JPH0631699B2 - Heat exchanger - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a high temperature vapor density air, for example, a high temperature vapor density air, that is, a high humidity air, by heat exchange with a heat exchange unit to obtain a 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 an application of this is shown in FIG. In FIG. 3, (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 disposed 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, a heat exchange unit (5)
The inlet and outlet of one side (5a) are connected by pipes (8) and (9), and these (5), (7) to (9) form 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 the first room
In the third chamber (6), the high temperature, for example, high-humidity air, Qa, which is introduced into (3), is heat-exchanged with the one side (5a) of the heat exchange unit (5) and becomes a low temperature. The air, Qb, flowing into the second chamber (4) is heat-exchanged with the other side (5b) of the heat exchange unit (5) to a lower temperature, and the air with a low absolute humidity, Qd, flows into the second chamber (4). Indicates hot and 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 low temperature, and 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 in the 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 absolute humidity of a lower temperature 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 low absolute humidity Tb is generated in the C portion, and is heated by the heating means (10) to become a high temperature dry air Qd in the D portion.

[Problems to be solved by the invention]

However, in the conventional device described above, the heat exchange unit
Since the heat exchange in (5) lowers the temperature from Tw to Tb, that is, quenches it, the cooler unit (7)
As 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) increases rapidly. The means (10) had a large capacity.

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

[Means for solving problems]

In the heat exchange device according to the present invention, the heat absorption side of the first heat pipe unit is arranged upstream of one side of the heat exchange unit,
The heat radiating side of the first heat pipe unit is disposed downstream of the other side of the heat exchange unit, the heat exchange unit and the first heat pipe unit are integrated, and the heat absorption side of the second heat pipe unit is made the first side. It is arranged upstream of the heat absorption side of the heat pipe unit, and the heat radiation side of the second heat pipe unit is arranged downstream of the heat radiation side of the first heat pipe unit.

[Action]

In the heat exchange device according to the present invention, the heat absorption side of the first and second heat pipe units absorbs the heat component of the high-temperature air having high vapor density, lowers the air temperature, and guides it to one side of the heat exchange unit. , Low-temperature vapor density derived from the other side of the heat exchange unit by transporting the heat absorbed by the heat absorbing side of the first and second heat pipe units to the heat radiating side of the first and second heat pipe units, respectively It is discharged into the air of low air temperature to raise the temperature of the air.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. 1 and 2, (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 side of the first chamber (3) and the other side (11b) is arranged on the side of the second chamber (4), and (12) is a heat absorbing 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 the other side (11b) downstream of the heat exchange unit (11) in the second chamber (4), that is, the other side (11b) and the heating means (10). And a heat exchange unit (1
The first heat pipe unit integrated with 1),
Plural tubes forming the first heat pipe unit (12)
Working fluids such as CFCs, ammonia, and water are enclosed in (12c). The heat absorbing side (13a) of the (13) is arranged upstream of the heat absorbing side (12a) of the first heat pipe unit (12), and the heat radiating side (13b) of the heat radiating side (13b) of the first heat pipe unit (12) ( 12b) A second heat pipe unit disposed downstream, and a plurality of pipe bodies (13c) forming the second heat pipe unit (13) contain working liquids such as CFCs, ammonia and water. It is enclosed. The refrigerant inlet and the refrigerant outlet of the heat exchange unit (11) are connected by (8) and (9) to form a refrigerant circulation circuit together with the cooler unit (7). Also, in the figure, the second heat pipe unit of Q ₁
Heat is absorbed on the heat absorption side (13a) of (13), the temperature is lowered to the air temperature T _1, and it flows out to the A ₁ section where the first heat pipe unit (1
The air flowing into the heat absorbing side (12a) of 2), Q ₂ is further absorbed by the heat absorbing side (12a) of the first heat pipe unit (12) and is cooled to the air temperature T _{2 and} then the A ₂ part Air flowing out to the one side (11a) of the heat exchange unit (11), Q ₃ is heat-exchanged with the one side (11a) of the heat exchange unit (11) and becomes a low temperature T _3. The air, Qb, flowing into the third chamber (6) is heat-exchanged with the other side (11b) of the heat exchange unit (11) to reach a lower temperature Tb, and then flows out to the C portion to be the first heat. Air flowing into the heat dissipation side (12b) of the pipe unit (12), Q ₄ is the first
Is heated on the heat radiating side (12b) of the heat pipe unit (12), heated to the air temperature T ₄ , flows out to the C ₁ part, and flows into the heat radiating side (13b) of the second heat pipe unit (13). Air, Q ₅
Is heated by the heat radiation side (13b) of the second heat pipe unit (13) and heated to the air temperature T ₅ , flows out to the C ₂ section and flows into the heating means (10), and Qd is heated. The dry air is heated by the heating means (10) and has a temperature of Td.

Next, the operation will be described. The high-temperature, high-humidity air Qw having the temperature Tw introduced into the first chamber (3) is absorbed in the heat absorption section (13a) of the second heat pipe unit (13) by flowing therethrough. That is, the second heat pipe unit
The endothermic part (13a) of (13) is heated, and by this heating, the tube
(13c) The working liquid enclosed in the inside is also heated, and the heat component of the air Qw is taken as vaporization latent heat to be vaporized, and the heat dissipation side (13b) of the second heat pipe unit (13) inside the tube (13c) To move. The heat radiating side of the second heat pipe unit (13) (13
The vapor of the working liquid that has moved to b) flows out from the heat radiating side (12b) of the first heat pipe unit (12) and the air Q at the low temperature T ₄
Cooled by circulating ₄ . In this case the vapor of the working fluid liquefied by condensation, but raised the air Q ₄ radiates latent heat of condensation in the air Q _4. The condensed and liquefied working liquid moves to the heat absorbing side (13a) of the second heat pipe unit (13) inside the pipe body (13c) and returns. In this way, by repeating vaporization and liquefaction of the working liquid in the tube body (13c) of the second heat pipe unit (13), the heat absorbing side (13a) of the second heat pipe unit (13) is circulated. The heat of the high-temperature and high-humidity air Qw is transferred from the heat absorption side (13a) of the second heat pipe unit (13) to the heat radiation side (13b) of the second heat pipe unit (13) to lower the temperature. Heat is dissipated in the air Q _{4 of} T ₄ . Therefore, the high-temperature and high-humidity air Qw flows through the heat absorption side (13a) of the second heat pipe (13), so that the air temperature T
The air Q ₁ cooled from w to the air temperature T ₁ flows out to the A ₁ section. The air Q ₁ flowing out to the A ₁ portion is absorbed in the heat component by flowing through the heat absorbing portion (12a) of the first heat pipe unit (12). That is, the first heat pipe unit
The endothermic part (12a) of (12) is heated, and this heating causes the tubular body (12c).
The working liquid enclosed inside is also heated, and the heat content of the air Q ₁ is taken as evaporation latent heat to be vaporized and moved to the heat radiating side (12b) of the first heat pipe unit (12) inside the tube body (12c). To do. The vapor of the working liquid that has moved to the heat radiation side (12b) of the first heat pipe unit (12) is the other side of the heat exchange unit (11).
The air Qb flowing out from (11b) and having a low temperature and a low absolute humidity is circulated to be cooled. 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 to raise the temperature of the air Qb. The working liquid condensed and liquefied is transferred to the heat-absorbing side (12a) of the first heat pipe unit (12) through the tube body (12).
c) Move inside and back. In this way, by repeating vaporization and liquefaction of the working liquid in the pipe body (12c) of the first heat pipe unit (12), the heat absorbing side (12a) of the first heat pipe unit (12) is circulated. The heat of the air Q ₁ is transferred from the heat absorbing side (12a) of the first heat pipe unit (12) to the heat radiating side (12b) of the first heat pipe unit (12), and the low temperature and absolute humidity are low. Dissipates heat into the air Qb. Therefore, the air
Q ₁ flows into the heat absorbing side (12a) of the first heat pipe unit (12) and flows out to the A ₂ section together with the air Q ₂ whose temperature is lowered from the air temperature T ₁ to the air temperature T ₂ . The air Q ₂ flowing out to the A ₂ section is heat-exchanged by flowing through one side (11a) of the heat exchange unit (11), and becomes the air Q ₃ whose temperature is lowered from the air temperature T ₂ to the air temperature T _3. It flows into the third chamber (6). The air Q ₃ flowing out into the third chamber (6) is heat-exchanged by flowing through the other side (11b) of the heat exchange unit (11) and the air temperature T
_The temperature is lowered from ₃ to the air temperature Tb, and it becomes low temperature air Qb having a low absolute humidity and flows out to the portion C. The air Qb flowing out to the portion C is heated by flowing through the heat radiating side (12b) of the first heat pipe unit (12) and is heated to the air temperature T ₄ to the air temperature T ₄ and becomes the air Q ₄ . Spills into C ₁ . The air Q ₄ flowing out to the C ₁ portion is heated by flowing through the heat radiating side (13b) of the second heat pipe unit (13) and is heated from the air temperature T ₄ to the air temperature T ₅ Q It flows out to C ₂ part with ₅ . The air Q ₅ flowing out to the C ₂ part is heated from the air temperature T ₅ to the air temperature Td by the heating means (10), and the high-temperature dry air Qd
Then, it flows out to the D section.

As described above, the heat absorption sides (12a) and (13a) of the first and second heat pipe units (12) and (13) are arranged on the upstream side of the one side (11a) of the heat exchange unit (11). Then the air temperature Tw to the air temperature
Since the temperature is lowered to T ₂ , the heat exchange in the heat exchange unit (11) is from the air temperature T ₂ to the air temperature Tb, and the load on the cooler unit (7) can be significantly reduced compared to the conventional one. The cooler unit (7) can be miniaturized.
Further, on the downstream side of the other side (11b) of the heat exchange unit (11), the heat radiation side (1) of the first and second heat pipe units (12), (13) is provided.
2b) and (13b) are arranged and the temperature is raised from the air temperature Tb to the air temperature T ₅ , the heating by the heating means (10) is from the air temperature T ₅ to the air temperature Td. In comparison with heating means (10)
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 Q ₅ of the air temperature T ₅ due to the temperature raising effect of the heat radiation sides (12b), (13b) of the first and second heat pipe units (12), (13) is sufficient, the heating means ( It is not necessary to provide 10). By the way, the first and second heat pipe units (12) and (13) perform heat exchange operation by repeating the natural operation of vaporization and liquefaction of the working liquid enclosed in the tubular bodies (12c) and (13c). Since it does not require any separate drive source, it has no maintenance and is very economically superior.

Further, in the above embodiment, the case of performing heat exchange of high temperature and high humidity air has been described, but in the case of performing heat exchange of high temperature air having a high vapor density corresponding to the water vapor density of a condensing / evaporating chemical or the like. The present invention can also be applied to this, 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 component of the air having high temperature and high vapor density on the heat absorption side of the first and second heat pipe units, lowers the air temperature, and discharges it to one side of the heat exchange unit. The low-temperature vapor density is low, in which the heat absorbed by the heat absorbing side of the first and second heat pipe units is transferred to the heat radiating side of the first and second heat pipe units and derived from the other side of the heat exchange unit. Since the heat is discharged into the air and the temperature of the air is raised, it is possible to obtain the heat exchange device capable of improving the heat exchange characteristics in the heat exchange unit.

[Brief description of drawings]

FIG. 1 is a sectional view showing a heat exchange device according to an embodiment of the present invention, FIG. 2 is a characteristic diagram showing heat exchange characteristics according to the present invention, and FIG. 3 is a sectional view showing a conventional heat exchange device. FIG. 4 is a characteristic diagram showing a conventional heat exchange characteristic. In the figure, (11) is a heat exchange unit, (11a) is one side,
(11b) is the other side, (12) is the first heat pipe unit,
(12a) is a heat absorbing side, (12b) is a heat radiating side, (13) is a second heat pipe unit, (13a) is a heat absorbing side, and (13b) is a heat radiating side.

Claims (1)

[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 draws out as low-temperature air with low vapor density and raises the air with low vapor density to obtain dry air, the heat absorption side is located upstream of one side of the heat exchange unit. A first heat pipe unit having a heat radiating side disposed downstream of the other side of the heat exchange unit and integrated with the heat exchange unit; and a heat absorbing side upstream of the heat absorbing unit of the first heat pipe unit. And a second heat pipe unit having a heat radiation side disposed downstream of the first heat pipe unit on the heat radiation side.