CN206671149U - A kind of full-automatic oxygen deprivation corrosion testing apparatus - Google Patents
A kind of full-automatic oxygen deprivation corrosion testing apparatus Download PDFInfo
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- CN206671149U CN206671149U CN201720246725.8U CN201720246725U CN206671149U CN 206671149 U CN206671149 U CN 206671149U CN 201720246725 U CN201720246725 U CN 201720246725U CN 206671149 U CN206671149 U CN 206671149U
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Abstract
A kind of full-automatic oxygen deprivation corrosion testing apparatus, the device are mainly made up of automatic control system, inert gas bottle, reactor, preparing device, sealing respirator, doser, sample hooking device, pipeline, motor-driven valve, liquid level sensor, thermocouple and oxygen electrode etc.；Prepared by the utility model oxygen deprivation water and solution is prepared substep and carried out, and avoids and is directly passed through nitrogen deoxygenation to solution and causes solute by stripping；All experiment processes are carried out in a system, and sealing respirator both ensures system and atmospheric isolation, and dissolved oxygen and concentration are stable in maintenance reaction device, also ensure that system freely breathes, do not build the pressure；The utility model can realize the accurate configuration of any poor oxygen concentration (0ppb 8000ppb) testing liquid, and accurately control, and experiment process is performed fully automatic.
Description
Technical field
It the utility model is related to oxygen deprivation corrosion test technique field, more particularly to a kind of full-automatic oxygen deprivation corrosion test dress
Put.
Background technology
In corrosion and corrosion protection research work, oxygen is as a key influence factor, it is necessary to different oxyty (nothings
It is oxygen, oxygen deprivation, oxygen-enriched) under corrosion phenomenon carry out experimental study.If gas directly is passed through to testing liquid to change in solution
Dissolved oxygen content, when solute gas-liquid partition coefficient is larger in testing liquid, solute can be by a large amount of strippings in venting process so that solution
Concentration reduces, and experimental condition changes.If preparing the qualified test water of dissolved oxygen in advance, then prepared and tried with this test water
Solution is tested, leaking into for air can make the dissolved oxygen content of solution change in operating process, and reaction condition is also changed.Mesh
Preceding technology is difficult to realize testing liquid Chinese medicine agent concentration and the synchronous accurate control of oxyty.
The content of the invention
In order to solve above-mentioned deficiency, the purpose of this utility model is to provide a kind of full-automatic oxygen deprivation corrosion testing apparatus,
Prepared by oxygen deprivation water, solution is prepared and corrosion test substep is carried out, and avoid directly causes solute also to be kept away by stripping to solution ventilation
Exempt to cause solution to change with the qualified water configuration solution of dissolved oxygen in open environment；All processes are complete in a system
Into system is all the time in sealing and free breathing state, it is ensured that system does not leak into air, maintains system dissolved oxygen stable controllable；It is right
Dissolved oxygen is monitored in real time, realizes the accurate control to testing liquid dissolved oxygen and drug concentration；All experiment processes are by PLC
Automatically control, be performed fully automatic.
To reach above-mentioned purpose, the utility model adopts the following technical scheme that：
A kind of full-automatic oxygen deprivation corrosion testing apparatus, including inert gas bottle 1, preparing device 5, reactor 6 and sealing breathing
Device 7, the demineralized water of ormal weight is filled in the preparing device 5, seal in respirator 7 and keep certain water level, reactor 6 indicates quarter
Degree；The first pipeline L1, the first pipeline L1 is connected on inert gas bottle 1 and divides two-way, preparing device 5 is accessed by the second pipeline L2 all the way
Demineralized water ullage, another way outlet is provided with the second motor-driven valve K2, and the second motor-driven valve K2 divides two-way in outlet, passed through all the way
In the demineralized water of 3rd pipeline L3 access preparing devices 5, another way is passed through the 6th pipe in reactor 6 by the 4th pipeline L4 connections
Road L6, the 5th pipeline L5 of the insertion demineralized water ullage of preparing device 5 also connect the 6th pipeline L6 being passed through in reactor 6, the
Seven pipeline L7 connect reactor 6 and seal the water in respirator 7, the 8th pipeline L8 connections on the sealing water level of respirator 7
To outside, the gas discharged during experiment is drained into outside, experimental rig is in sealing and the state that do not build the pressure；Described second
Pipeline L2, the 4th pipeline L4 and the 5th pipeline L5 are respectively arranged with the first motor-driven valve K1, the 3rd motor-driven valve K3 and the 4th motor-driven valve
K4, the 4th pipeline L4 are provided with doser 2, and the thermocouple of oxygen electrode 3 and first is inserted in the demineralized water of the preparing device 5
R1, the second thermocouple R2 and liquid level sensor Y are inserted in the reactor 6 and top is hung with sample hooking device 4；Also include by
The control system that PLC 8, man machine operation interface 9 and display interface 10 are formed, the control system connect the first motor-driven valve K1, the
Two motor-driven valve K2, the 3rd motor-driven valve K3, the 4th motor-driven valve K4, the first thermocouple R1, the second thermocouple R2, oxygen electrode 3 and liquid level
Sensor Y；The PLC 8 receives the letter that the first thermocouple R1, the second thermocouple R2, liquid level sensor Y and oxygen electrode 3 transmit
Number, the first motor-driven valve K1, the second motor-driven valve K2, the 3rd motor-driven valve are opened or closed according to the upper lower limit value of setting and time delay
K3 and the 4th motor-driven valve K4, prepared with reaching control heavy-oxygen-enriched water, the purpose that solution is prepared, experiment is carried out and terminated.
The first thermocouple R1 and the second thermocouple R2 is used to monitor the temperature in preparing device 5 and reactor 6, numerical value
Display interface 10 and PLC 8 are respectively sent to signal.
The liquid level sensor Y is located in reactor 6, and for monitoring solution level, numerical value and signal are respectively sent to show
Show interface 10 and PLC 8.
The oxygen electrode 3 is located in preparing device 5, and for detecting the dissolved oxygen content in preparing device 5, numerical value and signal pass respectively
Deliver to display interface 10 and PLC 8；Described preparing device 5 is used for the oxygen deprivation water for preparing specified oxyty.
The first motor-driven valve K1, the second motor-driven valve K2, the material of the 3rd motor-driven valve K3 and the 4th motor-driven valve K4 valve bodies are adopted
With stainless steel or Plastic corrosion resistant material, its switch is automatically controlled by PLC 8.
The man machine operation interface 9 is used to set test parameters, when test parameters is dissolved oxygen content, solution level, experiment
Between and test temperature；The display interface 10 receive and show from oxygen electrode 3, the first thermocouple R1, the second thermocouple R2 and
Liquid level sensor Y numerical value.
The nitrogen cylinder 1 accesses experimental rig by the first pipeline L1, for the oxygen deprivation water in deoxygenation and solution process for preparation
Conveyed with test medicine.
The material of the doser 2 is resistant material；The material of the sample hooking device 4 is corrosion resistant material, for hanging
Put corrosion coupon.
The preparing device 5, reactor 6 and sealing respirator 7 are column, spherical, triangle or square, and its material is not using
Become rusty steel, lucite, glass or Plastic corrosion resistant material；The first pipeline L1, the second pipeline L2, the 3rd pipeline L3, the 4th
Pipeline L4, the 5th pipeline L5, the 6th pipeline L6, the 7th pipeline L7 and the 8th pipeline L8 material use stainless steel, glass or modeling
Expect class corrosion resistant material.
The test method of described full-automatic oxygen deprivation corrosion testing apparatus, comprises the following steps：
The first step is prepared for oxygen deprivation water：The demineralized water of ormal weight is added into preparing device 5, is set by man machine operation interface 9
Test period, test temperature, medicine liquid volume and dissolved oxygen content；It is electronic that PLC 8 automatically controls opening the second motor-driven valve K2 and the 4th
Valve K4, inert gas are passed through in the demineralized water in preparing device 5 through the first pipeline L1 and the 3rd pipeline L3 and carry out deoxygenation, and gas is again
Enter reactor 6 through the 5th pipeline L5 and the 6th pipeline L6, deoxygenation is carried out to reactor 6, gas enters through the 7th pipeline L7 again
Respirator 7 is sealed, gas is finally drained into outdoor by the 8th pipeline L8；
Second step is prepared for testing liquid：Oxygen electrode 3 is measured after oxygen deprivation water-soluble oxygen reaches test requirements document in preparing device 5, PLC
8 automatically control and close the second motor-driven valve K2 and the 4th motor-driven valve K4, it is to be checked measure dissolved oxygen content and temperature in preparing device and reach set
After definite value 3min, the first motor-driven valve K1 and the 3rd motor-driven valve K3 is automatically opened up, inert gas is managed via the first pipeline L1 and second
Road L2 enters preparing device 5, through the 3rd pipeline L3, the 4th pipeline L4, the 6th pipeline L6 and doser 2 by the oxygen deprivation in preparing device 5
Test medicine in water and doser 2 is added in reactor 6, and liquid level reaches the automatic electricity of closing first after setting value in reactor 6
Dynamic valve K1 and the 3rd motor-driven valve K3, complete testing liquid and prepare, on-test is carried out；
3rd step is corrosion test：When test period reaches setting value, heating system is closed automatically, and sends experiment knot
Beam prompt tone.
Compared to the prior art compared with the utility model possesses following advantage：
The utility model can realize the configuration of any oxyty (0ppb-8000ppb) oxygen deprivation testing liquid, oxygen deprivation water
Prepare and solution is prepared substep and carried out, avoid and be directly passed through gas to solution and cause solute also to be avoided in open loop by stripping
Dissolved oxygen is caused to change with the qualified water configuration solution of dissolved oxygen in border.All processes are completed in a system, and system is all the time
In sealing and free breathing state, it is ensured that system does not leak into air, maintains system dissolved oxygen and drug concentration stable.Dissolved oxygen is entered
Row monitoring in real time, realizes the accurate control to testing liquid dissolved oxygen and drug concentration.All experiment processes are controlled automatically by PLC
System, is performed fully automatic.
Brief description of the drawings
Fig. 1 is the full-automatic oxygen deprivation corrosion testing apparatus structural representation of the utility model.
Embodiment
Structural principle of the present utility model and operation principle are made with reference to the accompanying drawings and detailed description further detailed
Describe in detail bright.
Embodiment 1：
As described in Figure 1, the full-automatic oxygen deprivation corrosion testing apparatus of the present embodiment, mainly by inert gas bottle 1, doser 2, oxygen
Electrode 3, sample hooking device 4, preparing device 5, reactor 6, sealing respirator 7, pipeline (L1-L8), motor-driven valve (K1-K4), thermoelectricity
The composition such as even (R1, R2), liquid level sensor Y and PLC8 control system.
All containers are square, and container, pipeline and motor-driven valve are made by PVC material.
The test method of the present embodiment corrosion testing apparatus, oxyty 0ppb, test temperature 40 are set by man-machine interface
DEG C, test period 4h, liquor capacity 600mL, experimental rig is placed in 40 DEG C of waters bath with thermostatic control, it is rotten that sample hooking device 4 hangs carbon steel
Test piece is lost, 1000mL demineralized waters are added into preparing device 5.The first step is prepared for oxygen deprivation water：PLC 8 automatically controls opening second
Motor-driven valve K2 and the 4th motor-driven valve K4, enter in the demineralized water that nitrogen is passed through in preparing device 5 through the first pipeline L1 and the 3rd pipeline L3
Row deoxygenation, gas enters reactor 6 through the 5th pipeline L5 and the 6th pipeline L6 again, then enters sealing respirator through the 7th pipeline L7
7, gas is finally drained into outdoor by the 8th pipeline L8, completes the deoxygenation to reactor 6 and system pipeline.Dissolved oxygen after 20min
Stable content is automatic to close the second motor-driven valve K2 and the 4th motor-driven valve K4 between 0ppb-2ppb.Second step is testing liquid
Prepare：Dissolved oxygen and temperature reach setting value and kept after stablizing 3min, and the first motor-driven valve K1 and the 3rd motor-driven valve K3 are beaten automatically
Open, nitrogen enters preparing device 5 via the first pipeline L1 and the second pipeline L2, through the 3rd pipeline L3, the 4th pipeline L4, the 6th pipeline
L6 and doser 2 add the test medicine in the oxygen deprivation water and doser 2 in preparing device 5 in reactor 6, liquid in reactor 6
It is automatic to close the first motor-driven valve K1 and the 3rd motor-driven valve K3 when position rises to 600mL, complete testing liquid and prepare, on-test enters
OK.When test period reaches 4h, heating system is closed automatically, and sends off-test prompt tone.
Embodiment 2：
As described in Figure 1, a kind of full-automatic oxygen deprivation corrosion testing apparatus of the utility model and method, mainly by nitrogen cylinder 1 plus
Medicine device 2, oxygen electrode 3, sample hooking device 4, preparing device 5, reactor 6, sealing respirator 7, pipeline (L1-L8), motor-driven valve (K1-
K4), thermocouple (R1, R2), liquid level sensor Y and PLC8 control system etc. form.
All containers are column, and material is lucite, and pipeline and motor-driven valve are made up of PVC material.
The test method of the present embodiment corrosion testing apparatus, oxyty 700ppb, test temperature are set by man-machine interface
45 DEG C, test period 4h, liquor capacity 700mL, experimental rig is placed in 45 DEG C of waters bath with thermostatic control, sample hooking device 4 hangs carbon steel
Corrosion coupon, 1000mL demineralized waters are added into preparing device 5.The first step is prepared for oxygen deprivation water：PLC 8 automatically controls opening
Two motor-driven valve K2 and the 4th motor-driven valve K4, nitrogen are passed through in the demineralized water in preparing device 5 through the first pipeline L1 and the 3rd pipeline L3
Deoxygenation is carried out, gas enters reactor 6 through the 5th pipeline L5 and the 6th pipeline L6 again, then enters sealing through the 7th pipeline L7 and breathe
Device 7, gas is finally drained into outdoor by the 8th pipeline L8, complete the deoxygenation to reactor 6 and system pipeline.It is molten after 16min
Oxygen content is stable between 700ppb-720ppb, automatic to close the second motor-driven valve K2 and the 4th motor-driven valve K4.Second step is examination
Test solution preparation：Dissolved oxygen and temperature reach setting value and kept after stablizing 3min, the first motor-driven valve K1 and the 3rd motor-driven valve K3
Automatically open up, nitrogen enters preparing device 5 via the first pipeline L1 and the second pipeline L2, through the 3rd pipeline L3, the 4th pipeline L4,
Six pipeline L6 and doser 2 add the test medicine in the oxygen deprivation water and doser 2 in preparing device 5 in reactor 6, reactor
It is automatic to close the first motor-driven valve K1 and the 3rd motor-driven valve K3 when liquid level rises to 700mL in 6, complete testing liquid and prepare, experiment opening
Begin to carry out.When test period reaches 4h, heating system is closed automatically, and sends off-test prompt tone.
Embodiment 3：
As described in Figure 1, a kind of full-automatic oxygen deprivation corrosion testing apparatus of the utility model and method, mainly by nitrogen cylinder 1 plus
Medicine device 2, oxygen electrode 3, sample hooking device 4, preparing device 5, reactor 6, sealing respirator 7, pipeline (L1-L8), motor-driven valve (K1-
K4), thermocouple (R1, R2), liquid level sensor Y and PLC8 control system etc. form.
All containers are spherical, and material is glass, and pipeline material is polytetrafluoroethylene (PTFE), and motor-driven valve material is 304 stainless steels.
The test method of the present embodiment corrosion testing apparatus, oxyty 6000ppb, experiment temperature are set by man-machine interface
50 DEG C, test period 5h, liquor capacity 500mL of degree, experimental rig is placed in 50 DEG C of waters bath with thermostatic control, and sample hooking device 4 hangs carbon
Steel corrosion test piece, 1000mL demineralized waters are added into preparing device 5.The first step is prepared for oxygen deprivation water：PLC 8 automatically controls opening
Second motor-driven valve K2 and the 4th motor-driven valve K4, nitrogen are passed through the demineralized water in preparing device 5 through the first pipeline L1 and the 3rd pipeline L3
Middle carry out deoxygenation, gas enters reactor 6 through the 5th pipeline L5 and the 6th pipeline L6 again, then is exhaled through the 7th pipeline L7 into sealing
Haustorium 7, gas is finally drained into outdoor by the 8th pipeline L8, complete the deoxygenation to reactor 6 and system pipeline.After 16min
Dissolved oxygen content is stable between 6000ppb-6050ppb, automatic to close the second motor-driven valve K2 and the 4th motor-driven valve K4.Second step is
Testing liquid is prepared：Dissolved oxygen and temperature reach setting value and kept after stablizing 3min, the first motor-driven valve K1 and the 3rd motor-driven valve
K3 is automatically opened up, and nitrogen enters preparing device 5 via the first pipeline L1 and the second pipeline L2, through the 3rd pipeline L3, the 4th pipeline
L4, the 6th pipeline L6 and doser 2 add the test medicine in the oxygen deprivation water and doser 2 in preparing device 5 in reactor 6,
It is automatic to close the first motor-driven valve K1 and the 3rd motor-driven valve K3 when liquid level rises to 500mL in reactor 6, complete testing liquid and match somebody with somebody
System, on-test, are carried out.When test period reaches 5h, heating system is closed automatically, and sends off-test prompt tone.
