Diagonal flow pressure exchange gas condensation separation device and method
A gas condensation and separation device technology, applied in refrigerators, compressors, refrigeration and liquefaction, etc., can solve the problem of unclean liquid discharge of gas condensate components, unrecoverable pressure of dehumidified gas, affecting the efficiency of gas wave refrigeration, etc. problem, to achieve the effect of efficient recovery, recovery of pressure energy, and improvement of utilization rate
Active Publication Date: 2019-06-28
DALIAN UNIV OF TECH
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Problems solved by technology
With the traditional gas wave expansion refrigeration technology, the pressure of the dehumidified gas after expansion can not be restored, and the axial flow self-pressurized gas wave refrigeration device and the cold source obtained in the middle of the refrigeration method have not been recovered.
In addition, there is a problem of unclean drainage of gas condensed component liquid in the channel of the double-opened oscillating tube, which seriously affects the efficiency of gas wave refrigeration
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[0026] An oblique flow pressure exchange gas condensation separation device and method, the oblique flow pressure exchange gas condensation separation device includes a high pressure intake valve 1, a heat exchanger 2, a high pressure intake nozzle 3, a double opening pressure exchange air wave machine 4, a dry gas exhaust Air chamber 5, dry gas exhaust valve 6, medium temperature return air chamber 7, low temperature exhaust chamber 8, gas-liquid separator 9, liquid discharge valve 10; there are two ports on the right end of the double-opening pressure exchange air wave machine 4, respectively The dry gas exhaust chamber 5 and the medium-temperature return air chamber 7 have two ports on the left, which are the high-pressure intake nozzle 3 and the low-temperature exhaust chamber 8; The gas nozzle 3; the low-temperature exhaust chamber 8 is connected to the medium-temperature return air chamber 7 after passing through the gas-liquid separator 9 and the shell of the heat exchan...
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The invention belongs to the technical field of gas expansion refrigeration and condensing separation and provides an oblique flow pressure exchange gas condensing separation device and method. According to the oblique flow pressure exchange gas condensing separation device and method, expansion cooling and condensation can be conducted through the pressure energy of gas, pressure recovery is conducted on dewatered dry gas in a double-opening oscillation tube channel through the double-opening oscillation tube pressure exchange characteristic, the high-pressure gas expansion cold energy in the previous circulation is recovered through a heat exchanger and used for pre-cooling the high-pressure wet gas in the current circulation, the greater intermediate temperature reduction can be obtained, and the refrigeration depth is increased. According to the double-opening oscillation tube channel, the oblique channel design with the rotary radius change is adopted, condensate droplets in the oscillation tube channel are thrown away from a cold end opening under the rotating centrifugal force of a double-opening rotary drum, the situation that the dewatered dry gas in a double-opening oscillation tube is mixed with the condensate droplets is prevented, and the refrigeration efficiency and the separation effect are further improved. The oblique flow pressure exchange gas condensing separation device and method can be widely applied to the fields of natural gas low-temperature dewatering, recovery of petroleum gas light hydrocarbon and the like.
Description
technical field [0001] The invention belongs to the technical field of gas expansion refrigeration and condensation separation, and relates to an oblique flow pressure exchange gas condensation separation device and method. Background technique [0002] The commonly used gas cryogenic separation process is to use the pressure of the pressure gas to expand and refrigerate, so that the heavy components in it are condensed into liquid, and then the gas-liquid separation is carried out. This process is widely used in the fields of natural gas dehydration and light hydrocarbon recovery. [0003] At present, there are two main types of gas-liquid separation devices. One is the supersonic gas cyclone separator. Using the structural characteristics of the Lafal tube, the pressure gas is expanded to generate low temperature first, and then the condensed liquid droplets are directly separated by the cyclone technology. Finally, Pressure recovery is achieved in the Lafal tube diffuser...
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IPC IPC(8): F25B9/06
CPCF25B9/065
Inventor 胡大鹏于洋刘培启代玉强武锦涛王泽武刘凤霞
Owner DALIAN UNIV OF TECH