JPS63318492A - Heat exchanger - Google Patents

Abstract

PURPOSE:To obtain an economical heat exchanger by decreasing load at the time of exchanging of heat, by locating the heat absorbing side of a heat pipe unit on the upstream side, on one side of a heat exchanger unit, and the radiating side of a heat pipe unit on the downstream side, on the other side of a heat exchanger unit, as well as to provide a secondary heat exchanger unit on the upstream side. CONSTITUTION:The heat absorbing side 12a of a heat pipe unit 12 is located on the upstream side, on one side 11a of a heat exchanger unit 11, and the temperature in air is lowered down to the air temperature T1 from Tw, so that it is enough for heat exchangers 11 and 13 to cool the air down to the air temperature Tb from T1, and loading in exchanging of heat is divided between both heat exchangers. While the radiating side 12b of a heat pipe unit 12 is located on the downstream side, on the other side 11b of a heat exchanger unit 11, and the air is heated from the air temp. Tb up to T5, so that it is enough for a heater 10 to heat the air from the air temperature T5 up to Td. Accordingly loading by the heater 10 can remarkably be decreased; as a result, reduction of the capacity of a heater 10 can be realized.

Description

Detailed Description of the Invention [Industrial Application Field] This invention converts high-temperature high-temperature vapor density air, for example, high-temperature water vapor density, that is, high-humidity air, into low-temperature absolute humidity by U-exchanging it with a heat exchange unit. This relates to a heat exchange device that obtains dry air by raising the temperature of the air.

[Conventional technology]

Conventionally, there has been a heat exchange device as shown in, for example, Japanese Patent Publication No. 5G-81671, and an application of this is shown in FIG. 8. In Fig. 8, (1) is a housing, (2) is a partition plate that partitions the inside of this housing (1) into a first chamber (3) and a second chamber (4), and (5) is one side (5a ) is the first
The other II (5b) is located in the second chamber (4).
), which is a nine-layer exchange unit, and communicates the first chamber (3) and the second chamber (4) between the inner wall of the housing (1) via the heat exchange unit (5). Forming the eighth chamber (6). (7) is a heat exchange unit (which is a cooler unit)
5) One side (5a) inlet, outlet and piping (8)
, (9) and these (5) e (7)
~(9) A refrigerant circulation circuit is constructed. (1
0 is a heating means, such as a heater, disposed in the second chamber (4). In the figure, QW represents high temperature, for example, high humidity air introduced into the first chamber (3), and Qa represents low temperature air that is heat exchanged with one side (5a) of the heat exchange unit (5). The air Qb that flows into the eighth chamber (6) is heat exchanged with the other side (5b) of the heat exchange unit (5), becomes lower in temperature, and flows into the second chamber (4). Qd indicates high temperature dry air heated by the heating means αO.Next, the operation will be explained. The heat exchange unit (5) has a cooler unit (7)
A low-temperature refrigerant is supplied from the pipe (8), and after heat exchange, the refrigerant is circulated through the pipe (9) into the cooler unit (7), where it becomes a low-temperature refrigerant again, and then flows through the pipe (8). The refrigerant is supplied to the heat exchange unit (5), and such a refrigerant circulation operation is repeatedly performed. On the other hand, the first
When the high-temperature, high-humidity air introduced into the chamber (3) passes through one side (5a) of the heat exchange unit (5), there is a gap between it and the refrigerant flowing in the piping on that side (5a). The air iQa is heat-exchanged and becomes low-temperature air iQa, which flows into the eighth chamber (6) and flows to the other side (5b) of the heat exchange unit (5). When the air Qa in the eighth chamber (6) passes through the other side (5b) of the heat exchange unit (5), the air Qa in the eighth chamber (6) passes through the other side (5b) of the heat exchange unit (5).
It exchanges heat with the refrigerant flowing in the pipe 5b), becomes air Qb with a lower temperature and lower absolute humidity, and flows into the second chamber (4). Air Q flowing into the second chamber (4)
b is high-temperature dry air Q heated by heating means αG
It is derived as d. This high temperature dry air Qd is supplied to equipment (not shown) that requires high temperature dry air.

By the way, the temperature distribution in the air heat exchange process is as shown in FIG. That is, the temperature of the humid air in part A is Tw, and the temperature of the humid air in part A is Tw.
) The heat exchange on one side (5a) results in air Qa having a lower temperature Ta in part B. In addition, a heat exchange unit (
By heat exchange on the other side (6b) of 5), the 90 part becomes a lower temperature air Qb with a lower temperature n and a lower absolute humidity, and is heated by the heating means CIO and becomes a high temperature dry air Qd in the D part. Become.

[Problem that the invention seeks to solve]

However, in the conventional device described above, the heat exchange unit (
Since the heat exchange in step 5) lowers the temperature from temperature Tw to temperature Th, that is, rapidly cools it, the load on the cooler unit (7) increases rapidly, so one cooler unit (7)
was becoming larger. In addition, in order to obtain dry air by raising the temperature from the temperature to the temperature Td in the second chamber (4), that is, to rapidly heat the air, the load on the heating means αO increases rapidly, so the heating means QO It had a large capacity.

This invention was made in order to solve the above-mentioned problems, and it is an object of the present invention to provide an economically superior heat exchange device that can reduce the load in heat exchange. Means for Solving the Problem] The heat exchange device according to the present invention has the heat absorption side of the heat pipe unit disposed upstream on one side of the heat exchange unit, and the heat radiation side of the heat pipe unit disposed downstream on the other side of the heat exchange unit. The heat exchange unit and the heat pipe unit are integrated, and a second heat exchange unit is disposed downstream on one side of the heat exchange unit.

[Effect]

The heat exchange device according to the present invention absorbs the heat of high-temperature vapor-density air on the endothermic side of the heat pipe unit, lowers the air temperature, and directs it to one side of the heat exchange unit. The exchange load is divided, and the heat absorbed on the heat absorption side of the heat pipe unit is transported to the emission side of the heat pipe unit, and then released into the low temperature air with low vapor density led out from the other side of the heat exchange unit. Raise the temperature of the air.

〔Example〕

Hereinafter, one embodiment of the present invention will be described based on FIGS. 1 and 2. In Figures 1 and 2, (1) to (4)
, (61 to (10 are the same as the vt configuration of the conventional device described above. 0υ is arranged on the first chamber (3) side on one side (lla) and on the second chamber (4) side on the other side (ob). ) side, the heat exchange unit (2) has a heat absorption side (12a) arranged upstream on one side (lla) of the heat exchange unit αυ in the first chamber (3), and a heat radiation side (12b) is disposed downstream of the other side (llb) of the heat exchange unit 0υ in the second chamber (4), that is, between the other side (llb) and the heating means 00, and is integrated with the heat exchange unit aυ. The heat exchange unit (b) is a heat pipe unit in which a working liquid such as fluorocarbon, ammonia, water, etc. is sealed in each of a plurality of tube bodies (12c) constituting the heat vibe unit (2).
The refrigerant inlet and refrigerant outlet are connected to piping (alt (9)).
) are connected together with the cooler unit (7) to form a refrigerant circulation circuit. (13 is the second heat exchange unit disposed downstream of one side (lla) of the heat exchange unit α. For example, one side (1aa) is downstream of the one side (lla) of the heat exchange unit 0υ. located on the other side (18
b) is located upstream of the other side (llb) of the heat exchange unit (b), and the refrigerant inlet and refrigerant outlet of the second heat exchange unit (to) are connected to pipes α4 and Ql9,
A refrigerant circulation circuit is configured together with the cooler unit (7). In addition, in the figure, Ql absorbs heat on the endothermic side (12a) of the heat pipe unit @, lowers the temperature to the air temperature T1, flows out to part A, and is transferred to one side (12a) of the heat exchange unit αυ.
% of air flowing into the heat exchange unit (9
) and one side (lla) of the lower temperature T.
! The air Qs flowing out to 88 parts is heat exchanged with one side (lflla) of the second heat exchange unit (to) to a lower temperature T.

The air Q4 that flows out into the 8th chamber (6) is heat exchanged with the other side (18b) of the second heat exchange unit (to), becomes a low temperature T4, and flows out into the 82nd part. air,
Qb is the air that undergoes heat exchange with the other side (llb) of the heat exchange unit α, reaches an even lower temperature, flows out to part 6, and flows into the heat dissipation side (12b) of the heat vip unit (U), Q , is the heat pipe unit) (the heat radiation side of Ll (12
b), the air is heated to the air temperature T, flows out to the C1 section, and flows into the heating means αO; Qd is the heating means G;
It is dry air heated by O and at a temperature Td.

Next, the movement will be explained. The heat of the high-temperature, high-humidity air Qw at the temperature Tw introduced into the first chamber (3) is absorbed by flowing through the heat absorption part (12a) of the heat pipe unit (2). That is, the heat absorption part (lza) of the heat pipe unit @ is heated, and this heating causes the pipe body (lza) to heat up.
12c) The working liquid sealed inside is also heated, absorbs the heat from the air shaft as latent heat of vaporization, and vaporizes it to the heat radiation side (12b) of the heat pipe unit (2) and the pipe body (12c)
Move internally. The vapor of the working liquid that has moved to the heat radiation side (12b) of the heat pipe unit (2) is cooled by the flow of the low-temperature, low-absolute-humidity air Qb flowing out from the other side (llb) of the heat exchange unit Qη. Ru. 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, raising the temperature of the air Qb. The condensed and liquefied working liquid moves inside the tube body (12c) and returns to the endothermic side (12a) of the heat pipe unit (2).

In this way, the pipe body (
By repeatedly vaporizing and liquefying the working liquid in the heat pipe unit (12c), the heat of the high temperature and humid air Qw flowing through the heat absorption side (12a) of the heat pipe unit (2) is transferred to the heat pipe unit (6). ) from the heat radiation side (12a) of the heat pipe unit (2) to the heat absorption side (12b) of the heat pipe unit (2) and radiates the heat into the low temperature and low absolute humidity air Qb. Therefore, the high temperature and high humidity air Qw is transferred to the heat pipe. By flowing through the endothermic side (12a) of the unit (2), the air Q1 whose temperature has been lowered from the air temperature Tw to the air temperature T1 flows out to the A1 section.

The air Q1 flowing out into the A1 section flows through one side (lla) of the heat exchange unit (b), where it undergoes heat exchange and changes from air temperature T to air temperature T! The air temperature has been lowered to Q! and flows out to part B1. The air Q flowing out to the 81st part is heat exchanged by flowing through one side (18a) of the second heat exchange unit (to) and becomes air Q whose temperature is lowered from the air temperature Tt to the air temperature T. and flows out into the eighth chamber (6). The air Q3 flowing out into the eighth chamber (6) was heat exchanged by flowing through the other side (18b) of the second heat exchange unit (2), and its temperature was lowered from the air temperature Ts to the air temperature T4. It becomes air q and flows out to 82 parts. The air Q4 flowing out to this part is transferred to the other side (l) of the heat exchange unit (b).
lb) through which heat is exchanged and the air temperature T4
The temperature is lowered from the temperature to the air temperature Tb, and the air Qb becomes low temperature and low absolute humidity, and flows out to the 6th part. The air flowing out into the 6th part is heated by flowing through the heat radiation side (12b) of the heat pipe unit (2), and the air temperature changes from the air temperature n to the air temperature T.
The air Q becomes heated to , and flows out to the C1 section.

The air Q, which has flowed out into the C1 section, is heated by the heating means GO from the air temperature T to the air temperature Td, and flows out into the D section as high-temperature dry air Qd.

As described above, one side (lla) of the heat exchange unit αη
The heat absorption side (12
a) is installed to lower the temperature from the air temperature Tw to the air temperature T1, so the heat exchange in the heat exchange unit 0υ, Q3 is from the air temperature Tl to the air temperature Th, and the heat exchange load is shared between the two. In particular, since the load on the cooler unit (7) can be significantly reduced compared to the conventional one, it is possible to downsize the cooler unit (7). or,
The heat radiation side (L!b) of the heat pipe unit (2) is arranged downstream of the other side (nb) of the heat exchange unit αυ to raise the temperature from the air temperature 9 to the air temperature T. The heating by the means 00 is from the air temperature T to the air temperature Td, and compared to the conventional one, the load on the heating means αG can be significantly reduced, and the capacity of the heating means 00 can be reduced. becomes. In addition, the heat radiation side (12b) of the heat pipe unit @
) If the air Q5 at the air temperature T11 is sufficient due to the heating effect of .

It performs a heat exchange operation by repeating the natural operation of liquefaction, does not require a separate driving source, and is maintenance-free and extremely economical.

In the above embodiment, a case has been described in which the second heat exchange unit performs heat exchange on both one side and the other side, but the configuration may be such that only one side is used and the ability of the other side is added.

In addition, in the above embodiment, a case was described in which heat exchange is performed with high temperature and high humidity air, but when heat exchange is performed with high temperature air having a high vapor density corresponding to the water vapor density of condensing and evaporating chemicals, for example. The present invention can also be applied to this embodiment, and the same effects as in the above embodiment can be obtained.

〔Effect of the invention〕

This invention absorbs the heat of high-temperature vapor-density air on the endothermic side of the heat pipe unit as described above, lowers the air temperature, and directs it to one side of the heat exchange unit. A second heat exchange unit is installed downstream of the heat pipe unit, and the heat absorbed on the heat absorption side of the heat pipe unit is transferred to the heat radiation side of the heat pipe unit, and the low-temperature steam is drawn out from the other side of the heat exchange unit. Since the heat exchanger is discharged into low-density air and the temperature of the air is raised, it is possible to obtain a heat exchange device that can improve the heat exchange characteristics of the heat exchange unit.

[Brief explanation 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 characteristic diagram showing heat exchange characteristics according to the present invention, FIG. 8 is a cross-sectional view showing a conventional heat exchange device, and FIG. FIG. 4 is a characteristic diagram showing conventional heat exchange characteristics. In the figure, αυ is a heat exchange unit, (lla) is one side, (llb) is the other side, (2) is a heat pipe unit, (12a) is the heat absorption side, (12b) is the heat radiation side, and Q3
c) A second heat exchange unit. Note that the same reference numerals in the figures indicate the same or similar parts.

Claims (1)

[Claims] High-temperature air with high vapor density is introduced into one side of the heat exchange unit to exchange heat and become air at a lower temperature, and then that lower temperature air is introduced into the other side of the heat exchange unit to exchange heat and become even lower temperature. derived as air with low vapor density,
In a heat exchange device for heating air with low vapor density to obtain dry air, the heat absorption side is arranged upstream of one side of the heat exchange unit, and the heat radiation side is arranged downstream of the other side of the heat exchange unit. A heat exchanger comprising: a heat pipe unit disposed in and integrated with the heat exchange unit; and a second heat exchange unit disposed downstream on one side of the heat exchange unit. Device.