JPS6310442Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a heat pipe type solar water heater using a heat pipe.

A conventional heat pipe type solar water heater was constructed as shown in FIG. That is, 1 is a heat collector main body, 2 is a hot water storage tank located above the heat collector main body 1, and 3 is a plurality of heat pipes, and the evaporation part 3a of this heat pipe 3 is connected to the heat collector main body. 1, and the condensing section 3b is disposed within the hot water storage tank 2. Reference numeral 4 denotes a heat collecting plate pressed onto the evaporation section 3a of the heat pipe 3. Further, the heat pipe 3 is fixed to the hot water storage tank 2 by tightening screws 6 through packing 5, thereby preventing water in the hot water storage tank 2 from leaking to the outside.

In this case, the condensing part 3b of the heat pipe 3 is supported in a cantilevered manner around the screw 6 of the hot water storage tank 2, so it is subject to various shocks during the time it is transported from the factory to the consumer's home. As a result, the heat pipe 3 may be deformed, or in the worst case, the heat pipe 3 may be
The problem was that when the heat pipe was damaged, the working fluid inside leaked and the original function as a heat pipe was lost.

In view of the above-mentioned conventional problems, the present invention aims to provide a heat pipe type solar water heater that does not cause damage to the heat pipe due to drop shocks and vibrations that are normally considered during transportation. It is.

The basic structure of the present invention for achieving the above object is that the tip of the condensing part of the heat pipe is held facing a recess provided on the inner wall surface of the hot water storage tank.

The present invention has the above configuration, so that even if shocks and vibrations occur during the production of the heat pipe type solar water heater in a factory and during transportation until it reaches the consumer's home, the condensing part of the heat pipe is is retained in the hot water storage tank, so there is no longer the risk that the heat pipe would crack due to repeated loads at the joint with the hot water storage tank and leak the internal working fluid, which was the case in the past. This solved the problem of the heat collection temperature not rising after it was installed in a person's home. In particular, when the working fluid inside the heat pipe is transported while being collected in the condensation section, the hollow pipe is not simply supported on a cantilever, but the actual cantilever impact load becomes unexpectedly large, resulting in consumption There were many cases in which heat pipes were damaged before being delivered to people's homes, but this problem was solved by the present invention.

Hereinafter, one embodiment of the present invention will be described based on FIGS. 2 to 4. In addition, in FIGS. 2 to 4, the same parts as those in FIG. 1 shown in the conventional example are given the same numbers. Fig. 2 shows a state in which a plurality of heat pipe type solar water heaters are installed in parallel according to an embodiment of the present invention, where 1 is the collector body, 2 is located above the collector body 1. A hot water storage tank is provided, 7 is a water supply port, and 8 is a hot water outlet.

FIG. 3 shows a cross-sectional view taken along the line X-X in FIG. It is attached to the board 9. Further, a glass body 10 that transmits sunlight is disposed on the upper surface of the heat collector body 1. The condensing part 3b at the upper part of the evaporating part 3a of the heat pipe 3 passes through an opening in the wall of one side of the hot water storage tank 2,
Moreover, this penetrating portion is sealed by packing 5. In addition, the other end of the heat pipe 3 faces into the hot water storage tank 2 as a condensing part 3b,
A recess 2a is provided on the inner wall surface of the hot water storage tank 2 facing the front end of the condensing part 3b and facing the surface having the opening, and the end of the condensing part 3b is held facing the recess 2a. Reference numeral 11 denotes an outer cover disposed on the outside of the hot water storage tank 2 with a heat insulating material 12 interposed therebetween. Reference numeral 13 denotes a plurality of heat collecting fins having an L-shaped cross section, and the relationship between the heat collecting fins 13 and the heat pipe 3 is such that they are perpendicular to each other as shown in FIG. , the evaporation portions 3a of the plurality of heat pipes 3 are passed through the vertical portions 13a of the plurality of heat collecting fins 13 having an L-shaped cross section, and are fixed integrally with each heat collecting fin 13 one by one. . 14 is a working fluid sealed in the heat pipe 3, and this working fluid 14 usually accounts for 10 to 25% of the internal volume of each heat pipe 3.
It is included to some extent.

Next, the operation of the above configuration will be explained. The sunlight transmitted through the glass body 10 is passed through the heat pipe 3
The working fluid 14 sealed inside is boiled to generate steam. Then, this steam is conveyed to the condensing part 3b of the heat pipe 3, and is cooled and condensed in the condensing part 3b, so that the water 15 in the hot water storage tank 2
The heat is transferred to the water 15 and warms the water 15. The working fluid 14 liquefied by condensation flows down inside the heat pipe 3 and returns to the evaporator 3a, where it evaporates again and repeats the above-described operation.

As described above, according to this embodiment, the heat pipe 3 is held by the recessed part 2a provided on the inner wall surface of the hot water storage tank 2 and the packing 5 of the penetrating part of the hot water storage tank 2, so that the heat pipe 3 is held in the hot water storage tank 2. As a result, the heat pipe 3 will not be damaged due to shock or vibration during transportation, and the recessed portion 2a
Since it can be installed integrally when blow molding the hot water storage tank 2, which is usually made of synthetic resin, there is almost no increase in cost, and the length of the condensing part of the heat pipe 3 is increased by the length of the extension. Therefore, the efficiency of heat exchange with the water in the hot water storage tank 2 can also be increased.

As is clear from the description of the embodiments above, in the present invention, the heat pipe is held by the packing and the inner wall of the hot water storage tank, so the heat pipe itself is flexed and the cushioning properties of the material are used to withstand shocks and vibrations. Damage can be prevented. This allows the water in the hot water storage tank to come into direct contact with the condensing part of the heat pipe, improving heat exchange efficiency.

[Brief explanation of the drawing]

Fig. 1 is a cutaway perspective view of a conventional heat pipe type solar water heater, Fig. 2 is a perspective view showing an embodiment of the present invention in which a plurality of heat pipe type solar water heaters are installed side by side, and Fig. 3 2 is a sectional view taken along the line X-X in FIG. 2, and FIG. 4 is a perspective view showing the relationship between the heat pipe and the heat collecting fins in the water heater. 1... Heat collector body, 2... Hot water storage tank, 2a...
... hollow part, 3 ... heat pipe, 3a ... evaporation part, 3b ... condensation part.

Claims (1)

[Scope of utility model registration request] It has a heat collector main body in which evaporation parts of a plurality of heat pipes are arranged, and a hot water storage tank provided above the heat collector main body, and an opening is provided in one surface of the hot water storage tank. The condensing part of the heat pipe is passed through the opening, and the tip of the condensing part of the heat pipe is held facing a recess provided in an inner wall surface facing the surface of the hot water storage tank having the opening. Heat pipe type solar water heater.