CN203297110U - Throttling sealing submersible pump - Google Patents
Throttling sealing submersible pump Download PDFInfo
- Publication number
- CN203297110U CN203297110U CN2013203553229U CN201320355322U CN203297110U CN 203297110 U CN203297110 U CN 203297110U CN 2013203553229 U CN2013203553229 U CN 2013203553229U CN 201320355322 U CN201320355322 U CN 201320355322U CN 203297110 U CN203297110 U CN 203297110U
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- CN
- China
- Prior art keywords
- pump
- cavity
- motor
- impeller
- throttling
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- Expired - Fee Related
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Abstract
The utility model provides a throttling sealing submersible pump comprising an upper cover component, a motor cavity, a motor, an oil chamber, a bearing, an impeller and a pump component. The upper cover component is used for sealing the upper end of the motor cavity. The motor is arranged in the motor cavity. The oil chamber is connected with the motor cavity. The motor is connected with the bearing. The bearing penetrates the motor cavity and the oil chamber to the pump component. The lower end of the bearing is connected with the impeller. The pump component comprises a pump, a pump cover and a pump cover sealing ring. The pump cover is used for sealing the oil chamber, and the pump cover, the pump cover sealing ring and the impeller form a cooling cavity. The bearing penetrates the cooling cavity, and a clearance is formed between the impeller and the pump cover sealing ring. By the aid of the throttling sealing submersible pump, the motor cavity is sealed, cooling water is provided for the bearing through the cooling cavity, pressure on the back of the impeller can be reduced during operation, and meanwhile, large pieces of dirt are prevented from stocking a cooling channel.
Description
Technical field
The utility model relates to the submersible pump field, particularly relates to a kind of throttling sealed submersible pump.
Background technique
The general work principle of existing submersible pump is: impeller High Rotation Speed, liquid wherein are along with blade rotates together, under the effect of centrifugal force, fly away from impeller and outwards penetrate, the liquid of ejaculation speed in the pump case explosion chamber is slack-off gradually, and pressure increases gradually, then from pump discharge, discharge tube flows out.At this moment, in the blade center, due to liquid, form the vacuum low-pressure district that not only there is no air but also there is no liquid around being thrown toward, liquid in liquid pool is under the atmospheric effect of pond face, in the suction pipe inflow pump, liquid is exactly so continuously from liquid pool, being pumped up and continuously from discharge tube, flowing out.
But motor produces a large amount of heats in work, need to carry out radiating treatment so that its normal operation to it.
Summary of the invention
In order to address the above problem, a kind of throttling sealed submersible pump that the utility model provides, it comprises cover assembly, motor cavity, motor, grease chamber, bearing, impeller and pump cover pump assembly, described cover assembly seals described motor cavity upper end, described motor is located in described motor cavity, described grease chamber is connected with described motor cavity, in described grease chamber, be full of cold oil, described motor is connected with described bearing, described bearing passes described motor cavity, grease chamber and extends downward in described pump assembly, and described bearing lower end is connected with described impeller;
Wherein, described pump assembly comprises the pump housing, pump cover and casing wear ring, described pump cover is connected with described grease chamber and described grease chamber is sealed, described casing wear ring is located at the bottom of described pump cover, described pump cover, casing wear ring and impeller form a cooling cavity, described bearing passes described cooling cavity, between described impeller and described casing wear ring, has a gap.
Preferably, described cover assembly comprises large handle and a power line.
Preferably, the described pump housing comprises an intake pipe, outlet pipe and the cavity that draws water, and described impeller is positioned at the described cavity that draws water.
Preferably, described intake pipe is provided with swirl reducting baffle.
Preferably, the rotor of described motor employing is copper bar.
Preferably, described cavity bottom is provided with drying equipment.
Preferably, the gap between described impeller and described casing wear ring is 0.3-0.8mm.
The utlity model has following beneficial effect:
The throttling sealed submersible pump that the utility model provides by in motor cavity sealing also by for the bearing in cooling cavity, providing cooling water gap is set between impeller and casing wear ring, the pressure at the impeller back side is reduced, the axial force that impeller is subject to is reduced, the pressure decreased of mechanical seal on bearing, prevent that simultaneously the bulk dirt from stopping up cooling channel.
Certainly, implement arbitrary product of the present invention and might not need to reach simultaneously above-described all advantages.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
The utility model provides a kind of throttling sealed submersible pump, it comprises cover assembly 1, motor cavity 2, motor 3, grease chamber 10, bearing 4, impeller 5 and pump cover pump assembly, cover assembly 1 is by the 2 upper end sealings of motor cavity, motor 3 is located in motor cavity 2, grease chamber 10 is connected with motor cavity 2, in grease chamber 10, is full of cold oil, and motor 3 is connected with bearing 4, bearing 4 passes motor cavity 2 and extends downward in pump assembly 6, and bearing 4 lower ends are connected with impeller 5;
Wherein, pump assembly comprises the pump housing 7, pump cover 8 and casing wear ring 9, pump cover 8 is connected with grease chamber 10 and grease chamber 10 is sealed, casing wear ring 9 is located at the bottom of pump cover 8, pump cover 8, casing wear ring 9 and impeller 5 form a cooling cavity, bearing 4 passes described cooling cavity, between impeller 5 and casing wear ring 9, has a gap.
in the present embodiment, gap between impeller 5 and casing wear ring 9 is uniform gap, and 0.3-0.8mm is located in this gap, flow through this gap upwards flow through motor housing by the holes in pump cover 8 and carry out cooling to motor of part high pressure liquid in pump assembly when work pump housing 7, by the planning to coolant flow channel, while making to flow, the Pressure Drop major part of liquid concentrates on the gap between impeller back side annulus and casing wear ring, the pressure at the impeller back side is reduced, the axial force that impeller is subject to is reduced, the pressure decreased of mechanical seal on bearing, prevent that simultaneously the bulk dirt from stopping up cooling channel.
