CN108305746A - A kind of compensation underwater transformer of annular - Google Patents
A kind of compensation underwater transformer of annular Download PDFInfo
- Publication number
- CN108305746A CN108305746A CN201810058713.1A CN201810058713A CN108305746A CN 108305746 A CN108305746 A CN 108305746A CN 201810058713 A CN201810058713 A CN 201810058713A CN 108305746 A CN108305746 A CN 108305746A
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- CN
- China
- Prior art keywords
- transformer
- shell
- annular
- expansion joint
- cabin
- Prior art date
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/06—Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
- H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
The present invention relates to a kind of compensation underwater transformers of annular comprising pedestal, shell, transformer winding, circular corrugated expansion joint and connecting cabin；It is provided with the shell on the pedestal, the transformer winding is provided in the shell；The annular shape corrugated expansion joint is looped around the casing surroundings, and the circular corrugated expansion joint is connect by the connecting cabin with the shell, and the annular shape corrugated expansion joint is also provided on the base.The present invention can increase the cancellation ratio of compensator；Compensator is avoided to increase the whole height of transformer simultaneously so that transformer longitudinal reduces to height dimension, and center of gravity reduces.The present invention can apply in hydrocarbon production system under water.
Description
Technical field
The present invention relates to a kind of underwater electrical equipment fields, especially with regard to a kind of compensation underwater transformer of annular.
Background technology
Underwater transformer basic structure is mounted on transformer in the shell of sealing, full of exhausted between transformer and shell
Edge oil.Underwater transformer needs to bear seawater pressure and heat effect simultaneously in the course of work of deep-sea.Underwater transformer is operated in
Deep seafloor bears the pressure effect of seawater.Transformer loss dissipates outward in the form of heat, thus underwater transformer also subject to
Heat effect.While transformer undergoes different working condition, insulating oil, which can also vary with temperature, to expand with heat and contract with cold.If water
Lower transformer shell interior insulation oil has seawater infiltration, and transformer will be caused to fail.Therefore, it in addition to special circumstances, should ensure that underwater
Transformer normal and reliable operation under pressure and heat effect.
In order to ensure sealing and the reliability of underwater transformer, therefore, to assure that the internal pressure of underwater transformer shell is higher than
Its external pressure, differential pressure requirements are about in 0.02~0.05MPa.
Pressure compensator is to ensure that underwater transformer is inside and outside to have desired pressure difference, it is ensured that underwater transformer normal operation
One of main device.It simply says, pressure compensator is an elastic element, plays pressure benefit on transformer simultaneously under water
It repays and two effects of volume compensation：1, pressure compensation：By controlling the oil-filled quantity size in underwater transformer shell body, pressure compensation
Device will produce corresponding deformational displacement, make the oil pressure in shell and hull outside pressure and pressure compensator elastic force (the two
Direction is consistent) the sum of balance, may make so underwater transformer-cabinet internal pressure be higher than external pressure.It is rational by being arranged
The elastic stiffness and oil-filled quantity of pressure compensator can make the control of babinet inside and outside differential pressure within the scope of 0.02~0.05Mpa.Work as outside
When pressure change, fluid volume can generate small variation accordingly, shell external and internal pressure will be made to reach balance again in this way, pressure
Difference has small fluctuation.Therefore pressure compensator makes pressure in shell follow the variation of external pressure at any time and change, and protects
Demonstrate,prove desired pressure difference.2, volume compensation：During the use of transformer, babinet interior insulation oil can continuous generating body accumulated heat it is swollen cold
Contracting.It is this since temperature change causes when oil volume is larger although the volume thermal expansion rate of insulating oil only has 0.00075
There is volume change can not ignore.Between transformer non-operating state and oepration at full load state, the insulating oil temperature difference is larger, and two
Oil volume under kind state changes greatly.When oil volume changes, pressure compensator copes with oil volume change by generating deformation
Change.Otherwise, the shell of underwater transformer will bear prodigious pressure, and large deformation, which can occur, for shell causes to crack.
Existing underwater transformer mainly carries out pressure compensation by external pressure compensator to transformer body.From
From the point of view of the prior art, when the depth of water is larger, bellows type pressure compensator is generally used.And when volume of transformer is larger, institute
The compensation rate needed can increase therewith, therefore the quantity of required pressure compensator can also increase therewith, and it is whole to result in transformer in this way
A series of problems, such as the complicated of body, maintenance difficult, higher manufacturing cost.
Invention content
In view of the above-mentioned problems, the object of the present invention is to provide a kind of compensation underwater transformer of annular, compensation can be increased
The cancellation ratio of device；Compensator is avoided to increase the whole height of transformer simultaneously so that transformer longitudinal reduces to height dimension, center of gravity
It reduces.
To achieve the above object, the present invention takes following technical scheme：A kind of compensation underwater transformer of annular, feature
It is：It includes pedestal, shell, transformer winding, circular corrugated expansion joint and connecting cabin；It is arranged on the pedestal
Shell is stated, the transformer winding is provided in the shell；The annular shape corrugated expansion joint is looped around the shell week
It encloses, and the circular corrugated expansion joint is connect by the connecting cabin with the shell, the annular shape bellow-type expansion
Device is also provided on the base.
Further, several through-holes are offered on the pedestal.
Further, for the transformer winding using the horizontal type structure being transversely mounted, the transformer winding is solid by bolt
It is scheduled on the bottom plate of the shell, the Housing Base welding is on the base.
Further, the enclosure interior is provided with the I-shaped steel frame for being used to support the transformer winding, the shell
Outside has been provided with the cooling fin of conductive force.
Further, four sides of the shell are respectively set there are one the connecting cabin；Each described connecting cabin one end
It is connect with the shell by ring flange, the other end is then connect by ring flange with the circular corrugated expansion joint, and institute
It states and completely cuts off with seawater inside connecting cabin.
Further, three connecting cabins are used to install the monitoring circuit of the transformer, another described connecting cabin
There are two connector, one of them described connectors to be used to connect the input electric power circuit of the transformer for upper setting, another
The connector is used to connect the output power circuit of the transformer.
Further, three connecting cabins equipped with monitoring circuit are all made of round cabin, and three connecting cabins are close to institute
It states shell side and offers hole, connector is provided with outside any one described connecting cabin equipped with monitoring circuit.
Further, there are four pipes for the inside welding of the circular corrugated expansion joint；In the pipe and the company
It connects and is provided with bellows between cabin, and respectively between the bellows and the pipe, the bellows and the connecting cabin
Between be provided with ring flange.
Further, the inside of the circular corrugated expansion joint and bellows is all filled with transformer oil.
The invention adopts the above technical scheme, which has the following advantages：1, inventive shell is respectively by being mounted on
The connecting cabin of four sides connects annulus bellows pressure compensator, and is equipped with monitoring circuit there are three interior in four connecting cabins,
It being set outside another connecting cabin there are two connector, a connector is used to connect transformer input electric power circuit, another
Connector is for connecting transformer output power circuit.It is greatly reduced the volume of transformer under horizontal water, reduces center of gravity,
Keep it more firm while ensureing pressure compensation, and ensure that outer bound pair its monitoring and facilitate wiring.2, of the invention
Transformer core winding is bolted on the bottom plate of shell, and Housing Base is welded on pedestal, and shell is logical with connecting cabin
Cross ring flange connection.Pedestal is provided with several through-holes to prevent bottom sediment from aggravating pedestal carrying.3, the present invention uses horizontal knot
Structure transformer is additionally provided with circular corrugated expansion joint, by the way that circular corrugated expansion joint is looped around transformer shell four
Week the length of corrugated expansion joint is increased in the case where occupying limited height, to increase the cancellation ratio of compensator.Together
When avoid compensator increase transformer whole height so that transformer longitudinal to height dimension reduce, center of gravity reduce, under water
More stablize, simplifies structure, reduce manufacturing cost.4, transformer of the invention uses horizontal type structure, by iron core winding
Inside housings, compared to vertical mounting means, longitudinal height dimension is greatly lowered for horizontal installation.Transformer center of gravity drops
Low, anti-ocean current impact capacity is stronger, and stability is more preferable.In conclusion the present invention can apply in hydrocarbon production system under water.
Description of the drawings
Fig. 1 is the overall structure exploded perspective view of the present invention；
Fig. 2 is middle casing of the present invention and the diagrammatic cross-section of transformer；
Fig. 3 is the structural schematic diagram of transformer and circular corrugated expansion joint in the present invention；
Fig. 4 is inside transformer structural schematic diagram in the present invention；
Fig. 5 is the connecting cabin structural schematic diagram that monitoring circuit is internally provided in the present invention；
Fig. 6 is the connecting cabin structural schematic diagram that connector is provided in the present invention；
Fig. 7 is the structural schematic diagram of connecting cabin and annulus corrugated expansion joint in the present invention.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below
It does not constitute a conflict with each other and can be combined with each other.
As shown in Fig. 1~Fig. 7, the present invention provides a kind of compensation underwater transformer of annular, uses circular bellows
Carry out pressure compensation, including pedestal 1, shell 2, transformer winding 3, circular corrugated expansion joint 4 and connecting cabin 5.On pedestal 1
It is provided with shell 2, transformer winding 3 is provided in shell 2, transformer winding 3 is positioned over by seabed by pedestal 1；It is circular
Corrugated expansion joint 4 is looped around around shell 2, and circular corrugated expansion joint 4 is connect by connecting cabin 5 with shell 2.Annulus
Shape corrugated expansion joint 4 is also disposed on pedestal 1.Several through-holes are offered on pedestal 1, to prevent bottom sediment from aggravating pedestal
1 carrying.
In above-described embodiment, transformer winding 3 uses iron core winding 6, and horizontal using iron core winding 6 to be transversely mounted
Structure, iron core winding 6 are bolted on 2 bottom plate of shell, and 2 bottom plate of shell is welded on pedestal 1.2 inside setting of shell
It is useful for the I-shaped steel frame 7 of support horizontal type structure transformer winding 3；The cooling fin of conductive force has been provided with outside shell 2.
Horizontal type structure makes longitudinal height dimension of inside transformer part and dependency structure be reduced so that the underwater transformer energy
It is enough placed in the smaller space of longitudinal size, the center of gravity of underwater transformer is relatively low, and structure is more firm.
As shown in Figure 4, Figure 5, four sides of shell 2 are respectively set there are one connecting cabin 5；Each 5 one end of connecting cabin is logical
It crosses ring flange to connect with shell 2, the other end is then connect by ring flange with circular corrugated expansion joint 4, and inside connecting cabin 5
Completely cut off with seawater.Wherein three connecting cabins 5 are used to install the monitoring circuit of transformer winding 3, to ensure the underwater transformation of outer bound pair
The monitoring of device avoids volume of transformer caused by control cabinet is separately provided inside shell 2 and increases；Another connecting cabin
There are two connectors 8 for setting on 5；One of connector 8 is used to connect the input electric power circuit of transformer, another connector
The 8 output power circuit for connecting transformer.Three connecting cabins 5 equipped with monitoring circuit are all made of round cabin, three connections
Cabin 5 offers hole close to 2 side of shell, the purpose to communicate with one another for realizing three monitoring circuits.It is equipped at any one
It monitors and is provided with connector outside the connecting cabin 5 of circuit, the interface being connect with the external world as underwater inside transformer monitoring circuit.
In above-described embodiment, 4 inner space of annulus corrugated expansion joint is communicated by connecting cabin 5 with 2 inner space of shell,
And it is full of transformer oil.When seawater pressure variation or inside transformer temperature change, annulus corrugated expansion joint 4 can occur
It is flexible, to the pressure change that compensation is brought due to fluid volume change, and make inside transformer pressure and external sea hydraulic pressure
Power is consistent.
As shown in Figure 6, Figure 7, there are four pipes 9 for the inside welding of circular corrugated expansion joint 4.In order to avoid by pipe
9 are directly connected to shell 2 and transverse pressure are caused to concentrate on the problem of circular corrugated expansion joint 4 is with 9 welding portion of pipe,
Bellows 10 is provided between pipe 9 and connecting cabin 5；And respectively between bellows 10 and pipe 9, bellows 10 with connect
It is provided with ring flange between cabin 5, to ensure the leakproofness of its connection.In circular corrugated expansion joint 4 and bellows 10
Portion is all filled with transformer oil, to ensure its effective progress pressure compensation.The design of circular corrugated expansion joint 4 increases benefit
The perimeter for repaying device, improves the cancellation ratio of corrugated expansion joint, at the same avoid installation compensator when can cause the whole of transformer
The problem of body height increases so that transformer longitudinal reduces to height dimension, and center of gravity reduces.And bellows 10 then ensure that and work as annulus
When shape corrugated expansion joint is by cross force, the weld of pipe 9 and circular corrugated expansion joint 4 will not be due to concentrating stress
Damage so that total stability increases.
In conclusion transformer of the present invention is before work, it first should be to the space between shell 2 and transformer winding 3
Full of pressure oil, its internal oil pressure is made to be higher than external pressure about 0.05Mpa.Transformer is when into the water, the pressure inside shell 2
Power is bigger 0.05Mpa than 2 outside of shell always, to ensure that shell 2 is not influenced by seawater pressure.
The various embodiments described above are merely to illustrate the present invention, and structure and size, installation position and the shape of each component are all can be with
It is varied from, based on the technical solution of the present invention, all improvement that individual part is carried out according to the principle of the invention and waits
With transformation, should not exclude except protection scope of the present invention.
Claims (9)
1. a kind of compensation underwater transformer of annular, it is characterised in that：It includes pedestal, shell, transformer winding, circular wave
Line pipe compensator and connecting cabin；It is provided with the shell on the pedestal, the transformer winding is provided in the shell；Institute
It states circular corrugated expansion joint and is looped around the casing surroundings, and the circular corrugated expansion joint passes through the connecting cabin
It is connect with the shell, the annular shape corrugated expansion joint is also provided on the base.
2. a kind of compensation underwater transformer of annular as described in claim 1, it is characterised in that：If being offered on the pedestal
Dry through-hole.
3. a kind of compensation underwater transformer of annular as described in claim 1, it is characterised in that：The transformer winding uses
The horizontal type structure being transversely mounted, the transformer winding are bolted on the bottom plate of the shell, the Housing Base
Welding is on the base.
4. the compensation underwater transformer of a kind of annular as described in claim 1 or 3, it is characterised in that：The enclosure interior is set
It is equipped with the I-shaped steel frame for being used to support the transformer winding, the hull outside has been provided with the cooling fin of conductive force.
5. a kind of compensation underwater transformer of annular as described in claim 1, it is characterised in that：Four sides of the shell
The connecting cabin there are one being respectively set；Each described connecting cabin one end is connect by ring flange with the shell, and the other end is then
It is connect with the circular corrugated expansion joint by ring flange, and completely cut off with seawater inside the connecting cabin.
6. a kind of compensation underwater transformer of annular as claimed in claim 5, it is characterised in that：Three connecting cabins are used for
The monitoring circuit of the transformer is installed, there are two connector, one of them described companies for setting on another described connecting cabin
Input electric power circuit of the device for connecting the transformer is connect, another described connector is used to connect the output of the transformer
Power circuit.
7. a kind of compensation underwater transformer of annular as claimed in claim 6, it is characterised in that：Three equipped with monitoring circuit
The connecting cabin is all made of round cabin, and three connecting cabins offer hole close to the shell side, in any one dress
It is provided with connector outside the connecting cabin for having monitoring circuit.
8. a kind of compensation underwater transformer of annular as described in claim 1, it is characterised in that：The annular shape bellows is mended
The inside welding of device is repaid there are four pipe；Bellows is provided between the pipe and the connecting cabin, and respectively described
It is provided with ring flange between bellows and the pipe, between the bellows and the connecting cabin.
9. a kind of compensation underwater transformer of annular as claimed in claim 8, it is characterised in that：The annular shape bellows is mended
The inside of device and bellows is repaid all filled with transformer oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810058713.1A CN108305746B (en) | 2018-01-22 | 2018-01-22 | A kind of compensation underwater transformer of annular |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810058713.1A CN108305746B (en) | 2018-01-22 | 2018-01-22 | A kind of compensation underwater transformer of annular |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108305746A true CN108305746A (en) | 2018-07-20 |
| CN108305746B CN108305746B (en) | 2019-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810058713.1A Active CN108305746B (en) | 2018-01-22 | 2018-01-22 | A kind of compensation underwater transformer of annular |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108319304A (en) * | 2018-01-22 | 2018-07-24 | 中国海洋石油集团有限公司 | A kind of annular deep sea pressure compensator |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005066983A1 (en) * | 2004-01-12 | 2005-07-21 | Bu-Sang Oh | Apparatus of transformer and manufacturing method thereof |
| CN2862280Y (en) * | 2005-11-24 | 2007-01-24 | 江苏百新波纹管有限公司 | Coal mine down-hole transformer shell |
| CN203218068U (en) * | 2013-03-18 | 2013-09-25 | 石绥 | Underwater seal box provided with transformers |
| CN204407170U (en) * | 2015-03-08 | 2015-06-17 | 中国船舶重工集团公司七五○试验场 | A kind of even pressure type transformer under water |
| CN206471768U (en) * | 2017-02-23 | 2017-09-05 | 广州市博一机电有限公司 | A kind of long-life, high pressure resistant electric expander component |
| CN107369523A (en) * | 2017-08-30 | 2017-11-21 | 华中科技大学 | A kind of underwater transformer of Natural Heat Convection formula |
-
2018
- 2018-01-22 CN CN201810058713.1A patent/CN108305746B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005066983A1 (en) * | 2004-01-12 | 2005-07-21 | Bu-Sang Oh | Apparatus of transformer and manufacturing method thereof |
| CN2862280Y (en) * | 2005-11-24 | 2007-01-24 | 江苏百新波纹管有限公司 | Coal mine down-hole transformer shell |
| CN203218068U (en) * | 2013-03-18 | 2013-09-25 | 石绥 | Underwater seal box provided with transformers |
| CN204407170U (en) * | 2015-03-08 | 2015-06-17 | 中国船舶重工集团公司七五○试验场 | A kind of even pressure type transformer under water |
| CN206471768U (en) * | 2017-02-23 | 2017-09-05 | 广州市博一机电有限公司 | A kind of long-life, high pressure resistant electric expander component |
| CN107369523A (en) * | 2017-08-30 | 2017-11-21 | 华中科技大学 | A kind of underwater transformer of Natural Heat Convection formula |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108319304A (en) * | 2018-01-22 | 2018-07-24 | 中国海洋石油集团有限公司 | A kind of annular deep sea pressure compensator |
| CN108319304B (en) * | 2018-01-22 | 2020-10-09 | 中国海洋石油集团有限公司 | Annular deep sea pressure compensator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108305746B (en) | 2019-07-16 |
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