JP2014228268A - Water heater formed by integrating solar heat and solar power generation - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water heater of a hot water storage tank which does not subject DC power from solar power generation to DC/AC conversion, does not require complicated and expensive equipment for electric circuit control, etc., takes in energy by integrating solar heat and solar power generation and, further, integrates solar heat and solar power generation.SOLUTION: A panel 1 formed by integrating solar heat and solar power generation takes in solar heat radiated by solar light and electricity obtained by solar power generation at the same time, supplies heat of solar light and DC power of solar light to water in a hot water storage tank 19 and heats water. Heat transfer of solar light heat is performed by circulating heat transfer medium of liquid in a pipeline and water in the hot water storage tank is kept warm. On the other hand, DC electric current from solar power generation is not subjected to DC/AC conversion, is directly joined to a heating bar in the hot water storage tank and keeps water in the hot water storage tank warm. Further, when there is no irradiation of solar light, commercial power is used and water in the same hot water storage tank is kept warm.

Description

The present invention relates to a water heater using solar heat from solar energy and solar power generation.

There is known a solar water heater that uses solar heat and solar power simultaneously (see Patent Document 1 or 2, 3).

However, these types of devices only integrate a solar power generation panel and solar heat collection, and heating in a hot water tank that integrates electric power and heat from sunlight has not been realized. . Also, in the use of solar power generation, the battery is mainly used for storage, and then power is supplied after the voltage is increased through a method of supplying power by conversion to AC with an inverter or AC conversion with an inverter. It is a method to do. Both of these methods are expensive and have limitations in use.

At present, the use of solar water heaters for solar energy is broadly divided into two types: vacuum tube water heaters and flat water heaters. Vacuum tube water heaters are complex to install and have various unsafe elements. Flat water heaters have low heat collection efficiency and can hardly be used especially in winter.

JP 2000-55479 A Japanese Patent Laid-Open No. 2000-244103 JP 2012-11768 A

In view of the problems of conventional water heaters using solar heat and solar power generation, by implementing the present invention, conversion of power storage batteries and DC / AC inverters becomes unnecessary, and direct current power from solar power generation remains unchanged. While heating water, heating by solar heat can be realized in the same hot water tank. Not only panels that integrate solar heat collection and solar cell modules, but also hot water storage tanks that are heated by solar heat and solar power, are easy to install, have low manufacturing costs, and are small in various environmental conditions. Can be installed in a space.

The present invention combines a panel unit in which solar heat and solar power generation are integrated in a series and parallel combination connection method, and the panel in which the combined solar heat and solar power generation is integrated is a matrix arrangement combination. By forming and irradiating with sunlight, heat and high direct current and voltage can be efficiently obtained.

In the present invention, the photothermal part of the solar heat collecting unit adopts the pipe entrance / exit part of each panel unit in which solar heat and solar power generation are integrated in a series and parallel combination method, so the photothermal pipe is formed in a net shape, The temperature of the liquid medium that acts as a mediator for conducting heat can be increased by the irradiation of sunlight.

The present invention adopts a spiral pipe winding design with the inner can as the axis outside the inner can of the hot water tank, causing the heat conduction medium to flow in the spiral pipe, and from the outer wall of the inner can of the hot water tank, The water in the inner can of the hot water tank is heated and the temperature rises due to heat conduction that permeates the water.

The present invention is connected to a solar power generation section of a panel in which solar heat and solar power generation are integrated with a DC power heating rod and an electric wire, and a direct current generated from sunlight flows to the heating rod, Heat the water in the can.

The present invention provides use of a commercial power source as an auxiliary power source, and can quickly heat water even in sunlight-weak weather.

In the present invention, a controller is installed in an electric circuit to control heating and water temperature by solar heat and solar electricity.

As described above, the solar heat portion of the present invention can efficiently collect heat by irradiation of sunlight from a joint structure in which heat flow pipes are used in series and in parallel. The thermal energy causes the heat transfer medium in the pipe to flow quickly and quickly raise the water temperature in the hot water tank.

The solar power generation part of the present invention takes the generated direct current power directly into the heating rod in the hot water tank, and can convert the power from solar power generation into heat without the need for conversion of the DC / AC inverter, and the temperature of the water. To raise.

In the present invention, heating by solar heat, heating by solar power generation, and heating by commercial power are performed in the same hot water storage tank, and convenience can be provided for daily life.

The schematic of the whole structure of this invention. The unit of the panel which integrated the solar heat and photovoltaic power generation of this invention. The connection of the matrix arrangement | sequence which connected the unit of the panel which integrated the solar heat of this invention, and solar power generation, and solar heat piping. The external appearance structural drawing of the panel back surface which integrated the solar heat and photovoltaic power generation of this invention. The structure figure of the sealing lid in the back surface of the panel which integrated the solar heat of this invention, and photovoltaic power generation, and a back surface inside. FIG. 2 is an internal / external structure diagram of the back side of a panel in which solar heat and solar power generation of the present invention are integrated. The front view of the back surface of the panel which integrated the solar heat and photovoltaic power generation of this invention. The inside and outside structural drawing of the hot water storage tank which integrated the solar heat and photovoltaic power generation of this invention.

