CN2102399U - Seal and bearing lubrication device of supercharging centrifugal pump - Google Patents
Seal and bearing lubrication device of supercharging centrifugal pump Download PDFInfo
- Publication number
- CN2102399U CN2102399U CN 91225748 CN91225748U CN2102399U CN 2102399 U CN2102399 U CN 2102399U CN 91225748 CN91225748 CN 91225748 CN 91225748 U CN91225748 U CN 91225748U CN 2102399 U CN2102399 U CN 2102399U
- Authority
- CN
- China
- Prior art keywords
- bearing
- pump
- shaft
- sealing
- liquid stream
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to the seal and bearing lubrication device of a centrifugal pump used for the secondary supercharging. A liquid stream space which is communicated with a pump inlet liquid stream passage is arranged between a coupling shaft ii and a pump shaft, and the shaft II is sheathed with a combination of a floating ring type sealing pressure relief device and a mechanical sealing mechanism or packing sealing mechanism, which can gradually reduce the pressure for the axial leaking liquid stream which is led in from a pump inlet environment. After the liquid stream passes through an adjusting system, the liquid stream can be lubricated and cooled by a thrust bearing device of an oscillating tile. Under the condition that the utility model is supercharged to 20-50MPa, and the flow quantity is 100-1600M+[3]/d, the pump has effective seal; the bearing can make self-lubrication and cooling; the utility model can match with land motors.
Description
The utility model relates to a kind of for sealing, the bearing-lubricating device of secondary booster with centrifugal pump.
Industrial departments such as current recover petroleum, cutting building stones all need with pump the liquid stream with initial pressure to be carried out secondary booster, and promptly liquid stream increases to 20-50MPa from the initial state pressure that is generally 7-20MPa, to satisfy different usage requirements.It is to adopt multistage centrifugal booster pump that this supercharging has only a few, its basic structure, and what have is that motor shaft connects pump shaft (containing impeller etc.) by the shaft coupling with special seal design; What have connects pump shaft for motor shaft passes through a joining shaft with the seal arrangement sealing, and these all have introduction in Chinese patent " secondary booster pump seal, the bearing-lubricating device " patent No. 88107699.6 and known technology.They can move under normal operation satisfactorily, but have in them under being pressurized to the 20-50MPa operating mode, move the time, for realizing that effectively sealing unavoidably can be not satisfactory, what have is huge numerous and diverse because of designing the not good enough structure that makes, the manufacturing technology difficulty is big, causes the cost costliness.
The purpose of this utility model is the deficiency that will overcome known technology, and a kind of sealing, bearing-lubricating device of boosting centrifugal pump is provided.
The purpose of this utility model is achieved in that
Be provided with between joining shaft II and the pump shaft and can be communicated with the into liquid fluid space of pump flow channel.The axle II is set with can be to from advancing that axial leakage liquid stream that the pump environment introduces reduces pressure gradually and by said axial seal shutoff and to turn back again be the unsteady ring type sealing decompressor of radial leakage liquid stream and the combination of machinery or packing seal body.Radial leakage liquid stream is through being gone into that the brin hole constitutes and by after regulating leakage fluid stream and realizing the regulating system of effective sealing of said combination by cap seat silk hole relief valve, connection seat,, cooling lubricated for swing watt axial rolling bearing.
The structure of the ring type of floating sealing decompressor is the block set that is loaded on the feed liquor seat, is equipped with respectively from two end part and gapped gland of joining shaft II and nut cap, and the two inboard dress bearing unit, segmented sheathing has the modular sealing mechanism of decompressor between the assembly.This unit mechanisms comprises that circular shaft is gapped with the axle II to sealing, interior circle in its cylindrical and the block set, two ends are shaped on respectively with the seam of adjacent fixed cover and cooperate, and section is the cover of deciding of hollow Contraband shape, it is containing the floating ring that is hollow ten shapes with the gapped section of axle II, between cover and the ring spring is housed, floating ring is applied mechanically pin with adjacent deciding and is linked to each other.
Swing watt axial rolling bearing formation lubricated, cooling is between the coupling band cylindrical and spheric seating end of double as slide plate chair, is provided with the flow channel of opening to the connection seat closed inner chamber.Between block and axle I, the block other end with at the bottom of the bearing support between the outside, bearing support be shaped between the spheric seating that the axial bars that can be communicated with radially a hole stitches equal flow channels of being connected successively of formation in interior circle.
Deciding in the ring type of the floating sealing decompressor constitutes all liquid fluid spaces between cover and the floating ring, they with the axle II between thin layer leakage fluid circulation flow path of gap formation, all spaces are connected with path.
Under the spring force effect, floating ring is with a pair of space that can cut off with adjacent deciding and flows the Transverse plane that circulates mutually with path liquid in the unit sealing mechanism of decompressor.
Regulating system is gone into the brin hole by cap seat silk hole, relief valve, connection seat successively, is communicated with pipeline and joint to form.
Said bearing unit is to be inlaid with the rubber bush bearing lining that has axial bar shaped straight joint in interior circle in axle sleeve.
To lubricated, the cooling of swing watt axial rolling bearing, also should comprise that section flow channel of spheric seating near radially silk hole to the bearing support bottom of upper-end surface system, form cooling to rolling bearing.
Advantage of the present utility model: at secondary booster to its flow of 20-50MPa is 100-1600M
3Under the operating mode of/d, can realize effective sealing to pump; Bearing is lubricated voluntarily, cooling; Simple for structure, with low cost; Be equipped with land type motor, can be widely used in various vertical or horizontal boosting centrifugal pump.
Description of drawings:
Fig. 1 is a kind of vertical centrifugal pump plan view of supercharging with sealing, bearing-lubricating device;
Fig. 2 is the I-I profile among Fig. 1;
Fig. 3 is that the A portion among Fig. 2 amplifies, i.e. unit sealing mechanism of decompressor sectional drawing.
Below in conjunction with details and the working condition of accompanying drawing 1-3 detailed description according to the concrete device that the utility model proposes.
This device comprises selects the land to use vertical asynchronous motor 1 as power source, and motor shaft is connected joining shaft I 3 with spring column pin formula shaft coupling 2 with its coaxial inner conductor, and the axle I is supported by swing watt axial rolling bearing 4.To be shaped on into brin hole and 31 places in 6 place chamber wall by open type bearing 5 and to be solidified as a whole for being communicated with silk hole and the connection seat 7 and the motor casing that are provided with closed inner chamber, and end plate pair 8 is equipped with in inner chamber one end sealing, and two endoporus of this pair constitute a playing surface of the table with said bearing means 4 clamping firmly.
In bearing means 4, relate to structure lubricated, that cooling constitutes and be shaped on splined hole for connection and an end face be inlaid with water be the slide plate of oiling agent so claim the coupling band 32 of double as slide plate chair, its end cylindrical and 9 places between the spheric seating end are provided with the flow channel of opening to the connection seat inner chamber.Being simultaneously that an end face is inlaid with water is oiling agent and constitutes 10 places between ring block and the I of sector unit of swing watt thrust bearing with contacting of slide plate, block other end and conduct are by 11 places between the outside at the bottom of the bearing support of rolling bearing supporting axle I, bearing support and 12 places that are shaped in interior circle between the spheric seating that is communicated with radially the silk hole and is evenly distributed in the axial bars seam constitute the flow channel that is connected successively respectively.Being communicated with between 9 places and 10 places, being meant and realizing that to the bearing surface of contact liquid stream (water) lubricated, cooling passes through.Spheric seating is shaped on radially silk hole near the upper end surface, beyond its outlet communication apparatus.
Select alloy steel material to make and surface carburization is handled and two end part are shaped on the joining shaft II 13 of spline, connect into same shaft axis by coupling band one end and the joining shaft I the other end and pump shaft 14, and be provided with by coupling band length between axle II and pump shaft and limit the space 37 that constitutes.Also be provided with feed liquor seat 17, one ends that closed inner chamber and chamber wall 16 places the are shaped on inlet opening connection seat 7 that is tightly connected, the other end is tightly connected for the special-purpose boll-weevil hanger 18(or the pump case water intake of horizontal multi-stage centrifugal pump of recovering the oil).This device can install pump case 19 and sleeve pipe 20, and also is provided with drain pipe 21.
Be set in the unsteady ring type sealing decompressor on the joining shaft II, it has the individual block set 15 that is tightly connected with feed liquor seat closed inner chamber upper end, seat one end is fixed with its internal diameter and the gapped gland 22 of axle II with screw, and dress is shaped on for being connected with it with screw thread and internal diameter and the also gapped nut cap 23 of axle II in the other end seat tube.The inboard of the two is adorned two specifications, measure-alike bearing unit 24 respectively, this assembly is in the steel axle sleeve of its cylindrical and the stationary fit of block set tube, be inlaid with in the circle with the axle II movingly and circumference uniform distribution have the bearing bush that axial bar shaped straight joint is made with rubber material.On that section axle II between two bearing uniies, the modular sealing mechanism of decompressor is equipped with in segmentation.This mechanism comprises between its cylindrical and block set tube with what O shape rubber ring carried out that circle and axle II in the axial seal have that slight clearance and section be hollow Contraband shape and decides cover 25, the cover two ends are shaped on the seam that coincide with adjacent fixed cover respectively and cooperate, fixed cover is containing the interior circle of selecting carbofrax material to make also has slight clearance and section to be the floating ring 26 of hollow ten shapes with the axle II, be supported with spiral spring 27 between fixed cover and the floating ring, floating ring links to each other with pin 28 with the cover of deciding of adjacent another unit, and under the spring force effect, the good Transverse plane 29 of a pair of contact is arranged between them.The sealing mechanism of decompressor in unit links to each other like this, between fixed cover and floating ring, constitute all liquid fluid spaces, they and the slight clearance of axle between II constitute a ring thin layer leakage fluid circulation flow path, all spaces are connected with path, and can cut off the circulation of liquid stream between space and the path at said Transverse plane under the elastic force effect.
Overlapping the axle II and be sealingly fastened in the cap seat 30 of block set upper end portion with screw 35, it is shaped on stomidium, radially a hole and inner chamber, and section is hollow
Shape.Between the cap seat stomidium and the axle II of passing, general in the world 109B type mechanical sealing mechanism 33 is housed, or packing seal mechanism (not shown), compress with lid 34 with cap seat end face, the sealing of axle II, constitute the combination with unsteady ring type sealing decompressor, and constitute between cap seat inner chamber and the decompressor nut cap comprise the cap seat radially a hole at interior flow channel.
Regulating system is radially to connect a inboard, hole in connection seat chamber wall 31 places with joint and pipeline in the silk hole outside at the cap seat, the import that YI-10 type relief valve 36 is connected with joint and pipeline in the outside, this hole, valve outlet port are gone into the brin hole with what joint and pipeline were connected wall 6 places, connection seat chamber again.
Be used for horizontal multi-stage centrifugal pump as for this device, though expression in the accompanying drawing to relevant issues, as is selected horizontal land motor except that indicating content, select appropriate ones to be provided with supporting leg in bearing, connection seat or feed liquor seat, design is loaded on the basis of same shaft axis etc.Those of ordinary skill in the art can satisfactorily resolve, and repeats no more in the literary composition.
Working condition and design considerations are such: the pump external pressure that advances of pump generally is approximately 16MPa, the total axial force that acts on an II end can not surpass 800Kg, yet this moment, the pump discharge external pressure was not less than 26MPa, the total axial force that acts on pump shaft (going out) end has more than the 3000Kg, select the import environment of pump to reduce 2 so act on the axial force of an II end than the selected pump discharge environment of known technology---4 times, can simplify joining shaft, bearing means 4 and associated part thereof greatly.Moreover act on the axial force of pump shaft, fallen and reduce because can advance the axial force partial equilibrium of pump environment, this can not only simplify pump structure, also is of value to realizing adopting step by step impeller bearing respectively, reach again on pump case, the basis, the pump housing is digested voluntarily to axial force.
Liquid stream with first pressing enters feed liquor seat closed inner chamber from inlet opening, and the pump flow channel that advances that is provided with along hanger enters supercharging step by step in the pump, and to going out behind the pumping hole again along utilizing for the user through drain pipe between sleeve pipe and the pump case, the liquid flow path direction is with arrow 38 expressions.Yet be stressed that said space 37 places among the pump flow channel, be again to connect in the spline mode, the joint gap of coupling band and pump shaft or axle II certainly will form flow channel so, and this space also forms naturally to have and advance the liquid fluid space that the pump external pressure equates.
Place the into unsteady ring type sealing decompressor of pump environment, will between lid and axle II, introduce one axial leakage liquid stream, flow forward along the bearing unit in axle II surface from that end that gland is housed.All to all grade of decompression of leakage fluid stream, experiment shows generally can reduce 2.5-3.5 doubly according to theoretical each the unit sealing mechanism of decompressor of water resistance.But this moment, the axle II was in rotation, and block set is fixed, and fixed cover does not change substantially, and floating ring is not also changeed by the pin restriction substantially.But owing to be subjected to factor affecting such as axle rotation, liquid flow state, floating ring has some shake.Rely on the spring force effect and said that " to " compensation of Transverse plane, can in time proofread and correct and ensure determining and thin layer flow channel unimpeded of liquid fluid space shape.Flow to cap seat inner chamber through post-decompression leakage fluid stream from the flow channel between nut cap and the axle II, because external pressure herein generally is no more than 6.5MPa, so can realize effectively axially shutoff sealing with machinery or packing_seal structure.In order to keep this ambient condition to determine lastingly, also need leakage fluid is flowed continuously, radially draws in a silk hole from the cap seat enduringly, promptly turning back is radial leakage liquid stream.This liquid stream regulating system of flowing through enters and is full of the connection seat closed inner chamber, and external pressure is slightly larger than normal pressure in the normal conditions cavity of resorption.Lubricated, cooling to swing watt thrust bearing beyond the discharger, have been realized in the liquid stream radially silk hole of 9 places, bearing surface of contact, 10 places, 11 places, 12 places and spheric seating of will flowing through successively so.That section of silk hole to bearing support bottom is one section flow channel in 12 places, because only the seat of separate seat wall is built-in with rolling bearing, so also can realize the cooling to them.Flow through when big when factors such as component wear cause leakage fluid, need to regulate relief valve, reduce leakage flow, effectively seal to ensure machinery or packing seal body and said combination thereof.Have faint variation although regulate the flow stream pressure that reaches region of interest in the system of back, within the scope of design of regulation, the equipment that can not influence normally moves.
Claims (6)
1, a kind of sealing of boosting centrifugal pump, bearing-lubricating device, connect the joining shaft I that is supported in the swing watt axial rolling bearing by motor, it by coupling band again connecting sleeve the joining shaft II and the pump shaft that adopt machinery or packing seal body to carry out axial seal be housed form, it is characterized in that being provided with between joining shaft II and the pump shaft and can be communicated with the into liquid fluid space of pump flow channel; The joining shaft II is set with can be to from advancing that axial leakage liquid stream that the pump environment introduces reduces pressure gradually and by said axial seal shutoff and to turn back again be the unsteady ring type sealing decompressor of radial leakage liquid stream and the combination of machinery or packing seal body; Radial leakage liquid stream is through being gone into that the brin hole constitutes and by after regulating leakage fluid stream and realizing the regulating system of effective sealing of said combination by cap seat silk hole, relief valve, connection seat,, cooling lubricated for swing watt axial rolling bearing; And also have:
A, the ring type of floating sealing decompressor are the block set that is loaded on the feed liquor seat, and be equipped with respectively and gapped gland of joining shaft II and nut cap at two end part, and bearing unit is equipped with in the two inboard, the modular sealing mechanism of decompressor of segmented sheathing between the assembly; This mechanism comprise in its cylindrical and the block set circular shaft to sealing, interior circle is gapped with the axle II, two ends are shaped on respectively cooperates with the adjacent fixed seam that overlaps, and section is hollow
Shape decide cover, it is containing the floating ring that is hollow ten shapes with the gapped section of axle II, cover with encircle between spring is housed, floating ring is applied mechanically pin with adjacent deciding and is linked to each other;
B, swing watt axial rolling bearing formation lubricated, cooling are between the coupling band cylindrical and spheric seating end of double as slide plate chair, are provided with the flow channel of opening to the connection seat closed inner chamber; Between block and axle I, the block other end with at the bottom of the bearing support between the outside, bearing support be shaped between the spheric seating that the axial bars that is communicated with radially the silk hole stitches equal flow channels of being connected successively of formation in interior circle.
2, device according to claim 1, the deciding of the ring type sealing decompressor that it is characterized in that floating constitute all liquid fluid spaces between cover and the floating ring, they with the axle II between thin layer leakage fluid circulation flow path of gap formation, all spaces are connected with path.
3, device according to claim 1 and 2 is characterized in that in the unit sealing mechanism of decompressor that under the spring force effect, floating ring and adjacent deciding are with a pair of space that can cut off and flow the Transverse plane that circulates with path liquid.
4, device according to claim 1 is characterized in that regulating system goes into the brin hole by cap seat silk hole, relief valve, connection seat successively, is communicated with pipeline and joint to form.
5, device according to claim 1 is characterized in that said bearing unit, is to be inlaid with the rubber bush bearing lining that has axial bar shaped straight joint in interior circle in axle sleeve.
6, device according to claim 1 is characterized in that lubricated, cooling to swing watt axial rolling bearing, also comprises that section flow channel of spheric seating near radially silk hole to the bearing support bottom of upper-end surface system, forms the cooling to rolling bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91225748 CN2102399U (en) | 1991-10-07 | 1991-10-07 | Seal and bearing lubrication device of supercharging centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91225748 CN2102399U (en) | 1991-10-07 | 1991-10-07 | Seal and bearing lubrication device of supercharging centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2102399U true CN2102399U (en) | 1992-04-22 |
Family
ID=4931970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91225748 Withdrawn CN2102399U (en) | 1991-10-07 | 1991-10-07 | Seal and bearing lubrication device of supercharging centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2102399U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1139729C (en) * | 2000-05-12 | 2004-02-25 | 清华大学 | Shielded pipeline pump |
| CN1318762C (en) * | 2006-03-31 | 2007-05-30 | 浙江水泵总厂有限公司 | High temperature high pressure hot-water circulating pump |
| CN100427767C (en) * | 2003-05-23 | 2008-10-22 | 伟尔矿业澳大利亚有限公司 | Pressure relief arrangement for a pump |
| CN103121503A (en) * | 2011-11-18 | 2013-05-29 | 镇江江大泵业科技有限公司 | Novel long shaft pump anti-swing device used for ship |
| CN105164423A (en) * | 2012-12-20 | 2015-12-16 | 苏尔寿管理有限公司 | Multiphase pump with separator, wherein the process fluid lubricates and cools the pump |
| CN111974244A (en) * | 2019-05-22 | 2020-11-24 | 苏尔寿管理有限公司 | Rotary machine for acting on a process fluid |
-
1991
- 1991-10-07 CN CN 91225748 patent/CN2102399U/en not_active Withdrawn
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1139729C (en) * | 2000-05-12 | 2004-02-25 | 清华大学 | Shielded pipeline pump |
| CN100427767C (en) * | 2003-05-23 | 2008-10-22 | 伟尔矿业澳大利亚有限公司 | Pressure relief arrangement for a pump |
| CN101440816B (en) * | 2003-05-23 | 2013-01-16 | 伟尔矿业澳大利亚有限公司 | Pressure relief arrangement for a pump |
| CN1318762C (en) * | 2006-03-31 | 2007-05-30 | 浙江水泵总厂有限公司 | High temperature high pressure hot-water circulating pump |
| CN103121503A (en) * | 2011-11-18 | 2013-05-29 | 镇江江大泵业科技有限公司 | Novel long shaft pump anti-swing device used for ship |
| CN105164423A (en) * | 2012-12-20 | 2015-12-16 | 苏尔寿管理有限公司 | Multiphase pump with separator, wherein the process fluid lubricates and cools the pump |
| US10066635B2 (en) | 2012-12-20 | 2018-09-04 | Sulzer Management Ag | Multiphase pump |
| US10890193B2 (en) | 2012-12-20 | 2021-01-12 | Sulzer Management Ag | Multiphase pump |
| CN111974244A (en) * | 2019-05-22 | 2020-11-24 | 苏尔寿管理有限公司 | Rotary machine for acting on a process fluid |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FI74779C (en) | Shaft seal system for screw compressor. | |
| CN101454575A (en) | Improved water- injected screw compressor element. | |
| CN200958669Y (en) | Rotary compensator | |
| CN111963685B (en) | Combined cartridge type dynamic seal based on magnetic fluid | |
| US6135723A (en) | Efficient Multistage pump | |
| CN85106863A (en) | The crown roll of adjustable heating | |
| CN2102399U (en) | Seal and bearing lubrication device of supercharging centrifugal pump | |
| US4632402A (en) | Shaft seal with both hydrostatic and hydrodynamic pressure parts | |
| CN1029702C (en) | Sealing and bearing-lubricating device for centrifugal booster pump | |
| CN2859040Y (en) | High-pressure self-balancing two-housing segment centrifugal pump | |
| USRE32055E (en) | Method of operation for an oil-injected screw-compressor | |
| CN105736405A (en) | Small-flow high-lift centrifugal pump | |
| CN204299866U (en) | Cantilever type lubrication three screw pump | |
| CN114704462A (en) | Screw compressor unit with double lubricating oil ways for working | |
| CN2168103Y (en) | mechanical-electric pipe pump | |
| CN2572071Y (en) | Composite screw counter-force balance seal device | |
| CN203453075U (en) | Compound pump | |
| CN101509458B (en) | Exempt-maintenance self-lubricating bearing apparatus of water turbine for cooling tower | |
| CN207437384U (en) | Amphibious pipeline pump | |
| CN2268132Y (en) | Tubular bag type oil-transporting electric pump | |
| CN2044653U (en) | Tubular peristaltic meatering pump | |
| CN2527747Y (en) | Impeller type centrifugal screening electric pump | |
| CN103410742A (en) | Compound pump | |
| US3113525A (en) | Modified pump for viscous material | |
| CN87205194U (en) | Improved circular centrifugal pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE; FROM: TIANJIN ELECTRICAL MACHINERY GENERAL FACTORY TO: TIANJIN SIBOTAIKE DIVING ELECTRIC PUMP CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Patentee after: Siboteke Submerged Electric Pump Co., Ltd., Tianjin Patentee before: Tianjin Electrical Motor General Plant |
|
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |