CN204738973U - Filter centrifugal pump - Google Patents
Filter centrifugal pump Download PDFInfo
- Publication number
- CN204738973U CN204738973U CN201520234246.5U CN201520234246U CN204738973U CN 204738973 U CN204738973 U CN 204738973U CN 201520234246 U CN201520234246 U CN 201520234246U CN 204738973 U CN204738973 U CN 204738973U
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- CN
- China
- Prior art keywords
- pump
- filter
- motor
- water purification
- purification mouth
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- Expired - Fee Related
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Abstract
The utility model belongs to the centrifugal pump field especially relates to a filter centrifugal pump, including sealed, the discharge outlet of motor A, support, the pump body, pump shaft, bearing, motor coupling, intermediate shaft coupling, pump cupling, impeller, bearing cover, pump cover, drain plug, motor B, flow controller, filter, filter, water inlet, derivation A, derivation B, rose box, filter, water purification mouth A, water purification mouth B, water purification mouth C, the motor A be in the higher authority of support, the support is in the higher authority of pump cover, the pump shaft runs through support, motor coupling, intermediate shaft coupling, pump cupling, bearing, bearing cover, pump cover, impeller, drain plug are in the inside of the pump body, the filter is in the next door of the pump body.
Description
Technical field
The utility model belongs to centrifugal pump field, particularly relates to a kind of filter centrifugation pump.
Background technique
Cavitation erosion (cavitation; Cavitation erosion) also known as cavitation pitting.Fluid under flow at high speed and pressure change condition, with the phenomenon that the metal surface of fluid contact occurs cavernous corrosion failure.Often occur in the rapid decompression district as centrifugal blade end of blade, form hole at this, hole is crushed in zone of high pressure and is produced surge pressure, destroys the protective film on metal surface, and rate of corrosion is accelerated.The feature of cavitation erosion first forms many tiny pits in metal surface, is then expanded into cave gradually.
The research of cavitation erosion surface topography is observed based on SEM mostly.The result of study of the many researchers surface that shows to cavitate produces serious plastic deformation, the microjet of fluid impacts and makes material surface produce cavitation erosion pin hole, subsequently in pin hole wall place crack initiation, crackle is internally expanded in tired mode, finally be tending towards parallel surfaces Directional Extension, cause top layer fritter to peel off when several crackle is connected, said process carries out repeatedly, and skin-material is constantly peeled off on time.Cavitation erosion microcosmic surface is uneven, is covered with cavitation erosion hole and crackle, and macroscopic view, in spongy pattern, produces pin hole and pit etc. sometimes.Edge, cavitation erosion hole forms hole lip, and hole lip is the major character of cavitation erosion, and this phenomenon supports that existing mechanism is theoretical, and the percussion with microjet is crossed in the impact produced when namely cavitation erosion is crumbled and fall from steam bubble.When cavitation is serious, material surface die break comes off.Sometimes can be observed fatigue striations under ESEM, thus, cavitation erosion is considered to a kind of fatigue ruption, and fatigue striations is the key character of fatigue fracture.Kocaflda and Vaidya etc. observe bottom the cavitation erosion pitting that produces in the cavitation erosion of A1 and have occurred striped, similar to fatigue striations.To the SEM observation on cavitate surface and surface lifting particle and the measurement of roughness, find that cavitation erosion surface characteristic is similar to Fatigue Fracture Characteristics.In cavitation erosion process, local plastic deformation striped affects formation and the expansion of crackle, causes material surface to relax and particle stripping, when Crack Extension is to certain depth, the vertical direction with being parallel to surface, usual edge is carried out, and this means that incubation period completes, the reduction of later generating material weight.Cavitation erosion is only one of many factors causing material damage, also observes by military service load simultaneously and corrodes the fatigue of materials caused.Crackle is along crystal boundary germinating, expansion and is connected and causes crystal grain to peel off being the important failure mode of one that cavitates.
From the working principle of centrifugal pump, near centrifugal pump impeller center (blade inlet), form low pressure area, the suction head of this pressure and pump is closely related.Pressure one timing above liquid storage tank, if pressure is lower near Pump Suction Nozzle, then suction head is higher.But the low pressure of suction port is conditional, this is because when the minimum pressure near blade inlet is equal to or less than the saturation vapor pressure of liquid under delivery temperature, liquid will gasify at this place and produce bubble, its will flow to zone of high pressure in company with liquid from low pressure area; Bubble condenses rapidly or breaks under High Pressure, and the liquid now rushes at the space occupied by Primordial Qi bubble with high speed, produce large surge pressure, and frequency of impact is high at shock point place; Due to percussion, the pump housing shaken and produce noise, and impeller and pump case local are in the repeated action of extreme shock power, make material surface tired, from beginning spot corrosion to forming crack, impeller or pump case are damaged, and this phenomenon is called cavitation phenomenon.When cavitation erosion occurs, owing to producing a large amount of bubbles, occupy the segment space of flow channel for liquids, cause the flow of pump, pressure head and decrease in efficiency.When cavitating serious, pump can not normal running.Therefore, in order to make centrifugal pump run well, should avoid producing cavitation phenomenon, this just requires that the minimum pressure near blade inlet must maintain more than a certain value, normally gets the saturation vapor pressure of liquid under delivery temperature as minimum pressure.Should be noted that, in practical operation, not easily determine the position of minimum pressure in pump, and be often as the criterion with the minimum pressure of surveying pump intake place.
Summary of the invention
The utility model provides a kind of filter centrifugation pump, to solve the problem that the water inlet dirt proposed in above-mentioned background technology too much affects centrifugal pump use.
The technical problem that the utility model solves realizes by the following technical solutions: the utility model provides a kind of filter centrifugation pump, it is characterized in that: comprise motor A, support, the pump housing, pump shaft, bearing, motor coupler, intermediate shaft coupling, pump coupling, impeller, bearing gland, pump cover, drain plug, motor B, flow dontroller, filter, filter seal, dewatering outlet, water intake, catchment channel A, catchment channel B, Rose Box, filter plate, water purification mouth A, water purification mouth B, water purification mouth C, described motor A are on described support, and described support is on described pump cover, and described pump shaft runs through described support, motor coupler, intermediate shaft coupling, pump coupling, bearing, bearing gland, pump cover, one end of described pump shaft connects described motor A, the other end of described pump shaft connects described impeller, described motor coupler is on described intermediate shaft coupling, and described intermediate shaft coupling is on described pump coupling, and described pump coupling is on described bearing, described bearing is on described bearing gland, described bearing gland on described pump cover, described pump cover on the described pump housing, described impeller, drain plug is in the inside of the described pump housing, and described filter is on the side of the described pump housing, and one end of described filter connects described filter seal, and the other end of described filter connects described motor B, described catchment channel A, catchment channel B, Rose Box is in the inside of described filter, and described water intake runs through described filter, described water intake on described Rose Box, described catchment channel A, one end of catchment channel B connects described water intake, described catchment channel A, the other end of catchment channel B connects described Rose Box, described filter plate in the inside of described Rose Box, described water purification mouth A, water purification mouth B, water purification mouth C is on described Rose Box, and described water purification mouth B is at described water purification mouth A, between water purification mouth C.
Described filter connects described dewatering outlet, and described dewatering outlet is in the inside of the described pump housing.
Described flow dontroller connects described motor B, filter.
Described filter seal connects the described pump housing.
The beneficial effects of the utility model are:
1 filter centrifugation pump is provided with filter, can filter, also can reduce the rubbish that greasy dirt etc. causes centrifugal pump to block to dirty in water intake water source, the use of protection centrifugal pump.
The use of 2 filters, can eliminate bubble and produce source, reduces the destruction that when centrifugal pump uses, cavitation erosion produces.
The use of 3 flow dontrollers, guarantees filtration flow-rate, and what keep filter to run is unobstructed.
The use of 4 filter seals, can reduce over filter rocking the pump housing.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further:
In figure: 1-motor A, 2-support, the 3-pump housing, 4-pump shaft, 5-bearing, 6-motor coupler, 7-intermediate shaft coupling, 8-pump coupling, 9-impeller, 10-bearing gland, 11-pump cover, 12-drain plug, 13-motor B, 14-flow dontroller, 15-filter, 16-filter seal, 17-dewatering outlet, 18-water intake, 19-catchment channel A, 20-catchment channel B, 21-Rose Box, 22-filter plate, 23-water purification mouth A, 24-water purification mouth B, 25-water purification mouth C.
Embodiment:
The present embodiment comprises motor A1, support 2, the pump housing 3, pump shaft 4, bearing 5, motor coupler 6, intermediate shaft coupling 7, pump coupling 8, impeller 9, bearing gland 10, pump cover 11, drain plug 12, motor B13, flow dontroller 14, filter 15, filter seal 16, dewatering outlet 17, water intake 18, catchment channel A19, catchment channel B20, Rose Box 21, filter plate 22, water purification mouth A23, water purification mouth B24, water purification mouth C25, motor A1 are on support 2, and support 2 is on pump cover 11, and pump shaft 4 runs through support 2, motor coupler 6, intermediate shaft coupling 7, pump coupling 8, bearing 5, bearing gland 10, pump cover 11, one end of pump shaft 4 connects motor A1, the other end of pump shaft 4 connects impeller 9, motor coupler 6 is on intermediate shaft coupling 7, and intermediate shaft coupling 7 is on pump coupling 8, and pump coupling 8 is on bearing 5, bearing 5 is on bearing gland 10, bearing gland 10 on pump cover 11, pump cover 11 on the pump housing 3, impeller 9, drain plug 12 is in the inside of the pump housing 3, and filter 15 is on the side of the pump housing 3, and one end of filter 15 connects filter seal 16, and the other end of filter 15 connects motor B13, catchment channel A19, catchment channel B20, Rose Box 21 is in the inside of filter 15, and water intake 18 penetrates filter 15, water intake 18 on Rose Box 21, catchment channel A19, one end of catchment channel B20 connects water intake 18, catchment channel A19, the other end of catchment channel B20 connects Rose Box 21, filter plate 22 in the inside of Rose Box 21, water purification mouth A23, water purification mouth B24, water purification mouth C25 is on Rose Box 21, and water purification mouth B24 is at water purification mouth A23, between water purification mouth C25.
Filter 15 connects dewatering outlet 17, and dewatering outlet 17 is in the inside of the pump housing 3.
Flow dontroller 14 connects motor B13, filter 15.
Filter seal 16 connects the pump housing 3.
Utilize technological scheme described in the utility model, or those skilled in the art being under the inspiration of technical solutions of the utility model, designing similar technological scheme, and reach above-mentioned technique effect, is all fall into protection domain of the present utility model.
Claims (4)
1. a filter centrifugation pump, is characterized in that: comprise motor A, support, the pump housing, pump shaft, bearing, motor coupler, intermediate shaft coupling, pump coupling, impeller, bearing gland, pump cover, drain plug, motor B, flow dontroller, filter, filter seal, dewatering outlet, water intake, catchment channel A, catchment channel B, Rose Box, filter plate, water purification mouth A, water purification mouth B, water purification mouth C, described motor A are on described support, and described support is on described pump cover, and described pump shaft runs through described support, motor coupler, intermediate shaft coupling, pump coupling, bearing, bearing gland, pump cover, one end of described pump shaft connects described motor A, the other end of described pump shaft connects described impeller, described motor coupler is on described intermediate shaft coupling, and described intermediate shaft coupling is on described pump coupling, and described pump coupling is on described bearing, described bearing is on described bearing gland, described bearing gland on described pump cover, described pump cover on the described pump housing, described impeller, drain plug is in the inside of the described pump housing, and described filter is on the side of the described pump housing, and one end of described filter connects described filter seal, and the other end of described filter connects described motor B, described catchment channel A, catchment channel B, Rose Box is in the inside of described filter, and described water intake runs through described filter, described water intake on described Rose Box, described catchment channel A, one end of catchment channel B connects described water intake, described catchment channel A, the other end of catchment channel B connects described Rose Box, described filter plate in the inside of described Rose Box, described water purification mouth A, water purification mouth B, water purification mouth C is on described Rose Box, and described water purification mouth B is at described water purification mouth A, between water purification mouth C.
2. a kind of filter centrifugation pump according to claim 1, it is characterized in that: described filter connects described dewatering outlet, described dewatering outlet is in the inside of the described pump housing.
3. a kind of filter centrifugation pump according to claim 1, is characterized in that: described flow dontroller connects described motor B, filter.
4. a kind of filter centrifugation pump according to claim 1, is characterized in that: described filter seal connects the described pump housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520234246.5U CN204738973U (en) | 2015-04-16 | 2015-04-16 | Filter centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520234246.5U CN204738973U (en) | 2015-04-16 | 2015-04-16 | Filter centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204738973U true CN204738973U (en) | 2015-11-04 |
Family
ID=54420712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520234246.5U Expired - Fee Related CN204738973U (en) | 2015-04-16 | 2015-04-16 | Filter centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204738973U (en) |
-
2015
- 2015-04-16 CN CN201520234246.5U patent/CN204738973U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151104 Termination date: 20160416 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |