CN115434917A

CN115434917A - Device for conveying multiphase fluid

Info

Publication number: CN115434917A
Application number: CN202211224904.3A
Authority: CN
Inventors: 董虎; 李开兵; 张彦明; 杨文琪
Original assignee: Sanlianpump Industry Co ltd
Current assignee: Sanlianpump Industry Co ltd
Priority date: 2022-10-09
Filing date: 2022-10-09
Publication date: 2022-12-06
Anticipated expiration: 2042-10-09
Also published as: CN115434917B

Abstract

The invention discloses a device for conveying multiphase fluid, which relates to the technical field of vertical slurry pumps and comprises a pump body, wherein a fixed vent pipe is arranged at a pump inlet of the pump body, a telescopic mechanism is arranged at the end part of the fixed vent pipe, the top of the telescopic mechanism is rotatably connected with a movable vent pipe, the movable vent pipe penetrates through an adjusting mechanism arranged on the pump body, an inclined buffer belt is arranged below the movable vent pipe, and the buffer belt is positioned in a pump pool. Air is purged from the suction inlet and impeller inlet by using fixed draft tubes, movable draft tubes, and air is released as much as possible by using an inclined buffer zone to allow for more lateral dispersion and a large area of slurry. Cooperation through using buffering area and ventilation pipe cooperates at flaring suction inlet and suitable shell direction maximize release air to guaranteed the smoothness that the foam was carried, avoided the pump pond overflow, the pipe blockage, the whole operation of pump is stable, has avoided the emergence of cavitation.

Description

Device for conveying multiphase fluid

Technical Field

The invention relates to the technical field of vertical slurry pumps, in particular to a device for conveying multiphase fluid.

Background

In the flotation process of a mine, medium components are complex, the medium is often composed of solid, liquid and gas three-phase flows, the traditional horizontal slurry pump generally considers large foam factors, the inlet of the pump is enlarged, and a leading-in impeller is adopted, so that the suction amount of foam is increased, the overflow capacity of the pump is not strong, the pump is easy to block, the flow is insufficient, and the production is seriously influenced. In the process of conveying multiphase fluid by a traditional vertical slurry pump, a funnel form is adopted to be connected with a suction inlet of the pump, the suction inlet of the pump adopts a tangential inlet, self-ventilation is realized, local vortex on the free surface of the funnel is realized, the liquid level of a groove body is too low, air in slurry is entrained in the process of sucking the slurry by the pump, and thus additional air is involved to influence the cavitation performance of the pump.

Disclosure of Invention

The invention aims to provide a device for conveying multiphase fluid, which solves the following technical problems: the traditional horizontal slurry pump increases the inlet of the pump and adopts the leading-in impeller in the process of conveying multiphase fluid, thereby increasing the suction volume of foam, easily causing the pump to be blocked, causing insufficient flow and influencing the cavitation performance of the pump.

The purpose of the invention can be realized by the following technical scheme:

the device for conveying the multiphase fluid comprises a pump body, wherein a fixed vent pipe is arranged at a pump inlet of the pump body, a telescopic mechanism is arranged at the end part of the fixed vent pipe, the top of the telescopic mechanism is rotatably connected with a movable vent pipe, the movable vent pipe penetrates through an adjusting mechanism arranged on the pump body, an inclined buffer belt is arranged below the movable vent pipe, and the buffer belt is positioned in a pump pool.

As a further scheme of the invention: adjustment mechanism includes elevating system, elevating system installs the lower wall on the pump body including rotating, the through-hole has been seted up at the lower wall middle part, the bottom fixed mounting of lower wall has servo motor, servo motor's output shaft runs through the lower wall and is connected with the action wheel, the action wheel rotates and installs at the lower wall top, the top of lower wall still rotates and is connected with a plurality of follow driving wheels that are the circumference setting, the action wheel has the belt with from the outer cover coupling of driving wheel, the bottom from the driving wheel is connected with the winding wheel of lower wall inside setting through the pivot, the winding has wire rope on the winding wheel, and wire rope runs through the wire winding hole of seting up on the lower wall and is connected with telescopic machanism.

As a further scheme of the invention: the lifting mechanism further comprises an upper disc, the upper disc is of a hollow structure, a through hole is formed in the middle of the upper disc, a plurality of insertion rods are uniformly installed on the bottom of the upper disc, and the insertion rods are fixedly inserted into the lower disc in an inserting mode.

As a further scheme of the invention: adjustment mechanism still includes the fixture of joint on elevating system, fixture includes arc one and arc two, peg graft between arc one and the arc two and connect, arc one and arc two form hollow circular structure, the inside of arc one and arc two all is provided with the cylinder, fixed mounting has the promotion piece on the piston rod of cylinder, promote piece and arc one and two sliding connection of arc, the swing joint has the swing joint that the slope set up on the promotion piece, swing joint has the block rubber on the swing joint, the bottom of block rubber still swing joint has the swing joint support bar that the slope set up, swing joint support bar and arc one and two swing joint of arc.

As a further scheme of the invention: the clamping plate and the inserting plate are arranged on the two sides of the first arc plate and the second arc plate respectively, a bolt shaft is connected to the inserting plate through a spring, and the bolt shaft is matched with a bolt shaft hole formed in the clamping plate.

As a further scheme of the invention: the top fixed mounting of arc first has the arc fixed block, the one end swing joint of arc fixed block has the screw rod, the top swing joint of arc second has the arc movable block, the opening has been seted up to the tip of arc movable block, the screw rod passes the opening and passes through the nut fixed.

As a further scheme of the invention: clamping strips are fixedly arranged on two sides of the first arc-shaped plate and the second arc-shaped plate, and the clamping strips are matched with clamping grooves formed in two sides of the inner wall of the lower plate and the inner wall of the upper plate.

As a further scheme of the invention: the draw-in groove is the trapezoidal recess of handstand, just all be provided with the rubber pad on the inner wall of trapezoidal recess, the card strip is the trapezium structure.

As a further scheme of the invention: telescopic machanism includes lower flange dish, bellows, goes up the ring flange, the bottom and the fixed ventilation pipe fixed connection of lower flange dish, the top fixed mounting of lower flange dish has bellows, bellows's top fixed mounting has last ring flange, it is connected with movable ventilation pipe to rotate on the ring flange, just go up and be provided with rings on the ring flange.

As a further scheme of the invention: a plurality of teeth are uniformly arranged on the peripheral surface of the upper disc, a driving motor is also arranged on the pump body, and a gear is fixedly mounted on an output shaft of the driving motor and is in meshed connection with the teeth.

The invention has the beneficial effects that:

this application is optimized through the configuration of pump import and export pipeline, has designed this set of device, disposes the buffering area through the tye, adopts the formula of buryying to lead the gas port, through air pipe exhaust steam, exhaust air as much as possible. The use of a sloped buffer zone allows for more lateral dispersion and a larger area of slurry to release as much air as possible. The 'dead zone' under the buffering area allows extra air to be released, the ventilation pipe assists in clearing air from the suction inlet and the impeller inlet, the water flow tangential inlet is prevented from reducing air entrainment, air is released in a maximized mode through the use of the buffering area, the ventilation pipe, the flaring suction inlet and the proper shell direction, smoothness of foam conveying is guaranteed, overflow of a pump pool is avoided, pipelines are blocked, the whole operation of the pump is stable, and cavitation is avoided.

According to the movable ventilating pipe, the upper flange plate is driven to move upwards through the winding wheel, the telescopic hose is driven to stretch, the height of the whole movable ventilating pipe can be adjusted, the height of the movable ventilating pipe and the height of a pump pool can be adjusted, the movable ventilating pipe is convenient to use, and the practicability is high; the clamping mechanism is convenient for pushing the rubber block to fix the movable ventilating pipe, so that on one hand, the movable ventilating pipe can be limited again, and meanwhile, the fixing effect can be achieved, the movable ventilating pipe is prevented from shaking in the using process, and the movable ventilating pipes with different diameters can be fixed conveniently; finally, the driving motor drives the gear to rotate, so that the upper disc is driven to rotate through the teeth, the integral lifting mechanism and the clamping mechanism are driven to rotate, and the movable ventilation pipe is driven to rotate, so that the angle of the movable ventilation pipe can be adjusted conveniently, and the use is convenient; the angle and the height of the movable ventilation pipe can be conveniently adjusted by the adjusting mechanism, so that the application range of the movable ventilation pipe is wider. And the structure is a detachable structure, so that the replacement and the maintenance are convenient.

Drawings

The invention will be further described with reference to the accompanying drawings.

FIG. 1 is a schematic plan view of the present invention as a whole;

FIG. 2 is a schematic view of the overall construction of the adjustment mechanism of the present invention;

FIG. 3 is a schematic view of the overall construction of the lifting mechanism of the present invention;

FIG. 4 is an exploded view of the lift mechanism of the present invention;

FIG. 5 is a schematic view of the overall construction of the clamping mechanism of the present invention;

FIG. 6 is a schematic view of the overall construction of the telescopic mechanism of the present invention;

fig. 7 is a schematic view of the overall structure of another lifting mechanism of the present invention.

In the figure: 1. a pump body; 2. fixing the ventilation pipe; 3. a movable vent pipe; 4. a buffer zone; 5. an adjustment mechanism; 51. a lifting mechanism; 52. a clamping mechanism; 53. teeth; 511. a bottom wall; 512. hanging the plate; 513. a card slot; 514. a wire winding hole; 515. a servo motor; 516. a driving wheel; 517. a driven wheel; 518. a belt; 519. a winding wheel; 520. inserting a rod; 521. a first arc plate; 522. a second arc-shaped plate; 523. a clamping plate; 524. a latch shaft; 525. a plugboard; 526. clamping the strip; 527. a cylinder; 528. a pushing block; 529. a movable support bar; 530. a rubber block; 531. a movable connecting rod; 532. an arc-shaped fixed block; 533. an arc-shaped movable block; 534. a screw; 6. a telescoping mechanism; 61. a lower flange plate; 62. a flexible hose; 63. and an upper flange plate.

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.

Example 1

Referring to fig. 1, the invention is a device for conveying multiphase fluid, comprising a pump body 1, wherein the pump body 1 is a horizontal slurry pump in the prior art, a fixed vent pipe 2 is arranged at a pump inlet of the pump body 1, a telescopic mechanism 6 is arranged at an end part of the fixed vent pipe 2, a movable vent pipe 3 is rotatably connected to the top of the telescopic mechanism 6, the movable vent pipe 3 penetrates through an adjusting mechanism 5 arranged on the pump body 1, an inclined buffer zone 4 is arranged below the movable vent pipe 3, and the buffer zone 4 is located in a pump pool.

The structure is to remove air from the suction inlet and impeller inlet by using fixed draft tube 2, movable draft tube 3, and to release air as much as possible by using inclined buffer zone 4 to allow more lateral dispersion and large area of slurry. Through the cooperation that uses buffering area and ventilation pipe at flaring suction inlet and suitable shell direction maximize release air to guaranteed the smoothness that the foam was carried, avoided the pump pond overflow, the pipeline blocks up, and the whole operation of pump is stable, has avoided the emergence of cavitation.

Example 2

Referring to fig. 2-4, the adjusting mechanism 5 includes a lifting mechanism 51, the lifting mechanism 51 includes a lower disc 511 rotatably mounted on the pump body 1, a through hole is formed in the middle of the lower disc 511, a servo motor 515 is fixedly mounted at the bottom of the lower disc 511, an output shaft of the servo motor 515 penetrates through the lower disc 511 and is connected with a driving wheel 516, the driving wheel 516 is rotatably mounted at the top of the lower disc 511, a plurality of driven wheels 517 circumferentially arranged are further rotatably connected to the top of the lower disc 511, a belt 518 is sleeved outside the driving wheel 516 and the driven wheels 517, the bottom of the driven wheels 517 is connected with a winding wheel 519 arranged inside the lower disc 511 through a rotating shaft, a steel wire rope is wound on the winding wheel 519, and the steel wire rope penetrates through a winding hole 514 formed in the side wall of the lower disc 511 and is connected with the telescopic mechanism 6.

Drive action wheel 516 through drive servo motor 515 and rotate, action wheel 516 drives a plurality ofly through belt 518 and rotates from driving wheel 517, drives winding wheel 519 from driving wheel 517 and rotates, and then drives telescopic machanism 6 upward movement through winding wheel 519, and then can adjust holistic activity ventilation pipe 3's height, and then adjust its and pump sump's height, facilitate the use, the practicality is strong.

The lifting mechanism 51 further comprises an upper disc 512, the upper disc 512 is of a hollow structure, a through hole is formed in the middle of the upper disc 512, a plurality of inserting rods 520 are uniformly installed at the bottom of the upper disc 512, and the inserting rods 520 are fixedly connected with the lower disc 511 in an inserted mode. Through the arrangement of the structure, the upper disc 512 and the lower disc 511 are convenient to disassemble, and the belt is convenient to replace.

Example 3

Referring to fig. 5, the adjusting mechanism 5 further includes a clamping mechanism 52 clamped on the lifting mechanism 51, the clamping mechanism 52 includes a first arc plate 521 and a second arc plate 522, the first arc plate 521 and the second arc plate 522 are connected in an inserting manner, the first arc plate 521 and the second arc plate 522 form a hollow circular structure, air cylinders 527 are respectively disposed inside the first arc plate 521 and the second arc plate 522, pushing blocks 528 are fixedly mounted on piston rods of the air cylinders 527, the pushing blocks 528 are slidably connected with the first arc plate 521 and the second arc plate 522, movable connecting rods 531 which are obliquely arranged are movably connected to the pushing blocks 528, rubber blocks 530 are movably connected to the movable connecting rods 531 which are movably connected to the movable connecting rods 531, movable supporting rods 529 which are obliquely arranged are also movably connected to bottoms of the rubber blocks 530, and the movable supporting rods are movably connected to the first arc plate 521 and the second arc plate 522.

The movable ventilation pipe 3 penetrates through the first arc plate 521 and the second arc plate 522, after the height adjustment of the movable ventilation pipe 3 is completed, the cylinder 527 is driven to push the pushing block 528 to move, then the rubber block 530 is pushed to fix the movable ventilation pipe 3 through the movable connecting rod 531 and the movable supporting rod 529, the movable ventilation pipe 3 can be limited once again, and meanwhile, the movable ventilation pipe 3 can be prevented from shaking in the using process due to the fact that the movable ventilation pipe is fixed. Facilitating the fixing of the movable ventilation ducts 3 of different diameters.

The clamping plate 523 and the inserting plate 525 are arranged on the two sides of the first arc-shaped plate 521 and the second arc-shaped plate 522, a bolt shaft 524 is connected to the inserting plate 525 through a spring, and the bolt shaft 524 is matched with a bolt shaft hole formed in the clamping plate 523. Be convenient for carry out the joint with arc 521, arc 522 fixedly, whole equipment dismouting of being convenient for, the practicality is strong.

The top of the first arc-shaped plate 521 is fixedly provided with an arc-shaped fixed block 532, one end of the arc-shaped fixed block 532 is movably connected with a screw 534, the top of the second arc-shaped plate 522 is movably connected with an arc-shaped movable block 533, the end part of the arc-shaped movable block 533 is provided with a notch, and the screw 534 passes through the notch and is fixed through a nut. On the one hand, the fixing device can be used for fixing the first arc-shaped plate 521 and the second arc-shaped plate 522, on the other hand, the adjusting screw 534 is passed through, the arc-shaped movable block 533 is driven to rotate, the movable ventilation pipe 3 can be fixed, and the movable ventilation pipe 3 with different diameters can be conveniently fixed.

The two sides of the first arc-shaped plate 521 and the second arc-shaped plate 522 are fixedly provided with clamping strips 526, and the clamping strips 526 are matched with clamping grooves 513 formed in the two sides of the inner wall of the lower disc 511 and the inner wall of the upper disc 512. The first arc-shaped plate 521 and the second arc-shaped plate 522 are conveniently clamped and fixed with the lower disc 511 and the upper disc 512, and are convenient to disassemble and assemble.

The draw-in groove 513 is the trapezoidal recess of handstand, just all be provided with the rubber pad on the inner wall of trapezoidal recess, card strip 526 is the trapezium structure. The clamping effect is better.

Example 4

Referring to fig. 6, the telescopic mechanism 6 includes a lower flange plate 61, a telescopic hose 62, and an upper flange plate 63, the bottom of the lower flange plate 61 is fixedly connected to the fixed ventilation pipe 2, the top of the lower flange plate 61 is fixedly provided with the telescopic hose 62, the top of the telescopic hose 62 is fixedly provided with the upper flange plate 63, the upper flange plate 63 is rotatably connected to the movable ventilation pipe 3, and the upper flange plate 63 is provided with a hanging ring. The lower flange plate 61 is fixed, and the upper flange plate 63 drives the telescopic hose 62 to extend and retract.

Example 5

Referring to fig. 7, a plurality of teeth 53 are uniformly installed on the outer circumferential surface of the upper plate 512, a driving motor is also installed on the pump body 1, a gear is fixedly installed on an output shaft of the driving motor, and the gear is engaged with the teeth 53. The gear is driven to rotate by starting the driving motor, the upper disc 512 is driven to rotate by the teeth 53, the integral lifting mechanism 51 and the clamping mechanism 52 are driven to rotate, the movable ventilation pipe 3 is driven to rotate, the angle of the movable ventilation pipe is convenient to adjust, and the use is convenient.

The working principle of the invention is as follows: the driving wheel 516 is driven to rotate by driving the servo motor 515, the driving wheel 516 drives a plurality of driven wheels 517 to rotate through the belt 518, the driven wheels 517 drive the winding wheel 519 to rotate, the winding wheel 519 drives the upper flange plate 63 to move upwards, the telescopic hose 62 is driven to stretch, the height of the whole movable vent pipe 3 can be adjusted, the height of the whole movable vent pipe and the height of a pump pool are adjusted, the use is convenient, and the practicability is strong;

the movable ventilation pipe 3 passes through the first arc plate 521 and the second arc plate 522, and after the height adjustment is completed, the driving cylinder 527 drives the pushing block 528 to move, so that the rubber block 530 is pushed to fix the movable ventilation pipe 3 through the movable connecting rod 531 and the movable supporting bar 529, on one hand, the movable ventilation pipe 3 can be limited once more, and meanwhile, the movable ventilation pipe 3 is prevented from shaking in the using process. The movable ventilation pipes 3 with different diameters can be conveniently fixed;

the starting driving motor drives the gear to rotate, and then drives the upper disc 512 to rotate through the teeth 53, and then drives the whole lifting mechanism 51 and the clamping mechanism 52 to rotate, and then drives the movable ventilation pipe 3 to rotate, so that the angle of the movable ventilation pipe is convenient to adjust, and the use is convenient.

By using a fixed draft tube 2, a movable draft tube 3 to purge air from the suction inlet and impeller inlet, the air is released as much as possible by using an inclined buffer zone 4 to allow more lateral dispersion and a larger area of slurry. Through the cooperation that uses buffering area and ventilation pipe at flaring suction inlet and suitable shell direction maximize release air to guaranteed the smoothness that the foam was carried, avoided the pump pond overflow, the pipeline blocks up, and the whole operation of pump is stable, has avoided the emergence of cavitation.

Although one embodiment of the present invention has been described in detail, the description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.

Claims

1. The device for conveying the multiphase fluid is characterized by comprising a pump body (1), wherein a fixed ventilation pipe (2) is arranged at a pump inlet of the pump body (1), a telescopic mechanism (6) is arranged at the end part of the fixed ventilation pipe (2), a movable ventilation pipe (3) is rotatably connected to the top of the telescopic mechanism (6), the movable ventilation pipe (3) penetrates through an adjusting mechanism (5) arranged on the pump body (1), an inclined buffer zone (4) is arranged below the movable ventilation pipe (3), and the buffer zone (4) is located in a pump pool.

2. The device for conveying the multiphase fluid is characterized in that the adjusting mechanism (5) comprises a lifting mechanism (51), the lifting mechanism (51) comprises a lower disc (511) rotatably mounted on the pump body (1), a through hole is formed in the middle of the lower disc (511), a servo motor (515) is fixedly mounted at the bottom of the lower disc (511), an output shaft of the servo motor (515) penetrates through the lower disc (511) to be connected with a driving wheel (516), the driving wheel (516) is rotatably mounted at the top of the lower disc (511), the top of the lower disc (511) is further rotatably connected with a plurality of driven wheels (517) which are circumferentially arranged, belts (518) are sleeved outside the driving wheel (516) and the driven wheels (517), the bottom of the driven wheels (517) is connected with winding wheels (519) which are arranged inside the lower disc (511) through rotating shafts, steel wire ropes are wound on the winding wheels (519), and the steel wire ropes penetrate through winding holes (514) formed in the side wall of the lower disc (511) to be connected with a telescopic mechanism (6).

3. The device for conveying multiphase fluids according to claim 2, wherein the lifting mechanism (51) further comprises an upper disc (512), the upper disc (512) is of a hollow structure, a through hole is formed in the middle of the upper disc (512), a plurality of insertion rods (520) are uniformly installed on the bottom of the upper disc (512), and the insertion rods (520) are fixedly inserted into the lower disc (511).

4. The device for conveying the multiphase fluid is characterized in that the adjusting mechanism (5) further comprises a clamping mechanism (52) clamped on the lifting mechanism (51), the clamping mechanism (52) comprises a first arc-shaped plate (521) and a second arc-shaped plate (522), the first arc-shaped plate (521) and the second arc-shaped plate (522) are connected in an inserted manner, the first arc-shaped plate (521) and the second arc-shaped plate (522) form a hollow circular structure, air cylinders (527) are arranged inside the first arc-shaped plate (521) and the second arc-shaped plate (522), a pushing block (528) is fixedly installed on a piston rod of each air cylinder (527), the pushing block (528) is slidably connected with the first arc-shaped plate (521) and the second arc-shaped plate (522), a movable connecting rod (531) which is obliquely arranged is movably connected to the pushing block (528), a rubber block (530) is movably connected to the bottom of the rubber block (530), and a movable supporting strip (529) which is obliquely arranged is connected with the first arc-shaped plate (521) and the second arc-shaped plate (522).

5. The device for conveying the multiphase fluids according to claim 4, wherein a clamping plate (523) and an inserting plate (525) are arranged on two sides of the first arc plate (521) and the second arc plate (522), a bolt shaft (524) is connected to the inserting plate (525) through a spring, and the bolt shaft (524) is matched with a bolt shaft hole formed in the clamping plate (523).

6. The device for conveying the multiphase fluids according to claim 4, wherein an arc-shaped fixing block (532) is fixedly mounted at the top of the first arc-shaped plate (521), one end of the arc-shaped fixing block (532) is movably connected with a screw rod (534), the top of the second arc-shaped plate (522) is movably connected with an arc-shaped movable block (533), an opening is formed in the end of the arc-shaped movable block (533), and the screw rod (534) passes through the opening and is fixed through a nut.

7. The device for conveying the multiphase fluid is characterized in that clamping strips (526) are fixedly mounted on two sides of the first arc-shaped plate (521) and the second arc-shaped plate (522), and the clamping strips (526) are matched with clamping grooves (513) formed in two sides of the inner wall of the lower disc (511) and the inner wall of the upper disc (512).

8. The device for conveying multiphase fluids according to claim 7, wherein the clamping groove (513) is an inverted trapezoidal groove, rubber pads are arranged on the inner wall of the trapezoidal groove, and the clamping strip (526) is of a trapezoidal structure.

9. The device for conveying the multiphase fluid is characterized in that the telescopic mechanism (6) comprises a lower flange plate (61), a telescopic hose (62) and an upper flange plate (63), the bottom of the lower flange plate (61) is fixedly connected with the fixed ventilation pipe (2), the telescopic hose (62) is fixedly installed at the top of the lower flange plate (61), the upper flange plate (63) is fixedly installed at the top of the telescopic hose (62), the movable ventilation pipe (3) is rotatably connected to the upper flange plate (63), and a hanging ring is arranged on the upper flange plate (63).

10. The device for conveying multiphase fluids according to claim 3, wherein a plurality of teeth (53) are uniformly arranged on the outer peripheral surface of the upper disc (512), the pump body (1) is also provided with a driving motor, an output shaft of the driving motor is fixedly provided with a gear, and the gear is meshed with the teeth (53).