CN201273288Y - Submersible sewage electric pump with improved operation reliability - Google Patents
Submersible sewage electric pump with improved operation reliability Download PDFInfo
- Publication number
- CN201273288Y CN201273288Y CNU2008200386242U CN200820038624U CN201273288Y CN 201273288 Y CN201273288 Y CN 201273288Y CN U2008200386242 U CNU2008200386242 U CN U2008200386242U CN 200820038624 U CN200820038624 U CN 200820038624U CN 201273288 Y CN201273288 Y CN 201273288Y
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- China
- Prior art keywords
- pump
- submersible
- motor
- impeller
- electric motor
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- Expired - Fee Related
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Abstract
The utility model relates to a submersible sewage electric motor which efficiently improves the operating reliability of a submersible sewage electric motor, which is characterized in that a submersible motor is arranged on the upper portion of the submersible sewage electric motor, a cooling water sleeve is coated on the periphery of a submersible motor, a conduit is communicated with a pump casing and the cooling water sleeve, an impeller is connected with the submersible motor through a rotary shaft, a medium inlet is arranged on the middle portion of mechanical seal and the impeller, the submersible motor is supported and connected on the pump casing through a water inlet node, and the pump cover and the pump casing are combined to be a pump work pressure cavity. The submersible sewage electric motor has the advantages of overcoming the shortcomings of the prior art, improving the use reliability and the service span of the mechanical seal under the circumstance without lowering product operating efficiency, thereby reaching high-effective long-term stable operation of products. The submersible sewage electric motor is not provided with an auxiliary impeller which does useless work, which leads the unit efficiency of products to be improved, saves energy, reduces auxiliary impellers of fittings, leads the production cost of products to be lowered, and has no failure factors of the auxiliary impeller after abrading in medium, thereby greatly lowering the use failure rate of products.
Description
Technical field
The utility model relates to a kind of diving sewage water electric pump of efficient raising diving sewage water electric pump operational reliability.Belong to diving sewage water electric pump technical field.
Background technique
Existing diving sewage water electric pump product, its reliability of operation depends on the life-span of mechanical seal to a great extent.What this series products adopted all is the twice single mechanical end face seal basically, the pressure medium direction is identical with mechanical seal spring pressure direction, mechanical seal works in the sewage medium, this type of pump, because particle is to the abrasion of machine envelope in the sewage, corrosion is easy to cause the damage of machine envelope and leak in motor to machine envelope part to reach the sewage medium, causes the pump cisco unity malfunction.Another kind of diving sewage water electric pump has adopted double mechanical seal one, the machine envelope is placed airtight grease chamber, and do not contact with the sewage medium, but because the pressure medium direction is opposite with machine envelope spring pressure direction, be easy to damage for high-head pump machine envelope.In order to reduce the backpressure that the machine envelope is born, the designer has designed sub-propeller, though sub-propeller can reduce the backpressure of machine envelope, must consume suitable power, causes the low poor efficiency high energy consumption product that becomes of pump group working efficiency.
Summary of the invention
The utility model proposes a kind of diving sewage water electric pump of efficient raising diving sewage water electric pump operational reliability.Be intended to overcome existing in prior technology and cause the damage of machine envelope easily and in motor, leak, high-head pump machine envelope rapid wear, defective such as power consumption is big.Under the situation that does not reduce the product operational efficiency, improve the operational safety and the life-span of mechanical seal, thereby reach the operation efficient steady in a long-term of product.
Technical solution of the present utility model: its structure is that the structure of diving sewage water electric pump is the top that submersible motor is positioned at the diving sewage water electric pump, cooling jacket be enclosed in submersible motor around, conduit is communicated with pump case and cooling jacket, thereby can make MEDIA FLOW through motor outer surface cooling motor.Impeller is connected with submersible motor by rotating shaft, leak the mechanical seal that entered design of electrical motor for preventing the external agency rotating shaft, the medium inlet is positioned at the neutral position of mechanical seal and impeller, submersible motor supports and is connected on the pump case by the water inlet joint, and pump cover and pump case are combined to form the pump work pressure chamber.
Improve diving sewage water electric pump operational reliability and adopted the double mechanical seal that places good operate outside environment grease chamber together, with water inlet change into place the neutral position water inlet that motor is connected with pump portion after, the backpressure that makes mechanical seal only is the product depth pressure that pulls the plug, thereby need not to increase the sub-propeller of highly energy-consuming.
Advantage of the present utility model: the defective that has overcome prior art.Under the situation that does not reduce the product operational efficiency, improve the operational safety and the life-span of mechanical seal, thereby reach the operation efficient steady in a long-term of product.Do not had to do the sub-propeller of idle work, made the unit efficiency of product be improved energy saving; Reduced the part sub-propeller, production cost of products is descended; Do not had because of the failure factor after the wearing and tearing of sub-propeller in medium, thereby greatly reduced product operational failure rate.
Description of drawings
Accompanying drawing 1 is the structural representation of diving sewage water electric pump.
Among the figure 1 is submersible motor, the 2nd, cooling jacket, the 3rd, and mechanical seal, the 4th, conduit, the 5th advances water joint, the 6th, rotating shaft, the 7th, impeller, the 8th, pump cover, the 9th, pump case, the 10th, medium inlet, the 11st, media outlet, the 12nd, impeller eye.
Embodiment
Contrast accompanying drawing 1, its structure comprises submersible motor 1, cooling jacket 2, mechanical seal, conduit 4, water inlet joint 5, rotating shaft 6, impeller 7, pump cover 8, pump case 9, wherein submersible motor 1 is positioned at the top of diving sewage water electric pump, cooling jacket 2 be enclosed in submersible motor 1 around, conduit 4 is communicated with pump case 9 and cooling jacket 2, thereby can make MEDIA FLOW through motor outer surface cooling motor.Impeller 7 is connected with submersible motor 1 by rotating shaft 6, leak the mechanical seal 3 that entered design of electrical motor for preventing the external agency rotating shaft, medium inlet 10 is positioned at the neutral position of mechanical seal 3 and impeller 7, submersible motor 1 supports and is connected on the pump case 9 by water inlet joint 5, and pump cover 8 is combined to form the pump work pressure chamber with pump case 9.
The essential distinction of the utility model and existing product has been to change the position of medium inlet, bottom by existing product changes to the neutral position that is positioned at mechanical seal and impeller, thereby make the Way in of impeller opposite fully, so just can remove the sub-propeller of existing product, and make mechanical seal no longer bear the pump chamber working pressure opposite, thereby reach the goal of the invention of efficient raising submerged sewage pump operational reliability with its spring force direction.
The utility model be exactly adopted put together with good operate outside environment grease chamber in double mechanical seal, with water inlet change into place the neutral position water inlet that motor is connected with pump portion after, just make the backpressure of mechanical seal only be the pull the plug pressure (this pressure is very little) of the degree of depth of product, thereby need not to increase the sub-propeller of highly energy-consuming, reliable running life of prolonged mechanical sealing greatly just, thus realize the operation of product long-term stability.And improved the whole utilization efficiency of product.
Claims (1)
1, improves the diving sewage water electric pump of operational reliability, it is characterized in that submersible motor is positioned at the top of diving sewage water electric pump, cooling jacket be enclosed in submersible motor around, conduit is communicated with pump case and cooling jacket, impeller is connected with submersible motor by rotating shaft, the medium inlet is positioned at the neutral position of mechanical seal and impeller, and submersible motor supports and is connected on the pump case by the water inlet joint, and pump cover and pump case are combined to form the pump work pressure chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200386242U CN201273288Y (en) | 2008-08-15 | 2008-08-15 | Submersible sewage electric pump with improved operation reliability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200386242U CN201273288Y (en) | 2008-08-15 | 2008-08-15 | Submersible sewage electric pump with improved operation reliability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201273288Y true CN201273288Y (en) | 2009-07-15 |
Family
ID=40883635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200386242U Expired - Fee Related CN201273288Y (en) | 2008-08-15 | 2008-08-15 | Submersible sewage electric pump with improved operation reliability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201273288Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104838138A (en) * | 2012-12-14 | 2015-08-12 | 赛莱默知识产权管理有限公司 | Cooling arrangement of pump intended for pumping liquid |
| CN107863850A (en) * | 2017-12-22 | 2018-03-30 | 蓝深集团股份有限公司 | It is a kind of that there is the efficiently submersible motor of cooling and self-cleaning function |
| US11808268B2 (en) | 2020-10-19 | 2023-11-07 | Milwaukee Electric Tool Corporation | Stick pump assembly |
-
2008
- 2008-08-15 CN CNU2008200386242U patent/CN201273288Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104838138A (en) * | 2012-12-14 | 2015-08-12 | 赛莱默知识产权管理有限公司 | Cooling arrangement of pump intended for pumping liquid |
| US10030670B2 (en) | 2012-12-14 | 2018-07-24 | Xylem Ip Management S.À R.L. | Cooling arrangement of a pump intended for pumping a liquid |
| CN107863850A (en) * | 2017-12-22 | 2018-03-30 | 蓝深集团股份有限公司 | It is a kind of that there is the efficiently submersible motor of cooling and self-cleaning function |
| US11808268B2 (en) | 2020-10-19 | 2023-11-07 | Milwaukee Electric Tool Corporation | Stick pump assembly |
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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: 20090715 Termination date: 20140815 |
|
| EXPY | Termination of patent right or utility model |