CN108305747B - Transformer under a kind of enclosed water - Google Patents
Transformer under a kind of enclosed water Download PDFInfo
- Publication number
- CN108305747B CN108305747B CN201810058714.6A CN201810058714A CN108305747B CN 108305747 B CN108305747 B CN 108305747B CN 201810058714 A CN201810058714 A CN 201810058714A CN 108305747 B CN108305747 B CN 108305747B
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- CN
- China
- Prior art keywords
- shell
- transformer
- expansion joint
- corrugated expansion
- top cover
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- 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.)
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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
- H01F27/02—Casings
- H01F27/025—Constructional details relating to cooling
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
The present invention relates to transformers under a kind of enclosed water comprising shell, transformer winding, pedestal, closed corrugated expansion joint and monitoring cabin；Housing bottom is provided with bottom plate, and top is provided with top cover, and shell and bottom plate weld, and bottom plate is bolted on pedestal；Transformer winding is laterally lifted on bottom in shell, offers annular groove in the top cover peripheral region of shell, closed corrugated expansion joint is mounted in the annular groove；On the top cover of shell, annular groove middle position is provided with monitoring cabin；In addition to transformer winding and the case top component being made of top cover, monitoring cabin and closed corrugated expansion joint, shell rest part is full welding or full cast structure；After the installation is completed by case top component, then by case top component it is integrally welded on shell, forms full-enclosed structure.The present invention can be such that inside transformer pressure is consistent with external seawater pressure, be suitable for underwater hydrocarbon production system.
Description
Technical field
The present invention relates to a kind of underwater electrical equipment fields, carry out pressure using circular bellows especially with regard to a kind of
Transformer under the enclosed water of compensation.
Background technique
Underwater transformer basic structure is that transformer is mounted 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 work exists
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 underwater
Transformer shell interior insulation oil has seawater infiltration, will lead to transformer failure.Therefore, in addition to special circumstances, it should ensure that underwater change
Depressor normal and reliable operation under pressure and heat effect.
In order to guarantee the sealing and 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 guarantee that underwater transformer is inside and outside to have requirement
Pressure difference, it is ensured that one of the main device that underwater transformer operates normally.It simply says, pressure compensator is an elasticity member
Part plays pressure compensation and volume compensation two effects simultaneously under water on transformer:
1, pressure compensation
By controlling the oil-filled quantity size in underwater transformer shell body, pressure compensator can generate corresponding deformation position
It moves, balances the intracorporal oil pressure of shell with the sum of hull outside pressure and pressure compensator elastic force (the two direction is consistent), in this way
Underwater transformer-cabinet internal pressure may make to be higher than external pressure.By be arranged reasonable pressure compensator elastic stiffness and
Oil-filled quantity can make the control of cabinet inside and outside differential pressure within the scope of 0.02~0.05Mpa.When external pressure variation, oil liquid volume meeting
Small variation is generated accordingly, shell external and internal pressure will be made to reach balance again in this way, and pressure difference has small fluctuation.Therefore
Pressure compensator makes pressure in shell follow the variation of external pressure at any time and change, and guarantees desired pressure difference.
2, volume compensation
In the use process of transformer, cabinet interior insulation oil can continuous generating body product expand with heat and contract with cold.Although the body of insulating oil
Thermal expansion rate only has 0.00075, but when oil volume is larger, this to have volume change that neglect due to caused by temperature change
Slightly.Between transformer non-operating state and oepration at full load state, the insulating oil temperature difference is larger, and the oil volume under two states becomes
Change larger.When oil volume variation, pressure compensator copes with oil volume variation by generating deformation.Otherwise, underwater transformer
Shell will bear very big pressure, excessive deformation, which can occur, for shell causes to crack.
The underwater transformer having mainly carries out pressure compensation to transformer body by external pressure compensator.From now
From the point of view of having technology, when the depth of water is larger, bellows type pressure compensator is generally used.And when volume of transformer is larger, it is required
The compensation rate wanted can increase therewith, therefore the quantity of required pressure compensator can also increase therewith, result in transformer entirety in this way
A series of problems, such as structure is complicated, maintenance difficult, higher manufacturing cost.
Summary of the invention
In view of the above-mentioned problems, effectively reducing compensation the object of the present invention is to provide transformer under a kind of enclosed water
The height dimension of device reduces the center of gravity of transformer overall structure, enhances its stability, and makes inside transformer pressure and outer
Portion's seawater pressure is consistent.
To achieve the above object, the present invention takes following technical scheme: transformer under a kind of enclosed water, feature exist
In: it includes shell, transformer winding, pedestal, closed corrugated expansion joint and monitoring cabin；The housing bottom is provided with bottom
Plate, top are provided with top cover, and the shell and the bottom plate weld, and the bottom plate is bolted on the pedestal；
The transformer winding is laterally lifted on bottom in the shell, offers annular groove in the top cover peripheral region of the shell, institute
Closed corrugated expansion joint is stated to be mounted in the annular groove；On the top cover of the shell, in the annular groove interposition
The place of setting is provided with the monitoring cabin；Except the transformer winding and by the top cover, monitoring cabin and closed corrugated expansion joint
Outside the case top component of composition, the shell rest part is full welding or full cast structure；By the case top group
Part after the installation is completed, then by the case top component is integrally welded on shell, forms full-enclosed structure.
Further, the enclosure interior is provided with I-shaped steel frame, is provided with cooling fin on the outside of the housing bottom.
Further, the monitoring cabin uses two-part cylindrical structure, is linked together between two sections using welding manner.
Further, any one section of cylindrical structure end in the monitoring cabin offers aperture, and is provided with connector.
Further, the closed corrugated expansion joint center line anchor ring is parallel with the top cover plane of the shell.
Further, the width of the annular groove is greater than the diameter of the closed corrugated expansion joint.
Further, be welded with hard tube below the closed corrugated expansion joint, described hard tube one end with it is described closed
Corrugated expansion joint connection；The hard tube other end is connected to the transformer oil of the enclosure interior, and through in the shell
Bottom.
The invention adopts the above technical scheme, which has the following advantages: 1, transformer of the invention is using closed
Corrugated expansion joint, it is internal to be full of transformer oil, when external pressure or inside transformer temperature change, closed bellows
The overall length of compensator also changes therewith, so as to cause volume change, carries out pressure compensation for underwater transformer.Wherein closed wave
Line pipe compensator is installed in the annular groove at the top of transformer shell, possesses enough benefits in the closed corrugated expansion joint of guarantee
Under the premise of repaying rate, the height dimension of large compensation amount corrugated expansion joint is effectively reduced, reduces transformer overall structure
Center of gravity, make its stability enhance.2, for the present invention in addition to case top component, shell rest part is full welding or full casting knot
Structure.Case top component after the installation is completed, then by top assembly is integrally welded on transformer shell, to reach totally-enclosed
State, can be long-term non-maintaining.3, the present invention is as compensation using closed bellows, when internal pressure increases, envelope
Shrouded bellows overall length increases；When internal pressure reduces, the overall length of closed bellows reduces.Closed corrugated expansion joint
Overall length variation causes its internal capacity to change, thus compensation transformation due to caused by transformer shell internal temperature and pressure change
The variation of device oil volume.So that inside transformer pressure is consistent with external seawater pressure.4, closed bellows of the invention
It is installed in the annular groove at the top of transformer shell, and makes closed corrugated expansion joint center line anchor ring and transformer shell top
Facial planes is parallel, reduces the height dimension of large compensation amount bellows, while also reducing the overall height of transformer, to drop
Low center of gravity, increases the stability of transformer.5, annular groove centerline length of the invention and closed corrugated expansion joint
Center line average length it is consistent, but the width of annular groove be greater than closed corrugated expansion joint diameter so that closed wave
Line pipe compensator has enough spaces freely to be stretched and compressed.In conclusion the present invention is suitable for underwater production of hydrocarbons
System.
Detailed description of the invention
Fig. 1 is housing bottom structural schematic diagram of the invention；
Fig. 2 is case top component structure diagram of the invention；
Fig. 3 is transformer winding structure schematic diagram of the invention；
Fig. 4 is closed corrugated expansion joint and hard tube structural schematic diagram of the invention；
Fig. 5 is monitoring cabin structure schematic diagram of the invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention 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
Not constituting a conflict with each other can be combined with each other.
As shown in fig. 1~fig. 5, the present invention provides transformer under a kind of enclosed water, which uses totally enclosed type knot
Structure comprising shell 1, transformer winding 2, pedestal, closed corrugated expansion joint 3 and monitoring cabin 4.1 bottom of shell is provided with
Bottom plate, top are provided with top cover；Shell 1 and bottom plate weld, and bottom plate is bolted on pedestal.Transformer winding 2 is horizontal
To bottom in shell 1 is lifted on, annular groove is offered in the top cover peripheral region of shell 1, closed corrugated expansion joint 3 is mounted on
In the annular groove, transformer compensator is used as by closed corrugated expansion joint 3, inside filled with transformer oil, internal pressure
When power increases, closed 3 overall length of corrugated expansion joint increases；When internal pressure reduces, the overall length of closed corrugated expansion joint 3
Reduce, the overall length variation of closed corrugated expansion joint 3 causes its internal capacity to change, so that compensation is due to 1 inside temperature of shell
Transformer oil volume change caused by degree and pressure change, so that inside transformer pressure is consistent with external seawater pressure.
On the top cover of shell 1, annular groove middle position is provided with monitoring cabin 4, monitors cabin 4 by connector and is connected to shell 1
On the interface that top has been reserved.I-shaped steel frame 5 is additionally provided with inside shell 1, for reinforcing 1 structural strength of shell and being made
Transformer winding 2；1 bottom outside of shell is provided with cooling fin 6, plays the role of thermally conductive and reinforcing rib.Except transformer winding 2 and
Outside the case top component be made of top cover, monitoring cabin 4 and closed corrugated expansion joint 3,1 rest part of shell is full weldering
It connects or full cast structure.After the installation is completed by case top component, then by case top component it is integrally welded on shell 1, from
And reach totally enclosed state, it can be long-term non-maintaining.
In above-described embodiment, as shown in figure 5, monitoring cabin 4 uses two-part cylindrical structure, welding side is used between two sections
Formula links together；Such structure is conducive to the arrangement of cable and the installation of electronic monitoring equipment, and facilitate two parts it
Between welding.Aperture is offered in monitoring 4 any one sections of cabin cylindrical structure end, and is provided with connector, is used for and the external world
Connection facilitates extraneous monitoring transformer.
In the various embodiments described above, closed 3 center line anchor ring of corrugated expansion joint is parallel with the top cover plane of shell 1, drop
The low height dimension of large compensation amount bellows, while the overall height of transformer is also reduced, to reduce center of gravity, increase
The stability of transformer.
In the various embodiments described above, the center line average length of annular groove centerline length and closed corrugated expansion joint 3
Unanimously, but the width of annular groove be greater than closed corrugated expansion joint 3 diameter so that closed corrugated expansion joint 3 has
It is freely stretched and is compressed in enough spaces.
In the various embodiments described above, be welded with hard tube 7 below closed corrugated expansion joint 3,7 one end of hard tube with it is closed
Corrugated expansion joint 3 is connected to, which is connected to the transformer oil inside shell 1, and 7 other end of hard tube is through to shell
Bottom in body 1.Wherein, which belongs to case top component.
In conclusion transformer of the invention is before work, it first should be to the sky between shell 1 and transformer winding 2
Between be full of pressure oil, make its internal oil pressure be higher than external pressure about 0.05Mpa.Transformer is when into the water, transformer shell
Internal pressure is 0.05Mpa bigger than hull outside always, to guarantee that shell 1 is not influenced by seawater pressure.
