JPS58160799A - Heat exchanger - Google Patents

Abstract

PURPOSE:To recover highly efficiently hot air or cool air that will escape when necessary ventilation in cooling or heating is carried out, by making the wall surface of each of fluid passages of a heat exchanger undulated to form a plurality of projections thereby increasing the area for the heat exchange. CONSTITUTION:In case of cooling, the cool air having low temperatures in a room is flowed from an inlet 9 into a heat exchange chamber 7, and is passed around the plurality of cylindrical fluid passages 20 having the plurality of projections 19 to flow outside through an outlet 10. On the other hand, the outside atmosphere is flowed from an inlet 2 into a inflow chamber 5, passes through the plurality of fluid passages 20 having the plurality of projections 19 to flow into an outflow chamber 6, and is flowed out into the room through an outlet 3. In this case, the outside atmosphere having high temperatures flowing into the room undergoes heat exchange through the wall surfaces of the fluid passages 20 with the cool air flowing outside the room, so that the temperature in the room can be prevented from rising.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a heat exchanger, and particularly to a heat exchanger that collects and reuses the hot air or cold air that escapes through the ventilation necessary for heating and cooling. @ the heat exchanger.

[Technical background of the invention and its problems]

In the case of heating and cooling, ventilation is carried out in the summer by exhausting the cold air from the air conditioned room to the outside. IIf outside air is taken into the room. In winter, the heated indoor air is exhausted to the outside, and low
This is done by sucking 1ilF of outside air into the room. Therefore, is there a conventional heat exchanger in the ventilation hole? ! +! In the summer, the temperature in the air-conditioned room is suppressed from rising due to the high temperature outside air, and in the winter, the Iff in the heated room is suppressed so that it does not fall due to the low temperature outside air. There is. Conventional heat exchangers of this type have been provided with a large number of fluid passages for heat exchange to perform heat exchange.

First, such a conventional heat exchanger will be explained with reference to the fa1 diagram.

FIG. 1 is an inverted vertical cross-sectional view of a conventional heat exchanger, in which distances of 4 m and 4 b are provided near the fluid inlet 2 and outlet 3 of the heat exchanger main body l formed as a box. , I51 on both shoulders of this box body 1! In the inflow chamber 5 and outflow chamber 6 of the body, a heat exchanger 1!7 is formed between the partition walls 4 and 4b. And bulkheads 41 and 4
Ill, which has good heat transfer properties between b and b.

As shown in Fig. 2 (- and (b) K'', a large number of cylindrical fluid passages 8. 5 and the outflow chamber 6 are communicated with each other.

When performing heat exchange with such a heat exchanger, for example in the case of air conditioning, low I! The cold air in the room flows into the heat exchange chamber 7 from the RIR inlet 9, and the numerous cylindrical fluid passages 8,8...
... passes through the aS and flows out unexpectedly from the outlet IO. On the other hand, high-temperature outside air flows into the inflow chamber 5 from the inlet 2, passes through a large number of cylindrical fluid passages 8, 8, and flows into the outflow chamber 6. leaks into the room. At this time, the high-temperature outside air flowing into the room is combined with the low-quality cold air unexpectedly flowing out into the numerous cylindrical fluid passages 8.8.
・・・・・・I! Heat is exchanged through the surface, and the moisture quality decreases before it flows into the room, which prevents the rise in indoor quality.

However, since the conveying surface of each cylindrical fluid passage 8.8... is smooth, the surface area for heat exchange is small and the heat exchange efficiency is low. Heat exchange efficiency is low because it is close to laminar flow, #! In order to increase the area for heat exchange, the number of cylindrical fluid passages 8.8... in the heat exchange chamber 7 is increased.
There were drawbacks such as narrower intervals between the gates and higher pressure loss.

Figure 143 is a perspective view of another example of a conventional heat exchanger.
, 1lbO wave cedars are alternately orthogonal to each other and stacked with flat plates 12 having good heat conductivity and smooth surfaces interposed therebetween to form fluid passages 13m and 13b having triangular cross sections.

When heat exchange is performed with such a heat exchange port, 1! ! If you knock it down, it will be an air conditioner and the cold air in the room with low a sound will be arrow A.

From the direction of 7-shaped II-shaped root plate 11al1m...
The fluid flows in the direction of arrow A through fluid passages 13m, 13m, etc., each having a triangular cross section between 2°12... and a flat plate. On the other hand, the figure 7 shape [1 plate 11 b, 11 b...
The arrow B passes through the WIrIr surface-shaped rectangular body passages 13b, 13b... between the flat plates 12, 12...
It flows in the direction of . At this time, heat is exchanged with the outside air frame of high a (high a) flowing into the room, and the cold air of low IIIf flowing out outdoors through a number of flat plates 12, 12, etc., and after the a (a) is lowered, it flows into the room. Therefore, indoor a [
The rise can be suppressed.

However, the 7-shaped corrugated plates 11a, l1m...
and 11b, llb... and flat plates 12, 12
. . . has a smooth surface 111, so the fluid passages 13m, 13m .
Since the wall surfaces of 3b, 13b, . . . are smooth, the area for heat exchange is small, and the heat exchange efficiency is low.

Additionally, the water flowing into the wall is close to IIIK, so the heat exchange efficiency is low.If you increase the volume to increase the area for WK heat exchange, or add a heat transfer plate etc. in the fluid passage, However, there were disadvantages such as an increase in the size of the heat exchanger or pressure loss.

Next, FIG. 4 and 115(2) are perspective views of a modification of the conventional heat exchanger shown in FIG. The flat plate 15 has a good heat conductivity and a smooth surface.
Element board 17 formed by attaching letter-shaped ffL cedar board 16
Fluid passages 18m and 18b each having a rectangular cross section are formed by stacking the waveforms a and 17b such that their corrugated directions are alternately intersecting with each other. When performing heat exchange with such a heat exchanger, there were the same effects and drawbacks as in the case of the conventional heat exchanger example described in @.

Furthermore, #IJ6 diagram is shown in Figure 3 y: Conventional heat exchange lII
! 7(2) is a perspective view of another q-root side of the vessel, and a perspective view of a modification of the conventional heat exchanger shown in FIG. 5. FIG.

In both of the examples shown in FIG. 6 and FIG. 7, the fluid 4 is bent in the middle, and has the same functions and drawbacks as the conventional heat exchanger.

[Purpose of the invention]

The present invention eliminates the drawbacks of the conventional ones mentioned above,
The purpose of this design is to provide a heat exchanger that can efficiently recover and reuse the hot air or cold air that escapes through the ventilation necessary for heating and cooling.

[Summary of the invention]

According to the present invention, in a heat exchanger in which a large number of fluid passages for heat exchange are formed, the wall surface of the fluid passage is formed in a wave shape, or the wall surface of the fluid passage is formed in a +IJ shape. By transplanting cilia, the previous l! 5. When a large number of protrusions are provided on the wall surface of the fluid passage to increase the area for heat exchange, the flow of the R body collides with the IIT protrusion to create a turbulent flow and heat exchange is performed with high efficiency. This is achieved by

[Embodiments of the invention]

Hereinafter, the present invention will be explained based on an embodiment KX shown in the drawings.

The eighth (b) is l'j! of the heat exchanger of the present invention. This is a vertical cross section of the example, and KY4 * 4 m and 4b are provided near the fluid inlet 2 and outlet 03 of the heat exchanger main body formed in the box l, and the 11 holes of this ring l are used as the fluid inflow chamber. 5 and an outflow chamber 6, and a heat exchange group 7 is formed between the partitions 41 and 4b. And the space between @4* and 4b has good heat conductivity, w49 figure-)
And a large number of cylindrical fluid passages with one surface formed in a wave shape and having a large number of protrusions 19, 19, . . . as shown in (b)! The ribs 20 are installed to communicate the inflow chamber 5 and the outflow chamber 6.

When performing heat exchange with such a heat exchanger, for example, in the case of air conditioning, low-temperature (indoor cold air) is transferred from the inlet 9 to the heat exchange base 7.
A large number of cylindrical fluids 1 with many protrusions 19.19...... flowing into the ! It passes around 4)... and flows out from the outflow 0111 to the outside. On the other hand, the outside air at a high temperature of 11 degrees flows into the inflow chamber 5 from the inlet 2, and the fluid passage side, which is provided with a large number of FII protrusions 19. ..., sweat enters the outflow chamber 6, and flows out into the room from the outflow port 3.At this time, the highly wet outdoor air flowing into the room is mixed with the low-water level cold air flowing out into the room. Protrusions 19, 144...
A large number of cylindrical fluid passages provided with..., 2o...
The heat is exchanged through the l# surface of .

The cylindrical fluid passages of each of the above 151C1...
The wall surface of... is formed in a wavy manner and has many protrusions 19, I'
1 is provided, the area for heat exchange is large and the heat exchange efficiency is high. In addition, the flow that hits the wall surface becomes turbulent, which further increases the heat efficiency. Therefore, the cylindrical fluid passage is applied,
・It is necessary to increase the number of g to increase the heat exchange area! Since there is no heat exchanger, the heat exchanger becomes compact.

Next, FIG. 10 is a perspective view of another embodiment of the heat exchanger of the present invention.
V-shaped waveform with protrusions by flocking 1 & 11a, ll
Fluid passages 13 with a triangular cross section are stacked with flat plates 12 having protrusions formed by planting cilia 21 with good heat conductivity and hygroscopicity on the surface between which the directions of the waveforms of b are alternately perpendicular to each other.
m, 13k are formed.

When performing heat exchange with such a heat exchanger, for example, in the case of air conditioning, the cold air in the room at a low temperature is indicated by arrow A.

V-shaped corrugated plates 11m, 111... and flat plates 12, 12 in which hygroscopic cilia 21 are flocked from the direction of
Fluid II with a triangular cross section between... ! Approximately 13m,
It flows in the direction of arrow A through 13m...

On the other hand, V-shaped corrugated plates 11b, llb, which are flocked with hygroscopic cilia from the direction of the high sy outside air Bu arrow B1.
The fluid flows in the direction of arrow B2 through fluid passages 13b, 13b, . At this time, the high t flowing into the room
The outside air of Af is the low-temperature cold air that flows out to the outside and a large number of flat plates 12, 12, which are flocked with hygroscopic cilia.
Heat is exchanged through ..., the temperature decreases, and then it flows into the room, so the rise in indoor temperature can be suppressed.

Each IRT face triangular fluid passage 13a as described above.

13m...and 1. , ib , 13 b・
... When the cilia 21 having hygroscopic properties are implanted on the wall [1i], the protrusions are provided, so the surface area for heat exchange is large, and the exchange speed between heat and moisture is high. Furthermore, the flow rL colliding with the wall surface becomes turbulent due to the cilia 4, so that the efficiency of heat exchange 5e is further increased. Therefore, the fluid passage 13a.

There is no need to increase the number of 13b... to increase the size of the heat exchanger, so the heat exchanger can be made more compact.

Next, T shown in Figure 11 and @12-po, No. 1 O box:
Other heat exchangers of the present invention! ! ! It is a perspective view of a modified example of the example, and each cross-sectional fluid passage 1) ta, 18 m...
...and 18b, 18b... I! The above-mentioned 'j! It has the same effect as #it@J.

j! [, 11113 Figure is a diagonal fJ of another modification of the heat exchanger of the present invention with @10 factors! Figure #414 is the first
FIG. 2 is a perspective view of a modification of the heat exchanger of the present invention shown in FIG. 2; In both the examples shown in FIGS. 13 and 14, the fluid passage is bent in the middle, and as described above! ! It has the same effect as the woven example.

〔Effect of the invention〕

As explained above, the present invention uses a stone heat exchanger.

In a heat exchanger in which a large number of fluid passages for heat exchange are formed, fimbriae are implanted on the wall of the fluid passage by forming a 1#, 1 ilr wave shape in the fluid passage or at the end of the passage. By providing a large number of protrusions on the wall surface of the fluid passage, the area for heat exchange becomes large and the flow of fluid is
It has the effect of highly effective exchange of heat and moisture by colliding with the 1m period protrusion and creating a turbulent flow.

[Brief explanation of the drawing]

Figure 111 is a conventional heat exchanger! II! Figure 2 (a) is a cross-sectional view of the fluid passage of the 1N heat exchanger, 1
lI2 a! g(b) Longitudinal cross-sectional view of rf No. 21W, No. 31
1 [IE Australia's perspective view of another example of heat exchanger, Figure 4 is
A perspective view of the element plate of a modified example of the heat exchanger shown in the figure, Figure 5 is w4
Figure 4 is a perspective view of the stacked element plates, Figure 6 is a perspective view of a modified example of the heat exchanger pond in Figure 3, and Figure #47 is a perspective view of a modified example of the heat exchanger shown in Figure 5. , @8 Figure is i of the heat exchanger of the present invention.
*Example longitudinal cross-sectional view, Figure 9-) is a cross-sectional view of the fluid) Ill passage of the heat exchanger in Figure 8, Figure 9 (b) is a cross-sectional view of Figure 9 (a)
FIG. 10 is a perspective view of another embodiment of the heat exchanger of the present invention, FIG. 11 is a perspective view of an element plate of a modification of the heat exchanger of the present invention shown in FIG. Figure 12 is a perspective view of stacking the element plates shown in Figure 1, and Figure 13 is a street view of another modification of the heat exchanger of the present invention in Figure 1, 14th, JH, 12th.
FIG. 3 is a perspective view of a modification of the heat exchanger of the present invention shown in FIG. DESCRIPTION OF SYMBOLS 1... Box body, 2... Fluid inlet, 3... L projectile outlet, 4m, 4b... Bulkhead, 5... Inflow chamber, 6...
・Outflow chamber, 7... Heat exchanger, 8... Fluid passage, 9.
...Inlet, 1()...Outlet, lla, llb...
・V-shaped corrugated plate, 12...Smooth flat plate, I3...
W'rEfr triangular fluid passage, 14.../-ru part,
15... Flat plate with smooth surface, I6... U-shaped corrugated plate, 17m, 17b... Element plate, 18 Tortoise, 18b.
・Cross-sectional flow c4. ^Road, 19...many protrusions,
)...Cylindrical fluid passage, 2]...Fleet implantation. Representative Kiyoshi Inomata Figure 9 Figure 6 Figure 4 Figure 5 Closed Jθ Question 11 Question 17. audience

Claims (1)

[Scope of Claims] 1. A heat exchanger in which a large number of fluid passages for heat exchange are formed, in which a number of protrusions are provided in the 41 direction of the fluid passages as W ruts. 2. The heat exchanger according to claim 1, wherein the cage surface of the protrusion and the fluid passage is formed in a wavy shape. 3. The heat exchanger according to claim 1, wherein the projections are formed by planting cilia on the wax surface of the fluid passage.