CN217033552U - Multi-channel dynamic corrosion test device - Google Patents
Multi-channel dynamic corrosion test device Download PDFInfo
- Publication number
- CN217033552U CN217033552U CN202220646650.3U CN202220646650U CN217033552U CN 217033552 U CN217033552 U CN 217033552U CN 202220646650 U CN202220646650 U CN 202220646650U CN 217033552 U CN217033552 U CN 217033552U
- Authority
- CN
- China
- Prior art keywords
- test
- pipeline
- water inlet
- flow meter
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The utility model discloses a multichannel dynamic corrosion test device, which comprises a control system, a main water inlet flow meter, a main water outlet flow meter, a plurality of test branches connected in parallel between the main water inlet flow meter and the main water outlet flow meter, a circulating pump and a dispensing pipeline, wherein the test branches are connected in parallel between the main water inlet flow meter and the main water outlet flow meter; the main water inlet flow meter and the main water outlet flow meter are respectively connected with the outlet end of the circulating pump through a first water inlet pipeline and a second water inlet pipeline; one end of the dispensing pipeline is connected with the second water inlet pipeline, and the other end of the dispensing pipeline is connected with the inlet end of the circulating pump; the test branch comprises a test pipeline, a test container arranged on the test pipeline, a test water inlet flowmeter arranged on the test pipeline, a branch regulating valve and a branch stop valve; the main water inlet flow meter, the main water outlet flow meter and the test water inlet flow meter are in communication connection with the control system. The multi-channel dynamic corrosion test device can simulate the influence of the flow velocity on material corrosion in a nuclear power closed cooling water system, realize the control of the multi-channel dynamic flow velocity and greatly improve the test efficiency.
Description
Technical Field
The utility model relates to the technical field of corrosion tests, in particular to a multi-channel dynamic corrosion test device.
Background
Carbon steel and copper materials are mainly used as structural materials of the nuclear power closed cooling water system, corrosion is easy to occur under the operating condition, huge economic loss is caused, a large amount of precious resources and energy are consumed, and the safe operation of a nuclear power station is influenced to a certain extent and cannot be ignored. The common anticorrosion technology at home and abroad is to add a cathode corrosion inhibitor, an anode corrosion inhibitor, a film-forming corrosion inhibitor, a hydrazine deoxidant and a pH control agent, and aims to realize the anticorrosion effect by controlling the water chemistry working condition.
At present, the domestic nuclear power closed cooling water system mostly adopts single phosphate control, the pH is controlled to be between 11.0 and 11.5, and the carbon steel corrosion can be effectively inhibited. However, this pH range is outside the stable pH range of copper (7-11), which is detrimental to the corrosion protection of copper-containing materials in the system. Meanwhile, corrosion products of the copper material can influence the corrosion of the carbon steel material, so that the content of iron, copper and suspended matters exceeds the standard during the operation of the unit. Therefore, the comprehensive research aiming at the compound formula of various chemical additives is the key for realizing the corrosion prevention of the closed cooling water system.
The domestic research level on chemical additive compound formula is in the leading position internationally, and the corrosion prevention research on molybdate, nitrite, chromate and silicate compound formula is carried out successively, but the research is carried out by a conventional static corrosion test device, and the following defects exist: the conventional static corrosion test device cannot realize flow rate control, has low single-group test efficiency and participates in corrosion reaction.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a multi-channel dynamic corrosion test device capable of simulating a nuclear power closed cooling water system.
The technical scheme adopted by the utility model for solving the technical problem is as follows: the multichannel dynamic corrosion test device comprises a control system, a main water inlet flow meter, a main water outlet flow meter, a plurality of test branches connected in parallel between the main water inlet flow meter and the main water outlet flow meter, a circulating pump and a dispensing pipeline for providing test solution for the test branches;
the main water inlet flow meter and the main water outlet flow meter are respectively connected with the outlet end of the circulating pump through a first water inlet pipeline and a second water inlet pipeline; one end of the dispensing pipeline is connected with the second water inlet pipeline, and the other end of the dispensing pipeline is connected with the inlet end of the circulating pump, so that the dispensing pipeline, the circulating pump and the second water inlet pipeline are connected to form a first circulating loop in which the test solution circularly flows, the dispensing pipeline is connected with the test branch through the circulating pump, the first water inlet pipeline and the second water inlet pipeline to form a second circulating loop in which the test solution circularly flows between the dispensing pipeline and the test branch;
each test branch comprises a test pipeline, a test container, a test water inlet flowmeter, a branch regulating valve and a branch stop valve, wherein the test container is arranged on the test pipeline and used for accommodating test materials, and the test water inlet flowmeter, the branch regulating valve and the branch stop valve are arranged on the test pipeline and positioned at the inlet side of the test container;
and the main water inlet flow meter, the main water outlet flow meter and the test water inlet flow meter are all in communication connection with the control system.
Preferably, the test pipelines of the plurality of test branches have different pipe diameters.
Preferably, the test branch further comprises a branch switch valve and a branch check valve which are arranged on the test pipeline and positioned on the outlet side of the test container.
Preferably, the test container comprises a hollow closed container, a bracket which is arranged in the closed container and is used for supporting the test material;
the two opposite sides of the closed container are respectively provided with an inlet and an outlet which are used for connecting the test pipeline; the side of the closed container having the inlet forms the inlet side of the test container and the side having the outlet forms the outlet side of the test container.
Preferably, the outlet end of the circulating pump is provided with a pump check valve;
the first water inlet pipeline is connected between the main water inlet flowmeter and the pump check valve, and a first switch valve is arranged on the first water inlet pipeline;
the second inlet channel is connected between main water flowmeter and the pump check valve, be equipped with second ooff valve and water inlet stop valve on the second inlet channel, the second ooff valve is located between water inlet stop valve and the pump check valve.
Preferably, the second water inlet pipeline is also connected with an exhaust valve;
and the connecting position of the dispensing pipeline and the second water inlet pipeline is positioned between the exhaust valve and the water inlet stop valve.
Preferably, the multichannel dynamic corrosion test device further comprises a bypass pipeline which is connected in parallel with the test branch and is connected between the main water inlet flowmeter and the main water outlet flowmeter; and a bypass stop valve is arranged on the bypass pipeline.
Preferably, the dispensing pipeline comprises at least one dispensing pipeline, a heater arranged on the dispensing pipeline, and pipeline switching valves arranged on the dispensing pipeline and located on two opposite sides of the heater.
Preferably, the dispensing pipeline comprises a plurality of dispensing pipelines connected in parallel, and each dispensing pipeline is provided with the heater and a pipeline switching valve.
Preferably, the multi-channel dynamic corrosion test device further comprises a backwater sampling valve and a terminal sampling valve;
the backwater sampling valve is close to the second water inlet pipeline and connected to the dosing pipeline, and the inlet end of the terminal sampling valve close to the circulating pump is connected to the dosing pipeline.
The multichannel dynamic corrosion test device disclosed by the utility model can simulate the influence of the flow velocity in a nuclear power closed cooling water system on material corrosion, realize the control of multichannel dynamic flow velocity, greatly improve the test efficiency and have important significance on the corrosion prevention research of the nuclear power closed cooling water system.
In addition, the components such as the pipeline in the device are made of 316L stainless steel materials, so that the device is prevented from participating in a corrosion test, and errors caused by material corrosion are reduced.
Drawings
The utility model will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a logic diagram illustrating the connection of a multi-channel dynamic corrosion test apparatus according to an embodiment of the present invention;
fig. 2 is a cross-sectional view of the test vessel of fig. 1.
Detailed Description
For a more clear understanding of the technical features, objects, and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, the multi-channel dynamic corrosion test apparatus according to an embodiment of the present invention may include a control system 10, a main water inlet flow meter 30, a main water outlet flow meter 40, a plurality of test branches 50, a circulation pump 20, and a dispensing pipeline 60 for providing a test solution to the test branches 50.
