CN113466118A - Corrosion test device for petroleum conveying equipment - Google Patents
Corrosion test device for petroleum conveying equipment Download PDFInfo
- Publication number
- CN113466118A CN113466118A CN202110753011.7A CN202110753011A CN113466118A CN 113466118 A CN113466118 A CN 113466118A CN 202110753011 A CN202110753011 A CN 202110753011A CN 113466118 A CN113466118 A CN 113466118A
- Authority
- CN
- China
- Prior art keywords
- pipe
- heat
- corrosion
- hot
- oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Environmental & Geological Engineering (AREA)
- Environmental Sciences (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The invention discloses a corrosion test device for petroleum conveying equipment, which comprises a tank body filled with a corrosive solution, wherein a circulating spray system is arranged above the tank body and used for extracting the corrosive solution in the tank body and spraying the corrosive solution downwards, the corrosion test device also comprises more than one set of heat circulating system, the heat circulating system comprises a heat inlet pipe and a heat outlet pipe which are communicated with a heat supply source, the heat inlet pipe and the heat outlet pipe are arranged below the circulating spray system, a plurality of petroleum conveying pipes to be tested are arranged between the heat inlet pipe and the heat outlet pipe in parallel, the heat inlet pipe and the heat outlet pipe are matched to circularly supply heat to the plurality of petroleum conveying pipes during the test and are used for spraying the corrosive solution upwards on the plurality of petroleum conveying pipes after being heated to carry out the corrosion test. The invention has the advantages of simple and compact structure, convenient and fast operation, high working efficiency, strong adaptability, good test effect and low cost.
Description
Technical Field
The invention mainly relates to the technical field of maintenance of petroleum conveying pipelines, in particular to a corrosion test device for petroleum conveying equipment.
Background
Corrosion is the degradation and destruction of a material by chemical or electrochemical action that occurs in the medium in which it is located. In petrochemical production, in order to ensure long-term stable operation of the device and reduce heat loss, an anticorrosive coating is usually brushed on the surfaces of pipelines, containers and other equipment, and a heat-insulating protective layer is adopted for heat-insulating protection, so that the corrosion of the outer surface of the equipment below the heat-insulating protective layer of the coating is accompanied.
Although the design life of these protective sub-layer pipeline equipment is in the range of 30-50 years, long term sub-protective corrosion causes concern about its actual safe and effective life. In extreme cases, corrosion can lead to a significant catastrophic event that results in the loss of life and death. Subject to objective conditions, the insulating protective layer cannot be removed in advance to monitor in real time, and it is difficult to predict the severity of the corrosion phenomenon. The evaluation of the corrosion protection safety of underground oil and gas pipelines of tens of thousands of kilometers is a necessary but difficult work to realize accurately.
At present, oil pipelines and other equipment of many oil refineries in China are already in service for more than 50 years, and a set of standard corrosion detection and evaluation system and a professional corrosion simulation device are not formed on the outer surface of the oil pipelines and other equipment. How well is the corrosion resistance achieved? To what extent is probably corroded today? These problems are urgently needed to be solved. The corrosion test of the existing petroleum conveying equipment has the following technical problems:
firstly, the real operating mode of refinery pipeline surface corruption under the unable accurate realization inoxidizing coating.
Secondly, researches show that the coating heat-insulating protective layer on the surface has certain corrosivity in the long-term operation process of oil and gas pipelines, containers or other equipment. Meanwhile, the porous structure forms larger surface area and capillary effect, so that electrochemical corrosion and other medium corrosion are generated. The corrosion is in the range of 0-120 ℃, different temperature values can cause different corrosion phenomena, and the corrosion speed is obviously accelerated when the temperature is higher than 60 ℃. However, the prior art cannot realize corrosion tests at different temperatures (especially at high temperature for a long time), so that the test result accuracy is low.
And thirdly, the petroleum conveying equipment has characteristics, the petroleum conveying equipment is provided with a conveying pipeline as an example, pipelines with various pipe diameters and pipelines with different materials exist, different coatings and heat-insulating protective layers possibly exist on the outer surfaces of different pipelines, and the corrosion test device in the prior art is low in working efficiency and poor in adaptability, and can not simultaneously carry out rapid corrosion tests on various pipelines with different pipe diameters, different materials, different coatings and heat-insulating protective layers.
Fourthly, the test has low working efficiency. As is well known, petroleum conveying pipelines have a plurality of lines, each line is extremely long, the same line can cross regions with different climates and different landforms, so that various different test pipelines (different lines, different sections of the same line and the like) need to be tested simultaneously and quickly, and the general period of a corrosion test is relatively long, so that one set of equipment is urgently needed to complete the special corrosion test operation efficiently and quickly.
Fifthly, the test flexibility is poor. The corrosion test of petroleum conveying equipment needs to truly simulate different environments, so that different test temperatures and different spraying effects (spraying force, spraying range and the like) are involved, and the prior art cannot meet the requirements.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides the corrosion test device for the petroleum conveying equipment, which has the advantages of simple and compact structure, convenience and quickness in operation, high working efficiency, strong adaptability, good test effect and low cost.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a corrosion test device for oil conveying equipment, is including the cell body that is equipped with corrosive solution, the top of cell body is equipped with circulation spray system, is used for extracting the corrosive solution in the cell body and sprays to the below, still includes the heat-cycle system more than one set, heat-cycle system includes that the heat with heat supply source intercommunication advances pipe and hot exit tube, the below of circulation spray system is located to hot pipe and hot exit tube, hot advance to be used for many oil conveying pipe of treating experimental of parallelly connected installation between pipe and the hot exit tube, during the experiment hot pipe and hot exit tube cooperate towards many oil conveying pipe internal circulation heat supply, be used for making the many oil conveying pipe after the heating heaies up all receive spraying of top corrosive solution in order to carry out corrosion test.
As a further improvement of the invention, the heat supply source comprises a water heater, the water heater heats water transmitted from the hot outlet pipe and transmits the heated water to the plurality of petroleum conveying pipes through the hot inlet pipe to carry out circulating heating and temperature rise, the hot inlet pipe is provided with a temperature sensor for monitoring the temperature of the water in the pipe, and the temperature sensor is in communication connection with the water heater and is used for controlling the automatic temperature regulation of the water heater through real-time monitoring.
As a further improvement of the invention, more than two sets of heat circulation systems are provided, and each set of heat circulation system independently controls the heating temperature to be used for carrying out corrosion tests at different temperatures.
As a further improvement of the present invention, the hot inlet pipe and the hot outlet pipe are respectively provided with a plurality of pipe adapters for communicatively mounting oil conveying pipes with different pipe diameters between the hot inlet pipe and the hot outlet pipe, each pipe adapter comprises a plurality of hollow connecting rings with different outer diameters for forming detachable communication from small to large in sequence, the rear end of each connecting ring is provided with a circle of sealing slot, the front end of each connecting ring is provided with a circle of cannula part, and the cannula part is used for being inserted into the oil conveying pipe to form communication with the oil conveying pipe or inserted into the sealing slot of the previous connecting ring to communicate two adjacent connecting rings.
As a further improvement of the invention, each sealing slot is internally provided with an elastic sealing element.
As a further improvement of the invention, a plurality of convex branch pipes are arranged on each of the hot inlet pipe and the hot outlet pipe and are used for being inserted into the sealing inserting grooves of the connecting rings with the largest outer diameter so as to install and connect the connecting rings.
As a further improvement of the invention, the circulating spray system comprises a delivery pump, a liquid conveying pipe and a plurality of spray pipes, wherein the plurality of spray pipes are sequentially paved above the tank body, the delivery pump is communicated between the tank body and the plurality of spray pipes through the liquid conveying pipe, and a plurality of nozzle assemblies are arranged on each spray pipe and used for spraying the corrosive solution towards the downward petroleum conveying pipe.
As a further improvement of the invention, each nozzle assembly comprises a solenoid valve and a nozzle which are matched, the size of the spraying range of the nozzle can be adjusted, and the solenoid valve is used for controlling the opening and closing of the nozzle or controlling the spraying strength.
As a further improvement of the invention, the system is further provided with a solution supplementing system, wherein the solution supplementing system comprises a corrosive solution tank, a transmission pipe and an electronic ball float valve, the corrosive solution tank is communicated with the tank body through the transmission pipe, and the electronic ball float valve is arranged in the tank body and used for monitoring the amount of the corrosive solution in the tank body in real time so as to control the corrosive solution supplementing system to supplement the corrosive solution into the tank body.
As a further improvement of the invention, the oil well pipe test device further comprises a plurality of annular isolation plate assemblies, each isolation plate assembly comprises an upper plate and a lower plate which are detachably connected, two ends of each upper plate are respectively provided with a protruding bolt, two ends of each lower plate are respectively provided with a groove for inserting and clamping the corresponding bolt, and the isolation plate assemblies are tightly clamped and installed on the oil conveying pipe during a test and used for separating test sections with different coatings or different protective layers on the oil conveying pipe.
Compared with the prior art, the invention has the advantages that:
the corrosion test device for the petroleum conveying equipment has a good test effect, and can accurately realize the real working condition of corrosion of the outer surface of the refinery pipeline under the protective layer. Through multiple tests and analysis, the corrosion test is carried out by using the method, and the long-period corrosion effect of the pipe sections made of different materials under different coatings and insulating layer materials can be obtained in a short time. If the corrosion test of the refinery pipeline under the protective layer is continuously carried out for three months, the corrosion result is similar to the corrosion result of the refinery pipeline under the actual heat-insulating layer for about 5 years.
The corrosion test device for the petroleum conveying equipment can form circulating heat supply, so that a plurality of petroleum conveying pipes 4 are heated and heated to carry out a spray test, corrosion phenomena possibly caused by different temperature values can be simulated, and corrosion tests at different temperatures (especially at high temperature for a long time) are realized, so that the test effect is good, the test range is wide, and the result accuracy is high.
The corrosion test device for the petroleum conveying equipment has strong adaptability and high working efficiency, and can simultaneously carry out rapid corrosion tests on various pipelines with different pipe diameters, different materials, different coatings, different heat-insulating protective layers, different lines and different road sections.
Fourthly, the corrosion test device for the petroleum conveying equipment is provided with the pipeline adapter with the connecting rings with different outer diameters, so that petroleum conveying pipes with different pipe diameters can be rapidly communicated and installed between the hot inlet pipe and the hot outlet pipe, and the corrosion test device is strong in adaptability and high in working efficiency.
Drawings
FIG. 1 is a schematic diagram of a schematic top view of a corrosion test device for petroleum transportation equipment according to the present invention.
FIG. 2 is a schematic side view of the corrosion test device for petroleum transportation equipment according to the present invention.
FIG. 3 is a schematic top view of the corrosion test apparatus according to the present invention, showing the principle of the structure thereof when only the heat cycle system is installed.
FIG. 4 is a schematic top view of the corrosion test apparatus of the present invention, showing only the circulating shower system.
FIG. 5 is a schematic top view of the corrosion test apparatus of the present invention, showing the principle of the structure of a small-diameter oil pipe.
FIG. 6 is a schematic top view of the corrosion test apparatus of the present invention, showing the principle of the structure of a large-diameter oil pipe.
Fig. 7 is a schematic perspective view of the pipe adapter of the present invention when disassembled.
Fig. 8 is a schematic perspective view of the pipe adapter of the present invention when incorporated.
Fig. 9 is a schematic perspective view of the assembled separator plates of the present invention.
Fig. 10 is a schematic perspective view of the disassembled separator plate assembly of the present invention.
The reference numerals in the figures denote:
1. a tank body; 2. a circulating spray system; 21. a delivery pump; 22. a transfusion tube; 23. a shower pipe; 231. a nozzle assembly; 3. a heat cycle system; 31. a water heater; 32. a heat inlet pipe; 321. a temperature sensor; 33. a hot outlet pipe; 34. a pipe adapter; 341. a connecting ring; 3411. sealing the slot; 3412. a cannula part; 35. a branch pipe; 4. a petroleum conveying pipe; 5. a solution replenishment system; 51. a corrosive solution tank; 52. a conveying pipe; 53. an electronic float valve; 6. a separator plate assembly; 61. an upper plate; 611. a bolt; 62. a lower plate; 621. and (4) a groove.
Detailed Description
The invention will be described in further detail below with reference to the drawings and specific examples.
As shown in fig. 1 to 10, the invention provides a corrosion test device for petroleum transportation equipment, which comprises a tank body 1 filled with a corrosion solution, wherein a circulating spray system 2 is arranged above the tank body 1 and used for extracting the corrosion solution in the tank body 1 and spraying the corrosion solution downwards, and the corrosion test device further comprises more than one set of heat circulating system 3, the heat circulating system 3 comprises a heat inlet pipe 32 and a heat outlet pipe 33 which are communicated with a heat supply source, the heat inlet pipe 32 and the heat outlet pipe 33 are arranged below the circulating spray system 2, a plurality of petroleum transportation pipes 4 to be tested are arranged between the heat inlet pipe 32 and the heat outlet pipe 33 in parallel, and the heat inlet pipe 32 and the heat outlet pipe 33 are matched to circularly supply heat to the plurality of petroleum transportation pipes 4 during testing and are used for spraying the corrosion solution upwards on the plurality of petroleum transportation pipes 4 heated and heated to perform a corrosion test. In this example, the cell body 1 was assembled and welded by using 316L stainless steel plates, and a sufficient amount of 5% saline was charged as a corrosion test solution. And a support rod is arranged above the corrosive solution in the tank body 1 and is used for supporting a plurality of petroleum conveying pipes 4 to be tested. The specific implementation principle is as follows:
before the test, the staff can install many petroleum delivery pipe 4 that wait to test between hot advancing pipe 32 and hot exit tube 33 with parallelly connecting for hot advancing pipe 32 and many petroleum delivery pipe 4's head end intercommunication, hot exit tube 33 and many petroleum delivery pipe 4's tail end intercommunication. These multiple petroleum pipes 4 to be tested may be pipes of different diameters intercepted, pipes of different coatings and thermal barriers intercepted, pipes of different lines intercepted, pipes of different sections of the same line intercepted, etc. After the installation, the heat inlet pipe 32 supplies heat from the heat supply source, inputs the heat into the plurality of petroleum conveying pipes 4 to be tested, and flows back to the heat supply source from the heat outlet pipe 33 to form circulating heat supply, so that the plurality of petroleum conveying pipes 4 are heated and heated. The heat supply source can supply hot water as described below, or hot air and the like, and the temperature is adjustable. Meanwhile, the heat circulation system 3 starts to operate, and the corrosive solution in the tank body 1 is pumped and sprayed towards the plurality of oil conveying pipes 4 below. In the process, for better test effect and for simulating the damage condition of the heat-insulating protective layer, 3 holes with the diameter of 5mm can be uniformly drilled on the outer surface of the protective layer of the oil conveying pipe 4 along the radial direction, and two rows are formed in each section. The drilled holes penetrate through the heat-insulating protective layer, so that the corrosion solution directly flows to the outer surface of the pipeline, flows in from the two holes on the upper part and flows out from the holes on the lower part, and thus the corrosion solution can completely infiltrate the coating or the outer surface of the pipeline, and the effect is better. After the operation was completed for a suitable time, the test was stopped, and the corrosion analysis was performed on each of the oil transfer pipes 4. Through the special scientific design, the method has the following technical advantages:
the corrosion test device for the petroleum conveying equipment has a good test effect, and can accurately realize the real working condition of corrosion of the outer surface of the refinery pipeline under the protective layer. Through multiple tests and analysis, the corrosion test is carried out by using the method, and the long-period corrosion effect of the pipe sections made of different materials under different coatings and insulating layer materials can be obtained in a short time. If the corrosion test of the refinery pipeline under the protective layer is continuously carried out for three months, the corrosion result is similar to the corrosion result of the refinery pipeline under the actual heat-insulating layer for about 5 years.
The corrosion test device for the petroleum conveying equipment can form circulating heat supply, so that a plurality of petroleum conveying pipes 4 are heated and heated to carry out a spray test, corrosion phenomena possibly caused by different temperature values can be simulated, and corrosion tests at different temperatures (especially at high temperature for a long time) are realized, so that the test effect is good, the test range is wide, and the result accuracy is high.
The corrosion test device for the petroleum conveying equipment has strong adaptability and high working efficiency, and can simultaneously carry out rapid corrosion tests on various pipelines with different pipe diameters, different materials, different coatings, different heat-insulating protective layers, different lines and different road sections.
Further, in the preferred embodiment, the heat supply source includes a water heater 31, the water heater 31 heats the water transmitted from the hot outlet pipe 33 and transmits the heated water to the plurality of oil conveying pipes 4 through the hot inlet pipe 32 for heating circularly, the hot inlet pipe 32 is provided with a temperature sensor 321 for monitoring the temperature of the water in the pipe, and the temperature sensor 321 and the water heater 31 are in communication connection for controlling the water heater 31 to automatically adjust the temperature through real-time monitoring. The temperature sensor measures the temperature of water in the test tube, and the water temperature is controlled to be kept at 60-80 ℃ and 80-100 ℃ (can be set according to test requirements). The automatic heating of temperature is controlled through the automatic control system, when the temperature of circulating water is lower than the design low temperature, the heating is automatically started, and when the temperature of circulating water is higher than the design high temperature, the heating is automatically stopped, so that the temperature of the system is kept in the design constant range, the energy is saved, the environment is protected, and the working cost is greatly reduced by a hot water circulation mode.
Further, in the preferred embodiment, more than two sets of heat cycle systems 3 are provided, and each set of heat cycle system 3 independently controls the heating temperature for carrying out corrosion tests at different temperatures. The same pond body 1, the same set of circulation spraying system 2, but thermal circulation system 3 more than two sets, thermal circulation system 3's oil delivery pipe 4's temperature is different (the different environment of simulation), make can carry out corrosion test simultaneously to the oil delivery pipe 4 of different temperatures, also when having satisfied the multiclass pipeline of different pipe diameters, different materials, different coatings and heat preservation inoxidizing coating, different circuit, different highway sections, still further satisfied the synchronous quick corrosion test of different temperatures (environment).
Further, in the preferred embodiment, a plurality of pipe adapters 34 are disposed on each of the heat inlet pipe 32 and the heat outlet pipe 33 for communicatively mounting the oil conveying pipes 4 with different pipe diameters between the heat inlet pipe 32 and the heat outlet pipe 33, each pipe adapter 34 includes a plurality of hollow connecting rings 341 with different outer diameters for forming detachable communication in sequence from small to large, a circle of sealing slots 3411 is disposed at a rear end of each connecting ring 341, a circle of inserting pipe 3412 is disposed at a front end of each connecting ring 341, and the inserting pipe 3412 is used for inserting into the oil conveying pipe 4 to form communication with the oil conveying pipe 4 or inserting into the sealing slot 3411 of the previous connecting ring 341 to communicate with the adjacent two connecting rings 341. The principle is as follows: in order to install the oil conveying pipes 4 with different pipe diameters between the hot inlet pipe 32 and the hot outlet pipe 33 in a communicating mode, the invention further designs a pipe adapter 34. Taking fig. 6, 7, 8 and 9 as an example, in the present embodiment, the pipe adapter 34 includes three hollow connection rings 341 with different outer diameters from large to small.
As shown in fig. 7, when it is required to communicate with an oil delivery pipe 4 with a maximum pipe diameter, the rear end of the maximum connection ring 341 is fixed to the heat input pipe 32 (welding or screws may be used, and sealant may be further applied to the joint in order to ensure sealing), and then the insertion tube 3412 at the front end of the connection ring 341 is inserted into the oil delivery pipe 4 to form connection and fixation (the connection and fixation may be in various manners, such as welding or screws may be used, and sealant may be further applied to ensure sealing), so that the heat input pipe 32 and the oil delivery pipe 4 with the maximum pipe diameter are communicated. The connection between the other end of oil delivery pipe 4 and heated outlet pipe 33 also operates as described above. The insertion of the cannula portion 3412 provides good connection support.
As shown in fig. 6, when it is required to communicate with an oil delivery pipe 4 with a minimum pipe diameter, the rear end of the largest connecting ring 341 is fixed to the heat inlet pipe 32 (welding or screws may be used, and a sealant may be further applied to ensure sealing), and then the cannula 3412 at the front end of the connecting ring 341 is inserted into the sealing slot 3411 at the rear end of the second largest connecting ring 341 to communicate and fix the two connecting rings 341 (the connecting and fixing methods are various, such as welding or screws may be used, and a sealant may be further applied to ensure sealing). Then, the cannula 3412 at the front end of the second large connecting ring 341 is inserted into the sealing slot 3411 at the rear end of the smallest connecting ring 341 to connect and fix the two connecting rings 341 (the connection and fixation methods are various, such as welding or screws for sleeving, and further sealant can be applied to ensure sealing), and then the cannula 3412 at the front end of the smallest connecting ring 341 is inserted into the oil delivery pipe 4 to connect and fix the smallest connecting ring 341 (the connection and fixation methods are various, such as welding or screws for sleeving, and further sealant can be applied to ensure sealing), so that the heat inlet pipe 32 is also communicated with the oil delivery pipe 4 with the smallest diameter. The connection between the other end of oil delivery pipe 4 and heated outlet pipe 33 also operates as described above. Through the pipeline adapter 34 of the connecting ring 341 who has a plurality of different external diameters of simultaneous design for can install the equal quick intercommunication of the oil conveyer pipe 4 of different pipe diameters between advancing pipe 32 and the hot exit tube 33 with heat, make this device strong adaptability, work efficiency height. Also between advancing pipe 32 and hot exit tube 33, can once install the oil delivery pipe 4 of different pipe diameters simultaneously, then make these oil delivery pipe 4 of different pipe diameters carry out the experiment together, this adaptability that has improved this device greatly, improved experimental work efficiency greatly, shortened test cycle greatly.
Further, in the preferred embodiment, each of the seal slots 3411 has a resilient seal disposed therein. Sealing can be further ensured.
Further, in the preferred embodiment, a plurality of protruding branches 35 are provided on each of the inlet pipe 32 and the outlet pipe 33, and the protruding branches 35 are used for inserting into the sealing slots 3411 of the connection ring 341 with the largest outer diameter to mount and connect the connection ring 341. This facilitates the stable mounting of the connection ring 341 as the most basic.
Further, in the preferred embodiment, the circulating spray system 2 includes a delivery pump 21, a liquid pipe 22 and a plurality of spray pipes 23, the plurality of spray pipes 23 are sequentially laid on the upper side of the tank body 1, the delivery pump 21 is connected between the tank body 1 and the plurality of spray pipes 23 through the liquid pipe 22, and a plurality of nozzle assemblies 231 are arranged on each spray pipe 23 for spraying the corrosion solution towards the lower oil delivery pipe 4. The delivery pump 21 is an industrial corrosion-resistant pump, and test parameters such as the concentration of the corrosive solution can be flexibly adjusted.
Further, in the preferred embodiment, each nozzle assembly 231 includes a solenoid valve and a nozzle that are coupled to each other, the nozzle being adjustable in size of the spray range, the solenoid valve being used to control the opening and closing of the nozzle or to control the spray intensity. This makes the adaptability of this device further strengthen, through regulation and control spraying scope size, injection dynamics, can form different simulated environment, also can develop manifold corrosion test simultaneously.
Further, in the preferred embodiment, a solution replenishing system 5 is further provided, the solution replenishing system 5 comprises an etching solution tank 51, a transmission pipe 52 and an electronic ball float valve 53, the etching solution tank 51 is communicated with the tank body 1 through the transmission pipe 52, and the electronic ball float valve 53 is arranged in the tank body 1 and is used for monitoring the amount of the etching solution in the tank body 1 in real time so as to control the etching solution tank 51 to replenish the etching solution into the tank body 1. Because the corrosive solution (for example, salt water) can evaporate and reduce in the long-term work of spraying, in order to guarantee the cyclic use of salt water, through setting up solution make-up system 5, when the salt water yield is less than the settlement liquid level in the pond, give corrosive solution case 51 through electron ball-cock assembly 53 with signal transmission, then supply water for the salt water pond through corrosive solution case 51 automatic control moisturizing pump, can avoid causing the unable long-term operation of system because of the lack of water like this, also satisfied experimental incessant the developing, effectively guaranteed the precision. Monitoring equipment can be arranged above the whole system, and the running condition of the system can be monitored in real time through remote control.
Further, in the preferred embodiment, still include a plurality of division board subassembly 6 that are the ring form, each division board subassembly 6 all includes upper plate 61 and lower plate 62 that can dismantle the connection, and the both ends of upper plate 61 all are equipped with protruding bolt 611, and the both ends of lower plate 62 all are equipped with the recess 621 that makes bolt 611 insert the chucking, and the division board subassembly 6 chucking during the test is installed on oil delivery pipe 4, is used for separating the test section that has different coatings or different inoxidizing coatings on oil delivery pipe 4. In the previous embodiment, each oil pipe 4 installed in parallel between incoming hot pipe 32 and outgoing hot pipe 33 may have a different coating or a different protective coating, which satisfies that no interference is created between the different pipes. And through setting up division board subassembly 6, can set up the test section that has different coatings or different inoxidizing coatings on same oil conveying pipe 4, as long as use division board subassembly 6 just can separate these test sections for can not form the interference between the different test sections, effectively guarantee experimental authenticity and precision (as shown in fig. 6, 7, just have four different test sections, they have different coatings or different inoxidizing coatings). This also makes a petroleum conveying pipe 4 just can carry out the experiment of multiple difference, and this has further improved experimental work efficiency and adaptability greatly for this device can carry out the heterogeneous experiment of quantity extremely simultaneously. And the special design of the upper plate 61 and the lower plate 62 makes the assembly and disassembly convenient and fast.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make numerous possible variations and modifications to the present invention, or modify equivalent embodiments to equivalent variations, without departing from the scope of the invention, using the teachings disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.
Claims (10)
1. A corrosion test device for petroleum transportation equipment, its characterized in that: including cell body (1) that is equipped with corrosive solution, the top of cell body (1) is equipped with circulation spray system (2), is used for extracting the corrosive solution in cell body (1) and sprays towards the below, still includes heat cycle system (3) more than one set, heat cycle system (3) advance pipe (32) and hot exit tube (33) including the heat with heat supply source intercommunication, the below of circulation spray system (2) is located in hot pipe (32) and hot exit tube (33), hot advance and be used for many oil conveying pipe (4) of waiting to test of parallel installation between pipe (32) and hot exit tube (33), during the experiment hot pipe (32) and hot exit tube (33) cooperate and supply heat towards many oil conveying pipe (4) inner loop, be used for making many oil conveying pipe (4) after the heating heaies up all receive the spraying of top corrosive solution in order to carry out corrosion test.
2. The corrosion test device for oil transporting equipment according to claim 1, characterized in that: the heat supply source includes a water heater (31), advance pipe (32) through heat after water heater (31) with hot exit tube (33) transmission come the water heating and transmit to a plurality of petroleum delivery pipe (4) in order to carry out circulation heating and heat up, it is equipped with temperature sensor (321) that are used for monitoring intraductal temperature to advance on pipe (32) to heat, temperature sensor (321) and water heater (31) communication connection are used for controlling water heater (31) automatic temperature regulation through real-time supervision.
3. The corrosion test device for oil transporting equipment according to claim 1, characterized in that: more than two sets of heat circulation systems (3) are arranged, and each set of heat circulation system (3) independently controls the heating temperature to be used for carrying out corrosion tests at different temperatures.
4. The corrosion test device for oil transporting equipment according to claim 1, characterized in that: the hot inlet pipe (32) and the hot outlet pipe (33) are respectively provided with a plurality of pipeline adapters (34) for communicating and installing oil conveying pipes (4) with different pipe diameters between the hot inlet pipe (32) and the hot outlet pipe (33), each pipeline adapter (34) comprises a plurality of hollow connecting rings (341) with different outer diameters and is used for sequentially forming detachable communication from small to large, the rear end of each connecting ring (341) is provided with a circle of sealing insertion groove (3411), the front end of each connecting ring (341) is provided with a circle of insertion pipe part (3412), and the insertion pipe parts (3412) are used for being inserted into the oil conveying pipes (4) to form communication with the oil conveying pipes (4) or being inserted into the sealing insertion groove (3411) of the previous connecting ring (341) to enable the adjacent two connecting rings (341) to be communicated.
5. The corrosion test device for oil transporting equipment according to claim 4, characterized in that: an elastic sealing element is arranged in each sealing slot (3411).
6. The corrosion test device for oil transporting equipment according to claim 4, characterized in that: the hot inlet pipe (32) and the hot outlet pipe (33) are respectively provided with a plurality of protruding branch pipes (35), and the branch pipes (35) are used for being inserted into the sealing inserting grooves (3411) of the connecting rings (341) with the largest outer diameter so as to install and connect the connecting rings (341).
7. The corrosion test device for oil transporting equipment according to claim 1, characterized in that: circulating spray system (2) include delivery pump (21), transfer line (22) and many shower (23), many shower (23) are tiled in the top of cell body (1) in proper order, delivery pump (21) communicate between cell body (1) and many shower (23) through transfer line (22), every be equipped with a plurality of nozzle assembly (231) on shower (23) for petroleum conveying pipe (4) towards the below spray the etchant solution.
8. The corrosion test device for oil transporting equipment according to claim 7, characterized in that: each nozzle assembly (231) comprises an electromagnetic valve and a nozzle which are matched, the size of the spraying range of the nozzle can be adjusted, and the electromagnetic valve is used for controlling the opening and closing of the nozzle or controlling the spraying force.
9. The corrosion test device for oil transporting equipment according to claim 1, characterized in that: the corrosion cell is characterized by further comprising a solution supplementing system (5), wherein the solution supplementing system (5) comprises a corrosion solution tank (51), a transmission pipe (52) and an electronic ball float valve (53), the corrosion solution tank (51) is communicated with the cell body (1) through the transmission pipe (52), and the electronic ball float valve (53) is arranged in the cell body (1) and used for monitoring the amount of corrosion solution in the cell body (1) in real time so as to control the corrosion solution supplementing system to supplement the corrosion solution from the corrosion solution tank (51) to the cell body (1).
10. The corrosion test device for oil transporting equipment according to claim 1, characterized in that: still include a plurality of annular division board subassembly (6) that are, every division board subassembly (6) all are including upper plate (61) and hypoplastron (62) that can dismantle the connection, the both ends of upper plate (61) all are equipped with convex bolt (611), the both ends of hypoplastron (62) all are equipped with recess (621) that make bolt (611) insert the chucking, during the experiment division board subassembly (6) chucking is installed on oil delivery pipe (4), is used for separating the experimental section that has different coatings or different inoxidizing coatings on oil delivery pipe (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110753011.7A CN113466118B (en) | 2021-07-02 | 2021-07-02 | Corrosion test device for petroleum conveying equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110753011.7A CN113466118B (en) | 2021-07-02 | 2021-07-02 | Corrosion test device for petroleum conveying equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113466118A true CN113466118A (en) | 2021-10-01 |
| CN113466118B CN113466118B (en) | 2023-04-28 |
Family
ID=77877762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110753011.7A Active CN113466118B (en) | 2021-07-02 | 2021-07-02 | Corrosion test device for petroleum conveying equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113466118B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115127950A (en) * | 2022-07-27 | 2022-09-30 | 西南石油大学 | High-temperature high-pressure oil well pipe erosion corrosion device capable of achieving multi-section temperature control |
Citations (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1516011A (en) * | 1975-04-28 | 1978-06-28 | Chemoprojekt Projektova Inzeny | Measurement of the polarization potential of metal structures |
| GB8326051D0 (en) * | 1982-09-30 | 1983-11-02 | Kendall & Co | Soil stress test apparatus |
| EP0446025A2 (en) * | 1990-03-08 | 1991-09-11 | Inductametals Corporation | Apparatus for metalizing internal surfaces of metal bodies such as tubes and pipes |
| US7160574B1 (en) * | 2002-08-28 | 2007-01-09 | Pipe Restoration Technologies, Llc | Barrier coating corrosion control methods and systems for interior piping systems |
| US20090068060A1 (en) * | 2007-06-27 | 2009-03-12 | Alfermann Michael J | Corrosion Monitor |
| CN101477027A (en) * | 2009-01-21 | 2009-07-08 | 合肥通用机械研究所压力容器检验站 | High-temperature high-flow rate naphthenic acid corrosion testing apparatus and testing method |
| JP2011051172A (en) * | 2009-08-31 | 2011-03-17 | Seiko Epson Corp | Liquid ejecting device |
| US20110303025A1 (en) * | 2010-05-10 | 2011-12-15 | MIC Corrosion Tek, LLC | Apparatus and methods for obtaining 3-phase (liquid, gas and solid) microbiological samples from pipes, pipelines, tanks and other vessels |
| US20120199255A1 (en) * | 2011-02-07 | 2012-08-09 | Dalmine S.P.A. | High strength steel pipes with excellent toughness at low temperature and sulfide stress corrosion cracking resistance |
| GB201212388D0 (en) * | 2012-07-12 | 2012-08-22 | Midland Corrosion Services Ltd | Crevice corrosion sensor |
| CN103616324A (en) * | 2013-11-12 | 2014-03-05 | 西安交通大学 | Multi-phase flow erosion corrosion test bed of humid H2S environment |
| CN104914035A (en) * | 2015-06-02 | 2015-09-16 | 三峡大学 | Separated type full-automatic spraying drying and watering cycle testing device |
| CN204789275U (en) * | 2015-06-24 | 2015-11-18 | 广东电网有限责任公司电力科学研究院 | Test sprays experimental system to sulfur dioxide corrosive effects influence |
| CN204923972U (en) * | 2015-09-08 | 2015-12-30 | 洛阳明远石化技术有限公司 | Heat exchanger with nonmetal heat exchange assemblies |
| CN105651682A (en) * | 2016-03-28 | 2016-06-08 | 国网四川省电力公司电力科学研究院 | Soil corrosion simulation device and corrosion simulation method thereof for oil-gas pipelines |
| JP2016130681A (en) * | 2015-01-14 | 2016-07-21 | スガ試験機株式会社 | Spray corrosion testing machine and composite cycle testing machine |
| CN105889753A (en) * | 2014-11-07 | 2016-08-24 | 重庆奥格美气体有限公司 | Cold-heat exchange system for industrial gas production |
| CN106153529A (en) * | 2016-08-31 | 2016-11-23 | 北京创然铝塑工业有限公司 | A kind of salt-mist corrosion tester and salt spray corrosion test method |
| CN106442289A (en) * | 2016-09-19 | 2017-02-22 | 中国北方车辆研究所 | Salt solution supplementing device |
| JP3210764U (en) * | 2017-03-24 | 2017-06-01 | スガ試験機株式会社 | Spray seal tester water seal cover |
| CN108489886A (en) * | 2018-03-07 | 2018-09-04 | 中国石油天然气集团有限公司 | A kind of gas storage tube corrosion simulator and the analogy method based on the device |
| JP2019035564A (en) * | 2017-08-22 | 2019-03-07 | 株式会社コロナ | Heat pump apparatus |
| CN109975153A (en) * | 2019-04-16 | 2019-07-05 | 天津大学 | A kind of injecting type stress-erosion corrosion test device |
| CN110044190A (en) * | 2019-04-12 | 2019-07-23 | 北京朗博科科技发展有限公司 | A kind of enclosed heat exchange equipment of dry-wet integrated tube bank |
| CN110542649A (en) * | 2019-10-14 | 2019-12-06 | 西南石油大学 | Multifunctional liquid single-phase flow flowing corrosion testing loop |
| CN210198923U (en) * | 2019-04-23 | 2020-03-27 | 杭州佐帕斯工业有限公司 | Defrosting heating pipe spray corrosion test life test equipment |
| CN210294018U (en) * | 2019-07-26 | 2020-04-10 | 南京博泰新材料科技有限公司 | Pipe material object erosion corrosion test equipment |
| CN111790985A (en) * | 2020-07-20 | 2020-10-20 | 兰州城市学院 | Novel laser welding device |
| US20200386661A1 (en) * | 2019-06-04 | 2020-12-10 | Zhejiang University | Corrosion-fatigue-coupled test method and device for steel bridge deck |
| CN213239875U (en) * | 2020-08-14 | 2021-05-18 | 山东聚合管业有限公司 | PE feed pipe aging testing device |
-
2021
- 2021-07-02 CN CN202110753011.7A patent/CN113466118B/en active Active
Patent Citations (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1516011A (en) * | 1975-04-28 | 1978-06-28 | Chemoprojekt Projektova Inzeny | Measurement of the polarization potential of metal structures |
| GB8326051D0 (en) * | 1982-09-30 | 1983-11-02 | Kendall & Co | Soil stress test apparatus |
| EP0446025A2 (en) * | 1990-03-08 | 1991-09-11 | Inductametals Corporation | Apparatus for metalizing internal surfaces of metal bodies such as tubes and pipes |
| US7160574B1 (en) * | 2002-08-28 | 2007-01-09 | Pipe Restoration Technologies, Llc | Barrier coating corrosion control methods and systems for interior piping systems |
| US20090068060A1 (en) * | 2007-06-27 | 2009-03-12 | Alfermann Michael J | Corrosion Monitor |
| CN101477027A (en) * | 2009-01-21 | 2009-07-08 | 合肥通用机械研究所压力容器检验站 | High-temperature high-flow rate naphthenic acid corrosion testing apparatus and testing method |
| JP2011051172A (en) * | 2009-08-31 | 2011-03-17 | Seiko Epson Corp | Liquid ejecting device |
| US20110303025A1 (en) * | 2010-05-10 | 2011-12-15 | MIC Corrosion Tek, LLC | Apparatus and methods for obtaining 3-phase (liquid, gas and solid) microbiological samples from pipes, pipelines, tanks and other vessels |
| US20120199255A1 (en) * | 2011-02-07 | 2012-08-09 | Dalmine S.P.A. | High strength steel pipes with excellent toughness at low temperature and sulfide stress corrosion cracking resistance |
| GB201212388D0 (en) * | 2012-07-12 | 2012-08-22 | Midland Corrosion Services Ltd | Crevice corrosion sensor |
| CN103616324A (en) * | 2013-11-12 | 2014-03-05 | 西安交通大学 | Multi-phase flow erosion corrosion test bed of humid H2S environment |
| CN105889753A (en) * | 2014-11-07 | 2016-08-24 | 重庆奥格美气体有限公司 | Cold-heat exchange system for industrial gas production |
| JP2016130681A (en) * | 2015-01-14 | 2016-07-21 | スガ試験機株式会社 | Spray corrosion testing machine and composite cycle testing machine |
| CN104914035A (en) * | 2015-06-02 | 2015-09-16 | 三峡大学 | Separated type full-automatic spraying drying and watering cycle testing device |
| CN204789275U (en) * | 2015-06-24 | 2015-11-18 | 广东电网有限责任公司电力科学研究院 | Test sprays experimental system to sulfur dioxide corrosive effects influence |
| CN204923972U (en) * | 2015-09-08 | 2015-12-30 | 洛阳明远石化技术有限公司 | Heat exchanger with nonmetal heat exchange assemblies |
| CN105651682A (en) * | 2016-03-28 | 2016-06-08 | 国网四川省电力公司电力科学研究院 | Soil corrosion simulation device and corrosion simulation method thereof for oil-gas pipelines |
| CN106153529A (en) * | 2016-08-31 | 2016-11-23 | 北京创然铝塑工业有限公司 | A kind of salt-mist corrosion tester and salt spray corrosion test method |
| CN106442289A (en) * | 2016-09-19 | 2017-02-22 | 中国北方车辆研究所 | Salt solution supplementing device |
| JP3210764U (en) * | 2017-03-24 | 2017-06-01 | スガ試験機株式会社 | Spray seal tester water seal cover |
| JP2019035564A (en) * | 2017-08-22 | 2019-03-07 | 株式会社コロナ | Heat pump apparatus |
| CN108489886A (en) * | 2018-03-07 | 2018-09-04 | 中国石油天然气集团有限公司 | A kind of gas storage tube corrosion simulator and the analogy method based on the device |
| CN110044190A (en) * | 2019-04-12 | 2019-07-23 | 北京朗博科科技发展有限公司 | A kind of enclosed heat exchange equipment of dry-wet integrated tube bank |
| CN109975153A (en) * | 2019-04-16 | 2019-07-05 | 天津大学 | A kind of injecting type stress-erosion corrosion test device |
| CN210198923U (en) * | 2019-04-23 | 2020-03-27 | 杭州佐帕斯工业有限公司 | Defrosting heating pipe spray corrosion test life test equipment |
| US20200386661A1 (en) * | 2019-06-04 | 2020-12-10 | Zhejiang University | Corrosion-fatigue-coupled test method and device for steel bridge deck |
| CN210294018U (en) * | 2019-07-26 | 2020-04-10 | 南京博泰新材料科技有限公司 | Pipe material object erosion corrosion test equipment |
| CN110542649A (en) * | 2019-10-14 | 2019-12-06 | 西南石油大学 | Multifunctional liquid single-phase flow flowing corrosion testing loop |
| CN111790985A (en) * | 2020-07-20 | 2020-10-20 | 兰州城市学院 | Novel laser welding device |
| CN213239875U (en) * | 2020-08-14 | 2021-05-18 | 山东聚合管业有限公司 | PE feed pipe aging testing device |
Non-Patent Citations (4)
| Title |
|---|
| LIU ZHIYUAN ET: "Effects of Grain Size on Fatigue Properties of K492 Superalloy", 《CHINESE JOURNAL OF MATERIALS RESEARCH》 * |
| MITRA AKHTARIZAVAREH ET,: "Plasma thermalsprayofceramicoxidecoatingoncarbonsteelwith enhanced wearandcorrosionresistanceforoilandgasapplications", 《CERAMICS INTERNATIONAL》 * |
| 张亮亮 等，: "转速对6082-T6 铝合金搅拌摩擦焊焊接接头织构的影响", 《焊接学报》 * |
| 苏国丰 等，: "普光气田集输***设备和管道腐蚀原因分析与防护", 《腐蚀与防护》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115127950A (en) * | 2022-07-27 | 2022-09-30 | 西南石油大学 | High-temperature high-pressure oil well pipe erosion corrosion device capable of achieving multi-section temperature control |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113466118B (en) | 2023-04-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107238566B (en) | Experimental device for simulating corrosion outside pipeline | |
| CN113466118A (en) | Corrosion test device for petroleum conveying equipment | |
| CN107179274B (en) | Simulate the experimental provision of pipeline corrosion | |
| CN110702595B (en) | Multifunctional automatic simulation test device for top corrosion of wet gas pipeline | |
| CN108961978A (en) | A kind of industrial circulating cooling water dynamic simulation system | |
| CN109078931A (en) | Dynamic simulation test device for chemical cleaning of two loops of high-temperature gas cooled reactor nuclear power unit and use method | |
| CN104880502A (en) | Simple stimulation apparatus for corrosion and electrochemistry tests in low speed pipeline | |
| CN207964582U (en) | The device of the lower compo pipe corrosion behavior in high-temperature water of subtest diffusible hydrogen effect | |
| CN103776755A (en) | Corrosion, soaking and drying experimental system for reinforced concrete | |
| CN112394023A (en) | Nuclear island equipment cooling water system material corrosion simulation device and use method thereof | |
| CN106525618A (en) | Flow corrosion testing device under axial fatigue load of scaling marine pipeline | |
| CN107576576A (en) | A kind of experimental system that the tubular specimen of supercritical water is connected with to inside and is loaded | |
| CN111289564A (en) | Device and method for simulating heat transfer and flow rules in hot oil spraying and heating process of oil storage tank | |
| CN204758458U (en) | Gathering line corrosion inhibitor rete evaluation test device | |
| CN106643993B (en) | Device for low-temperature test of water supply vertical pipe and water meter | |
| CN213986129U (en) | Nuclear island equipment cooling water system material corrodes analogue means | |
| CN113728399B (en) | Test system for simulating RPV heat exchange characteristics of nuclear power plant and heating temperature measuring equipment | |
| CN114318349A (en) | Test device and method for simulating corrosion and cathodic protection of inner wall of steel pipeline under flowing seawater | |
| CN111398153B (en) | Corrosion experiment device for simulating complex working conditions and application method thereof | |
| CN208680052U (en) | Dynamic simulation test device for chemical cleaning of secondary loop of high-temperature gas cooled reactor nuclear power unit | |
| CN108007853A (en) | A kind of earthing material corrosion testing apparatus and method in Simulated Soil Solution | |
| CN111562211A (en) | Online monitoring system for corrosion of inner wall of ocean oil and gas pipeline and processing and mounting method | |
| CN212007599U (en) | Data processing equipment based on hot user data intelligent algorithm system | |
| CN111058827B (en) | Underground channeling simulation monitoring system | |
| CN221124243U (en) | Laboratory static and dynamic multifactor coupling sewage corrosion evaluation device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |