CN2367801Y - Jet type self-suction centrifugal pump - Google Patents
Jet type self-suction centrifugal pump Download PDFInfo
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- CN2367801Y CN2367801Y CN 99200350 CN99200350U CN2367801Y CN 2367801 Y CN2367801 Y CN 2367801Y CN 99200350 CN99200350 CN 99200350 CN 99200350 U CN99200350 U CN 99200350U CN 2367801 Y CN2367801 Y CN 2367801Y
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Abstract
The utility model relates to a pump, particularly a jet flow type self suction centrifugal pump which is punched, pressed, and welded by metal plates. The utility model is composed of an inlet pipe, an outlet pipe, a rear cover, a pump casing, an impeller, a blade guiding body, and a jet flow device. The utility model is characterized in that the pump body is in a cylinder shape and is punched and pressed by metal plates; one end surface of the pump casing is a spherical surface, and the other end of the pump casing is provided with a flange connected with a motor. The utility model has simple structure, better strength, and beautiful appearance. Compared with cast pumps, the utility model has the advantages that the weight of the utility model is reduced by 75%; the efficiency of the utility model is increased by 5% to 7%; the utility model saves large quantity of materials and energy; the cost of the utility model is reduced by one half; the utility model reduces environment pollution.
Description
The utility model relates to a kind of pump, particularly a kind of jet-type self-priming centrifugal pump with the sheet metal it by punch and weld.
Pump is the universal machine product of the big wide application of a kind of demand, is widely used in every field, and the manufacturing usual method of pump is a casting process, and casting process is a kind of power consumption height, and consumptive material is many, and labor intensity is big, environment is had the technology of pollution; For some parts of low-capacity pump, as impeller, its exit width is very narrow, limits and can't cast because of technology.Therefore, begin to develop and utilize sheet metal to make pump by impact briquetting and the method that is welded to connect, more existing punching press pumps have only its wheel member to adopt the simple punching press of sheet metal, the projection welding moulding, and pump case still adopts casting, the shortcoming of original casting technique still can't fundamentally overcome, and still has difficulty in process, and technical performance is poor.
In view of this, how to make whole parts of centrifugal pump all can adopt it by punch and weld, reduce environmental pollution, alleviate working strength, improve labour productive forces' level, improvement by structure increases the intensity and the technical performance of the pump housing, increases substantially the operational efficiency of pump, and the utility model grinds wound motivation place just.
The utility model designer relies on the practical experience of being engaged in development, production, processing and the fields such as water pump design, manufacturing of all kinds of stainless steel stamping products for many years, on the basis of studying repeatedly, prove, testing, do a brand-new design and constitute, get generation of the present utility model eventually.
At the deficiencies in the prior art, the purpose of this utility model provides the pump of a kind of whole employing punching press and welding procedure manufacturing, its have rational in infrastructure, intensity good, the characteristics reliable, that efficient is high, pump case have enough strength and stiffness to bear the jet-type self-priming centrifugal pump of pipeline active force and internal pressure.
Working principle of the present utility model is: liquid enters impeller from liquid jetting device during pump startup, the liquid that flows out from impeller enters pump case, the inlet of nozzle and pump case UNICOM, a liquid part flows out from outer pipe in the pump case, another part reenters liquid jetting device from nozzle, form negative pressure drive entrance pipe liquid and together enter impeller again, so recycle.
The purpose of this utility model can realize like this, the utility model is made of inlet tube, outer pipe, bonnet, pump case, impeller, diffuser, liquid jetting device, it is characterized in that pump case is the rammed cylindrical shape of a sheet metal, pump case one end face is a sphere, the other end is provided with and the motor flange connecting, simple in structure, intensity is good, beautiful shape, the fluid pipe of liquid jetting device is the cone that a sectional area increases gradually, the liquid jetting device end face is connected with nozzle, and the rib that is symmetrically distributed more than two is arranged on the liquid jetting device, is used to strengthen the intensity of liquid jetting device; Area between nozzle and the liquid jetting device inlet is narrow and small, forms high negative during pump operation herein, thereby outside liquid is sucked and form jet voluntarily.
