JPS613993A - Ice making type heat exchanger for heat accumulating tank for room cooling and heating - Google Patents

Abstract

PURPOSE:To improve heat accumulating efficiency as well as heat exchanging amount by enlarging heat transfer area and preventing leakage by a constitution wherein the constituting unit pipe of the heat exchanger is provided with an upward slope from the outer peripheral pipe of a horizontally arranged scroll-type coil thereof toward the inner peripheral pipe thereof. CONSTITUTION:The heat exchanger is formed by a plurality of constituting unit pipes in which one piece of continuous pipe 5 is wound into scroll shape and is arranged horizontally while the upward slope is provided from the outer peripheral pipe 5-1 toward the inner peripheral pipe 5-2 thereof. The outer peripheral pipe 5-1 is connected to an inlet brine header 3 and the inner peripheral pipe 5-2 is connected to an outlet brine header 3'. Thus, the scrolled continuous pipe is concentrated with a large density and respective unit pipes can be arranged closely with each other, therefore, the heat transfer area may be enlarged and the heat acuumulating efficiency may be improved. Further, leakage can be reduced by decreasing the number of connecting parts and the coils are provided with the slope, therefore, air, entered into the pipes of the heat exchanger may be extracted to the headers and the heat exchanging amount may be increased.

Description

[Detailed description of the invention] Concerning vessels.

A conventional ice-making type heat exchanger of this type has a structure as shown in FIGS. 1 and 2, for example.

That is, the conventional structure shown in FIG. 1 consists of a vertically arranged heat exchanger unit having a meandering brine passage formed therein, and a plurality of such units arranged in parallel.

In such a structure, there are many connections such as the connection of the extraction pipe from the heat exchange panel λ and the connection between this pipe and the header 3. In particular, increasing the heat transfer area requires increasing the number of panels, which inevitably increases the number of connections, making the problem of leak prevention even more troublesome. In the conventional structure shown in the figure, the units are vertically arranged pipes wound in a spiral.Although this structure does not have many of the drawbacks of the above-mentioned structure, it creates a space in the center of the spiral, making it difficult to make ice. The transfer area of the heat exchanger cannot be made very large.Therefore, in order to ensure the amount of ice produced, the ice thickness of the pipe must be increased.
The refrigerator is forced to operate inefficiently. Also, this structure is inefficient for transporting the spiral pipes after they are shipped to the factory.

The present invention has been made for the purpose of improving the various drawbacks of the above-mentioned conventional structure. “In other words, the present invention provides an ice-making heat exchanger used in a heat storage tank for heating and cooling, in which a pipe in which four units constituting the ice-making heat exchanger are wound in a spiral is arranged horizontally. It is characterized by having an upward slope from the outer circumference toward the inner circumference.

Hereinafter, the present invention will be described in detail with reference to preferred embodiments thereof illustrated in FIGS. 3 and 1 of the accompanying drawings.

FIG. 3 is a plan view showing one of the units of the ice making type heat exchanger according to the preferred embodiment of the present invention, and as is clear from this figure, the pipe S forming this unit is one long pipe. The shaku is wound in a spiral. The material for this pipe is preferably an organic material that does not cause corrosion, and is preferably polyethylene, for example, to improve reliability. This noζ Eve! For example, the spacing of the spirals! ;cm or/r
The diameter of the outer peripheral part S-/ is, for example, about 2 m to 3 m.

This spiral pipe S is arranged substantially horizontally as a whole as shown in the side view of FIG.
-7 to the inner circumferential portion S-1 with an upward slope. A heat exchanger is formed by arranging a plurality of such units in a stack.

The outer circumference of the pipe 5 is connected to the inlet brine header 3, and the inner circumference of the pipe 5 is connected to the ladder 31 to the outlet brine.

According to the present invention, the long pipes are highly concentrated due to the spiral configuration as described above, and the units can be arranged close to each other, so that the heat transfer area is significantly increased, and the heat storage efficiency is significantly improved. Furthermore, since the number of connections can be minimized compared to the conventional example shown in FIG. 1, the possibility of liquid leakage is extremely reduced, and maintenance reliability is significantly improved.

Furthermore, compared to the conventional example shown in FIG. 1, it is possible to produce on-site instead of having to transport the product in a factory, which is extremely advantageous.

In particular, when considering installation inside a double underground slab of a building, there are restrictions on the size of one unit due to restrictions on the size of manholes, etc. However, according to the present invention, on-site construction is possible. It is possible to increase the size of the unit.

Further, according to the present invention, the horizontally arranged spiral coil is inclined upwardly from the outer circumference toward the inner circumference.

With this arrangement, it is possible to ensure that the air that has entered the pipes of the heat exchanger is removed to the header.

In this way, the amount of heat exchanged can be increased due to the absence of air in the heat exchanger pipes.

Considering the above-mentioned embodiment specifically, since an organic material is used as the material, it is easy to obtain a long length, and there is no fear of corrosion, so reliability is significantly improved.

Although the present invention has been described in detail above with reference to the preferred embodiment illustrated in the accompanying drawings, the present invention is not limited to this specific embodiment, and many changes and modifications can be made without departing from the spirit of the invention. Of course.

[Brief explanation of drawings]

Figures 1 and 2 are perspective views of the main parts of ice-making type heat exchangers used in different conventional heat storage tanks for heating and cooling, respectively, and Figure 3 is a perspective view of one of the ice-making type heat exchangers of the present invention/embodiment. A plan view of the unit, and FIG. S is a side view of the ice-making type heat exchanger of this embodiment. 3.31...Header, 5...Pipe, j-/-th"
Figure 3 Figure 4

Claims (1)

[Claims] In an ice-making type heat exchanger used in a heat storage tank for cooling and heating, a pipe in which the units that make up the ice-making type heat exchanger are wound in a spiral is arranged horizontally, and the pipes are arranged horizontally from the outer periphery of the spiral toward the inner periphery. An ice-making type heat exchanger characterized by having an upward slope.