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CN-116328471-A - Separation equipment for gas-liquid phase transition

CN116328471ACN 116328471 ACN116328471 ACN 116328471ACN-116328471-A

Abstract

The invention relates to the technical field of gas-liquid phase transition separation, and provides separation equipment for gas-liquid phase transition. The device comprises a frame, a vortex concentrating mechanism, a liquefying mechanism, a solid-liquid separation mechanism and a liquid-liquid separation mechanism, wherein the vortex concentrating mechanism is arranged on the frame, and the vortex concentrating mechanism, the liquefying mechanism, the solid-liquid separation mechanism and the liquid-liquid separation mechanism are sequentially connected; the vortex concentrating mechanism comprises a vortex coil pipe, the vortex coil pipe is provided with a plurality of through channels along the spiral direction, and the through channels are separated by filter plates; the through channel comprises a main channel, an inner centrifugal channel, an outer centrifugal channel, an upper gravity channel and a lower gravity channel, wherein the outer centrifugal channel and the inner centrifugal channel are respectively positioned at two sides of the main channel. Solves the problem that the dichloromethane mixed gas is not easy to separate in the related technology.

Inventors

  • YUAN HAICHAO
  • XU FENG
  • WANG LONG
  • LI HAIJUN
  • LI DONGCHAO
  • LI NING
  • ZHONG GUOLIANG

Assignees

  • HEBEI GELLEC NEW ENERGY MAT SCIENCE & TECHNOLOGY CO LTD

Dates

Publication Date
20230627
Application Date
20230411
Priority Date
20230411

Claims (10)

  1. 1. The separation equipment for gas-liquid phase transition is characterized by comprising a frame (1), a vortex concentration mechanism (43), a liquefaction mechanism (44), a solid-liquid separation mechanism (45) and a liquid-liquid separation mechanism (46), wherein the vortex concentration mechanism (43) is arranged on the frame (1), and the vortex concentration mechanism (43), the liquefaction mechanism (44), the solid-liquid separation mechanism (45) and the liquid-liquid separation mechanism (46) are sequentially connected; the vortex concentrating mechanism (43) comprises a vortex coil pipe (2), the vortex coil pipe (2) is provided with a plurality of through channels along the spiral direction, and the through channels are separated by a filter plate (3); the through channel comprises a main channel (4), an inner centrifugal channel (5), an outer centrifugal channel (6), an upper gravity channel (7) and a lower gravity channel (8), wherein the outer centrifugal channel (6) and the inner centrifugal channel (5) are respectively positioned on two sides of the main channel (4), the upper gravity channel (7) is positioned on the upper side of the vertical direction of the inner centrifugal channel (5), the lower gravity channel (8) is positioned on the lower side of the vertical direction of the outer centrifugal channel (6), and the outlet of the through channel is communicated with the liquefying mechanism.
  2. 2. A separation apparatus for gas-liquid phase transition according to claim 1, characterized in that the vortex concentrating mechanism (43) further comprises a circulation fan (9) and a make-up fan (10), the make-up fan (10) and the circulation fan (9) being provided on the vortex coil (2) and in communication with the main channel (4).
  3. 3. A separation apparatus for gas-liquid phase transition according to claim 1, characterized in that the liquefaction mechanism (44) comprises a liquefaction tank (11), an air intake pipe (12), a honeycomb degassing tank (13) and a waterproof and breathable membrane (14); the utility model discloses a honeycomb ventilation film, including liquefaction box (11), intake pipe (12) with the exit linkage of through-channel, liquefaction box (11) have liquefaction liquid export (15), honeycomb ventilation box (13) are located in liquefaction box (11), intake pipe (12) link up and locate on liquefaction box (11), the import intercommunication of intake pipe (12) the export of through-channel, the export of intake pipe (12) with honeycomb ventilation box (13) intercommunication, waterproof ventilated membrane (14) are located in honeycomb ventilation box (13).
  4. 4. A separation apparatus for gas-liquid phase transition according to claim 3, characterized in that the upper gravity channel (7) has a low concentration gas separation port (16); the liquefying box body (11) is provided with a liquefied gas outlet (17); a low-concentration converging channel (18) is connected between the low-concentration gas separating port (16) and the liquefied gas outlet (17), and the low-concentration converging channel (18) is provided with a gas overflow port (19).
  5. 5. A separation device for gas-liquid phase transition according to claim 1, characterized in that the solid-liquid separation mechanism (45) comprises a separation tank body (20) and a filter element (21), the separation tank body (20) is provided with a separation inlet (22) and a separation outlet (23), the filter element (21) is arranged in the separation tank body (20), the separation inlet (22) is connected with the liquefied liquid outlet (15), and the separation outlet (23) is connected with the liquid-liquid separation mechanism (46).
  6. 6. A separation apparatus for gas-liquid phase transition according to claim 1, characterized by further comprising a heat exchange mechanism (47), the heat exchange mechanism (47) comprising a condenser (24), an evaporator (25) and a compressor (26), the condenser (24) and the evaporator (25) being connected simultaneously with the compressor (26), the condenser (24) being connected with the liquid-liquid separation mechanism, the evaporator (25) being connected with the liquefaction tank (11).
  7. 7. The separation device for gas-liquid phase transition according to claim 5, wherein the liquid-liquid separation mechanism (46) comprises a liquid separation box body (27), a liquid taking inner pipe (28) and a liquid taking outer pipe (29), the liquid separation box body (27) is internally divided into a mixed liquid area (30) and an extraction liquid area (31), the liquid taking inner pipe (28) is vertically arranged in the liquid separation box body (27), the liquid taking inner pipe (28) is communicated with the extraction liquid area (31), the liquid taking outer pipe (29) is sleeved outside the liquid taking inner pipe (28), a through hole (32) is formed in the liquid taking outer pipe (29), the through hole (32) is communicated with the liquid taking inner pipe (28), the liquid separation box body (27) is provided with a liquid inlet (33), a water outlet (34) and a liquid outlet (35), the liquid inlet (33) is positioned in the mixed liquid area (30) and is connected with the separation outlet (23), the liquid outlet (34) is positioned at the height of the liquid outlet (35) at the liquid outlet (34).
  8. 8. The separation apparatus for gas-liquid phase transition according to claim 6, further comprising And the mounting hole (36) is positioned on the liquid separation box body (27) and is used for connecting the condenser (24).
  9. 9. The separation apparatus for gas-liquid phase transition according to claim 6, further comprising The plurality of the baffle plates (37) are arranged on the inner side of the liquid separation box body (27) in a staggered mode to form a serpentine passage.
  10. 10. The separation apparatus for gas-liquid phase transition according to claim 6, further comprising And the pressure balance port (38), and the pressure balance port (38) is arranged on the liquid separation box body (27).

Description

Separation equipment for gas-liquid phase transition Technical Field The invention relates to the technical field of gas-liquid phase transition separation, in particular to separation equipment for gas-liquid phase transition. Background Dichloromethane, an organic compound of the formula CH2Cl2, is a colorless transparent liquid with an ether-like pungent odor. Slightly soluble in water, soluble in ethanol and diethyl ether, is a nonflammable low boiling point solvent under normal use conditions, and when the vapor becomes high concentration in high temperature air, a mixed gas with weak combustion is generated, so that the mixed gas is often used for replacing flammable petroleum ether, diethyl ether and the like, methylene dichloride is generated in a plurality of industrial production lines, and the recovery of methylene dichloride gas becomes very important. The existing recovery technology is that the mixed gas of dichloromethane and air is discharged outside a workshop through a pipeline, the concentration of the dichloromethane in the mixed gas is improved through carbon adsorption and desorption, the high-concentration dichloromethane mixed gas passes through a condenser, the dichloromethane gas is condensed into liquid, and then the liquid is stored, filtered and recycled. Firstly, because the equipment is huge, the equipment cost is higher; secondly, the equipment has high running cost, a large amount of industrial heat and cold are consumed, the heat is used for desorbing the carbon, and the temperature of the methylene dichloride gas after the desorption is higher; the cooling is to cool down the dichloromethane, so that the gaseous dichloromethane can be changed into liquid state after cooling down; third, the service life of the carbon canister is only two years, and a high cost is required for replacing the carbon once. In a word, the equipment investment cost of recycling the methylene dichloride gas is high, the energy consumption is high, the fractionation is difficult, and the development of enterprises is restricted. Therefore, a device with low cost and low energy consumption is needed to finish the fractional separation and recovery of the methylene dichloride gas. Disclosure of Invention The invention provides separation equipment for gas-liquid phase conversion, which solves the problem that dichloromethane mixed gas is not easy to separate in a grading manner in the related technology. The technical scheme of the invention is as follows: the separation equipment for gas-liquid phase transformation comprises a frame, a vortex concentration mechanism, a liquefaction mechanism, a solid-liquid separation mechanism and a liquid-liquid separation mechanism, wherein the vortex concentration mechanism is arranged on the frame, and the vortex concentration mechanism, the liquefaction mechanism, the solid-liquid separation mechanism and the liquid-liquid separation mechanism are sequentially connected; the vortex concentrating mechanism comprises a vortex coil pipe, wherein the vortex coil pipe is provided with a plurality of through channels along the spiral direction, and the through channels are separated by filter plates; the through channel comprises a main channel, an inner centrifugal channel, an outer centrifugal channel, an upper gravity channel and a lower gravity channel, wherein the upper gravity channel is positioned at the upper side of the vertical direction of the inner centrifugal channel, the lower gravity channel is positioned at the lower side of the vertical direction of the outer centrifugal channel, and an outlet of the through channel is communicated with the liquefying mechanism. As a further technical proposal The vortex concentrating mechanism further comprises a circulating fan and a supplementary fan, wherein the supplementary fan and the circulating fan are arranged on the vortex coil and are communicated with the main channel. As a further technical scheme, the method comprises the steps of, the liquefying mechanism comprises a liquefying box body, an air inlet pipe, a honeycomb air dispersing box and a waterproof breathable film; the air inlet pipe is connected with the outlet of the through passage, the liquefaction box body is provided with a liquefied liquid outlet, the honeycomb air dispersing box is arranged in the liquefaction box body, the air inlet pipe is communicated with the liquefaction box body, the inlet of the air inlet pipe is communicated with the outlet of the through passage, the outlet of the air inlet pipe is communicated with the honeycomb air dispersing box, and the waterproof air permeable membrane is arranged in the honeycomb air dispersing box. As a further technical scheme, the method comprises the steps of, the upper gravity channel is provided with a low-concentration gas separation port; the liquefying box body is provided with a liquefied gas outlet; the low-concentration gas separation port and the liquefied gas outlet are conn