CN208333364U - A kind of device of in situ measurement biofilm thickness - Google Patents
A kind of device of in situ measurement biofilm thickness Download PDFInfo
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- CN208333364U CN208333364U CN201821059954.XU CN201821059954U CN208333364U CN 208333364 U CN208333364 U CN 208333364U CN 201821059954 U CN201821059954 U CN 201821059954U CN 208333364 U CN208333364 U CN 208333364U
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- situ measurement
- rotary supporting
- biofilm thickness
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- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
本实用新型提供了一种原位测量生物膜厚度的装置，包括釜体，在釜体内轴向设置旋转支撑体，所述旋转支撑体与釜体之间存在环形间隙；所述旋转支撑体的下端通过转轴与电机相连；所述旋转支撑体的上端设置连接轴，所述釜体上设置顶盖，所述顶盖包括内盖和外环盖，所述内盖与连接轴固定相连，所述外环盖与釜体固定相连；所述旋转支撑体外壁设置卡槽，所述卡槽内对应插接匹配的测试滑片；所述滑片包括样品片，在样品片上分别设置两条竖直的薄膜电极，所述薄膜电极分别通过导线贯穿内盖上的贯穿孔。本实用新型所述的一种原位测量生物膜厚度的装置，实现原位无损地测量生物膜厚度，且测试简单，装配快捷，成本低廉。
The utility model provides a device for measuring the thickness of a biological film in situ, which comprises a kettle body, a rotary support body is axially arranged in the kettle body, and an annular gap exists between the rotary support body and the kettle body; The lower end is connected with the motor through the rotating shaft; the upper end of the rotating support body is provided with a connecting shaft, and the kettle body is provided with a top cover, the top cover includes an inner cover and an outer ring cover, and the inner cover is fixedly connected with the connecting shaft, so The outer ring cover is fixedly connected to the kettle body; the outer wall of the rotating support is provided with a card slot, and the card slot corresponds to a test slide that is inserted and connected; the slide includes a sample sheet, and two vertical pieces are respectively arranged on the sample sheet. Straight thin-film electrodes, the thin-film electrodes respectively pass through the through holes on the inner cover through wires. The device for in-situ measurement of biological film thickness described in the utility model realizes in-situ non-destructive measurement of biological film thickness, and has the advantages of simple test, quick assembly and low cost.
Description
Technical field
The utility model belongs to electrochemical measurement field, more particularly, to a kind of device of in situ measurement biofilm thickness.
Background technique
Metal erosion is that chemistry, electrochemistry or physics to a certain extent occur between metal material and locating surrounding medium
Effect, thus the rotten phenomenon caused.The etching problem of metal material is related to the every field in national economic development, nothing
By being in the production industries such as agricultural, industry, manufacturing industry and construction industry, the occasion for being related to metal material is all deposited to some extent
In the etching problem of material.The corrosion of metal material produces national economy, resource environment and social public security etc. all
It produces and seriously affects.Metal erosion is broadly divided into chemical attack, electrochemical corrosion, microbiologic(al) corrosion and physics corrosion.Metal
The factors such as humidity, temperature, dissolved oxygen, pH value, acid-alkali salt and the microorganism of surrounding materials surrounding medium can all influence metal material
Corrosion condition, microbiologic(al) corrosion often occurs simultaneously with chemical corrosion process, and the two is difficult well-separated.Water, soil, atmosphere
There is miscellaneous microorganisms in equal environment, they are intended to be adsorbed on various engineering material surfaces, form biomembrane
And constantly multiply existence.Microorganism growth and breeding are covered on corrosiveness caused by metal surface and specifically include that primary battery corruption
Erosion；Influence the anode or cathode reaction of electrochemical corrosion；Metal surface spot corrosion；Local anaerobic corrosion；Bacteria metabolism produces
The substances attack metal such as raw acid surface.
According to data, China every year because caused by metallic material corrosion loss account for the 5% of GDP, every year about caused by pass through
Ji loss is up to 500,000,000,000 yuan, and wherein microbiologic(al) corrosion accounts for about the 20% of all metals and construction material corrosion failure.Microorganism is rotten
Equipment in fields such as petroleum, chemical industry, aviation, machinery, nuclear energy, electric power, industrial water and recirculating cooling water systems often occurs for erosion
In corrosion.In the industry such as petrochemical industry, agricultural, papermaking, there is hair when the phenomenon that the damage of metal equipment, hazardous materials spillage
It is raw, surrounding enviroment are seriously polluted, public health is threatened.Meanwhile because of catastrophic failure caused by metallic material corrosion, thus broken
The phenomenon that bad public safety is commonplace, such as: the casing stress corrosion of the natural gas well is split, and blowout and explosion are caused；Chemical industry
Factory's ethylene raw accumulator tank causes high fire because sulfidic material corrodes, and causes casualties.
The biomembrane of material surface is complicated, dynamic change a microbe survival environment.Since biomembrane has
Certain thickness, in environment nutriment or dissolved oxygen etc. from liquid phase main body to biomembrane inside transmittance process in, concentration meeting
As the thickness of biomembrane persistently reduces.Biomembrane inside dissolved oxygen, pH value, various elements concentration and external environment are completely not
Together, and these material concentrations affect the metabolism and its corrosiveness of microorganism.The growth course of biomembrane determines
The heterogeneity of biomembrane spatially, and biofilm thickness also constantly changing.The in-situ monitoring of biofilm thickness is for life
The mass transport process of object film and interfacial corrosion process study are of great significance.It would therefore be highly desirable to which researching and developing one kind can measure in situ
In Corrosion Evaluation reactor on metal material biofilm thickness technology, to promote microbiologic(al) corrosion process study and corrosion anti-
The development and application of shield technology.
Summary of the invention
In view of this, the utility model is directed to a kind of device of in situ measurement biofilm thickness, realize in situ lossless
Ground measures biofilm thickness, and tests simply, and assembly is quick, low in cost.
In order to achieve the above objectives, the technical solution of the utility model is achieved in that
A kind of device of in situ measurement biofilm thickness, including autoclave body, are axially arranged rotary supporting body in autoclave body, described
There are annular gaps between rotary supporting body and autoclave body；The lower end of the rotary supporting body is connected to the motor by shaft；It is described
Connecting shaft is arranged in the upper end of rotary supporting body, is arranged top cover on the autoclave body, and the top cover includes inner cover and external ring lid, it is described in
Lid is fixedly linked with connecting shaft, and the external ring lid is fixedly linked with autoclave body；Card slot, the card is arranged in the rotary supporting body outer wall
The matched test slide plate of grafting is corresponded in slot；The slide plate includes sample strip, is respectively set in sample strip two vertical thin
Membrane electrode, the membrane electrode pass through conducting wire through the interior through hole covered respectively.
Further, the rotary supporting body is set as cylindrical, and the card slot is arranged along the even circumferential of rotary supporting body
Several, inside cover and are correspondingly arranged twice several through hole of card slot.
Further, the slide plate further includes fixing piece, and the size for fixing piece is greater than the size of sample strip, the fixing
Screw fastens between piece and sample strip.
Further, the material of the membrane electrode uses one of Cr, Ti, Cr/Au alloy or Ti/Au alloy.
Further, the card slot includes the first card slot and the second card slot, first card slot on the inside of the rotary supporting body,
There are gaps with rotary supporting body inner wall for first card slot.
Further, second card slot and the first card slot are set as resigning inclined surface close to side, resigning inclined surface with
There is 30-50 ° of angle between vertical plane.
Further, conductive clip is respectively set in the end of the conducting wire, and the conducting wire is projected through outside hole by conductive clip.
It further, further include detection analysis instrument, the positive test pole of the detection analysis instrument and negative testing pole pass through respectively leads
Line is connected with corresponding conductive clip.
Further, heat preservation sandwich layer is set outside the autoclave body.
Further, studdle is arranged in the outer rim lower end of the prominent autoclave body of the external ring lid, and the studdle is along external ring lid
Several are arranged in even circumferential.
Compared with the existing technology, a kind of device of in situ measurement biofilm thickness described in the utility model has following excellent
Gesture:
After running a period of time, the rotation for the supporter that stops rotating only need to will test analyzer and be connected with conducting wire,
Device is simple, and cost is relatively low, and convenient test is quick.
Top cover includes inner cover and external ring lid, and there are annular gaps between inner cover and external ring lid, separates inner cover and external ring lid,
Inside cover setting through hole, inner cover is rotated together with connecting shaft and rotary supporting body, guarantee the conducting wire that is inserted through in hole with
Membrane electrode on card slot corresponds, and will not relatively rotate.
Detailed description of the invention
The attached drawing for constituting a part of the utility model is used to provide a further understanding of the present invention, this is practical new
The illustrative embodiments and their description of type are not constituteed improper limits to the present invention for explaining the utility model.?
In attached drawing:
Fig. 1 is a kind of device explosion schematic diagram of in situ measurement biofilm thickness described in the utility model embodiment；
Fig. 2 is part A enlarged diagram in this Fig. 1；
Fig. 3 is detection analysis instrument described in the utility model embodiment and membrane electrode wire connection diagram.
Description of symbols:
1- autoclave body；2- rotary supporting body；The first card slot of 21-；The second card slot of 22-；3- slide plate；31- fixes piece；32- sample
Piece；33- membrane electrode；4- connecting shaft；5- top cover；51- inner cover；52- external ring lid；53- through hole；6- studdle；7- is conductive
Folder；8- detection analysis instrument.
Specific embodiment
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can
To be combined with each other.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate
Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand
To limit the utility model.In addition, term " first ", " second " etc. are used for description purposes only, and should not be understood as instruction or
It implies relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " second " etc. are defined as a result,
Feature can explicitly or implicitly include one or more of the features.In the description of the present invention, unless otherwise
Illustrate, the meaning of " plurality " is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, on being understood by concrete condition
State the concrete meaning of term in the present invention.
The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
Such as Fig. 1-3, a kind of device of in situ measurement biofilm thickness, including autoclave body 1, the axially setting rotation in autoclave body 1
Supporter 2, there are annular gaps between the rotary supporting body 2 and autoclave body 1；The lower end of the rotary supporting body 2 passes through shaft
It is connected to the motor；Connecting shaft 4 is arranged in the upper end of the rotary supporting body 2, and top cover 5 is arranged on the autoclave body 1, and the top cover 5 wraps
Inner cover 51 and external ring lid 52 are included, the inner cover 51 is fixedly linked with connecting shaft 4, and the external ring lid 52 is fixedly linked with autoclave body 1；Institute
2 outer wall of rotary supporting body setting card slot is stated, corresponds to the matched test slide plate 3 of grafting in the card slot；The slide plate 3 includes sample
Piece 32, is respectively set two vertical membrane electrodes 33 in sample strip 32, and the membrane electrode 33 is run through by conducting wire respectively
Through hole 53 on inner cover 51.
There are annular gaps between autoclave body 1 and rotary supporting body 2, certain experiment liquid are injected, for the life of its biomembrane
It is long；The card slot is radially set side by side two, and card slot axially extends；The matching of card slot and slide plate 3 is arranged, and is plugged and fixed
It is simple and convenient；And slide plate 3 keeps certain revolving speed to run under the drive of rotary supporting body 2, simulates persistently cutting in liquid flow
Under shear force, certain chemical index or microbiological factor make it closer to actual conditions the corrosiveness of slide plate 3 in liquid.
Top cover 5 includes inner cover 51 and external ring lid 52, and there are annular gaps between inner cover 51 and external ring lid 52, make 51 He of inner cover
External ring lid 52 separates, and through hole 53 is arranged on inner cover 51, and inner cover 51 is rotated together with connecting shaft 4 and rotary supporting body 2, guarantees
The membrane electrode 33 being inserted through on the conducting wire and card slot in hole 53 corresponds, and will not relatively rotate.
After running a period of time, the rotation for the supporter 2 that stops rotating only need to will test analyzer 8 and be connected i.e. with conducting wire
Can, device is simple, and cost is relatively low, and convenient test is quick.
The setting of external ring lid 52, plays the role of shield；Guarantee the annular gap between rotary supporting body 2 and autoclave body 1
For stable environment, the entrance of other foreign matters is not had.
Wherein, autoclave body 1 is set as cylinder-shaped, and material is glass jar；Its rotary supporting body 2 is set as cylindrical, rotation branch
Annular gap is set as between support body 2 and autoclave body 1, experiment is injected in the inner with liquid.
Circumferentially outer wall is uniformly arranged several to card slot in rotary supporting body 2, and suitable number is 20.
The rotary supporting body 2 is set as cylindrical, and the card slot is several along the even circumferential setting of rotary supporting body 2
It is a, card slot twice several through hole 53 is correspondingly arranged on inner cover 51.
Two vertical membrane electrodes are arranged in the sample strip 32 of each slide plate 3 for one slide plate 3 of grafting on each card slot
33, every membrane electrode 33 is inserted separately into through hole 53 by conducting wire, so the quantity of through hole 53 is the two of pocket numbers
Times.
The slide plate 3 further includes fixing piece 31, and the size for fixing piece 31 is greater than the size of sample strip 32, the fixing
Screw fastens between piece 31 and sample strip 32.
The material for fixing piece 31 is polytetrafluoroethylene (PTFE), and the material of sample strip 32 is metal；The size for fixing piece 31 is greater than sample
The size of product piece 32, is conveniently plugged and fixed, and will not move radially, facilitates grafting installation and removal in the axial direction；
Embodiment: the size of sample strip 32 is width 1.27cm, long 13cm, thick 0.35cm；The size for fixing piece 31 is length
15cm, wide 1.67cm, thick 0.5cm.
The material of the membrane electrode 33 uses one of Cr, Ti, Cr/Au alloy or Ti/Au alloy.
Two vertical membrane electrodes 33, preparation method are set in sample strip 32 are as follows: are prepared with the method for laser ablation
Mask smears one layer of thin photoresist on 32 surface of sample strip, mask and sample strip 32 is precisely aligned, then exposed
Complete the preparation of membrane electrode 33 after light, development and Deposited By Dc Magnetron Sputtering film layer.The width of its membrane electrode 33
For 1mm, long 13cm, conductive layer thickness is 10 μm, and the spacing between two membrane electrodes 33 is 0.8cm.The wherein material of conductive layer
Matter uses one of Cr, Ti, Cr/Au alloy or Ti/Au alloy.
The card slot includes the first card slot 21 and the second card slot 22, first card slot 21 close to the inside of rotary supporting body 2,
There are gaps with 2 inner wall of rotary supporting body for first card slot 21.Second card slot 22 is set with the first card slot 21 close to side
Resigning inclined surface is set, there is 30-50 ° of angle between resigning inclined surface and vertical plane.
There are gap between 2 inner wall of first card slot 21 and rotary supporting body, and setting resigning inclined surface, two kinds of designs be for
Enable the extraction of the slide plate 3 corroded freely, the corrosion product by corrosion 3 surface of slide plate is avoided to be inflated tightly fitting card
Slot, the problem of causing slide plate 3 that can not extract out.
Wherein proper angle is set as 45 ° between resigning inclined surface and vertical plane.
Conductive clip 7 is respectively set in the end of the conducting wire, and the conducting wire is projected through outside hole 53 by conductive clip 7.
On the one hand fixed effect is played the role of in the effect of conductive clip 7, on the other hand play connection, and prevents from leaking electricity,
Improve security performance.
Further include detection analysis instrument 8, the positive test pole of the detection analysis instrument 8 and negative testing pole pass through respectively conducting wire with it is right
The conductive clip 7 answered is connected.
The detection analysis instrument 8 uses 2700 multimeter of Keithley, the positive test pole of 2700 multimeter of Keithley
Conducting wire is separately connected with negative testing pole, after the rotation operation a period of time of rotary supporting body 2, is stopped rotating, and conducting wire is passed through with being exposed to
Conductive clip 7 outside perforation 53 is connected, and can be connected；It realizes and is measured between two membrane electrodes 33 in situ since biomembrane is raw
Curent change caused by length.
Heat preservation sandwich layer is set outside the autoclave body 1.The liquid for setting certain temperature is filled in heat preservation sandwich layer, makes its reactor one
Determine to run under constant temperature.Make its better simulating actual conditions.
Test philosophy: between two conductive membrane electrodes 33 being the biomembrane grown in metallic substrates in sample strip 32.
The operation of supporter 2 is rotated with, the nutriment in autoclave body 1 in liquid to grow microbial film in metallic substrates, with
Different meeting of biofilm thickness are so that the resistance between two electrodes changes, the meeting in the case where holding applied voltage is constant
So that 2700 multimeter system acquisition of Keithley to electric current change.Therefore it is two thin certain moment can be measured in situ
The curent change as caused by biofilm development between membrane electrode 33, using Labview system log data, according to Ohm's law
The biofilm thickness of metal material surface growth can be calculated.
The resistance of microbial film in sample strip 32,3 parameters of voltage and current relationship obey Ohm's law, expression formula
Are as follows:
R=V/I=(ρ) L/A=(ρ) L/ (W × D)
R is the resistance of biomembrane in formula, and V is voltage, and I is electric current, and ρ is the resistivity of biomembrane, and L is biological film length,
A is the sectional area of biomembrane, and W is biomembrane width, and D is biofilm thickness.The resistivity of microbial film can pass through related hand
Volume checks in, the sectional area A of biological film length L and biomembrane width W or biomembrane be in sample strip 32 membrane electrode 33 be side
Length, width and the sectional area on boundary.So can be obtained the thickness of the biomembrane grown in the moment sample strip 32 by calculating
D。
The above is only the preferred embodiment of the utility model only, be not intended to limit the utility model spirit and
Within principle, any modification, equivalent replacement, improvement and so on be should be included within the scope of the utility model.
