CN114082272A - Propylene recovery device for tail gas at top of deethanizer - Google Patents
Propylene recovery device for tail gas at top of deethanizer Download PDFInfo
- Publication number
- CN114082272A CN114082272A CN202210069854.XA CN202210069854A CN114082272A CN 114082272 A CN114082272 A CN 114082272A CN 202210069854 A CN202210069854 A CN 202210069854A CN 114082272 A CN114082272 A CN 114082272A
- Authority
- CN
- China
- Prior art keywords
- condensation
- spiral
- heat exchange
- pipe
- tail gas
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 title claims abstract description 47
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 title claims abstract description 47
- 238000011084 recovery Methods 0.000 title claims abstract description 19
- 239000012528 membrane Substances 0.000 claims abstract description 91
- 238000000926 separation method Methods 0.000 claims abstract description 71
- 238000009833 condensation Methods 0.000 claims abstract description 70
- 230000005494 condensation Effects 0.000 claims abstract description 70
- 230000006835 compression Effects 0.000 claims abstract description 53
- 238000007906 compression Methods 0.000 claims abstract description 53
- 239000002826 coolant Substances 0.000 claims abstract description 15
- 238000012546 transfer Methods 0.000 claims abstract description 15
- 230000007246 mechanism Effects 0.000 claims abstract description 7
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 30
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 30
- 241001330002 Bambuseae Species 0.000 claims description 30
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 30
- 239000011425 bamboo Substances 0.000 claims description 30
- 239000007788 liquid Substances 0.000 claims description 29
- 230000005540 biological transmission Effects 0.000 claims description 16
- 239000003507 refrigerant Substances 0.000 claims description 11
- 238000009826 distribution Methods 0.000 claims description 9
- 238000001125 extrusion Methods 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 210000003205 muscle Anatomy 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 38
- 230000001965 increasing effect Effects 0.000 abstract description 15
- 238000001914 filtration Methods 0.000 description 8
- 238000007789 sealing Methods 0.000 description 6
- 230000002035 prolonged effect Effects 0.000 description 4
- 230000000979 retarding effect Effects 0.000 description 4
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- KBPLFHHGFOOTCA-UHFFFAOYSA-N 1-Octanol Chemical compound CCCCCCCCO KBPLFHHGFOOTCA-UHFFFAOYSA-N 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/002—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by condensation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0003—Condensation of vapours; Recovering volatile solvents by condensation by using heat-exchange surfaces for indirect contact between gases or vapours and the cooling medium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/22—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C7/00—Purification; Separation; Use of additives
- C07C7/005—Processes comprising at least two steps in series
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C7/00—Purification; Separation; Use of additives
- C07C7/144—Purification; Separation; Use of additives using membranes, e.g. selective permeation
Abstract
The invention discloses a propylene recovery device for tail gas at the top of a deethanizer tower, which relates to the technical field of propylene recovery and comprises a base, wherein a compression type refrigerator is fixedly arranged on one side of the top end of the base, a condensation component, a membrane separation component and a compression circulation component are sequentially arranged on the top end of the base, the condensation component comprises a condensation cylinder which is obliquely arranged, the upper end and the lower end of the condensation cylinder are respectively and fixedly connected with an inlet pipe and an outlet pipe, a heat exchange mechanism is arranged among the inlet pipe, the outlet pipe and the compression type refrigerator, and one ends of the inlet pipe and the outlet pipe, which face the condensation cylinder, are jointly connected with a spiral heat exchange pipe; the spiral auxiliary sheet is arranged, so that the heat exchange area between the spiral heat exchange tube and the tail gas can be increased, and the condensation effect on the tail gas is improved; on the other hand, the circulation groove that can cooperate to set up plays good unhurried current effect to the flow of tail gas to some tail gas can take place turbulent phenomenon in circulation groove department, thereby further improve the heat transfer effect of tail gas and coolant.
Description
Technical Field
The invention relates to the technical field of propylene recovery, in particular to a propylene recovery device for tail gas at the top of a deethanizer.
Background
Propylene is one of the basic raw materials of three major synthetic materials, and the largest amount is used for producing polypropylene. In addition. Propylene can be used for preparing acrylonitrile, propylene oxide, isopropanol, phenol, acetone, butanol, octanol, acrylic acid and esters thereof, propylene glycol, epichlorohydrin, synthetic glycerol and the like. The non-condensable gas discharged from a deethanizer in a gas separation device of an oil refinery contains about 30% Vol to 70% Vol of propylene, most of the propylene is used as civil gas without being separated and recovered, and the price of the propylene is high, so that the propylene is used as civil liquefied gas, and the problem of resource waste exists.
The utility model discloses a utility model patent that publication number is CN201933032U discloses the propylene recovery unit of deethanizer top of the tower tail gas among the gas separation device, contains condenser and membrane separator, and the condenser is equipped with feed gas intake pipe, condensate outlet pipe, noncondensable gas outlet pipe, refrigerant medium import takeover and refrigerant medium export takeover, and the noncondensable gas outlet pipe of condenser is connected with the entrance point of membrane separator. The device can separate propylene without changing the original parameters of the deethanizer, thereby improving the utilization rate of the propylene and the economic benefit of an oil refinery.
However, the invention has the following disadvantages: above-mentioned patent does not refine the processing to the condensation design, and traditional condensation design is comparatively simple, and tail gas can be comparatively quick in the condensation subassembly passes through, leads to the condensation effect of reality to produce great discount to heat exchange efficiency is general, and the condensation efficiency of tail gas is not high, so has certain limitation.
Disclosure of Invention
The invention aims to provide a propylene recovery device for the tail gas at the top of a deethanizer tower, so as to solve the problems in the background technology.
The technical scheme of the invention is as follows: a propylene recovery device for the top tail gas of a deethanizer tower comprises a base, wherein a compression refrigerator is fixedly arranged on one side of the top end of the base, a condensation component, a membrane separation component and a compression circulation component are sequentially arranged on the top end of the base, the condensation component comprises a condensation cylinder which is obliquely arranged, the upper end and the lower end of the condensation cylinder are respectively and fixedly connected with an inlet pipe and an outlet pipe, a heat exchange mechanism is arranged between the inlet pipe, the outlet pipe and the compression refrigerator, the inlet pipe and the outlet pipe are jointly connected with a spiral heat exchange pipe towards one end of the condensation cylinder, the outer side of the spiral heat exchange pipe is fixedly connected with a spiral accessory piece, the cross section of the spiral accessory piece is of a horn-shaped structure, a plurality of circulation grooves which are distributed equidistantly are formed in the middle end of the spiral accessory piece, a central rod is fixedly arranged on the inner wall on one side of the condensation cylinder, and one end of the central rod is positioned on the axis of the condensation cylinder, fixed mounting has the gas distribution auger piece on the circumference outer wall of well core rod, the circumference inner wall fixed mounting of condenser section of thick bamboo has the spiral to slowly flow the wall piece, and a plurality of weeping notches have been seted up to the bottom of spiral slowly flow the wall piece, and the spiral direction of spiral slowly flow the wall piece is opposite with the spiral direction of spiral heat exchange tube.
Preferably, the one end bottom fixedly connected with of condenser cylinder connects the liquid box, and the port department fixed mounting who connects the liquid box has the water conservancy diversion arc piece that a plurality of equidistance distribute, the top outer wall fixed mounting of base has and connects the thermal-insulated liquid storage pot that the liquid box is linked together, membrane separation subassembly includes the membrane separation section of thick bamboo, and fixed mounting has the support between membrane separation section of thick bamboo and the base, the equal fixedly connected with side end box of last lower extreme of membrane separation section of thick bamboo, and the inside of two side end boxes rotates through the bearing respectively and is connected with puts the membrane roller and receive the membrane roller, put the membrane roller and receive between the membrane roller around having received the separation membrane jointly.
Preferably, the last lower extreme of membrane separation section of thick bamboo all sets up the logical groove of linking a section of thick bamboo mutually with the side box, and membrane separation section of thick bamboo, side box are close to the both sides that lead to the groove and all rotate and are connected with the guide bar, the inside of membrane separation section of thick bamboo is rotated and is connected with a plurality of crisscross membrane roller poles that wear that distribute, and the separation membrane and through guide bar and membrane roller pole, one side fixed mounting of membrane separation section of thick bamboo has the end of intercommunication, fixedly connected with conveyer pipe between membrane separation section of thick bamboo and the condensation section of thick bamboo.
Preferably, put the one end fixedly connected with of membrane roller and slow down the motor, and put the membrane roller and receive the tensioning between the membrane roller and cup jointed the drive belt and form the transmission cooperation, the disappointing pipe of one side fixedly connected with of membrane separation cylinder, and the one end fixed mounting of disappointing pipe has the seal valve, disappointing pipe is connected with liquefied gas tank through external compression system.
Preferably, the compression circulation assembly comprises a high-pressure tank with a valve, the high-pressure tank with the valve is fixedly mounted on the base, a compression bobbin communicated with one side of the high-pressure tank with the valve is fixedly connected, the compression bobbin is fixedly connected with an L-shaped air supply pipe communicated with a communicating end, and a one-way valve I is fixedly mounted at one end, close to the compression bobbin, of the L-shaped air supply pipe.
Preferably, a hydraulic rod is fixedly mounted on the outer wall of one side of the support, an L-shaped transmission rod is fixedly mounted at the end part of an extension rod of the hydraulic rod, an extrusion column which is slidably connected with the inner wall of the compression bobbin is fixedly mounted at one end of the L-shaped transmission rod, and a sealing spiral convex rib is fixedly mounted on the outer wall of one end, close to the valved high-pressure tank, of the extrusion column.
Preferably, one end of the compression bobbin, which is close to the high-pressure tank with the valve, is fixedly provided with a check valve II, the high-pressure tank with the valve is close to two sides of the compression bobbin, which are close to the inner wall, and are fixedly connected with extension springs, the end parts of the extension springs are respectively and fixedly connected with semicircular baffles, the semicircular baffles are connected with the inner wall of the high-pressure tank with the valve through hinges, and a circulating pipe is fixedly connected between the top end of the high-pressure tank with the valve and the condensation cylinder together.
Preferably, the heat exchange mechanism comprises a heat exchange end box fixedly mounted at the top end of the compression refrigerator, the compression refrigerator is connected with a pipeline for conveying a refrigerant, one end, close to the heat exchange end box, of the pipeline is a heat exchange folded pipe, and the inlet pipe is communicated with the inside of the heat exchange end box.
Preferably, a circulating pump is fixedly mounted at one end of the output pipe, the output end of the circulating pump is communicated with the inner wall of the heat exchange end box, a plurality of zigzag plates are fixedly mounted inside the heat exchange end box, the heat exchange zigzag pipes are in sealed splicing with the zigzag plates, and cooling media are filled in the heat exchange end box, the output pipe and the inlet pipe.
Preferably, an adjusting air valve is fixedly mounted on the outer wall of one end of the condensation cylinder.
Compared with the prior art, the invention has the following improvements and advantages by improving the propylene recovery device for the tail gas at the top of the deethanizer, which is provided by the invention:
one is as follows: the tail gas at the top of the deethanizer can be effectively condensed by the condensing assembly, most of propylene can be condensed in condensate, and the uncondensed tail gas is separated by the membrane separation assembly, so that propylene gas flows into the compression circulation assembly and then flows into the condensing assembly, and the purpose of condensing and recycling most of propylene is achieved; by utilizing the arranged spiral auxiliary sheet, on one hand, the heat exchange area between the spiral heat exchange tube and the tail gas can be increased, and the condensation effect on the tail gas is improved; on the other hand, the tail gas heat exchanger can be matched with the arranged circulating grooves to play a good slow flow role in the flowing of the tail gas, and part of the tail gas can generate a turbulent flow phenomenon at the circulating grooves, so that the heat exchange effect of the tail gas and a cooling medium is further improved;
the second step is as follows: according to the invention, the spiral flow-slowing wall sheet arranged on the inner wall of the condensation cylinder is utilized, so that the flow of tail gas in the condensation cylinder can be further delayed, the flow path can be increased, and the heat exchange time of unit tail gas is prolonged, thus the condensation effect on the tail gas is enhanced, and the recovery efficiency of propylene is increased; the condensed liquid can rapidly flow to the liquid receiving box by utilizing the liquid leakage notch arranged on the spiral slow flow wall sheet; by utilizing the central rod and the gas distribution auger piece which are arranged on the condensation cylinder, when tail gas flows through, the tail gas can be distributed by utilizing the cambered surface structure of the auger piece, so that the tail gas at the center can flow to the spiral heat exchange tube, the contact degree of the tail gas with the spiral heat exchange tube and the spiral auxiliary piece is favorably further improved, and the condensation effect is further improved;
and thirdly: according to the invention, the arranged separation membrane is utilized, so that the tail gas can be filtered, the propylene gas can pass through the separation membrane, the purpose of purification is achieved, and the recovery effect of propylene is improved; the separation membrane can be in an electrocardiogram structure by utilizing the plurality of guide rods and the membrane penetrating roller rods, so that the area of the separation membrane in the membrane separation cylinder is effectively increased, and the tail gas filtering effect is improved; the film releasing roller and the film collecting roller can be driven to rotate by the transmission action of the transmission belt through the arranged retarding motor, so that the separation film is collected and released, the separation film in the film separation cylinder is replaced, and the tail gas is ensured to have a good filtering effect all the time;
fourthly, the method comprises the following steps: the arranged bent pipe can improve the heat exchange area between the refrigerant and the cooling medium in the compression type refrigerator, and ensure the heat exchange effect; the utilization sets up the folded plate of a plurality of crisscross distributions, can effectively prolong coolant's flow path, is favorable to further improving the heat transfer effect of coolant and refrigerant to guarantee the condensation effect to tail gas.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic view of an overall three-dimensional structure at a first viewing angle according to the present invention;
FIG. 2 is a schematic view of an overall three-dimensional structure at a second viewing angle according to the present invention;
FIG. 3 is a schematic diagram of a semi-sectional structure of a condenser according to the present invention;
FIG. 4 is an enlarged view of the structure at A in FIG. 3 according to the present invention;
FIG. 5 is a schematic diagram of an exploded structure of a condensing cylinder according to the present invention;
FIG. 6 is a schematic perspective view of a spiral slow flow wall sheet according to the present invention;
FIG. 7 is a schematic view of the internal structure of the heat exchange end box of the present invention;
FIG. 8 is a schematic view of the internal structure of the membrane separation cartridge according to the present invention;
FIG. 9 is a schematic perspective view of an extrusion column according to the present invention;
fig. 10 is a schematic perspective view of a spiral heat exchange tube according to the present invention.
Reference numerals:
1. a base; 2. a compression type refrigerator; 3. a heat exchange end box; 301. a folded plate; 4. a membrane separation cartridge; 401. a support; 402. a retarding motor; 403. a transmission belt; 404. a delivery pipe; 405. a side end box; 406. a film releasing roller; 407. a guide bar; 408. a separation membrane; 409. a film-penetrating roller rod; 410. a film collecting roller; 411. an air escape pipe; 412. a communication end; 5. compressing the bobbin; 501. extruding the column; 502. sealing the spiral convex rib; 503. a second one-way valve; 6. a valved high pressure tank; 601. a circulation pipe; 602. an extension spring; 603. a semicircular baffle plate; 7. an L-shaped gas supply pipe; 701. a one-way valve I; 8. a condensing cylinder; 801. an output pipe; 802. introducing a pipe; 803. an air valve is adjusted; 804. a spiral slow flow wall sheet; 805. a spiral heat exchange tube; 806. a center pole; 807. a circulation pump; 808. gas distribution auger piece; 809. a liquid leakage notch; 810. a heat exchange folded pipe; 811. a spiral tag; 812. a circulation tank; 9. a liquid receiving box; 901. a flow guide arc sheet; 10. a heat-insulating liquid storage tank; 11. a hydraulic lever; 12. an L-shaped transmission rod.
Detailed Description
The present invention is described in detail below, and technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a propylene recovery device of the tail gas at the top of a deethanizer tower through improvement, and the technical scheme of the invention is as follows:
as shown in fig. 1 to 10, an embodiment of the present invention provides a propylene recovery apparatus for top tail gas of a deethanizer, comprising a base 1, a compression refrigerator 2 fixedly installed on one side of a top end of the base 1, a condensation component, a membrane separation component and a compression circulation component sequentially installed on the top end of the base 1, the condensation component comprising a condensation cylinder 8 disposed in an inclined manner, an inlet pipe 802 and an outlet pipe 801 respectively fixedly connected to upper and lower ends of the condensation cylinder 8, a heat exchange mechanism installed between the inlet pipe 802, the outlet pipe 801 and the compression refrigerator 2, a spiral heat exchange pipe 805 connected to one end of the inlet pipe 802 and one end of the outlet pipe 801 facing the condensation cylinder 8, a spiral attachment 811 fixedly connected to an outer side of the spiral heat exchange pipe 805, a cross section of the spiral attachment 811 having an angular structure, a plurality of flow grooves 812 distributed at a middle end of the spiral attachment 811, a central rod 806 fixedly installed on an inner wall of one side of the condensation cylinder 8, and one end of the central rod 806 is located at the axis of the condensation cylinder 8, the gas distribution auger piece 808 is fixedly installed on the circumferential outer wall of the central rod 806, the spiral slow flow wall piece 804 is fixedly installed on the circumferential inner wall of the condensation cylinder 8, a plurality of liquid leakage notches 809 are formed in the bottom end of the spiral slow flow wall piece 804, and the spiral direction of the spiral slow flow wall piece 804 is opposite to the spiral direction of the spiral heat exchange tube 805.
By means of the structure, the tail gas at the top of the deethanizer can be effectively condensed by the aid of the arranged condensing assembly, most of propylene can be condensed in the condensate, and the uncondensed tail gas is separated by the membrane separation assembly, so that propylene gas flows into the compression circulation assembly and then flows into the condensing assembly, and the process is repeated in this way, and most of propylene is condensed and recovered; the spiral auxiliary fins 811 are arranged to increase the surface area of the outer side of the spiral heat exchange tube 805, so that on one hand, the heat exchange area and the contact degree of the spiral heat exchange tube 805 and tail gas can be improved, the heat exchange efficiency of the spiral heat exchange tube 805 and the tail gas is increased, and the condensation effect of the tail gas is improved; on the other hand, the blocking effect of the spiral heat exchange tube 805 on the tail gas can be enhanced, a good slow flow effect is achieved on the flow of the tail gas, and by utilizing the circulation groove 812 arranged on the spiral auxiliary piece 811, part of the tail gas can generate a turbulent flow phenomenon at the position of the circulation groove 812, and the cross section of the spiral auxiliary piece 811 is of an angular structure, so that the tail gas can generate a narrow-tube effect when passing through the circulation groove 812, the turbulent flow degree of the tail gas at the position of the circulation groove 812 can be increased, the tail gas is in contact with the spiral auxiliary piece 811, the heat exchange is sufficient, and the heat exchange effect of the tail gas and a cooling medium is further improved; the spiral slow flow wall sheet 804 arranged on the inner wall of the condensation cylinder 8 is utilized, and the sheet structure of the spiral slow flow wall sheet 804 can generate certain resistance to tail gas flowing through the inner wall of the condensation cylinder 8, so that the tail gas is prevented from directly flowing in a linear direction, and the spiral direction of the spiral slow flow wall sheet 804 is opposite to that of the spiral heat exchange tube 805, so that the guide effect of the spiral slow flow wall sheet on the tail gas is opposite, the turbulence degree of the tail gas in the condensation cylinder 8 is favorably improved, the flowing of the tail gas in the condensation cylinder 8 can be further delayed, the flow path of the tail gas can be increased, the heat exchange time of unit tail gas in the condensation cylinder 8 is prolonged, the condensation effect on the tail gas is enhanced, and the recovery efficiency of propylene is increased; by utilizing the leakage liquid notch 809 arranged on the spiral slow flow wall sheet 804, the condensed liquid can smoothly flow downwards through the leakage liquid notch 809, so that the condensed liquid can quickly flow to the liquid receiving box 9; utilize to set up in well core rod 806 and branch gas auger piece 808 of condenser tube 8, when tail gas flows through, can utilize the cambered surface structure who divides gas auger piece 808, play the reposition of redundant personnel guide effect to tail gas, make the tail gas that is located condenser tube 8 center department, can surge to spiral heat exchange tube 805, avoid most tail gas direct process condenser tube 8, be favorable to further improving tail gas and spiral heat exchange tube 805 and spiral accessory piece 811's degree of contact, and indirectly strengthen spiral heat exchange tube 805 and spiral accessory piece 811 to the heat transfer effect of tail gas, realize the more high-efficient cooling to tail gas, further improve the condensation effect of tail gas.
Further, the one end bottom fixedly connected with of condenser cylinder 8 connects liquid box 9 that is linked together, and the port department fixed mounting who connects liquid box 9 has the water conservancy diversion arc piece 901 of a plurality of equidistance distributions, the top outer wall fixed mounting of base 1 has the thermal-insulated liquid storage pot 10 that is linked together with connecing liquid box 9, membrane separation subassembly includes membrane separation section of thick bamboo 4, and fixed mounting has support 401 between membrane separation section of thick bamboo 4 and the base 1, the equal fixedly connected with side end box 405 of last lower extreme of membrane separation section of thick bamboo 4, and the inside of two side end boxes 405 rotates through the bearing respectively and is connected with puts membrane roller 406 and receive membrane roller 410, put between membrane roller 406 and the receive membrane roller 410 around having received separating membrane 408 jointly.
