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Gas-liquid separating drum for flue gas dewatering, dewatering device and system

A gas-liquid separation and dehydration device technology, applied in separation methods, dispersed particle separation, chemical instruments and methods, etc., can solve the problems of secondary entrainment, inability to achieve gas-liquid separation, etc., to achieve easy maintenance and improve equipment operation stability , the effect of improving efficiency

Inactive Publication Date: 2017-04-26
SHANDONG SHENHUA SHANDA ENERGY ENVIRONMENTAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the current problem that the gas-liquid separation cannot be realized when recovering the moisture in the flue gas, and to provide a gas-liquid separation cylinder, which can isolate the condensed water from the flue gas, thereby avoiding the problem of secondary entrainment

Method used

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  • Gas-liquid separating drum for flue gas dewatering, dewatering device and system
  • Gas-liquid separating drum for flue gas dewatering, dewatering device and system
  • Gas-liquid separating drum for flue gas dewatering, dewatering device and system

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Experimental program
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Effect test

Embodiment 1

[0053] figure 1 Among them, the gas-liquid separation cylinder 3 includes a cylinder body, and a plurality of slits 2 are vertically (or inclined) on the cylinder body, and the width of the slits 2 is 2-10mm (preferably 6mm), and the spacing is the width 5-20 times (preferably 10 times) of that.

[0054] The slit wherein also can be changed into grid form, if adopt grid then grid height is 5-20cm (preferably 12cm), and gap is grid height 0.5-20 times (preferably 5 times).

[0055] Or, the slit is changed into a hole, and the shape of the hole can be a round hole, a square hole, an elliptical hole, a hexagonal hole, etc., no matter which type of hole, its radial maximum size is 2-10mm (preferably 6mm), the hole The pitch is 5-20 times (preferably 10 times) the largest dimension.

[0056] Through the design of the above form, after the moisture in the flue gas is thrown to the inner wall of the cylinder, it can be transferred from the inner wall of the cylinder to the outer wa...

Embodiment 2

[0058] figure 1 , figure 2 In , a schematic diagram of the structure of a dehydration device is given, which is installed in the flue 1. Wherein, the lower part of the gas-liquid separation cylinder 3 is a flue gas guiding device, and the flue gas guiding device is composed of a flue gas channel 8 and blades therein. The blade can adopt the existing multi-blade form (no longer show the drawings), as far as the present invention is concerned, a structural schematic diagram of the helical fin 6 that is a single blade is provided. The helical tooth piece 6 of the flue gas guide device is a tooth piece that spirals up around the central axis 7. The total height of the helical tooth piece 6 is 200-600mm (preferably 450mm), and it rotates 360-540° (preferably 450mm) around the central axis 7. °), the diameter of the central axis 7 accounts for 10% to 30% (preferably 20%) of the outer diameter of the helical tooth piece 6. The flue gas is guided along the helical tooth piece 6, a...

Embodiment 3

[0061] Figure 1-3 Among them, the entire gas-liquid separation system also includes a liquid collection tank 4 and a water diversion port 5. The liquid collection tank 4 can be installed on the lower periphery of the gas-liquid separation cylinder 3, and can also be installed on the lower periphery of the flue gas channel 8, so that the The liquid flowing out along the gas-liquid separation cylinder 3 is collected, and at least one water introduction port 5 is provided at the lowest end of the liquid collection tank 4 to lead the collected liquid out of the flue 1 for subsequent further processing.

[0062] Similarly, the above gas-liquid separation system can not only separate gas-liquid, but also can be used in gas-oil separation. Due to the density difference between gas and oil, the oil has a high density and high inertia, and is captured by the separation barrel or grid sheet; while the gas flow Because of the low density and low inertia, the spiral rising process is alw...

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Abstract

The invention discloses a gas-liquid separating drum for flue gas dewatering, a dewatering device and a system. A plurality of openings are formed in the wall of the gas-liquid separating drum, liquid drops are thrown to the wall, then transferred to the outer wall of a drum body from the inner wall of the drum body through the openings and separated from gas in flue gas, a flue gas guide device is arranged on the lower portion of the gas-liquid separating drum, the structure of the flue gas guide device is simplified by design of spiral toothed sheets, and running stability of the device is improved. The collected liquid drops are drained by a diversion port in a collecting tank, and liquid is recycled.

Description

technical field [0001] The invention relates to the field of flue gas dehydration, in particular to a gas-liquid separation cylinder for flue gas dehydration, and a dehydration device and system using the gas-liquid separation cylinder. Background technique [0002] Coal-fired power plants consume a lot of water resources. For the northern regions where water resources are relatively scarce, especially the western regions of my country, coal-fired power plants need to make full use of water resources and continuously tap the potential of energy and water conservation. Existing coal-fired power plants mostly use limestone-gypsum wet flue gas desulfurization technology. This technology has high desulfurization efficiency and stable operation, and is widely used in domestic flue gas treatment. However, this method consumes a lot of water, and after desulfurization The flue gas will also carry a large amount of water droplets, causing rainfall around the chimney, which will cau...

Claims

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Application Information

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IPC IPC(8): B01D45/16
CPCB01D45/16
Inventor 李宗强李洪梅王翔吴华
Owner SHANDONG SHENHUA SHANDA ENERGY ENVIRONMENTAL
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