Wherein, the main water inlet flow meter 30 and the main water outlet flow meter 40 are respectively connected with the outlet end of the circulating pump 20 through the first water inlet pipe 21 and the second water inlet pipe 22. The plurality of test branches 50 are connected in parallel between the main water inlet flow meter 30 and the main water outlet flow meter 40, the main water inlet flow meter 30 is used for monitoring the flow rate of the test solution before entering the test branches 50 (also called main water inlet flow rate), and the main water outlet flow meter 40 is used for monitoring the flow rate of the test solution after passing through the test branches 50 (also called main water outlet flow rate). The main water inlet flow meter 30 and the main water outlet flow meter 40 are both in communication connection with the control system 10, and send monitored flow information to the control system 10.
Each test shunt 50 forms a corrosion test channel for the test material 100 to undergo dynamic corrosion testing therein; the parallel arrangement of the plurality of test shunts 50 enables the plurality of test materials 100 to be subjected to the dynamic corrosion test at the same time, thereby providing test efficiency.
One end of the dispensing pipeline 60 is connected with the second water inlet pipeline 22, and the other end of the dispensing pipeline 60 is connected with the inlet end of the circulating pump 20, so that the dispensing pipeline 60, the circulating pump 20 and the second water inlet pipeline 22 are connected to form a first circulating loop in which the test solution circularly flows, the circulating pump 20 provides power to drive the test solution to circularly flow in the first circulating loop, and the uniformity of the temperature and the concentration of the test solution is ensured or improved. The dispensing pipeline 60 is connected with the test branch through the circulating pump 20, the first water inlet pipeline 21 and the second water inlet pipeline 22 to form a second circulating loop, and the circulating pump 20 provides power to drive the test solution to circularly flow between the dispensing pipeline and the test branch 50. In the second circulation loop, the test solution can be passed through the test material 100 in the test shunt 50 at a predetermined temperature and flow rate to effect a dynamic corrosion test.
Specifically, each test branch 50 may include a test pipe 51, a test container 52 disposed on the test pipe 51, a test inflow meter 53, a branch regulating valve 54, a branch cut valve 55, a branch switch valve 56, and a branch check valve 57. The test solution passes through the main water inlet flow meter 30 into each test line 51, flows along the test line 51 through the test vessel 52, and finally through the main water outlet flow meter 40. Along the direction of flow of the test solution, the test solution enters the test container 52 from an inlet side thereof and exits the test container 52 from an opposite outlet side thereof.
The test inflow flowmeter 53, the shunt regulating valve 54 and the shunt stop valve 55 are all located on the inlet side of the test container 52 on the test pipeline 51, the test inflow flowmeter 53 is closer to the test container 52 than the shunt regulating valve 54 and the shunt stop valve 55, and the shunt regulating valve 54 is located between the test inflow flowmeter 53 and the shunt stop valve 55. The test feed water flow meter 53 is used to monitor the flow rate of the test solution entering the test container 52 (which may be referred to as the test feed water flow rate). The shunt regulator valve 54 controls the flow rate of the test line 51 by adjusting the opening degree of the shunt regulator valve 54 in the test line 51. The shunt cutoff valve 55 controls the opening and closing of the test line 51 by its own switch.
The test inflow flowmeter 53 is in communication connection with the control system 10, and the test inflow flowmeter 53 sends the monitored flow information to the control system 10. The shunt regulating valve 54 can regulate the opening according to the flow information received by the control system 10, thereby realizing the control of the flow and the flow speed of the test shunt 50. The separation regulating valve 54 may be a control valve controlled by the control system 10, or may be a pneumatic regulating valve.
A shunt switching valve 56 and a shunt non-return valve 57 are both located on the outlet side of the test vessel 52 on the test pipe 51, and the shunt switching valve 56 is located between the test vessel 52 and the shunt non-return valve 57. The shunt switch valve 56 is used for controlling the on-off of the test pipeline 51 part on the outlet side of the test container 52 and is normally in a normally open state in the test process; the shunt switch valve 56 may be a ball valve. The shunt check valve 57 is used to prevent the test solution from flowing back into the test vessel 52.
