JPS6349659Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a solar water heater equipped with a heat collecting section and a hot water storage tank disposed in an inclined state above the heat collecting section. be.

Conventional configuration and its problems A conventional solar water heater was configured as shown in Figure 1. That is, in this Figure 1, 1
1 is a hot water storage tank, and a water supply pipe 3 having a ball tap 2 is attached to the upper side wall of this hot water storage tank 1. Reference numeral 4 denotes a water guide pipe located below the water supply pipe 3 and arranged in the hot water storage tank 1, and this water guide pipe 4 guides water supplied from the water supply pipe 3 to the lower side of the hot water storage tank 1. Reference numeral 5 denotes a heat collecting section, and this heat collecting section 5 is connected to the hot water storage tank 1 through an outgoing pipe 6 and a return pipe 7.
Reference numeral 8 denotes a hot water outlet provided at the bottom of the side wall opposite to the side wall to which the water supply pipe 3 of the hot water storage tank 1 is attached;
One end of a molten metal guide pipe 10 having a bendable bellows part 9 is attached to the molten metal guide pipe 10, a float 11 is attached to the other end of the molten metal guide pipe 10, and the opening at the other end is used as a molten metal inlet 12.

In the above-mentioned conventional configuration, to explain its operation, water supplied from the water supply pipe 3 into the hot water storage tank 1 is guided into the heat collecting part 5 via the outgoing pipe 6, and the water is absorbed by solar heat in the heat collecting part. is heated to become hot water, and this hot water passes through a return pipe 7 to a hot water storage tank 1.
The hot water enters the tank 1 and is stored sequentially from the top of the tank 1. Then, this hot water is supplied from the hot water intake port 12 to the hot water pipe 10.
The water is taken in and taken out from the outlet 8. In this case, the hot water guide pipe 10 has a bendable bellows part 9 and a float 11 is attached, so that when the water level in the hot water storage tank 1 decreases due to hot water withdrawal, the hot water guide pipe 10 10 also descends, so by providing such a movable hot water pipe 10, the hot water pipe 10 can always be positioned below the water surface regardless of the amount of hot water supplied. , it is possible to prevent the air trapping phenomenon that occurs due to the relationship between the hot water supply flow rate and the water supply capacity.

However, in the conventional configuration described above, since the float 11 is fixed to the other end of the molten metal introduction pipe 10, the dimension from the float 11 to the molten metal intake port 12 can always be maintained at a constant size. If the dimensions are large, open the spout 1 from the water surface.
A phenomenon in which hot water of up to 2 mm remains remains, and conversely, if this dimension is small, air entrapment phenomenon occurs.

Purpose of the invention In view of the above-mentioned conventional problems, the present invention aims to provide a solar water heater that can adjust the dimension from the water surface to the hot water intake to an appropriate dimension in response to remaining hot water and air flow. This is the purpose.

Structure of the Invention In order to achieve the above object, the present invention has developed a movable float-type hot water system, which has one end connected to a hot water outlet provided at the lower part of the side wall of a hot water storage tank, and a float and a hot water sampling port provided at the other end. A float provided on the pipe is attached to the float-type molten metal pipe so that its angle can be adjusted freely, and the vertical component of the distance between the float and the molten metal intake can be varied. According to this configuration, the dimension from the water surface to the molten metal intake can be adjusted arbitrarily by rotating the float, so it has the practical effect of quickly responding to problems with remaining hot water and air trapping under the installation conditions of solar water heaters. It is something that plays.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 2 shows a side sectional view of a heat pipe type solar water heater in an embodiment of the present invention,
In addition, FIG. 3 shows a cross-sectional view taken along the line A-A' in FIG.
A heat collecting part 23 is a hot water storage tank which is arranged in an inclined state above the heat collecting part 21, and the lowest part of the hot water storage tank 23 has the plurality of heat collecting parts 22a disposed therein. Condensing part 22b of book heat pipe 22
has been set up. 24 is a water supply pipe attached to the upper side wall of the hot water storage tank 23, and has a ball tap 25. 26 is a hot water storage tank 2 located below the water supply pipe 24;
This water guide pipe 26 is a water guide pipe disposed within the hot water tank 23, and this water guide pipe 26 guides water supplied from the water supply pipe 24 to the lower part of the hot water storage tank 23. Reference numeral 27 denotes a hot water outlet provided at the bottom of the side wall opposite to the side wall to which the water supply pipe 24 of the hot water storage tank 23 is attached, and one end 28a of a float type hot water supply pipe 28 is connected to this hot water outlet 27. A float 29 is attached to the other end 28b of the molten metal guide pipe 28, and a molten metal inlet 30 is provided on the upper surface.

