CN112032057A - Centrifugal pump suitable for feeding working condition of cyclone - Google Patents
Centrifugal pump suitable for feeding working condition of cyclone Download PDFInfo
- Publication number
- CN112032057A CN112032057A CN202010739795.3A CN202010739795A CN112032057A CN 112032057 A CN112032057 A CN 112032057A CN 202010739795 A CN202010739795 A CN 202010739795A CN 112032057 A CN112032057 A CN 112032057A
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- CN
- China
- Prior art keywords
- pump
- impeller
- transmission shaft
- pump body
- centrifugal pump
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
- F04D29/0467—Spherical bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
- F04D29/049—Roller bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2205—Conventional flow pattern
- F04D29/2222—Construction and assembly
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
Abstract
The invention discloses a centrifugal pump suitable for a feeding working condition of a cyclone, which comprises a pump body and a bracket body, wherein the pump body is connected with a pump cover through a bolt, a protective plate is connected with the inside of the pump body through a bolt, a protective sleeve is tightly attached to the inner cavity of the pump body, the protective plate is mutually abutted with the protective sleeve, the right side of the pump cover is connected with an inlet short pipe through a bolt, and the upper side of the pump body is connected with an outlet short pipe through a; the invention relates to the field of centrifugal pumps, and aims to effectively control the passing capacity of solid particles and the overall volume loss of a pump.
Description
The technical field is as follows:
the invention relates to the field of centrifugal pumps, in particular to a centrifugal pump suitable for a feeding working condition of a cyclone.
Background art:
the feeding pump of the cyclone enters the cyclone after pressurizing the solid-liquid two-phase fluid, and the medium is separated and conveyed by the separation and classification principle of the cyclone. Mineral resources in Koelkan county of Luoyang city, Henan province, China are extremely rich, and most of media conveyed by the feeding pump of the cyclone have the specific gravity gamma of more than or equal to 2.25: cw is more than or equal to 50%, and granularity: 60% of 200 meshes, neutral pH, relatively sharp particle shape and hardness: 7-8.5, the service life of the currently used swirler feed pump is mostly about 25 days due to the particularity of the media conveyed by the swirler feed pump, the swirler feed pump is used as the core part of swirler feed conveying, the stable quality of the swirler feed pump is the key for directly influencing whether the whole process flow can continuously run, the wear resistance of the currently used swirler feed pump is poor, and the service life of the currently used swirler feed pump is short.
The invention content is as follows:
the invention aims to solve the technical problem of providing a centrifugal pump suitable for the feeding working condition of a cyclone.
The technical problem to be solved by the invention is realized by adopting the following technical scheme: a centrifugal pump suitable for a feeding working condition of a cyclone comprises a pump body and a bracket body, wherein the pump body is connected with a pump cover through a bolt, the pump body and the pump cover form an outer shell, a protective plate is connected with the inner part of the pump body through a bolt, a protective sleeve is tightly attached to the inner cavity of the pump body, the protective plate and the protective sleeve are mutually abutted, the protective sleeve and the protective plate are positioned through a seam allowance of the outer shell to form an inner shell, the right side of the pump cover is connected with an inlet short pipe through a bolt, and the;
the bracket body rotates and is connected with the transmission shaft, be connected through bearing part between transmission shaft and the bracket body, transmission shaft right-hand member threaded connection has the impeller, transmission shaft right-hand member fixed mounting has the auxiliary impeller, the auxiliary impeller is on the impeller left side, install the stripper ring between transmission shaft and the bracket body, install the stuffing box between transmission shaft and the auxiliary impeller, pass through bolted connection between the stuffing box and the pump body.
Preferably, the bearing component includes a tapered roller bearing and an angular contact ball bearing, and the bearing component is an axially adjustable mechanism.
Preferably, the cover plate of the impeller is of a straight design.
Preferably, back blades are designed on the front cover plate and the rear cover plate of the impeller, the back blades are arranged in length, and flow passing hubs are designed in the middle positions.
Preferably, the sheath and the guard plate are matched by adopting an inclined opening.
Preferably, the closed space formed between the inner shell and the impeller is a water pumping chamber, the water pumping chamber is designed in a semi-spiral shape, the spiral angle of the original water pumping chamber is increased, and the throat part of the water pumping chamber is specially thickened.
The working principle of the invention is as follows: fluid enters the impeller through the inlet short pipe, the impeller is driven by the transmission shaft to rotate, and under the action of centrifugal force, the liquid is thrown to the outer edge from the center of the impeller to obtain energy, and leaves the outer edge of the impeller at high speed to enter the water pressing chamber. In the water pumping chamber, the liquid is decelerated due to the gradual expansion of the flow passage, part of kinetic energy is converted into static pressure energy, and finally the static pressure energy flows into the outlet short pipe at higher pressure and is sent to a required place.
The invention has the beneficial effects that: the invention has novel structure, convenience and practicability, the pump body is fixedly connected with the bracket body, the impeller is positioned in a cavity formed by the pump body and the pump cover and is in threaded connection with the shaft end of the transmission shaft, the bearing part is in an axial adjustable structure, and when an overflowing part of the pump is worn, the clearance between the impeller and the sheath and the protecting plate can be effectively adjusted, so that the passing capacity of solid particles, the integral volume loss and the friction loss of the pump can be effectively controlled, the service life of the pump is prolonged, and the economic cost is reduced.
Description of the drawings:
in order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts;
FIG. 1 is a schematic cross-sectional view of the present invention;
FIG. 2 is a schematic view of a pumping chamber according to the present invention;
FIG. 3 is a schematic view of the overall structure of the present invention;
wherein: 1. a pump body; 2. a pump cover; 3. an impeller; 4. a sheath; 5. a guard plate; 6. a stuffing box; 7. a bracket body; 8. a secondary impeller; 9. a drive shaft; 10. disassembling the ring; 11. a bearing member; 111. a tapered roller bearing; 112. angular contact ball bearings; 12. a water pumping chamber; 13. an inlet stub; 14. an outlet short pipe.
The specific implementation mode is as follows:
in order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings.
Example 1: as shown in fig. 1, a centrifugal pump suitable for a feeding condition of a cyclone includes a pump body 1 and a bracket body 7, the pump body 1 is connected with a pump cover 2 through a bolt, the pump body 1 and the pump cover 2 form an outer shell, a guard plate 5 is connected with the inside of the pump body 1 through a bolt, a sheath 4 is closely attached to the inner cavity of the pump body 1, the guard plate 5 and the sheath 4 are abutted against each other, the sheath 4 and the guard plate 5 are positioned through a seam allowance of the outer shell to form an inner shell, the right side of the pump cover 2 is connected with an inlet short pipe 13 through a bolt, and the upper side of the;
the novel pump is characterized in that the bracket body 7 is rotatably connected with a transmission shaft 9, the transmission shaft 9 is connected with the bracket body 7 through a bearing component 11, the right end of the transmission shaft 9 is in threaded connection with an impeller 3, an auxiliary impeller 8 is fixedly mounted at the right end of the transmission shaft, the auxiliary impeller 8 is arranged on the left side of the impeller 3, a dismounting ring 10 is mounted between the transmission shaft 9 and the bracket body 7, a stuffing box 6 is mounted between the transmission shaft 9 and the auxiliary impeller 8, and the stuffing box 6 is connected with the pump body 1 through a bolt.
Fluid enters the impeller through the inlet short pipe, the impeller is driven by the transmission shaft to rotate, and under the action of centrifugal force, the liquid is thrown to the outer edge from the center of the impeller to obtain energy, and leaves the outer edge of the impeller at high speed to enter the water pressing chamber. In the water pumping chamber, the liquid is decelerated due to the gradual expansion of the flow passage, part of kinetic energy is converted into static pressure energy, and finally the static pressure energy flows into the outlet short pipe at higher pressure and is sent to a required place.
The cover plate of the impeller 3 adopts a straight design. The solid particles mostly roll or slide along the front cover plate and the rear cover plate, and the shape can effectively reduce the solid particles which are too concentrated at the front cover plate and the rear cover plate, thereby reducing the abrasion of the cover plates.
Back blades are designed on the front cover plate and the rear cover plate of the impeller 3, the back blades are arranged in length, and a flow passing hub is designed in the middle position to change the flowing form of a medium on the outer side of the impeller.
The sheath 4 and the guard plate 5 are matched through an inclined opening, so that the machining difficulty of the installation angle is reduced, the accuracy is guaranteed, the gap can be adjusted in practical application, and the sealing of an O-shaped sealing ring and the abrasion caused by leakage are assisted.
The closed space formed between the inner shell and the impeller 3 is a water pumping chamber 12, the water pumping chamber 12 adopts a semi-spiral design, the spiral angle of the original water pumping chamber is increased, and the throat part of the water pumping chamber is specially thickened. The liquid flowing out from the impeller is convenient to collect and is sent into the outlet short pipe.
Example 2: as shown in fig. 1-2, a centrifugal pump suitable for a feeding condition of a cyclone includes a pump body 1 and a bracket body 7, the pump body 1 is connected with a pump cover 2 through a bolt, the pump body 1 and the pump cover 2 form an outer shell, a guard plate 5 is connected with the inside of the pump body 1 through a bolt, a sheath 4 is closely attached to the inner cavity of the pump body 1, the guard plate 5 and the sheath 4 are abutted against each other, the sheath 4 and the guard plate 5 are positioned through a seam allowance of the outer shell to form an inner shell, the right side of the pump cover 2 is connected with an inlet short pipe 13 through a bolt, and the upper side of the;
the novel pump is characterized in that the bracket body 7 is rotatably connected with a transmission shaft 9, the transmission shaft 9 is connected with the bracket body 7 through a bearing component 11, the right end of the transmission shaft 9 is in threaded connection with an impeller 3, an auxiliary impeller 8 is fixedly mounted at the right end of the transmission shaft, the auxiliary impeller 8 is arranged on the left side of the impeller 3, a dismounting ring 10 is mounted between the transmission shaft 9 and the bracket body 7, a stuffing box 6 is mounted between the transmission shaft 9 and the auxiliary impeller 8, and the stuffing box 6 is connected with the pump body 1 through a bolt.
Fluid enters the impeller through the inlet short pipe, the impeller is driven by the transmission shaft to rotate, and under the action of centrifugal force, the liquid is thrown to the outer edge from the center of the impeller to obtain energy, and leaves the outer edge of the impeller at high speed to enter the water pressing chamber. In the water pumping chamber, the liquid is decelerated due to the gradual expansion of the flow passage, part of kinetic energy is converted into static pressure energy, and finally the static pressure energy flows into the outlet short pipe at higher pressure and is sent to a required place.
The bearing component 11 comprises a tapered roller bearing 111 and an angular contact ball bearing 112, and the bearing component 11 is an axial adjustable mechanism. The bearing component is a bearing body for bidirectional load of axial force and radial force of the whole pump, the bearing body can effectively transmit work of the driving device to the impeller, the tapered roller bearing can effectively bear the radial force of the rotor component under the working condition of heavy load, the angular contact ball bearing can limit the axial force of the rotor component under the working condition of heavy load and impact load of medium to the whole rotor, the bearing component is of an axial adjustable structure, and when the overflowing component is abraded, the bearing component can effectively adjust the gap between the impeller and the protective sleeve and the protective plate.
The cover plate of the impeller 3 adopts a straight design. The solid particles mostly roll or slide along the front cover plate and the rear cover plate, and the shape can effectively reduce the solid particles which are too concentrated at the front cover plate and the rear cover plate, thereby reducing the abrasion of the cover plates.
Back blades are designed on the front cover plate and the rear cover plate of the impeller 3, the back blades are arranged in length, and a flow passing hub is designed in the middle position to change the flowing form of a medium on the outer side of the impeller.
The sheath 4 and the guard plate 5 are matched through an inclined opening, so that the machining difficulty of the installation angle is reduced, the accuracy is guaranteed, the gap can be adjusted in practical application, and the sealing of an O-shaped sealing ring and the abrasion caused by leakage are assisted.
The closed space formed between the inner shell and the impeller 3 is a water pumping chamber 12, the water pumping chamber 12 adopts a semi-spiral design, the spiral angle of the original water pumping chamber is increased, and the throat part of the water pumping chamber is specially thickened. The liquid flowing out from the impeller is convenient to collect and is sent into the outlet short pipe.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a centrifugal pump that is suitable for swirler feed operating mode, includes pump body (1) and bracket body (7), its characterized in that: the pump body (1) is connected with a pump cover (2) through a bolt, the pump body (1) and the pump cover (2) form an outer shell, a protective plate (5) is connected with the inner part of the pump body (1) through a bolt, a protective sleeve (4) is tightly attached to the inner cavity of the pump body (1), the protective plate (5) and the protective sleeve (4) are mutually abutted, the protective sleeve (4) and the protective plate (5) are positioned through a seam allowance of the outer shell to form an inner shell, the right side of the pump cover (2) is connected with an inlet short pipe (13) through a bolt, and the upper side of the pump body (1);
bracket body (7) rotate and are connected with transmission shaft (9), be connected through bearing part (11) between transmission shaft (9) and the bracket body (7), transmission shaft (9) right-hand member threaded connection has impeller (3), transmission shaft (9) right-hand member fixed mounting has auxiliary impeller (8), auxiliary impeller (8) are on impeller (3) left side, install between transmission shaft (9) and the bracket body (7) and dismantle ring (10), install stuffing box (6) between transmission shaft (9) and auxiliary impeller (8), pass through bolted connection between stuffing box (6) and the pump body (1).
2. A centrifugal pump adapted for cyclone feed conditions according to claim 1, wherein: the bearing component (11) comprises a tapered roller bearing (111) and an angular contact ball bearing (112), and the bearing component (11) is an axial adjustable mechanism.
3. A centrifugal pump adapted for cyclone feed conditions according to claim 1, wherein: the cover plate of the impeller (3) adopts a straight design.
4. A centrifugal pump adapted for cyclone feed conditions according to claim 1, wherein: back blades are designed on the front cover plate and the rear cover plate of the impeller (3), the back blades are arranged in length, and flow-through hubs are designed in the middle positions.
5. A centrifugal pump adapted for cyclone feed conditions according to claim 1, wherein: the sheath (4) and the guard plate (5) are matched by adopting an inclined opening.
6. A centrifugal pump adapted for cyclone feed conditions according to claim 1, wherein: the closed space formed between the inner shell and the impeller (3) is a water pumping chamber (12), the water pumping chamber (12) adopts a semi-spiral design, the spiral angle of the original water pumping chamber is increased, and the throat part of the water pumping chamber is specially thickened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010739795.3A CN112032057A (en) | 2020-07-28 | 2020-07-28 | Centrifugal pump suitable for feeding working condition of cyclone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010739795.3A CN112032057A (en) | 2020-07-28 | 2020-07-28 | Centrifugal pump suitable for feeding working condition of cyclone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112032057A true CN112032057A (en) | 2020-12-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010739795.3A Pending CN112032057A (en) | 2020-07-28 | 2020-07-28 | Centrifugal pump suitable for feeding working condition of cyclone |
Country Status (1)
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| CN (1) | CN112032057A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2533308Y (en) * | 2001-12-31 | 2003-01-29 | 石家庄工业泵厂 | Adjustable front- and rear- seal gap and easy-to-dismount residue slurry pump |
| CN202065219U (en) * | 2011-04-28 | 2011-12-07 | 安徽三联泵业股份有限公司 | Bracket device for slurry pump |
| CN104074770A (en) * | 2014-07-04 | 2014-10-01 | 北京中创天成科技发展有限公司 | Novel TC series slurry pump |
| CN104358706A (en) * | 2014-10-29 | 2015-02-18 | 安徽三联泵业股份有限公司 | Slurry pump for cyclone |
| CN205078455U (en) * | 2015-10-27 | 2016-03-09 | 石家庄栾兴泵业有限公司 | Composite seal formula sediment stuff pump |
| CN111005876A (en) * | 2019-11-22 | 2020-04-14 | 三联泵业股份有限公司 | Swirler feed pump impeller structure |
-
2020
- 2020-07-28 CN CN202010739795.3A patent/CN112032057A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2533308Y (en) * | 2001-12-31 | 2003-01-29 | 石家庄工业泵厂 | Adjustable front- and rear- seal gap and easy-to-dismount residue slurry pump |
| CN202065219U (en) * | 2011-04-28 | 2011-12-07 | 安徽三联泵业股份有限公司 | Bracket device for slurry pump |
| CN104074770A (en) * | 2014-07-04 | 2014-10-01 | 北京中创天成科技发展有限公司 | Novel TC series slurry pump |
| CN104358706A (en) * | 2014-10-29 | 2015-02-18 | 安徽三联泵业股份有限公司 | Slurry pump for cyclone |
| CN205078455U (en) * | 2015-10-27 | 2016-03-09 | 石家庄栾兴泵业有限公司 | Composite seal formula sediment stuff pump |
| CN111005876A (en) * | 2019-11-22 | 2020-04-14 | 三联泵业股份有限公司 | Swirler feed pump impeller structure |
Non-Patent Citations (3)
| Title |
|---|
| JUNICHI KUROKAWA 等: ""低比转数高效率蜗壳泵的开发"", 《流体机械》 * |
| 周方明等: ""基圆对双流道叶轮压出室第Ⅰ段面流场的影响"", 《科技信息》 * |
| 赵啸冰等: ""水力机械蜗壳的研究进展"", 《农业机械学报》 * |
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Application publication date: 20201204 |