CN204553243U - A kind of centrifugal pump that can not leak - Google Patents
A kind of centrifugal pump that can not leak Download PDFInfo
- Publication number
- CN204553243U CN204553243U CN201520233005.9U CN201520233005U CN204553243U CN 204553243 U CN204553243 U CN 204553243U CN 201520233005 U CN201520233005 U CN 201520233005U CN 204553243 U CN204553243 U CN 204553243U
- Authority
- CN
- China
- Prior art keywords
- machine envelope
- machine
- washing solution
- impeller
- pump housing
- 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.)
- Expired - Fee Related
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model provides a kind of centrifugal pump that can not leak, comprise base, the pump housing, impeller and motor, the described pump housing and motor are located on base, described motor is provided with main shaft, described impeller to be arranged in the pump housing and to be connected with one end of main shaft, described main shaft is provided with mechanical seal device, it is characterized in that described base bottom both sides are provided with movable pulley, described mechanical seal device comprises axle sleeve, machine envelope stationary ring and machine envelope rotating ring is connected in the outer cover of axle sleeve, machine envelope stationary seat is connected at machine envelope stationary ring and machine envelope rotating ring outer cover, machine envelope stationary seat one end is provided with machine envelope washing solution entrance, machine envelope stationary seat seals the relative one end of washing solution entrance to be provided with machine and to seal washing solution with machine and export, described impeller comprises front shroud, back shroud, wheel hub and blade, described front shroud is connected with arc block plate, the utility model not only can facilitate movement, and can not leak, also the not good and vibration caused of dynamic balancing because of impeller can not be there is, the phenomenon such as noise and cavitation erosion.
Description
Technical field
The utility model relates to a kind of centrifugal pump.
Background technique
Existing centrifugal pump comprises base, the pump housing, impeller and motor, and the described pump housing and motor are located on base, and described motor is provided with main shaft, and described impeller to be arranged in the pump housing and to be connected with one end of main shaft, and described main shaft is provided with mechanical seal device.Existing centrifugal pump has the following disadvantages: one is because the weight of the pump housing is large, mobile very inconvenient; Two is that existing mechanical seal device easily produces leakage problem, affects environment; Three is that existing dynamic balance of impeller is not good, easily vibrates, noise, the phenomenons such as cavitation erosion.
Model utility content
The purpose of this utility model provides a kind of centrifugal pump for above-mentioned situation exactly, and this centrifugal pump not only can facilitate movement, and can not leak, and the not good and vibration caused of dynamic balancing because of impeller also can not occur, the phenomenon such as noise and cavitation erosion.The purpose of this utility model realizes by following scheme: a kind of centrifugal pump that can not leak, comprise base, the pump housing, impeller and motor, the described pump housing and motor are located on base, described motor is provided with main shaft, described impeller to be arranged in the pump housing and to be connected with one end of main shaft, described main shaft is provided with mechanical seal device, it is characterized in that described base bottom both sides are provided with movable pulley, is convenient to mobile, described mechanical seal device comprises axle sleeve, machine envelope stationary ring and machine envelope rotating ring is connected in the outer cover of axle sleeve, form friction pair, machine envelope stationary seat is connected at machine envelope stationary ring and machine envelope rotating ring outer cover, machine envelope stationary seat one end is provided with machine envelope washing solution entrance, described machine envelope washing solution ingress is provided with throttle, machine envelope stationary seat seals the relative one end of washing solution entrance to be provided with machine and to seal washing solution with machine and export, the outlet of machine envelope washing solution is connected to pump housing ingress by reflux pipeline, machine envelope rotating ring seals rotating seat by 6-8 flexible compensation springs and machine and is connected, machine envelope rotating seat is socketed in axle sleeve outside, the utility model mechanical seal rinsing liquid is ingress engine envelope washing solution entrance after throttle throttling, dynamic from machine envelope washing solution entrance ingress engine envelope, the friction pair chamber that stationary ring is formed, for friction pair plays cooling, lubrication, the machine envelope washing solution outlet that machine envelope stationary seat opposite side is arranged can make mechanical seal reflux liquid introduce the entrance of the pump housing from here through reflux pipeline, because pump housing entrance is negative pressure, easy realization backflow, ensure that mechanical seal is not because causing mechanical seal leakage when negative pressure pump shaft vibration causes friction pair to depart from, described impeller comprises front shroud, back shroud, wheel hub and blade, together with described front shroud is fixedly connected by welding with back shroud, described wheel hub is provided with keyway, and between front shroud and back shroud, described blade has seven, and be evenly distributed in the cavity between front shroud and back shroud along the circumference of described wheel hub, described blade comprises rotary part and cutting part, in described rotary part stationary hub, by wheel hub driven rotary, described cutting part comprises front end and tail end, described tail end is fixedly connected with rotary part, and extend with an arching trajectory forward end, described front shroud is connected with arc block plate, described arc block plate has four, and be evenly arranged in inlet along the circumference of import, a runner is provided with between every adjacent blades, described back shroud is provided with equalizing orifice, described equalizing orifice is connected with described runner, the thickness of the described blade tail end from the front end of cutting part to rotary part increases progressively, this impeller is by arranging arc block plate entering water inlet, current are by out-of-date, whirlpool is produced near arc block plate, effectively prevent in air ingoing stream, decrease the generation of cavitation phenomenon, equalizing orifice can balance the axial force that vane rotary produces, solve the not good vibration easily caused of dynamic balancing because of impeller, noise and cavitation phenomenon.The utility model not only can facilitate movement, and can not leak, and the not good and vibration caused of dynamic balancing because of impeller also can not occur, the phenomenon such as noise and cavitation erosion.
Accompanying drawing explanation
Fig. 1, the utility model structural representation.
Fig. 2, mechanical seal device structural representation.
Fig. 3, blade wheel structure schematic diagram.
Fig. 4, impeller perspective view.
Embodiment
Fig. 1, Fig. 2, Fig. 3, Fig. 4 are known in contrast, a kind of centrifugal pump that can not leak, comprise base 1, the pump housing 2, impeller 3 and motor 4, the described pump housing and motor are located on base, described motor is provided with main shaft 5, described impeller to be arranged in the pump housing and to be connected with one end of main shaft, and described main shaft is provided with mechanical seal device 6, it is characterized in that described base bottom both sides are provided with movable pulley 7, described mechanical seal device comprises axle sleeve 8, machine envelope stationary ring 9 and machine envelope rotating ring 10 is connected in the outer cover of axle sleeve, form friction pair, machine envelope stationary seat 11 is connected at machine envelope stationary ring and machine envelope rotating ring outer cover, machine envelope stationary seat one end is provided with machine envelope washing solution entrance 12, described machine envelope washing solution ingress is provided with throttle, machine envelope stationary seat seals the relative one end of washing solution entrance to be provided with machine and to seal washing solution with machine and export 13, the outlet of machine envelope washing solution is connected to pump housing ingress by reflux pipeline, machine envelope rotating ring seals rotating seat 15 by 6-8 flexible compensation springs 14 with machine and is connected, machine envelope rotating seat is socketed in axle sleeve outside, described impeller comprises front shroud 16, back shroud 17, wheel hub 18 and blade 19, together with described front shroud is fixedly connected by welding with back shroud, described wheel hub is provided with keyway 20, and between front shroud and back shroud, described blade has seven, and be evenly distributed in the cavity between front shroud and back shroud along the circumference of described wheel hub, described blade comprises rotary part 21 and cutting part 22, in described rotary part stationary hub, described cutting part comprises front end and tail end, described tail end is fixedly connected with rotary part and extends with an arching trajectory forward end, described front shroud is connected with arc block plate 23, described arc block plate has four, and be evenly arranged in inlet along the circumference of import, a runner 24 is provided with between every adjacent blades, described back shroud is provided with equalizing orifice 25, described equalizing orifice is connected with described runner, the thickness of the described blade tail end from the front end of cutting part to rotary part increases progressively.
Claims (1)
1. the centrifugal pump that can not leak, comprise base (1), the pump housing (2), impeller (3) and motor (4), the described pump housing and motor are located on base, described motor is provided with main shaft (5), described impeller to be arranged in the pump housing and to be connected with one end of main shaft, described main shaft is provided with mechanical seal device (6), it is characterized in that described base bottom both sides are provided with movable pulley (7), described mechanical seal device comprises axle sleeve (8), machine envelope stationary ring (9) and machine envelope rotating ring (10) is connected in the outer cover of axle sleeve, form friction pair, machine envelope stationary seat (11) is connected at machine envelope stationary ring and machine envelope rotating ring outer cover, machine envelope stationary seat one end is provided with machine envelope washing solution entrance (12), described machine envelope washing solution ingress is provided with throttle, machine envelope stationary seat seals the relative one end of washing solution entrance to be provided with machine and to seal washing solution with machine and export (13), the outlet of machine envelope washing solution is connected to pump housing ingress by reflux pipeline, machine envelope rotating ring seals rotating seat (15) by 6-8 flexible compensation springs (14) with machine and is connected, machine envelope rotating seat is socketed in axle sleeve outside, described impeller comprises front shroud (16), back shroud (17), wheel hub (18) and blade (19), together with described front shroud is fixedly connected by welding with back shroud, described wheel hub is provided with keyway (20), and between front shroud and back shroud, described blade has seven, and be evenly distributed in the cavity between front shroud and back shroud along the circumference of described wheel hub, described blade comprises rotary part (21) and cutting part (22), in described rotary part stationary hub, described cutting part comprises front end and tail end, described tail end is fixedly connected with rotary part and extends with an arching trajectory forward end, described front shroud is connected with arc block plate (23), described arc block plate has four, and be evenly arranged in inlet along the circumference of import, a runner (24) is provided with between every adjacent blades, described back shroud is provided with equalizing orifice (25), described equalizing orifice is connected with described runner, the thickness of the described blade tail end from the front end of cutting part to rotary part increases progressively.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201520233005.9U CN204553243U (en) | 2015-04-17 | 2015-04-17 | A kind of centrifugal pump that can not leak |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201520233005.9U CN204553243U (en) | 2015-04-17 | 2015-04-17 | A kind of centrifugal pump that can not leak |
Publications (1)
Publication Number | Publication Date |
---|---|
CN204553243U true CN204553243U (en) | 2015-08-12 |
Family
ID=53828364
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201520233005.9U Expired - Fee Related CN204553243U (en) | 2015-04-17 | 2015-04-17 | A kind of centrifugal pump that can not leak |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN204553243U (en) |
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2015
- 2015-04-17 CN CN201520233005.9U patent/CN204553243U/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 | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150812 Termination date: 20160417 |