A monitoring and early warning method and system for atmospheric pressure storage tanks of hazardous chemicals

Abstract

The present invention discloses a monitoring and early warning method and system for atmospheric pressure storage tanks for hazardous chemicals, and the method includes the following steps: S1, collecting real-time operation data of liquid medium in atmospheric pressure storage tanks, tank bottom settlement monitoring data, and storage tank expiration inspection information; S2, flexibly setting fixed parameters and early warning parameters of each atmospheric pressure storage tank according to the number of atmospheric pressure storage tanks; S3, calculating the loss rate of liquid medium in atmospheric pressure storage tanks according to the collected operation data; S4, judging whether there is an early warning situation, giving different early warning levels and issuing early warnings, and sending early warning data to the client in real time. The present invention compares and judges the real-time loss rate of atmospheric pressure storage tanks and the standard loss rate corresponding to the temperature in the tank, gives different early warning levels and issues early warnings, and issues early warning information in combination with the inspection situation of the storage tanks, thereby enabling more accurate and real-time monitoring and early warning of atmospheric pressure storage tanks for hazardous chemicals. It is convenient for detection personnel to take countermeasures according to different early warning levels.

Description

Technical Field

[0001] The present invention belongs to the technical field of monitoring and early warning, and in particular relates to a monitoring and early warning method and system for atmospheric pressure storage tanks for hazardous chemicals. Background Art

[0002] Atmospheric pressure storage tanks refer to steel welded storage tanks with a design pressure of less than 0.1MPa, built on the ground, and storing non-artificially refrigerated, non-highly toxic liquid media such as petroleum and chemicals. In the case of severe safety precautions for hazardous chemicals, how to effectively and quickly realize abnormal detection and early warning of atmospheric pressure storage tanks for hazardous chemicals is of great significance. Traditional detection and early warning of atmospheric pressure storage tanks for hazardous chemicals are based on client software with C / S architecture for display and early warning, which cannot meet the needs of real-time remote detection and early warning. With the rapid upgrading and development of mobile Internet technology, the processing and transmission of big data has become more convenient and faster. Remote detection and early warning based on the Internet is no longer a difficult point, and detection and early warning messages of atmospheric pressure storage tanks for hazardous chemicals can be transmitted in real time through the Internet.

[0003] The real-time detection data of sensors in routine inspections of atmospheric pressure storage tanks for hazardous chemicals are displayed and warned on the client side based on the C / S architecture, which can no longer meet the timeliness requirements for safety monitoring of atmospheric pressure storage tanks for hazardous chemicals under the current circumstances. In addition, the current single warning method has limitations, and the relevant personnel responsible for safety cannot understand and grasp the most timely information in real time, and thus cannot make the most timely and effective safety protection measures. The Chinese invention patent with application number CN202011382496.5 discloses an automated monitoring and early warning method and system for atmospheric pressure storage tanks for hazardous chemicals. Although it can realize automatic collection, efficient data transmission and intelligent early warning of monitoring data of hazardous chemical storage tanks within a wide area network, it cannot judge different warning levels, and the accuracy is not high enough, which makes it inconvenient for detection personnel to take countermeasures according to different warning levels. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the present invention provides a monitoring and early warning method and system for atmospheric pressure storage tanks for hazardous chemicals.

[0005] In order to achieve the above-mentioned object of the invention, the technical solution adopted by the present invention is:

[0006] A method for monitoring and early warning of atmospheric pressure storage tanks for hazardous chemicals is provided, comprising the following steps:

[0007] S1. Collect real-time operation data of liquid medium in atmospheric pressure storage tanks, tank bottom settlement monitoring data, and storage tank expiration inspection information;

[0008] S2. Flexibly set the fixed parameters and warning parameters of each atmospheric pressure storage tank according to the number of atmospheric pressure storage tanks;

[0009] S3. Calculate the loss rate of the liquid medium in the atmospheric pressure storage tank according to the collected operation data;

[0010] S4. Determine whether there is a warning situation based on the collected real-time operation data and the loss rate of the liquid medium in the atmospheric pressure storage tank;

[0011] S5: Compare the collected atmospheric pressure tank bottom settlement monitoring data and tank expiration inspection information with standard parameters, and give different warning levels and warnings in combination with the judgment results of S4, and send the warning data to the client in real time. Tank bottom settlement monitoring and tank expiration inspection can be used for warning 1-2 months in advance.

[0012] Furthermore, in step S1, the height, temperature and pressure of the liquid medium in the tank are collected using a liquid level meter, an in-tube thermometer and a pressure sensor.

[0013] Furthermore, in step S2, the fixed parameters of the atmospheric pressure storage tanks include the type, label, standard density, standard loss, tank space coordinate information, tank height, and tank diameter of the liquid medium introduced into each atmospheric pressure storage tank.

[0014] Furthermore, in step S3, the loss rate is calculated in units of 60 seconds according to the height of the liquid medium in the tank collected by the liquid level meter, and the calculated data is updated in real time.

[0015] Further, in step S4, the real-time loss rate and the standard loss rate corresponding to the temperature in the tank are compared and judged. If the ratio is ≤1, the safety level is obtained and the data is updated in real time; if 1<ratio, it is determined whether there is an operation task or maintenance task in the current atmospheric pressure storage tank. If so, no warning is generated. If not, the warning level is judged according to the ratio. If 1<ratio≤A, the attention level is obtained. If A<ratio, the warning level is obtained. According to the formula:

[0016]

[0017] Obtain a judgment value A; wherein q is the standard loss rate corresponding to each liquid medium per unit time, R is the radius inside the tank, π is the pi, and h is the initial height of the liquid medium in the tank.

[0018] Provided is a monitoring and early warning system for atmospheric pressure storage tanks of hazardous chemicals, comprising:

[0019] The acquisition module is used to collect real-time operation data of the liquid medium in the atmospheric pressure storage tank, tank bottom settlement monitoring data, and storage tank expiration inspection information;

[0020] The parameter setting module is used to flexibly set the fixed parameters and warning parameters of each atmospheric pressure storage tank according to the number of atmospheric pressure storage tanks;

[0021] The loss rate calculation module is used to calculate the loss rate in units of 60 seconds based on the height of the liquid medium in the tank collected by the liquid level meter, and update the calculated data in real time;

[0022] The early warning module is used to determine whether there is an early warning situation based on the collected real-time operation data and the loss rate of the liquid medium in the atmospheric pressure storage tank; compare the collected atmospheric pressure storage tank bottom settlement monitoring data and the tank expiration inspection information with the standard parameters, and give different early warning levels and issue early warnings based on the loss rate judgment results, and send the early warning data to the client in real time.

[0023] Furthermore, the acquisition module includes:

[0024] The height acquisition submodule is used to obtain the height of the liquid medium in the tank using a liquid level gauge;

[0025] The temperature acquisition submodule is used to obtain the temperature inside the tank using an in-tube thermometer;

[0026] The pressure acquisition submodule is used to obtain the pressure inside the tank using a pressure sensor.

[0027] The settlement monitoring data acquisition submodule is used to obtain the settlement information of the tank body by using a laser range finder sensor, and to obtain the tilt angle and tilt direction of the tank body by using a tilt sensor;

[0028] The due inspection information collection submodule is used to obtain the maintenance and modification records, annual inspection records, safety accessory inspection records, regular inspection information, and inspection plan information of the storage tank.

[0029] Furthermore, the parameter setting module includes:

[0030] The tank fixed parameter setting submodule is used to set and store the type, label, standard density, standard loss, tank space coordinate information, tank height, and tank diameter of the liquid medium imported into each normal pressure tank;

[0031] The warning parameter setting submodule is used to set the corresponding warning level according to the loss rate.

[0032] Furthermore, the early warning module includes:

[0033] The judgment submodule is used to compare the real-time loss rate with the standard loss rate corresponding to the temperature in the tank and judge the ratio thereof;

[0034] The update submodule is used to issue an early warning or update according to the ratio; if the ratio is ≤1, the safety level is obtained and the data is updated in real time; if 1<ratio, it is determined whether there is an operation task or maintenance task for the current atmospheric pressure storage tank. If so, no early warning is generated. If not, the early warning level is determined according to the ratio. If 1<ratio≤A, the attention level is obtained. If A<ratio, the warning level is obtained. According to the formula:

[0035]

[0036] Obtain a judgment value A; wherein q is the standard loss rate corresponding to each liquid medium per unit time, R is the radius inside the tank, π is the pi, and h is the initial height of the liquid medium in the tank.

[0037] The early warning submodule is used to compare the collected atmospheric pressure storage tank bottom settlement monitoring data and tank expiration inspection information with the standard parameters, give different early warning levels and issue early warnings based on the loss rate judgment results, and send the early warning data to the client in real time.

[0038] The beneficial effects of the present invention are:

[0039] The present invention compares and judges the real-time loss rate of the atmospheric pressure storage tank and the standard loss rate corresponding to the temperature inside the tank, and gives different warning levels and issues warnings in combination with the inspection of the storage tank and the settlement of the tank bottom, thereby enabling more accurate and real-time monitoring and warning of atmospheric pressure storage tanks for hazardous chemicals. It is convenient for detection personnel to take countermeasures according to different warning levels. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 is a schematic diagram of the process of this method;

[0041] Figure 2 This is the structural block diagram of this system. DETAILED DESCRIPTION

[0042] The specific implementation modes of the present invention are described below so that those skilled in the art can understand the present invention. However, it should be clear that the present invention is not limited to the scope of the specific implementation modes. For those of ordinary skill in the art, as long as various changes are within the spirit and scope of the present invention as defined and determined by the attached claims, these changes are obvious, and all inventions and creations utilizing the concept of the present invention are protected.

[0043] Example 1

[0044] Reference Figure 1 , a monitoring and early warning method for atmospheric pressure storage tanks of hazardous chemicals, comprising the following steps:

[0045] S1. Use liquid level meter, in-tube thermometer and pressure sensor to collect real-time operating data of height, temperature and pressure of liquid medium in the tank; use laser range finder to obtain the settlement information of the tank, and use inclination sensor to obtain the tilt angle and tilt direction of the tank; obtain the maintenance and renovation records, annual inspection records, safety accessories inspection records, regular inspection information and inspection plan information of the storage tank.

[0046] S2. Flexibly set the fixed parameters and warning parameters of each atmospheric pressure storage tank according to the number of atmospheric pressure storage tanks; the fixed parameters of atmospheric pressure storage tanks include the type, label, standard density, standard loss, tank space coordinate information, tank height, and tank diameter of the liquid medium introduced into each atmospheric pressure storage tank.

[0047] S3. Calculate the loss rate in units of 60 seconds based on the height of the liquid medium in the tank collected by the liquid level meter, and update the calculated data in real time.

[0048] S4. Combine the collected real-time operation data and the loss rate of the liquid medium in the atmospheric pressure storage tank to determine whether there is an early warning situation. Specifically, compare the real-time loss rate with the standard loss rate corresponding to the temperature in the tank. If the ratio is ≤1, the safety level is obtained and the data is updated in real time. If 1 < the ratio, determine whether there is an operation task or maintenance task in the current atmospheric pressure storage tank. If so, no early warning is generated. If not, continue to judge the early warning level according to the ratio. If 1 < the ratio ≤ A, the attention level is obtained. If A < the ratio, the warning level is obtained. According to the formula:

[0049]

[0050] Obtain a judgment value A; wherein q is the standard loss rate corresponding to each liquid medium per unit time, R is the radius inside the tank, π is the pi, and h is the initial height of the liquid medium in the tank.

[0051] Specifically, in this embodiment, the atmospheric pressure storage tank for hazardous chemicals is an oil storage tank, and the volume of the oil storage tank is set to 30m 3 , the original oil storage capacity is 10m 3 , oil storage capacity is 10m 3 The corresponding liquid level value is 10m.

[0052] When the oil storage tank has an operating task, the liquid flow value at the oil storage tank oil port = oil pump discharge value x prime mover speed.

[0053] For example, the oil pump discharge volume is 1m 3 / rev, the speed of the prime mover is 1 rev / min, then within 60 seconds, the liquid flow value at the oil tank outlet = 1m 3 / rev × 1 rev / min = 1m 3 ; That is, the standard loss rate of the oil tank within 60 seconds is 1m3 / min.

[0054] The real-time loss rate of the oil storage tank = the real-time liquid level value of the oil storage tank / the original liquid level value of the oil storage tank. For example, if the real-time liquid level height of the oil storage tank is detected to be 9m, then within 60 seconds, the real-time loss rate of the oil storage tank = 9 / 10 < 1, and the safety level is obtained.

[0055] Bring the data in, That is, 1 is less than the ratio of the real-time consumption rate of the oil storage tank to the standard consumption rate. It is used to determine whether there is an operation task or maintenance task for the current atmospheric pressure storage tank. If so, no warning is generated. If not, the warning level is determined based on the ratio. If 1 is less than the ratio ≤ 31 / 30, the attention level is obtained. If 31 / 30 is less than the ratio, the warning level is obtained.

[0056] In the embodiments of the present application, the specific standards of the safety level, attention level, and warning level are standards that can be judged and understood by technicians in this field based on common knowledge.

[0057] The subsidence of the tank bottom is mainly caused by the pressure change and displacement of the ground surface under the tank or its foundation, which results in the tank being deformed or cracked due to excessive external force. If the subsidence is slight, it generally does not cause major adverse consequences. However, if the subsidence continues to develop, it should be closely monitored and further investigated and analyzed.

[0058] In this embodiment, the collected atmospheric tank bottom settlement monitoring data and tank expiration inspection information are compared with standard parameters, and an early warning is issued 1-2 months in advance. Different early warning levels are given and early warnings are issued in combination with the S4 loss rate judgment results, and the early warning data is sent to the client in real time.

[0059] Example 2

[0060] Embodiment 2 is a parallel embodiment of Embodiment 1, and mainly describes the structure and function of the monitoring and early warning system for atmospheric pressure storage tanks of hazardous chemicals:

[0061] The acquisition module is used to collect real-time operation data of the liquid medium in the atmospheric pressure storage tank, tank bottom settlement monitoring data, and storage tank expiration inspection information;

[0062] The parameter setting module is used to flexibly set the fixed parameters and warning parameters of each atmospheric pressure storage tank according to the number of atmospheric pressure storage tanks;

[0063] The loss rate calculation module is used to calculate the loss rate in units of 60 seconds based on the height of the liquid medium in the tank collected by the liquid level meter, and update the calculated data in real time;

[0064] The early warning module is used to determine whether there is an early warning situation based on the collected real-time operation data and the loss rate of the liquid medium in the atmospheric pressure storage tank; compare the collected atmospheric pressure storage tank bottom settlement monitoring data and the tank expiration inspection information with the standard parameters, and give different early warning levels and issue early warnings based on the loss rate judgment results, and send the early warning data to the client in real time.

[0065] The acquisition module includes:

[0066] The height acquisition submodule is used to obtain the height of the liquid medium in the tank using a liquid level gauge;

[0067] The temperature acquisition submodule is used to obtain the temperature inside the tank using an in-tube thermometer;

[0068] The pressure acquisition submodule is used to obtain the pressure inside the tank using a pressure sensor.

[0069] The settlement monitoring data acquisition submodule is used to obtain the settlement information of the tank body by using a laser range finder sensor, and to obtain the tilt angle and tilt direction of the tank body by using a tilt sensor;

[0070] The due inspection information collection submodule is used to obtain the maintenance and modification records, annual inspection records, safety accessory inspection records, regular inspection information, and inspection plan information of the storage tank.

[0071] The parameter setting module includes:

[0072] The tank fixed parameter setting submodule is used to set and store the type, label, standard density, standard loss, tank space coordinate information, tank height, and tank diameter of the liquid medium imported into each normal pressure tank;

[0073] The warning parameter setting submodule is used to set the corresponding warning level according to the loss rate.

[0074] The early warning module includes:

[0075] The judgment submodule is used to compare the real-time loss rate with the standard loss rate corresponding to the temperature in the tank and judge the ratio thereof;

[0076] The update submodule is used to issue an early warning or update according to the ratio; if the ratio is ≤1, the safety level is obtained and the data is updated in real time; if 1<ratio, it is determined whether there is an operation task or maintenance task for the current atmospheric pressure storage tank. If so, no early warning is generated. If not, the early warning level is determined according to the ratio. If 1<ratio≤A, the attention level is obtained. If A<ratio, the warning level is obtained. According to the formula:

[0077]

[0078] Obtain a judgment value A; wherein q is the standard loss rate corresponding to each liquid medium per unit time, R is the radius inside the tank, π is the pi, and h is the initial height of the liquid medium in the tank.

[0079] The early warning submodule is used to compare the collected atmospheric pressure storage tank bottom settlement monitoring data and tank expiration inspection information with the standard parameters, give different early warning levels and issue early warnings based on the loss rate judgment results, and send the early warning data to the client in real time.

[0080] The present invention compares and judges the real-time loss rate of the atmospheric pressure storage tank and the standard loss rate corresponding to the temperature inside the tank, and gives different warning levels and issues warnings in combination with the inspection of the storage tank and the settlement of the tank bottom, thereby enabling more accurate and real-time monitoring and warning of atmospheric pressure storage tanks for hazardous chemicals. It is convenient for detection personnel to take countermeasures according to different warning levels.

[0081] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0082] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A monitoring and early warning method for atmospheric pressure storage tanks of hazardous chemicals, characterized in that: The following steps are involved: S1. Collect real-time operation data of liquid medium in atmospheric pressure storage tanks, tank bottom settlement monitoring data, and storage tank expiration inspection information; S2. Flexibly set the fixed parameters and warning parameters of each atmospheric pressure storage tank according to the number of atmospheric pressure storage tanks; S3. Calculate the loss rate of the liquid medium in the atmospheric pressure storage tank according to the collected operation data; S4. Determine whether there is a warning situation based on the collected real-time operation data and the loss rate of the liquid medium in the atmospheric pressure storage tank; S5. Compare the collected atmospheric storage tank bottom settlement monitoring data and storage tank expiration inspection information with standard parameters, and give different warning levels and issue warnings in combination with the loss rate judgment results of S4. Meanwhile, send the warning data to the client in real time; In step S3, the loss rate is calculated in units of 60 seconds according to the height of the liquid medium in the tank collected by the liquid level meter, and the calculated data is updated in real time; In step S4, the real-time loss rate is compared with the standard loss rate corresponding to the temperature in the tank. If the ratio is ≤1, the safety level is obtained and the data is updated in real time. If 1 < ratio, determine whether there is an operation task or maintenance task for the current atmospheric pressure storage tank. If yes, no warning is generated. If not, continue to determine the warning level based on the ratio. If 1 < ratio ≤ A, obtain the attention level. If A < ratio, obtain the warning level. According to the formula: ； Get the judgment value A; where q is the standard loss rate of each liquid medium per unit time, R is the radius of the tank body, is the ratio of pi, and h is the initial height of the liquid medium in the tank.

2. The method for monitoring and early warning of atmospheric pressure storage tanks for hazardous chemicals according to claim 1 is characterized in that: In step S1, the height, temperature and pressure of the liquid medium in the tank are collected using a liquid level meter, an in-tube thermometer and a pressure sensor.

3. The method for monitoring and early warning of atmospheric pressure storage tanks for hazardous chemicals according to claim 2 is characterized in that: In step S2, the fixed parameters of the atmospheric pressure storage tanks include the type, label, standard density, standard loss, tank space coordinate information, tank height, and tank diameter of the liquid medium introduced into each atmospheric pressure storage tank.

4. A monitoring and early warning system for atmospheric pressure storage tanks of hazardous chemicals, characterized in that: include: The acquisition module is used to collect real-time operation data of the liquid medium in the atmospheric pressure storage tank, tank bottom settlement monitoring data, and storage tank expiration inspection information; The parameter setting module is used to flexibly set the fixed parameters and warning parameters of each atmospheric pressure storage tank according to the number of atmospheric pressure storage tanks; The loss rate calculation module is used to calculate the loss rate in units of 60 seconds based on the height of the liquid medium in the tank collected by the liquid level meter, and update the calculated data in real time; The early warning module is used to determine whether there is an early warning situation by combining the collected real-time operation data and the loss rate of the liquid medium in the atmospheric pressure storage tank; compare the collected atmospheric pressure storage tank bottom settlement monitoring data and the storage tank expiration inspection information with the standard parameters, and give different early warning levels and issue early warnings in combination with the loss rate judgment results, and send the early warning data to the client in real time; The early warning module includes: The judgment submodule is used to compare the real-time loss rate with the standard loss rate corresponding to the temperature in the tank and judge the ratio thereof; The update submodule is used to issue an early warning or update according to the ratio; if the ratio is ≤1, the safety level is obtained and the data is updated in real time; if 1<ratio, it is determined whether there is an operation task or maintenance task for the current atmospheric pressure storage tank. If so, no early warning is generated. If not, the early warning level is determined according to the ratio. If 1<ratio≤A, the attention level is obtained. If A<ratio, the warning level is obtained. According to the formula: ； Get the judgment value A; where q is the standard loss rate of each liquid medium per unit time, R is the radius of the tank body, is the circumference, h is the initial height of the liquid medium in the tank; The early warning submodule is used to compare the collected atmospheric pressure storage tank bottom settlement monitoring data and tank expiration inspection information with the standard parameters, give different early warning levels and issue early warnings based on the loss rate judgment results, and send the early warning data to the client in real time.

5. The hazardous chemicals atmospheric pressure storage tank monitoring and early warning system according to claim 4 is characterized in that: The acquisition module includes: The height acquisition submodule is used to obtain the height of the liquid medium in the tank using a liquid level gauge; The temperature acquisition submodule is used to obtain the temperature inside the tank using an in-tube thermometer; The pressure acquisition submodule is used to obtain the pressure inside the tank using a pressure sensor; The settlement monitoring data acquisition submodule is used to obtain the settlement information of the tank body by using a laser range finder sensor, and to obtain the tilt angle and tilt direction of the tank body by using a tilt sensor; The due inspection information collection submodule is used to obtain the maintenance and modification records, annual inspection records, safety accessory inspection records, regular inspection information, and inspection plan information of the storage tank.

6. The hazardous chemicals atmospheric pressure storage tank monitoring and early warning system according to claim 4 is characterized in that: The parameter setting module includes: The tank fixed parameter setting submodule is used to set and store the type, label, standard density, standard loss, tank space coordinate information, tank height, and tank diameter of the liquid medium imported into each normal pressure tank; The warning parameter setting submodule is used to set the corresponding warning level according to the loss rate.

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