KR20020094100A - Heat exchanger with heat exchange drum - Google Patents

Abstract

PURPOSE: A heat exchanger with heat exchange drum is provided to transfer heat so that temperatures of introduced outdoor air and indoor air are similar. CONSTITUTION: A heat exchanger includes a drum(40) rotating around a central axis; a housing(30) covering the drum; an inside partition(21) partitioning an inside of the drum into two partitioned chambers; two outside partitions(25) partitioning a space formed between an outside of the drum and an inside of the housing into two partitioned chambers; and pipings(11,12,13,14) formed in the partitioned chambers, respectively. An end of the first partition and ends of the outside partitions are placed as close as possible with the drum interposed.

Description

Heat exchanger with heat exchange drum

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat exchanger, and more particularly, to a heat exchanger having a heat exchange drum for transferring heat retained in a fluid flowing from a high temperature portion to a low temperature portion in a fluid exchange between a low temperature portion fluid and a high temperature portion fluid. will be.

As industrial civilization evolved, many air-conditioning and heating devices have been developed to maintain indoor temperatures suitable for human life. These air conditioning units are installed to match the temperature suitable for the growth of not only humans, but also livestock and cultivated crops. In particular, the temperature and humidity in the mushroom cultivator has a great influence on the mushroom growth, and various air conditioning and ventilation systems are installed for the air temperature and ventilation in the mushroom cultivator.

In general, edible mushrooms such as shiitake mushrooms, enoki mushrooms, mushroom mushrooms, oyster mushrooms, ganoderma lucidum mushrooms and mulberry mushrooms have different environmental conditions such as temperature, humidity, ventilation and light in the mushroom cultivation room. Since only cultivation is possible under the appropriate conditions, various air-conditioning and ventilation devices are installed in the mushroom cultivation room to maintain suitable environmental conditions as described above.

For example, there are some differences depending on the type of mushroom, but the edible mushrooms such as shiitake mushroom, enoki mushroom, mushroom mushroom, oyster mushroom, ganoderma lucidum mushroom, mulberry mushroom and the like are about 65-70% at the time of spawn culture. Humidity should be maintained, and when the mushrooms germinate, the humidity should be maintained at 85 ~ 95%, and when the mushrooms are grown, the cultivation environment should be changed according to the mushroom growth. Good quality mushroom cultivation is possible.

On the other hand, as the mushroom grows, it generates oxygen such as carbon dioxide (CO ₂ ) and ammonia (NH ₃ ) while consuming oxygen due to the aerobic nature of the mushroom, and the amount of other gases other than oxygen is lowered while the amount of oxygen in the mushroom cultivation chamber is lowered. In addition, the gas other than oxygen acts as a hormone for maturation of the mushroom, but also has a double-sided characteristic that causes the mushroom's outer appearance to deteriorate the quality of the mushroom. Do.

As such, when the air in the mushroom cultivation room and the outdoor air are ventilated, the air in the mushroom cultivation room is affected by the temperature of the outdoor air, and in order to maintain the indoor air temperature at an appropriate temperature, a cooling and heating system installed in the mushroom cultivation room. There is a disadvantage that the operation to maintain the proper temperature.

The present invention has been proposed in order to solve the problems of the prior art as described above, the outdoor air introduced through the heat exchange between the indoor air discharged and the outdoor air introduced in the ventilation of the indoors by introducing the outdoor air into the room It is an object of the present invention to provide a heat exchanger having a heat exchange drum which transfers heat such that the temperature is similar to that of indoor air.

1 is a perspective view of a heat exchanger having a heat exchange drum according to an embodiment of the present invention,

2 is an exploded perspective view of the heat exchanger shown in FIG. 1,

3 is a side cross-sectional view of the heat exchanger shown in FIG. 1,

4 is a cross-sectional view for explaining the air flow relationship of the heat exchanger shown in FIG.

5 is an exploded perspective view of the drum shown in FIG.

6 is a cross-sectional view showing a state in which a rubber separator is installed in place of the roller shown in FIG.

FIG. 7 is a graph showing a temperature gradient which changes along the thickness of the drum illustrated in FIG. 1.

♠ Explanation of symbols on the main parts of the drawing ♠

10: heat exchanger 11-14: piping

21: internal separator plate 22, 27: roller

25: external separator 30: housing

40: drum 41, 45: outer layer

43: middle layer 60: motor

65: fan 69: rotating plate

According to the present invention for achieving the object as described above, in the heat exchanger used for heat exchange between the fluid exchanged between the hot portion and the cold portion, a drum rotatable around a central axis, a housing surrounding the drum, A first partition wall dividing the interior of the drum into two compartments, a second partition wall dividing a space formed between an outer surface of the drum and an inner surface of the housing into two compartments, and at least one formed in each of the compartments A heat exchanger is provided that includes pipes, wherein an end portion of the first partition wall and an end portion of the second partition wall are arranged at a closest distance with the drum interposed therebetween.

