A real-time risk assessment method and system for pressure vessels

Abstract

A real-time risk assessment method and system for a pressure vessel, comprising: via a temperature mode and a pressure zone mode of the pressure vessel, using a separate simulation method, obtaining a simulation mode closest to correct operation of the pressure vessel, and performing comparison between collected operation indexes of the pressure vessel and simulation indexes obtained by the running simulation mode, and when deviation between the operation indexes and the simulation indexes exceeds a deviation interval, deriving a prompt message to perform prompt for possible danger of the pressure vessel, and reducing defect probability of the pressure vessel.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pressure vessel evaluation, in particular to a real-time risk evaluation method and system for pressure vessels. BACKGROUND

[0002] A pressure vessel is a closed container that can withstand pressure. The use of pressure vessels is extremely wide, and it plays an important role and function in many departments such as industry, civil, military, and many fields of scientific research. Among them, the most used is in the chemical industry and petrochemical industry, and the pressure vessels used in the petrochemical industry account for about 50% of the total number of pressure vessels. In the field of chemical industry and petrochemical industry, pressure vessels are mainly used for heat transfer, mass transfer, reaction, and other process, as well as storage and transportation of gas or liquefied gas under pressure; in other industrial and civil fields, there are also wide applications, such as air compressors. Various special compressors and auxiliary machines of refrigeration compressors (coolers, buffers, oil-water separators, gas storage tanks, evaporators, liquid coolant storage tanks, etc.) are all pressure vessels.

[0003] A large number of pressure vessels are like evaporators to vaporize the liquid material in them into gaseous material. The surface of the pressure vessel like an evaporator is a kind of simple operation device, but the wrong operation method can cause disastrous consequences like pressure vessel explosion. Overload operation and full vaporization high temperature operation of the pressure vessel often cause disastrous consequences like pressure vessel explosion. In addition, insufficient maintenance of the pressure vessel, insufficient level of the user of the pressure vessel, oxidation of the liquid delivery channel of the pressure vessel, and cracking of the explosion-proof shell of the pressure vessel often cause overload operation of the pressure vessel, which causes disastrous consequences like pressure vessel explosion.

[0004] The current pressure vessel evaluation equipment is generally composed of a pressure sensor, a thermocouple, a liquid level sensor, a pressure relief switch, and a main controller. Such current pressure vessel evaluation equipment has the following problems:

[0005] 1. If the liquid delivery channel of the pressure vessel is cracked or the thickness of the explosion-proof shell of the pressure vessel is reduced, the pressure will change abnormally, but such a small change will not cause the pressure relief switch to operate. If the monitoring is not real-time, there is a high risk of disaster.

[0006] 2. In general, the pressure vessel protection architecture often determines that when the pressure, temperature, or liquid level reaches a critical amount, the pressure relief switch will be opened. Such control method has a certain delay. In addition, if the pressure relief switch cannot operate in real time due to long-term use or oxidation of the liquid delivery channel, there is a high risk of disaster. SUMMARY

[0007] To solve the above problems, the application provides a pressure container real-time risk assessment system and a transmission method, which effectively avoids the defects that the monitoring of the monitorer of the pressure container is not real-time, and there is a high disaster probability, and if the pressure relief switch cannot operate in real time due to reasons such as long use and oxidation of the liquid sending channel, there is a high disaster probability in the regulation of the pressure container.

[0008] In order to overcome the defects in the prior art, the application provides a solution of a pressure container real-time risk assessment system and a transmission method, as follows:

[0009] A pressure container real-time risk assessment method, comprising the following steps:

[0010] S1: obtaining the type message of the explosion-proof shell of the pressure container;

[0011] S2: based on the type message of the explosion-proof shell of the pressure container, obtaining the temperature state mode of the pressure container according to the initial state and the surrounding state of the pressure container;

[0012] S3: according to the temperature state mode of the pressure container, using a separate solver to solve, that is, performing temperature analysis on the temperature state mode of the pressure container, thereby obtaining the real-time temperature point domain at each time point, and then associating the temperature value of each time point with the temperature point in the structure of the pressure container, obtaining the pressure zone mode of the pressure container;

[0013] S4: comparing the obtained temperature state mode and pressure zone mode of the pressure container with the temperature value and pressure index of the heating and cooling process of the pressure container under correct operation;

[0014] S5: changing the surrounding state of the pressure container, and performing S2 to S4 again, performing separate simulation on the temperature state mode and the pressure zone mode, taking the temperature state mode and the pressure zone mode closest to the real correct operation state of the pressure container as the simulation mode, and using the simulation mode to obtain the simulation index of the pressure container;

[0015] S6: collecting the operation index of the pressure container every period;

[0016] S7: setting a deviation interval, comparing the collected operation index of the pressure container with the simulation index obtained by using the simulation mode, and if the deviation of the operation index and the simulation index exceeds the deviation interval, a prompt message is derived.

[0017] Preferably, in S7, if the deviation of the operation index and the simulation index exceeds fifteen percent, a prompt message is derived.

[0018] Preferably, the S2, the explosion-proof shell of the pressure vessel type message contains a closed one end and the other end with the pressure vessel interior communication ring columnar pressure vessel explosion-proof shell horizontal transverse span, horizontal longitudinal span, vertical span, the diameter of the inner ring and the diameter of the outer ring; the heat transfer integral formula of the pressure vessel is solved to obtain the temperature state mode of the pressure vessel, and the heat transfer integral formula of the pressure vessel is expressed according to formula (1):

[0019]

[0020] The peripheral state contains:

[0021] The heat insulation peripheral state is expressed according to formula (2):

[0022]

[0023] The inner surface peripheral state is expressed according to formula (3-1) and formula (3-2):

[0024]

[0025]

[0026] The inner and outer surface exchange peripheral state is expressed according to formula (4):

[0027]

[0028] The emission heat transfer peripheral state is expressed according to formula (5):

[0029]

[0030] The initial state contains the initial temperature value x| s＝0 = xi;

[0031] Here, o is the average mass per cubic centimeter of the explosion-proof shell of the pressure vessel; p is the heat transfer factor of the explosion-proof shell of the pressure vessel; m is the horizontal lateral span of the explosion-proof shell of the pressure vessel; q is the average heat capacity per cubic centimeter of the explosion-proof shell of the pressure vessel; y is the internal capacity of the explosion-proof shell of the pressure vessel; m1 is the diameter of the inner ring of the explosion-proof shell of the pressure vessel; m2 is the diameter of the outer ring of the explosion-proof shell of the pressure vessel; z is the average heat per square centimeter of the cross section of the explosion-proof shell of the pressure vessel per second; e3 is the surface heat exchange factor of the inner surface and the outer surface of the pressure vessel; e1 is the surface heat exchange factor of the inner surface of the pressure vessel and the liquid and gaseous substances in the pressure vessel in a state of equilibrium; e2 is the surface heat exchange factor of the gaseous substance in a state of equilibrium of the liquid and gaseous substances in the pressure vessel; xk is the average temperature value of the outer surface of the pressure vessel; x is the average temperature value in the pressure vessel; s is a time point variable; xi is the initial average temperature value in the pressure vessel; x2 is the average temperature value in a state of equilibrium of the liquid and gaseous substances in the pressure vessel.

[0032] Preferably, in the S3, the temperature state mode of the pressure vessel is solved by using a separate solver, that is, a temperature state analysis is performed on the temperature state mode of the pressure vessel to obtain a real-time temperature point domain at each time point, and then the temperature point temperature value at each time point is associated to obtain a pressure zone mode of the pressure vessel, wherein the derivation formula of the pressure zone mode B1 is shown in formula (6):

[0033] B1 = u * {V1-V2} - u * {V3-V2} (6)

[0034] Here, u is the linear elasticity factor of the pressure vessel, V1 is the temperature point temperature value, V2 is the average value of the historical temperature point temperature value of the pressure vessel, and V2 is the initial temperature value of the temperature point.

[0035] Preferably, in the S7, a fitting line corresponding to each operation index of the pressure vessel is generated according to the operation index of the pressure vessel, the development trend of each fitting line is derived, and it is determined whether the development trend of each fitting line is problematic, and if so, a prompt message is derived.

[0036] A pressure vessel prompting system comprises:

[0037] An obtaining unit is configured to obtain a type message of an explosion-proof shell of a pressure vessel.

[0038] A temperature state mode generating unit is configured to obtain a temperature state mode of the pressure vessel according to an initial state and a surrounding state of the pressure vessel based on the type message of the explosion-proof shell of the pressure vessel.

[0039] a pressure zone pattern generation unit for generating a pressure zone pattern of the pressure vessel according to the temperature pattern of the pressure vessel by using a segregated solver, i.e., performing a temperature analysis on the temperature pattern of the pressure vessel to obtain a real-time temperature point domain at each time point, and then associating the temperature value of each time point with the temperature point domain in the structure of the pressure vessel to obtain the pressure zone pattern of the pressure vessel;

[0040] a comparison unit for comparing the temperature pattern and the pressure zone pattern of the pressure vessel obtained with the temperature and pressure indicators of the heating and cooling processes of the pressure vessel in correct operation;

[0041] a simulation pattern generation unit for changing the surrounding state of the pressure vessel, performing segregated simulation on the temperature pattern and the pressure zone pattern, and taking the temperature pattern and the pressure zone pattern closest to the real correct operation state of the pressure vessel as a simulation pattern, and using the simulation pattern to obtain simulation indicators of the pressure vessel;

[0042] a collection unit for collecting operation indicators of the pressure vessel;

[0043] a first prompt unit for setting a deviation interval, comparing the collected operation indicators of the pressure vessel with the simulation indicators obtained by using the simulation pattern, and deriving a prompt message if the deviation between the operation indicators and the simulation indicators exceeds the deviation interval.

[0044] Preferably, the first prompt unit is further configured to derive the prompt message if the deviation between the operation indicators and the simulation indicators exceeds 15%.

[0045] Preferably, the temperature pattern generation unit is further configured to obtain the temperature pattern of the pressure vessel by solving a heat transfer integral formula of the pressure vessel, and the heat transfer integral formula of the pressure vessel is expressed as formula (1):

[0046]

[0047] The surrounding state includes:

[0048] The heat insulation surrounding state is expressed as formula (2):

[0049]

[0050] The inner surface surrounding state is expressed as formula (3-1) and formula (3-2):

[0051]

[0052]

[0053] The inner and outer surface heat exchange peripheral state is expressed by formula (4):

[0054]

[0055] The heat emission peripheral state is expressed by formula (5):

[0056]

[0057] The initial state includes an initial temperature value x| s＝0 = xi;

[0058] Here, o is the average mass per cubic centimeter of the explosion-proof shell of the pressure vessel; p is the heat transfer factor of the explosion-proof shell of the pressure vessel; m is the horizontal lateral span of the explosion-proof shell of the pressure vessel; q is the average heat capacity per cubic centimeter of the explosion-proof shell of the pressure vessel; y is the internal capacity of the explosion-proof shell of the pressure vessel; m1 is the diameter of the inner ring of the explosion-proof shell of the pressure vessel; m2 is the diameter of the outer ring of the explosion-proof shell of the pressure vessel; z is the average heat per square centimeter of the cross section of the explosion-proof shell of the pressure vessel per second; e3 is the surface heat exchange factor of the inner and outer surfaces of the pressure vessel; e1 is the surface heat exchange factor of the inner surface of the pressure vessel and the liquid and vapor state substance in the pressure vessel in a state of equilibrium; e2 is the surface heat exchange factor of the vapor state substance in a state of equilibrium of the liquid and vapor state substance in the pressure vessel; xk is the average temperature value of the outer surface of the pressure vessel; x is the average temperature value in the pressure vessel; s is a time point variable; xi is the initial average temperature value in the pressure vessel; x2 is the average temperature value in a state of equilibrium of the liquid and vapor state substance in the pressure vessel.

[0059] Preferably, the pressure zone pattern generating unit is further configured to solve the temperature state pattern of the pressure vessel by using a separation solver, i.e., performing temperature state analysis on the temperature state pattern of the pressure vessel to obtain a real-time temperature point domain at each time point, and then associating the temperature point temperature value at each time point to the pressure vessel architecture to obtain the pressure zone pattern of the pressure vessel, wherein the derivation formula of the pressure zone pattern B1 is shown in formula (6):

[0060] B1 = u * {V1-V2} - u * {V3-V2} (6)

[0061] Here, u is the linear elasticity factor of the pressure vessel, V1 is the temperature point temperature value, V2 is the average value of the historical temperature point temperature value of the pressure vessel, and V2 is the initial temperature value of the temperature point.

[0062] Preferably, the prompt unit is further configured to generate a fitting line corresponding to each operation index according to the operation index of the pressure vessel, derive the development trend of each fitting line, and determine whether the development trend of each fitting line is problematic, and if so, derive a prompt message.

[0063] The beneficial effects of the present application are:

[0064] Through the temperature mode and pressure zone mode of the pressure vessel, the simulation method is used to obtain the simulation mode closest to the correct operation of the pressure vessel, and the collected operation indicators of the pressure vessel and the simulation indicators obtained by the running simulation mode are compared. When the deviation between the operation indicators and the simulation indicators exceeds the deviation interval, a prompt message is derived to prompt the possible danger of the pressure vessel, thereby reducing the defect probability of the pressure vessel.

[0065] The defect that the monitoring of the pressure vessel in the prior art is not real-time and has a high disaster probability, and if the pressure relief switch cannot operate in real time due to reasons such as long-term use and oxidation of the liquid delivery channel in the regulation of the pressure vessel, there is a high disaster probability. BRIEF DESCRIPTION OF DRAWINGS

[0066] Fig. 1 is a schematic diagram of the unit structure of the remote information monitoring device of the present application.

[0067] Fig. 2 is a flowchart of S1 to S7 of the present application. DETAILED DESCRIPTION

[0068] The present application will be further described below based on the drawings and examples.

[0069] As shown in Figs. 1-2 , a real-time risk assessment method for a pressure vessel includes the following steps:

[0070] S1: Obtain the type message of the explosion-proof shell of the pressure vessel;

[0071] S2: Based on the type message of the explosion-proof shell of the pressure vessel, obtain the temperature mode of the pressure vessel according to the initial state and the surrounding state of the pressure vessel;

[0072] S3: According to the temperature mode of the pressure vessel, use a separate solver to solve, i.e., perform temperature analysis on the temperature mode of the pressure vessel, thereby obtaining the real-time temperature domain at each time point, and then associate the temperature value of each time point with the pressure vessel architecture to obtain the pressure zone mode of the pressure vessel;

[0073] S4: Compare the obtained temperature mode and pressure zone mode of the pressure vessel with the temperature and pressure indicators of the heating and cooling process of the pressure vessel under correct operation;

[0074] S5: changing the peripheral state of the pressure vessel, performing the separate simulation of the temperature mode and the pressure zone mode again for several times, taking the temperature mode and the pressure zone mode closest to the real correct operation state of the pressure vessel as the simulation mode, using the simulation mode to obtain the simulation index of the pressure vessel;

[0075] S6: collecting the operation index of the pressure vessel every period;

[0076] S7: setting a deviation interval, comparing the collected operation index of the pressure vessel with the simulation index obtained by using the simulation mode, and if the deviation of the operation index and the simulation index exceeds the deviation interval, a prompt message is derived.

[0077] Thus, the present application uses the method of separate simulation of the temperature mode and the pressure zone mode of the pressure vessel to obtain the simulation mode closest to the correct operation of the pressure vessel, compares the collected operation index of the pressure vessel with the simulation index obtained by using the simulation mode, and if the deviation of the operation index and the simulation index exceeds the deviation interval, a prompt message is derived, which can prompt the possible danger of the pressure vessel and reduce the defect probability of the pressure vessel.

[0078] In the preferred but non-limiting embodiment of the present application, in S7, if the deviation of the operation index and the simulation index exceeds 15%, a prompt message is derived.

[0079] In the preferred but non-limiting embodiment of the present application, in S2, the type message of the explosion-proof shell of the pressure vessel includes the horizontal transverse span, the horizontal longitudinal span, the vertical span, the diameter of the inner ring and the diameter of the outer ring of the explosion-proof shell of the cylindrical pressure vessel with one end closed and the other end connected with the inside of the pressure vessel; the temperature mode of the pressure vessel is obtained by solving the heat transfer integral formula of the pressure vessel, and the heat transfer integral formula of the pressure vessel is expressed according to formula (1):

[0080] The peripheral state includes:

[0081] The heat insulation peripheral state is expressed according to formula (2):

[0082]

[0083] The inner surface peripheral state is expressed according to formula (3-1) and formula (3-2):

[0084]

[0085]

[0086] The inner and outer surface exchange peripheral state is expressed according to formula (4):

[0087]

[0088] The peripheral state of heat transmission is expressed by equation (5):

[0089]

[0090] The initial state includes an initial temperature value x| s＝0 = xi;

[0091] Here, o is the average mass per cubic centimeter of the explosion-proof shell of the pressure vessel; p is the heat transfer factor of the explosion-proof shell of the pressure vessel; m is the horizontal lateral span of the explosion-proof shell of the pressure vessel; q is the average heat capacity per cubic centimeter of the explosion-proof shell of the pressure vessel; y is the internal capacity of the explosion-proof shell of the pressure vessel; m1 is the diameter of the inner ring of the explosion-proof shell of the pressure vessel; m2 is the diameter of the outer ring of the explosion-proof shell of the pressure vessel; z is the average heat per square centimeter of the cross section of the explosion-proof shell of the pressure vessel per second; e3 is the surface heat exchange factor of the inner and outer surfaces of the pressure vessel; e1 is the surface heat exchange factor of the inner surface of the pressure vessel and the liquid and gaseous substances in the pressure vessel in a state of equilibrium; e2 is the surface heat exchange factor of the gaseous substance in a state of equilibrium of the liquid and gaseous substances in the pressure vessel; xk is the average temperature value of the outer surface of the pressure vessel; x is the average temperature value in the pressure vessel; s is a time point variable; xi is the initial average temperature value in the pressure vessel; x2 is the average temperature value in a state of equilibrium of the liquid and gaseous substances in the pressure vessel.

[0092] In a preferred but non-limiting embodiment of the present application, in S3, a separate solver is used to solve according to the temperature state mode of the pressure vessel, that is, a temperature state analysis is performed on the temperature state mode of the pressure vessel to obtain a real-time temperature point domain at each time point, and then the temperature point temperature value at each time point is associated with the pressure vessel architecture to obtain a pressure zone mode of the pressure vessel. The derivation formula of the pressure zone mode B1 is shown in equation (6):

[0093] B1 = u * {V1-V2} - u * {V3-V2} (6)

[0094] Here, u is the linear elasticity factor of the pressure vessel, V1 is the temperature point temperature value, V2 is the average value of the historical temperature point temperature value of the pressure vessel, and V2 is the initial temperature value of the temperature point.

[0095] In the preferred but non-limiting embodiment of the present application, the operation indicators of the pressure vessel in S7 are used to generate a fitting line corresponding to each operation indicator, derive the development trend of each fitting line, and determine whether the development trend of each fitting line is problematic. If it is problematic, a prompt message is derived. In this way, the present application introduces a monitoring function of the development trend of the operation indicators of the pressure vessel. If the operation indicators of the pressure vessel fluctuate by more than the critical amount of the preset deviation interval in a short period of time, it means that the pressure vessel has corresponding problems, and a prompt message is derived to prompt the user to be careful.

[0096] A pressure vessel prompting system, comprising:

[0097] An acquisition unit configured to acquire a type message of a containment shell of a pressure vessel;

[0098] A warm state mode generation unit configured to acquire a warm state mode of the pressure vessel based on the type message of the containment shell of the pressure vessel and according to an initial state and a surrounding state of the pressure vessel;

[0099] A pressure zone mode generation unit configured to solve, by using a segregated solver, a warm state analysis on the warm state mode of the pressure vessel to acquire a real-time warm point domain at each time point, and then associate the warm point value at each time point to the architecture of the pressure vessel to acquire a pressure zone mode of the pressure vessel;

[0100] A comparison unit configured to compare the acquired warm state mode and pressure zone mode of the pressure vessel with the temperature and pressure indicators of the heating and cooling processes of the pressure vessel under correct operation;

[0101] A simulation mode generation unit configured to change the surrounding state of the pressure vessel, perform segregated simulation on the warm state mode and the pressure zone mode, and take the warm state mode and the pressure zone mode closest to the real correct operation state of the pressure vessel as a simulation mode, and use the simulation mode to acquire simulation indicators of the pressure vessel;

[0102] A collection unit configured to collect operation indicators of the pressure vessel;

[0103] A first prompting unit configured to set a deviation interval, compare the collected operation indicators of the pressure vessel with the simulation indicators acquired by using the simulation mode, and derive a prompt message if the deviation between the operation indicators and the simulation indicators is higher than the deviation interval.

[0104] In the preferred but non-limiting embodiment of the present application, the first prompting unit is further configured to derive a prompt message if the deviation between the operation indicators and the simulation indicators is higher than 15%.

[0105] In the preferred but non-limiting embodiment of the present application, the temperature mode generating unit is further configured to generate the type message of the explosion-proof shell of the pressure vessel, which includes the horizontal transverse span, the horizontal longitudinal span, the vertical span, the diameter of the inner ring, and the diameter of the outer ring of the toroidal pressure vessel with one end closed and the other end communicating with the interior of the pressure vessel; and solve the heat transfer integral formula of the pressure vessel to obtain the temperature mode of the pressure vessel, wherein the heat transfer integral formula of the pressure vessel is expressed according to formula (1):

[0106]

[0107] The peripheral state includes:

[0108] The heat insulation peripheral state is expressed according to formula (2):

[0109]

[0110] The inner surface peripheral state is expressed according to formula (3-1) and formula (3-2):

[0111]

[0112]

[0113] The inner and outer surface exchange peripheral state is expressed according to formula (4):

[0114]

[0115] The emission heat transfer peripheral state is expressed according to formula (5):

[0116]

[0117] The initial state includes an initial temperature value x| s＝0 = xi;

[0118] Here, o is the average mass per cubic centimeter of the explosion-proof shell of the pressure vessel; p is the heat transfer factor of the explosion-proof shell of the pressure vessel; m is the horizontal transverse span of the explosion-proof shell of the pressure vessel; q is the average heat capacity per cubic centimeter of the explosion-proof shell of the pressure vessel; y is the internal volume of the explosion-proof shell of the pressure vessel; m1 is the diameter of the inner ring of the explosion-proof shell of the pressure vessel; m2 is the diameter of the outer ring of the explosion-proof shell of the pressure vessel; z is the average heat per square centimeter passing through the cross-section of the explosion-proof shell of the pressure vessel in one second; e3 is the surface heat transfer factor of the inner and outer surfaces of the pressure vessel; e1 is the surface heat transfer factor of the inner surface of the pressure vessel and the surface heat transfer factor of the liquid and gaseous substances in the pressure vessel under equilibrium conditions; e2 is the surface heat transfer factor of the gaseous substances in the pressure vessel under equilibrium conditions; xk is the average temperature of the outer surface of the pressure vessel; x is the average temperature inside the pressure vessel; s is a time point variable; xi is the initial average temperature inside the pressure vessel; x2 is the average temperature of the liquid and gaseous substances in the pressure vessel under equilibrium conditions.

[0119] In a preferred but non-limiting embodiment of the present invention, the pressure zone model generation unit is further used to solve the pressure vessel's temperature state model using a split solver. That is, it first performs temperature state analysis on the pressure vessel's temperature state model to obtain the real-time temperature domain at each time point, and then associates the temperature value at each time point with the pressure vessel architecture to obtain the pressure zone model of the pressure vessel. The derivation formula of the pressure zone model B1 is as shown in formula (6):

[0120] B1=u*{V1-V2}-u*{V3-V2} (6)

[0121] Here, u is the linear elasticity factor of the pressure vessel, V1 is the temperature at the temperature point, V2 is the average historical temperature at the temperature point of the pressure vessel, and V3 is the initial temperature at the temperature point.

[0122] In a preferred but non-limiting embodiment of the present invention, the first prompting unit is further configured to generate a fitting line corresponding to each operating indicator based on the operating indicators of the pressure vessel, deduce the development trend of each fitting line, and determine whether the development trend of each fitting line has a problem. If a problem is found, a prompt message is generated. Thus, the present invention introduces the monitoring performance of the development trend of the pressure vessel's operating indicators. If the operating indicators of the pressure vessel fluctuate above a preset critical amount within a deviation range in a short period, it indicates that the pressure vessel has a corresponding problem, and a prompt message is generated to alert the user to be cautious.

[0123] The present application has been described above by way of example. Those skilled in the art should understand that the present disclosure is not limited to the embodiments described above, and various changes, modifications and substitutions can be made without departing from the scope of the present application.

Claims

1. A method for real-time risk assessment of a pressure vessel, characterized in that, The method comprises the following steps: S1: obtaining a type message of the explosion-proof shell of the pressure vessel; S2: based on the type message of the explosion-proof shell of the pressure vessel, obtaining a temperature state mode of the pressure vessel according to a starting state and a surrounding state of the pressure vessel; S3: according to the temperature state mode of the pressure vessel, solving by using a separate solver, i.e. performing temperature state analysis on the temperature state mode of the pressure vessel to obtain a real-time temperature point domain at each time point, and then associating the temperature value of each time point with the temperature point to the architecture of the pressure vessel to obtain a pressure zone mode of the pressure vessel; S4: comparing the obtained temperature state mode and pressure zone mode of the pressure vessel with the temperature value and pressure index of the heating and cooling process of the pressure vessel under correct operation; S5: changing the surrounding state of the pressure vessel, and performing S2 to S4 again for multiple times to perform separate simulation on the temperature state mode and the pressure zone mode, and taking the temperature state mode and the pressure zone mode closest to the real correct operation state of the pressure vessel as a simulation mode to obtain a simulation index of the pressure vessel by using the simulation mode; S6: collecting the operation index of the pressure vessel every period; S7: setting a deviation interval, comparing the collected operation index of the pressure vessel with the simulation index obtained by using the simulation mode, and if the deviation between the operation index and the simulation index exceeds the deviation interval, a prompt message is derived.

2. The method of claim 1, wherein, In the S7, if the deviation between the operation index and the simulation index exceeds 15%, a prompt message is derived.

3. The method of claim 1, wherein, In the S2, the type message of the explosion-proof shell of the pressure vessel comprises a horizontal transverse span, a horizontal longitudinal span, a vertical span, an inner ring diameter and an outer ring diameter of the explosion-proof shell of the ring column-shaped pressure vessel with one end closed and the other end connected with the inside of the pressure vessel; the temperature state mode of the pressure vessel is obtained by solving a heat transfer integral formula of the pressure vessel, and the heat transfer integral formula of the pressure vessel is expressed according to formula (1): （1） The surrounding state comprises: A heat insulation surrounding state expressed according to formula (2): （2） An inner surface surrounding state expressed according to formula (3-1) and formula (3-2): （3-1） （3-2） An inner and outer surface exchange surrounding state expressed according to formula (4): （4） A radiation heat transfer surrounding state expressed according to formula (5): （5） The initial state contains the initial temperature value is = xi; Herein, o is the average mass per cubic centimeter of the explosion-proof shell of the pressure vessel; p is the heat transfer factor of the explosion-proof shell of the pressure vessel; m is the horizontal lateral span of the explosion-proof shell of the pressure vessel; q is the average heat capacity per cubic centimeter of the explosion-proof shell of the pressure vessel; y is the internal capacity of the explosion-proof shell of the pressure vessel; m1 is the diameter of the inner ring of the explosion-proof shell of the pressure vessel; m2 is the diameter of the outer ring of the explosion-proof shell of the pressure vessel; z is the average heat per square centimeter of the cross section of the explosion-proof shell of the pressure vessel per second; e3 is the surface heat exchange factor of the inner surface and the outer surface of the pressure vessel; e1 is the surface heat exchange factor of the inner surface of the pressure vessel and the liquid and gaseous substances in the pressure vessel in a state of equilibrium; e2 is the surface heat exchange factor of the gaseous substance in a state of equilibrium of the liquid and gaseous substances in the pressure vessel; xk is the average temperature value of the outer surface of the pressure vessel; x is the average temperature value in the pressure vessel; s is a time point variable; xi is the initial average temperature value in the pressure vessel; x2 is the average temperature value in a state of equilibrium of the liquid and gaseous substances in the pressure vessel.

4. The method of claim 1, wherein, In the S3, according to the temperature state mode of the pressure vessel, a separate solver is used for solving, that is, a temperature state analysis is first performed on the temperature state mode of the pressure vessel to obtain a real-time temperature point domain at each time point, and then the temperature point temperature value at each time point is associated into the pressure vessel architecture to obtain a pressure zone mode of the pressure vessel. The derivation formula of the pressure zone mode B1 is shown in formula (6): （6） Herein, u is the linear elasticity factor of the pressure vessel, V1 is the temperature point temperature value, V2 is the average value of the historical temperature point temperature value of the pressure vessel, and V2 is the initial temperature value of the temperature point.

5. The method of claim 1, wherein, In the S7, according to the operation index of the pressure vessel, a fitting line corresponding to each operation index is generated, the development trend of each fitting line is derived, and it is determined whether the development trend of each fitting line is problematic. If it is problematic, a prompt message is derived.

6. A pressure vessel prompting system characterized by, It comprises: An obtaining unit is configured to obtain a state message of an explosion-proof shell of a pressure vessel. A temperature state mode generating unit is configured to obtain a temperature state mode of the pressure vessel based on the state message of the explosion-proof shell of the pressure vessel and according to an initial state and a surrounding state of the pressure vessel. A pressure zone mode generating unit is configured to derive a pressure zone mode of the pressure vessel by using a separate solver according to the temperature state mode of the pressure vessel, that is, performing a temperature state analysis on the temperature state mode of the pressure vessel to obtain a real-time temperature point domain at each time point, and then associating the temperature point temperature value at each time point into the pressure vessel architecture. A comparison unit is configured to compare the temperature state mode and the pressure zone mode of the pressure vessel obtained with temperature and pressure indexes of a heating and cooling process of the pressure vessel under correct operation. An analog mode generating unit is configured to change the surrounding state of the pressure vessel, perform separate simulation on the temperature state mode and the pressure zone mode, and take the temperature state mode and the pressure zone mode closest to a real correct operation state of the pressure vessel as an analog mode. A collecting unit is configured to collect operation indexes of the pressure vessel. The prompt unit one is configured to set a deviation interval, compare the collected operation index of the pressure vessel with the simulation index obtained by using the simulation mode, and derive a prompt message if the deviation between the operation index and the simulation index exceeds the deviation interval.

7. The pressure vessel prompting system of claim 6, wherein, The prompt unit one is further configured to derive a prompt message if the deviation between the operation index and the simulation index exceeds 15%.

8. The pressure vessel prompting system of claim 6, wherein, The temperature state mode generating unit is further configured to derive the shape message of the pressure vessel shell, which includes the horizontal transverse span, the horizontal longitudinal span, the vertical span, the diameter of the inner ring, and the diameter of the outer ring of the toroidal pressure vessel shell with one end closed and the other end connected to the inside of the pressure vessel; derive the temperature state mode of the pressure vessel by solving the heat transfer integral formula of the pressure vessel, which is expressed by formula (1): （1） The peripheral state includes: The heat insulation peripheral state is expressed by formula (2): （2） The inner surface peripheral state is expressed by formula (3-1) and formula (3-2): （3-1） （3-2） The inner and outer surface heat exchange peripheral state is expressed by formula (4): （4） The emission heat transfer peripheral state is expressed by formula (5): （5） The start state contains a start temperature value of = xi; where o is the average mass per cubic centimeter of the pressure vessel shell; p is the heat transfer factor of the pressure vessel shell; m is the horizontal transverse span of the pressure vessel shell; q is the average heat capacity per cubic centimeter of the pressure vessel shell; y is the internal capacity of the pressure vessel shell; m1 is the diameter of the inner ring of the pressure vessel shell; m2 is the diameter of the outer ring of the pressure vessel shell; z is the average heat per square centimeter of the cross section of the pressure vessel shell per second; e3 is the surface heat exchange factor of the inner and outer surfaces of the pressure vessel; e1 is the surface heat exchange factor of the inner surface of the pressure vessel and the liquid and vapor state substances in the pressure vessel in the state of equilibrium; e2 is the surface heat exchange factor of the vapor state substance in the state of equilibrium of the liquid and vapor state substances in the pressure vessel; xk is the average temperature of the outer surface of the pressure vessel; x is the average temperature in the pressure vessel; s is the time point variable; xi is the initial average temperature in the pressure vessel; x2 is the average temperature in the state of equilibrium of the liquid and vapor state substances in the pressure vessel.

9. The pressure vessel prompting system of claim 6, wherein, The pressure zone mode generating unit is further configured to derive the temperature state mode of the pressure vessel by using a separation solver, i.e., initially performing temperature analysis on the temperature state mode of the pressure vessel to obtain the real-time temperature point domain at each time point, and then associating the temperature point temperature value at each time point to the pressure vessel architecture to obtain the pressure zone mode of the pressure vessel, where the derivation formula of the pressure zone mode B1 is shown in formula (6): （6） where u is the linear elasticity factor of the pressure vessel, V1 is the temperature point temperature value, V2 is the average value of the historical temperature point temperature value of the pressure vessel, and V2 is the initial temperature value of the temperature point.

10. The pressure vessel prompting system of claim 6, wherein, The prompt unit one is further configured to generate a fitting line corresponding to each operation index according to the operation index of the pressure vessel, derive the development trend of each fitting line, and determine whether the development trend of each fitting line is problematic, and derive a prompt message if it is problematic.

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