CN2033864U - Dry type canned submersible electric pump - Google Patents
Dry type canned submersible electric pump Download PDFInfo
- Publication number
- CN2033864U CN2033864U CN 87215666 CN87215666U CN2033864U CN 2033864 U CN2033864 U CN 2033864U CN 87215666 CN87215666 CN 87215666 CN 87215666 U CN87215666 U CN 87215666U CN 2033864 U CN2033864 U CN 2033864U
- Authority
- CN
- China
- Prior art keywords
- motor
- dry type
- case
- aeroseal
- 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.)
- Withdrawn
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a dry type submersible electric pump which is composed of a dry type electric machine, an air sealing box, an oil box and a pump body pump body. The inner part of the air sealing body is provided with a sleeve and an elastic sliding bush, and the inner part of the oil box is provided with an oil splashing device. When the pump works in submersible way, under the simultaneous actions of the water pressure and the thermal pressure, the elastic sliding bush can be restricted on the definite position through the variation rising and dropping of the oil surface of the oil box, which makes the water not enter in the electric machine. The oil box containing the lubricating oil can gets the lubrication action as well as partitions the passage that the water steam soaks in the electric machine. Thus, the dry type submersible electric pump ensures that the electric machine is at the ideal dry type canned working condition all along. The pump can displace the existing submersible electric pump.
Description
The utility model relates to the improvement of Submerged Motor Pumps.
The present Submerged Motor Pumps that uses, owing to lack the sealed electric-motor device, so when working in the pump housing and the motor immersion water, water just charges into motor cavity, therefore the pump housing must be equipped with special wet type electric motor, and wet type electric motor has been owing to replaced the rolling bearing of dry type motor with sliding bearing, and friction factor increases, inefficiency; Wet type electric motor requires sternly complex structure, cost height to the insulating properties of material in addition." the equal last item envelope of the air sac type full-drying type Submerged Motor Pumps " put on display on the 3rd show of inventions of China, though solved the motor seal problem from structure, available dry type motor replaces wet type electric motor.But this electric pump places motor on the pump housing, adds a seal closure then around motor, and current must be by on the circulation road that forms around the motor.Like this, motor just will bear the pressure of overall process, and air-proof condition requires high, causes the runner wetted perimeter big simultaneously, and power consumption is high, inefficiency, and complex structure is made difficulty is installed, and to the requirement height of hole diameter.
The utility model improves existing Submerged Motor Pumps, below in conjunction with its concrete structure of description of drawings and execution.
The utility model adopts the dry type motor, it is characterized in that being made up of dry type motor, fuel tank, inverted aeroseal case and the pump housing, and the dry type motor places pump housing below.Accompanying drawing is a main pseudosection of the present utility model.Impeller (1) connects firmly with impeller shaft (3), and pump lower casing (2) is fixed on the support (4), and aeroseal case (5) connects with impeller shaft (3) and motor shaft (8) respectively by flat key, and rotates synchronously thereupon.Sleeve (6) is enclosed within on the interior one section motor shaft (8) of aeroseal case (5), its lower end tightly is set in the motor loam cake (9), elastomeric sleeve (7) places in the aeroseal case (5) and perpendicular to sleeve (6), the one end is close to aeroseal case (5) inwall, the other end and sleeve (6) Elastic Contact, and allow it to rotate with aeroseal case (5).Elastomeric sleeve (7) is divided into aeroseal case (5) inner chamber chamber and following chamber simultaneously again.Device one fuel tank (13) between motor loam cake (9) and rotor (15), fuel tank (13) circularizes and is fixed under the motor loam cake (9), and an amount of lubricant oil is housed in the fuel tank.One pair of oil propeller (12) is on the one section motor shaft (8) between upper bearing (metal) (10) and the fuel tank (13), and with motor shaft (8) rotation synchronously, oil propeller (12) also ringwise, so fuel tank (13) is divided into inner room and mistress, the bottom of two Room communicates, and can allow lubricant oil therefrom to flow through.Inner room communicates with motor cavity by the gap of fuel tank (13) and motor shaft (8), the mistress communicates with the last chamber of aeroseal case (5) with the gap of motor shaft (8) by upper bearing (metal) (10), sleeve (6) inwall, and the effect of sleeve (6) has been to improve motor cavity and the extraneous height that contacts.
When the utility model pulls the plug, water just be charged to aeroseal case (5) around, when stator (16) rotates by cable (11) energising rotor (15), aeroseal case (5) also rotates thereupon, at this moment just there is a spot of water to enter the following chamber of aeroseal case (5) from the aeroseal case (5) and the gap of motor loam cake (9), because the water that enters has occupied certain space, just original air generation pressure in the chamber under compressing, elastomeric sleeve under the effect of this pressure (7) just begins come-up, the air of chamber also is under pressure, this power is again by the transfer of air between sleeve (6) and the motor shaft (8), act on fuel tank (13) mistress's the pasta, because the incompressibility of liquid, mistress's pasta begin to descend, the inner room pasta rises.Motor cavity seals under the effect of motor housing (14), motor loam cake (9) and motor lower cover (17), when starting working, motor produces heat energy, the air expanded by heating of its inner chamber, produce thermal pressure, this power is by the transfer of air between fuel tank (13) and the motor shaft (8), act on again on the pasta of fuel tank (13) inner room, force the pasta of inner room to descend, mistress's pasta rises, make the air on mistress's pasta produce pressure, this power acts on the last chamber of aeroseal case (5) again conversely, forces elastomeric sleeve (7) to descend.Under the reaction of two power, elastomeric sleeve (7) is tended towards stability substantially like this, thus with aeroseal case (5) down the water that immerses of chamber be limited to not and elastomeric sleeve (7) position contacting.Lubricant oil in the fuel tank (13) plays the instrumentality of transmission power again when assurance is lubricated to upper bearing (metal) (10), also can cut off the water vapour that immerses by in the aeroseal case (5) in addition, thereby reach the hermetically sealed effect to motor.
The dry type motor is after starting working under the hermetic environment, and rotor (15) just drives motor shaft (8) and rotates, and motor shaft (8) rotates, thereby reaches drainage effect by anastomosis impeller axle (3), the impeller (1) of aeroseal case (5) again.
The more existing electric pump of the utility model has outstanding characteristics, and it has replaced wet type electric motor with the dry type motor, and this device places motor under the pump housing in addition, and motor only bears water depth pressure, so the air-proof condition requirement is low, its cost descends 30% than wet type electric motor.Secondly it has replaced sliding bearing with rolling bearing, and frictional force reduces, and the raising of anti-axial force, so unit efficiency improves 5-8% approximately.In addition, the more similar electric pump of the utility model is saved material, cut down the consumption of energy, and low, simple in structure to the hole diameter requirement, installation and maintenance are convenient.
Claims (4)
1, a kind of dry-type submersible pump is made up of dry type motor, the pump housing, seal arrangement, it is characterized in that: the dry type motor places under the pump housing, and motor seal is the device that adopts air and the common sealing of lubricant oil.
2, seal arrangement according to claim 1 is characterized in that the two ends up and down at the dry type motor, and the motor loam cake (9) and the motor lower cover (17) that seal are housed.
3, air seal according to claim 1, it is characterized in that between the dry type motor and the pump housing, being equipped with inverted aeroseal case (5), aeroseal case (5) connects with impeller shaft (3) and motor shaft (8) respectively by flat key, be equipped with one in the case and be enclosed within that motor shaft (8) is gone up and the lower end tightly is bumped into sleeve (6) in the motor loam cake (9), and installs and the elastomeric sleeve (7) of Elastic Contact vertical with sleeve (6), its the other end is close to the inwall of aeroseal case (5), and aeroseal case (5) is divided into chamber and following chamber.
4, seal oil device according to claim 1, it is characterized in that between dry type motor and motor loam cake (9), lubricating oil tank (13) being housed, one pair of oil propeller (12) is connected on one section motor shaft (8) on fuel tank (13) top, and fuel tank (13) is divided into inner room and mistress, the mistress communicates up and down with aeroseal case (5) with the gap of motor shaft (8) by upper bearing (metal) (10), sleeve (6) inwall, and inner room communicates with motor cavity by the gap of fuel tank (13) with motor shaft (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87215666 CN2033864U (en) | 1987-11-13 | 1987-11-13 | Dry type canned submersible electric pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87215666 CN2033864U (en) | 1987-11-13 | 1987-11-13 | Dry type canned submersible electric pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2033864U true CN2033864U (en) | 1989-03-08 |
Family
ID=4829757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87215666 Withdrawn CN2033864U (en) | 1987-11-13 | 1987-11-13 | Dry type canned submersible electric pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2033864U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1065326C (en) * | 1997-03-24 | 2001-05-02 | 陈启星 | Sealing structure of pressure follow and match follow and its motor-pump system |
-
1987
- 1987-11-13 CN CN 87215666 patent/CN2033864U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1065326C (en) * | 1997-03-24 | 2001-05-02 | 陈启星 | Sealing structure of pressure follow and match follow and its motor-pump system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2002907A (en) | Motor pump | |
| CN207936626U (en) | A kind of cold-hot integrated formula constant temperature machine | |
| CN2033864U (en) | Dry type canned submersible electric pump | |
| YU47672B (en) | VERTICAL IMPROVED PUMP ASSEMBLY | |
| CN112737191B (en) | Underwater waterproof motor capable of automatically cooling | |
| CN209056381U (en) | A kind of fixed structure of submersible pump capacitor | |
| CN2225105Y (en) | Single phase electric motor for water pump | |
| JPH10205499A (en) | Motor cooling device for vertical type motor-driven pump | |
| CN2224941Y (en) | Planar motor underwater pump | |
| CN216407206U (en) | Gas isolation sealing structure | |
| CN2152482Y (en) | Electric water-draining thermos with integrated motor and pump piston | |
| CN2068292U (en) | Dry submersible motor with integrated arranging sealing unit | |
| CN218276230U (en) | Long service life's electric motor rotor | |
| CN213511248U (en) | Permanent magnet motor with frequency converter and machine barrel | |
| CN2254492Y (en) | Magnetic drive ammonia pump | |
| CN209977256U (en) | Mechanical seal with anti-corrosion function | |
| CN2635949Y (en) | Submerged pump with pressure adjusting chamber | |
| CN2308747Y (en) | Oil sealing mechanical and electric micro water pump | |
| CN209539577U (en) | A kind of high-efficiency energy-saving permanent magnet submersible pump | |
| CN218627353U (en) | Compression heat pump convenient to maintenance | |
| CN220172940U (en) | Rotor of rotating electric machine | |
| CN2365429Y (en) | Vertical non-leakage corrosion resisting pump | |
| CN201535265U (en) | Submersible sewage pump | |
| CN2268152Y (en) | Vertical high-speed motor oil lubrication sealing device | |
| CN218390846U (en) | Motor output shaft seal assembly structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |