CN202886245U - Deep-sea field erosion electrochemical testing device - Google Patents
Deep-sea field erosion electrochemical testing device Download PDFInfo
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- CN202886245U CN202886245U CN 201220516519 CN201220516519U CN202886245U CN 202886245 U CN202886245 U CN 202886245U CN 201220516519 CN201220516519 CN 201220516519 CN 201220516519 U CN201220516519 U CN 201220516519U CN 202886245 U CN202886245 U CN 202886245U
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Abstract
The utility model belongs to the technical field of ocean engineering, and particularly relates to a deep-sea field erosion electrochemical testing device. The deep-sea field erosion electrochemical testing device comprises a pressure-proof watertight electronic cabin, an erosion electrochemical testing system located inside the pressure-proof watertight electronic cabin, a plug-in type electrode system integrated outside one end of the pressure-proof watertight electronic cabin, and a porous screening cover; the erosion electrochemical testing system is connected with the plug-in type electrode system through a lead wire; and the porous screening cover is mounted at one end of the pressure-proof watertight electronic cabin, and covers the plug-in type electrode system inside. The deep-sea field erosion electrochemical testing device provided by the utility model can be used for developing in-situ real-time rapid detection operation in a deep see condition, and has the characteristics of high pressure resistance, water seepage prevention, erosion resistance, strong anti-jamming capability, small size, high strength, good insulating and sealing properties and the like.
Description
Technical field
The utility model belongs to field of ocean engineering, specifically the on-the-spot corrosion electrochemical test system in a kind of deep-sea.
Background technology
Marine environment is a kind of corrosion environment of harshness, and the metallic structures such as port installations, oil platform, subsea pipeline, marine ship, deep sea vehicle all must think over the etching problem that marine environment brings in the design and use process.In order to grasp corrosion behavior and the rule of various materials in marine environment; for the exploitation of design, selection, protection and the new material of fixing or mobile ocean steel construction provides basis and foundation; must carry out the corrosion test of real extra large environment, accumulate the corrosion data of various materials in practical service environment.At present, the corrosion test in the surface seawater has all been set up test method and the technology of standard both at home and abroad, and corrosion behavior and the rule of metal material in surface seawater also had more deep understanding, has accumulated the basic data of a large amount of preciousnesses.Yet, because the complicacy of deep-marine-environment, the material Deep sea corrosion test in the our times scope carry out also seldom, the deep-sea corrosion data of China be blank substantially.
The developed countries such as the U.S., USSR (Union of Soviet Socialist Republics), Japan, Holland, India have just begun the deep-marine-environment corrosion test of material as far back as the sixties in 20th century.For example, 1988～1989 years U.S. deep-sea consulting service companies are subjected to ARCO Oil﹠amp; Gas company Commission Design deep water exposes corrosion testing apparatus, and is responsible for making and throwing in; Nineteen ninety, U.S. deep-sea consulting service company is subjected to Chevron company Commission Design deep water to expose corrosion testing apparatus, and is responsible for making and throwing in.The purpose of these tests is corrosive natures of research deep-sea PetroChina Company Limited. facility, and test method is limited as the weight-loss corrosion test under the exposure condition of deep-sea more.The deep-sea exposes zero-G test complicated operation, consuming time, dangerous, costly, and equipment failure rate is high, the recovery is low, in case go wrong, direct loss will reach up to a million dollars, and time and the workload of loss can't be estimated; But its subject matter is that also weight-loss method only can provide the average data of macroscopic view, and the mechanistic information of interface microcosmic effect can not be provided, and be difficult to accomplish fast, original position and measuring in real time.According to India, expose through 174 days deep-seas, only obtain corrosion depth data and the corresponding environmental factor data of 4 depth of waters of 5 kinds of ferroalloys.
Deep-sea simulated acceleration test as zero-G test research for matching means, can carry out fast, easily deep-sea simulated acceleration test to various types of materials, parts and small members, corrosion regularity and the mechanism of research material under simulated conditions is replenished mutually with Natural Environmental Test.For example, the deep water corrosion testing apparatus that Finland Cormet company makes utilizes the flow circuit system to control the physical-chemical parameters of seawater, carries out the corrosion test of material under pressure and various condition of water quality, and tests and demarcate various sensors.But even like this, it is very difficult, dangerous and expensive that the deep-sea simulated acceleration test remains.And in the material corrosion experimental study of surface seawater, obtain the very electrochemical test method of ten-strike; it not only can provide the information of abundant interface microcosmic effect; and it fast, original position, the advantage measured in real time also be that the deep-sea exposes the methods such as zero-G test and deep-sea simulated acceleration test and is difficult to accomplish, thereby it should become the Main Means of research material deep-sea corrosion behavior, mechanism and guard method thereof.But, electrochemical test method can only be used under the condition of indoor normal pressure and simulation deep-sea water quality mostly at present, electro-chemical test under the high hydrostatic pressure condition remains at certain difficulty, and also is difficult to Measurement accuracy in the high hydrostatic pressure and controls various to the influential seawater quality condition of corrosion process in keeping electrolytic cell.Because deep-marine-environment has its unique environmental corrosion characteristic, even can be at the indoor actual environment that simulates fully, the data result that obtains in the laboratory still need to be verified under real extra large environment.
The utility model content
In order to solve the problem of above-mentioned existence, the purpose of this utility model is to provide a kind of deep-sea on-the-spot corrosion electrochemical test system.This proving installation can carry out original position under with interior sea, detect operation in real time, fast, to obtain polarization curve, electrochemical impedance spectroscopy and the corresponding reaction power mathematic(al) parameter of main oceanographic engineering material in deep-marine-environment 100～1000 meters depth of waters.
The purpose of this utility model is achieved through the following technical solutions:
Proving installation comprises withstand voltage watertight electronic compartment, is positioned at the corrosion electrochemistry test macro of described withstand voltage watertight electronic compartment, is integrated in the plug connector formula electrode system of described withstand voltage watertight electronic compartment one end outside, the porous radome; The corrosion electrochemistry test macro is connected by wire with described plug connector formula electrode system, described porous radome be installed in withstand voltage watertight electronic compartment an end, with plug connector formula electrode system cover on the inside.
Wherein: described withstand voltage watertight electronic compartment comprises cylindrical shell, reinforced blind flange and umbilical cable interface, cylindrical shell is the inner hollow structure, the shell flange at cylindrical shell two ends is sealedly connected with respectively reinforced blind flange, be provided with guide rail in inner barrel, described corrosion electrochemistry test macro is installed on this guide rail; Described plug connector formula electrode system and porous radome are installed respectively at one end the reinforced blind flange, and described umbilical cable interface is installed on the reinforced blind flange of the other end; Described corrosion electrochemistry test macro comprises backup direct supply, industrial computer and potentiostat, and this direct supply, industrial computer and potentiostat are installed in respectively on the described guide rail, connect by wire each other; Be connected by wire respectively between described direct supply and the umbilical cable interface, between industrial computer and the umbilical cable interface and between potentiostat and the socket connector type electrode system; The axial cross section of described cylindrical shell is " worker " font, and inside is offered through hole vertically, and described guide rail is arranged on the inside of cylindrical shell vertically; The two ends of described cylindrical shell are shell flange, and the part between two shell flanges is right cylinder; The end face of the shell flange at described cylindrical shell two ends and endoporus are tightly connected by O RunddichtringO and reinforced blind flange respectively; The reinforced blind flange of the described other end is provided with suspension ring; Described plug connector formula electrode system comprises changeable type working electrode, two auxiliary electrode and two contrast electrode, wherein the changeable type working electrode is positioned at the center of the reinforced blind flange of a described end, and described pair of auxiliary electrode and two contrast electrode are circumferentially uniform around this changeable type working electrode; Described porous radome is installed on the reinforced blind flange of a described end, and the edge circumferentially is evenly equipped with a plurality of holes on the cover wall of this porous radome;
Advantage of the present utility model and good effect are:
The utility model can be carried out original position under the deep-marine-environment, detect operation in real time, fast, and it is strong to have high pressure resistant, water-impervious, anticorrosion, antijamming capability; The characteristics such as volume is little, intensity is high, insulation and good seal performance.
