CN203835736U - Horizontal double-shell inner core horizontal split multi-stage centrifugal pump - Google Patents
Horizontal double-shell inner core horizontal split multi-stage centrifugal pump Download PDFInfo
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- CN203835736U CN203835736U CN201420279757.4U CN201420279757U CN203835736U CN 203835736 U CN203835736 U CN 203835736U CN 201420279757 U CN201420279757 U CN 201420279757U CN 203835736 U CN203835736 U CN 203835736U
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Abstract
The utility model discloses a horizontal double-shell inner core horizontal split multi-stage centrifugal pump. A drive side bearing component is arranged outside the drive side of a shaft, a suction side pump cover component is arranged at the inner side of the drive side bearing component, an inner core component is arranged outside the shaft of the other side of the suction side pump cover component, a discharge side pump cover component is arranged outside the shaft of the other side of the inner core component, a barrel body component is arranged at the outer side of the inner core component, and a non-drive side bearing component is arranged outside the shaft of the other side of the discharge side pump cover component; an intermediate tapping component is arranged between the volute-shaped body of the inner core component and the suction side pump cover component. According to the horizontal double-shell inner core horizontal split multi-stage centrifugal pump, an anti-rotation plate body is fixed in a U-shaped groove I of the inner core component through bolts II, and the front end of the anti-rotation plate enters a U-shaped groove II of the discharge side pump cover component to clamp and fix; the horizontal double-shell inner core horizontal split multi-stage centrifugal pump is detachable and solves the problem of difficulty in pump cover mounting and overhauling due to directly using pins for preventing rotation.
Description
Technical field
The utility model relates to a kind of fluid machinery, specifically a kind of horizontal Double-casing inner core horizontal space multi-stage centrifugal pump.
Background technique
At present, the inner core parts rotation prevention structure of horizontal Double-casing inner core horizontal space multi-stage centrifugal pump designs between inner core parts and exhaust end pump cover, by pin anti-rotation, causes pump cover that difficulty is installed, and has brought inconvenience to overhaul of the equipments; The in the situation that of regulation rotating speed, can only, at a kind of pressure of outlet output, can not select; Sealed member adopts mechanical seal structure, and static and dynamic sealing ring easily produces friction and lost efficacy, and running time is relatively short; Bearing part adopts self-lubricating structure mostly, and bearing capacity is little, and under larger load condition, running time is short.
Summary of the invention
The utility model is for the proposition of above problem, and a kind of horizontal Double-casing inner core horizontal space multi-stage centrifugal pump of research and design, the pump cover installation difficulty causing in order to solve existing inner core parts rotation prevention structure; Under regulation rotating speed, can only, at a kind of pressure of outlet output, can not select; Sealed member easily lost efficacy, and running time is short; Bearing part under large load condition running time short shortcoming.The technological means that the utility model adopts is as follows:
A kind of horizontal Double-casing inner core horizontal space multi-stage centrifugal pump, comprising: axle, drive side bearing parts, tap parts 3, suction side pump cover parts, cylinder part, inner core parts, exhaust end pump cover parts and the non-side bearing parts that drive; The driving side outside of axle is provided with drives side bearing parts, described inner side of driving side bearing parts is provided with suction side pump cover parts, another side shaft outside of described suction side pump cover parts is provided with inner core parts, another side shaft outside of described inner core parts is provided with exhaust end pump cover parts, the outside of described inner core parts is provided with cylinder part, and another side shaft outside of described exhaust end pump cover parts is provided with the non-side bearing parts that drive; Between the volute casing of inner core parts and suction side pump cover parts, centre tap parts are installed, by screw I, the centre tap hole on tap pipe one side of tap parts and inner core parts volute is connected and fixed, tap pipe opposite side, dish spring, dish seat, tap seal ring and tap nut are installed successively from suction side pump cover parts to tap pipe, and the installation realizing between tap pipe opposite side and suction side pump cover parts is fixed.
Be connected and fixed with suction side pump cover parts and exhaust end pump cover parts respectively by bolt as preferred described inner core parts.
On navel end face as the volute casing of preferred described inner core parts, offer U-shaped groove I, on cylinder part, offer U-shaped groove II with the corresponding position of U-shaped groove I, torsional stop main body is fixed in U-shaped groove I by screw II, and the front end of torsional stop puts in U-shaped groove II and connects and fixes.
As being provided with sealed member between preferred described exhaust end pump cover parts and axle, sealed member is anti-lift spiral chute hydraulic seal, the axle outer surface at sealed member place is processed with spiral chute, stuffing box gland endoporus processing spiral chute in sealed member, and the spiral chute in spiral chute and stuffing box gland on axle mates mutually, stuffing box gland is fixed on exhaust end pump cover parts endoporus inside by screw III.
Be arranged on exhaust end pump cover parts outside as opening bearing support in preferred non-level of driving on side bearing parts, in level, open between bearing support and axle, be provided with successively dust sealing assembly and radially bearing shell of four oil film wedges away from exhaust end pump cover parts direction, in described level, open bearing support outside the mobile indication box of oil extraction is installed, inside is provided with thrust axis tray by kingsbury thrust bearing assembly, the outside of kingsbury thrust bearing assembly and axle is provided with the cover that tests the speed for testing the speed, the described cover outside of testing the speed is provided with bearing gland, described bearing gland is bolted in level and opens outside bearing support.
Compared with the prior art, horizontal Double-casing inner core horizontal space multi-stage centrifugal pump described in the utility model has the following advantages:
(1), between inner core parts and exhaust end pump cover parts, adopt torsional stop main body to be fixed on by screw II in the U-shaped groove I of inner core parts, and the front end of torsional stop puts in the U-shaped groove II of exhaust end pump cover parts and connects and fixes, this structure is demountable structure, has solved direct use pin anti-rotation and has caused pump cover to install and overhaul difficult problem.
(2), between inner core parts volute casing and suction side pump cover parts, centre tap structure is set, the demand of various pressure heads can meet work time, makes the utlity model has the high advantage of flexibility.
(3), sealed member is anti-lift spiral chute hydraulic seal, the axle outer surface at sealed member place and stuffing box gland inner side are processed with the spiral chute of mutual coupling, form non-contact hydrodynamic sealing, Sealing is long running time, is difficult for inefficacy.
(4), in design level, open bearing support, installation and repairing convenience; Four oil film wedges radially bearing shell have the features such as high damping, rotor stability be good; That kingsbury thrust bearing assembly has is low in energy consumption, exceed the feature that load bearing capacity is strong; The mobile indication box of oil extraction can be observed the situation of bearing lubrication oil mass, fully ensures the lubricated of bearing, makes the bearing operation time long, reliable and stable.
Brief description of the drawings
Fig. 1 is the utility model overall structure schematic diagram.
Fig. 2 is the utility model tap parts structure for amplifying schematic diagram.
Fig. 3 is the utility model rotation prevention structure enlarged diagram.
Fig. 4 is the utility model sealed member structure for amplifying schematic diagram.
Fig. 5 is the non-side bearing parts structure for amplifying schematic diagram that drives of the utility model.
Wherein: 1, drive side bearing parts, 2, suction side pump cover parts, 3, tap parts, 31, dish spring, 32, dish seat, 33, tap seal ring, 34, tap nut, 35, tap pipe, 36, screw I, 4, cylinder part, 5, inner core parts, 51, torsional stop, 52, screw II, 6, exhaust end pump cover parts, 7, sealed member, 71, O RunddichtringO, 72, axle, 73, stuffing box gland, 74, screw III, 8, the non-side bearing parts that drive, 81, dust sealing assembly, 82, radially bearing shell of four oil film wedges, 83, in level, open bearing support, 84, the oil extraction indication box that flows, 85, thrust axis tray, 86, kingsbury thrust bearing assembly, 87, cover tests the speed, 88, bearing gland.
Embodiment
As Figure 1-Figure 5, a kind of horizontal Double-casing inner core horizontal space multi-stage centrifugal pump, comprising: axle 72, drive side bearing parts 1, suction side pump cover parts 2, tap parts 3, cylinder part 4, inner core parts 5, exhaust end pump cover parts 6 and the non-side bearing parts 8 that drive, the driving side outside of axle 72 is provided with drives side bearing parts 1, described inner side of driving side bearing parts 1 is provided with suction side pump cover parts 2, another side shaft 72 outsides of described suction side pump cover parts 2 are provided with inner core parts 5, on the navel end face of the volute casing of described inner core parts 5, offer U-shaped groove I, on cylinder part 4, offer U-shaped groove II with the corresponding position of U-shaped groove I, U-shaped groove I is mutually vertical on the depth direction of offering with U-shaped groove II, torsional stop 51 main bodys are fixed in U-shaped groove I by screw II 52, and the front end of torsional stop 51 puts in U-shaped groove II and connects and fixes, effectively prevent the rotation of inner core parts 5 volute casings, and torsional stop 51 is detachably fixed on inner core parts 5 volute casings by screw II 52, be convenient to installation and removal maintenances (as shown in Figure 3).
Another side shaft 72 outsides of described inner core parts 5 are provided with exhaust end pump cover parts 6, described inner core parts 5 are connected and fixed with suction side pump cover parts 2 and exhaust end pump cover parts 6 respectively by bolt, the outside of described inner core parts 5 is provided with cylinder part 4, and another side shaft 72 outsides of described exhaust end pump cover parts 6 are provided with the non-side bearing parts 8 that drive, between the volute casing of inner core parts 5 and suction side pump cover parts 2, centre tap parts 3 are installed, by screw I 36, the centre tap hole on tap pipe 35 1 sides of tap parts 3 and inner core parts 5 volutes is connected and fixed, centre tap hole is arranged on different progression delivery chambers position on inner core parts 5 volute casings, and centre tap hole number is 2, 180 ° are arranged symmetrically with, making two cover tap parts 3 is that 180 ° of symmetries are mounted between the volute casing and suction side pump cover parts 2 of inner core parts 5, tap pipe 35 opposite sides, to tap pipe 35, dish spring 31 is installed successively from suction side pump cover parts 2, dish seat 32, tap seal ring 33 and tap nut 34, the installation realizing between tap pipe 35 opposite sides and suction side pump cover parts 2 is fixed, dish seat 32, between tap seal ring 33 and tap pipe 35, be sealed with O shape circle, dish spring 31 provides the decrement of sealing use with O shape circle to axial seal, dish seat 32 provides certain radial deflection amount to tap pipe 35, while making the utility model work, can meet various pressure head needs, have advantages of that flexibility is high, the design of entirety tap parts 3 structures makes to install more convenient, (as shown in Figure 2) safe and reliable to operation.
Between described exhaust end pump cover parts 6 and axle 72, be provided with sealed member 7, sealed member 7 is anti-lift spiral chute hydraulic seal, axle 72 outer surfaces at sealed member 7 places are processed with spiral chute, stuffing box gland 73 endoporus processing spiral chutes in sealed member 7, and the spiral chute in the spiral chute on axle 72 and stuffing box gland 73 mates mutually, between axle 72 and stuffing box gland 73, be filled with the sealing water of sealing running, stuffing box gland 73 is fixed on exhaust end pump cover parts 6 endoporus inside by screw III 74, between stuffing box gland 73 and exhaust end pump cover parts 6, be provided with O shape 71 (as shown in Figure 4) of circle for sealing, in the time that axle 72 runs up, spiral chute produces pumping pressure head to the fluid that is filled in seal clearance, this pumping pressure head and sealed pressure medium balance each other, thereby stop the leakage of sealing medium, on exhaust end pump cover parts 6, be designed with the interface for rinsing, and on the leakage pipeline of sealing water, carry out revealing sealing coolant-temperature gage and monitored, regulate the sealing water water yield according to survey leakage sealing coolant-temperature gage, can be good at ensureing the normal operation of sealing, have simple in structure, cheap, the advantage that reliability is high, can meet to carry and there is abrasion, contain solid particle, the job requirement of high temperature or high-pressure medium, be applicable to petroleum refinement industry, petrochemical industry, the occasions such as power industry.
In non-level of driving on side bearing parts 8, open bearing support 83 and be arranged on exhaust end pump cover parts 6 outsides, the structure of opening bearing support 83 in level has installation and repairing feature easily, in level, open between bearing support 83 and axle 72, away from exhaust end pump cover parts 6 directions be provided with successively dust sealing assembly 81 and four oil film wedges radially bearing shell 82, four oil film wedges radially bearing shell 82 there is the features such as high damping, rotor stability be good.
In described level, open bearing support 83 outsides the mobile indication box 84 of oil extraction is installed, the mobile indication box 84 of oil extraction can be observed the situation of bearing lubrication oil mass, fully ensure the lubricated of bearing, in level, open bearing support 83 inside, by kingsbury thrust bearing assembly 86, thrust axis tray 85 is installed, kingsbury thrust bearing assembly 86 has low in energy consumption, exceed the feature that load bearing capacity is strong, the outside of kingsbury thrust bearing assembly 86 and axle 72 is provided with the cover 87 that tests the speed for testing the speed, described cover 87 outsides of testing the speed are provided with bearing gland 88, described bearing gland 88 is bolted on and in level, opens bearing support 83 outsides, the bearing gland 88 of cover 87 and the particular design of testing the speed provides the interface that tachogenerator and axial displacement sensor are installed, can be timely, convenient, the runnability of detection rotor accurately, can support equipment stable, reliably (as shown in Figure 5).
The above; it is only preferably embodiment of the utility model; but protection domain of the present utility model is not limited to this; any be familiar with those skilled in the art the utility model disclose technical scope in; be equal to replacement or changed according to the technical solution of the utility model and inventive concept thereof, within all should being encompassed in protection domain of the present utility model.
Claims (5)
1. a horizontal Double-casing inner core horizontal space multi-stage centrifugal pump, comprising: axle (72), drive side bearing parts (1), suction side pump cover parts (2), cylinder part (4), inner core parts (5), exhaust end pump cover parts (6) and the non-side bearing parts (8) that drive, the driving side outside of axle (72) is provided with drives side bearing parts (1), described inner side of driving side bearing parts (1) is provided with suction side pump cover parts (2), another side shaft (72) outside of described suction side pump cover parts (2) is provided with inner core parts (5), another side shaft (72) outside of described inner core parts (5) is provided with exhaust end pump cover parts (6), the outside of described inner core parts (5) is provided with cylinder part (4), another side shaft (72) outside of described exhaust end pump cover parts (6) is provided with the non-side bearing parts (8) that drive, characterized by further comprising: tap parts (3), between the volute casing of inner core parts (5) and suction side pump cover parts (2), centre tap parts (3) are installed, by screw I (36), the centre tap hole on the tap pipe of tap parts (3) (35) one sides and inner core parts (5) volute is connected and fixed, tap pipe (35) opposite side, to tap pipe (35), dish spring (31) is installed successively from suction side pump cover parts (2), dish seat (32), tap seal ring (33) and tap nut (34), the installation realizing between tap pipe (35) opposite side and suction side pump cover parts (2) is fixed.
2. horizontal Double-casing inner core horizontal space multi-stage centrifugal pump according to claim 1, is characterized in that: described inner core parts (5) are connected and fixed with suction side pump cover parts (2) and exhaust end pump cover parts (6) respectively by bolt.
3. horizontal Double-casing inner core horizontal space multi-stage centrifugal pump according to claim 1, it is characterized in that: on the navel end face of the volute casing of described inner core parts (5), offer U-shaped groove I, cylinder part (4) is upper offers U-shaped groove II with the corresponding position of U-shaped groove I, torsional stop (51) main body is fixed in U-shaped groove I by screw II (52), and the front end of torsional stop (51) puts in U-shaped groove II and connects and fixes.
4. horizontal Double-casing inner core horizontal space multi-stage centrifugal pump according to claim 1, it is characterized in that: between described exhaust end pump cover parts (6) and axle (72), be provided with sealed member (7), sealed member (7) is anti-lift spiral chute hydraulic seal, axle (72) outer surface that sealed member (7) is located is processed with spiral chute, stuffing box gland (73) endoporus processing spiral chute in sealed member (7), and the spiral chute in the spiral chute on axle (72) and stuffing box gland (73) mates mutually, stuffing box gland (73) is fixed on exhaust end pump cover parts (6) endoporus inside by screw III (74).
5. horizontal Double-casing inner core horizontal space multi-stage centrifugal pump according to claim 1, it is characterized in that: in non-level of driving on side bearing parts (8), open bearing support (83) and be arranged on exhaust end pump cover parts (6) outside, in level, open between bearing support (83) and axle (72), be provided with successively dust sealing assembly (81) and radially bearing shell (82) of four oil film wedges away from exhaust end pump cover parts (6) direction, in described level, open bearing support (83) outside the mobile indication box (84) of oil extraction is installed, inside is provided with thrust axis tray (85) by kingsbury thrust bearing assembly (86), the outside of kingsbury thrust bearing assembly (86) and axle (72) is provided with the cover (87) that tests the speed for testing the speed, described cover (87) outside of testing the speed is provided with bearing gland (88), described bearing gland (88) is bolted in level and opens outside bearing support (83).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420279757.4U CN203835736U (en) | 2014-05-27 | 2014-05-27 | Horizontal double-shell inner core horizontal split multi-stage centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420279757.4U CN203835736U (en) | 2014-05-27 | 2014-05-27 | Horizontal double-shell inner core horizontal split multi-stage centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203835736U true CN203835736U (en) | 2014-09-17 |
Family
ID=51513584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420279757.4U Active CN203835736U (en) | 2014-05-27 | 2014-05-27 | Horizontal double-shell inner core horizontal split multi-stage centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203835736U (en) |
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2014
- 2014-05-27 CN CN201420279757.4U patent/CN203835736U/en active Active
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |