Monitoring device

Abstract

The present invention belongs to the technical field of monitoring equipment for oil refining devices, and specifically relates to a monitoring device for solving the technical problem that maintenance personnel cannot timely discover abnormal conditions of a catalytic device, which easily leads to failure of the catalytic device and shutdown. The monitoring device includes a detection device, a controller, a server and a prompt device connected in sequence; the detection device is used to measure the outer wall temperature of the catalytic device; the controller receives the outer wall temperature, and calculates the corrosion thickness of the catalytic device according to the outer wall temperature, and uploads the outer wall temperature and the corresponding corrosion thickness to the server, and the server sends the outer wall temperature and the corresponding corrosion thickness to the prompt device; the prompt device is used to send a prompt message when the corrosion thickness reaches a preset thickness. The above-mentioned monitoring device can monitor the catalytic device in real time, so that maintenance personnel can timely understand the abnormal conditions of the catalytic device, and deal with the abnormal conditions as soon as possible to avoid shutdown caused by failure of the catalytic device.

Description

Technical Field

[0001] The invention relates to a monitoring device technology for an oil refining device, and in particular to a monitoring device. Background Art

[0002] Catalytic cracking is an important process in oil refining and the main means for heavy fractions in petrochemical industry to become lighter gasoline and diesel. The catalytic device includes a reactor and a regenerator. The crude oil entering the reactor decomposes under the action of high temperature and catalyst to generate gasoline and diesel. At the same time, coke accumulates on the surface of the catalyst under the action of the decomposition reaction. The catalyst with coke leaves the reactor with gasoline and diesel and enters the regenerator. The regenerator burns off the coke on the catalyst and restores the activity of the catalyst. Since the catalyst and oil are highly corrosive, the lining of the inner surface of the shell of the reactor and the regenerator is prone to corrosion, causing the catalytic device to malfunction.

[0003] In the related art, maintenance personnel need to regularly inspect the catalytic device. The maintenance personnel use a handheld measuring instrument to detect the shell thickness of the reactor and the regenerator, compare the data with the initial shell thickness, and then calculate the corrosion thickness of the lining, and then determine whether the catalytic device is abnormal.

[0004] However, due to the time intervals of manual inspection, maintenance personnel cannot promptly discover abnormal conditions of the catalytic device, which can easily lead to catalytic device failure and production suspension. Summary of the invention

[0005] The embodiment of the present invention provides a monitoring device to solve the technical problem that maintenance personnel cannot timely discover abnormal conditions of a catalytic device, which easily leads to failure of the catalytic device and shutdown of production.

[0006] An embodiment of the present invention provides a monitoring device, comprising a detection device, a controller, a server and a prompt device connected in sequence; the detection device is used to measure the outer wall temperature of a catalytic device; the controller receives the outer wall temperature measured by the detection device, calculates the corrosion thickness of the catalytic device based on the outer wall temperature, and uploads the outer wall temperature and the corresponding corrosion thickness of the catalytic device to the server, the server communicates with the prompt device, and is used to send the outer wall temperature and the corresponding corrosion thickness of the catalytic device to the prompt device; the prompt device is used to issue a prompt message when the corrosion thickness reaches a preset thickness.

[0007] The monitoring device as described above, wherein the monitoring device also includes a video shooting device and a display device; the video shooting device is used to obtain video images of the catalytic device; the video shooting device is connected to the controller, the controller receives the video images captured by the video shooting device, and uploads the video images to the server; the server communicates with the display device, and the server sends the video images captured by the video shooting device to the display device; the display device is used to play the video images.

[0008] The monitoring device as described above, wherein the monitoring device also includes a casing, the detection device, the controller and the video shooting device are integrated into a core, and the core is installed in the casing; and / or the prompt device and the display device are integrated into a mobile terminal or a computer.

[0009] The monitoring device as described above, wherein the housing includes a cylinder with openings at both ends, a front cover and a rear cover; the movement is accommodated in the cylinder; the front cover is arranged on the top opening of the cylinder, and a through hole is provided on the front cover, and the through hole is directly opposite to the probe of the detection device and the camera of the video shooting device; the rear cover is arranged on the bottom opening of the cylinder.

[0010] The monitoring device as described above, wherein the housing also includes a transparent cover and a gasket; a card slot connected to the through hole is provided on the inner side surface of the front cover, and the transparent cover is carded in the card slot; the gasket covers the inner side surface of the transparent cover, and the gasket is connected to the front cover; the movement is connected to the gasket, and a first light-transmitting hole is provided on the gasket, and the first light-transmitting hole is opposite to the camera of the video shooting device, and a second light-transmitting hole is also provided on the gasket, and the second light-transmitting hole is opposite to the probe of the detection device; the first light-transmitting hole cover is provided with a first light-transmitting sheet, and the second light-transmitting hole cover is provided with a second light-transmitting sheet.