Cover assembly 1 is placed water by the sealing of the upper end of motor cavity 2 and is worked from the interior motor 3 that affects of upper end inflow motor cavity 2, and cover assembly 1 also is provided with a handle, and this handle is located at the top of cover assembly 1, while being user-friendly to, moves this submersible pump; Cover assembly 1 also is provided with power line, and the motor 3 that the top of the sub-cover assembly of this power line leads in motor cavity 2 is motor 3 power supplies.Cover assembly 1 is connected with motor cavity 2 by screw, and concrete Placement the utility model is not done restriction, and the utility model is this linkage structure of tool example explanation only.Pump cover 8 seals the lower end of motor cavity 2, in order to guarantee the drying of motor cavity 2 lower ends, lower end in motor cavity 2 is provided with drying apparatus, the drying apparatus that adopts in the present embodiment is siccative, siccative keeps the drying of motor cavity 2 inside by absorb the moisture that enters in motor cavity 2 in pump cover 8 gaps, guarantees the normal operation of motor 3.
What the rotor of motor 3 adopted is copper bar, high working efficiency.Motor 3 is connected with bearing 4 and for bearing 4 provides driving force, bearing 4 rotates in pump assembly 6 in rotation impeller 5 under the driving of motor 3.
The pump housing 7 that the utility model provides comprises intake pipe, outlet pipe and the cavity that draws water, wherein intake pipe is located at the bottom of the pump housing 7, and it is shaped as horn-like, intake pipe also can be set to other shape, the utility model is not done restriction to it, and the present embodiment only illustrates; Outlet pipe is located at the side of the pump housing 7, and the cavity that draws water is located between intake pipe and outlet pipe, and the water that intake pipe enters flows out by outlet pipe after by the cavity that draws water.Impeller 5 is located in the cavity that draws water.Intake pipe also is provided with swirl reducting baffle, and this swirl reducting baffle is for improving the anti-cavitation performance of the pump housing 7.
The throttling sealed submersible pump that the utility model provides by in motor cavity sealing also by for the bearing in cooling cavity, providing cooling water gap is set between impeller and casing wear ring, the pressure at the impeller back side is reduced, the axial force that impeller is subject to is reduced, the pressure decreased of mechanical seal on bearing, prevent that simultaneously the bulk dirt from stopping up cooling channel.
Above embodiment is only be used to illustrating content of the present utility model, and except above-mentioned mode of execution, the utility model also has other mode of execution, and all employings are equal to replaces or technological scheme that the equivalent deformation mode forms all drops in protection domain of the present utility model.
Claims (8)
1. throttling sealed submersible pump, it is characterized in that, comprise cover assembly, motor cavity, motor, grease chamber, bearing, impeller and pump assembly, described cover assembly seals described motor cavity upper end, described motor is located in described motor cavity, described grease chamber is connected with described motor cavity, in described grease chamber, be full of cold oil, described motor is connected with described bearing, described bearing passes described motor cavity, grease chamber and extends downward in described pump assembly, and described bearing lower end is connected with described impeller;
Wherein, described pump assembly comprises the pump housing, pump cover and casing wear ring, described pump cover is connected with described grease chamber and described grease chamber is sealed, described casing wear ring is located at the bottom of described pump cover, described pump cover, casing wear ring and impeller form a cooling cavity, described bearing passes described cooling cavity, between described impeller and described casing wear ring, has a gap.
2. throttling sealed submersible pump as claimed in claim 1, is characterized in that, described cover assembly comprises large handle and a power line.
3. throttling sealed submersible pump as claimed in claim 1, is characterized in that, described cover assembly is connected by screw with described cavity.
4. throttling sealed submersible pump as claimed in claim 1, is characterized in that, the described pump housing comprises an intake pipe, outlet pipe and the cavity that draws water, and described impeller is positioned at the described cavity that draws water.
5. throttling sealed submersible pump as claimed in claim 4, is characterized in that, described intake pipe is provided with swirl reducting baffle.
6. throttling sealed submersible pump as claimed in claim 1, is characterized in that, the rotor that described motor adopts is copper bar.
7. throttling sealed submersible pump as claimed in claim 1, is characterized in that, described cavity bottom is provided with drying equipment.
8. throttling sealed submersible pump as claimed in claim 1, is characterized in that, the gap between described impeller and described casing wear ring is 0.3-0.8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203553229U CN203297110U (en) | 2013-06-20 | 2013-06-20 | Throttling sealing submersible pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203553229U CN203297110U (en) | 2013-06-20 | 2013-06-20 | Throttling sealing submersible pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203297110U true CN203297110U (en) | 2013-11-20 |
Family
ID=49573121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203553229U Expired - Fee Related CN203297110U (en) | 2013-06-20 | 2013-06-20 | Throttling sealing submersible pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203297110U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671134A (en) * | 2013-11-28 | 2014-03-26 | 成都欧浦特控制阀门有限公司 | Non-blockage fixed blowdown submersible pump |
-
2013
- 2013-06-20 CN CN2013203553229U patent/CN203297110U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671134A (en) * | 2013-11-28 | 2014-03-26 | 成都欧浦特控制阀门有限公司 | Non-blockage fixed blowdown submersible pump |
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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: 20131120 Termination date: 20150620 |
|
| EXPY | Termination of patent right or utility model |