CN116440664B - Drying device for mixed hydrocarbon production - Google Patents

Drying device for mixed hydrocarbon production Download PDF

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Publication number
CN116440664B
CN116440664B CN202310727566.3A CN202310727566A CN116440664B CN 116440664 B CN116440664 B CN 116440664B CN 202310727566 A CN202310727566 A CN 202310727566A CN 116440664 B CN116440664 B CN 116440664B
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pipe
adsorbent
mixed hydrocarbon
communicated
drying
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CN116440664A (en
Inventor
石科
杨辉
贾延斌
赵新磊
迟健
卢翔
肖军
门树峰
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Dezhou Neng Ao Petroleum Technology Co ltd
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Dezhou Neng Ao Petroleum Technology Co ltd
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    • 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
    • B01D53/26—Drying gases or vapours
    • B01D53/261—Drying gases or vapours by adsorption
    • 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
    • B01D53/02—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 adsorption, e.g. preparative gas chromatography
    • B01D53/04—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 adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B01D53/0407—Constructional details of adsorbing systems
    • 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
    • B01D53/14—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 absorption
    • B01D53/1493—Selection of liquid materials for use as absorbents
    • 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
    • B01D53/14—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 absorption
    • B01D53/18—Absorbing units; Liquid distributors therefor
    • B01D53/185—Liquid distributors
    • 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
    • B01D53/26—Drying gases or vapours
    • B01D53/263—Drying gases or vapours by absorption
    • 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
    • B01D53/26—Drying gases or vapours
    • B01D53/265—Drying gases or vapours by refrigeration (condensation)
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
    • B01D2252/20—Organic absorbents
    • B01D2252/202—Alcohols or their derivatives
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Abstract

The invention belongs to the technical field of mixed hydrocarbon drying equipment, and relates to a drying device for mixed hydrocarbon production, which comprises a bottom frame, a liquefied pipe array assembly, a condensed pipe array assembly, an atomization drying module and an adsorbent online replacement module, wherein the condensed pipe array assembly is arranged at the inner side of the liquefied pipe array assembly, the atomization drying module comprises a pressure pipe and an atomization assembly, and the pressure pipe penetrates into the thin-wall pipe from the inside of a sealed threaded head and extends to the outside of the thin-wall pipe; the atomizing assembly comprises a ring seat sleeved and fixed at the middle lower part of the thin-wall pipe, and a flow passage is arranged at the inner side of the ring seat; the flow passage is an annular groove formed in the inner side of the ring seat or an annular pipe fixed to the inner side of the ring seat; a plurality of atomizing spray heads are horizontally and/or upwards arranged in the circumferential direction of the ring seat; the atomization nozzle is communicated with the flow passage, and the drying device for mixed hydrocarbon production can deeply dehydrate and dry the mixed hydrocarbon, has high drying efficiency and can improve the quality index of the mixed hydrocarbon product.

Description

Drying device for mixed hydrocarbon production
Technical Field
The invention particularly relates to a drying device for mixed hydrocarbon production, and belongs to the technical field of mixed hydrocarbon drying equipment.
Background
When the existing mixed hydrocarbon product is produced, the mixed hydrocarbon raw material is required to be directly sent to an extraction rectifying tower for distillation, a large amount of water in the mixed hydrocarbon is removed, and after the mixed hydrocarbon is rectified, the product still contains a certain amount of water, so that the product index is low, and the product quality is affected; therefore, the mixed hydrocarbon needs to be dried again to improve the technical index of the mixed hydrocarbon product; the existing mixed hydrocarbon drying mode is single, and is mainly to carry out deep drying through a molecular sieve, such as Chinese patent application number: 202222993719.2A drying device for mixed hydrocarbon production is disclosed, wherein the right side molecular sieve frame body and the left side molecular sieve frame body are arranged in a staggered manner up and down in a drying tank, and flow in a baffling mode, so that water is absorbed by mixed hydrocarbon containing water vapor through the molecular sieve, when the mixed hydrocarbon contains a certain amount of water, the saturation rate of the molecular sieve is too high, the molecular sieve is too fast to fail, and the molecular sieve is relatively complex to regenerate, so that development of a device suitable for efficiently drying the mixed hydrocarbon is needed.
Disclosure of Invention
In order to solve the problems, the invention provides a drying device for mixed hydrocarbon production, which can deeply dehydrate and dry mixed hydrocarbon, has high drying efficiency and can improve the quality index of the mixed hydrocarbon product.
The drying device for mixed hydrocarbon production of the present invention comprises a chassis for carrying the whole drying device;
the liquefied pipe column assembly comprises a seat plate fixed on the underframe, two rows of pipe bodies with hollow bottom surfaces are integrally formed on the top surface of the seat plate, and necking sections are arranged at the bottoms of the pipe bodies; the bottom surface of the seat board is directly opposite to the necking section and is integrally provided with an extension part; a threaded through hole communicated with the pipe body is formed in the extension part; the lower part of one row of the pipe bodies is provided with an air inlet flange, and the lower part of the other row of the pipe bodies is provided with an air outlet flange; the air inlet flange is vertical to the axis of the pipe body, and the air outlet flange is upwards arranged and is inclined to the axis of the pipe body; the tops of the two rows of pipe bodies are communicated with each other and provided with transition flanges; the seat board is communicated with the bottom of the pipe body through a liquid discharge pipe, and an upper electromagnetic valve group and a lower electromagnetic valve group are arranged on the liquid discharge pipe; the gas inlet flange and the gas outlet flange are respectively connected to middle pipes with two closed ends, and the two middle pipes are connected in series to the mixed hydrocarbon conveying pipe; the inner side of the underframe is provided with a first liquid collecting tank and a second liquid collecting tank which are communicated with the bottoms of the two liquid discharging pipes;
the condenser tube array assembly comprises two rows of thin-wall tubes, the bottoms of the thin-wall tubes are fixedly sealed with sealing thread heads with conical front ends, and the sealing thread heads are screwed with the thread through holes; a long pipe body and a short pipe body are arranged on the inner side of the thin-wall pipe; the bottoms of the long pipe body and the short pipe body extend out of the bottoms of the sealing thread heads; a row of long pipe bodies are communicated with short pipe bodies of the adjacent thin-wall pipes; the other row of the long pipe bodies are connected to the liquid outlet end of the compression refrigerator through a collecting pipe, and the other row of the short pipe bodies are connected to the liquid return end of the compression refrigerator through a collecting pipe; the compression refrigerator sends the refrigerating fluid to the thin-wall pipe through the long pipe body to refrigerate the thin-wall pipe, then sends the refrigerating fluid to the long pipe body of the other thin-wall pipe through the short pipe body, and finally returns to the compression refrigerator through the short pipe body to form refrigeration cycle;
an atomization drying module comprising a pressure tube and an atomization assembly, wherein the pressure tube penetrates from the inside of the sealed threaded head to the outside of the thin-wall tube; the atomizing assembly comprises a ring seat sleeved and fixed at the middle lower part of the thin-wall pipe, and a flow passage is arranged at the inner side of the ring seat; the flow passage is an annular groove formed in the inner side of the ring seat or an annular pipe fixed to the inner side of the ring seat; a plurality of atomizing spray heads are horizontally and/or upwards arranged in the circumferential direction of the ring seat; the atomizing nozzle is communicated with the flow channel and is horizontally or upwards arranged; one end of the pressure pipe is communicated and fixed with the flow passage, and the other end of the pressure pipe is connected to a pressure pump which is communicated with a triethylene glycol liquid storage tank arranged on the inner side of the underframe; the triethylene glycol liquid storage tank sends triethylene glycol into a flow channel through a pressure pump, and the triethylene glycol is atomized through a pressurized atomizing nozzle, so that a triethylene glycol atomizing wall is formed in the pipe body;
the adsorbent online replacement module is communicated between the two rows of transition flanges; the two rows of transition flanges are communicated into a whole through the adsorbent on-line replacement module.
Further, the adsorbent online replacement module comprises an adsorbent drying module and an adsorbent recovery module; the adsorbent drying module comprises a screw body, wherein the screw body comprises a feeding buffer pipe section, an adsorption drying pipe section and a discharging section; the two rows of transition flanges are communicated with the adsorption drying pipe section; a transmission screw is arranged on the inner side of the screw body; one end of the transmission screw extends out of the end part of the screw body through a bearing and is connected with the feeding motor through a coupler; the other end of the screw cylinder body is closed; the screw body is communicated with the adsorbent particle storage hopper at the top of the feeding buffer pipe section through a flange; a discharge pipe is communicated with the discharge section; the adsorbent recovery module comprises a hanging plate, wherein a collecting bin is fixed at the bottom of the hanging plate and is hung between two calandria bodies through the hanging plate; a drawing box is arranged on the inner side of the collecting bin; a blanking flange is arranged at the top of the hanging plate; the discharging pipe is connected with the discharging flange through the discharging electromagnetic valve group. When the adsorbent is adsorbed by the online replacement module, the adsorbent particle storage hopper sends adsorbent particles into a feeding buffer pipe section of the screw body through blanking, then the feeding motor acts, the transmission screw is driven to rotate through the coupler, when the transmission screw rotates, the adsorbent particles in the feeding buffer pipe section are sent into an adsorption drying pipe section, at the moment, the blanking electromagnetic valve group is closed, then mixed hydrocarbon is sent into the adsorption drying pipe section through the transition flange and contacted with the adsorbent particles, and water vapor in the mixed hydrocarbon is absorbed by the adsorbent and is led out through the transition flange of the other row after the absorption is completed; when the adsorbent particles need to be replaced, the adsorbent particles of the adsorbent particle storage hopper are sent to the feeding buffer tube section of the screw body again, then the transmission screw is driven to rotate, the adsorbent particles of the feeding buffer tube section are sent to the adsorption drying tube section, and meanwhile, the absorbent particles with moisture absorption are sent to the discharging section and are sent to the drawing box of the collecting bin through the discharging tube of the discharging section; and regularly withdrawing the drawing box to heat and activate the adsorbent.
Still further, be provided with feeding screw rod module or blanking solenoid valve group between spiral shell body and the adsorbent granule storage hopper, the adsorbent granule passes through vibration blanking or screw rod spiral department and transmits the blanking.
Further, the adsorbent on-line replacement module comprises a long pipe section, the two ends of the long pipe section are integrally provided with expanded pipe sections, the inner sides of the two expanded pipe sections are fixedly provided with cylinder blocks through sealing plates, the upper side and the lower side of the middle part of the long pipe section are provided with transfer pipes, and the transfer pipes are communicated with two rows of transition flanges through hoses; the upper part of one side of the long pipe section is provided with a particle feeding flange communicated with an adsorbent particle storage hopper; the long pipe section is provided with a discharge pipe at the lower part of the other side of the transfer pipe; the discharge pipe is communicated with the adsorbent recovery module; a long plunger fixed with a cylinder body piston rod is arranged on the inner side of the long pipe section, and a rubber body sealed with the inner part of the long pipe section is arranged on the outer part of the long plunger; when the adsorbent is adsorbed by the online replacement module, the two long plungers are driven by the piston rod of the cylinder body to be separated from the transfer pipes, the adsorption drying agent is pressed into the long pipe sections between the transfer pipes, meanwhile, the long plungers seal the particle feeding flange and the discharge pipe, the two groups of transition flanges are connected with the transfer pipes, and by utilizing gaps of adsorption drying particles, mixed hydrocarbon can enter the other row of transition flanges from one row of transition flanges through adsorption drying particles, and when the mixed hydrocarbon contacts the adsorbent, moisture is absorbed by the mixed hydrocarbon; when the adsorbent is replaced on line and the online replacement module is replaced on line, a cylinder block piston rod on one side of the particle feeding flange is retracted, the long plunger is driven to be separated from the particle feeding flange, the particle feeding flange feeds adsorbent blanking into a long pipe section in a screw compression feeding or vibration mode, then the retracted cylinder block piston rod extends out, the long plunger is driven to move the adsorbent to one side of the transfer pipe, the adsorbent is compressed to the original adsorbent, the other cylinder block piston rod is retracted, the long plunger is separated from the discharge pipe, the new adsorbent extrudes a moisture-absorbing adsorbent space, and the moisture-absorbing adsorbent enters the discharge pipe; the new adsorbent enters the adsorption drying space.
Further, the filter screen body is fixed at the transition flange of the online adsorbent replacing module, and the filter screen body can protect the adsorbent from overflowing and enable mixed hydrocarbon to normally enter the online adsorbent replacing module.
Further, the two rows of transition flanges are respectively connected to the adsorbent on-line replacement module, the two rows of transition flanges respectively and independently feed the mixed hydrocarbon into the two rows of pipe bodies in a one-to-one correspondence manner, or are connected to the adsorbent on-line replacement module through the transfer pipe 91, the number of openings of the adsorbent on-line replacement module can be reduced through the transfer pipe, and the mixed hydrocarbon in one pipe body is fed into the other pipe body by adopting a few openings.
Further, one end of each of the two rows of mixed hydrocarbon conveying pipes is connected to the distillation tower, and the other end of each of the two rows of mixed hydrocarbon conveying pipes is connected to the molecular sieve drying tower; an atomization nozzle is arranged at the top of the inner side of the distillation tower; the atomization spray head is connected to a second liquid collection tank through a reflux pump; the bottom of the distillation tower is connected to a triethylene glycol concentration kettle through a pipeline; and (3) during drying, recycling the triethylene glycol with a certain concentration in the second liquid collection tank, when recycling, enabling the mixed hydrocarbon to enter the top of the distillation tower, realizing atomization and evaporation of the triethylene glycol, sequentially absorbing the water content of the mixed hydrocarbon downwards, and finally, sending the saturated absorbed mixed hydrocarbon into a triethylene glycol concentration kettle for high-temperature heating, and concentrating and regenerating the triethylene glycol.
Compared with the prior art, the drying device for mixed hydrocarbon production can deeply dehydrate and dry mixed hydrocarbon, has high drying efficiency, and can improve the quality index of the mixed hydrocarbon product.
Drawings
Fig. 1 is a schematic view showing the overall structure of a drying apparatus according to embodiment 1 of the present invention.
Fig. 2 is a schematic view of a partial enlarged structure at a in fig. 1 according to the present invention.
FIG. 3 is a schematic view of the overall structure of the liquefaction train assembly of the present invention.
FIG. 4 is a schematic diagram of the structure of the adsorbent drying module according to the present invention.
FIG. 5 is a schematic diagram showing the connection structure of the adsorbent drying module and the adsorbent recovery module according to the present invention.
FIG. 6 is a schematic diagram showing an example of an on-line replacement module for an adsorbent according to example 2 of the present invention.
Fig. 7 is a schematic overall structure of embodiment 3 of the present invention.
Reference numerals: 1. the device comprises a bottom frame, 2, a seat plate, 3, a pipe body, 4, a necking section, 5, an extension part, 6, a threaded through hole, 7, an air inlet flange, 8, an air outlet flange, 9, a transition flange, 91, an adapter pipe, 92, a filter screen body, 10, a liquid discharge pipe, 11, an upper electromagnetic valve group, 12, a lower electromagnetic valve group, 13, an intermediate pipe, 14, a first liquid collecting tank, 15, a second liquid collecting tank, 16, a thin-wall pipe, 17, a sealing threaded head, 18, a long pipe body, 19, a short pipe body, 20, a compression refrigerator, 21, a pressure pipe, 22, a ring seat, 23, an atomization nozzle, 24, a pressure pump, 25, a triethylene glycol liquid storing tank, 26, an adsorbent online replacement module, 261 and a screw body, 2611, feed buffer tube sections, 2612, adsorption drying tube sections, 2613, discharge sections, 262, transfer screws, 263, feed motors, 264, flanges, 265, adsorbent particle storage hoppers, 2651, feed screw modules, 266, discharge tubes, 267, hanging plates, 2671, blanking flanges, 268, collection bins, 269, drawing boxes, 27, long tube sections, 271, expanded tube sections, 272, sealing plates, 273, cylinder blocks, 274, transfer tubes, 275, particle feed flanges, 276, discharge tubes, 277, cylinder blocks, 278, long plugs, 28, distillation columns, 281, atomizer heads, 282, reflux pumps, B, mixed hydrocarbon delivery tubes, C, triethylene glycol concentrating tanks.
Detailed Description
Example 1:
the drying apparatus for mixed hydrocarbon production as shown in fig. 1 to 3 comprises a chassis 1 for carrying the entire drying apparatus;
the liquefied pipe column assembly comprises a seat board 2 fixed on a bottom frame 1, wherein two rows of pipe bodies 3 with hollow bottom surfaces are integrally formed on the top surface of the seat board 2, and necking sections 4 are arranged at the bottoms of the pipe bodies 3; the bottom surface of the seat board 2 is directly opposite to the necking section 4 and is integrally provided with an extension part 5; a threaded through hole 6 communicated with the pipe body 3 is formed in the extension part 5; an air inlet flange 7 is arranged at the lower part of one row of the pipe bodies 3, and an air outlet flange 8 is arranged at the lower part of the other row of the pipe bodies 3; the air inlet flange 7 is vertical to the axis of the pipe body 3, and the air outlet flange 8 is upwards arranged and is inclined with the axis of the pipe body 3; the top parts of the two rows of the pipe bodies 3 are communicated with each other and provided with transition flanges 9; the seat board 2 is communicated with the bottom of the pipe body 3 through a liquid discharge pipe 10, and an upper electromagnetic valve group 11 and a lower electromagnetic valve group 12 are arranged on the liquid discharge pipe 10; the air inlet flange 7 and the air outlet flange 8 are respectively connected to middle pipes 13 with two closed ends, and the two middle pipes 13 are connected in series to a mixed hydrocarbon conveying pipe B; a first liquid collecting tank 14 and a second liquid collecting tank 15 which are communicated with the bottoms of the two liquid discharging pipes 10 are arranged on the inner side of the underframe 1;
the condenser tube array assembly comprises two rows of thin-wall tubes 16, a sealing thread head 17 with a conical front end is fixed at the bottom of the thin-wall tubes 16 in a sealing manner, and the sealing thread head 17 is screwed with the threaded through hole 6; a long pipe body 18 and a short pipe body 19 are arranged on the inner side of the thin-wall pipe 16; the bottoms of the long pipe body 18 and the short pipe body 19 extend out of the bottoms of the sealing thread heads 17; a row of said long tubular bodies 18 communicating with short tubular bodies 19 adjacent to said thin-walled tube 16; the other row of the long pipe bodies 18 is connected to the liquid outlet end of the compression refrigerator 20 through a collecting pipe, and the other row of the short pipe bodies 19 is connected to the liquid return end of the compression refrigerator 20 through a collecting pipe; the compression refrigerator 20 sends the refrigerant liquid to the thin-walled tube 16 through the long tube 18, refrigerates the thin-walled tube 16, then sends the refrigerant liquid to the long tube 18 of the other thin-walled tube 16 through the short tube 19, and finally returns to the compression refrigerator 20 through the short tube 19 to form a refrigeration cycle;
an atomization drying module comprising a pressure tube 21 and an atomization assembly, said pressure tube 21 penetrating from inside the sealing screw head 17 to outside the thin-walled tube 16; the atomizing assembly comprises a ring seat 22 sleeved and fixed at the middle lower part of the thin-wall pipe, and a flow channel is arranged at the inner side of the ring seat 22; the flow passage is an annular groove formed in the inner side of the ring seat or an annular pipe fixed to the inner side of the ring seat; the ring seat 22 is circumferentially horizontally and/or upwardly provided with a plurality of atomizing nozzles 23; the atomizing nozzle 23 is communicated with the flow channel, and the atomizing nozzle 23 is horizontally or upwards arranged; one end of the pressure pipe 21 is fixedly communicated with the flow passage, the other end of the pressure pipe is connected to the pressure pump 24, and the pressure pump 24 is communicated with the triethylene glycol liquid storage tank 25 arranged on the inner side of the underframe 1; the triethylene glycol liquid storage tank 25 sends triethylene glycol into a flow channel through the pressure pump 24, and atomizes the triethylene glycol through the pressurized atomizing nozzle, so that a triethylene glycol atomizing wall is formed in the pipe body 3;
the adsorbent online replacement module 26 is communicated between the two rows of transition flanges 9; the two rows of transition flanges 9 are communicated into a whole through an adsorbent online replacement module 26.
As shown in fig. 4 and 5, the adsorbent on-line replacement module 26 includes an adsorbent drying module and an adsorbent recovery module; the adsorbent drying module comprises a screw body 261, wherein the screw body 261 comprises a feeding buffer pipe section 2611, an adsorption drying pipe section 2612 and a discharging section 2613; two rows of transition flanges 9 are communicated with the adsorption drying pipe section 2612; a transmission screw 262 is arranged on the inner side of the screw body 261; one end of the transmission screw 262 extends out of the end part of the screw body 261 through a bearing and is connected with the feeding motor 263 through a coupler; the other end of the screw body 261 is closed; the screw body 261 is communicated with the adsorbent particle storage hopper 265 at the top of the feeding buffer tube section 2611 through a flange 264; a discharge pipe 266 is communicated with the discharge section 2613; the adsorbent recovery module comprises a hanging plate 267, a collecting bin 268 is fixed at the bottom of the hanging plate 267, and the collecting bin 268 is hung between two calandria bodies 3 through the hanging plate 267; a drawing box 269 is arranged on the inner side of the collecting bin 268; a blanking flange 2671 is arranged at the top of the hanging plate 267; the discharge pipe 266 is connected with a discharge flange 2671 through a discharge electromagnetic valve group. When the adsorbent is adsorbed by the online replacement module, the adsorbent particle storage hopper 265 sends adsorbent particles into the feed buffer tube section 2611 of the screw body 261 through blanking, then the feed motor 263 acts, the transmission screw 262 is driven to rotate through the coupler, when the transmission screw 262 rotates, the adsorbent particles in the feed buffer tube section 2611 are sent into the adsorption drying tube section 2612, at the moment, the blanking electromagnetic valve group is closed, then mixed hydrocarbon is sent into the adsorption drying tube section 2612 through the transition flange 9 and contacted with the adsorbent particles, and the water vapor in the mixed hydrocarbon is absorbed by the adsorbent and is led out through the transition flange 9 of the other row after the absorption is completed; when the adsorbent particles need to be replaced, the adsorbent particles of the adsorbent particle storage hopper 265 are again fed into the feed buffer tube section 2611 of the screw body 261, then the transfer screw 262 is driven to rotate, the adsorbent particles of the feed buffer tube section 2611 are fed into the adsorption drying tube section 2612, and at the same time, the moisture-absorbed adsorbent particles are fed into the discharge section 2613 and are fed into the drawing box 269 of the collecting bin 268 through the discharge tube 266 of the discharge section 2613; the adsorbent is activated by periodically withdrawing the draw box 269.
Wherein, be provided with feeding screw rod module 2651 or blanking solenoid valve group between screw body 261 and the adsorbent granule storage hopper 265, the adsorbent granule passes the blanking through vibration blanking or screw rod spiral department.
Example 2:
as shown in fig. 6, the on-line adsorbent replacing module 26 comprises a long pipe section 27, two ends of the long pipe section 27 are integrally provided with expanded pipe sections 271, the inner sides of the two expanded pipe sections 271 are fixed with cylinder blocks 273 through sealing plates 272, the upper side and the lower side of the middle part of the long pipe section 27 are provided with adapter pipes 274, and the adapter pipes 274 are communicated with two rows of transition flanges 9 through hoses; the long pipe section 27 is provided with a particle feeding flange 275 communicated with the adsorbent particle storage hopper at the upper part of one side of the adapter pipe 274; a discharge pipe 276 is arranged at the lower part of the other side of the long pipe section 27; the discharge tube 276 communicates with an adsorbent recovery module; a long plunger 278 fixed with a piston rod of the cylinder 273 is arranged on the inner side of the long tube section 27, and a rubber body sealed with the inner part of the long tube section 27 is arranged on the outer part of the long plunger 278; when the adsorbent is adsorbed by the online replacement module, the piston rod of the cylinder body 277 drives the two long plungers 278 to separate from the transfer pipes 274, the adsorption drying agent is pressed into the long pipe section 27 between the transfer pipes 274, meanwhile, the long plungers 278 seal the particle feeding flange 275 and the discharge pipe 276, the two groups of transition flanges 9 are connected with the transfer pipes 274, and by utilizing the gaps of adsorption drying particles, mixed hydrocarbon can enter the other row of transition flanges 9 from one row of transition flanges 9 through the adsorption drying particles, and when the mixed hydrocarbon contacts the adsorbent, the water is absorbed by the mixed hydrocarbon; when the adsorbent is replaced on line by the online replacement module 26, a cylinder 273 piston rod on one side of the particle feeding flange 275 is retracted, the long plunger 278 is driven to be separated from the particle feeding flange 275, the particle feeding flange 275 feeds the adsorbent to the long tube section 27 in a compression feeding or vibration mode through a screw, then the retracted cylinder 273 piston rod extends out, the long plunger 278 is driven to move the adsorbent to one side of the transfer tube, the other cylinder 273 piston rod is retracted while the adsorbent is pressed to the original adsorbent, the long plunger 278 is separated from the discharge tube 276, the new adsorbent extrudes the moisture-absorbing adsorbent space, and the moisture-absorbing adsorbent enters the discharge tube 276; the new adsorbent enters the adsorption drying space.
The filter screen 92 is fixed at the transition flange 9 of the online adsorbent replacing module 26, and the filter screen 92 can protect the adsorbent from overflowing and enable the mixed hydrocarbon to normally enter the online adsorbent replacing module 26.
Wherein, two rows of transition flanges 9 are connected to the online change module 26 of adsorbent respectively, and two rows of transition flanges 9 are respectively and independently send into two calandria body 3 with the mixed hydrocarbon one-to-one, or are connected to the online change module 26 of adsorbent through transfer pipe 91, can reduce the trompil quantity of online change module of adsorbent through transfer pipe 91, adopt few trompil realization to send into another calandria body 3 with the mixed hydrocarbon in the calandria body.
Example 3:
the drying apparatus for mixed hydrocarbon production shown in fig. 7, two rows of the mixed hydrocarbon transport pipes B are connected at one end to a distillation column 28 and at the other end to a molecular sieve drying column; an atomization nozzle 281 is arranged at the top of the inner side of the distillation tower 28; the atomization nozzle 281 is connected to the second liquid collection tank 15 through a reflux pump 282; the bottom of the distillation column 28 is connected to a triethylene glycol concentration kettle C through a pipeline; during drying, triethylene glycol with a certain concentration in the second liquid collecting tank 15 is recycled, mixed hydrocarbon enters the top of the distillation tower 28 during recycling, so that triethylene glycol atomization evaporation is realized, the water content of the mixed hydrocarbon is sequentially absorbed in a descending mode, finally, the saturated mixed hydrocarbon is absorbed and sent to the triethylene glycol concentration kettle C for high-temperature heating, triethylene glycol is concentrated and regenerated, and the molecular sieve drying tower is used as a drying protective wall at the tail end, so that the drying effect of the mixed hydrocarbon is guaranteed, and meanwhile, the too fast failure of a molecular sieve is avoided.
The mixed hydrocarbon drying process is as follows:
firstly, starting a compression refrigerator to work and entering a to-be-worked state, wherein refrigerating fluid respectively enters two rows of thin-wall pipes through a circulation system of the compression refrigerator, so that cold energy is fed to the pipe walls of the thin-wall pipes;
then, deep drying is carried out once, mixed hydrocarbon is shunted to each air inlet flange through an intermediate pipe and enters a first calandria body, the calandria body and the thin-wall pipe can be closely designed, so that thin-film contact liquefaction is carried out, liquefiable components and water vapor in the mixed hydrocarbon are fully condensed and liquefied to form fogdrops, and the fogdrops drop to the bottom along the thin-wall pipe, so that the deep condensation drying is carried out once to remove most of water; the liquid is sent to the first liquid collecting tank through a liquid discharge pipe, and an electromagnetic valve group and a lower electromagnetic valve group on the liquid discharge pipe are opened and closed in a staggered mode, so that the pipe body is always in a closed state;
then, contact drying is carried out, the mixed hydrocarbon after the primary deep drying enters an adsorbent online replacement module through a transition flange, the mixed hydrocarbon is subjected to contact drying through the adsorbents such as silica gel, alumina, active carbon and the like in the adsorbent online replacement module, when the mixed hydrocarbon passes through the adsorbent, the moisture in the mixed hydrocarbon is absorbed again through the adsorbent, and the adsorbent (dryer agent) can be replaced frequently by the adsorbent online replacement module, so that the adsorbent online replacement module can always be in a high-efficiency absorption state for the moisture;
secondly, deep drying is carried out, the mixed hydrocarbon after the adsorption drying is completed enters another calandria body through a transition flange, the mixed hydrocarbon entering the pipe body is still in a refrigerating state through a thin-wall pipe, so that potential water vapor in the mixed hydrocarbon is still deeply liquefied, meanwhile, a pressure pump continuously pumps out the triethylene glycol in a triethylene glycol liquid storage tank and sends the triethylene glycol into a pressure pipe, the triethylene glycol in the pressure pipe is pressurized and sent into a flow passage, the triethylene glycol is thinned into a nano fogdrop state through an atomizing nozzle on the flow passage, when the mixed hydrocarbon descends, the triethylene glycol foggy wall formed by the atomizing nozzle is needed, the mixed hydrocarbon is fully absorbed by the mixed hydrocarbon, and after the absorption is completed, the mixed hydrocarbon absorption liquid enters a second liquid collecting tank through an electromagnetic valve group and a lower electromagnetic valve group of the liquid discharge pipe; the method comprises the following steps: the flow direction of the refrigerating fluid flows from the pipe body at one side of the air outlet flange to the pipe body at one side of the air inlet flange, so that the mixed hydrocarbon deeply dried for the first time is primarily liquefied, then enters the pipe body deeply dried for the second time with better refrigerating effect, potential water vapor in the mixed hydrocarbon is deeply liquefied again through the refrigerating fluid in the pipe body, when the liquefied fog drops are contacted with the nanometer fog drops of triethylene glycol, the liquefied fog drops are fully absorbed by the high water absorption of the triethylene glycol, and the secondary deep drying is completed;
finally, the mixed hydrocarbon is dried and combined, and the mixed hydrocarbon with the secondary deep drying is integrated into a mixed hydrocarbon conveying pipe.
In still another embodiment, the mixed hydrocarbon is first distilled at a preliminary high temperature through a distillation tower, while the mixed hydrocarbon is distilled, triethylene glycol with a certain concentration in a second liquid collection tank is pumped into the top of the inner side of the distillation tower by a reflux pump, as the boiling point of the triethylene glycol is far higher than the distillation temperature, and triethylene glycol mixed liquid is pressurized to form nano-grade fog drops, the nano-grade fog drops are heated at a high temperature, so that the moisture in the triethylene glycol can be converted into a vapor state from a liquid state, the vapor state moisture is mixed with the moisture evaporated by the mixed hydrocarbon, finally, the vapor state moisture is synchronously taken out of the distillation tower, the vapor state moisture is condensed by condensing equipment outside the distillation tower, the triethylene glycol of the nano-grade fog drops quickly evaporates the vapor state moisture, the evaporated moisture ascends, the liquid triethylene glycol fog drops downwards under the action of gravity, the triethylene glycol is evaporated and concentrated, and the high-concentration triethylene glycol fog drops continuously absorb and dry the mixed hydrocarbon from top to bottom; and because of the gravity factor, the water content of the mixed hydrocarbon at the lower part of the distillation tower is greater than that at the upper part, so when the triethylene glycol goes down, the drying efficiency of the mixed hydrocarbon at the upper part of the distillation tower can be improved, meanwhile, the triethylene glycol can efficiently absorb and take away the water content of the mixed hydrocarbon at the lower part of the distillation tower, and the diluted triethylene glycol at the bottom of the distillation tower is sent into a triethylene glycol regeneration system for concentration and recycling.
The above embodiments are merely preferred embodiments of the present invention, and all changes and modifications that come within the meaning and range of equivalency of the structures, features and principles of the invention are therefore intended to be embraced therein.

Claims (5)

1. A drying apparatus for mixed hydrocarbon production, comprising:
a chassis;
the liquefied pipe column assembly comprises a seat plate fixed on the underframe, two rows of pipe bodies with hollow bottom surfaces are integrally formed on the top surface of the seat plate, and necking sections are arranged at the bottoms of the pipe bodies; the bottom surface of the seat board is directly opposite to the necking section and is integrally provided with an extension part; a threaded through hole communicated with the pipe body is formed in the extension part; the lower part of one row of the pipe bodies is provided with an air inlet flange, and the lower part of the other row of the pipe bodies is provided with an air outlet flange; the air inlet flange is vertical to the axis of the pipe body, and the air outlet flange is upwards arranged and is inclined to the axis of the pipe body; the tops of the two rows of pipe bodies are communicated with each other and provided with transition flanges; the seat board is communicated with the bottom of the pipe body through a liquid discharge pipe, and an upper electromagnetic valve group and a lower electromagnetic valve group are arranged on the liquid discharge pipe; the gas inlet flange and the gas outlet flange are respectively connected to middle pipes with two closed ends, and the two middle pipes are connected in series to the mixed hydrocarbon conveying pipe; the inner side of the underframe is provided with a first liquid collecting tank and a second liquid collecting tank which are communicated with the bottoms of the two liquid discharging pipes;
the condenser tube array assembly comprises two rows of thin-wall tubes, the bottoms of the thin-wall tubes are fixedly sealed with sealing thread heads with conical front ends, and the sealing thread heads are screwed with the thread through holes; a long pipe body and a short pipe body are arranged on the inner side of the thin-wall pipe; the bottoms of the long pipe body and the short pipe body extend out of the bottoms of the sealing thread heads; a row of long pipe bodies are communicated with short pipe bodies of the adjacent thin-wall pipes; the other row of the long pipe bodies are connected to the liquid outlet end of the compression refrigerator through a collecting pipe, and the other row of the short pipe bodies are connected to the liquid return end of the compression refrigerator through a collecting pipe;
an atomization drying module comprising a pressure tube and an atomization assembly, wherein the pressure tube penetrates from the inside of the sealed threaded head to the outside of the thin-wall tube; the atomizing assembly comprises a ring seat sleeved and fixed at the middle lower part of the thin-wall pipe, and a flow passage is arranged at the inner side of the ring seat; the flow passage is an annular groove formed in the inner side of the ring seat or an annular pipe fixed to the inner side of the ring seat; a plurality of atomizing spray heads are horizontally and/or upwards arranged in the circumferential direction of the ring seat; the atomizing nozzle is communicated with the flow channel and is horizontally or upwards arranged; one end of the pressure pipe is communicated and fixed with the flow passage, and the other end of the pressure pipe is connected to a pressure pump which is communicated with a triethylene glycol liquid storage tank arranged on the inner side of the underframe;
the adsorbent online replacement module is communicated between the two rows of transition flanges;
the adsorbent online replacement module comprises an adsorbent drying module and an adsorbent recovery module; the adsorbent drying module comprises a screw body, wherein the screw body comprises a feeding buffer pipe section, an adsorption drying pipe section and a discharging section; the two rows of transition flanges are communicated with the adsorption drying pipe section; a transmission screw is arranged on the inner side of the screw body; one end of the transmission screw extends out of the end part of the screw body through a bearing and is connected with the feeding motor through a coupler; the other end of the screw cylinder body is closed; the screw body is communicated with the adsorbent particle storage hopper at the top of the feeding buffer pipe section through a flange; a discharge pipe is communicated with the discharge section; the adsorbent recovery module comprises a hanging plate, wherein a collecting bin is fixed at the bottom of the hanging plate and is hung between two calandria bodies through the hanging plate; a drawing box is arranged on the inner side of the collecting bin; a blanking flange is arranged at the top of the hanging plate; the discharging pipe is connected with the discharging flange through a discharging electromagnetic valve group;
a feeding screw module or a blanking electromagnetic valve group is arranged between the screw body and the adsorbent particle storage hopper.
2. The drying apparatus for mixed hydrocarbon production according to claim 1, wherein: the adsorbent online replacement module comprises a long pipe section, the two ends of the long pipe section are integrally provided with expanded pipe sections, the inner sides of the two expanded pipe sections are fixed with cylinder blocks through sealing plates, the upper side and the lower side of the middle part of the long pipe section are provided with transfer pipes, and the transfer pipes are communicated with two rows of transition flanges through hoses; the upper part of one side of the long pipe section is provided with a particle feeding flange communicated with an adsorbent particle storage hopper; the long pipe section is provided with a discharge pipe at the lower part of the other side of the transfer pipe; the discharge pipe is communicated with the adsorbent recovery module; the inner side of the long pipe section is provided with a long plunger fixed with a cylinder body piston rod, and the outer part of the long plunger is provided with a rubber body sealed with the inner part of the long pipe section.
3. The drying apparatus for mixed hydrocarbon production according to claim 1, wherein: the filter screen body is fixed at the transition flange of the adsorbent online replacement module.
4. The drying apparatus for mixed hydrocarbon production according to claim 1, wherein: the two rows of transition flanges are respectively connected to the adsorbent on-line replacement module or connected to the adsorbent on-line replacement module through the transfer pipe.
5. The drying apparatus for mixed hydrocarbon production according to claim 1, wherein: one end of each of the two rows of mixed hydrocarbon conveying pipes is connected to the distillation tower, and the other end of each of the two rows of mixed hydrocarbon conveying pipes is connected to the molecular sieve drying tower; an atomization nozzle is arranged at the top of the inner side of the distillation tower; the atomization spray head is connected to a second liquid collection tank through a reflux pump; the bottom of the distillation tower is connected to a triethylene glycol concentration kettle through a pipeline.
CN202310727566.3A 2023-06-20 2023-06-20 Drying device for mixed hydrocarbon production Active CN116440664B (en)

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CN205361002U (en) * 2016-02-23 2016-07-06 胜利德润能源股份有限公司 A drying device for hydrocarbon mixture production
CN210993636U (en) * 2019-10-22 2020-07-14 江苏斯尔邦石化有限公司 Regeneration energy-saving device for gas phase dryer of MTO device

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TWI547305B (en) * 2014-12-18 2016-09-01 財團法人工業技術研究院 Hollow fiber adsorbent compressed dry air system

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CN205361002U (en) * 2016-02-23 2016-07-06 胜利德润能源股份有限公司 A drying device for hydrocarbon mixture production
CN210993636U (en) * 2019-10-22 2020-07-14 江苏斯尔邦石化有限公司 Regeneration energy-saving device for gas phase dryer of MTO device

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