[0011] The monitoring device as described above, wherein a sealing ring is provided between the rear cover and the cylinder.

[0012] The monitoring device as described above, wherein the housing further comprises a sunshade and a bracket, the bracket and the sunshade are both connected to the outer wall of the cylinder, and the bracket is opposite to the sunshade, and the sunshade covers the cylinder.

[0013] The monitoring device as described above, wherein the bracket includes a first plate body, a second plate body and a third plate body, the second plate body is opposite to the sunshade, the first plate body and the third plate body are oppositely arranged on both sides of the second plate body, and the first plate body and the second plate body are both connected to the outer wall of the cylinder.

[0014] The monitoring device as described above, wherein the housing further comprises a joint, the rear cover is provided with a mounting hole connected to the interior of the cylinder, the joint is connected to the hole wall of the mounting hole, the joint has a cavity inside, and the cable of the movement passes through the cavity.

[0015] In the monitoring device as described above, the controller is further used to fit multiple groups of outer wall temperatures acquired within a predetermined time period and corrosion thicknesses calculated based on each group of outer wall temperatures to establish a dynamic early warning curve.

[0016] The monitoring device provided by the embodiment of the present invention comprises a detection device, a controller, a server and a prompt device connected in sequence; the detection device is used to measure the outer wall temperature of the catalytic device; the controller receives the outer wall temperature, and calculates the corrosion thickness of the catalytic device according to the outer wall temperature, and uploads the outer wall temperature and the corresponding corrosion thickness to the server, and the server sends the outer wall temperature and the corresponding corrosion thickness to the prompt device; the prompt device is used to send a prompt message when the corrosion thickness reaches a preset thickness. The above-mentioned monitoring device can monitor the catalytic device in real time, so that maintenance personnel can timely understand the abnormal situation of the catalytic device and deal with the abnormal situation as soon as possible to avoid production suspension caused by catalytic device failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A schematic diagram of a catalytic device for oil refining in the related art;

[0019] Figure 2 A schematic diagram of a monitoring device provided by an embodiment of the present invention;

[0020] Figure 3 It is a structural schematic diagram of a reactor in a catalytic device in the related art;

[0021] Figure 4 It is a structural schematic diagram of a regenerator in a catalytic device in the related art;

[0022] Figure 5 A cross-sectional view of a housing in a monitoring device provided by an embodiment of the present invention;

[0023] Figure 6 A top view of a housing in a monitoring device provided by an embodiment of the present invention;

[0024] Figure 7 A bottom view of a housing in a monitoring device provided by an embodiment of the present invention;

[0025] Figure 8 for Figure 7 Middle AA section view;

[0026] Fig. 9 The monitoring device provided in the embodiment of the present invention monitors the dynamic early warning curve of the inclined pipe on the semi-regeneration inclined pipe.

[0027] Description of reference numerals:

[0028] 1: Catalytic device;

[0029] 2: Detection device;

[0030] 3: Controller;

[0031] 4: Server;

[0032] 5: Mobile terminal;

[0033] 6: Computer;

[0034] 7: Casing;

[0035] 8: Cable;

[0036] 11: Reactor;

[0037] 12: Regenerator;

[0038] 13: Rising pipe;

[0039] 71: cylinder;

[0040] 72: front cover;

[0041] 73: back cover;

[0042] 74: transparent cover;

[0043] 75: gasket;

[0044] 76: sealing ring;

[0045] 77: sunshade;

[0046] 78: Bracket;

[0047] 79: connector;

[0048] 111: upper inclined tube of external heat exchanger;

[0049] 112: external heat exchanger cylinder;

[0050] 121: semi-regenerative inclined tube upper inclined tube;

[0051] 122: Semi-regenerative inclined tube down inclined tube;

[0052] 123: Circumferential weld;

[0053] 721: through hole;

[0054] 751: first light transmission hole;

[0055] 752: second light transmission hole;

[0056] 781: first plate;

[0057] 782: second plate;

[0058] 783: The third plate. DETAILED DESCRIPTION

[0059] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0060] Please refer to Figure 1 , Figure 1 It is a schematic diagram of oil refining in a catalytic device in the related art. Figure 1 As shown, the catalytic device 1 includes a reactor 11 and a regenerator 12. Heavy crude oil enters the reactor 11 through a riser 13 and is decomposed under the action of high temperature and catalyst to generate light gasoline and diesel. At the same time, coke is formed on the surface of the catalyst through the decomposition reaction. The catalyst with coke and gasoline and diesel flow into the regenerator 12. The regenerator 12 burns off the coke on the catalyst, thereby restoring the activity of the catalyst and then flowing into the reactor 11 again for decomposition. Since the catalyst, crude oil, gasoline and diesel are all highly corrosive, the lining of the inner surface of the shell of the reactor 11 and the regenerator 12 is easily corroded, thereby causing failure.

[0061] In the related art, maintenance personnel use handheld measuring instruments to measure the shell thickness of the reactor 11 and the regenerator 12, and then calculate the corrosion thickness of the lining based on the comparison between the value and the initial shell thickness to determine whether the catalytic device 1 is abnormal.

[0062] Although maintenance personnel can obtain the corrosion thickness of the catalytic device 1 by measuring with a handheld measuring instrument, the manual inspection method has time intervals, and maintenance personnel cannot timely understand the abnormal conditions of the catalytic device 1, and cannot find and deal with the faults in time, resulting in the failure of the catalytic device 1 and shutdown, causing economic losses. Moreover, when the catalytic device 1 reaches a fault state, the device is severely damaged, making maintenance difficult. In addition, the size of the catalytic device 1 is large, and maintenance personnel need to climb up the catalytic device 1 for inspection, which has high labor intensity and safety hazards.

[0063] In view of this, the present application generally proposes a monitoring device, in which the monitoring device includes a detection device, a controller, a server and a prompt device connected in sequence, and the detection device is used to monitor the catalytic device 1 in real time without time intervals, so that maintenance personnel can timely understand the abnormal situation of the catalytic device 1 according to the prompt information displayed by the prompt device, and handle it, so as to avoid the catalytic device 1 from failing and stopping production, thereby avoiding huge economic losses. In addition, since the maintenance personnel can handle the abnormal situation of the catalytic device 1 as early as possible according to the prompt information, it can be avoided that the catalytic device 1 reaches a fault state before maintenance, and the maintenance difficulty is low. And by setting up a monitoring device to monitor the catalytic device 1, it can avoid maintenance personnel climbing the catalytic device 1 for manual monitoring, which reduces the labor intensity of maintenance personnel and alleviates personnel safety hazards.

[0064] Please refer to Figure 2 , Figure 2 Schematic diagram of a monitoring device provided by an embodiment of the present invention. Figure 1 and Figure 2 As shown, the monitoring device provided in this embodiment includes a detection device 2, a controller 3, a server 4 and a prompt device connected in sequence; the detection device 2 is used to measure the outer wall temperature of the catalytic device 1; the controller 3 receives the outer wall temperature measured by the detection device 2, and calculates the corrosion thickness of the catalytic device 1 according to the outer wall temperature, and uploads the outer wall temperature and the corresponding corrosion thickness of the catalytic device 1 to the server 4, the server 4 communicates with the prompt device, and is used to send the outer wall temperature and the corresponding corrosion thickness of the catalytic device 1 to the prompt device; the prompt device is used to send a prompt message when the corrosion thickness reaches a preset thickness.

[0065] Since the catalyst and crude oil react in the reactor 11 and the regenerator 12, the working environment inside the reactor 11 and the regenerator 12 is a high temperature, high pressure, and high corrosion state. In order to ensure that the detection device 2 can work normally, the detection device 2 can be set outside the catalytic device 1. Specifically, a scaffold can be set up at a distance of 8m-15m from the catalytic device, and the detection device 2 is set on the scaffold to perform non-contact temperature detection on the catalytic device 1. For example, the detection device 2 can be an infrared thermal imager, which can accurately measure the temperature of a test point at a long distance and has a wide range of applications. Of course, the detection device 2 can also be other examples in the relevant technology.

[0066] The detection device 2 can measure the outer wall temperature of the reactor 11 shell, and can also measure the outer wall temperature of the regenerator 12 shell. This embodiment does not limit the test point to be measured by the detection device 2, and the test point can be set by the maintenance personnel according to the actual working conditions. For example, please refer to Figure 3 , Figure 3 It is a schematic diagram of the structure of the reactor in the catalytic device in the related art; the point to be measured can be the inclined tube 111 on the outer heat exchanger in the reactor 11, or the cylinder 112 of the outer heat exchanger in the reactor 11. Please refer to Figure 4 , Figure 4 Schematic diagram of the structure of the regenerator in the catalytic device in the related art; the point to be tested may be the upper inclined tube 121 of the semi-regeneration inclined tube or the lower inclined tube 122 of the semi-regeneration inclined tube in the regenerator 12. In addition, the point to be tested may also be the annular weld 123 on the shell of the regenerator 12. Therefore, compared with the point to be tested being the lower inclined tube 122 of the semi-regeneration inclined tube, etc., since the weld or the melting line on the shell of the regenerator 12 is more susceptible to corrosion than other positions, by detecting the annular weld 123, the abnormal situation of the catalytic device 1 can be discovered earlier and handled.