Claims (4)
- A kind of 1. full-automatic oxygen deprivation corrosion testing apparatus, it is characterised in that：Including inert gas bottle (1), preparing device (5), reaction Device (6) and sealing respirator (7), the interior demineralized water for filling ormal weight of the preparing device (5), sealing respirator (7) is middle to keep one Determine water level, reactor (6) indicates scale；The first pipeline (L1) is connected on inert gas bottle (1), the first pipeline (L1) divide two-way, The demineralized water ullage of preparing device (5) is accessed by the second pipeline (L2) all the way, another way outlet is provided with the second motor-driven valve (K2), the second motor-driven valve (K2) outlet divides two-way, is accessed all the way by the 3rd pipeline (L3) in the demineralized water of preparing device (5), separately The 6th pipeline (L6) being passed through all the way by the connection of the 4th pipeline (L4) in reactor (6), inserts preparing device (5) desalination water level 5th pipeline (L5) of top also connects the 6th pipeline (L6) being passed through in reactor (6), the 7th pipeline (L7) connection reactor (6) and the water in respirator (7) is sealed, the 8th pipeline (L8) on sealing respirator (7) water level is externally connected, will try The gas discharged during testing drains into outside, experimental rig is in sealing and the state that do not build the pressure；Second pipeline (L2), Four pipelines (L4) and the 5th pipeline (L5) are respectively arranged with the first motor-driven valve (K1), the 3rd motor-driven valve (K3) and the 4th motor-driven valve (K4), the 4th pipeline (L4) is provided with doser (2), and oxygen electrode (3) and the are inserted in the demineralized water of the preparing device (5) One thermocouple (R1), the reactor (6) the second thermocouple of middle insertion (R2) and liquid level sensor (Y) and top are hung with sample Hooking device (4)；Also include the control system being made up of PLC (8), man machine operation interface (9) and display interface (10), the control System connects the first motor-driven valve (K1), the second motor-driven valve (K2), the 3rd motor-driven valve (K3), the 4th motor-driven valve (K4), the first thermoelectricity Even (R1), the second thermocouple (R2), oxygen electrode (3) and liquid level sensor (Y).
- A kind of 2. full-automatic oxygen deprivation corrosion testing apparatus according to claim 1, it is characterised in that：First motor-driven valve (K1), the material of the second motor-driven valve (K2), the 3rd motor-driven valve (K3) and the 4th motor-driven valve (K4) valve body uses stainless steel or plastics Class corrosion resistant material, its switch are automatically controlled by PLC (8).
- A kind of 3. full-automatic oxygen deprivation corrosion testing apparatus according to claim 1, it is characterised in that：The doser (2) Material be resistant material；The material of the sample hooking device (4) is corrosion resistant material, for hanging corrosion coupon.
- A kind of 4. full-automatic oxygen deprivation corrosion testing apparatus according to claim 1, it is characterised in that：The preparing device (5), Reactor (6) and sealing respirator (7) are column, spherical, triangle or square, and its material is using stainless steel, lucite, glass Glass or Plastic corrosion resistant material；First pipeline (L1), the second pipeline (L2), the 3rd pipeline (L3), the 4th pipeline (L4), Five pipelines (L5), the 6th pipeline (L6), the material of the 7th pipeline (L7) and the 8th pipeline (L8) use stainless steel, glass or plastics Class corrosion resistant material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720246725.8U CN206671149U (en) | 2017-03-14 | 2017-03-14 | A kind of full-automatic oxygen deprivation corrosion testing apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720246725.8U CN206671149U (en) | 2017-03-14 | 2017-03-14 | A kind of full-automatic oxygen deprivation corrosion testing apparatus |
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| CN206671149U true CN206671149U (en) | 2017-11-24 |
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| CN201720246725.8U Expired - Fee Related CN206671149U (en) | 2017-03-14 | 2017-03-14 | A kind of full-automatic oxygen deprivation corrosion testing apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108872055A (en) * | 2018-08-01 | 2018-11-23 | 中国石油天然气集团有限公司 | A kind of pre- deoxygenation detection of corrosion test solution and chemicals dosing plant and method |
-
2017
- 2017-03-14 CN CN201720246725.8U patent/CN206671149U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108872055A (en) * | 2018-08-01 | 2018-11-23 | 中国石油天然气集团有限公司 | A kind of pre- deoxygenation detection of corrosion test solution and chemicals dosing plant and method |
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