The utlity model has following technical characterstic:
1, pump case adopts the punching press welding to form, technology is single, the metallic sheet material of 0.5-5 millimeter is manufactured whole parts of centrifugal pump, and than the casting pump, weight is equivalent to 1/4 of similar casting pump, efficient is than the high 5-7% of similar pump, cost is equivalent to 1/2 of similar pump, energy-saving material-saving, manufacturing efficiency height, avoid environmental pollution, reduce labor intensity; Sheet metal can be selected stainless steel materials for use, and is corrosion-resistant, the life-span is long.
2, overall construction design is ingenious, the structural type of impeller has solved specific speed Ns and has been lower than a difficult problem of 30, stamping forming pump case thickness is even, be provided with deflector in the pump case, the liquid stream through the impeller pressurization is rationally dredged, satisfy the smooth needs of fluid, fitting surface between impeller eye, the liquid jetting device, the sealing of employing sealing opening ring, the sealing surface gap of static and dynamic sealing is less than 0.5 millimeter, good sealing effect.
3, impeller and ejector device, compact structure are housed in the pump case; Utilize the liquid of pump case internal reservoir, during the pump starting, because the effect of nozzle in inlet's formation high negative of pump, thereby in the liquid suction pump, runs well pump; After entering pump case from the liquid of impeller pressurization, some directly enters outer pipe, flows into outlet conduit, and another part enters liquid jetting device from nozzle, enters impeller again, circulates.
Further specify the utility model below in conjunction with accompanying drawing.
Fig. 1 is an organigram of the present utility model.
Fig. 2 is a pump case organigram of the present utility model.
Fig. 3 is a liquid jetting device organigram of the present utility model.
Fig. 4 is a diffuser schematic representation of the present utility model.
Fig. 5 is an impeller construction schematic representation of the present utility model.
Referring to accompanying drawing, the utility model is by inlet tube 2, outer pipe 9, bonnet 12, pump case 1, impeller 11, diffuser 10, liquid jetting device 4 constitutes, it is characterized in that pump case 1 is the rammed tubular of a sheet metal, one end face of pump case 1 is a sphere, the other end is provided with and motor 14 flange connecting 25, simple in structure, intensity is good, beautiful shape, the taper fluid pipe 31 that has a nozzle 21 that diminishes gradually at liquid flow path direction sectional area and a sectional area to increase gradually in the liquid jetting device 4, the outlet port of the inlet of fluid pipe 31 and nozzle 21 is apart from weak point, and nozzle forms high negative herein during pump operation, thereby the liquid of inlet pipeline is sucked and form jet voluntarily.Nozzle 21 diminishes gradually at liquid flow path direction sectional area, and liquid flow velocity in nozzle raises gradually, and flow velocity is the highest at the spout place, and static pressure is minimum, thereby the inlet pipeline fluid is sucked.The support 33 that evenly disposes more than two is being arranged on the nozzle 21, be used for the location; Nozzle stomidium 34 is connected with pump case inlet hole 26, equally distributed rib 32 more than two is arranged on the liquid jetting device 4, be used to strengthen the intensity of liquid jetting device, the inlet/outlet two ends of liquid jetting device 4 have equally distributed support 33 and support 35 more than two respectively, and support 35 is used to support diffuser 10.
The pump housing is provided with the outer pipe 9 of a garden shape and the inlet tube 2 of a garden shape, and outer pipe 9 can be connected by multiple modes such as screw thread, flanges with outlet conduit, and inlet tube 2 also can be connected by various ways such as screw thread, flanges with inlet pipeline.
Liquid jetting device and impeller inlet place are provided with sealing opening ring 20, form a labyrinth seal with impeller 11, and the sealing surface gap of static and dynamic sealing is less than 0.5 millimeter, can effectively reduce the backflow of impeller, guarantees the Operational Limits of water pump, improves the efficient of pump.
Pump case is provided with flanged surface 25, is connected with motor 14, and inlet hole 26 is connected with nozzle 21 and inlet tube 2, exit orifice 27 is connected with outer pipe 9, and hole 24,28 is equiped with down bolt 22 and last bolt 6 respectively, and outer pipe 9 is vertical with motor shaft 18, simple in structure, practical reliable.
Be provided with diffuser 10 in the pump case, by several equally distributed guide vanes 41, can steadily enter pump case on the diffuser, improve the efficient of pump rationally dredging through the liquid stream of impeller 11 pressurizations.Also have the location guide vane 42 more than 1 on the diffuser, play guide functions, dowel 43 is used for the location of diffuser and liquid jetting device 4.
Impeller is made up of the spiral line type blade 63 of front shroud of impeller 62, back shroud of impeller 61 and middle clamping thereof, and impeller is fixed on the motor shaft 18 by impeller nut 19.
Adopt 3 sealings of O type circle between pump case import and liquid jetting device, good sealing effect.
The pump housing is provided with bolt 6, matrix pad 7 and O RunddichtringO 8, can be used for the pump prestart and intakes inward.
The pump housing is provided with down bolt 22, can be used for draining after the termination of pumping.
Mechanical seal 16 sealings are adopted in axial seal between bonnet 12 and the motor shaft 18.
Pump case is provided with and motor 14 flange connecting, directly is fixed on the motor by double-screw bolt 17, and motor 14 adopts reinforced seal 15 sealings with motor shaft 18 sealings, promptly motor is carried out duplicate protection, guarantees that motor normally moves.
In sum, the utility model provides a kind of feasible process, and effect is obvious, and is rational in infrastructure, the jet-type self-priming centrifugal pump of the it by punch and weld of function admirable.Obviously the utility model is a kind of novelty, progress and the new design with practicability; Some inner member of the present utility model as liquid jetting device, impeller, diffuser, can adopt technology manufacturings such as plastics die casting and punching press welding as required.The above is this novel specific embodiment and the know-why of being used, do not departing from the equivalence change that principle of the present utility model is done, when the function that it produced does not exceed spiritual that specification and accompanying drawing contain yet, all should be in scope of the present utility model, explanation hereby.
Claims (9)
1, a kind of jet-type self-priming centrifugal pump, constitute by inlet tube (2), outer pipe (9), bonnet (12), pump case (1), impeller (11), diffuser (10), liquid jetting device (4), it is characterized in that pump case (1) is the rammed tubular of a sheet metal, one end face of pump case (1) is a sphere, and the other end is provided with and motor (14) flange connecting (25).
2, jet-type self-priming centrifugal pump according to claim 1, it is characterized in that the pump housing is provided with the inlet tube (2) of an outer pipe of a garden shape (9) and a garden shape, outer pipe (9) can be connected by screw thread or flange mode with outlet conduit, inlet tube (2) and inlet pipeline also can screw thread or form of flanges be connected.
3, jet-type self-priming centrifugal pump according to claim 1, the taper fluid pipe (31) that it is characterized in that having in the liquid jetting device (4) nozzle (21) that diminishes gradually at liquid flow path direction sectional area and a sectional area to increase gradually, the outlet port of the inlet of fluid pipe (31) and nozzle (21) is apart from weak point, equally distributed rib (32) more than two is arranged on the liquid jetting device (4), and the inlet/outlet two ends of liquid jetting device (4) have equally distributed support (33) and support (35) more than two respectively.
4, jet-type self-priming centrifugal pump according to claim 1 is characterized in that liquid jetting device (4) and impeller (11) front end cooperation place be equipped with sealing opening ring (20), forms a labyrinth seal with impeller (11).
5, jet-type self-priming centrifugal pump according to claim 1, it is characterized in that being provided with in the pump case diffuser (10), on the diffuser by a plurality of equally distributed guide vanes (41), also have the location guide vane (42) more than 1 on the diffuser, be provided with the dowel (43) that is used for diffuser and liquid jetting device (4) location.
6, jet-type self-priming centrifugal pump according to claim 1, it is characterized in that impeller (11) is made up of the spiral line type blade (63) of front shroud of impeller (62), back shroud of impeller (61) and middle clamping thereof, impeller is fixed on the motor shaft (18) by impeller nut (19).
7, jet-type self-priming centrifugal pump according to claim 1 is characterized in that adopting between pump case import and liquid jetting device (4) O type circle (3) sealing.
8, jet-type self-priming centrifugal pump according to claim 2 is characterized in that the pump housing is provided with bolt (6), following bolt (22).
9, jet-type self-priming centrifugal pump according to claim 1 is characterized in that mechanical seal (16) sealing is adopted in the axial seal between bonnet (12) and the motor shaft (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99200350 CN2367801Y (en) | 1999-01-14 | 1999-01-14 | Jet type self-suction centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99200350 CN2367801Y (en) | 1999-01-14 | 1999-01-14 | Jet type self-suction centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2367801Y true CN2367801Y (en) | 2000-03-08 |
Family
ID=33996357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99200350 Expired - Lifetime CN2367801Y (en) | 1999-01-14 | 1999-01-14 | Jet type self-suction centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2367801Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570195A (en) * | 2015-12-14 | 2016-05-11 | 江苏大学 | Design method of front pump cavity structure capable of reducing axial force of centrifugal pump |
| CN106468256A (en) * | 2015-08-22 | 2017-03-01 | 林文瀚 | The jet and centrifugal pump of sheet stamping and welding fabrication |
| CN107204694A (en) * | 2016-12-26 | 2017-09-26 | 苏州沃达园林机械有限公司 | Hua Yuanbeng uses DC motor structure |
| CN107740770A (en) * | 2017-11-15 | 2018-02-27 | 上海中韩杜科泵业制造有限公司 | A kind of mini-type punching is molded self priming pump |
-
1999
- 1999-01-14 CN CN 99200350 patent/CN2367801Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106468256A (en) * | 2015-08-22 | 2017-03-01 | 林文瀚 | The jet and centrifugal pump of sheet stamping and welding fabrication |
| CN106468256B (en) * | 2015-08-22 | 2019-05-28 | 林文瀚 | The jet and centrifugal of sheet stamping and welding fabrication pump |
| CN105570195A (en) * | 2015-12-14 | 2016-05-11 | 江苏大学 | Design method of front pump cavity structure capable of reducing axial force of centrifugal pump |
| CN105570195B (en) * | 2015-12-14 | 2018-06-26 | 江苏大学 | A kind of design method for reducing centrifugal pump axial force front pump cavity configuration |
| CN107204694A (en) * | 2016-12-26 | 2017-09-26 | 苏州沃达园林机械有限公司 | Hua Yuanbeng uses DC motor structure |
| CN107740770A (en) * | 2017-11-15 | 2018-02-27 | 上海中韩杜科泵业制造有限公司 | A kind of mini-type punching is molded self priming pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C32 | Full or partial invalidation of patent right | ||
| IP01 | Partial invalidation of patent right |
Decision date of declaring invalidation: 20030421 Decision number of declaring invalidation: 5050 Case number: W54376 Conclusion of examination: review Announcement No. 99200350.4 utility model claims 1-2, 6-9 invalid, effectively maintain the right based on patent claims on 5. Decision date: 20030421 Denomination of utility model: Jet type self-suction centrifugal pump Granted publication date: 20000308 Int.cl.7: F04D1/00 Patentee: Yangjiang xinyuehua Stainless Steel Pump Co Ltd Review decision number: 5050 |
|
| C32 | Full or partial invalidation of patent right | ||
| IP01 | Partial invalidation of patent right |
Decision date of declaring invalidation: 20050815 Decision number of declaring invalidation: 7421 Case number: 5W05760 Conclusion of examination: Without the conclusion of the 6. examination, the claim No. 3 and 4 of the patent for utility model 99200350.4 shall be invalid, and the patent shall continue to be valid on the basis of the claim 5 of the patent. Decision date: 20050815 Denomination of utility model: Jet type self-suction centrifugal pump Granted publication date: 20030308 Int.cl.7: F04D1/00 Patentee: Xinyuehua Stainless Steel Pump Co., Ltd., Yangjiang City Review decision number: 7421 |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |