KR20110025400A - Pipe for heat transfer - Google Patents

Abstract

PURPOSE: A heat exchange pipe for heat exchange, efficiently performing the heat exchange among fluids, is provided to reduce the capacity of a pump and the diameter of the pipe and to increase profitability. CONSTITUTION: A heat exchange pipe for heat exchange comprises a first pipe(110), a second pipe(120), and a cover member(130). The second pipe has a face contact part(121) formed on the site adhering closely to the first pipe. The face contact part has the shape corresponding to the outer side surface of the first pipe. The cover member protects the first pipe and the second pipe. The cover member is made of an insulation material.

Description

Heat exchange pipe {PIPE FOR HEAT TRANSFER}

The present invention relates to a heat exchange pipe that allows the heat exchange between the fluids to be carried out efficiently and the pipes through which the fluids respectively move are in close contact with each other.

Generally, ships use a system that heats cylinder lubricating oil using the heat of the coolant after the engine has cooled.

The system using the waste heat of the engine coolant uses a pipe in which heat exchange occurs between the coolant and the lubricating oil, which will be described below with reference to the accompanying drawings.

1 is a cross-sectional view showing a heat exchange pipe according to the prior art. As shown, the heat exchange pipe 10 according to the prior art contacts the coolant pipe 11 having a relatively small diameter with the lubricating oil pipe 12 having a relatively large diameter and wraps it with a tape 13 to prevent cooling of the engine. After finishing the cooling water having a heat of 60 ~ 70 ℃ circulated along the cooling water pipe 11 to the lubricant of the cylinder supplied along the lubricating oil pipe 12 to heat to about 40 ℃ by heat exchange.

As described above, in the heat exchange pipe according to the related art, since the coolant pipe and the lubricating oil pipe are in line contact with each other, the heat of the high temperature coolant is not efficiently transferred to the lubricating oil as shown in FIG. It was low and had a problem that makes it difficult to supply the lubricant smoothly.

In addition, since the coolant pipe and the lubricating oil pipe are arranged side by side in line contact with each other, the contact positions of the coolant pipes and the lubricating oil pipes are easily changed, causing problems in stable installation and easy piping.

This problem applies equally to pipes used for heat exchange between other fluids as well as pipes for heat exchange of coolant and lubricant.

The present invention has been made to solve the above problems, the heat exchange between the fluid is made to be efficient, and the pipes through which the fluids respectively move so as to be in close contact with each other stably to facilitate the installation and piping.

The heat exchange pipe according to the present invention is a pipe for allowing heat exchange between fluids, the first pipe providing a path through which one of the fluids moves, and the other one of the fluids in close contact with the first pipe. Provide a path through which the fluid flows, the second pipe having a surface contact portion having a shape corresponding to the outer surface of the first pipe at a portion in close contact with the first pipe, and surrounding the first and second pipes; It includes a cover member is installed.

The present invention allows efficient heat exchange between the fluids, thereby reducing the diameter of the pipe or the capacity of the pump, thereby improving economic efficiency, and allowing the pipes in which the fluids move to each other to stably adhere to each other. This has the effect of facilitating this.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In addition, in describing the present invention, when it is determined that the detailed description of the related known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

Figure 3 is a front sectional view showing a heat exchange pipe according to an embodiment of the present invention. As shown, the heat exchange pipe 100 according to an embodiment of the present invention is in close contact with the first pipe 110, parallel to the first pipe 110, and also in close contact with the first pipe 110 It may include a second pipe 120, the surface contact portion 121 is formed in the cover member 130 is installed to surround the first and second pipes (110, 120).

The first and second pipes 110 and 120 provide a path through which the low-temperature fluid and the high-temperature fluid move, respectively, which require heat exchange, and the fluid may be a gas as well as a liquid, for example, requiring heating to facilitate flow. The coolant of the cylinder and the high temperature coolant after the cooling of the engine may be provided to move, respectively, and the diameters may be the same or different from each other, and may be manufactured to have an appropriate diameter according to the amount of the flowing fluid.

The first pipe 110 may be formed of a circular pipe having a circular cross section in order to facilitate manufacturing and piping.

The second pipe 120 is in close contact with the first pipe 110 to provide a path through which the fluid requiring heat exchange with the fluid moving along the first pipe 110 moves, but not on the first pipe 110. The surface contact portion 121 having a shape corresponding to the outer surface of the first pipe 110 is formed in the close contact portion.

