CN202441617U - Pressure regulation device for submersible electric pump - Google Patents
Pressure regulation device for submersible electric pump Download PDFInfo
- Publication number
- CN202441617U CN202441617U CN2012200800022U CN201220080002U CN202441617U CN 202441617 U CN202441617 U CN 202441617U CN 2012200800022 U CN2012200800022 U CN 2012200800022U CN 201220080002 U CN201220080002 U CN 201220080002U CN 202441617 U CN202441617 U CN 202441617U
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- pressure regulation
- membrane
- base
- pressure
- groove
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Abstract
The utility model relates to the technical field of a submersible electric pump and particularly relates to a pressure regulation device for the submersible electric pump. The pressure regulation device comprises a base and is characterized in that the lower end of the base is provided with a pressure regulation groove; the pressure regulation groove is communicated with a rotor cavity of a submersible motor through a pressure regulation hole arranged in the base; the pressure regulation groove is internally provided with a pressure regulation device; the pressure regulation device comprises a pressure regulation membrane, a pressure regulation membrane cover and a fastening bolt; the pressure regulation membrane is made from a nitrile rubber material and is in a shape of a bowl; the periphery of the opening end of the pressure regulation membrane is provided with a seal table; the upper surface of the seal table consists of an annular convex surface at the periphery and a concave surface in the middle; the seal table is provided with a positioning ring; after the pressure regulation membrane is sealed and sleeved with the groove of the base through the seal table, the lower end of the pressure regulation membrane is clamped on the base by the positioning ring, and is fixed on the base by the fastening bolt after being covered at the opening end of the pressure regulation membrane by the pressure regulation membrane cover; and the pressure regulation membrane cover is provided with a water inlet. By virtue of the pressure regulation device, the maximum submersible depth of the submersible electric pump reaches more than 40m and pressure balance in a sealed room can be automatically regulated according to external pressure.
Description
Technical field
The utility model relates to the Submerged Motor Pumps technical field, specifically a kind of Submerged Motor Pumps regulator.
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 Submerged Motor Pumps regulator 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 Submerged Motor Pumps regulator comprises base, it is characterized in that the base lower end is provided with the pressure regulation groove; The pressure regulation groove is connected with the rotor chamber of submersible motor through the regulator hole that base is provided with, and is provided with regulator in the pressure regulation groove, and 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, and the sealing platform is provided with positioning ring, and pressure regulator membrane is behind sealing platform and base groove sealing fit; 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, when being beneficial to Submerged Motor Pumps and sinking; External pressure in water intake fills into pressure regulator membrane, makes outside hydraulic pressure with the inner concave jack-up in the middle of the pressure regulator membrane upper bottom surface in water.
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 advantages such as closed chamber internal pressure balance according to ambient pressure voluntarily.
Description of drawings
Accompanying drawing is the structural representation of the utility model.
Reference character: base 6, pressure regulation groove 15, regulator hole 16, pressure regulator membrane 17, pressure regulation membrane cover 18, tight fixed bolt 19, sealing platform 20, annular outer face 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 Submerged Motor Pumps regulator comprises base 6; It is characterized in that base 6 lower ends are provided with pressure regulation groove 15, the regulator hole 16 of pressure regulation groove 15 on base 6 is connected with the rotor chamber 25 of submersible motor 5, is 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, and pressure regulator membrane 17 is bowl-type; Pressure regulator membrane 17 opening end peripheries are provided with sealing platform 20; Upper bottom surface is to be made up of with middle inner concave 22 the outer convex surface 21 of circumferential annular, and sealing platform 20 is provided with positioning ring 23, and pressure regulator membrane 17 is behind sealing platform 20 and base groove 15 sealing fits; The lower end is stuck on the base 6 through positioning ring 23; And cover 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; External pressure in water intake 24 fills into pressure regulator membrane 17, makes outside hydraulic pressure with inner concave 22 jack-up in the middle of pressure regulator membrane 17 upper bottom surfaces in water.
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 upwards heave; 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 does not change, and has protected mechanical seal.
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 advantages such as closed chamber internal pressure balance according to ambient pressure voluntarily.
Claims (1)
1. a Submerged Motor Pumps regulator comprises base, it is characterized in that the base lower end is provided with the pressure regulation groove; The pressure regulation groove is connected with the rotor chamber of submersible motor through the regulator hole that base is provided with, and is provided with regulator in the pressure regulation groove, and 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 |
|---|---|---|---|
| CN2012200800022U CN202441617U (en) | 2012-03-06 | 2012-03-06 | Pressure regulation device for submersible electric pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200800022U CN202441617U (en) | 2012-03-06 | 2012-03-06 | Pressure regulation device for submersible electric pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202441617U true CN202441617U (en) | 2012-09-19 |
Family
ID=46823069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200800022U Expired - Fee Related CN202441617U (en) | 2012-03-06 | 2012-03-06 | Pressure regulation device for submersible electric pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202441617U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114233647A (en) * | 2021-12-15 | 2022-03-25 | 浙江省机电设计研究院有限公司 | Water pump and production process thereof |
-
2012
- 2012-03-06 CN CN2012200800022U patent/CN202441617U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114233647A (en) * | 2021-12-15 | 2022-03-25 | 浙江省机电设计研究院有限公司 | Water pump and production process thereof |
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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: 20120919 Termination date: 20130306 |