The various embodiments described above are merely to illustrate the present invention, and structure and size, setting position and the shape of each component are all can be with
It is varied, based on the technical solution of the present invention, the improvement and wait that all principles according to the present invention carry out individual part
With transformation, should not exclude except protection scope of the present invention.
Claims (6)
1. transformer under a kind of enclosed water, it is characterised in that: it includes shell, transformer winding, pedestal, closed bellows
Compensator and monitoring cabin；The housing bottom is provided with bottom plate, and top is provided with top cover, and the shell and the bottom plate weld,
And the bottom plate is bolted on the pedestal；The transformer winding is laterally lifted on bottom in the shell,
The top cover peripheral region of the shell offers annular groove, and the closed corrugated expansion joint is mounted in the annular groove, described
Closed corrugated expansion joint center line anchor ring is parallel with the top cover plane of the shell；On the top cover of the shell,
The annular groove middle position is provided with the monitoring cabin；Except the transformer winding and by the top cover, monitoring cabin and envelope
Outside the case top component that shrouded bellows compensator is constituted, the shell rest part is full welding or full cast structure；
After the installation is completed by the case top component, then by the case top component it is integrally welded on shell, is formed totally-enclosed
Formula structure.
2. transformer under a kind of enclosed water as described in claim 1, it is characterised in that: the enclosure interior is provided with I-shaped
Steel frame, the housing bottom outside are provided with cooling fin.
3. transformer under a kind of enclosed water as described in claim 1, it is characterised in that: the monitoring cabin is using two-part circle
Column construction is linked together using welding manner between two sections.
4. transformer under a kind of enclosed water as claimed in claim 3, it is characterised in that: any one section of circle in the monitoring cabin
Column construction end offers aperture, and is provided with connector.
5. transformer under a kind of enclosed water as described in claim 1, it is characterised in that: the width of the annular groove is greater than institute
State the diameter of closed corrugated expansion joint.
6. transformer under a kind of enclosed water as described in claim 1, it is characterised in that: the closed corrugated expansion joint
Lower section is welded with hard tube, and described hard tube one end is connected to the closed corrugated expansion joint；The hard tube other end and the shell
The transformer oil connection in internal portion, and through to the intracorporal bottom of the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810058714.6A CN108305747B (en) | 2018-01-22 | 2018-01-22 | Transformer under a kind of enclosed water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810058714.6A CN108305747B (en) | 2018-01-22 | 2018-01-22 | Transformer under a kind of enclosed water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108305747A CN108305747A (en) | 2018-07-20 |
| CN108305747B true CN108305747B (en) | 2019-07-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810058714.6A Active CN108305747B (en) | 2018-01-22 | 2018-01-22 | Transformer under a kind of enclosed water |
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| Country | Link |
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| CN (1) | CN108305747B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110379592B (en) * | 2019-08-05 | 2021-08-13 | 吉林大学 | Double-layer pressure compensation type underwater transformer |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206747887U (en) * | 2017-05-12 | 2017-12-15 | 沈阳市德信恒鑫波纹管有限责任公司 | A kind of inside diameter of bel Clamp for welding |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100434765B1 (en) * | 2004-01-12 | 2004-06-09 | 이종문 | apparatus of transformer and manufacturing method thereof |
| CN203218068U (en) * | 2013-03-18 | 2013-09-25 | 石绥 | Underwater seal box provided with transformers |
| CN204480850U (en) * | 2015-04-18 | 2015-07-15 | 孙艺夫 | Be suitable for the outer oily vertical metal bellow oil conservator transported |
| CN107369523A (en) * | 2017-08-30 | 2017-11-21 | 华中科技大学 | A kind of underwater transformer of Natural Heat Convection formula |
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2018
- 2018-01-22 CN CN201810058714.6A patent/CN108305747B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206747887U (en) * | 2017-05-12 | 2017-12-15 | 沈阳市德信恒鑫波纹管有限责任公司 | A kind of inside diameter of bel Clamp for welding |
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| Publication number | Publication date |
|---|---|
| CN108305747A (en) | 2018-07-20 |
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