FIG. 1 shows an overall schematic configuration of a panel in which solar heat and solar power generation are integrated and an integrated water heater according to the present invention. This structure includes, as main parts, a panel in which solar heat and solar power generation shown in FIG. 2 are integrated, and a heated hot water tank in which solar heat and solar power generation shown in FIG. 7 are integrated.

In order to conduct solar heat from the integrated panel to the water in the hot water tank, the metal conductor U-type or S-type annular pipe 24 shown in FIG. 5 and the pump 11 for circulating the heat conduction medium shown in FIG. Or the helical piping 16 of the hot water storage tank outer wall which sealed and thermally insulated the heat shown in FIG. 7 is comprised as a main part.

On the other hand, in order to heat the water in the hot water tank with solar power from the integrated panel, the metal conductor 6 shown in FIG. 1, the electric circuit controller 10, and the electric heating rod 14 inside the hot water tank that is hermetically sealed are mainly configured. Has been.

Further, in consideration of the weather in which sunlight cannot be used, in order to use commercial power as a supplement, the power supply 20 shown in FIG.

In the overall structural diagram of FIG. 1 described above, the heat collected from a panel in which solar heat and solar power generation are integrated warms the heat conduction medium, and the heat conduction medium is converted into a metal conductor U type or S type by the pump 11. It flows in the annular pipe 24 and is conducted to the spiral pipe 16 outside the canister in the hot water storage tank with heat sealed. The pump 11 causes the heat transfer medium to circulate, and the metal spiral pipe 16 conducts heat to the water in the hot water tank, and the heat can be kept by the pump 11 even after the temperature of the water rises. On the other hand, in a panel in which solar heat and solar power generation are integrated, the electric power generated by solar power generation is conducted through the metal conductor 6 to the electric heating rod 14 inside the heat-sealed hot water storage tank, and the electric heating rod is heated by the current flow. And gradually increase the water temperature in the hot water tank. And the heat from both solar heat and solar power simultaneously raises the temperature of the water at a high speed and provides it for the demands of daily life.

FIG. 2 is a panel unit in which solar heat and photovoltaic power generation extracted from the overall structural diagram of FIG. 1 are integrated. After the units are connected in series and in parallel, a film (for example, EVA), low iron oxide glass The combination panel shown in FIG. 3 is formed through a heating layer such as TPT or TPE. The TPT or TPE film recommends the use of a transparent film because it is easy to transmit solar energy irradiation. In order to transmit a large amount of irradiation energy to the panel, the heat absorption of light heat in the panel is a U-shaped pipe as shown in FIG. 24 to absorb more heat. The panel is fixed to the panel housing 1 and is convenient for installation. This will prevent impact from external forces and prevent damage to the entire panel device.

Further, in FIG. 2, the entrance / exit 4 or 7 of the solar heat conduction pipe of the panel is installed on the same side as the casing 1 in order to easily connect between the solar heat conduction pipes. In order to form the panel unit in a matrix connection, the solar power connecting line positive / negative plug 6a (6b) in the panel is installed on the same side as the electric wire hole 5 of the panel.

FIG. 3 shows a structure in which solar panel heat can quickly rise in the temperature of the liquid conductive heat medium inside the conductive pipe 3 by using the panel units connected in series and parallel.

  FIG. 4 shows a back surface structure of a panel in which solar heat and solar power are integrated. The casing 1 and the back cover 22 of the panel are fixed by a back cover screw 23c and sealed, so that Stop heat escape.

FIG. 5 shows a structure in which the back surface of the panel shown in FIG. 4 is disassembled. The back cover 22 is fixed together by a back cover screw hole 23b and a back cover screw 23c. The photothermal absorption metal conductor U-type or S-type annular tube 24 in the panel strongly adheres with a film film such as TPT or TPE, and absorbs a large amount of solar energy heat irradiated from the front.

FIG. 6 shows the internal structure of the structure shown in FIG. In the panel of the photothermal absorption metal conductor U-type or S-type annular tube 24 in the panel, the conduction heat liquid medium flows and is conducted through the solar heat conduction pipe entrance 4 and the solar heat conduction pipe entrance 7. Absorbs heat. The electric power connection box for solar power is strongly adhered and fixed to the viscous back plate, and the connection electric wire 6 is passed through the electric wire passage hole 5 shown in FIG.

FIG. 7 is a front view of the back surface of a panel in which solar heat and solar power generation are integrated.

FIG. 8 is a structural diagram of a hot water tank in which solar heat extracted from the overall structural diagram of FIG. 1 and solar power generation are integrated. Between the inner can 19 of the hot water tank and the outer wall of the hot water tank, it is filled with a foam insulation so as not to lose heat. During operation, water enters from the hot water tank inlet 15 and exits from the hot water tank outlet 18. The heat transfer medium of the solar heat part enters from the inlet 21 of the inner canal wall annular pipe of the hot water tank and exits from the outlet 13 of the annular pipe of the inner wall of the hot water tank. Heat the water in the hot water tank through heat exchange. The direct current heating rod 14 in the hot water tank is directly connected to the electric wire 6 of the integrated panel shown in FIG. 1, and the direct current generated by the photovoltaic power generation is directly converted into heat energy to heat the water. The commercial power auxiliary heating rod 17 can heat water as auxiliary heating even in rainy weather where sunlight is weak.

The present invention relates to a solar water heater that supplies hot water using sunlight from a customer.

DESCRIPTION OF SYMBOLS 1 Panel housing | casing which integrated solar heat and solar power generation 2 Solar cell unit of panel which integrated solar heat and solar power generation 3 In the solar heat part of the panel which integrated solar heat and solar power generation, Heat conduction pipes connecting the panels 4 Entrance / exit of solar heat conduction piping of the panel integrating solar heat and solar power generation 5 Holes for passing electric wires 6 Connecting wires 6a Positive plugs on connecting wires 6b Negative plugs on connecting wires 7 Solar heat conduction piping entrance / exit of solar heat and photovoltaic power generation panels 8 Positive and negative plugs of solar power connection wires 9 Solar heat conduction piping solar heat conduction piping 10 integrated electric circuit controller 11 Circulation pump installed in solar heat conduction piping 12 Power plug of circulation pump installed in solar heat conduction piping 13 Spiral piping in hot water tank Outlet 14 Heating rod 15 of direct current in the hot water tank 15 Water inlet 16 flowing into the hot water tank Spiral piping 17 outside the inner can of the hot water tank Auxiliary heating rod 18 of commercial power outlet of water flow from the hot water tank 19 Inner can 20 Auxiliary heating rod plug 21 for commercial power The water inlet 22 of the spiral pipe outside the inner can of the hot water tank 22 Back cover of the panel integrating solar heat and solar power generation 23a Integrated solar heat and solar power generation Screw hole 23b of panel of integrated panel 23b Screw hole of back cover of panel integrating solar heat and solar power generation 23c Screw 24 of back cover of panel integrating solar heat and solar power generation Metal conductor U type Or S-shaped annular pipe 25 Solar power electric wire connection box 26 on the panel side where solar heat and solar power generation are integrated The direct current heating rod of the hot water tank unit where solar heat and solar power generation are integrated Outer base of attaching holes 27 hot water storage with integrated bottom base 28 solar heat and solar power hot water tank with integrated solar heat and photovoltaic tank

Claims (11)

Crystalline silicon or non-crystalline silicon photovoltaic power generation panel unit is a combined device in which solar heat conduction pipe and solar cell module are integrated by combined connection in series and parallel, and absorbs radiant heat from solar energy and solar energy The direct current power is taken into the hot water tank as it is, and both heat water simultaneously. The front surface of the solar panel is a photovoltaic module structure, and the rear surface is a flat plate of U-shaped or S-shaped metal heat conduction pipe. The U-type or S-type metal conduction pipe is fixed at the entrance / exit with an aluminum alloy casing, and the liquid of the heat transfer medium flows in the pipe, so that it absorbs heat and conducts heat. In a panel that integrates solar heat and solar power generation, the metal conductor U-type or S-type piping for light heat absorption and heat conduction is closely coupled to the back plate of the solar power generation module to maximize heat absorption and heat. Conduct conduction. A panel device that integrates solar heat and solar power generation is configured with a series and parallel connection method using electric cables, and at the same time, solar heat pipes are connected in series at the entrance and exit. Plates are formed in a matrix array and collect electrical and thermal energy. The liquid of the heat conduction medium body has good fluidity and uses a cold-freezing and anti-freezing liquid with good heat conduction performance to enhance the heat conductivity. A hot water tank in which solar heat and solar power generation are integrated has a structure capable of absorbing solar heat and heating with direct-current power from solar power generation. Inside the hot water storage tank that integrates solar heat and solar power generation, solar heat is taken in by flowing the liquid of the heat transfer medium in the spiral pipe and warming it through the outer wall of the spiral pipe. After the inner can of the hot water tank absorbs heat, the heat is conducted to the water in the hot water tank. DC power from solar power generation is connected to a heating rod in a hot water tank without DC / AC conversion and heats water. A heating rod that uses commercial power is installed in the hot water tank to heat the water as a supplement for sunless days. Control of the heat conduction and heat absorption portion of solar heat can cause the liquid of the heat conduction medium to flow or be stopped when a difference between the hot water storage tank temperature and the set temperature is detected. The control device that supplies the power of solar power generation controls the operation or stop of the electric heating rod of solar power generation when the temperature in the hot water tank exceeds the set safe temperature value, and installs automatic measurement and commercial power The operation or stop of the auxiliary heating rod is also controlled.

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