CN114151380A - Antiwind vortex pump with gapped bath - Google Patents
Antiwind vortex pump with gapped bath Download PDFInfo
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- CN114151380A CN114151380A CN202111348831.4A CN202111348831A CN114151380A CN 114151380 A CN114151380 A CN 114151380A CN 202111348831 A CN202111348831 A CN 202111348831A CN 114151380 A CN114151380 A CN 114151380A
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- 238000011010 flushing procedure Methods 0.000 claims abstract description 62
- 230000007704 transition Effects 0.000 claims abstract description 6
- 230000007246 mechanism Effects 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 43
- 238000004804 winding Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- 239000010813 municipal solid waste Substances 0.000 abstract description 7
- 238000010276 construction Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 238000004140 cleaning Methods 0.000 abstract description 2
- 239000002002 slurry Substances 0.000 description 10
- 239000000835 fiber Substances 0.000 description 9
- 238000013461 design Methods 0.000 description 6
- 238000004088 simulation Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000010802 sludge Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2205—Conventional flow pattern
- F04D29/2222—Construction and assembly
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/02—Selection of particular materials
- F04D29/026—Selection of particular materials especially adapted for liquid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2261—Rotors specially for centrifugal pumps with special measures
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention belongs to the technical field of dredging pumps, hydromechanics and the like. The utility model provides an antiwind vortex pump with clearance bath, includes pump case (1), back pump cover (3), bearing seal (4), pump shaft (5), bearing housing subassembly (6): the device also comprises an impeller (2), a flushing channel and a nozzle; the semi-open impeller includes blade, impeller back shroud and wheel hub, wherein: the number of the blades is 3-5, the blades are radial straight blades, the blades are uniformly distributed along the circumference of the impeller, the molded lines of the working surface and the molded lines of the back surface are straight lines, the molded lines of the blades between the adjacent blades are in arc transition, and the molded lines of the blades are tangent to the arcs; the clearance flushing mechanism is a flushing channel and a nozzle and is positioned at the vertical and horizontal included angle positions of the rear pump cover of the vortex pump. The device can effectively prevent the cyclone pump from being wound and blocked by garbage and sundries in the environment-friendly dredging process, ensures the stable operation of the cyclone pump, reduces the maintenance and cleaning, prolongs the effective dredging operation time, and improves the environment-friendly dredging construction efficiency.
Description
Technical Field
The invention belongs to the technical field of dredging pumps, hydromechanics and the like.
Background
No matter be river lake reservoir, city country river course, municipal sewage, all need the desilting equipment friendly to ecological environment, and conveying equipment plays decisive effect as the transport efficiency of desilting to the environmental protection as the core equipment in the desilting equipment. Many river channel sediment and sewage ponds are seriously polluted, the sludge contains large garbage, challenges are brought to dredging equipment, the conventional slurry pump is often blocked in the conveying process, and a pump shaft is wound by ribbon-shaped fiber objects, so that the sludge conveying efficiency in the dredging engineering is limited.
The advantage of the vortex pump is that it has a good throughput and can deliver slurries containing large solids. The impeller is an open type or semi-open type impeller, and a non-impeller cavity at the suction side of the impeller and the pump shell is larger, so that the trafficability is ensured; the relative positions of the impeller and the pump chamber are generally three: (a) the impeller is fully retracted behind the pump chamber, (b) part of the impeller extends forward into the pump chamber, and (c) the impeller extends fully forward into the pump chamber. When the mode (c) is adopted, the slurry part passes through the impeller, and due to the gap between the impeller and the rear pump cover, the slurry flows back to the gap, and the fiber matters are brought to the gap by water flow and are wound on the pump shaft, so that the rotation of the pump shaft is influenced along with the increase of the wound matters.
In order to solve the problem of fiber winding, the centrifugal pump cuts and crushes fibers through a pump suction port impeller cutting device; however, in the vortex pump, the cavity at the suction port side of the impeller is large, and the fiber can not be broken by adopting a cutting mode.
Generally, the impeller of the centrifugal slurry pump and the centrifugal dredging dredge pump for conveying higher concentration is a closed impeller, the passing capacity is improved through the special design of blades, and a gap flushing water is arranged between the impeller and a lining plate, wherein the gap flushing water is used for reducing the abrasion of slurry on the impeller cover plate and the lining plate. The centrifugal mud pump gap flushing schematic diagram is shown in figure 1, double arrows show the flowing direction of mud, single arrows show the flowing direction of gap flushing, and gap flushing water flows from the center to the outer edge along the gap between the impeller and the lining plate, so that the mud is prevented from entering the gap, and the abrasion of the impeller and the lining plate is reduced.
The use of "gap flush" has not been found in the art in the construction of vortex pumps.
Disclosure of Invention
In order to solve the problems and solve the problems of winding and blocking of garbage when the vortex pump conveys sludge, the invention discloses an anti-winding vortex pump with gap flushing, which is designed by combining a semi-open impeller and the gap flushing. Prevent that fibre rubbish from twining the pump shaft, reduce the maintenance of shutting down of pump, realize mud continuous transport in the environmental protection desilting engineering.
The technical scheme of the invention to be protected is as follows:
the utility model provides an antiwind vortex pump with clearance bath which characterized in that, includes pump case (1), back pump cover (3), bearing seal (4), pump shaft (5), bearing housing subassembly (6):
the device also comprises an impeller (2), a flushing channel and a nozzle (7);
the pump shell (1) is a single-channel pump shell, the impeller (2) is a semi-open impeller, and the impeller (2) is arranged in an inner cavity of the pump shell (1);
the impeller (2) is in threaded connection with the pump shaft (5) through a hub (23) of the impeller; the impeller (2) is connected to the bearing box assembly (6) through the impeller hub (2-1) and the pump shaft (5) in sequence;
the pump cavity is formed by combining an impeller (2) and a single-channel pump shell (1), the impeller (2) positioned inside and the pump shell (1) positioned outside are both cast by adopting wear-resistant materials, and a rear pump cover (3) is arranged on the rear side of the pump shell (1) so as to close the cavity; the suction chamber (1-1) and the pressurized water chamber (1-2) of the pump shell (1) are of an integrated structure, an inlet is formed in one side of the suction chamber (1-1) of the pump shell (1), and an outlet is formed in one side of the top of the pressurized water chamber (1-2) of the pump shell (1);
the bearing box assembly (6) is provided with an inclined strut (6-1), the rear pump cover (3) and the pump shell (1) are fixed through bolts, and the inclined strut (6-1) provides support and fixation; the rotary pump shaft (5) is connected with the static rear pump cover (3) through a shaft seal (4);
the pump case (1) is supported and fixed by the rear pump cover (3), the rear pump cover (3) is connected with the bearing box assembly (6) through bolts, the shaft seal assembly (4) is positioned in a cavity between the rear pump cover (3) and the pump shaft (5), and the flushing channel and the nozzle (7) are connected with an external water pipe.
Further, the semi-open impeller comprises a blade (21), an impeller rear cover plate (22) and a hub (23), wherein: one side of the impeller rear cover plate (22) is integrated with the blades (21), and the other side of the impeller rear cover plate is integrated with the hub (23); the number of the blades (21) is 3-5, the blades are radial straight blades and are uniformly distributed along the circumference of the impeller, the molded lines of the working face and the molded lines of the back face are straight lines, the molded lines of the blades between the adjacent blades are in arc transition, and the molded lines of the blades are tangent to the arcs; the straight blades are flush with the circumferential edge of the impeller rear cover plate (22) in the extension direction of the straight blades; the clearance flushing mechanism is a flushing channel and a nozzle (7), and the flushing channel and the nozzle (7) are positioned at the vertical and horizontal included angle positions of the vortex pump rear pump cover (3).
The impeller is simple in structure, wide and thick in blades, and flush in appearance, and the fiber is not easy to attach to the impeller. In addition, when the device is applied, the gap flushing mechanism adopts a flushing channel and a nozzle (7), the flushing channel and the nozzle (7) are positioned at the vertical and horizontal included angle positions of the vortex pump rear pump cover (3), and a water source can be obtained by connecting the flushing channel and the nozzle (7) with an external water pipe. In the field, the water source may be provided by another clean water pump (prior art, not part of the present invention).
Further, the diameter of the impeller
H is the lift, the unit m, n is the rotation speed, the unit rpm;
pump inlet diameter and outlet diameter Din＝Dout＝0.5D2In m, rounded to the standard GB/T9113.1-2000 flange size.
Further, the thickness of the blade ranges from 20mm to 60mm, and the width B of the blade2Is the diameter D of the impeller 235% of (d), back cover thickness delta2Get 20-30mm。
Furthermore, the included angle theta between the molded line of the working surface and the molded line of the back surface of each blade is 10-20 degrees, and the transition arc radius r of the adjacent blades4Taking 50-150mm, and taking the thickness of the blade outlet as 20-60 mm.
Furthermore, the pump shell flow channel is in a quasi-spiral shape, and the section of the pump shell flow channel is in a round corner rectangle shape; total pump casing width B3＝0.6D2+e，
Furthermore, a gap e between the impeller rear cover plate and the rear pump cover is 2-5mm, the flushing channel and the nozzle 7 are positioned at the vertical and horizontal included angle positions of the rear pump cover 3, an included angle of 45 degrees is formed between the flushing channel and the nozzle 7 and the horizontal direction, the flushing channel and the nozzle 7 face the direction of the impeller suction port, the flushing channel and the nozzle 7 are along the circumferential tangential direction, and the direction of the water outlet flow is opposite to the rotation direction of the impeller.
The flush water flow path and the nozzle 7 discharge flush water along a gap between the rear pump cover 3 and the impeller rear cover 22 at a flow rate q of 0.833n · D2 2The unit L/min, n is the rotating speed, the unit rpm, and the flushing pressure is 1.2 times of the lift of the vortex pump. Wherein, the formula q of the gap flushing flow rate is 0.833 n.D2 2The clearance is good in flushing effect under the flow, the operation requirement of the vortex pump is met, the clearance does not have slurry backflow, and according to the test, the design completely avoids winding of garbage and the like.
Advantageous effects
The vortex pump is provided with the gap flushing, so that the flow and pressure parameters of the gap flushing are defined, the vortex pump is effectively prevented from being wound and blocked by garbage and sundries in the environment-friendly dredging process, the stable operation of the vortex pump is ensured, the maintenance and the cleaning are reduced, the effective dredging operation time is prolonged, and the environment-friendly dredging construction efficiency is improved.
The slurry conveying device is suitable for conveying high-concentration slurry in the fields of municipal sludge conveying and environment-friendly dredging.
Drawings
FIG. 1 is a schematic diagram of a centrifugal dredge pump gap flushing (prior art)
FIG. 2 is a schematic view of an impeller blade
FIG. 3 is a three-dimensional impeller part view
FIG. 4 is a schematic view of a two-dimensional assembly of a vortex pump apparatus according to an example of application
FIG. 5 is a schematic view of the flush channel and the nozzle angle of the exemplary application
FIG. 6 is a curve for testing the performance of the clean water
FIG. 7 is a graph showing the relationship between the flush water flow rate and the water flow direction on the annular surface of the impeller diameter
FIG. 8 is a fitting of the gap flush flow equation
Description of reference numerals: 1-pump shell, 2-impeller, 3-rear pump cover, 4-shaft seal assembly, 5-pump shaft, 6-bearing box assembly, 7-flushing channel and nozzle, 91-pump cover, 92-external clear water auxiliary pump, 93-liner plate I and 94-liner plate II
Detailed Description
The technical solutions provided in the present application will be further described with reference to the following specific embodiments and accompanying drawings. The advantages and features of the present application will become more apparent in conjunction with the following description.
As shown in fig. 2 and 3, the anti-winding semi-open impeller comprises a blade 21, an impeller back cover plate 22 and a hub 23; the hub 23 is located at the center of the impeller rear cover plate 22, and the blades 21 are installed on one side of the impeller rear cover plate 22; the number of the blades 21 is 4, the blades are radial straight blades, the molded lines of the working face and the molded lines of the back face are straight lines, the blades are uniformly distributed along the circumference of the impeller, the adjacent blades are in arc transition, and the molded lines of the blades (the molded lines of the working face or the molded lines of the back face) are tangent to the arcs; the thickness of the outlet of the blade is delta, the included angle between the profile of the working surface and the profile of the back surface is theta, and the outer diameter of the impeller is D2Fillet radius of adjacent blades is r4。
Based on the design, when the anti-winding semi-open impeller is applied, the gap flushing mechanism adopts the flushing channel and the nozzle (7), the flushing channel and the nozzle (7) are positioned at the vertical and horizontal included angle positions of the rear pump cover (3) of the vortex pump, and a water source can be obtained only by connecting the flushing channel and the nozzle (7) with an external water pipe. In the field, the water source may be provided by another clean water pump (prior art, not part of the present invention).
Design examples of applications and simulation tests are given below.
Examples
Above-mentioned antiwind semi-open impeller design is applied to the vortex pump in order to make the antiwind vortex pump that has gapped bath, as shown in fig. 4:
antiwind vortex pump includes pump case (1), back pump cover (3), bearing seal (4), pump shaft (5), bearing housing subassembly (6):
the device also comprises an impeller (2), a flushing channel and a nozzle (7);
the pump shell (1) is a single-channel pump shell, the impeller (2) is a semi-open impeller, and the impeller (2) is arranged in an inner cavity of the pump shell (1);
the impeller (2) is in threaded connection with the pump shaft (5) through a hub (23) of the impeller; the impeller (2) is connected to the bearing box assembly (6) through the impeller hub (2-1) and the pump shaft (5) in sequence;
the pump cavity is formed by combining an impeller (2) and a single-channel pump shell (1), the impeller (2) positioned inside and the pump shell (1) positioned outside are both cast by adopting wear-resistant materials, and a rear pump cover (3) is arranged on the rear side of the pump shell (1) so as to close the cavity; the suction chamber (1-1) and the pressurized water chamber (1-2) of the pump shell (1) are of an integrated structure, an inlet is formed in one side of the suction chamber (1-1) of the pump shell (1), and an outlet is formed in one side of the top of the pressurized water chamber (1-2) of the pump shell (1);
the bearing box assembly (6) is provided with an inclined strut (6-1), the rear pump cover (3) and the pump shell (1) are fixed through bolts, and the inclined strut (6-1) provides support and fixation; the rotary pump shaft (5) is connected with the static rear pump cover (3) through a shaft seal (4);
the pump case (1) is supported and fixed by the rear pump cover (3), the rear pump cover (3) is connected with the bearing box assembly (6) through bolts, the shaft seal assembly (4) is positioned in a cavity between the rear pump cover (3) and the pump shaft (5), the flushing channel and the nozzle (7) are connected with an external water pipe, and water source is provided by another clean water pump (the part does not belong to the component part of the invention).
As an application example, the gap e between the impeller rear cover plate and the rear pump cover is 3mm, the flushing channel and the nozzle 7 are located at the vertical and horizontal included angle positions of the rear pump cover 3, the flushing channel and the nozzle 7 form an included angle of 45 degrees with the horizontal direction in fig. 4, face to the direction of the impeller suction port, the flushing channel and the nozzle 7 are along the circumferential tangential direction (flushing angle shown in fig. 5), and the direction of the outlet water flow is opposite to the rotation direction of the impeller, so that the fiber winding is prevented.
Flush water is supplied from an external assist pump and flows out along a gap between the rear pump cover 3 and the impeller rear cover 22, and the flush water flow rate q is 0.833n · D2 2The unit L/min, n is the rotating speed, the unit rpm, and the flushing pressure is 1.2 times of the lift of the vortex pump.
The formula q of the gap flushing flow is 0.833 n.D2 2And fitting and concluding according to simulation experiment data (figure 8), the gap flushing effect is good under the flow, the operation requirement of the vortex pump is met, the gap does not have slurry backflow (figure 7), and the winding of garbage and the like can be prevented.
Examples, simulation experiments and simulations
Design parameters of the cyclone pump of the embodiment:
flow rate Q600 m3H, the lift H is 30m, the rotating speed n is 1200rpm,
outer diameter of impeller
D2Calculating to obtain 0.364 m;
pump inlet diameter and outlet diameter Din＝Dout＝0.5D2Calculating to obtain 0.182m, and rounding to 0.2m of a flange of a standard GB/T9113.1-2000;
width of blade B2＝0.35D2And the calculation result is 0.127m,
the clearance e between the impeller and the rear pump cover is 3mm,
blade exit thickness δ 0.15DinThe thickness of the film is 0.03m,
as shown in fig. 2 and 3, the impeller rotates counterclockwise, the number of blades is 4, and the outer diameter D of the impeller20.364m, blade exit width B2Is 0.127m, the included angle theta between the working surface and the back surface of each blade is 10 degrees, and the fillet radius r of the adjacent blade4Take 100 mm. Impeller back cover plate thickness delta2Take 20 mm.
As shown in fig. 4, the pump shaft 5 is connected with the impeller 2 by screw threads, the impeller 2 is located in a cavity formed by the pump shell 1 and the rear pump cover 3, the pump shell 1 is fixed on the rear pump cover 3 by bolts, and the bearing box assembly 6 is connected with the rear pump cover 3The through bolt is connected with the rear pump cover 3, and the bearing box component is fixed on the foundation through foundation bolts. The pump shell runner is designed into a quasi-spiral line, and the cross section of the pump shell runner is rectangular. Total width B of pump casing flow passage3＝0.6D2+ e, taking 3mm as the clearance value e between the impeller and the rear pump cover, and calculating to obtain B30.221 m; the flushing channel and the nozzle (7) form an included angle of 45 degrees with the horizontal direction;
as shown in fig. 5, facing the pump suction port, the flushing channel and the nozzle (7) enter the cavity formed by the rear pump cover 5 and the pump shaft 5 along the tangential direction, the direction of the outlet water flow is opposite to the rotation direction of the impeller, i.e. the impeller rotates clockwise, and the water flow of the flushing channel and the nozzle 7 rotates counterclockwise, so that the fiber winding can be effectively prevented; the flushing channel and the nozzle (7) provide clearance flushing parameters according to the following steps: the flow rate q is 0.833 n.D2 2Calculating to obtain 132L/min; the water-sealing pressure p is 1.2 times of the lift H of the cyclone pump, and 36m, namely 3.6bar, is calculated.
As shown in FIG. 6, the performance curve of the mud pump of this embodiment, with a flow rate of 600m, was obtained by numerical simulation3H, the lift is 30m, and the hydraulic efficiency is 50 percent.
In fig. 7, arrows indicate the water flow direction of the gap at the position e (see fig. 4), the water flow direction of the water flow at different flow rates is obtained through a large number of simulation experiments, the length of the arrows indicates the magnitude of the speed value, and ideally, the water flow only flows out and does not flow in. In the figure, when the flow rate is 0.833 n.D2 2When the device is used, only outflow and no inflow are met; the flow rate was 0.8q, and there was an inflow and an outflow, while the flow rate was 1.2q, and there was only an outflow and no inflow, but the water flow was too large. Therefore, q is preferably 0.833n · D2 2The result of (1).
The present invention is not limited to the above embodiments, and other embodiments and modifications within the scope of the present invention are also encompassed by the present invention.
Claims (10)
1. The utility model provides an antiwind vortex pump with clearance bath which characterized in that, includes pump case (1), back pump cover (3), bearing seal (4), pump shaft (5), bearing housing subassembly (6):
the device also comprises an impeller (2), a flushing channel and a nozzle (7);
the pump shell (1) is a single-channel pump shell, the impeller (2) is a semi-open impeller, and the impeller (2) is arranged in an inner cavity of the pump shell (1);
the impeller (2) is in threaded connection with the pump shaft (5) through a hub (23) of the impeller; the impeller (2) is connected to the bearing box assembly (6) through the impeller hub (2-1) and the pump shaft (5) in sequence;
the pump cavity is formed by combining an impeller (2) and a single-channel pump shell (1), the impeller (2) positioned inside and the pump shell (1) positioned outside are both cast by adopting wear-resistant materials, and a rear pump cover (3) is arranged on the rear side of the pump shell (1) so as to close the cavity; the suction chamber (1-1) and the pressurized water chamber (1-2) of the pump shell (1) are of an integrated structure, an inlet is formed in one side of the suction chamber (1-1) of the pump shell (1), and an outlet is formed in one side of the top of the pressurized water chamber (1-2) of the pump shell (1);
the bearing box assembly (6) is provided with an inclined strut (6-1), the rear pump cover (3) and the pump shell (1) are fixed through bolts, and the inclined strut (6-1) provides support and fixation; the rotary pump shaft (5) is connected with the static rear pump cover (3) through a shaft seal (4);
the pump case (1) is supported and fixed by the rear pump cover (3), the rear pump cover (3) is connected with the bearing box assembly (6) through bolts, the shaft seal assembly (4) is positioned in a cavity between the rear pump cover (3) and the pump shaft (5), and the flushing channel and the nozzle (7) are connected with an external water pipe.
2. The anti-wind vortex pump with gap flush of claim 1 wherein said impeller (2) is semi-open comprising blades (21), an impeller back cover plate (22) and a hub (23), wherein: one side of the impeller rear cover plate (22) is integrated with the blades (21), and the other side of the impeller rear cover plate is integrated with the hub (23); the number of the blades (21) is 3-5, the blades are radial straight blades and are uniformly distributed along the circumference of the impeller, the molded lines of the working face and the molded lines of the back face are straight lines, the molded lines of the blades between the adjacent blades are in arc transition, and the molded lines of the blades are tangent to the arcs; the straight blades are flush with the circumferential edge of the impeller rear cover plate (22) in the extension direction of the straight blades; the clearance flushing mechanism is a flushing channel and a nozzle (7), and the flushing channel and the nozzle (7) are positioned at the vertical and horizontal included angle positions of the vortex pump rear pump cover (3).
3. The swirl pump of claim 1 in which the impeller diameter is greater than the impeller diameter
H is the lift, the unit m, n is the rotation speed, the unit rpm;
the inlet diameter and the outlet diameter D of the cyclone pumpin＝Dout＝0.5D2The unit m is rounded to the standard GB/T9113.1-2000 flange size;
the pump shell flow channel is in a quasi-spiral shape, and the section shape is a round corner rectangle; total pump casing width B3＝0.6D2+e。
4. The anti-winding vortex pump with gap flushing of claim 2, wherein the thickness of the blade is 20-60mm, and the width of the blade is B2Is the diameter D of the impeller235% of (d), back cover thickness delta2Taking 20-30 mm.
5. The anti-wind vortex pump with gap flushing of claim 2 wherein the angle θ between the profile of the working face and the profile of the back face of the vane is 10 ° -20 °, and the radius r of the transition arc of the adjacent vane is r4Taking 50-150mm, and taking the thickness of the blade outlet as 20-60 mm.
6. The vortex pump of claim 1 or 2, wherein the clearance e between the impeller back cover plate and the back pump cover is 2-5mm, the flushing channel and nozzle 7 are located at the vertical and horizontal included angle positions of the back pump cover 3, the flushing channel and nozzle 7 forms an included angle of 45 ° with the horizontal direction, facing the direction of the impeller suction port, the flushing channel and nozzle 7 is along the circumferential tangential direction, and the direction of the outlet water flow is opposite to the direction of the impeller rotation.
7. The vortex pump of claim 1 or 2 wherein the flush channel and jet are formed from a single piece of materialA port 7 through which flush water flows out along a gap between the rear pump cover 3 and the impeller rear cover 22, and in which flush water flow rate q is 0.833n · D2 2The unit L/min, n is the rotating speed, the unit rpm, and the flushing pressure is 1.2 times of the lift of the vortex pump.
8. The swirl pump of any one of claims 1 to 5 in which the direction of the outlet flow of the flushing passage and nozzle (7) is opposite to the direction of rotation of the impeller.
9. The swirl pump of claim 6 in which the direction of the outlet flow of the flushing passage and nozzle (7) is opposite to the direction of rotation of the impeller.
10. The swirl pump of claim 7 in which the direction of the outlet flow of the flushing passage and nozzle (7) is opposite to the direction of rotation of the impeller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111348831.4A CN114151380B (en) | 2021-11-15 | 2021-11-15 | Antiwind swirl pump with clearance bath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111348831.4A CN114151380B (en) | 2021-11-15 | 2021-11-15 | Antiwind swirl pump with clearance bath |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114151380A true CN114151380A (en) | 2022-03-08 |
| CN114151380B CN114151380B (en) | 2024-01-09 |
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| CN202111348831.4A Active CN114151380B (en) | 2021-11-15 | 2021-11-15 | Antiwind swirl pump with clearance bath |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5087171A (en) * | 1989-07-25 | 1992-02-11 | Goulds Pumps, Incorporated | Paper pulp centrifugal pump with gas separation |
| US20040067133A1 (en) * | 2001-11-01 | 2004-04-08 | Eiichi Ishigaki | Turbo pump |
| EP2226505A1 (en) * | 2009-03-03 | 2010-09-08 | KSB Aktiengesellschaft | Free flow impeller with cutting edges |
| CN102207092A (en) * | 2011-06-07 | 2011-10-05 | 张意立 | High-concentration centrifugal pulp pump capable of spraying water on outer corner |
| CN203730335U (en) * | 2014-01-25 | 2014-07-23 | 台州斯莱特机电设备有限公司 | Sewage pump |
| CN105201868A (en) * | 2015-10-15 | 2015-12-30 | 江苏中兴水务有限公司 | Self-washing submersible electric pump and pump bottom sediment washing method |
| CN206816502U (en) * | 2017-04-01 | 2017-12-29 | 广州钜源泵业有限公司 | A kind of submersible sewage pump with stirring function |
| CN212003612U (en) * | 2020-04-10 | 2020-11-24 | 大连宝瑞泵业有限公司 | Vortex driven type vortex pump |
| CN113623231A (en) * | 2021-09-07 | 2021-11-09 | 中交疏浚技术装备国家工程研究中心有限公司 | Optimum non-blocking vortex pump |
-
2021
- 2021-11-15 CN CN202111348831.4A patent/CN114151380B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5087171A (en) * | 1989-07-25 | 1992-02-11 | Goulds Pumps, Incorporated | Paper pulp centrifugal pump with gas separation |
| US20040067133A1 (en) * | 2001-11-01 | 2004-04-08 | Eiichi Ishigaki | Turbo pump |
| EP2226505A1 (en) * | 2009-03-03 | 2010-09-08 | KSB Aktiengesellschaft | Free flow impeller with cutting edges |
| CN102207092A (en) * | 2011-06-07 | 2011-10-05 | 张意立 | High-concentration centrifugal pulp pump capable of spraying water on outer corner |
| CN203730335U (en) * | 2014-01-25 | 2014-07-23 | 台州斯莱特机电设备有限公司 | Sewage pump |
| CN105201868A (en) * | 2015-10-15 | 2015-12-30 | 江苏中兴水务有限公司 | Self-washing submersible electric pump and pump bottom sediment washing method |
| CN206816502U (en) * | 2017-04-01 | 2017-12-29 | 广州钜源泵业有限公司 | A kind of submersible sewage pump with stirring function |
| CN212003612U (en) * | 2020-04-10 | 2020-11-24 | 大连宝瑞泵业有限公司 | Vortex driven type vortex pump |
| CN113623231A (en) * | 2021-09-07 | 2021-11-09 | 中交疏浚技术装备国家工程研究中心有限公司 | Optimum non-blocking vortex pump |
Non-Patent Citations (1)
| Title |
|---|
| 刘广兵;王福善;蒋青;陈世亮;赵以奎;: "50YXB-42液下旋流泵设计", 流体机械, no. 09, pages 38 - 41 * |
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| CN114151380B (en) | 2024-01-09 |
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