CN204493198U - Flow channel type guide blade horizontal type multi-stage pump - Google Patents
Flow channel type guide blade horizontal type multi-stage pump Download PDFInfo
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- CN204493198U CN204493198U CN201520162540.XU CN201520162540U CN204493198U CN 204493198 U CN204493198 U CN 204493198U CN 201520162540 U CN201520162540 U CN 201520162540U CN 204493198 U CN204493198 U CN 204493198U
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Abstract
The utility model discloses a kind of flow channel type guide blade horizontal type multi-stage pump, comprise axle (12) and be socketed in bearing part I (1) on described axle (12), mechanical sealing parts I (2), seal case I (3), suction casing (4), the pump housing, Spit Section (10), equalizing feature (11), seal case II (14), mechanical sealing parts II (15) and bearing part II (16) in turn; The described pump housing comprises the impeller (5) be socketed in turn by axle sleeve (19) on described axle (12), stator (6) and stage casing (7), described impeller (5) front end is provided with seal ring (8), is fixedly connected with between described suction casing (4) and described Spit Section (10) by rod (9).Described stator (6) is through stator.The utility model adopts novel full-open type, flow channel type guide blade structure, considerably reduces the hydraulic loss of fluid and loses along layer, improve the efficiency of pump running.
Description
Technical field
The utility model relates to a kind of flow channel type guide blade horizontal type multi-stage pump, is specifically a kind ofly applied to horizontal type multi-stage pump energy-efficient in petroleum chemical industry and coal chemical industry key device.
Background technique
At present, sectional type horizontal type multi-stage pump (API:BB4 type) generally adopts conventional radial stator as delivery chamber, due to the irregular change that runner design and the return guide vane cross section of fluid channel of the discontinuous of conventional radial stator amass, flow of fluid in pump is caused to impact larger, flow rate of liquid change is uneven, hydraulic loss is larger, it is one of Main Bottleneck restricting horizontal type multi-stage pump efficiengy-increasing at present, especially, under small flow, high-lift operating mode, adopt the horizontal multi-stage centrifugal pump efficiency phenomenon on the low side of conventional radial stator particularly outstanding.
Model utility content
Sectional type horizontal type multi-stage pump according to above-mentioned proposition generally adopts radial stator, and the runner of radial stator is discontinuous, the cross section of fluid channel of return guide vane is long-pending also becomes irregular change, flow of fluid in pump is caused to impact larger, flow rate of liquid change is uneven, the technical problem that hydraulic loss is larger, and provide a kind of runner continuous, cross section of fluid channel amasss the flow channel type guide blade horizontal type multi-stage pump of rule change.
The technological means that the utility model adopts is as follows:
A kind of flow channel type guide blade horizontal type multi-stage pump, comprise axle and be socketed bearing part I on the shaft, mechanical sealing parts I, seal case I, suction casing, the pump housing, Spit Section, equalizing feature, seal case II, mechanical sealing parts II and bearing part II in turn, the described pump housing comprises and is socketed impeller on the shaft, stator and stage casing in turn by axle sleeve, described wheel nose is provided with seal ring, is fixedly connected with between described suction casing and described Spit Section by rod;
Described stator is cylindrical stator, and the medial axis place of described stator is provided with axis hole, and the front of described stator is provided with groove;
The edge of described groove is provided with the flow path groove I that multiple and described groove is communicated with;
The starting point of described flow path groove I is positioned at the sidewall of described groove, and described flow path groove I is gradually dark gradually wide along the length direction of described flow path groove I, and the front of the through described stator of the edge extending to described stator;
The reverse side of described stator is provided with the flow path groove II consistent with the number of described flow path groove I, and described flow path groove I is connected with the starting point of described flow path groove II, and described flow path groove II is gradually shallow gradually wide along the length direction of described flow path groove II, and extends to described axis hole place.
Further, the sidewall of described stator is provided with the flow path groove III be connected with described flow path groove II with described flow path groove I, and match with described stage casing, make to be formed between previous stage impeller outlet to rear stage impeller eye multiple independently, continuous print runner.Have employed this structure, the flowing of pumped medium in runner continous-stable more, velocity variations amplitude is less and even, avoid the whirlpool loss caused when pumped medium mixes in the annular chamber of conventional radial stator, and the impact loss that when pumped medium flows to the runner of stator reverse side from the runner in stator front in conventional radial stator, sudden change of flow speed causes.Considerably reduce the hydraulic loss of stator, improve the efficiency of pump.
Further, described groove is the cylinder shape groove coaxial with described stator.
Further, when described axle is designed to rotate clockwise, described flow path groove I and described flow path groove II entirety are in right-hand screw shape; When described axle is designed to rotate counterclockwise, described flow path groove I and described flow path groove II entirety are in left hand screw shape.
Further, described flow path groove III parallelogram, the acute angle of described parallelogram is crossing with the bottom surface of described stator and sidewall intersection.
Further, one section that described axle is positioned at described bearing part II is socketed with disk, described disk by fastening piece consolidation on the shaft, the end face of described disk is provided with the groove I of dynamic balancing duplicate removal, the cylindrical of described disk is provided with the groove II tested the speed, the outside of described disk is also provided with housing, and described housing is cemented on described bearing part II, and described housing is provided with the hole I of holes probe process and surveys the hole II of shaft displacement probe process.
The utility model has the following advantages:
1, continuous flow path structure is adopted, the flowing of pumped medium in runner continous-stable more, velocity variations amplitude is less and even, avoid the whirlpool loss caused when pumped medium mixes in the annular chamber of conventional radial stator, and the impact loss that when pumped medium flows to the runner of stator reverse side from the runner in stator front in conventional radial stator, sudden change of flow speed causes.Considerably reduce the hydraulic loss of stator, improve the efficiency of pump.
2, runner side open design is adopted, make whole water passage surface can carry out secondary polishing after the casting, improve the present situation that traditional closed gate vane channel is difficult to polish, improve the degree of finish of water passage surface, reduce losing along layer of fluid, thus improve the efficiency of pump.
3, will test the speed, survey axial displacement and dynamic balancing duplicate removal is integrated on a structure (disk), and as a kind of function integrated device, reduce space hold, save manufacture cost.
The utility model extensively can be promoted in the field such as oil and coalification for the foregoing reasons.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is section of structure of the present utility model.
Fig. 2 is the stator schematic diagram in the utility model embodiment.
Fig. 3 is A-A direction view in Fig. 2.
Fig. 4 is the stator front schematic three dimensional views in the utility model embodiment.
Fig. 5 is the stator back side schematic three dimensional views in the utility model embodiment.
Fig. 6 is the runner schematic diagram in the utility model embodiment.
Fig. 7 is the runner schematic three dimensional views in the utility model embodiment.
Fig. 8 is the disk enlarged fragmentary cross section in the utility model embodiment.
Wherein, 1, bearing part I 2, mechanical sealing parts I 3, seal case I 4, suction casing 5, impeller 6, stator 7, stage casing 8 seal ring 9, rod 10, Spit Section 11, equalizing feature 12, axle 13, disk 14, seal case II 15, mechanical sealing parts II 16, bearing part II 17, housing 18, fastening piece 601, axis hole 602, groove 603, flow path groove I 604, flow path groove II 605, flow path groove III 1301, groove I 1302, groove II 1701, hole I 1702, hole II.
Embodiment
As shown in Figure 1, a kind of flow channel type guide blade horizontal type multi-stage pump, comprise axle 12 and be socketed in bearing part I 1 on described axle 12, mechanical sealing parts I 2, seal case I 3, suction casing 4, the pump housing, Spit Section 10, equalizing feature 11, seal case II 14, mechanical sealing parts II 15 and bearing part II 16 in turn, the described pump housing comprises the impeller 5 be socketed in turn by axle sleeve 19 on described axle 12, stator 6 and stage casing 7, described impeller 5 front end is provided with seal ring 8, is fixedly connected with between described suction casing 4 and described Spit Section 10 by rod 9;
As shown in Fig. 2-Fig. 7, described stator 6 is cylindrical stator, and the medial axis place of described stator 6 is provided with axis hole 601, and the front of described stator 6 is provided with the columniform groove 602 coaxial with described stator 6; The edge of described groove 602 is evenly distributed with 6 flow path grooves I 603 be communicated with described groove 602; The starting point of described flow path groove I 603 is positioned at the sidewall of described groove 602, and described flow path groove I 603 is gradually dark gradually wide along the length direction of described flow path groove I 603, and the front of the through described stator 6 of the edge extending to described stator 6; The reverse side of described stator 6 is evenly distributed with 6 flow path grooves II 604, described flow path groove I 603 is connected with the starting point of described flow path groove II 604, described flow path groove II 604 is gradually shallow gradually wide along the length direction of described flow path groove II 604, and extends to described axis hole 601 place; Described flow path groove I 603 and described flow path groove II 604 entirety are in left hand screw shape; The sidewall of described stator 6 is provided with the flow path groove III 605 of the parallelogram be connected with described flow path groove II 604 with described flow path groove I 603, and the acute angle of described parallelogram is crossing with the bottom surface of described stator 6 and sidewall intersection.
As shown in Figure 8, one end that described axle 12 is positioned at described bearing part II 16 is socketed with disk 13, described disk 13 is cemented on described axle 12 by fastening piece 18, the end face of described disk 13 is provided with the groove I 1301 of dynamic balancing duplicate removal, the cylindrical of described disk 13 is provided with the groove II 1302 tested the speed, the outside of described disk 13 is also provided with housing 17, described housing 17 is cemented on described bearing part II 16, and described housing 17 is provided with the hole I 1701 of holes probe process and surveys the hole II 1702 of shaft displacement probe process.
The above; be only the utility model preferably embodiment; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; be equal to according to the technical solution of the utility model and model utility design thereof and replace or change, all should be encompassed within protection domain of the present utility model.
Claims (6)
1. a flow channel type guide blade horizontal type multi-stage pump, it is characterized in that: comprise axle (12) and be socketed in the bearing part I (1) on described axle (12) in turn, mechanical sealing parts I (2), seal case I (3), suction casing (4), the pump housing, Spit Section (10), equalizing feature (11), seal case II (14), mechanical sealing parts II (15) and bearing part II (16), the described pump housing comprises the impeller (5) be socketed in turn by axle sleeve (19) on described axle (12), stator (6) and stage casing (7), described impeller (5) front end is provided with seal ring (8), be fixedly connected with by rod (9) between described suction casing (4) and described Spit Section (10),
Described stator (6) is cylindrical stator, and the medial axis place of described stator (6) is provided with axis hole (601), and the front of described stator (6) is provided with groove (602);
The edge of described groove (602) is provided with the flow path groove I (603) that multiple and described groove (602) is communicated with;
The starting point of described flow path groove I (603) is positioned at the sidewall of described groove (602), described flow path groove I (603) is gradually dark gradually wide along the length direction of described flow path groove I (603), and the front of the through described stator (6) of the edge extending to described stator (6);
The reverse side of described stator (6) is provided with the flow path groove II (604) consistent with the number of described flow path groove I (603), described flow path groove I (603) is connected with the starting point of described flow path groove II (604), described flow path groove II (604) is gradually shallow gradually wide along the length direction of described flow path groove II (604), and extends to described axis hole (601) place.
2. a kind of flow channel type guide blade horizontal type multi-stage pump according to claim 1, is characterized in that: the sidewall of described stator (6) is provided with the flow path groove III (605) be connected with described flow path groove II (604) with described flow path groove I (603).
3. a kind of flow channel type guide blade horizontal type multi-stage pump according to claim 1, is characterized in that: described groove (602) is the cylinder shape groove coaxial with described stator (6).
4. a kind of flow channel type guide blade horizontal type multi-stage pump according to claim 1, it is characterized in that: when described axle (12) is designed to rotate clockwise, described flow path groove I (603) and described flow path groove II (604) entirety are in right-hand screw shape; When described axle (12) is designed to rotate counterclockwise, described flow path groove I (603) and described flow path groove II (604) entirety are in left hand screw shape.
5. a kind of flow channel type guide blade horizontal type multi-stage pump according to claim 2, it is characterized in that: described flow path groove III (605) parallelogram, the acute angle of described parallelogram is crossing with the bottom surface of described stator (6) and sidewall intersection.
6. a kind of flow channel type guide blade horizontal type multi-stage pump according to claim 1, it is characterized in that: one section that described axle (12) is positioned at described bearing part II (16) is socketed with disk (13), described disk (13) is cemented on described axle (12) by fastening piece (18), the end face of described disk (13) is provided with the groove I (1301) of dynamic balancing duplicate removal, the cylindrical of described disk (13) is provided with the groove II (1302) tested the speed, the outside of described disk (13) is also provided with housing (17), described housing (17) is cemented on described bearing part II (16), described housing (17) is provided with the hole I (1701) of holes probe process and surveys the hole II (1702) of shaft displacement probe process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520162540.XU CN204493198U (en) | 2015-03-20 | 2015-03-20 | Flow channel type guide blade horizontal type multi-stage pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520162540.XU CN204493198U (en) | 2015-03-20 | 2015-03-20 | Flow channel type guide blade horizontal type multi-stage pump |
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| Publication Number | Publication Date |
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| CN204493198U true CN204493198U (en) | 2015-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520162540.XU Active CN204493198U (en) | 2015-03-20 | 2015-03-20 | Flow channel type guide blade horizontal type multi-stage pump |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065284A (en) * | 2015-08-13 | 2015-11-18 | 福斯流体控制（苏州）有限公司 | Efficient and high-pressure multi-stage barrel bag type centrifugal pump |
-
2015
- 2015-03-20 CN CN201520162540.XU patent/CN204493198U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065284A (en) * | 2015-08-13 | 2015-11-18 | 福斯流体控制（苏州）有限公司 | Efficient and high-pressure multi-stage barrel bag type centrifugal pump |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |