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Zero power-driven dehumidification device

A power-driven, dehumidifying liquid technology, applied in the field of dehumidifying devices, can solve the problems of dehumidifying liquid heating up, reducing the moisture absorption performance of dehumidifying liquid, heating, etc., and achieve the effect of reducing dehumidification cost, improving dehumidification effect and simplifying the structure

Active Publication Date: 2017-12-15
DONGGUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, many dehumidification systems based on membrane contactor technology have been proposed in the industry, but these membrane dehumidifiers must use liquid pumps or other mechanical power devices to drive dehumidification liquid for dehumidification
When the liquid pump operates with a small flow rate, the efficiency is low, which will cause heat generation and increase the temperature of the dehumidification liquid, thereby reducing the moisture absorption performance of the desiccant liquid. In addition, the circulating input power of the liquid pump accounts for most of the system power consumption

Method used

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Examples

Experimental program
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Embodiment 1

[0031] Such as figure 1 As shown, a zero-power-driven dehumidification device provided by an embodiment of the present invention includes a dehumidifier 7 and a regenerator 14 .

[0032] Specifically, the dehumidifier 7 includes a first air channel, a multi-stage hollow fiber membrane contactor and a cooling pipeline 5 . Wherein, the multi-stage hollow fiber membrane contactor is arranged in the first air channel; in the multi-stage hollow fiber membrane contactor, the hollow fiber tubes of the hollow fiber membrane contactors at all levels are connected in series in sequence, and the hollow fiber membranes of each stage Both ends of the contactor are provided with cavities 3, and each cavity 3 is provided with a cooling coil 2; the cooling pipeline 5 communicates with each cooling coil 2 to form a cooling flow channel, and the circulation in the cooling flow channel Run cold water.

[0033] The structure of the regenerator 14 is similar to that of the dehumidifier 7, specif...

Embodiment 2

[0043] Such as figure 2 As shown, the embodiment of the present invention is improved and perfected on the basis of the first embodiment. Specifically, this embodiment further includes a preheater 23 and a precooler 28 in addition to the structures included in the first embodiment.

[0044] The preheater 23 is a sleeve-type preheater, including a middle pipeline and an outer sleeve; the middle pipeline is connected between the upper end of the multi-stage hollow fiber membrane contactor of the dehumidifier 7 and the first dehumidification liquid pipeline. space for the dehumidification liquid to flow through; the outer sleeve is sleeved and covered on the outside of the middle pipeline, and the outer sleeve is filled with flowing hot water for pre-conditioning the dehumidification liquid in the middle pipeline. heating.

[0045] Further, the hot water in the outer casing of the preheater 23 flows from the first desiccant liquid pipeline end to the dehumidifier end. That is...

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Abstract

The invention provides a zero power-driven dehumidification device which comprises a dehumidifier and a regenerator, wherein both ends of a multi-level hollow fiber membrane contactor of the dehumidifier communicate with those of a multi-level hollow fiber membrane contactor of the regenerator through a dehumidification liquid pipeline, so as to form an enclosed dehumidification liquid flowing channel; a dehumidification liquid flows in the enclosed dehumidification liquid flowing channel in a circulating manner; in the cavities of the dehumidifier, cold water in cooling coil pipes exchanges heat with the dehumidification liquid in hollow fiber pipes of the corresponding hollow fiber membrane contactor bodies at all levels, so as to cool the humidification liquid; and in the cavities of the regenerator, hot water in heating coil pipes exchanges heat with the dehumidification liquid in hollow fiber pipes of the corresponding hollow fiber membrane contactor bodies at all levels, so as to heat the humidification liquid. According to the zero power-driven dehumidification device provided by the invention, the dehumidification operation can be performed without a liquid pump, thereby simplifying the dehumidification system structure and greatly reducing the dehumidification cost; and besides, latent heat released from the liquefaction of water vapor can be taken away by the cavities at all levels of the dehumidifier in time, thereby keeping the relatively low temperature of the dehumidification liquid and improving the dehumidification effect of the dehumidification liquid.

Description

technical field [0001] The invention relates to the field of dehumidification devices, in particular to a zero-power driven dehumidification device. Background technique [0002] Air humidity is an important index to evaluate air quality, which has a great impact on people's life and industrial production. Studies have found that the most suitable relative humidity for the human body is 40-60%. Too high air humidity will make people feel uncomfortable and induce diseases; too high air humidity will also cause a large number of certain viruses and bacteria to multiply inside the building. In most parts of my country, the monsoon climate is obvious, and the climate is characterized by high temperature, humidity and rain. Therefore, when necessary, the air needs to be dehumidified. [0003] At present, the commonly used air dehumidification methods include cooling dehumidification, adsorption dehumidification, absorption dehumidification and rotary dehumidification. Cooling ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F3/14B01D53/14B01D53/26
CPCB01D53/1425B01D53/263F24F3/1417F24F2003/144
Inventor 黄斯珉杨敏林曾少鸿杨宇陶实胡冰
Owner DONGGUAN UNIV OF TECH