CN202468352U - Oil-filled submersible electric pump - Google Patents
Oil-filled submersible electric pump Download PDFInfo
- Publication number
- CN202468352U CN202468352U CN201220049904XU CN201220049904U CN202468352U CN 202468352 U CN202468352 U CN 202468352U CN 201220049904X U CN201220049904X U CN 201220049904XU CN 201220049904 U CN201220049904 U CN 201220049904U CN 202468352 U CN202468352 U CN 202468352U
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- pressure regulating
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- pressure
- sealing
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Abstract
The utility model discloses an oil-filled submersible electric pump, which is provided with a pump body, a guide vane, an impeller, a water outlet and a submersible motor component. The oil-filled submersible electric pump is characterized by being provided with a shaft protecting jacket, a shaft sealing jacket and a pressure regulating device; the upper end of the shaft protecting jacket is hermetically connected with the shaft sealing jacket; the lower end of the shaft protecting jacket is fixedly connected with a water inlet joint; a pressure regulating groove is arranged at the lower end of a base; the pressure regulating groove is communicated with a rotor cavity of a submersible motor through a pressure regulating hole; the pressure regulating device is arranged in the pressure regulating groove; the pressure regulating device comprises a pressure regulating membrane, a pressure regulating membrane cover and a fastening bolt; a sealing platform is arranged on the periphery of an open end of the pressure regulating membrane; an upper bottom surface consists of a peripheral annular outer convex surface and an intermediate inner concave surface; a positioning ring is arranged on the sealing platform; after the pressure regulating membrane is hermetically nested with the groove of the base through the sealing platform, the lower end of the pressure regulating membrane is clamped on the base through the positioning ring and is fixedly arranged on the base by using the fastening bolt after covering at the open end of the pressure regulating membrane through the pressure regulating membrane cover; and a water inlet is arranged on the pressure regulating membrane cover. A maximal submersible depth is up to more than 40 meters, and the oil-filled submersible electric pump has the advantages that the sealing property is high, the service life of the motor is long, and the like.
Description
Technical field
The utility model relates to the submersible pump technical field, specifically a kind of oil-filled type Submerged Motor Pumps.
Background technique
At present, existing oil-filled type Submerged Motor Pumps comprises the pump housing, stator, impeller, pump cover, water outlet and submersible motor portion dress composition, and the motor section dress comprises base, casing, stator, rotor, loam cake, water inlet joint and sealing case, and the casing lower end is fixedly connected with base; The upper end is fixedly connected with the water inlet joint with loam cake, and machine envelope seat is housed on the water inlet joint, and interior is equipped with stator, rotor; The rotor lower end is connected with base through bearing, and the upper end is connected with loam cake through bearing, is equipped with sealing case, axle sleeve, sand control ring, impeller on the rotor; Sealing case is tightly connected with loam cake and water inlet joint respectively, and to form Seal cage, axle sleeve is connected with bearing support; The pump cover lower end is fixedly connected with the water inlet joint, and the upper end is fixedly connected with pump case, and water outlet is housed on the pump case; Stator is equipped with in inside, and motor cavity and Seal cage are equipped with the insulation cold oil, and the deficiency of this oil-filled type Submerged Motor Pumps structure is: in use; The one, diving depth can not be greater than 5 meters, and when diving depth during greater than 5 meters, the outside pressure of Submerged Motor Pumps is greater than the sealing load of Submerged Motor Pumps sealing case; Easily sealing case is backed down, cause the sealing case seal failure, make the Seal cage and the water inlet of rotor chamber of submersible motor; Cause motor coil to burn out, insulating oil leak in the water, produces water and pollutes.
Summary of the invention
The purpose of the utility model is the deficiency that solves above-mentioned existing technology, and a kind of novel structure, sealability height, motor long service life, pollution-free, the oil-filled type Submerged Motor Pumps that can adjust closed chamber internal pressure balance according to ambient pressure voluntarily are provided.
The utility model solves the technological scheme that its technical problem adopted:
A kind of oil-filled type Submerged Motor Pumps is provided with the pump housing, stator, impeller, water outlet and submersible motor portion dress, and the motor section dress comprises base, casing, stator, rotor, water inlet joint and single mechanical end face seal; It is characterized in that being provided with protective shaft jacket, shaft sealing cover, regulator, the protective shaft jacket upper end is tightly connected with the shaft sealing cover, and the lower end is fixedly connected with the water inlet joint; The base lower end is provided with the pressure regulation groove, and the pressure regulation groove is connected with the rotor chamber of submersible motor through regulator hole, is provided with regulator in the pressure regulation groove; Regulator comprises pressure regulator membrane, pressure regulation membrane cover and tight fixed bolt, and pressure regulator membrane adopts the nitrile rubber material to process, and pressure regulator membrane is bowl-type; Pressure regulator membrane opening end periphery is provided with the sealing platform, and upper bottom surface is to be made up of outer convex surface of circumferential annular and middle inner concave, and the sealing platform is provided with positioning ring; Pressure regulator membrane is after sealing platform and base groove seal fit, and the lower end is stuck on the base through positioning ring, and covers behind the pressure regulator membrane opening end through the pressure regulation membrane cover and to be fixed on the base with tight fixed bolt; Pressure regulator membrane covers and is provided with water intake; When being beneficial to Submerged Motor Pumps and sinking, in water intake filled into pressure regulator membrane, outside hydraulic pressure was with the inner concave jack-up in the middle of the pressure regulator membrane upper bottom surface with water for external pressure.
The utility model is owing to adopt said structure; Make the maximum diving depth of Submerged Motor Pumps reach more than 40 meter dark, have novel structure, sealability height, motor long service life, pollution-free, can adjust closed chamber internal pressure balance voluntarily according to ambient pressure, save component, practice thrift advantages such as cost.
Description of drawings
Accompanying drawing is the structural representation of the utility model.
Reference character: the pump housing 1, stator 2, impeller 3, water outlet 4, submersible motor 5, base 6, casing 7, stator 8, rotor 9, water inlet joint 11, single mechanical end face seal 12, protective shaft jacket 13, shaft sealing cover 14, pressure regulation groove 15, regulator hole 16, pressure regulator membrane 17, pressure regulation membrane cover 18, tight fixed bolt 19, sealing platform 20, outer convex surface 21, inner concave 22, positioning ring 23, water intake 24, rotor chamber 25.
Embodiment:
Below in conjunction with accompanying drawing the utility model is further specified:
Shown in accompanying drawing, a kind of oil-filled type Submerged Motor Pumps is provided with the pump housing 1, stator 2, impeller 3, water outlet 4 and 5 dresses of submersible motor; The motor section dress comprises base 6, casing 7, stator 8, rotor 9, water inlet joint 11 and single mechanical end face seal 12, it is characterized in that being provided with protective shaft jacket 13, shaft sealing cover 14, regulator, and protective shaft jacket 13 upper ends and shaft sealing cover 14 are tightly connected; The lower end is fixedly connected with water inlet joint 11, and base 6 lower ends are provided with pressure regulation groove 15, and pressure regulation groove 15 is connected with the rotor chamber 25 of submersible motor 5 through regulator hole 16; Be provided with regulator in the pressure regulation groove 15, regulator comprises pressure regulator membrane 17, pressure regulation membrane cover 18 and tight fixed bolt 19, and pressure regulator membrane 17 adopts the nitrile rubber material to process; Pressure regulator membrane 17 is bowl-type, and pressure regulator membrane 17 opening end peripheries are provided with sealing platform 20, and upper bottom surface is to be made up of with middle inner concave 22 the outer convex surface 21 of circumferential annular; Sealing platform 20 is provided with positioning ring 23; Pressure regulator membrane 17 is behind sealing platform 20 and base groove 15 sealing fits, and the lower end is stuck on the base 6 through positioning ring 23, and covers behind pressure regulator membrane 17 opening ends through pressure regulation membrane cover 18 and to be fixed on the base 6 with tight fixed bolt 19; Pressure regulation membrane cover 18 is provided with water intake 24; When being beneficial to Submerged Motor Pumps and sinking, in water intake 24 filled into pressure regulator membrane 17, outside hydraulic pressure was with inner concave 22 jack-up in the middle of pressure regulator membrane 17 upper bottom surfaces with water for external pressure.
Working principle: suppose that Submerged Motor Pumps slips under water 20 meters when dark, external water pressure increases to 0.2 MPa, and hydraulic action is to the pressure regulator membrane 17 of regulator; Pressure regulator membrane 17 externally under the effect of hydraulic pressure wherein between inner concave 22 raise up; Transfer the pressure on the cold oil in rotor chamber 25, because fluid is incompressible, oil pressure and external water pressure in the causes motor rotor chamber 25 reach balance; The pressure-bearing of mechanical seal 12 does not change, and has protected mechanical seal 12.
The utility model is owing to adopt said structure; Make the maximum diving depth of Submerged Motor Pumps reach more than 40 meter dark, have novel structure, sealability height, motor long service life, pollution-free, can adjust closed chamber internal pressure balance voluntarily according to ambient pressure, save component, practice thrift advantages such as cost.
Claims (1)
1. an oil-filled type Submerged Motor Pumps is provided with the pump housing, stator, impeller, water outlet and submersible motor portion dress, and the motor section dress comprises base, casing, stator, rotor, water inlet joint and single mechanical end face seal; It is characterized in that being provided with protective shaft jacket, shaft sealing cover, regulator, the protective shaft jacket upper end is tightly connected with the shaft sealing cover, and the lower end is fixedly connected with the water inlet joint; The base lower end is provided with the pressure regulation groove, and the pressure regulation groove is connected with the rotor chamber of submersible motor through regulator hole, is provided with regulator in the pressure regulation groove; Regulator comprises pressure regulator membrane, pressure regulation membrane cover and tight fixed bolt; Pressure regulator membrane adopts the nitrile rubber material to process, and pressure regulator membrane is bowl-type, and pressure regulator membrane opening end periphery is provided with the sealing platform; Upper bottom surface is to be made up of outer convex surface of circumferential annular and middle inner concave; The sealing platform is provided with positioning ring, and pressure regulator membrane is behind sealing platform and base groove sealing fit, and the lower end is stuck on the base through positioning ring; And cover behind the pressure regulator membrane opening end through the pressure regulation membrane cover and to be fixed on the base with tight fixed bolt, pressure regulator membrane covers and is provided with water intake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220049904XU CN202468352U (en) | 2012-02-16 | 2012-02-16 | Oil-filled submersible electric pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220049904XU CN202468352U (en) | 2012-02-16 | 2012-02-16 | Oil-filled submersible electric pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202468352U true CN202468352U (en) | 2012-10-03 |
Family
ID=46916513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220049904XU Expired - Fee Related CN202468352U (en) | 2012-02-16 | 2012-02-16 | Oil-filled submersible electric pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202468352U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562615A (en) * | 2012-02-16 | 2012-07-11 | 山东名流实业集团有限公司 | Oil charge type submersible pump |
| CN105041718A (en) * | 2014-09-15 | 2015-11-11 | 邢宇 | Submersible pump with pressure holding device capable of adjusting oil storage chamber volume of the submersible pump |
| CN113659757A (en) * | 2016-12-06 | 2021-11-16 | 中国计量大学 | Deep diving infinitely can be through being full of the totally enclosed type that oil has come to implement the waterproof seal of top support nature for a long time and drag the electrical machinery |
| CN113904485A (en) * | 2016-12-06 | 2022-01-07 | 梁嘉麟 | Method for filling oil into underwater dragging motor capable of realizing water-proof sealing by jacking external force to seep water by being filled with oil infinitely in deep diving |
-
2012
- 2012-02-16 CN CN201220049904XU patent/CN202468352U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562615A (en) * | 2012-02-16 | 2012-07-11 | 山东名流实业集团有限公司 | Oil charge type submersible pump |
| CN102562615B (en) * | 2012-02-16 | 2014-12-10 | 山东名流实业集团有限公司 | Oil charge type submersible pump |
| CN105041718A (en) * | 2014-09-15 | 2015-11-11 | 邢宇 | Submersible pump with pressure holding device capable of adjusting oil storage chamber volume of the submersible pump |
| CN113659757A (en) * | 2016-12-06 | 2021-11-16 | 中国计量大学 | Deep diving infinitely can be through being full of the totally enclosed type that oil has come to implement the waterproof seal of top support nature for a long time and drag the electrical machinery |
| CN113746248A (en) * | 2016-12-06 | 2021-12-03 | 中国计量大学 | Submersible dragging motor capable of realizing infinite deep diving and extremely long-term diving |
| CN113904485A (en) * | 2016-12-06 | 2022-01-07 | 梁嘉麟 | Method for filling oil into underwater dragging motor capable of realizing water-proof sealing by jacking external force to seep water by being filled with oil infinitely in deep diving |
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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: 20121003 Termination date: 20150216 |
|
| EXPY | Termination of patent right or utility model |