CN205977775U - Chemical pump is supported at modified single -stage double suction, radial subdivision, both ends - Google Patents
Chemical pump is supported at modified single -stage double suction, radial subdivision, both ends Download PDFInfo
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- CN205977775U CN205977775U CN201620487625.XU CN201620487625U CN205977775U CN 205977775 U CN205977775 U CN 205977775U CN 201620487625 U CN201620487625 U CN 201620487625U CN 205977775 U CN205977775 U CN 205977775U
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Abstract
The utility model belongs to fluid conveyor tool field, concretely relates to chemical pump is supported at modified single -stage double suction, radial subdivision, both ends is applicable to the medium of carrying various cleannesses or containing micro - granule, neutrality or highly corrosive. 1. Configuration heat dissipation muscle on the bearing box outer wall of the non - driveing end bearing body and the driveing end bearing body, the heat dissipation muscle that passes through the bearing box when the medium temperature of transport is not high can directly dispel the heat, 2. At the epitaxial epaxial installation fan of bearing body, the fan can rotate along with the axle to the cooling bearing body, pump cover and machine seal, prevent medium heat transfer to hold to the bearing, play indirect cooling bearing's effect, 3. The oil bath position on the bearing box disposes cooling pipe connector hole and connects the cooling tube, and the external connecting terminal in cooling pipe connector hole connects cooling circulation system, the through -flow coolant who moves in the cooling tube, but direct cooling lubricating oil. The utility model discloses the structure is more reasonable compact, and axial length is less, and the rigidity of rotor improves, and the operation reliability is higher, and the commonality is stronger.
Description
Technical field
This utility model belongs to fluid conveying machine technical field and in particular to a kind of improved single-stage double-suction, radially cuing open
Point, two ends support chemical pump it is adaptable to oil plant Crude Oil Transportation, petrochemical industry, natural gas, Coal Chemical Industry, synthetic fuel, ocean put down
The fields such as platform, petroleum pipeline, high-pressure feed water, power plant, the various cleaning of conveying or containing micro granule, neutral or have severe corrosive
Medium, including acidic liquid, propane, lighter hydrocarbons, high temperature corrosion medium, crude oil etc..
Background technology
Traditional at present single-stage double-suction, radial direction subdivision, two ends support centrifugal pump to be primarily present problems with：
1. bearing body only has one kind indirectly type of cooling, and that is, the cooling intracavity on bearing gland leads to cooling water cooling, this
The type of cooling can not directly cool down the lubricating oil of grease chamber, and cooling effect is poor, there is bearing temperature height, and operating is insecure to ask
Topic.If in the area difficult with water, necessarily increasing production cost with cooling water.
2. bearing gland and pump cover have cooling chamber to lead to axial dimension to lengthen, and rotor part is flexible to be increased, operating reliability
Reduce.And mostly this kind of pump is conveying high-temperature medium（More than 300 DEG C）If the coolant temperature that pump cover cools down intracavity compares
Low, then pumped (conveying) medium and the big pump cover of the cooling medium temperature difference easily cracking phenomenon, pump group reliability reduces, if cooling intracavity
Coolant temperature higher, then pumped (conveying) medium and the cooling medium temperature difference are little, and cooling effect is inconspicuous.With scientific and technological progress, machine
The range of application of tool sealing constantly expands, and can reduce the temperature of machine sealing chamber it is ensured that in worst hot case in the presence of heat exchanger
Lower sealing safe and reliable, therefore can cancel the cooling chamber of conventional pump lid.
3. the corresponding only one of which impeller of pump-type is it is impossible to meet the low net positive suction head of client or high net positive suction head is efficient
The requirement of different operating modes, part universality is not high, increases management cost.
Therefore, for three above problem, need to improve on the basis of original pump configuration.
Content of the invention
The purpose of this utility model is to provide a kind of improved single-stage double-suction, radial direction subdivision, two ends to support chemical pump, its knot
Structure is more rationally compact, and operating reliability is higher, and versatility is higher.
Above-mentioned purpose of the present utility model is achieved through the following technical solutions.
1. radiating ribs are configured on the bearing box outer wall of non-driven-end bearing body and drive end bearing body, when the medium of conveying
Can directly be radiated by the radiating ribs of bearing housing when temperature is high；2. fan is installed on the axle of bearing body extension, fan can be with
Axle rotates together, thus cooling bearing body, pump cover and machine envelope, stops medium heat from being transferred to bearing end, plays indirect cooling shaft
The effect held；3. the oil sump position configuration cooling tube on bearing housing connects hole and connects cooling tube, and cooling tube connects the external connection end in hole even
Connect cooling recirculation system, through-flow dynamic cooling medium in cooling tube, can direct cutting oil.
Splash ring, the configuration of oil sump position and splash ring liquid level are installed on the axle of the angular contact ball bearing position in bearing housing
The permanent position lubricating cup of coupling；Connect hole in the setting oil foglubrication of bearing upper box part, configure fog-spray nozzle.
By above-mentioned improvement, cancel bearing gland cooling chamber and pump cover cooling chamber, reduce axial length, by bearing gland
It is prepared as solid with pump cover, result rotor part is flexible to be reduced, and rigidity increases operating reliability and increases, and cancels pump cover cooling chamber
The cooling of machine sealing chamber is ensured by Mechanical Seal Auxiliary System heat exchanger heat exchange afterwards, is sealed by the cold pump cover of inner side fan and machine,
Medium heat is stoped to be transferred to bearing end；The impeller fitted position of same specification pump is identical, can be by changing the leaf of different performance
Wheel meets low net positive suction head or high net positive suction head efficient difference operating mode；Impeller axially position adopts subdivision ring and subdivision ring solid
Fixed set positioning, impeller pilot hole and axle adopt gap to coordinate；Wound gasket or O is adopted at the sealing of drive end and anti-drive end pump cover
Shape seal with elastometic washer.
Outside fan and inner side fan are respectively mounted on bearing housing two side axle of non-driven-end bearing body, outside fan is joined
It is equipped with fan guard；Fan inside installing on the bearing housing inner shafts of drive end bearing body.
The beneficial effects of the utility model are：Compared with supporting centrifugal pump with traditional single-stage double-suction, radial direction subdivision, two ends,
When conveying different temperatures medium, bearing can be using different methods for cooling：Air cooling, air-cooled, water-cooled.Bearing can adopt lubrication side
Formula has splash and mist of oil forced feed lubrication.Can be reached using the different bearing types of cooling and lubricating system according to different operating modes
Reliability and the optimum balance of economy.Cancel bearing gland and pump cover cooling chamber, reduce axial length, increased the firm of rotor
Property, improve rotor-support-foundation system maintainability.The impeller of removable difference waterpower group meets low net positive suction head or high cavitation
Surplus efficient difference operating mode, increased the versatility of part, reduces management cost.
Brief description
With enforcement, this utility model is further described below in conjunction with the accompanying drawings.
Fig. 1 is structural representation of the present utility model.
In figure number explanation：1st, outside fan；2nd, bearing isolator；3rd, permanent position lubricating cup；4th, fan guard；5th, anti-drive end axle
Hold body；6th, angular contact ball bearing；7th, anti-drive end oil ring set；8th, splash ring；9th, bearing gland；10th, bearing isolator；11st, interior
Crosswind is fanned；12nd, mechanical seal；13rd, anti-drive end pump cover；14th, nockbush；15th, the pump housing；16th, impeller ring；17th, pump cover
Sealing ring；18th, impeller；19th, subdivision ring；20th, subdivision ring fixed cover；21st, drive end pump cover；22nd, drive end oil ring set；23rd, angle
Contact ball bearing；24th, drive end bearing body；25th, bearing isolator；26th, axle；27th, oil foglubrication connects hole；28th, radiating ribs；29、
Cooling tube connects hole；30th, oil sump；31st, machine sealing chamber.
Specific embodiment
Referring to Fig. 1, after this utility model improves, structure is.
1. air cooling：The bearing housing outer circumference of non-driven-end bearing body 5 and drive end bearing body 24 is provided with radiating ribs 28
Radiated.
2. air-cooled：In the bearing housing of non-driven-end bearing body 5 and drive end bearing body 24, outside increased outside fan 1 He
Inner side fan 11, inside and outside crosswind fan is fixed on axle 26, rotates cooling non-driven-end bearing body 5, drive end bearing with axle
Body 24, mechanical seal 12, anti-drive end pump cover 13, drive end pump cover 21.
3. water-cooled：Increase cooling tube in oil sump 30 in the bearing housing of non-driven-end bearing body 5 and drive end bearing body 24,
Through-flow dynamic cooling medium, direct cutting oil in cooling tube.
Bearing lubrication mode of the present utility model is two kinds：1. splash.Splashed by immersing the splash ring 8 in oil sump 30
Oil lubrication, permanent position lubricating cup 3 repairing, make splash ring 8 always be in optimal spilled oil state.2. mist of oil forced feed lubrication.On bearing housing
Portion's setting oil foglubrication connects hole 27, configures fog-spray nozzle, and oil foglubrication connects the external forced feed lubrication in hole 27.
Two kinds of lubricating systems and three kinds of methods for cooling share a bearing body, and lubricating oil adopts bearing isolator 2,10,25
Sealing.Can require to adopt different coolings and lubricating system according to different operating modes and user.Guarantee axle by above-mentioned several measures
Acknowledgement of consignment turns reliable, improves the versatility of part.
Due to above-mentioned improvement of the present utility model, so traditional bearing gland cooling chamber and pump cover cooling chamber can be cancelled,
Reduce axial length, rotor part is flexible to be reduced, and rigidity increases operating reliability and increases.After cancelling each cooling chamber, machine sealing chamber
Cooling is ensured by Mechanical Seal Auxiliary System heat exchanger heat exchange.
The impeller fitted position of this utility model same specification pump difference waterpower group is identical, by changing in figure different performance
Impeller 18 meet low net positive suction head or high net positive suction head efficient difference operating modes.
Claims (3)
1. a kind of improved single-stage double-suction, radial direction subdivision, two ends support chemical pump, 1. in non-driven-end bearing body and drive end axle
Hold configuration radiating ribs on the bearing box outer wall of body；2. fan is installed on the axle of bearing body extension；3. the oil sump position on bearing housing
Put configuration cooling tube to connect hole and connect cooling tube, the external connection end that cooling tube connects hole connects cooling recirculation system；It is characterized in that：In axle
Hold installation splash ring on the axle of the angular contact ball bearing position in case, the permanent position oil that the configuration of oil sump position is mated with splash ring liquid level
Cup；Connect hole in the setting oil foglubrication of bearing upper box part, configure fog-spray nozzle.
2. the improved single-stage double-suction as described in claim 1, radial direction subdivision, two ends support chemical pump, it is characterized in that：Bearing pressure
Lid and pump cover are solid, and the impeller fitted position of same specification pump is identical, and impeller axially position adopts subdivision ring and subdivision ring
Fixed cover positions, and impeller pilot hole and axle adopt gap to coordinate；Wound gasket is adopted at the sealing of drive end and anti-drive end pump cover
Or O-shaped rubber ring sealing.
3. the improved single-stage double-suction as described in claim 2, radial direction subdivision, two ends support chemical pump, it is characterized in that：In non-drive
Outside fan and inner side fan are respectively mounted on bearing housing two side axle of moved end bearing body, outside fan arrangement has fan guard；?
Inner side fan is installed on the bearing housing inner shafts of drive end bearing body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620487625.XU CN205977775U (en) | 2016-05-26 | 2016-05-26 | Chemical pump is supported at modified single -stage double suction, radial subdivision, both ends |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620487625.XU CN205977775U (en) | 2016-05-26 | 2016-05-26 | Chemical pump is supported at modified single -stage double suction, radial subdivision, both ends |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205977775U true CN205977775U (en) | 2017-02-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620487625.XU Active CN205977775U (en) | 2016-05-26 | 2016-05-26 | Chemical pump is supported at modified single -stage double suction, radial subdivision, both ends |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205977775U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757573A (en) * | 2018-07-09 | 2018-11-06 | 安徽莱恩电泵有限公司 | A kind of new structure horizontal type middle-opened pump |
| CN114688070A (en) * | 2022-02-17 | 2022-07-01 | 上海凯泉泵业（集团）有限公司 | Air-cooled self-lubricating bearing component and method of using same |
-
2016
- 2016-05-26 CN CN201620487625.XU patent/CN205977775U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757573A (en) * | 2018-07-09 | 2018-11-06 | 安徽莱恩电泵有限公司 | A kind of new structure horizontal type middle-opened pump |
| CN114688070A (en) * | 2022-02-17 | 2022-07-01 | 上海凯泉泵业（集团）有限公司 | Air-cooled self-lubricating bearing component and method of using same |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |