CN2237133Y - Direct connection single stage pump - Google Patents
Direct connection single stage pump Download PDFInfo
- Publication number
- CN2237133Y CN2237133Y CN 95204369 CN95204369U CN2237133Y CN 2237133 Y CN2237133 Y CN 2237133Y CN 95204369 CN95204369 CN 95204369 CN 95204369 U CN95204369 U CN 95204369U CN 2237133 Y CN2237133 Y CN 2237133Y
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- Prior art keywords
- pump
- motor
- shaft
- stage
- cover
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- Expired - Fee Related
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Abstract
The utility model relates to a direct connection single stage pump, belonging to a centrifugal pump type. The utility model is composed of a pump shaft, a pump body, a pump cover, an impeller, a pump base, etc. The utility model is characterized in that the rib of the lower part of the pump body is connected with the oblong pump base. The pump shaft and the shaft of a motor are the same shaft. The end closure of the motor is connected to the pump cover directly. Multilayer adjusting seal washers are clamped between the pump cover and the pump body, and are connected by adjusting and fastening screws. Compared with the existing pump with the same performance, the total number of the details, the volume, and the weight of the pump are respectively reduced more than a half, and the efficiency of the pump is improved from 2% to 5%. The utility model has the advantages of easy manufacture and installation, and convenient use, maintenance and adjustment. The utility model can be widely used for conveying the clear water and other liquid media similar to the water.
Description
This straight connection type single-stage pump belongs to the centrifugal pump class.
Single-stage pumps such as the BA type that prior art provided, the IS type part that comes with some shortcomings: adopt the radial seal ring, seal clearance is washed away continuous increase because of wearing and tearing, can not adjust, and pump efficiency is constantly reduced, cause the pump life-span short, efficient is low, big energy-consuming; Impeller adopts parts such as key, floor clip, impeller specialized nut to install and fix, and impeller nut high speed rotating in Pump Suction Nozzle influences pump performance, and simultaneously because of the keyway bad sealing, the neither convenience of maintenance is installed and used in the air inlet of easily leaking; The pump housing is associated with suspension, support, complex structure, and volume is big; Pump shaft and motor shaft connect with coupling, and pump shaft and motor shaft center height are inconsistent, need to adjust with the chassis, cause the chassis mounting plane of two different heights to occur, bad processing, and difficult the installation, floor space is big.
The object of the present invention is to provide a kind of simple in structure, volume is little, in light weight, floor space is little, pump efficiency height, the straight connection type single-stage pump of long service life.
The technical characteristics of this straight connection type single-stage pump is: the motor pump shaft is an axis, and an end is a motor shaft, and the other end is a pump shaft; Establish the adjustment sealing gasket between the pump cover and the pump housing, connect with adjusting fastening screw trip bolt; The cross section is inlayed at pump housing suction port place
V-shaped ring makes it make in specified gap the liquid that leaks out spray to critical pressure region in the suction eye in sealing; Impeller is connected radial location with blind screwhole and unthreaded hole with pump shaft head left hand thread, improves the pump hydraulic performance.
The technical solution of this straight connection type single-stage pump 1. straight connection type single-stage pump structural representations in conjunction with the accompanying drawings is described further.This straight connection type single-stage pump structure is as Fig. 1. shown in, it is by the pump housing 9 its underpart muscle connection rectangular pump seats 1, and inlay and have the conical surface 4 cross sections and be at pump housing suction port place
V-shaped ring 5, the conical surface 4 is got 30 ° with the shaft axis angle--and 40 °, flange motor 18, by electric motor end cap 16 usefulness motor bearingss 17 support motor pump shafts 12, its other end is equipped with the impeller 6 of blind screwhole and unthreaded hole, and impeller inlet also is that the conical surface 4 cross sections are
Shape, the sealing surface that matches with seal ring 5, dress axle sleeve 13 on the axle 12, stuffing box packing 7 usefulness glands 14 are arranged outward, densification is fastened in the step hole of pump cover 10, clamp multilayer between the pump cover 10 and the pump housing 9 and adjust sealing gasket 3, with regulating fastening screw trip bolt 11, divide two groups, one group has three adjusting screw to be distributed on the flange plate of pump cover 10, with it scyewed joint, the adjusting screw head touches the pump housing 9 sides, another group has a plurality of fastening screw trip bolts, is distributed between the adjusting screw, and through hole and the pump housing 9 scyewed joint that can pass on the pump cover 10 are fastening.Be provided with the pressure compensation opening 8 between UNICOM pump chamber zone of high pressure and the stuffing box packing in the pump cover 10, establish water retaining ring 15 on the motor pump shaft 12, drain plug 2 is established in the pump chamber bottom of the pump housing 9, and motor 18 is anchored on the pump cover 10 by the electric motor end cap of increasing, the side band is installed slotted hole 16 to be formed.
The industry operation and the adjustment of this straight connection type single-stage pump:
The industry operation of this single-stage pump is with existing one-stage centrifugal clean waterpump.What need stress is that impeller 6 is with the conical surface 4 cross sections
The adjusting of seal clearance between the V-shaped ring 5, impeller 6 usefulness blind screwholes and unthreaded hole location are anchored on motor pump shaft 12 ends and use the contrary impeller sense of rotation of left hand thread, so can not become flexible, news crack when impeller and seal ring, through long-term industry operation, wash away continuous increase because of wearing and tearing, pump efficiency decreases.When needing to regulate its gap, earlier all fastening screw trip bolts 11 are unclamped, again three adjusting screw, 11 back of the body caps are unclamped to rotate and regulate, pump cover 10 is pushed up from the pump housing 9 one segment distances, then impeller 6 is with motor pump shaft 12 and be fastened on one electric motor end cap 16, but pump cover 10 one withdraw from a segment distance, when pulling down thickness that multilayer adjusts sealing gasket for the gap regulated, again adjusting screw is turned round certain position, 3 can determine the pump cover position, tighten its back of the body cap, turn round firm fastening screw trip bolt then one by one, pump cover 10 grades just are fastened on the pump housing, this moment, impeller 6, made between impeller and the seal ring 5 near seal ring 5 axially
The shape sealing surface returns to desired location, finishes gap adjustment one time.
This straight connection type single-stage pump has been compared following advantage with BA, IS type single-stage pump that prior art is provided:
1. the single stage centrifugal pump that prior art provided is radial seal, move with industry, seal clearance is washed away continuous increase because of wearing and tearing, just loss of seal effect gradually, sealed liquid, with vertical pump shaft direction, before leaking into suction eye, hinder and inhale journey, influence the efficient of pump, in this case, remove termination of pumping and change seal ring or impeller, have no other way, seal ring of the prior art according to statistics uses at most and will change in 1 year, and the axial clearance of new pump can only be transferred to 0.1--0.25mm, experimental results show that the every increase of seal clearance 0.1mm, pump efficiency just reduces about 2%, illustrates that the leakage loss of seal clearance is very big to the pump efficiency influence, so regulation in existing such single-stage pump product descritption " when seal wears should be changed Xinmi City's seal ring during to 0.5mm ", and this single-stage pump employing cross section is
V-shaped ring, existing radial seal, also has the axial seal effect, seal ring can reach more than 5 years working life, and the liquid that comes out in the internal leakage of sealing surface specified gap, spray to critical pressure region in the suction eye by direction initialization, this is of value to the vacuum height that sucts that increases pump, the axial seal adjustable gaps is whole below 0.03mm, make pump remain at high-efficiency operation under the optimum condition, every performance basic parameter meets the IS02858 world fully, the domestic standard requirement, this pump is higher by about 2% than the pump efficiency of the same race that prior art provides, and on average improves more than 7% in industry pump efficiency in service;
2. the seal clearance regulation structure is simple, and is easy to operate, can make pump keep the high-performance operation;
3. this straight connection type single-stage pump, impeller is connected with electric-motor pump spindle nose left hand thread, the unthreaded hole radial location, contrary impeller sense of rotation is fastening, can not become flexible, and the location accurately, good hydraulic performance is arranged, install and fix without parts such as key, floor clip, impeller specialized nuts, avoid specialized nut, floor clip high speed rotating in Pump Suction Nozzle to influence pump performance and because of leaking of causing of keyway bad sealing, air inlet etc.;
4. this straight connection type single-stage pump saves suspension, support, bearing etc. than the pump of existing performance of the same race, and total number of parts, volume, weight all reduce over halfly in addition, and pump efficiency improves 2--5%;
This single-stage pump not phase IS pump need and motor is installed on the chassis of heaviness, can be directly installed on the ground and use;
The technical economic benefit of this straight connection type single-stage pump has been to realize the purpose of foregoing invention, is expected to replace single-stage pumps such as BA type that prior art provides, IS type, can be widely used in clear water and other liquid mediums that is similar to water are carried.
Embodiment:
But this single-stage pump called after ISE type straight connection type single-stage pump is existing to be example with ISE80-65-125 and to be compared as follows table with IS80-65-125A
This ISE type pump and existing like product IS type pump performance contrast table
| Model | Rotation speed n r/min | Flow Q | Lift h m | Power N (KW) | Efficient % | Necessary NPSH (NPSH) r | External dimension length and width height (mm) | The gross weight kilogram | ||
| m 3/h | l/s | Air horsepower | Necessary electromotor | |||||||
| Do not contain motor | ||||||||||
| This type pump ISE80-65-125 | 2900 | 32.4 45.0 52.2 | 9.0 12.5 14.5 | 21.5 18.8 15.6 | 2.5 2.88 2.96 | 4 | 76 80 75 | 3.0 | Long, 380 is wide, 280 height, 330 | 56 |
| IS80-65-125 | 2900 | 28.7 47.9 52.3 | 7.98 13.9 12.9 | 20.6 18.3 16.5 | 2.56 3.27 3.56 | 5.5 | 63 73 72 | 3.0 | Long, 960 is wide, 490 height, 400 | 138 |
Axial seal gap adjustment amount (wear extent) is greater than 5mm
Claims (4)
1. straight connection type single-stage pump, it inlays seal ring 5 by the pump housing 9 at pump housing suction port place, electric motor end cap 16 usefulness motor bearingss 17 support motor pump shafts 12, connect motor 18 and pump cover 10, suit axle sleeve 13 on the axle 12, stuffing box packing 7 usefulness glands 14 are arranged outward, densification is fastened in the step hole of pump cover 10, be provided with the pressure compensation opening 8 between UNICOM pump chamber zone of high pressure and the stuffing box packing in the pump cover 10, establish water retaining ring 15 on the motor pump shaft 12, pump shaft end screw thread dress impeller 6, the pump chamber bottom is established drain plug 2 and is formed, it is characterized in that, the pump housing 9 its underpart muscle connection rectangular pump seats 1, motor pump shaft 12 is axises, an end is a motor shaft, the other end is a pump shaft, and increasing with both sides has the electric motor end cap 16 that slotted hole is installed directly to connect with pump cover 10.
2. by the described straight connection type single-stage pump of claim 1., it is characterized in that clamping between the said pump cover 10 and the pump housing 9 multilayer and adjust sealing gasket 3, usefulness is adjusted, fastening screw trip bolt 11 is fastening.
3. by the described straight connection type single-stage pump of claim 1., it is characterized in that the said pump housing 9 is inlayed at the suction port place and have the conical surface 4 cross sections and be
The seal ring 5 of shape.
4. by the described straight connection type single-stage pump of claim 1., it is characterized in that said motor pump shaft 12 pump shaft ends are equipped with the impeller 6 of blind screwhole and unthreaded hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95204369 CN2237133Y (en) | 1995-03-18 | 1995-03-18 | Direct connection single stage pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95204369 CN2237133Y (en) | 1995-03-18 | 1995-03-18 | Direct connection single stage pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2237133Y true CN2237133Y (en) | 1996-10-09 |
Family
ID=33856905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95204369 Expired - Fee Related CN2237133Y (en) | 1995-03-18 | 1995-03-18 | Direct connection single stage pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2237133Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102444613A (en) * | 2011-12-22 | 2012-05-09 | 镇江正汉泵业有限公司 | Looseness-preventing mechanism in reversion of pump impeller |
| CN102588321A (en) * | 2012-02-23 | 2012-07-18 | 肖琼 | Wear-resisting pump body and pump cover |
| CN102878088A (en) * | 2012-09-18 | 2013-01-16 | 安徽天富泵阀有限公司 | Direct connection type high temperature oil pump |
| CN102062105B (en) * | 2009-11-13 | 2014-01-08 | 浙江三花股份有限公司 | Drainage pump and assembling method thereof, impeller device and heat exchange device |
| CN102734223B (en) * | 2012-06-20 | 2014-05-07 | 江苏金鹰流体机械有限公司 | Process pump for petrochemical industry |
| CN104533807A (en) * | 2014-12-17 | 2015-04-22 | 哈尔滨电气动力装备有限公司 | Auxiliary impeller hydraulic model testing device |
| CN108678974A (en) * | 2018-07-26 | 2018-10-19 | 江苏涞森环保设备有限公司 | A kind of various flow air blower |
| CN108825550A (en) * | 2018-08-30 | 2018-11-16 | 湖南机油泵股份有限公司 | A kind of impeller and water pump of the fast quick-detach of energy |
| CN109715954A (en) * | 2016-09-15 | 2019-05-03 | 西门子股份公司 | Single axle turbo-compressor |
-
1995
- 1995-03-18 CN CN 95204369 patent/CN2237133Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102062105B (en) * | 2009-11-13 | 2014-01-08 | 浙江三花股份有限公司 | Drainage pump and assembling method thereof, impeller device and heat exchange device |
| CN102444613A (en) * | 2011-12-22 | 2012-05-09 | 镇江正汉泵业有限公司 | Looseness-preventing mechanism in reversion of pump impeller |
| CN102588321A (en) * | 2012-02-23 | 2012-07-18 | 肖琼 | Wear-resisting pump body and pump cover |
| CN102734223B (en) * | 2012-06-20 | 2014-05-07 | 江苏金鹰流体机械有限公司 | Process pump for petrochemical industry |
| CN102878088A (en) * | 2012-09-18 | 2013-01-16 | 安徽天富泵阀有限公司 | Direct connection type high temperature oil pump |
| CN104533807A (en) * | 2014-12-17 | 2015-04-22 | 哈尔滨电气动力装备有限公司 | Auxiliary impeller hydraulic model testing device |
| CN109715954A (en) * | 2016-09-15 | 2019-05-03 | 西门子股份公司 | Single axle turbo-compressor |
| CN109715954B (en) * | 2016-09-15 | 2021-04-02 | 西门子股份公司 | Single-shaft type turbo compressor |
| US11286948B2 (en) | 2016-09-15 | 2022-03-29 | Siemens Energy Global GmbH & Co. KG | Single-shaft turbo compressor |
| CN108678974A (en) * | 2018-07-26 | 2018-10-19 | 江苏涞森环保设备有限公司 | A kind of various flow air blower |
| CN108825550A (en) * | 2018-08-30 | 2018-11-16 | 湖南机油泵股份有限公司 | A kind of impeller and water pump of the fast quick-detach of energy |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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 |