CN104568631A - Gas-solid two-phase erosion wear testing device - Google Patents
Gas-solid two-phase erosion wear testing device Download PDFInfo
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- CN104568631A CN104568631A CN201510031096.2A CN201510031096A CN104568631A CN 104568631 A CN104568631 A CN 104568631A CN 201510031096 A CN201510031096 A CN 201510031096A CN 104568631 A CN104568631 A CN 104568631A
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Abstract
The invention discloses a gas-solid two-phase erosion wear testing device. A first compressor is connected with a combustion chamber by virtue of a pressure stabilization tank and a dryer; a fuel nozzle and an ignition device are arranged on the combustion chamber; a feeder and a second compressor are connected to a particle mixer; one path of high-temperature gas generated by the combustion chamber passes through a needle valve and an auxiliary heating pipe and then are connected to one inlet of an organic glass test section; another path of the high-temperature gas generated by the combustion chamber and the particle outlet of the particle mixer are connected into the other inlet of the test section by virtue of a two-phase acceleration device; gas-solid two-phase particles in the test section are sprayed to a target material; a thermocouple and a separator are connected with the test section; the separator is communicated with the atmosphere; a CCD camera is aligned with the target material in the test section; and the motion condition of spraying the gas-solid two-phase onto the target material is observed and recorded by using a PIV testing technology and a computer. According to the device disclosed by the invention, the impact rebound rule of spraying the micron-level particles onto the target material and the deformation and corrosion conditions on the target material can be researched.
Description
Technical field
The present invention relates to erosion abrasion test device, especially relate to a kind of gas-particle two-phase erosion abrasion test device.
Background technology
A large amount of Dual-Phrase Distribution of Gas olid kinety systems is there is at engineering fields such as iron and steel, machinery and petrochemical industry, as two-phase turbomachine, Geldart-D particle and dust arrester etc. because the solid grain speed in air-flow is very large, and often depart from streamline, so can produce erosive wear to wall, impact is normally produced and brings accident potential to be therefore necessary to study the erosion of wall behavior of such current system.
Usually two kinds of methods can be adopted to alleviate erosion of wall: one is improve the resistance to abrasion of wall surface material, the coated with wear resistant material or carry out modification etc. to wall as used high-abrasive material, on wall.Two is according to theory of gas-solid two-phase, changes the condition in nearly wall flow field by changing wall configuration, thus the speed of the solid grain of impact and track, finally alleviate the wearing and tearing of solid grain to wall, if angle of attack, speed etc. are on the impact of wearing and tearing.
When the Dual-Phrase Distribution of Gas olid of laboratory simulation high temperature and high speed is tested, due to system complex, parts mainly with and Dual-Phrase Distribution of Gas olid transfer conduit long, need preheating and the stable time long, test run cost is very high, therefore have developed a kind of high temperature and high speed gas-particle two-phase erosion abrasion test device.It is by compressor gas supplied station (i.e. cold air source) and combustion system (i.e. high temperature source of the gas), solid particle charging system, test section and exhaust system.Wherein source of the gas and combustion system, charging system and exhaust system are public parts, change test section to different tests research object.
Summary of the invention
For problem existing in above-mentioned background technology, the object of the present invention is to provide a kind of gas-particle two-phase erosion abrasion test device.
The technical solution adopted for the present invention to solve the technical problems is:
First compressor of the present invention is through buffer tank, exsiccator is connected with firing chamber, first compressor outlet connects tensimeter, fuel nozzle and portfire are arranged on firing chamber, all receive on granule mixer with the second compressor after feeder is connected with balance, one tunnel of the high-temperature gas that firing chamber produces is through needle-valve, an import of organic glass test section is accessed after auxiliary heating pipe, another road of high-temperature gas that firing chamber produces and the outlet of granule mixer particle access another import of organic glass test section after two-phase accelerator, gas-particle two-phase particle swarm in organic glass test section is with predetermined speed v, get on target material that setting angle is α, organic glass test section is connected to thermocouple and separation vessel respectively, separation vessel communicates with air through valve, outside organic glass test section, CCD camera is housed, CCD camera aims at the target material in organic glass test section, CCD camera is connected with computing machine, adopt PIV measuring technology, CCD camera and computing machine carry out observational record gas-particle two-phase and get to motion conditions on target.
The setting angle α of described target material is 30
o~ 90
o, best angle is 30
o, 45
o, 60
o, 70
o, 75
o, 80
o, 85
o, 90
o.
Described granule mixer is have the dissimilar laval jet pipe of contraction, convergent-divergent or expanding.
The useful effect that the present invention has is:
Organic glass test section of the present invention is made up of thermostable organic glass, gas-particle two-phase get on the target material in test section with predetermined speed, angle.Available PIV measuring technology, CCD camera and computing machine carry out observational record gas-particle two-phase and get to motion conditions on target.Thus research micron particles gets to impacting rebound rule on target material and to the distortion of target material and corrosion condition.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is impacting rebound schematic diagram.
In Fig. 1: 1, the first compressor, 2, tensimeter, 3, buffer tank, 4, exsiccator, 5, firing chamber, 6, portfire, 7, granule mixer; 8, the second compressor; 9, feeder, 10, electronic balance, 11, hot coupling, 12, micron particles group, 13, target material, 14, separation vessel, 15, organic glass test section, 16, computing machine, 17, CCD camera, 18, two additrons, 19, auxiliary heating pipe, 20, needle-valve, 21, fuel nozzle, 22, particle swarm incident direction, 23, particle swarm reflection direction.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
As Fig. 1, shown in Fig. 2, structure of the present invention is: the first compressor 1 is through buffer tank 3, exsiccator 4 is connected with firing chamber 5, first compressor 1 outlet connects tensimeter 2, fuel nozzle 21 and portfire 6 are arranged on firing chamber 5, all receive on granule mixer 7 with the second compressor 8 after feeder 9 is connected with balance 10, one tunnel of the high-temperature gas that firing chamber produces is through needle-valve 20, an import of access organic glass test section 15 after auxiliary heating pipe 19, another road of high-temperature gas that firing chamber 5 produces and the outlet of granule mixer 7 particle access another import of organic glass test section 15 after two-phase accelerator 18, gas-particle two-phase particle swarm 12 in organic glass test section 15 is with predetermined speed v, get on target material 13 that setting angle is α, organic glass test section 15 is connected to respectively thermocouple 11 and separation vessel 14, separation vessel 14 communicates with air through valve, CCD camera 17 is housed outside organic glass test section 15, CCD camera 17 aims at the target material 13 in organic glass test section 15, CCD camera 17 is connected with computing machine 16, adopt PIV measuring technology, CCD camera 17 and computing machine 16 carry out observational record gas-particle two-phase and get to motion conditions on target 13.
The setting angle α of described target material 13 is 30
o~ 90
o, best angle is 30
o, 45
o, 60
o, 70
o, 75
o, 80
o, 85
o, 90
o.
Described granule mixer 7 is for having the dissimilar laval jet pipe of contraction, convergent-divergent or expanding.
principle of work of the present invention:
Air compressor 1 provides pressurized air, the air-flow stablizing air pressure is formed in buffer tank 3, pass through exsiccator 4 again by the moisture absorption in gas, gas enters into firing chamber 5 under the igniting of portfire 6, lights after the fuel sprayed fully mixes with fuel nozzle 21.The high-temperature gas G1 produced after burning.A high-temperature gas G1 part is used for driving particle swarm, and a part enters into test section 15 after heating, is used for adjusting the temperature in test section.
It is m that balance 10 weighs quality
0micron order sic particle powder; add in granule mixer 7 by feeder 9; after the pressure gas provided with compressor 8 fully mixes, enter into two additrons 18 under the driving of high-temperature gas G1, making particle swarm obtain speed v, temperature is the condition of T.
Gas-particle two-phase to be got to for α with predetermined speed v, setting angle on the target material 13 in test section.Available PIV measuring technology, CCD camera 17 and computing machine 16 carry out observational record gas-particle two-phase and get to motion conditions on target 13, thus research micron particles gets to impacting rebound rule on target material and to the distortion of target material and corrosion condition.Wherein test section is made up of thermostable organic glass.Test section is equipped with hot coupling, is used for measuring the temperature of test section.
The gas-particle two-phase of test section enters into separation vessel, and after solids particles precipitate, gas discharges air.
variable element:
(1) speed v: the speed of two-phase is regulated by two additrons 18, two additrons are dissimilar laval nozzle: scaling type, expanding, shrinkage type.Particle swarm speed can be accelerated to subsonic speed, transonic speed and supersonic speed by Laval jet pipe.
(2) temperature T: the temperature of two-phase can be controlled by the type of fuel in firing chamber, additional heating section.The wherein temperature of hot coupling 11 monitoring and test section 15.
(3) pressure P: the pressure of two-phase is controlled by compressor.
(4) load ratio μ: load ratio μ is the ratio of the sic particle of added sic granular mass and 10g.Balance 10 is used for controlling to load the size than μ.
(5) target material: the target material that different materials can be changed.Target material, for being subject to test specimen, can be alloy or nonmetallic materials.
the present invention can study following content:
Research micron particles gets to impacting rebound rule on target material and to the distortion of target material and corrosion condition.
(1) impacting rebound rule: the particle swarm of research different-grain diameter gets to the relation of incident angle α, reflection angle β and variable element on target (13), and as shown in Figure 2,22 is particle swarm incident direction; 23 is particle swarm reflection direction.
(2) gas-particle two-phase is to the erosion of target material: after the impact of Dual-Phrase Distribution of Gas olid to target material that speed is v, temperature is T continues regular hour t, takes out material.Measure the mass loss Δ m of target material, weight-loss ratio ε can be obtained.ε=Δm/(v.t)。The relation of research weight-loss ratio ε and each variable element.
Claims (3)
1. a gas-particle two-phase erosion abrasion test device, it is characterized in that: the first compressor (1) is through buffer tank (3), exsiccator (4) is connected with firing chamber (5), first compressor (1) outlet connects tensimeter (2), fuel nozzle (21) and portfire (6) are arranged on firing chamber (5), all receive on granule mixer (7) with the second compressor (8) after feeder (9) is connected with balance (10), one tunnel of the high-temperature gas that firing chamber produces is through needle-valve (20), auxiliary heating pipe (19) accesses an import of organic glass test section (15) afterwards, another road of the high-temperature gas that firing chamber (5) produces and the outlet of granule mixer (7) particle access another import of organic glass test section (15) after two-phase accelerator (18), gas-particle two-phase particle swarm (12) in organic glass test section (15) is with predetermined speed v, get on target material (13) that setting angle is α, organic glass test section (15) is connected to respectively thermocouple (11) and separation vessel (14), separation vessel (14) communicates with air through valve, CCD camera (17) is housed outside organic glass test section (15), CCD camera (17) aims at the target material (13) in organic glass test section (15), CCD camera (17) is connected with computing machine (16), adopt PIV measuring technology, CCD camera (17) and computing machine (16) carry out observational record gas-particle two-phase and get to motion conditions on target (13).
2. a kind of gas-particle two-phase erosion abrasion test device according to claim 1, is characterized in that: the setting angle α of described target material (13) is 30
o~ 90
o, best angle is 30
o, 45
o, 60
o, 70
o, 75
o, 80
o, 85
o, 90
o.
3. a kind of gas-particle two-phase erosion abrasion test device according to claim 1, is characterized in that: described granule mixer (7) is for having the dissimilar laval jet pipe of contraction, convergent-divergent or expanding.
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| CN201510031096.2A CN104568631A (en) | 2015-01-21 | 2015-01-21 | Gas-solid two-phase erosion wear testing device |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105181571A (en) * | 2015-10-23 | 2015-12-23 | 河南省锅炉压力容器安全检测研究院 | High-temperature corrosion testing device capable of coupling erosion corrosion and gas corrosion |
| CN105258919A (en) * | 2015-11-24 | 2016-01-20 | 浙江工业大学 | Multi-size mixed gas-solid two-phase flow experimental device |
| CN105628531A (en) * | 2015-12-30 | 2016-06-01 | 浙江理工大学 | Continuous type high-temperature and high-speed gas-solid two-phase flow erosion abrasion test device |
| CN106018143A (en) * | 2016-05-11 | 2016-10-12 | 浙江理工大学 | Design method for visualization pipeline flowing wear testing device |
| CN106226031A (en) * | 2016-09-11 | 2016-12-14 | 浙江理工大学 | The experimental provision of particle-wall collision experiment in resisting medium |
| CN106950128A (en) * | 2017-03-20 | 2017-07-14 | 清华大学 | A kind of online dynamic ablation measurement apparatus and its measuring method for applying shock loading |
| CN108680451A (en) * | 2018-07-25 | 2018-10-19 | 浙江理工大学 | High temperature and high speed gas-solid abrasion test device |
| CN109142025A (en) * | 2017-06-27 | 2019-01-04 | 南京理工大学 | A kind of high temperature and pressure contains solid multiphase Particle Erosion abrasion test device |
| CN109406566A (en) * | 2018-07-27 | 2019-03-01 | 西安交通大学 | Nano-fluid impact jet flow fluid interchange characteristic and Erosive Properties experimental provision |
| CN109900577A (en) * | 2019-03-21 | 2019-06-18 | 湘潭大学 | A kind of detection method of thermal barrier coating high temperature erosion |
| CN109975148A (en) * | 2019-01-15 | 2019-07-05 | 中信戴卡股份有限公司 | A kind of automatic sand erosion device |
| CN110160902A (en) * | 2019-05-06 | 2019-08-23 | 浙江理工大学 | Detachable loop-type gas-liquid-solid erosive wear combined test device |
| CN110823514A (en) * | 2019-11-27 | 2020-02-21 | 中国人民解放军国防科技大学 | High-enthalpy gas-solid two-phase transverse jet flow and supersonic velocity air flow coupling effect generating device and measuring system |
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Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105181571B (en) * | 2015-10-23 | 2018-03-30 | 河南省锅炉压力容器安全检测研究院 | A kind of erosion corrosion and the high temperature corrosion experimental rig of gas attack coupling |
| CN105181571A (en) * | 2015-10-23 | 2015-12-23 | 河南省锅炉压力容器安全检测研究院 | High-temperature corrosion testing device capable of coupling erosion corrosion and gas corrosion |
| CN105258919A (en) * | 2015-11-24 | 2016-01-20 | 浙江工业大学 | Multi-size mixed gas-solid two-phase flow experimental device |
| CN105628531A (en) * | 2015-12-30 | 2016-06-01 | 浙江理工大学 | Continuous type high-temperature and high-speed gas-solid two-phase flow erosion abrasion test device |
| CN105628531B (en) * | 2015-12-30 | 2018-07-31 | 浙江理工大学 | Continuous high-temperature high speed Dual-Phrase Distribution of Gas olid erosion abrasion test device |
| CN106018143A (en) * | 2016-05-11 | 2016-10-12 | 浙江理工大学 | Design method for visualization pipeline flowing wear testing device |
| CN106018143B (en) * | 2016-05-11 | 2018-06-15 | 浙江理工大学 | A kind of visualization pipeline flowing abrasion experiment device design method |
| CN106226031A (en) * | 2016-09-11 | 2016-12-14 | 浙江理工大学 | The experimental provision of particle-wall collision experiment in resisting medium |
| CN106226031B (en) * | 2016-09-11 | 2024-01-23 | 浙江理工大学 | Experimental device for be used for granule in viscous medium and wall collision experiment |
| CN106950128B (en) * | 2017-03-20 | 2019-07-05 | 清华大学 | A kind of online dynamic ablation measuring device and its measurement method for applying shock loading |
| CN106950128A (en) * | 2017-03-20 | 2017-07-14 | 清华大学 | A kind of online dynamic ablation measurement apparatus and its measuring method for applying shock loading |
| CN109142025A (en) * | 2017-06-27 | 2019-01-04 | 南京理工大学 | A kind of high temperature and pressure contains solid multiphase Particle Erosion abrasion test device |
| CN108680451B (en) * | 2018-07-25 | 2023-11-17 | 浙江理工大学 | High-temperature high-speed gas-solid abrasion test device |
| CN108680451A (en) * | 2018-07-25 | 2018-10-19 | 浙江理工大学 | High temperature and high speed gas-solid abrasion test device |
| CN109406566A (en) * | 2018-07-27 | 2019-03-01 | 西安交通大学 | Nano-fluid impact jet flow fluid interchange characteristic and Erosive Properties experimental provision |
| CN109975148A (en) * | 2019-01-15 | 2019-07-05 | 中信戴卡股份有限公司 | A kind of automatic sand erosion device |
| CN109975148B (en) * | 2019-01-15 | 2024-01-26 | 中信戴卡股份有限公司 | Automatic sand grain wearing and tearing device |
| CN109900577A (en) * | 2019-03-21 | 2019-06-18 | 湘潭大学 | A kind of detection method of thermal barrier coating high temperature erosion |
| CN110160902A (en) * | 2019-05-06 | 2019-08-23 | 浙江理工大学 | Detachable loop-type gas-liquid-solid erosive wear combined test device |
| CN110160902B (en) * | 2019-05-06 | 2024-04-12 | 浙江理工大学 | Detachable annular gas-liquid-solid erosive wear combined test device |
| CN110823514A (en) * | 2019-11-27 | 2020-02-21 | 中国人民解放军国防科技大学 | High-enthalpy gas-solid two-phase transverse jet flow and supersonic velocity air flow coupling effect generating device and measuring system |
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