CN205679388U - A kind of frequency-adjustable channel bend intensity and tired certification test device - Google Patents
A kind of frequency-adjustable channel bend intensity and tired certification test device Download PDFInfo
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- CN205679388U CN205679388U CN201620588231.3U CN201620588231U CN205679388U CN 205679388 U CN205679388 U CN 205679388U CN 201620588231 U CN201620588231 U CN 201620588231U CN 205679388 U CN205679388 U CN 205679388U
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Abstract
The utility model discloses a kind of frequency-adjustable channel bend intensity and tired certification test device, including bend pipe tools, installation bracing frame and balancing weight, described balancing weight is enclosed within the outer wall of bend pipe tools, and balancing weight is arranged on the top installing bracing frame, bend pipe tools is fixed with installation bracing frame away from one end of balancing weight.This experimental rig result of the test is accurate, the limit seismic bearing capacity experimental study carried out with tired certification test device by elbow impact shock, obtain stress intensity under marginal vibration load for the normal bend structure and failure mechanism, significant to comprehensive analysis and research elbow structure low cycle fatigue property and failure mechanism, it is that the test of various sizes of elbow structure ultimate bearing capacity provides mentality of designing.
Description
Technical field
The utility model belongs to a kind of intensity for nuclear power channel bend under shock and vibration load and tired examination
And the experimental rig designing, it is specifically related to a kind of frequency-adjustable channel bend intensity and tired certification test device.
Background technology
Nuclear power pipe-line system can be affected by multiple load at run duration, and wherein to pipe-line system integrality shadow
Ring maximum load and be mainly impact or earthquake.The either shock resistance design of military boats and ships pipe-line system, or nuclear power for civil use
The Aseismic Design of pipe-line system of standing all seems particularly important.At present, owing to existing impact assessment criteria is too strict, naval vessel core moves
The shock resistance of hydraulic piping system requires to propose very harsh requirement to the design of naval vessel nuclear power pipe-line system.
But the understanding of current impact loading, impact theory and structure impact resistance is not enough, naval vessel core is caused to move
The design of hydraulic piping system is extremely difficult even cannot be designed, and have employed substantial amounts of damper, extends the design-build cycle, improves
Expenditure of construction；Equally, it is a large amount of that the process too guarded for sporadic seismic (seismal causes nuclear power station pipeline system to use
Damper, suspension and support and make pipe-line system excessively firm so that manufacture, installation, inservice inspection and the maintenance etc. of nuclear power plant costly,
The irradiation dose that attendant is subject to is big.
In pipe-line system, elbow structure is most important, and elbow is the frequency characteristic of pipe-line system, flexible design and thermal expansion
The release of stress etc. all play a key effect, and the elbow structure in order to study existing nuclear power pipeline carries in limit impact and vibration
Stress intensity under lotus effect and low-Cycle Fatigue Characteristics, need design elbow experimental rig to conduct a research work.And in existing skill
In art, unspecial carry out pipeline strength and fatigue examines experimental provision.
Utility model content
Technical problem to be solved in the utility model be existing to the stress intensity of nuclear power piping elbow with tired
The existence conservative analyzed, the design difficulty of nuclear power piping is big, it is therefore intended that provide a kind of frequency-adjustable channel bend strong
Degree and tired certification test device, frequency can be adjusted by this experimental rig, can to prevention pipe elbow structure impact with
Intensity under oscillating load is tested with tired examination, and result of the test is accurate, to solve nuclear power piping elbow stress intensity
With the conservative of analysis of fatigue, reduce the design difficulty of nuclear power piping.
The utility model is achieved through the following technical solutions:
A kind of frequency-adjustable channel bend intensity and tired certification test device, including bend pipe tools, installation bracing frame
And some pieces of balancing weights, described balancing weight is enclosed within the outer wall of bend pipe tools, and balancing weight is arranged on and installs the upper of bracing frame
Side, bend pipe tools is fixed with installation bracing frame away from one end of balancing weight.This programme appropriate design line size and weight mass,
Guarantee test model stress response is maximum as far as possible, the purpose of the bearing test that reaches capacity research.The support of regulation is easy in design
Structure connection constraints mode, can regulate a certain amount of pipeline processing deviation；Then analytical calculation determines the knot of elbow experimental rig
Structure frequency so that the fundamental frequency of this model is interval at 10Hz ~ 20Hz.To solve nuclear power piping elbow stress intensity and analysis of fatigue
Conservative, reduce nuclear power piping design difficulty.This device has easily processing, easily assembles, pipe interior pressurization and pressurize
The features such as convenience.Can be used for the prevention pipe elbow structure intensity under the load such as pressure and impact act on simultaneously and tired examination.
Bend pipe tools is mainly made up of straight tube, elbow, mounting flange plate and counterweight flanged plate, straight tube include horizontal straight tube and
Vertical straight tube, vertical straight tube is arranged on the top of horizontal straight tube, and elbow is arranged between horizontal straight tube and vertical straight tube, and curved
The termination of head is connected with horizontal straight tube and vertical straight tube respectively, is provided with plug, counterweight flange sleeve-board on the top of vertical straight tube
On the outer wall of vertical straight tube, balancing weight is enclosed within the outer wall of vertical straight tube, and balancing weight is arranged on above counterweight flanged plate simultaneously
Contacting with counterweight flanged plate, mounting flange sleeve-board is on horizontal straight tube, and mounting flange plate is fixed with installing bracing frame；Install and prop up
Support is mainly made up of base plate, side plate and riser, and side plate and riser are all vertically fixed on the end face of base plate, and riser is arranged on side
Between plate and vertical with side plate fix, mounting flange plate be arranged between the region that base plate, side plate and riser are formed and with
Riser is fixed；Being provided with through hole on riser, horizontal straight tube is arranged in through-holes away from one end of elbow.Experimental rig conduit upper
Counterweight use multiple circular balancing weight, be bolted, for different test requirements documents, joining of varying number can be arranged
Pouring weight, simple to operation, any regulation to elbow structure frequency can be accomplished.In order to ensure structure frequency characteristic and stress
The requirement of intensity, through repeatedly calculating, the basic size of each parts of experimental rig is as follows:
1st, base plate size is the steel plate of 470mm × 490mm × 40mm, the steel of riser a size of 400mm × 460mm × 30mm
Plate, base plate coordinates perforate with 12t electric and magnetic oscillation table top bolt, and riser coordinates perforate with the mounting flange plate of elbow testpieces；
2nd, line size is Φ 60 × 4, a length of 200mm of horizontal straight tube, a length of 600mm of straight vertical pipeline section, elbow curvature half
Footpath is 57mm.
The utility model compared with prior art, has such advantages as and beneficial effect: this experimental rig result of the test
Accurately, the limit seismic bearing capacity experimental study carried out with tired certification test device by elbow impact shock, it is thus achieved that
Stress intensity under marginal vibration load for the normal bend structure and failure mechanism, tired to comprehensive analysis and research elbow structure low week
Labor performance and failure mechanism are significant, are that the test of various sizes of elbow structure ultimate bearing capacity provides design think of
Road.
Brief description
Accompanying drawing described herein is used for providing being further appreciated by the utility model embodiment, constitutes the one of the application
Part, is not intended that the restriction to the utility model embodiment.In the accompanying drawings:
Fig. 1 is the utility model structural representation；
Fig. 2 is the structural representation of bend pipe tools；
Fig. 3 is for installing the structural representation of bracing frame.
Mark and corresponding parts title in accompanying drawing:
1-balancing weight, 2-bend pipe tools, 201-plug, 202-counterweight flanged plate, the vertical straight tube of 203-, 204-elbow,
205-horizontal straight tube, 206-mounting flange plate, 3-installs bracing frame, 301-side plate, 302-riser, 303-base plate, 304-through hole.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with embodiment and accompanying drawing,
The utility model is described in further detail, and exemplary embodiment of the present utility model and explanation thereof are only used for explaining this
Utility model, is not intended as to restriction of the present utility model.
Embodiment:
As shown in Figure 1, Figure 2 and Figure 3, a kind of frequency-adjustable channel bend intensity and tired certification test device, including
The 2nd, bend pipe tools installs bracing frame 3 and balancing weight 1, and balancing weight 1 quantity has polylith, it is simple to adjust elbow frequency, and counterweight
Flanged plate 202 is welded on vertical straight tube 203 as supporting balancing weight 1, and vertical straight tube 203 is vertical with horizontal straight tube 205 to be set
Put, be mounted on plug 201, vertical straight tube 203 on the top of vertical straight tube 203 and horizontal straight tube 205 away from one end of elbow
Be arrangeding in parallel with plumb line, horizontal straight tube 205 is arranged with plane-parallel, and side plate 301 and riser 302 are all vertically fixed on base plate
On the end face of 303, riser 302 is arranged between side plate 301 and vertical with side plate 301 fixes, and mounting flange plate 206 is arranged on
Between the region that base plate the 303rd, side plate 301 and riser 302 are formed and fix with riser 302, base plate the 303rd, side plate 301 and riser
302 are welded as overall structure, and for being supported during to test, the through hole 304 that riser 302 is arranged is easy for horizontal straight tube
205 insert.After installing this experimental rig, nuclear power channel bend impact shock with the design of tired certification test device is
Completed by the finite element analysis method mutual with structure design.
(1) parameter such as the flexible factor of elbow in the research purpose according to project and current nuclear power piping, and consider examination
Test the erection weight of stand, space limits and mesa dimensions interface size, determines the preliminary form of elbow certification test device；
(2) then use ANSYS program as analysis tool, through repeatedly calculating, determine the physical dimension of supporting structure；
(3) after device to be tested machines, assembles test, if test frequency is unsatisfactory for requiring, then by plus-minus top
The frequency characteristic of counterweight adjustment structure；
(4) being connected the plug perforate of pipe fitting lower end with pressuring pump, after water fills, the plug of sealed pipe fittings upper end is opened
Hole, suppresses 20MPa, the weldquality of test pipe fitting and the sealing property of plug.
