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

A technology of polymer materials and random packing, which is applied in the field of miniaturized humidification-dehumidification and desalination devices of polymer materials, can solve the problems of high manufacturing cost, difficulty in miniaturization, complex structure, etc., and achieves improved space distribution and wide application. Prospects, the effect of promoting dropwise condensation of water vapor and enhancing heat transfer

Inactive Publication Date: 2006-10-25
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 301 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 she...

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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 heat t...

Claims

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Application Information

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Patent Type & Authority Applications(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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