[0067] The input end of the controller 3 is electrically connected to the output end of the detection device 2, and is used to receive the outer wall temperature measured by the detection device 2, and calculate the corrosion thickness of the catalyst device 1 according to the outer wall temperature. For example, the corrosion thickness ΔT of the catalyst device 1 can be calculated by the following formula:

[0068] ΔT=T s -{(t×F×ρ×E×0.23)÷(C×T m )}×1000

[0069] The meaning of each parameter in the above formula is:

[0070] T s T is the initial thickness of the point to be measured, in mm. s is a constant and can be obtained from the manual of the catalytic device 1.

[0071] t is the monitoring time period, in hours. t can be 0.5h, 1h, or 2h. The monitoring time period can be set by maintenance personnel based on actual working conditions and experience.

[0072] F is the flow rate of the medium flowing through the test point, in m 3 / h. Further, F can be calculated by the formula, that is, F=v×S; v is the flow rate of the medium flowing through the test point, which is obtained by using a flow rate detector arranged inside the test point; S is the flow area of ​​the test point, which can be obtained from the manual of the catalytic device 1.

[0073] ρ is the density of the medium flowing through the test point, in kg / m 3 , ρ is a constant and can be obtained based on the characteristic parameters of the medium flowing through the test point.

[0074] E is the enthalpy value of the medium flowing through the point to be measured, and the unit is KJ / Kg. E is a constant and can be obtained according to the characteristic parameters of the medium flowing through the point to be measured.

[0075] T m is the average outer wall temperature of the test point during the monitoring period, in °C, T m Detected by the detection device 2. For example, taking the test point as the upper inclined tube 121 of the semi-regeneration inclined tube, and the monitoring time period t as 1 month, the highest outer wall temperature of the upper inclined tube 121 of the semi-regeneration inclined tube within 1 month is 258°C, and the lowest outer wall temperature is 226°C, then T m It is 242℃.

[0076] C is the thermal conductivity of the material at the point to be measured, in units of W / (m.℃), and C is a constant that can be obtained based on the characteristic parameters of the material at the point to be measured. Taking the material of the regenerator 12 shell as carbon steel as an example, the thermal conductivity of carbon steel at different temperatures is shown in Table 1; illustratively, when the outer wall temperature of the regenerator 12 shell is 675℃, C is 29.7W / (m.℃).

[0077] Table 1

[0078]

[0079] It should be understood that the controller 3 may be a single chip microcomputer, a programmable logic controller 3 (hereinafter referred to as PLC), or an MCU chip (Microcontroller Unit).

[0080] Based on the above, the controller 3 calculates the corrosion thickness ΔT of the catalytic device 1 through a formula. This configuration saves the maintenance personnel from the calculation process.

[0081] The server 4 can be electrically connected to the controller 3 via a cable, or via wifi, or via Bluetooth, to receive the outer wall temperature and corresponding corrosion thickness of the test point transmitted by the controller 3. In an optional implementation, the server 4 is connected to the controller 3 via wifi to avoid the confusion of the production site caused by the cable routing at the production site.

[0082] Furthermore, a signal repeater can be set between the controller 3 and the server 4. The signal repeater serves as a signal bridge. When the signal sent by the controller 3 received by the server 4 is relatively weak, the stability and reliability of the signal transmission are ensured, thereby reducing the impact of the WiFi signal on the communication caused by the large size of the catalytic device 1 and the difficulty of covering the entire device.

[0083] The prompt device receives the outer wall temperature of the point to be measured and the corresponding corrosion thickness of the point to be measured, and sends a prompt message when the corrosion thickness reaches a preset thickness to prompt the maintenance personnel that the catalytic device 1 is corroded. The prompt message can be a sound message, a color message, a text message, or a combination of several messages. The prompt device can also be a mobile terminal 5 such as a mobile phone, a tablet (pad), a bracelet, or a desktop computer 6. For example, the prompt device is a mobile phone, and the prompt message is a color message. When the corrosion thickness of the point to be measured reaches a preset thickness, the mobile phone is displayed in red.

[0084] This embodiment does not limit the preset thickness, which can be set by maintenance personnel based on experience and actual needs, and the preset thickness is between the initial thickness and the maximum corrosion thickness that causes failure of the catalytic device 1. For example, the preset thickness is 7 mm.

[0085] The working process of the above-mentioned monitoring device is as follows: taking the measured point as the upper inclined tube 121 of the semi-regenerated inclined tube as an example, the detection device 2 is arranged on the scaffolding opposite the upper inclined tube 121 of the semi-regenerated inclined tube, and is used to measure the outer wall temperature of the upper inclined tube 121 of the semi-regenerated inclined tube, and send the outer wall temperature to the controller 3; the controller 3 receives the outer wall temperature of the upper inclined tube 121 of the semi-regenerated inclined tube, calculates through the formula, and obtains the corrosion thickness of the upper inclined tube 121 of the semi-regenerated inclined tube, and uploads the outer wall temperature and corrosion thickness data of the upper inclined tube 121 of the semi-regenerated inclined tube to the server 4; the server 4 sends the outer wall temperature and corrosion thickness data of the upper inclined tube 121 of the semi-regenerated inclined tube to the prompt device, and the prompt device sends a prompt message when it determines that the corrosion thickness reaches the preset thickness; the maintenance personnel know that the upper inclined tube 121 of the semi-regenerated inclined tube has been corroded according to the prompt message, and then repairs the upper inclined tube 121 of the semi-regenerated inclined tube to avoid continued corrosion of the upper inclined tube 121 of the semi-regenerated inclined tube and cause production stoppage.

[0086] The monitoring device provided in this embodiment includes a detection device 2, a controller 3, a server 4 and a prompt device connected in sequence; the detection device 2 is used to measure the outer wall temperature of the catalytic device 1; the controller 3 receives the outer wall temperature measured by the detection device 2, and calculates the corrosion thickness of the catalytic device 1 according to the outer wall temperature, and uploads the outer wall temperature and the corresponding corrosion thickness of the catalytic device 1 to the server 4, the server 4 communicates with the prompt device, and is used to send the outer wall temperature and the corresponding corrosion thickness of the catalytic device 1 to the prompt device; the prompt device is used to send a prompt message when the corrosion thickness reaches a preset thickness. The above-mentioned monitoring device can monitor the catalytic device 1 in real time, so that maintenance personnel can timely understand the abnormal situation of the catalytic device 1, and deal with the abnormal situation as soon as possible, so as to avoid production suspension caused by the failure of the catalytic device 1, and thus avoid huge economic losses.

[0087] In addition, since the maintenance personnel can handle the abnormal situation of the catalytic device 1 as early as possible according to the prompt information, it can avoid the catalytic device 1 reaching a fault state before maintenance, and the maintenance difficulty is low. And by setting a monitoring device to monitor the catalytic device 1, it can avoid the maintenance personnel climbing the catalytic device 1 for manual monitoring, reducing the labor intensity of the maintenance personnel and alleviating the potential safety hazards of personnel.

[0088] Optionally, there may be multiple detection devices 2, all of which are electrically connected to the controller 3, and the multiple detection devices 2 are distributed on scaffolds facing each point to be tested of the catalytic device 1 to achieve comprehensive monitoring.

[0089] The monitoring device also includes a video camera and a display device; the video camera is used to obtain video images of the catalyst device 1; the video camera is connected to the controller 3, the controller 3 receives the video images captured by the video camera and uploads the video images to the server 4; the server 4 communicates with the display device, the server 4 sends the video images captured by the video camera to the display device; the display device is used to play the video images. In this way, the video camera can be used to obtain the video images of the test point on the catalyst device 1 in real time, so that the maintenance personnel can understand the situation of the test point.

[0090] In order to ensure that the video shooting device can work normally, the video shooting device can be set up outside the catalytic device 1. Specifically, a scaffold can be set up at a distance of 8m-15m from the catalytic device, and the video shooting device is set on the scaffold to shoot the image of the point to be tested. Among them, the video shooting device can be a visible light sensor or a camera, and this embodiment does not limit this. The display device can be an LED display screen or an LCD display screen; further, the prompt device and the display device can be integrated into a mobile terminal 5 or a computer 6, so that the mobile terminal 5 or the computer 6 can be used to simultaneously display the captured video image and the prompt information, which is convenient for maintenance personnel to view.

[0091] Please refer to Figures 2 to 7 , Figure 5 A cross-sectional view of a housing in a monitoring device provided by an embodiment of the present invention; Figure 6 A top view of a housing in a monitoring device provided by an embodiment of the present invention; Figure 7 The bottom view of the housing in the monitoring device provided by the embodiment of the present invention. The monitoring device also includes a housing 7, and the detection device 2, the controller 3 and the video shooting device are integrated into a core, which is installed in the housing 7. When in use, the housing 7 is installed on the scaffolding facing the point to be measured, so that the outer wall temperature of the point to be measured can be measured and video images can be shot, which is convenient for maintenance personnel to install and manage.

[0092] Exemplarily, the controller 3 is an integrated circuit board (Printed Circuit Board, PCB), the detection device 2 is an infrared thermal imager, the video shooting device is a visible light sensor, the infrared thermal imager is connected to the integrated circuit board through a cable, and the visible light sensor is soldered on the integrated circuit board, thereby achieving integration.

[0093] like Figure 5 As shown, the housing 7 may specifically include a cylinder 71 with openings at both ends, a front cover 72 and a rear cover 73; the movement is accommodated in the cylinder 71; the front cover 72 is arranged to cover the top opening of the cylinder 71, and a through hole 721 is provided on the front cover 72, and the through hole 721 is directly opposite to the probe of the detection device 2 and the camera of the video shooting device; the rear cover 73 is arranged to cover the bottom opening of the cylinder 71. Such an arrangement prevents the movement from being exposed to the outside to protect the movement. When in use, the housing 7 is installed on a scaffold directly opposite to the point to be tested, and the front end of the cylinder 71 is directly opposite to the point to be tested, so that the probe of the detection device 2 and the camera of the video shooting device are not blocked.

