CN114689466B - Online polymer viscosity detection device - Google Patents
Online polymer viscosity detection device Download PDFInfo
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- CN114689466B CN114689466B CN202210609473.6A CN202210609473A CN114689466B CN 114689466 B CN114689466 B CN 114689466B CN 202210609473 A CN202210609473 A CN 202210609473A CN 114689466 B CN114689466 B CN 114689466B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
Abstract
The invention relates to the field of viscosity detection, in particular to an online polymer viscosity detection device, which comprises a feeding component, a discharging component, a detection component, a three-way pipeline and a connecting mechanism, wherein the feeding component comprises a feeding pipe, the discharging component comprises a discharging pipe, and the detection component comprises an installation pipe and a detection element; the three-way pipeline comprises three connecting pipelines, one end of each connecting pipeline is communicated, the three connecting pipelines are fixed inside the three-way pipeline, and the feeding pipe, the discharging pipe and the mounting pipe are respectively mounted in the three connecting pipelines of the three-way pipeline; the number of the connecting mechanisms is three, each connecting mechanism comprises a threaded sleeve and a pressing piece, and the threaded sleeve is sleeved outside the connecting pipeline and is in threaded fit with the connecting pipeline; the pressing piece is arranged in the connecting pipeline; when the threaded sleeve rotates along the first circumferential direction, the threaded sleeve moves from the inner end of the connecting pipeline to the outer end of the connecting pipeline and enables the outer end of the connecting pipeline to be folded, so that the pressing piece can tightly push the feeding pipe, the discharging pipe or the mounting pipe under the folding action of the connecting pipeline.
Description
Technical Field
The invention relates to the field of viscosity detection, in particular to an online polymer viscosity detection device.
Background
Viscosity is an important index of polymer characteristics, and with the rapid development of automation control technology, people are increasingly not satisfied with obtaining viscosity parameters from laboratories to control product quality, but hope to detect the viscosity of polymers in real time during the polymer production reaction process. Through installing sampling device in the reation kettle different positions of polymer, carry out the sampling test to different position extraction polymers, whether the viscosity characteristic of polymer can both be qualified in clear whole reation kettle. Install the viscometer in sampling device among the prior art, obtain the testing result of different positions, HYND vibration on-line viscometer for example, but the viscometer can produce certain vibration in the course of the work, leads to its being connected with sampling device to appear becoming flexible, influences the accuracy of testing result.
Disclosure of Invention
The invention provides a polymer on-line viscosity detection device, which solves the problem that the traditional viscometer of the detection device is unreliable in installation.
The invention discloses a polymer on-line viscosity detection device, which adopts the following technical scheme:
a polymer on-line viscosity detection device is used for detecting polymers processed in a reaction kettle and comprises a feeding assembly, a discharging assembly, a detection assembly, a three-way pipeline and a connecting mechanism, wherein the feeding assembly comprises a feeding pipe, the discharging assembly comprises a discharging pipe, and the detection assembly comprises an installation pipe and a detection element; the three-way pipeline comprises three connecting pipelines, wherein one ends of the three connecting pipelines are communicated and the three connecting pipelines are fixed inside the three connecting pipelines, the fixed ends of the three connecting pipelines are the inner ends of the connecting pipelines, the other ends of the three connecting pipelines are the outer ends of the connecting pipelines, and the outer ends of the connecting pipelines can be folded under the action of external force; the feeding pipe, the discharging pipe and the mounting pipe are respectively inserted into the corresponding connecting pipelines from the outer ends of the three connecting pipelines; the number of the connecting mechanisms is three, each connecting mechanism comprises a threaded sleeve, a pressing piece and a boosting assembly, and the threaded sleeve is sleeved outside the connecting pipeline and is in threaded fit with the connecting pipeline; the pressing piece is arranged in the connecting pipeline; when the threaded sleeve rotates along the first circumferential direction, the threaded sleeve moves from the inner end of the connecting pipeline to the outer end of the connecting pipeline and enables the outer end of the connecting pipeline to be folded, and the pressing piece tightly pushes the feeding pipe, the discharging pipe or the mounting pipe under the folding action of the connecting pipeline; the boosting assembly enables the pressing piece to further tightly push the feeding pipe, the discharging pipe or the mounting pipe in the detection process.
Further, the external diameter of connecting tube has the reducing section that increases gradually from inside to outside, a plurality of and the outer terminal surface intercommunication's of connecting tube slot are seted up to the outer circumference of connecting tube, every slot all extends to the reducing section of connecting tube and runs through the perisporium of connecting tube along the connecting tube axial, the part between two adjacent slots of connecting tube is deformation portion, the thread bush is from the inner of connecting tube to the in-process of the outer end removal of connecting tube, the reducing section of extrusion connecting tube makes a plurality of deformation portions inwards draw in under the exogenic action.
Furthermore, the pressing piece comprises a connecting ring and a plurality of top pressure plates, the connecting ring is coaxial with the connecting pipeline, a top pushing column is arranged on the inner ring of the deformation part of the connecting pipeline, an inclined plane abutted against the top pushing column is arranged on the outer ring of the connecting ring, and the inclined plane on the connecting ring is pushed when the top pushing column is folded inwards along with the deformation part, so that the connecting ring moves towards the direction close to the inner end of the connecting pipeline or tends to move towards the direction close to the inner end of the connecting pipeline; the plurality of top pressure plates are uniformly distributed at intervals around the circumferential direction of the connecting ring, and are positioned on one side of the connecting ring, which is close to the inner end of the connecting pipeline; the two ends of the top pressure plate are respectively a connecting end and a top pressure end along the axis direction of the connecting pipeline, the connecting end of each top pressure plate is fixedly connected with the connecting ring, and the top pressure end of each top pressure plate is positioned on one side, close to the inner end of the connecting pipeline, of the connecting end of the top pressure plate and close to the axis of the connecting pipeline; the connecting mechanism further comprises a limiting part and a boosting assembly, the limiting part and the boosting assembly are both positioned in the connecting pipeline, the limiting part limits the pressing part to move towards the direction close to the outer end of the connecting pipeline, the boosting assembly is positioned at one side of the pressing part close to the inner end of the connecting pipeline, the connecting pipeline limits the boosting assembly to move towards one side close to the inner end of the connecting pipeline, and the boosting assembly is abutted against the side face, away from the axis of the connecting pipeline, of the top pressure plate; when the connecting ring drives the top pressure plate to move towards the direction close to the inner end of the connecting pipeline, the top pressure plate enables the top pressure end of the top pressure plate to deform towards the direction close to the axis of the connecting pipeline and tightly press the feeding pipe, the discharging pipe or the mounting pipe under the top pressure of the boosting assembly.
Furthermore, the force boosting assembly comprises a first sliding ring, a second sliding ring and an alloy pipe, and the first sliding ring and the second sliding ring are coaxial with the connecting pipeline; the alloy pipe is provided with a plurality of alloy pipes, two ends of each alloy pipe are respectively connected with the first sliding ring and the second sliding ring, and two ends of each alloy pipe can respectively slide along the first sliding ring and the second sliding ring; the first sliding ring is abutted against the side face, away from the axis of the connecting pipeline, of the top pressure plate, and the connecting pipeline limits the second sliding ring to move towards the direction close to the inner end of the connecting pipeline; the alloy pipe is stretched at the high temperature of the polymer in the three-way pipeline, so that the distance between the first sliding ring and the second sliding ring is increased, and the first sliding ring moves towards the direction close to the outer end of the connecting pipeline and pushes the top pressing end of the top pressing plate to further tightly push the feeding pipe, the discharging pipe or the mounting pipe.
Further, the pushing column limits the connection to rotate around the axis of the pushing column; the first sliding ring is connected with the connecting ring through a telescopic sleeve rod, the telescopic sleeve rod allows the first sliding ring and the connecting ring to relatively slide along the axis of the connecting pipeline, and the telescopic sleeve rod limits the first sliding ring and the connecting ring to relatively rotate around the axis of the connecting pipeline; one end of the alloy pipe connected with the first sliding ring is a first end, one end of the alloy pipe connected with the second sliding ring is a second end, and the first end of the alloy pipe is positioned on the front side of the second end along a second circumferential direction in an initial state; the connecting mechanism also comprises a transmission ring, the transmission ring is positioned in the connecting pipeline, and the transmission ring is fixedly connected with the second sliding ring; the outer ring of the transmission ring is provided with a telescopic stop pillar, an elastic part is arranged between the telescopic stop pillar and the transmission ring, and the telescopic stop pillar extends out of the connecting pipeline under the action of the elastic part; when the threaded sleeve moves towards the outer end of the connecting pipeline and the pressing piece tightly pushes the feeding pipe, the discharging pipe or the mounting pipe, the telescopic stop pillar is matched with the threaded sleeve to enable the transmission ring to synchronously rotate along with the threaded sleeve; when the threads between the threaded sleeve and the connecting pipeline are loosened, the threaded sleeve rotates along a second circumferential direction opposite to the first circumferential direction, and the second sliding ring is driven by the telescopic stop pillar and the transmission ring to synchronously rotate along the second circumferential direction, so that the length of the alloy pipe in the axis direction of the connecting pipeline is increased, the distance between the first sliding ring and the second sliding ring is further increased, and the first sliding ring further pushes the top pressure plate to further push the top pressure end of the top pressure plate to tightly press the feeding pipe, the discharging pipe or the mounting pipe.
The feeding assembly further comprises a first driving piece, a first auger and a material guide pipe, the first auger is rotatably arranged in the feeding pipe, and the first auger is driven by the first driving piece to rotate and convey the polymer to the direction of the discharging pipe; the material guide pipe is communicated with the polymer reaction kettle and the material feeding pipe.
Furthermore, the discharging assembly also comprises a second driving piece, a second packing auger and a discharging pipe, and the discharging pipe is communicated with the discharging pipe and the outside; the second packing auger is rotatably arranged in the discharge pipe and is driven by the second driving piece to rotate and guide the polymer in the discharge pipe to be discharged from the discharge pipe.
Furthermore, a sleeve and a sealing ring are arranged in each connecting pipeline, the sleeve is coaxial with the connecting pipeline, one end of the sleeve, which is close to the connecting pipeline, is the inner end of the sleeve, and the inner end of the sleeve is fixedly and hermetically connected with the inner end of the inner ring of the connecting pipeline; the pressing piece, the limiting piece, the boosting assembly and the transmission ring are arranged between the sleeve and the connecting pipeline; the sealing ring is sleeved outside the sleeve and is positioned on one side of the boosting assembly and the transmission ring close to the inner end of the connecting pipeline; the feed pipe or the discharge pipe or the installation pipe is inserted between the sleeve and the sealing ring.
Furthermore, one end of the installation pipe, which is far away from the connecting pipeline, is the outer end of the installation pipe, the detection element is fixed on the installation pipe, and the detection part of the detection element is inserted between the feeding pipe and the discharging pipe through the installation pipe.
Furthermore, flexible loop bar includes sleeve pipe and loop bar, and the sleeve pipe sets up along the axial of connecting tube, and loop bar one end is connected with first slip ring, and the other end is installed in the sleeve pipe along the axial slidable of connecting tube.
The invention has the beneficial effects that: the feeding pipe, the discharging pipe and the mounting pipe of the polymer online viscosity detection device are respectively arranged in three connecting pipelines of a three-way pipeline, and the threaded sleeve moves from the inner end of the connecting pipeline to the outer end of the connecting pipeline when rotating along a first circumferential direction and enables the outer end of the connecting pipeline to be folded, so that the pressing piece tightly pushes the feeding pipe, the discharging pipe or the mounting pipe under the folding action of the connecting pipeline; and the boosting assembly enables the pressing piece to further tightly push the feeding pipe, the discharging pipe or the mounting pipe in the detection process and when the thread sleeve is loosened, so that the connection reliability is further improved.
Furthermore, the alloy pipe of the force-increasing assembly extends at the high temperature of the polymer in the three-way pipeline, so that the distance between the first sliding ring and the second sliding ring is increased, the first sliding ring moves towards the direction close to the outer end of the connecting pipeline and pushes the top pressing end of the top pressing plate to further tightly push the feeding pipe, the discharging pipe or the mounting pipe.
Further, when the threads between the threaded sleeve and the connecting pipeline are loosened, the threaded sleeve rotates along the second circumferential direction, the second sliding ring is driven by the telescopic retaining column and the transmission ring to synchronously rotate along the second circumferential direction, so that the length of the alloy pipe in the axial direction of the connecting pipeline is increased, the distance between the first sliding ring and the second sliding ring is further increased, and the first sliding ring further pushes the top pressure plate to enable the top pressure end of the top pressure plate to further tightly push the feeding pipe, the discharging pipe or the mounting pipe.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of an embodiment of the polymer on-line viscosity detection device of the present invention;
FIG. 2 is a front view of the overall structure of an embodiment of the polymer on-line viscosity detecting device of the present invention;
FIG. 3 is a side view of the overall structure of an embodiment of the polymer on-line viscosity measuring device of the present invention;
FIG. 4 is a sectional view taken along line A-A of FIG. 3;
FIG. 5 is an enlarged view at X in FIG. 4;
FIG. 6 is an exploded view of the overall structure of an embodiment of the polymer on-line viscosity detecting device of the present invention;
FIG. 7 is an enlarged view at Y in FIG. 6;
FIG. 8 is a schematic view of the initial state of the power-increasing assembly in an embodiment of the polymer in-line viscosity measuring apparatus of the present invention;
FIG. 9 is a schematic view of a force increasing assembly in an embodiment of the polymer in-line viscosity detecting apparatus of the present invention in a high temperature state;
FIG. 10 is a schematic view of a threaded sleeve structure of an embodiment of an in-line viscosity measuring device for polymers of the present invention;
FIG. 11 is a schematic structural view of a tee pipe in an embodiment of the apparatus for detecting the on-line viscosity of a polymer of the present invention;
in the figure: 100. a feed assembly; 110. a feed pipe; 120. a first driving member; 130. a first auger; 140. a material guide pipe; 200. a discharge assembly; 210. a discharge pipe; 220. a second driving member; 230. a second auger; 240. a discharge pipe; 300. a detection component; 310. installing a pipe; 320. a detection element; 400. a three-way pipeline; 410. connecting a pipeline; 411. a trench; 412. a deformation section; 413. pushing the column; 420. a sleeve; 430. a seal ring; 500. a connecting mechanism; 510. a threaded sleeve; 511. a mounting ring; 512. a connecting pipe; 520. a compression member; 521. a connecting ring; 522. a top pressing plate; 530. a limiting member; 540. a force increasing component; 541. a first slip ring; 542. a second slip ring; 543. an alloy pipe; 550. a telescopic loop bar; 551. a sleeve; 552. a loop bar; 560. a drive ring; 561. a telescopic catch column.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the polymer on-line viscosity detection device of the invention is used for detecting the polymer processed in a reaction kettle, as shown in figures 1 to 11, and comprises a feeding component 100, a discharging component 200, a detection component 300, a three-way pipeline 400 and a connecting mechanism 500,
the three-way pipeline 400 is fixedly arranged in the reaction kettle, the three-way pipeline 400 comprises three connecting pipelines 410, one ends of the three connecting pipelines 410 are communicated, the three connecting pipelines are fixed inside, one ends of the three connecting pipelines 410 are inner ends of the connecting pipelines 410, the other ends of the three connecting pipelines 410 are outer ends of the connecting pipelines 410, and the outer ends of the connecting pipelines 410 can be folded under the action of external force; the two connecting pipelines 410 are both horizontally arranged, the other connecting pipeline 410 is positioned above the inner ends of the two horizontally arranged connecting pipelines 410, the feeding pipe 110 and the discharging pipe 210 are respectively arranged on the two horizontally arranged connecting pipelines 410, and the mounting pipe 310 is arranged on the other connecting pipeline 410;
three connecting mechanisms 500 are provided, each connecting mechanism 500 comprises a threaded sleeve 510, a pressing piece 520 and a force-increasing assembly 540, and the threaded sleeve 510 is sleeved outside the connecting pipeline 410 and is in threaded fit with the connecting pipeline 410; the pressing member 520 is disposed inside the connection pipe 410; when the threaded sleeve 510 rotates in the first circumferential direction, the threaded sleeve moves from the inner end of the connecting pipe 410 to the outer end of the connecting pipe 410, the outer end of the connecting pipe 410 is closed, and the pressing member 520 tightly pushes the feeding pipe 110, the discharging pipe 210 or the installation pipe 310 under the closing action of the connecting pipe 410;
In this embodiment, the outer diameter of the connecting pipe 410 has a tapered section gradually increasing from inside to outside, the outer circumference of the connecting pipe 410 is provided with a plurality of grooves 411 communicating with the outer end face of the connecting pipe 410, each groove 411 extends to the tapered section of the connecting pipe 410 along the axial direction of the connecting pipe 410 and penetrates through the circumferential wall of the connecting pipe 410, the portion between two adjacent grooves 411 of the connecting pipe 410 is a deformation portion 412, and in the process that the threaded sleeve 510 moves from the inner end of the connecting pipe 410 to the outer end of the connecting pipe 410, the tapered section of the connecting pipe 410 is pressed to enable the plurality of deformation portions 412 to be inwardly folded under the action of an external force.
In this embodiment, the pressing member 520 includes a connection ring 521 and a plurality of pressing plates 522, the connection ring 521 is coaxial with the connection pipe 410, the inner ring of the deformation portion 412 of the connection pipe 410 is provided with a pushing post 413, the outer ring of the connection ring 521 is provided with an inclined surface abutting against the pushing post 413, and the pushing post 413 pushes the inclined surface on the connection ring 521 when the deformation portion 412 is inwardly folded, so that the connection ring 521 moves toward the inner end of the connection pipe 410 or tends to move toward the inner end of the connection pipe 410; the plurality of top pressure plates 522 are uniformly distributed at intervals around the circumference of the connecting ring 521, and the plurality of top pressure plates 522 are all positioned on one side of the connecting ring 521, which is close to the inner end of the connecting pipeline 410; along the axial direction of the connecting pipeline 410, two ends of the top pressure plate 522 are respectively a connecting end and a top pressure end, the connecting end of each top pressure plate 522 is fixedly connected with the connecting ring 521, and the top pressure end of the top pressure plate 522 is located on one side of the connecting end of the top pressure plate 522, which is close to the inner end of the connecting pipeline 410, and is close to one side of the axial line of the connecting pipeline 410. The connecting mechanism 500 further comprises a limiting member 530, the limiting member 530 and the force-increasing assembly 540 are both located in the connecting pipe 410, the connecting pipe 410 limits the pressing member 520 to move towards the direction close to the outer end of the connecting pipe 410 through the limiting member 530, the force-increasing assembly 540 is located on one side of the pressing member 520 close to the inner end of the connecting pipe 410, and the connecting pipe 410 limits the force-increasing assembly 540 to move towards one side close to the inner end of the connecting pipe 410, specifically, a ring platform protruding towards the inside of the connecting pipe 410 is arranged in the connecting pipe 410, and the force-increasing assembly 540 is located on one side of the ring platform away from the inner end of the connecting pipe 410 and abuts against the ring platform; the force increasing component 540 is abutted with the side surface of the top pressure plate 522, which faces away from the axis of the connecting pipeline 410; when the connection ring 521 moves the pressing plate 522 toward the inner end of the connection pipe 410, the pressing plate 522 presses against the force-increasing assembly 540 to deform the pressing end of the pressing plate 522 toward the axial direction of the connection pipe 410 and press against the feeding pipe 110, the discharging pipe 210, or the installation pipe 310.
In the present embodiment, the force increasing assembly 540 includes a first sliding ring 541, a second sliding ring 542 and an alloy tube 543, and the first sliding ring 541 and the second sliding ring 542 are coaxial with the connecting pipe 410; a plurality of alloy tubes 543 are provided, two ends of each alloy tube 543 are respectively connected with the first sliding ring 541 and the second sliding ring 542, and two ends of each alloy tube 543 can respectively slide along the first sliding ring 541 and the second sliding ring 542; the first sliding ring 541 is abutted with the side surface of the top pressure plate 522 departing from the axis of the connecting pipeline 410, and the second sliding ring 542 is abutted with the annular table; the alloy tube 543 is made of memory metal, the alloy tube 543 is elongated at high temperature of the polymer in the tee pipe 400, so that the distance between the first sliding ring 541 and the second sliding ring 542 is increased, the first sliding ring 541 moves towards the direction close to the outer end of the connecting pipe 410 and pushes the top end of the top pressure plate 522 to further push the feeding pipe 110, the discharging pipe 210 or the installation pipe 310.
In the present embodiment, the pushing column 413 limits the rotation of the connection ring 521 around the axis thereof, specifically, the outer circumference of the connection ring 521 is provided with a groove, the bottom of the groove is an inclined surface abutting against the pushing column 413, and the pushing column 413 limits the rotation of the connection ring 521 under the limitation of the side wall of the groove. The first sliding ring 541 and the connecting ring 521 are connected by a telescopic sleeve rod 550, the telescopic sleeve rod 550 allows the first sliding ring 541 and the connecting ring 521 to slide relatively along the axis of the connecting pipe 410, and the telescopic sleeve rod 550 restricts the first sliding ring 541 and the connecting ring 521 from rotating relatively around the axis of the connecting pipe 410; the end of the alloy tube 543 connected to the first slip ring 541 is a first end, the end of the alloy tube 543 connected to the second slip ring 542 is a second end, and the first end of the alloy tube 543 is located in front of the second end along the second circumferential direction in the initial state. The connecting mechanism 500 further comprises a driving ring 560, the driving ring 560 is located in the connecting pipe 410, and the driving ring 560 is fixedly connected with the second sliding ring 542; the outer ring of the transmission ring 560 is provided with a telescopic catch 561, an elastic piece is arranged between the telescopic catch 561 and the transmission ring 560, the telescopic catch 561 extends out of the connection pipeline 410 under the action of the elastic piece, specifically, an avoidance hole penetrating through the peripheral wall of the connection pipeline 410 is arranged on the outer circumference of the connection pipeline 410, the telescopic catch 561 penetrates out of the avoidance hole under the action of the elastic piece, and the avoidance hole allows the telescopic catch 561 to rotate around the axis of the connection pipeline 410 by a preset angle; when the threaded sleeve 510 moves towards the outer end of the connecting pipeline 410 until the pressing piece 520 tightly presses against the feeding pipe 110, the discharging pipe 210 or the mounting pipe 310, the telescopic catch 561 is matched with the threaded sleeve 510 to enable the transmission ring 560 to synchronously rotate along with the threaded sleeve 510; specifically, a mounting ring 511 coaxial with the threaded sleeve 510 is arranged on one side of the threaded sleeve 510 close to the inner end of the connecting pipe 410, a connecting pipe 512 radially arranged along the mounting ring 511 is arranged on the inner ring of the mounting ring 511, the threaded sleeve 510 presses a telescopic retaining column 561 back into the connecting pipe 410 when moving towards the outer end of the connecting pipe 410, and when the threaded sleeve 510 moves to a pressing member 520 to tightly press against the feeding pipe 110, the discharging pipe 210 or the mounting pipe 310, the telescopic retaining column 561 extends out of the connecting pipe 410 and is inserted into the connecting pipe 512, so that the transmission ring 560 synchronously rotates along with the threaded sleeve 510. When the thread between the threaded sleeve 510 and the connecting pipe 410 is loosened, the threaded sleeve 510 rotates in a second circumferential direction opposite to the first circumferential direction, and the second sliding ring 542 is driven by the telescopic retaining column 561 and the transmission ring 560 to synchronously rotate in the second circumferential direction, so that the length of the alloy pipe 543 in the axial direction of the connecting pipe 410 is increased, the distance between the first sliding ring 541 and the second sliding ring 542 is further increased, and the first sliding ring 541 further pushes the top pressure plate 522 so that the top pressure end of the top pressure plate 522 further pushes the feeding pipe 110, the discharging pipe 210 or the mounting pipe 310.
In the present embodiment; the feeding assembly 100 further comprises a first driving member 120, a first auger 130 and a material guiding pipe 140, the first driving member 120 is a motor, the first auger 130 is rotatably installed in the feeding pipe 110, and the first auger 130 is driven by the first driving member 120 to rotate and convey the polymer towards the direction of the discharging pipe 210; the material guiding pipe 140 is connected to the polymer reactor and the material feeding pipe 110, and a valve is disposed in the material guiding pipe 140 for controlling the polymer in the reactor to enter the material feeding pipe 110.
In this embodiment, the discharging assembly 200 further includes a second driving member 220, a second packing auger 230 and a discharging pipe 240, wherein the discharging pipe 240 is communicated with the discharging pipe 210 and the outside; the second driving member 220 is a motor, the second packing auger 230 is rotatably installed in the discharge pipe 210, and the second packing auger 230 is driven by the second driving member 220 to rotate and guide the polymer in the discharge pipe 210 to be discharged from the discharge pipe 240, and the discharged polymer can be returned to the reaction kettle for continuous use.
In this embodiment, a sleeve 420 and a sealing ring 430 are disposed in each connecting pipe 410, the sleeve 420 is coaxial with the connecting pipe 410, one end of the sleeve 420 close to the connecting pipe 410 is an inner end of the sleeve 420, and the inner end of the sleeve 420 is fixedly and hermetically connected with an inner end of an inner ring of the connecting pipe 410; the pressing member 520, the limiting member 530, the force increasing assembly 540 and the transmission ring 560 are all arranged between the sleeve 420 and the connecting pipe 410; the sealing ring 430 is sleeved outside the sleeve 420, and the sealing ring 430 is positioned on one side of the power-increasing assembly 540 and the transmission ring 560 close to the inner end of the connecting pipeline 410; the inlet pipe 110 or the outlet pipe 210 or the installation pipe 310 is inserted between the sleeve 420 and the sealing ring 430.
In this embodiment, an end of the installation pipe 310 remote from the connection pipe 410 is an outer end of the installation pipe 310, the sensing element 320 is fixed to the installation pipe 310 and the sensing part of the sensing element 320 is inserted between the feeding pipe 110 and the discharging pipe 210 through the installation pipe 310.
In this embodiment, the telescopic rod 550 includes a sleeve 551 and a rod 552, the sleeve 551 is disposed along the axial direction of the connecting duct 410, one end of the rod 552 is connected to the first slip ring 541, and the other end is slidably mounted on the sleeve 551 along the axial direction of the connecting duct 410.
In this embodiment, the outer end of the connecting pipe 410 is a tapered structure whose diameter gradually decreases from the inner end to the outer end, the outer circumference of the limiting member 530 is provided with a tapered surface adapted to the tapered structure at the outer end of the connecting pipe 410, and the tapered structure at the outer end of the connecting pipe 410 limits the limiting member 530 to move in a direction away from the inner end of the connecting pipe 410; the inner end of the limiting member 530 abuts against the driving ring 560 to limit the limiting member 530 from moving toward the inner end of the connecting pipe 410.
Before the polymer on-line viscosity detection device is used, the feeding pipe 110, the discharging pipe 210 and the mounting pipe 310 are respectively inserted between the sleeve 420 and the sealing ring 430 of the corresponding connecting pipeline 410; the thread sleeves 510 outside the three connecting pipelines 410 are respectively rotated along the first circumferential direction, so that the thread sleeves 510 move from the inner ends of the connecting pipelines 410 to the outer ends of the connecting pipelines 410, the diameter-variable sections of the connecting pipelines 410 are pressed, the deformation parts 412 can be folded inwards under the action of external force, when the deformation parts 412 are folded inwards, the inclined surfaces on the connecting rings 521 are pushed by the pushing columns 413, the connecting rings 521 drive the pressing plates 522 to move towards the direction close to the inner ends of the connecting pipelines 410, and the force-increasing assembly 540 prevents the pressing plates 522 from moving towards the direction close to the inner ends of the connecting pipelines 410, so that the pressing ends of the pressing plates 522 are deformed towards the direction close to the axis of the connecting pipelines 410 and tightly push the feeding pipe 110, the discharging pipe 210 or the mounting pipe 310; at this time, the telescopic pin 561 is inserted into the connection pipe 512 by the elastic member.
When the viscosity of the polymer in the reaction kettle needs to be detected, a valve in the material guiding pipe 140 is opened, the polymer in the reaction kettle enters the material feeding pipe 110, the first driving part 120, the detecting element 320 and the second driving part 220 are started, and the first packing auger 130 is driven by the first driving part 120 to rotate and convey the polymer to a position between the material feeding pipe 110 and the material discharging pipe 210; the viscosity of the polymer between the feeding pipe 110 and the discharging pipe 210 is detected by the detecting member 320, and then the second auger 230 is rotated by the second driving member 220 and discharges the polymer from the discharging pipe 240.
After the polymer enters the connecting pipe 410, because the temperature of the polymer is higher in the reaction process, the polymer of the alloy pipe 543 is elongated at high temperature, so that the distance between the first sliding ring 541 and the second sliding ring 542 is increased, the first sliding ring 541 moves towards the direction close to the outer end of the connecting pipe 410 and pushes the top end of the top pressure plate 522 to further push the feeding pipe 110, the discharging pipe 210 or the installation pipe 310.
With the increase of the number of use times, the threaded connection between the threaded sleeve 510 and the connecting pipe 410 is easy to loosen, the threaded sleeve 510 rotates along the second circumferential direction, and the second sliding ring 542 is driven by the telescopic retaining column 561 and the transmission ring 560 to synchronously rotate along the second circumferential direction, so that the length of the alloy pipe 543 in the axial direction of the connecting pipe 410 is increased, the distance between the first sliding ring 541 and the second sliding ring 542 is further increased, the first sliding ring 541 further pushes the top pressure plate 522 to further push the top pressure end of the top pressure plate 522 against the feeding pipe 110, the discharging pipe 210 or the mounting pipe 310, and thus the top pressure plate 522 can still push the feeding pipe 110, the discharging pipe 210 or the mounting pipe 310 under the condition that the threaded sleeve 510 and the connecting pipe 410 are loosened, so that the connection is more stable.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. An online polymer viscosity detection device is used for detecting polymers processed in a reaction kettle, and is characterized in that: the device comprises a feeding assembly, a discharging assembly, a detection assembly, a three-way pipeline and a connecting mechanism, wherein the feeding assembly comprises a feeding pipe, the discharging assembly comprises a discharging pipe, and the detection assembly comprises a mounting pipe and a detection element; the three-way pipeline comprises three connecting pipelines, wherein one ends of the three connecting pipelines are communicated and the three connecting pipelines are fixed inside the three connecting pipelines, the fixed ends of the three connecting pipelines are the inner ends of the connecting pipelines, the other ends of the three connecting pipelines are the outer ends of the connecting pipelines, and the outer ends of the connecting pipelines can be folded under the action of external force; the feeding pipe, the discharging pipe and the mounting pipe are respectively inserted into the corresponding connecting pipelines from the outer ends of the three connecting pipelines; the number of the connecting mechanisms is three, each connecting mechanism comprises a threaded sleeve, a pressing piece and a boosting assembly, and the threaded sleeve is sleeved outside the connecting pipeline and is in threaded fit with the connecting pipeline; the pressing piece is arranged in the connecting pipeline; when the threaded sleeve rotates along the first circumferential direction, the threaded sleeve moves from the inner end of the connecting pipeline to the outer end of the connecting pipeline and enables the outer end of the connecting pipeline to be folded, and the pressing piece tightly pushes the feeding pipe, the discharging pipe or the mounting pipe under the folding action of the connecting pipeline; the boosting assembly enables the pressing piece to further tightly push the feeding pipe, the discharging pipe or the mounting pipe in the detection process;
the outer diameter of the connecting pipeline is provided with a reducing section which gradually increases from inside to outside, the outer circumference of the connecting pipeline is provided with a plurality of grooves communicated with the outer end face of the connecting pipeline, each groove axially extends to the reducing section of the connecting pipeline and penetrates through the circumferential wall of the connecting pipeline, the part between every two adjacent grooves of the connecting pipeline is a deformation part, and in the process that the threaded sleeve moves from the inner end of the connecting pipeline to the outer end of the connecting pipeline, the reducing section of the connecting pipeline is extruded to enable the plurality of deformation parts to be folded inwards under the action of external force;
the pressing piece comprises a connecting ring and a plurality of top pressure plates, the connecting ring is coaxial with the connecting pipeline, a top pushing column is arranged on the inner ring of the deformation part of the connecting pipeline, an inclined plane abutted against the top pushing column is arranged on the outer ring of the connecting ring, and the inclined plane on the connecting ring is pushed when the top pushing column is folded inwards along with the deformation part, so that the connecting ring moves towards the direction close to the inner end of the connecting pipeline or tends to move towards the direction close to the inner end of the connecting pipeline; the plurality of top pressure plates are uniformly distributed at intervals around the circumferential direction of the connecting ring, and are positioned on one side of the connecting ring, which is close to the inner end of the connecting pipeline; along the axis direction of the connecting pipeline, two ends of the top pressure plate are respectively a connecting end and a top pressure end, each connecting end of the top pressure plate is fixedly connected with the connecting ring, and the top pressure end of the top pressure plate is positioned on one side, close to the inner end of the connecting pipeline, of the connecting end of the top pressure plate and is close to the axis of the connecting pipeline; the connecting mechanism further comprises a limiting part and a boosting assembly, the limiting part and the boosting assembly are both positioned in the connecting pipeline, the limiting part limits the pressing part to move towards the direction close to the outer end of the connecting pipeline, the boosting assembly is positioned at one side of the pressing part close to the inner end of the connecting pipeline, the connecting pipeline limits the boosting assembly to move towards one side close to the inner end of the connecting pipeline, and the boosting assembly is abutted against the side face, away from the axis of the connecting pipeline, of the top pressure plate; when the connecting ring drives the jacking plate to move towards the direction close to the inner end of the connecting pipeline, the jacking plate enables the jacking end of the jacking plate to deform towards the axial direction close to the connecting pipeline under the jacking of the boosting assembly and jacks up the feeding pipe, the discharging pipe or the mounting pipe.
2. The polymer on-line viscosity detection device of claim 1, wherein: the force-increasing assembly comprises a first sliding ring, a second sliding ring and an alloy pipe, and the first sliding ring and the second sliding ring are coaxial with the connecting pipeline; the alloy pipe is provided with a plurality of alloy pipes, two ends of each alloy pipe are respectively connected with the first sliding ring and the second sliding ring, and two ends of each alloy pipe can respectively slide along the first sliding ring and the second sliding ring; the first sliding ring is abutted against the side face, deviating from the axis of the connecting pipeline, of the top pressure plate, and the connecting pipeline limits the second sliding ring to move towards the direction close to the inner end of the connecting pipeline; the alloy pipe is stretched at the high temperature of the polymer in the three-way pipeline, so that the distance between the first sliding ring and the second sliding ring is increased, and the first sliding ring moves towards the direction close to the outer end of the connecting pipeline and pushes the top pressing end of the top pressing plate to further tightly push the feeding pipe, the discharging pipe or the mounting pipe.
3. The on-line polymer viscosity detecting device of claim 2, wherein: the pushing column limits the connection to rotate around the axis of the pushing column; the first sliding ring is connected with the connecting ring through a telescopic sleeve rod, the telescopic sleeve rod allows the first sliding ring and the connecting ring to relatively slide along the axis of the connecting pipeline, and the telescopic sleeve rod limits the first sliding ring and the connecting ring to relatively rotate around the axis of the connecting pipeline; one end of the alloy pipe connected with the first sliding ring is a first end, one end of the alloy pipe connected with the second sliding ring is a second end, and the first end of the alloy pipe is positioned on the front side of the second end in the second circumferential direction in the initial state; the connecting mechanism also comprises a transmission ring, the transmission ring is positioned in the connecting pipeline, and the transmission ring is fixedly connected with the second sliding ring; the outer ring of the transmission ring is provided with a telescopic retaining pillar, an elastic part is arranged between the telescopic retaining pillar and the transmission ring, and the telescopic retaining pillar extends out of the connecting pipeline under the action of the elastic part; when the threaded sleeve moves to the outer end of the connecting pipeline, the pressing piece tightly pushes the feeding pipe, the discharging pipe or the mounting pipe, and the telescopic retaining column is matched with the threaded sleeve to enable the transmission ring to synchronously rotate along with the threaded sleeve; when the threads between the threaded sleeve and the connecting pipeline are loosened, the threaded sleeve rotates along a second circumferential direction opposite to the first circumferential direction, and the second sliding ring is driven by the telescopic stop pillar and the transmission ring to synchronously rotate along the second circumferential direction, so that the length of the alloy pipe in the axis direction of the connecting pipeline is increased, the distance between the first sliding ring and the second sliding ring is further increased, and the first sliding ring further pushes the top pressure plate to further push the top pressure end of the top pressure plate to tightly press the feeding pipe, the discharging pipe or the mounting pipe.
4. The on-line polymer viscosity detecting device of claim 1, wherein: the feeding assembly further comprises a first driving part, a first auger and a material guide pipe, the first auger is rotatably arranged in the feeding pipe, and the first auger is driven by the first driving part to rotate and conveys the polymer to the direction of the discharging pipe; the material guide pipe is communicated with the polymer reaction kettle and the material feeding pipe.
5. The polymer on-line viscosity detection device of claim 1, wherein: the discharging assembly further comprises a second driving piece, a second packing auger and a discharging pipe, and the discharging pipe is communicated with the discharging pipe and the outside; the second packing auger is rotatably arranged in the discharge pipe, and the second packing auger is driven by the second driving piece to rotate and guide the polymer in the discharge pipe to be discharged from the discharge pipe.
6. The on-line polymer viscosity detecting device of claim 3, wherein: a sleeve and a sealing ring are arranged in each connecting pipeline, the sleeve is coaxial with the connecting pipeline, one end of the sleeve close to the connecting pipeline is the inner end of the sleeve, and the inner end of the sleeve is fixedly and hermetically connected with the inner end of the inner ring of the connecting pipeline; the pressing piece, the limiting piece, the boosting assembly and the transmission ring are arranged between the sleeve and the connecting pipeline; the sealing ring is sleeved outside the sleeve and is positioned on one side of the boosting assembly and the transmission ring close to the inner end of the connecting pipeline; the feed pipe or the discharge pipe or the installation pipe is inserted between the sleeve and the sealing ring.
7. The on-line polymer viscosity detecting device of claim 1, wherein: the one end of keeping away from the connecting tube of installation pipe is the outer end of installation pipe, and detecting element is fixed in the installation pipe and detecting element's detection portion inserts between inlet pipe and the discharging pipe through the installation pipe.
8. The on-line polymer viscosity detecting device of claim 3, wherein: the telescopic loop bar comprises a sleeve and a loop bar, the sleeve is arranged along the axial direction of the connecting pipeline, one end of the loop bar is connected with the first sliding ring, and the other end of the loop bar is arranged in the sleeve along the axial sliding direction of the connecting pipeline.
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| CN202210609473.6A CN114689466B (en) | 2022-05-31 | 2022-05-31 | Online polymer viscosity detection device |
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| CN202210609473.6A CN114689466B (en) | 2022-05-31 | 2022-05-31 | Online polymer viscosity detection device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB641966A (en) * | 1942-03-26 | 1950-08-23 | K C M Company | Improvements in or relating to viscosimeters |
| GB1310890A (en) * | 1969-12-10 | 1973-03-21 | Exxon Research Engineering Co | Determination of viscosity of fluids |
| DE3230246C2 (en) * | 1982-08-13 | 1985-06-27 | Kiesewetter, Holger, Dr., 5100 Aachen | Device for determining the viscosity of liquids, in particular blood plasma |
| US8499618B2 (en) * | 2009-09-25 | 2013-08-06 | Bio-Visco Inc. | Device for automatically measuring viscosity of liquid |
| CN206399766U (en) * | 2017-01-06 | 2017-08-11 | 欧瑞康巴马格惠通（扬州）工程有限公司 | A kind of device for measuring viscosity of high-viscosity material |
| CN111537391A (en) * | 2020-04-30 | 2020-08-14 | 河南阿尔法科学仪器有限公司 | High-precision sample inlet unit of automatic viscometer and automatic sample injector of viscometer |
| CN212008212U (en) * | 2020-05-15 | 2020-11-24 | 山东省惠诺药业有限公司 | Online viscosity detection device of heparin sodium |
| CN215866253U (en) * | 2021-09-14 | 2022-02-18 | 扬州惠特科技有限公司 | Viscosity on-line monitoring device for recycled polyester granulation |
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