Double-cone type gas collecting and distributing hood for gas-liquid separation and method for dispersing gas

A gas-liquid separation and gas collecting hood technology, applied in separation methods, distillation separation, dispersed particle separation, etc., can solve the problems of low equipment utilization efficiency, low retention rate, low equipment separation efficiency, etc., and achieve the increase of liquid residence time. , The effect of increasing equipment utilization efficiency and reducing the effect of liquid foam entrainment

Active Publication Date: 2020-04-17
YIXING HENGXING FINE CHEM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of these processes use operating equipment in which the gas is the continuous phase and the liquid is the dispersed phase. Generally, the retention rate of the liquid in the equipment is low, and the utilization efficiency of the equipment is not high. This can still meet the requirements for the separation process with a small liquid flow rate.
However, for some special distillation or absorption processes, such as extractive distillation, reactive distillation and reactive absorption, due to the large liquid-gas ratio required in the operation, the low separation efficiency of the equipment caused by the low retention rate has become a prominent problem.

Method used

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  • Double-cone type gas collecting and distributing hood for gas-liquid separation and method for dispersing gas
  • Double-cone type gas collecting and distributing hood for gas-liquid separation and method for dispersing gas
  • Double-cone type gas collecting and distributing hood for gas-liquid separation and method for dispersing gas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] figure 1 Represents a structural diagram of a double-cone gas-collecting distribution hood. Among them, the bottom angle of the conical hood is 63.5°, the outer diameter of the bottom end is 60mm, the height of the upper conical distribution hood is 60mm; the height of the lower conical gas collection hood is 40mm; The size of the annular blind plate at the bottom of the conical gas collecting hood is the same, and the width of the ring is 10mm; There are 164 holes in total, arranged in an equilateral triangle ( figure 2 , hole spacing 6mm), the sieve holes on the annular sieve plate are arranged at equal intervals along two concentric circles, and the diameters of the concentric circles are 45mm, 55mm ( image 3 , 22 and 28 equally spaced circular holes).

[0048] There are a total of 214 circular holes on the conical sieve plate and circular holes on the annular sieve plate, and the ratio of the area of ​​all the circular holes to the area of ​​the openings on the...

Embodiment 2

[0050] figure 1 Represents a structural diagram of a double-cone gas-collecting distribution hood. Among them, the bottom angle of the conical hood is 63.5°, the outer diameter of the bottom end is 80mm, the height of the upper conical distribution hood is 80mm; the height of the lower conical gas collection hood is 54mm; The size of the annular blind plate at the bottom of the conical gas collecting hood is the same, and the width of the ring is 13mm; There are a total of 164 circular holes arranged in an equilateral triangle ( figure 2 , hole spacing 8mm), the sieve holes on the annular sieve plate are arranged at equal intervals along two concentric circles, and the diameters of the concentric circles are 61mm and 73mm ( image 3 , 22 and 28 equally spaced circular holes).

[0051] There are a total of 214 circular holes on the conical sieve plate and circular holes on the annular sieve plate, and the ratio of the area of ​​all the circular holes to the area of ​​the op...

Embodiment 3

[0053] figure 1 Represents a structural diagram of a double-cone gas-collecting distribution hood. Among them, the bottom angle of the conical hood is 63.5°, the outer diameter of the bottom end is 100mm, the height of the upper conical distribution hood is 100mm; the height of the lower conical gas collection hood is 68mm; The size of the annular blind plate at the bottom of the conical gas collecting hood is the same, and the width of the ring is 16mm; There are a total of 164 circular holes arranged in an equilateral triangle ( figure 2 , hole spacing 10mm), the sieve holes on the annular sieve plate are arranged at equal intervals along two concentric circles, and the diameters of the concentric circles are 76mm and 92mm ( image 3 , 22 and 28 equally spaced circular holes).

[0054] There are a total of 214 round holes on the conical sieve plate and round holes on the annular sieve plate, and the ratio of the area of ​​all the round holes to the area of ​​the openings...

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Abstract

The invention discloses a double-cone type gas collecting and distributing hood for gas-liquid separation and a method for dispersing gas. The double-cone type gas collecting and distributing hood iscomposed of an upper-layer conical distributing hood body and a lower-layer conical gas collecting hood body which share the same central axis. The upper-layer conical distributing hood body consistsof a conical sieve plate with a closed top end and a bottom annular sieve plate; the lower-layer conical gas collecting hood body consists of a conical surface baffle plate with an open top end, a bottom annular blind plate and an inner-layer two-stage defoaming screen plate; the double-cone type gas collection and distributing hood is fixed at the upper part of the distribution plate and is communicated with the open pore of the distribution plate; gas below the distribution plate is collected, liquid foam is removed, and then the gas is dispersed outwards on the conical surface of the distribution cover. The double-cone type gas collecting and distributing hood has the advantages of uniform and stable gas dispersion, wide operation elasticity and the like, is suitable for the fields of gas-liquid mass and heat transfer process with liquid as a continuous phase and large liquid-gas ratio, gas-liquid phase reaction and the like, and is particularly suitable for the application of an easy-to-foam material system separation process.

Description

technical field [0001] The invention relates to a double-cone gas-collecting distribution hood and a method for dispersing gas. It is suitable for the fields of gas-liquid mass transfer heat transfer process and gas-liquid phase reaction where liquid is the continuous phase and liquid gas is relatively large. The foaming system separation process provides a gas dispersion method with greater operational flexibility and high efficiency. Background technique [0002] There are many mass transfer and separation processes involving gas-liquid two-phase flow in chemical production, such as ordinary distillation and absorption processes that are mainly characterized by mass transfer, and gas humidification and dehumidification processes that require simultaneous consideration of heat and mass transfer. Most of these processes use operating equipment in which the gas is the continuous phase and the liquid is the dispersed phase. Generally, the retention rate of the liquid in the eq...

Claims

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Application Information

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IPC IPC(8): B01D53/18B01D3/32B01J19/00
CPCB01D3/324B01D53/18B01J19/00
Inventor王成习
OwnerYIXING HENGXING FINE CHEM