric heating furnace, and the second switch 32 is used for controlling the on and off of the boiler circulating pump. When the water temperature in the water storage tank is lower than a certain value, the starting switch 31 and the second switch 32 are turned on, the electric boiler and the boiler circulating pump start to work, and heat circulation is formed between the electric boiler and the water storage tank; when the water temperature in the water storage tank is higher than a certain value, the starting switch 31 and the second switch 32 are turned off, the electric boiler and the boiler circulating pump stop working, and the heat circulation stops. The auxiliary heating function of the electric boiler can meet the water demand in winter and rainy days, and all-weather hot water supply is realized.
Fig. 4 is a schematic circuit diagram of a power supply unit in this embodiment, in fig. 4, the power supply unit 5 includes a voltage input terminal Vin, a transformer T, a rectifier bridge Z, a first capacitor C1, a first light emitting diode LED1, a first transistor Q1, a second light emitting diode LED2, a second transistor Q2, a first resistor R1, a third transistor Q3, a second resistor R2, a second capacitor C2, a first diode D1, a third resistor R3, a third capacitor C3, a first potentiometer RP4, a fourth capacitor C4, and a voltage output terminal Vo, wherein one end of the voltage input terminal Vin is connected to one end of a primary winding of the transformer T, the other end of the voltage input terminal Vin is connected to the other end of the primary winding of the transformer T, one end of a secondary winding of the transformer T is connected to one ac input terminal of the rectifier bridge Z, the other end of the secondary winding of the transformer T is connected to the other ac input terminal of the rectifier bridge Z, a direct current output end of the rectifier bridge Z is respectively connected with one end of a first capacitor C1, an anode of the first light emitting diode LED1 and an emitter of a first triode Q1, a base of the first triode Q1 is connected with an anode of a second light emitting diode LED2, a cathode of the second light emitting diode LED2 is respectively connected with a collector of a second triode Q2 and one end of a second capacitor C2, a collector of the first triode Q1 is connected with one end of a first resistor R1 and an anode of a first diode D1, a base of a second triode Q2 is respectively connected with the other end of the first resistor R1 and a collector of a third triode Q3, a cathode of the first diode D1 is respectively connected with one end of a third resistor R3, one end of a fourth capacitor C4 and a voltage output end Vo, a base of a third triode Q3 is respectively connected with the other end of the second capacitor C2, the other end of the third resistor R3, one end of the third capacitor C3, one end of the first RP 3, a fixed end of the first capacitor RP 9634 and a fixed end of a sliding resistor R4, the other direct current output end of the rectifier bridge Z is respectively connected with the other end of the first capacitor C1, the cathode of the first light emitting diode LED1, the emitter of the second triode Q2, the emitter of the third triode Q3 and one end of the second resistor R2, and the other end of the second resistor R2 is respectively connected with the other end of the third capacitor C3, the other end of the first potentiometer RP4 and the other end of the fourth capacitor C4.
Compared with a power supply part in a traditional central hot water system, the power supply unit 5 has the advantages of fewer used components, simpler circuit structure and convenience in maintenance, and can reduce the hardware cost due to the fact that some components are saved. In addition, the first diode D1 is a current limiting diode for current limiting protection. The current limiting protection principle is as follows: when the current of the branch in which the first diode D1 is located is large, the current of the branch in which the first diode D1 is located can be reduced by the first diode D1, so that the branch can be kept in a normal operating state, and the components in the circuit cannot be burnt out due to the large current, so that the safety and reliability of the circuit are high. It should be noted that in the present embodiment, the first diode D1 has a model number S-272T. Of course, in practical applications, the first diode D1 may also be another type of diode with the same function.
In this embodiment, the first transistor Q1 is a PNP transistor, the second transistor Q2 is an NPN transistor, and the third transistor Q3 is an NPN transistor. Certainly, in practical applications, the first transistor Q1 may also be an NPN-type transistor, and the second transistor Q2 and the third transistor Q3 may also be PNP-type transistors, but the structure of the circuit is also changed accordingly.
The working principle of the power supply unit 5 is as follows: a voltage input end Vin is transformed by a transformer T and rectified by a rectifier bridge Z, a first capacitor C1 filters the voltage to be converted into direct current, a first light-emitting diode LED1 is a power indicator, a second light-emitting diode LED2 is a work indicator, and a first triode Q1 is a work control triode and works in a switch state; the second triode Q2, the third triode Q3 and the second capacitor C2 form a one-shot trigger, the third resistor R3 and the first potentiometer RP4 form a voltage-limiting sampling circuit, and the second resistor R2 is a current-limiting sampling resistor.
Standby state: when the power supply is switched on, if the voltage output end Vo is not connected with the load, the second triode Q2 is cut off due to no base voltage, the first triode Q1 is also cut off, no voltage is output, and only the first light-emitting diode LED1 emits light at the moment.
And (3) a voltage stabilizing process: when the voltage output end Vo is connected with a load, the first triode Q1 is rapidly conducted, and the voltage of the voltage output end Vo is increased; since the second capacitor C2 is a positive feedback function, the circuit state quickly reaches steady state. At this time, the first transistor Q1 and the second transistor Q2 are turned on, the third transistor Q3 is turned off, power is supplied to the load, and the second light emitting diode LED2 emits light.
If the current of the voltage output end Vo is larger than the limit value, the voltage at the two ends of the second resistor R2 is increased, the BE interelectrode voltage of the third triode Q3 is higher than the dead zone voltage, the state of the monostable trigger is triggered, the third triode Q3 is conducted, the first triode Q1 and the second triode Q2 are cut off, and the voltage output end Vo stops supplying power; after the normal state is recovered, the monostable trigger automatically resets and enters a voltage stabilization working state again.
In this embodiment, the power supply unit 5 further includes a fifth resistor R5, one end of the fifth resistor R5 is connected to the emitter of the second transistor Q2, and the other end of the fifth resistor R5 is connected to the emitter of the third transistor Q3. The fifth resistor R5 is a current limiting resistor, and is used for current limiting protection of the emitter current of the second transistor Q2. The current limiting protection principle is as follows: when the emitter current of the second triode Q2 is large, the emitter current of the second triode Q2 can be reduced by the fifth resistor R5 to keep the second triode Q2 in a normal working state, so that the elements in the circuit are not burnt out due to the large current, and the safety and reliability of the circuit are further enhanced. It should be noted that, in the present embodiment, the resistance of the fifth resistor R5 is 45k Ω. Of course, in practical applications, the resistance of the fifth resistor R5 may be increased or decreased according to specific situations.
In this embodiment, the power supply unit 5 further includes a fourth resistor R6, one end of the fourth resistor R6 is connected to one end of the first capacitor C1, and the other end of the fourth resistor R6 is connected to the emitter of the first transistor Q1. The fourth resistor R6 is a current limiting resistor, and is used for current limiting protection of the emitter current of the first transistor Q1. The current limiting protection principle is as follows: when the emitter current of the first triode Q1 is large, the fourth resistor R6 can reduce the emitter current of the first triode Q1 to keep the first triode Q1 in a normal working state, so that the elements in the circuit are not burnt out due to the large current, and the safety and reliability of the circuit are further enhanced. It should be noted that, in the present embodiment, the resistance of the fourth resistor R6 is 36k Ω. Of course, in practical applications, the resistance of the fourth resistor R6 may be increased or decreased according to specific situations.
