CN110567829A - Pipeline type experimental device for simulating seawater erosion corrosion - Google Patents
Pipeline type experimental device for simulating seawater erosion corrosion Download PDFInfo
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- CN110567829A CN110567829A CN201910839245.6A CN201910839245A CN110567829A CN 110567829 A CN110567829 A CN 110567829A CN 201910839245 A CN201910839245 A CN 201910839245A CN 110567829 A CN110567829 A CN 110567829A
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- pipeline
- outlet
- communicated
- water inlet
- branch
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/006—Investigating resistance of materials to the weather, to corrosion, or to light of metals
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/56—Investigating resistance to wear or abrasion
- G01N3/567—Investigating resistance to wear or abrasion by submitting the specimen to the action of a fluid or of a fluidised material, e.g. cavitation, jet abrasion
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0005—Repeated or cyclic
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0236—Other environments
- G01N2203/024—Corrosive
Abstract
the invention discloses a pipeline type experimental device for simulating seawater scouring corrosion, which comprises: the water inlet pipe is connected with the water outlet pipe in a detachable mode, and the water inlet pipe is communicated with the water outlet pipe in a connected state; the second end of the communicating pipeline is detachably connected with the water outlet pipeline, and when the communicating pipeline is in a connected state, the communicating pipeline is communicated with the water outlet pipeline. Like this, through the pipeline that can dismantle the connection to form the suitable quantity as required and erode the return circuit, thereby enlarge experiment application scope, and to different kinds of material sample wafer, can place respectively in the difference erodees the return circuit, with erode the corruption research simultaneously, the sample of being convenient for is horizontal comparison under equal experimental condition, the sample corrosion situation under the different speed of erodeing of research that can also be comparatively convenient.
Description
Technical Field
The invention belongs to the technical field of corrosion simulation experiments, and particularly relates to a pipeline type experiment device for simulating seawater erosion corrosion.
Background
with the increasing exhaustion of fresh water resources on the earth, seawater desalination devices are receiving increasing attention from people. The material service environment of the seawater desalination device is very harsh, the main structural material of the seawater desalination device is mainly a stainless steel or carbon steel plus special coating processing scheme at present, and part of components are made of nonferrous metals. The erosion corrosion is the most common corrosion form of materials in the device, but due to the particularity of the service environment, efficient and accurate research is difficult to develop. Therefore, the device and the research method for designing the erosion corrosion device capable of accurately simulating the materials in the seawater desalination device have very obvious economic value and social significance for researching the corrosion form and mechanism of the materials, improving the corrosion resistance of the materials and prolonging the service time of the materials.
At present, two common erosion corrosion research methods are provided, namely a pipeline method for embedding a sample in a single-channel plastic pipe and introducing a medium to research and a hanging method for hanging research in an actual service environment inside the device. The main disadvantages of the single-channel pipeline method are: the quantity of samples which can be researched at a time is small, so that parallel research among the samples is not facilitated, and mutual interference is easy to generate when all the samples are placed in the same pipeline. The main disadvantages of the hanging piece method are: the sea fresh equipment is opened only at fault or periodic maintenance nodes, and sampling and observation are greatly limited.
Disclosure of Invention
The present invention has been made to solve at least one of the above problems occurring in the prior art, and the object is achieved by the following means.
the invention provides a pipeline type experimental device for simulating seawater scouring corrosion, which comprises: the inlet end of the water inlet pipeline is communicated with a water source;
The outlet end of the water outlet pipeline is communicated with the recovery device;
The first end of the communicating pipeline is detachably connected with the outlet end of the water inlet pipeline, and the communicating pipeline is communicated with the water inlet pipeline when the communicating pipeline is in a connected state; the second end of the communicating pipeline is detachably connected with the water outlet pipeline, and when the communicating pipeline is in a connected state, the communicating pipeline is communicated with the water outlet pipeline.
furthermore, the number of the communication pipelines is at least two, and the communication pipelines are arranged in parallel;
The water inlet pipeline comprises a main water inlet pipeline and at least two branch water inlet pipelines communicated with the main water inlet pipeline, the inlet end of the main water inlet pipeline is communicated with the water source, and the outlet end of each branch water inlet pipeline is communicated with the first end of each communicating pipeline in a one-to-one correspondence manner;
the water outlet pipeline comprises a main water outlet pipeline and at least two water outlet branch pipelines communicated with the main water outlet pipeline, the outlet end of the main water outlet pipeline is communicated with the recovery device, and the inlet ends of the water outlet branch pipelines are respectively communicated with the second ends of the communicating pipelines in a one-to-one correspondence manner.
Furthermore, the quantity of the branch water inlet pipes is more than that of the communication pipes, and a first sealing cover plate is detachably mounted at the outlet ends of the branch water inlet pipes which are not connected with the communication pipes.
Furthermore, the number of the water outlet branch pipes is more than that of the communication pipes, and a second sealing cover plate is detachably mounted at the inlet end of the water outlet branch pipe which is not connected with the communication pipes.
Furthermore, the outlet end of the water inlet branch pipeline and the first end of the communicating pipeline, and the inlet end of the water outlet branch pipeline and the second end of the communicating pipeline are detachably connected through flange components.
furthermore, the flange assembly comprises a first flange plate, a second flange plate, bolts for connecting the two flange plates, and a gasket arranged between the two flange plates;
the first flange plate is arranged on the water inlet branch pipeline or the water outlet branch pipeline, and the second flange plate is arranged on the communicating pipeline.
In the experimental process, according to the quantity of the sample wafer to be tested, the corresponding quantity of communicating pipes is installed, each communicating pipe corresponds to a group of water inlet branch pipes and water outlet branch pipes, so that a plurality of scouring loops which are arranged in parallel are formed, and redundant water inlet branch pipes and water outlet branch pipes can be plugged by the sealing cover plate. Then, test sample wafers are placed in different scouring loops according to the types and the quantity of the sample wafer materials, the water flow speed in the pipeline is controlled by changing the water inlet speed, and the parallel research on the scouring corrosion forms and mechanisms of the samples at different flow speeds is realized.
like this, through the pipeline that can dismantle the connection to form the suitable quantity as required and erode the return circuit, thereby enlarge experiment application scope, and to different kinds of material sample wafer, can place respectively in the difference erodees the return circuit, with erode the corruption research simultaneously, the sample of being convenient for is horizontal comparison under equal experimental condition, the sample corrosion situation under the different speed of erodeing of research that can also be comparatively convenient.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
FIG. 1 is a cross-sectional view of one embodiment of a ducted experimental apparatus provided in the present invention;
Fig. 2 is a schematic structural diagram of a flange assembly in the pipeline experimental apparatus shown in fig. 1.
description of reference numerals:
11-main water inlet pipe 12-branch water inlet pipe 13-first sealing cover plate
21-main water outlet pipe 22-branch water outlet pipe 23-second sealing cover plate
3-connecting pipe
4-Flange block 41-first flange 42-second flange 43-spacer
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1 and 2, fig. 1 is a cross-sectional view of a pipeline experimental apparatus according to an embodiment of the present invention; fig. 2 is a schematic structural diagram of a flange assembly in the pipeline experimental apparatus shown in fig. 1.
In a specific embodiment, the invention provides a pipeline type experimental device for simulating seawater erosion corrosion, which comprises a water inlet pipeline, a water outlet pipeline and a communicating pipeline 3; the inlet end of the water inlet pipeline is communicated with a water source, and the outlet end of the water outlet pipeline is communicated with a recovery device; the first end of the communicating pipeline 3 is detachably connected with the outlet end of the water inlet pipeline, and when the communicating pipeline 3 is in a connected state, the communicating pipeline is communicated with the water inlet pipeline; the second end of the communicating pipeline 3 is detachably connected with the water outlet pipeline, and when the communicating pipeline 3 is in a connected state, the communicating pipeline is communicated with the water outlet pipeline. In the experimental process, according to the experiment needs dismouting intercommunication pipeline 3, have the scouring liquid of simulation sea water composition in the water source, the scouring liquid gets into intercommunication pipeline 3 through the inlet channel to wash the experiment appearance piece of placing in intercommunication pipeline 3, the scouring liquid after the scouring is discharged through outlet conduit, gets into the collection box and is retrieved.
In order to realize synchronous washing of a plurality of experimental sample wafers and compare the corrosion degree of experimental samples made of different materials under the same water flow more visually, so that the experimental effect is improved, at least two communication pipelines 3 are provided, and each communication pipeline 3 is arranged in parallel; the water inlet pipeline comprises a main water inlet pipeline 11 and at least two branch water inlet pipelines 12 communicated with the main water inlet pipeline 11, the inlet end of the main water inlet pipeline 11 is communicated with the water source, and the outlet ends of the branch water inlet pipelines 12 are respectively communicated with the first ends of the communicating pipelines 3 in a one-to-one correspondence manner; the water outlet pipeline comprises a main water outlet pipeline 21 and at least two branch water outlet pipelines 22 communicated with the main water outlet pipeline 21, the outlet end of the main water outlet pipeline 21 is communicated with the recovery device, and the inlet ends of the branch water outlet pipelines 22 are respectively communicated with the second ends of the communicating pipelines 3 in a one-to-one correspondence manner.
According to the quantity requirement, the communicating pipe 3 is installed between the water inlet branch pipe 12 and the water outlet branch pipe 22 to form a plurality of mutually independent and parallel flushing loops, in the experimental process, the experimental sample pieces are arranged in different flushing loops in a one-to-one correspondence manner, flushing liquid enters through the water inlet main pipe 11, and after the water inlet branch pipe 12 is shunted, the flushing liquid simultaneously enters into the communicating pipe communicated with each water inlet branch pipe, and after the experimental sample pieces in the respective communicating pipe are synchronously flushed, the flushing liquid flows out through the water outlet main pipe 21 after being gathered by the water outlet branch pipe 22.
In the in-service use process, required washing circuit quantity is different under the different experimental requirements, in order to enlarge the suitability, except with connecting pipe 3 and intake branch pipe 12, go out and to dismantle between the water branch pipe 22 and be connected to the dismouting does, works as intake branch pipe 12's quantity is more than connecting pipe 3's quantity, not with connecting pipe 3 links to each other intake branch pipe 12's exit end detachably installs first cover plate 13 that seals, when need not to use, can dismantle connecting pipe 3 on this return circuit to through the shutoff of first cover plate that seals, take place to leak in order to avoid intaking, and simplified the structure of device.
Further, when the number of the water outlet branch pipes 22 is greater than the number of the communication pipes 3, and the inlet end of the water outlet branch pipe 22, which is not connected to the communication pipes 3, is detachably provided with a second sealing cover plate 23, when the device is not used, the communication pipes 3 on the loop can be detached and sealed by the second sealing cover plate, so that water leakage is avoided, and the structure of the device is simplified.
Specifically, the detachable connections between the outlet end of the inlet branch pipe 12 and the first end of the communication pipe 3 and between the inlet end of the outlet branch pipe 22 and the second end of the communication pipe 3 may be implemented by using an original conventional structure, such as a bolt connection or a snap connection. Preferably, in order to guarantee the sealing performance, the detachable connection mentioned in the application is realized by using the flange assembly 4.
The flange assembly 4 includes a first flange 41, a second flange 42, a bolt for connecting the two flanges, and a gasket 43 disposed between the two flanges, wherein the first flange 41 is installed in the inlet branch pipe 12 or the outlet branch pipe 22, and the second flange 42 is installed in the communicating pipe 3.
It should be understood that when the flange assembly 4 is used between the outlet end of the inlet branch pipe 12 and the first end of the communication pipe 3, the first flange 41 is mounted on the outlet end of the inlet branch pipe 12, and the second flange 42 is mounted on the communication pipe 3; when the flange assembly 4 is used between the inlet end of the outlet branch pipe 22 and the second end of the communication pipe 3, the first flange 41 is mounted to the inlet end of the outlet branch pipe 22, and the second flange 42 is mounted to the communication pipe 3.
in the experimental process, according to the quantity of the sample wafer to be tested, the corresponding quantity of the communicating pipes 3 are installed, each communicating pipe 3 corresponds to one group of the water inlet branch pipes 12 and the water outlet branch pipes 22, so that a plurality of scouring loops which are arranged in parallel are formed, and the redundant water inlet branch pipes 12 and the redundant water outlet branch pipes 22 can be plugged by the sealing cover plate. Then, test sample wafers are placed in different scouring loops according to the types and the quantity of the sample wafer materials, the water flow speed in the pipeline is controlled by changing the water inlet speed, and the parallel research on the scouring corrosion forms and mechanisms of the samples at different flow speeds is realized.
Like this, through the pipeline that can dismantle the connection to form the suitable quantity as required and erode the return circuit, thereby enlarge experiment application scope, and to different kinds of material sample wafer, can place respectively in the difference erodees the return circuit, with erode the corruption research simultaneously, the sample of being convenient for is horizontal comparison under equal experimental condition, the sample corrosion situation under the different speed of erodeing of research that can also be comparatively convenient.
Furthermore, the material of each pipeline is made of acid and alkali resistant medium corrosion resistant material, so that the erosion corrosion simulation of various fluid media can be realized.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
it will be apparent to those skilled in the art that various modifications and variations can be made in the embodiments of the present invention without departing from the spirit or scope of the embodiments of the invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to encompass such modifications and variations.
Claims (6)
1. The utility model provides a pipeline formula experimental apparatus of simulation sea water erosion corrosion which characterized in that includes:
The inlet end of the water inlet pipeline is communicated with a water source;
the outlet end of the water outlet pipeline is communicated with the recovery device;
the first end of the communicating pipeline (3) is detachably connected with the outlet end of the water inlet pipeline, and when the communicating pipeline (3) is in a connected state, the communicating pipeline (3) is communicated with the water inlet pipeline; the second end of the communicating pipeline (3) is detachably connected with the water outlet pipeline, and when the communicating pipeline (3) is in a connected state, the communicating pipeline is communicated with the water outlet pipeline.
2. The pipeline experimental apparatus according to claim 1, wherein there are at least two communication pipelines (3), and each of the communication pipelines (3) is arranged in parallel;
The water inlet pipeline comprises a main water inlet pipeline (11) and at least two branch water inlet pipelines (12) communicated with the main water inlet pipeline (11), the inlet end of the main water inlet pipeline (11) is communicated with the water source, and the outlet ends of the branch water inlet pipelines (12) are respectively communicated with the first ends of the communicating pipelines (3) in a one-to-one correspondence manner;
The water outlet pipeline comprises a main water outlet pipeline (21) and at least two branch water outlet pipelines (22) communicated with the main water outlet pipeline (21), the outlet end of the main water outlet pipeline (21) is communicated with the recovery device, and the inlet ends of the branch water outlet pipelines (22) are respectively communicated with the second ends of the communication pipelines (3) in a one-to-one correspondence manner.
3. The ducted experimental apparatus according to claim 2, wherein the number of said water inlet branch pipes (12) is larger than the number of said communication pipes (3), and a first closing cover (13) is detachably mounted to an outlet end of said water inlet branch pipe (12) which is not connected to said communication pipes (3).
4. The ducted experimental apparatus according to claim 2, wherein the number of the outlet branch ducts (22) is larger than the number of the communication ducts (3), and a second closing cover (23) is detachably attached to an inlet end of the outlet branch duct (22) which is not connected to the communication ducts (3).
5. The pipeline experimental apparatus according to any one of claims 2 to 4, wherein the outlet end of the inlet branch pipeline (12) and the first end of the communication pipeline (3), and the inlet end of the outlet branch pipeline (22) and the second end of the communication pipeline (3) are detachably connected through a flange assembly (4).
6. The pipeline experimental apparatus according to claim 5, wherein the flange assembly (4) comprises a first flange (41), a second flange (42), bolts connecting the two flanges, and a gasket (43) disposed between the two flanges;
The first flange plate (41) is arranged on the water inlet branch pipe (12) or the water outlet branch pipe (22), and the second flange plate (42) is arranged on the communication pipe (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910839245.6A CN110567829A (en) | 2019-09-05 | 2019-09-05 | Pipeline type experimental device for simulating seawater erosion corrosion |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910839245.6A CN110567829A (en) | 2019-09-05 | 2019-09-05 | Pipeline type experimental device for simulating seawater erosion corrosion |
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| Publication Number | Publication Date |
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| CN110567829A true CN110567829A (en) | 2019-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910839245.6A Pending CN110567829A (en) | 2019-09-05 | 2019-09-05 | Pipeline type experimental device for simulating seawater erosion corrosion |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111678825A (en) * | 2020-06-08 | 2020-09-18 | 首钢集团有限公司 | Erosion corrosion experimental device and using method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975744A (en) * | 2010-09-14 | 2011-02-16 | 苏州有色金属研究院有限公司 | Erosion corrosion test device of seawater piping system metal member |
| CN105403478A (en) * | 2015-12-03 | 2016-03-16 | 东方电气集团东方汽轮机有限公司 | Solid-liquid-containing multi-phase flow washout test system and test method |
| CN106990010A (en) * | 2017-05-11 | 2017-07-28 | 中国民航大学 | Liquid erosion test device in a kind of many reference amounts regulation and control pipeline |
| CN109238901A (en) * | 2018-10-24 | 2019-01-18 | 中国石油大学(华东) | A kind of multichannel erosion corrosion test macro and method |
-
2019
- 2019-09-05 CN CN201910839245.6A patent/CN110567829A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975744A (en) * | 2010-09-14 | 2011-02-16 | 苏州有色金属研究院有限公司 | Erosion corrosion test device of seawater piping system metal member |
| CN105403478A (en) * | 2015-12-03 | 2016-03-16 | 东方电气集团东方汽轮机有限公司 | Solid-liquid-containing multi-phase flow washout test system and test method |
| CN106990010A (en) * | 2017-05-11 | 2017-07-28 | 中国民航大学 | Liquid erosion test device in a kind of many reference amounts regulation and control pipeline |
| CN109238901A (en) * | 2018-10-24 | 2019-01-18 | 中国石油大学(华东) | A kind of multichannel erosion corrosion test macro and method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111678825A (en) * | 2020-06-08 | 2020-09-18 | 首钢集团有限公司 | Erosion corrosion experimental device and using method thereof |
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Application publication date: 20191213 |