JPS6093290A - Heat exchange type hot-water reserving tank - Google Patents

Abstract

PURPOSE:To permit to reserve hot-water above the outlet port at a middle position during more short period of time or to more high temperature by forming a choke along the whole circumference in a flow path immediately below the outlet port at the middle position. CONSTITUTION:A cylindrical part 2, constituting the peripheral wall of a water tank 1, is formed by a double wall 5 to constitute the tubular flow path 6, through which heat medium flows, on the peripheral surface of the water tank 1. An inlet port 7, through which the heat medium flows into the flow path 6, is formed at the upper position of the flow path 6 and the outlet ports 8a, 8b are formed at the lower position and the middle position between the inlet port 7 and the outlet port 8a. The heat medium, entered from the inlet port 7, heats water in the water tank 1 during flowing down the flow path 6 and is recirculated to a heat source through the outlet ports 8a, 8b. In case the water to be heated is limitted to the water above the outlet port 8b at the middle position, the water will never flow down under the choke 9 since the choke 9 is formed immediately below the outlet port 8b at the middle position and, therefore, the amount of heat exchange may be increased and the hot-water of high temperature may bae reserved.

Description

[Detailed Description of the Invention] [Technical Field] This invention forms a circumferential wall of a water tank with a double wall to form a flow path for a heat medium on the circumferential surface of the water tank, and an inlet for the heat medium communicating with this flow path. The present invention relates to a heat exchange type hot water storage tank which is formed in an upper part, and has an outlet paired with the inlet in a lower part and in a middle position between the upper part and the lower part.

[Background Art] As shown in FIG. 1, the water tank 31 is formed by forming the heat collector in which the flow path through which the heat medium flows and the peripheral wall 32 of the water tank 31 with a double wall 33.
A heat medium flow path 34 is formed on the circumferential surface of the heat medium, an inlet 35 for the heat medium that communicates with this flow path 34 is formed in the upper part, and an outlet 36 that forms a pair with this population 35 is formed in the lower part and the upper part and the lower part. The space between the heat exchange type hot water storage tank 37 formed in the middle between
The solar heat hot water storage device which heats the water in the water tank 31 of the heat exchange type hot water storage tank 37 from inside the ring, transfers the heat medium to the middle outlet 3.
If the hot water is circulated from 6 to the heat collector, the amount of hot water stored is small or short.
Although it takes a long time to circulate hot water from No. 6 to the heat collector, a large amount of hot water can be stored, and therefore, it is highly practical in that hot water can be supplied in accordance with various actual situations.

By the way, in this configuration, when the heat medium is circulated to the heat collector from the intermediate outlet 36, it flows from the heat medium inlet 35 provided at the upper level as shown in the figure, and the flow of the heat medium in the heat exchange type hot water storage tank 37 is reduced. As the heat medium flowing down the passage 34 moves further away from the intermediate outlet 36, it flows down below the intermediate outlet 36, so that the water above the outlet 36 is not sufficiently heated and cannot be stored at a high temperature. , the functionality has been reduced in terms of practicality.

[Object of the invention] This invention has been made in view of the above facts, and the peripheral wall of the water tank is formed with a double wall to form a heat medium flow path on the peripheral surface of the water tank, and the heat medium communicated with this flow path is The practical value of the heat exchange type hot water storage tank is enhanced in that the inlet for the medium is formed in the upper part, and the outlet paired with this inlet is formed in the lower part and in the middle position between the upper part and the lower part. Specifically, the present invention provides a heat exchange type hot water storage tank that can store water above the middle outlet for a shorter time or at a higher temperature.

[Disclosure of the Invention] That is, the present invention forms the circumferential wall of the water tank with a double wall, forms a flow path for the heat medium on the circumferential surface of the water tank, and forms an inlet for the heat medium communicating with this flow path in the upper part, In a heat exchange type hot water storage tank in which an outlet paired with the inlet is formed at a lower position and an intermediate position between the upper and lower positions, a constriction is provided in the flow passage all the way under the intermediate outlet. The present invention provides a heat exchange type hot water storage tank characterized by a formed structure.

Hereinafter, the present invention will be explained based on the drawings of the embodiments. Second
The figure is a cross-sectional view of a main part of a heat exchange type hot water storage tank according to an embodiment of the present invention, and FIGS. 3, 4, and 5 are cross-sectional views of main parts according to a further embodiment of the present invention.

In Fig. 2, ■ is an aquarium. This water tank 1 consists of a cylindrical circumferential body part 2 constituting a circumferential wall, an upwardly convex bulbous ceiling 3 connected to the upper end of the circumferential body part 2, and a downwardly convex bulbous ceiling 3 connected to the bottom θ; 11 of the circumferential body part 2. It consists of an original bottom plate 4. The circumferential body portion 2 constituting the circumferential wall of the water tank 1 is formed of double Pi5, and a cylindrical flow path 6 through which the heat medium flows is formed on the circumferential surface of the water tank 1. An inlet lower part into which the heat medium flows is formed in the binary part of this flow path 6, and furthermore, an unpaired outlet 8a, 8b is located at the lower part of this lower part, and between this lower outlet 8d and the above inlet lower part. The middle two are formed.

As the heating medium here, used are substances known as heating mediums, such as propylene glycol, for example.

A feature of the present invention is that a restrictor 9 is formed around the entire circumference of the flow path 6 directly below the intermediate outlet 8b. This aperture 9
For example, the outer wall 10 constituting the double wall 5 may be provided with a protrusion 11 for the channel 6, or the inner wall 12 of the double wall 5 may be provided with a protrusion 11 for the channel 6 as shown in FIG. It may be formed by providing a protruding strip 11 on the other hand, or it may be formed by passing a wire 13 around the outer wall 10 as shown in FIG. 11 may be provided. That is, the heat medium flowing from the binary heat medium input lower heats the water in the water tank 1 while flowing down the flow path 6, and returns to the heat source from the outlets 8a and 8b. In this case, if the water to be heated is limited to the area above the middle outlet 8b, the water will not flow down below the throttle 9 because a throttle 9 is formed just below the middle outlet 8h, and therefore the heat will not flow down. This increases the exchange rate and allows hot water to be stored at a higher temperature. This is particularly noticeable in areas far from the exit 8b.

Note that the heat source for heating the heat medium used in this invention is not limited to solar heat. Combustion heat, electric heat, etc. may be used.

[Effects of the Invention] As described above, in the present invention, when heat exchange is performed only above the intermediate outlet, the amount of heat exchange increases and hot water can be stored at a high temperature.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of a conventional example of the present invention, FIG. FIG. 7 is a sectional view of main parts according to another embodiment of the invention. ■ −−−−Aquarium 7−−−−−−Population 5−−−−−
Double wall 8a, 8 Lee ------- Outlet 6 ---- Main channel 9 ---- One aperture See details in Figure 1, Figure 2, Figure 3. 81

Claims (3)

[Claims] (1) Form the circumferential wall of the water tank with a double wall to form a flow path for the heat medium on the circumferential surface of the water tank, form an inlet for the heat medium communicating with this flow path in the upper part, and form a pair with this inlet. A heat exchange type hot water storage tank in which an outlet is formed at a lower position and at an intermediate position between the upper and lower positions, characterized in that a restriction is formed in the flow path over the entire circumference immediately below the intermediate outlet. A heat exchange type hot water storage tank. (2) The heat exchange type hot water storage tank according to claim 1, wherein the throttle is formed by providing a convex strip on the outer wall of the double wall with respect to the flow path. (3) The heat exchange type hot water storage tank according to claim 1, wherein the throttle is formed by providing a convex strip on the inner wall of the double wall with respect to the flow path.