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Photo-thermal evaporation and waste heat recovery integrated device and application thereof

A waste heat recovery and evaporating body technology, which is applied in general water supply conservation, chemical instruments and methods, water/sludge/sewage treatment, etc., can solve the problems of difficult collection of condensed water, loss of steam waste heat, blocking incident light, etc. Light blocking problem, guaranteed stability, easy-to-operate effect

Pending Publication Date: 2020-11-24
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an integrated device for photothermal evaporation and waste heat recovery, which uses carbonized bamboo tubes to solve the problems of steam and condensed water blocking incident light, steam waste heat lost in the environment, and difficult collection of condensed water. Long-term stability and efficient utilization of solar energy, it can eventually be used for sewage purification, seawater desalination, etc.

Method used

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  • Photo-thermal evaporation and waste heat recovery integrated device and application thereof
  • Photo-thermal evaporation and waste heat recovery integrated device and application thereof
  • Photo-thermal evaporation and waste heat recovery integrated device and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0034] Such as figure 1 , figure 2As shown, the photothermal evaporation and waste heat recovery integrated device provided by the present invention includes: photothermal evaporation body 1, evaporation chamber 2, water supply pool 3, light-transmitting plate 4, condensation heat storage chamber 5, thermoelectric power generation element 6, condensation Pool 7, feed water inlet 8, feed water outlet 9, condensed water outlet 10, sunlight 11. Wherein, the photothermal evaporating body is carbonized bamboo tube, the light absorbing body 12 and the heat insulator 13 form the photothermal evaporating body 1, the light absorbing body 12 is a carbonized bamboo node, and the heat insulating body 13 is a carbonized bamboo wall.

[0035] Such as figure 1 , figure 2 , the feed water is injected into the water supply pool 3 through the feed water inlet 8; the photothermal evaporator 1 is placed in the evaporation chamber 2; the evaporation chamber 2 surrounds the condensation heat s...

Embodiment 2

[0047] The photothermal evaporation and waste heat recovery integrated device used in this embodiment is as described in Embodiment 1, wherein the Seebeck coefficient of the thermoelectric power generation element 6 is 10 mV K -1 The height of the condensation heat storage chamber 5 is 6cm; the preparation method of the photothermal evaporator 1 is as follows:

[0048] 1. Take the bamboo joints as the incision, cut the bamboo into small bamboo tubes, and keep the bamboo joints and a certain length of bamboo wall;

[0049] 2. Remove the bamboo skin on the surface of the bamboo tube, wash it with deionized water, and then dry it at 100°C for 10 hours under the protection of nitrogen;

[0050] 3. Put the dried bamboo tube into a tube furnace, and under the protection of nitrogen, carbonize at 500°C for 20 minutes to obtain carbonized bamboo tube.

[0051] The performance test results of this embodiment are shown in Table 1.

Embodiment 3

[0053] The photothermal evaporation and waste heat recovery integrated device used in this embodiment is as described in Embodiment 1, wherein the Seebeck coefficient of the thermoelectric power generation element 6 is 7 mV K -1 The height of the condensation heat storage chamber 5 is 4cm; the preparation method of the photothermal evaporator 1 is as follows:

[0054] 1. Take the bamboo joints as the incision, cut the bamboo into small bamboo tubes, and keep the bamboo joints and a certain length of bamboo wall;

[0055] 2. Remove the bamboo skin on the surface of the bamboo tube, wash it with deionized water, and then dry it at 93°C for 7 hours under the protection of nitrogen;

[0056] 3. Put the dried bamboo tube into a tube furnace, under the protection of nitrogen, carbonize at 430°C for 17 minutes to obtain carbonized bamboo tube

[0057] The performance test results of this embodiment are shown in Table 1.

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Abstract

The invention discloses a photo-thermal evaporation and waste heat recovery integrated device based on a carbonized bamboo tube. The photo-thermal evaporation and waste heat recovery integrated devicecomprises an evaporation chamber and a condensation heat storage cavity, wherein the evaporation chamber surrounds the outside of the condensation heat storage cavity; a water supply tank is arrangedon the bottom of the evaporation chamber, a photo-thermal evaporation body is arranged in the evaporation chamber, the photo-thermal evaporation body is the carbonized bamboo tube and comprises a carbonized bamboo wall and carbonized bamboo joints, the carbonized bamboo joints are arranged on the top of the carbonized bamboo wall, the carbonized bamboo wall is partially inserted into the water supply tank, and the carbonized bamboo joints cover the upper portion of the condensation heat storage cavity; and the photo-thermal evaporation and waste heat recovery integrated device further comprises a light-transmitting plate located above the evaporation chamber and the condensation heat storage cavity. The photo-thermal evaporation and waste heat recovery integrated device solves the problems that steam and condensed water block incident light, steam waste heat is lost in the environment and condensed water is difficult to collect, and has the characteristics of being simple in structureand easy to operate; long-acting stability of a system and high-efficiency utilization rate of solar energy are realized; and the photo-thermal evaporation and waste heat recovery integrated device can be finally used for sewage purification, seawater desalination and the like.

Description

technical field [0001] The invention relates to the technical field of seawater desalination and wastewater treatment, in particular to an integrated device for photothermal evaporation and waste heat recovery and its application. Background technique [0002] With the continuous modernization process of human society, the shortage and pollution of fresh water resources are becoming more and more serious, restricting the survival and development of human beings. At present, about 40% of the world's population faces the problem of insufficient fresh water. By 2025, 3.5 billion people in the world will live in a state of water shortage, involving more than 40 countries and regions. As one of the freshwater production technologies using solar energy, solar photothermal conversion technology has a very promising application prospect. It is sustainable and green, and has attracted extensive attention in the research and industrial fields in recent years. [0003] In traditional...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/14C02F103/08
CPCC02F1/14C02F2103/08Y02A20/142Y02A20/124Y02A20/212
Inventor 薄拯龚碧瑶杨化超
Owner ZHEJIANG UNIV
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