JPS5922436Y2 - solar water heater device - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a solar water heater device.

In order to save power, increase heat transmission coefficient, and improve heat collection efficiency, it is extremely effective to drive a pump with wind power and force circulation between the heat storage device and the heat collector.

However, the wind does not always blow from a fixed direction, and the wind force fluctuates constantly.

As a result, the pump could not be rotated constantly and smoothly in response to wind power, and solar heat could not be used effectively.

The present invention was developed in consideration of the above points, and as a pump driven by a horizontal wind turbine, the pump can be rotated smoothly at all times in the face of wind from any direction, north, south, east, or west.
To provide a solar water heater device capable of automatically rotating a pump almost constantly despite constant fluctuations in wind power and increasing the heat transfer coefficient of hot water by controlling the flow rate of water sent to a heat collector at an appropriate amount. be.

The present invention will be explained below with reference to examples.

The solar water heater device is composed of a heat collector 1, a heat storage tank 2, a horizontal wind turbine 3, etc., as shown in FIG.

The heat collector 1 is equipped with a flexible pipe 4 so that solar heat can be effectively used to exchange heat with hot water, and the inlet and outlet sides of the flexible pipe 4 are connected to the water supply pipe 5 and the return water pipe 6 of the heat storage tank 2, respectively. Connected.

The heat storage tank 2 is installed at a high place outdoors, and the water pipe 5 is equipped with a pump 7 so as to forcibly send water to the heat collector 1. As shown in FIG. 2, a pump rotation shaft 8 for rotating a pump (not shown) is connected to the output side of a variable speed transmission 9, and a horizontal wind turbine rotation shaft 10 of a horizontal wind turbine 3 is connected to the input side of the transmission 9. ing.

The transmission 9 is fixed to a support 11 fixed to the upper part of the heat storage tank 2, as shown in FIGS. The pump 7 is configured to rotate at a variable speed using two sets of multi-stage gear trains 12 with required gear ratios so that the rotation speed of the pump 7 is approximately constant.

As shown in FIGS. 2 and 3, the horizontal wind turbine 3 is an axially symmetrical type like a cross-flow fan, and has rotating blades 1 on the cylindrical periphery.
3 are arranged in a predetermined shape radially around a large number of circumferences, and a conical thrust part 15 for generating a downward component force generated by wind power is provided on the bottom plate 14 at the bottom of the horizontal wind turbine 3. The push-up lever 1-Al6 is provided so as to be movable downward.

Then, this horizontal wind turbine rotation shaft 10 is attached to the gear train 12 on the input side of the transmission 9, and a key 18 that slides along the axial direction and transmits the rotation of the required gear 17 is attached to the horizontal wind turbine rotation shaft 10, and According to the increase in the downward force applied to the horizontal wind turbine 3, the horizontal wind turbine rotating shaft 10 is pushed down, and only the gear 17 of the required rotation speed is engaged with the key 18, regardless of the rotation speed of the horizontal wind turbine 3. The pump 7 can be automatically driven to rotate at almost one rotational speed at all times.

19 is an automatic water supply device such as a ball tap disposed in the heat storage tank 2, 20 is a supply pipe for supplying tap water, etc., and 21 is a hot water supply pipe for sending hot water to the outside.

The operation of the solar water heater device of the present invention that has been stolen in this way will be explained.

A certain amount of water is loaded into the heat storage tank 2 from the supply pipe 20,
When the wind blows at a certain speed or higher, the wind flows in between the blades 13 on one side of the horizontal wind turbine 3 and flows through the blades 13 on the opposite side, as shown in Figure 3.
The horizontal wind turbine 3 rotates in the horizontal direction due to the wind pressure that flows out between the blades 13 and hits the blades 13 at that time.

Horizontal wind turbines are axially symmetrical and can freely rotate in the horizontal direction, so they can rotate smoothly regardless of the direction of the wind, even if the wind blows from north, south, east, or west.

In addition, since the horizontal wind turbine is a once-through type like a through fan, the wind flows through the blades of the horizontal wind turbine from the outside to the inside and from the inside to the outside, so the torque that rotates the horizontal wind turbine can be increased.
Furthermore, even though the horizontal wind turbine is installed outdoors, it has a self-cleaning effect and is less likely to attract dust or the like.

Further, when the horizontal wind turbine 3 rotates appropriately according to the wind force, the horizontal wind turbine 3 is pushed down according to the wind force by the thrust part 15 for generating a downward force component and the push-up spring 16, and the input side of the transmission 9 is pushed down. A predetermined gear 17 is engaged by a key 18 to automatically change the gear ratio to a predetermined gear ratio according to the wind force, and the pump 7 is always driven to rotate at a substantially constant appropriate rotational speed.

Therefore, as shown in FIG. 1, the water in the heat storage tank 2 passes through the water pipe 5 and is always sent to the flexible pipe 4 of the heat collector 1 at a predetermined flow rate, allowing the most appropriate heat exchange of solar heat to hot water. The hot water is circulated through the heat storage tank 2 and returned to the heat storage tank 2, so that hot water can be stored in the heat storage tank 2.

In this way, the pump rotation speed can be kept constant regardless of the strength of the wind, so the flow rate of water sent to the heat collector can always be kept at an appropriate amount, and the heat transmission coefficient of solar heat can be increased.

Note that the transmission is not limited to a gear train type, but may also be a friction rotation type or a variable belt type.

As described above, with this invention, the pump can always be rotated at a nearly constant rotation speed regardless of the wind from any direction, north, south, east, west, or regardless of the strength of the wind. It is possible to always send water at an appropriate flow rate to the hot water, increase the heat transmission coefficient of hot water, and further increase the effective use of solar heat.

[Brief explanation of drawings]

Fig. 1 is a schematic explanatory diagram of one embodiment of the present invention, Fig. 2 is an enlarged side sectional view of the horizontal wind turbine section and automatic transmission section of the same above, and Fig. 3 is a cross-sectional view of the horizontal wind turbine same as above. . 1... Heat collector, 2... Heat storage tank, 3
...Horizontal windmill, 7...Pump, 8...
...Pump rotating shaft, 9...Transmission, 15.
...Thrust part for generating component force.

Claims (1)

[Scope of utility model registration request] The pump is designed to circulate water between a heat collector that exchanges solar heat into hot water, a heat storage tank that stores hot water, and a wind-driven horizontal wind turbine that can rotate horizontally. At the same time, the horizontal wind turbine is equipped with a force-generating thrust section that generates thrust in the axial direction by the wind force, so that the transmission can automatically change the speed of the horizontal wind turbine. A solar water heater device characterized in that it is connected to a transmission.