CN201318312Y - Water-filling submersible electric pump - Google Patents
Water-filling submersible electric pump Download PDFInfo
- Publication number
- CN201318312Y CN201318312Y CNU2008202295303U CN200820229530U CN201318312Y CN 201318312 Y CN201318312 Y CN 201318312Y CN U2008202295303 U CNU2008202295303 U CN U2008202295303U CN 200820229530 U CN200820229530 U CN 200820229530U CN 201318312 Y CN201318312 Y CN 201318312Y
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- Prior art keywords
- seal
- labyrinth
- submerged motor
- water
- ring
- 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
Links
- 238000007789 sealing Methods 0.000 claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000012856 packing Methods 0.000 claims abstract description 15
- 230000008859 change Effects 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 239000006260 foam Substances 0.000 claims description 4
- 230000011218 segmentation Effects 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 4
- 239000004576 sand Substances 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 210000004907 gland Anatomy 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000009287 sand filtration Methods 0.000 description 2
- 238000012271 agricultural production Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009189 diving Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a water-filling submersible electric pump, which comprises a motor, a pump, a sealing device which is arranged on the shaft end of the motor and a motor casing, wherein the sealing device on the shaft end comprises a framework seal, and the outer side of the framework seal is further provided with a labyrinth type seal. The water-filling submersible electric pump has the advantages that the water-filling submersible electric pump adopts the modes of labyrinth type seal, framework seal and packing seal, wherein the labyrinth type seal forms a seal vortex which effectively prevents foreign materials such as sand and the like from entering, and achieves no power consumption seal, the framework seal reliably prevents inner water from outwards flowing and outer water from infiltrating, and the packing seal filters micro sands which accidently enter and prevents the micro sands from entering a cavity body. The three layers of seal devices can protect layer upon layer, and when one layer is damaged, another one or two can protect.
Description
Technical field
The utility model relates to a kind of Submerged Motor Pumps, particularly a kind of Water Submerged Motor Pumps.
Background technique
Submerged Motor Pumps is the be connected as a single entity electric pump unit of the work of diving beneath the water of a kind of motor and pump, and it has advantage easy to install, mainly is applicable to occasions such as shallow well, river, water channel, is widely used in fields such as field irrigation, draining.All bringing into play enormous function in fields such as industrial and agricultural production, urban construction, domestic lifes.The sealing of existing flushing type Submerged Motor Pumps, the submersible motor inner chamber must be full of clear water, and submersible motor is operated under water, and the shaft extension of motor goes out to adopt suitable seal, guarantee that the water in the cavity can not leak, guarantee that outside sewage and silt can not enter into cavity.Traditional sealing means mainly is to adopt rubber oil seal with reinforce or mechanical seal to reach the effect of sealing, simple employing reinforced seal or mechanical seal, in case reinforced seal or mechanical seal are damaged, owing to there are not other protective measures, therefore might directly damage motor, and can't remedy.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art part, and provide a kind of and have multiple-protection, protection effect is good, Water Submerged Motor Pumps simple in structure.
The Water Submerged Motor Pumps comprises motor, pump, is positioned at the seal arrangement of motor shaft end, electric machine casing, and its structure outline is: described shaft end seal device comprises reinforced seal, also is provided with labyrinth sealing in the outside of reinforced seal.
The utility model is introduced labyrinth-type excluder in the Water Submerged Motor Pumps, the use of connecting with skeleton sealing, even make one of them bad seals of this Water Submerged Motor Pumps so on the one hand, also have another road sealing to play protective action, the opposing party adopts labyrinth gland, because labyrinth-type excluder has the change gap structure, when current are flowed through less taking advantage of a loophole, be subjected to throttling action one time, the pressure and temperature of current descends, and flow velocity increases.Current enter big cavity again after too small gap.Current increase suddenly at big cavity internal volume, form very strong vortex, and water velocity no better than zero in the big a lot of cavity of volume ratio clearance volume, and pressure but gos up seldom, can think pressure when flowed through in the slit in maintenance.Current are every through gap and big cavity subsequently, and current just are subjected to a throttling and dilatation.After current became gap structure through sealing, its pressure was reduced to p2 by p1, and along with pressure reduces, current leak and reduce.By said process as can be known, labyrinth seal is to utilize the increase local losses to stop the current direction external leakage with the method that consumes its energy, and therefore, it belongs to flow resistance shape non-contact motive sealing.Therefore it can well play seal action, can prolong the life-span of labyrinth-type excluder simultaneously again.
Described labyrinth-type excluder comprises labyrinth stationary ring and labyrinth rotating ring, and labyrinth stationary ring and the corresponding face of labyrinth rotating ring are provided with the change inter space device, and the labyrinth stationary ring matches with electric motor end cap, and labyrinth rotating ring and motor shaft match to merge and do high-speed motion with axle.
Realize by the sealing tooth is set on labyrinth rotating ring and labyrinth stationary ring in change gap between described labyrinth rotating ring and the labyrinth stationary ring.
Described sealing tooth is projection and the groove on the gap that is arranged between labyrinth rotating ring and the labyrinth stationary ring.
Described seal arrangement also includes packing seal, and it is arranged at the inboard of reinforced seal.
Described packing seal is a foam body.
The little sand filtration that utilizes foam body to filter to come in occasionally also stops it to enter the motor cavity.
The utility model is that also the housing of described submersible electric pump motor axially is made of the small shell more than two sections or two sections along it, adopts link to be connected between the housing.
The cast-in-block housing changed into by several segmentations constitute, like this when internals such as installation rotor, stator, can install at small shell as required, again each piece housing be connected after installing, thereby make very simple and convenient of installation of this motor.
Describedly be threaded or connect or connect or be threaded for bolt for double-screw bolt for linking up with to add.
Described housing constitutes by three sections.
The both ends of the surface of the housing in described stage casing are provided with shoulder block, and upper and lower two sections housing is stuck on this shoulder block.
Described stator and rotor are arranged at the stage casing of housing.
Described housing is for to be made of the segmentation steel pipe.
Adopt the segmented steel pipe, can alleviate the weight of whole Submerged Motor Pumps, simplify the volume of Submerged Motor Pumps.
The utility model further also is
Submerged Motor Pumps axle head screw threads for fastening connects and seal arrangement, comprise and being threaded, be threaded and include packing ring, bolt or double-screw bolt, its structure outline is: described being threaded is provided with the big flat washer sheet between the junction plane that also is included in packing ring and end cap, be provided with the gap at big flat washer between flat and bolt or big flat washer sheet and the double-screw bolt, in the gap, be filled with seal ring, be provided with little flat gasket between big flat washer and pad, the external diameter of described little flat gasket is greater than the internal diameter of big flat washer sheet and be pressed on the big flat washer sheet.
The axle head screw threads for fastening of this structure connects and seal arrangement, by in original being threaded, having set up the large and small flat gasket of a cover, and insert seal ring in the gap between big flat washer sheet and bolt or double-screw bolt, and little flat gasket is pressed on the big flat washer sheet, thereby can guarantee that axle head is threaded to the requirement of end axial surface.Therefore need not to carry out the flat processing of ream, can guarantee good connection and sealing effect again at casing axle head junction plane place.
Seal ring between described big flat washer sheet and bolt or the double-screw bolt is O-ring seals or rubber like circle.
Described packing ring or be elastic washer or for plain washer.
In sum, advantage of the present utility model is:
The utility model employing labyrinth sealing adds bone and adds the gland sealed form that is sealed with, labyrinth sealing forms a sealing vortex, foreign matters such as effective prevention grains of sand enter, realized no power consumption sealing, skeleton reliable sealing stops leaking of internal water, with the infiltration of outside water, little sand filtration that packing seal will be come in once in a while also stops it to enter cavity.More than the seal arrangement of three levels, can set up defenses in depth, even if one of them damages, also have other one or two to protect.Because the utility model constitutes by housing is changed into along its axial several sections by original integrated type, can make things convenient for the installation of housing inner chamber rotor and stator like this, thereby make that its maintenance is all very convenient with production.Also housing is made of steel pipe simultaneously, can alleviates the weight of housing like this, also can simplify generation simultaneously, reduce production costs, enhance productivity.Simultaneously because the utility model also passes through to add a cover by large and small flat gasket in original thread connects, i.e. seal ring between the big flat washer sheet, and little flat gasket is pressed on the big flat washer sheet, thereby can guarantee that the casing axial screw thread connects connecting the requirement on surface.Therefore need not to carry out the flat processing of ream, can guarantee good connection and sealing effect again at the axial junction plane of casing place.
Attached circle explanation
Fig. 1 is the utility model embodiment's a Submerged Motor Pumps structural representation
Fig. 2 is the utility model embodiment's a Submerged Motor Pumps shaft end seal device structural representation
Fig. 3 is that embodiment's Submerged Motor Pumps axle head screw threads for fastening connects and schematic diagram of sealing device
Fig. 4 is the structural representation of electric machine casing of embodiment's Submerged Motor Pumps
Label declaration 1 pump, 2 motors, 21 motor shafts, 3 electric machine casings, 31 epimeres, 32 stage casings, 321 shoulder blocks, 33 hypomeres, 4 motor shaft end seal devices, 41 reinforced seals, 42 labyrinth sealings, 421 labyrinth stationary ring 422 labyrinth rotating ring 423 sealing tooth 43 packing seals 5 axle head screw threads for fastening connect and seal arrangement 51 bolts 52 nuts 53 elastic washers 540 shape seal rings 55 big flat washer sheets 56 small pieces pads 6 end caps
Embodiment
Below in conjunction with embodiment the utility model is described in more detail.
Embodiment 1
A kind of Water Submerged Motor Pumps as shown in Figure 1, comprise pump 1, motor 2 and electric machine casing 21, described pump is positioned at motor top, motor is positioned at the bottom, axle head at motor is provided with shaft end seal device 4, and axle head connects and to be provided with between end cap and the electric machine casing that the axle head screw threads for fastening is connected and seal arrangement 5.
The shaft end seal device 4 of Submerged Motor Pumps as shown in Figure 2, described shaft end seal device comprises reinforced seal 41, also is provided with labyrinth sealing 42 in the outside of reinforced seal, is arranged at the packing seal 43 of reinforced seal inboard.Described reinforced seal is a rubber oil seal with reinforce.The sealing of described labyrinth sealing for constituting by labyrinth rotating ring 422 and labyrinth stationary ring 421, labyrinth rotating ring wherein cooperates with motor shaft 21, along with axle is done and is run up, the labyrinth stationary ring is fixed in electric motor end cap 6, be provided with the change gap structure between labyrinth rotating ring and the labyrinth stationary ring, sealing tooth 423 formations that described change gap structure is served as reasons and is arranged at labyrinth rotating ring and labyrinth stationary ring.Described sealing tooth is to be arranged at by projection and groove on the gap between labyrinth rotating ring and the labyrinth stationary ring to constitute.Described packing seal is for filtering the foam body sealing.
Submerged Motor Pumps axle head screw threads for fastening connects and seal arrangement 5 as shown in Figure 3, comprises bolt 51, nut 52, elastic washer 53, O-ring seals 54, big flat washer sheet 55, little flat gasket 56.Described bolt connects end cap 6 and electric machine casing 3, the big flat washer sheet contacts with end cap 6, insert O-ring seals 54 in the gap between big flat washer sheet and bolt 51, above big flat washer sheet and seal ring, press little flat gasket, then again with spring washer and nut check
The electric machine casing 3 of Submerged Motor Pumps as shown in Figure 4, it is for axially to be made of 3 stops along it, and housing is made of steel pipe.Both ends of the surface on middle piece housing 32 are provided with retaining shoulder block 321, with convenient last 31, the installation of 33 two-piece housings down, adopt the double-screw bolt connection between each piece housing.
It is same as the prior art that present embodiment is not stated part.
Claims (11)
1. Water Submerged Motor Pumps, comprise motor (2), pump (1), be positioned at the seal arrangement (4) of motor shaft end, electric machine casing (3), it is characterized in that: described shaft end seal device comprises reinforced seal (41), also is provided with labyrinth sealing (42) in the outside of reinforced seal.
2. Water Submerged Motor Pumps according to claim 1, it is characterized in that: described labyrinth-type excluder comprises labyrinth stationary ring (421) and labyrinth rotating ring (422), labyrinth stationary ring and the corresponding face of labyrinth rotating ring are provided with the change inter space device, the labyrinth stationary ring matches with electric motor end cap (6), and labyrinth rotating ring and motor shaft (21) match to merge and do high-speed motion with axle.
3. Water Submerged Motor Pumps according to claim 2 is characterized in that: realize by sealing tooth (423) is set on labyrinth rotating ring and labyrinth stationary ring in the change gap between described labyrinth rotating ring and the labyrinth stationary ring.
4. Water Submerged Motor Pumps according to claim 3 is characterized in that: described sealing tooth is projection and the groove on the gap that is arranged between labyrinth rotating ring and the labyrinth stationary ring.
5. Water Submerged Motor Pumps according to claim 1 is characterized in that: described seal arrangement also includes packing seal (43), and it is arranged at the inboard of reinforced seal.
6. Water Submerged Motor Pumps according to claim 5 is characterized in that: described packing seal is a foam body.
7. Water Submerged Motor Pumps according to claim 1 is characterized in that: the housing of described submersible electric pump motor (3) axially is made of the small shell more than two sections or two sections along it, adopts link to be connected between the housing.
8. Water Submerged Motor Pumps according to claim 7 is characterized in that: described link is a threaded connector, itself or connect or be the bolt connection for double-screw bolt.
9. Water Submerged Motor Pumps according to claim 7, it is characterized in that: described housing constitutes by three sections, the both ends of the surface of the housing in described stage casing (32) are provided with shoulder block, go up (31), descend (33) two sections housing to be stuck in this shoulder block (321), described stator and rotor are arranged at the stage casing of housing.
10. Water Submerged Motor Pumps according to claim 7 is characterized in that: described housing is for to be made of the segmentation steel pipe.
11. according to claim 1 or 7 described Water Submerged Motor Pumpss, it is characterized in that: described Submerged Motor Pumps also includes the axle head screw threads for fastening and connects and seal arrangement (5), comprise and being threaded, be threaded and include packing ring (53), bolt (51) or double-screw bolt, described being threaded is provided with big flat washer sheet (55) between the junction plane that also is included in packing ring and end cap, be provided with the gap at big flat washer between flat and bolt or big flat washer sheet and the double-screw bolt, in the gap, be filled with seal ring (54), be provided with little flat gasket (56) between big flat washer and pad, the external diameter of described little flat gasket is greater than the internal diameter of big flat washer sheet and be pressed on the big flat washer sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202295303U CN201318312Y (en) | 2008-12-24 | 2008-12-24 | Water-filling submersible electric pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202295303U CN201318312Y (en) | 2008-12-24 | 2008-12-24 | Water-filling submersible electric pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201318312Y true CN201318312Y (en) | 2009-09-30 |
Family
ID=41197077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202295303U Expired - Fee Related CN201318312Y (en) | 2008-12-24 | 2008-12-24 | Water-filling submersible electric pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201318312Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438020A (en) * | 2013-09-02 | 2013-12-11 | 王子新 | Seal device for overwater submerged pump |
| CN110529402A (en) * | 2019-08-14 | 2019-12-03 | 湖南伟玛集团有限公司 | A kind of middling speed Multi-stage centrifugal fan |
-
2008
- 2008-12-24 CN CNU2008202295303U patent/CN201318312Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438020A (en) * | 2013-09-02 | 2013-12-11 | 王子新 | Seal device for overwater submerged pump |
| CN103438020B (en) * | 2013-09-02 | 2017-01-11 | 王子新 | Seal device for overwater submerged pump |
| CN110529402A (en) * | 2019-08-14 | 2019-12-03 | 湖南伟玛集团有限公司 | A kind of middling speed Multi-stage centrifugal fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: FUAN YUANDONG AMERICAN CHINA ELECTRIC CO.,LTD. Free format text: FORMER OWNER: FUJIAN YUANDONG ELECTRIC MOTOR GROUP CO., LTD. Effective date: 20100909 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 350005 5/F, BUILDING 2, SCIENCE RESEARCH BUILDING, MACHINERY RESEARCH INSTITUTE, NO.115, LIUYI MIDDLE ROAD, SHUIBU STREET, GULOU DISTRICT, FUZHOU CITY, FUJIAN PROVINCE TO: 355000 QINXIYANG INDUSTRIAL PARK DISTRICT, FU'AN CITY, FUJIAN PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100909 Address after: 355000 Fujian city of Fu'an Province Qin small stream foreign industrial park Patentee after: Fuan Yuandong American China Electric Co., Ltd. Address before: Water Street 61 Road, Gulou District of Fuzhou city in Fujian province 350005 No. 115 Machinery Research Institute of medical research building (Building 2) fifth Patentee before: Fujian Yuandong Electric Motor Group Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090930 Termination date: 20151224 |
|
| EXPY | Termination of patent right or utility model |