By means of the structure, the guide arc piece 901 can be used for blowing the entering tail gas to the upper part obliquely, so that the tail gas is prevented from directly acting on the condensate, resistance to the downward flow of the condensate is avoided, and the condensate can be favorably and quickly flowed into the heat-insulation liquid storage tank 10 through the liquid receiving box 9; utilize the separation membrane 408 that sets up, can carry out filtration treatment to tail gas, propylene gas can pass through separation membrane 408, reaches the purpose of purification, improves the recovery effect to propylene.
Further, the last lower extreme of membrane separation section of thick bamboo 4 all sets up the logical groove of linking with side box 405 mutually, and membrane separation section of thick bamboo 4, side box 405 all rotates near the both sides that lead to the groove and is connected with guide bar 407, the inside rotation of membrane separation section of thick bamboo 4 is connected with a plurality of crisscross membrane roller pole 409 that distribute, and separation membrane 408 and through guide bar 407 and membrane roller pole 409, one side fixed mounting of membrane separation section of thick bamboo 4 has the end 412 of connecting, fixedly connected with conveyer pipe 404 between membrane separation section of thick bamboo 4 and the condensation cylinder 8.
By means of the structure, the separation membrane 408 can be in an electrocardiogram structure by utilizing the guide rods 407 and the membrane penetrating roller rod 409, so that the area of the separation membrane 408 in the membrane separation cylinder 4 is effectively increased, and the filtering effect on tail gas is improved.
Further, one end of the film releasing roller 406 is fixedly connected with a retarding motor 402, a transmission belt 403 is sleeved between the film releasing roller 406 and the film receiving roller 410 in a tensioning manner to form transmission fit, one side of the film separating cylinder 4 is fixedly connected with a gas release pipe 411, one end of the gas release pipe 411 is fixedly provided with a sealing valve, and the gas release pipe 411 is connected with a liquefied gas tank through an external compression system.
By means of the structure, the retarding motor 402 is controlled to be started, the film releasing roller 406 and the film receiving roller 410 can be driven to rotate through the transmission action of the transmission belt 403, the separation film 408 is released and received, the separation film 408 in the film separation cylinder 4 is replaced, and therefore the tail gas is guaranteed to have a good filtering effect all the time; by utilizing the arranged air leakage pipe 411, the tail gas with the reduced propylene content can be subsequently introduced into the liquefied gas tank, and the utilization of the tail gas is ensured.
Further, the compression circulation assembly comprises a high-pressure tank 6 with a valve fixedly installed on the base 1, a compression bobbin 5 communicated with one side of the high-pressure tank 6 with the valve is fixedly connected, an L-shaped air supply pipe 7 communicated with the communication end 412 is fixedly connected with the compression bobbin 5, and a one-way valve 701 is fixedly installed at one end, close to the compression bobbin 5, of the L-shaped air supply pipe 7.
Further, a hydraulic rod 11 is fixedly installed on the outer wall of one side of the support 401, an L-shaped transmission rod 12 is fixedly installed at the end of an extension rod of the hydraulic rod 11, an extrusion column 501 slidably connected with the inner wall of the compression bobbin 5 is fixedly installed at one end of the L-shaped transmission rod 12, and a sealing spiral convex rib 502 is fixedly installed on the outer wall of one end of the extrusion column 501 close to the valved high-pressure tank 6.
By means of the structure, the arranged hydraulic rod 11 can drive the extrusion column 501 to reciprocate on the compression bobbin 5, and the filtered tail gas is continuously pressed into the high-pressure tank 6 with the valve by means of the sealing effect of the sealing spiral convex rib 502, so that the tail gas is compressed.
Further, one end of the compression bobbin 5 close to the valved high-pressure tank 6 is fixedly provided with a check valve II 503, the valved high-pressure tank 6 close to the inner wall close to the compression bobbin 5 is fixedly connected with extension springs 602, the end portions of the extension springs 602 are fixedly connected with semicircular baffles 603 respectively, the semicircular baffles 603 are connected with the inner wall of the valved high-pressure tank 6 through hinges, and a circulating pipe 601 is fixedly connected between the top end of the valved high-pressure tank 6 and the condensation cylinder 8.
By means of the structure, the one-way valve I701 and the one-way valve II 503 are arranged, so that the tail gas can be guaranteed to move to the high-pressure tank 6 with the valve in one way smoothly from the L-shaped gas supply pipe 7; by means of the extension spring 602 and the semicircular baffle 603, after the air pressure in the high-pressure tank 6 with the valve rises continuously, the semicircular baffle 603 can be abutted, and at the moment, the extension spring 602 can be abutted against the partial internal pressure, so that the air can be introduced into the high-pressure tank 6 with the valve smoothly.
Further, heat transfer mechanism includes heat transfer end box 3 fixed mounting in 2 tops of compression refrigerator, is connected with the pipeline that is used for carrying the refrigerant on the compression refrigerator 2, and the pipeline is close to the one end of heat transfer end box 3 and sets up to heat transfer book venturi tube 810, lets in pipe 802 and is linked together with heat transfer end box 3 is inside.
Furthermore, a circulating pump 807 is fixedly installed at one end of the output pipe 801, an output end of the circulating pump 807 is communicated with an inner wall of the heat exchange end box 3, a plurality of zigzag plates 301 which are distributed in a staggered manner are fixedly installed inside the heat exchange end box 3, the heat exchange zigzag pipe 810 is in sealed insertion connection with the plurality of zigzag plates 301, and cooling media are filled in the heat exchange end box 3, the output pipe 801 and the inlet pipe 802.
By means of the structure, the heat exchange area between the refrigerant and the cooling medium in the compression type refrigerator 2 can be increased by the arranged heat exchange bent pipe 810, and the heat exchange effect is ensured; by arranging the plurality of zigzag plates 301 in a staggered manner, the flow path of the cooling medium can be effectively prolonged, and the heat exchange effect of the cooling medium and the refrigerant can be further improved.
Furthermore, an adjusting air valve 803 is fixedly installed on the outer wall of one end of the condensation cylinder 8.
Borrow by above-mentioned structure, utilize the governing pneumatic valve 803 that sets up, can let in the condensation section of thick bamboo 8 with tail gas slow speed, avoid the tail gas flow velocity too fast, influence the condensation effect of retrieving.
When the invention is used: the compression type refrigerator 2 is started to carry out active refrigeration treatment, the heat exchange area between the refrigerant and the cooling medium in the compression type refrigerator 2 is increased through the heat exchange bent pipe 810, the flow path of the cooling medium is effectively prolonged through the plurality of bent plates 301 which are distributed in a staggered mode, and the heat exchange effect between the cooling medium and the refrigerant is improved; starting a circulating pump 807 to pump a low-temperature cooling medium into the spiral heat exchange tube 805 through the inlet tube 802, and slowly introducing tail gas into the condensation cylinder 8 by using the arranged regulating air valve 803; by the aid of the arranged spiral auxiliary pieces 811, on one hand, the heat exchange area of the spiral heat exchange tube 805 and the tail gas is increased, and the condensation effect of the tail gas is improved; on the other hand, the matched circulation groove 812 plays a good role in slowing the flow of the tail gas, and part of the tail gas generates turbulence at the circulation groove 812, so that the heat exchange effect of the tail gas and the cooling medium is further improved; the spiral slow flow wall sheet 804 arranged on the inner wall of the condensation cylinder 8 is utilized to further delay the flow of the tail gas in the condensation cylinder 8, increase the flow path and improve the heat exchange time of unit tail gas, thereby enhancing the condensation effect of the tail gas and increasing the recovery efficiency of propylene; the condensed liquid can rapidly flow to the liquid receiving box 9 by using the liquid leakage notch 809 arranged on the spiral slow flow wall sheet 804; by utilizing the central rod 806 and the gas distribution auger piece 808 arranged on the condensation cylinder 8, when tail gas flows through, the tail gas is distributed by utilizing the cambered surface structure of the auger piece, so that the tail gas at the center flows to the spiral heat exchange tube 805, and the contact degree of the tail gas with the spiral heat exchange tube 805 and the spiral auxiliary piece 811 is further improved; the condensed tail gas is input into the membrane separation cylinder 4 through the conveying pipe 404, the tail gas is filtered by the arranged separation membrane 408, the propylene gas can pass through the separation membrane 408, the purification purpose is achieved, the propylene recovery effect is improved, and the separation membrane 408 is in an electrocardiogram structure by the arranged guide rods 407 and the membrane penetrating roller rods 409, so that the area of the separation membrane 408 in the membrane separation cylinder 4 is effectively increased, and the tail gas filtering effect is improved; the slow speed motor 402 is controlled to be started, the film releasing roller 406 and the film collecting roller 410 are driven to rotate through the transmission action of the transmission belt 403, and then the separation film 408 is collected and released, so that the separation film 408 in the film separation cylinder 4 is replaced, and the tail gas is ensured to have a good filtering effect all the time; utilize the hydraulic stem 11 that sets up to drive extrusion post 501 at the reciprocating motion of compression bobbin 5, borrow by the sealed effect of sealed spiral protruding muscle 502, constantly impress the tail gas after filtering in taking valve high-pressure tank 6, accomplish the compression to tail gas to among the rethread condensation subassembly, so reciprocal, carry out the condensation with most propylene and retrieve.
The previous description is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides a propylene recovery unit of deethanizer tower top gas, includes base (1), its characterized in that: the utility model discloses a heat exchanger, including base (1), top end, condensation subassembly, membrane separation subassembly and compression cycle subassembly, the top of base (1) is fixed mounting has compression refrigerator (2) on one side of the top, and the top of base (1) installs condensation subassembly, membrane separation subassembly and compression cycle subassembly in proper order, the condensation subassembly includes condensation cylinder (8) that the slope set up, and the upper and lower end difference fixedly connected with of condensation cylinder (8) lets in pipe (802) and output tube (801), let in and install heat transfer mechanism between pipe (802), output tube (801) and compression refrigerator (2), and let in pipe (802) and output tube (801) and be connected with spiral heat exchange tube (805) jointly towards the one end of condensation cylinder (8), the outside fixedly connected with spiral attachment (811) of spiral heat exchange tube (805), and the transversal structure of personally submitting of spiral attachment (811) is the horn shape, a plurality of equidistance distribution's circulation groove (812) is seted up to the middle-end of spiral attachment (811), one side inner wall fixed mounting of condensation section of thick bamboo (8) has well core rod (806), and the one end of well core rod (806) is located the axis department of condensation section of thick bamboo (8), fixed mounting has branch gas auger piece (808) on the circumference outer wall of well core rod (806), the circumference inner wall fixed mounting of condensation section of thick bamboo (8) has spiral slow flow wall piece (804), and a plurality of weeping notches (809) have been seted up to the bottom of spiral slow flow wall piece (804), and the spiral direction of spiral slow flow wall piece (804) is opposite with the spiral direction of spiral heat exchange tube (805).
2. The apparatus for recovering propylene from the top gas of the deethanizer according to claim 1, wherein: the utility model discloses a membrane separation device, including condensation cylinder (8), the one end of condensation cylinder (8) bottom fixedly connected with connect liquid box (9) that are linked together, and the port department fixed mounting who connects liquid box (9) has a plurality of equidistance water conservancy diversion arc pieces (901) that distribute, the top outer wall fixed mounting of base (1) has and connects thermal-insulated liquid storage pot (10) that liquid box (9) are linked together, membrane separation subassembly includes membrane separation cylinder (4), and fixed mounting has support (401) between membrane separation cylinder (4) and base (1), the equal fixedly connected with side end box (405) of last lower extreme of membrane separation cylinder (4), and the inside of two side end boxes (405) rotates through the bearing respectively and is connected with puts membrane roller (406) and receive membrane roller (410), it has separation membrane (408) to put around having connect between membrane roller (406) and receive membrane roller (410) jointly.
3. The apparatus for recovering propylene from the top gas of the deethanizer according to claim 2, wherein: the logical groove of a section of thick bamboo that links to each other with side end box (405) is all seted up to the last lower extreme of membrane separation section of thick bamboo (4), and membrane separation section of thick bamboo (4), side end box (405) are close to the both sides that lead to the groove and all rotate and are connected with guide bar (407), the inside rotation of membrane separation section of thick bamboo (4) is connected with a plurality of crisscross membrane roller rods (409) that distribute, and separation membrane (408) and through guide bar (407) and membrane roller rods (409), one side fixed mounting of membrane separation section of thick bamboo (4) has intercommunication end (412), fixedly connected with conveyer pipe (404) between membrane separation section of thick bamboo (4) and condensation section of thick bamboo (8).
4. The apparatus for recovering propylene from the top gas of the deethanizer according to claim 3, wherein: put one end fixedly connected with of membrane roller (406) slow motor (402), and put membrane roller (406) and receive between membrane roller (410) tensioning cup jointed drive belt (403) and form the transmission cooperation, one side fixedly connected with of membrane separator (4) loses heart pipe (411), and the one end fixed mounting of losing heart pipe (411) has a seal valve, it is connected with liquefied gas tank through external compression system to lose heart pipe (411).
5. The apparatus for recovering propylene from the top gas of the deethanizer according to claim 3, wherein: the compression circulation assembly comprises a high-pressure tank (6) with a valve, the high-pressure tank (6) with the valve is fixedly mounted on the base (1), a compression bobbin (5) is fixedly connected to one side of the high-pressure tank (6) with the valve and communicated with the high-pressure tank, an L-shaped air supply pipe (7) is fixedly connected to the communication end (412) of the compression bobbin (5), and a one-way valve I (701) is fixedly mounted at one end, close to the compression bobbin (5), of the L-shaped air supply pipe (7).
6. The apparatus for recovering propylene from the top gas of the deethanizer according to claim 5, wherein: the outer wall fixed mounting of one side of support (401) has hydraulic stem (11), and the extension rod tip fixed mounting of hydraulic stem (11) has L shape transfer line (12), the one end fixed mounting of L shape transfer line (12) have with compression bobbin (5) inner wall sliding connection's extrusion post (501), and extrusion post (501) are close to on the one end outer wall of valved high-pressure tank (6) fixed mounting have sealed spiral protruding muscle (502).
7. The apparatus for recovering propylene from the top gas of the deethanizer according to claim 6, wherein: the one end fixed mounting that compression bobbin (5) are close to valved high-pressure tank (6) has check valve two (503), and valved high-pressure tank (6) are close to equal fixedly connected with extension spring (602) in both sides that the inner wall is close to compression bobbin (5), the tip of extension spring (602) is fixedly connected with semicircle baffle (603) respectively, and semicircle baffle (603) all are connected through the hinge with valved high-pressure tank (6) inner wall, common fixedly connected with circulating pipe (601) between the top of valved high-pressure tank (6) and condenser cylinder (8).
8. The apparatus for recovering propylene from the top gas of the deethanizer according to claim 1, wherein: the heat exchange mechanism comprises a heat exchange end box (3) fixedly mounted at the top end of the compression type refrigerator (2), a pipeline used for conveying a refrigerant is connected onto the compression type refrigerator (2), one end, close to the heat exchange end box (3), of the pipeline is arranged to be a heat exchange folded pipe (810), and the inlet pipe (802) is communicated with the inside of the heat exchange end box (3).
9. The apparatus for recovering propylene from the top gas of the deethanizer as set forth in claim 8, wherein: one end fixed mounting of output tube (801) has circulating pump (807), and the output of circulating pump (807) is linked together with the inner wall of heat transfer end box (3), the inside fixed mounting of heat transfer end box (3) has a plurality of zigzag distribution's folded plate (301), heat transfer folded pipe (810) are with a plurality of folded plate (301) are sealed to be pegged graft, heat transfer end box (3), output tube (801) and the inside that lets in pipe (802) all fill and are equipped with coolant.
10. The apparatus for recovering propylene from the top gas of the deethanizer according to claim 1, wherein: and an adjusting air valve (803) is fixedly arranged on the outer wall of one end of the condensation cylinder (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210069854.XA CN114082272B (en) | 2022-01-21 | 2022-01-21 | Propylene recovery device for tail gas at top of deethanizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210069854.XA CN114082272B (en) | 2022-01-21 | 2022-01-21 | Propylene recovery device for tail gas at top of deethanizer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114082272A true CN114082272A (en) | 2022-02-25 |
| CN114082272B CN114082272B (en) | 2022-06-10 |
Family
ID=80309045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210069854.XA Active CN114082272B (en) | 2022-01-21 | 2022-01-21 | Propylene recovery device for tail gas at top of deethanizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114082272B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011152526A (en) * | 2010-01-28 | 2011-08-11 | Gunma Prefecture | Adsorption tower equipped with flow passage for heating medium feeding and use of the adsorption tower |
| CN105953616A (en) * | 2016-06-07 | 2016-09-21 | 天津市冰科制冷设备有限公司 | Efficient refrigeration spiral pipe type evaporator |
| CN206980436U (en) * | 2017-04-27 | 2018-02-09 | 天津汇金敏峰新材料科技有限公司 | A kind of eddy flow phase transformation sieving flue gas desulfurization complementary energy reclaims integrated reactor |
| CN208042865U (en) * | 2017-11-24 | 2018-11-02 | 中国西电电气股份有限公司 | A kind of Double-metal heat exchanging tube |
| CN210399706U (en) * | 2019-08-16 | 2020-04-24 | 徐州聚西廷新型材料科技有限公司 | Polypropylene tail gas membrane recovery unit |
| CN211585853U (en) * | 2019-12-19 | 2020-09-29 | 山东嘉绣环保工程有限公司 | Waste gas purification treatment equipment |
| CN212166565U (en) * | 2020-04-14 | 2020-12-18 | 扬州惠通化工科技股份有限公司 | Dehydration evaporation plant of nylon salt liquid |
| CN112370901A (en) * | 2020-11-09 | 2021-02-19 | 史福浪 | Air treatment device for coal mine operation |
| CN212881709U (en) * | 2020-07-14 | 2021-04-06 | 巨鑫生物制药股份有限公司 | Multistage tail gas treatment system |
| CN112755719A (en) * | 2021-01-15 | 2021-05-07 | 浙江同善环保科技有限公司 | Efficient organic waste gas recovery device and process |
-
2022
- 2022-01-21 CN CN202210069854.XA patent/CN114082272B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011152526A (en) * | 2010-01-28 | 2011-08-11 | Gunma Prefecture | Adsorption tower equipped with flow passage for heating medium feeding and use of the adsorption tower |
| CN105953616A (en) * | 2016-06-07 | 2016-09-21 | 天津市冰科制冷设备有限公司 | Efficient refrigeration spiral pipe type evaporator |
| CN206980436U (en) * | 2017-04-27 | 2018-02-09 | 天津汇金敏峰新材料科技有限公司 | A kind of eddy flow phase transformation sieving flue gas desulfurization complementary energy reclaims integrated reactor |
| CN208042865U (en) * | 2017-11-24 | 2018-11-02 | 中国西电电气股份有限公司 | A kind of Double-metal heat exchanging tube |
| CN210399706U (en) * | 2019-08-16 | 2020-04-24 | 徐州聚西廷新型材料科技有限公司 | Polypropylene tail gas membrane recovery unit |
| CN211585853U (en) * | 2019-12-19 | 2020-09-29 | 山东嘉绣环保工程有限公司 | Waste gas purification treatment equipment |
| CN212166565U (en) * | 2020-04-14 | 2020-12-18 | 扬州惠通化工科技股份有限公司 | Dehydration evaporation plant of nylon salt liquid |
| CN212881709U (en) * | 2020-07-14 | 2021-04-06 | 巨鑫生物制药股份有限公司 | Multistage tail gas treatment system |
| CN112370901A (en) * | 2020-11-09 | 2021-02-19 | 史福浪 | Air treatment device for coal mine operation |
| CN112755719A (en) * | 2021-01-15 | 2021-05-07 | 浙江同善环保科技有限公司 | Efficient organic waste gas recovery device and process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114082272B (en) | 2022-06-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101135507B (en) | Ammonia water absorbing refrigerator | |
| CN87102842A (en) | Plate type countercurrent heatexchanger | |
| CN101723476B (en) | Seawater desalination device employing solar energy and vapor compressing distillation | |
| CN114082272B (en) | Propylene recovery device for tail gas at top of deethanizer | |
| CN102463006B (en) | Oil-gas separator | |
| CN2872269Y (en) | Improved equal flow-speed gas-liquid heat exchanger | |
| CN207153150U (en) | A kind of high pressure propylene condenser | |
| CN108744980A (en) | Without liquid storage membrane module coupling MVR concentration strong corrosive solution systems and method | |
| CN108506178A (en) | A kind of energy recycle device and its hybrid system of the driving of combination temperature difference | |
| CN101973596B (en) | Flash-evaporation and condensation integrated seawater desalinization device | |
| CN203770078U (en) | Waste heat recycling system of air compressor | |
| CN207899002U (en) | Double tower falling film evaporator group | |
| CN208281127U (en) | A kind of energy recycle device and its composite system of the driving of combination temperature difference | |
| CN216125185U (en) | Traditional chinese medicine enrichment facility | |
| CN206486304U (en) | Compressing energy-saving evaporator system | |
| CN213739032U (en) | Novel initiative recovery latent heat disk type solar energy sea water desalination device | |
| CN204319794U (en) | A kind of wave steam recompression continuous evaporation device | |
| CN106468515B (en) | A kind of the solar heat pump evaporator and water heater of middle part hollow out | |
| CN114984694A (en) | Combined organic waste gas treatment device and use method thereof | |
| CN201377997Y (en) | Double-side four-flow strengthened heat exchanger | |
| CN201242378Y (en) | Novel shell type heat exchanger | |
| CN207210005U (en) | A kind of reverse osmosis thick water treatment system | |
| CN220090948U (en) | Falling film desorption device | |
| CN209396946U (en) | A kind of oily-water seperating equipment | |
| CN104436728B (en) | A kind of wave steam recompression continuous evaporation system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20240125 Granted publication date: 20220610 |