CN108131296A - A kind of coil formula centrifugal pump - Google Patents
A kind of coil formula centrifugal pump Download PDFInfo
- Publication number
- CN108131296A CN108131296A CN201810071543.0A CN201810071543A CN108131296A CN 108131296 A CN108131296 A CN 108131296A CN 201810071543 A CN201810071543 A CN 201810071543A CN 108131296 A CN108131296 A CN 108131296A
- Authority
- CN
- China
- Prior art keywords
- coil
- pump
- pipe
- shell
- bracket
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 28
- 238000003466 welding Methods 0.000 claims description 11
- 239000000945 filler Substances 0.000 claims description 3
- 238000009826 distribution Methods 0.000 abstract description 4
- 239000012530 fluid Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract 1
- 230000003628 erosive effect Effects 0.000 abstract 1
- 230000014759 maintenance of location Effects 0.000 abstract 1
- 238000010992 reflux Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 11
- 238000004140 cleaning Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- 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
- F04D1/04—Helico-centrifugal pumps
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A kind of coil formula centrifugal pump, is related to pipe conveying equipment field, and including pump case, axis and coil body, coil body is located inside pump case, and an end face of pump case is equipped with oral siphon, and the side wall of pump case is equipped with outlet pipe；Coil body includes supervisor and more branch pipes, and one end of supervisor completely encloses, the external cylindrical surface of the other end of supervisor and the inner cylinder face retention gap of oral siphon, and more branch pipes are located on the side wall of supervisor, and is uniformly distributed along supervisor is circumferential；One end of axis is extend into pump case to be connected with the one end being responsible for, and the other end of axis is connected with motor.Coil formula centrifugal pump of the present invention, easy to make, cost reduction is apparent；Runner is isometrical runner in coil body, and fluid flowing continuity is good, and streamline distribution is more reasonable, eliminates reflux, wake flow, cavitation erosion to a certain extent, and reduce vibrations and noise；The characteristic of coil body enclosed construction and isometrical runner can improve suction inlet negative pressure, and conveying effect is good.
Description
Technical Field
The invention relates to the field of pipeline conveying equipment, in particular to a coil type centrifugal pump.
Background
The centrifugal pump is used as key equipment of a pipeline conveying system and provides power for conveying, the power conversion element of the centrifugal pump is an impeller, and centrifugal force generated by rotation of the impeller provides power for fluid. At present, no matter the impeller is an open impeller or a closed impeller, the structure is complex, the cost is high, and the phenomena of backflow, wake flow, cavitation and the like are easily generated in flow channels with unequal cross sections. Therefore, it is important to solve the above problems to some extent and to reduce the cost of the piping equipment.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a coil type centrifugal pump which comprises a pump shell, a shaft and a coil body, wherein the coil body is positioned in the pump shell; the coil body comprises a main pipe and a plurality of branch pipes, one end of the main pipe is completely closed, a gap is reserved between an outer cylindrical surface of the other end of the main pipe and an inner cylindrical surface of the water inlet pipe, and the plurality of branch pipes are positioned on the side wall of the main pipe and are uniformly distributed along the circumferential direction of the main pipe; one end of the shaft extends into the pump shell and is connected with one end of the main pipe, and the other end of the shaft is connected with the motor.
The centrifugal pump further comprises a bearing and a bracket, the bracket is a hollow shell, through holes are formed in two ends of the bracket, the bearing is located in the bracket, the other end of the shaft penetrates through the through holes in the two ends of the bearing and the bracket to be connected with the motor, and one end of the bracket is connected with the other end face of the pump shell.
The pump housing comprises a front housing and a rear housing; one end face of the front shell is provided with a through hole corresponding to the water inlet pipe, the water inlet pipe is fixed on the through hole of the front shell through welding, the other end of the front shell is connected with one end face of the rear shell through a bolt, a filler seal is arranged at the joint, and the other end face of the rear shell is fixedly connected with the bracket through a bolt.
The inner wall of the water inlet pipe is provided with a step, and the end face of the step on the inner wall of the water inlet pipe is flush with the other end of the main pipe.
One end of the main pipe and the end face of one end of the shaft are fixed through welding.
A plurality of holes are formed in the side wall of the main pipe, a branch pipe is correspondingly installed in each hole, and each branch pipe in the plurality of branch pipes is fixedly connected with the corresponding hole through welding or threaded connection.
And a dirt cleaning opening is also formed in one end face of the pump shell.
The centrifugal pump is also provided with a fixed bracket on the side wall of the pump shell close to the ground.
