JPH0419345Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to an improvement of a gas-liquid dispersion device for a plate-fin type heat exchanger.

Prior Art and its Problems A gas-liquid dispersion device for a plate-fin type heat exchanger is a device whose purpose is to uniformly disperse a gas-liquid two-phase fluid to the effective fins in the heat exchanger body.

The conventional gas-liquid dispersion device A, as shown in FIG.
A dispersion core B in which a confluence fin 1 and a flow path 2 are alternately stacked across a partition plate 3 provided with a through hole (not shown), and a gas or liquid in the flow path 2 of this dispersion core B. The header 4 is configured to include a header 4 for introducing the header.

Further, the gas-liquid dispersion device A includes a distribution section 29 configured by stacking inclined fins 6, straight fins 7, etc. provided at the bottom of a plate-fin type heat exchanger 8 having effective fins 5. , the dispersion core B is attached by welding within a header 10 attached to the bottom surface 9 of the distribution section 29. This header 10 is for introducing liquid or gas into the merging fin 1 of the dispersion core B.

In the gas-liquid dispersion device A configured as described above, the dispersion core B is assembled independently in advance and is welded to the bottom surface 9.
A gap (not shown) is provided at the joint between the straight fin 7 and the merging fin 1 inside the dispersion core B.
The gas or liquid introduced into the merging fin 1 or the flow path 2 is mixed into the gas-liquid two-phase fluid once uniformly dispersed in the dispersion core B, reducing the dispersion performance in the gas-liquid dispersion device A. It was the cause.

Purpose of the invention The present invention was devised in view of the above circumstances, and by eliminating the gap at the joint between the straight fin in the distribution section and the merging fin in the dispersion core, the gap caused by the gap is eliminated. The purpose of this is to prevent the deterioration in dispersion performance in the gas-liquid dispersion device that has been occurring.

Structure of the invention In order to achieve the above object, the main means adopted by the present invention is a gas-liquid contact type plate-fin type heat exchanger, a flow channel layer, and a merging fin section. a dispersion core connected with a header for introducing gas-liquid fluid into the liquid convergence layer, and a straight straight for distributing the gas-liquid fluid flowing from the dispersion core to the effective fins of the heat exchanger body. A gas-liquid dispersion device for a plate-fin heat exchanger connected through a distribution section having fins, wherein the merging fin section and the straight fin section are integrally connected. be.

Embodiments Hereinafter, embodiments embodying the present invention will be described with reference to the accompanying drawings to provide an understanding of the present invention.

It should be noted that the following example is a concrete example of the present invention, and is not intended to limit the technical scope of the present invention.

FIG. 1 is a perspective view of a liquid dispersion device for a plate-fin heat exchanger according to an embodiment of the present invention, viewed from below, and FIG. 2 is a perspective view of a liquid dispersion device according to another embodiment of the present invention. FIG. 3 is a perspective view of the device viewed from below.

The gas-liquid dispersion device C of the plate-fin type heat exchanger according to this embodiment has a flow path 1
3, a flow passage layer 13, and a merging fin section 14.
A dispersion core D to which headers 15 and 16 are connected for respectively introducing gas-liquid fluid into a gas-liquid convergence layer 14' consisting of a gas-liquid convergence layer 14'; The structure includes a distribution section 19 having an inclined fin 17 and a straight fin section 18 for distributing the distribution to the effective fins 11 of the vessel 12, and the merging fin section 14 and the straight fin section 18 are integrally constructed. It is formed by members.

The header 16 in this embodiment is attached to the bottom surface 20 of the distribution section 19 so as to completely cover the dispersion core D, and the header 15
In order to communicate the flow path layer 13' with the outside of the header 16, a through hole 2 is formed in the flow path layer 13'.
1 is attached to the side surface of the dispersion core D so as to communicate with each other.

In the gas-liquid dispersion device C of the present invention configured as described above, gas and liquid are supplied from the pipes 22 and 23 attached to the headers 15 and 16 to the flow path layer 13' of the dispersion core D, respectively. and the combined layer 14' separately. Thereafter, the gas-liquid fluid is transferred to the flow path layer 13' and the gas-liquid confluence layer 1.
The gas is uniformly dispersed within the gas-liquid convergence layer 14' through a through hole (not shown) provided in the partition plate 24 that partitions the liquid from the gas-liquid mixture layer 14', and becomes a gas-liquid two-phase fluid. Furthermore, the gas-liquid two-phase fluid flows into the inclined fins 17 via the straight fins 18 that are integrally structured with the merging fins 14 forming the gas-liquid merging layer 14', and flows into the slanted fins 17. It is distributed in a uniformly dispersed state to the effective fins 11 within.

In other words, the gas-liquid dispersion device C in the present invention has
Since there is no gap (not shown) like the joint between the merging fin 1 and the straight fin 7 of the gas-liquid dispersion device A (FIG. 3) in the prior art, the dispersion core D
(Fig. 1), without a monolayer flow of gas or liquid flowing into the gas-liquid two-phase fluid that has been uniformly dispersed in the
It is distributed to the effective fins 11 in its original uniformly dispersed state.

As mentioned above, the dispersion core D in this embodiment is provided on the bottom surface 20 of the distribution section 19, but the dispersion core D is installed in the heat exchanger 12.
It is possible to obtain the same effect as described above even if it is provided on the side or top of the.

Next, by simplifying the mounting structure of the dispersion core to the bottom of the distribution section while maintaining the dispersion performance in the gas-liquid dispersion device, it is possible to reduce the number of processing steps and reduce the cost. A possible improved embodiment is explained on the basis of FIG.

As shown in FIG. 2, the dispersion core E in this embodiment has a gas-liquid combined layer inlet and a through hole to the flow channel layer (see FIG. 1, 14' and 21), each of which contains either gas or liquid. Headers 27, 28 with pipes 25, 26 as means for inflowing water are connected independently.

Therefore, like the dispersion core D (FIG. 1),
In the header 16 that completely covers the dispersion core D, there is a header 15 that communicates with the dispersion core D, the through hole 21 to the flow path layer 13', and this header 15.
Since the installation work can be done in advance outside the independent header 27 (Fig. 2) without attaching the pipe 22 etc. provided in the header, the installation structure can be simplified and the processing man-hours can be reduced. Therefore, it can be reduced. As a result, it becomes possible to reduce the price.

Effects of the Invention As described above, the present invention provides a gas-liquid contact type plate-fin heat exchanger, a flow path layer, and a gas-liquid convergence layer consisting of a convergence fin section for introducing a gas-liquid fluid into each of them. A gas-liquid dispersion core connected to a header is connected to the dispersion core through a distribution section having a straight fin section for distributing the gas-liquid fluid flowing from the dispersion core to the effective fins of the heat exchanger body. The dispersion device is a gas-liquid dispersion device of a plate fin type heat exchanger characterized in that the above-mentioned merging fin section and the above-mentioned straight fin section are integrally connected. No gap is created at the joint with the merging fin in the core. Therefore, it is possible to prevent the deterioration in dispersion performance in the gas-liquid dispersion device caused by the above-mentioned gaps.

Furthermore, since the converging fin portion and the straight fin portion are formed of an integral structural member, as a secondary effect, it is also possible to reduce the cost by reducing the number of parts and the number of processing steps.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a gas-liquid dispersion device for a plate-fin heat exchanger according to one embodiment of the present invention, viewed from below, and FIG. 2 is a perspective view of the gas-liquid dispersion device according to another embodiment of the present invention. FIG. 3 is a perspective view of a conventional gas-liquid dispersion device of a plate-fin type heat exchanger as viewed from below. Explanation of symbols, 11... Effective fin, 12... Plate fin type heat exchanger, 13... Distribution path, 1
3′...Flow path layer, 14...Merging fin portion, 1
4'... Gas-liquid confluence layer, 15, 16... Header, 1
7... Inclined fin, 18... Straight fin portion, 19... Distribution portion, 20... Bottom surface, 21... Through hole, 22, 23... Pipe, 24... Partition plate, 2
5, 26...pipe, 27, 28...header, C
...gas-liquid dispersion device, D...dispersion core, E...dispersion core.

Claims (1)

[Claims for Utility Model Registration] (1) A gas-liquid contact type plate-fin heat exchanger,
A dispersion core connected with a header for introducing gas-liquid fluid into the flow channel layer and a gas-liquid convergence layer consisting of a confluence fin section, respectively, is connected to the dispersion core to which the gas-liquid fluid flowing from the dispersion core is heat-exchanged. A gas-liquid dispersion device connected via a distribution section having a straight fin section for distributing to the effective fins of the vessel main body, characterized in that the above-mentioned merging fin section and the above-mentioned straight fin section are integrally connected. A gas-liquid dispersion device using a plate-fin type heat exchanger. (2) A gas-liquid dispersion device for a plate fin type heat exchanger according to claim 1, wherein the header is independently connected to each of the gas-liquid convergence layer and the flow path layer.