CN205789503U - A kind of sound arrester being applicable to power capacitor - Google Patents
A kind of sound arrester being applicable to power capacitor Download PDFInfo
- Publication number
- CN205789503U CN205789503U CN201620497085.3U CN201620497085U CN205789503U CN 205789503 U CN205789503 U CN 205789503U CN 201620497085 U CN201620497085 U CN 201620497085U CN 205789503 U CN205789503 U CN 205789503U
- Authority
- CN
- China
- Prior art keywords
- blimp
- sound arrester
- power capacitor
- shell
- sleeve pipe
- 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.)
- Active
Links
Landscapes
- Pipe Accessories (AREA)
Abstract
The utility model discloses a kind of sound arrester being applicable to power capacitor, described power capacitor includes cap, at the bottom of housing and shell, and described sound arrester includes top blimp, bottom blimp, acoustic damping materials and sealing ring, described top blimp is covered in described cap and housing described with the part that described cap is connected, described bottom blimp be covered at the bottom of described shell and with the described housing of part being connected at the bottom of described shell, described top blimp and described bottom blimp are equipped with inner chamber, described acoustic damping materials are filled in the inner chamber of described top blimp and described bottom blimp, the sleeve pipe of described power capacitor passes described top blimp, described sealing ring is for sealing the gap between described sleeve pipe and described top blimp.
Description
Technical field
This utility model relates to high-tension electricity noise of equipment control field, particularly relates to one and is applicable to electric power electricity
The sound arrester of container.
Background technology
The noise of capacitor is owing to capacitor is under action of alternative electric field, makes the pole plate of capacitor by alternation
Electric field force effect and produce vibration, pass to shell by connected structure and capacitor impregnant, draw
The vibration playing capacitor case produces noise and to ambient radiation.In DC transmission engineering, alternating current filter and
DC filter is all based on double-tuned, and the noise frequency produced during capacitor actual motion is main with two
The frequency planting harmonic wave is relevant.As for the DC filter capacitors of N1 time and N2 two kinds of harmonic waves,
Its main noise frequency is: 50N1,50N2,100N1,100N2,50 (N1-N2) and 50 (N1+N2)
Hz totally 6 frequencies.For N1 the ac filter capacitor with N2 two kinds of harmonic waves, it is main
Noise frequency be: 100,100N1,100N2,50 (N1-1), 50 (N1+1), 50 (N2-1),
50 (N2+1), 50 (N1-N2) and 50 (N1+N2) totally 9 frequencies.
Currently for current conversion station power capacitor noise abatement mainly by increase near Capacitor stack every
Sound barrier, sound insulating material typically is provided with porous material characteristic, has reduction vibration, the function of absorption of noise,
Can effectively reflect and the noise of absorption capacitor generation.But screening arrangement generally there are following shortcoming:
1. high due to capacitor pylon, acoustic barrier area is big, and construction costs is high；2. use barrier-type sound insulation waste
Material, uses the sound insulation of capacitor packaging type then to affect heat radiation.
Utility model content
In order to make up the deficiencies in the prior art, this utility model provides a kind of sound insulation being applicable to power capacitor
Device.
Its technical scheme is as follows:
A kind of sound arrester being applicable to power capacitor, described power capacitor includes sleeve pipe, cap, shell
At the bottom of body and shell, and described sound arrester includes top blimp, bottom blimp, acoustic damping materials and sealing ring,
Described top blimp is covered in described cap and housing described with the part that described cap is connected, the described end
Portion's blimp be covered at the bottom of described shell and with the described housing of part being connected at the bottom of described shell, the sound insulation of described top
Cover and described bottom blimp are equipped with inner chamber, and described acoustic damping materials are filled in described top blimp and described
In the inner chamber of bottom blimp, the sleeve pipe of described power capacitor passes described top blimp, described sealing
Circle is for sealing the gap between described sleeve pipe and described top blimp.
Described top blimp is provided with two collar aperture, and described collar aperture coordinates with described shell clearance, described
Sealed by described sealing ring between sleeve pipe and described collar aperture.
The material of described top blimp and described bottom blimp is the one in rustless steel, aluminum and plastic cement.
Described acoustic damping materials include one or more combinations in aluminum fiberboard, aluminum microperforated panel and rock wool.
Described sealing ring uses elastomeric material.
The height of described top blimp and/or described bottom blimp is described power capacitor height
About 1/5.
Advantageous Effects of the present utility model is as follows:
Take into full account self structure characteristic and the operating mode of power capacitor, realize optimal fall with minimum cost
Make an uproar effect, perfect heat-dissipating, easy for installation；
Simple and compact for structure, service life is long, safe and reliable；
Save acoustic damping materials.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the power capacitor of this utility model one embodiment；
Fig. 2 is the amplitude-versus-frequency curve of the A weighting acoustical power of this utility model one embodiment；
Fig. 3 is six areal acceleration amplitude-versus-frequency curves of this utility model one embodiment；
Fig. 4 is the sound arrester schematic diagram being arranged on power capacitor of this utility model one embodiment；
Fig. 5 is profile before and after the top blimp of this utility model one embodiment or bottom blimp；
Fig. 6 is top blimp or the left and right profile of bottom blimp of this utility model one embodiment；
Fig. 7 is the top view of the top blimp of this utility model one embodiment；
In figure, 1-sleeve pipe；2-cap；3-housing；At the bottom of 4-shell；5-sealing ring；6-top blimp；Bottom 7-every
Sound cover；8-acoustic damping materials, 9-collar aperture.
Detailed description of the invention
Below with reference to the drawings and specific embodiments the utility model is further explained explanation.
Seeing Fig. 1, power capacitor includes at the bottom of sleeve pipe 1, cap 2, housing 3 and shell 4, and housing 3 connects
At the bottom of cap 2 and shell 4, two sleeve pipes 1 are located on cap 2, as terminals.
See Fig. 2, power capacitor is carried out single frequency excitation, test the amplitude-frequency characteristic of its A weighting acoustical power
Curve, described A weighting acoustical power be the sound heard using human ear as judgment criteria, in low-frequency range
0～350Hz and high band more than acoustical power during 1300Hz less than 50dB, therefore this power capacitor exists
The noise produced when low-frequency range or high band need not take noise reduction measure, and during the work of this power capacitor
At the noise that Mid Frequency produces, then need in the selection of corresponding noise reduction measure, especially acoustic damping materials.
See Fig. 3, to power capacitor single frequency excitation, test the acceleration in six faces of power capacitor,
Test result shows, the vibration velocity of 4 at the bottom of cap 2 and shell is much larger than remaining four face, and electric capacitor is described
The noise of device is mainly derived from the noise of 4 at the bottom of cap 2 and shell, and sound arrester of the present utility model base just
Design in this point.
Seeing Fig. 4, sound arrester is arranged on power capacitor, sound arrester include top blimp 6,
Bottom blimp 7, acoustic damping materials 8 and sealing ring 5, top blimp 6 is covered in cap 2 and and shell
The partial shell 3 of lid 2 connection, bottom blimp 7 be covered at the bottom of shell 4 and with at the bottom of shell 4 parts being connected
Housing 3, top blimp 6 and bottom blimp 7 are equipped with inner chamber, acoustic damping materials 8 be filled in top every
In the inner chamber of sound cover 6 and bottom blimp 7, the sleeve pipe 1 of power capacitor is through top blimp 6, close
Seal 5 is for sealing the gap between sleeve pipe 1 and top blimp 6；
Top blimp 6 is provided with two collar aperture 9, collar aperture 9 and sleeve pipe 1 matched in clearance, sleeve pipe 1 He
Sealed by sealing ring 5 between collar aperture 9.
The material of top blimp 6 and bottom blimp 7 is the one in rustless steel, aluminum and plastic cement；
Acoustic damping materials 8 include one or more combinations in aluminum fiberboard, aluminum microperforated panel and rock wool；
Sealing ring 5 uses elastomeric material；
The height of top blimp 6 and/or bottom blimp 7 is about the 1/5 of power capacitor height.
Seeing cross section view before and after Fig. 5, top blimp 6 or bottom blimp 7 is an alternative embodiment,
Top blimp 6 or bottom blimp 7 are provided with inner chamber 8, and inner chamber 8 is used for filling acoustic damping materials.
Seeing Fig. 6, the left and right profile of top blimp or bottom blimp is an alternative embodiment, top
Blimp or bottom blimp are provided with inner chamber, and acoustic damping materials 8 are filled in inner chamber.
Seeing Fig. 7, the top view of top blimp 6 is an alternative embodiment, and top blimp 6 is provided with two
Individual collar aperture 9, two sleeve pipes 1 of power capacitor are through two collar aperture 9 of top blimp 6, edge
Top blimp 6 is divided into two parts, by two parts when of installation by two collar aperture 9 center line connecting directions
Welding.
The above, only this utility model preferably detailed description of the invention, but protection model of the present utility model
Enclose and be not limited thereto, the technology model that any those familiar with the art discloses at this utility model
In enclosing, the change that can readily occur in or replacement, all should contain within protection domain of the present utility model.Cause
This, protection domain of the present utility model should be as the criterion with scope of the claims.
Claims (6)
1. be applicable to a sound arrester for power capacitor, described power capacitor include sleeve pipe, cap,
At the bottom of housing and shell, and described sound arrester is characterised by: include top blimp, bottom blimp, fall
Making an uproar material and sealing ring, described top blimp is covered in described cap and the part being connected with described cap
Described housing, described bottom blimp be covered at the bottom of described shell and with the described shell of part being connected at the bottom of described shell
Body, described top blimp and described bottom blimp are equipped with inner chamber, and described acoustic damping materials are filled in described
In the inner chamber of top blimp and described bottom blimp, the sleeve pipe of described power capacitor passes described top
Blimp, described sealing ring is for sealing the gap between described sleeve pipe and described top blimp.
Sound arrester the most according to claim 1, it is characterised in that: described top blimp is provided with
Two collar aperture, described collar aperture coordinates with described shell clearance, logical between described sleeve pipe and described collar aperture
Cross described sealing ring to seal.
Sound arrester the most according to claim 1, it is characterised in that: described top blimp and described
Bottom blimp material be rustless steel, aluminum and nonmetal in one.
Sound arrester the most according to claim 1, it is characterised in that: described acoustic damping materials include that aluminum is fine
One or more combinations in dimension plate, microperforated panel and rock wool.
Sound arrester the most according to claim 1, it is characterised in that: described sealing ring uses rubber material
Material.
Sound arrester the most according to claim 1, it is characterised in that: described top blimp and/or
The height of described bottom blimp is the 1/5 of described power capacitor height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620497085.3U CN205789503U (en) | 2016-05-26 | 2016-05-26 | A kind of sound arrester being applicable to power capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620497085.3U CN205789503U (en) | 2016-05-26 | 2016-05-26 | A kind of sound arrester being applicable to power capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205789503U true CN205789503U (en) | 2016-12-07 |
Family
ID=57408300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620497085.3U Active CN205789503U (en) | 2016-05-26 | 2016-05-26 | A kind of sound arrester being applicable to power capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205789503U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105826071A (en) * | 2016-05-26 | 2016-08-03 | 上海思源电力电容器有限公司 | Sound insulation device applicable to power capacitor |
-
2016
- 2016-05-26 CN CN201620497085.3U patent/CN205789503U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105826071A (en) * | 2016-05-26 | 2016-08-03 | 上海思源电力电容器有限公司 | Sound insulation device applicable to power capacitor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109028349B (en) | Sound insulation cover, air conditioner outdoor unit and noise reduction method | |
| CN205789503U (en) | A kind of sound arrester being applicable to power capacitor | |
| CN205160406U (en) | Noise power generator | |
| CN109887728A (en) | A kind of denoising structure for dry-type transformer | |
| CN206540981U (en) | A kind of anti-interference local discharge ultrasonic sensor | |
| CN213691427U (en) | Multistage noise reduction device for high-voltage filter capacitor | |
| CN203826206U (en) | Vibration damping fixing device of transformer station power capacitor | |
| CN109024951A (en) | One kind excluding rattle devices | |
| CN105826071A (en) | Sound insulation device applicable to power capacitor | |
| CN208241452U (en) | Magneto noise-proofing outer cover | |
| CN216412798U (en) | Vibration and noise reduction device for transformer oil tank | |
| CN101615511B (en) | Low-noise power capacitor with microperforated panel and solid panel combining structure | |
| CN101615510B (en) | Power capacitor with double bottom surfaces and low noise | |
| CN212928000U (en) | Diesel generating set capable of preventing liquid leakage | |
| CN210403419U (en) | Vibration/noise reduction device of transformer | |
| CN208738039U (en) | A kind of Low noise filter capacitor | |
| CN108443399B (en) | Noise reduction damping device | |
| CN209087590U (en) | A kind of anti-interference condenser | |
| CN204857460U (en) | Device of making an uproar falls in damping sound insulation sleeve for power capacitor | |
| CN208298700U (en) | low noise capacitor | |
| CN206236419U (en) | A kind of power capacitor noise reduction module | |
| CN207634184U (en) | The attachment device in mute power generator group silencing exhaust pipe road | |
| CN208991183U (en) | Ultrasonic vibration apparatus | |
| CN205723121U (en) | Reactor noise reduction system | |
| CN207302882U (en) | Low-noise electrical capacitor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |