CN109322859A - A kind of centrifugal pump reducing damage in impeller - Google Patents
A kind of centrifugal pump reducing damage in impeller Download PDFInfo
- Publication number
- CN109322859A CN109322859A CN201811481948.8A CN201811481948A CN109322859A CN 109322859 A CN109322859 A CN 109322859A CN 201811481948 A CN201811481948 A CN 201811481948A CN 109322859 A CN109322859 A CN 109322859A
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- China
- Prior art keywords
- impeller
- water inlet
- inlet pipe
- annular groove
- pump
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- 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
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/708—Suction grids; Strainers; Dust separation; Cleaning specially for liquid 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
- F04D29/40—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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention relates to centrifugal pump field more particularly to a kind of centrifugal pumps for reducing damage in impeller.A kind of its technical solution are as follows: centrifugal pump for reducing damage in impeller, including motor and the pump housing, it is respectively arranged with water inlet pipe and outlet pipe on the pump housing, the pump chamber being connected with water inlet pipe, outlet pipe is provided in the pump housing, impeller is provided in pump chamber, the output shaft of the motor is connected with impeller；It is connected with umbrella filter screen in the water inlet pipe, several arc ports are provided on water inlet pipe, arc port is located at side of the umbrella filter screen far from impeller, annular groove is arranged on water inlet pipe, and several arc ports are connected to annular groove.The present invention provides a kind of sufficiently to stop impurity at water inlet pipe, reduces the centrifugal pump that impurity causes abrasion to impeller, solves the problems, such as that existing centrifugal pump is easy the excessive wear by impurity.
Description
Technical field
The present invention relates to centrifugal pump field more particularly to a kind of centrifugal pumps for reducing damage in impeller.
Background technique
Centrifugal pump is to be rotated using impeller and make water that centrifugal movement occur come work.Water pump is before activation, it is necessary to make to pump
It is full of water in shell and suction hose, then starts motor, pump shaft impeller and water is made to do high speed rotary motion, centrifugation fortune occurs for water
It is dynamic, it is thrown toward impeller outer edge, the runner through volute pump case flows into the pressure pipe road of water pump.
What the essential structure of centrifugal pump was made of six parts is impeller, the pump housing, pump shaft, bearing, sealing ring, filler respectively
Letter.1, impeller is the core of centrifugal pump, its revolving speed high output is big, and the blade on impeller plays main function again, and impeller exists
It to be tested by static balance before assembly.Surfaces externally and internally on impeller is required to be smooth, to reduce the friction loss of water flow.2, the pump housing
Claim pump case, it is the main body of water pump.Support fixed function is played, and is connected with the bracket of installation bearing.3, the effect of pump shaft
It is that shaft coupling is borrowed to be connected with motor, the torque of motor is transmitted to impeller, so it is the main component for transmitting mechanical energy.
4, sliding bearing uses clean oil to make lubricant, refuels and arrives oil level line.Too many oil will be oozed out along pump shaft, and very little bearing is again
It overheats to burn out and cause the accident！At up to 85 degree of temperature of water pump operation process middle (center) bearing, 60 degree or so are generally operated in.5,
Sealing ring also known as subtracts leakage ring.6, stuffing-box is mainly made of filler, seal cage, filling tube, gland, water sealing (sealing water) pipe.Stuffing-box
Effect primarily to closing pump case and pump shaft between gap, do not allow pump in water flow flow to outside come also do not allow outside
Air enters in pump.Remain the vacuum in water pump！When friction generates heat to keep a grip on water by water seal for pump shaft and filler
Make filler cooling in water seal circle！Keep the normal operation of water pump.So to filler during the operation tours of inspection of water pump
The inspection of letter be it is important to note that！Filler will be replaced in or so 600 hours of operation.
Number of patent application is that the utility model patent of CN201220472021.X discloses a kind of centrifugal pump of horizontal axis arrangement knot
Structure, including pedestal, centrifugal pump base, motor, centrifugal pump, water inlet pipe and outlet pipe；Centrifugal pump base is set on the base；Motor and
Centrifugal pump is located in centrifugal pump base, and the output shaft of motor and the pump shaft of centrifugal pump connect；The axial direction of the water inlet of centrifugal pump with
The axial direction of pump shaft is identical, the axial direction for being axially perpendicular to pump shaft of the water outlet of centrifugal pump；Water inlet pipe and outlet pipe be separately connected from
The inlet and outlet of heart pump；Vibration isolator is connected between pedestal and centrifugal pump base；Vibration isolator includes top plate and bottom plate, top plate
It is connect with centrifugal pump base, bottom plate is connect with pedestal；Elastomer is connected between top plate and bottom plate, the elastic force direction of elastomer is hung down
The directly plane where bottom plate；Limit plate is designed at left and right sides of bottom plate；The top plate is in the space between two limit plates.
