CN210533958U - Visualization device for scaling corrosion of tower top system of crude oil distillation device - Google Patents
Visualization device for scaling corrosion of tower top system of crude oil distillation device Download PDFInfo
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- CN210533958U CN210533958U CN201921530128.3U CN201921530128U CN210533958U CN 210533958 U CN210533958 U CN 210533958U CN 201921530128 U CN201921530128 U CN 201921530128U CN 210533958 U CN210533958 U CN 210533958U
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Abstract
The utility model belongs to the technical field of oil refining equipment corrodes management and control, a visual device that crude oil distillation plant top of tower system scale deposit corrodes is disclosed. The visualization device comprises a temperature sensor C, a high-magnification camera and a computer, the visualization device is arranged on a bypass simulation oil-gas pipeline of the tower top system, the tower top system comprises a distillation tower, a crude oil-gas heat exchanger, a first-stage tank, an air cooler, a water cooler, a second-stage tank and a product pump which are sequentially connected, the pipeline between the distillation tower and the crude oil-gas heat exchanger is an oil-gas volatilization pipeline, the bypass simulation oil-gas pipeline is a branch pipeline led out by the oil-gas volatilization pipeline, and an auxiliary agent tank and an injection pump are arranged on the oil-gas volatilization pipeline on the downstream of the distillation tower. The device is practical, simple in process flow and convenient to operate, can realize visual automatic monitoring on the corrosion process of the tower top system of the distillation device, and realizes visual simulation on corrosion and scaling of the volatile line of the tower top system.
Description
Technical Field
The utility model belongs to the technical field of oil refining device corrodes management and control, the utility model particularly relates to a crude oil distillation plant top of tower system scale deposit is corroded visualization device.
Background
Due to the complexity of the physical and chemical properties of the crude oil, in the refining process, the crude oil generates corrosive media under the environmental effects of high temperature, high pressure and the like, and is easy to generate scaling corrosion phenomena on equipment, so that the safe operation of an oil refining device is seriously influenced, the service life of the device is shortened, the device can even be stopped and scrapped in serious conditions, the production benefit and safety management of enterprises are seriously influenced, and the problem is more prominent along with the deterioration of the crude oil.
The corrosion and scaling phenomena of the crude oil distillation device mainly occur in the device, are difficult to directly observe and describe, corrosion investigation is usually required to be carried out during shutdown and overhaul of the device, the working time span is long, the workload is large, a large amount of manpower and material resources are consumed, the corrosion condition cannot be monitored in real time, and the corrosion process and the mechanism cannot be intuitively known. If can utility model a crude oil distillation unit top of the tower system scale deposit corruption's visualization device, just can observe the scale deposit corrosion process of distillation unit top of the tower system, help further research scale deposit corruption's basic law, promote the study of corrosion mechanism.
SUMMERY OF THE UTILITY MODEL
In order to overcome the not enough of prior art, the utility model aims at providing a crude oil distillation plant top of the tower system scale deposit corrodes visualization device, the device is practical, and process flow is simple, and convenient operation can realize visual automatic monitoring to distillation plant top of the tower system corrosion process, has realized the visual simulation to the volatile spool line corrosion scale deposit of top of the tower system.
The utility model aims at realizing through the following technical scheme:
the utility model provides a crude oil distillation plant top of the tower system scale deposit visual device that corrodes, visual device includes temperature sensor C, high magnification camera and computer, and this visual device establishes on the bypass simulation oil gas pipeline of top of the tower system, top of the tower system is including distillation column, crude oil-oil gas heat exchanger, one-level jar, air cooler, water cooler, second grade jar and the product pump of connecting gradually, and the pipeline that is located between distillation column and the crude oil-oil gas heat exchanger is the oil gas pipeline that volatilizees, and bypass simulation oil gas pipeline is the branch road pipeline that oil gas volatilizees the pipeline and draws forth, and auxiliary agent jar, injection pump are established on the oil gas pipeline that the distillation column low reaches volatilizees. A pressure gauge and a thermometer are also arranged on the distillation tower.
The bypass simulation oil-gas pipeline is connected with the temperature sensor C and the high magnification camera and is connected to the computer through a lead; the high magnification camera is used for recording the generation and growth change processes of the scale crystals in the bypass simulation oil and gas pipeline, and the temperature sensor C is used for monitoring the temperature change inside the bypass simulation oil and gas pipeline in real time and judging the generation temperature change of the scale crystals.
The bottom of the first-stage tank and the second-stage tank are respectively provided with a temperature sensor, an online pH meter sensor, an online ion detection sensor and a pressure sensor which are connected with a computer through leads.
Furthermore, the bypass simulation oil and gas pipeline is made of transparent toughened glass, can resist the temperature of 300 ℃ at most, has the compressive strength of 1.0MPa, and has corrosion resistance.
Furthermore, control valves are arranged at two ends of the bypass simulation oil-gas pipeline.
The auxiliary agent tank is used for storing auxiliary agents, the auxiliary agents are injected into an oil gas volatilization pipeline from the top of the distillation tower through an injection pump, and the corrosion condition of the top of the distillation tower is controlled by adjusting the dosage of the auxiliary agents;
under the condition of not influencing the normal production of the device, the auxiliary agent in the auxiliary agent tank is injected into the oil gas volatilization pipeline through the injection pump, and the flow of the auxiliary agent is adjusted; recording the formation and growth processes of scale crystals in the bypass simulation oil-gas pipeline by using a high-multiple camera through the bypass simulation oil-gas pipeline led out from an oil-gas volatilization line, observing the growth speed of the bypass simulation oil-gas pipeline, and simultaneously detecting the temperature of the bypass simulation oil-gas pipeline by using a computer to determine the internal relation between the formation and growth of the scale crystals and the system temperature; the temperature, pressure, pH value and ion content value at the bottoms of the primary tank and the secondary tank are fed back to the corrosion rate of the system, and the system is linked with the recording condition of the high-multiple camera to control the corrosion rate of the system, so that the visual simulation of the scaling corrosion process of the distillation tower top system is realized.
Compared with the prior art, the utility model beneficial effect be:
the corrosion visualization research is currently more and more important, and is applied to the aspects of pipeline gathering, transportation, storage and the like of the development of upstream oil and gas fields, and the corrosion visualization technology of the downstream oil refining device cannot be developed due to the special environmental reasons of high temperature, high pressure, sealing and the like, so that the development of the corrosion mechanism, control, management, safety and the like of the oil refining device is also influenced. The device of the utility model is simple in structure, process flow is simple, and convenient operation can realize intelligence, visual monitoring, can realize visual automatic monitoring to distillation plant top of the tower system corrosion process, can accurate monitoring simulate the whole process that top of the tower system scale deposit corrodes, has realized the visual simulation to the volatile spool line corrosion scale deposit of top of the tower system, has important meaning to the principle and the mechanism of studying distillation plant top of the tower system scale deposit corruption.
Drawings
Fig. 1 is a schematic structural diagram of the device of the present invention.
In the figure, 1, a distillation tower, 2, a pressure gauge, 3, a thermometer, 4, control valves A, 5, control valves B, 6, a bypass simulation oil-gas pipeline, 7, a high magnification camera, 8, a crude oil-oil gas heat exchanger, 9, a primary tank, 10, an air cooler, 11, a water cooler, 12, a secondary tank, 13, a product pump, 14, a computer, 15, temperature sensors A, 16, online pH meter sensors A, 17, online ion detection sensors A, 18, pressure sensors A, 19, temperature sensors B, 20, online pH meter sensors B, 21, online ion detection sensors B, 22, pressure sensors B, 23, an auxiliary agent tank, 24, an injection pump, 25, an oil-gas volatilization pipeline, 26 and a temperature sensor C.
Detailed Description
The present invention will be described in detail with reference to the following embodiments, but the scope of the invention is not limited thereto. Unless otherwise stated, the experimental methods adopted by the utility model are all conventional methods, and experimental devices, materials, reagents and the like can be obtained from commercial sources.
Example 1
The utility model provides a crude oil distillation plant top of tower system scale deposit corroded visualization device, visualization device includes temperature sensor C26, high magnification camera 7 and computer 14, and this visualization device establishes on top of tower system's bypass simulation oil gas pipeline 6, top of tower system is including distillation column 1, crude oil-oil gas heat exchanger 8, one-level jar 9, air cooler 10, water cooler 11, second grade jar 12 and product pump 13 that connect gradually, and the pipeline that is located between distillation column 1 and the crude oil-oil gas heat exchanger 8 is oil gas volatilization pipeline 25, and bypass simulation oil gas pipeline 6 is the branch pipeline that oil gas volatilization pipeline 25 was drawn forth, and auxiliary agent jar 23, injection pump 24 are established on distillation column 1 low reaches oil gas volatilization pipeline 25. The distillation tower 1 is also provided with a pressure gauge 2 and a temperature gauge 3.
The bypass simulation oil-gas pipeline 6 is connected with a temperature sensor C26 and a high magnification camera 7 and is connected to the computer 14 through a lead; the high magnification camera 7 is used for recording the generation and growth change processes of the scale crystals in the bypass simulation oil-gas pipeline 6 and transmitting corresponding data to the computer 14; the temperature sensor C26 is used for monitoring the temperature change inside the bypass simulation oil-gas pipeline 6 in real time and judging the temperature change generated by the scale crystals.
The bottom of the first-stage tank and the second-stage tank are respectively provided with a temperature sensor A15, a temperature sensor B19, a pressure sensor A18, a pressure sensor B22, an online pH meter sensor A16, an online pH meter sensor B20, an online ion detection sensor A17 and an online ion detection sensor B21, and the temperature sensor A15, the online pH meter sensor A16, the online ion detection sensor A17 and the pressure sensor A18 in the first-stage tank 9 can monitor the bottom temperature, the pH value, the ion content and the pressure change and transmit data to the computer 14 through leads; the temperature sensor A19, the online pH meter sensor A20, the online ion detection sensor A21 and the pressure sensor A22 in the secondary tank 12 act on the same-stage tank.
The crude oil-oil gas heat exchanger 8, the air cooler 10 and the water cooler 11 play a role in medium heat exchange.
Furthermore, control valves are arranged at two ends of the bypass simulation oil-gas pipeline 6. The control valve is divided into a control valve A and a control valve B; the control valve A and the control valve B are made of temperature-resistant, pressure-resistant and corrosion-resistant materials and are used for medium to pass through.
The scale formation corrosion of the tower top system of the crude oil distillation device is automatically monitored by using a visual device; the concrete steps are as follows;
the first step is as follows: adjuvant injection and conditioning procedure
And (3) injecting an auxiliary agent into an oil gas volatilization line 4 of the distillation tower 1 from an auxiliary agent tank 23 through an injection pump 24, and monitoring the temperature of the system through a pressure gauge 2 and a temperature gauge 3. Data recorded by the online pH meter sensor A16, the online ion detection sensor A17, the online pH meter sensor B20 and the online ion detection sensor B21 in the primary tank 9, the online pH meter sensor B17 and the online ion detection sensor B21 in the secondary tank 12 can reflect the corrosion rate of the system, and the corrosion rate of the system is controlled by adjusting the flow rate of the auxiliary agent.
The second step is that: corrosion visualization recording and feedback program
The oil-gas pipeline 6 is simulated by a bypass from the oil-gas volatilization line 4, and the temperature sensor C26 and the high magnification camera 7 are connected at the same time, and the computer 14 is connected. The high magnification camera 7 records the generation, growth and change processes of the scale crystals in the bypass simulation oil-gas pipeline 6 and transmits corresponding data to the computer 14. The temperature sensor C26 is used for monitoring the temperature change inside the bypass simulation oil-gas pipeline 6 in real time and judging the relation of the scale crystal generation process along with the temperature change.
The detailed results are: the forming temperature of the scale crystals of the tower top system is generally distributed between 115 ℃ and 135 ℃, different raw materials, properties, operating parameters, types of auxiliaries and the like have great difference on the temperature influence on the formation of the scale crystals, the whole process of scale formation and corrosion of the tower top system is accurately monitored and simulated, and the visual simulation of the corrosion and scale formation of the volatile line of the tower top system is realized.
The embodiments described above are only preferred embodiments of the present invention, and are not all possible embodiments of the present invention. Any obvious modifications to the above would be obvious to those of ordinary skill in the art, but would not bring the invention so modified beyond the spirit and scope of the present invention.
Claims (4)
1. A visualization device for scaling and corrosion of a tower top system of a crude oil distillation device is characterized by comprising a temperature sensor C (26), a high magnification camera (7) and a computer (14), the visualization device is arranged on a bypass simulation oil-gas pipeline (6) of a tower top system, the tower top system comprises a distillation tower (1), a crude oil-oil gas heat exchanger (8), a primary tank (9), an air cooler (10), a water cooler (11), a secondary tank (12) and a product pump (13) which are sequentially connected, the pipeline between the distillation tower (1) and the crude oil-oil gas heat exchanger (8) is an oil-gas volatilization pipeline (25), the bypass simulation oil-gas pipeline (6) is a branch pipeline led out from the oil-gas volatilization pipeline (25), and an auxiliary agent tank (23) and an injection pump (24) are arranged on the oil-gas volatilization pipeline (25) at the downstream of the distillation tower (1); a pressure gauge (2) and a thermometer (3) are also arranged on the distillation tower (1); the bypass simulation oil-gas pipeline (6) is connected with a temperature sensor C (26) and a high magnification camera (7) and is connected to the computer (14) through a lead.
2. The device for visualizing the scaling corrosion of the tower top system of the crude distillation unit as claimed in claim 1, wherein the bottom of the primary tank (9) and the bottom of the secondary tank (12) are respectively provided with a temperature sensor, an online pH meter sensor, an online ion detection sensor and a pressure sensor, and are connected with the computer (14) through leads.
3. The visualization device for the scaling corrosion of the tower top system of the crude oil distillation unit as claimed in claim 1, wherein the bypass simulated oil and gas pipeline (6) is made of transparent toughened glass.
4. The visualization device for the scaling corrosion of the tower top system of the crude oil distillation unit as claimed in claim 1, wherein the two ends of the bypass analog oil-gas pipeline (6) are provided with control valves.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921530128.3U CN210533958U (en) | 2019-09-12 | 2019-09-12 | Visualization device for scaling corrosion of tower top system of crude oil distillation device |
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| CN201921530128.3U CN210533958U (en) | 2019-09-12 | 2019-09-12 | Visualization device for scaling corrosion of tower top system of crude oil distillation device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110487710A (en) * | 2019-09-12 | 2019-11-22 | 北京赛福贝特能源技术服务有限公司 | A kind of visualization device of crude(oil)unit overhead system fouling corrosion |
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2019
- 2019-09-12 CN CN201921530128.3U patent/CN210533958U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110487710A (en) * | 2019-09-12 | 2019-11-22 | 北京赛福贝特能源技术服务有限公司 | A kind of visualization device of crude(oil)unit overhead system fouling corrosion |
| CN110487710B (en) * | 2019-09-12 | 2024-09-24 | 北京赛福贝特能源技术服务有限公司 | Visualization device for scaling corrosion of crude oil distillation device tower top system |
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