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Boiler blow-off wastewater recovery treatment equipment

A technology for wastewater recovery and boiler blowdown, which is applied in water/sewage treatment, heating water/sewage treatment, water/sewage multi-stage treatment, etc. It can solve the problems of heat exchanger body damage and steam operating pressure rise.

Pending Publication Date: 2022-01-28
青岛海湾化工设计研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, the flash volume of the boiler blowdown water is much greater than the design steam heat transfer capacity of the steam-water heat exchanger. Due to the excessive flash steam, the operating pressure of the steam at the steam inlet of the heat exchanger rises, causing the steam pressure to exceed the design value of the heat exchanger. Pressure, damage to the heat exchanger body

Method used

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  • Boiler blow-off wastewater recovery treatment equipment
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  • Boiler blow-off wastewater recovery treatment equipment

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Experimental program
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Effect test

Embodiment 1

[0029] The present invention provides such as Figure 1-5The shown boiler blowdown waste water recycling and treatment equipment includes a boiler discharge system 1 and a regular blowdown expansion vessel 2. The boiler discharge system 1 is provided with a continuous blowdown blowdown vessel, and the high-temperature and high-pressure boiler blowdown water is first discharged into the continuous blowdown blowdown vessel. , and then discharged into the regular sewage expansion vessel 2 by the continuous blowdown expansion vessel, and the blowdown water flashes in the regular blowdown expansion vessel 2 to generate steam. The scheme of conventional recovery is to exchange heat with water in the newly-established steam-water heat exchanger with the steam generated by the expansion vessel for regular sewage discharge, and install a heat exchange filter device on the pipeline from the boiler discharge system 1 to the expansion vessel 2 for regular sewage discharge , the heat excha...

Embodiment 2

[0036] Such as Figure 1-3 The shown boiler blowdown waste water recycling and treatment equipment includes a boiler discharge system 1 and a regular blowdown expansion vessel 2. The boiler discharge system 1 is provided with a continuous blowdown blowdown vessel, and the high-temperature and high-pressure boiler blowdown water is first discharged into the continuous blowdown blowdown vessel. , and then discharged into the regular sewage expansion vessel 2 by the continuous blowdown expansion vessel, and the blowdown water flashes in the regular blowdown expansion vessel 2 to generate steam. The scheme of conventional recovery is to exchange heat with water in the newly-established steam-water heat exchanger with the steam generated by the expansion vessel for regular sewage discharge, and install a heat exchange filter device on the pipeline from the boiler discharge system 1 to the expansion vessel 2 for regular sewage discharge , the heat exchange filtering device includes ...

Embodiment 3

[0041] Such as figure 1 , 2 A boiler blowdown waste water recovery treatment equipment shown in and 4, comprising a boiler discharge system 1 and a regular blowdown expansion vessel 2, the boiler discharge system 1 is provided with a continuous blowdown blowdown vessel, and the high temperature and high pressure boiler blowdown water is first discharged to the continuous blowdown blowdown expansion vessel In the device, then the continuous sewage expansion vessel is discharged into the regular sewage expansion vessel 2, and the sewage is flashed in the regular sewage expansion vessel 2 to generate steam. The scheme of conventional recovery is to exchange heat with water in the newly-established steam-water heat exchanger with the steam generated by the expansion vessel for regular sewage discharge, and install a heat exchange filter device on the pipeline from the boiler discharge system 1 to the expansion vessel 2 for regular sewage discharge , the heat exchange filtering de...

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Abstract

The invention discloses boiler blow-off wastewater recovery treatment equipment, and relates to the technical field of boiler wastewater treatment. The boiler blow-off wastewater recovery treatment equipment comprises a boiler discharge system and a periodic blow-off expanding device, wherein a continuous blow-off expanding device is arranged in the boiler discharge system, high-temperature and high-pressure boiler blow-off water is firstly discharged into the continuous blow-off expanding device, and then is discharged into the periodic blow-off expanding device through the continuous blow-off expanding device, and the blow-off water is subjected to flash evaporation in the periodic blow-off expanding device to generate steam. According to the conventional recovery scheme, steam generated by a periodic blow-off expanding device exchanges heat with water in a newly-arranged steam-water heat exchanger. According to the invention, a heat exchange filtering device is arranged on a pipeline from the blow-off water flow of a continuous blow-off expanding device to a periodic blow-off expanding device, so that when a boiler continuous blow-off system goes wrong or a boiler has a safety accident, the heat exchange filtering device is in a running stopping state, and the damage to the steam heat exchanger body caused by excessive flash steam quantity of the periodic blow-off expanding device is avoided.

Description

technical field [0001] The invention relates to the technical field of boiler waste water treatment, in particular to a recovery and treatment equipment for boiler blowdown waste water. Background technique [0002] The boiler is a kind of energy conversion equipment. The energy input to the boiler includes chemical energy and electric energy in the fuel, and the boiler outputs steam, high-temperature water or organic heat carrier with a certain amount of heat energy. The original meaning of the pot refers to the water container heated on the fire, and the furnace refers to the place where fuel is burned. The boiler includes two parts: the pot and the furnace. The hot water or steam generated in the boiler can directly provide the required heat energy for industrial production and people's life, and can also be converted into mechanical energy through a steam power device, or converted into electrical energy through a generator. [0003] The recovery and treatment of boiler...

Claims

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Application Information

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IPC IPC(8): C02F9/10F22B31/08F22B37/54
CPCC02F9/00F22B37/54F22B31/08C02F1/00C02F1/001C02F1/06C02F2303/14C02F2303/16
Inventor 王真麒朱瑞学栾鹏飞周红敏
Owner 青岛海湾化工设计研究院有限公司
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