CN216696012U - Corrosion measuring device of thermal-insulated formula of accuse temperature - Google Patents
Corrosion measuring device of thermal-insulated formula of accuse temperature Download PDFInfo
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- CN216696012U CN216696012U CN202122526417.XU CN202122526417U CN216696012U CN 216696012 U CN216696012 U CN 216696012U CN 202122526417 U CN202122526417 U CN 202122526417U CN 216696012 U CN216696012 U CN 216696012U
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Abstract
The utility model provides a temperature-control heat-insulation type corrosion measuring device which comprises a temperature controller, wherein a corrosion reaction cavity is formed in the temperature controller, a reference electrode, an auxiliary electrode, a working electrode and a liquid level monitor are respectively arranged in the corrosion reaction cavity, a sealing cover is arranged at the top of the corrosion reaction cavity, and a heat-insulation layer is coated on the outer side of the corrosion reaction cavity. The utility model can realize heating or refrigeration temperature control, and can make the corrosion degree measurement under high temperature or low temperature environment more accurate; the device is internally provided with a liquid level monitor, and when the liquid level of the corrosive liquid is reduced to a preset value to influence the measurement accuracy, the temperature controller is automatically closed in an interlocking manner, so that the running stability of the device can be greatly improved; the corrosion measuring device is also provided with the heat insulation layer, so that the device is effective in energy conservation and electricity conservation, small in structure, convenient to disassemble and carry, and wide in application scene.
Description
Technical Field
The utility model belongs to the technical field of electrochemical corrosion measurement, and particularly relates to a temperature-control heat-insulation corrosion measuring device.
Background
The metal corrosion is the most extensive problem in industrial production and instrument and meter use, at present, the electrochemical test is the most mature method for judging the metal corrosion degree, and table 1 is the comparison of the common electrochemical methods.
At present, the electrochemical corrosion measurement of a metal substrate can only stay in a normal temperature state, a three-electrode method is generally adopted to be connected with an electrochemical workstation to directly measure the metal substrate in the normal temperature state, but electrochemical data in the normal temperature state does not have universality. However, the prior art often has the following problems: (1) only the corrosion degree measurement of the metal-based material under the normal temperature condition under the acidic/alkaline condition is considered, and the metal corrosion problem under the special temperature environment is not considered; (2) without a specific device, samples with proper sizes can be manually ground and are manually connected with an electrochemical workstation for field measurement through a five-neck flask or directly exposed and soaked in corrosive liquid, and the durability of metal-based materials with different sizes and shapes is difficult to accurately predict; (3) due to the limitation of the size of the test sample, only electrochemical tests can be carried out, and further mechanical property tests cannot be carried out.
For example, the prior art discloses a low-temperature electrochemical corrosion testing device, which comprises a testing workbench, a corrosion tank and a refrigerating device, wherein a sample chuck for positioning a test sample is arranged at the bottom of the corrosion tank, the corrosion tank tightly presses the sample chuck and the test sample therein on the testing workbench through a connecting and fixing device, a sample testing hole and a sealing ring are arranged at the center of the bottom of the corrosion tank, a reference electrode, an auxiliary electrode and a working electrode are also arranged in the corrosion tank, the lower ends of the reference electrode and the auxiliary electrode extend into a corrosion solution in the corrosion tank, the working electrode is arranged in the side wall of the corrosion tank, the lower end of the working electrode is contacted with the surface of the sample coating to be tested outside the sealing area of the sample testing hole, the upper ends of the reference electrode, the auxiliary electrode and the working electrode are connected with the electrode of an external electrochemical station, the heat exchange surface of the refrigerating device is arranged at the bottom of the sample chuck and is in close contact with the bottom of a sample to be tested. However, the device has the problems that the tightness is not high, only refrigeration can be carried out, the heating function is not provided, only dynamic refrigeration can be carried out to realize temperature control, heat preservation measures are not adopted, and the like. If, the prior art still discloses a testing arrangement of liquid to metal corrosivity, it is poor to mainly solve current moisturizing technique sensitivity, the single moisturizing volume is big, the fluctuation of thermostatic bath difference in temperature is big, the higher problem of cost, through adopting a testing arrangement of liquid to metal corrosivity, the main part of corrosion container cauldron is placed in the thermostatic bath, the temperature of thermostatic bath is controlled by thermostatic bath temperature controller, corrosion container cauldron top is opened has 3 at least mouths, one of them opening links to each other with the condenser pipe, metal specimen all hangs in every opening, automatic fluid infusion system is located the thermostatic bath, including horizontal float lever and feed liquor pipeline, can be used to in the test of liquid to metal corrosivity. However, the device has the problems that the corrosion degree can only be measured by adopting a weighing method, the accuracy is not sufficient, the test time is too long, the manpower and material resources are wasted, and the like.
For electrochemical corrosion measurement in a high-temperature or cold state, the corrosion solution is usually heated or reduced to a required temperature, and then the to-be-tested piece is directly placed in the required corrosion solution at room temperature for testing, but the corrosion solution is rapidly cooled or heated at room temperature, so that the temperature cannot be kept constant, and the accuracy of test data is directly influenced. Therefore, how to overcome the limitations of electrochemical corrosion measuring devices, to soak in the constant temperature state, especially soak in the high temperature or low temperature state under the metal matrix material of corrosive liquid realizes the accurate problem of measuring for the solution.
SUMMERY OF THE UTILITY MODEL
In view of the above problems, the present invention provides a temperature-controlled thermal insulation type corrosion measuring apparatus, which can accurately measure the corrosion degree of a metal substrate immersed in a corrosive liquid at a constant temperature, especially at a high temperature or a low temperature, by using a temperature-controlled thermal insulation type electrochemical corrosion measuring apparatus.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the device comprises a temperature controller, wherein a corrosion reaction cavity is formed in the temperature controller, a reference electrode, an auxiliary electrode, a working electrode and a liquid level monitor are arranged in the corrosion reaction cavity, and a sealing cover and a heat insulation layer are arranged at the top of the corrosion reaction cavity and cover the outer side of the corrosion reaction cavity.
Preferably, the temperature controller comprises a heating mechanism, a refrigerating mechanism and a temperature display screen.
Preferably, the heating mechanism comprises a heating device display screen and a heating control switch, and the heating device display screen is electrically connected with the heating control switch.
Preferably, the refrigeration mechanism comprises a refrigeration control display screen and a refrigeration control switch, and the refrigeration control display screen is electrically connected with the refrigeration control switch.
Preferably, the device further comprises a controller, and the liquid level monitor and the temperature controller are respectively electrically connected with the controller.
Preferably, the top of the corrosion reaction chamber is further provided with a sealing gasket, and the sealing gasket is arranged below the sealing cover.
Preferably, the positions of the corrosion reaction cavity corresponding to the reference electrode, the auxiliary electrode and the working electrode are all provided with a separation plate.
Preferably, the working electrode comprises a working electrode holder and a metal sheet, the metal sheet being held in the working electrode holder.
Preferably, the working electrode is a metal rod or strip.
Preferably, the bottom of the temperature controller is provided with a support pad.
The utility model has the beneficial effects that: the temperature control of heating or refrigeration can be realized, and the corrosion degree measurement under the high-temperature or low-temperature environment can be more accurate; the device is internally provided with a liquid level monitor, and when the liquid level of the corrosive liquid is reduced to a preset value to influence the measurement accuracy, the temperature controller is closed, so that the running stability of the device can be greatly improved; the device is provided with the heat insulation layer, so that the device is effective in energy conservation and electricity conservation, small in structure, convenient to detach and carry, and wide in application scene.
Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a schematic view showing a corrosion measuring apparatus according to example 1 of the present invention;
FIG. 2 is a schematic view showing a corrosion measuring apparatus according to example 2 of the present invention;
in the figure: 1. a sealing cover; 2. a heat-insulating layer; 3. heat preservation filler; 4. fixing the knob; 5. a reference electrode; 6. a partition plate; 7. a heating device display screen; 8. a heating control switch; 9. a support pad; 10. a temperature display screen; 11. a gasket; 12. corroding the reaction cavity; 13. an auxiliary electrode; 14. a working electrode holder; 15. a button; 16. a liquid level monitor; 17. a refrigeration control display screen; 18. a refrigeration control switch; 19. a temperature controller; 20. a metal rod.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
A temperature-control heat-insulation type corrosion measuring device is shown in figure 1 and comprises a temperature controller 19 and a controller, wherein a supporting pad 9 is arranged at the bottom of the temperature controller 19, a corrosion reaction cavity 12 is formed in the temperature controller 19, a reference electrode 5, an auxiliary electrode 13, a working electrode and a liquid level monitor 16 are respectively arranged in the corrosion reaction cavity 12, the reference electrode 5, the auxiliary electrode 13 and the working electrode are respectively connected with an electrochemical workstation through leads, a sealing cover 1 and a sealing gasket 11 are arranged at the top of the corrosion reaction cavity 12, the sealing gasket 11 is arranged below the sealing cover 1, a layer of heat-insulating layer 2 is coated on the outer side of the corrosion reaction cavity 12, a cavity is arranged in the heat-insulating layer 2, and heat-insulating fillers 3 are filled in the cavity; the positions of the corrosion reaction cavity 12 corresponding to the reference electrode 5, the auxiliary electrode 13 and the working electrode are all provided with a partition plate 6, the upper end of the partition plate 6 is provided with a clamp for fixing the reference electrode 5, the auxiliary electrode 13 and the working electrode, and the clamp is provided with a fixing knob 4 for opening and closing; the working electrode comprises a working electrode holder 14 and a metal sheet, a button 15 for controlling clamping and opening and closing is arranged at the holding end of the working electrode holder 14, and the metal sheet is held in the working electrode holder 14; the controller is arranged in the temperature controller 19, and the liquid level monitor 16 and the temperature controller 19 are respectively electrically connected with the controller. The purpose of the pad 9 is on the one hand to facilitate the movement and on the other hand to prevent overheating from damaging the table.
Further, the temperature controller 19 comprises a temperature display screen 10, a heating device display screen 7, a heating control switch 8, a refrigeration control display screen 17 and a refrigeration control switch 18, the heating device display screen 7 is electrically connected with the heating control switch 8, and the refrigeration control display screen 17 is electrically connected with the refrigeration control switch 18.
The working principle of the temperature-control heat-insulation corrosion measuring device of the embodiment is as follows: before the test is started, the sealing cover 1 is opened (the sealing cover 1 is fixedly connected with the sealing gasket 11), corrosive liquid is poured into the corrosion reaction cavity 12, the metal to be tested is cut into a metal sheet with a proper size, the working electrode holder 14 is opened and closed through the button 15, the metal sheet is held on the working electrode holder 14, and the sealing cover 1 is tightly covered. The top ends of the reference electrode 5, the auxiliary electrode 13 and the working electrode clamping tool are respectively connected with an electrochemical workstation. Open heating control switch 8 (or refrigeration control switch 18), set for required temperature on heating device display screen 7 (or refrigeration control display screen 17), observe temperature display screen 10 and heat the corrosive liquid to required temperature, utilize electrochemical workstation to carry out the electrochemistry test, realize the accurate measurement of corrosivity to the metal substrate who soaks in the corrosive liquid under the high temperature state. During the test, the liquid level of the electrolyte (i.e. the corrosive liquid) in the corrosion reaction chamber 12 can be monitored in real time by the liquid level monitor 16, if the liquid level in the corrosion reaction chamber 12 is too low, an alarm and interlocking mechanism is triggered, and the temperature controller 19 is automatically turned off by the controller.
Example 2
A temperature-control heat-insulation type corrosion measuring device is shown in figure 2 and comprises a temperature controller 19 and a controller, wherein a supporting pad 9 is arranged at the bottom of the temperature controller 19, a corrosion reaction cavity 12 is formed in the temperature controller 19, a reference electrode 5, an auxiliary electrode 13, a working electrode and a liquid level monitor 16 are respectively arranged in the corrosion reaction cavity 12, the reference electrode 5, the auxiliary electrode 13 and the working electrode are respectively connected with an electrochemical workstation through leads, a sealing cover 1 and a sealing gasket 11 are arranged at the top of the corrosion reaction cavity 12, the sealing gasket 11 is arranged below the sealing cover 1, a layer of heat-insulation layer 2 is coated on the outer side of the corrosion reaction cavity 12, a cavity is formed in the heat-insulation layer 2, and heat-insulation fillers 3 are filled in the cavity; the positions of the corrosion reaction cavity 12 corresponding to the reference electrode 5, the auxiliary electrode 13 and the working electrode are all provided with a partition plate 6, the upper end of the partition plate 6 is provided with a clamp for fixing the reference electrode 5, the auxiliary electrode 13 and the working electrode, and the clamp is provided with a fixing knob 4 for opening and closing; the working electrode is a metal strip or rod 20; the controller is arranged in the temperature controller 19, and the liquid level monitor 16 and the temperature controller 19 are respectively electrically connected with the controller. The purpose of the pad 9 is on the one hand to facilitate the movement and on the other hand to prevent overheating from damaging the table.
Further, the temperature controller 19 comprises a temperature display screen 10, a heating device display screen 7, a heating control switch 8, a refrigeration control display screen 17 and a refrigeration control switch 18, the heating device display screen 7 is electrically connected with the heating control switch 8, and the refrigeration control display screen 17 is electrically connected with the refrigeration control switch 18.
The working principle of the temperature-control heat-insulation corrosion measuring device of the embodiment is as follows:
before the test is started, the sealing cover 1 is opened (the sealing cover 1 is fixedly connected with the sealing gasket 11), corrosive liquid is poured into the corrosion reaction cavity 12, metal rods 20 (metal strips can be used, and metal rods are selected exemplarily) with suitable sizes are cut from metal to be tested, wires are welded at the top ends, the metal rods 20 or the metal strips are fixed on the partition plate 6 through the fixing knobs 4, and the sealing cover 1 is tightly covered. The top ends of the reference electrode 5, the auxiliary electrode 13 and the working electrode are respectively connected with an electrochemical workstation. The heating control switch 8 (or the refrigeration control switch 18) is turned on, the required temperature is set on the heating device display screen 7 (or the refrigeration control display screen 17), the temperature display screen 10 is observed to heat the corrosive liquid to the required temperature, the electrochemical workstation is utilized to carry out electrochemical test, and the metal substrate soaked in the corrosive liquid in a high-temperature state is subjected to accurate measurement of the corrosion degree. During the test, the liquid level of the electrolyte (i.e. the corrosive liquid) in the corrosion reaction chamber 12 can be monitored in real time by the liquid level monitor 16, if the liquid level in the corrosion reaction chamber 12 is too low, an alarm and interlocking mechanism is triggered, and the temperature controller 19 is automatically turned off by the controller.
In conclusion, the device can realize heating or refrigerating temperature control, and can enable the corrosion degree measurement under high-temperature or low-temperature environment to be more accurate; the device is internally provided with a liquid level monitor, and when the liquid level of the corrosive liquid is reduced to a preset value to influence the measurement accuracy and even damage the device (the liquid level is too low, and the device is damaged due to dry burning), the temperature controller is closed, so that the running stability of the device can be greatly improved; the device is provided with the heat insulation layer, so that the energy and the electricity are effectively saved, the structure is small and exquisite, the disassembly and the carrying are convenient, and the application scene is wide; the working electrode part can directly replace a metal sheet with a metal bar connecting lead, can perform tensile test on the metal bar without machining, further tests the mechanical property of the metal bar, and is more flexible and wide in use.
TABLE 1 comparison of conventional electrochemical methods
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a corrosion measuring device of thermal-insulated formula of accuse temperature, its characterized in that, includes the thermostat, the corrosion reaction chamber has been seted up on the thermostat, be equipped with reference electrode, auxiliary electrode, working electrode and liquid level monitor in the corrosion reaction chamber, the top in corrosion reaction chamber is equipped with sealed lid, the outside cladding one deck heat preservation in corrosion reaction chamber.
2. The temperature-controlled, thermally insulated corrosion measurement device of claim 1, wherein the temperature controller comprises a heating mechanism, a cooling mechanism, and a temperature display screen.
3. The temperature-controlled, thermally insulated corrosion measurement device of claim 2, wherein the heating mechanism comprises a heating device display and a heating control switch, the heating device display and the heating control switch being electrically connected.
4. The temperature-controlled and heat-insulated corrosion measurement device according to claim 2, wherein the refrigeration mechanism comprises a refrigeration control display screen and a refrigeration control switch, and the refrigeration control display screen and the refrigeration control switch are electrically connected.
5. The temperature-controlled, thermally insulated corrosion measurement device of claim 1, further comprising a controller, wherein the level monitor and the temperature controller are electrically connected to the controller, respectively.
6. The temperature-controlled heat-insulated corrosion measuring device according to claim 1, wherein a sealing gasket is further disposed on the top of the corrosion reaction chamber, and the sealing gasket is disposed below the sealing gasket.
7. The temperature-controlled and heat-insulated corrosion measuring device according to claim 1, wherein a separator is disposed in the corrosion reaction chamber at a position corresponding to the reference electrode, the auxiliary electrode and the working electrode.
8. The temperature-controlled thermally insulated corrosion measurement device of claim 1, wherein said working electrode comprises a working electrode holder and a metal sheet, said metal sheet being held within said working electrode holder.
9. The temperature-controlled and thermally insulated corrosion measurement device of claim 1, wherein the working electrode is a metal rod or strip.
10. The apparatus according to any one of claims 1 to 9, wherein a support pad is provided at the bottom of the temperature controller.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122526417.XU CN216696012U (en) | 2021-10-20 | 2021-10-20 | Corrosion measuring device of thermal-insulated formula of accuse temperature |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122526417.XU CN216696012U (en) | 2021-10-20 | 2021-10-20 | Corrosion measuring device of thermal-insulated formula of accuse temperature |
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| CN216696012U true CN216696012U (en) | 2022-06-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115855653A (en) * | 2022-12-15 | 2023-03-28 | 太原理工大学 | Corrosion electrochemistry testing arrangement of controllable temperature |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115855653A (en) * | 2022-12-15 | 2023-03-28 | 太原理工大学 | Corrosion electrochemistry testing arrangement of controllable temperature |
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