CN104895826A - Bearing part for vertical multi-stage pump - Google Patents
Bearing part for vertical multi-stage pump Download PDFInfo
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- CN104895826A CN104895826A CN201510229419.9A CN201510229419A CN104895826A CN 104895826 A CN104895826 A CN 104895826A CN 201510229419 A CN201510229419 A CN 201510229419A CN 104895826 A CN104895826 A CN 104895826A
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Abstract
The invention discloses a bearing part for a vertical multi-stage pump. The bearing part mainly comprises a bearing box, wherein a bearing cover is arranged at the upper end of the bearing box; an insertion hole is formed in the bearing cover; a shaft penetrates through the insertion hole to be inserted in the bearing box; a bearing sleeve coats the shaft in the bearing box; a bearing is arranged between the bearing sleeve and the bearing box; a rotor is arranged in the bearing; the bearing is fixed on the shaft through a locking nut; the locking nut and the shaft are in threaded connection; an oil tank is arranged in the bearing box, and is positioned at the lower part of the bearing; and lubricant is filled in the oil tank, and is conveyed onto the bearing through forced circulation of the bearing sleeve. The vertical multi-stage pump is deeper in underwater depth, and is longer in rotor part; axial force is generated by such factors as axial water thrust and the weight of a rotating part in operation; and in order to balance the axial force, the reasonably designed bearing part is a key point of guaranteeing normal pump operation, guarantees the satisfaction of use requirements in such industries as petroleum and petrifaction, and is safe and reliable.
Description
Technical field:
The present invention relates to a kind of bearing part for vertical pump, particularly relate to a kind of bearing part of low temperature resistant for petroleum chemical industry, corrosion resistant MODEL VERTICAL MULTISTAGE PUMP.
Background technique:
In ethylene unit, the separation of cracking gas mainly adopts separation by deep refrigeration.Under a certain pressure, C2 component need-30 ~-40 DEG C of separation, the component of methane and hydrogen need below-90 DEG C cryogenic separation.These cryogenic medias only have and could exist with liquid phase by lowering the temperature and pressurizeing.Vertical low temperature pump, due to first stage impeller minimum point under liquid, reduces NPSH effectively, solves the problem that in ethylene unit, cryopump device net positive suction head is low; Meanwhile, because the parts such as impeller, stator of vertical low temperature pump are embedded in underground, can avoid due to air and sunshine etc. factor on the impact of medium temperature, cold insulation is effective.Due to said structure feature, vertical low temperature pump is widely applied in ethylene unit or other cryogenic devices.
Under MODEL VERTICAL MULTISTAGE PUMP liquid, the degree of depth is comparatively dark, and rotor part is longer, and because the reasons such as axial hydraulic thrust and rotatable parts weight produce axial force during operation, for balancing this part axial force, bearing body part reasonable in design is the key point ensureing that pump normally runs.
Summary of the invention:
Technical problem to be solved by this invention is the defect overcoming prior art, provides a kind of bearing part for MODEL VERTICAL MULTISTAGE PUMP.
Technical problem to be solved by this invention realizes by the following technical solutions.
A kind of bearing part for MODEL VERTICAL MULTISTAGE PUMP, it is characterized in that: mainly comprise bearing housing, bearing housing upper end is provided with bearing cap, bearing cap is provided with jack, axle is inserted in bearing housing through jack, on axle in described bearing housing, cover has bearing housing, described bearing is placed between bearing housing and is provided with bearing, bearing is arranged on axle by bearing housing, dismounting maintenance is more convenient, bearing lower end round nut locking and positioning, bearing pre-fastening regulates by round nut, prevent bearing from causing bearing running hot because pretightening force is excessive or pretightening force is too small causes bearing play,
Bearing inner is provided with rotor, bearing is fixed on axle by locking nut, locking nut is threaded with axle, during assembling, locking nut is unclamped, until rotor sink down into bottom time by locking nut and bearing housing locked, upwards carry 3 ~ 5mm by the screw thread between locking nut and axle again, simple to operation, difficulty is low;
Be provided with fuel tank in bearing housing, fuel tank is positioned at bearing bottom, and fill lubricant oil in fuel tank, lubricant oil is transported on bearing by the pump circulation of bearing housing.
The angular contact ball bearing that described Selection of Bearings is installed face-to-face, the bearing load line of this bearing pairing mode is polymerized towards bearing axis, and bearing combination can bear the axial load and radial load that act on both direction.
Splashing fuel feeding is not directly immersed in oil by bearing, and the method that the spittle produced when utilizing solid of rotation around to rotate lubricates.Consider that this bearing part bearing is positioned at above grease chamber, adopt bath lubrication need lubricants capacity very greatly and easily cause oil leak, therefore bearing lubrication adopts splash lubrication.Bearing housing indoor design has oil-return groove, and when rotor operates, bearing housing rotates with axle, lubricant oil along with bearing housing splashing ring under the influence of centrifugal force, upwards flow along oil-return groove, enter Bearing inner, play lubrication.
Be provided with lining in described bearing housing, lining is enclosed within axle lower end, and lining and bearing housing interference fit are as oil sealing, lubricating oil viscosity coordinates with round metal cylinder greatly herein makes oil sealing, and lubricant oil not easily leaks from this, and this oil-sealing measures life-span is longer, oil sealing ability is stablized, and need not safeguard.
Jack on described bearing cap is provided with oil sealing, and oil sealing adopts inpro labyrinth seal, advanced technology, and oil sealing ability is strong, and long service life is easy to maintenance.
Described bearing cap is provided with air relief cock, and air relief cock is arranged on bearing cap by straight-run of pipe and 90 ° of elbows, and be positioned at the top of bearing part, lubricant oil can add in bearing housing from this.After bearing operation certain hour, the temperature potential of lubricant oil rises, and partial lubrication oil gasification, causes bearing housing internal pressure to raise.Oil gas in bearing housing can be discharged by air relief cock, equalizer bearing tank pressure.
Permanent position lubricating cup has been installed in described bearing housing side, and opposite side is provided with tubulose oil ga(u)ge, and when the oil level in bearing housing declines, permanent position lubricating cup can realize automatic makeup functional oil, maintains the oil level in fuel tank, ensures that bearing lubrication system is stablized.Tubulose oil ga(u)ge can observe the oil level in fuel tank intuitively.
In view of the particularity of this bearing part applying working condition, all component all adopt Martensitic Stain Less Steel 2C13, and this material cutting ability well, is easily processed, hardness is high, good corrosion resistance, welding performance is excellent, can ensure safe and stable operation under the working condition such as low temperature, high temperature.This bearing part is designed with 5 kinds of specifications and models altogether, can bear 18000Nm moment, most high-transmission 1850kw power.
Under MODEL VERTICAL MULTISTAGE PUMP liquid of the present invention, the degree of depth is darker, rotor part is longer, because the reasons such as axial hydraulic thrust and rotatable parts weight produce axial force during operation, for balancing this part axial force, bearing body part reasonable in design is the key point ensureing that pump normally runs, this bearing part master according to API610 " oil, petrochemical industry and rock gas pump " the standard design manufacture that API issues, ensures that it meets the usage requirement of the industry such as oil, petrochemical industry completely, safe and reliable.
Accompanying drawing illustrates:
Fig. 1 is structural representation of the present invention;
Fig. 2 is A place enlarged diagram in Fig. 1;
1---inpro labyrinth seal, 2---oil-return groove, 3---bearing housing, 4---bearing housing splashing ring, 5---bearing housing, 6---permanent position lubricating cup, 7---tubulose oil ga(u)ge, 8---lining, 9---locking nut, 10---angular contact ball bearing, 11---air relief cock, 12---bearing cap.
Embodiment:
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the present invention further.
A kind of bearing part for MODEL VERTICAL MULTISTAGE PUMP as depicted in figs. 1 and 2, mainly comprise bearing housing 5, bearing housing upper end is provided with bearing cap 12, bearing cap is provided with jack, axle is inserted in bearing housing through jack, on axle wherein in bearing housing, cover has bearing housing 3, its centre bearer bush is provided with bearing between bearing housing, bearing is arranged on axle by bearing housing, dismounting maintenance is more convenient, bearing lower end round nut locking and positioning, bearing pre-fastening regulates by round nut, prevent bearing from causing bearing running hot because pretightening force is excessive or pretightening force is too small causes bearing play,
Bearing inner is provided with rotor, bearing is fixed on axle by locking nut 9, locking nut is threaded with axle, during assembling, locking nut is unclamped, until rotor sink down into bottom time by locking nut and bearing housing locked, upwards carry 3 ~ 5mm by the screw thread between locking nut and axle again, simple to operation, difficulty is low;
Be provided with fuel tank in bearing housing, fuel tank is positioned at bearing bottom, and fill lubricant oil in fuel tank, lubricant oil is transported on bearing by the pump circulation of bearing housing.
The wherein angular contact ball bearing 10 installed face-to-face of Selection of Bearings, the bearing load line of this bearing pairing mode is polymerized towards bearing axis, and bearing combination can bear the axial load and radial load that act on both direction.
Splashing fuel feeding is not directly immersed in oil by bearing, and the method that the spittle produced when utilizing solid of rotation around to rotate lubricates.Consider that this bearing part bearing is positioned at above grease chamber, adopt bath lubrication need lubricants capacity very greatly and easily cause oil leak, therefore bearing lubrication adopts splash lubrication.Bearing housing indoor design has oil-return groove 2, and when rotor operates, bearing housing rotates with axle, lubricant oil along with bearing housing splashing ring 4 under the influence of centrifugal force, upwards flow along oil-return groove, enter Bearing inner, play lubrication.
Wherein be provided with lining 8 in bearing housing, lining is enclosed within axle lower end, and lining and bearing housing interference fit are as oil sealing, lubricating oil viscosity coordinates with round metal cylinder greatly herein makes oil sealing, and lubricant oil not easily leaks from this, and this oil-sealing measures life-span is longer, oil sealing ability is stablized, and need not safeguard.
Jack wherein on bearing cap is provided with oil sealing, and oil sealing adopts inpro labyrinth seal 1, advanced technology, and oil sealing ability is strong, and long service life is easy to maintenance.
Wherein bearing cap is provided with air relief cock 11, and air relief cock is arranged on bearing cap by straight-run of pipe and 90 ° of elbows, and be positioned at the top of bearing part, lubricant oil can add in bearing housing from this.After bearing operation certain hour, the temperature potential of lubricant oil rises, and partial lubrication oil gasification, causes bearing housing internal pressure to raise.Oil gas in bearing housing can be discharged by air relief cock, equalizer bearing tank pressure.
Wherein permanent position lubricating cup 6 has been installed in bearing housing side, and opposite side is provided with tubulose oil ga(u)ge 7, and when the oil level in bearing housing declines, permanent position lubricating cup can realize automatic makeup functional oil, maintains the oil level in fuel tank, ensures that bearing lubrication system is stablized.Tubulose oil ga(u)ge can observe the oil level in fuel tank intuitively.
In view of the particularity of this bearing part applying working condition, all component all adopt Martensitic Stain Less Steel 2C13, and this material cutting ability well, is easily processed, hardness is high, good corrosion resistance, welding performance is excellent, can ensure safe and stable operation under the working condition such as low temperature, high temperature.This bearing part is designed with 5 kinds of specifications and models altogether, can bear 18000Nm moment, most high-transmission 1850kw power.
More than show and describe basic principle of the present invention, major character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (7)
1. the bearing part for MODEL VERTICAL MULTISTAGE PUMP, it is characterized in that: mainly comprise bearing housing, bearing housing upper end is provided with bearing cap, bearing cap is provided with jack, axle is inserted in bearing housing through jack, on axle in described bearing housing, cover has bearing housing, described bearing is placed between bearing housing and is provided with bearing, Bearing inner is provided with rotor, bearing is fixed on axle by locking nut, locking nut is connected with male thread, fuel tank is provided with in bearing housing, fuel tank is positioned at bearing bottom, lubricant oil is filled in fuel tank, lubricant oil is transported on bearing by the pump circulation of bearing housing.
2., according to a kind of bearing part for MODEL VERTICAL MULTISTAGE PUMP described in claim 1, it is characterized in that: the angular contact ball bearing that described Selection of Bearings is installed face-to-face.
3. according to a kind of bearing part for MODEL VERTICAL MULTISTAGE PUMP described in claim 1, it is characterized in that: described bearing housing indoor design has oil-return groove, when rotor operates, bearing housing rotates with axle, lubricant oil along with bearing housing splashing ring under the influence of centrifugal force, upwards flow along oil-return groove, enter Bearing inner, play lubrication.
4. according to a kind of bearing part for MODEL VERTICAL MULTISTAGE PUMP described in claim 1, it is characterized in that: be provided with lining in described bearing housing, lining is enclosed within axle lower end, and lining and bearing housing interference fit are as oil sealing.
5. according to a kind of bearing part for MODEL VERTICAL MULTISTAGE PUMP described in claim 1, it is characterized in that: the jack on described bearing cap is provided with oil sealing, oil sealing adopts inpro labyrinth seal.
6. according to a kind of bearing part for MODEL VERTICAL MULTISTAGE PUMP described in claim 1, it is characterized in that: described bearing cap is provided with air relief cock, air relief cock is arranged on bearing cap by straight-run of pipe and 90 ° of elbows.
7. according to a kind of bearing part for MODEL VERTICAL MULTISTAGE PUMP described in claim 1, it is characterized in that: permanent position lubricating cup has been installed in described bearing housing side, and opposite side is provided with tubulose oil ga(u)ge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510229419.9A CN104895826A (en) | 2015-05-07 | 2015-05-07 | Bearing part for vertical multi-stage pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510229419.9A CN104895826A (en) | 2015-05-07 | 2015-05-07 | Bearing part for vertical multi-stage pump |
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| CN104895826A true CN104895826A (en) | 2015-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510229419.9A Pending CN104895826A (en) | 2015-05-07 | 2015-05-07 | Bearing part for vertical multi-stage pump |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107503951A (en) * | 2017-10-12 | 2017-12-22 | 泽尼特泵业（苏州）有限公司 | A kind of electronic type automatic oiling submersible pump |
| CN108240350A (en) * | 2017-12-28 | 2018-07-03 | 西安航天泵业有限公司 | A kind of vertical pump parts of bearings and MODEL VERTICAL MULTISTAGE PUMP |
| CN109630214A (en) * | 2018-12-12 | 2019-04-16 | 中国北方发动机研究所(天津) | A kind of vertical turbine bearing arrangement |
| CN110439804A (en) * | 2019-06-28 | 2019-11-12 | 武汉船用机械有限责任公司 | Lubricating arrangement for deep-well pump drive shaft |
| CN110985551A (en) * | 2019-11-08 | 2020-04-10 | 西安泵阀总厂有限公司 | Long-distance vertical floating support shafting structure |
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| US5639165A (en) * | 1994-08-04 | 1997-06-17 | Hitachi, Ltd. | Method of operating pump and bearing device for pump |
| CN201106574Y (en) * | 2007-08-15 | 2008-08-27 | 沈阳鼓风机(集团)有限公司 | Self-lubricating thrust unit and balance mechanism of vertical pump |
| CN201162709Y (en) * | 2008-03-05 | 2008-12-10 | 长沙天鹅工业泵股份有限公司 | Self-lubricating thrust bearing apparatus of vertical pump |
| CN201347885Y (en) * | 2008-12-24 | 2009-11-18 | 山东双轮集团股份有限公司 | Vertical pump bearing automatic lubricating device |
| CN201386687Y (en) * | 2009-03-03 | 2010-01-20 | 上海伟尔泵业有限公司 | Rolling bearing cooling and lubricating device for high-power vertical centrifugal pump |
| CN201943994U (en) * | 2010-12-20 | 2011-08-24 | 西安泵阀总厂有限公司 | Thin oil compulsory circulation lubrication and cooling structure for vertical high temperature pump bearing |
| CN202194849U (en) * | 2011-07-05 | 2012-04-18 | 长沙同大水泵实业有限公司 | Device utilizing oil groove to automatically lubricate vertical pump bearing |
| CN203926108U (en) * | 2014-07-03 | 2014-11-05 | 襄阳五二五泵业有限公司 | A kind of vertical type pump bearing oil lubrication structure |
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2015
- 2015-05-07 CN CN201510229419.9A patent/CN104895826A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5639165A (en) * | 1994-08-04 | 1997-06-17 | Hitachi, Ltd. | Method of operating pump and bearing device for pump |
| CN201106574Y (en) * | 2007-08-15 | 2008-08-27 | 沈阳鼓风机(集团)有限公司 | Self-lubricating thrust unit and balance mechanism of vertical pump |
| CN201162709Y (en) * | 2008-03-05 | 2008-12-10 | 长沙天鹅工业泵股份有限公司 | Self-lubricating thrust bearing apparatus of vertical pump |
| CN201347885Y (en) * | 2008-12-24 | 2009-11-18 | 山东双轮集团股份有限公司 | Vertical pump bearing automatic lubricating device |
| CN201386687Y (en) * | 2009-03-03 | 2010-01-20 | 上海伟尔泵业有限公司 | Rolling bearing cooling and lubricating device for high-power vertical centrifugal pump |
| CN201943994U (en) * | 2010-12-20 | 2011-08-24 | 西安泵阀总厂有限公司 | Thin oil compulsory circulation lubrication and cooling structure for vertical high temperature pump bearing |
| CN202194849U (en) * | 2011-07-05 | 2012-04-18 | 长沙同大水泵实业有限公司 | Device utilizing oil groove to automatically lubricate vertical pump bearing |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107503951A (en) * | 2017-10-12 | 2017-12-22 | 泽尼特泵业（苏州）有限公司 | A kind of electronic type automatic oiling submersible pump |
| CN108240350A (en) * | 2017-12-28 | 2018-07-03 | 西安航天泵业有限公司 | A kind of vertical pump parts of bearings and MODEL VERTICAL MULTISTAGE PUMP |
| CN108240350B (en) * | 2017-12-28 | 2023-12-01 | 西安航天泵业有限公司 | Bearing component for vertical pump and vertical multi-stage pump |
| CN109630214A (en) * | 2018-12-12 | 2019-04-16 | 中国北方发动机研究所(天津) | A kind of vertical turbine bearing arrangement |
| CN110439804A (en) * | 2019-06-28 | 2019-11-12 | 武汉船用机械有限责任公司 | Lubricating arrangement for deep-well pump drive shaft |
| CN110985551A (en) * | 2019-11-08 | 2020-04-10 | 西安泵阀总厂有限公司 | Long-distance vertical floating support shafting structure |
| CN110985551B (en) * | 2019-11-08 | 2021-08-06 | 西安泵阀总厂有限公司 | Long-distance vertical floating support shafting structure |
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Application publication date: 20150909 |
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| RJ01 | Rejection of invention patent application after publication |