CN103775376B - A kind of No leakage dynamic seal type pipeline mounted pump - Google Patents
A kind of No leakage dynamic seal type pipeline mounted pump Download PDFInfo
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- CN103775376B CN103775376B CN201410034962.9A CN201410034962A CN103775376B CN 103775376 B CN103775376 B CN 103775376B CN 201410034962 A CN201410034962 A CN 201410034962A CN 103775376 B CN103775376 B CN 103775376B
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- propeller
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- pipeline mounted
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Abstract
The present invention relates to pipeline mounted pump, particularly a kind of conveying is containing the No leakage dynamic seal type pipeline mounted pump of husky medium, has motor, main impeller, sub-propeller, the pump housing and lays respectively at pump discharge and the pump inlet of the pump housing left and right sides; Described sub-propeller internal surface has the groove establishing multiple annular spread, groove two ends semicircular in shape, and intermediate portion is rectangular, and the described Pocket Machining degree of depth is 1/3 of sub-propeller cover sheet thickness.Invention enhances the envelope pressure energy power of sub-propeller, make pipeline mounted pump be applicable to conveying containing husky medium, reliable, easy to maintenance and maintenance cost is low, no liquid is leaked, meet energy-conserving and environment-protective requirement.
Description
Technical field
The present invention relates to pipeline mounted pump, particularly a kind of conveying is containing the No leakage dynamic seal type pipeline mounted pump of husky medium, belongs to plumbing equipment technical field.
Background technique
Pipeline mounted pump is the pump series products in fluid machinery, belongs to vertical structure, and it is identical and be positioned on same center line that diameter imported and exported by pump, can be installed among pipeline as valve, be provided with installation footing, increase the stability of pump, compact appearance is attractive in appearance, and floor space is little, and building drops into low.Pipeline mounted pump impeller is directly installed on the extension shaft of motor, and axial dimension is short, compact structure, and motor bearings and pump configure rationally, can the radial and axial load that produces of ballast pump running effectively, thus ensure that operating steadily of pump, vibrating noise is low.The shaft seal of conventional pipelines pump adopts mechanical seal or mechanical seal combination, the high and cost intensive of seal structure complex, precision prescribed.And traditional sub-propeller adopts straight leaf formula blade structure, sees Fig. 2, when carrying the medium of deep-etching or SS, mechanical seal is usually broken down and is caused leak of liquid in pump, makes seal failure.When leakage liquid enters motor, then may motor damage and accidents caused.
Summary of the invention
Be applicable to carrying the medium under some harsh conditions to make pipeline mounted pump, particularly containing husky medium, the invention provides a kind of with reeded dynamic sealing of auxiliary impeller and material filling type parking sealer with the use of pipeline mounted pump, the pipeline mounted pump it solving prior art is carrying the leakage problem containing causing because mechanical seal damages during husky medium.
Technological scheme of the present invention is as follows: a kind of No leakage dynamic seal type pipeline mounted pump, has motor, main impeller, sub-propeller, the pump housing and lay respectively at pump discharge and the pump inlet of the pump housing left and right sides; Described sub-propeller internal surface has the groove establishing multiple annular spread, groove two ends semicircular in shape, and intermediate portion is rectangular, and the described Pocket Machining degree of depth is 1/3 of sub-propeller cover sheet thickness.
Technique scheme, the groove of described multiple annular spread is evenly distributed on sub-propeller, and the blade on described sub-propeller is the multiple projections between groove; Described sub-propeller one-step casting is shaping.
Technique scheme, described motor is successively connected with main impeller and sub-propeller by electric machine main shaft; Described motor is threaded connection and is fixed on bracket, and described bracket is threaded connection and is fixed on the pump housing.
Technique scheme, the upper end binding site of described electric machine main shaft and bracket is provided with dynamic sealing of auxiliary impeller device; The lower end binding site of described electric machine main shaft and bracket is provided with parking sealer.
Technique scheme, is also provided with water retaining ring between described dynamic sealing of auxiliary impeller device and parking sealer.
The present invention changes traditional straight radial blade formula sub-propeller, the groove of some annular spread is produced by the method for processing at sub-propeller internal surface, groove two ends semicircular in shape, intermediate portion is rectangular, the concrete working depth of groove is 1/3 of sub-propeller cover sheet thickness, and length is determined according to sub-propeller external diameter; " projection " part between groove is equivalent to sub-propeller blade, and under the drive of motor, fast rotational produces pressure head and seals highly pressurised liquid in the pump housing to external leakage; In addition, because groove can collect part leakage liquid, under the influence of centrifugal force, this partially liq can be thrown out of and inflow pump body again.Invention enhances the envelope pressure energy power of sub-propeller, make pipeline mounted pump be applicable to conveying containing husky medium, reliable, easy to maintenance and maintenance cost is low, no liquid is leaked, meet energy-conserving and environment-protective requirement.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Accompanying drawing 1 is the main sectional view of pipeline mounted pump of the present invention;
Accompanying drawing 2 is conventional radial prismatic blade sub-propeller plan views;
Accompanying drawing 3 is plan views of band groove sub-propeller of the present invention;
Accompanying drawing 4 is sectional views of band groove sub-propeller of the present invention.
In figure 1, motor; 2, dynamic sealing of auxiliary impeller device; 3, water retaining ring; 4, parking sealer; 5, sub-propeller; 51, groove; 6, main impeller; 7, pump discharge; 8, pump inlet; 9, the pump housing; 10, bracket; 11, electric machine main shaft.
Embodiment
Referring to Fig. 1, the present invention is a kind of No leakage pipeline mounted pump, and traditional straight radial blade sub-impeller seal effect is undesirable, and especially conveying is easily worn containing during husky medium.The present invention is for adopting a kind of band groove and sealability good dynamic sealing of auxiliary impeller formula pipeline mounted pump, and described sub-propeller 5 directly can be cast and obtain, and moulding process is simple, and cost is low.
Motor 1, bracket 10, the pump housing 9, main impeller 6, sub-propeller 5, parking sealer 4, electric machine main shaft 11, pump inlet 8 and pump discharge 7 are equipped with in the present invention.Pump discharge 7 and pump inlet 8 are separately positioned on the left and right sides of the pump housing 9.See Fig. 3 to Fig. 4, sub-propeller 5 internal surface has the groove 51 establishing multiple annular spread, groove 51 two ends semicircular in shape, and intermediate portion is rectangular, and institute's groove 51 working depth is 1/3 of sub-propeller 5 cover sheet thickness, and length is determined according to sub-propeller 5 external diameter.Motor 1 is threaded connection and is fixed on bracket 10, and the pump housing 9 is connected with bracket 10, and motor 1 is by electric machine main shaft 11 and main impeller 6, sub-propeller 5 direct connection.Main impeller 6 back shroud arranges back blade.Dynamic sealing of auxiliary impeller device 2 is arranged on electric machine main shaft 11 and the binding site of bracket 10, is also provided with water retaining ring 3 between dynamic sealing of auxiliary impeller device 2 and parking sealer 4.Motor 1 drives sub-propeller 5 to rotate together with main impeller 6, and sub-propeller 5 outlet port produces pressure and balances the pump housing 9 internal pressure.Meanwhile, if liquid enters sub-propeller 5 along seal clearance, can flow back in the groove 51 of sub-propeller 5 under gravity, to be then thrown out of under the influence of centrifugal force and again in inflow pump body 9, thus realize effect of No leakage dynamic seal.When vehicle stop state, sub-propeller 5 seals ineffective, prevents leak of liquid by parking sealer 4.Pipeline mounted pump of the present invention is reliable, easy to maintenance and maintenance cost is low, no liquid is leaked, and meets energy-conserving and environment-protective requirement.
Above-described specific embodiment; object of the present invention, technological scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. a No leakage dynamic seal type pipeline mounted pump, has motor (1), main impeller (6), sub-propeller (5), the pump housing (9) and lays respectively at the pump discharge (7) of the pump housing (9) left and right sides and pump inlet (8); It is characterized in that: described sub-propeller (5) internal surface is provided with the groove (51) of multiple annular spread, groove (51) two ends semicircular in shape, intermediate portion is rectangular, and described groove (51) working depth is 1/3 of sub-propeller (5) cover sheet thickness; The groove (51) of described multiple annular spread is evenly distributed on sub-propeller (5), and the blade on described sub-propeller (5) is the multiple projections between groove (51); Described sub-propeller (5) one-step casting is shaping.
2. No leakage dynamic seal type pipeline mounted pump according to claim 1, is characterized in that: described motor (1) is successively connected with main impeller (6) and sub-propeller (5) by electric machine main shaft (11); Described motor (1) is threaded connection and is fixed on bracket (10), and described bracket (10) is threaded connection and is fixed on the pump housing (9).
3. No leakage dynamic seal type pipeline mounted pump according to claim 2, is characterized in that: described electric machine main shaft (11) is provided with dynamic sealing of auxiliary impeller device (2) with the upper end binding site of bracket (10); Described electric machine main shaft (11) is provided with parking sealer (4) with the lower end binding site of bracket (10).
4. No leakage dynamic seal type pipeline mounted pump according to claim 3, is characterized in that: be also provided with water retaining ring (3) between described dynamic sealing of auxiliary impeller device (2) and parking sealer (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410034962.9A CN103775376B (en) | 2014-01-26 | 2014-01-26 | A kind of No leakage dynamic seal type pipeline mounted pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410034962.9A CN103775376B (en) | 2014-01-26 | 2014-01-26 | A kind of No leakage dynamic seal type pipeline mounted pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103775376A CN103775376A (en) | 2014-05-07 |
| CN103775376B true CN103775376B (en) | 2016-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410034962.9A Active CN103775376B (en) | 2014-01-26 | 2014-01-26 | A kind of No leakage dynamic seal type pipeline mounted pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN103775376B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106401984A (en) * | 2016-12-05 | 2017-02-15 | 合肥俊刚机械科技有限公司 | Agricultural intelligent single-suction vertical centrifugal water pump |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2632523A1 (en) * | 1976-07-20 | 1978-01-26 | Lederle Pumpen & Maschf | Centrifugal pump with shaft seal - has auxiliary blades on back of impeller disc to improve sealing |
| US4990055A (en) * | 1989-07-25 | 1991-02-05 | Itt Corporation | Dynamic seal with flushing protection of static seal |
| CN101216039A (en) * | 2007-12-28 | 2008-07-09 | 济南奔腾泵业制造有限公司 | Vertical type highly effective energy-saving abrasion-proof pump |
| CN201241839Y (en) * | 2008-08-15 | 2009-05-20 | 杭州振兴工业泵制造有限公司 | Slurry pump |
| CN201582192U (en) * | 2009-12-01 | 2010-09-15 | 上海连成（集团）有限公司 | Novel adjusting device for auxiliary impeller of self-control self-sucking pump with no seal |
| CN202659520U (en) * | 2012-06-25 | 2013-01-09 | 合肥新沪屏蔽泵股份有限公司 | High temperature high pressure shield pump |
-
2014
- 2014-01-26 CN CN201410034962.9A patent/CN103775376B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2632523A1 (en) * | 1976-07-20 | 1978-01-26 | Lederle Pumpen & Maschf | Centrifugal pump with shaft seal - has auxiliary blades on back of impeller disc to improve sealing |
| US4990055A (en) * | 1989-07-25 | 1991-02-05 | Itt Corporation | Dynamic seal with flushing protection of static seal |
| CN101216039A (en) * | 2007-12-28 | 2008-07-09 | 济南奔腾泵业制造有限公司 | Vertical type highly effective energy-saving abrasion-proof pump |
| CN201241839Y (en) * | 2008-08-15 | 2009-05-20 | 杭州振兴工业泵制造有限公司 | Slurry pump |
| CN201582192U (en) * | 2009-12-01 | 2010-09-15 | 上海连成（集团）有限公司 | Novel adjusting device for auxiliary impeller of self-control self-sucking pump with no seal |
| CN202659520U (en) * | 2012-06-25 | 2013-01-09 | 合肥新沪屏蔽泵股份有限公司 | High temperature high pressure shield pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103775376A (en) | 2014-05-07 |
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