CN202628930U - Frequency conversion condensate pump dynamic vibration absorber - Google Patents
Frequency conversion condensate pump dynamic vibration absorber Download PDFInfo
- Publication number
- CN202628930U CN202628930U CN 201220269780 CN201220269780U CN202628930U CN 202628930 U CN202628930 U CN 202628930U CN 201220269780 CN201220269780 CN 201220269780 CN 201220269780 U CN201220269780 U CN 201220269780U CN 202628930 U CN202628930 U CN 202628930U
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- vibration absorber
- condensate pump
- frequency conversion
- vibration
- overhang
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- 239000006096 absorbing agent Substances 0.000 title claims abstract description 23
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 23
- 238000013016 damping Methods 0.000 claims abstract description 17
- 230000002745 absorbent Effects 0.000 claims description 13
- 239000002250 absorbent Substances 0.000 claims description 13
- 238000010521 absorption reaction Methods 0.000 abstract 2
- 230000010355 oscillation Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
- Vibration Prevention Devices (AREA)
Abstract
A frequency conversion condensate pump dynamic vibration absorber is characterized by being provided with vibration absorber bodies. The frequency conversion condensate pump dynamic vibration absorber comprises cantilever beams (1) and energy absorption blocks (2) which are arranged on one sides of the free ends of the cantilever beams (1), the other ends of the cantilever beams (1) are fixedly connected with a connection block (3) connected with a supporting frame (4), and the supporting frame (4) is connected with a motor body or another frames. The vibration absorber bodies are even in number, each group comprises two vibration absorber bodies, each group of vibration absorber bodies are distributed on two sides of the connection block (3) in symmetrical mode and in opposite direction, and the center lines of each group of vibration absorber bodies are placed on the same straight line. Restraint layers and damping layers are laid on the surfaces of the cantilever beams (1). When the frequency conversion condensate pump dynamic vibration absorber works, the connection block (3), the cantilever beams (1) and the energy absorption blocks (2) are matched under a certain amount of vibration frequency to substantially absorb vibration energy, reduce vibration amplitude, and ensure that a unit works in safe vibration mode.
Description
Technical field
The utility model relates to a kind of vibration damping and energy-absorbing device, and particularly a kind of frequency conversion condensate pump dynamic vibration absorber is applied to the vibration damping and energy-absorbing of fired power generating unit frequency conversion condensate pump.
Background technique
At present, 600MW, 1000MW large electric power plant unit vertical condensation water pump extensively adopt RHVC, and its energy-saving effect is quite remarkable.But during the condensate pump converting operation, vibration often appears, and vibration possibility severe overweight, bring hidden danger for the safe operation of unit.Usually the vibration of condensate pump mostly be that reason owing to resonance causes; Be condensate pump motor when frequency control of motor speed commentaries on classics frequently with the natural frequency of whole system near the time; Cause resonance by the rotor dynamic unbalance, and show through being in the relatively poor relatively motor of condensate pump top, rigidity.To this problem, the way of using always in the middle of the practical applications has: contact manufacturing firm changes the natural frequency of system, the quality of change rotatable parts through the change project organization, or the on-the-spot mode that adds support is with modes such as increase structural rigidity; Change shafting dynamic balance to reduce excitation force; Change the Placement of axle and axle, the increase coupling stiffness; When unit load changes, when coagulating pump near resonance region, appropriate change deaerator level definite value in allowed limits; Thereby change its working speed, avoid resonance region, or change condensate pump into manual frequency conversion mode by the automatic frequency-conversion mode; Manually set the deaerator level definite value; Check that simultaneously the condensate pump rotating speed should change, after the working speed of condensate pump breaks away from its resonance zone, can be stabilized in operation in this scope.More than these vibration reducing measures in concrete application process, all can run into usually and implement that difficulty is big, the problem of complicated operation; Simultaneously; Even if some power plant are using after vibration that these vibration reducing measures will coagulate pump eliminates; Because the change of operation and field condition also usually can cause vibrating repeatedly, therefore, searching out practical, simple vibration reducing measure effective, that put things right once and for all is the important topic that frequency conversion condensate pump vibration damping is faced.
The model utility content
In order to address the above problem, the utility model provides a kind of frequency conversion condensate pump dynamic vibration absorber, is used for the vibration damping and energy-absorbing of fired power generating unit frequency conversion condensate pump, can significantly reduce Oscillation Amplitude, reduces resonance probability.
The technological scheme that the utility model adopts is: a kind of frequency conversion condensate pump dynamic vibration absorber; It is characterized in that being provided with bump leveller; Bump leveller comprises overhang and energy absorbent block, and energy absorbent block is arranged on free end one side on the overhang, and the overhang the other end is fixedly connected with contiguous block; Be connected with supporting frame on the contiguous block, supporting frame is connected with motor main body or its framework.
Described frequency conversion condensate pump dynamic vibration absorber is characterized in that said bump leveller is an even number, and two bump levellers are one group, and every group of two bump levellers are symmetrically distributed in the contiguous block both sides, and centerline in the opposite direction is on same straight line.
Described frequency conversion condensate pump dynamic vibration absorber is characterized in that said overhang surface is laid with damping layer.
Described frequency conversion condensate pump dynamic vibration absorber is characterized in that said overhang surface is laid with restraint layer and damping layer.
Described frequency conversion condensate pump dynamic vibration absorber is characterized in that said energy absorbent block is slidingly connected on overhang.
The utility model through being provided with of overhang and energy absorbent block can be under a certain vibration frequency absorbed oscillation energy significantly, reduce Oscillation Amplitude, guarantee that unit works under the vibrational mode of safety.
Description of drawings
Fig. 1 is the utility model embodiment one structural representation;
Label title among the figure: 1 overhang; 2 energy absorbent block; 3 contiguous blocks; 4 supporting frames.
Embodiment
The utility model embodiment one is as shown in Figure 1, and this frequency conversion condensate pump dynamic vibration absorber is provided with four bump levellers; Bump leveller is made up of overhang 1 and energy absorbent block 2; Energy absorbent block 2 is arranged on free end one side on the overhang 1, and overhang 1 the other end is fixedly connected with contiguous block 3, is connected with supporting frame 4 on the contiguous block 3; Supporting frame 4 is connected with motor main body square box; Two of bump levellers are one group, and every group of two bump levellers are symmetrically distributed in contiguous block 3 both sides, and centerline in the opposite direction is on same straight line; Because condensate pump vibration normally arranges that along current directions X and motor these two in Y direction is parallel to that the direction on ground alternately vibrates; Overhang arragement direction shear vibration direction is carried out the bump leveller overhang of vibration damping and is arranged along the Y direction to the vibration of condensate pump current directions X, carry out the bump leveller overhang of vibration damping to the vibration of condensate pump motor layout Y direction and arrange along directions X; During application this device is installed on the square motor case body, is engaged under a certain vibration frequency significantly absorbed oscillation energy by contiguous block 3, overhang 1, energy absorbent block 2 during work, reduce Oscillation Amplitude, guarantee that unit works under the vibrational mode of safety.
The utility model embodiment two is on embodiment one basis, to be laid with the zn-1 damping layer on overhang 1 surface, in order to widen the vibration damping frequency band.
The utility model embodiment three is outside the zn-1 damping layer that lays on overhang 1 surface on embodiment two the basis, the aluminium restraint layer to be set, in order to widen the vibration damping frequency band.
The utility model embodiment four, be on embodiment one the basis with energy absorbent block 2 setting of on overhang 1, sliding, can regulate the resonant frequency of bump leveller through regulating the position of energy absorbent block 2 on overhang 1.
When the utility model is implemented, the bump leveller of varying number can be set, also optional other damping materials of the damping layer among the embodiment two and three according to the needs of vibration environment.
Claims (5)
1. frequency conversion condensate pump dynamic vibration absorber; It is characterized in that being provided with bump leveller; Bump leveller comprises overhang (1) and energy absorbent block (2), and energy absorbent block (2) is arranged on overhang (1) and goes up free end one side, and overhang (1) the other end is fixedly connected with contiguous block (3); Be connected with supporting frame (4) on the contiguous block (3), supporting frame (4) is connected with motor main body or its framework.
2. frequency conversion condensate pump dynamic vibration absorber according to claim 1; It is characterized in that said bump leveller is an even number; Two bump levellers are one group, and every group of two bump levellers are symmetrically distributed in contiguous block (3) both sides, and centerline in the opposite direction is on same straight line.
3. frequency conversion condensate pump dynamic vibration absorber according to claim 1 is characterized in that said overhang (1) surface is laid with damping layer.
4. frequency conversion condensate pump dynamic vibration absorber according to claim 1 is characterized in that said overhang (1) surface is laid with restraint layer and damping layer.
5. frequency conversion condensate pump dynamic vibration absorber according to claim 1 is characterized in that said energy absorbent block (2) is slidingly connected on overhang (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220269780 CN202628930U (en) | 2012-06-09 | 2012-06-09 | Frequency conversion condensate pump dynamic vibration absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220269780 CN202628930U (en) | 2012-06-09 | 2012-06-09 | Frequency conversion condensate pump dynamic vibration absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202628930U true CN202628930U (en) | 2012-12-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220269780 Expired - Fee Related CN202628930U (en) | 2012-06-09 | 2012-06-09 | Frequency conversion condensate pump dynamic vibration absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202628930U (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615496A (en) * | 2013-12-05 | 2014-03-05 | 哈尔滨工程大学 | Cantilever beam type vibration absorber with adjustable frequency |
| CN103644249A (en) * | 2013-12-17 | 2014-03-19 | 哈尔滨工程大学 | Adjustable broadband vibration absorption and isolation tank base |
| CN104500644A (en) * | 2014-12-09 | 2015-04-08 | 中国电子科技集团公司第三十八研究所 | Multifunctional pendulum-type vibration absorbing device |
| CN104565192A (en) * | 2015-01-12 | 2015-04-29 | 华北水利水电大学 | Bran finisher double-turned mass dampers, combined vibration reduction and isolation device and implementation method |
| CN104896714A (en) * | 2015-06-08 | 2015-09-09 | 合肥美的暖通设备有限公司 | Dynamic vibration absorber and air conditioner equipped with same |
| CN105041663A (en) * | 2015-06-25 | 2015-11-11 | 江苏大唐国际吕四港发电有限责任公司 | Vibration attenuation condensate pump and vibration attenuation method thereof |
| CN107023088A (en) * | 2017-03-23 | 2017-08-08 | 同济大学 | A kind of distributed fan blade type tuned mass damper device |
| CN107736103A (en) * | 2017-10-10 | 2018-02-27 | 辽宁科技大学 | A kind of double pick of vibration damping |
| CN108506418A (en) * | 2018-06-25 | 2018-09-07 | 北京无线电测量研究所 | A kind of multiple degrees of freedom beam type broadband bump leveller |
| CN109723675A (en) * | 2017-10-27 | 2019-05-07 | 台达电子工业股份有限公司 | Fan frame structure, fan and motor |
| CN109838489A (en) * | 2019-02-15 | 2019-06-04 | 哈尔滨工程大学 | A kind of adjustable wideband absorbing noise isolation mount |
| CN113955130A (en) * | 2021-11-19 | 2022-01-21 | 中国直升机设计研究所 | Double-frequency adjustable vibration isolation device for helicopter main reducer |
| CN116753259A (en) * | 2023-06-14 | 2023-09-15 | 青岛华丰伟业电力科技工程有限公司 | Resonance type vibration absorption device, energy balance vibration absorption method and shaping method |
-
2012
- 2012-06-09 CN CN 201220269780 patent/CN202628930U/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615496A (en) * | 2013-12-05 | 2014-03-05 | 哈尔滨工程大学 | Cantilever beam type vibration absorber with adjustable frequency |
| CN103615496B (en) * | 2013-12-05 | 2015-08-12 | 哈尔滨工程大学 | A kind of cantilever beam type vibration absorber with adjustable frequency |
| CN103644249A (en) * | 2013-12-17 | 2014-03-19 | 哈尔滨工程大学 | Adjustable broadband vibration absorption and isolation tank base |
| CN104500644A (en) * | 2014-12-09 | 2015-04-08 | 中国电子科技集团公司第三十八研究所 | Multifunctional pendulum-type vibration absorbing device |
| CN104565192A (en) * | 2015-01-12 | 2015-04-29 | 华北水利水电大学 | Bran finisher double-turned mass dampers, combined vibration reduction and isolation device and implementation method |
| CN104896714A (en) * | 2015-06-08 | 2015-09-09 | 合肥美的暖通设备有限公司 | Dynamic vibration absorber and air conditioner equipped with same |
| CN105041663A (en) * | 2015-06-25 | 2015-11-11 | 江苏大唐国际吕四港发电有限责任公司 | Vibration attenuation condensate pump and vibration attenuation method thereof |
| CN107023088B (en) * | 2017-03-23 | 2019-12-03 | 同济大学 | A kind of distribution fan blade type tuned mass damper device |
| CN107023088A (en) * | 2017-03-23 | 2017-08-08 | 同济大学 | A kind of distributed fan blade type tuned mass damper device |
| CN107736103A (en) * | 2017-10-10 | 2018-02-27 | 辽宁科技大学 | A kind of double pick of vibration damping |
| CN107736103B (en) * | 2017-10-10 | 2020-08-21 | 辽宁科技大学 | Vibration-damping double pickaxe |
| CN109723675A (en) * | 2017-10-27 | 2019-05-07 | 台达电子工业股份有限公司 | Fan frame structure, fan and motor |
| CN108506418A (en) * | 2018-06-25 | 2018-09-07 | 北京无线电测量研究所 | A kind of multiple degrees of freedom beam type broadband bump leveller |
| CN109838489A (en) * | 2019-02-15 | 2019-06-04 | 哈尔滨工程大学 | A kind of adjustable wideband absorbing noise isolation mount |
| CN113955130A (en) * | 2021-11-19 | 2022-01-21 | 中国直升机设计研究所 | Double-frequency adjustable vibration isolation device for helicopter main reducer |
| CN113955130B (en) * | 2021-11-19 | 2023-10-27 | 中国直升机设计研究所 | Dual-frenquency adjustable helicopter main reducer vibration isolator |
| CN116753259A (en) * | 2023-06-14 | 2023-09-15 | 青岛华丰伟业电力科技工程有限公司 | Resonance type vibration absorption device, energy balance vibration absorption method and shaping method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ELECTRICAL POWER RESEARCH INSTITUTE OF GUANGDONG P Free format text: FORMER OWNER: LIU SHI Effective date: 20140313 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140313 Address after: Guangzhou City, Guangdong province Yuexiu District 510000 Dongfeng East Road, No. 8 water Kong (Guangdong building) Patentee after: Electrical Power Research Institute of Guangdong Power Grid Corporation Address before: Guangzhou City, Guangdong province Yuexiu District 510000 Dongfeng East Road, No. 8 water Kong (Guangdong building) Patentee before: Liu Shi |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121226 Termination date: 20140609 |