Preferably, the drum is disposed in the vertical direction inside the housing, a rotating plate for supporting and rotating the drum is disposed inside the housing, and a motor for rotating the rotating plate is disposed outside the housing. do.

In addition, the pipes formed in the compartments are the indoor air inlet pipe for guiding the inflow of the indoor air, the indoor air discharge pipe for discharging the indoor air to the outside, the outdoor air inlet pipe for introducing the outdoor air, and the It may be an outdoor air discharge pipe for discharging outdoor air indoors. The indoor air introduced through the indoor air inlet pipe is introduced into one of two compartments divided by the first partition wall, and the air discharged through the outdoor air discharge pipe is divided by the first partition wall. The air discharged from the other compartment and discharged through the indoor air discharge pipe is discharged from any one of two compartments divided by the second partition wall, and the air introduced through the outdoor air inlet pipe is It enters another compartment divided by two partitions.

In addition, the pipes formed in the compartments are the indoor air inlet pipe for guiding the inflow of the indoor air, the indoor air discharge pipe for discharging the indoor air to the outside, the outdoor air inlet pipe for introducing the outdoor air, and the It may be an outdoor air discharge pipe for discharging outdoor air indoors. The outdoor air introduced through the outdoor air inlet pipe is introduced into one of two compartments divided by the first partition wall, and the air discharged through the indoor air discharge pipe is divided by the first partition wall. The air discharged from the other compartment and the air discharged through the outdoor air discharge pipe are discharged from any one of two compartments divided by the second partition wall, and the air introduced through the indoor air inlet pipe is It enters another compartment divided by two partitions.

Preferably, the drum is formed of synthetic resin fibers entangled with each other to form a porous body.

More preferably, the inside of the drum of the present invention is located a first outer layer having the same mesh structure as the inner shape of the drum, the outer side of the drum is a second outer layer having the same mesh structure as the outer shape of the drum In this position, the drum is supported by the first and second sheath layers.

In addition, the first and second partitions are provided with rollers in contact with the drum to freely rotate the drum, and blocks the air flow between the drum and the first and second partitions.

In addition, a lip member is installed on the first and second partitions to contact the drum to block air flow between the drum and the first and second partitions.

In addition, according to the present invention, in the heat exchanger drum used in the heat exchanger that allows heat exchange between the fluids exchanged between the hot and cold portion, it is formed of a heat exchangeable material that absorbs heat from the fluid and discharges the heat to the fluid A heat exchange drum formed of a porous body for smoothly passing the fluid inside and outside the drum in both directions is provided.

Preferably, the drum is additionally attached to both sides of the porous body to further include an outer skin layer defining an inner surface and an outer surface of the heat exchange drum, the outer skin layer is formed of a porous body for smoothly passing the fluid.

In the following, with reference to the accompanying drawings a preferred embodiment of a heat exchanger having a heat exchange drum according to the present invention will be described in detail.

1 is a perspective view of a heat exchanger having a heat exchange drum according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of the heat exchanger shown in FIG. 1, and FIG. 3 is a heat exchanger shown in FIG. 1. 4 is a cross-sectional view for explaining the air flow relationship of the heat exchanger shown in FIG. 1, FIG. 5 is an exploded perspective view of the drum shown in FIG. 2, and FIG. 6 is a roller shown in FIG. Is a flat cross-sectional view showing a state in which the rubber separator is installed in place of, Figure 7 is a graph showing a temperature gradient that changes along the thickness of the drum shown in FIG.

1 to 3, the heat exchanger 10 according to this embodiment has a cylindrical drum 40 having a predetermined thickness. The drum 40 is installed in the housing 30 with both ends closed, and is rotated by the motor 60. In addition, the heat exchanger 10 has an inner separation plate 21 having a width and a length substantially equal to the inner diameter and the inner length of the drum 40 and separating the inside of the drum 40 into two compartments 51 and 52. Have In addition, the heat exchanger 10 is fixed to the inner side of the housing 30 and extends toward the drum 40 and is located on the same plane as the inner separator 21 so that the heat exchanger 10 is disposed between the drum 40 and the housing 30. It includes two outer separator plates 25 that separate the space into two compartments 53, 54.

The wall of the drum 40 has an intermediate layer 43 forming a thickness portion as shown in FIG. 5 and two envelope layers 41 and 45 attached to both sides of the intermediate layer 43. The intermediate layer 43 of the drum 40 has a porous structure in which short yarns made of polypropylene (PP) are entangled and bonded. The first envelope layer 41 of the drum 40 forms the inner surface of the drum 40, and the second envelope layer 45 forms the outer surface of the drum 40.

In the heat exchanger 10 according to this embodiment, the housing 30 has a rectangular parallelepiped shape. The two outer separator plates 25 described above extend from the inner surface of the housing 30 to the outer surface of the drum 40, and the outer surface of the drum 40 and the ends of the outer separator plate 25 may block the passage of fluid. Close enough to be able to, but relative movement is possible. At least one roller 27 is installed at an end of the outer separator plate 25 in close contact with the outer surface of the drum 40 to facilitate the relative movement of the drum 40 with respect to the outer separator plate 25, while the drum 40 is smooth. It is good to maintain the position so that it can stably rotate in position.

The inner separation plate 21 described above is disposed inside the drum 40 in a state of being fixed to the upper plate 31 of the housing 30, and both ends of the inner separation plate 21 are disposed on the inner surface of the drum 40. While close enough to block the passage of the fluid, the inner separation plate 21 and the drum 40 can be relative movement.

And, the inner surface of the housing 30, the rotating plate 69 is located, the upper surface of the rotating plate 69 is formed with a circular groove, such as the outer diameter of the drum (40). The rotating shaft of the motor 60 is fixed to the lower surface of the rotating plate 69 through the lower surface of the housing 30, and the drum 40 is seated and fixed in the circular groove of the rotating plate 69. Therefore, the drum 40 rotates by driving the motor 60.

By the above configuration, the first compartment 51 and the second compartment 52 are formed inside the drum 40, and the third compartment 53 is disposed between the outer surface of the drum 40 and the inner surface of the housing 30. And a fourth compartment 54 is formed.

Preferably, the fluid flow between the first compartment 51 and the second compartment 52 is completely blocked, and the fluid flow between the third compartment 53 and the fourth compartment 54 is also completely blocked.

Each of the compartments 51, 52, 53, and 54 is provided with one pipe 11, 12, 13, 14, respectively, connected to a low temperature portion or a high temperature portion where fluid exchange is required.

In this embodiment, the pipes 11 and 12 of the first compartment 51 and the second compartment 52 formed inside the drum 40 have an upper plate () of the housing 30 closing the top of the drum 40. 31). Pipes 13 and 14 of the third compartment 53 and the fourth compartment 54 are installed on the outer wall of the housing 30, and pipes 11 and 12 of the first compartment 51 and the second compartment 52 are provided. ) Is preferably spaced apart from the position where it is formed.

Hereinafter, the operation of the heat exchanger 10 according to this embodiment will be described. Here, it is assumed that this heat exchanger 10 is used for exchanging the air of a mushroom cultivation greenhouse with the outdoor air.

Since the temperature of the mushroom cultivation greenhouse is required to maintain an appropriate temperature, and the outdoor temperature changes according to the season, the indoor may be a hot part, the outdoor may be a cold part, or vice versa, depending on the season.

Here, the case where an indoor is a low temperature part and an outdoor is a high temperature part is demonstrated.

For convenience, the pipe that extends into the room and sucks the indoor air into the first compartment 51 in the drum 40 is referred to as a 'first pipe 11', and the air is flowed from the second compartment 52 in the drum 40 to the room. The pipe for discharging the gas is called the 'second pipe 12', and the pipe which extends to the outside and sucks the outdoor air into the third compartment 53 between the housing 30 and the drum 40 is called 'third pipe ( 13) ', a pipe for discharging air from the fourth compartment 54 between the housing 30 and the drum 40 to the outside is referred to as a' fourth pipe 14 '.

It is assumed that the temperature of the indoor air, which is a low temperature part, is 18 ° C, and the temperature of the outdoor air, which is a high temperature part, is 30 ° C.

As shown in FIG. 4, indoor air at 18 ° C. flows into the first compartment 51 inside the drum 40 through the first pipe 11 and passes through the wall of the drum 40 to the fourth compartment 54. After being discharged to), it is discharged to the outside through the fourth pipe 14. The outdoor air at 30 ° C. flows into the third compartment 53 through the third pipe 13 and moves to the second compartment 52 inside the drum 40 through the wall of the drum 40. It is discharged into the room through the pipe (12).

As above, the drum is rotating at a substantially constant speed while the air is being exchanged.

The temperature gradient of the intermediate layer 43 of the wall of the drum 40 rotating while the operation of the heat exchanger 10 is maintained for a sufficient time is as shown in FIG.

In Figure 7, the horizontal axis represents the thickness measured from the inner surface of the drum 40 to the outer surface, and the vertical axis represents the temperature. As shown in FIG. 7, the temperature of the inner surface of the drum 40 is maintained at 18 ° C., the temperature of the outer surface is maintained at 30 ° C., and the temperature inside the thickness of the drum 40 is 18 ° C. in proportion to its depth. Have a temperature distribution that varies from to 30 ° C. That is, the temperature of the inner surface of the drum 40 is the same as the room temperature, and the temperature of the outer surface of the drum 40 is the same as the outdoor temperature.

Now, the principle of the heat exchange process, that is, the temperature of the indoor air and the outdoor air is changed.

Air moving from the third compartment 53 at 30 ° C. to the second compartment 52 at 18 ° C. is a portion of the wall of the drum 40 located between the third compartment 53 and the second compartment 52 ( In the following, the temperature is changed in the same manner as the temperature gradient of the wall of the drum 40 while passing through the " part ". That is, air entering at a temperature of 30 ° C. from the outer surface of the drum 40 is gradually cooled while passing through the drum 40, and exits with 18 ° C. air from the inner surface of the drum 40. At this time, the temperature of the intermediate layer 43 of the corresponding part of the drum 40 rises somewhat by absorbing the amount of heat of air.

The portion of the drum 40 whose temperature has risen is rotated to move between the first compartment 51 and the fourth compartment 54, from the first compartment 51 at 18 ° C. to the fourth compartment 54 at 30 ° C. The moving air passes through the corresponding part of the drum 40. At this time, the air also passes through the wall of the drum 40 and the temperature is changed in the same manner as the temperature gradient of the wall of the drum 40. That is, air entering the temperature of 18 ° C. from the inner surface of the drum 40 is gradually heated while passing through the drum 40, and exits the air at 30 ° C. from the outer surface of the drum 40.

At this time, the temperature of the intermediate layer 43 of the corresponding portion of the drum 40 is somewhat lowered by losing heat to the air.

The portion of the drum 40 whose temperature has been dropped is rotated to move between the second compartment 52 and the third compartment 53, through which the air in the third compartment 53 at 30 ° C is 18 ° C. By acting as a passageway to the second compartment 52 of the, the above-described process is repeated.

That is, as the drum 40 rotates, the wall of the corresponding portion is moved between the first compartment 51 and the fourth compartment 54 from the second compartment 52 and the third compartment 53 to the first compartment. For the heat exchange between the air flowing into the room and the air discharged to the outside while continuing the movement between the compartment 51 and the fourth compartment 54 between the second compartment 52 and the third compartment 53. It acts as a heat exchange medium.

Although the description above assumes that the indoor air is low temperature and the outdoor air is high temperature, even if the indoor air is high temperature and the outdoor air is low temperature, the same operation is performed without replacing the piping of air.

That is, in the state where the pipes 11, 12, 13, 14 are arranged as assumed in the above description, as long as the drum 40 is rotating, the temperature of the inner surface of the drum 40 becomes equal to the temperature of the room air. While the temperature of the outer surface of the drum 40 becomes the same as the outdoor air, the temperature of the middle layer 43 of the wall of the drum 40 varies linearly from its inner surface to the outer surface.

In the case of arranging the pipe as opposed to the above description, that is, indoor air flows into the fourth compartment 54 and is discharged from the first compartment 51 to the outside, and outdoor air is discharged to the second compartment 52. In the case of being introduced into the room from the third compartment 53, the temperature of the inner surface of the drum 40 has the same temperature as the outdoor air and the temperature of the outer surface has the same temperature as the indoor air.

It is apparent that the heat exchange principle in such a case is the same as described above.

In order to facilitate fluid exchange through the heat exchanger as described above, a blower fan or a suction fan 65 may be installed in at least one of the four pipes.

In addition, in the configuration of the heat exchanger according to the present invention described above, the portion that requires relative movement while preventing the flow of air, that is, between the outer separation plate 25 and the outer surface of the drum 40, the inner separation plate 21 ), A flow suppressing member is preferably provided between the inner surface of the drum 40 and between the end of the drum 40 and the top plate 31 of the housing 30.

The flow inhibiting member may be configured as a brush or a flexible lip member 90 or the like extending from one member facing each other toward the other member.

Although the drawings and the embodiments described above illustrate an upright heat exchanger in which the drum 40 is disposed vertically in the housing 30, the drum is placed horizontally as long as the drum can rotate while remaining stable in place. Horizontal heat exchangers are also possible.

In the above-described embodiment, the material of the intermediate layer 43 of the wall of the drum 40 is exemplified as polypropylene, but any material that can easily exchange heat with the fluid while allowing the fluid to pass therethrough can be used without limitation. . That is, these materials can be appropriately selected in consideration of heat exchangeability, fluid permeability, and heat resistance at operating temperature.

As described in detail above, the heat exchanger having the heat exchange drum of the present invention allows the heat exchange between the outdoor air and the indoor air to be performed in the process of introducing the outdoor air into the room, thereby changing the temperature of the indoor air by the air introduced from the outside. It can reduce the operating time of the indoor heating and cooling system has the advantage that can be reduced.

Although the technical idea of the heat exchanger with a heat exchanger drum of the present invention has been described above with the accompanying drawings, this is illustrative of the best embodiment of the present invention and is not intended to limit the present invention. In addition, it is obvious that any person skilled in the art can make various modifications and imitations without departing from the scope of the technical idea of the present invention.

Claims (10)

In the heat exchanger used for heat exchange between the fluid exchanged between the hot portion and the cold portion, A drum rotatable around a central axis, A housing surrounding the drum, A first partition wall dividing the inside of the drum into two compartments; A second partition wall dividing a space formed between an outer surface of the drum and an inner surface of the housing into two compartments, At least one pipe formed in each of the compartments, And an end portion of the first partition wall and an end portion of the second partition wall at a closest distance with the drum interposed therebetween. The method of claim 1, The drum is disposed in the vertical direction inside the housing, the rotating plate for supporting and rotating the drum is disposed inside the housing, Heat exchanger, characterized in that a motor for rotating the rotating plate is disposed outside the housing. The method according to claim 1 or 2, The pipes formed in the compartments include an indoor air inlet pipe for guiding the inflow of the indoor air, an indoor air discharge pipe for discharging the indoor air to the outside, an outdoor air inflow pipe for introducing the outdoor air, and the outdoor air Is an outdoor air exhaust pipe for discharging indoors, The indoor air introduced through the indoor air inlet pipe is introduced into one of two compartments divided by the first partition wall, and the air discharged through the outdoor air discharge pipe is divided by the first partition wall. The air discharged from the other compartment and discharged through the indoor air discharge pipe is discharged from any one of two compartments divided by the second partition wall, and the air introduced through the outdoor air inlet pipe is discharged from the compartment. 2. A heat exchanger having a heat exchange drum, characterized by flowing into another compartment divided by a partition. The method according to claim 1 or 2, The pipes formed in the compartments include an indoor air inlet pipe for guiding the inflow of the indoor air, an indoor air discharge pipe for discharging the indoor air to the outside, an outdoor air inflow pipe for introducing the outdoor air, and the outdoor air Is an outdoor air exhaust pipe for discharging indoors, The outdoor air introduced through the outdoor air inlet pipe is introduced into one of two compartments divided by the first partition wall, and the air discharged through the indoor air discharge pipe is divided by the first partition wall. The air discharged from the other compartment, the air discharged through the outdoor air discharge pipe is discharged from any one of the two compartments divided by the second partition wall, the air introduced through the indoor air inlet pipe is the first 2. A heat exchanger having a heat exchange drum, characterized by flowing into another compartment divided by a partition. The method according to claim 1 or 2, The drum is a heat exchanger having a heat exchange drum, characterized in that the threads formed of a synthetic resin entangled. The method of claim 5, Inside the drum is a first outer layer having the same mesh structure as the inner shape of the drum is located, and outside the drum is a second outer layer having the same mesh structure as the outer shape of the drum is located, the drum 1, A heat exchanger having a heat exchange drum, characterized by being supported by a second shell layer. The method of claim 1, The first and second partitions are provided with rollers in contact with the drums to freely rotate the drums, and to block air flow between the drums and the first and second partitions. Heat exchanger with a drum. The method of claim 1, The first and second partitions are provided with a lip member in contact with the drum to block air flow between the drum and the first and second partitions, the heat exchange drum having a heat transmitter. A heat exchange drum for use in a heat exchanger that enables heat exchange between fluids exchanged between a high temperature portion and a low temperature portion, A heat exchange drum, comprising: a porous material that absorbs heat from a fluid and emits heat into the fluid, and is formed of a porous body that smoothly passes the fluid inside and outside the drum in both directions. The method of claim 9, And an outer skin layer attached to both sides of the porous body to define an inner surface and an outer surface of the heat exchange drum, wherein the outer skin layer is formed of a porous body for smoothly passing a fluid.