In a word, in this embodiment, compared with the power supply part in the traditional central hot water system, the power supply unit 5 has fewer used components, simpler circuit structure and convenient maintenance, and can reduce the hardware cost due to saving some components. In addition, since the power supply unit 5 is provided with a current limiting diode, the safety and reliability of the circuit are high.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (9)

1. A full-automatic central hot water system is characterized by comprising a heat collection unit, a heat storage unit, an auxiliary heating unit, a control unit and a power supply unit, wherein the heat collection unit is connected with the auxiliary heating unit through the heat storage unit, the heat collection unit, the heat storage unit and the auxiliary heating unit are all connected with the control unit, the heat collection unit comprises a plurality of solar heat collectors connected in parallel, a first temperature sensor is installed on each solar heat collector, each heat storage unit comprises a water storage tank and a heat collection circulating pump, a water inlet control valve is arranged on each water storage tank, a second temperature sensor and a liquid level sensor are installed in each water storage tank, a first switch is set on each heat collection circulating pump, each auxiliary heating unit comprises an electric heating boiler and a boiler circulating pump, a starting switch is arranged on each electric heating boiler, a second switch is arranged on each boiler circulating pump, the water storage tank is connected with the solar thermal collector through the thermal collection circulating pump, the electric heating boiler is connected with the water storage tank through the boiler circulating pump, and the first temperature sensor, the second temperature sensor, the liquid level sensor, the water inlet control valve, the first switch, the second switch, the starting switch and the power supply unit are all connected with the control unit;
the power supply unit comprises a voltage input end, a transformer, a rectifier bridge, a first capacitor, a first light emitting diode, a first triode, a second light emitting diode, a second triode, a first resistor, a third triode, a second resistor, a second capacitor, a first diode, a third resistor, a third capacitor, a first potentiometer, a fourth capacitor and a voltage output end, wherein one end of the voltage input end is connected with one end of a primary coil of the transformer, the other end of the voltage input end is connected with the other end of the primary coil of the transformer, one end of a secondary coil of the transformer is connected with one alternating current input end of the rectifier bridge, the other end of the secondary coil of the transformer is connected with the other alternating current input end of the rectifier bridge, one direct current output end of the rectifier bridge is respectively connected with one end of the first capacitor, the anode of the first light emitting diode and the emitter of the first triode, the base of the first triode is connected with the anode of the second light-emitting diode, the cathode of the second light-emitting diode is respectively connected with the collector of the second triode and one end of the second capacitor, the collector of the first triode is connected with one end of the first resistor and the anode of the first diode, the base of the second triode is respectively connected with the other end of the first resistor and the collector of the third triode, the cathode of the first diode is respectively connected with one end of the third resistor, one end of the fourth capacitor and the voltage output end, the base of the third triode is respectively connected with the other end of the second capacitor, the other end of the third resistor, one end of the third capacitor, one fixed end and sliding end of the first potentiometer, and the other direct current output end of the rectifier bridge is respectively connected with the other end of the first capacitor, the collector of the second capacitor, the collector of the third resistor, one end of the third capacitor, one fixed end and the sliding end of the first potentiometer, and the other direct current output end of the rectifier bridge, The cathode of the first light emitting diode, the emitter of the second triode, the emitter of the third triode and one end of the second resistor are connected, and the other end of the second resistor is connected with the other end of the third capacitor, the other end of the first potentiometer and the other end of the fourth capacitor respectively.
2. The fully automated central hot water system according to claim 1, wherein the first diode is of type S-272T.
3. The fully automated central hot water system according to claim 1, wherein the power supply unit further comprises a fifth resistor, one end of the fifth resistor is connected to the emitter of the second transistor, and the other end of the fifth resistor is connected to the emitter of the third transistor.
4. The fully automated central hot water system according to claim 3, wherein the resistance value of the fifth resistor is 45k Ω.
5. The fully automated central hot water system according to claim 1, wherein the power supply unit further comprises a fourth resistor, one end of the fourth resistor is connected to one end of the first capacitor, and the other end of the fourth resistor is connected to an emitter of the first triode.
6. The fully automated central hot water system according to claim 5, wherein the fourth resistor has a resistance of 36k Ω.
7. The fully automated central hot water system according to any one of claims 1 to 6, wherein the first transistor is a PNP transistor.
8. The fully automated central hot water system according to any one of claims 1 to 6, wherein the second transistor is an NPN transistor.
9. The fully automated central hot water system according to any one of claims 1 to 6, wherein the third transistor is an NPN transistor.
CN201911359482.9A 2019-12-25 2019-12-25 Full-automatic central hot water system Active CN111121311B (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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WO2017089468A1 (en) * 2015-11-25 2017-06-01 Hps Home Power Solutions Gmbh Domestic energy generation installation and operating method for operating a domestic energy generation installation
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