CN206877812U - A kind of oil immersed type panel sqouynd absorption lowering noise processing unit - Google Patents
A kind of oil immersed type panel sqouynd absorption lowering noise processing unit Download PDFInfo
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- CN206877812U CN206877812U CN201720740034.3U CN201720740034U CN206877812U CN 206877812 U CN206877812 U CN 206877812U CN 201720740034 U CN201720740034 U CN 201720740034U CN 206877812 U CN206877812 U CN 206877812U
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- unit
- plate unit
- fuel tank
- sound absorbing
- panel
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- 238000010521 absorption reaction Methods 0.000 title claims abstract description 19
- 239000002828 fuel tank Substances 0.000 claims abstract description 35
- 239000006096 absorbing agent Substances 0.000 claims abstract description 20
- 230000035939 shock Effects 0.000 claims abstract description 20
- 239000012530 fluid Substances 0.000 claims abstract description 12
- 238000013016 damping Methods 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 9
- 229910045601 alloy Inorganic materials 0.000 claims description 6
- 239000000956 alloy Substances 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 4
- 238000011946 reduction process Methods 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 230000007774 longterm Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 23
- 239000004411 aluminium Substances 0.000 description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 9
- 229910052782 aluminium Inorganic materials 0.000 description 9
- 230000005540 biological transmission Effects 0.000 description 6
- 229910000976 Electrical steel Inorganic materials 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 4
- 230000009466 transformation Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Landscapes
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Regulation Of General Use Transformers (AREA)
Abstract
The utility model discloses a kind of oil immersed type panel sqouynd absorption lowering noise processing unit, described device is made up of multiple panel sound absorbing modules, the panel sound absorption unit is made up of plate unit, multiple vibration absorption units and multiple support units, the plate unit is sound absorption panel, for being coupled with the sound wave in fluid；The damper unit is made up of shock absorber array, and plate unit and fuel tank madial wall right angle setting, for reducing the panel plane forced vibration of plate unit；The support unit is used for the stable fixation of support plate unit；Methods described is detected using sound level meter to fuel tank noise, and panel sound absorbing module is fixed on corresponding fuel tank madial wall according to result of detection, the panel sound absorbing module is absorbed power equipment noise；Described device cost is low and material structure is safe, can the non-maintaining long-term use in oil tank of transformer.
Description
Technical field
Power transmission and transformation field of environment protection is the utility model is related to, more particularly, to a kind of oil immersed type panel sqouynd absorption lowering noise
Processing unit.
Background technology
Power transmission and transformation noise is the subject matter of power transmission and transformation environmental pollution, and the related a large amount of practical studies of power transmission and transformation noise engineering are surveyed
Take temperature bright, this bulk noise of oil-immersed type power equipment is a main source of project of transmitting and converting electricity noise problem, to oil immersed type
Power equipment body carries out noise reduction control, has generally been accepted to be effectively improved the most directly and basic of transformer station's noise circumstance
Means.Noise reduction technology measure of the relevant industries personnel of power equipment to oil-immersed type power apparatus body both at home and abroad is carried out at present
Multi-party exploration, but the technical measures generally existing cost is too high, weak heat-dissipating, it is difficult in maintenance the deficiencies of, cause to implement these
Cost effectiveness during noise reduction measure is too high, and popularization and application are brought with limitation.
Utility model content
In order to solve the problems such as existing noise reduction technology cost existing for background technology is too high, difficult in maintenance, the utility model
For the liquid acoustic path of oil-immersed type power noise of equipment transmission, it is proposed that a kind of noise reduction using oil immersed type panel sound absorption structure
Processing unit；
A kind of oil immersed type panel sqouynd absorption lowering noise processing unit, described device are installed on fuel tank for power device madial wall, including
One or more panel sound absorbing modules, the panel sound absorbing module include at least one plate unit, one or more vibration damping lists
Member and support unit；
Plate unit, the plate unit are used to be coupled with the sound wave in fluid；
Damper unit, an installation end face of the damper unit is vertically connected with plate unit, for reducing plate list
The outer forced vibration of the panel plane of member；
Support unit, the support unit is used for the stable fixation of support plate unit, and keeps fixing with fuel tank madial wall
Distance；
Further, the combined arranging mode of the multiple panel sound absorbing module is arranged for the multiple panel sound absorbing module
On fuel tank madial wall, the plate unit of each panel sound absorbing module is parallel with fuel tank madial wall, is completely immersed in fluid
Cavity between box inside wall and plate unit；Another installation end face and the oil of the damper unit of the panel sound absorbing module
Box wall is vertically connected, and support unit is fixed between plate unit and fuel tank madial wall, each panel sound absorbing module
Plate unit it is equal with the distance of fuel tank madial wall；
Further, the combined arranging mode of the multiple panel sound absorbing module is to appoint in the multiple panel sound absorbing module
Anticipate two or more superpositions, allow fluid be completely immersed between box inside wall and plate unit and each plate unit between
Cavity；Another installation end face of the damper unit of the orlop panel sound absorbing module of the superposition is vertical with fuel tank madial wall
It is connected, support unit is fixed between plate unit and fuel tank madial wall；The damper unit of non-orlop panel sound absorbing module
The other end installs end face and the plate unit of the panel sound absorbing module of its lower floor is vertically connected, and supporting module is fixed on the laminate part
Between unit and lower floor's plate unit；
Further, the plate unit is metallic plate, alloy sheets, insulating board or ceramic wafer；
Further, the full-size of the non-thickness direction of plate unit is not less than the sound wave that noise reduction process is treated in fluid
The 1/20 of wavelength；
Further, when the plate unit is metallic plate or alloy sheets, plate unit ground connection, its earth terminal with
The earth terminal of fuel tank madial wall is connected；
Further, the damper unit is evenly arranged on plate unit；
Further, the damper unit is wire strands shock absorber, wire shock absorber, oil damping shock absorber or rubber
Glue damping shock absorber；
Further, the damper unit is less than or equal to per square meter 1kN/ in the global stiffness in plate cell orientation
mm；
Further, the supporting module includes insulating paper cushion block and angle steel；The supporting module includes insulation paper washer
Block and fastener.
The beneficial effects of the utility model are：The technical solution of the utility model, give for oil-immersed type power equipment
The liquid acoustic path of noise transmission and a kind of oil immersed type panel sqouynd absorption lowering noise processing unit designed, not only cost is low for described device
Honest and clean, the inner space of occupancy is small, material, structure safety, can be long-term use of inside oil tank of transformer, non-maintaining, particularly suitable
In the suppression of the low frequency spectrum lines noise of the oil-immersed type power equipment such as oil-filled transformer, reactor.Further, since power equipment is made an uproar
Acoustic frequency is made up of specific multiple line spectrum noises related to power frequency substantially, and power equipment body structure is similar, electric in industry
Power equipment oil acoustic characteristic again it is essentially identical, the utility model proposes device be especially susceptible to realize standardization, modularization
Make and install.
Brief description of the drawings
By reference to the following drawings, illustrative embodiments of the present utility model can be more fully understood by：
Fig. 1 is a kind of multilayer oil immersed type panel for 50Hz power frequency electric power equipment of the utility model embodiment
The structure chart of sqouynd absorption lowering noise processing unit；
Fig. 2 is a kind of individual layer oil immersed type panel for 50Hz power frequency electric power equipment of the utility model embodiment
The structure chart of sqouynd absorption lowering noise processing unit.
Embodiment
Illustrative embodiments of the present utility model are introduced with reference now to accompanying drawing, however, the utility model can use many
Different forms is implemented, and is not limited to embodiment described herein, there is provided these embodiments are in order at large and complete
Open the utility model entirely, and fully pass on the scope of the utility model to person of ordinary skill in the field.For
Term in the illustrative embodiments being illustrated in the accompanying drawings is not to restriction of the present utility model.In the accompanying drawings, identical
Cells/elements use identical reference.
Unless otherwise indicated, term (including scientific and technical terminology) used herein has to person of ordinary skill in the field
It is common to understand implication.Further it will be understood that the term limited with usually used dictionary, be appreciated that and its
The linguistic context of association area has consistent implication, and is not construed as Utopian or overly formal meaning.
Fig. 1 is a kind of multilayer oil immersed type panel for 50Hz power frequency electric power equipment of the utility model embodiment
The structure chart of sqouynd absorption lowering noise processing unit, the multilayer oil immersed type panel sqouynd absorption lowering noise processing unit are installed on fuel tank for power device
Madial wall, it is made up of 20 groups three layers of panel sound absorbing module, described device is laid on fuel tank madial wall, and laying area accounts for fuel tank
The 15% of madial wall, main distribution and low-pressure side；
The panel sound absorbing module includes：
Plate unit 101, totally three layers of the plate unit 101, first layer be thickness 2.5mm aluminium sheet, the 2.5mm aluminium
Plate and 104 vertical spacing of fuel tank madial wall be 10mm, and the second layer is thickness 1.8mm aluminium sheet, the 1.8mm aluminium sheets and 2.5mm
Spacing between aluminium sheet is 15mm, and third layer is thickness 3mm insulating board, the insulating board with before 1.8mm aluminium sheets
Spacing is 10mm, and the planar dimension of the three ply board part is long 1800mm, wide 400mm；The plate unit 101 is used for and oil
Sound wave in liquid is coupled；
Damper unit 102, the damper unit 102 are made up of 20 wire strands shock absorbers, wherein 4 wire strands subtract
The device that shakes is evenly distributed between the 2.5mm aluminium sheets of fuel tank madial wall 104 and the plate unit 101,6 wire strands vibration dampings
Device is evenly distributed between two layers of aluminium sheet of the plate unit 101, and 10 wire strands shock absorbers are evenly distributed on the plate
Between the 1.8mm aluminium sheets and insulating board of part unit 101, two installation end EDS maps of the shock absorber are vertical with both sides plate
It is connected, forced vibration outside the panel plane for reducing plate unit；
Support unit 103, the support unit 103 are insulating paper cushion block and angle steel, are stablized for support plate unit solid
It is fixed, and keep fixed range with fuel tank madial wall 104；
The Multilayer panel sqouynd absorption lowering noise processing unit for 50Hz power frequency electric power equipment of the embodiment is main
For noise frequency be 100Hz, 200Hz, 300Hz and 400Hz；
Further, earth terminal of the earth terminal of the damper unit 102 and plate unit 101 with fuel tank madial wall
It is connected, ground wire 105 is copper cash；
Further, the plate unit 101 can also be metallic plate, alloy sheets or ceramic wafer；
Further, the full-size of the 101 non-thickness direction of plate unit, which is not less than in fluid, treats noise reduction process
The 1/20 of wave length of sound；
Further, the damper unit 102 be wire strands shock absorber, wire shock absorber, oil damping shock absorber or
Rubber damping vibration attenuation device；
Further, the damper unit 102 is less than or equal to often put down in the global stiffness on the direction of plate unit 101
Rice 1kN/mm；
Further, the supporting module 103 is made up of insulating paper cushion block with fastener.
Fig. 2 is a kind of individual layer oil immersed type panel for 50Hz power frequency electric power equipment of the utility model embodiment
The structure chart of sqouynd absorption lowering noise processing unit, the individual layer oil immersed type panel sqouynd absorption lowering noise processing unit are installed on fuel tank for power device
Madial wall, it is made up of 8 single sheathing sound absorbing modules, described device is laid on fuel tank madial wall, and laying area accounts for fuel tank
The 10% of madial wall, is mainly distributed on low-pressure side；
The panel sound absorbing module includes：
Plate unit 201, the plate unit 201 are the compound silicon steel plate of individual layer, and the compound silicon steel plate has 6 thickness degree
It is overlapped into for 0.35mm silicon steel sheet heap, the planar dimension of plate is long 2000mm, wide 600mm, the compound silicon steel plate and oil
204 vertical spacing of box wall is 32mm, and the plate unit 201 is used to be coupled with the sound wave in fluid；
Damper unit 202, the damper unit 202 are made up of 6 oil damping shock absorbers, 6 oil damping shock absorbers
It is direct with fuel tank madial wall 204 to be evenly distributed on compound silicon steel plate, the two installation end EDS maps and biside plate of the shock absorber
Part is vertically connected, forced vibration outside the panel plane for reducing plate unit 201；
Support unit 203, the support unit 203 are insulating paper cushion block and fastener, steady for support plate unit 201
It is fixed fixed, and keep fixed range with fuel tank madial wall 204；
The single sheathing sqouynd absorption lowering noise processing unit for 50Hz power frequency electric power equipment of the embodiment is main
For noise frequency be 100Hz and 200Hz；
Further, earth terminal phase of the earth terminal of the damper unit 202 and plate unit with fuel tank madial wall
Even, ground wire 205 is copper cash；
Further, the plate unit 201 can also be metallic plate, alloy sheets, insulating board or ceramic wafer；
Further, the full-size of the 201 non-thickness direction of plate unit, which is not less than in fluid, treats noise reduction process
The 1/20 of wave length of sound；
Further, the damper unit 202 be wire strands shock absorber, wire shock absorber, oil damping shock absorber or
Rubber damping vibration attenuation device；
Further, the damper unit 202 is less than or equal to every in the global stiffness on the direction of plate unit 201
Square meter 1kN/mm；
Further, the supporting module 203 is made up of insulating paper cushion block with angle steel.
Obviously, those skilled in the art can carry out various changes and modification without departing from this practicality to the utility model
New spirit and scope.So, if these modifications and variations of the present utility model belong to the utility model claims and
Within the scope of its equivalent technologies, then the utility model is also intended to comprising including these changes and modification.
