CN201397279Y - Erosion test device - Google Patents
Erosion test device Download PDFInfo
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- CN201397279Y CN201397279Y CN2009201069475U CN200920106947U CN201397279Y CN 201397279 Y CN201397279 Y CN 201397279Y CN 2009201069475 U CN2009201069475 U CN 2009201069475U CN 200920106947 U CN200920106947 U CN 200920106947U CN 201397279 Y CN201397279 Y CN 201397279Y
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Abstract
The utility model relates to an erosion test device comprising a corrosive liquid tank, a filter, a feed pump, a metering pump, a heating device, a sample chamber and a recovery tank which are connected in series. A valve of the sample chamber is arranged at the inlet of the sample chamber; the outlet of the recovery tank is connected with the inlet of the filter; a condensation device used for cooling the measured liquid to the preset temperature is connected between the sample chamber and the recovery tank; the heating device is connected with the condensation device; and a bypass valve is arranged between the heating device and the condensation device. The erosion test device with the advantages of low cost, long service life, safety and reliability can effectively improve the accuracyof the erosion property test of materials.
Description
Technical field
The utility model relates to a kind of measuring technology of material erosion property, particularly relates to a kind of erosion proving installation of simulating material erosion property under the various environmental baselines.
Background technology
Various commercial units as the equipment in the oilfield chemical industry, usually are operated in the high-temperature high-flow rate environment, its equipment can be subjected to high temperature erosion, if the equipment erosive wear resistance a little less than, damage such as corrosion grade will appear after a period of time in work, equipment can't normally use, and has a strong impact on the serviceable life of equipment.Therefore, before device fabrication, the erosive wear resistance of various materials is tested, become extremely important with the erosive wear resistance that obtains material under the various high temperature and high speed conditions.
At present, obtaining the erosion property of material under the high-temperature high-flow rate condition mainly comprises aspect following two: the one, and investigation or carry out the lacing film experiment in process of production and obtain measurement data in the overhaul of the equipments, this method can effectively obtain the erosion property of material in the real work environment, but, the acquisition time of this measurement data is longer, and can only after the equipment input, obtain, can't satisfy actual needs; The 2nd, rotation obtains measurement data in quiescent conditions or autoclave, and still, this method of testing can't truly reflect the erosion property of material under the high-temperature high-flow rate condition, and test result is inaccurate.Therefore, providing a kind of proving installation preferably, test the erosive wear resistance of various materials under the high-temperature high-flow rate condition, is technical issues that need to address.
At present, CN2458620Y discloses a kind of high-temp high-flow-speed outwash experiment equipment, it is by fluid reservoir, surge tank, filtrator, volume pump, heating furnace, heat interchanger, sample chamber and nitrogen furnace are formed, wherein, the fluid reservoir bottom that links to each other with surge tank is through bleeder valve, filtrator, volume pump and multistage heating furnace are to the sample chamber, between heating furnace, be provided with 2 groups of heat interchanger, the afterbody heating furnace is provided with terminal valve on the one hand and between the sample chamber, on the other hand and be provided with bypass valve between the heat interchanger, the heat interchanger that is connected with bypass valve connect with another heat interchanger the back to fluid reservoir, nitrogen cylinder through the gas displacement valve to heating furnace.This device can be simulated high-temperature high-flow rate condition in the industrial environment, is used for the high-temperature medium erosion test of equipment and materials.
The inventor finds that there is following technological deficiency at least in prior art high-temperature high-flow rate experimental provision in realizing process of the present utility model:
(1) in the whole measuring process, measure liquid and be in the condition of high temperature for a long time, the component of measuring liquid in the long period of experiments easily changes, and can't reflect actual production process, causes measurement result inaccurate;
(2) in the whole measuring process, because measure liquid circular flow under the condition of high temperature always, each parts in the measuring equipment all need to have higher resistance to elevated temperatures, particularly volume pump wherein, because it needs long-time running at high temperature, it needs heat resistance preferably, costs an arm and a leg, therefore, each component costs is too high in the experimental facilities, the experimental facilities costliness, and the high temperature damage easily takes place behind the long-play, the serviceable life of experimental facilities is lower;
(3) in the whole measuring process,, measure liquid and be in the state of being heated always, measure the temperature instability of liquid, can't guarantee to measure the consistance of liquid, make measurement result more inaccurate through the specimen temperature for guaranteeing to measure the temperature of liquid;
(4) in the whole measuring process, measure the light composition volatilization in a large number at high temperature of liquid, and volatilization gas is full of the whole sample chamber, makes that the sample chamber internal pressure is bigger, bring potential safety hazard, be unfavorable for the normal safe operation of experimental facilities to experimental provision.
The utility model content
The purpose of this utility model provides a kind of erosion proving installation, in order to solve the technological deficiency of prior art, can effectively reduce the cost of erosion proving installation, improves the accuracy and the reliability of test.
For achieving the above object, the utility model provides a kind of erosion proving installation, comprises the corrosion flow container, filtrator, feeder pump, volume pump, heating arrangement, sample chamber and the recycling can that are connected in series successively, and described sample chamber inflow point is provided with the sample chamber valve; The outlet of described recycling can is connected with the inlet of described filtrator, also is connected with between described sample chamber and the described recycling can be used to cool off the condensing unit of measurement liquid to preset temperature; Described heating arrangement is connected with described condensing unit, is provided with bypass valve between described heating arrangement and the described condensing unit.
Wherein, described heating arrangement is multistage heating furnace.Described multistage heating furnace is 5 grades of heating furnaces.
Further, described sample chamber also is connected with the gas tank that is used to discharge described sample indoor gas, and described gas tank is arranged between described recycling can and the condensing unit.The top of described sample chamber is provided with safety valve, and described safety valve is connected with described gas tank.
As can be seen from the above technical solutions, the utility model erosion proving installation is by being provided with condensing unit in the closed circuit of measuring liquid, make and have consistent temperature when measuring liquid enters the sample chamber, effectively guarantee the stability of test liquid temperature, improved the accuracy of sample erosion property test; The utility model is measured liquid in the whole circulation loop, except that the one section pipeline that enters the sample chamber, all has lower temperature, make that most of parts are in work under the lower temperature state in the erosion proving installation, effectively improved the resistance to elevated temperatures of erosion proving installation, reduced the buying expenses of each parts of erosion proving installation, be reduced to the cost of whole erosion proving installation, improved the serviceable life of erosion proving installation; In the utility model erosion proving installation, do not need to be in the condition of high temperature owing to measure liquid, therefore, the component of measurement liquid is malleable not, has effectively reflected the actual production process of specimen always, and the erosion property test of sample accurately.Further, the utility model erosion proving installation is by being provided with the gas tank that is used to discharge the sample indoor gas that is connected with the sample chamber, effectively reduced the sample chamber internal pressure of measuring light composition volatilization in the liquid in the test process and causing, effectively guarantee the security performance of erosion proving installation test, can satisfy the test of various material erosion properties.
Description of drawings
Fig. 1 is the structural representation of the utility model erosion proving installation embodiment one;
Fig. 2 carries out the erosion of 20# carbon steel in containing the high temperature oil of naphthenic acid and the result schematic diagram of static immersing corrosion test among the utility model erosion proving installation embodiment;
Fig. 3 is the structural representation of the utility model erosion proving installation embodiment two.
Embodiment
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Fig. 1 is the structural representation of the utility model erosion proving installation embodiment one.As shown in Figure 1, present embodiment erosion proving installation comprises corrosion flow container 1, filtrator 2, feeder pump 3, volume pump 4, heating arrangement 5, sample chamber 6, condensing unit 7 and recycling can 8.Wherein, corrosion flow container 1, filtrator 2, feeder pump 3, volume pump 4, heating arrangement 5, sample chamber 6, condensing unit 7 and recycling can 8 are connected in series successively by the direction of flange according to the outlet that enters the mouth; Described sample chamber 6 inflow points are provided with sample chamber valve 90; The outlet of described recycling can 8 is connected with the inlet of described filtrator 2, forms closed circuit in whole erosion proving installation; Described heating arrangement 5 is connected with described condensing unit 7, is provided with bypass valve 91 between described heating arrangement 5 and the described condensing unit 7, and described condensing unit 7 is used for measuring liquid to preset temperature in the cooling in service of erosion proving installation.
In the practical application, this erosion proving installation also is provided with high-pressure nitrogen bottle 10 and low pressure nitrogen gas cylinder 11, be connected with each associated components in the erosion proving installation respectively, be used to test the sealing property of erosion proving installation and the pressure of parts, before test begins to feed measurement liquid, replace the air in the erosion proving installation simultaneously, and the erosion proving installation also is provided with the exhaust apparatus of discharging nitrogen.High-pressure nitrogen bottle 10, low pressure nitrogen gas cylinder 11 and exhaust apparatus all are connected with parts in the erosion proving installation by the nitrogen valve, when seal, when pressure test and displaced air, can be with the nitrogen valve open that is connected with each parts, close again after finishing, guarantee validity and the security performance of erosion proving installation in test process.Concrete, high-pressure nitrogen bottle 10 can be connected with sample chamber 6, and low pressure nitrogen gas cylinder 11 can be connected with corrosion flow container 1, recycling can 8.
In addition, corrosion flow container 1 side also is provided with additive tank 12, is used for feeding required adjuvant by this additive tank 12, to satisfy the test needs of material under the varying environment condition.
In the practical application, heating arrangement 5 can be for multistage heating furnace, and is concrete, can be 5 grades of heating furnaces, is heated to required temperature will measure liquid.Simultaneously, condensing unit 7 cools off by chilled water measures liquid to preset temperature, this condensing unit 7 can be realized the measurement liquid that enters in the condensing unit 7 is lowered the temperature by the condensate water water inlet and the condensate water water delivering orifice that are provided with, makes through measuring the temperature of a liquid to preset temperature behind the condensing unit 7.
In the practical application, condensing unit 7 can effectively guarantee to cycle through the temperature of recycling can 8, filtrator 2, feeder pump 3 and volume pump 4 in suitable temperature range, as long as satisfying certain heat resistance, recycling can 8, filtrator 2, feeder pump 3 and volume pump 4 can guarantee the permanently effective operation of whole erosion proving installation, effectively improve the serviceable life of erosion proving installation, reduced the cost of erosion proving installation.In addition, by condensing unit 7 is set, make the measurement liquid that enters heating arrangement 5 all guarantee in certain temperature range, make and to guarantee in certain temperature range through the measurement liquid behind the heating arrangement 5, effectively guaranteed the consistance that measures the temperature of a liquid through in the sample chamber 6, guaranteed the accuracy of measurement result, and the temperature of measuring liquid just is in the condition of high temperature in heating arrangement 5 and sample chamber 6 this section pipelines in the whole circulation process, in other follows bad pipeline, measure liquid and be in lower temperature range, measure liquid that can not and liquid component occurs measuring and change and cause measurement result phenomenon accurately because of being in the condition of high temperature for a long time.
For the utility model is had a better understanding, the course of work to the utility model erosion proving installation describes below.
One, in sample chamber 6, install the sample of material to be tested, carry out the erosion test of material, and the sample that material to be tested is placed in 6 bottoms in the sample chamber, carry out static Soak Test.
Two, the high pressure nitrogen valve between unlatching sample chamber 6 and the high-pressure nitrogen bottle 10, and close other valve inlet and inlet in the erosion proving installation.Open high-pressure nitrogen bottle 10, the erosion proving installation is carried out carrying out pressure test before the specimen erosion property, the security performance during with assurance erosion proving installation proper testing.And after pressure test finishes, close the high pressure nitrogen valve, and open the exhaust apparatus that is connected with sample chamber 6.
Three, in corrosion flow container 1, add the measurement liquid of 100L, add the corrosion inhibiter of 10ml, and open the preheating switch of corrosion flow container 1, test(ing) liquid is preheated to uniform temperature in additive tank 12.Open the low-pressure nitrogen valve that is connected with low pressure nitrogen gas cylinder 11, nitrogen injection in the pipeline of erosion proving installation, whole pipelines of assurance erosion proving installation are unimpeded and do not have leakage, and the air in logical continuously nitrogen displacement in the 15 minutes erosion proving installation is closed the low-pressure nitrogen valve then.
Four, sample chamber valve 90 is closed, open bypass valve 91, start feeder pump 3 simultaneously, make the pipeline of erosion proving installation be full of measurement liquid, and open the low-pressure nitrogen valve of low pressure nitrogen gas cylinder 11 once more, logical continuously nitrogen was closed the nitrogen valve in 15 minutes then.
Five, open heating arrangement 5.Make that measuring liquid enters heating arrangement 5 through behind filter 2, feeder pump 3 and the volume pump 4, the measurement liquid through after the heating that comes out from heating arrangement 5 enters condensing unit 7 behind bypass valve 91, after entering recycling can 8, measurement liquid behind the process condensing unit 7 enters filtrator 2, circulation heating reaches the required temperature of specimen for extremely up to it.Wherein condensing unit 7 can be set suitable preset temperature according to the measurement needs of reality, when being higher than preset temperature when measuring the temperature of a liquid it is reduced to preset temperature.According to the measurement needs of reality, can control the flow velocity that enters heating arrangement 5 by volume pump 4, have required flow velocity when guaranteeing to sample test.
Six, measure the temperature of a liquid arrive sample test temperature required after, close bypass valve 91, open sample chamber valve 90, make to have temperature required measurement liquid and enter sample chamber 6.When measurement liquid enters sample chamber 6, impact the sample that is installed in the sample chamber 6 with spray regime, form the environment that washes away of high-temperature high-flow rate, the measurement liquid after spray sample chamber 6 enters condensing unit 7 cooling backs to recycling can 8 from the bottom, and then forms closed circuit after entering filtrator 2.
Seven, measure liquid and after the time, close feeder pump 3 in cycle sets, stop to measure liquid and enter sample chamber 6, test finishes.Take out specimen, the erosion property of the material that corrosion condition acquisition is per sample measured.Simultaneously, also can measure, confirm the corrosion condition of static immersion sample, and can will compare at erosion property that washes away sample under the environment and static immersion sample to the static sample that is placed in the sample chamber 6.
When above-mentioned end of test (EOT), can close heating arrangement 5, sample chamber valve 90 successively, simultaneously, open bypass valve 91, when fluid temperature to be measured drops to the safe temperature value, stop circulation, take out the analysis confirmation that sample is correlated with.In test process, actual working environment according to material, can select suitable measurement liquid and adjuvant, and temperature and the flow velocity of setting measurement liquid when entering sample chamber 6, form identical with actual working environment or similar condition, so that the erosion property of the material that obtains accurately and reliably, for manufacturing and designing of equipment under this actual working environment provides reliable foundation, assurance equipment can satisfy needs of production with material, improves the suitable ability and the serviceable life of equipment.Fig. 2 carries out the erosion of 20# carbon steel in containing the high temperature oil of naphthenic acid and the result schematic diagram of static immersing corrosion test among the utility model erosion proving installation embodiment.As shown in Figure 2, by measuring erosion test and the static Soak Test of 20# carbon steel in containing the high temperature oil of naphthenic acid, can confirm effectively whether the 20# carbon steel is suitable as the manufacturing materials with equipment under or the conditions of similarity identical with this test environment.
As can be seen from the above technical solutions, present embodiment erosion proving installation is by being provided with condensing unit in the closed circuit of measuring liquid, make and have consistent temperature when measuring liquid enters the sample chamber, effectively guarantee the stability of test liquid temperature, improved the accuracy of sample erosion property test; Present embodiment is measured liquid in the whole circulation loop, except that the one section pipeline that enters the sample chamber, all has lower temperature, make that most of parts are in work under the lower temperature state in the erosion proving installation, effectively improved the resistance to elevated temperatures of erosion proving installation, reduced the buying expenses of each parts of erosion proving installation, be reduced to the cost of whole erosion proving installation, improved the serviceable life of erosion proving installation; In the present embodiment erosion proving installation, do not need to be in the condition of high temperature owing to measure liquid, therefore, the component of measurement liquid is malleable not, has effectively reflected the actual production process of specimen always, and the erosion property test of sample accurately.
Fig. 3 is the structural representation of the utility model erosion proving installation embodiment two.On the basis of the foregoing description one technical scheme, sample chamber 6 in the present embodiment erosion proving installation also is connected with a gas tank 13, the gas that is used for the measurement in the sample chamber 6 is evaporated is out discharged, eliminate measuring light composition in the liquid at high temperature volatilizees and causes the excessive potential safety hazard of bringing of pressure in the sample chamber 6, effectively improve the security performance of erosion proving installation, can adapt to the test needs of different measuring liquid simultaneously.
Concrete, present embodiment gas tank 13 is arranged between recycling can 8 and the condensing unit 7, and gas tank 13 is connected with sample chamber 6 by the safety valve that is arranged on 6 tops, sample chamber, has effectively guaranteed security performance and reliability that the erosion proving installation moves.Simultaneously, the top of sample chamber 6 also is provided with tensimeter 14, is used for the size of measuring samples chamber 6 internal gas pressures, but guarantees that the safe operation of erosion proving installation is in reliable pressure limit.
State in realization on the basis of embodiment one technique effect, the present embodiment technical scheme is by being provided with the gas tank that is used to discharge the sample indoor gas that is connected with the sample chamber, effectively reduced the sample chamber internal pressure of measuring light composition volatilization in the liquid in the test process and causing, effectively guarantee the security performance of erosion proving installation test, can satisfy the test of various material erosion properties.
It should be noted that at last: above embodiment is only in order to explanation the technical solution of the utility model but not limit it, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that: it still can make amendment or be equal to replacement the technical solution of the utility model, and these modifications or be equal to replacement and also can not make amended technical scheme break away from the spirit and scope of technical solutions of the utility model.
Claims (6)
1, a kind of erosion proving installation comprises the corrosion flow container, filtrator, feeder pump, volume pump, heating arrangement, sample chamber and the recycling can that are connected in series successively, and described sample chamber inflow point is provided with the sample chamber valve; It is characterized in that the outlet of described recycling can is connected with the inlet of described filtrator, also be connected with between described sample chamber and the described recycling can be used to cool off and measure the condensing unit of liquid to preset temperature; Described heating arrangement is connected with described condensing unit, is provided with bypass valve between described heating arrangement and the described condensing unit.
2, erosion proving installation according to claim 1 is characterized in that, described heating arrangement is multistage heating furnace.
3, erosion proving installation according to claim 2 is characterized in that, described multistage heating furnace is 5 grades of heating furnaces.
4, according to the arbitrary described erosion proving installation of claim 1～3, it is characterized in that described sample chamber also is connected with the gas tank that is used to discharge described sample indoor gas, described gas tank is arranged between described recycling can and the condensing unit.
5, erosion proving installation according to claim 4 is characterized in that, the top of described sample chamber is provided with safety valve, and described safety valve is connected with described gas tank.
6, erosion proving installation according to claim 5 is characterized in that, the top of described sample chamber is connected with tensimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201069475U CN201397279Y (en) | 2009-04-07 | 2009-04-07 | Erosion test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201069475U CN201397279Y (en) | 2009-04-07 | 2009-04-07 | Erosion test device |
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| CN201397279Y true CN201397279Y (en) | 2010-02-03 |
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| CN2009201069475U Expired - Lifetime CN201397279Y (en) | 2009-04-07 | 2009-04-07 | Erosion test device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101846614A (en) * | 2010-05-05 | 2010-09-29 | 杭州富如德科技有限公司 | Temperature and pressure controllable rotary erosion experiment apparatus |
| CN102493767A (en) * | 2011-12-02 | 2012-06-13 | 西南石油大学 | Gas well-drilling erosion experiment method |
-
2009
- 2009-04-07 CN CN2009201069475U patent/CN201397279Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101846614A (en) * | 2010-05-05 | 2010-09-29 | 杭州富如德科技有限公司 | Temperature and pressure controllable rotary erosion experiment apparatus |
| CN102493767A (en) * | 2011-12-02 | 2012-06-13 | 西南石油大学 | Gas well-drilling erosion experiment method |
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Granted publication date: 20100203 |
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