Novel photovoltaic solar direct-current efficient water heating method and device

Abstract

The invention relates to a novel photovoltaic solar direct-current efficient water heating method and device, and belongs to the technical field of solar water heating. Comprising a solar panel group, a controller, a storage battery, a hot water rod, a temperature sensor, a hot water tank, a battery electric quantity monitoring module, an inverter, a household appliance, a clock module and a management end, the solar panel group is formed by connecting a plurality of solar panels in series and in parallel, and a control switch is further connected between the controller and the inverter; a relay is further connected between the controller and the hot water rod, the battery electric quantity monitoring module is provided with a residual electric quantity threshold value, and the solar panel group is further electrically connected with a current monitoring module and a voltage monitoring module. Solar energy is converted into electric energy, hot water is preferentially used, water can be efficiently heated, meanwhile, when the converted electric energy is sufficient, power can be supplied to household appliances, the solar energy can be fully utilized, and the utilization rate is increased.

Description

Technical Field

[0001] The invention belongs to the technical field of solar water heating, and in particular relates to a novel photovoltaic solar direct current high-efficiency water heating method and equipment. Background Art

[0002] With the application of photovoltaic solar panels, photovoltaic solar water heating systems came into being. Photovoltaic solar water heating systems convert solar energy into electrical energy and then use electrical energy to heat water. Using solar energy to heat water makes full use of natural resources. At present, in order to make full use of solar energy, many residents have installed multiple solar panels on their roofs to fully convert solar energy into electrical energy, which is convenient for users to heat water for bathing. In the existing solar water heating system, when only solar energy is used to heat water, when there is sufficient sunshine or when the hot water time is short, there will be surplus solar energy, which cannot be fully utilized and cannot be fully utilized; and when solar energy is used to heat water and power household appliances, the power consumption is large. If there are continuous rainy days, the water cannot be heated, which causes inconvenience to users; therefore, the invention provides a new photovoltaic solar direct current high-efficiency water heating method and equipment to solve the above problems. Summary of the invention

[0003] In order to overcome the problems mentioned in the background technology, the present invention provides a novel photovoltaic solar direct current high-efficiency water heating method and equipment. The present invention converts solar energy into electrical energy, which is used for hot water first, can heat water efficiently, and when the converted electrical energy is sufficient, it can power household appliances, making full use of solar energy and improving the utilization rate.

[0004] To achieve the above purpose, the present invention is implemented through the following technical solutions: a new photovoltaic solar direct current high-efficiency hot water method and equipment includes a solar panel group 1, a controller 2, a battery 3, a hot water rod 4, a temperature sensor 5, a hot water tank 6, a battery power monitoring module 7, an inverter 8, a household appliance 9, a clock module 10 and a management end 11, the solar panel group 1 is composed of a plurality of solar panels connected in series and in parallel, the solar panel group 1 is electrically connected to the controller 2, the controller 2 is electrically connected to the battery 3, the hot water rod 4, the temperature sensor 5, the battery power monitoring module 7, the inverter 8 and the clock module 10, the battery power monitoring module 7 is also electrically connected to the battery 3, the inverter 8 is electrically connected to the household appliance 9, a control switch 12 is also connected between the controller 2 and the inverter 8, a relay 13 is also connected between the controller 2 and the hot water rod 4, the battery power monitoring module 7 is provided with a remaining power threshold, the solar panel group 1 is also electrically connected to a current monitoring module 14 and a voltage monitoring module 15, the controller 2 is wirelessly connected to the management end 11, and the management end 11 is a mobile phone APP.

[0005] Furthermore, the mobile phone APP is provided with a temperature setting module 16 for setting the heating temperature by month.

[0006] Furthermore, the mobile phone APP is also provided with a heating start time setting module 17 and a household appliance access time setting module 18.

[0007] Furthermore, the heating wire in the hot water rod 4 is U-shaped and is wound with bolts.

[0008] Beneficial effects of the present invention: The present invention converts solar energy into electrical energy, giving priority to hot water use, and can heat water efficiently. When the converted electrical energy is sufficient, it can power household appliances, making full use of solar energy. Through the management end, different heating temperatures can be set by month according to actual conditions, and the heating time can be adjusted, thereby saving electrical energy and improving utilization rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the system of the present invention.

[0010] Figure 2 It is a schematic diagram of the process of the present invention.

[0011] Figure numerals: solar panel group 1, controller 2, battery 3, hot water rod 4, temperature sensor 5, hot water tank 6, battery power monitoring module 7, inverter 8, household appliance 9, clock module 10, management terminal 11, control switch 12, relay 13, current monitoring module 14, voltage monitoring module 15, temperature setting module 16, heating start time setting module 17, household appliance access time setting module 18. DETAILED DESCRIPTION

[0012] In order to make the objectives, technical solutions and beneficial effects of the present invention more clear, the preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings to facilitate understanding by technicians.

[0013] like Figure 1-2The present invention discloses a novel photovoltaic solar direct current high-efficiency water heating method and device, the novel photovoltaic solar direct current high-efficiency water heating method and device comprises a solar panel group 1, a controller 2, a storage battery 3, a hot water rod 4, a temperature sensor 5, a hot water tank 6, a battery power monitoring module 7, an inverter 8, a household appliance 9, a clock module 10 and a management terminal 11, the hot water rod and the temperature sensor are installed in the hot water tank, the hot water rod is used to heat water, and the temperature sensor is used to monitor the temperature of water during the heating process, the solar panel group 1 is composed of a plurality of solar panels connected in series and in parallel, the solar panel group 1 comprises a plurality of parallel solar panel branches, and the solar panel branch is composed of a plurality of solar panels connected in series; the output current and voltage can be stabilized by the solar panel group, and the stability and reliability of the system are enhanced, the solar panel group 1 is electrically connected to the controller 2, the controller 2 is electrically connected to the storage battery 3, the hot water rod 4, the temperature sensor 5, the battery power monitoring module 7, the inverter 8 and the clock module 10, and the battery power monitoring module 7 is also electrically connected to the storage battery 3 The battery power monitoring module is a power monitoring chip used to monitor the power of the battery. The inverter 8 is electrically connected to the household appliance 9, and the household appliance is also connected to the mains. A master control switch is connected between the mains and the household appliance, and the master control switch is also electrically connected to the controller. A control switch 12 is also connected between the controller 2 and the inverter 8, and a relay 13 is also connected between the controller 2 and the hot water rod 4. The battery power monitoring module 7 is provided with a remaining power threshold, which can be set through the mobile phone APP of the management end. The solar panel group 1 is also electrically connected to a current monitoring module 14 and a voltage monitoring module 15. The current monitoring module is used to monitor the output current of the solar panel group, and the voltage monitoring module is used to monitor the output voltage of the solar panel group. The controller 2 is wirelessly connected to the management end 11, such as using one or more of WiFi, Bluetooth or 4G wireless connection. The management end 11 is a mobile phone APP that can receive data sent by the controller, such as the output current, voltage and remaining power of the battery of the solar panel group.

[0014] The mobile phone APP is provided with a temperature setting module 16 for setting the heating temperature by month; different months in a year have different temperatures, and the temperature of hot water required when using hot water is different. For example, the temperature is higher in summer from June to August, and the temperature of the required hot water is lower. Therefore, the time required for heating is short, the power consumption is less, and the remaining battery power is more; while the temperature is lower in late autumn or winter, the temperature of the required hot water is higher, the heating time is long, the power consumption is more, and the remaining battery power is less; through the temperature setting module, the user can set the hot water temperature of different months according to actual needs, and the user can divide the month range by himself, for example, November to February is the first month range, at this time the hot water temperature is set to the first temperature value; March to April is the second month range, at this time the hot water temperature is set to the second temperature value; May to August is the third month range, at this time the hot water temperature is set to the third temperature value; September to October is the fourth month range, at this time the hot water temperature is set to the fourth temperature value; the user can set it according to actual needs, meet the use needs and save energy, the clock module is a clock chip, which can provide real-time time for the system and is convenient for setting various times.

[0015] The mobile phone APP is also provided with a heating start time setting module 17 and a household appliance access time setting module 18; the heating start time setting module is used to set the start heating time of the hot water rod, that is, the time to heat the water before taking a bath, such as starting heating at 9 o'clock every night. At 9 o'clock every night, the hot water rod starts heating to heat the water to the required temperature; the household appliance access time setting module can be used to set the household appliance access time, which is the time when the water is no longer heated, such as 11 o'clock or 12 o'clock in the evening, when the bath is finished and no hot water is needed. At this time, the power monitoring module monitors the remaining power of the battery. When the remaining power is greater than the remaining power threshold, the control switch is closed by the controller, the main control switch is disconnected, and the household appliance is powered by the inverter. The power monitoring module continues to monitor the remaining power in real time. When the remaining power is equal to the remaining power threshold, the control switch is disconnected by the controller, the main control switch is closed, and the household appliance is powered by the main power. The remaining power threshold can be set to 40%-45% of the total storage capacity of the battery to avoid over-discharge of the battery. At the same time, if it is cloudy, water can also be heated.

[0016] The heating wire in the hot water rod 4 is U-shaped and bolted; the U-shaped heating wire has high conversion efficiency and long service life.

[0017] The specific trial steps of the present invention are as follows: Step S1: Use the mobile phone APP to set the hot water heating temperature, hot water stick heating start time, household appliance connection time and remaining power threshold corresponding to each month according to actual conditions; Step S2: When the hot water rod starts heating, the controller controls the hot water rod to heat, and the temperature sensor monitors the water temperature in real time during the heating process. When the water temperature reaches the set temperature, the hot water rod stops heating. During the time when the hot water rod starts heating and the time when the household appliance is connected, the heating rod can work multiple times and hot water can be used multiple times; Step S3: When the household appliance is connected, the power monitoring module monitors the remaining power of the battery and determines whether the current remaining power of the battery is greater than the remaining power threshold; Step S4: If the current remaining battery power is greater than the remaining power threshold, the control switch is closed through the controller, the main control switch is disconnected, and the household appliance is powered by the inverter. Otherwise, the household appliance cannot be powered; Step S5: The power monitoring module continues to monitor the remaining power in real time. When the remaining power is equal to the remaining power threshold, the control switch is disconnected through the controller, the main control switch is closed, and the household appliance is powered by the mains.

[0018] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A novel photovoltaic solar direct current high-efficiency water heating method and equipment, characterized in that: The novel photovoltaic solar direct current high-efficiency hot water method and device comprises a solar panel group (1), a controller (2), a storage battery (3), a hot water rod (4), a temperature sensor (5), a hot water tank (6), a battery power monitoring module (7), an inverter (8), a household appliance (9), a clock module (10) and a management terminal (11), wherein the solar panel group (1) is composed of a plurality of solar panels connected in series and in parallel, the solar panel group (1) is electrically connected to the controller (2), and the controller (2) is connected to the storage battery (3), the hot water rod (4), the temperature sensor (5), the battery power monitoring module (7), the inverter (8) and the clock module. The module (10) is electrically connected, the battery power monitoring module (7) is also electrically connected to the storage battery (3), the inverter (8) is electrically connected to the household appliance (9), a control switch (12) is also connected between the controller (2) and the inverter (8), a relay (13) is also connected between the controller (2) and the hot water rod (4), the battery power monitoring module (7) is provided with a remaining power threshold, the solar panel group (1) is also electrically connected to a current monitoring module (14) and a voltage monitoring module (15), the controller (2) is wirelessly connected to the management end (11), and the management end (11) is a mobile phone APP.

2. A novel photovoltaic solar direct current high-efficiency water heating method and device according to claim 1, characterized in that: The mobile phone APP is provided with a temperature setting module (16) capable of setting the heating temperature according to the month.

3. A novel photovoltaic solar direct current high-efficiency water heating method and device according to claim 1, characterized in that: The mobile phone APP is also provided with a heating start time setting module (17) and a household appliance access time setting module (18).

4. A novel photovoltaic solar direct current high-efficiency water heating method and device according to claim 1, characterized in that: The heating wire in the hot water rod (4) is U-shaped and is bolt-wound.

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