CN103711733A - Shock absorber for nuclear power fan - Google Patents
Shock absorber for nuclear power fan Download PDFInfo
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- CN103711733A CN103711733A CN201310668399.6A CN201310668399A CN103711733A CN 103711733 A CN103711733 A CN 103711733A CN 201310668399 A CN201310668399 A CN 201310668399A CN 103711733 A CN103711733 A CN 103711733A
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- nuclear power
- base
- power fan
- vibration damper
- upper plate
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- Vibration Dampers (AREA)
Abstract
The invention discloses a shock absorber for a nuclear power fan. The shock absorber comprises a base and an upper crown sheet, wherein a plurality of compression springs are arranged between the base and the upper crown sheet, the base is provided with two guide frames, and two guide holes are respectively formed in the top surfaces of the guide frames; the bottom of the upper crown sheet is connected with four guide bolts, and the guide bolts respectively penetrate through the corresponding guide holes; and the center of the upper crown sheet is further connected with a small crown sheet, and the compression springs are arranged between the small crown sheet and the base. The horizontal size of the small crown sheet is matched up with the distance between the top surfaces of the two guide frames. By adopting the shock absorber for the nuclear power fan provided by the invention, the guide frames and the guide bolts are matched to restrain the displacement of the shock absorber in a horizontal direction, thereby guaranteeing that the fan can not shake in the horizontal direction; and meanwhile, the small crown sheet and the top surfaces of the guide frames are matched to keep the horizontal shearing force born by the guide bolts in a safe range, and the safety of the shock absorber can be guaranteed.
Description
Technical field
The present invention relates to a kind of vibration damper, particularly relate to and a kind ofly for the cooling blower vibration damping of nuclear power plant, using, there is the nuclear power fan vibration damper of high shockproof requirements.
Background technique
In nuclear power plant, a large amount of cooling blowers that use are forced cooling to its heating position, in the heap top component of Ru nuclear power plant, its control rod drive mechanisms (CRD) can be sent a large amount of heats when work, need to control rod drive mechanisms (CRD), force by cooling blower cooling, to maintain the needed temperature of the normal work of control rod drive mechanisms (CRD) coil block.Simultaneously, for safety, nuclear power fan need have higher antidetonation rank, as should be able to bearing, fan design is equivalent to the acceleration load of substantially horizontal 9G and the acceleration load of Vertical direction 4G, existing common vibration damper, its structure is generally a base and a upper plate, one or more springs are set between base and upper plate, the vibration damper of this form can only be offset the vertical vibration of part, the substantially horizontal of vibration damper is not retrained, easily cause blower fan rocking in the horizontal direction, cannot meet omnibearing other requirement of high resistance earthquake magnitude of nuclear power plant.
Summary of the invention
For overcoming above-mentioned defect, the present invention aims to provide a kind of when realizing vertical vibration damping, and rocking of substantially horizontal retrained, the nuclear power fan vibration damper not requiring to meet nuclear power plant's high resistance earthquake magnitude.
For achieving the above object, the technical solution used in the present invention is: a kind of nuclear power fan vibration damper, comprise a base and a upper plate, between described base and upper plate, there are some Compress Springs, described in it, on base, have two leading trucks, the end face of described leading truck respectively has two pilot holes; The bottom of described upper plate is connected with four guide blots, and described guide blot is respectively through corresponding pilot hole; The center of described upper plate is also connected with a little top board, and described Compress Spring is placed between little top board and base.
The end of described guide blot is connected with respectively an adjusting nut, and described adjusting nut is positioned at bottom surface one side of the end face of leading truck.
The end of described guide blot is also connected with respectively a locking nut, and the bottom surface of described locking nut and adjusting nut is close to.
Distance between the horizontal dimension of described little top board and two leading truck end faces matches.
On the end face bottom surface of described leading truck and the inwall of pilot hole, there is respectively damping rubber cushion.
The bottom surface of described little top board has vibration isolating rubber pad.
The bottom surface of described base and the end face of upper plate have respectively vibration damping rubber cushion.
Adopted nuclear power fan vibration damper of the present invention, by coordinating of leading truck and guide blot, vibration damper displacement is in the horizontal direction retrained, guaranteed that blower fan cannot rock in the horizontal direction, simultaneously, by coordinating between little top board and leading truck end face, the horizontal shear force that guide blot bears is remained in safety range, guaranteed the Security of vibration damper.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the left TV structure schematic diagram of Fig. 1.
In figure: 1-base, 2-upper plate, 3-Compress Spring, 4-leading truck, 5-pilot hole, 6-guide blot, the little top board of 7-, 8-adjusting nut, 9-end face, 10-locking nut, 11-damping rubber cushion, 12-vibration damping rubber cushion, 13-vibration isolating rubber pad.
Embodiment
As depicted in figs. 1 and 2, the invention discloses a kind of nuclear power fan vibration damper, comprise a base 1 and a upper plate 2, between described base 1 and upper plate 2, there are some Compress Springs 3, this is the basic structure of common conventional blower fan vibration damper, during use, base 1 is placed on to basis upper, upper plate 2 is connected with the mounting base of blower fan.
The innovative point of nuclear power fan vibration damper of the present invention is mainly on described base 1, to have two leading trucks 4, the end face 9 of described leading truck 4 respectively has two pilot holes 5, conventionally base 1 is arranged to rectangle, described leading truck 4 is arranged on the long limit of rectangle two ends of base 1, and the line of centres of four pilot holes 5 surrounds a rectangle equally, the bottom of described upper plate 2 is connected with four guide blots 6, the position of the position of four guide blots 6 and four pilot holes 5 matches, the axis of four guide blots 6 respectively with the dead in line of corresponding pilot hole 5, described guide blot 6 is respectively through corresponding pilot hole 5, meanwhile, the slightly larger in diameter of described pilot hole 5 is in guide blot 6, to facilitate guide blot 6 to relatively move along pilot hole 5 freely, the center of described upper plate 2 is also connected with a little top board 7, described Compress Spring 3 is placed between little top board 7 and base 1, like this, the upper plate 2 that is connected to assembling base passes to little top board 7 pressure, by the some Compress Springs 3 between little top board 7 and base 1, the vertical motion that blower fan is subject to is offset, simultaneously, owing to being connected to four guide blots 6 of upper plate 2 bottoms and being subject to being respectively connected to the horizontal restraint of four pilot holes 5 on the leading truck 4 on base 1, make upper plate 2 cannot do the larger displacement of substantially horizontal, guaranteed that the blower fan connecting thereon can not do rocking of level.
The end of described guide blot 6 is connected with respectively an adjusting nut 8, described adjusting nut 8 is positioned at bottom surface one side of the end face 9 of leading truck 4, four guide blots 6 are being penetrated respectively after corresponding pilot hole 5, adjusting nut 8 is screwed into respectively to four guide blots 6, and adjust the tightness of bolt 6, Compress Spring 3 is tentatively compressed.Adjusting nut 8 regulates the initial elasticity of vibration damper on the one hand, also makes on the other hand base 1, upper plate 2 and Compress Spring 3 be connected as a single entity.
In order to prevent the convolution of adjusting nut 8, the end of described guide blot 6 is also connected with respectively a locking nut 10, and described locking nut 10 is close to the bottom surface of adjusting nut 8.
Excessive in order to prevent that blower fan is subject to the power of level, because guide blot 6 is subject to can damaging after excessive horizontal force, for this reason, another innovative point of nuclear power fan vibration damper of the present invention is that the horizontal dimension of described little top board 7 and the distance between two leading truck 4 end faces 9 match, common little top board 7 is rectangular-shaped, between the end face 9 of two leading trucks 4 for being parallel to each other, between two minor faces of little top board 7 and the end face 9 of two leading trucks 4, there is a minimum gap, like this, make little top board 7 to do lifting freely at vertical direction, and by the end face 9 of two leading trucks 4, withstood while doing in the horizontal direction slightly large displacement, thereby the displacement that has guaranteed the substantially horizontal of little top board 7 obtains certain constraint, even if connection upper plate 2 is thereon subject to certain constraint of substantially horizontal equally, guaranteed the Security of guide blot 6.
In order to increase the damping constant of vibration damper, be also in order to reduce the damage by friction between guide blot 6 and pilot hole 5 simultaneously, on end face 9 bottom surfaces of described leading truck 4 and the inwall of pilot hole 5, there is respectively damping rubber cushion 11.
The bottom surface of described little top board 7 has vibration isolating rubber pad 13.The end face of the bottom surface of described base 1 and upper plate 2 has respectively vibration damping rubber cushion 12.By vibration isolating rubber pad 13 and vibration damping rubber cushion 12, make blower fan obtain further vibration damping, the noise while reducing its operation.
Claims (7)
1. a nuclear power fan vibration damper, comprise a base (1) and a upper plate (2), between described base (1) and upper plate (2), there are some Compress Springs (3), it is characterized in that having two leading trucks (4) on described base (1), the end face (9) of described leading truck (4) respectively has two pilot holes (5); The bottom of described upper plate (2) is connected with four guide blots (6), and described guide blot (6) is respectively through corresponding pilot hole (5); The center of described upper plate (2) is also connected with a little top board (7), and described Compress Spring (3) is placed between little top board (7) and base (1).
2. nuclear power fan vibration damper according to claim 1, is characterized in that the end of described guide blot (6) is connected with respectively an adjusting nut (8), and described adjusting nut (8) is positioned at bottom surface one side of the end face (9) of leading truck (4).
3. nuclear power fan vibration damper according to claim 2, is characterized in that the end of described guide blot (6) is also connected with respectively a locking nut (10), and described locking nut (10) is close to the bottom surface of adjusting nut (8).
4. nuclear power fan vibration damper according to claim 1, is characterized in that the horizontal dimension of described little top board (7) and the distance between two leading trucks (4) end faces (9) match.
5. nuclear power fan vibration damper according to claim 1, is characterized in that having respectively damping rubber cushion (11) on end face (9) bottom surface of described leading truck (4) and the inwall of pilot hole (5).
6. nuclear power fan vibration damper according to claim 1, is characterized in that the bottom surface of described little top board (7) has vibration isolating rubber pad (13).
7. nuclear power fan vibration damper according to claim 1, is characterized in that the bottom surface of described base (1) and the end face of upper plate (2) have respectively vibration damping rubber cushion (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310668399.6A CN103711733B (en) | 2013-12-11 | 2013-12-11 | A kind of shock absorber for nuclear power fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310668399.6A CN103711733B (en) | 2013-12-11 | 2013-12-11 | A kind of shock absorber for nuclear power fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103711733A true CN103711733A (en) | 2014-04-09 |
| CN103711733B CN103711733B (en) | 2016-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310668399.6A Active CN103711733B (en) | 2013-12-11 | 2013-12-11 | A kind of shock absorber for nuclear power fan |
Country Status (1)
| Country | Link |
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| CN (1) | CN103711733B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10185411A (en) * | 1996-12-27 | 1998-07-14 | Daewoo Electron Co Ltd | Compressor fixing structure of refrigerator |
| US6004113A (en) * | 1998-06-05 | 1999-12-21 | Barnes Group, Inc. | Suspension for hermetic compressors for refrigeration |
| CN201149064Y (en) * | 2007-11-06 | 2008-11-12 | 金川集团有限公司 | Shock-absorbing device for mounting blower fan |
| CN202768499U (en) * | 2012-09-12 | 2013-03-06 | 厦门嘉达环保建造工程有限公司 | Vibration isolation structure of cooling tower draught fan |
| CN202851472U (en) * | 2012-08-28 | 2013-04-03 | 成都科兴密封技术有限公司 | Adjustable damping spring shock absorber |
| CN203627334U (en) * | 2013-12-11 | 2014-06-04 | 上虞专用风机有限公司 | Vibration damper for nuclear power blower |
-
2013
- 2013-12-11 CN CN201310668399.6A patent/CN103711733B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10185411A (en) * | 1996-12-27 | 1998-07-14 | Daewoo Electron Co Ltd | Compressor fixing structure of refrigerator |
| US6004113A (en) * | 1998-06-05 | 1999-12-21 | Barnes Group, Inc. | Suspension for hermetic compressors for refrigeration |
| CN201149064Y (en) * | 2007-11-06 | 2008-11-12 | 金川集团有限公司 | Shock-absorbing device for mounting blower fan |
| CN202851472U (en) * | 2012-08-28 | 2013-04-03 | 成都科兴密封技术有限公司 | Adjustable damping spring shock absorber |
| CN202768499U (en) * | 2012-09-12 | 2013-03-06 | 厦门嘉达环保建造工程有限公司 | Vibration isolation structure of cooling tower draught fan |
| CN203627334U (en) * | 2013-12-11 | 2014-06-04 | 上虞专用风机有限公司 | Vibration damper for nuclear power blower |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103711733B (en) | 2016-03-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 312300 Shangyu City, Shaoxing province people's Road West, No. 1818, No. Applicant after: ZHEJIANG SHANGFENG GAOKE SPECIAL FAN INDUSTRY CO., LTD. Applicant after: ZHUJI LIXIN SHOCK ABSORBER CO., LTD. Address before: 312300 Shangyu City, Shaoxing province people's Road West, No. 1818, No. Applicant before: Shangyu Special Fans Co., Ltd. Applicant before: ZHUJI LIXIN SHOCK ABSORBER CO., LTD. |
|
| COR | Change of bibliographic data | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 312300 No. 1818, Renmin West Road, Dongguan Street, Shangyu District, Shaoxing City, Zhejiang Province Co-patentee after: ZHUJI LIXIN SHOCK ABSORBER Co.,Ltd. Patentee after: Zhejiang Shangfeng high tech special wind industry Co., Ltd Address before: 312300 No. 1818 Renmin West Road, Shaoxing, Zhejiang, Shangyu Co-patentee before: ZHUJI LIXIN SHOCK ABSORBER Co.,Ltd. Patentee before: ZHEJIANG SHANGFENG HI-TECH SPECIALIZED WIND INDUSTRIAL Co.,Ltd. |
|
| CP03 | Change of name, title or address |