The bending directions of the branch pipes are consistent, and each branch pipe in the branch pipes is in spiral divergent distribution.
Drawings
FIG. 1 is an exploded view of a coil centrifugal pump according to the present invention;
FIG. 2 is a side view of a schematic exploded view of a coil centrifugal pump according to the present invention;
wherein,
the device comprises a pump shell 1, a shaft 2, a rotary pipe body 3, a water inlet pipe 4, a water outlet pipe 5, a main pipe 6, a plurality of branch pipes 7, a bearing 8, a bracket 9, a front shell 10, a rear shell 11, a dirt cleaning opening 12 and a fixed support 13.
Detailed Description
In order to solve the problems in the prior art, as shown in fig. 1 and 2, the invention provides a coil centrifugal pump, which comprises a pump shell 1, a shaft 2 and a coil body 3, wherein the coil body 3 is positioned inside the pump shell 1, one end surface of the pump shell 1 is provided with a water inlet pipe 4, and the side wall of the pump shell 1 is provided with a water outlet pipe 5; the water inlet pipe 4 is connected with a liquid input pipeline, and the water outlet pipe 5 is connected with a liquid output pipeline;
the spiral pipe body 3 comprises a main pipe 6 and a plurality of branch pipes 7, one end of the main pipe 6 is completely sealed, a small gap is reserved between an outer cylindrical surface at the other end of the main pipe 6 and an inner cylindrical surface of the water inlet pipe 4, the branch pipes 7 are positioned on the side wall of the main pipe 6 and are uniformly distributed along the circumferential direction of the main pipe 6, the bending directions of the branch pipes 7 are consistent, each branch pipe 7 in the branch pipes 7 is in spiral divergent distribution, the spiral can be a plane spiral or a three-dimensional spiral, and the water conservancy characteristics of the centrifugal pump are changed due to different bending radians of the branch pipes 7; a plurality of holes are formed in the side wall of the main pipe 6, a branch pipe 7 is correspondingly installed in each hole, each branch pipe 7 in the plurality of branch pipes 7 is fixedly connected with the corresponding hole through welding or threaded connection, and the welding mode is adopted in the embodiment; one end of the shaft 2 extends into the pump shell 1 and is connected with one end of the main pipe 6 through welding, and the other end of the shaft 2 is connected with the motor; the diameter of the main pipe 6 and the number of the branch pipes 7 can be adjusted according to requirements;
the centrifugal pump also comprises a bearing 8 and a bracket 9, wherein the bracket 9 is a hollow shell, through holes are formed in two ends of the bracket 9, the bearing 8 is positioned in the bracket 9, the other end of the shaft 2 penetrates through the through holes in the two ends of the bearing 8 and the bracket 9 to be connected with the motor, and one end of the bracket 9 is connected with the other end face of the pump shell 1; the bearing 8 comprises an inner ring and an outer ring, the outer ring of the bearing 8 is fixed with the bracket 9, and the inner ring of the bearing 8 is fixed with the shaft 2;
the pump shell 1 comprises a front shell 10 and a rear shell 11, wherein the front shell 10 can be a cylindrical shell with one end sealed and the other end not sealed, the rear shell 11 can be a drum-shaped shell with one larger end and one smaller end, the two ends of the rear shell 11 are not sealed, one end surface of the front shell 10, namely the closed end of the front shell 10 is provided with a through hole corresponding to the water inlet pipe 4, the water inlet pipe 4 is fixed on the through hole of the front shell 10 through welding, the other end of the front shell 10, namely the non-closed end of the front shell 10, is connected with one end surface of the rear shell 11, namely the larger end of the rear shell 11 through a bolt, and a filler seal is arranged at the joint of the front shell 10 and the rear shell 11 to ensure the sealing performance of the pump shell 1; the other end face, namely the smaller end, of the rear shell 11 is fixedly connected with the bracket 9 through a bolt, and a rubber gasket can be used as the bolt connection position in a sealing mode;
the inner wall of the water inlet pipe 4 is provided with a step, the end surface of the step on the inner wall of the water inlet pipe 4 is flush with the other end of the main pipe 6, the step on the inner wall is provided with a sealing ring, and the sealing ring is fixed in an adhesive manner and used for blocking a small gap between the water inlet pipe 4 and the main pipe 6; the outer wall of the water inlet pipe 4 can be provided with steps for connecting a liquid input pipeline;
a dirt cleaning opening 12 is further formed in one end face of the pump shell 1, and the dirt cleaning opening 12 can be located at a position close to the ground and used for discharging residual liquid in the centrifugal pump;
the centrifugal pump is also provided with a fixing bracket 13 on the side wall of the pump shell 1 close to the ground for fixing the centrifugal pump.
The invention relates to a using method of a coil centrifugal pump, which comprises the following steps: before the centrifugal pump is started, liquid is added into the pump shell 1 to at least two thirds, then a motor is started, the motor drives a shaft 2 to rotate, so that a rotary pipe body 3 is driven to rotate at a high speed, the liquid enters a main pipe 6 from a water inlet pipe 4 through a liquid input pipeline, is thrown out from a plurality of branch pipes 7 under the action of centrifugal force, and is discharged to a liquid output pipeline through a water outlet pipe 5; at the center of the pump shell 1, because the liquid is thrown out under the action of centrifugal force to form vacuum, the liquid is pressed into the pump shell 1 under the action of atmospheric pressure, the coil body 3 continuously rotates, so that the liquid continuously flows in and out under the action of the coil body 3 to finish conveying.
The coil type centrifugal pump is convenient to manufacture and has the following characteristics:
first, the cost of the coil centrifugal pump is low. When the small flow is transported, a plurality of branch pipes are used as the coil pipes, and the structure is more compact than that of the impeller. During large-flow transportation, the difficult problem of processing a large impeller is avoided, a rotating pipe body with a welding structure or a threaded connection structure can be adopted, and the cost is obviously reduced.
And the flow channel in the coil body is an equal-diameter flow channel, so that the fluid flow continuity is good, the streamline distribution is more reasonable, the backflow, the wake flow and the cavitation are eliminated to a certain degree, and the vibration and the noise are reduced.
And thirdly, the negative pressure of the suction inlet can be improved by the closed structure of the coil body and the characteristics of the equal-diameter flow passage, and the conveying effect is good.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. A coil type centrifugal pump is characterized by comprising a pump shell (1), a shaft (2) and a coil body (3), wherein the coil body (3) is positioned inside the pump shell (1), one end surface of the pump shell (1) is provided with a water inlet pipe (4), and the side wall of the pump shell (1) is provided with a water outlet pipe (5); the rotary pipe body (3) comprises a main pipe (6) and a plurality of branch pipes (7), one end of the main pipe (6) is completely sealed, a gap is reserved between an outer cylindrical surface of the other end of the main pipe (6) and an inner cylindrical surface of the water inlet pipe (4), and the plurality of branch pipes (7) are positioned on the side wall of the main pipe (6) and are uniformly distributed along the circumferential direction of the main pipe (6); one end of the shaft (2) extends into the pump shell (1) and is connected with one end of the main pipe (6), and the other end of the shaft (2) is connected with the motor.
2. The coil centrifugal pump according to claim 1, further comprising a bearing (8) and a bracket (9), wherein the bracket (9) is a hollow housing, and both ends of the bracket are provided with through holes, the bearing (8) is located in the bracket (9), the other end of the shaft (2) passes through the through holes at both ends of the bearing (8) and the bracket (9) to be connected with the motor, and one end of the bracket (9) is connected with the other end face of the pump housing (1).
3. A coil centrifugal pump according to claim 2, characterized in that the pump housing (1) comprises a front shell (10) and a rear shell (11); the end face of the front shell (10) is provided with a through hole corresponding to the water inlet pipe (4), the water inlet pipe (4) is fixed on the through hole of the front shell (10) through welding, the other end of the front shell (10) is connected with one end face of the rear shell (11) through a bolt, a filler seal is arranged at the joint, and the other end face of the rear shell (11) is fixed with the bracket (9) through a bolt.
4. The coil centrifugal pump according to claim 1, wherein the inner wall of the water inlet pipe (4) is provided with a step, and the end surface of the step on the inner wall of the water inlet pipe (4) is flush with the other end of the main pipe (6).
5. A centrifugal coil pump according to claim 1, characterized in that one end of the main pipe (6) is fixed to an end face of one end of the shaft (2) by welding.
6. A centrifugal coil pump according to claim 1, wherein the main pipe (6) has a plurality of holes formed in its side wall, a branch pipe (7) is installed in each hole, and each branch pipe (7) of the plurality of branch pipes (7) is fixedly connected to its corresponding hole by welding or screwing.
7. A coil centrifugal pump according to claim 1, characterized in that a dirt-removing opening (12) is also provided on one end face of the pump housing (1).
8. Centrifugal pump of the coil type according to claim 1, characterized in that it is also provided with a fixing bracket (13) on the side wall of the pump casing (1) close to the ground.
9. The centrifugal coil pump according to claim 1, wherein the plurality of branch pipes (7) are bent in the same direction, and each branch pipe (7) of the plurality of branch pipes (7) is spirally diverged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810071543.0A CN108131296A (en) | 2018-01-25 | 2018-01-25 | A kind of coil formula centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810071543.0A CN108131296A (en) | 2018-01-25 | 2018-01-25 | A kind of coil formula centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108131296A true CN108131296A (en) | 2018-06-08 |
Family
ID=62400083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810071543.0A Pending CN108131296A (en) | 2018-01-25 | 2018-01-25 | A kind of coil formula centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108131296A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86106587A (en) * | 1985-10-18 | 1987-04-22 | 珀-奥洛夫·卡尔桑 | Loop pump |
| CN2476668Y (en) * | 2001-04-02 | 2002-02-13 | 四川省机械研究设计院 | Rotation injection pump |
| CN1815033A (en) * | 2006-03-06 | 2006-08-09 | 崔春盛 | High-pressure spiral-coil pump |
| CN2893233Y (en) * | 2006-03-06 | 2007-04-25 | 崔春盛 | High pressure spiral-tube pump |
| CN101248279A (en) * | 2005-04-29 | 2008-08-20 | 伟尔矿业澳大利亚有限公司 | Air diffuser system for industrial pumps |
| CN101403393A (en) * | 2007-10-03 | 2009-04-08 | 普拉德研究及开发股份有限公司 | System and method for improving flow in pumping systems |
| CN101498309A (en) * | 2009-02-03 | 2009-08-05 | 王秀华 | Centripetal pump and blade tube type impeller |
| CN101852211A (en) * | 2010-03-26 | 2010-10-06 | 杨爱民 | Novel centrifugal pump |
| CN201644062U (en) * | 2010-04-30 | 2010-11-24 | 武汉致衡环境安全工程技术有限公司 | Screw driving piston pressurization sludge pelletizer |
| CN102295150A (en) * | 2011-05-19 | 2011-12-28 | 辽宁工程技术大学 | Anti-freezing heating supporting roller of axial flow type belt conveyor |
| CN102367799A (en) * | 2011-10-20 | 2012-03-07 | 苏州市伦琴工业设计有限公司 | Spiral pipe pump |
| CN105308325A (en) * | 2013-03-15 | 2016-02-03 | 环境技术泵系统股份有限公司 | Gear-driven flow-through pitot tube pump |
-
2018
- 2018-01-25 CN CN201810071543.0A patent/CN108131296A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86106587A (en) * | 1985-10-18 | 1987-04-22 | 珀-奥洛夫·卡尔桑 | Loop pump |
| CN2476668Y (en) * | 2001-04-02 | 2002-02-13 | 四川省机械研究设计院 | Rotation injection pump |
| CN101248279A (en) * | 2005-04-29 | 2008-08-20 | 伟尔矿业澳大利亚有限公司 | Air diffuser system for industrial pumps |
| CN1815033A (en) * | 2006-03-06 | 2006-08-09 | 崔春盛 | High-pressure spiral-coil pump |
| CN2893233Y (en) * | 2006-03-06 | 2007-04-25 | 崔春盛 | High pressure spiral-tube pump |
| CN101403393A (en) * | 2007-10-03 | 2009-04-08 | 普拉德研究及开发股份有限公司 | System and method for improving flow in pumping systems |
| CN101498309A (en) * | 2009-02-03 | 2009-08-05 | 王秀华 | Centripetal pump and blade tube type impeller |
| CN101852211A (en) * | 2010-03-26 | 2010-10-06 | 杨爱民 | Novel centrifugal pump |
| CN201644062U (en) * | 2010-04-30 | 2010-11-24 | 武汉致衡环境安全工程技术有限公司 | Screw driving piston pressurization sludge pelletizer |
| CN102295150A (en) * | 2011-05-19 | 2011-12-28 | 辽宁工程技术大学 | Anti-freezing heating supporting roller of axial flow type belt conveyor |
| CN102367799A (en) * | 2011-10-20 | 2012-03-07 | 苏州市伦琴工业设计有限公司 | Spiral pipe pump |
| CN105308325A (en) * | 2013-03-15 | 2016-02-03 | 环境技术泵系统股份有限公司 | Gear-driven flow-through pitot tube pump |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180608 |
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| RJ01 | Rejection of invention patent application after publication |