The float type hot water supply pipe 28 has one end 2
8a is composed of a straight pipe made of synthetic resin such as polyethylene, and the other end 28b is composed of a molded pipe made of synthetic resin such as polyethylene having a plurality of bendable bellows parts 31 and straight pipe parts 32, This formed pipe is directly attached to the straight pipe by screwing.

4 and 5 show the mounting structure of the float 29 to the float-type molten metal pipe 28,
On the other end 28b of the float type hot water supply pipe 28, a first rib 33 is formed around the entire circumference to prevent the float 29 from moving in the axial direction and to set the position. Second ribs 34 are formed at two positions on the circumference. Further, a molten metal inlet 30 is provided on the upper surface between the first rib 33 and the bellows portion 31, and a substantially semicircular shape is provided on the tip surface of the other end 28b of the float type molten metal guide pipe 28 for venting air. A hole 35 is provided. Further, between the first rib 33 and the second rib 34, substantially triangular pyramid-shaped protrusions 36 are integrally formed at two positions on the circumference.

On the other hand, the float 29 has a ball portion 29a and a mounting portion 29b integrally molded from a synthetic resin such as polyethylene, and the mounting portion 29b has the other end of the float-type molten metal pipe 28 as shown in FIG. Part 28b
A hole 37 is provided to fit on the outer periphery of the hole 3.
A plurality of substantially triangular pyramid-shaped recesses 38 that fit into the substantially triangular pyramid-shaped protrusion 36 are formed so as to protrude outward from 7, and a recess 39 that fits into the second rib 34 is formed. Two pieces are formed.

Then, the float 29 is connected to the float type hot water pipe 2.
8, first align the substantially triangular pyramid-shaped recess 38 of the float 29 with the substantially triangular pyramid-shaped protrusion 36 on the float-type molten metal pipe 28 side, and then and the second rib 34 on the float-type molten metal guide pipe 28 side, and then move the float 29 in the axial direction of the float-type molten metal guide pipe 28, so that the float 29 aligns with the first rib 33 and the second rib 34. It is attached between the rib 34 of.

In the above installed state, when the float 29 is forcibly rotated clockwise from the state shown by the solid line in FIG. 5 using the elastic force of the synthetic resin, the dimensions from the water surface to the spout 30 are It can be changed arbitrarily to C. By having this configuration, it is possible to quickly respond to the problem of remaining hot water or air trapping phenomenon under the installation conditions of the solar water heater. It is something that can be done.

In the above embodiment, the float angle adjustment mechanism of the present invention is applied to a heat pipe type solar water heater, but it can also be applied to a natural circulation type solar water heater.

Effects of the invention As described above, according to the invention, a movable float-type hot water pipe is connected at one end to a hot water outlet provided at the lower part of the side wall of a hot water storage tank, and has a float and a hot water sampling port at the other end. The float is attached to the float-type molten metal pipe so that its angle can be adjusted freely, and the vertical component of the distance between the float and the molten metal inlet is variable.By rotating this float, you can move the molten metal from the water surface to the molten metal inlet. The dimensions of the water heater can be adjusted arbitrarily, and as a result, it has the practical effect of being able to quickly respond to problems with remaining hot water and air trapping under the installation conditions of solar water heaters. It is.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view of a part of a conventional natural circulation solar water heater, Fig. 2 is a side sectional view of a heat pipe solar water heater according to an embodiment of the present invention, and Fig. Fig. 2 is a sectional view taken along the line A-K, Fig. 4 is a side view of the float mounting part in the same water heater, Fig.
The figure is a front view of the float mounting section. 21... Heat collection part, 23... Hot water storage tank, 27... Hot water outlet, 28... Float type hot water guide pipe, 28a... One end, 28b... Other end, 29... Float, 3
0...Three spout, 36...Substantially triangular pyramidal protrusion, 38
...A roughly triangular pyramid-shaped recess.

Claims (1)

[Scope of utility model registration request] a heat collecting section, a hot water storage tank disposed in an inclined state above the heat collecting section, a hot water outlet provided at a lower part of a side wall of the hot water storage tank, one end connected to the hot water outlet, and A movable float-type molten metal guide pipe is provided with a float and a molten metal sampling port at the other end, and the float provided in the float-type molten metal guide pipe is attached to the float-type molten metal guide pipe so as to be adjustable in angle, and the float A solar water heater in which the vertical component of the distance between the tap and the tap is variable.