CN206459998U - The experimental system of mechanical vibration cement mortar - Google Patents
The experimental system of mechanical vibration cement mortar Download PDFInfo
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- CN206459998U CN206459998U CN201621479971.XU CN201621479971U CN206459998U CN 206459998 U CN206459998 U CN 206459998U CN 201621479971 U CN201621479971 U CN 201621479971U CN 206459998 U CN206459998 U CN 206459998U
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Abstract
The utility model is a kind of experimental system of mechanical vibration cement mortar, and experimental system includes vibration testing device, mould and vibration measuring set.Vibration testing device includes control cabinet and electromagnetic vibration generator system, and control cabinet connection electromagnetic vibration generator system simultaneously adjusts vibration parameters, electromagnetic vibration generator system horizontal positioned.Mould is fixed on electromagnetic vibration generator system by fixing device, is used to load cement mortar in mould.Vibration measuring set is used for the amplitude for monitoring electromagnetic vibration generator system.It can truly reflect that mechanical vibration waits the action effect during coagulating, influence of the mechanical vibration of research for cement slurry property in cement mortar.9 groups of different parameter combinations are set by orthogonal experimental method, variance analysis and range analysis are carried out to test result, it was found that action rule of the mechanical vibration to cement slurry property, the optimum combination value of vibration frequency, amplitude and time of vibration is determined, so as to provide foundation to the impact effect of cementing quality for mechanical vibration.
Description
Technical field
The utility model is related to the experimental study field of Oil-Gas Well Engineering, more particularly to a kind of mechanical vibration cement mortar
Experimental system.
Background technology
In recent years, with the increase year by year of bad ground and complex structural well quantity, various cementing operation technical barriers and
Quality problems become increasingly complex.In order to improve cementing quality, oil gas water breakthrough after well cementation is prevented, domestic and international research institution uses for reference building
The method of industry shaking concrete, has carried out the research of vibration cementing technology and theoretical method in succession, is increasingly becoming carries now
One of effective technology means of high cementing quality.Vibration cementing technology by action principle can be divided into mechanically, waterpower pulse formula, magnetic
Cause telescopic, piezoelectric ceramic type, audio frequency formula, surface annulus waterpower or air pulse formula.Wherein, mechanical vibration cementing technology behaviour
Make simple, tool equipment is repeatable to be utilized, with low cost.At present, mainly developed both at home and abroad for field conduct machinery
The device and technique of formula vibration cementing, and applied for many patents, but due to not developing effective mechanical vibration cementing
Experimental evaluation method, still belongs to blank in terms of experimental study of the mechanical vibration to cement slurry property affecting laws.Mechanically shake
Dynamic cementing technology can not only produce vibration during cementing, replacement cement mortar, can similarly be played during time is solidifying
Effect, all benefits for all well cementation links.Accordingly, it would be desirable to which a set of experimental system and corresponding experimental method study vibration
To the affecting laws of cement slurry property.
Thus, the present inventor relies on experience and the practice for being engaged in relevant industries for many years, proposes a kind of mechanical vibration cement
The experimental system of slurry, to overcome the defect of prior art.
Utility model content
The purpose of this utility model is to provide a kind of experimental system of mechanical vibration cement mortar, can truly reflected
Go out mechanical vibration and wait the action effect during coagulating, influence of the mechanical vibration of research for cement slurry property in cement mortar.
Another object of the present utility model is to provide a kind of experimental system of mechanical vibration cement mortar, by indoor real
Test the optimum combination of research vibration frequency, amplitude and time of vibration in working environment at coal mines.
The purpose of this utility model is achieved in that a kind of experimental system of mechanical vibration cement mortar, the machinery
The experimental system of formula vibration cement mortar includes：
Vibration testing device, it includes control cabinet and electromagnetic vibration generator system, and the control cabinet connects the electromagnetic vibration generator system simultaneously
Adjust vibration parameters, the electromagnetic vibration generator system horizontal positioned；
Mould, it is fixed on the electromagnetic vibration generator system by fixing device, is used to load cement mortar in the mould；With
And
Vibration measuring set, it is used for the amplitude for monitoring the electromagnetic vibration generator system.
In a better embodiment of the present utility model, the fixing device includes pressing plate and at least two are vertically arranged
Column, the bottom of the column is fixed on the electromagnetic vibration generator system, and the mould is placed on described between the column
On electromagnetic vibration generator system；The pressing plate is slidably located in described vertical provided with through hole corresponding with the column and by the through hole
On post；The column is provided with screw thread and is connected with clamp nut, and the pressing plate is pressed on the mould by the clamp nut
Top.
In a better embodiment of the present utility model, the mould includes bottom plate, at least two molds and top
Plate；The cavity for being used for accommodating cement mortar is provided with the mold, the mold, which is vertically stacked, is placed on the bottom
On plate, the top plate is folded between the two neighboring mold.
In a better embodiment of the present utility model, the mold has side wall and dividing plate, and the side wall is surrounded
The cavity of one closing, the upper and lower ends of the cavity are opened wide, the dividing plate be vertically arranged and by the cavity be separated into mutually every
From the cavity.
In a better embodiment of the present utility model, the center vertical of the mould is equipped with a shadoof, described to carry
The bottom of bar is fixed together with the bottom plate, and the perforation passed through for the shadoof is equipped with the top plate and the dividing plate；
The threaded upper ends connection handle of the shadoof.
In a better embodiment of the present utility model, the top plate one side relative with the mold below
It is provided with the conduction trough of the cavity and ft connection.
In a better embodiment of the present utility model, the vibration measuring set includes magnetic-type probe, the magnetic
Piezoelectric acceleration transducer is provided with formula probe；The magnetic-type probe absorption is on the electromagnetic vibration generator system.
From the above mentioned, experimental system of the present utility model can truly reflect that mechanical vibration is waited in cement mortar and coagulate
Action effect in journey, influence of the mechanical vibration of research for cement slurry property.By the statistical to experimental result data
Analysis, i.e. variance analysis and range analysis finds action rule of the mechanical vibration to cement slurry property, determine vibration frequency,
The optimum combination value of amplitude and time of vibration, so as to provide foundation to the impact effect of cementing quality for mechanical vibration.
Brief description of the drawings
The following drawings is only intended to, in doing the utility model schematic illustration and explanation, not limit model of the present utility model
Enclose.Wherein：
Fig. 1：For the attachment structure schematic diagram of the utility model experimental system.
Fig. 2：For the structural representation of mould in the utility model experimental system.
Fig. 3：For changing trend diagram of the cement strength in the test result that is obtained using the utility model with vibration frequency.
Fig. 4：For changing trend diagram of the cement strength in the test result that is obtained using the utility model with amplitude.
Fig. 5：For changing trend diagram of the cement strength in the test result that is obtained using the utility model with time of vibration.
Embodiment
In order to be more clearly understood to technical characteristic of the present utility model, purpose and effect, now control is illustrated
Embodiment of the present utility model.
Embodiment one
As shown in figure 1, the utility model provides the experimental system 100 of a set of mechanical vibration cement mortar, this is mechanical
Vibrating the experimental system 100 of cement mortar includes vibration testing device, mould 2 and vibration measuring set 3.Vibration testing device is used
Be Frequency Adjustable formula, it includes control cabinet 11 and electromagnetic vibration generator system 12, and the control cabinet 11 connects the electromagnetic vibration generator system 12 simultaneously
Adjust vibration parameters, the horizontal positioned of electromagnetic vibration generator system 12.Electromagnetic vibration generator system 12 is suction type, can be under electromagnetic force driving
Produce vibration vertically or horizontally.Mould 2 is fixed on the electromagnetic vibration generator system 12 by fixing device, the mould 2
It is interior to be used to load cement mortar；With the synchronous vibration of electromagnetic vibration generator system 12.Vibration measuring set 3 is used to monitor the electromagnetic vibration generator system 12
Amplitude, the difference between the amplitude and the amplitude of setting that are monitored by comparing, to judge whether the experimental provision is working properly,
Amplitude can be finely adjusted by control cabinet 11.Vibration measuring set 3 by instrument host and magnetic-type probe 31, (i.e. visit by magnetic absorbing seat
Head) composition.Piezoelectric acceleration transducer is provided with magnetic-type probe 31；It is preferred that, the electromagnetic vibration generator system 12 is using energy quilt
The metal material of magnet adsorption is made, and the magnetic-type probe 31 is directly adsorbed in be measured on the electromagnetic vibration generator system 12,
Measurement is stable, and data are more accurate.If electromagnetic vibration generator system 12 by the material of magnet adsorption by that can not be made, vibration measuring set 3 is matched somebody with somebody
Feeler lever is had, the head of feeler lever sets piezoelectric acceleration transducer, holds feeler lever with hand during measurement and be close to electromagnetic vibration generator system
Measured on 12.Vibration measuring set 3 can measure the acceleration magnitude (0-199.9m/s of mechanical oscillation2Virtual value), speed
It is worth (0-199.9mm/s virtual values) and shift value (0-1999 μm of peak-to-peak value), during monitoring vibration, high band is from acceleration
Degree measurement, Mid Frequency selects tachometric survey, and low-frequency range selects displacement measurement, and the reading shown by vibration measuring set 3, which is substituted into, to shake
Whether dynamic equation can calculate the numerical value of amplitude under current working, be normally carried out, will not be repeated here to judgment experiment.
By guidance panel input respective symbol Code Selection output for driving on the control cabinet 11 of vibration testing device
The sine wave wave mode that dynamic electromagnetic vibration generator system 12 vibrates, the oscillatory type that can be selected includes：1. (vertical+level) half-wave；2. level
(left and right/front and rear) half-wave；3. vertical (up and down) half-wave；4. all-wave.Direction of vibration may be set to：1. (vertical+level) vibration；②
Level (left and right/front and rear) is vibrated；3. vertical (up and down) vibration.Tuning range is 1~600Hz, and amplitude modulation range is 0~5.2mm, is hung down
Straight and horizontal direction amplitude has vernier knob, can meet the simulation demand of actual vibration condition.
Wherein mould 2 is fixed together by the way of stent-type is fixed with electromagnetic vibration generator system 12.Fixing device bag
Pressing plate 41 and at least two root posts 42 are included, column 42 is vertically arranged on electromagnetic vibration generator system 12, the bottom of the column 42 passes through
Nut is fixed in the screwed hole on the electromagnetic vibration generator system 12, and the mould 2 is placed on the electromagnetic vibration between several root posts 42
On the dynamic face of platform 12.The pressing plate 41 is provided with the corresponding through hole of the column 42 and is slidably located in by the through hole described
On column 42.The outside of the column 42 is provided with screw thread, the column 42 above the through hole of pressing plate 41 and is connected with clamp nut
43.According to the position that clamp nut 43 and pressing plate 41 are adjusted above and below the height of mould 2, clamp nut 43 is tightened on pressing plate 41
Through hole, the pressing plate 41 is pressed on the top of the mould 2, mould 2 is pressed on electromagnetic vibration generator system 12.
As shown in Fig. 2 the mould 2 includes bottom plate 21, mold 22 and top plate 23.Bottom plate 21, mold 22 and
Top plate 23 is rectangle.Provided with two symmetrical square cavities 221 in the mold 22, cavity 221 is all unlimited up and down
, the size of cavity 221 meets the experimental standard of correlation.Mold 22 is provided with least two, as needed, and mold 22 can be with
It is stacked, up and down keeps apart both cavitys 221 provided with top plate 23 between two molds 22 along vertical direction；I.e.
Nethermost mold 22 is placed on bottom plate 21, sets top plate 23 in the top cover of mold 22, mold 22 above is placed
On top plate 23, stack upwards successively.It is sealed, the shape in mold 22 between mold 22 and bottom plate 21 and top plate 23
Into sealed cavity 221.Specifically, mold 22 has side wall 222 and dividing plate 223,222 points of side wall is that three parts are constituted.Bow
Depending on seeing, one of side wall 222 is integrally formed as T-shaped with dividing plate 223, and two pieces of side walls 222 are L-shaped in addition.Three pieces of side walls 222 it
Between linked together in interface by connecting bolt 224.The side wall 222 surrounds the rectangular enclosure of a closing, the cavity
Upper and lower ends open wide, the dividing plate 223 be located at rectangular enclosure centre position, the cavity is separated into symmetrical two sides
Shape cavity 221.As that, using two layers of mold 22 up and down, four pieces of cube cement blocks can be produced simultaneously in Fig. 2.For convenience of de-
Mould, releasing agent is scribbled in the inwall of cavity 221.The center of bottom plate 21 is provided with a shadoof 24 stretched out straight up, shadoof 24
Lower end be fixedly connected by nut with bottom plate 21, perforation is designed with the center of dividing plate 223 and top plate 23, shadoof 24 is from perforation
In pass through dividing plate 223 and top plate 23, be connected with handle 25 in the threaded upper ends of shadoof 24.The top plate 23 is described with below
The relative one side of mold 22 is provided with the conduction trough 231 of the cavity 221 and ft connection, for conduct environmental pressure and
Temperature, unnecessary cement mortar can also overflow from there.
Above is a preferred embodiment of the present utility model, in other embodiments, mould 2 can use other differences
Structure, as long as with the closed cavity 221 of cement mortar can be loaded in mould 2, for example, being set in a mould 2 many
Individual cavity 221, multiple cavities 221 are arranged in the horizontal plane, or multiple cavities 221 are arranged in vertical direction.Mould 2 is fixed on electricity
Mode on magnetic vibration platform 12 is also not necessarily limited to the mode in above-described embodiment, for example, directly mould 2 can be bolted
On electromagnetic vibration generator system 12, or on electromagnetic vibration generator system 12 set fixture by way of by mould 2 be clamped in fixture carry out
It is fixed.
The experimental system 100 of the mechanical vibration cement mortar can truly reflect that mechanical vibration waits solidifying in cement mortar
During action effect, influence of the mechanical vibration of research for cement slurry property.
Embodiment two
Explanation uses the reality of the experimental system 100 of the mechanical vibration cement mortar described in embodiment one in the embodiment
Proved recipe method, specifically includes following operating process：
(1) that four leg bases of electromagnetic vibration generator system 12 are fixed on into horizontal positioned on levels operation face is good, by electric and magnetic oscillation
The input line of platform 12 is connected in the delivery outlet of control cabinet 11, and the power supply of control cabinet 11 is 220v/50Hz, by the magnetic of vibration measuring set 3
The absorption of suction probe 31 is connected on electromagnetic vibration generator system 12.
(2) cement, additive and mix water consumption are weighed according to selected formula, water is made into after agitated device is well mixed
Mud, is poured into the cavity 221 of mould 2 to half depth, with tamper puddle about 30 times, then all cement mortars are poured into, then
With tamper puddle 30 times, top plate 23 is covered at the top of mold 22, unnecessary cement mortar is wiped off with ruler.
(3) mould 2 is placed on electromagnetic vibration generator system 12, entered by the relative position for adjusting clamp nut 43 and pressing plate 41
Row positioning, then screws clamp nut 43 and mould 2 is fixed.
(4) start the power switch of control cabinet 11, select output waveform and direction of vibration, carried out according to default experimental program
The setting of vibration parameters (vibration frequency, amplitude, time of vibration).
(5) frequency bins that vibration measuring set 3 is used according to experiment select corresponding monitoring mode, that is, measure acceleration
Value, velocity amplitude or shift value；Start electromagnetic vibration generator system 12 and vibration measuring set 3 starts experiment.
(6) in experimentation, the moment observation LCDs reading of vibration measuring set 3, control vibration equation, which is converted into, to shake
Width numerical value, to monitor the amplitude of electromagnetic vibration generator system 12 relative to the departure degree that amplitude is set in control cabinet 11.If deviateing pre-
If value is larger, then vernier knob on control cabinet 11 should be adjusted, should stop experiment if deviation is excessive, check failure.
(7) after vibration experiment terminates, power supply is closed, provision for disengagement carries out the dependence test of cement slurry property.Cement mortar
The dependence test of energy includes the analysis of cement mortar static gel strength, Behavior of Hardened Cement Paste intensity test etc..What the present embodiment was carried out is water
Mudstone intensity test；Record obtained test data.
Wherein, according to orthogonal experiment method, different values are taken to enter respectively vibration frequency, amplitude, three factors of time of vibration
Row combination, sets 9 groups of experiments, 9 groups of experiments is repeated according to flow above, obtain 9 groups of test datas altogether；Then to obtaining
9 groups of test datas carry out variance analysis and range analysis, find action rule of the mechanical vibration to cement slurry property, it is determined that
Go out the optimum combination value of vibration frequency, amplitude and time of vibration, so as to be carried for mechanical vibration to the impact effect of cementing quality
For foundation.
Illustrate application of this experimental method in specific experiment below by way of the analysis process of specific experiment data.It is assumed that
Vibration frequency, amplitude and time of vibration are respectively that the value difference of factor A, factor B and tri- factors of factor C, A, B, C is as follows,
Vibration frequency (A)：2Hz(A1)、5Hz(A2)、15Hz(A3)；Amplitude (B)：1mm(B1)、3mm(B2)、5mm(B3)；Time of vibration
(C)：5min(C1)、15min(C2)、30min(C3).Form according to original orthogonal arrage forms supplemental characteristic group as shown in table 1
Close.
The orthogonal design table of table 1
The 0th group of data in table represent cement strength when not vibrating.According to orthogonal design table 1, to water after vibration
The property indices of mud are tested, and the Behavior of Hardened Cement Paste compression strength of maintenance is tested by even loading pressure testing machine.
The experimental data of acquisition is explained by method of analysis of variance and extremum difference analysis.Variance analysis may determine that experiment condition pair
Whether observed result has a significant impact, and judges whether the data obtained have statistical significance by numerical computations, is judging
On the basis of data are effective, range analysis is carried out, that is, calculates the difference of maximum and minimum value in average effect, intuitively judges
Go out to influence the principal element of experimental index, the primary and secondary and respective effect tendency of each factor are analyzed, so that it is determined that optimum combination bar
Part.Thus, you can the optimum combination of the vibration parameters needed for being tested, and each vibration factor can clearly be grasped to cement mortar
The action rule of performance impact.
1st, variance analysis：
Variance analysis is known method, be will not be repeated here, according to the calculation formula of variance analysis, by above-mentioned experimental result
Bring the result of calculation for calculating variance analysis into, as shown in table 2.
The variance analysis result of calculation of table 2
Find out from the p value in table 2 under different operating modes, whether vibrate the shadow for having highly significant to Behavior of Hardened Cement Paste compression strength
Ring, the experiment data acquired has statistical significance.
2nd, range analysis：
Range analysis is also known method, including calculate vibration frequency factor average value, calculates vibration frequency extreme difference；Meter
Calculate amplitude factor average value, calculated amplitude extreme difference；Time of vibration factor average value is calculated, time of vibration extreme difference is calculated.By calculating
Each obtained extreme difference understands that the descending order of influence degree of each factor to experimental result is：When vibration frequency, vibration
Between and amplitude.
Single factor test action rule is analyzed, and referring to Fig. 3, becoming for monotonic increase is presented with the increase of frequency for cement strength
Gesture, after frequency is more than 9.85Hz, vibration is played a part of being obviously improved to cement strength.Referring to Fig. 4, cement strength
Conic section relation (a is presented with amplitude<0), there is optimal vibration amplitude.Referring to Fig. 5, cement strength with time of vibration also into
Conic section relation (a>0), after time of vibration is more than 26.91min, intensity has just been lifted.
Therefore can show that optimal vibration parameters are combined as in as above experiment condition obtained experimental data：Vibration frequency f-
12Hz；Amplitude A -2.85mm；Time of vibration t-30min.
The schematical embodiment of the utility model is the foregoing is only, model of the present utility model is not limited to
Enclose.All combinations of illustrated feature are not necessarily the solution that the utility model is limited in embodiment, can be with
Understand that these additional construction features and operations improvement can be used alone or be combined with each other.It will therefore be appreciated that
The utility model is not limited to the combination of any specific feature or element, and any desired combinations of features described here is all
It can be carried out without departing from protection domain of the present utility model, any those skilled in the art, not depart from the utility model
Design and principle on the premise of made equivalent variations and modification, the scope of the utility model protection all should be belonged to.
Claims (7)
1. a kind of experimental system of mechanical vibration cement mortar, it is characterised in that the experiment system of the mechanical vibration cement mortar
System includes：
Vibration testing device, it includes control cabinet and electromagnetic vibration generator system, and the control cabinet connects the electromagnetic vibration generator system and adjusted
Vibration parameters, the electromagnetic vibration generator system horizontal positioned；
Mould, it is fixed on the electromagnetic vibration generator system by fixing device, is used to load cement mortar in the mould；And
Vibration measuring set, it is used for the amplitude for monitoring the electromagnetic vibration generator system.
2. the experimental system of mechanical vibration cement mortar as claimed in claim 1, it is characterised in that the fixing device includes
Pressing plate and at least two columns being vertically arranged, the bottom of the column are fixed on the electromagnetic vibration generator system, and the mould is put
Put on the electromagnetic vibration generator system between the column；The pressing plate is provided with through hole corresponding with the column and passes through institute
Through hole is stated to be slidably located on the column；The column is provided with screw thread and is connected with clamp nut, and the clamp nut will
The pressing plate is pressed on the top of the mould.
3. the experimental system of mechanical vibration cement mortar as claimed in claim 1, it is characterised in that the mould includes bottom
Plate, at least two molds and top plate；The cavity for being used for accommodating cement mortar is provided with the mold, the mold edge is perpendicular
Nogata is placed on the bottom plate to stacking, and the top plate is folded between the two neighboring mold.
4. the experimental system of mechanical vibration cement mortar as claimed in claim 3, it is characterised in that the mold has side
Wall and dividing plate, the side wall surround the cavity of a closing, and the upper and lower ends of the cavity are opened wide, the dividing plate be vertically arranged and incite somebody to action
The cavity is separated into the mutually isolated cavity.
5. the experimental system of mechanical vibration cement mortar as claimed in claim 4, it is characterised in that erect at the center of the mould
Direct puncture is provided with a shadoof, and the bottom of the shadoof is fixed together with the bottom plate, is equipped with the top plate and the dividing plate
The perforation passed through for the shadoof；The threaded upper ends connection handle of the shadoof.
6. the experimental system of vibration cement mortar as claimed in claim 3 mechanical, it is characterised in that the top plate with below
The relative one side of the mold be provided with the conduction trough of the cavity and ft connection.
7. the experimental system of mechanical vibration cement mortar as claimed in claim 1, it is characterised in that the vibration measuring set bag
Include and piezoelectric acceleration transducer is provided with magnetic-type probe, the magnetic-type probe；The magnetic-type probe absorption is described
On electromagnetic vibration generator system.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621479971.XU CN206459998U (en) | 2016-12-30 | 2016-12-30 | The experimental system of mechanical vibration cement mortar |
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| CN201621479971.XU CN206459998U (en) | 2016-12-30 | 2016-12-30 | The experimental system of mechanical vibration cement mortar |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106706754A (en) * | 2016-12-30 | 2017-05-24 | 中国石油天然气集团公司 | Experiment system and experiment method for mechanical vibration on cement slurry |
-
2016
- 2016-12-30 CN CN201621479971.XU patent/CN206459998U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106706754A (en) * | 2016-12-30 | 2017-05-24 | 中国石油天然气集团公司 | Experiment system and experiment method for mechanical vibration on cement slurry |
| CN106706754B (en) * | 2016-12-30 | 2023-05-26 | 中国石油天然气集团公司 | Experiment system and experiment method for mechanical vibration cement paste |
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