CN107289029A - A kind of high temperature pump bearing box with augmentation of heat transfer structure - Google Patents

A kind of high temperature pump bearing box with augmentation of heat transfer structure Download PDF

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Publication number
CN107289029A
CN107289029A CN201710609275.9A CN201710609275A CN107289029A CN 107289029 A CN107289029 A CN 107289029A CN 201710609275 A CN201710609275 A CN 201710609275A CN 107289029 A CN107289029 A CN 107289029A
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CN
China
Prior art keywords
bearing
bearing housing
heat transfer
temperature
augmentation
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.)
Pending
Application number
CN201710609275.9A
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Chinese (zh)
Inventor
刘栋
薛锋
王颖泽
丁仕成
汤承
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Jiangsu University
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Jiangsu University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jiangsu University filed Critical Jiangsu University
Priority to CN201710609275.9A priority Critical patent/CN107289029A/en
Publication of CN107289029A publication Critical patent/CN107289029A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C35/00Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C37/00Cooling of bearings
    • F16C37/007Cooling of bearings of rolling bearings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2300/00Application independent of particular apparatuses
    • F16C2300/40Application independent of particular apparatuses related to environment, i.e. operating conditions
    • F16C2300/54Application independent of particular apparatuses related to environment, i.e. operating conditions high-temperature

Abstract

The present invention provides a kind of high temperature pump bearing box with augmentation of heat transfer structure, including bearing housing, groove, bearing, cavity, corrugated radiating fin, pump main shaft and bearing box cover;Cavity is provided with the bearing housing, the pump main shaft passes through cavity and two ends are fixed on bearing housing by bearing;The bearing box cover is separately mounted to the both sides of bearing housing;The internal face of the bearing housing sets some grooves, and bearing housing outside wall surface sets some corrugated radiating fins.High-temperature pump is operationally, lubricating oil absorbs the heat of bearing, bearing housing is by groove and corrugated fin collective effect by the heat transfer of lubricating oil in the higher case of temperature to air outside case, so high-temperature medium passes to the heat of bearing and the heat of bearing self friction generation can be obtained by good release, it effectively prevent the phenomenon of Bearing Temperature, it is to avoid influence is produced on bearing life.The present invention can be used for transforming existing high-temperature pump, so as to realize the air cooling of high-temperature pump.

Description

A kind of high temperature pump bearing box with augmentation of heat transfer structure
Technical field
The present invention relates to applied to metallurgy, electric power, petrochemical industry, residual heat and energy utilize system in pipeline or loop in, Convey the bearing housing structure in the pump of high-temp liquid medium, and in particular to a kind of high temperature pump bearing with augmentation of heat transfer structure Case.
Background technology
High-temperature pump is the new pump using the contactless transmission moment of torsion of permanent magnet clutch operation principle, outside prime mover drives During magnetic steel rotor, interior magnetic steel rotor synchronous rotary is driven by the effect in magnetic field, and interior magnetic steel rotor and impeller are connected, from And reach the purpose of contactless impeller rotation.It is closed in due to liquid in static separation sleeve, so high-temperature pump is one Totally-enclosed, No leakage pump-type is planted, therefore has prevented the disadvantage of the inevitable run, drip, leak of centrifugal pump with mechanical seal completely Disease.The flow passage components of high-temperature pump are made of stainless steel (304,316L), are widely used in oil, chemical industry, pharmacy, plating, ring The departments such as guarantor, water process, national defence, are inflammable, explosive, poisonous and precious liquid the ideal equipments of conveying, are to create No leakage, nothing The optimal selection in the civilized workshop of pollution.
It may require that in the fields such as metallurgy, power station, chemical industry, residual heat and energy and use water pump for pipeline in system or close back The cooling of road high temperature medium.
Conventional pumps do not have cooling device, its mechanical seal and bearing can not bear high-temperature medium and can not longtime running, because This conventional pumps can not meet the use condition of conveying high-temp liquid system at all.
Although having been achieved for certain progress in bearing temperature control aspect at present, bearing operating temperatures still need to otherwise It is disconnected to improve, increase bearing life this task by improving bearing operating temperatures and still exist.Existing patent CN 101713419A, device ring oiler and groove in bearing housing, this technology further groove mainly plays guide functions, moreover, it is contemplated that arriving The normal operation ring oiler of bearing can not be too big, and this, which is also resulted in, can only have a small amount of oil to be tossed, so cooling effect is just not Meeting is it is obvious that in addition, the huge pressure that ring oiler is born is likely to make its easily deformation, and because ring oiler is in bearing housing So it is also a problem to change.
The content of the invention
The purpose of the present invention is to provide a kind of high temperature pump bearing box with augmentation of heat transfer structure, bearing regarding to the issue above Chamber interior wall face processes physical dimension identical rectangle groove, strengthens the heat transfer of fluid in bearing housing and bearing housing, bearing box outer wall Corrugated radiating fin is installed in face, and the higher bearing of temperature and lubricating oil are transferred into the heat transmission of bearing housing to outside bearing housing In air.Operationally, lubricating oil absorbs the heat of bearing to high-temperature pump, and bearing housing passes through groove and corrugated fin collective effect By the heat transfer of lubricating oil in the higher case of temperature to air outside case, such high-temperature medium passes to the heat and axle of bearing The heat for holding self friction generation can be obtained by good release, effectively prevent the phenomenon of Bearing Temperature, it is to avoid Influence is produced on bearing life.The present invention can be used for transforming existing high-temperature pump, so as to realize the sky of high-temperature pump It is cold.The bearing housing increases the heat-transfer surface of surfaces externally and internally in guarantee high-temperature pump on the premise of the objective condition such as pump shaft rotating speed are not changed Product, intensified bearing case and internal lubrication oil and the heat transfer with extraneous air, so as to reduce bearing operating temperatures.
The technical scheme is that:A kind of high temperature pump bearing box with augmentation of heat transfer structure, including bearing housing, ditch Groove, bearing, cavity, corrugated radiating fin, pump main shaft and bearing box cover;
Cavity is provided with the bearing housing, the pump main shaft passes through cavity and two ends are fixed on bearing housing by bearing; The bearing box cover is separately mounted to the both sides of bearing housing;Fluid media (medium) of the injection with lubrication in the cavity, such as moistens Lubricating oil, the bearing is immersed in fluid media (medium);
The internal face of the bearing housing is uniformly arranged some grooves, and bearing housing outside wall surface is uniformly arranged some corrugated radiatings Fin.The higher lubricating oil of temperature is closed by the bearing housing, and the internal face of bearing housing sets groove, first works as high-temperature pump To be formed swirl flow enhancing disturbance during work in groove so as to augmentation of heat transfer, second increase internal face heat exchange area, bearing It is immersed in lubricating oil, bearing housing outside wall surface sets corrugated radiating fin, to increase outside wall surface heat exchange area so as to augmentation of heat transfer.
In such scheme, the external diameter of the corrugated radiating fin is the outer diameter D of 1.5~2.5 times of bearing housingo, thickness For the outer diameter D of 0.075~0.125 times of bearing housingo
Further, the external diameter of the corrugated radiating fin is the outer diameter D of 2 times of bearing housingo, thickness is 0.1 times The outer diameter D of bearing housingo
Further, the number of the corrugated radiating fin is 20.
In such scheme, some grooves are size identical rectangle.
Further, the depth of the groove is 0.075* (D0- D)~0.15 (D0- D), width is 0.1* (D0- D)~ 0.2(D0- D), DoFor the external diameter of bearing housing, D is the internal diameter of bearing housing.
Further, the depth of the groove is 0.075* (D0- D), width is 0.1* (D0- D), the deep width of the groove Than for 0.75.
In such scheme, the corrugated radiating fin is integrated design with bearing housing.
The present invention is in hot water circuit pump operation, and bearing housing is static, and bearing rotates at a high speed around pump main shaft, in bearing housing Inwall sets a number of groove, and trench interiors can form stronger swirl flow, and the flowing can play enhancing heat transfer Effect, the fluid heat in cavity can be rapidly transferred on bearing housing, corrugated radiating fin is arranged on bearing housing In outside wall surface, the external diameter of corrugated radiating fin is 2Do, thickness is 0.1DoWhen reach optimal heat-transfer effect.The corrugated radiates Fin can strengthen the heat convection of bearing housing and extraneous air, and the corrugated installed by internal face groove and outside wall surface radiates Fin bearing housing with internal lubrication oil and acted on the heat exchange of external fluid to strengthen.Hot water circulating pump operationally, lubricates Oil absorbs the heat of bearing and transfers heat to air outside bearing housing by bearing housing, and such high-temperature medium axially passes through Heat when pump shaft passes to heat and pump bearing itself rotation of bearing produced by friction can be obtained by good release, Just it is not enough to the operation on bearing and produces influence.
Compared with prior art, the beneficial effects of the invention are as follows:
1. bearing housing outside wall surface of the present invention sets corrugated radiating fin, to increase outside wall surface heat exchange area so as to strengthen biography Heat.
2. it is heat conduction reinforced so as to cause to form swirl flow enhancing disturbance during high temperature pump work of the present invention in groove.Moistened All grooves directly contacted therewith of lubricating oil covering will greatly increase the heat transfer area of lubricating oil and bearing housing so as to strengthen Heat transfer.
Radiator heat-dissipation effect preferably, can reach and add when 3. the quantity of corrugated radiating fin of the present invention is 20 The effect of strong bearing housing and the heat convection of surrounding air.
Heat-transfer effect is optimal when 4. the depth-to-width ratio of groove of the present invention is 0.75.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Fig. 2 is the schematic diagram of middle (center) bearing box structure of the present invention.
In figure, 1. bearing housings;2. groove;3. bearing;4. cavity;5. corrugated radiating fin;6. pump main shaft;7. bearing housing Lid.
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and detailed description, but protection scope of the present invention It is not limited to this.
Fig. 1 show a kind of embodiment of the high temperature pump bearing box of the present invention with augmentation of heat transfer structure, described High temperature pump bearing box with augmentation of heat transfer structure include bearing housing 1, groove 2, bearing 3, cavity 4, corrugated radiating fin 5, Pump main shaft 6 and bearing box cover 7;Cavity 4 is provided with the bearing housing 1, the pump main shaft 6 is through cavity 4 and two ends pass through bearing 3 are fixed on bearing housing 1;The bearing box cover 7 is separately mounted to the both sides of bearing housing 1.
As shown in Fig. 2 the internal face of the bearing housing 1 sets some grooves 2, the outside wall surface of bearing housing 1 sets some ripples Shape radiating fin 5.The higher lubricating oil of temperature is closed by injection lubricating oil in the cavity 4, bearing housing 1, bearing housing 1 Internal face sets groove 2, first to be formed swirl flow enhancing disturbance when hot water pump work in groove so as to augmentation of heat transfer, Second internal face heat exchange area is increased.
Some grooves 2 are evenly arranged in the internal face of bearing housing 1.The groove 2 is size identical rectangle.It is described The depth of groove 2 is 0.075* (Do- D)~0.15 (D0- D), width is 0.1* (Do- D)~0.2 (D0- D), DoFor bearing housing 1 External diameter, D is the internal diameter of bearing housing 1, and the depth-to-width ratio of the groove 2 is 0.375~1.5.Preferably, the depth of the groove 2 is 0.075*(Do- D), width is 0.1* (Do- D), DoFor the external diameter of bearing housing 1, D is the internal diameter of bearing housing 1, the depth of the groove 2 It is wide than for 0.75 when heat-transfer effect it is optimal.
Outside wall surface of the uniform fixed and arranged of some corrugated radiating fins 5 in bearing housing 1.It is preferred that, the ripple Shape radiating fin is integrated design with bearing housing 1.The external diameter of the corrugated radiating fin 5 is 1.5~2.5 times of bearing housing 1 Outer diameter Do, thickness is the outer diameter D of 0.075~0.125 times of bearing housing 1o.Preferably, the corrugated radiating fin 5 is outer Footpath is the outer diameter D of 2 times of bearing housing 1o, thickness is the outer diameter D of 0.1 times of bearing housing 1o.Of the corrugated radiating fin 5 Radiator heat-dissipation effect preferably, can reach the effect for the heat convection for strengthening bearing housing and surrounding air when number is 20.
The use process of the present invention:
When pump main shaft 6 rotates at a high speed, bearing housing 1 is static, and bearing 3 rotates at a high speed around pump main shaft 6, in bearing housing 1 Inwall sets a number of groove 2, and the inside of groove 2 can form stronger swirl flow, and the flowing can play enhancing and pass Fluid heat in cavity 4, can be rapidly transferred on bearing housing 1, the ripple in the outside wall surface of bearing housing 1 by the effect of heat Line shape radiating fin 5 can strengthen the heat convection of bearing housing 1 and extraneous air, internal face groove 2 and corrugated radiating fin 5 Collective effect increase bearing 3 is transferred to the heat of the outer air of bearing housing 1 by lubricating oil and bearing housing 1, and pump main shaft 6 passes through bearing The part of case 1 is longer than the axle of common high-temperature pump, which further increases the area of dissipation of bearing housing 1, enhances the work(of radiating Energy.Bearing housing 1 of the present invention effectively discharges the heat that high-temperature medium passes to bearing by main shaft 6, the internal face of bearing housing 1 The corrugated radiating fin 5 that the structure of groove 2 and outside wall surface of setting are installed can be quickly by the heat of the higher bearing 3 of temperature Transmitted to surrounding environment, so as to ensure that the long-time steady operation of bearing 3, realize the operation of high-temperature pump steadily in the long term.
The a series of detailed description of those listed above illustrating only for the possible embodiments of the present invention, They simultaneously are not used to limit the scope of the invention, all equivalent embodiments made without departing from skill spirit of the present invention or change It should be included in the scope of the protection.

Claims (8)

1. a kind of high temperature pump bearing box with augmentation of heat transfer structure, it is characterised in that including bearing housing (1), groove (2), axle Hold (3), cavity (4), corrugated radiating fin (5), pump main shaft (6) and bearing box cover (7);
Cavity (4) is provided with the bearing housing (1), the pump main shaft (6) is through cavity (4) and two ends are fixed by bearing (3) On bearing housing (1);The bearing box cover (7) is separately mounted to the both sides of bearing housing (1);Injection has in the cavity (4) The fluid media (medium) of lubrication, the bearing (3) is immersed in fluid media (medium);
The internal face of the bearing housing (1) is uniformly arranged some grooves (2), and bearing housing (1) outside wall surface is uniformly arranged some ripples Shape radiating fin (5).
2. a kind of high temperature pump bearing box with augmentation of heat transfer structure according to claim 1, it is characterised in that the ripple The external diameter of line shape radiating fin (5) is the outer diameter D of 1.5~2.5 times of bearing housing (1)o, thickness is 0.075~0.125 times of axle Hold the outer diameter D of case (1)o
3. a kind of high temperature pump bearing box with augmentation of heat transfer structure according to claim 2, it is characterised in that the ripple The external diameter of line shape radiating fin (5) is the outer diameter D of 2 times of bearing housing (1)o, thickness is the outer diameter D of 0.1 times of bearing housing (1)o
4. a kind of high temperature pump bearing box with augmentation of heat transfer structure according to claim 2, it is characterised in that the ripple The number of line shape radiating fin (5) is 20.
5. a kind of high temperature pump bearing box with augmentation of heat transfer structure according to claim 1, it is characterised in that the ditch Groove (2) is rectangle.
6. a kind of high temperature pump bearing box with augmentation of heat transfer structure according to claim 5, it is characterised in that the ditch The depth of groove (2) is 0.075* (Do- D)~0.15 (D0- D), width is 0.1* (Do- D)~0.2 (D0- D), DoFor bearing housing (1) External diameter, D be bearing housing (1) internal diameter.
7. a kind of high temperature pump bearing box with augmentation of heat transfer structure according to claim 6, it is characterised in that the ditch The depth of groove (2) is 0.075* (Do- D), width is 0.1* (Do- D), the depth-to-width ratio of the groove (2) is 0.75.
8. a kind of high temperature pump bearing box with augmentation of heat transfer structure according to claim 1, it is characterised in that the ripple Line shape radiating fin is integrated design with bearing housing (1).
CN201710609275.9A 2017-07-25 2017-07-25 A kind of high temperature pump bearing box with augmentation of heat transfer structure Pending CN107289029A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710609275.9A CN107289029A (en) 2017-07-25 2017-07-25 A kind of high temperature pump bearing box with augmentation of heat transfer structure

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Application Number Priority Date Filing Date Title
CN201710609275.9A CN107289029A (en) 2017-07-25 2017-07-25 A kind of high temperature pump bearing box with augmentation of heat transfer structure

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CN107289029A true CN107289029A (en) 2017-10-24

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201321989Y (en) * 2008-12-12 2009-10-07 上海凯泉泵业(集团)有限公司 High pressure resistant, wearable and corrosion resistant high temperature pump
CN201747622U (en) * 2010-07-27 2011-02-16 上海东方泵业(集团)有限公司 High-temperature pump
US20110280714A1 (en) * 2007-05-04 2011-11-17 Envirotech Pumpsystems, Inc. Two-Piece Bearing Housing For A Centrifugal Pump
CN202381549U (en) * 2011-12-24 2012-08-15 河南科技大学 Bearing pedestal used for heat dissipation of rolling bearing
CN102865251A (en) * 2012-09-10 2013-01-09 江苏大学 Suspension body of hot water circulating pump provided with groove structure on inner wall surface
CN204628324U (en) * 2015-03-15 2015-09-09 武安市永盛机械泵业有限公司 A kind of bearing support of high temperature coal-tar pump
CN204704142U (en) * 2015-03-26 2015-10-14 大连罗斯泵业有限公司 A kind of high temperature pump axial displacement compensator

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110280714A1 (en) * 2007-05-04 2011-11-17 Envirotech Pumpsystems, Inc. Two-Piece Bearing Housing For A Centrifugal Pump
CN201321989Y (en) * 2008-12-12 2009-10-07 上海凯泉泵业(集团)有限公司 High pressure resistant, wearable and corrosion resistant high temperature pump
CN201747622U (en) * 2010-07-27 2011-02-16 上海东方泵业(集团)有限公司 High-temperature pump
CN202381549U (en) * 2011-12-24 2012-08-15 河南科技大学 Bearing pedestal used for heat dissipation of rolling bearing
CN102865251A (en) * 2012-09-10 2013-01-09 江苏大学 Suspension body of hot water circulating pump provided with groove structure on inner wall surface
CN204628324U (en) * 2015-03-15 2015-09-09 武安市永盛机械泵业有限公司 A kind of bearing support of high temperature coal-tar pump
CN204704142U (en) * 2015-03-26 2015-10-14 大连罗斯泵业有限公司 A kind of high temperature pump axial displacement compensator

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
朱鹣等: "沟槽深宽比对泰勒涡流影响的研究", 《工程热物理学报》 *

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Application publication date: 20171024

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