CN105356673A - Submersible motor pressure balance device - Google Patents
Submersible motor pressure balance device Download PDFInfo
- Publication number
- CN105356673A CN105356673A CN201510978712.5A CN201510978712A CN105356673A CN 105356673 A CN105356673 A CN 105356673A CN 201510978712 A CN201510978712 A CN 201510978712A CN 105356673 A CN105356673 A CN 105356673A
- Authority
- CN
- China
- Prior art keywords
- submersible motor
- pressure
- protective cover
- concora crush
- pressure balance
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/04—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for rectification
Abstract
The invention discloses a submersible motor pressure balance device and belongs to an auxiliary safety protection device of underwater electromechanical equipment. The submersible motor pressure balance device is pressure balance equipment which is designed for overcoming the defect that an oil-immersed type submersible motor is damaged easily under influence of pressure change. The submersible motor pressure balance device comprises a guide pipe, a protective cover and a pressure balancing drum and is characterized in that one end of the guide pipe is connected with an inner cavity of a submersible motor, and the other end penetrates into the protective cover and is connected with the pressure balancing drum in the protective cover; the protective cover is fixed on a case of the submersible motor, an oil filling hole is reserved in the guide pipe, and a sealing cap is mounted at the oil filling hole. With the adoption of the submersible motor pressure balance device, internal and external pressure of underwater operation equipment such as the submersible motor and the like can be automatically balanced, a sealing ring is protected, the service life of the equipment is prolonged, and the maintenance cost is reduced.
Description
Technical field
This invention belongs to the auxiliary security protective device of electromechanical equipment under water.
Background technology
Now, run electromechanical equipment under water mainly based on immersible pump, also have diving drill machine; These core components running electromechanical equipment are under water exactly submersible motor, and submersible motor not only runs under water, also Power output will be come.Generally there are immersion type and oil immersed type two kinds in motor for submerged pump inside, and immersion type efficiency is lower, and internal resistance is comparatively large, graphite bearing rapid wear; Oil immersed type efficiency is high, internal resistance is little, bearing is not fragile, but, static different with temperature during work due to submersible motor, so, internal pressure often changes, the easy like this sealing ring of power output shaft that causes damages because of the effect of external and internal pressure difference, and sealing ring causes leakage tripping after damaging, and submersible motor can not normally work.
Summary of the invention
Be subject to pressure variations influence for above-described oil immersed type submersible motor and the drawback damaged, spy devises this submersible motor pressure equaliser.
Solution of the present invention is: submersible motor pressure equaliser is made up of conduit, protective cover, concora crush drum, it is characterized in that: tube at one end is connected with submersible motor inner chamber, and the other end penetrates protective cover, is connected with the concora crush drum in protective cover; Protective cover is fixed on the casing of submersible motor, and reserved oil filler point on conduit, oil filler point installs sealing cap.
As mentioned above, submersible motor pressure equaliser is divided into side-mounted, roof-mounted, preformed, and side-mounted is the side being assemblied in submersible motor, and roof-mounted is the one end being assemblied in submersible motor; Preformed reserves surge chamber at the sidewall of submersible motor or one end, and surge chamber and submersible motor inner chamber have via, surge chamber collar extension sealing concora crush eardrum, fixed blade guard outside concora crush eardrum, conducting inside and outside protective cover.
As mentioned above, the peaceful drum pressure film of concora crush drum is made up of corrosion-resistant flexible plastic material, and volume with the difference of external and internal pressure, deformation can occur, and balances inside and outside pressure with this.
As mentioned above, submersible motor pressure equaliser is applicable to the electromechanics of all underwater operations, the cavity internal and external pressure balance of plant equipment.
Its basic functional principle is: when submersible motor sinks under the water, external pressure increases, concora crush drum or concora crush eardrum will cave in corresponding contraction, like this, inner space is shunk, internal pressure is corresponding increase also, thus has stabilized inside and outside pressure differential, reduces the external pressure of submersible motor output shaft sealing ring.When submersible motor is started working, internal temperature raises, under the effect of expanding with heat and contract with cold, internal pressure starts to increase, concora crush drum or concora crush eardrum will expand evagination, inner space expands, inner space is also corresponding to diminish, and has also correspondingly stabilized inside and outside pressure differential, reduces the internal pressure of submersible motor output shaft sealing ring.
This beneficial effect of the invention is: this invention can the inside and outside pressure of the underwater operation equipment such as autobalance submersible motor, protection sealing ring, extension device useful life, reduces maintenance cost.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, this invention is further illustrated.
Accompanying drawing 1 is the side-mounted structural representation of this invention.
Accompanying drawing 2 is the roof-mounted structural representations of this invention.
Accompanying drawing 3 is structural representations of this invention preformed.
1 submersible motor 2 concora crush drum 3 protective cover 4 conduit 5 sealing cap 6 oil filler point 7 submersible motor inner chamber 8 concora crush eardrum 9 surge chamber 10 via in figure.
Embodiment
Submersible motor pressure equaliser is made up of conduit (4), protective cover (3), concora crush drum (2), it is characterized in that: conduit (4) one end is connected with submersible motor inner chamber (7), the other end penetrates protective cover (3), is connected with concora crush drum (2) in protective cover (3); Protective cover (3) is fixed on the casing of submersible motor (1), and the upper reserved oil filler point (6) of conduit (4), oil filler point (6) installs sealing cap (5).
Submersible motor pressure equaliser is divided into side-mounted, roof-mounted, preformed, and side-mounted is the side being assemblied in submersible motor (1), and roof-mounted is the one end being assemblied in submersible motor (1); Preformed reserves surge chamber (9) at the sidewall of submersible motor (1) or one end, surge chamber (9) and submersible motor inner chamber (7) have via (10), surge chamber (9) collar extension sealing concora crush eardrum (8), concora crush eardrum (8) outside fixed blade guard (3), the inside and outside conducting of protective cover (3).
Concora crush drum (2) peaceful drum pressure film (8) is made up of corrosion-resistant flexible plastic material, and volume with the difference of external and internal pressure, deformation can occur, and balances inside and outside pressure with this.
Submersible motor pressure equaliser is applicable to the electromechanics of all underwater operations, the cavity internal and external pressure balance of plant equipment.
Claims (4)
1. submersible motor pressure equaliser is made up of conduit (4), protective cover (3), concora crush drum (2), it is characterized in that: conduit (4) one end is connected with submersible motor inner chamber (7), the other end penetrates protective cover (3), is connected with concora crush drum (2) in protective cover (3); Protective cover (3) is fixed on the casing of submersible motor (1), and the upper reserved oil filler point (6) of conduit (4), oil filler point (6) installs sealing cap (5).
2. submersible motor pressure equaliser according to claim 1, it is characterized in that: submersible motor pressure equaliser is divided into side-mounted, roof-mounted, preformed, side-mounted is the side being assemblied in submersible motor (1), and roof-mounted is the one end being assemblied in submersible motor (1); Preformed reserves surge chamber (9) at the sidewall of submersible motor (1) or one end, surge chamber (9) and submersible motor inner chamber (7) have via (10), surge chamber (9) collar extension sealing concora crush eardrum (8), concora crush eardrum (8) outside fixed blade guard (3), the inside and outside conducting of protective cover (3).
3. submersible motor pressure equaliser according to claim 1, it is characterized in that: concora crush drum (2) peaceful drum pressure film (8) is made up of corrosion-resistant flexible plastic material, can there is deformation with the difference of external and internal pressure in volume, balance inside and outside pressure with this.
4. submersible motor pressure equaliser according to claim 1, is characterized in that: submersible motor pressure equaliser is applicable to the electromechanics of all underwater operations, the cavity internal and external pressure balance of plant equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510978712.5A CN105356673A (en) | 2015-12-24 | 2015-12-24 | Submersible motor pressure balance device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510978712.5A CN105356673A (en) | 2015-12-24 | 2015-12-24 | Submersible motor pressure balance device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105356673A true CN105356673A (en) | 2016-02-24 |
Family
ID=55332574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510978712.5A Pending CN105356673A (en) | 2015-12-24 | 2015-12-24 | Submersible motor pressure balance device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105356673A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106051164A (en) * | 2016-08-16 | 2016-10-26 | 青蛙泵业有限公司 | Pressure balancing device for double-mechanical seals of deep-well pump motor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201781355U (en) * | 2010-07-30 | 2011-03-30 | 台州神能电器有限公司 | Internal/external pressure balancer for oil filling motor of submersible pump |
| CN103107633A (en) * | 2013-03-06 | 2013-05-15 | 马国辉 | Oil-filled submersible motor |
| CN103231791A (en) * | 2013-05-16 | 2013-08-07 | 哈尔滨工业大学 | Internal-and-external-pressure active balancing chamber |
| CN204646763U (en) * | 2015-05-26 | 2015-09-16 | 罗永福 | Pump oil supply system |
-
2015
- 2015-12-24 CN CN201510978712.5A patent/CN105356673A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201781355U (en) * | 2010-07-30 | 2011-03-30 | 台州神能电器有限公司 | Internal/external pressure balancer for oil filling motor of submersible pump |
| CN103107633A (en) * | 2013-03-06 | 2013-05-15 | 马国辉 | Oil-filled submersible motor |
| CN103231791A (en) * | 2013-05-16 | 2013-08-07 | 哈尔滨工业大学 | Internal-and-external-pressure active balancing chamber |
| CN204646763U (en) * | 2015-05-26 | 2015-09-16 | 罗永福 | Pump oil supply system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106051164A (en) * | 2016-08-16 | 2016-10-26 | 青蛙泵业有限公司 | Pressure balancing device for double-mechanical seals of deep-well pump motor |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160224 |