CN115007042B - Polymer super strong forced instant dissolving device and dissolving method thereof - Google Patents
Polymer super strong forced instant dissolving device and dissolving method thereof Download PDFInfo
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- CN115007042B CN115007042B CN202210405503.1A CN202210405503A CN115007042B CN 115007042 B CN115007042 B CN 115007042B CN 202210405503 A CN202210405503 A CN 202210405503A CN 115007042 B CN115007042 B CN 115007042B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C7/00—Crushing or disintegrating by disc mills
- B02C7/02—Crushing or disintegrating by disc mills with coaxial discs
- B02C7/04—Crushing or disintegrating by disc mills with coaxial discs with concentric circles of intermeshing teeth
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C7/00—Crushing or disintegrating by disc mills
- B02C7/02—Crushing or disintegrating by disc mills with coaxial discs
- B02C7/08—Crushing or disintegrating by disc mills with coaxial discs with vertical axis
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- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Abstract
The invention discloses a polymer super strong forced instant dissolving device and a dissolving method thereof, which are characterized in that: the device consists of a liquid inlet, a stretching repeating unit and a mass transfer unit, wherein the stretching unit consists of an upper fixed fluted disc, a movable fluted disc and a lower fixed fluted disc which are all provided with a plurality of through holes in the same plane, the stretching repeating unit in the same plane is realized by gear engagement arranged on the periphery of the movable fluted disc, the upper fixed fluted disc and the lower fixed fluted disc are fixed on a shell of a dissolving device, the surfaces of the upper fixed fluted disc and the lower fixed fluted disc, which are close to the movable fluted disc, are in a short tooth structure and are uniformly engaged with the short tooth structures on the two sides of the movable fluted disc, the stretching unit also comprises a transmission shaft and a motor, the mass transfer unit is arranged around the periphery of the stretching unit, the mass transfer unit is an inner ring and an outer ring which can rotate around the same shaft in opposite directions, and a ' uniform ' solution ' is formed after polymer gel passes through the mass transfer unit.
Description
Technical Field
The invention relates to a rapid polymer dissolving method, in particular to a super strong forced polymer dissolving device and a dissolving method thereof.
Background
Polymer flooding is one of the important methods for improving recovery ratio in oil field development, and is widely applied to domestic and foreign land oil fields. The offshore oil field lacks fresh water resources, so that the mineralization degree of injected water is high, and the content of calcium and magnesium ions is high. The traditional partially hydrolyzed polyacrylamide has insufficient salt resistance and low viscosity, and can not meet the requirements of offshore oil fields. The hydrophobic association polymer has the characteristics of reversible three-dimensional network structure, good shearing dilutability and injectability, strong shearing resistance, good salt resistance, high viscosity and the like because of a small number of hydrophobic groups on the main chain, has high viscosity in water with high mineralization degree and high calcium and magnesium ion content, and is suitable for offshore oil fields lacking fresh water resources; the hydrophobic association polymer has more outstanding advantages for oil reservoirs with high stratum permeability and high crude oil viscosity. The conventional stirring curing time of the hydrophobic association polymer is long at normal temperature (20-25 ℃), and the application of the hydrophobic association polymer in offshore oil fields is greatly restricted. Therefore, the research of accelerating the dissolution rate of the hydrophobic association polymer aiming at the actual mine field of the offshore oil field has great significance for the technology of improving the recovery ratio of the offshore oil field mainly comprising the polymer.
The solubility studies of hydrophobically associating polymers have been carried out at present, and the dissolution time of hydrophobically associating polymers is more than 120 minutes in the existing method, which means that a large volume and a large number of curing tanks are needed to ensure complete dissolution of the polymers, and the polymer flooding is almost impossible for offshore platforms with limited space and bearing capacity, especially for the existing small platforms.
The on-line instant problem group of the enhanced oil recovery laboratory of southwest petroleum university is characterized in that swelling particles are stripped and cut by arranging screens or pore plates with different apertures at proper intervals inside a pipeline, the particle size of the swelling particles is reduced, the dissolution time is shortened, and the feasibility of the idea is verified. In 2006, the on-site magnification test was performed, and the polymer swollen particles were peeled off and cut multiple times in a cyclic manner, with the result that the dissolution time of the polymer was greatly shortened. But the polymer molecular chain is repeatedly cut to cause chain breakage, so that the solution viscosity is reduced; meanwhile, the swelling particles block the screen or the pore plate, and the requirement of polymer injection allocation of the offshore platform cannot be met. Therefore, there is an urgent need for a fast dissolving device for hydrophobically associating polymer with simple structure and convenient operation, which accelerates the dissolution rate of hydrophobically associating polymer, shortens the dissolution time, and satisfies the requirements of field application.
The invention aims to provide a device for accelerating dissolution of hydrophobically associating polymer swelling particles, which can realize on-site docking, and has the advantages of simple installation, small occupied area, light weight and large treatment capacity.
Disclosure of Invention
In view of the above, the present invention aims to provide a polymer super strong forced instant dissolving device and a dissolving method thereof, which are characterized in that: the device consists of a liquid inlet, a stretching repeating unit and a mass transfer unit, wherein the stretching unit consists of an upper fixed fluted disc, a movable fluted disc and a lower fixed fluted disc which are all provided with a plurality of through holes in the same plane, the stretching repeating unit in the same plane is meshed through gears arranged on the periphery of the movable fluted disc, the upper fixed fluted disc and the lower fixed fluted disc are fixed on a shell of a dissolving device, the surfaces of the upper fixed fluted disc and the lower fixed fluted disc, which are close to the movable fluted disc, are of a short tooth structure and are evenly meshed with the short tooth structures on the two sides of the movable fluted disc, the stretching unit also comprises a transmission shaft and a motor, the mass transfer unit is arranged on the periphery of the stretching unit in a surrounding manner, the mass transfer unit is an inner ring and an outer ring which can rotate around the same shaft in opposite directions, and a 'uniform' solution is formed after the polymer gel passes through the mass transfer unit.
In order to achieve the above purpose, the following technical scheme is adopted:
the device consists of a liquid inlet, a stretching repeating unit and a mass transfer unit, wherein the stretching unit consists of an upper fixed fluted disc, a movable fluted disc and a lower fixed fluted disc which are all provided with a plurality of through holes in the same plane, the stretching repeating unit is realized by gear engagement in the same plane, the upper fixed fluted disc and the lower fixed fluted disc are fixed on a shell of the dissolving device, the surfaces of the upper fixed fluted disc and the lower fixed fluted disc, which are close to the movable fluted disc, are in a short tooth structure and are uniformly engaged with the short tooth structures on the two sides of the movable fluted disc, the stretching repeating unit is repeatedly arranged in the same horizontal plane, the upper fixed fluted disc is fixed on a shell of the device through a fixing rod, the lower fixed fluted disc is fixed on the shell of the device through the fixing rod, the stretching unit further comprises a transmission shaft and a motor, the transmission shaft is connected with the movable fluted disc, the motor drives the movable fluted disc to rotate, the stretching unit surrounds the periphery of the stretching unit, the mass transfer unit is an inner ring and an outer ring which can rotate around the same axis, polymer swelling particles are sheared again by tangential force generated in the stretching unit, the stretching unit throws out the polymer gel after grinding to the mass transfer unit through super gravity, the polymer gel firstly enters the inner ring and the cavity of the inner ring and the inner ring of the polymer gel, and the inner ring of the inner ring and the outer ring are also provided with a porous polymer liquid inlet and a bottom plate, and a porous polymer liquid outlet are formed, and a liquid outlet is formed, and a liquid transfer part is also arranged on the inner ring. Furthermore, the movable fluted disc adopts a short tooth structure, the tooth length of the short tooth is 3 cm to 5cm, and the surface of the short tooth is designed in a circular arc transition way.
Further, the short tooth structures of the movable tooth disc and the lower fixed tooth disc are tooth-shaped, mass transfer repeated units are arranged in the same plane, and the meshing intervals between the upper fixed tooth disc and the movable tooth disc and between the movable tooth disc and the lower fixed tooth disc in each mass transfer unit are gradually reduced from top to bottom through the meshing rotation of the gears arranged on the periphery of the movable tooth disc.
Further, the liquid inlets are respectively and directly connected with the stretching repeating units, the liquid inlets are arranged on the upper part of the shell, and the liquid outlets are arranged on the lower part of the shell.
Further, the transmission shaft is connected with an external upper motor through the liquid storage cavity.
Further, the number of repeated stretching repeating units is n, and n is more than or equal to 2.
Further, the mass transfer unit is an inner ring and an outer ring which rotate around the same axis in opposite directions, the inner ring is provided with a cavity for accommodating the polymer, a polymer opposite pulling space is reserved between the inner ring and the outer ring, porous materials are arranged on the inner ring and the outer ring, the polymer is stretched through the porous materials of the inner ring and the outer ring on one hand, on the other hand, the polymer molecule chain segments are rapidly stretched due to forced back and forth pulling after the opposite rotation in the cavity between the inner ring and the outer ring, and the polymer stretching unit conveys the stretched polymer gel to the cavity of the inner ring of the mass transfer unit through a channel.
Further, the porous material is one or more of sand particles with different mesh numbers, foam metals with different pore diameters, screens with different pore diameters and cellulose.
Further, the polymer solution flowing out of the side edge of the outer ring is communicated with the liquid outlet of the device through a channel, the reverse rotation of the inner ring and the outer ring is realized in a way that the coaxial reverser or the inner ring and the outer ring are respectively controlled by different motors to rotate, and when the inner ring and the outer ring are controlled to rotate by different motors, the inner ring and the outer ring are controlled to rotate by different motors:
the inner ring is connected with the transmission shaft of the stretching unit and is directly in the same rotation direction as the movable fluted disc of the stretching unit, and the inner ring can be externally connected with a motor to realize self-control rotation;
the outer ring realizes the reverse rotation with the inner ring through the motor arranged at the lower part, a slide rail can be arranged on the device shell, the outer ring is fixed on the slide rail of the shell through the supporting points arranged at equal intervals, and the slide rail is rotated along the shell by the motor, so that the outer ring is driven to reversely rotate.
A method for dissolving a polymer by ultra-strong forced instant dissolution comprises the following steps:
firstly starting a stretching unit motor, starting a mass transfer unit motor or a coaxial reverser to enable a movable fluted disc of the stretching unit to start rotating, enabling an inner ring and an outer ring of the mass transfer unit to reversely rotate, pumping mixed solution of polymer dry powder and water from a liquid inlet, enabling undissolved aqueous solution of the polymer to enter each stretching unit from the liquid inlet to stretch, enabling the aqueous solution of the polymer to sequentially enter an upper fixed fluted disc and a movable fluted disc from a through hole on the upper fixed fluted disc, enabling a driven fluted disc to enter a lower fixed fluted disc, enabling the upper fixed fluted disc, the movable fluted disc and the lower fixed fluted disc to adopt short tooth structures, enabling the short tooth structures of the movable fluted disc and the lower fixed fluted disc to be in tooth shapes, enabling mass transfer repeating units to repeatedly arranged in the same plane, enabling the meshing space between the upper fixed fluted disc and the movable fluted disc and the lower fixed fluted disc to gradually decrease from top to bottom through gear meshing rotation arranged on the periphery of the movable fluted disc, the dynamic fluted disc runs at a certain rotation speed, the swelling particles in the aqueous solution of the polymer are rolled and unfolded by a short tooth structure, the treated swelling particles are sheared again by the tangential force generated by the polymer swelling particles in the stretching unit through the supergravity of the stretching unit, thrown into the inner ring cavity of the mass transfer unit, the polymer swelling particles are thrown out in the radial direction of the mass transfer ring under the rotation driving of the inner ring, the polymer swelling particles are forced to be pulled back and forth after the counter rotation of the outer ring through the porous material arranged on the inner ring and the outer ring in the space of the inner ring and the outer ring under the action of the supergravity, the polymer molecular chain segments are continuously utilized to be rapidly pulled back and forth through the porous material arranged on the outer ring through the side liquid outlet of the outer ring, the liquid outlet is connected with the liquid outlet of the device, and the device is discharged, a "homogeneous" polymer solution is obtained after dissolution.
The beneficial effects are that:
the beneficial effects of the invention are as follows:
the device can rapidly dissolve polymers, particularly for hydrophobic association type polymers, the unique association effect of the device leads to strong interaction of molecular chains, the device provides forced stretching and mass transfer in a combined mode, and the contact surface area of water is greatly increased, so that rapid dissolution is achieved, and the device has the advantages of meeting large injection allocation, small occupied area and bearing, and strong safety in installation and operation.
Drawings
Figure 1 is a schematic diagram of a polymer super strong forced instant apparatus according to an embodiment of the present invention;
figure 2 is a schematic diagram of another embodiment of the instant apparatus for ultra-strong forced dissolution of polymers according to the present invention;
figure 3 is a top view of the polymer super strong forced instant apparatus (with motor and fixed rod removed) in an embodiment of the present invention;
FIG. 4 is a top view of a movable fluted disc of the polymer super strong forced instant apparatus according to an embodiment of the present invention;
FIG. 5 is an enlarged cross-sectional view of the short tooth structure of the upper fixed tooth disc, the movable tooth disc and the lower fixed tooth disc of the polymer super strong forced instant apparatus according to the embodiment of the present invention;
figure 6 is a top view of the mass transfer unit of the super strong forced instant apparatus of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.
Example 1:
the embodiment mainly adopts the technical scheme that the stretching units are formed by connecting 3 stretching repeating units in parallel, namely, the 3 stretching repeating units are arranged in the mass transfer unit according to the same plane, namely, the number n of the repeating units is 3, and the principles of the stretching repeating units with other numbers are similar and will not be repeated.
As can be seen from FIG. 1, FIG. 1 is a construction diagram of the invention, the polymer superstrong forced instant dissolving device is composed of a liquid inlet 3, a stretching repeating unit and a mass transfer unit, the stretching unit is composed of an upper fixed tooth disc 5, a movable tooth disc 6 and a lower fixed tooth disc 7 which are all provided with a plurality of through holes in the same plane, the stretching repeating unit in the same plane is meshed by gears arranged on the periphery of the movable tooth disc 6, the upper fixed tooth disc 5 and the lower fixed tooth disc 7 are fixed on a dissolving device shell 4, the surfaces of the upper fixed tooth disc 5 and the lower fixed tooth disc 7 close to the movable tooth disc 6 adopt short tooth structures and are evenly meshed with the short tooth structures on the two surfaces of the movable tooth disc 6, the stretching repeating unit is repeatedly arranged in the same horizontal plane, the upper fixed tooth disc 5 is fixed on the device shell 4 by a fixed rod 18, the lower fixed tooth disc 7 is fixed on the device shell 4 by a fixed rod 17, the stretching unit also comprises a transmission shaft 2 and a motor 1, the transmission shaft 2 is connected with the movable fluted disc 6, the motor 1 drives the movable fluted disc 6 to rotate, the stretching unit is surrounded by a mass transfer unit, the mass transfer unit is an inner ring 11 and an outer ring 10 which can rotate around a coaxial reverse direction, the inner ring 11 is provided with a cavity 9 for containing polymer, polymer swelling particles are sheared again by tangential force generated in the stretching unit, the stretching unit throws milled polymer gel out to the mass transfer unit through supergravity, the polymer gel firstly enters the cavity 9 of the inner ring 11, a polymer reverse pulling space 8 is reserved between the inner ring and the outer ring, porous materials are arranged on the inner ring 11 and the outer ring 10, the polymer is stretched through the porous materials of the inner ring 11 and the outer ring 10 on one hand, on the other hand, the polymer molecular chain segments are forced to be pulled back and forth after reverse rotation in the cavity 8 between the inner ring 11 and the outer ring 10, the polymer gel forms a 'uniform' solution after passing through the mass transfer unit, and is communicated with a polymer liquid outlet 13 arranged at the lower part of the mass transfer unit through a channel 12, a polymer liquid inlet 3, a polymer liquid inlet 15 are arranged at the upper part of the stretching unit, an outer ring bottom plate, an inner ring bottom plate and an inner ring bottom plate are respectively arranged at the upper part and the lower part of the stretching unit, an inner ring rotating transmission shaft and a fixed rod are respectively arranged at the lower part and the upper part of the stretching unit, the inner ring transmission shaft 14 is externally connected with a motor, a sliding rail is arranged on an outer ring 10 through an outer shell of the device, the outer ring is fixed on the sliding rail of the outer shell through equally-spaced supporting points 19, and the sliding rail is rotated along the outer shell 4 through the motor, so that the outer ring 10 is driven to reversely rotate.
In a further case, the inner ring 11 is reversely rotated with the stretching unit by an external motor, the outer ring 10 is fixed on the device shell by a fixing point, the outer ring 10 does not rotate during operation, the inner ring 11 and the outer ring 10 are forcedly pulled back and forth in the cavity 8 between the inner ring 11 and the outer ring 10 after rotating, the polymer molecular chain segments rapidly stretch, and the polymer gel forms a 'uniform' solution after passing through the mass transfer unit.
When in use, the stretching unit motor 1 is started firstly, and the mass transfer unit motor or the coaxial reverser is started, so that the stretching unit movable fluted disc 5 starts to rotate, the inner ring and the outer ring of the mass transfer unit reversely rotate, the mixed solution of polymer dry powder and water is pumped from the liquid inlet 3, the water solution of the polymer which is not dissolved enters each stretching unit from the liquid inlet 3 to stretch, the water solution of the polymer sequentially enters the upper fixed fluted disc 5 and the movable fluted disc 6 from the through holes on the upper fixed fluted disc 5 and then enters the lower fixed fluted disc 7 from the movable fluted disc 6, and as the upper fixed fluted disc 5, the movable fluted disc 6 and the lower fixed fluted disc 7 all adopt the short tooth structures, the short tooth structures of the movable fluted disc 6 and the lower fixed fluted disc 7 are in tooth shapes, mass transfer repeating units are repeatedly arranged in the same plane and rotate through the meshing of the gears arranged at the peripheries of the fixed fluted discs 5 and 7, the meshing distance between the upper fixed fluted disc 5 and the movable fluted disc 6 in each mass transfer unit and between the movable fluted disc 6 and the lower fixed fluted disc 7 is gradually reduced from top to bottom, the movable fluted disc 6 runs at a certain rotation speed, the swelling particles in the aqueous solution of the polymer are rolled and unfolded by a short tooth structure, the treated swelling particles are thrown into an inner ring cavity 9 of the mass transfer unit through the supergravity of a stretching unit, the supergravity throws the polymer swelling particles out towards the radial direction of the mass transfer ring under the rotation driving of an inner ring 11, the polymer swelling particles encounter an outer ring 10 which rotates reversely in a space 8 between the inner ring 11 and the outer ring 10 under the supergravity effect through a porous material arranged on the inner ring 11, the polymer molecular chain segments are forced to be pulled back and forth after the outer ring 10 rotates reversely, the polymer molecular chain segments are rapidly stretched, the polymer is continuously discharged through the side surface of the outer ring 10 by the porous material arranged on the outer ring 10 by the aid of the rotary supergravity, the liquid is connected with a liquid outlet 13 of the device, the device for discharging the liquid is provided with a discharging device, a "homogeneous" polymer solution is obtained after dissolution.
In a further case, the inner ring 11 is reversely rotated with the stretching unit by an external motor, the outer ring 10 is fixed on the device shell by a fixing point, the outer ring 10 does not rotate during operation, the inner ring 11 and the outer ring 10 are forcedly pulled back and forth in the cavity 8 between the inner ring 11 and the outer ring 10 after rotating, the polymer molecular chain segments rapidly stretch, and the polymer gel forms a 'uniform' solution after passing through the mass transfer unit.
As can be seen from FIG. 2, FIG. 2 is another construction diagram of the invention, the polymer superstrong forced instant dissolving device is composed of a liquid inlet 3, a stretching repeating unit and a mass transfer unit, the stretching unit is composed of an upper fixed tooth disc 5, a movable tooth disc 6 and a lower fixed tooth disc 7 which are all provided with a plurality of through holes in the same plane, the stretching repeating unit is meshed with gears arranged on the periphery of the movable tooth disc 6 in the same plane, the upper fixed tooth disc 5 and the lower fixed tooth disc 7 are fixed on a dissolving device shell 4, the surfaces of the upper fixed tooth disc 5 and the lower fixed tooth disc 7 close to the movable tooth disc 6 adopt a short tooth structure and are evenly meshed with the short tooth structures on the two surfaces of the movable tooth disc 6, the stretching repeating unit is repeatedly arranged in the same horizontal plane, the upper fixed tooth disc 5 is fixed on the device shell 4 through a fixed rod 18, the lower fixed tooth disc 7 is fixed on the device shell 4 through a fixed rod 17, the stretching unit also comprises a transmission shaft 2 and a motor 1, the transmission shaft 2 is connected with the movable fluted disc 6, the motor 1 drives the movable fluted disc 6 to rotate, the stretching unit is surrounded by a mass transfer unit, the mass transfer unit is an inner ring 11 and an outer ring 10 which can rotate around a coaxial reverse direction, the inner ring 11 is provided with a cavity 9 for containing polymer, the stretching unit throws out polymer gel solution after grinding to the mass transfer unit through supergravity, the polymer gel firstly enters the cavity 9 of the inner ring 11, a polymer reverse pulling space 8 is reserved between the inner ring and the outer ring, porous materials are arranged on the inner ring 11 and the outer ring 10, the polymer stretches through the porous materials of the inner ring 11 and the outer ring 10 on one hand, on the other hand, polymer molecular chain segments are forced to be pulled back and forth after the reverse rotation in the cavity 8 between the inner ring 11 and the outer ring 10, the polymer gel forms a 'uniform' solution after passing through the mass transfer unit, the inner ring is rotated and directly connected with a stretching unit motor 1 by a transmission shaft 2, the inner ring rotation direction is consistent with that of a stretching unit movable fluted disc, the inner ring can also be reversely rotated with the stretching unit, the inner ring rotation direction is opposite to that of the stretching unit movable fluted disc by directly utilizing the transmission shaft 2 through a coaxial counter rotator, a sliding rail is arranged on an outer ring 10 by utilizing a device shell, the outer ring is fixed on the sliding rail of the shell through equally spaced supporting points 19, and the sliding rail is rotated along the shell 4 by utilizing the motor, so that the outer ring 10 is driven to reversely rotate.
In a further case, the inner ring 11 is reversely rotated with the stretching unit by an external motor, the outer ring 10 is fixed on the device shell by a fixing point, the outer ring 10 does not rotate during operation, the inner ring 11 and the outer ring 10 are forcedly pulled back and forth in the cavity 8 between the inner ring 11 and the outer ring 10 after rotating, the polymer molecular chain segments rapidly stretch, and the polymer gel forms a 'uniform' solution after passing through the mass transfer unit.
When in use, the stretching unit motor 1 is started firstly, and the mass transfer unit motor or the coaxial reverser is started, so that the stretching unit movable fluted disc 5 starts to rotate, the inner ring and the outer ring of the mass transfer unit reversely rotate, the mixed solution of polymer dry powder and water is pumped from the liquid inlet 3, the water solution of the polymer which is not dissolved enters each stretching unit from the liquid inlet 3 to stretch, the water solution of the polymer sequentially enters the upper fixed fluted disc 5 and the movable fluted disc 6 from the through holes on the upper fixed fluted disc 5 and then enters the lower fixed fluted disc 7 from the movable fluted disc 6, and as the upper fixed fluted disc 5, the movable fluted disc 6 and the lower fixed fluted disc 7 all adopt the short tooth structures, the short tooth structures of the movable fluted disc 6 and the lower fixed fluted disc 7 are in tooth shapes, mass transfer repeating units are repeatedly arranged in the same plane and rotate through the meshing of the gears arranged at the peripheries of the fixed fluted discs 5 and 7, the meshing distance between the upper fixed fluted disc 5 and the movable fluted disc 6 in each mass transfer unit and between the movable fluted disc 6 and the lower fixed fluted disc 7 is gradually reduced from top to bottom, the movable fluted disc 6 runs at a certain rotation speed, the swelling particles in the aqueous solution of the polymer are rolled and unfolded by a short tooth structure, the treated swelling particles are thrown into an inner ring cavity 9 of the mass transfer unit through the supergravity of a stretching unit, the supergravity throws the polymer swelling particles out towards the radial direction of the mass transfer ring under the rotation driving of an inner ring 11, the polymer swelling particles encounter an outer ring 10 which rotates reversely in a space 8 between the inner ring 11 and the outer ring 10 under the supergravity effect through a porous material arranged on the inner ring 11, the polymer molecular chain segments are forced to be pulled back and forth after the outer ring 10 rotates reversely, the polymer molecular chain segments are rapidly stretched, the polymer is continuously discharged through the side surface of the outer ring 10 by the porous material arranged on the outer ring 10 by the aid of the rotary supergravity, the liquid is connected with a liquid outlet 13 of the device, the polymer solution was discharged from the apparatus and "homogeneous" after dissolution was obtained.
In a further case, the inner ring 11 is reversely rotated with the stretching unit by an external motor, the outer ring 10 is fixed on the device shell by a fixing point, the outer ring 10 does not rotate during operation, the inner ring 11 and the outer ring 10 are forcedly pulled back and forth in the cavity 8 between the inner ring 11 and the outer ring 10 after rotating, the polymer molecular chain segments rapidly stretch, and the polymer gel forms a 'uniform' solution after passing through the mass transfer unit.
As shown in fig. 3, a top view of the polymer super strong forced instant dissolving device (with a motor, a fixed rod and an upper fixed fluted disc removed) is shown, the stretching repeated units in the same plane are meshed through gears arranged at the periphery of the movable fluted disc 6, the stretching repeated units are repeatedly arranged in the same horizontal plane, the periphery of the stretching units is surrounded by mass transfer units, the mass transfer units are an inner ring 11 and an outer ring 10 which can rotate around the same axis reversely, the inner ring 11 is provided with a cavity 9 for containing polymer, the stretching units throw out milled polymer gel solution to the mass transfer units through super gravity, the polymer gel solution firstly enters the cavity 9 of the inner ring 11, a polymer reverse pulling space 8 is reserved between the inner ring and the outer ring, porous materials are arranged on the inner ring 11 and the outer ring 10, the polymer is stretched through the porous materials of the inner ring 11 and the outer ring 10 on one hand, polymer molecule chain segments are forced to stretch back and forth after being reversely rotated in the cavity 8 between the inner ring 11 and the outer ring 10, the polymer molecule chain segments are rapidly stretched after passing through the mass transfer units, 19 is a supporting point between the outer ring and a slide rail, 13 is a polymer solution outlet, 12 is a polymer solution outlet, and 12 is communicated with a polymer channel 13.
As shown in fig. 4, which is a top view of a movable fluted disc of a polymer super strong forced instant device, the movable fluted disc 6 is driven by a transmission shaft 2 to operate, and swelling particles of the polymer are rolled and unfolded by a short tooth 62 structure to form swelling particles with smaller particle size, the swelling particles flow out from a through hole 61, a gear is arranged on the outer ring of the movable fluted disc 6, and different stretching repeating units are meshed and rotated through an outer ring gear.
FIG. 5 is an enlarged cross-sectional view of the short tooth structure of the upper fixed tooth disc, the movable tooth disc and the lower fixed tooth disc of the polymer super strong forced instant device.
The upper fixed teeth 20 and the movable teeth 21 of each stretching repeating unit have the same meshing distance between the movable teeth 21 and the lower fixed teeth 22, namely the meshing distance between the upper fixed tooth disc, the movable tooth disc and the lower fixed tooth disc of each repeating unit is the same. The stretching units are formed by connecting identical stretching repeating units in parallel.
Namely, the short tooth structure of the movable tooth disc and the lower fixed tooth disc is trapezoidal: the upper fixed teeth 20 of the upper fixed tooth disc 5 and the movable teeth 21 of the movable tooth disc 6 form a primary instant structure, the upper fixed teeth 20 and the movable teeth 21 are mutually meshed and have a meshing interval 23, the inlet at the upper part of the meshing interval 23 is 2.45mm, the outlet at the lower part of the meshing interval 23 is 0.45mm, and the depth of 0.45mm is 5mm. The movable teeth 21 of the movable fluted disc 6 and the lower fixed teeth 22 of the lower fixed fluted disc 7 form a two-stage quick dissolving structure, the movable teeth 21 and the lower fixed teeth 22 are mutually meshed and have a meshing interval 23, the inlet at the upper part of the meshing interval 23 is 1.32mm, the outlet at the lower part of the meshing interval 19 is 0.15mm, and the depth of 0.15mm is 5mm. The bipolar instant structure can forcedly stretch the swelling particles, the effect is better than that of a fixed fluted disc and a movable fluted disc, and a foundation is laid for a subsequent mass transfer unit through 3 identical stretching repeating units which are arranged in parallel.
Figure 6 is a top view of a mass transfer unit of a polymer super strong forced instant apparatus, which is composed of a mass transfer ring, divided into an inner ring 11 and an outer ring 10, and a cavity 9 in which the inner ring accommodates the polymer, the space 8 between the inner ring and the outer ring, and the outer ring and the inner ring are rotated in opposite directions, and porous materials are disposed in both the inner ring and the outer ring, so that a "uniform" polymer solution is formed by stretching the porous materials when the polymer gel passes through the inner ring and the outer ring.
The specific method is as follows: the swelling particles treated by the stretching unit enter the inner ring cavity 9 of the mass transfer unit, the polymer swelling particles are thrown out in the radial direction by the supergravity under the rotation drive of the inner ring 11, the porous materials arranged on the inner ring 11 are used for encountering the outer ring 10 which rotates reversely in the space 8 between the inner ring 11 and the outer ring 10 under the supergravity action, the outer ring 10 is forced to pull back and forth after rotating reversely, polymer molecular chain segments are rapidly stretched, the polymer molecular chain segments are continuously stretched by utilizing the rotating supergravity of the outer ring, the polymer swelling particles are discharged through the side surface of the outer ring 10, the discharged liquid is connected with the liquid outlet 13 of the device through the channel 12, and the dissolved uniform polymer solution is discharged out of the device.
Comparative example:
the device of the comparative example adopts a polymer high-efficiency preparation device in CN110860250A and an assembly method thereof, and the technical scheme is as follows:
a high-efficient polymer preparing apparatus is composed of inlet collecting pipe, tubular dissolving unit for forced stretching polymer, outlet collecting pipe and multi-stage mass transfer polymer deep dissolving unit; the tubular dissolving device for the forced stretching polymer comprises a motor, an upper end seat, a tubular dissolving shell, a lower end seat, a transmission shaft axially arranged in the tubular dissolving shell and a plurality of dissolving units arranged in the tubular dissolving shell in parallel; the motor is axially arranged on the upper end seat and is in transmission connection with the transmission shaft; the input collecting pipe and the output collecting pipe are closed ends at one end and open ends at the other end; the opening end of the output collecting pipe is connected and communicated with a multistage mass transfer polymer deepening instant device, and a polymer outlet is arranged on the multistage mass transfer polymer deepening instant device. The device has the advantages of simple installation, large treatment capacity, light weight and small occupied area, can effectively accelerate the dissolution of the polymer, and can be used in the offshore platform polymer oil displacement technology.
The specific structure is described in CN110860250a, because a polymer efficient preparation device described in CN110860250a is a forced stretching dissolution device and a multistage mass transfer device is added, but the multistage mass transfer device is essentially different from the present application, the mass transfer ring cannot rotate, the mass transfer ring of the present application is close to the stretching moving fluted disc and can rotate in opposite directions to the rotating direction of the moving fluted disc, the outer ring and the inner ring of the mass transfer ring rotate in opposite directions, all adjacent mass transfer rings rotate in opposite directions, and the stretching unit and the mass transfer unit are arranged together, so that polymer particles brought by rotation in the stretching unit are rapidly and uniformly dissolved under the action of the pulling action of the reverse rotation of the mass transfer ring, and the polymer efficient preparation device described in CN110860250a in the prior art is separated from the mass transfer device, cannot play a better synergistic effect, and the mass transfer ring cannot rotate, and the adjacent mass transfer ring cannot rotate in opposite directions, so that the polymer dissolving speed of the adjacent mass transfer ring is slow, and the polymer is slow in the case of an AP-P4 polymer, and the reservoir water quality of the Bohai sea SZ 36-1:
at the same volume, the concentration of the compound of the present application was 2000mg/L, and the compound rate was 2 times that of the comparative example.
According to the injection preparation requirement, when the preparation speed is fixed, and the device volume is equivalent, the highest preparation concentration of the application can be 20000mg/L.
However, in the comparative example, when the preparation speed was constant and the volume of the apparatus was equivalent, the maximum preparation concentration was 5000mg/L.
Therefore, after the polymer is ground by stretching the movable fluted disc, the polymer is thrown out and directly meets the counter-rotating mass transfer rings which are arranged together, the counter-rotating pulling force of the polymer enables the polymer to be rapidly dispersed, the adjacent mass transfer rings are all counter-rotated, the polymer is continuously pulled in the counter-rotating space and rapidly dispersed into a uniform polymer solution, and the polymer solution is a technical scheme which is not in the prior art, is completely different from the prior art, and has great progress.
In summary, the invention discloses a polymer super strong forced instant dissolving device and a dissolving method thereof, which are characterized in that: the device consists of a liquid inlet, a stretching repeating unit and a mass transfer unit, wherein the stretching unit consists of an upper fixed fluted disc, a movable fluted disc and a lower fixed fluted disc which are all provided with a plurality of through holes in the same plane
The present invention is not limited to the above-mentioned embodiments, but is not limited to the above-mentioned embodiments, and any person skilled in the art can make some changes or modifications to the equivalent embodiments without departing from the scope of the technical solution of the present invention, but any simple modification, equivalent changes and modifications to the above-mentioned embodiments according to the technical substance of the present invention are still within the scope of the technical solution of the present invention.
Claims (4)
1. A polymer superstrong forced instant dissolving device is characterized in that the device consists of a liquid inlet, a stretching repeating unit and a mass transfer unit, wherein the stretching unit consists of an upper fixed fluted disc, a movable fluted disc and a lower fixed fluted disc which are all provided with a plurality of through holes in the same plane, the stretching repeating unit in the same plane is realized through gear engagement arranged at the periphery of the movable fluted disc, the upper fixed fluted disc and the lower fixed fluted disc are fixed on a shell of the dissolving device, the surfaces of the upper fixed fluted disc and the lower fixed fluted disc, which are close to the movable fluted disc, are in a short tooth structure and are uniformly engaged with the short tooth structures on the two sides of the movable fluted disc, the stretching repeating unit is repeatedly arranged in the same horizontal plane, the upper fixed fluted disc is fixed on the shell of the device through a fixed rod, the lower fixed fluted disc is fixed on the shell of the device through the fixed rod, the stretching unit further comprises a transmission shaft and a motor, the transmission shaft is connected with the movable fluted disc, the motor drives the movable fluted disc to rotate, the periphery of the stretching unit is provided with the mass transfer unit, the mass transfer unit is an inner ring and an outer ring which rotate around the same axis, a cavity for containing polymer, a polymer reverse pulling space is reserved between the inner ring and the outer ring, a porous material is reserved on the inner ring and the outer ring, the inner ring and the polymer swelling unit is sheared by tangential force again,
the stretching unit throws the milled polymer gel out to the mass transfer unit through supergravity, the polymer gel firstly enters the cavity of the inner ring, the polymer is stretched through porous materials of the inner ring and the outer ring, on the one hand, the polymer is forced to pull back and forth after reversely rotating in the cavity between the inner ring and the outer ring, the polymer molecular chain segments are rapidly stretched, the polymer gel forms uniform solution after passing through the mass transfer unit, the uniform solution is discharged through a channel and a polymer liquid outlet arranged at the lower part of the mass transfer unit, a polymer liquid inlet is arranged at the upper part of the stretching unit, a bottom plate is further arranged on the outer ring, and the bottom plate is further arranged on the inner ring;
the movable fluted disc adopts a short tooth structure, the tooth length of the short tooth is 3-5 cm, and the surface of the short tooth is designed in a circular arc transition manner;
the short tooth structures of the movable fluted disc and the lower fixed fluted disc are tooth-shaped, the stretching repeating units are arranged in the same plane, and the meshing intervals between the upper fixed fluted disc and the movable fluted disc and between the movable fluted disc and the lower fixed fluted disc in each mass transfer unit are gradually reduced from top to bottom through meshing rotation of gears arranged on the periphery of the movable fluted disc;
the liquid inlets are respectively and directly connected with the stretching repeating units, the liquid inlets are arranged at the upper part of the shell, and the liquid outlets are arranged at the lower part of the shell;
the transmission shaft is connected with an external overhead motor through the liquid storage cavity;
the repeated number of the stretching repeated units is n, and n is more than or equal to 2.
2. A polymer super strong forced instant apparatus according to claim 1, wherein said porous material is one or more of sand particles of different mesh numbers, foam metals of different pore sizes, screens of different pore sizes, cellulose;
the outer ring is fixed on the device shell, and the inner ring realizes reverse rotation with the movable fluted disc through the coaxial reverser, or realizes reverse rotation with the movable fluted disc through an independent motor.
3. A polymer super strong forced instant device according to claim 1, wherein the polymer solution flowing out from the side of the outer ring is communicated with the liquid outlet of the device through a channel, and the reverse rotation of the inner ring and the outer ring is realized by a coaxial inverter or the rotation directions of the inner ring and the outer ring are controlled by different motors respectively, when the inner ring and the outer ring are controlled to rotate by different motors:
the inner ring is connected with the transmission shaft of the stretching unit and is directly in the same rotation direction as the movable fluted disc of the stretching unit, or the inner ring is externally connected with a motor to realize self-control rotation;
the outer ring is reversely rotated with the inner ring through the motor arranged at the lower part, or the outer ring is fixed on the outer shell sliding rail through the supporting points arranged at equal intervals by utilizing the sliding rail arranged on the outer shell, and the outer ring is driven to reversely rotate by utilizing the motor to rotate along the outer shell.
4. A method for the ultra-strong forced instant dissolution of polymers using the device of claim 1, characterized in that it comprises the steps of:
starting a stretching unit motor and starting a mass transfer unit motor or a coaxial reverser to enable a movable fluted disc of the stretching unit to start rotating, enabling an inner ring and an outer ring of the mass transfer unit to reversely rotate, pumping mixed liquid of polymer dry powder and water from a liquid inlet, enabling undissolved polymer aqueous solution to enter each stretching unit from the liquid inlet to stretch, enabling the polymer aqueous solution to sequentially enter the upper fixed fluted disc and the movable fluted disc from a through hole on the upper fixed fluted disc, enabling the polymer aqueous solution to enter the lower fixed fluted disc from the driven fluted disc, enabling the movable fluted disc and the lower fixed fluted disc to take the shape of a tooth, enabling the stretching repetition units to be repeatedly arranged in the same plane, enabling the meshing distance between the upper fixed fluted disc and the movable fluted disc to gradually decrease from top to bottom through gears arranged on the periphery of the movable fluted disc, enabling the movable fluted disc to operate at a certain rotation speed, enabling swelling particles in the polymer aqueous solution to be rolled and unfolded by the short fluted disc structure, enabling the polymer swelling particles to be thrown out of the stretching units again by tangential force in the stretching units through the super-gravity of the stretching units, enabling the polymer swelling particles to be thrown out of the inner ring to the outer ring to take the material out of the outer ring and enable the material to be rapidly arranged on the outer ring to be in the reverse rotation direction of the outer ring through the outer ring, enabling the material to be rotated to be continuously arranged on the outer ring to take the side of the material to the outer ring to rotate, and the material is stressed out of the material is rotated in the outer ring through the reverse rotation direction of the ring, and the material is arranged in the reverse rotation direction of the outer ring is stressed around the outer ring and rotated around the outer ring, a homogeneous polymer solution after dissolution was obtained.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210405503.1A CN115007042B (en) | 2022-04-18 | 2022-04-18 | Polymer super strong forced instant dissolving device and dissolving method thereof |
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| CN202210405503.1A CN115007042B (en) | 2022-04-18 | 2022-04-18 | Polymer super strong forced instant dissolving device and dissolving method thereof |
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| CN1325137C (en) * | 2005-02-24 | 2007-07-11 | 浙江工业大学 | Multilayer deflection type overgravity rotary bed device |
| CN102794118B (en) * | 2012-08-23 | 2014-08-13 | 冯波 | Method and device for high efficiency preparation of oil-displacement polymer used for oil field |
| CN103801242B (en) * | 2012-11-03 | 2015-12-02 | 中国石油化工股份有限公司 | Reactor and the alkylation reaction method utilizing this reactor |
| CN105833641B (en) * | 2016-04-19 | 2018-01-02 | 贾克 | Double filter cores reversely rotate hypergravity hydrofilter |
| CN106075950B (en) * | 2016-06-24 | 2018-03-06 | 昆明理工大学 | A kind of dual drive cross_flow rotating packed bed |
| CN110860250B (en) * | 2019-12-04 | 2022-09-02 | 西南石油大学 | Efficient polymer preparation device and assembly method thereof |
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