The surface contact part 121 has a shape corresponding to the outer surface of the first pipe 110 so that the second pipe 120 is in surface contact with the first pipe 110 in parallel with each other, and the second pipe The first pipe 110 may be formed in some or all of the lengths in the lengthwise direction of the 120, and the first pipe 110 may have a curvature corresponding to an outer surface of the first pipe 110 when the first pipe 110 is formed of a circular pipe. Surface contact with the outer surface of the

The cover member 130 is installed to cover the outside of the first and second pipes 110 and 120 so that the first and second pipes 110 and 120 are in close contact with each other so that the first and second pipes 110 and 120 are in close contact with each other. It may serve to maintain, and may be made of a heat insulating tape made of a heat insulating material in order to block the heat loss of the first and second pipes (110, 120).

Meanwhile, in the heat exchange pipe 100 according to the present invention, each of the first and second pipes 110 and 120 may be directly connected to the external fluid transfer pipes 210 and 220 by changing the shape or structure of the end. As shown in FIG. 4, the first and second pipes 110 and 120 may further include a socket 140 for connecting the external fluid transfer pipes 210 and 220, respectively.

The socket 140 has various structures for mediating the external fluid transfer pipes 210 and 220 to be connected to the first and second pipes 110 and 120, respectively, in order to supply or discharge fluid to the first and second pipes 110 and 120, respectively. For example, it is coupled to maintain the airtight at the ends of the first and second pipes (110, 120), respectively connected to the first and second pipes (110, 120) to protrude to the outside by the external fluid transfer pipe (210,220) ) May be provided with first and second connectors 141 and 142.

The socket 140 may be provided with a sealing member (not shown) for hermetic sealing at the coupling portion of the first and second pipes 110 and 120, and as shown in FIG. 5, the first pipe 110 therein. And a first flow path 143 connecting the first connection part 141 to each other, and a second flow path 144 connecting the second pipe 120 and the second connection part 142 to each other.

Referring to the operation of the heat exchange pipe according to the present invention having such a configuration as an example.

When the lubricating oil of a fluid, for example, a cylinder that needs to be heated, flows through the first pipe 110, another fluid, for example, a high-temperature coolant after the cooling of the engine flows through the second pipe 120, thereby exchanging heat with each other. This raises the temperature of the lubricating oil and lowers the temperature of the cooling water. In this case, the contact area between the first and second pipes 110 and 120 is increased by the surface contact part 121, thereby increasing the heat energy exchanged between the lubricating oil and the cooling water, thereby increasing the efficiency of heat exchange.

Therefore, the fluid can easily reach the desired temperature by heat exchange, and due to the increase in the heat exchange efficiency, it is possible to reduce the diameter or the use or thickness of the cover member 130 for thermal insulation or the first or second pipes 110 and 120. Furthermore, it is possible to reduce the capacity of the pump to provide a pumping force for the transfer of fluid to increase the economics.

In addition, the second pipe 120 is stably in close contact with the first pipe 110 by the surface contact portion 121 so that it is not easily separated from the fixed position of the first pipe 110, the installation of the heat exchange pipe 100 And to facilitate the piping work.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art. And will be included in the described technical idea.

1 is a cross-sectional view showing a heat exchange pipe according to the prior art,

Figure 2 is an image showing the result of the numerical analysis of the temperature of the heat exchange pipe according to the prior art,

Figure 3 is a front sectional view showing a heat exchange pipe according to an embodiment of the present invention,

4 is a perspective view showing a part of a heat exchange pipe according to an embodiment of the present invention;

5 is a side cross-sectional view showing a portion of a heat exchange pipe according to an embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

110: first pipe 120: second pipe

121: surface contact portion 130: cover member

140: socket 141: first connection portion

142: second connecting portion 143: first flow path

144: second flow path 210 220: fluid transfer pipe

Claims (4)

A pipe for heat exchange between the fluids, A first pipe providing a path through which any one of the fluids moves; The surface contact part having a shape corresponding to the outer surface of the first pipe is formed in a portion in close contact with the first pipe to be in close contact with the first pipe to move the other one of the fluid. With the second pipe, A cover member installed to surround the first and second pipes Pipe for heat exchange comprising a. The method of claim 1, The surface contact portion, A heat exchange pipe having a curvature to be in surface contact with an outer surface of the first pipe formed of a circular pipe. The method of claim 1, The cover member, Wrapping the first and second pipes to be in close contact with each other, heat insulating pipe made of a heat insulating material. 4. The method according to any one of claims 1 to 3, Coupled to the ends of the first and second pipes to be kept airtight, the first and second connecting portions which are connected to the first and second pipes, respectively, protrude outward to connect the external fluid transfer pipe is provided socket Pipe for heat exchange further comprising.

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