CN203146429U - Internal-circulation cooling device for submersible electric pump motor - Google Patents
Internal-circulation cooling device for submersible electric pump motor Download PDFInfo
- Publication number
- CN203146429U CN203146429U CN 201320009074 CN201320009074U CN203146429U CN 203146429 U CN203146429 U CN 203146429U CN 201320009074 CN201320009074 CN 201320009074 CN 201320009074 U CN201320009074 U CN 201320009074U CN 203146429 U CN203146429 U CN 203146429U
- Authority
- CN
- China
- Prior art keywords
- motor
- water
- connection seat
- impeller
- electric pump
- 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
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses internal-circulation cooling device and method for a submersible electric pump motor. The internal-circulation cooling device comprises a motor, a pump body and an impeller. An output shaft of the motor extends to the inside of the pump body, the impeller is arranged in the pump body and fixed at the end of the output shaft of the motor, back blades are respectively arranged on the rear end face of the impeller, a connecting seat is hermetically connected between the pump body and the motor, a cooling-water circulation sleeve is hermetically pressed between the connecting seat and an upper end cap of the motor, a channel formed between the inside wall of the cooling-water circulation sleeve and a motor shell is a circulation cooling chamber, a water entry channel and a backwater channel are cast inside the connecting seat, a water inlet of the water entry channel is located on the connecting seat at a corresponding position to an outer cylindrical portion of the back blades, a water outlet of the water entry channel and a water inlet of the backwater channel are respectively connected with the circulation cooling chamber, and a water outlet of the backwater channel is located on the connecting seat at a corresponding position to roots of the back blades. By adoption a new technical scheme, the internal-circulation cooling device is more compact and attractive in structure, production efficiency of a pump is improved, and improvement is especially clearer in mass production.
Description
Technical field
The utility model relates to sewage disposal device and industry equipment field, relates in particular to a kind of interior circulating cooler of submersible electric pump motor.
Background technique
Be extensive use of Submerged Motor Pumps in fields such as municipal engineering, industry, agricultural, power stations.Along with enhancing and the national attention all the more to the environmental protection field of people's environmental protection consciousness, the whole nation is with newly-built more than 1000 urban wastewater treatment firms during 12; Simultaneously country strengthens the investment of waterpower industry, and the demand of various relevant Submerged Motor Pumpss also can significantly promote.Also also more and more stricter to the requirement of pump simultaneously, liquid as conveying can be that clear water also can be the sewage that contains various fibers or domestic garbage, existing dry type is installed also has wet type to install, the situation that also has liquid level constantly to change, namely along with the work of electric pump, flood motor when liquid level is high, the situation of motor more than liquid level when liquid level is low.For wet type the work that both the electric pump complete machine pulled the plug is installed, the heat radiation of motor is no problem.Installation has just proposed very strict requirement to the heat radiation of motor to dry type, will burn motor if radiating effect is bad, and modern electrical machine generally adopts high electromagnetic load, reached the effect of saving the material reduced volume and reducing floor space, but also brought the heat that produces in the motor excessive simultaneously, and problems such as heat diffusion area relative deficiency, so heat dissipation problem is very outstanding, if dispel the heat the bad insulation life that will influence motor.
The heat dissipating method of other common electric machine has following several, the heat radiation of three asynchronous motors of Y type generally is fan to be installed and at support direct casting radiating fin, flow by fans drive surrounding atmosphere and to take away the heat that radiating fin is distributed, radiating effect is relatively good, but the power ratio that fan consumes is bigger, and this just is equivalent to lower electric efficiency.And the motor of diving axle mixed flow electric pump is installed in and with water sufficient the contact is arranged in the pit shaft, and motor directly adopts liquid cooling on every side, and motor is lowered the temperature and also do not had problems.The motor that some high pressure dry is installed also has the water-cooled structure of employing, because of the thermal capacity of liquid and the capacity of heat transmission much larger than air, cooling effect is very good, make motor maintain lower temperature rise level, but this motor need be joined a cooling waterpump in addition, and fixedly water source will be arranged, certain narrow limitation is also arranged under specific circumstances.
The motor type of cooling that present Submerged Motor Pumps manufacturer generally adopts is water cooling, at cooling jacket of electric machine stand design, from delivery side of pump flange drilling mounting pipe pass cold water to the motor water jacket, hot water is introduced pump intake from water jacket upper part installation pipeline, this type of cooling effect can also but a lot of shortcomings are arranged, the first, on-the-spot pipe arrangement is quite loaded down with trivial details, needs the pipe arrangement worker of specialty; The second, the pump component add short transverse tolerance stack and angle direction bore error in man-hour, can't assemble when error in length during the steel pipe blanking, various situations cause on-the-spot pipe arrangement at all, the assembling back is done hydrostatic test pipe joint place to pipeline and can be leaked by force.And most of users are more and more stricter to the environmental requirement at scene, and the field maintenance meeting of constantly leaking is very difficult if pipeline is equipped with the problem joint; The 3rd, how to take over road flow inconvenience control from pump discharge, unless installation gate valve, install behind the hand sluice valve that flow can be regulated but cost has improved and easily stop up, the 4th, this structure is all used identical steel pipe, and it is bigger, for preventing stopping up, can the efficient of pump be had a significant impact when therefore high-lift pump duty is big, the cooling effect of the not enough motor of lift low wash water is bad.Simultaneously many clients have proposed suggestion to this, wish that urgently producer can design a kind of submersible pump cooling new departure without the external pipeline cooling motor.
Motor is as the important composition parts of Submerged Motor Pumps, bringing into play very important effect, therefore the cooling to motor is a very crucial link, the utility model cooling well prolongs the insulation life of motor very significantly, interior circulation cooling structure can stopping state can not occur because having designed a section dirty seal ring effectively to the motor cooling yet; And need not make whole set structure compactness by external water-cooling tube after adopting the inner loop cooling; The installation time of pump is corresponding shortening also, has improved the efficiency of assembling of electric pump, has reduced the cost of production of pump.
The model utility content
The purpose of this utility model is in order to remedy the deficiency of prior art, a kind of interior circulating cooler and method of submersible electric pump motor are provided, be applicable to the cooling of the submersible motor that the dual-purpose and dry-type of all dry/wet types is installed, be particularly suitable for the dry type installation and carry occasion and the user of clear water or domestic sewage that site environment is required than higher occasion, be applicable to the cooling that the bigger mixed-flow submersible pump of big flow low lift power is worn motor in addition.
The utility model is achieved through the following technical solutions:
A kind of interior circulating cooler of submersible electric pump motor, include motor, the pump housing and impeller, the output shaft of described motor extends in the described pump housing, described impeller is positioned at the pump housing and is fixed in the output shaft end of described motor, it is characterized in that: back blade is arranged respectively on the ear end face of described impeller, be sealedly connected with connection seat between the described pump housing and the motor, sealing is pressed with the cooling water cycle water cover between described connection seat and the motor upper cover, the passage that forms between the madial wall of described cooling water cycle water cover and the electric machine casing is the circulation cooling chamber, be cast with intake tunnel and backwater channel in the described connection seat, the water intake of described intake tunnel is positioned on the connection seat of back blade cylindrical portion corresponding position, the water outlet of described intake tunnel and the water intake of backwater channel are connected with the circulation cooling chamber respectively, and the water outlet of described backwater channel is positioned on the connection seat of root corresponding position of back blade.
The middle part of described described connection seat is passed rotating shaft and is cooperated with rotating shaft sealing, and an end and the pump housing of described connection seat are sealed and matched, and the other end and motor lower end cap are sealed and matched.
Gutter has been designed in the water intake oral area position of described intake tunnel, and described gutter is circular groove, and its degree of depth changes from shallow to deep with angle, the equal fillet of root.
The water outlet of described intake tunnel is linked with outlet pipe, and described outlet pipe extend in the circulation cooling chamber of motor lower end cap end, and the water intake of described backwater channel is linked with intake pipe, and described intake pipe extend in the circulation cooling chamber of motor upper cover end.
Be respectively equipped with chimeric mutually section dirty seal ring on the back shroud of described impeller and the counterface of connection seat, the dirty seal ring inboard of cutting of described connection seat is provided with and annular pumping chamber, and the dirty seal ring that cuts of described impeller matches with annular pumping chamber.
The monolateral gap of annular pumping chamber of cutting dirty seal ring and connection seat of described impeller guarantees at 0.2-0.5mm.
Described back blade is six pieces, is distributed on the back shroud of impeller.
Its principle is: cardinal principle is that the back blade rotation of impeller produces pressure, cryogenic liquide at back blade outlet high pressure enters the cooling water cycle water cover by the water inlet, the high-temp liquid of taking away heat enters reflux line by the water intake of return pipe, whole system quite circulates between pump chamber and cooling water circular chamber driving liquid with a small impeller, reaches the purpose of lowering the temperature to motor.The utility model thoroughly efficiently solves motor cooling heat dissipation problem, make the electric pump compact overall structure attractive in appearance simultaneously, assembling is simple, thereby need not to join cooling tube after the electric pump assembling and saved piping time and piping material cost, also save simultaneously personnel's configuration of special pipe arrangement, reduced the cost of production of electric pump.And the circulation cooling motor has solved pipeline seepy question in the past in adopting, and site environment is greatly improved.
The water outlet position of described connection seat intake tunnel is linked into water-jacket space by the outlet pipe of certain-length, outlet pipe is with being threaded into motor lower end cap UNICOM cooling water cycle water cover, and acting as of outlet pipe avoids the dirt long time integration to influence cooling effect in obstruction water inlet, cooling water cycle water cover bottom; The water intake of described backwater channel also is connected to intake pipe, intake pipe is same with being threaded on the motor lower end cap, the water intake of aqueduct is in the extreme higher position of cooling water cycle water cover, can effectively allow the hot water in the cooling water cycle water cover be discharged in the pump chamber of low pressure by aqueduct like this, reach favorable cooling effect.
Existing employing external pipeline circular flow is uncontrollable, i.e. lift of pump height, and then the flow by water pipe is big, then flow is little otherwise lift is low, runs into big flow, and the cooling effect of the pump motor of low lift is not fine.And the coolant rate of inner circulation structure is controlled, be that flow is determined according to the power of motor size, the cooling water inflow of motor obtains fine control, when design, determined cooling hole inlet pressure at the heating of motor, this has also just determined to allow the optimal flux of motor cooling, allows the volumetric efficiency of water pump drop to minimum.The situation that the structure of circulation does not have with pipeline blockage yet in this occurs, because designed a section dirty seal ring at impeller and connection seat.
The utility model has the advantages that:
New departure of the present utility model is by Submerged Motor Pumps more compact structure, attractive in appearance, improved the manufacturing efficiency of pump, especially in production in enormous quantities, more significantly given prominence to its advantage, simultaneously whole system quite circulates between pump chamber and motor water jacket driving liquid with a small impeller, reaches the purpose of lowering the temperature to motor.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the partial sectional view of impeller.
Fig. 3 is the connection seat cross-sectional view.
Fig. 4 is the structural representation of the gutter on the connection seat.
Fig. 5 is that K-K among Fig. 4 is to partial sectional view.
Fig. 6 is that H-H among Fig. 5 is to partial sectional view.
Embodiment
Referring to accompanying drawing, a kind of interior circulating cooler of submersible electric pump motor, include motor 1, the pump housing 2 and impeller 3, the output shaft of motor 1 extends in the pump housing 2, impeller 3 is positioned at the pump housing 2 and is fixed in the output shaft end of motor 1, back blade 4 is arranged respectively on the ear end face of impeller 3, be sealedly connected with connection seat 5 between the pump housing 2 and the motor 1, sealing is pressed with cooling water cycle water cover 6 between connection seat 5 and motor 1 upper end cap, the passage that forms between the madial wall of cooling water cycle water cover 6 and the electric machine casing is circulation cooling chamber 7, be cast with intake tunnel 8 and backwater channel 9 in the connection seat 5, the water intake 17 of intake tunnel 8 is positioned on the connection seat 5 of back blade 4 cylindrical portion corresponding positions, the water intake of the water outlet of intake tunnel 8 and backwater channel 9 is connected with circulation cooling chamber 7 respectively, and the water outlet of backwater channel 9 is positioned on the connection seat 5 of root corresponding position of back blade 4; The middle part of connection seat 5 is passed rotating shaft 10 and is sealed and matched with rotating shaft 10, and an end and the pump housing 2 of connection seat 5 are sealed and matched, and the lower end cap 11 of the other end and motor 1 is sealed and matched; Gutter 13 has been designed in the water intake 17 oral area positions of intake tunnel 8, and gutter 13 is circular groove, and its degree of depth changes from shallow to deep with angle, the equal fillet of root; The water outlet of intake tunnel 8 is linked with aqueduct 14, and aqueduct 14 is screwed in the circulation cooling chamber 7 of motor 1 lower end cap 11 ends, and the water intake of backwater channel 9 is linked with intake pipe 15, and aqueduct 15 extend in the circulation cooling chamber 7 of motor 1 upper end cap end; Be respectively equipped with chimeric mutually section dirty seal ring 12 on the counterface of the back shroud of impeller 3 and connection seat 5, dirty seal ring 12 inboards of cutting of connection seat 5 are provided with and annular pumping chamber, and the dirty seal ring 12 that cuts of impeller 3 matches with annular pumping chamber 16; The monolateral gap of annular pumping chamber of cutting dirty seal ring 12 and connection seat 5 of impeller 3 guarantees at 0.2-0.5mm; Back blade 4 is six pieces, is distributed on the back shroud of impeller 3.
Claims (7)
1. the interior circulating cooler of a submersible electric pump motor, include motor, the pump housing and impeller, the output shaft of described motor extends in the described pump housing, described impeller is positioned at the pump housing and is fixed in the output shaft end of described motor, it is characterized in that: back blade is arranged respectively on the ear end face of described impeller, be sealedly connected with connection seat between the described pump housing and the motor, sealing is pressed with the cooling water cycle water cover between described connection seat and the motor upper cover, the passage that forms between the madial wall of described cooling water cycle water cover and the electric machine casing is the circulation cooling chamber, be cast with intake tunnel and backwater channel in the described connection seat, the water intake of described intake tunnel is positioned on the connection seat of back blade cylindrical portion corresponding position, the water outlet of described intake tunnel and the water intake of backwater channel are connected with the circulation cooling chamber respectively, and the water outlet of described backwater channel is positioned on the connection seat of root corresponding position of back blade.
2. the interior circulating cooler of submersible electric pump motor according to claim 1, it is characterized in that: the middle part of described described connection seat is passed rotating shaft and is cooperated with rotating shaft sealing, one end and the pump housing of described connection seat are sealed and matched, and the other end and motor lower end cap are sealed and matched.
3. the interior circulating cooler of submersible electric pump motor according to claim 1, it is characterized in that: gutter has been designed in the water intake oral area position of described intake tunnel, described gutter is circular groove, and its degree of depth changes from shallow to deep with angle, the equal fillet of root.
4. the interior circulating cooler of submersible electric pump motor according to claim 1, it is characterized in that: the water outlet of described intake tunnel is linked with outlet pipe, described outlet pipe extend in the circulation cooling chamber of motor lower end cap end, the water intake of described backwater channel is linked with intake pipe, and described intake pipe extend in the circulation cooling chamber of motor upper cover end.
5. the interior circulating cooler of submersible electric pump motor according to claim 1, it is characterized in that: be respectively equipped with chimeric mutually section dirty seal ring on the back shroud of described impeller and the counterface of connection seat, the dirty seal ring inboard of cutting of described connection seat is provided with and annular pumping chamber, and the dirty seal ring that cuts of described impeller matches with annular pumping chamber.
6. the interior circulating cooler of submersible electric pump motor according to claim 5 is characterized in that: the monolateral gap of annular pumping chamber of cutting dirty seal ring and connection seat of described impeller guarantees at 0.2-0.5mm.
7. the interior circulating cooler of submersible electric pump motor according to claim 1, it is characterized in that: described back blade is six pieces, is distributed on the back shroud of impeller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320009074 CN203146429U (en) | 2013-01-08 | 2013-01-08 | Internal-circulation cooling device for submersible electric pump motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320009074 CN203146429U (en) | 2013-01-08 | 2013-01-08 | Internal-circulation cooling device for submersible electric pump motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203146429U true CN203146429U (en) | 2013-08-21 |
Family
ID=48973956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320009074 Expired - Fee Related CN203146429U (en) | 2013-01-08 | 2013-01-08 | Internal-circulation cooling device for submersible electric pump motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203146429U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062135A (en) * | 2013-01-08 | 2013-04-24 | 安徽三联泵业股份有限公司 | Internal circulating cooling system and internal circulating cooling method of submersible electric pump motor |
| CN104454659A (en) * | 2014-11-11 | 2015-03-25 | 叶欣 | Abrasion-resistant pump |
| CN107143504A (en) * | 2017-07-07 | 2017-09-08 | 三联泵业股份有限公司 | A kind of submersible pump cooling system |
| CN113595329A (en) * | 2021-07-09 | 2021-11-02 | 福安市蓄发电机有限公司 | Closed cooling spin-ring water pump motor and cooling method thereof |
-
2013
- 2013-01-08 CN CN 201320009074 patent/CN203146429U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062135A (en) * | 2013-01-08 | 2013-04-24 | 安徽三联泵业股份有限公司 | Internal circulating cooling system and internal circulating cooling method of submersible electric pump motor |
| CN104454659A (en) * | 2014-11-11 | 2015-03-25 | 叶欣 | Abrasion-resistant pump |
| CN107143504A (en) * | 2017-07-07 | 2017-09-08 | 三联泵业股份有限公司 | A kind of submersible pump cooling system |
| CN113595329A (en) * | 2021-07-09 | 2021-11-02 | 福安市蓄发电机有限公司 | Closed cooling spin-ring water pump motor and cooling method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103062135A (en) | Internal circulating cooling system and internal circulating cooling method of submersible electric pump motor | |
| CN101499697B (en) | Liquid cooling motor | |
| CN203146429U (en) | Internal-circulation cooling device for submersible electric pump motor | |
| CN101408199A (en) | Intelligent water pump | |
| CN200996394Y (en) | Water-cooling pump | |
| CN201326551Y (en) | Intelligent water pump | |
| CN109139487B (en) | Intelligent efficient universal water supply system | |
| CN201461454U (en) | Electric pump with water circulating cooling motor | |
| CN201001069Y (en) | Water-cooling electric motor | |
| KR200433323Y1 (en) | Self cooling waterproof motor pump | |
| CN109327111B (en) | An anti-shock water-cooled brushless motor, motor pump unit and high-pressure cleaning equipment | |
| CN218971449U (en) | Submersible sand discharging pump integrated with pumping wheel type mechanical seal | |
| CN107559210B (en) | High temperature molten salt pump | |
| KR101220222B1 (en) | Vertical water pump operatable under submerged condition | |
| CN214366742U (en) | Submersible sewage pump | |
| CN108252359A (en) | A kind of liquid self-cooled machine water system | |
| CN201502540U (en) | Submersible sewage pump | |
| CN209212577U (en) | A kind of outer cooling self-loopa submerged pump | |
| CN208966712U (en) | A kind of mechanical seal air blast cooling self-cooling structure of heat-exchanger pump | |
| CN201902343U (en) | Self-starting submersible drainage pump | |
| CN206111449U (en) | Constant pressure water supply system from cooling water pump | |
| CN208380893U (en) | A kind of water pump convenient for heat dissipation | |
| CN223203271U (en) | A submersible pipeline pump with a sealing structure | |
| CN114039446A (en) | High-efficient motor air-cooling structure | |
| CN206432846U (en) | Cooling water recoil visible system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20140108 |