JPH0631698B2 - Heat exchange device and manufacturing method thereof - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention exchanges heat of high-temperature air with high vapor density, for example, high-temperature vapor density, that is, high humidity air with a heat exchange unit to obtain low temperature absolute humidity. The present invention relates to a heat exchange device which obtains dry air by raising the temperature of the air.

[Conventional technology]

Conventionally, for example, there is a heat exchange device as shown in Japanese Examined Patent Publication No. 59-31671, and the one shown in FIG. 4 has been applied as an application thereof. In FIG. 4, (1) is a casing, (2) is a partition plate that divides the casing (1) into a first chamber (3) and a second chamber (4), and (5) is one side (5a ) Is arranged in the first chamber (3) and the other side
(5b) is a heat exchange unit arranged in the second chamber (4), and heat-exchanges the first chamber (3) and the second chamber (4) with one inner wall of the housing (1). A third chamber (6) communicating with the unit (5) is formed. (7) is a cooler unit, and a heat exchange unit (5)
The inlet and outlet on one side (5a) are connected by pipes (8), (9), and these (5), (7) to (9) constitute a refrigerant circulation circuit. Reference numeral (10) is a heating means such as a heater arranged in the second chamber (4). In the figure, Qw is high temperature, for example, high-humidity air introduced into the first chamber (3), and Qa is a low temperature due to heat exchange with the one side (5a) of the heat exchange unit (5). Therefore, the air and Qb flowing into the third chamber (6) are heat-exchanged with the other side (5b) of the heat exchange unit (5), so that the temperature becomes lower and the second chamber (4) is heated. Air with low absolute humidity flowing into the chamber, Qd represents high temperature dry air heated by the heating means (10).

Next, the operation will be described. A low-temperature refrigerant is supplied to the heat exchange unit (5) from the cooler unit (7) through the pipe (8), and the refrigerant after heat exchange is circulated into the cooler unit (7) through the pipe (9) and the inside thereof is recirculated. Then, the low-temperature refrigerant is supplied again to the heat exchange unit (5) through the pipe (8), and such refrigerant circulation operation is repeated. On the other hand, the high-temperature, high-humidity air Qw introduced into the first chamber (3)
When passing through one side (5a) of the heat exchange unit (5), heat is exchanged with the refrigerant flowing in the pipe on the one side (5a) to form air Qa of a low temperature in the third chamber ( It flows into the inside of 6) and flows into the other side (5b) of the heat exchange unit (5). And the third room (6)
When the air Qa inside passes through the other side (5b) of the heat exchange unit (5), heat is exchanged with the refrigerant flowing through the pipe on the other side (5b), and the temperature of the absolute humidity Low air Qb
Then, it flows into the second chamber (4). The air Qb flowing into the second chamber (4) is heated by the heating means (10) and is discharged as high-temperature dry air Qd. This hot dry air Qd is supplied to equipment (not shown) in which hot dry air is required.

By the way, the temperature distribution in the heat exchange process of air is as shown in FIG. That is, the temperature of the high-humidity air Qw in the A section is Tw, and the air Qa having a low temperature Ta in the B section is obtained by the heat exchange on the one side (5a) of the heat exchange unit (5). In addition, the other side of the heat exchange unit (5) (5
Due to the heat exchange in b), a lower temperature air Qb having a lower absolute humidity Tb is generated in the C portion, and is heated by the heating means (10) and becomes a high temperature dry air Qd in the D portion.

[Problems to be solved by the invention]

However, in the above-mentioned conventional device, the heat exchange unit
Because the heat exchange in (5) lowers the temperature from Tw to Tb, that is, to quench it, the cooler unit (7)
Since the load on the air conditioner increased rapidly, the cooler unit (7) had become larger. Further, in the second chamber (4), in order to raise the temperature from the temperature Tb to the temperature Td to obtain dry air, that is, to rapidly heat, the load of the heating means (10) rapidly increases. The means (10) had a large capacity.

The present invention has been made to solve the above problems, and an object thereof is to provide a heat exchange device and a manufacturing method that can reduce the load in heat exchange and that are economically excellent.

[Means for solving problems]

The heat exchange device according to the present invention is provided with a heat pipe in which the heat absorption portion is arranged upstream of one side of the heat exchange unit and the heat radiation portion is arranged downstream of the other side of the heat exchange unit. The replacement unit and a plurality of fin plates form an integral structure.

[Action]

In the heat exchange device according to the present invention, the heat pipe unit and the heat exchange unit are integrally formed by a plurality of fin plates, and the heat absorption side of the heat pipe unit absorbs the heat of the air having a high vapor density to obtain the air temperature. Lower temperature, the heat is absorbed by the heat absorbing unit of the heat pipe unit, and the heat absorbed by the heat absorbing unit of the heat pipe unit is transferred to the heat radiating side of the heat pipe unit and discharged from the other side of the heat exchanging unit. It is discharged into the air having a low temperature and the temperature of the air is raised.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 3, (1) to (4), (6) to
(10) is the same as the configuration of the conventional device described above. (11) is a heat exchange unit in which one side (11a) is arranged on the first chamber (3) side and the other side (11b) is arranged on the second chamber (4) side, and (12) is a heat absorption side.
(12a) is located inside the first chamber (3) on one side of the heat exchange unit (11) (11
a) The heat dissipating side (12b) is arranged upstream, and the heat radiating side (12b) is downstream of the other side (11b) of the heat exchange unit (11) in the second chamber (4), that is, the other side (11b) and the heating means (10). This is a heat pipe unit that is installed between and. Reference numeral (13) is a plurality of fin plates having a heat pipe unit (12) and a heat exchange unit (11) as an integral structure. An example of the method for manufacturing the integrated structure will be described with reference to FIG. Multiple fin plates (13) with multiple tubes
(14) is attached to form two tube groups, each tube body (14) of one group of tube groups is sealed at both ends, and CFCs, ammonia, water, etc. are placed inside each tube body (14). The working liquid of (1) is enclosed to form the heat pipe unit (12). On the other hand, a connecting pipe is provided so that the refrigerant flows from the refrigerant inlet (15) to the refrigerant outlet (16) while leaving the refrigerant inlet (15) and the refrigerant outlet (16) at both ends of each tube (14) of the other group of tubes. A heat exchange unit (11) is formed by communicating with (17). In this way, an integrated structure of the heat pipe unit (12), the heat exchange unit (11) and the fin plate (13) is formed. In the figure, Q1 is a heat pipe unit (12)
The heat absorption side one side of the heat content is absorbed by (12a) and is lowered to the air temperature T ₁ of flows in _part A heat exchanger Yunitsuto (11) (11a)
Q ₂ is the air that is heated to the heat radiating side (12b) of the heat pipe unit (12) and is heated to the air temperature T2, flows out to the C1 section, and flows into the heating means (10). .

Next, the operation will be described. The high temperature and high humidity air Qw introduced in the first chamber (3) is the heat pipe unit (12).
The heat component is absorbed by flowing through the heat absorption part (12a). That is, the heat absorbing unit (12a) of the heat pipe unit (12)
The heating liquid also heats the working liquid enclosed in the tube body (14), and the heat component of the air Qw is taken as vaporization latent heat to be vaporized, and is transferred to the heat radiation side (12b) of the heat pipe unit (12). It moves inside the tube (14). Heat pipe unit (1
The vapor of the working liquid that has moved to the heat radiation side (12b) of 2) is cooled by the circulation of the air Qb of low temperature and low absolute humidity flowing out from the other side (11b) of the heat exchange unit (11). At this time, the vapor of the working liquid is condensed and liquefied, but the latent heat of condensation is radiated into the air Qb and the temperature of the air Qb is raised. The working liquid condensed and liquefied is on the heat absorption side (12a) of the heat pipe unit (12).
It moves back inside the navel tube (14) and returns. In this way,
By repeating vaporization and liquefaction of the working liquid in the pipe body (14) of the heat pipe unit (12), the heat pipe unit (1
Heat transfer from the heat absorption side (12a) of the heat pipe unit (12) to the heat radiation side (12b) of the heat pipe unit (12). Then, heat is radiated into the air Qb of low temperature and low absolute humidity. Therefore, the hot and humid air Qw is on the heat absorbing side of the heat pipe unit (12).
By circulating (12a), the air temperature Tw changes to the air temperature T1.
The air is cooled down to Q1 and flows out to A1 section. The air Q1 flowing out to the A1 part flows into the third chamber (6) together with the air Qa whose temperature is lowered from the air temperature T1 to the air temperature Ta by flowing through the one side (11a) of the heat exchange unit (11). To do. Room 3
The air Qa flowing out into (6) is the other side of the heat exchange unit (11).
By circulating (11b), the air temperature Ta to the air temperature Tb
It is cooled down to the low temperature and low-humidity air Qb and flows out to the C part. The air Qb flowing out to the part C flows through the heat radiating side (12b) of the heat pipe unit (12), so that the air temperature T
The air Q2 heated up from b to the air temperature T2 flows out to the portion C1. The air Q2 flowing out to the C1 portion is heated from the air temperature T2 to the air temperature Td by the heating means (10) and becomes hot dry air Qd to flow out to the D portion.

As described above, since the heat absorption side (12a) of the heat pipe unit (12) is arranged on the upstream side of the one side (11a) of the heat exchange unit (11) to lower the temperature from the air temperature Tw to the air temperature T1, The heat exchange in the heat exchange unit (11) is performed from the air temperature T1 to the air temperature.
Up to Tb, cooler unit (7)
The load on the cooler unit can be significantly reduced.
It is possible to downsize (7). In addition, the heat radiating side (12b) of the heat pipe unit (12) is arranged downstream of the other side (11b) of the heat exchange unit (11) to raise the temperature from the air temperature Tb to the air temperature T2. The heating by the means (10) is from the air temperature T2 to the air temperature Tb.
The load on the heating means (10) can be significantly reduced, and the capacity of the heating means (10) can be reduced. If the air Q2 at the air temperature T2 due to the temperature raising effect on the heat radiation side (12b) of the heat pipe unit (12) is sufficient, the heating means (10) need not be provided. By the way, the heat pipe unit (12) performs heat exchange operation by repeating vaporization and liquefaction of the working liquid enclosed in the tubular body (14), and does not require any separate drive source. It is non-maintenance and very economical. Also, the heat pipe unit (12) and the heat exchange unit (1
By integrating 1) and 1 with the fin plate (13) as an integral structure, the structure can be simplified and downsized, and the heat pipe unit (12) and the heat exchange unit (11) can be installed in The manufacturing cost can be further reduced by using the same specifications for both.

In the above embodiment, the case where the heat exchange unit (11) is formed by connecting the refrigerant inlet (15) and the refrigerant outlet (16) at both ends of the pipe body (14) with the communication pipe (17) is described. , A plurality of U-shaped pipes are attached to the plurality of fin plates (13), and the open ends of these U-shaped pipes are connected by a connecting pipe so that the refrigerant flows from the refrigerant inlet to the refrigerant outlet leaving the refrigerant inlet and the refrigerant outlet. Heat exchange unit (11) to form the heat pipe unit (1
It may be integrated with 2).

Also, a plurality of U-shaped pipes are attached to the plurality of fin plates (13) as the pipe bodies (14) to form a plurality of pipe body groups, and the open ends of the U-shaped pipes of one group of the pipe body groups are sealed. Then, the working liquid is sealed inside the U-shaped tubes to form a heat pipe unit, and the refrigerant flows from the refrigerant inlet to the refrigerant outlet while leaving the refrigerant inlet and the refrigerant outlet at the open end of the U-shaped tube of the other group of the tube group. The heat exchange unit (11) may be formed by communicating with each other through a communication pipe so that the heat exchange unit (11) and the heat pipe unit (12) are integrated.

In addition, a plurality of pipes are attached to a plurality of fin plates (13) to form a plurality of pipes, and both ends of each pipe of one group of pipes are sealed so that the working liquid is contained inside each of the pipes. To form a heat pipe unit (12), and a heat exchanger unit (11) is formed by providing a refrigerant inflow header at one end of the other group of tubes and a refrigerant outflow header at the other side. (11) and the heat pipe unit (12) may be integrated.

In addition, a plurality of pipes are attached to a plurality of fin plates (13) to form a plurality of pipes, and both ends of each pipe of one group of pipes are sealed so that the working liquid is contained inside each of the pipes. To form a heat pipe unit (12), a refrigerant inflow header and a refrigerant outflow header are provided at one end of the other group of tubes, and an intermediate header is provided at the other side to form a heat exchange unit (11). The heat exchange unit (11) and the heat pipe unit (12) may be formed integrally with each other.

Further, in the above embodiment, the case of performing heat exchange of high temperature and high humidity air was described, but in the case of performing heat exchange of high temperature air having a high vapor density corresponding to the vapor density of a condensing / evaporating chemical or the like. The present invention can also be applied to the above, and the same effects as those of the above-described embodiment can be obtained.

〔The invention's effect〕

As described above, the present invention absorbs the heat content of high-temperature, high-vapor-density air on the heat-absorbing side of the heat pipe unit, lowers the air temperature, and guides it to one side of the heat exchange unit, and at the same time, the heat-absorbing side of the heat pipe unit. The heat absorbed by the heat transfer unit is transferred to the heat radiating side of the heat pipe unit and released from the other side of the heat exchange unit into the low temperature air with low vapor density to raise the temperature of the heat exchange unit. It is possible to obtain a heat exchange device that can improve the heat exchange characteristics in the unit. Further, since the heat pipe unit and the heat exchange unit are integrated into one by interposing a plurality of fin plates, the structure is simplified and an economical heat exchange device can be obtained.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a heat exchange device according to an embodiment of the present invention, FIG. 2 is a perspective view showing an essential part of a heat exchange device according to an embodiment of the manufacturing method of the present invention, and FIG. FIG. 4 is a characteristic diagram showing such heat exchange characteristics, FIG. 4 is a sectional view showing a conventional heat exchange device, and FIG. 5 is a characteristic diagram showing conventional heat exchange characteristics. In the figure, (11) is the heat exchange unit, (11a) is one side,
(11b) is the other side, (12) is the heat pipe unit, (12a) is the heat absorbing side, (12b) is the heat radiating side, (13) is the fin plate, (14)
Is a tube. The same reference numerals in the drawings indicate the same or corresponding parts.

Claims (6)

[Claims] Claim: What is claimed is: 1. A high-temperature air having a high vapor density is introduced into one side of the heat-exchange unit to exchange heat to obtain a low-temperature air, and the low-temperature air is introduced into the other side of the heat-exchange unit. In a heat exchange device that heat-exchanges and outputs as low-temperature air with a low vapor density and raises the air with a low vapor density to obtain dry air, the heat absorption side is located upstream of one side of the heat exchange unit. A heat pipe unit having a heat radiation side disposed on the downstream side of the other side of the heat exchange unit; and a plurality of fin plates having the heat exchange unit and the heat pipe unit as an integral structure. The heat absorption side of the heat pipe unit absorbs the heat content of the high-temperature air with high vapor density, lowers the temperature of the air, and guides it to one side of the heat exchange unit.
The heat absorbed by the heat absorbing side of the heat pipe unit is transferred to the heat radiating side of the heat pipe unit and discharged from the other side of the heat exchanging unit into the low-temperature air having a low vapor density to release the air. A heat exchange device characterized in that it is heated to obtain dry air. 2. A step of mounting a plurality of pipe bodies on a plurality of fin plates to form a plurality of pipe body groups, and sealing both ends of each pipe body of one group of the pipe body groups, and the inside of each pipe body. To form a heat pipe unit by enclosing the working liquid in the above, and to connect the two ends of each tube of the other tube group so that the refrigerant flows from the refrigerant inlet to the refrigerant outlet leaving the refrigerant inlet and the refrigerant outlet. And a step of forming a heat exchange unit by connecting them by a pipe. 3. A step of mounting a plurality of pipes on a plurality of fin plates, a step of mounting a plurality of U-shaped pipes on the plurality of fin plates, and a step of sealing both ends of the pipes inside the pipes. And a step of forming a heat pipe unit by sealing the working liquid with the opening of the U-shaped tube and leaving a refrigerant inlet and a refrigerant outlet to communicate the refrigerant from the refrigerant inlet to the refrigerant outlet. And a step of forming a heat exchange unit. 4. A step of mounting a plurality of U-shaped tubes on a plurality of fin plates to form a plurality of tube bodies, and sealing the open ends of the U-shaped tubes of one group of said tube bodies by U The step of forming a heat pipe unit by enclosing the working liquid inside the character tube, and the refrigerant is the refrigerant inlet while leaving the refrigerant inlet and the refrigerant outlet at the open end of the L-shaped tube of the U-shaped tube of the other group of the tube group. And a step of forming a heat exchange unit by communicating with each other through a connecting pipe so as to flow from the refrigerant to the refrigerant outlet. 5. A step of mounting a plurality of pipe bodies on a plurality of fin plates to form a plurality of pipe body groups, and sealing both ends of each pipe body of one group of the pipe body groups, and the inside of each pipe body. And a step of forming a heat pipe unit by enclosing a working liquid therein, and a step of forming a heat exchange unit by providing a refrigerant inflow header on one end side of the other group of the above tube groups and a refrigerant outflow header on the other side. A method for manufacturing a heat exchange device, comprising: 6. A step of mounting a plurality of pipe bodies on a plurality of fin plates to form a plurality of pipe body groups, and sealing both ends of each pipe body of one group of the pipe body groups, and the inside of each pipe body. A step of forming a heat pipe unit by enclosing the working liquid in the above, and a refrigerant inflow header and a refrigerant outflow header are provided at one end side of the other group of the above tube groups, and an intermediate header is provided at the other side to form a heat exchange unit. And a step of forming the heat exchange apparatus.