[0094] There is a accommodating cavity inside the cylinder 71. The movement can be stuck inside the cylinder 71, or a mesh support bracket can be set inside the cylinder 71. The mesh support bracket is connected to the inner wall of the cylinder 71. A grid is set on the mesh support bracket to avoid blocking the probe of the detection device 2 and the camera of the video shooting device.

[0095] The front cover 72 and the rear cover 73 can be a plate-like structure, a block-like structure or a flange ring, which is not limited in this embodiment. The connection between the front cover 72 and the top of the cylinder 71 and the connection between the rear cover 73 and the bottom of the cylinder 71 can be welding, screwing, or integrally formed by casting. It is worth noting that the connection between the front cover 72 and the top of the cylinder 71 and the connection between the rear cover 73 and the bottom of the cylinder 71 cannot be fixedly connected at the same time, so that the movement can be accommodated inside the cylinder 71 from the opening at the top of the cylinder 71 or from the opening at the bottom of the cylinder 71.

[0096] The housing 7 further includes a transparent cover plate 74. A slot communicating with the through hole 721 is provided on the inner side of the front cover 72. The transparent cover plate 74 is locked in the slot. In this way, the transparent cover plate 74 blocks the through hole 721, so that the inside of the cylinder 71 becomes a closed cavity, so as to prevent foreign impurities from entering the inside of the cylinder 71 and blocking the probe of the detection device 2 or the camera of the video shooting device, and also prevent the impurities from damaging the movement.

[0097] The transparent cover plate 74 can be made of colorless glass, transparent PVC (polyvinyl chloride), or other transparent materials; further, the slot wall of the card slot can be coated with epoxy resin adhesive to make the connection between the transparent cover plate 74 and the front cover 72 more reliable and enhance the sealing. Of course, the transparent cover plate 74 can also directly cover the inner side of the front cover 72, as long as it can block the through hole 721.

[0098] In addition, continue to refer to Figure 5 and Figure 6 The housing 7 further includes a gasket 75, which covers the inner side of the transparent cover plate 74 and is connected to the front cover 72; the movement is connected to the gasket 75, and a first light-transmitting hole 751 is provided on the gasket 75, and the first light-transmitting hole 751 is directly opposite to the camera of the video shooting device, and a second light-transmitting hole 752 is also provided on the gasket 75, and the second light-transmitting hole 752 is directly opposite to the probe of the detection device 2. By providing the gasket 75, on the one hand, the gasket 75 is connected to the movement to fix the movement; on the other hand, the gasket 75 covers the transparent plate, thereby improving the sealing performance.

[0099] The gasket 75 can be connected to the front cover 72 by welding or by screwing, and this embodiment does not limit this. As an optional method, the gasket 75 can be made of metal materials such as stainless steel and carbon steel. In this case, a plurality of threaded holes are provided on the gasket 75, and a plurality of connecting columns are installed on the movement. One end of each connecting column is provided with a thread that matches the threaded hole, and each connecting column matches a threaded hole, so that the movement and the gasket 75 are screwed; or, the movement can also be connected to the gasket 75 by welding. As another optional method, the gasket 75 can also be made of materials such as plastic and rubber. In this case, a plurality of penetration holes are provided on the gasket 75, and a plurality of connecting columns are installed on the movement. Each connecting column passes through a penetration hole and is directly connected to the inner side of the front cover 72, wherein the gasket 75 made of materials such as plastic and rubber plays a role of sealing and buffering.

[0100] It can be understood that the first light-transmitting hole 751 and the second light-transmitting hole 752 can be regular shapes such as round, square, etc., or can be other irregular shapes. The first light-transmitting hole 751 and the second light-transmitting hole 752 are provided to avoid blocking the probe of the detection device 2 and the camera of the video shooting device.

[0101] In order to further improve the sealing performance inside the cylinder 71 and prevent dust and water vapor in the outside air from entering the cylinder 71 and thus affecting the electrical performance of the movement, a first light-transmitting sheet can be provided on the first light-transmitting hole 751, and a second light-transmitting sheet can be provided on the second light-transmitting hole 752. Among them, the first light-transmitting sheet and the second light-transmitting sheet can both be colorless glass sheets, transparent PVC sheets or polyetheretherketone sheets; the preferred implementation of this embodiment is that the first light-transmitting sheet is a colorless glass sheet, and the second light-transmitting sheet is a germanium glass lens. Germanium glass has good light-transmitting performance and is not easy to react with acidic air and water. Furthermore, an optical film can be coated on the germanium glass lens to increase the transmittance of the germanium glass lens, reduce the reflectivity of the germanium glass lens, and ensure the detection accuracy of the detection device 2 (such as an infrared thermal imager).

