Novel plastic filler

Abstract

The invention discloses a filler sheet. The filler sheet comprises a strength support layer and is characterized by further comprising a hydrophilic layer which is compounded on the surface of the strength support layer. The filler sheet has the advantages of high uniform distributivity of liquid on the surface of a filler, larger gas-liquid contact area and improvement on mass transfer efficiency due to the hydrophilic layer on the surface of the filler sheet. The invention also discloses the filler made of the filler sheet.

Description

technical field

[0001] The invention relates to a packing, in particular to a structured packing made of composite materials, which is mainly used in a gas-liquid environment as a carrier for gas-liquid mass transfer. Background technique

[0002] Most of the structured packings currently used in industry are corrugated packings, which are assembled from multiple single-layer corrugated packing sheets. According to the structure, corrugated packing can be divided into wire mesh corrugated packing, plate corrugated packing, pulse corrugated packing, etc., and its material can be divided into paper, metal, plastic and ceramics.

[0003] 200410080055.4 "Silk Mesh Corrugated Packing" of Beijing University of Chemical Technology is composed of more than two layers of wire mesh laminated into a wire mesh sheet with a layered gap structure. The protruding broken-line corrugated ridgelines interact with the gaps in the mesh holes, so that the liquid forms more liquid films on the s...

Examples

Embodiment 1

[0042] like figure 1 As shown, the hydrophilic non-woven fabric is pasted on the plastic alloy (30%PE+70%PP), and then rolled and thermoformed to form a corrugated shape with a wave height of 7mm. like image 3 As shown, the packing sheets are connected in series, the assembled packing size is 1200mm×600mm×300mm, and the windward side is 1200mm×600mm.

Embodiment 2

[0044] like figure 1 As shown, the plastic alloy (30%PE+70%PP) is laminated with hydrophilic weaving cloth by laminating method, and then rolled and thermoformed to form a corrugated shape with a wave height of 7mm. like image 3 As shown, the packing sheets are connected in series, the assembled packing size is 1200mm×600mm×300mm, and the windward side is 1200mm×600mm.

Embodiment 3

[0050] The packing efficiency test was carried out under the same conditions for the packings prepared in the above-mentioned Examples 1-2 and Comparative Examples 1-2. The efficiency test adopts the test method commonly used in the HVAC field. Wet the filler with cold water from top to bottom, and the wind blows through the filler from the front, measure the temperature and humidity before and after the wind passes through the filler and the temperature and humidity of the filler surface, and calculate the heat transfer efficiency of the filler. The test results are shown in Table 1.

[0051] Table 1 Packing efficiency test results

[0052] Example

[0053] According to the results in Table 1, it can be seen that the mass transfer efficiency of Example 1-2 implemented according to the technical solution of the present invention is obviously higher than that of the prior art.

technical field

[0001] The invention relates to a packing, in particular to a structured packing made of composite materials, which is mainly used in a gas-liquid environment as a carrier for gas-liquid mass transfer. Background technique

[0002] Most of the structured packings currently used in industry are corrugated packings, which are assembled from multiple single-layer corrugated packing sheets. According to the structure, corrugated packing can be divided into wire mesh corrugated packing, plate corrugated packing, pulse corrugated packing, etc., and its material can be divided into paper, metal, plastic and ceramics.

[0003] 200410080055.4 "Silk Mesh Corrugated Packing" of Beijing University of Chemical Technology is composed of more than two layers of wire mesh laminated into a wire mesh sheet with a layered gap structure. The protruding broken-line corrugated ridgelines interact with the gaps in the mesh holes, so that the liquid forms more liquid films on the s...

Examples

Embodiment 1

[0042] like figure 1 As shown, the hydrophilic non-woven fabric is pasted on the plastic alloy (30%PE+70%PP), and then rolled and thermoformed to form a corrugated shape with a wave height of 7mm. like image 3 As shown, the packing sheets are connected in series, the assembled packing size is 1200mm×600mm×300mm, and the windward side is 1200mm×600mm.

Embodiment 2

[0044] like figure 1 As shown, the plastic alloy (30%PE+70%PP) is laminated with hydrophilic weaving cloth by laminating method, and then rolled and thermoformed to form a corrugated shape with a wave height of 7mm. like image 3 As shown, the packing sheets are connected in series, the assembled packing size is 1200mm×600mm×300mm, and the windward side is 1200mm×600mm.

Embodiment 3

[0050] The packing efficiency test was carried out under the same conditions for the packings prepared in the above-mentioned Examples 1-2 and Comparative Examples 1-2. The efficiency test adopts the test method commonly used in the HVAC field. Wet the filler with cold water from top to bottom, and the wind blows through the filler from the front, measure the temperature and humidity before and after the wind passes through the filler and the temperature and humidity of the filler surface, and calculate the heat transfer efficiency of the filler. The test results are shown in Table 1.

[0051] Table 1 Packing efficiency test results

[0052] Example

[0053] According to the results in Table 1, it can be seen that the mass transfer efficiency of Example 1-2 implemented according to the technical solution of the present invention is obviously higher than that of the prior art.

Images