JPH022413Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a refrigerated air dehumidifier.

[Prior Art] As a conventional refrigerating air dehumidifier, for example, those shown in FIGS. 3 and 4 are known. Figure 3 shows a two-cylinder air dehumidifier, with a passage 20
Two cylindrical containers 2 communicated by a and 20b
1a and 21b are provided with a precooler/reheater 22 and a cooler 23, while the one shown in FIG. 26 and a cooler 27 are arranged in parallel.

However, the former requires many welding points to join two cylindrical containers, has a complicated structure, and has a large number of parts, so it is time-consuming to manufacture.
Since the flow path of the air in 3 is in the longitudinal direction of the cylindrical container 21b, the flow velocity becomes large, so the pressure loss is large, and the condensed water condensed and separated in the cooler 23 is absorbed by the air passing around the cooler 23. On the other hand, the latter has a relatively simple structure, but like the former, it has the disadvantage of large pressure loss and low dehumidification efficiency.

[Problems to be solved by the invention] The invention simplifies the structure of the air dehumidifier as a single cylindrical container with a single wall, and also eliminates the pressure loss of circulating air and condensation separation using a cooler. The problem to be solved is to prevent condensed water from scattering in the air flowing through the cooler.

[Means for Solving the Problems] The present invention uses a single cylindrical container having a single wall to connect the two headers at both ends with two partition plates provided near both ends in the axial direction. and a heat exchange section having a long axial length in the middle, and in the heat exchange section,
The pre-cooling/reheater and the cooler connected to the refrigerator are installed parallel to the axial direction of the cylindrical container without partitioning them with partition walls, etc., and the pre-cooling/reheater is constructed using a plurality of pipes that communicate the two headers. and a large number of fins arranged perpendicularly thereto, and the heat exchange section and one header communicate with each other through a communication section provided at the end of the partition plate between them on the side of the cooler. A flow path is formed in the heat exchange section through which the air to be dehumidified mainly flows in the radial direction of the cylindrical container, and an inlet for the dehumidified air is provided on the precooling/reheater side of the heat exchange section, and an inlet for the dehumidified air is provided on the other header. The above problem is solved by providing an outlet.

[Function] Since there is no partition between the precooler/reheater and the cooler, the high temperature, high humidity air that flows into the precooler/reheater side of the heat exchange section from the inlet flows into the communication section on the cooler side. Since the air flows in the radial direction of the container, the flow rate is reduced due to the wide cross-sectional area of the heat exchange section, and the air is pre-cooled while flowing between the fins of the pre-cooling/reheater at a low speed, and the pre-cooled air is further cooled. It is cooled in a container and the water content is condensed and separated.

In this case, since the flow rate of air passing through the cooler is reduced, there is very little scattering of condensed water that has been condensed and separated in the cooler, so that the dehumidification efficiency is improved.

The air from which moisture has been separated passes through one header and flows through the multiple tubes of the precooler/reheater, where it is heated by the high-temperature air flowing between the fins and becomes dry air, which then flows out from the outlet of the other header. It is taken out of the dehumidifier.

[Embodiment] FIGS. 1 and 2 show an embodiment of the present invention, in which a single cylindrical container 1 having a single wall has two partition plates 2a provided near both ends in the axial direction, 2b, it is divided into two headers 3a, 3b at both ends and a heat exchange section 4 having a long axial length in the middle thereof,
In the heat exchange section 4, a precooler/reheater 5 and a cooler 6 are arranged parallel to the axial direction of the cylindrical container 1 without partitioning with partition walls or the like. That is, the heat exchange section 4
A cross section parallel to the partition plates 2a and 2b (Fig. 2)
A plurality of tubes 7, .
A precooling/reheater 5 is provided in the remaining lower half of the heat exchange section 4. A cooler 6 is provided in the longitudinal direction. This cooler 6 constitutes a well-known refrigerator together with a compressor 9, a condenser 10, an expansion valve 11, and the like.

The heat exchange section 4 and one of the headers 3b are communicated with each other through a communication section 12 formed on the cooler 6 side of the partition plate 2b between them. An inlet 13 for high-temperature, high-humidity air to be dehumidified is provided on the side of the container 5, and an outlet 14 for dehumidified air is provided on the header 3a. In FIG. 1, reference numeral 15 indicates a drain outlet provided below the header 3b.

The high-temperature, high-humidity air flowing into the above-mentioned air dehumidifier from the inlet 13 is passed through the fins 8 of the pre-cooling/reheater 5,...
The pipe 7, while being decelerated while flowing in a direction parallel to
...It is pre-cooled by exchanging heat with the low-temperature air flowing inside, which will be described later. The precooled air is cooled by a cooler 6 installed in parallel with the precooler/reheater 5, and the moisture contained therein is condensed and separated. The low-temperature air from which moisture has been condensed and separated passes through the communication part 12 and the header 3b, and is heated by heat exchange with the above-mentioned high-temperature and high-humidity air while flowing through the pipes 7, ... of the precooler/reheater 5. The air becomes dehumidified, and the air dehumidified in this way is
It is taken out to the outside from an outlet 14 provided in one header 3a.

The high-temperature, high-humidity air flowing through the heat exchange section 4 as described above flows out from the inlet 13 to the heat exchange section 4 having a wide flow path cross-sectional area, so that its flow velocity is reduced.
The precooler/reheater 5 and the cooler 6 provide sufficient cooling and reduce pressure loss.

Further, since the flow rate of the air flowing around the cooler 6 is slow, the water condensed and separated by the cooler 6 is prevented from being scattered by the air flowing between the fins of the cooler 6.

[Effects of the invention] The present invention uses a single cylindrical container with a single wall for the air dehumidifier, so the structure is simpler and the number of parts is smaller than that of two cylindrical containers. Can be made small.

In addition, in the heat exchange section having a long axial length in the single cylindrical container mentioned above, a pre-cooling/reheater and a cooler are arranged parallel to the axial direction without partitioning with a partition or the like. Since the air to be dehumidified is made to flow in the radial direction of the container perpendicular to the axis, the flow rate of the air flowing through the heat exchanger section is reduced, making it possible to sufficiently pre-cool and cool the air. In addition, since the condensed water condensed in the cooler is not scattered due to a decrease in the flow rate of air flowing through the cooler, dehumidification efficiency can be improved.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional front view of an embodiment of the present invention, FIG. 2 is a longitudinal sectional side view of the same, and FIGS. 3 and 4 are longitudinal sectional front views of a conventional refrigerating type dehumidifier. 1... Cylindrical container, 2a, 2b... Partition plate, 3
a, 3b...Header, 4...Heat exchange section, 5...Precooler/reheater, 6...Cooler, 7...Pipe, 8...Fin, 12...Communication part, 13...Inlet, 14...
Exit.

Claims (1)

[Scope of utility model registration request] A single cylindrical container with a single wall is separated by two partition plates located near both ends in the axial direction.
A cylindrical container is divided into two headers and a heat exchange section with a long axial length between them, and a pre-cooling/reheater and a cooler connected to the refrigerator are connected to the heat exchange section in a cylindrical container without partitioning with a partition or the like. The precooling/reheater is constructed of a plurality of tubes that connect both headers and a number of fins installed in a direction perpendicular to the tubes, and the heat exchanger and one header are arranged parallel to each other in parallel with the axial direction of the The header communicates with the header through a communication section provided at the cooler side end of the partition plate between them, thereby creating a flow path through which the air to be dehumidified flows mainly in the radial direction of the cylindrical container within the heat exchange section. 1. A refrigerating air dehumidifier, characterized in that a dehumidified air inlet is provided on the precooling/reheater side of the heat exchange section, and a dehumidified air outlet is provided on the other header.