Claims (10)
1. a kind of device of in situ measurement biofilm thickness, it is characterised in that: including autoclave body (1), be axially arranged in autoclave body (1)
Rotary supporting body (2), there are annular gaps between the rotary supporting body (2) and autoclave body (1)；The rotary supporting body (2)
Lower end is connected to the motor by shaft；Connecting shaft (4) are arranged in the upper end of the rotary supporting body (2), are arranged on the autoclave body (1)
Top cover (5), the top cover (5) include inner cover (51) and external ring lid (52), and the inner cover (51) is fixedly linked with connecting shaft (4),
The external ring lid (52) is fixedly linked with autoclave body (1)；Card slot is arranged in rotary supporting body (2) outer wall, corresponds in the card slot
The matched test slide plate (3) of grafting；The slide plate (3) includes sample strip (32), and two are respectively set on sample strip (32) and erects
Straight membrane electrode (33), the membrane electrode (33) run through the through hole (53) on inner cover (51) by conducting wire respectively.
2. a kind of device of in situ measurement biofilm thickness according to claim 1, it is characterised in that: the rotation support
Body (2) is set as cylindrical, several are arranged in even circumferential of the card slot along rotary supporting body (2), inner cover (51) on pair
Card slot twice several through hole (53) should be set.
3. a kind of device of in situ measurement biofilm thickness according to claim 1, it is characterised in that: the slide plate (3)
It further include fixing piece (31), the size for fixing piece (31) is greater than the size of sample strip (32), the fixing piece (31) and sample
Screw fastens between product piece (32).
4. a kind of device of in situ measurement biofilm thickness according to claim 1, it is characterised in that: the membrane electrode
(33) material uses one of Cr, Ti, Cr/Au alloy or Ti/Au alloy.
5. a kind of device of in situ measurement biofilm thickness according to claim 1, it is characterised in that: the card slot includes
First card slot (21) and the second card slot (22), first card slot (21) is on the inside of rotary supporting body (2), first card slot
(21) there are gaps with rotary supporting body (2) inner wall.
6. a kind of device of in situ measurement biofilm thickness according to claim 5, it is characterised in that: second card slot
(22) resigning inclined surface is set close to side with the first card slot (21), with 30-50 ° between resigning inclined surface and vertical plane
Angle.
7. a kind of device of in situ measurement biofilm thickness according to claim 1, it is characterised in that: the end of the conducting wire
End is respectively set conductive clip (7), and the conducting wire projects through hole (53) outside by conductive clip (7).
8. a kind of device of in situ measurement biofilm thickness according to claim 7, it is characterised in that: further include detection point
Analyzer (8), the positive test pole of the detection analysis instrument (8) and negative testing pole pass through conducting wire and corresponding conductive clip (7) phase respectively
Even.
9. a kind of device of in situ measurement biofilm thickness according to claim 1, it is characterised in that: the autoclave body (1)
Outside setting heat preservation sandwich layer.
10. a kind of device of in situ measurement biofilm thickness according to claim 1, it is characterised in that: the external ring lid
(52) studdle (6) are arranged in the outer rim lower end of prominent autoclave body (1), and the studdle (6) is along external ring lid (52) even circumferential
Several are set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821059954.XU CN208333364U (en) | 2018-07-05 | 2018-07-05 | A kind of device of in situ measurement biofilm thickness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821059954.XU CN208333364U (en) | 2018-07-05 | 2018-07-05 | A kind of device of in situ measurement biofilm thickness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208333364U true CN208333364U (en) | 2019-01-04 |
Family
ID=64786206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201821059954.XU Active CN208333364U (en) | 2018-07-05 | 2018-07-05 | A kind of device of in situ measurement biofilm thickness |
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| CN (1) | CN208333364U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116083844A (en) * | 2023-02-10 | 2023-05-09 | 山东微波电真空技术有限公司 | Method and system for manufacturing an attenuator |
-
2018
- 2018-07-05 CN CN201821059954.XU patent/CN208333364U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116083844A (en) * | 2023-02-10 | 2023-05-09 | 山东微波电真空技术有限公司 | Method and system for manufacturing an attenuator |
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