CN109975153A - A kind of injecting type stress-erosion corrosion test device - Google Patents
A kind of injecting type stress-erosion corrosion test device Download PDFInfo
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- CN109975153A CN109975153A CN201910302950.2A CN201910302950A CN109975153A CN 109975153 A CN109975153 A CN 109975153A CN 201910302950 A CN201910302950 A CN 201910302950A CN 109975153 A CN109975153 A CN 109975153A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/20—Investigating strength properties of solid materials by application of mechanical stress by applying steady bending forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/56—Investigating resistance to wear or abrasion
- G01N3/567—Investigating resistance to wear or abrasion by submitting the specimen to the action of a fluid or of a fluidised material, e.g. cavitation, jet abrasion
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0023—Bending
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/023—Pressure
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
Abstract
The present invention relates to a kind of injecting type stress-erosion corrosion test devices, including the installation of liquid reserve tank, the circulatory system, test specimen and stress loading mechanism, which is characterized in that the heater that liquid reserve tank is provided with, to be heated to the testing liquid in case；The circulatory system is furnished with water pump, air pump and air and liquid mixer, water pump is the testing liquid in case to be pumped in air and liquid mixer, air pump is connected to air and liquid mixer, air and liquid mixer is connected by pipeline with nozzle, it is provided with sand reservoir box on the pipeline of spray nozzle front end, the granule content of pipeline is entered by regulating valve control；The upstream of sand reservoir box installation place is provided with to measure the temperature of transmission medium and the temperature sensor of flow and flowmeter from air and liquid mixer input channel, adjustment heater power is read according to temperature sensor, controls water pump, air pump revolving speed according to meter readings to control jet velocity.The present invention can carry out the evaluation study of metal material, nonmetallic materials, stress-erosion corrosion performance test, the corrosion mechanism etc. for meeting material, proof stress erosion corrosion coating etc..
Description
Technical field
The present invention relates to erosion-corrosion experiment fields, more particularly, to a kind of consideration stress, corrosion gas-liquid collective effect
Injecting type erosion-corrosion experiment device.
Technical background
Erosion corrosion is prevalent in the industries such as petroleum, chemical industry, ship.The metal parts contacted with corrosive media is normal
By serious two phase flow or the erosive-corrosive wear of multiphase flow, component failure or equipment scrapping may cause.
Erosion corrosion is a sufficiently complex process, influences many because being known as of corrosion rate, including material factor, ring
Border factor and mechanics factor etc..Deep water structure, while may be by the operating condition usually in the state that meets with stresses
The erosion corrosion of a variety of corrosive mediums such as water containing the sea of sand, high temperature crude oil, wherein influence of the stress factors to its erosion corrosion can not
Ignore, stress-erosion corrosion experimental study need to be carried out.
Compared with rotary, fluid-guiding type, injecting type erosion corrosion test device acts on sample using nozzle ejecting fluid
On, can the accurate parameters such as coutroi velocity and the angle of attack, and experimental cost is low, experimental period is shorter.But existing injecting type washes away
Corrosion testing apparatus fails to consider the influence of stress, is unable to complete stress-erosion corrosion test.
Summary of the invention
It is an object of the invention to solve the deficiency of above-mentioned background technique, installs additional and answer on the basis of existing spraying equipment
Power load maintainer provides a kind of experimental rig of stress-erosion corrosion.
A kind of injecting type stress-erosion corrosion test device, including the installation of liquid reserve tank, the circulatory system, test specimen and stress add
Mounted mechanism, which is characterized in that the heater that liquid reserve tank is provided with, to be heated to the testing liquid in case；The circulatory system
Equipped with water pump, air pump and air and liquid mixer, water pump is the testing liquid in case to be pumped in air and liquid mixer, air pump connection
To air and liquid mixer, air and liquid mixer is connected by pipeline with nozzle, is provided with sand reservoir box on the pipeline of spray nozzle front end, is led to
Overregulate the granule content that valve control enters pipeline；The upstream of sand reservoir box installation place is provided with defeated from air and liquid mixer to measure
Enter the temperature of the transmission medium of pipeline and the temperature sensor of flow and flowmeter, adjustment heater is read according to temperature sensor
Power controls water pump, air pump revolving speed according to meter readings to control jet velocity.
Preferably, nozzle is fixed on nozzle holder by knob, and nozzle holder upper end is a circular arc, by adjusting nozzle
Angle is washed away to change in position.Temperature sensor, electronic flowmeter, water pump, air pump, heater, hydraulic cylinder, four-point bending examination
Machine is tested to connect with computer.Test specimen back low-temperature circulating sink can adjust specimen test temperature, to simulate low temperature environment.Test specimen
Lower section solid has particle accumulator tank and strainer, filters and is added in liquid reserve tank will complete the liquid after washing away, to realize liquid
Body circulation.It is connected between hydraulic cylinder pull rod and piece fixture by rotational structure, piece fixture is provided with locating channel, it is ensured that
Test specimen axle center is not inclined in place.
The present invention is directed to establish the indoor laboratory experimental rig and method of a kind of stress-erosion corrosion, metal can be carried out
Material, nonmetallic materials, the stress-erosion corrosion performance test, corrosion mechanism for meeting material, proof stress erosion corrosion coating etc.
Deng evaluation study.
Detailed description of the invention
Fig. 1 is stress erosion corrosion test device schematic diagram of the present invention
Appended drawing reference is as follows: 1-liquid reserve tank；2-insulating layers；3-heaters；4-water pumps；5-the circulatory systems；6-gas
Pump；7-air and liquid mixers；8-temperature sensors；9-electronic flowmeters；10-sand reservoir boxes；11-sand grains；12-regulating valves；
13-nozzle holders；14-nozzles；15-knobs；16-hydraulic cylinders；17-locating channels；18-piece fixtures；19-is anti-
Splash cover；20-four-point bending test machines；21-low-temperature circulating sinks；22-solid particle accumulator tanks；23-strainers；24-solids
Particle accumulator tank sewage pipe；25-flexible pipes；26-liquid storage box covers；
Specific embodiment
With reference to the accompanying drawing, a specific embodiment of the invention is described further:
As shown in Figure 1, the device includes liquid storage cabinet, the circulatory system, test specimen installation and stress loading mechanism.Liquid reserve tank 1
Equipped with cabinet insulation layer 2, liquid storage box cover 26 and heater 3, the temperature that testing liquid can be heated, and pass through spray nozzle front end
Spend reading adjustment 3 power of heater of sensor 8；The circulatory system 5 includes water pump 4, air pump 6 and air and liquid mixer 7, and liquid can be used
Body, gas or gas-liquid mixture are as transmission medium, according to electronic flowmeter 9 reading the control water pump 4,6 turns of air pump of spray nozzle front end
Speed is to control jet velocity；Sand reservoir box 10 is arranged in spray nozzle front end, and the granule content of medium can be controlled by regulating valve 12；Test specimen
Installation and stress loading mechanism include four-point bending test machine 20 and hydraulic cylinder 16, to realize tension and compression stress independent loads,
Moment of flexure load and combination loading, are connected between 16 pull rod of hydraulic cylinder and piece fixture 18 by rotational structure, test specimen can
It is rotated around vertical pivot, ensures that the axle center of piece fixture 18 is not inclined in place by locating channel 17；Test specimen back is provided with low temperature and follows
Ring sink 21, to adjust specimen test temperature, to simulate low temperature environment；There is splash guard 19 outside test specimen, prevents injection liquid
It splashes out, lower section solid particle accumulator tank 22, strainer 23 will complete the liquid after washing away and filter and be added in liquid reserve tank 1, to realize
Liquid circulation.
Nozzle 14 is connect with the circulatory system 5 by flexible pipe 25 in the present invention, and nozzle 14 can be fixed on spray by knob 15
On mouth bracket 13,13 upper end of nozzle holder is a circular arc, washes away angle by adjusting nozzle location to change.
In the present invention, temperature sensor 8, electronic flowmeter 9, water pump 4, air pump 6, heater 3,16, four points of hydraulic cylinder
Apparatus for Bending at low-temp 20 is connect with computer.
1. testing preparation
To test specimen according to relevant regulatory requirements polishing grinding to specified finish, if being related to resistance to stress-erosion corrosion coating
Research, then be test specimen seal coat；Prepare the suitable sand grains 11 such as shape, scale, hardness according to test requirements document, and uniformly by it
It is fitted into sand reservoir box 10；The etchant solution or corrosivity suspension of enough test requirements documents are configured, liquid reserve tank 1 is cleaned and will be corroded
Solution (suspension) adds at liquid reserve tank suitable level line；According to test requirements document by H2S, CO2, O2Equal gas cylinders are connected into air pump
6。
2. test parameters is adjusted
By the fixed test specimen of fixture 18, around vertical pivot rolling clamp 18 to proper angle and four-point bending test machine 20 is arranged；
Position of the angle adjustment nozzle 14 on nozzle holder 13 is washed away according to test requirements document, and fixed by knob 15；It opens and adds
Hot device 3 preheats corrosive liquid, and starts low-temperature circulating sink 21；Pass through hydraulic cylinder 16 and four-point bending test machine 20
Preset stress loading is applied to test specimen；Water pump 4, air pump 6 are successively opened, is read according to current flow meter 9 and adjusts water pump 4, air pump 6
Revolving speed adjusts 3 power of heater by temperature sensor 8 to maintain test preset flow to maintain test preset temperature；It adjusts
Whole regulating valve 12 changes granule content to test and presets, and washes away corruption to the target sample material progress preset duration in experimental section
Erosion.
3. testing final finishing work
Successively close regulating valve 12, air pump 6, water pump 4, heater 3, low-temperature circulating sink 21, control hydraulic cylinder 16 with
Four-point bending test machine 20 unloads stress；Sample taking-up is continued into the research such as weighing, microexamination；Mixing liquid is carried out
Processing, cleans erosion experiment apparatus at solid particle recycling, avoids damage of the residual corrosive liquid to experimental rig as far as possible.
Claims (6)
1. a kind of injecting type stress-erosion corrosion test device, including the installation of liquid reserve tank, the circulatory system, test specimen and stress loading
Mechanism, which is characterized in that the heater that liquid reserve tank is provided with, to be heated to the testing liquid in case；The circulatory system is matched
There are water pump, air pump and air and liquid mixer, the testing liquid in case to be pumped in air and liquid mixer, air pump is connected to water pump
Air and liquid mixer, air and liquid mixer are connected by pipeline with nozzle, are provided with sand reservoir box on the pipeline of spray nozzle front end, are passed through
Regulating valve control enters the granule content of pipeline；The upstream of sand reservoir box installation place is provided with to be inputted to measure from air and liquid mixer
The temperature of the transmission medium of pipeline and the temperature sensor of flow and flowmeter read adjustment heater function according to temperature sensor
Rate controls water pump, air pump revolving speed according to meter readings to control jet velocity.
2. searching the device of book according to claim 1, which is characterized in that nozzle is fixed on nozzle holder by knob, nozzle branch
Frame upper end is a circular arc, washes away angle by adjusting nozzle location to change.
3. searching the device of book according to claim 1, which is characterized in that temperature sensor, electronic flowmeter, water pump, air pump, heating
Device, hydraulic cylinder, four-point bending test machine are connect with computer.
4. searching the device of book according to claim 1, which is characterized in that test specimen back low-temperature circulating sink can adjust specimen test temperature
Degree, to simulate low temperature environment.
5. searching the device of book according to claim 1, which is characterized in that solid has particle accumulator tank and strainer below test specimen, to
It will complete the liquid after washing away to filter and be added in liquid reserve tank, to realize liquid circulation.
6. searching the device of book according to claim 1, it is characterised in that test specimen is installed and stress loading mechanism includes four-point bending examination
Machine and hydraulic cylinder are tested, is connected between hydraulic cylinder pull rod and piece fixture by rotational structure, piece fixture is provided with positioning
Guide groove, it is ensured that test specimen axle center is not inclined in place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910302950.2A CN109975153A (en) | 2019-04-16 | 2019-04-16 | A kind of injecting type stress-erosion corrosion test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910302950.2A CN109975153A (en) | 2019-04-16 | 2019-04-16 | A kind of injecting type stress-erosion corrosion test device |
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| CN109975153A true CN109975153A (en) | 2019-07-05 |
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| CN201910302950.2A Pending CN109975153A (en) | 2019-04-16 | 2019-04-16 | A kind of injecting type stress-erosion corrosion test device |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110455561A (en) * | 2019-07-31 | 2019-11-15 | 西南交通大学 | More material output devices and wheel rail high speed contact fatigue tester protective device |
| CN110715848A (en) * | 2019-10-30 | 2020-01-21 | 西南石油大学 | Stress erosion corrosion experimental apparatus |
| CN110749496A (en) * | 2019-12-02 | 2020-02-04 | 大连理工大学 | Singular triaxial test device suitable for structure body and implementation method thereof |
| CN110926987A (en) * | 2019-11-06 | 2020-03-27 | 中交疏浚技术装备国家工程研究中心有限公司 | High-precision test bed for analyzing erosion wear of surface sample |
| CN110987702A (en) * | 2019-12-20 | 2020-04-10 | 常州大学 | Experimental device and test method for simulating geothermal wellbore erosion corrosion under sand-containing condition |
| CN111948341A (en) * | 2020-07-27 | 2020-11-17 | 中国石油大学(北京) | Device and method for testing bubble rising speed under solid-liquid two-phase condition |
| CN112763308A (en) * | 2020-12-29 | 2021-05-07 | 哈尔滨工程大学 | Multi-degree-of-freedom erosion auxiliary system capable of continuously adjusting and monitoring in real time |
| CN113252521A (en) * | 2021-05-08 | 2021-08-13 | 浙江理工大学 | Gas-solid two-phase flow deposition characteristic experimental device with automatic particle size screening function |
| CN113466074A (en) * | 2021-07-15 | 2021-10-01 | 三峡大学 | Water turbine abrasion test equipment and method |
| CN113466118A (en) * | 2021-07-02 | 2021-10-01 | 兰州城市学院 | Corrosion test device for petroleum conveying equipment |
| CN113686762A (en) * | 2021-06-29 | 2021-11-23 | 矿冶科技集团有限公司 | Test box |
| CN113702274A (en) * | 2021-08-31 | 2021-11-26 | 中国石油化工股份有限公司 | Testing equipment and testing method for scouring resistance of coating and application |
| CN113866024A (en) * | 2021-10-25 | 2021-12-31 | 西北工业大学 | Solid-liquid mixture impact resistance test device for material |
| CN114112759A (en) * | 2020-09-01 | 2022-03-01 | 中国石油化工股份有限公司 | Erosion and wear experimental equipment |
| CN114112749A (en) * | 2021-11-24 | 2022-03-01 | 吉林大学 | Material corrosion tensile fatigue test device and method |
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Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110455561A (en) * | 2019-07-31 | 2019-11-15 | 西南交通大学 | More material output devices and wheel rail high speed contact fatigue tester protective device |
| CN110715848A (en) * | 2019-10-30 | 2020-01-21 | 西南石油大学 | Stress erosion corrosion experimental apparatus |
| CN110926987A (en) * | 2019-11-06 | 2020-03-27 | 中交疏浚技术装备国家工程研究中心有限公司 | High-precision test bed for analyzing erosion wear of surface sample |
| CN110926987B (en) * | 2019-11-06 | 2022-05-27 | 中交疏浚技术装备国家工程研究中心有限公司 | High-precision test bed for analyzing erosion wear of surface sample |
| CN110749496A (en) * | 2019-12-02 | 2020-02-04 | 大连理工大学 | Singular triaxial test device suitable for structure body and implementation method thereof |
| CN110749496B (en) * | 2019-12-02 | 2021-04-16 | 大连理工大学 | Singular triaxial test device suitable for structure body and implementation method thereof |
| CN110987702A (en) * | 2019-12-20 | 2020-04-10 | 常州大学 | Experimental device and test method for simulating geothermal wellbore erosion corrosion under sand-containing condition |
| CN110987702B (en) * | 2019-12-20 | 2022-06-17 | 常州大学 | Experimental device and test method for simulating geothermal wellbore erosion corrosion under sand-containing condition |
| CN111948341A (en) * | 2020-07-27 | 2020-11-17 | 中国石油大学(北京) | Device and method for testing bubble rising speed under solid-liquid two-phase condition |
| CN111948341B (en) * | 2020-07-27 | 2021-09-21 | 中国石油大学(北京) | Device and method for testing bubble rising speed under solid-liquid two-phase condition |
| CN114112759A (en) * | 2020-09-01 | 2022-03-01 | 中国石油化工股份有限公司 | Erosion and wear experimental equipment |
| CN112763308A (en) * | 2020-12-29 | 2021-05-07 | 哈尔滨工程大学 | Multi-degree-of-freedom erosion auxiliary system capable of continuously adjusting and monitoring in real time |
| CN112763308B (en) * | 2020-12-29 | 2022-11-25 | 哈尔滨工程大学 | Multi-degree-of-freedom erosion auxiliary system capable of continuously adjusting and monitoring in real time |
| CN113252521A (en) * | 2021-05-08 | 2021-08-13 | 浙江理工大学 | Gas-solid two-phase flow deposition characteristic experimental device with automatic particle size screening function |
| CN113686762A (en) * | 2021-06-29 | 2021-11-23 | 矿冶科技集团有限公司 | Test box |
| CN113466118A (en) * | 2021-07-02 | 2021-10-01 | 兰州城市学院 | Corrosion test device for petroleum conveying equipment |
| CN113466118B (en) * | 2021-07-02 | 2023-04-28 | 兰州城市学院 | Corrosion test device for petroleum conveying equipment |
| CN113466074A (en) * | 2021-07-15 | 2021-10-01 | 三峡大学 | Water turbine abrasion test equipment and method |
| CN113702274A (en) * | 2021-08-31 | 2021-11-26 | 中国石油化工股份有限公司 | Testing equipment and testing method for scouring resistance of coating and application |
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