CN206573456U - A kind of full-automatic oxygen-enriched corrosion testing apparatus - Google Patents
A kind of full-automatic oxygen-enriched corrosion testing apparatus Download PDFInfo
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- CN206573456U CN206573456U CN201720246111.XU CN201720246111U CN206573456U CN 206573456 U CN206573456 U CN 206573456U CN 201720246111 U CN201720246111 U CN 201720246111U CN 206573456 U CN206573456 U CN 206573456U
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Abstract
A kind of full-automatic oxygen-enriched corrosion testing apparatus, the device is main to be made up of automatic control system, inert gas storage bottle, oxygen cylinder, reactor, preparing device, sealing respirator, doser, sample hooking device, pipeline, motor-driven valve, liquid level sensor, thermocouple and oxygen electrode；Prepared by the utility model heavy-oxygen-enriched water and solution is prepared substep and carried out, it is to avoid directly to solution being passed through gas causes solute by stripping；Demineralized water and test medicine are added in reactor together using inert gas when preparing solution, it is to avoid continue to be passed through influence of the oxygen to dissolved oxygen；All processs of the test are carried out in a system, and sealing respirator both ensures that dissolved oxygen and concentration are stable in system and atmospheric isolation, maintenance reaction device, also ensure that system is freely breathed, do not build the pressure；The utility model can realize the accurate configuration of any oxygen-rich concentration (8000ppb 40000ppb) testing liquid, and accurately control, and process of the test is performed fully automatic.
Description
Technical field
The utility model is related to oxygen corrosion experimental technique field, more particularly to a kind of full-automatic oxygen-enriched corrosion testing apparatus.
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 directly being passed through gas to change in solution to testing liquid
When solute gas-liquid partition coefficient is larger in dissolved oxygen content, testing liquid, solute can be by a large amount of strippings in venting process so that solution
Concentration is reduced, and experimental condition changes.If preparing the qualified test water of dissolved oxygen in advance, then examination is prepared with this test water
Test air in solution, operating process leak into or the release of oxygen-enriched dissolved oxygen in water can make the dissolved oxygen content of solution change, instead
Condition is answered also to be changed.Current technology is difficult to realize testing liquid Chinese medicine agent concentration and the synchronous accurate control of oxyty
System.
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-enriched corrosion testing apparatus,
Prepared by heavy-oxygen-enriched water, solution is prepared and corrosion test substep is carried out, it is to avoid is directly caused the solute by stripping to solution ventilation, is also kept away
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, maintain 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 processs of the test are by PLC
Automatically control, be performed fully automatic.
To reach above-mentioned purpose, the utility model is adopted the following technical scheme that：
A kind of full-automatic oxygen-enriched corrosion testing apparatus, including inert gas storage bottle 1, oxygen cylinder 2, preparing device 6, reactor 7
Demineralized water is filled in respirator 8, the preparing device 6 with sealing, certain water level is kept in sealing respirator 8, reactor 7 indicates quarter
Degree；Oxygen is accessed by the second pipeline L2 in the demineralized water of preparing device 6 in oxygen cylinder 2, and first is connected in inert gas storage bottle 1 and is managed
Road L1, the first L1 points of pipeline two-way, accesses the demineralized water ullage of preparing device 6, another a-road-through by the 3rd pipeline L3 all the way
The demineralized water crossed in the 7th pipeline L7 that the 4th pipeline L4 connections are passed through in the sealing water of respirator 8, preparing device 6 passes through the 5th pipeline
In L5 access reactors 7, reactor 7 is passed through the 7th pipeline L7 in the sealing water of respirator 8 by the 6th pipeline L6 connections, is located at
The 8th pipeline L8 sealed on the water level of respirator 8 is externally connected, experimental rig is in sealing and the state that do not build the pressure；Described
The first motor-driven valve K1, the second motor-driven valve are respectively arranged with one pipeline L1, the second pipeline L2, the 4th pipeline L4 and the 6th pipeline L6
Doser 4, the demineralized water of the preparing device 6 are set on K2, the 3rd motor-driven valve K3 and the 4th motor-driven valve K4, the 5th pipeline L5
The second thermocouple R2 and liquid level sensor Y and top are inserted in the middle insertion thermocouple R1 of oxygen electrode 3 and first, the reactor 7
It is hung with sample hooking device 5；Also include the control system being made up of PLC9, man machine operation interface 10 and display interface 11, it is described
Control system connect 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 thermocouple R1,
Second thermocouple R2, oxygen electrode 3 and liquid level sensor Y；The PLC9 receives the first thermocouple R1, the second thermocouple R2, liquid level
The signal that sensor Y and oxygen electrode 3 are transmitted, the first motor-driven valve is opened or closed according to the upper lower limit value of setting and time delay
K1, the second motor-driven valve K2, the 3rd motor-driven valve K3 and the 4th motor-driven valve K4, are prepared, solution is prepared, experiment with reaching control heavy-oxygen-enriched water
The purpose for carrying out and terminating.
The first thermocouple R1 and the second thermocouple R2 is stated to be respectively used to monitor the temperature in preparing device 6 and reactor 7, numerical value
Display interface 11 and PLC9 are respectively sent to signal.
The liquid level sensor Y is located in reactor 7, and for monitoring solution level, numerical value and signal are respectively sent to show
Show interface 11 and PLC9.
The oxygen electrode 3 is located in preparing device 6, and for detecting the dissolved oxygen content in preparing device 6, numerical value and signal are passed respectively
Deliver to display interface 11 and PLC9.
The man machine operation interface 10 is used to set test parameters, and test parameters includes dissolved oxygen content, solution level, experiment
Time and test temperature.
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 body
Using stainless steel or Plastic corrosion resistant material, its switch is automatically controlled by PLC9.
Gas in described inert gas storage bottle 1 is nitrogen or argon gas, for heavy-oxygen-enriched water to be added into reaction by preparing device 6
Device 7, it is to avoid cause oxyty to change with oxygen conveying heavy-oxygen-enriched water.
The material of the doser 4 and sample hooking device 5 is resistant material.
The preparing device 6, reactor 7 and sealing respirator 8 be column, spherical, triangle or square, using stainless steel,
Lucite, glass or Plastic corrosion resistant material are made；Described the first pipeline L1, the second pipeline L2, the 3rd pipeline L3,
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 Plastic corrosion resistant material.
The test method of described full-automatic oxygen-enriched corrosion testing apparatus, comprises the following steps
The first step is prepared for heavy-oxygen-enriched water：The demineralized water of ormal weight is added into preparing device 6, is set by man machine operation interface 10
Test period, test temperature, medicine liquid volume and dissolved oxygen content；PLC9 automatically controls the second motor-driven valve K2 of opening and the 3rd motor-driven valve
K3, oxygen is passed through in the demineralized water in preparing device 6 through the second pipeline L2, and oxygen is again through the 3rd pipeline L3, the 4th pipeline L4 and
Seven pipeline L7 enter sealing respirator 8, and gas finally is drained into outdoor by the 8th pipeline L8；
Second step is prepared for testing liquid：Oxygen electrode 3 measures oxygen-enriched water-soluble oxygen in preparing device 6 and reached after test requirements document,
PLC9 automatically controls closing the second motor-driven valve K2 and the 3rd motor-driven valve K3, to be checked to measure dissolved oxygen content and temperature in preparing device 6 and reach
To after setting value 3min, the first motor-driven valve K1 and the 4th motor-driven valve K4 is automatically opened up, inert gas is via the first pipeline L1 and
Three pipeline L3 enter preparing device 6, through the 5th pipeline L5 and doser 4 by the experiment in the heavy-oxygen-enriched water in preparing device 6 and doser 4
Medicament is added in reactor 7, and liquid level reaches the first motor-driven valve K1 of automatic closing and the 4th motor-driven valve after setting value in reactor 7
K4, completes testing liquid and prepares, on-test is carried out；When test period reaches setting value, heating system is closed automatically, concurrently
Go out off-test 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 (8000ppb-40000ppb) oxygen-enriched testing liquid, rich
Prepared by oxygen water and solution is prepared substep and carried out, it is to avoid directly to solution being passed through gas causes solute by stripping, also avoids spacious
Dissolved oxygen is caused to change with the qualified water configuration solution of dissolved oxygen in open loop border.All processes are completed in a system, system
All the time in sealing and free breathing state, it is ensured that system does not leak into air, maintain system dissolved oxygen and drug concentration stable.To molten
Oxygen is monitored in real time, realizes the accurate control to testing liquid dissolved oxygen and drug concentration.All processs of the test by PLC from
Dynamic control, is performed fully automatic.
Brief description of the drawings
Fig. 1 is the full-automatic oxygen-enriched corrosion testing apparatus structural representation of the utility model.
Embodiment
Further detailed is made to structural principle of the present utility model and operation principle with reference to the accompanying drawings and detailed description
Describe in detail bright.
Embodiment 1：
As described in Figure 1, a kind of full-automatic oxygen-enriched corrosion testing apparatus of the utility model embodiment, is mainly stored up by inert gas
Bottle 1 (being nitrogen cylinder), oxygen cylinder 2, oxygen electrode 3, doser 4, sample hooking device 5, preparing device 6, reactor 7, sealing respirator
8th, pipeline (L1-L8), motor-driven valve (K1-K4), thermocouple (R1, R2), liquid level sensor Y and PLC9 control system etc. are constituted.
All containers are square, and container, pipeline and motor-driven valve are made by PVC material, and inert gas is nitrogen.
The test method of the present embodiment corrosion testing apparatus, oxyty 12000ppb is set by man machine operation interface 10,
40 DEG C of test temperature, experimental rig is placed in 40 DEG C of waters bath with thermostatic control, sample hooking device by experimental period 4h, liquor capacity 600mL
5 hang corrosion of carbon steel test piece, and 1000mL demineralized waters are added into preparing device 6.The first step is prepared for heavy-oxygen-enriched water：PLC9, which is automatically controlled, to be beaten
The second motor-driven valve K2 and the 3rd motor-driven valve K3 is opened, oxygen is passed through in the demineralized water in preparing device 6 through the second pipeline L2, and gas is passed through again
3rd pipeline L3, the 4th pipeline L4 and the 7th pipeline L7 enter sealing respirator 8, and gas finally is drained into room by the 8th pipeline L8
Outside, dissolved oxygen content is stable between 12000ppb-12050ppb after 8min, automatic to close the second motor-driven valve K2 and the 3rd motor-driven valve
K3, dissolved oxygen and temperature reach setting value and keep stablizing after 3min, and the first motor-driven valve K1 and the 4th motor-driven valve K4 are automatically opened up,
Nitrogen enters preparing device 6 via the first pipeline L1 and the 3rd pipeline L3, through the 5th pipeline L5 and doser 4 by preparing device 6
Test medicine in heavy-oxygen-enriched water and doser 4 is added in reactor 7, when liquid level rises to 600mL in reactor 7, and the is closed automatically
One motor-driven valve K1 and the 4th motor-driven valve K4, completes testing liquid and prepares, on-test is carried out.When test period reaches 4h, from
It is dynamic to close heating system, and send off-test prompt tone.
Embodiment 2：
As described in Figure 1, a kind of full-automatic oxygen-enriched corrosion testing apparatus of the utility model and method, mainly by argon bottle 1, oxygen
Gas cylinder 2, oxygen electrode 3, doser 4, sample hooking device 5, preparing device 6, reactor 7, sealing respirator 8, pipeline (L1-L8), electricity
The compositions such as dynamic valve (K1-K4), thermocouple (R1, R2), liquid level sensor Y and PLC9 control system.
All containers are column, and material is lucite, and pipeline and motor-driven valve are made up of PVC material, and inert gas is argon
Gas.
The test method of the present embodiment corrosion testing apparatus, oxyty 25000ppb is set by man machine operation interface 10,
45 DEG C of test temperature, experimental rig is placed in 45 DEG C of waters bath with thermostatic control, sample hooking device by experimental period 4h, liquor capacity 800mL
5 hang 304 Corrosion of Stainless Steel test pieces, and 1000mL demineralized waters are added into preparing device 6.The first step is prepared for heavy-oxygen-enriched water：PLC9 is automatic
The second motor-driven valve K2 and the 3rd motor-driven valve K3 is opened in control, and oxygen is passed through in the demineralized water in preparing device 6 through the second pipeline L2, gas
Body enters sealing respirator 8 through the 3rd pipeline L3, the 4th pipeline L4 and the 7th pipeline L7 again, finally by the 8th pipeline L8 by gas
Drain into after outdoor, 20min dissolved oxygen content stable between 25000ppb-25050ppb, it is automatic to close the second motor-driven valve K2 and the
Three motor-driven valve K3, dissolved oxygen and temperature reach setting value and keep stablizing after 3min, the first motor-driven valve K1 and the 4th motor-driven valve K4
Automatically open up, nitrogen enters preparing device 6 via the first pipeline L1 and the 3rd pipeline L3, will be made through the 5th pipeline L5 and doser 4
The test medicine in heavy-oxygen-enriched water and doser 4 in standby device 6 is added in reactor 7, when liquid level rises to 800mL in reactor 7, from
It is dynamic to close the first motor-driven valve K1 and the 4th motor-driven valve K4, complete testing liquid and prepare, on-test is carried out.When test period reaches
During 4h, heating system is closed automatically, and send off-test prompt tone.
Embodiment 3：
As described in Figure 1, a kind of full-automatic oxygen-enriched corrosion testing apparatus of the utility model and method, mainly by nitrogen cylinder 1, oxygen
Gas cylinder 2, oxygen electrode 3, doser 4, sample hooking device 5, preparing device 6, reactor 7, sealing respirator 8, pipeline (L1-L8), electricity
The compositions such as dynamic valve (K1-K4), thermocouple (R1, R2), liquid level sensor Y and PLC9 control system.
All containers are spherical, and material is glass, and pipeline material is polytetrafluoroethylene (PTFE), and motor-driven valve material is 304 stainless steels,
Inert gas is nitrogen.
The test method of the present embodiment corrosion testing apparatus, oxyty 40000ppb is set by man machine operation interface 10,
50 DEG C of test temperature, experimental rig is placed in 50 DEG C of waters bath with thermostatic control, sample hooking device by experimental period 5h, liquor capacity 500mL
5 hang 316L Corrosion of Stainless Steel test pieces, and 1000mL demineralized waters are added into preparing device 6.The first step is prepared for heavy-oxygen-enriched water：PLC9 is automatic
The second motor-driven valve K2 and the 3rd motor-driven valve K3 is opened in control, and oxygen is passed through in the demineralized water in preparing device 6 through the second pipeline L2, gas
Body enters sealing respirator 8 through the 3rd pipeline L3, the 4th pipeline L4 and the 7th pipeline L7 again, finally by the 8th pipeline L8 by gas
Drain into after outdoor, 30min dissolved oxygen content stable between 39950ppb-40000ppb, it is automatic to close the second motor-driven valve K2 and the
Three motor-driven valve K3, dissolved oxygen and temperature reach setting value and keep stablizing after 3min, the first motor-driven valve K1 and the 4th motor-driven valve K4
Automatically open up, nitrogen enters preparing device 6 via the first pipeline L1 and the 3rd pipeline L3, will be made through the 5th pipeline L5 and doser 4
The test medicine in heavy-oxygen-enriched water and doser 4 in standby device 6 is added in reactor 7, when liquid level rises to 500mL in reactor 7, from
It is dynamic to close the first motor-driven valve K1 and the 4th motor-driven valve K4, complete testing liquid and prepare, on-test is carried out.When test period reaches
During 5h, heating system is closed automatically, and send off-test prompt tone.
Claims (5)
1. a kind of full-automatic oxygen-enriched corrosion testing apparatus, it is characterised in that：Including inert gas storage bottle (1), oxygen cylinder (2), system
Fill and protected in demineralized water, sealing respirator (8) in standby device (6), reactor (7) and sealing respirator (8), the preparing device (6)
Certain water level is held, reactor (7) indicates scale；Oxygen accesses removing for preparing device (6) by the second pipeline (L2) in oxygen cylinder (2)
In salt solution, the first pipeline (L1) is connected in inert gas storage bottle (1), the first pipeline (L1) point two-way passes through the 3rd pipeline all the way
(L3) the demineralized water ullage of access preparing device (6), another road is passed through sealing respirator (8) by the connection of the 4th pipeline (L4)
Demineralized water in the 7th pipeline (L7) in water, preparing device (6) is accessed in reactor (7) by the 5th pipeline (L5), reactor
(7) the 7th pipeline (L7) being passed through in sealing respirator (8) water is connected by the 6th pipeline (L6), positioned at sealing respirator (8)
The 8th pipeline (L8) on water level is externally connected, experimental rig is in sealing and the state that do not build the pressure；First pipeline
(L1) the first motor-driven valve (K1), the second electricity, are respectively arranged with the second pipeline (L2), the 4th pipeline (L4) and the 6th pipeline (L6)
Doser (4) is set on dynamic valve (K2), the 3rd motor-driven valve (K3) and the 4th motor-driven valve (K4), the 5th pipeline (L5), it is described
The second thermoelectricity of insertion in oxygen electrode (3) and the first thermocouple (R1), the reactor (7) is inserted in the demineralized water of preparing device (6)
Even (R2) and liquid level sensor (Y) and top is hung with sample hooking device (5)；Also include by PLC (9), man machine operation interface
(10) and the control system that constitutes of display interface (11), 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 thermocouple (R1), the second thermocouple (R2), oxygen electrode (3) and
Liquid level sensor (Y).
2. a kind of full-automatic oxygen-enriched corrosion testing apparatus according to claim 1, it is characterised in that：First motor-driven valve
(K1), the material of the valve body of the second motor-driven valve (K2), the 3rd motor-driven valve (K3) and the 4th motor-driven valve (K4) uses stainless steel or modeling
Expect class corrosion resistant material, its switch is automatically controlled by PLC (9).
3. a kind of full-automatic oxygen-enriched corrosion testing apparatus according to claim 1, it is characterised in that：Described inert gas
Gas in storage bottle (1) is nitrogen or argon gas, for heavy-oxygen-enriched water to be added into reactor (7) by preparing device (6), it is to avoid defeated with oxygen
Heavy-oxygen-enriched water is sent to cause oxyty to change.
4. a kind of full-automatic oxygen-enriched corrosion testing apparatus according to claim 1, it is characterised in that：The doser (4)
Material with sample hooking device (5) is resistant material.
5. a kind of full-automatic oxygen-enriched corrosion testing apparatus according to claim 1, it is characterised in that：The preparing device (6),
Reactor (7) and sealing respirator (8) be column, spherical, triangle or square, using stainless steel, lucite, glass or modeling
Material class corrosion resistant material is made；Described first pipeline (L1), the second pipeline (L2), the 3rd pipeline (L3), the 4th pipeline
(L4), the material of the 5th pipeline (L5), the 6th pipeline (L6), the 7th pipeline (L7) and the 8th pipeline (L8) uses stainless steel, glass
Glass or Plastic corrosion resistant material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720246111.XU CN206573456U (en) | 2017-03-14 | 2017-03-14 | A kind of full-automatic oxygen-enriched corrosion testing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720246111.XU CN206573456U (en) | 2017-03-14 | 2017-03-14 | A kind of full-automatic oxygen-enriched corrosion testing apparatus |
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| Publication Number | Publication Date |
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| CN206573456U true CN206573456U (en) | 2017-10-20 |
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ID=60054153
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720246111.XU Expired - Fee Related CN206573456U (en) | 2017-03-14 | 2017-03-14 | A kind of full-automatic oxygen-enriched corrosion testing apparatus |
Country Status (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108896474A (en) * | 2018-08-01 | 2018-11-27 | 中国石油天然气集团有限公司 | A kind of corrosion evaluating device and method of high temperature real-time monitoring dissolved oxygen concentration |
| CN109900628A (en) * | 2019-02-20 | 2019-06-18 | 河海大学 | A kind of experimental provision and corrosion evaluation method of simulating ocean environment corrosion |
-
2017
- 2017-03-14 CN CN201720246111.XU patent/CN206573456U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108896474A (en) * | 2018-08-01 | 2018-11-27 | 中国石油天然气集团有限公司 | A kind of corrosion evaluating device and method of high temperature real-time monitoring dissolved oxygen concentration |
| CN108896474B (en) * | 2018-08-01 | 2023-07-25 | 中国石油天然气集团有限公司 | Corrosion evaluation device and method for monitoring concentration of dissolved oxygen at high temperature in real time |
| CN109900628A (en) * | 2019-02-20 | 2019-06-18 | 河海大学 | A kind of experimental provision and corrosion evaluation method of simulating ocean environment corrosion |
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Granted publication date: 20171020 Termination date: 20180314 |