CN210004678U - Environment-friendly rectifying device for preparing oxygen - Google Patents

Environment-friendly rectifying device for preparing oxygen Download PDF

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Publication number
CN210004678U
CN210004678U CN201920663724.2U CN201920663724U CN210004678U CN 210004678 U CN210004678 U CN 210004678U CN 201920663724 U CN201920663724 U CN 201920663724U CN 210004678 U CN210004678 U CN 210004678U
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CN
China
Prior art keywords
tower
bubble cap
box body
plate structure
packing box
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Active
Application number
CN201920663724.2U
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Chinese (zh)
Inventor
李朋
李如楠
胡忠伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuxi Lianzhong Gas Co Ltd
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Wuxi Lianzhong Gas Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
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Priority to CN201920663724.2U priority Critical patent/CN210004678U/en
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Publication of CN210004678U publication Critical patent/CN210004678U/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25JLIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04763Start-up or control of the process; Details of the apparatus used
    • F25J3/04866Construction and layout of air fractionation equipments, e.g. valves, machines
    • F25J3/04896Details of columns, e.g. internals, inlet/outlet devices
    • F25J3/04915Combinations of different material exchange elements, e.g. within different columns
    • F25J3/04921Combinations of different material exchange elements, e.g. within different columns within the same column
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25JLIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04763Start-up or control of the process; Details of the apparatus used
    • F25J3/04866Construction and layout of air fractionation equipments, e.g. valves, machines
    • F25J3/04896Details of columns, e.g. internals, inlet/outlet devices
    • F25J3/04903Plates or trays
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25JLIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04763Start-up or control of the process; Details of the apparatus used
    • F25J3/04866Construction and layout of air fractionation equipments, e.g. valves, machines
    • F25J3/04896Details of columns, e.g. internals, inlet/outlet devices
    • F25J3/04909Structured packings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25JLIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04763Start-up or control of the process; Details of the apparatus used
    • F25J3/04866Construction and layout of air fractionation equipments, e.g. valves, machines
    • F25J3/04896Details of columns, e.g. internals, inlet/outlet devices
    • F25J3/04927Liquid or gas distribution devices

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Separation By Low-Temperature Treatments (AREA)

Abstract

The utility model discloses an environment-friendly rectifier unit for preparing oxygen, including the rectifying column body including lower tower and upper tower in the rectifying column body, be provided with the condensation evaporator down between tower and the upper tower, tower lower extreme position is provided with air intlet down, the tower top is provided with the liquid nitrogen collecting vat down, the upper tower bottom is provided with the liquid oxygen collecting vat, upper tower top end position is provided with the nitrogen outlet, be provided with column plate structure and filler structure along vertical direction alternate in upper tower and the lower tower, the utility model discloses a backflow liquid is full and the air contact heat transfer of waiting to separate in column plate structure and the filler structure to oxygen and nitrogen gas in the air can be abundant, quick fractionation come, guaranteed oxygen and nitrogen gas separation's efficiency and effect.

Description

Environment-friendly rectifying device for preparing oxygen
Technical Field
The utility model relates to an kind rectifying column technical field especially relates to kind environment-friendly rectifier unit that is used for preparing oxygen.
Background
The existing rectifying equipment is divided into a plate rectifying tower and a filling rectifying tower, but when a sieve plate in the plate rectifying tower enables gas air to exchange heat with reflux liquid, the contact time of the air and the reflux liquid is short, and the nitrogen-oxygen separation purity is not high, the filling rectifying tower uses a filler as a matrix unit for contacting the air and the reflux liquid, and the flow velocity of the air in the filler is too low, so that the rectifying efficiency of the rectifying tower is not high, and rectifying devices with high rectifying efficiency and good effect are needed.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, the utility model provides environment-friendly rectifying devices for preparing oxygen, which can make air and reflux liquid in the packing structure and the tower plate structure fully contact with the reflux liquid to transfer heat and fractionate and simultaneously improve the fractionation efficiency by arranging the packing structure and the tower plate structure alternately.
Technical scheme, in order to realize the purpose, the utility model discloses an environment-friendly rectifying device for preparing oxygen, including the rectifying column body, including column plate structure and filler structure in the rectifying column body, and column plate structure and filler structure alternate along vertical direction setting in the rectifying column body, make the rectifying column body when fractionating the air like this, make the air fully fractionate after contacting with the reflux liquid to the fractional distillation purity of oxygen and nitrogen gas is high, and the efficiency of fractionating is fast.
, the filler structure comprises a filler box body and filler, wherein a cavity in the filler box body is arranged in an inverted round table shape, the filler is filled in the cavity in the filler box body, the filler is arranged in a spherical particle shape, a plurality of sieve holes which are communicated with the cavity in the filler box body and the outside are respectively arranged on the upper end surface and the lower end surface of the filler box body, the outer diameter of the filler box body is matched with the inner diameter of the rectifying tower body, the filler box body is fixedly arranged in the rectifying tower body, and the regular filler in the circular particle shape is arranged, so that the efficiency of air is high when the filler structure exchanges heat with the reflux liquid.
, a plurality of circular bubble cap structures are arranged in the middle of the upper surface of the tower plate structure and are arranged right below the sieve holes on the lower end face of the packing box body, an overflow weir is arranged on the upper surface of the tower plate structure and covers the circular bubble cap structures, liquid descending holes communicated with the upper end face and the lower end face of the tower plate structure are arranged on the outer side of the overflow weir on the tower plate structure, and backflow liquid is not easy to flow out from the vent holes of the bubble cap structures and further is not easy to block the vent holes to influence air upward flow by arranging the bubble cap structures on the tower plate structure.
, the circular bubble cap structure comprises a riser and a bubble cap, the riser is communicated with the upper end face and the lower end face of the tower plate structure, the bubble cap is fixedly arranged right above the riser through a fixing column, the bubble cap is sleeved at the upper end part of the riser, a plurality of vent holes are formed in the side wall of the bubble cap, and gas below the tower plate structure sequentially passes through the riser and the vent holes in the bubble cap and enters the upper part of the tower plate structure.
The beneficial effects are that the utility model discloses an environment-friendly rectifier units for preparing oxygen are through being provided with column plate structure and filler structure along vertical direction at the rectifying column body is inside alternately, through the contact heat transfer of backward flow liquid with the air of waiting to separate in column plate structure and the inside of filler structure to oxygen and nitrogen gas in the air can be fully, quick fractional distillation has been ensured.
Drawings
FIG. 1 is a block diagram of air separation oxygen generation of the present invention;
FIG. 2 is a schematic sectional structure diagram of a rectifying apparatus of the present invention;
FIG. 3 is a schematic structural diagram of the packing structure of the present invention;
FIG. 4 is a schematic top view of the tray structure of the present invention;
fig. 5 is a schematic structural diagram of the circular bubble cap structure of the present invention.
Detailed Description
The present invention will be further described in with reference to the accompanying drawings.
The environment-friendly rectification device for preparing oxygen comprises a rectification tower body 1, a lower tower 4 and an upper tower 5 are arranged in the rectification tower body 1, a condensation evaporator 6 is arranged between the lower tower 4 and the upper tower 5, an air inlet 41 is arranged at the lower end of the lower tower 4, a liquid nitrogen collecting tank 56 is arranged at the top end of the lower tower 4, a liquid nitrogen condensing valve 9 is arranged on a pipeline , a part of liquid nitrogen in the liquid nitrogen collecting tank is conveyed into the upper tower 5 by a pump to be used as reflux liquid, the lowest end of the lower tower 4 is communicated with the middle part of the upper tower 5 by a second pipeline, a reboiler 7 and an air internal flow valve 8 are arranged on the second pipeline, the liquid nitrogen is in contact with the lower tower 4 by the pump to be used as reflux liquid, a high-purity liquid collecting tank 52 is arranged at the upper end of the upper tower 5, a high-purity liquid column tower 5 is arranged at the upper end of the upper tower 5, a high-purity liquid column tower plate structure is arranged at the upper end of the upper tower plate 5, a reboiler 52 and a high-purity liquid column tower 5, and a high-purity liquid-collecting tank 52 is arranged at the upper end of the upper tower 5, and the lower tower, and the high-purity liquid-column.
The packing structure 3 comprises a packing box body 31 and a packing 32, wherein the cavity in the packing box body 31 is arranged in an inverted round table shape, and the packing 32 is filled in the cavity in the packing box body 31; the filler 32 is arranged in a spherical particle shape, the backflow liquid flows downwards from top to bottom in a film shape in the filler 32, and the air flows upwards from bottom to top continuously, so that the contact area between the air and the backflow liquid on the gap of the filler 32 is large, and the heat transfer between the air and the backflow liquid is facilitated; the upper end surface and the lower end surface of the packing box body 31 are respectively provided with a plurality of sieve holes 311 for communicating the inner cavity with the outside; the outer diameter of the packing box body 31 is matched with the inner diameter of the rectifying tower body 1, and the packing box body 31 is fixedly arranged in the rectifying tower body 1.
The middle part of the upper surface of the tower plate structure 2 is provided with a plurality of circular bubble cap structures 21, the circular bubble cap structures 21 are arranged under the sieve holes 311 on the lower end surface of the packing box body 31, the upper surface of the tower plate structure 2 is provided with an overflow weir 22, the overflow weir 22 is covered with the circular bubble cap structures 21, the outer side of the overflow weir 22 on the tower plate structure 2 is provided with a liquid descending hole 23 communicated with the upper end surface and the lower end surface of the tower plate structure 2, the circular bubble cap structures 21 are surrounded by the overflow weir 22, so that the return liquid flowing down from the sieve holes 311 on the bottom end of the packing structure 3 forms constant liquid level height in the region surrounded by the annular overflow weir 22, and thus, when the air rising from the circular bubble cap structures 21 contacts with the return liquid, a bubbling layer is formed, and the air and the return liquid.
The circular bubble cap structure 21 comprises a gas riser 211 and bubble caps 212, and the gas riser 211 is communicated with the upper end surface and the lower end surface of the tower plate structure 2; the bubble cap 212 is fixedly arranged right above the gas rising pipe 211 through a fixing column, and the bubble cap 212 is sleeved at the upper end part of the gas rising pipe 211; a plurality of vent holes 213 are arranged on the side wall of the bubble cap 212; the gas from the lower part of the tower plate structure 2 enters the upper part of the tower plate structure 2 through the gas rising pipe 211 and the vent hole 213 on the bubble cap 212 in sequence; the bubble cap structure 21 thus arranged can avoid the reflux liquid of the tray structure 2 from flowing down and blocking the vent holes 213 of the bubble cap 212, and simultaneously, the heat exchange of the air which extends upwards from the gas lifting pipe 211 to the upper part of the tray structure 2 and is fully contacted with the reflux liquid is more facilitated.
The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.

Claims (4)

  1. A kind of environment-friendly rectification device for preparing oxygen is characterized by comprising a rectification tower body (1), wherein the rectification tower body (1) comprises a tower plate structure (2) and a filler structure (3), and the tower plate structure (2) and the filler structure (3) are arranged in the rectification tower body (1) at intervals along the vertical direction.
  2. 2. The environment-friendly rectification device for preparing oxygen according to claim 1, characterized in that the packing structure (3) comprises a packing box body (31) and a packing (32), the cavity inside the packing box body (31) is arranged in an inverted round table shape, the packing (32) is filled in the cavity inside the packing box body (31), the packing (32) is arranged in a spherical particle shape, the upper and lower end surfaces of the packing box body (31) are respectively provided with a plurality of sieve holes (311) for communicating the cavity inside with the outside, the outer diameter of the packing box body (31) is matched with the inner diameter of the rectification tower body (1), and the packing box body (31) is fixedly arranged in the rectification tower body (1).
  3. 3. The environment-friendly rectifying device for preparing oxygen according to claim 1, wherein a plurality of circular bubble cap structures (21) are arranged in the middle of the upper surface of the tray structure (2), the circular bubble cap structures (21) are arranged under the sieve holes (311) on the lower end surface of the packing box body (31), an overflow weir (22) is arranged on the upper surface of the tray structure (2), the circular bubble cap structures (21) are wrapped by the overflow weir (22), and liquid descending holes (23) communicated with the upper end surface and the lower end surface of the tray structure (2) are arranged on the outer side of the overflow weir (22) on the tray structure (2).
  4. 4. The environment-friendly rectifying device for preparing oxygen according to claim 3, wherein the circular bubble cap structure (21) comprises a gas rising pipe (211) and a bubble cap (212), the gas rising pipe (211) is communicated with the upper end face and the lower end face of the tower plate structure (2), the bubble cap (212) is fixedly arranged right above the gas rising pipe (211) through a fixed column, the bubble cap (212) is sleeved at the upper end of the gas rising pipe (211), a plurality of vent holes (213) are formed in the side wall of the bubble cap (212), and gas below the tower plate structure (2) sequentially passes through the gas rising pipe (211) and the vent holes (213) in the bubble cap (212) and enters the upper part of the tower plate structure (2).
CN201920663724.2U 2019-05-10 2019-05-10 Environment-friendly rectifying device for preparing oxygen Active CN210004678U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920663724.2U CN210004678U (en) 2019-05-10 2019-05-10 Environment-friendly rectifying device for preparing oxygen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920663724.2U CN210004678U (en) 2019-05-10 2019-05-10 Environment-friendly rectifying device for preparing oxygen

Publications (1)

Publication Number Publication Date
CN210004678U true CN210004678U (en) 2020-01-31

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Application Number Title Priority Date Filing Date
CN201920663724.2U Active CN210004678U (en) 2019-05-10 2019-05-10 Environment-friendly rectifying device for preparing oxygen

Country Status (1)

Country Link
CN (1) CN210004678U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114322454A (en) * 2021-12-24 2022-04-12 海澜智云科技有限公司 Industrial Internet intelligent air separation device based on 5G network

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114322454A (en) * 2021-12-24 2022-04-12 海澜智云科技有限公司 Industrial Internet intelligent air separation device based on 5G network

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