[0102] In addition, a sealing ring 76 may be provided between the rear cover 73 and the cylinder 71 to improve the sealing performance between the rear cover 73 and the cylinder 71. Specifically, the sealing ring 76 may be in a ring shape, connected to the cylinder 71, and an inner wall of the sealing ring 76 is provided with an internal thread. The rear cover 73 is a plate-shaped structure, and an annular flange is provided on the rear cover 73. The outer side surface of the annular flange is provided with an external thread that matches the internal thread, so that the rear cover 73 and the sealing ring 76 are screwed.

[0103] Continue to refer to Figures 5 to 7 On the basis of the above embodiment, the housing 7 further includes a sunshade 77 and a bracket 78, both of which are connected to the outer wall of the cylinder 71, and the bracket 78 is opposite to the sunshade 77, and the sunshade 77 covers the cylinder 71. By setting the bracket 78, the bracket 78 is used to connect with the scaffolding to fix the housing 7; the sunshade 77 can block sunlight from irradiating the housing 7, so as to prevent the electrical performance of the movement from being affected by the temperature rise under the sunlight.

[0104] The material of the sunshade 77 can be aluminum alloy or stainless steel; the sunshade 77 can be a square or circular plate structure. The preferred implementation of this embodiment is that the sunshade 77 is in an arc shape to match the shape of the cylinder 71, so that the housing 7 is more beautiful as a whole, and the arc surface is more conducive to airflow. In addition, the sunshade 77 can be connected to the cylinder 71 by a first fastening bolt, or by a clamping method, and this embodiment does not limit this.

[0105] Specifically, the bracket 78 may include a first plate 781, a second plate 782 and a third plate 783 connected in sequence, the second plate 782 is opposite to the sunshade 77, the first plate 781 and the third plate 783 are oppositely arranged on both sides of the second plate 782, the first plate 781 and the second plate 782 are both connected to the outer wall of the cylinder 71, and in this way, the second plate 782 is connected to the scaffolding, so that the housing 7 can be stably fixed on the scaffolding. Figures 5 to 7 As shown, the first plate 781 can be connected to the outer wall of the cylinder 71 by a second fastening bolt, and the third plate 783 can be connected to the outer wall of the cylinder 71 by a third fastening bolt.

[0106] Reference Figure 7 and Figure 8 , Figure 8 for Figure 7 Sectional view taken along the AA axis. A power interface and a cable 8 connected to the power interface are also provided on the integrated circuit board. The cable 8 is connected to an external power source to provide power to the detection device 2, the controller 3 and the video shooting device. In order to facilitate the routing of the cable 8, the housing 7 also includes a connector 79. A mounting hole connected to the interior of the cylinder 71 is provided on the back cover 73. The connector 79 is connected to the hole wall of the mounting hole. The connector 79 has a cavity inside, and the cable 8 of the movement passes through the cavity. Exemplarily, the connector 79 can be an explosion-proof cable clamping sealing connector, which is not only waterproof and dustproof and sealable, but also can be quickly disassembled for easy maintenance and replacement; or, the connector 79 is another example in the related art.

[0107] Please refer to Figures 2 to 9 , Fig. 9 The monitoring device provided in the embodiment of the present invention monitors the dynamic warning curve of the inclined tube on the semi-regeneration inclined tube. Based on the above embodiment, the controller 3 is also used to fit the multiple groups of outer wall temperatures obtained in a predetermined time period and the corrosion thickness calculated according to each group of outer wall temperatures to establish a dynamic warning curve (i.e. Fig. 9 By establishing a dynamic early warning curve, it is convenient for maintenance personnel to understand the outer wall temperature and corrosion thickness of the test point within a predetermined time period, and it is convenient for maintenance personnel to predict the corrosion condition of the test point according to the trend of the dynamic early warning curve.

[0108] It is understood that the fitting tool can be a commercial software tool, such as Matlab or Ansys, as long as it can perform numerical analysis. In addition, this embodiment does not limit the predetermined time period, and the predetermined time period can be set by the maintenance personnel based on experience and actual working conditions, for example, the predetermined time period is half a month or one month.

[0109] The fitting data can be N groups of data from all outer wall temperatures detected by the detection device 2 within a predetermined time period and the corrosion temperature calculated based on each group of outer wall temperatures in the N groups, where N is a positive integer greater than 1; the fitting data can also be all outer wall temperatures detected by the detection device 2 within a predetermined time period and the corrosion thickness calculated based on each group of outer wall temperatures. The number of sample groups fitted is large, which improves the accuracy of the dynamic warning curve and the accuracy of the corrosion thickness prediction of the test point.

[0110] In order to improve the strength of the catalytic device 1, a protective layer is provided on the shell of the catalytic device 1, such as the shell of the reactor 11 and the shell of the regenerator 12, to increase the thickness of the shell and reduce the influence of corrosion on the thickness of the shell. Fig. 9 The controller 3 is also used to fit the outer wall temperatures of multiple groups of catalytic devices 1 with protective layers obtained within a predetermined time period and the corrosion thickness calculated according to the outer wall temperatures of each group to establish a tracking warning curve (i.e. Fig. 9 By establishing a tracking warning curve and comparing the tracking warning curve with the dynamic warning curve, the difference between the corrosion thickness of the catalyst device 1 with a protective layer and the corrosion thickness of the catalyst device 1 without a protective layer can be obtained to determine the influence of the protective layer on the catalyst device 1.

[0111] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0112] In the present invention, unless otherwise clearly defined, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral molding, it can be a mechanical connection, it can be an electrical connection, or it can communicate with each other; it can be a direct connection, or it can be indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0113] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A monitoring device, characterized in that: It includes a detection device, a controller, a server and a prompting device connected in sequence; The detection device is used to measure the outer wall temperature of the test point of the catalytic device; wherein the test point includes the upper inclined tube of the external heat exchanger of the reactor of the catalytic device, the cylinder of the external heat exchanger of the reactor, the upper inclined tube of the semi-regeneration inclined tube of the regenerator of the catalytic device, the lower inclined tube of the semi-regeneration inclined tube of the regenerator, and the annular weld on the regenerator shell; The controller receives the outer wall temperature measured by the detection device, calculates the corrosion thickness of the catalytic device according to the outer wall temperature, and uploads the outer wall temperature and the corresponding corrosion thickness of the catalytic device to the server. The controller is also used to fit multiple groups of the outer wall temperatures obtained within a predetermined time period and the corrosion thickness calculated according to each group of the outer wall temperatures to establish a dynamic early warning curve; The server communicates with the prompt device and is used to send the outer wall temperature and the corresponding corrosion thickness of the catalytic device to the prompt device; The prompt device is used to issue a prompt message when the corrosion thickness reaches a preset thickness; The monitoring device also includes a video shooting device and a display device; The video shooting device is used to obtain a video image of the catalytic device; The video shooting device is connected to the controller, and the controller receives the video image shot by the video shooting device and uploads the video image to the server; The server communicates with the display device, and the server sends the video image captured by the video capture device to the display device; The display device is used to play the video image; The monitoring device also includes a casing, wherein the detection device, the controller and the video shooting device are integrated into a core, and the core is installed in the casing; and / or, the prompt device and the display device are integrated into a mobile terminal or a computer.

2. The monitoring device according to claim 1, characterized in that: The housing comprises a cylinder with openings at both ends, a front cover and a rear cover; The movement is accommodated in the cylinder; The front cover is arranged on the top opening of the cylinder, and a through hole is arranged on the front cover, and the through hole is directly opposite to the probe of the detection device and the camera of the video shooting device; The rear cover is arranged on the bottom opening of the cylinder.

3. The monitoring device according to claim 2, characterized in that: The housing further comprises a transparent cover plate and a gasket; a slot communicating with the through hole is provided on the inner side surface of the front cover, and the transparent cover plate is clamped in the slot; The gasket covers the inner side of the transparent cover plate, and the gasket is connected to the front cover; The movement is connected to the gasket, and a first light-transmitting hole is provided on the gasket, and the first light-transmitting hole is directly opposite to the camera of the video shooting device, and a second light-transmitting hole is also provided on the gasket, and the second light-transmitting hole is directly opposite to the probe of the detection device; The first light-transmitting hole cover is provided with a first light-transmitting sheet, and the second light-transmitting hole cover is provided with a second light-transmitting sheet.

4. The monitoring device according to claim 2, characterized in that: A sealing ring is arranged between the rear cover and the cylinder body.

5. The monitoring device according to any one of claims 2 to 4, characterized in that: The housing further comprises a sunshade and a bracket, wherein the bracket and the sunshade are both connected to the outer wall of the cylinder, and the bracket is opposite to the sunshade, and the sunshade covers the cylinder.

6. The monitoring device according to claim 5, characterized in that: The bracket includes a first plate body, a second plate body and a third plate body, the second plate body is opposite to the sunshade, the first plate body and the third plate body are oppositely arranged on both sides of the second plate body, and the first plate body and the second plate body are both connected to the outer wall of the cylinder body.

7. The monitoring device according to any one of claims 2 to 4, characterized in that: The housing also includes a joint, the back cover is provided with a mounting hole connected to the interior of the cylinder, the joint is connected to the hole wall of the mounting hole, the joint has a cavity inside, and the cable of the movement passes through the cavity.

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