Claims (10)
1. a kind of oil immersed type panel sqouynd absorption lowering noise processing unit, described device are installed on fuel tank for power device madial wall, including one
Individual or multiple panel sound absorbing modules, the panel sound absorbing module include at least one plate unit, one or more damper units
And support unit；
Plate unit, the plate unit are used to be coupled with the sound wave in fluid；
Damper unit, an installation end face of the damper unit is vertically connected with plate unit, for reducing plate unit
The outer forced vibration of panel plane；
Support unit, the support unit is used for the stable fixation of support plate unit, and keeps fixed range with fuel tank madial wall,
The cavity for alloing fluid to be completely immersed between box inside wall and plate unit.
2. device according to claim 1, it is characterised in that：The combined arranging mode of the multiple panel sound absorbing module is
The multiple panel sound absorbing module is arranged on fuel tank madial wall, the plate unit of each panel sound absorbing module with fuel tank madial wall
It is parallel；Another installation end face of the damper unit of the panel sound absorbing module is vertically connected with fuel tank madial wall, support unit
Be fixed between plate unit and fuel tank madial wall, the plate unit of each panel sound absorbing module and fuel tank madial wall away from
From equal.
3. device according to claim 1, it is characterised in that：The combined arranging mode of the multiple panel sound absorbing module is
Any two or multiple superpositions, allow fluid to be completely immersed in box inside wall and plate list in the multiple panel sound absorbing module
Cavity between member and between each plate unit；The damper unit of the orlop panel sound absorbing module of the superposition another
Installation end face is vertically connected with fuel tank madial wall, and support unit is fixed between plate unit and fuel tank madial wall；Non- orlop
The other end installation end face phase vertical with the plate unit of the panel sound absorbing module of its lower floor of the damper unit of panel sound absorbing module
Even, supporting module is fixed between the laminate part unit and lower floor's plate unit.
4. device according to claim 1, it is characterised in that：The plate unit is metallic plate, alloy sheets, insulating board
Or ceramic wafer.
5. device according to claim 1, it is characterised in that：The full-size of the non-thickness direction of plate unit is not small
The 1/20 of the wave length of sound of noise reduction process is treated in fluid.
6. device according to claim 4, it is characterised in that：When the plate unit is metallic plate or alloy sheets, institute
Plate unit ground connection is stated, its earth terminal is connected with the earth terminal of fuel tank madial wall.
7. device according to claim 1, it is characterised in that：The damper unit is evenly arranged on plate unit.
8. device according to claim 1, it is characterised in that：The damper unit is wire strands shock absorber, wire
Shock absorber, oil damping shock absorber or rubber damping vibration attenuation device.
9. device according to claim 1, it is characterised in that：The damper unit is in plate cell orientation
Global stiffness is less than or equal to per square meter 1kN/mm.
10. device according to claim 1, it is characterised in that：The supporting module includes insulating paper cushion block and angle steel,
Or including insulating paper cushion block and fastener.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720740034.3U CN206877812U (en) | 2017-06-23 | 2017-06-23 | A kind of oil immersed type panel sqouynd absorption lowering noise processing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720740034.3U CN206877812U (en) | 2017-06-23 | 2017-06-23 | A kind of oil immersed type panel sqouynd absorption lowering noise processing unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206877812U true CN206877812U (en) | 2018-01-12 |
Family
ID=61334219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720740034.3U Active CN206877812U (en) | 2017-06-23 | 2017-06-23 | A kind of oil immersed type panel sqouynd absorption lowering noise processing unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206877812U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107240490A (en) * | 2017-06-23 | 2017-10-10 | 中国电力科学研究院 | A kind of oil immersed type panel sqouynd absorption lowering noise processing unit and method |
| CN110875127A (en) * | 2018-08-29 | 2020-03-10 | 中国电力科学研究院有限公司 | Oil damping vibration attenuation device for transformer and oil-immersed transformer |
-
2017
- 2017-06-23 CN CN201720740034.3U patent/CN206877812U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107240490A (en) * | 2017-06-23 | 2017-10-10 | 中国电力科学研究院 | A kind of oil immersed type panel sqouynd absorption lowering noise processing unit and method |
| CN107240490B (en) * | 2017-06-23 | 2024-03-12 | 中国电力科学研究院 | Sound absorption and noise reduction treatment device and method for oil immersed panel |
| CN110875127A (en) * | 2018-08-29 | 2020-03-10 | 中国电力科学研究院有限公司 | Oil damping vibration attenuation device for transformer and oil-immersed transformer |
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