By this experimental rig, finally give test data accurately, by elbow impact shock and tired certification test
The limit seismic bearing capacity experimental study that device is carried out, it is thus achieved that stress under marginal vibration load for the normal bend structure is strong
Degree and failure mechanism, significant to comprehensive analysis and research elbow structure low cycle fatigue property and failure mechanism, for difference
The elbow structure ultimate bearing capacity test of size provides mentality of designing.
Above-described detailed description of the invention, is entered to the purpose of this utility model, technical scheme and beneficial effect
One step describes in detail, be it should be understood that and the foregoing is only detailed description of the invention of the present utility model, is not used to limit
Fixed protection domain of the present utility model, all within spirit of the present utility model and principle, any modification of being made, equivalent replace
Change, improvement etc., should be included within protection domain of the present utility model.
Claims (4)
1. a frequency-adjustable channel bend intensity and tired certification test device, it is characterised in that include bend pipe tools
(2), installing bracing frame (3) and balancing weight (1), described balancing weight (1) is enclosed within the outer wall of bend pipe tools (2), and balancing weight
(1) being arranged on the top of installation bracing frame (3), bend pipe tools (2) is solid with installation bracing frame (3) away from one end of balancing weight (1)
Fixed.
2. a kind of frequency-adjustable channel bend intensity according to claim 1 and tired certification test device, its feature
Being, described bend pipe tools (2) is main by straight tube, elbow (204), mounting flange plate (206) and counterweight flanged plate (202) structure
Becoming, straight tube includes horizontal straight tube (205) and vertical straight tube (203), and vertical straight tube (203) is arranged on the upper of horizontal straight tube (205)
Side, elbow (204) is arranged between horizontal straight tube (205) and vertical straight tube (203), and the termination of elbow (204) respectively with
Horizontal straight tube (205) and vertical straight tube (203) connect, and are provided with plug (201), counterweight method on the top of vertical straight tube (203)
Blue plate (202) is enclosed within the outer wall of vertical straight tube (203), and balancing weight (1) is enclosed within the outer wall of vertical straight tube (203), and counterweight
Block (1) is arranged on counterweight flanged plate (202) top and contacts with counterweight flanged plate (202), and mounting flange plate (206) is enclosed within level
On straight tube (205), and mounting flange plate (206) is fixed with installing bracing frame (3).
3. a kind of frequency-adjustable channel bend intensity according to claim 2 and tired certification test device, its feature
Be, described installation bracing frame (3) mainly be made up of base plate (303), side plate (301) and riser (302), side plate (301) and stand
Plate (302) is all vertically fixed on the end face of base plate (303), and riser (302) is arranged between side plate (301) and and side plate
(301) vertically fix, mounting flange plate (206) be arranged on the region that base plate (303), side plate (301) and riser (302) formed it
Between and with riser (302) fix.
4. a kind of frequency-adjustable channel bend intensity according to claim 3 and tired certification test device, its feature
Being, described riser (302) is provided with through hole (304), and horizontal straight tube (205) is arranged on logical away from one end of elbow (204)
In hole (304).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620588231.3U CN205679388U (en) | 2016-06-17 | 2016-06-17 | A kind of frequency-adjustable channel bend intensity and tired certification test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620588231.3U CN205679388U (en) | 2016-06-17 | 2016-06-17 | A kind of frequency-adjustable channel bend intensity and tired certification test device |
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| CN205679388U true CN205679388U (en) | 2016-11-09 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109269316A (en) * | 2018-09-05 | 2019-01-25 | 索通发展股份有限公司 | Water-cooled condenser and ORC power generator |
| CN110470533A (en) * | 2019-07-18 | 2019-11-19 | 常州大学 | Union elbow failure analysis experimental rig under a kind of soil environment |
| CN112461468A (en) * | 2020-11-18 | 2021-03-09 | 中国核动力研究设计院 | Seismic test equipment pipe connection load simulation device and simulation method |
| CN112924269A (en) * | 2021-01-11 | 2021-06-08 | 国家管网集团西部管道有限责任公司 | Method and test device for simulating third-party damage to large-caliber high-pressure pipeline |
-
2016
- 2016-06-17 CN CN201620588231.3U patent/CN205679388U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109269316A (en) * | 2018-09-05 | 2019-01-25 | 索通发展股份有限公司 | Water-cooled condenser and ORC power generator |
| CN110470533A (en) * | 2019-07-18 | 2019-11-19 | 常州大学 | Union elbow failure analysis experimental rig under a kind of soil environment |
| CN110470533B (en) * | 2019-07-18 | 2022-02-08 | 常州大学 | Analysis test device for destruction of elbow joint under soil environment |
| CN112461468A (en) * | 2020-11-18 | 2021-03-09 | 中国核动力研究设计院 | Seismic test equipment pipe connection load simulation device and simulation method |
| CN112924269A (en) * | 2021-01-11 | 2021-06-08 | 国家管网集团西部管道有限责任公司 | Method and test device for simulating third-party damage to large-caliber high-pressure pipeline |
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