JPS629824B2 - - Google Patents

Abstract

PURPOSE:To improve the adiabatic property of a hose for connecting two boiler units of the titled boiler by a method wherein in case the connecting ports of the two boiler units are connected directly by the hose, the hose is covered with a flexible cover whose both ends can be turned inside out toward the center and which is larger in length than the space between the two units. CONSTITUTION:The hose 5 is inserted into the connecting port 1a of the solar heat hot water boiler unit 1 and is fixed with a clamper 6. Then the flexible cover 7 is arranged to the outside of the hose 5 to surround the latter and after bringing one end of the cover 7 into close contact with the side surface of the unit 1, the other end of the cover 7 is turned inside out toward the center 7a of the cover to make the corresponding free end of the hose 5 exposed. After that, another clamper 6 is fitted about the exposed end of the hose 5, the end is inserted into the connecting port 2a of the boiler unit 2, the turned end of the cover 7 is restored to the original position and attached closely to the side surface of the unit 2. In this case, the cover 7 is provided with ring- like projections 9 near the thin edges of both ends thereof so that the ends 7b are kept circular due to the existence of the projections 9 and the thin edges of the cover 7 are attached closely to the side surfaces of the units 1 and 2, respectively, whereby the invasion of rain water into the cover 7 is prevented and the heat insulating property of the hose 5 is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a solar water heater in which the connection ports of left and right solar water heater units are connected via hoses.

A conventional solar water heater of this type has left and right solar water heater units 11 and 12, as shown in FIG.
When connecting the left and right solar water heater units 1
Connection ports 11a and 12a provided in 1 and 12, respectively
The connection was accomplished by inserting both ends of the hose 13 and tightening them using a clamper 14 as shown in FIG. In order to prevent heat dissipation from the hose 13 through which hot water passes, conventionally, a heat insulating material 15 with a portion cut out in the longitudinal direction as shown in FIG. 8 is wrapped directly around the outside of the hose 13. was. However, in this configuration, the heat insulating material 15 is
3, so in order to reliably prevent heat dissipation from the hose 13,
The heat insulating material 15 needs to be thick, which results in high cost, and since the distance between the left and right solar water heater units 11 and 12 is relatively narrow, it is not necessary to use a thick insulating material 15. The work of winding it was extremely difficult. Furthermore, since the adhesion between both end surfaces of the heat insulating material 15 and the side surfaces of the left and right solar water heater units 11 and 12 is not very good, Another problem was that rainwater entered the gap between the hose 13 and the heat insulating material 15, impairing the heat insulating effect.

The present invention has been made to solve the above-mentioned conventional problems, and the present invention will be explained below based on the drawings showing one embodiment thereof. FIG. 1 shows a state in which left and right solar water heater units 1 and 2 are connected, and each of the left and right solar water heater units 1 and 2 is composed of a heat collecting section 3 and a hot water storage tank section 4. Figure 2 shows left and right solar water heater units 1 and 2.
In this figure, 1a and 2a are connection ports provided in the left and right solar water heater units 1 and 2, respectively, and 5 is a hose having a bellows part 5a in the center. Both ends are inserted into the connection ports 1a and 2a of the solar water heater units 1 and 2, and are clamped and fixed by a clamper 6. 7
is a cylindrical hose cover disposed on the outside of the hose 5 with a heat insulating air layer 8 in between; this hose cover 7 is made of a flexible material such as rubber, and its shape is such that the central portion 7a is cylindrical. In addition to
Both end portions 7b are shaped like a tangle whose diameter gradually increases from the center portion 7a to the end portions. Further, the hose cover 7 has a central portion 7 on the outer periphery of both ends 7b.
By providing a ring-shaped convex portion 9 having a wall thickness b larger than the wall thickness a of a, and utilizing the holding force in the outer circumferential direction due to the increased strength of the thick wall of this convex portion 9,
The circularity of both ends 7b is maintained. Furthermore, the length c in the longitudinal direction of the hose cover 7 shown in FIG. 3 is longer than the distance d between the left and right solar water heater units 1 and 2.

In the above configuration, the operation when the left and right solar water heater units 1 and 2 are connected will be explained. First, as shown in FIG. 4, one end of the hose 5 is inserted into the connection port 1a of one solar water heater unit 1 and tightened and fixed with a clamper 6, and a hose cover 7 is placed on the outside of the hose 5.
Then, one end of the hose cover 7 is brought into close contact with the side surface of one solar water heater unit 1, and then, as shown in FIG.
While turning it over to the a side, a clamper 6 is attached to the other end of the hose 5, and the other end of the hose 5 is inserted into the connection port 2a of the other solar water heater unit 2 and tightened and fixed by the clamper 6. Finally, the other end of the hose cover 7 that has been turned over is returned to its original state, and the other end of the hose cover 7 is brought into close contact with the side surface of the other solar water heater unit 2. In this case, ring-shaped protrusions 9 are provided at both ends 7b of the hose cover 7.
, the circularity of both ends 7b can be maintained, and since the tip part is thinner than the convex part 9, both ends 7b of the hose cover 7 can be attached to the left and right solar water heater units 1, 2. As a result, rainwater will not flow into the hose cover 7. Furthermore, since the length c in the longitudinal direction of the hose cover 7 is longer than the distance between the left and right solar water heater units 1 and 2, the hose cover 7 is interposed between the left and right solar water heater units 1 and 2. If c
−d, both ends 7 of the hose cover 7.
b is pushed toward the sides of the left and right solar water heater units 1 and 2, and as a result, the close contact between the two is further increased.

As described above, according to the present invention, each connection port of the left and right solar water heater units is connected via a hose, and a hose made of a cylindrical flexible material is connected to the outside of the hose through an insulating air layer. Since the cover is provided, heat dissipation from the hose can be reliably prevented by an insulating air layer, and since both ends of the hose cover can be turned over toward the center, the hose cover When connecting the hose located inside the cover to the connection port of the solar water heater, turn both ends of the hose cover inside out.
The connection work can be done easily, and since the length of the hose cover in the longitudinal direction is longer than the distance between the left and right solar water heater units, when both ends of the hose cover are returned to their original positions, Both ends will surely come into close contact with the sides of the left and right solar water heater units, and as a result, rainwater can be reliably prevented from entering.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the connected state of left and right solar water heater units in one embodiment of the present invention;
The figure is a side sectional view of the connection part, FIG. 3 is a front view of the hose cover used in the water heater, and FIGS. 4 and 5 are perspective views showing the hose cover in use.
FIG. 6 is a side sectional view showing the connected state of the left and right solar water heater units in the related art, FIG. 7 is a perspective view of the clamper, and FIG. 8 is a perspective view of the heat insulating material. 1, 2...Left and right solar water heater units, 1
a, 2a... Connection port, 5... Hose, 7... Hose cover, 7a... Center part, 7b... Both ends, 8
...Insulating air layer.

Claims (1)

[Scope of Claims] 1. Each connection port of the left and right solar water heater units is connected via a hose, and the center part is cylindrical and both ends are connected from the center part through a heat insulating air layer on the outside of the hose. A cylindrical hose cover made of a flexible material is provided, which has a conical shape with a large diameter and ring-shaped protrusions on the outer periphery of both ends. A solar water heater that requires a longer connection distance. 2. The solar water heater according to claim 1, wherein the hose cover has a wall thickness that is thinner at the conical tip than at the center.