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  • How does a gas liquid seperator work?
  • Editer:Hangzhou Shen Bang purification equipment Co., Ltd. Date:2017-02-13 11:27 Click
How does a gas liquid separator work?
 
Saturated gas During cooling or pressurization, a portion of the condensable gas component forms small droplets that flow with the gas.
Gas-liquid separator is the role of dealing with a small amount of condensate gas, to achieve condensate recovery or gas purification.
The structure is generally a pressure vessel, internal related air intake components, droplet collection components.
General gas from the upper exit, the liquid phase from the lower collection.
The vapor-liquid separation tank is an internal member such as a wire mesh defoaming or a baffle plate for further condensing and discharging the liquid entrained in the gas to remove the liquid.
The basic principle is the use of different gas-liquid specific gravity, in a sudden expansion of the container, the flow rate is reduced, the main fluid in the process of turning, the gas droplets in the fine sink and gas separation, or the use of cyclone, Of the droplets are imported high-speed air flow thrown on the wall, the kinetic energy lost after collision with the steering gas separation.
 
Separation of the structure and principle of complementarity, separator is not only separated gas-liquid separation is also gas-solid, such as cyclone is the use of centrifugal force separation of gas solids.
  
Gas-liquid separator, according to the different types of separator, a vortex separation, the separation plate separation, screen demister,
Vortex separation is mainly based on the density of gas and liquid, do centrifugal movement, the liquid encountered wall condensation.
  
The basic principle is the use of sedimentation, and instantly expand the pipe radius, resulting in pressure drop, temperature and other changes, to achieve the purpose of separation.
The use of gas-liquid separator generally followed by the system, because the gas cooling and decompression will appear after partial condensation and then the system equipment processing requires pure gas or liquid phase, so the main reaction after the installation of a gas-liquid separator still isolated gas and liquid phase After the system to create conditions. . .
The common gas-liquid separator in the factory uses the principle of flashing. The flashing is the medium entering a large container, instantaneous decompression gasification and gas-liquid separation. The outlet gas contains saturated water, and free water and specific gravity Of the droplets will be separated due to the role of gravity, the other generally with a fog trap separator network, through the fog network can be part of the gas droplets removed.
Gas-liquid separator is nothing more than to each other mixed gas phase liquid phase polymerization into shares, the droplets collide coalescence, remove the droplets of gas rise, so as to achieve the purpose of separation.
The principle is the use of different gas-liquid specific gravity, in a sudden expansion of the container, the flow rate is reduced, the main fluid in the process of turning, the gas droplets in the fine sinking and gas separation, or the use of cyclone, Droplets are imported high-speed air flow thrown on the wall, the kinetic energy lost after collision with the steering gas separation. Calculated a gas-liquid separator is a simple pressure vessel, which has a corresponding demister removed a droplet.
The basic principle of gas-liquid separator is the use of inertial collision, the gas phase entrained droplets or solid particles trapped down, and then purify the gas phase or get liquid and solid phase. The physical process, the common form of a wire mesh demister, swirl plate defogger, folding defogger and so on.
Simple gas-liquid separation does not involve the relationship between temperature and pressure, but on the high-speed air (relative concept) entrained liquid interception, absorption and so on practice separation, swirl baffles in the diversion at the same time, Provided by virtue, as if the dust in the air have to rely on objects to stay the same. While the separation of the different design, but also to optimize the separation performance, such as changing temperature, pressure, flow rate, etc.
Gas-liquid separation is the use of the conditions in the development of gas-liquid density caused by the separation.
I think the better way is to use different components of its different temperature or pressure in the boiling point of the difference in melting, so that the occurrence of phase change, and then through the physical properties of different phases of the separation
Saturated gas During cooling or pressurization, a portion of the condensable gas component forms small droplets that flow with the gas.
Gas-liquid separator is the role of dealing with a small amount of condensate gas, to achieve condensate recovery or gas purification.
The structure is generally a pressure vessel, internal related air intake components, droplet collection components.
General gas from the upper exit, the liquid phase from the lower collection.
Separation of chemical plants in the separation of gas and wire are mostly filter, this method is mechanical separation, the principle is that gas molecules can be small through the screen gap, while the liquid molecules,
There is a spiral separation, gas entrainment from the bottom of the separator spiral, the liquid was hit "grow up" eventually rely on gravity, and sometimes rely on the downcomer leads to the bottom of the separator
Gas-liquid separator, the outlet generally in the upper, because the proportion is low, the internal air is pulled out, or in the outlet side with air pump
And the liquid is rotated and condensed again to be discharged from the lower part
 
 
 
Use of gas and liquid density difference. . Thereby separating the gas from the liquid
1, gas-liquid separator in various forms.
2, the main principle is: according to the proportion of gas and liquid in a larger space with the flow rate changes in the main body of the steering process, the gas droplets in the fine droplets and gas separation.
3, can also use the cyclone separator, gas droplets in the fine is imported high-speed air flow thrown on the wall, the kinetic energy lost after collision with the steering gas separation.
4, the current evaporation before the flash can also be gas-liquid separation.
The separation structure of gas-liquid separator is very large, and the separation method has:
1, gravity sedimentation;
2, flow separation;
3, centrifugal force separation;
4, screen separation;
5, ultrafiltration separation;
6, packing separation.
But there are only two kinds of principles of separation:
First, the use of different components of mass (weight) to separate the mixture (such as separation methods 1, 2, 3, 6). The density of the gas and the liquid are different, and the mass of the same volume is smaller than that of the liquid.
Two, the use of dispersed particles of different sizes to separate the mixture (such as separation method 4, 5). The molecular aggregation state of the liquid is different from that of the gas, and the gas molecules are far away, and the liquid molecules are much closer, so the gas particles are smaller than the liquid particles
The basic principle is the use of liquid in a different proportion, the sudden expansion of the container, the flow rate decreased, the process of turning in the mainstream body, fine droplet subsidence and separation of gas and gas phase, or the use of cyclone separator, droplet fine imported high-speed airflow thrown to the wall on the gas phase, after the collision lost kinetic energy of gas separation and steering. Generally side feeding, the bottom of the liquid discharge, the bottom of the gas discharge, play a role in separation, which can be filled.
The basic principle of the gas-liquid separator is the use of gas and liquid and solid with different proportion of saturated gas into the separator liquid and solid instant weight loss and gas separation, and the use of the gas to form vortex velocity than the major liquid and solid deposition to the bottom of the separator, the outflow of gas from the separator after the separation of the upper baffle plate and belt separator; wire mesh demister type is in order to better separation, after the process of gas requires a higher selection.