CN214041024U - Metal corrosion rate measuring device based on hydrogen evolution method - Google Patents
Metal corrosion rate measuring device based on hydrogen evolution method Download PDFInfo
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- CN214041024U CN214041024U CN202022782025.5U CN202022782025U CN214041024U CN 214041024 U CN214041024 U CN 214041024U CN 202022782025 U CN202022782025 U CN 202022782025U CN 214041024 U CN214041024 U CN 214041024U
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- hydrogen evolution
- infrared
- plate
- corrosion rate
- metal corrosion
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 80
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 80
- 239000001257 hydrogen Substances 0.000 title claims abstract description 80
- 238000005260 corrosion Methods 0.000 title claims abstract description 35
- 230000007797 corrosion Effects 0.000 title claims abstract description 35
- 239000002184 metal Substances 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 27
- 239000007788 liquid Substances 0.000 claims abstract description 38
- 238000001514 detection method Methods 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000005259 measurement Methods 0.000 abstract description 3
- 239000007769 metal material Substances 0.000 description 8
- 238000009434 installation Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000004580 weight loss Effects 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a metal corrosion rate survey device based on hydrogen evolution method, including base, casing, hydrogen evolution device and infrared detection device, the casing includes four lateral walls, the casing is fixed on the base, be provided with the basin on the base, the basin bottom is provided with the hot plate, hydrogen evolution device includes corrosive liquid container, hydrogen evolution pipe, funnel and sample rack, the corrosive liquid container is placed in the basin, the sample rack is placed in corrosive liquid container bottom, the funnel back-off is in the corrosive liquid container, hydrogen evolution pipe back-off is on the funnel, infrared detection device includes infrared emission board and infrared receiver plate, infrared emission board and infrared receiver plate symmetry respectively set up in the both sides of hydrogen evolution pipe. The device adopts a hydrogen evolution method and utilizes an infrared detection device to automatically monitor the liquid level height in the hydrogen evolution pipe, thereby obtaining the volume of hydrogen in the hydrogen evolution pipe, reducing errors caused by artificial reading and improving the measurement precision.
Description
Technical Field
The utility model relates to a metal material corrodes and protects technical field, concretely relates to metal corrosion rate survey device based on hydrogen evolution method.
Background
The metal material is widely applied in the mechanical manufacturing industry due to good strength, plasticity, toughness and the like, the metal material can be damaged by the action of surrounding media in the using process, namely, metal corrosion occurs, the metal corrosion is one of the main reasons of metal material failure, during corrosion, chemical or electrochemical multiphase reaction occurs on the interface of metal, so that the metal is converted into an oxidation (ion) state, various mechanical properties of the metal material can be obviously reduced, the geometric shape of a metal component is damaged, the abrasion among parts is increased, the physical properties of electricity, optics and the like are deteriorated, the service life of equipment is shortened, and even disastrous accidents such as fire, explosion and the like are caused, so the metal material corrosion becomes a research focus.
In metal corrosion research, the corrosion rate is an important index for measuring the corrosion resistance of metal materials and is also a main basis for evaluating the corrosion resistance of metal materials. At present, the metal corrosion rate measuring methods mainly include a weight loss measuring method and a hydrogen evolution measuring method, the weight loss measuring method is generally regarded as the most basic and most reliable corrosion rate evaluation method, but the weight loss measuring method cannot measure the change condition of the corrosion rate of a metal sample along with the soaking time, and the hydrogen evolution measuring method is widely applied due to the advantages of continuous monitoring and the like. However, in the continuous monitoring process of the existing hydrogen evolution method measuring device, data needs to be read and recorded at fixed time and fixed point, the workload is large, and errors exist in manual data reading, so that the accuracy of the experimental result is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a metal corrosion rate survey device based on hydrogen evolution method, the device adopt hydrogen evolution method to utilize infrared detection device, the luminousness of infrared ray is different when seeing through different media, and the liquid level in the hydrogen evolution pipe is calculated out, but the liquid level in the automatic monitoring hydrogen evolution pipe, thereby obtain the volume of hydrogen in the hydrogen evolution pipe, reduced the error that artificial reading caused, improved the measurement accuracy.
