CN110361248A - Rock core soluble salt cleaning device and cleaning method - Google Patents
Rock core soluble salt cleaning device and cleaning method Download PDFInfo
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- CN110361248A CN110361248A CN201810252176.4A CN201810252176A CN110361248A CN 110361248 A CN110361248 A CN 110361248A CN 201810252176 A CN201810252176 A CN 201810252176A CN 110361248 A CN110361248 A CN 110361248A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/34—Purifying; Cleaning
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Abstract
The present invention provides a kind of rock core soluble salt cleaning device and cleaning method, the cleaning device includes: constant temperature bath, it includes the accommodating cavity for containing cleaning solution, the inside of accommodating cavity is equipped with the partition for accommodating cavity to be divided into upper cavity and lower chamber, partition is equipped with the channel of connection upper cavity and lower chamber, rock sample to be cleaned is placed in upper cavity, it is equipped with the mixing component for stirring and washing liquid in lower chamber, is additionally provided in accommodating cavity for the cleaning solution in lower chamber to be guided to the guiding subassembly into upper cavity；Conductivity detection components are used to detect the conductivity of cleaning solution；Controller is used to control the opening and closing of inlet valve and liquid outlet valve according to the conductivity of cleaning solution.The present invention can automatically control the cleaning process of rock core soluble salt, realize the bulk flow of cleaning solution around rock core, improve cleaning efficiency and soluble salt removal rate.
Description
Technical field
The present invention relates to the core analysis technical fields more particularly to one in a kind of oil and gas exploration and development process
Kind rock core soluble salt cleaning device and cleaning method.
Background technique
Core analysis is to recognize the necessary means of oil-gas Layer geologic feature, is studied in rock core hole in core analysis
The influence of fluid containing different ions or the fluid of different mineralising to rock core physical property is needed to can in rock core hole
Dissolved salt is cleaned, and it is the premise and basis for guaranteeing experimental accuracy that soluble salt, which is cleaned up,.
Method for the cleaning of rock core soluble salt is to be cleaned using organic solvent and distilled water, but organic solvent can be right
Rock core damages, and is easy to change rock core pore structure, produce a very large impact to the physical property of rock.It is asked in order to avoid such
Topic, common distilled water cleans soluble salt in rock core hole at present, and existing cleaning device is mainly water-bath, water-bath
It is interior to be equipped with partition with holes, bath inner space is divided into two parts up and down, the rock core to the desalinization of soil by flooding or leaching, partition are put in partition top
Lower part is the agitating paddle of stirring system, and the mobility for accelerating water around rock core is stirred to water body, is made using the diffusion of ion
With soluble salt to be taken out of to the hole of rock core.To guarantee degree of cleaning, need artificially to detect the conductance of aqueous solution at regular intervals
Rate, and distilled water is replaced in time, the soluble salt in rock core hole could be cleaned up.
However existing cleaning device by artificially detection conductivity and replaces distilled water, therefore the degree of automation is lower,
And certain barrier effect is played in the meeting of partition to water flow caused by stirring system in water-bath, reduces rock core ambient water
Rate is low so as to cause cleaning efficiency.
Summary of the invention
In order to solve the problems, such as that at least one mentioned in background technique, the present invention provide a kind of rock core soluble salt cleaning device
And cleaning method, the cleaning process of rock core soluble salt can be automatically controlled, realizes the bulk flow of cleaning solution around rock core, is improved
Cleaning efficiency and soluble salt removal rate.
To achieve the goals above, the one side present invention provides a kind of rock core soluble salt cleaning device, comprising:
Constant temperature bath, constant temperature bath include the accommodating cavity for containing cleaning solution, and the inside of accommodating cavity is equipped with for that will hold
The partition that chamber is divided into upper cavity and lower chamber is set, partition is equipped with the channel of connection upper cavity and lower chamber, places in upper cavity
There is a rock sample to be cleaned, the mixing component for stirring and washing liquid is equipped in lower chamber, is additionally provided in accommodating cavity for by cavity of resorption
Cleaning solution in body guides the guiding subassembly into upper cavity.
The test side of conductivity detection components, conductivity detection components is located in accommodating cavity, and contacts with cleaning solution, is used for
Detect the conductivity of cleaning solution.
