CN-121980745-A - Integrated selection type computing system and method for safety valve

CN121980745ACN 121980745 ACN121980745 ACN 121980745ACN-121980745-A

Abstract

The invention relates to an integrated type selection calculation system and method for a safety valve, which ensure that a type selection result meets actual requirements by comprehensively considering multi-working condition parameter calculation and auxiliary selection of valve type, materials, nominal diameter and nominal pressure, improve the type selection accuracy, remarkably reduce the time cost of manual calculation and type selection by automatic calculation and intelligent recommendation functions, greatly improve the type selection efficiency, support the type selection of the safety valve with various standards and connection types and meet the requirements of different industries and application scenes.

Inventors

ZHANG XIANGYU
HE WEI
WU ZHAOYANG
HOU YAJIE
DUAN MIAOMIAO
CHEN DIANJING
MA JING

Assignees

北京航天石化技术装备工程有限公司

Dates

Publication Date: 20260505
Application Date: 20251209

Claims (8)

1. The integrated safety valve selection type computing system is characterized by comprising a parameter input module, a safety valve type selection module, a sizing computation module, a material selection module, a nominal diameter and nominal pressure determination module, a structure accessory and special requirement module, an emission counterforce and noise computation module, a selection result output module and a database; The parameter input module supports a user to input parameters and technical requirements under different overpressure working conditions and automatically performs rationality verification, wherein the parameters comprise medium states, flow rates, temperatures and pressures, and the technical requirements comprise manufacturing qualification, structural types and whether the parameters are connected with a rupture disk in series or not; The database comprises mapping relations between working condition parameters, technical requirements and safety valve types under different working conditions, mapping relations between sizing methods and parameters under different working conditions, part material configuration of each type of the safety valve, applicable temperature data of the part materials, safety valve type characteristics, temperature and pressure curves of various safety valve standards, mapping relations between safety valve types, valve body materials, temperatures, pressures, specifications and pounds; the safety valve type selection module is used for comparing and logically judging the input technical requirements, working condition parameters and the database to obtain a proper safety valve type under the current input condition; The sizing calculation module is embedded with a plurality of sizing calculation methods, selects a corresponding sizing calculation method according to working condition parameters, determines parameters involved in sizing calculation by inquiring a database according to the safety valve type selected by the safety valve type selection module, and calculates to obtain the required flow passage area of the safety valve; the material selection module is used for automatically recommending the materials of all parts of the safety valve by inquiring a database after a user selects the valve body materials based on the working condition parameters and the type of the safety valve; The nominal diameter and nominal pressure determining module is used for automatically determining the nominal diameter and nominal pressure of the American standard or European standard series flange connection safety valve according to the flow passage area and working condition parameters of the safety valve calculated by the sizing calculating module and the mapping relation in the database; The structure accessory and special requirement module supports a user to select the structure accessory of the safety valve and inputs the special structure requirement and other special requirements; The emission counter-force and noise calculation module is used for automatically calculating the emission counter-force and noise level according to the working condition parameters and providing comprehensive selection reference for users; And the selection result output module is used for inquiring the database according to the type of the safety valve, the flow passage area, the materials, the structural accessories, the discharge counter force and the noise level, generating the model code and the connection size data of the valve, outputting a specification and a calculation book to the upstream and outputting a data file to the downstream according to the valve selection result.
2. The integrated safety valve selecting and calculating system according to claim 1, wherein the sizing calculating module is embedded with sizing calculating methods comprising a gas working condition sizing calculating method, a steam working condition sizing calculating method, a non-viscous liquid working condition sizing calculating method, a viscous liquid working condition sizing calculating method and a two-phase flow working condition sizing calculating method.
3. The integrated type selection computing system of the safety valve according to claim 1, wherein the material selection module obtains parts needing to be determined of materials according to the type of the safety valve, screens out inapplicable parts of materials in advance according to working condition parameters, and gives a list for selecting each part needing to be determined of materials; And after the valve body material is selected by a user, the material of each part of the safety valve is automatically recommended, and the user is allowed to modify according to actual requirements.
4. The integrated safety valve selecting and calculating system as set forth in claim 1, wherein the nominal diameter and nominal pressure determining module obtains the required design temperature and pressure of the safety valve, valve body material and flow passage area of the safety valve according to the working condition parameters, and the most suitable nominal diameter and nominal pressure of the current safety valve are obtained through comprehensive judgment of a temperature-pressure curve parameter table and a typical nominal diameter table of the type of the safety valve in the database, so that manual adjustment of a user is supported.
5. The integrated safety valve selection computing system of claim 1, wherein the parameter input module allows a user to add or delete operating conditions as desired.
6. The integrated safety valve selecting computing system as set forth in claim 1, wherein the structural attachment of the safety valve comprises a safety valve attachment and a switching valve.
7. The integrated type selection computing system of the safety valve according to claim 1, wherein the parameter input module interacts with the database according to the content of the working condition parameters input by the user, and only displays the working condition parameters which need to be filled in under the current working condition.
8. The integrated type selection calculation method for the safety valve is characterized by comprising the following steps of: The method comprises the steps of acquiring working condition parameters and technical requirements input by a user, inputting the working condition parameters and storing the working condition parameters into an information base under the selected valve, rationally judging the working condition parameters input by the user, identifying the condition that logic conflict exists among the missed working condition parameters or the working condition parameters, prompting the user to change if the condition exists; Comparing the inputted technical requirements and working condition parameters with rules of a database and performing logic judgment to obtain a proper safety valve type under the current input condition; The sizing calculation method for determining each overpressure working condition according to the working condition parameters, determining parameters in sizing calculation according to the type of the safety valve, calculating to obtain the flow passage area, comparing the maximum flow passage area with the flow passage area of the current type of the serialization valve in the database, recommending a proper flow passage area for the user to determine and simultaneously allowing the user to change; The method comprises the steps of obtaining parts needing to be determined of materials according to the types of the safety valves, screening out inapplicable parts of materials in advance according to working condition parameters, and selecting a list for each part needing to be determined of materials; Obtaining the design temperature and pressure required by the valve according to working condition parameters, and comprehensively judging the most suitable nominal diameter and nominal pressure of the current valve according to the valve body material and the flow passage area of the safety valve through a temperature-pressure curve parameter table and a typical nominal diameter table of the valve type in a database; Corresponding structural accessories and special requirements are given for the user to select according to the type of the safety valve. Calculating and displaying the discharge counter force and noise according to the working condition parameters and the valve nominal diameter data; Writing working condition parameters, technical requirements, safety valve types, flow passage areas, materials, structural accessories, emission counterforces and noise levels into a valve information base, performing interactive judgment with the database according to the content of the valve information base, generating valve model codes and connection size data, and displaying the valve model codes and the connection size data; and outputting a specification and a calculation book to the upstream and outputting a data file to the downstream according to the valve type selection result.

Description

Integrated selection type computing system and method for safety valve Technical Field The invention belongs to the field of industrial safety equipment, and relates to a safety valve integrated selection computing system and method. Background In the industrial production process, the safety valve is used as a key safety protection device for preventing the overpressure of the system and guaranteeing the safety of equipment and personnel. The traditional safety valve type selection mainly depends on experience and manual calculation of engineers, and has the problems of inaccurate type selection, low efficiency and the like. Along with the development of industrial automation and intellectualization, higher requirements are put on the precision and the efficiency of the safety valve model selection. The following six problems restrict the type selection efficiency and the type selection accuracy, and need to be solved: (1) The multi-working-condition overpressure protection calculation is that the container or the pipeline protected by the safety valve is generally more than one working condition requiring overpressure protection, and parameters of each overpressure working condition are not consistent, such as medium parameters, discharge temperature, required discharge amount and the like. The existing type selection software can only calculate and output single overpressure protection working conditions, when multiple overpressure working conditions exist simultaneously, result comparison is carried out after manual multiple times of calculation are needed, and meanwhile, the safety valve type selection result is manually output, so that the efficiency is low and errors are easy to occur. (2) The safety valve type is suitable for different application working conditions and technical requirements, multi-dimensional condition screening such as low temperature, high back pressure, small pressure difference and the like is needed, the type selection needs to be judged one by one, the experience requirement on type selection personnel is high, the type selection efficiency is restricted, and once the insufficiency is considered, the use on a valve line is directly influenced, so that the risk of the safety valve is high. (3) During the selection, the parameters of various working conditions are filled manually, error leakage is difficult to avoid, and the accuracy of the selection is restricted. (4) The material selection of the safety valve is carried out, the material of key parts is required to be confirmed when the safety valve is selected, generally, a safety valve buyer only gives the valve body material and the valve cover material, the valve trim material is absent, the corresponding material is given according to experience by a type selecting person, and the material selection error is easy to cause. (5) The nominal diameter and the nominal pressure of the connecting flange of the safety valve are selected, corresponding numerical values are obtained according to the characteristics of the type of the safety valve and the standard temperature pressure curve, and the nominal diameter and the nominal pressure are easily selected by manual selection. (6) The unit conversion, the existing model selection software adopts common metric units, and for model selection of other unit systems, the unit conversion is needed to be carried into the software for calculation after the manual operation, so that the efficiency is low and errors are easy to occur. Therefore, the development of the safety valve integrated type selection computing system capable of comprehensively considering the multiple working condition parameters, the complex medium characteristics and the material selection has important practical significance. Disclosure of Invention The invention solves the technical problems of overcoming the defects of the prior art, and provides a safety valve integrated type selection computing system and a safety valve integrated type selection computing method, which can automatically complete tasks such as type selection computing, material selection, nominal diameter determination, nominal pressure determination and the like of a safety valve according to multiple working condition parameters, medium characteristics and technical requirements input by a user, and improve the accuracy and efficiency of type selection. The solution of the invention is as follows: The integrated safety valve selection computing system comprises a parameter input module, a safety valve type selection module, a sizing computation module, a material selection module, a nominal diameter and nominal pressure determination module, a structure accessory and special requirement module, an emission counterforce and noise computation module, a selection result output module and a database; The parameter input module supports a user to input parameters and technical requirements under different overpressure working conditions and aut