CN101241797A - Noise reduction device and method for current conversion transformer - Google Patents
Noise reduction device and method for current conversion transformer Download PDFInfo
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- CN101241797A CN101241797A CNA2008100074584A CN200810007458A CN101241797A CN 101241797 A CN101241797 A CN 101241797A CN A2008100074584 A CNA2008100074584 A CN A2008100074584A CN 200810007458 A CN200810007458 A CN 200810007458A CN 101241797 A CN101241797 A CN 101241797A
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- 238000006243 chemical reaction Methods 0.000 title description 2
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- 230000004888 barrier function Effects 0.000 claims abstract description 73
- 238000009413 insulation Methods 0.000 claims description 33
- 238000007789 sealing Methods 0.000 claims description 4
- 239000011810 insulating material Substances 0.000 claims description 3
- 230000008439 repair process Effects 0.000 claims description 3
- 230000001603 reducing effect Effects 0.000 abstract description 4
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- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
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Abstract
The present invention presents a noise reducing device for the converter transformer and the method thereof. In the invention, the noise reducing device comprises the following components: a first sound insulating barrier (104) which is permanently connected to the top of the converter transformer (102) and is provided with a first edge (104a) and a second edge (104b); a second sound insulating barrier (106) which is permanently connected between the side surface of the converter transformer (102) and the cooler and is permanently connected to the first sound insulating barrier (104); a first sound insulating connecting plate (108) which is connected with the side surface which is on a first fire wall (12) and faces the converter transformer (102) and is detachably lapped with the first edge (104a); and a second sound insulating connecting plate (110) which is connected with the side surface which is on the second fire wall (12) and faces the converter transformer (102) and is detachably lapped with the second edge (104b). Through the invention, the installing and detaching can be conveniently executed when the excellent noise reducing effect is obtained.
Description
Technical field
The present invention relates to noise abatement, relate in particular to the denoising device and the method that are used for converter transformer.
Background technology
During the converter transformer operation, the D.C. magnetic biasing that flows through in a large amount of harmonic waves that produce because of converter valve and the change of current modified line circle, noise was obviously bigger than normal when the noise ratio AC transformer was moved when making the converter transformer operation, needed the noise source of keypoint treatment when being the current conversion station noise abatement.
In other high voltage DC engineerings, the converter transformer noise abatement has following method:
Barrier method before the converter transformer.This method is to install an acoustic barrier before the converter transformer cooler or between converter transformer body and the cooler additional, its shortcoming is that effect is limited, and shutoff is imperfect, and noise is never blown out at the shutoff top, and when converter transformer is changed, need remove whole acoustic barrier, waste time and energy.
The BOX-IN method.This method is installed the shutoff frame for utilize the both sides fire compartment walls after converter transformer installs, and is sealed between the fire compartment wall acoustic barrier that also installs and fixes simultaneously with converter transformer is whole between converter transformer body and cooler.The advantage of this method is that the noise plugging effect is good, and body plenum was less than normal when shortcoming was the converter transformer operation, need remove whole shutoff when changing converter transformer, and is more complicated than last method.
Summary of the invention
One or more problems in view of the above the present invention proposes the denoising device and the method that are used for converter transformer, and purpose is can install and remove device easily when reaching good noise reduction.
According to an aspect of the present invention, provide a kind of denoising device that is used for converter transformer, this device comprises: first acoustic barrier, be fixedly connected on the end face of converter transformer, and have first edge and second edge; Second acoustic barrier is fixedly connected between the side and cooler of converter transformer, and is fixedly connected on first acoustic barrier; The first sound insulation fishplate bar is connected in first fire wall on the side of converter transformer, and removably overlaps with first edge; And second sound insulation fishplate bar, be connected in second fire wall on the side of converter transformer, and removably overlap with second edge.
Wherein, first edge has first recess, and first edge removably overlaps by first recess and the first sound insulation fishplate bar; Second edge has second recess, and second edge removably overlaps by second recess and the second sound insulation fishplate bar.
This denoising device also comprises: first seal is used to seal the lap-joint of first edge and the first sound insulation fishplate bar; And second seal, be used to seal the lap-joint of second edge and the second sound insulation fishplate bar.Wherein, first seal and second seal are dismountable.
Wherein, first acoustic barrier is fixedlyed connected with the end face of converter transformer by one or more first fixtures.Second acoustic barrier is fixedlyed connected with the side of converter transformer by one or more second fixtures.
Wherein, first acoustic barrier and/or second acoustic barrier are made of sound insulating material.First acoustic barrier and/or second acoustic barrier by a plurality of part detachables be spliced.
According to another aspect of the present invention, proposed a kind of noise-reduction method that is used for converter transformer, this method may further comprise the steps: step 1 is fixedly connected on first acoustic barrier end face of converter transformer, wherein, first acoustic barrier has first edge and second edge; Step 2 is fixedly connected on second acoustic barrier between the side and cooler of converter transformer; Step 3 is fixedly connected on first acoustic barrier with second acoustic barrier; Step 4 is connected in first fire compartment wall and second fire wall on the side of converter transformer with the first sound insulation fishplate bar and the second sound insulation fishplate bar respectively; And step 5, respectively the first sound insulation fishplate bar and second the is insulated against sound fishplate bar and first edge and second edge removably overlap.
This noise-reduction method is further comprising the steps of: the lap-joint that seals first edge and the first sound insulation fishplate bar with first seal; And the lap-joint that seals second edge and the second sound insulation fishplate bar with second seal.In addition, changing or keeping in repair under the situation of converter transformer, remove first seal and second seal.
By the present invention, after installing, acoustic barrier can seal the converter transformer body fully equally, and defening effect is good; After the shutoff between the acoustic barrier on acoustic barrier on the fire compartment wall and the converter transformer body was removed, converter transformer can shift out flexibly, makes things convenient for converter transformer operating maintenance and replacing; Only needing on the converter transformer body needs between top and body and the cooler acoustic barrier is installed, and once mounting is forever available, does not need to remove repeatedly.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram that illustrates according to the cross section of the denoising device that is used for converter transformer of the embodiment of the invention;
Fig. 2 be illustrate first acoustic barrier 104 according to the denoising device that is used for converter transformer of the embodiment of the invention, second acoustic barrier 106, cooler 122, and converter transformer 102 between the side schematic view of annexation, wherein, not shown first fire compartment wall 112, second fire compartment wall 114, first connecting plate 108, and second connecting plate 110;
Fig. 3 is the design sketch that illustrates according to the denoising device that is used for converter transformer of the embodiment of the invention; And
Fig. 4 is the flow chart that illustrates according to the noise-reduction method that is used for converter transformer of the embodiment of the invention.
Embodiment
Below with reference to accompanying drawing, describe the specific embodiment of the present invention in detail.
At the denoising device that is used for converter transformer according to the embodiment of the invention, denoising device is installed on one's body the converter transformer device and converter transformer constitutes an integral body, can isolate the noise that produces when converter transformer moves.This device is installed on the converter transformer body, during replacing and converter transformer move together.When the converter transformer valve in place Room, be installed in the acoustic barrier on the converter transformer body and be installed in gap conveniently shutoff between acoustic barrier on the fire compartment wall, make it to constitute an integral body, effectively noise isolation.This shutoff also can be removed flexibly, removes the back converter transformer and can be with acoustic barrier to move.
Wherein, when converter transformer moved, whole converter transformer decannulation stretched out outer body in the space of acoustic barrier sealing, the noise that produces in the time of can effectively reducing the converter transformer operation.When converter transformer was in place, the acoustic barrier of installing on the fire compartment wall and the change of current became the acoustic barrier of installing on the body and form an integral body by shutoff, constitute acoustic barrier.Directly over the converter transformer and between cooler and the body acoustic barrier is being installed, its acoustic barrier can move with transformer.When need in service are changed converter transformer, only need remove the shutoff between the fixed installation acoustic barrier on converter transformer body acoustic barrier and the fire compartment wall, converter transformer is promptly extensible, after another converter transformer with same acoustic barrier is in place, to can form new complete sound arrester behind the shutoff of the gap again, new converter transformer just can operation under sound insulation.
Fig. 1 is the schematic diagram that illustrates according to the cross section of the denoising device that is used for converter transformer of the embodiment of the invention.Fig. 2 be illustrate first acoustic barrier 104 according to the denoising device that is used for converter transformer of the embodiment of the invention, second acoustic barrier 106, cooler 122, and converter transformer 102 between the side schematic view of annexation, wherein, not shown first fire compartment wall 112, second fire compartment wall 114, first connecting plate 108, and second connecting plate 110.
As depicted in figs. 1 and 2, comprise according to the denoising device that is used for converter transformer of the embodiment of the invention: first acoustic barrier 104, be fixedly connected on the end face of converter transformer 102, have the first edge 104a and the second edge 104b; Second acoustic barrier 106 is fixedly connected between the side and cooler 122 of converter transformer 102, and is fixedly connected on first acoustic barrier 104; The first sound insulation fishplate bar 108 is connected in first fire compartment wall 112 on the side of converter transformer 102, and removably overlaps with the first edge 104a; And second sound insulation fishplate bar 110, be connected in second fire compartment wall 114 on the side of converter transformer 102, and removably overlap with the second edge 104b.
Wherein, the first edge 104a has the first recess 104c, and the first edge 104a removably overlaps by the first recess 104c and the first sound insulation fishplate bar 108; And second edge 104b have the second recess 104d, the second edge 104b removably overlaps by the second recess 104c and second fishplate bar 110 that insulates against sound.
This denoising device also comprises: first seal 118 is used to seal the lap-joint of the first edge 104a and the first sound insulation fishplate bar 108; And second seal 120, be used to seal the lap-joint of the second edge 104b and the second sound insulation fishplate bar 110.Wherein, first seal 118 and second seal 120 are dismountable.
Wherein, first acoustic barrier 104 is fixedlyed connected with the end face of converter transformer 102 by one or more first fixtures 116.Second acoustic barrier is fixedlyed connected with the side of converter transformer 102 by one or more second fixtures 124.
Wherein, first acoustic barrier 104 and/or second acoustic barrier 106 are made of sound insulating material.First acoustic barrier 104 and/or second acoustic barrier 106 by a plurality of part detachables be spliced.
According to the denoising device that is used for converter transformer of the embodiment of the invention design sketch before advancing valve hall as shown in Figure 3.
Fig. 4 is the flow chart that illustrates according to the noise-reduction method that is used for converter transformer of the embodiment of the invention.
As shown in Figure 4, the noise-reduction method that is used for converter transformer according to the embodiment of the invention may further comprise the steps:
Step S402 is fixedly connected on the end face of converter transformer 102 with first acoustic barrier 104, and wherein, first acoustic barrier 104 has the first edge 104a and the second edge 104b;
Step S404 is fixedly connected on second acoustic barrier 106 between the side and cooler 122 of converter transformer 102;
Step S406 is fixedly connected on first acoustic barrier 104 with second acoustic barrier 106;
Step S408 is connected in first fire compartment wall 112 and second fire compartment wall 114 on the side of converter transformer 102 with the first sound insulation fishplate bar 108 and the second sound insulation fishplate bar 110 respectively; And
Step S410, respectively the first sound insulation fishplate bar 108 and second the is insulated against sound fishplate bar 110 and the first edge 104a and the second edge 104b removably overlap.
This noise-reduction method is further comprising the steps of: with the lap-joint of first seal, the 118 sealing first edge 104a and the first sound insulation fishplate bar 108; And the lap-joint that seals the second edge 104b and the second sound insulation fishplate bar 110 with second seal 120.In addition, changing or keeping in repair under the situation of converter transformer 102, remove first seal 118 and second seal 120.
By the present invention, after installing, acoustic barrier can seal the converter transformer body fully equally, and defening effect is good; After the shutoff between the acoustic barrier on acoustic barrier on the fire compartment wall and the converter transformer body was removed, converter transformer can shift out flexibly, makes things convenient for converter transformer operating maintenance and replacing; Only needing on the converter transformer body needs between top and body and the cooler acoustic barrier is installed, and once mounting is forever available, does not need to remove repeatedly.In addition, prove by experiment, can reduce by 25 to 30 decibels noise by the present invention.
Be the preferred embodiments of the present invention only below, be not limited to the present invention, for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a denoising device that is used for converter transformer is characterized in that, comprising:
First acoustic barrier (104) is fixedly connected on the end face of converter transformer (102), has first edge (104a) and second edge (104b);
Second acoustic barrier (106) is fixedly connected between the side and cooler (122) of described converter transformer (102), and is fixedly connected on described first acoustic barrier (104);
The first sound insulation fishplate bar (108) is connected in first fire compartment wall (112) on the side of described converter transformer (102), and removably overlaps with described first edge (104a); And
The second sound insulation fishplate bar (110) is connected in second fire compartment wall (114) on the side of described converter transformer (102), and removably overlaps with described second edge (104b).
2. denoising device according to claim 1, it is characterized in that, described first edge (104a) has first recess (104c), and described first edge (104a) removably overlaps by described first recess (104c) and the described first sound insulation fishplate bar (108); And described second edge (104b) has second recess (104d), and described second edge (104b) removably overlaps by described second recess (104c) and the described second sound insulation fishplate bar (110).
3. denoising device according to claim 2 is characterized in that, also comprises:
First seal (118) is used to seal the lap-joint of described first edge (104a) and the described first sound insulation fishplate bar (108); And
Second seal (120) is used to seal the lap-joint of described second edge (104b) and the described second sound insulation fishplate bar (110).
4. denoising device according to claim 3 is characterized in that, described first seal (118) and described second seal (120) are dismountable.
5. denoising device according to claim 3 is characterized in that, described first acoustic barrier (104) is fixedlyed connected with the described end face of described converter transformer (102) by one or more first fixtures (116); And described second acoustic barrier is fixedlyed connected with the described side of described converter transformer (102) by one or more second fixtures (124).
6. according to each described denoising device in the claim 1 to 5, it is characterized in that described first acoustic barrier (104) and/or described second acoustic barrier (106) are made of sound insulating material.
7. denoising device according to claim 6 is characterized in that, described first acoustic barrier (104) and/or described second acoustic barrier (106) by a plurality of part detachables be spliced.
8. a noise-reduction method that is used for converter transformer is characterized in that, may further comprise the steps:
Step S402 is fixedly connected on the end face of converter transformer (102) with first acoustic barrier (104), and wherein, described first acoustic barrier (104) has first edge (104a) and second edge (104b);
Step S404 is fixedly connected on second acoustic barrier (106) between the side and cooler (122) of described converter transformer (102);
Step S406 is fixedly connected on described first acoustic barrier (104) with described second acoustic barrier (106);
Step S408, the fishplate bar (110) that respectively the first sound insulation fishplate bar (108) and second insulated against sound are connected in first fire compartment wall (112) and second fire compartment wall (114) on the side of described converter transformer (102); And
Step S410 removably overlaps described first sound insulation fishplate bar (108) and the described second sound insulation fishplate bar (110) with described first edge (104a) and described second edge (104b) respectively.
9. noise-reduction method according to claim 8 is characterized in that, and is further comprising the steps of:
With the lap-joint of first seal (118) described first edge of sealing (104a) with the described first sound insulation fishplate bar (108); And
With the lap-joint of second seal (120) described second edge of sealing (104b) with the described second sound insulation fishplate bar (110).
10. noise-reduction method according to claim 9 is characterized in that, changing or keeping in repair under the situation of described converter transformer (102), removes described first seal (118) and described second seal (120).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100074584A CN101241797B (en) | 2008-03-07 | 2008-03-07 | Noise reduction device and method for current conversion transformer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100074584A CN101241797B (en) | 2008-03-07 | 2008-03-07 | Noise reduction device and method for current conversion transformer |
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| Publication Number | Publication Date |
|---|---|
| CN101241797A true CN101241797A (en) | 2008-08-13 |
| CN101241797B CN101241797B (en) | 2010-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008100074584A Active CN101241797B (en) | 2008-03-07 | 2008-03-07 | Noise reduction device and method for current conversion transformer |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102110519A (en) * | 2010-12-13 | 2011-06-29 | 国家电网公司 | Field assembly method for transformer |
| CN102856065A (en) * | 2011-06-30 | 2013-01-02 | 特变电工沈阳变压器集团有限公司 | Single-phase super-capacity strong-current short-circuit testing transformer |
| CN108022734A (en) * | 2017-12-14 | 2018-05-11 | 国网河南省电力公司洛阳供电公司 | A kind of mobile noise reduction device for being used for main transformer in substation |
-
2008
- 2008-03-07 CN CN2008100074584A patent/CN101241797B/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102110519A (en) * | 2010-12-13 | 2011-06-29 | 国家电网公司 | Field assembly method for transformer |
| CN102110519B (en) * | 2010-12-13 | 2013-01-02 | 国家电网公司 | Field assembly method for transformer |
| CN102856065A (en) * | 2011-06-30 | 2013-01-02 | 特变电工沈阳变压器集团有限公司 | Single-phase super-capacity strong-current short-circuit testing transformer |
| CN102856065B (en) * | 2011-06-30 | 2015-11-18 | 特变电工沈阳变压器集团有限公司 | Single-phase super-capacity heavy current short circuit test transformer |
| CN108022734A (en) * | 2017-12-14 | 2018-05-11 | 国网河南省电力公司洛阳供电公司 | A kind of mobile noise reduction device for being used for main transformer in substation |
| CN108022734B (en) * | 2017-12-14 | 2023-04-25 | 国网河南省电力公司洛阳供电公司 | Movable noise reduction device for main transformer in transformer substation |
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| Publication number | Publication date |
|---|---|
| CN101241797B (en) | 2010-12-22 |
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