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Polymer material small-sized humidifying-dehumidifying desalination apparatus and manufacturing method

A technology of polymer materials and random packing, applied in the field of miniaturized humidification-dehumidification and desalination devices of polymer materials, can solve the problems of complex structure, difficulty in miniaturization, high manufacturing cost, etc., and achieve improved space allocation and wide application prospects , Promote droplet condensation of water vapor and enhance heat transfer

Inactive Publication Date: 2007-10-10
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existing humidification-dehumidification desalination equipment is mainly made of metal materials, or the structure is complex, it is difficult to miniaturize, and the manufacturing cost is relatively high

Method used

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  • Polymer material small-sized humidifying-dehumidifying desalination apparatus and manufacturing method
  • Polymer material small-sized humidifying-dehumidifying desalination apparatus and manufacturing method

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Embodiment Construction

[0028] The present invention is further described in conjunction with accompanying drawing:

[0029] Mix 90% polypropylene, 5% polyphenylene ether and 5% graphite. After melting, use a spinneret composed of two concentric rings with gaps and textured inner ring surface to melt the molten material. Extruded and stretched to form a heat transfer tube 7 with a textured inner wall and a smooth outer wall, the average inner diameter of the heat transfer tube 7 is 3.5 mm, and the wall thickness is 30 μm. Concentration is that the ozone gas of 15mg / L is passed in the heat transfer tube 7, and processing time is 30 minutes. The treated inner wall surface of the heat transfer tube 7 has a certain degree of hydrophilicity and roughness, while the outer wall surface is a hydrophobic and smooth surface. The steam of the gas produces droplet condensation on the outer wall to enhance heat transfer.

[0030] Drill 43 tube holes with an inner diameter of 4.0mm on two polypropylene tube shee...

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Abstract

The invention discloses a high polymer miniaturized humidifying- dehumidifying device and the manufacturing method thereof, belonging to sea water or bitter saline water desalting technique. And the device comprises heat exchanger and gas-liquid separator, where the heat exchanger comprises casing and upper and lower manifolds, each manifold is connected with the casing through a connecting tube plate, and a heat conduction tube bundle passes through between the two connecting tube plates and flow turning plate is arranged between them; there are communicating pipe and auxiliary heating mouth between the upper manifold and the casing; the lower manifold contains fillings; the lower part of the casing is made wit mouth connected with the gas-liquid separator. And the manufacturing method adopts fusion method to manufacture heat conduction tube whose inner wall has vein and hydrophilic layer, connects the heat conduction tube with a tube plate, installs flow turning plate, places in the casing, then installs the other tube plate and the upper and lower manifolds, and installs the communicating pipe and the gas- liquid separator. And the device is made from high polymer, corrosion- resistant, low-cost in manufacturing, and having wide applicability.

Description

technical field [0001] The invention relates to a polymer material miniaturized humidification-dehumidification desalination device and a manufacturing method, belonging to seawater or brackish water desalination technology. Background technique [0002] Humidification-dehumidification is a technology based on small-scale desalination of seawater or brackish water. The device is divided into two units, humidification and dehumidification, and is coupled in the same insulating space with a heat transfer element. The principle of humidification-dehumidification is based on the characteristic that the carrier gas can carry a large amount of water. The salt water forms a falling film on the humidification side, vaporizes and wets the carrier gas, and then introduces the humidified carrier gas into the dehumidification unit to condense to produce fresh water. , the latent heat of condensation is transferred to the humidification unit through the he...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/04C02F103/08
CPCY02A20/124
Inventor 王世昌成怀刚丁涛
Owner TIANJIN UNIV
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