The utility model structure is simple, and having modified centrifugal pump, there is a phenomenon where horizontal displacements, thus reduce centrifugal pump occur vibration and
Generate noise.
But after above-mentioned centrifugal pump installation, the water containing impurity is directly reached from impeller from water inlet pipe, and impurity can be right
Impeller causes to wear.When being centrifuged pump work, impeller high-speed rotation, silt or other impurities in water can scratch impeller surface, make
At impeller premature breakdown.When the impurity contained in water is excessive, the ability to work of impeller is also influenced, the conveying capacity of centrifugal pump is caused
Decline.
Summary of the invention
The present invention overcomes the deficiencies in the prior art, provide one kind and sufficiently stop impurity at water inlet pipe, reduce impurity pair
Impeller causes the centrifugal pump of abrasion, solves the problems, such as that existing centrifugal pump is easy the excessive wear by impurity.
In order to solve the above technical problems, the invention adopts the following technical scheme:
A kind of centrifugal pump reducing damage in impeller, including motor and the pump housing are respectively arranged with water inlet pipe and water outlet on the pump housing
It manages, is provided with the pump chamber being connected with water inlet pipe, outlet pipe in the pump housing, impeller, the output shaft of the motor are provided in pump chamber
It is connected with impeller；It is connected with umbrella filter screen in the water inlet pipe, several arc ports are provided on water inlet pipe, arc port is located at umbrella
Side of the shape filter screen far from impeller is arranged with annular groove on water inlet pipe, and several arc ports are connected to annular groove.
As a preferred solution of the present invention, it has been connected by screw to collection slag cylinder on the annular groove, has been provided on annular groove
Slag-drip opening, slag-drip opening are connected to collection slag cylinder；Slag-drip opening is located at one section of annular groove far from arc port.
As a preferred solution of the present invention, the collection slag cylinder includes connecting flange and cylinder, and connecting flange and cylinder are fixed,
Connecting flange is connected by screw on annular groove, and gasket seal is provided between connecting flange and annular groove.
As a preferred solution of the present invention, two pieces of spiral deflectors, two pieces of spiral deflectors are provided in the annular groove
Be set on water inlet pipe, two pieces of spiral deflectors splicing, spiral deflector one end is located at arc port, spiral deflector it is another
End is located at slag-drip opening.
As a preferred solution of the present invention, the cone angle of the umbrella filter screen is 60 °~120 °.
Compared with prior art, the beneficial effects of the present invention are:
1, of the invention after the water containing impurity enters water inlet pipe, the umbrella filter screen in water inlet pipe can effectively stop miscellaneous
Matter.Impurity can slide to arc port along the inclined-plane of umbrella filter screen, and flow into annular groove from arc port.Therefore, umbrella filters
It remains clean on the net, impurity is avoided to result in blockage umbrella filter screen.Impurity is collected in time by annular groove, avoids impurity weight
Newly it is mixed into water.Water by umbrella filter screen filtration is more clean, and when clean water enters in pump chamber, impeller is subject to miscellaneous
The abrasion condition of matter is less, effectively improves the service life of impeller, and impeller is made to keep higher conveying capacity.
2, the impurity in annular groove can flow into collection slag cylinder from slag-drip opening, facilitate in collection slag cylinder and be collected into certain impurity
Afterwards, collection slag cylinder is replaced, it is easy to operate without dismounting annular groove.
3, when needing replacing collection slag cylinder, the screw between the connecting flange and annular groove that collect slag cylinder is backed out, side
Just it dismounts.Gap between connecting flange and annular groove can be sealed by gasket seal, the feelings for avoiding moisture or impurity from revealing
Condition.
4, impurity can be drained into slag-drip opening from arc port by spiral deflector, guaranteed that impurity flows to slag-drip opening completely, improved
The collection rate of impurity.
5, the cone angle of umbrella filter screen is 60 °~120 °, then can smoothly slide to arc when impurity reaches umbrella filtering net surface
Shape mouth avoids impurity from being attached to the case where umbrella filters net surface.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is part-structure figure of the invention；
Fig. 3 is the structural schematic diagram of annular groove and spiral deflector；
Fig. 4 is the cross-sectional view of water inlet pipe.
In figure, 1- motor, the 2- pump housing, 3- water inlet pipe, 4- outlet pipe, 5- impeller, 6- umbrella filter screen, 7- annular groove, 8-
Collect slag cylinder, 9- spiral deflector, 21- pump chamber, 31- arc port, 71- slag-drip opening, 81- connecting flange, 82- cylinder, 83- gasket
Piece.
Specific embodiment
With reference to the accompanying drawing, the present invention is described in detail.
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.
Embodiment one
A kind of centrifugal pump reducing damage in impeller, including motor 1 and the pump housing 2 are respectively arranged with 3 He of water inlet pipe on the pump housing 2
Outlet pipe 4 is provided with the pump chamber 21 being connected with water inlet pipe 3, outlet pipe 4 in the pump housing 2, impeller 5 is provided in pump chamber 21, described
The output shaft of motor 1 is connected with impeller 5；It is connected with umbrella filter screen 6 in the water inlet pipe 3, several arcs are provided on water inlet pipe 3
Shape mouth 31, arc port 31 are located at side of the umbrella filter screen 6 far from impeller 5, annular groove 7, several arcs are arranged on water inlet pipe 3
Mouth 31 is connected to annular groove 7.
It is of the invention after the water containing impurity enters water inlet pipe 3, the umbrella filter screen 6 in water inlet pipe 3 can effectively stop
Impurity.Impurity can slide to arc port 31 along the inclined-plane of umbrella filter screen 6, and flow into annular groove 7 from arc port 31.Therefore,
It remains clean on umbrella filter screen 6, impurity is avoided to result in blockage umbrella filter screen 6.Impurity is received in time by annular groove 7
Collection, avoids impurity from being mixed into water again.The water filtered by umbrella filter screen 6 is more clean, when clean water enters pump chamber 21
When interior, the abrasion condition for the impurity that impeller 5 is subject to is less, effectively improves the service life of impeller 5, and keeps impeller 5
Higher conveying capacity.
Embodiment two
On the basis of example 1, it has been connected by screw to collection slag cylinder 8 on the annular groove 7, has been provided on annular groove 7
Slag-drip opening 71, slag-drip opening 71 are connected to collection slag cylinder 8；Slag-drip opening 71 is located at one section of annular groove 7 far from arc port 31.
Impurity in annular groove 7 can flow into collection slag cylinder 8 from slag-drip opening 71, facilitate be collected into collection slag cylinder 8 it is certain miscellaneous
After matter, collection slag cylinder 8 is replaced, it is easy to operate without dismounting annular groove 7.
Embodiment three
On the basis of embodiment one or embodiment two, the collection slag cylinder 8 includes connecting flange 81 and cylinder 82, connection method
Orchid 81 and cylinder 82 are fixed, and connecting flange 81 is connected by screw on annular groove 7, sets between connecting flange 81 and annular groove 7
It is equipped with gasket seal 83.
When needing replacing collection slag cylinder 8, the screw between the connecting flange 81 and annular groove 7 that collect slag cylinder 8 is backed out,
Easy disassembly.Gap between connecting flange 81 and annular groove 7 can be sealed by gasket seal 83, and moisture or impurity is avoided to let out
The case where dew.
Example IV
On the basis of above-mentioned any one embodiment, it is provided with two pieces of spiral deflectors 9 in the annular groove 7, two pieces
Spiral deflector 9 is set on water inlet pipe 3, and two pieces of spiral deflectors 9 splice, and 9 one end of spiral deflector is located at arc port 31,
The other end of spiral deflector 9 is located at slag-drip opening 71.
Impurity can be drained into slag-drip opening 71 from arc port 31 by spiral deflector 9, guarantee that impurity flows to slag-drip opening 71 completely,
Improve the collection rate of impurity.
Embodiment five
On the basis of above-mentioned any one embodiment, the cone angle of the umbrella filter screen 6 is 60 °~120 °.
The cone angle of umbrella filter screen 6 is 60 °~120 °, then can smoothly slide to arc when impurity reaches 6 surface of umbrella filter screen
Shape mouth 31, the case where avoiding impurity from being attached to umbrella 6 surface of filter screen.
Claims (5)
1. a kind of centrifugal pump for reducing damage in impeller, including motor (1) and the pump housing (2), the pump housing are respectively arranged with water inlet pipe on (2)
(3) and outlet pipe (4) pump chamber (21) being connected with water inlet pipe (3), outlet pipe (4), pump chamber (21), are provided in the pump housing (2)
It is inside provided with impeller (5), the output shaft of the motor (1) is connected with impeller (5)；It is characterized in that, connecting in the water inlet pipe (3)
It is connected to umbrella filter screen (6), is provided on water inlet pipe (3) several arc ports (31), arc port (31) is located at umbrella filter screen (6)
Side far from impeller (5) is arranged with annular groove (7) on water inlet pipe (3), and several arc ports (31) are connected to annular groove (7).
2. a kind of centrifugal pump for reducing damage in impeller according to claim 1, which is characterized in that on the annular groove (7)
It has been connected by screw to collection slag cylinder (8), has been provided with slag-drip opening (71) on annular groove (7), slag-drip opening (71) and collection slag cylinder (8) are even
It is logical；Slag-drip opening (71) is located at one section of annular groove (7) far from arc port (31).
3. a kind of centrifugal pump for reducing damage in impeller according to claim 1, which is characterized in that collection slag cylinder (8) packet
Connecting flange (81) and cylinder (82) are included, connecting flange (81) and cylinder (82) are fixed, and connecting flange (81) is connected by screw to
In on annular groove (7), gasket seal (83) are provided between connecting flange (81) and annular groove (7).
4. a kind of centrifugal pump for reducing damage in impeller according to claim 2, which is characterized in that in the annular groove (7)
Two pieces of spiral deflectors (9) are provided with, two pieces of spiral deflectors (9) are set on water inlet pipe (3), two pieces of spiral deflectors (9)
Splicing, spiral deflector (9) one end are located at arc port (31), and the other end of spiral deflector (9) is located at slag-drip opening (71).
5. a kind of centrifugal pump of reduction damage in impeller described in any one according to claim 1~4, which is characterized in that described
The cone angle of umbrella filter screen (6) is 60 °~120 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811481948.8A CN109322859B (en) | 2018-12-05 | 2018-12-05 | Centrifugal pump capable of reducing impeller abrasion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811481948.8A CN109322859B (en) | 2018-12-05 | 2018-12-05 | Centrifugal pump capable of reducing impeller abrasion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109322859A true CN109322859A (en) | 2019-02-12 |
| CN109322859B CN109322859B (en) | 2021-03-05 |
Family
ID=65256477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811481948.8A Active CN109322859B (en) | 2018-12-05 | 2018-12-05 | Centrifugal pump capable of reducing impeller abrasion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109322859B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110905820A (en) * | 2019-12-03 | 2020-03-24 | 三联泵业股份有限公司 | Centrifugal slurry pump with pumping cutting device |
| CN113550910A (en) * | 2021-07-12 | 2021-10-26 | 鱼台县卧龙水泵制造有限公司 | Axial-flow type water pump capable of preventing silt from being abraded |
| CN116624435A (en) * | 2023-04-18 | 2023-08-22 | 烟台龙港泵业股份有限公司 | Back flushing central liquid outlet submerged pump and vertical cylinder bag pump |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1280677B (en) * | 1960-02-27 | 1968-10-17 | Schwermaschb Karl Liebknecht M | Filter system for deep well centrifugal pumps |
| CN204827980U (en) * | 2015-08-14 | 2015-12-02 | 江西佳通通风设备有限公司 | Self -cooling fire control high temperature smoke exhaust fan |
| CN206708045U (en) * | 2017-03-30 | 2017-12-05 | 四川江铜资源综合利用有限公司 | A kind of new moisture-eliminating blower |
| CN107605801A (en) * | 2016-07-11 | 2018-01-19 | 天津市明奥泵业有限公司 | A kind of preparation method for the centrifugal pump for conveying sewage |
-
2018
- 2018-12-05 CN CN201811481948.8A patent/CN109322859B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1280677B (en) * | 1960-02-27 | 1968-10-17 | Schwermaschb Karl Liebknecht M | Filter system for deep well centrifugal pumps |
| CN204827980U (en) * | 2015-08-14 | 2015-12-02 | 江西佳通通风设备有限公司 | Self -cooling fire control high temperature smoke exhaust fan |
| CN107605801A (en) * | 2016-07-11 | 2018-01-19 | 天津市明奥泵业有限公司 | A kind of preparation method for the centrifugal pump for conveying sewage |
| CN206708045U (en) * | 2017-03-30 | 2017-12-05 | 四川江铜资源综合利用有限公司 | A kind of new moisture-eliminating blower |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110905820A (en) * | 2019-12-03 | 2020-03-24 | 三联泵业股份有限公司 | Centrifugal slurry pump with pumping cutting device |
| CN113550910A (en) * | 2021-07-12 | 2021-10-26 | 鱼台县卧龙水泵制造有限公司 | Axial-flow type water pump capable of preventing silt from being abraded |
| CN116624435A (en) * | 2023-04-18 | 2023-08-22 | 烟台龙港泵业股份有限公司 | Back flushing central liquid outlet submerged pump and vertical cylinder bag pump |
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| Publication number | Publication date |
|---|---|
| CN109322859B (en) | 2021-03-05 |
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