Controller, controller and conductivity detection components, the inlet valve of accommodating cavity, the liquid outlet valve of accommodating cavity are electric
Property connection, controller be used for according to the conductivity of cleaning solution control inlet valve and liquid outlet valve opening and closing.
In above-mentioned rock core soluble salt cleaning device, optionally, mixing component includes that stirring for lower chamber bottom is arranged in
It mixes axis and is arranged on agitating shaft and around the stirrer paddle of agitating shaft rotation.
Stirrer paddle includes multiple radial-flow type blades and multiple axial-flow type blades.
Axial-flow type blade is used to apply active force along the vertical direction to cleaning solution, so that lower chamber cleaning solution passes through channel
It is moved in upper cavity.
Radial-flow type blade is used to apply active force in the horizontal direction to cleaning solution, so as to be located near radial-flow type blade
Cleaning solution is moved at the inner wall of lower chamber.
In above-mentioned rock core soluble salt cleaning device, optionally, radial-flow type blade and axial-flow type blade are spaced apart from each other and set
It sets on agitating shaft, and radial-flow type blade and axial-flow type blade are located in the same horizontal plane.
In above-mentioned rock core soluble salt cleaning device, optionally, axial-flow type blade be arranged in radial-flow type blade along perpendicular
Histogram to top.
In above-mentioned rock core soluble salt cleaning device, optionally, guiding subassembly includes multiple deflectors, multiple deflectors
It is arranged at intervals on the inner wall of lower chamber, and the plate face of deflector intersects with the inner wall of lower chamber.
In above-mentioned rock core soluble salt cleaning device, optionally, the first end of deflector and the bottom of lower chamber are connected,
The direction of the second end of deflector towards upper cavity extends.
In above-mentioned rock core soluble salt cleaning device, optionally, the second end of all deflectors is towards same direction
The inclined direction of inclination, deflector is identical as flow direction of the cleaning solution after the drive of radial-flow type blade.
In above-mentioned rock core soluble salt cleaning device, optionally, guiding subassembly further includes that multiple intervals are provided with accommodating
Diversion trench on the inner wall of chamber, multiple diversion trenches and multiple deflectors are arranged in a one-to-one correspondence.
The first end of diversion trench is docked with the second end of deflector, the direction of the second end of diversion trench towards upper cavity
Extend, diversion trench is for guiding the cleaning solution for flowing through deflector into upper cavity.
In above-mentioned rock core soluble salt cleaning device, optionally, the first end of diversion trench is located in lower chamber, diversion trench
Second end be located in upper cavity, on partition be spaced apart be equipped with multiple avoid holes, the middle section of multiple diversion trenches is worn correspondingly
It is located in multiple avoid holes.
On the other hand, the present invention also provides a kind of rock core soluble salt cleaning methods, comprising:
Obtain the conductivity of not used cleaning solution, the accommodating cavity cleaning liquid inside of constant temperature bath the first moment conductance
Rate, the conductivity at the second moment and default conductivity threshold, the first moment and the second time at intervals preset duration.
The conductivity of the cleaning solution in preset duration is determined according to the conductivity of the conductivity at the first moment and the second moment
Difference.
Determine that not used cleaning solution conductivity becomes according to the conductivity of not used cleaning solution and default conductivity threshold
Change value.
According to conductivity difference and default conductivity threshold and the conductivity at the second moment and not used cleaning solution electricity
Conductance changing value determines the opening and closing of the inlet valve and liquid outlet valve of constant temperature bath.
Rock core soluble salt cleaning device and cleaning method provided by the invention, which includes constant temperature
Bath, conductivity detection components and controller, its accommodating cavity is divided into upper cavity and lower chamber by setting inside constant temperature bath
Partition, cleaning solution conductivity that controller is detected according to conductivity detection components control inlet valve and liquid outlet valve are opened
It closes, realizes the automatic control of rock core soluble salt cleaning process, and improve the precision of control.By being set inside accommodating cavity
Mixing component is set, lower chamber cleaning solution is driven into upper cavity using the axial-flow type blade of mixing component, utilizes radial-flow type paddle
Cleaning solution is driven to the inner wall of accommodating cavity, and driven via guiding subassembly into upper cavity by leaf, and by by diversion group
Part is set as the deflector and diversion trench being mutually butted, and reduces partition to the barrier effect of cleaning solution, farthest by cavity of resorption
The cleaning solution of body is guided into upper cavity, realizes the bulk flow of cleaning solution around rock sample, improves cleaning efficiency and soluble salt
Removal rate.
Construction and its other goals of the invention and beneficial effect of the invention will be in conjunction with the accompanying drawings to preferred reality
Apply the description of example and more obvious and easy to understand.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to make simply to introduce, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the structural schematic diagram for the rock core soluble salt cleaning device that the embodiment of the present invention one provides；
Structural representation in the rock core soluble salt cleaning device that Fig. 2 provides for the embodiment of the present invention one inside constant temperature bath
Figure；
Fig. 3 is the structural schematic diagram of the partition for the rock core soluble salt cleaning device that the embodiment of the present invention one provides；
Fig. 4 is the flow diagram of rock core soluble salt cleaning method provided by Embodiment 2 of the present invention.
Description of symbols:
100- rock core soluble salt cleaning device；
10- constant temperature bath；
11- accommodating cavity；
12- partition；
The channel 121-；
122- avoid holes；
13- deflector；
14- diversion trench；
15- inlet valve；
16- liquid outlet valve；
17- upper cavity；
18- lower chamber；
20- conductivity detection components；
30- mixing component；
40- controller.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the preferred embodiment of the present invention
In attached drawing, technical solution in the embodiment of the present invention is further described in more detail.In the accompanying drawings, identical from beginning to end or
Similar label indicates same or similar component or component with the same or similar functions.Described embodiment is this hair
Bright a part of the embodiment, instead of all the embodiments.The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to
It is used to explain the present invention, and is not considered as limiting the invention.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
The embodiment of the present invention is described in detail with reference to the accompanying drawing.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should broadly understood, for example, can make to be fixedly connected, be also possible to indirectly connected through an intermediary, can be with
It is the interaction relationship of the connection or two elements inside two elements.For the ordinary skill in the art,
The specific meanings of the above terms in the present invention can be understood according to specific conditions.
Embodiment one
Fig. 1 is the structural schematic diagram for the rock core soluble salt cleaning device that the embodiment of the present invention one provides.Fig. 2 is that the present invention is real
Structural schematic diagram in the rock core soluble salt cleaning device of the offer of example one inside constant temperature bath is provided.Fig. 3 is the embodiment of the present invention one
The structural schematic diagram of the partition of the rock core soluble salt cleaning device of offer.
Referring to shown in attached drawing 1 to attached drawing 3, the embodiment of the present invention one provides a kind of rock core soluble salt cleaning device 100, packet
It includes:
Constant temperature bath 10, constant temperature bath 10 include the accommodating cavity 11 for containing cleaning solution, and the inside of accommodating cavity 11 is equipped with
For dividing accommodating cavity 11 to the partition 12 for upper cavity 17 and lower chamber 18, partition 12 is equipped with connection upper cavity 17 and lower chamber
18 channel 121 is placed with rock sample to be cleaned in upper cavity 17, the stirring group for stirring and washing liquid is equipped in lower chamber 18
Part 30 is additionally provided with for the cleaning solution in lower chamber 18 to be guided to the guiding subassembly into upper cavity 17 in accommodating cavity 11.
The test side of conductivity detection components 20, conductivity detection components 20 is located in accommodating cavity 11, and connects with cleaning solution
Touching, for detecting the conductivity of cleaning solution.
Controller 40, controller 40 and conductivity detection components 20, the inlet valve 15 of accommodating cavity 11, accommodating cavity 11
Liquid outlet valve 16 is electrically connected, and controller 40 is used to control inlet valve 15 and liquid outlet valve according to the conductivity of cleaning solution
The opening and closing of door 16.
It should be noted that constant temperature bath 10 used in the present embodiment can be can commonly be heated in industrial equipment and
The accommodating cavity 11 of the constant temperature bath 10 that can be kept the temperature, the constant temperature bath 10 can be cylindrical body, also or cube.
12 main function of partition being arranged inside accommodating cavity 11 is to place rock sample to be cleaned, guarantees rock sample and cleaning solution
It comes into full contact with.Partition 12 can be dismountable mode and be arranged in accommodating cavity 11, such as be arranged on the inside of accommodating cavity 11
Card slot, by the side edge of partition 12 and the card of card slot set relationship complete fix, can also by by the side edge of partition 12 with
The inner wall bonding of accommodating cavity 11 completes the fixation of the two.The partition 12 can also be to be arranged in by non-removable mode and accommodate
In chamber 11, such as partition 12 and accommodating cavity 11 can be unified to select one of glass, ceramics or stainless steel material, pass through one
Molding method forms the two.It can according to need the selective setting side using above two partition 12 in actual use
Formula, the present embodiment is to this and is not limited, and is also not limited to above-mentioned example.
Referring to shown in attached drawing 3, the channel that supreme cavity 17 is flowed for cleaning solution in lower chamber 18 is provided on partition 12
121, which can be set to multiple, and multiple channels 121 are uniformly distributed on partition 12, and channel 121 can be circle
, be also possible to it is rectangular, also or other shapes.
Cleaning solution used in the present embodiment can be distilled water, and the property based on distilled water is relatively stable and mild, no
The structure that rock core hole can be changed is smaller to the injury of rock sample.Rock core hole is carried out using the ion diffusion of soluble salt
Cleaning needs to replace distilled water in time to guarantee concentration gradient required for spreading.The present embodiment is by opening or closing feed liquor
Mouth valve 15 and liquid outlet valve 16 control the replacement of distilled water.By controller 40 respectively with inlet valve 15 and liquid outlet valve
Door 16 is electrically connected, and using the opening and closing of both the control of controller 40, realizes the automation of operating process.
In above-mentioned 40 control process of controller, the foundation of inlet valve 15 and liquid outlet valve 16 is opened or closed
It is the conductivity for 11 cleaning liquid inside of accommodating cavity that conductivity detection components 20 detect.The conductivity detection components 20 can be mesh
The preceding common model in market can according to need in actual use and select its model and measurement range.
For the mobility for accelerating 11 cleaning liquid inside of accommodating cavity, mixing component 30 can be set in lower chamber 18.And conduct
A kind of preferred embodiment, mixing component 30 include that the agitating shaft of 18 bottom of lower chamber is arranged in and is arranged on agitating shaft simultaneously
Around the stirrer paddle of agitating shaft rotation.
Stirrer paddle includes multiple radial-flow type blades and multiple axial-flow type blades.
Axial-flow type blade is for driving cleaning solution to move along the vertical direction, so that 18 cleaning solution of lower chamber passes through channel 121
It is moved in upper cavity 17.
Radial-flow type blade keeps the cleaning solution being located near radial-flow type blade mobile for driving cleaning solution to rotate around agitating shaft
To the inner wall of lower chamber 18.
It should be noted that the agitating shaft of mixing component 30 provided by the present embodiment is arranged in 18 bottom of lower chamber
, agitating shaft is connect after wearing the bottom of constant temperature bath 10 with the driving device of 10 bottom of constant temperature bath.Two are arranged on agitating shaft
The stirrer paddle of seed type, i.e. axial-flow type blade and radial-flow type blade.Wherein the blade face of axial-flow type blade is intersected with agitating shaft, paddle
Leaf is in distorted shape along blade central axes by end to root, and blade is broadened gradually by root to end.Such set-up mode
Cleaning solution can be driven along the vertical direction, to make the wash liquid stream in lower chamber 18 through channel 121 into upper cavity 17.
The blade face of another radial-flow type blade is parallel with agitating shaft, and blade is gradually become by root to end along blade central axes
It is wide.Such set-up mode can drive cleaning solution in the horizontal direction, to make clear near stirrer paddle in lower chamber 18
Washing lotion drives to its inner wall.The mobility of 11 cleaning liquid inside of accommodating cavity can be improved by two kinds of stirrer paddle.And
And cleaning solution be driven to the inner wall position of lower chamber 18 after can be contacted with guiding subassembly, thus guide its enter upper cavity 17
In contacted with rock sample.
It is arranged on agitating shaft as an alternative embodiment, radial-flow type blade and axial-flow type blade are spaced apart from each other,
And radial-flow type blade and axial-flow type blade are located in the same horizontal plane.
It should be noted that radial-flow type blade and axial-flow type blade can be set in same level, two kinds of blades exist
Setting is spaced in the outside wall surface of agitating shaft.The set-up mode of same level can draw a part of cleaning solution along the vertical direction
It leads, another part guides in the horizontal direction.
Above-mentioned interval setting can be a radial-flow type blade-mono- axial-flow type blade-mono- radial-flow type blade
Endless form setting, is also possible to multiple radial-flow type blades-multiple axial-flow type blade-multiple radial-flow types blade endless form
Setting, " multiple " herein can be one, two or three etc., and the present embodiment does not limit specific set-up mode
It is fixed, it is also not limited to above-mentioned example.
As another optional embodiment, along the vertical direction upper of radial-flow type blade is arranged in axial-flow type blade
Side.
It should be noted that the top of radial-flow type blade is arranged in axial-flow type blade, it can be by the cleaning solution of lower chamber 18
It is divided into upper layer and lower layer, the cleaning solution on upper layer is flowed along the vertical direction by the drive of axial-flow type blade, and the cleaning solution of lower layer is by runoff
Formula blade drive flows in the horizontal direction, such set-up mode can to avoid two kinds of flow directions cleaning solution in flow process
In interfere with each other.
Further, guiding subassembly includes multiple deflectors 13, and multiple deflectors 13 are arranged at intervals on the interior of lower chamber 18
On wall, and the plate face of deflector 13 intersects with the inner wall of lower chamber 18.
It should be noted that deflector 13 can be plane tabular structure, the plate face of deflector 13 referring to shown in attached drawing 2
Intersect with the inner wall of lower chamber 18, i.e. a side of 13 plate face of deflector is connect with the inner wall of lower chamber 18, another relative side
Extend to the centre of lower chamber 18, and an end of the deflector 13 is towards the bottom of lower chamber 18, another end
Portion is towards 17 direction of upper cavity, therefore after the cleaning solution flowed contacts the deflector 13, along the plate face direction of deflector 13
The movement of 17 direction of upper cavity.
On the basis of the set-up mode of above-mentioned deflector 13, further, first end and the lower chamber 18 of deflector 13
The direction of bottom connection, second end towards the upper cavity 17 of deflector 13 extends.
It should be noted that deflector 13 can be connect close to one end of 18 bottom of lower chamber with the bottom of lower chamber 18,
It can prevent cleaning solution from flowing into the gap to avoid the formation gap between 18 bottom surface of deflector 13 and lower chamber in this way, subtract
Enter the cleaning solution in upper cavity 17 less.Therefore it is provided in this way conducive to the farthest tactite of the cleaning solution in lower chamber 18
Sample, thus the soluble salt removal being conducive in rock core hole.
Further, the second end of all deflectors 13 towards same direction tilt, the inclined direction of deflector 13 with
Flow direction of the cleaning solution after the drive of radial-flow type blade is identical.
It should be noted that being vertically arranged compared to deflector 13, deflector 13 is obliquely installed convenient for guidance cleaning solution
Flowing, and the inclined direction of deflector 13 is identical as the flow direction of cleaning solution, it is possible to reduce and cleaning solution is transported along deflector 13
Consumed kinetic energy when dynamic, so that there are cleaning solution more kinetic energy to enter in upper cavity 17.The flow direction of cleaning solution can herein
To be flow direction after radial-flow type blade drives, it is to be understood that radial-flow type blade can drive cleaning solution to flow, to make
Cleaning solution is rotated around agitating shaft, and the direction of device rotation is its flow direction, be can be and is rotated clockwise or rotate counterclockwise, institute
There is deflector 13 also simultaneously towards tilting clockwise or counterclockwise.
On the basis of above-mentioned deflector 13, guiding subassembly further includes that multiple intervals are provided on the inner wall of accommodating cavity 11
Diversion trench 14, multiple diversion trenches 14 and multiple deflectors 13 are arranged in a one-to-one correspondence.
The first end of diversion trench 14 is docked with the second end of deflector 13, and the second end of diversion trench 14 is towards upper cavity 17
Direction extends, and diversion trench 14 is for guiding the cleaning solution for flowing through deflector 13 into upper cavity 17.
It should be noted that can smoothly enter into cleaning solution in upper cavity 17, be provided on the inside of accommodating cavity 11 with
The diversion trench 14 that deflector 13 docks.Wherein diversion trench 14 can be the groove being provided on 11 inside of accommodating cavity, which can
To be semi-circular recesses, V-shaped groove or dovetail groove, also or the groove of other shapes.
As a preferred embodiment, the first end of diversion trench 14 is located in lower chamber 18, the second of diversion trench 14
End is located in upper cavity 17, is spaced apart on partition 12 and is equipped with multiple avoid holes 122, and the middle section of multiple diversion trenches 14 is one-to-one
It is threaded through in multiple avoid holes 122.
It is located in lower chamber 18 it should be noted that diversion trench 14 can be a part, another part is located at upper cavity 17
In, middle section wears the avoid holes 122 of partition 12, and such setting can guide cleaning solution by partition 12, it is right to reduce partition 12
The barrier effect of cleaning solution.Wherein avoid holes 122 can be the edge that partition 12 is arranged in, and avoid holes 122 can be semicircle
Hole.
The embodiment of the present invention one provides a kind of rock core soluble salt cleaning device 100, the cleaning device include constant temperature bath 10,
Conductivity detection components 20 and controller 40 are arranged inside constant temperature bath 10 its accommodating cavity 11 being divided into upper cavity 17 and cavity of resorption
The partition 12 of body 18, controller 40 control 15 He of inlet valve according to the cleaning solution conductivity that conductivity detection components 20 detect
The opening and closing of liquid outlet valve 16, realizes the automatic control of rock core soluble salt cleaning process, and improves the precision of control.
By the way that mixing component 30 is arranged inside accommodating cavity 11,18 cleaning solution of lower chamber is driven using the axial-flow type blade of mixing component 30
Into upper cavity 17, cleaning solution is driven to the inner wall of accommodating cavity 11 using radial-flow type blade, and is driven via guiding subassembly
Into upper cavity 17, and by setting the deflector 13 being mutually butted and diversion trench 14 for guiding subassembly, partition 12 is reduced
To the barrier effect of cleaning solution, farthest the cleaning solution of lower chamber 18 is guided into upper cavity 17, is realized around rock sample
The removal rate of cleaning efficiency and soluble salt is improved in the bulk flow of cleaning solution.
Embodiment two
Fig. 4 is the flow diagram of rock core soluble salt cleaning method provided by Embodiment 2 of the present invention.Referring to shown in attached 4,
On the basis of the above embodiment 1, second embodiment of the present invention provides a kind of rock core soluble salt cleaning method, which can
With the following steps are included:
S1: obtain the conductivity of not used cleaning solution, the accommodating cavity cleaning liquid inside of constant temperature bath the first moment electricity
Conductance, the conductivity at the second moment and default conductivity threshold, the first moment and the second time at intervals preset duration.
S2: the conductance of the cleaning solution in preset duration is determined according to the conductivity of the conductivity at the first moment and the second moment
Rate difference.
S3: not used cleaning solution conductivity is determined according to the conductivity of not used cleaning solution and default conductivity threshold
Changing value.
S4: according to conductivity difference and default conductivity threshold and the conductivity at the second moment and not used cleaning
Liquid conductivity variations value determines the opening and closing of the inlet valve and liquid outlet valve of constant temperature bath.
It should be noted that not used cleaning solution is not contact with rock core in cleaning method provided in this embodiment
Cleaning solution, the various ions in rock core soluble salt are not included in the cleaning solution, and the conductivity of not used cleaning solution is denoted as σs.The
One moment t1With the second moment t2For any time in rock core cleaning process, when need to set is interval between the two
Long, as preset duration Δ t, the preset duration can be 1h, 2h or 3h etc..In the first moment t1The conductance of the cleaning solution of measurement
Rate, the as conductivityσ at the first moment1, in the second moment t2The conductivity of the cleaning solution of measurement, the as conductance at the second moment
Rate σ2.Default conductivity threshold is to be set in advance in preset duration Δ t conductivity variations threshold value, which can be with
It is set as needed, default conductivity threshold is denoted as σ0.It should be pointed out that above-mentioned each conductivity value is same temperature
Numerical value under degree.
Wherein, the electricity of the cleaning solution in preset duration is determined according to the conductivity of the conductivity at the first moment and the second moment
Conductance difference, can be according to formula
Δσ1=σ2-σ1 (1)
Determine conductivity difference.In formula, Δ σ1As conductivity difference.
Wherein, not used cleaning solution conductance is determined according to the conductivity of not used cleaning solution and default conductivity threshold
Rate changing value, can be according to formula
Δσ2=σs+σ0 (2)
Determine not used cleaning solution conductivity variations value.In formula, Δ σ2As not used cleaning solution conductivity variations
Value.
According to conductivity difference and default conductivity threshold and the conductivity at the second moment and not used cleaning solution electricity
Conductance changing value determines the opening and closing of the inlet valve and liquid outlet valve of constant temperature bath, can be following two judgment criteria:
As conductivity difference DELTA σ1Less than default conductivity threshold σ0, and the conductivityσ at the second moment2Less than not used cleaning solution
Conductivity variations value Δ σ2When, illustrate that the soluble salt removal rate in rock core reaches standard, can open liquid outlet valve at this time,
The cleaning solution in accommodating cavity after use is discharged.
If in the process of cleaning, having in above-mentioned two judgment criteria, any one is below standard, needs to open liquid outlet valve at this time
Cleaning solution in door emptying accommodating cavity closes liquid outlet valve later and opens inlet valve, cleaning solution is added into accommodating cavity
It carries out second to clean, repeats this step until above-mentioned two judgment criteria meets simultaneously.
Other technical characteristics are the same as example 1, and can reach identical technical effect, and this is no longer going to repeat them.
Second embodiment of the present invention provides a kind of rock core soluble salt cleaning method, which includes using above-mentioned rock core
Soluble salt cleaning device, controller control inlet valve and out liquid according to the cleaning solution conductivity that conductivity detection components detect
The opening and closing of mouth valve, realizes the automatic control of rock core soluble salt cleaning process, and improve the precision of control.Pass through appearance
Intracavitary portion's setting mixing component is set, is driven lower chamber cleaning solution into upper cavity using the axial-flow type blade of mixing component, benefit
Cleaning solution is driven to the inner wall of accommodating cavity with radial-flow type blade, and is driven via guiding subassembly into upper cavity, and lead to
It crosses and sets the deflector being mutually butted and diversion trench for guiding subassembly, reduce barrier effect of the partition to cleaning solution, maximum journey
Degree ground guides the cleaning solution of lower chamber into upper cavity, realizes the bulk flow of cleaning solution around rock sample, improves cleaning efficiency
With the removal rate of soluble salt.And in the cleaning method, while limiting conductivity difference DELTA σ1Less than default conductivity threshold
σ0, the conductivityσ at the second moment2Less than not used cleaning solution conductivity variations value Δ σ2, guarantee to judge soluble salt removal effect
Accuracy.
In the description of the present invention, it is to be understood that, term " on ", "lower", "front", "rear", "vertical" ", horizontal ",
The orientation or positional relationship of the instructions such as "top", "bottom", "inner", "outside" are to be based on the orientation or positional relationship shown in the drawings, only
It is for the convenience of describing the present invention and simplifying the description, rather than to indicate or imply that signified device or element must have spy
Fixed orientation is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In description of the invention
In, the meaning of " plurality " is two or more, accurately specifically provide unless otherwise.
The description and claims of this application and term " first ", " second ", " third ", " in above-mentioned attached drawing
The (if present)s such as four " are to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should manage
The data that solution uses in this way are interchangeable under appropriate circumstances, so that embodiments herein described herein for example can be to remove
Sequence other than those of illustrating or describe herein is implemented.In addition, term " includes " and " having " and theirs is any
Deformation, it is intended that cover it is non-exclusive include, for example, containing the process, method of a series of steps or units, system, production
Product or equipment those of are not necessarily limited to be clearly listed step or unit, but may include be not clearly listed or for this
A little process, methods, the other step or units of product or equipment inherently.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of rock core soluble salt cleaning device characterized by comprising
Constant temperature bath, the constant temperature bath include the accommodating cavity for containing cleaning solution, and the inside of the accommodating cavity, which is equipped with, to be used for
The accommodating cavity is divided into the partition of upper cavity and lower chamber, the partition, which is equipped with, is connected to the upper cavity and the lower chamber
Channel, rock sample to be cleaned is placed in the upper cavity, the stirring group for stirring and washing liquid is equipped in the lower chamber
Part is additionally provided with for the cleaning solution in the lower chamber to be guided to the guiding subassembly into the upper cavity in the accommodating cavity；
The test side of conductivity detection components, the conductivity detection components is located in the accommodating cavity, and contacts with cleaning solution,
For detecting the conductivity of cleaning solution；
Controller, the controller and the conductivity detection components, the inlet valve of the accommodating cavity, the accommodating cavity
Liquid outlet valve is electrically connected, and the controller is used to control the inlet valve and described according to the conductivity of cleaning solution
The opening and closing of liquid outlet valve.
2. rock core soluble salt cleaning device according to claim 1, which is characterized in that the mixing component includes that setting exists
The agitating shaft of the lower chamber bottom and the stirrer paddle for being arranged on the agitating shaft and being rotated around the agitating shaft；
The stirrer paddle includes multiple radial-flow type blades and multiple axial-flow type blades；
The axial-flow type blade is used to apply active force along the vertical direction to cleaning solution, so that the lower chamber cleaning solution passes through
The channel is moved in the upper cavity；
The radial-flow type blade is used to apply active force in the horizontal direction to cleaning solution, so that it is attached to be located at the radial-flow type blade
Close cleaning solution is moved at the inner wall of the lower chamber.
3. rock core soluble salt cleaning device according to claim 2, which is characterized in that the radial-flow type blade and the axis
Streaming blade, which is spaced apart from each other, to be arranged on the agitating shaft, and the radial-flow type blade and the axial-flow type blade are located at same water
In plane.
4. rock core soluble salt cleaning device according to claim 3, which is characterized in that the axial-flow type blade is arranged in institute
State the top along the vertical direction of radial-flow type blade.
5. rock core soluble salt cleaning device according to claim 2, which is characterized in that the guiding subassembly includes multiple leads
Flowing plate, multiple deflectors are arranged at intervals on the inner wall of the lower chamber, and the plate face of the deflector and the cavity of resorption
The inner wall of body intersects.
6. rock core soluble salt cleaning device according to claim 5, which is characterized in that the first end of the deflector and institute
The bottom connection of lower chamber is stated, the direction of second end towards the upper cavity of the deflector extends.
7. rock core soluble salt cleaning device according to claim 6, which is characterized in that the second end of all deflectors
It is tilted towards same direction, flowing side of the inclined direction and cleaning solution of the deflector after radial-flow type blade drive
To identical.
8. rock core soluble salt cleaning device according to claim 6, which is characterized in that the guiding subassembly further includes multiple
It is spaced the diversion trench being provided on the inner wall of the accommodating cavity, multiple diversion trenches and multiple deflector one-to-one correspondence are set
It sets；
The first end of the diversion trench is docked with the second end of the deflector, and the second end of the diversion trench is towards the epicoele
The direction of body extends, and the diversion trench is for guiding the cleaning solution for flowing through the deflector into the upper cavity.
9. rock core soluble salt cleaning device according to claim 8, which is characterized in that the first end of the diversion trench is located at
In the lower chamber, the second end of the diversion trench is located in the upper cavity, is spaced apart on the partition and is equipped with multiple evacuation
Hole, the middle section of multiple diversion trenches are threaded through correspondingly in multiple avoid holes.
10. a kind of rock core soluble salt cleaning method characterized by comprising
Obtain the conductivity of not used cleaning solution, the conductivity at the first moment of constant temperature bath cleaning liquid inside, the second moment
Conductivity and default conductivity threshold, first moment and the second time at intervals preset duration；
The cleaning solution in the preset duration is determined according to the conductivity of the conductivity at first moment and second moment
Conductivity difference；
Determine that not used cleaning solution conductivity becomes according to the conductivity of the not used cleaning solution and default conductivity threshold
Change value；
Described do not make according to the conductivity difference and the default conductivity threshold and the conductivity at second moment and
Cleaning solution conductivity variations value determines the opening and closing of the inlet valve and liquid outlet valve of constant temperature bath.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810252176.4A CN110361248B (en) | 2018-03-26 | 2018-03-26 | Core soluble salt cleaning device and cleaning method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810252176.4A CN110361248B (en) | 2018-03-26 | 2018-03-26 | Core soluble salt cleaning device and cleaning method |
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| CN110361248B CN110361248B (en) | 2020-08-11 |
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