JPH07318270A - Heat pipe structure - Google Patents

Abstract

PURPOSE:To demonstrate a superior cooling effect and a superior dehumidifying effect in the case that the heat pipe structure is applied in an air conditioner and the like. CONSTITUTION:A first plate part 1a of thin plate and a second plate 1b of thin plate are arranged side-by-side on the same plane so as to form one flat- surface like layer. Then, a plurality of upper and lower layers are arranged. A serpentine pipe at an evaporating part 4 and a pipe 8 for cooling coil for a heat exchanger are inserted into a plurality of first plates 1a. A serpentine pipe at the condensing part 5 is inserted into the plurality of second plates 1b.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a heat pipe structure.

[0002]

2. Description of the Related Art In recent years, for the purpose of improving the dehumidifying effect of an air conditioner, a heat pipe structure is sometimes provided in the air conditioner in addition to a cooling coil for the original cooling of the air conditioner.

[0003] In this type of heat pipe structure, for example, a block body formed by laminating a plurality of fins has the evaporation portion and the condensation portion of the heat pipe and the cooling coil pipe inserted therein. is there.

By the way, in the air conditioner using the above heat pipe structure, warm air coming into the air conditioner is cooled to some extent (preliminary cooling) by passing through the evaporator.
On the other hand, the working fluid in the evaporating section evaporates by the transfer of heat at that time. Further, the pre-cooled air is cooled by passing through the cooling coil, and the vaporized working liquid enters the condenser. The working fluid in the condenser is cooled by the air that has passed through the cooling coil, reheats the air, and liquefies. The liquefied working fluid returns to the evaporation section. Then, these operations are repeated, and the warm air becomes cold air and is discharged from this air conditioner.

That is, conventionally, as shown in FIG. 4, a pre-cooling section b, a cooling coil section c, and a reheating section d are formed by a single fin a (a plurality of fins a are laminated at a minute interval). ), The fins a are provided with slits e and the like in order to thermally separate the respective parts. Note that FIG.
In the above, f is a heat pipe, the evaporating part g is inserted into the preliminary cooling part b, and the condensing part h is inserted into the reheating part d. Further, the cooling coil pipe i is inserted into the cooling coil portion c.

[0006]

However, in the above-mentioned conventional apparatus, since the pre-cooling section b, the cooling coil section c, and the reheating section d are not separated, the air flows as indicated by the arrow k, The water droplets w condensed in the cooling coil part c move to the reheating part d via the bridging parts j ... And evaporate by the heat of the reheating part d to reduce the dehumidification effect or to reduce the heat of the reheating part d. Is transmitted to the cooling coil section c side. That is, the cooling efficiency and the dehumidifying efficiency are reduced.

Therefore, an object of the present invention is to provide a heat pipe structure which can obtain excellent cooling and dehumidifying effects without lowering the cooling efficiency and dehumidifying efficiency.

[0008]

In order to achieve the above object, in the heat pipe structure according to the present invention, the meandering evaporation portion side of the heat pipe and the cooling coil pipe of another heat exchanger are inserted. A thin plate-shaped first plate portion and a thin plate-shaped second plate portion through which the meandering condenser portion side of the heat pipe is inserted and which is separated from the first plate portion at a small interval on the same plane. The fins are formed side by side in parallel with each other to form a plurality of fins, and the fins are laminated at a minute interval.

At this time, it is preferable that the small distance between the first plate portion and the second plate portion is 2 to 3 mm, and it is also preferable that a block body having a plurality of fins stacked is held by a pair of end plates. .

[0010]

The fin is divided into the first plate portion and the second plate portion, and the water droplets condensed in the first plate portion are less likely to move to the second plate portion, and the heat of the second plate portion is not generated. Hard to reach the first plate.

[0011]

The present invention will be described in detail below with reference to the drawings illustrating the embodiments.

1 and 2 show a heat pipe structure according to the present invention, which is used, for example, in an air conditioner,
It is for improving the dehumidifying effect and dehumidifying capacity.

Thus, this heat pipe structure comprises a block body 2 in which a plurality of fins 1 ... Are laminated at a minute interval, and a heat pipe 3 inserted into the block body 2.

The heat pipe 3 includes a meandering evaporation part 4, a meandering condensation part 5, and an evaporation pipe 6 and a reflux pipe 7 which connect the evaporation part 4 and the condensation part 5 to each other.

That is, the evaporating section 4 and the condensing section 5 are formed of meandering pipes, and one end opening of the meandering pipe of the evaporating section 4 and one end opening of the meandering pipe of the condensing section 5 are connected by the evaporating pipe 6. The other end opening of the meandering pipe of the evaporator 4 and the other end opening of the meandering pipe of the condenser 5 are connected to each other through a reflux pipe 7.

Therefore, the working liquid evaporated in the evaporator 4 enters the condenser 5 via the evaporator 6, is condensed in the condenser 5, and returns to the evaporator 4 again via the reflux pipe 7.

Therefore, the fin 1 is composed of first and second plate portions 1a and 1b made of a thin plate metal such as aluminum, and the first plate portion 1a and the second plate portion 1b are arranged with a small interval A therebetween. They are arranged side by side on the same plane. A plurality of the fins 1 are stacked with a minute interval.

That is, the first plate portion 1a is inserted through the evaporation portion 4 side of the heat pipe 3 and the cooling coil pipe 8 of another heat exchanger, and the second plate portion 1b is connected to the condensing portion 5 of the heat pipe 3. The side is inserted.

Specifically, the evaporation portion 4 is provided on the first plate portion 1a.
Hole 9 through which the pipe for cooling is inserted, hole portion 10 through which the cooling coil pipe 8 of the cooling coil 14 is inserted, and the hole portion 9 and the hole portion.
The slit 11 provided between the
The plate portion 1b has a hole 12 through which a pipe for the condenser 5 is inserted.
Is installed throughout.

The small distance A between the first plate portion 1a and the second plate portion 1b is, for example, about 2 to 3 mm. Further, in order to provide the block body 2 formed by laminating a plurality of fins 1 ... With mechanical strength, as shown in FIG. 3, the block body 2 is made of a pair of materials having high mechanical strength. It is also preferable that the end plates 13 and 13 are held between them. The end plates 13 and 13 are provided with a hole through which the pipe for the evaporation unit 4 is inserted, a hole through which the cooling coil pipe 8 is inserted, a hole through which the pipe for the condensation unit 5 is inserted, and the like. It The size of the end plate 13 is substantially the same as that of the one-layer fin 1 including the first plate portion 1a and the second plate portion 1b, and the material thereof is specifically a galvanized steel plate. Or it is a pure aluminum plate. Further, the end plate 13 may be provided with slits in order to minimize heat transfer and water drop transfer.

Next, the operating principle when the heat pipe structure constructed as described above is used in an air conditioner will be described.

First, as indicated by an arrow X in FIG. 2, warm air is cooled (pre-cooled) to some extent by passing through the evaporation section 4 of the heat pipe 3, while the working fluid in the evaporation section 4 is cooled. It evaporates due to the exchange of heat. And
The pre-cooled air is further cooled by passing through the cooling coil 14.

Further, the vaporized working liquid enters the condenser 5 through the evaporation pipe 6. Then, the working fluid in the condenser 5 is cooled by the air that has passed through the cooling coil 14,
The air is reheated and liquefied. The liquefied working liquid returns to the evaporator 4 via the reflux pipe 7. Then, these operations are repeated, and the air that has entered this heat pipe structure as indicated by arrow X is cooled and exits this heat pipe structure as indicated by arrow Y.

However, pre-cooling immediately before passing through the cooling coil 14 can reduce the cooling load of the compressor of the heat exchanger of the cooling coil 14, and can also reduce the humidity by creating dry air, Further, it becomes easy to set the temperature of the thermostat in a higher region. Further, since the reheating can be performed, the reheating device generally used for controlling the humidity becomes unnecessary, and the energy consumed by the reheating device can be saved.

By the way, in dehumidification, air cooled to some extent in the pre-cooling section 15 (that is, the portion upstream of the slit 11) is introduced into the cooling coil 14 and supercooled below the dew point to condense moisture to cause water droplets 17 to drop. , And the supercooled air having a small amount of water is heated in the reheating unit 16 (that is, the second plate portion 1b side) to have an appropriate temperature and cold air is supplied.

Therefore, according to the heat pipe structure of the present invention, as shown in FIG. 1, the air flows as indicated by arrows X and Y, and the water droplets 17 ... Of the first plate portions 1a. Even when trying to move to the side of the portion 1b, since the small space A is provided between the first plate portion 1a and the second plate portion 1b, the water droplets 17 ... Do not move to the second plate portion 1b. That is, the dehumidifying effect is not reduced because the water droplets 17 are not evaporated by the heat of the reheating unit 16 configured by the second plate unit 1b.

The first and second plate portions 1a of each fin 1 are
Since 1b is separated, the heat on the reheating unit 16 side is not transferred to the cooling coil 14 side, and the cooling efficiency is not reduced.

The size and the number of the fins 1 can be freely changed, and the meandering pipes of the evaporation part 4 and the condenser part 5 are formed in a meandering shape by using two U-shaped pipes, respectively. However, it is also free to make a meandering shape by using one or three or more U-shaped pipes. In addition, the end plate
When using 13, the wall thickness of the end plate 13 can also be changed according to the mechanical strength of the held block body 2, the material used, and the like.

[0029]

Since the present invention is configured as described above, it has the following effects.

The fin 1 includes the first plate portion 1 a and the second plate portion 1
Since it is separated into b and b, the condensed water drop 17
Side, that is, the reheating unit 16 side is not moved, and the dehumidification efficiency is not reduced.

There is no transfer of heat due to direct heat transfer from the condenser section 5 side, that is, the reheating section 16 side to the cooling coil 14 side, and the cooling efficiency is not reduced.

When the block body 2 is held between the end plates 13 and 13, the block body 2 is reinforced,
It has excellent mechanical strength as a whole.

[Brief description of drawings]

FIG. 1 is a simplified plan view showing an embodiment of the present invention.

FIG. 2 is a partially omitted simplified perspective view.

FIG. 3 is a simplified perspective view showing a block body and an end plate.

FIG. 4 is a simplified plan view showing a conventional example.

[Explanation of symbols] 1 fin 1a 1st plate part 1b 2nd plate part 3 heat pipe 4 evaporation part 5 condensation part 8 cooling coil piping 13 end plate

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location F25B 39/02 Z

Claims (3)

[Claims] 1. A thin plate-shaped first plate portion through which a meandering evaporation portion side of a heat pipe and a cooling coil pipe of another heat exchanger are inserted, and a meandering condensation portion side of the heat pipe is inserted. In addition, a thin plate-shaped second plate portion that is separated from the first plate portion at a small interval is arranged in parallel on the same plane to form a fin, and a plurality of fins are laminated at a minute interval. Heat pipe structure characterized by. 2. The small gap between the first plate portion and the second plate portion is 2 to 3
The heat pipe structure according to claim 1, which has a size of mm. 3. The heat pipe structure according to claim 1, wherein a block body formed by laminating a plurality of fins is sandwiched between a pair of end plates.