CN112412828B

CN112412828B - Axial chemical pump with salt-resistant and corrosion-resistant pump shaft

Info

Publication number: CN112412828B
Application number: CN202011144595.XA
Authority: CN
Inventors: 陈科
Original assignee: Suzhou Xunru Electronic Technology Co ltd
Current assignee: Suzhou Xunru Electronic Technology Co ltd
Priority date: 2020-02-28
Filing date: 2020-02-28
Publication date: 2022-09-13
Anticipated expiration: 2040-02-28
Also published as: CN111219364A; CN111219364B; CN112412828A

Abstract

The invention discloses an axial chemical pump with a salt-resistant and corrosion-resistant pump shaft, which comprises a pump body, wherein a water inlet is formed in one side of the pump body, a water outlet is formed in the top of the pump body, one end of the water outlet is fixedly connected with a water outlet pipe through a flange, one end of the water inlet is fixedly connected with a water inlet pipe through a flange, a second branch pipe is connected to the water outlet pipe in a through mode, a return pipe is connected to the water inlet pipe in a through mode, a first branch pipe is arranged on the top of the return pipe and the second branch pipe in a sliding mode, a lifting device is connected to the first branch pipe and comprises a bottom plate, a first motor is fixedly connected to the bottom of the bottom plate through a bolt, an output shaft of the first motor penetrates through the bottom plate, one end of the output shaft of the first motor is connected with a lead screw through a coupler, a guide rod is correspondingly arranged on the top of the bottom plate, and a first electromagnet is arranged at the top end of the lead screw, the invention has the characteristics of throttle damage prevention and convenient on-off.

Description

Axial chemical pump with salt-resistant and corrosion-resistant pump shaft

Technical Field

The invention relates to the technical field of chemical pumps, in particular to an axial chemical pump with a salt-resistant and corrosion-resistant pump shaft.

Background

In the ocean engineering formed by the oil production platform, the gathering and transportation pipeline and the like, various chemical pumps such as a centrifugal pump, an oil transportation pump, a seawater lifting pump and the like are required. Since seawater is highly corrosive, a material having high strength is required to be suitable for the specificity of the offshore oil pump.

And current petrochemical pump is in the use, in case the outlet valve is closed for a short time, will greatly increase pipeline system loss, makes flow reduce by a wide margin and directly influence its power, consequently adopts the exit throttling technique on chemical pump more, installs the throttle baffle additional on the pipeline, if need reduce flow then close the baffle, but this kind of mode is not suitable for the petrochemical pump of steep decline poplar journey performance curve, if there is the multistage pump, axial force sudden change damage scheduling problem can even appear. Therefore, it is necessary to design a salt-resistant and corrosion-resistant axial washing chemical pump with a pump shaft for preventing throttling damage.

Disclosure of Invention

The invention aims to provide an axial chemical pump with a salt-resistant and corrosion-resistant pump shaft, which aims to solve the problems in the background technology.

In order to solve the technical problems, the invention provides the following technical scheme: an axial chemical pump with a salt-resistant and corrosion-resistant pump shaft comprises a pump body, wherein a water inlet is formed in one side of the pump body, a water outlet is formed in the top of the pump body, a water outlet pipe is fixedly connected to one end of the water outlet through a flange, a water inlet pipe is fixedly connected to one end of the water inlet through a flange, a second branch pipe is connected to the water outlet pipe in a penetrating manner, a return pipe is connected to the water inlet pipe in a penetrating manner, a first branch pipe is arranged on the top of the return pipe and the top of the second branch pipe in a sliding manner, a lifting device is connected to the first branch pipe, when the pump body works, water is pumped out of the water outlet pipe, reaches the return pipe from the first branch pipe through the second branch pipe, flows into the water inlet, a bypass is arranged at the outlet pipe position of a marine petrochemical pump, so that part of liquid can be quickly returned into the pump or sucked into a liquid tank, and the water outlet amount of the water pump is conveniently adjusted, and does not affect its power.

