Method and device for obtaining minimum pressure boosting temperature of CrMo steel hydrogenation reactor

Abstract

The present invention provides a method and device for obtaining the lowest pressure rising temperature of a CrMo steel hydrogenation reactor. The obtaining method includes: obtaining the material test data of the CrMo steel hydrogenation reactor, and generating a first pressure rising temperature threshold of the CrMo steel hydrogenation reactor under the influence of temper embrittlement according to the material test data; obtaining the design parameters of the CrMo steel hydrogenation reactor, and generating the hydrogen concentration in the reactor wall under the steady-state condition of the CrMo steel hydrogenation reactor according to the design parameters; obtaining the material parameters of the CrMo steel hydrogenation reactor, and generating a second pressure rising temperature threshold of the CrMo steel hydrogenation reactor under the influence of hydrogen-induced embrittlement according to the hydrogen concentration in the reactor wall and the material parameters; generating the lowest pressure rising temperature of the CrMo steel hydrogenation reactor according to the first pressure rising temperature threshold and the second pressure rising temperature threshold.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogenation reactors, and in particular to a method and device for obtaining the minimum pressure-rise temperature of a CrMo steel hydrogenation reactor. Background Art

[0002] Hydrogenation reactors are in a high-temperature and high-pressure hydrogen environment for a long time, and the operating environment is extremely harsh. When the equipment operates at a temperature of 343°C - 454°C for a long time, impurities such as phosphorus, tin, antimony, and arsenic in the steel will diffuse to the grain boundaries, causing grain boundary segregation, resulting in an increase in the ductile-brittle transition temperature and a decrease in the fracture toughness of the material, which is the temper embrittlement phenomenon. And in a high-pressure and high-temperature hydrogen environment for a long time, hydrogen atoms will dissolve into the metal interior and continuously diffuse inward, which will lead to various hydrogen damages such as hydrogen-induced cracks. Especially, the hydrogen that enters the material diffuses under the induction of stress. When the hydrogen concentration reaches the critical value, it will cause the nucleation and growth of hydrogen-induced cracks. After a period of time, it will eventually lead to fracture under low stress. Since the working environment of the equipment determines that temper embrittlement and hydrogen embrittlement of the material are inevitable, especially when the container temperature is relatively low, it will cause a significant decrease in the toughness of the material. If the minimum pressure-rise temperature at the start of the hydrogenation reactor is too low, it will lead to a decrease in the toughness of the material, and the container is prone to brittle fracture risk during pressure rise, triggering safety accidents. In order to avoid such accidents, it is necessary to strictly control the minimum pressure-rise temperature at the start of the hydrogenation reactor.

[0003] In the prior art, when generating the minimum pressure-rise temperature of a hydrogenation reactor, it is necessary to comprehensively consider the influence of material temper embrittlement and hydrogen-induced embrittlement. And the method for obtaining the minimum pressure-rise temperature under the influence of hydrogen-induced embrittlement is an estimated method. In this way, the comprehensively generated temperature value is inaccurate and on the low side, which will affect the safety during the start of the hydrogenation reactor. Summary of the Invention

[0004] The problem to be solved by the present invention is: how to more accurately obtain the minimum pressure-rise temperature of a hydrogenation reactor.

[0005] To solve the above problems, a method for obtaining the minimum pressure-rise temperature of a CrMo steel hydrogenation reactor according to the present invention includes:

[0006] Obtain the material test data of the CrMo steel hydrogenation reactor, and generate a first pressure-rise temperature threshold of the CrMo steel hydrogenation reactor under the influence of temper embrittlement according to the material test data, wherein the material test data is obtained through a temper embrittlement tendency experiment of the material of the CrMo steel hydrogenation reactor;

[0007] Obtain the design parameters of the CrMo steel hydrogenation reactor, and generate the hydrogen concentration in the reactor wall under the steady-state working condition of the CrMo steel hydrogenation reactor according to the design parameters;

[0008] Obtain the material parameters of the CrMo steel hydrogenation reactor, and generate a second pressure increase temperature threshold of the CrMo steel hydrogenation reactor under the influence of hydrogen-induced embrittlement according to the wall hydrogen concentration and the material parameters;

[0009] Generate the lowest pressure increase temperature of the CrMo steel hydrogenation reactor according to the first pressure increase temperature threshold and the second pressure increase temperature threshold.

[0010] Preferably, the material test data includes a first transition temperature and a second transition temperature. Among them, the first transition temperature is the transition temperature corresponding to the Charpy impact energy of 54 joules after the minimum simulated post-weld heat treatment in the temper embrittlement tendency experiment, and the second transition temperature is the increment of the transition temperature corresponding to the Charpy impact energy of 54 joules after the minimum simulated post-weld heat treatment and step cooling in the temper embrittlement tendency experiment and the first transition temperature;

[0011] Generating a first pressure increase temperature threshold of the CrMo steel hydrogenation reactor under the influence of temper embrittlement according to the material test data includes: generating the first pressure increase temperature threshold according to the first transition temperature and the second transition temperature.

[0012] Preferably, the first pressure increase temperature threshold is not greater than 10°C.

[0013] Preferably, the design parameters include: the maximum operating temperature of the CrMo steel reactor, the design hydrogen partial pressure of the CrMo steel hydrogenation reactor, the base metal wall thickness of the CrMo steel hydrogenation reactor, and the surfacing thickness of the welding consumables of the CrMo steel hydrogenation reactor;

[0014] The obtaining of the design parameters of the CrMo steel hydrogenation reactor and the generation of the wall hydrogen concentration of the CrMo steel hydrogenation reactor under steady-state conditions according to the design parameters of the CrMo steel hydrogenation reactor includes:

[0015] Obtain the maximum operating temperature, and generate the base metal solubility of the CrMo steel hydrogenation reactor, the base metal diffusion coefficient of the CrMo steel hydrogenation reactor, the welding consumable solubility of the CrMo steel hydrogenation reactor, and the welding consumable diffusion coefficient of the CrMo steel hydrogenation reactor according to the maximum operating temperature;

[0016] Obtain the design hydrogen partial pressure, and generate the hydrogen concentration on the surface of the surfacing layer of the CrMo steel hydrogenation reactor according to the design hydrogen partial pressure, the welding consumable solubility, and the maximum operating temperature;

[0017] Obtain the wall thickness of the base material and the surfacing thickness of the welding material, and generate the wall hydrogen concentration according to the hydrogen concentration on the surface of the surfacing layer, the wall thickness of the base material, the solubility of the base material, the diffusion coefficient of the base material, the diffusion coefficient of the welding material, the solubility of the welding material, and the surfacing thickness of the welding material.

[0018] Preferably, the generating the wall hydrogen concentration according to the hydrogen concentration on the surface of the surfacing layer, the wall thickness of the base material, the solubility of the base material, the diffusion coefficient of the base material, the diffusion coefficient of the welding material, the solubility of the welding material, and the surfacing thickness of the welding material includes:

[0019] Generate the wall hydrogen concentration through a second formula according to the hydrogen concentration on the surface of the surfacing layer, the wall thickness of the base material, the solubility of the base material, the diffusion coefficient of the base material, the diffusion coefficient of the welding material, the solubility of the welding material, and the surfacing thickness of the welding material. The second formula is:

[0020]

[0021] where C b is the wall hydrogen concentration, t 母材 is the wall thickness of the base material, t 堆焊 is the surfacing thickness of the welding material, C S is the hydrogen concentration on the surface of the surfacing layer, S 母材 is the solubility of the base material, D 母材 is the diffusion coefficient of the base material, S 焊材 is the solubility of the welding material, D 焊材 is the diffusion coefficient of the welding material.

[0022] Preferably, the material parameters include: the yield strength of CrMo steel and the critical hydrogen resistance level of CrMo steel;

[0023] The generating the second pressure increase temperature threshold of the CrMo steel hydrogenation reactor under the influence of hydrogen embrittlement according to the wall hydrogen concentration and the material parameters includes:

[0024] Generate the second pressure increase temperature threshold of the CrMo steel hydrogenation reactor according to the wall hydrogen concentration, the yield strength of CrMo steel, and the critical hydrogen resistance level of CrMo steel.

[0025] Preferably, generating the second pressure increase temperature threshold of the CrMo steel hydrogenation reactor according to the wall hydrogen concentration, the yield strength of CrMo steel, and the critical hydrogen resistance level of CrMo steel includes:

[0026] Generate the second pressure increase temperature threshold of the CrMo steel hydrogenation reactor through a third formula according to the wall hydrogen concentration, the yield strength of CrMo steel, and the critical hydrogen resistance level of CrMo steel. The third formula is:

[0027]

[0028] Among them, NPT 氢 is the second pressure increase temperature threshold of the CrMo steel hydrogenation reactor, C tσ-crit is the key hydrogen resistance level of CrMo steel, σ YS is the yield strength of CrMo steel.

[0029] Preferably, generating the minimum pressure increase temperature of the CrMo steel hydrogenation reactor according to the first pressure increase temperature threshold and the second pressure increase temperature threshold includes:

[0030] Comparing the magnitudes of the first pressure increase temperature threshold and the second pressure increase temperature threshold,

[0031] Obtaining a temporary pressure increase temperature threshold according to the comparison result, where the temporary pressure increase temperature threshold is the larger threshold of the first pressure increase temperature threshold and the second pressure increase temperature threshold,

[0032] Obtaining a safety margin, and generating the minimum pressure increase temperature of the CrMo steel hydrogenation reactor according to the safety margin and the temporary pressure increase temperature threshold.

[0033] The present invention first generates the first pressure increase temperature threshold of the CrMo steel hydrogenation reactor under the influence of temper embrittlement through the material test parameters of the CrMo steel hydrogenation reactor, then generates the hydrogen concentration in the reactor wall of the CrMo steel hydrogenation reactor under steady-state conditions through the design parameters of the CrMo steel hydrogenation reactor, and then generates the second pressure increase temperature threshold required for the CrMo steel hydrogenation reactor to prevent the influence of hydrogen embrittlement according to the hydrogen concentration in the reactor wall. Finally, the minimum pressure increase temperature of the CrMo steel hydrogenation reactor is obtained through the first pressure increase temperature threshold and the second pressure increase temperature threshold. Compared with the prior art, on the one hand, the calculation of the present invention is more convenient and the result is more accurate, which can effectively avoid safety accidents caused by brittle fracture of the CrMo steel hydrogenation reactor during startup. On the other hand, the finally generated minimum pressure increase temperature of the present invention is lower than the value obtained by the graphical method, which can play a role in energy conservation and consumption reduction, has good economy, and is more suitable for engineering applications.

[0034] To solve the above problems, the present invention also provides a device for obtaining the minimum pressure increase temperature of a CrMo steel hydrogenation reactor, including:

[0035] An acquisition unit for acquiring the material test data of the CrMo steel hydrogenation reactor, the design parameters of the CrMo steel hydrogenation reactor, and the material parameters of the CrMo steel hydrogenation reactor;

[0036] A generation unit for generating the first pressure increase temperature threshold of the CrMo steel hydrogenation reactor under the influence of temper embrittlement according to the material test data;

[0037] The generating unit is further configured to generate the hydrogen concentration in the reactor wall under the steady-state condition of the CrMo steel hydrogenation reactor according to the design parameters;

[0038] The generating unit is further configured to generate a second pressure increase temperature threshold of the CrMo steel hydrogenation reactor under the influence of hydrogen embrittlement according to the hydrogen concentration in the reactor wall and the material parameters;

[0039] The generating unit is further configured to generate the minimum pressure increase temperature of the CrMo steel hydrogenation reactor according to the first pressure increase temperature threshold and the second pressure increase temperature threshold.

[0040] The device for obtaining the minimum pressure increase temperature of the CrMo steel hydrogenation reactor according to the present invention has the same advantages as the method for obtaining the minimum pressure increase temperature of the CrMo steel hydrogenation reactor over the prior art, and will not be elaborated herein.

[0041] To solve the above problems, the present invention further provides a computer device, including a memory and a processor:

[0042] The memory is used to store a computer program;

[0043] The processor is configured to implement the method for obtaining the minimum pressure increase temperature of the CrMo steel hydrogenation reactor as described above when executing the computer program.

[0044] The computer device according to the present invention has the same advantages as the method for obtaining the minimum pressure increase temperature of the CrMo steel hydrogenation reactor over the prior art, and will not be elaborated herein. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 It is an application environment diagram of the method for generating the minimum pressure increase temperature of the CrMo steel hydrogenation reactor in an embodiment of the present invention;

[0046] Figure 2 It is a flowchart of the method for generating the minimum pressure increase temperature of the CrMo steel hydrogenation reactor in an embodiment of the present invention;

[0047] Figure 3 It is a flowchart of the method for generating the hydrogen concentration in the reactor wall under the steady-state condition of the CrMo steel hydrogenation reactor in an embodiment of the present invention;

[0048] Figure 4 It is a structural diagram of the device for obtaining the minimum pressure increase temperature of the CrMo steel hydrogenation reactor in an embodiment of the present invention;

[0049] Figure 5 It is an internal structural diagram of the computer device in an embodiment of the present invention;

[0050] Figure 6It is a graph showing the relationship between hydrogen partial pressure and hydrogen concentration in a CrMo steel hydrogenation reactor;

[0051] Figure 7 It is a graph showing the relationship between hydrogen concentration and temperature in a CrMo steel hydrogenation reactor. Specific implementation manners

[0052] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments may be combined with each other.

[0053] In this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method or device including a series of elements not only includes those elements, but also includes other elements not expressly listed.

[0054] In the description of the embodiments of the present application, the description of the term "some embodiments" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0055] Figure 1 It is an application environment diagram of the method for obtaining the minimum pressure boosting temperature of a CrMo steel hydrogenation reactor in an embodiment of the present application. Refer to Figure 1 , the method for obtaining the minimum pressure boosting temperature of a CrMo steel hydrogenation reactor is applied to a system for obtaining the minimum pressure boosting temperature of a CrMo steel hydrogenation reactor. The system for obtaining the minimum pressure boosting temperature of a CrMo steel hydrogenation reactor includes a terminal 110 and a server 120. The terminal 110 and the server 120 are connected through a network. The terminal 110 may specifically be a desktop terminal or a mobile terminal, and the mobile terminal may specifically be at least one of a mobile phone, a tablet computer, a laptop computer, etc. The server 120 may be implemented by an independent server or a server cluster composed of multiple servers.

[0056] As Figure 2 shown, in one embodiment, a method for obtaining the minimum pressure boosting temperature of a CrMo steel hydrogenation reactor is provided. In this embodiment, the method is mainly illustrated by applying it to the terminal 110 (or the server 120) in the above Figure 1 . Refer to Figure 2 , the method for obtaining the minimum pressure boosting temperature of a CrMo steel hydrogenation reactor specifically includes the following steps:

[0057] Step S100: Obtain the material test data of the CrMo steel hydrogenation reactor, and generate the first pressure increase temperature threshold of the CrMo steel hydrogenation reactor under the influence of temper embrittlement according to the material test data, where the material test data is obtained through the temper embrittlement tendency experiment of the material of the CrMo steel hydrogenation reactor;

[0058] Step S200: Obtain the design parameters of the CrMo steel hydrogenation reactor, and generate the hydrogen concentration in the reactor wall under the steady-state condition of the CrMo steel hydrogenation reactor according to the design parameters;

[0059] Step S300: Obtain the material parameters of the CrMo steel hydrogenation reactor, and generate the second pressure increase temperature threshold of the CrMo steel hydrogenation reactor under the influence of hydrogen-induced embrittlement according to the hydrogen concentration in the reactor wall and the material parameters;

[0060] Step S400: Generate the minimum pressure increase temperature of the CrMo steel hydrogenation reactor according to the first pressure increase temperature threshold and the second pressure increase temperature threshold.

[0061] In some specific embodiments, calculating the minimum pressure increase temperature of the hydrogenation reactor needs to comprehensively consider the influence of material temper embrittlement and hydrogen-induced embrittlement on the minimum pressure increase temperature of the CrMo steel hydrogenation reactor. When calculating the influence of material temper embrittlement on the minimum pressure increase temperature of the CrMo steel hydrogenation reactor, first obtain the material test data of the CrMo steel hydrogenation reactor through the temper embrittlement tendency experiment of the material of the CrMo steel hydrogenation reactor, and then calculate the first pressure increase temperature threshold of the CrMo steel hydrogenation reactor under the influence of temper embrittlement through the first formula. When calculating the influence of hydrogen-induced embrittlement on the minimum pressure increase temperature of the CrMo steel hydrogenation reactor, first calculate the hydrogen concentration in the reactor wall under the steady-state condition of the CrMo steel hydrogenation reactor according to the design parameters of the CrMo steel hydrogenation reactor through multiple formulas, and then calculate the second pressure increase temperature threshold of the CrMo steel hydrogenation reactor under the influence of hydrogen-induced embrittlement according to the hydrogen concentration in the reactor wall and the material parameters through the third formula. Finally, calculate the minimum pressure increase temperature of the CrMo steel hydrogenation reactor through the fourth formula according to the first pressure increase temperature threshold and the second pressure increase temperature threshold.

[0062] The method for obtaining the minimum pressure increase temperature of the CrMo steel hydrogenation reactor provided in this embodiment, compared with the prior art, on the one hand, the calculation in this embodiment is more convenient and the result is more accurate, which can effectively avoid safety accidents caused by brittle fracture of the CrMo steel hydrogenation reactor during startup. On the other hand, the finally generated minimum pressure increase temperature in this embodiment is lower than the value obtained by the graph search method, which can play a role in energy conservation and consumption reduction, has good economy, and is more suitable for engineering applications.

[0063] In some preferred embodiments, in step S100, the material test data includes a first transition temperature and a second transition temperature. The first transition temperature is the transition temperature corresponding to a Charpy impact energy of 54 joules after the minimum simulated post-weld heat treatment in the temper embrittlement tendency experiment. The second transition temperature is the increment of the transition temperature corresponding to a Charpy impact energy of 54 joules after the minimum simulated post-weld heat treatment and step cooling in the temper embrittlement tendency experiment relative to the first transition temperature. Generating a first pressure-rise temperature threshold for the CrMo steel hydrogenation reactor under the influence of temper embrittlement based on the material test data includes: generating the first pressure-rise temperature threshold based on the first transition temperature and the second transition temperature.

[0064] In a specific embodiment, when generating the first pressure-rise temperature threshold for the CrMo steel hydrogenation reactor under the influence of temper embrittlement, first, the transition temperature corresponding to a Charpy impact energy of 54 joules after the minimum simulated post-weld heat treatment (the first transition temperature) and the increment of the transition temperature corresponding to a Charpy impact energy of 54 joules after the minimum simulated post-weld heat treatment and step cooling (the second transition temperature) are obtained through the temper embrittlement tendency experiment of the material of the CrMo steel hydrogenation reactor. Then, based on the first transition temperature and the second transition temperature, the first pressure-rise temperature threshold for the CrMo steel hydrogenation reactor under the influence of temper embrittlement is generated through a first formula. The first formula is:

[0065] MPT 回 = vTr55 + 2.5ΔvTr55,

[0066] where MPT 回 is the first pressure-rise temperature threshold of the CrMo steel hydrogenation reactor, vTr55 is the first transition temperature, and ΔvTr55 is the second transition temperature.

[0067] It should be noted that the first pressure-rise temperature threshold of the CrMo steel hydrogenation reactor in this embodiment is not greater than 10°C.

[0068] In some preferred embodiments, in step S200, the design parameters include: the maximum operating temperature of the CrMo steel reactor, the design hydrogen partial pressure of the CrMo steel hydrogenation reactor, the wall thickness of the base material of the CrMo steel hydrogenation reactor, and the surfacing thickness of the welding consumables of the CrMo steel hydrogenation reactor; Referring to Figure 3 as shown, obtaining the design parameters of the CrMo steel hydrogenation reactor and generating the wall hydrogen concentration of the CrMo steel hydrogenation reactor under steady-state conditions based on the design parameters of the CrMo steel hydrogenation reactor specifically includes the following steps:

[0069] Step S210: Obtain the maximum operating temperature, and generate the base metal solubility of the CrMo steel hydrogenation reactor, the base metal diffusion coefficient of the CrMo steel hydrogenation reactor, the welding consumable solubility of the CrMo steel hydrogenation reactor, and the welding consumable diffusion coefficient of the CrMo steel hydrogenation reactor according to the maximum operating temperature;

[0070] Step S220: Obtain the designed hydrogen partial pressure, and generate the hydrogen concentration on the surface of the surfacing layer of the CrMo steel hydrogenation reactor according to the designed hydrogen partial pressure, the maximum operating temperature, and the welding consumable solubility;

[0071] Step S230: Obtain the base metal wall thickness and the welding consumable surfacing thickness, and generate the wall hydrogen concentration according to the hydrogen concentration on the surface of the surfacing layer, the base metal wall thickness, the base metal solubility, the base metal diffusion coefficient, the welding consumable diffusion coefficient, the welding consumable solubility, and the welding consumable surfacing thickness.

[0072] In some specific embodiments, when generating the influence of hydrogen-induced embrittlement on the minimum pressure-rise temperature of the CrMo steel hydrogenation reactor, in step S210, the base metal solubility of the CrMo steel hydrogenation reactor is generated according to the maximum operating temperature through the fifth formula, where the fifth formula is:

[0073] S 母材 =103.8e -3257 / T ,

[0074] where T is the maximum operating temperature, and S 母材 is the base metal solubility.

[0075] In step S210, the base metal diffusion coefficient of the CrMo steel hydrogenation reactor is generated according to the maximum operating temperature through the sixth formula, where the sixth formula is:

[0076] D 母材 =0.24e -2132 / T ,

[0077] where D 母材 is the base metal diffusion coefficient.

[0078] In step S210, the welding consumable solubility of the CrMo steel hydrogenation reactor is generated according to the maximum operating temperature through the seventh formula, where the seventh formula is:

[0079] S 焊材 =19.328e -541 / T ,

[0080] where S 焊材 is the welding consumable solubility.

[0081] In step S210, the welding consumable diffusion coefficient of the CrMo steel hydrogenation reactor is generated according to the maximum operating temperature through the eighth formula, where the eighth formula is:

[0082] D 焊材 = 0.769e -6411 / T ,

[0083] where D 焊材 is the diffusivity of the welding consumable.

[0084] In step S220, the hydrogen concentration on the surface of the surfacing layer of the CrMo steel hydrocracking reactor is generated according to the designed hydrogen partial pressure and the solubility of the welding consumable by the ninth formula, where the ninth formula is:

[0085]

[0086] where C S is the hydrogen concentration on the surface of the surfacing layer of the CrMo steel hydrocracking reactor, and p is the designed hydrogen partial pressure of the CrMo steel hydrocracking reactor.

[0087] In step S230, the hydrogen concentration of the vessel wall is generated according to the hydrogen concentration on the surface of the surfacing layer, the thickness of the base metal vessel wall, the solubility of the base metal, the diffusivity of the base metal, the diffusivity of the welding consumable, the solubility of the welding consumable, and the surfacing thickness of the welding consumable by the second formula, where the second formula is:

[0088]

[0089] where C b is the hydrogen concentration of the vessel wall, t 母材 is the thickness of the base metal vessel wall, t 堆焊 is the surfacing thickness of the welding consumable, C S is the hydrogen concentration on the surface of the surfacing layer of the CrMo steel hydrocracking reactor, S 母材 is the solubility of the base metal, D 母材 is the diffusivity of the base metal, S 焊材 is the solubility of the welding consumable, D 焊材 is the diffusivity of the welding consumable.

[0090] In this embodiment, first, the solubility and diffusivity of the base metal and the welding consumable of the CrMo steel hydrocracking reactor are generated by formulas, then the hydrogen concentration on the surface of the surfacing layer of the CrMo steel hydrocracking reactor is generated according to the solubility and diffusivity of the base metal and the welding consumable of the CrMo steel hydrocracking reactor by formulas, and finally the hydrogen concentration of the vessel wall under the steady-state condition of the CrMo steel hydrocracking reactor is generated according to the hydrogen concentration on the surface of the surfacing layer by formulas. The calculation is more convenient, the result is more accurate, and it is more suitable for engineering applications.

[0091] In some preferred embodiments, in step S300, the material parameters include: the yield strength of CrMo steel and the critical hydrogen resistance level of CrMo steel; generating the second pressure increase temperature threshold of the CrMo steel hydrogenation reactor under the influence of hydrogen embrittlement according to the hydrogen concentration in the vessel wall and the material parameters includes: generating the second pressure increase temperature threshold of the CrMo steel hydrogenation reactor according to the hydrogen concentration in the vessel wall, the yield strength of CrMo steel and the critical hydrogen resistance level of CrMo steel.

[0092] In some specific embodiments, in step S300, the second pressure increase temperature threshold of the CrMo steel hydrogenation reactor is generated according to the hydrogen concentration in the vessel wall, the yield strength of CrMo steel and the critical hydrogen resistance level of CrMo steel through a third formula, where the third formula is:

[0093]

[0094] Wherein, MPT 氢 is the second pressure increase temperature threshold of the CrMo steel hydrogenation reactor, C tσ-crit is the critical hydrogen resistance level of CrMo steel, σ YS is the yield strength of CrMo steel.

[0095] The second pressure increase temperature threshold of the CrMo steel hydrogenation reactor considering the influence of hydrogen embrittlement obtained by the formula in this embodiment is more convenient in generation method and more accurate in result compared with the prior art, and is more suitable for engineering applications.

[0096] In some preferred embodiments, in step S400, generating the minimum pressure increase temperature of the CrMo steel hydrogenation reactor according to the first pressure increase temperature threshold and the second pressure increase temperature threshold includes:

[0097] Comparing the magnitudes of the first pressure increase temperature threshold and the second pressure increase temperature threshold,

[0098] Obtaining a temporary pressure increase temperature threshold according to the comparison result, and the temporary pressure increase temperature threshold is the larger threshold of the first pressure increase temperature threshold and the second pressure increase temperature threshold,

[0099] Obtaining a safety margin, and generating the minimum pressure increase temperature of the CrMo steel hydrogenation reactor according to the safety margin and the temporary pressure increase temperature threshold.

[0100] In some specific embodiments, the minimum pressure rise temperature of the CrMo steel hydrogenation reactor needs to comprehensively consider the effects of material temper embrittlement and hydrogen-induced embrittlement on the minimum pressure rise temperature. First, the first pressure rise temperature threshold considering the effect of material temper embrittlement on the minimum pressure rise temperature is obtained through the first formula, then the second pressure rise temperature threshold considering the effect of hydrogen-induced embrittlement on the minimum pressure rise temperature is obtained through the third formula, and finally, the minimum pressure rise temperature of the CrMo steel hydrogenation reactor is generated according to the first pressure rise temperature threshold and the second pressure rise temperature threshold through the fourth formula. The fourth formula includes:

[0101] MPT 综 = max(MPT 回 , MPT 氢 ) + Δt,

[0102] where MPT 综 is the minimum pressure rise temperature of the CrMo steel hydrogenation reactor, Δt is the safety margin, MPT 氢 is the second pressure rise temperature threshold of the CrMo steel hydrogenation reactor, and MPT 回 is the first pressure rise temperature threshold of the CrMo steel hydrogenation reactor.

[0103] In some specific embodiments, in order to ensure the safe operation of the CrMo steel hydrogenation reactor, based on a large amount of experimental data, the safety margin is determined to be 15°C.

[0104] In this embodiment, the first pressure rise temperature threshold and the second pressure rise temperature threshold are compared, and the temperature value obtained by adding the larger temperature threshold and the safety margin is the minimum pressure rise temperature of the CrMo steel hydrogenation reactor. Compared with the prior art, on the one hand, the calculation of the present invention is more convenient and the result is more accurate, which can effectively avoid safety accidents caused by brittle fracture of the CrMo steel hydrogenation reactor during startup. On the other hand, the finally generated minimum pressure rise temperature is lower than the value obtained by the graphical method, which can play a role in energy conservation and consumption reduction, has good economy, and is more suitable for engineering applications.

[0105] In some preferred embodiments, at the minimum pressure rise temperature of the CrMo steel hydrogenation reactor, when starting again after the first start, the pressure of the CrMo steel hydrogenation reactor is not greater than 22% - 30% of the design pressure.

[0106] It should be noted that in this embodiment, when the CrMo steel hydrogenation reactor is first started at the lowest pressure-rise temperature obtained, there is no hydrogen in the CrMo steel hydrogenation reactor. Only the influence of material temper embrittlement on the lowest pressure-rise temperature of the CrMo steel hydrogenation reactor needs to be considered, and the influence of hydrogen-induced embrittlement on the lowest pressure-rise temperature of the CrMo steel hydrogenation reactor does not need to be considered. However, when the CrMo steel hydrogenation reactor is restarted after the first start, there is residual hydrogen in the reactor wall. To ensure the safe start of the CrMo steel hydrogenation reactor, the influence of material temper embrittlement and hydrogen-induced embrittlement on the lowest pressure-rise temperature of the CrMo steel hydrogenation reactor needs to be considered. At this time, if the temperature of the CrMo steel hydrogenation reactor is lower than the lowest pressure-rise temperature of the CrMo steel hydrogenation reactor, it is necessary to ensure that the pressure borne by the CrMo steel hydrogenation reactor does not exceed 22%-30% of the design pressure; if the pressure in the CrMo steel hydrogenation reactor reaches the design pressure completely, the metal temperature of the CrMo steel hydrogenation reactor shall not be lower than the lowest pressure-rise temperature of the CrMo steel hydrogenation reactor.

[0107] As Figure 4 shown, the embodiment of the present invention also provides a device for obtaining the lowest pressure-rise temperature of a CrMo steel hydrogenation reactor, including:

[0108] An acquisition unit for acquiring the material test data of the CrMo steel hydrogenation reactor, the design parameters of the CrMo steel hydrogenation reactor, and the material parameters of the CrMo steel hydrogenation reactor;

[0109] A generation unit for generating a first pressure-rise temperature threshold of the CrMo steel hydrogenation reactor under the influence of temper embrittlement according to the material test data;

[0110] The generation unit is further configured to generate the hydrogen concentration in the reactor wall under the steady-state condition of the CrMo steel hydrogenation reactor according to the design parameters;

[0111] The generation unit is further configured to generate a second pressure-rise temperature threshold of the CrMo steel hydrogenation reactor under the influence of hydrogen-induced embrittlement according to the hydrogen concentration in the reactor wall and the material parameters;

[0112] The generation unit is further configured to generate the lowest pressure-rise temperature of the CrMo steel hydrogenation reactor according to the first pressure-rise temperature threshold and the second pressure-rise temperature threshold.

[0113] In some preferred embodiments, the generation unit is configured to generate a first pressure-rise temperature threshold of the CrMo steel hydrogenation reactor under the influence of temper embrittlement according to the material test data, including:

[0114] The generation unit is configured to generate a first pressure-rise temperature threshold of the CrMo steel hydrogenation reactor under the influence of temper embrittlement through a first formula according to the first transformation temperature and the second transformation temperature.

[0115] In some preferred embodiments, the generating unit is configured to generate the hydrogen concentration in the wall of the CrMo steel hydrogenation reactor under steady-state conditions according to the design parameters of the CrMo steel hydrogenation reactor, including:

[0116] The generating unit is configured to generate the solubility of the base metal of the CrMo steel hydrogenation reactor, the diffusion coefficient of the base metal of the CrMo steel hydrogenation reactor, the solubility of the welding consumables of the CrMo steel hydrogenation reactor, and the diffusion coefficient of the welding consumables of the CrMo steel hydrogenation reactor according to the maximum operating temperature;

[0117] The generating unit is configured to generate the hydrogen concentration on the surface of the surfacing layer of the CrMo steel hydrogenation reactor according to the designed hydrogen partial pressure, the solubility of the welding consumables, and the maximum operating temperature;

[0118] The generating unit is configured to generate the hydrogen concentration in the wall according to the hydrogen concentration on the surface of the surfacing layer, the thickness of the base metal wall, the solubility of the base metal, the diffusion coefficient of the base metal, the diffusion coefficient of the welding consumables, the solubility of the welding consumables, and the surfacing thickness of the welding consumables.

[0119] In some preferred embodiments, the generating unit is further configured to generate a second pressure boosting temperature threshold of the CrMo steel hydrogenation reactor under the influence of hydrogen-induced embrittlement according to the hydrogen concentration in the wall and the material parameters, including:

[0120] The generating unit is configured to generate a second pressure boosting temperature threshold of the CrMo steel hydrogenation reactor according to the hydrogen concentration in the wall, the yield strength of the CrMo steel, and the critical hydrogen resistance level of the CrMo steel.

[0121] The device for obtaining the minimum pressure boosting temperature of the CrMo steel hydrogenation reactor described in this embodiment has the same advantages as the method for obtaining the minimum pressure boosting temperature of the CrMo steel hydrogenation reactor over the prior art, and will not be elaborated here.

[0122] As Figure 5 shown, an embodiment of the present invention further provides a computer device, including a memory and a processor:

[0123] The memory is used to store a computer program;

[0124] The processor is configured to implement the method for obtaining the minimum pressure boosting temperature of the above-mentioned CrMo steel hydrogenation reactor when executing the computer program.

[0125] Figure 5 shows the internal structure diagram of a computer device in an embodiment. The computer device may specifically be Figure 1 the terminal 110 (or the server 120) in Figure 5As shown, the computer device includes a processor, a memory, a network interface, an input device, and a display screen connected via a system bus. Among them, the memory includes a non-volatile storage medium and an internal memory. The non-volatile storage medium of the computer device stores an operating system and can also store a computer program. When the computer program is executed by the processor, the processor can implement the method for obtaining the lowest pressure boosting temperature of the CrMo steel hydrogenation reactor. The internal memory can also store a computer program. When the computer program is executed by the processor, the processor can execute the method for obtaining the lowest pressure boosting temperature of the CrMo steel hydrogenation reactor. The display screen of the computer device can be a liquid crystal display screen or an electronic ink display screen. The input device of the computer device can be a touch layer covering the display screen, or a button, a trackball, or a touchpad provided on the outer shell of the computer device, or an external keyboard, a touchpad, or a mouse, etc.

[0126] An embodiment of the present invention also provides a computer-readable storage medium. When the computer program stored in the computer-readable storage medium is read and run by a processor, the method for obtaining the lowest pressure boosting temperature of the above-mentioned CrMo steel hydrogenation reactor is implemented.

[0127] Those of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing relevant hardware through a computer program. The program can be stored in a non-volatile computer-readable storage medium. When the program is executed, it can include the processes of the above-mentioned method embodiments. Among them, any reference to a memory, storage, database, or other medium used in the various embodiments provided in the present application can include non-volatile and / or volatile memories. Non-volatile memories can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memories can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), etc.

[0128] To prove the accuracy of the method for obtaining the minimum pressure rise temperature of the CrMo steel hydrogenation reactor in this embodiment, the method for obtaining the minimum pressure rise temperature of the CrMo steel hydrogenation reactor by using the graphical method in the prior art is compared with the method for obtaining the minimum pressure rise temperature of the CrMo steel hydrogenation reactor in this embodiment, as follows:

[0129] Taking a certain Cr-Mo steel hydrogenation reactor as an example, Table 1 shows the design parameters and material parameters of a certain Cr-Mo steel hydrogenation reactor.

[0130] Table 1 Design parameters and material parameters of a certain Cr-Mo steel hydrogenation reactor

[0131]

[0132]

[0133] Example 1:

[0134] The method for obtaining the minimum pressure rise temperature of the CrMo steel hydrogenation reactor provided by the present invention is used to obtain the minimum pressure rise temperature of a certain Cr-Mo steel hydrogenation reactor. The specific steps include:

[0135] Step 1: Generate the minimum pressure rise temperature MPT considering the influence of material temper embrittlement according to the experimental data of material temper embrittlement tendency through the first formula 回 = vTr54 + 2.5△vTr54 ≤ 10°C.

[0136] Step 2: Generate the wall hydrogen concentration under the steady-state operation of the Cr-Mo steel hydrogenation reactor according to the design parameters of the Cr-Mo steel hydrogenation reactor (in Table 1), including:

[0137] Step 2.1: Generate the base metal solubility of the CrMo steel hydrogenation reactor, the base metal diffusion coefficient of the CrMo steel hydrogenation reactor, the weld metal solubility of the CrMo steel hydrogenation reactor, and the weld metal diffusion coefficient of the CrMo steel hydrogenation reactor according to the maximum operating temperature:

[0138] Base metal solubility: S 母材 = 103.8e -3257 / T = 7.81E-01;

[0139] Base metal diffusion coefficient: D 母材 = 0.24e -2132 / T = 9.78E-03;

[0140] Weld metal solubility: S 焊材 = 19.328e -541 / T = 8.58E+00;

[0141] Weld metal diffusion coefficient: D 焊材 = 0.769e-6411 / T = 5.09E-05.

[0142] Step 2.2: Generate the hydrogen concentration on the surface of the surfacing layer of the CrMo steel hydrogenation reactor according to the designed hydrogen partial pressure, the maximum operating temperature, and the solubility of the welding consumables:

[0143]

[0144] Step 2.3: Generate the hydrogen concentration in the wall of the CrMo steel hydrogenation reactor according to the solubility of the base metal, the diffusion coefficient of the base metal, the solubility of the welding consumables, the diffusion coefficient of the welding consumables, the hydrogen concentration on the surface of the surfacing layer, the thickness of the base metal wall, and the thickness of the welding consumables surfacing:

[0145]

[0146] Step 3: Generate the minimum pressure rise temperature of the CrMo steel hydrogenation reactor considering the influence of hydrogen embrittlement according to the hydrogen concentration in the wall, the yield strength of the CrMo steel, and the critical hydrogen resistance level of the CrMo steel:

[0147]

[0148] Step 4: Comprehensively consider the influence of material temper embrittlement on the minimum pressure rise temperature and the influence of hydrogen-induced embrittlement on the minimum pressure rise temperature:

[0149] MPT 综 = max(MPT 回 , MPT 氢 ) + Δt = 54°C

[0150] where Δt = 15°C.

[0151] The minimum pressure rise temperature of the CrMo steel hydrogenation reactor obtained by using the method for generating the minimum pressure rise temperature of the CrMo steel hydrogenation reactor provided by the present invention is 54°C. That is to say, when the CrMo steel hydrogenation reactor is started, if the pressure inside the CrMo steel hydrogenation reactor reaches the designed pressure completely, the metal temperature of the CrMo steel hydrogenation reactor shall not be lower than 54°C; if the metal temperature of the CrMo steel hydrogenation reactor is lower than 54°C, it is necessary to ensure that the pressure borne by the CrMo steel hydrogenation reactor is lower than 22% - 30% of the designed pressure.

[0152] Example 2:

[0153] Generate the minimum pressure rise temperature of a certain CrMo steel hydrogenation reactor by using the graphical method, including:

[0154] Step 1: Generate the minimum pressure rise temperature considering the influence of material temper embrittlement through the first formula according to the experimental data of the material temper embrittlement tendency, MPT 回 = vTr54 + 2.5△vTr54 ≤ 10°C.

[0155] Step 2: According to Figure 6 , find the hydrogen concentration in the reactor wall under the steady-state operation of the Cr-Mo steel hydrogenation reactor. Figure 6 is a curve graph of the relationship between hydrogen partial pressure and hydrogen concentration, where F represents Fahrenheit. The hydrogen concentration in the reactor wall is 1.6 ppm obtained from a hydrogen partial pressure of 6.09 MPa (883.3 psi) and an operating temperature of 393 °C.

[0156] Step 3: According to Figure 7 , find the minimum pressure boost temperature of the CrMo steel hydrogenation reactor considering the influence of hydrogen embrittlement. Figure 7 is a curve graph of the relationship between hydrogen concentration and temperature. From Figure 7 , it can be obtained that when the hydrogen concentration in the reactor wall is 1.6 ppm, the corresponding temperature is 59 °C.

[0157] Step 4: Comprehensively consider the minimum pressure boost temperature of CrMo steel hydrogenation considering the influence of material temper embrittlement and the minimum pressure boost temperature of the CrMo steel hydrogenation reactor considering the influence of hydrogen embrittlement:

[0158] MPT 综 = max(MPT 回 , MPT 氢 ) + Δt = 74 °C.

[0159] where, Δt = 15 °C.

[0160] That is to say, during startup, if the pressure in the CrMo steel hydrogenation reactor reaches the design pressure completely, the metal temperature of the CrMo steel hydrogenation reactor shall not be lower than 74 °C; if the metal temperature of the CrMo steel hydrogenation reactor is lower than 74 °C, it is necessary to ensure that the pressure borne by the CrMo steel hydrogenation reactor is lower than 22% - 30% of the design pressure.

[0161] By comparing Example 1 and Example 2, it can be analyzed that, on the one hand, the minimum pressure boost temperature of the CrMo steel hydrogenation reactor obtained by the method for obtaining the minimum pressure boost temperature of the CrMo steel hydrogenation reactor provided by the present invention is 20 °C lower than that obtained by the graphical search method, and the temperature is lower, which can play a role in energy conservation and consumption reduction. On the other hand, the method for obtaining the minimum pressure boost temperature of the CrMo steel hydrogenation reactor provided by the present invention is an analytical method, which has a detailed generation process, is easy to be programmed, and is more convenient to apply.

[0162] Although the present invention is disclosed as above, the protection scope of the present invention is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will all fall within the protection scope of the present invention.

Claims

1. A method for obtaining the minimum pressure rise temperature of a CrMo steel hydrogenation reactor, characterized in that, Including: Obtain the material test data of the CrMo steel hydrogenation reactor, and generate a first pressure increase temperature threshold of the CrMo steel hydrogenation reactor under the influence of temper embrittlement according to the material test data, wherein the material test data is obtained through a temper embrittlement tendency experiment of the material of the CrMo steel hydrogenation reactor; Obtain the design parameters of the CrMo steel hydrogenation reactor, and generate the hydrogen concentration in the reactor wall under the steady-state condition of the CrMo steel hydrogenation reactor according to the design parameters; Obtain the material parameters of the CrMo steel hydrogenation reactor, and generate a second pressure increase temperature threshold of the CrMo steel hydrogenation reactor under the influence of hydrogen-induced embrittlement according to the hydrogen concentration in the reactor wall and the material parameters; Generate the lowest pressure increase temperature of the CrMo steel hydrogenation reactor according to the first pressure increase temperature threshold and the second pressure increase temperature threshold.

2. The method for obtaining the minimum pressure rise temperature of the CrMo steel hydrogenation reactor according to claim 1, characterized in that, The material test data includes a first transition temperature and a second transition temperature, wherein the first transition temperature is the transition temperature corresponding to a Charpy impact energy of 54 joules after the minimum simulated post-weld heat treatment in the temper embrittlement tendency experiment, and the second transition temperature is the increment of the transition temperature corresponding to a Charpy impact energy of 54 joules after the minimum simulated post-weld heat treatment and step cooling in the temper embrittlement tendency experiment and the first transition temperature; Generating a first pressure increase temperature threshold of the CrMo steel hydrogenation reactor under the influence of temper embrittlement according to the material test data includes: generating the first pressure increase temperature threshold according to the first transition temperature and the second transition temperature.

3. The method for obtaining the minimum pressure boosting temperature of the CrMo steel hydrogenation reactor according to claim 1 or 2, characterized in that The first pressure increase temperature threshold is not greater than 10 °C.

4. The method for obtaining the minimum pressure boosting temperature of the CrMo steel hydrogenation reactor according to claim 1, wherein, The design parameters include: the maximum operating temperature of the CrMo steel hydrogenation reactor, the design hydrogen partial pressure of the CrMo steel hydrogenation reactor, the thickness of the base metal reactor wall of the CrMo steel hydrogenation reactor, and the thickness of the weld metal surfacing of the CrMo steel hydrogenation reactor; Obtaining the design parameters of the CrMo steel hydrogenation reactor and generating the hydrogen concentration in the reactor wall under the steady-state condition of the CrMo steel hydrogenation reactor according to the design parameters of the CrMo steel hydrogenation reactor includes: Obtain the maximum operating temperature, and generate the solubility of the base metal of the CrMo steel hydrogenation reactor, the diffusion coefficient of the base metal of the CrMo steel hydrogenation reactor, the solubility of the weld metal of the CrMo steel hydrogenation reactor, and the diffusion coefficient of the weld metal of the CrMo steel hydrogenation reactor according to the maximum operating temperature; Obtain the design hydrogen partial pressure, and generate the hydrogen concentration on the surface of the surfacing layer of the CrMo steel hydrogenation reactor according to the design hydrogen partial pressure, the solubility of the weld metal, and the maximum operating temperature; Obtain the thickness of the base metal reactor wall and the thickness of the weld metal surfacing, and generate the hydrogen concentration in the reactor wall according to the hydrogen concentration on the surface of the surfacing layer, the thickness of the base metal reactor wall, the solubility of the base metal, the diffusion coefficient of the base metal, the diffusion coefficient of the weld metal, the solubility of the weld metal, and the thickness of the weld metal surfacing.

5. The method for obtaining the minimum pressure boosting temperature of a CrMo steel hydrogenation reactor according to claim 4, characterized in that, Generating the hydrogen concentration of the vessel wall according to the hydrogen concentration on the surface of the surfacing layer, the thickness of the base metal vessel wall, the solubility of the base metal, the diffusion coefficient of the base metal, the diffusion coefficient of the welding material, the solubility of the welding material, and the surfacing thickness of the welding material includes: Generating the hydrogen concentration of the vessel wall according to the hydrogen concentration on the surface of the surfacing layer, the thickness of the base metal vessel wall, the solubility of the base metal, the diffusion coefficient of the base metal, the diffusion coefficient of the welding material, the solubility of the welding material, and the surfacing thickness of the welding material through a second formula, and the second formula is: Among them, C b is the hydrogen concentration in the wall, t 母材 is the thickness of the base metal wall, t 堆焊 is the surfacing thickness of the welding consumables, C S is the hydrogen concentration on the surface of the surfacing layer, S 母材 is the solubility of the base metal, D 母材 is the diffusion coefficient of the base metal, S 焊材 is the solubility of the welding consumables, D 焊材 is the diffusion coefficient of the welding consumables.

6. The method for obtaining the minimum pressure rise temperature of the CrMo steel hydrogenation reactor according to claim 5, characterized in that The material parameters include: the yield strength of CrMo steel and the critical hydrogen resistance level of CrMo steel; Generating the second boost temperature threshold of the CrMo steel hydrogenation reactor under the influence of hydrogen embrittlement according to the hydrogen concentration of the vessel wall and the material parameters includes: Generating the second boost temperature threshold of the CrMo steel hydrogenation reactor according to the hydrogen concentration of the vessel wall, the yield strength of CrMo steel, and the critical hydrogen resistance level of CrMo steel.

7. The method for obtaining the minimum pressure rise temperature of a CrMo steel hydrogenation reactor according to claim 6, characterized in that, Generating the second boost temperature threshold of the CrMo steel hydrogenation reactor according to the hydrogen concentration of the vessel wall, the yield strength of CrMo steel, and the critical hydrogen resistance level of CrMo steel includes: Generating the second boost temperature threshold of the CrMo steel hydrogenation reactor according to the hydrogen concentration of the vessel wall, the yield strength of CrMo steel, and the critical hydrogen resistance level of CrMo steel through a third formula, and the third formula is: Among them, MPT is the second pressure increase temperature threshold of the CrMo steel hydrogenation reactor, C tσ-crit is the key hydrogen resistance level of the CrMo steel, and σ YS is the yield strength of the CrMo steel.

8. The method for obtaining the minimum pressure rise temperature of the CrMo steel hydrogenation reactor according to claim 1, characterized in that Generating the minimum boost temperature of the CrMo steel hydrogenation reactor according to the first boost temperature threshold and the second boost temperature threshold includes: Comparing the magnitudes of the first boost temperature threshold and the second boost temperature threshold, Obtaining a temporary boost temperature threshold according to the comparison result, and the temporary boost temperature threshold is the larger threshold of the first boost temperature threshold and the second boost temperature threshold, Obtaining a safety margin, and generating the minimum boost temperature of the CrMo steel hydrogenation reactor according to the safety margin and the temporary boost temperature threshold.

9. An acquisition device for the lowest pressure boosting temperature of a CrMo steel hydrogenation reactor, characterized in that, Includes: An acquisition unit for acquiring the material test data of the CrMo steel hydrogenation reactor, the design parameters of the CrMo steel hydrogenation reactor, and the material parameters of the CrMo steel hydrogenation reactor; A generation unit for generating the first boost temperature threshold of the CrMo steel hydrogenation reactor under the influence of temper embrittlement according to the material test data; The generation unit is further configured to generate the hydrogen concentration of the vessel wall under the steady-state condition of the CrMo steel hydrogenation reactor according to the design parameters; The generation unit is further configured to generate the second boost temperature threshold of the CrMo steel hydrogenation reactor under the influence of hydrogen embrittlement according to the hydrogen concentration of the vessel wall and the material parameters; The generation unit is further configured to generate the minimum boost temperature of the CrMo steel hydrogenation reactor according to the first boost temperature threshold and the second boost temperature threshold.

10. A computer device, characterized in that, Includes a memory and a processor: The memory is used for storing a computer program; The processor is configured to, when executing the computer program, implement the method for obtaining the minimum boost temperature of the CrMo steel hydrogenation reactor according to any one of claims 1-8.

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