CN103016305A - Vibration attenuation method for air compressor mounted on floor - Google Patents
Vibration attenuation method for air compressor mounted on floor Download PDFInfo
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- CN103016305A CN103016305A CN2012104788043A CN201210478804A CN103016305A CN 103016305 A CN103016305 A CN 103016305A CN 2012104788043 A CN2012104788043 A CN 2012104788043A CN 201210478804 A CN201210478804 A CN 201210478804A CN 103016305 A CN103016305 A CN 103016305A
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- air compressor
- flooring
- floor
- vibration
- elastic rod
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 7
- 230000035939 shock Effects 0.000 claims abstract description 7
- 239000010959 steel Substances 0.000 claims abstract description 7
- 239000006096 absorbing agent Substances 0.000 claims abstract description 5
- 238000009408 flooring Methods 0.000 claims description 47
- 238000013016 damping Methods 0.000 claims description 10
- 230000010355 oscillation Effects 0.000 claims description 8
- 230000000694 effects Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention provides a vibration attenuation method for an air compressor mounted on a floor, which includes the following steps: mounting a driving vibration insulating device between the air compressor and the floor, so as to separate the air compressor with the floor, wherein the driving vibration insulating device includes a spring and a damper; additionally arranging floor secondary beams on the back of a floor mounted with the air compressor, and meanwhile enlarging the sectional area of girders on the back of the floor and uprights under the floor; and mounting shock absorbers on the floor secondary beams, wherein each shock absorber includes a steel elastic rod and two mass blocks arranged at the two end parts of each elastic rod respectively, and the mass blocks are mounted on the elastic rods through threads for adjusting positions of the mass blocks. The vibration attenuation method has simple process and strong feasibility, and effectively reduces harmful vibration of the air compressor and plants, thereby meeting requirements of national standard.
Description
Technical field
The present invention relates to a kind of reinforcing and shock absorption method, relate in particular to a kind of air compressor reinforcing and shock absorption method that is applied to be installed on the flooring, belong to the realm of building construction.
Background technique
Air compressor is the main body in the compressed air source unit, and it is the device that the mechanical energy of prime mover is converted to the gas pressure energy, is compressed-air actuated pressure generator.Air compressor is widely used in the enterprises such as machinery, chemical industry, manufacturing, water conservancy at present, and air compressor generally is installed on the basis, ground, sometimes owing to reasons such as position and spaces, air compressor only is installed on the flooring, when flooring does not pass through professional treatment, air compressor can produce larger vibration, even exceeds standard.When multiple air compressors moves, the vibration that produces brings more adverse effect can for normal production, mainly contain following three aspects: 1, vibrate the impact on equipment: because air compressor cylinder vibratory output is excessive, up to 19.7-41.3mm/s, many High Pressure Air Compressors all exist vibration to surpass the problem of technical order, cause the reduction in the working life of air compressor; 2, vibration is on producers' impact: according to " the vibration calculating of building bearing structure and Vibration Absorbing System Design rules under the machine dynamic loading " (YBJ55-90), permission vibration velocity 3.2 mm/s of control panel, if floor vibration speed surpasses above-mentioned standard, might bring negative effect to operator's health; 3, vibration is on the impact of structure: the building vibration standard of recommending according to ISO, when the floor vibration speed of air compressor factory building surpasses 10mm/s, might damage factory building, although these damages are difficult to discover in a short time, but be in for a long time under the environment of high vibration, can bring larger damage influence to building structure.Therefore, how eliminating above-mentioned unfavorable vibration is a puzzlement enterprise difficult problem for many years.
Summary of the invention
The invention provides a kind of oscillation damping method that is applied in the air compressor factory building, solved the deficiency in the above-mentioned background technology, the method technique is simple, and feasibility is strong, can effectively reduce the bad vibration of air compressor factory building, thereby satisfies the requirement of NBS.
Realize that the technological scheme that above-mentioned purpose of the present invention adopts is:
A kind of oscillation damping method that is applied to be installed in the air compressor on the flooring may further comprise the steps: (1), between air compressor and flooring, install initiatively and shake every device, make air compressor and flooring isolated, described active is shaken and is comprised spring and damper every device;
(2), set up the flooring secondary beam at the back side of the flooring that is placed with air compressor, increase simultaneously the sectional area of the column of the girder at the flooring back side and flooring below;
(3), on the flooring secondary beam mounting shock absorber, described vibration damper is comprised of a steel elastic rod and two mass blockes that are arranged at respectively the elastic rod two end part, the screw thread of the position of mass block by can adjusting mass block is installed on the elastic rod.
Described flooring secondary beam is steel I-beam, is installed in the formed grid of girder at flooring back, and its two ends all are fixedly connected with girder and perpendicular to girder, all are installed with orthogonal two flooring secondary beams in each grid.
The inherent circular frequency of vibration damper equals the work circular frequency of air compressor in the step (3), and the elastic rod in the vibration damper is cylindrical bar.
Oscillation damping method provided by the invention has following advantage: at first install between air compressor and flooring initiatively and shake every device, can effectively reduce to be passed to vibration force on the flooring by vibration source, with the amplitude of the forced vibration that reduces factory building.Set up the flooring secondary beam and increase floor main beam and the sectional area of column, can improve the rigidity of mill-type construction, reduce the forced vibration amplitude, thereby change the distortion under the dynamic load function.By under flooring dynamic shock absorber being installed, vibration damper can be changed vibrational energy at last, thereby slows down the simple harmonic oscillation that forces that factory building is subject to.
Description of drawings
Fig. 1 is the scheme of installation of flooring secondary beam provided by the invention;
Fig. 2 is the structural representation of vibration damper;
Among the figure: 1-flooring, 2-girder, 3-column, 4-flooring secondary beam, 5-elastic rod, 6-mass block.
Embodiment
Below in conjunction with drawings and the specific embodiments the present invention is done detailed specific description.
Embodiment 1
Certain province city XX pumped storage power station, annual electricity generating capacity 9.67 hundred million KWh are equipped with eight High Pressure Air Compressors in the air compressor factory building in this power station, and eight High Pressure Air Compressors are arranged on the surface of high building.After the High Pressure Air Compressor Installation and Debugging, all there is the vibration exceeding the standard problem.Carry out vibration-testing through the typical parts to basis and flooring, floor vibration speed is 13.6-18.0mm/s in the factory building, has substantially exceeded the requirement of building vibration standard.
Adopt method provided by the invention that this power station air compressor factory building is carried out vibration damping and reinforce, at first install initiatively between air compressor and flooring 1 and shake every device, make air compressor and flooring 1 isolated, initiatively shaking comprises spring and damper every device.Initiatively shaking can be with a so-called active vibration isolation coefficient η every the effect of the vibration isolation of device
aExpression, namely
Shake every device by installing initiatively, make vibration that preliminary reduction arranged.
Then set up the flooring secondary beam at the back side of the flooring that is placed with air compressor, increase simultaneously the girder 2 at flooring 1 back side and the sectional area of the column 3 below the flooring, as shown in Figure 1.Flooring secondary beam 4 is installed in the girder 2 formed grids at flooring 1 back, its two ends all are fixedly connected with girder 2 and perpendicular to girder 2, all are installed with orthogonal two flooring secondary beams 4 in each grid.Described flooring secondary beam 4 is steel I-beam, on the flooring secondary beam 4 vibration damper is installed, described vibration damper is comprised of a steel elastic rod 5 and two mass blockes 6 that are arranged at respectively the elastic rod two end part, and the screw thread of the position of mass block 6 by can adjusting mass block 6 is installed on the cylindrical elastomer bar 5.For the damping effect that makes vibration damper reaches the highest, the inherent circular frequency of vibration damper equals the work circular frequency of air compressor.
The optional design parameter of using of vibration damper is as shown in following table, and wherein D represents elastic rod diameter, m
2The quality of representation quality piece, l represents resilient lever length
By adopting above series of measures that mill-type construction is carried out consolidation process, thereby realize the purpose of damping, complete rear the air compressor factory building is detected of constructing, the result show High Pressure Air Compressor vibration of foundation amount less than the requirement of producer (10～12mm/s), factory building floor vibratory output is (vertical: 3.2mm/s, level: 6.4mm/s) less than national requirements, thereby guaranteed the safe operation of High Pressure Air Compressor, and improved the working environment of High Pressure Air Compressor factory building.
Claims (3)
1. oscillation damping method that is applied to be installed in the air compressor on the flooring, it is characterized in that may further comprise the steps: (1), between air compressor and flooring, install initiatively and shake every device, make air compressor and flooring isolated, described active is shaken and is comprised spring and damper every device;
(2), set up the flooring secondary beam at the back side of the flooring of placing air compressor, increase simultaneously the sectional area of the column of the girder at the flooring back side and flooring below;
(3), on the flooring secondary beam mounting shock absorber, described vibration damper is comprised of a steel elastic rod and two mass blockes that are arranged at respectively the elastic rod two end part, the screw thread of the position of mass block by can adjusting mass block is installed on the elastic rod.
2. the oscillation damping method that is applied to be installed in the air compressor on the flooring according to claim 1, it is characterized in that: described flooring secondary beam is steel I-beam, be installed in the formed grid of girder at flooring back, its two ends all are fixedly connected with girder and perpendicular to girder, all are installed with orthogonal two flooring secondary beams in each grid.
