JP3538223B2 - Wall flow collector for mass and / or heat exchange tower - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a material and / or heat exchange tower in which a liquid and a gas are brought into contact with each other in countercurrent to contact with each other. The present invention relates to a liquid collecting device.

[0002]

2. Description of the Related Art A substance and / or heat exchange column is a device in which a so-called packing material is filled in a column, a liquid flows down from above the column, and a gas flow rises from below. Thus, the liquid and the gas spread on the surface of the filler are brought into contact with each other to exchange substances and / or heat. In such a substance and / or heat exchange tower, there is a problem that a gas flows along the inner wall of the tower, that is, a so-called wall flow is generated, and the gas-liquid contact efficiency is reduced.

[0003] This problem will be described below. The filler used in the so-called gas-liquid contact tower as described above is generally formed by combining a plurality of corrugated sheet-like substrates having folds formed on the surface thereof so that the folds intersect each other, Is formed by configuring a laminated member having a cross section adapted to the inner periphery of a cylindrical tower, and a gas-liquid contact tower is configured by arranging the filler laminated material in the tower. During the operation of the tower, when the liquid flows down from above the tower and the gas rises from below,
Since the flowing liquid contacts the gas while spreading in the horizontal direction on the surface of each sheet-like base material constituting the filler, the gas-liquid contact efficiency is improved.

[0004] However, a small gap is inevitably formed between the thus formed filler laminate and the tower wall, and the liquid flowing into this gap flows straight down without developing in the lateral direction. Therefore, there is a problem that the diffusion of the liquid as a whole of the column is reduced, and the degree of contact with the gas is reduced by the reduced amount.

[0005] As means for eliminating the wall flow of the liquid, conventionally, a wall flow prevention device is attached to the side peripheral portion of the filler laminate. FIG. 1 shows an example of a conventionally used wall flow prevention device. The conventional wall flow prevention device 2 is attached in a substantially horizontal direction in close contact with a side peripheral portion of the filler laminated material 1, and covers the peripheral portion of the filler laminated material over the entire circumference. A longitudinal slit 3 is formed at an upper portion of the laterally extending strip-shaped member at an interval, and the cut portion 4 is bent outward so that the end of the bent portion 3 formed contacts the inner wall of the tower 20. Or very close to each other (see FIG. 1a). Also, in general,
Similarly, a vertical cut is made in the lower part of the wall flow prevention device, and the cut portion 5 is bent inward to engage with the filler assembly 1 so that the liquid flowing along the wall flow prevention device is filled with the filler assembly. It is formed so as to be more easily introduced into the material (see FIG. 1b). By attaching such a wall flow prevention device to the side peripheral edge of the packing glue, the liquid flowing down along the inner wall surface of the tower is guided into the inside of the packing glue by the bent portion 4 of the device. Are spread laterally in the filler, and as a result, the gas-liquid contact efficiency, which has been reduced by the generation of the wall flow of the liquid, can be increased.

[0006] Since such a conventional wall flow prevention device is housed in a tower so as to be integrated with the filler laminated material, various restrictions are imposed on the housing in the tower. First, in the case where a convex portion is formed on the inner wall surface of the tower, the bent portion of the wall flow preventing device is caught by the convex portion. It may be difficult to insert the glued laminated timber smoothly into the tower. Secondly, in order to insert a packing material with such a wall flow prevention device into a tower, it is absolutely necessary to insert the packing material from above the tower. This is because the folds 4 are generally formed so as to be inclined upward and outwardly in order to capture the wall flow of the liquid by the folds 4 and effectively guide the liquid into the interior of the filler glue. It is because it is extremely difficult to insert the filler glued wood to which such a wall flow prevention device is attached from below the tower because the bent portion of the wall flow prevention device rubs against the tower wall. .

[0007]

The inventor of the present invention has conducted intensive studies to develop an apparatus for preventing wall flow that has solved the above-mentioned limitations, and as a result, the apparatus has a form integrated with the filler laminated material. Instead, we have developed a wall-flow liquid collecting device that can be installed inside the tower separately from the filler glulam.

[0008] That is, the wall flow collecting device according to the present invention is a column in which liquid and gas are supplied from above and gas and liquid are brought into contact with each other to exchange material and / or heat between the two materials. A device for collecting a liquid flow flowing along the inner wall surface of the tower and guiding the liquid flow into the inside of the tower, wherein a gap is provided at a lower portion of a band-shaped member extending in the circumferential direction along the inner peripheral surface of the tower. A wall formed by making a notch in the longitudinal direction and bending the notch toward the inside of the tower, and having a peripheral length extending member provided at at least one point on the periphery thereof. The present invention relates to a liquid collecting device.

The wall flow collecting device according to the present invention will be described below with reference to the drawings.

FIG. 2 is a view showing a wall flow collecting device according to the present invention. The wall flow collecting device according to the present invention includes a longitudinally extending slit 12 at a lower portion of a band-shaped member 11 extending in the circumferential direction along the inner peripheral surface of the tower 20, and the slit 13 is formed in the tower. And a peripheral length adjusting member is provided at at least one location on the periphery of the wall flow collecting device. When installing the wall flow collecting device according to the present invention in the tower, by adjusting the peripheral length adjusting member, the peripheral length of the device is smaller than the inner circumference of the tower, from above or below the tower At any point where the device is to be inserted and where the device is to be secured, adjust the perimeter adjusting member to extend the perimeter of the device and press the outer surface of the device against the inner surface of the tower, This pressure holds the wall-flow collector on the inner wall of the tower.

When such a wall-flow collecting device of the present invention is used, the liquid flowing down along the inner wall of the tower 20 is captured by the wall-flow collecting device, and the inside of the tower is bent along the bent portion 13. And falls downward from its tip. As described above, the wall flow collecting device according to the present invention can effectively capture the wall flow of the liquid flowing down along the inner wall surface of the tower and guide it to the inside of the tower. In addition, there is no restriction on accommodating in the tower which cannot be avoided in the wall flow prevention device integrated with the conventional packing glue, and it can be inserted from above or below the tower. And can be held anywhere in the tower.

The peripheral length adjusting member used in the apparatus of the present invention is such that the peripheral length of the apparatus is adjusted to be smaller than the inner circumference of the tower when the apparatus is inserted into the tower, so that the apparatus can be easily inserted into the tower.
When fixing at an arbitrary position in the tower, the outer circumference of the wall flow collecting device is adjusted to be slightly larger than the inner circumference of the tower, and the outer peripheral surface of the wall flow collecting device is pressed against the inner wall surface of the tower. Is a member that can be held on the inner wall of the. As an example of a peripheral length adjusting member that can be used, as shown in FIG. 2, one or more locations of a wall flow collecting device are cut, and a peripheral edge adjusting member mounting piece 15 is formed at each cut end. A gap adjusting member 14 composed of a screw member such as a bolt and a nut is mounted between the mounting pieces 15,
A configuration in which the gap between the mounting pieces 15 is adjusted by this screw member is conceivable. In this case, when inserting the device into the tower, the screw member is rotated in a direction to reduce the gap between the mounting pieces 15 to reduce the peripheral length of the device, and the device is fixed at a predetermined position in the tower. At this time, the screw member is rotated in a direction to increase the gap between the mounting pieces 15 to increase the peripheral length, and the apparatus is fixed by pressing the outer periphery of the apparatus against the inner wall of the tower.

Further, as shown in FIG.
A configuration is conceivable in which a portion 16 which is curved inward is provided at more than the point, and the peripheral length of the device is adjusted by bending the curved portion. In this case, when inserting the device into the tower, the peripheral length of the device is reduced by bending the curved portion, and at a predetermined position of the device,
The restoring force of the curved portion 16 releases the force used to deflect the curved portion 16 to press the outer periphery of the device against the inner wall of the tower, and the pressing force secures the device on the tower wall. .

Further, as shown in FIG. 4, instead of bending a part of the band-shaped member 2 itself of the apparatus, a part of the apparatus is
It will be easily understood by those skilled in the art that the same effect as that of the embodiment shown in FIG. 3 can be obtained by installing the spring member 17.

As shown in FIG. 5, one or more holes 18 are formed in the bent portion 13 of the wall flow collecting device according to the present invention.
Is provided, the liquid also falls down from the hole, so that the liquid distribution effect can be further enhanced.At the same time, the gas rising in the tower flows upward through this hole, so that the gas generated by the bent portion This is preferable because the stagnation of the upward flow is reduced.

As shown in FIG. 6, the bent portion 13 of the wall flow collecting device according to the present invention is bent in a U-shape so that the liquid flowing through the bent portion 13 is bent.
It can also promote the flow to the tip portion of the.

It is preferable that the bent portion 13 in the wall flow liquid collecting apparatus according to the present invention be inclined downward toward the center of the tower to smooth the flow of the liquid along the bent portion. Generally, it is preferable that the angle of inclination is about 10 ° to 60 ° with respect to the horizontal direction.
More preferably, it is set to about 60 °. Generally, this angle is about 60 °.

[0018]

The wall flow collecting device according to the present invention employs the above-described structure, so that wall flow of a substance and / or liquid in a heat exchange tower can be effectively eliminated. ,
Insertion from any direction of the tower, without the various restrictions inevitable in conventional wall flow prevention equipment,
It can be fixed at any position in the tower.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration of a conventional wall flow prevention device.

FIG. 2 is a diagram showing a configuration of a wall flow collecting device according to the present invention.

FIG. 3 is a diagram showing a configuration of a wall flow collecting device according to another embodiment of the present invention.

FIG. 4 is a diagram showing a configuration of a wall flow collecting device according to another embodiment of the present invention.

FIG. 5 is a diagram illustrating a configuration of a bent portion of the wall flow collecting device according to one embodiment of the present invention.

FIG. 6 is a diagram illustrating a configuration of a bent portion of the wall flow collecting device according to one embodiment of the present invention.

Continuation of the front page (56) References JP-A-7-80279 (JP, A) JP-A-7-116505 (JP, A) JP-A-6-142401 (JP, A) JP-A 8-982 (JP) , A) Fully open 60-115538 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) B01D 3/00-3/42 B01J 10/00-12/02 B01J 14/00 -19/32

Claims (1)

(57) [Claims] 1. A liquid is supplied from above and a gas is supplied from below,
A device for collecting a liquid flow flowing along an inner wall surface of a tower and guiding the liquid flow into the tower in a tower in which gas and liquid are brought into contact with each other to perform substance and / or heat exchange between the two substances. A vertical notch is provided at a lower portion of the band-shaped member extending in the circumferential direction along the inner peripheral surface of the tower at intervals, and the cut portion is formed by bending toward the inside of the tower, A wall flow collecting device, wherein a peripheral length adjusting member is provided at at least one position on the periphery.