CN205593963U - A electrolysis trough for test of on --spot electrochemistry - Google Patents
A electrolysis trough for test of on --spot electrochemistry Download PDFInfo
- Publication number
- CN205593963U CN205593963U CN201620135638.0U CN201620135638U CN205593963U CN 205593963 U CN205593963 U CN 205593963U CN 201620135638 U CN201620135638 U CN 201620135638U CN 205593963 U CN205593963 U CN 205593963U
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- China
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- base plate
- sample
- electrolysis bath
- frenulum
- sealing ring
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Abstract
The utility model discloses an electrolysis trough for test of on - -spot electrochemistry, it relates to the ageing nondestructive test's of turbine rotor electrochemistry testing arrangement. It is including the apron, the electrolysis trough barrel, the bottom plate, the sealing washer, the sample holds in the palm and the frenulum, the apron is stamped on the upper portion of electrolysis trough barrel, the upper portion of electrolysis trough barrel is circular cylinder, the middle part of electrolysis trough barrel is the back taper barrel, cone -shaped vessel's below is connected with one section circular cylinder, the bottom of lower part barrel is fixed on a rectangular shape flexible elastic base plate, the electrolysis trough barrel passes through trompil and sample or work piece intercommunication on the bottom plate, the lower surface of bottom plate is connected with the sealing washer, the bottom plate has the sample to hold in the palm through the bolt fastening, the both ends of bottom plate are connected with the frenulum, the electrolysis trough passes through the frenulum and fixes on the measured workpiece during existing field test. The utility model discloses can be used for the laboratory measurement also can be used for the in -site measurement, the suitability is strong, and is fixed convenient, and firm reliable, the practicality is strong, easily uses widely.
Description
Technical field
The utility model relates to the electrochemical testing device of the aging Non-Destructive Testing of turbine rotor,
It is specifically related to a kind of electrolysis bath for field electrochemical test.
Background technology
Temperature of power plant steam turbine rotor operationally runs up with the speed of 3000 turns per minute, bears
Huge stress, it is desirable to the material manufacturing turbine rotor has good intensity and toughness.Vapour
Turbine wheel material will be fragility by ductility transmition when temperature is less than a certain temperature, and this temperature claims
For " ductile-brittle transition temperature (FATT) ", rotor is easy to be subject to when less than operation at a temperature of FATT
To damage, even rupture.Therefore, need to carry out warming-up when steam turbine cold start-up and make temperature of rotor
It is increased to more than FATT, could start to run up.
But, due to a variety of causes, the FATT of turbine rotor can rise along with running time lengthening
Height, after the FATT of rotor raises, needs the proper extension warm-up period when cold start-up so that steam turbine
The temperature of rotor is increased to more than FATT, to this end, for the operation time machine more than 100,000 hours
Group should make regular check on its FATT, to determine the warm-up period of steam turbine.
The measurement of in-service turbine rotor FATT needs to use Dynamic Non-Destruction Measurement, and one of which is lossless
Detection technique is to be joined by the feature measuring on turbine rotor polarization curve in specific electrolyte
Number measures the FATT of turbine rotor, and this technology needs the steamer polished of certain area
Machine rotor surface is exposed in electrolyte, and with soak auxiliary electrode in the electrolytic solution, reference electricity
The composition three-electrode system such as pole, potentiostat is applied to Steam Turbine Rotor Materials and auxiliary by regulation
Electric current (I) between electrode, controls the potential difference (E) between turbine rotor and reference electrode.Survey
Determine the I change with E, obtain the polarization curve of turbine rotor, according to the feature on polarization curve
Parameter, can record the FATT of turbine rotor.
In said determination, electrolyte and reference electrode, auxiliary electrode need to be placed in electrolysis bath,
The surface of turbine rotor needs to expose in the electrolytic solution, and exposed area need to accurately be measured.To this end,
It is required to the electrolysis bath for on-the-spot test.
Additionally, due to turbine rotor is very big, electrolysis bath needs to be securely fixed on rotor, with
Time need to consider, the diameter of different rotors is different.On the other hand, during due to electro-chemical test,
Electrolyte has certain resistance, has a certain distance, make between reference electrode and specimen surface
Obtain and there is certain error between virtual electrode current potential and the electrode potential recorded of sample.Steam turbine
First the detection of the aging grade of rotor is to set up rotor Ageing Index parameter by experiment in the lab
The mathematical model of relation between (such as FATT) and electrochemical parameter, the steam turbine recorded further according to scene
The electrochemical parameter value of rotor, passes through set up mathematical model and is calculated the old of turbine rotor
Change desired value (such as FATT), as laboratory experiment uses identical electrolysis bath with on-the-spot test, can subtract
The little error caused due to the difference between laboratory experiment and on-the-spot test.
In order to solve the problems referred to above, design a kind of novel electrolysis bath for field electrochemical test
Or it is necessary.
Utility model content
For not enough present on prior art, the purpose of this utility model is to be to provide a kind of use
In field electrochemical test electrolysis bath, simple in construction, reasonable in design, can be used for laboratory survey
Amount can be used for in-site measurement, and the suitability is strong, and convenient fixing is solid and reliable, practical, easily
In promoting the use of.
To achieve these goals, this utility model is to realize by the following technical solutions: one
Plant the electrolysis bath for field electrochemical test, including cover plate, electrolyzer tube, base plate, sealing
Circle, sample torr and frenulum, the top of electrolyzer tube is stamped cover plate, and the top of electrolyzer tube is
Circular cylinder body, the middle part of electrolyzer tube is inverted cone cylinder, and the lower section of negative angle container connects to be had
One section of circular cylinder body, the bottom of lower cylinder is fixed on a flexible elastic bottom plate of strip, electricity
Solving groove drum body to be connected with sample or workpiece by the perforate on base plate, the lower surface connection of base plate has close
Seal, base plate has been bolted sample torr, and the two ends of base plate connect frenulum, on-the-spot test
Time electrolysis bath be fixed on measured workpiece by frenulum, cover plate, electrolyzer tube, base plate all use
Polrvinyl chloride material.
Sample torr only uses when laboratory experiment.
As preferably, the thickness of described cover plate is more than 2mm, cover plate is provided with and is easy to fixing reference electricity
Pole and the electrode fixing holes of auxiliary electrode.
As preferably, the width of described base plate is not less than 40mm, and the thickness of base plate is 1mm-1.5mm,
The length of base plate is not more than the upper circular cylinder external diameter of electrolyzer tube, in base plate, sample torr all
Have four apertures that position is corresponding, by bolt, sample torr is fixed when laboratory experiment
On base plate, and make specimen surface closely sealed with sealing ring, it is ensured that electrolyte is not revealed.
As preferably, described sealing ring uses teflin ring, and sealing ring passes through epoxy
Resin is directly bonded on the lower surface of base plate, to prevent electrolyte from revealing.
As preferably, described sample torr is the specimen holder when laboratory experiment, sample torr
Length, width and the length of base plate, width identical, the thickness of sample torr is the twice of base plate；
Have square indentations in sample torr, the length of side of groove slightly larger than the external diameter of sealing ring, groove deep
Degree is slightly less than the thickness of sealing ring, and during laboratory test, laboratory sample, as in sample torr, tries
Sample torr is bolted on electrolysis bath.
As preferably, described groove is provided with metallic gasket and passes the wire of backboard below groove,
Metallic gasket in groove changes spacer thickness or quantity according to sample thickness, so that sample upper surface
On slot opening, the degree of depth on edge is welded less than the thickness of sealing ring, the wire extended from groove
On metallic gasket, for the electrical connection of sample.
As preferably, described frenulum uses flexible and the more preferable magic tape of intensity, belt etc., is
The width of band is identical with the width of base plate, a length of 300mm-500mm of frenulum.
The beneficial effects of the utility model: (1) simple in construction, sealing ring is directly bonded under base plate
Surface, electrolysis bath center of gravity is low.
(2) the flexible strap stationary electrolysis groove such as magic tape, belt, the suitability to diameter of work are used
By force, convenient fixing, solid and reliable.
(3) have the degree of depth in laboratory sample torr and be slightly less than the groove of sealing ring thickness, place in groove
Metallic gasket, metallic gasket is connected with plain conductor, and electrolysis bath can be not only used for field electrochemical test,
Can also be used for laboratory electro-chemical test, the suitability is strong.
Accompanying drawing explanation
This utility model is described in detail below in conjunction with the accompanying drawings with detailed description of the invention；
Fig. 1 is structural representation of the present utility model；
Fig. 2 is section plan of the present utility model.
Detailed description of the invention
For the technological means making this utility model realize, creation characteristic, reach purpose and be prone to effect
Understand and understand, below in conjunction with detailed description of the invention, this utility model is expanded on further.
With reference to Fig. 1-2, this detailed description of the invention by the following technical solutions: a kind of for on-the-spot electrification
Learn the electrolysis bath of test, including cover plate 1, electrolyzer tube 2, base plate 3, sealing ring 4, sample
Torr 5 and frenulum 6, the top of electrolyzer tube 2 is stamped cover plate 1, and the bottom of electrolyzer tube 2 is solid
Being scheduled on base plate 3, the lower surface of base plate 3 connects has sealing ring 4, sealing ring 4 to use polytetrafluoroethyl-ne
Alkene sealing ring, sealing ring 4 is directly bonded on the lower surface of base plate 3 by epoxy resin, in case
Only electrolyte is revealed, and base plate 3 has been bolted sample torr 5, and the two ends of base plate 3 connect to have and are
Band 6, during on-the-spot test, electrolysis bath is fixed on measured workpiece by frenulum 6, cover plate 1, electrolysis bath
Cylinder 2, base plate 3 all use polrvinyl chloride material, and the thickness of cover plate 1 is more than 2mm.
It should be noted that the width of described base plate 3 is not less than 40mm, the thickness of base plate 3 is 1mm
-1.5mm, the length of base plate 3 is not more than the upper circular cylinder external diameter of electrolyzer tube 2, base plate 3,
All have four apertures 8 that position is corresponding in sample torr 5, when laboratory experiment, pass through bolt
Sample torr is fixed on base plate 3, and makes specimen surface closely sealed with sealing ring, it is ensured that electrolyte is not
Reveal.
It should be noted that described sample torr 5 is the specimen holder when laboratory experiment,
The length of sample torr 5, width and the length of base plate 3, width are identical, and the thickness of sample torr 5 is
The twice of base plate 3；Having square indentations 9 in sample torr 5, the length of side of groove 9 is slightly larger than sealing
The external diameter of circle 4, the degree of depth of groove 9 is slightly less than the thickness of sealing ring 4, during laboratory test, real
Testing room sample as in sample torr, sample torr 5 is bolted on electrolysis bath.
It should be noted that and described groove 9 is provided with metallic gasket and carries on the back below groove 9
The wire of plate, the metallic gasket in groove 9 changes spacer thickness or quantity according to sample thickness, with
On groove 9 opening, the degree of depth on edge is less than the thickness of sealing ring 4, from groove 9 to make sample upper surface
In the wire that extends be welded on metallic gasket, for the electrical connection of sample.
Additionally, the width of described frenulum 6 is identical with the width of base plate 3, frenulum 6 a length of
300mm-500mm。
The top of this detailed description of the invention electrolyzer tube 2 is circular cylinder body, electrolyzer tube 2
Middle part is inverted cone cylinder, and the lower section of negative angle container connects the circular cylinder body that one section of diameter is less,
The cover plate 1 that is stamped suitable for reading of upper container, cover plate 1 is provided with electrode fixing holes 7, it is simple to fixing ginseng
Ratio electrode and auxiliary electrode, the two electrode fixing holes 7 is also electrolyte inlet simultaneously, electrolysis
The bottom of the lower cylinder of groove drum body 2 is fixed on a flexible elastic bottom plate of strip 3, is used for
Being fixed on by electrolysis bath on the test components such as turbine rotor, electrolyzer tube 2 is by base plate 3
Perforate connect with sample or workpiece.
Perforate bottom on described base plate 3 connects a rubber seal 4, the perforate on lower raft
Diameter is equal with the internal diameter of sealing ring 4, and this diameter exposes work in the electrolytic solution more than measured workpiece
Making area, measured workpiece exposes work area in the electrolytic solution according to the material of test component, electricity
The maximum current value of the character and the permission of used test instrument that solve liquid determines, to tested during test
Part seals, and is only exposed in electrolyte equal to the surface of the work of work area by area, in case
The crevice corrosion only caused due to the gap between sealing ring and workpiece or specimen surface；Sealing ring 4
Directly it is bonded in the lower surface of base plate 3 with corrosion-resistant binding agent, to reduce height and the weight of electrolysis bath
The heart, makes electrolysis bath be easy to fix；The two ends of base plate 3 connect have that width is not less than baseplate width be
Band 6, for being fixed on rotor by electrolysis bath and guaranteeing that electroless liquid is revealed, frenulum uses intensity foot
Enough big magic tapes, belt etc..
This detailed description of the invention for one for metal material being carried out field electrochemical measurement, especially
Being for the aging Non-Destructive Testing of turbine rotor and to be easily installed fixing electrolysis bath, electrolyte leads to
Crossing bottom of electrolytic tank aperture directly to contact with measured workpiece surface, fixing frenulum passes through base plate to bottom
Sealing ring applies sufficiently large stress, it is ensured that electrolyte is not revealed, thus realizes not to workpiece
Under conditions of damaging, workpiece being carried out electro-chemical test, the suitability is strong, has wide market
Application prospect.
Of the present utility model ultimate principle and principal character and this utility model have more than been shown and described
Advantage.Skilled person will appreciate that of the industry, this utility model is not limited by above-described embodiment
System, simply illustrates principle of the present utility model described in above-described embodiment and description, is not taking off
On the premise of this utility model spirit and scope, this utility model also has various changes and modifications,
In the range of these changes and improvements both fall within claimed this utility model.This utility model requirement
Protection domain is defined by appending claims and equivalent thereof.
Claims (9)
1. the electrolysis bath for field electrochemical test, it is characterized in that, including cover plate (1), electrolyzer tube (2), base plate (3), sealing ring (4), sample torr (5) and frenulum (6), cover plate (1) is stamped on the top of electrolyzer tube (2), the bottom of electrolyzer tube (2) is fixed on base plate (3), the lower surface of base plate (3) connects sealing ring (4), base plate (3) has been bolted sample torr (5), the two ends of base plate (3) connect frenulum (6), cover plate (1), electrolyzer tube (2), base plate (3) all uses polrvinyl chloride material.
A kind of electrolysis bath for field electrochemical test the most according to claim 1, it is characterized in that, the thickness of described cover plate (1) is more than 2mm, cover plate (1) is provided with and is easy to fixing reference electrode and the electrode fixing holes (7) of auxiliary electrode.
A kind of electrolysis bath for field electrochemical test the most according to claim 1, it is characterized in that, the top of described electrolyzer tube (2) is circular cylinder body, the middle part of electrolyzer tube (2) is inverted cone cylinder, the lower section of negative angle container connects one section of circular cylinder body, and the bottom of lower cylinder is fixed on the flexible elastic bottom plate of a strip (3).
4. according to a kind of electrolysis bath for field electrochemical test described in claim 1 or 3, it is characterized in that, the width of described base plate (3) is not less than 40mm, the thickness of base plate (3) is 1mm-1.5mm, the length of base plate (3) is not more than the upper circular cylinder external diameter of electrolyzer tube (2), all have four apertures (8) that position is corresponding in base plate (3), sample torr (5), be connected by aperture (8) and bolt are fixing between base plate (3) with sample torr (5).
A kind of electrolysis bath for field electrochemical test the most according to claim 1, it is characterized in that, described sealing ring (4) uses teflin ring, and sealing ring (4) passes through adhering with epoxy resin on the lower surface of base plate (3).
A kind of electrolysis bath for field electrochemical test the most according to claim 1, it is characterized in that, described sample torr (5) is the specimen holder when laboratory experiment, the length of sample torr (5), width and the length of base plate (3), width are identical, the twice that thickness is base plate (3) of sample torr (5).
A kind of electrolysis bath for field electrochemical test the most according to claim 1, it is characterized in that, square indentations (9) is had in described sample torr (5), the length of side of groove (9) is more than the external diameter of sealing ring (4), and the degree of depth of groove (9) is less than the thickness of sealing ring (4).
A kind of electrolysis bath for field electrochemical test the most according to claim 7, it is characterized in that, being provided with the metallic gasket for sample electrical connection and the wire through groove (9) lower section backboard in described groove (9), the wire extended from groove (9) is welded on metallic gasket.
A kind of electrolysis bath for field electrochemical test the most according to claim 1, it is characterized in that, described frenulum (6) uses the flexible and more preferable magic tape of intensity, the width of frenulum (6) is identical with the width of base plate (3), a length of 300mm-500mm of frenulum (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620135638.0U CN205593963U (en) | 2016-02-03 | 2016-02-03 | A electrolysis trough for test of on --spot electrochemistry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620135638.0U CN205593963U (en) | 2016-02-03 | 2016-02-03 | A electrolysis trough for test of on --spot electrochemistry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205593963U true CN205593963U (en) | 2016-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620135638.0U Expired - Fee Related CN205593963U (en) | 2016-02-03 | 2016-02-03 | A electrolysis trough for test of on --spot electrochemistry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205593963U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108614026A (en) * | 2018-05-02 | 2018-10-02 | 重庆大学 | Electrochemistry teaching or testing equipment and its assemble method |
-
2016
- 2016-02-03 CN CN201620135638.0U patent/CN205593963U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108614026A (en) * | 2018-05-02 | 2018-10-02 | 重庆大学 | Electrochemistry teaching or testing equipment and its assemble method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160921 Termination date: 20170203 |