Safety detection equipment for chemical storage tank

Abstract

The utility model discloses chemical storage tank safety detection equipment which comprises a storage tank body, a floating roof is arranged at the top of the storage tank body, first fiber grating sensors are installed on the inner wall of the top of the storage tank body at equal intervals, and a second fiber grating sensor is installed at the bottom end of the floating roof. An integrated radar level meter is installed at the top end of the storage tank body, a guide rail is arranged on the outer side of the storage tank body, a first detection support is arranged above the guide rail, and a three-dimensional laser scanner is installed at the top end of the first detection support. According to the utility model, multi-source heterogeneous data fusion is adopted, the blind area of traditional single-dimensional monitoring is solved, the problems of unclear storage tank deformation mechanism, unknown reasons and the like can be effectively solved, a series of'clamping 'problems of incapability of predicting storage tank deformation failure, incapability of quantitatively evaluating storage tank deformation failure risks and the like are solved, and the stability, the safety and the reliability of storage tank operation are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to chemical industry security check technical field, concretely is a kind of chemical storage tank safety detection equipment. BACKGROUND

[0002] Large-scale dangerous chemical outer floating roof storage tank is a kind of chemical storage tank, mainly used for storing volatile petroleum products, such as crude oil, gasoline or kerosene, etc. This kind of storage tank is usually an open cylindrical steel structure, and the floating roof floats up and down with the increase and decrease of the stored liquid. There is an annular space between the floating roof and the tank wall. This annular space has a sealing device to isolate the liquid in the tank from the atmosphere when the floating roof floats up and down on the cover, thereby greatly reducing the evaporation loss of the stored liquid during storage.

[0003] Large-scale dangerous chemical outer floating roof storage tank has a risk, and needs to be checked regularly. The traditional detection relies on manual inspection and single-point sensor (such as liquid level meter), which has a detection blind area and cannot monitor the multi-dimensional parameters of the storage tank (such as floating roof deformation, weld stress and wind load response) in real time. The existing equipment lacks multi-physical field coupling modeling capability and cannot predict the structural deterioration trend under long-term complex load, resulting in high risk of sudden failure. The existing equipment cannot solve the problems of unclear deformation mechanism of the storage tank, unknown reasons, etc. It is difficult to solve a series of "neck" problems such as unpredictable deformation failure of the storage tank and quantifiable evaluation of the risk of deformation failure of the storage tank, which is not conducive to the stability, safety and reliability of the operation of the storage tank. Therefore, we propose a chemical storage tank safety detection equipment. SUMMARY

[0004] The utility model aims at providing a kind of chemical storage tank safety detection equipment to solve the problems raised in the above background.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a kind of chemical storage tank safety detection equipment, including storage tank body, the top of the storage tank body is provided with floating roof, the inner wall on the top of the storage tank body is equipped with first fiber grating sensor at equal intervals, the bottom of the floating roof is equipped with second fiber grating sensor, the top of the storage tank body is equipped with integrated radar level meter, the outside of the storage tank body is provided with guide rail, the top of the guide rail is provided with first detection support, and the top of the first detection support is equipped with three-dimensional laser scanner, the inside of the guide rail is equipped with second detection support, and the top of the second detection support is equipped with wind speed sensor, and the outer wall on the second detection support is equipped with explosion-proof type temperature and humidity sensor, one side of the bottom of the second detection support is equipped with seismic accelerometer, the outside of the guide rail is equipped with control cabinet, and the inside of the control cabinet is equipped with multi-core processor and LSTM neural network module respectively, and the top of the control cabinet is equipped with alarm.

[0006] Preferably, the accuracy of the first and second fiber grating sensors is ±1με, and the liquid level accuracy of the integrated radar level gauge is ±0.5mm.

[0007] Preferably, the deformation resolution of the three-dimensional laser scanner is ±1mm, and the range of the wind speed sensor is 0-60m / s.

[0008] Preferably, the frequency response of the explosion-proof temperature and humidity sensor and the seismic accelerometer is 0.1-100Hz.

[0009] Preferably, the scanning frequency of the three-dimensional laser scanner is 10Hz.

[0010] Preferably, a display screen is mounted on the outer wall of the top of the control cabinet, and control buttons are mounted on the outer wall of the control cabinet below the display screen.

[0011] Preferably, four groups of electric rollers are mounted on the two sides of the bottom end of the first detection support, and the electric rollers are tightly attached to the outer wall of the top of the guide rail.

[0012] Preferably, the guide rail is of a ring structure, and the guide rail is engaged with the bottom end of the first detection support.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] The first and second fiber grating sensors are arranged on the inner wall of the storage tank body and the bottom end of the floating roof to monitor the circumferential stress concentration area, the tank body is dynamically detected by the integrated radar level gauge, the three-dimensional laser scanner and the wind speed sensor, the environment sensing detection is carried out by the explosion-proof temperature and humidity sensor and the seismic accelerometer, the multi-core processor is arranged in the control cabinet, the finite element simulation kernel is run in real time, the wind-liquid-structure coupling effect is dynamically analyzed, the light-weight AI model is deployed by the LSTM neural network module, and the deformation trend of the storage tank is predicted; based on the storage tank parameters such as material and size, the high-fidelity finite element model is generated, the dynamic simulation is driven by inputting real-time sensing data through the control buttons, the multi-core processor calculates the stress and deformation distribution, the device adopts multi-source heterogeneous data fusion, and the blind area of traditional single-dimensional monitoring is solved. The device can effectively solve the problems of unclear deformation mechanism and unknown reasons of the storage tank, solve a series of "neck-stiffening" problems such as the inability to predict the deformation failure of the storage tank and the inability to quantitatively evaluate the deformation failure risk of the storage tank, and improve the stability, safety and reliability of the operation of the storage tank. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a front view of the cross-sectional structure of the utility model;

[0016] Figure 2The second detection support amplification structure schematic view of the utility model is shown in the figure.

[0017] Figure 3 The control cabinet amplification structure schematic view of the utility model is shown in the figure.

[0018] Figure 4 The control cabinet amplification structure schematic view of the utility model is shown in the figure. Figure 1 The control cabinet amplification structure schematic view of the utility model is shown in the figure.

[0019] Figure 5 The guide rail overhead structure schematic view of the utility model is shown in the figure.

[0020] In the figure: 1, tank body; 2, guide rail; 3, first detection support; 4, three-dimensional laser scanner; 5, first fiber grating sensor; 6, floating roof; 7, second fiber grating sensor; 8, second detection support; 9, control cabinet; 10, wind speed sensor; 11, explosion-proof temperature and humidity sensor; 12, seismic accelerometer; 13, display screen; 14, control button; 15, alarm; 16, multi-core processor; 17, LSTM neural network module; 18, electric roller; 19, integrated radar level gauge. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the utility model.

[0022] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the utility model.

[0023] Please refer to Figures 1-5The utility model provides a kind of chemical storage tank safety detection equipment of embodiment: a kind of chemical storage tank safety detection equipment, including storage tank body 1, the top of storage tank body 1 is provided with floating roof 6, the inner wall on the top of storage tank body 1 is equipped with first fiber grating sensor 5 of equal interval, the bottom end of floating roof 6 is equipped with second fiber grating sensor 7, the top of storage tank body 1 is equipped with integrated radar level gauge 19, the outside of storage tank body 1 is provided with guide rail 2, the top of guide rail 2 is provided with first detection support 3, and the top of first detection support 3 is equipped with three-dimensional laser scanner 4;

[0024] The inside of guide rail 2 is equipped with second detection support 8, and the top of second detection support 8 is equipped with wind speed sensor 10, and the outer wall of second detection support 8 is equipped with explosion-proof temperature and humidity sensor 11, one side of the bottom of second detection support 8 is equipped with seismic accelerometer 12, the outside of guide rail 2 is equipped with control cabinet 9, and the inside of control cabinet 9 is respectively equipped with multi-core processor 16 and LSTM neural network module 17, and the top of control cabinet 9 is equipped with alarm 15;

[0025] Specifically, the first fiber grating sensor 5 and the second fiber grating sensor 7 are arranged on the inner wall of the storage tank body 1 and the bottom end of the floating roof 6 with a precision of ±1 με, and the circumferential stress concentration area, such as the weld, is monitored. Secondly, the tank body is dynamically detected by the integrated radar level gauge 19, the three-dimensional laser scanner 4 and the wind speed sensor 10. The three-dimensional laser scanner 4 moves circumferentially along the guide rail 2 under the driving action of the electric roller 18.

[0026] The precision of the first fiber grating sensor 5 and the second fiber grating sensor 7 is ±1 με, the liquid level precision of the integrated radar level gauge 19 is ±0.5 mm, the deformation resolution of the three-dimensional laser scanner 4 is ±1 mm, the range of the wind speed sensor 10 is 0-60 m / s, the frequency response of the explosion-proof temperature and humidity sensor 11 and the seismic accelerometer 12 is 0.1-100 Hz, and the scanning frequency of the three-dimensional laser scanner 4 is 10 Hz.

[0027] The outer wall of the top of the control cabinet 9 is equipped with a display screen 13, and the outer wall of the control cabinet 9 below the display screen 13 is equipped with control buttons 14.

[0028] Specifically, the environment sensing detection is performed by the explosion-proof temperature and humidity sensor 11 and the seismic accelerometer 12, the multi-core processor 16 is arranged in the control cabinet 9 to run the finite element simulation kernel in real time, the wind-liquid-structure coupling effect is dynamically analyzed, and the lightweight AI model is deployed by the LSTM neural network module 17 to predict the deformation trend of the storage tank.

[0029] Based on the parameters of the storage tank, such as material, size, a high-fidelity finite element model is generated, real-time sensing data is input through the control button 14 to drive dynamic simulation, and the stress and deformation distribution is calculated by the multi-core processor 16. The device adopts multi-source heterogeneous data fusion, laser point cloud (spatial deformation) based on the three-dimensional laser scanner 4, optical fiber strain (local stress) based on the first and second optical fiber grating sensors 5 and 7, and dynamic load based on the integrated radar level meter 19, solving the blind area of traditional single-dimensional monitoring.

[0030] Four groups of electric rollers 18 are installed on both sides of the bottom end of the first detection support 3, and the electric rollers 18 are closely attached to the outer wall of the top of the guide rail 2; the guide rail 2 is in the form of a ring, and the guide rail 2 is engaged with the bottom end of the first detection support 3.

[0031] The application embodiment is used as follows: first, the first fiber grating sensor 5 and the second fiber grating sensor 7 are arranged on the inner wall of the tank body 1 and the bottom end of the floating roof 6 with an accuracy of ± tank body 1με, to monitor the circumferential stress concentration area, such as the weld; second, the tank body is dynamically detected by the integrated radar level gauge 19, the three-dimensional laser scanner 4 and the wind speed sensor 10, wherein the three-dimensional laser scanner 4 moves circumferentially along the guide rail 2 under the driving action of the electric roller 18, the environment is sensed and detected by the explosion-proof temperature and humidity sensor 11 and the seismic accelerometer 12, the multi-core processor 16 is arranged in the control cabinet 9, the finite element simulation kernel is run in real time, the wind-liquid-structure coupling effect is dynamically analyzed, the light-weight AI model is deployed by the LSTM neural network module 17, and the deformation trend of the tank is predicted; based on the tank parameters such as material and size, a high-fidelity finite element model is generated, the dynamic simulation is driven by inputting real-time sensing data through the control button 14, the multi-core processor 16 calculates the stress and deformation distribution, the device adopts multi-source heterogeneous data fusion, the laser point cloud (spatial deformation) based on the three-dimensional laser scanner 4, the fiber strain (local stress) based on the first fiber grating sensor 5 and the second fiber grating sensor 7, and the dynamic load based on the integrated radar level gauge 19, to solve the blind area of traditional single-dimensional monitoring. The application models the high-fidelity multi-physical field of the large hazardous chemical external floating roof tank, studies the deformation failure mechanism of the large hazardous chemical external floating roof tank under long-term complex load, analyzes the influence law of various loads on the deformation failure of the tank, predicts the deformation trend of the tank under long-term complex load, proposes the deformation failure risk evaluation technology of the large hazardous chemical external floating roof tank, effectively solves the problems of unclear deformation mechanism and unknown reasons of the tank, solves the problems of unpredictable deformation failure of the tank and unquantifiable evaluation of the deformation failure risk of the tank, and improves the stability, safety and reliability of the tank operation, ensures the smooth implementation of national major projects, promotes the high-quality development of the risk evaluation technology of domestic large hazardous chemical external floating roof tanks, and promotes the development of domestic equipment and the progress of industry technology. In addition, the deformation failure risk evaluation technology of the large hazardous chemical external floating roof tank proposed in the project has a certain reference for the deformation failure risk evaluation of other types of large pressure vessels. Through the patent, the chemical tank detection technology can be changed from “after-treatment” to “pre-prediction”, and core technical equipment is provided for major hazard source control.

[0032] Obviously, the above-described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor should belong to the scope protected by the utility model.

Claims

1. A chemical storage tank safety detection device, comprising a storage tank body (1), a floating roof (6) is arranged on the top of the storage tank body (1), characterized in that, The inner wall of the top of the storage tank body (1) is provided with first fiber grating sensors (5) at equal intervals, the bottom end of the floating roof (6) is provided with second fiber grating sensors (7), the top end of the storage tank body (1) is provided with an integrated radar level gauge (19), the outer side of the storage tank body (1) is provided with a guide rail (2), the upper side of the guide rail (2) is provided with a first detection support (3), the top end of the first detection support (3) is provided with a three-dimensional laser scanner (4), the inner side of the guide rail (2) is provided with a second detection support (8), the top end of the second detection support (8) is provided with a wind speed sensor (10), the outer wall of the second detection support (8) is provided with an explosion-proof temperature and humidity sensor (11), one side of the bottom of the second detection support (8) is provided with a seismic accelerometer (12), the outer side of the guide rail (2) is provided with a control cabinet (9), the inner side of the control cabinet (9) is respectively provided with a multi-core processor (16) and an LSTM neural network module (17), and the top end of the control cabinet (9) is provided with an alarm (15).

2. The chemical storage tank safety detection equipment according to claim 1, characterized in that: The first fiber grating sensors (5) and the second fiber grating sensors (7) have an accuracy of ±1με, and the integrated radar level gauge (19) has a liquid level accuracy of ±0.5mm.

3. The chemical storage tank safety detection device according to claim 1, characterized in that: The three-dimensional laser scanner (4) has a deformation resolution of ±1mm, and the wind speed sensor (10) has a range of 0-60m / s.

4. The chemical storage tank safety detection device according to claim 1, characterized in that: The explosion-proof temperature and humidity sensor (11) and the seismic accelerometer (12) have a frequency response of 0.1-100Hz.

5. The chemical storage tank safety detection device according to claim 1, characterized in that: The scanning frequency of the three-dimensional laser scanner (4) is 10Hz.

6. The chemical storage tank safety detection device according to claim 1, characterized in that: The outer wall of the top of the control cabinet (9) is provided with a display screen (13), and the outer wall of the control cabinet (9) below the display screen (13) is provided with control buttons (14).

7. The chemical storage tank safety detection device according to claim 1, characterized in that: Four groups of electric rollers (18) are arranged on both sides of the bottom end of the first detection support (3), and the electric rollers (18) are closely attached to the outer wall of the top of the guide rail (2).

8. The chemical storage tank safety detection device according to claim 1, characterized in that: The guide rail (2) has a ring structure, and the guide rail (2) is engaged with the bottom end of the first detection support (3).

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