KR101188500B1 - Heat-exchanger between tubes - Google Patents

Abstract

The heat exchanger between conduits according to the present invention comprises: a first fluid pipe through which a first fluid flows; A second fluid tube through which the second fluid flows; A pin in contact with the first fluid tube and the second fluid tube; And a blowing fan for forcibly blowing air to the fluid pipe, wherein the first fluid pipe is disposed at both ends of the fin, and the second fluid pipe is disposed at the center of the fin. The surface connecting the flow path and the surface connecting the flow path of the second fluid are characterized in that they cross each other.

According to the heat exchanger between pipelines according to the present invention, since the heat exchanger performance is increased without increasing the size of the heat exchanger, even if the heat exchanger size is small, there is an advantage of obtaining the same or higher heat exchange performance and the heat exchanger is mounted. Since the operating state of the heat exchange can be smoothly changed according to the specification of the system to be operated, it is possible to operate in more various states, and it is possible to obtain an advantage that a separate heat exchanger is not required for each system.

Heat exchanger, pipeline

Description

Heat-exchanger between tubes}

1 is a view for explaining heat exchange between pipelines according to the present invention.

FIG. 2 is a cross-sectional view of II ′ of FIG. 1. FIG.

3 is a view for explaining another embodiment according to the present invention.

4 illustrates another embodiment according to the present invention.

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

1 heat exchanger 2 first fluid pipe 3 second fluid pipe

4: pin 5: blowing fan

The present invention relates to a heat exchanger, and more particularly, to a heat exchanger between pipes in which heat exchange is performed between pipe lines when a plurality of pipes having different kinds of refrigerant flow are provided. More specifically, when the heat exchange between the refrigerant pipes is carried out, the heat exchange method between conduction and the convection heat transfer method by air is performed at the same time, so that the heat exchange between the refrigerant pipes to the heat exchanger between the pipelines to be carried out more quickly and large capacity It is about.

A heat exchanger is a device that allows heat exchange between fluids. In particular, a representative example of the heat exchanger between pipe lines is a double tube heat exchanger. The double tube heat exchanger is a heat exchanger in which an outer tube and an inner tube accommodated in the outer tube are formed, and a first fluid flowing inside the outer tube and a second fluid flowing in the inner tube interface the outer wall of the inner tube. Heat exchanger to perform the heat exchange.

Since the double tube heat exchanger performs heat exchange with the outer wall of the inner tube as an interface, there is only a method of increasing the size of the double tube heat exchanger or increasing the length of the double tube in order to increase the efficiency of the heat exchange.

However, increasing the length of the double tube heat exchanger or increasing the size of the double tube heat exchanger has a problem that practical implementation is difficult due to the problem of volume.

The present invention is proposed to improve the above-mentioned problems, and an object of the present invention is to propose a heat exchanger between pipe lines in which a heat exchanger does not increase in size but the performance of heat exchange is increased.

In addition, an object of the present invention is to propose a heat exchanger between pipe lines which enables the operation state of the heat exchange to be smoothly operated according to the required specification of the heat exchanger, thereby enabling operation in a more various state.

The heat exchanger between conduits according to the present invention comprises: a first fluid pipe through which a first fluid flows; A second fluid tube through which the second fluid flows; A pin in contact with the first fluid tube and the second fluid tube; And a blowing fan for forcibly blowing air to the fluid pipe, wherein the first fluid pipe is disposed at both ends of the fin, and the second fluid pipe is disposed at the center of the fin. The surface connecting the flow path and the surface connecting the flow path of the second fluid are characterized in that they cross each other.

It is possible to obtain the advantage that the heat exchange performance is increased by the heat exchanger between the pipelines as proposed. In addition, it is possible to conveniently switch to an appropriate operating state in accordance with the requirements of the heat exchange, it is possible to obtain the advantage that the use of the heat exchanger is convenient.

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings. However, the spirit of the present invention is not limited to the embodiments presented, and those skilled in the art who understand the spirit of the present invention can easily propose by adding, changing, deleting, and adding components within the scope of the same idea. will be.

1 is a view for explaining heat exchange between pipelines according to the present invention.

Referring to FIG. 1, the heat exchanger 1 between pipe lines according to the present invention includes a first fluid tube 2 through which a first fluid flows, and a second fluid tube 3 through which a second fluid flows. And a pin 4 having at least one portion in contact with the first fluid pipe 2 and the second fluid pipe 3 at the same time. Further, a blowing fan 5 is further provided to force the blowing to the pin 4.

The operation of the heat exchanger between the pipe lines will be described.

The first fluid flows through the first fluid pipe 2, and the second fluid flows through the second fluid pipe 3. The heat is radiated in one of the first fluid pipe 2 and the second fluid pipe 3, and the other is operated in the direction of absorbing heat. In addition, there are two paths in which heat is transferred from the heat dissipating tube dissipating heat to the heat absorbing tube dissipating heat.

In detail, first, heat emitted from the heat dissipation tube is conducted to the fins 4, heat transmitted to the fins is transferred to the endothermic tube along the inside of the fin, and heat reaching the endothermic tube is conducted to the endothermic tube. Enter This process can be understood as the conduction process through its own medium forming the heat absorbing tube, the fin, and the heat dissipating tube.

Another heat transfer process is the convection transfer process. Specifically, in the case where the heat absorbing tube is the first fluid tube 2 and the heat dissipating tube corresponds to the second fluid tube 3, the air forcedly blown from the blower fan 5 firstly receives the first fluid tube 2. Heat is transferred to the first fluid, and the air cooled by the first fluid pipe (2) reaches the second fluid pipe (3) so that the second fluid pipe (3) The heat is taken away from the second fluid flowing inside. By this process, the endothermic tube absorbs heat and the process of radiating heat to the heat radiating tube can be performed. This process can be easily understood as an air-borne convective transfer process.

As another case, it is also possible to obtain the effect that the heat of the fluid pipes (2) (3) is self-heating irrespective of each other by the forced air blown from the blowing fan (5). For example, when no fluid flows inside the first fluid pipe 2 and only the second fluid pipe 3 flows, the air forcedly blown from the blower fan 5 is the second fluid pipe. The heat exchange may be performed so that only heat transfer to the second fluid flowing in the interior is performed strongly.

Of course, even when the fluid flows simultaneously inside the first fluid pipe 2 and the second fluid pipe 3, not only heat transfer occurs but also by the forced air flow from the blower fan 5, respectively. It will also be easily guessed that heat exchange of the fluid pipes 2 and 3 of the pump is facilitated.

Hereinafter, the arrangement of the pipe line will be described.

FIG. 2 is a cross-sectional view of II ′ of FIG. 1.

Referring to FIG. 2, the fins 4 are arranged in a plane, and the first fluid pipe 2 passes through the heat transfer lines of the fins, and the second fluid passes through the heat pipes. The tube 3 is arrange | positioned. In other words, the first fluid pipe 2 is disposed in the heat transfer of the fin 4 on the basis of the blowing fan 5, and the second fluid pipe 3 is disposed in the heat transfer of the fin 4.

In addition, as shown in the figure, the conduits arranged in the rear row of the pins 4 may be arranged to overlap each other in a plurality of arrangement states by bending up and down. Multiple arrangements of such pipelines are not related to heat transfer or heat transfer. And the number of overlappings of pipelines is not limited. However, it is important that the heat transfer by air is more effectively performed by arranging the pipes into the heat transfer and the after heat.

In Fig. 3 another embodiment according to the invention is shown.

Referring to FIG. 3, in another embodiment of the present invention, the first fluid pipe 2 is disposed at both ends of the fin 4, and the second fluid pipe 3 is disposed at the center of the fin 4. It features. That is, the first fluid pipe 2 is disposed before and after the second fluid pipe 3, the surface connecting the flow path of the first fluid and the surface connecting the flow path of the second fluid is Can cross each other.

Due to this feature, it is possible to obtain the advantage that the inlet and outlet positions between the fluids can be freely arranged, there is an advantage that the heat exchange between the two fluids can be performed more reliably.

Hereinafter, a case in which a heat exchanger between pipe lines according to the present invention is applied to an actual system will be described.

The first fluid pipe 2 is a conduit pipe condensing the high temperature cooling water of the engine power generation system, and the second fluid pipe 3 may be described as an example of the pipe of the evaporator of the heat pump. In this case, the first fluid pipe 2 is a pipe line for dissipating heat from the condenser, and the second fluid pipe 3 is a pipe line for absorbing heat as an evaporator.

At this time, since the air blown from the blowing fan 5 reaches the second fluid pipe 3 after passing through the first fluid pipe 2, heat exchange between the fluid pipes 2 and 3 can be performed. Can be. In addition, each fluid pipe 3 may have the effect that the heat exchange is more smoothly performed individually by air as described above.

Hereinafter, the operation state of the heat exchanger between pipe lines according to the present invention will be described in detail for each case.

First, the blower fan is operated, and fluid flows through the first fluid pipe 2 and the second fluid pipe 3.

In this case, the heat exchange is performed by each of the fluid pipes 2 and 3 and the blown air, and the heat quantity of the first fluid pipe 2 is transferred to the second fluid pipe 3 by the blown air. Both the effect and the effect that the heat of the first fluid pipe 2 is transferred to the second fluid pipe 3 by the fins 4 can be obtained. In this case, it is possible to obtain the advantage that the heat transfer effect between the fluid pipes (2) (3) is increased.

Secondly, the blower fan is operated, and fluid flows through any one of the first fluid pipe 2 and the second fluid pipe 3.

In this case, the heat transfer is performed by the air in which the fluid tube flowing the fluid is blown, and the heat of the fluid pipe in which the fluid flows is transferred to the fins 4 so that heat is convection transferred to the air by the fins. Can be obtained at the same time.

Thirdly, the fluid flows through both the first fluid pipe 2 and the second fluid pipe 3 while the blowing fan is not operated.

In this case, heat is transferred to the fins 3 from the pipeline having a high temperature among the fluid tubes 2 and 3, and heat is transferred through the fins, so that heat is transferred to the pipeline having a low temperature. In this case, the effect of heat transfer may be insignificant, but by applying it when there is not enough space for installing the blower fan, the unique effect can be obtained.

According to various embodiments of the present invention, the operation of the heat exchanger may be differentially operated in various cases. In addition, of course, the effect of heat transfer is further enhanced. In particular, when the required heat transfer amount is high, since the additional heat transfer effect can be obtained by the blowing fan 5, it is possible to obtain the advantage that the effect of heat transfer becomes higher.

Another embodiment according to the same idea as the present invention will be described.

Other embodiments are the same as the original embodiment of the other parts, only the mounting state of the blowing fan (5) is different.

4 is a view for explaining another embodiment according to the present invention.

Referring to FIG. 4, the first fluid pipe (4), the first fluid pipe (2), and the second fluid pipe (3) are formed in the same manner as the original embodiment and are placed in the heat transfer of the fin (4). 2) and the air forced to the second fluid pipe (3) in which the fin (4) is placed in the rear row is characterized in that the convection heat transfer is carried out by a separate blower fan (6) (7).

In this way, since the blower fan is different so that the convective heat transfer of the respective fluid pipes 2 and 3 is performed, air is not blown to one fluid pipe and air is not blown to the other fluid pipe depending on a certain state. It may work.

In this embodiment, although the problem that the convective heat transfer is not performed from one fluid pipe to the other fluid pipe may be eliminated, it is possible to obtain an advantage that individual convective heat transfer may be performed for each fluid pipe. .

In such a case, due to the requirements of the system, the heat transfer between the fluids can be applied when the conduction heat transfer by the fin is sufficient and the convection heat transfer by the blown air is not necessary. At this time, the blower fan corresponding to the fluid pipe requiring convective heat transfer is operated to perform convection cooling, and the corresponding blower fan is not operated for the fluid pipe not requiring convective heat transfer. The advantage is that you can respond accurately.

In another embodiment, cooling may be performed individually by a blower fan in the absence of convective heat transfer between both fluid tubes.

According to the heat exchanger between pipe lines according to the present invention, since the heat exchanger performance is increased without increasing the size of the heat exchanger, even if the size of the heat exchanger is small, there is an advantage that the equivalent or higher heat exchange performance can be obtained.

In addition, since the operating state of the heat exchanger can be smoothly changed according to the specification of the system on which the heat exchanger is mounted, it is possible to operate in more various states and obtain an advantage that a separate heat exchanger is not required for each system.

Claims (5)

A first fluid tube through which the first fluid flows; A second fluid tube through which the second fluid flows; A pin in contact with the first fluid tube and the second fluid tube; And A blowing fan for forcibly blowing air to the fluid pipe, The first fluid pipe is disposed at both ends of the fin, the second fluid pipe is disposed at the center of the fin, And a surface connecting the flow path of the first fluid and a surface connecting the flow path of the second fluid intersect each other. The method of claim 1, The blower fan is a heat exchanger between the conduit is forcedly blown to the first fluid pipe and the second fluid pipe at the same time. The method of claim 1, The blower fan is a heat exchanger between the one of the fluid pipe and the pipe line for blowing air to reach the other fluid pipe heat exchanged air. The method of claim 1, The blower fan is a heat exchanger between the pipe lines are provided separately for each fluid pipe. delete

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