The utility model discloses a realize above-mentioned purpose, the technical solution who adopts is:
the utility model provides a metal corrosion rate survey device based on hydrogen evolution method, includes base, casing, hydrogen evolution device and infrared detection device, and the casing includes four lateral walls, the casing is fixed on the base, the inside hot plate that is provided with of base, be provided with the basin on the base, the hydrogen evolution device includes corrosive liquid container, hydrogen evolution pipe, funnel and sample rack, the corrosive liquid container is placed in the basin, the sample rack is placed in corrosive liquid container bottom, the funnel back-off is in the corrosive liquid container, hydrogen evolution pipe back-off is on the funnel, infrared detection device includes infrared emission board and infrared receiver board, infrared emission board and infrared receiver board symmetry respectively set up in the both sides of hydrogen evolution pipe.
Preferably, the sample placing frame is flat cylindrical, a central hole and a plurality of round holes surrounding the central hole are formed in the sample placing frame, and the experimental sample is placed in the central hole of the sample placing frame.
Preferably, the width of the infrared emission plate and the infrared receiving plate is consistent with the diameter of the hydrogen evolution pipe, and the centers of the infrared emission plate, the hydrogen evolution pipe and the infrared receiving plate are positioned on the same horizontal line.
Preferably, the casing top is provided with the mounting panel corresponding with infrared emission board and infrared ray receiver panel position, the top at casing front and back lateral wall is fixed to the mounting panel, be provided with the locating hole on the mounting panel, be provided with the constant head tank corresponding with the locating hole on the base, the constant head tank is "U" type, infrared emission board and infrared ray receiver panel pass through locating hole and constant head tank vertical fixation between base and casing.
Preferably, the water tank, the hydrogen evolution device and the infrared detection device are respectively provided with a plurality of groups.
Preferably, the infrared transmitting plate and the infrared receiving plate are both connected with a computer through signal lines.
Preferably, one side of base is provided with hot plate control switch and display, install temperature sensor on the hot plate, temperature sensor passes through the signal line and is connected with the display.
The utility model has the advantages that:
(1) the metal corrosion rate measuring device adopts a hydrogen evolution method, utilizes an infrared detection device, and calculates the liquid level height in the hydrogen evolution pipe according to different light transmittance of infrared rays when the infrared rays penetrate through different media, can automatically monitor the liquid level height in the hydrogen evolution pipe, not only reduces the workload of experimenters for regularly and fixedly reading and recording data, but also reduces errors caused by artificial reading, and improves the measuring precision;
(2) in the device, a plurality of groups of water tanks, hydrogen evolution devices and infrared detection devices can be arranged, a plurality of same metal samples are measured under the same corrosion environment, and a plurality of groups of data are monitored and analyzed, so that the measurement accuracy is improved; or the corrosion rates of different metal samples in different corrosion environments are measured, and the working efficiency is improved.
Drawings
In order to 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 for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a schematic view of the structure of the hydrogen evolving apparatus;
fig. 4 is a schematic structural view of the sample holder.
The figure is marked with: 1. a base; 2. a housing; 3. a water tank; 4. heating plates; 5. a container for corrosive liquid; 6. a hydrogen evolution pipe; 7. a funnel; 8. an infrared emission plate; 9. an infrared receiving plate; 10. mounting a plate; 11. positioning holes; 12. positioning a groove; 13. a heating plate control switch; 14. a display; 15. and (4) placing a sample rack.
Detailed Description
The utility model provides a metal corrosion rate survey device based on hydrogen evolution method, for making the utility model discloses a purpose, technical scheme and effect are clearer, more clear and definite, it is following right the utility model discloses further detailed description. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The present invention will be described in detail with reference to the accompanying drawings:
example 1
Referring to fig. 1 to 4, a metal corrosion rate measuring device based on a hydrogen evolution method comprises a base 1, a shell 2, a hydrogen evolution device and an infrared detection device, wherein the shell 2 comprises four side walls, the shell 2 is fixed on the base 1, the base 1 is provided with 3 water tanks 3, the hydrogen evolution device and the infrared detection device are respectively provided with 3 groups, and the bottom of each water tank 3 is provided with a heating plate 4.
The hydrogen evolution device comprises a corrosive liquid container 5, a hydrogen evolution pipe 6, a funnel 7 and a sample placing frame 15, the corrosive liquid container 5 is placed in a water tank 3, the sample placing frame 15 is placed at the bottom of the corrosive liquid container 5, the funnel 7 is reversely buckled in the corrosive liquid container 5, the hydrogen evolution pipe 6 is reversely buckled on the funnel 7, one end of the hydrogen evolution pipe 6 is provided with a glass plug, the hydrogen evolution pipe 6 can specifically adopt a burette, the sample placing frame 15 is flat and cylindrical, a central hole and a plurality of round holes surrounding the central hole are formed in the sample placing frame 15, the vertical inclined clamp of the experimental sample is placed in the central hole of the sample placing frame 15, and all surfaces of the experimental sample can be contacted with the corrosive liquid.
The infrared detection device comprises an infrared emission plate 8 and an infrared receiving plate 9, the infrared emission plate 8 and the infrared receiving plate 9 are respectively and symmetrically arranged at two sides of the hydrogen evolution pipe 6, the infrared emission plate 8 emits infrared rays towards one side of the hydrogen evolution pipe 6 along the horizontal direction, the infrared receiving plate 9 receives the infrared rays penetrating through the hydrogen evolution pipe 6 from the other side of the hydrogen evolution pipe 6, the widths of the infrared emission plate 8 and the infrared receiving plate 9 are consistent with the diameter of the hydrogen evolution pipe 6, and the centers of the infrared emission plate 8, the hydrogen evolution pipe 6 and the infrared receiving plate 9 are positioned on the same horizontal line.
In addition, in order to facilitate the installation and fixation of the infrared emission plate 8 and the infrared receiving plate 9, an installation plate 10 corresponding to the positions of the infrared emission plate 8 and the infrared receiving plate 9 is arranged at the top of the casing 2, the installation plate 10 is fixed at the top of the front and rear side walls of the casing 2, a positioning hole 11 is arranged on the installation plate 10, a positioning groove 12 corresponding to the positioning hole 11 is arranged on the base 1, the positioning groove 12 is U-shaped, and the end parts of the two ends of the infrared emission plate 8 and the infrared receiving plate 9 can be clamped in the positioning hole 11 and the positioning groove 12 to be vertically fixed between the base 1 and the casing 2.
The infrared transmitting plate 8 and the infrared receiving plate 9 are both connected with a computer through signal lines and photoelectric converters, the infrared transmitting plate 8 and the infrared receiving plate 9 are powered by a power supply, an infrared control switch is arranged between the infrared transmitting plate 8 and the infrared receiving plate 9 and the power supply, the infrared control switch is connected with the computer through a controller, the computer receives infrared transmitting intensity of the infrared transmitting plate 8 and infrared transmitting intensity data of the infrared receiving plate 9, and opening and closing of the infrared control switch are automatically controlled according to a set program. Because the light transmittance of the part with liquid and the part without liquid are different, the infrared receiving plate 9 senses that the transmission intensity of the infrared rays received by the upper part and the lower part of the infrared receiving plate is different, a computer automatically identifies the height of the different transmission intensity points on the infrared receiving plate 9, the height is a gas-liquid boundary, when the infrared transmitting plate 8, the infrared receiving plate 9 and the hydrogen evolution pipe 6 are installed, the top transmitting and receiving parts of the infrared transmitting plate 8 and the infrared receiving plate 9 are positioned on the same horizontal line with the liquid level when the hydrogen evolution pipe 6 is filled with the liquid, the gas-liquid boundary height is the liquid level height of the hydrogen evolution pipe, so that the volume of the hydrogen in the hydrogen evolution pipe 6 is obtained, and the corrosion degree of the metal sample is calculated and analyzed according to the volume change of the hydrogen. In the experimental process, the working time of the infrared transmitting plate 8 and the infrared receiving plate 9 can be preset on a computer, for example, the infrared transmitting plate and the infrared receiving plate are opened once every 2h, and the working time is 30s each time, so that the change rule of the corrosion degree of the metal sample along with the time, namely the metal corrosion rate, can be obtained.
In this embodiment, one side of base 1 is provided with hot plate control switch 13 and display 14, and hot plate control switch 13 sets up 3 knobs, controls the heating temperature of 3 hot plates 4 respectively, can set for different temperatures according to the experimental demand, and all installs temperature sensor on 3 hot plates 4 to be connected temperature sensor passing signal line and display 14, display 14 shows the temperature of 3 hot plates 4.
The operation process of the device for measuring the metal corrosion rate based on the hydrogen evolution method provided by the embodiment is as follows: (1) firstly, respectively fixing 3 groups of infrared transmitting plates and infrared receiving plates in positioning holes and positioning grooves to enable the infrared transmitting plates and the infrared receiving plates to be vertically fixed between a base and a shell, connecting the infrared transmitting plates and the infrared receiving plates with a computer through signal lines and a photoelectric converter, and setting the working time of the infrared transmitting plates and the infrared receiving plates on the computer; (2) then adding water into the 3 water tanks, opening a heating plate control switch, when the temperature of a heating plate reaches a set temperature, putting a corrosive liquid container filled with corrosive liquid into the water tanks from the top of the shell, vertically and obliquely fixing an experimental sample on a sample placing frame, placing the experimental sample and the sample placing frame into the corrosive liquid container, then inversely buckling the funnel on the corrosive liquid container, inversely buckling a hydrogen evolution pipe on the funnel, opening a glass plug of the hydrogen evolution pipe by adopting a burette, vacuumizing the interior of the hydrogen evolution pipe by using an air extraction cylinder, fully absorbing the corrosive liquid into the hydrogen evolution pipe, and then closing the glass plug; and (3) controlling the working time of the infrared transmitting plate and the infrared receiving plate by the computer according to a set program, wherein the infrared transmitting plate transmits infrared rays, the infrared receiving plate receives the infrared rays penetrating through the hydrogen evolution pipe from the other side of the hydrogen evolution pipe, the computer monitors the intensity of the infrared transmitted by each infrared transmitting plate and the intensity of the infrared received by each infrared receiving plate, the computer automatically identifies the height of different points of the transmission intensity received by the upper part and the lower part of the infrared receiving plate, the height is a gas-liquid boundary, the liquid level height of the hydrogen evolution pipe is determined according to the height of the gas-liquid boundary, the volume of hydrogen in the hydrogen evolution pipe is obtained, and the corrosion rate of a metal sample is obtained.
In the description of the present invention, it is to be understood that the terms "top", "bottom", "front", "back", and the like refer to orientations or positional relationships based on those shown in the drawings, and are used only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
The parts not mentioned in the utility model can be realized by adopting or using the prior art for reference.
Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and the changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also belong to the protection scope of the present invention.
Claims (7)
1. The metal corrosion rate measuring device based on the hydrogen evolution method is characterized by comprising a base (1), a shell (2), a hydrogen evolution device and an infrared detection device, wherein the shell (2) comprises four side walls, the shell (2) is fixed on the base (1), a water tank (3) is arranged on the base (1), a heating plate (4) is arranged at the bottom of the water tank (3), the hydrogen evolution device comprises a corrosive liquid container (5), a hydrogen evolution pipe (6), a funnel (7) and a sample placing frame (15), the corrosive liquid container (5) is placed in the water tank (3), the sample placing frame (15) is placed at the bottom of the corrosive liquid container (5), the funnel (7) is reversely buckled in the corrosive liquid container (5), the hydrogen evolution pipe (6) is reversely buckled on the funnel (7), the infrared detection device comprises an infrared emission plate (8) and an infrared receiving plate (9), the infrared transmitting plate (8) and the infrared receiving plate (9) are respectively and symmetrically arranged at two sides of the hydrogen evolution pipe (6).
2. The device for measuring the metal corrosion rate based on the hydrogen evolution method according to claim 1, wherein the sample holder (15) is in a flat cylindrical shape, and the sample holder (15) is provided with a central hole and a plurality of circular holes surrounding the central hole.
3. The apparatus for measuring metal corrosion rate according to claim 1, wherein the width of the infrared emission plate (8) and the infrared receiving plate (9) is equal to the diameter of the hydrogen evolution tube (6), and the centers of the infrared emission plate (8), the hydrogen evolution tube (6), and the infrared receiving plate (9) are located on the same horizontal line.
4. The device for measuring the metal corrosion rate based on the hydrogen evolution method according to claim 1, wherein a mounting plate (10) corresponding to the positions of the infrared emission plate (8) and the infrared receiving plate (9) is arranged at the top of the casing (2), the mounting plate (10) is fixed at the top of the front and rear side walls of the casing (2), the mounting plate (10) is provided with a positioning hole (11), the base (1) is provided with a positioning groove (12) corresponding to the positioning hole (11), the positioning groove (12) is U-shaped, and the infrared emission plate (8) and the infrared receiving plate (9) are vertically fixed between the base (1) and the casing (2) through the positioning hole (11) and the positioning groove (12).
5. The apparatus for measuring metal corrosion rate according to claim 1, wherein the water tank (3), the hydrogen-evolving means and the infrared detection means are provided in a plurality of groups.
6. The apparatus for measuring metal corrosion rate based on hydrogen evolution method according to claim 1, wherein the infrared emitting plate (8) and the infrared receiving plate (9) are connected to a computer through signal lines and photoelectric converters.
7. The device for measuring the metal corrosion rate based on the hydrogen evolution method according to claim 1, wherein a heating plate control switch (13) and a display (14) are arranged on one side of the base (1), a temperature sensor is arranged on the heating plate (4), and the temperature sensor is connected with the display (14) through a signal wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022782025.5U CN214041024U (en) | 2020-11-27 | 2020-11-27 | Metal corrosion rate measuring device based on hydrogen evolution method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022782025.5U CN214041024U (en) | 2020-11-27 | 2020-11-27 | Metal corrosion rate measuring device based on hydrogen evolution method |
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| Publication Number | Publication Date |
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| CN214041024U true CN214041024U (en) | 2021-08-24 |
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| CN202022782025.5U Expired - Fee Related CN214041024U (en) | 2020-11-27 | 2020-11-27 | Metal corrosion rate measuring device based on hydrogen evolution method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114529548A (en) * | 2022-04-24 | 2022-05-24 | 南通重矿金属新材料有限公司 | Mechanical part stress corrosion detection method |
-
2020
- 2020-11-27 CN CN202022782025.5U patent/CN214041024U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114529548A (en) * | 2022-04-24 | 2022-05-24 | 南通重矿金属新材料有限公司 | Mechanical part stress corrosion detection method |
| CN114529548B (en) * | 2022-04-24 | 2022-07-15 | 南通重矿金属新材料有限公司 | Mechanical part stress corrosion detection method |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210824 |
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| CF01 | Termination of patent right due to non-payment of annual fee |