CN109540718A - A kind of experimental rig of dry seed - Google Patents
A kind of experimental rig of dry seed Download PDFInfo
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- CN109540718A CN109540718A CN201811467272.7A CN201811467272A CN109540718A CN 109540718 A CN109540718 A CN 109540718A CN 201811467272 A CN201811467272 A CN 201811467272A CN 109540718 A CN109540718 A CN 109540718A
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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
- G01N3/56—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
- 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
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0044—Pneumatic means
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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
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0222—Temperature
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Abstract
The invention discloses a kind of experimental rigs of dry seed, including are set in cylinder jacket, the heater heated for the inner wall to cylinder jacket；Heating unit connected to the water tank, for promoting the temperature of cooling water in water tank when the temperature for detecting cooling water in water tank is lower than the first preset threshold；Temperature reducing unit connected to the water tank, for reducing the temperature of cooling water in water tank when the temperature for detecting cooling water in water tank is higher than the second preset threshold.The temperature that the present invention can be automatically performed cooling water is adjusted, the monitoring of testing crew is not needed, cost of human resources is greatly reduced, the problem of the inaccuracy of test result caused by human error is avoided simultaneously, and the present invention can heat the inner wall of cylinder jacket, to simulate, cylinder jacket wall temperature is poor, further improves the accuracy of test result.
Description
Technical field
The present invention relates to dry seed field, specially a kind of experimental rig of dry seed.
Background technique
Dry seed is due to entering air in jacket-cooling system, in the bubble explosion pair that cylinder-barrel surface is formed
The corrosiveness that cylinder outer wall generates makes cylinder jacket wall form point dress or needle-shaped aperture, cylinder jacket wall can be penetrated when serious, is made
Coolant liquid enters in cylinder, leads to engine failure and accident occurs.Researcher dry seed test by way of come
The principle of dry seed is studied, and how to avoid the occurrence of or slow down dry seed.
Existing dry seed experimental rig is being stored as shown in Figure 1, using the visual body 10 being connected to catch basin 1
Thermoregulator 2 is set in sink 1；Inlet temperature table is provided on pipeline between visual 10 input end of body and catch basin 1
8；Outlet temperature table 13 is provided on pipeline between visual body outlet end and catch basin 1.Existing dry seed test
Device needs testing crew persistently to monitor the out temperature of visual body 10, then carries out to the thermoregulator 2 in catch basin 1
It manually adjusts, to guarantee that the cooling water temperature for flowing through visual body 10 tallies with the actual situation, this has resulted in biggish human resources
Cost, and dry seed test takes a long time, it is easy to there is testing crew and fail to adjust cooling water temperature in time, causes to try
Test the situation of result inaccuracy.In addition, fuel oil can generate high temperature in combustion chambers burn in the actual moving process of engine,
Cylinder jacket is influenced by combustion chamber high temperature, and inner and outer wall has temperature difference, and existing dry seed experimental rig cannot
Simulation this case causes test result inaccurate.
Summary of the invention
The present invention provides a kind of experimental rig of dry seed, can solve in the prior art due to needing to adjust manually
Section cooling water temperature and without temperature difference analog functuion cause cost of human resources is higher, dry seed test result not
Accurate problem.
In order to achieve the above objectives, the present invention provides the following technical scheme that
A kind of experimental rig of dry seed, comprising:
Cylinder jacket；
It is set in the cylinder jacket, the heater heated for the inner wall to the cylinder jacket；
The cylinder body tooling of the cylinder jacket is wrapped up, there is the cooling water contacted with the cylinder jacket in the cylinder body tooling,
The water outlet of container for reacting as cavitation pitting, the cylinder body tooling is connected by the first pipeline with the water inlet of water tank, institute
The water inlet for stating cylinder body tooling is connected by the second pipeline with the water outlet of the water tank, and by described in first pipe pump driving
Cooling water forms cooling water circulation；
The high-frequency vibrating table being connected with the cylinder body tooling, the mechanical oscillation for simulated engine；
The heating unit being connected with the water tank, for being lower than the first default threshold in the temperature for detecting cooling water in water tank
When value, the temperature of cooling water in water tank is promoted；
The temperature reducing unit being connected with the water tank, for being higher than the second default threshold in the temperature for detecting cooling water in water tank
When value, the temperature of cooling water in water tank is reduced.
Optionally, the heating unit, comprising:
Whether the low-temperature sensor being set in the water tank, the temperature for detecting cooling water in the water tank are lower than
One preset threshold, and when the temperature for detecting cooling water in the water tank is lower than the first preset threshold, the is sent to temperature controller
One signal；
The electrical bar being set in the water tank, for being heated to the cooling water in the water tank；
The first A.C. contactor being connected with the electrical bar, for the closure when receiving first control signal, for institute
Electrical bar power supply is stated, heats the electrical bar to the cooling water in the water tank；
The institute that first input end is connected with the low-temperature sensor, the first output end is connected with first A.C. contactor
Temperature controller is stated, for sending the first control signal to first A.C. contactor when receiving first signal.
Optionally, the temperature reducing unit, comprising:
Whether the pyrostat being set in the water tank, the temperature for detecting cooling water in the water tank are higher than
Two preset thresholds, and when the temperature for detecting cooling water in the water tank is higher than the second preset threshold, the is sent to temperature controller
Binary signal；
The circulating water line being connected with the water tank, the circulating water pipe road are provided with second pipe pump and radiator,
For then conveying in recovery tank after being introduced into the cooling water in the water tank and cooling down in circulating water line；
The second A.C. contactor for being connected is pumped with the second pipe, for the closure when receiving second control signal,
It pumps and powers for the first pipe, make the first pipe pump operating；
The institute that second input terminal is connected with the pyrostat, second output terminal is connected with second A.C. contactor
Temperature controller is stated, for sending the second control signal to second A.C. contactor when receiving the second signal.
Optionally, the heating unit, further includes:
One end is connected with power supply, the first fuse that the other end is connected with the first A.C. contactor, in the heating
It fuses when electric current is excessive in unit, protects the heating unit.
Optionally, the temperature reducing unit, further includes:
One end is connected with power supply, the second fuse that the other end is connected with the second A.C. contactor, in the cooling
It fuses when electric current is excessive in unit, protects the temperature reducing unit.
Optionally, it is provided with the first regulating valve on first pipeline, for adjusting the cooling water flow in the first pipeline.
Optionally, it is provided with first pressure gauge on first pipeline, for monitoring the water pressure of cooling water in the first pipeline.
Optionally, it is provided with the second regulating valve on second pipeline, for adjusting the cooling water flow in the second pipeline.
Optionally, it is provided with second pressure gauge on second pipeline, for monitoring the water pressure of cooling water in the second pipeline.
Optionally, the experimental rig, further includes:
The air compressor machine being connected with second pipeline, for injecting air into the cooling water.
As can be seen from the above technical solutions, the invention discloses a kind of experimental rigs of dry seed, including it is set to
In cylinder jacket, the heater that is heated for the inner wall to cylinder jacket；Heating unit connected to the water tank, for detecting
When the temperature of cooling water is lower than the first preset threshold in water tank, the temperature of cooling water in water tank is promoted；Cooling connected to the water tank
Unit, for reducing the temperature of cooling water in water tank when the temperature for detecting cooling water in water tank is higher than the second preset threshold.
The temperature that the present invention can be automatically performed cooling water is adjusted, and does not need the monitoring of testing crew, cost of human resources is greatly reduced,
The problem of the inaccuracy of test result caused by human error is avoided simultaneously, and the present invention can carry out the inner wall of cylinder jacket
Heating, to simulate, cylinder jacket wall temperature is poor, further improves the accuracy of test result.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the schematic diagram of the experimental rig of dry seed in the prior art；
Fig. 2 is a kind of schematic diagram of the experimental rig of dry seed disclosed by the embodiments of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The present invention provides a kind of experimental rig of dry seed, can solve in the prior art due to needing to adjust manually
Section cooling water temperature and without temperature difference analog functuion cause cost of human resources is higher, dry seed test result not
Accurate problem.
As shown in Figure 1, the embodiment of the invention discloses a kind of experimental rigs of dry seed, comprising:
Cylinder jacket 18；
It is set in the cylinder jacket 18, the heater 17 heated for the inner wall to the cylinder jacket；
It should be noted that heater 17 heats inner wall, it can be with cavitation pitting when real simulation engine actual motion
The environmental condition of reaction keeps test result more accurate.
The cylinder body tooling 19 of the cylinder jacket is wrapped up, the cylinder body tooling 19 is interior cold with contacting with the cylinder jacket 18
But water, the container for reacting as cavitation pitting, the water outlet of the cylinder body tooling 19 pass through the water inlet of the first pipeline and water tank 3
It is connected, the water inlet of the cylinder body tooling 19 is connected by the second pipeline with the water outlet of the water tank 3, and passes through first pipe
The 21 driving cooling water of pump forms cooling water circulation；
It should be noted that the first pipe pump 21 is typically mounted on the second pipeline, the first pipe can also be installed to
On the road, the optional way of the present embodiment is belonged to, here without limitation.
The high-frequency vibrating table 20 being connected with the cylinder body tooling 19, the mechanical oscillation for simulated engine；
It should be noted that one of the environmental condition when mechanical oscillation of engine are also the reaction of true cavitation pitting.
The heating unit 22 being connected with the water tank 3, for pre- lower than first in the temperature for detecting cooling water in water tank 3
If when threshold value, promoting the temperature of cooling water in water tank 3；
The temperature reducing unit 23 being connected with the water tank 3, it is pre- for being higher than second in the temperature for detecting cooling water in water tank 3
If when threshold value, reducing the temperature of cooling water in water tank 3.
It should be noted that by the cooperative cooperating of heating unit 22 and temperature reducing unit 23, it can be in adjust automatically water tank 3
The temperature of cooling water guarantees that the cooling water temperature in water tank 3 maintains within the scope of the required temperature of cavitation pitting test, it is ensured that test knot
The accuracy of fruit.
In addition, first preset threshold and second preset threshold can be according to test demand sets itselfs, here
It does not require.
Specifically, the process of dry seed test is as follows:
Starting heating unit 22 and temperature reducing unit 23 first, due to heating unit 22 and the adjustment of 23 cooperative cooperating of temperature reducing unit
The water temperature of cooling water in water tank 3, therefore heating unit 22 and temperature reducing unit 23 can be regarded as a unit, such as temperature is adjusted
Unit, so two units start together, and because cooling when the temperature of cooling water is necessarily lower than engine operation at the beginning
The temperature of water, i.e. the first preset threshold, so detecting that the cooling water temperature in water tank 3 is lower than after heating unit 22 is opened
First preset threshold starts the temperature for promoting cooling water in water tank 3, needed for the cooling water temperature in water tank 3 meets test
When temperature, heating unit 22 stops working.
Heater 17 is opened while starting heats up unit 22, cylinder liner internal wall is heated, when being heated to test
When required temperature, stops heating, keep the temperature.
Start high-frequency vibrating table 20, cylinder body tooling 19 and cylinder jacket 18 is made to be in vibrational state.
Start first pipe pump 21, the cooling water of temperature needed for test being met in water tank 3 is input to cylinder body tooling 19
In, the cooling water in cylinder body tooling 19 is gradually warmed up, and is generated cavitation pitting with cylinder jacket 18 and is reacted, at this point, original in cylinder body tooling 19
Cooling water flow back into water tank 3, decline the cooler-water temperature in water tank 3, if the cooler-water temperature in water tank 3 be lower than first
Preset threshold, the then unit 22 that heats up are started to work, and the cooling water temperature in water tank 3 is promoted the temperature to needed for meeting test.
Since cooling water can flow through the cylinder jacket 18 in heated condition, flowed back into after heat exchange cold in water tank 3
But water can be such that the cooling water temperature in water tank 3 gradually rises, when the temperature of cooling water in water tank 3 reaches the second preset threshold,
Temperature reducing unit 23 start to work, by the cooling water temperature in water tank be reduced to meet test needed for temperature, so circulation until
Off-test.
Optionally, the heating unit 22, comprising:
Whether the low-temperature sensor 6 being set in the water tank 3, the temperature for detecting cooling water in the water tank 3 are low
In the first preset threshold, and when the temperature for detecting cooling water in the water tank 3 is lower than the first preset threshold, to temperature controller 9
Send the first signal；
The electrical bar 4 being set in the water tank 3, for being heated to the cooling water in the water tank 3；
The first A.C. contactor 2 being connected with the electrical bar 4 is for the closure when receiving first control signal
The electrical bar 4 is powered, and heats the electrical bar 4 to the cooling water in the water tank 3；
First input end is connected with the low-temperature sensor 6, the first output end is connected with first A.C. contactor 2
The temperature controller 9, for sending first control signal to first A.C. contactor 2 when receiving first signal.
Optionally, the temperature reducing unit 23, comprising:
Whether the pyrostat 5 being set in the water tank 3, the temperature for detecting cooling water in the water tank 3 are high
In the second preset threshold, and when the temperature for detecting cooling water in the water tank 3 is higher than the second preset threshold, to temperature controller 9
Send second signal；
The circulating water line being connected with the water tank 3, the circulating water pipe road are provided with second pipe pump 7 and radiator
8, for then conveying in recovery tank 3 after being introduced into the cooling water in the water tank 3 and cooling down in circulating water line；
The second A.C. contactor 10 being connected with second pipe pump 7, for being closed when receiving second control signal
It closes, for 7 power supply of first pipe pump, makes 7 operating of first pipe pump；
Second input terminal is connected with the pyrostat 5, second output terminal is connected with second A.C. contactor 10
The temperature controller 9, for when receiving the second signal to second A.C. contactor 10 send it is described second control
Signal processed.
It should be noted that heat up in the present embodiment unit 22 and the shared temperature controller 9 of temperature reducing unit 23, but in this hair
In bright another embodiment, heating unit 22 and temperature reducing unit 23 respectively use an individual temperature controller.
In addition, by the content of above-mentioned heating unit 22 and temperature reducing unit 23 it is found that single by heating unit 22 and cooling
The cooperative cooperating of member 23 can guarantee that the cooling water temperature in water tank 3 maintains with the temperature of cooling water in adjust automatically water tank 3
Within the scope of temperature needed for cavitation pitting test, it is ensured that the accuracy of test result.
The optional heating unit 22, further includes:
One end is connected with power supply, the first fuse 1 that the other end is connected with the first A.C. contactor 2, in the liter
It fuses when electric current is excessive in warm unit 22, protects the heating unit 22.
Optionally, the temperature reducing unit 23, further includes:
One end is connected with power supply, the second fuse 11 that the other end is connected with the second A.C. contactor 10, for described
It fuses when electric current is excessive in temperature reducing unit 23, protects the temperature reducing unit 23.
Optionally, it is provided with the first regulating valve 15 on first pipeline, for adjusting the cooling water flow in the first pipeline
Amount.
Optionally, it is provided with first pressure gauge 16 on first pipeline, for monitoring the cooling water water in the first pipeline
Pressure.
Optionally, it is provided with the second regulating valve 13 on second pipeline, for adjusting the cooling water flow in the second pipeline
Amount.
Optionally, it is provided with second pressure gauge 14 on second pipeline, for monitoring the cooling water water in the second pipeline
Pressure.
It should be noted that the hydraulic pressure and water flow mentioned in above content can need voluntarily to be adjusted according to test
It is whole.
Optionally, the experimental rig, further includes:
The air compressor machine 12 being connected with second pipeline, for injecting air into the cooling water.
Cavitation pitting reaction is due to the corrosion that explosion generates cylinder outer wall on cylinder jacket wall of the air bubble in cooling water
Effect injects air by air compressor machine in cooling water, increases the bubbles volume in cooling water, so as to improve cavitation pitting test
Speed shortens test period, can obtain test result faster.
Present embodiment discloses a kind of experimental rigs of dry seed, including are set in cylinder jacket, for cylinder
The heater that the inner wall of set is heated；Heating unit connected to the water tank, in the temperature for detecting cooling water in water tank
When lower than the first preset threshold, the temperature of cooling water in water tank is promoted；Temperature reducing unit connected to the water tank, for detecting water
When the temperature of cooling water is higher than the second preset threshold in case, the temperature of cooling water in water tank is reduced.The present invention can be automatically performed
The temperature of cooling water is adjusted, and is not needed the monitoring of testing crew, cost of human resources is greatly reduced, while avoiding human error
Caused by test result inaccuracy problem, and the present invention can heat the inner wall of cylinder jacket, to simulate cylinder
Jacket wall temperature difference further improves the accuracy of test result.
It should also be noted that, the terms "include", "comprise" or its any other variant are intended to nonexcludability
It include so that the process, method, commodity or the equipment that include a series of elements not only include those elements, but also to wrap
Include other elements that are not explicitly listed, or further include for this process, method, commodity or equipment intrinsic want
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including element
There is also other identical elements in process, method, commodity or equipment.
It will be understood by those skilled in the art that embodiments herein can provide as method, system or computer program product.
Therefore, complete hardware embodiment, complete software embodiment or embodiment combining software and hardware aspects can be used in the application
Form.It is deposited moreover, the application can be used to can be used in the computer that one or more wherein includes computer usable program code
The shape for the computer program product implemented on storage media (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.)
Formula.
The above is only embodiments herein, are not intended to limit this application.To those skilled in the art,
Various changes and changes are possible in this application.It is all within the spirit and principles of the present application made by any modification, equivalent replacement,
Improve etc., it should be included within the scope of the claims of this application.
Claims (10)
1. a kind of experimental rig of dry seed characterized by comprising
Cylinder jacket；
It is set in the cylinder jacket, the heater heated for the inner wall to the cylinder jacket；
The cylinder body tooling of the cylinder jacket is wrapped up, there is the cooling water contacted with the cylinder jacket in the cylinder body tooling, be used for
As the container of cavitation pitting reaction, the water outlet of the cylinder body tooling is connected by the first pipeline with the water inlet of water tank, the cylinder
The water inlet of body tooling is connected by the second pipeline with the water outlet of the water tank, and drives the cooling by first pipe pump
Water forms cooling water circulation；
The high-frequency vibrating table being connected with the cylinder body tooling, the mechanical oscillation for simulated engine；
The heating unit being connected with the water tank, for being lower than the first preset threshold in the temperature for detecting cooling water in water tank
When, promote the temperature of cooling water in water tank；
The temperature reducing unit being connected with the water tank, for being higher than the second preset threshold in the temperature for detecting cooling water in water tank
When, reduce the temperature of cooling water in water tank.
2. experimental rig according to claim 1, which is characterized in that the heating unit, comprising:
The low-temperature sensor being set in the water tank, it is pre- whether the temperature for detecting cooling water in the water tank is lower than first
If threshold value, and when the temperature for detecting cooling water in the water tank is lower than the first preset threshold, the first letter is sent to temperature controller
Number；
The electrical bar being set in the water tank, for being heated to the cooling water in the water tank；
The first A.C. contactor being connected with the electrical bar is the electricity for the closure when receiving first control signal
Hot pin power supply, heats the electrical bar to the cooling water in the water tank；
The temperature that first input end is connected with the low-temperature sensor, the first output end is connected with first A.C. contactor
Device is controlled, for sending the first control signal to first A.C. contactor when receiving first signal.
3. experimental rig according to claim 1, which is characterized in that the temperature reducing unit, comprising:
The pyrostat being set in the water tank, it is pre- whether the temperature for detecting cooling water in the water tank is higher than second
If threshold value, and when the temperature for detecting cooling water in the water tank is higher than the second preset threshold, the second letter is sent to temperature controller
Number；
The circulating water line being connected with the water tank, the circulating water pipe road are provided with second pipe pump and radiator, are used for
Cooling water in the water tank is introduced into after cooling down in circulating water line, then conveyed in recovery tank；
The second A.C. contactor being connected is pumped with the second pipe, for the closure when receiving second control signal, for institute
First pipe pump power supply is stated, the first pipe pump operating is made；
The temperature that second input terminal is connected with the pyrostat, second output terminal is connected with second A.C. contactor
Device is controlled, for sending the second control signal to second A.C. contactor when receiving the second signal.
4. experimental rig according to claim 2, which is characterized in that the heating unit, further includes:
One end is connected with power supply, the first fuse that the other end is connected with the first A.C. contactor, in the heating unit
Middle electric current fuses when excessive, protects the heating unit.
5. experimental rig according to claim 3, which is characterized in that the temperature reducing unit, further includes:
One end is connected with power supply, the second fuse that the other end is connected with the second A.C. contactor, in the temperature reducing unit
Middle electric current fuses when excessive, protects the temperature reducing unit.
6. experimental rig according to claim 1, which is characterized in that it is provided with the first regulating valve on first pipeline,
For adjusting the cooling water flow in the first pipeline.
7. experimental rig according to claim 1, which is characterized in that it is provided with first pressure gauge on first pipeline,
For monitoring the water pressure of cooling water in the first pipeline.
8. experimental rig according to claim 1, which is characterized in that it is provided with the second regulating valve on second pipeline,
For adjusting the cooling water flow in the second pipeline.
9. experimental rig according to claim 1, which is characterized in that it is provided with second pressure gauge on second pipeline,
For monitoring the water pressure of cooling water in the second pipeline.
10. experimental rig according to claim 1, which is characterized in that further include:
The air compressor machine being connected with second pipeline, for injecting air into the cooling water.
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| CN201811467272.7A CN109540718A (en) | 2018-12-03 | 2018-12-03 | A kind of experimental rig of dry seed |
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| CN201811467272.7A CN109540718A (en) | 2018-12-03 | 2018-12-03 | A kind of experimental rig of dry seed |
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| CN110887756A (en) * | 2019-11-11 | 2020-03-17 | 太原理工大学 | Cylinder sleeve cavitation erosion simulation test and observation device |
| CN112082928A (en) * | 2020-09-11 | 2020-12-15 | 上海康恒环境股份有限公司 | High-temperature corrosion detection system for flue gas of waste incinerator |
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| CN112082928A (en) * | 2020-09-11 | 2020-12-15 | 上海康恒环境股份有限公司 | High-temperature corrosion detection system for flue gas of waste incinerator |
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