CN202176520U - Forced circulation anti-rotation structure single-stage pump - Google Patents
Forced circulation anti-rotation structure single-stage pump Download PDFInfo
- Publication number
- CN202176520U CN202176520U CN2011202601029U CN201120260102U CN202176520U CN 202176520 U CN202176520 U CN 202176520U CN 2011202601029 U CN2011202601029 U CN 2011202601029U CN 201120260102 U CN201120260102 U CN 201120260102U CN 202176520 U CN202176520 U CN 202176520U
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- pump cover
- pump
- interior
- impeller
- cover
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Abstract
A forced circulation anti-rotation structure single-stage pump relates to the field of single-stage pumps provided with forced circulation and an anti-rotation structure. An inner pump cover (6) is disposed between an outer pump cover (5) installed at an end cover protruding edge (10) of a motor and a pump body (8), an O-shaped sealing ring (12) between the pump body (8) and the inner pump cover (6) is provided; a mechanical sealing movable ring (16) is disposed on a motor output lengthening shaft (2); an impeller (7) with the back part provided with impeller back vanes (13) is installed on the motor output lengthening shaft (2), an inner pump cover cooling water circulation hole (24) and an L-shaped anti-rotation rib (19) are disposed in the inner pump cover (6); a water flow gap (27) between the impeller back vanes (13) and the inner pump cover (6), and the inner pump cover cooling water circulation hole (24) are communicated between a pump chamber high pressure zone (25) and a pump chamber low pressure zone (26). The forced circulation anti-rotation structure single-stage pump prolongs service lifetime of mechanical seal, pump body, and inner pump cover.
Description
Technical field
The utility model forces the anti-structure single-stage pump that revolves of circulation to relate to being designed with and force circulation structure and in interior pump cover, be designed with anti-single-stage pump field of revolving structure.
Background technique
Single-stage pump in the running; Being positioned at mechanical seal on the motor output extension shaft of motor rubs mutually with medium fluid and will produce frictional heat; In mechanical seal, also can stop the solid particle in the medium fluid; For take away effectively in the mechanical seal the frictional heat that produces and wash the solid particle on it, just need in single-stage pump, be designed with the pressure circulation structure, so that the working life of prolonged mechanical sealing; In addition, in order to eliminate eddy flow impurity particle " water mill wheel " effect that in the interior pump cover of single-stage pump, produces, should in interior pump cover, be designed with the anti-structure of revolving, so that destroy the liquid of rotation and the eddy flow that particle produced in the liquid.
Summary of the invention
The purpose of the utility model provides the anti-structure single-stage pump that revolves of a kind of pressure circulation; Through the current gap between impeller back blade and interior pump cover and in pump cover cooling water circulation hole between pump chamber zone of high pressure and pump chamber low pressure area, form the pressure circulation that rushes at mechanical seal; To reach the prolonged mechanical sealing purpose in working life; And in interior pump cover, be provided with the L type and prevent revolving muscle, prolonged the working life of interior pump cover.
Force the anti-structure single-stage pump that revolves of circulation; It is made up of motor, motor output extension shaft, outlet valve, outer pump cover, interior pump cover, impeller, the pump housing, base plate, O RunddichtringO, impeller back blade, mechanical sealing static ring and mechanical sealing linkage ring; Outer pump cover is mounted on the electric motor end cap flange of motor; The interior pump cover that outlet valve is housed outside between pump cover and the pump housing; The pump housing is connected with outer pump cover, between the pump housing and interior pump cover, adds the O RunddichtringO, places the base plate on ground to be installed on the pump housing; On motor output extension shaft, be set with mechanical sealing linkage ring; Mechanical sealing static ring is installed in the interior pump cover; The impeller upper end that is installed on the motor output extension shaft through key contacts continuous with mechanical sealing linkage ring; At the impeller back impeller back blade is arranged, make impeller be axially fixed in motor output end, extension shaft outer end through bolt washer and lock bolt in the impeller lower end; There is the anti-muscle that revolves of L type in pump cover cooling water circulation hole in interior pump cover, having on the inwall of interior pump cover outer ring; Between the pump housing, impeller and interior pump cover, be formed with the pump chamber zone of high pressure, between interior pump cover and mechanical seal, be formed with the pump chamber low pressure area; In the current gap between impeller back blade and the interior pump cover, interior pump cover cooling water circulation hole both is communicated with respectively between pump chamber zone of high pressure and pump chamber low pressure area.
The utility model forces the anti-structure single-stage pump structure design principle that revolves of circulation to be explained as follows:
Owing to rubbing with the WATER AS FLOW MEDIUM fluid continuously mutually, the mechanical seal of single stage centrifugal pump produces heat; And in mechanical seal, produce the solid particle that stop is arranged; Expensive mechanical seal is reduced working life; Owing to have the cooling water circulation hole, and be formed with the current gap between impeller back blade that is designed with at the impeller back and interior pump cover, cooling medium and aqueous fluid in the pump chamber zone of high pressure of institute's shape between the pump housing, impeller and the interior pump cover are got at a high speed by the pump chamber low pressure area that forms between interior pump cover and the mechanical seal through interior pump cover cooling water circulation hole at interior pump cover cavity periphery; The WATER AS FLOW MEDIUM fluid gets into the pump chamber zone of high pressure from the current gap of pump chamber low pressure area through between impeller back blade and interior pump cover more again; Then between above-mentioned pump chamber zone of high pressure and pump chamber low pressure area, form to force circulation, can have cooled liquid stream endlessly to rush at the rotating ring and the stationary ring rubbing surface of mechanical seal, can cool off and wash it; Thereby, prolonged mechanical seal working life.
In addition owing on interior pump cover inwall, be designed with the anti-muscle that revolves of L type; Then can make the high speed rotary motion that the liquid that impeller drove and the solid particles in the liquid of rotation produce and be inhibited and eliminate; Eliminate eddy flow impurity particle " water mill wheel " effect, thereby prolonged the working life of the interior pump cover and the pump housing.
The utility model forces circulation to prevent that revolving structure single-stage pump structure further specifies as follows:
Outer pump cover upper end is installed on the electric motor end cap flange of motor through connecting bolt, and outer pump cover lower end is installed on the pump housing through bolt.
Motor output extension shaft is installed in the interior pump cover motor output shaft mounting hole of interior pump cover; Between the collar wall setting-in outer pump cover and the pump housing of interior pump cover; Mechanical sealing static ring in being installed in the pump cover inner ring wall is a static element with respect to motor output extension shaft, does not rotate with motor output extension shaft.
Mechanical sealing linkage ring is sleeved on the motor output extension shaft hermetically, rotates with motor output extension shaft.
Impeller is sleeved on the motor output extension shaft through key, and the impeller upper end contacts with the mechanical sealing linkage ring lower end; At the impeller back impeller back blade is arranged, impeller back blade and impeller are integrally formed part.
Medium fluid is by the input of pump housing inlet channel, and medium fluid is by the output of pump housing outlet flow, and base plate is installed through the base plate connecting bolt and is connected pump housing bottom.
Be evenly equipped with on the inwall of interior pump cover outer ring that the L type is anti-to revolve muscle, pump cover cooling water circulation hole in being evenly equipped with on the inner ring wall in the boss of interior pump cover is in the interior pump cover Seal cage of interior pump cover and be formed with the pump chamber low pressure area between the mechanical seal.
Mechanical seal is made up of mechanical sealing static ring and mechanical sealing linkage ring.
Be formed with the pump chamber zone of high pressure that medium fluid is forced circulation in pump housing inwall, outside the impeller back and outside the inner ring wall of interior pump cover.
High-pressure medium fluid in the pump chamber zone of high pressure flow into the pump chamber low pressure area through interior pump cover cooling water circulation hole, and the pump chamber zone of high pressure is flowed back in the current gap through between impeller back blade and interior pump cover again, forms the air ring circulation road to mechanical seal.Because the current gap between impeller back blade and interior pump cover is very narrow; The gap of MEDIA FLOW physical efficiency through between above-mentioned impeller back blade and interior pump cover produces pressure circulation and flows back to above-mentioned pump chamber zone of high pressure in the pump chamber low pressure area so flow into, thereby can realize cooling and flushing action to mechanical seal.
The utility model forces circulation to prevent revolving the working life that structure single-stage pump advantage has been to prolong mechanical seal in the single-stage pump; L type in the interior pump cover is anti-to revolve that muscle has been eliminated because rotary blade drives rotatablely moving that media fluid and solid particle produced in the pump housing and interior pump cover; Then just eliminate contained solid particle in the medium fluid gathers formation in the pump housing and interior pump cover solstics " water mill wheel " effect, prolonged the overcurrent part working life of single-stage pump.
Description of drawings
Fig. 1: force the anti-structure single-stage pump sectional structure schematic representation that revolves of circulation.Among Fig. 1, arrow A and arrow B are represented the medium fluid entrance channel and the outlet flow of the pump housing 8 respectively.
Fig. 2: be the schematic representation of part amplification in Z district among Fig. 1.
Fig. 3: for interior pump cover 6 masters look schematic representation, arrow is represented the schematic representation that medium fluid rotatablely moves and in interior pump cover 6, is eliminated among the figure.
Fig. 4: force the anti-structure single-stage pump partial cutaway diagrammatic sketch that revolves of circulation.
Fig. 5: be interior pump cover 6 schematic three dimensional views.
Embodiment
Referring to each accompanying drawing; Force the anti-structure single-stage pump that revolves of circulation; It is made up of motor 1, motor output extension shaft 2, outlet valve 4, outer pump cover 5, interior pump cover 6, impeller 7, the pump housing 8, base plate 9, O RunddichtringO 12, impeller back blade 13, mechanical sealing static ring 15 and mechanical sealing linkage ring 16; Outer pump cover 5 is mounted on the electric motor end cap flange 10 of motor 1, the interior pump cover 6 that outlet valve 4 is housed outside between pump cover 5 and the pump housing 8, the pump housing 8 is connected with outer pump cover 5; Add O RunddichtringO 12 at the pump housing 8 and 6 of interior pump covers, place the base plate 9 on ground to be installed on the pump housing 8; On motor output extension shaft 2, be set with mechanical sealing linkage ring 16; Mechanical sealing static ring 15 is installed in the interior pump cover 6; Impeller 7 upper ends that are installed on the motor output extension shaft 2 through key contact continuous with mechanical sealing linkage ring 16; At impeller 7 backs impeller back blade 13 is arranged, make 7 in impeller be axially fixed in motor output end, extension shaft outer end through bolt washer 17 and lock bolt 18 in impeller 7 lower ends; There is the anti-muscle 19 that revolves of L type in pump cover cooling water circulation hole 24 in interior pump cover 6, having on interior pump cover 6 outer ring inwalls; Between the pump housing 8, impeller 7 and interior pump cover 6, be formed with pump chamber zone of high pressure 25, between interior pump cover 6 and mechanical seal, be formed with pump chamber low pressure area 26; In the current gap 27 between impeller back blade 13 and the interior pump cover 6, interior pump cover cooling water circulation hole 24 boths are communicated with respectively between pump chamber zone of high pressure 25 and pump chamber low pressure area 26.
Referring to Fig. 1, outer pump cover 5 is installed through connecting bolt 3 and is connected on the electric motor end cap flange 10; The pump housing 8 is connected with outer pump cover 5 through bolt 11; Base plate 9 is installed in the pump housing 8 bottoms through base plate connecting bolt 14.
Motor output extension shaft 2 is installed in the interior pump cover motor output shaft mounting hole 23 of interior pump cover 6; Between the collar wall setting-in outer pump cover 5 and the pump housing 8 of interior pump cover 6; Mechanical sealing static ring 15 in being installed in the pump cover 6 inner ring walls is static element with respect to motor output extension shaft 2, does not rotate with motor output extension shaft 2.
Mechanical sealing linkage ring 16 is sleeved on the motor output extension shaft 2 hermetically, rotates with motor output extension shaft 2; Mechanical seal after mechanical sealing static ring 15 makes up with mechanical sealing linkage ring 16, internally the gap between pump cover 6 and the motor output extension shaft 2 forms sealing, and flowing medium can not flowed out.
Be connected with 4 at impeller 7 backs and be uniformly distributed with alternate impeller back blade 13, impeller back blade 13 is cast as integral piece with impeller 7.
Medium fluid is by the inlet channel input of the pump housing 8, and shown in arrow A among Fig. 1, medium fluid is by the outlet flow output of the pump housing 8, shown in arrow B among Fig. 1.
Base plate 9 places on the ground.
Referring to Fig. 1 and Fig. 3, in the outlet valve mounting hole 22 of interior pump cover 6, outlet valve 4 is installed, for discharging gas in the pump housing 8.
Referring to Fig. 3, on interior pump cover 6 outer ring inwalls, be evenly equipped with 4 anti-muscle that revolve of L type of alternate configuration each other; The anti-muscle 19 that revolves of L type is cast as integral piece with interior pump cover 6.
Referring to Fig. 3 and Fig. 4, in the boss 20 of interior pump cover 6, have 4 diameters in uniform way and be 3 millimeters interior pump cover cooling water circulation hole 24; Between the interior pump cover Seal cage 21 of interior pump cover 6 and mechanical seal, be formed with pump chamber low pressure area 26.
Referring to Fig. 4, mechanical seal is made up of mechanical sealing static ring 15 and mechanical sealing linkage ring 16.
Referring to Fig. 4, in the pump housing 8 inwalls, outside the inner ring wall of impeller 7 backs and interior pump cover 6, be formed with pump chamber zone of high pressure 25.In pump chamber zone of high pressure 25, be formed with the pressure circulation of medium fluid shown in arrow C.
As shown in Figure 4, constitute the air ring circulation road by pump chamber zone of high pressure 25, interior pump cover cooling water circulation hole 24, pump chamber low pressure area 26 and by the current gap 27 that forms between impeller back blade 13 and the interior pump cover 6, air ring circulation road direction is shown in arrow D among Fig. 4.
Claims (10)
1. force the anti-structure single-stage pump that revolves of circulation; It is made up of motor (1), motor output extension shaft (2), outlet valve (4), outer pump cover (5), interior pump cover (6), impeller (7), the pump housing (8), base plate (9), O RunddichtringO (12), impeller back blade (13), mechanical sealing static ring (15) and mechanical sealing linkage ring (16); It is characterized in that outer pump cover (5) is mounted on the electric motor end cap flange (10) of motor (1); The interior pump cover (6) that outlet valve (4) is housed is positioned between the outer pump cover (5) and the pump housing (8); The pump housing (8) is connected with outer pump cover (5), between the pump housing (8) and interior pump cover (6), adds O RunddichtringO (12), places the base plate (9) on ground to be installed on the pump housing (8); On motor output extension shaft (2), be set with mechanical sealing linkage ring (16); Mechanical sealing static ring (15) is installed in the interior pump cover (6); Impeller (7) upper end that is installed on the motor output extension shaft (2) through key contacts continuous with mechanical sealing linkage ring (16); At impeller (7) back impeller back blade (13) is arranged, make impeller (7) be axially fixed in motor output end, extension shaft outer end through bolt washer (17) and lock bolt (18) in impeller (7) lower end; There is the anti-muscle (19) that revolves of L type in pump cover cooling water circulation hole (24) in interior pump cover (6), having on the inwall of interior pump cover (6) outer ring; Between the pump housing (8), impeller (7) and interior pump cover (6), be formed with pump chamber zone of high pressure (25), between interior pump cover (6) and mechanical seal, be formed with pump chamber low pressure area (26); In the current gap (27) between impeller back blade (13) and the interior pump cover (6), interior pump cover cooling water circulation hole (24) both is communicated with respectively between pump chamber zone of high pressure (25) and pump chamber low pressure area (26).
2. pressure circulation according to claim 1 is anti-to revolve the structure single-stage pump, it is characterized in that outer pump cover (5) is connected on the electric motor end cap flange (10) through connecting bolt (3) installation; The pump housing (8) is connected with outer pump cover (5) through bolt (11); Base plate (9) is installed in the pump housing (8) bottom through base plate connecting bolt (14).
3. the anti-structure single-stage pump that revolves of pressure circulation according to claim 1; It is characterized in that motor output extension shaft (2) is installed in the interior pump cover motor output shaft mounting hole (23) of interior pump cover (6), between the collar wall setting-in outer pump cover (5) and the pump housing (8) of interior pump cover (6).
4. pressure circulation according to claim 1 is anti-to revolve the structure single-stage pump, and the mechanical sealing static ring (15) that it is characterized in that being installed in interior pump cover (6) the inner ring wall is static element with respect to motor output extension shaft (2), does not rotate with motor output extension shaft (2).
5. pressure circulation according to claim 1 is anti-to revolve the structure single-stage pump, it is characterized in that being sleeved on hermetically on the motor output extension shaft (2) with the mechanical sealing linkage ring (16) that motor output extension shaft (2) rotates; Mechanical seal after mechanical sealing static ring (15) and mechanical sealing linkage ring (16) combination, internally the gap between pump cover (6) and the motor output extension shaft (2) forms sealing.
6. pressure circulation according to claim 1 is anti-to revolve the structure single-stage pump, it is characterized in that being connected with 4 at impeller (7) back is uniformly distributed with alternate impeller back blade (13), and impeller back blade (13) is cast as integral piece with impeller (7).
7. pressure circulation according to claim 1 is anti-to revolve the structure single-stage pump, it is characterized in that in the outlet valve mounting hole (22) of interior pump cover (6), outlet valve (4) being installed.
8. pressure circulation according to claim 1 is anti-to revolve the structure single-stage pump, it is characterized in that on the inwall of interior pump cover (6) outer ring, being evenly equipped with 4 anti-muscle (19) that revolve of L type of alternate configuration each other; The anti-muscle (19) that revolves of L type is cast as integral piece with interior pump cover (6).
9. pressure circulation according to claim 1 is anti-to revolve the structure single-stage pump, it is characterized in that in the boss (20) of interior pump cover (6), having in uniform way 4 diameters and be 3 millimeters interior pump cover cooling water circulation hole (24).
10. pressure circulation according to claim 1 is anti-to revolve the structure single-stage pump, it is characterized in that between the interior pump cover Seal cage (21) of interior pump cover (6) and mechanical seal, being formed with pump chamber low pressure area (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202601029U CN202176520U (en) | 2011-07-22 | 2011-07-22 | Forced circulation anti-rotation structure single-stage pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202601029U CN202176520U (en) | 2011-07-22 | 2011-07-22 | Forced circulation anti-rotation structure single-stage pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202176520U true CN202176520U (en) | 2012-03-28 |
Family
ID=45866403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202601029U Expired - Lifetime CN202176520U (en) | 2011-07-22 | 2011-07-22 | Forced circulation anti-rotation structure single-stage pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202176520U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102220984A (en) * | 2011-07-22 | 2011-10-19 | 李冬庆 | Single stage pump with forced circulation rotation-preventing structure |
| WO2015014211A1 (en) * | 2013-07-30 | 2015-02-05 | 强胜精密机械(苏州)有限公司 | Spiral flow constant pressure pump |
| WO2021105047A1 (en) * | 2019-11-25 | 2021-06-03 | Robert Bosch Gmbh | Turbomachine |
-
2011
- 2011-07-22 CN CN2011202601029U patent/CN202176520U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102220984A (en) * | 2011-07-22 | 2011-10-19 | 李冬庆 | Single stage pump with forced circulation rotation-preventing structure |
| CN102220984B (en) * | 2011-07-22 | 2013-01-02 | 李冬庆 | Single stage pump with forced circulation rotation-preventing structure |
| WO2015014211A1 (en) * | 2013-07-30 | 2015-02-05 | 强胜精密机械(苏州)有限公司 | Spiral flow constant pressure pump |
| WO2021105047A1 (en) * | 2019-11-25 | 2021-06-03 | Robert Bosch Gmbh | Turbomachine |
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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: 20120328 Effective date of abandoning: 20130306 |
|
| RGAV | Abandon patent right to avoid regrant |