CN202707507U - Solid-liquid two-phase flow helicon-centrifugal pump - Google Patents
Solid-liquid two-phase flow helicon-centrifugal pump Download PDFInfo
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- CN202707507U CN202707507U CN 201220106505 CN201220106505U CN202707507U CN 202707507 U CN202707507 U CN 202707507U CN 201220106505 CN201220106505 CN 201220106505 CN 201220106505 U CN201220106505 U CN 201220106505U CN 202707507 U CN202707507 U CN 202707507U
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- solid
- centrifugal pump
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- impeller
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Abstract
The utility model relates to a helicon-centrifugal pump, in particular to a solid-liquid two-phase flow helicon-centrifugal pump. The solid-liquid two-phase flow helicon-centrifugal pump comprises a pump body, a shaft, an impeller, an impeller outer edge, a cone-shaped suction chamber and an outlet section, wherein an outer shell of the pump body is provided with a compensation mechanism which contacts the rear end face of the impeller. Compared with the prior art, the compensation mechanism contacts the rear end face of the impeller, when the impeller outer edge is abraded during a conveying process of two-phase fluid, a gap between the impeller outer edge and the cone-shaped suction chamber is enlarged, the compensation mechanism can enable the relative gap between the impeller outer edge and the cone-shaped suction chamber to be adjusted at any time, and therefore the fact that efficiency of the pump is not reduced is ensured, and service life of the impeller is prolonged.
Description
Technical field
The utility model relates to a kind of centrifugal pump, particularly a kind of solid-liquid two-phase flow helico-centrifugal pump.
Background technique
Helico-centrifugal pump also is volute pump.The spiral rotating blade that has living space in the pump housing and extend.The energy transmission of liquid mainly relies on centrifugal force, by its special three-dimensional spiral blade, volume progradation and the blade centrifugal action of spiral are organically combined, make medium obtain energy, thereby make helico-centrifugal pump have the two-fold advantage of volute pump and centrifugal pump.This pump is particularly useful for carrying two-phase solid-liquid fluid, is specially adapted to carry the sewage that contains the long fibre material.When the deficiency that known this helico-centrifugal pump exists is that the helico-centrifugal pump conveying contains the liquid of solid fiber material, the solid fiber material accumulates in the stall that easily causes pump in the runner, and can't reach the requirement that fully efficiently conveying contains solid fiber thing liquid.
Through retrieval, the patent application relevant with the utility model has: helico-centrifugal pump (publication number: CN1926338A), invented a kind of liquid helico-centrifugal pump that is full of the solid affix that is conducive to carry, characteristics are that blade inlet edge and stator cooperatively interact, thereby be applied on the fed sheet of a media in the mechanical force of inhaling the direction generation along pump, stop solid constituent to inhale accumulation in the path at pump, but the method is larger on the impact of pump performance along with after the wearing and tearing of blade outer rim and housing cause the gap increase.
A kind of propeller centrifugal pumps (publication number: CN1439813A), invented a kind of that two single suction impellers is coaxial and lean against the helico-centrifugal pump that is installed in privately in the rotating shaft, increase feed flow, eliminate axial force and radial force that impeller causes, improved reliability, but when conveying solid substance fibre object liquid, easily occur to twine and gather.
A kind of helico-centrifugal pump (publication number: CN2081905U), invented a kind ofly operate steadily, propeller centrifugal pumps that noise is low, applied widely, but because blade is to the stirring of solid fiber thing liquid, so that it clashes into the overcurrent position in the pump housing continuously, thereby consume a large amount of energy, and cause the wearing and tearing of flow passage components.
Summary of the invention
The purpose of this utility model is to provide a kind of wearing and tearing post gap that can overcome blade outer rim and inner walls to become the problem that greatly pump performance is exerted an influence.
The utility model adopts following technological scheme:
A kind of solid-liquid two-phase flow helico-centrifugal pump comprises the pump housing, axle, and impeller, the blade outer rim, the taper suction chamber, outlet section is equipped with and the contacted compensation mechanism of the ear end face of described impeller at the shell of the described pump housing.
Adopt the utility model of technique scheme compared with prior art, compensation mechanism contacts with the ear end face of impeller; After the blade outer rim is worn and torn in the process of conveying two-phase fluid, become large with the taper suction chamber gap on the housing, compensation mechanism can be adjusted the relative gap size of blade outer rim and taper suction chamber at any time, and the efficient of collateral security pump can not reduce, and prolongs the working life of blade.
Preferred version of the present utility model is: described compensation mechanism comprises outer cover, multidiameter shaft, and spring, described multidiameter shaft places in the outer cover, is set with spring on this multidiameter shaft minor diameter; One end of minor diameter contacts with the outer cover inwall; The major diameter of this multidiameter shaft places in the mounting hole on the described pump housing shell, and a large diameter end also contacts with the ear end face of described impeller.Described spring is Compress Spring.The pressure that Compress Spring produces can guarantee that a large diameter end contacts with the rear end of impeller all the time.
The large diameter end of described multidiameter shaft is equipped with the first spheroid, and this first spheroid contacts with the ear end face of described impeller.The first spheroid can reduce the frictional force of ear end face and major diameter one end of impeller, can not make the Efficiency Decreasing of pump.
One end of described multidiameter shaft minor diameter is equipped with the second spheroid, and this second spheroid contacts with described outer cover inwall.The second spheroid can reduce the frictional force of an end and the outer cover inwall of minor diameter, can not make the Efficiency Decreasing of pump.
Compensation mechanism is distributed on the pump housing shell.
Described major diameter is set with filter screen outward, and the outer rim of this filter screen embeds in the draw-in groove of described outer cover.The setting of filter screen is beneficial to and reduces dirt and enter in the outer cover, thereby affects spring with the High Rotation Speed of multidiameter shaft.
The ear end face of described impeller is provided with the first groove, this first groove and described the first spheroid tabling.The first groove and the first spheroid tabling are convenient to the location to the multidiameter shaft larger diameter end, prevent shift phenomenon.
Described outer cover inwall is provided with the second groove, this second groove and described the second spheroid tabling.The second groove and the second spheroid tabling are convenient to the location to the multidiameter shaft smaller diameter end, prevent shift phenomenon
Described outer cover is provided with shoulder, and this shoulder is connected with pump housing shell.
Description of drawings
Fig. 1 is the structural representation of the present embodiment.
Fig. 2 is the B section enlarged view among Fig. 1.
Fig. 3 is that the A of Fig. 1 is to view.
Fig. 4 is entrance edge of blade and stator limit angle structural representation.
Fig. 5 is the structural representation with sleeved helico-centrifugal pump.
Among the figure: major diameter 8, the minor diameter 9 of multidiameter shaft, spring 10, the second spheroid 11, the outer cover 12 of 2b, blade outer rim 2c, running shaft 2d, the pump housing 3, taper suction chamber 3a, spiral spiral case 3b, suction casing 3c, outlet section 3d, axle 4, axle sense of rotation 4a, stator 5, stator limit 5a, stator edge section 5b, ear end face 6, the first spheroid 7, multidiameter shaft divided in helico-centrifugal pump 1, impeller 2, entrance edge of blade 2a, entrance edge of blade edge; Filter screen 13, the first grooves 14, the second grooves 15; Bolt 16, shoulder 17; Draw-in groove 18; Put tangent line T2, sleeve F, sleeve movement direction R, axial Q1, circumferencial direction Q2, the T1 at some P2 place on the tangent line T1 that puts on P2, the stator limit point P1 place on P1, the entrance edge of blade, the entrance edge of blade, the angle of T2 on fluid flow direction S, the stator limit
Embodiment
Referring to accompanying drawing 1 and accompanying drawing 2, be equipped with on the shell of the pump housing 3 of helico-centrifugal pump 1 and the contacted compensation mechanism of the ear end face of impeller 2.The impeller 2 of helico-centrifugal pump 1 has entrance edge of blade 2a and the blade outer rim 2c of spiral extension.Impeller 2 is fixedly connected with axle 4.
The preferred structure of the present embodiment is: compensation mechanism is made of outer cover 12, multidiameter shaft and spring 10, and multidiameter shaft places in the outer cover 12, is set with spring on the multidiameter shaft minor diameter 9; One end of multidiameter shaft minor diameter 9 contacts with outer cover 12 inwalls; The major diameter 8 of multidiameter shaft places in the mounting hole on the pump housing 3 shells, and an end of multidiameter shaft major diameter 8 also contacts with the ear end face of impeller 2; Spring 10 is Compress Springs; After blade outer rim 2c weares and teares in carrying the process of two-phase fluid, become greatly with taper suction chamber 3a gap on the housing, the pressure that spring 10 produces contacts the larger diameter end 8 of multidiameter shaft all the time with the ear end face of impeller 2; Thereby can adjust at any time the relative gap size of blade outer rim 2c and taper suction chamber 3a, the efficient of collateral security pump can not reduce, and further prolongs the working life of blade.
One end of multidiameter shaft major diameter 8 is equipped with the first spheroid 7, the first spheroids 7 and contacts with the ear end face of impeller 2.One end of multidiameter shaft minor diameter 9 is equipped with the second spheroid 11, the second spheroids 11 and contacts with the inwall of outer cover 12.The first spheroid 7 and the second spheroid 11 are beneficial to the friction that reduces between surface of contact, and compensation mechanism is distributed on the shell of the pump housing 1; The compensation mechanism of uniform setting can produce dynamic balancing and shift phenomenon can not occur in operation process, prevents from affecting the normal operation of pump.
The major diameter 8 outer filter screens 13 that are set with, the outer rim of filter screen 13 embeds in the draw-in groove 18 of outer cover 12.The setting of filter screen 13 is beneficial to and reduces dirt and enter in the outer cover 12, thereby affects spring 10 with the High Rotation Speed of multidiameter shaft.Even behind the blade wear, under the pressure-acting of spring 10, the outer rim of filter screen 13 is owing to the effect of the draw-in groove 18 on the outer cover 12, and filter screen 13 inconsistent phenomenon can not occur yet, and can play equally the effect of filtering large dirt.
The ear end face of impeller 2 is provided with the first groove 14, the first grooves 14 and the first spheroid 7 tablings.The first groove 14 and the first spheroid 7 tablings are convenient to the location to multidiameter shaft major diameter 8 ends, prevent shift phenomenon.
Outer inwall is provided with the second groove 15, the second grooves 15 and the second spherical 11 body tablings.The second groove 15 and the second spheroid 11 tablings are convenient to the location to multidiameter shaft minor diameter 9 ends, prevent shift phenomenon.
In the pump body structure of the present embodiment, the pump housing 3 comprises taper suction chamber 3a, spiral spiral case 3b, suction casing 3c and outlet section 3d.The stator 5 that extends internally comprises stator limit 5a, and stator is placed in suction casing 3c place, and the stator limit 5a that extends in the pump chamber has extended to the inner space of impeller 2 imports.Stator 5 cooperates with the blade outer rim 2c of inlet of the impeller 2 of rotation, during blade rotary stator 5 is enclosed in the inner space of rotation blade.
As shown in Figure 1, the top of helical runner 2 is positioned at spiral section.Helico-centrifugal pump 1 has also comprised spiral section and centrifugal step.It is direction S that pump is carried the direction of fluid.
Shown in Figure 2 is view from suction port 3c direction, can see impeller 2 and the stator 5 of helico-centrifugal pump 1 inside.The spiral extension entrance edge of blade 2a of impeller 2 extends to wheel hub inlet to axial direction from top always.
Shown in Figure 2, from suction port 3c, the tangent line T2 at the tangent line T1 at the upper point of blade edge part 2b P1 place and the upper point of stator edge section 5b P2 place, these two tangent line T1, the angle of T2
, verify by experiment angle
It is best between 60 degree are spent to 120.And, the angle
The angle that can not slide at entrance edge of blade 2a less than solid matter of angle.
Shown in Figure 4 is the partial, detailed view of Fig. 3, is that curve is extended in two multi-form spaces.Among Fig. 4, the angle of the entrance edge of blade 2a upper some P1 tangent line T1 of place and the upper point of the stator limit 5a P2 tangent line T2 of place
Be approximately 110 degree.Angle
Curved shape by space curve 2a, 5a determines.Therefore, angle
In the design of helico-centrifugal pump 1, can relatively select.Space curve 2a, 5a curved shape can be selected, like this angle when some P1, P2 move along direction Q2
The number of degrees can guarantee that it remains constant.By correspondingly wider space curve 2a, 5a, when a P1, P2 move along direction Q2, can increase or reduce angle equally
The number of degrees.
Another design advantage is that blade edge part 2b and stator edge section 5b are processed into the edge of cutting function, so just can the solid matter by part between 2b, the 5b be cut.
In general, the angle of selecting
Larger solid matter is more easily piled up along edge 2b, 5b, in like manner, and angle
Less solid matter is easier to be separated by limit 2b, 5b.In addition, by suitable finishing, the length of the live part of limit 2b, 5b can be decided fully.Therefore, helico-centrifugal pump is choosing limit 2b, 5b and their angle
After, can reach the optimization of two-phase solid-liquid fluid is carried limit 2b, 5b and their angle
Reach the obstruction that can effectively prevent pump after the optimal combination, so that the efficient of pump is improved.
Shown in Figure 5, the suction port 3c place cover of helico-centrifugal pump 1 has a sleeve 7, and sleeve 7 is fixedly connected with stator 5.Sleeve 7 can be fixed on the pump housing 3 by fixed block.When fixed block was taken off, sleeve 7 and stator 5 can be taken off from the R direction.The benefit of this structural design is the spacing that can regulate well between stator limit 5a and the entrance edge of blade 2a.Particularly put P1, the P2 space length on direction R or Q1.Entrance edge of blade 2a and stator limit 5a spacing can be regulated when pump operation, and therefore, the distance of some P1, P2 can suitably increase when pump operation.Sleeve 7 can make the position of stator 5 reorientate in certain time interval on direction R.
More than be the cited embodiment of the utility model and accompanying drawing; but the utility model is not limited to above-described embodiment and accompanying drawing is cited; under the prerequisite that does not break away from the utility model protection domain; can reach that the utility model compensation mechanism effect has been done structure or/and the variation of form and the structure that is equal to or/and variation all be considered as in protection domain of the present utility model.
Except the structural type of described the first groove 14 of the present embodiment and the second groove 15 to the first spheroid 7 and the second spheroid 11 location, can also adopt four uniform ball bumps that the first spheroid 7 or the second spheroid 11 are positioned, be beneficial to reduce friction, and position.
Claims (10)
1. a solid-liquid two-phase flow helico-centrifugal pump comprises the pump housing, axle, and impeller, the blade outer rim, the taper suction chamber, outlet section is characterized in that: the shell at the described pump housing is equipped with and the contacted compensation mechanism of the ear end face of described impeller.
2. solid-liquid two-phase flow helico-centrifugal pump according to claim 1, it is characterized in that: described compensation mechanism comprises outer cover, multidiameter shaft, spring, described multidiameter shaft places in the outer cover, is set with spring on this multidiameter shaft minor diameter; One end of minor diameter contacts with the outer cover inwall; The major diameter of this multidiameter shaft places in the mounting hole on the described pump housing shell, and a large diameter end also contacts with the ear end face of described impeller.
3. solid-liquid two-phase flow helico-centrifugal pump according to claim 2, it is characterized in that: described spring is Compress Spring.
4. solid-liquid two-phase flow helico-centrifugal pump according to claim 2, it is characterized in that: the large diameter end of described multidiameter shaft is equipped with the first spheroid, and this first spheroid contacts with the ear end face of described impeller.
5. solid-liquid two-phase flow helico-centrifugal pump according to claim 2, it is characterized in that: an end of described multidiameter shaft minor diameter is equipped with the second spheroid, and this second spheroid contacts with described outer cover inwall.
6. solid-liquid two-phase flow helico-centrifugal pump according to claim 1 and 2, it is characterized in that: described compensation mechanism is distributed on the pump housing shell.
7. solid-liquid two-phase flow helico-centrifugal pump according to claim 2, it is characterized in that: described major diameter is set with filter screen outward, and the outer rim of this filter screen embeds in the draw-in groove of described outer cover.
8. solid-liquid two-phase flow helico-centrifugal pump according to claim 4, it is characterized in that: the ear end face of described impeller is provided with the first groove, this first groove and described the first spheroid tabling.
9. solid-liquid two-phase flow helico-centrifugal pump according to claim 5, it is characterized in that: described outer cover inwall is provided with the second groove, this second groove and described the second spheroid tabling.
10. solid-liquid two-phase flow helico-centrifugal pump according to claim 2, it is characterized in that: described outer cover is provided with shoulder, and this shoulder is connected with pump housing shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220106505 CN202707507U (en) | 2012-03-21 | 2012-03-21 | Solid-liquid two-phase flow helicon-centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220106505 CN202707507U (en) | 2012-03-21 | 2012-03-21 | Solid-liquid two-phase flow helicon-centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202707507U true CN202707507U (en) | 2013-01-30 |
Family
ID=47587814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220106505 Withdrawn - After Issue CN202707507U (en) | 2012-03-21 | 2012-03-21 | Solid-liquid two-phase flow helicon-centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202707507U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536835A (en) * | 2012-03-21 | 2012-07-04 | 江苏大学 | Helico-centrifugal pump for solid-liquid two-phase fluid |
| KR20170073278A (en) * | 2015-12-18 | 2017-06-28 | 현대중공업 주식회사 | Apparatus of balance for impeller |
-
2012
- 2012-03-21 CN CN 201220106505 patent/CN202707507U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536835A (en) * | 2012-03-21 | 2012-07-04 | 江苏大学 | Helico-centrifugal pump for solid-liquid two-phase fluid |
| CN102536835B (en) * | 2012-03-21 | 2014-04-09 | 江苏大学 | Helico-centrifugal pump for solid-liquid two-phase fluid |
| KR20170073278A (en) * | 2015-12-18 | 2017-06-28 | 현대중공업 주식회사 | Apparatus of balance for impeller |
| KR102380320B1 (en) | 2015-12-18 | 2022-03-30 | 현대중공업터보기계 주식회사 | Apparatus of balance for impeller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130130 Effective date of abandoning: 20140409 |
|
| RGAV | Abandon patent right to avoid regrant |