Further, the lifting device comprises a bottom plate, the bottom of the bottom plate is fixedly connected with a first motor through bolts, an output shaft of the first motor penetrates through the bottom plate, one end of the output shaft is connected with a lead screw through a coupler, a guide rod is correspondingly installed at the top of the bottom plate, a first electromagnet is installed at the top end of the lead screw, a mounting plate is sleeved on the outer portion of the lead screw in a sliding mode, the guide rod penetrates through the mounting plate in a sliding mode, the mounting plate is movably connected with the lead screw through a ball nut pair, a second electromagnet is fixedly installed at the top of the mounting plate, a clamping block is arranged at one end of the mounting plate and is fixedly connected with a first branch pipe in a clamping mode, a cold medium tank is arranged at the bottom of the lifting device, when the flow of the shunt is changed, the first motor is started, the output shaft of the first motor drives the lead screw to rotate and drive the first branch pipe to move up and down, and because the lift of the water pump is fixed, the height of the first branch pipe of adjustment can change the reposition of redundant personnel flow according to the lift characteristic of water pump, avoid the problem through the pipeline system loss that the directly adjustable valve door opening degree was brought greatly, the energy consumption of saving the water pump, when the rivers are overheated to need the cooling, rise to the highest position with the mounting panel, switch on first electro-magnet and second electro-magnet, make both inhale, the first motor of drive rotates, first branch pipe also rotates this moment, after that the first motor of antiport makes the mounting panel descend, the cooling of first branch pipe, the whole quick cooling of the pipeline of being convenient for.

Furthermore, the two ends of the first branch pipe are correspondingly provided with fixed rods, the bottom of each fixed rod is fixedly provided with an insertion rod through welding, the bottom end of each insertion rod is flush with the end of the first branch pipe, inclined supporting plates are uniformly arranged outside the insertion rods, the inner wall of one end of the return pipe is movably connected with a fixed shaft through a bearing, a sector plate is sleeved outside the fixed shaft, one end of the sector plate is provided with a groove, the inner wall of the groove is connected with a steel wire rope, one end of the steel wire rope is connected with a steel ball, the sector plate is in contact with the inclined supporting plates, a spring is connected between the sector plate and the inner wall of the return pipe, when the first branch pipe is inserted into the return pipe, due to the blocking of the inclined supporting plates, the two sector plates are opened, water flows normally pass through, and when the first branch pipe is lifted, the inclined supporting plates are not blocked any more, the spring drives the sector plates to return to the original position, due to inertia, the two steel balls swing upwards when in contact, so that the steel wire ropes are wound together, the sector plates are prevented from swinging upwards, and the effect of breaking the seal is achieved.

Further, the bottom of inserted bar is provided with the manger plate piece, the inserted bar with manger plate piece and articulated mutually, the bottom of inserted bar is provided with double-end electric putter, double-end electric putter is connected with the manger plate piece, the one end of manger plate piece is provided with infrared sensor, and infrared sensor is used for surveying the distance on both sides, and infrared sensor is used for detecting the distance, when it detects when peripheral distance is big, proves to break off two pipes, and double-end electric putter extension this moment seals the end of first spinal branch pipe to the inside water-chilling of being convenient for.

Further, one side of the return pipe is provided with a cleaning device, the cleaning device comprises an intermediate cylinder, the bottom of the intermediate cylinder is provided with a storage cylinder, the top of the intermediate cylinder is provided with a second motor, an output shaft of the second motor penetrates through the inner wall of the top of the intermediate cylinder and is movably connected with a water conveying screw through a coupler, a water pump is connected between the intermediate cylinder and the storage cylinder in a through way, the inner wall of the intermediate cylinder is provided with a filter screen, the outer wall of the intermediate cylinder is connected with a connecting pipe, the outer wall of the intermediate cylinder is also provided with an air inlet pipe, a feed hopper is arranged on the air inlet pipe in a through way, the powdery cleaning medium realizes an escape effect through the air flow of the air inlet pipe and is fully mixed with the water of the water conveying screw on the uppermost layer, the powdery cleaning agent can be dissolved in water in a non-intermittent way, the mixing effect is good, and the cleaning powder and the returned water are fully mixed and then mixed with the returned water to clean the water pump blade, so that the dirt in the water is prevented from adhering to the water, and the service life is prolonged.

Further, electric putter is installed to the bottom inner wall of storage cylinder, the branch spacer is installed at electric putter's top, divide spacer and water spiral's bottom to pass through bearing swing joint, storage cylinder and middle section of thick bamboo are not link up each other when electric putter extends, and storage cylinder link up each other rather than when shortening, are convenient for dilute the washing liquid.

Furthermore, the diameter ratio of the water conveying spiral is spaced from the inner diameter of the middle cylinder by a distance less than two centimeters, and the silt is conveniently deposited from the gap during water conveying at a certain distance, so that the cleaning liquid is prevented from being polluted.

Compared with the prior art, the invention has the following beneficial effects: in the invention, the raw materials are mixed,

(1) the bypass is arranged at the outlet pipeline position of the offshore petrochemical pump by arranging the first branch pipe, the second branch pipe and other members, so that part of liquid can quickly return to the pump or be sucked into the liquid tank, the water yield of the water pump can be conveniently adjusted, and the power of the water pump is not influenced;

(2) the lifting device is arranged, so that the height of the first branch pipe can be freely adjusted, the quantity of the backflow quantity is determined according to the lift characteristic of the water pump, the problem of pipeline system loss caused by directly adjusting the opening of the valve is avoided, and the energy consumption of the water pump is saved;

(3) the screw rod, the first motor and other components are arranged, so that water in the first branch pipe can be taken away and cooled when the water temperature is higher, heat is transferred to a cold medium, and the recovery of heat energy is facilitated;

(4) the assembly of the inclined supporting plate, the steel balls and the like is arranged, so that the original passage can be automatically blocked when the first branch pipe is separated from the return pipe, the integral transportation of water in the first branch pipe is facilitated, the second branch pipe is closed to prevent the return water from leaking, the two pipes can be automatically connected by inserting together, and the connection and disconnection are convenient;

(5) the cleaning device is arranged, so that the cleaning powder is fully mixed with the reflowing water and then mixed into the reflowing water to clean the water pump blade, dirt in the water is prevented from adhering to the water, and the service life is prolonged; the powder is scattered by the vent pipe and is mixed with the reflowed water layer by layer, so that the powdery cleaning agent can dissolve water layer by layer uninterruptedly, and the mixing effect is good.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic overall elevational cross-sectional structural view of the present invention;

FIG. 2 is a schematic view of the installation of the return pipe of the present invention with the first leg;

FIG. 3 is a schematic view of the mounting of the sector plate of the present invention with a second motor;

FIG. 4 is a schematic top view of a sector plate of the present invention;

FIG. 5 is a schematic view of the lifting device of the present invention;

FIG. 6 is a schematic view of the cleaning apparatus of the present invention;

FIG. 7 is a front sectional view of the cleaning apparatus of the present invention;

in the figure: 1. a pump body; 11. a blade; 12. a water outlet; 13. a water inlet; 2. a water outlet pipe; 3. a water inlet pipe; 4. a return pipe; 5. a lifting device; 6. a first branch pipe; 7. a cleaning device; 8. a cold medium tank; 9. a second branch pipe; 41. a sector plate; 42. a spring; 43. a fixed shaft; 44. a wire rope; 45. steel balls; 46. a groove; 51. a first electromagnet; 511. a second electromagnet; 52. a guide bar; 53. a screw rod; 54. a clamping block; 55. mounting a plate; 56. a base plate; 57. a first motor; 61. Fixing the rod; 62. a diagonal bracing plate; 63. an insertion rod; 64. a water retaining block; 71. an intermediate barrel; 72. a connecting pipe; 73. a storage cylinder; 731. a discharge pipe; 732. an electric push rod; 733. a separation block; 74. filtering with a screen; 75. a second motor; 751. carrying out water conveying spiral; 76. an air inlet pipe; 77. a feed hopper; 78. and (4) a water pump.

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.

Referring to fig. 1, the present invention provides a technical solution: an axial chemical pump with a salt-resistant and corrosion-resistant pump shaft comprises a pump body 1, wherein a water inlet 13 is arranged on one side of the pump body 1, a water outlet 12 is arranged at the top of the pump body 1, one end of the water outlet 12 is fixedly connected with a water outlet pipe 2 through a flange, one end of the water inlet 13 is fixedly connected with a water inlet pipe 3 through a flange, a second branch pipe 9 is connected on the water outlet pipe 2, a backflow pipe 4 is connected on the water inlet pipe 3 through a penetrating way, a first branch pipe 6 is arranged at the tops of the backflow pipe 4 and the second branch pipe 9 in a sliding way, a lifting device 5 is connected on the first branch pipe 6, when the pump body 1 works, water is pumped out from the water outlet 12, the water reaches the backflow pipe 4 from the first branch pipe 6 through the second branch pipe 9 and flows into the water inlet 13, a bypass is arranged at the position of an outlet pipeline of the offshore petrochemical pump, so that part of the liquid can be quickly returned into the pump or sucked into a liquid tank, and the water outlet amount of the pump can be conveniently adjusted, and does not affect the power thereof;

as shown in fig. 5, the lifting device 5 includes a bottom plate 56, a first motor 57 is fixedly connected to the bottom of the bottom plate 56 through a bolt, an output shaft of the first motor 57 penetrates through the bottom plate 56, and one end of the first motor 57 is connected to a lead screw 53 through a coupling, a guide rod 52 is correspondingly installed on the top of the bottom plate 56, a first electromagnet 51 is installed on the top end of the lead screw 53, a mounting plate 55 is slidably sleeved outside the lead screw 53, the guide rod 52 slidably penetrates through the mounting plate 55, the mounting plate 55 and the lead screw 53 are movably connected through a ball nut pair, a second electromagnet 511 is fixedly installed on the top of the mounting plate 55, a clamping block 54 is arranged on one end of the mounting plate 55, the clamping block 54 is fixedly clamped with the first branch pipe 6, a cold medium tank 8 is arranged on the bottom of the lifting device 5, when the flow rate of the split flow is changed, the first motor 57 is started, the output shaft thereof drives the lead screw 53 to rotate and drive the first branch pipe 6 to move up and down, because the lift of the water pump is fixed, the height of the first branch pipe 6 can be adjusted to change the flow of the split flow according to the lift characteristic of the water pump, the problem of pipeline system loss caused by directly adjusting the opening of the valve is avoided, the energy consumption of the water pump is saved, when the water flow is overheated and needs to be cooled, the mounting plate 55 is lifted to the highest position, the first electromagnet 51 and the second electromagnet 511 are switched on to enable the water flow and the mounting plate to be absorbed, the first motor 57 is driven to rotate 90 degrees, at the moment, the first branch pipe 6 also rotates 90 degrees, then the first motor 57 is rotated reversely to enable the mounting plate 55 to descend, and the first branch pipe 6 is cooled, so that the whole pipeline can be cooled rapidly;

referring to fig. 2, fixed rods 61 are correspondingly installed at two ends of a first branch pipe 6, an insertion rod 63 is fixed at the bottom of the fixed rod 61 by welding, the bottom end of the insertion rod 63 is flush with the end of the first branch pipe 6, inclined support plates 62 are evenly installed outside the insertion rod 63, a fixed shaft 43 is movably connected with the inner wall of one end of a return pipe 4 through a bearing, a sector plate 41 is sleeved outside the fixed shaft 43, a groove 46 is formed at one end of the sector plate 41, a steel wire rope 44 is connected with the inner wall of the groove 46, a steel ball 45 is connected with one end of the steel wire rope 44, the sector plate 41 is in contact with the inclined support plates 62, a spring 42 is connected between the sector plate 41 and the inner wall of the return pipe 4, when the first branch pipe 6 is inserted into the return pipe 4, due to the blocking of the inclined support plates 62, the two sector plates 41 are opened, the water flow normally passes through, when the first branch pipe 6 is lifted, because the inclined support plates 62 are not blocked any more, the spring 42 drives the sector plate 41 to return to the original position, due to inertia, the two steel balls 45 swing upwards when in contact, so that the steel wire rope 44 is wound together, the sector plate 41 is prevented from swinging upwards, and the effect of breaking the seal is achieved;

as shown in fig. 2, a water blocking block 64 is arranged at the bottom of the insertion rod 63, the water blocking block 64 is hinged with the insertion rod 63, a double-head electric push rod is arranged at the bottom of the insertion rod 63 and connected with the water blocking block 64, an infrared sensor is arranged at one end of the water blocking block 64 and used for detecting the distance between the two sides, and the infrared sensor is used for detecting the distance;

as shown in fig. 6-7, a cleaning device 7 is disposed on one side of the return pipe 4, the cleaning device 7 includes a middle cylinder 71, a storage cylinder 73 is disposed at the bottom of the middle cylinder, a second motor 75 is disposed at the top of the middle cylinder 71, an output shaft of the second motor 75 passes through the inner wall of the top of the middle cylinder 71 and is movably connected with a water transporting screw 751 through a coupling, a water pump 78 is connected between the middle cylinder 71 and the storage cylinder 73, a filter screen 74 is disposed on the inner wall of the middle cylinder 71, a connecting pipe 72 is connected to the outer wall of the middle cylinder 71, an air inlet pipe 76 is further disposed on the outer wall of the middle cylinder 71, a feed hopper 77 is disposed on the air inlet pipe 76, when the water pump needs to be cleaned, the second motor 75 is activated to drive the water transporting screw 751 to rotate and connect the connecting pipe 72, water flows from the return pipe into the middle cylinder 71 to be transported upward, at this time, the air inlet pipe 76 and the feed hopper 77 are connected, the powdery cleaning medium achieves the escape effect through the airflow of the air inlet pipe 76, is fully mixed with the water of the uppermost layer water conveying spiral 751, the mixed water is discharged to the inlet end of the water pump through the discharge pipe 731 to flush the blades, so that the powdery cleaning agent can dissolve water in a layering mode uninterruptedly, the mixing effect is good, the cleaning powder and the backflow water are fully mixed and then mixed into the backflow water to clean the blades of the water pump, dirt in the water is prevented from being adhered, and the service life is prolonged;

an electric push rod 732 is arranged on the inner wall of the bottom of the storage cylinder 73, a separation block 733 is arranged at the top of the electric push rod 732, the separation block 733 is movably connected with the bottom of the water conveying screw 751 through a bearing, the storage cylinder 73 is not communicated with the middle cylinder 71 when the electric push rod 732 extends, and the storage cylinder 73 is communicated with the middle cylinder 71 when the electric push rod 732 shortens, so that the cleaning liquid is diluted conveniently;

the diameter of the water transporting spiral 751 is less than the inner diameter of the middle cylinder 71 by a distance of less than two centimeters, and the interval is a distance which is convenient for depositing silt from a gap during water transporting, so that the cleaning liquid is prevented from being polluted;

when the petrochemical pump works, the first branch pipe and the second branch pipe are utilized to shunt water at the water outlet end, one part of the water flows back to the water inlet end of the water pump, part of liquid can be quickly returned to the pump or sucked into the liquid tank, the water yield of the water pump is conveniently adjusted, the power of the water pump is not influenced, when the first branch pipe is lifted, the lifting device is utilized to adjust the size of the water flow according to the lift of the water pump, the problem of pipeline system loss caused by the fact that the opening of the valve is directly adjusted is avoided, the energy consumption of the water pump is saved, when more impurities are deposited on the water pump, the cleaning device is utilized to clean, dirt in adhesion water is prevented, sectional mixing is favorable for efficient water melting of cleaning powder, the service life is prolonged, the practicability of the petrochemical pump is improved, and the petrochemical pump has the characteristic of convenient on-off-on-off.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a salt-tolerant corrosion-resistant axial chemical pump of pump shaft, includes the pump body (1), one side of the pump body (1) is provided with water inlet (13), the top of the pump body (1) is provided with delivery port (12), flange fixedly connected with outlet pipe (2) is passed through to the one end of delivery port (12), flange fixedly connected with inlet tube (3), its characterized in that are passed through to the one end of water inlet (13): the water inlet pipe is characterized in that a second branch pipe (9) is connected to the water outlet pipe (2) in a penetrating manner, a return pipe (4) is connected to the water inlet pipe (3) in a penetrating manner, a first branch pipe (6) is arranged on the top of the return pipe (4) and the top of the second branch pipe (9) in a sliding manner, a lifting device (5) is connected to the first branch pipe (6), the lifting device (5) comprises a bottom plate (56), a first motor (57) is fixedly connected to the bottom of the bottom plate (56) through bolts, an output shaft of the first motor (57) penetrates through the bottom plate (56), one end of the first motor is connected with a lead screw (53) through a coupler, a guide rod (52) is correspondingly installed at the top of the bottom plate (56), a first electromagnet (51) is installed at the top end of the lead screw (53), a mounting plate (55) is sleeved on the outer portion of the lead screw (53) in a sliding manner, and the guide rod (52) penetrates through the mounting plate (55) in a sliding manner, mounting panel (55) and lead screw (53) are through ball nut vice swing joint, the top fixed mounting of mounting panel (55) has second electro-magnet (511), the one end of mounting panel (55) is provided with grip block (54), grip block (54) are fixed with first branch pipe (6) looks joint, the bottom of lifting device (5) is provided with cold medium jar (8), dead lever (61) are installed to the both ends correspondence of first branch pipe (6), the bottom of dead lever (61) has insert pole (63) through welded fastening, the bottom of insert pole (63) is parallel and level with the end of first branch pipe (6) mutually, inclined strut board (62) is evenly installed to the outside of insert pole (63), the one end inner wall of back flow (4) has fixed axle (43) through bearing swing joint, sector plate (41) have been cup jointed to the outside of fixed axle (43), the water pump is characterized in that a groove (46) is formed in one end of the sector plate (41), a steel wire rope (44) is connected to the inner wall of the groove (46), a steel ball (45) is connected to one end of the steel wire rope (44), the sector plate (41) is in contact with the inclined supporting plate (62), a spring (42) is connected between the sector plate (41) and the inner wall of the return pipe (4), a cleaning device (7) is arranged on one side of the return pipe (4), the cleaning device (7) comprises a middle cylinder (71), a storage cylinder (73) is installed at the bottom of the middle cylinder, a second motor (75) is installed at the top of the middle cylinder (71), an output shaft of the second motor (75) penetrates through the inner wall of the top of the middle cylinder (71) and is movably connected with a water conveying screw (751) through a coupler, and a water pump (78) is connected between the middle cylinder (71) and the storage cylinder (73), a filter screen (74) is installed on the inner wall of the middle cylinder (71), a connecting pipe (72) is connected to the outer wall of the middle cylinder (71), an air inlet pipe (76) is further arranged on the outer wall of the middle cylinder (71), and a feed hopper (77) is arranged on the air inlet pipe (76) in a penetrating manner;

the bottom of the insertion rod (63) is provided with a water blocking block (64), the water blocking block (64) is hinged with the insertion rod (63), the bottom of the insertion rod (63) is provided with a double-end electric push rod, the double-end electric push rod is connected with the water blocking block (64), and one end of the water blocking block (64) is provided with an infrared sensor;

an electric push rod (732) is installed on the inner wall of the bottom of the storage cylinder (73), a separation block (733) is installed at the top of the electric push rod (732), and the separation block (733) is movably connected with the bottom of the water conveying spiral (751) through a bearing.

2. The axial chemical pump with the salt-resistant and corrosion-resistant pump shaft as claimed in claim 1, wherein: the diameter of the water-transporting spiral (751) is less than two centimeters of the inner diameter of the middle cylinder (71).