3. the oscillation damping method that is applied to be installed in the air compressor on the flooring according to claim 1 is characterized in that: the inherent circular frequency of vibration damper equals the work circular frequency of air compressor in the step (3), and the elastic rod in the vibration damper is cylindrical bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210478804.3A CN103016305B (en) | 2012-11-22 | 2012-11-22 | Vibration attenuation method for air compressor mounted on floor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210478804.3A CN103016305B (en) | 2012-11-22 | 2012-11-22 | Vibration attenuation method for air compressor mounted on floor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103016305A true CN103016305A (en) | 2013-04-03 |
| CN103016305B CN103016305B (en) | 2015-01-28 |
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ID=47965288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210478804.3A Active CN103016305B (en) | 2012-11-22 | 2012-11-22 | Vibration attenuation method for air compressor mounted on floor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103016305B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103616070A (en) * | 2013-11-22 | 2014-03-05 | 国家电网公司 | Vibration detection device applied to air compressor room |
| CN104264857A (en) * | 2014-09-30 | 2015-01-07 | 华北水利水电大学 | Tuned mass damper for controlling vertical high-frequency vibration of floor slabs and manufacturing method thereof |
| CN105715512A (en) * | 2016-01-05 | 2016-06-29 | 中国海洋石油总公司 | Fast design analysis method suitable for vibration reducing and isolating system of large reciprocating type compressor unit of ocean platform |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101087950A (en) * | 2004-12-23 | 2007-12-12 | Bsh博世和西门子家用器具有限公司 | Linear compressor |
| US20080289267A1 (en) * | 2007-05-22 | 2008-11-27 | Skidmore Owings & Merrill Llp | Seismic structural device |
| CN201963519U (en) * | 2011-03-09 | 2011-09-07 | 宁波奥克斯电气有限公司 | Vibration damper of compressor |
-
2012
- 2012-11-22 CN CN201210478804.3A patent/CN103016305B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101087950A (en) * | 2004-12-23 | 2007-12-12 | Bsh博世和西门子家用器具有限公司 | Linear compressor |
| US20080289267A1 (en) * | 2007-05-22 | 2008-11-27 | Skidmore Owings & Merrill Llp | Seismic structural device |
| CN201963519U (en) * | 2011-03-09 | 2011-09-07 | 宁波奥克斯电气有限公司 | Vibration damper of compressor |
Non-Patent Citations (2)
| Title |
|---|
| 刘文世等: "设备动力荷载作用下的多层厂房抗振设计", 《水运工程》 * |
| 李相军等: "高构架空压机房减振抗震技术应用", 《建筑结构》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103616070A (en) * | 2013-11-22 | 2014-03-05 | 国家电网公司 | Vibration detection device applied to air compressor room |
| CN103616070B (en) * | 2013-11-22 | 2016-02-10 | 国家电网公司 | A kind of vibration detection device being applied to air compressor house |
| CN104264857A (en) * | 2014-09-30 | 2015-01-07 | 华北水利水电大学 | Tuned mass damper for controlling vertical high-frequency vibration of floor slabs and manufacturing method thereof |
| CN104264857B (en) * | 2014-09-30 | 2016-04-13 | 华北水利水电大学 | Control tuned mass damper of the vertical dither of floor and preparation method thereof |
| CN105715512A (en) * | 2016-01-05 | 2016-06-29 | 中国海洋石油总公司 | Fast design analysis method suitable for vibration reducing and isolating system of large reciprocating type compressor unit of ocean platform |
| CN105715512B (en) * | 2016-01-05 | 2018-06-29 | 中国海洋石油总公司 | Suitable for the quick Design and analysis methods of ocean platform large reciprocating compressor group vibration damping and vibration isolation system |
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| Publication number | Publication date |
|---|---|
| CN103016305B (en) | 2015-01-28 |
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Owner name: STATE GRID XINYUAN CO., LTD. HUBEI BAILIANHE PUMPE Effective date: 20130701 Owner name: STATE ELECTRIC NET CROP. Free format text: FORMER OWNER: HUBEI BAILIANHE PUMPED STORAGE COMPANY LTD. Effective date: 20130701 |
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Effective date of registration: 20130701 Address after: 100031 Xicheng District, Chang'an Avenue, No. 86, Applicant after: State Grid Corporation of China Applicant after: State Grid Xinyuan Co., Ltd. Applicant after: Hubei Bailianhe Pumped Storage Company Ltd. Address before: 430077, No. 1, Cui Liu village, Wuchang, Hubei, Wuhan, East Lake Applicant before: Hubei Bailianhe Pumped Storage Company Ltd. |
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