CN115501736B - CO for improving methanol recovery effect 2 Tail gas washing tower - Google Patents
CO for improving methanol recovery effect 2 Tail gas washing tower Download PDFInfo
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- CN115501736B CN115501736B CN202211083185.8A CN202211083185A CN115501736B CN 115501736 B CN115501736 B CN 115501736B CN 202211083185 A CN202211083185 A CN 202211083185A CN 115501736 B CN115501736 B CN 115501736B
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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
- B01D53/14—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
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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
- B01D53/14—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
- B01D53/1406—Multiple stage absorption
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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
- B01D53/14—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
- B01D53/1456—Removing acid components
- B01D53/1475—Removing carbon dioxide
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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
- B01D53/14—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
- B01D53/1487—Removing organic compounds
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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
- B01D53/14—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
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/74—Separation; Purification; Use of additives, e.g. for stabilisation
- C07C29/76—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment
Abstract
The invention discloses a CO for improving the recovery effect of methanol 2 The tail gas washing tower comprises a tower body, the tower body is equipped with two sets of, tower body lateral wall upper portion is equipped with the inlet tube, and the tower body lateral wall is equipped with the intake pipe, and the tower body top surface is equipped with the outlet duct, and the tower body bottom surface is equipped with the outlet pipe, the inlet tube is equipped with desalted water pipe intercommunication with the tower body outside, the intake pipe communicates with the tail gas pipe that the tower body outside was equipped with, and a set of intake pipe and the CO that the tower body outside was equipped with 2 The two groups of towers are connected in parallel through the air inlet pipe and the water inlet pipe, and valves are arranged in the water inlet pipe, the air outlet pipe and the water outlet pipe.
Description
Technical Field
The invention relates to the technical field of tail gas treatment, in particular to a method for treating tail gasCO for improving methanol recovery effect 2 And (5) a tail gas washing tower.
Background
The water scrubber is a tower type device for removing useless components or solid particles in gas by using water, and the working principle is similar to the washing process, so the water scrubber is widely applied to the aspects of industrial waste gas, dust removal and the like, the purifying effect is good, and most factories use the water scrubber to recycle methanol in tail gas.
In order to control the methanol washing tail gas emission index, the emission value is strictly controlled within the national index range, and when the water washing tower is started and stopped, the operation of the whole process system of the factory is not influenced, so that the loss cost caused by the start and stop of the water washing tower is saved. Therefore, there is a need to design a process for improving the recovery effect of CO from methanol 2 And the tail gas water scrubber reduces the emission of tail gas pollutants.
Disclosure of Invention
In order to solve the technical problems, the invention provides a CO for improving the recovery effect of methanol 2 And (5) a tail gas washing tower.
The technical scheme of the invention is as follows: CO for improving methanol recovery effect 2 The tail gas washing tower comprises a tower body, wherein the tower body is provided with two groups;
the upper part of the side wall of the tower body is provided with a water inlet pipe, the lower part of the side wall of the tower body is provided with an air inlet pipe, the top surface of the tower body is provided with an air outlet pipe, and the bottom surface of the tower body is provided with an air outlet pipe;
two groups of water inlet pipes are communicated with desalted water pipes arranged on the outer side of the tower body, two groups of air inlet pipes are communicated with tail gas pipes arranged on the outer side of the tower body, and one group of air inlet pipes are communicated with CO arranged on the outer side of the tower body 2 The pipes are communicated;
valves are arranged in the water inlet pipe, the air outlet pipe and the water outlet pipe, and tail gas and CO are separated by utilizing the opportunity of early maintenance 2 And the valve is pre-installed on the pipeline such as desalted water, and after one group of water washing towers are installed, washed and debugged, the other group of water washing towers are connected into the first group of water washing tower system, so that the cost of starting and stopping the water washing towers is saved.
Further, a plurality of groups for increasing the air are arranged in the middle of the inner wall of the tower bodyFloat valve plates for liquid mixing time, a plurality of groups of float valve plates are arranged at equal intervals up and down, and are fixedly connected with the inner wall of the tower body, and desalted water and CO are caused by arranging a plurality of groups of float valve plates 2 The contact time of the tail gas is longer, and the recovery effect of the methanol is improved.
Further, a transmission assembly and a spraying assembly are arranged in the tower body;
the transmission assembly comprises a first rotating shaft, the first rotating shaft is arranged in the tower body below the floating valve disc along the length direction of the tower body, one end of the first rotating shaft penetrates through the bottom of the tower body and is provided with a driving piece, the other end of the first rotating shaft is provided with a first gear, the first rotating shaft is in rotary sealing connection with the bottom of the tower body, a rotating disc is arranged in the tower body below the floating valve disc along the length direction of the tower body, one end of the rotating disc is provided with a connecting piece fixedly connected with the inner wall of the tower body, and the other end of the rotating disc is provided with a toothed ring meshed with the first gear for transmission;
the floating valve disc is provided with a plurality of groups of openings for gas to pass through, and the floating valve disc positioned at the openings is provided with a plurality of groups of floating valves which are in sliding connection with the floating valve disc;
the inner wall of the tower body between the floating valve disc and the rotating disc is provided with a net disc for pushing up the floating valve to open an opening, the net disc is in sliding connection with the inner wall of the tower body, the side wall of the rotating disc is provided with a push plate for pushing the net disc, and the push plate intermittently pushes up the net disc along with the rotation of the rotating disc, so that the floating valve on the lowest group of floating valve discs is completely pushed up, and gas uniformly passes through the lowest group of floating valve discs;
the spraying assembly comprises a first liquid spraying pipe and a second liquid spraying pipe, the first liquid spraying pipe is arranged on the rotating disc between the connecting piece and the toothed ring, and one end of the first liquid spraying pipe penetrates through the rotating disc;
the second hydrojet pipe sets up at the tower body inner wall of floating valve disc top and with tower body inner wall fixed connection, the first hydrojet pipe other end is equipped with rather than rotary seal's connecting pipe, connecting pipe one end and first hydrojet pipe intercommunication and rotary seal, the connecting pipe other end runs through net dish, floating valve disc and second hydrojet pipe intercommunication, connecting pipe middle part and inlet tube intercommunication, and connecting pipe and tower body inner wall rotate and be connected, through above setting for first hydrojet pipe can be along with the rotating disk in the tower body rotation, makes the scope that the desalted water sprayed in the tower body wider, makes the effect of gas-liquid contact better.
Further, the driving piece is the motor, motor output shaft and first rotation axis fixed connection, motor pass through connecting rod and tower body bottom surface fixed connection, the tower body bottom is equipped with four sets of support pieces, sets up support piece and is used for steadily placing the tower body to lift the tower body, drive through the motor, use manpower sparingly.
Further, the first hydrojet pipe is equipped with two sets of, and two sets of first hydrojet pipes are central symmetry with the centre of a circle of rolling disc and set up on the rolling disc, and two sets of first hydrojet pipe one end are intercommunication each other, and two sets of first hydrojet pipe other ends are intercommunication each other, the junction rotary seal of connecting pipe one end and two sets of first hydrojet pipe other ends is connected, through setting up two sets of first hydrojet pipes, increases the effect of gas-liquid contact, further improves the rate of recovery of methyl alcohol.
Further, the first liquid spraying pipe and the second liquid spraying pipe are respectively provided with a plurality of groups of liquid spraying heads, so that desalted water is sprayed more uniformly.
Further, be equipped with the defogging net in the tower body that is located the second hydrojet pipe, be equipped with the defogging dish in the tower body that is located the rolling disc below, first rotation axis one end runs through the defogging dish, and the defogging net is got rid of the mist that gas had after the processing, and the defogging dish is got rid of the foam that the desalted water produced.
Further, a circulating assembly is arranged in the tower body and comprises a water pipe, a piston pipe and a second rotating shaft;
one end of the water pipe is communicated with the connecting pipe, the other end of the water pipe penetrates through the foam removing disc, a first one-way valve for feeding water into the water pipe and a second one-way valve for feeding water into the connecting pipe are respectively arranged at the lower part and the upper part of the inner wall of the water pipe, the piston pipe is arranged above the foam removing disc, one end of the piston pipe is communicated with the side wall of the water pipe, and a piston is arranged in the piston pipe;
be located and be equipped with the second gear on the first rotation axis of defoaming dish top, the second rotation axis sets up in the tower of defoaming dish top along the horizontal direction, and second rotation axis one end is equipped with and meshes driven third gear with the second gear, and the second rotation axis other end is equipped with the coupling assembling that is used for the piston to remove in the piston tube, and the tower body bottom is equipped with the bracing piece that is used for supporting the second rotation axis, bracing piece one end runs through defoaming dish and second rotation axis rotation to be connected, through above setting, can send the desalted water of tower body bottom to spray in the subassembly, reuse.
Further, coupling assembling includes first connecting plate and second connecting plate, first connecting plate one end and second rotation axis other end fixed connection, the first connecting plate other end with second connecting plate one end rotates to be connected, and the second connecting plate other end rotates with the piston to be connected, through above setting, when spraying the subassembly work, can drive the piston to remove in the desalted water suction connecting pipe in with the tower in step.
Further, a control sleeve is arranged in the middle of the first liquid spraying pipe, the control sleeve is in sliding sealing connection with the first liquid spraying pipe, a plurality of groups of strip-shaped liquid outlet holes are formed in the middle of the first liquid spraying pipe at equal intervals, round holes corresponding to the strip-shaped liquid outlet holes in one-to-one correspondence are formed in the control sleeve, and one end of the control sleeve is connected with a baffle ring arranged on the first liquid spraying pipe through a first spring;
a plurality of groups of push blocks are arranged on one side of the rotating disc along the horizontal direction, the push blocks penetrate through the rotating disc through a trigger rod arranged on the push blocks, and a second spring is sleeved on the trigger rod between the push blocks and the rotating disc;
the other side surface of the rotating disc is provided with a trigger plate along the vertical direction, the trigger plate is fixedly connected with the other end of the control sleeve, the push block is arranged at equal angles around the center of the rotating disc, a fixed rod is arranged at the same axis with the connecting piece, one end of the fixed rod penetrates through the communicating position of the other ends of the two groups of first liquid spraying pipes and is fixedly connected with the inner wall of the connecting pipe, the fixed rod is rotationally and hermetically connected with the communicating position of the other ends of the two groups of first liquid spraying pipes, the other end of the fixed rod is provided with a push rod for pushing the push block to move the trigger plate, trigger plate and connecting piece sliding connection are through above setting for the push rod can promote the trigger plate intermittently and carry out horizontal movement, and resets through backing ring and first spring, thereby makes the relative first hydrojet pipe of control sleeve pipe move, and control round hole and bar play liquid hole's relative position, and then makes out liquid position and carries out horizontal movement, improves the hydrojet effect, simultaneously, control sleeve pipe still can control and scrape the bar play liquid hole of sweeping first hydrojet pipe, avoids bar play liquid hole to block up.
The beneficial effects of the invention are as follows:
(1) According to the invention, the two groups of water washing towers which are connected in parallel are communicated with the desalting water pipe and the tail gas pipe, when one group of water washing towers is stopped, the other group of water washing towers are started, and the operation of the whole process system of a factory is not influenced, so that the loss cost caused by starting and stopping the water washing towers is saved.
(2) The invention sets spraying components and transmission components, and desalted water, tail gas and CO in the second liquid spraying pipe 2 Fully contacting in a plurality of groups of float valve discs to absorb methanol, and rotating the liquid spraying pipe to spray liquid so as to ensure desalted water, tail gas and CO 2 The contact range is wider, and the absorption effect of methanol is improved.
(3) The invention is provided with the net disk, the push plate and other components, and the push plate on the rotating disk intermittently pushes the net disk to move upwards while the first liquid spraying pipe rotates to spray liquid, so that the floating valve on the floating valve disk is completely pushed upwards, thereby enabling tail gas and CO to be discharged 2 Evenly flows into a plurality of groups of float valve discs.
(4) According to the invention, the circulating assembly is arranged, and the transmission assembly drives the liquid spraying assembly to work, and meanwhile, desalted water at the bottom of the tower body is conveyed into the liquid spraying assembly, so that the desalted water can be recycled, and the consumption of desalted water is reduced.
(5) According to the invention, by arranging the control sleeve, the trigger plate and other components, the push rod can intermittently push the trigger plate to perform horizontal movement, and the baffle ring and the first spring are used for resetting, so that the control sleeve moves relative to the first liquid spraying pipe, the liquid outlet position is further horizontally moved, the liquid spraying effect is improved, and meanwhile, the control sleeve can scrape the strip-shaped liquid outlet hole of the first liquid spraying pipe left and right, and the blockage of the strip-shaped liquid outlet hole is avoided.
Drawings
FIG. 1 is a schematic diagram of the piping connection flow of the scrubber of the present invention;
FIG. 2 is a schematic view of the appearance of the tower of the present invention;
FIG. 3 is a schematic perspective view of the interior of the tower of the present invention;
FIG. 4 is a schematic plan view of the internal structure of the tower of the present invention;
FIG. 5 is a schematic illustration of the positional relationship of a float valve disk and a net disk of the present invention;
FIG. 6 is a schematic perspective view of a first liquid jet tube of the present invention;
FIG. 7 is a schematic perspective view of a circulation assembly of the present invention;
FIG. 8 is a schematic view of the construction of the circulation assembly of the present invention;
FIG. 9 is a schematic view of the structure of the connection assembly of the present invention;
FIG. 10 is a schematic perspective view of a control sleeve of the present invention;
FIG. 11 is a schematic view of the construction of the retainer ring of the present invention;
FIG. 12 is a schematic view of the positions of a circular hole and a strip-shaped liquid outlet hole according to the present invention;
wherein, 1-tower body, 11-water inlet pipe, 12-air inlet pipe, 13-air outlet pipe, 14-water outlet pipe, 15-desalting water pipe, 16-tail gas pipe, 17-float valve disk, 171-float valve, 18-net disk and 19-CO 2 The spray head comprises a pipe, a 2-transmission component, a 21-first rotating shaft, a 22-first gear, a 23-rotating disc, a 24-toothed ring, a 25-push plate, a 3-spraying component, a 31-first spraying pipe, a 32-second spraying pipe, a 33-connecting pipe, a 34-connecting piece, a 4-demisting net, a 5-demisting disc, a 6-circulating component, a 61-water pipe, a 62-piston pipe, a 621-piston, a 63-second rotating shaft, a 631-supporting rod, a 64-second gear, a 65-third gear, a 66-connecting component, a 661-first connecting plate, a 662-second connecting plate, a 7-motor, an 8-control sleeve, a 81-push rod, a 82-blocking ring, a 83-first spring, a 84-push block, a 85-triggering rod, a 86-second spring and a 87-triggering plate.
Detailed Description
The invention will be described in further detail with reference to the following embodiments to better embody the advantages of the invention.
Example 1: as shown in fig. 1, a CO for improving methanol recovery effect 2 The tail gas washing tower comprises a tower body 1, wherein the tower body 1 is provided with two groups;
the upper part of the side wall of the tower body 1 is provided with a water inlet pipe 11, the lower part of the side wall of the tower body 1 is provided with a gas inlet pipe 12, the top surface of the tower body 1 is provided with a gas outlet pipe 13, and the bottom surface of the tower body 1 is provided with a water outlet pipe 14;
two groups of water inlet pipes 11 are communicated with desalted water pipes 15 arranged on the outer side of the tower body 1, two groups of air inlet pipes 12 are communicated with tail gas pipes 16 arranged on the outer side of the tower body 1, and one group of air inlet pipes 12 are communicated with CO arranged on the outer side of the tower body 1 2 The pipe 19 is communicated;
valves are arranged in the water inlet pipe 11, the air inlet pipe 12, the air outlet pipe 13 and the water outlet pipe 14.
By arranging two groups of washing towers connected in parallel, the washing towers are connected with a desalted water pipe 15, a tail gas pipe 16 and CO 2 The pipe 19 is communicated, when one group of washing towers is stopped, the other group of washing towers is started, and the whole treatment system cannot stop running, so that the loss cost caused by starting and stopping the washing towers is saved;
the operation method of the two groups of washing towers is as follows:
the water inlet pipe 11 of a group of water washing towers is communicated with a desalted water pipe 15, the air inlet pipe 12 is communicated with a tail gas pipe 16, and the tail gas and CO are separated by utilizing the early maintenance opportunity 2 And pipeline such as desalted water is provided with a valve in advance, and the first group of CO is to be treated 2 After the tail gas water scrubber is installed, washed and debugged, the water inlet pipe 11 of the other group of water scrubber is communicated with the desalted water pipe 15, and the air inlet pipe 12 of the other group of water scrubber is communicated with the tail gas pipe 16 and CO 2 The pipe 19 is connected and connected to the whole system, and the washing and recovery of methanol are started.
Example 2: the embodiment is basically the same as embodiment 1, and is different from the embodiment in that, as shown in fig. 2 and 3, sixteen groups of floating valve discs 17 for increasing the mixing time of the gas and the liquid are arranged in the middle of the inner wall of the tower body 1, sixteen groups of floating valve discs 17 are arranged at equal intervals up and down, and the floating valve discs 17 are fixedly connected with the inner wall of the tower body 1;
a transmission assembly 2 and a spraying assembly 3 are arranged in the tower body 1;
as shown in fig. 4 and 5, the transmission assembly 2 includes a first rotation shaft 21, the first rotation shaft 21 is disposed in the tower body 1 below the float valve disc 17 along the length direction of the tower body 1, the lower end of the first rotation shaft 21 penetrates through the bottom of the tower body 1 and is provided with a driving member, the upper end of the first rotation shaft 21 is provided with a first gear 22, the first rotation shaft 21 is rotationally and hermetically connected with the bottom of the tower body 1, a rotation disc 23 is disposed in the tower body 1 below the float valve disc 17 along the length direction of the tower body 1, a connecting member 34 rotationally connected with the inner wall of the tower body 1 is disposed at the left end of the rotation disc 23, and a toothed ring 24 meshed with the first gear 22 is disposed at the right end of the rotation disc 23;
the spraying assembly 3 comprises a first liquid spraying pipe 31 and a second liquid spraying pipe 32, the first liquid spraying pipe 31 is arranged on the rotating disc 23 between the connecting piece 34 and the toothed ring 24, the first liquid spraying pipes 31 are provided with two groups, the two groups of first liquid spraying pipes 31 are arranged on the rotating disc 23 in a central symmetry mode with the center of the rotating disc 23, the left ends of the two groups of first liquid spraying pipes 31 are communicated with each other, the right ends of the two groups of first liquid spraying pipes 31 are communicated with each other, the lower ends of the connecting pipes 33 are in rotary sealing connection with the communicating parts of the right ends of the two groups of first liquid spraying pipes 31, and the left ends of the first liquid spraying pipes 31 penetrate through the rotating disc 23;
the second liquid spraying pipe 32 is arranged on the inner wall of the tower body 1 above the floating valve disc 17 and is fixedly connected with the inner wall of the tower body 1, the right end of the first liquid spraying pipe 31 is provided with a connecting pipe 33 which is rotationally sealed with the first liquid spraying pipe 31, the lower end of the connecting pipe 33 is communicated with the first liquid spraying pipe 31 and is rotationally sealed and connected with the second liquid spraying pipe 32, the upper end of the connecting pipe 33 penetrates through the net disc 18 and the floating valve disc 17 to be communicated with the second liquid spraying pipe 32, the middle part of the connecting pipe 33 is communicated with the water inlet pipe 11, the connecting pipe 33 is fixedly connected with the inner wall of the tower body 1, the first liquid spraying pipe 31 and the second liquid spraying pipe 32 are respectively provided with sixteen groups of liquid spraying heads, and a defogging net 4 is arranged in the tower body 1 above the second liquid spraying pipe 32;
the driving piece is a motor 7, an output shaft of the motor 7 is fixedly connected with a first rotating shaft 21, the motor 7 is fixedly connected with the bottom surface of the tower body 1 through a connecting rod, and four groups of supporting pieces are arranged at the bottom of the tower body 1;
as shown in fig. 6, the floating valve disc 17 is provided with sixty groups of openings for gas to pass through, and the floating valve disc 17 positioned at the openings is provided with sixty groups of floating valves 171 which are in sliding connection with the floating valve disc 17;
the inner wall of the tower body 1 between the floating valve disc 17 and the rotating disc 23 is provided with a net disc 18 for pushing up a floating valve 171 on the floating valve disc 17, the net disc 18 is in sliding connection with the inner wall of the tower body 1, and the side wall of the rotating disc 23 is provided with a push plate 25 for pushing the net disc 18;
as shown in fig. 7, a defoaming disc 5 is arranged in the tower body 1 below the rotating disc 23, and the lower end of the first rotating shaft 21 penetrates through the defoaming disc 5;
as shown in fig. 8 and 9, a circulation assembly 6 is disposed in the tower 1, and the circulation assembly 6 includes a water pipe 61, a piston pipe 62, and a second rotation shaft 63;
the upper end of the water pipe 61 is communicated with the connecting pipe 33, the lower end of the water pipe 61 penetrates through the foam removing disc 5, the lower part and the upper part of the inner wall of the water pipe 61 are respectively provided with a first one-way valve for feeding water to the water pipe 61 and a second one-way valve for feeding water to the connecting pipe 33, the piston pipe 62 is arranged above the foam removing disc 5, the upper end of the piston pipe 62 is communicated with the side wall of the water pipe 61, and a piston 621 is arranged in the piston pipe 62;
the first rotating shaft 21 above the defoaming disc 5 is provided with a second gear 64, the second rotating shaft 63 is arranged in the tower body 1 above the defoaming disc 5 along the horizontal direction, the left end of the second rotating shaft 63 is provided with a third gear 65 meshed with the second gear 64, the right end of the second rotating shaft 63 is provided with a connecting component 66 for the piston 621 to move in the piston tube 62, the bottom of the tower body 1 is provided with a supporting rod 631 for supporting the second rotating shaft 63, and one end of the supporting rod 631 penetrates through the defoaming disc 5 and is rotationally connected with the second rotating shaft 63.
The connecting assembly 66 comprises a first connecting plate 661 and a second connecting plate 662, wherein the lower end of the first connecting plate 661 is fixedly connected with the right end of the second rotating shaft 63, the upper end of the first connecting plate 661 is rotatably connected with the lower end of the second connecting plate 662, and the upper end of the second connecting plate 662 is rotatably connected with the piston 621;
the motor 7 is selected from a commercial rotating motor or is adjusted according to the shape of the commercial rotating motor to be adaptively installed in the device, and the desalted water, the tail gas and the CO in the second liquid spraying pipe 32 are realized by arranging components such as the spraying component 3, the transmission component 2 and the like 2 Fully contacted in sixteen groups of floating valve plates 17 to absorb methanol, and the first liquid spraying pipe 31 rotates to spray liquid so as to ensure desalted water, tail gas and CO 2 The contact range is wider, the absorption effect of methanol is improved, by arranging the net disk 18, the push plate 25 and other components, the push plate 25 on the rotating disk 23 intermittently pushes the net disk 18 to move upwards while the first liquid spraying pipe 31 rotates to spray liquid, so that the floating valve 171 on the floating valve disk 17 is completely pushed upwards, and tail gas and CO are further discharged 2 Evenly flows into sixteen groups of floating valve plates 17, and by arranging the circulating assembly 6, the transmission assembly 2 drives the liquid spraying assembly 3 to work and simultaneously sends desalted water at the bottom of the tower body 1 into the liquid spraying assembly 3, so that the desalted water can be reused, and the consumption of desalted water is reduced;
the method for operating the transmission assembly 2 and the spraying assembly 3 comprises the following steps:
firstly, valves of an air inlet pipe 12 and an air inlet pipe 11 are opened to enable tail gas and CO to be discharged 2 And desalted water is sent into the tower body 1, the motor 7 is started, and the tail gas and CO are discharged 2 Rising in the tower body 1, spraying desalted water through the liquid spraying heads on the first liquid spraying pipe 31 and the second liquid spraying pipe 32, simultaneously starting to rotate the first rotating shaft 21, driving the first gear 22 thereon to rotate, driving the toothed ring 24 to rotate by the first gear 22, driving the rotating disc 23 to rotate along with the toothed ring 24, driving the rotating disc 23 to rotate to spray liquid by two groups of first liquid spraying pipes 31, and rising tail gas and CO in the tower body 1 2 The first liquid spraying pipe 31 is contacted with desalted water for pre-washing, and the rotating disc 23 rotates to intermittently push the net disc 18 upwards to push the float valves 171 on the lowermost float valve disc 17 to make tail gas and CO 2 Evenly enter the upper floating valve disc 17, and the rising tail gas and CO 2 The float valve 171 is opened to slowly move upward through the opening, and desalted water and tail gas and CO are discharged from the second liquid discharge pipe 32 2 Fully contacting in sixteen groups of floating valve plates 17, accumulating the desalted water at the bottom of the tower body 1 after use, recycling the desalted water by using a circulating assembly 6, and opening a valve of a water outlet pipe 14 after treatment is finished so as to enable the desalted water to flow into the next working procedure;
the method of operation of the circulation assembly 6 comprises the following steps:
the first rotation shaft 21 rotates to drive the second gear 64 on the first rotation shaft to rotate, the second gear 64 drives the third gear 65 which is in meshed transmission with the second gear 64 to rotate, the third gear 65 drives the second rotation shaft 63 to rotate, the first connecting plate 661 follows the second rotation shaft 63 to rotate, the first connecting plate 661 drives the second connecting plate 662 to reciprocate up and down, the piston 621 follows the second connecting plate 662 to move up and down in the piston tube 62, when the piston 621 moves downwards, the first one-way valve for feeding water to the water tube 61 is opened, desalted water at the bottom of the tower body 1 enters the water tube 61, and when the piston 621 moves upwards, the second one-way valve is opened, so that desalted water in the water tube 61 enters the connecting tube 33, and the desalted water enters the spraying assembly 3 for recycling.
Example 3: the embodiment is basically the same as embodiment 2, except that, as shown in fig. 10, 11 and 12, a control sleeve 8 is disposed in the middle of the first liquid spraying pipe 31, the control sleeve 8 is in sliding and sealing connection with the first liquid spraying pipe 31, seven groups of strip-shaped liquid outlet holes are disposed in the middle of the first liquid spraying pipe 31 at equal intervals, round holes corresponding to the strip-shaped liquid outlet holes in one-to-one correspondence are disposed on the control sleeve 8, and the right end of the control sleeve 8 is connected with a baffle ring 82 disposed on the first liquid spraying pipe 31 through a first spring 83;
two groups of push blocks 84 are arranged on the right side of the rotating disc 23 along the horizontal direction, the push blocks 84 penetrate through the rotating disc 23 through a trigger rod 85 arranged on the push blocks, and a second spring 86 is sleeved on the trigger rod 85 between the push blocks 84 and the rotating disc 23;
the left surface of the rotating disc 23 is provided with a trigger plate 87 along the vertical direction, the trigger plate 87 is fixedly connected with the left end of the control sleeve 8, the push block 84 is arranged 180 degrees around the rotating disc 23 as the center of a circle, a fixed rod is arranged at the same axis with the connecting piece 34, the right end of the fixed rod penetrates through the communicating position of the right ends of the two groups of first liquid spraying pipes 31 and is fixedly connected with the inner wall of the connecting pipe 33, the fixed rod is rotationally and hermetically connected with the communicating position of the right ends of the two groups of first liquid spraying pipes 31, the left end of the fixed rod is provided with a push rod 81 for pushing the push block 84 to enable the trigger plate 87 to move, and the trigger plate 87 is in sliding connection with the connecting piece 34.
The method for controlling the operation of the sleeve 8 comprises the following steps:
when the push rod 81 contacts the push rod 84, the push rod 81 pushes the push rod 84 to move leftwards, the second spring 86 is compressed, the trigger rod 85 moves leftwards along with the push rod 84, the trigger plate 87 moves leftwards, the trigger plate 87 drives the control sleeve 8 to move leftwards, the first spring 83 is stretched, a round hole on the control sleeve 8 moves leftwards relative to a strip-shaped liquid outlet hole on the first liquid spraying pipe 31, when the push rod 81 is not contacted with the push rod 84, the first spring 83 and the second spring 86 rebound to drive the control sleeve 8 to move rightwards, the round hole on the control sleeve 8 moves relative to the strip-shaped liquid outlet Kong Xiangyou on the first liquid spraying pipe 31, the push rod 81 intermittently pushes the trigger plate 87 to move horizontally, and the relative movement of the control sleeve 8 to the first liquid spraying pipe 31 is realized through the baffle ring 82 and the first spring 83, the relative position of the round hole is controlled, the strip-shaped liquid outlet position is further horizontally moved, the effect is improved, and meanwhile, the control sleeve 8 also scrapes left and right the strip-shaped liquid outlet hole of the first liquid spraying pipe 31 is prevented from being blocked.
Claims (6)
1. CO for improving methanol recovery effect 2 The tail gas washing tower comprises a tower body (1), and is characterized in that the tower body (1) is provided with two groups;
the water inlet pipe (11) is arranged at the upper part of the side wall of the tower body (1), the air inlet pipe (12) is arranged at the lower part of the side wall of the tower body (1), the air outlet pipe (13) is arranged at the top surface of the tower body (1), and the water outlet pipe (14) is arranged at the bottom surface of the tower body (1);
two groups of water inlet pipes (11) are communicated with a desalting water pipe (15) arranged outside the tower body (1), two groups of air inlet pipes (12) are communicated with a tail gas pipe (16) arranged outside the tower body (1), and one group of air inlet pipes (12) are communicated with CO arranged outside the tower body (1) 2 The pipes (19) are communicated;
valves are arranged in the water inlet pipe (11), the air inlet pipe (12), the air outlet pipe (13) and the water outlet pipe (14);
a plurality of groups of floating valve plates (17) for increasing the mixing time of the gas and the liquid are arranged in the middle of the inner wall of the tower body (1), the plurality of groups of floating valve plates (17) are arranged at equal intervals up and down, the floating valve plates (17) are fixedly connected with the inner wall of the tower body (1), and a transmission assembly (2) and a spraying assembly (3) are arranged in the tower body (1);
the transmission assembly (2) comprises a first rotating shaft (21), the first rotating shaft (21) is arranged in the tower body (1) below the float valve disc (17) along the length direction of the tower body (1), one end of the first rotating shaft (21) penetrates through the bottom of the tower body (1) and is provided with a driving piece, the other end of the first rotating shaft (21) is provided with a first gear (22), the first rotating shaft (21) is in rotary sealing connection with the bottom of the tower body (1), a rotating disc (23) is arranged in the tower body (1) below the float valve disc (17) along the length direction of the tower body (1), one end of the rotating disc (23) is provided with a connecting piece (34) in rotary connection with the inner wall of the tower body (1), and the other end of the rotating disc (23) is provided with a toothed ring (24) in meshed transmission with the first gear (22).
A plurality of groups of openings for gas to pass through are formed in the floating valve disc (17), and a plurality of groups of floating valves (171) which are in sliding connection with the floating valve disc (17) are arranged on the floating valve disc (17) at the openings;
the inner wall of the tower body (1) between the floating valve disc (17) and the rotating disc (23) is provided with a net disc (18) for pushing the floating valve (171) upwards to open an opening, the net disc (18) is in sliding connection with the inner wall of the tower body (1), and the side wall of the rotating disc (23) is provided with a push plate (25) for pushing the net disc (18);
the spraying assembly (3) comprises a first liquid spraying pipe (31) and a second liquid spraying pipe (32), the first liquid spraying pipe (31) is arranged on the rotating disc (23) between the connecting piece (34) and the toothed ring (24), and one end of the first liquid spraying pipe (31) penetrates through the rotating disc (23);
the second liquid spraying pipe (32) is arranged on the inner wall of the tower body (1) above the floating valve disc (17) and is fixedly connected with the inner wall of the tower body (1), the other end of the first liquid spraying pipe (31) is provided with a connecting pipe (33), one end of the connecting pipe (33) is communicated with the first liquid spraying pipe (31) and is in rotary sealing connection, the other end of the connecting pipe (33) penetrates through the net disc (18), the floating valve disc (17) is communicated with the second liquid spraying pipe (32), the middle part of the connecting pipe (33) is communicated with the water inlet pipe (11), and the connecting pipe (33) is fixedly connected with the inner wall of the tower body (1);
the two groups of first liquid spraying pipes (31) are arranged on the rotating disc (23) in a central symmetry mode with the center of the rotating disc (23), one ends of the two groups of first liquid spraying pipes (31) are communicated with each other, the other ends of the two groups of first liquid spraying pipes (31) are communicated with each other, and one end of the connecting pipe (33) is in rotary sealing connection with the communication part of the other ends of the two groups of first liquid spraying pipes (31);
the middle part of the first liquid spraying pipe (31) is provided with a control sleeve (8), the control sleeve (8) is in sliding sealing connection with the first liquid spraying pipe (31), a plurality of groups of strip-shaped liquid outlet holes are formed in the middle part of the first liquid spraying pipe (31) at equal intervals, round holes corresponding to the strip-shaped liquid outlet holes in one-to-one correspondence are formed in the control sleeve (8), and one end of the control sleeve (8) is connected with a baffle ring (82) arranged on the first liquid spraying pipe (31) through a first spring (83);
a plurality of groups of push blocks (84) are arranged on one side of the rotating disc (23) along the horizontal direction, the push blocks (84) penetrate through the rotating disc (23) through trigger rods (85) arranged on the push blocks, and second springs (86) are sleeved on the trigger rods (85) between the push blocks (84) and the rotating disc (23);
the utility model discloses a trigger plate (87) is equipped with along vertical direction to rolling disc (23) another side, trigger plate (87) and control sleeve (8) other end fixed connection, ejector pad (84) use rolling disc (23) to set up as centre of a circle circumference equiangle, are located same axis department with connecting piece (34) and are equipped with the dead lever, the intercommunication department that two sets of first hydrojet pipes (31) other ends is run through to dead lever one end and with connecting pipe (33) inner wall fixed connection, and the dead lever is rotatory sealing connection with the intercommunication department of two sets of first hydrojet pipes (31) other ends, and the dead lever other end is equipped with push rod (81) that are used for promoting ejector pad (84) messenger trigger plate (87), trigger plate (87) and connecting piece (34) sliding connection.
2. A CO for improving methanol recovery efficiency as claimed in claim 1 2 The tail gas washing tower is characterized in thatThe movable part is a motor (7), an output shaft of the motor (7) is fixedly connected with the first rotating shaft (21), the motor (7) is fixedly connected with the bottom surface of the tower body (1) through a connecting rod, and four groups of supporting parts are arranged at the bottom of the tower body (1).
3. A CO for improving methanol recovery efficiency as claimed in claim 1 2 The tail gas washing tower is characterized in that the first liquid spraying pipe (31) and the second liquid spraying pipe (32) are provided with a plurality of groups of liquid spraying heads.
4. A CO for improving methanol recovery efficiency as claimed in claim 1 2 The tail gas washing tower is characterized in that a demisting net (4) is arranged in a tower body (1) positioned on a second spray pipe (32), a demisting disc (5) is arranged in the tower body (1) positioned below the rotating disc (23), and one end of the first rotating shaft (21) penetrates through the demisting disc (5).
5. A CO for improving a methanol recovery effect as in claim 4 2 The tail gas washing tower is characterized in that a circulating assembly (6) is arranged in the tower body (1), and the circulating assembly (6) comprises a water pipe (61), a piston pipe (62) and a second rotating shaft (63);
one end of the water pipe (61) is communicated with the connecting pipe (33), the other end of the water pipe (61) penetrates through the foam removing disc (5), a first one-way valve for feeding water to the water pipe (61) and a second one-way valve for feeding water to the connecting pipe (33) are respectively arranged at the lower part and the upper part of the inner wall of the water pipe (61), the piston pipe (62) is arranged above the foam removing disc (5), one end of the piston pipe (62) is communicated with the side wall of the water pipe (61), and a piston (621) is arranged in the piston pipe (62);
be located on first rotation axis (21) of defoaming dish (5) top and be equipped with second gear (64), second rotation axis (63) set up in tower body (1) of defoaming dish (5) top along the horizontal direction, second rotation axis (63) one end be equipped with second gear (64) meshing driven third gear (65), second rotation axis (63) other end be equipped with be used for piston (621) at piston tube (62) internal movement coupling assembling (66), tower body (1) bottom is equipped with bracing piece (631) that are used for supporting second rotation axis (63), bracing piece (631) one end runs through defoaming dish (5) and rotates with second rotation axis (63) and be connected.
6. A CO for improving a methanol recovery effect as in claim 5 2 The tail gas washing tower is characterized in that the connecting assembly (66) comprises a first connecting plate (661) and a second connecting plate (662), one end of the first connecting plate (661) is fixedly connected with the other end of the second rotating shaft (63), the other end of the first connecting plate (661) is rotatably connected with one end of the second connecting plate (662), and the other end of the second connecting plate (662) is rotatably connected with the piston (621).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211083185.8A CN115501736B (en) | 2022-09-06 | 2022-09-06 | CO for improving methanol recovery effect 2 Tail gas washing tower |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211083185.8A CN115501736B (en) | 2022-09-06 | 2022-09-06 | CO for improving methanol recovery effect 2 Tail gas washing tower |
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| Publication Number | Publication Date |
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| CN115501736A CN115501736A (en) | 2022-12-23 |
| CN115501736B true CN115501736B (en) | 2023-10-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211083185.8A Active CN115501736B (en) | 2022-09-06 | 2022-09-06 | CO for improving methanol recovery effect 2 Tail gas washing tower |
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| CN213467213U (en) * | 2020-07-06 | 2021-06-18 | 福建英辉新材料科技有限公司 | Glass fiber reinforced plastic washing tower device |
| CN214914915U (en) * | 2021-06-15 | 2021-11-30 | 四川佳运油气技术服务有限公司 | High-desulfurization-rate desulfurization device for purifying natural gas |
| CN217220236U (en) * | 2022-03-18 | 2022-08-19 | 北京石大圣铭科技有限公司 | Strip-shaped float valve tower disc capable of improving mass transfer efficiency and preventing float valve from being bonded |
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| US5632935A (en) * | 1994-04-28 | 1997-05-27 | Koch Engineering Company, Inc. | Vapor-liquid contact tray and downcomer assembly and method employing same |
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| CN115501736A (en) | 2022-12-23 |
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