As shown in fig. 2, in the test branch, the test container 52 may specifically include a hollow closed container 521 and a holder 522 disposed in the closed container 521 and configured to support the test material 100 in order to accommodate the test material 100 and allow the test solution to pass therethrough.
The opposite sides of the closed container 521 are respectively provided with an inlet 523 and an outlet 524, both for connecting the test pipeline 51. The side of the closed vessel 521 having the inlet 523 forms the inlet side of the test vessel 52, and the side having the outlet 524 forms the outlet side of the test vessel 52. The holder 522 may have a frame structure or a bar structure, and when the test material 100 is held in the closed container 521, the contact area with the test material 100 is small, so that the test solution can sufficiently pass through all surfaces of the test material 100, and the accuracy of the corrosion test can be ensured.
The test material 100 may be provided in the form of a sheet as shown in fig. 2, or in the form of a strip, block, or the like.
In order to realize the corrosion test study of the test material 100 at different flow rates, the test pipes 51 of the plurality of test branches 50 have different pipe diameters. In the case where the test solution is pumped out to the plurality of test branches 50 by the power of a circulation pump 20, the test solution is formed to have different flow rates into the test tubes 51 of different tube diameters.
The inlet ends of all test branches 50 may be joined and connected to a main pipe 501, through which main pipe 501 the main inlet flow meter 30 is connected. The outlet ends of all test branches 50 may be joined and connected to a further main pipe 502, through which main pipe 502 the main outlet flow meter 40 is connected.
The outlet end of the circulation pump 20 is provided with a pump check valve 23 to prevent the test solution from flowing back. First water inlet pipe 21 is connected between main water inlet flow meter 30 and circulating pump 20, and is specifically connected with circulating pump 20 through pump check valve 23. The first water inlet pipe 21 is further provided with a first switching valve 24 for controlling the passage of the first water inlet pipe 21 so as to connect the test branch 50 with the circulation pump 20 or to disconnect the test branch 50 from the circulation pump 20.
The second water inlet pipe 22 is connected between the main water outlet flow meter 40 and the pump check valve 21, and is specifically connected to the circulation pump 20 through the pump check valve 23. The second water inlet pipe 22 is provided with a second switch valve 25 and a water inlet stop valve 26, and the second switch valve 25 is positioned between the water inlet stop valve 26 and the pump check valve 23. The second switch valve 25 and the water inlet stop valve 26 are used for controlling the on-off of the second water inlet pipeline 22, the outlet end of the test branch 50 and the circulating pump 20 are disconnected in the test process, and test solution flowing out of the test branch 50 is prevented from being mixed into the first water inlet pipeline 21 through the second water inlet pipeline 22. The second on-off valve 25 may be a ball valve.
The second water inlet pipe 22 is also connected with an exhaust valve 27. The exhaust valve 27 communicates with the test branch 50 through the main effluent flow meter 40 for venting the test branch 50.
Dispense pipeline 60 and connect second inlet channel 22 and circulating pump 20, be connected with experimental outlet end of dividing a branch 50 through second inlet channel 22 to the experimental solution of experimental 50 output of dividing a branch gets into through second inlet channel 22 and dispenses pipeline 60, and the rethread pipeline 60 that dispenses gets into circulating pump 20, with this circulation, forms foretell second circulation circuit.
Specifically, the inlet end of the dispensing pipeline 60 is connected to the second water inlet pipeline 22, the connection position of the dispensing pipeline 60 and the second water inlet pipeline 22 is located between the exhaust valve 27 and the water inlet stop valve 26, and the outlet end of the dispensing pipeline 60 is connected to the inlet end of the circulating pump 20.
The dispensing line 60 includes at least one dispensing tube 61, a heater 62 disposed on the dispensing tube 61, and line switching valves 63 disposed on the dispensing tube 61 and on opposite sides of the heater 62. The heater 62 is used to heat the test solution to the desired test temperature. The pipeline switching valves 63 on both sides of the heater 62 are respectively used for controlling the on-off between the inlet and outlet sides of the heater 62 and the dispensing pipeline 61.
In one test embodiment, one dispensing tube 61 and heater 62 thereon may provide test solution to multiple test shunts 50 simultaneously.
Preferably, the dispensing line 60 comprises a plurality of dispensing lines 61 connected in parallel, and each dispensing line 61 is provided with a heater 62 and a line switching valve 63. In this way, different dispensing pipes 61 and heaters 62 thereon can provide test solutions with different temperatures, so as to realize corrosion research of the test material 100 under the test solutions with different temperatures.
In addition, a drain valve 621 is provided on each heater 62, and after the test is completed, the test solution in the heater 62 is discharged through the drain valve 621.
Further, the multi-channel dynamic corrosion test device of the present invention further comprises a bypass pipe 70, wherein the bypass pipe 70 is connected between the main water inlet flow meter 30 and the main water outlet flow meter 40, and is connected in parallel with the test branch 50. The bypass pipe 70 is provided with a bypass cut-off valve 71 for controlling the opening and closing of the bypass pipe.
The two ends of the bypass duct 70 may be connected to the two main pipes 501 and 502, respectively. The bypass cut-off valve 71 is normally closed, and when the flow rate abnormality occurs in all the test branches 50, the bypass cut-off valve 71 is opened to perform the branching.
The multi-channel dynamic corrosion test device further comprises a backwater sampling valve 80 and a terminal sampling valve 90. The return water sampling valve 80 is connected to the dispensing pipeline 60 near the second water inlet pipe 22, and is used for sampling the test solution after passing through the flow test branch 50, so as to analyze and research components therein. The terminal sampling valve 90 is connected to the dispensing line 60 near the inlet end of the circulation pump 20, and samples the test solution flowing to the terminal for analysis and research of the components therein.
In the multi-channel dynamic corrosion test device, the inner walls of all the pipelines, all the valves and the inner wall of the heater 62 are made of 316L stainless steel, so that the corrosion of a test solution and the release of corrosion products can be effectively prevented.
When the multi-channel dynamic corrosion test device is used, the influence of the flow velocity in the nuclear power closed cooling water system on material corrosion can be simulated, the flow velocity and the temperature of a corresponding test solution (such as a phosphate radical-containing solution) are set according to the flow velocity, the temperature and the like in the nuclear power closed cooling water system, and a dynamic corrosion test is performed on the test material (such as carbon steel).
Before the corrosion test is performed, the test solution may be pumped into the first circulation loop. Under the drive of the circulating pump 20, the test solution enters the dispensing pipeline 60, enters the heater 62 through the dispensing pipeline 61, returns to the circulating pump 20 after being heated, and returns to the dispensing pipeline 60 after passing through the pump check valve 23, the second water inlet pipeline 22, the second switch valve 25 on the second water inlet pipeline and the water inlet stop valve 26, so that the circulation of the test solution is realized, and the uniformity of the temperature and the concentration of the test solution is ensured.
During the test, the first switch valve 24 on the first water inlet pipeline 21 is opened, the circulating pump 20 is started, the test solution of the dispensing pipeline 60 is pumped out, the test solution enters the plurality of test branches 50 after passing through the first water inlet pipeline 21 and the main water inlet flowmeter 30, enters the test container 52 after passing through the branch stop valve 55, the branch regulating valve 54 and the test water inlet flowmeter 53 in sequence, flows out, then passes through the branch switch valve 56, the branch check valve 57 and the main water outlet flowmeter 40 in sequence, and returns to the dispensing pipeline 60 along the second water inlet pipeline 22.
After receiving the signal N of the main inflow flowmeter 30, the signal ni of the test inflow flowmeter 53 on each test branch 50, and the signal M of the main outflow flowmeter 40, the control system 10 obtains flow information corresponding to each signal, and automatically adjusts the branch adjusting valve 54 on each test branch 50, so that the test inflow flow, the main inflow flow, and the main outflow flow are matched, and the following setting conditions are met: l N- Σ ni | < 1% N, | N-M | < 1% N; and after the flow signal is stable, recording the time, and starting the dynamic corrosion test.
In the above test process, by switching the valves on the respective pipelines, one dispensing pipeline 61 may provide the test solution at the predetermined temperature for one or more test branches 50, or a plurality of dispensing pipelines 61 may provide the test solutions at different temperatures for one test branch 50 in sequence, or a plurality of dispensing pipelines 61 may provide the test solutions at the predetermined temperatures for different test branches 50, respectively. The flow rate over the plurality of test branches 50 can be individually controlled.
According to the requirement of simulating the influence of the flow velocity in the nuclear power closed cooling water system on material corrosion, the flow velocity regulation and control range entering the test branch 50 in the test process is 0.1m/s-5 m/s; the temperature of the test solution was controlled to 25 deg.C-100 deg.C by heater 62.
The above description is only an embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structures or equivalent processes performed by the present invention or directly or indirectly applied to other related technical fields are included in the scope of the present invention.
Claims (10)
1. A multi-channel dynamic corrosion test device is characterized by comprising a control system, a main water inlet flow meter, a main water outlet flow meter, a plurality of test branches connected in parallel between the main water inlet flow meter and the main water outlet flow meter, a circulating pump and a dispensing pipeline for providing test solution for the test branches;
the main water inlet flow meter and the main water outlet flow meter are respectively connected with the outlet end of the circulating pump through a first water inlet pipeline and a second water inlet pipeline; one end of the dispensing pipeline is connected with the second water inlet pipeline, and the other end of the dispensing pipeline is connected with the inlet end of the circulating pump, so that the dispensing pipeline, the circulating pump and the second water inlet pipeline are connected to form a first circulating loop in which the test solution circularly flows, the dispensing pipeline is connected with the test branch through the circulating pump, the first water inlet pipeline and the second water inlet pipeline to form a second circulating loop in which the test solution circularly flows between the dispensing pipeline and the test branch;
each test branch comprises a test pipeline, a test container, a test water inlet flowmeter, a branch regulating valve and a branch stop valve, wherein the test container is arranged on the test pipeline and used for accommodating test materials, and the test water inlet flowmeter, the branch regulating valve and the branch stop valve are arranged on the test pipeline and positioned at the inlet side of the test container;
and the main water inlet flow meter, the main water outlet flow meter and the test water inlet flow meter are all in communication connection with the control system.
2. The multi-channel dynamic corrosion test device of claim 1, wherein the test tubes of a plurality of said test shunts are of different tube diameters.
3. The multi-channel dynamic corrosion test device of claim 1, wherein the test manifold further comprises a manifold switch valve and a manifold check valve disposed on the test conduit and on an outlet side of the test vessel.
4. The multi-channel dynamic corrosion test apparatus according to claim 1, wherein the test vessel comprises a hollow closed vessel, a support disposed within the closed vessel for supporting a test material;
the two opposite sides of the closed container are respectively provided with an inlet and an outlet which are used for connecting the test pipeline; the side of the closed container having the inlet forms the inlet side of the test container and the side having the outlet forms the outlet side of the test container.
5. The multi-channel dynamic corrosion test device according to claim 1, wherein a pump check valve is arranged at an outlet end of the circulating pump;
the first water inlet pipeline is connected between the main water inlet flowmeter and the pump check valve, and a first switch valve is arranged on the first water inlet pipeline;
the second inlet channel is connected between main water flowmeter and the pump check valve, be equipped with second ooff valve and water inlet stop valve on the second inlet channel, the second ooff valve is located between water inlet stop valve and the pump check valve.
6. The multi-channel dynamic corrosion test device according to claim 5, wherein the second water inlet pipeline is further connected with an exhaust valve;
and the connecting position of the dispensing pipeline and the second water inlet pipeline is positioned between the exhaust valve and the water inlet stop valve.
7. The multi-channel dynamic corrosion test device of claim 1, further comprising a bypass conduit connected in parallel with the test shunt between the main water inlet flow meter and the main water outlet flow meter; and a bypass stop valve is arranged on the bypass pipeline.
8. The multi-channel dynamic corrosion test device according to claim 1, wherein the dispensing pipeline comprises at least one dispensing pipeline, a heater arranged on the dispensing pipeline, and pipeline switching valves arranged on the dispensing pipeline and located on two opposite sides of the heater.
9. The multi-channel dynamic corrosion test device according to claim 8, wherein the dispensing pipeline comprises a plurality of dispensing pipelines connected in parallel, and each dispensing pipeline is provided with the heater and a pipeline switching valve.
10. The multi-channel dynamic corrosion test device according to any of claims 1 to 9, further comprising a backwater sampling valve and a terminal sampling valve;
the backwater sampling valve is connected to the dispensing pipeline close to the second water inlet pipeline, and the inlet end of the terminal sampling valve close to the circulating pump is connected to the dispensing pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220646650.3U CN217033552U (en) | 2022-03-23 | 2022-03-23 | Multi-channel dynamic corrosion test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220646650.3U CN217033552U (en) | 2022-03-23 | 2022-03-23 | Multi-channel dynamic corrosion test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217033552U true CN217033552U (en) | 2022-07-22 |
Family
ID=82412308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220646650.3U Active CN217033552U (en) | 2022-03-23 | 2022-03-23 | Multi-channel dynamic corrosion test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217033552U (en) |
-
2022
- 2022-03-23 CN CN202220646650.3U patent/CN217033552U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109078931A (en) | The dynamic simulation tester and application method of high temperature gas cooled reactor nuclear power unit secondary circuit chemical cleaning | |
| CN112394023A (en) | Nuclear island equipment cooling water system material corrosion simulation device and use method thereof | |
| CN111816894A (en) | Fuel cell heat management device and control method thereof | |
| CN217033552U (en) | Multi-channel dynamic corrosion test device | |
| CN213986129U (en) | Nuclear island equipment cooling water system material corrodes analogue means | |
| CN109824133B (en) | Monitoring control method and device for corrosion prevention of heat supply network circulating water system | |
| CN203745453U (en) | Integrated water quality online monitoring and pretreatment device | |
| CN213984758U (en) | Full-automatic self-cleaning plate type heat exchange device | |
| CN114354471A (en) | Device and method applied to spray corrosion test | |
| CN213340446U (en) | System for reducing conductivity of fuel cell | |
| CN1354546A (en) | Inner-cooling water microcirculation slowly-releasing regulation and control method and its monitoring system | |
| CN208680052U (en) | The dynamic simulation tester of high temperature gas cooled reactor nuclear power unit secondary circuit chemical cleaning | |
| CN210511077U (en) | Heat exchange pipe leakage online diagnosis device of heat supply unit | |
| CN109186091B (en) | Cooling medium supply device and control method | |
| CN214572074U (en) | Cooling water diversion system for straight cooling section of cooling wall of blast furnace | |
| CN217164439U (en) | Online replacement device suitable for hydrogen conductive resin of chemical instrument of power plant | |
| CN220249684U (en) | Lead bismuth pipeline on-line switching device | |
| CN114447369A (en) | System and control method for reducing conductivity of fuel cell | |
| CN112684077A (en) | Gas optimization processing device for chromatographic test | |
| CN218036331U (en) | Corrosion and scaling simulation test device for heat supply network system | |
| CN215027473U (en) | Slurry pH control device of ammonia desulphurization system | |
| CN218873137U (en) | Pipeline backwashing device of cold rolling and pickling line | |
| CN117169098A (en) | Corrosion rate detection device for simulated heat supply network system | |
| CN217057159U (en) | Automatic water sample switching device | |
| CN221075345U (en) | Aluminum electrolysis smoke volume governing system of area blowback |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |