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Demisting water-saving cooling tower and water-saving method thereof

A cooling tower, water-saving technology, applied in the direction of water shower coolers, heat exchanger types, direct contact heat exchangers, etc., can solve the problems of environmental pollution, water consumption, etc., to reduce environmental pollution, alleviate The effect of environmental protection pressure and reasonable structure

Pending Publication Date: 2018-11-27
江苏双良冷却系统有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Every year, the cooling tower releases a large amount of exhaust gas with high moisture content into the atmosphere. These exhaust gases are easy to form a high-humidity environment in some areas, providing conditions that promote the conversion of fine particles in the air into "haze", causing serious environmental pollution. impact; and the cooling tower consumes a lot of water resources in the cooling process of circulating water, so this water cooling method is also unacceptable in many water-scarce areas in China

Method used

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  • Demisting water-saving cooling tower and water-saving method thereof
  • Demisting water-saving cooling tower and water-saving method thereof
  • Demisting water-saving cooling tower and water-saving method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0024] see figure 1 , figure 2 and image 3 , a fog-eliminating and water-saving cooling tower, including a tower body 1 and an electrostatic defogging device 2, the electrostatic defogging device 2 is connected to a plurality of demisting units 2.1 through a power supply 2.2, and the plurality of demisting units 2.1 are arranged on the tower body 1, a water collection tank 3 is provided between the demister unit 2.1 and the tower body 1, and the water collection tank 3 is used to collect the water that flows down after the demist unit 2.1 catches the water mist. Collect, accumulated water flows downwards and collects in the sump 3. The water collection tank 3 corresponds to the demisting unit 2.1, and each demisting unit 2.1 includes a cathode 2.1.1, an anode 2.1.2 and a support 2.1.3. The cathode 2.1.1 is a discharge electrode connected to the negative electrode of the power supply 2.2; the anode 2.1.2 is a fog collecting electrode connected to the positive electrode of ...

Embodiment 2

[0030] see Figure 4 and Figure 5 The difference between embodiment 2 and embodiment 1 is that the defogging unit 2.1 is arranged horizontally, a single defogging unit 2.1 is rectangular, and multiple defogging units 2.1 are combined to form a stepped polygon, covering the top of the tower body 1 exit section. The water collection tank 3 is matched with a polygon formed by a plurality of demisting units 2.1. The water collection tank is a plurality of V-shaped grooves, and a plurality of V-shaped grooves are combined to form a stepped polygon. The V-shaped groove is used to collect the water flowing down from the anode 2.1.2 of the demisting unit 2.1, and the arrangement of the water collecting groove 3 can reduce the flow resistance when the exhaust gas passes through.

[0031] All the other technical features of embodiment 2 are the same as embodiment 1, and the water-saving method of embodiment 2 is identical with the method of embodiment 1.

Embodiment 3

[0033] see Figure 6 and Figure 7 , the difference between embodiment 3 and embodiment 1 is: a charging unit 4 is also arranged in the tower body 1, and the charging unit 4 is horizontally arranged below the outlet at the top of the tower body 1, and the charging unit 4 includes a charged cathode 4.1, a charged anode 4.2, a charged support 4.3 and a charged power source 4.4. The function of the charging unit 4 is to pre-charge the exhaust gas A in the tower. It is combined with the demisting unit 2.1 on the top outlet to form a two-stage demisting, that is, the whole demisting process is divided into a charging section (charging unit ) and defogging section (defogging unit), so that the defogging effect of the electrostatic defogging device 2 is better.

[0034] All the other technical features of embodiment 3 are the same as embodiment 1, and the water-saving method of embodiment 3 is the same as that of embodiment 1.

[0035] Embodiment 3 can also be used in the case whe...

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Abstract

The invention relates to a demisting water-saving cooling tower. The cooling tower comprises a tower body, an electrostatic demisting device and a water collecting tank. The electrostatic demisting device comprises a demisting unit and a matched power supply, the demisting unit is arranged at a top outlet of the tower body, and the water collecting tank is arranged below the demisting unit. When waste gas A in the tower and cold air B outside the tower are gathered at the top outlet of the tower body, temperature is reduced to generate mist (white smoke), the mist is captured by the electrostatic demisting device, accumulated water is formed and collected in the water collecting tank for recycling, and therefore the purpose of saving water of the cooling tower is achieved. The electrostatic demisting device is used for water saving of the cooling tower, the water-saving effect is good, and the environmental pollution is less.

Description

technical field [0001] The invention relates to a fog-eliminating and water-saving cooling tower and a water-saving method thereof, which are mainly used in the cooling process of industrial circulating water. Background technique [0002] In industries such as electric power, steel, coking and building materials, a large amount of waste heat is taken away by industrial circulating water and discharged through cooling towers. After the circulating water evaporates in the cooling tower, hot air with high moisture content is produced, and then discharged as waste gas through the outlet at the top of the cooling tower. After the exhaust gas (hot air) discharged from the cooling tower merges with the cold air outside the tower, the temperature drops, and the exhaust gas with high moisture content becomes supersaturated after being cooled, forming a large amount of white smoke (mist). Every year, the cooling tower releases a large amount of exhaust gas with high moisture content...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28C1/00F28C1/16
CPCF28C1/00F28C1/16
Inventor 薛海君刘国银
Owner 江苏双良冷却系统有限公司
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