Description of drawings
Fig. 1 is the structural representation of the utility model proving installation;
Fig. 2 is the A-A cut-open view among Fig. 1;
Fig. 3 is the control flow chart of the utility model method of testing;
Wherein: 11 is cylindrical shell, and 12 is guide rail, and 13 is an O RunddichtringO, 14 is reinforced blind flange, and 15 is the umbilical cable interface, and 16 is suspension ring, 17 is the 2nd O RunddichtringO, and 21 is direct supply, and 22 is industrial computer, 23 is potentiostat, 31 is the changeable type working electrode, and 32 is two auxiliary electrodes, and 33 is two contrast electrodes, 41 is the porous radome, and 42 is the hole.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1 and Figure 2, the utility model comprises withstand voltage watertight electronic compartment, corrosion electrochemistry test macro, plug connector formula electrode system and porous radome 41, wherein the corrosion electrochemistry test macro is positioned at withstand voltage watertight electronic compartment, plug connector formula electrode system is integrated in the outside of withstand voltage watertight electronic compartment one end, the corrosion electrochemistry test macro is connected by wire with plug connector formula electrode system, described porous radome 41 be installed in withstand voltage watertight electronic compartment an end, with plug connector formula electrode system cover on the inside.
Withstand voltage watertight electronic compartment comprises cylindrical shell 11, umbilical cable interface 15 and reinforced blind flange 14, and its middle cylinder body 11 is the inner hollow structure, and the axial cross section of cylindrical shell 11 is " worker " font, and inside is offered through hole vertically; The two ends of cylindrical shell 11 are shell flange, and the part between two shell flanges is right cylinder.The shell flange at cylindrical shell 11 two ends is sealedly connected with respectively reinforced blind flange 14, realize the double-layer seal of axial and circumferential between cylindrical shell 11 two ends and the reinforced blind flange 14, be on the end face of shell flange at cylindrical shell 11 two ends and offer respectively the groove of standard on the reinforced blind flange 14, put into an O RunddichtringO 13 in the groove on the shell flange end face, put into the 2nd O RunddichtringO 17 in the groove on the reinforced blind flange 14, then use 4～6 bolts that cylindrical shell 11 and reinforced blind flange 14 is fastening, can realize that end face and the endoporus of the shell flange at cylindrical shell 11 two ends passes through first, two O RunddichtringOs 13,17 with the axial and circumferential double-layer seal of reinforced blind flange 14.Cylindrical shell 11 and reinforced blind flange 14 can adopt 16MnR material material through explained hereafter such as turning, solderings, its middle cylinder body 11 can be welded by steel tube profile and standard long-neck W.N flange, the epoxy zinc rich primer that external coating epoxy zinc-enriched paint (can adopt AkzoNobe l(Akzo Nobel) company produces), guarantee machining precision and welding, coating quality.
All have threaded hole on the reinforced blind flange 14 at cylindrical shell 11 two ends, size determines according to the assembling needs, is through hole for the underwater electrical connector that plug connector formula electrode system is installed, the threaded hole of umbilical cable interface 15 wherein.In order to keep good sealing, use O type circle to make gasket seal.
Be provided with guide rail 12 in cylindrical shell 11 inside, the corrosion electrochemistry test macro is installed on this guide rail 12; Plug connector formula electrode system and porous radome 41 assemble respectively at one end the reinforced blind flange 14, and umbilical cable interface 15, suspension ring 16 are installed on the reinforced blind flange 14 of the other end.The corrosion electrochemistry test macro comprises direct supply 21, industrial computer 22, by potentiostat 23 and three kinds of virtual instrument softwares such as open circuit potential monitor, electrokinetic potential scanner and frequency response analyzer of industrial computer 22 controls, this direct supply 21, industrial computer 22 and potentiostat 23 are installed in respectively on the guide rail 12 in the cylindrical shell 11, connect by wire each other; Between direct supply 21 and the umbilical cable interface 15, between industrial computer 22 and the umbilical cable interface 15, be connected by wire respectively between potentiostat 23 and the socket connector type electrode system, to realize the transmission of electric power and signal data.Three kinds of virtual instrument softwares such as open circuit potential monitor, electrokinetic potential scanner and frequency response analyzer can be based on LabVIEW instrument development platform development, can import industrial computer after debugging successfully, and carry out corresponding test.Before lower water test, the connectivity reply each several part of tackling each parts checks debugging fully.
The utility model is powered by the umbilical cable of ROV, when interrupting appears in the ROV power supply, will enable the backup direct supply to satisfy the needs of instrument test; Three kinds of virtual instruments such as open circuit potential monitor, electrokinetic potential scanner and frequency response analyzer are based on virtual instrument development platform and data acquisition hardware member, are integrated in the portable potentiostat, accept the control of industrial computer; The built-in command of industrial computer can preset, and can also accept outside real-time control through umbilical cable.
Plug connector formula electrode system comprises changeable type working electrode 31, two auxiliary electrode 32 and two contrast electrode 33, wherein changeable type working electrode 31 is positioned at the center of the reinforced blind flange 14 of a described end, and two auxiliary electrodes 32 and two contrast electrode 33 are circumferentially uniform around this changeable type working electrode 31.Plug connector formula electrode system can be connected on the corrosion electrochemistry test macro of body inside, cabin by the reinforced blind flange of watertight socket in withstand voltage watertight electronic compartment, corrodes the detection operation.To consist of open protected type electrolytic cell, both can limit the current leakage of electrode system at the outside porous radome of installing of electrode system, what can guarantee again electrode system and seawater fully contacts opening and the shielding of realization electrolytic cell.Plug connector formula electrode system directly contacts with deep-marine-environment; corrosion electrochemistry test macro by withstand voltage watertight electronic compartment inside carries out on-line testing; the reaction kinetics information that original position is obtained and specified the waters, specifies the main oceanographic engineering material in depth of water place; and the on-the-spot seawater quality parameter (parameters such as temperature, salinity, dissolved oxygen DO, pH, oxidation-reduction potential) of the material corrosion process that affects that records with the upper integrated multi-parameter water quality probe of underwater robot (ROV) is interrelated, grasps corrosion behavior and the mechanism of material.
On the reinforced blind flange 14 that porous radome 41 is installed at one end, the edge circumferentially is evenly equipped with a plurality of holes 42 on the cover wall of this porous radome 41, to realize opening; Porous radome 41 is made by Teflon or duplex stainless steel 2205 application bituminous epoxy paint.
The utility model is installed on the ROV with the multi-parameter water quality probe, accept the work boat power supply and receive work order by umbilical cable, can test the marine corrosion characteristic of different waters, the watertight electronic compartment does not need dismounting during work, only need change working electrode according to requirement of experiment, the different depth water layer that then is put into the target marine site with ROV cloth gets final product.
Principle of work of the present utility model is:
Withstand voltage watertight electronic compartment and multi-parameter water quality probe are respectively installed on the underwater robot; The umbilical cable two ends respectively with the reinforced blind flange 14 of withstand voltage watertight electronic compartment one end on umbilical cable interface 15 and power supply power interface, the communication interface watertight of underwater robot be connected; In advance underwater robot is carried out operating depth and set, prefabricated replaceable electrode is installed on the working electrode socket, set multi-parameter water quality and pop one's head in cut-in time; Water under the underwater robot, make horizontal maneuver after arriving the predefined depth of water, by the ADCP(ADCP advanced data communication protocol of self) device measures the flow velocity of displacement speed and seawater, and real-time storage data, underwater robot carries out electro-chemical test by umbilical cable triggering corrosion electrochemistry test macro simultaneously, affects the on-the-spot seawater quality parameter (parameters such as temperature, salinity, dissolved oxygen DO, pH, oxidation-reduction potential) of material corrosion process by multi-parameter water quality probe real-time testing; The measuring process of the water quality parameter of on-the-spot seawater is prior art.After electro-chemical test is finished, send instruction by industrial computer 22 to underwater robot, underwater robot returns.Underwater robot is reclaimed, by the umbilical cable interface of the communication interface of underwater robot, withstand voltage watertight electronic compartment, the umbilical cable interface of multi-parameter water quality probe test data is imported on the computer respectively, control experiment data analysis working electrode is in the corrosion mechanism of specifying depth of water place; Working electrode is provided for simple replacement of, can carry out new round test after underwater robot, withstand voltage watertight electronic compartment, multi-parameter water quality probe are set.
After receiving the triggering corrosion electrochemistry test signal of underwater robot, the job order of electro-chemical test system is: 1) industrial computer 22 will at first check the connectedness of contrast electrode in the withstand voltage watertight electronic compartment, if connectedness well polarizes in advance to working electrode, otherwise test finishes; 2) open circuit potential of monitoring electrode is until open circuit potential is stable; 3) utilize the open circuit potential that records, carry out ac impedance measurement: the sweep limit of setting the AC sine wave pumping signal is 100000～0.01Hz, amplitude 5～10mV, and 5～10 points of every frequency multiplication test are preserved test data; 4) step is monitored open circuit potential again, until open circuit potential is stable; 5) carry out the polarization curve test: setting the electric potential scanning scope is that electric potential scanning speed is 0.1～1mV/s with respect to open circuit potential ± (50～250) mV, preserves test data; 6) after test finished, industrial computer sent return signal by umbilical cable to underwater robot.
Claims (8)
1. the on-the-spot corrosion electrochemical test system in deep-sea is characterized in that: comprise
Withstand voltage watertight electronic compartment,
Be positioned at the corrosion electrochemistry test macro of described withstand voltage watertight electronic compartment,
Be integrated in the plug connector formula electrode system of described withstand voltage watertight electronic compartment one end outside,
Porous radome (41);
Wherein the corrosion electrochemistry test macro is connected by wire with described plug connector formula electrode system, described porous radome (41) be installed in withstand voltage watertight electronic compartment an end, with plug connector formula electrode system cover on the inside.
2. by the on-the-spot corrosion electrochemical test system in deep-sea claimed in claim 1, it is characterized in that: described withstand voltage watertight electronic compartment comprises cylindrical shell (11), reinforced blind flange (14) and umbilical cable interface (15), its middle cylinder body (11) is the inner hollow structure, the shell flange at cylindrical shell two ends is sealedly connected with respectively reinforced blind flange (14), be provided with guide rail (12) in cylindrical shell (11) inside, described corrosion electrochemistry test macro is installed on this guide rail (12); Described plug connector formula electrode system and porous radome (41) are installed respectively at one end the reinforced blind flange (14), and described umbilical cable interface (15) is installed on the reinforced blind flange (14) of the other end.
3. by the on-the-spot corrosion electrochemical test system in deep-sea claimed in claim 2, it is characterized in that: described corrosion electrochemistry test macro comprises backup direct supply (21), industrial computer (22) and potentiostat (23), this direct supply (21), industrial computer (22) and potentiostat (23) are installed in respectively on the described guide rail (12), connect by wire each other; Be connected by wire respectively between described direct supply (21) and the umbilical cable interface (15), between industrial computer (22) and the umbilical cable interface (15) and between potentiostat (23) and the socket connector type electrode system.
4. by the on-the-spot corrosion electrochemical test system in deep-sea claimed in claim 2, it is characterized in that: the axial cross section of described cylindrical shell (11) is " worker " font, inside is offered through hole vertically, and described guide rail (12) is arranged on the inside of cylindrical shell (11) vertically; The two ends of described cylindrical shell (11) are shell flange, and the part between two shell flanges is right cylinder.
5. by the on-the-spot corrosion electrochemical test system in deep-sea claimed in claim 2, it is characterized in that: the end face of the shell flange at described cylindrical shell (11) two ends and endoporus are tightly connected by O RunddichtringO and reinforced blind flange (14) respectively.
6. by the on-the-spot corrosion electrochemical test system in deep-sea claimed in claim 2, it is characterized in that: the reinforced blind flange (14) of the described other end is provided with suspension ring (16).
7. by the on-the-spot corrosion electrochemical test system in deep-sea claimed in claim 2, it is characterized in that: described plug connector formula electrode system comprises changeable type working electrode (31), two auxiliary electrode (32) and two contrast electrode (33), wherein changeable type working electrode (31) is positioned at the center of the reinforced blind flange of a described end (14), and described pair of auxiliary electrode (32) and two contrast electrode (33) are circumferentially uniform around this changeable type working electrode (31).
8. by the on-the-spot corrosion electrochemical test system in deep-sea claimed in claim 2, it is characterized in that: described porous radome (41) is installed on the reinforced blind flange of a described end (14), and the edge circumferentially is evenly equipped with a plurality of holes (42) on the cover wall of this porous radome (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220516519 CN202886245U (en) | 2012-10-09 | 2012-10-09 | Deep-sea field erosion electrochemical testing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220516519 CN202886245U (en) | 2012-10-09 | 2012-10-09 | Deep-sea field erosion electrochemical testing device |
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| CN202886245U true CN202886245U (en) | 2013-04-17 |
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| CN 201220516519 Expired - Lifetime CN202886245U (en) | 2012-10-09 | 2012-10-09 | Deep-sea field erosion electrochemical testing device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103712907A (en) * | 2012-10-09 | 2014-04-09 | 中国石油大学(华东) | Deep-sea field erosion electrochemical testing device and testing method thereof |
| CN104458561A (en) * | 2014-12-02 | 2015-03-25 | 武汉科思特仪器有限公司 | Compound probe, device and method for monitoring corrosion of down-hole string on line and in real time |
| CN108132292A (en) * | 2017-10-26 | 2018-06-08 | 中国船舶重工集团公司第七二五研究所 | Can remote data transmission deep sea in-situ electrochemical testing device and implementation method |
| CN108956444A (en) * | 2018-06-14 | 2018-12-07 | 中国船舶重工集团公司第七二五研究所 | A kind of corrosion-inhibiting coating Natural Environmental Test and performance detecting system |
| CN109444236A (en) * | 2018-10-29 | 2019-03-08 | 中国船舶重工集团公司第七二五研究所 | A kind of pipeline erosion corrosion and electrochemical testing device |
| CN110988063A (en) * | 2019-11-27 | 2020-04-10 | 中国科学院金属研究所 | Electrochemical test electrode system for realizing deep-sea high-pressure high-flow-rate aqueous solution system |
| CN117147427A (en) * | 2023-10-26 | 2023-12-01 | 鲁东大学 | Sample suitable for electrochemical test in deep sea experiment and packaging method thereof |
-
2012
- 2012-10-09 CN CN 201220516519 patent/CN202886245U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103712907A (en) * | 2012-10-09 | 2014-04-09 | 中国石油大学(华东) | Deep-sea field erosion electrochemical testing device and testing method thereof |
| CN103712907B (en) * | 2012-10-09 | 2016-03-02 | 中国石油大学(华东) | The on-the-spot corrosion electrochemical test system in a kind of deep-sea and method of testing thereof |
| CN104458561A (en) * | 2014-12-02 | 2015-03-25 | 武汉科思特仪器有限公司 | Compound probe, device and method for monitoring corrosion of down-hole string on line and in real time |
| CN104458561B (en) * | 2014-12-02 | 2017-07-18 | 武汉科思特仪器股份有限公司 | Corrode the device and method of on-line real time monitoring for down-hole string |
| CN108132292A (en) * | 2017-10-26 | 2018-06-08 | 中国船舶重工集团公司第七二五研究所 | Can remote data transmission deep sea in-situ electrochemical testing device and implementation method |
| CN108132292B (en) * | 2017-10-26 | 2021-09-10 | 中国船舶重工集团公司第七二五研究所 | Deep sea in-situ electrochemical testing device capable of realizing remote data transmission and implementation method |
| CN108956444A (en) * | 2018-06-14 | 2018-12-07 | 中国船舶重工集团公司第七二五研究所 | A kind of corrosion-inhibiting coating Natural Environmental Test and performance detecting system |
| CN108956444B (en) * | 2018-06-14 | 2020-10-09 | 中国船舶重工集团公司第七二五研究所 | Anticorrosive coating natural environment test and performance detection system |
| CN109444236A (en) * | 2018-10-29 | 2019-03-08 | 中国船舶重工集团公司第七二五研究所 | A kind of pipeline erosion corrosion and electrochemical testing device |
| CN109444236B (en) * | 2018-10-29 | 2020-11-27 | 中国船舶重工集团公司第七二五研究所 | Pipeline erosion corrosion and electrochemistry testing arrangement |
| CN110988063A (en) * | 2019-11-27 | 2020-04-10 | 中国科学院金属研究所 | Electrochemical test electrode system for realizing deep-sea high-pressure high-flow-rate aqueous solution system |
| CN117147427A (en) * | 2023-10-26 | 2023-12-01 | 鲁东大学 | Sample suitable for electrochemical test in deep sea experiment and packaging method thereof |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130417 Effective date of abandoning: 20160302 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |